diff --git a/app.py b/app.py
new file mode 100644
index 0000000000000000000000000000000000000000..a6097b4c2d413550257176c08577ba6bd05a1768
--- /dev/null
+++ b/app.py
@@ -0,0 +1,139 @@
+import cv2
+import argparse
+import gradio as gr
+import numpy as np
+
+# MMOCR
+from mmocr.apis.inferencers import MMOCRInferencer
+
+# BUILD MMOCR
+
+
+def arg_parse():
+    parser = argparse.ArgumentParser(description='MMOCR demo for gradio app')
+    parser.add_argument(
+        '--rec_config',
+        type=str,
+        default='mmocr-dev-1.x/configs/textrecog/maerec/maerec_b_union14m.py',
+        help='The recognition config file.')
+    parser.add_argument(
+        '--rec_weight',
+        type=str,
+        default=
+        'mmocr-dev-1.x/work_dirs/maerec_b_union14m/maerec_b_union14m.pth',
+        help='The recognition weight file.')
+    parser.add_argument(
+        '--det_config',
+        type=str,
+        default=
+        'mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015.py',  # noqa,
+        help='The detection config file.')
+    parser.add_argument(
+        '--det_weight',
+        type=str,
+        default='mmocr-dev-1.x/dbnetpp.pth',
+        help='The detection weight file.')
+    parser.add_argument(
+        '--device',
+        type=str,
+        default='cuda:0',
+        help='The device used for inference.')
+    args = parser.parse_args()
+    return args
+
+
+def run_mmocr(img: np.ndarray, use_detector: bool = True):
+    """Run MMOCR and SAM
+
+    Args:
+        img (np.ndarray): Input image
+        use_detector (bool, optional): Whether to use detector. Defaults to
+            True.
+    """
+    if use_detector:
+        mode = 'det_rec'
+    else:
+        mode = 'rec'
+    # Build MMOCR
+    mmocr_inferencer.mode = mode
+    result = mmocr_inferencer(img, return_vis=True)
+    visualization = result['visualization'][0]
+    result = result['predictions'][0]
+
+    if mode == 'det_rec':
+        rec_texts = result['rec_texts']
+        det_polygons = result['det_polygons']
+        det_results = []
+        for rec_text, det_polygon in zip(rec_texts, det_polygons):
+            det_polygon = np.array(det_polygon).astype(np.int32).tolist()
+            det_results.append(f'{rec_text}: {det_polygon}')
+        out_results = '\n'.join(det_results)
+        visualization = cv2.cvtColor(
+            np.array(visualization), cv2.COLOR_RGB2BGR)
+    else:
+        rec_text = result['rec_texts'][0]
+        rec_score = result['rec_scores'][0]
+        out_results = f'pred: {rec_text} \n score: {rec_score:.2f}'
+        visualization = None
+    return visualization, out_results
+
+
+if __name__ == '__main__':
+    args = arg_parse()
+    mmocr_inferencer = MMOCRInferencer(
+        args.det_config,
+        args.det_weight,
+        args.rec_config,
+        args.rec_weight,
+        device=args.device)
+
+    with gr.Blocks() as demo:
+        with gr.Row():
+            with gr.Column(scale=1):
+                gr.HTML("""
+                    <div style="text-align: center; max-width: 1200px; margin: 20px auto;">
+                    <h1 style="font-weight: 900; font-size: 3rem; margin: 0rem">
+                        MAERec: A MAE-pretrained Scene Text Recognizer
+                    </h1>
+                    <h3 style="font-weight: 450; font-size: 1rem; margin: 0rem"> 
+                    [<a href="https://arxiv.org/abs/2305.10855" style="color:blue;">arXiv</a>] 
+                    [<a href="https://github.com/Mountchicken/Union14M" style="color:green;">Code</a>]
+                    </h3>
+                    <h2 style="text-align: left; font-weight: 600; font-size: 1rem; margin-top: 0.5rem; margin-bottom: 0.5rem">
+                    MAERec is a scene text recognition model composed of a ViT backbone and a Transformer decoder in auto-regressive
+                    style. It shows an outstanding performance in scene text recognition, especially when pre-trained on the
+                    Union14M-U through MAE.
+                    </h2>
+                    <h2 style="text-align: left; font-weight: 600; font-size: 1rem; margin-top: 0.5rem; margin-bottom: 0.5rem">
+                    In this demo, we combine MAERec with DBNet++ to build an
+                    end-to-end scene text recognition model.
+                    </h2>
+                    </div>
+                    """)
+                gr.Image('github/maerec.png')
+            with gr.Column(scale=1):
+                input_image = gr.Image(label='Input Image')
+                output_image = gr.Image(label='Output Image')
+                use_detector = gr.Checkbox(
+                    label=
+                    'Use Scene Text Detector or Not (Disabled for Recognition Only)',
+                    default=True)
+                det_results = gr.Textbox(label='Detection Results')
+                mmocr = gr.Button('Run MMOCR')
+                gr.Markdown("## Image Examples")
+        with gr.Row():
+            gr.Examples(
+                examples=[
+                    'github/author.jpg', 'github/gradio1.jpeg',
+                    'github/Art_Curve_178.jpg', 'github/cute_3.jpg',
+                    'github/cute_168.jpg', 'github/hiercurve_2229.jpg',
+                    'github/ic15_52.jpg', 'github/ic15_698.jpg',
+                    'github/Art_Curve_352.jpg'
+                ],
+                inputs=input_image,
+            )
+        mmocr.click(
+            fn=run_mmocr,
+            inputs=[input_image, use_detector],
+            outputs=[output_image, det_results])
+    demo.launch(debug=True)
diff --git a/mmocr-dev-1.x/.circleci/config.yml b/mmocr-dev-1.x/.circleci/config.yml
new file mode 100644
index 0000000000000000000000000000000000000000..05bf6d2c08bf787b91abeecf09586ac9aecad71c
--- /dev/null
+++ b/mmocr-dev-1.x/.circleci/config.yml
@@ -0,0 +1,34 @@
+version: 2.1
+
+# this allows you to use CircleCI's dynamic configuration feature
+setup: true
+
+# the path-filtering orb is required to continue a pipeline based on
+# the path of an updated fileset
+orbs:
+  path-filtering: circleci/path-filtering@0.1.2
+
+workflows:
+  # the always-run workflow is always triggered, regardless of the pipeline parameters.
+  always-run:
+    jobs:
+      # the path-filtering/filter job determines which pipeline
+      # parameters to update.
+      - path-filtering/filter:
+          name: check-updated-files
+          # 3-column, whitespace-delimited mapping. One mapping per
+          # line:
+          # <regex path-to-test> <parameter-to-set> <value-of-pipeline-parameter>
+          mapping: |
+            mmocr/.* lint_only false
+            requirements/.* lint_only false
+            tests/.* lint_only false
+            tools/.* lint_only false
+            configs/.* lint_only false
+            .circleci/.* lint_only false
+          base-revision: dev-1.x
+          # this is the path of the configuration we should trigger once
+          # path filtering and pipeline parameter value updates are
+          # complete. In this case, we are using the parent dynamic
+          # configuration itself.
+          config-path: .circleci/test.yml
diff --git a/mmocr-dev-1.x/.circleci/docker/Dockerfile b/mmocr-dev-1.x/.circleci/docker/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..d9cf8cc7712d5241975c3b748fb0d01a5545b4fd
--- /dev/null
+++ b/mmocr-dev-1.x/.circleci/docker/Dockerfile
@@ -0,0 +1,11 @@
+ARG PYTORCH="1.8.1"
+ARG CUDA="10.2"
+ARG CUDNN="7"
+
+FROM pytorch/pytorch:${PYTORCH}-cuda${CUDA}-cudnn${CUDNN}-devel
+
+# To fix GPG key error when running apt-get update
+RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
+RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub
+
+RUN apt-get update && apt-get install -y ninja-build libglib2.0-0 libsm6 libxrender-dev libxext6 libgl1-mesa-glx
diff --git a/mmocr-dev-1.x/.circleci/test.yml b/mmocr-dev-1.x/.circleci/test.yml
new file mode 100644
index 0000000000000000000000000000000000000000..c24bebcb50465251f879a0506caf4587f3cc92a6
--- /dev/null
+++ b/mmocr-dev-1.x/.circleci/test.yml
@@ -0,0 +1,196 @@
+version: 2.1
+
+# the default pipeline parameters, which will be updated according to
+# the results of the path-filtering orb
+parameters:
+  lint_only:
+    type: boolean
+    default: true
+
+jobs:
+  lint:
+    docker:
+      - image: cimg/python:3.7.4
+    steps:
+      - checkout
+      - run:
+          name: Install pre-commit hook
+          command: |
+            pip install pre-commit
+            pre-commit install
+      - run:
+          name: Linting
+          command: pre-commit run --all-files
+      - run:
+          name: Check docstring coverage
+          command: |
+            pip install interrogate
+            interrogate -v --ignore-init-method --ignore-module --ignore-nested-functions --ignore-magic --ignore-regex "__repr__" --fail-under 90 mmocr
+  build_cpu:
+    parameters:
+      # The python version must match available image tags in
+      # https://circleci.com/developer/images/image/cimg/python
+      python:
+        type: string
+      torch:
+        type: string
+      torchvision:
+        type: string
+    docker:
+      - image: cimg/python:<< parameters.python >>
+    resource_class: large
+    steps:
+      - checkout
+      - run:
+          name: Install Libraries
+          command: |
+            sudo apt-get update
+            sudo apt-get install -y ninja-build libglib2.0-0 libsm6 libxrender-dev libxext6 libgl1-mesa-glx libjpeg-dev zlib1g-dev libtinfo-dev libncurses5 libgeos-dev
+      - run:
+          name: Configure Python & pip
+          command: |
+            pip install --upgrade pip
+            pip install wheel
+      - run:
+          name: Install PyTorch
+          command: |
+            python -V
+            pip install torch==<< parameters.torch >>+cpu torchvision==<< parameters.torchvision >>+cpu -f https://download.pytorch.org/whl/torch_stable.html
+      - run:
+          name: Install mmocr dependencies
+          command: |
+            pip install git+https://github.com/open-mmlab/mmengine.git@main
+            pip install -U openmim
+            mim install 'mmcv >= 2.0.0rc1'
+            pip install git+https://github.com/open-mmlab/mmdetection.git@dev-3.x
+            pip install -r requirements/tests.txt
+      - run:
+          name: Build and install
+          command: |
+            pip install -e .
+      - run:
+          name: Run unittests
+          command: |
+            coverage run --branch --source mmocr -m pytest tests/
+            coverage xml
+            coverage report -m
+  build_cuda:
+    parameters:
+      torch:
+        type: string
+      cuda:
+        type: enum
+        enum: ["10.1", "10.2", "11.1", "11.7"]
+      cudnn:
+        type: integer
+        default: 7
+    machine:
+      image: ubuntu-2004-cuda-11.4:202110-01
+      # docker_layer_caching: true
+    resource_class: gpu.nvidia.small
+    steps:
+      - checkout
+      - run:
+          # Cloning repos in VM since Docker doesn't have access to the private key
+          name: Clone Repos
+          command: |
+            git clone -b main --depth 1 https://github.com/open-mmlab/mmengine.git /home/circleci/mmengine
+            git clone -b dev-3.x --depth 1 https://github.com/open-mmlab/mmdetection.git /home/circleci/mmdetection
+      - run:
+          name: Build Docker image
+          command: |
+            docker build .circleci/docker -t mmocr:gpu --build-arg PYTORCH=<< parameters.torch >> --build-arg CUDA=<< parameters.cuda >> --build-arg CUDNN=<< parameters.cudnn >>
+            docker run --gpus all -t -d -v /home/circleci/project:/mmocr -v /home/circleci/mmengine:/mmengine -v /home/circleci/mmdetection:/mmdetection -w /mmocr --name mmocr mmocr:gpu
+      - run:
+          name: Install mmocr dependencies
+          command: |
+            docker exec mmocr pip install -e /mmengine
+            docker exec mmocr pip install -U openmim
+            docker exec mmocr mim install 'mmcv >= 2.0.0rc1'
+            docker exec mmocr pip install -e /mmdetection
+            docker exec mmocr pip install -r requirements/tests.txt
+      - run:
+          name: Build and install
+          command: |
+            docker exec mmocr pip install -e .
+      - run:
+          name: Run unittests
+          command: |
+            docker exec mmocr pytest tests/
+
+workflows:
+  pr_stage_lint:
+    when: << pipeline.parameters.lint_only >>
+    jobs:
+      - lint:
+          name: lint
+          filters:
+            branches:
+              ignore:
+                - dev-1.x
+                - 1.x
+                - main
+  pr_stage_test:
+    when:
+      not:
+        << pipeline.parameters.lint_only >>
+    jobs:
+      - lint:
+          name: lint
+          filters:
+            branches:
+              ignore:
+                - dev-1.x
+                - test-1.x
+                - main
+      - build_cpu:
+          name: minimum_version_cpu
+          torch: 1.6.0
+          torchvision: 0.7.0
+          python: "3.7"
+          requires:
+            - lint
+      - build_cpu:
+          name: maximum_version_cpu
+          torch: 2.0.0
+          torchvision: 0.15.1
+          python: 3.9.0
+          requires:
+            - minimum_version_cpu
+      - hold:
+          type: approval
+          requires:
+            - maximum_version_cpu
+      - build_cuda:
+          name: mainstream_version_gpu
+          torch: 1.8.1
+          # Use double quotation mark to explicitly specify its type
+          # as string instead of number
+          cuda: "10.2"
+          requires:
+            - hold
+      - build_cuda:
+          name: mainstream_version_gpu
+          torch: 2.0.0
+          # Use double quotation mark to explicitly specify its type
+          # as string instead of number
+          cuda: "11.7"
+          cudnn: 8
+          requires:
+            - hold
+  merge_stage_test:
+    when:
+      not:
+        << pipeline.parameters.lint_only >>
+    jobs:
+      - build_cuda:
+          name: minimum_version_gpu
+          torch: 1.6.0
+          # Use double quotation mark to explicitly specify its type
+          # as string instead of number
+          cuda: "10.1"
+          filters:
+            branches:
+              only:
+                - dev-1.x
+                - main
diff --git a/mmocr-dev-1.x/.codespellrc b/mmocr-dev-1.x/.codespellrc
new file mode 100644
index 0000000000000000000000000000000000000000..d9a0a76c5862203c2951d0b3703da9c1322417e8
--- /dev/null
+++ b/mmocr-dev-1.x/.codespellrc
@@ -0,0 +1,5 @@
+[codespell]
+skip = *.ipynb
+count =
+quiet-level = 3
+ignore-words-list = convertor,convertors,formating,nin,wan,datas,hist,ned
diff --git a/mmocr-dev-1.x/.coveragerc b/mmocr-dev-1.x/.coveragerc
new file mode 100644
index 0000000000000000000000000000000000000000..a7ee638287be67483ce907295325c53264af4c8c
--- /dev/null
+++ b/mmocr-dev-1.x/.coveragerc
@@ -0,0 +1,3 @@
+[run]
+omit =
+    */__init__.py
diff --git a/mmocr-dev-1.x/.dev_scripts/benchmark_full_models.txt b/mmocr-dev-1.x/.dev_scripts/benchmark_full_models.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5d7d7bf4e36369bdd34ad1c73e99104a37191ab8
--- /dev/null
+++ b/mmocr-dev-1.x/.dev_scripts/benchmark_full_models.txt
@@ -0,0 +1,18 @@
+textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
+textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py
+textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015.py
+textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015.py
+textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015.py
+textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015.py
+textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500.py
+textrecog/abinet/abinet-vision_20e_st-an_mj.py
+textrecog/crnn/crnn_mini-vgg_5e_mj.py
+textrecog/master/master_resnet31_12e_st_mj_sa.py
+textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py
+textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real.py
+textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py
+textrecog/satrn/satrn_shallow-small_5e_st_mj.py
+textrecog/satrn/satrn_shallow-small_5e_st_mj.py
+textrecog/aster/aster_resnet45_6e_st_mj.py
+textrecog/svtr/svtr-small_20e_st_mj.py
diff --git a/mmocr-dev-1.x/.dev_scripts/benchmark_options.py b/mmocr-dev-1.x/.dev_scripts/benchmark_options.py
new file mode 100644
index 0000000000000000000000000000000000000000..e10c7adbccb430f513ae58517a47050444cdecc1
--- /dev/null
+++ b/mmocr-dev-1.x/.dev_scripts/benchmark_options.py
@@ -0,0 +1,7 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+third_part_libs = [
+    'pip install -r ../requirements/albu.txt',
+]
+
+default_floating_range = 0.5
diff --git a/mmocr-dev-1.x/.dev_scripts/benchmark_train_models.txt b/mmocr-dev-1.x/.dev_scripts/benchmark_train_models.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8cba62d0cae75b93cac6b004aff0c860abcfcaaa
--- /dev/null
+++ b/mmocr-dev-1.x/.dev_scripts/benchmark_train_models.txt
@@ -0,0 +1,9 @@
+textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015.py
+textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015.py
+textrecog/abinet/abinet-vision_20e_st-an_mj.py
+textrecog/crnn/crnn_mini-vgg_5e_mj.py
+textrecog/aster/aster_resnet45_6e_st_mj.py
+textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py
+textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py
+textrecog/svtr/svtr-small_20e_st_mj.py
diff --git a/mmocr-dev-1.x/.dev_scripts/covignore.cfg b/mmocr-dev-1.x/.dev_scripts/covignore.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..00ec54b01a343447ab555390112b6d3e9676738c
--- /dev/null
+++ b/mmocr-dev-1.x/.dev_scripts/covignore.cfg
@@ -0,0 +1,18 @@
+# Each line should be the relative path to the root directory
+# of this repo. Support regular expression as well.
+# For example:
+# mmocr/models/textdet/postprocess/utils.py
+# .*/utils.py
+.*/__init__.py
+
+# It will be removed after all models have been refactored
+mmocr/utils/bbox_utils.py
+
+# Major part is covered, however, it's hard to cover model's output.
+mmocr/models/textdet/detectors/mmdet_wrapper.py
+
+# It will be removed after KieVisualizer and TextSpotterVisualizer
+mmocr/visualization/visualize.py
+
+# Add tests for data preparers later
+mmocr/datasets/preparers
diff --git a/mmocr-dev-1.x/.dev_scripts/diff_coverage_test.sh b/mmocr-dev-1.x/.dev_scripts/diff_coverage_test.sh
new file mode 100755
index 0000000000000000000000000000000000000000..588d6dbd4070e314f7fa4c5fda1311b3589221b2
--- /dev/null
+++ b/mmocr-dev-1.x/.dev_scripts/diff_coverage_test.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+
+set -e
+
+readarray -t IGNORED_FILES < $( dirname "$0" )/covignore.cfg
+
+REUSE_COVERAGE_REPORT=${REUSE_COVERAGE_REPORT:-0}
+REPO=${1:-"origin"}
+BRANCH=${2:-"refactor_dev"}
+
+git fetch $REPO $BRANCH
+
+PY_FILES=""
+for FILE_NAME in $(git diff --name-only ${REPO}/${BRANCH}); do
+    # Only test python files in mmocr/ existing in current branch, and not ignored in covignore.cfg
+    if [ ${FILE_NAME: -3} == ".py" ] && [ ${FILE_NAME:0:6} == "mmocr/" ] && [ -f "$FILE_NAME" ]; then
+        IGNORED=false
+        for IGNORED_FILE_NAME in "${IGNORED_FILES[@]}"; do
+            # Skip blank lines
+            if [ -z "$IGNORED_FILE_NAME" ]; then
+                continue
+            fi
+            if [ "${IGNORED_FILE_NAME::1}" != "#" ] && [[ "$FILE_NAME" =~ $IGNORED_FILE_NAME ]]; then
+                echo "Ignoring $FILE_NAME"
+                IGNORED=true
+                break
+            fi
+        done
+        if [ "$IGNORED" = false ]; then
+            PY_FILES="$PY_FILES $FILE_NAME"
+        fi
+    fi
+done
+
+# Only test the coverage when PY_FILES are not empty, otherwise they will test the entire project
+if [ ! -z "${PY_FILES}" ]
+then
+    if [ "$REUSE_COVERAGE_REPORT" == "0" ]; then
+        coverage run --branch --source mmocr -m pytest tests/
+    fi
+    coverage report --fail-under 90 -m $PY_FILES
+    interrogate -v --ignore-init-method --ignore-module --ignore-nested-functions --ignore-magic --ignore-regex "__repr__" --fail-under 95 $PY_FILES
+fi
diff --git a/mmocr-dev-1.x/.github/CODE_OF_CONDUCT.md b/mmocr-dev-1.x/.github/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000000000000000000000000000000000000..92afad1c5ab5d5781115dee45c131d3751d3cd31
--- /dev/null
+++ b/mmocr-dev-1.x/.github/CODE_OF_CONDUCT.md
@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+- Using welcoming and inclusive language
+- Being respectful of differing viewpoints and experiences
+- Gracefully accepting constructive criticism
+- Focusing on what is best for the community
+- Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+- The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+- Trolling, insulting/derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+- Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at chenkaidev@gmail.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
+
+[homepage]: https://www.contributor-covenant.org
diff --git a/mmocr-dev-1.x/.github/CONTRIBUTING.md b/mmocr-dev-1.x/.github/CONTRIBUTING.md
new file mode 100644
index 0000000000000000000000000000000000000000..7c7d23f22866eae2c12844e365c0f8a03c0e501b
--- /dev/null
+++ b/mmocr-dev-1.x/.github/CONTRIBUTING.md
@@ -0,0 +1 @@
+We appreciate all contributions to improve MMOCR. Please read [Contribution Guide](/docs/en/notes/contribution_guide.md) for step-by-step instructions to make a contribution to MMOCR, and [CONTRIBUTING.md](https://github.com/open-mmlab/mmcv/blob/master/CONTRIBUTING.md) in MMCV for more details about the contributing guideline.
diff --git a/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/1-bug-report.yml b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/1-bug-report.yml
new file mode 100644
index 0000000000000000000000000000000000000000..6faa7b762abbec60f3444db838dcdfc072ba5f25
--- /dev/null
+++ b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/1-bug-report.yml
@@ -0,0 +1,121 @@
+name: "🐞 Bug report"
+description: "Create a report to help us reproduce and fix the bug"
+labels: kind/bug
+title: "[Bug] "
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        ## Note
+        For general usage questions or idea discussions, please post it to our [**Forum**](https://github.com/open-mmlab/mmocr/discussions)
+        If this issue is about installing MMCV, please file an issue at [MMCV](https://github.com/open-mmlab/mmcv/issues/new/choose).
+        If it's anything about model deployment, please raise it to [MMDeploy](https://github.com/open-mmlab/mmdeploy)
+
+        Please fill in as **much** of the following form as you're able to. **The clearer the description, the shorter it will take to solve it.**
+
+  - type: checkboxes
+    attributes:
+      label: Prerequisite
+      description: Please check the following items before creating a new issue.
+      options:
+      - label: I have searched [Issues](https://github.com/open-mmlab/mmocr/issues) and [Discussions](https://github.com/open-mmlab/mmocr/discussions) but cannot get the expected help.
+        required: true
+      # - label: I have read the [FAQ documentation](https://mmocr.readthedocs.io/en/1.x/notes/4_faq.html) but cannot get the expected help.
+      #   required: true
+      - label: The bug has not been fixed in the [latest version (0.x)](https://github.com/open-mmlab/mmocr) or [latest version (1.x)](https://github.com/open-mmlab/mmocr/tree/dev-1.x).
+        required: true
+
+  - type: dropdown
+    id: task
+    attributes:
+      label: Task
+      description: The problem arises when
+      options:
+        - I'm using the official example scripts/configs for the officially supported tasks/models/datasets.
+        - I have modified the scripts/configs, or I'm working on my own tasks/models/datasets.
+    validations:
+      required: true
+
+  - type: dropdown
+    id: branch
+    attributes:
+      label: Branch
+      description: The problem arises when I'm working on
+      options:
+        - main branch https://github.com/open-mmlab/mmocr
+        - 1.x branch https://github.com/open-mmlab/mmocr/tree/dev-1.x
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Environment
+      description: |
+        Please run `python mmocr/utils/collect_env.py` to collect necessary environment information and copy-paste it here.
+        You may add additional information that may be helpful for locating the problem, such as
+          - How you installed PyTorch \[e.g., pip, conda, source\]
+          - Other environment variables that may be related (such as `$PATH`, `$LD_LIBRARY_PATH`, `$PYTHONPATH`, etc.)
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Reproduces the problem - code sample
+      description: |
+        Please provide a code sample that reproduces the problem you ran into. It can be a Colab link or just a code snippet.
+      placeholder: |
+        ```python
+        # Sample code to reproduce the problem
+        ```
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Reproduces the problem - command or script
+      description: |
+        What command or script did you run?
+      placeholder: |
+        ```shell
+        The command or script you run.
+        ```
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Reproduces the problem - error message
+      description: |
+        Please provide the error message or logs you got, with the full traceback.
+
+        Tip: You can attach images or log files by dragging them into the text area..
+      placeholder: |
+        ```
+        The error message or logs you got, with the full traceback.
+        ```
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Additional information
+      description: |
+        Tell us anything else you think we should know.
+
+        Tip: You can attach images or log files by dragging them into the text area.
+      placeholder: |
+        1. What's your expected result?
+        2. What dataset did you use?
+        3. What do you think might be the reason?
+
+  - type: markdown
+    attributes:
+      value: |
+        ## Acknowledgement
+        Thanks for taking the time to fill out this report.
+
+        If you have already identified the reason, we strongly appreciate you creating a new PR to fix it [**Here**](https://github.com/open-mmlab/mmocr/pulls)!
+        Please refer to [**Contribution Guide**](https://mmocr.readthedocs.io/en/dev-1.x/notes/contribution_guide.html) for contributing.
+
+        Welcome to join our [**Community**](https://mmocr.readthedocs.io/en/latest/contact.html) to discuss together. 👬
diff --git a/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/2-feature_request.yml b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/2-feature_request.yml
new file mode 100644
index 0000000000000000000000000000000000000000..56dad87138c0285a155fb7366f27ab7da869ed9b
--- /dev/null
+++ b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/2-feature_request.yml
@@ -0,0 +1,39 @@
+name: 🚀 Feature request
+description: Suggest an idea for this project
+labels: [feature-request]
+title: "[Feature] "
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        ## Note
+        For general usage questions or idea discussions, please post it to our [**Forum**](https://github.com/open-mmlab/mmocr/discussions)
+
+        Please fill in as **much** of the following form as you're able to. **The clearer the description, the shorter it will take to solve it.**
+
+  - type: textarea
+    attributes:
+      label: What is the feature?
+      description: Tell us more about the feature and how this feature can help.
+      placeholder: |
+        E.g., It is inconvenient when \[....\].
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Any other context?
+      description: |
+        Have you considered any alternative solutions or features? If so, what are they? Also, feel free to add any other context or screenshots about the feature request here.
+
+  - type: markdown
+    attributes:
+      value: |
+        ## Acknowledgement
+        Thanks for taking the time to fill out this report.
+
+        We strongly appreciate you creating a new PR to implement it [**Here**](https://github.com/open-mmlab/mmocr/pulls)!
+        Please refer to [**Contribution Guide**](https://mmocr.readthedocs.io/en/dev-1.x/notes/contribution_guide.html) for contributing.
+
+        Welcome to join our [**Community**](https://mmocr.readthedocs.io/en/latest/contact.html) to discuss together. 👬
diff --git a/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/3-new-model.yml b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/3-new-model.yml
new file mode 100644
index 0000000000000000000000000000000000000000..ea5491cca4ebb4392bb3413a547d43ea14c2f021
--- /dev/null
+++ b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/3-new-model.yml
@@ -0,0 +1,51 @@
+name: "\U0001F31F New model/dataset/scheduler addition"
+description: Submit a proposal/request to implement a new model / dataset / scheduler
+labels: [ "feature-request" ]
+title: "[New Models] "
+
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        ## Note
+        For general usage questions or idea discussions, please post it to our [**Forum**](https://github.com/open-mmlab/mmocr/discussions)
+
+        Please fill in as **much** of the following form as you're able to. **The clearer the description, the shorter it will take to solve it.**
+
+  - type: textarea
+    id: description-request
+    validations:
+      required: true
+    attributes:
+      label: Model/Dataset/Scheduler description
+      description: |
+        Put any and all important information relative to the model/dataset/scheduler
+
+  - type: checkboxes
+    attributes:
+      label: Open source status
+      description: |
+          Please provide the open-source status, which would be very helpful
+      options:
+        - label: "The model implementation is available"
+        - label: "The model weights are available."
+
+  - type: textarea
+    id: additional-info
+    attributes:
+      label: Provide useful links for the implementation
+      description: |
+        Please provide information regarding the implementation, the weights, and the authors.
+        Please mention the authors by @gh-username if you're aware of their usernames.
+
+  - type: markdown
+    attributes:
+      value: |
+        ## Acknowledgement
+        Thanks for taking the time to fill out this report.
+
+        We strongly appreciate you creating a new PR to implement it [**Here**](https://github.com/open-mmlab/mmocr/pulls)!
+        Please refer to [**Contribution Guide**](https://mmocr.readthedocs.io/en/dev-1.x/notes/contribution_guide.html) for contributing.
+
+        Welcome to join our [**Community**](https://mmocr.readthedocs.io/en/latest/contact.html) to discuss together. 👬
diff --git a/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/4-documentation.yml b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/4-documentation.yml
new file mode 100644
index 0000000000000000000000000000000000000000..f19e070f56fda1fed144a1241ba3827c84bd4f18
--- /dev/null
+++ b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/4-documentation.yml
@@ -0,0 +1,48 @@
+name: 📚 Documentation
+description: Report an issue related to the documentation.
+labels: "docs"
+title: "[Docs] "
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        ## Note
+        For general usage questions or idea discussions, please post it to our [**Forum**](https://github.com/open-mmlab/mmocr/discussions)
+        Please fill in as **much** of the following form as you're able to. **The clearer the description, the shorter it will take to solve it.**
+
+  - type: dropdown
+    id: branch
+    attributes:
+      label: Branch
+      description: This issue is related to the
+      options:
+        - master branch  https://mmocr.readthedocs.io/en/latest/
+        - 1.x branch https://mmocr.readthedocs.io/en/dev-1.x/
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: 📚 The doc issue
+      description: >
+        A clear and concise description the issue.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Suggest a potential alternative/fix
+      description: >
+        Tell us how we could improve the documentation in this regard.
+
+  - type: markdown
+    attributes:
+      value: |
+        ## Acknowledgement
+        Thanks for taking the time to fill out this report.
+
+        If you have already identified the reason, we strongly appreciate you creating a new PR to fix it [**here**](https://github.com/open-mmlab/mmocr/pulls)!
+        Please refer to [**Contribution Guide**](https://mmocr.readthedocs.io/en/dev-1.x/notes/contribution_guide.html) for contributing.
+
+        Welcome to join our [**Community**](https://mmocr.readthedocs.io/en/latest/contact.html) to discuss together. 👬
diff --git a/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/config.yml b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/config.yml
new file mode 100644
index 0000000000000000000000000000000000000000..fca6615a0531179134ef7bcd94a37a10fc0718c2
--- /dev/null
+++ b/mmocr-dev-1.x/.github/ISSUE_TEMPLATE/config.yml
@@ -0,0 +1,12 @@
+blank_issues_enabled: false
+
+contact_links:
+  - name: ❔ FAQ
+    url: https://mmocr.readthedocs.io/en/dev-1.x/get_started/faq.html
+    about: Is your question frequently asked?
+  - name: 💬 Forum
+    url: https://github.com/open-mmlab/mmocr/discussions
+    about: Ask general usage questions and discuss with other MMOCR community members
+  - name: 🌐 Explore OpenMMLab
+    url: https://openmmlab.com/
+    about: Get know more about OpenMMLab
diff --git a/mmocr-dev-1.x/.github/pull_request_template.md b/mmocr-dev-1.x/.github/pull_request_template.md
new file mode 100644
index 0000000000000000000000000000000000000000..e010f972caa5699d8cfcac64a859b6eb7d1d7749
--- /dev/null
+++ b/mmocr-dev-1.x/.github/pull_request_template.md
@@ -0,0 +1,33 @@
+Thanks for your contribution and we appreciate it a lot. The following instructions would make your pull request more healthy and more easily get feedback. If you do not understand some items, don't worry, just make the pull request and seek help from maintainers.
+
+## Motivation
+
+Please describe the motivation of this PR and the goal you want to achieve through this PR.
+
+## Modification
+
+Please briefly describe what modification is made in this PR.
+
+## BC-breaking (Optional)
+
+Does the modification introduce changes that break the backward-compatibility of the downstream repositories?
+If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.
+
+## Use cases (Optional)
+
+If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.
+
+## Checklist
+
+**Before PR**:
+
+- [ ] I have read and followed the workflow indicated in the [CONTRIBUTING.md](https://github.com/open-mmlab/mmocr/blob/main/.github/CONTRIBUTING.md) to create this PR.
+- [ ] Pre-commit or linting tools indicated in [CONTRIBUTING.md](https://github.com/open-mmlab/mmocr/blob/main/.github/CONTRIBUTING.md) are used to fix the potential lint issues.
+- [ ] Bug fixes are covered by unit tests, the case that causes the bug should be added in the unit tests.
+- [ ] New functionalities are covered by complete unit tests. If not, please add more unit test to ensure the correctness.
+- [ ] The documentation has been modified accordingly, including docstring or example tutorials.
+
+**After PR**:
+
+- [ ] If the modification has potential influence on downstream or other related projects, this PR should be tested with some of those projects.
+- [ ] CLA has been signed and all committers have signed the CLA in this PR.
diff --git a/mmocr-dev-1.x/.github/workflows/lint.yml b/mmocr-dev-1.x/.github/workflows/lint.yml
new file mode 100644
index 0000000000000000000000000000000000000000..e9cdba667ba986019473046d13315b2755bd5de6
--- /dev/null
+++ b/mmocr-dev-1.x/.github/workflows/lint.yml
@@ -0,0 +1,27 @@
+name: lint
+
+on: [push, pull_request]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+      - name: Install pre-commit hook
+        run: |
+          pip install pre-commit
+          pre-commit install
+      - name: Linting
+        run: pre-commit run --all-files
+      - name: Check docstring coverage
+        run: |
+          pip install interrogate
+          interrogate -v --ignore-init-method --ignore-module --ignore-nested-functions --ignore-regex "__repr__" --fail-under 90 mmocr
diff --git a/mmocr-dev-1.x/.github/workflows/merge_stage_test.yml b/mmocr-dev-1.x/.github/workflows/merge_stage_test.yml
new file mode 100644
index 0000000000000000000000000000000000000000..856ede8335a691ccb5585ecae04728fcd1e958bb
--- /dev/null
+++ b/mmocr-dev-1.x/.github/workflows/merge_stage_test.yml
@@ -0,0 +1,160 @@
+name: merge_stage_test
+
+on:
+  push:
+    paths-ignore:
+      - 'README.md'
+      - 'README_zh-CN.md'
+      - 'docs/**'
+      - 'demo/**'
+      - '.dev_scripts/**'
+      - '.circleci/**'
+      - 'projects/**'
+    branches:
+      - dev-1.x
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build_cpu_py:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        python-version: [3.8, 3.9]
+        torch: [1.8.1]
+        include:
+          - torch: 1.8.1
+            torchvision: 0.9.1
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Upgrade pip
+        run: pip install pip --upgrade
+      - name: Install PyTorch
+        run: pip install torch==${{matrix.torch}}+cpu torchvision==${{matrix.torchvision}}+cpu -f https://download.pytorch.org/whl/cpu/torch_stable.html
+      - name: Install MMEngine
+        run: pip install git+https://github.com/open-mmlab/mmengine.git@main
+      - name: Install MMCV
+        run: |
+          pip install -U openmim
+          mim install 'mmcv >= 2.0.0rc1'
+      - name: Install MMDet
+        run: pip install git+https://github.com/open-mmlab/mmdetection.git@dev-3.x
+      - name: Install other dependencies
+        run: pip install -r requirements/tests.txt
+      - name: Build and install
+        run: rm -rf .eggs && pip install -e .
+      - name: Run unittests and generate coverage report
+        run: |
+          coverage run --branch --source mmocr -m pytest tests/
+          coverage xml
+          coverage report -m
+
+  build_cpu_pt:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        python-version: [3.7]
+        torch: [1.6.0, 1.7.1, 1.8.1, 1.9.1, 1.10.1, 1.11.0, 1.12.1, 1.13.0]
+        include:
+          - torch: 1.6.0
+            torchvision: 0.7.0
+          - torch: 1.7.1
+            torchvision: 0.8.2
+          - torch: 1.8.1
+            torchvision: 0.9.1
+          - torch: 1.9.1
+            torchvision: 0.10.1
+          - torch: 1.10.1
+            torchvision: 0.11.2
+          - torch: 1.11.0
+            torchvision: 0.12.0
+          - torch: 1.12.1
+            torchvision: 0.13.1
+          - torch: 1.13.0
+            torchvision: 0.14.0
+          - torch: 2.0.0
+            torchvision: 0.15.1
+            python-version: 3.8
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Upgrade pip
+        run: pip install pip --upgrade
+      - name: Install PyTorch
+        run: pip install torch==${{matrix.torch}}+cpu torchvision==${{matrix.torchvision}}+cpu -f https://download.pytorch.org/whl/cpu/torch_stable.html
+      - name: Install MMEngine
+        run: pip install git+https://github.com/open-mmlab/mmengine.git@main
+      - name: Install MMCV
+        run: |
+          pip install -U openmim
+          mim install 'mmcv >= 2.0.0rc1'
+      - name: Install MMDet
+        run: pip install git+https://github.com/open-mmlab/mmdetection.git@dev-3.x
+      - name: Install other dependencies
+        run: pip install -r requirements/tests.txt
+      - name: Build and install
+        run: rm -rf .eggs && pip install -e .
+      - name: Run unittests and generate coverage report
+        run: |
+          coverage run --branch --source mmocr -m pytest tests/
+          coverage xml
+          coverage report -m
+      # Only upload coverage report for python3.7 && pytorch1.8.1 cpu
+      - name: Upload coverage to Codecov
+        if: ${{matrix.torch == '1.8.1' && matrix.python-version == '3.7'}}
+        uses: codecov/codecov-action@v1.0.14
+        with:
+          file: ./coverage.xml
+          flags: unittests
+          env_vars: OS,PYTHON
+          name: codecov-umbrella
+          fail_ci_if_error: false
+
+
+  build_windows:
+    runs-on: windows-2022
+    strategy:
+      matrix:
+        python: [3.7]
+        platform: [cpu, cu111]
+        torch: [1.8.1]
+        torchvision: [0.9.1]
+        include:
+          - python-version: 3.8
+            platform: cu117
+            torch: 2.0.0
+            torchvision: 0.15.1
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Upgrade pip
+        run: python -m pip install --upgrade pip
+      - name: Install lmdb
+        run: pip install lmdb
+      - name: Install PyTorch
+        run: pip install torch==${{matrix.torch}}+${{matrix.platform}} torchvision==${{matrix.torchvision}}+${{matrix.platform}} -f https://download.pytorch.org/whl/${{matrix.platform}}/torch_stable.html
+      - name: Install mmocr dependencies
+        run: |
+          pip install git+https://github.com/open-mmlab/mmengine.git@main
+          pip install -U openmim
+          mim install 'mmcv >= 2.0.0rc1'
+          pip install git+https://github.com/open-mmlab/mmdetection.git@dev-3.x
+          pip install -r requirements/tests.txt
+      - name: Build and install
+        run: |
+          pip install -e .
+      - name: Run unittests and generate coverage report
+        run: |
+          pytest tests/
diff --git a/mmocr-dev-1.x/.github/workflows/pr_stage_test.yml b/mmocr-dev-1.x/.github/workflows/pr_stage_test.yml
new file mode 100644
index 0000000000000000000000000000000000000000..e9344e5a056f58db0e3c5e0bfd588078f2817613
--- /dev/null
+++ b/mmocr-dev-1.x/.github/workflows/pr_stage_test.yml
@@ -0,0 +1,102 @@
+name: pr_stage_test
+
+on:
+  pull_request:
+    paths-ignore:
+      - 'README.md'
+      - 'README_zh-CN.md'
+      - 'docs/**'
+      - 'demo/**'
+      - '.dev_scripts/**'
+      - '.circleci/**'
+      - 'projects/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build_cpu:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        python-version: [3.7]
+        include:
+          - torch: 1.8.1
+            torchvision: 0.9.1
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Upgrade pip
+        run: pip install pip --upgrade
+      - name: Install PyTorch
+        run: pip install torch==${{matrix.torch}}+cpu torchvision==${{matrix.torchvision}}+cpu -f https://download.pytorch.org/whl/cpu/torch_stable.html
+      - name: Install MMEngine
+        run: pip install git+https://github.com/open-mmlab/mmengine.git@main
+      - name: Install MMCV
+        run: |
+          pip install -U openmim
+          mim install 'mmcv >= 2.0.0rc1'
+      - name: Install MMDet
+        run: pip install git+https://github.com/open-mmlab/mmdetection.git@dev-3.x
+      - name: Install other dependencies
+        run: pip install -r requirements/tests.txt
+      - name: Build and install
+        run: rm -rf .eggs && pip install -e .
+      - name: Run unittests and generate coverage report
+        run: |
+          coverage run --branch --source mmocr -m pytest tests/
+          coverage xml
+          coverage report -m
+      # Upload coverage report for python3.7 && pytorch1.8.1 cpu
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v1.0.14
+        with:
+          file: ./coverage.xml
+          flags: unittests
+          env_vars: OS,PYTHON
+          name: codecov-umbrella
+          fail_ci_if_error: false
+
+
+  build_windows:
+    runs-on: windows-2022
+    strategy:
+      matrix:
+        python: [3.7]
+        platform: [cpu, cu111]
+        torch: [1.8.1]
+        torchvision: [0.9.1]
+        include:
+          - python-version: 3.8
+            platform: cu117
+            torch: 2.0.0
+            torchvision: 0.15.1
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Upgrade pip
+        run: python -m pip install --upgrade pip
+      - name: Install lmdb
+        run: pip install lmdb
+      - name: Install PyTorch
+        run: pip install torch==${{matrix.torch}}+${{matrix.platform}} torchvision==${{matrix.torchvision}}+${{matrix.platform}} -f https://download.pytorch.org/whl/${{matrix.platform}}/torch_stable.html
+      - name: Install mmocr dependencies
+        run: |
+          pip install git+https://github.com/open-mmlab/mmengine.git@main
+          pip install -U openmim
+          mim install 'mmcv >= 2.0.0rc1'
+          pip install git+https://github.com/open-mmlab/mmdetection.git@dev-3.x
+          pip install -r requirements/tests.txt
+      - name: Build and install
+        run: |
+          pip install -e .
+      - name: Run unittests and generate coverage report
+        run: |
+          pytest tests/
diff --git a/mmocr-dev-1.x/.github/workflows/publish-to-pypi.yml b/mmocr-dev-1.x/.github/workflows/publish-to-pypi.yml
new file mode 100644
index 0000000000000000000000000000000000000000..fc8e5f4fa230670134149e69cf301723a7176de9
--- /dev/null
+++ b/mmocr-dev-1.x/.github/workflows/publish-to-pypi.yml
@@ -0,0 +1,26 @@
+name: deploy
+
+on: push
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-n-publish:
+    runs-on: ubuntu-latest
+    if: startsWith(github.event.ref, 'refs/tags')
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.7
+      - name: Build MMOCR
+        run: |
+          pip install wheel
+          python setup.py sdist bdist_wheel
+      - name: Publish distribution to PyPI
+        run: |
+          pip install twine
+          twine upload dist/* -u __token__ -p ${{ secrets.pypi_password }}
diff --git a/mmocr-dev-1.x/.github/workflows/test_mim.yml b/mmocr-dev-1.x/.github/workflows/test_mim.yml
new file mode 100644
index 0000000000000000000000000000000000000000..2c1c170d6375a7bedc761404f228db80030cec44
--- /dev/null
+++ b/mmocr-dev-1.x/.github/workflows/test_mim.yml
@@ -0,0 +1,44 @@
+name: test-mim
+
+on:
+  push:
+    paths:
+      - 'model-index.yml'
+      - 'configs/**'
+
+  pull_request:
+    paths:
+      - 'model-index.yml'
+      - 'configs/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build_cpu:
+    runs-on: ubuntu-18.04
+    strategy:
+      matrix:
+        python-version: [3.7]
+        torch: [1.8.0]
+        include:
+          - torch: 1.8.0
+            torch_version: torch1.8
+            torchvision: 0.9.0
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Upgrade pip
+        run: pip install pip --upgrade
+      - name: Install PyTorch
+        run: pip install torch==${{matrix.torch}}+cpu torchvision==${{matrix.torchvision}}+cpu -f https://download.pytorch.org/whl/torch_stable.html
+      - name: Install openmim
+        run: pip install openmim
+      - name: Build and install
+        run: rm -rf .eggs && mim install -e .
+      - name: test commands of mim
+        run: mim search mmocr
diff --git a/mmocr-dev-1.x/.gitignore b/mmocr-dev-1.x/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..54567836d29f65c1630d89d44d0c48af9718c8f3
--- /dev/null
+++ b/mmocr-dev-1.x/.gitignore
@@ -0,0 +1,146 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+*.ipynb
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/en/_build/
+docs/zh_cn/_build/
+docs/*/api/generated/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+
+# cython generated cpp
+!data/dict
+/data
+.vscode
+.idea
+
+# custom
+*.pkl
+*.pkl.json
+*.log.json
+work_dirs/
+exps/
+*~
+show_dir/
+
+# Pytorch
+*.pth
+
+# demo
+!tests/data
+tests/results
+
+#temp files
+.DS_Store
+
+checkpoints
+
+htmlcov
+*.swp
+log.txt
+workspace.code-workspace
+results
+mmocr/core/font.TTF
+mmocr/.mim
+workdirs/
+.history/
+.dev/
+data/
diff --git a/mmocr-dev-1.x/.owners.yml b/mmocr-dev-1.x/.owners.yml
new file mode 100644
index 0000000000000000000000000000000000000000..c21ef0dc20db0d2994136a04637844f726a82162
--- /dev/null
+++ b/mmocr-dev-1.x/.owners.yml
@@ -0,0 +1,9 @@
+assign:
+  strategy:
+    random
+    # daily-shift-based
+  scedule:
+    '*/1 * * * *'
+  assignees:
+    - gaotongxiao
+    - Harold-lkk
diff --git a/mmocr-dev-1.x/.pre-commit-config.yaml b/mmocr-dev-1.x/.pre-commit-config.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..bf71f4f9b198b3d81c4bfe335de3fc3a7df35ca0
--- /dev/null
+++ b/mmocr-dev-1.x/.pre-commit-config.yaml
@@ -0,0 +1,63 @@
+exclude: ^tests/data/
+repos:
+  - repo: https://github.com/PyCQA/flake8
+    rev: 5.0.4
+    hooks:
+      - id: flake8
+  - repo: https://github.com/zhouzaida/isort
+    rev: 5.12.1
+    hooks:
+      - id: isort
+  - repo: https://github.com/pre-commit/mirrors-yapf
+    rev: v0.32.0
+    hooks:
+      - id: yapf
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.2.1
+    hooks:
+      - id: codespell
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.3.0
+    hooks:
+      - id: trailing-whitespace
+        exclude: |
+            (?x)^(
+              dicts/|
+              projects/.*?/dicts/
+            )
+      - id: check-yaml
+      - id: end-of-file-fixer
+        exclude: |
+            (?x)^(
+              dicts/|
+              projects/.*?/dicts/
+            )
+      - id: requirements-txt-fixer
+      - id: double-quote-string-fixer
+      - id: check-merge-conflict
+      - id: fix-encoding-pragma
+        args: ["--remove"]
+      - id: mixed-line-ending
+        args: ["--fix=lf"]
+      - id: mixed-line-ending
+        args: ["--fix=lf"]
+  - repo: https://github.com/executablebooks/mdformat
+    rev: 0.7.9
+    hooks:
+      - id: mdformat
+        args: ["--number", "--table-width", "200"]
+        additional_dependencies:
+          - mdformat-openmmlab
+          - mdformat_frontmatter
+          - linkify-it-py
+  - repo: https://github.com/myint/docformatter
+    rev: v1.3.1
+    hooks:
+      - id: docformatter
+        args: ["--in-place", "--wrap-descriptions", "79"]
+  - repo: https://github.com/open-mmlab/pre-commit-hooks
+    rev: v0.2.0  # Use the ref you want to point at
+    hooks:
+      - id: check-algo-readme
+      - id: check-copyright
+        args: ["mmocr", "tests", "tools"]  # these directories will be checked
diff --git a/mmocr-dev-1.x/.pylintrc b/mmocr-dev-1.x/.pylintrc
new file mode 100644
index 0000000000000000000000000000000000000000..d7a39be85d13c69aea978374a5edf921a5d4cc39
--- /dev/null
+++ b/mmocr-dev-1.x/.pylintrc
@@ -0,0 +1,621 @@
+[MASTER]
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code.
+extension-pkg-whitelist=
+
+# Specify a score threshold to be exceeded before program exits with error.
+fail-under=10.0
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=CVS,configs
+
+# Add files or directories matching the regex patterns to the blacklist. The
+# regex matches against base names, not paths.
+ignore-patterns=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
+# number of processors available to use.
+jobs=1
+
+# Control the amount of potential inferred values when inferring a single
+# object. This can help the performance when dealing with large functions or
+# complex, nested conditions.
+limit-inference-results=100
+
+# List of plugins (as comma separated values of python module names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# When enabled, pylint would attempt to guess common misconfiguration and emit
+# user-friendly hints instead of false-positive error messages.
+suggestion-mode=yes
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
+confidence=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once). You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use "--disable=all --enable=classes
+# --disable=W".
+disable=print-statement,
+        parameter-unpacking,
+        unpacking-in-except,
+        old-raise-syntax,
+        backtick,
+        long-suffix,
+        old-ne-operator,
+        old-octal-literal,
+        import-star-module-level,
+        non-ascii-bytes-literal,
+        raw-checker-failed,
+        bad-inline-option,
+        locally-disabled,
+        file-ignored,
+        suppressed-message,
+        useless-suppression,
+        deprecated-pragma,
+        use-symbolic-message-instead,
+        apply-builtin,
+        basestring-builtin,
+        buffer-builtin,
+        cmp-builtin,
+        coerce-builtin,
+        execfile-builtin,
+        file-builtin,
+        long-builtin,
+        raw_input-builtin,
+        reduce-builtin,
+        standarderror-builtin,
+        unicode-builtin,
+        xrange-builtin,
+        coerce-method,
+        delslice-method,
+        getslice-method,
+        setslice-method,
+        no-absolute-import,
+        old-division,
+        dict-iter-method,
+        dict-view-method,
+        next-method-called,
+        metaclass-assignment,
+        indexing-exception,
+        raising-string,
+        reload-builtin,
+        oct-method,
+        hex-method,
+        nonzero-method,
+        cmp-method,
+        input-builtin,
+        round-builtin,
+        intern-builtin,
+        unichr-builtin,
+        map-builtin-not-iterating,
+        zip-builtin-not-iterating,
+        range-builtin-not-iterating,
+        filter-builtin-not-iterating,
+        using-cmp-argument,
+        eq-without-hash,
+        div-method,
+        idiv-method,
+        rdiv-method,
+        exception-message-attribute,
+        invalid-str-codec,
+        sys-max-int,
+        bad-python3-import,
+        deprecated-string-function,
+        deprecated-str-translate-call,
+        deprecated-itertools-function,
+        deprecated-types-field,
+        next-method-defined,
+        dict-items-not-iterating,
+        dict-keys-not-iterating,
+        dict-values-not-iterating,
+        deprecated-operator-function,
+        deprecated-urllib-function,
+        xreadlines-attribute,
+        deprecated-sys-function,
+        exception-escape,
+        comprehension-escape,
+        no-member,
+        invalid-name,
+        too-many-branches,
+        wrong-import-order,
+        too-many-arguments,
+        missing-function-docstring,
+        missing-module-docstring,
+        too-many-locals,
+        too-few-public-methods,
+        abstract-method,
+        broad-except,
+        too-many-nested-blocks,
+        too-many-instance-attributes,
+        missing-class-docstring,
+        duplicate-code,
+        not-callable,
+        protected-access,
+        dangerous-default-value,
+        no-name-in-module,
+        logging-fstring-interpolation,
+        super-init-not-called,
+        redefined-builtin,
+        attribute-defined-outside-init,
+        arguments-differ,
+        cyclic-import,
+        bad-super-call,
+        too-many-statements
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once). See also the "--disable" option for examples.
+enable=c-extension-no-member
+
+
+[REPORTS]
+
+# Python expression which should return a score less than or equal to 10. You
+# have access to the variables 'error', 'warning', 'refactor', and 'convention'
+# which contain the number of messages in each category, as well as 'statement'
+# which is the total number of statements analyzed. This score is used by the
+# global evaluation report (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details.
+#msg-template=
+
+# Set the output format. Available formats are text, parseable, colorized, json
+# and msvs (visual studio). You can also give a reporter class, e.g.
+# mypackage.mymodule.MyReporterClass.
+output-format=text
+
+# Tells whether to display a full report or only the messages.
+reports=no
+
+# Activate the evaluation score.
+score=yes
+
+
+[REFACTORING]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+# Complete name of functions that never returns. When checking for
+# inconsistent-return-statements if a never returning function is called then
+# it will be considered as an explicit return statement and no message will be
+# printed.
+never-returning-functions=sys.exit
+
+
+[TYPECHECK]
+
+# List of decorators that produce context managers, such as
+# contextlib.contextmanager. Add to this list to register other decorators that
+# produce valid context managers.
+contextmanager-decorators=contextlib.contextmanager
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# Tells whether to warn about missing members when the owner of the attribute
+# is inferred to be None.
+ignore-none=yes
+
+# This flag controls whether pylint should warn about no-member and similar
+# checks whenever an opaque object is returned when inferring. The inference
+# can return multiple potential results while evaluating a Python object, but
+# some branches might not be evaluated, which results in partial inference. In
+# that case, it might be useful to still emit no-member and other checks for
+# the rest of the inferred objects.
+ignore-on-opaque-inference=yes
+
+# List of class names for which member attributes should not be checked (useful
+# for classes with dynamically set attributes). This supports the use of
+# qualified names.
+ignored-classes=optparse.Values,thread._local,_thread._local
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis). It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# Show a hint with possible names when a member name was not found. The aspect
+# of finding the hint is based on edit distance.
+missing-member-hint=yes
+
+# The minimum edit distance a name should have in order to be considered a
+# similar match for a missing member name.
+missing-member-hint-distance=1
+
+# The total number of similar names that should be taken in consideration when
+# showing a hint for a missing member.
+missing-member-max-choices=1
+
+# List of decorators that change the signature of a decorated function.
+signature-mutators=
+
+
+[SPELLING]
+
+# Limits count of emitted suggestions for spelling mistakes.
+max-spelling-suggestions=4
+
+# Spelling dictionary name. Available dictionaries: none. To make it work,
+# install the python-enchant package.
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains the private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to the private dictionary (see the
+# --spelling-private-dict-file option) instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[LOGGING]
+
+# The type of string formatting that logging methods do. `old` means using %
+# formatting, `new` is for `{}` formatting.
+logging-format-style=old
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format.
+logging-modules=logging
+
+
+[VARIABLES]
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid defining new builtins when possible.
+additional-builtins=
+
+# Tells whether unused global variables should be treated as a violation.
+allow-global-unused-variables=yes
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,
+          _cb
+
+# A regular expression matching the name of dummy variables (i.e. expected to
+# not be used).
+dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore.
+ignored-argument-names=_.*|^ignored_|^unused_
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# List of qualified module names which can have objects that can redefine
+# builtins.
+redefining-builtins-modules=six.moves,past.builtins,future.builtins,builtins,io
+
+
+[FORMAT]
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Number of spaces of indent required inside a hanging or continued line.
+indent-after-paren=4
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Maximum number of characters on a single line.
+max-line-length=100
+
+# Maximum number of lines in a module.
+max-module-lines=1000
+
+# Allow the body of a class to be on the same line as the declaration if body
+# contains single statement.
+single-line-class-stmt=no
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+
+[STRING]
+
+# This flag controls whether inconsistent-quotes generates a warning when the
+# character used as a quote delimiter is used inconsistently within a module.
+check-quote-consistency=no
+
+# This flag controls whether the implicit-str-concat should generate a warning
+# on implicit string concatenation in sequences defined over several lines.
+check-str-concat-over-line-jumps=no
+
+
+[SIMILARITIES]
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,
+      XXX,
+      TODO
+
+# Regular expression of note tags to take in consideration.
+#notes-rgx=
+
+
+[BASIC]
+
+# Naming style matching correct argument names.
+argument-naming-style=snake_case
+
+# Regular expression matching correct argument names. Overrides argument-
+# naming-style.
+#argument-rgx=
+
+# Naming style matching correct attribute names.
+attr-naming-style=snake_case
+
+# Regular expression matching correct attribute names. Overrides attr-naming-
+# style.
+#attr-rgx=
+
+# Bad variable names which should always be refused, separated by a comma.
+bad-names=foo,
+          bar,
+          baz,
+          toto,
+          tutu,
+          tata
+
+# Bad variable names regexes, separated by a comma. If names match any regex,
+# they will always be refused
+bad-names-rgxs=
+
+# Naming style matching correct class attribute names.
+class-attribute-naming-style=any
+
+# Regular expression matching correct class attribute names. Overrides class-
+# attribute-naming-style.
+#class-attribute-rgx=
+
+# Naming style matching correct class names.
+class-naming-style=PascalCase
+
+# Regular expression matching correct class names. Overrides class-naming-
+# style.
+#class-rgx=
+
+# Naming style matching correct constant names.
+const-naming-style=UPPER_CASE
+
+# Regular expression matching correct constant names. Overrides const-naming-
+# style.
+#const-rgx=
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+# Naming style matching correct function names.
+function-naming-style=snake_case
+
+# Regular expression matching correct function names. Overrides function-
+# naming-style.
+#function-rgx=
+
+# Good variable names which should always be accepted, separated by a comma.
+good-names=i,
+           j,
+           k,
+           ex,
+           Run,
+           _,
+           x,
+           y,
+           w,
+           h,
+           a,
+           b
+
+# Good variable names regexes, separated by a comma. If names match any regex,
+# they will always be accepted
+good-names-rgxs=
+
+# Include a hint for the correct naming format with invalid-name.
+include-naming-hint=no
+
+# Naming style matching correct inline iteration names.
+inlinevar-naming-style=any
+
+# Regular expression matching correct inline iteration names. Overrides
+# inlinevar-naming-style.
+#inlinevar-rgx=
+
+# Naming style matching correct method names.
+method-naming-style=snake_case
+
+# Regular expression matching correct method names. Overrides method-naming-
+# style.
+#method-rgx=
+
+# Naming style matching correct module names.
+module-naming-style=snake_case
+
+# Regular expression matching correct module names. Overrides module-naming-
+# style.
+#module-rgx=
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=^_
+
+# List of decorators that produce properties, such as abc.abstractproperty. Add
+# to this list to register other decorators that produce valid properties.
+# These decorators are taken in consideration only for invalid-name.
+property-classes=abc.abstractproperty
+
+# Naming style matching correct variable names.
+variable-naming-style=snake_case
+
+# Regular expression matching correct variable names. Overrides variable-
+# naming-style.
+#variable-rgx=
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method.
+max-args=5
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Maximum number of boolean expressions in an if statement (see R0916).
+max-bool-expr=5
+
+# Maximum number of branch for function / method body.
+max-branches=12
+
+# Maximum number of locals for function / method body.
+max-locals=15
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of return / yield for function / method body.
+max-returns=6
+
+# Maximum number of statements in function / method body.
+max-statements=50
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+
+[IMPORTS]
+
+# List of modules that can be imported at any level, not just the top level
+# one.
+allow-any-import-level=
+
+# Allow wildcard imports from modules that define __all__.
+allow-wildcard-with-all=no
+
+# Analyse import fallback blocks. This can be used to support both Python 2 and
+# 3 compatible code, which means that the block might have code that exists
+# only in one or another interpreter, leading to false positives when analysed.
+analyse-fallback-blocks=no
+
+# Deprecated modules which should not be used, separated by a comma.
+deprecated-modules=optparse,tkinter.tix
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled).
+ext-import-graph=
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled).
+import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled).
+int-import-graph=
+
+# Force import order to recognize a module as part of the standard
+# compatibility libraries.
+known-standard-library=
+
+# Force import order to recognize a module as part of a third party library.
+known-third-party=enchant
+
+# Couples of modules and preferred modules, separated by a comma.
+preferred-modules=
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,
+                      __new__,
+                      setUp,
+                      __post_init__
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,
+                  _fields,
+                  _replace,
+                  _source,
+                  _make
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=cls
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "BaseException, Exception".
+overgeneral-exceptions=BaseException,
+                       Exception
diff --git a/mmocr-dev-1.x/.readthedocs.yml b/mmocr-dev-1.x/.readthedocs.yml
new file mode 100644
index 0000000000000000000000000000000000000000..5d508503d475b736ef08545e5c130cb8f373cd1a
--- /dev/null
+++ b/mmocr-dev-1.x/.readthedocs.yml
@@ -0,0 +1,9 @@
+version: 2
+
+formats: all
+
+python:
+    version: 3.7
+    install:
+      - requirements: requirements/docs.txt
+      - requirements: requirements/readthedocs.txt
diff --git a/mmocr-dev-1.x/CITATION.cff b/mmocr-dev-1.x/CITATION.cff
new file mode 100644
index 0000000000000000000000000000000000000000..7d1d93a7c68daf442bc6540b197b401e7a38b91c
--- /dev/null
+++ b/mmocr-dev-1.x/CITATION.cff
@@ -0,0 +1,9 @@
+cff-version: 1.2.0
+message: "If you use this software, please cite it as below."
+title: "OpenMMLab Text Detection, Recognition and Understanding Toolbox"
+authors:
+  - name: "MMOCR Contributors"
+version: 0.3.0
+date-released: 2020-08-15
+repository-code: "https://github.com/open-mmlab/mmocr"
+license: Apache-2.0
diff --git a/mmocr-dev-1.x/LICENSE b/mmocr-dev-1.x/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..3076a4378396deea4db311adbe1fbfd8b8b05920
--- /dev/null
+++ b/mmocr-dev-1.x/LICENSE
@@ -0,0 +1,203 @@
+Copyright (c) MMOCR Authors. All rights reserved.
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2021 MMOCR Authors. All rights reserved.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/mmocr-dev-1.x/MANIFEST.in b/mmocr-dev-1.x/MANIFEST.in
new file mode 100644
index 0000000000000000000000000000000000000000..2ba112301a27e08af6939187dbd8e24cd85e852d
--- /dev/null
+++ b/mmocr-dev-1.x/MANIFEST.in
@@ -0,0 +1,5 @@
+include requirements/*.txt
+include mmocr/.mim/model-index.yml
+include mmocr/.mim/dicts/*.txt
+recursive-include mmocr/.mim/configs *.py *.yml
+recursive-include mmocr/.mim/tools *.sh *.py
diff --git a/mmocr-dev-1.x/README.md b/mmocr-dev-1.x/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..1acff842ecf6d84845e1fd347d480f7c6dd88f9d
--- /dev/null
+++ b/mmocr-dev-1.x/README.md
@@ -0,0 +1,251 @@
+<div align="center">
+  <img src="resources/mmocr-logo.png" width="500px"/>
+  <div>&nbsp;</div>
+  <div align="center">
+    <b><font size="5">OpenMMLab website</font></b>
+    <sup>
+      <a href="https://openmmlab.com">
+        <i><font size="4">HOT</font></i>
+      </a>
+    </sup>
+    &nbsp;&nbsp;&nbsp;&nbsp;
+    <b><font size="5">OpenMMLab platform</font></b>
+    <sup>
+      <a href="https://platform.openmmlab.com">
+        <i><font size="4">TRY IT OUT</font></i>
+      </a>
+    </sup>
+  </div>
+  <div>&nbsp;</div>
+
+[![build](https://github.com/open-mmlab/mmocr/workflows/build/badge.svg)](https://github.com/open-mmlab/mmocr/actions)
+[![docs](https://readthedocs.org/projects/mmocr/badge/?version=dev-1.x)](https://mmocr.readthedocs.io/en/dev-1.x/?badge=dev-1.x)
+[![codecov](https://codecov.io/gh/open-mmlab/mmocr/branch/main/graph/badge.svg)](https://codecov.io/gh/open-mmlab/mmocr)
+[![license](https://img.shields.io/github/license/open-mmlab/mmocr.svg)](https://github.com/open-mmlab/mmocr/blob/main/LICENSE)
+[![PyPI](https://badge.fury.io/py/mmocr.svg)](https://pypi.org/project/mmocr/)
+[![Average time to resolve an issue](https://isitmaintained.com/badge/resolution/open-mmlab/mmocr.svg)](https://github.com/open-mmlab/mmocr/issues)
+[![Percentage of issues still open](https://isitmaintained.com/badge/open/open-mmlab/mmocr.svg)](https://github.com/open-mmlab/mmocr/issues)
+<a href="https://console.tiyaro.ai/explore?q=mmocr&pub=mmocr"> <img src="https://tiyaro-public-docs.s3.us-west-2.amazonaws.com/assets/try_on_tiyaro_badge.svg"></a>
+
+[📘Documentation](https://mmocr.readthedocs.io/en/dev-1.x/) |
+[🛠️Installation](https://mmocr.readthedocs.io/en/dev-1.x/get_started/install.html) |
+[👀Model Zoo](https://mmocr.readthedocs.io/en/dev-1.x/modelzoo.html) |
+[🆕Update News](https://mmocr.readthedocs.io/en/dev-1.x/notes/changelog.html) |
+[🤔Reporting Issues](https://github.com/open-mmlab/mmocr/issues/new/choose)
+
+</div>
+
+<div align="center">
+
+English | [简体中文](README_zh-CN.md)
+
+</div>
+<div align="center">
+  <a href="https://openmmlab.medium.com/" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/219255827-67c1a27f-f8c5-46a9-811d-5e57448c61d1.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://discord.gg/raweFPmdzG" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/218347213-c080267f-cbb6-443e-8532-8e1ed9a58ea9.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://twitter.com/OpenMMLab" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/218346637-d30c8a0f-3eba-4699-8131-512fb06d46db.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://www.youtube.com/openmmlab" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/218346691-ceb2116a-465a-40af-8424-9f30d2348ca9.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://space.bilibili.com/1293512903" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/219026751-d7d14cce-a7c9-4e82-9942-8375fca65b99.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://www.zhihu.com/people/openmmlab" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/219026120-ba71e48b-6e94-4bd4-b4e9-b7d175b5e362.png" width="3%" alt="" /></a>
+</div>
+
+## Latest Updates
+
+**The default branch is now `main` and the code on the branch has been upgraded to v1.0.0. The old `main` branch (v0.6.3) code now exists on the `0.x` branch.** If you have been using the `main` branch and encounter upgrade issues, please read the [Migration Guide](https://mmocr.readthedocs.io/en/dev-1.x/migration/overview.html) and notes on [Branches](https://mmocr.readthedocs.io/en/dev-1.x/migration/branches.html) .
+
+v1.0.0 was released in 2023-04-06. Major updates from 1.0.0rc6 include:
+
+1. Support for SCUT-CTW1500, SynthText, and MJSynth datasets in Dataset Preparer
+2. Updated FAQ and documentation
+3. Deprecation of file_client_args in favor of backend_args
+4. Added a new MMOCR tutorial notebook
+
+To know more about the updates in MMOCR 1.0, please refer to [What's New in MMOCR 1.x](https://mmocr.readthedocs.io/en/dev-1.x/migration/news.html), or
+Read [Changelog](https://mmocr.readthedocs.io/en/dev-1.x/notes/changelog.html) for more details!
+
+## Introduction
+
+MMOCR is an open-source toolbox based on PyTorch and mmdetection for text detection, text recognition, and the corresponding downstream tasks including key information extraction. It is part of the [OpenMMLab](https://openmmlab.com/) project.
+
+The main branch works with **PyTorch 1.6+**.
+
+<div align="center">
+  <img src="https://user-images.githubusercontent.com/24622904/187838618-1fdc61c0-2d46-49f9-8502-976ffdf01f28.png"/>
+</div>
+
+### Major Features
+
+- **Comprehensive Pipeline**
+
+  The toolbox supports not only text detection and text recognition, but also their downstream tasks such as key information extraction.
+
+- **Multiple Models**
+
+  The toolbox supports a wide variety of state-of-the-art models for text detection, text recognition and key information extraction.
+
+- **Modular Design**
+
+  The modular design of MMOCR enables users to define their own optimizers, data preprocessors, and model components such as backbones, necks and heads as well as losses. Please refer to [Overview](https://mmocr.readthedocs.io/en/dev-1.x/get_started/overview.html) for how to construct a customized model.
+
+- **Numerous Utilities**
+
+  The toolbox provides a comprehensive set of utilities which can help users assess the performance of models. It includes visualizers which allow visualization of images, ground truths as well as predicted bounding boxes, and a validation tool for evaluating checkpoints during training.  It also includes data converters to demonstrate how to convert your own data to the annotation files which the toolbox supports.
+
+## Installation
+
+MMOCR depends on [PyTorch](https://pytorch.org/), [MMEngine](https://github.com/open-mmlab/mmengine), [MMCV](https://github.com/open-mmlab/mmcv) and [MMDetection](https://github.com/open-mmlab/mmdetection).
+Below are quick steps for installation.
+Please refer to [Install Guide](https://mmocr.readthedocs.io/en/dev-1.x/get_started/install.html) for more detailed instruction.
+
+```shell
+conda create -n open-mmlab python=3.8 pytorch=1.10 cudatoolkit=11.3 torchvision -c pytorch -y
+conda activate open-mmlab
+pip3 install openmim
+git clone https://github.com/open-mmlab/mmocr.git
+cd mmocr
+mim install -e .
+```
+
+## Get Started
+
+Please see [Quick Run](https://mmocr.readthedocs.io/en/dev-1.x/get_started/quick_run.html) for the basic usage of MMOCR.
+
+## [Model Zoo](https://mmocr.readthedocs.io/en/dev-1.x/modelzoo.html)
+
+Supported algorithms:
+
+<details open>
+<summary>BackBone</summary>
+
+- [x] [oCLIP](configs/backbone/oclip/README.md) (ECCV'2022)
+
+</details>
+
+<details open>
+<summary>Text Detection</summary>
+
+- [x] [DBNet](configs/textdet/dbnet/README.md) (AAAI'2020) / [DBNet++](configs/textdet/dbnetpp/README.md) (TPAMI'2022)
+- [x] [Mask R-CNN](configs/textdet/maskrcnn/README.md) (ICCV'2017)
+- [x] [PANet](configs/textdet/panet/README.md) (ICCV'2019)
+- [x] [PSENet](configs/textdet/psenet/README.md) (CVPR'2019)
+- [x] [TextSnake](configs/textdet/textsnake/README.md) (ECCV'2018)
+- [x] [DRRG](configs/textdet/drrg/README.md) (CVPR'2020)
+- [x] [FCENet](configs/textdet/fcenet/README.md) (CVPR'2021)
+
+</details>
+
+<details open>
+<summary>Text Recognition</summary>
+
+- [x] [ABINet](configs/textrecog/abinet/README.md) (CVPR'2021)
+- [x] [ASTER](configs/textrecog/aster/README.md) (TPAMI'2018)
+- [x] [CRNN](configs/textrecog/crnn/README.md) (TPAMI'2016)
+- [x] [MASTER](configs/textrecog/master/README.md) (PR'2021)
+- [x] [NRTR](configs/textrecog/nrtr/README.md) (ICDAR'2019)
+- [x] [RobustScanner](configs/textrecog/robust_scanner/README.md) (ECCV'2020)
+- [x] [SAR](configs/textrecog/sar/README.md) (AAAI'2019)
+- [x] [SATRN](configs/textrecog/satrn/README.md) (CVPR'2020 Workshop on Text and Documents in the Deep Learning Era)
+- [x] [SVTR](configs/textrecog/svtr/README.md) (IJCAI'2022)
+
+</details>
+
+<details open>
+<summary>Key Information Extraction</summary>
+
+- [x] [SDMG-R](configs/kie/sdmgr/README.md) (ArXiv'2021)
+
+</details>
+
+<details open>
+<summary>Text Spotting</summary>
+
+- [x] [ABCNet](projects/ABCNet/README.md) (CVPR'2020)
+- [x] [ABCNetV2](projects/ABCNet/README_V2.md) (TPAMI'2021)
+- [x] [SPTS](projects/SPTS/README.md) (ACM MM'2022)
+
+</details>
+
+Please refer to [model_zoo](https://mmocr.readthedocs.io/en/dev-1.x/modelzoo.html) for more details.
+
+## Projects
+
+[Here](projects/README.md) are some implementations of SOTA models and solutions built on MMOCR, which are supported and maintained by community users. These projects demonstrate the best practices based on MMOCR for research and product development. We welcome and appreciate all the contributions to OpenMMLab ecosystem.
+
+## Contributing
+
+We appreciate all contributions to improve MMOCR. Please refer to [CONTRIBUTING.md](.github/CONTRIBUTING.md) for the contributing guidelines.
+
+## Acknowledgement
+
+MMOCR is an open-source project that is contributed by researchers and engineers from various colleges and companies. We appreciate all the contributors who implement their methods or add new features, as well as users who give valuable feedbacks.
+We hope the toolbox and benchmark could serve the growing research community by providing a flexible toolkit to reimplement existing methods and develop their own new OCR methods.
+
+## Citation
+
+If you find this project useful in your research, please consider cite:
+
+```bibtex
+@article{mmocr2021,
+    title={MMOCR:  A Comprehensive Toolbox for Text Detection, Recognition and Understanding},
+    author={Kuang, Zhanghui and Sun, Hongbin and Li, Zhizhong and Yue, Xiaoyu and Lin, Tsui Hin and Chen, Jianyong and Wei, Huaqiang and Zhu, Yiqin and Gao, Tong and Zhang, Wenwei and Chen, Kai and Zhang, Wayne and Lin, Dahua},
+    journal= {arXiv preprint arXiv:2108.06543},
+    year={2021}
+}
+```
+
+## License
+
+This project is released under the [Apache 2.0 license](LICENSE).
+
+## OpenMMLab Family
+
+- [MMEngine](https://github.com/open-mmlab/mmengine): OpenMMLab foundational library for training deep learning models
+- [MMCV](https://github.com/open-mmlab/mmcv): OpenMMLab foundational library for computer vision.
+- [MIM](https://github.com/open-mmlab/mim): MIM installs OpenMMLab packages.
+- [MMClassification](https://github.com/open-mmlab/mmclassification): OpenMMLab image classification toolbox and benchmark.
+- [MMDetection](https://github.com/open-mmlab/mmdetection): OpenMMLab detection toolbox and benchmark.
+- [MMDetection3D](https://github.com/open-mmlab/mmdetection3d): OpenMMLab's next-generation platform for general 3D object detection.
+- [MMRotate](https://github.com/open-mmlab/mmrotate): OpenMMLab rotated object detection toolbox and benchmark.
+- [MMSegmentation](https://github.com/open-mmlab/mmsegmentation): OpenMMLab semantic segmentation toolbox and benchmark.
+- [MMOCR](https://github.com/open-mmlab/mmocr): OpenMMLab text detection, recognition, and understanding toolbox.
+- [MMPose](https://github.com/open-mmlab/mmpose): OpenMMLab pose estimation toolbox and benchmark.
+- [MMHuman3D](https://github.com/open-mmlab/mmhuman3d): OpenMMLab 3D human parametric model toolbox and benchmark.
+- [MMSelfSup](https://github.com/open-mmlab/mmselfsup): OpenMMLab self-supervised learning toolbox and benchmark.
+- [MMRazor](https://github.com/open-mmlab/mmrazor): OpenMMLab model compression toolbox and benchmark.
+- [MMFewShot](https://github.com/open-mmlab/mmfewshot): OpenMMLab fewshot learning toolbox and benchmark.
+- [MMAction2](https://github.com/open-mmlab/mmaction2): OpenMMLab's next-generation action understanding toolbox and benchmark.
+- [MMTracking](https://github.com/open-mmlab/mmtracking): OpenMMLab video perception toolbox and benchmark.
+- [MMFlow](https://github.com/open-mmlab/mmflow): OpenMMLab optical flow toolbox and benchmark.
+- [MMEditing](https://github.com/open-mmlab/mmediting): OpenMMLab image and video editing toolbox.
+- [MMGeneration](https://github.com/open-mmlab/mmgeneration): OpenMMLab image and video generative models toolbox.
+- [MMDeploy](https://github.com/open-mmlab/mmdeploy): OpenMMLab model deployment framework.
+
+## Welcome to the OpenMMLab community
+
+Scan the QR code below to follow the OpenMMLab team's [**Zhihu Official Account**](https://www.zhihu.com/people/openmmlab) and join the OpenMMLab team's [**QQ Group**](https://jq.qq.com/?_wv=1027&k=aCvMxdr3), or join the official communication WeChat group by adding the WeChat, or join our [**Slack**](https://join.slack.com/t/mmocrworkspace/shared_invite/zt-1ifqhfla8-yKnLO_aKhVA2h71OrK8GZw)
+
+<div align="center">
+<img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/zhihu_qrcode.jpg" height="400" />  <img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/qq_group_qrcode.jpg" height="400" />  <img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/wechat_qrcode.jpg" height="400" />
+</div>
+
+We will provide you with the OpenMMLab community
+
+- 📢 share the latest core technologies of AI frameworks
+- 💻 Explaining PyTorch common module source Code
+- 📰 News related to the release of OpenMMLab
+- 🚀 Introduction of cutting-edge algorithms developed by OpenMMLab
+  🏃 Get the more efficient answer and feedback
+- 🔥 Provide a platform for communication with developers from all walks of life
+
+The OpenMMLab community looks forward to your participation! 👬
diff --git a/mmocr-dev-1.x/README_zh-CN.md b/mmocr-dev-1.x/README_zh-CN.md
new file mode 100644
index 0000000000000000000000000000000000000000..c38839637ec2e410e830cbcc8eb45160b178f8fd
--- /dev/null
+++ b/mmocr-dev-1.x/README_zh-CN.md
@@ -0,0 +1,250 @@
+<div align="center">
+  <img src="resources/mmocr-logo.png" width="500px"/>
+  <div>&nbsp;</div>
+  <div align="center">
+    <b><font size="5">OpenMMLab 官网</font></b>
+    <sup>
+      <a href="https://openmmlab.com">
+        <i><font size="4">HOT</font></i>
+      </a>
+    </sup>
+    &nbsp;&nbsp;&nbsp;&nbsp;
+    <b><font size="5">OpenMMLab 开放平台</font></b>
+    <sup>
+      <a href="https://platform.openmmlab.com">
+        <i><font size="4">TRY IT OUT</font></i>
+      </a>
+    </sup>
+  </div>
+  <div>&nbsp;</div>
+
+[![build](https://github.com/open-mmlab/mmocr/workflows/build/badge.svg)](https://github.com/open-mmlab/mmocr/actions)
+[![docs](https://readthedocs.org/projects/mmocr/badge/?version=dev-1.x)](https://mmocr.readthedocs.io/en/dev-1.x/?badge=dev-1.x)
+[![codecov](https://codecov.io/gh/open-mmlab/mmocr/branch/main/graph/badge.svg)](https://codecov.io/gh/open-mmlab/mmocr)
+[![license](https://img.shields.io/github/license/open-mmlab/mmocr.svg)](https://github.com/open-mmlab/mmocr/blob/main/LICENSE)
+[![PyPI](https://badge.fury.io/py/mmocr.svg)](https://pypi.org/project/mmocr/)
+[![Average time to resolve an issue](https://isitmaintained.com/badge/resolution/open-mmlab/mmocr.svg)](https://github.com/open-mmlab/mmocr/issues)
+[![Percentage of issues still open](https://isitmaintained.com/badge/open/open-mmlab/mmocr.svg)](https://github.com/open-mmlab/mmocr/issues)
+<a href="https://console.tiyaro.ai/explore?q=mmocr&pub=mmocr"> <img src="https://tiyaro-public-docs.s3.us-west-2.amazonaws.com/assets/try_on_tiyaro_badge.svg"></a>
+
+[📘文档](https://mmocr.readthedocs.io/zh_CN/dev-1.x/) |
+[🛠️安装](https://mmocr.readthedocs.io/zh_CN/dev-1.x/get_started/install.html) |
+[👀模型库](https://mmocr.readthedocs.io/zh_CN/dev-1.x/modelzoo.html) |
+[🆕更新日志](https://mmocr.readthedocs.io/en/dev-1.x/notes/changelog.html) |
+[🤔报告问题](https://github.com/open-mmlab/mmocr/issues/new/choose)
+
+</div>
+
+<div align="center">
+
+[English](/README.md) | 简体中文
+
+</div>
+
+<div align="center">
+  <a href="https://openmmlab.medium.com/" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/219255827-67c1a27f-f8c5-46a9-811d-5e57448c61d1.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://discord.gg/raweFPmdzG" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/218347213-c080267f-cbb6-443e-8532-8e1ed9a58ea9.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://twitter.com/OpenMMLab" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/218346637-d30c8a0f-3eba-4699-8131-512fb06d46db.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://www.youtube.com/openmmlab" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/218346691-ceb2116a-465a-40af-8424-9f30d2348ca9.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://space.bilibili.com/1293512903" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/219026751-d7d14cce-a7c9-4e82-9942-8375fca65b99.png" width="3%" alt="" /></a>
+  <img src="https://user-images.githubusercontent.com/25839884/218346358-56cc8e2f-a2b8-487f-9088-32480cceabcf.png" width="3%" alt="" />
+  <a href="https://www.zhihu.com/people/openmmlab" style="text-decoration:none;">
+    <img src="https://user-images.githubusercontent.com/25839884/219026120-ba71e48b-6e94-4bd4-b4e9-b7d175b5e362.png" width="3%" alt="" /></a>
+</div>
+
+## 近期更新
+
+**默认分支目前为 `main`，且分支上的代码已经切换到 v1.0.0 版本。旧版 `main` 分支（v0.6.3）的代码现存在 `0.x` 分支上。** 如果您一直在使用 `main` 分支，并遇到升级问题，请阅读 [迁移指南](https://mmocr.readthedocs.io/zh_CN/dev-1.x/migration/overview.html) 和 [分支说明](https://mmocr.readthedocs.io/zh_CN/dev-1.x/migration/branches.html) 。
+
+最新的版本 v1.0.0 于 2023-04-06 发布。其相对于 1.0.0rc6 的主要更新如下：
+
+1. Dataset Preparer 中支持了 SCUT-CTW1500, SynthText 和 MJSynth 数据集；
+2. 更新了文档和 FAQ；
+3. 升级文件后端；使用了 `backend_args` 替换 `file_client_args`;
+4. 增加了 MMOCR 教程 notebook。
+
+如果需要了解 MMOCR 1.0 相对于 0.x 的升级内容，请阅读 [MMOCR 1.x 更新汇总](https://mmocr.readthedocs.io/zh_CN/dev-1.x/migration/news.html)；或者阅读[更新日志](https://mmocr.readthedocs.io/zh_CN/dev-1.x/notes/changelog.html)以获取更多信息。
+
+## 简介
+
+MMOCR 是基于 PyTorch 和 mmdetection 的开源工具箱，专注于文本检测，文本识别以及相应的下游任务，如关键信息提取。 它是 OpenMMLab 项目的一部分。
+
+主分支目前支持 **PyTorch 1.6 以上**的版本。
+
+<div align="center">
+  <img src="https://user-images.githubusercontent.com/24622904/187838618-1fdc61c0-2d46-49f9-8502-976ffdf01f28.png"/>
+</div>
+
+### 主要特性
+
+-**全流程**
+
+该工具箱不仅支持文本检测和文本识别，还支持其下游任务，例如关键信息提取。
+
+-**多种模型**
+
+该工具箱支持用于文本检测，文本识别和关键信息提取的各种最新模型。
+
+-**模块化设计**
+
+MMOCR 的模块化设计使用户可以定义自己的优化器，数据预处理器，模型组件如主干模块，颈部模块和头部模块，以及损失函数。有关如何构建自定义模型的信息，请参考[概览](https://mmocr.readthedocs.io/zh_CN/dev-1.x/get_started/overview.html)。
+
+-**众多实用工具**
+
+该工具箱提供了一套全面的实用程序，可以帮助用户评估模型的性能。它包括可对图像，标注的真值以及预测结果进行可视化的可视化工具，以及用于在训练过程中评估模型的验证工具。它还包括数据转换器，演示了如何将用户自建的标注数据转换为 MMOCR 支持的标注文件。
+
+## 安装
+
+MMOCR 依赖 [PyTorch](https://pytorch.org/), [MMEngine](https://github.com/open-mmlab/mmengine), [MMCV](https://github.com/open-mmlab/mmcv) 和 [MMDetection](https://github.com/open-mmlab/mmdetection)，以下是安装的简要步骤。
+更详细的安装指南请参考 [安装文档](https://mmocr.readthedocs.io/zh_CN/dev-1.x/get_started/install.html)。
+
+```shell
+conda create -n open-mmlab python=3.8 pytorch=1.10 cudatoolkit=11.3 torchvision -c pytorch -y
+conda activate open-mmlab
+pip3 install openmim
+git clone https://github.com/open-mmlab/mmocr.git
+cd mmocr
+mim install -e .
+```
+
+## 快速入门
+
+请参考[快速入门](https://mmocr.readthedocs.io/zh_CN/dev-1.x/get_started/quick_run.html)文档学习 MMOCR 的基本使用。
+
+## [模型库](https://mmocr.readthedocs.io/zh_CN/dev-1.x/modelzoo.html)
+
+支持的算法：
+
+<details open>
+<summary>骨干网络</summary>
+
+- [x] [oCLIP](configs/backbone/oclip/README.md) (ECCV'2022)
+
+</details>
+
+<details open>
+<summary>文字检测</summary>
+
+- [x] [DBNet](configs/textdet/dbnet/README.md) (AAAI'2020) / [DBNet++](configs/textdet/dbnetpp/README.md) (TPAMI'2022)
+- [x] [Mask R-CNN](configs/textdet/maskrcnn/README.md) (ICCV'2017)
+- [x] [PANet](configs/textdet/panet/README.md) (ICCV'2019)
+- [x] [PSENet](configs/textdet/psenet/README.md) (CVPR'2019)
+- [x] [TextSnake](configs/textdet/textsnake/README.md) (ECCV'2018)
+- [x] [DRRG](configs/textdet/drrg/README.md) (CVPR'2020)
+- [x] [FCENet](configs/textdet/fcenet/README.md) (CVPR'2021)
+
+</details>
+
+<details open>
+<summary>文字识别</summary>
+
+- [x] [ABINet](configs/textrecog/abinet/README.md) (CVPR'2021)
+- [x] [ASTER](configs/textrecog/aster/README.md) (TPAMI'2018)
+- [x] [CRNN](configs/textrecog/crnn/README.md) (TPAMI'2016)
+- [x] [MASTER](configs/textrecog/master/README.md) (PR'2021)
+- [x] [NRTR](configs/textrecog/nrtr/README.md) (ICDAR'2019)
+- [x] [RobustScanner](configs/textrecog/robust_scanner/README.md) (ECCV'2020)
+- [x] [SAR](configs/textrecog/sar/README.md) (AAAI'2019)
+- [x] [SATRN](configs/textrecog/satrn/README.md) (CVPR'2020 Workshop on Text and Documents in the Deep Learning Era)
+- [x] [SVTR](configs/textrecog/svtr/README.md) (IJCAI'2022)
+
+</details>
+
+<details open>
+<summary>关键信息提取</summary>
+
+- [x] [SDMG-R](configs/kie/sdmgr/README.md) (ArXiv'2021)
+
+</details>
+
+<details open>
+<summary>端对端 OCR</summary>
+
+- [x] [ABCNet](projects/ABCNet/README.md) (CVPR'2020)
+- [x] [ABCNetV2](projects/ABCNet/README_V2.md) (TPAMI'2021)
+- [x] [SPTS](projects/SPTS/README.md) (ACM MM'2022)
+
+</details>
+
+请点击[模型库](https://mmocr.readthedocs.io/zh_CN/dev-1.x/modelzoo.html)查看更多关于上述算法的详细信息。
+
+## 社区项目
+
+[这里](projects/README.md)有一些由社区用户支持和维护的基于 MMOCR 的 SOTA 模型和解决方案的实现。这些项目展示了基于 MMOCR 的研究和产品开发的最佳实践。
+我们欢迎并感谢对 OpenMMLab 生态系统的所有贡献。
+
+## 贡献指南
+
+我们感谢所有的贡献者为改进和提升 MMOCR 所作出的努力。请参考[贡献指南](.github/CONTRIBUTING.md)来了解参与项目贡献的相关指引。
+
+## 致谢
+
+MMOCR 是一款由来自不同高校和企业的研发人员共同参与贡献的开源项目。我们感谢所有为项目提供算法复现和新功能支持的贡献者，以及提供宝贵反馈的用户。 我们希望此工具箱可以帮助大家来复现已有的方法和开发新的方法，从而为研究社区贡献力量。
+
+## 引用
+
+如果您发现此项目对您的研究有用，请考虑引用：
+
+```bibtex
+@article{mmocr2021,
+    title={MMOCR:  A Comprehensive Toolbox for Text Detection, Recognition and Understanding},
+    author={Kuang, Zhanghui and Sun, Hongbin and Li, Zhizhong and Yue, Xiaoyu and Lin, Tsui Hin and Chen, Jianyong and Wei, Huaqiang and Zhu, Yiqin and Gao, Tong and Zhang, Wenwei and Chen, Kai and Zhang, Wayne and Lin, Dahua},
+    journal= {arXiv preprint arXiv:2108.06543},
+    year={2021}
+}
+```
+
+## 开源许可证
+
+该项目采用 [Apache 2.0 license](LICENSE) 开源许可证。
+
+## OpenMMLab 的其他项目
+
+- [MMEngine](https://github.com/open-mmlab/mmengine): OpenMMLab 深度学习模型训练基础库
+- [MMCV](https://github.com/open-mmlab/mmcv): OpenMMLab 计算机视觉基础库
+- [MIM](https://github.com/open-mmlab/mim): MIM 是 OpenMMlab 项目、算法、模型的统一入口
+- [MMClassification](https://github.com/open-mmlab/mmclassification): OpenMMLab 图像分类工具箱
+- [MMDetection](https://github.com/open-mmlab/mmdetection): OpenMMLab 目标检测工具箱
+- [MMDetection3D](https://github.com/open-mmlab/mmdetection3d): OpenMMLab 新一代通用 3D 目标检测平台
+- [MMRotate](https://github.com/open-mmlab/mmrotate): OpenMMLab 旋转框检测工具箱与测试基准
+- [MMSegmentation](https://github.com/open-mmlab/mmsegmentation): OpenMMLab 语义分割工具箱
+- [MMOCR](https://github.com/open-mmlab/mmocr): OpenMMLab 全流程文字检测识别理解工具箱
+- [MMPose](https://github.com/open-mmlab/mmpose): OpenMMLab 姿态估计工具箱
+- [MMHuman3D](https://github.com/open-mmlab/mmhuman3d): OpenMMLab 人体参数化模型工具箱与测试基准
+- [MMSelfSup](https://github.com/open-mmlab/mmselfsup): OpenMMLab 自监督学习工具箱与测试基准
+- [MMRazor](https://github.com/open-mmlab/mmrazor): OpenMMLab 模型压缩工具箱与测试基准
+- [MMFewShot](https://github.com/open-mmlab/mmfewshot): OpenMMLab 少样本学习工具箱与测试基准
+- [MMAction2](https://github.com/open-mmlab/mmaction2): OpenMMLab 新一代视频理解工具箱
+- [MMTracking](https://github.com/open-mmlab/mmtracking): OpenMMLab 一体化视频目标感知平台
+- [MMFlow](https://github.com/open-mmlab/mmflow): OpenMMLab 光流估计工具箱与测试基准
+- [MMEditing](https://github.com/open-mmlab/mmediting): OpenMMLab 图像视频编辑工具箱
+- [MMGeneration](https://github.com/open-mmlab/mmgeneration): OpenMMLab 图片视频生成模型工具箱
+- [MMDeploy](https://github.com/open-mmlab/mmdeploy): OpenMMLab 模型部署框架
+
+## 欢迎加入 OpenMMLab 社区
+
+扫描下方的二维码可关注 OpenMMLab 团队的 [知乎官方账号](https://www.zhihu.com/people/openmmlab)，加入 OpenMMLab 团队的 [官方交流 QQ 群](https://r.vansin.top/?r=join-qq)，或通过添加微信“Open小喵Lab”加入官方交流微信群。
+
+<div align="center">
+<img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/zhihu_qrcode.jpg" height="400" />  <img src="https://cdn.vansin.top/OpenMMLab/q3.png" height="400" />  <img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/wechat_qrcode.jpg" height="400" />
+</div>
+
+我们会在 OpenMMLab 社区为大家
+
+- 📢 分享 AI 框架的前沿核心技术
+- 💻 解读 PyTorch 常用模块源码
+- 📰 发布 OpenMMLab 的相关新闻
+- 🚀 介绍 OpenMMLab 开发的前沿算法
+- 🏃 获取更高效的问题答疑和意见反馈
+- 🔥 提供与各行各业开发者充分交流的平台
+
+干货满满 📘，等你来撩 💗，OpenMMLab 社区期待您的加入 👬
diff --git a/mmocr-dev-1.x/configs/backbone/oclip/README.md b/mmocr-dev-1.x/configs/backbone/oclip/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..e29cf971f6f8e6ba6c4fc640e6d06c5583d2909d
--- /dev/null
+++ b/mmocr-dev-1.x/configs/backbone/oclip/README.md
@@ -0,0 +1,41 @@
+# oCLIP
+
+> [Language Matters: A Weakly Supervised Vision-Language Pre-training Approach for Scene Text Detection and Spotting](https://www.ecva.net/papers/eccv_2022/papers_ECCV/papers/136880282.pdf)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Recently, Vision-Language Pre-training (VLP) techniques have greatly benefited various vision-language tasks by jointly learning visual and textual representations, which intuitively helps in Optical Character Recognition (OCR) tasks due to the rich visual and textual information in scene text images. However, these methods cannot well cope with OCR tasks because of the difficulty in both instance-level text encoding and image-text pair acquisition (i.e. images and captured texts in them). This paper presents a weakly supervised pre-training method, oCLIP, which can acquire effective scene text representations by jointly learning and aligning visual and textual information. Our network consists of an image encoder and a character-aware text encoder that extract visual and textual features, respectively, as well as a visual-textual decoder that models the interaction among textual and visual features for learning effective scene text representations. With the learning of textual features, the pre-trained model can attend texts in images well with character awareness. Besides, these designs enable the learning from weakly annotated texts (i.e. partial texts in images without text bounding boxes) which mitigates the data annotation constraint greatly. Experiments over the weakly annotated images in ICDAR2019-LSVT show that our pre-trained model improves F-score by +2.5% and +4.8% while transferring its weights to other text detection and spotting networks, respectively. In addition, the proposed method outperforms existing pre-training techniques consistently across multiple public datasets (e.g., +3.2% and +1.3% for Total-Text and CTW1500).
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/24622904/199475057-aa688422-518d-4d7a-86fc-1be0cc1b5dc6.png"/>
+</div>
+
+## Models
+
+| Backbone  | Pre-train Data |                                       Model                                       |
+| :-------: | :------------: | :-------------------------------------------------------------------------------: |
+| ResNet-50 |   SynthText    | [Link](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |
+
+```{note}
+The model is converted from the official [oCLIP](https://github.com/bytedance/oclip.git).
+```
+
+## Supported Text Detection Models
+
+|           | [DBNet](https://mmocr.readthedocs.io/en/dev-1.x/textdet_models.html#dbnet) | [DBNet++](https://mmocr.readthedocs.io/en/dev-1.x/textdet_models.html#dbnetpp) | [FCENet](https://mmocr.readthedocs.io/en/dev-1.x/textdet_models.html#fcenet) | [TextSnake](https://mmocr.readthedocs.io/en/dev-1.x/textdet_models.html#fcenet) | [PSENet](https://mmocr.readthedocs.io/en/dev-1.x/textdet_models.html#psenet) | [DRRG](https://mmocr.readthedocs.io/en/dev-1.x/textdet_models.html#drrg) | [Mask R-CNN](https://mmocr.readthedocs.io/en/dev-1.x/textdet_models.html#mask-r-cnn) |
+| :-------: | :------------------------------------------------------------------------: | :----------------------------------------------------------------------------: | :--------------------------------------------------------------------------: | :-----------------------------------------------------------------------------: | :--------------------------------------------------------------------------: | :----------------------------------------------------------------------: | :----------------------------------------------------------------------------------: |
+| ICDAR2015 |                                     ✓                                      |                                       ✓                                        |                                      ✓                                       |                                                                                 |                                      ✓                                       |                                                                          |                                          ✓                                           |
+|  CTW1500  |                                                                            |                                                                                |                                      ✓                                       |                                        ✓                                        |                                      ✓                                       |                                    ✓                                     |                                          ✓                                           |
+
+## Citation
+
+```bibtex
+@article{xue2022language,
+  title={Language Matters: A Weakly Supervised Vision-Language Pre-training Approach for Scene Text Detection and Spotting},
+  author={Xue, Chuhui and Zhang, Wenqing and Hao, Yu and Lu, Shijian and Torr, Philip and Bai, Song},
+  journal={Proceedings of the European Conference on Computer Vision (ECCV)},
+  year={2022}
+}
+```
diff --git a/mmocr-dev-1.x/configs/backbone/oclip/metafile.yml b/mmocr-dev-1.x/configs/backbone/oclip/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..8953af1b6b3c7b6190602be0af9e07753ed67518
--- /dev/null
+++ b/mmocr-dev-1.x/configs/backbone/oclip/metafile.yml
@@ -0,0 +1,13 @@
+Collections:
+- Name: oCLIP
+  Metadata:
+    Training Data: SynthText
+    Architecture:
+      - CLIPResNet
+  Paper:
+    URL: https://arxiv.org/abs/2203.03911
+    Title: 'Language Matters: A Weakly Supervised Vision-Language Pre-training Approach for Scene Text Detection and Spotting'
+  README: configs/backbone/oclip/README.md
+
+Models:
+  Weights: https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth
diff --git a/mmocr-dev-1.x/configs/kie/_base_/datasets/wildreceipt-openset.py b/mmocr-dev-1.x/configs/kie/_base_/datasets/wildreceipt-openset.py
new file mode 100644
index 0000000000000000000000000000000000000000..f82512839cdea57e559bd375be2a3f4146558af3
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/_base_/datasets/wildreceipt-openset.py
@@ -0,0 +1,26 @@
+wildreceipt_openset_data_root = 'data/wildreceipt/'
+
+wildreceipt_openset_train = dict(
+    type='WildReceiptDataset',
+    data_root=wildreceipt_openset_data_root,
+    metainfo=dict(category=[
+        dict(id=0, name='bg'),
+        dict(id=1, name='key'),
+        dict(id=2, name='value'),
+        dict(id=3, name='other')
+    ]),
+    ann_file='openset_train.txt',
+    pipeline=None)
+
+wildreceipt_openset_test = dict(
+    type='WildReceiptDataset',
+    data_root=wildreceipt_openset_data_root,
+    metainfo=dict(category=[
+        dict(id=0, name='bg'),
+        dict(id=1, name='key'),
+        dict(id=2, name='value'),
+        dict(id=3, name='other')
+    ]),
+    ann_file='openset_test.txt',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/kie/_base_/datasets/wildreceipt.py b/mmocr-dev-1.x/configs/kie/_base_/datasets/wildreceipt.py
new file mode 100644
index 0000000000000000000000000000000000000000..9c1122edd53c5c8df4bad55ad764c12e1714026a
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/_base_/datasets/wildreceipt.py
@@ -0,0 +1,16 @@
+wildreceipt_data_root = 'data/wildreceipt/'
+
+wildreceipt_train = dict(
+    type='WildReceiptDataset',
+    data_root=wildreceipt_data_root,
+    metainfo=wildreceipt_data_root + 'class_list.txt',
+    ann_file='train.txt',
+    pipeline=None)
+
+wildreceipt_test = dict(
+    type='WildReceiptDataset',
+    data_root=wildreceipt_data_root,
+    metainfo=wildreceipt_data_root + 'class_list.txt',
+    ann_file='test.txt',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/kie/_base_/default_runtime.py b/mmocr-dev-1.x/configs/kie/_base_/default_runtime.py
new file mode 100644
index 0000000000000000000000000000000000000000..bcc5b3fa02a0f3259f701cddecbc307988424a6b
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/_base_/default_runtime.py
@@ -0,0 +1,33 @@
+default_scope = 'mmocr'
+env_cfg = dict(
+    cudnn_benchmark=False,
+    mp_cfg=dict(mp_start_method='fork', opencv_num_threads=0),
+    dist_cfg=dict(backend='nccl'),
+)
+randomness = dict(seed=None)
+
+default_hooks = dict(
+    timer=dict(type='IterTimerHook'),
+    logger=dict(type='LoggerHook', interval=100),
+    param_scheduler=dict(type='ParamSchedulerHook'),
+    checkpoint=dict(type='CheckpointHook', interval=1),
+    sampler_seed=dict(type='DistSamplerSeedHook'),
+    sync_buffer=dict(type='SyncBuffersHook'),
+    visualization=dict(
+        type='VisualizationHook',
+        interval=1,
+        enable=False,
+        show=False,
+        draw_gt=False,
+        draw_pred=False),
+)
+
+# Logging
+log_level = 'INFO'
+log_processor = dict(type='LogProcessor', window_size=10, by_epoch=True)
+
+load_from = None
+resume = False
+
+visualizer = dict(
+    type='KIELocalVisualizer', name='visualizer', is_openset=False)
diff --git a/mmocr-dev-1.x/configs/kie/_base_/schedules/schedule_adam_60e.py b/mmocr-dev-1.x/configs/kie/_base_/schedules/schedule_adam_60e.py
new file mode 100644
index 0000000000000000000000000000000000000000..fd7147e2b86a8640966617bae1eb86d3347057f9
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/_base_/schedules/schedule_adam_60e.py
@@ -0,0 +1,10 @@
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper', optimizer=dict(type='Adam', weight_decay=0.0001))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=60, val_interval=1)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning rate
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[40, 50], end=60),
+]
diff --git a/mmocr-dev-1.x/configs/kie/sdmgr/README.md b/mmocr-dev-1.x/configs/kie/sdmgr/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..921af5310e46803c937168c6e1c0bdf17a372798
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/sdmgr/README.md
@@ -0,0 +1,41 @@
+# SDMGR
+
+> [Spatial Dual-Modality Graph Reasoning for Key Information Extraction](https://arxiv.org/abs/2103.14470)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Key information extraction from document images is of paramount importance in office automation. Conventional template matching based approaches fail to generalize well to document images of unseen templates, and are not robust against text recognition errors. In this paper, we propose an end-to-end Spatial Dual-Modality Graph Reasoning method (SDMG-R) to extract key information from unstructured document images. We model document images as dual-modality graphs, nodes of which encode both the visual and textual features of detected text regions, and edges of which represent the spatial relations between neighboring text regions. The key information extraction is solved by iteratively propagating messages along graph edges and reasoning the categories of graph nodes. In order to roundly evaluate our proposed method as well as boost the future research, we release a new dataset named WildReceipt, which is collected and annotated tailored for the evaluation of key information extraction from document images of unseen templates in the wild. It contains 25 key information categories, a total of about 69000 text boxes, and is about 2 times larger than the existing public datasets. Extensive experiments validate that all information including visual features, textual features and spatial relations can benefit key information extraction. It has been shown that SDMG-R can effectively extract key information from document images of unseen templates, and obtain new state-of-the-art results on the recent popular benchmark SROIE and our WildReceipt. Our code and dataset will be publicly released.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142580689-18edb4d7-f716-475c-b1c1-e2b934658cee.png"/>
+</div>
+
+## Results and models
+
+### WildReceipt
+
+|                                 Method                                 |     Modality     | Macro F1-Score |                                               Download                                               |
+| :--------------------------------------------------------------------: | :--------------: | :------------: | :--------------------------------------------------------------------------------------------------: |
+|   [sdmgr_unet16](/configs/kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py)   | Visual + Textual |     0.890      | [model](https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_unet16_60e_wildreceipt/sdmgr_unet16_60e_wildreceipt_20220825_151648-22419f37.pth) \| [log](https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_unet16_60e_wildreceipt/20220825_151648.log) |
+| [sdmgr_novisual](/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py) |     Textual      |     0.873      | [model](https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_novisual_60e_wildreceipt/sdmgr_novisual_60e_wildreceipt_20220831_193317-827649d8.pth) \| [log](https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_novisual_60e_wildreceipt/20220831_193317.log) |
+
+### WildReceiptOpenset
+
+|                                Method                                 | Modality | Edge F1-Score | Node Macro F1-Score | Node Micro F1-Score |                                 Download                                 |
+| :-------------------------------------------------------------------: | :------: | :-----------: | :-----------------: | :-----------------: | :----------------------------------------------------------------------: |
+| [sdmgr_novisual_openset](/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset.py) | Textual  |     0.792     |        0.931        |        0.940        | [model](https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset/sdmgr_novisual_60e_wildreceipt-openset_20220831_200807-dedf15ec.pth) \| [log](https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset/20220831_200807.log) |
+
+## Citation
+
+```bibtex
+@misc{sun2021spatial,
+      title={Spatial Dual-Modality Graph Reasoning for Key Information Extraction},
+      author={Hongbin Sun and Zhanghui Kuang and Xiaoyu Yue and Chenhao Lin and Wayne Zhang},
+      year={2021},
+      eprint={2103.14470},
+      archivePrefix={arXiv},
+      primaryClass={cs.CV}
+}
+```
diff --git a/mmocr-dev-1.x/configs/kie/sdmgr/_base_sdmgr_novisual.py b/mmocr-dev-1.x/configs/kie/sdmgr/_base_sdmgr_novisual.py
new file mode 100644
index 0000000000000000000000000000000000000000..5e85de2f78f020bd5695858098ad143dbbd09ed0
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/sdmgr/_base_sdmgr_novisual.py
@@ -0,0 +1,35 @@
+num_classes = 26
+
+model = dict(
+    type='SDMGR',
+    kie_head=dict(
+        type='SDMGRHead',
+        visual_dim=16,
+        num_classes=num_classes,
+        module_loss=dict(type='SDMGRModuleLoss'),
+        postprocessor=dict(type='SDMGRPostProcessor')),
+    dictionary=dict(
+        type='Dictionary',
+        dict_file='{{ fileDirname }}/../../../dicts/sdmgr_dict.txt',
+        with_padding=True,
+        with_unknown=True,
+        unknown_token=None),
+)
+
+train_pipeline = [
+    dict(type='LoadKIEAnnotations'),
+    dict(type='Resize', scale=(1024, 512), keep_ratio=True),
+    dict(type='PackKIEInputs')
+]
+test_pipeline = [
+    dict(type='LoadKIEAnnotations'),
+    dict(type='Resize', scale=(1024, 512), keep_ratio=True),
+    dict(type='PackKIEInputs'),
+]
+
+val_evaluator = dict(
+    type='F1Metric',
+    mode='macro',
+    num_classes=num_classes,
+    ignored_classes=[0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 25])
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/configs/kie/sdmgr/_base_sdmgr_unet16.py b/mmocr-dev-1.x/configs/kie/sdmgr/_base_sdmgr_unet16.py
new file mode 100644
index 0000000000000000000000000000000000000000..76aa631bdfbbf29013d27ac76c0e160d232d1500
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/sdmgr/_base_sdmgr_unet16.py
@@ -0,0 +1,28 @@
+_base_ = '_base_sdmgr_novisual.py'
+
+model = dict(
+    backbone=dict(type='UNet', base_channels=16),
+    roi_extractor=dict(
+        type='mmdet.SingleRoIExtractor',
+        roi_layer=dict(type='RoIAlign', output_size=7),
+        featmap_strides=[1]),
+    data_preprocessor=dict(
+        type='ImgDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32),
+)
+
+train_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='LoadKIEAnnotations'),
+    dict(type='Resize', scale=(1024, 512), keep_ratio=True),
+    dict(type='PackKIEInputs')
+]
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='LoadKIEAnnotations'),
+    dict(type='Resize', scale=(1024, 512), keep_ratio=True),
+    dict(type='PackKIEInputs', meta_keys=('img_path', )),
+]
diff --git a/mmocr-dev-1.x/configs/kie/sdmgr/metafile.yml b/mmocr-dev-1.x/configs/kie/sdmgr/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..da430e3d87ab7fe02a9560f7d0e441cce2ccf929
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/sdmgr/metafile.yml
@@ -0,0 +1,52 @@
+Collections:
+- Name: SDMGR
+  Metadata:
+    Training Data: KIEDataset
+    Training Techniques:
+      - Adam
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - UNet
+      - SDMGRHead
+  Paper:
+    URL: https://arxiv.org/abs/2103.14470.pdf
+    Title: 'Spatial Dual-Modality Graph Reasoning for Key Information Extraction'
+  README: configs/kie/sdmgr/README.md
+
+Models:
+  - Name: sdmgr_unet16_60e_wildreceipt
+    Alias: SDMGR
+    In Collection: SDMGR
+    Config: configs/kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py
+    Metadata:
+      Training Data: wildreceipt
+    Results:
+      - Task: Key Information Extraction
+        Dataset: wildreceipt
+        Metrics:
+          macro_f1: 0.890
+    Weights: https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_unet16_60e_wildreceipt/sdmgr_unet16_60e_wildreceipt_20220825_151648-22419f37.pth
+  - Name: sdmgr_novisual_60e_wildreceipt
+    In Collection: SDMGR
+    Config: configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py
+    Metadata:
+      Training Data: wildreceipt
+    Results:
+      - Task: Key Information Extraction
+        Dataset: wildreceipt
+        Metrics:
+          macro_f1: 0.873
+    Weights: https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_novisual_60e_wildreceipt/sdmgr_novisual_60e_wildreceipt_20220831_193317-827649d8.pth
+  - Name: sdmgr_novisual_60e_wildreceipt_openset
+    In Collection: SDMGR
+    Config: configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset.py
+    Metadata:
+      Training Data: wildreceipt-openset
+    Results:
+      - Task: Key Information Extraction
+        Dataset: wildreceipt
+        Metrics:
+          macro_f1: 0.931
+          micro_f1: 0.940
+          edge_micro_f1: 0.792
+    Weights: https://download.openmmlab.com/mmocr/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset/sdmgr_novisual_60e_wildreceipt-openset_20220831_200807-dedf15ec.pth
diff --git a/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset.py b/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset.py
new file mode 100644
index 0000000000000000000000000000000000000000..bc3d52a1ce93d4baf267edc923c71f2b9482e767
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt-openset.py
@@ -0,0 +1,71 @@
+_base_ = [
+    '../_base_/default_runtime.py',
+    '../_base_/datasets/wildreceipt-openset.py',
+    '../_base_/schedules/schedule_adam_60e.py',
+    '_base_sdmgr_novisual.py',
+]
+
+node_num_classes = 4  # 4 classes: bg, key, value and other
+edge_num_classes = 2  # edge connectivity
+key_node_idx = 1
+value_node_idx = 2
+
+model = dict(
+    type='SDMGR',
+    kie_head=dict(
+        num_classes=node_num_classes,
+        postprocessor=dict(
+            link_type='one-to-many',
+            key_node_idx=key_node_idx,
+            value_node_idx=value_node_idx)),
+)
+
+test_pipeline = [
+    dict(
+        type='LoadKIEAnnotations',
+        key_node_idx=key_node_idx,
+        value_node_idx=value_node_idx),  # Keep key->value edges for evaluation
+    dict(type='Resize', scale=(1024, 512), keep_ratio=True),
+    dict(type='PackKIEInputs'),
+]
+
+wildreceipt_openset_train = _base_.wildreceipt_openset_train
+wildreceipt_openset_train.pipeline = _base_.train_pipeline
+wildreceipt_openset_test = _base_.wildreceipt_openset_test
+wildreceipt_openset_test.pipeline = test_pipeline
+
+train_dataloader = dict(
+    batch_size=4,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=wildreceipt_openset_train)
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=wildreceipt_openset_test)
+test_dataloader = val_dataloader
+
+val_evaluator = [
+    dict(
+        type='F1Metric',
+        prefix='node',
+        key='labels',
+        mode=['micro', 'macro'],
+        num_classes=node_num_classes,
+        cared_classes=[key_node_idx, value_node_idx]),
+    dict(
+        type='F1Metric',
+        prefix='edge',
+        mode='micro',
+        key='edge_labels',
+        cared_classes=[1],  # Collapse to binary F1 score
+        num_classes=edge_num_classes)
+]
+test_evaluator = val_evaluator
+
+visualizer = dict(
+    type='KIELocalVisualizer', name='visualizer', is_openset=True)
+auto_scale_lr = dict(base_batch_size=4)
diff --git a/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py b/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py
new file mode 100644
index 0000000000000000000000000000000000000000..b56c2b9b665b1bd5c2734aa41fa1e563feda5a81
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py
@@ -0,0 +1,28 @@
+_base_ = [
+    '../_base_/default_runtime.py',
+    '../_base_/datasets/wildreceipt.py',
+    '../_base_/schedules/schedule_adam_60e.py',
+    '_base_sdmgr_novisual.py',
+]
+
+wildreceipt_train = _base_.wildreceipt_train
+wildreceipt_train.pipeline = _base_.train_pipeline
+wildreceipt_test = _base_.wildreceipt_test
+wildreceipt_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=4,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=wildreceipt_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=wildreceipt_test)
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=4)
diff --git a/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py b/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py
new file mode 100644
index 0000000000000000000000000000000000000000..d49cbbc33798e815a24cb29cf3bc008460948c88
--- /dev/null
+++ b/mmocr-dev-1.x/configs/kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py
@@ -0,0 +1,29 @@
+_base_ = [
+    '../_base_/default_runtime.py',
+    '../_base_/datasets/wildreceipt.py',
+    '../_base_/schedules/schedule_adam_60e.py',
+    '_base_sdmgr_unet16.py',
+]
+
+wildreceipt_train = _base_.wildreceipt_train
+wildreceipt_train.pipeline = _base_.train_pipeline
+wildreceipt_test = _base_.wildreceipt_test
+wildreceipt_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=4,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=wildreceipt_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=wildreceipt_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=4)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/datasets/ctw1500.py b/mmocr-dev-1.x/configs/textdet/_base_/datasets/ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..3361f734d0d92752336d13b60f293b785a92e927
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/datasets/ctw1500.py
@@ -0,0 +1,15 @@
+ctw1500_textdet_data_root = 'data/ctw1500'
+
+ctw1500_textdet_train = dict(
+    type='OCRDataset',
+    data_root=ctw1500_textdet_data_root,
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+ctw1500_textdet_test = dict(
+    type='OCRDataset',
+    data_root=ctw1500_textdet_data_root,
+    ann_file='textdet_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/datasets/icdar2015.py b/mmocr-dev-1.x/configs/textdet/_base_/datasets/icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..958cb4fa17f50ed7dc967ccceb11cfb9426cd867
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/datasets/icdar2015.py
@@ -0,0 +1,15 @@
+icdar2015_textdet_data_root = 'data/icdar2015'
+
+icdar2015_textdet_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+icdar2015_textdet_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/datasets/icdar2017.py b/mmocr-dev-1.x/configs/textdet/_base_/datasets/icdar2017.py
new file mode 100644
index 0000000000000000000000000000000000000000..804cb26f96f2bcfb3fdf9803cf36d79e997c57a8
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/datasets/icdar2017.py
@@ -0,0 +1,17 @@
+icdar2017_textdet_data_root = 'data/det/icdar_2017'
+
+icdar2017_textdet_train = dict(
+    type='OCRDataset',
+    data_root=icdar2017_textdet_data_root,
+    ann_file='instances_training.json',
+    data_prefix=dict(img_path='imgs/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+icdar2017_textdet_test = dict(
+    type='OCRDataset',
+    data_root=icdar2017_textdet_data_root,
+    ann_file='instances_test.json',
+    data_prefix=dict(img_path='imgs/'),
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/datasets/synthtext.py b/mmocr-dev-1.x/configs/textdet/_base_/datasets/synthtext.py
new file mode 100644
index 0000000000000000000000000000000000000000..9b2310c36fbd89be9a99d2ecba6f823d28532e35
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/datasets/synthtext.py
@@ -0,0 +1,8 @@
+synthtext_textdet_data_root = 'data/synthtext'
+
+synthtext_textdet_train = dict(
+    type='OCRDataset',
+    data_root=synthtext_textdet_data_root,
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/datasets/totaltext.py b/mmocr-dev-1.x/configs/textdet/_base_/datasets/totaltext.py
new file mode 100644
index 0000000000000000000000000000000000000000..29efc842fb0c558b98c1b8e805973360013b804e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/datasets/totaltext.py
@@ -0,0 +1,15 @@
+totaltext_textdet_data_root = 'data/totaltext'
+
+totaltext_textdet_train = dict(
+    type='OCRDataset',
+    data_root=totaltext_textdet_data_root,
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+totaltext_textdet_test = dict(
+    type='OCRDataset',
+    data_root=totaltext_textdet_data_root,
+    ann_file='textdet_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/datasets/toy_data.py b/mmocr-dev-1.x/configs/textdet/_base_/datasets/toy_data.py
new file mode 100644
index 0000000000000000000000000000000000000000..50138769b7bfd99babafcc2aa6e85593c2b0dbf1
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/datasets/toy_data.py
@@ -0,0 +1,17 @@
+toy_det_data_root = 'tests/data/det_toy_dataset'
+
+toy_det_train = dict(
+    type='OCRDataset',
+    data_root=toy_det_data_root,
+    ann_file='instances_training.json',
+    data_prefix=dict(img_path='imgs/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+toy_det_test = dict(
+    type='OCRDataset',
+    data_root=toy_det_data_root,
+    ann_file='instances_test.json',
+    data_prefix=dict(img_path='imgs/'),
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/default_runtime.py b/mmocr-dev-1.x/configs/textdet/_base_/default_runtime.py
new file mode 100644
index 0000000000000000000000000000000000000000..81480273b5a7b30d5d7113fb1cb9380b16de5e8f
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/default_runtime.py
@@ -0,0 +1,41 @@
+default_scope = 'mmocr'
+env_cfg = dict(
+    cudnn_benchmark=False,
+    mp_cfg=dict(mp_start_method='fork', opencv_num_threads=0),
+    dist_cfg=dict(backend='nccl'),
+)
+randomness = dict(seed=None)
+
+default_hooks = dict(
+    timer=dict(type='IterTimerHook'),
+    logger=dict(type='LoggerHook', interval=5),
+    param_scheduler=dict(type='ParamSchedulerHook'),
+    checkpoint=dict(type='CheckpointHook', interval=20),
+    sampler_seed=dict(type='DistSamplerSeedHook'),
+    sync_buffer=dict(type='SyncBuffersHook'),
+    visualization=dict(
+        type='VisualizationHook',
+        interval=1,
+        enable=False,
+        show=False,
+        draw_gt=False,
+        draw_pred=False),
+)
+
+# Logging
+log_level = 'INFO'
+log_processor = dict(type='LogProcessor', window_size=10, by_epoch=True)
+
+load_from = None
+resume = False
+
+# Evaluation
+val_evaluator = dict(type='HmeanIOUMetric')
+test_evaluator = val_evaluator
+
+# Visualization
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextDetLocalVisualizer',
+    name='visualizer',
+    vis_backends=vis_backends)
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/pretrain_runtime.py b/mmocr-dev-1.x/configs/textdet/_base_/pretrain_runtime.py
new file mode 100644
index 0000000000000000000000000000000000000000..cb2800d50a570881475035e3b0da9c81e88712d1
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/pretrain_runtime.py
@@ -0,0 +1,14 @@
+_base_ = 'default_runtime.py'
+
+default_hooks = dict(
+    logger=dict(type='LoggerHook', interval=1000),
+    checkpoint=dict(
+        type='CheckpointHook',
+        interval=10000,
+        by_epoch=False,
+        max_keep_ckpts=1),
+)
+
+# Evaluation
+val_evaluator = None
+test_evaluator = None
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_adam_600e.py b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_adam_600e.py
new file mode 100644
index 0000000000000000000000000000000000000000..eb61f7b9ee1b2ab18c8f75f24e7a204a9f90ee54
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_adam_600e.py
@@ -0,0 +1,9 @@
+# optimizer
+optim_wrapper = dict(type='OptimWrapper', optimizer=dict(type='Adam', lr=1e-3))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=600, val_interval=20)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning rate
+param_scheduler = [
+    dict(type='PolyLR', power=0.9, end=600),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_100k.py b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_100k.py
new file mode 100644
index 0000000000000000000000000000000000000000..f760774b7b2e21886fc3bbe0746fe3bf843d3471
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_100k.py
@@ -0,0 +1,12 @@
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='SGD', lr=0.007, momentum=0.9, weight_decay=0.0001))
+
+train_cfg = dict(type='IterBasedTrainLoop', max_iters=100000)
+test_cfg = None
+val_cfg = None
+# learning policy
+param_scheduler = [
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, by_epoch=False, end=100000),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_1200e.py b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_1200e.py
new file mode 100644
index 0000000000000000000000000000000000000000..f8555e468bccaa6e5dbca23c9d2821164e21e516
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_1200e.py
@@ -0,0 +1,11 @@
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='SGD', lr=0.007, momentum=0.9, weight_decay=0.0001))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=1200, val_interval=20)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning policy
+param_scheduler = [
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, end=1200),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_base.py b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_base.py
new file mode 100644
index 0000000000000000000000000000000000000000..baf559de231db06382529079be7d5bba071b209e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/_base_/schedules/schedule_sgd_base.py
@@ -0,0 +1,15 @@
+# Note: This schedule config serves as a base config for other schedules.
+# Users would have to at least fill in "max_epochs" and "val_interval"
+# in order to use this config in their experiments.
+
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='SGD', lr=0.007, momentum=0.9, weight_decay=0.0001))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=None, val_interval=20)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning policy
+param_scheduler = [
+    dict(type='ConstantLR', factor=1.0),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/README.md b/mmocr-dev-1.x/configs/textdet/dbnet/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..07c91edbaf8c8bbe96ae59fc8d17725314da47c8
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/README.md
@@ -0,0 +1,47 @@
+# DBNet
+
+> [Real-time Scene Text Detection with Differentiable Binarization](https://arxiv.org/abs/1911.08947)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Recently, segmentation-based methods are quite popular in scene text detection, as the segmentation results can more accurately describe scene text of various shapes such as curve text. However, the post-processing of binarization is essential for segmentation-based detection, which converts probability maps produced by a segmentation method into bounding boxes/regions of text. In this paper, we propose a module named Differentiable Binarization (DB), which can perform the binarization process in a segmentation network. Optimized along with a DB module, a segmentation network can adaptively set the thresholds for binarization, which not only simplifies the post-processing but also enhances the performance of text detection. Based on a simple segmentation network, we validate the performance improvements of DB on five benchmark datasets, which consistently achieves state-of-the-art results, in terms of both detection accuracy and speed. In particular, with a light-weight backbone, the performance improvements by DB are significant so that we can look for an ideal tradeoff between detection accuracy and efficiency. Specifically, with a backbone of ResNet-18, our detector achieves an F-measure of 82.8, running at 62 FPS, on the MSRA-TD500 dataset.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142791306-0da6db2a-20a6-4a68-b228-64ff275f67b3.png"/>
+</div>
+
+## Results and models
+
+### SynthText
+
+|                                  Method                                   | Backbone | Training set | #iters  |                                               Download                                               |
+| :-----------------------------------------------------------------------: | :------: | :----------: | :-----: | :--------------------------------------------------------------------------------------------------: |
+| [DBNet_r18](/configs/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext.py) | ResNet18 |  SynthText   | 100,000 | [model](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext/dbnet_resnet18_fpnc_100k_synthtext-2e9bf392.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext/20221214_150351.log) |
+
+### ICDAR2015
+
+|             Method             |             Backbone             |             Pretrained Model             |  Training set   |    Test set    | #epochs | Test size | Precision | Recall | Hmean  |             Download             |
+| :----------------------------: | :------------------------------: | :--------------------------------------: | :-------------: | :------------: | :-----: | :-------: | :-------: | :----: | :----: | :------------------------------: |
+| [DBNet_r18](/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py) |             ResNet18             |                    -                     | ICDAR2015 Train | ICDAR2015 Test |  1200   |    736    |  0.8853   | 0.7583 | 0.8169 | [model](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015/dbnet_resnet18_fpnc_1200e_icdar2015_20220825_221614-7c0e94f2.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015/20220825_221614.log) |
+| [DBNet_r50](/configs/textdet/dbnet/dbnet_resnet50_1200e_icdar2015.py) |             ResNet50             |                    -                     | ICDAR2015 Train | ICDAR2015 Test |  1200   |   1024    |  0.8744   | 0.8276 | 0.8504 | [model](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50_1200e_icdar2015/dbnet_resnet50_1200e_icdar2015_20221102_115917-54f50589.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50_1200e_icdar2015/20221102_115917.log) |
+| [DBNet_r50dcn](/configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py) |           ResNet50-DCN           | [Synthtext](https://download.openmmlab.com/mmocr/textdet/dbnet/tmp_1.0_pretrain/dbnet_r50dcnv2_fpnc_sbn_2e_synthtext_20210325-ed322016.pth) | ICDAR2015 Train | ICDAR2015 Test |  1200   |   1024    |  0.8784   | 0.8315 | 0.8543 | [model](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015_20220828_124917-452c443c.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015/20220828_124917.log) |
+| [DBNet_r50-oclip](/configs/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |                    -                     | ICDAR2015 Train | ICDAR2015 Test |  1200   |   1024    |  0.9052   | 0.8272 | 0.8644 | [model](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015/dbnet_resnet50-oclip_1200e_icdar2015_20221102_115917-bde8c87a.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015/20221102_115917.log) |
+
+### Total Text
+
+|                         Method                         | Backbone | Pretrained Model |  Training set   |    Test set    | #epochs | Test size | Precision | Recall | Hmean  |                         Download                         |
+| :----------------------------------------------------: | :------: | :--------------: | :-------------: | :------------: | :-----: | :-------: | :-------: | :----: | :----: | :------------------------------------------------------: |
+| [DBNet_r18](/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext.py) | ResNet18 |        -         | Totaltext Train | Totaltext Test |  1200   |    736    |  0.8640   | 0.7770 | 0.8182 | [model](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext/dbnet_resnet18_fpnc_1200e_totaltext-3ed3233c.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext/20221219_201038.log) |
+
+## Citation
+
+```bibtex
+@article{Liao_Wan_Yao_Chen_Bai_2020,
+    title={Real-Time Scene Text Detection with Differentiable Binarization},
+    journal={Proceedings of the AAAI Conference on Artificial Intelligence},
+    author={Liao, Minghui and Wan, Zhaoyi and Yao, Cong and Chen, Kai and Bai, Xiang},
+    year={2020},
+    pages={11474-11481}}
+```
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/_base_dbnet_resnet18_fpnc.py b/mmocr-dev-1.x/configs/textdet/dbnet/_base_dbnet_resnet18_fpnc.py
new file mode 100644
index 0000000000000000000000000000000000000000..44907100b05b2544e27ce476a6368feef1a178da
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/_base_dbnet_resnet18_fpnc.py
@@ -0,0 +1,64 @@
+model = dict(
+    type='DBNet',
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=18,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet18'),
+        norm_eval=False,
+        style='caffe'),
+    neck=dict(
+        type='FPNC', in_channels=[64, 128, 256, 512], lateral_channels=256),
+    det_head=dict(
+        type='DBHead',
+        in_channels=256,
+        module_loss=dict(type='DBModuleLoss'),
+        postprocessor=dict(type='DBPostprocessor', text_repr_type='quad')),
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1333, 736), keep_ratio=True),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/_base_dbnet_resnet50-dcnv2_fpnc.py b/mmocr-dev-1.x/configs/textdet/dbnet/_base_dbnet_resnet50-dcnv2_fpnc.py
new file mode 100644
index 0000000000000000000000000000000000000000..952f079d478586516c28ddafea63ebc45ab7aa80
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/_base_dbnet_resnet50-dcnv2_fpnc.py
@@ -0,0 +1,66 @@
+model = dict(
+    type='DBNet',
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        norm_eval=False,
+        style='pytorch',
+        dcn=dict(type='DCNv2', deform_groups=1, fallback_on_stride=False),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+        stage_with_dcn=(False, True, True, True)),
+    neck=dict(
+        type='FPNC', in_channels=[256, 512, 1024, 2048], lateral_channels=256),
+    det_head=dict(
+        type='DBHead',
+        in_channels=256,
+        module_loss=dict(type='DBModuleLoss'),
+        postprocessor=dict(type='DBPostprocessor', text_repr_type='quad')),
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_bbox=True,
+        with_polygon=True,
+        with_label=True,
+    ),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(4068, 1024), keep_ratio=True),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext.py b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext.py
new file mode 100644
index 0000000000000000000000000000000000000000..839146dd380a5b6f2a24280bdab123662b0d8476
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext.py
@@ -0,0 +1,45 @@
+_base_ = [
+    '_base_dbnet_resnet18_fpnc.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/pretrain_runtime.py',
+    '../_base_/schedules/schedule_sgd_100k.py',
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='FixInvalidPolygon'),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+# dataset settings
+synthtext_textdet_train = _base_.synthtext_textdet_train
+synthtext_textdet_train.pipeline = train_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=synthtext_textdet_train)
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..feea2004b158fa3787b9a9f9d1c2b32e1bb8ae1d
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
@@ -0,0 +1,30 @@
+_base_ = [
+    '_base_dbnet_resnet18_fpnc.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext.py b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext.py
new file mode 100644
index 0000000000000000000000000000000000000000..9728db946b0419ae1825a986c9918c7e0f70bb55
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext.py
@@ -0,0 +1,73 @@
+_base_ = [
+    '_base_dbnet_resnet18_fpnc.py',
+    '../_base_/datasets/totaltext.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='FixInvalidPolygon', min_poly_points=4),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1333, 736), keep_ratio=True),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='FixInvalidPolygon', min_poly_points=4),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+# dataset settings
+totaltext_textdet_train = _base_.totaltext_textdet_train
+totaltext_textdet_test = _base_.totaltext_textdet_test
+totaltext_textdet_train.pipeline = train_pipeline
+totaltext_textdet_test.pipeline = test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=16,
+    pin_memory=True,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=totaltext_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    pin_memory=True,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=totaltext_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_100k_synthtext.py b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_100k_synthtext.py
new file mode 100644
index 0000000000000000000000000000000000000000..567e5984e54e9747f044715078d2a6f69bcfc792
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_100k_synthtext.py
@@ -0,0 +1,30 @@
+_base_ = [
+    '_base_dbnet_resnet50-dcnv2_fpnc.py',
+    '../_base_/default_runtime.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/schedules/schedule_sgd_100k.py',
+]
+
+# dataset settings
+synthtext_textdet_train = _base_.synthtext_textdet_train
+synthtext_textdet_train.pipeline = _base_.train_pipeline
+synthtext_textdet_test = _base_.synthtext_textdet_test
+synthtext_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=synthtext_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=synthtext_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..f961a2e70c9a17d0bfbfbc5963bd8a0da79427b1
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py
@@ -0,0 +1,33 @@
+_base_ = [
+    '_base_dbnet_resnet50-dcnv2_fpnc.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+# TODO: Replace the link
+load_from = 'https://download.openmmlab.com/mmocr/textdet/dbnet/tmp_1.0_pretrain/dbnet_r50dcnv2_fpnc_sbn_2e_synthtext_20210325-ed322016.pth'  # noqa
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..1c67883c63b601990bea7292d4fe22819b31e91e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015.py
@@ -0,0 +1,20 @@
+_base_ = [
+    'dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py',
+]
+
+load_from = None
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
+
+_base_.train_dataloader.num_workers = 24
+_base_.optim_wrapper.optimizer.lr = 0.002
+
+param_scheduler = [
+    dict(type='LinearLR', end=100, start_factor=0.001),
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, begin=100, end=1200),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50_1200e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..38a876b2583e50c5b99d271383492e7f05d429a7
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/dbnet_resnet50_1200e_icdar2015.py
@@ -0,0 +1,24 @@
+_base_ = [
+    'dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py',
+]
+
+load_from = None
+
+_base_.model.backbone = dict(
+    type='mmdet.ResNet',
+    depth=50,
+    num_stages=4,
+    out_indices=(0, 1, 2, 3),
+    frozen_stages=-1,
+    norm_cfg=dict(type='BN', requires_grad=True),
+    norm_eval=True,
+    style='pytorch',
+    init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'))
+
+_base_.train_dataloader.num_workers = 24
+_base_.optim_wrapper.optimizer.lr = 0.002
+
+param_scheduler = [
+    dict(type='LinearLR', end=100, start_factor=0.001),
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, begin=100, end=1200),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnet/metafile.yml b/mmocr-dev-1.x/configs/textdet/dbnet/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..bdcb89faeeadc944a1466f1a4cfa46f7d910330c
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnet/metafile.yml
@@ -0,0 +1,80 @@
+Collections:
+- Name: DBNet
+  Metadata:
+    Training Data: ICDAR2015
+    Training Techniques:
+      - SGD with Momentum
+      - Weight Decay
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet
+      - FPNC
+  Paper:
+    URL: https://arxiv.org/pdf/1911.08947.pdf
+    Title: 'Real-time Scene Text Detection with Differentiable Binarization'
+  README: configs/textdet/dbnet/README.md
+
+Models:
+  - Name: dbnet_resnet18_fpnc_1200e_icdar2015
+    Alias: DB_r18
+    In Collection: DBNet
+    Config: configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8169
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015/dbnet_resnet18_fpnc_1200e_icdar2015_20220825_221614-7c0e94f2.pth
+
+  - Name: dbnet_resnet50_fpnc_1200e_icdar2015
+    In Collection: DBNet
+    Config: configs/textdet/dbnet/dbnet_resnet50_fpnc_1200e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8504
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50_1200e_icdar2015/dbnet_resnet50_1200e_icdar2015_20221102_115917-54f50589.pth
+
+  - Name: dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015
+    In Collection: DBNet
+    Config: configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8543
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015_20220828_124917-452c443c.pth
+
+  - Name: dbnet_resnet50-oclip_fpnc_1200e_icdar2015
+    In Collection: DBNet
+    Alias:
+      - DB_r50
+      - DBNet
+    Config: configs/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8644
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet50-oclip_1200e_icdar2015/dbnet_resnet50-oclip_1200e_icdar2015_20221102_115917-bde8c87a.pth
+
+  - Name: dbnet_resnet18_fpnc_1200e_totaltext
+    In Collection: DBNet
+    Config: configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext.py
+    Metadata:
+      Training Data: Totaltext
+    Results:
+      - Task: Text Detection
+        Dataset: Totaltext
+        Metrics:
+          hmean-iou: 0.8182
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext/dbnet_resnet18_fpnc_1200e_totaltext-3ed3233c.pth
diff --git a/mmocr-dev-1.x/configs/textdet/dbnetpp/README.md b/mmocr-dev-1.x/configs/textdet/dbnetpp/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..7f9b668a45de9314de24b790316ece859aea9e11
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnetpp/README.md
@@ -0,0 +1,41 @@
+# DBNetpp
+
+> [Real-Time Scene Text Detection with Differentiable Binarization and Adaptive Scale Fusion](https://arxiv.org/abs/2202.10304)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Recently, segmentation-based scene text detection methods have drawn extensive attention in the scene text detection field, because of their superiority in detecting the text instances of arbitrary shapes and extreme aspect ratios, profiting from the pixel-level descriptions. However, the vast majority of the existing segmentation-based approaches are limited to their complex post-processing algorithms and the scale robustness of their segmentation models, where the post-processing algorithms are not only isolated to the model optimization but also time-consuming and the scale robustness is usually strengthened by fusing multi-scale feature maps directly. In this paper, we propose a Differentiable Binarization (DB) module that integrates the binarization process, one of the most important steps in the post-processing procedure, into a segmentation network. Optimized along with the proposed DB module, the segmentation network can produce more accurate results, which enhances the accuracy of text detection with a simple pipeline. Furthermore, an efficient Adaptive Scale Fusion (ASF) module is proposed to improve the scale robustness by fusing features of different scales adaptively. By incorporating the proposed DB and ASF with the segmentation network, our proposed scene text detector consistently achieves state-of-the-art results, in terms of both detection accuracy and speed, on five standard benchmarks.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/45810070/166850828-f1e48c25-4a0f-429d-ae54-6997ed25c062.png"/>
+</div>
+
+## Results and models
+
+### SynthText
+
+|                                       Method                                       |    BackBone    | Training set | #iters  |                                       Download                                        |
+| :--------------------------------------------------------------------------------: | :------------: | :----------: | :-----: | :-----------------------------------------------------------------------------------: |
+| [DBNetpp_r50dcn](/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext.py) | ResNet50-dcnv2 |  SynthText   | 100,000 | [model](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext-00f0a80b.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext/20221215_013531.log) |
+
+### ICDAR2015
+
+|             Method             |             BackBone             |             Pretrained Model             |  Training set   |    Test set    | #epochs | Test size | Precision | Recall | Hmean  |             Download             |
+| :----------------------------: | :------------------------------: | :--------------------------------------: | :-------------: | :------------: | :-----: | :-------: | :-------: | :----: | :----: | :------------------------------: |
+| [DBNetpp_r50](/configs/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015.py) |             ResNet50             |                    -                     | ICDAR2015 Train | ICDAR2015 Test |  1200   |   1024    |  0.9079   | 0.8209 | 0.8622 | [model](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015/dbnetpp_resnet50_fpnc_1200e_icdar2015_20221025_185550-013730aa.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015/20221025_185550.log) |
+| [DBNetpp_r50dcn](/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py) |          ResNet50-dcnv2          | [Synthtext](/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext.py) ([model](https://download.openmmlab.com/mmocr/textdet/dbnetpp/tmp_1.0_pretrain/dbnetpp_r50dcnv2_fpnc_100k_iter_synthtext-20220502-352fec8a.pth)) | ICDAR2015 Train | ICDAR2015 Test |  1200   |   1024    |  0.9116   | 0.8291 | 0.8684 | [model](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015_20220829_230108-f289bd20.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015/20220829_230108.log) |
+| [DBNetpp_r50-oclip](/configs/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |                    -                     | ICDAR2015 Train | ICDAR2015 Test |  1200   |   1024    |  0.9174   | 0.8609 | 0.8882 | [model](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015_20221101_124139-4ecb39ac.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015/20221101_124139.log) |
+
+## Citation
+
+```bibtex
+@article{liao2022real,
+    title={Real-Time Scene Text Detection with Differentiable Binarization and Adaptive Scale Fusion},
+    author={Liao, Minghui and Zou, Zhisheng and Wan, Zhaoyi and Yao, Cong and Bai, Xiang},
+    journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
+    year={2022},
+    publisher={IEEE}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textdet/dbnetpp/_base_dbnetpp_resnet50-dcnv2_fpnc.py b/mmocr-dev-1.x/configs/textdet/dbnetpp/_base_dbnetpp_resnet50-dcnv2_fpnc.py
new file mode 100644
index 0000000000000000000000000000000000000000..ec4d1bcc5624d32db8bcf7ba96015d4780118925
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnetpp/_base_dbnetpp_resnet50-dcnv2_fpnc.py
@@ -0,0 +1,72 @@
+model = dict(
+    type='DBNet',
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        norm_eval=False,
+        style='pytorch',
+        dcn=dict(type='DCNv2', deform_groups=1, fallback_on_stride=False),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+        stage_with_dcn=(False, True, True, True)),
+    neck=dict(
+        type='FPNC',
+        in_channels=[256, 512, 1024, 2048],
+        lateral_channels=256,
+        asf_cfg=dict(attention_type='ScaleChannelSpatial')),
+    det_head=dict(
+        type='DBHead',
+        in_channels=256,
+        module_loss=dict(type='DBModuleLoss'),
+        postprocessor=dict(
+            type='DBPostprocessor', text_repr_type='quad',
+            epsilon_ratio=0.002)),
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_bbox=True,
+        with_polygon=True,
+        with_label=True,
+    ),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(4068, 1024), keep_ratio=True),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor',
+                   'instances'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext.py b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext.py
new file mode 100644
index 0000000000000000000000000000000000000000..7174055dae61e8e4406e891359aa38957acf6a24
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_100k_synthtext.py
@@ -0,0 +1,44 @@
+_base_ = [
+    '_base_dbnetpp_resnet50-dcnv2_fpnc.py',
+    '../_base_/pretrain_runtime.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/schedules/schedule_sgd_100k.py',
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_bbox=True,
+        with_polygon=True,
+        with_label=True,
+    ),
+    dict(type='FixInvalidPolygon'),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+synthtext_textdet_train = _base_.synthtext_textdet_train
+synthtext_textdet_train.pipeline = train_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=synthtext_textdet_train)
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..c4682b440320db97af808704fb8c3606937ee235
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py
@@ -0,0 +1,36 @@
+_base_ = [
+    '_base_dbnetpp_resnet50-dcnv2_fpnc.py',
+    '../_base_/default_runtime.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+load_from = 'https://download.openmmlab.com/mmocr/textdet/dbnetpp/tmp_1.0_pretrain/dbnetpp_r50dcnv2_fpnc_100k_iter_synthtext-20220502-352fec8a.pth'  # noqa
+
+# dataset settings
+train_list = [_base_.icdar2015_textdet_train]
+test_list = [_base_.icdar2015_textdet_test]
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=train_list,
+        pipeline=_base_.train_pipeline))
+
+val_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..737985241484fa1d2649d4da698a3bcf0e83321b
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015.py
@@ -0,0 +1,20 @@
+_base_ = [
+    'dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py',
+]
+
+load_from = None
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
+
+_base_.train_dataloader.num_workers = 24
+_base_.optim_wrapper.optimizer.lr = 0.002
+
+param_scheduler = [
+    dict(type='LinearLR', end=200, start_factor=0.001),
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, begin=200, end=1200),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..0e2f2789c953238b04b3d42a6da1a8c5887b13d7
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015.py
@@ -0,0 +1,24 @@
+_base_ = [
+    'dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py',
+]
+
+load_from = None
+
+_base_.model.backbone = dict(
+    type='mmdet.ResNet',
+    depth=50,
+    num_stages=4,
+    out_indices=(0, 1, 2, 3),
+    frozen_stages=-1,
+    norm_cfg=dict(type='BN', requires_grad=True),
+    norm_eval=True,
+    style='pytorch',
+    init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'))
+
+_base_.train_dataloader.num_workers = 24
+_base_.optim_wrapper.optimizer.lr = 0.003
+
+param_scheduler = [
+    dict(type='LinearLR', end=200, start_factor=0.001),
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, begin=200, end=1200),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/dbnetpp/metafile.yml b/mmocr-dev-1.x/configs/textdet/dbnetpp/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..bb78ffac9c06a8a47c183123fa6d94eea1534102
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/dbnetpp/metafile.yml
@@ -0,0 +1,56 @@
+Collections:
+- Name: DBNetpp
+  Metadata:
+    Training Data: ICDAR2015
+    Training Techniques:
+      - SGD with Momentum
+      - Weight Decay
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet
+      - FPNC
+  Paper:
+    URL: https://arxiv.org/abs/2202.10304
+    Title: 'Real-Time Scene Text Detection with Differentiable Binarization and Adaptive Scale Fusion'
+  README: configs/textdet/dbnetpp/README.md
+
+Models:
+  - Name: dbnetpp_resnet50_fpnc_1200e_icdar2015
+    In Collection: DBNetpp
+    Alias:
+      - DBPP_r50
+    Config: configs/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8622
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50_fpnc_1200e_icdar2015/dbnetpp_resnet50_fpnc_1200e_icdar2015_20221025_185550-013730aa.pth
+
+  - Name: dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015
+    In Collection: DBNetpp
+    Config: configs/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8684
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015/dbnetpp_resnet50-dcnv2_fpnc_1200e_icdar2015_20220829_230108-f289bd20.pth
+
+  - Name: dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015
+    Alias:
+      - DBNetpp
+    In Collection: DBNetpp
+    Config: configs/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8882
+    Weights: https://download.openmmlab.com/mmocr/textdet/dbnetpp/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015/dbnetpp_resnet50-oclip_fpnc_1200e_icdar2015_20221101_124139-4ecb39ac.pth
diff --git a/mmocr-dev-1.x/configs/textdet/drrg/README.md b/mmocr-dev-1.x/configs/textdet/drrg/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..0a056fc5f17a56de4f2c461f05883dfb2b97dadb
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/drrg/README.md
@@ -0,0 +1,34 @@
+# DRRG
+
+> [Deep relational reasoning graph network for arbitrary shape text detection](https://arxiv.org/abs/2003.07493)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Arbitrary shape text detection is a challenging task due to the high variety and complexity of scenes texts. In this paper, we propose a novel unified relational reasoning graph network for arbitrary shape text detection. In our method, an innovative local graph bridges a text proposal model via Convolutional Neural Network (CNN) and a deep relational reasoning network via Graph Convolutional Network (GCN), making our network end-to-end trainable. To be concrete, every text instance will be divided into a series of small rectangular components, and the geometry attributes (e.g., height, width, and orientation) of the small components will be estimated by our text proposal model. Given the geometry attributes, the local graph construction model can roughly establish linkages between different text components. For further reasoning and deducing the likelihood of linkages between the component and its neighbors, we adopt a graph-based network to perform deep relational reasoning on local graphs. Experiments on public available datasets demonstrate the state-of-the-art performance of our method.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142791777-f282300a-fb83-4b5a-a7d4-29f308949f11.png"/>
+</div>
+
+## Results and models
+
+### CTW1500
+
+|                 Method                  |                 BackBone                  | Pretrained Model | Training set  |   Test set   | #epochs | Test size | Precision | Recall | Hmean  |                  Download                  |
+| :-------------------------------------: | :---------------------------------------: | :--------------: | :-----------: | :----------: | :-----: | :-------: | :-------: | :----: | :----: | :----------------------------------------: |
+| [DRRG](/configs/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py) |                 ResNet50                  |        -         | CTW1500 Train | CTW1500 Test |  1200   |    640    |  0.8775   | 0.8179 | 0.8467 | [model](https://download.openmmlab.com/mmocr/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500/drrg_resnet50_fpn-unet_1200e_ctw1500_20220827_105233-d5c702dd.pth) \\ [log](https://download.openmmlab.com/mmocr/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500/20220827_105233.log) |
+| [DRRG_r50-oclip](/configs/textdet/drrg/drrg_resnet50-oclip_fpn-unet_1200e_ctw1500.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |        -         | CTW1500 Train | CTW1500 Test |  1200   |           |           |        |        |          [model](<>) \\ [log](<>)          |
+
+## Citation
+
+```bibtex
+@article{zhang2020drrg,
+  title={Deep relational reasoning graph network for arbitrary shape text detection},
+  author={Zhang, Shi-Xue and Zhu, Xiaobin and Hou, Jie-Bo and Liu, Chang and Yang, Chun and Wang, Hongfa and Yin, Xu-Cheng},
+  booktitle={CVPR},
+  pages={9699-9708},
+  year={2020}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textdet/drrg/_base_drrg_resnet50_fpn-unet.py b/mmocr-dev-1.x/configs/textdet/drrg/_base_drrg_resnet50_fpn-unet.py
new file mode 100644
index 0000000000000000000000000000000000000000..4d6c230d22406f02590241b864d949c6a67f54de
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/drrg/_base_drrg_resnet50_fpn-unet.py
@@ -0,0 +1,92 @@
+model = dict(
+    type='DRRG',
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+        norm_eval=True,
+        style='caffe'),
+    neck=dict(
+        type='FPN_UNet', in_channels=[256, 512, 1024, 2048], out_channels=32),
+    det_head=dict(
+        type='DRRGHead',
+        in_channels=32,
+        text_region_thr=0.3,
+        center_region_thr=0.4,
+        module_loss=dict(type='DRRGModuleLoss'),
+        postprocessor=dict(type='DRRGPostprocessor', link_thr=0.80)),
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_bbox=True,
+        with_polygon=True,
+        with_label=True),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='RandomResize',
+        scale=(800, 800),
+        ratio_range=(0.75, 2.5),
+        keep_ratio=True),
+    dict(
+        type='TextDetRandomCropFlip',
+        crop_ratio=0.5,
+        iter_num=1,
+        min_area_ratio=0.2),
+    dict(
+        type='RandomApply',
+        transforms=[dict(type='RandomCrop', min_side_ratio=0.3)],
+        prob=0.8),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='RandomRotate',
+                max_angle=60,
+                use_canvas=True,
+                pad_with_fixed_color=False)
+        ],
+        prob=0.5),
+    dict(
+        type='RandomChoice',
+        transforms=[[
+            dict(type='Resize', scale=800, keep_ratio=True),
+            dict(type='SourceImagePad', target_scale=800)
+        ],
+                    dict(type='Resize', scale=800, keep_ratio=False)],
+        prob=[0.4, 0.6]),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1024, 640), keep_ratio=True),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/drrg/drrg_resnet50-oclip_fpn-unet_1200e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/drrg/drrg_resnet50-oclip_fpn-unet_1200e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..f7a721ecf9863f1c0ea95ba9a24174c305b30104
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/drrg/drrg_resnet50-oclip_fpn-unet_1200e_ctw1500.py
@@ -0,0 +1,17 @@
+_base_ = [
+    'drrg_resnet50_fpn-unet_1200e_ctw1500.py',
+]
+
+load_from = None
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
+
+param_scheduler = [
+    dict(type='LinearLR', end=100, start_factor=0.001),
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, begin=100, end=1200),
+]
diff --git a/mmocr-dev-1.x/configs/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..c35030997193d2c54b125d540e646c3f1ef9e997
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py
@@ -0,0 +1,30 @@
+_base_ = [
+    '_base_drrg_resnet50_fpn-unet.py',
+    '../_base_/datasets/ctw1500.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+# dataset settings
+ctw1500_textdet_train = _base_.ctw1500_textdet_train
+ctw1500_textdet_train.pipeline = _base_.train_pipeline
+ctw1500_textdet_test = _base_.ctw1500_textdet_test
+ctw1500_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=4,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=ctw1500_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=ctw1500_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/drrg/metafile.yml b/mmocr-dev-1.x/configs/textdet/drrg/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..435a7c43bb6ecfb2d1c1cf162b24bb7edff7c4b5
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/drrg/metafile.yml
@@ -0,0 +1,28 @@
+Collections:
+- Name: DRRG
+  Metadata:
+    Training Data: SCUT-CTW1500
+    Training Techniques:
+      - SGD with Momentum
+    Training Resources: 4x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet
+      - FPN_UNet
+  Paper:
+    URL: https://arxiv.org/abs/2003.07493.pdf
+    Title: 'Deep Relational Reasoning Graph Network for Arbitrary Shape Text Detection'
+  README: configs/textdet/drrg/README.md
+
+Models:
+  - Name: drrg_resnet50_fpn-unet_1200e_ctw1500
+    Alias: DRRG
+    In Collection: DRRG
+    Config: configs/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.8467
+    Weights: https://download.openmmlab.com/mmocr/textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500/drrg_resnet50_fpn-unet_1200e_ctw1500_20220827_105233-d5c702dd.pth
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/README.md b/mmocr-dev-1.x/configs/textdet/fcenet/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..34beec1e27c5b98f9d89e7c6bbe2c9e75ae2fdc5
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/README.md
@@ -0,0 +1,46 @@
+# FCENet
+
+> [Fourier Contour Embedding for Arbitrary-Shaped Text Detection](https://arxiv.org/abs/2104.10442)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+One of the main challenges for arbitrary-shaped text detection is to design a good text instance representation that allows networks to learn diverse text geometry variances. Most of existing methods model text instances in image spatial domain via masks or contour point sequences in the Cartesian or the polar coordinate system. However, the mask representation might lead to expensive post-processing, while the point sequence one may have limited capability to model texts with highly-curved shapes. To tackle these problems, we model text instances in the Fourier domain and propose one novel Fourier Contour Embedding (FCE) method to represent arbitrary shaped text contours as compact signatures. We further construct FCENet with a backbone, feature pyramid networks (FPN) and a simple post-processing with the Inverse Fourier Transformation (IFT) and Non-Maximum Suppression (NMS). Different from previous methods, FCENet first predicts compact Fourier signatures of text instances, and then reconstructs text contours via IFT and NMS during test. Extensive experiments demonstrate that FCE is accurate and robust to fit contours of scene texts even with highly-curved shapes, and also validate the effectiveness and the good generalization of FCENet for arbitrary-shaped text detection. Furthermore, experimental results show that our FCENet is superior to the state-of-the-art (SOTA) methods on CTW1500 and Total-Text, especially on challenging highly-curved text subset.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142791859-1b0ebde4-b151-4c25-ba1b-f354bd8ddc8c.png"/>
+</div>
+
+## Results and models
+
+### CTW1500
+
+|                 Method                 |                 Backbone                  | Pretrained Model | Training set  |   Test set   | #epochs |  Test size  | Precision | Recall | Hmean  |                 Download                  |
+| :------------------------------------: | :---------------------------------------: | :--------------: | :-----------: | :----------: | :-----: | :---------: | :-------: | :----: | :----: | :---------------------------------------: |
+| [FCENet_r50dcn](/configs/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500.py) |             ResNet50 + DCNv2              |        -         | CTW1500 Train | CTW1500 Test |  1500   | (736, 1080) |  0.8689   | 0.8296 | 0.8488 | [model](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500_20220825_221510-4d705392.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500/20220825_221510.log) |
+| [FCENet_r50-oclip](/configs/textdet/fcenet/fcenet_resnet50-oclip-dcnv2_fpn_1500e_ctw1500.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |        -         | CTW1500 Train | CTW1500 Test |  1500   | (736, 1080) |  0.8383   | 0.801  | 0.8192 | [model](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_ctw1500/fcenet_resnet50-oclip_fpn_1500e_ctw1500_20221102_121909-101df7e6.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_ctw1500/20221102_121909.log) |
+
+### ICDAR2015
+
+|                        Method                         |    Backbone    | Pretrained Model | Training set | Test set  | #epochs |  Test size   | Precision | Recall | Hmean  |                         Download                         |
+| :---------------------------------------------------: | :------------: | :--------------: | :----------: | :-------: | :-----: | :----------: | :-------: | :----: | :----: | :------------------------------------------------------: |
+| [FCENet_r50](/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015.py) |    ResNet50    |        -         |  IC15 Train  | IC15 Test |  1500   | (2260, 2260) |  0.8243   | 0.8834 | 0.8528 | [model](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015/fcenet_resnet50_fpn_1500e_icdar2015_20220826_140941-167d9042.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015/20220826_140941.log) |
+| [FCENet_r50-oclip](/configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015.py) | ResNet50-oCLIP |        -         |  IC15 Train  | IC15 Test |  1500   | (2260, 2260) |  0.9176   | 0.8098 | 0.8604 | [model](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015/fcenet_resnet50-oclip_fpn_1500e_icdar2015_20221101_150145-5a6fc412.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015/20221101_150145.log) |
+
+### Total Text
+
+|                        Method                         | Backbone | Pretrained Model |  Training set   |    Test set    | #epochs |  Test size  | Precision | Recall | Hmean  |                        Download                         |
+| :---------------------------------------------------: | :------: | :--------------: | :-------------: | :------------: | :-----: | :---------: | :-------: | :----: | :----: | :-----------------------------------------------------: |
+| [FCENet_r50](/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext.py) | ResNet50 |        -         | Totaltext Train | Totaltext Test |  1500   | (1280, 960) |  0.8485   | 0.7810 | 0.8134 | [model](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext/fcenet_resnet50_fpn_1500e_totaltext-91bd37af.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext/20221219_201107.log) |
+
+## Citation
+
+```bibtex
+@InProceedings{zhu2021fourier,
+      title={Fourier Contour Embedding for Arbitrary-Shaped Text Detection},
+      author={Yiqin Zhu and Jianyong Chen and Lingyu Liang and Zhanghui Kuang and Lianwen Jin and Wayne Zhang},
+      year={2021},
+      booktitle = {CVPR}
+      }
+```
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/_base_fcenet_resnet50-dcnv2_fpn.py b/mmocr-dev-1.x/configs/textdet/fcenet/_base_fcenet_resnet50-dcnv2_fpn.py
new file mode 100644
index 0000000000000000000000000000000000000000..39dd981c21cb07e00ae51527fcc0c31162e705cf
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/_base_fcenet_resnet50-dcnv2_fpn.py
@@ -0,0 +1,16 @@
+_base_ = [
+    '_base_fcenet_resnet50_fpn.py',
+]
+
+model = dict(
+    backbone=dict(
+        norm_eval=True,
+        style='pytorch',
+        dcn=dict(type='DCNv2', deform_groups=2, fallback_on_stride=False),
+        stage_with_dcn=(False, True, True, True)),
+    det_head=dict(
+        module_loss=dict(
+            type='FCEModuleLoss',
+            num_sample=50,
+            level_proportion_range=((0, 0.25), (0.2, 0.65), (0.55, 1.0))),
+        postprocessor=dict(text_repr_type='poly', alpha=1.0, beta=2.0)))
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/_base_fcenet_resnet50_fpn.py b/mmocr-dev-1.x/configs/textdet/fcenet/_base_fcenet_resnet50_fpn.py
new file mode 100644
index 0000000000000000000000000000000000000000..44267d256834a8aa4ae7e6b574f6c87d5a795394
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/_base_fcenet_resnet50_fpn.py
@@ -0,0 +1,106 @@
+model = dict(
+    type='FCENet',
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+        norm_eval=False,
+        style='pytorch'),
+    neck=dict(
+        type='mmdet.FPN',
+        in_channels=[512, 1024, 2048],
+        out_channels=256,
+        add_extra_convs='on_output',
+        num_outs=3,
+        relu_before_extra_convs=True,
+        act_cfg=None),
+    det_head=dict(
+        type='FCEHead',
+        in_channels=256,
+        fourier_degree=5,
+        module_loss=dict(type='FCEModuleLoss', num_sample=50),
+        postprocessor=dict(
+            type='FCEPostprocessor',
+            scales=(8, 16, 32),
+            text_repr_type='quad',
+            num_reconstr_points=50,
+            alpha=1.2,
+            beta=1.0,
+            score_thr=0.3)),
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='RandomResize',
+        scale=(800, 800),
+        ratio_range=(0.75, 2.5),
+        keep_ratio=True),
+    dict(
+        type='TextDetRandomCropFlip',
+        crop_ratio=0.5,
+        iter_num=1,
+        min_area_ratio=0.2),
+    dict(
+        type='RandomApply',
+        transforms=[dict(type='RandomCrop', min_side_ratio=0.3)],
+        prob=0.8),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='RandomRotate',
+                max_angle=30,
+                pad_with_fixed_color=False,
+                use_canvas=True)
+        ],
+        prob=0.5),
+    dict(
+        type='RandomChoice',
+        transforms=[[
+            dict(type='Resize', scale=800, keep_ratio=True),
+            dict(type='SourceImagePad', target_scale=800)
+        ],
+                    dict(type='Resize', scale=800, keep_ratio=False)],
+        prob=[0.6, 0.4]),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5,
+        contrast=0.5),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(2260, 2260), keep_ratio=True),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..9e54bea571e15a485187ae908578ccff625aacf7
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500.py
@@ -0,0 +1,54 @@
+_base_ = [
+    '_base_fcenet_resnet50-dcnv2_fpn.py',
+    '../_base_/datasets/ctw1500.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_base.py',
+]
+
+optim_wrapper = dict(optimizer=dict(lr=1e-3, weight_decay=5e-4))
+train_cfg = dict(max_epochs=1500)
+# learning policy
+param_scheduler = [
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, end=1500),
+]
+
+# dataset settings
+ctw1500_textdet_train = _base_.ctw1500_textdet_train
+ctw1500_textdet_test = _base_.ctw1500_textdet_test
+
+# test pipeline for CTW1500
+ctw_test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1080, 736), keep_ratio=True),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+ctw1500_textdet_train.pipeline = _base_.train_pipeline
+ctw1500_textdet_test.pipeline = ctw_test_pipeline
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=ctw1500_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=ctw1500_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=8)
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..3bc13090fbfffddd01ed5698fcf22d6ad82832ef
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_ctw1500.py
@@ -0,0 +1,16 @@
+_base_ = [
+    'fcenet_resnet50-dcnv2_fpn_1500e_ctw1500.py',
+]
+
+load_from = None
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    out_indices=(1, 2, 3),
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
+
+_base_.train_dataloader.num_workers = 24
+_base_.optim_wrapper.optimizer.lr = 0.0005
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..87d87de5d1ae38deef32dcca42018eeab57cf359
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015.py
@@ -0,0 +1,16 @@
+_base_ = [
+    'fcenet_resnet50_fpn_1500e_icdar2015.py',
+]
+load_from = None
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    out_indices=(1, 2, 3),
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
+
+_base_.train_dataloader.batch_size = 16
+_base_.train_dataloader.num_workers = 24
+_base_.optim_wrapper.optimizer.lr = 0.0005
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..8257a046314dc7d671eb28714e42fb6d70f2b8e0
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015.py
@@ -0,0 +1,37 @@
+_base_ = [
+    '_base_fcenet_resnet50_fpn.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_base.py',
+]
+
+optim_wrapper = dict(optimizer=dict(lr=1e-3, weight_decay=5e-4))
+train_cfg = dict(max_epochs=1500)
+# learning policy
+param_scheduler = [
+    dict(type='PolyLR', power=0.9, eta_min=1e-7, end=1500),
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=8)
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext.py b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext.py
new file mode 100644
index 0000000000000000000000000000000000000000..cc63975e2a86cd8a0fbc6b08adf3d1ccde6e6cf3
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext.py
@@ -0,0 +1,117 @@
+_base_ = [
+    '_base_fcenet_resnet50_fpn.py',
+    '../_base_/datasets/totaltext.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_base.py',
+]
+
+default_hooks = dict(
+    checkpoint=dict(
+        type='CheckpointHook',
+        save_best='icdar/hmean',
+        rule='greater',
+        _delete_=True))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='FixInvalidPolygon'),
+    dict(
+        type='RandomResize',
+        scale=(800, 800),
+        ratio_range=(0.75, 2.5),
+        keep_ratio=True),
+    dict(
+        type='TextDetRandomCropFlip',
+        crop_ratio=0.5,
+        iter_num=1,
+        min_area_ratio=0.2),
+    dict(
+        type='RandomApply',
+        transforms=[dict(type='RandomCrop', min_side_ratio=0.3)],
+        prob=0.8),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='RandomRotate',
+                max_angle=30,
+                pad_with_fixed_color=False,
+                use_canvas=True)
+        ],
+        prob=0.5),
+    dict(
+        type='RandomChoice',
+        transforms=[[
+            dict(type='Resize', scale=800, keep_ratio=True),
+            dict(type='SourceImagePad', target_scale=800)
+        ],
+                    dict(type='Resize', scale=800, keep_ratio=False)],
+        prob=[0.6, 0.4]),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5,
+        contrast=0.5),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1280, 960), keep_ratio=True),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(type='FixInvalidPolygon'),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+optim_wrapper = dict(optimizer=dict(lr=1e-3, weight_decay=5e-4))
+train_cfg = dict(max_epochs=1500)
+# learning policy
+param_scheduler = [
+    dict(type='StepLR', gamma=0.8, step_size=200, end=1200),
+]
+
+# dataset settings
+totaltext_textdet_train = _base_.totaltext_textdet_train
+totaltext_textdet_test = _base_.totaltext_textdet_test
+totaltext_textdet_train.pipeline = train_pipeline
+totaltext_textdet_test.pipeline = test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=16,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=totaltext_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=totaltext_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=16)
+
+find_unused_parameters = True
diff --git a/mmocr-dev-1.x/configs/textdet/fcenet/metafile.yml b/mmocr-dev-1.x/configs/textdet/fcenet/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..7cc6c6b806e75aa3d677e14f119758f3e5932c58
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/fcenet/metafile.yml
@@ -0,0 +1,79 @@
+Collections:
+- Name: FCENet
+  Metadata:
+    Training Data: SCUT-CTW1500
+    Training Techniques:
+      - SGD with Momentum
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet50 with DCNv2
+      - FPN
+      - FCEHead
+  Paper:
+    URL: https://arxiv.org/abs/2002.02709.pdf
+    Title: 'FourierNet: Compact mask representation for instance segmentation using differentiable shape decoders'
+  README: configs/textdet/fcenet/README.md
+
+Models:
+  - Name: fcenet_resnet50-dcnv2_fpn_1500e_ctw1500
+    Alias: FCE_CTW_DCNv2
+    In Collection: FCENet
+    Config: configs/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.8488
+    Weights: https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500/fcenet_resnet50-dcnv2_fpn_1500e_ctw1500_20220825_221510-4d705392.pth
+
+  - Name: fcenet_resnet50-oclip_fpn_1500e_ctw1500
+    In Collection: FCENet
+    Config: configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.8192
+    Weights: https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_ctw1500/fcenet_resnet50-oclip_fpn_1500e_ctw1500_20221102_121909-101df7e6.pth
+
+  - Name: fcenet_resnet50_fpn_1500e_icdar2015
+    Alias: FCE_IC15
+    In Collection: FCENet
+    Config: configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8528
+    Weights: https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50_fpn_1500e_icdar2015/fcenet_resnet50_fpn_1500e_icdar2015_20220826_140941-167d9042.pth
+
+  - Name: fcenet_resnet50-oclip_fpn_1500e_icdar2015
+    Alias: FCENet
+    In Collection: FCENet
+    Config: configs/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8604
+    Weights: https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50-oclip_fpn_1500e_icdar2015/fcenet_resnet50-oclip_fpn_1500e_icdar2015_20221101_150145-5a6fc412.pth
+
+  - Name: fcenet_resnet50_fpn_1500e_totaltext
+    In Collection: FCENet
+    Config: configs/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext.py
+    Metadata:
+      Training Data: Totaltext
+    Results:
+      - Task: Text Detection
+        Dataset: Totaltext
+        Metrics:
+          hmean-iou: 0.8134
+    Weights: https://download.openmmlab.com/mmocr/textdet/fcenet/fcenet_resnet50_fpn_1500e_totaltext/fcenet_resnet50_fpn_1500e_totaltext-91bd37af.pth
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/README.md b/mmocr-dev-1.x/configs/textdet/maskrcnn/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..d520d7370c48f200cdf24fea74d979b57593941e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/README.md
@@ -0,0 +1,41 @@
+# Mask R-CNN
+
+> [Mask R-CNN](https://arxiv.org/abs/1703.06870)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+We present a conceptually simple, flexible, and general framework for object instance segmentation. Our approach efficiently detects objects in an image while simultaneously generating a high-quality segmentation mask for each instance. The method, called Mask R-CNN, extends Faster R-CNN by adding a branch for predicting an object mask in parallel with the existing branch for bounding box recognition. Mask R-CNN is simple to train and adds only a small overhead to Faster R-CNN, running at 5 fps. Moreover, Mask R-CNN is easy to generalize to other tasks, e.g., allowing us to estimate human poses in the same framework. We show top results in all three tracks of the COCO suite of challenges, including instance segmentation, bounding-box object detection, and person keypoint detection. Without bells and whistles, Mask R-CNN outperforms all existing, single-model entries on every task, including the COCO 2016 challenge winners. We hope our simple and effective approach will serve as a solid baseline and help ease future research in instance-level recognition.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142795605-dfdd5f69-e9cd-4b69-9c6b-6d8bded18e89.png"/>
+</div>
+
+## Results and models
+
+### CTW1500
+
+|                 Method                  |                 BackBone                  | Pretrained Model | Training set  |   Test set   | #epochs | Test size | Precision | Recall | Hmean  |                  Download                  |
+| :-------------------------------------: | :---------------------------------------: | :--------------: | :-----------: | :----------: | :-----: | :-------: | :-------: | :----: | :----: | :----------------------------------------: |
+| [MaskRCNN](/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500.py) |                     -                     |        -         | CTW1500 Train | CTW1500 Test |   160   |   1600    |  0.7165   | 0.7776 | 0.7458 | [model](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500/mask-rcnn_resnet50_fpn_160e_ctw1500_20220826_154755-ce68ee8e.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500/20220826_154755.log) |
+| [MaskRCNN_r50-oclip](/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |        -         | CTW1500 Train | CTW1500 Test |   160   |   1600    |   0.753   | 0.7593 | 0.7562 | [model](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500_20221101_154448-6e9e991c.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500/20221101_154448.log) |
+
+### ICDAR2015
+
+|                 Method                 |                 BackBone                 | Pretrained Model |  Training set   |    Test set    | #epochs | Test size | Precision | Recall | Hmean  |                 Download                 |
+| :------------------------------------: | :--------------------------------------: | :--------------: | :-------------: | :------------: | :-----: | :-------: | :-------: | :----: | :----: | :--------------------------------------: |
+| [MaskRCNN](/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015.py) |                 ResNet50                 |        -         | ICDAR2015 Train | ICDAR2015 Test |   160   |   1920    |  0.8644   | 0.7766 | 0.8182 | [model](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015/mask-rcnn_resnet50_fpn_160e_icdar2015_20220826_154808-ff5c30bf.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015/20220826_154808.log) |
+| [MaskRCNN_r50-oclip](/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |        -         | ICDAR2015 Train | ICDAR2015 Test |   160   |   1920    |  0.8695   | 0.8339 | 0.8513 | [model](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015_20221101_131357-a19f7802.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015/20221101_131357.log) |
+
+## Citation
+
+```bibtex
+@INPROCEEDINGS{8237584,
+  author={K. {He} and G. {Gkioxari} and P. {Dollár} and R. {Girshick}},
+  booktitle={2017 IEEE International Conference on Computer Vision (ICCV)},
+  title={Mask R-CNN},
+  year={2017},
+  pages={2980-2988},
+  doi={10.1109/ICCV.2017.322}}
+```
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/_base_mask-rcnn_resnet50_fpn.py b/mmocr-dev-1.x/configs/textdet/maskrcnn/_base_mask-rcnn_resnet50_fpn.py
new file mode 100644
index 0000000000000000000000000000000000000000..be3af65379d45afa3b07c64944d33a7a7e852c0b
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/_base_mask-rcnn_resnet50_fpn.py
@@ -0,0 +1,57 @@
+_base_ = ['mmdet::_base_/models/mask-rcnn_r50_fpn.py']
+
+mask_rcnn = _base_.pop('model')
+# Adapt Mask R-CNN model to OCR task
+mask_rcnn.update(
+    dict(
+        data_preprocessor=dict(pad_mask=False),
+        rpn_head=dict(
+            anchor_generator=dict(
+                scales=[4], ratios=[0.17, 0.44, 1.13, 2.90, 7.46])),
+        roi_head=dict(
+            bbox_head=dict(num_classes=1),
+            mask_head=dict(num_classes=1),
+        )))
+
+model = dict(type='MMDetWrapper', text_repr_type='poly', cfg=mask_rcnn)
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5,
+        contrast=0.5),
+    dict(
+        type='RandomResize',
+        scale=(640, 640),
+        ratio_range=(1.0, 4.125),
+        keep_ratio=True),
+    dict(type='RandomFlip', prob=0.5),
+    dict(type='TextDetRandomCrop', target_size=(640, 640)),
+    dict(type='MMOCR2MMDet', poly2mask=True),
+    dict(
+        type='mmdet.PackDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'flip',
+                   'scale_factor', 'flip_direction'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1920, 1920), keep_ratio=True),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..8abc008a9b46f79a6ec59b471a710ff3179c6f5c
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500.py
@@ -0,0 +1,15 @@
+_base_ = [
+    'mask-rcnn_resnet50_fpn_160e_ctw1500.py',
+]
+
+load_from = None
+
+_base_.model.cfg.backbone = dict(
+    _scope_='mmocr',
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
+
+_base_.optim_wrapper.optimizer.lr = 0.02
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..57bf9b6a8d8383645233729596a5cf419621e281
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015.py
@@ -0,0 +1,15 @@
+_base_ = [
+    'mask-rcnn_resnet50_fpn_160e_icdar2015.py',
+]
+
+load_from = None
+
+_base_.model.cfg.backbone = dict(
+    _scope_='mmocr',
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
+
+_base_.optim_wrapper.optimizer.lr = 0.02
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..547a4212e23e7f3ee188960a7c4858d3bba0d414
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500.py
@@ -0,0 +1,56 @@
+_base_ = [
+    '_base_mask-rcnn_resnet50_fpn.py',
+    '../_base_/datasets/ctw1500.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_base.py',
+]
+
+# optimizer
+optim_wrapper = dict(optimizer=dict(lr=0.08))
+train_cfg = dict(max_epochs=160)
+# learning policy
+param_scheduler = [
+    dict(type='LinearLR', end=500, start_factor=0.001, by_epoch=False),
+    dict(type='MultiStepLR', milestones=[80, 128], end=160),
+]
+
+# dataset settings
+ctw1500_textdet_train = _base_.ctw1500_textdet_train
+ctw1500_textdet_test = _base_.ctw1500_textdet_test
+
+# test pipeline for CTW1500
+ctw_test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1600, 1600), keep_ratio=True),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+ctw1500_textdet_train.pipeline = _base_.train_pipeline
+ctw1500_textdet_test.pipeline = ctw_test_pipeline
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=ctw1500_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=ctw1500_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=8)
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..41509ac17785bcfb93726c16139dd11bddb6020b
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015.py
@@ -0,0 +1,39 @@
+_base_ = [
+    '_base_mask-rcnn_resnet50_fpn.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_base.py',
+]
+
+# optimizer
+optim_wrapper = dict(optimizer=dict(lr=0.08))
+train_cfg = dict(max_epochs=160)
+# learning policy
+param_scheduler = [
+    dict(type='LinearLR', end=500, start_factor=0.001, by_epoch=False),
+    dict(type='MultiStepLR', milestones=[80, 128], end=160),
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=8)
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2017.py b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2017.py
new file mode 100644
index 0000000000000000000000000000000000000000..17bda5a99906829bb5ac2bce560194a459a2d143
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2017.py
@@ -0,0 +1,14 @@
+_base_ = [
+    'mask-rcnn_resnet50_fpn_160e_icdar2015.py',
+    '../_base_/datasets/icdar2017.py',
+]
+
+icdar2017_textdet_train = _base_.icdar2017_textdet_train
+icdar2017_textdet_test = _base_.icdar2017_textdet_test
+# use the same pipeline as icdar2015
+icdar2017_textdet_train.pipeline = _base_.train_pipeline
+icdar2017_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(dataset=icdar2017_textdet_train)
+val_dataloader = dict(dataset=icdar2017_textdet_test)
+test_dataloader = val_dataloader
diff --git a/mmocr-dev-1.x/configs/textdet/maskrcnn/metafile.yml b/mmocr-dev-1.x/configs/textdet/maskrcnn/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..626f059c0986eecec538ad9f7037983e864c75bf
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/maskrcnn/metafile.yml
@@ -0,0 +1,68 @@
+Collections:
+- Name: Mask R-CNN
+  Metadata:
+    Training Data: ICDAR2015 SCUT-CTW1500
+    Training Techniques:
+      - SGD with Momentum
+      - Weight Decay
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet
+      - FPN
+      - RPN
+  Paper:
+    URL: https://arxiv.org/pdf/1703.06870.pdf
+    Title: 'Mask R-CNN'
+  README: configs/textdet/maskrcnn/README.md
+
+Models:
+  - Name: mask-rcnn_resnet50_fpn_160e_ctw1500
+    In Collection: Mask R-CNN
+    Alias: MaskRCNN_CTW
+    Config: configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.7458
+    Weights: https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_ctw1500/mask-rcnn_resnet50_fpn_160e_ctw1500_20220826_154755-ce68ee8e.pth
+
+  - Name: mask-rcnn_resnet50-oclip_fpn_160e_ctw1500
+    In Collection: Mask R-CNN
+    Config: configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.7562
+    Weights: https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500/mask-rcnn_resnet50-oclip_fpn_160e_ctw1500_20221101_154448-6e9e991c.pth
+
+  - Name: mask-rcnn_resnet50_fpn_160e_icdar2015
+    In Collection: Mask R-CNN
+    Alias: MaskRCNN_IC15
+    Config: configs/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8182
+    Weights: https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50_fpn_160e_icdar2015/mask-rcnn_resnet50_fpn_160e_icdar2015_20220826_154808-ff5c30bf.pth
+
+  - Name: mask-rcnn_resnet50-oclip_fpn_160e_icdar2015
+    In Collection: Mask R-CNN
+    Alias: MaskRCNN
+    Config: configs/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8513
+    Weights: https://download.openmmlab.com/mmocr/textdet/maskrcnn/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015/mask-rcnn_resnet50-oclip_fpn_160e_icdar2015_20221101_131357-a19f7802.pth
diff --git a/mmocr-dev-1.x/configs/textdet/panet/README.md b/mmocr-dev-1.x/configs/textdet/panet/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..571539057252e8225c91d5aa4a666e762bc127b0
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/panet/README.md
@@ -0,0 +1,39 @@
+# PANet
+
+> [Efficient and Accurate Arbitrary-Shaped Text Detection with Pixel Aggregation Network](https://arxiv.org/abs/1908.05900)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Scene text detection, an important step of scene text reading systems, has witnessed rapid development with convolutional neural networks. Nonetheless, two main challenges still exist and hamper its deployment to real-world applications. The first problem is the trade-off between speed and accuracy. The second one is to model the arbitrary-shaped text instance. Recently, some methods have been proposed to tackle arbitrary-shaped text detection, but they rarely take the speed of the entire pipeline into consideration, which may fall short in practical this http URL this paper, we propose an efficient and accurate arbitrary-shaped text detector, termed Pixel Aggregation Network (PAN), which is equipped with a low computational-cost segmentation head and a learnable post-processing. More specifically, the segmentation head is made up of Feature Pyramid Enhancement Module (FPEM) and Feature Fusion Module (FFM). FPEM is a cascadable U-shaped module, which can introduce multi-level information to guide the better segmentation. FFM can gather the features given by the FPEMs of different depths into a final feature for segmentation. The learnable post-processing is implemented by Pixel Aggregation (PA), which can precisely aggregate text pixels by predicted similarity vectors. Experiments on several standard benchmarks validate the superiority of the proposed PAN. It is worth noting that our method can achieve a competitive F-measure of 79.9% at 84.2 FPS on CTW1500.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142795741-0e1ea962-1596-47c2-8671-27bbe87d0df8.png"/>
+</div>
+
+## Results and models
+
+### CTW1500
+
+|                            Method                            | Pretrained Model | Training set  |   Test set   | #epochs | Test size | Precision | Recall | Hmean  |                            Download                            |
+| :----------------------------------------------------------: | :--------------: | :-----------: | :----------: | :-----: | :-------: | :-------: | :----: | :----: | :------------------------------------------------------------: |
+| [PANet](/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500.py) |     ImageNet     | CTW1500 Train | CTW1500 Test |   600   |    640    |  0.8208   | 0.7376 | 0.7770 | [model](https://download.openmmlab.com/mmocr/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500/panet_resnet18_fpem-ffm_600e_ctw1500_20220826_144818-980f32d0.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500/20220826_144818.log) |
+
+### ICDAR2015
+
+|                           Method                           | Pretrained Model |  Training set   |    Test set    | #epochs | Test size | Precision | Recall | Hmean  |                           Download                           |
+| :--------------------------------------------------------: | :--------------: | :-------------: | :------------: | :-----: | :-------: | :-------: | :----: | :----: | :----------------------------------------------------------: |
+| [PANet](/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015.py) |     ImageNet     | ICDAR2015 Train | ICDAR2015 Test |   600   |    736    |  0.8455   | 0.7323 | 0.7848 | [model](https://download.openmmlab.com/mmocr/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015/panet_resnet18_fpem-ffm_600e_icdar2015_20220826_144817-be2acdb4.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015/20220826_144817.log) |
+
+## Citation
+
+```bibtex
+@inproceedings{WangXSZWLYS19,
+  author={Wenhai Wang and Enze Xie and Xiaoge Song and Yuhang Zang and Wenjia Wang and Tong Lu and Gang Yu and Chunhua Shen},
+  title={Efficient and Accurate Arbitrary-Shaped Text Detection With Pixel Aggregation Network},
+  booktitle={ICCV},
+  pages={8439--8448},
+  year={2019}
+  }
+```
diff --git a/mmocr-dev-1.x/configs/textdet/panet/_base_panet_resnet18_fpem-ffm.py b/mmocr-dev-1.x/configs/textdet/panet/_base_panet_resnet18_fpem-ffm.py
new file mode 100644
index 0000000000000000000000000000000000000000..49b66da4afec5245883c40116d35e018e8935e71
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/panet/_base_panet_resnet18_fpem-ffm.py
@@ -0,0 +1,77 @@
+# BasicBlock has a little difference from official PANet
+# BasicBlock in mmdet lacks RELU in the last convolution.
+model = dict(
+    type='PANet',
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32),
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=18,
+        num_stages=4,
+        stem_channels=128,
+        deep_stem=True,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_eval=False,
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet18'),
+        style='pytorch'),
+    neck=dict(type='FPEM_FFM', in_channels=[64, 128, 256, 512]),
+    det_head=dict(
+        type='PANHead',
+        in_channels=[128, 128, 128, 128],
+        hidden_dim=128,
+        out_channel=6,
+        module_loss=dict(
+            type='PANModuleLoss',
+            loss_text=dict(type='MaskedSquareDiceLoss'),
+            loss_kernel=dict(type='MaskedSquareDiceLoss'),
+        ),
+        postprocessor=dict(type='PANPostprocessor', text_repr_type='quad')))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='ShortScaleAspectJitter', short_size=736, scale_divisor=32),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(type='RandomRotate', max_angle=10),
+    dict(type='TextDetRandomCrop', target_size=(736, 736)),
+    dict(type='Pad', size=(736, 736)),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    # TODO Replace with mmcv.RescaleToShort when it's ready
+    dict(
+        type='ShortScaleAspectJitter',
+        short_size=736,
+        scale_divisor=1,
+        ratio_range=(1.0, 1.0),
+        aspect_ratio_range=(1.0, 1.0)),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/panet/_base_panet_resnet50_fpem-ffm.py b/mmocr-dev-1.x/configs/textdet/panet/_base_panet_resnet50_fpem-ffm.py
new file mode 100644
index 0000000000000000000000000000000000000000..223d1c9adf25bbc4d59f22e0ef29cb99e61655cc
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/panet/_base_panet_resnet50_fpem-ffm.py
@@ -0,0 +1,18 @@
+_base_ = '_base_panet_resnet18_fpem-ffm.py'
+
+model = dict(
+    type='PANet',
+    backbone=dict(
+        _delete_=True,
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        norm_eval=True,
+        style='caffe',
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+    ),
+    neck=dict(in_channels=[256, 512, 1024, 2048]),
+    det_head=dict(postprocessor=dict(text_repr_type='poly')))
diff --git a/mmocr-dev-1.x/configs/textdet/panet/metafile.yml b/mmocr-dev-1.x/configs/textdet/panet/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..f2f0e9d72850a1930e0e744022560323acf99a06
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/panet/metafile.yml
@@ -0,0 +1,41 @@
+Collections:
+- Name: PANet
+  Metadata:
+    Training Data: ICDAR2015 SCUT-CTW1500
+    Training Techniques:
+      - Adam
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet
+      - FPEM_FFM
+  Paper:
+    URL: https://arxiv.org/pdf/1803.01534.pdf
+    Title: 'Path Aggregation Network for Instance Segmentation'
+  README: configs/textdet/panet/README.md
+
+Models:
+  - Name: panet_resnet18_fpem-ffm_600e_ctw1500
+    Alias: PANet_CTW
+    In Collection: PANet
+    Config: configs/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.7770
+    Weights: https://download.openmmlab.com/mmocr/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500/panet_resnet18_fpem-ffm_600e_ctw1500_20220826_144818-980f32d0.pth
+
+  - Name: panet_resnet18_fpem-ffm_600e_icdar2015
+    Alias: PANet_IC15
+    In Collection: PANet
+    Config: configs/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.7848
+    Weights: https://download.openmmlab.com/mmocr/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015/panet_resnet18_fpem-ffm_600e_icdar2015_20220826_144817-be2acdb4.pth
diff --git a/mmocr-dev-1.x/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..98f28f1a16f9113e9d7c263fae6669e988b56668
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_ctw1500.py
@@ -0,0 +1,79 @@
+_base_ = [
+    '../_base_/datasets/ctw1500.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_600e.py',
+    '_base_panet_resnet18_fpem-ffm.py',
+]
+
+model = dict(det_head=dict(module_loss=dict(shrink_ratio=(1, 0.7))))
+
+default_hooks = dict(checkpoint=dict(type='CheckpointHook', interval=20), )
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='ShortScaleAspectJitter', short_size=640, scale_divisor=32),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(type='RandomRotate', max_angle=10),
+    dict(type='TextDetRandomCrop', target_size=(640, 640)),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    # TODO Replace with mmcv.RescaleToShort when it's ready
+    dict(
+        type='ShortScaleAspectJitter',
+        short_size=640,
+        scale_divisor=1,
+        ratio_range=(1.0, 1.0),
+        aspect_ratio_range=(1.0, 1.0)),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+# dataset settings
+ctw1500_textdet_train = _base_.ctw1500_textdet_train
+ctw1500_textdet_test = _base_.ctw1500_textdet_test
+# pipeline settings
+ctw1500_textdet_train.pipeline = train_pipeline
+ctw1500_textdet_test.pipeline = test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=ctw1500_textdet_train)
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=ctw1500_textdet_test)
+test_dataloader = val_dataloader
+
+val_evaluator = dict(
+    type='HmeanIOUMetric', pred_score_thrs=dict(start=0.3, stop=1, step=0.05))
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=16)
diff --git a/mmocr-dev-1.x/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..1f5bf0e22d13c7bc79c83024a73182ae46cc3ffa
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/panet/panet_resnet18_fpem-ffm_600e_icdar2015.py
@@ -0,0 +1,35 @@
+_base_ = [
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_600e.py',
+    '_base_panet_resnet18_fpem-ffm.py',
+]
+
+default_hooks = dict(checkpoint=dict(type='CheckpointHook', interval=20), )
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+# pipeline settings
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+test_dataloader = val_dataloader
+
+val_evaluator = dict(
+    type='HmeanIOUMetric', pred_score_thrs=dict(start=0.3, stop=1, step=0.05))
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=64)
diff --git a/mmocr-dev-1.x/configs/textdet/panet/panet_resnet50_fpem-ffm_600e_icdar2017.py b/mmocr-dev-1.x/configs/textdet/panet/panet_resnet50_fpem-ffm_600e_icdar2017.py
new file mode 100644
index 0000000000000000000000000000000000000000..d5947bbe5356a63452afa2e078c57293cc2911ef
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/panet/panet_resnet50_fpem-ffm_600e_icdar2017.py
@@ -0,0 +1,74 @@
+_base_ = [
+    '../_base_/datasets/icdar2017.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_600e.py',
+    '_base_panet_resnet50_fpem-ffm.py',
+]
+
+default_hooks = dict(checkpoint=dict(type='CheckpointHook', interval=20), )
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='ShortScaleAspectJitter', short_size=800, scale_divisor=32),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(type='RandomRotate', max_angle=10),
+    dict(type='TextDetRandomCrop', target_size=(800, 800)),
+    dict(type='Pad', size=(800, 800)),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    # TODO Replace with mmcv.RescaleToShort when it's ready
+    dict(
+        type='ShortScaleAspectJitter',
+        short_size=800,
+        scale_divisor=1,
+        ratio_range=(1.0, 1.0),
+        aspect_ratio_range=(1.0, 1.0)),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+icdar2017_textdet_train = _base_.icdar2017_textdet_train
+icdar2017_textdet_test = _base_.icdar2017_textdet_test
+# pipeline settings
+icdar2017_textdet_train.pipeline = train_pipeline
+icdar2017_textdet_test.pipeline = test_pipeline
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2017_textdet_train)
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2017_textdet_test)
+test_dataloader = val_dataloader
+
+val_evaluator = dict(
+    type='HmeanIOUMetric', pred_score_thrs=dict(start=0.3, stop=1, step=0.05))
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=64)
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/README.md b/mmocr-dev-1.x/configs/textdet/psenet/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..b389f71f8b79a31fc6d3f023b8eb31998f775d05
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/README.md
@@ -0,0 +1,41 @@
+# PSENet
+
+> [Shape robust text detection with progressive scale expansion network](https://arxiv.org/abs/1903.12473)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Scene text detection has witnessed rapid progress especially with the recent development of convolutional neural networks. However, there still exists two challenges which prevent the algorithm into industry applications. On the one hand, most of the state-of-art algorithms require quadrangle bounding box which is in-accurate to locate the texts with arbitrary shape. On the other hand, two text instances which are close to each other may lead to a false detection which covers both instances. Traditionally, the segmentation-based approach can relieve the first problem but usually fail to solve the second challenge. To address these two challenges, in this paper, we propose a novel Progressive Scale Expansion Network (PSENet), which can precisely detect text instances with arbitrary shapes. More specifically, PSENet generates the different scale of kernels for each text instance, and gradually expands the minimal scale kernel to the text instance with the complete shape. Due to the fact that there are large geometrical margins among the minimal scale kernels, our method is effective to split the close text instances, making it easier to use segmentation-based methods to detect arbitrary-shaped text instances. Extensive experiments on CTW1500, Total-Text, ICDAR 2015 and ICDAR 2017 MLT validate the effectiveness of PSENet. Notably, on CTW1500, a dataset full of long curve texts, PSENet achieves a F-measure of 74.3% at 27 FPS, and our best F-measure (82.2%) outperforms state-of-art algorithms by 6.6%. The code will be released in the future.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142795864-9b455b10-8a19-45bb-aeaf-4b733f341afc.png"/>
+</div>
+
+## Results and models
+
+### CTW1500
+
+|                 Method                  |                 Backbone                  | Pretrained Model | Training set  |   Test set   | #epochs | Test size | Precision | Recall | Hmean  |                  Download                  |
+| :-------------------------------------: | :---------------------------------------: | :--------------: | :-----------: | :----------: | :-----: | :-------: | :-------: | :----: | :----: | :----------------------------------------: |
+| [PSENet](/configs/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500.py) |                 ResNet50                  |        -         | CTW1500 Train | CTW1500 Test |   600   |   1280    |  0.7705   | 0.7883 | 0.7793 | [model](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500/psenet_resnet50_fpnf_600e_ctw1500_20220825_221459-7f974ac8.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500/20220825_221459.log) |
+| [PSENet_r50-oclip](/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |        -         | CTW1500 Train | CTW1500 Test |   600   |   1280    |  0.8483   | 0.7636 | 0.8037 | [model](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500/psenet_resnet50-oclip_fpnf_600e_ctw1500_20221101_140406-d431710d.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500/20221101_140406.log) |
+
+### ICDAR2015
+
+|                  Method                  |                  Backbone                   | Pretrained Model | Training set | Test set  | #epochs | Test size | Precision | Recall | Hmean  |                  Download                   |
+| :--------------------------------------: | :-----------------------------------------: | :--------------: | :----------: | :-------: | :-----: | :-------: | :-------: | :----: | :----: | :-----------------------------------------: |
+| [PSENet](/configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015.py) |                  ResNet50                   |        -         |  IC15 Train  | IC15 Test |   600   |   2240    |  0.8396   | 0.7636 | 0.7998 | [model](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015/psenet_resnet50_fpnf_600e_icdar2015_20220825_222709-b6741ec3.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015/20220825_222709.log) |
+| [PSENet_r50-oclip](/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |        -         |  IC15 Train  | IC15 Test |   600   |   2240    |  0.8895   | 0.8098 | 0.8478 | [model](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015/psenet_resnet50-oclip_fpnf_600e_icdar2015_20221101_131357-2bdca389.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015/20221101_131357.log) |
+
+## Citation
+
+```bibtex
+@inproceedings{wang2019shape,
+  title={Shape robust text detection with progressive scale expansion network},
+  author={Wang, Wenhai and Xie, Enze and Li, Xiang and Hou, Wenbo and Lu, Tong and Yu, Gang and Shao, Shuai},
+  booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
+  pages={9336--9345},
+  year={2019}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/_base_psenet_resnet50_fpnf.py b/mmocr-dev-1.x/configs/textdet/psenet/_base_psenet_resnet50_fpnf.py
new file mode 100644
index 0000000000000000000000000000000000000000..2a73423b6deedcfc863e0c2b8845e1c3e490dfa9
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/_base_psenet_resnet50_fpnf.py
@@ -0,0 +1,66 @@
+model = dict(
+    type='PSENet',
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='SyncBN', requires_grad=True),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+        norm_eval=True,
+        style='caffe'),
+    neck=dict(
+        type='FPNF',
+        in_channels=[256, 512, 1024, 2048],
+        out_channels=256,
+        fusion_type='concat'),
+    det_head=dict(
+        type='PSEHead',
+        in_channels=[256],
+        hidden_dim=256,
+        out_channel=7,
+        module_loss=dict(type='PSEModuleLoss'),
+        postprocessor=dict(type='PSEPostprocessor', text_repr_type='poly')),
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(type='FixInvalidPolygon'),
+    dict(type='ShortScaleAspectJitter', short_size=736, scale_divisor=32),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(type='RandomRotate', max_angle=10),
+    dict(type='TextDetRandomCrop', target_size=(736, 736)),
+    dict(type='Pad', size=(736, 736)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(2240, 2240), keep_ratio=True),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/metafile.yml b/mmocr-dev-1.x/configs/textdet/psenet/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..bd7a11f0ee13927215c1eeef1084199208cb8f6c
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/metafile.yml
@@ -0,0 +1,67 @@
+Collections:
+- Name: PSENet
+  Metadata:
+    Training Data: ICDAR2015 SCUT-CTW1500
+    Training Techniques:
+      - Adam
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet
+      - FPNF
+      - PSEHead
+  Paper:
+    URL: https://arxiv.org/abs/1806.02559.pdf
+    Title: 'Shape Robust Text Detection with Progressive Scale Expansion Network'
+  README: configs/textdet/psenet/README.md
+
+Models:
+  - Name: psenet_resnet50_fpnf_600e_ctw1500
+    Alias: PS_CTW
+    In Collection: PSENet
+    Config: configs/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.7793
+    Weights: https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500/psenet_resnet50_fpnf_600e_ctw1500_20220825_221459-7f974ac8.pth
+
+  - Name: psenet_resnet50-oclip_fpnf_600e_ctw1500
+    In Collection: PSENet
+    Config: configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.8037
+    Weights: https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500/psenet_resnet50-oclip_fpnf_600e_ctw1500_20221101_140406-d431710d.pth
+
+  - Name: psenet_resnet50_fpnf_600e_icdar2015
+    Alias: PS_IC15
+    In Collection: PSENet
+    Config: configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.7998
+    Weights: https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015/psenet_resnet50_fpnf_600e_icdar2015_20220825_222709-b6741ec3.pth
+
+  - Name: psenet_resnet50-oclip_fpnf_600e_icdar2015
+    Alias: PSENet
+    In Collection: PSENet
+    Config: configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015.py
+    Metadata:
+      Training Data: ICDAR2015
+    Results:
+      - Task: Text Detection
+        Dataset: ICDAR2015
+        Metrics:
+          hmean-iou: 0.8478
+    Weights: https://download.openmmlab.com/mmocr/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015/psenet_resnet50-oclip_fpnf_600e_icdar2015_20221101_131357-2bdca389.pth
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..255e6885e7dc049c9f7e922e869ff9f7b0d63d00
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_ctw1500.py
@@ -0,0 +1,10 @@
+_base_ = [
+    'psenet_resnet50_fpnf_600e_ctw1500.py',
+]
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..9871f98013b11209a76d680d185bdc271b4fdf27
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50-oclip_fpnf_600e_icdar2015.py
@@ -0,0 +1,10 @@
+_base_ = [
+    'psenet_resnet50_fpnf_600e_icdar2015.py',
+]
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..a6d97b99bbcb12008433851356e67b6dcd779b15
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_ctw1500.py
@@ -0,0 +1,52 @@
+_base_ = [
+    '_base_psenet_resnet50_fpnf.py',
+    '../_base_/datasets/ctw1500.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_600e.py',
+]
+
+# optimizer
+optim_wrapper = dict(optimizer=dict(lr=1e-4))
+train_cfg = dict(val_interval=40)
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[200, 400], end=600),
+]
+
+# dataset settings
+ctw1500_textdet_train = _base_.ctw1500_textdet_train
+ctw1500_textdet_test = _base_.ctw1500_textdet_test
+
+test_pipeline_ctw = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1280, 1280), keep_ratio=True),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+# pipeline settings
+ctw1500_textdet_train.pipeline = _base_.train_pipeline
+ctw1500_textdet_test.pipeline = test_pipeline_ctw
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=False,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=ctw1500_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=ctw1500_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=64 * 4)
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015.py b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..d5610c0dd91a0651cd44b1c1839cb810b57a0c5a
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2015.py
@@ -0,0 +1,44 @@
+_base_ = [
+    '_base_psenet_resnet50_fpnf.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_600e.py',
+]
+
+# optimizer
+optim_wrapper = dict(optimizer=dict(lr=1e-4))
+train_cfg = dict(val_interval=40)
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[200, 400], end=600),
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+
+# use quadrilaterals for icdar2015
+model = dict(
+    backbone=dict(style='pytorch'),
+    det_head=dict(postprocessor=dict(text_repr_type='quad')))
+
+# pipeline settings
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=False,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=64 * 4)
diff --git a/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2017.py b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2017.py
new file mode 100644
index 0000000000000000000000000000000000000000..a1bec586e96a51ddf2efa9b74d6b7354d32e8053
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/psenet/psenet_resnet50_fpnf_600e_icdar2017.py
@@ -0,0 +1,16 @@
+_base_ = [
+    'psenet_resnet50_fpnf_600e_icdar2015.py',
+    '../_base_/datasets/icdar2017.py',
+]
+
+icdar2017_textdet_train = _base_.icdar2017_textdet_train
+icdar2017_textdet_test = _base_.icdar2017_textdet_test
+# use the same pipeline as icdar2015
+icdar2017_textdet_train.pipeline = _base_.train_pipeline
+icdar2017_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(dataset=icdar2017_textdet_train)
+val_dataloader = dict(dataset=icdar2017_textdet_test)
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=64 * 4)
diff --git a/mmocr-dev-1.x/configs/textdet/textsnake/README.md b/mmocr-dev-1.x/configs/textdet/textsnake/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..e1cd5d39d08e3f1f5b67e761452245cf0c4d9ef9
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/textsnake/README.md
@@ -0,0 +1,34 @@
+# Textsnake
+
+> [TextSnake: A Flexible Representation for Detecting Text of Arbitrary Shapes](https://arxiv.org/abs/1807.01544)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Driven by deep neural networks and large scale datasets, scene text detection methods have progressed substantially over the past years, continuously refreshing the performance records on various standard benchmarks. However, limited by the representations (axis-aligned rectangles, rotated rectangles or quadrangles) adopted to describe text, existing methods may fall short when dealing with much more free-form text instances, such as curved text, which are actually very common in real-world scenarios. To tackle this problem, we propose a more flexible representation for scene text, termed as TextSnake, which is able to effectively represent text instances in horizontal, oriented and curved forms. In TextSnake, a text instance is described as a sequence of ordered, overlapping disks centered at symmetric axes, each of which is associated with potentially variable radius and orientation. Such geometry attributes are estimated via a Fully Convolutional Network (FCN) model. In experiments, the text detector based on TextSnake achieves state-of-the-art or comparable performance on Total-Text and SCUT-CTW1500, the two newly published benchmarks with special emphasis on curved text in natural images, as well as the widely-used datasets ICDAR 2015 and MSRA-TD500. Specifically, TextSnake outperforms the baseline on Total-Text by more than 40% in F-measure.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142795949-2525ead4-865b-4762-baaa-e977cfd6ac66.png"/>
+</div>
+
+## Results and models
+
+### CTW1500
+
+|                 Method                  |                 BackBone                  | Pretrained Model | Training set  |   Test set   | #epochs | Test size | Precision | Recall | Hmean  |                  Download                  |
+| :-------------------------------------: | :---------------------------------------: | :--------------: | :-----------: | :----------: | :-----: | :-------: | :-------: | :----: | :----: | :----------------------------------------: |
+| [TextSnake](/configs/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500.py) |                 ResNet50                  |        -         | CTW1500 Train | CTW1500 Test |  1200   |    736    |  0.8535   | 0.8052 | 0.8286 | [model](https://download.openmmlab.com/mmocr/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500/textsnake_resnet50_fpn-unet_1200e_ctw1500_20220825_221459-c0b6adc4.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500/20220825_221459.log) |
+| [TextSnake_r50-oclip](/configs/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500.py) | [ResNet50-oCLIP](https://download.openmmlab.com/mmocr/backbone/resnet50-oclip-7ba0c533.pth) |        -         | CTW1500 Train | CTW1500 Test |  1200   |    736    |  0.8869   | 0.8215 | 0.8529 | [model](https://download.openmmlab.com/mmocr/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500_20221101_134814-a216e5b2.pth) \| [log](https://download.openmmlab.com/mmocr/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500/20221101_134814.log) |
+
+## Citation
+
+```bibtex
+@article{long2018textsnake,
+  title={TextSnake: A Flexible Representation for Detecting Text of Arbitrary Shapes},
+  author={Long, Shangbang and Ruan, Jiaqiang and Zhang, Wenjie and He, Xin and Wu, Wenhao and Yao, Cong},
+  booktitle={ECCV},
+  pages={20-36},
+  year={2018}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textdet/textsnake/_base_textsnake_resnet50_fpn-unet.py b/mmocr-dev-1.x/configs/textdet/textsnake/_base_textsnake_resnet50_fpn-unet.py
new file mode 100644
index 0000000000000000000000000000000000000000..f1586d61f9886bcb08fe43c95764f944dfd3e099
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/textsnake/_base_textsnake_resnet50_fpn-unet.py
@@ -0,0 +1,82 @@
+model = dict(
+    type='TextSnake',
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+        norm_eval=True,
+        style='caffe'),
+    neck=dict(
+        type='FPN_UNet', in_channels=[256, 512, 1024, 2048], out_channels=32),
+    det_head=dict(
+        type='TextSnakeHead',
+        in_channels=32,
+        module_loss=dict(type='TextSnakeModuleLoss'),
+        postprocessor=dict(
+            type='TextSnakePostprocessor', text_repr_type='poly')),
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_bbox=True,
+        with_polygon=True,
+        with_label=True),
+    dict(
+        type='TorchVisionWrapper',
+        op='ColorJitter',
+        brightness=32.0 / 255,
+        saturation=0.5),
+    dict(
+        type='RandomApply',
+        transforms=[dict(type='RandomCrop', min_side_ratio=0.3)],
+        prob=0.65),
+    dict(
+        type='RandomRotate',
+        max_angle=20,
+        pad_with_fixed_color=False,
+        use_canvas=True),
+    dict(
+        type='BoundedScaleAspectJitter',
+        long_size_bound=800,
+        short_size_bound=480,
+        ratio_range=(0.7, 1.3),
+        aspect_ratio_range=(0.9, 1.1)),
+    dict(
+        type='RandomChoice',
+        transforms=[[
+            dict(type='Resize', scale=800, keep_ratio=True),
+            dict(type='SourceImagePad', target_scale=800)
+        ],
+                    dict(type='Resize', scale=800, keep_ratio=False)],
+        prob=[0.4, 0.6]),
+    dict(type='RandomFlip', prob=0.5, direction='horizontal'),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(1333, 736), keep_ratio=True),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/configs/textdet/textsnake/metafile.yml b/mmocr-dev-1.x/configs/textdet/textsnake/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..cdb69fbe0c18c0147f0df5afef03bfe66f02cb00
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/textsnake/metafile.yml
@@ -0,0 +1,40 @@
+Collections:
+- Name: TextSnake
+  Metadata:
+    Training Data: SCUT-CTW1500
+    Training Techniques:
+      - SGD with Momentum
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet
+      - FPN_UNet
+  Paper:
+    URL: https://arxiv.org/abs/1807.01544.pdf
+    Title: 'TextSnake: A Flexible Representation for Detecting Text of Arbitrary Shapes'
+  README: configs/textdet/textsnake/README.md
+
+Models:
+  - Name: textsnake_resnet50_fpn-unet_1200e_ctw1500
+    In Collection: TextSnake
+    Config: configs/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.8286
+    Weights: https://download.openmmlab.com/mmocr/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500/textsnake_resnet50_fpn-unet_1200e_ctw1500_20220825_221459-c0b6adc4.pth
+
+  - Name: textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500
+    Alias: TextSnake
+    In Collection: TextSnake
+    Config: configs/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500.py
+    Metadata:
+      Training Data: CTW1500
+    Results:
+      - Task: Text Detection
+        Dataset: CTW1500
+        Metrics:
+          hmean-iou: 0.8529
+    Weights: https://download.openmmlab.com/mmocr/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500_20221101_134814-a216e5b2.pth
diff --git a/mmocr-dev-1.x/configs/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..3c7142e427351d5b9294bd8df0184613ef34cdd6
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/textsnake/textsnake_resnet50-oclip_fpn-unet_1200e_ctw1500.py
@@ -0,0 +1,10 @@
+_base_ = [
+    'textsnake_resnet50_fpn-unet_1200e_ctw1500.py',
+]
+
+_base_.model.backbone = dict(
+    type='CLIPResNet',
+    init_cfg=dict(
+        type='Pretrained',
+        checkpoint='https://download.openmmlab.com/'
+        'mmocr/backbone/resnet50-oclip-7ba0c533.pth'))
diff --git a/mmocr-dev-1.x/configs/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500.py b/mmocr-dev-1.x/configs/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500.py
new file mode 100644
index 0000000000000000000000000000000000000000..5e3158630bc047172ce50dc27ba23faf2f1606f1
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textdet/textsnake/textsnake_resnet50_fpn-unet_1200e_ctw1500.py
@@ -0,0 +1,30 @@
+_base_ = [
+    '_base_textsnake_resnet50_fpn-unet.py',
+    '../_base_/datasets/ctw1500.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+# dataset settings
+ctw1500_textdet_train = _base_.ctw1500_textdet_train
+ctw1500_textdet_train.pipeline = _base_.train_pipeline
+ctw1500_textdet_test = _base_.ctw1500_textdet_test
+ctw1500_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=4,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=ctw1500_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=ctw1500_textdet_test)
+
+test_dataloader = val_dataloader
+
+auto_scale_lr = dict(base_batch_size=4)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/coco_text_v1.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/coco_text_v1.py
new file mode 100644
index 0000000000000000000000000000000000000000..b88bcd3d391ad73b0db5ae49fa36dbb04af06761
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/coco_text_v1.py
@@ -0,0 +1,8 @@
+cocotextv1_textrecog_data_root = 'data/rec/coco_text_v1'
+
+cocotextv1_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=cocotextv1_textrecog_data_root,
+    ann_file='train_labels.json',
+    test_mode=False,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/cute80.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/cute80.py
new file mode 100644
index 0000000000000000000000000000000000000000..7e3a6fad84bc121209f9c6d3042f5cee3dc89f6b
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/cute80.py
@@ -0,0 +1,8 @@
+cute80_textrecog_data_root = '../data/common_benchmarks/CUTE80'
+
+cute80_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=cute80_textrecog_data_root,
+    ann_file='annotation.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2011.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2011.py
new file mode 100644
index 0000000000000000000000000000000000000000..6071c251cd7e3e0ea7fcbcf190262526b9bff910
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2011.py
@@ -0,0 +1,8 @@
+icdar2011_textrecog_data_root = 'data/rec/icdar_2011/'
+
+icdar2011_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=icdar2011_textrecog_data_root,
+    ann_file='train_labels.json',
+    test_mode=False,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2013.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2013.py
new file mode 100644
index 0000000000000000000000000000000000000000..e3756f0cf3deb98900fcd2fde61c43b9e7c0ad45
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2013.py
@@ -0,0 +1,21 @@
+icdar2013_textrecog_data_root = '../data/common_benchmarks/IC13'
+
+icdar2013_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=icdar2013_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+icdar2013_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2013_textrecog_data_root,
+    ann_file='annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+icdar2013_857_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2013_textrecog_data_root,
+    ann_file='textrecog_test_857.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2015.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..b6ed92d7a54d0757c0afbbea891acf59a2daf137
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/icdar2015.py
@@ -0,0 +1,21 @@
+icdar2015_textrecog_data_root = '../data/common_benchmarks/IC15'
+
+icdar2015_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+icdar2015_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+icdar2015_1811_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_test_1811.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/iiit5k.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/iiit5k.py
new file mode 100644
index 0000000000000000000000000000000000000000..11d1183955e893585323321ca0a23bb655074715
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/iiit5k.py
@@ -0,0 +1,14 @@
+iiit5k_textrecog_data_root = '../data/common_benchmarks/IIIT5K'
+
+iiit5k_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=iiit5k_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+iiit5k_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=iiit5k_textrecog_data_root,
+    ann_file='annotation.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/mjsynth.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/mjsynth.py
new file mode 100644
index 0000000000000000000000000000000000000000..defe84a8db4e2e7341f6c386c2f72560be045a2e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/mjsynth.py
@@ -0,0 +1,13 @@
+mjsynth_textrecog_data_root = 'data/mjsynth'
+
+mjsynth_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=mjsynth_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+mjsynth_sub_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=mjsynth_textrecog_data_root,
+    ann_file='subset_textrecog_train.json',
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/svt.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/svt.py
new file mode 100644
index 0000000000000000000000000000000000000000..60dbd7a19808d074212d8973d8cb78b879e8b841
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/svt.py
@@ -0,0 +1,14 @@
+svt_textrecog_data_root = '../data/common_benchmarks/SVT'
+
+svt_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=svt_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+svt_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=svt_textrecog_data_root,
+    ann_file='annotation.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/svtp.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/svtp.py
new file mode 100644
index 0000000000000000000000000000000000000000..38301d1bb8de9b056e4cd0bcaf16d86200cd4a7d
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/svtp.py
@@ -0,0 +1,14 @@
+svtp_textrecog_data_root = '../data/common_benchmarks/SVTP'
+
+svtp_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=svtp_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+svtp_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=svtp_textrecog_data_root,
+    ann_file='annotation.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/synthtext.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/synthtext.py
new file mode 100644
index 0000000000000000000000000000000000000000..94fc3049b3a1832ccff20571a7b7fda88383b767
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/synthtext.py
@@ -0,0 +1,19 @@
+synthtext_textrecog_data_root = 'data/synthtext'
+
+synthtext_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=synthtext_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+synthtext_sub_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=synthtext_textrecog_data_root,
+    ann_file='subset_textrecog_train.json',
+    pipeline=None)
+
+synthtext_an_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=synthtext_textrecog_data_root,
+    ann_file='alphanumeric_textrecog_train.json',
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/synthtext_add.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/synthtext_add.py
new file mode 100644
index 0000000000000000000000000000000000000000..f31e41f6e58712c0521abf03617a47a138c1f4fb
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/synthtext_add.py
@@ -0,0 +1,8 @@
+synthtext_add_textrecog_data_root = 'data/rec/synthtext_add/'
+
+synthtext_add_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=synthtext_add_textrecog_data_root,
+    ann_file='train_labels.json',
+    test_mode=False,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/totaltext.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/totaltext.py
new file mode 100644
index 0000000000000000000000000000000000000000..07743439b1dcb688b7bcf5c918609d4e018bc4b7
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/totaltext.py
@@ -0,0 +1,15 @@
+totaltext_textrecog_data_root = 'data/totaltext/'
+
+totaltext_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=totaltext_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    test_mode=False,
+    pipeline=None)
+
+totaltext_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=totaltext_textrecog_data_root,
+    ann_file='textrecog_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/toy_data.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/toy_data.py
new file mode 100755
index 0000000000000000000000000000000000000000..ca73d196184cf59d076327100cdafe1503a92b9e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/toy_data.py
@@ -0,0 +1,17 @@
+toy_data_root = 'tests/data/rec_toy_dataset/'
+
+toy_rec_train = dict(
+    type='OCRDataset',
+    data_root=toy_data_root,
+    data_prefix=dict(img_path='imgs/'),
+    ann_file='labels.json',
+    pipeline=None,
+    test_mode=False)
+
+toy_rec_test = dict(
+    type='OCRDataset',
+    data_root=toy_data_root,
+    data_prefix=dict(img_path='imgs/'),
+    ann_file='labels.json',
+    pipeline=None,
+    test_mode=True)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/union14m_benchmark.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/union14m_benchmark.py
new file mode 100644
index 0000000000000000000000000000000000000000..cbcc26b86e2291057eb97cd5a6b8c6a869a89e89
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/union14m_benchmark.py
@@ -0,0 +1,65 @@
+union14m_root = '../data/Union14M-L/'
+union14m_benchmark_root = '../data/Union14M-L/Union14M-Benchmarks'
+
+union14m_benchmark_artistic = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/artistic'),
+    ann_file=f'{union14m_benchmark_root}/artistic/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_contextless = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/contextless'),
+    ann_file=f'{union14m_benchmark_root}/contextless/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_curve = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/curve'),
+    ann_file=f'{union14m_benchmark_root}/curve/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_incomplete = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/incomplete'),
+    ann_file=f'{union14m_benchmark_root}/incomplete/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_incomplete_ori = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/incomplete_ori'),
+    ann_file=f'{union14m_benchmark_root}/incomplete_ori/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_multi_oriented = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/multi_oriented'),
+    ann_file=f'{union14m_benchmark_root}/multi_oriented/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_multi_words = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/multi_words'),
+    ann_file=f'{union14m_benchmark_root}/multi_words/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_salient = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_benchmark_root}/salient'),
+    ann_file=f'{union14m_benchmark_root}/salient/annotation.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_benchmark_general = dict(
+    type='OCRDataset',
+    data_prefix=dict(img_path=f'{union14m_root}/'),
+    ann_file=f'{union14m_benchmark_root}/general/annotation.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/datasets/union14m_train.py b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/union14m_train.py
new file mode 100644
index 0000000000000000000000000000000000000000..e0ec77c07fc1aa2c7a9921e3693966a0818e3392
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/datasets/union14m_train.py
@@ -0,0 +1,38 @@
+union14m_data_root = '../data/Union14M-L/'
+
+union14m_challenging = dict(
+    type='OCRDataset',
+    data_root=union14m_data_root,
+    ann_file='train_annos/mmocr1.0/train_challenging.json',
+    test_mode=True,
+    pipeline=None)
+
+union14m_hard = dict(
+    type='OCRDataset',
+    data_root=union14m_data_root,
+    ann_file='train_annos/mmocr1.0/train_hard.json',
+    pipeline=None)
+
+union14m_medium = dict(
+    type='OCRDataset',
+    data_root=union14m_data_root,
+    ann_file='train_annos/mmocr1.0/train_medium.json',
+    pipeline=None)
+
+union14m_normal = dict(
+    type='OCRDataset',
+    data_root=union14m_data_root,
+    ann_file='train_annos/mmocr1.0/train_normal.json',
+    pipeline=None)
+
+union14m_easy = dict(
+    type='OCRDataset',
+    data_root=union14m_data_root,
+    ann_file='train_annos/mmocr1.0/train_easy.json',
+    pipeline=None)
+
+union14m_val = dict(
+    type='OCRDataset',
+    data_root=union14m_data_root,
+    ann_file='train_annos/mmocr1.0/val_annos.json',
+    pipeline=None)
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/default_runtime.py b/mmocr-dev-1.x/configs/textrecog/_base_/default_runtime.py
new file mode 100644
index 0000000000000000000000000000000000000000..f3ce4e1a43a0811db084ccfdc6787761fb62b13b
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/default_runtime.py
@@ -0,0 +1,50 @@
+default_scope = 'mmocr'
+env_cfg = dict(
+    cudnn_benchmark=False,
+    mp_cfg=dict(mp_start_method='fork', opencv_num_threads=0),
+    dist_cfg=dict(backend='nccl'),
+)
+randomness = dict(seed=None)
+
+default_hooks = dict(
+    timer=dict(type='IterTimerHook'),
+    logger=dict(type='LoggerHook', interval=100),
+    param_scheduler=dict(type='ParamSchedulerHook'),
+    checkpoint=dict(type='CheckpointHook', interval=1),
+    sampler_seed=dict(type='DistSamplerSeedHook'),
+    sync_buffer=dict(type='SyncBuffersHook'),
+    visualization=dict(
+        type='VisualizationHook',
+        interval=1,
+        enable=False,
+        show=False,
+        draw_gt=False,
+        draw_pred=False),
+)
+# Logging
+log_level = 'INFO'
+log_processor = dict(type='LogProcessor', window_size=10, by_epoch=True)
+
+load_from = None
+resume = False
+
+# Evaluation
+val_evaluator = dict(
+    type='MultiDatasetsEvaluator',
+    metrics=[
+        dict(
+            type='WordMetric',
+            mode=['exact', 'ignore_case', 'ignore_case_symbol']),
+        dict(type='CharMetric')
+    ],
+    dataset_prefixes=None)
+test_evaluator = val_evaluator
+
+# Visualization
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextRecogLocalVisualizer',
+    name='visualizer',
+    vis_backends=vis_backends)
+
+tta_model = dict(type='EncoderDecoderRecognizerTTAModel')
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adadelta_5e.py b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adadelta_5e.py
new file mode 100644
index 0000000000000000000000000000000000000000..465072eb3746670a6bfe5077733a5cd8bf635766
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adadelta_5e.py
@@ -0,0 +1,9 @@
+optim_wrapper = dict(
+    type='OptimWrapper', optimizer=dict(type='Adadelta', lr=1.0))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=5, val_interval=1)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning rate
+param_scheduler = [
+    dict(type='ConstantLR', factor=1.0),
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adam_base.py b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adam_base.py
new file mode 100644
index 0000000000000000000000000000000000000000..744f32858e0fdf2722472e3f467444f5ffdd9577
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adam_base.py
@@ -0,0 +1,13 @@
+# Note: This schedule config serves as a base config for other schedules.
+# Users would have to at least fill in "max_epochs" and "val_interval"
+# in order to use this config in their experiments.
+
+# optimizer
+optim_wrapper = dict(type='OptimWrapper', optimizer=dict(type='Adam', lr=3e-4))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=None, val_interval=1)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning policy
+param_scheduler = [
+    dict(type='ConstantLR', factor=1.0),
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adam_step_5e.py b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adam_step_5e.py
new file mode 100644
index 0000000000000000000000000000000000000000..73aad763608c78fa5c818ddc557b12f9f34056c8
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adam_step_5e.py
@@ -0,0 +1,9 @@
+# optimizer
+optim_wrapper = dict(type='OptimWrapper', optimizer=dict(type='Adam', lr=1e-3))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=5, val_interval=1)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning policy
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[3, 4], end=5),
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adamw_cos_10e.py b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adamw_cos_10e.py
new file mode 100644
index 0000000000000000000000000000000000000000..4f5c32a3236e5d5000a020c2460991986d61e261
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adamw_cos_10e.py
@@ -0,0 +1,21 @@
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(
+        type='AdamW',
+        lr=4e-4,
+        betas=(0.9, 0.999),
+        eps=1e-08,
+        weight_decay=0.01))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=10, val_interval=1)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+# learning policy
+param_scheduler = [
+    dict(
+        type='CosineAnnealingLR',
+        T_max=10,
+        eta_min=4e-6,
+        convert_to_iter_based=True)
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adamw_cos_6e.py b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adamw_cos_6e.py
new file mode 100644
index 0000000000000000000000000000000000000000..cd9d29323583c5db51fa3fc8aba2e2aa3a0ed618
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/_base_/schedules/schedule_adamw_cos_6e.py
@@ -0,0 +1,21 @@
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(
+        type='AdamW',
+        lr=4e-4,
+        betas=(0.9, 0.999),
+        eps=1e-08,
+        weight_decay=0.05))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=6, val_interval=1)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+# learning policy
+param_scheduler = [
+    dict(
+        type='CosineAnnealingLR',
+        T_max=6,
+        eta_min=4e-6,
+        convert_to_iter_based=True)
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/abinet/README.md b/mmocr-dev-1.x/configs/textrecog/abinet/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..6a7faadb37d17699123c15184d63f7afcb73dc55
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/abinet/README.md
@@ -0,0 +1,59 @@
+# ABINet
+
+> [Read Like Humans: Autonomous, Bidirectional and Iterative Language Modeling for Scene Text Recognition](https://arxiv.org/abs/2103.06495)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Linguistic knowledge is of great benefit to scene text recognition. However, how to effectively model linguistic rules in end-to-end deep networks remains a research challenge. In this paper, we argue that the limited capacity of language models comes from: 1) implicitly language modeling; 2) unidirectional feature representation; and 3) language model with noise input. Correspondingly, we propose an autonomous, bidirectional and iterative ABINet for scene text recognition. Firstly, the autonomous suggests to block gradient flow between vision and language models to enforce explicitly language modeling. Secondly, a novel bidirectional cloze network (BCN) as the language model is proposed based on bidirectional feature representation. Thirdly, we propose an execution manner of iterative correction for language model which can effectively alleviate the impact of noise input. Additionally, based on the ensemble of iterative predictions, we propose a self-training method which can learn from unlabeled images effectively. Extensive experiments indicate that ABINet has superiority on low-quality images and achieves state-of-the-art results on several mainstream benchmarks. Besides, the ABINet trained with ensemble self-training shows promising improvement in realizing human-level recognition.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/145804331-9ae955dc-0d3b-41eb-a6b2-dc7c9f7c1bef.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+| trainset  | instance_num | repeat_num |     note     |
+| :-------: | :----------: | :--------: | :----------: |
+|  Syn90k   |   8919273    |     1      |    synth     |
+| SynthText |   7239272    |     1      | alphanumeric |
+
+### Test Dataset
+
+| testset | instance_num |   note    |
+| :-----: | :----------: | :-------: |
+| IIIT5K  |     3000     |  regular  |
+|   SVT   |     647      |  regular  |
+|  IC13   |     1015     |  regular  |
+|  IC15   |     2077     | irregular |
+|  SVTP   |     645      | irregular |
+|  CT80   |     288      | irregular |
+
+## Results and models
+
+|                    methods                     |                     pretrained                     |        | Regular Text |           |           | Irregular Text |        | download                                         |
+| :--------------------------------------------: | :------------------------------------------------: | :----: | :----------: | :-------: | :-------: | :------------: | :----: | :----------------------------------------------- |
+|                                                |                                                    | IIIT5K |     SVT      | IC13-1015 | IC15-2077 |      SVTP      |  CT80  |                                                  |
+| [ABINet-Vision](/configs/textrecog/abinet/abinet-vision_20e_st-an_mj.py) |                         -                          | 0.9523 |    0.9196    |  0.9369   |  0.7896   |     0.8403     | 0.8437 | [model](https://download.openmmlab.com/mmocr/textrecog/abinet/abinet-vision_20e_st-an_mj/abinet-vision_20e_st-an_mj_20220915_152445-85cfb03d.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/abinet/abinet-vision_20e_st-an_mj/20220915_152445.log) |
+| [ABINet-Vision-TTA](/configs/textrecog/abinet/abinet-vision_20e_st-an_mj.py) |                         -                          | 0.9523 |    0.9196    |  0.9360   |  0.8175   |     0.8450     | 0.8542 |                                                  |
+| [ABINet](/configs/textrecog/abinet/abinet_20e_st-an_mj.py) | [Pretrained](https://download.openmmlab.com/mmocr/textrecog/abinet/abinet_pretrain-45deac15.pth) | 0.9603 |    0.9397    |  0.9557   |  0.8146   |     0.8868     | 0.8785 | [model](https://download.openmmlab.com/mmocr/textrecog/abinet/abinet_20e_st-an_mj/abinet_20e_st-an_mj_20221005_012617-ead8c139.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/abinet/abinet_20e_st-an_mj/20221005_012617.log) |
+| [ABINet-TTA](/configs/textrecog/abinet/abinet_20e_st-an_mj.py) | [Pretrained](https://download.openmmlab.com/mmocr/textrecog/abinet/abinet_pretrain-45deac15.pth) | 0.9597 |    0.9397    |  0.9527   |  0.8426   |     0.8930     | 0.8854 |                                                  |
+
+```{note}
+1. ABINet allows its encoder to run and be trained without decoder and fuser. Its encoder is designed to recognize texts as a stand-alone model and therefore can work as an independent text recognizer. We release it as ABINet-Vision.
+2. Facts about the pretrained model: MMOCR does not have a systematic pipeline to pretrain the language model (LM) yet, thus the weights of LM are converted from [the official pretrained model](https://github.com/FangShancheng/ABINet). The weights of ABINet-Vision are directly used as the vision model of ABINet.
+```
+
+## Citation
+
+```bibtex
+@article{fang2021read,
+  title={Read Like Humans: Autonomous, Bidirectional and Iterative Language Modeling for Scene Text Recognition},
+  author={Fang, Shancheng and Xie, Hongtao and Wang, Yuxin and Mao, Zhendong and Zhang, Yongdong},
+    booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
+  year={2021}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/abinet/_base_abinet-vision.py b/mmocr-dev-1.x/configs/textrecog/abinet/_base_abinet-vision.py
new file mode 100644
index 0000000000000000000000000000000000000000..b43736b413990fda8ea421e55956d329063ef98c
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/abinet/_base_abinet-vision.py
@@ -0,0 +1,159 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/lower_english_digits.txt',
+    with_start=True,
+    with_end=True,
+    same_start_end=True,
+    with_padding=False,
+    with_unknown=False)
+
+model = dict(
+    type='ABINet',
+    backbone=dict(type='ResNetABI'),
+    encoder=dict(
+        type='ABIEncoder',
+        n_layers=3,
+        n_head=8,
+        d_model=512,
+        d_inner=2048,
+        dropout=0.1,
+        max_len=8 * 32,
+    ),
+    decoder=dict(
+        type='ABIFuser',
+        vision_decoder=dict(
+            type='ABIVisionDecoder',
+            in_channels=512,
+            num_channels=64,
+            attn_height=8,
+            attn_width=32,
+            attn_mode='nearest',
+            init_cfg=dict(type='Xavier', layer='Conv2d')),
+        module_loss=dict(type='ABIModuleLoss', letter_case='lower'),
+        postprocessor=dict(type='AttentionPostprocessor'),
+        dictionary=dictionary,
+        max_seq_len=26,
+    ),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=2),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(type='Resize', scale=(128, 32)),
+    dict(
+        type='RandomApply',
+        prob=0.5,
+        transforms=[
+            dict(
+                type='RandomChoice',
+                transforms=[
+                    dict(
+                        type='RandomRotate',
+                        max_angle=15,
+                    ),
+                    dict(
+                        type='TorchVisionWrapper',
+                        op='RandomAffine',
+                        degrees=15,
+                        translate=(0.3, 0.3),
+                        scale=(0.5, 2.),
+                        shear=(-45, 45),
+                    ),
+                    dict(
+                        type='TorchVisionWrapper',
+                        op='RandomPerspective',
+                        distortion_scale=0.5,
+                        p=1,
+                    ),
+                ])
+        ],
+    ),
+    dict(
+        type='RandomApply',
+        prob=0.25,
+        transforms=[
+            dict(type='PyramidRescale'),
+            dict(
+                type='mmdet.Albu',
+                transforms=[
+                    dict(type='GaussNoise', var_limit=(20, 20), p=0.5),
+                    dict(type='MotionBlur', blur_limit=7, p=0.5),
+                ]),
+        ]),
+    dict(
+        type='RandomApply',
+        prob=0.25,
+        transforms=[
+            dict(
+                type='TorchVisionWrapper',
+                op='ColorJitter',
+                brightness=0.5,
+                saturation=0.5,
+                contrast=0.5,
+                hue=0.1),
+        ]),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='Resize', scale=(128, 32)),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [dict(type='Resize', scale=(128, 32))],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/abinet/_base_abinet.py b/mmocr-dev-1.x/configs/textrecog/abinet/_base_abinet.py
new file mode 100644
index 0000000000000000000000000000000000000000..f2c3d8a37d1d57bb0c4c2666998fe239304c65d1
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/abinet/_base_abinet.py
@@ -0,0 +1,16 @@
+_base_ = '_base_abinet-vision.py'
+
+model = dict(
+    decoder=dict(
+        d_model=512,
+        num_iters=3,
+        language_decoder=dict(
+            type='ABILanguageDecoder',
+            d_model=512,
+            n_head=8,
+            d_inner=2048,
+            n_layers=4,
+            dropout=0.1,
+            detach_tokens=True,
+            use_self_attn=False,
+        )), )
diff --git a/mmocr-dev-1.x/configs/textrecog/abinet/abinet-vision_20e_st-an_mj.py b/mmocr-dev-1.x/configs/textrecog/abinet/abinet-vision_20e_st-an_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..f6785a397a23e530909b41695431668b3b76785e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/abinet/abinet-vision_20e_st-an_mj.py
@@ -0,0 +1,61 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+    '_base_abinet-vision.py',
+]
+
+optim_wrapper = dict(optimizer=dict(lr=1e-4))
+train_cfg = dict(max_epochs=20)
+# learning policy
+param_scheduler = [
+    dict(
+        type='LinearLR', end=2, start_factor=0.001,
+        convert_to_iter_based=True),
+    dict(type='MultiStepLR', milestones=[16, 18], end=20),
+]
+
+# dataset settings
+train_list = [
+    _base_.mjsynth_textrecog_train, _base_.synthtext_an_textrecog_train
+]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=192 * 4,
+    num_workers=32,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=192 * 8)
diff --git a/mmocr-dev-1.x/configs/textrecog/abinet/abinet_10e_union14m.py b/mmocr-dev-1.x/configs/textrecog/abinet/abinet_10e_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..18961901eea0aa12341127e427e73a8eed208d9e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/abinet/abinet_10e_union14m.py
@@ -0,0 +1,118 @@
+_base_ = [
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adamw_cos_10e.py',
+    '_base_abinet.py',
+]
+
+load_from = 'https://download.openmmlab.com/mmocr/textrecog/abinet/abinet_pretrain-45deac15.pth'  # noqa
+
+_base_.pop('model')
+dictionary = dict(
+    type='Dictionary',
+    dict_file=  # noqa
+    '{{ fileDirname }}/../../../dicts/english_digits_symbols_space.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='ABINet',
+    backbone=dict(type='ResNetABI'),
+    encoder=dict(
+        type='ABIEncoder',
+        n_layers=3,
+        n_head=8,
+        d_model=512,
+        d_inner=2048,
+        dropout=0.1,
+        max_len=8 * 32,
+    ),
+    decoder=dict(
+        type='ABIFuser',
+        vision_decoder=dict(
+            type='ABIVisionDecoder',
+            in_channels=512,
+            num_channels=64,
+            attn_height=8,
+            attn_width=32,
+            attn_mode='nearest',
+            init_cfg=dict(type='Xavier', layer='Conv2d')),
+        module_loss=dict(type='ABIModuleLoss'),
+        postprocessor=dict(type='AttentionPostprocessor'),
+        dictionary=dictionary,
+        max_seq_len=26,
+    ),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375]))
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=128,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/abinet/abinet_20e_st-an_mj.py b/mmocr-dev-1.x/configs/textrecog/abinet/abinet_20e_st-an_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..34bed99aa07642bfdf8ea5cad729df5a7cb8e12f
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/abinet/abinet_20e_st-an_mj.py
@@ -0,0 +1,63 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+    '_base_abinet.py',
+]
+
+load_from = 'https://download.openmmlab.com/mmocr/textrecog/abinet/abinet_pretrain-45deac15.pth'  # noqa
+
+optim_wrapper = dict(optimizer=dict(lr=1e-4))
+train_cfg = dict(max_epochs=20)
+# learning policy
+param_scheduler = [
+    dict(
+        type='LinearLR', end=2, start_factor=0.001,
+        convert_to_iter_based=True),
+    dict(type='MultiStepLR', milestones=[16, 18], end=20),
+]
+
+# dataset settings
+train_list = [
+    _base_.mjsynth_textrecog_train, _base_.synthtext_an_textrecog_train
+]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=192,
+    num_workers=32,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=192 * 8)
diff --git a/mmocr-dev-1.x/configs/textrecog/abinet/metafile.yml b/mmocr-dev-1.x/configs/textrecog/abinet/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..6a8172634ce55bf4e3ea8af1b4b2b2482afac802
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/abinet/metafile.yml
@@ -0,0 +1,103 @@
+Collections:
+- Name: ABINet-vision
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adam
+    Epochs: 20
+    Batch Size: 1536
+    Training Resources: 2 x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNetABI
+      - ABIVisionModel
+  Paper:
+    URL: https://arxiv.org/pdf/2103.06495.pdf
+    Title: 'Read Like Humans: Autonomous, Bidirectional and Iterative Language Modeling for Scene Text Recognition'
+  README: configs/textrecog/abinet/README.md
+- Name: ABINet
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adam
+    Epochs: 20
+    Batch Size: 1536
+    Training Resources: 8 x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNetABI
+      - ABIVisionModel
+      - ABILanguageDecoder
+      - ABIFuser
+  Paper:
+    URL: https://arxiv.org/pdf/2103.06495.pdf
+    Title: 'Read Like Humans: Autonomous, Bidirectional and Iterative Language Modeling for Scene Text Recognition'
+  README: configs/textrecog/abinet/README.md
+
+Models:
+  - Name: abinet-vision_20e_st-an_mj
+    Alias: ABINet_Vision
+    In Collection: ABINet-vision
+    Config: configs/textrecog/abinet/abinet-vision_20e_st-an_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9523
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.9057
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9369
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7886
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8403
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8437
+    Weights: https://download.openmmlab.com/mmocr/textrecog/abinet/abinet-vision_20e_st-an_mj/abinet-vision_20e_st-an_mj_20220915_152445-85cfb03d.pth
+  - Name: abinet_20e_st-an_mj
+    Alias: ABINet
+    In Collection: ABINet
+    Config: configs/textrecog/abinet/abinet_20e_st-an_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9603
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.9382
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9547
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.8122
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8868
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8785
+    Weights: https://download.openmmlab.com/mmocr/textrecog/abinet/abinet_20e_st-an_mj/abinet_20e_st-an_mj_20221005_012617-ead8c139.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/aster/README.md b/mmocr-dev-1.x/configs/textrecog/aster/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..0e795b7eb4383846b23b44b97b3ec331f1f2e740
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/aster/README.md
@@ -0,0 +1,56 @@
+# ASTER
+
+> [ASTER: An Attentional Scene Text Recognizer with Flexible Rectification](https://ieeexplore.ieee.org/abstract/document/8395027/)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+A challenging aspect of scene text recognition is to handle text with distortions or irregular layout. In particular, perspective text and curved text are common in natural scenes and are difficult to recognize. In this work, we introduce ASTER, an end-to-end neural network model that comprises a rectification network and a recognition network. The rectification network adaptively transforms an input image into a new one, rectifying the text in it. It is powered by a flexible Thin-Plate Spline transformation which handles a variety of text irregularities and is trained without human annotations. The recognition network is an attentional sequence-to-sequence model that predicts a character sequence directly from the rectified image. The whole model is trained end to end, requiring only images and their groundtruth text. Through extensive experiments, we verify the effectiveness of the rectification and demonstrate the state-of-the-art recognition performance of ASTER. Furthermore, we demonstrate that ASTER is a powerful component in end-to-end recognition systems, for its ability to enhance the detector.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/65173622/207841597-fcd596cf-20eb-42db-9108-21e586dd9109.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+| trainset  | instance_num | repeat_num |     note     |
+| :-------: | :----------: | :--------: | :----------: |
+|  Syn90k   |   8919273    |     1      |    synth     |
+| SynthText |   7239272    |     1      | alphanumeric |
+
+### Test Dataset
+
+| testset | instance_num |   note    |
+| :-----: | :----------: | :-------: |
+| IIIT5K  |     3000     |  regular  |
+|   SVT   |     647      |  regular  |
+|  IC13   |     1015     |  regular  |
+|  IC15   |     2077     | irregular |
+|  SVTP   |     645      | irregular |
+|  CT80   |     288      | irregular |
+
+## Results and models
+
+|                             Methods                              | Backbone |        | Regular Text |           |     |           | Irregular Text |        |                               download                                |
+| :--------------------------------------------------------------: | :------: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :-------------------------------------------------------------------: |
+|                                                                  |          | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                                       |
+|   [ASTER](/configs/textrecog/aster/aster_resnet45_6e_st_mj.py)   | ResNet45 | 0.9357 |    0.8949    |  0.9281   |     |  0.7665   |     0.8062     | 0.8507 | [model](https://download.openmmlab.com/mmocr/textrecog/aster/aster_resnet45_6e_st_mj/aster_resnet45_6e_st_mj-cc56eca4.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/aster/aster_resnet45_6e_st_mj/20221214_232605.log) |
+| [ASTER-TTA](/configs/textrecog/aster/aster_resnet45_6e_st_mj.py) | ResNet45 | 0.9337 |    0.8949    |  0.9251   |     |  0.7925   |     0.8109     | 0.8507 |                                                                       |
+
+## Citation
+
+```bibtex
+@article{shi2018aster,
+  title={Aster: An attentional scene text recognizer with flexible rectification},
+  author={Shi, Baoguang and Yang, Mingkun and Wang, Xinggang and Lyu, Pengyuan and Yao, Cong and Bai, Xiang},
+  journal={IEEE transactions on pattern analysis and machine intelligence},
+  volume={41},
+  number={9},
+  pages={2035--2048},
+  year={2018},
+  publisher={IEEE}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/aster/_base_aster.py b/mmocr-dev-1.x/configs/textrecog/aster/_base_aster.py
new file mode 100644
index 0000000000000000000000000000000000000000..5f011522ca9858484d1633e67fc14c4f91fdaf9f
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/aster/_base_aster.py
@@ -0,0 +1,104 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/english_digits_symbols.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='ASTER',
+    preprocessor=dict(
+        type='STN',
+        in_channels=3,
+        resized_image_size=(32, 64),
+        output_image_size=(32, 100),
+        num_control_points=20),
+    backbone=dict(
+        type='ResNet',
+        in_channels=3,
+        stem_channels=[32],
+        block_cfgs=dict(type='BasicBlock', use_conv1x1='True'),
+        arch_layers=[3, 4, 6, 6, 3],
+        arch_channels=[32, 64, 128, 256, 512],
+        strides=[(2, 2), (2, 2), (2, 1), (2, 1), (2, 1)],
+        init_cfg=[
+            dict(type='Kaiming', layer='Conv2d'),
+            dict(type='Constant', val=1, layer='BatchNorm2d'),
+        ]),
+    encoder=dict(type='ASTEREncoder', in_channels=512),
+    decoder=dict(
+        type='ASTERDecoder',
+        max_seq_len=25,
+        in_channels=512,
+        emb_dims=512,
+        attn_dims=512,
+        hidden_size=512,
+        postprocessor=dict(type='AttentionPostprocessor'),
+        module_loss=dict(
+            type='CEModuleLoss', flatten=True, ignore_first_char=True),
+        dictionary=dictionary,
+    ),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[127.5, 127.5, 127.5],
+        std=[127.5, 127.5, 127.5]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=0),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(type='Resize', scale=(256, 64)),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='Resize', scale=(256, 64)),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio',
+                   'instances'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[[
+            dict(
+                type='ConditionApply',
+                true_transforms=[
+                    dict(
+                        type='ImgAugWrapper',
+                        args=[dict(cls='Rot90', k=0, keep_size=False)])
+                ],
+                condition="results['img_shape'][1]<results['img_shape'][0]"),
+            dict(
+                type='ConditionApply',
+                true_transforms=[
+                    dict(
+                        type='ImgAugWrapper',
+                        args=[dict(cls='Rot90', k=1, keep_size=False)])
+                ],
+                condition="results['img_shape'][1]<results['img_shape'][0]"),
+            dict(
+                type='ConditionApply',
+                true_transforms=[
+                    dict(
+                        type='ImgAugWrapper',
+                        args=[dict(cls='Rot90', k=3, keep_size=False)])
+                ],
+                condition="results['img_shape'][1]<results['img_shape'][0]"),
+        ], [dict(type='Resize', scale=(256, 64))],
+                    [dict(type='LoadOCRAnnotations', with_text=True)],
+                    [
+                        dict(
+                            type='PackTextRecogInputs',
+                            meta_keys=('img_path', 'ori_shape', 'img_shape',
+                                       'valid_ratio', 'instances'))
+                    ]])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/aster/aster_resnet45_6e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/aster/aster_resnet45_6e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..d68e45561e62486460eded628de2659bbcf61a73
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/aster/aster_resnet45_6e_st_mj.py
@@ -0,0 +1,57 @@
+# training schedule for 1x
+_base_ = [
+    '_base_aster.py',
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adamw_cos_6e.py',
+]
+
+# dataset settings
+train_list = [
+    _base_.mjsynth_textrecog_train,
+    _base_.synthtext_textrecog_train,
+]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50))
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=1024,
+    num_workers=24,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+auto_scale_lr = dict(base_batch_size=1024)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/configs/textrecog/aster/aster_resnet45_6e_union14m.py b/mmocr-dev-1.x/configs/textrecog/aster/aster_resnet45_6e_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..fd702f3489d002584b4339c7c08144b4230936d6
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/aster/aster_resnet45_6e_union14m.py
@@ -0,0 +1,91 @@
+# training schedule for 1x
+_base_ = [
+    '_base_aster.py',
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adamw_cos_6e.py',
+]
+
+dictionary = dict(
+    type='Dictionary',
+    dict_file=  # noqa
+    '{{ fileDirname }}/../../../dicts/english_digits_symbols_space.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50))
+
+auto_scale_lr = dict(base_batch_size=512)
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=512,
+    num_workers=12,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/aster/metafile.yml b/mmocr-dev-1.x/configs/textrecog/aster/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..b7a5973a24973e1bdc0fb69084117d45e9ae1fc1
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/aster/metafile.yml
@@ -0,0 +1,52 @@
+Collections:
+  - Name: ASTER
+    Metadata:
+      Training Data: OCRDataset
+      Training Techniques:
+        - AdamW
+      Epochs: 6
+      Batch Size: 4096
+      Training Resources: 4 x NVIDIA A100-SXM4-80GB
+      Architecture:
+        - ResNet45
+        - ASTERDecoder
+    Paper:
+      URL: https://ieeexplore.ieee.org/abstract/document/8395027/
+      Title: 'ASTER: An Attentional Scene Text Recognizer with Flexible Rectification'
+    README: configs/textrecog/aster/README.md
+
+Models:
+  - Name: aster_resnet45_6e_st_mj
+    Alias: ASTER
+    In Collection: ASTER
+    Config: configs/textrecog/aster/aster_resnet45_6e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9357
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8949
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9281
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7665
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8062
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8507
+    Weights: https://download.openmmlab.com/mmocr/textrecog/aster/aster_resnet45_6e_st_mj/aster_resnet45_6e_st_mj-cc56eca4.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/crnn/README.md b/mmocr-dev-1.x/configs/textrecog/crnn/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..0cac7756da335e0c5c785ba2c2163f65e7e55ac8
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/crnn/README.md
@@ -0,0 +1,51 @@
+# CRNN
+
+> [An end-to-end trainable neural network for image-based sequence recognition and its application to scene text recognition](https://arxiv.org/abs/1507.05717)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Image-based sequence recognition has been a long-standing research topic in computer vision. In this paper, we investigate the problem of scene text recognition, which is among the most important and challenging tasks in image-based sequence recognition. A novel neural network architecture, which integrates feature extraction, sequence modeling and transcription into a unified framework, is proposed. Compared with previous systems for scene text recognition, the proposed architecture possesses four distinctive properties: (1) It is end-to-end trainable, in contrast to most of the existing algorithms whose components are separately trained and tuned. (2) It naturally handles sequences in arbitrary lengths, involving no character segmentation or horizontal scale normalization. (3) It is not confined to any predefined lexicon and achieves remarkable performances in both lexicon-free and lexicon-based scene text recognition tasks. (4) It generates an effective yet much smaller model, which is more practical for real-world application scenarios. The experiments on standard benchmarks, including the IIIT-5K, Street View Text and ICDAR datasets, demonstrate the superiority of the proposed algorithm over the prior arts. Moreover, the proposed algorithm performs well in the task of image-based music score recognition, which evidently verifies the generality of it.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142797788-6b1cd78d-1dd6-4e02-be32-3dbd257c4992.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+| trainset | instance_num | repeat_num | note  |
+| :------: | :----------: | :--------: | :---: |
+|  Syn90k  |   8919273    |     1      | synth |
+
+### Test Dataset
+
+| testset | instance_num |   note    |
+| :-----: | :----------: | :-------: |
+| IIIT5K  |     3000     |  regular  |
+|   SVT   |     647      |  regular  |
+|  IC13   |     1015     |  regular  |
+|  IC15   |     2077     | irregular |
+|  SVTP   |     645      | irregular |
+|  CT80   |     288      | irregular |
+
+## Results and models
+
+|                          methods                           |        | Regular Text |           |     |           | Irregular Text |        |                                      download                                       |
+| :--------------------------------------------------------: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :---------------------------------------------------------------------------------: |
+|                          methods                           | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                                                     |
+|   [CRNN](/configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py)   | 0.8053 |    0.7991    |  0.8739   |     |  0.5571   |     0.6093     | 0.5694 | [model](https://download.openmmlab.com/mmocr/textrecog/crnn/crnn_mini-vgg_5e_mj/crnn_mini-vgg_5e_mj_20220826_224120-8afbedbb.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/crnn/crnn_mini-vgg_5e_mj/20220826_224120.log) |
+| [CRNN-TTA](/configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py) | 0.8013 |    0.7975    |  0.8631   |     |  0.5763   |     0.6093     | 0.5764 | [model](https://download.openmmlab.com/mmocr/textrecog/crnn/crnn_mini-vgg_5e_mj/crnn_mini-vgg_5e_mj_20220826_224120-8afbedbb.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/crnn/crnn_mini-vgg_5e_mj/20220826_224120.log) |
+
+## Citation
+
+```bibtex
+@article{shi2016end,
+  title={An end-to-end trainable neural network for image-based sequence recognition and its application to scene text recognition},
+  author={Shi, Baoguang and Bai, Xiang and Yao, Cong},
+  journal={IEEE transactions on pattern analysis and machine intelligence},
+  year={2016}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/crnn/_base_crnn_mini-vgg.py b/mmocr-dev-1.x/configs/textrecog/crnn/_base_crnn_mini-vgg.py
new file mode 100644
index 0000000000000000000000000000000000000000..794bd63b120610004ac03239b1443114e871b805
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/crnn/_base_crnn_mini-vgg.py
@@ -0,0 +1,102 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/lower_english_digits.txt',
+    with_padding=True)
+
+model = dict(
+    type='CRNN',
+    preprocessor=None,
+    backbone=dict(type='MiniVGG', leaky_relu=False, input_channels=1),
+    encoder=None,
+    decoder=dict(
+        type='CRNNDecoder',
+        in_channels=512,
+        rnn_flag=True,
+        module_loss=dict(type='CTCModuleLoss', letter_case='lower'),
+        postprocessor=dict(type='CTCPostProcessor'),
+        dictionary=dictionary),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor', mean=[127], std=[127]))
+
+train_pipeline = [
+    dict(
+        type='LoadImageFromFile',
+        color_type='grayscale',
+        ignore_empty=True,
+        min_size=2),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(type='Resize', scale=(100, 32), keep_ratio=False),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='grayscale'),
+    dict(
+        type='RescaleToHeight',
+        height=32,
+        min_width=32,
+        max_width=None,
+        width_divisor=16),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile', color_type='grayscale'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [
+                dict(
+                    type='RescaleToHeight',
+                    height=32,
+                    min_width=32,
+                    max_width=None,
+                    width_divisor=16)
+            ],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py b/mmocr-dev-1.x/configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..3cb2223e0d8d36ab5d1c5de2096e81576ebb8096
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py
@@ -0,0 +1,48 @@
+# training schedule for 1x
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adadelta_5e.py',
+    '_base_crnn_mini-vgg.py',
+]
+# dataset settings
+train_list = [_base_.mjsynth_textrecog_train]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50), )
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=train_list,
+        pipeline=_base_.train_pipeline))
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=64 * 4)
diff --git a/mmocr-dev-1.x/configs/textrecog/crnn/crnn_mini-vgg_5e_toy.py b/mmocr-dev-1.x/configs/textrecog/crnn/crnn_mini-vgg_5e_toy.py
new file mode 100644
index 0000000000000000000000000000000000000000..926f6341bbc2aad9f3e47247334d1a408a4a8274
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/crnn/crnn_mini-vgg_5e_toy.py
@@ -0,0 +1,41 @@
+# training schedule for 1x
+_base_ = [
+    '../_base_/default_runtime.py',
+    '../_base_/datasets/toy_data.py',
+    '../_base_/schedules/schedule_adadelta_5e.py',
+    '_base_crnn_mini-vgg.py',
+]
+
+# dataset settings
+train_list = [_base_.toy_rec_train]
+test_list = [_base_.toy_rec_test]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50), )
+
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=train_list,
+        pipeline=_base_.train_pipeline))
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+test_dataloader = val_dataloader
+
+_base_.model.decoder.dictionary.update(
+    dict(with_unknown=True, unknown_token=None))
+_base_.train_cfg.update(dict(max_epochs=200, val_interval=10))
+
+val_evaluator = dict(dataset_prefixes=['Toy'])
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/configs/textrecog/crnn/metafile.yml b/mmocr-dev-1.x/configs/textrecog/crnn/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..96637e2f872536566c87998a5ab66a023e80ce02
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/crnn/metafile.yml
@@ -0,0 +1,50 @@
+Collections:
+- Name: CRNN
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adadelta
+    Epochs: 5
+    Batch Size: 64
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - MiniVGG
+      - CRNNDecoder
+  Paper:
+    URL: https://arxiv.org/pdf/1507.05717.pdf
+    Title: 'An End-to-End Trainable Neural Network for Image-based Sequence Recognition and Its Application to Scene Text Recognition'
+  README: configs/textrecog/crnn/README.md
+
+Models:
+  - Name: crnn_mini-vgg_5e_mj
+    Alias: CRNN
+    In Collection: CRNN
+    Config: configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py
+    Metadata:
+      Training Data: Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.8053
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8053
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.8739
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.5556
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.6093
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.5694
+    Weights: https://download.openmmlab.com/mmocr/textrecog/crnn/crnn_mini-vgg_5e_mj/crnn_mini-vgg_5e_mj_20220826_224120-8afbedbb.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/maerec/_base_marec_vit_s.py b/mmocr-dev-1.x/configs/textrecog/maerec/_base_marec_vit_s.py
new file mode 100644
index 0000000000000000000000000000000000000000..06febd0884209d0e317931f85a4415ce4ac020da
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/maerec/_base_marec_vit_s.py
@@ -0,0 +1,159 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file=  # noqa
+    '{{ fileDirname }}/../../../dicts/english_digits_symbols_space.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='MAERec',
+    backbone=dict(
+        type='VisionTransformer',
+        img_size=(32, 128),
+        patch_size=(4, 4),
+        embed_dim=384,
+        depth=12,
+        num_heads=6,
+        mlp_ratio=4.0,
+        qkv_bias=True,
+        pretrained=None),
+    decoder=dict(
+        type='MAERecDecoder',
+        n_layers=6,
+        d_embedding=384,
+        n_head=8,
+        d_model=384,
+        d_inner=384 * 4,
+        d_k=48,
+        d_v=48,
+        postprocessor=dict(type='AttentionPostprocessor'),
+        module_loss=dict(
+            type='CEModuleLoss', reduction='mean', ignore_first_char=True),
+        max_seq_len=48,
+        dictionary=dictionary),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=0),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(type='Resize', scale=(128, 32)),
+    dict(
+        type='RandomApply',
+        prob=0.5,
+        transforms=[
+            dict(
+                type='RandomChoice',
+                transforms=[
+                    dict(
+                        type='RandomRotate',
+                        max_angle=15,
+                    ),
+                    dict(
+                        type='TorchVisionWrapper',
+                        op='RandomAffine',
+                        degrees=15,
+                        translate=(0.3, 0.3),
+                        scale=(0.5, 2.),
+                        shear=(-45, 45),
+                    ),
+                    dict(
+                        type='TorchVisionWrapper',
+                        op='RandomPerspective',
+                        distortion_scale=0.5,
+                        p=1,
+                    ),
+                ])
+        ],
+    ),
+    dict(
+        type='RandomApply',
+        prob=0.25,
+        transforms=[
+            dict(type='PyramidRescale'),
+            dict(
+                type='mmdet.Albu',
+                transforms=[
+                    dict(type='GaussNoise', var_limit=(20, 20), p=0.5),
+                    dict(type='MotionBlur', blur_limit=7, p=0.5),
+                ]),
+        ]),
+    dict(
+        type='RandomApply',
+        prob=0.25,
+        transforms=[
+            dict(
+                type='TorchVisionWrapper',
+                op='ColorJitter',
+                brightness=0.5,
+                saturation=0.5,
+                contrast=0.5,
+                hue=0.1),
+        ]),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='Resize', scale=(128, 32)),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [dict(type='Resize', scale=(128, 32))],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/maerec/maerec_b_lora_union14m.py b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_b_lora_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..8981a54bad14bc4af000f147ceda44bac4a77961
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_b_lora_union14m.py
@@ -0,0 +1,96 @@
+# training schedule for 1x
+_base_ = [
+    '_base_marec_vit_s.py',
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adamw_cos_10e.py',
+]
+
+_base_.model.pop('backbone')
+model = dict(
+    backbone=dict(
+        type='VisionTransformer_LoRA',
+        vit_config=dict(
+            img_size=(32, 128),
+            patch_size=4,
+            embed_dim=768,
+            depth=12,
+            num_heads=12,
+            mlp_ratio=4.0,
+            qkv_bias=True,
+            pretrained=  # noqa
+            '../mae/mae_pretrained/vit_base/vit_base_checkpoint-19.pth'),
+        rank=4),
+    decoder=dict(
+        type='MAERecDecoder',
+        n_layers=6,
+        d_embedding=768,
+        n_head=8,
+        d_model=768,
+        d_inner=3072,
+        d_k=96,
+        d_v=96))
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [_base_.union14m_val]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50))
+
+auto_scale_lr = dict(base_batch_size=512)
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=12,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/maerec/maerec_b_union14m.py b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_b_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..42c2ae69379ba060c13d5f6ab67000ed3bbe4936
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_b_union14m.py
@@ -0,0 +1,95 @@
+# training schedule for 1x
+_base_ = [
+    '_base_marec_vit_s.py',
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adamw_cos_6e.py',
+]
+
+model = dict(
+    backbone=dict(
+        type='VisionTransformer',
+        img_size=(32, 128),
+        patch_size=4,
+        embed_dim=768,
+        depth=12,
+        num_heads=12,
+        mlp_ratio=4.0,
+        qkv_bias=True,
+        pretrained=None),
+    decoder=dict(
+        type='MAERecDecoder',
+        n_layers=6,
+        d_embedding=768,
+        n_head=8,
+        d_model=768,
+        d_inner=3072,
+        d_k=96,
+        d_v=96))
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [_base_.union14m_val]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50))
+
+auto_scale_lr = dict(base_batch_size=512)
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=12,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+
+test_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/maerec/maerec_s_lora_union14m.py b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_s_lora_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..93848afc426dd40cd256d150b8e21891be32b0fa
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_s_lora_union14m.py
@@ -0,0 +1,88 @@
+# training schedule for 1x
+_base_ = [
+    '_base_marec_vit_s.py',
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adamw_cos_6e.py',
+]
+
+_base_.model.pop('backbone')
+model = dict(
+    backbone=dict(
+        type='VisionTransformer_LoRA',
+        vit_config=dict(
+            type='VisionTransformer',
+            img_size=(32, 128),
+            patch_size=(4, 4),
+            embed_dim=384,
+            depth=12,
+            num_heads=6,
+            mlp_ratio=4.0,
+            qkv_bias=True,
+            pretrained=  # noqa
+            '../mae/mae_pretrained/vit_small/vit_small_checkpoint-19.pth'),
+        rank=4))
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [_base_.union14m_val]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50))
+
+auto_scale_lr = dict(base_batch_size=512)
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=128,
+    num_workers=12,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/maerec/maerec_s_union14m.py b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_s_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..1274375979573d8172c421a5b0153fae6cbd4dd6
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/maerec/maerec_s_union14m.py
@@ -0,0 +1,71 @@
+# training schedule for 1x
+_base_ = [
+    '_base_marec_vit_s.py',
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adamw_cos_10e.py',
+]
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [_base_.union14m_val]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=50))
+
+auto_scale_lr = dict(base_batch_size=512)
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=128,
+    num_workers=12,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/master/README.md b/mmocr-dev-1.x/configs/textrecog/master/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..9aeffc8f07f4b2682814452e7b03c842de518153
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/master/README.md
@@ -0,0 +1,53 @@
+# MASTER
+
+> [MASTER: Multi-aspect non-local network for scene text recognition](https://arxiv.org/abs/1910.02562)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Attention-based scene text recognizers have gained huge success, which leverages a more compact intermediate representation to learn 1d- or 2d- attention by a RNN-based encoder-decoder architecture. However, such methods suffer from attention-drift problem because high similarity among encoded features leads to attention confusion under the RNN-based local attention mechanism. Moreover, RNN-based methods have low efficiency due to poor parallelization. To overcome these problems, we propose the MASTER, a self-attention based scene text recognizer that (1) not only encodes the input-output attention but also learns self-attention which encodes feature-feature and target-target relationships inside the encoder and decoder and (2) learns a more powerful and robust intermediate representation to spatial distortion, and (3) owns a great training efficiency because of high training parallelization and a high-speed inference because of an efficient memory-cache mechanism. Extensive experiments on various benchmarks demonstrate the superior performance of our MASTER on both regular and irregular scene text.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/65173622/164642001-037f81b7-37dd-4808-a6a9-09ff6f6a17ea.JPG">
+</div>
+
+## Dataset
+
+### Train Dataset
+
+| trainset  | instance_num | repeat_num | source |
+| :-------: | :----------: | :--------: | :----: |
+| SynthText |   7266686    |     1      | synth  |
+| SynthAdd  |   1216889    |     1      | synth  |
+|  Syn90k   |   8919273    |     1      | synth  |
+
+### Test Dataset
+
+| testset | instance_num |   type    |
+| :-----: | :----------: | :-------: |
+| IIIT5K  |     3000     |  regular  |
+|   SVT   |     647      |  regular  |
+|  IC13   |     1015     |  regular  |
+|  IC15   |     2077     | irregular |
+|  SVTP   |     645      | irregular |
+|  CT80   |     288      | irregular |
+
+## Results and Models
+
+|                             Methods                             |   Backbone    |        | Regular Text |           |     |           | Irregular Text |        |                             download                              |
+| :-------------------------------------------------------------: | :-----------: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :---------------------------------------------------------------: |
+|                                                                 |               | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                                   |
+| [MASTER](/configs/textrecog/master/master_resnet31_12e_st_mj_sa.py) | R31-GCAModule | 0.9490 |    0.8887    |  0.9517   |     |  0.7650   |     0.8465     | 0.8889 | [model](https://download.openmmlab.com/mmocr/textrecog/master/master_resnet31_12e_st_mj_sa/master_resnet31_12e_st_mj_sa_20220915_152443-f4a5cabc.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/master/master_resnet31_12e_st_mj_sa/20220915_152443.log) |
+| [MASTER-TTA](/configs/textrecog/master/master_resnet31_12e_st_mj_sa.py) | R31-GCAModule | 0.9450 |    0.8887    |  0.9478   |     |  0.7906   |     0.8481     | 0.8958 |                                                                   |
+
+## Citation
+
+```bibtex
+@article{Lu2021MASTER,
+  title={MASTER: Multi-Aspect Non-local Network for Scene Text Recognition},
+  author={Ning Lu and Wenwen Yu and Xianbiao Qi and Yihao Chen and Ping Gong and Rong Xiao and Xiang Bai},
+  journal={Pattern Recognition},
+  year={2021}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/master/_base_master_resnet31.py b/mmocr-dev-1.x/configs/textrecog/master/_base_master_resnet31.py
new file mode 100644
index 0000000000000000000000000000000000000000..7214d2fbf03d92614dc129e4b74e02b23d64e8c5
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/master/_base_master_resnet31.py
@@ -0,0 +1,160 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/english_digits_symbols.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='MASTER',
+    backbone=dict(
+        type='ResNet',
+        in_channels=3,
+        stem_channels=[64, 128],
+        block_cfgs=dict(
+            type='BasicBlock',
+            plugins=dict(
+                cfg=dict(
+                    type='GCAModule',
+                    ratio=0.0625,
+                    n_head=1,
+                    pooling_type='att',
+                    is_att_scale=False,
+                    fusion_type='channel_add'),
+                position='after_conv2')),
+        arch_layers=[1, 2, 5, 3],
+        arch_channels=[256, 256, 512, 512],
+        strides=[1, 1, 1, 1],
+        plugins=[
+            dict(
+                cfg=dict(type='Maxpool2d', kernel_size=2, stride=(2, 2)),
+                stages=(True, True, False, False),
+                position='before_stage'),
+            dict(
+                cfg=dict(type='Maxpool2d', kernel_size=(2, 1), stride=(2, 1)),
+                stages=(False, False, True, False),
+                position='before_stage'),
+            dict(
+                cfg=dict(
+                    type='ConvModule',
+                    kernel_size=3,
+                    stride=1,
+                    padding=1,
+                    norm_cfg=dict(type='BN'),
+                    act_cfg=dict(type='ReLU')),
+                stages=(True, True, True, True),
+                position='after_stage')
+        ],
+        init_cfg=[
+            dict(type='Kaiming', layer='Conv2d'),
+            dict(type='Constant', val=1, layer='BatchNorm2d'),
+        ]),
+    encoder=None,
+    decoder=dict(
+        type='MasterDecoder',
+        d_model=512,
+        n_head=8,
+        attn_drop=0.,
+        ffn_drop=0.,
+        d_inner=2048,
+        n_layers=3,
+        feat_pe_drop=0.2,
+        feat_size=6 * 40,
+        postprocessor=dict(type='AttentionPostprocessor'),
+        module_loss=dict(
+            type='CEModuleLoss', reduction='mean', ignore_first_char=True),
+        max_seq_len=30,
+        dictionary=dictionary),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[127.5, 127.5, 127.5],
+        std=[127.5, 127.5, 127.5]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=2),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='RescaleToHeight',
+        height=48,
+        min_width=48,
+        max_width=160,
+        width_divisor=16),
+    dict(type='PadToWidth', width=160),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='RescaleToHeight',
+        height=48,
+        min_width=48,
+        max_width=160,
+        width_divisor=16),
+    dict(type='PadToWidth', width=160),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [
+                dict(
+                    type='RescaleToHeight',
+                    height=48,
+                    min_width=48,
+                    max_width=160,
+                    width_divisor=16)
+            ],
+            [dict(type='PadToWidth', width=160)],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/master/master_resnet31_12e_st_mj_sa.py b/mmocr-dev-1.x/configs/textrecog/master/master_resnet31_12e_st_mj_sa.py
new file mode 100644
index 0000000000000000000000000000000000000000..7ab66ab747ed3fa946cfc09fdbf479f97710909a
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/master/master_resnet31_12e_st_mj_sa.py
@@ -0,0 +1,61 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/synthtext_add.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+    '_base_master_resnet31.py',
+]
+
+optim_wrapper = dict(optimizer=dict(lr=4e-4))
+train_cfg = dict(max_epochs=12)
+# learning policy
+param_scheduler = [
+    dict(type='LinearLR', end=100, by_epoch=False),
+    dict(type='MultiStepLR', milestones=[11], end=12),
+]
+
+# dataset settings
+train_list = [
+    _base_.mjsynth_textrecog_train, _base_.synthtext_textrecog_train,
+    _base_.synthtext_add_textrecog_train
+]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=512,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=512 * 4)
diff --git a/mmocr-dev-1.x/configs/textrecog/master/master_resnet31_12e_toy.py b/mmocr-dev-1.x/configs/textrecog/master/master_resnet31_12e_toy.py
new file mode 100644
index 0000000000000000000000000000000000000000..adf14636518c6aa154da397106d2aae8b008226c
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/master/master_resnet31_12e_toy.py
@@ -0,0 +1,43 @@
+_base_ = [
+    '_base_master_resnet31.py',
+    '../_base_/datasets/toy_data.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+]
+
+optim_wrapper = dict(optimizer=dict(lr=4e-4))
+train_cfg = dict(max_epochs=12)
+# learning policy
+param_scheduler = [
+    dict(type='LinearLR', end=100, by_epoch=False),
+    dict(type='MultiStepLR', milestones=[11], end=12),
+]
+
+# dataset settings
+train_list = [_base_.toy_rec_train]
+test_list = [_base_.toy_rec_test]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=2,
+    num_workers=1,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+val_dataloader = dict(
+    batch_size=2,
+    num_workers=1,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+test_dataloader = val_dataloader
+
+val_evaluator = dict(dataset_prefixes=['Toy'])
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/configs/textrecog/master/metafile.yml b/mmocr-dev-1.x/configs/textrecog/master/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..38f7f72f00319ef7123569acb66570c4632d7f1f
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/master/metafile.yml
@@ -0,0 +1,53 @@
+Collections:
+  - Name: MASTER
+    Metadata:
+      Training Data: OCRDataset
+      Training Techniques:
+        - Adam
+      Epochs: 12
+      Batch Size: 2048
+      Training Resources: 4x NVIDIA A100-SXM4-80GB
+      Architecture:
+        - ResNet31-GCAModule
+        - MASTERDecoder
+    Paper:
+      URL: https://arxiv.org/abs/1910.02562
+      Title: "MASTER: Multi-Aspect Non-local Network for Scene Text Recognition"
+    README: configs/textrecog/master/README.md
+
+Models:
+  - Name: master_resnet31_12e_st_mj_sa
+    Alias: MASTER
+    In Collection: MASTER
+    Config: configs/textrecog/master/master_resnet31_12e_st_mj_sa.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - SynthAdd
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9490
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8967
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9517
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7631
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8465
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8854
+    Weights: https://download.openmmlab.com/mmocr/textrecog/master/master_resnet31_12e_st_mj_sa/master_resnet31_12e_st_mj_sa_20220915_152443-f4a5cabc.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/README.md b/mmocr-dev-1.x/configs/textrecog/nrtr/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..b57cc7f8d952c22a41966a586279565858ccf761
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/README.md
@@ -0,0 +1,58 @@
+# NRTR
+
+> [NRTR: A No-Recurrence Sequence-to-Sequence Model For Scene Text Recognition](https://arxiv.org/abs/1806.00926)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Scene text recognition has attracted a great many researches due to its importance to various applications. Existing methods mainly adopt recurrence or convolution based networks. Though have obtained good performance, these methods still suffer from two limitations: slow training speed due to the internal recurrence of RNNs, and high complexity due to stacked convolutional layers for long-term feature extraction. This paper, for the first time, proposes a no-recurrence sequence-to-sequence text recognizer, named NRTR, that dispenses with recurrences and convolutions entirely. NRTR follows the encoder-decoder paradigm, where the encoder uses stacked self-attention to extract image features, and the decoder applies stacked self-attention to recognize texts based on encoder output. NRTR relies solely on self-attention mechanism thus could be trained with more parallelization and less complexity. Considering scene image has large variation in text and background, we further design a modality-transform block to effectively transform 2D input images to 1D sequences, combined with the encoder to extract more discriminative features. NRTR achieves state-of-the-art or highly competitive performance on both regular and irregular benchmarks, while requires only a small fraction of training time compared to the best model from the literature (at least 8 times faster).
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142797203-d9df6c35-868f-4848-8261-c286751fd342.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+| trainset  | instance_num | repeat_num | source |
+| :-------: | :----------: | :--------: | :----: |
+| SynthText |   7266686    |     1      | synth  |
+|  Syn90k   |   8919273    |     1      | synth  |
+
+### Test Dataset
+
+| testset | instance_num |   type    |
+| :-----: | :----------: | :-------: |
+| IIIT5K  |     3000     |  regular  |
+|   SVT   |     647      |  regular  |
+|  IC13   |     1015     |  regular  |
+|  IC15   |     2077     | irregular |
+|  SVTP   |     645      | irregular |
+|  CT80   |     288      | irregular |
+
+## Results and Models
+
+|                           Methods                           |       Backbone        |        | Regular Text |           |     |           | Irregular Text |        |                           download                            |
+| :---------------------------------------------------------: | :-------------------: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :-----------------------------------------------------------: |
+|                                                             |                       | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                               |
+| [NRTR](/configs/textrecog/nrtr/nrtr_modality-transform_6e_st_mj.py) | NRTRModalityTransform | 0.9147 |    0.8841    |  0.9369   |     |  0.7246   |     0.7783     | 0.7500 | [model](https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_modality-transform_6e_st_mj/nrtr_modality-transform_6e_st_mj_20220916_103322-bd9425be.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_modality-transform_6e_st_mj/20220916_103322.log) |
+| [NRTR-TTA](/configs/textrecog/nrtr/nrtr_modality-transform_6e_st_mj.py) | NRTRModalityTransform | 0.9123 |    0.8825    |  0.9310   |     |  0.7492   |     0.7798     | 0.7535 |                                                               |
+| [NRTR](/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj.py) |      R31-1/8-1/4      | 0.9483 |    0.8918    |  0.9507   |     |  0.7578   |     0.8016     | 0.8889 | [model](https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj/nrtr_resnet31-1by8-1by4_6e_st_mj_20220916_103322-a6a2a123.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj/20220916_103322.log) |
+| [NRTR-TTA](/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj.py) |      R31-1/8-1/4      | 0.9443 |    0.8903    |  0.9478   |     |  0.7790   |     0.8078     | 0.8854 |                                                               |
+| [NRTR](/configs/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py) |     R31-1/16-1/8      | 0.9470 |    0.8918    |  0.9399   |     |  0.7376   |     0.7969     | 0.8854 | [model](https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj/nrtr_resnet31-1by16-1by8_6e_st_mj_20220920_143358-43767036.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj/20220920_143358.log) |
+| [NRTR-TTA](/configs/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py) |     R31-1/16-1/8      | 0.9423 |    0.8903    |  0.9360   |     |  0.7641   |     0.8016     | 0.8854 |                                                               |
+
+## Citation
+
+```bibtex
+@inproceedings{sheng2019nrtr,
+  title={NRTR: A no-recurrence sequence-to-sequence model for scene text recognition},
+  author={Sheng, Fenfen and Chen, Zhineng and Xu, Bo},
+  booktitle={2019 International Conference on Document Analysis and Recognition (ICDAR)},
+  pages={781--786},
+  year={2019},
+  organization={IEEE}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/_base_nrtr_modality-transform.py b/mmocr-dev-1.x/configs/textrecog/nrtr/_base_nrtr_modality-transform.py
new file mode 100644
index 0000000000000000000000000000000000000000..5b21549f8ab62ae72988ef5ebbe13dee14d13ece
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/_base_nrtr_modality-transform.py
@@ -0,0 +1,111 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/english_digits_symbols.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='NRTR',
+    backbone=dict(type='NRTRModalityTransform'),
+    encoder=dict(type='NRTREncoder', n_layers=12),
+    decoder=dict(
+        type='NRTRDecoder',
+        module_loss=dict(
+            type='CEModuleLoss', ignore_first_char=True, flatten=True),
+        postprocessor=dict(type='AttentionPostprocessor'),
+        dictionary=dictionary,
+        max_seq_len=30),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=2),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='RescaleToHeight',
+        height=32,
+        min_width=32,
+        max_width=160,
+        width_divisor=4),
+    dict(type='PadToWidth', width=160),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='RescaleToHeight',
+        height=32,
+        min_width=32,
+        max_width=160,
+        width_divisor=16),
+    dict(type='PadToWidth', width=160),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [
+                dict(
+                    type='RescaleToHeight',
+                    height=32,
+                    min_width=32,
+                    max_width=160,
+                    width_divisor=16)
+            ],
+            [dict(type='PadToWidth', width=160)],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/_base_nrtr_resnet31.py b/mmocr-dev-1.x/configs/textrecog/nrtr/_base_nrtr_resnet31.py
new file mode 100644
index 0000000000000000000000000000000000000000..e9367d98074141329fa1676a839c876720c231d6
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/_base_nrtr_resnet31.py
@@ -0,0 +1,117 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/english_digits_symbols.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='NRTR',
+    backbone=dict(
+        type='ResNet31OCR',
+        layers=[1, 2, 5, 3],
+        channels=[32, 64, 128, 256, 512, 512],
+        stage4_pool_cfg=dict(kernel_size=(2, 1), stride=(2, 1)),
+        last_stage_pool=True),
+    encoder=dict(type='NRTREncoder'),
+    decoder=dict(
+        type='NRTRDecoder',
+        module_loss=dict(
+            type='CEModuleLoss', ignore_first_char=True, flatten=True),
+        postprocessor=dict(type='AttentionPostprocessor'),
+        dictionary=dictionary,
+        max_seq_len=30,
+    ),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=0),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='RescaleToHeight',
+        height=32,
+        min_width=32,
+        max_width=160,
+        width_divisor=4),
+    dict(type='PadToWidth', width=160),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='RescaleToHeight',
+        height=32,
+        min_width=32,
+        max_width=160,
+        width_divisor=16),
+    dict(type='PadToWidth', width=160),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [
+                dict(
+                    type='RescaleToHeight',
+                    height=32,
+                    min_width=32,
+                    max_width=160,
+                    width_divisor=16)
+            ],
+            [dict(type='PadToWidth', width=160)],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/metafile.yml b/mmocr-dev-1.x/configs/textrecog/nrtr/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..99939520cf417a120a321bf8b775b8054e1bbe24
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/metafile.yml
@@ -0,0 +1,122 @@
+Collections:
+- Name: NRTR
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adam
+    Epochs: 6
+    Batch Size: 384
+    Training Resources: 1x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - CNN
+      - NRTREncoder
+      - NRTRDecoder
+  Paper:
+    URL: https://arxiv.org/pdf/1806.00926.pdf
+    Title: 'NRTR: A No-Recurrence Sequence-to-Sequence Model For Scene Text Recognition'
+  README: configs/textrecog/nrtr/README.md
+
+Models:
+  - Name: nrtr_modality-transform_6e_st_mj
+    In Collection: NRTR
+    Config: configs/textrecog/nrtr/nrtr_modality-transform_6e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9150
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8825
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9369
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7232
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.7783
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.7500
+    Weights: https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_modality-transform_6e_st_mj/nrtr_modality-transform_6e_st_mj_20220916_103322-bd9425be.pth
+  - Name: nrtr_resnet31-1by8-1by4_6e_st_mj
+    Alias:
+      - NRTR
+      - NRTR_1/8-1/4
+    In Collection: NRTR
+    Config: configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9483
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8825
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9507
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7559
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8016
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8889
+    Weights: https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj/nrtr_resnet31-1by8-1by4_6e_st_mj_20220916_103322-a6a2a123.pth
+  - Name: nrtr_resnet31-1by16-1by8_6e_st_mj
+    Alias: NRTR_1/16-1/8
+    In Collection: NRTR
+    Config: configs/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9470
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8964
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9399
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7357
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.7969
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8854
+    Weights: https://download.openmmlab.com/mmocr/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj/nrtr_resnet31-1by16-1by8_6e_st_mj_20220920_143358-43767036.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_modality-transform_6e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_modality-transform_6e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..a1e77843e41a5078a2d890649f143e3ce5b7087d
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_modality-transform_6e_st_mj.py
@@ -0,0 +1,56 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+    '_base_nrtr_modality-transform.py',
+]
+
+# optimizer settings
+train_cfg = dict(max_epochs=6)
+# learning policy
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[3, 4], end=6),
+]
+
+# dataset settings
+train_list = [_base_.mjsynth_textrecog_train, _base_.synthtext_textrecog_train]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=384,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=384)
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_modality-transform_6e_toy.py b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_modality-transform_6e_toy.py
new file mode 100644
index 0000000000000000000000000000000000000000..db08d84276cde84f906b54bdb56ae4dc0eb46527
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_modality-transform_6e_toy.py
@@ -0,0 +1,42 @@
+_base_ = [
+    '../_base_/datasets/toy_data.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+    '_base_nrtr_modality-transform.py',
+]
+
+# optimizer settings
+train_cfg = dict(max_epochs=6)
+# learning policy
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[3, 4], end=6),
+]
+
+# dataset settings
+train_list = [_base_.toy_rec_train]
+test_list = [_base_.toy_rec_test]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+test_dataloader = val_dataloader
+
+val_evaluator = dict(dataset_prefixes=['Toy'])
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..2d3f019d5729a806985514cc8d17e9463e269df2
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by16-1by8_6e_st_mj.py
@@ -0,0 +1,56 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+    '_base_nrtr_resnet31.py',
+]
+
+# optimizer settings
+train_cfg = dict(max_epochs=6)
+# learning policy
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[3, 4], end=6),
+]
+
+# dataset settings
+train_list = [_base_.mjsynth_textrecog_train, _base_.synthtext_textrecog_train]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=384,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=384)
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..6831ca327d475113e9f517591830af2694522e07
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_6e_st_mj.py
@@ -0,0 +1,5 @@
+_base_ = [
+    'nrtr_resnet31-1by16-1by8_6e_st_mj.py',
+]
+
+model = dict(backbone=dict(last_stage_pool=False))
diff --git a/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_union14m.py b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..f9d96ae7f2737196c8aa29515a9e87e7db33039a
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/nrtr/nrtr_resnet31-1by8-1by4_union14m.py
@@ -0,0 +1,113 @@
+_base_ = [
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_base.py',
+    '_base_nrtr_resnet31.py',
+]
+
+# optimizer settings
+train_cfg = dict(max_epochs=6)
+# learning policy
+param_scheduler = [
+    dict(type='MultiStepLR', milestones=[3, 4], end=6),
+]
+
+_base_.pop('model')
+dictionary = dict(
+    type='Dictionary',
+    dict_file=  # noqa
+    '{{ fileDirname }}/../../../dicts/english_digits_symbols_space.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='NRTR',
+    backbone=dict(
+        type='ResNet31OCR',
+        layers=[1, 2, 5, 3],
+        channels=[32, 64, 128, 256, 512, 512],
+        stage4_pool_cfg=dict(kernel_size=(2, 1), stride=(2, 1)),
+        last_stage_pool=False),
+    encoder=dict(type='NRTREncoder'),
+    decoder=dict(
+        type='NRTRDecoder',
+        module_loss=dict(
+            type='CEModuleLoss', ignore_first_char=True, flatten=True),
+        postprocessor=dict(type='AttentionPostprocessor'),
+        dictionary=dictionary,
+        max_seq_len=30,
+    ),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375]))
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=128,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/robust_scanner/README.md b/mmocr-dev-1.x/configs/textrecog/robust_scanner/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..bc7403e3a104375973cdbf0c4e6cbf09cf08f1e8
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/robust_scanner/README.md
@@ -0,0 +1,62 @@
+# RobustScanner
+
+> [RobustScanner: Dynamically Enhancing Positional Clues for Robust Text Recognition](https://arxiv.org/abs/2007.07542)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+The attention-based encoder-decoder framework has recently achieved impressive results for scene text recognition, and many variants have emerged with improvements in recognition quality. However, it performs poorly on contextless texts (e.g., random character sequences) which is unacceptable in most of real application scenarios. In this paper, we first deeply investigate the decoding process of the decoder. We empirically find that a representative character-level sequence decoder utilizes not only context information but also positional information. Contextual information, which the existing approaches heavily rely on, causes the problem of attention drift. To suppress such side-effect, we propose a novel position enhancement branch, and dynamically fuse its outputs with those of the decoder attention module for scene text recognition. Specifically, it contains a position aware module to enable the encoder to output feature vectors encoding their own spatial positions, and an attention module to estimate glimpses using the positional clue (i.e., the current decoding time step) only. The dynamic fusion is conducted for more robust feature via an element-wise gate mechanism. Theoretically, our proposed method, dubbed \\emph{RobustScanner}, decodes individual characters with dynamic ratio between context and positional clues, and utilizes more positional ones when the decoding sequences with scarce context, and thus is robust and practical. Empirically, it has achieved new state-of-the-art results on popular regular and irregular text recognition benchmarks while without much performance drop on contextless benchmarks, validating its robustness in both contextual and contextless application scenarios.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142798010-eee8795e-8cda-4a7f-a81d-ff9c94af58dc.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+|  trainset  | instance_num | repeat_num |           source           |
+| :--------: | :----------: | :--------: | :------------------------: |
+| icdar_2011 |     3567     |     20     |            real            |
+| icdar_2013 |     848      |     20     |            real            |
+| icdar2015  |     4468     |     20     |            real            |
+| coco_text  |    42142     |     20     |            real            |
+|   IIIT5K   |     2000     |     20     |            real            |
+| SynthText  |   2400000    |     1      |           synth            |
+|  SynthAdd  |   1216889    |     1      | synth, 1.6m in [\[1\]](#1) |
+|   Syn90k   |   2400000    |     1      |           synth            |
+
+### Test Dataset
+
+| testset | instance_num |             type              |
+| :-----: | :----------: | :---------------------------: |
+| IIIT5K  |     3000     |            regular            |
+|   SVT   |     647      |            regular            |
+|  IC13   |     1015     |            regular            |
+|  IC15   |     2077     |           irregular           |
+|  SVTP   |     645      | irregular, 639 in [\[1\]](#1) |
+|  CT80   |     288      |           irregular           |
+
+## Results and Models
+
+|                               Methods                                | GPUs |        | Regular Text |           |     |           | Irregular Text |        |                               download                                |
+| :------------------------------------------------------------------: | :--: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :-------------------------------------------------------------------: |
+|                                                                      |      | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                                       |
+| [RobustScanner](/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real.py) |  4   | 0.9510 |    0.9011    |  0.9320   |     |  0.7578   |     0.8078     | 0.8750 | [model](https://download.openmmlab.com/mmocr/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real_20220915_152447-7fc35929.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real/20220915_152447.log) |
+| [RobustScanner-TTA](/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real.py) |  4   | 0.9487 |    0.9011    |  0.9261   |     |  0.7805   |     0.8124     | 0.8819 |                                                                       |
+
+## References
+
+<a id="1">\[1\]</a> Li, Hui and Wang, Peng and Shen, Chunhua and Zhang, Guyu. Show, attend and read: A simple and strong baseline for irregular text recognition. In AAAI 2019.
+
+## Citation
+
+```bibtex
+@inproceedings{yue2020robustscanner,
+  title={RobustScanner: Dynamically Enhancing Positional Clues for Robust Text Recognition},
+  author={Yue, Xiaoyu and Kuang, Zhanghui and Lin, Chenhao and Sun, Hongbin and Zhang, Wayne},
+  booktitle={European Conference on Computer Vision},
+  year={2020}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/robust_scanner/_base_robustscanner_resnet31.py b/mmocr-dev-1.x/configs/textrecog/robust_scanner/_base_robustscanner_resnet31.py
new file mode 100644
index 0000000000000000000000000000000000000000..357794016f7891234d0e54bfd5fad96a09eed76c
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/robust_scanner/_base_robustscanner_resnet31.py
@@ -0,0 +1,117 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/english_digits_symbols.txt',
+    with_start=True,
+    with_end=True,
+    same_start_end=True,
+    with_padding=True,
+    with_unknown=True)
+
+model = dict(
+    type='RobustScanner',
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[127, 127, 127],
+        std=[127, 127, 127]),
+    backbone=dict(type='ResNet31OCR'),
+    encoder=dict(
+        type='ChannelReductionEncoder', in_channels=512, out_channels=128),
+    decoder=dict(
+        type='RobustScannerFuser',
+        hybrid_decoder=dict(
+            type='SequenceAttentionDecoder', dim_input=512, dim_model=128),
+        position_decoder=dict(
+            type='PositionAttentionDecoder', dim_input=512, dim_model=128),
+        in_channels=[512, 512],
+        postprocessor=dict(type='AttentionPostprocessor'),
+        module_loss=dict(
+            type='CEModuleLoss', ignore_first_char=True, reduction='mean'),
+        dictionary=dictionary,
+        max_seq_len=30))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=2),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='RescaleToHeight',
+        height=48,
+        min_width=48,
+        max_width=160,
+        width_divisor=4),
+    dict(type='PadToWidth', width=160),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='RescaleToHeight',
+        height=48,
+        min_width=48,
+        max_width=160,
+        width_divisor=4),
+    dict(type='PadToWidth', width=160),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [
+                dict(
+                    type='RescaleToHeight',
+                    height=48,
+                    min_width=48,
+                    max_width=160,
+                    width_divisor=4),
+            ],
+            [dict(type='PadToWidth', width=160)],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/robust_scanner/metafile.yml b/mmocr-dev-1.x/configs/textrecog/robust_scanner/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..795d627eab5d13761ae06135228a029a766e5b3d
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/robust_scanner/metafile.yml
@@ -0,0 +1,59 @@
+Collections:
+- Name: RobustScanner
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adam
+    Epochs: 5
+    Batch Size: 1024
+    Training Resources: 4x NVIDIA A100-SXM4-80GB
+    Architecture:
+      - ResNet31OCR
+      - ChannelReductionEncoder
+      - RobustScannerDecoder
+  Paper:
+    URL: https://arxiv.org/pdf/2007.07542.pdf
+    Title: 'RobustScanner: Dynamically Enhancing Positional Clues for Robust Text Recognition'
+  README: configs/textrecog/robust_scanner/README.md
+
+Models:
+  - Name: robustscanner_resnet31_5e_st-sub_mj-sub_sa_real
+    Alias: RobustScanner
+    In Collection: RobustScanner
+    Config: configs/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real.py
+    Metadata:
+      Training Data:
+        - ICDAR2011
+        - ICDAR2013
+        - ICDAR2015
+        - COCO text
+        - IIIT5K
+        - SynthText
+        - SynthAdd
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9510
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8934
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9320
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7559
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8078
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8715
+    Weights: https://download.openmmlab.com/mmocr/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real_20220915_152447-7fc35929.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real.py b/mmocr-dev-1.x/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real.py
new file mode 100644
index 0000000000000000000000000000000000000000..c51918dbef95a804747013ff0c4827052c35f8a1
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_st-sub_mj-sub_sa_real.py
@@ -0,0 +1,70 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/synthtext_add.py',
+    '../_base_/datasets/coco_text_v1.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2011.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_step_5e.py',
+    '_base_robustscanner_resnet31.py',
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=100))
+
+# dataset settings
+train_list = [
+    _base_.icdar2011_textrecog_train, _base_.icdar2013_textrecog_train,
+    _base_.icdar2015_textrecog_train, _base_.cocotextv1_textrecog_train,
+    _base_.iiit5k_textrecog_train, _base_.mjsynth_sub_textrecog_train,
+    _base_.synthtext_sub_textrecog_train, _base_.synthtext_add_textrecog_train
+]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_list = [
+    dict(
+        type='RepeatDataset',
+        dataset=dict(
+            type='ConcatDataset',
+            datasets=train_list[:5],
+            pipeline=_base_.train_pipeline),
+        times=20),
+    dict(
+        type='ConcatDataset',
+        datasets=train_list[5:],
+        pipeline=_base_.train_pipeline),
+]
+
+train_dataloader = dict(
+    batch_size=64 * 4,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(type='ConcatDataset', datasets=train_list, verify_meta=False))
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=64 * 16)
diff --git a/mmocr-dev-1.x/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_toy.py b/mmocr-dev-1.x/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_toy.py
new file mode 100644
index 0000000000000000000000000000000000000000..c6e999dca97ccdeaf48683fdfcaf9b8188358cd7
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/robust_scanner/robustscanner_resnet31_5e_toy.py
@@ -0,0 +1,37 @@
+_base_ = [
+    '../_base_/datasets/toy_data.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_step_5e.py',
+    '_base_robustscanner_resnet31.py',
+]
+
+# dataset settings
+train_list = [_base_.toy_rec_train]
+test_list = [_base_.toy_rec_test]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=100))
+
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=train_list,
+        pipeline=_base_.train_pipeline))
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+test_dataloader = val_dataloader
+
+val_evaluator = dict(dataset_prefixes=['Toy'])
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/configs/textrecog/sar/README.md b/mmocr-dev-1.x/configs/textrecog/sar/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..5678c80f11aad6f59306795a71d58efdfa434abd
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/sar/README.md
@@ -0,0 +1,63 @@
+# SAR
+
+> [Show, Attend and Read: A Simple and Strong Baseline for Irregular Text Recognition](https://arxiv.org/abs/1811.00751)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Recognizing irregular text in natural scene images is challenging due to the large variance in text appearance, such as curvature, orientation and distortion. Most existing approaches rely heavily on sophisticated model designs and/or extra fine-grained annotations, which, to some extent, increase the difficulty in algorithm implementation and data collection. In this work, we propose an easy-to-implement strong baseline for irregular scene text recognition, using off-the-shelf neural network components and only word-level annotations. It is composed of a 31-layer ResNet, an LSTM-based encoder-decoder framework and a 2-dimensional attention module. Despite its simplicity, the proposed method is robust and achieves state-of-the-art performance on both regular and irregular scene text recognition benchmarks.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142798157-ac68907f-5a8a-473f-a29f-f0532b7fdba0.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+|  trainset  | instance_num | repeat_num |           source           |
+| :--------: | :----------: | :--------: | :------------------------: |
+| icdar_2011 |     3567     |     20     |            real            |
+| icdar_2013 |     848      |     20     |            real            |
+| icdar2015  |     4468     |     20     |            real            |
+| coco_text  |    42142     |     20     |            real            |
+|   IIIT5K   |     2000     |     20     |            real            |
+| SynthText  |   2400000    |     1      |           synth            |
+|  SynthAdd  |   1216889    |     1      | synth, 1.6m in [\[1\]](#1) |
+|   Syn90k   |   2400000    |     1      |           synth            |
+
+### Test Dataset
+
+| testset | instance_num |             type              |
+| :-----: | :----------: | :---------------------------: |
+| IIIT5K  |     3000     |            regular            |
+|   SVT   |     647      |            regular            |
+|  IC13   |     1015     |            regular            |
+|  IC15   |     2077     |           irregular           |
+|  SVTP   |     645      | irregular, 639 in [\[1\]](#1) |
+|  CT80   |     288      |           irregular           |
+
+## Results and Models
+
+|                        Methods                         |  Backbone   |       Decoder        |        | Regular Text |           |     |           | Irregular Text |        |                         download                         |
+| :----------------------------------------------------: | :---------: | :------------------: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :------------------------------------------------------: |
+|                                                        |             |                      | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                          |
+| [SAR](/configs/textrecog/sar/sar_r31_parallel_decoder_academic.py) | R31-1/8-1/4 |  ParallelSARDecoder  | 0.9533 |    0.8964    |  0.9369   |     |  0.7602   |     0.8326     | 0.9062 | [model](https://download.openmmlab.com/mmocr/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real_20220915_171910-04eb4e75.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real/20220915_171910.log) |
+| [SAR-TTA](/configs/textrecog/sar/sar_r31_parallel_decoder_academic.py) | R31-1/8-1/4 |  ParallelSARDecoder  | 0.9510 |    0.8964    |  0.9340   |     |  0.7862   |     0.8372     | 0.9132 |                                                          |
+| [SAR](/configs/textrecog/sar/sar_r31_sequential_decoder_academic.py) | R31-1/8-1/4 | SequentialSARDecoder | 0.9553 |    0.9073    |  0.9409   |     |  0.7761   |     0.8093     | 0.8958 | [model](https://download.openmmlab.com/mmocr/textrecog/sar/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real_20220915_185451-1fd6b1fc.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/sar/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real/20220915_185451.log) |
+| [SAR-TTA](/configs/textrecog/sar/sar_r31_sequential_decoder_academic.py) | R31-1/8-1/4 | SequentialSARDecoder | 0.9530 |    0.9073    |  0.9389   |     |  0.8002   |     0.8124     | 0.9028 |                                                          |
+
+## Citation
+
+```bibtex
+@inproceedings{li2019show,
+  title={Show, attend and read: A simple and strong baseline for irregular text recognition},
+  author={Li, Hui and Wang, Peng and Shen, Chunhua and Zhang, Guyu},
+  booktitle={Proceedings of the AAAI Conference on Artificial Intelligence},
+  volume={33},
+  number={01},
+  pages={8610--8617},
+  year={2019}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/sar/_base_sar_resnet31_parallel-decoder.py b/mmocr-dev-1.x/configs/textrecog/sar/_base_sar_resnet31_parallel-decoder.py
new file mode 100755
index 0000000000000000000000000000000000000000..8e8df4850e323c3e88370612ae85d67c8a4d81fa
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/sar/_base_sar_resnet31_parallel-decoder.py
@@ -0,0 +1,123 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/english_digits_symbols.txt',
+    with_start=True,
+    with_end=True,
+    same_start_end=True,
+    with_padding=True,
+    with_unknown=True)
+
+model = dict(
+    type='SARNet',
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[127, 127, 127],
+        std=[127, 127, 127]),
+    backbone=dict(type='ResNet31OCR'),
+    encoder=dict(
+        type='SAREncoder',
+        enc_bi_rnn=False,
+        enc_do_rnn=0.1,
+        enc_gru=False,
+    ),
+    decoder=dict(
+        type='ParallelSARDecoder',
+        enc_bi_rnn=False,
+        dec_bi_rnn=False,
+        dec_do_rnn=0,
+        dec_gru=False,
+        pred_dropout=0.1,
+        d_k=512,
+        pred_concat=True,
+        postprocessor=dict(type='AttentionPostprocessor'),
+        module_loss=dict(
+            type='CEModuleLoss', ignore_first_char=True, reduction='mean'),
+        dictionary=dictionary,
+        max_seq_len=30))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=2),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='RescaleToHeight',
+        height=48,
+        min_width=48,
+        max_width=160,
+        width_divisor=4),
+    dict(type='PadToWidth', width=160),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='RescaleToHeight',
+        height=48,
+        min_width=48,
+        max_width=160,
+        width_divisor=4),
+    dict(type='PadToWidth', width=160),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [
+                dict(
+                    type='RescaleToHeight',
+                    height=48,
+                    min_width=48,
+                    max_width=160,
+                    width_divisor=4)
+            ],
+            [dict(type='PadToWidth', width=160)],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/sar/metafile.yml b/mmocr-dev-1.x/configs/textrecog/sar/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d8680313dea4e962493feeea12fdb08d5eb71c5c
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/sar/metafile.yml
@@ -0,0 +1,99 @@
+Collections:
+- Name: SAR
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adam
+    Training Resources: 8x NVIDIA A100-SXM4-80GB
+    Epochs: 5
+    Batch Size: 3072
+    Architecture:
+      - ResNet31OCR
+      - SAREncoder
+      - ParallelSARDecoder
+  Paper:
+    URL: https://arxiv.org/pdf/1811.00751.pdf
+    Title: 'Show, Attend and Read:A Simple and Strong Baseline for Irregular Text Recognition'
+  README: configs/textrecog/sar/README.md
+
+Models:
+  - Name: sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real
+    Alias: SAR
+    In Collection: SAR
+    Config: configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py
+    Metadata:
+      Training Data:
+        - ICDAR2011
+        - ICDAR2013
+        - ICDAR2015
+        - COCO text
+        - IIIT5K
+        - SynthText
+        - SynthAdd
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9533
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8841
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9369
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7602
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8326
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.9028
+    Weights: https://download.openmmlab.com/mmocr/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real_20220915_171910-04eb4e75.pth
+
+  - Name: sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real
+    In Collection: SAR
+    Config: configs/textrecog/sar/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real.py
+    Metadata:
+      Training Data:
+        - ICDAR2011
+        - ICDAR2013
+        - ICDAR2015
+        - COCO text
+        - IIIT5K
+        - SynthText
+        - SynthAdd
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9553
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8717
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9409
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7737
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8093
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8924
+    Weights: https://download.openmmlab.com/mmocr/textrecog/sar/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real_20220915_185451-1fd6b1fc.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py
new file mode 100644
index 0000000000000000000000000000000000000000..a57ad477a42f92b9000654b08952b2697b5fe2e0
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py
@@ -0,0 +1,69 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/synthtext_add.py',
+    '../_base_/datasets/coco_text_v1.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2011.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_step_5e.py',
+    '_base_sar_resnet31_parallel-decoder.py',
+]
+
+default_hooks = dict(logger=dict(type='LoggerHook', interval=100))
+
+# dataset settings
+train_list = [
+    _base_.icdar2011_textrecog_train, _base_.icdar2013_textrecog_train,
+    _base_.icdar2015_textrecog_train, _base_.cocotextv1_textrecog_train,
+    _base_.iiit5k_textrecog_train, _base_.mjsynth_sub_textrecog_train,
+    _base_.synthtext_sub_textrecog_train, _base_.synthtext_add_textrecog_train
+]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_list = [
+    dict(
+        type='RepeatDataset',
+        dataset=dict(
+            type='ConcatDataset',
+            datasets=train_list[:5],
+            pipeline=_base_.train_pipeline),
+        times=20),
+    dict(
+        type='ConcatDataset',
+        datasets=train_list[5:],
+        pipeline=_base_.train_pipeline),
+]
+
+train_dataloader = dict(
+    batch_size=64 * 6,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(type='ConcatDataset', datasets=train_list, verify_meta=False))
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=64 * 48)
diff --git a/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_toy.py b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_toy.py
new file mode 100755
index 0000000000000000000000000000000000000000..351f079d1cb42542a334ed8e574643286698795b
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_toy.py
@@ -0,0 +1,36 @@
+_base_ = [
+    '../_base_/datasets/toy_data.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_step_5e.py',
+    '_base_sar_resnet31_parallel-decoder.py',
+]
+
+# dataset settings
+train_list = [_base_.toy_rec_train]
+test_list = [_base_.toy_rec_test]
+default_hooks = dict(logger=dict(type='LoggerHook', interval=1))
+
+train_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=train_list,
+        pipeline=_base_.train_pipeline))
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+test_dataloader = val_dataloader
+
+val_evaluator = dict(dataset_prefixes=['Toy'])
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real.py b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real.py
new file mode 100644
index 0000000000000000000000000000000000000000..179408886d8b4e1679ca52c1721a1f9e7582b606
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_sequential-decoder_5e_st-sub_mj-sub_sa_real.py
@@ -0,0 +1,5 @@
+_base_ = [
+    'sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py',
+]
+
+model = dict(decoder=dict(type='SequentialSARDecoder'))
diff --git a/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_sequential-decoder_5e_union14m.py b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_sequential-decoder_5e_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..0739a86dc499e403a287c6b34d65498daa52c598
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/sar/sar_resnet31_sequential-decoder_5e_union14m.py
@@ -0,0 +1,111 @@
+_base_ = [
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_step_5e.py',
+    '_base_sar_resnet31_parallel-decoder.py',
+]
+
+_base_.pop('model')
+dictionary = dict(
+    type='Dictionary',
+    dict_file=  # noqa
+    '{{ fileDirname }}/../../../dicts/english_digits_symbols_space.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='SARNet',
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[127, 127, 127],
+        std=[127, 127, 127]),
+    backbone=dict(type='ResNet31OCR'),
+    encoder=dict(
+        type='SAREncoder',
+        enc_bi_rnn=False,
+        enc_do_rnn=0.1,
+        enc_gru=False,
+    ),
+    decoder=dict(
+        type='SequentialSARDecoder',
+        enc_bi_rnn=False,
+        dec_bi_rnn=False,
+        dec_do_rnn=0,
+        dec_gru=False,
+        pred_dropout=0.1,
+        d_k=512,
+        pred_concat=True,
+        postprocessor=dict(type='AttentionPostprocessor'),
+        module_loss=dict(
+            type='CEModuleLoss', ignore_first_char=True, reduction='mean'),
+        dictionary=dictionary,
+        max_seq_len=30))
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=128,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/satrn/README.md b/mmocr-dev-1.x/configs/textrecog/satrn/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..f0421c9e04e4ea4719cf953ed5871808685cb907
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/satrn/README.md
@@ -0,0 +1,53 @@
+# SATRN
+
+> [On Recognizing Texts of Arbitrary Shapes with 2D Self-Attention](https://arxiv.org/abs/1910.04396)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Scene text recognition (STR) is the task of recognizing character sequences in natural scenes. While there have been great advances in STR methods, current methods still fail to recognize texts in arbitrary shapes, such as heavily curved or rotated texts, which are abundant in daily life (e.g. restaurant signs, product labels, company logos, etc). This paper introduces a novel architecture to recognizing texts of arbitrary shapes, named Self-Attention Text Recognition Network (SATRN), which is inspired by the Transformer. SATRN utilizes the self-attention mechanism to describe two-dimensional (2D) spatial dependencies of characters in a scene text image. Exploiting the full-graph propagation of self-attention, SATRN can recognize texts with arbitrary arrangements and large inter-character spacing. As a result, SATRN outperforms existing STR models by a large margin of 5.7 pp on average in "irregular text" benchmarks. We provide empirical analyses that illustrate the inner mechanisms and the extent to which the model is applicable (e.g. rotated and multi-line text). We will open-source the code.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/142798828-cc4ded5d-3fb8-478c-9f3e-74edbcf41982.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+| trainset  | instance_num | repeat_num | source |
+| :-------: | :----------: | :--------: | :----: |
+| SynthText |   7266686    |     1      | synth  |
+|  Syn90k   |   8919273    |     1      | synth  |
+
+### Test Dataset
+
+| testset | instance_num |   type    |
+| :-----: | :----------: | :-------: |
+| IIIT5K  |     3000     |  regular  |
+|   SVT   |     647      |  regular  |
+|  IC13   |     1015     |  regular  |
+|  IC15   |     2077     | irregular |
+|  SVTP   |     645      | irregular |
+|  CT80   |     288      | irregular |
+
+## Results and Models
+
+|                                Methods                                 |        | Regular Text |           |     |           | Irregular Text |        |                                download                                 |
+| :--------------------------------------------------------------------: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :---------------------------------------------------------------------: |
+|                                                                        | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                                         |
+|      [Satrn](/configs/textrecog/satrn/satrn_shallow_5e_st_mj.py)       | 0.9600 |    0.9181    |  0.9606   |     |  0.8045   |     0.8837     | 0.8993 | [model](https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_shallow_5e_st_mj/satrn_shallow_5e_st_mj_20220915_152443-5fd04a4c.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_shallow_5e_st_mj/20220915_152443.log) |
+|    [Satrn-TTA](/configs/textrecog/satrn/satrn_shallow_5e_st_mj.py)     | 0.9530 |    0.9181    |  0.9527   |     |  0.8276   |     0.8884     | 0.9028 |                                                                         |
+| [Satrn_small](/configs/textrecog/satrn/satrn_shallow-small_5e_st_mj.py) | 0.9423 |    0.9011    |  0.9567   |     |  0.7886   |     0.8574     | 0.8472 | [model](https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_shallow-small_5e_st_mj/satrn_shallow-small_5e_st_mj_20220915_152442-5591bf27.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_shallow-small_5e_st_mj/20220915_152442.log) |
+| [Satrn_small-TTA](/configs/textrecog/satrn/satrn_shallow-small_5e_st_mj.py) | 0.9380 |    0.8995    |  0.9488   |     |  0.8122   |     0.8620     | 0.8507 |                                                                         |
+
+## Citation
+
+```bibtex
+@article{junyeop2019recognizing,
+  title={On Recognizing Texts of Arbitrary Shapes with 2D Self-Attention},
+  author={Junyeop Lee, Sungrae Park, Jeonghun Baek, Seong Joon Oh, Seonghyeon Kim, Hwalsuk Lee},
+  year={2019}
+}
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/satrn/_base_satrn_shallow.py b/mmocr-dev-1.x/configs/textrecog/satrn/_base_satrn_shallow.py
new file mode 100644
index 0000000000000000000000000000000000000000..2eb2a05a645c76f250f7453183cbef904985df18
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/satrn/_base_satrn_shallow.py
@@ -0,0 +1,107 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/english_digits_symbols.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+model = dict(
+    type='SATRN',
+    backbone=dict(type='ShallowCNN', input_channels=3, hidden_dim=512),
+    encoder=dict(
+        type='SATRNEncoder',
+        n_layers=12,
+        n_head=8,
+        d_k=512 // 8,
+        d_v=512 // 8,
+        d_model=512,
+        n_position=100,
+        d_inner=512 * 4,
+        dropout=0.1),
+    decoder=dict(
+        type='NRTRDecoder',
+        n_layers=6,
+        d_embedding=512,
+        n_head=8,
+        d_model=512,
+        d_inner=512 * 4,
+        d_k=512 // 8,
+        d_v=512 // 8,
+        module_loss=dict(
+            type='CEModuleLoss', flatten=True, ignore_first_char=True),
+        dictionary=dictionary,
+        max_seq_len=25,
+        postprocessor=dict(type='AttentionPostprocessor')),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=0),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(type='Resize', scale=(100, 32), keep_ratio=False),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='Resize', scale=(100, 32), keep_ratio=False),
+    # add loading annotation after ``Resize`` because ground truth
+    # does not need to do resize data transform
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[
+            [
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=0, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=1, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+                dict(
+                    type='ConditionApply',
+                    true_transforms=[
+                        dict(
+                            type='ImgAugWrapper',
+                            args=[dict(cls='Rot90', k=3, keep_size=False)])
+                    ],
+                    condition="results['img_shape'][1]<results['img_shape'][0]"
+                ),
+            ],
+            [dict(type='Resize', scale=(100, 32), keep_ratio=False)],
+            # add loading annotation after ``Resize`` because ground truth
+            # does not need to do resize data transform
+            [dict(type='LoadOCRAnnotations', with_text=True)],
+            [
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]
+        ])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/satrn/metafile.yml b/mmocr-dev-1.x/configs/textrecog/satrn/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..987e608c54ceb1c267810faf09e376357de2d67d
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/satrn/metafile.yml
@@ -0,0 +1,88 @@
+Collections:
+- Name: SATRN
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adam
+    Training Resources: 4x Tesla A100
+    Epochs: 6
+    Batch Size: 512
+    Architecture:
+      - ShallowCNN
+      - SatrnEncoder
+      - NRTRDecoder
+  Paper:
+    URL: https://arxiv.org/pdf/1910.04396.pdf
+    Title: 'On Recognizing Texts of Arbitrary Shapes with 2D Self-Attention'
+  README: configs/textrecog/satrn/README.md
+
+Models:
+  - Name: satrn_shallow_5e_st_mj
+    Alias: SATRN
+    In Collection: SATRN
+    Config: configs/textrecog/satrn/satrn_shallow_5e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9600
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.9196
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9606
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.8031
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8837
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8993
+    Weights: https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_shallow_5e_st_mj/satrn_shallow_5e_st_mj_20220915_152443-5fd04a4c.pth
+
+  - Name: satrn_shallow-small_5e_st_mj
+    Alias: SATRN_sm
+    In Collection: SATRN
+    Config: configs/textrecog/satrn/satrn_shallow-small_5e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.9423
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.8995
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9567
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7877
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8574
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8507
+    Weights: https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_shallow-small_5e_st_mj/satrn_shallow-small_5e_st_mj_20220915_152442-5591bf27.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow-small_5e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow-small_5e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..a72201c9cc10a36a281b7ea830d61041fbff5831
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow-small_5e_st_mj.py
@@ -0,0 +1,23 @@
+_base_ = ['satrn_shallow_5e_st_mj.py']
+
+model = dict(
+    backbone=dict(type='ShallowCNN', input_channels=3, hidden_dim=256),
+    encoder=dict(
+        type='SATRNEncoder',
+        n_layers=6,
+        n_head=8,
+        d_k=256 // 8,
+        d_v=256 // 8,
+        d_model=256,
+        n_position=100,
+        d_inner=256 * 4,
+        dropout=0.1),
+    decoder=dict(
+        type='NRTRDecoder',
+        n_layers=6,
+        d_embedding=256,
+        n_head=8,
+        d_model=256,
+        d_inner=256 * 4,
+        d_k=256 // 8,
+        d_v=256 // 8))
diff --git a/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow_5e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow_5e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..32bbf0b87e3e00a868c210946162f25f0d2aadb2
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow_5e_st_mj.py
@@ -0,0 +1,54 @@
+_base_ = [
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_step_5e.py',
+    '_base_satrn_shallow.py',
+]
+
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=20, val_interval=1)
+
+# dataset settings
+train_list = [_base_.mjsynth_textrecog_train, _base_.synthtext_textrecog_train]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+# optimizer
+optim_wrapper = dict(type='OptimWrapper', optimizer=dict(type='Adam', lr=3e-4))
+
+train_dataloader = dict(
+    batch_size=128,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+auto_scale_lr = dict(base_batch_size=64 * 8)
diff --git a/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow_5e_union14m.py b/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow_5e_union14m.py
new file mode 100644
index 0000000000000000000000000000000000000000..4dc9b1e7cae288dd15227acd62468ade6b192bca
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/satrn/satrn_shallow_5e_union14m.py
@@ -0,0 +1,87 @@
+_base_ = [
+    '../_base_/datasets/union14m_train.py',
+    '../_base_/datasets/union14m_benchmark.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adam_step_5e.py',
+    '_base_satrn_shallow.py',
+]
+
+dictionary = dict(
+    type='Dictionary',
+    dict_file=  # noqa
+    '{{ fileDirname }}/../../../dicts/english_digits_symbols_space.txt',
+    with_padding=True,
+    with_unknown=True,
+    same_start_end=True,
+    with_start=True,
+    with_end=True)
+
+# dataset settings
+train_list = [
+    _base_.union14m_challenging, _base_.union14m_hard, _base_.union14m_medium,
+    _base_.union14m_normal, _base_.union14m_easy
+]
+val_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+test_list = [
+    _base_.union14m_benchmark_artistic,
+    _base_.union14m_benchmark_multi_oriented,
+    _base_.union14m_benchmark_contextless,
+    _base_.union14m_benchmark_curve,
+    _base_.union14m_benchmark_incomplete,
+    _base_.union14m_benchmark_incomplete_ori,
+    _base_.union14m_benchmark_multi_words,
+    _base_.union14m_benchmark_salient,
+    _base_.union14m_benchmark_general,
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+    type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+val_dataset = dict(
+    type='ConcatDataset', datasets=val_list, pipeline=_base_.test_pipeline)
+
+# optimizer
+optim_wrapper = dict(type='OptimWrapper', optimizer=dict(type='Adam', lr=3e-4))
+
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=24,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=val_dataset)
+
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = dict(dataset_prefixes=[
+    'artistic', 'multi-oriented', 'contextless', 'curve', 'incomplete',
+    'incomplete-ori', 'multi-words', 'salient', 'general'
+])
diff --git a/mmocr-dev-1.x/configs/textrecog/svtr/README.md b/mmocr-dev-1.x/configs/textrecog/svtr/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..096b8b8e70928df95874281f846f8d76d4b03e92
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/svtr/README.md
@@ -0,0 +1,69 @@
+# SVTR
+
+> [SVTR: Scene Text Recognition with a Single Visual Model](https://arxiv.org/abs/2205.00159)
+
+<!-- [ALGORITHM] -->
+
+## Abstract
+
+Dominant scene text recognition models commonly contain two building blocks, a visual model for feature extraction and a sequence model for text transcription. This hybrid architecture, although accurate, is complex and less efficient. In this study, we propose a Single Visual model for Scene Text recognition within the patch-wise image tokenization framework, which dispenses with the sequential modeling entirely. The method, termed SVTR, firstly decomposes an image text into small patches named character components. Afterward, hierarchical stages are recurrently carried out by component-level mixing, merging and/or combining. Global and local mixing blocks are devised to perceive the inter-character and intra-character patterns, leading to a multi-grained character component perception. Thus, characters are recognized by a simple linear prediction. Experimental results on both English and Chinese scene text recognition tasks demonstrate the effectiveness of SVTR. SVTR-L (Large) achieves highly competitive accuracy in English and outperforms existing methods by a large margin in Chinese, while running faster. In addition, SVTR-T (Tiny) is an effective and much smaller model, which shows appealing speed at inference.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/22607038/210541576-025df5d5-f4d2-4037-82e0-246cf8cd3c25.png"/>
+</div>
+
+## Dataset
+
+### Train Dataset
+
+| trainset  | instance_num | repeat_num | source |
+| :-------: | :----------: | :--------: | :----: |
+| SynthText |   7266686    |     1      | synth  |
+|  Syn90k   |   8919273    |     1      | synth  |
+
+### Test Dataset
+
+| testset | instance_num |   type    |
+| :-----: | :----------: | :-------: |
+| IIIT5K  |     3000     |  regular  |
+|   SVT   |     647      |  regular  |
+|  IC13   |     1015     |  regular  |
+|  IC15   |     2077     | irregular |
+|  SVTP   |     645      | irregular |
+|  CT80   |     288      | irregular |
+
+## Results and Models
+
+|                              Methods                              |        | Regular Text |           |     |           | Irregular Text |        |                                   download                                   |
+| :---------------------------------------------------------------: | :----: | :----------: | :-------: | :-: | :-------: | :------------: | :----: | :--------------------------------------------------------------------------: |
+|                                                                   | IIIT5K |     SVT      | IC13-1015 |     | IC15-2077 |      SVTP      |  CT80  |                                                                              |
+|    [SVTR-tiny](/configs/textrecog/svtr/svtr-tiny_20e_st_mj.py)    |   -    |      -       |     -     |     |     -     |       -        |   -    |                                      -                                       |
+|   [SVTR-small](/configs/textrecog/svtr/svtr-small_20e_st_mj.py)   | 0.8553 |    0.9026    |  0.9448   |     |  0.7496   |     0.8496     | 0.8854 | [model](https://download.openmmlab.com/mmocr/textrecog/svtr/svtr-small_20e_st_mj/svtr-small_20e_st_mj-35d800d6.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/svtr/svtr-small_20e_st_mj/20230105_184454.log) |
+| [SVTR-small-TTA](/configs/textrecog/svtr/svtr-small_20e_st_mj.py) | 0.8397 |    0.8964    |  0.9241   |     |  0.7597   |     0.8124     | 0.8646 |                                                                              |
+|    [SVTR-base](/configs/textrecog/svtr/svtr-base_20e_st_mj.py)    | 0.8570 |    0.9181    |  0.9438   |     |  0.7448   |     0.8388     | 0.9028 | [model](https://download.openmmlab.com/mmocr/textrecog/svtr/svtr-base_20e_st_mj/svtr-base_20e_st_mj-ea500101.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/svtr/svtr-base_20e_st_mj/20221227_175415.log) |
+|  [SVTR-base-TTA](/configs/textrecog/svtr/svtr-base_20e_st_mj.py)  | 0.8517 |    0.9011    |  0.9379   |     |  0.7569   |     0.8279     | 0.8819 |                                                                              |
+|   [SVTR-large](/configs/textrecog/svtr/svtr-large_20e_st_mj.py)   |   -    |      -       |     -     |     |     -     |       -        |   -    |                                      -                                       |
+
+```{note}
+The implementation and configuration follow the original code and paper, but there is still a gap between the reproduced results and the official ones. We appreciate any suggestions to improve its performance.
+```
+
+## Citation
+
+```bibtex
+@inproceedings{ijcai2022p124,
+  title     = {SVTR: Scene Text Recognition with a Single Visual Model},
+  author    = {Du, Yongkun and Chen, Zhineng and Jia, Caiyan and Yin, Xiaoting and Zheng, Tianlun and Li, Chenxia and Du, Yuning and Jiang, Yu-Gang},
+  booktitle = {Proceedings of the Thirty-First International Joint Conference on
+               Artificial Intelligence, {IJCAI-22}},
+  publisher = {International Joint Conferences on Artificial Intelligence Organization},
+  editor    = {Lud De Raedt},
+  pages     = {884--890},
+  year      = {2022},
+  month     = {7},
+  note      = {Main Track},
+  doi       = {10.24963/ijcai.2022/124},
+  url       = {https://doi.org/10.24963/ijcai.2022/124},
+}
+
+```
diff --git a/mmocr-dev-1.x/configs/textrecog/svtr/_base_svtr-tiny.py b/mmocr-dev-1.x/configs/textrecog/svtr/_base_svtr-tiny.py
new file mode 100644
index 0000000000000000000000000000000000000000..4f1fa69e29ef806705e7c48c461fc79069cab6d6
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/svtr/_base_svtr-tiny.py
@@ -0,0 +1,159 @@
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../../dicts/lower_english_digits.txt',
+    with_padding=True,
+    with_unknown=True,
+)
+
+model = dict(
+    type='SVTR',
+    preprocessor=dict(
+        type='STN',
+        in_channels=3,
+        resized_image_size=(32, 64),
+        output_image_size=(32, 100),
+        num_control_points=20,
+        margins=[0.05, 0.05]),
+    encoder=dict(
+        type='SVTREncoder',
+        img_size=[32, 100],
+        in_channels=3,
+        out_channels=192,
+        embed_dims=[64, 128, 256],
+        depth=[3, 6, 3],
+        num_heads=[2, 4, 8],
+        mixer_types=['Local'] * 6 + ['Global'] * 6,
+        window_size=[[7, 11], [7, 11], [7, 11]],
+        merging_types='Conv',
+        prenorm=False,
+        max_seq_len=25),
+    decoder=dict(
+        type='SVTRDecoder',
+        in_channels=192,
+        module_loss=dict(
+            type='CTCModuleLoss', letter_case='lower', zero_infinity=True),
+        postprocessor=dict(type='CTCPostProcessor'),
+        dictionary=dictionary),
+    data_preprocessor=dict(
+        type='TextRecogDataPreprocessor', mean=[127.5], std=[127.5]))
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', ignore_empty=True, min_size=5),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='RandomApply',
+        prob=0.4,
+        transforms=[
+            dict(type='TextRecogGeneralAug', ),
+        ],
+    ),
+    dict(
+        type='RandomApply',
+        prob=0.4,
+        transforms=[
+            dict(type='CropHeight', ),
+        ],
+    ),
+    dict(
+        type='ConditionApply',
+        condition='min(results["img_shape"])>10',
+        true_transforms=dict(
+            type='RandomApply',
+            prob=0.4,
+            transforms=[
+                dict(
+                    type='TorchVisionWrapper',
+                    op='GaussianBlur',
+                    kernel_size=5,
+                    sigma=1,
+                ),
+            ],
+        )),
+    dict(
+        type='RandomApply',
+        prob=0.4,
+        transforms=[
+            dict(
+                type='TorchVisionWrapper',
+                op='ColorJitter',
+                brightness=0.5,
+                saturation=0.5,
+                contrast=0.5,
+                hue=0.1),
+        ]),
+    dict(
+        type='RandomApply',
+        prob=0.4,
+        transforms=[
+            dict(type='ImageContentJitter', ),
+        ],
+    ),
+    dict(
+        type='RandomApply',
+        prob=0.4,
+        transforms=[
+            dict(
+                type='ImgAugWrapper',
+                args=[dict(cls='AdditiveGaussianNoise', scale=0.1**0.5)]),
+        ],
+    ),
+    dict(
+        type='RandomApply',
+        prob=0.4,
+        transforms=[
+            dict(type='ReversePixels', ),
+        ],
+    ),
+    dict(type='Resize', scale=(256, 64)),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='Resize', scale=(256, 64)),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+
+tta_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='TestTimeAug',
+        transforms=[[
+            dict(
+                type='ConditionApply',
+                true_transforms=[
+                    dict(
+                        type='ImgAugWrapper',
+                        args=[dict(cls='Rot90', k=0, keep_size=False)])
+                ],
+                condition="results['img_shape'][1]<results['img_shape'][0]"),
+            dict(
+                type='ConditionApply',
+                true_transforms=[
+                    dict(
+                        type='ImgAugWrapper',
+                        args=[dict(cls='Rot90', k=1, keep_size=False)])
+                ],
+                condition="results['img_shape'][1]<results['img_shape'][0]"),
+            dict(
+                type='ConditionApply',
+                true_transforms=[
+                    dict(
+                        type='ImgAugWrapper',
+                        args=[dict(cls='Rot90', k=3, keep_size=False)])
+                ],
+                condition="results['img_shape'][1]<results['img_shape'][0]"),
+        ], [dict(type='Resize', scale=(256, 64))],
+                    [dict(type='LoadOCRAnnotations', with_text=True)],
+                    [
+                        dict(
+                            type='PackTextRecogInputs',
+                            meta_keys=('img_path', 'ori_shape', 'img_shape',
+                                       'valid_ratio'))
+                    ]])
+]
diff --git a/mmocr-dev-1.x/configs/textrecog/svtr/metafile.yml b/mmocr-dev-1.x/configs/textrecog/svtr/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..ff690156da8b036175b9a3aa0370b5b6322aa5e7
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/svtr/metafile.yml
@@ -0,0 +1,89 @@
+Collections:
+- Name: SVTR
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - AdamW
+    Training Resources: 4x Tesla A100
+    Epochs: 20
+    Batch Size: 2048
+    Architecture:
+      - STN
+      - SVTREncoder
+      - SVTRDecoder
+  Paper:
+    URL: https://arxiv.org/pdf/2205.00159.pdf
+    Title: 'SVTR: Scene Text Recognition with a Single Visual Model'
+  README: configs/textrecog/svtr/README.md
+
+Models:
+  - Name: svtr-small_20e_st_mj
+    Alias: svtr-small
+    In Collection: SVTR
+    Config: configs/textrecog/svtr/svtr-small_20e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.8553
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.9026
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9448
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7496
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8496
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.8854
+    Weights: https://download.openmmlab.com/mmocr/textrecog/svtr/svtr-small_20e_st_mj/svtr-small_20e_st_mj-35d800d6.pth
+
+  - Name: svtr-base_20e_st_mj
+    Alias: svtr-base
+    Batch Size: 1024
+    In Collection: SVTR
+    Config: configs/textrecog/svtr/svtr-base_20e_st_mj.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 0.8570
+      - Task: Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 0.9181
+      - Task: Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 0.9438
+      - Task: Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 0.7448
+      - Task: Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 0.8388
+      - Task: Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 0.9028
+    Weights: https://download.openmmlab.com/mmocr/textrecog/svtr/svtr-base_20e_st_mj/svtr-base_20e_st_mj-ea500101.pth
diff --git a/mmocr-dev-1.x/configs/textrecog/svtr/svtr-base_20e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-base_20e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..7dda8501da953c0541f6055c61c6d0b507789163
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-base_20e_st_mj.py
@@ -0,0 +1,17 @@
+_base_ = [
+    'svtr-tiny_20e_st_mj.py',
+]
+
+model = dict(
+    preprocessor=dict(output_image_size=(48, 160), ),
+    encoder=dict(
+        img_size=[48, 160],
+        max_seq_len=40,
+        out_channels=256,
+        embed_dims=[128, 256, 384],
+        depth=[3, 6, 9],
+        num_heads=[4, 8, 12],
+        mixer_types=['Local'] * 8 + ['Global'] * 10),
+    decoder=dict(in_channels=256))
+
+train_dataloader = dict(batch_size=256, )
diff --git a/mmocr-dev-1.x/configs/textrecog/svtr/svtr-large_20e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-large_20e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..1082d761d53d91ea35a949f02e000b9e0a033926
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-large_20e_st_mj.py
@@ -0,0 +1,19 @@
+_base_ = [
+    'svtr-tiny_20e_st_mj.py',
+]
+
+model = dict(
+    preprocessor=dict(output_image_size=(48, 160), ),
+    encoder=dict(
+        img_size=[48, 160],
+        max_seq_len=40,
+        out_channels=384,
+        embed_dims=[192, 256, 512],
+        depth=[3, 9, 9],
+        num_heads=[6, 8, 16],
+        mixer_types=['Local'] * 10 + ['Global'] * 11),
+    decoder=dict(in_channels=384))
+
+train_dataloader = dict(batch_size=128, )
+
+optim_wrapper = dict(optimizer=dict(lr=2.5 / (10**4)))
diff --git a/mmocr-dev-1.x/configs/textrecog/svtr/svtr-small_20e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-small_20e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..bd73e46f82b5fae242386f7ea1780ba48991fada
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-small_20e_st_mj.py
@@ -0,0 +1,10 @@
+_base_ = [
+    'svtr-tiny_20e_st_mj.py',
+]
+
+model = dict(
+    encoder=dict(
+        embed_dims=[96, 192, 256],
+        depth=[3, 6, 6],
+        num_heads=[3, 6, 8],
+        mixer_types=['Local'] * 8 + ['Global'] * 7))
diff --git a/mmocr-dev-1.x/configs/textrecog/svtr/svtr-tiny_20e_st_mj.py b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-tiny_20e_st_mj.py
new file mode 100644
index 0000000000000000000000000000000000000000..fec2c2ae48d60b555a511c2f61a5ef922a37415e
--- /dev/null
+++ b/mmocr-dev-1.x/configs/textrecog/svtr/svtr-tiny_20e_st_mj.py
@@ -0,0 +1,78 @@
+_base_ = [
+    '_base_svtr-tiny.py',
+    '../_base_/default_runtime.py',
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/synthtext.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/schedules/schedule_adam_base.py',
+]
+
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=20, val_interval=1)
+
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(
+        type='AdamW',
+        lr=5 / (10**4) * 2048 / 2048,
+        betas=(0.9, 0.99),
+        eps=8e-8,
+        weight_decay=0.05))
+
+param_scheduler = [
+    dict(
+        type='LinearLR',
+        start_factor=0.5,
+        end_factor=1.,
+        end=2,
+        verbose=False,
+        convert_to_iter_based=True),
+    dict(
+        type='CosineAnnealingLR',
+        T_max=19,
+        begin=2,
+        end=20,
+        verbose=False,
+        convert_to_iter_based=True),
+]
+
+# dataset settings
+train_list = [_base_.mjsynth_textrecog_train, _base_.synthtext_textrecog_train]
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test,
+    _base_.svt_textrecog_test, _base_.svtp_textrecog_test,
+    _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+val_evaluator = dict(
+    dataset_prefixes=['CUTE80', 'IIIT5K', 'SVT', 'SVTP', 'IC13', 'IC15'])
+test_evaluator = val_evaluator
+
+train_dataloader = dict(
+    batch_size=512,
+    num_workers=24,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=train_list,
+        pipeline=_base_.train_pipeline))
+
+val_dataloader = dict(
+    batch_size=128,
+    num_workers=8,
+    persistent_workers=True,
+    pin_memory=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=test_list,
+        pipeline=_base_.test_pipeline))
+
+test_dataloader = val_dataloader
diff --git a/mmocr-dev-1.x/dataset_zoo/cocotextv2/metafile.yml b/mmocr-dev-1.x/dataset_zoo/cocotextv2/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..74df4a406449510e424f0d53e8ec0d1bdc4dff76
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cocotextv2/metafile.yml
@@ -0,0 +1,27 @@
+Name: 'COCO Text v2'
+Paper:
+  Title: 'COCO-Text: Dataset and Benchmark for Text Detection and Recognition in Natural Images'
+  URL: https://arxiv.org/pdf/1601.07140.pdf
+  Venue: arXiv
+  Year: '2016'
+  BibTeX: '@article{veit2016coco,
+  title={Coco-text: Dataset and benchmark for text detection and recognition in natural images},
+  author={Veit, Andreas and Matera, Tomas and Neumann, Lukas and Matas, Jiri and Belongie, Serge},
+  journal={arXiv preprint arXiv:1601.07140},
+  year={2016}}'
+Data:
+  Website: https://bgshih.github.io/cocotext
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: CC BY 4.0
+    Link: https://creativecommons.org/licenses/by/4.0/
+  Format: .json
diff --git a/mmocr-dev-1.x/dataset_zoo/cocotextv2/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/cocotextv2/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..5ab9b06a85a0cc6a27ddf26699026f1ac8815fd7
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cocotextv2/sample_anno.md
@@ -0,0 +1,36 @@
+**Text Detection/Spotting**
+
+```json
+{
+  "cats": {},
+  "anns": {
+      "45346": {
+          "mask":[468.9,286.7,468.9,295.2,493.0,295.8,493.0,287.2],
+          "class":"machine printed",
+          "bbox":[468.9,286.7,24.1,9.1],
+          "image_id":522579,
+          "id":167312,
+          "language":"english",
+          "area":55.5,
+          "utf8_string":"the",
+          "legibility":"legible"
+      },
+      // ...
+  },
+  "imgs": {
+      "522579": {
+          "file_name":"COCO_train2014_000000522579.jpg",
+          "height":476,
+          "width":640,
+          "id":522579,
+          "set":"train",
+      },
+      // ...
+  },
+  "imgToAnns": {
+      "522579": [167294, 167295, 167296, 167297, 167298, 167299, 167300, 167301, 167302, 167303, 167304, 167305, 167306, 167307, 167308, 167309, 167310, 167311, 167312, 167313, 167314, 167315, 167316, 167317],
+      // ...
+  },
+  "info": {}
+}
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/cocotextv2/textdet.py b/mmocr-dev-1.x/dataset_zoo/cocotextv2/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..f8b5b86337749f201f0731991d810d80c677ef4a
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cocotextv2/textdet.py
@@ -0,0 +1,39 @@
+data_root = 'data/cocotextv2'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='http://images.cocodataset.org/zips/train2014.zip',
+                save_name='cocotextv2_train_img.zip',
+                md5='0da8c0bd3d6becc4dcb32757491aca88',
+                content=['image'],
+                mapping=[[
+                    'cocotextv2_train_img/train2014', 'textdet_imgs/imgs'
+                ]]),
+            dict(
+                url='https://github.com/bgshih/cocotext/releases/download/dl/'
+                'cocotext.v2.zip',
+                save_name='cocotextv2_annotation.zip',
+                md5='5e39f7d6f2f11324c6451e63523c440c',
+                content=['annotation'],
+                mapping=[[
+                    'cocotextv2_annotation/cocotext.v2.json',
+                    'annotations/train.json'
+                ]]),
+        ]),
+    gatherer=dict(
+        type='MonoGatherer',
+        ann_name='train.json',
+        img_dir='textdet_imgs/imgs'),
+    parser=dict(type='COCOTextDetAnnParser', variant='cocotext'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'))
+
+val_preparer = train_preparer
+
+delete = ['annotations', 'cocotextv2_annotation', 'cocotextv2_train_img']
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/cocotextv2/textrecog.py b/mmocr-dev-1.x/dataset_zoo/cocotextv2/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..6299aeb97ea3d9b130ab1f98c4dc0a3b8a9a4032
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cocotextv2/textrecog.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.val_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/cocotextv2/textspotting.py b/mmocr-dev-1.x/dataset_zoo/cocotextv2/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..9a9124fc1ba01ffa6a69ccf383c08d4e4528cc68
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cocotextv2/textspotting.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/ctw1500/metafile.yml b/mmocr-dev-1.x/dataset_zoo/ctw1500/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..58af83679926d2c6950f332eca04216b9f4fba34
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/ctw1500/metafile.yml
@@ -0,0 +1,32 @@
+Name: 'CTW1500'
+Paper:
+  Title: Curved scene text detection via transverse and longitudinal sequence connection
+  URL: https://www.sciencedirect.com/science/article/pii/S0031320319300664
+  Venue: PR
+  Year: '2019'
+  BibTeX: '@article{liu2019curved,
+  title={Curved scene text detection via transverse and longitudinal sequence connection},
+  author={Liu, Yuliang and Jin, Lianwen and Zhang, Shuaitao and Luo, Canjie and Zhang, Sheng},
+  journal={Pattern Recognition},
+  volume={90},
+  pages={337--345},
+  year={2019},
+  publisher={Elsevier}
+}'
+Data:
+  Website: https://github.com/Yuliang-Liu/Curve-Text-Detector
+  Language:
+    - English
+  Scene:
+    - Scene
+  Granularity:
+    - Word
+    - Line
+  Tasks:
+    - textrecog
+    - textdet
+    - textspotting
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .xml
diff --git a/mmocr-dev-1.x/dataset_zoo/ctw1500/textdet.py b/mmocr-dev-1.x/dataset_zoo/ctw1500/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..82783421222d305013e064f43f6cb24162107d70
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/ctw1500/textdet.py
@@ -0,0 +1,76 @@
+data_root = 'data/ctw1500'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://universityofadelaide.box.com/shared/static/'
+                'py5uwlfyyytbb2pxzq9czvu6fuqbjdh8.zip',
+                save_name='ctw1500_train_images.zip',
+                md5='f1453464b764343040644464d5c0c4fa',
+                split=['train'],
+                content=['image'],
+                mapping=[[
+                    'ctw1500_train_images/train_images', 'textdet_imgs/train'
+                ]]),
+            dict(
+                url='https://universityofadelaide.box.com/shared/static/'
+                'jikuazluzyj4lq6umzei7m2ppmt3afyw.zip',
+                save_name='ctw1500_train_labels.zip',
+                md5='d9ba721b25be95c2d78aeb54f812a5b1',
+                split=['train'],
+                content=['annotation'],
+                mapping=[[
+                    'ctw1500_train_labels/ctw1500_train_labels/',
+                    'annotations/train'
+                ]])
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'(\d{4}).jpg', r'\1.xml']),
+    parser=dict(type='CTW1500AnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://universityofadelaide.box.com/shared/static/'
+                't4w48ofnqkdw7jyc4t11nsukoeqk9c3d.zip',
+                save_name='ctw1500_test_images.zip',
+                md5='79103fd77dfdd2c70ae6feb3a2fb4530',
+                split=['test'],
+                content=['image'],
+                mapping=[[
+                    'ctw1500_test_images/test_images', 'textdet_imgs/test'
+                ]]),
+            dict(
+                url='https://cloudstor.aarnet.edu.au/plus/s/uoeFl0pCN9BOCN5/'
+                'download',
+                save_name='ctw1500_test_labels.zip',
+                md5='7f650933a30cf1bcdbb7874e4962a52b',
+                split=['test'],
+                content=['annotation'],
+                mapping=[['ctw1500_test_labels', 'annotations/test']])
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'(\d{4}).jpg', r'000\1.txt']),
+    parser=dict(type='CTW1500AnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+delete = [
+    'ctw1500_train_images', 'ctw1500_test_images', 'annotations',
+    'ctw1500_train_labels', 'ctw1500_test_labels'
+]
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/ctw1500/textrecog.py b/mmocr-dev-1.x/dataset_zoo/ctw1500/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..c4436e074f75cbcfbfc6962a60247dc3084d889f
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/ctw1500/textrecog.py
@@ -0,0 +1,9 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.test_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/ctw1500/textspotting.py b/mmocr-dev-1.x/dataset_zoo/ctw1500/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..55d196d89d15c566fae23ee702c8fca853282c93
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/ctw1500/textspotting.py
@@ -0,0 +1,19 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+
+_base_.test_preparer.obtainer.files.append(
+    dict(
+        url='https://download.openmmlab.com/mmocr/data/1.x/textspotting/'
+        'ctw1500/lexicons.zip',
+        save_name='ctw1500_lexicons.zip',
+        md5='168150ca45da161917bf35a20e45b8d6',
+        content=['lexicons'],
+        mapping=[['ctw1500_lexicons/lexicons', 'lexicons']]))
+
+_base_.delete.append('ctw1500_lexicons')
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/cute80/metafile.yml b/mmocr-dev-1.x/dataset_zoo/cute80/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..32f3a62a0cd10bede3a992af1f5104a7d21785b2
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cute80/metafile.yml
@@ -0,0 +1,29 @@
+Name: 'CUTE80'
+Paper:
+  Title: A Robust Arbitrary Text Detection System for Natural Scene Images
+  URL: http://cs-chan.com/doc/ESWA_2014A.pdf
+  Venue: ESWA
+  Year: '2014'
+  BibTeX: '@article{risnumawan2014robust,
+  title={A robust arbitrary text detection system for natural scene images},
+  author={Risnumawan, Anhar and Shivakumara, Palaiahankote and Chan, Chee Seng and Tan, Chew Lim},
+  journal={Expert Systems with Applications},
+  volume={41},
+  number={18},
+  pages={8027--8048},
+  year={2014},
+  publisher={Elsevier}}'
+Data:
+  Website: http://cs-chan.com/downloads_CUTE80_dataset.html
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textrecog
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/cute80/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/cute80/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..0f08bd6ebeccb51cef5ad8adc5b83935c9cc4a56
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cute80/sample_anno.md
@@ -0,0 +1,10 @@
+**Text Recognition**
+
+```text
+# timage/img_name text 1 text
+
+timage/001.jpg RONALDO 1 RONALDO
+timage/002.jpg 7 1 7
+timage/003.jpg SEACREST 1 SEACREST
+timage/004.jpg BEACH 1 BEACH
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/cute80/textrecog.py b/mmocr-dev-1.x/dataset_zoo/cute80/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..8da3723fdbfc93bc8d2e5bef3b514c9a055f8158
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/cute80/textrecog.py
@@ -0,0 +1,66 @@
+# The official annotations of CUTE80 has some typos, and we have provided
+# the fixed version as done in
+# https://github.com/clovaai/deep-text-recognition-benchmark by default.
+# If you want to use the original version, please comment out the following
+# lines: L10-L31, and uncomment L33-L63
+
+data_root = 'data/cute80'
+cache_path = 'data/cache'
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        data_root=data_root,
+        files=[
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/mixture/ct80/'
+                'timage.tar.gz',
+                save_name='ct80.tar.gz',
+                md5='9f3b1fe0e76f1fdfc70de3a365603d5e',
+                split=['test'],
+                content=['image'],
+                mapping=[['ct80/timage', 'textrecog_imgs/test']]),
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/1.x/recog/ct80/'
+                'textrecog_test.json',
+                save_name='textrecog_test.json',
+                md5='9c5c79d843b900325e7fd453b318cad9',
+                split=['test'],
+                content=['annotation'])
+        ]))
+
+# test_preparer = dict(
+#     obtainer=dict(
+#         type='NaiveDataObtainer',
+#         cache_path=cache_path,
+#         data_root=data_root,
+#         files=[
+#             dict(
+#                 url='https://download.openmmlab.com/mmocr/data/mixture/ct80/'
+#                 'timage.tar.gz',
+#                 save_name='ct80.tar.gz',
+#                 md5='9f3b1fe0e76f1fdfc70de3a365603d5e',
+#                 split=['test'],
+#                 content=['image'],
+#                 mapping=[['ct80/timage', 'textrecog_imgs/test']]),
+#             dict(
+#                 url='https://download.openmmlab.com/mmocr/data/mixture/ct80/'
+#                 'test_label.txt',
+#                 save_name='ct80_test.txt',
+#                 md5='f679dec62916d3268aff9cd81990d260',
+#                 split=['test'],
+#                 content=['annotation'],
+#                 mapping=[['ct80_test.txt', 'annotations/test.txt']])
+#         ]),
+#     gatherer=dict(type='MonoGatherer', ann_name='test.txt'),
+#     parser=dict(
+#         type='ICDARTxtTextRecogAnnParser',
+#         separator=' ',
+#         format='img text ignore1 ignore2'),
+#     packer=dict(type='TextRecogPacker'),
+#     dumper=dict(type='JsonDumper'),
+# )
+delete = ['ct80']
+config_generator = dict(
+    type='TextRecogConfigGenerator', data_root=data_root, train_anns=None)
diff --git a/mmocr-dev-1.x/dataset_zoo/funsd/metafile.yml b/mmocr-dev-1.x/dataset_zoo/funsd/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..b31b7f4e91f6dbf63e298ac3e7e748d37c425bd3
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/funsd/metafile.yml
@@ -0,0 +1,27 @@
+Name: 'FUNSD'
+Paper:
+  Title: 'FUNSD: A Dataset for Form Understanding in Noisy Scanned Documents'
+  URL: https://arxiv.org/pdf/1905.13538.pdf
+  Venue: ICDAR
+  Year: '2019'
+  BibTeX: '@inproceedings{jaume2019,
+    title = {FUNSD: A Dataset for Form Understanding in Noisy Scanned Documents},
+    author = {Guillaume Jaume, Hazim Kemal Ekenel, Jean-Philippe Thiran},
+    booktitle = {Accepted to ICDAR-OST},
+    year = {2019}}'
+Data:
+  Website: https://guillaumejaume.github.io/FUNSD/
+  Language:
+    - English
+  Scene:
+    - Document
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: FUNSD License
+    Link: https://guillaumejaume.github.io/FUNSD/work/
+  Format: .json
diff --git a/mmocr-dev-1.x/dataset_zoo/funsd/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/funsd/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..36b287cc26a89b0cebf99a8975de754115c63d05
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/funsd/sample_anno.md
@@ -0,0 +1,73 @@
+**Text Detection/Recognition/Spotting**
+
+```json
+{
+  "form": [
+    {
+      "id": 0,
+      "text": "Registration No.",
+      "box": [
+          94,
+          169,
+          191,
+          186
+      ],
+      "linking": [
+          [
+              0,
+              1
+          ]
+      ],
+      "label": "question",
+      "words": [
+          {
+              "text": "Registration",
+              "box": [
+                  94,
+                  169,
+                  168,
+                  186
+              ]
+          },
+          {
+              "text": "No.",
+              "box": [
+                  170,
+                  169,
+                  191,
+                  183
+              ]
+          }
+      ]
+    },
+    {
+      "id": 1,
+      "text": "533",
+      "box": [
+          209,
+          169,
+          236,
+          182
+      ],
+      "label": "answer",
+      "words": [
+          {
+              "box": [
+                  209,
+                  169,
+                  236,
+                  182
+              ],
+              "text": "533"
+          }
+      ],
+      "linking": [
+          [
+              0,
+              1
+          ]
+      ]
+    }
+  ]
+}
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/funsd/textdet.py b/mmocr-dev-1.x/dataset_zoo/funsd/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..a3b88ab86d3f1ece108091d95bfe7a4393062b9f
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/funsd/textdet.py
@@ -0,0 +1,62 @@
+data_root = 'data/funsd'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        data_root=data_root,
+        files=[
+            dict(
+                url='https://guillaumejaume.github.io/FUNSD/dataset.zip',
+                save_name='funsd.zip',
+                md5='e05de47de238aa343bf55d8807d659a9',
+                content=['image', 'annotation'],
+                mapping=[
+                    [
+                        'funsd/dataset/training_data/images',
+                        'textdet_imgs/train'
+                    ],
+                    [
+                        'funsd/dataset/training_data/annotations',
+                        'annotations/train'
+                    ],
+                ]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.png'],
+        rule=[r'(\w+)\.png', r'\1.json']),
+    parser=dict(type='FUNSDTextDetAnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://guillaumejaume.github.io/FUNSD/dataset.zip',
+                save_name='funsd.zip',
+                md5='e05de47de238aa343bf55d8807d659a9',
+                content=['image', 'annotation'],
+                mapping=[
+                    ['funsd/dataset/testing_data/images', 'textdet_imgs/test'],
+                    [
+                        'funsd/dataset/testing_data/annotations',
+                        'annotations/test'
+                    ],
+                ]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.png'],
+        rule=[r'(\w+)\.png', r'\1.json']),
+    parser=dict(type='FUNSDTextDetAnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+delete = ['annotations', 'funsd']
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/funsd/textrecog.py b/mmocr-dev-1.x/dataset_zoo/funsd/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..c4436e074f75cbcfbfc6962a60247dc3084d889f
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/funsd/textrecog.py
@@ -0,0 +1,9 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.test_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/funsd/textspotting.py b/mmocr-dev-1.x/dataset_zoo/funsd/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..4681c61afdb6c6ed2268b530e1243a232626a665
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/funsd/textspotting.py
@@ -0,0 +1,8 @@
+_base_ = ['textdet.py']
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2013/metafile.yml b/mmocr-dev-1.x/dataset_zoo/icdar2013/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d9fdee5dd1371c4906d9c270163747fae5a88765
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2013/metafile.yml
@@ -0,0 +1,29 @@
+Name: 'Incidental Scene Text IC13'
+Paper:
+  Title: ICDAR 2013 Robust Reading Competition
+  URL: https://www.imlab.jp/publication_data/1352/icdar_competition_report.pdf
+  Venue: ICDAR
+  Year: '2013'
+  BibTeX: '@inproceedings{karatzas2013icdar,
+  title={ICDAR 2013 robust reading competition},
+  author={Karatzas, Dimosthenis and Shafait, Faisal and Uchida, Seiichi and Iwamura, Masakazu and i Bigorda, Lluis Gomez and Mestre, Sergi Robles and Mas, Joan and Mota, David Fernandez and Almazan, Jon Almazan and De Las Heras, Lluis Pere},
+  booktitle={2013 12th international conference on document analysis and recognition},
+  pages={1484--1493},
+  year={2013},
+  organization={IEEE}}'
+Data:
+  Website: https://rrc.cvc.uab.es/?ch=2
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2013/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/icdar2013/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..657e8ff128f087fee36e664e12e39e30178cce74
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2013/sample_anno.md
@@ -0,0 +1,27 @@
+**Text Detection**
+
+```text
+# train split
+# x1 y1 x2 y2 "transcript"
+
+158 128 411 181 "Footpath"
+443 128 501 169 "To"
+64 200 363 243 "Colchester"
+
+# test split
+# x1, y1, x2, y2, "transcript"
+
+38, 43, 920, 215, "Tiredness"
+275, 264, 665, 450, "kills"
+0, 699, 77, 830, "A"
+```
+
+**Text Recognition**
+
+```text
+# img_name, "text"
+
+word_1.png, "PROPER"
+word_2.png, "FOOD"
+word_3.png, "PRONTO"
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2013/textdet.py b/mmocr-dev-1.x/dataset_zoo/icdar2013/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..10f24d5277d7edb9cc9e7c775d32b8e55d5646c5
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2013/textdet.py
@@ -0,0 +1,75 @@
+data_root = 'data/icdar2013'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Training_Task12_Images.zip',
+                save_name='ic13_textdet_train_img.zip',
+                md5='a443b9649fda4229c9bc52751bad08fb',
+                content=['image'],
+                mapping=[['ic13_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Training_Task1_GT.zip',
+                save_name='ic13_textdet_train_gt.zip',
+                md5='f3a425284a66cd67f455d389c972cce4',
+                content=['annotation'],
+                mapping=[['ic13_textdet_train_gt', 'annotations/train']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg'],
+        rule=[r'(\w+)\.jpg', r'gt_\1.txt']),
+    parser=dict(
+        type='ICDARTxtTextDetAnnParser',
+        remove_strs=[',', '"'],
+        format='x1 y1 x2 y2 trans',
+        separator=' ',
+        mode='xyxy'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Test_Task12_Images.zip',
+                save_name='ic13_textdet_test_img.zip',
+                md5='af2e9f070c4c6a1c7bdb7b36bacf23e3',
+                content=['image'],
+                mapping=[['ic13_textdet_test_img', 'textdet_imgs/test']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Test_Task1_GT.zip',
+                save_name='ic13_textdet_test_gt.zip',
+                md5='3191c34cd6ac28b60f5a7db7030190fb',
+                content=['annotation'],
+                mapping=[['ic13_textdet_test_gt', 'annotations/test']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg'],
+        rule=[r'(\w+)\.jpg', r'gt_\1.txt']),
+    parser=dict(
+        type='ICDARTxtTextDetAnnParser',
+        remove_strs=[',', '"'],
+        format='x1 y1 x2 y2 trans',
+        separator=' ',
+        mode='xyxy'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+delete = [
+    'annotations', 'ic13_textdet_train_img', 'ic13_textdet_train_gt',
+    'ic13_textdet_test_img', 'ic13_textdet_test_gt'
+]
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2013/textrecog.py b/mmocr-dev-1.x/dataset_zoo/icdar2013/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..23fd969fb2921037dfe4738a630fc4a9e14fbe70
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2013/textrecog.py
@@ -0,0 +1,126 @@
+# This configuration prepares the ICDAR13 857 and 1015
+# version, and uses ICDAR13 1015 version by default.
+# You may uncomment the lines if you want to you the original version,
+# which contains 1095 samples.
+# You can check out the generated base config and use the 857
+# version by using its corresponding config variables in your model.
+
+data_root = 'data/icdar2013'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Training_Task3_Images_GT.zip',
+                save_name='ic13_textrecog_train_img_gt.zip',
+                md5='6f0dbc823645968030878df7543f40a4',
+                content=['image'],
+                mapping=[
+                    # ['ic13_textrecog_train_img_gt/gt.txt',
+                    # 'annotations/train.txt'],
+                    ['ic13_textrecog_train_img_gt', 'textrecog_imgs/train']
+                ]),
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+                'icdar_2013/train_labels.json',
+                save_name='ic13_train_labels.json',
+                md5='008fcd0056e72c4cf3064fb4d1fce81b',
+                content=['annotation'],
+                mapping=[['ic13_train_labels.json', 'textrecog_train.json']]),
+        ]))
+
+# Note that we offer two versions of test set annotations as follows.Please
+# choose one of them to download and comment the other. By default, we use the
+# second one.
+# 1. The original official annotation, which contains 1095 test
+# samples.
+
+# Uncomment the test_preparer if you want to use the original 1095 version.
+
+# test_preparer = dict(
+#     obtainer=dict(
+#         type='NaiveDataObtainer',
+#         cache_path=cache_path,
+#         files=[
+#             dict(
+#                 url='https://rrc.cvc.uab.es/downloads/'
+#                 'Challenge2_Test_Task3_Images.zip',
+#                 save_name='ic13_textrecog_test_img.zip',
+#                 md5='3206778eebb3a5c5cc15c249010bf77f',
+#                 split=['test'],
+#                 content=['image'],
+#                 mapping=[['ic13_textrecog_test_img',
+#                           'textrecog_imgs/test']]),
+#             dict(
+#                 url='https://rrc.cvc.uab.es/downloads/'
+#                 'Challenge2_Test_Task3_GT.txt',
+#                 save_name='ic13_textrecog_test_gt.txt',
+#                 md5='2634060ed8fe6e7a4a9b8d68785835a1',
+#                 split=['test'],
+#                 content=['annotation'],
+#                 mapping=[[
+#                     'ic13_textrecog_test_gt.txt', 'annotations/test.txt'
+#                 ]]),  # noqa
+#             # The 857 version further pruned words shorter than 3 characters.
+#             dict(
+#                 url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+#                 'icdar_2013/textrecog_test_857.json',
+#                 save_name='textrecog_test_857.json',
+#                 md5='3bed3985b0c51a989ad4006f6de8352b',
+#                 split=['test'],
+#                 content=['annotation'],
+#             ),
+#         ]),
+#     gatherer=dict(type='MonoGatherer', ann_name='test.txt'),
+#     parser=dict(
+#         type='ICDARTxtTextRecogAnnParser', separator=', ',
+#         format='img, text'),  # noqa
+#     packer=dict(type='TextRecogPacker'),
+#     dumper=dict(type='JsonDumper'),
+# )
+
+# 2. The widely-used version for academic purpose, which filters
+# out words with non-alphanumeric characters. This version contains
+# 1015 test samples.
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Test_Task3_Images.zip',
+                save_name='ic13_textrecog_test_img.zip',
+                md5='3206778eebb3a5c5cc15c249010bf77f',
+                split=['test'],
+                content=['image'],
+                mapping=[['ic13_textrecog_test_img', 'textrecog_imgs/test']]),
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+                'icdar_2013/textrecog_test_1015.json',
+                save_name='textrecog_test.json',
+                md5='68fdd818f63df8b93dc952478952009a',
+                split=['test'],
+                content=['annotation'],
+            ),
+            # The 857 version further pruned words shorter than 3 characters.
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+                'icdar_2013/textrecog_test_857.json',
+                save_name='textrecog_test_857.json',
+                md5='3bed3985b0c51a989ad4006f6de8352b',
+                split=['test'],
+                content=['annotation'],
+            ),
+        ]))
+
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    test_anns=[
+        dict(ann_file='textrecog_test.json'),
+        dict(dataset_postfix='857', ann_file='textrecog_test_857.json')
+    ])
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2013/textspotting.py b/mmocr-dev-1.x/dataset_zoo/icdar2013/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..194ed82042da793d4f519e386877fc58b9fe63d6
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2013/textspotting.py
@@ -0,0 +1,38 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.test_preparer.obtainer.files = [
+    dict(
+        url='https://rrc.cvc.uab.es/downloads/'
+        'Challenge2_Test_Task12_Images.zip',
+        save_name='ic13_textdet_test_img.zip',
+        md5='af2e9f070c4c6a1c7bdb7b36bacf23e3',
+        content=['image'],
+        mapping=[['ic13_textdet_test_img', 'textdet_imgs/test']]),
+    dict(
+        url='https://download.openmmlab.com/mmocr/data/1.x/'
+        'textspotting/icdar2013/ic13_textspotting_test_gt.zip',
+        save_name='ic13_textspotting_test_gt.zip',
+        md5='d0d95e800504795d153f4f21d4d8ce07',
+        content=['annotation'],
+        mapping=[['ic13_textspotting_test_gt', 'annotations/test']]),
+    dict(
+        url='https://download.openmmlab.com/mmocr/data/1.x/'
+        'textspotting/icdar2013/lexicons.zip',
+        save_name='icdar2013_lexicons.zip',
+        md5='4ba017ab0637dae7a66fa471ac0a3253',
+        content=['annotation'],
+        mapping=[['icdar2013_lexicons/lexicons', 'lexicons']]),
+]
+_base_.test_preparer.parser = dict(
+    type='ICDARTxtTextDetAnnParser', encoding='utf-8-sig')
+
+delete = [
+    'annotations', 'ic13_textdet_train_img', 'ic13_textdet_train_gt',
+    'ic13_textdet_test_img', 'ic13_textdet_test_gt', 'icdar2013_lexicons'
+]
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2015/metafile.yml b/mmocr-dev-1.x/dataset_zoo/icdar2015/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..fa4c24dbc9cfe4eae0eb5e6e3be8e5dcbd42b14b
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2015/metafile.yml
@@ -0,0 +1,29 @@
+Name: 'Incidental Scene Text IC15'
+Paper:
+  Title: ICDAR 2015 Competition on Robust Reading
+  URL: https://rrc.cvc.uab.es/files/short_rrc_2015.pdf
+  Venue: ICDAR
+  Year: '2015'
+  BibTeX: '@inproceedings{karatzas2015icdar,
+  title={ICDAR 2015 competition on robust reading},
+  author={Karatzas, Dimosthenis and Gomez-Bigorda, Lluis and Nicolaou, Anguelos and Ghosh, Suman and Bagdanov, Andrew and Iwamura, Masakazu and Matas, Jiri and Neumann, Lukas and Chandrasekhar, Vijay Ramaseshan and Lu, Shijian and others},
+  booktitle={2015 13th international conference on document analysis and recognition (ICDAR)},
+  pages={1156--1160},
+  year={2015},
+  organization={IEEE}}'
+Data:
+  Website: https://rrc.cvc.uab.es/?ch=4
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: CC BY 4.0
+    Link: https://creativecommons.org/licenses/by/4.0/
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2015/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/icdar2015/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..73b37c3eb996ea4618a2b5d302426df7ea02e013
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2015/sample_anno.md
@@ -0,0 +1,19 @@
+**Text Detection**
+
+```text
+# x1,y1,x2,y2,x3,y3,x4,y4,trans
+
+377,117,463,117,465,130,378,130,Genaxis Theatre
+493,115,519,115,519,131,493,131,[06]
+374,155,409,155,409,170,374,170,###
+```
+
+**Text Recognition**
+
+```text
+# img_name, "text"
+
+word_1.png, "Genaxis Theatre"
+word_2.png, "[06]"
+word_3.png, "62-03"
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2015/textdet.py b/mmocr-dev-1.x/dataset_zoo/icdar2015/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..612f59f4103f179f5df161d96d3e109f9e5d6a5b
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2015/textdet.py
@@ -0,0 +1,60 @@
+data_root = 'data/icdar2015'
+cache_path = 'data/cache'
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_training_images.zip',
+                save_name='ic15_textdet_train_img.zip',
+                md5='c51cbace155dcc4d98c8dd19d378f30d',
+                content=['image'],
+                mapping=[['ic15_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'ch4_training_localization_transcription_gt.zip',
+                save_name='ic15_textdet_train_gt.zip',
+                md5='3bfaf1988960909014f7987d2343060b',
+                content=['annotation'],
+                mapping=[['ic15_textdet_train_gt', 'annotations/train']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+    parser=dict(type='ICDARTxtTextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_test_images.zip',
+                save_name='ic15_textdet_test_img.zip',
+                md5='97e4c1ddcf074ffcc75feff2b63c35dd',
+                content=['image'],
+                mapping=[['ic15_textdet_test_img', 'textdet_imgs/test']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge4_Test_Task4_GT.zip',
+                save_name='ic15_textdet_test_gt.zip',
+                md5='8bce173b06d164b98c357b0eb96ef430',
+                content=['annotation'],
+                mapping=[['ic15_textdet_test_gt', 'annotations/test']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+    parser=dict(type='ICDARTxtTextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+config_generator = dict(type='TextDetConfigGenerator')
+delete = ['annotations', 'ic15_textdet_test_img', 'ic15_textdet_train_img']
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2015/textrecog.py b/mmocr-dev-1.x/dataset_zoo/icdar2015/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..181f7d61452cbb2172cf82ca72c8ee77571fe80e
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2015/textrecog.py
@@ -0,0 +1,72 @@
+# This configuration prepares the ICDAR15 1811 and 2077
+# version, and uses ICDAR15 2077 version by default.
+# Read https://arxiv.org/pdf/1904.01906.pdf for more info.
+data_root = 'data/icdar2015'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'ch4_training_word_images_gt.zip',
+                save_name='ic15_textrecog_train_img_gt.zip',
+                md5='600caf8c6a64a3dcf638839820edcca9',
+                content=['image', 'annotation'],
+                mapping=[[
+                    'ic15_textrecog_train_img_gt/gt.txt',
+                    'annotations/train.txt'
+                ], ['ic15_textrecog_train_img_gt', 'textrecog_imgs/train']]),
+        ]),
+    gatherer=dict(type='MonoGatherer', ann_name='train.txt'),
+    parser=dict(type='ICDARTxtTextRecogAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextRecogPacker'),
+    dumper=dict(type='JsonDumper'))
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'ch4_test_word_images_gt.zip',
+                save_name='ic15_textrecog_test_img.zip',
+                md5='d7a71585f4cc69f89edbe534e7706d5d',
+                content=['image'],
+                mapping=[['ic15_textrecog_test_img', 'textrecog_imgs/test']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge4_Test_Task3_GT.txt',
+                save_name='ic15_textrecog_test_gt.txt',
+                md5='d7a71585f4cc69f89edbe534e7706d5d',
+                content=['annotation'],
+                mapping=[[
+                    'ic15_textrecog_test_gt.txt', 'annotations/test.txt'
+                ]]),
+            # 3. The 1811 version discards non-alphanumeric character images
+            # and some extremely rotated, perspective-shifted, and curved
+            # images for evaluation
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+                'icdar_2015/textrecog_test_1811.json',
+                save_name='textrecog_test_1811.json',
+                md5='8d218ef1c37540ea959e22eeabc79ae4',
+                content=['annotation'],
+            ),
+        ]),
+    gatherer=dict(type='MonoGatherer', ann_name='test.txt'),
+    parser=dict(type='ICDARTxtTextRecogAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextRecogPacker'),
+    dumper=dict(type='JsonDumper'))
+delete = [
+    'annotations', 'ic15_textrecog_train_img_gt', 'ic15_textrecog_test_img'
+]
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    test_anns=[
+        dict(ann_file='textrecog_test.json'),
+        dict(dataset_postfix='1811', ann_file='textrecog_test_1811.json')
+    ])
diff --git a/mmocr-dev-1.x/dataset_zoo/icdar2015/textspotting.py b/mmocr-dev-1.x/dataset_zoo/icdar2015/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..fa2ef0d919d36b4b8f622253e75c10f4e83cface
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/icdar2015/textspotting.py
@@ -0,0 +1,35 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.obtainer.files = [
+    dict(
+        url='https://rrc.cvc.uab.es/downloads/ch4_test_images.zip',
+        save_name='ic15_textdet_test_img.zip',
+        md5='97e4c1ddcf074ffcc75feff2b63c35dd',
+        content=['image'],
+        mapping=[['ic15_textdet_test_img', 'textdet_imgs/test']]),
+    dict(
+        url='https://rrc.cvc.uab.es/downloads/'
+        'Challenge4_Test_Task4_GT.zip',
+        save_name='ic15_textdet_test_gt.zip',
+        md5='8bce173b06d164b98c357b0eb96ef430',
+        content=['annotation'],
+        mapping=[['ic15_textdet_test_gt', 'annotations/test']]),
+    dict(
+        url='https://download.openmmlab.com/mmocr/data/1.x/'
+        'textspotting/icdar2015/lexicons.zip',
+        save_name='icdar2015_lexicons.zip',
+        md5='daec48ee72de25a4293a6b12cdc181f5',
+        content=['annotation'],
+        mapping=[['icdar2015_lexicons/lexicons', 'lexicons']]),
+]
+
+config_generator = dict(type='TextSpottingConfigGenerator')
+delete = [
+    'annotations', 'ic15_textdet_test_img', 'ic15_textdet_train_img',
+    'icdar2015_lexicons'
+]
diff --git a/mmocr-dev-1.x/dataset_zoo/iiit5k/metafile.yml b/mmocr-dev-1.x/dataset_zoo/iiit5k/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..af8e81d919ae820ff2b3484b531ac45e1af3bd6a
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/iiit5k/metafile.yml
@@ -0,0 +1,25 @@
+Name: 'IIIT5K'
+Paper:
+  Title: Scene Text Recognition using Higher Order Language Priors
+  URL: http://cvit.iiit.ac.in/projects/SceneTextUnderstanding/Home/mishraBMVC12.pdf
+  Venue: BMVC
+  Year: '2012'
+  BibTeX: '@InProceedings{MishraBMVC12,
+  author    = "Mishra, A. and Alahari, K. and Jawahar, C.~V.",
+  title     = "Scene Text Recognition using Higher Order Language Priors",
+  booktitle = "BMVC",
+  year      = "2012"}'
+Data:
+  Website: http://cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K.html
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textrecog
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/iiit5k/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/iiit5k/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..a3aad947e211c87c5d7ee0d9d5f15ecf4f507668
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/iiit5k/sample_anno.md
@@ -0,0 +1,9 @@
+**Text Recognition**
+
+```text
+# img_name, "text"
+
+train/1009_2.png You
+train/1017_1.png Rescue
+train/1017_2.png mission
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/iiit5k/textrecog.py b/mmocr-dev-1.x/dataset_zoo/iiit5k/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..08bae8a0d31b768210f095dd8f9611cfb5bb31a4
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/iiit5k/textrecog.py
@@ -0,0 +1,64 @@
+data_root = 'data/iiit5k'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='http://cvit.iiit.ac.in/projects/SceneTextUnderstanding/'
+                'IIIT5K-Word_V3.0.tar.gz',
+                save_name='IIIT5K.tar.gz',
+                md5='56781bc327d22066aa1c239ee788fd46',
+                content=['image'],
+                mapping=[['IIIT5K/IIIT5K/train', 'textrecog_imgs/train']]),
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/mixture/IIIT5K/'
+                'train_label.txt',
+                save_name='iiit5k_train.txt',
+                md5='beee914aaf3ec5794622b843d743c5a6',
+                content=['annotation'],
+                mapping=[['iiit5k_train.txt', 'annotations/train.txt']])
+        ]),
+    gatherer=dict(type='MonoGatherer', ann_name='train.txt'),
+    parser=dict(
+        type='ICDARTxtTextRecogAnnParser',
+        encoding='utf-8',
+        separator=' ',
+        format='img text'),
+    packer=dict(type='TextRecogPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='http://cvit.iiit.ac.in/projects/SceneTextUnderstanding/'
+                'IIIT5K-Word_V3.0.tar.gz',
+                save_name='IIIT5K.tar.gz',
+                md5='56781bc327d22066aa1c239ee788fd46',
+                content=['image'],
+                mapping=[['IIIT5K/IIIT5K/test', 'textrecog_imgs/test']]),
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/mixture/IIIT5K/'
+                'test_label.txt',
+                save_name='iiit5k_test.txt',
+                md5='117bcd9b4245f61fa57bfb37361674b3',
+                content=['annotation'],
+                mapping=[['iiit5k_test.txt', 'annotations/test.txt']])
+        ]),
+    gatherer=dict(type='MonoGatherer', ann_name='test.txt'),
+    parser=dict(
+        type='ICDARTxtTextRecogAnnParser',
+        encoding='utf-8',
+        separator=' ',
+        format='img text'),
+    packer=dict(type='TextRecogPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+delete = ['annotations', 'IIIT5K']
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/mjsynth/metafile.yml b/mmocr-dev-1.x/dataset_zoo/mjsynth/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..42491ae42fd4a9bc4b5e59b4abf78d949d22735a
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/mjsynth/metafile.yml
@@ -0,0 +1,37 @@
+Name: 'Synthetic Word Dataset (MJSynth/Syn90k)'
+Paper:
+  Title: Reading Text in the Wild with Convolutional Neural Networks
+  URL: https://arxiv.org/pdf/1412.1842.pdf
+  Venue: International Journal of Computer Vision
+  Year: '2016'
+  BibTeX: '@InProceedings{Jaderberg14c,
+  author       = "Max Jaderberg and Karen Simonyan and Andrea Vedaldi and Andrew Zisserman",
+  title        = "Synthetic Data and Artificial Neural Networks for Natural Scene Text Recognition",
+  booktitle    = "Workshop on Deep Learning, NIPS",
+  year         = "2014",
+  }
+
+  @Article{Jaderberg16,
+  author       = "Max Jaderberg and Karen Simonyan and Andrea Vedaldi and Andrew Zisserman",
+  title        = "Reading Text in the Wild with Convolutional Neural Networks",
+  journal      = "International Journal of Computer Vision",
+  number       = "1",
+  volume       = "116",
+  pages        = "1--20",
+  month        = "jan",
+  year         = "2016",
+  }'
+Data:
+  Website: https://www.robots.ox.ac.uk/~vgg/data/text/
+  Language:
+    - English
+  Scene:
+    - Synthesis
+  Granularity:
+    - Word
+  Tasks:
+    - textrecog
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/mjsynth/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/mjsynth/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..fe44e878917e77ae9beab2a3c9d6a793ba3e55d2
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/mjsynth/sample_anno.md
@@ -0,0 +1,6 @@
+**Text Recognition**
+
+```txt
+./3000/7/182_slinking_71711.jpg 71711
+./3000/7/182_REMODELERS_64541.jpg 64541
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/mjsynth/textrecog.py b/mmocr-dev-1.x/dataset_zoo/mjsynth/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..19751ec92103dd5123bec049cbfd617ab688c3dc
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/mjsynth/textrecog.py
@@ -0,0 +1,53 @@
+data_root = 'data/mjsynth'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://thor.robots.ox.ac.uk/~vgg/data/text/'
+                'mjsynth.tar.gz',
+                save_name='mjsynth.tar.gz',
+                md5='7bf2b60ad935eaf64e5b606f782d68e5',
+                split=['train'],
+                content=['image', 'annotation'],
+                mapping=[
+                    [
+                        'mjsynth/mnt/ramdisk/max/90kDICT32px/*/',
+                        'textrecog_imgs/train/'
+                    ],
+                    [
+                        'mjsynth/mnt/ramdisk/max/90kDICT32px/annotation.txt',
+                        'annotations/annotation.txt'
+                    ]
+                ]),
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+                'Syn90k/subset_textrecog_train.json',
+                save_name='subset_textrecog_train.json',
+                md5='ba958d87bb170980f39e194180c15b9e',
+                split=['train'],
+                content=['annotation'])
+        ]),
+    gatherer=dict(type='MonoGatherer', ann_name='annotation.txt'),
+    parser=dict(
+        type='MJSynthAnnParser',
+        separator=' ',
+        format='img num',
+        remove_strs=None),
+    packer=dict(type='TextRecogPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+delete = ['mjsynth', 'annotations']
+
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    data_root=data_root,
+    train_anns=[
+        dict(ann_file='textrecog_train.json', dataset_postfix=''),
+        dict(ann_file='subset_textrecog_train.json', dataset_postfix='sub'),
+    ],
+    test_anns=None)
diff --git a/mmocr-dev-1.x/dataset_zoo/naf/metafile.yml b/mmocr-dev-1.x/dataset_zoo/naf/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..c816c7723941f9b8c1c6fedf75a6ac337602a25d
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/naf/metafile.yml
@@ -0,0 +1,31 @@
+Name: 'NAF'
+Paper:
+  Title: Deep Visual Template-Free Form Parsing
+  URL: https://ieeexplore.ieee.org/abstract/document/8977962
+  Venue: ICDAR
+  Year: '2019'
+  BibTeX: '@inproceedings{davis2019deep,
+            title={Deep visual template-free form parsing},
+            author={Davis, Brian and Morse, Bryan and Cohen, Scott and Price, Brian and Tensmeyer, Chris},
+            booktitle={2019 International Conference on Document Analysis and Recognition (ICDAR)},
+            pages={134--141},
+            year={2019},
+            organization={IEEE}}'
+Data:
+  Website: https://github.com/herobd/NAF_dataset
+  Language:
+    - English
+  Scene:
+    - Document
+    - Handwritten
+  Granularity:
+    - Word
+    - Line
+  Tasks:
+    - textrecog
+    - textdet
+    - textspotting
+  License:
+    Type: CDLA
+    Link: https://github.com/herobd/NAF_dataset/blob/master/LICENSE
+  Format: .json
diff --git a/mmocr-dev-1.x/dataset_zoo/naf/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/naf/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..9043e76347038b7fe338740095b6704749ce5855
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/naf/sample_anno.md
@@ -0,0 +1,6 @@
+**Text Detection/Recognition/Spotting**
+
+```json
+{"fieldBBs": [{"poly_points": [[435, 1406], [466, 1406], [466, 1439], [435, 1439]], "type": "fieldCheckBox", "id": "f0", "isBlank": 1}, {"poly_points": [[435, 1444], [469, 1444], [469, 1478], [435, 1478]], "type": "fieldCheckBox", "id": "f1", "isBlank": 1}],
+ "textBBs": [{"poly_points": [[1183, 1337], [2028, 1345], [2032, 1395], [1186, 1398]], "type": "text", "id": "t0"}, {"poly_points": [[492, 1336], [809, 1338], [809, 1379], [492, 1378]], "type": "text", "id": "t1"}, {"poly_points": [[512, 1375], [798, 1376], [798, 1405], [512, 1404]], "type": "textInst", "id": "t2"}], "imageFilename": "007182398_00026.jpg", "transcriptions": {"f0": "\u00bf\u00bf\u00bf \u00bf\u00bf\u00bf 18/1/49 \u00bf\u00bf\u00bf\u00bf\u00bf", "f1": "U.S. Navy 53rd. Naval Const. Batt.", "t0": "APPLICATION FOR HEADSTONE OR MARKER", "t1": "ORIGINAL"}}
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/naf/textdet.py b/mmocr-dev-1.x/dataset_zoo/naf/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..73470c1e8f112d4a10cc580f8472838c9f0115bf
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/naf/textdet.py
@@ -0,0 +1,50 @@
+data_root = 'data/naf'
+cache_path = 'data/cache'
+
+obtainer = dict(
+    type='NaiveDataObtainer',
+    cache_path=cache_path,
+    files=[
+        dict(
+            url='https://github.com/herobd/NAF_dataset/releases/'
+            'download/v1.0/labeled_images.tar.gz',
+            save_name='naf_image.tar.gz',
+            md5='6521cdc25c313a1f2928a16a77ad8f29',
+            content=['image'],
+            mapping=[['naf_image/labeled_images', 'temp_images/']]),
+        dict(
+            url='https://github.com/herobd/NAF_dataset/archive/'
+            'refs/heads/master.zip',
+            save_name='naf_anno.zip',
+            md5='abf5af6266cc527d772231751bc884b3',
+            content=['annotation'],
+            mapping=[
+                [
+                    'naf_anno/NAF_dataset-master/groups/**/*.json',
+                    'annotations/'
+                ],
+                [
+                    'naf_anno/NAF_dataset-master/train_valid_test_split.json',
+                    'data_split.json'
+                ]
+            ]),
+    ])
+
+train_preparer = dict(
+    obtainer=obtainer,
+    gatherer=dict(type='NAFGatherer'),
+    parser=dict(type='NAFAnnParser', det=True),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = train_preparer
+
+val_preparer = train_preparer
+
+delete = [
+    'temp_images', 'data_split.json', 'annotations', 'naf_anno', 'naf_image'
+]
+config_generator = dict(
+    type='TextDetConfigGenerator',
+    val_anns=[dict(ann_file='textdet_val.json', dataset_postfix='')])
diff --git a/mmocr-dev-1.x/dataset_zoo/naf/textrecog.py b/mmocr-dev-1.x/dataset_zoo/naf/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..915bdbc277c55cbba0e4398ed158613ea20d6692
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/naf/textrecog.py
@@ -0,0 +1,18 @@
+# The transcription of NAF dataset is annotated from Tessaract OCR, which is
+# not accurate. The test/valid set ones were hand corrected, but the train set
+# was only hand corrected a little. They aren't very good results. Better
+# not to use them for recognition and text spotting.
+
+_base_ = ['textdet.py']
+_base_.train_preparer.parser.update(dict(ignore=['¿', '§'], det=False))
+_base_.test_preparer.parser.update(dict(ignore=['¿', '§'], det=False))
+_base_.val_preparer.parser.update(dict(ignore=['¿', '§'], det=False))
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.test_preparer.packer.type = 'TextRecogCropPacker'
+_base_.val_preparer.packer.type = 'TextRecogCropPacker'
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.val_preparer.gatherer.img_dir = 'textdet_imgs/val'
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    val_anns=[dict(ann_file='textrecog_val.json', dataset_postfix='')])
diff --git a/mmocr-dev-1.x/dataset_zoo/naf/textspotting.py b/mmocr-dev-1.x/dataset_zoo/naf/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..65d3ec1adf677c58dbe5863f84613427178f730e
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/naf/textspotting.py
@@ -0,0 +1,19 @@
+# The transcription of NAF dataset is annotated from Tessaract OCR, which is
+# not accurate. The test/valid set ones were hand corrected, but the train set
+# was only hand corrected a little. They aren't very good results. Better
+# not to use them for recognition and text spotting.
+
+_base_ = ['textdet.py']
+_base_.train_preparer.parser.update(dict(ignore=['¿', '§'], det=False))
+_base_.test_preparer.parser.update(dict(ignore=['¿', '§'], det=False))
+_base_.val_preparer.parser.update(dict(ignore=['¿', '§'], det=False))
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+_base_.val_preparer.packer.type = 'TextSpottingPacker'
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.val_preparer.gatherer.img_dir = 'textdet_imgs/val'
+
+config_generator = dict(
+    type='TextSpottingConfigGenerator',
+    val_anns=[dict(ann_file='textspotting_val.json', dataset_postfix='')])
diff --git a/mmocr-dev-1.x/dataset_zoo/sroie/metafile.yml b/mmocr-dev-1.x/dataset_zoo/sroie/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..804530eb342d83d9c30a6a08fc5b990a03a5854a
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/sroie/metafile.yml
@@ -0,0 +1,31 @@
+Name: 'Scanned Receipts OCR and Information Extraction'
+Paper:
+  Title: ICDAR2019 Competition on Scanned Receipt OCR and Information Extraction
+  URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8977955
+  Venue: ICDAR
+  Year: '2019'
+  BibTeX: '@INPROCEEDINGS{8977955,
+  author={Huang, Zheng and Chen, Kai and He, Jianhua and Bai, Xiang and Karatzas, Dimosthenis and Lu, Shijian and Jawahar, C. V.},
+  booktitle={2019 International Conference on Document Analysis and Recognition (ICDAR)},
+  title={ICDAR2019 Competition on Scanned Receipt OCR and Information Extraction},
+  year={2019},
+  volume={},
+  number={},
+  pages={1516-1520},
+  doi={10.1109/ICDAR.2019.00244}}'
+Data:
+  Website: https://rrc.cvc.uab.es/?ch=13
+  Language:
+    - English
+  Scene:
+    - Document
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: CC BY 4.0
+    Link: https://creativecommons.org/licenses/by/4.0/
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/sroie/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/sroie/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..86efab568b8f30f2234190c314907cfa50ca7702
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/sroie/sample_anno.md
@@ -0,0 +1,9 @@
+**Text Detection, Text Recognition and Text Spotting**
+
+```text
+# x1,y1,x2,y2,x3,y3,x4,y4,trans
+
+72,25,326,25,326,64,72,64,TAN WOON YANN
+50,82,440,82,440,121,50,121,BOOK TA .K(TAMAN DAYA) SDN BND
+205,121,285,121,285,139,205,139,789417-W
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/sroie/textdet.py b/mmocr-dev-1.x/dataset_zoo/sroie/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..8b994ea80a5bdd3b18231e378cf57d1fbbdc01fc
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/sroie/textdet.py
@@ -0,0 +1,64 @@
+data_root = 'data/sroie'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/'
+                'sroie/0325updated.task1train(626p).zip',
+                save_name='0325updated.task1train(626p).zip',
+                md5='16137490f6865caac75772b9111d348c',
+                content=['image', 'annotation'],
+                mapping=[[
+                    '0325updated/0325updated.task1train(626p)/*.jpg',
+                    'textdet_imgs/train'
+                ],
+                         [
+                             '0325updated/0325updated.task1train(626p)/*.txt',
+                             'annotations/train'
+                         ]])
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg'],
+        rule=[r'X(\d+)\.([jJ][pP][gG])', r'X\1.txt']),
+    parser=dict(type='SROIETextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/'
+                'sroie/task1&2_test(361p).zip',
+                save_name='task1&2_test(361p).zip',
+                md5='1bde54705db0995c57a6e34cce437fea',
+                content=['image'],
+                mapping=[[
+                    'task1&2_test(361p)/fulltext_test(361p)',
+                    'textdet_imgs/test'
+                ]]),
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/sroie/text.zip',
+                save_name='text.zip',
+                md5='8c534653f252ff4d3943fa27a956a74b',
+                content=['annotation'],
+                mapping=[['text', 'annotations/test']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg'],
+        rule=[r'X(\d+)\.([jJ][pP][gG])', r'X\1.txt']),
+    parser=dict(type='SROIETextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+delete = ['text', 'task1&2_test(361p)', '0325updated', 'annotations']
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/sroie/textrecog.py b/mmocr-dev-1.x/dataset_zoo/sroie/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..07d03dfba2df6010298dea11e5066eb890556680
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/sroie/textrecog.py
@@ -0,0 +1,8 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.test_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/sroie/textspotting.py b/mmocr-dev-1.x/dataset_zoo/sroie/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..9e7fde0e2eeb904b3115bb61b4ffb3e66df92943
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/sroie/textspotting.py
@@ -0,0 +1,8 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/svt/metafile.yml b/mmocr-dev-1.x/dataset_zoo/svt/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..3636fd9bcda41a2d5455b5d56e4e772632cee5c7
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svt/metafile.yml
@@ -0,0 +1,29 @@
+Name: 'Street View Text Dataset (SVT)'
+Paper:
+  Title: Word Spotting in the Wild
+  URL: https://link.springer.com/content/pdf/10.1007/978-3-642-15549-9_43.pdf
+  Venue: ECCV
+  Year: '2010'
+  BibTeX: '@inproceedings{wang2010word,
+  title={Word spotting in the wild},
+  author={Wang, Kai and Belongie, Serge},
+  booktitle={European conference on computer vision},
+  pages={591--604},
+  year={2010},
+  organization={Springer}}'
+Data:
+  Website: http://www.iapr-tc11.org/mediawiki/index.php/The_Street_View_Text_Dataset
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .xml
diff --git a/mmocr-dev-1.x/dataset_zoo/svt/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/svt/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..cc0e40d245f85a81649d69e8e0176777896c91cf
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svt/sample_anno.md
@@ -0,0 +1,23 @@
+**Text Detection/Recognition/Spotting**
+
+```xml
+<image>
+  <imageName>img/14_03.jpg</imageName>
+  <address>341 Southwest 10th Avenue Portland OR</address>
+  <lex>
+  LIVING,ROOM,THEATERS,KENNY,ZUKE,DELICATESSEN,CLYDE,COMMON,ACE,HOTEL,PORTLAND,ROSE,CITY,BOOKS,STUMPTOWN,COFFEE,ROASTERS,RED,CAP,GARAGE,FISH,GROTTO,SEAFOOD,RESTAURANT,AURA,RESTAURANT,LOUNGE,ROCCO,PIZZA,PASTA,BUFFALO,EXCHANGE,MARK,SPENCER,LIGHT,FEZ,BALLROOM,READING,FRENZY,ROXY,SCANDALS,MARTINOTTI,CAFE,DELI,CROWSENBERG,HALF
+  </lex>
+  <Resolution x="1280" y="880"/>
+  <taggedRectangles>
+    <taggedRectangle height="75" width="236" x="375" y="253">
+      <tag>LIVING</tag>
+    </taggedRectangle>
+    <taggedRectangle height="76" width="175" x="639" y="272">
+      <tag>ROOM</tag>
+    </taggedRectangle>
+    <taggedRectangle height="87" width="281" x="839" y="283">
+      <tag>THEATERS</tag>
+    </taggedRectangle>
+  </taggedRectangles>
+</image>
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/svt/textdet.py b/mmocr-dev-1.x/dataset_zoo/svt/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..703851a9302213fec8bf70a1aba007a4260da760
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svt/textdet.py
@@ -0,0 +1,44 @@
+data_root = 'data/svt'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='http://www.iapr-tc11.org/dataset/SVT/svt.zip',
+                save_name='svt.zip',
+                md5='42d19160010d990ae6223b14f45eff88',
+                content=['image', 'annotations'],
+                mapping=[['svt/svt1/train.xml', 'annotations/train.xml'],
+                         ['svt/svt1/img', 'textdet_imgs/img']]),
+        ]),
+    gatherer=dict(
+        type='MonoGatherer', ann_name='train.xml', img_dir='textdet_imgs/img'),
+    parser=dict(type='SVTTextDetAnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='http://www.iapr-tc11.org/dataset/SVT/svt.zip',
+                save_name='svt.zip',
+                md5='42d19160010d990ae6223b14f45eff88',
+                content=['image', 'annotations'],
+                mapping=[['svt/svt1/test.xml', 'annotations/test.xml'],
+                         ['svt/svt1/img', 'textdet_imgs/img']]),
+        ]),
+    gatherer=dict(
+        type='MonoGatherer', ann_name='test.xml', img_dir='textdet_imgs/img'),
+    parser=dict(type='SVTTextDetAnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+delete = ['annotations', 'svt']
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/svt/textrecog.py b/mmocr-dev-1.x/dataset_zoo/svt/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..eff1abe307027b8eed2dfe4af1564e6536a0e223
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svt/textrecog.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.test_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/svt/textspotting.py b/mmocr-dev-1.x/dataset_zoo/svt/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..9a9124fc1ba01ffa6a69ccf383c08d4e4528cc68
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svt/textspotting.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/svtp/metafile.yml b/mmocr-dev-1.x/dataset_zoo/svtp/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..a544d35d83b953a294d017bd4677769e1511466f
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svtp/metafile.yml
@@ -0,0 +1,26 @@
+Name: 'Street View Text Perspective (SVT-P)'
+Paper:
+  Title: Recognizing Text with Perspective Distortion in Natural Scenes
+  URL: https://openaccess.thecvf.com/content_iccv_2013/papers/Phan_Recognizing_Text_with_2013_ICCV_paper.pdf
+  Venue: ICCV
+  Year: '2013'
+  BibTeX: '@inproceedings{phan2013recognizing,
+  title={Recognizing text with perspective distortion in natural scenes},
+  author={Phan, Trung Quy and Shivakumara, Palaiahnakote and Tian, Shangxuan and Tan, Chew Lim},
+  booktitle={Proceedings of the IEEE International Conference on Computer Vision},
+  pages={569--576},
+  year={2013}}'
+Data:
+  Website: http://www.comp.nus.edu.sg/~phanquyt/
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textrecog
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/svtp/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/svtp/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..11711e25bc478c5bc4c815094e453b9a621fecd8
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svtp/sample_anno.md
@@ -0,0 +1,7 @@
+**Text Recognition**
+
+```txt
+13_15_0_par.jpg WYNDHAM
+13_15_1_par.jpg HOTEL
+12_16_0_par.jpg UNITED
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/svtp/textrecog.py b/mmocr-dev-1.x/dataset_zoo/svtp/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..bffe23f458562b8169b5125ec01b7e3e50522789
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/svtp/textrecog.py
@@ -0,0 +1,23 @@
+data_root = 'data/svtp'
+cache_path = 'data/cache'
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/svtp.zip',
+                save_name='svtp.zip',
+                md5='4232b46c81ba99eea6d057dcb06b8f75',
+                content=['image', 'annotation'],
+                mapping=[['svtp/par1', 'textrecog_imgs/test'],
+                         ['svtp/gt.txt', 'annotations/test.txt']]),
+        ]),
+    gatherer=dict(type='MonoGatherer', ann_name='test.txt'),
+    parser=dict(
+        type='ICDARTxtTextRecogAnnParser', separator=' ', format='img text'),
+    packer=dict(type='TextRecogPacker'),
+    dumper=dict(type='JsonDumper'))
+delete = ['svtp', 'annotations']
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/synthtext/metafile.yml b/mmocr-dev-1.x/dataset_zoo/synthtext/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..a0154d730eaf77713c566d575ed2488928c0dae0
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/synthtext/metafile.yml
@@ -0,0 +1,29 @@
+Name: 'SynthText in the Wild Dataset'
+Paper:
+  Title: Synthetic Data for Text Localisation in Natural Images
+  URL: https://openaccess.thecvf.com/content_cvpr_2016/papers/Gupta_Synthetic_Data_for_CVPR_2016_paper.pdf
+  Venue: CVPR
+  Year: '2016'
+  BibTeX: '@InProceedings{Gupta16,
+  author       = "Ankush Gupta and Andrea Vedaldi and Andrew Zisserman",
+  title        = "Synthetic Data for Text Localisation in Natural Images",
+  booktitle    = "IEEE Conference on Computer Vision and Pattern Recognition",
+  year         = "2016",
+  }'
+Data:
+  Website: https://www.robots.ox.ac.uk/~vgg/data/scenetext/
+  Language:
+    - English
+  Scene:
+    - Synthesis
+  Granularity:
+    - Word
+    - Character
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: Synthext Custom
+    Link: https://www.robots.ox.ac.uk/~vgg/terms/dataset-group-2-access.html
+  Format: .mat
diff --git a/mmocr-dev-1.x/dataset_zoo/synthtext/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/synthtext/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..90468d30ebb58533c12049dc1e7f5d677ab6639c
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/synthtext/sample_anno.md
@@ -0,0 +1,124 @@
+**Text Detection/Recognition/Spotting**
+
+```json
+{
+    "imnames": [['8/ballet_106_0.jpg', ...]],
+    "wordBB": [[[420.58957   418.85016   448.08478   410.3094    117.745026
+                322.30963   322.6857    159.09138   154.27284   260.14597
+                431.9315    427.52274   296.86508    99.56819   108.96211  ]
+               [512.3321    431.88342   519.4515    499.81183   179.0544
+                377.97382   376.4993    203.64464   193.77492   313.61514
+                487.58023   484.64633   365.83176   142.49403   144.90457  ]
+               [511.92203   428.7077    518.7375    499.0373    172.1684
+                378.35858   377.2078    203.3191    193.0739    319.69186
+                485.6758    482.571     365.76303   142.31898   144.43858  ]
+               [420.1795    415.67444   447.3708    409.53485   110.859024
+                322.6944    323.3942    158.76585   153.57182   266.2227
+                430.02707   425.44742   296.79636    99.39314   108.49613  ]]
+
+              [[ 21.06382    46.19922    47.570374   73.95366   197.17792
+                  9.993624   48.437763    9.064571   49.659035  208.57095
+                118.41646   162.82489    29.548729    5.800581   28.812992 ]
+               [ 23.069519   48.254295   50.130234   77.18146   208.71487
+                  8.999153   46.69632     9.698633   50.869553  203.25742
+                122.64043   168.38647    29.660484    6.2558594  29.602367 ]
+               [ 41.827087   68.39458    70.03627    98.65903   245.30832
+                 30.534437   68.589294   32.57161    73.74529   264.40634
+                147.7303    189.70224    72.08       22.759935   50.81941  ]
+               [ 39.82139    66.3395     67.47641    95.43123   233.77136
+                 31.528908   70.33074    31.937548   72.534775  269.71988
+                143.50633   184.14066    71.96825    22.304657   50.030033 ]], ...],
+    "charBB": [[[423.16126397 439.60847343 450.66887979 466.31976402 479.76190495
+                504.59927448 418.80489444 450.13965942 464.16775197 480.46891089
+                502.46437709 413.02373632 433.01396211 446.7222192  470.28467827
+                482.51674486 116.52285438 139.51408587 150.7448586  162.03366629
+                322.84717946 333.54881536 343.28386485 363.07416389 323.48968759
+                337.98503283 356.66355903 160.48517048 174.1707753  189.64454066
+                155.7637383  167.45490471 179.63644201 262.2183876  271.75848874
+                284.05396524 298.26103738 432.8464733  449.15387392 468.07231897
+                428.11482147 445.61538159 469.24565878 296.86441324 323.6603118
+                344.09880401 101.14677814 110.45423597 120.54555495 131.18342618
+                132.20545124 110.01673682 120.83144568 131.35885673]
+               [438.2997574  452.61288403 466.31976402 482.22585715 498.3934528
+                512.20555863 431.88338084 466.11639619 481.73414937 499.62012025
+                519.36789779 432.51717267 449.23571387 465.73425964 484.45139112
+                499.59056304 140.27413679 149.59811175 160.13352083 169.59504507
+                333.55849014 344.33923741 361.08275796 378.09844418 339.92898685
+                355.57692063 376.51230484 174.1707753  189.07871028 203.64462646
+                165.22739457 181.27572412 193.60260894 270.99557614 283.13281739
+                298.75499435 313.61511672 447.1421735  470.27065563 487.02126631
+                446.97485257 468.98979567 484.64633864 317.88691577 341.16094163
+                365.8300006  111.15280603 120.54555495 130.72086821 135.27663717
+                142.4726875  120.1331955  133.07976304 144.75919258]
+               [435.54895424 449.95797159 464.5848793  480.68235876 497.04793842
+                511.1101386  428.95660757 463.61882066 480.14247127 498.2535215
+                518.03243928 429.36600266 447.19056345 463.89483785 482.21016814
+                498.18529977 142.63162835 152.55587851 162.80539142 172.21885945
+                333.35620309 344.09880401 360.86201193 377.82379299 339.7646859
+                355.37508239 376.1110999  172.46032372 187.37816388 201.39094518
+                163.04321987 178.99078221 191.89681939 275.3073355  286.08373072
+                301.85539131 318.57227103 444.54207279 467.53925436 485.27070558
+                444.57367155 466.90671029 482.56302723 317.62908407 340.9131681
+                365.44465854 109.40501176 119.4999228  129.67892444 134.35253232
+                140.97421069 118.61779828 131.34019115 143.25688164]
+               [420.17946701 436.74150236 448.74896556 464.5848793  478.18853922
+                503.4152019  415.67442461 447.3707845  462.35927516 478.8614766
+                500.86810735 409.54560397 430.77026495 444.64606264 467.79077782
+                480.89051912 119.14629674 142.63162835 153.56593297 164.78799774
+                322.69436747 333.35620309 343.11884239 362.84714115 323.37931952
+                337.83763574 356.35573621 158.76583616 172.46032372 187.37816388
+                153.57183805 165.15781218 177.92125239 266.22269514 274.45156305
+                286.82608962 302.69695881 430.02705241 446.01814255 466.05208347
+                425.44741792 443.19481667 466.90671029 296.79634428 323.49707084
+                343.82488703  99.39315359 109.40501176 119.4999228  130.25798537
+                130.70149005 108.49612777 119.08444238 129.84935461]]
+
+              [[ 22.26958901  21.60559248  27.0241972   27.25747678  27.45783459
+                 28.73896576  47.91255579  47.80732383  53.77711568  54.24219042
+                 52.00169325  74.79043429  80.45929285  81.04748707  76.11658669
+                 82.58335942 203.67278213 201.2743445  205.59358622 205.51198143
+                 10.06536976  10.82312635  16.77203865  16.31842372  54.80444433
+                 54.66492     47.33822371  15.08534083  15.18716407   9.62607092
+                 51.06813224  50.18928243  56.16019366 220.78902143 236.08062638
+                231.69267533 209.73652786 124.25352842 119.99631725 128.73732717
+                165.78411123 167.31764153 167.05531699  29.97351822  31.5116502
+                 31.14650552   5.88513488  12.51324147  12.57920537   8.21515307
+                  8.21998849  35.66412031  29.17945741  36.00660903]
+               [ 22.46075572  21.76391911  27.25747678  27.49456029  27.73554156
+                 28.85582217  48.25428361  48.21714995  54.27828788  54.78857757
+                 52.4595556   75.57743634  81.15533616  81.86325615  76.681392
+                 83.31596322 210.04771309 203.83983042 208.00417391 207.41791524
+                  9.79265706  10.55231862  16.36406888  15.97405105  54.64620856
+                 54.49559004  47.09756263  15.18716407  15.29808166   9.69862498
+                 51.27597632  50.48652154  56.49239954 216.92183074 232.02141018
+                226.44624213 203.25738931 125.19349641 121.32658508 130.00428964
+                167.43676857 169.36588297 168.38645076  29.58279603  31.19899202
+                 30.75826599   5.92344996  12.57920537  12.64571832   8.23451892
+                  8.26856497  35.82646468  29.342662    36.22165159]
+               [ 40.15739982  40.47241401  40.79219178  41.14411963  41.50190876
+                 41.80934074  66.81590976  68.05921213  68.6519006   69.30152766
+                 70.01097963  96.14641662  96.04484417  96.89110144  97.81897661
+                 98.62829468 237.26055111 240.35280825 243.54641271 245.04022528
+                 31.33842788  31.14650552  30.84702178  30.54399042  69.80098672
+                 68.7212013   68.62479627  32.13243303  32.34474067  32.54416771
+                 72.82501686  73.31372392  73.70922459 267.74318222 265.39839711
+                259.52741156 253.14023308 144.60810334 145.23371653 147.69958337
+                186.00278322 188.17713786 189.70144388  71.89351759  53.62266986
+                 54.40060855  22.41084398  22.51791234  22.62587258  17.11356079
+                 22.74567232  50.25232032  46.05692507  50.79345235]
+               [ 39.82138755  40.18347166  40.44598236  40.79219178  41.08959901
+                 41.64111176  66.33948982  67.47640971  68.01403337  68.60595247
+                 69.3953105   95.13188979  95.21297344  95.91593691  97.08847413
+                 97.75212171 229.94285119 237.26055111 240.66752705 242.74145162
+                 31.52890731  31.33842788  31.16401306  30.81155638  69.87135926
+                 68.80273568  68.71664209  31.93753588  32.13243303  32.34474067
+                 72.53476992  72.88981775  73.28094858 269.71986636 267.92938572
+                262.93698624 256.88902439 143.50635029 143.61251781 146.24080653
+                184.14064261 185.86853729 188.17713786  71.96823746  53.79651809
+                 54.60870874  22.30465649  22.41084398  22.51791234  17.07939535
+                 22.63671808  50.03002471  45.81009198  50.49899163]], ...],
+    "txt": [['Lines:\nI lost\nKevin ' 'will                ' 'line\nand            '
+              'and\nthe             ' '(and                ' 'the\nout             '
+              'you                 ' "don't\n pkg          "], ...]
+}
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/synthtext/textdet.py b/mmocr-dev-1.x/dataset_zoo/synthtext/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..4f35f5bc7736c46e4f595a97b0ca9dc1d46122f3
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/synthtext/textdet.py
@@ -0,0 +1,30 @@
+data_root = 'data/synthtext'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='magnet:?xt=urn:btih:2dba9518166cbd141534cbf381aa3e99a08'
+                '7e83c&tr=https%3A%2F%2Facademictorrents.com%2Fannounce.php&t'
+                'r=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2F'
+                'tracker.opentrackr.org%3A1337%2Fannounce',
+                save_name='SynthText.zip',
+                md5='8ae0309c80ff882f9d6ba5ea62cdb556',
+                split=['train'],
+                content=['image', 'annotation'],
+                mapping=[['SynthText/SynthText/*', 'textdet_imgs/train/'],
+                         ['textdet_imgs/train/gt.mat', 'annotations/gt.mat']]),
+        ]),
+    gatherer=dict(type='MonoGatherer', ann_name='gt.mat'),
+    parser=dict(type='SynthTextAnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+delete = ['SynthText', 'annotations']
+
+config_generator = dict(
+    type='TextDetConfigGenerator', data_root=data_root, test_anns=None)
diff --git a/mmocr-dev-1.x/dataset_zoo/synthtext/textrecog.py b/mmocr-dev-1.x/dataset_zoo/synthtext/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..2c16a32a677919cf03bdc9f7c28a5cb670bc3b9a
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/synthtext/textrecog.py
@@ -0,0 +1,31 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.obtainer.files.append(
+    dict(
+        url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+        'SynthText/subset_textrecog_train.json',
+        save_name='subset_textrecog_train.json',
+        md5='151c4edd1cc240362046d3a6f8f4b4c6',
+        split=['train'],
+        content=['annotation']))
+_base_.train_preparer.obtainer.files.append(
+    dict(
+        url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+        'SynthText/alphanumeric_textrecog_train.json',
+        save_name='alphanumeric_textrecog_train.json',
+        md5='89b80163435794ca117a124d081d68a9',
+        split=['train'],
+        content=['annotation']))
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    train_anns=[
+        dict(ann_file='textrecog_train.json', dataset_postfix=''),
+        dict(ann_file='subset_textrecog_train.json', dataset_postfix='sub'),
+        dict(
+            ann_file='alphanumeric_textrecog_train.json',
+            dataset_postfix='an'),
+    ],
+    test_anns=None)
diff --git a/mmocr-dev-1.x/dataset_zoo/synthtext/textspotting.py b/mmocr-dev-1.x/dataset_zoo/synthtext/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..dd98995d8766977c6a41b14f94b5f3ed41c84ea0
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/synthtext/textspotting.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/textocr/metafile.yml b/mmocr-dev-1.x/dataset_zoo/textocr/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..766ec5f01c87a30db6546bf014cb06fe197ef328
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/textocr/metafile.yml
@@ -0,0 +1,27 @@
+Name: 'Text OCR'
+Paper:
+  Title: 'TextOCR: Towards large-scale end-to-end reasoning for arbitrary-shaped scene text'
+  URL: https://openaccess.thecvf.com/content/CVPR2021/papers/Singh_TextOCR_Towards_Large-Scale_End-to-End_Reasoning_for_Arbitrary-Shaped_Scene_Text_CVPR_2021_paper.pdf
+  Venue: CVPR
+  Year: '2021'
+  BibTeX: '@inproceedings{singh2021textocr,
+    title={{TextOCR}: Towards large-scale end-to-end reasoning for arbitrary-shaped scene text},
+    author={Singh, Amanpreet and Pang, Guan and Toh, Mandy and Huang, Jing and Galuba, Wojciech and Hassner, Tal},
+    journal={The Conference on Computer Vision and Pattern Recognition},
+    year={2021}}'
+Data:
+  Website: https://paperswithcode.com/dataset/textocr
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: CC BY 4.0
+    Link: https://creativecommons.org/licenses/by/4.0/
+  Format: .json
diff --git a/mmocr-dev-1.x/dataset_zoo/textocr/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/textocr/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..4659f16a1672d910d2759e8c766219288f0d0c10
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/textocr/sample_anno.md
@@ -0,0 +1,57 @@
+**Text Detection/Recognition/Spotting**
+
+```json
+{
+  "imgs": {
+    "OpenImages_ImageID_1": {
+      "id": "OpenImages_ImageID_1",
+      "width": "INT, Width of the image",
+      "height": "INT, Height of the image",
+      "set": "Split train|val|test",
+      "filename": "train|test/OpenImages_ImageID_1.jpg"
+    },
+    "OpenImages_ImageID_2": {
+      "...": "..."
+    }
+  },
+  "anns": {
+    "OpenImages_ImageID_1_1": {
+      "id": "STR, OpenImages_ImageID_1_1, Specifies the nth annotation for an image",
+      "image_id": "OpenImages_ImageID_1",
+      "bbox": [
+        "FLOAT x1",
+        "FLOAT y1",
+        "FLOAT x2",
+        "FLOAT y2"
+      ],
+      "points": [
+        "FLOAT x1",
+        "FLOAT y1",
+        "FLOAT x2",
+        "FLOAT y2",
+        "...",
+        "FLOAT xN",
+        "FLOAT yN"
+      ],
+      "utf8_string": "text for this annotation",
+      "area": "FLOAT, area of this box"
+    },
+    "OpenImages_ImageID_1_2": {
+      "...": "..."
+    },
+    "OpenImages_ImageID_2_1": {
+      "...": "..."
+    }
+  },
+  "img2Anns": {
+    "OpenImages_ImageID_1": [
+      "OpenImages_ImageID_1_1",
+      "OpenImages_ImageID_1_2",
+      "OpenImages_ImageID_1_2"
+    ],
+    "OpenImages_ImageID_N": [
+      "..."
+    ]
+  }
+}
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/textocr/textdet.py b/mmocr-dev-1.x/dataset_zoo/textocr/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..482e293fffec2f0c9b70c1a06e03376efb6cd07f
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/textocr/textdet.py
@@ -0,0 +1,67 @@
+data_root = 'data/textocr'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://dl.fbaipublicfiles.com/textvqa/images/'
+                'train_val_images.zip',
+                save_name='textocr_textdet_img.zip',
+                md5='d12dd8098899044e4ae1af34db7ecfef',
+                content=['image'],
+                mapping=[[
+                    'textocr_textdet_img/train_images', 'textdet_imgs/images'
+                ]]),
+            dict(
+                url='https://dl.fbaipublicfiles.com/textvqa/data/textocr/'
+                'TextOCR_0.1_train.json',
+                save_name='textocr_textdet_train.json',
+                md5='0f8ba1beefd2ca4d08a4f82bcbe6cfb4',
+                content=['annotation'],
+                mapping=[[
+                    'textocr_textdet_train.json', 'annotations/train.json'
+                ]]),
+        ]),
+    gatherer=dict(
+        type='MonoGatherer',
+        ann_name='train.json',
+        img_dir='textdet_imgs/images'),
+    parser=dict(type='COCOTextDetAnnParser', variant='textocr'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'))
+
+val_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://dl.fbaipublicfiles.com/textvqa/images/'
+                'train_val_images.zip',
+                save_name='textocr_textdet_img.zip',
+                md5='d12dd8098899044e4ae1af34db7ecfef',
+                content=['image'],
+                mapping=[[
+                    'textocr_textdet_img/train_images', 'textdet_imgs/images'
+                ]]),
+            dict(
+                url='https://dl.fbaipublicfiles.com/textvqa/data/textocr/'
+                'TextOCR_0.1_val.json',
+                save_name='textocr_textdet_val.json',
+                md5='fb151383ea7b3c530cde9ef0d5c08347',
+                content=['annotation'],
+                mapping=[['textocr_textdet_val.json',
+                          'annotations/val.json']]),
+        ]),
+    gatherer=dict(
+        type='MonoGatherer',
+        ann_name='val.json',
+        img_dir='textdet_imgs/images'),
+    parser=dict(type='COCOTextDetAnnParser', variant='textocr'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'))
+delete = ['annotations', 'textocr_textdet_img']
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/textocr/textrecog.py b/mmocr-dev-1.x/dataset_zoo/textocr/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..6299aeb97ea3d9b130ab1f98c4dc0a3b8a9a4032
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/textocr/textrecog.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.val_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/textocr/textspotting.py b/mmocr-dev-1.x/dataset_zoo/textocr/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..b9e5a1d0f204a0646d635e0102fd40335098cbf1
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/textocr/textspotting.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.val_preparer.packer.type = 'TextSpottingPacker'
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/totaltext/metafile.yml b/mmocr-dev-1.x/dataset_zoo/totaltext/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..ea94f16028ac7ba5647cce72c2cac3f0f6063bfc
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/totaltext/metafile.yml
@@ -0,0 +1,30 @@
+Name: 'Total Text'
+Paper:
+  Title: "Total-Text: Towards Orientation Robustness in Scene Text Detection"
+  URL: https://link.springer.com/article/10.1007/s10032-019-00334-z
+  Venue: IJDAR
+  Year: '2020'
+  BibTeX: '@article{CK2019,
+  author = {Chee Kheng Chng and Chee Seng Chan and Chenglin Liu},
+  title = {Total-Text: Towards Orientation Robustness in Scene Text Detection},
+  journal = {International Journal on Document Analysis and Recognition (IJDAR)},
+  volume = {23},
+  pages = {31-52},
+  year = {2020},
+  doi = {10.1007/s10032-019-00334-z}}'
+Data:
+  Website: https://github.com/cs-chan/Total-Text-Dataset
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: BSD-3
+    Link: https://github.com/cs-chan/Total-Text-Dataset/blob/master/LICENSE
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/totaltext/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/totaltext/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..51ce61a2bf0d4e63ff2c001d492d2f3ac8c6bff6
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/totaltext/sample_anno.md
@@ -0,0 +1,6 @@
+**Text Detection/Spotting**
+
+```text
+x: [[259 313 389 427 354 302]], y: [[542 462 417 459 507 582]], ornt: [u'c'], transcriptions: [u'PAUL']
+x: [[400 478 494 436]], y: [[398 380 448 465]], ornt: [u'#'], transcriptions: [u'#']
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/totaltext/textdet.py b/mmocr-dev-1.x/dataset_zoo/totaltext/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..58aa986ec07aeddd90d54d884ad470ace4d7b486
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/totaltext/textdet.py
@@ -0,0 +1,62 @@
+data_root = 'data/totaltext'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://universityofadelaide.box.com/shared/static/'
+                '8xro7hnvb0sqw5e5rxm73tryc59j6s43.zip',
+                save_name='totaltext.zip',
+                md5='5b56d71a4005a333cf200ff35ce87f75',
+                content=['image'],
+                mapping=[['totaltext/Images/Train', 'textdet_imgs/train']]),
+            dict(
+                url='https://universityofadelaide.box.com/shared/static/'
+                '2vmpvjb48pcrszeegx2eznzc4izan4zf.zip',
+                save_name='txt_format.zip',
+                md5='53377a83420b4a0244304467512134e8',
+                content=['annotation'],
+                mapping=[['txt_format/Train', 'annotations/train']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img(\d+)\.([jJ][pP][gG])', r'poly_gt_img\1.txt']),
+    parser=dict(type='TotaltextTextDetAnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://universityofadelaide.box.com/shared/static/'
+                '8xro7hnvb0sqw5e5rxm73tryc59j6s43.zip',
+                save_name='totaltext.zip',
+                md5='5b56d71a4005a333cf200ff35ce87f75',
+                content=['image'],
+                mapping=[['totaltext/Images/Test', 'textdet_imgs/test']]),
+            dict(
+                url='https://universityofadelaide.box.com/shared/static/'
+                '2vmpvjb48pcrszeegx2eznzc4izan4zf.zip',
+                save_name='txt_format.zip',
+                md5='53377a83420b4a0244304467512134e8',
+                content=['annotation'],
+                mapping=[['txt_format/Test', 'annotations/test']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img(\d+)\.([jJ][pP][gG])', r'poly_gt_img\1.txt']),
+    parser=dict(type='TotaltextTextDetAnnParser'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+delete = ['totaltext', 'txt_format', 'annotations']
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/totaltext/textrecog.py b/mmocr-dev-1.x/dataset_zoo/totaltext/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..07d03dfba2df6010298dea11e5066eb890556680
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/totaltext/textrecog.py
@@ -0,0 +1,8 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.train_preparer.packer.type = 'TextRecogCropPacker'
+_base_.test_preparer.packer.type = 'TextRecogCropPacker'
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/totaltext/textspotting.py b/mmocr-dev-1.x/dataset_zoo/totaltext/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..8b242440c59070ddab0858f149c6d2556ed8ee8b
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/totaltext/textspotting.py
@@ -0,0 +1,34 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.gatherer.img_dir = 'textdet_imgs/train'
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+
+_base_.test_preparer.gatherer.img_dir = 'textdet_imgs/test'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.obtainer.files = [
+    dict(
+        url='https://universityofadelaide.box.com/shared/static/'
+        '8xro7hnvb0sqw5e5rxm73tryc59j6s43.zip',
+        save_name='totaltext.zip',
+        md5='5b56d71a4005a333cf200ff35ce87f75',
+        content=['image'],
+        mapping=[['totaltext/Images/Test', 'textdet_imgs/test']]),
+    dict(
+        url='https://universityofadelaide.box.com/shared/static/'
+        '2vmpvjb48pcrszeegx2eznzc4izan4zf.zip',
+        save_name='txt_format.zip',
+        md5='53377a83420b4a0244304467512134e8',
+        content=['annotation'],
+        mapping=[['txt_format/Test', 'annotations/test']]),
+    dict(
+        url='https://download.openmmlab.com/mmocr/data/1.x/'
+        'textspotting/totaltext/lexicons.tar.gz',
+        save_name='totaltext_lexicons.tar.gz',
+        md5='59e3dd01ee83355043ac69437e2e2ff2',
+        content=['annotation'],
+        mapping=[['totaltext_lexicons/lexicons', 'lexicons']]),
+]
+
+delete = ['totaltext', 'txt_format', 'annotations', 'totaltext_lexicons']
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/wildreceipt/kie.py b/mmocr-dev-1.x/dataset_zoo/wildreceipt/kie.py
new file mode 100644
index 0000000000000000000000000000000000000000..fc900bed755a2d71c5ca2744a7fb6d8378ae5f3b
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/wildreceipt/kie.py
@@ -0,0 +1,71 @@
+data_root = 'data/wildreceipt'
+cache_path = 'data/cache'
+
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/'
+                'wildreceipt.tar',
+                save_name='wildreceipt.tar',
+                md5='2a2c4a1b4777fb4fe185011e17ad46ae',
+                content=['image', 'annotation'],
+                mapping=[
+                    [
+                        'wildreceipt/wildreceipt/class_list.txt',
+                        'class_list.txt'
+                    ],
+                    ['wildreceipt/wildreceipt/dict.txt', 'dict.txt'],
+                    [
+                        'wildreceipt/wildreceipt/train.txt',
+                        'annotations/train.txt'
+                    ],
+                    [
+                        'wildreceipt/wildreceipt/image_files/*/*/*.*',
+                        'image_files'
+                    ],
+                ]),
+        ]),
+    gatherer=dict(
+        type='MonoGatherer', ann_name='train.txt', img_dir='image_files'),
+    parser=dict(type='WildreceiptKIEAnnParser'),
+    packer=dict(type='WildReceiptPacker'),
+    dumper=dict(type='WildreceiptOpensetDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://download.openmmlab.com/mmocr/data/'
+                'wildreceipt.tar',
+                save_name='wildreceipt.tar',
+                md5='2a2c4a1b4777fb4fe185011e17ad46ae',
+                content=['image', 'annotation'],
+                mapping=[
+                    [
+                        'wildreceipt/wildreceipt/class_list.txt',
+                        'class_list.txt'
+                    ],
+                    ['wildreceipt/wildreceipt/dict.txt', 'dict.txt'],
+                    [
+                        'wildreceipt/wildreceipt/test.txt',
+                        'annotations/test.txt'
+                    ],
+                    [
+                        'wildreceipt/wildreceipt/image_files/*/*/*.*',
+                        'image_files'
+                    ],
+                ]),
+        ]),
+    gatherer=dict(
+        type='MonoGatherer', img_dir='image_files', ann_name='test.txt'),
+    parser=dict(type='WildreceiptKIEAnnParser'),
+    packer=dict(type='WildReceiptPacker'),
+    dumper=dict(type='WildreceiptOpensetDumper'),
+)
+delete = ['wildreceipt', 'annotations']
diff --git a/mmocr-dev-1.x/dataset_zoo/wildreceipt/metafile.yml b/mmocr-dev-1.x/dataset_zoo/wildreceipt/metafile.yml
new file mode 100644
index 0000000000000000000000000000000000000000..20f9a352ab9cc4e16401fccee88b46ce47257079
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/wildreceipt/metafile.yml
@@ -0,0 +1,30 @@
+Name: 'WildReceipt'
+Paper:
+  Title: "Spatial Dual-Modality Graph Reasoning for Key Information Extraction"
+  URL: https://arxiv.org/pdf/2103.14470.pdf
+  Venue: arXiv
+  Year: '2021'
+  BibTeX: '@article{sun2021spatial,
+  title={Spatial Dual-Modality Graph Reasoning for Key Information Extraction},
+  author={Sun, Hongbin and Kuang, Zhanghui and Yue, Xiaoyu and Lin, Chenhao and Zhang, Wayne},
+  journal={arXiv preprint arXiv:2103.14470},
+  year={2021}
+}
+'
+Data:
+  Website: https://download.openmmlab.com/mmocr/data/wildreceipt.tar
+  Language:
+    - English
+  Scene:
+    - Receipt
+  Granularity:
+    - Word
+  Tasks:
+    - kie
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
diff --git a/mmocr-dev-1.x/dataset_zoo/wildreceipt/sample_anno.md b/mmocr-dev-1.x/dataset_zoo/wildreceipt/sample_anno.md
new file mode 100644
index 0000000000000000000000000000000000000000..e5a0dcea280bb58b4a53d8d5f6893af2983175f2
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/wildreceipt/sample_anno.md
@@ -0,0 +1,45 @@
+**KIE**
+
+```json
+// Close Set
+{
+  "file_name": "image_files/Image_16/11/d5de7f2a20751e50b84c747c17a24cd98bed3554.jpeg",
+  "height": 1200,
+  "width": 1600,
+  "annotations":
+    [
+      {
+        "box": [550.0, 190.0, 937.0, 190.0, 937.0, 104.0, 550.0, 104.0],
+        "text": "SAFEWAY",
+        "label": 1
+      },
+      {
+        "box": [1048.0, 211.0, 1074.0, 211.0, 1074.0, 196.0, 1048.0, 196.0],
+        "text": "TM",
+        "label": 25
+      }
+    ], //...
+}
+
+// Open Set
+{
+  "file_name": "image_files/Image_12/10/845be0dd6f5b04866a2042abd28d558032ef2576.jpeg",
+  "height": 348,
+  "width": 348,
+  "annotations":
+    [
+      {
+        "box": [114.0, 19.0, 230.0, 19.0, 230.0, 1.0, 114.0, 1.0],
+        "text": "CHOEUN",
+        "label": 2,
+        "edge": 1
+      },
+      {
+        "box": [97.0, 35.0, 236.0, 35.0, 236.0, 19.0, 97.0, 19.0],
+        "text": "KOREANRESTAURANT",
+        "label": 2,
+        "edge": 1
+      }
+    ]
+}
+```
diff --git a/mmocr-dev-1.x/dataset_zoo/wildreceipt/textdet.py b/mmocr-dev-1.x/dataset_zoo/wildreceipt/textdet.py
new file mode 100644
index 0000000000000000000000000000000000000000..ec6b359a57665c7a87bf99d70f9436ee0dc5eef0
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/wildreceipt/textdet.py
@@ -0,0 +1,14 @@
+_base_ = ['kie.py']
+
+_base_.train_preparer.update(
+    dict(
+        parser=dict(type='WildreceiptTextDetAnnParser'),
+        packer=dict(type='TextDetPacker'),
+        dumper=dict(type='JsonDumper')))
+_base_.test_preparer.update(
+    dict(
+        parser=dict(type='WildreceiptTextDetAnnParser'),
+        packer=dict(type='TextDetPacker'),
+        dumper=dict(type='JsonDumper')))
+
+config_generator = dict(type='TextDetConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/wildreceipt/textrecog.py b/mmocr-dev-1.x/dataset_zoo/wildreceipt/textrecog.py
new file mode 100644
index 0000000000000000000000000000000000000000..db54cb5e2480c3370adb83dd0de7844850e8801b
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/wildreceipt/textrecog.py
@@ -0,0 +1,15 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.update(
+    dict(
+        parser=dict(type='WildreceiptTextDetAnnParser'),
+        packer=dict(type='TextRecogCropPacker'),
+        dumper=dict(type='JsonDumper')))
+
+_base_.test_preparer.update(
+    dict(
+        parser=dict(type='WildreceiptTextDetAnnParser'),
+        packer=dict(type='TextRecogCropPacker'),
+        dumper=dict(type='JsonDumper')))
+
+config_generator = dict(type='TextRecogConfigGenerator')
diff --git a/mmocr-dev-1.x/dataset_zoo/wildreceipt/textspotting.py b/mmocr-dev-1.x/dataset_zoo/wildreceipt/textspotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..9a9124fc1ba01ffa6a69ccf383c08d4e4528cc68
--- /dev/null
+++ b/mmocr-dev-1.x/dataset_zoo/wildreceipt/textspotting.py
@@ -0,0 +1,6 @@
+_base_ = ['textdet.py']
+
+_base_.train_preparer.packer.type = 'TextSpottingPacker'
+_base_.test_preparer.packer.type = 'TextSpottingPacker'
+
+config_generator = dict(type='TextSpottingConfigGenerator')
diff --git a/mmocr-dev-1.x/demo/demo_densetext_det.jpg b/mmocr-dev-1.x/demo/demo_densetext_det.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..62906f6c71fe0595c6bbc3d52bc52052fd16bb02
Binary files /dev/null and b/mmocr-dev-1.x/demo/demo_densetext_det.jpg differ
diff --git a/mmocr-dev-1.x/demo/demo_kie.jpeg b/mmocr-dev-1.x/demo/demo_kie.jpeg
new file mode 100755
index 0000000000000000000000000000000000000000..51014d8e4c0ddfb24a1c353cb074ddd0118ff86d
Binary files /dev/null and b/mmocr-dev-1.x/demo/demo_kie.jpeg differ
diff --git a/mmocr-dev-1.x/demo/demo_text_det.jpg b/mmocr-dev-1.x/demo/demo_text_det.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..320e8d424847c5121b99927c7068201946e118e0
Binary files /dev/null and b/mmocr-dev-1.x/demo/demo_text_det.jpg differ
diff --git a/mmocr-dev-1.x/demo/demo_text_ocr.jpg b/mmocr-dev-1.x/demo/demo_text_ocr.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..a01dd6d72025e46ce40fad5fd29d46835d4e150e
Binary files /dev/null and b/mmocr-dev-1.x/demo/demo_text_ocr.jpg differ
diff --git a/mmocr-dev-1.x/demo/demo_text_recog.jpg b/mmocr-dev-1.x/demo/demo_text_recog.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..d99159834693b01746fe7ff74ce8dcd205f25db0
Binary files /dev/null and b/mmocr-dev-1.x/demo/demo_text_recog.jpg differ
diff --git a/mmocr-dev-1.x/demo/resources/demo_kie_pred.png b/mmocr-dev-1.x/demo/resources/demo_kie_pred.png
new file mode 100644
index 0000000000000000000000000000000000000000..4a84d0c9713cc793ac21a93736d2b8f07bc476d0
Binary files /dev/null and b/mmocr-dev-1.x/demo/resources/demo_kie_pred.png differ
diff --git a/mmocr-dev-1.x/demo/resources/det_vis.png b/mmocr-dev-1.x/demo/resources/det_vis.png
new file mode 100644
index 0000000000000000000000000000000000000000..2e798f0536f8ca4212762a4a065fef0f7c3d3d49
Binary files /dev/null and b/mmocr-dev-1.x/demo/resources/det_vis.png differ
diff --git a/mmocr-dev-1.x/demo/resources/kie_vis.png b/mmocr-dev-1.x/demo/resources/kie_vis.png
new file mode 100644
index 0000000000000000000000000000000000000000..2302c7062407a9f229f8da3a8fd4e30b9e763155
Binary files /dev/null and b/mmocr-dev-1.x/demo/resources/kie_vis.png differ
diff --git a/mmocr-dev-1.x/demo/resources/log_analysis_demo.png b/mmocr-dev-1.x/demo/resources/log_analysis_demo.png
new file mode 100644
index 0000000000000000000000000000000000000000..fe795f3345004ff0652adca953bf97e11df038d2
Binary files /dev/null and b/mmocr-dev-1.x/demo/resources/log_analysis_demo.png differ
diff --git a/mmocr-dev-1.x/demo/resources/rec_vis.png b/mmocr-dev-1.x/demo/resources/rec_vis.png
new file mode 100644
index 0000000000000000000000000000000000000000..f51bfd91103689d832580a94050d3d1a408c446a
Binary files /dev/null and b/mmocr-dev-1.x/demo/resources/rec_vis.png differ
diff --git a/mmocr-dev-1.x/dicts/chinese_english_digits.txt b/mmocr-dev-1.x/dicts/chinese_english_digits.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2fb5f7326d863a2eefb67777df6becfb15671275
--- /dev/null
+++ b/mmocr-dev-1.x/dicts/chinese_english_digits.txt
@@ -0,0 +1,11377 @@
+!
+"
+#
+$
+%
+&
+'
+(
+)
+*
++
+,
+-
+.
+/
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+:
+;
+<
+=
+>
+?
+@
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
+[
+\
+]
+^
+_
+`
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+{
+|
+}
+~
+®
+°
+±
+³
+´
+·
+Â
+Ä
+Ç
+È
+É
+Ê
+Ô
+×
+Ü
+ß
+à
+ä
+è
+é
+ì
+ò
+ó
+ô
+ö
+÷
+ü
+ō
+ɑ
+˙
+Ω
+β
+δ
+ο
+Д
+з
+ـ
+–
+—
+―
+‖
+‘
+’
+“
+”
+•
+‥
+…
+‰
+′
+※
+€
+℃
+™
+Ⅰ
+Ⅱ
+Ⅲ
+Ⅳ
+Ⅴ
+Ⅵ
+→
+∅
+∈
+−
+√
+∞
+∶
+≠
+≤
+①
+─
+━
+┌
+■
+□
+▪
+▲
+△
+▶
+▸
+▼
+▽
+◆
+◇
+○
+◎
+◥
+★
+☆
+☑
+♀
+♥
+♪
+♭
+✕
+❤
+、
+。
+々
+〇
+〈
+〉
+《
+》
+「
+」
+『
+』
+【
+】
+〔
+〕
+〖
+〗
+〜
+ぁ
+あ
+ぃ
+い
+ぅ
+う
+ぇ
+え
+お
+か
+が
+き
+ぎ
+く
+ぐ
+け
+げ
+こ
+ご
+さ
+ざ
+し
+じ
+す
+ず
+せ
+ぜ
+そ
+ぞ
+た
+だ
+ち
+ぢ
+っ
+つ
+づ
+て
+で
+と
+ど
+な
+に
+ぬ
+ね
+の
+は
+ば
+ぱ
+ひ
+び
+ぴ
+ふ
+ぶ
+ぷ
+へ
+べ
+ぺ
+ほ
+ぼ
+ぽ
+ま
+み
+む
+め
+も
+ゃ
+や
+ゅ
+ゆ
+ょ
+よ
+ら
+り
+る
+れ
+ろ
+わ
+ゑ
+を
+ん
+゜
+ァ
+ア
+ィ
+イ
+ゥ
+ウ
+ェ
+エ
+ォ
+オ
+カ
+ガ
+キ
+ギ
+ク
+グ
+ケ
+ゲ
+コ
+ゴ
+サ
+ザ
+シ
+ジ
+ス
+ズ
+セ
+ゼ
+ソ
+ゾ
+タ
+ダ
+チ
+ッ
+ツ
+ヅ
+テ
+デ
+ト
+ド
+ナ
+ニ
+ヌ
+ネ
+ノ
+ハ
+バ
+パ
+ヒ
+ビ
+ピ
+フ
+ブ
+プ
+ヘ
+ベ
+ペ
+ホ
+ボ
+ポ
+マ
+ミ
+ム
+メ
+モ
+ャ
+ヤ
+ュ
+ユ
+ョ
+ヨ
+ラ
+リ
+ル
+レ
+ロ
+ワ
+ヱ
+ヲ
+ン
+ヴ
+ヵ
+ヶ
+ー
+㎝
+㎡
+㓥
+㔉
+㖞
+㧑
+㶉
+㺍
+䁖
+䇲
+䌷
+䌸
+䌹
+䌽
+䍁
+䓕
+䗖
+䜣
+䝙
+䠙
+䯄
+䴕
+䴖
+䴗
+䴙
+一
+丁
+七
+万
+丈
+三
+上
+下
+不
+与
+丐
+丑
+专
+且
+丕
+世
+丘
+丙
+业
+丛
+东
+丝
+丞
+両
+丢
+丣
+两
+严
+丧
+丨
+个
+丫
+丬
+中
+丰
+丱
+串
+临
+丶
+丸
+丹
+为
+主
+丼
+丽
+举
+丿
+乂
+乃
+乄
+久
+么
+义
+之
+乌
+乍
+乎
+乏
+乐
+乒
+乓
+乔
+乖
+乗
+乘
+乙
+乜
+九
+乞
+也
+习
+乡
+书
+乩
+买
+乱
+乳
+乸
+乾
+亀
+亁
+亂
+了
+予
+争
+事
+二
+亍
+于
+亏
+云
+互
+亓
+五
+井
+亘
+亚
+些
+亜
+亟
+亡
+亢
+交
+亥
+亦
+产
+亨
+亩
+享
+京
+亭
+亮
+亲
+亳
+亵
+亶
+亸
+亹
+人
+亻
+亿
+什
+仁
+仂
+仃
+仄
+仅
+仆
+仇
+仉
+今
+介
+仍
+从
+仏
+仑
+仓
+仔
+仕
+他
+仗
+付
+仙
+仝
+仞
+仟
+仠
+仡
+代
+令
+以
+仨
+仪
+仫
+们
+仭
+仮
+仰
+仱
+仲
+仳
+仵
+件
+价
+任
+份
+仿
+企
+伃
+伈
+伉
+伊
+伋
+伍
+伎
+伏
+伐
+休
+伓
+伖
+众
+优
+伙
+会
+伛
+伝
+伞
+伟
+传
+伢
+伣
+伤
+伥
+伦
+伧
+伩
+伪
+伫
+伬
+伯
+估
+伱
+伲
+伴
+伶
+伷
+伸
+伺
+伻
+似
+伽
+伾
+佃
+但
+佈
+佉
+佌
+位
+低
+住
+佐
+佑
+体
+佔
+何
+佗
+佘
+余
+佚
+佛
+作
+佝
+佞
+佟
+你
+佢
+佣
+佤
+佥
+佧
+佩
+佬
+佮
+佯
+佰
+佳
+佴
+併
+佶
+佷
+佸
+佹
+佺
+佻
+佼
+佽
+佾
+使
+侁
+侂
+侃
+侄
+來
+侈
+侉
+例
+侍
+侏
+侑
+侔
+侗
+侘
+供
+侜
+依
+侠
+価
+侣
+侥
+侦
+侧
+侨
+侩
+侪
+侬
+侭
+侮
+侯
+侲
+侵
+侹
+侼
+便
+俀
+係
+促
+俄
+俅
+俆
+俉
+俊
+俎
+俏
+俐
+俑
+俗
+俘
+俙
+俚
+俛
+俜
+保
+俞
+俟
+信
+俣
+俤
+俦
+俧
+俨
+俩
+俪
+俫
+俬
+俭
+修
+俯
+俱
+俳
+俴
+俵
+俶
+俷
+俸
+俺
+俾
+倅
+倉
+個
+倌
+倍
+倏
+倐
+們
+倒
+倓
+倔
+倕
+倖
+倘
+候
+倚
+倛
+倜
+倞
+借
+倡
+倢
+値
+倥
+倦
+倨
+倩
+倪
+倫
+倬
+倭
+倮
+倳
+倴
+倶
+倷
+倸
+倹
+债
+值
+倾
+偀
+偁
+偃
+偄
+假
+偈
+偌
+偎
+偏
+偓
+偕
+偘
+做
+停
+偢
+健
+偪
+偬
+偭
+偰
+偱
+偲
+側
+偶
+偷
+偻
+偾
+偿
+傀
+傃
+傅
+傈
+傍
+傎
+傒
+傕
+備
+傜
+傞
+傣
+傥
+傦
+傧
+储
+傩
+傪
+傫
+催
+傯
+傲
+傳
+債
+傷
+傺
+傻
+傾
+僁
+僄
+僆
+僇
+僊
+働
+僎
+像
+僔
+僖
+僚
+僛
+僜
+僝
+僡
+僤
+僦
+僧
+僪
+僬
+僭
+僮
+僰
+僱
+僳
+僴
+僵
+僶
+僸
+價
+僻
+僽
+僾
+僿
+儀
+儁
+儆
+儇
+儋
+儌
+儏
+儒
+儓
+儗
+儙
+儛
+償
+儡
+儣
+儦
+儲
+儴
+儵
+儽
+儾
+儿
+兀
+允
+元
+兄
+充
+兆
+先
+光
+克
+兌
+免
+児
+兑
+兒
+兔
+兕
+兖
+党
+兜
+兟
+兢
+入
+內
+全
+兩
+八
+公
+六
+兮
+兰
+共
+关
+兴
+兵
+其
+具
+典
+兹
+养
+兼
+兽
+兿
+冀
+冁
+内
+円
+冇
+冈
+冉
+冊
+册
+再
+冏
+冑
+冒
+冓
+冔
+冕
+冗
+写
+冚
+军
+农
+冞
+冠
+冢
+冤
+冥
+冧
+冨
+冬
+冯
+冰
+冱
+冲
+决
+冴
+况
+冶
+冷
+冻
+冼
+冽
+冿
+净
+凃
+凄
+准
+凇
+凈
+凉
+凊
+凋
+凌
+减
+凑
+凘
+凛
+凝
+几
+凡
+凤
+処
+凧
+凪
+凫
+凭
+凯
+凰
+凱
+凳
+凶
+凸
+凹
+出
+击
+凼
+函
+凿
+刀
+刁
+刃
+分
+切
+刈
+刊
+刌
+刍
+刎
+刑
+划
+刓
+刖
+列
+刘
+则
+刚
+创
+刜
+初
+删
+判
+別
+刨
+利
+别
+刬
+刭
+刮
+到
+刲
+刳
+刵
+制
+刷
+券
+刹
+刺
+刻
+刽
+刿
+剀
+剁
+剂
+剃
+剅
+則
+剉
+削
+剌
+前
+剎
+剐
+剑
+剔
+剖
+剚
+剜
+剞
+剟
+剡
+剣
+剤
+剥
+剧
+剨
+剩
+剪
+副
+剰
+割
+剸
+剺
+剽
+剿
+劂
+劄
+劈
+劓
+劖
+劘
+劙
+劚
+力
+劝
+办
+功
+加
+务
+劢
+劣
+动
+助
+努
+劫
+劬
+劭
+励
+劲
+劳
+労
+劵
+劷
+効
+劻
+劼
+劾
+势
+勃
+勇
+勉
+勋
+勍
+勐
+勑
+勒
+勔
+動
+勖
+勘
+務
+勚
+勝
+募
+勢
+勤
+勧
+勩
+勮
+勰
+勲
+勷
+勸
+勺
+勼
+勾
+勿
+匀
+匁
+匂
+匄
+包
+匆
+匈
+匊
+匌
+匍
+匏
+匐
+匕
+化
+北
+匙
+匜
+匝
+匠
+匡
+匣
+匤
+匦
+匪
+匮
+匯
+匳
+匹
+区
+医
+匼
+匽
+匾
+匿
+區
+十
+千
+卅
+升
+午
+卉
+半
+卍
+华
+协
+卑
+卒
+卓
+協
+单
+卖
+南
+単
+博
+卜
+卞
+卟
+占
+卡
+卢
+卣
+卤
+卦
+卧
+卨
+卫
+卬
+卭
+卮
+卯
+印
+危
+卲
+即
+却
+卵
+卷
+卸
+卺
+卻
+卼
+卿
+厂
+厄
+厅
+历
+厉
+压
+厌
+厍
+厎
+厐
+厓
+厔
+厕
+厖
+厘
+厚
+厝
+原
+厢
+厣
+厥
+厦
+厨
+厩
+厭
+厮
+厲
+厳
+厹
+去
+厾
+县
+叁
+参
+叄
+叆
+叇
+又
+叉
+及
+友
+双
+反
+収
+发
+叔
+取
+受
+变
+叙
+叛
+叞
+叟
+叠
+叡
+口
+古
+句
+另
+叨
+叩
+只
+叫
+召
+叭
+叮
+可
+台
+叱
+史
+右
+叵
+叶
+号
+司
+叹
+叻
+叼
+叽
+吁
+吃
+各
+吆
+合
+吉
+吊
+吋
+同
+名
+后
+吏
+吐
+向
+吒
+吓
+吔
+吕
+吖
+吗
+君
+吝
+吞
+吟
+吠
+吡
+否
+吧
+吨
+吩
+吪
+含
+听
+吭
+吮
+启
+吰
+吱
+吲
+吳
+吴
+吵
+吷
+吸
+吹
+吺
+吻
+吼
+吽
+吾
+吿
+呀
+呃
+呆
+呈
+呉
+告
+呋
+呎
+呐
+呒
+呓
+呔
+呕
+呖
+呗
+员
+呙
+呚
+呛
+呜
+呢
+呣
+呤
+呥
+呦
+周
+呪
+呫
+呰
+呱
+呲
+味
+呴
+呵
+呶
+呷
+呸
+呺
+呻
+呼
+命
+呿
+咀
+咁
+咂
+咄
+咆
+咇
+咈
+咉
+咋
+和
+咍
+咎
+咏
+咐
+咑
+咒
+咔
+咕
+咖
+咗
+咘
+咙
+咚
+咛
+咝
+咢
+咣
+咤
+咥
+咦
+咧
+咨
+咩
+咪
+咫
+咬
+咭
+咮
+咯
+咱
+咲
+咳
+咶
+咷
+咸
+咺
+咻
+咽
+咾
+咿
+哀
+品
+哂
+哃
+哄
+哆
+哇
+哈
+哉
+哋
+哌
+响
+哎
+哏
+哐
+哑
+哒
+哓
+哔
+哕
+哗
+哙
+哚
+哜
+哝
+哞
+哟
+員
+哢
+哣
+哤
+哥
+哦
+哧
+哨
+哩
+哪
+哭
+哮
+哲
+哳
+哺
+哼
+哽
+哿
+唁
+唅
+唆
+唇
+唈
+唉
+唊
+唎
+唏
+唐
+唑
+唔
+唛
+唝
+唞
+唠
+唡
+唢
+唣
+唤
+唥
+唦
+唧
+唪
+唫
+唬
+唭
+售
+唯
+唰
+唱
+唲
+唳
+唵
+唶
+唷
+唸
+唻
+唼
+唽
+唾
+唿
+啀
+啁
+啃
+啄
+啅
+商
+啈
+啉
+啊
+啋
+啍
+問
+啐
+啑
+啒
+啕
+啖
+啗
+啛
+啜
+啝
+啟
+啡
+啤
+啥
+啦
+啧
+啩
+啪
+啫
+啬
+啭
+啮
+啰
+啱
+啲
+啳
+啴
+啵
+啶
+啷
+啸
+啻
+啼
+啾
+喀
+喁
+喂
+喃
+善
+喆
+喇
+喈
+喉
+喊
+喋
+喏
+喐
+喑
+喓
+喔
+喘
+喙
+喜
+喝
+喞
+喟
+喢
+喣
+喤
+喦
+喧
+喨
+喪
+喫
+喬
+喭
+單
+喯
+喰
+喱
+喳
+喵
+営
+喷
+喹
+喺
+喻
+喼
+喽
+喾
+嗄
+嗅
+嗈
+嗉
+嗋
+嗌
+嗍
+嗐
+嗑
+嗒
+嗓
+嗔
+嗖
+嗗
+嗙
+嗛
+嗜
+嗝
+嗞
+嗟
+嗡
+嗢
+嗣
+嗤
+嗥
+嗦
+嗨
+嗪
+嗫
+嗬
+嗮
+嗯
+嗰
+嗱
+嗲
+嗳
+嗵
+嗷
+嗻
+嗽
+嗾
+嗿
+嘀
+嘁
+嘄
+嘅
+嘆
+嘈
+嘉
+嘌
+嘎
+嘏
+嘐
+嘒
+嘗
+嘘
+嘚
+嘛
+嘞
+嘟
+嘠
+嘡
+嘢
+嘣
+嘤
+嘥
+嘧
+嘬
+嘭
+嘱
+嘲
+嘴
+嘶
+嘷
+嘹
+嘻
+嘿
+噀
+噁
+噂
+噃
+噆
+噇
+噉
+噌
+噍
+噎
+噏
+噔
+噗
+噘
+噙
+噛
+噜
+噞
+噢
+噣
+噤
+器
+噩
+噪
+噫
+噬
+噭
+噱
+噳
+噶
+噷
+噻
+噼
+嚄
+嚅
+嚆
+嚋
+嚎
+嚏
+嚒
+嚓
+嚘
+嚚
+嚜
+嚟
+嚡
+嚢
+嚣
+嚤
+嚥
+嚬
+嚭
+嚯
+嚰
+嚱
+嚴
+嚵
+嚷
+嚺
+嚼
+嚿
+囂
+囄
+囊
+囋
+囍
+囏
+囐
+囓
+囔
+囗
+囚
+四
+囝
+回
+囟
+因
+囡
+团
+団
+囤
+囦
+囧
+囨
+囫
+园
+囮
+囯
+困
+囱
+囲
+図
+围
+囵
+囷
+囹
+固
+国
+图
+囿
+圂
+圃
+圄
+圆
+圈
+圉
+圊
+國
+圌
+圍
+圏
+圐
+園
+圖
+團
+圙
+圛
+圜
+圞
+土
+圠
+圣
+圥
+圧
+在
+圩
+圪
+圬
+圭
+圮
+圯
+地
+圳
+圴
+圹
+场
+圻
+圾
+圿
+址
+坂
+均
+坊
+坌
+坍
+坎
+坏
+坐
+坑
+块
+坚
+坛
+坜
+坝
+坞
+坟
+坠
+坡
+坣
+坤
+坦
+坨
+坩
+坪
+坫
+坬
+坭
+坯
+坰
+坱
+坳
+坵
+坷
+坺
+坻
+坼
+坾
+垂
+垃
+垄
+垅
+垆
+垇
+垊
+型
+垌
+垍
+垎
+垐
+垒
+垓
+垔
+垕
+垚
+垛
+垝
+垞
+垟
+垠
+垡
+垢
+垣
+垤
+垦
+垧
+垨
+垩
+垫
+垭
+垮
+垯
+垱
+垲
+垴
+垵
+垸
+垺
+垾
+垿
+埂
+埃
+埆
+埇
+埈
+埋
+埌
+城
+埏
+埒
+埔
+埕
+埗
+埘
+埙
+埚
+埜
+埝
+埞
+域
+埠
+埤
+埥
+埧
+埨
+埩
+埪
+埫
+埭
+埮
+埯
+埳
+埴
+埵
+埶
+執
+埸
+培
+基
+埼
+埽
+埿
+堀
+堂
+堃
+堆
+堇
+堉
+堋
+堌
+堍
+堎
+堑
+堕
+堙
+堛
+堞
+堠
+堡
+堣
+堤
+堦
+堧
+堨
+堪
+堭
+堮
+堰
+報
+堳
+場
+堵
+堶
+堺
+堼
+堽
+塀
+塁
+塄
+塅
+塆
+塇
+塈
+塉
+塌
+塍
+塑
+塔
+塘
+塙
+塚
+塝
+塞
+塠
+塨
+塩
+填
+塬
+塭
+塯
+塱
+塸
+塼
+塽
+塾
+塿
+墀
+墁
+境
+墄
+墅
+墈
+墉
+墊
+墋
+墍
+墐
+墒
+墓
+墕
+増
+墘
+墙
+增
+墟
+墠
+墡
+墦
+墨
+墩
+墹
+墺
+壁
+壅
+壆
+壇
+壈
+壊
+壌
+壑
+壒
+壓
+壕
+壖
+壝
+壞
+壡
+壤
+壩
+士
+壬
+壮
+声
+壱
+売
+壳
+壶
+壸
+壹
+壺
+壼
+壽
+夀
+处
+夅
+备
+変
+复
+夏
+夐
+夔
+夕
+外
+夙
+多
+夜
+够
+夠
+夡
+夢
+夤
+夥
+大
+天
+太
+夫
+夬
+夭
+央
+夯
+夰
+失
+头
+夷
+夸
+夹
+夺
+夼
+夾
+夿
+奀
+奁
+奂
+奄
+奅
+奇
+奈
+奉
+奋
+奌
+奎
+奏
+契
+奓
+奔
+奕
+奖
+套
+奘
+奚
+奠
+奡
+奢
+奣
+奤
+奥
+奧
+奨
+奫
+奭
+奰
+女
+奴
+奶
+奸
+她
+好
+妁
+如
+妃
+妄
+妆
+妇
+妈
+妉
+妊
+妍
+妒
+妓
+妖
+妗
+妘
+妙
+妞
+妣
+妤
+妥
+妨
+妩
+妪
+妫
+妬
+妮
+妯
+妲
+妳
+妹
+妻
+妼
+妾
+姁
+姅
+姆
+姉
+姊
+始
+姌
+姐
+姑
+姒
+姓
+委
+姗
+姘
+姚
+姜
+姝
+姞
+姣
+姤
+姥
+姨
+姪
+姫
+姬
+姮
+姱
+姵
+姹
+姺
+姻
+姿
+娀
+威
+娃
+娄
+娅
+娆
+娇
+娈
+娉
+娌
+娑
+娓
+娖
+娘
+娙
+娚
+娜
+娝
+娟
+娠
+娡
+娣
+娥
+娩
+娭
+娯
+娱
+娲
+娴
+娵
+娶
+娼
+婀
+婄
+婆
+婉
+婊
+婑
+婕
+婗
+婘
+婚
+婛
+婞
+婢
+婣
+婥
+婦
+婧
+婨
+婪
+婲
+婴
+婵
+婶
+婷
+婺
+婼
+婿
+媉
+媒
+媕
+媖
+媚
+媛
+媞
+媟
+媠
+媢
+媥
+媪
+媭
+媮
+媲
+媳
+媵
+媸
+媻
+媽
+媾
+媿
+嫁
+嫂
+嫄
+嫈
+嫉
+嫋
+嫌
+嫑
+嫒
+嫔
+嫖
+嫘
+嫚
+嫛
+嫜
+嫠
+嫡
+嫣
+嫦
+嫧
+嫩
+嫪
+嫫
+嫭
+嫮
+嫰
+嫱
+嫲
+嫳
+嫶
+嫽
+嬁
+嬃
+嬅
+嬇
+嬉
+嬐
+嬓
+嬖
+嬗
+嬛
+嬢
+嬬
+嬲
+嬴
+嬷
+嬾
+嬿
+孀
+孃
+孅
+子
+孑
+孓
+孔
+孕
+孖
+字
+存
+孙
+孚
+孛
+孜
+孝
+孟
+孢
+季
+孤
+孥
+学
+孩
+孪
+孬
+孭
+孰
+孱
+孲
+孳
+孵
+學
+孺
+孻
+孽
+宀
+宁
+它
+宄
+宅
+宇
+守
+安
+宋
+完
+宍
+宎
+宏
+宓
+宕
+宗
+官
+宙
+定
+宛
+宜
+宝
+实
+実
+宠
+审
+客
+宣
+室
+宥
+宦
+宪
+宫
+宬
+宮
+宰
+害
+宴
+宵
+家
+宸
+容
+宼
+宽
+宾
+宿
+寀
+寂
+寄
+寅
+密
+寇
+富
+寐
+寑
+寒
+寓
+寔
+寕
+寖
+寗
+寘
+寙
+寛
+寝
+寞
+察
+寡
+寢
+寤
+寥
+實
+寧
+寨
+審
+寮
+寯
+寰
+寶
+寸
+对
+寺
+寻
+导
+対
+寿
+封
+専
+尃
+射
+尅
+将
+將
+尉
+尊
+尋
+對
+小
+尐
+少
+尓
+尔
+尕
+尖
+尘
+尙
+尚
+尝
+尟
+尤
+尥
+尧
+尨
+尪
+尫
+尬
+尭
+尰
+就
+尴
+尸
+尹
+尺
+尻
+尼
+尽
+尾
+尿
+局
+屁
+层
+屃
+屄
+居
+屈
+屉
+届
+屋
+屌
+屍
+屎
+屏
+屐
+屑
+展
+屘
+屙
+屝
+属
+屟
+屠
+屡
+屣
+履
+屦
+屧
+屩
+屭
+屮
+屯
+山
+屳
+屴
+屹
+屺
+屼
+屾
+屿
+岁
+岂
+岈
+岊
+岌
+岍
+岏
+岐
+岑
+岔
+岕
+岖
+岗
+岘
+岙
+岚
+岛
+岜
+岝
+岞
+岡
+岢
+岣
+岧
+岨
+岩
+岫
+岬
+岭
+岱
+岳
+岵
+岷
+岸
+岽
+岿
+峁
+峃
+峄
+峇
+峋
+峒
+峘
+峙
+峛
+峞
+峠
+峡
+峣
+峤
+峥
+峦
+峧
+峨
+峩
+峪
+峭
+峯
+峰
+峻
+峿
+崀
+崁
+崂
+崃
+崄
+崆
+崇
+崈
+崋
+崌
+崎
+崐
+崑
+崒
+崔
+崕
+崖
+崙
+崚
+崛
+崞
+崟
+崠
+崣
+崤
+崦
+崧
+崩
+崭
+崮
+崱
+崴
+崶
+崷
+崽
+崾
+崿
+嵁
+嵂
+嵇
+嵊
+嵋
+嵌
+嵎
+嵒
+嵓
+嵔
+嵕
+嵖
+嵘
+嵙
+嵚
+嵛
+嵝
+嵡
+嵥
+嵦
+嵩
+嵫
+嵬
+嵯
+嵰
+嵲
+嵴
+嵷
+嵸
+嵺
+嵽
+嵾
+嶂
+嶅
+嶋
+嶌
+嶒
+嶓
+嶔
+嶘
+嶙
+嶛
+嶝
+嶞
+嶟
+嶨
+嶪
+嶭
+嶮
+嶰
+嶱
+嶲
+嶶
+嶷
+嶽
+嶾
+巁
+巂
+巃
+巅
+巇
+巉
+巌
+巍
+巏
+巑
+巖
+巘
+巛
+川
+州
+巡
+巢
+巣
+工
+左
+巧
+巨
+巩
+巫
+差
+巯
+己
+已
+巳
+巴
+巵
+巷
+巻
+巽
+巾
+巿
+币
+市
+布
+帅
+帆
+帇
+师
+帊
+希
+帏
+帐
+帑
+帔
+帕
+帖
+帘
+帙
+帚
+帛
+帜
+帝
+帟
+帡
+帢
+帣
+带
+帧
+帨
+師
+席
+帮
+帯
+帰
+帱
+帳
+帶
+帷
+常
+帻
+帼
+帽
+帿
+幂
+幄
+幅
+幌
+幓
+幔
+幕
+幙
+幛
+幝
+幞
+幠
+幡
+幢
+幣
+幤
+幥
+幨
+幩
+幪
+幭
+幮
+幰
+干
+平
+年
+幵
+并
+幷
+幸
+幹
+幺
+幻
+幼
+幽
+幾
+广
+庀
+庁
+広
+庄
+庆
+庇
+床
+庋
+序
+庐
+庑
+库
+应
+底
+庖
+店
+庙
+庚
+府
+庞
+废
+庠
+庤
+庥
+度
+座
+庪
+庭
+庳
+庵
+庶
+康
+庸
+庹
+庾
+廃
+廉
+廊
+廋
+廌
+廐
+廓
+廖
+廙
+廛
+廞
+廢
+廣
+廥
+廦
+廧
+廨
+廪
+廭
+延
+廷
+廸
+建
+廻
+廼
+廿
+开
+弁
+异
+弃
+弄
+弇
+弈
+弊
+弋
+弎
+式
+弐
+弑
+弒
+弓
+弔
+引
+弗
+弘
+弛
+弝
+弟
+张
+弢
+弥
+弦
+弧
+弨
+弩
+弪
+弭
+弮
+弯
+弰
+弱
+張
+弶
+強
+弸
+弹
+强
+弼
+弾
+彀
+彁
+彊
+彍
+彐
+归
+当
+彔
+录
+彖
+彗
+彘
+彝
+彟
+彡
+形
+彤
+彦
+彧
+彩
+彪
+彫
+彬
+彭
+彯
+彰
+影
+彳
+彴
+彷
+役
+彻
+彼
+彿
+往
+征
+徂
+径
+待
+徇
+很
+徉
+徊
+律
+後
+徐
+徒
+従
+徕
+得
+徘
+徙
+徚
+徜
+從
+御
+徧
+徨
+循
+徬
+徭
+微
+徯
+徳
+徴
+徵
+徶
+德
+徹
+徼
+徽
+心
+必
+忆
+忉
+忌
+忍
+忏
+忐
+忑
+忒
+忔
+忕
+忖
+志
+忘
+忙
+応
+忝
+忞
+忠
+忡
+忤
+忧
+忪
+快
+忭
+忮
+忱
+忳
+念
+忸
+忺
+忻
+忼
+忽
+忾
+忿
+怀
+态
+怂
+怃
+怄
+怅
+怆
+怊
+怍
+怎
+怏
+怐
+怑
+怒
+怓
+怔
+怕
+怖
+怗
+怙
+怚
+怛
+怜
+思
+怠
+怡
+急
+怦
+性
+怨
+怩
+怪
+怫
+怯
+怱
+怲
+怳
+怵
+总
+怼
+怿
+恁
+恂
+恃
+恄
+恇
+恈
+恋
+恌
+恍
+恐
+恑
+恒
+恓
+恕
+恙
+恚
+恛
+恝
+恟
+恠
+恢
+恣
+恤
+恧
+恨
+恩
+恪
+恫
+恬
+恭
+息
+恰
+恳
+恵
+恶
+恸
+恹
+恺
+恻
+恼
+恽
+恿
+悁
+悃
+悄
+悅
+悆
+悉
+悊
+悌
+悍
+悒
+悔
+悖
+悚
+悛
+悝
+悞
+悟
+悠
+悢
+患
+悦
+您
+悩
+悪
+悫
+悬
+悭
+悮
+悯
+悰
+悱
+悲
+悴
+悸
+悻
+悼
+惃
+惄
+情
+惆
+惇
+惉
+惊
+惋
+惏
+惑
+惓
+惔
+惕
+惘
+惙
+惚
+惛
+惜
+惝
+惟
+惠
+惡
+惦
+惧
+惨
+惩
+惫
+惬
+惭
+惮
+惯
+惰
+想
+惴
+惵
+惶
+惸
+惹
+惺
+愀
+愁
+愆
+愈
+愉
+愊
+愍
+愎
+意
+愒
+愓
+愔
+愕
+愗
+愚
+愛
+感
+愠
+愣
+愤
+愥
+愦
+愧
+愫
+愬
+愵
+愿
+慅
+慆
+慈
+慊
+態
+慌
+慎
+慐
+慑
+慒
+慓
+慕
+慙
+慜
+慝
+慞
+慠
+慢
+慥
+慧
+慨
+慬
+慭
+慰
+慱
+慴
+慵
+慶
+慷
+慽
+慾
+憀
+憁
+憂
+憋
+憍
+憎
+憔
+憕
+憖
+憘
+憚
+憝
+憧
+憨
+憩
+憬
+憭
+憯
+憰
+憲
+憷
+憸
+憹
+憺
+憾
+懁
+懂
+懃
+懆
+懈
+應
+懊
+懋
+懌
+懐
+懑
+懒
+懔
+懘
+懜
+懟
+懠
+懡
+懦
+懭
+懰
+懲
+懵
+懹
+懻
+懽
+懿
+戀
+戁
+戃
+戄
+戆
+戈
+戊
+戋
+戌
+戍
+戎
+戏
+成
+我
+戒
+戕
+或
+戗
+战
+戙
+戚
+戛
+戟
+戡
+戢
+戥
+戦
+截
+戫
+戬
+戭
+戮
+戲
+戳
+戴
+戶
+户
+戸
+戺
+戻
+戽
+戾
+房
+所
+扁
+扂
+扃
+扅
+扆
+扇
+扈
+扉
+扊
+手
+扌
+才
+扎
+扐
+扑
+扒
+打
+扔
+払
+托
+扙
+扚
+扛
+扜
+扞
+扠
+扡
+扢
+扣
+扤
+扥
+扦
+执
+扩
+扪
+扫
+扬
+扭
+扮
+扯
+扰
+扱
+扳
+扶
+批
+扼
+扽
+找
+承
+技
+抂
+抃
+抄
+抆
+抉
+把
+抌
+抏
+抑
+抒
+抓
+抔
+投
+抖
+抗
+折
+抚
+抛
+抜
+択
+抟
+抠
+抡
+抢
+护
+报
+抨
+披
+抬
+抱
+抵
+抶
+抹
+抻
+押
+抽
+抿
+拀
+拂
+拃
+拄
+担
+拆
+拇
+拈
+拉
+拊
+拌
+拍
+拎
+拏
+拐
+拑
+拒
+拓
+拔
+拖
+拗
+拘
+拙
+拚
+招
+拜
+拝
+拟
+拠
+拡
+拢
+拣
+拥
+拦
+拧
+拨
+择
+拫
+括
+拭
+拮
+拯
+拱
+拳
+拴
+拶
+拷
+拼
+拽
+拾
+拿
+持
+挂
+挃
+指
+挈
+按
+挎
+挐
+挑
+挒
+挓
+挖
+挙
+挚
+挛
+挜
+挝
+挞
+挟
+挠
+挡
+挢
+挣
+挤
+挥
+挦
+挨
+挪
+挫
+挭
+振
+挱
+挲
+挵
+挹
+挺
+挼
+挽
+挿
+捂
+捃
+捄
+捅
+捆
+捉
+捋
+捌
+捍
+捎
+捏
+捐
+捕
+捗
+捘
+捜
+捞
+损
+捡
+换
+捣
+捧
+捨
+捩
+捭
+据
+捰
+捱
+捲
+捴
+捶
+捷
+捺
+捻
+捽
+掀
+掁
+掂
+掅
+掇
+授
+掉
+掊
+掌
+掎
+掏
+掐
+排
+掕
+掖
+掘
+掞
+掟
+掠
+採
+探
+掣
+掤
+接
+控
+推
+掩
+措
+掬
+掮
+掯
+掰
+掱
+掲
+掳
+掴
+掷
+掸
+掹
+掺
+掻
+掼
+掾
+掿
+揃
+揄
+揆
+揈
+揉
+揌
+揍
+揎
+描
+提
+插
+揕
+揖
+揗
+揜
+揝
+揞
+揟
+揠
+握
+揣
+揥
+揦
+揩
+揪
+揫
+揭
+揰
+揲
+援
+揵
+揶
+揸
+揺
+揼
+揽
+揾
+揿
+搀
+搁
+搂
+搅
+搉
+搊
+搋
+搌
+損
+搎
+搏
+搐
+搒
+搓
+搔
+搕
+搘
+搚
+搜
+搞
+搠
+搡
+搢
+搣
+搤
+搥
+搦
+搧
+搨
+搪
+搬
+搭
+搯
+搰
+搴
+搵
+携
+搽
+搾
+摁
+摂
+摄
+摅
+摆
+摇
+摈
+摊
+摋
+摌
+摍
+摎
+摐
+摒
+摔
+摘
+摛
+摞
+摠
+摧
+摩
+摭
+摴
+摵
+摸
+摹
+摺
+摽
+撂
+撃
+撄
+撅
+撇
+撍
+撑
+撒
+撕
+撖
+撙
+撚
+撝
+撞
+撤
+撥
+撦
+撧
+撩
+撬
+播
+撮
+撰
+撱
+撴
+撵
+撶
+撷
+撸
+撺
+撼
+擀
+擂
+擅
+擉
+操
+擎
+擏
+擐
+擒
+擔
+擖
+擗
+擘
+據
+擞
+擢
+擤
+擦
+擩
+擫
+擷
+擸
+擿
+攀
+攃
+攉
+攋
+攒
+攕
+攘
+攚
+攝
+攞
+攥
+攧
+攩
+攫
+攮
+支
+攰
+攲
+收
+攸
+改
+攻
+攽
+放
+政
+故
+效
+敌
+敏
+救
+敔
+敕
+敖
+教
+敛
+敝
+敞
+敢
+散
+敦
+敧
+敩
+敫
+敬
+数
+敱
+敲
+整
+敷
+數
+敺
+敻
+斁
+斄
+斅
+文
+斉
+斋
+斌
+斎
+斐
+斑
+斒
+斓
+斗
+料
+斛
+斜
+斝
+斟
+斠
+斡
+斤
+斥
+斧
+斨
+斩
+斫
+断
+斮
+斯
+新
+斲
+斴
+斶
+斸
+方
+於
+施
+斿
+旁
+旂
+旃
+旄
+旅
+旆
+旋
+旌
+旍
+旎
+族
+旐
+旒
+旓
+旖
+旗
+旘
+旛
+旜
+旟
+无
+旡
+既
+日
+旦
+旧
+旨
+早
+旬
+旭
+旮
+旯
+旰
+旱
+旳
+旴
+旵
+时
+旷
+旸
+旺
+旻
+旼
+旿
+昀
+昂
+昃
+昄
+昆
+昇
+昈
+昉
+昊
+昌
+明
+昏
+昒
+易
+昔
+昕
+昙
+昚
+昝
+昞
+星
+映
+昣
+昤
+春
+昧
+昨
+昪
+昫
+昬
+昭
+是
+昰
+昱
+昳
+昴
+昵
+昶
+昺
+昼
+昽
+显
+晁
+時
+晃
+晅
+晊
+晋
+晌
+晏
+晒
+晓
+晔
+晕
+晖
+晗
+晙
+晚
+晛
+晞
+晟
+晡
+晢
+晣
+晤
+晥
+晦
+晧
+晨
+晩
+晫
+晬
+普
+景
+晰
+晳
+晴
+晶
+晷
+晹
+智
+晻
+晼
+晾
+暁
+暂
+暄
+暇
+暌
+暍
+暎
+暐
+暑
+暕
+暖
+暗
+暝
+暞
+暠
+暣
+暦
+暧
+暨
+暬
+暮
+暱
+暲
+暴
+暵
+暶
+暹
+暻
+暾
+曀
+曈
+曌
+曒
+曙
+曚
+曛
+曜
+曝
+曢
+曦
+曧
+曨
+曩
+曪
+曭
+曰
+曱
+曲
+曳
+更
+曵
+曷
+書
+曹
+曼
+曽
+曾
+替
+最
+朂
+會
+朅
+朆
+月
+有
+朊
+朋
+服
+朏
+朐
+朒
+朓
+朔
+朕
+朗
+朘
+望
+朝
+期
+朣
+朦
+木
+未
+末
+本
+札
+朮
+术
+朱
+朳
+朴
+朵
+朶
+机
+朽
+朿
+杀
+杂
+权
+杅
+杆
+杈
+杉
+杌
+李
+杏
+材
+村
+杓
+杕
+杖
+杙
+杜
+杞
+束
+杠
+条
+杢
+来
+杧
+杨
+杩
+杪
+杬
+杭
+杯
+杰
+東
+杲
+杳
+杵
+杷
+杻
+杼
+松
+板
+极
+构
+枅
+枇
+枉
+枋
+枌
+枍
+枎
+析
+枑
+枒
+枕
+林
+枘
+枚
+果
+枝
+枞
+枟
+枠
+枡
+枢
+枣
+枥
+枦
+枧
+枨
+枪
+枫
+枬
+枭
+枮
+枯
+枰
+枲
+枳
+枵
+架
+枷
+枸
+枹
+枻
+枿
+柁
+柂
+柃
+柄
+柅
+柈
+柊
+柎
+柏
+某
+柑
+柒
+染
+柔
+柖
+柘
+柙
+柚
+柜
+柝
+柞
+柟
+柠
+柢
+柣
+柤
+查
+柩
+柬
+柮
+柯
+柰
+柱
+柳
+柴
+柷
+柹
+柺
+査
+柽
+柿
+栀
+栂
+栃
+栄
+栅
+栆
+标
+栈
+栉
+栊
+栋
+栌
+栎
+栏
+栐
+树
+栒
+栓
+栖
+栗
+栘
+栜
+栝
+栟
+校
+栢
+栩
+株
+栯
+栱
+栲
+栳
+栴
+栵
+样
+核
+根
+栻
+格
+栽
+栾
+栿
+桀
+桁
+桂
+桃
+桄
+桅
+框
+案
+桉
+桊
+桋
+桌
+桎
+桐
+桑
+桓
+桔
+桕
+桚
+桜
+桝
+桞
+桠
+桡
+桢
+档
+桤
+桥
+桦
+桧
+桨
+桩
+桫
+桮
+桯
+桲
+桴
+桶
+桷
+桹
+桻
+梀
+梁
+梃
+梅
+梆
+梏
+梐
+梓
+梗
+條
+梠
+梡
+梢
+梣
+梦
+梧
+梨
+梩
+梪
+梫
+梬
+梭
+梯
+械
+梱
+梲
+梳
+梴
+梵
+梶
+梼
+梽
+梾
+梿
+检
+棁
+棂
+棃
+棄
+棅
+棆
+棉
+棊
+棋
+棍
+棐
+棑
+棒
+棓
+棕
+棘
+棙
+棚
+棝
+棠
+棡
+棣
+棨
+棪
+棫
+棬
+森
+棯
+棰
+棱
+棲
+棵
+棸
+棹
+棺
+棻
+棼
+棽
+椀
+椁
+椅
+椆
+椇
+椋
+植
+椎
+椐
+椑
+椒
+椓
+椗
+椙
+検
+椟
+椠
+椤
+椩
+椫
+椭
+椮
+椰
+椲
+椴
+椸
+椹
+椽
+椿
+楂
+楅
+楇
+楍
+楎
+楔
+楕
+楗
+楘
+楙
+楚
+楛
+楝
+楞
+楟
+楠
+楢
+楣
+楤
+楥
+楦
+楨
+楩
+楪
+楫
+業
+楮
+楯
+楰
+楱
+極
+楶
+楷
+楸
+楹
+楺
+楼
+楽
+榀
+概
+榃
+榄
+榅
+榆
+榇
+榈
+榉
+榊
+榍
+榔
+榕
+榖
+榘
+榛
+榜
+榞
+榠
+榥
+榧
+榨
+榫
+榭
+榰
+榱
+榴
+榷
+榺
+榻
+榼
+榾
+槁
+槃
+槅
+槇
+槊
+構
+槌
+槎
+槐
+槑
+槓
+槔
+槖
+様
+槙
+槚
+槛
+槟
+槠
+槢
+槥
+槩
+槬
+槭
+槱
+槲
+槵
+槻
+槽
+槾
+槿
+樀
+樂
+樊
+樋
+樏
+樓
+樕
+樗
+樘
+標
+樛
+樝
+樟
+模
+樣
+樨
+権
+横
+樫
+樭
+樯
+樱
+樵
+樹
+樽
+樾
+橄
+橅
+橇
+橉
+橌
+橎
+橐
+橑
+橘
+橙
+橚
+橛
+橞
+機
+橡
+橦
+橪
+橱
+橹
+橺
+橼
+橿
+檀
+檄
+檇
+檉
+檊
+檋
+檍
+檎
+檐
+檑
+檔
+檖
+檗
+檛
+檝
+檞
+檠
+檥
+檧
+檨
+檩
+檫
+檬
+檰
+檵
+檻
+檿
+櫁
+櫂
+櫆
+櫈
+櫌
+櫐
+櫑
+櫜
+櫞
+櫡
+櫰
+櫻
+櫼
+欃
+欉
+權
+欌
+欎
+欓
+欕
+欝
+欠
+次
+欢
+欣
+欤
+欦
+欧
+欬
+欱
+欲
+欷
+欸
+欹
+欺
+欻
+款
+欿
+歃
+歆
+歇
+歈
+歉
+歊
+歌
+歓
+歔
+歕
+歗
+歘
+歙
+歛
+歜
+歠
+止
+正
+此
+步
+武
+歧
+歩
+歪
+歯
+歳
+歴
+歸
+歹
+死
+歼
+殁
+殂
+殃
+殄
+殆
+殇
+殉
+殊
+残
+殍
+殑
+殒
+殓
+殖
+殘
+殚
+殛
+殡
+殢
+殣
+殪
+殭
+殳
+殴
+段
+殷
+殽
+殿
+毁
+毂
+毅
+毈
+毉
+毋
+母
+毎
+每
+毐
+毒
+毓
+比
+毕
+毖
+毗
+毘
+毙
+毚
+毛
+毡
+毨
+毫
+毬
+毯
+毰
+毳
+毵
+毶
+毸
+毹
+毻
+毽
+氄
+氅
+氆
+氇
+氍
+氎
+氏
+氐
+民
+氓
+气
+氕
+氖
+気
+氘
+氙
+氚
+氛
+氟
+氡
+氢
+氣
+氤
+氦
+氧
+氨
+氩
+氪
+氮
+氯
+氰
+氲
+水
+氵
+氷
+永
+氹
+氽
+氾
+氿
+汀
+汁
+求
+汃
+汆
+汇
+汉
+汊
+汍
+汎
+汏
+汐
+汔
+汕
+汗
+汚
+汛
+汜
+汝
+汞
+江
+池
+污
+汣
+汤
+汧
+汨
+汩
+汪
+汫
+汭
+汯
+汰
+汲
+汴
+汶
+汸
+汹
+決
+汽
+汾
+沁
+沂
+沃
+沄
+沅
+沆
+沇
+沈
+沉
+沋
+沌
+沍
+沏
+沐
+沒
+沓
+沔
+沕
+沙
+沚
+沛
+沜
+沟
+没
+沢
+沣
+沤
+沥
+沦
+沧
+沨
+沩
+沪
+沫
+沬
+沭
+沮
+沱
+沲
+河
+沴
+沵
+沶
+沸
+油
+治
+沼
+沽
+沾
+沿
+泂
+泃
+泄
+泅
+泆
+泇
+泉
+泊
+泌
+泐
+泓
+泔
+法
+泖
+泗
+泘
+泚
+泛
+泜
+泝
+泞
+泟
+泠
+泡
+波
+泣
+泥
+注
+泪
+泫
+泬
+泮
+泯
+泰
+泱
+泲
+泳
+泵
+泷
+泸
+泺
+泻
+泼
+泽
+泾
+洁
+洄
+洇
+洈
+洊
+洋
+洌
+洎
+洏
+洑
+洒
+洗
+洙
+洚
+洛
+洞
+洟
+洣
+洤
+津
+洧
+洨
+洩
+洪
+洫
+洭
+洮
+洱
+洲
+洳
+洴
+洵
+洸
+洹
+洺
+活
+洼
+洽
+派
+洿
+流
+浃
+浄
+浅
+浆
+浇
+浈
+浉
+浊
+测
+浍
+济
+浏
+浐
+浑
+浒
+浓
+浔
+浕
+浘
+浙
+浚
+浛
+浜
+浞
+浠
+浡
+浣
+浤
+浥
+浦
+浩
+浪
+浬
+浮
+浯
+浰
+浱
+浲
+浴
+海
+浸
+浼
+浿
+涂
+涅
+消
+涉
+涌
+涎
+涑
+涒
+涓
+涔
+涕
+涖
+涘
+涙
+涚
+涛
+涜
+涝
+涞
+涟
+涠
+涡
+涢
+涣
+涤
+涥
+润
+涧
+涨
+涩
+涪
+涫
+涬
+涮
+涯
+液
+涴
+涵
+涷
+涸
+涼
+涿
+淀
+淄
+淅
+淆
+淇
+淈
+淋
+淌
+淏
+淐
+淑
+淓
+淕
+淖
+淘
+淙
+淛
+淜
+淝
+淞
+淠
+淡
+淢
+淤
+淦
+淨
+淫
+淬
+淮
+淯
+淰
+深
+淳
+混
+淹
+添
+淼
+渀
+清
+渇
+済
+渉
+渊
+渋
+渌
+渍
+渎
+渏
+渐
+渑
+渓
+渔
+渕
+渖
+渗
+渙
+渚
+減
+渝
+渟
+渠
+渡
+渢
+渣
+渤
+渥
+渧
+温
+渫
+測
+渭
+港
+渰
+渱
+渲
+渴
+渶
+游
+渺
+渻
+渼
+湁
+湃
+湄
+湆
+湉
+湋
+湍
+湎
+湑
+湓
+湔
+湖
+湘
+湛
+湜
+湝
+湟
+湡
+湢
+湣
+湦
+湧
+湩
+湫
+湮
+湲
+湳
+湴
+湼
+湾
+湿
+満
+溁
+溂
+溃
+溅
+溆
+溇
+溉
+溊
+溋
+溍
+溎
+溏
+源
+溓
+溔
+準
+溘
+溜
+溞
+溟
+溠
+溡
+溢
+溥
+溦
+溧
+溪
+溫
+溯
+溱
+溲
+溳
+溴
+溵
+溶
+溷
+溺
+溻
+溽
+滁
+滂
+滃
+滆
+滇
+滈
+滉
+滋
+滍
+滏
+滑
+滓
+滔
+滕
+滗
+滘
+滙
+滚
+滜
+滝
+滞
+滟
+滠
+满
+滢
+滤
+滥
+滦
+滧
+滨
+滩
+滪
+滫
+滮
+滴
+滹
+滺
+滽
+漂
+漆
+漈
+漉
+漋
+漍
+漎
+漏
+漓
+演
+漕
+漖
+漘
+漙
+漠
+漢
+漤
+漦
+漩
+漪
+漫
+漭
+漯
+漰
+漱
+漳
+漴
+漶
+漷
+漹
+漻
+漼
+漾
+潀
+潄
+潆
+潇
+潈
+潋
+潍
+潎
+潏
+潒
+潓
+潕
+潘
+潜
+潝
+潞
+潟
+潠
+潢
+潤
+潦
+潩
+潬
+潭
+潮
+潲
+潴
+潵
+潸
+潺
+潼
+潽
+潾
+澂
+澄
+澈
+澉
+澌
+澍
+澎
+澒
+澔
+澗
+澘
+澙
+澛
+澜
+澡
+澣
+澤
+澥
+澧
+澨
+澪
+澫
+澭
+澳
+澴
+澶
+澹
+澼
+澾
+激
+濂
+濅
+濆
+濈
+濉
+濊
+濋
+濎
+濑
+濒
+濙
+濛
+濞
+濟
+濠
+濡
+濦
+濩
+濫
+濬
+濮
+濯
+濸
+瀁
+瀄
+瀌
+瀍
+瀎
+瀑
+瀔
+瀖
+瀚
+瀛
+瀜
+瀞
+瀡
+瀣
+瀩
+瀬
+瀰
+瀱
+瀴
+瀵
+瀹
+瀺
+瀼
+瀽
+灂
+灈
+灉
+灊
+灌
+灏
+灑
+灒
+灞
+灩
+火
+灬
+灭
+灯
+灰
+灵
+灶
+灸
+灺
+灼
+灾
+灿
+炀
+炅
+炆
+炉
+炊
+炌
+炎
+炒
+炓
+炔
+炕
+炖
+炘
+炙
+炜
+炝
+炟
+炡
+炤
+炧
+炫
+炬
+炭
+炮
+炯
+炰
+炱
+炳
+炵
+炷
+炸
+点
+為
+炼
+炽
+炿
+烀
+烁
+烂
+烃
+烈
+烊
+烋
+烓
+烔
+烘
+烙
+烚
+烛
+烜
+烝
+烟
+烤
+烦
+烧
+烨
+烩
+烫
+烬
+热
+烯
+烷
+烹
+烺
+烻
+烽
+焄
+焉
+焊
+焌
+焏
+焐
+焒
+焓
+焕
+焖
+焗
+焘
+焙
+焚
+焜
+焞
+焟
+焠
+無
+焦
+焩
+焫
+焮
+焯
+焰
+焱
+焲
+焴
+然
+焹
+焻
+焼
+煀
+煁
+煃
+煅
+煊
+煌
+煍
+煎
+煐
+煓
+煕
+煚
+煜
+煞
+煟
+煠
+煤
+煦
+照
+煨
+煮
+煲
+煳
+煴
+煵
+煶
+煸
+煹
+煺
+煽
+煿
+熂
+熄
+熇
+熉
+熊
+熏
+熔
+熕
+熘
+熙
+熛
+熜
+熝
+熟
+熠
+熤
+熨
+熬
+熭
+熯
+熱
+熳
+熴
+熵
+熸
+熹
+熿
+燀
+燂
+燃
+燅
+燈
+燊
+燋
+燎
+燏
+燐
+燑
+燔
+燕
+燖
+燚
+燝
+營
+燠
+燢
+燥
+燧
+燬
+燮
+燹
+燿
+爆
+爇
+爊
+爋
+爎
+爔
+爘
+爚
+爝
+爞
+爟
+爢
+爧
+爨
+爪
+爬
+爭
+爰
+爱
+爵
+父
+爷
+爸
+爹
+爻
+爽
+爿
+牁
+牂
+片
+版
+牋
+牌
+牍
+牏
+牒
+牖
+牙
+牛
+牝
+牟
+牡
+牢
+牣
+牤
+牥
+牦
+牧
+物
+牮
+牯
+牲
+牴
+牵
+牷
+牸
+特
+牺
+牻
+牾
+牿
+犀
+犁
+犄
+犇
+犉
+犊
+犋
+犍
+犏
+犒
+犘
+犜
+犟
+犨
+犬
+犭
+犯
+犰
+犴
+状
+犷
+犸
+犹
+犺
+犼
+犽
+狁
+狂
+狃
+狄
+狈
+狌
+狍
+狎
+狐
+狒
+狖
+狗
+狘
+狙
+狛
+狝
+狞
+狟
+狠
+狡
+狢
+狥
+狧
+狨
+狩
+独
+狭
+狮
+狯
+狰
+狱
+狲
+狳
+狴
+狶
+狷
+狸
+狺
+狻
+狼
+猁
+猃
+猄
+猇
+猊
+猋
+猎
+猕
+猖
+猗
+猘
+猛
+猜
+猝
+猞
+猟
+猡
+猢
+猥
+猧
+猩
+猪
+猫
+猬
+献
+猰
+猱
+猲
+猳
+猴
+猵
+猶
+猷
+猸
+猾
+猿
+獂
+獈
+獍
+獏
+獐
+獒
+獗
+獘
+獚
+獜
+獝
+獠
+獣
+獦
+獨
+獬
+獭
+獮
+獯
+獲
+獴
+獶
+獻
+獾
+玁
+玃
+玄
+率
+玈
+玉
+玊
+王
+玍
+玎
+玑
+玒
+玓
+玕
+玖
+玗
+玘
+玙
+玚
+玛
+玟
+玠
+玡
+玢
+玥
+玦
+玩
+玫
+玭
+玮
+环
+现
+玱
+玲
+玳
+玶
+玷
+玺
+玻
+玼
+珀
+珂
+珅
+珈
+珉
+珊
+珌
+珍
+珎
+珏
+珐
+珑
+珓
+珔
+珖
+珙
+珝
+珞
+珠
+珣
+珥
+珦
+珧
+珩
+珪
+班
+珮
+珰
+珲
+珵
+珸
+珹
+珺
+珽
+現
+球
+琅
+理
+琇
+琉
+琊
+琍
+琎
+琏
+琐
+琖
+琚
+琛
+琠
+琢
+琣
+琤
+琥
+琦
+琨
+琪
+琫
+琬
+琭
+琮
+琯
+琰
+琱
+琲
+琳
+琴
+琵
+琶
+琻
+琼
+瑀
+瑁
+瑂
+瑃
+瑄
+瑅
+瑆
+瑊
+瑌
+瑍
+瑑
+瑔
+瑕
+瑗
+瑙
+瑚
+瑛
+瑜
+瑞
+瑟
+瑠
+瑢
+瑧
+瑨
+瑪
+瑭
+瑮
+瑰
+瑱
+瑳
+瑴
+瑶
+瑷
+瑸
+瑽
+瑾
+瑿
+璀
+璁
+璂
+璃
+璅
+璆
+璇
+璈
+璊
+璋
+璎
+璐
+璕
+璘
+璙
+璚
+璜
+璝
+璞
+璟
+璠
+璤
+璥
+璧
+璨
+璩
+璪
+璲
+璵
+璷
+璸
+璹
+璺
+璿
+瓀
+瓅
+瓈
+瓊
+瓎
+瓒
+瓖
+瓘
+瓚
+瓛
+瓜
+瓞
+瓟
+瓠
+瓢
+瓣
+瓤
+瓦
+瓨
+瓬
+瓮
+瓯
+瓴
+瓶
+瓷
+瓹
+瓻
+瓿
+甀
+甂
+甃
+甄
+甈
+甋
+甍
+甑
+甒
+甓
+甔
+甕
+甖
+甗
+甘
+甙
+甚
+甜
+生
+甡
+產
+甥
+甦
+用
+甩
+甪
+甫
+甬
+甭
+甯
+田
+由
+甲
+申
+甴
+电
+男
+甸
+町
+画
+甽
+甾
+甿
+畀
+畅
+畇
+畈
+畊
+畋
+界
+畎
+畏
+畑
+畓
+畔
+留
+畚
+畛
+畜
+畝
+畟
+畠
+畤
+略
+畦
+畧
+番
+畫
+畬
+畯
+畲
+畳
+畴
+當
+畷
+畸
+畹
+畼
+畽
+畿
+疁
+疃
+疆
+疈
+疋
+疍
+疎
+疏
+疐
+疑
+疔
+疖
+疗
+疙
+疚
+疝
+疟
+疠
+疡
+疢
+疣
+疤
+疥
+疧
+疫
+疬
+疭
+疮
+疯
+疰
+疱
+疲
+疳
+疴
+疵
+疸
+疹
+疻
+疼
+疽
+疾
+痁
+痂
+痃
+痄
+病
+症
+痈
+痉
+痊
+痌
+痍
+痎
+痏
+痒
+痔
+痕
+痖
+痗
+痘
+痛
+痞
+痟
+痠
+痡
+痢
+痣
+痤
+痦
+痧
+痨
+痩
+痪
+痫
+痯
+痰
+痱
+痲
+痴
+痹
+痺
+痻
+痼
+痾
+痿
+瘀
+瘁
+瘅
+瘆
+瘈
+瘉
+瘊
+瘌
+瘏
+瘐
+瘕
+瘖
+瘗
+瘘
+瘙
+瘛
+瘝
+瘟
+瘠
+瘢
+瘣
+瘤
+瘥
+瘦
+瘨
+瘩
+瘪
+瘫
+瘭
+瘰
+瘱
+瘳
+瘴
+瘵
+瘸
+瘼
+瘾
+瘿
+癀
+癃
+癌
+癏
+癒
+癔
+癖
+癙
+癜
+癞
+癢
+癣
+癥
+癦
+癨
+癪
+癫
+癯
+癴
+癶
+癸
+癹
+発
+登
+發
+白
+百
+癿
+皁
+皂
+的
+皆
+皇
+皈
+皋
+皎
+皑
+皓
+皖
+皙
+皛
+皝
+皞
+皤
+皦
+皪
+皮
+皱
+皲
+皴
+皿
+盂
+盅
+盆
+盈
+益
+盍
+盎
+盏
+盐
+监
+盒
+盔
+盖
+盗
+盘
+盛
+盜
+盝
+盟
+盡
+盢
+監
+盥
+盩
+盬
+盭
+目
+盯
+盱
+盲
+直
+盵
+相
+盹
+盻
+盼
+盾
+眀
+省
+眄
+眆
+眇
+眈
+眉
+眊
+看
+県
+眎
+眐
+眙
+眚
+眛
+眞
+真
+眠
+眢
+眦
+眨
+眩
+眬
+眭
+眯
+眴
+眵
+眶
+眷
+眸
+眹
+眺
+眼
+眽
+着
+睁
+睃
+睅
+睆
+睇
+睍
+睎
+睐
+睑
+睒
+睖
+睗
+睚
+睛
+睟
+睠
+睡
+睢
+督
+睥
+睦
+睨
+睩
+睪
+睫
+睬
+睭
+睰
+睳
+睷
+睹
+睺
+睽
+睾
+睿
+瞀
+瞂
+瞄
+瞅
+瞆
+瞋
+瞌
+瞍
+瞎
+瞑
+瞒
+瞓
+瞚
+瞟
+瞠
+瞢
+瞤
+瞥
+瞧
+瞩
+瞪
+瞬
+瞭
+瞯
+瞰
+瞳
+瞵
+瞻
+瞽
+瞾
+瞿
+矂
+矇
+矋
+矍
+矐
+矑
+矖
+矗
+矛
+矜
+矞
+矟
+矢
+矣
+知
+矧
+矨
+矩
+矫
+矬
+短
+矮
+矰
+矱
+矲
+石
+矶
+矸
+矻
+矼
+矽
+矾
+矿
+砀
+码
+砂
+砃
+砅
+砆
+砉
+砌
+砍
+砏
+砑
+砒
+研
+砖
+砗
+砘
+砚
+砜
+砝
+砟
+砠
+砢
+砣
+砥
+砦
+砧
+砬
+砭
+砮
+砯
+砰
+砲
+破
+砷
+砸
+砹
+砺
+砻
+砼
+砾
+础
+硁
+硅
+硇
+硉
+硊
+硌
+硍
+硎
+硏
+硐
+硒
+硕
+硖
+硗
+硙
+硚
+硝
+硡
+硪
+硫
+硬
+确
+硰
+硵
+硷
+硼
+硾
+硿
+碁
+碃
+碆
+碇
+碉
+碌
+碍
+碎
+碏
+碐
+碑
+碓
+碔
+碕
+碗
+碘
+碚
+碛
+碜
+碟
+碡
+碣
+碥
+碧
+碨
+碪
+碫
+碰
+碱
+碲
+碳
+碴
+碶
+確
+碻
+碾
+磁
+磂
+磅
+磈
+磉
+磊
+磋
+磎
+磏
+磐
+磑
+磒
+磔
+磕
+磖
+磙
+磛
+磜
+磝
+磡
+磢
+磨
+磬
+磲
+磳
+磴
+磵
+磷
+磹
+磺
+磻
+磾
+磿
+礁
+礅
+礉
+礌
+礐
+礒
+礓
+礜
+礞
+礡
+礤
+礧
+礨
+礮
+礲
+礴
+礶
+示
+礼
+礽
+社
+礿
+祀
+祁
+祃
+祄
+祅
+祆
+祇
+祈
+祉
+祊
+祋
+祎
+祏
+祐
+祓
+祔
+祕
+祖
+祗
+祚
+祛
+祜
+祝
+神
+祟
+祠
+祢
+祤
+祥
+祧
+票
+祫
+祭
+祯
+祱
+祲
+祴
+祶
+祷
+祸
+祺
+祼
+祾
+祿
+禀
+禁
+禂
+禄
+禅
+禇
+禊
+禋
+禎
+福
+禑
+禔
+禖
+禗
+禘
+禚
+禛
+禜
+禟
+禤
+禥
+禧
+禨
+禩
+禫
+禮
+禳
+禴
+禵
+禷
+禹
+禺
+离
+禽
+禾
+秀
+私
+秃
+秄
+秅
+秆
+秇
+秉
+秋
+种
+秏
+科
+秒
+秔
+秕
+秖
+秘
+秛
+秞
+租
+秠
+秣
+秤
+秦
+秧
+秩
+秪
+秫
+秬
+秭
+积
+称
+秴
+秸
+移
+秽
+秾
+秿
+稀
+稂
+稃
+稅
+稆
+稊
+程
+稌
+稍
+税
+稔
+稖
+稗
+稙
+稚
+稛
+稞
+稠
+稣
+稭
+種
+稱
+稲
+稳
+稷
+稹
+稺
+稻
+稼
+稽
+稾
+稿
+穀
+穂
+穅
+穆
+穇
+穈
+穉
+穊
+穋
+積
+穏
+穑
+穗
+穞
+穟
+穠
+穡
+穧
+穨
+穬
+穰
+穴
+穵
+究
+穷
+穸
+穹
+空
+穼
+穽
+穾
+穿
+窀
+突
+窃
+窄
+窅
+窆
+窈
+窊
+窋
+窌
+窍
+窎
+窑
+窒
+窓
+窕
+窖
+窗
+窘
+窙
+窜
+窝
+窞
+窟
+窠
+窡
+窣
+窥
+窦
+窨
+窩
+窫
+窬
+窭
+窰
+窱
+窳
+窴
+窸
+窹
+窺
+窻
+窽
+窾
+窿
+竂
+竉
+立
+竑
+竖
+竘
+站
+竛
+竜
+竝
+竞
+竟
+章
+竣
+童
+竦
+竭
+竮
+端
+竹
+竺
+竻
+竽
+竿
+笃
+笄
+笆
+笈
+笉
+笊
+笋
+笏
+笐
+笑
+笔
+笕
+笙
+笛
+笞
+笠
+笡
+笤
+笥
+符
+笨
+笪
+笫
+第
+笭
+笮
+笯
+笱
+笲
+笳
+笴
+笵
+笸
+笹
+笺
+笼
+笾
+筇
+筈
+等
+筋
+筌
+筏
+筐
+筑
+筒
+筓
+答
+策
+筚
+筛
+筜
+筝
+筠
+筢
+筤
+筥
+筦
+筩
+筭
+筮
+筯
+筰
+筱
+筲
+筳
+筴
+筵
+筷
+筹
+筻
+筼
+签
+简
+箄
+箅
+箇
+箊
+箍
+箎
+箐
+箑
+箒
+箓
+箔
+箕
+算
+箘
+箜
+箝
+箠
+管
+箢
+箣
+箦
+箧
+箨
+箩
+箪
+箫
+箬
+箭
+箯
+箱
+箴
+箵
+箸
+箻
+箼
+箾
+篁
+篃
+篆
+篇
+篌
+篑
+篓
+篘
+篙
+篚
+篛
+篝
+篡
+篢
+篥
+篦
+篨
+篪
+篭
+篮
+篯
+篱
+篲
+篷
+篸
+篹
+篻
+篼
+篾
+簁
+簃
+簄
+簇
+簈
+簉
+簋
+簌
+簏
+簕
+簖
+簜
+簟
+簠
+簡
+簦
+簧
+簨
+簪
+簬
+簰
+簳
+簴
+簵
+簸
+簿
+籀
+籁
+籊
+籋
+籌
+籍
+籏
+籐
+籓
+籛
+籝
+籞
+籢
+籣
+籤
+籥
+籧
+籯
+米
+籴
+籹
+籺
+类
+籼
+籽
+籾
+粃
+粆
+粉
+粊
+粋
+粐
+粑
+粒
+粔
+粕
+粗
+粘
+粜
+粝
+粞
+粟
+粢
+粤
+粥
+粧
+粩
+粪
+粮
+粱
+粲
+粳
+粶
+粹
+粺
+粻
+粼
+粽
+精
+粿
+糀
+糁
+糅
+糇
+糈
+糊
+糌
+糍
+糒
+糕
+糖
+糗
+糙
+糜
+糟
+糠
+糦
+糧
+糨
+糯
+糵
+糸
+系
+紀
+紃
+約
+紅
+紊
+納
+紑
+純
+級
+紞
+素
+索
+紧
+紫
+累
+紵
+紽
+紾
+絁
+終
+組
+絆
+絇
+経
+絏
+絓
+絕
+絖
+絙
+絜
+絠
+絣
+給
+絩
+絪
+絫
+絮
+絵
+絷
+絺
+絻
+絿
+綀
+綅
+綈
+綌
+綍
+經
+綖
+継
+続
+綝
+綟
+綦
+綪
+綮
+綯
+綴
+綷
+緃
+緊
+緌
+緎
+総
+緒
+線
+緝
+緣
+緩
+緺
+緼
+縁
+縄
+縆
+縓
+縕
+縠
+縢
+縦
+縩
+縮
+縯
+縺
+縻
+縿
+繁
+繂
+繄
+繇
+繊
+繋
+繍
+繐
+繑
+織
+繖
+繙
+繟
+繣
+繳
+繸
+繻
+纁
+纂
+纆
+纇
+纑
+纔
+纕
+纚
+纛
+纟
+纠
+纡
+红
+纣
+纤
+纥
+约
+级
+纨
+纩
+纪
+纫
+纬
+纭
+纮
+纯
+纰
+纱
+纲
+纳
+纴
+纵
+纶
+纷
+纸
+纹
+纺
+纻
+纼
+纽
+纾
+线
+绀
+绁
+绂
+练
+组
+绅
+细
+织
+终
+绉
+绊
+绋
+绌
+绍
+绎
+经
+绐
+绑
+绒
+结
+绔
+绕
+绖
+绗
+绘
+给
+绚
+绛
+络
+绝
+绞
+统
+绠
+绡
+绢
+绣
+绤
+绥
+绦
+继
+绨
+绩
+绪
+绫
+续
+绮
+绯
+绰
+绱
+绲
+绳
+维
+绵
+绶
+绷
+绸
+绹
+绺
+绻
+综
+绽
+绾
+绿
+缀
+缁
+缃
+缄
+缅
+缆
+缇
+缈
+缉
+缊
+缋
+缌
+缍
+缎
+缏
+缐
+缑
+缒
+缓
+缔
+缕
+编
+缗
+缘
+缙
+缚
+缛
+缜
+缝
+缞
+缟
+缠
+缡
+缢
+缣
+缤
+缥
+缦
+缧
+缨
+缩
+缪
+缫
+缬
+缭
+缮
+缯
+缰
+缱
+缲
+缳
+缴
+缵
+缶
+缸
+缺
+缼
+缾
+罂
+罃
+罄
+罅
+罈
+罉
+罍
+罐
+网
+罔
+罕
+罗
+罘
+罙
+罚
+罛
+罝
+罟
+罠
+罡
+罢
+罣
+罥
+罦
+罨
+罩
+罪
+罭
+置
+罯
+署
+罳
+罴
+罶
+罹
+罻
+罽
+罾
+罿
+羀
+羁
+羂
+羅
+羆
+羇
+羉
+羊
+羌
+美
+羑
+羒
+羔
+羕
+羖
+羗
+羚
+羜
+羝
+羞
+羟
+羠
+羡
+羣
+群
+羧
+羨
+義
+羫
+羭
+羯
+羰
+羱
+羲
+羴
+羵
+羶
+羸
+羹
+羼
+羽
+羾
+羿
+翀
+翁
+翂
+翃
+翅
+翈
+翊
+翌
+翎
+翏
+習
+翔
+翕
+翖
+翘
+翙
+翚
+翛
+翟
+翠
+翡
+翣
+翥
+翦
+翩
+翫
+翬
+翮
+翯
+翰
+翱
+翲
+翳
+翶
+翻
+翼
+翾
+翿
+耀
+老
+考
+耄
+者
+耆
+耇
+耈
+耋
+而
+耍
+耎
+耐
+耒
+耔
+耕
+耖
+耗
+耘
+耙
+耜
+耡
+耢
+耤
+耥
+耦
+耧
+耨
+耩
+耭
+耰
+耱
+耳
+耵
+耶
+耷
+耸
+耻
+耽
+耿
+聂
+聃
+聆
+聊
+聋
+职
+聍
+聒
+联
+聖
+聘
+聚
+聛
+聡
+聩
+聪
+聰
+聱
+聲
+聴
+聻
+聽
+聿
+肃
+肄
+肆
+肇
+肉
+肋
+肌
+肏
+肐
+肓
+肖
+肘
+肚
+肛
+肜
+肝
+肞
+肟
+肠
+股
+肢
+肣
+肤
+肥
+肦
+肩
+肪
+肫
+肬
+肭
+肮
+肯
+肱
+育
+肳
+肴
+肶
+肸
+肺
+肼
+肽
+肾
+肿
+胀
+胁
+胂
+胃
+胄
+胆
+胈
+背
+胍
+胎
+胐
+胔
+胖
+胗
+胘
+胙
+胚
+胛
+胜
+胝
+胞
+胠
+胡
+胤
+胥
+胧
+胨
+胩
+胪
+胫
+胬
+胭
+胮
+胯
+胰
+胱
+胲
+胳
+胴
+胶
+胸
+胹
+胺
+胻
+胼
+能
+胾
+脁
+脂
+脃
+脆
+脇
+脉
+脊
+脍
+脎
+脏
+脐
+脑
+脒
+脓
+脔
+脖
+脘
+脙
+脚
+脝
+脞
+脟
+脡
+脢
+脣
+脤
+脩
+脬
+脯
+脰
+脱
+脲
+脳
+脶
+脷
+脸
+脹
+脽
+脾
+脿
+腄
+腆
+腈
+腊
+腋
+腌
+腍
+腐
+腑
+腒
+腓
+腔
+腕
+腘
+腙
+腚
+腠
+腥
+腧
+腩
+腬
+腭
+腮
+腯
+腰
+腱
+腲
+腴
+腷
+腹
+腺
+腻
+腼
+腽
+腾
+腿
+膀
+膂
+膄
+膇
+膈
+膊
+膋
+膍
+膏
+膑
+膘
+膚
+膛
+膜
+膝
+膣
+膦
+膨
+膪
+膫
+膰
+膳
+膴
+膶
+膺
+膻
+臀
+臁
+臂
+臃
+臄
+臆
+臊
+臋
+臌
+臎
+臑
+臓
+臙
+臛
+臜
+臝
+臞
+臡
+臣
+臧
+臨
+臩
+自
+臬
+臭
+臯
+臱
+臲
+至
+致
+臺
+臻
+臼
+臾
+臿
+舀
+舁
+舂
+舄
+舅
+舆
+與
+興
+舉
+舊
+舋
+舌
+舍
+舎
+舐
+舒
+舔
+舕
+舗
+舘
+舛
+舜
+舝
+舞
+舟
+舠
+舡
+舢
+舣
+舥
+舦
+舨
+航
+舫
+般
+舰
+舱
+舲
+舳
+舴
+舵
+舶
+舷
+舸
+船
+舺
+舻
+舼
+艄
+艅
+艇
+艋
+艎
+艏
+艐
+艑
+艓
+艔
+艘
+艚
+艛
+艟
+艨
+艮
+良
+艰
+色
+艳
+艴
+艹
+艺
+艻
+艽
+艾
+艿
+节
+芃
+芄
+芈
+芊
+芋
+芍
+芎
+芏
+芐
+芑
+芒
+芔
+芗
+芘
+芙
+芛
+芜
+芝
+芟
+芡
+芣
+芤
+芥
+芦
+芧
+芨
+芩
+芪
+芫
+芬
+芭
+芮
+芯
+芰
+花
+芳
+芴
+芶
+芷
+芸
+芹
+芺
+芼
+芽
+芾
+苁
+苄
+苅
+苇
+苈
+苊
+苋
+苌
+苍
+苎
+苏
+苑
+苒
+苓
+苔
+苕
+苖
+苗
+苘
+苙
+苛
+苜
+苝
+苞
+苟
+苠
+苡
+苣
+苤
+若
+苦
+苧
+苨
+苫
+苯
+英
+苳
+苴
+苶
+苷
+苹
+苺
+苻
+苾
+茀
+茁
+茂
+范
+茄
+茅
+茆
+茇
+茈
+茉
+茌
+茍
+茎
+茏
+茐
+茑
+茔
+茕
+茖
+茗
+茙
+茚
+茛
+茜
+茝
+茞
+茧
+茨
+茫
+茬
+茭
+茯
+茱
+茲
+茳
+茴
+茵
+茶
+茷
+茸
+茹
+茺
+茼
+荀
+荂
+荃
+荄
+荅
+荆
+荇
+荈
+草
+荊
+荍
+荎
+荏
+荐
+荑
+荒
+荓
+荔
+荘
+荙
+荚
+荛
+荜
+荞
+荟
+荠
+荡
+荣
+荤
+荥
+荦
+荧
+荨
+荩
+荪
+荫
+荬
+荭
+荮
+药
+荴
+荵
+荷
+荸
+荻
+荼
+荽
+莅
+莆
+莉
+莊
+莋
+莎
+莐
+莒
+莓
+莕
+莘
+莙
+莛
+莜
+莞
+莠
+莨
+莩
+莪
+莫
+莰
+莱
+莲
+莳
+莴
+莶
+获
+莸
+莹
+莺
+莼
+莽
+莿
+菀
+菁
+菂
+菅
+菇
+菈
+菉
+菊
+菌
+菍
+菏
+菑
+菓
+菔
+菖
+菘
+菙
+菜
+菝
+菟
+菠
+菡
+菢
+菥
+菧
+菩
+菪
+菫
+菭
+華
+菰
+菱
+菲
+菴
+菵
+菶
+菷
+菸
+菹
+菺
+菼
+菽
+菾
+萁
+萃
+萄
+萆
+萋
+萌
+萍
+萎
+萏
+萐
+萑
+萘
+萚
+萜
+萝
+萣
+萤
+营
+萦
+萧
+萨
+萩
+萬
+萮
+萯
+萱
+萶
+萷
+萸
+萹
+萼
+落
+葅
+葆
+葇
+葉
+葊
+葍
+葎
+葐
+葑
+葓
+葖
+著
+葙
+葚
+葛
+葜
+葡
+董
+葨
+葩
+葫
+葬
+葭
+葰
+葱
+葳
+葴
+葵
+葶
+葸
+葹
+葺
+葽
+蒀
+蒂
+蒈
+蒉
+蒊
+蒋
+蒌
+蒍
+蒎
+蒐
+蒔
+蒗
+蒙
+蒜
+蒟
+蒡
+蒢
+蒧
+蒨
+蒮
+蒯
+蒱
+蒲
+蒴
+蒶
+蒸
+蒹
+蒺
+蒻
+蒼
+蒽
+蒾
+蒿
+蓁
+蓂
+蓄
+蓇
+蓉
+蓊
+蓍
+蓏
+蓐
+蓑
+蓓
+蓖
+蓗
+蓝
+蓞
+蓟
+蓠
+蓢
+蓣
+蓥
+蓦
+蓧
+蓪
+蓫
+蓬
+蓮
+蓰
+蓱
+蓳
+蓴
+蓵
+蓷
+蓺
+蓼
+蓿
+蔀
+蔂
+蔃
+蔇
+蔊
+蔌
+蔑
+蔓
+蔕
+蔗
+蔘
+蔚
+蔞
+蔟
+蔡
+蔪
+蔫
+蔬
+蔯
+蔵
+蔷
+蔸
+蔹
+蔺
+蔻
+蔼
+蔽
+蕃
+蕅
+蕈
+蕉
+蕊
+蕑
+蕖
+蕗
+蕙
+蕝
+蕞
+蕟
+蕡
+蕣
+蕤
+蕨
+蕫
+蕰
+蕲
+蕳
+蕴
+蕹
+蕺
+蕻
+蕾
+薁
+薄
+薅
+薆
+薇
+薍
+薏
+薖
+薗
+薙
+薛
+薜
+薝
+薡
+薢
+薤
+薦
+薨
+薪
+薫
+薬
+薮
+薯
+薰
+薶
+薷
+薸
+薹
+薿
+藁
+藂
+藇
+藉
+藊
+藋
+藏
+藐
+藓
+藕
+藖
+藘
+藙
+藚
+藜
+藞
+藟
+藠
+藢
+藤
+藥
+藦
+藨
+藩
+藫
+藭
+藳
+藹
+藻
+藾
+藿
+蘂
+蘅
+蘋
+蘎
+蘑
+蘖
+蘗
+蘘
+蘙
+蘡
+蘤
+蘧
+蘩
+蘭
+蘵
+蘸
+蘼
+蘽
+虀
+虉
+虌
+虎
+虏
+虐
+虑
+虒
+虓
+虔
+處
+虖
+虙
+虚
+虜
+虞
+號
+虡
+虢
+虥
+虧
+虫
+虬
+虮
+虱
+虵
+虹
+虺
+虻
+虼
+虽
+虾
+虿
+蚀
+蚁
+蚂
+蚃
+蚊
+蚋
+蚌
+蚍
+蚏
+蚑
+蚓
+蚕
+蚖
+蚗
+蚘
+蚜
+蚝
+蚡
+蚢
+蚣
+蚤
+蚧
+蚨
+蚩
+蚪
+蚬
+蚯
+蚰
+蚱
+蚳
+蚴
+蚵
+蚶
+蚷
+蚹
+蚺
+蚻
+蚾
+蚿
+蛀
+蛁
+蛃
+蛄
+蛆
+蛇
+蛉
+蛊
+蛋
+蛎
+蛏
+蛐
+蛑
+蛔
+蛕
+蛙
+蛚
+蛛
+蛜
+蛞
+蛟
+蛣
+蛤
+蛦
+蛩
+蛪
+蛫
+蛭
+蛮
+蛰
+蛱
+蛲
+蛳
+蛴
+蛸
+蛹
+蛾
+蜀
+蜂
+蜃
+蜄
+蜇
+蜈
+蜉
+蜊
+蜋
+蜍
+蜎
+蜐
+蜑
+蜒
+蜓
+蜔
+蜕
+蜗
+蜘
+蜚
+蜜
+蜞
+蜡
+蜢
+蜣
+蜤
+蜥
+蜨
+蜩
+蜮
+蜰
+蜱
+蜴
+蜷
+蜺
+蜻
+蜼
+蜾
+蜿
+蝀
+蝃
+蝄
+蝇
+蝈
+蝉
+蝋
+蝌
+蝍
+蝎
+蝓
+蝗
+蝘
+蝙
+蝚
+蝛
+蝝
+蝠
+蝡
+蝣
+蝤
+蝥
+蝮
+蝯
+蝰
+蝱
+蝲
+蝴
+蝶
+蝻
+蝼
+蝽
+蝾
+螀
+螂
+螃
+螅
+螆
+螈
+螉
+螋
+螌
+融
+螓
+螕
+螗
+螘
+螟
+螣
+螨
+螩
+螫
+螬
+螭
+螮
+螯
+螳
+螵
+螹
+螺
+螽
+螾
+螿
+蟀
+蟅
+蟆
+蟉
+蟊
+蟋
+蟏
+蟑
+蟒
+蟚
+蟛
+蟜
+蟝
+蟟
+蟠
+蟢
+蟥
+蟦
+蟧
+蟩
+蟪
+蟫
+蟭
+蟮
+蟳
+蟹
+蟺
+蟾
+蠀
+蠂
+蠃
+蠄
+蠊
+蠋
+蠍
+蠓
+蠔
+蠕
+蠖
+蠗
+蠙
+蠛
+蠡
+蠢
+蠨
+蠪
+蠭
+蠲
+蠹
+蠻
+蠼
+血
+衄
+衅
+衉
+行
+衍
+衎
+衏
+衒
+衔
+衖
+街
+衙
+衠
+衡
+衢
+衣
+衤
+补
+表
+衩
+衫
+衬
+衮
+衰
+衱
+衲
+衵
+衷
+衹
+衽
+衾
+衿
+袁
+袂
+袄
+袅
+袆
+袈
+袋
+袍
+袑
+袒
+袓
+袖
+袗
+袚
+袛
+袜
+袞
+袢
+袤
+袨
+袩
+袪
+被
+袭
+袯
+袱
+袴
+袷
+袸
+袺
+袼
+袿
+裀
+裁
+裂
+裄
+装
+裆
+裇
+裈
+裋
+裌
+裎
+裒
+裓
+裔
+裕
+裖
+裘
+裙
+裛
+補
+裟
+裢
+裤
+裥
+裨
+裪
+裯
+裰
+裱
+裳
+裴
+裸
+裹
+裼
+製
+裾
+褂
+褆
+褊
+褎
+褐
+褒
+褓
+褔
+褕
+褙
+褚
+褛
+褡
+褣
+褥
+褦
+褧
+褪
+褫
+褭
+褯
+褰
+褱
+褴
+褵
+褶
+褷
+褾
+襀
+襁
+襄
+襆
+襋
+襌
+襕
+襚
+襛
+襜
+襞
+襟
+襦
+襪
+襫
+襭
+襮
+襰
+襵
+襶
+襻
+襼
+西
+要
+覃
+覆
+覇
+覈
+見
+覌
+規
+視
+覗
+覙
+覚
+覧
+親
+観
+觀
+见
+观
+规
+觅
+视
+觇
+览
+觉
+觊
+觋
+觌
+觎
+觏
+觐
+觑
+角
+觖
+觘
+觚
+觜
+觞
+解
+觥
+触
+觩
+觫
+觭
+觯
+觱
+觳
+觺
+觼
+觽
+觿
+言
+訂
+訇
+計
+訍
+討
+訏
+託
+記
+訚
+訜
+訦
+訧
+訪
+設
+許
+訳
+訴
+訹
+註
+証
+訾
+訿
+詀
+詈
+詝
+詞
+詟
+詠
+詢
+詧
+詰
+話
+詹
+誉
+誊
+誌
+認
+誓
+誕
+誠
+誨
+読
+誰
+課
+誷
+誾
+調
+諄
+請
+諐
+論
+諟
+諠
+諡
+諮
+諲
+諴
+諵
+諾
+謇
+謏
+謔
+謥
+謦
+謷
+譄
+譆
+證
+譊
+譓
+譖
+識
+譞
+警
+譩
+譬
+議
+譲
+譳
+譶
+譺
+譾
+變
+讎
+讓
+讙
+讟
+讠
+计
+订
+讣
+认
+讥
+讦
+讧
+讨
+让
+讪
+讫
+讬
+训
+议
+讯
+记
+讱
+讲
+讳
+讴
+讵
+讶
+讷
+许
+讹
+论
+讻
+讼
+讽
+设
+访
+诀
+证
+诂
+诃
+评
+诅
+识
+诇
+诈
+诉
+诊
+诋
+诌
+词
+诎
+诏
+诐
+译
+诒
+诓
+诔
+试
+诖
+诗
+诘
+诙
+诚
+诛
+诜
+话
+诞
+诟
+诠
+诡
+询
+诣
+诤
+该
+详
+诧
+诨
+诩
+诪
+诫
+诬
+语
+诮
+误
+诰
+诱
+诲
+诳
+说
+诵
+诶
+请
+诸
+诹
+诺
+读
+诼
+诽
+课
+诿
+谀
+谁
+谂
+调
+谄
+谅
+谆
+谇
+谈
+谊
+谋
+谌
+谍
+谎
+谏
+谐
+谑
+谒
+谓
+谔
+谕
+谖
+谗
+谘
+谙
+谚
+谛
+谜
+谝
+谞
+谟
+谠
+谡
+谢
+谣
+谤
+谥
+谦
+谧
+谨
+谩
+谪
+谫
+谬
+谭
+谮
+谯
+谰
+谱
+谲
+谳
+谴
+谵
+谶
+谷
+谹
+谺
+谼
+谽
+谾
+谿
+豀
+豁
+豄
+豆
+豇
+豉
+豊
+豌
+豏
+豐
+豕
+豗
+豚
+豜
+豝
+象
+豢
+豨
+豩
+豪
+豫
+豭
+豯
+豰
+豳
+豵
+豸
+豹
+豺
+豿
+貂
+貅
+貆
+貉
+貊
+貋
+貌
+貍
+貎
+貐
+貑
+貒
+貔
+貕
+貘
+貝
+貞
+負
+財
+貤
+貨
+責
+貮
+貳
+貴
+買
+貸
+費
+貼
+貿
+賀
+資
+賚
+賛
+賝
+賠
+賣
+賦
+賨
+賸
+購
+贁
+贇
+贈
+贔
+贝
+贞
+负
+贠
+贡
+财
+责
+贤
+败
+账
+货
+质
+贩
+贪
+贫
+贬
+购
+贮
+贯
+贰
+贱
+贲
+贳
+贴
+贵
+贶
+贷
+贸
+费
+贺
+贻
+贼
+贽
+贾
+贿
+赀
+赁
+赂
+赃
+资
+赅
+赆
+赇
+赈
+赉
+赊
+赋
+赌
+赍
+赎
+赏
+赐
+赑
+赒
+赓
+赔
+赖
+赗
+赘
+赙
+赚
+赛
+赜
+赝
+赞
+赟
+赠
+赡
+赢
+赣
+赤
+赥
+赦
+赧
+赩
+赪
+赫
+赭
+走
+赳
+赴
+赵
+赶
+起
+赺
+趁
+趄
+超
+越
+趋
+趍
+趐
+趑
+趔
+趖
+趗
+趟
+趠
+趢
+趣
+趨
+趫
+趮
+趯
+趱
+足
+趴
+趵
+趷
+趸
+趹
+趺
+趼
+趾
+趿
+跂
+跃
+跄
+跅
+跆
+跇
+跋
+跌
+跍
+跎
+跏
+跐
+跑
+跕
+跖
+跗
+跙
+跚
+跛
+跜
+距
+跟
+跡
+跣
+跤
+跧
+跨
+跩
+跪
+跫
+跬
+路
+跱
+跳
+践
+跶
+跷
+跸
+跹
+跺
+跻
+跼
+跽
+跿
+踄
+踅
+踆
+踇
+踉
+踊
+踌
+踎
+踏
+踔
+踕
+踖
+踘
+踝
+踞
+踟
+踠
+踡
+踢
+踣
+踦
+踧
+踩
+踪
+踬
+踭
+踮
+踯
+踰
+踱
+踵
+踶
+踸
+踹
+踺
+踼
+踽
+蹀
+蹁
+蹂
+蹄
+蹅
+蹇
+蹈
+蹉
+蹊
+蹋
+蹏
+蹐
+蹑
+蹒
+蹓
+蹔
+蹙
+蹚
+蹛
+蹜
+蹟
+蹠
+蹡
+蹢
+蹦
+蹩
+蹬
+蹭
+蹮
+蹯
+蹰
+蹱
+蹲
+蹳
+蹴
+蹶
+蹸
+蹻
+蹼
+蹿
+躁
+躃
+躄
+躅
+躇
+躏
+躐
+躔
+躜
+躝
+躞
+躠
+躧
+躨
+躩
+身
+躬
+躭
+躯
+躲
+躴
+躺
+躿
+軃
+車
+軍
+軏
+軜
+転
+軥
+軧
+軨
+軱
+軵
+軶
+軷
+軽
+軿
+輀
+輈
+輋
+輗
+輠
+輣
+輤
+輧
+輮
+輴
+輵
+輶
+輷
+輸
+輼
+轉
+轑
+轒
+轓
+轗
+轘
+轝
+轣
+轥
+车
+轧
+轨
+轩
+轪
+轫
+转
+轭
+轮
+软
+轰
+轱
+轲
+轳
+轴
+轵
+轶
+轸
+轹
+轺
+轻
+轼
+载
+轾
+轿
+辀
+辁
+辂
+较
+辄
+辅
+辆
+辇
+辈
+辉
+辊
+辋
+辍
+辎
+辏
+辐
+辑
+输
+辔
+辕
+辖
+辗
+辘
+辙
+辚
+辛
+辜
+辞
+辟
+辣
+辦
+辨
+辩
+辫
+辰
+辱
+辴
+辶
+辷
+边
+辺
+辻
+込
+辽
+达
+辿
+迁
+迂
+迄
+迅
+过
+迈
+迋
+迍
+迎
+运
+近
+迒
+迓
+返
+迕
+还
+这
+进
+远
+违
+连
+迟
+迢
+迤
+迥
+迦
+迨
+迩
+迪
+迫
+迭
+迮
+述
+迳
+迴
+迵
+迷
+迸
+迹
+迺
+追
+迾
+退
+送
+适
+逃
+逄
+逅
+逆
+逈
+选
+逊
+逋
+逍
+透
+逐
+逑
+递
+途
+逖
+逗
+這
+通
+逛
+逝
+逞
+速
+造
+逡
+逢
+連
+逤
+逥
+逦
+逭
+逮
+逯
+進
+逴
+逵
+逶
+逷
+逸
+逻
+逼
+逾
+逿
+遁
+遂
+遄
+遅
+遆
+遇
+遍
+遏
+遐
+遑
+遒
+道
+違
+遗
+遘
+遛
+遝
+遞
+遠
+遡
+遢
+遣
+遥
+遨
+適
+遫
+遭
+遮
+遯
+遱
+遴
+遵
+遶
+遹
+遺
+遽
+避
+邀
+邂
+邃
+還
+邅
+邈
+邊
+邋
+邍
+邑
+邓
+邕
+邗
+邘
+邙
+邛
+邝
+邞
+邠
+邡
+邢
+那
+邤
+邥
+邦
+邨
+邪
+邬
+邮
+邯
+邰
+邱
+邲
+邳
+邴
+邵
+邶
+邷
+邸
+邹
+邺
+邻
+邽
+邾
+郁
+郃
+郄
+郅
+郇
+郈
+郉
+郊
+郎
+郏
+郐
+郑
+郓
+郕
+郗
+郚
+郛
+郜
+郝
+郞
+郡
+郢
+郤
+郦
+郧
+部
+郩
+郪
+郫
+郭
+郯
+郴
+郷
+郸
+都
+郾
+郿
+鄀
+鄂
+鄄
+鄋
+鄌
+鄏
+鄑
+鄗
+鄘
+鄙
+鄚
+鄛
+鄜
+鄞
+鄠
+鄡
+鄢
+鄣
+鄤
+鄦
+鄨
+鄩
+鄪
+鄬
+鄮
+鄯
+鄰
+鄱
+鄳
+鄹
+鄼
+鄽
+酂
+酃
+酄
+酅
+酆
+酇
+酉
+酊
+酋
+酌
+配
+酎
+酏
+酐
+酑
+酒
+酔
+酕
+酖
+酗
+酘
+酚
+酝
+酞
+酡
+酢
+酣
+酤
+酥
+酦
+酧
+酩
+酪
+酬
+酭
+酮
+酯
+酰
+酱
+酲
+酴
+酵
+酶
+酷
+酸
+酹
+酺
+酽
+酾
+酿
+醁
+醃
+醄
+醅
+醆
+醇
+醉
+醋
+醌
+醍
+醎
+醐
+醑
+醒
+醓
+醘
+醚
+醛
+醜
+醡
+醢
+醤
+醥
+醦
+醨
+醪
+醫
+醭
+醮
+醯
+醲
+醳
+醴
+醵
+醸
+醹
+醺
+醻
+醽
+醾
+醿
+釂
+釆
+采
+釈
+釉
+释
+里
+重
+野
+量
+釐
+金
+釚
+釜
+釭
+釱
+釴
+鈇
+鈋
+鈌
+鈖
+鈚
+鈜
+鈟
+鈡
+鈣
+鈴
+鈵
+鉁
+鉄
+鉊
+鉌
+鉏
+鉝
+鉞
+鉟
+鉢
+鉤
+鉥
+鉧
+鉨
+鉱
+鉲
+鉴
+鉼
+鉽
+銀
+銁
+銍
+銙
+銛
+銭
+銮
+銶
+銺
+鋂
+鋆
+鋈
+鋋
+鋐
+鋕
+鋗
+鋘
+鋣
+鋪
+鋹
+錏
+錔
+錞
+錢
+錤
+錧
+錫
+錬
+錯
+錱
+錺
+錻
+錽
+錾
+鍑
+鍜
+鍟
+鍧
+鍪
+鍭
+鍮
+鍱
+鍼
+鎈
+鎌
+鎎
+鎏
+鎓
+鎕
+鎗
+鎛
+鎝
+鎞
+鎬
+鎶
+鎷
+鎹
+鏁
+鏊
+鏖
+鏣
+鏦
+鏸
+鐀
+鐈
+鐍
+鐖
+鐘
+鐻
+鑑
+鑙
+鑛
+鑨
+鑫
+鑯
+鑴
+钀
+钅
+钆
+钇
+针
+钉
+钊
+钌
+钍
+钎
+钏
+钐
+钑
+钒
+钓
+钕
+钖
+钗
+钘
+钙
+钚
+钛
+钜
+钝
+钞
+钟
+钠
+钡
+钢
+钣
+钤
+钥
+钦
+钧
+钨
+钩
+钪
+钫
+钬
+钭
+钮
+钯
+钰
+钱
+钲
+钳
+钴
+钵
+钸
+钹
+钺
+钻
+钼
+钽
+钾
+钿
+铀
+铁
+铂
+铃
+铄
+铅
+铆
+铇
+铈
+铉
+铊
+铋
+铌
+铍
+铎
+铏
+铐
+铑
+铒
+铓
+铔
+铕
+铖
+铗
+铘
+铙
+铚
+铛
+铜
+铝
+铟
+铠
+铡
+铢
+铣
+铤
+铥
+铦
+铧
+铨
+铩
+铪
+铫
+铬
+铭
+铮
+铯
+铰
+铱
+铲
+铳
+铴
+铵
+银
+铷
+铸
+铺
+铻
+铼
+铽
+链
+铿
+销
+锁
+锂
+锃
+锄
+锅
+锆
+锇
+锈
+锉
+锋
+锌
+锍
+锏
+锐
+锑
+锒
+锓
+锔
+锕
+锖
+锗
+锘
+错
+锚
+锛
+锜
+锝
+锞
+锟
+锠
+锡
+锢
+锣
+锤
+锥
+锦
+锧
+锨
+锪
+锭
+键
+锯
+锰
+锱
+锲
+锴
+锵
+锶
+锷
+锸
+锹
+锺
+锻
+锼
+锽
+锾
+镀
+镁
+镂
+镃
+镆
+镇
+镈
+镉
+镊
+镋
+镌
+镍
+镎
+镏
+镐
+镑
+镒
+镓
+镔
+镕
+镖
+镗
+镘
+镚
+镛
+镜
+镝
+镞
+镠
+镡
+镢
+镣
+镤
+镥
+镦
+镧
+镨
+镩
+镪
+镫
+镬
+镭
+镮
+镯
+镰
+镱
+镲
+镳
+镴
+镵
+镶
+長
+长
+門
+閁
+閈
+開
+閑
+閒
+間
+閛
+閜
+閞
+閟
+関
+閤
+閦
+閧
+閪
+閴
+闇
+闉
+闍
+闕
+闘
+闙
+闚
+關
+闟
+闢
+门
+闩
+闪
+闫
+闬
+闭
+问
+闯
+闰
+闱
+闲
+闳
+间
+闵
+闷
+闸
+闹
+闺
+闻
+闼
+闽
+闾
+闿
+阀
+阁
+阂
+阃
+阄
+阅
+阆
+阇
+阈
+阉
+阊
+阋
+阌
+阍
+阎
+阏
+阐
+阑
+阒
+阓
+阔
+阕
+阖
+阗
+阘
+阙
+阚
+阛
+阜
+阝
+队
+阠
+阡
+阨
+阪
+阬
+阮
+阯
+阱
+防
+阳
+阴
+阵
+阶
+阻
+阼
+阽
+阿
+陀
+陁
+陂
+附
+际
+陆
+陇
+陈
+陉
+陋
+陌
+降
+限
+陑
+陔
+陕
+陛
+陜
+陟
+陡
+院
+除
+陥
+陧
+陨
+险
+陪
+陬
+陭
+陲
+陴
+陵
+陶
+陷
+険
+陻
+陼
+陽
+陾
+隃
+隅
+隆
+隈
+隊
+隋
+隍
+階
+随
+隐
+隑
+隔
+隕
+隗
+隘
+隙
+際
+障
+隞
+隠
+隣
+隤
+隥
+隦
+隧
+隨
+隩
+險
+隮
+隰
+隳
+隶
+隷
+隹
+隻
+隼
+隽
+难
+雀
+雁
+雄
+雅
+集
+雇
+雉
+雊
+雌
+雍
+雎
+雏
+雑
+雒
+雕
+雘
+雙
+雜
+雝
+雠
+難
+雨
+雩
+雪
+雫
+雯
+雰
+雱
+雲
+雳
+零
+雷
+雹
+電
+雾
+需
+霁
+霂
+霃
+霄
+霅
+霆
+震
+霈
+霉
+霊
+霍
+霎
+霏
+霑
+霓
+霔
+霖
+霙
+霜
+霞
+霠
+霡
+霢
+霣
+霤
+霨
+霪
+霭
+霮
+霰
+露
+霳
+霸
+霹
+霾
+霿
+靂
+靃
+青
+靓
+靖
+靗
+静
+靛
+非
+靠
+靡
+面
+靥
+靦
+靧
+革
+靫
+靮
+靰
+靳
+靴
+靶
+靷
+靸
+靺
+靼
+靿
+鞀
+鞃
+鞄
+鞅
+鞉
+鞋
+鞍
+鞑
+鞒
+鞓
+鞔
+鞕
+鞗
+鞘
+鞙
+鞚
+鞞
+鞟
+鞠
+鞣
+鞨
+鞫
+鞬
+鞭
+鞮
+鞯
+鞲
+鞳
+鞴
+鞵
+鞶
+鞸
+鞹
+鞺
+鞾
+鞿
+韂
+韅
+韍
+韎
+韐
+韓
+韔
+韘
+韝
+韠
+韡
+韦
+韧
+韨
+韩
+韪
+韫
+韬
+韭
+韮
+音
+韵
+韶
+韹
+韻
+頂
+項
+須
+頉
+頋
+頍
+預
+頔
+頚
+頞
+頠
+頣
+頩
+頫
+頬
+頭
+頯
+頳
+頵
+頼
+顇
+顉
+額
+顏
+顒
+顕
+顗
+顜
+類
+顡
+顦
+页
+顶
+顷
+顸
+项
+顺
+须
+顼
+顽
+顾
+顿
+颀
+颁
+颂
+颃
+预
+颅
+领
+颇
+颈
+颉
+颊
+颋
+颌
+颍
+颎
+颏
+颐
+频
+颒
+颓
+颔
+颕
+颖
+颗
+题
+颙
+颚
+颛
+颜
+额
+颞
+颟
+颠
+颡
+颢
+颣
+颤
+颥
+颦
+颧
+風
+颾
+颿
+飁
+飉
+飋
+飍
+风
+飏
+飐
+飑
+飒
+飓
+飔
+飕
+飖
+飗
+飘
+飙
+飚
+飛
+飞
+食
+飡
+飣
+飧
+飨
+飯
+飰
+飱
+飶
+飽
+餂
+養
+餍
+餐
+餔
+餗
+餘
+餠
+餤
+餧
+館
+餬
+餮
+餲
+餴
+餸
+餽
+饁
+饇
+饉
+饎
+饐
+饑
+饔
+饕
+饗
+饘
+饙
+饛
+饟
+饣
+饤
+饥
+饦
+饧
+饨
+饩
+饪
+饫
+饬
+饭
+饮
+饯
+饰
+饱
+饲
+饴
+饵
+饶
+饷
+饸
+饹
+饺
+饼
+饽
+饾
+饿
+馀
+馁
+馃
+馄
+馅
+馆
+馇
+馈
+馉
+馊
+馋
+馌
+馍
+馎
+馏
+馐
+馑
+馒
+馓
+馔
+馕
+首
+馗
+馘
+香
+馛
+馞
+馠
+馡
+馤
+馥
+馧
+馨
+馬
+馯
+馹
+馺
+馽
+駃
+駄
+駅
+駆
+駉
+駊
+駓
+駖
+駜
+駠
+駪
+駬
+駮
+駰
+駱
+駷
+駸
+駹
+駻
+駼
+駽
+駾
+駿
+騀
+騂
+騃
+騄
+騅
+騊
+騋
+騏
+騑
+騒
+験
+騕
+騞
+騠
+騡
+騢
+騣
+騧
+騪
+騰
+騱
+騳
+騵
+騹
+騺
+驈
+驎
+驒
+驔
+驖
+驚
+驛
+驩
+马
+驭
+驮
+驯
+驰
+驱
+驲
+驳
+驴
+驵
+驶
+驷
+驸
+驹
+驺
+驻
+驼
+驽
+驾
+驿
+骀
+骁
+骂
+骃
+骄
+骅
+骆
+骇
+骈
+骉
+骊
+骋
+验
+骍
+骎
+骏
+骐
+骑
+骒
+骓
+骕
+骖
+骗
+骘
+骙
+骚
+骛
+骜
+骝
+骞
+骟
+骠
+骡
+骢
+骣
+骤
+骥
+骦
+骧
+骨
+骫
+骭
+骰
+骱
+骶
+骷
+骸
+骹
+骺
+骼
+髀
+髁
+髂
+髃
+髅
+髆
+髇
+髋
+髌
+髎
+髐
+髑
+髓
+體
+高
+髙
+髟
+髠
+髡
+髢
+髤
+髦
+髧
+髪
+髫
+髭
+髮
+髯
+髲
+髳
+髵
+髹
+髻
+髽
+髾
+鬃
+鬅
+鬇
+鬈
+鬋
+鬐
+鬑
+鬒
+鬓
+鬖
+鬘
+鬙
+鬝
+鬟
+鬡
+鬣
+鬬
+鬯
+鬱
+鬲
+鬵
+鬷
+鬺
+鬻
+鬼
+鬽
+魀
+魁
+魂
+魃
+魄
+魅
+魆
+魇
+魈
+魉
+魋
+魍
+魏
+魑
+魔
+魖
+魗
+魟
+魠
+魣
+魭
+魮
+魯
+魶
+魼
+魾
+魿
+鮀
+鮄
+鮅
+鮆
+鮇
+鮈
+鮍
+鮖
+鮗
+鮟
+鮠
+鮡
+鮣
+鮧
+鮨
+鮮
+鮰
+鮸
+鮹
+鮻
+鮼
+鯄
+鯈
+鯏
+鯙
+鯥
+鯮
+鯵
+鯶
+鯺
+鯻
+鯾
+鰅
+鰆
+鰋
+鰔
+鰕
+鰞
+鰟
+鰤
+鰧
+鰬
+鰶
+鰽
+鱄
+鱇
+鱊
+鱋
+鱍
+鱎
+鱏
+鱗
+鱚
+鱠
+鱥
+鱮
+鱲
+鱳
+鱵
+鱻
+鱼
+鱾
+鱿
+鲀
+鲁
+鲂
+鲃
+鲅
+鲆
+鲇
+鲈
+鲉
+鲊
+鲋
+鲌
+鲍
+鲎
+鲏
+鲐
+鲑
+鲒
+鲓
+鲔
+鲕
+鲖
+鲘
+鲙
+鲚
+鲛
+鲜
+鲞
+鲟
+鲠
+鲡
+鲢
+鲣
+鲤
+鲥
+鲦
+鲧
+鲨
+鲩
+鲪
+鲫
+鲬
+鲭
+鲮
+鲯
+鲰
+鲱
+鲲
+鲳
+鲴
+鲵
+鲶
+鲷
+鲸
+鲹
+鲺
+鲻
+鲼
+鲽
+鲾
+鲿
+鳀
+鳁
+鳂
+鳃
+鳄
+鳅
+鳆
+鳇
+鳈
+鳉
+鳊
+鳋
+鳌
+鳍
+鳎
+鳏
+鳐
+鳑
+鳒
+鳓
+鳔
+鳕
+鳖
+鳗
+鳙
+鳚
+鳜
+鳝
+鳞
+鳟
+鳠
+鳡
+鳢
+鳣
+鳤
+鳥
+鳦
+鳧
+鳩
+鳲
+鳳
+鳴
+鳶
+鳷
+鳸
+鳺
+鳼
+鳽
+鴂
+鴃
+鴇
+鴈
+鴋
+鴐
+鴒
+鴜
+鴥
+鴳
+鴹
+鴽
+鵉
+鵊
+鵕
+鵙
+鵝
+鵞
+鵟
+鵩
+鵰
+鵱
+鵻
+鶀
+鶂
+鶃
+鶋
+鶏
+鶒
+鶖
+鶗
+鶡
+鶢
+鶤
+鶬
+鶱
+鶵
+鶹
+鶺
+鷃
+鷇
+鷉
+鷊
+鷕
+鷛
+鷞
+鷟
+鷠
+鷢
+鷣
+鷤
+鷩
+鷫
+鷮
+鷾
+鷿
+鸂
+鸃
+鸄
+鸊
+鸐
+鸑
+鸒
+鸓
+鸘
+鸜
+鸝
+鸟
+鸠
+鸡
+鸢
+鸣
+鸤
+鸥
+鸦
+鸧
+鸨
+鸩
+鸪
+鸫
+鸬
+鸭
+鸮
+鸯
+鸰
+鸱
+鸲
+鸳
+鸴
+鸵
+鸶
+鸷
+鸸
+鸹
+鸺
+鸻
+鸽
+鸾
+鸿
+鹀
+鹁
+鹂
+鹃
+鹄
+鹅
+鹆
+鹇
+鹈
+鹉
+鹊
+鹋
+鹌
+鹍
+鹎
+鹏
+鹐
+鹑
+鹒
+鹓
+鹔
+鹕
+鹖
+鹗
+鹘
+鹙
+鹚
+鹛
+鹜
+鹝
+鹞
+鹟
+鹠
+鹡
+鹢
+鹣
+鹤
+鹥
+鹦
+鹧
+鹨
+鹩
+鹪
+鹫
+鹬
+鹭
+鹮
+鹯
+鹰
+鹱
+鹲
+鹳
+鹴
+鹾
+鹿
+麀
+麂
+麃
+麇
+麈
+麋
+麌
+麏
+麐
+麑
+麒
+麓
+麕
+麖
+麗
+麚
+麛
+麝
+麞
+麟
+麤
+麦
+麧
+麨
+麯
+麰
+麴
+麸
+麹
+麺
+麻
+麼
+麽
+麾
+麿
+黁
+黃
+黄
+黈
+黉
+黍
+黎
+黏
+黐
+黑
+黒
+黓
+黔
+黕
+黖
+默
+黙
+黛
+黜
+黝
+點
+黟
+黠
+黡
+黢
+黤
+黥
+黦
+黧
+黨
+黩
+黪
+黫
+黬
+黮
+黯
+黳
+黸
+黻
+黼
+黾
+鼆
+鼋
+鼍
+鼎
+鼐
+鼒
+鼓
+鼗
+鼙
+鼛
+鼟
+鼠
+鼢
+鼩
+鼪
+鼫
+鼬
+鼮
+鼯
+鼷
+鼹
+鼺
+鼻
+鼽
+鼾
+鼿
+齁
+齃
+齄
+齅
+齊
+齎
+齐
+齑
+齚
+齢
+齧
+齨
+齮
+齰
+齾
+齿
+龀
+龁
+龂
+龃
+龄
+龅
+龆
+龇
+龈
+龉
+龊
+龋
+龌
+龍
+龏
+龑
+龙
+龚
+龛
+龜
+龟
+龠
+거
+나
+났
+다
+딜
+또
+리
+맥
+버
+요
+워
+타
+
+
+凉
+︰
+﹐
+﹒
+﹖
+！
+＆
+（
+）
+，
+－
+．
+／
+２
+：
+；
+＜
+＞
+？
+＠
+＿
+｀
+｜
+～
+￥
+𡒄
+𨱏
\ No newline at end of file
diff --git a/mmocr-dev-1.x/dicts/english_digits_symbols.txt b/mmocr-dev-1.x/dicts/english_digits_symbols.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a945ae9c526e4faa68852eb3fb47d078a2f3f6ce
--- /dev/null
+++ b/mmocr-dev-1.x/dicts/english_digits_symbols.txt
@@ -0,0 +1,90 @@
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
+!
+"
+#
+$
+%
+&
+'
+(
+)
+*
++
+,
+-
+.
+/
+:
+;
+<
+=
+>
+?
+@
+[
+\
+]
+_
+`
+~
\ No newline at end of file
diff --git a/mmocr-dev-1.x/dicts/english_digits_symbols_space.txt b/mmocr-dev-1.x/dicts/english_digits_symbols_space.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5bd66a185eeeb64e39b78f33ba96c8120ca28112
--- /dev/null
+++ b/mmocr-dev-1.x/dicts/english_digits_symbols_space.txt
@@ -0,0 +1,91 @@
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
+!
+"
+#
+$
+%
+&
+'
+(
+)
+*
++
+,
+-
+.
+/
+:
+;
+<
+=
+>
+?
+@
+[
+\
+]
+_
+`
+~
+ 
\ No newline at end of file
diff --git a/mmocr-dev-1.x/dicts/korean_english_digits_symbols.txt b/mmocr-dev-1.x/dicts/korean_english_digits_symbols.txt
new file mode 100644
index 0000000000000000000000000000000000000000..764080d5486ebd77cb7b5db26ac82022eb84cc4e
--- /dev/null
+++ b/mmocr-dev-1.x/dicts/korean_english_digits_symbols.txt
@@ -0,0 +1,1803 @@
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+!
+"
+#
+$
+%
+&
+\
+'
+(
+)
+*
++
+,
+-
+.
+/
+:
+;
+<
+=
+>
+?
+@
+[
+]
+^
+_
+`
+{
+|
+}
+~
+ 
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
+ㆍ
+가
+각
+간
+갇
+갈
+갉
+감
+갑
+값
+갓
+갔
+강
+갖
+같
+갚
+갛
+개
+객
+갤
+갬
+갭
+갯
+갱
+갸
+걀
+거
+걱
+건
+걷
+걸
+검
+겁
+것
+겅
+겉
+게
+겐
+겔
+겟
+겠
+겨
+격
+겪
+견
+결
+겸
+겹
+겼
+경
+곁
+계
+고
+곡
+곤
+곧
+골
+곰
+곱
+곳
+공
+곶
+과
+곽
+관
+괄
+괌
+광
+괘
+괜
+괭
+괴
+괼
+굉
+교
+굘
+구
+국
+군
+굳
+굴
+굵
+굶
+굼
+굽
+굿
+궁
+궂
+궈
+권
+궐
+궤
+귀
+귄
+귈
+규
+균
+귤
+그
+극
+근
+글
+긁
+금
+급
+긋
+긍
+기
+긴
+길
+김
+깁
+깃
+깅
+깊
+까
+깍
+깎
+깐
+깔
+깜
+깝
+깡
+깥
+깨
+깬
+깻
+깽
+꺠
+꺵
+꺼
+꺽
+꺾
+껄
+껌
+껍
+껏
+껐
+껑
+께
+껴
+꼈
+꼬
+꼭
+꼴
+꼼
+꼽
+꽁
+꽂
+꽃
+꽈
+꽉
+꽐
+꽝
+꽤
+꽥
+꾀
+꾸
+꾹
+꾼
+꿀
+꿇
+꿈
+꿉
+꿍
+꿔
+꿨
+꿩
+꿰
+뀌
+뀐
+뀔
+끄
+끈
+끊
+끌
+끓
+끔
+끗
+끙
+끝
+끼
+낀
+낄
+낌
+나
+낙
+낚
+난
+날
+낡
+낢
+남
+납
+낫
+났
+낭
+낮
+낯
+낱
+낳
+내
+낵
+낸
+낼
+냄
+냅
+냇
+냈
+냉
+냐
+냑
+냠
+냥
+너
+넉
+넌
+널
+넓
+넘
+넙
+넛
+넝
+넣
+네
+넥
+넨
+넬
+넴
+넵
+넷
+녀
+녁
+년
+념
+녔
+녕
+녘
+녜
+녠
+노
+녹
+논
+놀
+놈
+놉
+놋
+농
+높
+놓
+놔
+놨
+뇌
+뇨
+뇰
+뇸
+뇽
+누
+눅
+눈
+눌
+눔
+눕
+눙
+눠
+뉘
+뉜
+뉴
+뉼
+늄
+느
+늑
+는
+늘
+늙
+늠
+능
+늦
+늪
+늬
+니
+닉
+닌
+닐
+님
+닙
+닛
+닝
+다
+닥
+닦
+단
+닫
+달
+닭
+닮
+닳
+담
+답
+닷
+당
+닻
+닿
+대
+댁
+댄
+댈
+댐
+댑
+댓
+댕
+더
+덕
+덖
+던
+덜
+덟
+덤
+덥
+덧
+덩
+덫
+덮
+데
+덱
+덴
+델
+뎀
+뎅
+뎌
+뎬
+도
+독
+돈
+돋
+돌
+돔
+돕
+돗
+동
+돛
+돼
+됐
+되
+된
+될
+됨
+됩
+두
+둑
+둔
+둘
+둠
+둡
+둣
+둥
+둬
+뒀
+뒤
+뒷
+뒹
+듀
+듈
+듐
+드
+득
+든
+듣
+들
+듦
+듬
+듭
+듯
+등
+듸
+딍
+디
+딕
+딘
+딛
+딜
+딝
+딤
+딥
+딧
+딩
+딪
+따
+딱
+딴
+딸
+땀
+땃
+땄
+땅
+때
+땐
+땜
+땡
+떠
+떡
+떤
+떨
+떴
+떻
+떼
+뗴
+또
+똑
+똔
+똘
+똣
+똥
+뚜
+뚝
+뚫
+뚱
+뛰
+뛴
+뛸
+뜀
+뜨
+뜩
+뜬
+뜯
+뜰
+뜸
+뜻
+띄
+띈
+띠
+띤
+띵
+라
+락
+란
+랄
+람
+랍
+랏
+랐
+랑
+랗
+래
+랙
+랜
+랠
+램
+랩
+랫
+랬
+랭
+랲
+랴
+략
+랸
+량
+러
+럭
+런
+럴
+럼
+럽
+럿
+렀
+렁
+렇
+레
+렉
+렌
+렐
+렘
+렙
+렛
+렝
+려
+력
+련
+렬
+렴
+렵
+렷
+렸
+령
+례
+롄
+로
+록
+론
+롤
+롬
+롭
+롯
+롱
+롸
+뢰
+룀
+료
+룡
+루
+룩
+룬
+룰
+룸
+룹
+룻
+룽
+뤄
+뤘
+뤼
+뤽
+륀
+륄
+류
+륙
+륜
+률
+륨
+륫
+륭
+르
+륵
+른
+를
+름
+릅
+릇
+릉
+릎
+리
+릭
+린
+릳
+릴
+림
+립
+릿
+링
+마
+막
+만
+많
+맏
+말
+맑
+맘
+맙
+맛
+망
+맞
+맡
+맣
+매
+맥
+맨
+맬
+맴
+맵
+맷
+맹
+맺
+먀
+머
+먹
+먼
+멀
+멈
+멋
+멍
+메
+멕
+멘
+멜
+멤
+멥
+멧
+멩
+며
+멱
+면
+멸
+몄
+명
+몇
+모
+목
+몫
+몬
+몰
+몸
+몹
+못
+몽
+뫼
+묀
+묘
+무
+묵
+묶
+문
+묻
+물
+뭄
+뭇
+뭉
+뭐
+뭔
+뭘
+뮈
+뮌
+뮐
+뮤
+뮬
+므
+믄
+믈
+믐
+미
+믹
+민
+믿
+밀
+밈
+밋
+밌
+밍
+및
+밑
+바
+박
+밖
+반
+받
+발
+밝
+밟
+밤
+밥
+밧
+방
+밭
+배
+백
+밴
+밸
+뱀
+뱃
+뱅
+뱉
+뱌
+버
+벅
+번
+벌
+범
+법
+벗
+벙
+벚
+베
+벡
+벤
+벧
+벨
+벰
+벳
+벵
+벼
+벽
+변
+별
+볍
+병
+볕
+보
+복
+볶
+본
+볼
+봄
+봅
+봇
+봉
+봐
+봤
+뵈
+뵙
+뵤
+부
+북
+분
+붇
+불
+붉
+붐
+붓
+붕
+붙
+뷔
+뷘
+뷰
+브
+븐
+블
+븟
+븨
+비
+빅
+빈
+빌
+빔
+빕
+빗
+빙
+빚
+빛
+빠
+빡
+빤
+빨
+빵
+빻
+빼
+빽
+뺀
+뺄
+뺌
+뺏
+뺑
+뺨
+뺴
+뺵
+뻐
+뻑
+뻔
+뻗
+뻘
+뻤
+뻥
+뻬
+뼈
+뼛
+뽀
+뽁
+뽈
+뽐
+뽑
+뽕
+뾰
+뿅
+뿌
+뿍
+뿐
+뿔
+뿜
+쁘
+쁜
+쁠
+쁨
+삐
+삔
+삘
+사
+삭
+산
+살
+삶
+삼
+삽
+삿
+샀
+상
+새
+색
+샌
+샐
+샘
+샛
+생
+샤
+샥
+샨
+샬
+샴
+샵
+샷
+샹
+샾
+섀
+서
+석
+섞
+선
+섣
+설
+섬
+섭
+섯
+섰
+성
+세
+섹
+센
+셀
+셈
+셉
+셋
+셍
+셔
+션
+셜
+셤
+셧
+셨
+셰
+셴
+셸
+소
+속
+손
+솔
+솜
+솝
+솟
+송
+솥
+솽
+쇄
+쇠
+쇳
+쇼
+숀
+숄
+숍
+숏
+숑
+숖
+수
+숙
+순
+숟
+술
+숨
+숫
+숭
+숮
+숯
+숱
+숲
+숴
+쉐
+쉘
+쉬
+쉴
+쉼
+쉽
+쉿
+슈
+슐
+슘
+슛
+슝
+스
+슨
+슬
+슭
+슴
+습
+슷
+승
+시
+식
+신
+싣
+실
+싫
+심
+십
+싯
+싰
+싱
+싶
+싸
+싹
+싼
+쌀
+쌈
+쌉
+쌌
+쌍
+쌓
+쌘
+쌤
+쌩
+썜
+써
+썩
+썬
+썰
+썸
+썹
+썼
+썽
+쎄
+쎈
+쎌
+쎴
+쏘
+쏙
+쏜
+쏟
+쏠
+쏩
+쏭
+쏴
+쐈
+쐐
+쑈
+쑝
+쑤
+쑥
+쑨
+쑬
+쑹
+쒰
+쓔
+쓰
+쓱
+쓴
+쓸
+씀
+씅
+씌
+씨
+씩
+씬
+씰
+씷
+씹
+씻
+씽
+아
+악
+안
+앉
+않
+알
+앓
+암
+압
+앗
+았
+앙
+앞
+애
+액
+앤
+앨
+앰
+앱
+앳
+앴
+앵
+야
+약
+얀
+얄
+얇
+얌
+얏
+양
+얕
+얗
+얘
+어
+억
+언
+얹
+얻
+얼
+얽
+엄
+업
+없
+엇
+었
+엉
+엌
+엎
+에
+엑
+엔
+엘
+엠
+엡
+엣
+엥
+여
+역
+엮
+연
+열
+엷
+염
+엽
+엿
+였
+영
+옅
+옆
+예
+옌
+옐
+옙
+옛
+오
+옥
+온
+올
+옭
+옮
+옳
+옴
+옵
+옷
+옹
+옻
+와
+왁
+완
+왈
+왑
+왓
+왔
+왕
+왜
+외
+왼
+요
+욕
+욘
+욜
+욤
+용
+우
+욱
+운
+울
+움
+웁
+웃
+웅
+워
+웍
+원
+월
+웜
+웠
+웨
+웩
+웬
+웰
+웸
+웹
+위
+윅
+윈
+윌
+윔
+윗
+윙
+유
+육
+윤
+율
+윰
+윳
+융
+으
+윽
+은
+을
+음
+읍
+응
+읗
+의
+이
+익
+인
+일
+읽
+잃
+임
+입
+잇
+있
+잉
+잊
+잌
+잎
+자
+작
+잔
+잖
+잘
+잠
+잡
+잣
+장
+잦
+재
+잭
+잼
+잿
+쟁
+쟈
+쟉
+쟌
+쟝
+저
+적
+전
+절
+젊
+젋
+점
+접
+젓
+정
+젖
+제
+젝
+젠
+젤
+젬
+젭
+젯
+젱
+져
+젼
+졌
+조
+족
+존
+졸
+좀
+좁
+종
+좇
+좋
+좌
+좡
+죄
+죠
+죤
+주
+죽
+준
+줄
+줌
+줍
+줏
+중
+줘
+줬
+쥐
+쥔
+쥘
+쥬
+쥰
+쥴
+즈
+즉
+즌
+즐
+즘
+즙
+증
+지
+직
+진
+짇
+질
+짊
+짐
+집
+짓
+징
+짖
+짙
+짚
+짜
+짝
+짠
+짤
+짧
+짬
+짭
+짱
+째
+쨈
+쨌
+쨍
+쨰
+쩌
+쩍
+쩐
+쩔
+쩜
+쩡
+쩰
+쪄
+쪼
+쪽
+쫀
+쫄
+쫑
+쫓
+쬐
+쬘
+쭈
+쭉
+쭝
+쭤
+쮸
+쯔
+쯤
+찌
+찍
+찐
+찔
+찜
+찝
+찡
+찢
+찧
+차
+착
+찬
+찮
+찰
+참
+찹
+찻
+창
+찾
+챂
+채
+책
+챈
+챌
+챔
+챗
+챙
+챠
+챤
+처
+척
+천
+철
+첨
+첩
+첫
+청
+체
+첵
+첸
+첼
+쳇
+쳐
+쳤
+초
+촉
+촌
+촐
+촘
+촛
+총
+촨
+촬
+최
+쵸
+쵹
+추
+축
+춘
+출
+춤
+춥
+춧
+충
+춰
+췄
+췌
+취
+츄
+츠
+측
+츨
+츰
+츳
+층
+치
+칙
+친
+칠
+칡
+침
+칩
+칫
+칭
+칲
+카
+칵
+칸
+칼
+캄
+캅
+캇
+캉
+캐
+캔
+캘
+캠
+캡
+캣
+캥
+캬
+커
+컥
+컨
+컫
+컬
+컴
+컵
+컷
+컸
+컹
+케
+켁
+켄
+켈
+켐
+켓
+켜
+켰
+코
+콕
+콘
+콜
+콤
+콥
+콧
+콩
+콰
+콴
+콸
+쾅
+쾌
+쾨
+쾰
+쿄
+쿠
+쿡
+쿤
+쿨
+쿰
+쿵
+쿼
+퀀
+퀄
+퀘
+퀴
+퀵
+퀸
+퀼
+큐
+큔
+큘
+큠
+크
+큰
+클
+큼
+키
+킥
+킨
+킬
+킴
+킵
+킷
+킹
+타
+탁
+탄
+탈
+탉
+탐
+탑
+탓
+탔
+탕
+태
+택
+탠
+탤
+탬
+탭
+탱
+탸
+터
+턱
+턴
+털
+텀
+텁
+텃
+텅
+테
+텍
+텐
+텔
+템
+텝
+텟
+텡
+텨
+톈
+토
+톡
+톤
+톨
+톰
+톱
+톳
+통
+톺
+퇘
+퇴
+투
+툭
+툰
+툴
+툼
+퉁
+튀
+튕
+튜
+튠
+튬
+트
+특
+튼
+튿
+틀
+틈
+틔
+티
+틱
+틴
+틸
+팀
+팁
+팃
+팅
+파
+팍
+팎
+판
+팔
+팜
+팝
+팟
+팡
+팥
+패
+팩
+팬
+팰
+팸
+팹
+팻
+팽
+퍼
+퍽
+펀
+펄
+펌
+펍
+펑
+펖
+페
+펙
+펜
+펠
+펨
+펩
+펫
+펭
+펴
+편
+펼
+폄
+폈
+평
+폐
+포
+폭
+폰
+폴
+폼
+퐁
+푀
+표
+푸
+푹
+푼
+풀
+품
+풋
+풍
+퓌
+퓨
+퓰
+퓸
+프
+픈
+플
+픔
+피
+픽
+핀
+필
+핌
+핍
+핏
+핑
+하
+학
+한
+할
+핥
+함
+합
+핫
+항
+해
+핵
+핸
+핼
+햄
+햅
+햇
+했
+행
+햐
+향
+허
+헉
+헌
+헐
+험
+헛
+헝
+헤
+헥
+헨
+헬
+헴
+헵
+헸
+헹
+혀
+혁
+현
+혈
+혐
+협
+혓
+혔
+형
+혜
+호
+혹
+혼
+홀
+홈
+홉
+홋
+홍
+화
+확
+환
+활
+황
+홰
+횃
+회
+획
+횐
+횟
+횡
+효
+후
+훅
+훈
+훌
+훑
+훔
+훗
+훙
+훠
+훤
+훨
+훼
+휀
+휘
+휙
+휜
+휠
+휩
+휴
+흄
+흉
+흐
+흑
+흔
+흘
+흙
+흠
+흡
+흥
+흩
+희
+흰
+히
+힉
+힌
+힐
+힘
+힙
+곹
+뗌
+쏨
+똠
+챱
+쬬
+햬
+촤
+튤
+갠
+먄
+뀰
+걍
+삥
+뽄
+귓
+끽
+촙
+쿱
+슉
+켙
+좔
+뽂
+삑
+릐
+웡
+쨔
+잽
+볽
+떢
+꼰
+볏
+잰
+뷜
+셑
+쉡
+쏸
+썅
+쌥
+쎕
+뚤
+뚠
+뼘
+쎼
+긱
+삣
+쉰
+텬
+쌰
+뤠
+뤨
+땋
+뷸
+뗄
+됀
+뚬
+쉑
+쩨
+빳
+꺳
+쌔
+떙
+깟
+뒥
+솬
+숩
\ No newline at end of file
diff --git a/mmocr-dev-1.x/dicts/lower_english_digits.txt b/mmocr-dev-1.x/dicts/lower_english_digits.txt
new file mode 100644
index 0000000000000000000000000000000000000000..474060366f8a2a00c108d5c743821c0a61867cd5
--- /dev/null
+++ b/mmocr-dev-1.x/dicts/lower_english_digits.txt
@@ -0,0 +1,36 @@
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
\ No newline at end of file
diff --git a/mmocr-dev-1.x/dicts/lower_english_digits_space.txt b/mmocr-dev-1.x/dicts/lower_english_digits_space.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a80a4a20b6f47e0338d5cccb9b71504eb38f62bb
--- /dev/null
+++ b/mmocr-dev-1.x/dicts/lower_english_digits_space.txt
@@ -0,0 +1,37 @@
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+ 
\ No newline at end of file
diff --git a/mmocr-dev-1.x/dicts/sdmgr_dict.txt b/mmocr-dev-1.x/dicts/sdmgr_dict.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b68274119a13962dc989c7330edd371d5c43ced4
--- /dev/null
+++ b/mmocr-dev-1.x/dicts/sdmgr_dict.txt
@@ -0,0 +1,91 @@
+/
+\
+.
+$
+£
+€
+¥
+:
+-
+,
+*
+#
+(
+)
+%
+@
+!
+'
+&
+=
+>
++
+"
+×
+?
+<
+[
+]
+_
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
\ No newline at end of file
diff --git a/mmocr-dev-1.x/docker/Dockerfile b/mmocr-dev-1.x/docker/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..ba1f95416d2fb1278284c80e5a07a9dc3ebcf2f4
--- /dev/null
+++ b/mmocr-dev-1.x/docker/Dockerfile
@@ -0,0 +1,24 @@
+ARG PYTORCH="1.9.0"
+ARG CUDA="11.1"
+ARG CUDNN="8"
+
+FROM pytorch/pytorch:${PYTORCH}-cuda${CUDA}-cudnn${CUDNN}-devel
+
+# To fix GPG key error when running apt-get update
+RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
+RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub
+
+RUN apt-get update && apt-get install -y git ninja-build libglib2.0-0 libsm6 libxrender-dev libxext6 libgl1-mesa-glx \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN pip install -U openmim
+RUN mim install mmengine
+RUN mim install 'mmcv>=2.0.0rc1'
+RUN pip install 'mmdet>=3.0.0rc0'
+RUN git clone https://github.com/open-mmlab/mmocr.git /mmocr
+WORKDIR /mmocr
+ENV FORCE_CUDA="1"
+RUN pip install -r requirements.txt
+RUN pip install --no-cache-dir -e .
+RUN pip install -r requirements/albu.txt
diff --git a/mmocr-dev-1.x/docker/serve/Dockerfile b/mmocr-dev-1.x/docker/serve/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..617112708f4b2336b0ceac9cd579b34cc6353d13
--- /dev/null
+++ b/mmocr-dev-1.x/docker/serve/Dockerfile
@@ -0,0 +1,54 @@
+ARG PYTORCH="1.6.0"
+ARG CUDA="10.1"
+ARG CUDNN="7"
+FROM pytorch/pytorch:${PYTORCH}-cuda${CUDA}-cudnn${CUDNN}-devel
+RUN rm /etc/apt/sources.list.d/cuda.list
+RUN rm /etc/apt/sources.list.d/nvidia-ml.list
+RUN apt-key del 7fa2af80
+RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
+RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub
+
+ARG MMCV="1.3.17"
+ARG MMDET="2.25.0"
+
+ENV PYTHONUNBUFFERED TRUE
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
+    ca-certificates \
+    g++ \
+    openjdk-11-jre-headless \
+    # MMDet Requirements
+    ffmpeg libsm6 libxext6 git ninja-build libglib2.0-0 libsm6 libxrender-dev libxext6 \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV PATH="/opt/conda/bin:$PATH"
+RUN export FORCE_CUDA=1
+
+# TORCHSEVER
+RUN pip install torchserve torch-model-archiver
+
+# MMLAB
+ARG PYTORCH
+ARG CUDA
+RUN ["/bin/bash", "-c", "pip install mmcv-full==${MMCV} -f https://download.openmmlab.com/mmcv/dist/cu${CUDA//./}/torch${PYTORCH}/index.html"]
+RUN pip install mmdet==${MMDET}
+RUN pip install mmocr
+RUN useradd -m model-server \
+    && mkdir -p /home/model-server/tmp
+
+COPY entrypoint.sh /usr/local/bin/entrypoint.sh
+
+RUN chmod +x /usr/local/bin/entrypoint.sh \
+    && chown -R model-server /home/model-server
+
+COPY config.properties /home/model-server/config.properties
+RUN mkdir /home/model-server/model-store && chown -R model-server /home/model-server/model-store
+
+EXPOSE 8080 8081 8082
+
+USER model-server
+WORKDIR /home/model-server
+ENV TEMP=/home/model-server/tmp
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+CMD ["serve"]
diff --git a/mmocr-dev-1.x/docker/serve/config.properties b/mmocr-dev-1.x/docker/serve/config.properties
new file mode 100644
index 0000000000000000000000000000000000000000..efb9c47e40ab550bac765611e6c6c6f2a7152f11
--- /dev/null
+++ b/mmocr-dev-1.x/docker/serve/config.properties
@@ -0,0 +1,5 @@
+inference_address=http://0.0.0.0:8080
+management_address=http://0.0.0.0:8081
+metrics_address=http://0.0.0.0:8082
+model_store=/home/model-server/model-store
+load_models=all
diff --git a/mmocr-dev-1.x/docker/serve/entrypoint.sh b/mmocr-dev-1.x/docker/serve/entrypoint.sh
new file mode 100644
index 0000000000000000000000000000000000000000..41ba00b048aed84b45c5a8015a016ff148e97d86
--- /dev/null
+++ b/mmocr-dev-1.x/docker/serve/entrypoint.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+set -e
+
+if [[ "$1" = "serve" ]]; then
+    shift 1
+    torchserve --start --ts-config /home/model-server/config.properties
+else
+    eval "$@"
+fi
+
+# prevent docker exit
+tail -f /dev/null
diff --git a/mmocr-dev-1.x/docs/en/Makefile b/mmocr-dev-1.x/docs/en/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..d4bb2cbb9eddb1bb1b4f366623044af8e4830919
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/Makefile
@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/mmocr-dev-1.x/docs/en/_static/css/readthedocs.css b/mmocr-dev-1.x/docs/en/_static/css/readthedocs.css
new file mode 100644
index 0000000000000000000000000000000000000000..c4736f9dc728b2b0a49fd8e10d759c5d58e506d1
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/_static/css/readthedocs.css
@@ -0,0 +1,6 @@
+.header-logo {
+    background-image: url("../images/mmocr.png");
+    background-size: 110px 40px;
+    height: 40px;
+    width: 110px;
+}
diff --git a/mmocr-dev-1.x/docs/en/_static/images/mmocr.png b/mmocr-dev-1.x/docs/en/_static/images/mmocr.png
new file mode 100755
index 0000000000000000000000000000000000000000..363e34989e376b23b78ca4c31933542f15ec78ee
Binary files /dev/null and b/mmocr-dev-1.x/docs/en/_static/images/mmocr.png differ
diff --git a/mmocr-dev-1.x/docs/en/_static/js/collapsed.js b/mmocr-dev-1.x/docs/en/_static/js/collapsed.js
new file mode 100644
index 0000000000000000000000000000000000000000..3124c144dfdfc01a9510cfe39b1c8ff2240644ce
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/_static/js/collapsed.js
@@ -0,0 +1 @@
+var collapsedSections = ['Migration Guides', 'API Reference']
diff --git a/mmocr-dev-1.x/docs/en/_static/js/table.js b/mmocr-dev-1.x/docs/en/_static/js/table.js
new file mode 100644
index 0000000000000000000000000000000000000000..8dacf477f33e81bba3a0c0edc11b135f648b1f0a
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/_static/js/table.js
@@ -0,0 +1,31 @@
+$(document).ready(function () {
+    table = $('.model-summary').DataTable({
+        "stateSave": false,
+        "lengthChange": false,
+        "pageLength": 10,
+        "order": [],
+        "scrollX": true,
+        "columnDefs": [
+            { "type": "summary", targets: '_all' },
+        ]
+    });
+    // Override the default sorting for the summary columns, which
+    // never takes the "-" character into account.
+    jQuery.extend(jQuery.fn.dataTableExt.oSort, {
+        "summary-asc": function (str1, str2) {
+            if (str1 == "<p>-</p>")
+                return 1;
+            if (str2 == "<p>-</p>")
+                return -1;
+            return ((str1 < str2) ? -1 : ((str1 > str2) ? 1 : 0));
+        },
+
+        "summary-desc": function (str1, str2) {
+            if (str1 == "<p>-</p>")
+                return 1;
+            if (str2 == "<p>-</p>")
+                return -1;
+            return ((str1 < str2) ? 1 : ((str1 > str2) ? -1 : 0));
+        }
+    });
+})
diff --git a/mmocr-dev-1.x/docs/en/_templates/classtemplate.rst b/mmocr-dev-1.x/docs/en/_templates/classtemplate.rst
new file mode 100644
index 0000000000000000000000000000000000000000..4f74842394ec9807fb1ae2d8f05a8a57e9a2e24c
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/_templates/classtemplate.rst
@@ -0,0 +1,14 @@
+.. role:: hidden
+    :class: hidden-section
+.. currentmodule:: {{ module }}
+
+
+{{ name | underline}}
+
+.. autoclass:: {{ name }}
+    :members:
+
+
+..
+  autogenerated from source/_templates/classtemplate.rst
+  note it does not have :inherited-members:
diff --git a/mmocr-dev-1.x/docs/en/api/apis.rst b/mmocr-dev-1.x/docs/en/api/apis.rst
new file mode 100644
index 0000000000000000000000000000000000000000..fcca6a24ea6147a55010e4f3d6a5141a36d2d295
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/apis.rst
@@ -0,0 +1,26 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.apis
+===================================
+
+.. contents:: mmocr.apis
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.apis.inferencers
+
+Inferencers
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MMOCRInferencer
+   TextDetInferencer
+   TextRecInferencer
+   TextSpotInferencer
+   KIEInferencer
diff --git a/mmocr-dev-1.x/docs/en/api/datasets.rst b/mmocr-dev-1.x/docs/en/api/datasets.rst
new file mode 100644
index 0000000000000000000000000000000000000000..8b63debf9a88a68fe97930066c2e1b8090859854
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/datasets.rst
@@ -0,0 +1,57 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.datasets
+===================================
+
+.. contents:: mmocr.datasets
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.datasets.samplers
+
+Samplers
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BatchAugSampler
+
+.. currentmodule:: mmocr.datasets
+
+Datasets
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   OCRDataset
+   WildReceiptDataset
+
+Compatible Datasets
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   IcdarDataset
+   RecogLMDBDataset
+   RecogTextDataset
+
+Dataset Wrapper
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ConcatDataset
diff --git a/mmocr-dev-1.x/docs/en/api/engine.rst b/mmocr-dev-1.x/docs/en/api/engine.rst
new file mode 100644
index 0000000000000000000000000000000000000000..ecc8fec238acd8a4be2f2453502aac2b8e3cb7ff
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/engine.rst
@@ -0,0 +1,22 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.engine
+===================================
+
+.. contents:: mmocr.engine
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.engine.hooks
+
+Hooks
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   VisualizationHook
diff --git a/mmocr-dev-1.x/docs/en/api/evaluation.rst b/mmocr-dev-1.x/docs/en/api/evaluation.rst
new file mode 100644
index 0000000000000000000000000000000000000000..d92d51a4ffbdeb6c7b13559e6a927682c1f246ef
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/evaluation.rst
@@ -0,0 +1,57 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.evaluation
+===================================
+
+.. contents:: mmocr.evaluation
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.evaluation.evaluator
+
+Evaluator
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MultiDatasetsEvaluator
+
+.. currentmodule:: mmocr.evaluation.metrics
+
+TextDet Metric
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   HmeanIOUMetric
+
+TextRecog Metric
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   WordMetric
+   CharMetric
+   OneMinusNEDMetric
+
+
+KIE Metric
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   F1Metric
diff --git a/mmocr-dev-1.x/docs/en/api/models.rst b/mmocr-dev-1.x/docs/en/api/models.rst
new file mode 100644
index 0000000000000000000000000000000000000000..9ac53908debea467cc0a23ff6e6d71b670e2534e
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/models.rst
@@ -0,0 +1,423 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.models
+===================================
+
+- :mod:`~mmocr.models.common`
+
+  - :ref:`commombackbones`
+  - :ref:`commomdictionary`
+  - :ref:`commomlayers`
+  - :ref:`commomlosses`
+  - :ref:`commommodules`
+
+- :mod:`~mmocr.models.textdet`
+
+  - :ref:`detdetectors`
+  - :ref:`detdatapreprocessors`
+  - :ref:`detnecks`
+  - :ref:`detheads`
+  - :ref:`detmodulelosses`
+  - :ref:`detpostprocessors`
+
+- :mod:`~mmocr.models.textrecog`
+
+  - :ref:`recrecognizers`
+  - :ref:`recdatapreprocessors`
+  - :ref:`recpreprocessors`
+  - :ref:`recencoders`
+  - :ref:`recdecoders`
+  - :ref:`recmodulelosses`
+  - :ref:`recpostprocessors`
+  - :ref:`reclayers`
+
+- :mod:`~mmocr.models.kie`
+
+  - :ref:`kieextractors`
+  - :ref:`kieheads`
+  - :ref:`kiemodulelosses`
+  - :ref:`kiepostprocessors`
+
+
+.. module:: mmocr.models.common
+models.common
+---------------------------------------------
+.. currentmodule:: mmocr.models.common
+
+.. _commombackbones:
+
+BackBones
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   UNet
+
+.. _commomdictionary:
+
+Dictionary
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   Dictionary
+
+.. _commomlosses:
+
+Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MaskedBalancedBCEWithLogitsLoss
+   MaskedDiceLoss
+   MaskedSmoothL1Loss
+   MaskedSquareDiceLoss
+   MaskedBCEWithLogitsLoss
+   SmoothL1Loss
+   CrossEntropyLoss
+   MaskedBalancedBCELoss
+   MaskedBCELoss
+
+.. _commomlayers:
+
+Layers
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TFEncoderLayer
+   TFDecoderLayer
+
+.. _commommodules:
+
+Modules
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ScaledDotProductAttention
+   MultiHeadAttention
+   PositionwiseFeedForward
+   PositionalEncoding
+
+
+.. module:: mmocr.models.textdet
+models.textdet
+---------------------------------------------
+.. currentmodule:: mmocr.models.textdet
+
+.. _detdetectors:
+
+Detectors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SingleStageTextDetector
+   DBNet
+   PANet
+   PSENet
+   TextSnake
+   FCENet
+   DRRG
+   MMDetWrapper
+
+
+.. _detdatapreprocessors:
+
+Data Preprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextDetDataPreprocessor
+
+
+.. _detnecks:
+
+Necks
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   FPEM_FFM
+   FPNF
+   FPNC
+   FPN_UNet
+
+
+.. _detheads:
+
+Heads
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextDetHead
+   PSEHead
+   PANHead
+   DBHead
+   FCEHead
+   TextSnakeHead
+   DRRGHead
+
+
+.. _detmodulelosses:
+
+Module Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SegBasedModuleLoss
+   PANModuleLoss
+   PSEModuleLoss
+   DBModuleLoss
+   TextSnakeModuleLoss
+   FCEModuleLoss
+   DRRGModuleLoss
+
+
+.. _detpostprocessors:
+
+Postprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextDetPostProcessor
+   PSEPostprocessor
+   PANPostprocessor
+   DBPostprocessor
+   DRRGPostprocessor
+   FCEPostprocessor
+   TextSnakePostprocessor
+
+
+
+.. module:: mmocr.models.textrecog
+models.textrecog
+---------------------------------------------
+.. currentmodule:: mmocr.models.textrecog
+
+.. _recrecognizers:
+
+
+Recognizers
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseRecognizer
+   EncoderDecoderRecognizer
+   CRNN
+   SARNet
+   NRTR
+   RobustScanner
+   SATRN
+   ABINet
+   MASTER
+   ASTER
+
+.. _recdatapreprocessors:
+
+Data Preprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextRecogDataPreprocessor
+
+.. _recpreprocessors:
+
+Preprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   STN
+
+.. _recbackbones:
+
+BackBones
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ResNet31OCR
+   MiniVGG
+   NRTRModalityTransform
+   ShallowCNN
+   ResNetABI
+   ResNet
+   MobileNetV2
+
+
+.. _recencoders:
+
+Encoders
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SAREncoder
+   NRTREncoder
+   BaseEncoder
+   ChannelReductionEncoder
+   SATRNEncoder
+   ABIEncoder
+   ASTEREncoder
+
+.. _recdecoders:
+
+Decoders
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseDecoder
+   ABILanguageDecoder
+   ABIVisionDecoder
+   ABIFuser
+   CRNNDecoder
+   ParallelSARDecoder
+   SequentialSARDecoder
+   ParallelSARDecoderWithBS
+   NRTRDecoder
+   SequenceAttentionDecoder
+   PositionAttentionDecoder
+   RobustScannerFuser
+   MasterDecoder
+   ASTERDecoder
+
+.. _recmodulelosses:
+
+Module Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextRecogModuleLoss
+   CEModuleLoss
+   CTCModuleLoss
+   ABIModuleLoss
+
+.. _recpostprocessors:
+
+Postprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextRecogPostprocessor
+   AttentionPostprocessor
+   CTCPostProcessor
+
+.. _reclayers:
+
+Layers
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BidirectionalLSTM
+   Adaptive2DPositionalEncoding
+   BasicBlock
+   Bottleneck
+   RobustScannerFusionLayer
+   DotProductAttentionLayer
+   PositionAwareLayer
+   SATRNEncoderLayer
+
+
+.. module:: mmocr.models.kie
+models.kie
+---------------------------------------------
+.. currentmodule:: mmocr.models.kie
+
+.. _kieextractors:
+
+Extractors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGR
+
+.. _kieheads:
+
+Heads
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGRHead
+
+.. _kiemodulelosses:
+
+Module Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGRModuleLoss
+
+.. _kiepostprocessors:
+
+Postprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGRPostProcessor
diff --git a/mmocr-dev-1.x/docs/en/api/structures.rst b/mmocr-dev-1.x/docs/en/api/structures.rst
new file mode 100644
index 0000000000000000000000000000000000000000..920c4d440d65861b380427c8d077936b49515d00
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/structures.rst
@@ -0,0 +1,15 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.structures
+===================================
+
+.. currentmodule:: mmocr.structures
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextDetDataSample
+   TextRecogDataSample
+   KIEDataSample
diff --git a/mmocr-dev-1.x/docs/en/api/transforms.rst b/mmocr-dev-1.x/docs/en/api/transforms.rst
new file mode 100644
index 0000000000000000000000000000000000000000..08b7e854ee19c15100a9d4779862e7523f74cb03
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/transforms.rst
@@ -0,0 +1,111 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.datasets
+===================================
+
+.. contents:: mmocr.datasets.transforms
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.datasets.transforms
+
+Loading
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   LoadImageFromFile
+   LoadOCRAnnotations
+   LoadKIEAnnotations
+   InferencerLoader
+
+
+TextDet Transforms
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BoundedScaleAspectJitter
+   RandomFlip
+   SourceImagePad
+   ShortScaleAspectJitter
+   TextDetRandomCrop
+   TextDetRandomCropFlip
+
+
+TextRecog Transforms
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextRecogGeneralAug
+   CropHeight
+   ImageContentJitter
+   ReversePixels
+   PyramidRescale
+   PadToWidth
+   RescaleToHeight
+
+
+OCR Transforms
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   RandomCrop
+   RandomRotate
+   Resize
+   FixInvalidPolygon
+   RemoveIgnored
+
+
+
+Formatting
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   PackTextDetInputs
+   PackTextRecogInputs
+   PackKIEInputs
+
+
+Transform Wrapper
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ImgAugWrapper
+   TorchVisionWrapper
+
+
+Adapter
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MMDet2MMOCR
+   MMOCR2MMDet
diff --git a/mmocr-dev-1.x/docs/en/api/utils.rst b/mmocr-dev-1.x/docs/en/api/utils.rst
new file mode 100644
index 0000000000000000000000000000000000000000..06cc5c64383e094d5ea9d5edbc955a4f4acbfc4d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/utils.rst
@@ -0,0 +1,101 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.utils
+===================================
+
+.. contents:: mmocr.utils
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.utils
+
+Image Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   crop_img
+   warp_img
+
+
+Box Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   bbox2poly
+   bbox_center_distance
+   bbox_diag_distance
+   bezier2polygon
+   is_on_same_line
+   rescale_bboxes
+
+   stitch_boxes_into_lines
+
+
+Point Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   point_distance
+   points_center
+
+Polygon Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   boundary_iou
+   crop_polygon
+   is_poly_inside_rect
+   offset_polygon
+   poly2bbox
+   poly2shapely
+   poly_intersection
+   poly_iou
+   poly_make_valid
+   poly_union
+   polys2shapely
+   rescale_polygon
+   rescale_polygons
+   shapely2poly
+   sort_points
+   sort_vertex
+   sort_vertex8
+
+
+Mask Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   fill_hole
+
+
+Misc Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   equal_len
+   is_2dlist
+   is_3dlist
+   is_none_or_type
+   is_type_list
+
+
+Setup Env
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   register_all_modules
diff --git a/mmocr-dev-1.x/docs/en/api/visualization.rst b/mmocr-dev-1.x/docs/en/api/visualization.rst
new file mode 100644
index 0000000000000000000000000000000000000000..e48469226cd9dac973ea7d5739af78bbe98e1992
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/api/visualization.rst
@@ -0,0 +1,18 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.visualization
+===================================
+
+.. currentmodule:: mmocr.visualization
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseLocalVisualizer
+   TextDetLocalVisualizer
+   TextRecogLocalVisualizer
+   TextSpottingLocalVisualizer
+   KIELocalVisualizer
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/convention.md b/mmocr-dev-1.x/docs/en/basic_concepts/convention.md
new file mode 100644
index 0000000000000000000000000000000000000000..4964cacbced155f72e8a6c114dbb1d21255ccd1d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/convention.md
@@ -0,0 +1,3 @@
+# Convention\[coming soon\]
+
+Coming Soon!
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/data_flow.md b/mmocr-dev-1.x/docs/en/basic_concepts/data_flow.md
new file mode 100644
index 0000000000000000000000000000000000000000..11957fa1fe3bb256db6d9a0ee553476d9bbb21b6
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/data_flow.md
@@ -0,0 +1,3 @@
+# Data Flow\[coming soon\]
+
+Coming Soon!
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/datasets.md b/mmocr-dev-1.x/docs/en/basic_concepts/datasets.md
new file mode 100644
index 0000000000000000000000000000000000000000..7e121d2b36ce00360b62f97f574d07101c50a83e
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/datasets.md
@@ -0,0 +1,491 @@
+# Dataset
+
+## Overview
+
+In MMOCR, all the datasets are processed via different Dataset classes based on [mmengine.BaseDataset](mmengine.dataset.BaseDataset). Dataset classes are responsible for loading the data and performing initial parsing, then fed to [data pipeline](./transforms.md) for data preprocessing, augmentation, formatting, etc.
+
+<div align="center">
+
+![Flowchart](https://user-images.githubusercontent.com/22607038/225302639-c65888c5-cda0-4df7-ac79-1348fe16d44a.png)
+
+</div>
+
+In this tutorial, we will introduce some common interfaces of the Dataset class, and the usage of Dataset implementations in MMOCR as well as the annotation types they support.
+
+```{tip}
+Dataset class supports some advanced features, such as lazy initialization and data serialization, and takes advantage of various dataset wrappers to perform data concatenation, repeating, and category balancing. These content will not be covered in this tutorial, but you can read {external+mmengine:doc}`MMEngine: BaseDataset <advanced_tutorials/basedataset>` for more details.
+```
+
+## Common Interfaces
+
+Now, let's look at a concrete example and learn some typical interfaces of a Dataset class.
+`OCRDataset` is a widely used Dataset implementation in MMOCR, and is suggested as a default Dataset type in MMOCR as its associated annotation format is flexible enough to support *all* the OCR tasks ([more info](#ocrdataset)). Now we will instantiate an `OCRDataset` object wherein the toy dataset in `tests/data/det_toy_dataset` will be loaded.
+
+```python
+from mmocr.datasets import OCRDataset
+from mmengine.registry import init_default_scope
+init_default_scope('mmocr')
+
+train_pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+dataset = OCRDataset(
+    data_root='tests/data/det_toy_dataset',
+    ann_file='textdet_test.json',
+    test_mode=False,
+    pipeline=train_pipeline)
+
+```
+
+Let's peek the size of this dataset:
+
+```python
+>>> print(len(dataset))
+
+10
+```
+
+Typically, a Dataset class loads and stores two types of information: (1) **meta information**: Some meta descriptors of the dataset's property, such as available object categories in this dataset. (2) **annotation**: The path to images, and their labels. We can access the meta information in `dataset.metainfo`:
+
+```python
+>>> from pprint import pprint
+>>> pprint(dataset.metainfo)
+
+{'category': [{'id': 0, 'name': 'text'}],
+ 'dataset_type': 'TextDetDataset',
+ 'task_name': 'textdet'}
+```
+
+As for the annotations, we can access them via `dataset.get_data_info(idx)`, which returns a dictionary containing the information of the `idx`-th sample in the dataset that is initially parsed, but not yet processed by [data pipeline](./transforms.md).
+
+```python
+>>> from pprint import pprint
+>>> pprint(dataset.get_data_info(0))
+
+{'height': 720,
+ 'img_path': 'tests/data/det_toy_dataset/test/img_10.jpg',
+ 'instances': [{'bbox': [260.0, 138.0, 284.0, 158.0],
+                'bbox_label': 0,
+                'ignore': True,
+                'polygon': [261, 138, 284, 140, 279, 158, 260, 158]},
+                ...,
+               {'bbox': [1011.0, 157.0, 1079.0, 173.0],
+                'bbox_label': 0,
+                'ignore': True,
+                'polygon': [1011, 157, 1079, 160, 1076, 173, 1011, 170]}],
+ 'sample_idx': 0,
+ 'seg_map': 'test/gt_img_10.txt',
+ 'width': 1280}
+
+```
+
+On the other hand, we can get the sample fully processed by data pipeline via `dataset[idx]` or `dataset.__getitem__(idx)`, which is directly feedable to models and perform a full train/test cycle. It has two fields:
+
+- `inputs`: The image after data augmentation;
+- `data_samples`: The [DataSample](./structures.md) that contains the augmented annotations, and meta information appended by some data transforms to keep track of some key properties of this sample.
+
+```python
+>>> pprint(dataset[0])
+
+{'data_samples': <TextDetDataSample(
+
+    META INFORMATION
+    ori_shape: (720, 1280)
+    img_path: 'tests/data/det_toy_dataset/imgs/test/img_10.jpg'
+    img_shape: (640, 640)
+
+    DATA FIELDS
+    gt_instances: <InstanceData(
+
+            META INFORMATION
+
+            DATA FIELDS
+            labels: tensor([0, 0, 0])
+            polygons: [array([207.33984 , 104.65409 , 208.34634 ,  84.528305, 231.49594 ,
+                        86.54088 , 226.46341 , 104.65409 , 207.33984 , 104.65409 ],
+                      dtype=float32), array([237.53496 , 103.6478  , 235.52196 ,  84.528305, 365.36096 ,
+                        86.54088 , 364.35446 , 107.67296 , 237.53496 , 103.6478  ],
+                      dtype=float32), array([105.68293, 166.03773, 105.68293, 151.94969, 177.14471, 150.94339,
+                       178.15121, 165.03145, 105.68293, 166.03773], dtype=float32)]
+            ignored: tensor([ True, False,  True])
+            bboxes: tensor([[207.3398,  84.5283, 231.4959, 104.6541],
+                        [235.5220,  84.5283, 365.3610, 107.6730],
+                        [105.6829, 150.9434, 178.1512, 166.0377]])
+        ) at 0x7f7359f04fa0>
+) at 0x7f735a0508e0>,
+ 'inputs': tensor([[[129, 111, 131,  ...,   0,   0,   0], ...
+                  [ 19,  18,  15,  ...,   0,   0,   0]]], dtype=torch.uint8)}
+```
+
+## Dataset Classes and Annotation Formats
+
+Each Dataset implementation can only load datasets in a specific annotation format. Here lists all supported Dataset classes and their compatible annotation formats, as well as an example config that showcases how to use them in practice.
+
+```{note}
+If you are not familiar with the config system, you may find [Dataset Configuration](../user_guides/dataset_prepare.md#dataset-configuration) helpful.
+```
+
+### OCRDataset
+
+Usually, there are many different types of annotations in OCR datasets, and the formats often vary between different subtasks, such as text detection and text recognition. These differences can result in the need for different data loading code when using different datasets, increasing the learning and maintenance costs for users.
+
+In MMOCR, we propose a unified dataset format that can adapt to all three subtasks of OCR: text detection, text recognition, and text spotting. This design maximizes the uniformity of the dataset, allows for the reuse of data annotations across different tasks, and makes dataset management more convenient. Considering that popular dataset formats are still inconsistent, MMOCR provides [Dataset Preparer](../user_guides/data_prepare/dataset_preparer.md) to help users convert their datasets to MMOCR format. We also strongly encourage researchers to develop their own datasets based on this data format.
+
+#### Annotation Format
+
+This annotation file is a `.json` file that stores a `dict`, containing both `metainfo` and `data_list`, where the former includes basic information about the dataset and the latter consists of the label item of each target instance. Here presents an extensive list of all the fields in the annotation file, but some fields are used in a subset of tasks and can be ignored in other tasks.
+
+```python
+{
+    "metainfo":
+    {
+      "dataset_type": "TextDetDataset",  # Options: TextDetDataset/TextRecogDataset/TextSpotterDataset
+      "task_name": "textdet",  #  Options: textdet/textspotter/textrecog
+      "category": [{"id": 0, "name": "text"}]  # Used in textdet/textspotter
+    },
+    "data_list":
+    [
+      {
+        "img_path": "test_img.jpg",
+        "height": 604,
+        "width": 640,
+        "instances":  # multiple instances in one image
+        [
+          {
+            "bbox": [0, 0, 10, 20],  # in textdet/textspotter, [x1, y1, x2, y2].
+            "bbox_label": 0,  # The object category, always 0 (text) in MMOCR
+            "polygon": [0, 0, 0, 10, 10, 20, 20, 0], # in textdet/textspotter. [x1, y1, x2, y2, ....]
+            "text": "mmocr",  # in textspotter/textrecog
+            "ignore": False # in textspotter/textdet. Whether to ignore this sample during training
+          },
+          #...
+        ],
+      }
+      #... multiple images
+    ]
+}
+```
+
+#### Example Config
+
+Here is a part of config example where we make `train_dataloader` use `OCRDataset` to load the ICDAR2015 dataset for a text detection model. Keep in mind that `OCRDataset` can load any OCR datasets prepared by Dataset Preparer regardless of its task. That is, you can use it for text recognition and text spotting, but you still have to modify the transform types in `pipeline` according to the needs of different tasks.
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+icdar2015_textdet_train = dict(
+    type='OCRDataset',
+    data_root='data/icdar2015',
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=pipeline)
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+```
+
+### RecogLMDBDataset
+
+Reading images or labels from files can be slow when data are excessive, e.g. on a scale of millions. Besides, in academia, most of the scene text recognition datasets are stored in lmdb format, including images and labels. ([Example](https://github.com/clovaai/deep-text-recognition-benchmark))
+
+To get closer to the mainstream practice and enhance the data storage efficiency, MMOCR supports loading images and labels from lmdb datasets via `RecogLMDBDataset`.
+
+#### Annotation Format
+
+MMOCR requires the following keys for LMDB datasets:
+
+- `num_samples`: The parameter describing the data volume of the dataset.
+- The keys of images and labels are in the
+  format of `image-000000001` and `label-000000001`, respectively. The index starts from 1.
+
+MMOCR has a toy LMDB dataset in `tests/data/rec_toy_dataset/imgs.lmdb`.
+You can get a sense of the format with the following code snippet.
+
+```python
+>>> import lmdb
+>>>
+>>> env = lmdb.open('tests/data/rec_toy_dataset/imgs.lmdb')
+>>> txn = env.begin()
+>>> for k, v in txn.cursor():
+>>>     print(k, v)
+
+b'image-000000001' b'\xff...'
+b'image-000000002' b'\xff...'
+b'image-000000003' b'\xff...'
+b'image-000000004' b'\xff...'
+b'image-000000005' b'\xff...'
+b'image-000000006' b'\xff...'
+b'image-000000007' b'\xff...'
+b'image-000000008' b'\xff...'
+b'image-000000009' b'\xff...'
+b'image-000000010' b'\xff...'
+b'label-000000001' b'GRAND'
+b'label-000000002' b'HOTEL'
+b'label-000000003' b'HOTEL'
+b'label-000000004' b'PACIFIC'
+b'label-000000005' b'03/09/2009'
+b'label-000000006' b'ANING'
+b'label-000000007' b'Virgin'
+b'label-000000008' b'america'
+b'label-000000009' b'ATTACK'
+b'label-000000010' b'DAVIDSON'
+b'num-samples' b'10'
+```
+
+#### Example Config
+
+Here is a part of config example where we make `train_dataloader` use `RecogLMDBDataset` to load the toy dataset. Since `RecogLMDBDataset` loads images as numpy arrays, don't forget to use `LoadImageFromNDArray` instead of `LoadImageFromFile` in the pipeline for successful loading.
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromNDArray'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_text=True,
+    ),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+toy_textrecog_train = dict(
+    type='RecogLMDBDataset',
+    data_root='tests/data/rec_toy_dataset/',
+    ann_file='imgs.lmdb',
+    pipeline=pipeline)
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=toy_textrecog_train)
+```
+
+### RecogTextDataset
+
+Prior to MMOCR 1.0, MMOCR 0.x takes text files as input for text recognition. These formats has been deprecated in MMOCR 1.0, and this class could be removed anytime in the future. [More info](../migration/dataset.md)
+
+#### Annotation Format
+
+Text files can either be in `txt` format or `jsonl` format. The simple `.txt` annotations separate image name and word annotation by a blank space, which cannot handle the case when spaces are included in a text instance.
+
+```text
+img1.jpg OpenMMLab
+img2.jpg MMOCR
+```
+
+The JSON Line format uses a dictionary-like structure to represent the annotations, where the keys `filename` and `text` store the image name and word label, respectively.
+
+```json
+{"filename": "img1.jpg", "text": "OpenMMLab"}
+{"filename": "img2.jpg", "text": "MMOCR"}
+```
+
+#### Example Config
+
+Here is a part of config example where we use `RecogTextDataset` to load the old txt labels in training, and the old jsonl labels in testing.
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+ # loading 0.x txt format annos
+ txt_dataset = dict(
+     type='RecogTextDataset',
+     data_root=data_root,
+     ann_file='old_label.txt',
+     data_prefix=dict(img_path='imgs'),
+     parser_cfg=dict(
+         type='LineStrParser',
+         keys=['filename', 'text'],
+         keys_idx=[0, 1]),
+     pipeline=pipeline)
+
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=txt_dataset)
+
+ # loading 0.x json line format annos
+ jsonl_dataset = dict(
+     type='RecogTextDataset',
+     data_root=data_root,
+     ann_file='old_label.jsonl',
+     data_prefix=dict(img_path='imgs'),
+     parser_cfg=dict(
+         type='LineJsonParser',
+         keys=['filename', 'text'],
+     pipeline=pipeline))
+
+test_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=jsonl_dataset)
+```
+
+### IcdarDataset
+
+Prior to MMOCR 1.0, MMOCR 0.x takes COCO-like format annotations as input for text detection. These formats has been deprecated in MMOCR 1.0, and this class could be removed anytime in the future. [More info](../migration/dataset.md)
+
+#### Annotation Format
+
+```json
+{
+  "images": [
+    {
+      "id": 1,
+      "width": 800,
+      "height": 600,
+      "file_name": "test.jpg"
+    }
+  ],
+  "annotations": [
+    {
+      "id": 1,
+      "image_id": 1,
+      "category_id": 1,
+      "bbox": [0,0,10,10],
+      "segmentation": [
+          [0,0,10,0,10,10,0,10]
+      ],
+      "area": 100,
+      "iscrowd": 0
+    }
+  ]
+}
+```
+
+#### Example Config
+
+Here is a part of config example where we make `train_dataloader` use `IcdarDataset` to load the old labels.
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+icdar2015_textdet_train = dict(
+    type='IcdarDatasetDataset',
+    data_root='data/det/icdar2015',
+    ann_file='instances_training.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=pipeline)
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+```
+
+### WildReceiptDataset
+
+It's customized for [WildReceipt](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/data_prepare/datasetzoo.html#wildreceipt) dataset only.
+
+#### Annotation Format
+
+```json
+// Close Set
+{
+  "file_name": "image_files/Image_16/11/d5de7f2a20751e50b84c747c17a24cd98bed3554.jpeg",
+  "height": 1200,
+  "width": 1600,
+  "annotations":
+    [
+      {
+        "box": [550.0, 190.0, 937.0, 190.0, 937.0, 104.0, 550.0, 104.0],
+        "text": "SAFEWAY",
+        "label": 1
+      },
+      {
+        "box": [1048.0, 211.0, 1074.0, 211.0, 1074.0, 196.0, 1048.0, 196.0],
+        "text": "TM",
+        "label": 25
+      }
+    ], //...
+}
+
+// Open Set
+{
+  "file_name": "image_files/Image_12/10/845be0dd6f5b04866a2042abd28d558032ef2576.jpeg",
+  "height": 348,
+  "width": 348,
+  "annotations":
+    [
+      {
+        "box": [114.0, 19.0, 230.0, 19.0, 230.0, 1.0, 114.0, 1.0],
+        "text": "CHOEUN",
+        "label": 2,
+        "edge": 1
+      },
+      {
+        "box": [97.0, 35.0, 236.0, 35.0, 236.0, 19.0, 97.0, 19.0],
+        "text": "KOREANRESTAURANT",
+        "label": 2,
+        "edge": 1
+      }
+    ]
+}
+```
+
+#### Example Config
+
+Please refer to [SDMGR's config](https://github.com/open-mmlab/mmocr/blob/f30c16ce96bd2393570c04eeb9cf48a7916315cc/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py) for more details.
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/engine.md b/mmocr-dev-1.x/docs/en/basic_concepts/engine.md
new file mode 100644
index 0000000000000000000000000000000000000000..a113015ac6e77292e4e43779c2c498af12ea927c
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/engine.md
@@ -0,0 +1,3 @@
+# Engine\[coming soon\]
+
+Coming Soon!
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/evaluation.md b/mmocr-dev-1.x/docs/en/basic_concepts/evaluation.md
new file mode 100644
index 0000000000000000000000000000000000000000..ef477e967d646c6b000e44a75587440896d80490
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/evaluation.md
@@ -0,0 +1,197 @@
+# Evaluation
+
+```{note}
+Before reading this document, we recommend that you first read {external+mmengine:doc}`MMEngine: Model Accuracy Evaluation Basics <tutorials/evaluation>`.
+```
+
+## Metrics
+
+MMOCR implements widely-used evaluation metrics for text detection, text recognition and key information extraction tasks based on the {external+mmengine:doc}`MMEngine: BaseMetric <design/evaluation>` base class. Users can specify the metric used in the validation and test phases by modifying the `val_evaluator` and `test_evaluator` fields in the configuration file. For example, the following config shows how to use `HmeanIOUMetric` to evaluate the model performance in text detection task.
+
+```python
+val_evaluator = dict(type='HmeanIOUMetric')
+test_evaluator = val_evaluator
+
+# In addition, MMOCR also supports the combined evaluation of multiple metrics for the same task, such as using WordMetric and CharMetric at the same time
+val_evaluator = [
+    dict(type='WordMetric', mode=['exact', 'ignore_case', 'ignore_case_symbol']),
+    dict(type='CharMetric')
+]
+```
+
+```{tip}
+More evaluation related configurations can be found in the [evaluation configuration tutorial](../user_guides/config.md#evaluation-configuration).
+```
+
+As shown in the following table, MMOCR currently supports 5 evaluation metrics for text detection, text recognition, and key information extraction tasks, including `HmeanIOUMetric`, `WordMetric`, `CharMetric`, `OneMinusNEDMetric`, and `F1Metric`.
+
+|                                         |         |                                                   |                                                                       |
+| --------------------------------------- | ------- | ------------------------------------------------- | --------------------------------------------------------------------- |
+| Metric                                  | Task    | Input Field                                       | Output Field                                                          |
+| [HmeanIOUMetric](#hmeanioumetric)       | TextDet | `pred_polygons`<br>`pred_scores`<br>`gt_polygons` | `recall`<br>`precision`<br>`hmean`                                    |
+| [WordMetric](#wordmetric)               | TextRec | `pred_text`<br>`gt_text`                          | `word_acc`<br>`word_acc_ignore_case`<br>`word_acc_ignore_case_symbol` |
+| [CharMetric](#charmetric)               | TextRec | `pred_text`<br>`gt_text`                          | `char_recall`<br>`char_precision`                                     |
+| [OneMinusNEDMetric](#oneminusnedmetric) | TextRec | `pred_text`<br>`gt_text`                          | `1-N.E.D`                                                             |
+| [F1Metric](#f1metric)                   | KIE     | `pred_labels`<br>`gt_labels`                      | `macro_f1`<br>`micro_f1`                                              |
+
+In general, the evaluation metric used in each task is conventionally determined. Users usually do not need to understand or manually modify the internal implementation of the evaluation metric. However, to facilitate more customized requirements, this document will further introduce the specific implementation details and configurable parameters of the built-in metrics in MMOCR.
+
+### HmeanIOUMetric
+
+[HmeanIOUMetric](mmocr.evaluation.metrics.hmean_iou_metric.HmeanIOUMetric) is one of the most widely used evaluation metrics in text detection tasks, because it calculates the harmonic mean (H-mean) between the detection precision (P) and recall rate (R). The `HmeanIOUMetric` can be calculated by the following equation:
+
+```{math}
+H = \frac{2}{\frac{1}{P} + \frac{1}{R}} = \frac{2PR}{P+R}
+```
+
+In addition, since it is equivalent to the F-score (also known as F-measure or F-metric) when {math}`\beta = 1`, `HmeanIOUMetric` is sometimes written as `F1Metric` or `f1-score`:
+
+```{math}
+F_1=(1+\beta^2)\cdot\frac{PR}{\beta^2\cdot P+R} = \frac{2PR}{P+R}
+```
+
+In MMOCR, the calculation of `HmeanIOUMetric` can be summarized as the following steps:
+
+1. Filter out invalid predictions
+
+   - Filter out predictions with a score is lower than `pred_score_thrs`
+   - Filter out predictions overlapping with `ignored` ground truth boxes with an overlap ratio higher than `ignore_precision_thr`
+
+   It is worth noting that `pred_score_thrs` will **automatically search** for the **best threshold** within a certain range by default, and users can also customize the search range by manually modifying the configuration file:
+
+   ```python
+   # By default, HmeanIOUMetric searches the best threshold within the range [0.3, 0.9] with a step size of 0.1
+   val_evaluator = dict(type='HmeanIOUMetric', pred_score_thrs=dict(start=0.3, stop=0.9, step=0.1))
+   ```
+
+2. Calculate the IoU matrix
+
+   - At the data processing stage, `HmeanIOUMetric` will calculate and maintain an {math}`M \times N` IoU matrix `iou_metric` for the convenience of the subsequent bounding box pairing step. Here, M and N represent the number of label bounding boxes and filtered prediction bounding boxes, respectively. Therefore, each element of this matrix stores the IoU between the m-th label bounding box and the n-th prediction bounding box.
+
+3. Compute the number of GT samples that can be accurately matched based on the corresponding pairing strategy
+
+   Although `HmeanIOUMetric` can be calculated by a fixed formula, there may still be some subtle differences in the specific implementations. These differences mainly reflect the use of different strategies to match gt and predicted bounding boxes, which leads to the difference in final scores. Currently, MMOCR supports two matching strategies, namely `vanilla` and `max_matching`, for the `HmeanIOUMetric`. As shown below, users can specify the matching strategies in the config.
+
+   - `vanilla` matching strategy
+
+     By default, `HmeanIOUMetric` adopts the `vanilla` matching strategy, which is consistent with the `hmean-iou` implementation in MMOCR 0.x and the **official** text detection competition evaluation standard of ICDAR series. The matching strategy adopts the first-come-first-served matching method to pair the labels and predictions.
+
+     ```python
+     # By default, HmeanIOUMetric adopts 'vanilla' matching strategy
+     val_evaluator = dict(type='HmeanIOUMetric')
+     ```
+
+   - `max_matching` matching strategy
+
+     To address the shortcomings of the existing matching mechanism, MMOCR has implemented a more efficient matching strategy to maximize the number of matches.
+
+     ```python
+     # Specify to use 'max_matching' matching strategy
+     val_evaluator = dict(type='HmeanIOUMetric', strategy='max_matching')
+     ```
+
+   ```{note}
+   We recommend that research-oriented developers use the default `vanilla` matching strategy to ensure consistency with other papers. For industry-oriented developers, you can use the `max_matching` matching strategy to achieve optimized performance.
+   ```
+
+4. Compute the final evaluation score according to the aforementioned matching strategy
+
+### WordMetric
+
+[WordMetric](mmocr.evaluation.metrics.recog_metric.WordMetric) implements **word-level** text recognition evaluation metrics and includes three text matching modes, namely `exact`, `ignore_case`, and `ignore_case_symbol`. Users can freely combine the output of one or more text matching modes in the configuration file by modifying the `mode` field.
+
+```python
+# Use WordMetric for text recognition task
+val_evaluator = [
+    dict(type='WordMetric', mode=['exact', 'ignore_case', 'ignore_case_symbol'])
+]
+```
+
+- `exact`：Full matching mode, i.e., only when the predicted text and the ground truth text are exactly the same, the predicted text is considered to be correct.
+- `ignore_case`：The mode ignores the case of the predicted text and the ground truth text.
+- `ignore_case_symbol`：The mode ignores the case and symbols of the predicted text and the ground truth text. This is also the text recognition accuracy reported by most academic papers. The performance reported by MMOCR uses the `ignore_case_symbol` mode by default.
+
+Assume that the real label is `MMOCR!` and the model output is `mmocr`. The `WordMetric` scores under the three matching modes are: `{'exact': 0, 'ignore_case': 0, 'ignore_case_symbol': 1}`.
+
+### CharMetric
+
+[CharMetric](mmocr.evaluation.metrics.recog_metric.CharMetric) implements **character-level** text recognition evaluation metrics that are **case-insensitive**.
+
+```python
+# Use CharMetric for text recognition task
+val_evaluator = [dict(type='CharMetric')]
+```
+
+Specifically, `CharMetric` will output two evaluation metrics, namely `char_precision` and `char_recall`. Let the number of correctly predicted characters (True Positive) be {math}`\sigma_{tp}`, then the precision *P* and recall *R* can be calculated by the following equation:
+
+```{math}
+P=\frac{\sigma_{tp}}{\sigma_{pred}}, R = \frac{\sigma_{tp}}{\sigma_{gt}}
+```
+
+where {math}`\sigma_{gt}` and {math}`\sigma_{pred}` represent the total number of characters in the label text and the predicted text, respectively.
+
+For example, assume that the label text is "MM**O**CR" and the predicted text is "mm**0**cR**1**". The score of the `CharMetric` is:
+
+```{math}
+P=\frac{4}{6}, R=\frac{4}{5}
+```
+
+### OneMinusNEDMetric
+
+[OneMinusNEDMetric(1-N.E.D)](mmocr.evaluation.metrics.recog_metric.OneMinusNEDMetric) is commonly used for text recognition evaluation of Chinese or English **text line-level** annotations. Unlike the full matching metric that requires the prediction and the gt text to be exactly the same, `1-N.E.D` uses the normalized [edit distance](https://en.wikipedia.org/wiki/Edit_distance) (also known as Levenshtein Distance) to measure the difference between the predicted and the gt text, so that the performance difference of the model can be better distinguished when evaluating long texts. Assume that the real and predicted texts are {math}`s_i` and {math}`\hat{s_i}`, respectively, and their lengths are {math}`l_{i}` and {math}`\hat{l_i}`, respectively. The `OneMinusNEDMetric` score can be calculated by the following formula:
+
+```{math}
+score = 1 - \frac{1}{N}\sum_{i=1}^{N}\frac{D(s_i, \hat{s_{i}})}{max(l_{i},\hat{l_{i}})}
+```
+
+where *N* is the total number of samples, and {math}`D(s_1, s_2)` is the edit distance between two strings.
+
+For example, assume that the real label is "OpenMMLabMMOCR", the prediction of model A is "0penMMLabMMOCR", and the prediction of model B is "uvwxyz". The results of the full matching and `OneMinusNEDMetric` evaluation metrics are as follows:
+
+|         |            |            |
+| ------- | ---------- | ---------- |
+|         | Full-match | 1 - N.E.D. |
+| Model A | 0          | 0.92857    |
+| Model B | 0          | 0          |
+
+As shown in the table above, although the model A only predicted one letter incorrectly, both models got 0 in when using full-match strategy. However, the `OneMinusNEDMetric` evaluation metric can better distinguish the performance of the two models on **long texts**.
+
+### F1Metric
+
+[F1Metric](mmocr.evaluation.metrics.f_metric.F1Metric) implements the F1-Metric evaluation metric for KIE tasks and provides two modes, namely `micro` and `macro`.
+
+```python
+val_evaluator = [
+    dict(type='F1Metric', mode=['micro', 'macro'],
+]
+```
+
+- `micro` mode: Calculate the global F1-Metric score based on the total number of True Positive, False Negative, and False Positive.
+
+- `macro` mode：Calculate the F1-Metric score for each class and then take the average.
+
+### Customized Metric
+
+MMOCR supports the implementation of customized evaluation metrics for users who pursue higher customization. In general, users only need to create a customized evaluation metric class `CustomizedMetric` and inherit {external+mmengine:doc}`MMEngine: BaseMetric <design/evaluation>`. Then, the data format processing method `process` and the metric calculation method `compute_metrics` need to be overwritten respectively. Finally, add it to the `METRICS` registry to implement any customized evaluation metric.
+
+```python
+from mmengine.evaluator import BaseMetric
+from mmocr.registry import METRICS
+
+@METRICS.register_module()
+class CustomizedMetric(BaseMetric):
+
+    def process(self, data_batch: Sequence[Dict], predictions: Sequence[Dict]):
+    """ process receives two parameters, data_batch stores the gt label information, and predictions stores the predicted results.
+    """
+        pass
+
+    def compute_metrics(self, results: List):
+    """ compute_metric receives the results of the process method as input and returns the evaluation results.
+    """
+        pass
+```
+
+```{note}
+More details can be found in {external+mmengine:doc}`MMEngine Documentation: BaseMetric <design/evaluation>`.
+```
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/models.md b/mmocr-dev-1.x/docs/en/basic_concepts/models.md
new file mode 100644
index 0000000000000000000000000000000000000000..7eab561e7276af01c63ca7ae8c1452c5c6317c25
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/models.md
@@ -0,0 +1,3 @@
+# Models\[coming soon\]
+
+Coming Soon!
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/overview.md b/mmocr-dev-1.x/docs/en/basic_concepts/overview.md
new file mode 100644
index 0000000000000000000000000000000000000000..9e31fefa5fc8cc9e7f86be30b18f0b62aa1c85d5
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/overview.md
@@ -0,0 +1,3 @@
+# Overview & Features\[coming soon\]
+
+Coming Soon!
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/structures.md b/mmocr-dev-1.x/docs/en/basic_concepts/structures.md
new file mode 100644
index 0000000000000000000000000000000000000000..0f73a77286457a4f1360fcb8cd83353202ea786d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/structures.md
@@ -0,0 +1,219 @@
+# Data Structures and Elements
+
+MMOCR uses {external+mmengine:doc}`MMEngine: Abstract Data Element <advanced_tutorials/data_element>` to encapsulate the data required for each task into `data_sample`. The base class has implemented basic add/delete/update/check functions and supports data migration between different devices, as well as dictionary-like and tensor-like operations, which also allows the interfaces of different algorithms to be unified.
+
+Thanks to the unified data structures, the data flow between each module in the algorithm libraries, such as [`visualizer`](./visualizers.md), [`evaluator`](./evaluation.md), [`dataset`](./datasets.md), is greatly simplified. In MMOCR, we have the following conventions for different data types.
+
+- **xxxData**: Single granularity data annotation or model output. Currently MMEngine has three built-in granularities of {external+mmengine:doc}`data elements <advanced_tutorials/data_element>`, including instance-level data (`InstanceData`), pixel-level data (`PixelData`) and image-level label data (`LabelData`). Among the tasks currently supported by MMOCR, text detection and key information extraction tasks use `InstanceData` to encapsulate the bounding boxes and the corresponding box label, while the text recognition task uses `LabelData` to encapsulate the text content.
+- **xxxDataSample**: inherited from {external+mmengine:doc}`MMEngine: Base Data Element <advanced_tutorials/data_element>`, used to hold **all** annotation and prediction information that required by a single task. For example, [`TextDetDataSample`](mmocr.structures.textdet_data_sample.TextDetDataSample) for the text detection, [`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample) for text recognition, and [`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample) for the key information extraction task.
+
+In the following, we will introduce the practical application of data elements **xxxData** and data samples **xxxDataSample** in MMOCR, respectively.
+
+## Data Elements - xxxData
+
+`InstanceData` and `LabelData` are the `BaseDataElement` defined in `MMEngine` to encapsulate different granularity of annotation data or model output. In MMOCR, we have used `InstanceData` and `LabelData` for encapsulating the data types actually used in OCR-related tasks.
+
+### InstanceData
+
+In the **text detection** task, the detector concentrate on instance-level text samples, so we use `InstanceData` to encapsulate the data needed for this task. Typically, its required training annotation and prediction output contain rectangular or polygonal bounding boxes, as well as bounding box labels. Since the text detection task has only one positive sample class, "text", in MMOCR we use `0` to number this class by default. The following code example shows how to use the `InstanceData` to encapsulate the data used in the text detection task.
+
+```python
+import torch
+from mmengine.structures import InstanceData
+
+# defining gt_instance for encapsulating the ground truth data
+gt_instance = InstanceData()
+gt_instance.bbox = torch.Tensor([[0, 0, 10, 10], [10, 10, 20, 20]])
+gt_instance.polygons = torch.Tensor([[[0, 0], [10, 0], [10, 10], [0, 10]],
+                                    [[10, 10], [20, 10], [20, 20], [10, 20]]])
+gt_instance.label = torch.Tensor([0, 0])
+
+# defining pred_instance for encapsulating the prediction data
+pred_instances = InstanceData()
+pred_polygons, scores = model(input)
+pred_instances.polygons = pred_polygons
+pred_instances.scores = scores
+```
+
+The conventions for the fields in `InstanceData` in MMOCR are shown in the table below. It is important to note that the length of each field in `InstanceData` must be equal to the number of instances `N` in the sample.
+
+|             |                                    |                                                                                                                                                             |
+| ----------- | ---------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Field       | Type                               | Description                                                                                                                                                 |
+| bboxes      | `torch.FloatTensor`                | Bounding boxes `[x1, y1, x2, y2]` with the shape `(N, 4)`.                                                                                                  |
+| labels      | `torch.LongTensor`                 | Instance label with the shape `(N, )`. By default, MMOCR uses `0` to represent the "text" class.                                                            |
+| polygons    | `list[np.array(dtype=np.float32)]` | Polygonal bounding boxes with the shape `(N, )`.                                                                                                            |
+| scores      | `torch.Tensor`                     | Confidence scores of the predictions of bounding boxes. `(N, )`.                                                                                            |
+| ignored     | `torch.BoolTensor`                 | Whether to ignore the current sample with the shape `(N, )`.                                                                                                |
+| texts       | `list[str]`                        | The text content of each instance with the shape `(N, )`，used for e2e text spotting or KIE task.                                                           |
+| text_scores | `torch.FloatTensor`                | Confidence score of the predictions of text contents with the shape `(N, )`，used for e2e text spotting task.                                               |
+| edge_labels | `torch.IntTensor`                  | The node adjacency matrix with the shape `(N, N)`. In KIE, the optional values for the state between nodes are `-1` (ignored, not involved in loss calculation)，`0` (disconnected) and `1`(connected). |
+| edge_scores | `torch.FloatTensor`                | The prediction confidence of each edge in the KIE task, with the shape `(N, N)`.                                                                            |
+
+### LabelData
+
+For **text recognition** tasks, both labeled content and predicted content are wrapped using `LabelData`.
+
+```python
+import torch
+from mmengine.data import LabelData
+
+# defining gt_text for encapsulating the ground truth data
+gt_text = LabelData()
+gt_text.item = 'MMOCR'
+
+# defining pred_text for encapsulating the prediction data
+pred_text = LabelData()
+index, score = model(input)
+text = dictionary.idx2str(index)
+pred_text.score = score
+pred_text.item = text
+```
+
+The conventions for the `LabelData` fields in MMOCR are shown in the following table.
+
+|                |                    |                                                                                                                                                                          |
+| -------------- | ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| Field          | Type               | Description                                                                                                                                                              |
+| item           | `str`              | Text content.                                                                                                                                                            |
+| score          | `list[float]`      | Confidence socre of the predicted text.                                                                                                                                  |
+| indexes        | `torch.LongTensor` | A sequence of text characters encoded by [dictionary](../basic_concepts/models.md#dictionary) and containing all special characters except `<UNK>`.                      |
+| padded_indexes | `torch.LongTensor` | If the length of indexes is less than the maximum sequence length and `pad_idx` exists, this field holds the encoded text sequence padded to the maximum sequence length of `max_seq_len`. |
+
+## DataSample xxxDataSample
+
+By defining a uniform data structure, we can easily encapsulate the annotation data and prediction results in a unified way, making data transfer between different modules of the code base easier. In MMOCR, we have designed three data structures based on the data needed in three tasks: [`TextDetDataSample`](mmocr.structures.textdet_data_sample.TextDetDataSample), [`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample), and [`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample). These data structures all inherit from {external+mmengine:doc}`MMEngine: Base Data Element <advanced_tutorials/data_element>`, which is used to hold all annotation and prediction information required by each task.
+
+### Text Detection - TextDetDataSample
+
+[TextDetDataSample](mmocr.structures.textdet_data_sample.TextDetDataSample) is used to encapsulate the data needed for the text detection task. It contains two main fields `gt_instances` and `pred_instances`, which are used to store the annotation information and prediction results respectively.
+
+|                |                                 |                         |
+| -------------- | ------------------------------- | ----------------------- |
+| Field          | Type                            | Description             |
+| gt_instances   | [`InstanceData`](#instancedata) | Annotation information. |
+| pred_instances | [`InstanceData`](#instancedata) | Prediction results.     |
+
+The fields of [`InstanceData`](#instancedata) that will be used are:
+
+|          |                                    |                                                                                                  |
+| -------- | ---------------------------------- | ------------------------------------------------------------------------------------------------ |
+| Field    | Type                               | Description                                                                                      |
+| bboxes   | `torch.FloatTensor`                | Bounding boxes `[x1, y1, x2, y2]` with the shape `(N, 4)`.                                       |
+| labels   | `torch.LongTensor`                 | Instance label with the shape `(N, )`. By default, MMOCR uses `0` to represent the "text" class. |
+| polygons | `list[np.array(dtype=np.float32)]` | Polygonal bounding boxes with the shape `(N, )`.                                                 |
+| scores   | `torch.Tensor`                     | Confidence scores of the predictions of bounding boxes. `(N, )`.                                 |
+| ignored  | `torch.BoolTensor`                 | Boolean flags with the shape `(N, )`, indicating whether to ignore the current sample.           |
+
+Since text detection models usually only output one of the bboxes/polygons, we only need to make sure that one of these two is assigned a value.
+
+The following sample code demonstrates the use of `TextDetDataSample`.
+
+```python
+import torch
+from mmengine.data import TextDetDataSample
+
+data_sample = TextDetDataSample()
+# Define the ground truth data
+img_meta = dict(img_shape=(800, 1196, 3), pad_shape=(800, 1216, 3))
+gt_instances = InstanceData(metainfo=img_meta)
+gt_instances.bboxes = torch.rand((5, 4))
+gt_instances.labels = torch.zeros((5,), dtype=torch.long)
+data_sample.gt_instances = gt_instances
+
+# Define the prediction data
+pred_instances = InstanceData()
+pred_instances.bboxes = torch.rand((5, 4))
+pred_instances.labels = torch.zeros((5,), dtype=torch.long)
+data_sample.pred_instances = pred_instances
+```
+
+### Text Recognition - TextRecogDataSample
+
+[`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample) is used to encapsulate the data for the text recognition task. It has two fields, `gt_text` and `pred_text` , which are used to store annotation information and prediction results, respectively.
+
+|           |                                            |                     |
+| --------- | ------------------------------------------ | ------------------- |
+| Field     | Type                                       | Description         |
+| gt_text   | [`LabelData`](#text-recognition-labeldata) | Label information.  |
+| pred_text | [`LabelData`](#text-recognition-labeldata) | Prediction results. |
+
+The following sample code demonstrates the use of [`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample).
+
+```python
+import torch
+from mmengine.data import TextRecogDataSample
+
+data_sample = TextRecogDataSample()
+# Define the ground truth data
+img_meta = dict(img_shape=(800, 1196, 3), pad_shape=(800, 1216, 3))
+gt_text = LabelData(metainfo=img_meta)
+gt_text.item = 'mmocr'
+data_sample.gt_text = gt_text
+
+# Define the prediction data
+pred_text = LabelData(metainfo=img_meta)
+pred_text.item = 'mmocr'
+data_sample.pred_text = pred_text
+```
+
+The fields of `LabelData` that will be used are:
+
+|                |                     |                                                                                                                                                                         |
+| -------------- | ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Field          | Type                | Description                                                                                                                                                             |
+| item           | `list[str]`         | The text corresponding to the instance, of length (N, ), for end-to-end OCR tasks and KIE                                                                               |
+| score          | `torch.FloatTensor` | Confidence of the text prediction, of length (N, ), for the end-to-end OCR task                                                                                         |
+| indexes        | `torch.LongTensor`  | A sequence of text characters encoded by [dictionary](../basic_concepts/models.md#dictionary) and containing all special characters except `<UNK>`.                     |
+| padded_indexes | `torch.LongTensor`  | If the length of indexes is less than the maximum sequence length and `pad_idx` exists, this field holds the encoded text sequence padded to the maximum sequence length of `max_seq_len`. |
+
+### Key Information Extraction - KIEDataSample
+
+[`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample) is used to encapsulate the data needed for the KIE task. It also contains two fields, `gt_instances` and `pred_instances`, which are used to store annotation information and prediction results respectively.
+
+|                |                                                |                         |
+| -------------- | ---------------------------------------------- | ----------------------- |
+| Field          | Type                                           | Description             |
+| gt_instances   | [`InstanceData`](#text-detection-instancedata) | Annotation information. |
+| pred_instances | [`InstanceData`](#text-detection-instancedata) | Prediction results.     |
+
+The [`InstanceData`](#text-detection-instancedata) fields that will be used by this task are shown in the following table.
+
+|             |                     |                                                                                                                                                                            |
+| ----------- | ------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Field       | Type                | Description                                                                                                                                                                |
+| bboxes      | `torch.FloatTensor` | Bounding boxes `[x1, y1, x2, y2]` with the shape `(N, 4)`.                                                                                                                 |
+| labels      | `torch.LongTensor`  | Instance label with the shape `(N, )`.                                                                                                                                     |
+| texts       | `list[str]`         | The text content of each instance with the shape `(N, )`，used for e2e text spotting or KIE task.                                                                          |
+| edge_labels | `torch.IntTensor`   | The node adjacency matrix with the shape `(N, N)`. In the KIE task, the optional values for the state between nodes are `-1` (ignored, not involved in loss calculation)，`0` (disconnected) and `1`(connected). |
+| edge_scores | `torch.FloatTensor` | The prediction confidence of each edge in the KIE task, with the shape `(N, N)`.                                                                                           |
+| scores      | `torch.FloatTensor` | The confidence scores for node label predictions, with the shape `(N,)`.                                                                                                   |
+
+```{warning}
+Since there is no unified standard for model implementation of KIE tasks, the design currently considers only [SDMGR](../../../configs/kie/sdmgr/README.md) model usage scenarios. Therefore, the design is subject to change as we support more KIE models.
+```
+
+The following sample code shows the use of [`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample).
+
+```python
+import torch
+from mmengine.data import KIEDataSample
+
+data_sample = KIEDataSample()
+# Define the ground truth data
+img_meta = dict(img_shape=(800, 1196, 3),pad_shape=(800, 1216, 3))
+gt_instances = InstanceData(metainfo=img_meta)
+gt_instances.bboxes = torch.rand((5, 4))
+gt_instances.labels = torch.zeros((5,), dtype=torch.long)
+gt_instances.texts = ['text1', 'text2', 'text3', 'text4', 'text5']
+gt_instances.edge_lebels = torch.randint(-1, 2, (5, 5))
+data_sample.gt_instances = gt_instances
+
+# Define the prediction data
+pred_instances = InstanceData()
+pred_instances.bboxes = torch.rand((5, 4))
+pred_instances.labels = torch.rand((5,))
+pred_instances.edge_labels = torch.randint(-1, 2, (10, 10))
+pred_instances.edge_scores = torch.rand((10, 10))
+data_sample.pred_instances = pred_instances
+```
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/transforms.md b/mmocr-dev-1.x/docs/en/basic_concepts/transforms.md
new file mode 100644
index 0000000000000000000000000000000000000000..0a19208156b4b6b0e7ad3b7eaf9014e09e586d00
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/transforms.md
@@ -0,0 +1,226 @@
+# Data Transforms and Pipeline
+
+In the design of MMOCR, dataset construction and preparation are decoupled. That is, dataset construction classes such as [`OCRDataset`](mmocr.datasets.ocr_dataset.OCRDataset) are responsible for loading and parsing annotation files; while data transforms further apply data preprocessing, augmentation, formatting, and other related functions. Currently, there are five types of data transforms implemented in MMOCR, as shown in the following table.
+
+|                                  |                                                                       |                                                                                                     |
+| -------------------------------- | --------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
+| Transforms Type                  | File                                                                  | Description                                                                                         |
+| Data Loading                     | loading.py                                                            | Implemented the data loading functions.                                                             |
+| Data Formatting                  | formatting.py                                                         | Formatting the data required by different tasks.                                                    |
+| Cross Project Data Adapter       | adapters.py                                                           | Converting the data format between other OpenMMLab projects and MMOCR.                              |
+| Data Augmentation Functions      | ocr_transforms.py<br>textdet_transforms.py<br>textrecog_transforms.py | Various built-in data augmentation methods designed for different tasks.                            |
+| Wrappers of Third Party Packages | wrappers.py                                                           | Wrapping the transforms implemented in popular third party packages such as [ImgAug](https://github.com/aleju/imgaug), and adapting them to MMOCR format. |
+
+Since each data transform class is independent of each other, we can easily combine any data transforms to build a data pipeline after we have defined the data fields. As shown in the following figure, in MMOCR, a typical training data pipeline consists of three stages: **data loading**, **data augmentation**, and **data formatting**. Users only need to define the data pipeline list in the configuration file and specify the specific data transform class and its parameters:
+
+<div align="center">
+
+![Flowchart](https://user-images.githubusercontent.com/45810070/192265787-86c02e51-5f4a-4686-b2a1-255a7db98ada.jpg)
+
+</div>
+
+```python
+train_pipeline_r18 = [
+    # Loading images
+    dict(
+        type='LoadImageFromFile',
+        color_type='color_ignore_orientation'),
+    # Loading annotations
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    # Data augmentation
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    # Data formatting
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+```
+
+```{tip}
+More tutorials about data pipeline configuration can be found in the [Config Doc](../user_guides/config.md#data-pipeline-configuration). Next, we will briefly introduce the data transforms supported in MMOCR according to their categories.
+```
+
+For each data transform, MMOCR provides a detailed docstring. For example, in the header of each data transform class, we annotate `Required Keys`, `Modified Keys` and `Added Keys`. The `Required Keys` represent the mandatory fields that should be included in the input required by the data transform, while the `Modified Keys` and `Added Keys` indicate that the transform may modify or add the fields into the original data. For example, `LoadImageFromFile` implements the image loading function, whose `Required Keys` is the image path `img_path`, and the `Modified Keys` includes the loaded image `img`, the current size of the image `img_shape`, the original size of the image `ori_shape`, and other image attributes.
+
+```python
+@TRANSFORMS.register_module()
+class LoadImageFromFile(MMCV_LoadImageFromFile):
+    # We provide detailed docstring for each data transform.
+    """Load an image from file.
+
+    Required Keys:
+
+    - img_path
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - ori_shape
+    """
+```
+
+```{note}
+In the data pipeline of MMOCR, the image and label information are saved in a dictionary. By using the unified fields, the data can be freely transferred between different data transforms. Therefore, it is very important to understand the conventional fields used in MMOCR.
+```
+
+For your convenience, the following table lists the conventional keys used in MMOCR data transforms.
+
+|                  |                                   |                                                                                                                                                         |
+| ---------------- | --------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Key              | Type                              | Description                                                                                                                                             |
+| img              | `np.array(dtype=np.uint8)`        | Image array, shape of `(h, w, c)`.                                                                                                                      |
+| img_shape        | `tuple(int, int)`                 | Current image size `(h, w)`.                                                                                                                            |
+| ori_shape        | `tuple(int, int)`                 | Original image size `(h, w)`.                                                                                                                           |
+| scale            | `tuple(int, int)`                 | Stores the target image size `(h, w)` specified by the user in the `Resize` data transform series. Note: This value may not correspond to the actual image size after the transformation. |
+| scale_factor     | `tuple(float, float)`             | Stores the target image scale factor `(w_scale, h_scale)` specified by the user in the `Resize` data transform series. Note: This value may not correspond to the actual image size after the transformation. |
+| keep_ratio       | `bool`                            | Boolean flag determines whether to keep the aspect ratio while scaling images.                                                                          |
+| flip             | `bool`                            | Boolean flags to indicate whether the image has been flipped.                                                                                           |
+| flip_direction   | `str`                             | Flipping direction, options are `horizontal`, `vertical`, `diagonal`.                                                                                   |
+| gt_bboxes        | `np.array(dtype=np.float32)`      | Ground-truth bounding boxes.                                                                                                                            |
+| gt_polygons      | `list[np.array(dtype=np.float32)` | Ground-truth polygons.                                                                                                                                  |
+| gt_bboxes_labels | `np.array(dtype=np.int64)`        | Category label of bounding boxes. By default, MMOCR uses `0` to represent "text" instances.                                                             |
+| gt_texts         | `list[str]`                       | Ground-truth text content of the instance.                                                                                                              |
+| gt_ignored       | `np.array(dtype=np.bool_)`        | Boolean flag indicating whether ignoring the instance (used in text detection).                                                                         |
+
+## Data Loading
+
+Data loading transforms mainly implement the functions of loading data from different formats and backends. Currently, the following data loading transforms are implemented in MMOCR:
+
+|                    |                                                           |                                                                |                                                                 |
+| ------------------ | --------------------------------------------------------- | -------------------------------------------------------------- | --------------------------------------------------------------- |
+| Transforms Name    | Required Keys                                             | Modified/Added Keys                                            | Description                                                     |
+| LoadImageFromFile  | `img_path`                                                | `img`<br>`img_shape`<br>`ori_shape`                            | Load image from the specified path，supporting different file storage backends (e.g. `disk`, `http`, `petrel`) and decoding backends (e.g. `cv2`, `turbojpeg`, `pillow`, `tifffile`). |
+| LoadOCRAnnotations | `bbox`<br>`bbox_label`<br>`polygon`<br>`ignore`<br>`text` | `gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_polygons`<br>`gt_ignored`<br>`gt_texts` | Parse the annotation required by OCR task.                      |
+| LoadKIEAnnotations | `bboxes` `bbox_labels` `edge_labels`<br>`texts`           | `gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_edge_labels`<br>`gt_texts`<br>`ori_shape` | Parse the annotation required by KIE task.                      |
+
+## Data Augmentation
+
+Data augmentation is an indispensable process in text detection and recognition tasks. Currently, MMOCR has implemented dozens of data augmentation modules commonly used in OCR fields, which are classified into [ocr_transforms.py](/mmocr/datasets/transforms/ocr_transforms.py), [textdet_transforms.py](/mmocr/datasets/transforms/textdet_transforms.py), and [textrecog_transforms.py](/mmocr/datasets/transforms/textrecog_transforms.py).
+
+Specifically, `ocr_transforms.py` implements generic OCR data augmentation modules such as `RandomCrop` and `RandomRotate`:
+
+|                 |                                                               |                                                                |                                                                |
+| --------------- | ------------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------- |
+| Transforms Name | Required Keys                                                 | Modified/Added Keys                                            | Description                                                    |
+| RandomCrop      | `img`<br>`gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_polygons`<br>`gt_ignored`<br>`gt_texts` (optional) | `img`<br>`img_shape`<br>`gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_polygons`<br>`gt_ignored`<br>`gt_texts` (optional) | Randomly crop the image and make sure the cropped image contains at least one text instance. The optional parameter is `min_side_ratio`, which controls the ratio of the short side of the cropped image to the original image, the default value is `0.4`. |
+| RandomRotate    | `img`<br>`img_shape`<br>`gt_bboxes` (optional)<br>`gt_polygons` (optional) | `img`<br>`img_shape`<br>`gt_bboxes` (optional)<br>`gt_polygons` (optional)<br>`rotated_angle` | Randomly rotate the image and optionally fill the blank areas of the rotated image. |
+|                 |                                                               |                                                                |                                                                |
+
+`textdet_transforms.py` implements text detection related data augmentation modules:
+
+|                   |                                       |                                                                     |                                                                                 |
+| ----------------- | ------------------------------------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
+| Transforms Name   | Required Keys                         | Modified/Added Keys                                                 | Description                                                                     |
+| RandomFlip        | `img`<br>`gt_bboxes`<br>`gt_polygons` | `img`<br>`gt_bboxes`<br>`gt_polygons`<br>`flip`<br>`flip_direction` | Random flip, support `horizontal`, `vertical` and `diagonal` modes. Defaults to `horizontal`. |
+| FixInvalidPolygon | `gt_polygons`<br>`gt_ignored`         | `gt_polygons`<br>`gt_ignored`                                       | Automatically fixing the invalid polygons included in the annotations.          |
+
+`textrecog_transforms.py` implements text recognition related data augmentation modules:
+
+|                 |               |                                                                   |                                                                                                             |
+| --------------- | ------------- | ----------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------- |
+| Transforms Name | Required Keys | Modified/Added Keys                                               | Description                                                                                                 |
+| RescaleToHeight | `img`         | `img`<br>`img_shape`<br>`scale`<br>`scale_factor`<br>`keep_ratio` | Scales the image to the specified height while keeping the aspect ratio. When `min_width` and `max_width` are specified, the aspect ratio may be changed. |
+|                 |               |                                                                   |                                                                                                             |
+
+```{warning}
+The above table only briefly introduces some selected data augmentation methods, for more information please refer to the [API documentation](../api.rst) or the code docstrings.
+```
+
+## Data Formatting
+
+Data formatting transforms are responsible for packaging images, ground truth labels, and other information into a dictionary. Different tasks usually rely on different formatting transforms. For example:
+
+|                     |               |                     |                                               |
+| ------------------- | ------------- | ------------------- | --------------------------------------------- |
+| Transforms Name     | Required Keys | Modified/Added Keys | Description                                   |
+| PackTextDetInputs   | -             | -                   | Pack the inputs required by text detection.   |
+| PackTextRecogInputs | -             | -                   | Pack the inputs required by text recognition. |
+| PackKIEInputs       | -             | -                   | Pack the inputs required by KIE.              |
+
+## Cross Project Data Adapters
+
+The cross-project data adapters bridge the data formats between MMOCR and other OpenMMLab libraries such as [MMDetection](https://github.com/open-mmlab/mmdetection), making it possible to call models implemented in other OpenMMLab projects. Currently, MMOCR has implemented [`MMDet2MMOCR`](mmocr.datasets.transforms.MMDet2MMOCR) and [`MMOCR2MMDet`](mmocr.datasets.transforms.MMOCR2MMDet), allowing data to be converted between MMDetection and MMOCR formats; with these adapters, users can easily train any detectors supported by MMDetection in MMOCR. For example, we provide a [tutorial](#todo) to show how to train Mask R-CNN as a text detector in MMOCR.
+
+|                 |                                              |                               |                                            |
+| --------------- | -------------------------------------------- | ----------------------------- | ------------------------------------------ |
+| Transforms Name | Required Keys                                | Modified/Added Keys           | Description                                |
+| MMDet2MMOCR     | `gt_masks` `gt_ignore_flags`                 | `gt_polygons`<br>`gt_ignored` | Convert the fields used in MMDet to MMOCR. |
+| MMOCR2MMDet     | `img_shape`<br>`gt_polygons`<br>`gt_ignored` | `gt_masks` `gt_ignore_flags`  | Convert the fields used in MMOCR to MMDet. |
+
+## Wrappers
+
+To facilitate the use of popular third-party CV libraries in MMOCR, we provide wrappers in `wrappers.py` to unify the data format between MMOCR and other third-party libraries. Users can directly configure the data transforms provided by these libraries in the configuration file of MMOCR. The supported wrappers are as follows:
+
+|                    |                                                              |                                                               |                                                               |
+| ------------------ | ------------------------------------------------------------ | ------------------------------------------------------------- | ------------------------------------------------------------- |
+| Transforms Name    | Required Keys                                                | Modified/Added Keys                                           | Description                                                   |
+| ImgAugWrapper      | `img`<br>`gt_polygons` (optional for text recognition)<br>`gt_bboxes` (optional for text recognition)<br>`gt_bboxes_labels` (optional for text recognition)<br>`gt_ignored` (optional for text recognition)<br>`gt_texts` (optional) | `img`<br>`gt_polygons` (optional for text recognition)<br>`gt_bboxes` (optional for text recognition)<br>`gt_bboxes_labels` (optional for text recognition)<br>`gt_ignored` (optional for text recognition)<br>`img_shape` (optional)<br>`gt_texts` (optional) | [ImgAug](https://github.com/aleju/imgaug) wrapper, which bridges the data format and configuration between ImgAug and MMOCR, allowing users to config the data augmentation methods supported by ImgAug in MMOCR. |
+| TorchVisionWrapper | `img`                                                        | `img`<br>`img_shape`                                          | [TorchVision](https://github.com/pytorch/vision) wrapper, which bridges the data format and configuration between TorchVision and MMOCR, allowing users to config the data transforms supported by `torchvision.transforms` in MMOCR. |
+
+### `ImgAugWrapper` Example
+
+For example, in the original ImgAug, we can define a `Sequential` type data augmentation pipeline as follows to perform random flipping, random rotation and random scaling on the image:
+
+```python
+import imgaug.augmenters as iaa
+
+aug = iaa.Sequential(
+  iaa.Fliplr(0.5),                # horizontally flip 50% of all images
+  iaa.Affine(rotate=(-10, 10)),   # rotate by -10 to +10 degrees
+  iaa.Resize((0.5, 3.0))          # scale images to 50-300% of their size
+)
+```
+
+In MMOCR, we can directly configure the above data augmentation pipeline in `train_pipeline` as follows:
+
+```python
+dict(
+  type='ImgAugWrapper',
+  args=[
+    ['Fliplr', 0.5],
+    dict(cls='Affine', rotate=[-10, 10]),
+    ['Resize', [0.5, 3.0]],
+  ]
+)
+```
+
+Specifically, the `args` parameter accepts a list, and each element in the list can be a list or a dictionary. If it is a list, the first element of the list is the class name in `imgaug.augmenters`, and the following elements are the initialization parameters of the class; if it is a dictionary, the `cls` key corresponds to the class name in `imgaug.augmenters`, and the other key-value pairs correspond to the initialization parameters of the class.
+
+### `TorchVisionWrapper` Example
+
+For example, in the original TorchVision, we can define a `Compose` type data transformation pipeline as follows to perform color jittering on the image:
+
+```python
+import torchvision.transforms as transforms
+
+aug = transforms.Compose([
+  transforms.ColorJitter(
+    brightness=32.0 / 255,  # brightness jittering range
+    saturation=0.5)         # saturation jittering range
+])
+```
+
+In MMOCR, we can directly configure the above data transformation pipeline in `train_pipeline` as follows:
+
+```python
+dict(
+  type='TorchVisionWrapper',
+  op='ColorJitter',
+  brightness=32.0 / 255,
+  saturation=0.5
+)
+```
+
+Specifically, the `op` parameter is the class name in `torchvision.transforms`, and the following parameters correspond to the initialization parameters of the class.
diff --git a/mmocr-dev-1.x/docs/en/basic_concepts/visualizers.md b/mmocr-dev-1.x/docs/en/basic_concepts/visualizers.md
new file mode 100644
index 0000000000000000000000000000000000000000..bf620e1b7f531a8638242bbea7879f0d4430536f
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/basic_concepts/visualizers.md
@@ -0,0 +1,3 @@
+# Visualizers\[coming soon\]
+
+Coming Soon!
diff --git a/mmocr-dev-1.x/docs/en/conf.py b/mmocr-dev-1.x/docs/en/conf.py
new file mode 100644
index 0000000000000000000000000000000000000000..b406fa6debf1ab5e0a98d0f0d51eef1a8461830e
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/conf.py
@@ -0,0 +1,176 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+# Configuration file for the Sphinx documentation builder.
+#
+# This file only contains a selection of the most common options. For a full
+# list see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+
+import os
+import subprocess
+import sys
+
+import pytorch_sphinx_theme
+
+sys.path.insert(0, os.path.abspath('../../'))
+
+# -- Project information -----------------------------------------------------
+
+project = 'MMOCR'
+copyright = '2020-2030, OpenMMLab'
+author = 'OpenMMLab'
+
+# The full version, including alpha/beta/rc tags
+version_file = '../../mmocr/version.py'
+with open(version_file) as f:
+    exec(compile(f.read(), version_file, 'exec'))
+__version__ = locals()['__version__']
+release = __version__
+
+# -- General configuration ---------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.napoleon',
+    'sphinx.ext.viewcode',
+    'sphinx_markdown_tables',
+    'sphinx_copybutton',
+    'myst_parser',
+    'sphinx.ext.intersphinx',
+    'sphinx.ext.autodoc.typehints',
+    'sphinx.ext.autosummary',
+    'sphinx.ext.autosectionlabel',
+    'sphinx_tabs.tabs',
+]
+autodoc_typehints = 'description'
+autodoc_mock_imports = ['mmcv._ext']
+autosummary_generate = True  # Turn on sphinx.ext.autosummary
+
+# Ignore >>> when copying code
+copybutton_prompt_text = r'>>> |\.\.\. '
+copybutton_prompt_is_regexp = True
+
+myst_enable_extensions = ['colon_fence']
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+#
+source_suffix = {
+    '.rst': 'restructuredtext',
+    '.md': 'markdown',
+}
+
+# The master toctree document.
+master_doc = 'index'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+# html_theme = 'sphinx_rtd_theme'
+html_theme = 'pytorch_sphinx_theme'
+html_theme_path = [pytorch_sphinx_theme.get_html_theme_path()]
+html_theme_options = {
+    'logo_url':
+    'https://mmocr.readthedocs.io/en/dev-1.x/',
+    'menu': [
+        {
+            'name':
+            'Tutorial',
+            'url':
+            'https://colab.research.google.com/github/open-mmlab/mmocr/blob/'
+            'dev-1.x/demo/tutorial.ipynb'
+        },
+        {
+            'name': 'GitHub',
+            'url': 'https://github.com/open-mmlab/mmocr'
+        },
+        {
+            'name':
+            'Upstream',
+            'children': [
+                {
+                    'name':
+                    'MMEngine',
+                    'url':
+                    'https://github.com/open-mmlab/mmengine',
+                    'description':
+                    'Foundational library for training deep '
+                    'learning models'
+                },
+                {
+                    'name': 'MMCV',
+                    'url': 'https://github.com/open-mmlab/mmcv',
+                    'description': 'Foundational library for computer vision'
+                },
+                {
+                    'name': 'MMDetection',
+                    'url': 'https://github.com/open-mmlab/mmdetection',
+                    'description': 'Object detection toolbox and benchmark'
+                },
+            ]
+        },
+    ],
+    # Specify the language of shared menu
+    'menu_lang':
+    'en'
+}
+
+language = 'en'
+
+master_doc = 'index'
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+html_css_files = [
+    'https://cdn.datatables.net/1.13.2/css/dataTables.bootstrap5.min.css',
+    'css/readthedocs.css'
+]
+html_js_files = [
+    'https://cdn.datatables.net/1.13.2/js/jquery.dataTables.min.js',
+    'https://cdn.datatables.net/1.13.2/js/dataTables.bootstrap5.min.js',
+    'js/collapsed.js',
+    'js/table.js',
+]
+
+myst_heading_anchors = 4
+
+intersphinx_mapping = {
+    'python': ('https://docs.python.org/3', None),
+    'numpy': ('https://numpy.org/doc/stable', None),
+    'torch': ('https://pytorch.org/docs/stable/', None),
+    'mmcv': ('https://mmcv.readthedocs.io/en/2.x/', None),
+    'mmengine': ('https://mmengine.readthedocs.io/en/latest/', None),
+    'mmdetection': ('https://mmdetection.readthedocs.io/en/dev-3.x/', None),
+}
+
+
+def builder_inited_handler(app):
+    subprocess.run(['./merge_docs.sh'])
+    subprocess.run(['./stats.py'])
+    subprocess.run(['./dataset_zoo.py'])
+    subprocess.run(['./project_zoo.py'])
+
+
+def setup(app):
+    app.connect('builder-inited', builder_inited_handler)
diff --git a/mmocr-dev-1.x/docs/en/contact.md b/mmocr-dev-1.x/docs/en/contact.md
new file mode 100644
index 0000000000000000000000000000000000000000..c8a4321e3b1dd21457c82f8823a0a5c5d71e256e
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/contact.md
@@ -0,0 +1,18 @@
+## Welcome to the OpenMMLab community
+
+Scan the QR code below to follow the OpenMMLab team's [**Zhihu Official Account**](https://www.zhihu.com/people/openmmlab) and join the OpenMMLab team's [**QQ Group**](https://jq.qq.com/?_wv=1027&k=aCvMxdr3), or join the official communication WeChat group by adding the WeChat, or join our [**Slack**](https://join.slack.com/t/mmocrworkspace/shared_invite/zt-1ifqhfla8-yKnLO_aKhVA2h71OrK8GZw)
+
+<div align="center">
+<img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/zhihu_qrcode.jpg" height="400" />  <img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/qq_group_qrcode.jpg" height="400" />  <img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/wechat_qrcode.jpg" height="400" />
+</div>
+
+We will provide you with the OpenMMLab community
+
+- 📢 share the latest core technologies of AI frameworks
+- 💻 Explaining PyTorch common module source Code
+- 📰 News related to the release of OpenMMLab
+- 🚀 Introduction of cutting-edge algorithms developed by OpenMMLab
+  🏃 Get the more efficient answer and feedback
+- 🔥 Provide a platform for communication with developers from all walks of life
+
+The OpenMMLab community looks forward to your participation! 👬
diff --git a/mmocr-dev-1.x/docs/en/dataset_zoo.py b/mmocr-dev-1.x/docs/en/dataset_zoo.py
new file mode 100755
index 0000000000000000000000000000000000000000..733dc5cdaff09922f6a52c3405602dff8e28d011
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/dataset_zoo.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python
+import os
+import os.path as osp
+import re
+
+import yaml
+
+dataset_zoo_path = '../../dataset_zoo'
+datasets = os.listdir(dataset_zoo_path)
+datasets.sort()
+
+table = '# Overview\n'
+table += '## Supported Datasets\n'
+table += '| Dataset Name | Text Detection | Text Recognition | Text Spotting | KIE |\n' \
+         '|--------------|----------------|------------------|---------------|-----|\n'  # noqa: E501
+details = '## Dataset Details\n'
+
+for dataset in datasets:
+    meta = yaml.safe_load(
+        open(osp.join(dataset_zoo_path, dataset, 'metafile.yml')))
+    dataset_name = meta['Name']
+    detail_link = re.sub('[^A-Za-z0-9- ]', '',
+                         dataset_name).replace(' ', '-').lower()
+    paper = meta['Paper']
+    data = meta['Data']
+
+    table += '| [{}](#{}) | {} | {} | {} | {} |\n'.format(
+        dataset,
+        detail_link,
+        '✓' if 'textdet' in data['Tasks'] else '',
+        '✓' if 'textrecog' in data['Tasks'] else '',
+        '✓' if 'textspotting' in data['Tasks'] else '',
+        '✓' if 'kie' in data['Tasks'] else '',
+    )
+
+    details += '### {}\n'.format(dataset_name)
+    details += "> \"{}\", *{}*, {}. [PDF]({})\n\n".format(
+        paper['Title'], paper['Venue'], paper['Year'], paper['URL'])
+
+    # Basic Info
+    details += 'A. Basic Info\n'
+    details += ' - Official Website: [{}]({})\n'.format(
+        dataset, data['Website'])
+    details += ' - Year: {}\n'.format(paper['Year'])
+    details += ' - Language: {}\n'.format(data['Language'])
+    details += ' - Scene: {}\n'.format(data['Scene'])
+    details += ' - Annotation Granularity: {}\n'.format(data['Granularity'])
+    details += ' - Supported Tasks: {}\n'.format(data['Tasks'])
+    details += ' - License: [{}]({})\n'.format(data['License']['Type'],
+                                               data['License']['Link'])
+
+    # Format
+    details += '<details> <summary>B. Annotation Format</summary>\n\n</br>'
+    sample_path = osp.join(dataset_zoo_path, dataset, 'sample_anno.md')
+    if osp.exists(sample_path):
+        with open(sample_path, 'r') as f:
+            samples = f.readlines()
+            samples = ''.join(samples)
+            details += samples
+    details += '</details>\n\n</br>'
+
+    # Reference
+    details += 'C. Reference\n'
+    details += '```bibtex\n{}\n```\n'.format(paper['BibTeX'])
+
+datasetzoo = table + details
+
+with open('user_guides/data_prepare/datasetzoo.md', 'w') as f:
+    f.write(datasetzoo)
diff --git a/mmocr-dev-1.x/docs/en/docutils.conf b/mmocr-dev-1.x/docs/en/docutils.conf
new file mode 100644
index 0000000000000000000000000000000000000000..0c00c84688701117f231fd0c8ec295fb747b7d8f
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/docutils.conf
@@ -0,0 +1,2 @@
+[html writers]
+table_style: colwidths-auto
diff --git a/mmocr-dev-1.x/docs/en/get_started/faq.md b/mmocr-dev-1.x/docs/en/get_started/faq.md
new file mode 100644
index 0000000000000000000000000000000000000000..0c72f3238db0a079edb0236ec54267e759d8da6a
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/get_started/faq.md
@@ -0,0 +1,83 @@
+# FAQ
+
+## General
+
+**Q1** I'm getting the warning like `unexpected key in source state_dict: fc.weight, fc.bias`, is there something wrong?
+
+**A** It's not an error. It occurs because the backbone network is pretrained on image classification tasks, where the last fc layer is required to generate the classification output. However, the fc layer is no longer needed when the backbone network is used to extract features in downstream tasks, and therefore these weights can be safely skipped when loading the checkpoint.
+
+**Q2** MMOCR terminates with an error: `shapely.errors.TopologicalError: The operation 'GEOSIntersection_r' could not be performed. Likely cause is invalidity of the geometry`. How could I fix it?
+
+**A** This error occurs because of some invalid polygons (e.g., polygons with self-intersections) existing in the dataset or generated by some non-rigorous data transforms. These polygons can be fixed by adding `FixInvalidPolygon` transform after the transform likely to introduce invalid polygons. For example, a common practice is to append it after `LoadOCRAnnotations` in both train and test pipeline. The resulting pipeline should look like:
+
+```python
+train_pipeline = [
+    ...
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='FixInvalidPolygon', min_poly_points=4),
+    ...
+]
+```
+
+In practice, we find that Totaltext contains some invalid polygons and using `FixInvalidPolygon` is a must. [Here](https://github.com/open-mmlab/mmocr/blob/27b6a68586b9a040678fe083bcf60662ae1b9261/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_totaltext.py) is an example config.
+
+**Q3** Getting `libpng warning: iCCP: known incorrect sRGB profile` when loading images with `cv2` backend.
+
+**A** This is a warning from `libpng` and it is safe to ignore. It is caused by the `icc` profile in the image. You can use `pillow` backend to avoid this warning:
+
+```python
+train_pipeline = [
+    dict(
+        type='LoadImageFromFile',
+        imdecode_backend='pillow'),
+    ...
+]
+```
+
+## Text Recognition
+
+**Q1** What are the steps to train text recognition models with my own dictionary?
+
+**A** In MMOCR 1.0, you only need to modify the config and point `Dictionary` to your custom dict file. For example, if you want to train SAR model (https://github.com/open-mmlab/mmocr/blob/75c06d34bbc01d3d11dfd7afc098b6cdeee82579/configs/textrecog/sar/sar_resnet31_parallel-decoder_5e_st-sub_mj-sub_sa_real.py) with your own dictionary placed at `/my/dict.txt`, you can modify `dictionary.dict_file` term in [base config](https://github.com/open-mmlab/mmocr/blob/75c06d34bbc01d3d11dfd7afc098b6cdeee82579/configs/textrecog/sar/_base_sar_resnet31_parallel-decoder.py#L1) to:
+
+```python
+dictionary = dict(
+    type='Dictionary',
+    dict_file='/my/dict.txt',
+    with_start=True,
+    with_end=True,
+    same_start_end=True,
+    with_padding=True,
+    with_unknown=True)
+```
+
+Now you are good to go. You can also find more information in [Dictionary API](https://mmocr.readthedocs.io/en/dev-1.x/api/generated/mmocr.models.common.Dictionary.html#mmocr.models.common.Dictionary).
+
+**Q2** How to properly visualize non-English characters?
+
+**A** You can customize `font_families` or `font_properties` in visualizer. For example, to visualize Korean:
+
+`configs/textrecog/_base_/default_runtime.py`:
+
+```python
+visualizer = dict(
+    type='TextRecogLocalVisualizer',
+    name='visualizer',
+    font_families='NanumGothic', # new feature
+    vis_backends=vis_backends)
+```
+
+It's also fine to pass the font path to visualizer:
+
+```python
+visualizer = dict(
+    type='TextRecogLocalVisualizer',
+    name='visualizer',
+    font_properties='path/to/font_file',
+    vis_backends=vis_backends)
+```
diff --git a/mmocr-dev-1.x/docs/en/get_started/install.md b/mmocr-dev-1.x/docs/en/get_started/install.md
new file mode 100644
index 0000000000000000000000000000000000000000..e892ba37272903e853a60cf7d7a2f0c8ee0cdc05
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/get_started/install.md
@@ -0,0 +1,244 @@
+# Installation
+
+## Prerequisites
+
+- Linux | Windows | macOS
+- Python 3.7
+- PyTorch 1.6 or higher
+- torchvision 0.7.0
+- CUDA 10.1
+- NCCL 2
+- GCC 5.4.0 or higher
+
+## Environment Setup
+
+```{note}
+If you are experienced with PyTorch and have already installed it, just skip this part and jump to the [next section](#installation-steps). Otherwise, you can follow these steps for the preparation.
+```
+
+**Step 0.** Download and install Miniconda from the [official website](https://docs.conda.io/en/latest/miniconda.html).
+
+**Step 1.** Create a conda environment and activate it.
+
+```shell
+conda create --name openmmlab python=3.8 -y
+conda activate openmmlab
+```
+
+**Step 2.** Install PyTorch following [official instructions](https://pytorch.org/get-started/locally/), e.g.
+
+````{tabs}
+
+```{code-tab} shell GPU Platform
+conda install pytorch torchvision -c pytorch
+```
+
+```{code-tab} shell CPU Platform
+conda install pytorch torchvision cpuonly -c pytorch
+```
+
+````
+
+## Installation Steps
+
+We recommend that users follow our best practices to install MMOCR. However, the whole process is highly customizable. See [Customize Installation](#customize-installation) section for more information.
+
+### Best Practices
+
+**Step 0.** Install  [MMEngine](https://github.com/open-mmlab/mmengine), [MMCV](https://github.com/open-mmlab/mmcv) and [MMDetection](https://github.com/open-mmlab/mmdetection) using [MIM](https://github.com/open-mmlab/mim).
+
+```shell
+pip install -U openmim
+mim install mmengine
+mim install mmcv
+mim install mmdet
+```
+
+**Step 1.** Install MMOCR.
+
+If you wish to run and develop MMOCR directly, install it from **source** (recommended).
+
+If you use MMOCR as a dependency or third-party package, install it via **MIM**.
+
+`````{tabs}
+
+````{group-tab} Install from Source
+
+```shell
+
+git clone https://github.com/open-mmlab/mmocr.git
+cd mmocr
+pip install -v -e .
+# "-v" increases pip's verbosity.
+# "-e" means installing the project in editable mode,
+# That is, any local modifications on the code will take effect immediately.
+
+```
+
+````
+
+````{group-tab} Install via MIM
+
+```shell
+
+mim install mmocr
+
+```
+
+````
+
+`````
+
+**Step 2. (Optional)** If you wish to use any transform involving `albumentations` (For example, `Albu` in ABINet's pipeline), or any dependency for building documentation or running unit tests, please install the dependency using the following command:
+
+`````{tabs}
+
+````{group-tab} Install from Source
+
+```shell
+# install albu
+pip install -r requirements/albu.txt
+# install the dependencies for building documentation and running unit tests
+pip install -r requirements.txt
+```
+
+````
+
+````{group-tab} Install via MIM
+
+```shell
+pip install albumentations>=1.1.0 --no-binary qudida,albumentations
+```
+
+````
+
+`````
+
+```{note}
+
+We recommend checking the environment after installing `albumentations` to
+ensure that `opencv-python` and `opencv-python-headless` are not installed together, otherwise it might cause unexpected issues. If that's unfortunately the case, please uninstall `opencv-python-headless` to make sure MMOCR's visualization utilities can work.
+
+Refer
+to [albumentations's official documentation](https://albumentations.ai/docs/getting_started/installation/#note-on-opencv-dependencies) for more details.
+
+```
+
+### Verify the installation
+
+You may verify the installation via this inference demo.
+
+`````{tabs}
+
+````{tab} Python
+
+Run the following code in a Python interpreter:
+
+```python
+>>> from mmocr.apis import MMOCRInferencer
+>>> ocr = MMOCRInferencer(det='DBNet', rec='CRNN')
+>>> ocr('demo/demo_text_ocr.jpg', show=True, print_result=True)
+```
+````
+
+````{tab} Shell
+
+If you installed MMOCR from source, you can run the following in MMOCR's root directory:
+
+```shell
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec CRNN --show --print-result
+```
+````
+
+`````
+
+You should be able to see a pop-up image and the inference result printed out in the console upon successful verification.
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/24622904/187825445-d30cbfa6-5549-4358-97fe-245f08f4ed94.jpg" height="250"/>
+</div>
+<br />
+
+```bash
+# Inference result
+{'predictions': [{'rec_texts': ['cbanks', 'docecea', 'grouf', 'pwate', 'chobnsonsg', 'soxee', 'oeioh', 'c', 'sones', 'lbrandec', 'sretalg', '11', 'to8', 'round', 'sale', 'year',
+'ally', 'sie', 'sall'], 'rec_scores': [...], 'det_polygons': [...], 'det_scores':
+[...]}]}
+```
+
+```{note}
+If you are running MMOCR on a server without GUI or via SSH tunnel with X11 forwarding disabled, you may not see the pop-up window.
+```
+
+## Customize Installation
+
+### CUDA versions
+
+When installing PyTorch, you need to specify the version of CUDA. If you are not clear on which to choose, follow our recommendations:
+
+- For Ampere-based NVIDIA GPUs, such as GeForce 30 series and NVIDIA A100, CUDA 11 is a must.
+- For older NVIDIA GPUs, CUDA 11 is backward compatible, but CUDA 10.2 offers better compatibility and is more lightweight.
+
+Please make sure the GPU driver satisfies the minimum version requirements. See [this table](https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html#cuda-major-component-versions__table-cuda-toolkit-driver-versions) for more information.
+
+```{note}
+Installing CUDA runtime libraries is enough if you follow our best practices, because no CUDA code will be compiled locally. However if you hope to compile MMCV from source or develop other CUDA operators, you need to install the complete CUDA toolkit from NVIDIA's [website](https://developer.nvidia.com/cuda-downloads), and its version should match the CUDA version of PyTorch. i.e., the specified version of cudatoolkit in `conda install` command.
+```
+
+### Install MMCV without MIM
+
+MMCV contains C++ and CUDA extensions, thus depending on PyTorch in a complex way. MIM solves such dependencies automatically and makes the installation easier. However, it is not a must.
+
+To install MMCV with pip instead of MIM, please follow [MMCV installation guides](https://mmcv.readthedocs.io/en/latest/get_started/installation.html). This requires manually specifying a find-url based on PyTorch version and its CUDA version.
+
+For example, the following command install mmcv-full built for PyTorch 1.10.x and CUDA 11.3.
+
+```shell
+pip install `mmcv>=2.0.0rc1`  -f https://download.openmmlab.com/mmcv/dist/cu113/torch1.10/index.html
+```
+
+### Install on CPU-only platforms
+
+MMOCR can be built for CPU-only environment. In CPU mode you can train (requires MMCV version >= 1.4.4), test or inference a model.
+
+However, some functionalities are gone in this mode:
+
+- Deformable Convolution
+- Modulated Deformable Convolution
+- ROI pooling
+- SyncBatchNorm
+
+If you try to train/test/inference a model containing above ops, an error will be raised.
+The following table lists affected algorithms.
+
+|                        Operator                         |                          Model                          |
+| :-----------------------------------------------------: | :-----------------------------------------------------: |
+| Deformable Convolution/Modulated Deformable Convolution | DBNet (r50dcnv2), DBNet++ (r50dcnv2), FCENet (r50dcnv2) |
+|                      SyncBatchNorm                      |                      PANet, PSENet                      |
+
+### Using MMOCR with Docker
+
+We provide a [Dockerfile](https://github.com/open-mmlab/mmocr/blob/master/docker/Dockerfile) to build an image.
+
+```shell
+# build an image with PyTorch 1.6, CUDA 10.1
+docker build -t mmocr docker/
+```
+
+Run it with
+
+```shell
+docker run --gpus all --shm-size=8g -it -v {DATA_DIR}:/mmocr/data mmocr
+```
+
+## Dependency on MMEngine, MMCV & MMDetection
+
+MMOCR has different version requirements on MMEngine, MMCV and MMDetection at each release to guarantee the implementation correctness. Please refer to the table below and ensure the package versions fit the requirement.
+
+| MMOCR          | MMEngine                    | MMCV                       | MMDetection                 |
+| -------------- | --------------------------- | -------------------------- | --------------------------- |
+| dev-1.x        | 0.7.1 \<= mmengine \< 1.0.0 | 2.0.0rc4 \<= mmcv \< 2.1.0 | 3.0.0rc5 \<= mmdet \< 3.1.0 |
+| 1.0.0          | 0.7.1 \<= mmengine \< 1.0.0 | 2.0.0rc4 \<= mmcv \< 2.1.0 | 3.0.0rc5 \<= mmdet \< 3.1.0 |
+| 1.0.0rc6       | 0.6.0 \<= mmengine \< 1.0.0 | 2.0.0rc4 \<= mmcv \< 2.1.0 | 3.0.0rc5 \<= mmdet \< 3.1.0 |
+| 1.0.0rc\[4-5\] | 0.1.0 \<= mmengine \< 1.0.0 | 2.0.0rc1 \<= mmcv \< 2.1.0 | 3.0.0rc0 \<= mmdet \< 3.1.0 |
+| 1.0.0rc\[0-3\] | 0.0.0 \<= mmengine \< 0.2.0 | 2.0.0rc1 \<= mmcv \< 2.1.0 | 3.0.0rc0 \<= mmdet \< 3.1.0 |
diff --git a/mmocr-dev-1.x/docs/en/get_started/overview.md b/mmocr-dev-1.x/docs/en/get_started/overview.md
new file mode 100644
index 0000000000000000000000000000000000000000..7bbb67b142750fb1d148b44c0f9d79d605a061ad
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/get_started/overview.md
@@ -0,0 +1,20 @@
+# Overview
+
+MMOCR is an open source toolkit based on [PyTorch](https://pytorch.org/) and [MMDetection](https://github.com/open-mmlab/mmdetection), supporting numerous OCR-related models, including text detection, text recognition, and key information extraction. In addition, it supports widely-used academic datasets and provides many useful tools, assisting users in exploring various aspects of models and datasets and implementing high-quality algorithms. Generally, it has the following features.
+
+- **One-stop, Multi-model**: MMOCR supports various OCR-related tasks and implements the latest models for text detection, recognition, and key information extraction.
+- **Modular Design**: MMOCR's modular design allows users to define and reuse modules in the model on demand.
+- **Various Useful Tools**: MMOCR provides a number of analysis tools, including visualizers, validation scripts, evaluators, etc., to help users troubleshoot, finetune or compare models.
+- **Powered by [OpenMMLab](https://openmmlab.com/)**: Like other algorithm libraries in OpenMMLab family, MMOCR follows OpenMMLab's rigorous development guidelines and interface conventions, significantly reducing the learning cost of users familiar with other projects in OpenMMLab family. In addition, benefiting from the unified interfaces among OpenMMLab, you can easily call the models implemented in other OpenMMLab projects (e.g. MMDetection) in MMOCR, facilitating cross-domain research and real-world applications.
+
+Together with the release of OpenMMLab 2.0, MMOCR now also comes to its 1.0.0 version, which has made significant BC-breaking changes, resulting in less code redundancy, higher code efficiency and an overall more systematic and consistent design.
+
+Considering that there are some backward incompatible changes in this version compared to 0.x, we have prepared a detailed [migration guide](../migration/overview.md). It lists all the changes made in the new version and the steps required to migrate. We hope this guide can help users familiar with the old framework to complete the upgrade as quickly as possible. Though this may take some time, we believe that the new features brought by MMOCR and the OpenMMLab ecosystem will make it all worthwhile. 😊
+
+Next, please read the section according to your actual needs.
+
+- We recommend that beginners go through [Quick Run](quick_run.md) to get familiar with MMOCR and master the usage of MMOCR by reading the examples in **User Guides**.
+- Intermediate and advanced developers are suggested to learn the background, conventions, and recommended implementations of each component from **Basic Concepts**.
+- Read our [FAQ](faq.md) to find answers to frequently asked questions.
+- If you can't find the answers you need in the documentation, feel free to raise an [issue](https://github.com/open-mmlab/mmocr/issues).
+- Everyone is welcome to be a contributor! Read the [contribution guide](../notes/contribution_guide.md) to learn how to contribute to MMOCR!
diff --git a/mmocr-dev-1.x/docs/en/get_started/quick_run.md b/mmocr-dev-1.x/docs/en/get_started/quick_run.md
new file mode 100644
index 0000000000000000000000000000000000000000..5c5f01a4491fbbc64e2c4bbc63bf69b1d7f949d4
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/get_started/quick_run.md
@@ -0,0 +1,203 @@
+# Quick Run
+
+This chapter will take you through the basic functions of MMOCR. And we assume you [installed MMOCR from source](install.md#best-practices). You may check out the [tutorial notebook](https://colab.research.google.com/github/open-mmlab/mmocr/blob/dev-1.x/demo/tutorial.ipynb) for how to perform inference, training and testing interactively.
+
+## Inference
+
+Run the following in MMOCR's root directory:
+
+```shell
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec CRNN --show --print-result
+```
+
+You should be able to see a pop-up image and the inference result printed out in the console.
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/24622904/187825445-d30cbfa6-5549-4358-97fe-245f08f4ed94.jpg" height="250"/>
+</div>
+<br />
+
+```bash
+# Inference result
+{'predictions': [{'rec_texts': ['cbanks', 'docecea', 'grouf', 'pwate', 'chobnsonsg', 'soxee', 'oeioh', 'c', 'sones', 'lbrandec', 'sretalg', '11', 'to8', 'round', 'sale', 'year',
+'ally', 'sie', 'sall'], 'rec_scores': [...], 'det_polygons': [...], 'det_scores':
+[...]}]}
+```
+
+```{note}
+If you are running MMOCR on a server without GUI or via SSH tunnel with X11 forwarding disabled, you may not see the pop-up window.
+```
+
+A detailed description of MMOCR's inference interface can be found [here](../user_guides/inference.md)
+
+In addition to using our well-provided pre-trained models, you can also train models on your own datasets. In the next section, we will take you through the basic functions of MMOCR by training DBNet on the mini [ICDAR 2015](https://rrc.cvc.uab.es/?ch=4&com=downloads) dataset as an example.
+
+## Prepare a Dataset
+
+Since the variety of OCR dataset formats are not conducive to either switching or joint training of multiple datasets, MMOCR proposes a uniform [data format](../user_guides/dataset_prepare.md), and provides [dataset preparer](../user_guides/data_prepare/dataset_preparer.md) for commonly used OCR datasets. Usually, to use those datasets in MMOCR, you just need to follow the steps to get them ready for use.
+
+```{note}
+But here, efficiency means everything.
+```
+
+Here, we have prepared a lite version of ICDAR 2015 dataset for demonstration purposes. Download our pre-prepared [zip](https://download.openmmlab.com/mmocr/data/icdar2015/mini_icdar2015.tar.gz) and extract it to the `data/` directory under mmocr to get our prepared image and annotation file.
+
+```Bash
+wget https://download.openmmlab.com/mmocr/data/icdar2015/mini_icdar2015.tar.gz
+mkdir -p data/
+tar xzvf mini_icdar2015.tar.gz -C data/
+```
+
+## Modify the Config
+
+Once the dataset is prepared, we will then specify the location of the training set and the training parameters by modifying the config file.
+
+In this example, we will train a DBNet using resnet18 as its backbone. Since MMOCR already has a config file for the full ICDAR 2015 dataset (`configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py`), we just need to make some modifications on top of it.
+
+We first need to modify the path to the dataset. In this config, most of the key config files are imported in `_base_`, such as the database configuration from `configs/textdet/_base_/datasets/icdar2015.py`. Open that file and replace the path pointed to by `icdar2015_textdet_data_root` in the first line with:
+
+```Python
+icdar2015_textdet_data_root = 'data/mini_icdar2015'
+```
+
+Also, because of the reduced dataset size, we have to reduce the number of training epochs to 400 accordingly, shorten the validation interval as well as the weight storage interval to 10 rounds, and drop the learning rate decay strategy. The following lines of configuration can be directly put into `configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py` to take effect.
+
+```Python
+# Save checkpoints every 10 epochs, and only keep the latest checkpoint
+default_hooks = dict(
+    checkpoint=dict(
+        type='CheckpointHook',
+        interval=10,
+        max_keep_ckpts=1,
+    ))
+# Set the maximum number of epochs to 400, and validate the model every 10 epochs
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=400, val_interval=10)
+# Fix learning rate as a constant
+param_scheduler = [
+    dict(type='ConstantLR', factor=1.0),
+]
+```
+
+Here, we have rewritten the corresponding parameters in the base configuration directly through the inheritance ({external+mmengine:doc}`MMEngine: Config <advanced_tutorials/config>`) mechanism of the config. The original fields are distributed in `configs/textdet/_base_/schedules/schedule_sgd_1200e.py` and `configs/textdet/_base_/default_runtime.py`.
+
+```{note}
+For a more detailed description of config, please refer to [here](../user_guides/config.md).
+```
+
+## Browse the Dataset
+
+Before we start the training, we can also visualize the image processed by training-time [data transforms](../basic_concepts/transforms.md). It's quite simple: pass the config file we need to visualize into the [browse_dataset.py](/tools/analysis_tools/browse_dataset.py) script.
+
+```Bash
+python tools/analysis_tools/browse_dataset.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
+```
+
+The transformed images and annotations will be displayed one by one in a pop-up window.
+
+<center class="half">
+    <img src="https://user-images.githubusercontent.com/24622904/187611542-01e9aa94-fc12-4756-964b-a0e472522a3a.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611555-3f5ea616-863d-4538-884f-bccbebc2f7e7.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611581-88be3970-fbfe-4f62-8cdf-7a8a7786af29.jpg" width="250"/>
+</center>
+
+```{note}
+For details on the parameters and usage of this script, please refer to [here](../user_guides/useful_tools.md).
+```
+
+```{tip}
+In addition to satisfying our curiosity, visualization can also help us check the parts that may affect the model's performance before training, such as problems in configs, datasets and data transforms.
+```
+
+## Training
+
+Start the training by running the following command:
+
+```Bash
+python tools/train.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
+```
+
+Depending on the system environment, MMOCR will automatically use the best device for training. If a GPU is available, a single GPU training will be started by default. When you start to see the output of the losses, you have successfully started the training.
+
+```Bash
+2022/08/22 18:42:22 - mmengine - INFO - Epoch(train) [1][5/7]  lr: 7.0000e-03  memory: 7730  data_time: 0.4496  loss_prob: 14.6061  loss_thr: 2.2904  loss_db: 0.9879  loss: 17.8843  time: 1.8666
+2022/08/22 18:42:24 - mmengine - INFO - Exp name: dbnet_resnet18_fpnc_1200e_icdar2015
+2022/08/22 18:42:28 - mmengine - INFO - Epoch(train) [2][5/7]  lr: 7.0000e-03  memory: 6695  data_time: 0.2052  loss_prob: 6.7840  loss_thr: 1.4114  loss_db: 0.9855  loss: 9.1809  time: 0.7506
+2022/08/22 18:42:29 - mmengine - INFO - Exp name: dbnet_resnet18_fpnc_1200e_icdar2015
+2022/08/22 18:42:33 - mmengine - INFO - Epoch(train) [3][5/7]  lr: 7.0000e-03  memory: 6690  data_time: 0.2101  loss_prob: 3.0700  loss_thr: 1.1800  loss_db: 0.9967  loss: 5.2468  time: 0.6244
+2022/08/22 18:42:33 - mmengine - INFO - Exp name: dbnet_resnet18_fpnc_1200e_icdar2015
+```
+
+Without extra configurations, model weights will be saved to `work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/`, while the logs will be stored in `work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/TIMESTAMP/`. Next, we just need to wait with some patience for training to finish.
+
+```{note}
+For advanced usage of training, such as CPU training, multi-GPU training, and cluster training, please refer to [Training and Testing](../user_guides/train_test.md).
+```
+
+## Testing
+
+After 400 epochs, we observe that DBNet performs best in the last epoch, with `hmean` reaching 60.86 (You may see a different result):
+
+```Bash
+08/22 19:24:52 - mmengine - INFO - Epoch(val) [400][100/100]  icdar/precision: 0.7285  icdar/recall: 0.5226  icdar/hmean: 0.6086
+```
+
+```{note}
+It may not have been trained to be optimal, but it is sufficient for a demo.
+```
+
+However, this value only reflects the performance of DBNet on the mini ICDAR 2015 dataset. For a comprehensive evaluation, we also need to see how it performs on out-of-distribution datasets. For example, `tests/data/det_toy_dataset` is a very small real dataset that we can use to verify the actual performance of DBNet.
+
+Before testing, we also need to make some changes to the location of the dataset. Open `configs/textdet/_base_/datasets/icdar2015.py` and change `data_root` of `icdar2015_textdet_test` to `tests/data/det_toy_dataset`:
+
+```Python
+# ...
+icdar2015_textdet_test = dict(
+    type='OCRDataset',
+    data_root='tests/data/det_toy_dataset',
+    #  ...
+    )
+```
+
+Start testing:
+
+```Bash
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/epoch_400.pth
+```
+
+And get the outputs like:
+
+```Bash
+08/21 21:45:59 - mmengine - INFO - Epoch(test) [5/10]    memory: 8562
+08/21 21:45:59 - mmengine - INFO - Epoch(test) [10/10]    eta: 0:00:00  time: 0.4893  data_time: 0.0191  memory: 283
+08/21 21:45:59 - mmengine - INFO - Evaluating hmean-iou...
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.30, recall: 0.6190, precision: 0.4815, hmean: 0.5417
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.40, recall: 0.6190, precision: 0.5909, hmean: 0.6047
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.50, recall: 0.6190, precision: 0.6842, hmean: 0.6500
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.60, recall: 0.6190, precision: 0.7222, hmean: 0.6667
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.70, recall: 0.3810, precision: 0.8889, hmean: 0.5333
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.80, recall: 0.0000, precision: 0.0000, hmean: 0.0000
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.90, recall: 0.0000, precision: 0.0000, hmean: 0.0000
+08/21 21:45:59 - mmengine - INFO - Epoch(test) [10/10]  icdar/precision: 0.7222  icdar/recall: 0.6190  icdar/hmean: 0.6667
+```
+
+The model achieves an hmean of 0.6667 on this dataset.
+
+```{note}
+For advanced usage of testing, such as CPU testing, multi-GPU testing, and cluster testing, please refer to [Training and Testing](../user_guides/train_test.md).
+```
+
+## Visualize the Outputs
+
+We can also visualize its prediction output in `test.py`. You can open a pop-up visualization window with the `show` parameter; and can also specify the directory where the prediction result images are exported with the `show-dir` parameter.
+
+```Bash
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/epoch_400.pth --show-dir imgs/
+```
+
+The true labels and predicted values are displayed in a tiled fashion in the visualization results. The green boxes in the left panel indicate the true labels and the red boxes in the right panel indicate the predicted values.
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/187423562-6a85e209-4b12-46ee-8a41-5c67b1ba83f9.png"/><br>
+</div>
+
+```{note}
+For a description of more visualization features, see [here](../user_guides/visualization.md).
+```
diff --git a/mmocr-dev-1.x/docs/en/index.rst b/mmocr-dev-1.x/docs/en/index.rst
new file mode 100644
index 0000000000000000000000000000000000000000..123b9b933e987b201f9265baac0f1a0225e38f8f
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/index.rst
@@ -0,0 +1,113 @@
+Welcome to MMOCR's documentation!
+=======================================
+
+You can switch between English and Chinese in the lower-left corner of the layout.
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Get Started
+
+   get_started/overview.md
+   get_started/install.md
+   get_started/quick_run.md
+   get_started/faq.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: User Guides
+
+   user_guides/inference.md
+   user_guides/config.md
+   user_guides/dataset_prepare.md
+   user_guides/train_test.md
+   user_guides/visualization.md
+   user_guides/useful_tools.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Basic Concepts
+
+   basic_concepts/structures.md
+   basic_concepts/transforms.md
+   basic_concepts/evaluation.md
+   basic_concepts/datasets.md
+   basic_concepts/overview.md
+   basic_concepts/data_flow.md
+   basic_concepts/models.md
+   basic_concepts/visualizers.md
+   basic_concepts/convention.md
+   basic_concepts/engine.md
+
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Dataset Zoo
+
+   user_guides/data_prepare/datasetzoo.md
+   user_guides/data_prepare/dataset_preparer.md
+   user_guides/data_prepare/det.md
+   user_guides/data_prepare/recog.md
+   user_guides/data_prepare/kie.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Model Zoo
+
+   modelzoo.md
+   projectzoo.md
+   backbones.md
+   textdet_models.md
+   textrecog_models.md
+   kie_models.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Notes
+
+   notes/branches.md
+   notes/contribution_guide.md
+   notes/changelog.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Migrating from MMOCR 0.x
+
+   migration/overview.md
+   migration/news.md
+   migration/branches.md
+   migration/code.md
+   migration/dataset.md
+   migration/model.md
+   migration/transforms.md
+
+.. toctree::
+   :maxdepth: 1
+   :caption: API Reference
+
+   mmocr.apis <api/apis>
+   mmocr.structures <api/structures>
+   mmocr.datasets <api/datasets>
+   mmocr.transforms <api/transforms>
+   mmocr.models <api/models>
+   mmocr.evaluation <api/evaluation>
+   mmocr.visualization <api/visualization>
+   mmocr.engine <api/engine>
+   mmocr.utils <api/utils>
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contact US
+
+   contact.md
+
+.. toctree::
+   :caption: Switch Language
+
+   switch_language.md
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`search`
diff --git a/mmocr-dev-1.x/docs/en/make.bat b/mmocr-dev-1.x/docs/en/make.bat
new file mode 100644
index 0000000000000000000000000000000000000000..8a3a0e25b49a52ade52c4f69ddeb0bc3d12527ff
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/make.bat
@@ -0,0 +1,36 @@
+@ECHO OFF
+
+pushd %~dp0
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set SOURCEDIR=.
+set BUILDDIR=_build
+
+if "%1" == "" goto help
+
+%SPHINXBUILD% >NUL 2>NUL
+if errorlevel 9009 (
+	echo.
+	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+	echo.installed, then set the SPHINXBUILD environment variable to point
+	echo.to the full path of the 'sphinx-build' executable. Alternatively you
+	echo.may add the Sphinx directory to PATH.
+	echo.
+	echo.If you don't have Sphinx installed, grab it from
+	echo.http://sphinx-doc.org/
+	exit /b 1
+)
+
+
+%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+goto end
+
+:help
+%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+
+:end
+popd
diff --git a/mmocr-dev-1.x/docs/en/merge_docs.sh b/mmocr-dev-1.x/docs/en/merge_docs.sh
new file mode 100755
index 0000000000000000000000000000000000000000..9835eab21fc3dc8a2de63332148dcd0b4f2fa6a2
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/merge_docs.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# gather models
+sed -e '$a\\n' -s ../../configs/kie/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Key Information Extraction Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >kie_models.md
+sed -e '$a\\n' -s ../../configs/textdet/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Text Detection Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textdet_models.md
+sed -e '$a\\n' -s ../../configs/textrecog/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Text Recognition Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textrecog_models.md
+sed -e '$a\\n' -s ../../configs/backbone/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# BackBones' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >backbones.md
diff --git a/mmocr-dev-1.x/docs/en/migration/branches.md b/mmocr-dev-1.x/docs/en/migration/branches.md
new file mode 100644
index 0000000000000000000000000000000000000000..d5b02ae2461f2e743d5323d9f1978c622740ef86
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/migration/branches.md
@@ -0,0 +1,38 @@
+# Branch Migration
+
+At an earlier stage, MMOCR had three branches: `main`, `1.x`, and `dev-1.x`. Some of these branches have been renamed together with the official MMOCR 1.0.0 release, and here is the changelog.
+
+- `main` branch housed the code for MMOCR 0.x (e.g., v0.6.3). Now it has been renamed to `0.x`.
+- `1.x` contained the code for MMOCR 1.x (e.g., 1.0.0rc6). Now it is an alias of `main`, and will be removed in mid 2023.
+- `dev-1.x` was the development branch for MMOCR 1.x. Now it remains unchanged.
+
+For more information about the branches, check out [branches](../notes/branches.md).
+
+## Resolving Conflicts When Upgrading the `main` branch
+
+For users who wish to upgrade from the old `main` branch that has the code for MMOCR 0.x, the non-fast-forwarded-able nature of the upgrade may cause conflicts. To resolve these conflicts, follow the steps below:
+
+1. Commit all the changes you have on `main` if you have any. Backup your current `main` branch by creating a copy.
+
+   ```bash
+   git checkout main
+   git add --all
+   git commit -m 'backup'
+   git checkout -b main_backup
+   ```
+
+2. Fetch the latest changes from the remote repository.
+
+   ```bash
+   git remote add openmmlab git@github.com:open-mmlab/mmocr.git
+   git fetch openmmlab
+   ```
+
+3. Reset the `main` branch to the latest `main` branch on the remote repository by running `git reset --hard openmmlab/main`.
+
+   ```bash
+   git checkout main
+   git reset --hard openmmlab/main
+   ```
+
+By following these steps, you can successfully upgrade your `main` branch.
diff --git a/mmocr-dev-1.x/docs/en/migration/code.md b/mmocr-dev-1.x/docs/en/migration/code.md
new file mode 100644
index 0000000000000000000000000000000000000000..31b84b4985bd6690a7b79a0fce4463f0c7d26f73
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/migration/code.md
@@ -0,0 +1,151 @@
+# Code Migration
+
+MMOCR has been designed in a way that there are a lot of shortcomings in the initial version in order to balance the tasks of text detection, recognition and key information extraction. In this 1.0 release, MMOCR synchronizes its new model architecture to align as much as possible with the overall OpenMMLab design and to achieve structural uniformity within the algorithm library. Although this upgrade is not fully backward compatible, we summarize the changes that may be of interest to developers for those who need them.
+
+## Fundamental Changes
+
+Functional boundaries of modules has not been clearly defined in MMOCR 0.x. In MMOCR 1.0, we address this issue by refactoring the design of model modules. Here are some major changes in 1.0:
+
+- MMOCR 1.0 no longer supports named entity recognition tasks since it's not in the scope of OCR.
+
+- The module that computes the loss in a model is named as *Module Loss*, which is also responsible for the conversion of gold annotations into loss targets. Another module, *Postprocessor*, is responsible for decoding the model raw output into `DataSample` for the corresponding task at prediction time.
+
+- The inputs of all models are now organized as a dictionary that consists of two keys: `inputs`, containing the original features of the images, and `List[DataSample]`, containing the meta-information of the images. At training time, the output format of a model is standardized to a dictionary containing the loss tensors. Similarly, a model generates a sequence of `DataSample`s containing the prediction outputs in testing.
+
+- In MMOCR 0.x, the majority of classes named `XXLoss` have the implementations closely bound to the corresponding model, while their names made users hard to tell them apart from other generic losses like `DiceLoss`. In 1.0, they are renamed to the form `XXModuleLoss`. (e.g. `DBLoss` was renamed to `DBModuleLoss`). The key to their configurations in config files is also changed from `loss` to `module_loss`.
+
+- The names of generic loss classes that are not related to the model implementation are kept as `XXLoss`. (e.g. [`MaskedBCELoss`](mmocr.models.common.losses.MaskedBCELoss)) They are all placed under `mmocr/models/common/losses`.
+
+- Changes under `mmocr/models/common/losses`: `DiceLoss` is renamed to [`MaskedDiceLoss`](mmocr.models.common.losses.MaskedDiceLoss). `FocalLoss` has been removed.
+
+- MMOCR 1.0 adds a *Dictionary* module which originates from *label converter*. It is used in text recognition and key information extraction tasks.
+
+## Text Detection Models
+
+### Key Changes (TL;DR)
+
+- The model weights from MMOCR 0.x still works in the 1.0, but the fields starting with `bbox_head` in the state dict `state_dict` need to be renamed to `det_head`.
+
+- `XXTargets` transforms, which were responsible for genearting detection targets, have been merged into `XXModuleLoss`.
+
+### SingleStageTextDetector
+
+- The original inheritance chain was `mmdet.BaseDetector->SingleStageDetector->SingleStageTextDetector`. Now `SingleStageTextDetector` is directly inherited from `BaseDetector` without extra dependency on MMDetection, and `SingleStageDetector` is deleted.
+
+- `bbox_head` is renamed to `det_head`.
+
+- `train_cfg`, `test_cfg` and `pretrained` fields are removed.
+
+- `forward_train()` and `simple_test()` are refactored to `loss()` and `predict()`. The part of `simple_test()` that was responsible for splitting the raw output of the model and feeding it into `head.get_bounary()` is integrated into `BaseTextDetPostProcessor`.
+
+- `TextDetectorMixin` has been removed since its implementation overlaps with `TextDetLocalVisualizer`.
+
+### Head
+
+- `HeadMixin`, the base class that `XXXHead` had to inherit from in version 0.x, has been replaced by `BaseTextDetHead`. `get_boundary()` and `resize_boundary()` are now rewritten as `__call__()` and `rescale()`  in `BaseTextDetPostProcessor`.
+
+### ModuleLoss
+
+- Data transforms `XXXTargets` in text detection tasks are all moved to `XXXModuleLoss._get_target_single()`. Target-related configurations are no longer specified in the data pipeline but in `XXXLoss` instead.
+
+### Postprocessor
+
+- The logic in the original `XXXPostprocessor.__call__()` are transferred to the refactored `XXXPostprocessor.get_text_instances()`.
+
+- `BasePostprocessor` is refactored to `BaseTextDetPostProcessor`. This base class splits and processes the model output predictions one by one and supports automatic scaling of the output polygon or bounding box based on `scale_factor`.
+
+## Text Recognition
+
+### Key Changes (TL;DR)
+
+- Due to the change of the character order and some bugs in the model architecture being fixed, the recognition model weights in 0.x can no longer be directly used in 1.0. We will provide a migration script and tutorial for those who need it.
+
+- The support of SegOCR has been removed. TPS-CRNN will still be supported in a later version.
+
+- Test time augmentation will be supported in the upcoming release.
+
+- *Label converter* module has been removed and its functions have been split into *Dictionary*, *ModuleLoss* and *Postprocessor*.
+
+- The definition of `max_seq_len` has been unified and now it represents the original output length of the model.
+
+### Label Converter
+
+- The original label converters had spelling errors (written as label convertors). We fixed them by removing label converters from this project.
+
+- The part responsible for converting characters/strings to and from numeric indexes was extracted to *Dictionary*.
+
+- In older versions, different label converters would have different special character sets and character order. In version 0.x, the character order was as follows.
+
+| Converter                       | Character order                           |
+| ------------------------------- | ----------------------------------------- |
+| `AttnConvertor`, `ABIConvertor` | `<UKN>`, `<BOS/EOS>`, `<PAD>`, characters |
+| `CTCConvertor`                  | `<BLK>`, `<UKN>`, characters              |
+
+In 1.0, instead of designing different dictionaries and character orders for different tasks, we have a unified *Dictionary* implementation with the character order always as characters, \<BOS/EOS>, \<PAD>, \<UKN>. \<BLK> in `CTCConvertor` has been equivalently replaced by \<PAD>.
+
+- *Label convertor* originally supported three ways to initialize dictionaries: `dict_type`, `dict_file` and `dict_list`, which are now reduced to `dict_file` only in `Dictionary`. Also, we have put those pre-defined character sets originally supported in `dict_type` into `dicts/` directory now. The corresponding mapping is as follows:
+
+  | MMOCR 0.x: `dict_type` | MMOCR 1.0: Dict path                   |
+  | ---------------------- | -------------------------------------- |
+  | DICT90                 | dicts/english_digits_symbols.txt       |
+  | DICT91                 | dicts/english_digits_symbols_space.txt |
+  | DICT36                 | dicts/lower_english_digits.txt         |
+  | DICT37                 | dicts/lower_english_digits_space.txt   |
+
+- The implementation of `str2tensor()` in *label converter* has been moved to `ModuleLoss.get_targets()`. The following table shows the correspondence between the old and new method implementations. Note that the old and new implementations are not identical.
+
+  | MMOCR 0.x                                                 | MMOCR 1.0                               | Note                                                                                                     |
+  | --------------------------------------------------------- | --------------------------------------- | -------------------------------------------------------------------------------------------------------- |
+  | `ABIConvertor.str2tensor()`, `AttnConvertor.str2tensor()` | `BaseTextRecogModuleLoss.get_targets()` | The different implementations between `ABIConvertor.str2tensor()` and `AttnConvertor.str2tensor()` have been unified in the new version. |
+  | `CTCConvertor.str2tensor()`                               | `CTCModuleLoss.get_targets()`           |                                                                                                          |
+
+- The implementation of `tensor2idx()` in *label converter* has been moved to `Postprocessor.get_single_prediction()`. The following table shows the correspondence between the old and new method implementations. Note that the old and new implementations are not identical.
+
+  | MMOCR 0.x                                                 | MMOCR 1.0                                        |
+  | --------------------------------------------------------- | ------------------------------------------------ |
+  | `ABIConvertor.tensor2idx()`, `AttnConvertor.tensor2idx()` | `AttentionPostprocessor.get_single_prediction()` |
+  | `CTCConvertor.tensor2idx()`                               | `CTCPostProcessor.get_single_prediction()`       |
+
+## Key Information Extraction
+
+### Key Changes (TL;DR)
+
+- Due to changes in the inputs to the model, the model weights obtained in 0.x can no longer be directly used in 1.0.
+
+### KIEDataset & OpensetKIEDataset
+
+- The part that reads data is kept in `WildReceiptDataset`.
+
+- The part that additionally processes the nodes and edges is moved to `LoadKIEAnnotation`.
+
+- The part that uses dictionaries to transform text is moved to `SDMGRHead.convert_text()`, with the help of *Dictionary*.
+
+- The part of `compute_relation()` that computes the relationships between text boxes is moved to `SDMGRHead.compute_relations()`. It's now done inside the model.
+
+- The part that evaluates the model performance is done in [`F1Metric`](mmocr.evaluation.metric.F1Metric).
+
+- The part of `OpensetKIEDataset` that processes model's edge outputs is moved to `SDMGRPostProcessor`.
+
+### SDMGR
+
+- `show_result()` is integrated into `KIEVisualizer`.
+
+- The part of `forward_test()` that post-processes the output is organized in `SDMGRPostProcessor`.
+
+## Utils Migration
+
+Utility functions are now grouped together under `mmocr/utils/`. Here are the scopes of the files in this directory:
+
+- bbox_utils.py: bounding box related functions.
+- check_argument.py: used to check argument type.
+- collect_env.py: used to collect running environment.
+- data_converter_utils.py: used for data format conversion.
+- fileio.py: file input and output related functions.
+- img_utils.py: image processing related functions.
+- mask_utils.py: mask related functions.
+- ocr.py: used for MMOCR inference.
+- parsers.py: used for parsing datasets.
+- polygon_utils.py: polygon related functions.
+- setup_env.py: used for initialize MMOCR.
+- string_utils.py: string related functions.
+- typing.py: defines the abbreviation of types used in MMOCR.
diff --git a/mmocr-dev-1.x/docs/en/migration/dataset.md b/mmocr-dev-1.x/docs/en/migration/dataset.md
new file mode 100644
index 0000000000000000000000000000000000000000..6238c344fee15183e43bb67d67ea573b669f586d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/migration/dataset.md
@@ -0,0 +1,257 @@
+# Dataset Migration
+
+Based on the new design of [BaseDataset](mmengine.dataset.BaseDataset) in [MMEngine](https://github.com/open-mmlab/mmengine), we have refactored the base OCR dataset class [`OCRDataset`](mmocr.datasets.OCRDataset) in MMOCR 1.0. The following document describes the differences between the old and new dataset formats in MMOCR, and how to migrate from the deprecated version to the latest. For users who do not want to migrate datasets at this time, we also provide a temporary solution in [Section Compatibility](#compatibility).
+
+```{note}
+The Key Information Extraction task still uses the original WildReceipt dataset annotation format.
+```
+
+## Review of Old Dataset Formats
+
+MMOCR version 0.x implements a number of dataset classes, such as `IcdarDataset`, `TextDetDataset` for text detection tasks, and `OCRDataset`, `OCRSegDataset` for text recognition tasks. At the same time, the annotations may vary in different formats, such as `.txt`, `.json`, `.jsonl`. Users have to manually configure the `Loader` and the `Parser` while customizing the datasets.
+
+### Text Detection
+
+For the text detection task, `IcdarDataset` uses a COCO-like annotation format.
+
+```json
+{
+  "images": [
+    {
+      "id": 1,
+      "width": 800,
+      "height": 600,
+      "file_name": "test.jpg"
+    }
+  ],
+  "annotations": [
+    {
+      "id": 1,
+      "image_id": 1,
+      "category_id": 1,
+      "bbox": [0,0,10,10],
+      "segmentation": [
+          [0,0,10,0,10,10,0,10]
+      ],
+      "area": 100,
+      "iscrowd": 0
+    }
+  ]
+}
+```
+
+The `TextDetDataset` uses the JSON Line storage format, converting COCO-like labels to strings and saves them in `.txt` or `.jsonl` format files.
+
+```text
+{"file_name": "test/img_2.jpg", "height": 720, "width": 1280,  "annotations": [{"iscrowd": 0, "category_id": 1, "bbox": [602.0, 173.0,  33.0, 24.0], "segmentation": [[602, 173, 635, 175, 634, 197, 602,  196]]}, {"iscrowd": 0, "category_id": 1, "bbox": [734.0, 310.0, 58.0,  54.0], "segmentation": [[734, 310, 792, 320, 792, 364, 738, 361]]}]}
+{"file_name": "test/img_5.jpg", "height": 720, "width": 1280,  "annotations": [{"iscrowd": 1, "category_id": 1, "bbox": [405.0, 409.0,  32.0, 52.0], "segmentation": [[408, 409, 437, 436, 434, 461, 405,  433]]}, {"iscrowd": 1, "category_id": 1, "bbox": [435.0, 434.0, 8.0,  33.0], "segmentation": [[437, 434, 443, 440, 441, 467, 435, 462]]}]}
+```
+
+### Text Recognition
+
+For text recognition tasks, there are two annotation formats in MMOCR version 0.x. The simple `.txt` annotations separate image name and word annotation by a blank space, which cannot handle the case when spaces are included in a text instance.
+
+```text
+img1.jpg OpenMMLab
+img2.jpg MMOCR
+```
+
+The JSON Line format uses a dictionary-like structure to represent the annotations, where the keys `filename` and `text` store the image name and word label, respectively.
+
+```json
+{"filename": "img1.jpg", "text": "OpenMMLab"}
+{"filename": "img2.jpg", "text": "MMOCR"}
+```
+
+## New Dataset Format
+
+To solve the dataset issues, MMOCR 1.x adopts a unified dataset design introduced in MMEngine. Each annotation file is a `.json` file that stores a `dict`, containing both `metainfo` and `data_list`, where the former includes basic information about the dataset and the latter consists of the label item of each target instance.
+
+```json
+{
+  "metainfo":
+    {
+      "classes": ("cat", "dog"),
+      // ...
+    },
+  "data_list":
+    [
+      {
+        "img_path": "xxx/xxx_0.jpg",
+        "img_label": 0,
+        // ...
+      },
+      // ...
+    ]
+}
+```
+
+Based on the above structure, we introduced `TextDetDataset`, `TextRecogDataset` for MMOCR-specific tasks.
+
+### Text Detection
+
+#### Introduction of the New Format
+
+The `TextDetDataset` holds the information required by the text detection task, such as bounding boxes and labels. We refer users to `tests/data/det_toy_dataset/instances_test.json` which is an example annotation for `TextDetDataset`.
+
+```json
+{
+  "metainfo":
+    {
+      "dataset_type": "TextDetDataset",
+      "task_name": "textdet",
+      "category": [{"id": 0, "name": "text"}]
+    },
+  "data_list":
+    [
+      {
+        "img_path": "test_img.jpg",
+        "height": 640,
+        "width": 640,
+        "instances":
+          [
+            {
+              "polygon": [0, 0, 0, 10, 10, 20, 20, 0],
+              "bbox": [0, 0, 10, 20],
+              "bbox_label": 0,
+              "ignore": False
+            }，
+            // ...
+          ]
+      }
+    ]
+}
+```
+
+The bounding box format is as follows: `[min_x, min_y, max_x, max_y]`
+
+#### Migration Script
+
+We provide a migration script to help users migrate old annotation files to the new format.
+
+```bash
+python tools/dataset_converters/textdet/data_migrator.py ${IN_PATH} ${OUT_PATH}
+```
+
+| ARGS     | Type                             | Description                                                                                                                                                      |
+| -------- | -------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| in_path  | str                              | （Required）Path to the old annotation file.                                                                                                                     |
+| out_path | str                              | （Required）Path to the new annotation file.                                                                                                                     |
+| --task   | 'auto', 'textdet', 'textspotter' | Specifies the compatible task for the output dataset annotation. If 'textdet' is specified, the text field in coco format will not be dumped. The default is 'auto', which automatically determines the output format based on the the old annotation files. |
+
+### Text Recognition
+
+#### Introduction of the New Format
+
+The `TextRecogDataset` holds the information required by the text detection task, such as text and image path. We refer users to `tests/data/rec_toy_dataset/labels.json` which is an example annotation for `TextRecogDataset`.
+
+```json
+{
+  "metainfo":
+    {
+      "dataset_type": "TextRecogDataset",
+      "task_name": "textrecog",
+    },
+    "data_list":
+    [
+      {
+        "img_path": "test_img.jpg",
+        "instances":
+            [
+              {
+                "text": "GRAND"
+              }
+            ]
+      }
+    ]
+}
+```
+
+#### Migration Script
+
+We provide a migration script to help users migrate old annotation files to the new format.
+
+```bash
+python tools/dataset_converters/textrecog/data_migrator.py ${IN_PATH} ${OUT_PATH} --format ${txt, jsonl, lmdb}
+```
+
+| ARGS     | Type                   | Description                                       |
+| -------- | ---------------------- | ------------------------------------------------- |
+| in_path  | str                    | （Required）Path to the old annotation file.      |
+| out_path | str                    | （Required）Path to the new annotation file.      |
+| --format | 'txt', 'jsonl', 'lmdb' | Specify the format of the old dataset annotation. |
+
+## Compatibility
+
+In consideration of the cost to users for data migration, we have temporarily made MMOCR version 1.x compatible with the old MMOCR 0.x format.
+
+```{note}
+The code and components used for compatibility with the old data format may be completely removed in a future release. Therefore, we strongly recommend that users migrate their datasets to the new data format.
+```
+
+Specifically, we provide three dataset classes [IcdarDataset](mmocr.datasets.IcdarDataset), [RecogTextDataset](mmocr.datasets.RecogTextDataset), [RecogLMDBDataset](mmocr.datasets.RecogLMDBDataset) to support the old formats.
+
+1. [IcdarDataset](mmocr.datasets.IcdarDataset) supports COCO-like format annotations for text detection. You just need to add a new dataset config to `configs/textdet/_base_/datasets` and specify its dataset type as `IcdarDataset`.
+
+   ```python
+   data_root = 'data/det/icdar2015'
+   train_anno_path = 'instances_training.json'
+
+   train_dataset = dict(
+       type='IcdarDataset',
+       data_root=data_root,
+       ann_file=train_anno_path,
+       data_prefix=dict(img_path='imgs/'),
+       filter_cfg=dict(filter_empty_gt=True, min_size=32),
+       pipeline=None)
+   ```
+
+2. [RecogTextDataset](mmocr.datasets.RecogTextDataset) supports `.txt` and `.jsonl` format annotations for text recognition. You just need to add a new dataset config to `configs/textrecog/_base_/datasets` and specify its dataset type as `RecogTextDataset`. For example, the following example shows how to configure and load the 0.x format labels `old_label.txt` and `old_label.jsonl` from the toy dataset.
+
+   ```python
+    data_root = 'tests/data/rec_toy_dataset/'
+
+    # loading 0.x txt format annos
+    txt_dataset = dict(
+        type='RecogTextDataset',
+        data_root=data_root,
+        ann_file='old_label.txt',
+        data_prefix=dict(img_path='imgs'),
+        parser_cfg=dict(
+            type='LineStrParser',
+            keys=['filename', 'text'],
+            keys_idx=[0, 1]),
+        pipeline=[])
+
+    # loading 0.x json line format annos
+    jsonl_dataset = dict(
+        type='RecogTextDataset',
+        data_root=data_root,
+        ann_file='old_label.jsonl',
+        data_prefix=dict(img_path='imgs'),
+        parser_cfg=dict(
+            type='LineJsonParser',
+            keys=['filename', 'text'],
+        pipeline=[]))
+   ```
+
+3. [RecogLMDBDataset](mmocr.datasets.RecogLMDBDataset) supports LMDB format dataset (img+labels) for text recognition. You just need to add a new dataset config to `configs/textrecog/_base_/datasets` and specify its dataset type as `RecogLMDBDataset`. For example, the following example shows how to configure and load the **both labels and images** `imgs.lmdb` from the toy dataset.
+
+- set the dataset type to `RecogLMDBDataset`
+
+```python
+# Specify the dataset type as RecogLMDBDataset
+ data_root = 'tests/data/rec_toy_dataset/'
+
+ lmdb_dataset = dict(
+     type='RecogLMDBDataset',
+     data_root=data_root,
+     ann_file='imgs.lmdb',
+     pipeline=None)
+```
+
+- replace the [`LoadImageFromFile`](mmocr.datasets.transforms.LoadImageFromFile) with [`LoadImageFromNDArray`](mmocr.datasets.transforms.LoadImageFromNDArray) in the data pipelines in `train_pipeline` and `test_pipeline`., for example：
+
+```python
+ train_pipeline = [dict(type='LoadImageFromNDArray')]
+```
diff --git a/mmocr-dev-1.x/docs/en/migration/model.md b/mmocr-dev-1.x/docs/en/migration/model.md
new file mode 100644
index 0000000000000000000000000000000000000000..2ab507470ed9892b12f420c40eb81bbecd0bfd29
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/migration/model.md
@@ -0,0 +1,5 @@
+# Pretrained Model Migration
+
+Due to the extensive refactoring and fixing of the model structure in the new version, MMOCR 1.x does not support load weights trained by the old version. We have updated the pre-training weights and logs of all models on our website.
+
+In addition, we are working on the development of a weight migration tool for text detection tasks and plan to release it in the near future. Since the text recognition and key information extraction models are too much modified and the migration is lossy, we do not plan to support them accordingly for the time being. If you have specific requirements, please feel free to raise an [Issue](https://github.com/open-mmlab/mmocr/issues).
diff --git a/mmocr-dev-1.x/docs/en/migration/news.md b/mmocr-dev-1.x/docs/en/migration/news.md
new file mode 100644
index 0000000000000000000000000000000000000000..1dc991186953916a4a6d4a47d4a1c30c7d8ada7d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/migration/news.md
@@ -0,0 +1,19 @@
+# What's New in MMOCR 1.x
+
+Here are some highlights of MMOCR 1.x compared to 0.x.
+
+1. **New engines**. MMOCR 1.x is based on [MMEngine](https://github.com/open-mmlab/mmengine), which provides a general and powerful runner that allows more flexible customizations and significantly simplifies the entrypoints of high-level interfaces.
+
+2. **Unified interfaces**. As a part of the OpenMMLab 2.0 projects, MMOCR 1.x unifies and refactors the interfaces and internal logics of train, testing, datasets, models, evaluation, and visualization. All the OpenMMLab 2.0 projects share the same design in those interfaces and logics to allow the emergence of multi-task/modality algorithms.
+
+3. **Cross project calling**. Benefiting from the unified design, you can use the models implemented in other OpenMMLab projects, such as MMDet. We provide an example of how to use MMDetection's Mask R-CNN through `MMDetWrapper`. Check our documents for more details. More wrappers will be released in the future.
+
+4. **Stronger visualization**. We provide a series of useful tools which are mostly based on brand-new visualizers. As a result, it is more convenient for the users to explore the models and datasets now.
+
+5. **More documentation and tutorials**. We add a bunch of documentation and tutorials to help users get started more smoothly.
+
+6. **One-stop Dataset Preparaion**. Multiple datasets are instantly ready with only one line of command, via our [Dataset Preparer](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/data_prepare/dataset_preparer.html).
+
+7. **Embracing more `projects/`**: We now introduce `projects/` folder, where some experimental features, frameworks and models can be placed, only needed to satisfy the minimum requirement on the code quality. Everyone is welcome to post their implementation of any great ideas in this folder! Learn more from our [example project](https://github.com/open-mmlab/mmocr/blob/dev-1.x/projects/example_project/).
+
+8. **More models**. MMOCR 1.0 supports more tasks and more state-of-the-art models!
diff --git a/mmocr-dev-1.x/docs/en/migration/overview.md b/mmocr-dev-1.x/docs/en/migration/overview.md
new file mode 100644
index 0000000000000000000000000000000000000000..e389781dc5279340ef43301e373e0e5fa10d63cc
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/migration/overview.md
@@ -0,0 +1,18 @@
+# Overview
+
+Along with the release of OpenMMLab 2.0, MMOCR 1.0 made many significant changes, resulting in less redundant, more efficient code and a more consistent overall design. However, these changes break backward compatibility. We understand that with such huge changes, it is not easy for users familiar with the old version to adapt to the new version. Therefore, we prepared a detailed migration guide to make the transition as smooth as possible so that all users can enjoy the productivity benefits of the new MMOCR and the entire OpenMMLab 2.0 ecosystem.
+
+```{warning}
+MMOCR 1.0 depends on the new foundational library for training deep learning models [MMEngine](https://github.com/open-mmlab/mmengine), and therefore has an entirely different dependency chain compared with MMOCR 0.x. Even if you have a well-rounded MMOCR 0.x environment before, you still need to create a new python environment for MMOCR 1.0. We provide a detailed [installation guide](../get_started/install.md) for reference.
+```
+
+Next, please read the sections according to your requirements.
+
+- Read [What's new in MMOCR 1.x](./news.md) to learn about the new features and changes in MMOCR 1.x.
+- If you want to migrate a model trained in version 0.x to use it directly in version 1.0, please read [Pretrained Model Migration](./model.md).
+- If you want to train the model, please read [Dataset Migration](./dataset.md) and [Data Transform Migration](./transforms.md).
+- If you want to develop on MMOCR, please read [Code Migration](code.md), [Branch Migration](branches.md) and [Upstream Library Changes](https://github.com/open-mmlab/mmengine/tree/main/docs/en/migration).
+
+As shown in the following figure, the maintenance plan of MMOCR 1.x version is mainly divided into three stages, namely "RC Period", "Compatibility Period" and "Maintenance Period". For old versions, we will no longer add major new features. Therefore, we strongly recommend users to migrate to MMOCR 1.x version as soon as possible.
+
+![plan](https://user-images.githubusercontent.com/45810070/192927112-70c0108d-58ed-4c77-8a0a-9d9685a48333.png)
diff --git a/mmocr-dev-1.x/docs/en/migration/transforms.md b/mmocr-dev-1.x/docs/en/migration/transforms.md
new file mode 100644
index 0000000000000000000000000000000000000000..33661313d5abae59b49e59e6fcf53591c40b3959
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/migration/transforms.md
@@ -0,0 +1,583 @@
+# Data Transform Migration
+
+## Introduction
+
+In MMOCR version 0.x, we implemented a series of **Data Transform** methods in `mmocr/datasets/pipelines/xxx_transforms.py`. However, these modules are scattered all over the place and lack a standardized design. Therefore, we refactored all the data transform modules in MMOCR version 1.x. According to the task type, they are now defined in `ocr_transforms.py`, `textdet_transforms.py`, and `textrecog_transforms.py`, respectively, under `mmocr/datasets/transforms`. Specifically, `ocr_transforms.py` implements the data augmentation methods for OCR-related tasks in general, while `textdet_transforms.py` and `textrecog_transforms.py` implement data augmentation transforms related to text detection and text recognition tasks, respectively.
+
+Since some of the modules were renamed, merged or separated during the refactoring process, the new interface and default parameters may be inconsistent with the old version. Therefore, this migration guide will introduce how to configure the new data transforms to achieve the identical behavior as the old version.
+
+## Configuration Migration Guide
+
+### Data Formatting Related Data Transforms
+
+1. `Collect` + `CustomFormatBundle` -> [`PackTextDetInputs`](mmocr.datasets.transforms.formatting.PackTextDetInputs)/[`PackTextRecogInputs`](mmocr.datasets.transforms.formatting.PackTextRecogInputs)
+
+`PackxxxInputs` implements both `Collect` and `CustomFormatBundle` functions, and no longer has `key` parameters, the generation of training targets is moved to be done in `loss` modules.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+    type='CustomFormatBundle',
+    keys=['gt_shrink', 'gt_shrink_mask', 'gt_thr', 'gt_thr_mask'],
+    meta_keys=['img_path', 'ori_shape', 'img_shape'],
+    visualize=dict(flag=False, boundary_key='gt_shrink')),
+dict(
+    type='Collect',
+    keys=['img', 'gt_shrink', 'gt_shrink_mask', 'gt_thr', 'gt_thr_mask'])
+```
+
+</td><td>
+
+```python
+dict(
+  type='PackTextDetInputs',
+  meta_keys=('img_path', 'ori_shape', 'img_shape'))
+```
+
+</td></tr>
+</thead>
+</table>
+
+### Data Augmentation Related Data Transforms
+
+1. `ResizeOCR` -> [`Resize`](mmocr.datasets.transforms.Resize), [`RescaleToHeight`](mmocr.datasets.transforms.RescaleToHeight), [`PadToWidth`](mmocr.datasets.transforms.PadToWidth)
+
+   The original `ResizeOCR` is now split into three data augmentation modules.
+
+   When `keep_aspect_ratio=False`, it is equivalent to `Resize` in version 1.x. Its configuration can be modified as follows.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ResizeOCR',
+  height=32,
+  min_width=100,
+  max_width=100,
+  keep_aspect_ratio=False)
+```
+
+</td><td>
+
+```python
+dict(
+  type='Resize',
+  scale=(100, 32),
+  keep_ratio=False)
+```
+
+</td></tr>
+</thead>
+</table>
+
+When `keep_aspect_ratio=True` and `max_width=None`. The image will be rescaled to a fixed size alongside the height while keeping the aspect ratio the same as the origin.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ResizeOCR',
+  height=32,
+  min_width=32,
+  max_width=None,
+  width_downsample_ratio = 1.0 / 16
+  keep_aspect_ratio=True)
+```
+
+</td><td>
+
+```python
+dict(
+  type='RescaleToHeight',
+  height=32,
+  min_width=32,
+  max_width=None,
+  width_divisor=16),
+```
+
+</td></tr>
+</thead>
+</table>
+
+When `keep_aspect_ratio=True` and `max_width` is a fixed value. The image will be rescaled to a fixed size alongside the height while keeping the aspect ratio the same as the origin. Then, the width will be padded or cropped to `max_width`. That is to say, the shape of the output image is always `(height, max_width)`.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ResizeOCR',
+  height=32,
+  min_width=32,
+  max_width=100,
+  width_downsample_ratio = 1.0 / 16,
+  keep_aspect_ratio=True)
+```
+
+</td><td>
+
+```python
+dict(
+  type='RescaleToHeight',
+  height=32,
+  min_width=32,
+  max_width=100,
+  width_divisor=16),
+dict(
+  type='PadToWidth',
+  width=100)
+```
+
+</td></tr>
+</thead>
+</table>
+
+2. `RandomRotateTextDet` &  `RandomRotatePolyInstances` -> [`RandomRotate`](mmocr.datasets.transforms.RandomRotate)
+
+   We implemented all random rotation-related data augmentation in `RandomRotate` in version 1.x. Its default behavior is identical to the `RandomRotateTextDet` in version 0.x.
+
+```{note}
+  The default value of "max_angle" might be different from the old version, so the users are suggested to manually set the number.
+```
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(type='RandomRotateTextDet')
+```
+
+</td><td>
+
+```python
+dict(type='RandomRotate', max_angle=10)
+```
+
+</td></tr>
+</thead>
+</table>
+
+For `RandomRotatePolyInstances`，it is supposed to set `use_canvas=True`。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='RandomRotatePolyInstances',
+  rotate_ratio=0.5, # Specify the execution probability
+  max_angle=60,
+  pad_with_fixed_color=False)
+```
+
+</td><td>
+
+```python
+# Wrap the data transforms with RandomApply and specify the execution probability
+dict(
+  type='RandomApply',
+  transforms=[
+    dict(type='RandomRotate',
+    max_angle=60,
+    pad_with_fixed_color=False,
+    use_canvas=True)],
+  prob=0.5) # Specify the execution probability
+```
+
+</td></tr>
+</thead>
+</table>
+
+```{note}
+In version 0.x, some data augmentation methods specified execution probability by defining an internal variable "xxx_ratio", such as "rotate_ratio", "crop_ratio", etc. In version 1.x, these parameters have been removed. Now we can use "RandomApply" to wrap different data transforms and specify their execution probabilities.
+```
+
+3. `RandomCropFlip` -> [`TextDetRandomCropFlip`](mmocr.datasets.transforms.TextDetRandomCropFlip)
+
+   Currently, only the method name has been changed, and other parameters remain the same.
+
+4. `RandomCropPolyInstances` -> [`RandomCrop`](mmocr.datasets.transforms.RandomCrop)
+
+   In MMOCR version 1.x, `crop_ratio` and `instance_key` are removed. The `gt_polygons` is now used as the target for cropping.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='RandomCropPolyInstances',
+  instance_key='gt_masks',
+  crop_ratio=0.8, # Specify the execution probability
+  min_side_ratio=0.3)
+```
+
+</td><td>
+
+```python
+# Wrap the data transforms with RandomApply and specify the execution probability
+dict(
+  type='RandomApply',
+  transforms=[dict(type='RandomCrop', min_side_ratio=0.3)],
+  prob=0.8) # Specify the execution probability
+```
+
+</td></tr>
+</thead>
+</table>
+
+5. `RandomCropInstances` -> [`TextDetRandomCrop`](mmocr.datasets.transforms.TextDetRandomCrop)
+
+   In MMOCR version 1.x, `crop_ratio` and `instance_key` are removed. The `gt_polygons` is now used as the target for cropping.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='RandomCropInstances',
+  target_size=(800，800),
+  instance_key='gt_kernels')
+```
+
+</td><td>
+
+```python
+dict(
+  type='TextDetRandomCrop',
+  target_size=(800，800))
+```
+
+</td></tr>
+</thead>
+</table>
+
+6. `EastRandomCrop` -> [`RandomCrop`](mmocr.datasets.transforms.RandomCrop) + [`Resize`](mmocr.datasets.transforms.Resize) + [`mmengine.Pad`](mmcv.transforms.Pad)
+
+   `EastRandomCrop` was implemented by applying cropping, scaling and padding to the input image. Now, the same effect can be achieved by combining three data transforms.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='EastRandomCrop',
+  max_tries=10,
+  min_crop_side_ratio=0.1,
+  target_size=(640, 640))
+```
+
+</td><td>
+
+```python
+dict(type='RandomCrop', min_side_ratio=0.1),
+dict(type='Resize', scale=(640,640), keep_ratio=True),
+dict(type='Pad', size=(640,640))
+```
+
+</td></tr>
+</thead>
+</table>
+
+7. `RandomScaling` -> [`mmengine.RandomResize`](mmcv.transforms.RandomResize)
+
+   The `RandomScaling` is now replaced with [`mmengine.RandomResize`](mmcv.transforms.RandomResize).
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+ dict(
+  type='RandomScaling',
+  size=800,
+  scale=(0.75, 2.5))
+```
+
+</td><td>
+
+```python
+dict(
+  type='RandomResize',
+  scale=(800, 800),
+  ratio_range=(0.75, 2.5),
+  keep_ratio=True)
+```
+
+</td></tr>
+</thead>
+</table>
+
+```{note}
+By default, the data pipeline will search for the corresponding data transforms from the register of the current *scope*, and if that data transform does not exist, it will continue to search in the upstream library, such as MMCV and MMEngine. For example, the `RandomResize` transform is not implemented in MMOCR, but it can be directly called in the configuration, as the program will automatically search for it from MMCV. In addition, you can also specify *scope* by adding a prefix. For example, `mmengine.RandomResize` will force it to use `RandomResize` implemented in MMEngine, which is useful when a method of the same name exists in both upstream and downstream libraries. It is noteworthy that all of the data transforms implemented in MMCV are registered to MMEngine, that is why we use `mmengine.RandomResize` but not `mmcv.RandomResize`.
+```
+
+8. `SquareResizePad` -> [`Resize`](mmocr.datasets.transforms.Resize) + [`SourceImagePad`](mmocr.datasets.transforms.SourceImagePad)
+
+   `SquareResizePad` implements two branches and uses one of them randomly based on the `pad_ratio`. Specifically, one branch first resizes the image and then pads it to a certain size; while the other branch only resizes the image. To enhance the reusability of the different modules, we split this data transform into a combination of `Resize` + `SourceImagePad` in version 1.x, and control the branches via `RandomChoice`.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='SquareResizePad',
+  target_size=800,
+  pad_ratio=0.6)
+```
+
+</td><td>
+
+```python
+dict(
+  type='RandomChoice',
+  transforms=[
+    [
+      dict(
+        type='Resize',
+        scale=800,
+        keep_ratio=True),
+      dict(
+        type='SourceImagePad',
+        target_scale=800)
+    ],
+    [
+      dict(
+        type='Resize',
+        scale=800,
+        keep_ratio=False)
+    ]
+  ],
+  prob=[0.4, 0.6]), # Probability of selection of two combinations
+```
+
+</td></tr>
+</thead>
+</table>
+
+```{note}
+In version 1.x, the random choice wrapper "RandomChoice" replaces "OneOfWrapper", allowing random selection of data transform combinations.
+```
+
+9. `RandomWrapper` -> [`mmengine.RandomApply`](mmcv.transforms.RandomApply)
+
+   In version 1.x, the `RandomWrapper` wrapper has been replaced with `RandomApply` in MMEngine, which is used to specify the probability of performing a data transform. And the probability `p` is now named `prob`.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+ dict(
+  type='RandomWrapper',
+  p=0.25,
+  transforms=[
+      dict(type='PyramidRescale'),
+  ])
+```
+
+</td><td>
+
+```python
+dict(
+  type='RandomApply',
+  prob=0.25,
+  transforms=[
+    dict(type='PyramidRescale'),
+  ])
+```
+
+</td></tr>
+</thead>
+</table>
+
+10. `OneOfWrapper` -> [`mmengine.RandomChoice`](mmcv.transforms.RandomChoice)
+
+    The random choice wrapper is now renamed to `RandomChoice` and is used in exactly the same way as before.
+
+11. `ScaleAspectJitter` -> [`ShortScaleAspectJitter`](mmocr.datasets.transforms.ShortScaleAspectJitter), [`BoundedScaleAspectJitter`](mmocr.datasets.transforms.BoundedScaleAspectJitter)
+
+    The `ScaleAspectJitter` implemented several different image size jittering strategies, which has now been split into several independent data transforms.
+
+    When `resize_type='indep_sample_in_range'`, it is equivalent to `RandomResize`.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ScaleAspectJitter',
+  img_scale=None,
+  keep_ratio=False,
+  resize_type='indep_sample_in_range',
+  scale_range=(640, 2560))
+```
+
+</td><td>
+
+```python
+ dict(
+  type='RandomResize',
+  scale=(640, 640),
+  ratio_range=(1.0, 4.125),
+  resize_type='Resize',
+  keep_ratio=True))
+```
+
+</td></tr>
+</thead>
+</table>
+
+When `resize_type='long_short_bound'`, we implemented `BoundedScaleAspectJitter`, which randomly rescales the image so that the long and short sides of the image are around the bound; then jitters the aspect ratio.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ScaleAspectJitter',
+  img_scale=[(3000, 736)],  # Unused
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1),
+  multiscale_mode='value',
+  long_size_bound=800,
+  short_size_bound=480,
+  resize_type='long_short_bound',
+  keep_ratio=False)
+```
+
+</td><td>
+
+```python
+dict(
+  type='BoundedScaleAspectJitter',
+  long_size_bound=800,
+  short_size_bound=480,
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1))
+```
+
+</td></tr>
+</thead>
+</table>
+
+When `resize_type='round_min_img_scale'`, we implemented `ShortScaleAspectJitter`, which rescales the image for its shorter side to reach the `short_size` and then jitters its aspect ratio, finally rescales the shape guaranteed to be divided by scale_divisor.
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x Configuration</th>
+    <th>MMOCR 1.x Configuration</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ScaleAspectJitter',
+  img_scale=[(3000, 640)],
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1),
+  multiscale_mode='value',
+  keep_ratio=False)
+```
+
+</td><td>
+
+```python
+dict(
+  type='ShortScaleAspectJitter',
+  short_size=640,
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1),
+  scale_divisor=32),
+```
+
+</td></tr>
+</thead>
+</table>
diff --git a/mmocr-dev-1.x/docs/en/notes/branches.md b/mmocr-dev-1.x/docs/en/notes/branches.md
new file mode 100644
index 0000000000000000000000000000000000000000..9b799946895de88065724684dd28939d635cfc83
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/notes/branches.md
@@ -0,0 +1,25 @@
+# Branches
+
+This documentation aims to provide a comprehensive understanding of the purpose and features of each branch in MMOCR.
+
+## Branch Overview
+
+### 1. `main`
+
+The `main` branch serves as the default branch for the MMOCR project. It contains the latest stable version of MMOCR, currently housing the code for MMOCR 1.x (e.g. v1.0.0). The `main` branch ensures users have access to the most recent and reliable version of the software.
+
+### 2. `dev-1.x`
+
+The `dev-1.x` branch is dedicated to the development of the next major version of MMOCR. This branch will routinely undergo reliance tests, and the passing commits will be squashed in a release and published to the `main` branch. By having a separate development branch, the project can continue to evolve without impacting the stability of the `main` branch. **All the PRs should be merged into the `dev-1.x` branch.**
+
+### 3. `0.x`
+
+The `0.x` branch serves as an archive for MMOCR 0.x (e.g. v0.6.3). This branch will no longer actively receive updates or improvements, but it remains accessible for historical reference or for users who have not yet upgraded to MMOCR 1.x.
+
+### 3. `1.x`
+
+It's an alias of `main` branch, which is intended for a smooth transition from the compatibility period. It will be removed in mid 2023.
+
+```{note}
+The branches mapping has been changed in 2023.04.06. For the legacy branches mapping and the guide for migration, please refer to the [branch migration guide](../migration/branches.md).
+```
diff --git a/mmocr-dev-1.x/docs/en/notes/changelog.md b/mmocr-dev-1.x/docs/en/notes/changelog.md
new file mode 100644
index 0000000000000000000000000000000000000000..b04e69531cb606f4f7e2e9d326d9955c6deab5f2
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/notes/changelog.md
@@ -0,0 +1,458 @@
+# Changelog of v1.x
+
+## v1.0.0 (04/06/2023)
+
+We are excited to announce the first official release of MMOCR 1.0, with numerous enhancements, bug fixes, and the introduction of new dataset support!
+
+### 🌟 Highlights
+
+- Support for SCUT-CTW1500, SynthText, and MJSynth datasets
+- Updated FAQ and documentation
+- Deprecation of file_client_args in favor of backend_args
+- Added a new MMOCR tutorial notebook
+
+### 🆕 New Features & Enhancement
+
+- Add SCUT-CTW1500 by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1677
+- Cherry Pick #1205 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1774
+- Make lanms-neo optional by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1772
+- SynthText by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1779
+- Deprecate file_client_args and use backend_args instead by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1765
+- MJSynth by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1791
+- Add MMOCR tutorial notebook by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1771
+- decouple batch_size to det_batch_size, rec_batch_size and kie_batch_size in MMOCRInferencer by @hugotong6425 in https://github.com/open-mmlab/mmocr/pull/1801
+- Accepts local-rank in train.py and test.py by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1806
+- update stitch_boxes_into_lines by @cherryjm in https://github.com/open-mmlab/mmocr/pull/1824
+- Add tests for pytorch 2.0 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1836
+
+### 📝 Docs
+
+- FAQ by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1773
+- Remove LoadImageFromLMDB from docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1767
+- Mark projects in docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1766
+- add opendatalab download link by @jorie-peng in https://github.com/open-mmlab/mmocr/pull/1753
+- Fix some deadlinks in the docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1469
+- Fix quick run by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1775
+- Dataset by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1782
+- Update faq by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1817
+- more social network links by @fengshiwest in https://github.com/open-mmlab/mmocr/pull/1818
+- Update docs after branch switching by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1834
+
+### 🛠️ Bug Fixes:
+
+- Place dicts to .mim by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1781
+- Test svtr_small instead of svtr_tiny by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1786
+- Add pse weight to metafile by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1787
+- Synthtext metafile by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1788
+- Clear up some unused scripts by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1798
+- if dst not exists, when move a single file may raise a file not exists error. by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1803
+- CTW1500 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1814
+- MJSynth & SynthText Dataset Preparer config by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1805
+- Use poly_intersection instead of poly.intersection to avoid sup… by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1811
+- Abinet: fix ValueError: Blur limit must be odd when centered=True. Got: (3, 6) by @hugotong6425 in https://github.com/open-mmlab/mmocr/pull/1821
+- Bug generated during kie inference visualization by @Yangget in https://github.com/open-mmlab/mmocr/pull/1830
+- Revert sync bn in inferencer by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1832
+- Fix mmdet digit version by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1840
+
+### 🎉 New Contributors
+
+- @jorie-peng made their first contribution in https://github.com/open-mmlab/mmocr/pull/1753
+- @hugotong6425 made their first contribution in https://github.com/open-mmlab/mmocr/pull/1801
+- @fengshiwest made their first contribution in https://github.com/open-mmlab/mmocr/pull/1818
+- @cherryjm made their first contribution in https://github.com/open-mmlab/mmocr/pull/1824
+- @Yangget made their first contribution in https://github.com/open-mmlab/mmocr/pull/1830
+
+Thank you to all the contributors for making this release possible! We're excited about the new features and enhancements in this version, and we're looking forward to your feedback and continued support. Happy coding! 🚀
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v1.0.0rc6...v1.0.0
+
+### Highlights
+
+## v1.0.0rc6 (03/07/2023)
+
+### Highlights
+
+1. Two new models, ABCNet v2 (inference only) and SPTS are added to `projects/` folder.
+2. Announcing `Inferencer`, a unified inference interface in OpenMMLab for everyone's easy access and quick inference with all the pre-trained weights. [Docs](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/inference.html)
+3. Users can use test-time augmentation for text recognition tasks. [Docs](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/train_test.html#test-time-augmentation)
+4. Support [batch augmentation](https://openaccess.thecvf.com/content_CVPR_2020/papers/Hoffer_Augment_Your_Batch_Improving_Generalization_Through_Instance_Repetition_CVPR_2020_paper.pdf) through [`BatchAugSampler`](https://github.com/open-mmlab/mmocr/pull/1757), which is a technique used in SPTS.
+5. Dataset Preparer has been refactored to allow more flexible configurations. Besides, users are now able to prepare text recognition datasets in LMDB formats. [Docs](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/data_prepare/dataset_preparer.html#lmdb-format)
+6. Some textspotting datasets have been revised to enhance the correctness and consistency with the common practice.
+7. Potential spurious warnings from `shapely` have been eliminated.
+
+### Dependency
+
+This version requires MMEngine >= 0.6.0, MMCV >= 2.0.0rc4 and MMDet >= 3.0.0rc5.
+
+### New Features & Enhancements
+
+- Discard deprecated lmdb dataset format and only support img+label now by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1681
+- abcnetv2 inference by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1657
+- Add RepeatAugSampler by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1678
+- SPTS by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1696
+- Refactor Inferencers by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1608
+- Dynamic return type for rescale_polygons by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1702
+- Revise upstream version limit by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1703
+- TextRecogCropConverter add crop with opencv warpPersepective function by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1667
+- change cudnn benchmark to false by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1705
+- Add ST-pretrained DB-series models and logs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1635
+- Only keep meta and state_dict when publish model by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1729
+- Rec TTA by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1401
+- Speedup formatting by replacing np.transpose with torch… by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1719
+- Support auto import modules from registry. by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1731
+- Support batch visualization & dumping in Inferencer by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1722
+- add a new argument font_properties to set a specific font file in order to draw Chinese characters properly by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1709
+- Refactor data converter and gather by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1707
+- Support batch augmentation through BatchAugSampler by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1757
+- Put all registry into registry.py by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1760
+- train by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1756
+- configs for regression benchmark by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1755
+- Support lmdb format in Dataset Preparer by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1762
+
+### Docs
+
+- update the link of DBNet by @AllentDan in https://github.com/open-mmlab/mmocr/pull/1672
+- Add notice for default branch switching by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1693
+- docs: Add twitter discord medium youtube link by @vansin in https://github.com/open-mmlab/mmocr/pull/1724
+- Remove unsupported datasets in docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1670
+
+### Bug Fixes
+
+- Update dockerfile by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1671
+- Explicitly create np object array for compatibility by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1691
+- Fix a minor error in docstring by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1685
+- Fix lint by @triple-Mu in https://github.com/open-mmlab/mmocr/pull/1694
+- Fix LoadOCRAnnotation ut by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1695
+- Fix isort pre-commit error by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1697
+- Update owners by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1699
+- Detect intersection before using shapley.intersection to eliminate spurious warnings by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1710
+- Fix some inferencer bugs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1706
+- Fix textocr ignore flag by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1712
+- Add missing softmax in ASTER forward_test by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1718
+- Fix head in readme by @vansin in https://github.com/open-mmlab/mmocr/pull/1727
+- Fix some browse dataset script bugs and draw textdet gt instance with ignore flags by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1701
+- icdar textrecog ann parser skip data with ignore flag by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1708
+- bezier_to_polygon ->  bezier2polygon by @double22a in https://github.com/open-mmlab/mmocr/pull/1739
+- Fix docs recog CharMetric P/R error definition by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1740
+- Remove outdated resources in demo/ by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1747
+- Fix wrong ic13 textspotting split data; add lexicons to ic13, ic15 and totaltext by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1758
+- SPTS readme by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1761
+
+### New Contributors
+
+- @triple-Mu made their first contribution in https://github.com/open-mmlab/mmocr/pull/1694
+- @double22a made their first contribution in https://github.com/open-mmlab/mmocr/pull/1739
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v1.0.0rc5...v1.0.0rc6
+
+## v1.0.0rc5 (01/06/2023)
+
+### Highlights
+
+1. Two models, Aster and SVTR, are added to our model zoo. The full implementation of ABCNet is also available now.
+2. Dataset Preparer supports 5 more datasets: CocoTextV2, FUNSD, TextOCR, NAF, SROIE.
+3. We have 4 more text recognition transforms, and two helper transforms. See https://github.com/open-mmlab/mmocr/pull/1646 https://github.com/open-mmlab/mmocr/pull/1632 https://github.com/open-mmlab/mmocr/pull/1645 for details.
+4. The transform, `FixInvalidPolygon`, is getting smarter at dealing with invalid polygons, and now capable of handling more weird annotations. As a result, a complete training cycle on TotalText dataset can be performed bug-free. The weights of DBNet and FCENet pretrained on TotalText are also released.
+
+### New Features & Enhancements
+
+- Update ic15 det config according to DataPrepare by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1617
+- Refactor icdardataset metainfo to lowercase. by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1620
+- Add ASTER Encoder by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1239
+- Add ASTER decoder by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1625
+- Add ASTER config by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1238
+- Update ASTER config by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1629
+- Support browse_dataset.py to visualize original dataset by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1503
+- Add CocoTextv2 to dataset preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1514
+- Add Funsd to dataset preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1550
+- Add TextOCR to Dataset Preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1543
+- Refine example projects and readme by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1628
+- Enhance FixInvalidPolygon, add RemoveIgnored transform by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1632
+- ConditionApply by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1646
+- Add NAF to dataset preparer by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1609
+- Add SROIE to dataset preparer by @FerryHuang in https://github.com/open-mmlab/mmocr/pull/1639
+- Add svtr decoder by @willpat1213 in https://github.com/open-mmlab/mmocr/pull/1448
+- Add missing unit tests by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1651
+- Add svtr encoder by @willpat1213 in https://github.com/open-mmlab/mmocr/pull/1483
+- ABCNet train by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1610
+- Totaltext cfgs for DB and FCE by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1633
+- Add Aliases to models by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1611
+- SVTR transforms by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1645
+- Add SVTR framework and configs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1621
+- Issue Template by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1663
+
+### Docs
+
+- Add Chinese translation for browse_dataset.py by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1647
+- updata abcnet doc by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1658
+- update the dbnetpp\`s readme file by @zhuyue66 in https://github.com/open-mmlab/mmocr/pull/1626
+- Inferencer docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1744
+
+### Bug Fixes
+
+- nn.SmoothL1Loss beta can not be zero in PyTorch 1.13 version by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1616
+- ctc loss bug if target is empty by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1618
+- Add torch 1.13 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1619
+- Remove outdated tutorial link by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1627
+- Dev 1.x  some doc mistakes by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1630
+- Support custom font to visualize some languages (e.g. Korean) by @ProtossDragoon in https://github.com/open-mmlab/mmocr/pull/1567
+- db_module_loss，negative number encountered in sqrt by @KevinNuNu in https://github.com/open-mmlab/mmocr/pull/1640
+- Use int instead of np.int by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1636
+- Remove support for py3.6 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1660
+
+### New Contributors
+
+- @zhuyue66 made their first contribution in https://github.com/open-mmlab/mmocr/pull/1626
+- @KevinNuNu made their first contribution in https://github.com/open-mmlab/mmocr/pull/1630
+- @FerryHuang made their first contribution in https://github.com/open-mmlab/mmocr/pull/1639
+- @willpat1213 made their first contribution in https://github.com/open-mmlab/mmocr/pull/1448
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v1.0.0rc4...v1.0.0rc5
+
+## v1.0.0rc4 (12/06/2022)
+
+### Highlights
+
+1. Dataset Preparer can automatically generate base dataset configs at the end of the preparation process, and supports 6 more datasets: IIIT5k, CUTE80, ICDAR2013, ICDAR2015, SVT, SVTP.
+2. Introducing our `projects/` folder - implementing new models and features into OpenMMLab's algorithm libraries has long been complained to be troublesome due to the rigorous requirements on code quality, which could hinder the fast iteration of SOTA models and might discourage community members from sharing their latest outcome here. We now introduce `projects/` folder, where some experimental features, frameworks and models can be placed, only needed to satisfy the minimum requirement on the code quality. Everyone is welcome to post their implementation of any great ideas in this folder! We also add the first [example project](https://github.com/open-mmlab/mmocr/tree/dev-1.x/projects/example_project) to illustrate what we expect a good project to have (check out the raw content of README.md for more info!).
+3. Inside the `projects/` folder, we are releasing the preview version of ABCNet, which is the first implementation of text spotting models in MMOCR. It's inference-only now, but the full implementation will be available very soon.
+
+### New Features & Enhancements
+
+- Add SVT to dataset preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1521
+- Polish bbox2poly by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1532
+- Add SVTP to dataset preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1523
+- Iiit5k converter by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1530
+- Add cute80 to dataset preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1522
+- Add IC13 preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1531
+- Add 'Projects/' folder, and the first example project by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1524
+- Rename to {dataset-name}\_task_train/test by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1541
+- Add print_config.py to the tools by @IncludeMathH in https://github.com/open-mmlab/mmocr/pull/1547
+- Add get_md5 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1553
+- Add config generator by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1552
+- Support IC15_1811  by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1556
+- Update CT80 config by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1555
+- Add config generators to all textdet and textrecog configs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1560
+- Refactor TPS by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1240
+- Add TextSpottingConfigGenerator by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1561
+- Add common typing by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1596
+- Update textrecog config and readme  by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1597
+- Support head loss or postprocessor is None for only infer by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1594
+- Textspotting datasample by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1593
+- Simplify mono_gather by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1588
+- ABCNet v1 infer by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1598
+
+### Docs
+
+- Add Chinese Guidance on How to Add New Datasets to Dataset Preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1506
+- Update the qq group link by @vansin in https://github.com/open-mmlab/mmocr/pull/1569
+- Collapse some sections; update logo url by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1571
+- Update dataset preparer (CN) by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1591
+
+### Bug Fixes
+
+- Fix two bugs in dataset preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1513
+- Register bug of CLIPResNet by @jyshee in https://github.com/open-mmlab/mmocr/pull/1517
+- Being more conservative on Dataset Preparer by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1520
+- python -m pip upgrade in windows by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1525
+- Fix wildreceipt metafile by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1528
+- Fix Dataset Preparer Extract by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1527
+- Fix ICDARTxtParser by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1529
+- Fix Dataset Zoo Script by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1533
+- Fix crop without padding and recog metainfo delete unuse info by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1526
+- Automatically create nonexistent directory for base  configs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1535
+- Change mmcv.dump to mmengine.dump by @ProtossDragoon in https://github.com/open-mmlab/mmocr/pull/1540
+- mmocr.utils.typing -> mmocr.utils.typing_utils by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1538
+- Wildreceipt tests by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1546
+- Fix judge exist dir by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1542
+- Fix IC13 textdet config by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1563
+- Fix IC13 textrecog annotations by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1568
+- Auto scale lr by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1584
+- Fix icdar data parse for text containing separator by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1587
+- Fix textspotting ut by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1599
+- Fix TextSpottingConfigGenerator and TextSpottingDataConverter by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1604
+- Keep E2E Inferencer output simple by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1559
+
+### New Contributors
+
+- @jyshee made their first contribution in https://github.com/open-mmlab/mmocr/pull/1517
+- @ProtossDragoon made their first contribution in https://github.com/open-mmlab/mmocr/pull/1540
+- @IncludeMathH made their first contribution in https://github.com/open-mmlab/mmocr/pull/1547
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v1.0.0rc3...v1.0.0rc4
+
+## v1.0.0rc3 (11/03/2022)
+
+### Highlights
+
+1. We release several pretrained models using [oCLIP-ResNet](https://github.com/open-mmlab/mmocr/blob/1.x/configs/backbone/oclip/README.md) as the backbone, which is a ResNet variant trained with [oCLIP](https://www.ecva.net/papers/eccv_2022/papers_ECCV/papers/136880282.pdf) and can significantly boost the performance of text detection models.
+
+2. Preparing datasets is troublesome and tedious, especially in OCR domain where multiple datasets are usually required. In order to free our users from laborious work, we designed a [Dataset Preparer](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/data_prepare/dataset_preparer.html) to help you get a bunch of datasets ready for use, with only **one line of command**!  Dataset Preparer is also crafted to consist of a series of reusable modules, each responsible for handling one of the standardized phases throughout the preparation process, shortening the development cycle on supporting new datasets.
+
+### New Features & Enhancements
+
+- Add Dataset Preparer by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1484
+
+* support modified resnet structure used in oCLIP by @HannibalAPE in https://github.com/open-mmlab/mmocr/pull/1458
+* Add oCLIP configs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1509
+
+### Docs
+
+- Update install.md by @rogachevai in https://github.com/open-mmlab/mmocr/pull/1494
+- Refine some docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1455
+- Update some dataset preparer related docs by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1502
+- oclip readme by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1505
+
+### Bug Fixes
+
+- Fix offline_eval error caused by new data flow by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1500
+
+### New Contributors
+
+- @rogachevai made their first contribution in https://github.com/open-mmlab/mmocr/pull/1494
+- @HannibalAPE made their first contribution in https://github.com/open-mmlab/mmocr/pull/1458
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v1.0.0rc2...v1.0.0rc3
+
+## v1.0.0rc2 (10/14/2022)
+
+This release relaxes the version requirement of `MMEngine` to `>=0.1.0, < 1.0.0`.
+
+## v1.0.0rc1 (10/09/2022)
+
+### Highlights
+
+This release fixes a severe bug leading to inaccurate metric report in multi-GPU training.
+We release the weights for all the text recognition models in MMOCR 1.0 architecture. The inference shorthand for them are also added back to `ocr.py`. Besides, more documentation chapters are available now.
+
+### New Features & Enhancements
+
+- Simplify the Mask R-CNN config by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1391
+- auto scale lr by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1326
+- Update paths to pretrain weights by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1416
+- Streamline duplicated split_result in pan_postprocessor by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1418
+- Update model links in ocr.py and inference.md by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1431
+- Update rec configs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1417
+- Visualizer refine by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1411
+- Support get flops and parameters in dev-1.x by @vansin in https://github.com/open-mmlab/mmocr/pull/1414
+
+### Docs
+
+- intersphinx and api by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1367
+- Fix quickrun by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1374
+- Fix some docs issues by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1385
+- Add Documents for DataElements by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1381
+- config english by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1372
+- Metrics by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1399
+- Add version switcher to menu by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1407
+- Data Transforms by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1392
+- Fix inference docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1415
+- Fix some docs by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1410
+- Add maintenance plan to migration guide by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1413
+- Update Recog Models by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1402
+
+### Bug Fixes
+
+- clear metric.results only done in main process by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1379
+- Fix a bug in MMDetWrapper by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/1393
+- Fix browse_dataset.py by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/1398
+- ImgAugWrapper: Do not cilp polygons if not applicable by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1231
+- Fix CI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1365
+- Fix merge stage test by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1370
+- Del CI support for torch 1.5.1 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1371
+- Test windows cu111 by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1373
+- Fix windows CI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1387
+- Upgrade pre commit hooks by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/1429
+- Skip invalid augmented polygons in ImgAugWrapper by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/1434
+
+### New Contributors
+
+- @vansin made their first contribution in https://github.com/open-mmlab/mmocr/pull/1414
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v1.0.0rc0...v1.0.0rc1
+
+## v1.0.0rc0 (09/01/2022)
+
+We are excited to announce the release of MMOCR 1.0.0rc0.
+MMOCR 1.0.0rc0 is the first version of MMOCR 1.x, a part of the OpenMMLab 2.0 projects.
+Built upon the new [training engine](https://github.com/open-mmlab/mmengine),
+MMOCR 1.x unifies the interfaces of dataset, models, evaluation, and visualization with faster training and testing speed.
+
+### Highlights
+
+1. **New engines**. MMOCR 1.x is based on [MMEngine](https://github.com/open-mmlab/mmengine), which provides a general and powerful runner that allows more flexible customizations and significantly simplifies the entrypoints of high-level interfaces.
+
+2. **Unified interfaces**. As a part of the OpenMMLab 2.0 projects, MMOCR 1.x unifies and refactors the interfaces and internal logics of train, testing, datasets, models, evaluation, and visualization. All the OpenMMLab 2.0 projects share the same design in those interfaces and logics to allow the emergence of multi-task/modality algorithms.
+
+3. **Cross project calling**. Benefiting from the unified design, you can use the models implemented in other OpenMMLab projects, such as MMDet. We provide an example of how to use MMDetection's Mask R-CNN through `MMDetWrapper`. Check our documents for more details. More wrappers will be released in the future.
+
+4. **Stronger visualization**. We provide a series of useful tools which are mostly based on brand-new visualizers. As a result, it is more convenient for the users to explore the models and datasets now.
+
+5. **More documentation and tutorials**. We add a bunch of documentation and tutorials to help users get started more smoothly. Read it [here](https://mmocr.readthedocs.io/en/dev-1.x/).
+
+### Breaking Changes
+
+We briefly list the major breaking changes here.
+We will update the [migration guide](../migration.md) to provide complete details and migration instructions.
+
+#### Dependencies
+
+- MMOCR 1.x relies on MMEngine to run. MMEngine is a new foundational library for training deep learning models in OpenMMLab 2.0 models. The dependencies of file IO and training are migrated from MMCV 1.x to MMEngine.
+- MMOCR 1.x relies on MMCV>=2.0.0rc0. Although MMCV no longer maintains the training functionalities since 2.0.0rc0, MMOCR 1.x relies on the data transforms, CUDA operators, and image processing interfaces in MMCV. Note that the package `mmcv` is the version that provide pre-built CUDA operators and `mmcv-lite` does not since MMCV 2.0.0rc0, while `mmcv-full` has been deprecated.
+
+#### Training and testing
+
+- MMOCR 1.x uses Runner in [MMEngine](https://github.com/open-mmlab/mmengine) rather than that in MMCV. The new Runner implements and unifies the building logic of dataset, model, evaluation, and visualizer. Therefore, MMOCR 1.x no longer maintains the building logics of those modules in `mmocr.train.apis` and `tools/train.py`. Those code have been migrated into [MMEngine](https://github.com/open-mmlab/mmengine/blob/main/mmengine/runner/runner.py). Please refer to the [migration guide of Runner in MMEngine](https://mmengine.readthedocs.io/en/latest/migration/runner.html) for more details.
+- The Runner in MMEngine also supports testing and validation. The testing scripts are also simplified, which has similar logic as that in training scripts to build the runner.
+- The execution points of hooks in the new Runner have been enriched to allow more flexible customization. Please refer to the [migration guide of Hook in MMEngine](https://mmengine.readthedocs.io/en/latest/migration/hook.html) for more details.
+- Learning rate and momentum scheduling has been migrated from `Hook` to `Parameter Scheduler` in MMEngine. Please refer to the [migration guide of Parameter Scheduler in MMEngine](https://mmengine.readthedocs.io/en/latest/migration/param_scheduler.html) for more details.
+
+#### Configs
+
+- The [Runner in MMEngine](https://github.com/open-mmlab/mmengine/blob/main/mmengine/runner/runner.py) uses a different config structures to ease the understanding of the components in runner. Users can read the [config example of MMOCR](../user_guides/config.md) or refer to the [migration guide in MMEngine](https://mmengine.readthedocs.io/en/latest/migration/runner.html) for migration details.
+- The file names of configs and models are also refactored to follow the new rules unified across OpenMMLab 2.0 projects. Please refer to the [user guides of config](../user_guides/config.md) for more details.
+
+#### Dataset
+
+The Dataset classes implemented in MMOCR 1.x all inherits from the `BaseDetDataset`, which inherits from the [BaseDataset in MMEngine](https://mmengine.readthedocs.io/en/latest/advanced_tutorials/basedataset.html). There are several changes of Dataset in MMOCR 1.x.
+
+- All the datasets support to serialize the data list to reduce the memory when multiple workers are built to accelerate data loading.
+- The interfaces are changed accordingly.
+
+#### Data Transforms
+
+The data transforms in MMOCR 1.x all inherits from those in MMCV>=2.0.0rc0, which follows a new convention in OpenMMLab 2.0 projects.
+The changes are listed as below:
+
+- The interfaces are also changed. Please refer to the [API Reference](https://mmocr.readthedocs.io/en/dev-1.x/)
+- The functionality of some data transforms (e.g., `Resize`) are decomposed into several transforms.
+- The same data transforms in different OpenMMLab 2.0 libraries have the same augmentation implementation and the logic of the same arguments, i.e., `Resize` in MMDet 3.x and MMOCR 1.x will resize the image in the exact same manner given the same arguments.
+
+#### Model
+
+The models in MMOCR 1.x all inherits from `BaseModel` in MMEngine, which defines a new convention of models in OpenMMLab 2.0 projects. Users can refer to the [tutorial of model](https://mmengine.readthedocs.io/en/latest/tutorials/model.html) in MMengine for more details. Accordingly, there are several changes as the following:
+
+- The model interfaces, including the input and output formats, are significantly simplified and unified following the new convention in MMOCR 1.x. Specifically, all the input data in training and testing are packed into `inputs` and `data_samples`, where `inputs` contains model inputs like a list of image tensors, and `data_samples` contains other information of the current data sample such as ground truths and model predictions. In this way, different tasks in MMOCR 1.x can share the same input arguments, which makes the models more general and suitable for multi-task learning.
+- The model has a data preprocessor module, which is used to pre-process the input data of model. In MMOCR 1.x, the data preprocessor usually does necessary steps to form the input images into a batch, such as padding. It can also serve as a place for some special data augmentations or more efficient data transformations like normalization.
+- The internal logic of model have been changed. In MMOCR 0.x, model used `forward_train` and `simple_test` to deal with different model forward logics. In MMOCR 1.x and OpenMMLab 2.0, the forward function has three modes: `loss`, `predict`, and `tensor` for training, inference, and tracing or other purposes, respectively. The forward function calls `self.loss()`, `self.predict()`, and `self._forward()` given the modes `loss`, `predict`, and `tensor`, respectively.
+
+#### Evaluation
+
+MMOCR 1.x mainly implements corresponding metrics for each task, which are manipulated by [Evaluator](https://mmengine.readthedocs.io/en/latest/design/evaluator.html) to complete the evaluation.
+In addition, users can build evaluator in MMOCR 1.x to conduct offline evaluation, i.e., evaluate predictions that may not produced by MMOCR, prediction follows our dataset conventions. More details can be find in the [Evaluation Tutorial](https://mmengine.readthedocs.io/en/latest/tutorials/evaluation.html) in MMEngine.
+
+#### Visualization
+
+The functions of visualization in MMOCR 1.x are removed. Instead, in OpenMMLab 2.0 projects, we use [Visualizer](https://mmengine.readthedocs.io/en/latest/design/visualization.html) to visualize data. MMOCR 1.x implements `TextDetLocalVisualizer`, `TextRecogLocalVisualizer`, and `KIELocalVisualizer` to allow visualization of ground truths, model predictions, and feature maps, etc., at any place, for the three tasks supported in MMOCR. It also supports to dump the visualization data to any external visualization backends such as Tensorboard and Wandb. Check our [Visualization Document](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/visualization.html) for more details.
+
+### Improvements
+
+- Most models enjoy a performance improvement from the new framework and refactor of data transforms. For example, in MMOCR 1.x, DBNet-R50 achieves **0.854** hmean score on ICDAR 2015, while the counterpart can only get **0.840** hmean score in MMOCR 0.x.
+- Support mixed precision training of most of the models. However, the [rest models](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/train_test.html#mixed-precision-training) are not supported yet because the operators they used might not be representable in fp16. We will update the documentation and list the results of mixed precision training.
+
+### Ongoing changes
+
+1. Test-time augmentation: which was supported in MMOCR 0.x, is not implemented yet in this version due to limited time slot. We will support it in the following releases with a new and simplified design.
+2. Inference interfaces: a unified inference interfaces will be supported in the future to ease the use of released models.
+3. Interfaces of useful tools that can be used in notebook: more useful tools that implemented in the `tools/` directory will have their python interfaces so that they can be used through notebook and in downstream libraries.
+4. Documentation: we will add more design docs, tutorials, and migration guidance so that the community can deep dive into our new design, participate the future development, and smoothly migrate downstream libraries to MMOCR 1.x.
diff --git a/mmocr-dev-1.x/docs/en/notes/changelog_v0.x.md b/mmocr-dev-1.x/docs/en/notes/changelog_v0.x.md
new file mode 100644
index 0000000000000000000000000000000000000000..6b087b1d55cc73b5051fcd4272d97afa0bcbf753
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/notes/changelog_v0.x.md
@@ -0,0 +1,904 @@
+# Changelog
+
+## 0.6.0 (05/05/2022)
+
+### Highlights
+
+1. A new recognition algorithm [MASTER](https://arxiv.org/abs/1910.02562) has been added into MMOCR, which was the championship solution for the "ICDAR 2021 Competition on Scientific Table Image Recognition to Latex"! The model pre-trained on SynthText and MJSynth is available for testing! Credit to @JiaquanYe
+2. [DBNet++](https://arxiv.org/abs/2202.10304) has been released now! A new Adaptive Scale Fusion module has been equipped for feature enhancement. Benefiting from this, the new model achieved 2% better h-mean score than its predecessor on the ICDAR2015 dataset.
+3. Three more dataset converters are added: LSVT, RCTW and HierText. Check the dataset zoo ([Det](https://mmocr.readthedocs.io/en/latest/datasets/det.html#) & [Recog](https://mmocr.readthedocs.io/en/latest/datasets/recog.html) ) to explore further information.
+4. To enhance the data storage efficiency, MMOCR now supports loading both images and labels from .lmdb format annotations for the text recognition task. To enable such a feature, the new lmdb_converter.py is ready for use to pack your cropped images and labels into an lmdb file. For a detailed tutorial, please refer to the following sections and the [doc](https://mmocr.readthedocs.io/en/latest/tools.html#convert-text-recognition-dataset-to-lmdb-format).
+5. Testing models on multiple datasets is a widely used evaluation strategy. MMOCR now supports automatically reporting mean scores when there is more than one dataset to evaluate, which enables a more convenient comparison between checkpoints. [Doc](https://mmocr.readthedocs.io/en/latest/tutorials/dataset_types.html#getting-mean-evaluation-scores)
+6. Evaluation is more flexible and customizable now. For text detection tasks, you can set the score threshold range where the best results might come out. ([Doc](https://mmocr.readthedocs.io/en/latest/tutorials/dataset_types.html#evaluation)) If too many results are flooding your text recognition train log, you can trim it by specifying a subset of metrics in evaluation config. Check out the [Evaluation](https://mmocr.readthedocs.io/en/latest/tutorials/dataset_types.html#ocrdataset) section for details.
+7. MMOCR provides a script to convert the .json labels obtained by the popular annotation toolkit **Labelme** to MMOCR-supported data format. @Y-M-Y contributed a log analysis tool that helps users gain a better understanding of the entire training process. Read [tutorial docs](https://mmocr.readthedocs.io/en/latest/tools.html) to get started.
+
+### Lmdb Dataset
+
+Reading images or labels from files can be slow when data are excessive, e.g. on a scale of millions. Besides, in academia, most of the scene text recognition datasets are stored in lmdb format, including images and labels. To get closer to the mainstream practice and enhance the data storage efficiency, MMOCR now officially supports loading images and labels from lmdb datasets via a new pipeline [LoadImageFromLMDB](https://github.com/open-mmlab/mmocr/blob/878383b9de8d0e598f31fbb844ffcb0c305deb8b/mmocr/datasets/pipelines/loading.py#L140).
+This section is intended to serve as a quick walkthrough for you to master this update and apply it to facilitate your research.
+
+#### Specifications
+
+To better align with the academic community, MMOCR now requires the following specifications for lmdb datasets:
+
+- The parameter describing the data volume of the dataset is `num-samples` instead of `total_number` (deprecated).
+- Images and labels are stored with keys in the form of `image-000000001` and `label-000000001`, respectively.
+
+#### Usage
+
+1. Use existing academic lmdb datasets if they meet the specifications; or the tool provided by MMOCR to pack images & annotations into a lmdb dataset.
+
+- Previously, MMOCR had a function `txt2lmdb` (deprecated) that only supported converting labels to lmdb format. However, it is quite different from academic lmdb datasets, which usually contain both images and labels. Now MMOCR provides a new utility [lmdb_converter](https://github.com/open-mmlab/mmocr/blob/main/tools/data/utils/lmdb_converter.py) to convert recognition datasets with both images and labels to lmdb format.
+
+- Say that your recognition data in MMOCR's format are organized as follows. (See an example in [ocr_toy_dataset](https://github.com/open-mmlab/mmocr/tree/main/tests/data/ocr_toy_dataset)).
+
+  ```text
+  # Directory structure
+
+  ├──img_path
+  |      |—— img1.jpg
+  |      |—— img2.jpg
+  |      |—— ...
+  |——label.txt (or label.jsonl)
+
+  # Annotation format
+
+  label.txt:  img1.jpg HELLO
+              img2.jpg WORLD
+              ...
+
+  label.jsonl:    {'filename':'img1.jpg', 'text':'HELLO'}
+                  {'filename':'img2.jpg', 'text':'WORLD'}
+                  ...
+  ```
+
+- Then pack these files up:
+
+  ```bash
+  python tools/data/utils/lmdb_converter.py  {PATH_TO_LABEL} {OUTPUT_PATH} --i {PATH_TO_IMAGES}
+  ```
+
+- Check out [tools.md](https://github.com/open-mmlab/mmocr/blob/main/docs/en/tools.md) for more details.
+
+2. The second step is to modify the configuration files. For example, to train CRNN on MJ and ST datasets:
+
+- Set parser as `LineJsonParser` and `file_format` as 'lmdb' in [dataset config](https://github.com/open-mmlab/mmocr/blob/main/configs/_base_/recog_datasets/ST_MJ_train.py#L9)
+
+  ```python
+  # configs/_base_/recog_datasets/ST_MJ_train.py
+  train1 = dict(
+      type='OCRDataset',
+      img_prefix=train_img_prefix1,
+      ann_file=train_ann_file1,
+      loader=dict(
+          type='AnnFileLoader',
+          repeat=1,
+          file_format='lmdb',
+          parser=dict(
+              type='LineJsonParser',
+              keys=['filename', 'text'],
+          )),
+      pipeline=None,
+      test_mode=False)
+  ```
+
+- Use `LoadImageFromLMDB` in [pipeline](https://github.com/open-mmlab/mmocr/blob/main/configs/_base_/recog_pipelines/crnn_pipeline.py#L4):
+
+  ```python
+  # configs/_base_/recog_pipelines/crnn_pipeline.py
+  train_pipeline = [
+      dict(type='LoadImageFromLMDB', color_type='grayscale'),
+      ...
+  ```
+
+3. You are good to go! Start training and MMOCR will load data from your lmdb dataset.
+
+### New Features & Enhancements
+
+- Add analyze_logs in tools and its description in docs by @Y-M-Y in https://github.com/open-mmlab/mmocr/pull/899
+- Add LSVT Data Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/896
+- Add RCTW dataset converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/914
+- Support computing mean scores in UniformConcatDataset by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/981
+- Support loading images and labels from lmdb file by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/982
+- Add recog2lmdb and new toy dataset files by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/979
+- Add labelme converter for textdet and textrecog by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/972
+- Update CircleCI configs by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/918
+- Update Git Action by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/930
+- More customizable fields in dataloaders by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/933
+- Skip CIs when docs are modified by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/941
+- Rename Github tests, fix ignored paths by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/946
+- Support latest MMCV by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/959
+- Support dynamic threshold range in eval_hmean by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/962
+- Update the version requirement of mmdet in docker by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/966
+- Replace `opencv-python-headless` with `open-python` by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/970
+- Update Dataset Configs by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/980
+- Add SynthText dataset config by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/983
+- Automatically report mean scores when applicable by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/995
+- Add DBNet++ by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/973
+- Add MASTER by @JiaquanYe in https://github.com/open-mmlab/mmocr/pull/807
+- Allow choosing metrics to report in text recognition tasks by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/989
+- Add HierText converter by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/948
+- Fix lint_only in CircleCI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/998
+
+### Bug Fixes
+
+- Fix CircleCi Main Branch Accidentally Run PR Stage Test by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/927
+- Fix a deprecate warning about mmdet.datasets.pipelines.formating by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/944
+- Fix a Bug in ResNet plugin by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/967
+- revert a wrong setting in db_r18 cfg by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/978
+- Fix TotalText Anno version issue by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/945
+- Update installation step of `albumentations` by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/984
+- Fix ImgAug transform by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/949
+- Fix GPG key error in CI and docker by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/988
+- update label.lmdb by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/991
+- correct meta key by @garvan2021 in https://github.com/open-mmlab/mmocr/pull/926
+- Use new image by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/976
+- Fix Data Converter Issues by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/955
+
+### Docs
+
+- Update CONTRIBUTING.md by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/905
+- Fix the misleading description in test.py by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/908
+- Update recog.md for lmdb Generation by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/934
+- Add MMCV by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/954
+- Add wechat QR code to CN readme by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/960
+- Update CONTRIBUTING.md by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/947
+- Use QR codes from MMCV by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/971
+- Renew dataset_types.md by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/997
+
+### New Contributors
+
+- @Y-M-Y made their first contribution in https://github.com/open-mmlab/mmocr/pull/899
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v0.5.0...v0.6.0
+
+## 0.5.0 (31/03/2022)
+
+### Highlights
+
+1. MMOCR now supports SPACE recognition! (What a prominent feature!) Users only need to convert the recognition annotations that contain spaces from a plain `.txt` file to JSON line format `.jsonl`, and then revise a few configurations to enable the `LineJsonParser`. For more information, please read our step-by-step [tutorial](https://mmocr.readthedocs.io/en/latest/tutorials/blank_recog.html).
+2. [Tesseract](https://github.com/tesseract-ocr/tesseract) is now available in MMOCR! While MMOCR is more flexible to support various downstream tasks, users might sometimes not be satisfied with DL models and would like to turn to effective legacy solutions. Therefore, we offer this option in `mmocr.utils.ocr` by wrapping Tesseract as a detector and/or recognizer. Users can easily create an MMOCR object by `MMOCR(det=’Tesseract’, recog=’Tesseract’)`. Credit to @garvan2021
+3. We release data converters for **16** widely used OCR datasets, including multiple scenarios such as document, handwritten, and scene text. Now it is more convenient to generate annotation files for these datasets. Check the dataset zoo ( [Det](https://mmocr.readthedocs.io/en/latest/datasets/det.html#) & [Recog](https://mmocr.readthedocs.io/en/latest/datasets/recog.html) ) to explore further information.
+4. Special thanks to @EighteenSprings @BeyondYourself @yangrisheng, who had actively participated in documentation translation!
+
+### Migration Guide - ResNet
+
+Some refactoring processes are still going on. For text recognition models, we unified the [`ResNet-like` architectures](https://github.com/open-mmlab/mmocr/blob/72f945457324e700f0d14796dd10a51535c01a57/mmocr/models/textrecog/backbones/resnet.py) which are used as backbones. By introducing stage-wise and block-wise plugins, the refactored ResNet is highly flexible to support existing models, like ResNet31 and ResNet45, and other future designs of ResNet variants.
+
+#### Plugin
+
+- `Plugin` is a module category inherited from MMCV's implementation of `PLUGIN_LAYERS`, which can be inserted between each stage of ResNet or into a basicblock. You can find a simple implementation of plugin at [mmocr/models/textrecog/plugins/common.py](https://github.com/open-mmlab/mmocr/blob/72f945457324e700f0d14796dd10a51535c01a57/mmocr/models/textrecog/plugins/common.py), or click the button below.
+
+  <details close>
+    <summary>Plugin Example</summary>
+
+  ```python
+  @PLUGIN_LAYERS.register_module()
+  class Maxpool2d(nn.Module):
+      """A wrapper around nn.Maxpool2d().
+
+      Args:
+          kernel_size (int or tuple(int)): Kernel size for max pooling layer
+          stride (int or tuple(int)): Stride for max pooling layer
+          padding (int or tuple(int)): Padding for pooling layer
+      """
+
+      def __init__(self, kernel_size, stride, padding=0, **kwargs):
+          super(Maxpool2d, self).__init__()
+          self.model = nn.MaxPool2d(kernel_size, stride, padding)
+
+      def forward(self, x):
+          """
+          Args:
+              x (Tensor): Input feature map
+
+          Returns:
+              Tensor: The tensor after Maxpooling layer.
+          """
+          return self.model(x)
+  ```
+
+  </details>
+
+#### Stage-wise Plugins
+
+- ResNet is composed of stages, and each stage is composed of blocks. E.g., ResNet18 is composed of 4 stages, and each stage is composed of basicblocks. For each stage, we provide two ports to insert stage-wise plugins by giving `plugins` parameters in ResNet.
+
+  ```text
+  [port1: before stage] ---> [stage] ---> [port2: after stage]
+  ```
+
+- E.g. Using a ResNet with four stages as example. Suppose we want to insert an additional convolution layer before each stage, and an additional convolution layer at stage 1, 2, 4. Then you can define the special ResNet18 like this
+
+  ```python
+  resnet18_speical = ResNet(
+          # for simplicity, some required
+          # parameters are omitted
+          plugins=[
+              dict(
+                  cfg=dict(
+                  type='ConvModule',
+                  kernel_size=3,
+                  stride=1,
+                  padding=1,
+                  norm_cfg=dict(type='BN'),
+                  act_cfg=dict(type='ReLU')),
+                  stages=(True, True, True, True),
+                  position='before_stage')
+              dict(
+                  cfg=dict(
+                  type='ConvModule',
+                  kernel_size=3,
+                  stride=1,
+                  padding=1,
+                  norm_cfg=dict(type='BN'),
+                  act_cfg=dict(type='ReLU')),
+                  stages=(True, True, False, True),
+                  position='after_stage')
+          ])
+  ```
+
+- You can also insert more than one plugin in each port and those plugins will be executed in order. Let's take ResNet in [MASTER](https://arxiv.org/abs/1910.02562) as an example:
+
+  <details close>
+    <summary>Multiple Plugins Example</summary>
+
+  - ResNet in Master is based on ResNet31. And after each stage, a module named `GCAModule` will be used. The `GCAModule` is inserted before the stage-wise convolution layer in ResNet31. In conlusion, there will be two plugins at `after_stage` port in the same time.
+
+    ```python
+    resnet_master = ResNet(
+                    # for simplicity, some required
+                    # parameters are omitted
+                    plugins=[
+                        dict(
+                            cfg=dict(type='Maxpool2d', kernel_size=2, stride=(2, 2)),
+                            stages=(True, True, False, False),
+                            position='before_stage'),
+                        dict(
+                            cfg=dict(type='Maxpool2d', kernel_size=(2, 1), stride=(2, 1)),
+                            stages=(False, False, True, False),
+                            position='before_stage'),
+                        dict(
+                            cfg=dict(type='GCAModule', kernel_size=3, stride=1, padding=1),
+                            stages=[True, True, True, True],
+                            position='after_stage'),
+                        dict(
+                            cfg=dict(
+                                type='ConvModule',
+                                kernel_size=3,
+                                stride=1,
+                                padding=1,
+                                norm_cfg=dict(type='BN'),
+                                act_cfg=dict(type='ReLU')),
+                            stages=(True, True, True, True),
+                            position='after_stage')
+                    ])
+
+    ```
+
+    </details>
+
+  - In each plugin, we will pass two parameters (`in_channels`, `out_channels`) to support operations that need the information of current channels.
+
+#### Block-wise Plugin (Experimental)
+
+- We also refactored the `BasicBlock` used in ResNet. Now it can be customized with block-wise plugins. Check [here](https://github.com/open-mmlab/mmocr/blob/72f945457324e700f0d14796dd10a51535c01a57/mmocr/models/textrecog/layers/conv_layer.py) for more details.
+
+- BasicBlock is composed of two convolution layer in the main branch and a shortcut branch. We provide four ports to insert plugins.
+
+  ```text
+      [port1: before_conv1] ---> [conv1] --->
+      [port2: after_conv1] ---> [conv2] --->
+      [port3: after_conv2] ---> +(shortcut) ---> [port4: after_shortcut]
+  ```
+
+- In each plugin, we will pass a parameter `in_channels` to support operations that need the information of current channels.
+
+- E.g. Build a ResNet with customized BasicBlock with an additional convolution layer before conv1:
+
+  <details close>
+    <summary>Block-wise Plugin Example</summary>
+
+  ```python
+  resnet_31 = ResNet(
+          in_channels=3,
+          stem_channels=[64, 128],
+          block_cfgs=dict(type='BasicBlock'),
+          arch_layers=[1, 2, 5, 3],
+          arch_channels=[256, 256, 512, 512],
+          strides=[1, 1, 1, 1],
+          plugins=[
+              dict(
+                  cfg=dict(type='Maxpool2d',
+                  kernel_size=2,
+                  stride=(2, 2)),
+                  stages=(True, True, False, False),
+                  position='before_stage'),
+              dict(
+                  cfg=dict(type='Maxpool2d',
+                  kernel_size=(2, 1),
+                  stride=(2, 1)),
+                  stages=(False, False, True, False),
+                  position='before_stage'),
+              dict(
+                  cfg=dict(
+                  type='ConvModule',
+                  kernel_size=3,
+                  stride=1,
+                  padding=1,
+                  norm_cfg=dict(type='BN'),
+                  act_cfg=dict(type='ReLU')),
+                  stages=(True, True, True, True),
+                  position='after_stage')
+          ])
+  ```
+
+  </details>
+
+#### Full Examples
+
+<details close>
+<summary>ResNet without plugins</summary>
+
+- ResNet45 is used in ASTER and ABINet without any plugins.
+
+  ```python
+  resnet45_aster = ResNet(
+      in_channels=3,
+      stem_channels=[64, 128],
+      block_cfgs=dict(type='BasicBlock', use_conv1x1='True'),
+      arch_layers=[3, 4, 6, 6, 3],
+      arch_channels=[32, 64, 128, 256, 512],
+      strides=[(2, 2), (2, 2), (2, 1), (2, 1), (2, 1)])
+
+  resnet45_abi = ResNet(
+      in_channels=3,
+      stem_channels=32,
+      block_cfgs=dict(type='BasicBlock', use_conv1x1='True'),
+      arch_layers=[3, 4, 6, 6, 3],
+      arch_channels=[32, 64, 128, 256, 512],
+      strides=[2, 1, 2, 1, 1])
+  ```
+
+</details>
+<details close>
+<summary>ResNet with plugins</summary>
+
+- ResNet31 is a typical architecture to use stage-wise plugins. Before the first three stages, Maxpooling layer is used. After each stage, a convolution layer with BN and ReLU is used.
+
+  ```python
+  resnet_31 = ResNet(
+      in_channels=3,
+      stem_channels=[64, 128],
+      block_cfgs=dict(type='BasicBlock'),
+      arch_layers=[1, 2, 5, 3],
+      arch_channels=[256, 256, 512, 512],
+      strides=[1, 1, 1, 1],
+      plugins=[
+          dict(
+              cfg=dict(type='Maxpool2d',
+              kernel_size=2,
+              stride=(2, 2)),
+              stages=(True, True, False, False),
+              position='before_stage'),
+          dict(
+              cfg=dict(type='Maxpool2d',
+              kernel_size=(2, 1),
+              stride=(2, 1)),
+              stages=(False, False, True, False),
+              position='before_stage'),
+          dict(
+              cfg=dict(
+              type='ConvModule',
+              kernel_size=3,
+              stride=1,
+              padding=1,
+              norm_cfg=dict(type='BN'),
+              act_cfg=dict(type='ReLU')),
+              stages=(True, True, True, True),
+              position='after_stage')
+      ])
+  ```
+
+</details>
+
+### Migration Guide - Dataset Annotation Loader
+
+The annotation loaders, `LmdbLoader` and `HardDiskLoader`, are unified into `AnnFileLoader` for a more consistent design and wider support on different file formats and storage backends. `AnnFileLoader` can load the annotations from `disk`(default), `http` and `petrel` backend, and parse the annotation in `txt` or `lmdb` format. `LmdbLoader` and `HardDiskLoader` are deprecated, and users are recommended to modify their configs to use the new `AnnFileLoader`. Users can migrate their legacy loader `HardDiskLoader` referring to the following example:
+
+```python
+# Legacy config
+train = dict(
+    type='OCRDataset',
+    ...
+    loader=dict(
+        type='HardDiskLoader',
+        ...))
+
+# Suggested config
+train = dict(
+    type='OCRDataset',
+    ...
+    loader=dict(
+        type='AnnFileLoader',
+        file_storage_backend='disk',
+        file_format='txt',
+        ...))
+```
+
+Similarly, using `AnnFileLoader` with `file_format='lmdb'` instead of `LmdbLoader` is strongly recommended.
+
+### New Features & Enhancements
+
+- Update mmcv install by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/775
+- Upgrade isort by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/771
+- Automatically infer device for inference if not speicifed by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/781
+- Add open-mmlab precommit hooks by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/787
+- Add windows CI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/790
+- Add CurvedSyntext150k Converter by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/719
+- Add FUNSD Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/808
+- Support loading annotation file with petrel/http backend by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/793
+- Support different seeds on different ranks by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/820
+- Support json in recognition converter by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/844
+- Add args and docs for multi-machine training/testing by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/849
+- Add warning info for LineStrParser by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/850
+- Deploy openmmlab-bot by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/876
+- Add Tesserocr Inference  by @garvan2021 in https://github.com/open-mmlab/mmocr/pull/814
+- Add LV Dataset Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/871
+- Add SROIE Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/810
+- Add NAF Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/815
+- Add DeText Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/818
+- Add IMGUR Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/825
+- Add ILST Converter by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/833
+- Add KAIST Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/835
+- Add IC11 (Born-digital Images) Data Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/857
+- Add IC13 (Focused Scene Text) Data Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/861
+- Add BID Converter by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/862
+- Add Vintext Converter by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/864
+- Add MTWI Data Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/867
+- Add COCO Text v2 Data Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/872
+- Add ReCTS Data Converter by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/892
+- Refactor ResNets by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/809
+
+### Bug Fixes
+
+- Bump mmdet version to 2.20.0 in Dockerfile by @GPhilo in https://github.com/open-mmlab/mmocr/pull/763
+- Update mmdet version limit by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/773
+- Minimum version requirement of albumentations by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/769
+- Disable worker in the dataloader of gpu unit test by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/780
+- Standardize the type of torch.device in ocr.py by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/800
+- Use RECOGNIZER instead of DETECTORS by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/685
+- Add num_classes to configs of ABINet by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/805
+- Support loading space character from dict file by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/854
+- Description in tools/data/utils/txt2lmdb.py by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/870
+- ignore_index in SARLoss by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/869
+- Fix a bug that may cause inplace operation error by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/884
+- Use hyphen instead of underscores in script args by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/890
+
+### Docs
+
+- Add deprecation message for deploy tools by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/801
+- Reorganizing OpenMMLab projects in readme by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/806
+- Add demo/README_zh.md by @EighteenSprings in https://github.com/open-mmlab/mmocr/pull/802
+- Add detailed version requirement table by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/778
+- Correct misleading section title in training.md by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/819
+- Update README_zh-CN  document URL by @BeyondYourself in https://github.com/open-mmlab/mmocr/pull/823
+- translate testing.md. by @yangrisheng in https://github.com/open-mmlab/mmocr/pull/822
+- Fix confused description for load-from and resume-from by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/842
+- Add documents getting_started in docs/zh by @BeyondYourself in https://github.com/open-mmlab/mmocr/pull/841
+- Add the model serving translation document by @BeyondYourself in https://github.com/open-mmlab/mmocr/pull/845
+- Update docs about installation on Windows by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/852
+- Update tutorial notebook by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/853
+- Update Instructions for New Data Converters by @xinke-wang in https://github.com/open-mmlab/mmocr/pull/900
+- Brief installation instruction in README by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/897
+- update doc for ILST, VinText, BID by @Mountchicken in https://github.com/open-mmlab/mmocr/pull/902
+- Fix typos in readme by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/903
+- Recog dataset doc by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/893
+- Reorganize the directory structure section in det.md by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/894
+
+### New Contributors
+
+- @GPhilo made their first contribution in https://github.com/open-mmlab/mmocr/pull/763
+- @xinke-wang made their first contribution in https://github.com/open-mmlab/mmocr/pull/801
+- @EighteenSprings made their first contribution in https://github.com/open-mmlab/mmocr/pull/802
+- @BeyondYourself made their first contribution in https://github.com/open-mmlab/mmocr/pull/823
+- @yangrisheng made their first contribution in https://github.com/open-mmlab/mmocr/pull/822
+- @Mountchicken made their first contribution in https://github.com/open-mmlab/mmocr/pull/844
+- @garvan2021 made their first contribution in https://github.com/open-mmlab/mmocr/pull/814
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v0.4.1...v0.5.0
+
+## v0.4.1 (27/01/2022)
+
+### Highlights
+
+1. Visualizing edge weights in OpenSet KIE is now supported! https://github.com/open-mmlab/mmocr/pull/677
+2. Some configurations have been optimized to significantly speed up the training and testing processes! Don't worry - you can still tune these parameters in case these modifications do not work. https://github.com/open-mmlab/mmocr/pull/757
+3. Now you can use CPU to train/debug your model! https://github.com/open-mmlab/mmocr/pull/752
+4. We have fixed a severe bug that causes users unable to call `mmocr.apis.test` with our pre-built wheels. https://github.com/open-mmlab/mmocr/pull/667
+
+### New Features & Enhancements
+
+- Show edge score for openset kie by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/677
+- Download flake8 from github as pre-commit hooks by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/695
+- Deprecate the support for 'python setup.py test' by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/722
+- Disable multi-processing feature of cv2 to speed up data loading by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/721
+- Extend ctw1500 converter to support text fields by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/729
+- Extend totaltext converter to support text fields by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/728
+- Speed up training by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/739
+- Add setup multi-processing both in train and test.py by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/757
+- Support CPU training/testing by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/752
+- Support specify gpu for testing and training with gpu-id instead of gpu-ids and gpus  by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/756
+- Remove unnecessary custom_import from test.py  by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/758
+
+### Bug Fixes
+
+- Fix satrn onnxruntime test by @AllentDan in https://github.com/open-mmlab/mmocr/pull/679
+- Support both ConcatDataset and UniformConcatDataset by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/675
+- Fix bugs of show_results in single_gpu_test by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/667
+- Fix a bug for sar decoder when bi-rnn is used by @MhLiao in https://github.com/open-mmlab/mmocr/pull/690
+- Fix opencv version to avoid some bugs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/694
+- Fix py39 ci error by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/707
+- Update visualize.py by @TommyZihao in https://github.com/open-mmlab/mmocr/pull/715
+- Fix link of config by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/726
+- Use yaml.safe_load instead of load by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/753
+- Add necessary keys to test_pipelines to enable test-time visualization by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/754
+
+### Docs
+
+- Fix recog.md by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/674
+- Add config tutorial by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/683
+- Add MMSelfSup/MMRazor/MMDeploy in readme by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/692
+- Add recog & det model summary by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/693
+- Update docs link by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/710
+- add pull request template.md by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/711
+- Add website links to readme by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/731
+- update readme according to standard by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/742
+
+### New Contributors
+
+- @MhLiao made their first contribution in https://github.com/open-mmlab/mmocr/pull/690
+- @TommyZihao made their first contribution in https://github.com/open-mmlab/mmocr/pull/715
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v0.4.0...v0.4.1
+
+## v0.4.0 (15/12/2021)
+
+### Highlights
+
+1. We release a new text recognition model - [ABINet](https://arxiv.org/pdf/2103.06495.pdf) (CVPR 2021, Oral). With it dedicated model design and useful data augmentation transforms, ABINet can achieve the best performance on irregular text recognition tasks. [Check it out!](https://mmocr.readthedocs.io/en/latest/textrecog_models.html#read-like-humans-autonomous-bidirectional-and-iterative-language-modeling-for-scene-text-recognition)
+2. We are also working hard to fulfill the requests from our community.
+   [OpenSet KIE](https://mmocr.readthedocs.io/en/latest/kie_models.html#wildreceiptopenset) is one of the achievement, which extends the application of SDMGR from text node classification to node-pair relation extraction. We also provide
+   a demo script to convert WildReceipt to open set domain, though it cannot
+   take the full advantage of OpenSet format. For more information, please read our
+   [tutorial](https://mmocr.readthedocs.io/en/latest/tutorials/kie_closeset_openset.html).
+3. APIs of models can be exposed through TorchServe. [Docs](https://mmocr.readthedocs.io/en/latest/model_serving.html)
+
+### Breaking Changes & Migration Guide
+
+#### Postprocessor
+
+Some refactoring processes are still going on. For all text detection models, we unified their `decode` implementations into a new module category, `POSTPROCESSOR`, which is responsible for decoding different raw outputs into boundary instances. In all text detection configs, the `text_repr_type` argument in `bbox_head` is deprecated and will be removed in the future release.
+
+**Migration Guide**: Find a similar line from detection model's config:
+
+```
+text_repr_type=xxx,
+```
+
+And replace it with
+
+```
+postprocessor=dict(type='{MODEL_NAME}Postprocessor', text_repr_type=xxx)),
+```
+
+Take a snippet of PANet's config as an example. Before the change, its config for `bbox_head` looks like:
+
+```
+    bbox_head=dict(
+        type='PANHead',
+        text_repr_type='poly',
+        in_channels=[128, 128, 128, 128],
+        out_channels=6,
+        module_loss=dict(type='PANModuleLoss')),
+```
+
+Afterwards:
+
+```
+    bbox_head=dict(
+    type='PANHead',
+    in_channels=[128, 128, 128, 128],
+    out_channels=6,
+    module_loss=dict(type='PANModuleLoss'),
+    postprocessor=dict(type='PANPostprocessor', text_repr_type='poly')),
+```
+
+There are other postprocessors and each takes different arguments. Interested users can find their interfaces or implementations in `mmocr/models/textdet/postprocess` or through our [api docs](https://mmocr.readthedocs.io/en/latest/api.html#textdet-postprocess).
+
+#### New Config Structure
+
+We reorganized the `configs/` directory by extracting reusable sections into `configs/_base_`. Now the directory tree of `configs/_base_` is organized as follows:
+
+```
+_base_
+├── det_datasets
+├── det_models
+├── det_pipelines
+├── recog_datasets
+├── recog_models
+├── recog_pipelines
+└── schedules
+```
+
+Most of model configs are making full use of base configs now, which makes the overall structural clearer and facilitates fair
+comparison across models. Despite the seemingly significant hierarchical difference, **these changes would not break the backward compatibility** as the names of model configs remain the same.
+
+### New Features
+
+- Support openset kie by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/498
+- Add converter for the Open Images v5 text annotations by Krylov et al. by @baudm in https://github.com/open-mmlab/mmocr/pull/497
+- Support Chinese for kie show result by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/464
+- Add TorchServe support for text detection and recognition by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/522
+- Save filename in text detection test results by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/570
+- Add codespell pre-commit hook and fix typos by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/520
+- Avoid duplicate placeholder docs in CN by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/582
+- Save results to json file for kie. by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/589
+- Add SAR_CN to ocr.py by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/579
+- mim extension for windows by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/641
+- Support muitiple pipelines for different datasets by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/657
+- ABINet Framework by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/651
+
+### Refactoring
+
+- Refactor textrecog config structure by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/617
+- Refactor text detection config by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/626
+- refactor transformer modules by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/618
+- refactor textdet postprocess by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/640
+
+### Docs
+
+- C++ example section by @apiaccess21 in https://github.com/open-mmlab/mmocr/pull/593
+- install.md Chinese section by @A465539338 in https://github.com/open-mmlab/mmocr/pull/364
+- Add Chinese Translation of deployment.md. by @fatfishZhao in https://github.com/open-mmlab/mmocr/pull/506
+- Fix a model link and add the metafile for SATRN by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/473
+- Improve docs style by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/474
+- Enhancement & sync Chinese docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/492
+- TorchServe docs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/539
+- Update docs menu by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/564
+- Docs for KIE CloseSet & OpenSet by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/573
+- Fix broken links by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/576
+- Docstring for text recognition models by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/562
+- Add MMFlow & MIM by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/597
+- Add MMFewShot by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/621
+- Update model readme by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/604
+- Add input size check to model_inference by @mpena-vina in https://github.com/open-mmlab/mmocr/pull/633
+- Docstring for textdet models by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/561
+- Add MMHuman3D in readme by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/644
+- Use shared menu from theme instead by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/655
+- Refactor docs structure by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/662
+- Docs fix by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/664
+
+### Enhancements
+
+- Use bounding box around polygon instead of within polygon by @alexander-soare in https://github.com/open-mmlab/mmocr/pull/469
+- Add CITATION.cff by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/476
+- Add py3.9 CI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/475
+- update model-index.yml by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/484
+- Use container in CI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/502
+- CircleCI Setup by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/611
+- Remove unnecessary custom_import from train.py by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/603
+- Change the upper version of mmcv to 1.5.0 by @zhouzaida in https://github.com/open-mmlab/mmocr/pull/628
+- Update CircleCI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/631
+- Pass custom_hooks to MMCV by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/609
+- Skip CI when some specific files were changed by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/642
+- Add markdown linter in pre-commit hook by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/643
+- Use shape from loaded image by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/652
+- Cancel previous runs that are not completed by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/666
+
+### Bug Fixes
+
+- Modify algorithm "sar" weights path in metafile by @ShoupingShan in https://github.com/open-mmlab/mmocr/pull/581
+- Fix Cuda CI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/472
+- Fix image export in test.py for KIE models by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/486
+- Allow invalid polygons in intersection and union by default  by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/471
+- Update checkpoints' links for SATRN by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/518
+- Fix converting to onnx bug because of changing key from img_shape to resize_shape by @Harold-lkk in https://github.com/open-mmlab/mmocr/pull/523
+- Fix PyTorch 1.6 incompatible checkpoints by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/540
+- Fix paper field in metafiles by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/550
+- Unify recognition task names in metafiles by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/548
+- Fix py3.9 CI by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/563
+- Always map location to cpu when loading checkpoint by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/567
+- Fix wrong model builder in recog_test_imgs by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/574
+- Improve dbnet r50 by fixing img std by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/578
+- Fix resource warning: unclosed file by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/577
+- Fix bug that same start_point for different texts in draw_texts_by_pil by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/587
+- Keep original texts for kie by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/588
+- Fix random seed by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/600
+- Fix DBNet_r50 config by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/625
+- Change SBC case to DBC case by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/632
+- Fix kie demo by @innerlee in https://github.com/open-mmlab/mmocr/pull/610
+- fix type check by @cuhk-hbsun in https://github.com/open-mmlab/mmocr/pull/650
+- Remove depreciated image validator in totaltext converter by @gaotongxiao in https://github.com/open-mmlab/mmocr/pull/661
+- Fix change locals() dict by @Fei-Wang in https://github.com/open-mmlab/mmocr/pull/663
+- fix #614: textsnake targets by @HolyCrap96 in https://github.com/open-mmlab/mmocr/pull/660
+
+### New Contributors
+
+- @alexander-soare made their first contribution in https://github.com/open-mmlab/mmocr/pull/469
+- @A465539338 made their first contribution in https://github.com/open-mmlab/mmocr/pull/364
+- @fatfishZhao made their first contribution in https://github.com/open-mmlab/mmocr/pull/506
+- @baudm made their first contribution in https://github.com/open-mmlab/mmocr/pull/497
+- @ShoupingShan made their first contribution in https://github.com/open-mmlab/mmocr/pull/581
+- @apiaccess21 made their first contribution in https://github.com/open-mmlab/mmocr/pull/593
+- @zhouzaida made their first contribution in https://github.com/open-mmlab/mmocr/pull/628
+- @mpena-vina made their first contribution in https://github.com/open-mmlab/mmocr/pull/633
+- @Fei-Wang made their first contribution in https://github.com/open-mmlab/mmocr/pull/663
+
+**Full Changelog**: https://github.com/open-mmlab/mmocr/compare/v0.3.0...0.4.0
+
+## v0.3.0 (25/8/2021)
+
+### Highlights
+
+1. We add a new text recognition model -- SATRN! Its pretrained checkpoint achieves the best performance over other provided text recognition models. A lighter version of SATRN is also released which can obtain ~98% of the performance of the original model with only 45 MB in size. ([@2793145003](https://github.com/2793145003)) [#405](https://github.com/open-mmlab/mmocr/pull/405)
+2. Improve the demo script, `ocr.py`, which supports applying end-to-end text detection, text recognition and key information extraction models on images with easy-to-use commands. Users can find its full documentation in the demo section. ([@samayala22](https://github.com/samayala22), [@manjrekarom](https://github.com/manjrekarom)) [#371](https://github.com/open-mmlab/mmocr/pull/371), [#386](https://github.com/open-mmlab/mmocr/pull/386), [#400](https://github.com/open-mmlab/mmocr/pull/400), [#374](https://github.com/open-mmlab/mmocr/pull/374), [#428](https://github.com/open-mmlab/mmocr/pull/428)
+3. Our documentation is reorganized into a clearer structure. More useful contents are on the way! [#409](https://github.com/open-mmlab/mmocr/pull/409), [#454](https://github.com/open-mmlab/mmocr/pull/454)
+4. The requirement of `Polygon3` is removed since this project is no longer maintained or distributed. We unified all its references to equivalent substitutions in `shapely` instead. [#448](https://github.com/open-mmlab/mmocr/pull/448)
+
+### Breaking Changes & Migration Guide
+
+1. Upgrade version requirement of MMDetection to 2.14.0 to avoid bugs [#382](https://github.com/open-mmlab/mmocr/pull/382)
+2. MMOCR now has its own model and layer registries inherited from MMDetection's or MMCV's counterparts. ([#436](https://github.com/open-mmlab/mmocr/pull/436)) The modified hierarchical structure of the model registries are now organized as follows.
+
+```text
+mmcv.MODELS -> mmdet.BACKBONES -> BACKBONES
+mmcv.MODELS -> mmdet.NECKS -> NECKS
+mmcv.MODELS -> mmdet.ROI_EXTRACTORS -> ROI_EXTRACTORS
+mmcv.MODELS -> mmdet.HEADS -> HEADS
+mmcv.MODELS -> mmdet.LOSSES -> LOSSES
+mmcv.MODELS -> mmdet.DETECTORS -> DETECTORS
+mmcv.ACTIVATION_LAYERS -> ACTIVATION_LAYERS
+mmcv.UPSAMPLE_LAYERS -> UPSAMPLE_LAYERS
+```
+
+To migrate your old implementation to our new backend, you need to change the import path of any registries and their corresponding builder functions (including `build_detectors`) from `mmdet.models.builder` to `mmocr.models.builder`. If you have referred to any model or layer of MMDetection or MMCV in your model config, you need to add `mmdet.` or `mmcv.` prefix to its name to inform the model builder of the right namespace to work on.
+
+Interested users may check out [MMCV's tutorial on Registry](https://mmcv.readthedocs.io/en/latest/understand_mmcv/registry.html) for in-depth explanations on its mechanism.
+
+### New Features
+
+- Automatically replace SyncBN with BN for inference [#420](https://github.com/open-mmlab/mmocr/pull/420), [#453](https://github.com/open-mmlab/mmocr/pull/453)
+- Support batch inference for CRNN and SegOCR [#407](https://github.com/open-mmlab/mmocr/pull/407)
+- Support exporting documentation in pdf or epub format [#406](https://github.com/open-mmlab/mmocr/pull/406)
+- Support `persistent_workers` option in data loader [#459](https://github.com/open-mmlab/mmocr/pull/459)
+
+### Bug Fixes
+
+- Remove depreciated key in kie_test_imgs.py [#381](https://github.com/open-mmlab/mmocr/pull/381)
+- Fix dimension mismatch in batch testing/inference of DBNet [#383](https://github.com/open-mmlab/mmocr/pull/383)
+- Fix the problem of dice loss which stays at 1 with an empty target given [#408](https://github.com/open-mmlab/mmocr/pull/408)
+- Fix a wrong link in ocr.py ([@naarkhoo](https://github.com/naarkhoo)) [#417](https://github.com/open-mmlab/mmocr/pull/417)
+- Fix undesired assignment to "pretrained" in test.py [#418](https://github.com/open-mmlab/mmocr/pull/418)
+- Fix a problem in polygon generation of DBNet [#421](https://github.com/open-mmlab/mmocr/pull/421), [#443](https://github.com/open-mmlab/mmocr/pull/443)
+- Skip invalid annotations in totaltext_converter [#438](https://github.com/open-mmlab/mmocr/pull/438)
+- Add zero division handler in poly utils, remove Polygon3 [#448](https://github.com/open-mmlab/mmocr/pull/448)
+
+### Improvements
+
+- Replace lanms-proper with lanms-neo to support installation on Windows (with special thanks to [@gen-ko](https://github.com/gen-ko) who has re-distributed this package!)
+- Support MIM [#394](https://github.com/open-mmlab/mmocr/pull/394)
+- Add tests for PyTorch 1.9 in CI [#401](https://github.com/open-mmlab/mmocr/pull/401)
+- Enables fullscreen layout in readthedocs [#413](https://github.com/open-mmlab/mmocr/pull/413)
+- General documentation enhancement [#395](https://github.com/open-mmlab/mmocr/pull/395)
+- Update version checker [#427](https://github.com/open-mmlab/mmocr/pull/427)
+- Add copyright info [#439](https://github.com/open-mmlab/mmocr/pull/439)
+- Update citation information [#440](https://github.com/open-mmlab/mmocr/pull/440)
+
+### Contributors
+
+We thank [@2793145003](https://github.com/2793145003), [@samayala22](https://github.com/samayala22), [@manjrekarom](https://github.com/manjrekarom), [@naarkhoo](https://github.com/naarkhoo), [@gen-ko](https://github.com/gen-ko), [@duanjiaqi](https://github.com/duanjiaqi), [@gaotongxiao](https://github.com/gaotongxiao), [@cuhk-hbsun](https://github.com/cuhk-hbsun), [@innerlee](https://github.com/innerlee), [@wdsd641417025](https://github.com/wdsd641417025) for their contribution to this release!
+
+## v0.2.1 (20/7/2021)
+
+### Highlights
+
+1. Upgrade to use MMCV-full **>= 1.3.8** and MMDetection **>= 2.13.0** for latest features
+2. Add ONNX and TensorRT export tool, supporting the deployment of DBNet, PSENet, PANet and CRNN (experimental) [#278](https://github.com/open-mmlab/mmocr/pull/278), [#291](https://github.com/open-mmlab/mmocr/pull/291), [#300](https://github.com/open-mmlab/mmocr/pull/300), [#328](https://github.com/open-mmlab/mmocr/pull/328)
+3. Unified parameter initialization method which uses init_cfg in config files [#365](https://github.com/open-mmlab/mmocr/pull/365)
+
+### New Features
+
+- Support TextOCR dataset [#293](https://github.com/open-mmlab/mmocr/pull/293)
+- Support Total-Text dataset [#266](https://github.com/open-mmlab/mmocr/pull/266), [#273](https://github.com/open-mmlab/mmocr/pull/273), [#357](https://github.com/open-mmlab/mmocr/pull/357)
+- Support grouping text detection box into lines [#290](https://github.com/open-mmlab/mmocr/pull/290), [#304](https://github.com/open-mmlab/mmocr/pull/304)
+- Add benchmark_processing script that benchmarks data loading process [#261](https://github.com/open-mmlab/mmocr/pull/261)
+- Add SynthText preprocessor for text recognition models [#351](https://github.com/open-mmlab/mmocr/pull/351), [#361](https://github.com/open-mmlab/mmocr/pull/361)
+- Support batch inference during testing [#310](https://github.com/open-mmlab/mmocr/pull/310)
+- Add user-friendly OCR inference script [#366](https://github.com/open-mmlab/mmocr/pull/366)
+
+### Bug Fixes
+
+- Fix improper class ignorance in SDMGR Loss [#221](https://github.com/open-mmlab/mmocr/pull/221)
+- Fix potential numerical zero division error in DRRG [#224](https://github.com/open-mmlab/mmocr/pull/224)
+- Fix installing requirements with pip and mim [#242](https://github.com/open-mmlab/mmocr/pull/242)
+- Fix dynamic input error of DBNet [#269](https://github.com/open-mmlab/mmocr/pull/269)
+- Fix space parsing error in LineStrParser [#285](https://github.com/open-mmlab/mmocr/pull/285)
+- Fix textsnake decode error [#264](https://github.com/open-mmlab/mmocr/pull/264)
+- Correct isort setup [#288](https://github.com/open-mmlab/mmocr/pull/288)
+- Fix a bug in SDMGR config [#316](https://github.com/open-mmlab/mmocr/pull/316)
+- Fix kie_test_img for KIE nonvisual [#319](https://github.com/open-mmlab/mmocr/pull/319)
+- Fix metafiles [#342](https://github.com/open-mmlab/mmocr/pull/342)
+- Fix different device problem in FCENet [#334](https://github.com/open-mmlab/mmocr/pull/334)
+- Ignore improper tailing empty characters in annotation files [#358](https://github.com/open-mmlab/mmocr/pull/358)
+- Docs fixes [#247](https://github.com/open-mmlab/mmocr/pull/247), [#255](https://github.com/open-mmlab/mmocr/pull/255), [#265](https://github.com/open-mmlab/mmocr/pull/265), [#267](https://github.com/open-mmlab/mmocr/pull/267), [#268](https://github.com/open-mmlab/mmocr/pull/268), [#270](https://github.com/open-mmlab/mmocr/pull/270), [#276](https://github.com/open-mmlab/mmocr/pull/276), [#287](https://github.com/open-mmlab/mmocr/pull/287), [#330](https://github.com/open-mmlab/mmocr/pull/330), [#355](https://github.com/open-mmlab/mmocr/pull/355), [#367](https://github.com/open-mmlab/mmocr/pull/367)
+- Fix NRTR config [#356](https://github.com/open-mmlab/mmocr/pull/356), [#370](https://github.com/open-mmlab/mmocr/pull/370)
+
+### Improvements
+
+- Add backend for resizeocr [#244](https://github.com/open-mmlab/mmocr/pull/244)
+- Skip image processing pipelines in SDMGR novisual [#260](https://github.com/open-mmlab/mmocr/pull/260)
+- Speedup DBNet [#263](https://github.com/open-mmlab/mmocr/pull/263)
+- Update mmcv installation method in workflow [#323](https://github.com/open-mmlab/mmocr/pull/323)
+- Add part of Chinese documentations [#353](https://github.com/open-mmlab/mmocr/pull/353), [#362](https://github.com/open-mmlab/mmocr/pull/362)
+- Add support for ConcatDataset with two workflows [#348](https://github.com/open-mmlab/mmocr/pull/348)
+- Add list_from_file and list_to_file utils [#226](https://github.com/open-mmlab/mmocr/pull/226)
+- Speed up sort_vertex [#239](https://github.com/open-mmlab/mmocr/pull/239)
+- Support distributed evaluation of KIE [#234](https://github.com/open-mmlab/mmocr/pull/234)
+- Add pretrained FCENet on IC15 [#258](https://github.com/open-mmlab/mmocr/pull/258)
+- Support CPU for OCR demo [#227](https://github.com/open-mmlab/mmocr/pull/227)
+- Avoid extra image pre-processing steps [#375](https://github.com/open-mmlab/mmocr/pull/375)
+
+## v0.2.0 (18/5/2021)
+
+### Highlights
+
+1. Add the NER approach Bert-softmax (NAACL'2019)
+2. Add the text detection method DRRG (CVPR'2020)
+3. Add the text detection method FCENet (CVPR'2021)
+4. Increase the ease of use via adding text detection and recognition end-to-end demo, and colab online demo.
+5. Simplify the installation.
+
+### New Features
+
+- Add Bert-softmax for Ner task [#148](https://github.com/open-mmlab/mmocr/pull/148)
+- Add DRRG [#189](https://github.com/open-mmlab/mmocr/pull/189)
+- Add FCENet [#133](https://github.com/open-mmlab/mmocr/pull/133)
+- Add end-to-end demo [#105](https://github.com/open-mmlab/mmocr/pull/105)
+- Support batch inference [#86](https://github.com/open-mmlab/mmocr/pull/86) [#87](https://github.com/open-mmlab/mmocr/pull/87) [#178](https://github.com/open-mmlab/mmocr/pull/178)
+- Add TPS preprocessor for text recognition [#117](https://github.com/open-mmlab/mmocr/pull/117) [#135](https://github.com/open-mmlab/mmocr/pull/135)
+- Add demo documentation [#151](https://github.com/open-mmlab/mmocr/pull/151) [#166](https://github.com/open-mmlab/mmocr/pull/166) [#168](https://github.com/open-mmlab/mmocr/pull/168) [#170](https://github.com/open-mmlab/mmocr/pull/170) [#171](https://github.com/open-mmlab/mmocr/pull/171)
+- Add checkpoint for Chinese recognition [#156](https://github.com/open-mmlab/mmocr/pull/156)
+- Add metafile [#175](https://github.com/open-mmlab/mmocr/pull/175) [#176](https://github.com/open-mmlab/mmocr/pull/176) [#177](https://github.com/open-mmlab/mmocr/pull/177) [#182](https://github.com/open-mmlab/mmocr/pull/182) [#183](https://github.com/open-mmlab/mmocr/pull/183)
+- Add support for numpy array inference [#74](https://github.com/open-mmlab/mmocr/pull/74)
+
+### Bug Fixes
+
+- Fix the duplicated point bug due to transform for textsnake [#130](https://github.com/open-mmlab/mmocr/pull/130)
+- Fix CTC loss NaN [#159](https://github.com/open-mmlab/mmocr/pull/159)
+- Fix error raised if result is empty in demo [#144](https://github.com/open-mmlab/mmocr/pull/141)
+- Fix results missing if one image has a large number of boxes [#98](https://github.com/open-mmlab/mmocr/pull/98)
+- Fix package missing in dockerfile [#109](https://github.com/open-mmlab/mmocr/pull/109)
+
+### Improvements
+
+- Simplify installation procedure via removing compiling [#188](https://github.com/open-mmlab/mmocr/pull/188)
+- Speed up panet post processing so that it can detect dense texts [#188](https://github.com/open-mmlab/mmocr/pull/188)
+- Add zh-CN README [#70](https://github.com/open-mmlab/mmocr/pull/70) [#95](https://github.com/open-mmlab/mmocr/pull/95)
+- Support windows [#89](https://github.com/open-mmlab/mmocr/pull/89)
+- Add Colab [#147](https://github.com/open-mmlab/mmocr/pull/147) [#199](https://github.com/open-mmlab/mmocr/pull/199)
+- Add 1-step installation using conda environment [#193](https://github.com/open-mmlab/mmocr/pull/193) [#194](https://github.com/open-mmlab/mmocr/pull/194) [#195](https://github.com/open-mmlab/mmocr/pull/195)
+
+## v0.1.0 (7/4/2021)
+
+### Highlights
+
+- MMOCR is released.
+
+### Main Features
+
+- Support text detection, text recognition and the corresponding downstream tasks such as key information extraction.
+- For text detection, support both single-step (`PSENet`, `PANet`, `DBNet`, `TextSnake`) and two-step (`MaskRCNN`) methods.
+- For text recognition, support CTC-loss based method `CRNN`; Encoder-decoder (with attention) based methods `SAR`, `Robustscanner`; Segmentation based method `SegOCR`; Transformer based method `NRTR`.
+- For key information extraction, support GCN based method `SDMG-R`.
+- Provide checkpoints and log files for all of the methods above.
diff --git a/mmocr-dev-1.x/docs/en/notes/contribution_guide.md b/mmocr-dev-1.x/docs/en/notes/contribution_guide.md
new file mode 100644
index 0000000000000000000000000000000000000000..94cf4ce165196baeaff18c6615f1f683dfaa70eb
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/notes/contribution_guide.md
@@ -0,0 +1,134 @@
+# Contribution Guide
+
+OpenMMLab welcomes everyone who is interested in contributing to our projects and accepts contribution in the form of PR.
+
+## What is PR
+
+`PR` is the abbreviation of `Pull Request`. Here's the definition of `PR` in the [official document](https://docs.github.com/en/github/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests) of Github.
+
+```
+Pull requests let you tell others about changes you have pushed to a branch in a repository on GitHub. Once a pull request is opened, you can discuss and review the potential changes with collaborators and add follow-up commits before your changes are merged into the base branch.
+```
+
+## Basic Workflow
+
+1. Get the most recent codebase
+2. Checkout a new branch from `dev-1.x` branch, depending on the version of the codebase you want to contribute to.
+3. Commit your changes ([Don't forget to use pre-commit hooks!](#3-commit-your-changes))
+4. Push your changes and create a PR
+5. Discuss and review your code
+6. Merge your branch to `dev-1.x` branch
+
+## Procedures in detail
+
+### 1. Get the most recent codebase
+
+- When you work on your first PR
+
+  Fork the OpenMMLab repository: click the **fork** button at the top right corner of Github page
+  ![avatar](https://user-images.githubusercontent.com/22607038/195038780-06a46340-8376-4bde-a07f-2577f231a204.png)
+
+  Clone forked repository to local
+
+  ```bash
+  git clone git@github.com:XXX/mmocr.git
+  ```
+
+  Add source repository to upstream
+
+  ```bash
+  git remote add upstream git@github.com:open-mmlab/mmocr
+  ```
+
+- After your first PR
+
+  Checkout the latest branch of the local repository and pull the latest branch of the source repository. Here we assume that you are working on the `dev-1.x` branch.
+
+  ```bash
+  git checkout dev-1.x
+  git pull upstream dev-1.x
+  ```
+
+### 2. Checkout a new branch from `dev-1.x` branch
+
+```bash
+git checkout -b branchname
+```
+
+```{tip}
+To make commit history clear, we strongly recommend you checkout the `dev-1.x` branch before creating a new branch.
+```
+
+### 3. Commit your changes
+
+- If you are a first-time contributor, please install and initialize pre-commit hooks from the repository root directory first.
+
+  ```bash
+  pip install -U pre-commit
+  pre-commit install
+  ```
+
+- Commit your changes as usual. Pre-commit hooks will be triggered to stylize your code before each commit.
+
+  ```bash
+  # coding
+  git add [files]
+  git commit -m 'messages'
+  ```
+
+  ```{note}
+  Sometimes your code may be changed by pre-commit hooks. In this case, please remember to re-stage the modified files and commit again.
+  ```
+
+### 4. Push your changes to the forked repository and create a PR
+
+- Push the branch to your forked remote repository
+
+  ```bash
+  git push origin branchname
+  ```
+
+- Create a PR
+  ![avatar](https://user-images.githubusercontent.com/22607038/195053564-71bd3cb4-b8d4-4ed9-9075-051e138b7fd4.png)
+
+- Revise PR message template to describe your motivation and modifications made in this PR. You can also link the related issue to the PR manually in the PR message (For more information, checkout the [official guidance](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)).
+
+- Specifically, if you are contributing to `dev-1.x`, you will have to change the base branch of the PR to `dev-1.x` in the PR page, since the default base branch is `main`.
+
+  ![avatar](https://user-images.githubusercontent.com/22607038/195045928-f3ceedc8-0162-46a7-ae1a-7e22829fe189.png)
+
+- You can also ask a specific person to review the changes you've proposed.
+
+### 5. Discuss and review your code
+
+- Modify your codes according to reviewers' suggestions and then push your changes.
+
+### 6.  Merge your branch to `dev-1.x` branch and delete the branch
+
+- After the PR is merged by the maintainer, you can delete the branch you created in your forked repository.
+
+  ```bash
+  git branch -d branchname # delete local branch
+  git push origin --delete branchname # delete remote branch
+  ```
+
+## PR Specs
+
+1. Use [pre-commit](https://pre-commit.com) hook to avoid issues of code style
+
+2. One short-time branch should be matched with only one PR
+
+3. Accomplish a detailed change in one PR. Avoid large PR
+
+   - Bad: Support Faster R-CNN
+   - Acceptable: Add a box head to Faster R-CNN
+   - Good: Add a parameter to box head to support custom conv-layer number
+
+4. Provide clear and significant commit message
+
+5. Provide clear and meaningful PR description
+
+   - Task name should be clarified in title. The general format is: \[Prefix\] Short description of the PR (Suffix)
+   - Prefix: add new feature \[Feature\], fix bug \[Fix\], related to documents \[Docs\], in developing \[WIP\] (which will not be reviewed temporarily)
+   - Introduce main changes, results and influences on other modules in short description
+   - Associate related issues and pull requests with a milestone
diff --git a/mmocr-dev-1.x/docs/en/project_zoo.py b/mmocr-dev-1.x/docs/en/project_zoo.py
new file mode 100755
index 0000000000000000000000000000000000000000..ec5671793371fa22e754537b9fd12db22656ae42
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/project_zoo.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+import os.path as osp
+import re
+
+# This script reads /projects/selected.txt and generate projectzoo.md
+
+files = []
+
+project_zoo = """
+# SOTA Models
+
+Here are some selected project implementations that are not yet included in
+MMOCR package, but are ready to use.
+
+"""
+
+files = open('../../projects/selected.txt').readlines()
+
+for file in files:
+    file = file.strip()
+    with open(osp.join('../../', file)) as f:
+        content = f.read()
+
+    # Extract title
+    expr = '# (.*?)\n'
+    title = re.search(expr, content).group(1)
+    project_zoo += f'## {title}\n\n'
+
+    # Locate the description
+    expr = '## Description\n(.*?)##'
+    description = re.search(expr, content, re.DOTALL).group(1)
+    project_zoo += f'{description}\n'
+
+    # check milestone 1
+    expr = r'- \[(.?)\] Milestone 1'
+    state = re.search(expr, content, re.DOTALL).group(1)
+    infer_state = '✔' if state == 'x' else '❌'
+
+    # check milestone 2
+    expr = r'- \[(.?)\] Milestone 2'
+    state = re.search(expr, content, re.DOTALL).group(1)
+    training_state = '✔' if state == 'x' else '❌'
+
+    # add table
+    readme_link = f'https://github.com/open-mmlab/mmocr/blob/dev-1.x/{file}'
+    project_zoo += '### Status \n'
+    project_zoo += '| Inference | Train | README |\n'
+    project_zoo += '| --------- | -------- | ------ |\n'
+    project_zoo += f'|️{infer_state}|{training_state}|[link]({readme_link})|\n'
+
+with open('projectzoo.md', 'w') as f:
+    f.write(project_zoo)
diff --git a/mmocr-dev-1.x/docs/en/requirements.txt b/mmocr-dev-1.x/docs/en/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..89fbf86c01cb29f10f7e99c910248c4d5229da58
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/requirements.txt
@@ -0,0 +1,4 @@
+recommonmark
+sphinx
+sphinx_markdown_tables
+sphinx_rtd_theme
diff --git a/mmocr-dev-1.x/docs/en/stats.py b/mmocr-dev-1.x/docs/en/stats.py
new file mode 100755
index 0000000000000000000000000000000000000000..3238686937660a189b9db21b8653b519bb12627c
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/stats.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python
+# Copyright (c) OpenMMLab. All rights reserved.
+import functools as func
+import re
+from os.path import basename, splitext
+
+import numpy as np
+import titlecase
+from weight_list import gen_weight_list
+
+
+def title2anchor(name):
+    return re.sub(r'-+', '-', re.sub(r'[^a-zA-Z0-9]', '-',
+                                     name.strip().lower())).strip('-')
+
+
+# Count algorithms
+
+files = [
+    'backbones.md', 'textdet_models.md', 'textrecog_models.md', 'kie_models.md'
+]
+
+stats = []
+
+for f in files:
+    with open(f) as content_file:
+        content = content_file.read()
+
+    # Remove the blackquote notation from the paper link under the title
+    # for better layout in readthedocs
+    expr = r'(^## \s*?.*?\s+?)>\s*?(\[.*?\]\(.*?\))'
+    content = re.sub(expr, r'\1\2', content, flags=re.MULTILINE)
+    with open(f, 'w') as content_file:
+        content_file.write(content)
+
+    # title
+    title = content.split('\n')[0].replace('#', '')
+
+    # count papers
+    exclude_papertype = ['ABSTRACT', 'IMAGE']
+    exclude_expr = ''.join(f'(?!{s})' for s in exclude_papertype)
+    expr = rf'<!-- \[{exclude_expr}([A-Z]+?)\] -->'\
+        r'\s*\n.*?\btitle\s*=\s*{(.*?)}'
+    papers = {(papertype, titlecase.titlecase(paper.lower().strip()))
+              for (papertype, paper) in re.findall(expr, content, re.DOTALL)}
+    print(papers)
+    # paper links
+    revcontent = '\n'.join(list(reversed(content.splitlines())))
+    paperlinks = {}
+    for _, p in papers:
+        q = p.replace('\\', '\\\\').replace('?', '\\?')
+        paper_link = title2anchor(
+            re.search(
+                rf'\btitle\s*=\s*{{\s*{q}\s*}}.*?\n## (.*?)\s*[,;]?\s*\n',
+                revcontent, re.DOTALL | re.IGNORECASE).group(1))
+        paperlinks[p] = f'[{p}]({splitext(basename(f))[0]}.md#{paper_link})'
+    paperlist = '\n'.join(
+        sorted(f'    - [{t}] {paperlinks[x]}' for t, x in papers))
+    # count configs
+    configs = {
+        x.lower().strip()
+        for x in re.findall(r'https.*configs/.*\.py', content)
+    }
+
+    # count ckpts
+    ckpts = {
+        x.lower().strip()
+        for x in re.findall(r'https://download.*\.pth', content)
+        if 'mmocr' in x
+    }
+
+    statsmsg = f"""
+### [{title}]({f})
+
+* Number of checkpoints: {len(ckpts)}
+* Number of configs: {len(configs)}
+* Number of papers: {len(papers)}
+{paperlist}
+
+    """
+
+    stats.append((papers, configs, ckpts, statsmsg))
+
+allpapers = func.reduce(lambda a, b: a.union(b), [p for p, _, _, _ in stats])
+allconfigs = func.reduce(lambda a, b: a.union(b), [c for _, c, _, _ in stats])
+allckpts = func.reduce(lambda a, b: a.union(b), [c for _, _, c, _ in stats])
+msglist = '\n'.join(x for _, _, _, x in stats)
+
+papertypes, papercounts = np.unique([t for t, _ in allpapers],
+                                    return_counts=True)
+countstr = '\n'.join(
+    [f'   - {t}: {c}' for t, c in zip(papertypes, papercounts)])
+
+# get model list
+weight_list = gen_weight_list()
+
+modelzoo = f"""
+# Overview
+
+## Weights
+
+Here are the list of weights available for
+[Inference](user_guides/inference.md).
+
+For the ease of reference, some weights may have shorter aliases, which will be
+separated by `/` in the table.
+For example, "`DB_r18 / dbnet_resnet18_fpnc_1200e_icdar2015`" means that you can
+use either `DB_r18` or `dbnet_resnet18_fpnc_1200e_icdar2015`
+to initialize the Inferencer:
+
+```python
+>>> from mmocr.apis import TextDetInferencer
+>>> inferencer = TextDetInferencer(model='DB_r18')
+>>> # equivalent to
+>>> inferencer = TextDetInferencer(model='dbnet_resnet18_fpnc_1200e_icdar2015')
+```
+
+{weight_list}
+
+## Statistics
+
+* Number of checkpoints: {len(allckpts)}
+* Number of configs: {len(allconfigs)}
+* Number of papers: {len(allpapers)}
+{countstr}
+
+{msglist}
+"""  # noqa
+
+with open('modelzoo.md', 'w') as f:
+    f.write(modelzoo)
diff --git a/mmocr-dev-1.x/docs/en/switch_language.md b/mmocr-dev-1.x/docs/en/switch_language.md
new file mode 100644
index 0000000000000000000000000000000000000000..7baa29992eb3b36ab2804b577d3bb76db8cc4233
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/switch_language.md
@@ -0,0 +1,3 @@
+## <a href='https://mmocr.readthedocs.io/en/dev-1.x/'>English</a>
+
+## <a href='https://mmocr.readthedocs.io/zh_CN/dev-1.x/'>简体中文</a>
diff --git a/mmocr-dev-1.x/docs/en/user_guides/config.md b/mmocr-dev-1.x/docs/en/user_guides/config.md
new file mode 100644
index 0000000000000000000000000000000000000000..c2573d8488c67173e23d0b50258bb970dbe48e22
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/config.md
@@ -0,0 +1,707 @@
+# Config
+
+MMOCR mainly uses Python files as configuration files. The design of its configuration file system integrates the ideas of modularity and inheritance to facilitate various experiments.
+
+## Common Usage
+
+```{note}
+This section is recommended to be read together with the primary usage in {external+mmengine:doc}`MMEngine: Config <tutorials/config>`.
+```
+
+There are three most common operations in MMOCR: inheritance of configuration files, reference to `_base_` variables, and modification of `_base_` variables. Config provides two syntaxes for inheriting and modifying `_base_`, one for Python, Json, and Yaml, and one for Python configuration files only. In MMOCR, we **prefer the Python-only syntax**, so this will be the basis for further description.
+
+The `configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py` is used as an example to illustrate the three common uses.
+
+```Python
+_base_ = [
+    '_base_dbnet_resnet18_fpnc.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+```
+
+### Configuration Inheritance
+
+There is an inheritance mechanism for configuration files, i.e. one configuration file A can use another configuration file B as its base and inherit all the fields directly from it, thus avoiding a lot of copy-pasting.
+
+In `dbnet_resnet18_fpnc_1200e_icdar2015.py` you can see that
+
+```Python
+_base_ = [
+    '_base_dbnet_resnet18_fpnc.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+```
+
+The above statement reads all the base configuration files in the list, and all the fields in them are loaded into `dbnet_resnet18_fpnc_1200e_icdar2015.py`. We can see the structure of the configuration file after it has been parsed by running the following statement in a Python interpretation.
+
+```Python
+from mmengine import Config
+db_config = Config.fromfile('configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py')
+print(db_config)
+```
+
+It can be found that the parsed configuration contains all the fields and information in the base configuration.
+
+```{note}
+Variables with the same name cannot exist in each `_base_` profile.
+```
+
+### `_base_` Variable References
+
+Sometimes we may need to reference some fields in the `_base_` configuration directly in order to avoid duplicate definitions. Suppose we want to get the variable `pseudo` in the `_base_` configuration, we can get the variable in the `_base_` configuration directly via `_base_.pseudo`.
+
+This syntax has been used extensively in the configuration of MMOCR, and the dataset and pipeline configurations for each model in MMOCR are referenced in the *_base_* configuration. For example,
+
+```Python
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+# ...
+train_dataloader = dict(
+    # ...
+    dataset=icdar2015_textdet_train)
+```
+
+<div id="base_variable_modification"></div>
+
+### `_base_` Variable Modification
+
+In MMOCR, different algorithms usually have different pipelines in different datasets, so there are often scenarios to modify the `pipeline` in the dataset. There are also many scenarios where you need to modify variables in the `_base_` configuration, for example, modifying the training strategy of an algorithm, replacing some modules of an algorithm(backbone, etc.). Users can directly modify the referenced `_base_` variables using Python syntax. For dict, we also provide a method similar to class attribute modification to modify the contents of the dictionary directly.
+
+1. Dictionary
+
+   Here is an example of modifying `pipeline` in a dataset.
+
+   The dictionary can be modified using Python syntax:
+
+   ```Python
+   # Get the dataset in _base_
+   icdar2015_textdet_train = _base_.icdar2015_textdet_train
+   # You can modify the variables directly with Python's update
+   icdar2015_textdet_train.update(pipeline=_base_.train_pipeline)
+   ```
+
+   It can also be modified in the same way as changing Python class attributes.
+
+   ```Python
+   # Get the dataset in _base_
+   icdar2015_textdet_train = _base_.icdar2015_textdet_train
+   # The class property method is modified
+   icdar2015_textdet_train.pipeline = _base_.train_pipeline
+   ```
+
+2. List
+
+   Suppose the variable `pseudo = [1, 2, 3]` in the `_base_` configuration needs to be modified to `[1, 2, 4]`:
+
+   ```Python
+   # pseudo.py
+   pseudo = [1, 2, 3]
+   ```
+
+   Can be rewritten directly as.
+
+   ```Python
+   _base_ = ['pseudo.py']
+   pseudo = [1, 2, 4]
+   ```
+
+   Or modify the list using Python syntax:
+
+   ```Python
+   _base_ = ['pseudo.py']
+   pseudo = _base_.pseudo
+   pseudo[2] = 4
+   ```
+
+### Command Line Modification
+
+Sometimes we only want to fix part of the configuration and do not want to modify the configuration file itself. For example, if you want to change the learning rate during an experiment but do not want to write a new configuration file, you can pass in parameters on the command line to override the relevant configuration.
+
+We can pass `--cfg-options` on the command line and modify the corresponding fields directly with the arguments after it. For example, we can run the following command to modify the learning rate temporarily for this training session.
+
+```Shell
+python tools/train.py example.py --cfg-options optim_wrapper.optimizer.lr=1
+```
+
+For more detailed usage, refer to {external+mmengine:doc}`MMEngine: Command Line Modification <tutorials/config>`.
+
+## Configuration Content
+
+With config files and Registry, MMOCR can modify the training parameters as well as the model configuration without invading the code. Specifically, users can customize the following modules in the configuration file: environment configuration, hook configuration, log configuration, training strategy configuration, data-related configuration, model-related configuration, evaluation configuration, and visualization configuration.
+
+This document will take the text detection algorithm `DBNet` and the text recognition algorithm `CRNN` as examples to introduce the contents of Config in detail.
+
+<div id="env_config"></div>
+
+### Environment Configuration
+
+```Python
+default_scope = 'mmocr'
+env_cfg = dict(
+    cudnn_benchmark=True,
+    mp_cfg=dict(mp_start_method='fork', opencv_num_threads=0),
+    dist_cfg=dict(backend='nccl'))
+randomness = dict(seed=None)
+```
+
+There are three main components:
+
+- Set the default `scope` of all registries to `mmocr`, ensuring that all modules are searched first from the `MMOCR` codebase. If the module does not exist, the search will continue from the upstream algorithm libraries `MMEngine` and `MMCV`, see {external+mmengine:doc}`MMEngine: Registry <tutorials/registry>` for more details.
+
+- `env_cfg` configures the distributed environment, see {external+mmengine:doc}`MMEngine: Runner <tutorials/runner>` for more details.
+
+- `randomness`: Some settings to make the experiment as reproducible
+  as possible like seed and deterministic. See {external+mmengine:doc}`MMEngine: Runner <tutorials/runner>` for more details.
+
+<div id="hook_config"></div>
+
+### Hook Configuration
+
+Hooks are divided into two main parts, default hooks, which are required for all tasks to run, and custom hooks, which generally serve specific algorithms or specific tasks (there are no custom hooks in MMOCR so far).
+
+```Python
+default_hooks = dict(
+    timer=dict(type='IterTimerHook'), # Time recording, including data time as well as model inference time
+    logger=dict(type='LoggerHook', interval=1), # Collect logs from different components
+    param_scheduler=dict(type='ParamSchedulerHook'), # Update some hyper-parameters in optimizer
+    checkpoint=dict(type='CheckpointHook', interval=1),# Save checkpoint. `interval` control save interval
+    sampler_seed=dict(type='DistSamplerSeedHook'), # Data-loading sampler for distributed training.
+    sync_buffer=dict(type='SyncBuffersHook'), # Synchronize buffer in case of distributed training
+    visualization=dict( # Visualize the results of val and test
+        type='VisualizationHook',
+        interval=1,
+        enable=False,
+        show=False,
+        draw_gt=False,
+        draw_pred=False))
+ custom_hooks = []
+```
+
+Here is a brief description of a few hooks whose parameters may be changed frequently. For a general modification method, refer to <a href="#base_variable_modification">Modify configuration</a>.
+
+- `LoggerHook`: Used to configure the behavior of the logger. For example, by modifying `interval` you can control the interval of log printing, so that the log is printed once per `interval` iteration, for more settings refer to [LoggerHook API](mmengine.hooks.LoggerHook).
+
+- `CheckpointHook`: Used to configure checkpoint-related behavior, such as saving optimal and/or latest weights. You can also modify `interval` to control the checkpoint saving interval. More settings can be found in [CheckpointHook API](mmengine.hooks.CheckpointHook)
+
+- `VisualizationHook`: Used to configure visualization-related behavior, such as visualizing predicted results during validation or testing. **Default is off**. This Hook also depends on [Visualization Configuration](#Visualization-configuration). You can refer to [Visualizer](visualization.md) for more details. For more configuration, you can refer to [VisualizationHook API](mmocr.engine.hooks.VisualizationHook).
+
+If you want to learn more about the configuration of the default hooks and their functions, you can refer to {external+mmengine:doc}`MMEngine: Hooks <tutorials/hook>`.
+
+<div id="log_config"></div>
+
+### Log Configuration
+
+This section is mainly used to configure the log level and the log processor.
+
+```Python
+log_level = 'INFO' # Logging Level
+log_processor = dict(type='LogProcessor',
+                        window_size=10,
+                        by_epoch=True)
+```
+
+- The logging severity level is the same as that of {external+python:doc}`Python: logging <library/logging>`
+
+- The log processor is mainly used to control the format of the output, detailed functions can be found in {external+mmengine:doc}`MMEngine: logging <advanced_tutorials/logging>`.
+
+  - `by_epoch=True` indicates that the logs are output in accordance to "epoch", and the log format needs to be consistent with the `type='EpochBasedTrainLoop'` parameter in `train_cfg`. For example, if you want to output logs by iteration number, you need to set ` by_epoch=False` in `log_processor` and `type='IterBasedTrainLoop'` in `train_cfg`.
+
+  - `window_size` indicates the smoothing window of the loss, i.e. the average value of the various losses for the last `window_size` iterations. the final loss value printed in logger is the average of all the losses.
+
+  <div id="schedule_config"></div>
+
+### Training Strategy Configuration
+
+This section mainly contains optimizer settings, learning rate schedules and `Loop` settings.
+
+Training strategies usually vary for different tasks (text detection, text recognition, key information extraction). Here we explain the example configuration in `CRNN`, which is a text recognition model.
+
+```Python
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper', optimizer=dict(type='Adadelta', lr=1.0))
+param_scheduler = [dict(type='ConstantLR', factor=1.0)]
+train_cfg = dict(type='EpochBasedTrainLoop',
+                    max_epochs=5, # train epochs
+                    val_interval=1) # val interval
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+```
+
+- `optim_wrapper` : It contains two main parts, OptimWrapper and Optimizer. Detailed usage information can be found in {external+mmengine:doc}`MMEngine: Optimizer Wrapper <tutorials/optim_wrapper>`.
+
+  - The Optimizer wrapper supports different training strategies, including mixed-accuracy training (AMP), gradient accumulation, and gradient truncation.
+
+  - All PyTorch optimizers are supported in the optimizer settings. All supported optimizers are available in {external+torch:ref}`PyTorch Optimizer List <optim:algorithms>`.
+
+- `param_scheduler` : learning rate tuning strategy, supports most of the learning rate schedulers in PyTorch, such as `ExponentialLR`, `LinearLR`, `StepLR`, `MultiStepLR`, etc., and is used in much the same way, see [scheduler interface](mmengine.optim.scheduler), and more features can be found in the {external+mmengine:doc}`MMEngine: Optimizer Parameter Tuning Strategy <tutorials/param_scheduler>`.
+
+- `train/test/val_cfg` : the execution flow of the task, MMEngine provides four kinds of flow: `EpochBasedTrainLoop`, `IterBasedTrainLoop`, `ValLoop`, `TestLoop` More can be found in {external+mmengine:doc}`MMEngine: loop controller <design/runner>`.
+
+### Data-related Configuration
+
+<div id="dataset_config"></id>
+
+#### Dataset Configuration
+
+It is mainly about two parts.
+
+- The location of the dataset(s), including images and annotation files.
+
+- Data augmentation related configurations. In the OCR domain, data augmentation is usually strongly associated with the model.
+
+More parameter configurations can be found in [Data Base Class](#TODO).
+
+The naming convention for dataset fields in MMOCR is
+
+```Python
+{dataset}_{task}_{train/val/test} = dict(...)
+```
+
+- dataset: See [dataset abbreviations](#TODO)
+
+- task: `det`(text detection), `rec`(text recognition), `kie`(key information extraction)
+
+- train/val/test: Dataset split.
+
+For example, for text recognition tasks, Syn90k is used as the training set, while icdar2013 and icdar2015 serve as the test sets. These are configured as follows.
+
+```Python
+# text recognition dataset configuration
+mjsynth_textrecog_train = dict(
+    type='OCRDataset',
+    data_root='data/rec/Syn90k/',
+    data_prefix=dict(img_path='mnt/ramdisk/max/90kDICT32px'),
+    ann_file='train_labels.json',
+    test_mode=False,
+    pipeline=None)
+
+icdar2013_textrecog_test = dict(
+    type='OCRDataset',
+    data_root='data/rec/icdar_2013/',
+    data_prefix=dict(img_path='Challenge2_Test_Task3_Images/'),
+    ann_file='test_labels.json',
+    test_mode=True,
+    pipeline=None)
+
+icdar2015_textrecog_test = dict(
+    type='OCRDataset',
+    data_root='data/rec/icdar_2015/',
+    data_prefix=dict(img_path='ch4_test_word_images_gt/'),
+    ann_file='test_labels.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+<div id="pipeline_config"></div>
+
+#### Data Pipeline Configuration
+
+In MMOCR, dataset construction and data preparation are decoupled from each other. In other words, dataset classes such as `OCRDataset` are responsible for reading and parsing annotation files, while Data Transforms further implement data loading, data augmentation, data formatting and other related functions.
+
+In general, there are different augmentation strategies for training and testing, so there are usually `training_pipeline` and `testing_pipeline`. More information can be found in [Data Transforms](../basic_concepts/transforms.md)
+
+- The data augmentation process of the training pipeline is usually: data loading (LoadImageFromFile) -> annotation information loading (LoadXXXAnntation) -> data augmentation -> data formatting (PackXXXInputs).
+
+- The data augmentation flow of the test pipeline is usually: Data Loading (LoadImageFromFile) -> Data Augmentation -> Annotation Loading (LoadXXXAnntation) -> Data Formatting (PackXXXInputs).
+
+Due to the specificity of the OCR task, different models have different data augmentation techniques, and even the same model can have different data augmentation strategies for different datasets. Take `CRNN` as an example.
+
+```Python
+# Data Augmentation
+train_pipeline = [
+    dict(
+        type='LoadImageFromFile',
+        color_type='grayscale',
+        ignore_empty=True,
+        min_size=5),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(type='Resize', scale=(100, 32), keep_ratio=False),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+test_pipeline = [
+    dict(
+        type='LoadImageFromFile',
+        color_type='grayscale'),
+    dict(
+        type='RescaleToHeight',
+        height=32,
+        min_width=32,
+        max_width=None,
+        width_divisor=16),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+```
+
+#### Dataloader Configuration
+
+The main configuration information needed to construct the dataset loader (dataloader), see {external+torch:doc}`PyTorch DataLoader <data>` for more tutorials.
+
+```Python
+# Dataloader
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=[mjsynth_textrecog_train],
+        pipeline=train_pipeline))
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=[icdar2013_textrecog_test, icdar2015_textrecog_test],
+        pipeline=test_pipeline))
+test_dataloader = val_dataloader
+```
+
+### Model-related Configuration
+
+<div id="model_config"></div>
+
+#### Network Configuration
+
+This section configures the network architecture. Different algorithmic tasks use different network architectures. Find more info about network architecture in [structures](../basic_concepts/structures.md)
+
+##### Text Detection
+
+Text detection consists of several parts:
+
+- `data_preprocessor`: [data_preprocessor](mmocr.models.textdet.data_preprocessors.TextDetDataPreprocessor)
+- `backbone`: backbone network configuration
+- `neck`: neck network configuration
+- `det_head`: detection head network configuration
+  - `module_loss`: module loss configuration
+  - `postprocessor`: postprocessor configuration
+
+We present the model configuration in text detection using DBNet as an example.
+
+```Python
+model = dict(
+    type='DBNet',
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32)
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=18,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet18'),
+        norm_eval=False,
+        style='caffe'),
+    neck=dict(
+        type='FPNC', in_channels=[64, 128, 256, 512], lateral_channels=256),
+    det_head=dict(
+        type='DBHead',
+        in_channels=256,
+        module_loss=dict(type='DBModuleLoss'),
+        postprocessor=dict(type='DBPostprocessor', text_repr_type='quad')))
+```
+
+##### Text Recognition
+
+Text recognition mainly contains:
+
+- `data_processor`: [data preprocessor configuration](mmocr.models.textrecog.data_processors.TextRecDataPreprocessor)
+- `preprocessor`: network preprocessor configuration, e.g. TPS
+- `backbone`: backbone configuration
+- `encoder`: encoder configuration
+- `decoder`: decoder configuration
+  - `module_loss`: decoder module loss configuration
+  - `postprocessor`: decoder postprocessor configuration
+  - `dictionary`: dictionary configuration
+
+Using CRNN as an example.
+
+```Python
+# model
+model = dict(
+   type='CRNN',
+   data_preprocessor=dict(
+        type='TextRecogDataPreprocessor', mean=[127], std=[127])
+    preprocessor=None,
+    backbone=dict(type='VeryDeepVgg', leaky_relu=False, input_channels=1),
+    encoder=None,
+    decoder=dict(
+        type='CRNNDecoder',
+        in_channels=512,
+        rnn_flag=True,
+        module_loss=dict(type='CTCModuleLoss', letter_case='lower'),
+        postprocessor=dict(type='CTCPostProcessor'),
+        dictionary=dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_padding=True)))
+```
+
+<div id="weight_config"></div>
+
+#### Checkpoint Loading Configuration
+
+The model weights in the checkpoint file can be loaded via the `load_from` parameter, simply by setting the `load_from` parameter to the path of the checkpoint file.
+
+You can also resume training by setting `resume=True` to load the training status information in the checkpoint. When both `load_from` and `resume=True` are set, MMEngine will load the training state from the checkpoint file at the `load_from` path.
+
+If only `resume=True` is set, the executor will try to find and read the latest checkpoint file from the `work_dir` folder
+
+```Python
+load_from = None # Path to load checkpoint
+resume = False # whether resume
+```
+
+More can be found in {external+mmengine:doc}`MMEngine: Load Weights or Recover Training <tutorials/runner>` and [OCR Advanced Tips - Resume Training from Checkpoints](train_test.md#resume-training-from-a-checkpoint).
+
+<div id="eval_config"></id>
+
+### Evaluation Configuration
+
+In model validation and model testing, quantitative measurement of model accuracy is often required. MMOCR performs this function by means of `Metric` and `Evaluator`. For more information, please refer to {external+mmengine:doc}`MMEngine: Evaluation <tutorials/evaluation>` and [Evaluation](../basic_concepts/evaluation.md)
+
+#### Evaluator
+
+Evaluator is mainly used to manage multiple datasets and multiple `Metrics`. For single and multiple dataset cases, there are single and multiple dataset evaluators, both of which can manage multiple `Metrics`.
+
+The single-dataset evaluator is configured as follows.
+
+```Python
+# Single Dataset Single Metric
+val_evaluator = dict(
+    type='Evaluator',
+    metrics=dict())
+
+# Single Dataset Multiple Metric
+val_evaluator = dict(
+    type='Evaluator',
+    metrics=[...])
+```
+
+`MultiDatasetsEvaluator` differs from single-dataset evaluation in two aspects: `type` and `dataset_prefixes`. The evaluator type must be `MultiDatasetsEvaluator` and cannot be omitted. The `dataset_prefixes` is mainly used to distinguish the results of different datasets with the same evaluation metrics, see [MultiDatasetsEvaluation](../basic_concepts/evaluation.md).
+
+Assuming that we need to test accuracy on IC13 and IC15 datasets, the configuration is as follows.
+
+```Python
+#  Multiple datasets, single Metric
+val_evaluator = dict(
+    type='MultiDatasetsEvaluator',
+    metrics=dict(),
+    dataset_prefixes=['IC13', 'IC15'])
+
+# Multiple datasets, multiple Metrics
+val_evaluator = dict(
+    type='MultiDatasetsEvaluator',
+    metrics=[...],
+    dataset_prefixes=['IC13', 'IC15'])
+```
+
+#### Metric
+
+A metric evaluates a model's performance from a specific perspective. While there is no such common metric that fits all the tasks, MMOCR provides enough flexibility such that multiple metrics serving the same task can be used simultaneously. Here we list task-specific metrics for reference.
+
+Text detection: [`HmeanIOUMetric`](mmocr.evaluation.metrics.HmeanIOUMetric)
+
+Text recognition: [`WordMetric`](mmocr.evaluation.metrics.WordMetric), [`CharMetric`](mmocr.evaluation.metrics.CharMetric), [`OneMinusNEDMetric`](mmocr.evaluation.metrics.OneMinusNEDMetric)
+
+Key information extraction: [`F1Metric`](mmocr.evaluation.metrics.F1Metric)
+
+Text detection as an example, using a single `Metric` in the case of single dataset evaluation.
+
+```Python
+val_evaluator = dict(type='HmeanIOUMetric')
+```
+
+Take text recognition as an example, multiple datasets (`IC13` and `IC15`) are evaluated using multiple `Metric`s (`WordMetric` and `CharMetric`).
+
+```Python
+val_evaluator = dict(
+    type='MultiDatasetsEvaluator',
+    metrics=[
+        dict(
+            type='WordMetric',
+            mode=['exact', 'ignore_case', 'ignore_case_symbol']),
+        dict(type='CharMetric')
+    ],
+    dataset_prefixes=['IC13', 'IC15'])
+test_evaluator = val_evaluator
+```
+
+<div id="vis_config"></div>
+
+### Visualization Configuration
+
+Each task is bound to a task-specific visualizer. The visualizer is mainly used for visualizing or storing intermediate results of user models and visualizing val and test prediction results. The visualization results can also be stored in different backends such as WandB, TensorBoard, etc. through the corresponding visualization backend. Commonly used modification operations can be found in [visualization](visualization.md).
+
+The default configuration of visualization for text detection is as follows.
+
+```Python
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextDetLocalVisualizer',  # Different visualizers for different tasks
+    vis_backends=vis_backends,
+    name='visualizer')
+```
+
+## Directory Structure
+
+All configuration files of `MMOCR` are placed under the `configs` folder. To avoid config files from being too long and improve their reusability and clarity, MMOCR takes advantage of the inheritance mechanism and split config files into eight sections. Since each section is closely related to the task type, MMOCR provides a task folder for each task in `configs/`, namely `textdet` (text detection task), `textrecog` (text recognition task), and `kie` (key information extraction). Each folder is further divided into two parts: `_base_` folder and algorithm configuration folders.
+
+1. the `_base_` folder stores some general config files unrelated to specific algorithms, and each section is divided into datasets, training strategies and runtime configurations by directory.
+
+2. The algorithm configuration folder stores config files that are strongly related to the algorithm. The algorithm configuration folder has two kinds of config files.
+
+   1. Config files starting with `_base_`: Configures the model and data pipeline of an algorithm. In OCR domain, data augmentation strategies are generally strongly related to the algorithm, so the model and data pipeline are usually placed in the same config file.
+
+   2. Other config files, i.e. the algorithm-specific configurations on the specific dataset(s): These are the full config files that further configure training and testing settings, aggregating `_base_` configurations that are scattered in different locations. Inside some modifications to the fields in `_base_` configs may be performed, such as data pipeline, training strategy, etc.
+
+All these config files are distributed in different folders according to their contents as follows:
+
+<style type="text/css">
+.tg  {border-collapse:collapse;border-spacing:0;}
+.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
+  overflow:hidden;padding:10px 5px;word-break:normal;}
+.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
+  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}
+.tg .tg-lboi{border-color:inherit;text-align:left;vertical-align:middle}
+.tg .tg-9wq8{border-color:inherit;text-align:center;vertical-align:middle}
+.tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top}
+</style>
+
+<table class="tg">
+<thead>
+  <tr>
+    <td class="tg-9wq8" rowspan="5">textdet<br></td>
+    <td class="tg-lboi" rowspan="3">_base_</td>
+    <td class="tg-9wq8">datasets</td>
+    <td class="tg-0pky">icdar_datasets.py<br>ctw1500.py<br>...</td>
+    <td class="tg-0pky"><a href="#dataset_config">Dataset configuration</a></td>
+  </tr>
+  <tr>
+    <td class="tg-9wq8">schedules</td>
+    <td class="tg-0pky">schedule_adam_600e.py<br>...</td>
+    <td class="tg-0pky"><a href="#schedule_config">Training Strategy Configuration</a></td>
+  </tr>
+  <tr>
+    <td class="tg-9wq8">default_runtime.py<br></td>
+    <td class="tg-0pky">-</td>
+    <td class="tg-0pky"><a href="#env_config">Environment Configuration</a><br><a href="#hook_config">Hook Configuration</a><br><a href="#log_config">Log Configuration</a> <br><a href="#weight_config">Checkpoint Loading Configuration</a> <br><a href="#eval_config">Evaluation Configuration</a> <br><a href="#vis_config">Visualization Configuration</a></td>
+  </tr>
+  <tr>
+    <td class="tg-lboi" rowspan="2">dbnet</td>
+    <td class="tg-9wq8">_base_dbnet_resnet18_fpnc.py</td>
+    <td class="tg-0pky"><span style="font-weight:400;font-style:normal">-</span></td>
+    <td class="tg-0pky"><a href="#model_config">Network Configuration</a> <br><a href="#pipeline_config">Data Pipeline Configuration</a></td>
+  </tr>
+  <tr>
+    <td class="tg-9wq8">dbnet_resnet18_fpnc_1200e_icdar2015.py</td>
+    <td class="tg-0pky"><span style="font-weight:400;font-style:normal">-</span></td>
+    <td class="tg-0pky"><a href="#dataloader_config">Dataloader Configuration</a> <br><a href="#pipeline_config">Data Pipeline Configuration(Optional)</a></td>
+  </tr>
+</thead>
+</table>
+
+The final directory structure is as follows.
+
+```Python
+configs
+├── textdet
+│   ├── _base_
+│   │   ├── datasets
+│   │   │   ├── icdar2015.py
+│   │   │   ├── icdar2017.py
+│   │   │   └── totaltext.py
+│   │   ├── schedules
+│   │   │   └── schedule_adam_600e.py
+│   │   └── default_runtime.py
+│   └── dbnet
+│       ├── _base_dbnet_resnet18_fpnc.py
+│       └── dbnet_resnet18_fpnc_1200e_icdar2015.py
+├── textrecog
+│   ├── _base_
+│   │   ├── datasets
+│   │   │   ├── icdar2015.py
+│   │   │   ├── icdar2017.py
+│   │   │   └── totaltext.py
+│   │   ├── schedules
+│   │   │   └── schedule_adam_base.py
+│   │   └── default_runtime.py
+│   └── crnn
+│       ├── _base_crnn_mini-vgg.py
+│       └── crnn_mini-vgg_5e_mj.py
+└── kie
+    ├── _base_
+    │   ├──datasets
+    │   └── default_runtime.py
+    └── sgdmr
+        └── sdmgr_novisual_60e_wildreceipt_openset.py
+```
+
+## Naming Conventions
+
+MMOCR has a convention to name config files, and contributors to the code base need to follow the same naming rules. The file names are divided into four sections: algorithm information, module information, training information, and data information. Words that logically belong to different sections are connected by an underscore `'_'`, and multiple words in the same section are connected by a hyphen `'-'`.
+
+```Python
+{{algorithm info}}_{{module info}}_{{training info}}_{{data info}}.py
+```
+
+- algorithm info: the name of the algorithm, such as dbnet, crnn, etc.
+
+- module info: list some intermediate modules in the order of data flow. Its content depends on the algorithm, and some modules strongly related to the model will be omitted to avoid an overly long name. For example:
+
+  - For the text detection task and the key information extraction task :
+
+    ```Python
+    {{algorithm info}}_{{backbone}}_{{neck}}_{{head}}_{{training info}}_{{data info}}.py
+    ```
+
+    `{head}` is usually omitted since it's algorithm-specific.
+
+  - For text recognition tasks.
+
+    ```Python
+    {{algorithm info}}_{{backbone}}_{{encoder}}_{{decoder}}_{{training info}}_{{data info}}.py
+    ```
+
+    Since encoder and decoder are generally bound to the algorithm, they are usually omitted.
+
+- training info: some settings of the training strategy, including batch size, schedule, etc.
+
+- data info: dataset name, modality, input size, etc., such as icdar2015 and synthtext.
diff --git a/mmocr-dev-1.x/docs/en/user_guides/data_prepare/dataset_preparer.md b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/dataset_preparer.md
new file mode 100644
index 0000000000000000000000000000000000000000..55174cc5894e54db0daf9706ef406fce6f8d14c6
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/dataset_preparer.md
@@ -0,0 +1,776 @@
+# Dataset Preparer (Beta)
+
+```{note}
+Dataset Preparer is still in beta version and might not be stable enough. You are welcome to try it out and report any issues to us.
+```
+
+## One-click data preparation script
+
+MMOCR provides a unified one-stop data preparation script `prepare_dataset.py`.
+
+Only one line of command is needed to complete the data download, decompression, format conversion, and basic configure generation.
+
+```bash
+python tools/dataset_converters/prepare_dataset.py [-h] [--nproc NPROC] [--task {textdet,textrecog,textspotting,kie}] [--splits SPLITS [SPLITS ...]] [--lmdb] [--overwrite-cfg] [--dataset-zoo-path DATASET_ZOO_PATH] datasets [datasets ...]
+```
+
+| ARGS               | Type | Description                                                                                                                               |
+| ------------------ | ---- | ----------------------------------------------------------------------------------------------------------------------------------------- |
+| dataset_name       | str  | (required) dataset name.                                                                                                                  |
+| --nproc            | int  | Number of processes to be used. Defaults to 4.                                                                                            |
+| --task             | str  | Convert the dataset to the format of a specified task supported by MMOCR. options are: 'textdet', 'textrecog', 'textspotting', and 'kie'. |
+| --splits           | str  | Splits of the dataset to be prepared. Multiple splits can be accepted. Defaults to `train val test`.                                      |
+| --lmdb             | str  | Store the data in LMDB format. Only valid when the task is `textrecog`.                                                                   |
+| --overwrite-cfg    | str  | Whether to overwrite the dataset config file if it already exists in `configs/{task}/_base_/datasets`.                                    |
+| --dataset-zoo-path | str  | Path to the dataset config file. If not specified, the default path is `./dataset_zoo`.                                                   |
+
+For example, the following command shows how to use the script to prepare the ICDAR2015 dataset for text detection task.
+
+```bash
+python tools/dataset_converters/prepare_dataset.py icdar2015 --task textdet --overwrite-cfg
+```
+
+Also, the script supports preparing multiple datasets at the same time. For example, the following command shows how to prepare the ICDAR2015 and TotalText datasets for text recognition task.
+
+```bash
+python tools/dataset_converters/prepare_dataset.py icdar2015 totaltext --task textrecog --overwrite-cfg
+```
+
+To check the supported datasets of Dataset Preparer, please refer to [Dataset Zoo](./datasetzoo.md). Some of other datasets that need to be prepared manually are listed in [Text Detection](./det.md) and [Text Recognition](./recog.md).
+
+For users in China, more datasets can be downloaded from the opensource dataset platform: [OpenDataLab](https://opendatalab.com/). After downloading the data, you can place the files listed in `data_obtainer.save_name` in `data/cache` and rerun the script.
+
+## Advanced Usage
+
+### LMDB Format
+
+In text recognition tasks, we usually use LMDB format to store data to speed up data loading. When using the `prepare_dataset.py` script to prepare data, you can store data to the LMDB format by the `--lmdb` parameter. For example:
+
+```bash
+python tools/dataset_converters/prepare_dataset.py icdar2015 --task textrecog --lmdb
+```
+
+As soon as the dataset is prepared, Dataset Preparer will generate `icdar2015_lmdb.py` in the `configs/textrecog/_base_/datasets/` directory. You can inherit this file and point the `dataloader` to the LMDB dataset. Moreover, the LMDB dataset needs to be loaded by [`LoadImageFromNDArray`](mmocr.datasets.transforms.LoadImageFromNDArray), thus you also need to modify `pipeline`.
+
+For example, if we want to change the training set of `configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py` to icdar2015 generated before, we need to perform the following modifications:
+
+1. Modify `configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py`:
+
+   ```python
+   _base_ = [
+        '../_base_/datasets/icdar2015_lmdb.py',  # point to icdar2015 lmdb dataset
+         ...
+    ]
+
+    train_list = [_base_.icdar2015_lmdb_textrecog_train]
+    ...
+   ```
+
+2. Modify `train_pipeline` in `configs/textrecog/crnn/_base_crnn_mini-vgg.py`, change `LoadImageFromFile` to `LoadImageFromNDArray`:
+
+   ```python
+   train_pipeline = [
+    dict(
+        type='LoadImageFromNDArray',
+        color_type='grayscale',
+        file_client_args=file_client_args,
+        ignore_empty=True,
+        min_size=2),
+    ...
+   ]
+   ```
+
+## Design
+
+There are many OCR datasets with different languages, annotation formats, and scenarios. There are generally two ways to use these datasets: to quickly understand the relevant information about the dataset, or to use it to train models. To meet these two usage scenarios, MMOCR provides dataset automatic preparation scripts. The dataset automatic preparation script uses modular design, which greatly enhances scalability, and allows users to easily configure other public or private datasets. The configuration files for the dataset automatic preparation script are uniformly stored in the `dataset_zoo/` directory. Users can find all the configuration files for the dataset preparation scripts officially supported by MMOCR in this directory. The directory structure of this folder is as follows:
+
+```text
+dataset_zoo/
+├── icdar2015
+│   ├── metafile.yml
+│   ├── sample_anno.md
+│   ├── textdet.py
+│   ├── textrecog.py
+│   └── textspotting.py
+└── wildreceipt
+    ├── metafile.yml
+    ├── sample_anno.md
+    ├── kie.py
+    ├── textdet.py
+    ├── textrecog.py
+    └── textspotting.py
+```
+
+### Dataset-related Information
+
+The relevant information of a dataset includes the annotation format, annotation examples, and basic statistical information of the dataset. Although this information can be found on the official website of each dataset, it is scattered across various websites, and users need to spend a lot of time to discover the basic information of the dataset. Therefore, MMOCR has designed some paradigms to help users quickly understand the basic information of the dataset. MMOCR divides the relevant information of the dataset into two parts. One part is the basic information of the dataset, including the year of publication, the authors of the paper, and copyright information, etc. The other part is the annotation information of the dataset, including the annotation format and annotation examples. MMOCR provides a paradigm for each part, and contributors can fill in the basic information of the dataset according to the paradigm. This way, users can quickly understand the basic information of the dataset. Based on the basic information of the dataset, MMOCR provides a `metafile.yml` file, which contains the basic information of the corresponding dataset, including the year of publication, the authors of the paper, and copyright information, etc. In this way, users can quickly understand the basic information of the dataset. This file is not mandatory during the dataset preparation process (so users can ignore it when adding their own private datasets), but to better understand the information of various public datasets, MMOCR recommends that users read the corresponding metafile information before using the dataset preparation script to understand whether the characteristics of the dataset meet the user's needs. MMOCR uses ICDAR2015 as an example, and its sample content is shown below:
+
+```yaml
+Name: 'Incidental Scene Text IC15'
+Paper:
+  Title: ICDAR 2015 Competition on Robust Reading
+  URL: https://rrc.cvc.uab.es/files/short_rrc_2015.pdf
+  Venue: ICDAR
+  Year: '2015'
+  BibTeX: '@inproceedings{karatzas2015icdar,
+  title={ICDAR 2015 competition on robust reading},
+  author={Karatzas, Dimosthenis and Gomez-Bigorda, Lluis and Nicolaou, Anguelos and Ghosh, Suman and Bagdanov, Andrew and Iwamura, Masakazu and Matas, Jiri and Neumann, Lukas and Chandrasekhar, Vijay Ramaseshan and Lu, Shijian and others},
+  booktitle={2015 13th international conference on document analysis and recognition (ICDAR)},
+  pages={1156--1160},
+  year={2015},
+  organization={IEEE}}'
+Data:
+  Website: https://rrc.cvc.uab.es/?ch=4
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: CC BY 4.0
+    Link: https://creativecommons.org/licenses/by/4.0/
+```
+
+Specifically, MMOCR lists the meaning of each field in the following table:
+
+| Field Name       | Meaning                                                                                                  |
+| :--------------- | :------------------------------------------------------------------------------------------------------- |
+| Name             | The name of the dataset                                                                                  |
+| Paper.Title      | The title of the paper for the dataset                                                                   |
+| Paper.URL        | The URL of the paper for the dataset                                                                     |
+| Paper.Venue      | The venue of the paper for the dataset                                                                   |
+| Paper.Year       | The year of publication for the paper                                                                    |
+| Paper.BibTeX     | The BibTeX citation of the paper for the dataset                                                         |
+| Data.Website     | The official website of the dataset                                                                      |
+| Data.Language    | The supported languages of the dataset                                                                   |
+| Data.Scene       | The supported scenes of the dataset, such as `Natural Scene`, `Document`, `Handwritten`, etc.            |
+| Data.Granularity | The supported granularities of the dataset, such as `Character`, `Word`, `Line`, etc.                    |
+| Data.Tasks       | The supported tasks of the dataset, such as `textdet`, `textrecog`, `textspotting`, `kie`, etc.          |
+| Data.License     | License information for the dataset. Use `N/A` if no license exists.                                     |
+| Data.Format      | File format of the annotation files, such as `.txt`, `.xml`, `.json`, etc.                               |
+| Data.Keywords    | Keywords describing the characteristics of the dataset, such as `Horizontal`, `Vertical`, `Curved`, etc. |
+
+For the annotation information of the dataset, MMOCR provides a `sample_anno.md` file, which users can use as a template to fill in the annotation information of the dataset, so that users can quickly understand the annotation information of the dataset. MMOCR uses ICDAR2015 as an example, and the sample content is as follows:
+
+````markdown
+    **Text Detection**
+
+    ```text
+    # x1,y1,x2,y2,x3,y3,x4,y4,trans
+
+    377,117,463,117,465,130,378,130,Genaxis Theatre
+    493,115,519,115,519,131,493,131,[06]
+    374,155,409,155,409,170,374,170,###
+````
+
+`sample_anno.md` provides annotation information for different tasks of the dataset, including the format of the annotation files (text corresponds to `txt` files, and the format of the annotation files can also be found in `meta.yml`), and examples of the annotations.
+
+With the information in these two files, users can quickly understand the basic information of the dataset. Additionally, MMOCR has summarized the basic information of all datasets, and users can view the basic information of all datasets in the [Overview](.overview.md).
+
+### Dataset Usage
+
+After decades of development, the OCR field has seen a series of related datasets emerge, often providing text annotation files in various styles, making it necessary for users to perform format conversion when using these datasets. Therefore, to facilitate dataset preparation for users, we have designed the Dataset Preparer to help users quickly prepare datasets in the format supported by MMOCR. For details, please refer to the [Dataset Format](../../basic_concepts/datasets.md) document. The following figure shows a typical workflow for running the Dataset Preparer.
+
+![workflow](https://user-images.githubusercontent.com/87774050/233025618-aa3c3ad6-c595-49a3-b080-a6284748c0c1.jpg)
+
+The figure shows that when running the Dataset Preparer, the following operations will be performed in sequence:
+
+1. For the training set, validation set, and test set, the preparers will perform:
+   1. [Dataset download, extraction, and movement (Obtainer)](#Dataset-download-extraction-and-movement-obtainer)
+   2. [Matching annotations with images (Gatherer)](#dataset-collection-gatherer)
+   3. [Parsing original annotations (Parser)](#dataset-parsing-parser)
+   4. [Packing annotations into a unified format (Packer)](#dataset-conversion-packer)
+   5. [Saving annotations (Dumper)](#annotation-saving-dumper)
+2. Delete files (Delete)
+3. Generate the configuration file for the data set (Config Generator).
+
+To handle various types of datasets, MMOCR has designed each component as a plug-and-play module, and allows users to configure the dataset preparation process through configuration files located in `dataset_zoo/`. These configuration files are in Python format and can be used in the same way as other configuration files in MMOCR, as described in the [Configuration File documentation](../config.md).
+
+In `dataset_zoo/`, each dataset has its own folder, and the configuration files are named after the task to distinguish different configurations under different tasks. Taking the text detection part of ICDAR2015 as an example, the sample configuration file `dataset_zoo/icdar2015/textdet.py` is shown below:
+
+```python
+data_root = 'data/icdar2015'
+cache_path = 'data/cache'
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_training_images.zip',
+                save_name='ic15_textdet_train_img.zip',
+                md5='c51cbace155dcc4d98c8dd19d378f30d',
+                content=['image'],
+                mapping=[['ic15_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'ch4_training_localization_transcription_gt.zip',
+                save_name='ic15_textdet_train_gt.zip',
+                md5='3bfaf1988960909014f7987d2343060b',
+                content=['annotation'],
+                mapping=[['ic15_textdet_train_gt', 'annotations/train']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+    parser=dict(type='ICDARTxtTextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_test_images.zip',
+                save_name='ic15_textdet_test_img.zip',
+                md5='97e4c1ddcf074ffcc75feff2b63c35dd',
+                content=['image'],
+                mapping=[['ic15_textdet_test_img', 'textdet_imgs/test']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge4_Test_Task4_GT.zip',
+                save_name='ic15_textdet_test_gt.zip',
+                md5='8bce173b06d164b98c357b0eb96ef430',
+                content=['annotation'],
+                mapping=[['ic15_textdet_test_gt', 'annotations/test']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+    parser=dict(type='ICDARTxtTextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+delete = ['annotations', 'ic15_textdet_test_img', 'ic15_textdet_train_img']
+config_generator = dict(type='TextDetConfigGenerator')
+```
+
+#### Dataset download extraction and movement (Obtainer)
+
+The `obtainer` module in Dataset Preparer is responsible for downloading, extracting, and moving the dataset. Currently, MMOCR only provides the `NaiveDataObtainer`. Generally speaking, the built-in `NaiveDataObtainer` is sufficient for downloading most datasets that can be accessed through direct links, and supports operations such as extraction, moving files, and renaming. However, MMOCR currently does not support automatically downloading datasets stored in resources that require login, such as Baidu or Google Drive. Here is a brief introduction to the `NaiveDataObtainer`.
+
+| Field Name | Meaning                                                                                      |
+| ---------- | -------------------------------------------------------------------------------------------- |
+| cache_path | Dataset cache path, used to store the compressed files downloaded during dataset preparation |
+| data_root  | Root directory where the dataset is stored                                                   |
+| files      | Dataset file list, used to describe the download information of the dataset                  |
+
+The `files` field is a list, and each element in the list is a dictionary used to describe the download information of a dataset file. The table below shows the meaning of each field:
+
+| Field Name         | Meaning                                                                                                                                    |
+| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------ |
+| url                | Download link for the dataset file                                                                                                         |
+| save_name          | Name used to save the dataset file                                                                                                         |
+| md5 (optional)     | MD5 hash of the dataset file, used to check if the downloaded file is complete                                                             |
+| split (optional)   | Dataset split the file belongs to, such as `train`, `test`, etc., this field can be omitted                                                |
+| content (optional) | Content of the dataset file, such as `image`, `annotation`, etc., this field can be omitted                                                |
+| mapping (optional) | Decompression mapping of the dataset file, used to specify the storage location of the file after decompression, this field can be omitted |
+
+The Dataset Preparer follows the following conventions:
+
+- Images of different types of datasets are moved to the corresponding category `{taskname}_imgs/{split}/` folder, such as `textdet_imgs/train/`.
+- For a annotation file containing annotation information for all images, the annotations are moved to `annotations/{split}.*` file, such as `annotations/train.json`.
+- For a annotation file containing annotation information for one image, all annotation files are moved to `annotations/{split}/` folder, such as `annotations/train/`.
+- For some other special cases, such as all training, testing, and validation images are in one folder, the images can be moved to a self-set folder, such as `{taskname}_imgs/imgs/`, and the image storage location should be specified in the subsequent `gatherer` module.
+
+An example configuration is as follows:
+
+```python
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_training_images.zip',
+                save_name='ic15_textdet_train_img.zip',
+                md5='c51cbace155dcc4d98c8dd19d378f30d',
+                content=['image'],
+                mapping=[['ic15_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'ch4_training_localization_transcription_gt.zip',
+                save_name='ic15_textdet_train_gt.zip',
+                md5='3bfaf1988960909014f7987d2343060b',
+                content=['annotation'],
+                mapping=[['ic15_textdet_train_gt', 'annotations/train']]),
+        ]),
+```
+
+#### Dataset collection (Gatherer)
+
+The `gatherer` module traverses the files in the dataset directory, matches image files with their corresponding annotation files, and organizes a file list for the `parser` module to read. Therefore, it is necessary to know the matching rules between image files and annotation files in the current dataset. There are two commonly used annotation storage formats for OCR datasets: one is multiple annotation files corresponding to multiple images, and the other is a single annotation file corresponding to multiple images, for example:
+
+```text
+Many-to-Many
+├── {taskname}_imgs/{split}/img_img_1.jpg
+├── annotations/{split}/gt_img_1.txt
+├── {taskname}_imgs/{split}/img_2.jpg
+├── annotations/{split}/gt_img_2.txt
+├── {taskname}_imgs/{split}/img_3.JPG
+├── annotations/{split}/gt_img_3.txt
+
+One-to-Many
+├── {taskname}/{split}/img_1.jpg
+├── {taskname}/{split}/img_2.jpg
+├── {taskname}/{split}/img_3.JPG
+├── annotations/gt.txt
+```
+
+Specific design is as follows:
+
+![Gatherer](https://user-images.githubusercontent.com/24622904/224935300-9f27e471-e87d-42db-a11d-adc8f603a7c9.png)
+
+MMOCR has built-in `PairGatherer` and `MonoGatherer` to handle the two common cases mentioned above. `PairGatherer` is used for many-to-many situations, while `MonoGatherer` is used for one-to-many situations.
+
+```{note}
+To simplify processing, the gatherer assumes that the dataset's images and annotations are stored separately in `{taskname}_imgs/{split}/` and `annotations/`, respectively. In particular, for many-to-many situations, the annotation file needs to be placed in `annotations/{split}`.
+```
+
+- In the many-to-many case, `PairGatherer` needs to find the image files and corresponding annotation files according to a certain naming convention. First, the suffix of the image needs to be specified by the `img_suffixes` parameter, as in the example above `img_suffixes=[.jpg,.JPG]`. In addition, a pair of [regular expressions](https://docs.python.org/3/library/re.html) `rule` is used to specify the correspondence between the image and annotation files. For example, `rule=[r'img_(\d+)\.([jJ][pP][gG])'，r'gt_img_\1.txt']`. The first regular expression is used to match the image file name, `\d+` is used to match the image sequence number, and `([jJ][pP][gG])` is used to match the image suffix. The second regular expression is used to match the annotation file name, where `\1` associates the matched image sequence number with the annotation file sequence number. An example configuration is:
+
+```python
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+```
+
+For the case of one-to-many, it is usually simple, and the user only needs to specify the annotation file name. For example, for the training set configuration:
+
+```python
+    gatherer=dict(type='MonoGatherer', ann_name='train.txt'),
+```
+
+MMOCR has also made conventions on the return value of `Gatherer`. `Gatherer` returns a tuple with two elements. The first element is a list of image paths (including all image paths) or the folder containing all images. The second element is a list of annotation file paths (including all annotation file paths) or the path of the annotation file (the annotation file contains all image annotation information). Specifically, the return value of `PairGatherer` is (list of image paths, list of annotation file paths), as shown below:
+
+```python
+    (['{taskname}_imgs/{split}/img_1.jpg', '{taskname}_imgs/{split}/img_2.jpg', '{taskname}_imgs/{split}/img_3.JPG'],
+    ['annotations/{split}/gt_img_1.txt', 'annotations/{split}/gt_img_2.txt', 'annotations/{split}/gt_img_3.txt'])
+```
+
+`MonoGatherer` returns a tuple containing the path to the image directory and the path to the annotation file, as follows:
+
+```python
+    ('{taskname}/{split}', 'annotations/gt.txt')
+```
+
+#### Dataset parsing (Parser)
+
+`Parser` is mainly used to parse the original annotation files. Since the original annotation formats vary greatly, MMOCR provides `BaseParser` as a base class, which users can inherit to implement their own `Parser`. In `BaseParser`, MMOCR has designed two interfaces: `parse_files` and `parse_file`, where the annotation parsing is conventionally carried out. For the two different input situations of `Gatherer` (many-to-many, one-to-many), the implementations of these two interfaces should be different.
+
+- `BaseParser` by default handles the many-to-many situation. Among them, `parse_files` distributes the data in parallel to multiple `parse_file` processes, and each `parse_file` parses the annotation of a single image separately.
+- For the one-to-many situation, the user needs to override `parse_files` to implement loading the annotation and returning standardized results.
+
+The interface of `BaseParser` is defined as follows:
+
+```python
+class BaseParser:
+    def __call__(self, img_paths, ann_paths):
+    	return self.parse_files(img_paths, ann_paths)
+
+    def parse_files(self, img_paths: Union[List[str], str],
+                    ann_paths: Union[List[str], str]) -> List[Tuple]:
+        samples = track_parallel_progress_multi_args(
+            self.parse_file, (img_paths, ann_paths), nproc=self.nproc)
+        return samples
+
+    @abstractmethod
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+
+        raise NotImplementedError
+```
+
+In order to ensure the uniformity of subsequent modules, MMOCR has made conventions for the return values of `parse_files` and `parse_file`. The return value of `parse_file` is a tuple, the first element of which is the image path, and the second element is the annotation information. The annotation information is a list, each element of which is a dictionary with the fields `poly`, `text`, and `ignore`, as shown below:
+
+```python
+# An example of returned values:
+(
+    'imgs/train/xxx.jpg',
+    [
+        dict(
+            poly=[0, 1, 1, 1, 1, 0, 0, 0],
+            text='hello',
+            ignore=False),
+        ...
+    ]
+)
+```
+
+The output of `parse_files` is a list, and each element in the list is the return value of `parse_file`. An example is:
+
+```python
+[
+    (
+        'imgs/train/xxx.jpg',
+        [
+            dict(
+                poly=[0, 1, 1, 1, 1, 0, 0, 0],
+                text='hello',
+                ignore=False),
+            ...
+        ]
+    ),
+    ...
+]
+```
+
+#### Dataset Conversion (Packer)
+
+`Packer` is mainly used to convert data into a unified annotation format, because the input data is the output of parsers and the format has been fixed. Therefore, the packer only needs to convert the input format into a unified annotation format for each task. Currently, MMOCR supports tasks such as text detection, text recognition, end-to-end OCR, and key information extraction, and MMOCR has a corresponding packer for each task, as shown below:
+
+![Packer](https://user-images.githubusercontent.com/24622904/225248832-11be894f-7b44-4ffa-83e1-8478c37b5e63.png)
+
+For text detection, end-to-end OCR, and key information extraction, MMOCR has a unique corresponding `Packer`. However, for text recognition, MMOCR provides two `Packer` options: `TextRecogPacker` and `TextRecogCropPacker`, due to the existence of two types of datasets:
+
+- Each image is a recognition sample, and the annotation information returned by the `parser` is only a `dict(text='xxx')`. In this case, `TextRecogPacker` can be used.
+- The dataset does not crop text from the image, and it essentially contains end-to-end OCR annotations that include the position information of the text and the corresponding text information. `TextRecogCropPacker` will crop the text from the image and then convert it into the unified format for text recognition.
+
+#### Annotation Saving (Dumper)
+
+The `dumper` module is used to determine what format the data should be saved in. Currently, MMOCR supports `JsonDumper`, `WildreceiptOpensetDumper`, and `TextRecogLMDBDumper`. They are used to save data in the standard MMOCR JSON format, the Wildreceipt format, and the LMDB format commonly used in the academic community for text recognition, respectively.
+
+#### Delete files (Delete)
+
+When processing a dataset, temporary files that are not needed may be generated. Here, a list of such files or folders can be passed in, which will be deleted when the conversion is finished.
+
+#### Generate the configuration file for the dataset (ConfigGenerator)
+
+In order to automatically generate basic configuration files after preparing the dataset, MMOCR has implemented `TextDetConfigGenerator`, `TextRecogConfigGenerator`, and `TextSpottingConfigGenerator` for each task. The main parameters supported by these generators are as follows:
+
+| Field Name  | Meaning                                                                                                                                                                                       |
+| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| data_root   | Root directory where the dataset is stored.                                                                                                                                                   |
+| train_anns  | Path to the training set annotations in the configuration file. If not specified, it defaults to `[dict(ann_file='{taskname}_train.json', dataset_postfix='']`.                               |
+| val_anns    | Path to the validation set annotations in the configuration file. If not specified, it defaults to an empty string.                                                                           |
+| test_anns   | Path to the test set annotations in the configuration file. If not specified, it defaults to `[dict(ann_file='{taskname}_test.json', dataset_postfix='']`.                                    |
+| config_path | Path to the directory where the configuration files for the algorithm are stored. The configuration generator will write the default configuration to `{config_path}/{taskname}/_base_/datasets/{dataset_name}.py`. If not specified, it defaults to `configs/`. |
+
+After preparing all the files for the dataset, the configuration generator will automatically generate the basic configuration files required to call the dataset. Below is a minimal example of a `TextDetConfigGenerator` configuration:
+
+```python
+config_generator = dict(type='TextDetConfigGenerator')
+```
+
+The generated file will be placed by default under `configs/{task}/_base_/datasets/`. In this example, the basic configuration file for the ICDAR 2015 dataset will be generated at `configs/textdet/_base_/datasets/icdar2015.py`.
+
+```python
+icdar2015_textdet_data_root = 'data/icdar2015'
+
+icdar2015_textdet_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+icdar2015_textdet_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_test.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+If the dataset is special and there are several variants of the annotations, the configuration generator also supports generating variables pointing to each variant in the base configuration. However, this requires users to differentiate them by using different `dataset_postfix` when setting up. For example, the ICDAR 2015 text recognition dataset has two annotation versions for the test set, the original version and the 1811 version, which can be specified in `test_anns` as follows:
+
+```python
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    test_anns=[
+        dict(ann_file='textrecog_test.json'),
+        dict(dataset_postfix='857', ann_file='textrecog_test_857.json')
+    ])
+```
+
+The configuration generator will generate the following configurations:
+
+```python
+icdar2015_textrecog_data_root = 'data/icdar2015'
+
+icdar2015_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+icdar2015_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_test.json',
+    test_mode=True,
+    pipeline=None)
+
+icdar2015_1811_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_test_1811.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+With this file, MMOCR can directly import this dataset into the `dataloader` from the model configuration file (the following sample is excerpted from [`configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py`](/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py)):
+
+```python
+_base_ = [
+    '../_base_/datasets/icdar2015.py',
+    # ...
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+# ...
+
+train_dataloader = dict(
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    dataset=icdar2015_textdet_test)
+
+test_dataloader = val_dataloader
+```
+
+```{note}
+By default, the configuration generator does not overwrite existing base configuration files unless the user manually specifies `overwrite-cfg` when running the script.
+```
+
+## Adding a new dataset to Dataset Preparer
+
+### Adding Public Datasets
+
+MMOCR has already supported many [commonly used public datasets](./datasetzoo.md). If the dataset you want to use has not been supported yet and you are willing to [contribute to the MMOCR](../../notes/contribution_guide.md) open-source community, you can follow the steps below to add a new dataset.
+
+In the following example, we will show you how to add the **ICDAR2013** dataset step by step.
+
+#### Adding `metafile.yml`
+
+First, make sure that the dataset you want to add does not already exist in `dataset_zoo/`. Then, create a new folder named after the dataset you want to add, such as `icdar2013/` (usually, use lowercase alphanumeric characters without symbols to name the dataset). In the `icdar2013/` folder, create a `metafile.yml` file and fill in the basic information of the dataset according to the following template:
+
+```yaml
+Name: 'Incidental Scene Text IC13'
+Paper:
+  Title: ICDAR 2013 Robust Reading Competition
+  URL: https://www.imlab.jp/publication_data/1352/icdar_competition_report.pdf
+  Venue: ICDAR
+  Year: '2013'
+  BibTeX: '@inproceedings{karatzas2013icdar,
+  title={ICDAR 2013 robust reading competition},
+  author={Karatzas, Dimosthenis and Shafait, Faisal and Uchida, Seiichi and Iwamura, Masakazu and i Bigorda, Lluis Gomez and Mestre, Sergi Robles and Mas, Joan and Mota, David Fernandez and Almazan, Jon Almazan and De Las Heras, Lluis Pere},
+  booktitle={2013 12th international conference on document analysis and recognition},
+  pages={1484--1493},
+  year={2013},
+  organization={IEEE}}'
+Data:
+  Website: https://rrc.cvc.uab.es/?ch=2
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
+  Keywords:
+    - Horizontal
+```
+
+#### Add Annotation Examples
+
+Finally, you can add an annotation example file `sample_anno.md` under the `dataset_zoo/icdar2013/` directory to help the documentation script add annotation examples when generating documentation. The annotation example file is a Markdown file that typically contains the raw data format of a single sample. For example, the following code block shows a sample data file for the ICDAR2013 dataset:
+
+````markdown
+  **Text Detection**
+
+  ```text
+  # train split
+  # x1 y1 x2 y2 "transcript"
+
+  158 128 411 181 "Footpath"
+  443 128 501 169 "To"
+  64 200 363 243 "Colchester"
+
+  # test split
+  # x1, y1, x2, y2, "transcript"
+
+  38, 43, 920, 215, "Tiredness"
+  275, 264, 665, 450, "kills"
+  0, 699, 77, 830, "A"
+````
+
+#### Add configuration files for corresponding tasks
+
+In the `dataset_zoo/icdar2013` directory, add a `.py` configuration file named after the task. For example, `textdet.py`, `textrecog.py`, `textspotting.py`, `kie.py`, etc. The configuration template is shown below:
+
+```python
+data_root = ''
+data_cache = 'data/cache'
+train_prepare = dict(
+    obtainer=dict(
+        type='NaiveObtainer',
+        data_cache=data_cache,
+        files=[
+            dict(
+                url='xx',
+                md5='',
+                save_name='xxx',
+                mapping=list())
+              ]),
+    gatherer=dict(type='xxxGatherer', **kwargs),
+    parser=dict(type='xxxParser', **kwargs),
+    packer=dict(type='TextxxxPacker'), # Packer for the task
+    dumper=dict(type='JsonDumper'),
+)
+test_prepare = dict(
+    obtainer=dict(
+        type='NaiveObtainer',
+        data_cache=data_cache,
+        files=[
+            dict(
+                url='xx',
+                md5='',
+                save_name='xxx',
+                mapping=list())
+              ]),
+    gatherer=dict(type='xxxGatherer', **kwargs),
+    parser=dict(type='xxxParser', **kwargs),
+    packer=dict(type='TextxxxPacker'), # Packer for the task
+    dumper=dict(type='JsonDumper'),
+)
+```
+
+Taking the file detection task as an example, let's introduce the specific content of the configuration file. In general, users do not need to implement new `obtainer`, `gatherer`, `packer`, or `dumper`, but usually need to implement a new `parser` according to the annotation format of the dataset.
+
+Regarding the configuration of `obtainer`, we will not go into detail here, and you can refer to [Data set download, extraction, and movement (Obtainer)](#Dataset-download-extraction-and-movement-obtainer).
+
+For the `gatherer`, by observing the obtained ICDAR2013 dataset files, we found that each image has a corresponding `.txt` format annotation file:
+
+```text
+data_root
+├── textdet_imgs/train/
+│   ├── img_1.jpg
+│   ├── img_2.jpg
+│   └── ...
+├── annotations/train/
+│   ├── gt_img_1.txt
+│   ├── gt_img_2.txt
+│   └── ...
+```
+
+Moreover, the name of each annotation file corresponds to the image: `gt_img_1.txt` corresponds to `img_1.jpg`, and so on. Therefore, `PairGatherer` can be used to match them.
+
+```python
+gatherer=dict(
+      type='PairGatherer',
+      img_suffixes=['.jpg'],
+      rule=[r'(\w+)\.jpg', r'gt_\1.txt'])
+```
+
+The first regular expression in the rule is used to match the image file name, and the second regular expression is used to match the annotation file name. Here, `(\w+)` is used to match the image file name, and `gt_\1.txt` is used to match the annotation file name, where `\1` represents the content matched by the first regular expression. That is, it replaces `img_xx.jpg` with `gt_img_xx.txt`.
+
+Next, you need to implement a `parser` to parse the original annotation files into a standard format. Usually, before adding a new dataset, users can browse the [details page](./datasetzoo.md) of the supported datasets and check if there is a dataset with the same format. If there is, you can use the parser of that dataset directly. Otherwise, you need to implement a new format parser.
+
+Data format parsers are stored in the `mmocr/datasets/preparers/parsers` directory. All parsers need to inherit from `BaseParser` and implement the `parse_file` or `parse_files` method. For more information, please refer to [Parsing original annotations (Parser)](#dataset-parsing-parser).
+
+By observing the annotation files of the ICDAR2013 dataset:
+
+```text
+158 128 411 181 "Footpath"
+443 128 501 169 "To"
+64 200 363 243 "Colchester"
+542, 710, 938, 841, "break"
+87, 884, 457, 1021, "could"
+517, 919, 831, 1024, "save"
+```
+
+We found that the built-in `ICDARTxtTextDetAnnParser` already meets the requirements, so we can directly use this parser and configure it in the `preparer`.
+
+```python
+parser=dict(
+     type='ICDARTxtTextDetAnnParser',
+     remove_strs=[',', '"'],
+     encoding='utf-8',
+     format='x1 y1 x2 y2 trans',
+     separator=' ',
+     mode='xyxy')
+```
+
+In the configuration for the `ICDARTxtTextDetAnnParser`, `remove_strs=[',', '"']` is specified to remove extra quotes and commas in the annotation files. In the `format` section, `x1 y1 x2 y2 trans` indicates that each line in the annotation file contains four coordinates and a text content separated by spaces (`separator`=' '). Also, `mode` is set to `xyxy`, which means that the coordinates in the annotation file are the coordinates of the top-left and bottom-right corners, so that `ICDARTxtTextDetAnnParser` can parse the annotations into a unified format.
+
+For the `packer`, taking the file detection task as an example, its `packer` is `TextDetPacker`, and its configuration is as follows:
+
+```python
+packer=dict(type='TextDetPacker')
+```
+
+Finally, specify the `dumper`, which is generally saved in json format. Its configuration is as follows:
+
+```python
+dumper=dict(type='JsonDumper')
+```
+
+After the above configuration, the configuration file for the ICDAR2013 training set is as follows:
+
+```python
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Training_Task12_Images.zip',
+                save_name='ic13_textdet_train_img.zip',
+                md5='a443b9649fda4229c9bc52751bad08fb',
+                content=['image'],
+                mapping=[['ic13_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Training_Task1_GT.zip',
+                save_name='ic13_textdet_train_gt.zip',
+                md5='f3a425284a66cd67f455d389c972cce4',
+                content=['annotation'],
+                mapping=[['ic13_textdet_train_gt', 'annotations/train']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg'],
+        rule=[r'(\w+)\.jpg', r'gt_\1.txt']),
+    parser=dict(
+        type='ICDARTxtTextDetAnnParser',
+        remove_strs=[',', '"'],
+        format='x1 y1 x2 y2 trans',
+        separator=' ',
+        mode='xyxy'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+```
+
+To automatically generate the basic configuration after the dataset is prepared, you also need to configure the corresponding task's `config_generator`.
+
+In this example, since it is a text detection task, you only need to set the generator to `TextDetConfigGenerator`.
+
+```python
+config_generator = dict(type='TextDetConfigGenerator')
+```
+
+### Use DataPreparer to prepare customized dataset
+
+\[Coming Soon\]
diff --git a/mmocr-dev-1.x/docs/en/user_guides/data_prepare/det.md b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/det.md
new file mode 100644
index 0000000000000000000000000000000000000000..8221215000d13e747495f09aaa11398f1aa1d774
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/det.md
@@ -0,0 +1,635 @@
+# Text Detection
+
+```{note}
+This page is a manual preparation guide for datasets not yet supported by [Dataset Preparer](./dataset_preparer.md), which all these scripts will be eventually migrated into.
+```
+
+## Overview
+
+|      Dataset      |                          Images                          |                                                    |                          Annotation Files                           |         |     |
+| :---------------: | :------------------------------------------------------: | :------------------------------------------------: | :-----------------------------------------------------------------: | :-----: | :-: |
+|                   |                                                          |                      training                      |                             validation                              | testing |     |
+|     ICDAR2011     |         [homepage](https://rrc.cvc.uab.es/?ch=1)         |                         -                          |                                  -                                  |         |     |
+|     ICDAR2017     |  [homepage](https://rrc.cvc.uab.es/?ch=8&com=downloads)  | [instances_training.json](https://download.openmmlab.com/mmocr/data/icdar2017/instances_training.json) | [instances_val.json](https://download.openmmlab.com/mmocr/data/icdar2017/instances_val.json) |    -    |     |
+| CurvedSynText150k | [homepage](https://github.com/aim-uofa/AdelaiDet/blob/master/datasets/README.md) \| [Part1](https://drive.google.com/file/d/1OSJ-zId2h3t_-I7g_wUkrK-VqQy153Kj/view?usp=sharing) \| [Part2](https://drive.google.com/file/d/1EzkcOlIgEp5wmEubvHb7-J5EImHExYgY/view?usp=sharing) | [instances_training.json](https://download.openmmlab.com/mmocr/data/curvedsyntext/instances_training.json) |                                  -                                  |    -    |     |
+|      DeText       |         [homepage](https://rrc.cvc.uab.es/?ch=9)         |                         -                          |                                  -                                  |    -    |     |
+| Lecture Video DB  | [homepage](https://cvit.iiit.ac.in/research/projects/cvit-projects/lecturevideodb) |                         -                          |                                  -                                  |    -    |     |
+|       LSVT        |        [homepage](https://rrc.cvc.uab.es/?ch=16)         |                         -                          |                                  -                                  |    -    |     |
+|       IMGUR       | [homepage](https://github.com/facebookresearch/IMGUR5K-Handwriting-Dataset) |                         -                          |                                  -                                  |    -    |     |
+|       KAIST       | [homepage](http://www.iapr-tc11.org/mediawiki/index.php/KAIST_Scene_Text_Database) |                         -                          |                                  -                                  |    -    |     |
+|       MTWI        | [homepage](https://tianchi.aliyun.com/competition/entrance/231685/information?lang=en-us) |                         -                          |                                  -                                  |    -    |     |
+|       ReCTS       |        [homepage](https://rrc.cvc.uab.es/?ch=12)         |                         -                          |                                  -                                  |    -    |     |
+|     IIIT-ILST     | [homepage](http://cvit.iiit.ac.in/research/projects/cvit-projects/iiit-ilst) |                         -                          |                                  -                                  |    -    |     |
+|      VinText      | [homepage](https://github.com/VinAIResearch/dict-guided) |                         -                          |                                  -                                  |    -    |     |
+|        BID        | [homepage](https://github.com/ricardobnjunior/Brazilian-Identity-Document-Dataset) |                         -                          |                                  -                                  |    -    |     |
+|       RCTW        |      [homepage](https://rctw.vlrlab.net/index.html)      |                         -                          |                                  -                                  |    -    |     |
+|     HierText      | [homepage](https://github.com/google-research-datasets/hiertext) |                         -                          |                                  -                                  |    -    |     |
+|        ArT        |        [homepage](https://rrc.cvc.uab.es/?ch=14)         |                         -                          |                                  -                                  |    -    |     |
+
+### Install AWS CLI (optional)
+
+- Since there are some datasets that require the [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html) to be installed in advance, we provide a quick installation guide here:
+
+  ```bash
+    curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
+    unzip awscliv2.zip
+    sudo ./aws/install
+    ./aws/install -i /usr/local/aws-cli -b /usr/local/bin
+    !aws configure
+    # this command will require you to input keys, you can skip them except
+    # for the Default region name
+    # AWS Access Key ID [None]:
+    # AWS Secret Access Key [None]:
+    # Default region name [None]: us-east-1
+    # Default output format [None]
+  ```
+
+For users in China, these datasets can also be downloaded from [OpenDataLab](https://opendatalab.com/) with high speed:
+
+- [CTW1500](https://opendatalab.com/SCUT-CTW1500?source=OpenMMLab%20GitHub)
+- [ICDAR2013](https://opendatalab.com/ICDAR_2013?source=OpenMMLab%20GitHub)
+- [ICDAR2015](https://opendatalab.com/ICDAR2015?source=OpenMMLab%20GitHub)
+- [Totaltext](https://opendatalab.com/TotalText?source=OpenMMLab%20GitHub)
+- [MSRA-TD500](https://opendatalab.com/MSRA-TD500?source=OpenMMLab%20GitHub)
+
+## Important Note
+
+```{note}
+**For users who want to train models on CTW1500, ICDAR 2015/2017, and Totaltext dataset,** there might be some images containing orientation info in EXIF data. The default OpenCV
+backend used in MMCV would read them and apply the rotation on the images.  However, their gold annotations are made on the raw pixels, and such
+inconsistency results in false examples in the training set. Therefore, users should use `dict(type='LoadImageFromFile', color_type='color_ignore_orientation')` in pipelines to change MMCV's default loading behaviour. (see [DBNet's pipeline config](https://github.com/open-mmlab/mmocr/blob/main/configs/_base_/det_pipelines/dbnet_pipeline.py) for example)
+```
+
+## ICDAR 2011 (Born-Digital Images)
+
+- Step1: Download `Challenge1_Training_Task12_Images.zip`, `Challenge1_Training_Task1_GT.zip`, `Challenge1_Test_Task12_Images.zip`, and `Challenge1_Test_Task1_GT.zip` from [homepage](https://rrc.cvc.uab.es/?ch=1&com=downloads) `Task 1.1: Text Localization (2013 edition)`.
+
+  ```bash
+  mkdir icdar2011 && cd icdar2011
+  mkdir imgs && mkdir annotations
+
+  # Download ICDAR 2011
+  wget https://rrc.cvc.uab.es/downloads/Challenge1_Training_Task12_Images.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/Challenge1_Training_Task1_GT.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/Challenge1_Test_Task12_Images.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/Challenge1_Test_Task1_GT.zip --no-check-certificate
+
+  # For images
+  unzip -q Challenge1_Training_Task12_Images.zip -d imgs/training
+  unzip -q Challenge1_Test_Task12_Images.zip -d imgs/test
+  # For annotations
+  unzip -q Challenge1_Training_Task1_GT.zip -d annotations/training
+  unzip -q Challenge1_Test_Task1_GT.zip -d annotations/test
+
+  rm Challenge1_Training_Task12_Images.zip && rm Challenge1_Test_Task12_Images.zip && rm Challenge1_Training_Task1_GT.zip && rm Challenge1_Test_Task1_GT.zip
+  ```
+
+- Step 2: Generate `instances_training.json` and `instances_test.json` with the following command:
+
+  ```bash
+  python tools/dataset_converters/textdet/ic11_converter.py PATH/TO/icdar2011 --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── icdar2011
+  │   ├── imgs
+  │   ├── instances_test.json
+  │   └── instances_training.json
+  ```
+
+## ICDAR 2017
+
+- Follow similar steps as [ICDAR 2015](#icdar-2015).
+
+- The resulting directory structure looks like the following:
+
+  ```text
+  ├── icdar2017
+  │   ├── imgs
+  │   ├── annotations
+  │   ├── instances_training.json
+  │   └── instances_val.json
+  ```
+
+## CurvedSynText150k
+
+- Step1: Download [syntext1.zip](https://drive.google.com/file/d/1OSJ-zId2h3t_-I7g_wUkrK-VqQy153Kj/view?usp=sharing) and [syntext2.zip](https://drive.google.com/file/d/1EzkcOlIgEp5wmEubvHb7-J5EImHExYgY/view?usp=sharing) to `CurvedSynText150k/`.
+
+- Step2:
+
+  ```bash
+  unzip -q syntext1.zip
+  mv train.json train1.json
+  unzip images.zip
+  rm images.zip
+
+  unzip -q syntext2.zip
+  mv train.json train2.json
+  unzip images.zip
+  rm images.zip
+  ```
+
+- Step3: Download [instances_training.json](https://download.openmmlab.com/mmocr/data/curvedsyntext/instances_training.json) to `CurvedSynText150k/`
+
+- Or, generate `instances_training.json` with following command:
+
+  ```bash
+  python tools/dataset_converters/common/curvedsyntext_converter.py PATH/TO/CurvedSynText150k --nproc 4
+  ```
+
+- The resulting directory structure looks like the following:
+
+  ```text
+  ├── CurvedSynText150k
+  │   ├── syntext_word_eng
+  │   ├── emcs_imgs
+  │   └── instances_training.json
+  ```
+
+## DeText
+
+- Step1: Download `ch9_training_images.zip`, `ch9_training_localization_transcription_gt.zip`, `ch9_validation_images.zip`, and `ch9_validation_localization_transcription_gt.zip` from **Task 3: End to End** on the [homepage](https://rrc.cvc.uab.es/?ch=9).
+
+  ```bash
+  mkdir detext && cd detext
+  mkdir imgs && mkdir annotations && mkdir imgs/training && mkdir imgs/val && mkdir annotations/training && mkdir annotations/val
+
+  # Download DeText
+  wget https://rrc.cvc.uab.es/downloads/ch9_training_images.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/ch9_training_localization_transcription_gt.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/ch9_validation_images.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/ch9_validation_localization_transcription_gt.zip --no-check-certificate
+
+  # Extract images and annotations
+  unzip -q ch9_training_images.zip -d imgs/training && unzip -q ch9_training_localization_transcription_gt.zip -d annotations/training && unzip -q ch9_validation_images.zip -d imgs/val && unzip -q ch9_validation_localization_transcription_gt.zip -d annotations/val
+
+  # Remove zips
+  rm ch9_training_images.zip && rm ch9_training_localization_transcription_gt.zip && rm ch9_validation_images.zip && rm ch9_validation_localization_transcription_gt.zip
+  ```
+
+- Step2: Generate `instances_training.json` and `instances_val.json` with following command:
+
+  ```bash
+  python tools/dataset_converters/textdet/detext_converter.py PATH/TO/detext --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── detext
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_test.json
+  │   └── instances_training.json
+  ```
+
+## Lecture Video DB
+
+- Step1: Download [IIIT-CVid.zip](http://cdn.iiit.ac.in/cdn/preon.iiit.ac.in/~kartik/IIIT-CVid.zip) to `lv/`.
+
+  ```bash
+  mkdir lv && cd lv
+
+  # Download LV dataset
+  wget http://cdn.iiit.ac.in/cdn/preon.iiit.ac.in/~kartik/IIIT-CVid.zip
+  unzip -q IIIT-CVid.zip
+
+  mv IIIT-CVid/Frames imgs
+
+  rm IIIT-CVid.zip
+  ```
+
+- Step2: Generate `instances_training.json`, `instances_val.json`, and `instances_test.json` with following command:
+
+  ```bash
+  python tools/dataset_converters/textdet/lv_converter.py PATH/TO/lv --nproc 4
+  ```
+
+- The resulting directory structure looks like the following:
+
+  ```text
+  │── lv
+  │   ├── imgs
+  │   ├── instances_test.json
+  │   ├── instances_training.json
+  │   └── instances_val.json
+  ```
+
+## LSVT
+
+- Step1: Download [train_full_images_0.tar.gz](https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_0.tar.gz), [train_full_images_1.tar.gz](https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_1.tar.gz), and [train_full_labels.json](https://dataset-bj.cdn.bcebos.com/lsvt/train_full_labels.json) to `lsvt/`.
+
+  ```bash
+  mkdir lsvt && cd lsvt
+
+  # Download LSVT dataset
+  wget https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_0.tar.gz
+  wget https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_1.tar.gz
+  wget https://dataset-bj.cdn.bcebos.com/lsvt/train_full_labels.json
+
+  mkdir annotations
+  tar -xf train_full_images_0.tar.gz && tar -xf train_full_images_1.tar.gz
+  mv train_full_labels.json annotations/ && mv train_full_images_1/*.jpg train_full_images_0/
+  mv train_full_images_0 imgs
+
+  rm train_full_images_0.tar.gz && rm train_full_images_1.tar.gz && rm -rf train_full_images_1
+  ```
+
+- Step2: Generate `instances_training.json` and `instances_val.json` (optional) with the following command:
+
+  ```bash
+  # Annotations of LSVT test split is not publicly available, split a validation
+  # set by adding --val-ratio 0.2
+  python tools/dataset_converters/textdet/lsvt_converter.py PATH/TO/lsvt
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  |── lsvt
+  │   ├── imgs
+  │   ├── instances_training.json
+  │   └── instances_val.json (optional)
+  ```
+
+## IMGUR
+
+- Step1: Run `download_imgur5k.py` to download images. You can merge [PR#5](https://github.com/facebookresearch/IMGUR5K-Handwriting-Dataset/pull/5) in your local repository to enable a **much faster** parallel execution of image download.
+
+  ```bash
+  mkdir imgur && cd imgur
+
+  git clone https://github.com/facebookresearch/IMGUR5K-Handwriting-Dataset.git
+
+  # Download images from imgur.com. This may take SEVERAL HOURS!
+  python ./IMGUR5K-Handwriting-Dataset/download_imgur5k.py --dataset_info_dir ./IMGUR5K-Handwriting-Dataset/dataset_info/ --output_dir ./imgs
+
+  # For annotations
+  mkdir annotations
+  mv ./IMGUR5K-Handwriting-Dataset/dataset_info/*.json annotations
+
+  rm -rf IMGUR5K-Handwriting-Dataset
+  ```
+
+- Step2: Generate `instances_train.json`, `instance_val.json` and `instances_test.json` with the following command:
+
+  ```bash
+  python tools/dataset_converters/textdet/imgur_converter.py PATH/TO/imgur
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── imgur
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_test.json
+  │   ├── instances_training.json
+  │   └── instances_val.json
+  ```
+
+## KAIST
+
+- Step1: Complete download [KAIST_all.zip](http://www.iapr-tc11.org/mediawiki/index.php/KAIST_Scene_Text_Database) to `kaist/`.
+
+  ```bash
+  mkdir kaist && cd kaist
+  mkdir imgs && mkdir annotations
+
+  # Download KAIST dataset
+  wget http://www.iapr-tc11.org/dataset/KAIST_SceneText/KAIST_all.zip
+  unzip -q KAIST_all.zip
+
+  rm KAIST_all.zip
+  ```
+
+- Step2: Extract zips:
+
+  ```bash
+  python tools/dataset_converters/common/extract_kaist.py PATH/TO/kaist
+  ```
+
+- Step3: Generate `instances_training.json` and `instances_val.json` (optional) with following command:
+
+  ```bash
+  # Since KAIST does not provide an official split, you can split the dataset by adding --val-ratio 0.2
+  python tools/dataset_converters/textdet/kaist_converter.py PATH/TO/kaist --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── kaist
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_training.json
+  │   └── instances_val.json (optional)
+  ```
+
+## MTWI
+
+- Step1: Download `mtwi_2018_train.zip` from [homepage](https://tianchi.aliyun.com/competition/entrance/231685/information?lang=en-us).
+
+  ```bash
+  mkdir mtwi && cd mtwi
+
+  unzip -q mtwi_2018_train.zip
+  mv image_train imgs && mv txt_train annotations
+
+  rm mtwi_2018_train.zip
+  ```
+
+- Step2: Generate `instances_training.json` and `instance_val.json` (optional) with the following command:
+
+  ```bash
+  # Annotations of MTWI test split is not publicly available, split a validation
+  # set by adding --val-ratio 0.2
+  python tools/dataset_converters/textdet/mtwi_converter.py PATH/TO/mtwi --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── mtwi
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_training.json
+  │   └── instances_val.json (optional)
+  ```
+
+## ReCTS
+
+- Step1: Download [ReCTS.zip](https://datasets.cvc.uab.es/rrc/ReCTS.zip) to `rects/` from the [homepage](https://rrc.cvc.uab.es/?ch=12&com=downloads).
+
+  ```bash
+  mkdir rects && cd rects
+
+  # Download ReCTS dataset
+  # You can also find Google Drive link on the dataset homepage
+  wget https://datasets.cvc.uab.es/rrc/ReCTS.zip --no-check-certificate
+  unzip -q ReCTS.zip
+
+  mv img imgs && mv gt_unicode annotations
+
+  rm ReCTS.zip && rm -rf gt
+  ```
+
+- Step2: Generate `instances_training.json` and `instances_val.json` (optional) with following command:
+
+  ```bash
+  # Annotations of ReCTS test split is not publicly available, split a validation
+  # set by adding --val-ratio 0.2
+  python tools/dataset_converters/textdet/rects_converter.py PATH/TO/rects --nproc 4 --val-ratio 0.2
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── rects
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_val.json (optional)
+  │   └── instances_training.json
+  ```
+
+## ILST
+
+- Step1: Download `IIIT-ILST` from [onedrive](https://iiitaphyd-my.sharepoint.com/:f:/g/personal/minesh_mathew_research_iiit_ac_in/EtLvCozBgaBIoqglF4M-lHABMgNcCDW9rJYKKWpeSQEElQ?e=zToXZP)
+
+- Step2: Run the following commands
+
+  ```bash
+  unzip -q IIIT-ILST.zip && rm IIIT-ILST.zip
+  cd IIIT-ILST
+
+  # rename files
+  cd Devanagari && for i in `ls`; do mv -f $i `echo "devanagari_"$i`; done && cd ..
+  cd Malayalam && for i in `ls`; do mv -f $i `echo "malayalam_"$i`; done && cd ..
+  cd Telugu && for i in `ls`; do mv -f $i `echo "telugu_"$i`; done && cd ..
+
+  # transfer image path
+  mkdir imgs && mkdir annotations
+  mv Malayalam/{*jpg,*jpeg} imgs/ && mv Malayalam/*xml annotations/
+  mv Devanagari/*jpg imgs/ && mv Devanagari/*xml annotations/
+  mv Telugu/*jpeg imgs/ && mv Telugu/*xml annotations/
+
+  # remove unnecessary files
+  rm -rf Devanagari && rm -rf Malayalam && rm -rf Telugu && rm -rf README.txt
+  ```
+
+- Step3: Generate `instances_training.json` and `instances_val.json` (optional). Since the original dataset doesn't have a validation set, you may specify `--val-ratio` to split the dataset. E.g., if val-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  python tools/dataset_converters/textdet/ilst_converter.py    PATH/TO/IIIT-ILST --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── IIIT-ILST
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_val.json (optional)
+  │   └── instances_training.json
+  ```
+
+## VinText
+
+- Step1: Download [vintext.zip](https://drive.google.com/drive/my-drive) to `vintext`
+
+  ```bash
+  mkdir vintext && cd vintext
+
+  # Download dataset from google drive
+  wget --load-cookies /tmp/cookies.txt "https://docs.google.com/uc?export=download&confirm=$(wget --quiet --save-cookies /tmp/cookies.txt --keep-session-cookies --no-check-certificate 'https://docs.google.com/uc?export=download&id=1UUQhNvzgpZy7zXBFQp0Qox-BBjunZ0ml' -O- │ sed -rn 's/.*confirm=([0-9A-Za-z_]+).*/\1\n/p')&id=1UUQhNvzgpZy7zXBFQp0Qox-BBjunZ0ml" -O vintext.zip && rm -rf /tmp/cookies.txt
+
+  # Extract images and annotations
+  unzip -q vintext.zip && rm vintext.zip
+  mv vietnamese/labels ./ && mv vietnamese/test_image ./ && mv vietnamese/train_images ./ && mv vietnamese/unseen_test_images ./
+  rm -rf vietnamese
+
+  # Rename files
+  mv labels annotations && mv test_image test && mv train_images  training && mv unseen_test_images  unseen_test
+  mkdir imgs
+  mv training imgs/ && mv test imgs/ && mv unseen_test imgs/
+  ```
+
+- Step2: Generate `instances_training.json`, `instances_test.json` and `instances_unseen_test.json`
+
+  ```bash
+  python tools/dataset_converters/textdet/vintext_converter.py PATH/TO/vintext --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── vintext
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_test.json
+  │   ├── instances_unseen_test.json
+  │   └── instances_training.json
+  ```
+
+## BID
+
+- Step1: Download [BID Dataset.zip](https://drive.google.com/file/d/1Oi88TRcpdjZmJ79WDLb9qFlBNG8q2De6/view)
+
+- Step2: Run the following commands to preprocess the dataset
+
+  ```bash
+  # Rename
+  mv BID\ Dataset.zip BID_Dataset.zip
+
+  # Unzip and Rename
+  unzip -q BID_Dataset.zip && rm BID_Dataset.zip
+  mv BID\ Dataset BID
+
+  # The BID dataset has a problem of permission, and you may
+  # add permission for this file
+  chmod -R 777 BID
+  cd BID
+  mkdir imgs && mkdir annotations
+
+  # For images and annotations
+  mv CNH_Aberta/*in.jpg imgs && mv CNH_Aberta/*txt annotations && rm -rf CNH_Aberta
+  mv CNH_Frente/*in.jpg imgs && mv CNH_Frente/*txt annotations && rm -rf CNH_Frente
+  mv CNH_Verso/*in.jpg imgs && mv CNH_Verso/*txt annotations && rm -rf CNH_Verso
+  mv CPF_Frente/*in.jpg imgs && mv CPF_Frente/*txt annotations && rm -rf CPF_Frente
+  mv CPF_Verso/*in.jpg imgs && mv CPF_Verso/*txt annotations && rm -rf CPF_Verso
+  mv RG_Aberto/*in.jpg imgs && mv RG_Aberto/*txt annotations && rm -rf RG_Aberto
+  mv RG_Frente/*in.jpg imgs && mv RG_Frente/*txt annotations && rm -rf RG_Frente
+  mv RG_Verso/*in.jpg imgs && mv RG_Verso/*txt annotations && rm -rf RG_Verso
+
+  # Remove unnecessary files
+  rm -rf desktop.ini
+  ```
+
+- Step3: - Step3: Generate `instances_training.json` and `instances_val.json` (optional). Since the original dataset doesn't have a validation set, you may specify `--val-ratio` to split the dataset. E.g., if val-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  python tools/dataset_converters/textdet/bid_converter.py PATH/TO/BID --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── BID
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_training.json
+  │   └── instances_val.json (optional)
+  ```
+
+## RCTW
+
+- Step1: Download `train_images.zip.001`, `train_images.zip.002`, and `train_gts.zip` from the [homepage](https://rctw.vlrlab.net/dataset.html), extract the zips to `rctw/imgs` and `rctw/annotations`, respectively.
+
+- Step2: Generate `instances_training.json` and `instances_val.json` (optional). Since the test annotations are not publicly available, you may specify `--val-ratio` to split the dataset. E.g., if val-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  # Annotations of RCTW test split is not publicly available, split a validation set by adding --val-ratio 0.2
+  python tools/dataset_converters/textdet/rctw_converter.py PATH/TO/rctw --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── rctw
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_training.json
+  │   └── instances_val.json (optional)
+  ```
+
+## HierText
+
+- Step1 (optional): Install [AWS CLI](https://mmocr.readthedocs.io/en/latest/datasets/det.html#install-aws-cli-optional).
+
+- Step2: Clone [HierText](https://github.com/google-research-datasets/hiertext) repo to get annotations
+
+  ```bash
+  mkdir HierText
+  git clone https://github.com/google-research-datasets/hiertext.git
+  ```
+
+- Step3: Download `train.tgz`, `validation.tgz` from aws
+
+  ```bash
+  aws s3 --no-sign-request cp s3://open-images-dataset/ocr/train.tgz .
+  aws s3 --no-sign-request cp s3://open-images-dataset/ocr/validation.tgz .
+  ```
+
+- Step4: Process raw data
+
+  ```bash
+  # process annotations
+  mv hiertext/gt ./
+  rm -rf hiertext
+  mv gt annotations
+  gzip -d annotations/train.jsonl.gz
+  gzip -d annotations/validation.jsonl.gz
+  # process images
+  mkdir imgs
+  mv train.tgz imgs/
+  mv validation.tgz imgs/
+  tar -xzvf imgs/train.tgz
+  tar -xzvf imgs/validation.tgz
+  ```
+
+- Step5: Generate `instances_training.json` and `instance_val.json`. HierText includes different levels of annotation, from paragraph, line, to word. Check the original [paper](https://arxiv.org/pdf/2203.15143.pdf) for details. E.g. set `--level paragraph` to get paragraph-level annotation. Set `--level line` to get line-level annotation. set `--level word` to get word-level annotation.
+
+  ```bash
+  # Collect word annotation from HierText  --level word
+  python tools/dataset_converters/textdet/hiertext_converter.py PATH/TO/HierText --level word --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── HierText
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_training.json
+  │   └── instances_val.json
+  ```
+
+## ArT
+
+- Step1: Download `train_images.tar.gz`, and `train_labels.json` from the [homepage](https://rrc.cvc.uab.es/?ch=14&com=downloads) to `art/`
+
+  ```bash
+  mkdir art && cd art
+  mkdir annotations
+
+  # Download ArT dataset
+  wget https://dataset-bj.cdn.bcebos.com/art/train_images.tar.gz --no-check-certificate
+  wget https://dataset-bj.cdn.bcebos.com/art/train_labels.json --no-check-certificate
+
+  # Extract
+  tar -xf train_images.tar.gz
+  mv train_images imgs
+  mv train_labels.json annotations/
+
+  # Remove unnecessary files
+  rm train_images.tar.gz
+  ```
+
+- Step2: Generate `instances_training.json` and `instances_val.json` (optional). Since the test annotations are not publicly available, you may specify `--val-ratio` to split the dataset. E.g., if val-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  # Annotations of ArT test split is not publicly available, split a validation set by adding --val-ratio 0.2
+  python tools/data/textdet/art_converter.py PATH/TO/art --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── art
+  │   ├── annotations
+  │   ├── imgs
+  │   ├── instances_training.json
+  │   └── instances_val.json (optional)
+  ```
diff --git a/mmocr-dev-1.x/docs/en/user_guides/data_prepare/kie.md b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/kie.md
new file mode 100644
index 0000000000000000000000000000000000000000..9d324383c45726c564ed86d040a93e0c6fcc2d80
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/kie.md
@@ -0,0 +1,42 @@
+# Key Information Extraction
+
+```{note}
+This page is a manual preparation guide for datasets not yet supported by [Dataset Preparer](./dataset_preparer.md), which all these scripts will be eventually migrated into.
+```
+
+## Overview
+
+The structure of the key information extraction dataset directory is organized as follows.
+
+```text
+└── wildreceipt
+  ├── class_list.txt
+  ├── dict.txt
+  ├── image_files
+  ├── openset_train.txt
+  ├── openset_test.txt
+  ├── test.txt
+  └── train.txt
+```
+
+## Preparation Steps
+
+### WildReceipt
+
+- Just download and extract [wildreceipt.tar](https://download.openmmlab.com/mmocr/data/wildreceipt.tar).
+
+### WildReceiptOpenset
+
+- Step0: have [WildReceipt](#WildReceipt) prepared.
+- Step1: Convert annotation files to OpenSet format:
+
+```bash
+# You may find more available arguments by running
+# python tools/data/kie/closeset_to_openset.py -h
+python tools/data/kie/closeset_to_openset.py data/wildreceipt/train.txt data/wildreceipt/openset_train.txt
+python tools/data/kie/closeset_to_openset.py data/wildreceipt/test.txt data/wildreceipt/openset_test.txt
+```
+
+```{note}
+You can learn more about the key differences between CloseSet and OpenSet annotations in our [tutorial](../tutorials/kie_closeset_openset.md).
+```
diff --git a/mmocr-dev-1.x/docs/en/user_guides/data_prepare/recog.md b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/recog.md
new file mode 100644
index 0000000000000000000000000000000000000000..e4a021581c770d8455eec1f69cb42320dc67c555
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/data_prepare/recog.md
@@ -0,0 +1,784 @@
+# Text Recognition
+
+```{note}
+This page is a manual preparation guide for datasets not yet supported by [Dataset Preparer](./dataset_preparer.md), which all these scripts will be eventually migrated into.
+```
+
+## Overview
+
+|     Dataset      |                         images                          |                         annotation file                          |                          annotation file                          |
+| :--------------: | :-----------------------------------------------------: | :--------------------------------------------------------------: | :---------------------------------------------------------------: |
+|                  |                                                         |                             training                             |                               test                                |
+|    coco_text     | [homepage](https://rrc.cvc.uab.es/?ch=5&com=downloads)  |                    [train_labels.json](#TODO)                    |                                 -                                 |
+|    ICDAR2011     |        [homepage](https://rrc.cvc.uab.es/?ch=1)         |                                -                                 |                                 -                                 |
+|     SynthAdd     | [SynthText_Add.zip](https://pan.baidu.com/s/1uV0LtoNmcxbO-0YA7Ch4dg)  (code:627x) | [train_labels.json](https://download.openmmlab.com/mmocr/data/1.x/recog/synthtext_add/train_labels.json) |                                 -                                 |
+|     OpenVINO     | [Open Images](https://github.com/cvdfoundation/open-images-dataset) | [annotations](https://storage.openvinotoolkit.org/repositories/openvino_training_extensions/datasets/open_images_v5_text) | [annotations](https://storage.openvinotoolkit.org/repositories/openvino_training_extensions/datasets/open_images_v5_text) |
+|      DeText      |        [homepage](https://rrc.cvc.uab.es/?ch=9)         |                                -                                 |                                 -                                 |
+| Lecture Video DB | [homepage](https://cvit.iiit.ac.in/research/projects/cvit-projects/lecturevideodb) |                                -                                 |                                 -                                 |
+|       LSVT       |        [homepage](https://rrc.cvc.uab.es/?ch=16)        |                                -                                 |                                 -                                 |
+|      IMGUR       | [homepage](https://github.com/facebookresearch/IMGUR5K-Handwriting-Dataset) |                                -                                 |                                 -                                 |
+|      KAIST       | [homepage](http://www.iapr-tc11.org/mediawiki/index.php/KAIST_Scene_Text_Database) |                                -                                 |                                 -                                 |
+|       MTWI       | [homepage](https://tianchi.aliyun.com/competition/entrance/231685/information?lang=en-us) |                                -                                 |                                 -                                 |
+|      ReCTS       |        [homepage](https://rrc.cvc.uab.es/?ch=12)        |                                -                                 |                                 -                                 |
+|    IIIT-ILST     | [homepage](http://cvit.iiit.ac.in/research/projects/cvit-projects/iiit-ilst) |                                -                                 |                                 -                                 |
+|     VinText      | [homepage](https://github.com/VinAIResearch/dict-guided) |                                -                                 |                                 -                                 |
+|       BID        | [homepage](https://github.com/ricardobnjunior/Brazilian-Identity-Document-Dataset) |                                -                                 |                                 -                                 |
+|       RCTW       |     [homepage](https://rctw.vlrlab.net/index.html)      |                                -                                 |                                 -                                 |
+|     HierText     | [homepage](https://github.com/google-research-datasets/hiertext) |                                -                                 |                                 -                                 |
+|       ArT        |        [homepage](https://rrc.cvc.uab.es/?ch=14)        |                                -                                 |                                 -                                 |
+
+(\*) Since the official homepage is unavailable now, we provide an alternative for quick reference. However, we do not guarantee the correctness of the dataset.
+
+### Install AWS CLI (optional)
+
+- Since there are some datasets that require the [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html) to be installed in advance, we provide a quick installation guide here:
+
+  ```bash
+    curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
+    unzip awscliv2.zip
+    sudo ./aws/install
+    ./aws/install -i /usr/local/aws-cli -b /usr/local/bin
+    !aws configure
+    # this command will require you to input keys, you can skip them except
+    # for the Default region name
+    # AWS Access Key ID [None]:
+    # AWS Secret Access Key [None]:
+    # Default region name [None]: us-east-1
+    # Default output format [None]
+  ```
+
+For users in China, these datasets can also be downloaded from [OpenDataLab](https://opendatalab.com/) with high speed:
+
+- [icdar_2013](https://opendatalab.com/ICDAR_2013?source=OpenMMLab%20GitHub)
+- [icdar_2015](https://opendatalab.com/ICDAR2015?source=OpenMMLab%20GitHub)
+- [IIIT5K](https://opendatalab.com/IIIT_5K?source=OpenMMLab%20GitHub)
+- [ct80](https://opendatalab.com/CUTE_80?source=OpenMMLab%20GitHub)
+- [svt](https://opendatalab.com/SVT?source=OpenMMLab%20GitHub)
+- [Totaltext](https://opendatalab.com/TotalText?source=OpenMMLab%20GitHub)
+- [IAM](https://opendatalab.com/IAM_Handwriting?source=OpenMMLab%20GitHub)
+
+## ICDAR 2011 (Born-Digital Images)
+
+- Step1: Download `Challenge1_Training_Task3_Images_GT.zip`, `Challenge1_Test_Task3_Images.zip`, and `Challenge1_Test_Task3_GT.txt` from [homepage](https://rrc.cvc.uab.es/?ch=1&com=downloads) `Task 1.3: Word Recognition (2013 edition)`.
+
+  ```bash
+  mkdir icdar2011 && cd icdar2011
+  mkdir annotations
+
+  # Download ICDAR 2011
+  wget https://rrc.cvc.uab.es/downloads/Challenge1_Training_Task3_Images_GT.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/Challenge1_Test_Task3_Images.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/Challenge1_Test_Task3_GT.txt --no-check-certificate
+
+  # For images
+  mkdir crops
+  unzip -q Challenge1_Training_Task3_Images_GT.zip -d crops/train
+  unzip -q Challenge1_Test_Task3_Images.zip -d crops/test
+
+  # For annotations
+  mv Challenge1_Test_Task3_GT.txt annotations && mv crops/train/gt.txt annotations/Challenge1_Train_Task3_GT.txt
+  ```
+
+- Step2: Convert original annotations to `train_labels.json` and `test_labels.json` with the following command:
+
+  ```bash
+  python tools/dataset_converters/textrecog/ic11_converter.py PATH/TO/icdar2011
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── icdar2011
+  │   ├── crops
+  │   ├── train_labels.json
+  │   └── test_labels.json
+  ```
+
+## coco_text
+
+- Step1: Download from [homepage](https://rrc.cvc.uab.es/?ch=5&com=downloads)
+
+- Step2: Download [train_labels.json](https://download.openmmlab.com/mmocr/data/mixture/coco_text/train_labels.json)
+
+- After running the above codes, the directory structure
+  should be as follows:
+
+  ```text
+  ├── coco_text
+  │   ├── train_labels.json
+  │   └── train_words
+  ```
+
+## SynthAdd
+
+- Step1: Download `SynthText_Add.zip` from [SynthAdd](https://pan.baidu.com/s/1uV0LtoNmcxbO-0YA7Ch4dg) (code:627x))
+
+- Step2: Download [train_labels.json](https://download.openmmlab.com/mmocr/data/1.x/recog/synthtext_add/train_labels.json)
+
+- Step3:
+
+  ```bash
+  mkdir SynthAdd && cd SynthAdd
+
+  mv /path/to/SynthText_Add.zip .
+
+  unzip SynthText_Add.zip
+
+  mv /path/to/train_labels.json .
+
+  # create soft link
+  cd /path/to/mmocr/data/recog
+
+  ln -s /path/to/SynthAdd SynthAdd
+
+  ```
+
+- After running the above codes, the directory structure
+  should be as follows:
+
+  ```text
+  ├── SynthAdd
+  │   ├── train_labels.json
+  │   └── SynthText_Add
+  ```
+
+## OpenVINO
+
+- Step1 (optional): Install [AWS CLI](https://mmocr.readthedocs.io/en/latest/datasets/recog.html#install-aws-cli-optional).
+
+- Step2: Download [Open Images](https://github.com/cvdfoundation/open-images-dataset#download-images-with-bounding-boxes-annotations) subsets `train_1`, `train_2`, `train_5`, `train_f`, and `validation` to `openvino/`.
+
+  ```bash
+  mkdir openvino && cd openvino
+
+  # Download Open Images subsets
+  for s in 1 2 5 f; do
+    aws s3 --no-sign-request cp s3://open-images-dataset/tar/train_${s}.tar.gz .
+  done
+  aws s3 --no-sign-request cp s3://open-images-dataset/tar/validation.tar.gz .
+
+  # Download annotations
+  for s in 1 2 5 f; do
+    wget https://storage.openvinotoolkit.org/repositories/openvino_training_extensions/datasets/open_images_v5_text/text_spotting_openimages_v5_train_${s}.json
+  done
+  wget https://storage.openvinotoolkit.org/repositories/openvino_training_extensions/datasets/open_images_v5_text/text_spotting_openimages_v5_validation.json
+
+  # Extract images
+  mkdir -p openimages_v5/val
+  for s in 1 2 5 f; do
+    tar zxf train_${s}.tar.gz -C openimages_v5
+  done
+  tar zxf validation.tar.gz -C openimages_v5/val
+  ```
+
+- Step3: Generate `train_{1,2,5,f}_labels.json`, `val_labels.json` and crop images using 4 processes with the following command:
+
+  ```bash
+  python tools/dataset_converters/textrecog/openvino_converter.py /path/to/openvino 4
+  ```
+
+- After running the above codes, the directory structure
+  should be as follows:
+
+  ```text
+  ├── OpenVINO
+  │   ├── image_1
+  │   ├── image_2
+  │   ├── image_5
+  │   ├── image_f
+  │   ├── image_val
+  │   ├── train_1_labels.json
+  │   ├── train_2_labels.json
+  │   ├── train_5_labels.json
+  │   ├── train_f_labels.json
+  │   └── val_labels.json
+  ```
+
+## DeText
+
+- Step1: Download `ch9_training_images.zip`, `ch9_training_localization_transcription_gt.zip`, `ch9_validation_images.zip`, and `ch9_validation_localization_transcription_gt.zip` from **Task 3: End to End** on the [homepage](https://rrc.cvc.uab.es/?ch=9).
+
+  ```bash
+  mkdir detext && cd detext
+  mkdir imgs && mkdir annotations && mkdir imgs/training && mkdir imgs/val && mkdir annotations/training && mkdir annotations/val
+
+  # Download DeText
+  wget https://rrc.cvc.uab.es/downloads/ch9_training_images.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/ch9_training_localization_transcription_gt.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/ch9_validation_images.zip --no-check-certificate
+  wget https://rrc.cvc.uab.es/downloads/ch9_validation_localization_transcription_gt.zip --no-check-certificate
+
+  # Extract images and annotations
+  unzip -q ch9_training_images.zip -d imgs/training && unzip -q ch9_training_localization_transcription_gt.zip -d annotations/training && unzip -q ch9_validation_images.zip -d imgs/val && unzip -q ch9_validation_localization_transcription_gt.zip -d annotations/val
+
+  # Remove zips
+  rm ch9_training_images.zip && rm ch9_training_localization_transcription_gt.zip && rm ch9_validation_images.zip && rm ch9_validation_localization_transcription_gt.zip
+  ```
+
+- Step2: Generate `train_labels.json` and `test_labels.json` with following command:
+
+  ```bash
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise
+  # vertical images will be filtered and stored in PATH/TO/detext/ignores
+  python tools/dataset_converters/textrecog/detext_converter.py PATH/TO/detext --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── detext
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── test_labels.json
+  ```
+
+## NAF
+
+- Step1: Download [labeled_images.tar.gz](https://github.com/herobd/NAF_dataset/releases/tag/v1.0) to `naf/`.
+
+  ```bash
+  mkdir naf && cd naf
+
+  # Download NAF dataset
+  wget https://github.com/herobd/NAF_dataset/releases/download/v1.0/labeled_images.tar.gz
+  tar -zxf labeled_images.tar.gz
+
+  # For images
+  mkdir annotations && mv labeled_images imgs
+
+  # For annotations
+  git clone https://github.com/herobd/NAF_dataset.git
+  mv NAF_dataset/train_valid_test_split.json annotations/ && mv NAF_dataset/groups annotations/
+
+  rm -rf NAF_dataset && rm labeled_images.tar.gz
+  ```
+
+- Step2: Generate `train_labels.json`, `val_labels.json`, and `test_labels.json` with following command:
+
+  ```bash
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise
+  # vertical images will be filtered and stored in PATH/TO/naf/ignores
+  python tools/dataset_converters/textrecog/naf_converter.py PATH/TO/naf --nproc 4
+
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── naf
+  │   ├── crops
+  │   ├── train_labels.json
+  │   ├── val_labels.json
+  │   └── test_labels.json
+  ```
+
+## Lecture Video DB
+
+```{warning}
+This section is not fully tested yet.
+```
+
+```{note}
+The LV dataset has already provided cropped images and the corresponding annotations
+```
+
+- Step1: Download [IIIT-CVid.zip](http://cdn.iiit.ac.in/cdn/preon.iiit.ac.in/~kartik/IIIT-CVid.zip) to `lv/`.
+
+  ```bash
+  mkdir lv && cd lv
+
+  # Download LV dataset
+  wget http://cdn.iiit.ac.in/cdn/preon.iiit.ac.in/~kartik/IIIT-CVid.zip
+  unzip -q IIIT-CVid.zip
+
+  # For image
+  mv IIIT-CVid/Crops ./
+
+  # For annotation
+  mv IIIT-CVid/train.txt train_labels.json && mv IIIT-CVid/val.txt val_label.txt && mv IIIT-CVid/test.txt test_labels.json
+
+  rm IIIT-CVid.zip
+  ```
+
+- Step2: Generate `train_labels.json`, `val.json`, and `test.json` with following command:
+
+  ```bash
+  python tools/dataset_converters/textdreog/lv_converter.py PATH/TO/lv
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── lv
+  │   ├── Crops
+  │   ├── train_labels.json
+  │   └── test_labels.json
+  ```
+
+## LSVT
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download [train_full_images_0.tar.gz](https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_0.tar.gz), [train_full_images_1.tar.gz](https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_1.tar.gz), and [train_full_labels.json](https://dataset-bj.cdn.bcebos.com/lsvt/train_full_labels.json) to `lsvt/`.
+
+  ```bash
+  mkdir lsvt && cd lsvt
+
+  # Download LSVT dataset
+  wget https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_0.tar.gz
+  wget https://dataset-bj.cdn.bcebos.com/lsvt/train_full_images_1.tar.gz
+  wget https://dataset-bj.cdn.bcebos.com/lsvt/train_full_labels.json
+
+  mkdir annotations
+  tar -xf train_full_images_0.tar.gz && tar -xf train_full_images_1.tar.gz
+  mv train_full_labels.json annotations/ && mv train_full_images_1/*.jpg train_full_images_0/
+  mv train_full_images_0 imgs
+
+  rm train_full_images_0.tar.gz && rm train_full_images_1.tar.gz && rm -rf train_full_images_1
+  ```
+
+- Step2: Generate `train_labels.json` and `val_label.json` (optional) with the following command:
+
+  ```bash
+  # Annotations of LSVT test split is not publicly available, split a validation
+  # set by adding --val-ratio 0.2
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise
+  # vertical images will be filtered and stored in PATH/TO/lsvt/ignores
+  python tools/dataset_converters/textdrecog/lsvt_converter.py PATH/TO/lsvt --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── lsvt
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
+
+## IMGUR
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Run `download_imgur5k.py` to download images. You can merge [PR#5](https://github.com/facebookresearch/IMGUR5K-Handwriting-Dataset/pull/5) in your local repository to enable a **much faster** parallel execution of image download.
+
+  ```bash
+  mkdir imgur && cd imgur
+
+  git clone https://github.com/facebookresearch/IMGUR5K-Handwriting-Dataset.git
+
+  # Download images from imgur.com. This may take SEVERAL HOURS!
+  python ./IMGUR5K-Handwriting-Dataset/download_imgur5k.py --dataset_info_dir ./IMGUR5K-Handwriting-Dataset/dataset_info/ --output_dir ./imgs
+
+  # For annotations
+  mkdir annotations
+  mv ./IMGUR5K-Handwriting-Dataset/dataset_info/*.json annotations
+
+  rm -rf IMGUR5K-Handwriting-Dataset
+  ```
+
+- Step2: Generate `train_labels.json`, `val_label.txt` and `test_labels.json` and crop images with the following command:
+
+  ```bash
+  python tools/dataset_converters/textrecog/imgur_converter.py PATH/TO/imgur
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── imgur
+  │   ├── crops
+  │   ├── train_labels.json
+  │   ├── test_labels.json
+  │   └── val_label.json
+  ```
+
+## KAIST
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download [KAIST_all.zip](http://www.iapr-tc11.org/mediawiki/index.php/KAIST_Scene_Text_Database) to `kaist/`.
+
+  ```bash
+  mkdir kaist && cd kaist
+  mkdir imgs && mkdir annotations
+
+  # Download KAIST dataset
+  wget http://www.iapr-tc11.org/dataset/KAIST_SceneText/KAIST_all.zip
+  unzip -q KAIST_all.zip && rm KAIST_all.zip
+  ```
+
+- Step2: Extract zips:
+
+  ```bash
+  python tools/dataset_converters/common/extract_kaist.py PATH/TO/kaist
+  ```
+
+- Step3: Generate `train_labels.json` and `val_label.json` (optional) with following command:
+
+  ```bash
+  # Since KAIST does not provide an official split, you can split the dataset by adding --val-ratio 0.2
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise
+  # vertical images will be filtered and stored in PATH/TO/kaist/ignores
+  python tools/dataset_converters/textrecog/kaist_converter.py PATH/TO/kaist --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── kaist
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
+
+## MTWI
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download `mtwi_2018_train.zip` from [homepage](https://tianchi.aliyun.com/competition/entrance/231685/information?lang=en-us).
+
+  ```bash
+  mkdir mtwi && cd mtwi
+
+  unzip -q mtwi_2018_train.zip
+  mv image_train imgs && mv txt_train annotations
+
+  rm mtwi_2018_train.zip
+  ```
+
+- Step2: Generate `train_labels.json` and `val_label.json` (optional) with the following command:
+
+  ```bash
+  # Annotations of MTWI test split is not publicly available, split a validation
+  # set by adding --val-ratio 0.2
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise
+  # vertical images will be filtered and stored in PATH/TO/mtwi/ignores
+  python tools/dataset_converters/textrecog/mtwi_converter.py PATH/TO/mtwi --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── mtwi
+  │   ├── crops
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
+
+## ReCTS
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download [ReCTS.zip](https://datasets.cvc.uab.es/rrc/ReCTS.zip) to `rects/` from the [homepage](https://rrc.cvc.uab.es/?ch=12&com=downloads).
+
+  ```bash
+  mkdir rects && cd rects
+
+  # Download ReCTS dataset
+  # You can also find Google Drive link on the dataset homepage
+  wget https://datasets.cvc.uab.es/rrc/ReCTS.zip --no-check-certificate
+  unzip -q ReCTS.zip
+
+  mv img imgs && mv gt_unicode annotations
+
+  rm ReCTS.zip -f && rm -rf gt
+  ```
+
+- Step2: Generate `train_labels.json` and `val_label.json` (optional) with the following command:
+
+  ```bash
+  # Annotations of ReCTS test split is not publicly available, split a validation
+  # set by adding --val-ratio 0.2
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise
+  # vertical images will be filtered and stored in PATH/TO/rects/ignores
+  python tools/dataset_converters/textrecog/rects_converter.py PATH/TO/rects --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── rects
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
+
+## ILST
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download `IIIT-ILST.zip` from [onedrive link](https://iiitaphyd-my.sharepoint.com/:f:/g/personal/minesh_mathew_research_iiit_ac_in/EtLvCozBgaBIoqglF4M-lHABMgNcCDW9rJYKKWpeSQEElQ?e=zToXZP)
+
+- Step2: Run the following commands
+
+  ```bash
+  unzip -q IIIT-ILST.zip && rm IIIT-ILST.zip
+  cd IIIT-ILST
+
+  # rename files
+  cd Devanagari && for i in `ls`; do mv -f $i `echo "devanagari_"$i`; done && cd ..
+  cd Malayalam && for i in `ls`; do mv -f $i `echo "malayalam_"$i`; done && cd ..
+  cd Telugu && for i in `ls`; do mv -f $i `echo "telugu_"$i`; done && cd ..
+
+  # transfer image path
+  mkdir imgs && mkdir annotations
+  mv Malayalam/{*jpg,*jpeg} imgs/ && mv Malayalam/*xml annotations/
+  mv Devanagari/*jpg imgs/ && mv Devanagari/*xml annotations/
+  mv Telugu/*jpeg imgs/ && mv Telugu/*xml annotations/
+
+  # remove unnecessary files
+  rm -rf Devanagari && rm -rf Malayalam && rm -rf Telugu && rm -rf README.txt
+  ```
+
+- Step3: Generate `train_labels.json` and `val_label.json` (optional) and crop images using 4 processes with the following command (add `--preserve-vertical` if you wish to preserve the images containing vertical texts). Since the original dataset doesn't have a validation set, you may specify `--val-ratio` to split the dataset. E.g., if val-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  python tools/dataset_converters/textrecog/ilst_converter.py PATH/TO/IIIT-ILST --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── IIIT-ILST
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
+
+## VinText
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download [vintext.zip](https://drive.google.com/drive/my-drive) to `vintext`
+
+  ```bash
+  mkdir vintext && cd vintext
+
+  # Download dataset from google drive
+  wget --load-cookies /tmp/cookies.txt "https://docs.google.com/uc?export=download&confirm=$(wget --quiet --save-cookies /tmp/cookies.txt --keep-session-cookies --no-check-certificate 'https://docs.google.com/uc?export=download&id=1UUQhNvzgpZy7zXBFQp0Qox-BBjunZ0ml' -O- | sed -rn 's/.*confirm=([0-9A-Za-z_]+).*/\1\n/p')&id=1UUQhNvzgpZy7zXBFQp0Qox-BBjunZ0ml" -O vintext.zip && rm -rf /tmp/cookies.txt
+
+  # Extract images and annotations
+  unzip -q vintext.zip && rm vintext.zip
+  mv vietnamese/labels ./ && mv vietnamese/test_image ./ && mv vietnamese/train_images ./ && mv vietnamese/unseen_test_images ./
+  rm -rf vietnamese
+
+  # Rename files
+  mv labels annotations && mv test_image test && mv train_images  training && mv unseen_test_images  unseen_test
+  mkdir imgs
+  mv training imgs/ && mv test imgs/ && mv unseen_test imgs/
+  ```
+
+- Step2: Generate `train_labels.json`, `test_labels.json`, `unseen_test_labels.json`,  and crop images using 4 processes with the following command (add `--preserve-vertical` if you wish to preserve the images containing vertical texts).
+
+  ```bash
+  python tools/dataset_converters/textrecog/vintext_converter.py PATH/TO/vietnamese --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── vintext
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   ├── test_labels.json
+  │   └── unseen_test_labels.json
+  ```
+
+## BID
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download [BID Dataset.zip](https://drive.google.com/file/d/1Oi88TRcpdjZmJ79WDLb9qFlBNG8q2De6/view)
+
+- Step2: Run the following commands to preprocess the dataset
+
+  ```bash
+  # Rename
+  mv BID\ Dataset.zip BID_Dataset.zip
+
+  # Unzip and Rename
+  unzip -q BID_Dataset.zip && rm BID_Dataset.zip
+  mv BID\ Dataset BID
+
+  # The BID dataset has a problem of permission, and you may
+  # add permission for this file
+  chmod -R 777 BID
+  cd BID
+  mkdir imgs && mkdir annotations
+
+  # For images and annotations
+  mv CNH_Aberta/*in.jpg imgs && mv CNH_Aberta/*txt annotations && rm -rf CNH_Aberta
+  mv CNH_Frente/*in.jpg imgs && mv CNH_Frente/*txt annotations && rm -rf CNH_Frente
+  mv CNH_Verso/*in.jpg imgs && mv CNH_Verso/*txt annotations && rm -rf CNH_Verso
+  mv CPF_Frente/*in.jpg imgs && mv CPF_Frente/*txt annotations && rm -rf CPF_Frente
+  mv CPF_Verso/*in.jpg imgs && mv CPF_Verso/*txt annotations && rm -rf CPF_Verso
+  mv RG_Aberto/*in.jpg imgs && mv RG_Aberto/*txt annotations && rm -rf RG_Aberto
+  mv RG_Frente/*in.jpg imgs && mv RG_Frente/*txt annotations && rm -rf RG_Frente
+  mv RG_Verso/*in.jpg imgs && mv RG_Verso/*txt annotations && rm -rf RG_Verso
+
+  # Remove unnecessary files
+  rm -rf desktop.ini
+  ```
+
+- Step3: Generate `train_labels.json` and `val_label.json` (optional) and crop images using 4 processes with the following command (add `--preserve-vertical` if you wish to preserve the images containing vertical texts). Since the original dataset doesn't have a validation set, you may specify `--val-ratio` to split the dataset. E.g., if test-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  python tools/dataset_converters/textrecog/bid_converter.py PATH/TO/BID --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  ├── BID
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
+
+## RCTW
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download `train_images.zip.001`, `train_images.zip.002`, and `train_gts.zip` from the [homepage](https://rctw.vlrlab.net/dataset.html), extract the zips to `rctw/imgs` and `rctw/annotations`, respectively.
+
+- Step2: Generate `train_labels.json` and `val_label.json` (optional). Since the original dataset doesn't have a validation set, you may specify `--val-ratio` to split the dataset. E.g., if val-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  # Annotations of RCTW test split is not publicly available, split a validation set by adding --val-ratio 0.2
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise vertical images will be filtered and stored in PATH/TO/rctw/ignores
+  python tools/dataset_converters/textrecog/rctw_converter.py PATH/TO/rctw --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── rctw
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
+
+## HierText
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1 (optional): Install [AWS CLI](https://mmocr.readthedocs.io/en/latest/datasets/recog.html#install-aws-cli-optional).
+
+- Step2: Clone [HierText](https://github.com/google-research-datasets/hiertext) repo to get annotations
+
+  ```bash
+  mkdir HierText
+  git clone https://github.com/google-research-datasets/hiertext.git
+  ```
+
+- Step3: Download `train.tgz`, `validation.tgz` from aws
+
+  ```bash
+  aws s3 --no-sign-request cp s3://open-images-dataset/ocr/train.tgz .
+  aws s3 --no-sign-request cp s3://open-images-dataset/ocr/validation.tgz .
+  ```
+
+- Step4: Process raw data
+
+  ```bash
+  # process annotations
+  mv hiertext/gt ./
+  rm -rf hiertext
+  mv gt annotations
+  gzip -d annotations/train.json.gz
+  gzip -d annotations/validation.json.gz
+  # process images
+  mkdir imgs
+  mv train.tgz imgs/
+  mv validation.tgz imgs/
+  tar -xzvf imgs/train.tgz
+  tar -xzvf imgs/validation.tgz
+  ```
+
+- Step5: Generate `train_labels.json` and `val_label.json`. HierText includes different levels of annotation, including `paragraph`, `line`, and `word`. Check the original [paper](https://arxiv.org/pdf/2203.15143.pdf) for details. E.g. set `--level paragraph` to get paragraph-level annotation. Set `--level line` to get line-level annotation. set `--level word` to get word-level annotation.
+
+  ```bash
+  # Collect word annotation from HierText  --level word
+  # Add --preserve-vertical to preserve vertical texts for training, otherwise vertical images will be filtered and stored in PATH/TO/HierText/ignores
+  python tools/dataset_converters/textrecog/hiertext_converter.py PATH/TO/HierText --level word --nproc 4
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── HierText
+  │   ├── crops
+  │   ├── ignores
+  │   ├── train_labels.json
+  │   └── val_label.json
+  ```
+
+## ArT
+
+```{warning}
+This section is not fully tested yet.
+```
+
+- Step1: Download `train_images.tar.gz`, and `train_labels.json` from the [homepage](https://rrc.cvc.uab.es/?ch=14&com=downloads) to `art/`
+
+  ```bash
+  mkdir art && cd art
+  mkdir annotations
+
+  # Download ArT dataset
+  wget https://dataset-bj.cdn.bcebos.com/art/train_task2_images.tar.gz
+  wget https://dataset-bj.cdn.bcebos.com/art/train_task2_labels.json
+
+  # Extract
+  tar -xf train_task2_images.tar.gz
+  mv train_task2_images crops
+  mv train_task2_labels.json annotations/
+
+  # Remove unnecessary files
+  rm train_images.tar.gz
+  ```
+
+- Step2: Generate `train_labels.json` and `val_label.json` (optional). Since the test annotations are not publicly available, you may specify `--val-ratio` to split the dataset. E.g., if val-ratio is 0.2, then 20% of the data are left out as the validation set in this example.
+
+  ```bash
+  # Annotations of ArT test split is not publicly available, split a validation set by adding --val-ratio 0.2
+  python tools/dataset_converters/textrecog/art_converter.py PATH/TO/art
+  ```
+
+- After running the above codes, the directory structure should be as follows:
+
+  ```text
+  │── art
+  │   ├── crops
+  │   ├── train_labels.json
+  │   └── val_label.json (optional)
+  ```
diff --git a/mmocr-dev-1.x/docs/en/user_guides/dataset_prepare.md b/mmocr-dev-1.x/docs/en/user_guides/dataset_prepare.md
new file mode 100644
index 0000000000000000000000000000000000000000..02c3ac0f914264754539918554e3708d35e05ace
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/dataset_prepare.md
@@ -0,0 +1,153 @@
+# Dataset Preparation
+
+## Introduction
+
+After decades of development, the OCR community has produced a series of related datasets that often provide annotations of text in a variety of styles, making it necessary for users to convert these datasets to the required format when using them. MMOCR supports dozens of commonly used text-related datasets and provides a [data preparation script](./data_prepare/dataset_preparer.md) to help users prepare the datasets with only one command.
+
+In this section, we will introduce a typical process of preparing a dataset for MMOCR:
+
+1. [Download datasets and convert its format to the suggested one](#downloading-datasets-and-converting-format)
+2. [Modify the config file](#dataset-configuration)
+
+However, the first step is not necessary if you already have a dataset in the format that MMOCR supports. You can read [Dataset Classes](../basic_concepts/datasets.md#dataset-classes-and-annotation-formats) for more details.
+
+## Downloading Datasets and Converting Format
+
+As an example of the data preparation steps, you can use the following command to prepare the ICDAR 2015 dataset for text detection task.
+
+```shell
+python tools/dataset_converters/prepare_dataset.py icdar2015 --task textdet
+```
+
+Then, the dataset has been downloaded and converted to MMOCR format, and the file directory structure is as follows:
+
+```text
+data/icdar2015
+├── textdet_imgs
+│   ├── test
+│   └── train
+├── textdet_test.json
+└── textdet_train.json
+```
+
+Once your dataset has been prepared, you can use the [browse_dataset.py](./useful_tools.md#dataset-visualization-tool) to visualize the dataset and check if the annotations are correct.
+
+```bash
+python tools/analysis_tools/browse_dataset.py configs/textdet/_base_/datasets/icdar2015.py
+```
+
+## Dataset Configuration
+
+### Single Dataset Training
+
+When training or evaluating a model on new datasets, we need to write the dataset config where the image path, annotation path, and image prefix are set. The path `configs/xxx/_base_/datasets/` is pre-configured with the commonly used datasets in MMOCR (if you use `prepare_dataset.py` to prepare dataset, this config will be generated automatically), here we take the ICDAR 2015 dataset as an example (see `configs/textdet/_base_/datasets/icdar2015.py`).
+
+```Python
+icdar2015_textdet_data_root = 'data/icdar2015' # dataset root path
+
+# Train set config
+icdar2015_textdet_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,               # dataset root path
+    ann_file='textdet_train.json',                       # name of annotation
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),  # filtering empty images
+    pipeline=None)
+# Test set config
+icdar2015_textdet_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_test.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+After configuring the dataset, we can import it in the corresponding model configs. For example, to train the "DBNet_R18" model on the ICDAR 2015 dataset.
+
+```Python
+_base_ = [
+    '_base_dbnet_r18_fpnc.py',
+    '../_base_/datasets/icdar2015.py',  # import the dataset config
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+icdar2015_textdet_train = _base_.icdar2015_textdet_train            # specify the training set
+icdar2015_textdet_train.pipeline = _base_.train_pipeline   # specify the training pipeline
+icdar2015_textdet_test = _base_.icdar2015_textdet_test              # specify the testing set
+icdar2015_textdet_test.pipeline = _base_.test_pipeline     # specify the testing pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)    # specify the dataset in train_dataloader
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)    # specify the dataset in val_dataloader
+
+test_dataloader = val_dataloader
+```
+
+### Multi-dataset Training
+
+In addition, [`ConcatDataset`](mmocr.datasets.ConcatDataset) enables users to train or test the model on a combination of multiple datasets. You just need to set the dataset type in the dataloader to `ConcatDataset` in the configuration file and specify the corresponding list of datasets.
+
+```Python
+train_list = [ic11, ic13, ic15]
+train_dataloader = dict(
+    dataset=dict(
+        type='ConcatDataset', datasets=train_list, pipeline=train_pipeline))
+```
+
+For example, the following configuration uses the MJSynth dataset for training and 6 academic datasets (CUTE80, IIIT5K, SVT, SVTP, ICDAR2013, ICDAR2015) for testing.
+
+```Python
+_base_ = [ # Import all dataset configurations you want to use
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adadelta_5e.py',
+    '_base_crnn_mini-vgg.py',
+]
+
+# List of training datasets
+train_list = [_base_.mjsynth_textrecog_train]
+# List of testing datasets
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test, _base_.svt_textrecog_test,
+    _base_.svtp_textrecog_test, _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+# Use ConcatDataset to combine the datasets in the list
+train_dataset = dict(
+       type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+       type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=192 * 4,
+    num_workers=32,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+```
diff --git a/mmocr-dev-1.x/docs/en/user_guides/inference.md b/mmocr-dev-1.x/docs/en/user_guides/inference.md
new file mode 100644
index 0000000000000000000000000000000000000000..0687a327320017b9a4e268c8947644aa95aa4ed5
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/inference.md
@@ -0,0 +1,538 @@
+# Inference
+
+In OpenMMLab, all the inference operations are unified into a new interface - `Inferencer`. `Inferencer` is designed to expose a neat and simple API to users, and shares very similar interface across different OpenMMLab libraries.
+
+In MMOCR, Inferencers are constructed in different levels of task abstraction.
+
+- Standard Inferencer: Following OpenMMLab's convention, each fundamental task in MMOCR has a standard Inferencer, namely `TextDetInferencer` (text detection), `TextRecInferencer` (text recognition), `TextSpottingInferencer` (end-to-end OCR), and `KIEInferencer` (key information extraction). They are designed to perform inference on a single task, and can be chained together to perform inference on a series of tasks. They also share very similar interface, have standard input/output protocol, and overall follow the OpenMMLab design.
+- **MMOCRInferencer**: We also provide `MMOCRInferencer`, a convenient inference interface only designed for MMOCR. It encapsulates and chains all the Inferencers in MMOCR, so users can use this Inferencer to perform a series of tasks on an image and directly get the final result in an end-to-end manner. *However, it has a relatively different interface from other standard Inferencers, and some of standard Inferencer functionalities might be sacrificed for the sake of simplicity.*
+
+For new users, we recommend using **MMOCRInferencer** to test out different combinations of models.
+
+If you are a developer and wish to integrate the models into your own project, we recommend using **standard Inferencers**, as they are more flexible and standardized, equipped with full functionalities.
+
+## Basic Usage
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+As of now, `MMOCRInferencer` can perform inference on the following tasks:
+
+- Text detection
+- Text recognition
+- OCR (text detection + text recognition)
+- Key information extraction (text detection + text recognition + key information extraction)
+- *OCR (text spotting)* (coming soon)
+
+For convenience, `MMOCRInferencer` provides both Python and command line interfaces. For example, if you want to perform OCR inference on `demo/demo_text_ocr.jpg` with `DBNet` as the text detection model and `CRNN` as the text recognition model, you can simply run the following command:
+
+::::{tabs}
+
+:::{code-tab} python
+>>> from mmocr.apis import MMOCRInferencer
+>>> # Load models into memory
+>>> ocr = MMOCRInferencer(det='DBNet', rec='SAR')
+>>> # Perform inference
+>>> ocr('demo/demo_text_ocr.jpg', show=True)
+:::
+
+:::{code-tab} bash
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec SAR --show
+:::
+::::
+
+The resulting OCR output will be displayed in a new window:
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/220563262-e9c1ab52-9b96-4d9c-bcb6-f55ff0b9e1be.png" height="250"/>
+</div>
+
+```{note}
+If you are running MMOCR on a server without GUI or via SSH tunnel with X11 forwarding disabled, the `show` option will not work. However, you can still save visualizations to files by setting `out_dir` and `save_vis=True` arguments. Read [Dumping Results](#dumping-results) for details.
+```
+
+Depending on the initialization arguments, `MMOCRInferencer` can run in different modes. For example, it can run in KIE mode if it is initialized with `det`, `rec` and `kie` specified.
+
+::::{tabs}
+
+:::{code-tab} python
+>>> kie = MMOCRInferencer(det='DBNet', rec='SAR', kie='SDMGR')
+>>> kie('demo/demo_kie.jpeg', show=True)
+:::
+
+:::{code-tab} bash
+python tools/infer.py demo/demo_kie.jpeg --det DBNet --rec SAR --kie SDMGR --show
+:::
+
+::::
+
+The output image should look like this:
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/220569700-fd4894bc-f65a-405e-95e7-ebd2d614aedd.png" height="250"/>
+</div>
+<br />
+
+You may have found that the Python interface and the command line interface of `MMOCRInferencer` are very similar. The following sections will use the Python interface as an example to introduce the usage of `MMOCRInferencer`. For more information about the command line interface, please refer to [Command Line Interface](#command-line-interface).
+
+````
+
+````{group-tab} Standard Inferencer
+
+In general, all the standard Inferencers across OpenMMLab share a very similar interface. The following example shows how to use `TextDetInferencer` to perform inference on a single image.
+
+```python
+>>> from mmocr.apis import TextDetInferencer
+>>> # Load models into memory
+>>> inferencer = TextDetInferencer(model='DBNet')
+>>> # Inference
+>>> inferencer('demo/demo_text_ocr.jpg', show=True)
+```
+
+The visualization result should look like:
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/221418215-2431d0e9-e16e-4deb-9c52-f8b86801706a.png" height="250"/>
+</div>
+
+````
+
+`````
+
+## Initialization
+
+Each Inferencer must be initialized with a model. You can also choose the inference device during initialization.
+
+### Model Initialization
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+For each task, `MMOCRInferencer` takes two arguments in the form of `xxx` and `xxx_weights` (e.g. `det` and `det_weights`) for initialization, and there are many ways to initialize a model for inference. We will take `det` and `det_weights` as an example to illustrate some typical ways to initialize a model.
+
+- To infer with MMOCR's pre-trained model, passing its name to the argument `det` can work. The weights will be automatically downloaded and loaded from OpenMMLab's model zoo. Check [Weights](../modelzoo.md#weights) for available model names.
+
+  ```python
+  >>> MMOCRInferencer(det='DBNet')
+  ```
+
+- To load custom config and weight, you can pass the path to the config file to `det` and the path to the weight to `det_weights`.
+
+  ```python
+  >>> MMOCRInferencer(det='path/to/dbnet_config.py', det_weights='path/to/dbnet.pth')
+  ```
+
+You may click on the "Standard Inferencer" tab to find more initialization methods.
+
+````
+
+````{group-tab} Standard Inferencer
+
+Every standard `Inferencer` accepts two parameters, `model` and `weights`. (In `MMOCRInferencer`, they are referred to as `xxx` and `xxx_weights`)
+
+- `model` takes either the name of a model, or the path to a config file as input. The name of a model is obtained from the model's metafile ([Example](https://github.com/open-mmlab/mmocr/blob/1.x/configs/textdet/dbnet/metafile.yml)) indexed from [model-index.yml](https://github.com/open-mmlab/mmocr/blob/1.x/model-index.yml). You can find the list of available weights [here](../modelzoo.md#weights).
+
+- `weights` accepts the path to a weight file.
+
+<br />
+
+There are various ways to initialize a model.
+
+- To infer with MMOCR's pre-trained model,  you can pass its name to `model`. The weights will be automatically downloaded and loaded from OpenMMLab's model zoo.
+
+  ```python
+  >>> from mmocr.apis import TextDetInferencer
+  >>> inferencer = TextDetInferencer(model='DBNet')
+  ```
+
+  ```{note}
+  The model type must match the Inferencer type.
+  ```
+
+  You can load another weight by passing its path/url to `weights`.
+
+  ```python
+  >>> inferencer = TextDetInferencer(model='DBNet', weights='path/to/dbnet.pth')
+  ```
+
+- To load custom config and weight, you can pass the path to the config file to `model` and the path to the weight to `weights`.
+
+  ```python
+  >>> inferencer = TextDetInferencer(model='path/to/dbnet_config.py', weights='path/to/dbnet.pth')
+  ```
+
+- By default, [MMEngine](https://github.com/open-mmlab/mmengine/) dumps config to the weight. If you have a weight trained on MMEngine, you can also pass the path to the weight file to `weights` without specifying `model`:
+
+  ```python
+  >>> # It will raise an error if the config file cannot be found in the weight
+  >>> inferencer = TextDetInferencer(weights='path/to/dbnet.pth')
+  ```
+
+- Passing config file to `model` without specifying `weight` will result in a randomly initialized model.
+
+````
+`````
+
+### Device
+
+Each Inferencer instance is bound to a device.
+By default, the best device is automatically decided by [MMEngine](https://github.com/open-mmlab/mmengine/). You can also alter the device by specifying the `device` argument. For example, you can use the following code to create an Inferencer on GPU 1.
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+```python
+>>> inferencer = MMOCRInferencer(det='DBNet', device='cuda:1')
+```
+
+````
+
+````{group-tab} Standard Inferencer
+
+```python
+>>> inferencer = TextDetInferencer(model='DBNet', device='cuda:1')
+```
+
+````
+
+`````
+
+To create an Inferencer on CPU:
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+```python
+>>> inferencer = MMOCRInferencer(det='DBNet', device='cpu')
+```
+
+````
+
+````{group-tab} Standard Inferencer
+
+```python
+>>> inferencer = TextDetInferencer(model='DBNet', device='cpu')
+```
+
+````
+
+`````
+
+Refer to [torch.device](torch.device) for all the supported forms.
+
+## Inference
+
+Once the Inferencer is initialized, you can directly pass in the raw data to be inferred and get the inference results from return values.
+
+### Input
+
+`````{tabs}
+
+````{tab} MMOCRInferencer / TextDetInferencer / TextRecInferencer / TextSpottingInferencer
+
+Input can be either of these types:
+
+- str: Path/URL to the image.
+
+  ```python
+  >>> inferencer('demo/demo_text_ocr.jpg')
+  ```
+
+- array: Image in numpy array. It should be in BGR order.
+
+  ```python
+  >>> import mmcv
+  >>> array = mmcv.imread('demo/demo_text_ocr.jpg')
+  >>> inferencer(array)
+  ```
+
+- list: A list of basic types above. Each element in the list will be processed separately.
+
+  ```python
+  >>> inferencer(['img_1.jpg', 'img_2.jpg])
+  >>> # You can even mix the types
+  >>> inferencer(['img_1.jpg', array])
+  ```
+
+- str: Path to the directory. All images in the directory will be processed.
+
+  ```python
+  >>> inferencer('tests/data/det_toy_dataset/imgs/test/')
+  ```
+
+````
+
+````{tab} KIEInferencer
+
+Input can be a dict or list[dict], where each dictionary contains
+following keys:
+
+- `img` (str or ndarray): Path to the image or the image itself. If KIE Inferencer is used in no-visual mode, this key is not required.
+If it's an numpy array, it should be in BGR order.
+- `img_shape` (tuple(int, int)): Image shape in (H, W). Only required when KIE Inferencer is used in no-visual mode and no `img` is provided.
+- `instances` (list[dict]): A list of instances.
+
+Each `instance` looks like the following:
+
+```python
+{
+    # A nested list of 4 numbers representing the bounding box of
+    # the instance, in (x1, y1, x2, y2) order.
+    "bbox": np.array([[x1, y1, x2, y2], [x1, y1, x2, y2], ...],
+                    dtype=np.int32),
+
+    # List of texts.
+    "texts": ['text1', 'text2', ...],
+}
+```
+
+````
+`````
+
+### Output
+
+By default, each `Inferencer` returns the prediction results in a dictionary format.
+
+- `visualization` contains the visualized predictions. But it's an empty list by default unless `return_vis=True`.
+
+- `predictions` contains the predictions results in a json-serializable format. As presented below, the contents are slightly different depending on the task type.
+
+  `````{tabs}
+
+  :::{group-tab} MMOCRInferencer
+
+  ```python
+  {
+      'predictions' : [
+        # Each instance corresponds to an input image
+        {
+          'det_polygons': [...],  # 2d list of length (N,), format: [x1, y1, x2, y2, ...]
+          'det_scores': [...],  # float list of length (N,)
+          'det_bboxes': [...],   # 2d list of shape (N, 4), format: [min_x, min_y, max_x, max_y]
+          'rec_texts': [...],  # str list of length (N,)
+          'rec_scores': [...],  # float list of length (N,)
+          'kie_labels': [...],  # node labels, length (N, )
+          'kie_scores': [...],  # node scores, length (N, )
+          'kie_edge_scores': [...],  # edge scores, shape (N, N)
+          'kie_edge_labels': [...]  # edge labels, shape (N, N)
+        },
+        ...
+      ],
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  ```
+
+  :::
+
+  :::{group-tab} Standard Inferencer
+
+  ````{tabs}
+  ```{code-tab} python TextDetInferencer
+
+  {
+      'predictions' : [
+        # Each instance corresponds to an input image
+        {
+          'polygons': [...],  # 2d list of len (N,) in the format of [x1, y1, x2, y2, ...]
+          'bboxes': [...],  # 2d list of shape (N, 4), in the format of [min_x, min_y, max_x, max_y]
+          'scores': [...]  # list of float, len (N, )
+        },
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  ```
+
+  ```{code-tab} python TextRecInferencer
+  {
+      'predictions' : [
+        # Each instance corresponds to an input image
+        {
+          'text': '...',  # a string
+          'scores': 0.1,  # a float
+        },
+        ...
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  ```
+
+  ```{code-tab} python TextSpottingInferencer
+  {
+      'predictions' : [
+        # Each instance corresponds to an input image
+        {
+          'polygons': [...],  # 2d list of len (N,) in the format of [x1, y1, x2, y2, ...]
+          'bboxes': [...],  # 2d list of shape (N, 4), in the format of [min_x, min_y, max_x, max_y]
+          'scores': [...]  # list of float, len (N, )
+          'texts': ['...',]  # list of texts, len (N, )
+        },
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  ```
+
+  ```{code-tab} python KIEInferencer
+  {
+      'predictions' : [
+        # Each instance corresponds to an input image
+        {
+          'labels': [...],  # node label, len (N,)
+          'scores': [...],  # node scores, len (N, )
+          'edge_scores': [...],  # edge scores, shape (N, N)
+          'edge_labels': [...],  # edge labels, shape (N, N)
+        },
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  ```
+  ````
+
+  :::
+
+  `````
+
+If you wish to get the raw outputs from the model, you can set `return_datasamples` to `True` to get the original [DataSample](structures.md), which will be stored in `predictions`.
+
+### Dumping Results
+
+Apart from obtaining predictions from the return value, you can also export the predictions/visualizations to files by setting `out_dir` and `save_pred`/`save_vis` arguments.
+
+```python
+>>> inferencer('img_1.jpg', out_dir='outputs/', save_pred=True, save_vis=True)
+```
+
+Results in the directory structure like:
+
+```text
+outputs
+├── preds
+│   └── img_1.json
+└── vis
+    └── img_1.jpg
+```
+
+The filename of each file is the same as the corresponding input image filename. If the input image is an array, the filename will be a number starting from 0.
+
+### Batch Inference
+
+You can customize the batch size by setting `batch_size`. The default batch size is 1.
+
+## API
+
+Here are extensive lists of parameters that you can use.
+
+````{tabs}
+
+```{group-tab} MMOCRInferencer
+
+**MMOCRInferencer.\_\_init\_\_():**
+
+| Arguments     | Type                                                 | Default | Description                                                                                                                                                                      |
+| ------------- | ---------------------------------------------------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `det`         | str or [Weights](../modelzoo.html#weights), optional | None    | Pretrained text detection algorithm. It's the path to the config file or the model name defined in metafile.                                                                     |
+| `det_weights` | str, optional                                        | None    | Path to the custom checkpoint file of the selected det model. If it is not specified and "det" is a model name of metafile, the weights will be loaded from metafile.            |
+| `rec`         | str or [Weights](../modelzoo.html#weights), optional | None    | Pretrained text recognition algorithm. It’s the path to the config file or the model name defined in metafile.                                                                   |
+| `rec_weights` | str, optional                                        | None    | Path to the custom checkpoint file of the selected rec model. If it is not specified and “rec” is a model name of metafile, the weights will be loaded from metafile.            |
+| `kie` \[1\]   | str or [Weights](../modelzoo.html#weights), optional | None    | Pretrained key information extraction algorithm. It’s the path to the config file or the model name defined in metafile.                                                         |
+| `kie_weights` | str, optional                                        | None    | Path to the custom checkpoint file of the selected kie model. If it is not specified and “kie” is a model name of metafile, the weights will be loaded from metafile.            |
+| `device`      | str, optional                                        | None    | Device used for inference, accepting all allowed strings by `torch.device`. E.g., 'cuda:0' or 'cpu'. If None, the available device will be automatically used. Defaults to None. |
+
+\[1\]: `kie` is only effective when both text detection and recognition models are specified.
+
+**MMOCRInferencer.\_\_call\_\_()**
+
+| Arguments            | Type                    | Default      | Description                                                                                      |
+| -------------------- | ----------------------- | ------------ | ------------------------------------------------------------------------------------------------ |
+| `inputs`             | str/list/tuple/np.array | **required** | It can be a path to an image/a folder, an np array or a list/tuple (with img paths or np arrays) |
+| `return_datasamples` | bool                    | False        | Whether to return results as DataSamples. If False, the results will be packed into a dict.      |
+| `batch_size`         | int                     | 1            | Inference batch size.                                                                            |
+| `det_batch_size`     | int, optional           | None         | Inference batch size for text detection model. Overwrite batch_size if it is not None.           |
+| `rec_batch_size`     | int, optional           | None         | Inference batch size for text recognition model. Overwrite batch_size if it is not None.         |
+| `kie_batch_size`     | int, optional           | None         | Inference batch size for KIE model. Overwrite batch_size if it is not None.                      |
+| `return_vis`         | bool                    | False        | Whether to return the visualization result.                                                      |
+| `print_result`       | bool                    | False        | Whether to print the inference result to the console.                                            |
+| `show`               | bool                    | False        | Whether to display the visualization results in a popup window.                                  |
+| `wait_time`          | float                   | 0            | The interval of show(s).                                                                         |
+| `out_dir`            | str                     | `results/`   | Output directory of results.                                                                     |
+| `save_vis`           | bool                    | False        | Whether to save the visualization results to `out_dir`.                                          |
+| `save_pred`          | bool                    | False        | Whether to save the inference results to `out_dir`.                                              |
+
+```
+
+```{group-tab} Standard Inferencer
+
+**Inferencer.\_\_init\_\_():**
+
+| Arguments | Type                                                 | Default | Description                                                                                                                                                                      |
+| --------- | ---------------------------------------------------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `model`   | str or [Weights](../modelzoo.html#weights), optional | None    | Path to the config file or the model name defined in metafile.                                                                                                                   |
+| `weights` | str, optional                                        | None    | Path to the custom checkpoint file of the selected det model. If it is not specified and "det" is a model name of metafile, the weights will be loaded from metafile.            |
+| `device`  | str, optional                                        | None    | Device used for inference, accepting all allowed strings by `torch.device`. E.g., 'cuda:0' or 'cpu'. If None, the available device will be automatically used. Defaults to None. |
+
+**Inferencer.\_\_call\_\_()**
+
+| Arguments            | Type                    | Default      | Description                                                                                                      |
+| -------------------- | ----------------------- | ------------ | ---------------------------------------------------------------------------------------------------------------- |
+| `inputs`             | str/list/tuple/np.array | **required** | It can be a path to an image/a folder, an np array or a list/tuple (with img paths or np arrays)                 |
+| `return_datasamples` | bool                    | False        | Whether to return results as DataSamples. If False, the results will be packed into a dict.                      |
+| `batch_size`         | int                     | 1            | Inference batch size.                                                                                            |
+| `progress_bar`       | bool                    | True         | Whether to show a progress bar.                                                                                  |
+| `return_vis`         | bool                    | False        | Whether to return the visualization result.                                                                      |
+| `print_result`       | bool                    | False        | Whether to print the inference result to the console.                                                            |
+| `show`               | bool                    | False        | Whether to display the visualization results in a popup window.                                                  |
+| `wait_time`          | float                   | 0            | The interval of show(s).                                                                                         |
+| `draw_pred`          | bool                    | True         | Whether to draw predicted bounding boxes. *Only applicable on `TextDetInferencer` and `TextSpottingInferencer`.* |
+| `out_dir`            | str                     | `results/`   | Output directory of results.                                                                                     |
+| `save_vis`           | bool                    | False        | Whether to save the visualization results to `out_dir`.                                                          |
+| `save_pred`          | bool                    | False        | Whether to save the inference results to `out_dir`.                                                              |
+
+```
+````
+
+## Command Line Interface
+
+```{note}
+This section is only applicable to `MMOCRInferencer`.
+```
+
+You can use `tools/infer.py` to perform inference through `MMOCRInferencer`.
+Its general usage is as follows:
+
+```bash
+python tools/infer.py INPUT_PATH [--det DET] [--det-weights ...] ...
+```
+
+where `INPUT_PATH` is a required field, which should be a path to an image or a folder. Command-line parameters follow the mapping relationship with the Python interface parameters as follows:
+
+- To convert the Python interface parameters to the command line ones, you need to add two `--` in front of the Python interface parameters, and replace the underscore `_` with the hyphen `-`. For example, `out_dir` becomes `--out-dir`.
+- For boolean type parameters, putting the parameter in the command is equivalent to specifying it as True. For example, `--show` will specify the `show` parameter as True.
+
+In addition, the command line will not display the inference result by default. You can use the `--print-result` parameter to view the inference result.
+
+Here is an example:
+
+```bash
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec SAR --show --print-result
+```
+
+Running this command will give the following result:
+
+```bash
+{'predictions': [{'rec_texts': ['CBank', 'Docbcba', 'GROUP', 'MAUN', 'CROBINSONS', 'AOCOC', '916M3', 'BOO9', 'Oven', 'BRANDS', 'ARETAIL', '14', '70<UKN>S', 'ROUND', 'SALE', 'YEAR', 'ALLY', 'SALE', 'SALE'],
+'rec_scores': [0.9753464579582214, ...], 'det_polygons': [[551.9930285844646, 411.9138765335083, 553.6153911653112,
+383.53195309638977, 620.2410061195247, 387.33785033226013, 618.6186435386782, 415.71977376937866], ...], 'det_scores': [0.8230461478233337, ...]}]}
+```
diff --git a/mmocr-dev-1.x/docs/en/user_guides/train_test.md b/mmocr-dev-1.x/docs/en/user_guides/train_test.md
new file mode 100644
index 0000000000000000000000000000000000000000..0e825217f89017ea04ece03f170eef4f9c53a4bc
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/train_test.md
@@ -0,0 +1,323 @@
+# Training and Testing
+
+To meet diverse requirements, MMOCR supports training and testing models on various devices, including PCs, work stations, computation clusters, etc.
+
+## Single GPU Training and Testing
+
+### Training
+
+`tools/train.py` provides the basic training service. MMOCR recommends using GPUs for model training and testing, but it still enables CPU-Only training and testing. For example, the following commands demonstrate how to train a DBNet model using a single GPU or CPU.
+
+```bash
+# Train the specified MMOCR model by calling tools/train.py
+CUDA_VISIBLE_DEVICES= python tools/train.py ${CONFIG_FILE} [PY_ARGS]
+
+# Training
+# Example 1: Training DBNet with CPU
+CUDA_VISIBLE_DEVICES=-1 python tools/train.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+
+# Example 2: Specify to train DBNet with gpu:0, specify the working directory as dbnet/, and turn on mixed precision (amp) training
+CUDA_VISIBLE_DEVICES=0 python tools/train.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py --work-dir dbnet/ --amp
+```
+
+```{note}
+If multiple GPUs are available, you can specify a certain GPU, e.g. the third one, by setting CUDA_VISIBLE_DEVICES=3.
+```
+
+The following table lists all the arguments supported by `train.py`. Args without the `--` prefix are mandatory, while others are optional.
+
+| ARGS            | Type | Description                                                                 |
+| --------------- | ---- | --------------------------------------------------------------------------- |
+| config          | str  | (required) Path to config.                                                  |
+| --work-dir      | str  | Specify the working directory for the training logs and models checkpoints. |
+| --resume        | bool | Whether to resume training from the latest checkpoint.                      |
+| --amp           | bool | Whether to use automatic mixture precision for training.                    |
+| --auto-scale-lr | bool | Whether to use automatic learning rate scaling.                             |
+| --cfg-options   | str  | Override some settings in the configs. [Example](<>)                        |
+| --launcher      | str  | Option for launcher，\['none', 'pytorch', 'slurm', 'mpi'\].                 |
+| --local_rank    | int  | Rank of local machine，used for distributed training，defaults to 0。       |
+| --tta           | bool | Whether to use test time augmentation.                                      |
+
+### Test
+
+`tools/test.py` provides the basic testing service, which is used in a similar way to the training script. For example, the following command demonstrates test a DBNet model on a single GPU or CPU.
+
+```bash
+# Test a pretrained MMOCR model by calling tools/test.py
+CUDA_VISIBLE_DEVICES= python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} [PY_ARGS]
+
+# Test
+# Example 1: Testing DBNet with CPU
+CUDA_VISIBLE_DEVICES=-1 python tools/test.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth
+
+# Example 2: Testing DBNet on gpu:0
+CUDA_VISIBLE_DEVICES=0 python tools/test.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth
+```
+
+The following table lists all the arguments supported by `test.py`. Args without the `--` prefix are mandatory, while others are optional.
+
+| ARGS          | Type  | Description                                                          |
+| ------------- | ----- | -------------------------------------------------------------------- |
+| config        | str   | (required) Path to config.                                           |
+| checkpoint    | str   | (required) The model to be tested.                                   |
+| --work-dir    | str   | Specify the working directory for the logs.                          |
+| --save-preds  | bool  | Whether to save the predictions to a pkl file.                       |
+| --show        | bool  | Whether to visualize the predictions.                                |
+| --show-dir    | str   | Path to save the visualization results.                              |
+| --wait-time   | float | Interval of visualization (s), defaults to 2.                        |
+| --cfg-options | str   | Override some settings in the configs. [Example](<>)                 |
+| --launcher    | str   | Option for launcher，\['none', 'pytorch', 'slurm', 'mpi'\].          |
+| --local_rank  | int   | Rank of local machine，used for distributed training，defaults to 0. |
+
+## Training and Testing with Multiple GPUs
+
+For large models, distributed training or testing significantly improves the efficiency. For this purpose, MMOCR provides distributed scripts `tools/dist_train.sh` and `tools/dist_test.sh` implemented based on [MMDistributedDataParallel](mmengine.model.wrappers.MMDistributedDataParallel).
+
+```bash
+# Training
+NNODES=${NNODES} NODE_RANK=${NODE_RANK} PORT=${MASTER_PORT} MASTER_ADDR=${MASTER_ADDR} ./tools/dist_train.sh ${CONFIG_FILE} ${GPU_NUM} [PY_ARGS]
+
+# Testing
+NNODES=${NNODES} NODE_RANK=${NODE_RANK} PORT=${MASTER_PORT} MASTER_ADDR=${MASTER_ADDR} ./tools/dist_test.sh ${CONFIG_FILE} ${CHECKPOINT_FILE} ${GPU_NUM} [PY_ARGS]
+```
+
+The following table lists the arguments supported by `dist_*.sh`.
+
+| ARGS            | Type | Description                                                                                   |
+| --------------- | ---- | --------------------------------------------------------------------------------------------- |
+| NNODES          | int  | The number of nodes. Defaults to 1.                                                           |
+| NODE_RANK       | int  | The rank of current node. Defaults to 0.                                                      |
+| PORT            | int  | The master port that will be used by rank 0 node, ranging from 0 to 65535. Defaults to 29500. |
+| MASTER_ADDR     | str  | The address of rank 0 node. Defaults to "127.0.0.1".                                          |
+| CONFIG_FILE     | str  | (required) The path to config.                                                                |
+| CHECKPOINT_FILE | str  | (required，only used in dist_test.sh)The path to checkpoint to be tested.                     |
+| GPU_NUM         | int  | (required) The number of GPUs to be used per node.                                            |
+| \[PY_ARGS\]     | str  | Arguments to be parsed by tools/train.py and tools/test.py.                                   |
+
+These two scripts enable training and testing on **single-machine multi-GPU** or **multi-machine multi-GPU**. See the following example for usage.
+
+### Single-machine Multi-GPU
+
+The following commands demonstrate how to train and test with a specified number of GPUs on a **single machine** with multiple GPUs.
+
+1. **Training**
+
+   Training DBNet using 4 GPUs on a single machine.
+
+   ```bash
+   tools/dist_train.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4
+   ```
+
+2. **Testing**
+
+   Testing DBNet using 4 GPUs on a single machine.
+
+   ```bash
+   tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 4
+   ```
+
+### Launching Multiple Tasks on Single Machine
+
+For a workstation equipped with multiple GPUs, the user can launch multiple tasks simultaneously by specifying the GPU IDs. For example, the following command demonstrates how to test DBNet with GPU `[0, 1, 2, 3]` and train CRNN on GPU `[4, 5, 6, 7]`.
+
+```bash
+# Specify gpu:0,1,2,3 for testing and assign port number 29500
+CUDA_VISIBLE_DEVICES=0,1,2,3 PORT=29500 ./tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 4
+
+# Specify gpu:4,5,6,7 for training and assign port number 29501
+CUDA_VISIBLE_DEVICES=4,5,6,7 PORT=29501 ./tools/dist_train.sh configs/textrecog/crnn/crnn_academic_dataset.py 4
+```
+
+```{note}
+`dist_train.sh` sets `MASTER_PORT` to `29500` by default. When other processes already occupy this port, the program will get a runtime error `RuntimeError: Address already in use`. In this case, you need to set `MASTER_PORT` to another free port number in the range of `(0~65535)`.
+```
+
+### Multi-machine Multi-GPU Training and Testing
+
+You can launch a task on multiple machines connected to the same network. MMOCR relies on `torch.distributed` package for distributed training. Find more information at PyTorch’s [launch utility](https://pytorch.org/docs/stable/distributed.html#launch-utility).
+
+1. **Training**
+
+   The following command demonstrates how to train DBNet on two machines with a total of 4 GPUs.
+
+   ```bash
+   # Say that you want to launch the training job on two machines
+   # On the first machine:
+   NNODES=2 NODE_RANK=0 PORT=29500 MASTER_ADDR=10.140.0.169 tools/dist_train.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 2
+   # On the second machine:
+   NNODES=2 NODE_RANK=1 PORT=29501 MASTER_ADDR=10.140.0.169 tools/dist_train.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 2
+   ```
+
+2. **Testing**
+
+   The following command demonstrates how to test DBNet on two machines with a total of 4 GPUs.
+
+   ```bash
+   # Say that you want to launch the testing job on two machines
+   # On the first machine:
+   NNODES=2 NODE_RANK=0 PORT=29500 MASTER_ADDR=10.140.0.169 tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 2
+   # On the second machine:
+   NNODES=2 NODE_RANK=1 PORT=29501 MASTER_ADDR=10.140.0.169 tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 2
+   ```
+
+   ```{note}
+   The speed of the network could be the bottleneck of training.
+   ```
+
+## Training and Testing with Slurm Cluster
+
+If you run MMOCR on a cluster managed with [Slurm](https://slurm.schedmd.com/), you can use the script `tools/slurm_train.sh` and `tools/slurm_test.sh`.
+
+```bash
+# tools/slurm_train.sh provides scripts for submitting training tasks on clusters managed by the slurm
+GPUS=${GPUS} GPUS_PER_NODE=${GPUS_PER_NODE} CPUS_PER_TASK=${CPUS_PER_TASK} SRUN_ARGS=${SRUN_ARGS} ./tools/slurm_train.sh ${PARTITION} ${JOB_NAME} ${CONFIG_FILE} ${WORK_DIR} [PY_ARGS]
+
+# tools/slurm_test.sh provides scripts for submitting testing tasks on clusters managed by the slurm
+GPUS=${GPUS} GPUS_PER_NODE=${GPUS_PER_NODE} CPUS_PER_TASK=${CPUS_PER_TASK} SRUN_ARGS=${SRUN_ARGS} ./tools/slurm_test.sh ${PARTITION} ${JOB_NAME} ${CONFIG_FILE} ${CHECKPOINT_FILE} ${WORK_DIR} [PY_ARGS]
+```
+
+| ARGS            | Type | Description                                                                                                 |
+| --------------- | ---- | ----------------------------------------------------------------------------------------------------------- |
+| GPUS            | int  | The number of GPUs to be used by this task. Defaults to 8.                                                  |
+| GPUS_PER_NODE   | int  | The number of GPUs to be allocated per node. Defaults to 8.                                                 |
+| CPUS_PER_TASK   | int  | The number of CPUs to be allocated per task. Defaults to 5.                                                 |
+| SRUN_ARGS       | str  | Arguments to be parsed by srun. Available options can be found [here](https://slurm.schedmd.com/srun.html). |
+| PARTITION       | str  | (required) Specify the partition on cluster.                                                                |
+| JOB_NAME        | str  | (required) Name of the submitted job.                                                                       |
+| WORK_DIR        | str  | (required) Specify the working directory for saving the logs and checkpoints.                               |
+| CHECKPOINT_FILE | str  | (required，only used in slurm_test.sh)Path to the checkpoint to be tested.                                  |
+| PY_ARGS         | str  | Arguments to be parsed by `tools/train.py` and `tools/test.py`.                                             |
+
+These scripts enable training and testing on slurm clusters, see the following examples.
+
+1. Training
+
+   Here is an example of using 1 GPU to train a DBNet model on the `dev` partition.
+
+   ```bash
+   # Example: Request 1 GPU resource on dev partition for DBNet training task
+   GPUS=1 GPUS_PER_NODE=1 CPUS_PER_TASK=5 tools/slurm_train.sh dev db_r50 configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py work_dir
+   ```
+
+2. Testing
+
+   Similarly, the following example requests 1 GPU for testing.
+
+   ```bash
+   # Example: Request 1 GPU resource on dev partition for DBNet testing task
+   GPUS=1 GPUS_PER_NODE=1 CPUS_PER_TASK=5 tools/slurm_test.sh dev db_r50 configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth work_dir
+   ```
+
+## Advanced Tips
+
+### Resume Training from a Checkpoint
+
+`tools/train.py` allows users to resume training from a checkpoint by specifying the `--resume` parameter, where it will automatically resume training from the latest saved checkpoint.
+
+```bash
+# Example: Resuming training from the latest checkpoint
+python tools/train.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4 --resume
+```
+
+By default, the program will automatically resume training from the last successfully saved checkpoint in the last training session, i.e. `latest.pth`. However,
+
+```python
+# Example: Set the path of the checkpoint you want to load in the configuration file
+load_from = 'work_dir/dbnet/models/epoch_10000.pth'
+```
+
+### Mixed Precision Training
+
+Mixed precision training offers significant computational speedup by performing operations in half-precision format, while storing minimal information in single-precision to retain as much information as possible in critical parts of the network. In MMOCR, the users can enable the automatic mixed precision training by simply add `--amp`.
+
+```bash
+# Example: Using automatic mixed precision training
+python tools/train.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4 --amp
+```
+
+The following table shows the support of each algorithm in MMOCR for automatic mixed precision training.
+
+|               | Whether support AMP |               Description               |
+| ------------- | :-----------------: | :-------------------------------------: |
+|               |   Text Detection    |                                         |
+| DBNet         |          Y          |                                         |
+| DBNetpp       |          Y          |                                         |
+| DRRG          |          N          | roi_align_rotated does not support fp16 |
+| FCENet        |          N          |      BCELoss does not support fp16      |
+| Mask R-CNN    |          Y          |                                         |
+| PANet         |          Y          |                                         |
+| PSENet        |          Y          |                                         |
+| TextSnake     |          N          |                                         |
+|               |  Text Recognition   |                                         |
+| ABINet        |          Y          |                                         |
+| CRNN          |          Y          |                                         |
+| MASTER        |          Y          |                                         |
+| NRTR          |          Y          |                                         |
+| RobustScanner |          Y          |                                         |
+| SAR           |          Y          |                                         |
+| SATRN         |          Y          |                                         |
+
+### Automatic Learning Rate Scaling
+
+MMOCR sets default initial learning rates for each model in the configuration file. However, these initial learning rates may not be applicable when the user uses a different `batch_size` than our preset `base_batch_size`. Therefore, we provide a tool to automatically scale the learning rate, which can be called by adding the `--auto-scale-lr`.
+
+```bash
+# Example: Using automatic learning rate scaling
+python tools/train.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4 --auto-scale-lr
+```
+
+### Visualize the Predictions
+
+`tools/test.py` provides the visualization interface to facilitate the qualitative analysis of the OCR models.
+
+<div align="center">
+
+![Detection](../../../demo/resources/det_vis.png)
+
+(Green boxes are GTs, while red boxes are predictions)
+
+</div>
+
+<div align="center">
+
+![Recognition](../../../demo/resources/rec_vis.png)
+
+(Green font is the GT, red font is the prediction)
+
+</div>
+
+<div align="center">
+
+![KIE](../../../demo/resources/kie_vis.png)
+
+(From left to right: original image, text detection and recognition result, text classification result, relationship)
+
+</div>
+
+```bash
+# Example 1: Show the visualization results per 2 seconds
+python tools/test.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth --show --wait-time 2
+
+# Example 2: For systems that do not support graphical interfaces (such as computing clusters, etc.), the visualization results can be dumped in the specified path
+python tools/test.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth --show-dir ./vis_results
+```
+
+The visualization-related parameters in `tools/test.py` are described as follows.
+
+| ARGS        | Type  | Description                                   |
+| ----------- | ----- | --------------------------------------------- |
+| --show      | bool  | Whether to show the visualization results.    |
+| --show-dir  | str   | Path to save the visualization results.       |
+| --wait-time | float | Interval of visualization (s), defaults to 2. |
+
+### Test Time Augmentation
+
+Test time augmentation (TTA) is a technique that is used to improve the performance of a model by performing data augmentation on the input image at test time. It is a simple yet effective method to improve the performance of a model. In MMOCR, we support TTA in the following ways:
+
+```{note}
+TTA is only supported for text recognition models.
+```
+
+```bash
+python tools/test.py configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py checkpoints/crnn_mini-vgg_5e_mj.pth --tta
+```
diff --git a/mmocr-dev-1.x/docs/en/user_guides/useful_tools.md b/mmocr-dev-1.x/docs/en/user_guides/useful_tools.md
new file mode 100644
index 0000000000000000000000000000000000000000..9828198f62fcd818946cfa19459b0d841d7cd4e4
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/useful_tools.md
@@ -0,0 +1,241 @@
+# Useful Tools
+
+## Visualization Tools
+
+### Dataset Visualization Tool
+
+MMOCR provides a dataset visualization tool `tools/visualizations/browse_datasets.py` to help users troubleshoot possible dataset-related problems. You just need to specify the path to the training config (usually stored in `configs/textdet/dbnet/xxx.py`) or the dataset config (usually stored in `configs/textdet/_base_/datasets/xxx.py`), and the tool will automatically plots the transformed (or original) images and labels.
+
+#### Usage
+
+```bash
+python tools/visualizations/browse_dataset.py \
+    ${CONFIG_FILE} \
+    [-o, --output-dir ${OUTPUT_DIR}] \
+    [-p, --phase ${DATASET_PHASE}] \
+    [-m, --mode ${DISPLAY_MODE}] \
+    [-t, --task ${DATASET_TASK}] \
+    [-n, --show-number ${NUMBER_IMAGES_DISPLAY}] \
+    [-i, --show-interval ${SHOW_INTERRVAL}] \
+    [--cfg-options ${CFG_OPTIONS}]
+```
+
+| ARGS                | Type                                  | Description                                                                                                                                      |
+| ------------------- | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
+| config              | str                                   | (required) Path to the config.                                                                                                                   |
+| -o, --output-dir    | str                                   | If GUI is not available, specifying an output path to save the visualization results.                                                            |
+| -p, --phase         | str                                   | Phase of dataset to visualize. Use "train", "test" or "val" if you just want to visualize the default split. It's also possible to be a dataset variable name, which might be useful when a dataset split has multiple variants in the config. |
+| -m, --mode          | `original`, `transformed`, `pipeline` | Display mode: display original pictures or transformed pictures or comparison pictures.`original` only visualizes the original dataset & annotations; `transformed` shows the resulting images processed through all the transforms; `pipeline` shows all the intermediate images. Defaults to "transformed". |
+| -t, --task          | `auto`, `textdet`, `textrecog`        | Specify the task type of the dataset. If `auto`, the task type will be inferred from the config. If the script is unable to infer the task type, you need to specify it manually. Defaults to `auto`. |
+| -n, --show-number   | int                                   | The number of samples to visualized. If not specified, display all images in the dataset.                                                        |
+| -i, --show-interval | float                                 | Interval of visualization (s), defaults to 2.                                                                                                    |
+| --cfg-options       | float                                 | Override configs.[Example](./config.md#command-line-modification)                                                                                |
+
+#### Examples
+
+The following example demonstrates how to use the tool to visualize the training data used by the "DBNet_R50_icdar2015" model.
+
+```Bash
+# Example: Visualizing the training data used by dbnet_r50dcn_v2_fpnc_1200e_icadr2015 model
+python tools/visualizations/browse_dataset.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+```
+
+By default, the visualization mode is "transformed", and you will see the images & annotations being transformed by the pipeline:
+
+<center class="half">
+    <img src="https://user-images.githubusercontent.com/24622904/187611542-01e9aa94-fc12-4756-964b-a0e472522a3a.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611555-3f5ea616-863d-4538-884f-bccbebc2f7e7.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611581-88be3970-fbfe-4f62-8cdf-7a8a7786af29.jpg" width="250"/>
+</center>
+
+If you just want to visualize the original dataset, simply set the mode to "original":
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py -m original
+```
+
+<div align=center><img src="https://user-images.githubusercontent.com/22607038/206646570-382d0f26-908a-4ab4-b1a7-5cc31fa70c5f.jpg" style=" width: auto; height: 40%; "></div>
+
+Or, to visualize the entire pipeline:
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py -m pipeline
+```
+
+<div align=center><img src="https://user-images.githubusercontent.com/22607038/206637571-287640c0-1f55-453f-a2fc-9f9734b9593f.jpg" style=" width: auto; height: 40%; "></div>
+
+In addition, users can also visualize the original images and their corresponding labels of the dataset by specifying the path to the dataset config file, for example:
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textrecog/_base_/datasets/icdar2015.py
+```
+
+Some datasets might have multiple variants. For example, the test split of `icdar2015` textrecog dataset has two variants, which the [base dataset config](/configs/textrecog/_base_/datasets/icdar2015.py) defines as follows:
+
+```python
+icdar2015_textrecog_test = dict(
+    ann_file='textrecog_test.json',
+    # ...
+    )
+
+icdar2015_1811_textrecog_test = dict(
+    ann_file='textrecog_test_1811.json',
+    # ...
+)
+```
+
+In this case, you can specify the variant name to visualize the corresponding dataset:
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textrecog/_base_/datasets/icdar2015.py -p icdar2015_1811_textrecog_test
+```
+
+Based on this tool, users can easily verify if the annotation of a custom dataset is correct.
+
+### Hyper-parameter Scheduler Visualization
+
+This tool aims to help the user to check the hyper-parameter scheduler of the optimizer (without training), which support the "learning rate" or "momentum"
+
+#### Introduce the scheduler visualization tool
+
+```bash
+python tools/visualizations/vis_scheduler.py \
+    ${CONFIG_FILE} \
+    [-p, --parameter ${PARAMETER_NAME}] \
+    [-d, --dataset-size ${DATASET_SIZE}] \
+    [-n, --ngpus ${NUM_GPUs}] \
+    [-s, --save-path ${SAVE_PATH}] \
+    [--title ${TITLE}] \
+    [--style ${STYLE}] \
+    [--window-size ${WINDOW_SIZE}] \
+    [--cfg-options]
+```
+
+**Description of all arguments**：
+
+- `config`: The path of a model config file.
+- **`-p, --parameter`**: The param to visualize its change curve, choose from "lr" and "momentum". Default to use "lr".
+- **`-d, --dataset-size`**: The size of the datasets. If set，`build_dataset` will be skipped and `${DATASET_SIZE}` will be used as the size. Default to use the function `build_dataset`.
+- **`-n, --ngpus`**: The number of GPUs used in training, default to be 1.
+- **`-s, --save-path`**: The learning rate curve plot save path, default not to save.
+- `--title`: Title of figure. If not set, default to be config file name.
+- `--style`: Style of plt. If not set, default to be `whitegrid`.
+- `--window-size`: The shape of the display window. If not specified, it will be set to `12*7`. If used, it must be in the format `'W*H'`.
+- `--cfg-options`: Modifications to the configuration file, refer to [Learn about Configs](../user_guides/config.md).
+
+```{note}
+Loading annotations maybe consume much time, you can directly specify the size of the dataset with `-d, dataset-size` to save time.
+```
+
+#### How to plot the learning rate curve without training
+
+You can use the following command to plot the step learning rate schedule used in the config `configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py`:
+
+```bash
+python tools/visualizations/vis_scheduler.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py -d 100
+```
+
+<div align=center><img src="https://user-images.githubusercontent.com/43344034/232757392-b29b8e3a-77af-451c-8786-d3b4259ab388.png" style=" width: auto; height: 40%; "></div>
+
+## Analysis Tools
+
+### Offline Evaluation Tool
+
+For saved prediction results, we provide an offline evaluation script `tools/analysis_tools/offline_eval.py`. The following example demonstrates how to use this tool to evaluate the output of the "PSENet" model offline.
+
+```Bash
+# When running the test script for the first time, you can save the output of the model by specifying the --save-preds parameter
+python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} --save-preds
+# Example: Testing on PSENet
+python tools/test.py configs/textdet/psenet/psenet_r50_fpnf_600e_icdar2015.py epoch_600.pth --save-preds
+
+# Then, using the saved outputs for offline evaluation
+python tools/analysis_tool/offline_eval.py ${CONFIG_FILE} ${PRED_FILE}
+# Example: Offline evaluation of saved PSENet results
+python tools/analysis_tools/offline_eval.py configs/textdet/psenet/psenet_r50_fpnf_600e_icdar2015.py work_dirs/psenet_r50_fpnf_600e_icdar2015/epoch_600.pth_predictions.pkl
+```
+
+`-save-preds` saves the output to `work_dir/CONFIG_NAME/MODEL_NAME_predictions.pkl` by default
+
+In addition, based on this tool, users can also convert predictions obtained from other libraries into MMOCR-supported formats, then use MMOCR's built-in metrics to evaluate them.
+
+| ARGS          | Type  | Description                                                       |
+| ------------- | ----- | ----------------------------------------------------------------- |
+| config        | str   | (required) Path to the config.                                    |
+| pkl_results   | str   | (required) The saved predictions.                                 |
+| --cfg-options | float | Override configs.[Example](./config.md#command-line-modification) |
+
+### Calculate FLOPs and the Number of Parameters
+
+We provide a method to calculate the FLOPs and the number of parameters, first we install the dependencies using the following command.
+
+```shell
+pip install fvcore
+```
+
+The usage of the script to calculate FLOPs and the number of parameters is as follows.
+
+```shell
+python tools/analysis_tools/get_flops.py ${config} --shape ${IMAGE_SHAPE}
+```
+
+| ARGS    | Type | Description                                                                               |
+| ------- | ---- | ----------------------------------------------------------------------------------------- |
+| config  | str  | (required) Path to the config.                                                            |
+| --shape | int  | Image size to use when calculating FLOPs, such as `--shape 320 320`. Default is `640 640` |
+
+For example, you can run the following command to get FLOPs and the number of parameters of `dbnet_resnet18_fpnc_100k_synthtext.py`:
+
+```shell
+python tools/analysis_tools/get_flops.py configs/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext.py --shape 1024 1024
+```
+
+The output is as follows:
+
+```shell
+input shape is  (1, 3, 1024, 1024)
+| module                    | #parameters or shape | #flops  |
+| :------------------------ | :------------------- | :------ |
+| model                     | 12.341M              | 63.955G |
+| backbone                  | 11.177M              | 38.159G |
+| backbone.conv1            | 9.408K               | 2.466G  |
+| backbone.conv1.weight     | (64, 3, 7, 7)        |         |
+| backbone.bn1              | 0.128K               | 83.886M |
+| backbone.bn1.weight       | (64,)                |         |
+| backbone.bn1.bias         | (64,)                |         |
+| backbone.layer1           | 0.148M               | 9.748G  |
+| backbone.layer1.0         | 73.984K              | 4.874G  |
+| backbone.layer1.1         | 73.984K              | 4.874G  |
+| backbone.layer2           | 0.526M               | 8.642G  |
+| backbone.layer2.0         | 0.23M                | 3.79G   |
+| backbone.layer2.1         | 0.295M               | 4.853G  |
+| backbone.layer3           | 2.1M                 | 8.616G  |
+| backbone.layer3.0         | 0.919M               | 3.774G  |
+| backbone.layer3.1         | 1.181M               | 4.842G  |
+| backbone.layer4           | 8.394M               | 8.603G  |
+| backbone.layer4.0         | 3.673M               | 3.766G  |
+| backbone.layer4.1         | 4.721M               | 4.837G  |
+| neck                      | 0.836M               | 14.887G |
+| neck.lateral_convs        | 0.246M               | 2.013G  |
+| neck.lateral_convs.0.conv | 16.384K              | 1.074G  |
+| neck.lateral_convs.1.conv | 32.768K              | 0.537G  |
+| neck.lateral_convs.2.conv | 65.536K              | 0.268G  |
+| neck.lateral_convs.3.conv | 0.131M               | 0.134G  |
+| neck.smooth_convs         | 0.59M                | 12.835G |
+| neck.smooth_convs.0.conv  | 0.147M               | 9.664G  |
+| neck.smooth_convs.1.conv  | 0.147M               | 2.416G  |
+| neck.smooth_convs.2.conv  | 0.147M               | 0.604G  |
+| neck.smooth_convs.3.conv  | 0.147M               | 0.151G  |
+| det_head                  | 0.329M               | 10.909G |
+| det_head.binarize         | 0.164M               | 10.909G |
+| det_head.binarize.0       | 0.147M               | 9.664G  |
+| det_head.binarize.1       | 0.128K               | 20.972M |
+| det_head.binarize.3       | 16.448K              | 1.074G  |
+| det_head.binarize.4       | 0.128K               | 83.886M |
+| det_head.binarize.6       | 0.257K               | 67.109M |
+| det_head.threshold        | 0.164M               |         |
+| det_head.threshold.0      | 0.147M               |         |
+| det_head.threshold.1      | 0.128K               |         |
+| det_head.threshold.3      | 16.448K              |         |
+| det_head.threshold.4      | 0.128K               |         |
+| det_head.threshold.6      | 0.257K               |         |
+!!!Please be cautious if you use the results in papers. You may need to check if all ops are supported and verify that the flops computation is correct.
+```
diff --git a/mmocr-dev-1.x/docs/en/user_guides/visualization.md b/mmocr-dev-1.x/docs/en/user_guides/visualization.md
new file mode 100644
index 0000000000000000000000000000000000000000..2ce21cf30fb6798f198206fb41aed17fc61afe3d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/user_guides/visualization.md
@@ -0,0 +1,107 @@
+# Visualization
+
+Before reading this tutorial, it is recommended to read MMEngine's {external+mmengine:doc}`MMEngine: Visualization <advanced_tutorials/visualization>` documentation to get a first glimpse of the `Visualizer` definition and usage.
+
+In brief, the [`Visualizer`](mmengine.visualization.Visualizer) is implemented in MMEngine to meet the daily visualization needs, and contains three main functions:
+
+- Implement common drawing APIs, such as [`draw_bboxes`](mmengine.visualization.Visualizer.draw_bboxes) which implements bounding box drawing functions, [`draw_lines`](mmengine.visualization.Visualizer.draw_lines) implements the line drawing function.
+- Support writing visualization results, learning rate curves, loss function curves, and verification accuracy curves to various backends, including local disks and common deep learning training logging tools such as [TensorBoard](https://www.tensorflow.org/tensorboard) and [Wandb](https://wandb.ai/site).
+- Support calling anywhere in the code to visualize or record intermediate states of the model during training or testing, such as feature maps and validation results.
+
+Based on MMEngine's Visualizer, MMOCR comes with a variety of pre-built visualization tools that can be used by the user by simply modifying the following configuration files.
+
+- The `tools/analysis_tools/browse_dataset.py` script provides a dataset visualization function that draws images and corresponding annotations after Data Transforms, as described in [`browse_dataset.py`](useful_tools.md).
+- MMEngine implements `LoggerHook`, which uses `Visualizer` to write the learning rate, loss and evaluation results to the backend set by `Visualizer`. Therefore, by modifying the `Visualizer` backend in the configuration file, for example to ` TensorBoardVISBackend` or `WandbVISBackend`, you can implement logging to common training logging tools such as `TensorBoard` or `WandB`, thus making it easy for users to use these visualization tools to analyze and monitor the training process.
+- The `VisualizerHook` is implemented in MMOCR, which uses the `Visualizer` to visualize or store the prediction results of the validation or prediction phase into the backend set by the `Visualizer`, so by modifying the `Visualizer` backend in the configuration file, for example, to ` TensorBoardVISBackend` or `WandbVISBackend`, you can implement storing the predicted images to `TensorBoard` or `Wandb`.
+
+## Configuration
+
+Thanks to the use of the registration mechanism, in MMOCR we can set the behavior of the `Visualizer` by modifying the configuration file. Usually, we define the default configuration for the visualizer in `task/_base_/default_runtime.py`, see [configuration tutorial](config.md) for details.
+
+```Python
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextxxxLocalVisualizer', # use different visualizers for different tasks
+    vis_backends=vis_backends,
+    name='visualizer')
+```
+
+Based on the above example, we can see that the configuration of `Visualizer` consists of two main parts, namely, the type of `Visualizer` and the visualization backend `vis_backends` it uses.
+
+- For different OCR tasks, various visualizers are pre-configured in MMOCR, including [`TextDetLocalVisualizer`](mmocr.visualization.TextDetLocalVisualizer), [`TextRecogLocalVisualizer`](mmocr.visualization.TextRecogLocalVisualizer), [`TextSpottingLocalVisualizer`](mmocr.visualization.TextSpottingLocalVisualizer) and [`KIELocalVisualizer`](mmocr.visualization.KIELocalVisualizer). These visualizers extend the basic Visulizer API according to the characteristics of their tasks and implement the corresponding tag information interface `add_datasamples`. For example, users can directly use `TextDetLocalVisualizer` to visualize labels or predictions for text detection tasks.
+- MMOCR sets the visualization backend `vis_backend` to the local visualization backend `LocalVisBackend` by default, saving all visualization results and other training information in a local folder.
+
+## Storage
+
+MMOCR uses the local visualization backend [`LocalVisBackend`](mmengine.visualization.LocalVisBackend) by default, and the model loss, learning rate, model evaluation accuracy and visualization The information stored in `VisualizerHook` and `LoggerHook`, including loss, learning rate, evaluation accuracy will be saved to the `{work_dir}/{config_name}/{time}/{vis_data}` folder by default. In addition, MMOCR also supports other common visualization backends, such as `TensorboardVisBackend` and `WandbVisBackend`, and you only need to change the `vis_backends` type in the configuration file to the corresponding visualization backend. For example, you can store data to `TensorBoard` and `Wandb` by simply inserting the following code block into the configuration file.
+
+```Python
+_base_.visualizer.vis_backends = [
+    dict(type='LocalVisBackend'),
+    dict(type='TensorboardVisBackend'),
+    dict(type='WandbVisBackend'),]
+```
+
+## Plot
+
+### Plot the prediction results
+
+MMOCR mainly uses [`VisualizationHook`](mmocr.engine.hooks.VisualizationHook) to plot the prediction results of validation and test, by default `VisualizationHook` is off, and the default configuration is as follows.
+
+```Python
+visualization=dict( # user visualization of validation and test results
+    type='VisualizationHook',
+    enable=False,
+    interval=1,
+    show=False,
+    draw_gt=False,
+    draw_pred=False)
+```
+
+The following table shows the parameters supported by `VisualizationHook`.
+
+| Parameters |                                                  Description                                                  |
+| :--------: | :-----------------------------------------------------------------------------------------------------------: |
+|   enable   |        The VisualizationHook is turned on and off by the enable parameter, which is the default state.        |
+|  interval  | Controls how much iteration to store or display the results of a val or test if VisualizationHook is enabled. |
+|    show    |                           Controls whether to visualize the results of val or test.                           |
+|  draw_gt   |               Whether the results of val or test are drawn with or without labeling information               |
+| draw_pred  |                              whether to draw predictions for val or test results                              |
+
+If you want to enable `VisualizationHook` related functions and configurations during training or testing, you only need to modify the configuration, take `dbnet_resnet18_fpnc_1200e_icdar2015.py` as an example, draw annotations and predictions at the same time, and display the images, the configuration can be modified as follows
+
+```Python
+visualization = _base_.default_hooks.visualization
+visualization.update(
+    dict(enable=True, show=True, draw_gt=True, draw_pred=True))
+```
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/24622904/187426573-8448c827-1336-4416-aebc-e7fccce362cd.png" height="200"/>
+</div>
+
+If you only want to see the predicted result information you can just let `draw_pred=True`
+
+```Python
+visualization = _base_.default_hooks.visualization
+visualization.update(
+    dict(enable=True, show=True, draw_gt=False, draw_pred=True))
+```
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/24622904/187428385-e6a23120-6445-4c55-a265-c550da692087.png" height="300"/>
+</div>
+
+The `test.py` procedure is further simplified by providing the  `--show` and `--show-dir` parameters to visualize the annotation and prediction results during the test without modifying the configuration.
+
+```Shell
+# Show test results
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py dbnet_r18_fpnc_1200e_icdar2015/epoch_400.pth --show
+
+# Specify where to store the prediction results
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py dbnet_r18_fpnc_1200e_icdar2015/epoch_400.pth --show-dir imgs/
+```
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/24622904/187426573-8448c827-1336-4416-aebc-e7fccce362cd.png" height="200"/>
+</div>
diff --git a/mmocr-dev-1.x/docs/en/weight_list.py b/mmocr-dev-1.x/docs/en/weight_list.py
new file mode 100644
index 0000000000000000000000000000000000000000..0d7fee5678c4162cadf7ac7e2670821ec29205e6
--- /dev/null
+++ b/mmocr-dev-1.x/docs/en/weight_list.py
@@ -0,0 +1,115 @@
+import os.path as osp
+
+from mmengine.fileio import load
+from tabulate import tabulate
+
+
+class BaseWeightList:
+    """Class for generating model list in markdown format.
+
+    Args:
+        dataset_list (list[str]): List of dataset names.
+        table_header (list[str]): List of table header.
+        msg (str): Message to be displayed.
+        task_abbr (str): Abbreviation of task name.
+        metric_name (str): Metric name.
+    """
+
+    base_url: str = 'https://github.com/open-mmlab/mmocr/blob/1.x/'
+    table_cfg: dict = dict(
+        tablefmt='pipe', floatfmt='.2f', numalign='right', stralign='center')
+    dataset_list: list
+    table_header: list
+    msg: str
+    task_abbr: str
+    metric_name: str
+
+    def __init__(self):
+        data = (d + f' ({self.metric_name})' for d in self.dataset_list)
+        self.table_header = ['Model', 'README', *data]
+
+    def _get_model_info(self, task_name: str):
+        meta_indexes = load('../../model-index.yml')
+        for meta_path in meta_indexes['Import']:
+            meta_path = osp.join('../../', meta_path)
+            metainfo = load(meta_path)
+            collection2md = {}
+            for item in metainfo['Collections']:
+                url = self.base_url + item['README']
+                collection2md[item['Name']] = f'[link]({url})'
+            for item in metainfo['Models']:
+                if task_name not in item['Config']:
+                    continue
+                name = f'`{item["Name"]}`'
+                if item.get('Alias', None):
+                    if isinstance(item['Alias'], str):
+                        item['Alias'] = [item['Alias']]
+                    aliases = [f'`{alias}`' for alias in item['Alias']]
+                    aliases.append(name)
+                    name = ' / '.join(aliases)
+                readme = collection2md[item['In Collection']]
+                eval_res = self._get_eval_res(item)
+                yield (name, readme, *eval_res)
+
+    def _get_eval_res(self, item):
+        eval_res = {k: '-' for k in self.dataset_list}
+        for res in item['Results']:
+            if res['Dataset'] in self.dataset_list:
+                eval_res[res['Dataset']] = res['Metrics'][self.metric_name]
+        return (eval_res[k] for k in self.dataset_list)
+
+    def gen_model_list(self):
+        content = f'\n{self.msg}\n'
+        content += '```{table}\n:class: model-summary nowrap field-list '
+        content += 'table table-hover\n'
+        content += tabulate(
+            self._get_model_info(self.task_abbr), self.table_header,
+            **self.table_cfg)
+        content += '\n```\n'
+        return content
+
+
+class TextDetWeightList(BaseWeightList):
+
+    dataset_list = ['ICDAR2015', 'CTW1500', 'Totaltext']
+    msg = '### Text Detection'
+    task_abbr = 'textdet'
+    metric_name = 'hmean-iou'
+
+
+class TextRecWeightList(BaseWeightList):
+
+    dataset_list = [
+        'Avg', 'IIIT5K', 'SVT', 'ICDAR2013', 'ICDAR2015', 'SVTP', 'CT80'
+    ]
+    msg = ('### Text Recognition\n'
+           '```{note}\n'
+           'Avg is the average on IIIT5K, SVT, ICDAR2013, ICDAR2015, SVTP,'
+           ' CT80.\n```\n')
+    task_abbr = 'textrecog'
+    metric_name = 'word_acc'
+
+    def _get_eval_res(self, item):
+        eval_res = {k: '-' for k in self.dataset_list}
+        avg = []
+        for res in item['Results']:
+            if res['Dataset'] in self.dataset_list:
+                eval_res[res['Dataset']] = res['Metrics'][self.metric_name]
+                avg.append(res['Metrics'][self.metric_name])
+        eval_res['Avg'] = sum(avg) / len(avg)
+        return (eval_res[k] for k in self.dataset_list)
+
+
+class KIEWeightList(BaseWeightList):
+
+    dataset_list = ['wildreceipt']
+    msg = '### Key Information Extraction'
+    task_abbr = 'kie'
+    metric_name = 'macro_f1'
+
+
+def gen_weight_list():
+    content = TextDetWeightList().gen_model_list()
+    content += TextRecWeightList().gen_model_list()
+    content += KIEWeightList().gen_model_list()
+    return content
diff --git a/mmocr-dev-1.x/docs/zh_cn/Makefile b/mmocr-dev-1.x/docs/zh_cn/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..d4bb2cbb9eddb1bb1b4f366623044af8e4830919
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/Makefile
@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/mmocr-dev-1.x/docs/zh_cn/_static/css/readthedocs.css b/mmocr-dev-1.x/docs/zh_cn/_static/css/readthedocs.css
new file mode 100644
index 0000000000000000000000000000000000000000..c4736f9dc728b2b0a49fd8e10d759c5d58e506d1
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/_static/css/readthedocs.css
@@ -0,0 +1,6 @@
+.header-logo {
+    background-image: url("../images/mmocr.png");
+    background-size: 110px 40px;
+    height: 40px;
+    width: 110px;
+}
diff --git a/mmocr-dev-1.x/docs/zh_cn/_static/images/mmocr.png b/mmocr-dev-1.x/docs/zh_cn/_static/images/mmocr.png
new file mode 100755
index 0000000000000000000000000000000000000000..363e34989e376b23b78ca4c31933542f15ec78ee
Binary files /dev/null and b/mmocr-dev-1.x/docs/zh_cn/_static/images/mmocr.png differ
diff --git a/mmocr-dev-1.x/docs/zh_cn/_static/js/collapsed.js b/mmocr-dev-1.x/docs/zh_cn/_static/js/collapsed.js
new file mode 100644
index 0000000000000000000000000000000000000000..bedebadc0183105fe5c5978fb6e07d4afca2a149
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/_static/js/collapsed.js
@@ -0,0 +1 @@
+var collapsedSections = ['MMOCR 0.x 迁移指南', 'API 文档']
diff --git a/mmocr-dev-1.x/docs/zh_cn/_static/js/table.js b/mmocr-dev-1.x/docs/zh_cn/_static/js/table.js
new file mode 100644
index 0000000000000000000000000000000000000000..8dacf477f33e81bba3a0c0edc11b135f648b1f0a
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/_static/js/table.js
@@ -0,0 +1,31 @@
+$(document).ready(function () {
+    table = $('.model-summary').DataTable({
+        "stateSave": false,
+        "lengthChange": false,
+        "pageLength": 10,
+        "order": [],
+        "scrollX": true,
+        "columnDefs": [
+            { "type": "summary", targets: '_all' },
+        ]
+    });
+    // Override the default sorting for the summary columns, which
+    // never takes the "-" character into account.
+    jQuery.extend(jQuery.fn.dataTableExt.oSort, {
+        "summary-asc": function (str1, str2) {
+            if (str1 == "<p>-</p>")
+                return 1;
+            if (str2 == "<p>-</p>")
+                return -1;
+            return ((str1 < str2) ? -1 : ((str1 > str2) ? 1 : 0));
+        },
+
+        "summary-desc": function (str1, str2) {
+            if (str1 == "<p>-</p>")
+                return 1;
+            if (str2 == "<p>-</p>")
+                return -1;
+            return ((str1 < str2) ? 1 : ((str1 > str2) ? -1 : 0));
+        }
+    });
+})
diff --git a/mmocr-dev-1.x/docs/zh_cn/_templates/classtemplate.rst b/mmocr-dev-1.x/docs/zh_cn/_templates/classtemplate.rst
new file mode 100644
index 0000000000000000000000000000000000000000..4f74842394ec9807fb1ae2d8f05a8a57e9a2e24c
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/_templates/classtemplate.rst
@@ -0,0 +1,14 @@
+.. role:: hidden
+    :class: hidden-section
+.. currentmodule:: {{ module }}
+
+
+{{ name | underline}}
+
+.. autoclass:: {{ name }}
+    :members:
+
+
+..
+  autogenerated from source/_templates/classtemplate.rst
+  note it does not have :inherited-members:
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/apis.rst b/mmocr-dev-1.x/docs/zh_cn/api/apis.rst
new file mode 100644
index 0000000000000000000000000000000000000000..fcca6a24ea6147a55010e4f3d6a5141a36d2d295
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/apis.rst
@@ -0,0 +1,26 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.apis
+===================================
+
+.. contents:: mmocr.apis
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.apis.inferencers
+
+Inferencers
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MMOCRInferencer
+   TextDetInferencer
+   TextRecInferencer
+   TextSpotInferencer
+   KIEInferencer
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/datasets.rst b/mmocr-dev-1.x/docs/zh_cn/api/datasets.rst
new file mode 100644
index 0000000000000000000000000000000000000000..8b63debf9a88a68fe97930066c2e1b8090859854
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/datasets.rst
@@ -0,0 +1,57 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.datasets
+===================================
+
+.. contents:: mmocr.datasets
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.datasets.samplers
+
+Samplers
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BatchAugSampler
+
+.. currentmodule:: mmocr.datasets
+
+Datasets
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   OCRDataset
+   WildReceiptDataset
+
+Compatible Datasets
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   IcdarDataset
+   RecogLMDBDataset
+   RecogTextDataset
+
+Dataset Wrapper
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ConcatDataset
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/engine.rst b/mmocr-dev-1.x/docs/zh_cn/api/engine.rst
new file mode 100644
index 0000000000000000000000000000000000000000..ecc8fec238acd8a4be2f2453502aac2b8e3cb7ff
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/engine.rst
@@ -0,0 +1,22 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.engine
+===================================
+
+.. contents:: mmocr.engine
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.engine.hooks
+
+Hooks
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   VisualizationHook
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/evaluation.rst b/mmocr-dev-1.x/docs/zh_cn/api/evaluation.rst
new file mode 100644
index 0000000000000000000000000000000000000000..d92d51a4ffbdeb6c7b13559e6a927682c1f246ef
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/evaluation.rst
@@ -0,0 +1,57 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.evaluation
+===================================
+
+.. contents:: mmocr.evaluation
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.evaluation.evaluator
+
+Evaluator
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MultiDatasetsEvaluator
+
+.. currentmodule:: mmocr.evaluation.metrics
+
+TextDet Metric
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   HmeanIOUMetric
+
+TextRecog Metric
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   WordMetric
+   CharMetric
+   OneMinusNEDMetric
+
+
+KIE Metric
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   F1Metric
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/models.rst b/mmocr-dev-1.x/docs/zh_cn/api/models.rst
new file mode 100644
index 0000000000000000000000000000000000000000..9ac53908debea467cc0a23ff6e6d71b670e2534e
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/models.rst
@@ -0,0 +1,423 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.models
+===================================
+
+- :mod:`~mmocr.models.common`
+
+  - :ref:`commombackbones`
+  - :ref:`commomdictionary`
+  - :ref:`commomlayers`
+  - :ref:`commomlosses`
+  - :ref:`commommodules`
+
+- :mod:`~mmocr.models.textdet`
+
+  - :ref:`detdetectors`
+  - :ref:`detdatapreprocessors`
+  - :ref:`detnecks`
+  - :ref:`detheads`
+  - :ref:`detmodulelosses`
+  - :ref:`detpostprocessors`
+
+- :mod:`~mmocr.models.textrecog`
+
+  - :ref:`recrecognizers`
+  - :ref:`recdatapreprocessors`
+  - :ref:`recpreprocessors`
+  - :ref:`recencoders`
+  - :ref:`recdecoders`
+  - :ref:`recmodulelosses`
+  - :ref:`recpostprocessors`
+  - :ref:`reclayers`
+
+- :mod:`~mmocr.models.kie`
+
+  - :ref:`kieextractors`
+  - :ref:`kieheads`
+  - :ref:`kiemodulelosses`
+  - :ref:`kiepostprocessors`
+
+
+.. module:: mmocr.models.common
+models.common
+---------------------------------------------
+.. currentmodule:: mmocr.models.common
+
+.. _commombackbones:
+
+BackBones
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   UNet
+
+.. _commomdictionary:
+
+Dictionary
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   Dictionary
+
+.. _commomlosses:
+
+Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MaskedBalancedBCEWithLogitsLoss
+   MaskedDiceLoss
+   MaskedSmoothL1Loss
+   MaskedSquareDiceLoss
+   MaskedBCEWithLogitsLoss
+   SmoothL1Loss
+   CrossEntropyLoss
+   MaskedBalancedBCELoss
+   MaskedBCELoss
+
+.. _commomlayers:
+
+Layers
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TFEncoderLayer
+   TFDecoderLayer
+
+.. _commommodules:
+
+Modules
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ScaledDotProductAttention
+   MultiHeadAttention
+   PositionwiseFeedForward
+   PositionalEncoding
+
+
+.. module:: mmocr.models.textdet
+models.textdet
+---------------------------------------------
+.. currentmodule:: mmocr.models.textdet
+
+.. _detdetectors:
+
+Detectors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SingleStageTextDetector
+   DBNet
+   PANet
+   PSENet
+   TextSnake
+   FCENet
+   DRRG
+   MMDetWrapper
+
+
+.. _detdatapreprocessors:
+
+Data Preprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextDetDataPreprocessor
+
+
+.. _detnecks:
+
+Necks
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   FPEM_FFM
+   FPNF
+   FPNC
+   FPN_UNet
+
+
+.. _detheads:
+
+Heads
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextDetHead
+   PSEHead
+   PANHead
+   DBHead
+   FCEHead
+   TextSnakeHead
+   DRRGHead
+
+
+.. _detmodulelosses:
+
+Module Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SegBasedModuleLoss
+   PANModuleLoss
+   PSEModuleLoss
+   DBModuleLoss
+   TextSnakeModuleLoss
+   FCEModuleLoss
+   DRRGModuleLoss
+
+
+.. _detpostprocessors:
+
+Postprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextDetPostProcessor
+   PSEPostprocessor
+   PANPostprocessor
+   DBPostprocessor
+   DRRGPostprocessor
+   FCEPostprocessor
+   TextSnakePostprocessor
+
+
+
+.. module:: mmocr.models.textrecog
+models.textrecog
+---------------------------------------------
+.. currentmodule:: mmocr.models.textrecog
+
+.. _recrecognizers:
+
+
+Recognizers
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseRecognizer
+   EncoderDecoderRecognizer
+   CRNN
+   SARNet
+   NRTR
+   RobustScanner
+   SATRN
+   ABINet
+   MASTER
+   ASTER
+
+.. _recdatapreprocessors:
+
+Data Preprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextRecogDataPreprocessor
+
+.. _recpreprocessors:
+
+Preprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   STN
+
+.. _recbackbones:
+
+BackBones
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ResNet31OCR
+   MiniVGG
+   NRTRModalityTransform
+   ShallowCNN
+   ResNetABI
+   ResNet
+   MobileNetV2
+
+
+.. _recencoders:
+
+Encoders
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SAREncoder
+   NRTREncoder
+   BaseEncoder
+   ChannelReductionEncoder
+   SATRNEncoder
+   ABIEncoder
+   ASTEREncoder
+
+.. _recdecoders:
+
+Decoders
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseDecoder
+   ABILanguageDecoder
+   ABIVisionDecoder
+   ABIFuser
+   CRNNDecoder
+   ParallelSARDecoder
+   SequentialSARDecoder
+   ParallelSARDecoderWithBS
+   NRTRDecoder
+   SequenceAttentionDecoder
+   PositionAttentionDecoder
+   RobustScannerFuser
+   MasterDecoder
+   ASTERDecoder
+
+.. _recmodulelosses:
+
+Module Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextRecogModuleLoss
+   CEModuleLoss
+   CTCModuleLoss
+   ABIModuleLoss
+
+.. _recpostprocessors:
+
+Postprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseTextRecogPostprocessor
+   AttentionPostprocessor
+   CTCPostProcessor
+
+.. _reclayers:
+
+Layers
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BidirectionalLSTM
+   Adaptive2DPositionalEncoding
+   BasicBlock
+   Bottleneck
+   RobustScannerFusionLayer
+   DotProductAttentionLayer
+   PositionAwareLayer
+   SATRNEncoderLayer
+
+
+.. module:: mmocr.models.kie
+models.kie
+---------------------------------------------
+.. currentmodule:: mmocr.models.kie
+
+.. _kieextractors:
+
+Extractors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGR
+
+.. _kieheads:
+
+Heads
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGRHead
+
+.. _kiemodulelosses:
+
+Module Losses
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGRModuleLoss
+
+.. _kiepostprocessors:
+
+Postprocessors
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   SDMGRPostProcessor
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/structures.rst b/mmocr-dev-1.x/docs/zh_cn/api/structures.rst
new file mode 100644
index 0000000000000000000000000000000000000000..920c4d440d65861b380427c8d077936b49515d00
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/structures.rst
@@ -0,0 +1,15 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.structures
+===================================
+
+.. currentmodule:: mmocr.structures
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextDetDataSample
+   TextRecogDataSample
+   KIEDataSample
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/transforms.rst b/mmocr-dev-1.x/docs/zh_cn/api/transforms.rst
new file mode 100644
index 0000000000000000000000000000000000000000..86f2848d6e9fd31b3b23393841200e576ee89954
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/transforms.rst
@@ -0,0 +1,110 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.datasets
+===================================
+
+.. contents:: mmocr.datasets.transforms
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.datasets.transforms
+
+Loading
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   LoadImageFromFile
+   LoadOCRAnnotations
+   LoadKIEAnnotations
+
+
+TextDet Transforms
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BoundedScaleAspectJitter
+   RandomFlip
+   SourceImagePad
+   ShortScaleAspectJitter
+   TextDetRandomCrop
+   TextDetRandomCropFlip
+
+
+TextRecog Transforms
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   TextRecogGeneralAug
+   CropHeight
+   ImageContentJitter
+   ReversePixels
+   PyramidRescale
+   PadToWidth
+   RescaleToHeight
+
+
+OCR Transforms
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   RandomCrop
+   RandomRotate
+   Resize
+   FixInvalidPolygon
+   RemoveIgnored
+
+
+
+Formatting
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   PackTextDetInputs
+   PackTextRecogInputs
+   PackKIEInputs
+
+
+Transform Wrapper
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   ImgAugWrapper
+   TorchVisionWrapper
+
+
+Adapter
+---------------------------------------------
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   MMDet2MMOCR
+   MMOCR2MMDet
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/utils.rst b/mmocr-dev-1.x/docs/zh_cn/api/utils.rst
new file mode 100644
index 0000000000000000000000000000000000000000..06cc5c64383e094d5ea9d5edbc955a4f4acbfc4d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/utils.rst
@@ -0,0 +1,101 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.utils
+===================================
+
+.. contents:: mmocr.utils
+   :depth: 2
+   :local:
+   :backlinks: top
+
+.. currentmodule:: mmocr.utils
+
+Image Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   crop_img
+   warp_img
+
+
+Box Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   bbox2poly
+   bbox_center_distance
+   bbox_diag_distance
+   bezier2polygon
+   is_on_same_line
+   rescale_bboxes
+
+   stitch_boxes_into_lines
+
+
+Point Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   point_distance
+   points_center
+
+Polygon Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   boundary_iou
+   crop_polygon
+   is_poly_inside_rect
+   offset_polygon
+   poly2bbox
+   poly2shapely
+   poly_intersection
+   poly_iou
+   poly_make_valid
+   poly_union
+   polys2shapely
+   rescale_polygon
+   rescale_polygons
+   shapely2poly
+   sort_points
+   sort_vertex
+   sort_vertex8
+
+
+Mask Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   fill_hole
+
+
+Misc Utils
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   equal_len
+   is_2dlist
+   is_3dlist
+   is_none_or_type
+   is_type_list
+
+
+Setup Env
+---------------------------------------------
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+
+   register_all_modules
diff --git a/mmocr-dev-1.x/docs/zh_cn/api/visualization.rst b/mmocr-dev-1.x/docs/zh_cn/api/visualization.rst
new file mode 100644
index 0000000000000000000000000000000000000000..e48469226cd9dac973ea7d5739af78bbe98e1992
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/api/visualization.rst
@@ -0,0 +1,18 @@
+.. role:: hidden
+    :class: hidden-section
+
+mmocr.visualization
+===================================
+
+.. currentmodule:: mmocr.visualization
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: classtemplate.rst
+
+   BaseLocalVisualizer
+   TextDetLocalVisualizer
+   TextRecogLocalVisualizer
+   TextSpottingLocalVisualizer
+   KIELocalVisualizer
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/convention.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/convention.md
new file mode 100644
index 0000000000000000000000000000000000000000..a094beccac59874fb4299d27663548329190d1ee
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/convention.md
@@ -0,0 +1,3 @@
+# 开发默认约定\[待更新\]
+
+待更新
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/data_flow.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/data_flow.md
new file mode 100644
index 0000000000000000000000000000000000000000..a07a158b177e6ae5de9d57ed12a2382c379a8edc
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/data_flow.md
@@ -0,0 +1,3 @@
+# 数据流\[待更新\]
+
+待更新
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/datasets.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/datasets.md
new file mode 100644
index 0000000000000000000000000000000000000000..16e6162d867258ff30fa5c7e92cb123042251f0d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/datasets.md
@@ -0,0 +1,489 @@
+# 数据集类
+
+## 概览
+
+在 MMOCR 中，所有的数据集都通过不同的基于 [mmengine.BaseDataset](mmengine.dataset.BaseDataset) 的 Dataset 类进行处理。 Dataset 类负责加载数据并进行初始解析，然后将其馈送到 [数据流水线](./transforms.md) 进行数据预处理、增强、格式化等操作。
+
+<div align="center">
+
+![Flowchart](https://user-images.githubusercontent.com/22607038/225302639-c65888c5-cda0-4df7-ac79-1348fe16d44a.png)
+
+</div>
+
+在本教程中，我们将介绍 Dataset 类的一些常见接口，以及 MMOCR 中 Dataset 实现的使用以及它们支持的注释类型。
+
+```{tip}
+Dataset 类支持一些高级功能，例如懒加载、数据序列化、利用各种数据集包装器执行数据连接、重复和类别平衡。这些内容将不在本教程中介绍，但您可以阅读 {external+mmengine:doc}`MMEngine: BaseDataset <advanced_tutorials/basedataset>` 了解更多详细信息。
+```
+
+## 常见接口
+
+现在，让我们看一个具体的示例并学习 Dataset 类的一些典型接口。`OCRDataset` 是 MMOCR 中默认使用的 Dataset 实现，因为它的标注格式足够灵活，支持 *所有* OCR 任务（详见 [OCRDataset](#ocrdataset)）。现在我们将实例化一个 `OCRDataset` 对象，其中将加载 `tests/data/det_toy_dataset` 中的玩具数据集。
+
+```python
+from mmocr.datasets import OCRDataset
+from mmengine.registry import init_default_scope
+init_default_scope('mmocr')
+
+train_pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+dataset = OCRDataset(
+    data_root='tests/data/det_toy_dataset',
+    ann_file='textdet_test.json',
+    test_mode=False,
+    pipeline=train_pipeline)
+
+```
+
+让我们查看一下这个数据集的大小：
+
+```python
+>>> print(len(dataset))
+
+10
+```
+
+通常，Dataset 类加载并存储两种类型的信息：（1）**元信息**：储存数据集的属性，例如此数据集中可用的对象类别。 （2）**标注**：图像的路径及其标签。我们可以通过 `dataset.metainfo` 访问元信息：
+
+```python
+>>> from pprint import pprint
+>>> pprint(dataset.metainfo)
+
+{'category': [{'id': 0, 'name': 'text'}],
+ 'dataset_type': 'TextDetDataset',
+ 'task_name': 'textdet'}
+```
+
+对于标注，我们可以通过 `dataset.get_data_info(idx)` 访问它。该方法返回一个字典，其中包含数据集中第 `idx` 个样本的信息。该样本已经经过初步解析，但尚未由 [数据流水线](./transforms.md) 处理。
+
+```python
+>>> from pprint import pprint
+>>> pprint(dataset.get_data_info(0))
+
+{'height': 720,
+ 'img_path': 'tests/data/det_toy_dataset/test/img_10.jpg',
+ 'instances': [{'bbox': [260.0, 138.0, 284.0, 158.0],
+                'bbox_label': 0,
+                'ignore': True,
+                'polygon': [261, 138, 284, 140, 279, 158, 260, 158]},
+                ...,
+               {'bbox': [1011.0, 157.0, 1079.0, 173.0],
+                'bbox_label': 0,
+                'ignore': True,
+                'polygon': [1011, 157, 1079, 160, 1076, 173, 1011, 170]}],
+ 'sample_idx': 0,
+ 'seg_map': 'test/gt_img_10.txt',
+ 'width': 1280}
+```
+
+另一方面，我们可以通过 `dataset[idx]` 或 `dataset.__getitem__(idx)` 获取由数据流水线完整处理过后的样本，该样本可以直接馈入模型并执行完整的训练/测试循环。它有两个字段：
+
+- `inputs`：经过数据增强后的图像；
+- `data_samples`：包含经过数据增强后的标注和元信息的 [DataSample](./structures.md)，这些元信息可能由一些数据变换产生，并用以记录该样本的某些关键属性。
+
+```python
+>>> pprint(dataset[0])
+
+{'data_samples': <TextDetDataSample(
+
+    META INFORMATION
+    ori_shape: (720, 1280)
+    img_path: 'tests/data/det_toy_dataset/imgs/test/img_10.jpg'
+    img_shape: (640, 640)
+
+    DATA FIELDS
+    gt_instances: <InstanceData(
+
+            META INFORMATION
+
+            DATA FIELDS
+            labels: tensor([0, 0, 0])
+            polygons: [array([207.33984 , 104.65409 , 208.34634 ,  84.528305, 231.49594 ,
+                        86.54088 , 226.46341 , 104.65409 , 207.33984 , 104.65409 ],
+                      dtype=float32), array([237.53496 , 103.6478  , 235.52196 ,  84.528305, 365.36096 ,
+                        86.54088 , 364.35446 , 107.67296 , 237.53496 , 103.6478  ],
+                      dtype=float32), array([105.68293, 166.03773, 105.68293, 151.94969, 177.14471, 150.94339,
+                       178.15121, 165.03145, 105.68293, 166.03773], dtype=float32)]
+            ignored: tensor([ True, False,  True])
+            bboxes: tensor([[207.3398,  84.5283, 231.4959, 104.6541],
+                        [235.5220,  84.5283, 365.3610, 107.6730],
+                        [105.6829, 150.9434, 178.1512, 166.0377]])
+        ) at 0x7f7359f04fa0>
+) at 0x7f735a0508e0>,
+ 'inputs': tensor([[[129, 111, 131,  ...,   0,   0,   0], ...
+                  [ 19,  18,  15,  ...,   0,   0,   0]]], dtype=torch.uint8)}
+```
+
+## 数据集类及标注格式
+
+每个数据集实现只能加载特定格式的数据集。这里列出了所有支持的数据集类及其兼容的格式，以及一个示例配置，以演示如何在实践中使用它们。
+
+```{note}
+如果您不熟悉配置系统，可以阅读 [数据集配置文件](../user_guides/dataset_prepare.md#数据集配置文件)。
+```
+
+### OCRDataset
+
+通常，OCR 数据集中有许多不同类型的标注，在不同的子任务（如文本检测和文本识别）中，格式也经常会有所不同。这些差异可能会导致在使用不同数据集时需要不同的数据加载代码，增加了用户的学习和维护成本。
+
+在 MMOCR 中，我们提出了一种统一的数据集格式，可以适应 OCR 的所有三个子任务：文本检测、文本识别和端到端 OCR。这种设计最大程度地提高了数据集的一致性，允许在不同任务之间重复使用数据标注，也使得数据集管理更加方便。考虑到流行的数据集格式并不一致，MMOCR 提供了 [Dataset Preparer](../user_guides/data_prepare/dataset_preparer.md) 来帮助用户将其数据集转换为 MMOCR 格式。我们也十分鼓励研究人员基于此数据格式开发自己的数据集。
+
+#### 标注格式
+
+此标注文件是一个 `.json` 文件，存储一个包含 `metainfo` 和 `data_list` 的 `dict`，前者包括有关数据集的基本信息，后者由每个图片的标注组成。这里呈现了标注文件中的所有字段的列表，但其中某些字段仅会在特定任务中被用到。
+
+```python
+{
+    "metainfo":
+    {
+      "dataset_type": "TextDetDataset",  # 可选项: TextDetDataset/TextRecogDataset/TextSpotterDataset
+      "task_name": "textdet",  #  可选项: textdet/textspotter/textrecog
+      "category": [{"id": 0, "name": "text"}]  # 在 textdet/textspotter 里用到
+    },
+    "data_list":
+    [
+      {
+        "img_path": "test_img.jpg",
+        "height": 604,
+        "width": 640,
+        "instances":  # 一图内的多个实例
+        [
+          {
+            "bbox": [0, 0, 10, 20],  # textdet/textspotter 内用到, [x1, y1, x2, y2]。
+            "bbox_label": 0,  # 对象类别, 在 MMOCR 中恒为 0 (文本)
+            "polygon": [0, 0, 0, 10, 10, 20, 20, 0], # textdet/textspotter 内用到。 [x1, y1, x2, y2, ....]
+            "text": "mmocr",  # textspotter/textrecog 内用到
+            "ignore": False # textspotter/textdet 内用到，决定是否在训练时忽略该实例
+          },
+          #...
+        ],
+      }
+      #... 多图片
+    ]
+}
+```
+
+#### 示例配置
+
+以下是配置的一部分，我们在 `train_dataloader` 中使用 `OCRDataset` 加载用于文本检测模型的 ICDAR2015 数据集。请注意，`OCRDataset` 可以加载由 Dataset Preparer 准备的任何 OCR 数据集。也就是说，您可以将其用于文本识别和文本检测，但您仍然需要根据不同任务的需求修改 `pipeline` 中的数据变换。
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+icdar2015_textdet_train = dict(
+    type='OCRDataset',
+    data_root='data/icdar2015',
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=pipeline)
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+```
+
+### RecogLMDBDataset
+
+当数据量非常大时，从文件中读取图像或标签可能会很慢。此外，在学术界，大多数场景文本识别数据集的图像和标签都以 lmdb 格式存储。（[示例](https://github.com/clovaai/deep-text-recognition-benchmark)）
+
+为了更接近主流实践并提高数据存储效率，MMOCR支持通过 `RecogLMDBDataset` 从 lmdb 数据集加载图像和标签。
+
+#### 标注格式
+
+MMOCR 会读取 lmdb 数据集中的以下键：
+
+- `num_samples`：描述数据集的数据量的参数。
+- 图像和标签的键分别以 `image-000000001` 和 `label-000000001` 的格式命名，索引从1开始。
+
+MMOCR 在 `tests/data/rec_toy_dataset/imgs.lmdb` 中提供了一个 toy lmdb 数据集。您可以使用以下代码片段了解其格式。
+
+```python
+>>> import lmdb
+>>>
+>>> env = lmdb.open('tests/data/rec_toy_dataset/imgs.lmdb')
+>>> txn = env.begin()
+>>> for k, v in txn.cursor():
+>>>     print(k, v)
+
+b'image-000000001' b'\xff...'
+b'image-000000002' b'\xff...'
+b'image-000000003' b'\xff...'
+b'image-000000004' b'\xff...'
+b'image-000000005' b'\xff...'
+b'image-000000006' b'\xff...'
+b'image-000000007' b'\xff...'
+b'image-000000008' b'\xff...'
+b'image-000000009' b'\xff...'
+b'image-000000010' b'\xff...'
+b'label-000000001' b'GRAND'
+b'label-000000002' b'HOTEL'
+b'label-000000003' b'HOTEL'
+b'label-000000004' b'PACIFIC'
+b'label-000000005' b'03/09/2009'
+b'label-000000006' b'ANING'
+b'label-000000007' b'Virgin'
+b'label-000000008' b'america'
+b'label-000000009' b'ATTACK'
+b'label-000000010' b'DAVIDSON'
+b'num-samples' b'10'
+
+```
+
+#### 示例配置
+
+以下是示例配置的一部分，我们在其中使用 `RecogLMDBDataset` 加载 toy 数据集。由于 `RecogLMDBDataset` 会将图像加载为 numpy 数组，因此如果要在数据管道中成功加载图像，应该记得把`LoadImageFromFile` 替换成 `LoadImageFromNDArray` 。
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromNDArray'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_text=True,
+    ),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+toy_textrecog_train = dict(
+    type='RecogLMDBDataset',
+    data_root='tests/data/rec_toy_dataset/',
+    ann_file='imgs.lmdb',
+    pipeline=pipeline)
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=toy_textrecog_train)
+```
+
+### RecogTextDataset
+
+在 MMOCR 1.0 之前，MMOCR 0.x 的文本识别任务的输入是文本文件。这些格式已在 MMOCR 1.0 中弃用，这个类随时可能被删除。[更多信息](../migration/dataset.md)
+
+#### 标注格式
+
+文本文件可以是 `txt` 格式或 `jsonl` 格式。简单的 `.txt` 标注通过空格将图像名称和词语标注分隔开，因此这种格式并无法处理文本实例中包含空格的情况。
+
+```text
+img1.jpg OpenMMLab
+img2.jpg MMOCR
+```
+
+`jsonl` 格式使用类似字典的结构来表示标注，其中键 `filename` 和 `text` 存储图像名称和单词标签。
+
+```json
+{"filename": "img1.jpg", "text": "OpenMMLab"}
+{"filename": "img2.jpg", "text": "MMOCR"}
+```
+
+#### 示例配置
+
+以下是一个示例配置，我们在训练中使用 `RecogTextDataset` 加载 txt 标签，而在测试中使用 jsonl 标签。
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+ # loading 0.x txt format annos
+ txt_dataset = dict(
+     type='RecogTextDataset',
+     data_root=data_root,
+     ann_file='old_label.txt',
+     data_prefix=dict(img_path='imgs'),
+     parser_cfg=dict(
+         type='LineStrParser',
+         keys=['filename', 'text'],
+         keys_idx=[0, 1]),
+     pipeline=pipeline)
+
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=txt_dataset)
+
+ # loading 0.x json line format annos
+ jsonl_dataset = dict(
+     type='RecogTextDataset',
+     data_root=data_root,
+     ann_file='old_label.jsonl',
+     data_prefix=dict(img_path='imgs'),
+     parser_cfg=dict(
+         type='LineJsonParser',
+         keys=['filename', 'text'],
+     pipeline=pipeline))
+
+test_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=jsonl_dataset)
+```
+
+### IcdarDataset
+
+在 MMOCR 1.0 之前，MMOCR 0.x 的文本检测输入采用了类似 COCO 格式的注释。这些格式已在 MMOCR 1.0 中弃用，这个类在将来的任何时候都可能被删除。[更多信息](../migration/dataset.md)
+
+#### 标注格式
+
+```json
+{
+  "images": [
+    {
+      "id": 1,
+      "width": 800,
+      "height": 600,
+      "file_name": "test.jpg"
+    }
+  ],
+  "annotations": [
+    {
+      "id": 1,
+      "image_id": 1,
+      "category_id": 1,
+      "bbox": [0,0,10,10],
+      "segmentation": [
+          [0,0,10,0,10,10,0,10]
+      ],
+      "area": 100,
+      "iscrowd": 0
+    }
+  ]
+}
+
+```
+
+#### 配置示例
+
+这是配置示例的一部分，其中我们令 `train_dataloader` 使用 `IcdarDataset` 来加载旧标签。
+
+```python
+pipeline = [
+    dict(
+        type='LoadImageFromFile'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+
+icdar2015_textdet_train = dict(
+    type='IcdarDatasetDataset',
+    data_root='data/det/icdar2015',
+    ann_file='instances_training.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=pipeline)
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+```
+
+### WildReceiptDataset
+
+该类为 [WildReceipt](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/data_prepare/datasetzoo.html#wildreceipt) 数据集定制。
+
+#### 标注格式
+
+```json
+// Close Set
+{
+  "file_name": "image_files/Image_16/11/d5de7f2a20751e50b84c747c17a24cd98bed3554.jpeg",
+  "height": 1200,
+  "width": 1600,
+  "annotations":
+    [
+      {
+        "box": [550.0, 190.0, 937.0, 190.0, 937.0, 104.0, 550.0, 104.0],
+        "text": "SAFEWAY",
+        "label": 1
+      },
+      {
+        "box": [1048.0, 211.0, 1074.0, 211.0, 1074.0, 196.0, 1048.0, 196.0],
+        "text": "TM",
+        "label": 25
+      }
+    ], //...
+}
+
+// Open Set
+{
+  "file_name": "image_files/Image_12/10/845be0dd6f5b04866a2042abd28d558032ef2576.jpeg",
+  "height": 348,
+  "width": 348,
+  "annotations":
+    [
+      {
+        "box": [114.0, 19.0, 230.0, 19.0, 230.0, 1.0, 114.0, 1.0],
+        "text": "CHOEUN",
+        "label": 2,
+        "edge": 1
+      },
+      {
+        "box": [97.0, 35.0, 236.0, 35.0, 236.0, 19.0, 97.0, 19.0],
+        "text": "KOREANRESTAURANT",
+        "label": 2,
+        "edge": 1
+      }
+    ]
+}
+```
+
+#### 配置示例
+
+请参考 [SDMGR 的配置](https://github.com/open-mmlab/mmocr/blob/f30c16ce96bd2393570c04eeb9cf48a7916315cc/configs/kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py)。
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/engine.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/engine.md
new file mode 100644
index 0000000000000000000000000000000000000000..57cb62ae9d5f35d6dccd4467e5fba09353972a49
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/engine.md
@@ -0,0 +1,3 @@
+# 引擎\[待更新\]
+
+待更新
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/evaluation.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/evaluation.md
new file mode 100644
index 0000000000000000000000000000000000000000..15eab4daebcb4a835ca915a18ee827826ea03b1e
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/evaluation.md
@@ -0,0 +1,198 @@
+# 模型评测
+
+```{note}
+阅读此文档前，建议您先了解 {external+mmengine:doc}`MMEngine: 模型精度评测基本概念 <tutorials/evaluation>`。
+```
+
+## 评测指标
+
+MMOCR 基于 {external+mmengine:doc}`MMEngine: BaseMetric <design/evaluation>` 基类实现了常用的文本检测、文本识别以及关键信息抽取任务的评测指标，用户可以通过修改配置文件中的 `val_evaluator` 与 `test_evaluator` 字段来便捷地指定验证与测试阶段采用的评测方法。例如，以下配置展示了如何在文本检测算法中使用 `HmeanIOUMetric` 来评测模型性能。
+
+```python
+# 文本检测任务中通常使用 HmeanIOUMetric 来评测模型性能
+val_evaluator = [dict(type='HmeanIOUMetric')]
+
+# 此外，MMOCR 也支持相同任务下的多种指标组合评测，如同时使用 WordMetric 及 CharMetric
+val_evaluator = [
+    dict(type='WordMetric', mode=['exact', 'ignore_case', 'ignore_case_symbol']),
+    dict(type='CharMetric')
+]
+```
+
+```{tip}
+更多评测相关配置请参考[评测配置教程](../user_guides/config.md#评测配置)。
+```
+
+如下表所示，MMOCR 目前针对文本检测、识别、及关键信息抽取等任务共内置了 5 种评测指标，分别为 `HmeanIOUMetric`，`WordMetric`，`CharMetric`，`OneMinusNEDMetric`，和 `F1Metric`。
+
+|                                         |              |                                                   |                                                                       |
+| --------------------------------------- | ------------ | ------------------------------------------------- | --------------------------------------------------------------------- |
+| 评测指标                                | 任务类型     | 输入字段                                          | 输出字段                                                              |
+| [HmeanIOUMetric](#hmeanioumetric)       | 文本检测     | `pred_polygons`<br>`pred_scores`<br>`gt_polygons` | `recall`<br>`precision`<br>`hmean`                                    |
+| [WordMetric](#wordmetric)               | 文本识别     | `pred_text`<br>`gt_text`                          | `word_acc`<br>`word_acc_ignore_case`<br>`word_acc_ignore_case_symbol` |
+| [CharMetric](#charmetric)               | 文本识别     | `pred_text`<br>`gt_text`                          | `char_recall`<br>`char_precision`                                     |
+| [OneMinusNEDMetric](#oneminusnedmetric) | 文本识别     | `pred_text`<br>`gt_text`                          | `1-N.E.D`                                                             |
+| [F1Metric](#f1metric)                   | 关键信息抽取 | `pred_labels`<br>`gt_labels`                      | `macro_f1`<br>`micro_f1`                                              |
+
+通常来说，每一类任务所采用的评测标准是约定俗成的，用户一般无须深入了解或手动修改评测方法的内部实现。然而，为了方便用户实现更加定制化的需求，本文档将进一步介绍了 MMOCR 内置评测算法的具体实现策略，以及可配置参数。
+
+### HmeanIOUMetric
+
+[HmeanIOUMetric](mmocr.evaluation.metrics.hmean_iou_metric.HmeanIOUMetric) 是文本检测任务中应用最广泛的评测指标之一，因其计算了检测精度（Precision）与召回率（Recall）之间的调和平均数（Harmonic mean, H-mean），故得名 `HmeanIOUMetric`。记精度为 *P*，召回率为 *R*，则 `HmeanIOUMetric` 可由下式计算得到：
+
+```{math}
+H = \frac{2}{\frac{1}{P} + \frac{1}{R}} = \frac{2PR}{P+R}
+```
+
+另外，由于其等价于 {math}`\beta = 1` 时的 F-score (又称 F-measure 或 F-metric)，`HmeanIOUMetric` 有时也被写作 `F1Metric` 或 `f1-score` 等：
+
+```{math}
+F_1=(1+\beta^2)\cdot\frac{PR}{\beta^2\cdot P+R} = \frac{2PR}{P+R}
+```
+
+在 MMOCR 的设计中，`HmeanIOUMetric` 的计算可以概括为以下几个步骤：
+
+1. 过滤无效的预测边界盒
+
+   - 依据置信度阈值 `pred_score_thrs` 过滤掉得分较低的预测边界盒
+   - 依据 `ignore_precision_thr` 阈值过滤掉与 `ignored` 样本重合度过高的预测边界盒
+
+   值得注意的是，`pred_score_thrs` 默认将**自动搜索**一定范围内的**最佳阈值**，用户也可以通过手动修改配置文件来自定义搜索范围：
+
+   ```python
+   # HmeanIOUMetric 默认以 0.1 为步长搜索 [0.3, 0.9] 范围内的最佳得分阈值
+   val_evaluator = dict(type='HmeanIOUMetric', pred_score_thrs=dict(start=0.3, stop=0.9, step=0.1))
+   ```
+
+2. 计算 IoU 矩阵
+
+   - 在数据处理阶段，`HmeanIOUMetric` 会计算并维护一个 {math}`M \times N` 的 IoU 矩阵 `iou_metric`，以方便后续的边界盒配对步骤。其中，M 和 N 分别为标签边界盒与过滤后预测边界盒的数量。由此，该矩阵的每个元素都存放了第 m 个标签边界盒与第 n 个预测边界盒之间的交并比（IoU）。
+
+3. 基于相应的配对策略统计能被准确匹配的 GT 样本数
+
+   尽管 `HmeanIOUMetric` 可以由固定的公式计算取得，不同的任务或算法库内部的具体实现仍可能存在一些细微差别。这些差异主要体现在采用不同的策略来匹配真实与预测边界盒，从而导致最终得分的差距。目前，MMOCR 内部的 `HmeanIOUMetric` 共支持两种不同的匹配策略，即 `vanilla` 与 `max_matching`。如下所示，用户可以通过修改配置文件来指定不同的匹配策略。
+
+   - `vanilla` 匹配策略
+
+     `HmeanIOUMetric` 默认采用 `vanilla` 匹配策略，该实现与 MMOCR 0.x 版本中的 `hmean-iou` 及 ICDAR 系列**官方文本检测竞赛的评测标准保持一致**，采用先到先得的匹配方式对标签边界盒（Ground-truth bbox）与预测边界盒（Predicted bbox）进行配对。
+
+     ```python
+     # 不指定 strategy 时，HmeanIOUMetric 默认采用 'vanilla' 匹配策略
+     val_evaluator = dict(type='HmeanIOUMetric')
+     ```
+
+   - `max_matching` 匹配策略
+
+     针对现有匹配机制中的不完善之处，MMOCR 算法库实现了一套更高效的匹配策略，用以最大化匹配数目。
+
+     ```python
+     # 指定采用 'max_matching' 匹配策略
+     val_evaluator = dict(type='HmeanIOUMetric', strategy='max_matching')
+     ```
+
+   ```{note}
+   我们建议面向学术研究的开发用户采用默认的 `vanilla` 匹配策略，以保证与其他论文的对比结果保持一致。而面向工业应用的开发用户则可以采用 `max_matching` 匹配策略，以获得精准的结果。
+   ```
+
+4. 根据上文介绍的 `HmeanIOUMetric` 公式计算最终的评测得分
+
+### WordMetric
+
+[WordMetric](mmocr.evaluation.metrics.recog_metric.WordMetric) 实现了**单词级别**的文本识别评测指标，并内置了 `exact`，`ignore_case`，及 `ignore_case_symbol` 三种文本匹配模式，用户可以在配置文件中修改 `mode` 字段来自由组合输出一种或多种文本匹配模式下的 `WordMetric` 得分。
+
+```python
+# 在文本识别任务中使用 WordMetric 评测
+val_evaluator = [
+    dict(type='WordMetric', mode=['exact', 'ignore_case', 'ignore_case_symbol'])
+]
+```
+
+- `exact`：全匹配模式，即，预测与标签完全一致才能被记录为正确样本。
+- `ignore_case`：忽略大小写的匹配模式。
+- `ignore_case_symbol`：忽略大小写及符号的匹配模式，这也是大部分学术论文中报告的文本识别准确率；MMOCR 报告的识别模型性能默认采用该匹配模式。
+
+假设真实标签为 `MMOCR!`，模型的输出结果为 `mmocr`，则三种匹配模式下的 `WordMetric` 得分分别为：`{'exact': 0, 'ignore_case': 0, 'ignore_case_symbol': 1}`。
+
+### CharMetric
+
+[CharMetric](mmocr.evaluation.metrics.recog_metric.CharMetric) 实现了**不区分大小写**的**字符级别**的文本识别评测指标。
+
+```python
+# 在文本识别任务中使用 CharMetric 评测
+val_evaluator = [dict(type='CharMetric')]
+```
+
+具体而言，`CharMetric` 会输出两个评测评测指标，即字符精度 `char_precision` 和字符召回率 `char_recall`。设正确预测的字符（True Positive）数量为 {math}`\sigma_{tp}`，则精度 *P* 和召回率 *R* 可由下式计算取得：
+
+```{math}
+P=\frac{\sigma_{tp}}{\sigma_{pred}}, R = \frac{\sigma_{tp}}{\sigma_{gt}}
+```
+
+其中，{math}`\sigma_{gt}` 与 {math}`\sigma_{pred}` 分别为标签文本与预测文本所包含的字符总数。
+
+例如，假设标签文本为 "MM**O**CR"，预测文本为 "mm**0**cR**1**"，则使用 `CharMetric` 评测指标的得分为：
+
+```{math}
+P=\frac{4}{6}, R=\frac{4}{5}
+```
+
+### OneMinusNEDMetric
+
+[`OneMinusNEDMetric(1-N.E.D)`](mmocr.evaluation.metrics.recog_metric.OneMinusNEDMetric) 常用于中文或英文**文本行级别**标注的文本识别评测，不同于全匹配的评测标准要求预测与真实样本完全一致，该评测指标使用归一化的[编辑距离](https://en.wikipedia.org/wiki/Edit_distance)（Edit Distance，又名莱温斯坦距离 Levenshtein Distance）来测量预测文本与真实文本之间的差异性，从而在评测长文本样本时能够更好地区分出模型的性能差异。假设真实和预测文本分别为 {math}`s_i` 和 {math}`\hat{s_i}`，其长度分别为 {math}`l_{i}` 和 {math}`\hat{l_i}`，则 `OneMinusNEDMetric` 得分可由下式计算得到：
+
+```{math}
+score = 1 - \frac{1}{N}\sum_{i=1}^{N}\frac{D(s_i, \hat{s_{i}})}{max(l_{i},\hat{l_{i}})}
+```
+
+其中，*N* 是样本总数，{math}`D(s_1, s_2)` 为两个字符串之间的编辑距离。
+
+例如，假设真实标签为 "OpenMMLabMMOCR"，模型 A 的预测结果为 "0penMMLabMMOCR", 模型 B 的预测结果为 "uvwxyz"，则采用全匹配和 `OneMinusNEDMetric` 评测指标的结果分别为:
+
+|        |        |            |
+| ------ | ------ | ---------- |
+|        | 全匹配 | 1 - N.E.D. |
+| 模型 A | 0      | 0.92857    |
+| 模型 B | 0      | 0          |
+
+由上表可以发现，尽管模型 A 仅预测错了一个字母，而模型 B 全部预测错误，在使用全匹配的评测指标时，这两个模型的得分都为0；而使用 `OneMinuesNEDMetric` 的评测指标则能够更好地区分模型在**长文本**上的性能差异。
+
+### F1Metric
+
+[F1Metric](mmocr.evaluation.metrics.f_metric.F1Metric) 实现了针对 KIE 任务的 F1-Metric 评测指标，并提供了 `micro` 和 `macro` 两种评测模式。
+
+```python
+val_evaluator = [
+    dict(type='F1Metric', mode=['micro', 'macro'],
+]
+```
+
+- `micro` 模式：依据 True Positive，False Negative，及 False Positive 总数来计算全局 F1-Metric 得分。
+
+- `macro` 模式：依据类别标签计算每一类的 F1-Metric，并求平均值。
+
+### 自定义评测指标
+
+对于追求更高定制化功能的用户，MMOCR 也支持自定义实现不同类型的评测指标。一般来说，用户只需要新建自定义评测指标类 `CustomizedMetric` 并继承 {external+mmengine:doc}`MMEngine: BaseMetric <design/evaluation>`，然后分别重写数据格式处理方法 `process` 以及指标计算方法 `compute_metrics`。最后，将其加入 `METRICS` 注册器即可实现任意定制化的评测指标。
+
+```python
+from mmengine.evaluator import BaseMetric
+from mmocr.registry import METRICS
+
+@METRICS.register_module()
+class CustomizedMetric(BaseMetric):
+
+    def process(self, data_batch: Sequence[Dict], predictions: Sequence[Dict]):
+    """ process 接收两个参数，分别为 data_batch 存放真实标签信息，以及 predictions
+        存放预测结果。process 方法负责将标签信息转换并存放至 self.results 变量中
+    """
+        pass
+
+    def compute_metrics(self, results: List):
+    """ compute_metric 使用经过 process 方法处理过的标签数据计算最终评测得分
+    """
+        pass
+```
+
+```{note}
+更多内容可参见 {external+mmengine:doc}`MMEngine 文档: BaseMetric <design/evaluation>`。
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/models.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/models.md
new file mode 100644
index 0000000000000000000000000000000000000000..7ec449d5c7015e73a4cef161988e0fe57c8706ef
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/models.md
@@ -0,0 +1,3 @@
+# 模型\[待更新\]
+
+待更新
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/overview.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/overview.md
new file mode 100644
index 0000000000000000000000000000000000000000..bbd721395c5075bc7564dbd206c21bef27353fe5
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/overview.md
@@ -0,0 +1,3 @@
+# 设计理念与特性\[待更新\]
+
+待更新
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/structures.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/structures.md
new file mode 100644
index 0000000000000000000000000000000000000000..857a356f8b42950c1d941115b2f4d2f257d04078
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/structures.md
@@ -0,0 +1,219 @@
+# 数据元素与数据结构
+
+MMOCR 基于 {external+mmengine:doc}`MMEngine: 抽象数据接口 <advanced_tutorials/data_element>` 将各任务所需的数据统一封装入 `data_sample` 中。MMEngine 的抽象数据接口实现了基础的增/删/改/查功能，且支持不同设备间的数据迁移，也支持了类字典和张量的操作，充分满足了数据的日常使用需求，这也使得不同算法的数据接口可以得到统一。
+
+得益于统一的数据封装，算法库内的 [`visualizer`](./visualizers.md)，[`evaluator`](./evaluation.md)，[`dataset`](./datasets.md) 等各个模块间的数据流通都得到了极大的简化。在 MMOCR 中，我们对数据接口类型作出以下约定：
+
+- **xxxData**: 单一粒度的数据标注或模型输出。目前 MMEngine 内置了三种粒度的{external+mmengine:doc}`数据元素 <advanced_tutorials/data_element>`，包括实例级数据（`InstanceData`），像素级数据（`PixelData`）以及图像级的标签数据（`LabelData`）。在 MMOCR 目前支持的任务中，文本检测以及关键信息抽取任务使用 `InstanceData` 来封装文本实例的检测框及对应标签，而文本识别任务则使用了 `LabelData` 来封装文本内容。
+- **xxxDataSample**: 继承自 {external+mmengine:doc}`MMEngine: 数据基类 <advanced_tutorials/data_element>` `BaseDataElement`，用于保存单个任务的训练或测试样本的**所有**标注及预测信息。如文本检测任务的数据样本类 [`TextDetDataSample`](mmocr.structures.textdet_data_sample.TextDetDataSample)，文本识别任务的数据样本类 [`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample)，以及关键信息抽任务的数据样本类 [`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample)。
+
+下面，我们将分别介绍数据元素 **xxxData** 与数据样本 **xxxDataSample** 在 MMOCR 中的实际应用。
+
+## 数据元素 xxxData
+
+`InstanceData` 和 `LabelData` 是 `MMEngine`中定义的基础数据元素，用于封装不同粒度的标注数据或模型输出。在 MMOCR 中，我们针对不同任务中实际使用的数据类型，分别采用了 `InstanceData` 与 `LabelData` 进行了封装。
+
+### InstanceData
+
+在**文本检测**任务中，检测器关注的是实例级别的文字样本，因此我们使用 `InstanceData` 来封装该任务所需的数据。其所需的训练标注和预测输出通常包含了矩形或多边形边界盒，以及边界盒标签。由于文本检测任务只有一种正样本类，即 “text”，在 MMOCR 中我们默认使用 `0` 来编号该类别。以下代码示例展示了如何使用 `InstanceData` 数据抽象接口来封装文本检测任务中使用的数据类型。
+
+```python
+import torch
+from mmengine.structures import InstanceData
+
+# 定义 gt_instance 用于封装边界盒的标注信息
+gt_instance = InstanceData()
+gt_instance.bbox = torch.Tensor([[0, 0, 10, 10], [10, 10, 20, 20]])
+gt_instance.polygons = torch.Tensor([[[0, 0], [10, 0], [10, 10], [0, 10]],
+                                    [[10, 10], [20, 10], [20, 20], [10, 20]]])
+gt_instance.label = torch.Tensor([0, 0])
+
+# 定义 pred_instance 用于封装模型的输出信息
+pred_instances = InstanceData()
+pred_polygons, scores = model(input)
+pred_instances.polygons = pred_polygons
+pred_instances.scores = scores
+```
+
+MMOCR 中对 `InstanceData` 字段的约定如下表所示。值得注意的是，`InstanceData` 中的各字段的长度必须为与样本中的实例个数 `N` 相等。
+
+|             |                                    |                                                                                                                                      |
+| ----------- | ---------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
+| 字段        | 类型                               | 说明                                                                                                                                 |
+| bboxes      | `torch.FloatTensor`                | 文本边界框 `[x1, y1, x2, y2]`，形状为 `(N, 4)`。                                                                                     |
+| labels      | `torch.LongTensor`                 | 实例的类别，长度为 `(N, )`。MMOCR 中默认使用 `0` 来表示正样本类，即 “text” 类。                                                      |
+| polygons    | `list[np.array(dtype=np.float32)]` | 表示文本实例的多边形，列表长度为 `(N, )`。                                                                                           |
+| scores      | `torch.Tensor`                     | 文本实例检测框的置信度，长度为 `(N, )`。                                                                                             |
+| ignored     | `torch.BoolTensor`                 | 是否在训练中忽略当前文本实例，长度为 `(N, )`。                                                                                       |
+| texts       | `list[str]`                        | 实例对应的文本，长度为 `(N, )`，用于端到端 OCR 任务和 KIE。                                                                          |
+| text_scores | `torch.FloatTensor`                | 文本预测的置信度，长度为`(N, )`，用于端到端 OCR 任务。                                                                               |
+| edge_labels | `torch.IntTensor`                  | 节点的邻接矩阵，形状为 `(N, N)`。在 KIE 任务中，节点之间状态的可选值为 `-1` （忽略，不参与 loss 计算），`0` （断开）和 `1`（连接）。 |
+| edge_scores | `torch.FloatTensor`                | 用于 KIE 任务中每条边的预测置信度，形状为 `(N, N)`。                                                                                 |
+
+### LabelData
+
+对于**文字识别**任务，标注内容和预测内容都会使用 `LabelData` 进行封装。
+
+```python
+import torch
+from mmengine.data import LabelData
+
+# 定义一个 gt_text 用于封装标签文本内容
+gt_text = LabelData()
+gt_text.item = 'MMOCR'
+
+# 定义一个 pred_text 对象用于封装预测文本以及置信度
+pred_text = LabelData()
+index, score = model(input)
+text = dictionary.idx2str(index)
+pred_text.score = score
+pred_text.item = text
+```
+
+MMOCR 中对 `LabelData` 字段的约定如下表所示：
+
+|                |                    |                                                                                                                            |
+| -------------- | ------------------ | -------------------------------------------------------------------------------------------------------------------------- |
+| 字段           | 类型               | 说明                                                                                                                       |
+| item           | `str`              | 文本内容。                                                                                                                 |
+| score          | `list[float]`      | 预测的文本内容的置信度。                                                                                                   |
+| indexes        | `torch.LongTensor` | 文本字符经过[字典](../basic_concepts/models.md#dictionary)编码后的序列，且包含了除 `<UNK>` 以外的所有特殊字符。            |
+| padded_indexes | `torch.LongTensor` | 如果 indexes 的长度小于最大序列长度，且 `pad_idx` 存在时，该字段保存了填充至最大序列长度 `max_seq_len`的编码后的文本序列。 |
+
+## 数据样本 xxxDataSample
+
+通过定义统一的数据结构，我们可以方便地将标注数据和预测结果进行统一封装，使代码库不同模块间的数据传递更加便捷。在 MMOCR 中，我们基于现在支持的三个任务及其所需要的数据分别封装了三种数据抽象，包括文本检测任务数据抽象 [`TextDetDataSample`](mmocr.structures.textdet_data_sample.TextDetDataSample)，文本识别任务数据抽象 [`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample)，以及关键信息抽取任务数据抽象 [`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample)。这些数据抽象均继承自 {external+mmengine:doc}`MMEngine: 数据基类 <advanced_tutorials/data_element>` `BaseDataElement`，用于保存单个任务的训练或测试样本的所有标注及预测信息。
+
+### 文本检测任务数据抽象 TextDetDataSample
+
+[TextDetDataSample](mmocr.structures.textdet_data_sample.TextDetDataSample) 用于封装文字检测任务所需的数据，其主要包含了两个字段 `gt_instances` 与 `pred_instances`，分别用于存放标注信息与预测结果。
+
+|                |                                 |            |
+| -------------- | ------------------------------- | ---------- |
+| 字段           | 类型                            | 说明       |
+| gt_instances   | [`InstanceData`](#instancedata) | 标注信息。 |
+| pred_instances | [`InstanceData`](#instancedata) | 预测结果。 |
+
+其中会用到的 [`InstanceData`](#instancedata) 约定字段有：
+
+|          |                                    |                                                                                  |
+| -------- | ---------------------------------- | -------------------------------------------------------------------------------- |
+| 字段     | 类型                               | 说明                                                                             |
+| bboxes   | `torch.FloatTensor`                | 文本边界框 `[x1, y1, x2, y2]`，形状为 `(N, 4)`。                                 |
+| labels   | `torch.LongTensor`                 | 实例的类别，长度为 `(N, )`。在 MMOCR 中通常使用 `0` 来表示正样本类，即 “text” 类 |
+| polygons | `list[np.array(dtype=np.float32)]` | 表示文本实例的多边形，列表长度为 `(N, )`。                                       |
+| scores   | `torch.Tensor`                     | 文本实例任务预测的检测框的置信度，长度为 `(N, )`。                               |
+| ignored  | `torch.BoolTensor`                 | 是否在训练中忽略当前文本实例，长度为 `(N, )`。                                   |
+
+由于文本检测模型通常只会输出 bboxes/polygons 中的一项，因此我们只需确保这两项中的一个被赋值即可。
+
+以下示例代码展示了 `TextDetDataSample` 的使用方法：
+
+```python
+import torch
+from mmengine.data import TextDetDataSample
+
+data_sample = TextDetDataSample()
+# 指定当前图片的标注信息
+img_meta = dict(img_shape=(800, 1196, 3), pad_shape=(800, 1216, 3))
+gt_instances = InstanceData(metainfo=img_meta)
+gt_instances.bboxes = torch.rand((5, 4))
+gt_instances.labels = torch.zeros((5,), dtype=torch.long)
+data_sample.gt_instances = gt_instances
+
+# 指定当前图片的预测信息
+pred_instances = InstanceData()
+pred_instances.bboxes = torch.rand((5, 4))
+pred_instances.labels = torch.zeros((5,), dtype=torch.long)
+data_sample.pred_instances = pred_instances
+```
+
+### 文本识别任务数据抽象 TextRecogDataSample
+
+[`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample) 用于封装文字识别任务的数据。它有两个属性，`gt_text` 和 `pred_text` , 分别用于存放标注信息和预测结果。
+
+|           |                           |            |
+| --------- | ------------------------- | ---------- |
+| 字段      | 类型                      | 说明       |
+| gt_text   | [`LabelData`](#labeldata) | 标注信息。 |
+| pred_text | [`LabelData`](#labeldata) | 预测结果。 |
+
+以下示例代码展示了 [`TextRecogDataSample`](mmocr.structures.textrecog_data_sample.TextRecogDataSample) 的使用方法：
+
+```python
+import torch
+from mmengine.data import TextRecogDataSample
+
+data_sample = TextRecogDataSample()
+# 指定当前图片的标注信息
+img_meta = dict(img_shape=(800, 1196, 3), pad_shape=(800, 1216, 3))
+gt_text = LabelData(metainfo=img_meta)
+gt_text.item = 'mmocr'
+data_sample.gt_text = gt_text
+
+# 指定当前图片的预测结果
+pred_text = LabelData(metainfo=img_meta)
+pred_text.item = 'mmocr'
+data_sample.pred_text = pred_text
+```
+
+其中会用到的 `LabelData` 字段有：
+
+|                |                     |                                                                                                                            |
+| -------------- | ------------------- | -------------------------------------------------------------------------------------------------------------------------- |
+| 字段           | 类型                | 说明                                                                                                                       |
+| item           | `list[str]`         | 实例对应的文本，长度为 (N, ) ，用于端到端 OCR 任务和 KIE                                                                   |
+| score          | `torch.FloatTensor` | 文本预测的置信度，长度为 (N, )，用于端到端 OCR 任务                                                                        |
+| indexes        | `torch.LongTensor`  | 文本字符经过[字典](../basic_concepts/models.md#dictionary)编码后的序列，且包含了除 `<UNK>` 以外的所有特殊字符。            |
+| padded_indexes | `torch.LongTensor`  | 如果 indexes 的长度小于最大序列长度，且 `pad_idx` 存在时，该字段保存了填充至最大序列长度 `max_seq_len`的编码后的文本序列。 |
+
+### 关键信息抽取任务数据抽象 KIEDataSample
+
+[`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample) 用于封装 KIE 任务所需的数据，其同样约定了两个属性，即 `gt_instances` 与 `pred_instances`，分别用于存放标注信息与预测结果。
+
+|                |                                 |            |
+| -------------- | ------------------------------- | ---------- |
+| 字段           | 类型                            | 说明       |
+| gt_instances   | [`InstanceData`](#instancedata) | 标注信息。 |
+| pred_instances | [`InstanceData`](#instancedata) | 预测结果。 |
+
+该任务会用到的 [`InstanceData`](#instancedata) 字段如下表所示：
+
+|             |                     |                                                                                                                                               |
+| ----------- | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------- |
+| 字段        | 类型                | 说明                                                                                                                                          |
+| bboxes      | `torch.Tensor`      | 文本边界框 `[x1, y1, x2, y2]`，形状为 `(N, 4)`。                                                                                              |
+| labels      | `torch.LongTensor`  | 实例的类别，长度为 `(N, )`。在 MMOCR 中通常为 0，即 “text” 类。                                                                               |
+| texts       | `list[str]`         | 实例对应的文本，长度为 `(N, )` ，用于端到端 OCR 任务和 KIE 任务。                                                                             |
+| edge_labels | `torch.IntTensor`   | 节点之间的邻接矩阵，形状为 `(N, N)`。在 KIE 任务中，节点之间状态的可选值为 `-1` （不关心，且不参与 loss 计算），`0` （断开）和 `1` （连接）。 |
+| edge_scores | `torch.FloatTensor` | 每条边的预测置信度，形状为 `(N, N)`。                                                                                                         |
+| scores      | `torch.FloatTensor` | 节点标签的预测置信度, 形状为 `(N,)`。                                                                                                         |
+
+```{warning}
+由于 KIE 任务的模型实现尚未有统一标准，该设计目前仅考虑了 [SDMGR](../../../configs/kie/sdmgr/README.md) 模型的使用场景。因此，该设计有可能在我们支持更多 KIE 模型后产生变动。
+```
+
+以下示例代码展示了 [`KIEDataSample`](mmocr.structures.kie_data_sample.KIEDataSample) 的使用方法。
+
+```python
+import torch
+from mmengine.data import KIEDataSample
+
+data_sample = KIEDataSample()
+# 指定当前图片的标注信息
+img_meta = dict(img_shape=(800, 1196, 3),pad_shape=(800, 1216, 3))
+gt_instances = InstanceData(metainfo=img_meta)
+gt_instances.bboxes = torch.rand((5, 4))
+gt_instances.labels = torch.zeros((5,), dtype=torch.long)
+gt_instances.texts = ['text1', 'text2', 'text3', 'text4', 'text5']
+gt_instances.edge_lebels = torch.randint(-1, 2, (5, 5))
+data_sample.gt_instances = gt_instances
+
+# 指定当前图片的预测信息
+pred_instances = InstanceData()
+pred_instances.bboxes = torch.rand((5, 4))
+pred_instances.labels = torch.rand((5,))
+pred_instances.edge_labels = torch.randint(-1, 2, (10, 10))
+pred_instances.edge_scores = torch.rand((10, 10))
+data_sample.pred_instances = pred_instances
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/transforms.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/transforms.md
new file mode 100644
index 0000000000000000000000000000000000000000..cc07c986d713089585aa28d19e85e1b397025ff8
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/transforms.md
@@ -0,0 +1,227 @@
+# 数据变换与流水线
+
+在 MMOCR 的设计中，数据集的构建与数据准备是相互解耦的。也就是说，[`OCRDataset`](mmocr.datasets.ocr_dataset.OCRDataset) 等数据集构建类负责完成标注文件的读取与解析功能；而数据变换方法（Data Transforms）则进一步实现了数据预处理、数据增强、数据格式化等相关功能。目前，如下表所示，MMOCR 中共实现了 5 类数据变换方法：
+
+|                |                                                                       |                                                                     |
+| -------------- | --------------------------------------------------------------------- | ------------------------------------------------------------------- |
+| 数据变换类型   | 对应文件                                                              | 功能说明                                                            |
+| 数据读取       | loading.py                                                            | 实现了不同格式数据的读取功能。                                      |
+| 数据格式化     | formatting.py                                                         | 完成不同任务所需数据的格式化功能。                                  |
+| 跨库数据适配器 | adapters.py                                                           | 负责 OpenMMLab 项目内跨库调用的数据格式转换功能。                   |
+| 数据增强       | ocr_transforms.py<br>textdet_transforms.py<br>textrecog_transforms.py | 实现了不同任务下的各类数据增强方法。                                |
+| 包装类         | wrappers.py                                                           | 实现了对 ImgAug 等常用算法库的包装，使其适配 MMOCR 的内部数据格式。 |
+
+由于每一个数据变换类之间都是相互独立的，因此，在约定好固定的数据存储字段后，我们可以便捷地采用任意的数据变换组合来构建数据流水线（Pipeline）。如下图所示，在 MMOCR 中，一个典型的训练数据流水线主要由**数据读取**、**图像增强**以及**数据格式化**三部分构成，用户只需要在配置文件中定义相关的数据流水线列表，并指定具体所需的数据变换类及其参数即可：
+
+<div align="center">
+
+![Flowchart](https://user-images.githubusercontent.com/45810070/192265777-0f1f4b52-1a17-4b1a-8c1b-ba6ef17289d6.jpg)
+
+</div>
+
+```python
+train_pipeline_r18 = [
+    # 数据读取（图像）
+    dict(
+        type='LoadImageFromFile',
+        color_type='color_ignore_orientation'),
+    # 数据读取（标注）
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+    ),
+    # 使用 ImgAug 作数据增强
+    dict(
+        type='ImgAugWrapper',
+        args=[['Fliplr', 0.5],
+              dict(cls='Affine', rotate=[-10, 10]), ['Resize', [0.5, 3.0]]]),
+    # 使用 MMOCR 内置的图像增强
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(type='Resize', scale=(640, 640), keep_ratio=True),
+    dict(type='Pad', size=(640, 640)),
+    # 数据格式化
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape'))
+]
+```
+
+```{tip}
+更多有关数据流水线配置的教程可见[配置文档](../user_guides/config.md#数据流水线配置)。下面，我们将简单介绍 MMOCR 中已支持的数据变换类型。
+```
+
+对于每一个数据变换方法，MMOCR 都严格按照文档字符串（docstring）规范在源码中提供了详细的代码注释。例如，每一个数据转换类的头部我们都注释了 “需求字段”（`Required keys`）， “修改字段”（`Modified Keys`）与 “添加字段”（`Added Keys`）。其中，“需求字段”代表该数据转换方法对于输入数据所需包含字段的强制需求，而“修改字段”与“添加字段”则表明该方法可能会在原有数据基础之上修改或添加的字段。例如，`LoadImageFromFile` 实现了图片的读取功能，其需求字段为图像的存储路径 `img_path`，而修改字段则包括了读入的图像信息 `img`，以及图片当前尺寸 `img_shape`，图片原始尺寸 `ori_shape` 等图片属性。
+
+```python
+@TRANSFORMS.register_module()
+class LoadImageFromFile(MMCV_LoadImageFromFile):
+    # 在每一个数据变换方法的头部，我们都提供了详细的代码注释。
+    """Load an image from file.
+
+    Required Keys:
+
+    - img_path
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - ori_shape
+    """
+```
+
+```{note}
+在 MMOCR 的数据流水线中，图像及标签等信息被统一保存在字典中。通过统一的字段名，我们可以在不同的数据变换方法间灵活地传递数据。因此，了解 MMOCR 中常用的约定字段名是非常重要的。
+```
+
+为方便用户查询，下表列出了 MMOCR 中各数据转换（Data Transform）类常用的字段约定和说明。
+
+|                  |                                   |                                                                                                                                      |
+| ---------------- | --------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
+| 字段             | 类型                              | 说明                                                                                                                                 |
+| img              | `np.array(dtype=np.uint8)`        | 图像信息，形状为 `(h, w, c)`。                                                                                                       |
+| img_shape        | `tuple(int, int)`                 | 当前图像尺寸 `(h, w)`。                                                                                                              |
+| ori_shape        | `tuple(int, int)`                 | 图像在初始化时的尺寸 `(h, w)`。                                                                                                      |
+| scale            | `tuple(int, int)`                 | 存放用户在 Resize 系列数据变换（Transform）中指定的目标图像尺寸 `(h, w)`。注意：该值未必与变换后的实际图像尺寸相符。                 |
+| scale_factor     | `tuple(float, float)`             | 存放用户在 Resize 系列数据变换（Transform）中指定的目标图像缩放因子 `(w_scale, h_scale)`。注意：该值未必与变换后的实际图像尺寸相符。 |
+| keep_ratio       | `bool`                            | 是否按等比例对图像进行缩放。                                                                                                         |
+| flip             | `bool`                            | 图像是否被翻转。                                                                                                                     |
+| flip_direction   | `str`                             | 翻转方向。可选项为 `horizontal`, `vertical`, `diagonal`。                                                                            |
+| gt_bboxes        | `np.array(dtype=np.float32)`      | 文本实例边界框的真实标签。                                                                                                           |
+| gt_polygons      | `list[np.array(dtype=np.float32)` | 文本实例边界多边形的真实标签。                                                                                                       |
+| gt_bboxes_labels | `np.array(dtype=np.int64)`        | 文本实例对应的类别标签。在 MMOCR 中通常为 0，代指 "text" 类别。                                                                      |
+| gt_texts         | `list[str]`                       | 与文本实例对应的字符串标注。                                                                                                         |
+| gt_ignored       | `np.array(dtype=np.bool_)`        | 是否要在计算目标时忽略该实例（用于检测任务中）。                                                                                     |
+
+## 数据读取 - loading.py
+
+数据读取类主要实现了不同文件格式、后端读取图片及加载标注信息的功能。目前，MMOCR 内部共实现了以下数据读取类的 Data Transforms：
+
+|                    |                                                           |                                                                |                                                                 |
+| ------------------ | --------------------------------------------------------- | -------------------------------------------------------------- | --------------------------------------------------------------- |
+| 数据转换类名称     | 需求字段                                                  | 修改/添加字段                                                  | 说明                                                            |
+| LoadImageFromFile  | `img_path`                                                | `img`<br>`img_shape`<br>`ori_shape`                            | 从图片路径读取图片，支持多种文件存储后端（如 `disk`, `http`, `petrel` 等）及图片解码后端（如 `cv2`, `turbojpeg`, `pillow`, `tifffile`等）。 |
+| LoadOCRAnnotations | `bbox`<br>`bbox_label`<br>`polygon`<br>`ignore`<br>`text` | `gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_polygons`<br>`gt_ignored`<br>`gt_texts` | 解析 OCR 任务所需的标注信息。                                   |
+| LoadKIEAnnotations | `bboxes` `bbox_labels` `edge_labels`<br>`texts`           | `gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_edge_labels`<br>`gt_texts`<br>`ori_shape` | 解析 KIE 任务所需的标注信息。                                   |
+
+## 数据增强 - xxx_transforms.py
+
+数据增强是文本检测、识别等任务中必不可少的流程之一。目前，MMOCR 中共实现了数十种文本领域内常用的数据增强模块，依据其任务类型，分别为通用 OCR 数据增强模块 [ocr_transforms.py](/mmocr/datasets/transforms/ocr_transforms.py)，文本检测数据增强模块 [textdet_transforms.py](/mmocr/datasets/transforms/textdet_transforms.py)，以及文本识别数据增强模块 [textrecog_transforms.py](/mmocr/datasets/transforms/textrecog_transforms.py)。
+
+具体而言，`ocr_transforms.py` 中实现了随机剪裁、随机旋转等各任务通用的数据增强模块：
+
+|                |                                                                |                                                                |                                                                |
+| -------------- | -------------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------- |
+| 数据转换类名称 | 需求字段                                                       | 修改/添加字段                                                  | 说明                                                           |
+| RandomCrop     | `img`<br>`gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_polygons`<br>`gt_ignored`<br>`gt_texts` (optional) | `img`<br>`img_shape`<br>`gt_bboxes`<br>`gt_bboxes_labels`<br>`gt_polygons`<br>`gt_ignored`<br>`gt_texts` (optional) | 随机裁剪，并确保裁剪后的图片至少包含一个文本实例。可选参数为 `min_side_ratio`，用以控制裁剪图片的短边占原始图片的比例，默认值为 `0.4`。 |
+| RandomRotate   | `img`<br>`img_shape`<br>`gt_bboxes` (optional)<br>`gt_polygons` (optional) | `img`<br>`img_shape`<br>`gt_bboxes` (optional)<br>`gt_polygons` (optional)<br>`rotated_angle` | 随机旋转，并可选择对旋转后图像的黑边进行填充。                 |
+|                |                                                                |                                                                |                                                                |
+
+`textdet_transforms.py` 则实现了文本检测任务中常用的数据增强模块：
+
+|                   |                                       |                                                                     |                                                                      |
+| ----------------- | ------------------------------------- | ------------------------------------------------------------------- | -------------------------------------------------------------------- |
+| 数据转换类名称    | 需求字段                              | 修改/添加字段                                                       | 说明                                                                 |
+| RandomFlip        | `img`<br>`gt_bboxes`<br>`gt_polygons` | `img`<br>`gt_bboxes`<br>`gt_polygons`<br>`flip`<br>`flip_direction` | 随机翻转，支持水平、垂直和对角三种方向的图像翻转。默认使用水平翻转。 |
+| FixInvalidPolygon | `gt_polygons`<br>`gt_ignored`         | `gt_polygons`<br>`gt_ignored`                                       | 自动修复或忽略非法多边形标注。                                       |
+
+`textrecog_transforms.py` 中实现了文本识别任务中常用的数据增强模块：
+
+|                 |          |                                                                   |                                                                                                            |
+| --------------- | -------- | ----------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
+| 数据转换类名称  | 需求字段 | 修改/添加字段                                                     | 说明                                                                                                       |
+| RescaleToHeight | `img`    | `img`<br>`img_shape`<br>`scale`<br>`scale_factor`<br>`keep_ratio` | 缩放图像至指定高度，并尽可能保持长宽比不变。当 `min_width` 及 `max_width` 被指定时，长宽比则可能会被改变。 |
+|                 |          |                                                                   |                                                                                                            |
+
+```{warning}
+以上表格仅选择性地对部分数据增强方法作简要介绍，更多数据增强方法介绍请参考[API 文档](../api.rst)或阅读代码内的文档注释。
+```
+
+## 数据格式化 - formatting.py
+
+数据格式化负责将图像、真实标签以及其它常用信息等打包成一个字典。不同的任务通常依赖于不同的数据格式化数据变换类。例如：
+
+|                     |          |               |                                            |
+| ------------------- | -------- | ------------- | ------------------------------------------ |
+| 数据转换类名称      | 需求字段 | 修改/添加字段 | 说明                                       |
+| PackTextDetInputs   | -        | -             | 用于打包文本检测任务所需要的输入信息。     |
+| PackTextRecogInputs | -        | -             | 用于打包文本识别任务所需要的输入信息。     |
+| PackKIEInputs       | -        | -             | 用于打包关键信息抽取任务所需要的输入信息。 |
+
+## 跨库数据适配器 - adapters.py
+
+跨库数据适配器打通了 MMOCR 与其他 OpenMMLab 系列算法库如 [MMDetection](https://github.com/open-mmlab/mmdetection) 之间的数据格式，使得跨项目调用其它开源算法库的配置文件及算法成为了可能。目前，MMOCR 实现了 `MMDet2MMOCR` 以及 `MMOCR2MMDet`，使得数据可以在 MMDetection 与 MMOCR 的格式之间自由转换；借助这些适配转换器，用户可以在 MMOCR 算法库内部轻松调用任何 MMDetection 已支持的检测算法，并在 OCR 相关数据集上进行训练。例如，我们以 Mask R-CNN 为例提供了[教程](#todo)，展示了如何在 MMOCR 中使用 MMDetection 的检测算法训练文本检测器。
+
+|                |                                              |                               |                                                |
+| -------------- | -------------------------------------------- | ----------------------------- | ---------------------------------------------- |
+| 数据转换类名称 | 需求字段                                     | 修改/添加字段                 | 说明                                           |
+| MMDet2MMOCR    | `gt_masks` `gt_ignore_flags`                 | `gt_polygons`<br>`gt_ignored` | 将 MMDet 中采用的字段转换为对应的 MMOCR 字段。 |
+| MMOCR2MMDet    | `img_shape`<br>`gt_polygons`<br>`gt_ignored` | `gt_masks` `gt_ignore_flags`  | 将 MMOCR 中采用的字段转换为对应的 MMDet 字段。 |
+
+## 包装类 - wrappers.py
+
+为了方便用户在 MMOCR 内部无缝调用常用的 CV 算法库，我们在 wrappers.py 中提供了相应的包装类。其主要打通了 MMOCR 与其它第三方算法库之间的数据格式和转换标准，使得用户可以在 MMOCR 的配置文件内直接配置使用这些第三方库提供的数据变换方法。目前支持的包装类有：
+
+|                    |                                                              |                                                               |                                                               |
+| ------------------ | ------------------------------------------------------------ | ------------------------------------------------------------- | ------------------------------------------------------------- |
+| 数据转换类名称     | 需求字段                                                     | 修改/添加字段                                                 | 说明                                                          |
+| ImgAugWrapper      | `img`<br>`gt_polygons` (optional for text recognition)<br>`gt_bboxes` (optional for text recognition)<br>`gt_bboxes_labels` (optional for text recognition)<br>`gt_ignored` (optional for text recognition)<br>`gt_texts` (optional) | `img`<br>`gt_polygons` (optional for text recognition)<br>`gt_bboxes` (optional for text recognition)<br>`gt_bboxes_labels` (optional for text recognition)<br>`gt_ignored` (optional for text recognition)<br>`img_shape` (optional)<br>`gt_texts` (optional) | [ImgAug](https://github.com/aleju/imgaug) 包装类，用于打通 ImgAug 与 MMOCR 的数据格式及配置，方便用户调用 ImgAug 实现的一系列数据增强方法。 |
+| TorchVisionWrapper | `img`                                                        | `img`<br>`img_shape`                                          | [TorchVision](https://github.com/pytorch/vision) 包装类，用于打通 TorchVision 与 MMOCR 的数据格式及配置，方便用户调用 `torchvision.transforms` 中实现的一系列数据变换方法。 |
+
+### `ImgAugWrapper` 示例
+
+例如，在原生的 ImgAug 中，我们可以按照如下代码定义一个 `Sequential` 类型的数据增强流程，对图像分别进行随机翻转、随机旋转和随机缩放：
+
+```python
+import imgaug.augmenters as iaa
+
+aug = iaa.Sequential(
+  iaa.Fliplr(0.5),                # 以概率 0.5 进行水平翻转
+  iaa.Affine(rotate=(-10, 10)),   # 随机旋转 -10 到 10 度
+  iaa.Resize((0.5, 3.0))          # 随机缩放到 50% 到 300% 的尺寸
+)
+```
+
+而在 MMOCR 中，我们可以通过 `ImgAugWrapper` 包装类，将上述数据增强流程直接配置到 `train_pipeline` 中：
+
+```python
+dict(
+  type='ImgAugWrapper',
+  args=[
+    ['Fliplr', 0.5],
+    dict(cls='Affine', rotate=[-10, 10]),
+    ['Resize', [0.5, 3.0]],
+  ]
+)
+```
+
+其中，`args` 参数接收一个列表，列表中的每个元素可以是一个列表，也可以是一个字典。如果是列表，则列表的第一个元素为 `imgaug.augmenters` 中的类名，后面的元素为该类的初始化参数；如果是字典，则字典的 `cls` 键对应 `imgaug.augmenters` 中的类名，其他键值对则对应该类的初始化参数。
+
+### `TorchVisionWrapper` 示例
+
+例如，在原生的 TorchVision 中，我们可以按照如下代码定义一个 `Compose` 类型的数据变换流程，对图像进行色彩抖动：
+
+```python
+import torchvision.transforms as transforms
+
+aug = transforms.Compose([
+  transforms.ColorJitter(
+    brightness=32.0 / 255,  # 亮度抖动范围
+    saturation=0.5)         # 饱和度抖动范围
+])
+```
+
+而在 MMOCR 中，我们可以通过 `TorchVisionWrapper` 包装类，将上述数据变换流程直接配置到 `train_pipeline` 中：
+
+```python
+dict(
+  type='TorchVisionWrapper',
+  op='ColorJitter',
+  brightness=32.0 / 255,
+  saturation=0.5
+)
+```
+
+其中，`op` 参数为 `torchvision.transforms` 中的类名，后面的参数则对应该类的初始化参数。
diff --git a/mmocr-dev-1.x/docs/zh_cn/basic_concepts/visualizers.md b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/visualizers.md
new file mode 100644
index 0000000000000000000000000000000000000000..323dc0a28aa7cb128dc39003b257802022cc933c
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/basic_concepts/visualizers.md
@@ -0,0 +1,3 @@
+# 可视化组件\[待更新\]
+
+待更新
diff --git a/mmocr-dev-1.x/docs/zh_cn/conf.py b/mmocr-dev-1.x/docs/zh_cn/conf.py
new file mode 100644
index 0000000000000000000000000000000000000000..dc1980716f7cc71270220b7d82ef3c455b4e5895
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/conf.py
@@ -0,0 +1,173 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+# Configuration file for the Sphinx documentation builder.
+#
+# This file only contains a selection of the most common options. For a full
+# list see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+
+import os
+import subprocess
+import sys
+
+import pytorch_sphinx_theme
+
+sys.path.insert(0, os.path.abspath('../../'))
+
+# -- Project information -----------------------------------------------------
+
+project = 'MMOCR'
+copyright = '2020-2030, OpenMMLab'
+author = 'OpenMMLab'
+
+# The full version, including alpha/beta/rc tags
+version_file = '../../mmocr/version.py'
+with open(version_file) as f:
+    exec(compile(f.read(), version_file, 'exec'))
+__version__ = locals()['__version__']
+release = __version__
+
+# -- General configuration ---------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.napoleon',
+    'sphinx.ext.viewcode',
+    'sphinx_markdown_tables',
+    'sphinx_copybutton',
+    'myst_parser',
+    'sphinx.ext.intersphinx',
+    'sphinx.ext.autodoc.typehints',
+    'sphinx.ext.autosummary',
+    'sphinx.ext.autosectionlabel',
+    'sphinx_tabs.tabs',
+]
+autodoc_typehints = 'description'
+
+autodoc_mock_imports = ['mmcv._ext']
+autosummary_generate = True  # Turn on sphinx.ext.autosummary
+# Ignore >>> when copying code
+copybutton_prompt_text = r'>>> |\.\.\. '
+copybutton_prompt_is_regexp = True
+
+myst_enable_extensions = ['colon_fence']
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+#
+source_suffix = {
+    '.rst': 'restructuredtext',
+    '.md': 'markdown',
+}
+
+# The master toctree document.
+master_doc = 'index'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+# html_theme = 'sphinx_rtd_theme'
+html_theme = 'pytorch_sphinx_theme'
+html_theme_path = [pytorch_sphinx_theme.get_html_theme_path()]
+html_theme_options = {
+    'logo_url':
+    'https://mmocr.readthedocs.io/zh_CN/dev-1.x/',
+    'menu': [
+        {
+            'name':
+            '教程 Notebook',
+            'url':
+            'https://colab.research.google.com/github/open-mmlab/mmocr/blob/'
+            'dev-1.x/demo/tutorial.ipynb'
+        },
+        {
+            'name': 'GitHub',
+            'url': 'https://github.com/open-mmlab/mmocr'
+        },
+        {
+            'name':
+            '上游库',
+            'children': [
+                {
+                    'name': 'MMEngine',
+                    'url': 'https://github.com/open-mmlab/mmengine',
+                    'description': '深度学习模型训练基础库'
+                },
+                {
+                    'name': 'MMCV',
+                    'url': 'https://github.com/open-mmlab/mmcv',
+                    'description': '基础视觉库'
+                },
+                {
+                    'name': 'MMDetection',
+                    'url': 'https://github.com/open-mmlab/mmdetection',
+                    'description': '目标检测工具箱'
+                },
+            ]
+        },
+    ],
+    # Specify the language of shared menu
+    'menu_lang':
+    'cn',
+}
+
+language = 'zh_CN'
+
+master_doc = 'index'
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+html_css_files = [
+    'https://cdn.datatables.net/1.13.2/css/dataTables.bootstrap5.min.css',
+    'css/readthedocs.css'
+]
+html_js_files = [
+    'https://cdn.datatables.net/1.13.2/js/jquery.dataTables.min.js',
+    'https://cdn.datatables.net/1.13.2/js/dataTables.bootstrap5.min.js',
+    'js/collapsed.js',
+    'js/table.js',
+]
+
+myst_heading_anchors = 4
+
+# Configuration for intersphinx
+intersphinx_mapping = {
+    'python': ('https://docs.python.org/3', None),
+    'numpy': ('https://numpy.org/doc/stable', None),
+    'torch': ('https://pytorch.org/docs/stable/', None),
+    'mmcv': ('https://mmcv.readthedocs.io/zh_CN/2.x/', None),
+    'mmengine': ('https://mmengine.readthedocs.io/zh_CN/latest/', None),
+    'mmdetection': ('https://mmdetection.readthedocs.io/zh_CN/dev-3.x/', None),
+}
+
+
+def builder_inited_handler(app):
+    subprocess.run(['./cp_origin_docs.sh'])
+    subprocess.run(['./merge_docs.sh'])
+    subprocess.run(['./stats.py'])
+    subprocess.run(['./dataset_zoo.py'])
+    subprocess.run(['./project_zoo.py'])
+
+
+def setup(app):
+    app.connect('builder-inited', builder_inited_handler)
diff --git a/mmocr-dev-1.x/docs/zh_cn/contact.md b/mmocr-dev-1.x/docs/zh_cn/contact.md
new file mode 100644
index 0000000000000000000000000000000000000000..aafea7776c1b499da08d3e1ea47f25043e1a254b
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/contact.md
@@ -0,0 +1,18 @@
+## 欢迎加入 OpenMMLab 社区
+
+扫描下方的二维码可关注 OpenMMLab 团队的 [知乎官方账号](https://www.zhihu.com/people/openmmlab)，加入 OpenMMLab 团队的 [官方交流 QQ 群](https://jq.qq.com/?_wv=1027&k=aCvMxdr3)，或通过添加微信“Open小喵Lab”加入官方交流微信群， 或者加入我们的 [Slack 社区](https://join.slack.com/t/mmocrworkspace/shared_invite/zt-1ifqhfla8-yKnLO_aKhVA2h71OrK8GZw)
+
+<div align="center">
+<img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/zhihu_qrcode.jpg" height="400" />  <img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/qq_group_qrcode.jpg" height="400" />  <img src="https://raw.githubusercontent.com/open-mmlab/mmcv/master/docs/en/_static/wechat_qrcode.jpg" height="400" />
+</div>
+
+我们会在 OpenMMLab 社区为大家
+
+- 📢 分享 AI 框架的前沿核心技术
+- 💻 解读 PyTorch 常用模块源码
+- 📰 发布 OpenMMLab 的相关新闻
+- 🚀 介绍 OpenMMLab 开发的前沿算法
+- 🏃 获取更高效的问题答疑和意见反馈
+- 🔥 提供与各行各业开发者充分交流的平台
+
+干货满满 📘，等你来撩 💗，OpenMMLab 社区期待您的加入 👬
diff --git a/mmocr-dev-1.x/docs/zh_cn/cp_origin_docs.sh b/mmocr-dev-1.x/docs/zh_cn/cp_origin_docs.sh
new file mode 100755
index 0000000000000000000000000000000000000000..1e728323684a0aad1571eb392871d6c5de6644fc
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/cp_origin_docs.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+# Copy *.md files from docs/ if it doesn't have a Chinese translation
+
+for filename in $(find ../en/ -name '*.md' -printf "%P\n");
+do
+    mkdir -p $(dirname $filename)
+    cp -n ../en/$filename ./$filename
+done
diff --git a/mmocr-dev-1.x/docs/zh_cn/dataset_zoo.py b/mmocr-dev-1.x/docs/zh_cn/dataset_zoo.py
new file mode 100755
index 0000000000000000000000000000000000000000..2d5f22604d2154068305f5bedd43e06b3a62f906
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/dataset_zoo.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python
+import os
+import os.path as osp
+import re
+
+import yaml
+
+dataset_zoo_path = '../../dataset_zoo'
+datasets = os.listdir(dataset_zoo_path)
+datasets.sort()
+
+table = '# 支持数据集一览\n'
+table += '## 支持的数据集\n'
+table += '| 数据集名称 | 文本检测 | 文本识别 | 端到端文本检测识别 | 关键信息抽取 |\n' \
+         '|----------|---------|--------|------------------|-----------|\n'
+details = '## 数据集详情\n'
+
+for dataset in datasets:
+    meta = yaml.safe_load(
+        open(osp.join(dataset_zoo_path, dataset, 'metafile.yml')))
+    dataset_name = meta['Name']
+    detail_link = re.sub('[^A-Za-z0-9- ]', '',
+                         dataset_name).replace(' ', '-').lower()
+    paper = meta['Paper']
+    data = meta['Data']
+
+    table += '| [{}](#{}) | {} | {} | {} | {} |\n'.format(
+        dataset,
+        detail_link,
+        '✓' if 'textdet' in data['Tasks'] else '',
+        '✓' if 'textrecog' in data['Tasks'] else '',
+        '✓' if 'textspotting' in data['Tasks'] else '',
+        '✓' if 'kie' in data['Tasks'] else '',
+    )
+
+    details += '### {}\n'.format(dataset_name)
+    details += "> \"{}\", *{}*, {}. [PDF]({})\n\n".format(
+        paper['Title'], paper['Venue'], paper['Year'], paper['URL'])
+    # Basic Info
+    details += 'A. 数据集基础信息\n'
+    details += ' - 官方网址: [{}]({})\n'.format(dataset, data['Website'])
+    details += ' - 发布年份: {}\n'.format(paper['Year'])
+    details += ' - 语言: {}\n'.format(data['Language'])
+    details += ' - 场景: {}\n'.format(data['Scene'])
+    details += ' - 标注粒度: {}\n'.format(data['Granularity'])
+    details += ' - 支持任务: {}\n'.format(data['Tasks'])
+    details += ' - 数据集许可证: [{}]({})\n\n'.format(data['License']['Type'],
+                                                data['License']['Link'])
+
+    # Format
+    details += '<details> <summary>B. 标注格式</summary>\n\n</br>'
+    sample_path = osp.join(dataset_zoo_path, dataset, 'sample_anno.md')
+    if osp.exists(sample_path):
+        with open(sample_path, 'r') as f:
+            samples = f.readlines()
+            samples = ''.join(samples)
+            details += samples
+    details += '</details>\n\n</br>'
+
+    # Reference
+    details += 'C. 参考文献\n'
+    details += '```bibtex\n{}\n```\n'.format(paper['BibTeX'])
+
+datasetzoo = table + details
+
+with open('user_guides/data_prepare/datasetzoo.md', 'w') as f:
+    f.write(datasetzoo)
diff --git a/mmocr-dev-1.x/docs/zh_cn/docutils.conf b/mmocr-dev-1.x/docs/zh_cn/docutils.conf
new file mode 100644
index 0000000000000000000000000000000000000000..0c00c84688701117f231fd0c8ec295fb747b7d8f
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/docutils.conf
@@ -0,0 +1,2 @@
+[html writers]
+table_style: colwidths-auto
diff --git a/mmocr-dev-1.x/docs/zh_cn/get_started/install.md b/mmocr-dev-1.x/docs/zh_cn/get_started/install.md
new file mode 100644
index 0000000000000000000000000000000000000000..a0f94424eba315fcd888b9fc3b85bb0496ca4887
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/get_started/install.md
@@ -0,0 +1,243 @@
+# 安装
+
+## 环境依赖
+
+- Linux | Windows | macOS
+- Python 3.7
+- PyTorch 1.6 或更高版本
+- torchvision 0.7.0
+- CUDA 10.1
+- NCCL 2
+- GCC 5.4.0 或更高版本
+
+## 准备环境
+
+```{note}
+如果你已经在本地安装了 PyTorch，请直接跳转到[安装步骤](#安装步骤)。
+```
+
+**第一步** 下载并安装 [Miniconda](https://docs.conda.io/en/latest/miniconda.html).
+
+**第二步** 创建并激活一个 conda 环境：
+
+```shell
+conda create --name openmmlab python=3.8 -y
+conda activate openmmlab
+```
+
+**第三步** 依照[官方指南](https://pytorch.org/get-started/locally/)，安装 PyTorch。
+
+````{tabs}
+
+```{code-tab} shell GPU 平台
+conda install pytorch torchvision -c pytorch
+```
+
+```{code-tab} shell CPU 平台
+conda install pytorch torchvision cpuonly -c pytorch
+```
+
+````
+
+## 安装步骤
+
+我们建议大多数用户采用我们的推荐方式安装 MMOCR。倘若你需要更灵活的安装过程，则可以参考[自定义安装](#自定义安装)一节。
+
+### 推荐步骤
+
+**第一步** 使用 [MIM](https://github.com/open-mmlab/mim) 安装 [MMEngine](https://github.com/open-mmlab/mmengine)， [MMCV](https://github.com/open-mmlab/mmcv) 和 [MMDetection](https://github.com/open-mmlab/mmdetection)。
+
+```shell
+pip install -U openmim
+mim install mmengine
+mim install mmcv
+mim install mmdet
+```
+
+**第二步** 安装 MMOCR.
+
+若你需要直接运行 MMOCR 或在其基础上进行开发，则通过源码安装（推荐）。
+
+如果你将 MMOCR 作为一个外置依赖库使用，则可以通过 MIM 安装。
+
+`````{tabs}
+
+````{group-tab} 源码安装
+
+```shell
+git clone https://github.com/open-mmlab/mmocr.git
+cd mmocr
+pip install -v -e .
+# "-v" 会让安装过程产生更详细的输出
+# "-e" 会以可编辑的方式安装该代码库，你对该代码库所作的任何更改都会立即生效
+```
+
+````
+
+````{group-tab} MIM 安装
+
+```shell
+
+mim install mmocr
+
+```
+
+````
+
+`````
+
+**第三步（可选）** 如果你需要使用与 `albumentations` 有关的变换（如 ABINet 数据流水线中的 `Albu`），或需要构建文档、运行单元测试的依赖，请使用以下命令安装依赖：
+
+`````{tabs}
+
+````{group-tab} 源码安装
+
+```shell
+# 安装 albu
+pip install -r requirements/albu.txt
+# 安装文档、测试等依赖
+pip install -r requirements.txt
+```
+
+````
+
+````{group-tab} MIM 安装
+
+```shell
+pip install albumentations>=1.1.0 --no-binary qudida,albumentations
+```
+
+````
+
+`````
+
+```{note}
+
+我们建议在安装 `albumentations` 之后检查当前环境，确保 `opencv-python` 和 `opencv-python-headless` 没有同时被安装，否则有可能会产生一些无法预知的错误。如果它们不巧同时存在于环境当中，请卸载 `opencv-python-headless` 以确保 MMOCR 的可视化工具可以正常运行。
+
+查看 [`albumentations` 的官方文档](https://albumentations.ai/docs/getting_started/installation/#note-on-opencv-dependencies)以获知详情。
+
+```
+
+### 检验
+
+你可以通过运行一个简单的推理任务来检验 MMOCR 的安装是否成功。
+
+`````{tabs}
+
+````{tab} Python
+
+在 Python 中运行以下代码：
+
+```python
+>>> from mmocr.apis import MMOCRInferencer
+>>> ocr = MMOCRInferencer(det='DBNet', rec='CRNN')
+>>> ocr('demo/demo_text_ocr.jpg', show=True, print_result=True)
+```
+````
+
+````{tab} Shell
+
+如果你是通过源码安装的 MMOCR，你可以在 MMOCR 的根目录下运行以下命令：
+
+```shell
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec CRNN --show --print-result
+```
+````
+
+`````
+
+若 MMOCR 的安装无误，你在这一节完成后应当能看到以图片和文字形式表示的识别结果：
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/24622904/187825445-d30cbfa6-5549-4358-97fe-245f08f4ed94.jpg" height="250"/>
+</div>
+<br/ >
+
+```bash
+# 识别结果
+{'predictions': [{'rec_texts': ['cbanks', 'docecea', 'grouf', 'pwate', 'chobnsonsg', 'soxee', 'oeioh', 'c', 'sones', 'lbrandec', 'sretalg', '11', 'to8', 'round', 'sale', 'year',
+'ally', 'sie', 'sall'], 'rec_scores': [...], 'det_polygons': [...], 'det_scores':
+[...]}]}
+```
+
+```{note}
+如果你在没有 GUI 的服务器上运行 MMOCR，或者通过没有开启 X11 转发的 SSH 隧道运行 MMOCR，你可能无法看到弹出的窗口。
+```
+
+## 自定义安装
+
+### CUDA 版本
+
+安装 PyTorch 时，需要指定 CUDA 版本。如果您不清楚选择哪个，请遵循我们的建议：
+
+- 对于 Ampere 架构的 NVIDIA GPU，例如 GeForce 30 series 以及 NVIDIA A100，CUDA 11 是必需的。
+- 对于更早的 NVIDIA GPU，CUDA 11 是向前兼容的，但 CUDA 10.2 能够提供更好的兼容性，也更加轻量。
+
+请确保你的 GPU 驱动版本满足最低的版本需求，参阅[这张表](https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html#cuda-major-component-versions__table-cuda-toolkit-driver-versions)。
+
+```{note}
+如果按照我们的最佳实践进行安装，CUDA 运行时库就足够了，因为我们提供相关 CUDA 代码的预编译，你不需要进行本地编译。
+但如果你希望从源码进行 MMCV 的编译，或是进行其他 CUDA 算子的开发，那么就必须安装完整的 CUDA 工具链，参见
+[NVIDIA 官网](https://developer.nvidia.com/cuda-downloads)，另外还需要确保该 CUDA 工具链的版本与 PyTorch 安装时
+的配置相匹配（如用 `conda install` 安装 PyTorch 时指定的 cudatoolkit 版本）。
+```
+
+### 不使用 MIM 安装 MMCV
+
+MMCV 包含 C++ 和 CUDA 扩展，因此其对 PyTorch 的依赖比较复杂。MIM 会自动解析这些
+依赖，选择合适的 MMCV 预编译包，使安装更简单，但它并不是必需的。
+
+要使用 pip 而不是 MIM 来安装 MMCV，请遵照 [MMCV 安装指南](https://mmcv.readthedocs.io/zh_CN/latest/get_started/installation.html)。
+它需要你用指定 url 的形式手动指定对应的 PyTorch 和 CUDA 版本。
+
+举个例子，如下命令将会安装基于 PyTorch 1.10.x 和 CUDA 11.3 编译的 mmcv-full。
+
+```shell
+pip install 'mmcv>=2.0.0rc1' -f https://download.openmmlab.com/mmcv/dist/cu113/torch1.10/index.html
+```
+
+### 在 CPU 环境中安装
+
+MMOCR 可以仅在 CPU 环境中安装，在 CPU 模式下，你可以完成训练（需要 MMCV 版本 >= 1.4.4）、测试和模型推理等所有操作。
+
+在 CPU 模式下，MMCV 中的以下算子将不可用：
+
+- Deformable Convolution
+- Modulated Deformable Convolution
+- ROI pooling
+- SyncBatchNorm
+
+如果你尝试使用用到了以上算子的模型进行训练、测试或推理，程序将会报错。以下为可能受到影响的模型列表：
+
+|                          算子                           |                          模型                           |
+| :-----------------------------------------------------: | :-----------------------------------------------------: |
+| Deformable Convolution/Modulated Deformable Convolution | DBNet (r50dcnv2), DBNet++ (r50dcnv2), FCENet (r50dcnv2) |
+|                      SyncBatchNorm                      |                      PANet, PSENet                      |
+
+### 通过 Docker 使用 MMOCR
+
+我们提供了一个 [Dockerfile](https://github.com/open-mmlab/mmocr/blob/master/docker/Dockerfile) 文件以建立 docker 镜像 。
+
+```shell
+# build an image with PyTorch 1.6, CUDA 10.1
+docker build -t mmocr docker/
+```
+
+使用以下命令运行。
+
+```shell
+docker run --gpus all --shm-size=8g -it -v {实际数据目录}:/mmocr/data mmocr
+```
+
+## 对 MMEngine、MMCV 和 MMDetection 的版本依赖
+
+为了确保代码实现的正确性，MMOCR 每个版本都有可能改变对 MMEngine、MMCV 和 MMDetection 版本的依赖。请根据以下表格确保版本之间的相互匹配。
+
+| MMOCR          | MMEngine                    | MMCV                       | MMDetection                 |
+| -------------- | --------------------------- | -------------------------- | --------------------------- |
+| dev-1.x        | 0.7.1 \<= mmengine \< 1.0.0 | 2.0.0rc4 \<= mmcv \< 2.1.0 | 3.0.0rc5 \<= mmdet \< 3.1.0 |
+| 1.0.0          | 0.7.1 \<= mmengine \< 1.0.0 | 2.0.0rc4 \<= mmcv \< 2.1.0 | 3.0.0rc5 \<= mmdet \< 3.1.0 |
+| 1.0.0rc6       | 0.6.0 \<= mmengine \< 1.0.0 | 2.0.0rc4 \<= mmcv \< 2.1.0 | 3.0.0rc5 \<= mmdet \< 3.1.0 |
+| 1.0.0rc\[4-5\] | 0.1.0 \<= mmengine \< 1.0.0 | 2.0.0rc1 \<= mmcv \< 2.1.0 | 3.0.0rc0 \<= mmdet \< 3.1.0 |
+| 1.0.0rc\[0-3\] | 0.0.0 \<= mmengine \< 0.2.0 | 2.0.0rc1 \<= mmcv \< 2.1.0 | 3.0.0rc0 \<= mmdet \< 3.1.0 |
diff --git a/mmocr-dev-1.x/docs/zh_cn/get_started/overview.md b/mmocr-dev-1.x/docs/zh_cn/get_started/overview.md
new file mode 100644
index 0000000000000000000000000000000000000000..02dc798b910fc0342ceaf2e64a95e8e32b8d9621
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/get_started/overview.md
@@ -0,0 +1,18 @@
+# 概览
+
+MMOCR 是一个基于 [PyTorch](https://pytorch.org/) 和 [MMDetection](https://github.com/open-mmlab/mmdetection) 的开源工具箱，支持众多 OCR 相关的模型，涵盖了文本检测、文本识别以及关键信息提取等多个主要方向。它还支持了大多数流行的学术数据集，并提供了许多实用工具帮助用户对数据集和模型进行多方面的探索和调试，助力优质模型的产出和落地。它具有以下特点：
+
+- **全流程，多模型**：支持了全流程的 OCR 任务，包括文本检测、文本识别及关键信息提取的各种最新模型。
+- **模块化设计**：MMOCR 的模块化设计使用户可以按需定义及复用模型中的各个模块。
+- **实用工具众多**：MMOCR 提供了全面的可视化工具、验证工具和性能评测工具，帮助用户对模型进行排错、调优或客观比较。
+- **由 [OpenMMLab](https://openmmlab.com/) 强力驱动**：与家族内的其它算法库一样，MMOCR 遵循着 OpenMMLab 严谨的开发准则和接口约定，极大地降低了用户切换各算法库时的学习成本。同时，MMOCR 也可以非常便捷地与家族内其他算法库跨库联动，从而满足用户跨领域研究和落地的需求。
+
+随着 OpenMMLab 家族架构的整体升级， MMOCR 也相应地进行了大幅度的升级和修改。在这个大版本的更新中，MMOCR 中大量的冗余代码和重复实现被移除，多个关键方法的运行效率得到了提升，且整体框架设计上变得更为统一。考虑到该版本相较于 0.x 存在一些后向不兼容的修改，我们准备了一份详细的[迁移指南](../migration/overview.md)，并在里面列出了新版本所作出的所有改动和迁移所需的步骤，力求帮助熟悉旧版框架的用户尽快完成升级。尽管这可能需要一定时间，但我们相信由 MMOCR 和 OpenMMLab 生态系统整体带来的新特性会让这一切变得尤为值得。😊
+
+接下来，请根据实际需求选择你需要阅读的章节。
+
+- 我们推荐初学者通过【[快速运行](quick_run.md)】来熟悉 MMOCR 的基本用法，并从【用户指南】提供的案例中逐步掌握 MMOCR 的用法。
+- 中高级开发者则可以从【基础概念】中了解各个组件的背景、约定和推荐实现。
+- 请阅读 [FAQ](faq.md) 来查找常见问题的答案。
+- 同时，如果你在文档中未能找到需要的答案，欢迎通过 [issue](https://github.com/open-mmlab/mmocr/issues) 进行反馈。
+- 我们也欢迎每一位用户成为贡献者！请阅读 [贡献指南](../notes/contribution_guide.md) 来了解如何为 MMOCR 做出贡献。
diff --git a/mmocr-dev-1.x/docs/zh_cn/get_started/quick_run.md b/mmocr-dev-1.x/docs/zh_cn/get_started/quick_run.md
new file mode 100644
index 0000000000000000000000000000000000000000..bcca73704d250176b3e911ba0aac55933454e12e
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/get_started/quick_run.md
@@ -0,0 +1,201 @@
+# 快速运行
+
+这个章节会介绍 MMOCR 的一些基本功能。我们假设你已经[从源码安装了 MMOCR](install.md#best-practices)。此外，你也可以通过[教程 Notebook](https://colab.research.google.com/github/open-mmlab/mmocr/blob/dev-1.x/demo/tutorial.ipynb)来了解如何在交互式环境下实现推理、训练和测试。
+
+## 推理
+
+在 MMOCR 的根目录下运行以下命令：
+
+```shell
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec CRNN --show --print-result
+```
+
+你可以看到弹出的预测结果，以及在控制台中打印出的推理结果。
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/24622904/187825445-d30cbfa6-5549-4358-97fe-245f08f4ed94.jpg" height="250"/>
+</div>
+<br/ >
+
+```bash
+# 识别结果
+{'predictions': [{'rec_texts': ['cbanks', 'docecea', 'grouf', 'pwate', 'chobnsonsg', 'soxee', 'oeioh', 'c', 'sones', 'lbrandec', 'sretalg', '11', 'to8', 'round', 'sale', 'year',
+'ally', 'sie', 'sall'], 'rec_scores': [...], 'det_polygons': [...], 'det_scores':
+[...]}]}
+```
+
+```{note}
+如果你在没有 GUI 的服务器上运行 MMOCR，或者通过没有开启 X11 转发的 SSH 隧道运行 MMOCR，你可能无法看到弹出的窗口。
+```
+
+对 MMOCR 中推理接口更为详细的说明，可以在[这里](../user_guides/inference.md)找到。
+
+除了使用我们提供好的预训练模型，用户也可以在自己的数据集上训练流行模型。接下来我们以在迷你的 [ICDAR 2015](https://rrc.cvc.uab.es/?ch=4&com=downloads) 数据集上训练 DBNet 为例，带大家熟悉 MMOCR 的基本功能。
+
+## 准备数据集
+
+由于 OCR 任务的数据集种类多样，格式不一，不利于多数据集的切换和联合训练，因此 MMOCR 约定了一种[统一的数据格式](../user_guides/dataset_prepare.md)，并针对常用的 OCR 数据集提供了[一键式数据准备脚本](../user_guides/data_prepare/dataset_preparer.md)。通常，要在 MMOCR 中使用数据集，你只需要按照对应步骤运行指令即可。
+
+```{note}
+但我们亦深知，效率就是生命——尤其对想要快速上手 MMOCR 的你来说。
+```
+
+在这里，我们准备了一个用于演示的精简版 ICDAR 2015 数据集。下载我们预先准备好的[压缩包](https://download.openmmlab.com/mmocr/data/icdar2015/mini_icdar2015.tar.gz)，解压到 mmocr 的 `data/` 目录下，就能得到我们准备好的图片和标注文件。
+
+```Bash
+wget https://download.openmmlab.com/mmocr/data/icdar2015/mini_icdar2015.tar.gz
+mkdir -p data/
+tar xzvf mini_icdar2015.tar.gz -C data/
+```
+
+## 修改配置
+
+准备好数据集后，我们接下来就需要通过修改配置的方式指定训练集的位置和训练参数。
+
+在这个例子中，我们将会训练一个以 resnet18 作为骨干网络（backbone）的 DBNet。由于 MMOCR 已经有针对完整 ICDAR 2015 数据集的配置 （`configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py`），我们只需要在它的基础上作出一点修改。
+
+我们首先需要修改数据集的路径。在这个配置中，大部分关键的配置文件都在 `_base_` 中被导入，如数据库的配置就来自 `configs/textdet/_base_/datasets/icdar2015.py`。打开该文件，把第一行 `icdar2015_textdet_data_root` 指向的路径替换：
+
+```Python
+icdar2015_textdet_data_root = 'data/mini_icdar2015'
+```
+
+另外，因为数据集尺寸缩小了，我们也要相应地减少训练的轮次到 400，缩短验证和储存权重的间隔到10轮，并放弃学习率衰减策略。直接把以下几行配置放入 `configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py`即可生效：
+
+```Python
+# 每 10 个 epoch 储存一次权重，且只保留最后一个权重
+default_hooks = dict(
+    checkpoint=dict(
+        type='CheckpointHook',
+        interval=10,
+        max_keep_ckpts=1,
+    ))
+# 设置最大 epoch 数为 400，每 10 个 epoch 运行一次验证
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=400, val_interval=10)
+# 令学习率为常量，即不进行学习率衰减
+param_scheduler = [dict(type='ConstantLR', factor=1.0),]
+```
+
+这里，我们通过配置的继承 ({external+mmengine:doc}`MMEngine: Config <advanced_tutorials/config>`) 机制将基础配置中的相应参数直接进行了改写。原本的字段分布在 `configs/textdet/_base_/schedules/schedule_sgd_1200e.py` 和 `configs/textdet/_base_/default_runtime.py` 中，感兴趣的读者可以自行查看。
+
+```{note}
+关于配置文件更加详尽的说明，请参考[此处](../user_guides/config.md)。
+```
+
+## 可视化数据集
+
+在正式开始训练前，我们还可以可视化一下经过训练过程中[数据变换（transforms）](../basic_concepts/transforms.md)后的图像。方法也很简单，把我们需要可视化的配置传入 [browse_dataset.py](/tools/analysis_tools/browse_dataset.py) 脚本即可：
+
+```Bash
+python tools/analysis_tools/browse_dataset.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
+```
+
+数据变换后的图片和标签会在弹窗中逐张被展示出来。
+
+<center class="half">
+    <img src="https://user-images.githubusercontent.com/24622904/187611542-01e9aa94-fc12-4756-964b-a0e472522a3a.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611555-3f5ea616-863d-4538-884f-bccbebc2f7e7.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611581-88be3970-fbfe-4f62-8cdf-7a8a7786af29.jpg" width="250"/>
+</center>
+
+```{note}
+有关该脚本更详细的指南，请参考[此处](../user_guides/useful_tools.md).
+```
+
+```{tip}
+除了满足好奇心之外，可视化还可以帮助我们在训练前检查可能影响到模型表现的部分，如配置文件、数据集及数据变换中的问题。
+```
+
+## 训练
+
+万事俱备，只欠东风。运行以下命令启动训练：
+
+```Bash
+python tools/train.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py
+```
+
+根据系统情况，MMOCR 会自动使用最佳的设备进行训练。如果有 GPU，则会默认在第一张卡启动单卡训练。当开始看到 loss 的输出，就说明你已经成功启动了训练。
+
+```Bash
+2022/08/22 18:42:22 - mmengine - INFO - Epoch(train) [1][5/7]  lr: 7.0000e-03  memory: 7730  data_time: 0.4496  loss_prob: 14.6061  loss_thr: 2.2904  loss_db: 0.9879  loss: 17.8843  time: 1.8666
+2022/08/22 18:42:24 - mmengine - INFO - Exp name: dbnet_resnet18_fpnc_1200e_icdar2015
+2022/08/22 18:42:28 - mmengine - INFO - Epoch(train) [2][5/7]  lr: 7.0000e-03  memory: 6695  data_time: 0.2052  loss_prob: 6.7840  loss_thr: 1.4114  loss_db: 0.9855  loss: 9.1809  time: 0.7506
+2022/08/22 18:42:29 - mmengine - INFO - Exp name: dbnet_resnet18_fpnc_1200e_icdar2015
+2022/08/22 18:42:33 - mmengine - INFO - Epoch(train) [3][5/7]  lr: 7.0000e-03  memory: 6690  data_time: 0.2101  loss_prob: 3.0700  loss_thr: 1.1800  loss_db: 0.9967  loss: 5.2468  time: 0.6244
+2022/08/22 18:42:33 - mmengine - INFO - Exp name: dbnet_resnet18_fpnc_1200e_icdar2015
+```
+
+在不指定额外参数时，训练的权重默认会被保存到 `work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/` 下面，而日志则会保存在`work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/开始训练的时间戳/`里。接下来，我们只需要耐心等待模型训练完成即可。
+
+```{note}
+若需要了解训练的高级用法，如 CPU 训练、多卡训练及集群训练等，请查阅[训练与测试](../user_guides/train_test.md)。
+```
+
+## 测试
+
+经过数十分钟的等待，模型顺利完成了400 epochs的训练。我们通过控制台的输出，观察到 DBNet 在最后一个 epoch 的表现最好，`hmean` 达到了 60.86（你可能会得到一个不太一样的结果）：
+
+```Bash
+08/22 19:24:52 - mmengine - INFO - Epoch(val) [400][100/100]  icdar/precision: 0.7285  icdar/recall: 0.5226  icdar/hmean: 0.6086
+```
+
+```{note}
+它或许还没被训练到最优状态，但对于一个演示而言已经足够了。
+```
+
+然而，这个数值只反映了 DBNet 在迷你 ICDAR 2015 数据集上的性能。要想更加客观地评判它的检测能力，我们还要看看它在分布外数据集上的表现。例如，`tests/data/det_toy_dataset` 就是一个很小的真实数据集，我们可以用它来验证一下 DBNet 的实际性能。
+
+在测试前，我们同样需要对数据集的位置做一下修改。打开 `configs/textdet/_base_/datasets/icdar2015.py`，修改 `icdar2015_textdet_test` 的 `data_root` 为 `tests/data/det_toy_dataset`:
+
+```Python
+# ...
+icdar2015_textdet_test = dict(
+    type='OCRDataset',
+    data_root='tests/data/det_toy_dataset',
+    # ...
+    )
+```
+
+修改完毕，运行命令启动测试。
+
+```Bash
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/epoch_400.pth
+```
+
+得到输出：
+
+```Bash
+08/21 21:45:59 - mmengine - INFO - Epoch(test) [5/10]    memory: 8562
+08/21 21:45:59 - mmengine - INFO - Epoch(test) [10/10]    eta: 0:00:00  time: 0.4893  data_time: 0.0191  memory: 283
+08/21 21:45:59 - mmengine - INFO - Evaluating hmean-iou...
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.30, recall: 0.6190, precision: 0.4815, hmean: 0.5417
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.40, recall: 0.6190, precision: 0.5909, hmean: 0.6047
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.50, recall: 0.6190, precision: 0.6842, hmean: 0.6500
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.60, recall: 0.6190, precision: 0.7222, hmean: 0.6667
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.70, recall: 0.3810, precision: 0.8889, hmean: 0.5333
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.80, recall: 0.0000, precision: 0.0000, hmean: 0.0000
+08/21 21:45:59 - mmengine - INFO - prediction score threshold: 0.90, recall: 0.0000, precision: 0.0000, hmean: 0.0000
+08/21 21:45:59 - mmengine - INFO - Epoch(test) [10/10]  icdar/precision: 0.7222  icdar/recall: 0.6190  icdar/hmean: 0.6667
+```
+
+可以发现，模型在这个数据集上能达到的 hmean 为 0.6667，效果还是不错的。
+
+```{note}
+若需要了解测试的高级用法，如 CPU 测试、多卡测试及集群测试等，请查阅[训练与测试](../user_guides/train_test.md)。
+```
+
+## 可视化输出
+
+为了对模型的输出有一个更直观的感受，我们还可以直接可视化它的预测输出。在 `test.py` 中，用户可以通过 `show` 参数打开弹窗可视化；也可以通过 `show-dir` 参数指定预测结果图导出的目录。
+
+```Bash
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py work_dirs/dbnet_resnet18_fpnc_1200e_icdar2015/epoch_400.pth --show-dir imgs/
+```
+
+真实标签和预测值会在可视化结果中以平铺的方式展示。左图的绿框表示真实标签，右图的红框表示预测值。
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/187423562-6a85e209-4b12-46ee-8a41-5c67b1ba83f9.png"/><br>
+</div>
+
+```{note}
+有关更多可视化功能的介绍，请参阅[这里](../user_guides/visualization.md)。
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/index.rst b/mmocr-dev-1.x/docs/zh_cn/index.rst
new file mode 100644
index 0000000000000000000000000000000000000000..5ed0a2530583b53344ffc910c6c4f8356daa09f8
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/index.rst
@@ -0,0 +1,112 @@
+欢迎来到 MMOCR 的中文文档!
+=======================================
+
+您可以在页面左下角切换中英文文档。
+
+.. toctree::
+   :maxdepth: 2
+   :caption: 新手入门
+
+   get_started/overview.md
+   get_started/install.md
+   get_started/quick_run.md
+   get_started/faq.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: 用户指南
+
+   user_guides/inference.md
+   user_guides/config.md
+   user_guides/dataset_prepare.md
+   user_guides/train_test.md
+   user_guides/visualization.md
+   user_guides/useful_tools.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: 基础概念
+
+   basic_concepts/structures.md
+   basic_concepts/transforms.md
+   basic_concepts/evaluation.md
+   basic_concepts/datasets.md
+   basic_concepts/overview.md
+   basic_concepts/data_flow.md
+   basic_concepts/models.md
+   basic_concepts/visualizers.md
+   basic_concepts/convention.md
+   basic_concepts/engine.md
+
+
+.. toctree::
+   :maxdepth: 2
+   :caption: 数据集支持
+
+   user_guides/data_prepare/datasetzoo.md
+   user_guides/data_prepare/dataset_preparer.md
+   user_guides/data_prepare/det.md
+   user_guides/data_prepare/recog.md
+   user_guides/data_prepare/kie.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: 模型支持
+
+   modelzoo.md
+   projectzoo.md
+   backbones.md
+   textdet_models.md
+   textrecog_models.md
+   kie_models.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: 其它
+
+   notes/branches.md
+   notes/contribution_guide.md
+   notes/changelog.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: MMOCR 0.x 迁移指南
+
+   migration/overview.md
+   migration/news.md
+   migration/branches.md
+   migration/code.md
+   migration/dataset.md
+   migration/model.md
+   migration/transforms.md
+
+.. toctree::
+   :maxdepth: 2
+   :caption: API 文档
+
+   mmocr.apis <api/apis>
+   mmocr.structures <api/structures>
+   mmocr.datasets <api/datasets>
+   mmocr.transforms <api/transforms>
+   mmocr.models <api/models>
+   mmocr.evaluation <api/evaluation>
+   mmocr.visualization <api/visualization>
+   mmocr.engine <api/engine>
+   mmocr.utils <api/utils>
+
+.. toctree::
+   :maxdepth: 2
+   :caption: 联系我们
+
+   contact.md
+
+.. toctree::
+   :caption: 切换语言
+
+   switch_language.md
+
+导引
+==================
+
+* :ref:`genindex`
+* :ref:`search`
diff --git a/mmocr-dev-1.x/docs/zh_cn/make.bat b/mmocr-dev-1.x/docs/zh_cn/make.bat
new file mode 100644
index 0000000000000000000000000000000000000000..8a3a0e25b49a52ade52c4f69ddeb0bc3d12527ff
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/make.bat
@@ -0,0 +1,36 @@
+@ECHO OFF
+
+pushd %~dp0
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set SOURCEDIR=.
+set BUILDDIR=_build
+
+if "%1" == "" goto help
+
+%SPHINXBUILD% >NUL 2>NUL
+if errorlevel 9009 (
+	echo.
+	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+	echo.installed, then set the SPHINXBUILD environment variable to point
+	echo.to the full path of the 'sphinx-build' executable. Alternatively you
+	echo.may add the Sphinx directory to PATH.
+	echo.
+	echo.If you don't have Sphinx installed, grab it from
+	echo.http://sphinx-doc.org/
+	exit /b 1
+)
+
+
+%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+goto end
+
+:help
+%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+
+:end
+popd
diff --git a/mmocr-dev-1.x/docs/zh_cn/merge_docs.sh b/mmocr-dev-1.x/docs/zh_cn/merge_docs.sh
new file mode 100755
index 0000000000000000000000000000000000000000..a13706d5d61b065fd83d66d663303969f5e9c930
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/merge_docs.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# gather models
+sed -e '$a\\n' -s ../../configs/kie/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 关键信息提取模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >kie_models.md
+sed -e '$a\\n' -s ../../configs/textdet/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 文本检测模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textdet_models.md
+sed -e '$a\\n' -s ../../configs/textrecog/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 文本识别模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textrecog_models.md
+sed -e '$a\\n' -s ../../configs/backbone/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 骨干网络' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >backbones.md
diff --git a/mmocr-dev-1.x/docs/zh_cn/migration/branches.md b/mmocr-dev-1.x/docs/zh_cn/migration/branches.md
new file mode 100644
index 0000000000000000000000000000000000000000..1d7f8d2fca14605f59484a703793fb69f98013b7
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/migration/branches.md
@@ -0,0 +1,38 @@
+# 分支迁移
+
+在早期阶段，MMOCR 有三个分支：`main`、`1.x` 和 `dev-1.x`。随着 MMOCR 1.0.0 正式版的发布，我们也重命名了其中一些分支，下面提供了新旧分支的对照。
+
+- `main` 分支包括了 MMOCR 0.x（例如 v0.6.3）的代码。现在已经被重命名为 `0.x`。
+- `1.x` 包含了 MMOCR 1.x（例如 1.0.0rc6）的代码。现在它是 `main` 分支的别名，会在 2023 的年中删除。
+- `dev-1.x` 是 MMOCR 1.x 的开发分支。现在保持不变。
+
+有关分支的更多信息，请查看[分支](../notes/branches.md)。
+
+## 升级 `main` 分支时解决冲突
+
+对于希望从旧 `main` 分支（包含 MMOCR 0.x 代码）升级的用户，代码可能会导致冲突。要避免这些冲突，请按照以下步骤操作：
+
+1. 请 commit 在 `main` 上的所有更改（若有），并备份您当前的 `main` 分支。
+
+   ```bash
+   git checkout main
+   git add --all
+   git commit -m 'backup'
+   git checkout -b main_backup
+   ```
+
+2. 从远程存储库获取最新更改。
+
+   ```bash
+   git remote add openmmlab git@github.com:open-mmlab/mmocr.git
+   git fetch openmmlab
+   ```
+
+3. 通过运行 `git reset --hard openmmlab/main` 将 `main` 分支重置为远程存储库上的最新 `main` 分支。
+
+   ```bash
+   git checkout main
+   git reset --hard openmmlab/main
+   ```
+
+按照这些步骤，您可以成功升级您的 `main` 分支。
diff --git a/mmocr-dev-1.x/docs/zh_cn/migration/code.md b/mmocr-dev-1.x/docs/zh_cn/migration/code.md
new file mode 100644
index 0000000000000000000000000000000000000000..ee63dd9523b6b3a5b3a7f9e1f96f1ed870610455
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/migration/code.md
@@ -0,0 +1,151 @@
+# 代码结构变动
+
+MMOCR 为了兼顾文本检测、识别和关键信息提取等任务，在初版设计时存在许多欠缺考虑的地方。在本次 1.0 版本的升级中，MMOCR 同步提出了新的模型架构，旨在尽量与 OpenMMLab 整体的设计对齐，且在算法库内部达成结构上的统一。虽然本次升级并非完全后向兼容，但所有的变动都是有迹可循的。因此，我们在本章节总结出了开发者可能会关心的改动，供有需要的用户参考。
+
+## 整体改动
+
+MMOCR 0.x 存在着对模块功能边界定义不清晰的问题。在 MMOCR 1.0 中，我们重构了模型模块的设计，并定义了它们的模块边界。
+
+- 考虑到方向差异过大，MMOCR 1.0 中取消了对命名实体识别的支持。
+
+- 模型中计算损失（loss）的部分模块被抽象化为 Module Loss，转换原始标注为损失目标（loss target）的功能也被包括在内。另一个模块抽象 Postprocessor 则负责在预测时解码模型原始输出为对应任务的 `DataSample`。
+
+- 所有模型的输入简化为包含图像原始特征的 `inputs` 和图片元信息的 `List[DataSample]`。输出格式也得到统一，训练时是包含 loss 的字典，测试时的输出为包含预测结果的对应任务的 [`DataSample`](<>)。
+
+- Module Loss 来源于 0.x 版本中实现与单个模型强相关的 `XXLoss` 类，它们在 1.0 中均被统一重命名为`XXModuleLoss`的形式（如`DBLoss` 被重命名为 `DBModuleLoss`）, `head` 传入的 loss 配置参数名也从 `loss` 改为 `module_loss`。
+
+- 与模型实现无关的通用损失类名称保持 `XXLoss` 的形式，并放置于 `mmocr/models/common/losses` 下，如 [`MaskedBCELoss`](mmocr.models.common.losses.MaskedBCELoss)。
+
+- `mmocr/models/common/losses` 下的改动：0.x 中 `DiceLoss` 被重名为 [`MaskedDiceLoss`](mmocr.models.common.losses.MaskedDiceLoss)。`FocalLoss` 被移除。
+
+- 增加了起源于 label converter 的 Dictionary 模块，它会在文本识别和关键信息提取任务中被用到。
+
+## 文本检测
+
+### 关键改动（太长不看版）
+
+- 旧版的模型权重仍然适用于新版，但需要将权重字典 `state_dict` 中以 `bbox_head` 开头的字段重命名为 `det_head`。
+
+- 计算 target 有关的变换 `XXTargets` 被转移到了 `XXModuleLoss` 中。
+
+### SingleStageTextDetector
+
+- 原本继承链为 `mmdet.BaseDetector->SingleStageDetector->SingleStageTextDetector`，现在改为直接继承自 `BaseDetector`, 中间的 `SingleStageDetector` 被删除。
+
+- `bbox_head` 改名为 `det_head`。
+
+- `train_cfg`、`test_cfg`和`pretrained`字段被移除。
+
+- `forward_train()` 与 `simple_test()` 分别被重构为 `loss()` 与 `predict()` 方法。其中 `simple_test()` 中负责将模型原始输出拆分并输入 `head.get_bounary()` 的部分被整合进了 `BaseTextDetPostProcessor` 中。
+
+- `TextDetectorMixin` 中只实现了 `show_result()`方法，实现与 `TextDetLocalVisualizer` 重合，因此已经被移除。
+
+### Head
+
+- `HeadMixin` 为`XXXHead` 在 0.x 版本中必须继承的基类，现在被 `BaseTextDetHead` 代替。里面的 `get_boundary()` 和 `resize_boundary()` 方法被重写为 `BaseTextDetPostProcessor` 的 `__call__()` 和 `rescale()` 方法。
+
+### ModuleLoss
+
+- 文本检测中特有的数据变换 `XXXTargets` 全部移动到 `XXXModuleLoss._get_target_single` 中，与生成 target 相关的配置不再在数据流水线（pipeline）中设置，转而在 `XXXLoss` 中被配置。例如，`DBNetTargets` 的实现被移动到 `DBModuleLoss._get_target_single()`中，而用户可以通过设置 `DBModuleLoss` 的初始化参数来控制损失目标的生成。
+
+### Postprocessor
+
+- 原本的 `XXXPostprocessor.__call__()` 中的逻辑转移到重构后的 `XXXPostprocessor.get_text_instances()` 。
+
+- `BasePostprocessor` 重构为 `BaseTextDetPostProcessor`，此基类会将模型输出的预测结果拆分并逐个进行处理，并支持根据 `scale_factor` 自动缩放输出的多边形（polygon）或界定框（bounding box）。
+
+## 文本识别
+
+### 关键改动（太长不看版）
+
+- 由于字典序发生了变化，且存在部分模型架构上的 bug 被修复，旧版的识别模型权重已经不再能直接应用于 1.0 中，我们将会在后续为有需要的用户推出迁移脚本教程。
+
+- 0.x 版本中的 SegOCR 支持暂时移除，TPS-CRNN 会在后续版本中被支持。
+
+- 测试时增强（test time augmentation）在此版本中暂未支持，但将会在后续版本中更新。
+
+- Label converter 模块被移除，里面的功能被拆分至 Dictionary, ModuleLoss 和 Postprocessor 模块中。
+
+- 统一模型中对 `max_seq_len` 的定义为模型的原始输出长度。
+
+### Label Converter
+
+- 原有的 label converter 存在拼写错误 (label convertor)，我们通过删除掉这个类规避了这个问题。
+
+- 负责对字符/字符串与数字索引互相转换的部分被提取至 [`Dictionary`](mmocr.models.common.Dictionary) 类中。
+
+- 在旧版本中，不同的 label converter 会有不一样的特殊字符集和字符序。在 0.x 版本中，字符序如下：
+
+  | Converter                       | 字符序                                    |
+  | ------------------------------- | ----------------------------------------- |
+  | `AttnConvertor`, `ABIConvertor` | `<UKN>`, `<BOS/EOS>`, `<PAD>`, characters |
+  | `CTCConvertor`                  | `<BLK>`, `<UKN>`, characters              |
+
+在 1.0 中，我们不再以任务为边界设计不同的字典和字符序，取而代之的是统一了字符序的 Dictionary，其字符序为 characters, \<BOS/EOS>, \<PAD>, \<UKN>。`CTCConvertor` 中 \<BLK> 被等价替换为 \<PAD>。
+
+- `label_convertor` 中原本支持三种方式初始化字典：`dict_type`、`dict_file` 和 `dict_list`，现在在 `Dictionary` 中被简化为 `dict_file` 一种。同时，我们也把原本在 `dict_type` 中支持的字典格式转化为现在 `dicts/` 目录下的预设字典文件。对应映射如下：
+
+  | MMOCR 0.x: `dict_type` | MMOCR 1.0: 字典路径                    |
+  | ---------------------- | -------------------------------------- |
+  | DICT90                 | dicts/english_digits_symbols.txt       |
+  | DICT91                 | dicts/english_digits_symbols_space.txt |
+  | DICT36                 | dicts/lower_english_digits.txt         |
+  | DICT37                 | dicts/lower_english_digits_space.txt   |
+
+- `label_converter` 中 `str2tensor()` 的实现被转移到 `ModuleLoss.get_targets()` 中。下面的表格列出了旧版与新版方法实现的对应关系。注意，新旧版的实现并非完全一致。
+
+  | MMOCR 0.x                                                 | MMOCR 1.0                               | 备注                                         |
+  | --------------------------------------------------------- | --------------------------------------- | -------------------------------------------- |
+  | `ABIConvertor.str2tensor()`, `AttnConvertor.str2tensor()` | `BaseTextRecogModuleLoss.get_targets()` | 原本两个类中的实现存在的差异在新版本中被统一 |
+  | `CTCConvertor.str2tensor()`                               | `CTCModuleLoss.get_targets()`           |                                              |
+
+- `label_converter` 中 `tensor2idx()` 的实现被转移到 `Postprocessor.get_single_prediction()` 中。下面的表格列出了旧版与新版方法实现的对应关系。注意，新旧版的实现并非完全一致。
+
+  | MMOCR 0.x                                                 | MMOCR 1.0                                        |
+  | --------------------------------------------------------- | ------------------------------------------------ |
+  | `ABIConvertor.tensor2idx()`, `AttnConvertor.tensor2idx()` | `AttentionPostprocessor.get_single_prediction()` |
+  | `CTCConvertor.tensor2idx()`                               | `CTCPostProcessor.get_single_prediction()`       |
+
+## 关键信息提取
+
+### 关键改动（太长不看版）
+
+- 由于模型的输入发生了变化，旧版模型的权重已经不再能直接应用于 1.0 中。
+
+### KIEDataset & OpensetKIEDataset
+
+- 读取数据的部分被简化到 `WildReceiptDataset` 中。
+
+- 对节点和边作额外处理的部分被转移到了 `LoadKIEAnnotation` 中。
+
+- 使用字典对文本进行转化的部分被转移到了 `SDMGRHead.convert_text()` 中，使用 `Dictionary` 实现。
+
+- 计算文本框之间关系的部分`compute_relation()` 被转移到 `SDMGRHead.compute_relations()` 中，在模型内进行。
+
+- 评估模型表现的部分被简化为 `F1Metric`。
+
+- `OpensetKIEDataset` 中处理模型边输出的部分被整理到 `SDMGRPostProcessor`中。
+
+### SDMGR
+
+- `show_result()` 被整合到 `KIEVisualizer` 中。
+
+- `forward_test()` 中对输出进行后处理的部分被整理到 `SDMGRPostProcessor`中。
+
+## Utils 变动
+
+原本散布在各处的功能函数现已被统一归类在 `mmocr/utils/` 下。以下为该目录下各文件的作用域：
+
+- bbox_utils.py：四边界定框（bounding box）有关的功能函数。
+- check_argument.py：检查参数类型的功能函数。
+- collect_env.py：收集运行环境的功能函数。
+- data_converter_utils.py：用于数据集转换的功能函数。
+- fileio.py：输入/输出有关的功能函数。
+- img_utils.py：处理图片的功能函数。
+- mask_utils.py：与掩码有关的功能函数。
+- ocr.py：用于 MMOCR 推理的功能函数。
+- parsers.py：解码文件的功能函数。
+- polygon_utils.py：多边形的功能函数。
+- setup_env.py：存放初始化 MMOCR 的功能函数。
+- string_utils.py：存放字符串的功能函数。
+- typing.py：存放 MMOCR 中常用数据类型的缩写。
diff --git a/mmocr-dev-1.x/docs/zh_cn/migration/dataset.md b/mmocr-dev-1.x/docs/zh_cn/migration/dataset.md
new file mode 100644
index 0000000000000000000000000000000000000000..ac69703be3b62bed0c964d657ea09f51a1266551
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/migration/dataset.md
@@ -0,0 +1,254 @@
+# 数据集迁移
+
+在 OpenMMLab 2.0 系列算法库基于 [MMEngine](https://github.com/open-mmlab/mmengine) 设计了统一的数据集基类 [BaseDataset](mmengine.dataset.BaseDataset)，并制定了数据集标注文件规范。基于此，我们在 MMOCR 1.0 版本中重构了 OCR 任务数据集基类 [`OCRDataset`](mmocr.datasets.OCRDataset)。以下文档将介绍 MMOCR 中新旧数据集格式的区别，以及如何将旧数据集迁移至新版本中。对于暂不方便进行数据迁移的用户，我们也在[第三节](#兼容性)提供了临时的代码兼容方案。
+
+```{note}
+关键信息抽取任务仍采用原有的 WildReceipt 数据集标注格式。
+```
+
+## 旧版数据格式回顾
+
+针对不同任务，MMOCR 0.x 版本实现了多种不同的数据集类型，如文本检测任务的 `IcdarDataset`，`TextDetDataset`；文本识别任务的 `OCRDataset`，`OCRSegDataset` 等。而不同的数据集类型同时还可能存在多种不同的标注及文件存储后端，如 `.txt`、`.json`、`.jsonl` 等，使得用户在自定义数据集时需要配置各类数据加载器 (`Loader`) 以及数据解析器 (`Parser`)。这不仅增加了用户的使用难度，也带来了许多问题和隐患。例如，以 `.txt` 格式存储的简单 `OCDDataset` 在遇到包含空格的文本标注时将会报错。
+
+### 文本检测
+
+文本检测任务中，`IcdarDataset` 采用了与通用目标检测 COCO 数据集一致的标注格式。
+
+```json
+{
+  "images": [
+    {
+      "id": 1,
+      "width": 800,
+      "height": 600,
+      "file_name": "test.jpg"
+    }
+  ],
+  "annotations": [
+    {
+      "id": 1,
+      "image_id": 1,
+      "category_id": 1,
+      "bbox": [0,0,10,10],
+      "segmentation": [
+          [0,0,10,0,10,10,0,10]
+      ],
+      "area": 100,
+      "iscrowd": 0
+    }
+  ]
+}
+```
+
+而 `TextDetDataset` 则采用了 JSON Line 的存储格式，将类似 COCO 格式的标签转换成文本存放在 `.txt` 或 `.jsonl` 格式文件中。
+
+```text
+{"file_name": "test/img_2.jpg", "height": 720, "width": 1280,  "annotations": [{"iscrowd": 0, "category_id": 1, "bbox": [602.0, 173.0,  33.0, 24.0], "segmentation": [[602, 173, 635, 175, 634, 197, 602,  196]]}, {"iscrowd": 0, "category_id": 1, "bbox": [734.0, 310.0, 58.0,  54.0], "segmentation": [[734, 310, 792, 320, 792, 364, 738, 361]]}]}
+{"file_name": "test/img_5.jpg", "height": 720, "width": 1280,  "annotations": [{"iscrowd": 1, "category_id": 1, "bbox": [405.0, 409.0,  32.0, 52.0], "segmentation": [[408, 409, 437, 436, 434, 461, 405,  433]]}, {"iscrowd": 1, "category_id": 1, "bbox": [435.0, 434.0, 8.0,  33.0], "segmentation": [[437, 434, 443, 440, 441, 467, 435, 462]]}]}
+```
+
+### 文本识别
+
+对于文本识别任务，MMOCR 0.x 版本中存在两种数据标注格式。其中 `.txt` 格式的标注文件每一行共有两个字段，分别存放了图片名以及标注的文本内容，并以空格分隔。
+
+```text
+img1.jpg OpenMMLab
+img2.jpg MMOCR
+```
+
+而 JSON Line 格式则使用 `json.dumps` 将 JSON 格式的标注转换为文本内容后存放在 .jsonl 文件中，其内容形似一个字典，将文件名和文本标注信息分别存放在 `filename` 和 `text` 字段中。
+
+```json
+{"filename": "img1.jpg", "text": "OpenMMLab"}
+{"filename": "img2.jpg", "text": "MMOCR"}
+```
+
+## 新版数据格式
+
+为解决 0.x 版本中数据集格式过于混杂的情况，MMOCR 1.x 采用了基于 MMEngine 设计的统一数据标准。每一个数据标注文件存放在 `.json` 文件中，并使用类似字典的格式分别存放了数据集的元信息（`metainfo`）与具体的标注内容（`data_list`）。
+
+```json
+{
+  "metainfo":
+    {
+      "classes": ("cat", "dog"),
+      // ...
+    },
+  "data_list":
+    [
+      {
+        "img_path": "xxx/xxx_0.jpg",
+        "img_label": 0,
+        // ...
+      },
+      // ...
+    ]
+}
+```
+
+基于此，我们针对 MMOCR 特有的任务设计了 `TextDetDataset`、`TextRecogDataset`。
+
+### 文本检测
+
+#### 新版格式介绍
+
+`TextDetDataset` 中存放了文本检测任务所需的边界盒标注、文件名等信息。由于文本检测任务中只有 1 个类别，因此我们将其类别 id 默认设置为 0，而背景类则为 1。`tests/data/det_toy_dataset/instances_test.json` 中存放了一个文本检测任务的数据标注示例，用户可以参考该文件来将自己的数据集转换为我们支持的格式。
+
+```json
+{
+  "metainfo":
+    {
+      "dataset_type": "TextDetDataset",
+      "task_name": "textdet",
+      "category": [{"id": 0, "name": "text"}]
+    },
+  "data_list":
+    [
+      {
+        "img_path": "test_img.jpg",
+        "height": 640,
+        "width": 640,
+        "instances":
+          [
+            {
+              "polygon": [0, 0, 0, 10, 10, 20, 20, 0],
+              "bbox": [0, 0, 10, 20],
+              "bbox_label": 0,
+              "ignore": False
+            },
+            // ...
+          ]
+      }
+    ]
+}
+```
+
+其中，`bbox` 字段的格式为 `[min_x, min_y, max_x, max_y]`。
+
+#### 迁移脚本
+
+为帮助用户将旧版本标注文件迁移至新格式，我们提供了迁移脚本。使用方法如下：
+
+```bash
+python tools/dataset_converters/textdet/data_migrator.py ${IN_PATH} ${OUT_PATH}
+```
+
+| 参数     | 类型                             | 说明                                                                                                                                               |
+| -------- | -------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------- |
+| in_path  | str                              | （必须）旧版标注的路径                                                                                                                             |
+| out_path | str                              | （必须）新版标注的路径                                                                                                                             |
+| --task   | 'auto', 'textdet', 'textspotter' | 指定输出数据集标注的所兼容的任务。若指定为 textdet ，则不会转存 coco 格式中的 text 字段。默认为 auto，即根据旧版标注的格式自动决定输出的标注格式。 |
+
+### 文本识别
+
+#### 新版格式介绍
+
+`TextRecogDataset` 中存放了文本识别任务所需的文本内容，通常而言，文本识别数据集中的每一张图片都仅包含一个文本实例。我们在 `tests/data/rec_toy_dataset/labels.json` 提供了一个简单的识别数据格式示例，用户可以参考该文件以进一步了解其中的细节。
+
+```json
+{
+  "metainfo":
+    {
+      "dataset_type": "TextRecogDataset",
+      "task_name": "textrecog",
+    },
+    "data_list":
+    [
+      {
+        "img_path": "test_img.jpg",
+        "instances":
+            [
+              {
+                "text": "GRAND"
+              }
+            ]
+      }
+    ]
+}
+```
+
+#### 迁移脚本
+
+为帮助用户将旧版本标注文件迁移至新格式，我们提供了迁移脚本。使用方法如下：
+
+```bash
+python tools/dataset_converters/textrecog/data_migrator.py ${IN_PATH} ${OUT_PATH} --format ${txt, jsonl, lmdb}
+```
+
+| 参数     | 类型                   | 说明                       |
+| -------- | ---------------------- | -------------------------- |
+| in_path  | str                    | （必须）旧版标注的路径     |
+| out_path | str                    | （必须）新版标注的路径     |
+| --format | 'txt', 'jsonl', 'lmdb' | 指定旧版数据集标注的格式。 |
+
+## 兼容性
+
+考虑到用户对数据迁移所需的成本，我们在 MMOCR 1.x 版本中暂时对 MMOCR 0.x  旧版本格式进行了兼容。
+
+```{note}
+用于兼容旧数据格式的代码和组件可能在未来的版本中被完全移除。因此，我们强烈建议用户将数据集迁移至新的数据格式标准。
+```
+
+具体而言，我们提供了三个临时的数据集类 [IcdarDataset](mmocr.datasets.IcdarDataset), [RecogTextDataset](mmocr.datasets.RecogTextDataset), [RecogLMDBDataset](mmocr.datasets.RecogLMDBDataset) 来兼容旧格式的标注文件。分别对应了 MMOCR 0.x 版本中的文本检测数据集 `IcdarDataset`，`.txt`、`.jsonl` 和 `LMDB` 格式的文本识别数据标注。其使用方式与 0.x 版本一致。
+
+1. [IcdarDataset](mmocr.datasets.IcdarDataset) 支持 0.x 版本文本检测任务的 COCO 标注格式。只需要在 `configs/textdet/_base_/datasets` 中添加新的数据集配置文件，并指定其数据集类型为 `IcdarDataset` 即可。
+
+   ```python
+     data_root = 'data/det/icdar2015'
+
+     train_dataset = dict(
+         type='IcdarDataset',
+         data_root=data_root,
+         ann_file='instances_training.json',
+         data_prefix=dict(img_path='imgs/'),
+         filter_cfg=dict(filter_empty_gt=True, min_size=32),
+         pipeline=None)
+   ```
+
+2. [RecogTextDataset](mmocr.datasets.RecogTextDataset) 支持 0.x 版本文本识别任务的 `txt` 和 `jsonl` 标注格式。只需要在 `configs/textrecog/_base_/datasets` 中添加新的数据集配置文件，并指定其数据集类型为 `RecogTextDataset` 即可。例如，以下示例展示了如何配置并读取 toy dataset 中的旧格式标签 `old_label.txt` 以及 `old_label.jsonl`。
+
+   ```python
+    data_root = 'tests/data/rec_toy_dataset/'
+
+    # 读取旧版 txt 格式识别数据标签
+    txt_dataset = dict(
+        type='RecogTextDataset',
+        data_root=data_root,
+        ann_file='old_label.txt',
+        data_prefix=dict(img_path='imgs'),
+        parser_cfg=dict(
+            type='LineStrParser',
+            keys=['filename', 'text'],
+            keys_idx=[0, 1]),
+        pipeline=[])
+
+    # 读取旧版 json line 格式识别数据标签
+    jsonl_dataset = dict(
+        type='RecogTextDataset',
+        data_root=data_root,
+        ann_file='old_label.jsonl',
+        data_prefix=dict(img_path='imgs'),
+        parser_cfg=dict(
+            type='LineJsonParser',
+            keys=['filename', 'text'],
+        pipeline=[])
+   ```
+
+3. [RecogLMDBDataset](mmocr.datasets.RecogLMDBDataset) 支持 0.x 版本文本识别任务**图像+文字**的 `LMDB` 标注格式。只需要在 `configs/textrecog/_base_/datasets` 中添加新的数据集配置文件，并指定其数据集类型为 `RecogLMDBDataset` 即可。例如，以下示例展示了如何配置并读取 toy dataset 中的 `imgs.lmdb`，该 `lmdb` 文件**包含标签和图像**。
+
+   ```python
+   # 将数据集类型设定为 RecogLMDBDataset
+    data_root = 'tests/data/rec_toy_dataset/'
+
+    lmdb_dataset = dict(
+        type='RecogLMDBDataset',
+        data_root=data_root,
+        ann_file='imgs.lmdb',
+        pipeline=None)
+   ```
+
+   还需把 `train_pipeline` 及 `test_pipeline` 中的数据读取方法如 [`LoadImageFromFile`](mmocr.datasets.transforms.LoadImageFromFile) 替换为 [`LoadImageFromNDArray`](mmocr.datasets.transforms.LoadImageFromNDArray)：
+
+   ```python
+    train_pipeline = [dict(type='LoadImageFromNDArray')]
+   ```
diff --git a/mmocr-dev-1.x/docs/zh_cn/migration/model.md b/mmocr-dev-1.x/docs/zh_cn/migration/model.md
new file mode 100644
index 0000000000000000000000000000000000000000..0e276513df0e3704c36f1986451791c00d1f18e5
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/migration/model.md
@@ -0,0 +1,5 @@
+# 预训练模型迁移指南
+
+由于在新版本中我们对模型的结构进行了大量的重构和修复，MMOCR 1.x 并不能直接读入旧版的预训练权重。我们在网站上同步更新了所有模型的预训练权重和log，供有需要的用户使用。
+
+此外，我们正在进行针对文本检测任务的权重迁移工具的开发，并计划于近期版本内发布。由于文本识别和关键信息提取模型改动过大，且迁移是有损的，我们暂时不计划作相应支持。如果您有具体的需求，欢迎通过 [Issue](https://github.com/open-mmlab/mmocr/issues) 向我们提问。
diff --git a/mmocr-dev-1.x/docs/zh_cn/migration/news.md b/mmocr-dev-1.x/docs/zh_cn/migration/news.md
new file mode 100644
index 0000000000000000000000000000000000000000..e1ca6f91ac0bc3b0db1ef83af63250923fedad66
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/migration/news.md
@@ -0,0 +1,19 @@
+# MMOCR 1.x 更新汇总
+
+此处列出了 MMOCR 1.x 相对于 0.x 版本的重大更新。
+
+1. 架构升级：MMOCR 1.x 是基于 [MMEngine](https://github.com/open-mmlab/mmengine)，提供了一个通用的、强大的执行器，允许更灵活的定制，提供了统一的训练和测试入口。
+
+2. 统一接口：MMOCR 1.x 统一了数据集、模型、评估和可视化的接口和内部逻辑。支持更强的扩展性。
+
+3. 跨项目调用：受益于统一的设计，你可以使用其他OpenMMLab项目中实现的模型，如MMDet。 我们提供了一个例子，说明如何通过MMDetWrapper使用MMDetection的Mask R-CNN。查看我们的文档以了解更多细节。更多的包装器将在未来发布。
+
+4. 更强的可视化：我们提供了一系列可视化工具， 用户现在可以更方便可视化数据。
+
+5. 更多的文档和教程：我们增加了更多的教程，降低用户的学习门槛。
+
+6. 一站式数据准备：准备数据集已经不再是难事。使用我们的 [Dataset Preparer](https://mmocr.readthedocs.io/zh_CN/dev-1.x/user_guides/data_prepare/dataset_preparer.html)，一行命令即可让多个数据集准备就绪。
+
+7. 拥抱更多 `projects/`: 我们推出了 `projects/` 文件夹，用于存放一些实验性的新特性、框架和模型。我们对这个文件夹下的代码规范不作过多要求，力求让社区的所有想法第一时间得到实现和展示。请查看我们的[样例 project](https://github.com/open-mmlab/mmocr/blob/dev-1.x/projects/example_project/) 以了解更多。
+
+8. 更多新模型：MMOCR 1.0 支持了更多模型和模型种类。
diff --git a/mmocr-dev-1.x/docs/zh_cn/migration/overview.md b/mmocr-dev-1.x/docs/zh_cn/migration/overview.md
new file mode 100644
index 0000000000000000000000000000000000000000..987774a446c6b28967ed22fa778b7fb9c6966792
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/migration/overview.md
@@ -0,0 +1,18 @@
+# 概览
+
+伴随着 OpenMMLab 2.0 的发布，MMOCR 1.0 本身也作出了许多突破性的改变，使得代码的冗余度降低，代码效率提高，整体设计上也变得更为一致。然而，这些改变使得完美的后向兼容不再可能。我们也深知在这样巨大的变动之下，老用户想第一时间适应新版本也绝非易事。因此，我们推出了详细的迁移指南，旨在让老用户们尽可能平滑地过渡到全新的框架，最终能享受到全新的 MMOCR 和整个OpenMMLab 2.0 生态系统为生产力带来的巨大优势。
+
+```{warning}
+MMOCR 1.0 依赖于新的基础训练框架 [MMEngine](https://github.com/open-mmlab/mmengine)，因而有着与 MMOCR 0.x 完全不同的依赖链。尽管你可能已经拥有了一个可以正常运行 MMOCR 0.x 的环境，但你仍然需要创建一个新的 python 环境来安装 MMOCR 1.0 版本所需要的依赖库。我们提供了详细的[安装文档](../get_started/install.md)以供参考。
+```
+
+接下来，请根据你的实际需求，阅读需要的章节：
+
+- 若需要了解 MMOCR 1.0 的主要变化，请阅读 [MMOCR 1.x 更新汇总](./news.md)
+- 如果你需要把 0.x 版本中训练的模型直接迁移到 1.0 版本中使用，请阅读 [预训练模型迁移](./model.md)
+- 如果你需要训练模型，请阅读 [数据集迁移](./dataset.md) 和 [数据增强迁移](./transforms.md)
+- 如果你需要在 MMOCR 上进行开发，请阅读 [代码迁移](code.md) ，[分支迁移](branches.md) 和 [上游依赖库变更](https://github.com/open-mmlab/mmengine/tree/main/docs/zh_cn/migration)
+
+如下图所示，MMOCR 1.x 版本的维护计划主要分为三个阶段，即“公测期”，“兼容期”以及“维护期”。对于旧版本，我们将不再增加主要新功能。因此，我们强烈建议用户尽早迁移至 MMOCR 1.x 版本。
+
+![plan](https://user-images.githubusercontent.com/45810070/192678159-f8965f73-552b-48a1-bf65-659e8f519bdd.png)
diff --git a/mmocr-dev-1.x/docs/zh_cn/migration/transforms.md b/mmocr-dev-1.x/docs/zh_cn/migration/transforms.md
new file mode 100644
index 0000000000000000000000000000000000000000..57acd3d386d83c088d6434dc351b7462464671b2
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/migration/transforms.md
@@ -0,0 +1,583 @@
+# 数据变换迁移
+
+## 简介
+
+MMOCR 0.x 版本中，我们在 `mmocr/datasets/pipelines/xxx_transforms.py` 中实现了一系列的数据变换（Data Transforms）方法。然而，这些模块分散在各处，且缺乏规范统一的设计。因此，我们在 MMOCR 1.x 版本中对所有的数据增强模块进行了重构，并依照任务类型分别存放在 `mmocr/datasets/transforms` 目录下的 `ocr_transforms.py`，`textdet_transforms.py` 及 `textrecog_transforms.py` 中。其中，`ocr_transforms.py` 中实现了 OCR 相关任务通用的数据增强模块，而 `textdet_transforms.py` 和 `textrecog_transforms.py` 则分别实现了文本检测任务与文本识别任务相关的数据增强模组。
+
+由于在重构过程中我们对部分模块进行了重命名、合并或拆分，使得新的调用接口与默认参数可能与旧版本存在不一致。因此，本文档将详细介绍如何对数据增强模块进行迁移，即，如何配置现有的数据变换来达到与旧版一致的行为。
+
+## 配置迁移指南
+
+### 数据格式化相关数据变换
+
+1. `Collect` + `CustomFormatBundle` -> [`PackTextDetInputs`](mmocr.datasets.transforms.PackTextDetInputs)/[`PackTextRecogInputs`](mmocr.datasets.transforms.PackTextRecogInputs)
+
+`PackxxxInputs` 同时囊括了 `Collect` 和 `CustomFormatBundle` 两个功能，且不再有 `key` 参数，而训练目标 target 的生成现在被转移至在 `loss` 中完成。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+    type='CustomFormatBundle',
+    keys=['gt_shrink', 'gt_shrink_mask', 'gt_thr', 'gt_thr_mask'],
+    meta_keys=['img_path', 'ori_shape', 'img_shape'],
+    visualize=dict(flag=False, boundary_key='gt_shrink')),
+dict(
+    type='Collect',
+    keys=['img', 'gt_shrink', 'gt_shrink_mask', 'gt_thr', 'gt_thr_mask'])
+```
+
+</td><td>
+
+```python
+dict(
+  type='PackTextDetInputs',
+  meta_keys=('img_path', 'ori_shape', 'img_shape'))
+```
+
+</td></tr>
+</thead>
+</table>
+
+### 数据增强相关数据变换
+
+1. `ResizeOCR` -> [`Resize`](mmocr.datasets.transforms.Resize), [`RescaleToHeight`](mmocr.datasets.transforms.RescaleToHeight), [`PadToWidth`](mmocr.datasets.transforms.PadToWidth)
+
+   原有的 `ResizeOCR` 现在被拆分为三个独立的数据增强模块。
+
+   `keep_aspect_ratio=False` 时，等价为 1.x 版本中的 `Resize`，其配置可按如下方式修改。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ResizeOCR',
+  height=32,
+  min_width=100,
+  max_width=100,
+  keep_aspect_ratio=False)
+```
+
+</td><td>
+
+```python
+dict(
+  type='Resize',
+  scale=(100, 32),
+  keep_ratio=False)
+```
+
+</td></tr>
+</thead>
+</table>
+
+`keep_aspect_ratio=True`，且 `max_width=None` 时。将图片的高缩放至固定值，并等比例缩放图像的宽。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ResizeOCR',
+  height=32,
+  min_width=32,
+  max_width=None,
+  width_downsample_ratio = 1.0 / 16
+  keep_aspect_ratio=True)
+```
+
+</td><td>
+
+```python
+dict(
+  type='RescaleToHeight',
+  height=32,
+  min_width=32,
+  max_width=None,
+  width_divisor=16),
+```
+
+</td></tr>
+</thead>
+</table>
+
+`keep_aspect_ratio=True`，且 `max_width` 为固定值时。将图片的高缩放至固定值，并等比例缩放图像的宽。若缩放后的图像宽小于 `max_width`, 则将其填充至 `max_width`, 反之则将其裁剪至 `max_width`。即，输出图像的尺寸固定为 `(height, max_width)`。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ResizeOCR',
+  height=32,
+  min_width=32,
+  max_width=100,
+  width_downsample_ratio = 1.0 / 16,
+  keep_aspect_ratio=True)
+```
+
+</td><td>
+
+```python
+dict(
+  type='RescaleToHeight',
+  height=32,
+  min_width=32,
+  max_width=100,
+  width_divisor=16),
+dict(
+  type='PadToWidth',
+  width=100)
+```
+
+</td></tr>
+</thead>
+</table>
+
+2. `RandomRotateTextDet` &  `RandomRotatePolyInstances` -> [`RandomRotate`](mmocr.datasets.transforms.RandomRotate)
+
+   随机旋转数据增强策略已被整合至 `RanomRotate`。该方法的默认行为与 0.x 版本中的 `RandomRotateTextDet` 保持一致。此时仅需指定最大旋转角度 `max_angle` 即可。
+
+```{note}
+  新旧版本 "max_angle" 的默认值不同，因此需要重新进行指定。
+```
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(type='RandomRotateTextDet')
+```
+
+</td><td>
+
+```python
+dict(type='RandomRotate', max_angle=10)
+```
+
+</td></tr>
+</thead>
+</table>
+
+对于 `RandomRotatePolyInstances`，则需要指定参数 `use_canvas=True`。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='RandomRotatePolyInstances',
+  rotate_ratio=0.5, # 指定概率为0.5
+  max_angle=60,
+  pad_with_fixed_color=False)
+```
+
+</td><td>
+
+```python
+# 用 RandomApply 对数据变换进行包装，并指定执行概率
+dict(
+  type='RandomApply',
+  transforms=[
+    dict(type='RandomRotate',
+    max_angle=60,
+    pad_with_fixed_color=False,
+    use_canvas=True)],
+  prob=0.5) # 设置执行概率为 0.5
+```
+
+</td></tr>
+</thead>
+</table>
+
+```{note}
+在 0.x 版本中，部分数据增强方法通过定义一个内部变量 "xxx_ratio" 来指定执行概率，如 "rotate_ratio", "crop_ratio" 等。在 1.x 版本中，这些参数已被统一删除。现在，我们可以通过 "RandomApply" 来对不同的数据变换方法进行包装，并指定其执行概率。
+```
+
+3. `RandomCropFlip` -> [`TextDetRandomCropFlip`](mmocr.datasets.transforms.TextDetRandomCropFlip)
+
+   目前仅对方法名进行了更改，其他参数保持一致。
+
+4. `RandomCropPolyInstances` -> [`RandomCrop`](mmocr.datasets.transforms.RandomCrop)
+
+   新版本移除了 `crop_ratio` 以及 `instance_key`，并统一使用 `gt_polygons` 为目标进行裁剪。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='RandomCropPolyInstances',
+  instance_key='gt_masks',
+  crop_ratio=0.8, # 指定概率为 0.8
+  min_side_ratio=0.3)
+```
+
+</td><td>
+
+```python
+# 用 RandomApply 对数据变换进行包装，并指定执行概率
+dict(
+  type='RandomApply',
+  transforms=[dict(type='RandomCrop', min_side_ratio=0.3)],
+  prob=0.8) # 设置执行概率为 0.8
+```
+
+</td></tr>
+</thead>
+</table>
+
+5. `RandomCropInstances` -> [`TextDetRandomCrop`](mmocr.datasets.transforms.TextDetRandomCrop)
+
+   新版本移除了 `instance_key` 和 `mask_type`，并统一使用 `gt_polygons` 为目标进行裁剪。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='RandomCropInstances',
+  target_size=(800，800),
+  instance_key='gt_kernels')
+```
+
+</td><td>
+
+```python
+dict(
+  type='TextDetRandomCrop',
+  target_size=(800，800))
+```
+
+</td></tr>
+</thead>
+</table>
+
+6. `EastRandomCrop` -> [`RandomCrop`](mmocr.datasets.transforms.RandomCrop) + [`Resize`](mmocr.datasets.transforms.Resize) + [`mmengine.Pad`](mmcv.transforms.Pad)
+
+   原有的 `EastRandomCrop` 内同时对图像进行了剪裁、缩放以及填充。在新版本中，我们可以通过组合三种数据增强策略来达到相同的效果。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='EastRandomCrop',
+  max_tries=10,
+  min_crop_side_ratio=0.1,
+  target_size=(640, 640))
+```
+
+</td><td>
+
+```python
+dict(type='RandomCrop', min_side_ratio=0.1),
+dict(type='Resize', scale=(640,640), keep_ratio=True),
+dict(type='Pad', size=(640,640))
+```
+
+</td></tr>
+</thead>
+</table>
+
+7. `RandomScaling` -> [`mmengine.RandomResize`](mmcv.transforms.RandomResize)
+
+   在新版本中，我们直接使用 MMEngine 中实现的 `RandomResize` 来代替原有的实现。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+ dict(
+  type='RandomScaling',
+  size=800,
+  scale=(0.75, 2.5))
+```
+
+</td><td>
+
+```python
+dict(
+  type='RandomResize',
+  scale=(800, 800),
+  ratio_range=(0.75, 2.5),
+  keep_ratio=True)
+```
+
+</td></tr>
+</thead>
+</table>
+
+```{note}
+默认地，数据流水线会从当前 *scope* 的注册器中搜索对应的数据变换，如果不存在该数据变换，则将继续在上游库，如 MMCV 及 MMEngine 中进行搜索。例如，MMOCR 中并未实现 `RandomResize` 方法，但我们仍然可以在配置中直接引用该数据增强方法，因为程序将自动从上游的 MMCV 中搜索该方法。此外，用户也可以通过添加前缀的形式来指定 *scope*。例如，`mmengine.RandomResize` 将强制指定使用 MMCV 库中实现的 `RandomResize`，当上下游库中存在同名方法时，则可以通过这种形式强制使用特定的版本。另外需要注意的是，MMCV 中所有的数据变换方法都被注册至 MMEngine 中，因此我们使用 `mmengine.RandomResize` 而不是 `mmcv.RandomResize`。
+```
+
+8. `SquareResizePad` -> [`Resize`](mmocr.datasets.transforms.Resize) + [`SourceImagePad`](mmocr.datasets.transforms.SourceImagePad)
+
+   原有的 `SquareResizePad` 内部实现了两个分支，并依据概率 `pad_ratio` 随机使用其中的一个分支进行数据增强。具体而言，一个分支先对图像缩放再填充；另一个分支则直接对图像进行缩放。为增强不同模块的复用性，我们在 1.x 版本中将该方法拆分成了 `Resize` + `SourceImagePad` 的组合形式，并通过 MMCV 中的 `RandomChoice` 来控制分支。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='SquareResizePad',
+  target_size=800,
+  pad_ratio=0.6)
+```
+
+</td><td>
+
+```python
+dict(
+  type='RandomChoice',
+  transforms=[
+    [
+      dict(
+        type='Resize',
+        scale=800,
+        keep_ratio=True),
+      dict(
+        type='SourceImagePad',
+        target_scale=800)
+    ],
+    [
+      dict(
+        type='Resize',
+        scale=800,
+        keep_ratio=False)
+    ]
+  ],
+  prob=[0.4, 0.6]), # 两种组合的选用概率
+```
+
+</td></tr>
+</thead>
+</table>
+
+```{note}
+在 1.x 版本中，随机选择包装器 "RandomChoice" 代替了 "OneOfWrapper"，可以从一系列数据变换组合中随机抽取一组并应用。
+```
+
+9. `RandomWrapper` -> [`mmegnine.RandomApply`](mmcv.transforms.RandomApply)
+
+   在 1.x 版本中，`RandomWrapper` 包装器被替换为由 MMCV 实现的 `RandomApply`，用以指定数据变换的执行概率。其中概率 `p` 现在被命名为 `prob`。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+ dict(
+  type='RandomWrapper',
+  p=0.25,
+  transforms=[
+      dict(type='PyramidRescale'),
+  ])
+```
+
+</td><td>
+
+```python
+dict(
+  type='RandomApply',
+  prob=0.25,
+  transforms=[
+    dict(type='PyramidRescale'),
+  ])
+```
+
+</td></tr>
+</thead>
+</table>
+
+10. `OneOfWrapper` -> [`mmegnine.RandomChoice`](mmcv.transforms.RandomChoice)
+
+随机选择包装器现在被重命名为 `RandomChoice`，并且使用方法和原来完全一致。
+
+11. `ScaleAspectJitter` -> [`ShortScaleAspectJitter`](mmocr.datasets.transforms.ShortScaleAspectJitter), [`BoundedScaleAspectJitter`](mmocr.datasets.transforms.BoundedScaleAspectJitter)
+
+原有的 `ScaleAspectJitter` 实现了多种不同的图像尺寸抖动数据增强策略，在新版本中，我们将其拆分为数个逻辑更加清晰的独立数据变化方法。
+
+`resize_type='indep_sample_in_range'` 时，其等价于图像在指定范围内的随机缩放。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ScaleAspectJitter',
+  img_scale=None,
+  keep_ratio=False,
+  resize_type='indep_sample_in_range',
+  scale_range=(640, 2560))
+```
+
+</td><td>
+
+```python
+ dict(
+  type='RandomResize',
+  scale=(640, 640),
+  ratio_range=(1.0, 4.125),
+  resize_type='Resize',
+  keep_ratio=True))
+```
+
+</td></tr>
+</thead>
+</table>
+
+`resize_type='long_short_bound'` 时，将图像缩放至指定大小，再对其长宽比进行抖动。这一逻辑现在由新的数据变换类 `BoundedScaleAspectJitter` 实现。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ScaleAspectJitter',
+  img_scale=[(3000, 736)],  # Unused
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1),
+  multiscale_mode='value',
+  long_size_bound=800,
+  short_size_bound=480,
+  resize_type='long_short_bound',
+  keep_ratio=False)
+```
+
+</td><td>
+
+```python
+dict(
+  type='BoundedScaleAspectJitter',
+  long_size_bound=800,
+  short_size_bound=480,
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1))
+```
+
+</td></tr>
+</thead>
+</table>
+
+`resize_type='around_min_img_scale'` （默认参数）时，将图像的短边缩放至指定大小，再在指定范围内对长宽比进行抖动。最后，确保其边长能被 `scale_divisor` 整除。这一逻辑由新的数据变换类 `ShortScaleAspectJitter` 实现。
+
+<table class="docutils">
+<thead>
+  <tr>
+    <th>MMOCR 0.x 配置</th>
+    <th>MMOCR 1.x 配置</th>
+  </tr>
+  <tbody><tr>
+  <td valign="top">
+
+```python
+dict(
+  type='ScaleAspectJitter',
+  img_scale=[(3000, 640)],
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1),
+  multiscale_mode='value',
+  keep_ratio=False)
+```
+
+</td><td>
+
+```python
+dict(
+  type='ShortScaleAspectJitter',
+  short_size=640,
+  ratio_range=(0.7, 1.3),
+  aspect_ratio_range=(0.9, 1.1),
+  scale_divisor=32),
+```
+
+</td></tr>
+</thead>
+</table>
diff --git a/mmocr-dev-1.x/docs/zh_cn/notes/branches.md b/mmocr-dev-1.x/docs/zh_cn/notes/branches.md
new file mode 100644
index 0000000000000000000000000000000000000000..ddcc54cdfe870c8cc623583456e01e341cb047ba
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/notes/branches.md
@@ -0,0 +1,25 @@
+# 分支
+
+本文档旨在全面解释 MMOCR 中每个分支的目的和功能。
+
+## 分支概述
+
+### 1. `main`
+
+`main` 分支是 MMOCR 项目的默认分支。它包含了 MMOCR 的最新稳定版本，目前包含了 MMOCR 1.x（例如 v1.0.0）的代码。`main` 分支确保用户能够使用最新和最可靠的软件版本。
+
+### 2. `dev-1.x`
+
+`dev-1.x` 分支用于开发 MMOCR 的下一个版本。此分支将在发版前进行依赖性测试，通过的提交将会合成到新版本中，并被发布到 `main` 分支。通过设置单独的开发分支，项目可以在不影响 `main` 分支稳定性的情况下继续发展。**所有 PR 应合并到 `dev-1.x` 分支。**
+
+### 3. `0.x`
+
+`0.x` 分支用作 MMOCR 0.x（例如 v0.6.3）的存档。此分支将不再积极接受更新或改进，但它仍可作为历史参考，或供尚未升级到 MMOCR 1.x 的用户使用。
+
+### 4. `1.x`
+
+它是 `main` 分支的别名，旨在实现从兼容性时期平稳过渡。它将在 2023 年的年中删除。
+
+```{note}
+分支映射在 2023.04.06 发生了变化。有关旧分支映射和迁移指南，请参阅[分支迁移指南](../migration/branches.md)。
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/notes/contribution_guide.md b/mmocr-dev-1.x/docs/zh_cn/notes/contribution_guide.md
new file mode 100644
index 0000000000000000000000000000000000000000..90611e8ac8d5778d58242c0fa97f9db88f83e36f
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/notes/contribution_guide.md
@@ -0,0 +1,135 @@
+# 贡献指南
+
+OpenMMLab 欢迎所有人参与我们项目的共建。本文档将指导您如何通过拉取请求为 OpenMMLab 项目作出贡献。
+
+## 什么是拉取请求？
+
+`拉取请求` (Pull Request), [GitHub 官方文档](https://docs.github.com/en/github/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests)定义如下。
+
+```
+拉取请求是一种通知机制。你修改了他人的代码，将你的修改通知原来作者，希望他合并你的修改。
+```
+
+## 基本的工作流：
+
+1. 获取最新的代码库
+2. 从最新的 `dev-1.x` 分支创建分支进行开发
+3. 提交修改 ([不要忘记使用 pre-commit hooks!](#3-提交你的修改))
+4. 推送你的修改并创建一个 `拉取请求`
+5. 讨论、审核代码
+6. 将开发分支合并到 `dev-1.x` 分支
+
+## 具体步骤
+
+### 1. 获取最新的代码库
+
+- 当你第一次提 PR 时
+
+  复刻 OpenMMLab 原代码库，点击 GitHub 页面右上角的 **Fork** 按钮即可
+  ![avatar](https://user-images.githubusercontent.com/22607038/195038780-06a46340-8376-4bde-a07f-2577f231a204.png)
+
+  克隆复刻的代码库到本地
+
+  ```bash
+  git clone git@github.com:XXX/mmocr.git
+  ```
+
+  添加原代码库为上游代码库
+
+  ```bash
+  git remote add upstream git@github.com:open-mmlab/mmocr
+  ```
+
+- 从第二个 PR 起
+
+  检出本地代码库的主分支，然后从最新的原代码库的主分支拉取更新。这里假设你正基于 `dev-1.x` 开发。
+
+  ```bash
+  git checkout dev-1.x
+  git pull upstream dev-1.x
+  ```
+
+### 2. 从 `dev-1.x` 分支创建一个新的开发分支
+
+```bash
+git checkout -b branchname
+```
+
+```{tip}
+为了保证提交历史清晰可读，我们强烈推荐您先切换到 `dev-1.x` 分支，再创建新的分支。
+```
+
+### 3. 提交你的修改
+
+- 如果你是第一次尝试贡献，请在 MMOCR 的目录下安装并初始化 pre-commit hooks。
+
+  ```bash
+  pip install -U pre-commit
+  pre-commit install
+  ```
+
+- 提交修改。在每次提交前，pre-commit hooks 都会被触发并规范化你的代码格式。
+
+  ```bash
+  # coding
+  git add [files]
+  git commit -m 'messages'
+  ```
+
+  ```{note}
+  有时你的文件可能会在提交时被 pre-commit hooks 自动修改。这时请重新添加并提交修改后的文件。
+  ```
+
+### 4. 推送你的修改到复刻的代码库，并创建一个拉取请求
+
+- 推送当前分支到远端复刻的代码库
+
+  ```bash
+  git push origin branchname
+  ```
+
+- 创建一个拉取请求
+
+  ![avatar](https://user-images.githubusercontent.com/22607038/195053564-71bd3cb4-b8d4-4ed9-9075-051e138b7fd4.png)
+
+- 修改拉取请求信息模板，描述修改原因和修改内容。还可以在 PR 描述中，手动关联到相关的议题 (issue),（更多细节，请参考[官方文档](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)）。
+
+- 另外，如果你正在往 `dev-1.x` 分支提交代码，你还需要在创建 PR 的界面中将基础分支改为 `dev-1.x`，因为现在默认的基础分支是 `main`。
+
+  ![avatar](https://user-images.githubusercontent.com/22607038/195045928-f3ceedc8-0162-46a7-ae1a-7e22829fe189.png)
+
+- 你同样可以把 PR 关联给相关人员进行评审。
+
+### 5. 讨论并评审你的代码
+
+- 根据评审人员的意见修改代码，并推送修改
+
+### 6. `拉取请求`合并之后删除该分支
+
+- 在 PR 合并之后，你就可以删除该分支了。
+
+  ```bash
+  git branch -d branchname # 删除本地分支
+  git push origin --delete branchname # 删除远程分支
+  ```
+
+## PR 规范
+
+1. 使用 [pre-commit hook](https://pre-commit.com)，尽量减少代码风格相关问题
+
+2. 一个 PR 对应一个短期分支
+
+3. 粒度要细，一个PR只做一件事情，避免超大的PR
+
+   - Bad：实现 Faster R-CNN
+   - Acceptable：给 Faster R-CNN 添加一个 box head
+   - Good：给 box head 增加一个参数来支持自定义的 conv 层数
+
+4. 每次 Commit 时需要提供清晰且有意义 commit 信息
+
+5. 提供清晰且有意义的`拉取请求`描述
+
+   - 标题写明白任务名称，一般格式:\[Prefix\] Short description of the pull request (Suffix)
+   - prefix: 新增功能 \[Feature\], 修 bug \[Fix\], 文档相关 \[Docs\], 开发中 \[WIP\] (暂时不会被review)
+   - 描述里介绍`拉取请求`的主要修改内容，结果，以及对其他部分的影响, 参考`拉取请求`模板
+   - 关联相关的`议题` (issue) 和其他`拉取请求`
diff --git a/mmocr-dev-1.x/docs/zh_cn/project_zoo.py b/mmocr-dev-1.x/docs/zh_cn/project_zoo.py
new file mode 100755
index 0000000000000000000000000000000000000000..cc403f8419e619a7d00bf5b9d5af50d086160717
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/project_zoo.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python
+import os.path as osp
+import re
+
+# This script reads /projects/selected.txt and generate projectzoo.md
+
+files = []
+
+project_zoo = """
+# 前沿模型
+
+这里是一些已经复现，但是尚未包含在 MMOCR 包中的前沿模型。
+
+"""
+
+files = open('../../projects/selected.txt').readlines()
+
+for file in files:
+    file = file.strip()
+    with open(osp.join('../../', file)) as f:
+        content = f.read()
+
+    # Extract title
+    expr = '# (.*?)\n'
+    title = re.search(expr, content).group(1)
+    project_zoo += f'## {title}\n\n'
+
+    # Locate the description
+    expr = '## Description\n(.*?)##'
+    description = re.search(expr, content, re.DOTALL).group(1)
+    project_zoo += f'{description}\n'
+
+    # check milestone 1
+    expr = r'- \[(.?)\] Milestone 1'
+    state = re.search(expr, content, re.DOTALL).group(1)
+    infer_state = '✔' if state == 'x' else '❌'
+
+    # check milestone 2
+    expr = r'- \[(.?)\] Milestone 2'
+    state = re.search(expr, content, re.DOTALL).group(1)
+    training_state = '✔' if state == 'x' else '❌'
+
+    # add table
+    readme_link = f'https://github.com/open-mmlab/mmocr/blob/dev-1.x/{file}'
+    project_zoo += '### 模型状态 \n'
+    project_zoo += '| 推理 | 训练 | README |\n'
+    project_zoo += '| --------- | -------- | ------ |\n'
+    project_zoo += f'|️{infer_state}|{training_state}|[link]({readme_link})|\n'
+
+with open('projectzoo.md', 'w') as f:
+    f.write(project_zoo)
diff --git a/mmocr-dev-1.x/docs/zh_cn/stats.py b/mmocr-dev-1.x/docs/zh_cn/stats.py
new file mode 100755
index 0000000000000000000000000000000000000000..96f814fcf8226f27c2b49b1136c25271d80371a5
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/stats.py
@@ -0,0 +1,128 @@
+#!/usr/bin/env python
+# Copyright (c) OpenMMLab. All rights reserved.
+import functools as func
+import re
+from os.path import basename, splitext
+
+import numpy as np
+import titlecase
+from weight_list import gen_weight_list
+
+
+def title2anchor(name):
+    return re.sub(r'-+', '-', re.sub(r'[^a-zA-Z0-9]', '-',
+                                     name.strip().lower())).strip('-')
+
+
+# Count algorithms
+
+files = [
+    'backbones.md', 'textdet_models.md', 'textrecog_models.md', 'kie_models.md'
+]
+
+stats = []
+
+for f in files:
+    with open(f) as content_file:
+        content = content_file.read()
+
+    # Remove the blackquote notation from the paper link under the title
+    # for better layout in readthedocs
+    expr = r'(^## \s*?.*?\s+?)>\s*?(\[.*?\]\(.*?\))'
+    content = re.sub(expr, r'\1\2', content, flags=re.MULTILINE)
+    with open(f, 'w') as content_file:
+        content_file.write(content)
+
+    # title
+    title = content.split('\n')[0].replace('#', '')
+
+    # count papers
+    exclude_papertype = ['ABSTRACT', 'IMAGE']
+    exclude_expr = ''.join(f'(?!{s})' for s in exclude_papertype)
+    expr = rf'<!-- \[{exclude_expr}([A-Z]+?)\] -->'\
+        r'\s*\n.*?\btitle\s*=\s*{(.*?)}'
+    papers = {(papertype, titlecase.titlecase(paper.lower().strip()))
+              for (papertype, paper) in re.findall(expr, content, re.DOTALL)}
+    print(papers)
+    # paper links
+    revcontent = '\n'.join(list(reversed(content.splitlines())))
+    paperlinks = {}
+    for _, p in papers:
+        q = p.replace('\\', '\\\\').replace('?', '\\?')
+        paper_link = title2anchor(
+            re.search(
+                rf'\btitle\s*=\s*{{\s*{q}\s*}}.*?\n## (.*?)\s*[,;]?\s*\n',
+                revcontent, re.DOTALL | re.IGNORECASE).group(1))
+        paperlinks[p] = f'[{p}]({splitext(basename(f))[0]}.md#{paper_link})'
+    paperlist = '\n'.join(
+        sorted(f'    - [{t}] {paperlinks[x]}' for t, x in papers))
+    # count configs
+    configs = {
+        x.lower().strip()
+        for x in re.findall(r'https.*configs/.*\.py', content)
+    }
+
+    # count ckpts
+    ckpts = {
+        x.lower().strip()
+        for x in re.findall(r'https://download.*\.pth', content)
+        if 'mmocr' in x
+    }
+
+    statsmsg = f"""
+## [{title}]({f})
+
+* 模型权重文件数量： {len(ckpts)}
+* 配置文件数量： {len(configs)}
+* 论文数量： {len(papers)}
+{paperlist}
+
+    """
+
+    stats.append((papers, configs, ckpts, statsmsg))
+
+allpapers = func.reduce(lambda a, b: a.union(b), [p for p, _, _, _ in stats])
+allconfigs = func.reduce(lambda a, b: a.union(b), [c for _, c, _, _ in stats])
+allckpts = func.reduce(lambda a, b: a.union(b), [c for _, _, c, _ in stats])
+msglist = '\n'.join(x for _, _, _, x in stats)
+
+papertypes, papercounts = np.unique([t for t, _ in allpapers],
+                                    return_counts=True)
+countstr = '\n'.join(
+    [f'   - {t}: {c}' for t, c in zip(papertypes, papercounts)])
+
+# get model list
+weight_list = gen_weight_list()
+
+modelzoo = f"""
+# 总览
+
+## 权重
+以下是可用于[推理](user_guides/inference.md)的权重列表。
+
+为了便于使用，有的权重可能会存在多个较短的别名，这在表格中将用“/”分隔。
+
+例如，表格中展示的 `DB_r18 / dbnet_resnet18_fpnc_1200e_icdar2015` 表示您可以使用
+`DB_r18` 或 `dbnet_resnet18_fpnc_1200e_icdar2015` 来初始化推理器：
+
+```python
+>>> from mmocr.apis import TextDetInferencer
+>>> inferencer = TextDetInferencer(model='DB_r18')
+>>> # 等价于
+>>> inferencer = TextDetInferencer(model='dbnet_resnet18_fpnc_1200e_icdar2015')
+```
+
+{weight_list}
+
+## 统计数据
+
+* 模型权重文件数量： {len(allckpts)}
+* 配置文件数量： {len(allconfigs)}
+* 论文数量： {len(allpapers)}
+{countstr}
+
+{msglist}
+"""  # noqa
+
+with open('modelzoo.md', 'w') as f:
+    f.write(modelzoo)
diff --git a/mmocr-dev-1.x/docs/zh_cn/switch_language.md b/mmocr-dev-1.x/docs/zh_cn/switch_language.md
new file mode 100644
index 0000000000000000000000000000000000000000..7baa29992eb3b36ab2804b577d3bb76db8cc4233
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/switch_language.md
@@ -0,0 +1,3 @@
+## <a href='https://mmocr.readthedocs.io/en/dev-1.x/'>English</a>
+
+## <a href='https://mmocr.readthedocs.io/zh_CN/dev-1.x/'>简体中文</a>
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/config.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/config.md
new file mode 100644
index 0000000000000000000000000000000000000000..fd16af58e17dd85e76e037687a86f0bebfe70083
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/config.md
@@ -0,0 +1,719 @@
+# 配置文件
+
+MMOCR 主要使用 Python 文件作为配置文件。其配置文件系统的设计整合了模块化与继承的思想，方便用户进行各种实验。
+
+## 常见用法
+
+```{note}
+本小节建议结合 {external+mmengine:doc}`MMEngine: 配置(Config) <tutorials/config>` 中的初级用法共同阅读。
+```
+
+MMOCR 最常用的操作为三种：配置文件的继承，对 `_base_` 变量的引用以及对 `_base_` 变量的修改。对于 `_base_` 的继承与修改, MMEngine.Config 提供了两种语法，一种是针对 Python，Json， Yaml 均可使用的操作；另一种则仅适用于 Python 配置文件。在 MMOCR 中，我们**更推荐使用只针对Python的语法**，因此下文将以此为基础作进一步介绍。
+
+这里以 `configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py` 为例，说明常用的三种用法。
+
+```Python
+_base_ = [
+    '_base_dbnet_resnet18_fpnc.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_train.pipeline = _base_.train_pipeline
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+icdar2015_textdet_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)
+```
+
+### 配置文件的继承
+
+配置文件存在继承的机制，即一个配置文件 A 可以将另一个配置文件 B 作为自己的基础并直接继承其中的所有字段，从而避免了大量的复制粘贴。
+
+在 dbnet_resnet18_fpnc_1200e_icdar2015.py 中可以看到：
+
+```Python
+_base_ = [
+    '_base_dbnet_resnet18_fpnc.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+```
+
+上述语句会读取列表中的所有基础配置文件，它们中的所有字段都会被载入到 dbnet_resnet18_fpnc_1200e_icdar2015.py 中。我们可以通过在 Python 解释中运行以下语句，了解配置文件被解析后的结构：
+
+```Python
+from mmengine import Config
+db_config = Config.fromfile('configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py')
+print(db_config)
+```
+
+可以发现，被解析的配置包含了所有base配置中的字段和信息。
+
+```{note}
+请注意：各 _base_ 配置文件中不能存在同名变量。
+```
+
+### `_base_` 变量的引用
+
+有时，我们可能需要直接引用 `_base_` 配置中的某些字段，以避免重复定义。假设我们想要获取 `_base_` 配置中的变量 `pseudo`，就可以直接通过 `_base_.pseudo` 获得 `_base_` 配置中的变量。
+
+该语法已广泛用于 MMOCR 的配置中。MMOCR 中各个模型的数据集和管道（pipeline）配置都引用于*基本*配置。如在
+
+```Python
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+# ...
+train_dataloader = dict(
+    # ...
+    dataset=icdar2015_textdet_train)
+```
+
+### `_base_` 变量的修改
+
+在 MMOCR 中不同算法在不同数据集通常有不同的数据流水线（pipeline)，因此经常会会存在修改数据集中 `pipeline` 的场景。同时还存在很多场景需要修改 `_base_` 配置中的变量，例如想修改某个算法的训练策略，某个模型的某些算法模块（更换 backbone 等）。用户可以直接利用 Python 的语法直接修改引用的 `_base_` 变量。针对 dict，我们也提供了与类属性修改类似的方法，可以直接修改类属性修改字典内的内容。
+
+1. 字典
+
+   这里以修改数据集中的 `pipeline` 为例：
+
+   可以利用 Python 语法修改字典：
+
+   ```python
+   # 获取 _base_ 中的数据集
+   icdar2015_textdet_train = _base_.icdar2015_textdet_train
+   # 可以直接利用 Python 的 update 修改变量
+   icdar2015_textdet_train.update(pipeline=_base_.train_pipeline)
+   ```
+
+   也可以使用类属性的方法进行修改：
+
+   ```Python
+   # 获取 _base_ 中的数据集
+   icdar2015_textdet_train = _base_.icdar2015_textdet_train
+   # 类属性方法修改
+   icdar2015_textdet_train.pipeline = _base_.train_pipeline
+   ```
+
+2. 列表
+
+   假设 `_base_` 配置中的变量 `pseudo = [1, 2, 3]`， 需要修改为 `[1, 2, 4]`:
+
+   ```Python
+   # pseudo.py
+   pseudo = [1, 2, 3]
+   ```
+
+   可以直接重写：
+
+   ```Python
+   _base_ = ['pseudo.py']
+   pseudo = [1, 2, 4]
+   ```
+
+   或者利用 Python 语法修改列表：
+
+   ```Python
+   _base_ = ['pseudo.py']
+   pseudo = _base_.pseudo
+   pseudo[2] = 4
+   ```
+
+### 命令行修改配置
+
+有时候我们只希望修部分配置，而不想修改配置文件本身。例如实验过程中想更换学习率，但是又不想重新写一个配置文件，可以通过命令行传入参数来覆盖相关配置。
+
+我们可以在命令行里传入 `--cfg-options`，并在其之后的参数直接修改对应字段，例如我们想在运行 train 的时候修改学习率，只需要在命令行执行：
+
+```Shell
+python tools/train.py example.py --cfg-options optim_wrapper.optimizer.lr=1
+```
+
+更多详细用法参考 {external+mmengine:ref}`MMEngine: 命令行修改配置 <命令行修改配置>`.
+
+## 配置内容
+
+通过配置文件与注册器的配合，MMOCR 可以在不侵入代码的前提下修改训练参数以及模型配置。具体而言，用户可以在配置文件中对如下模块进行自定义修改：环境配置、Hook 配置、日志配置、训练策略配置、数据相关配置、模型相关配置、评测配置、可视化配置。
+
+本文档将以文字检测算法 `DBNet` 和文字识别算法 `CRNN` 为例来详细介绍 Config 中的内容。
+
+<div id="env_config"></div>
+
+### 环境配置
+
+```Python
+default_scope = 'mmocr'
+env_cfg = dict(
+    cudnn_benchmark=True,
+    mp_cfg=dict(mp_start_method='fork', opencv_num_threads=0),
+    dist_cfg=dict(backend='nccl'))
+randomness = dict(seed=None)
+```
+
+主要包含三个部分：
+
+- 设置所有注册器的默认 `scope` 为 `mmocr`， 保证所有的模块首先从 `MMOCR` 代码库中进行搜索。若果该模块不存在，则继续从上游算法库 `MMEngine` 和 `MMCV` 中进行搜索，详见 {external+mmengine:doc}`MMEngine: 注册器 <tutorials/registry>`。
+
+- `env_cfg` 设置分布式环境配置， 更多配置可以详见 {external+mmengine:doc}`MMEngine: Runner <tutorials/runner>`。
+
+- `randomness` 设置 numpy， torch，cudnn 等随机种子，更多配置详见 {external+mmengine:doc}`MMEngine: Runner <tutorials/runner>`。
+
+<div id="hook_config"></div>
+
+### Hook 配置
+
+Hook 主要分为两个部分，默认 hook 以及自定义 hook。默认 hook 为所有任务想要运行所必须的配置，自定义 hook 一般服务于特定的算法或某些特定任务（目前为止 MMOCR 中没有自定义的 Hook）。
+
+```Python
+default_hooks = dict(
+    timer=dict(type='IterTimerHook'), # 时间记录，包括数据增强时间以及模型推理时间
+    logger=dict(type='LoggerHook', interval=1), # 日志打印间隔
+    param_scheduler=dict(type='ParamSchedulerHook'), # 更新学习率等超参
+    checkpoint=dict(type='CheckpointHook', interval=1),# 保存 checkpoint， interval控制保存间隔
+    sampler_seed=dict(type='DistSamplerSeedHook'), # 多机情况下设置种子
+    sync_buffer=dict(type='SyncBuffersHook'), # 多卡情况下，同步buffer
+    visualization=dict( # 可视化val 和 test 的结果
+        type='VisualizationHook',
+        interval=1,
+        enable=False,
+        show=False,
+        draw_gt=False,
+        draw_pred=False))
+ custom_hooks = []
+```
+
+这里简单介绍几个经常可能会变动的 hook，通用的修改方法参考[修改配置](#base-变量的修改)。
+
+- `LoggerHook`：用于配置日志记录器的行为。例如，通过修改 `interval` 可以控制日志打印的间隔，每 `interval` 次迭代 (iteration) 打印一次日志，更多设置可参考 [LoggerHook API](mmengine.hooks.LoggerHook)。
+
+- `CheckpointHook`：用于配置模型断点保存相关的行为，如保存最优权重，保存最新权重等。同样可以修改 `interval` 控制保存 checkpoint 的间隔。更多设置可参考 [CheckpointHook API](mmengine.hooks.CheckpointHook)
+
+- `VisualizationHook`：用于配置可视化相关行为，例如在验证或测试时可视化预测结果，**默认为关**。同时该 Hook 依赖[可视化配置](#可视化配置)。想要了解详细功能可以参考 [Visualizer](visualization.md)。更多配置可以参考 [VisualizationHook API](mmocr.engine.hooks.VisualizationHook)。
+
+如果想进一步了解默认 hook 的配置以及功能，可以参考 {external+mmengine:doc}`MMEngine: 钩子(Hook) <tutorials/hook>`。
+
+<div id="log_config"></div>
+
+### 日志配置
+
+此部分主要用来配置日志配置等级以及日志处理器。
+
+```Python
+log_level = 'INFO' # 日志记录等级
+log_processor = dict(type='LogProcessor',
+                        window_size=10,
+                        by_epoch=True)
+```
+
+- 日志配置等级与 {external+python:doc}`Python: logging <library/logging>` 的配置一致，
+
+- 日志处理器主要用来控制输出的格式，详细功能可参考 {external+mmengine:doc}`MMEngine: 记录日志 <advanced_tutorials/logging>`：
+
+  - `by_epoch=True` 表示按照epoch输出日志，日志格式需要和 `train_cfg` 中的 `type='EpochBasedTrainLoop'` 参数保持一致。例如想按迭代次数输出日志，就需要令  `log_processor` 中的 ` by_epoch=False` 的同时 `train_cfg` 中的 `type = 'IterBasedTrainLoop'`。
+
+  - `window_size` 表示损失的平滑窗口，即最近 `window_size` 次迭代的各种损失的均值。logger 中最终打印的 loss 值为各种损失的平均值。
+
+<div id="schedule_config"></div>
+
+### 训练策略配置
+
+此部分主要包含优化器设置、学习率策略和 `Loop` 设置。
+
+对不同算法任务(文字检测，文字识别，关键信息提取)，通常有自己任务常用的调参策略。这里列出了文字识别中的 `CRNN` 所用涉及的相应配置。
+
+```Python
+# 优化器
+optim_wrapper = dict(
+    type='OptimWrapper', optimizer=dict(type='Adadelta', lr=1.0))
+param_scheduler = [dict(type='ConstantLR', factor=1.0)]
+train_cfg = dict(type='EpochBasedTrainLoop',
+                    max_epochs=5, # 训练轮数
+                    val_interval=1) # 评测间隔
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+```
+
+- `optim_wrapper` : 主要包含两个部分，优化器封装 (OptimWrapper) 以及优化器 (Optimizer)。详情使用信息可见 {external+mmengine:doc}`MMEngine: 优化器封装 <tutorials/optim_wrapper>`
+
+  - 优化器封装支持不同的训练策略，包括混合精度训练(AMP)、梯度累加和梯度截断。
+
+  - 优化器设置中支持了 PyTorch 所有的优化器，所有支持的优化器见 {external+torch:ref}`PyTorch 优化器列表 <optim:algorithms>`。
+
+- `param_scheduler` : 学习率调整策略，支持大部分 PyTorch 中的学习率调度器，例如 `ExponentialLR`，`LinearLR`，`StepLR`，`MultiStepLR` 等，使用方式也基本一致，所有支持的调度器见[调度器接口文档](mmengine.optim.scheduler), 更多功能可以参考 {external+mmengine:doc}`MMEngine: 优化器参数调整策略 <tutorials/param_scheduler>`。
+
+- `train/test/val_cfg` : 任务的执行流程，MMEngine 提供了四种流程：`EpochBasedTrainLoop`, `IterBasedTrainLoop`, `ValLoop`, `TestLoop` 更多可以参考 {external+mmengine:doc}`MMEngine: 循环控制器 <design/runner>`。
+
+### 数据相关配置
+
+<div id="dataset_config"></id>
+
+#### 数据集配置
+
+主要用于配置两个方向：
+
+- 数据集的图像与标注文件的位置。
+
+- 数据增强相关的配置。在 OCR 领域中，数据增强通常与模型强相关。
+
+更多参数配置可以参考[数据基类](#TODO)。
+
+数据集字段的命名规则在 MMOCR 中为：
+
+```Python
+{数据集名称缩写}_{算法任务}_{训练/测试/验证} = dict(...)
+```
+
+- 数据集缩写：见 [数据集名称对应表](#TODO)
+
+- 算法任务：文本检测-det，文字识别-rec，关键信息提取-kie
+
+- 训练/测试/验证：数据集用于训练，测试还是验证
+
+以识别为例，使用 Syn90k 作为训练集，以 icdar2013 和 icdar2015 作为测试集配置如下：
+
+```Python
+# 识别数据集配置
+mjsynth_textrecog_train = dict(
+    type='OCRDataset',
+    data_root='data/rec/Syn90k/',
+    data_prefix=dict(img_path='mnt/ramdisk/max/90kDICT32px'),
+    ann_file='train_labels.json',
+    test_mode=False,
+    pipeline=None)
+
+icdar2013_textrecog_test = dict(
+    type='OCRDataset',
+    data_root='data/rec/icdar_2013/',
+    data_prefix=dict(img_path='Challenge2_Test_Task3_Images/'),
+    ann_file='test_labels.json',
+    test_mode=True,
+    pipeline=None)
+
+icdar2015_textrecog_test = dict(
+    type='OCRDataset',
+    data_root='data/rec/icdar_2015/',
+    data_prefix=dict(img_path='ch4_test_word_images_gt/'),
+    ann_file='test_labels.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+<div id="pipeline_config"></div>
+
+#### 数据流水线配置
+
+MMOCR 中，数据集的构建与数据准备是相互解耦的。也就是说，`OCRDataset` 等数据集构建类负责完成标注文件的读取与解析功能；而数据变换方法（Data Transforms）则进一步实现了数据读取、数据增强、数据格式化等相关功能。
+
+同时一般情况下训练和测试会存在不同的增强策略，因此一般会存在训练流水线（train_pipeline）和测试流水线（test_pipeline）。更多信息可以参考[数据流水线](../basic_concepts/transforms.md)
+
+- 训练流水线的数据增强流程通常为：数据读取(LoadImageFromFile)->标注信息读取(LoadXXXAnntation)->数据增强->数据格式化(PackXXXInputs)。
+
+- 测试流水线的数据增强流程通常为：数据读取(LoadImageFromFile)->数据增强->标注信息读取(LoadXXXAnntation)->数据格式化(PackXXXInputs)。
+
+由于 OCR 任务的特殊性，一般情况下不同模型有不同数据增强的方式，相同模型在不同数据集一般也会有不同的数据增强方式。以 CRNN 为例：
+
+```Python
+# 数据增强
+train_pipeline = [
+    dict(
+        type='LoadImageFromFile',
+        color_type='grayscale',
+        ignore_empty=True,
+        min_size=5),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(type='Resize', scale=(100, 32), keep_ratio=False),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+test_pipeline = [
+    dict(
+        type='LoadImageFromFile',
+        color_type='grayscale'),
+    dict(
+        type='RescaleToHeight',
+        height=32,
+        min_width=32,
+        max_width=None,
+        width_divisor=16),
+    dict(type='LoadOCRAnnotations', with_text=True),
+    dict(
+        type='PackTextRecogInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'valid_ratio'))
+]
+```
+
+<div id="dataloader_config"></div>
+
+#### Dataloader 配置
+
+主要为构造数据集加载器(dataloader)所需的配置信息，更多教程看参考 {external+torch:doc}`PyTorch 数据加载器 <data>`。
+
+```Python
+# Dataloader 部分
+train_dataloader = dict(
+    batch_size=64,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=[mjsynth_textrecog_train],
+        pipeline=train_pipeline))
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=dict(
+        type='ConcatDataset',
+        datasets=[icdar2013_textrecog_test, icdar2015_textrecog_test],
+        pipeline=test_pipeline))
+test_dataloader = val_dataloader
+```
+
+### 模型相关配置
+
+<div id="model_config"></div>
+
+#### 网络配置
+
+用于配置模型的网络结构，不同的算法任务有不同的网络结构。更多信息可以参考[网络结构](../basic_concepts/structures.md)
+
+##### 文本检测
+
+文本检测主要包含几个部分:
+
+- `data_preprocessor`: [数据处理器](mmocr.models.textdet.data_preprocessors.TextDetDataPreprocessor)
+- `backbone`: 特征提取网络
+- `neck`: 颈网络配置
+- `det_head`: 检测头网络配置
+  - `module_loss`: 模型损失函数配置
+  - `postprocessor`: 模型预测结果后处理配置
+
+我们以 DBNet 为例，介绍文字检测中模型配置：
+
+```Python
+model = dict(
+    type='DBNet',
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53],
+        std=[58.395, 57.12, 57.375],
+        bgr_to_rgb=True,
+        pad_size_divisor=32)
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=18,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet18'),
+        norm_eval=False,
+        style='caffe'),
+    neck=dict(
+        type='FPNC', in_channels=[64, 128, 256, 512], lateral_channels=256),
+    det_head=dict(
+        type='DBHead',
+        in_channels=256,
+        module_loss=dict(type='DBModuleLoss'),
+        postprocessor=dict(type='DBPostprocessor', text_repr_type='quad')))
+```
+
+##### 文本识别
+
+文本识别主要包含：
+
+- `data_processor`: [数据预处理配置](mmocr.models.textrec.data_processors.TextRecDataPreprocessor)
+- `preprocessor`: 网络预处理配置，如TPS等
+- `backbone`:特征提取配置
+- `encoder`: 编码器配置
+- `decoder`: 解码器配置
+  - `module_loss`: 解码器损失
+  - `postprocessor`: 解码器后处理
+  - `dictionary`: 字典配置
+
+以 CRNN 为例：
+
+```Python
+# 模型部分
+model = dict(
+   type='CRNN',
+   data_preprocessor=dict(
+        type='TextRecogDataPreprocessor', mean=[127], std=[127])
+    preprocessor=None,
+    backbone=dict(type='VeryDeepVgg', leaky_relu=False, input_channels=1),
+    encoder=None,
+    decoder=dict(
+        type='CRNNDecoder',
+        in_channels=512,
+        rnn_flag=True,
+        module_loss=dict(type='CTCModuleLoss', letter_case='lower'),
+        postprocessor=dict(type='CTCPostProcessor'),
+        dictionary=dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_padding=True)))
+```
+
+<div id="weight_config"></div>
+
+#### 权重加载配置
+
+可以通过 `load_from` 参数加载检查点（checkpoint）文件中的模型权重，只需要将 `load_from` 参数设置为检查点文件的路径即可。
+
+用户也可通过设置 `resume=True` ，加载检查点中的训练状态信息来恢复训练。当 `load_from` 和 `resume=True` 同时被设置时，执行器将加载 `load_from` 路径对应的检查点文件中的训练状态。
+
+如果仅设置 `resume=True`，执行器将会尝试从 `work_dir` 文件夹中寻找并读取最新的检查点文件
+
+```Python
+load_from = None # 加载checkpoint的路径
+resume = False # 是否 resume
+```
+
+更多可以参考 {external+mmengine:ref}`MMEngine: 加载权重或恢复训练 <加载权重或恢复训练>` 与 [OCR 进阶技巧-断点恢复训练](train_test.md#从断点恢复训练)。
+
+<div id="eval_config"></id>
+
+### 评测配置
+
+在模型验证和模型测试中，通常需要对模型精度做定量评测。MMOCR 通过评测指标(Metric)和评测器(Evaluator)来完成这一功能。更多可以参考{external+mmengine:doc}`MMEngine: 评测指标(Metric)和评测器(Evaluator) <tutorials/evaluation>` 和 [评测器](../basic_concepts/evaluation.md)
+
+评测部分包含两个部分，评测器和评测指标。接下来我们分部分展开讲解。
+
+#### 评测器
+
+评测器主要用来管理多个数据集以及多个 `Metric`。针对单数据集与多数据集情况，评测器分为了单数据集评测器与多数据集评测器，这两种评测器均可管理多个 `Metric`.
+
+单数据集评测器配置如下：
+
+```Python
+# 单个数据集 单个 Metric 情况
+val_evaluator = dict(
+    type='Evaluator',
+    metrics=dict())
+
+# 单个数据集 多个 Metric 情况
+val_evaluator = dict(
+    type='Evaluator',
+    metrics=[...])
+```
+
+在实现中默认为单数据集评测器，因此对单数据集评测情况下，一般情况下只需配置评测器，即为
+
+```Python
+# 单个数据集 单个 Metric 情况
+val_evaluator = dict()
+
+# 单个数据集 多个 Metric 情况
+val_evaluator = [...]
+```
+
+多数据集评测与单数据集评测存在两个位置上的不同：评测器类别与前缀。评测器类别必须为`MultiDatasetsEvaluator`且不能省略，前缀主要用来区分不同数据集在相同评测指标下的结果，请参考[多数据集评测](../basic_concepts/evaluation.md)。
+
+假设我们需要在 IC13 和 IC15 情况下测试精度，则配置如下：
+
+```Python
+# 多个数据集，单个 Metric 情况
+val_evaluator = dict(
+    type='MultiDatasetsEvaluator',
+    metrics=dict(),
+    dataset_prefixes=['IC13', 'IC15'])
+
+# 多个数据集，多个 Metric 情况
+val_evaluator = dict(
+    type='MultiDatasetsEvaluator',
+    metrics=[...],
+    dataset_prefixes=['IC13', 'IC15'])
+```
+
+#### 评测指标
+
+评测指标指不同度量精度的方法，同时可以多个评测指标共同使用，更多评测指标原理参考 {external+mmengine:doc}`MMEngine: 评测指标 <tutorials/evaluation>`，在 MMOCR 中不同算法任务有不同的评测指标。 更多 OCR 相关的评测指标可以参考 [评测指标](../basic_concepts/evaluation.md)。
+
+文字检测: [`HmeanIOUMetric`](mmocr.evaluation.metrics.HmeanIOUMetric)
+
+文字识别: [`WordMetric`](mmocr.evaluation.metrics.WordMetric)，[`CharMetric`](mmocr.evaluation.metrics.CharMetric)， [`OneMinusNEDMetric`](mmocr.evaluation.metrics.OneMinusNEDMetric)
+
+关键信息提取: [`F1Metric`](mmocr.evaluation.metrics.F1Metric)
+
+以文本检测为例说明，在单数据集评测情况下，使用单个 `Metric`：
+
+```Python
+val_evaluator = dict(type='HmeanIOUMetric')
+```
+
+以文本识别为例，对多个数据集(IC13 和 IC15)用多个 `Metric` (`WordMetric` 和 `CharMetric`)进行评测：
+
+```Python
+# 评测部分
+val_evaluator = dict(
+    type='MultiDatasetsEvaluator',
+    metrics=[
+        dict(
+            type='WordMetric',
+            mode=['exact', 'ignore_case', 'ignore_case_symbol']),
+        dict(type='CharMetric')
+    ],
+    dataset_prefixes=['IC13', 'IC15'])
+test_evaluator = val_evaluator
+```
+
+<div id="vis_config"></div>
+
+### 可视化配置
+
+每个任务配置该任务对应的可视化器。可视化器主要用于用户模型中间结果的可视化或存储，及 val 和 test 预测结果的可视化。同时可视化的结果可以通过可视化后端储存到不同的后端，比如 WandB，TensorBoard 等。常用修改操作可见[可视化](visualization.md)。
+
+文本检测的可视化默认配置如下：
+
+```Python
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextDetLocalVisualizer',  # 不同任务有不同的可视化器
+    vis_backends=vis_backends,
+    name='visualizer')
+```
+
+## 目录结构
+
+`MMOCR` 所有配置文件都放置在 `configs` 文件夹下。为了避免配置文件过长，同时提高配置文件的可复用性以及清晰性，MMOCR 利用 Config 文件的继承特性，将配置内容的八个部分做了拆分。因为每部分均与算法任务相关，因此 MMOCR 对每个任务在 Config 中提供了一个任务文件夹，即 `textdet` (文字检测任务)、`textrecog` (文字识别任务)、`kie` (关键信息提取)。同时各个任务算法配置文件夹下进一步划分为两个部分：`_base_` 文件夹与诸多算法文件夹：
+
+1. `_base_` 文件夹下主要存放与具体算法无关的一些通用配置文件，各部分依目录分为常用的数据集、常用的训练策略以及通用的运行配置。
+
+2. 算法配置文件夹中存放与算法强相关的配置项。算法配置文件夹主要分为两部分：
+
+   1. 算法的模型与数据流水线：OCR 领域中一般情况下数据增强策略与算法强相关，因此模型与数据流水线通常置于统一位置。
+
+   2. 算法在制定数据集上的特定配置：用于训练和测试的配置，将分散在不同位置的 *base* 配置汇总。同时可能会修改一些`_base_`中的变量，如batch size, 数据流水线，训练策略等
+
+最后的将配置内容中的各个模块分布在不同配置文件中，最终各配置文件内容如下:
+
+<style type="text/css">
+.tg  {border-collapse:collapse;border-spacing:0;}
+.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
+  overflow:hidden;padding:10px 5px;word-break:normal;}
+.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
+  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}
+.tg .tg-lboi{border-color:inherit;text-align:left;vertical-align:middle}
+.tg .tg-9wq8{border-color:inherit;text-align:center;vertical-align:middle}
+.tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top}
+</style>
+
+<table class="tg">
+<thead>
+  <tr>
+    <td class="tg-9wq8" rowspan="5">textdet<br></td>
+    <td class="tg-lboi" rowspan="3">_base_</td>
+    <td class="tg-9wq8">datasets</td>
+    <td class="tg-0pky">icdar_datasets.py<br>ctw1500.py<br>...</td>
+    <td class="tg-0pky"><a href="#dataset_config">数据集配置</a></td>
+  </tr>
+  <tr>
+    <td class="tg-9wq8">schedules</td>
+    <td class="tg-0pky">schedule_adam_600e.py<br>...</td>
+    <td class="tg-0pky"><a href="#schedule_config">训练策略配置</a></td>
+  </tr>
+  <tr>
+    <td class="tg-9wq8">default_runtime.py<br></td>
+    <td class="tg-0pky">-</td>
+    <td class="tg-0pky"><a href="#env_config">环境配置</a><br><a href="#hook_config">默认hook配置</a><br><a href="#log_config">日志配置</a> <br><a href="#weight_config">权重加载配置</a> <br><a href="#eval_config">评测配置</a> <br><a href="#vis_config">可视化配置</a></td>
+  </tr>
+  <tr>
+    <td class="tg-lboi" rowspan="2">dbnet</td>
+    <td class="tg-9wq8">_base_dbnet_resnet18_fpnc.py</td>
+    <td class="tg-0pky"><span style="font-weight:400;font-style:normal">-</span></td>
+    <td class="tg-0pky"><a href="#model_config">网络配置</a> <br><a href="#pipeline_config">数据流水线</a></td>
+  </tr>
+  <tr>
+    <td class="tg-9wq8">dbnet_resnet18_fpnc_1200e_icdar2015.py</td>
+    <td class="tg-0pky"><span style="font-weight:400;font-style:normal">-</span></td>
+    <td class="tg-0pky"><a href="#dataloader_config">Dataloader 配置</a> <br><a href="#pipeline_config">数据流水线(Optional)</a></td>
+  </tr>
+</thead>
+</table>
+
+最终目录结构如下：
+
+```Python
+configs
+├── textdet
+│   ├── _base_
+│   │   ├── datasets
+│   │   │   ├── icdar2015.py
+│   │   │   ├── icdar2017.py
+│   │   │   └── totaltext.py
+│   │   ├── schedules
+│   │   │   └── schedule_adam_600e.py
+│   │   └── default_runtime.py
+│   └── dbnet
+│       ├── _base_dbnet_resnet18_fpnc.py
+│       └── dbnet_resnet18_fpnc_1200e_icdar2015.py
+├── textrecog
+│   ├── _base_
+│   │   ├── datasets
+│   │   │   ├── icdar2015.py
+│   │   │   ├── icdar2017.py
+│   │   │   └── totaltext.py
+│   │   ├── schedules
+│   │   │   └── schedule_adam_base.py
+│   │   └── default_runtime.py
+│   └── crnn
+│       ├── _base_crnn_mini-vgg.py
+│       └── crnn_mini-vgg_5e_mj.py
+└── kie
+    ├── _base_
+    │   ├──datasets
+    │   └── default_runtime.py
+    └── sgdmr
+        └── sdmgr_novisual_60e_wildreceipt_openset.py
+```
+
+## 配置文件以及权重命名规则
+
+MMOCR 按照以下风格进行配置文件命名，代码库的贡献者需要遵循相同的命名规则。文件名总体分为四部分：算法信息，模块信息，训练信息和数据信息。逻辑上属于不同部分的单词之间用下划线 `'_'` 连接，同一部分有多个单词用短横线 `'-'` 连接。
+
+```Python
+{{算法信息}}_{{模块信息}}_{{训练信息}}_{{数据信息}}.py
+```
+
+- 算法信息(algorithm info)：算法名称，如 dbnet, crnn 等
+
+- 模块信息(module info)：按照数据流的顺序列举一些中间的模块，其内容依赖于算法任务，同时为了避免Config过长，会省略一些与模型强相关的模块。下面举例说明：
+
+  - 对于文字检测任务和关键信息提取任务:
+
+    ```Python
+    {{算法信息}}_{{backbone}}_{{neck}}_{{head}}_{{训练信息}}_{{数据信息}}.py
+    ```
+
+    一般情况下 head 位置一般为算法专有的 head，因此一般省略。
+
+  - 对于文本识别任务：
+
+    ```Python
+    {{算法信息}}_{{backbone}}_{{encoder}}_{{decoder}}_{{训练信息}}_{{数据信息}}.py
+    ```
+
+    一般情况下 encoder 和 decoder 位置一般为算法专有，因此一般省略。
+
+- 训练信息(training info)：训练策略的一些设置，包括 batch size，schedule 等
+
+- 数据信息(data info)：数据集名称、模态、输入尺寸等，如 icdar2015，synthtext 等
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/data_prepare/dataset_preparer.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/data_prepare/dataset_preparer.md
new file mode 100644
index 0000000000000000000000000000000000000000..f755833672b83cb380cf8edc1923f7a1b9d88472
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/data_prepare/dataset_preparer.md
@@ -0,0 +1,780 @@
+# 数据准备 (Beta)
+
+```{note}
+Dataset Preparer 目前仍处在公测阶段，欢迎尝鲜试用！如遇到任何问题，请及时向我们反馈。
+```
+
+## 一键式数据准备脚本
+
+MMOCR 提供了统一的一站式数据集准备脚本 `prepare_dataset.py`。
+
+仅需一行命令即可完成数据的下载、解压、格式转换，及基础配置的生成。
+
+```bash
+python tools/dataset_converters/prepare_dataset.py [-h] [--nproc NPROC] [--task {textdet,textrecog,textspotting,kie}] [--splits SPLITS [SPLITS ...]] [--lmdb] [--overwrite-cfg] [--dataset-zoo-path DATASET_ZOO_PATH] datasets [datasets ...]
+```
+
+| 参数               | 类型                       | 说明                                                                                                  |
+| ------------------ | -------------------------- | ----------------------------------------------------------------------------------------------------- |
+| dataset_name       | str                        | （必须）需要准备的数据集名称。                                                                        |
+| --nproc            | str                        | 使用的进程数，默认为 4。                                                                              |
+| --task             | str                        | 将数据集格式转换为指定任务的 MMOCR 格式。可选项为： 'textdet', 'textrecog', 'textspotting' 和 'kie'。 |
+| --splits           | \['train', 'val', 'test'\] | 希望准备的数据集分割，可以接受多个参数。默认为 `train val test`。                                     |
+| --lmdb             | str                        | 把数据储存为 LMDB 格式，仅当任务为 `textrecog` 时生效。                                               |
+| --overwrite-cfg    | str                        | 若数据集的基础配置已经在 `configs/{task}/_base_/datasets` 中存在，依然重写该配置                      |
+| --dataset-zoo-path | str                        | 存放数据库配置文件的路径。若不指定，则默认为 `./dataset_zoo`                                          |
+
+例如，以下命令展示了如何使用该脚本为 ICDAR2015 数据集准备文本检测任务所需的数据。
+
+```bash
+python tools/dataset_converters/prepare_dataset.py icdar2015 --task textdet --overwrite-cfg
+```
+
+该脚本也支持同时准备多个数据集，例如，以下命令展示了如何使用该脚本同时为 ICDAR2015 和 TotalText 数据集准备文本识别任务所需的数据。
+
+```bash
+python tools/dataset_converters/prepare_dataset.py icdar2015 totaltext --task textrecog --overwrite-cfg
+```
+
+进一步了解 Dataset Preparer 支持的数据集，您可以浏览[支持的数据集文档](./datasetzoo.md)。一些需要手动准备的数据集也列在了 [文字检测](./det.md) 和 [文字识别](./recog.md) 内。
+
+对于中国境内的用户，我们也推荐通过开源数据平台[OpenDataLab](https://opendatalab.com/)来下载数据，以获得更好的下载体验。数据下载后，参考脚本中 `data_obtainer` 的 `save_name` 字段，将文件放在 `data/cache/` 下并重新运行脚本即可。
+
+## 进阶用法
+
+### LMDB 格式
+
+在文本识别任务中，通常使用 LMDB 格式来存储数据，以加快数据的读取速度。在使用 `prepare_dataset.py` 脚本准备数据时，可以通过 `--lmdb` 参数来指定将数据转换为 LMDB 格式。例如：
+
+```bash
+python tools/dataset_converters/prepare_dataset.py icdar2015 --task textrecog --lmdb
+```
+
+数据集准备完成后，Dataset Preparer 会在 `configs/textrecog/_base_/datasets/` 中生成 `icdar2015_lmdb.py` 配置。你可以继承该配置，并将 `dataloader` 指向 LMDB 数据集。然而，LMDB 数据集的读取需要配合 [`LoadImageFromNDArray`](mmocr.datasets.transforms.LoadImageFromNDArray)，因此你也同样需要修改 `pipeline`。
+
+例如，想要将 `configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py` 的训练集改为刚刚生成的 icdar2015，则需要作如下修改：
+
+1. 修改 `configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py`:
+
+   ```python
+   _base_ = [
+        '../_base_/datasets/icdar2015_lmdb.py',  # 指向 icdar2015 lmdb 数据集
+         ... # 省略
+    ]
+
+    train_list = [_base_.icdar2015_lmdb_textrecog_train]
+    ...
+   ```
+
+2. 修改 `configs/textrecog/crnn/_base_crnn_mini-vgg.py` 中的 `train_pipeline`, 将 `LoadImageFromFile` 改为 `LoadImageFromNDArray`：
+
+   ```python
+   train_pipeline = [
+    dict(
+        type='LoadImageFromNDArray',
+        color_type='grayscale',
+        file_client_args=file_client_args,
+        ignore_empty=True,
+        min_size=2),
+    ...
+   ]
+   ```
+
+## 设计
+
+OCR 数据集数量众多，不同的数据集有着不同的语言，不同的标注格式，不同的场景等。 数据集的使用情况一般有两种，一种是快速的了解数据集的相关信息，另一种是在使用数据集训练模型。为了满足这两种使用场景MMOCR 提供数据集自动化准备脚本，数据集自动化准备脚本使用了模块化的设计，极大地增强了扩展性，用户能够很方便地配置其他公开数据集或私有数据集。数据集自动化准备脚本的配置文件被统一存储在 `dataset_zoo/` 目录下，用户可以在该目录下找到所有已由 MMOCR 官方支持的数据集准备脚本配置文件。该文件夹的目录结构如下：
+
+```text
+dataset_zoo/
+├── icdar2015
+│   ├── metafile.yml
+│   ├── sample_anno.md
+│   ├── textdet.py
+│   ├── textrecog.py
+│   └── textspotting.py
+└── wildreceipt
+    ├── metafile.yml
+    ├── sample_anno.md
+    ├── kie.py
+    ├── textdet.py
+    ├── textrecog.py
+    └── textspotting.py
+```
+
+### 数据集相关信息
+
+数据集的相关信息包括数据集的标注格式、数据集的标注示例、数据集的基本统计信息等。虽然在每个数据集的官网中都有这些信息，但是这些信息分散在各个数据集的官网中，用户需要花费大量的时间来挖掘数据集的基本信息。因此，MMOCR 设计了一些范式，它可以帮助用户快速了解数据集的基本信息。 MMOCR 将数据集的相关信息分为两个部分，一部分是数据集的基本信息包括包括发布年份，论文作者，以及版权等其他信息，另一部分是数据集的标注信息，包括数据集的标注格式、数据集的标注示例。每一部分 MMOCR 都会提供一个范式，贡献者可以根据范式来填写数据集的基本信息，使用用户就可以快速了解数据集的基本信息。 根据数据集的基本信息 MMOCR 提供了一个 `metafile.yml` 文件，其中存放了对应数据集的基本信息，包括发布年份，论文作者，以及版权等其他信息，这样用户就可以快速了解数据集的基本信息。该文件在数据集准备过程中并不是强制要求的（因此用户在使用添加自己的私有数据集时可以忽略该文件），但为了用户更好地了解各个公开数据集的信息，MMOCR 建议用户在使用数据集准备脚本前阅读对应的元文件信息，以了解该数据集的特征是否符合用户需求。MMOCR 以 ICDAR2015 作为示例， 其示例内容如下所示：
+
+```yaml
+Name: 'Incidental Scene Text IC15'
+Paper:
+  Title: ICDAR 2015 Competition on Robust Reading
+  URL: https://rrc.cvc.uab.es/files/short_rrc_2015.pdf
+  Venue: ICDAR
+  Year: '2015'
+  BibTeX: '@inproceedings{karatzas2015icdar,
+  title={ICDAR 2015 competition on robust reading},
+  author={Karatzas, Dimosthenis and Gomez-Bigorda, Lluis and Nicolaou, Anguelos and Ghosh, Suman and Bagdanov, Andrew and Iwamura, Masakazu and Matas, Jiri and Neumann, Lukas and Chandrasekhar, Vijay Ramaseshan and Lu, Shijian and others},
+  booktitle={2015 13th international conference on document analysis and recognition (ICDAR)},
+  pages={1156--1160},
+  year={2015},
+  organization={IEEE}}'
+Data:
+  Website: https://rrc.cvc.uab.es/?ch=4
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: CC BY 4.0
+    Link: https://creativecommons.org/licenses/by/4.0/
+```
+
+具体地，MMOCR 在下表中列出每个字段对应的含义：
+
+| 字段名           | 含义                                                                  |
+| :--------------- | :-------------------------------------------------------------------- |
+| Name             | 数据集的名称                                                          |
+| Paper.Title      | 数据集论文的标题                                                      |
+| Paper.URL        | 数据集论文的链接                                                      |
+| Paper.Venue      | 数据集论文发表的会议/期刊名称                                         |
+| Paper.Year       | 数据集论文发表的年份                                                  |
+| Paper.BibTeX     | 数据集论文的引用的 BibTex                                             |
+| Data.Website     | 数据集的官方网站                                                      |
+| Data.Language    | 数据集支持的语言                                                      |
+| Data.Scene       | 数据集支持的场景，如 `Natural Scene`, `Document`, `Handwritten` 等    |
+| Data.Granularity | 数据集支持的粒度，如 `Character`, `Word`, `Line` 等                   |
+| Data.Tasks       | 数据集支持的任务，如 `textdet`, `textrecog`, `textspotting`, `kie` 等 |
+| Data.License     | 数据集的许可证信息，如果不存在许可证，则使用 `N/A` 填充               |
+| Data.Format      | 数据集标注文件的格式，如 `.txt`, `.xml`, `.json` 等                   |
+| Data.Keywords    | 数据集的特性关键词，如 `Horizontal`, `Vertical`, `Curved` 等          |
+
+对于数据集的标注信息，MMOCR 提供了一个 `sample_anno.md` 文件，用户可以根据范式来填写数据集的标注信息，这样用户就可以快速了解数据集的标注信息。MMOCR 以 ICDAR2015 作为示例， 其示例内容如下所示：
+
+````markdown
+    **Text Detection**
+
+    ```text
+    # x1,y1,x2,y2,x3,y3,x4,y4,trans
+
+    377,117,463,117,465,130,378,130,Genaxis Theatre
+    493,115,519,115,519,131,493,131,[06]
+    374,155,409,155,409,170,374,170,###
+    ```
+````
+
+`sample_anno.md` 中包含数据集针对不同任务的标注信息，包含标注文件的格式(text 对应的是 txt 文件，标注文件的格式也可以在 meta.yml 中找到)，标注的示例。
+
+通过上述两个文件的信息，用户就可以快速了解数据集的基本信息，同时 MMOCR 汇总了所有数据集的基本信息，用户可以在 [Overview](.overview.md) 中查看所有数据集的基本信息。
+
+### 数据集使用
+
+经过数十年的发展，OCR 领域涌现出了一系列的相关数据集，这些数据集往往采用风格各异的格式来提供文本的标注文件，使得用户在使用这些数据集时不得不进行格式转换。因此，为了方便用户进行数据集准备，我们设计了 Dataset Preaprer，帮助用户快速将数据集准备为 MMOCR 支持的格式, 详见[数据格式文档](../../basic_concepts/datasets.md)。下图展示了 Dataset Preparer 的典型运行流程。
+
+![DataPrepare](https://user-images.githubusercontent.com/24622904/226505258-acb8d5cb-0fa9-4906-956c-8e4c5d895dd7.jpeg)
+
+由图可见，Dataset Preparer 在运行时，会依次执行以下操作：
+
+1. 对训练集、验证集和测试集，由各 preparer 进行：
+
+   1. [数据集的下载、解压、移动（Obtainer）](#数据集下载解压移动-obtainer)
+   2. [匹配标注与图像（Gatherer）](#数据集收集-gatherer)
+   3. [解析原标注（Parser）](#数据集解析-parser)
+   4. [打包标注为统一格式（Packer）](#数据集转换-packer)
+   5. [保存标注（Dumper）](#标注保存-dumper)
+
+2. 删除文件（Delete）
+
+3. 生成数据集的配置文件（Config Generator）
+
+为了便于应对各种数据集的情况，MMOCR 将每个部分均设计为可插拔的模块，并允许用户通过 dataset_zoo/ 下的配置文件对数据集准备流程进行配置。这些配置文件采用了 Python 格式，其使用方法与 MMOCR 算法库的其他配置文件完全一致，详见[配置文件文档](../config.md)。
+
+在 `dataset_zoo/` 下，每个数据集均占有一个文件夹，文件夹下会以任务名命名配置文件，以区分不同任务下的配置。以 ICDAR2015 文字检测部分为例，示例配置 `dataset_zoo/icdar2015/textdet.py` 如下所示：
+
+```python
+data_root = 'data/icdar2015'
+cache_path = 'data/cache'
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_training_images.zip',
+                save_name='ic15_textdet_train_img.zip',
+                md5='c51cbace155dcc4d98c8dd19d378f30d',
+                content=['image'],
+                mapping=[['ic15_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'ch4_training_localization_transcription_gt.zip',
+                save_name='ic15_textdet_train_gt.zip',
+                md5='3bfaf1988960909014f7987d2343060b',
+                content=['annotation'],
+                mapping=[['ic15_textdet_train_gt', 'annotations/train']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+    parser=dict(type='ICDARTxtTextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+test_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_test_images.zip',
+                save_name='ic15_textdet_test_img.zip',
+                md5='97e4c1ddcf074ffcc75feff2b63c35dd',
+                content=['image'],
+                mapping=[['ic15_textdet_test_img', 'textdet_imgs/test']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge4_Test_Task4_GT.zip',
+                save_name='ic15_textdet_test_gt.zip',
+                md5='8bce173b06d164b98c357b0eb96ef430',
+                content=['annotation'],
+                mapping=[['ic15_textdet_test_gt', 'annotations/test']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+    parser=dict(type='ICDARTxtTextDetAnnParser', encoding='utf-8-sig'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+
+delete = ['annotations', 'ic15_textdet_test_img', 'ic15_textdet_train_img']
+config_generator = dict(type='TextDetConfigGenerator')
+```
+
+#### 数据集下载、解压、移动 (Obtainer)
+
+Dataset Preparer 中，`obtainer` 模块负责了数据集的下载、解压和移动。如今，MMOCR 暂时只提供了 `NaiveDataObtainer`。通常来说，内置的 `NaiveDataObtainer` 即可完成绝大部分可以通过直链访问的数据集的下载，并支持解压、移动文件和重命名等操作。然而，MMOCR 暂时不支持自动下载存储在百度或谷歌网盘等需要登陆才能访问资源的数据集。 这里简要介绍一下 `NaiveDataObtainer`.
+
+| 字段名     | 含义                                                       |
+| ---------- | ---------------------------------------------------------- |
+| cache_path | 数据集缓存路径，用于存储数据集准备过程中下载的压缩包等文件 |
+| data_root  | 数据集存储的根目录                                         |
+| files      | 数据集文件列表，用于描述数据集的下载信息                   |
+
+`files` 字段是一个列表，列表中的每个元素都是一个字典，用于描述一个数据集文件的下载信息。如下表所示：
+
+| 字段名            | 含义                                                                 |
+| ----------------- | -------------------------------------------------------------------- |
+| url               | 数据集文件的下载链接                                                 |
+| save_name         | 数据集文件的保存名称                                                 |
+| md5 (可选)        | 数据集文件的 md5 值，用于校验下载的文件是否完整                      |
+| split （可选）    | 数据集文件所属的数据集划分，如 `train`，`test` 等，该字段可以空缺    |
+| content （可选）  | 数据集文件的内容，如 `image`，`annotation` 等，该字段可以空缺        |
+| mapping  （可选） | 数据集文件的解压映射，用于指定解压后的文件存储的位置，该字段可以空缺 |
+
+同时，Dataset Preparer 存在以下约定：
+
+- 不同类型的数据集的图片统一移动到对应类别 `{taskname}_imgs/{split}/`文件夹下，如 `textdet_imgs/train/`。
+- 对于一个标注文件包含所有图像的标注信息的情况，标注移到到`annotations/{split}.*`文件中。 如 `annotations/train.json`。
+- 对于一个标注文件包含一个图像的标注信息的情况，所有的标注文件移动到`annotations/{split}/`文件中。 如 `annotations/train/`。
+- 对于一些其他的特殊情况，比如所有训练、测试、验证的图像都在一个文件夹下，可以将图像移动到自己设定的文件夹下，比如 `{taskname}_imgs/imgs/`，同时要在后续的 `gatherer` 模块中指定图像的存储位置。
+
+示例配置如下：
+
+```python
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/ch4_training_images.zip',
+                save_name='ic15_textdet_train_img.zip',
+                md5='c51cbace155dcc4d98c8dd19d378f30d',
+                content=['image'],
+                mapping=[['ic15_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'ch4_training_localization_transcription_gt.zip',
+                save_name='ic15_textdet_train_gt.zip',
+                md5='3bfaf1988960909014f7987d2343060b',
+                content=['annotation'],
+                mapping=[['ic15_textdet_train_gt', 'annotations/train']]),
+        ]),
+```
+
+#### 数据集收集 (Gatherer)
+
+`gatherer` 遍历数据集目录下的文件，将图像与标注文件一一对应，并整理出一份文件列表供 `parser` 读取。因此，首先需要知道当前数据集下，图片文件与标注文件匹配的规则。OCR 数据集有两种常用标注保存形式，一种为多个标注文件对应多张图片，一种则为单个标注文件对应多张图片，如：
+
+```text
+多对多
+├── {taskname}_imgs/{split}/img_img_1.jpg
+├── annotations/{split}/gt_img_1.txt
+├── {taskname}_imgs/{split}/img_2.jpg
+├── annotations/{split}/gt_img_2.txt
+├── {taskname}_imgs/{split}/img_3.JPG
+├── annotations/{split}/gt_img_3.txt
+
+单对多
+├── {taskname}/{split}/img_1.jpg
+├── {taskname}/{split}/img_2.jpg
+├── {taskname}/{split}/img_3.JPG
+├── annotations/gt.txt
+```
+
+具体设计如下所示
+![Gatherer](https://user-images.githubusercontent.com/24622904/224935300-9f27e471-e87d-42db-a11d-adc8f603a7c9.png)
+
+MMOCR 内置了 `PairGatherer` 与 `MonoGatherer` 来处理以上这两种常用情况。其中 `PairGatherer` 用于多对多的情况，`MonoGatherer` 用于单对多的情况。
+
+```{note}
+为了简化处理，gatherer 约定数据集的图片和标注需要分别储存在 `{taskname}_imgs/{split}/` 和 `annotations/` 下。特别地，对于多对多的情况，标注文件需要放置于 `annotations/{split}`。
+```
+
+- 在多对多的情况下，`PairGatherer` 需要按照一定的命名规则找到图片文件和对应的标注文件。首先，需要通过 `img_suffixes` 参数指定图片的后缀名，如上述例子中的 `img_suffixes=[.jpg,.JPG]`。此外，还需要通过[正则表达式](https://docs.python.org/3/library/re.html) `rule`, 来指定图片与标注文件的对应关系，其中，规则 `rule` 是一个**正则表达式对**，例如 `rule=[r'img_(\d+)\.([jJ][pP][gG])'，r'gt_img_\1.txt']`。 第一个正则表达式用于匹配图片文件名，`\d+` 用于匹配图片的序号，`([jJ][pP][gG])` 用于匹配图片的后缀名。 第二个正则表达式用于匹配标注文件名，其中 `\1` 则将匹配到的图片序号与标注文件序号对应起来。示例配置为
+
+```python
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg', '.JPG'],
+        rule=[r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt']),
+```
+
+- 单对多的情况通常比较简单，用户只需要指定标注文件名即可。对于训练集示例配置为
+
+```python
+    gatherer=dict(type='MonoGatherer', ann_name='train.txt'),
+```
+
+MMOCR 同样对 `Gatherer` 的返回值做了约定，`Gatherer` 会返回两个元素的元组，第一个元素为图像路径列表(包含所有图像路径) 或者所有图像所在的文件夹， 第二个元素为标注文件路径列表(包含所有标注文件路径)或者标注文件的路径(该标注文件包含所有图像标注信息)。
+具体而言，`PairGatherer` 的返回值为(图像路径列表， 标注文件路径列表)，示例如下：
+
+```python
+    (['{taskname}_imgs/{split}/img_1.jpg', '{taskname}_imgs/{split}/img_2.jpg', '{taskname}_imgs/{split}/img_3.JPG'],
+    ['annotations/{split}/gt_img_1.txt', 'annotations/{split}/gt_img_2.txt', 'annotations/{split}/gt_img_3.txt'])
+```
+
+`MonoGatherer` 的返回值为(图像文件夹路径， 标注文件路径)， 示例为：
+
+```python
+    ('{taskname}/{split}', 'annotations/gt.txt')
+```
+
+#### 数据集解析 (Parser)
+
+`Parser` 主要用于解析原始的标注文件，因为原始标注情况多种多样，因此 MMOCR 提供了 `BaseParser` 作为基类，用户可以继承该类来实现自己的 `Parser`。在 `BaseParser` 中，MMOCR 设计了两个接口：`parse_files` 和 `parse_file`，约定在其中进行标注的解析。而对于 `Gatherer` 的两种不同输入情况（多对多、单对多），这两个接口的实现则应有所不同。
+
+- `BaseParser` 默认处理**多对多**的情况。其中，由 `parer_files` 将数据并行分发至多个 `parse_file` 进程，并由每个 `parse_file` 分别进行单个图像标注的解析。
+- 对于**单对多**的情况，用户则需要重写 `parse_files`，以实现加载标注，并返回规范的结果。
+
+`BaseParser` 的接口定义如下所示：
+
+```python
+class BaseParser:
+
+    def __call__(self, img_paths, ann_paths):
+        return self.parse_files(img_paths, ann_paths)
+
+    def parse_files(self, img_paths: Union[List[str], str],
+                    ann_paths: Union[List[str], str]) -> List[Tuple]:
+        samples = track_parallel_progress_multi_args(
+            self.parse_file, (img_paths, ann_paths), nproc=self.nproc)
+        return samples
+
+    @abstractmethod
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+
+        raise NotImplementedError
+```
+
+为了保证后续模块的统一性，MMOCR 对 `parse_files` 与 `parse_file` 的返回值做了约定。 `parse_file` 的返回值为一个元组，元组中的第一个元素为图像路径，第二个元素为标注信息。标注信息为一个列表，列表中的每个元素为一个字典，字典中的字段为`poly`, `text`, `ignore`，如下所示：
+
+```python
+# An example of returned values:
+(
+    'imgs/train/xxx.jpg',
+    [
+        dict(
+            poly=[0, 1, 1, 1, 1, 0, 0, 0],
+            text='hello',
+            ignore=False),
+        ...
+    ]
+)
+```
+
+`parse_files` 的输出为一个列表，列表中的每个元素为 `parse_file` 的返回值。 示例为：
+
+```python
+[
+    (
+        'imgs/train/xxx.jpg',
+        [
+            dict(
+                poly=[0, 1, 1, 1, 1, 0, 0, 0],
+                text='hello',
+                ignore=False),
+            ...
+        ]
+    ),
+    ...
+]
+```
+
+#### 数据集转换 (Packer)
+
+`packer` 主要是将数据转化到统一的标注格式, 因为输入的数据为 Parsers 的输出，格式已经固定， 因此 Packer 只需要将输入的格式转化为每种任务统一的标注格式即可。如今 MMOCR 支持的任务有文本检测、文本识别、端对端OCR 以及关键信息提取，MMOCR 针对每个任务均有对应的 Packer，如下所示：
+![Packer](https://user-images.githubusercontent.com/24622904/225248832-11be894f-7b44-4ffa-83e1-8478c37b5e63.png)
+
+对于文字检测、端对端OCR及关键信息提取，MMOCR 均有唯一对应的 `Packer`。而在文字识别领域， MMOCR 则提供了两种 `Packer`，分别为 `TextRecogPacker` 和 `TextRecogCropPacker`，其原因在与文字识别的数据集存在两种情况：
+
+- 每个图像均为一个识别样本，`parser` 返回的标注信息仅为一个`dict(text='xxx')`，此时使用 `TextRecogPacker` 即可。
+- 数据集没有将文字从图像中裁剪出来，本质是一个端对端OCR的标注，包含了文字的位置信息以及对应的文本信息，`TextRecogCropPacker` 会将文字从图像中裁剪出来，然后再转化成文字识别的统一格式。
+
+#### 标注保存 (Dumper)
+
+`dumper` 来决定要将数据保存为何种格式。目前，MMOCR 支持 `JsonDumper`， `WildreceiptOpensetDumper`，及  `TextRecogLMDBDumper`。他们分别用于将数据保存为标准的 MMOCR Json 格式、Wildreceipt 格式，及文本识别领域学术界常用的 LMDB 格式。
+
+#### 临时文件清理 (Delete)
+
+在处理数据集时，往往会产生一些不需要的临时文件。这里可以以列表的形式传入这些文件或文件夹，在结束转换时即会删除。
+
+#### 生成基础配置 (ConfigGenerator)
+
+为了在数据集准备完毕后可以自动生成基础配置，目前，MMOCR 按任务实现了 `TextDetConfigGenerator`、`TextRecogConfigGenerator` 和 `TextSpottingConfigGenerator`。它们支持的主要参数如下：
+
+| 字段名      | 含义                                                                                                                                                |
+| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------- |
+| data_root   | 数据集存储的根目录                                                                                                                                  |
+| train_anns  | 配置文件内训练集标注的路径。若不指定，则默认为 `[dict(ann_file='{taskname}_train.json', dataset_postfix='']`。                                      |
+| val_anns    | 配置文件内验证集标注的路径。若不指定，则默认为空。                                                                                                  |
+| test_anns   | 配置文件内测试集标注的路径。若不指定，则默认指向 `[dict(ann_file='{taskname}_test.json', dataset_postfix='']`。                                     |
+| config_path | 算法库存放配置文件的路径，配置生成器会将默认配置写入 `{config_path}/{taskname}/_base_/datasets/{dataset_name}.py` 下。若不指定，则默认为 `configs/` |
+
+在准备好数据集的所有文件后，配置生成器就会自动生成调用该数据集所需要的基础配置文件。下面给出了一个最小化的 `TextDetConfigGenerator` 配置示例：
+
+```python
+config_generator = dict(type='TextDetConfigGenerator')
+```
+
+生成后的文件默认会被置于 `configs/{task}/_base_/datasets/` 下。例如，本例中，icdar 2015 的基础配置文件就会被生成在 `configs/textdet/_base_/datasets/icdar2015.py` 下：
+
+```python
+icdar2015_textdet_data_root = 'data/icdar2015'
+
+icdar2015_textdet_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+icdar2015_textdet_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_test.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+假如数据集比较特殊，标注存在着几个变体，配置生成器也支持在基础配置中生成指向各自变体的变量，但这需要用户在设置时用不同的 `dataset_postfix` 区分。例如，ICDAR 2015 文字识别数据的测试集就存在着原版和 1811 两种标注版本，可以在 `test_anns` 中指定它们，如下所示：
+
+```python
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    test_anns=[
+        dict(ann_file='textrecog_test.json'),
+        dict(dataset_postfix='857', ann_file='textrecog_test_857.json')
+    ])
+```
+
+配置生成器会生成以下配置：
+
+```python
+icdar2015_textrecog_data_root = 'data/icdar2015'
+
+icdar2015_textrecog_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_train.json',
+    pipeline=None)
+
+icdar2015_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_test.json',
+    test_mode=True,
+    pipeline=None)
+
+icdar2015_1811_textrecog_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textrecog_data_root,
+    ann_file='textrecog_test_1811.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+有了该文件后，MMOCR 就能从模型的配置文件中直接导入该数据集到 `dataloader` 中使用（以下样例节选自 [`configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py`](/configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py)）：
+
+```python
+_base_ = [
+    '../_base_/datasets/icdar2015.py',
+    # ...
+]
+
+# dataset settings
+icdar2015_textdet_train = _base_.icdar2015_textdet_train
+icdar2015_textdet_test = _base_.icdar2015_textdet_test
+# ...
+
+train_dataloader = dict(
+    dataset=icdar2015_textdet_train)
+
+val_dataloader = dict(
+    dataset=icdar2015_textdet_test)
+
+test_dataloader = val_dataloader
+```
+
+```{note}
+除非用户在运行脚本的时候手动指定了 `overwrite-cfg`，配置生成器默认不会自动覆盖已经存在的基础配置文件。
+```
+
+## 向 Dataset Preparer 添加新的数据集
+
+### 添加公开数据集
+
+MMOCR 已经支持了许多[常用的公开数据集](./datasetzoo.md)。如果你想用的数据集还没有被支持，并且你也愿意为 MMOCR 开源社区[贡献代码](../../notes/contribution_guide.md)，你可以按照以下步骤来添加一个新的数据集。
+
+接下来以添加 **ICDAR2013** 数据集为例，展示如何一步一步地添加一个新的公开数据集。
+
+#### 添加 `metafile.yml`
+
+首先，确认 `dataset_zoo/` 中不存在准备添加的数据集。然后我们先新建以待添加数据集命名的文件夹，如 `icdar2013/`（通常，使用不包含符号的小写英文字母及数字来命名数据集）。在 `icdar2013/` 文件夹中，新建 `metafile.yml` 文件，并按照以下模板来填充数据集的基本信息：
+
+```yaml
+Name: 'Incidental Scene Text IC13'
+Paper:
+  Title: ICDAR 2013 Robust Reading Competition
+  URL: https://www.imlab.jp/publication_data/1352/icdar_competition_report.pdf
+  Venue: ICDAR
+  Year: '2013'
+  BibTeX: '@inproceedings{karatzas2013icdar,
+  title={ICDAR 2013 robust reading competition},
+  author={Karatzas, Dimosthenis and Shafait, Faisal and Uchida, Seiichi and Iwamura, Masakazu and i Bigorda, Lluis Gomez and Mestre, Sergi Robles and Mas, Joan and Mota, David Fernandez and Almazan, Jon Almazan and De Las Heras, Lluis Pere},
+  booktitle={2013 12th international conference on document analysis and recognition},
+  pages={1484--1493},
+  year={2013},
+  organization={IEEE}}'
+Data:
+  Website: https://rrc.cvc.uab.es/?ch=2
+  Language:
+    - English
+  Scene:
+    - Natural Scene
+  Granularity:
+    - Word
+  Tasks:
+    - textdet
+    - textrecog
+    - textspotting
+  License:
+    Type: N/A
+    Link: N/A
+  Format: .txt
+  Keywords:
+    - Horizontal
+```
+
+#### 添加标注示例
+
+最后，可以在 `dataset_zoo/icdar2013/` 目录下添加标注示例文件 `sample_anno.md` 以帮助文档脚本在生成文档时添加标注示例，标注示例文件是一个 Markdown 文件，其内容通常包含了单个样本的原始数据格式。例如，以下代码块展示了 ICDAR2013 数据集的数据样例文件：
+
+````markdown
+  **Text Detection**
+
+  ```text
+  # train split
+  # x1 y1 x2 y2 "transcript"
+
+  158 128 411 181 "Footpath"
+  443 128 501 169 "To"
+  64 200 363 243 "Colchester"
+
+  # test split
+  # x1, y1, x2, y2, "transcript"
+
+  38, 43, 920, 215, "Tiredness"
+  275, 264, 665, 450, "kills"
+  0, 699, 77, 830, "A"
+  ```
+````
+
+#### 添加对应任务的配置文件
+
+在 `dataset_zoo/icdar2013` 中，接着添加以任务名称命名的 `.py` 配置文件。如 `textdet.py`，`textrecog.py`，`textspotting.py`，`kie.py` 等。配置模板如下所示：
+
+```python
+data_root = ''
+data_cache = 'data/cache'
+train_prepare = dict(
+    obtainer=dict(
+        type='NaiveObtainer',
+        data_cache=data_cache,
+        files=[
+            dict(
+                url='xx',
+                md5='',
+                save_name='xxx',
+                mapping=list())
+              ]),
+    gatherer=dict(type='xxxGatherer', **kwargs),
+    parser=dict(type='xxxParser', **kwargs),
+    packer=dict(type='TextxxxPacker'), # 对应任务的 Packer
+    dumper=dict(type='JsonDumper'),
+)
+test_prepare = dict(
+    obtainer=dict(
+        type='NaiveObtainer',
+        data_cache=data_cache,
+        files=[
+            dict(
+                url='xx',
+                md5='',
+                save_name='xxx',
+                mapping=list())
+              ]),
+    gatherer=dict(type='xxxGatherer', **kwargs),
+    parser=dict(type='xxxParser', **kwargs),
+    packer=dict(type='TextxxxPacker'), # 对应任务的 Packer
+    dumper=dict(type='JsonDumper'),
+)
+```
+
+以文件检测任务为例，来介绍配置文件的具体内容。
+一般情况下用户无需重新实现新的 `obtainer`, `gatherer`, `packer` 或 `dumper`，但是通常需要根据数据集的标注格式实现新的 `parser`。
+对于 `obtainer` 的配置这里不在做过的介绍，可以参考 [数据集下载、解压、移动](#数据集下载解压移动-obtainer)。
+针对 `gatherer`，通过观察获取的 ICDAR2013 数据集文件发现，其每一张图片都有一个对应的 `.txt` 格式的标注文件：
+
+```text
+data_root
+├── textdet_imgs/train/
+│   ├── img_1.jpg
+│   ├── img_2.jpg
+│   └── ...
+├── annotations/train/
+│   ├── gt_img_1.txt
+│   ├── gt_img_2.txt
+│   └── ...
+```
+
+且每个标注文件名与图片的对应关系为：`gt_img_1.txt` 对应 `img_1.jpg`，以此类推。因此可以使用 `PairGatherer` 来进行匹配。
+
+```python
+gatherer=dict(
+      type='PairGatherer',
+      img_suffixes=['.jpg'],
+      rule=[r'(\w+)\.jpg', r'gt_\1.txt'])
+```
+
+规则 `rule` 第一个正则表达式用于匹配图片文件名，第二个正则表达式用于匹配标注文件名。在这里，使用 `(\w+)` 来匹配图片文件名，使用 `gt_\1.txt` 来匹配标注文件名，其中 `\1` 表示第一个正则表达式匹配到的内容。即，实现了将 `img_xx.jpg` 替换为 `gt_img_xx.txt` 的功能。
+
+接下来，需要实现 `parser`，即将原始标注文件解析为标准格式。通常来说，用户在添加新的数据集前，可以浏览已支持数据集的[详情页](./datasetzoo.md)，并查看是否已有相同格式的数据集。如果已有相同格式的数据集，则可以直接使用该数据集的 `parser`。否则，则需要实现新的格式解析器。
+
+数据格式解析器被统一存储在 `mmocr/datasets/preparers/parsers` 目录下。所有的 `parser` 都需要继承 `BaseParser`，并实现 `parse_file` 或 `parse_files` 方法。具体可以参考[数据集解析](#数据集解析)
+
+通过观察 ICDAR2013 数据集的标注文件：
+
+```text
+158 128 411 181 "Footpath"
+443 128 501 169 "To"
+64 200 363 243 "Colchester"
+542, 710, 938, 841, "break"
+87, 884, 457, 1021, "could"
+517, 919, 831, 1024, "save"
+```
+
+我们发现内置的 `ICDARTxtTextDetAnnParser` 已经可以满足需求，因此可以直接使用该 `parser`，并将其配置到 `preparer` 中。
+
+```python
+parser=dict(
+     type='ICDARTxtTextDetAnnParser',
+     remove_strs=[',', '"'],
+     encoding='utf-8',
+     format='x1 y1 x2 y2 trans',
+     separator=' ',
+     mode='xyxy')
+```
+
+其中，由于标注文件中混杂了多余的引号 `“”` 和逗号 `,`，可以通过指定 `remove_strs=[',', '"']` 来进行移除。另外在 `format` 中指定了标注文件的格式，其中 `x1 y1 x2 y2 trans` 表示标注文件中的每一行包含了四个坐标和一个文本内容，且坐标和文本内容之间使用空格分隔（`separator`=' '）。另外，需要指定 `mode` 为 `xyxy`，表示标注文件中的坐标是左上角和右下角的坐标，这样以来，`ICDARTxtTextDetAnnParser` 即可将该格式的标注解析为统一格式。
+
+对于 `packer`，以文件检测任务为例，其 `packer` 为 `TextDetPacker`，其配置如下：
+
+```python
+packer=dict(type='TextDetPacker')
+```
+
+最后，指定 `dumper`，这里一般情况下保存为json格式，其配置如下：
+
+```python
+dumper=dict(type='JsonDumper')
+```
+
+经过上述配置后，针对 ICDAR2013 训练集的配置文件如下：
+
+```python
+train_preparer = dict(
+    obtainer=dict(
+        type='NaiveDataObtainer',
+        cache_path=cache_path,
+        files=[
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Training_Task12_Images.zip',
+                save_name='ic13_textdet_train_img.zip',
+                md5='a443b9649fda4229c9bc52751bad08fb',
+                content=['image'],
+                mapping=[['ic13_textdet_train_img', 'textdet_imgs/train']]),
+            dict(
+                url='https://rrc.cvc.uab.es/downloads/'
+                'Challenge2_Training_Task1_GT.zip',
+                save_name='ic13_textdet_train_gt.zip',
+                md5='f3a425284a66cd67f455d389c972cce4',
+                content=['annotation'],
+                mapping=[['ic13_textdet_train_gt', 'annotations/train']]),
+        ]),
+    gatherer=dict(
+        type='PairGatherer',
+        img_suffixes=['.jpg'],
+        rule=[r'(\w+)\.jpg', r'gt_\1.txt']),
+    parser=dict(
+        type='ICDARTxtTextDetAnnParser',
+        remove_strs=[',', '"'],
+        format='x1 y1 x2 y2 trans',
+        separator=' ',
+        mode='xyxy'),
+    packer=dict(type='TextDetPacker'),
+    dumper=dict(type='JsonDumper'),
+)
+```
+
+为了在数据集准备完毕后可以自动生成基础配置， 还需要配置一下对应任务的 `config_generator`。
+
+在本例中，因为为文字检测任务，仅需要设置 Generator 为 `TextDetConfigGenerator`即可
+
+```python
+config_generator = dict(type='TextDetConfigGenerator', )
+```
+
+### 添加私有数据集
+
+待更新...
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/data_prepare/kie.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/data_prepare/kie.md
new file mode 100644
index 0000000000000000000000000000000000000000..ce8d146272dd287465885bf0ed78439d34c7e18a
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/data_prepare/kie.md
@@ -0,0 +1,40 @@
+# 关键信息提取
+
+```{note}
+我们正努力往 [Dataset Preparer](./dataset_preparer.md) 中增加更多数据集。对于 [Dataset Preparer](./dataset_preparer.md) 暂未能完整支持的数据集，本页提供了一系列手动下载的步骤，供有需要的用户使用。
+```
+
+## 概览
+
+关键信息提取任务的数据集，文件目录应按如下配置：
+
+```text
+└── wildreceipt
+  ├── class_list.txt
+  ├── dict.txt
+  ├── image_files
+  ├── test.txt
+  └── train.txt
+```
+
+## 准备步骤
+
+### WildReceipt
+
+- 下载并解压 [wildreceipt.tar](https://download.openmmlab.com/mmocr/data/wildreceipt.tar)
+
+### WildReceiptOpenset
+
+- 准备好 [WildReceipt](#WildReceipt)。
+- 转换 WildReceipt 成 OpenSet 格式:
+
+```bash
+# 你可以运行以下命令以获取更多可用参数：
+# python tools/data/kie/closeset_to_openset.py -h
+python tools/data/kie/closeset_to_openset.py data/wildreceipt/train.txt data/wildreceipt/openset_train.txt
+python tools/data/kie/closeset_to_openset.py data/wildreceipt/test.txt data/wildreceipt/openset_test.txt
+```
+
+```{note}
+[这篇教程](../tutorials/kie_closeset_openset.md)里讲述了更多 CloseSet 和 OpenSet 数据格式之间的区别。
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/dataset_prepare.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/dataset_prepare.md
new file mode 100644
index 0000000000000000000000000000000000000000..a0e3d0bad86a0f2eb130fb333e7a8047e5d6f533
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/dataset_prepare.md
@@ -0,0 +1,153 @@
+# 数据集准备
+
+## 前言
+
+经过数十年的发展，OCR 领域涌现出了一系列的相关数据集，这些数据集往往采用风格各异的格式来提供文本的标注文件，使得用户在使用这些数据集时不得不进行格式转换。因此，为了方便用户进行数据集准备，我们提供了[一键式的数据准备脚本](./data_prepare/dataset_preparer.md)，使得用户仅需使用一行命令即可完成数据集准备的全部步骤。
+
+在这一节，我们将介绍一个典型的数据集准备流程：
+
+1. [下载数据集并将其格式转换为 MMOCR 支持的格式](#数据集下载及格式转换)
+2. [修改配置文件](#修改配置文件)
+
+然而，如果你已经有了 MMOCR 支持的格式的数据集，那么第一步就不是必须的。你可以阅读[数据集类及标注格式](../basic_concepts/datasets.md#数据集类及标注格式)来了解更多细节。
+
+## 数据集下载及格式转换
+
+以 ICDAR 2015 数据集的文本检测任务准备步骤为例，你可以执行以下命令来完成数据集准备：
+
+```shell
+python tools/dataset_converters/prepare_dataset.py icdar2015 --task textdet
+```
+
+命令执行完成后，数据集将被下载并转换至 MMOCR 格式，文件目录结构如下：
+
+```text
+data/icdar2015
+├── textdet_imgs
+│   ├── test
+│   └── train
+├── textdet_test.json
+└── textdet_train.json
+```
+
+数据准备完毕以后，你也可以通过使用我们提供的数据集浏览工具 [browse_dataset.py](./useful_tools.md#数据集可视化工具) 来可视化数据集的标签是否被正确生成，例如：
+
+```bash
+python tools/analysis_tools/browse_dataset.py configs/textdet/_base_/datasets/icdar2015.py
+```
+
+## 修改配置文件
+
+### 单数据集训练
+
+在使用新的数据集时，我们需要对其图像、标注文件的路径等基础信息进行配置。`configs/xxx/_base_/datasets/` 路径下已预先配置了 MMOCR 中常用的数据集（当你使用 `prepare_dataset.py` 来准备数据集时，这个配置文件通常会在数据集准备就绪后自动生成），这里我们以 ICDAR 2015 数据集为例（见 `configs/textdet/_base_/datasets/icdar2015.py`）：
+
+```Python
+icdar2015_textdet_data_root = 'data/icdar2015' # 数据集根目录
+
+# 训练集配置
+icdar2015_textdet_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,               # 数据根目录
+    ann_file='textdet_train.json',                       # 标注文件名称
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),  # 数据过滤
+    pipeline=None)
+# 测试集配置
+icdar2015_textdet_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textdet_data_root,
+    ann_file='textdet_test.json',
+    test_mode=True,
+    pipeline=None)
+```
+
+在配置好数据集后，我们还需要在相应的算法模型配置文件中导入想要使用的数据集。例如，在 ICDAR 2015 数据集上训练 "DBNet_R18" 模型：
+
+```Python
+_base_ = [
+    '_base_dbnet_r18_fpnc.py',
+    '../_base_/datasets/icdar2015.py',  # 导入数据集配置文件
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_1200e.py',
+]
+
+icdar2015_textdet_train = _base_.icdar2015_textdet_train            # 指定训练集
+icdar2015_textdet_train.pipeline = _base_.train_pipeline   # 指定训练集使用的数据流水线
+icdar2015_textdet_test = _base_.icdar2015_textdet_test              # 指定测试集
+icdar2015_textdet_test.pipeline = _base_.test_pipeline     # 指定测试集使用的数据流水线
+
+train_dataloader = dict(
+    batch_size=16,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textdet_train)    # 在 train_dataloader 中指定使用的训练数据集
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textdet_test)    # 在 val_dataloader 中指定使用的验证数据集
+
+test_dataloader = val_dataloader
+```
+
+### 多数据集训练
+
+此外，基于 [`ConcatDataset`](mmocr.datasets.ConcatDataset)，用户还可以使用多个数据集组合来训练或测试模型。用户只需在配置文件中将 dataloader 中的 dataset 类型设置为 `ConcatDataset`，并指定对应的数据集列表即可。
+
+```Python
+train_list = [ic11, ic13, ic15]
+train_dataloader = dict(
+    dataset=dict(
+        type='ConcatDataset', datasets=train_list, pipeline=train_pipeline))
+```
+
+例如，以下配置使用了 MJSynth 数据集进行训练，并使用 6 个学术数据集（CUTE80, IIIT5K, SVT, SVTP, ICDAR2013, ICDAR2015）进行测试。
+
+```Python
+_base_ = [ # 导入所有需要使用的数据集配置
+    '../_base_/datasets/mjsynth.py',
+    '../_base_/datasets/cute80.py',
+    '../_base_/datasets/iiit5k.py',
+    '../_base_/datasets/svt.py',
+    '../_base_/datasets/svtp.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_adadelta_5e.py',
+    '_base_crnn_mini-vgg.py',
+]
+
+# 训练集列表
+train_list = [_base_.mjsynth_textrecog_train]
+# 测试集列表
+test_list = [
+    _base_.cute80_textrecog_test, _base_.iiit5k_textrecog_test, _base_.svt_textrecog_test,
+    _base_.svtp_textrecog_test, _base_.icdar2013_textrecog_test, _base_.icdar2015_textrecog_test
+]
+
+# 使用 ConcatDataset 来级联列表中的多个数据集
+train_dataset = dict(
+       type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+test_dataset = dict(
+       type='ConcatDataset', datasets=test_list, pipeline=_base_.test_pipeline)
+
+train_dataloader = dict(
+    batch_size=192 * 4,
+    num_workers=32,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=train_dataset)
+
+test_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    drop_last=False,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=test_dataset)
+
+val_dataloader = test_dataloader
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/inference.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/inference.md
new file mode 100644
index 0000000000000000000000000000000000000000..7b69dcee8c964aa60f06e4912467e9d5e9a9f011
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/inference.md
@@ -0,0 +1,534 @@
+# 推理
+
+在 OpenMMLab 中，所有的推理操作都被统一到了推理器 `Inferencer` 中。推理器被设计成为一个简洁易用的 API，它在不同的 OpenMMLab 库中都有着非常相似的接口。
+
+MMOCR 中存在两种不同的推理器：
+
+- **标准推理器**：MMOCR 中的每个基本任务都有一个标准推理器，即 `TextDetInferencer`（文本检测），`TextRecInferencer`（文本识别），`TextSpottingInferencer`（端到端 OCR） 和 `KIEInferencer`（关键信息提取）。它们具有非常相似的接口，具有标准的输入/输出协议，并且总体遵循 OpenMMLab 的设计。这些推理器也可以被串联在一起，以便对一系列任务进行推理。
+- **MMOCRInferencer**：我们还提供了 `MMOCRInferencer`，一个专门为 MMOCR 设计的便捷推理接口。它封装和链接了 MMOCR 中的所有推理器，因此用户可以使用此推理器对图像执行一系列任务，并直接获得最终结果。*但是，它的接口与标准推理器有一些不同，并且为了简单起见，可能会牺牲一些标准的推理器功能。*
+
+对于新用户，我们建议使用 **MMOCRInferencer** 来测试不同模型的组合。
+
+如果你是开发人员并希望将模型集成到自己的项目中，我们建议使用**标准推理器**，因为它们更灵活且标准化，并具有完整的功能。
+
+## 基础用法
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+目前，`MMOCRInferencer` 可以对以下任务进行推理：
+
+- 文本检测
+- 文本识别
+- OCR（文本检测 + 文本识别）
+- 关键信息提取（文本检测 + 文本识别 + 关键信息提取）
+- *OCR（text spotting）*（即将推出）
+
+为了便于使用，`MMOCRInferencer` 向用户提供了 Python 接口和命令行接口。例如，如果你想要对 demo/demo_text_ocr.jpg 进行 OCR 推理，使用 `DBNet` 作为文本检测模型，`CRNN` 作为文本识别模型，只需执行以下命令:
+
+::::{tabs}
+
+:::{code-tab} python
+>>> from mmocr.apis import MMOCRInferencer
+>>> # 读取模型
+>>> ocr = MMOCRInferencer(det='DBNet', rec='SAR')
+>>> # 进行推理并可视化结果
+>>> ocr('demo/demo_text_ocr.jpg', show=True)
+:::
+
+:::{code-tab} bash 命令行
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec SAR --show
+:::
+::::
+
+可视化结果将被显示在一个新窗口中：
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/220563262-e9c1ab52-9b96-4d9c-bcb6-f55ff0b9e1be.png" height="250"/>
+</div>
+
+```{note}
+如果你在没有 GUI 的服务器上运行 MMOCR，或者是通过禁用 X11 转发的 SSH 隧道运行该指令，`show`  选项将不起作用。然而，你仍然可以通过设置 `out_dir` 和 `save_vis=True` 参数将可视化数据保存到文件。阅读 [储存结果](#储存结果) 了解详情。
+```
+
+根据初始化参数，`MMOCRInferencer`可以在不同模式下运行。例如，如果初始化时指定了 `det`、`rec` 和 `kie`，它可以在 KIE 模式下运行。
+
+::::{tabs}
+
+:::{code-tab} python
+>>> kie = MMOCRInferencer(det='DBNet', rec='SAR', kie='SDMGR')
+>>> kie('demo/demo_kie.jpeg', show=True)
+:::
+
+:::{code-tab} bash 命令行
+python tools/infer.py demo/demo_kie.jpeg --det DBNet --rec SAR --kie SDMGR --show
+:::
+
+::::
+
+可视化结果如下：
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/220569700-fd4894bc-f65a-405e-95e7-ebd2d614aedd.png" height="250"/>
+</div>
+<br />
+
+可以见到，MMOCRInferencer 的 Python 接口与命令行接口的使用方法非常相似。下文将以 Python 接口为例，介绍 MMOCRInferencer 的具体用法。关于命令行接口的更多信息，请参考 [命令行接口](#命令行接口)。
+
+
+````
+
+````{group-tab} 标准推理器
+
+通常，OpenMMLab 中的所有标准推理器都具有非常相似的接口。下面的例子展示了如何使用 `TextDetInferencer` 对单个图像进行推理。
+
+```python
+>>> from mmocr.apis import TextDetInferencer
+>>> # 读取模型
+>>> inferencer = TextDetInferencer(model='DBNet')
+>>> # 推理
+>>> inferencer('demo/demo_text_ocr.jpg', show=True)
+```
+
+可视化结果如图：
+
+<div align="center">
+    <img src="https://user-images.githubusercontent.com/22607038/221418215-2431d0e9-e16e-4deb-9c52-f8b86801706a.png" height="250"/>
+</div>
+
+````
+
+`````
+
+## 初始化
+
+每个推理器必须使用一个模型进行初始化。初始化时，可以手动选择推理设备。
+
+### 模型初始化
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+对于每个任务，`MMOCRInferencer` 需要两个参数 `xxx` 和 `xxx_weights` （例如 `det` 和 `det_weights`）以对模型进行初始化。此处将以`det`和`det_weights`为例来说明一些典型的初始化模型的方法。
+
+- 要用 MMOCR 的预训练模型进行推理，只需要把它的名字传给参数 `det`，权重将自动从 OpenMMLab 的模型库中下载和加载。[此处](../modelzoo.md#权重)记录了 MMOCR 中可以通过该方法初始化的所有模型。
+
+  ```python
+  >>> MMOCRInferencer(det='DBNet')
+  ```
+
+- 要加载自定义的配置和权重，你可以把配置文件的路径传给 `det`，把权重的路径传给 `det_weights`。
+
+  ```python
+  >>> MMOCRInferencer(det='path/to/dbnet_config.py', det_weights='path/to/dbnet.pth')
+  ```
+
+如果需要查看更多的初始化方法，请点击“标准推理器”选项卡。
+
+````
+
+````{group-tab} 标准推理器
+
+每个标准的 `Inferencer` 都接受两个参数，`model` 和 `weights` 。在 MMOCRInferencer 中，这两个参数分别对应 `xxx` 和 `xxx_weights` （例如 `det` 和 `det_weights`）。
+
+- `model` 接受模型的名称或配置文件的路径作为输入。模型的名称从 [model-index.yml](https://github.com/open-mmlab/mmocr/blob/1.x/model-index.yml) 中的模型的元文件（[示例](https://github.com/open-mmlab/mmocr/blob/1.x/configs/textdet/dbnet/metafile.yml) ）中获取。你可以在[此处](../modelzoo.md#权重)找到可用权重的列表。
+
+- `weights` 接受权重文件的路径。
+
+<br />
+
+此处列举了一些常见的初始化模型的方法。
+
+- 你可以通过传递模型的名称给 `model` 来推理 MMOCR 的预训练模型。权重将会自动从 OpenMMLab 的模型库中下载并加载。
+
+  ```python
+  >>> from mmocr.apis import TextDetInferencer
+  >>> inferencer = TextDetInferencer(model='DBNet')
+  ```
+
+  ```{note}
+  模型与推理器的任务种类必须匹配。
+  ```
+
+  你可以通过将权重的路径或 URL 传递给 `weights` 来让推理器加载自定义的权重。
+
+  ```python
+  >>> inferencer = TextDetInferencer(model='DBNet', weights='path/to/dbnet.pth')
+  ```
+
+- 如果有自定义的配置和权重，你可以将配置文件的路径传递给 `model`，将权重的路径传递给 `weights`。
+
+  ```python
+  >>> inferencer = TextDetInferencer(model='path/to/dbnet_config.py', weights='path/to/dbnet.pth')
+  ```
+
+- 默认情况下，[MMEngine](https://github.com/open-mmlab/mmengine/) 会在训练模型时自动将配置文件转储到权重文件中。如果你有一个在 MMEngine 上训练的权重，你也可以将权重文件的路径传递给 `weights`，而不需要指定 `model`：
+
+  ```python
+  >>> # 如果无法在权重中找到配置文件，则会引发错误
+  >>> inferencer = TextDetInferencer(weights='path/to/dbnet.pth')
+  ```
+
+- 传递配置文件到 `model` 而不指定 `weight` 则会产生一个随机初始化的模型。
+
+````
+`````
+
+### 推理设备
+
+每个推理器实例都会跟一个设备绑定。默认情况下，最佳设备是由 [MMEngine](https://github.com/open-mmlab/mmengine/) 自动决定的。你也可以通过指定 `device` 参数来改变设备。例如，你可以使用以下代码在 GPU 1上创建一个推理器。
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+```python
+>>> inferencer = MMOCRInferencer(det='DBNet', device='cuda:1')
+```
+
+````
+
+````{group-tab} 标准推理器
+
+```python
+>>> inferencer = TextDetInferencer(model='DBNet', device='cuda:1')
+```
+
+````
+
+`````
+
+如要在 CPU 上创建一个推理器：
+
+`````{tabs}
+
+````{group-tab} MMOCRInferencer
+
+```python
+>>> inferencer = MMOCRInferencer(det='DBNet', device='cpu')
+```
+
+````
+
+````{group-tab} 标准推理器
+
+```python
+>>> inferencer = TextDetInferencer(model='DBNet', device='cpu')
+```
+
+````
+
+`````
+
+请参考 [torch.device](torch.device) 了解 `device` 参数支持的所有形式。
+
+## 推理
+
+当推理器初始化后，你可以直接传入要推理的原始数据，从返回值中获取推理结果。
+
+### 输入
+
+`````{tabs}
+
+````{tab} MMOCRInferencer / TextDetInferencer / TextRecInferencer / TextSpottingInferencer
+
+输入可以是以下任意一种格式：
+
+- str: 图像的路径/URL。
+
+  ```python
+  >>> inferencer('demo/demo_text_ocr.jpg')
+  ```
+
+- array: 图像的 numpy 数组。它应该是 BGR 格式。
+
+  ```python
+  >>> import mmcv
+  >>> array = mmcv.imread('demo/demo_text_ocr.jpg')
+  >>> inferencer(array)
+  ```
+
+- list: 基本类型的列表。列表中的每个元素都将单独处理。
+
+  ```python
+  >>> inferencer(['img_1.jpg', 'img_2.jpg])
+  >>> # 列表内混合类型也是允许的
+  >>> inferencer(['img_1.jpg', array])
+  ```
+
+- str: 目录的路径。目录中的所有图像都将被处理。
+
+  ```python
+  >>> inferencer('tests/data/det_toy_dataset/imgs/test/')
+  ```
+
+````
+
+````{tab} KIEInferencer
+
+输入可以是一个字典或者一个字典列表，其中每个字典包含以下键：
+
+- `img` (str 或者 ndarray): 图像的路径或图像本身。如果 KIE 推理器在无可视模式下使用，则不需要此键。如果它是一个 numpy 数组，则应该是 BGR 顺序编码的图片。
+- `img_shape` (tuple(int, int)): 图像的形状 (H, W)。仅在 KIE 推理器在无可视模式下使用且没有提供 `img` 时才需要。
+- `instances` (list[dict]): 实例列表。
+
+每个 `instance` 都应该包含以下键：
+
+```python
+{
+    # 一个嵌套列表，其中包含 4 个数字，表示实例的边界框，顺序为 (x1, y1, x2, y2)
+    "bbox": np.array([[x1, y1, x2, y2], [x1, y1, x2, y2], ...],
+                    dtype=np.int32),
+
+    # 文本列表
+    "texts": ['text1', 'text2', ...],
+}
+```
+
+````
+`````
+
+### 输出
+
+默认情况下，每个推理器都以字典格式返回预测结果。
+
+- `visualization` 包含可视化的预测结果。但默认情况下，它是一个空列表，除非 `return_vis=True`。
+
+- `predictions` 包含以 json-可序列化格式返回的预测结果。如下所示，内容因任务类型而异。
+
+  `````{tabs}
+
+  :::{group-tab} MMOCRInferencer
+
+  ```python
+  {
+      'predictions' : [
+        # 每个实例都对应于一个输入图像
+        {
+          'det_polygons': [...],  # 2d 列表，长度为 (N,)，格式为 [x1, y1, x2, y2, ...]
+          'det_scores': [...],  # 浮点列表，长度为（N, ）
+          'det_bboxes': [...],   # 2d 列表，形状为 (N, 4)，格式为 [min_x, min_y, max_x, max_y]
+          'rec_texts': [...],  # 字符串列表，长度为（N, ）
+          'rec_scores': [...],  # 浮点列表，长度为（N, ）
+          'kie_labels': [...],  # 节点标签，长度为 (N, )
+          'kie_scores': [...],  # 节点置信度，长度为 (N, )
+          'kie_edge_scores': [...],  # 边预测置信度, 形状为 (N, N)
+          'kie_edge_labels': [...]  # 边标签, 形状为 (N, N)
+        },
+        ...
+      ],
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  ```
+
+  :::
+
+  ````{group-tab} 标准推理器
+
+  ::::{tabs}
+  :::{code-tab} python TextDetInferencer
+
+  {
+      'predictions' : [
+        # 每个实例都对应于一个输入图像
+        {
+          'polygons': [...],  # 2d 列表，长度为 (N,)，格式为 [x1, y1, x2, y2, ...]
+          'bboxes': [...],  # 2d 列表，形状为 (N, 4)，格式为 [min_x, min_y, max_x, max_y]
+          'scores': [...]  # 浮点列表，长度为（N, ）
+        },
+        ...
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  :::
+
+  :::{code-tab} python TextRecInferencer
+  {
+      'predictions' : [
+        # 每个实例都对应于一个输入图像
+        {
+          'text': '...',  # 字符串
+          'scores': 0.1,  # 浮点
+        },
+        ...
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  :::
+
+  :::{code-tab} python TextSpottingInferencer
+  {
+      'predictions' : [
+        # 每个实例都对应于一个输入图像
+        {
+          'polygons': [...],  # 2d 列表，长度为 (N,)，格式为 [x1, y1, x2, y2, ...]
+          'bboxes': [...],  # 2d 列表，形状为 (N, 4)，格式为 [min_x, min_y, max_x, max_y]
+          'scores': [...]  # 浮点列表，长度为（N, ）
+          'texts': ['...',]  # 字符串列表，长度为（N, ）
+        },
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  :::
+
+  :::{code-tab} python KIEInferencer
+  {
+      'predictions' : [
+        # 每个实例都对应于一个输入图像
+        {
+          'labels': [...],  # 节点标签，长度为 (N, )
+          'scores': [...],  # 节点置信度，长度为 (N, )
+          'edge_scores': [...],  # 边预测置信度, 形状为 (N, N)
+          'edge_labels': [...],  # 边标签, 形状为 (N, N)
+        },
+      ]
+      'visualization' : [
+        array(..., dtype=uint8),
+      ]
+  }
+  :::
+  ::::
+  ````
+
+  `````
+
+如果你想要从模型中获取原始输出，可以将 `return_datasamples` 设置为 `True` 来获取原始的 [DataSample](structures.md)，它将存储在 `predictions` 中。
+
+### 储存结果
+
+除了从返回值中获取预测结果，你还可以通过设置 `out_dir` 和 `save_pred`/`save_vis` 参数将预测结果和可视化结果导出到文件中。
+
+```python
+>>> inferencer('img_1.jpg', out_dir='outputs/', save_pred=True, save_vis=True)
+```
+
+结果目录结构如下：
+
+```text
+outputs
+├── preds
+│   └── img_1.json
+└── vis
+    └── img_1.jpg
+```
+
+文件名与对应的输入图像文件名相同。 如果输入图像是数组，则文件名将是从0开始的数字。
+
+### 批量推理
+
+你可以通过设置 `batch_size` 来自定义批量推理的批大小。 默认批大小为 1。
+
+## API
+
+这里列出了推理器详尽的参数列表。
+
+````{tabs}
+
+```{group-tab} MMOCRInferencer
+
+**MMOCRInferencer.\_\_init\_\_():**
+
+| 参数          | 类型                                      | 默认值 | 描述                                                                                                                           |
+| ------------- | ----------------------------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------ |
+| `det`         | str 或 [权重](../modelzoo.html#id2), 可选 | None   | 预训练的文本检测算法。它是配置文件的路径或者是 metafile 中定义的模型名称。                                                     |
+| `det_weights` | str, 可选                                 | None   | det 模型的权重文件的路径。                                                                                                     |
+| `rec`         | str 或 [权重](../modelzoo.html#id2), 可选 | None   | 预训练的文本识别算法。它是配置文件的路径或者是 metafile 中定义的模型名称。                                                     |
+| `rec_weights` | str, 可选                                 | None   | rec 模型的权重文件的路径。                                                                                                     |
+| `kie` \[1\]   | str 或 [权重](../modelzoo.html#id2), 可选 | None   | 预训练的关键信息提取算法。它是配置文件的路径或者是 metafile 中定义的模型名称。                                                 |
+| `kie_weights` | str, 可选                                 | None   | kie 模型的权重文件的路径。                                                                                                     |
+| `device`      | str, 可选                                 | None   | 推理使用的设备，接受 `torch.device` 允许的所有字符串。例如，'cuda:0' 或 'cpu'。如果为 None，将自动使用可用设备。 默认为 None。 |
+
+\[1\]: 当同时指定了文本检测和识别模型时，`kie` 才会生效。
+
+**MMOCRInferencer.\_\_call\_\_()**
+
+| 参数                 | 类型                    | 默认值     | 描述                                                                                           |
+| -------------------- | ----------------------- | ---------- | ---------------------------------------------------------------------------------------------- |
+| `inputs`             | str/list/tuple/np.array | **必需**   | 它可以是一个图片/文件夹的路径，一个 numpy 数组，或者是一个包含图片路径或 numpy 数组的列表/元组 |
+| `return_datasamples` | bool                    | False      | 是否将结果作为 DataSample 返回。如果为 False，结果将被打包成一个字典。                         |
+| `batch_size`         | int                     | 1          | 推理的批大小。                                                                                 |
+| `det_batch_size`     | int, 可选               | None       | 推理的批大小 (文本检测模型)。如果不为 None，则覆盖 batch_size。                                    |
+| `rec_batch_size`     | int, 可选               | None       | 推理的批大小 (文本识别模型)。如果不为 None，则覆盖 batch_size。                                    |
+| `kie_batch_size`     | int, 可选               | None       | 推理的批大小 (关键信息提取模型)。如果不为 None，则覆盖 batch_size。                                |
+| `return_vis`         | bool                    | False      | 是否返回可视化结果。                                                                           |
+| `print_result`       | bool                    | False      | 是否将推理结果打印到控制台。                                                                   |
+| `show`               | bool                    | False      | 是否在弹出窗口中显示可视化结果。                                                               |
+| `wait_time`          | float                   | 0          | 弹窗展示可视化结果的时间间隔。                                                                 |
+| `out_dir`            | str                     | `results/` | 结果的输出目录。                                                                               |
+| `save_vis`           | bool                    | False      | 是否将可视化结果保存到 `out_dir`。                                                             |
+| `save_pred`          | bool                    | False      | 是否将推理结果保存到 `out_dir`。                                                               |
+
+```
+
+```{group-tab} 标准推理器
+
+**Inferencer.\_\_init\_\_():**
+
+| 参数      | 类型                                      | 默认值 | 描述                                                                                                                               |
+| --------- | ----------------------------------------- | ------ | ---------------------------------------------------------------------------------------------------------------------------------- |
+| `model`   | str 或 [权重](../modelzoo.html#id2), 可选 | None   | 路径到配置文件或者在 metafile 中定义的模型名称。                                                                                   |
+| `weights` | str, 可选                                 | None   | 权重文件的路径。                                                                                                                   |
+| `device`  | str, 可选                                 | None   | 推理使用的设备，接受 `torch.device` 允许的所有字符串。 例如，'cuda:0' 或 'cpu'。 如果为 None，则将自动使用可用设备。 默认为 None。 |
+
+**Inferencer.\_\_call\_\_()**
+
+| 参数                 | 类型                    | 默认值     | 描述                                                                                |
+| -------------------- | ----------------------- | ---------- | ----------------------------------------------------------------------------------- |
+| `inputs`             | str/list/tuple/np.array | **必需**   | 可以是图像的路径/文件夹，np 数组或列表/元组（带有图像路径或 np 数组）               |
+| `return_datasamples` | bool                    | False      | 是否将结果作为 DataSamples 返回。 如果为 False，则结果将被打包到一个 dict 中。      |
+| `batch_size`         | int                     | 1          | 推理批大小。                                                                        |
+| `progress_bar`       | bool                    | True       | 是否显示进度条。                                                                    |
+| `return_vis`         | bool                    | False      | 是否返回可视化结果。                                                                |
+| `print_result`       | bool                    | False      | 是否将推理结果打印到控制台。                                                        |
+| `show`               | bool                    | False      | 是否在弹出窗口中显示可视化结果。                                                    |
+| `wait_time`          | float                   | 0          | 弹窗展示可视化结果的时间间隔。                                                      |
+| `draw_pred`          | bool                    | True       | 是否绘制预测的边界框。 *仅适用于 `TextDetInferencer` 和 `TextSpottingInferencer`。* |
+| `out_dir`            | str                     | `results/` | 结果的输出目录。                                                                    |
+| `save_vis`           | bool                    | False      | 是否将可视化结果保存到 `out_dir`。                                                  |
+| `save_pred`          | bool                    | False      | 是否将推理结果保存到 `out_dir`。                                                    |
+
+```
+````
+
+## 命令行接口
+
+```{note}
+该节仅适用于 `MMOCRInferencer`.
+```
+
+`MMOCRInferencer` 的命令行形式可以通过 `tools/infer.py` 调用，大致形式如下：
+
+```bash
+python tools/infer.py INPUT_PATH [--det DET] [--det-weights ...] ...
+```
+
+其中，`INPUT_PATH` 为必须字段，内容应当为指向图片或文件目录的路径。其他参数与 Python 接口遵循的映射关系如下：
+
+- 在命令行中调用参数时，需要在 Python 接口的参数前面加上两个`-`，然后把下划线`_`替换成连字符`-`。例如， `out_dir` 会变成 `--out-dir`。
+- 对于布尔类型的参数，将参数放在命令中就相当于将其指定为 True。例如， `--show` 会将 `show` 参数指定为 True。
+
+此外，命令行中默认不会回显推理结果，你可以通过 `--print-result` 参数来查看推理结果。
+
+下面是一个例子：
+
+```bash
+python tools/infer.py demo/demo_text_ocr.jpg --det DBNet --rec SAR --show --print-result
+```
+
+运行该命令，可以得到如下结果：
+
+```bash
+{'predictions': [{'rec_texts': ['CBank', 'Docbcba', 'GROUP', 'MAUN', 'CROBINSONS', 'AOCOC', '916M3', 'BOO9', 'Oven', 'BRANDS', 'ARETAIL', '14', '70<UKN>S', 'ROUND', 'SALE', 'YEAR', 'ALLY', 'SALE', 'SALE'],
+'rec_scores': [0.9753464579582214, ...], 'det_polygons': [[551.9930285844646, 411.9138765335083, 553.6153911653112,
+383.53195309638977, 620.2410061195247, 387.33785033226013, 618.6186435386782, 415.71977376937866], ...], 'det_scores': [0.8230461478233337, ...]}]}
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/train_test.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/train_test.md
new file mode 100644
index 0000000000000000000000000000000000000000..7ab634f8b362e1e9387ac1d4585c3253b577ea1d
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/train_test.md
@@ -0,0 +1,324 @@
+# 训练与测试
+
+为了适配多样化的用户需求，MMOCR 实现了多种不同操作系统及设备上的模型训练及测试。无论是使用本地机器进行单机单卡训练测试，还是在部署了 slurm 系统的大规模集群上进行训练测试，MMOCR 都提供了便捷的解决方案。
+
+## 单卡机器训练及测试
+
+### 训练
+
+`tools/train.py` 实现了基础的训练服务。MMOCR 推荐用户使用 GPU 进行模型训练和测试，但是，用户也可以通过指定 `CUDA_VISIBLE_DEVICES=-1` 来使用 CPU 设备进行模型训练及测试。例如，以下命令演示了如何使用 CPU 或单卡 GPU 来训练 DBNet 文本检测器。
+
+```bash
+# 通过调用 tools/train.py 来训练指定的 MMOCR 模型
+CUDA_VISIBLE_DEVICES= python tools/train.py ${CONFIG_FILE} [PY_ARGS]
+
+# 训练
+# 示例 1：使用 CPU 训练 DBNet
+CUDA_VISIBLE_DEVICES=-1 python tools/train.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+
+# 示例 2：指定使用 gpu:0 训练 DBNet，指定工作目录为 dbnet/，并打开混合精度（amp）训练
+CUDA_VISIBLE_DEVICES=0 python tools/train.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py --work-dir dbnet/ --amp
+```
+
+```{note}
+此外，如需使用指定编号的 GPU 进行训练或测试，例如使用3号 GPU，则可以通过设定 CUDA_VISIBLE_DEVICES=3 来实现。
+```
+
+下表列出了 `train.py` 支持的所有参数。其中，不带 `--` 前缀的参数为必须的位置参数，带 `--` 前缀的参数为可选参数。
+
+| 参数            | 类型 | 说明                                                           |
+| --------------- | ---- | -------------------------------------------------------------- |
+| config          | str  | （必须）配置文件路径。                                         |
+| --work-dir      | str  | 指定工作目录，用于存放训练日志以及模型 checkpoints。           |
+| --resume        | bool | 是否从断点处恢复训练。                                         |
+| --amp           | bool | 是否使用混合精度。                                             |
+| --auto-scale-lr | bool | 是否使用学习率自动缩放。                                       |
+| --cfg-options   | str  | 用于覆写配置文件中的指定参数。[示例](#添加示例)                |
+| --launcher      | str  | 启动器选项，可选项目为 \['none', 'pytorch', 'slurm', 'mpi'\]。 |
+| --local_rank    | int  | 本地机器编号，用于多机多卡分布式训练，默认为 0。               |
+
+### 测试
+
+`tools/test.py` 提供了基础的测试服务，其使用原理和训练脚本类似。例如，以下命令演示了 CPU 或 GPU 单卡测试 DBNet 模型。
+
+```bash
+# 通过调用 tools/test.py 来测试指定的 MMOCR 模型
+CUDA_VISIBLE_DEVICES= python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} [PY_ARGS]
+
+# 测试
+# 示例 1：使用 CPU 测试 DBNet
+CUDA_VISIBLE_DEVICES=-1 python tools/test.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth
+# 示例 2：使用 gpu:0 测试 DBNet
+CUDA_VISIBLE_DEVICES=0 python tools/test.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth
+```
+
+下表列出了 `test.py` 支持的所有参数。其中，不带 `--` 前缀的参数为必须的位置参数，带 `--` 前缀的参数为可选参数。
+
+| 参数          | 类型  | 说明                                                           |
+| ------------- | ----- | -------------------------------------------------------------- |
+| config        | str   | （必须）配置文件路径。                                         |
+| checkpoint    | str   | （必须）待测试模型路径。                                       |
+| --work-dir    | str   | 工作目录，用于存放训练日志以及模型 checkpoints。               |
+| --save-preds  | bool  | 是否将预测结果写入 pkl 文件并保存。                            |
+| --show        | bool  | 是否可视化预测结果。                                           |
+| --show-dir    | str   | 将可视化的预测结果保存至指定路径。                             |
+| --wait-time   | float | 可视化间隔时间（秒），默认为 2 秒。                            |
+| --cfg-options | str   | 用于覆写配置文件中的指定参数。[示例](#添加示例)                |
+| --launcher    | str   | 启动器选项，可选项目为 \['none', 'pytorch', 'slurm', 'mpi'\]。 |
+| --local_rank  | int   | 本地机器编号，用于多机多卡分布式训练，默认为 0。               |
+| --tta         | bool  | 是否使用测试时数据增强                                         |
+
+## 多卡机器训练及测试
+
+对于大规模模型，采用多 GPU 训练和测试可以极大地提升操作的效率。为此，MMOCR 提供了基于 [MMDistributedDataParallel](mmengine.model.wrappers.MMDistributedDataParallel) 实现的分布式脚本 `tools/dist_train.sh` 和 `tools/dist_test.sh`。
+
+```bash
+# 训练
+NNODES=${NNODES} NODE_RANK=${NODE_RANK} PORT=${MASTER_PORT} MASTER_ADDR=${MASTER_ADDR} ./tools/dist_train.sh ${CONFIG_FILE} ${GPU_NUM} [PY_ARGS]
+# 测试
+NNODES=${NNODES} NODE_RANK=${NODE_RANK} PORT=${MASTER_PORT} MASTER_ADDR=${MASTER_ADDR} ./tools/dist_test.sh ${CONFIG_FILE} ${CHECKPOINT_FILE} ${GPU_NUM} [PY_ARGS]
+```
+
+下表列出了 `dist_*.sh` 支持的参数：
+
+| 参数            | 类型 | 说明                                                                               |
+| --------------- | ---- | ---------------------------------------------------------------------------------- |
+| NNODES          | int  | 总共使用的机器节点个数，默认为 1。                                                 |
+| NODE_RANK       | int  | 节点编号，默认为 0。                                                               |
+| PORT            | int  | 在 RANK 0 机器上使用的 MASTER_PORT 端口号，取值范围是 0 至 65535，默认值为 29500。 |
+| MASTER_ADDR     | str  | RANK 0 机器的 IP 地址，默认值为 127.0.0.1。                                        |
+| CONFIG_FILE     | str  | （必须）指定配置文件的地址。                                                       |
+| CHECKPOINT_FILE | str  | （必须，仅在 dist_test.sh 中适用）指定模型权重的地址。                             |
+| GPU_NUM         | int  | （必须）指定 GPU 的数量。                                                          |
+| \[PY_ARGS\]     | str  | 该部分一切的参数都会被直接传入 tools/train.py 或 tools/test.py 中。                |
+
+这两个脚本可以实现**单机多卡**或**多机多卡**的训练和测试，下面演示了它们在不同场景下的用法。
+
+### 单机多卡
+
+以下命令演示了如何在搭载多块 GPU 的**单台机器**上使用指定数目的 GPU 进行训练及测试：
+
+1. **训练**
+
+   使用单台机器上的 4 块 GPU 训练 DBNet。
+
+   ```bash
+   # 单机 4 卡训练 DBNet
+   tools/dist_train.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4
+   ```
+
+2. **测试**
+
+   使用单台机器上的 4 块 GPU 测试 DBNet。
+
+   ```bash
+   # 单机 4 卡测试 DBNet
+   tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 4
+   ```
+
+### 单机多任务训练及测试
+
+对于搭载多块 GPU 的单台服务器而言，用户可以通过指定 GPU 的形式来同时执行不同的训练任务。例如，以下命令演示了如何在一台 8 卡 GPU 服务器上分别使用 `[0, 1, 2, 3]` 卡测试 DBNet 及 `[4, 5, 6, 7]` 卡训练 CRNN：
+
+```bash
+# 指定使用 gpu:0,1,2,3 测试 DBNet，并分配端口号 29500
+CUDA_VISIBLE_DEVICES=0,1,2,3 PORT=29500 ./tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 4
+# 指定使用 gpu:4,5,6,7 训练 CRNN，并分配端口号 29501
+CUDA_VISIBLE_DEVICES=4,5,6,7 PORT=29501 ./tools/dist_train.sh configs/textrecog/crnn/crnn_academic_dataset.py 4
+```
+
+```{note}
+`dist_train.sh` 默认将 `MASTER_PORT` 设置为 `29500`，当单台机器上有其它进程已占用该端口时，程序则会出现运行时错误 `RuntimeError: Address already in use`。此时，用户需要将 `MASTER_PORT` 设置为 `(0~65535)` 范围内的其它空闲端口号。
+```
+
+### 多机多卡训练及测试
+
+MMOCR 基于[torch.distributed](https://pytorch.org/docs/stable/distributed.html#launch-utility) 提供了相同局域网下的多台机器间的多卡分布式训练。
+
+1. **训练**
+
+   以下命令演示了如何在两台机器上分别使用 2 张 GPU 合计 4 卡训练 DBNet：
+
+   ```bash
+   # 示例：在两台机器上分别使用 2 张 GPU 合计 4 卡训练 DBNet
+   # 在 “机器1” 上运行以下命令
+   NNODES=2 NODE_RANK=0 PORT=29501 MASTER_ADDR=10.140.0.169 tools/dist_train.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 2
+   # 在 “机器2” 上运行以下命令
+   NNODES=2 NODE_RANK=1 PORT=29501 MASTER_ADDR=10.140.0.169 tools/dist_train.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 2
+   ```
+
+2. **测试**
+
+   以下命令演示了如何在两台机器上分别使用 2 张 GPU 合计 4 卡测试：
+
+   ```bash
+   # 示例：在两台机器上分别使用 2 张 GPU 合计 4 卡测试
+   # 在 “机器1” 上运行以下命令
+   NNODES=2 NODE_RANK=0 PORT=29500 MASTER_ADDR=10.140.0.169 tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 2
+   # 在 “机器2” 上运行以下命令
+   NNODES=2 NODE_RANK=1 PORT=29501 MASTER_ADDR=10.140.0.169 tools/dist_test.sh configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth 2
+   ```
+
+   ```{note}
+   需要注意的是，采用多机多卡训练时，机器间的网络传输速度可能成为训练速度的瓶颈。
+   ```
+
+## 集群训练及测试
+
+针对 [Slurm](https://slurm.schedmd.com/) 调度系统管理的计算集群，MMOCR 提供了对应的训练和测试任务提交脚本 `tools/slurm_train.sh` 及 `tools/slurm_test.sh`。
+
+```bash
+# tools/slurm_train.sh 提供基于 slurm 调度系统管理的计算集群上提交训练任务的脚本
+GPUS=${GPUS} GPUS_PER_NODE=${GPUS_PER_NODE} CPUS_PER_TASK=${CPUS_PER_TASK} SRUN_ARGS=${SRUN_ARGS} ./tools/slurm_train.sh ${PARTITION} ${JOB_NAME} ${CONFIG_FILE} ${WORK_DIR} [PY_ARGS]
+
+# tools/slurm_test.sh 提供基于 slurm 调度系统管理的计算集群上提交测试任务的脚本
+GPUS=${GPUS} GPUS_PER_NODE=${GPUS_PER_NODE} CPUS_PER_TASK=${CPUS_PER_TASK} SRUN_ARGS=${SRUN_ARGS} ./tools/slurm_test.sh ${PARTITION} ${JOB_NAME} ${CONFIG_FILE} ${CHECKPOINT_FILE} ${WORK_DIR} [PY_ARGS]
+```
+
+| 参数            | 类型 | 说明                                                                      |
+| --------------- | ---- | ------------------------------------------------------------------------- |
+| GPUS            | int  | 使用的 GPU 数目，默认为8。                                                |
+| GPUS_PER_NODE   | int  | 每台节点机器上搭载的 GPU 数目，默认为8。                                  |
+| CPUS_PER_TASK   | int  | 任务使用的 CPU 个数，默认为5。                                            |
+| SRUN_ARGS       | str  | 其他 srun 支持的参数。详见[这里](https://slurm.schedmd.com/srun.html)     |
+| PARTITION       | str  | （必须）指定使用的集群分区。                                              |
+| JOB_NAME        | str  | （必须）提交任务的名称。                                                  |
+| WORK_DIR        | str  | （必须）任务的工作目录，训练日志以及模型的 checkpoints 将被保存至该目录。 |
+| CHECKPOINT_FILE | str  | （必须，仅在 slurm_test.sh 中适用）指向模型权重的地址。                   |
+| \[PY_ARGS\]     | str  | tools/train.py 以及 tools/test.py 支持的参数。                            |
+
+这两个脚本可以实现 slurm 集群上的训练和测试，下面演示了它们在不同场景下的用法。
+
+1. 训练
+
+   以下示例为在 slurm 集群 dev 分区申请 1 块 GPU 进行 DBNet 训练。
+
+```bash
+# 示例：在 slurm 集群 dev 分区申请 1块 GPU 资源进行 DBNet 训练任务
+GPUS=1 GPUS_PER_NODE=1 CPUS_PER_TASK=5 tools/slurm_train.sh dev db_r50 configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py work_dir
+```
+
+2. 测试
+
+   同理， 则提供了测试任务提交脚本。以下示例为在 slurm 集群 dev 分区申请 1 块 GPU 资源进行 DBNet 测试。
+
+```bash
+# 示例：在 slurm 集群 dev 分区申请 1块 GPU 资源进行 DBNet 测试任务
+GPUS=1 GPUS_PER_NODE=1 CPUS_PER_TASK=5 tools/slurm_test.sh dev db_r50 configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth work_dir
+```
+
+## 进阶技巧
+
+### 从断点恢复训练
+
+`tools/train.py` 提供了从断点恢复训练的功能，用户仅需在命令中指定 `--resume` 参数，即可自动从断点恢复训练。
+
+```bash
+# 示例：从断点恢复训练
+python tools/train.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4 --resume
+```
+
+默认地，程序将自动从上次训练过程中最后成功保存的断点，即 `latest.pth` 处开始继续训练。如果用户希望指定从特定的断点处开始恢复训练，则可以按如下格式在模型的配置文件中设定该断点的路径。
+
+```python
+# 示例：在配置文件中设置想要加载的断点路径
+load_from = 'work_dir/dbnet/models/epoch_10000.pth'
+```
+
+### 混合精度训练
+
+混合精度训练可以在缩减内存占用的同时提升训练速度，为此，MMOCR 提供了一键式的混合精度训练方案，仅需在训练时添加 `--amp` 参数即可。
+
+```bash
+# 示例：使用自动混合精度训练
+python tools/train.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4 --amp
+```
+
+下表列出了 MMOCR 中各算法对自动混合精度训练的支持情况：
+
+|               | 是否支持混合精度训练 |             备注              |
+| ------------- | :------------------: | :---------------------------: |
+|               |       文本检测       |                               |
+| DBNet         |          是          |                               |
+| DBNetpp       |          是          |                               |
+| DRRG          |          否          | roi_align_rotated 不支持 fp16 |
+| FCENet        |          否          |      BCELoss 不支持 fp16      |
+| Mask R-CNN    |          是          |                               |
+| PANet         |          是          |                               |
+| PSENet        |          是          |                               |
+| TextSnake     |          否          |                               |
+|               |       文本识别       |                               |
+| ABINet        |          是          |                               |
+| ASTER         |          是          |                               |
+| CRNN          |          是          |                               |
+| MASTER        |          是          |                               |
+| NRTR          |          是          |                               |
+| RobustScanner |          是          |                               |
+| SAR           |          是          |                               |
+| SATRN         |          是          |                               |
+
+### 自动学习率缩放
+
+MMOCR 在配置文件中为每一个模型设置了默认的初始学习率，然而，当用户使用的 `batch_size` 不同于我们预设的 `base_batch_size` 时，这些初始学习率可能不再完全适用。因此，我们提供了自动学习率缩放工具。当使用不同于 MMOCR 预设的 `base_batch_size` 进行训练时，用户仅需添加 `--auto-scale-lr` 参数即可自动依据新的 `batch_size` 将学习率缩放至对应尺度。
+
+```bash
+# 示例：使用自动学习率缩放
+python tools/train.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py 4 --auto-scale-lr
+```
+
+### 可视化模型测试结果
+
+`tools/test.py` 提供了可视化接口，以方便用户对模型进行定性分析。
+
+<div align="center">
+
+![可视化文本检测模型](../../../demo/resources/det_vis.png)
+
+(绿色框为真实标注，红色框为预测结果)
+
+</div>
+
+<div align="center">
+
+![可视化文本识别模型](../../../demo/resources/rec_vis.png)
+
+（绿色字体为真实标注，红色字体为预测结果）
+
+</div>
+
+<div align="center">
+
+![可视化关键信息抽取模型结果](../../../demo/resources/kie_vis.png)
+
+（从左至右分别为：原图，文本检测和识别结果，文本分类结果，关系图）
+
+</div>
+
+```bash
+# 示例1：每间隔 2 秒绘制出
+python tools/test.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth --show --wait-time 2
+
+# 示例2：对于不支持图形化界面的系统（如计算集群等），可以将可视化结果存入指定路径
+python tools/test.py configs/textdet/dbnet/dbnet_r50dcnv2_fpnc_1200e_icdar2015.py dbnet_r50.pth --show-dir ./vis_results
+```
+
+`tools/test.py` 中可视化相关参数说明：
+
+| 参数        | 类型  | 说明                             |
+| ----------- | ----- | -------------------------------- |
+| --show      | bool  | 是否绘制可视化结果。             |
+| --show-dir  | str   | 可视化图片存储路径。             |
+| --wait-time | float | 可视化间隔时间（秒），默认为 2。 |
+
+### 测试时数据增强
+
+测试时增强，指的是在推理（预测）阶段，将原始图片进行水平翻转、垂直翻转、对角线翻转、旋转角度等数据增强操作，得到多张图，分别进行推理，再对多个结果进行综合分析，得到最终输出结果。
+为此，MMOCR 提供了一键式测试时数据增强，仅需在测试时添加 `--tta` 参数即可。
+
+```{note}
+TTA 仅支持文本识别模型。
+```
+
+```bash
+python tools/test.py configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py checkpoints/crnn_mini-vgg_5e_mj.pth --tta
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/useful_tools.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/useful_tools.md
new file mode 100644
index 0000000000000000000000000000000000000000..2a607245a300e9c93ae7388da481dfa347c3a2e9
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/useful_tools.md
@@ -0,0 +1,241 @@
+# 常用工具
+
+## 可视化工具
+
+### 数据集可视化工具
+
+MMOCR 提供了数据集可视化工具 `tools/visualizations/browse_datasets.py` 以辅助用户排查可能遇到的数据集相关的问题。用户只需要指定所使用的训练配置文件（通常存放在如 `configs/textdet/dbnet/xxx.py` 文件中）或数据集配置（通常存放在 `configs/textdet/_base_/datasets/xxx.py` 文件中）路径。该工具将依据输入的配置文件类型自动将经过数据流水线（data pipeline）处理过的图像及其对应的标签，或原始图片及其对应的标签绘制出来。
+
+#### 支持参数
+
+```bash
+python tools/visualizations/browse_dataset.py \
+    ${CONFIG_FILE} \
+    [-o, --output-dir ${OUTPUT_DIR}] \
+    [-p, --phase ${DATASET_PHASE}] \
+    [-m, --mode ${DISPLAY_MODE}] \
+    [-t, --task ${DATASET_TASK}] \
+    [-n, --show-number ${NUMBER_IMAGES_DISPLAY}] \
+    [-i, --show-interval ${SHOW_INTERRVAL}] \
+    [--cfg-options ${CFG_OPTIONS}]
+```
+
+| 参数名              | 类型                                  | 描述                                                                                                                                             |
+| ------------------- | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
+| config              | str                                   | (必须) 配置文件路径。                                                                                                                            |
+| -o, --output-dir    | str                                   | 如果图形化界面不可用，请指定一个输出路径来保存可视化结果。                                                                                       |
+| -p, --phase         | str                                   | 用于指定需要可视化的数据集切片，如 "train", "test", "val"。当数据集存在多个变种时，也可以通过该参数来指定待可视化的切片。                        |
+| -m, --mode          | `original`, `transformed`, `pipeline` | 用于指定数据可视化的模式。`original`：原始模式，仅可视化数据集的原始标注；`transformed`：变换模式，展示经过所有数据变换步骤的最终图像；`pipeline`：流水线模式，展示数据变换过程中每一个中间步骤的变换图像。默认使用 `transformed` 变换模式。 |
+| -t, --task          | `auto`, `textdet`, `textrecog`        | 用于指定可视化数据集的任务类型。`auto`：自动模式，将依据给定的配置文件自动选择合适的任务类型，如果无法自动获取任务类型，则需要用户手动指定为 `textdet` 文本检测任务 或 `textrecog` 文本识别任务。默认采用 `auto` 自动模式。 |
+| -n, --show-number   | int                                   | 指定需要可视化的样本数量。若该参数缺省则默认将可视化全部图片。                                                                                   |
+| -i, --show-interval | float                                 | 可视化图像间隔时间，默认为 2 秒。                                                                                                                |
+| --cfg-options       | float                                 | 用于覆盖配置文件中的参数，详见[示例](./config.md#command-line-modification)。                                                                    |
+
+#### 用法示例
+
+以下示例演示了如何使用该工具可视化 "DBNet_R50_icdar2015" 模型使用的训练数据。
+
+```Bash
+# 使用默认参数可视化 "dbnet_r50dcn_v2_fpnc_1200e_icadr2015" 模型的训练数据
+python tools/visualizations/browse_dataset.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py
+```
+
+默认情况下，可视化模式为 "transformed"，您将看到经由数据流水线变换过后的图像和标注：
+
+<center class="half">
+    <img src="https://user-images.githubusercontent.com/24622904/187611542-01e9aa94-fc12-4756-964b-a0e472522a3a.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611555-3f5ea616-863d-4538-884f-bccbebc2f7e7.jpg" width="250"/><img src="https://user-images.githubusercontent.com/24622904/187611581-88be3970-fbfe-4f62-8cdf-7a8a7786af29.jpg" width="250"/>
+</center>
+
+如果您只想可视化原始数据集，只需将模式设置为 "original"：
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py -m original
+```
+
+<div align=center><img src="https://user-images.githubusercontent.com/22607038/206646570-382d0f26-908a-4ab4-b1a7-5cc31fa70c5f.jpg" style=" width: auto; height: 40%; "></div>
+
+或者，您也可以使用 "pipeline" 模式来可视化整个数据流水线的中间结果：
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py -m pipeline
+```
+
+<div align=center><img src="https://user-images.githubusercontent.com/22607038/206637571-287640c0-1f55-453f-a2fc-9f9734b9593f.jpg" style=" width: auto; height: 40%; "></div>
+
+另外，用户还可以通过指定数据集配置文件的路径来可视化数据集的原始图像及其对应的标注，例如：
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textrecog/_base_/datasets/icdar2015.py
+```
+
+部分数据集可能有多个变体。例如，`icdar2015` 文本识别数据集的[配置文件](/configs/textrecog/_base_/datasets/icdar2015.py)中包含两个测试集变体，分别为 `icdar2015_textrecog_test` 和 `icdar2015_1811_textrecog_test`，如下所示：
+
+```python
+icdar2015_textrecog_test = dict(
+    ann_file='textrecog_test.json',
+    # ...
+    )
+
+icdar2015_1811_textrecog_test = dict(
+    ann_file='textrecog_test_1811.json',
+    # ...
+)
+```
+
+在这种情况下，用户可以通过指定 `-p` 参数来可视化不同的变体，例如，使用以下命令可视化 `icdar2015_1811_textrecog_test` 变体：
+
+```Bash
+python tools/visualizations/browse_dataset.py configs/textrecog/_base_/datasets/icdar2015.py -p icdar2015_1811_textrecog_test
+```
+
+基于该工具，用户可以轻松地查看数据集的原始图像及其对应的标注，以便于检查数据集的标注是否正确。
+
+### 优化器参数策略可视化工具
+
+MMOCR提供了优化器参数可视化工具 `tools/visualizations/vis_scheduler.py` 以辅助用户排查优化器的超参数调度器（无需训练），支持学习率（learning rate）和动量（momentum）。
+
+#### 工具简介
+
+```bash
+python tools/visualizations/vis_scheduler.py \
+    ${CONFIG_FILE} \
+    [-p, --parameter ${PARAMETER_NAME}] \
+    [-d, --dataset-size ${DATASET_SIZE}] \
+    [-n, --ngpus ${NUM_GPUs}] \
+    [-s, --save-path ${SAVE_PATH}] \
+    [--title ${TITLE}] \
+    [--style ${STYLE}] \
+    [--window-size ${WINDOW_SIZE}] \
+    [--cfg-options]
+```
+
+**所有参数的说明**：
+
+- `config` : 模型配置文件的路径。
+- **`-p, parameter`**: 可视化参数名，只能为 `["lr", "momentum"]` 之一， 默认为 `"lr"`.
+- **`-d, --dataset-size`**: 数据集的大小。如果指定，`build_dataset` 将被跳过并使用这个大小作为数据集大小，默认使用 `build_dataset` 所得数据集的大小。
+- **`-n, --ngpus`**: 使用 GPU 的数量, 默认为1。
+- **`-s, --save-path`**: 保存的可视化图片的路径，默认不保存。
+- `--title`: 可视化图片的标题，默认为配置文件名。
+- `--style`: 可视化图片的风格，默认为 `whitegrid`。
+- `--window-size`: 可视化窗口大小，如果没有指定，默认为 `12*7`。如果需要指定，按照格式 \`W\*H'。
+- `--cfg-options`: 对配置文件的修改，参考[学习配置文件](../user_guides/config.md)。
+
+```{note}
+部分数据集在解析标注阶段比较耗时，可直接将 `-d, dataset-size` 指定数据集的大小，以节约时间。
+```
+
+#### 如何在开始训练前可视化学习率曲线
+
+你可以使用如下命令来绘制配置文件 `configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py` 将会使用的变化率曲线：
+
+```bash
+python tools/visualizations/vis_scheduler.py configs/textdet/dbnet/dbnet_resnet50-dcnv2_fpnc_1200e_icdar2015.py -d 100
+```
+
+<div align=center><img src="https://user-images.githubusercontent.com/43344034/232755081-cad8fe62-349d-400a-bc38-7f5d17824011.png" style=" width: auto; height: 40%; "></div>
+
+## 分析工具
+
+### 离线评测工具
+
+对于已保存的预测结果，我们提供了离线评测脚本 `tools/analysis_tools/offline_eval.py`。例如，以下代码演示了如何使用该工具对 "PSENet" 模型的输出结果进行离线评估：
+
+```Bash
+# 初次运行测试脚本时，用户可以通过指定 --save-preds 参数来保存模型的输出结果
+python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} --save-preds
+# 示例：对 PSENet 进行测试
+python tools/test.py configs/textdet/psenet/psenet_r50_fpnf_600e_icdar2015.py epoch_600.pth --save-preds
+
+# 之后即可使用已保存的输出文件进行离线评估
+python tools/analysis_tool/offline_eval.py ${CONFIG_FILE} ${PRED_FILE}
+# 示例：对已保存的 PSENet 结果进行离线评估
+python tools/analysis_tools/offline_eval.py configs/textdet/psenet/psenet_r50_fpnf_600e_icdar2015.py work_dirs/psenet_r50_fpnf_600e_icdar2015/epoch_600.pth_predictions.pkl
+```
+
+`--save-preds` 默认将输出结果保存至 `work_dir/CONFIG_NAME/MODEL_NAME_predictions.pkl`
+
+此外，基于此工具，用户也可以将其他算法库获取的预测结果转换成 MMOCR 支持的格式，从而使用 MMOCR 内置的评估指标来对其他算法库的模型进行评测。
+
+| 参数          | 类型  | 说明                                                             |
+| ------------- | ----- | ---------------------------------------------------------------- |
+| config        | str   | （必须）配置文件路径。                                           |
+| pkl_results   | str   | （必须）预先保存的预测结果文件。                                 |
+| --cfg-options | float | 用于覆写配置文件中的指定参数。[示例](./config.md#命令行修改配置) |
+
+### 计算 FLOPs 和参数量
+
+我们提供一个计算 FLOPs 和参数量的方法，首先我们使用以下命令安装依赖。
+
+```shell
+pip install fvcore
+```
+
+计算 FLOPs 和参数量的脚本使用方法如下：
+
+```shell
+python tools/analysis_tools/get_flops.py ${config} --shape ${IMAGE_SHAPE}
+```
+
+| 参数    | 类型   | 说明                                                               |
+| ------- | ------ | ------------------------------------------------------------------ |
+| config  | str    | （必须) 配置文件路径。                                             |
+| --shape | int\*2 | 计算 FLOPs 使用的图片尺寸，如 `--shape 320 320`。 默认为 `640 640` |
+
+获取 `dbnet_resnet18_fpnc_100k_synthtext.py` FLOPs 和参数量的示例命令如下。
+
+```shell
+python tools/analysis_tools/get_flops.py configs/textdet/dbnet/dbnet_resnet18_fpnc_100k_synthtext.py --shape 1024 1024
+```
+
+输出如下：
+
+```shell
+input shape is  (1, 3, 1024, 1024)
+| module                    | #parameters or shape | #flops  |
+| :------------------------ | :------------------- | :------ |
+| model                     | 12.341M              | 63.955G |
+| backbone                  | 11.177M              | 38.159G |
+| backbone.conv1            | 9.408K               | 2.466G  |
+| backbone.conv1.weight     | (64, 3, 7, 7)        |         |
+| backbone.bn1              | 0.128K               | 83.886M |
+| backbone.bn1.weight       | (64,)                |         |
+| backbone.bn1.bias         | (64,)                |         |
+| backbone.layer1           | 0.148M               | 9.748G  |
+| backbone.layer1.0         | 73.984K              | 4.874G  |
+| backbone.layer1.1         | 73.984K              | 4.874G  |
+| backbone.layer2           | 0.526M               | 8.642G  |
+| backbone.layer2.0         | 0.23M                | 3.79G   |
+| backbone.layer2.1         | 0.295M               | 4.853G  |
+| backbone.layer3           | 2.1M                 | 8.616G  |
+| backbone.layer3.0         | 0.919M               | 3.774G  |
+| backbone.layer3.1         | 1.181M               | 4.842G  |
+| backbone.layer4           | 8.394M               | 8.603G  |
+| backbone.layer4.0         | 3.673M               | 3.766G  |
+| backbone.layer4.1         | 4.721M               | 4.837G  |
+| neck                      | 0.836M               | 14.887G |
+| neck.lateral_convs        | 0.246M               | 2.013G  |
+| neck.lateral_convs.0.conv | 16.384K              | 1.074G  |
+| neck.lateral_convs.1.conv | 32.768K              | 0.537G  |
+| neck.lateral_convs.2.conv | 65.536K              | 0.268G  |
+| neck.lateral_convs.3.conv | 0.131M               | 0.134G  |
+| neck.smooth_convs         | 0.59M                | 12.835G |
+| neck.smooth_convs.0.conv  | 0.147M               | 9.664G  |
+| neck.smooth_convs.1.conv  | 0.147M               | 2.416G  |
+| neck.smooth_convs.2.conv  | 0.147M               | 0.604G  |
+| neck.smooth_convs.3.conv  | 0.147M               | 0.151G  |
+| det_head                  | 0.329M               | 10.909G |
+| det_head.binarize         | 0.164M               | 10.909G |
+| det_head.binarize.0       | 0.147M               | 9.664G  |
+| det_head.binarize.1       | 0.128K               | 20.972M |
+| det_head.binarize.3       | 16.448K              | 1.074G  |
+| det_head.binarize.4       | 0.128K               | 83.886M |
+| det_head.binarize.6       | 0.257K               | 67.109M |
+| det_head.threshold        | 0.164M               |         |
+| det_head.threshold.0      | 0.147M               |         |
+| det_head.threshold.1      | 0.128K               |         |
+| det_head.threshold.3      | 16.448K              |         |
+| det_head.threshold.4      | 0.128K               |         |
+| det_head.threshold.6      | 0.257K               |         |
+!!!Please be cautious if you use the results in papers. You may need to check if all ops are supported and verify that the flops computation is correct.
+```
diff --git a/mmocr-dev-1.x/docs/zh_cn/user_guides/visualization.md b/mmocr-dev-1.x/docs/zh_cn/user_guides/visualization.md
new file mode 100644
index 0000000000000000000000000000000000000000..79a9d7e39b3f1828b2407a4add268e50647b2b72
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/user_guides/visualization.md
@@ -0,0 +1,107 @@
+# 可视化
+
+阅读本文前建议先阅读 {external+mmengine:doc}`MMEngine: 可视化 <advanced_tutorials/visualization>` 以初步了解 Visualizer 的定义及相关用法。
+
+简单来说，MMEngine 中实现了用于满足日常可视化需求的可视化器件 [`Visualizer`](mmengine.visualization.Visualizer)，其主要包含三个功能：
+
+- 实现了常用的绘图 API，例如 [`draw_bboxes`](mmengine.visualization.Visualizer.draw_bboxes) 实现了边界盒的绘制功能，[`draw_lines`](mmengine.visualization.Visualizer.draw_lines) 实现了线条的绘制功能。
+- 支持将可视化结果、学习率曲线、损失函数曲线以及验证精度曲线等写入多种后端中，包括本地磁盘以及常用的深度学习训练日志记录工具，如 [TensorBoard](https://www.tensorflow.org/tensorboard) 和 [WandB](https://wandb.ai/site)。
+- 支持在代码中的任意位置进行调用，例如在训练或测试过程中可视化或记录模型的中间状态，如特征图及验证结果等。
+
+基于 MMEngine 的 Visualizer，MMOCR 内预置了多种可视化工具，用户仅需简单修改配置文件即可使用：
+
+- `tools/analysis_tools/browse_dataset.py` 脚本提供了数据集可视化功能，其可以绘制经过数据变换（Data Transforms）之后的图像及对应的标注内容，详见 [`browse_dataset.py`](useful_tools.md)。
+- MMEngine 中实现了 `LoggerHook`，该 Hook 利用 `Visualizer` 将学习率、损失以及评估结果等数据写入  `Visualizer` 设置的后端中，因此通过修改配置文件中的 `Visualizer` 后端，比如修改为`TensorBoardVISBackend` 或 `WandbVISBackend`，可以实现将日志到 `TensorBoard` 或 `WandB` 等常见的训练日志记录工具中，从而方便用户使用这些可视化工具来分析和监控训练流程。
+- MMOCR 中实现了`VisualizerHook`，该 Hook 利用 `Visualizer` 将验证阶段或预测阶段的预测结果进行可视化或储存至 `Visualizer` 设置的后端中，因此通过修改配置文件中的 `Visualizer` 后端，比如修改为`TensorBoardVISBackend` 或 `WandbVISBackend`，可以实现将预测的图像存储到 `TensorBoard` 或 `Wandb`中。
+
+## 配置
+
+得益于注册机制的使用，在 MMOCR 中，我们可以通过修改配置文件来设置可视化器件 `Visualizer` 的行为。通常，我们在 `task/_base_/default_runtime.py` 中定义可视化相关的默认配置， 详见[配置教程](config.md)。
+
+```Python
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextxxxLocalVisualizer',  # 不同任务使用不同的可视化器
+    vis_backends=vis_backends,
+    name='visualizer')
+```
+
+依据以上示例，我们可以看出 `Visualizer` 的配置主要由两个部分组成，即，`Visualizer`的类型以及其采用的可视化后端 `vis_backends`。
+
+- 针对不同的 OCR 任务，MMOCR 中预置了多种可视化器件，包括 [`TextDetLocalVisualizer`](mmocr.visualization.TextDetLocalVisualizer)，[`TextRecogLocalVisualizer`](mmocr.visualization.TextRecogLocalVisualizer)，[`TextSpottingLocalVisualizer`](mmocr.visualization.TextSpottingLocalVisualizer) 以及[`KIELocalVisualizer`](mmocr.visualization.KIELocalVisualizer)。这些可视化器件依照自身任务的特点对基础的 Visulizer API 进行了拓展，并实现了相应的标签信息接口 `add_datasamples`。例如，用户可以直接使用 `TextDetLocalVisualizer` 来可视化文本检测任务的标签或预测结果。
+- MMOCR 默认将可视化后端 `vis_backend` 设置为本地可视化后端 `LocalVisBackend`，将所有可视化结果及其他训练信息保存在本地文件夹中。
+
+## 存储
+
+MMOCR 默认使用本地可视化后端 [`LocalVisBackend`](mmengine.visualization.LocalVisBackend)，`VisualizerHook` 和`LoggerHook` 中存储的模型损失、学习率、模型评估精度以及可视化结果等信息将被默认保存至`{work_dir}/{config_name}/{time}/{vis_data}` 文件夹。此外，MMOCR 也支持其它常用的可视化后端，如 `TensorboardVisBackend` 以及 `WandbVisBackend`用户只需要将配置文件中的 `vis_backends` 类型修改为对应的可视化后端即可。例如，用户只需要在配置文件中插入以下代码块，即可将数据存储至 `TensorBoard` 以及 `WandB`中。
+
+```Python
+_base_.visualizer.vis_backends = [
+    dict(type='LocalVisBackend'),
+    dict(type='TensorboardVisBackend'),
+    dict(type='WandbVisBackend'),]
+```
+
+## 绘制
+
+### 绘制预测结果信息
+
+MMOCR 主要利用 [`VisualizationHook`](mmocr.engine.hooks.VisualizationHook)validation 和 test 的预测结果, 默认情况下 `VisualizationHook`为关闭状态，默认配置如下：
+
+```Python
+visualization=dict( # 用户可视化 validation 和 test 的结果
+    type='VisualizationHook',
+    enable=False,
+    interval=1,
+    show=False,
+    draw_gt=False,
+    draw_pred=False)
+```
+
+下表为 `VisualizationHook` 支持的参数：
+
+|   参数    |                                        说明                                         |
+| :-------: | :---------------------------------------------------------------------------------: |
+|  enable   |          VisualizationHook 的开启和关闭由参数enable控制默认是关闭的状态，           |
+| interval  | 在VisualizationHook开启的情况下,用以控制多少iteration 存储或展示 val 或 test 的结果 |
+|   show    |                          控制是否可视化 val 或 test 的结果                          |
+|  draw_gt  |                         val 或 test 的结果是否绘制标注信息                          |
+| draw_pred |                         val 或 test 的结果是否绘制预测结果                          |
+
+如果在训练或者测试过程中想开启 `VisualizationHook` 相关功能和配置，仅需修改配置即可，以 `dbnet_resnet18_fpnc_1200e_icdar2015.py`为例， 同时绘制标注和预测，并且将图像展示，配置可进行如下修改
+
+```Python
+visualization = _base_.default_hooks.visualization
+visualization.update(
+    dict(enable=True, show=True, draw_gt=True, draw_pred=True))
+```
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/24622904/187426573-8448c827-1336-4416-aebc-e7fccce362cd.png" height="200"/>
+</div>
+
+如果只想查看预测结果信息可以只让`draw_pred=True`
+
+```Python
+visualization = _base_.default_hooks.visualization
+visualization.update(
+    dict(enable=True, show=True, draw_gt=False, draw_pred=True))
+```
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/24622904/187428385-e6a23120-6445-4c55-a265-c550da692087.png" height="300"/>
+</div>
+
+在 `test.py` 过程中进一步简化，提供了 `--show` 和 `--show-dir`两个参数，无需修改配置即可视化测试过程中绘制标注和预测结果。
+
+```Shell
+# 展示test 结果
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py dbnet_r18_fpnc_1200e_icdar2015/epoch_400.pth --show
+
+# 指定预测结果的存储位置
+python tools/test.py configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py dbnet_r18_fpnc_1200e_icdar2015/epoch_400.pth --show-dir imgs/
+```
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/24622904/187426573-8448c827-1336-4416-aebc-e7fccce362cd.png" height="200"/>
+</div>
diff --git a/mmocr-dev-1.x/docs/zh_cn/weight_list.py b/mmocr-dev-1.x/docs/zh_cn/weight_list.py
new file mode 100644
index 0000000000000000000000000000000000000000..11a540208e6ad187fbe30f306d585274d283220f
--- /dev/null
+++ b/mmocr-dev-1.x/docs/zh_cn/weight_list.py
@@ -0,0 +1,115 @@
+import os.path as osp
+
+from mmengine.fileio import load
+from tabulate import tabulate
+
+
+class BaseWeightList:
+    """Class for generating model list in markdown format.
+
+    Args:
+        dataset_list (list[str]): List of dataset names.
+        table_header (list[str]): List of table header.
+        msg (str): Message to be displayed.
+        task_abbr (str): Abbreviation of task name.
+        metric_name (str): Metric name.
+    """
+
+    base_url: str = 'https://github.com/open-mmlab/mmocr/blob/1.x/'
+    table_cfg: dict = dict(
+        tablefmt='pipe', floatfmt='.2f', numalign='right', stralign='center')
+    dataset_list: list
+    table_header: list
+    msg: str
+    task_abbr: str
+    metric_name: str
+
+    def __init__(self):
+        data = (d + f' ({self.metric_name})' for d in self.dataset_list)
+        self.table_header = ['模型', 'README', *data]
+
+    def _get_model_info(self, task_name: str):
+        meta_indexes = load('../../model-index.yml')
+        for meta_path in meta_indexes['Import']:
+            meta_path = osp.join('../../', meta_path)
+            metainfo = load(meta_path)
+            collection2md = {}
+            for item in metainfo['Collections']:
+                url = self.base_url + item['README']
+                collection2md[item['Name']] = f'[链接]({url})'
+            for item in metainfo['Models']:
+                if task_name not in item['Config']:
+                    continue
+                name = f'`{item["Name"]}`'
+                if item.get('Alias', None):
+                    if isinstance(item['Alias'], str):
+                        item['Alias'] = [item['Alias']]
+                    aliases = [f'`{alias}`' for alias in item['Alias']]
+                    aliases.append(name)
+                    name = ' / '.join(aliases)
+                readme = collection2md[item['In Collection']]
+                eval_res = self._get_eval_res(item)
+                yield (name, readme, *eval_res)
+
+    def _get_eval_res(self, item):
+        eval_res = {k: '-' for k in self.dataset_list}
+        for res in item['Results']:
+            if res['Dataset'] in self.dataset_list:
+                eval_res[res['Dataset']] = res['Metrics'][self.metric_name]
+        return (eval_res[k] for k in self.dataset_list)
+
+    def gen_model_list(self):
+        content = f'\n{self.msg}\n'
+        content += '```{table}\n:class: model-summary nowrap field-list '
+        content += 'table table-hover\n'
+        content += tabulate(
+            self._get_model_info(self.task_abbr), self.table_header,
+            **self.table_cfg)
+        content += '\n```\n'
+        return content
+
+
+class TextDetWeightList(BaseWeightList):
+
+    dataset_list = ['ICDAR2015', 'CTW1500', 'Totaltext']
+    msg = '### 文字检测'
+    task_abbr = 'textdet'
+    metric_name = 'hmean-iou'
+
+
+class TextRecWeightList(BaseWeightList):
+
+    dataset_list = [
+        'Avg', 'IIIT5K', 'SVT', 'ICDAR2013', 'ICDAR2015', 'SVTP', 'CT80'
+    ]
+    msg = ('### 文字识别\n'
+           '```{note}\n'
+           'Avg 指该模型在 IIIT5K、SVT、ICDAR2013、ICDAR2015、SVTP、'
+           'CT80 上的平均结果。\n```\n')
+    task_abbr = 'textrecog'
+    metric_name = 'word_acc'
+
+    def _get_eval_res(self, item):
+        eval_res = {k: '-' for k in self.dataset_list}
+        avg = []
+        for res in item['Results']:
+            if res['Dataset'] in self.dataset_list:
+                eval_res[res['Dataset']] = res['Metrics'][self.metric_name]
+                avg.append(res['Metrics'][self.metric_name])
+        eval_res['Avg'] = sum(avg) / len(avg)
+        return (eval_res[k] for k in self.dataset_list)
+
+
+class KIEWeightList(BaseWeightList):
+
+    dataset_list = ['wildreceipt']
+    task_abbr = 'kie'
+    metric_name = 'macro_f1'
+    msg = '### 关键信息提取'
+
+
+def gen_weight_list():
+    content = TextDetWeightList().gen_model_list()
+    content += TextRecWeightList().gen_model_list()
+    content += KIEWeightList().gen_model_list()
+    return content
diff --git a/mmocr-dev-1.x/mmocr/__init__.py b/mmocr-dev-1.x/mmocr/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..335bfd04b961b96d2fcf6bdc0ea235d98066094f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/__init__.py
@@ -0,0 +1,56 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+import mmcv
+import mmdet
+
+try:
+    import mmengine
+    from mmengine.utils import digit_version
+except ImportError:
+    mmengine = None
+    from mmcv import digit_version
+
+from .version import __version__, short_version
+
+mmcv_minimum_version = '2.0.0rc4'
+mmcv_maximum_version = '2.1.0'
+mmcv_version = digit_version(mmcv.__version__)
+if mmengine is not None:
+    mmengine_minimum_version = '0.7.1'
+    mmengine_maximum_version = '1.0.0'
+    mmengine_version = digit_version(mmengine.__version__)
+
+if not mmengine or mmcv_version < digit_version('2.0.0rc0') or digit_version(
+        mmdet.__version__) < digit_version('3.0.0rc0'):
+    raise RuntimeError(
+        'MMOCR 1.0 only runs with MMEngine, MMCV 2.0.0rc0+ and '
+        'MMDetection 3.0.0rc0+, but got MMCV '
+        f'{mmcv.__version__} and MMDetection '
+        f'{mmdet.__version__}. For more information, please refer to '
+        'https://mmocr.readthedocs.io/en/dev-1.x/migration/overview.html'
+    )  # noqa
+
+assert (mmcv_version >= digit_version(mmcv_minimum_version)
+        and mmcv_version < digit_version(mmcv_maximum_version)), \
+    f'MMCV {mmcv.__version__} is incompatible with MMOCR {__version__}. ' \
+    f'Please use MMCV >= {mmcv_minimum_version}, ' \
+    f'< {mmcv_maximum_version} instead.'
+
+assert (mmengine_version >= digit_version(mmengine_minimum_version)
+        and mmengine_version < digit_version(mmengine_maximum_version)), \
+    f'MMEngine=={mmengine.__version__} is used but incompatible. ' \
+    f'Please install mmengine>={mmengine_minimum_version}, ' \
+    f'<{mmengine_maximum_version}.'
+
+mmdet_minimum_version = '3.0.0rc5'
+mmdet_maximum_version = '3.1.0'
+mmdet_version = digit_version(mmdet.__version__)
+
+assert (mmdet_version >= digit_version(mmdet_minimum_version)
+        and mmdet_version < digit_version(mmdet_maximum_version)), \
+    f'MMDetection {mmdet.__version__} is incompatible ' \
+    f'with MMOCR {__version__}. ' \
+    f'Please use MMDetection >= {mmdet_minimum_version}, ' \
+    f'< {mmdet_maximum_version} instead.'
+
+__all__ = ['__version__', 'short_version', 'digit_version']
diff --git a/mmocr-dev-1.x/mmocr/apis/__init__.py b/mmocr-dev-1.x/mmocr/apis/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..71141fb7a5962d851b250a5ad71877ef5f80fd4a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/__init__.py
@@ -0,0 +1,2 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .inferencers import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/apis/inferencers/__init__.py b/mmocr-dev-1.x/mmocr/apis/inferencers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..deb4950150fdf68a7dcbb5dcfd4cc5b33e324b41
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/inferencers/__init__.py
@@ -0,0 +1,11 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .kie_inferencer import KIEInferencer
+from .mmocr_inferencer import MMOCRInferencer
+from .textdet_inferencer import TextDetInferencer
+from .textrec_inferencer import TextRecInferencer
+from .textspot_inferencer import TextSpotInferencer
+
+__all__ = [
+    'TextDetInferencer', 'TextRecInferencer', 'KIEInferencer',
+    'MMOCRInferencer', 'TextSpotInferencer'
+]
diff --git a/mmocr-dev-1.x/mmocr/apis/inferencers/base_mmocr_inferencer.py b/mmocr-dev-1.x/mmocr/apis/inferencers/base_mmocr_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..02ac643d9ffea8dddde098aa02038ebfdc1cce25
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/inferencers/base_mmocr_inferencer.py
@@ -0,0 +1,405 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Dict, Iterable, List, Optional, Sequence, Tuple, Union
+
+import mmcv
+import mmengine
+import numpy as np
+from mmengine.dataset import Compose
+from mmengine.infer.infer import BaseInferencer, ModelType
+from mmengine.model.utils import revert_sync_batchnorm
+from mmengine.registry import init_default_scope
+from mmengine.structures import InstanceData
+from rich.progress import track
+from torch import Tensor
+
+from mmocr.utils import ConfigType
+
+InstanceList = List[InstanceData]
+InputType = Union[str, np.ndarray]
+InputsType = Union[InputType, Sequence[InputType]]
+PredType = Union[InstanceData, InstanceList]
+ImgType = Union[np.ndarray, Sequence[np.ndarray]]
+ResType = Union[Dict, List[Dict], InstanceData, List[InstanceData]]
+
+
+class BaseMMOCRInferencer(BaseInferencer):
+    """Base inferencer.
+
+    Args:
+        model (str, optional): Path to the config file or the model name
+            defined in metafile. For example, it could be
+            "dbnet_resnet18_fpnc_1200e_icdar2015" or
+            "configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py".
+            If model is not specified, user must provide the
+            `weights` saved by MMEngine which contains the config string.
+            Defaults to None.
+        weights (str, optional): Path to the checkpoint. If it is not specified
+            and model is a model name of metafile, the weights will be loaded
+            from metafile. Defaults to None.
+        device (str, optional): Device to run inference. If None, the available
+            device will be automatically used. Defaults to None.
+        scope (str, optional): The scope of the model. Defaults to "mmocr".
+    """
+
+    preprocess_kwargs: set = set()
+    forward_kwargs: set = set()
+    visualize_kwargs: set = {
+        'return_vis', 'show', 'wait_time', 'draw_pred', 'pred_score_thr',
+        'save_vis'
+    }
+    postprocess_kwargs: set = {
+        'print_result', 'return_datasample', 'save_pred'
+    }
+    loading_transforms: list = ['LoadImageFromFile', 'LoadImageFromNDArray']
+
+    def __init__(self,
+                 model: Union[ModelType, str, None] = None,
+                 weights: Optional[str] = None,
+                 device: Optional[str] = None,
+                 scope: str = 'mmocr') -> None:
+        # A global counter tracking the number of images given in the form
+        # of ndarray, for naming the output images
+        self.num_unnamed_imgs = 0
+        init_default_scope(scope)
+        super().__init__(
+            model=model, weights=weights, device=device, scope=scope)
+        self.model = revert_sync_batchnorm(self.model)
+
+    def preprocess(self, inputs: InputsType, batch_size: int = 1, **kwargs):
+        """Process the inputs into a model-feedable format.
+
+        Args:
+            inputs (InputsType): Inputs given by user.
+            batch_size (int): batch size. Defaults to 1.
+
+        Yields:
+            Any: Data processed by the ``pipeline`` and ``collate_fn``.
+        """
+        chunked_data = self._get_chunk_data(inputs, batch_size)
+        yield from map(self.collate_fn, chunked_data)
+
+    def _get_chunk_data(self, inputs: Iterable, chunk_size: int):
+        """Get batch data from inputs.
+
+        Args:
+            inputs (Iterable): An iterable dataset.
+            chunk_size (int): Equivalent to batch size.
+
+        Yields:
+            list: batch data.
+        """
+        inputs_iter = iter(inputs)
+        while True:
+            try:
+                chunk_data = []
+                for _ in range(chunk_size):
+                    inputs_ = next(inputs_iter)
+                    pipe_out = self.pipeline(inputs_)
+                    if pipe_out['data_samples'].get('img_path') is None:
+                        pipe_out['data_samples'].set_metainfo(
+                            dict(img_path=f'{self.num_unnamed_imgs}.jpg'))
+                        self.num_unnamed_imgs += 1
+                    chunk_data.append((inputs_, pipe_out))
+                yield chunk_data
+            except StopIteration:
+                if chunk_data:
+                    yield chunk_data
+                break
+
+    def __call__(self,
+                 inputs: InputsType,
+                 return_datasamples: bool = False,
+                 batch_size: int = 1,
+                 progress_bar: bool = True,
+                 return_vis: bool = False,
+                 show: bool = False,
+                 wait_time: int = 0,
+                 draw_pred: bool = True,
+                 pred_score_thr: float = 0.3,
+                 out_dir: str = 'results/',
+                 save_vis: bool = False,
+                 save_pred: bool = False,
+                 print_result: bool = False,
+                 **kwargs) -> dict:
+        """Call the inferencer.
+
+        Args:
+            inputs (InputsType): Inputs for the inferencer. It can be a path
+                to image / image directory, or an array, or a list of these.
+                Note: If it's an numpy array, it should be in BGR order.
+            return_datasamples (bool): Whether to return results as
+                :obj:`BaseDataElement`. Defaults to False.
+            batch_size (int): Inference batch size. Defaults to 1.
+            progress_bar (bool): Whether to show a progress bar. Defaults to
+                True.
+            return_vis (bool): Whether to return the visualization result.
+                Defaults to False.
+            show (bool): Whether to display the visualization results in a
+                popup window. Defaults to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            draw_pred (bool): Whether to draw predicted bounding boxes.
+                Defaults to True.
+            pred_score_thr (float): Minimum score of bboxes to draw.
+                Defaults to 0.3.
+            out_dir (str): Output directory of results. Defaults to 'results/'.
+            save_vis (bool): Whether to save the visualization results to
+                "out_dir". Defaults to False.
+            save_pred (bool): Whether to save the inference results to
+                "out_dir". Defaults to False.
+            print_result (bool): Whether to print the inference result w/o
+                visualization to the console. Defaults to False.
+
+            **kwargs: Other keyword arguments passed to :meth:`preprocess`,
+                :meth:`forward`, :meth:`visualize` and :meth:`postprocess`.
+                Each key in kwargs should be in the corresponding set of
+                ``preprocess_kwargs``, ``forward_kwargs``, ``visualize_kwargs``
+                and ``postprocess_kwargs``.
+
+        Returns:
+            dict: Inference and visualization results, mapped from
+                "predictions" and "visualization".
+        """
+        if (save_vis or save_pred) and not out_dir:
+            raise ValueError('out_dir must be specified when save_vis or '
+                             'save_pred is True!')
+        if out_dir:
+            img_out_dir = osp.join(out_dir, 'vis')
+            pred_out_dir = osp.join(out_dir, 'preds')
+        else:
+            img_out_dir, pred_out_dir = '', ''
+        (
+            preprocess_kwargs,
+            forward_kwargs,
+            visualize_kwargs,
+            postprocess_kwargs,
+        ) = self._dispatch_kwargs(
+            return_vis=return_vis,
+            show=show,
+            wait_time=wait_time,
+            draw_pred=draw_pred,
+            pred_score_thr=pred_score_thr,
+            save_vis=save_vis,
+            save_pred=save_pred,
+            print_result=print_result,
+            **kwargs)
+
+        ori_inputs = self._inputs_to_list(inputs)
+        inputs = self.preprocess(
+            ori_inputs, batch_size=batch_size, **preprocess_kwargs)
+        results = {'predictions': [], 'visualization': []}
+        for ori_inputs, data in track(
+                inputs, description='Inference', disable=not progress_bar):
+            preds = self.forward(data, **forward_kwargs)
+            visualization = self.visualize(
+                ori_inputs, preds, img_out_dir=img_out_dir, **visualize_kwargs)
+            batch_res = self.postprocess(
+                preds,
+                visualization,
+                return_datasamples,
+                pred_out_dir=pred_out_dir,
+                **postprocess_kwargs)
+            results['predictions'].extend(batch_res['predictions'])
+            if return_vis and batch_res['visualization'] is not None:
+                results['visualization'].extend(batch_res['visualization'])
+        return results
+
+    def _init_pipeline(self, cfg: ConfigType) -> Compose:
+        """Initialize the test pipeline."""
+        pipeline_cfg = cfg.test_dataloader.dataset.pipeline
+
+        # For inference, the key of ``instances`` is not used.
+        if 'meta_keys' in pipeline_cfg[-1]:
+            pipeline_cfg[-1]['meta_keys'] = tuple(
+                meta_key for meta_key in pipeline_cfg[-1]['meta_keys']
+                if meta_key != 'instances')
+
+        # Loading annotations is also not applicable
+        idx = self._get_transform_idx(pipeline_cfg, 'LoadOCRAnnotations')
+        if idx != -1:
+            del pipeline_cfg[idx]
+
+        for transform in self.loading_transforms:
+            load_img_idx = self._get_transform_idx(pipeline_cfg, transform)
+            if load_img_idx != -1:
+                pipeline_cfg[load_img_idx]['type'] = 'InferencerLoader'
+                break
+        if load_img_idx == -1:
+            raise ValueError(
+                f'None of {self.loading_transforms} is found in the test '
+                'pipeline')
+
+        return Compose(pipeline_cfg)
+
+    def _get_transform_idx(self, pipeline_cfg: ConfigType, name: str) -> int:
+        """Returns the index of the transform in a pipeline.
+
+        If the transform is not found, returns -1.
+        """
+        for i, transform in enumerate(pipeline_cfg):
+            if transform['type'] == name:
+                return i
+        return -1
+
+    def visualize(self,
+                  inputs: InputsType,
+                  preds: PredType,
+                  return_vis: bool = False,
+                  show: bool = False,
+                  wait_time: int = 0,
+                  draw_pred: bool = True,
+                  pred_score_thr: float = 0.3,
+                  save_vis: bool = False,
+                  img_out_dir: str = '') -> Union[List[np.ndarray], None]:
+        """Visualize predictions.
+
+        Args:
+            inputs (List[Union[str, np.ndarray]]): Inputs for the inferencer.
+            preds (List[Dict]): Predictions of the model.
+            return_vis (bool): Whether to return the visualization result.
+                Defaults to False.
+            show (bool): Whether to display the image in a popup window.
+                Defaults to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            draw_pred (bool): Whether to draw predicted bounding boxes.
+                Defaults to True.
+            pred_score_thr (float): Minimum score of bboxes to draw.
+                Defaults to 0.3.
+            save_vis (bool): Whether to save the visualization result. Defaults
+                to False.
+            img_out_dir (str): Output directory of visualization results.
+                If left as empty, no file will be saved. Defaults to ''.
+
+        Returns:
+            List[np.ndarray] or None: Returns visualization results only if
+            applicable.
+        """
+        if self.visualizer is None or not (show or save_vis or return_vis):
+            return None
+
+        if getattr(self, 'visualizer') is None:
+            raise ValueError('Visualization needs the "visualizer" term'
+                             'defined in the config, but got None.')
+
+        results = []
+
+        for single_input, pred in zip(inputs, preds):
+            if isinstance(single_input, str):
+                img_bytes = mmengine.fileio.get(single_input)
+                img = mmcv.imfrombytes(img_bytes, channel_order='rgb')
+            elif isinstance(single_input, np.ndarray):
+                img = single_input.copy()[:, :, ::-1]  # to RGB
+            else:
+                raise ValueError('Unsupported input type: '
+                                 f'{type(single_input)}')
+            img_name = osp.splitext(osp.basename(pred.img_path))[0]
+
+            if save_vis and img_out_dir:
+                out_file = osp.splitext(img_name)[0]
+                out_file = f'{out_file}.jpg'
+                out_file = osp.join(img_out_dir, out_file)
+            else:
+                out_file = None
+
+            visualization = self.visualizer.add_datasample(
+                img_name,
+                img,
+                pred,
+                show=show,
+                wait_time=wait_time,
+                draw_gt=False,
+                draw_pred=draw_pred,
+                pred_score_thr=pred_score_thr,
+                out_file=out_file,
+            )
+            results.append(visualization)
+
+        return results
+
+    def postprocess(
+        self,
+        preds: PredType,
+        visualization: Optional[List[np.ndarray]] = None,
+        return_datasample: bool = False,
+        print_result: bool = False,
+        save_pred: bool = False,
+        pred_out_dir: str = '',
+    ) -> Union[ResType, Tuple[ResType, np.ndarray]]:
+        """Process the predictions and visualization results from ``forward``
+        and ``visualize``.
+
+        This method should be responsible for the following tasks:
+
+        1. Convert datasamples into a json-serializable dict if needed.
+        2. Pack the predictions and visualization results and return them.
+        3. Dump or log the predictions.
+
+        Args:
+            preds (List[Dict]): Predictions of the model.
+            visualization (Optional[np.ndarray]): Visualized predictions.
+            return_datasample (bool): Whether to use Datasample to store
+                inference results. If False, dict will be used.
+            print_result (bool): Whether to print the inference result w/o
+                visualization to the console. Defaults to False.
+            save_pred (bool): Whether to save the inference result. Defaults to
+                False.
+            pred_out_dir: File to save the inference results w/o
+                visualization. If left as empty, no file will be saved.
+                Defaults to ''.
+
+        Returns:
+            dict: Inference and visualization results with key ``predictions``
+            and ``visualization``.
+
+            - ``visualization`` (Any): Returned by :meth:`visualize`.
+            - ``predictions`` (dict or DataSample): Returned by
+                :meth:`forward` and processed in :meth:`postprocess`.
+                If ``return_datasample=False``, it usually should be a
+                json-serializable dict containing only basic data elements such
+                as strings and numbers.
+        """
+        result_dict = {}
+        results = preds
+        if not return_datasample:
+            results = []
+            for pred in preds:
+                result = self.pred2dict(pred)
+                if save_pred and pred_out_dir:
+                    pred_name = osp.splitext(osp.basename(pred.img_path))[0]
+                    pred_name = f'{pred_name}.json'
+                    pred_out_file = osp.join(pred_out_dir, pred_name)
+                    mmengine.dump(result, pred_out_file)
+                results.append(result)
+        # Add img to the results after printing and dumping
+        result_dict['predictions'] = results
+        if print_result:
+            print(result_dict)
+        result_dict['visualization'] = visualization
+        return result_dict
+
+    def pred2dict(self, data_sample: InstanceData) -> Dict:
+        """Extract elements necessary to represent a prediction into a
+        dictionary.
+
+        It's better to contain only basic data elements such as strings and
+        numbers in order to guarantee it's json-serializable.
+        """
+        raise NotImplementedError
+
+    def _array2list(self, array: Union[Tensor, np.ndarray,
+                                       List]) -> List[float]:
+        """Convert a tensor or numpy array to a list.
+
+        Args:
+            array (Union[Tensor, np.ndarray]): The array to be converted.
+
+        Returns:
+            List[float]: The converted list.
+        """
+        if isinstance(array, Tensor):
+            return array.detach().cpu().numpy().tolist()
+        if isinstance(array, np.ndarray):
+            return array.tolist()
+        if isinstance(array, list):
+            array = [self._array2list(arr) for arr in array]
+        return array
diff --git a/mmocr-dev-1.x/mmocr/apis/inferencers/kie_inferencer.py b/mmocr-dev-1.x/mmocr/apis/inferencers/kie_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..c7865d5c9b756d3556538304023039a6648b07db
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/inferencers/kie_inferencer.py
@@ -0,0 +1,285 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import os.path as osp
+from typing import Any, Dict, List, Optional, Sequence, Union
+
+import mmcv
+import mmengine
+import numpy as np
+from mmengine.dataset import Compose, pseudo_collate
+from mmengine.runner.checkpoint import _load_checkpoint
+
+from mmocr.registry import DATASETS
+from mmocr.structures import KIEDataSample
+from mmocr.utils import ConfigType
+from .base_mmocr_inferencer import BaseMMOCRInferencer, ModelType, PredType
+
+InputType = Dict
+InputsType = Sequence[Dict]
+
+
+class KIEInferencer(BaseMMOCRInferencer):
+    """Key Information Extraction Inferencer.
+
+    Args:
+        model (str, optional): Path to the config file or the model name
+            defined in metafile. For example, it could be
+            "sdmgr_unet16_60e_wildreceipt" or
+            "configs/kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py".
+            If model is not specified, user must provide the
+            `weights` saved by MMEngine which contains the config string.
+            Defaults to None.
+        weights (str, optional): Path to the checkpoint. If it is not specified
+            and model is a model name of metafile, the weights will be loaded
+            from metafile. Defaults to None.
+        device (str, optional): Device to run inference. If None, the available
+            device will be automatically used. Defaults to None.
+        scope (str, optional): The scope of the model. Defaults to "mmocr".
+    """
+
+    def __init__(self,
+                 model: Union[ModelType, str, None] = None,
+                 weights: Optional[str] = None,
+                 device: Optional[str] = None,
+                 scope: Optional[str] = 'mmocr') -> None:
+        super().__init__(
+            model=model, weights=weights, device=device, scope=scope)
+        self._load_metainfo_to_visualizer(weights, self.cfg)
+        self.collate_fn = self.kie_collate
+
+    def _load_metainfo_to_visualizer(self, weights: Optional[str],
+                                     cfg: ConfigType) -> None:
+        """Load meta information to visualizer."""
+        if hasattr(self, 'visualizer'):
+            if weights is not None:
+                w = _load_checkpoint(weights, map_location='cpu')
+                if w and 'meta' in w and 'dataset_meta' in w['meta']:
+                    self.visualizer.dataset_meta = w['meta']['dataset_meta']
+                    return
+            if 'test_dataloader' in cfg:
+                dataset_cfg = copy.deepcopy(cfg.test_dataloader.dataset)
+                dataset_cfg['lazy_init'] = True
+                dataset_cfg['metainfo'] = None
+                dataset = DATASETS.build(dataset_cfg)
+                self.visualizer.dataset_meta = dataset.metainfo
+            else:
+                raise ValueError(
+                    'KIEVisualizer requires meta information from weights or '
+                    'test dataset, but none of them is provided.')
+
+    def _init_pipeline(self, cfg: ConfigType) -> None:
+        """Initialize the test pipeline."""
+        pipeline_cfg = cfg.test_dataloader.dataset.pipeline
+        idx = self._get_transform_idx(pipeline_cfg, 'LoadKIEAnnotations')
+        if idx == -1:
+            raise ValueError(
+                'LoadKIEAnnotations is not found in the test pipeline')
+        pipeline_cfg[idx]['with_label'] = False
+        self.novisual = all(
+            self._get_transform_idx(pipeline_cfg, t) == -1
+            for t in self.loading_transforms)
+        # Remove Resize from test_pipeline, since SDMGR requires bbox
+        # annotations to be resized together with pictures, but visualization
+        # loads the original image from the disk.
+        # TODO: find a more elegant way to fix this
+        idx = self._get_transform_idx(pipeline_cfg, 'Resize')
+        if idx != -1:
+            pipeline_cfg.pop(idx)
+        # If it's in non-visual mode, self.pipeline will be specified.
+        # Otherwise, file_pipeline and ndarray_pipeline will be specified.
+        if self.novisual:
+            return Compose(pipeline_cfg)
+        return super()._init_pipeline(cfg)
+
+    @staticmethod
+    def kie_collate(data_batch: Sequence) -> Any:
+        """A collate function designed for KIE, where the first element (input)
+        is a dict and we only want to keep it as-is instead of batching
+        elements inside.
+
+        Returns:
+            Any: Transversed Data in the same format as the data_itement of
+            ``data_batch``.
+        """  # noqa: E501
+        transposed = list(zip(*data_batch))
+        for i in range(1, len(transposed)):
+            transposed[i] = pseudo_collate(transposed[i])
+        return transposed
+
+    def _inputs_to_list(self, inputs: InputsType) -> list:
+        """Preprocess the inputs to a list.
+
+        Preprocess inputs to a list according to its type.
+
+        The inputs can be a dict or list[dict], where each dictionary contains
+        following keys:
+
+        - img (str or ndarray): Path to the image or the image itself. If KIE
+          Inferencer is used in no-visual mode, this key is not required.
+          Note: If it's an numpy array, it should be in BGR order.
+        - img_shape (tuple(int, int)): Image shape in (H, W). In
+        - instances (list[dict]): A list of instances.
+            - bbox (ndarray(dtype=np.float32)): Shape (4, ). Bounding box.
+            - text (str): Annotation text.
+
+        Each ``instance`` looks like the following:
+
+        .. code-block:: python
+
+        {
+            # A nested list of 4 numbers representing the bounding box of
+            # the instance, in (x1, y1, x2, y2) order.
+            'bbox': np.array([[x1, y1, x2, y2], [x1, y1, x2, y2], ...],
+                            dtype=np.int32),
+
+            # List of texts.
+            "texts": ['text1', 'text2', ...],
+        }
+
+        Args:
+            inputs (InputsType): Inputs for the inferencer.
+
+        Returns:
+            list: List of input for the :meth:`preprocess`.
+        """
+
+        processed_inputs = []
+
+        if not isinstance(inputs, (list, tuple)):
+            inputs = [inputs]
+
+        for single_input in inputs:
+            if self.novisual:
+                processed_input = copy.deepcopy(single_input)
+                if 'img' not in single_input and \
+                   'img_shape' not in single_input:
+                    raise ValueError(
+                        'KIEInferencer in no-visual mode '
+                        'requires input has "img" or "img_shape", but both are'
+                        ' not found.')
+                if 'img' in single_input:
+                    img = single_input['img']
+                    if isinstance(img, str):
+                        img_bytes = mmengine.fileio.get(img)
+                        img = mmcv.imfrombytes(img_bytes)
+                        processed_input['img'] = img
+                    processed_input['img_shape'] = img.shape[:2]
+                processed_inputs.append(processed_input)
+            else:
+                if 'img' not in single_input:
+                    raise ValueError(
+                        'This inferencer is constructed to '
+                        'accept image inputs, but the input does not contain '
+                        '"img" key.')
+                if isinstance(single_input['img'], str):
+                    processed_input = {
+                        k: v
+                        for k, v in single_input.items() if k != 'img'
+                    }
+                    processed_input['img_path'] = single_input['img']
+                    processed_inputs.append(processed_input)
+                elif isinstance(single_input['img'], np.ndarray):
+                    processed_inputs.append(copy.deepcopy(single_input))
+                else:
+                    atype = type(single_input['img'])
+                    raise ValueError(f'Unsupported input type: {atype}')
+
+        return processed_inputs
+
+    def visualize(self,
+                  inputs: InputsType,
+                  preds: PredType,
+                  return_vis: bool = False,
+                  show: bool = False,
+                  wait_time: int = 0,
+                  draw_pred: bool = True,
+                  pred_score_thr: float = 0.3,
+                  save_vis: bool = False,
+                  img_out_dir: str = '') -> Union[List[np.ndarray], None]:
+        """Visualize predictions.
+
+        Args:
+            inputs (List[Union[str, np.ndarray]]): Inputs for the inferencer.
+            preds (List[Dict]): Predictions of the model.
+            return_vis (bool): Whether to return the visualization result.
+                Defaults to False.
+            show (bool): Whether to display the image in a popup window.
+                Defaults to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            draw_pred (bool): Whether to draw predicted bounding boxes.
+                Defaults to True.
+            pred_score_thr (float): Minimum score of bboxes to draw.
+                Defaults to 0.3.
+            save_vis (bool): Whether to save the visualization result. Defaults
+                to False.
+            img_out_dir (str): Output directory of visualization results.
+                If left as empty, no file will be saved. Defaults to ''.
+
+        Returns:
+            List[np.ndarray] or None: Returns visualization results only if
+            applicable.
+        """
+        if self.visualizer is None or not (show or save_vis or return_vis):
+            return None
+
+        if getattr(self, 'visualizer') is None:
+            raise ValueError('Visualization needs the "visualizer" term'
+                             'defined in the config, but got None.')
+
+        results = []
+
+        for single_input, pred in zip(inputs, preds):
+            assert 'img' in single_input or 'img_shape' in single_input
+            if 'img' in single_input:
+                if isinstance(single_input['img'], str):
+                    img_bytes = mmengine.fileio.get(single_input['img'])
+                    img = mmcv.imfrombytes(img_bytes, channel_order='rgb')
+                elif isinstance(single_input['img'], np.ndarray):
+                    img = single_input['img'].copy()[:, :, ::-1]  # To RGB
+            elif 'img_shape' in single_input:
+                img = np.zeros(single_input['img_shape'], dtype=np.uint8)
+            else:
+                raise ValueError('Input does not contain either "img" or '
+                                 '"img_shape"')
+            img_name = osp.splitext(osp.basename(pred.img_path))[0]
+
+            if save_vis and img_out_dir:
+                out_file = osp.splitext(img_name)[0]
+                out_file = f'{out_file}.jpg'
+                out_file = osp.join(img_out_dir, out_file)
+            else:
+                out_file = None
+
+            visualization = self.visualizer.add_datasample(
+                img_name,
+                img,
+                pred,
+                show=show,
+                wait_time=wait_time,
+                draw_gt=False,
+                draw_pred=draw_pred,
+                pred_score_thr=pred_score_thr,
+                out_file=out_file,
+            )
+            results.append(visualization)
+
+        return results
+
+    def pred2dict(self, data_sample: KIEDataSample) -> Dict:
+        """Extract elements necessary to represent a prediction into a
+        dictionary. It's better to contain only basic data elements such as
+        strings and numbers in order to guarantee it's json-serializable.
+
+        Args:
+            data_sample (TextRecogDataSample): The data sample to be converted.
+
+        Returns:
+            dict: The output dictionary.
+        """
+        result = {}
+        pred = data_sample.pred_instances
+        result['scores'] = pred.scores.cpu().numpy().tolist()
+        result['edge_scores'] = pred.edge_scores.cpu().numpy().tolist()
+        result['edge_labels'] = pred.edge_labels.cpu().numpy().tolist()
+        result['labels'] = pred.labels.cpu().numpy().tolist()
+        return result
diff --git a/mmocr-dev-1.x/mmocr/apis/inferencers/mmocr_inferencer.py b/mmocr-dev-1.x/mmocr/apis/inferencers/mmocr_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..be7f74237875ed42ef5cb099957662c8a125d94c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/inferencers/mmocr_inferencer.py
@@ -0,0 +1,422 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from datetime import datetime
+from typing import Dict, List, Optional, Tuple, Union
+
+import mmcv
+import mmengine
+import numpy as np
+from rich.progress import track
+
+from mmocr.registry import VISUALIZERS
+from mmocr.structures import TextSpottingDataSample
+from mmocr.utils import ConfigType, bbox2poly, crop_img, poly2bbox
+from .base_mmocr_inferencer import (BaseMMOCRInferencer, InputsType, PredType,
+                                    ResType)
+from .kie_inferencer import KIEInferencer
+from .textdet_inferencer import TextDetInferencer
+from .textrec_inferencer import TextRecInferencer
+
+
+class MMOCRInferencer(BaseMMOCRInferencer):
+    """MMOCR Inferencer. It's a wrapper around three base task
+    inferenecers: TextDetInferencer, TextRecInferencer and KIEInferencer,
+    and it can be used to perform end-to-end OCR or KIE inference.
+
+    Args:
+        det (Optional[Union[ConfigType, str]]): Pretrained text detection
+            algorithm. It's the path to the config file or the model name
+            defined in metafile. Defaults to None.
+        det_weights (Optional[str]): Path to the custom checkpoint file of
+            the selected det model. If it is not specified and "det" is a model
+            name of metafile, the weights will be loaded from metafile.
+            Defaults to None.
+        rec (Optional[Union[ConfigType, str]]): Pretrained text recognition
+            algorithm. It's the path to the config file or the model name
+            defined in metafile. Defaults to None.
+        rec_weights (Optional[str]): Path to the custom checkpoint file of
+            the selected rec model. If it is not specified and "rec" is a model
+            name of metafile, the weights will be loaded from metafile.
+            Defaults to None.
+        kie (Optional[Union[ConfigType, str]]): Pretrained key information
+            extraction algorithm. It's the path to the config file or the model
+            name defined in metafile. Defaults to None.
+        kie_weights (Optional[str]): Path to the custom checkpoint file of
+            the selected kie model. If it is not specified and "kie" is a model
+            name of metafile, the weights will be loaded from metafile.
+            Defaults to None.
+        device (Optional[str]): Device to run inference. If None, the available
+            device will be automatically used. Defaults to None.
+
+    """
+
+    def __init__(self,
+                 det: Optional[Union[ConfigType, str]] = None,
+                 det_weights: Optional[str] = None,
+                 rec: Optional[Union[ConfigType, str]] = None,
+                 rec_weights: Optional[str] = None,
+                 kie: Optional[Union[ConfigType, str]] = None,
+                 kie_weights: Optional[str] = None,
+                 device: Optional[str] = None) -> None:
+
+        if det is None and rec is None and kie is None:
+            raise ValueError('At least one of det, rec and kie should be '
+                             'provided.')
+
+        self.visualizer = None
+
+        if det is not None:
+            self.textdet_inferencer = TextDetInferencer(
+                det, det_weights, device)
+            self.mode = 'det'
+        if rec is not None:
+            self.textrec_inferencer = TextRecInferencer(
+                rec, rec_weights, device)
+            if getattr(self, 'mode', None) == 'det':
+                self.mode = 'det_rec'
+                ts = str(datetime.timestamp(datetime.now()))
+                self.visualizer = VISUALIZERS.build(
+                    dict(
+                        type='TextSpottingLocalVisualizer',
+                        name=f'inferencer{ts}',
+                        font_families=self.textrec_inferencer.visualizer.
+                        font_families))
+            else:
+                self.mode = 'rec'
+        if kie is not None:
+            if det is None or rec is None:
+                raise ValueError(
+                    'kie_config is only applicable when det_config and '
+                    'rec_config are both provided')
+            self.kie_inferencer = KIEInferencer(kie, kie_weights, device)
+            self.mode = 'det_rec_kie'
+
+    def _inputs2ndarrray(self, inputs: List[InputsType]) -> List[np.ndarray]:
+        """Preprocess the inputs to a list of numpy arrays."""
+        new_inputs = []
+        for item in inputs:
+            if isinstance(item, np.ndarray):
+                new_inputs.append(item)
+            elif isinstance(item, str):
+                img_bytes = mmengine.fileio.get(item)
+                new_inputs.append(mmcv.imfrombytes(img_bytes))
+            else:
+                raise NotImplementedError(f'The input type {type(item)} is not'
+                                          'supported yet.')
+        return new_inputs
+
+    def forward(self,
+                inputs: InputsType,
+                batch_size: int = 1,
+                det_batch_size: Optional[int] = None,
+                rec_batch_size: Optional[int] = None,
+                kie_batch_size: Optional[int] = None,
+                **forward_kwargs) -> PredType:
+        """Forward the inputs to the model.
+
+        Args:
+            inputs (InputsType): The inputs to be forwarded.
+            batch_size (int): Batch size. Defaults to 1.
+            det_batch_size (Optional[int]): Batch size for text detection
+                model. Overwrite batch_size if it is not None.
+                Defaults to None.
+            rec_batch_size (Optional[int]): Batch size for text recognition
+                model. Overwrite batch_size if it is not None.
+                Defaults to None.
+            kie_batch_size (Optional[int]): Batch size for KIE model.
+                Overwrite batch_size if it is not None.
+                Defaults to None.
+
+        Returns:
+            Dict: The prediction results. Possibly with keys "det", "rec", and
+            "kie"..
+        """
+        result = {}
+        forward_kwargs['progress_bar'] = False
+        if det_batch_size is None:
+            det_batch_size = batch_size
+        if rec_batch_size is None:
+            rec_batch_size = batch_size
+        if kie_batch_size is None:
+            kie_batch_size = batch_size
+        if self.mode == 'rec':
+            # The extra list wrapper here is for the ease of postprocessing
+            self.rec_inputs = inputs
+            predictions = self.textrec_inferencer(
+                self.rec_inputs,
+                return_datasamples=True,
+                batch_size=rec_batch_size,
+                **forward_kwargs)['predictions']
+            result['rec'] = [[p] for p in predictions]
+        elif self.mode.startswith('det'):  # 'det'/'det_rec'/'det_rec_kie'
+            result['det'] = self.textdet_inferencer(
+                inputs,
+                return_datasamples=True,
+                batch_size=det_batch_size,
+                **forward_kwargs)['predictions']
+            if self.mode.startswith('det_rec'):  # 'det_rec'/'det_rec_kie'
+                result['rec'] = []
+                for img, det_data_sample in zip(
+                        self._inputs2ndarrray(inputs), result['det']):
+                    det_pred = det_data_sample.pred_instances
+                    self.rec_inputs = []
+                    for polygon in det_pred['polygons']:
+                        # Roughly convert the polygon to a quadangle with
+                        # 4 points
+                        quad = bbox2poly(poly2bbox(polygon)).tolist()
+                        self.rec_inputs.append(crop_img(img, quad))
+                    result['rec'].append(
+                        self.textrec_inferencer(
+                            self.rec_inputs,
+                            return_datasamples=True,
+                            batch_size=rec_batch_size,
+                            **forward_kwargs)['predictions'])
+                if self.mode == 'det_rec_kie':
+                    self.kie_inputs = []
+                    # TODO: when the det output is empty, kie will fail
+                    # as no gt-instances can be provided. It's a known
+                    # issue but cannot be solved elegantly since we support
+                    # batch inference.
+                    for img, det_data_sample, rec_data_samples in zip(
+                            inputs, result['det'], result['rec']):
+                        det_pred = det_data_sample.pred_instances
+                        kie_input = dict(img=img)
+                        kie_input['instances'] = []
+                        for polygon, rec_data_sample in zip(
+                                det_pred['polygons'], rec_data_samples):
+                            kie_input['instances'].append(
+                                dict(
+                                    bbox=poly2bbox(polygon),
+                                    text=rec_data_sample.pred_text.item))
+                        self.kie_inputs.append(kie_input)
+                    result['kie'] = self.kie_inferencer(
+                        self.kie_inputs,
+                        return_datasamples=True,
+                        batch_size=kie_batch_size,
+                        **forward_kwargs)['predictions']
+        return result
+
+    def visualize(self, inputs: InputsType, preds: PredType,
+                  **kwargs) -> Union[List[np.ndarray], None]:
+        """Visualize predictions.
+
+        Args:
+            inputs (List[Union[str, np.ndarray]]): Inputs for the inferencer.
+            preds (List[Dict]): Predictions of the model.
+            show (bool): Whether to display the image in a popup window.
+                Defaults to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            draw_pred (bool): Whether to draw predicted bounding boxes.
+                Defaults to True.
+            pred_score_thr (float): Minimum score of bboxes to draw.
+                Defaults to 0.3.
+            save_vis (bool): Whether to save the visualization result. Defaults
+                to False.
+            img_out_dir (str): Output directory of visualization results.
+                If left as empty, no file will be saved. Defaults to ''.
+
+        Returns:
+            List[np.ndarray] or None: Returns visualization results only if
+            applicable.
+        """
+
+        if 'kie' in self.mode:
+            return self.kie_inferencer.visualize(self.kie_inputs, preds['kie'],
+                                                 **kwargs)
+        elif 'rec' in self.mode:
+            if 'det' in self.mode:
+                return super().visualize(inputs,
+                                         self._pack_e2e_datasamples(preds),
+                                         **kwargs)
+            else:
+                return self.textrec_inferencer.visualize(
+                    self.rec_inputs, preds['rec'][0], **kwargs)
+        else:
+            return self.textdet_inferencer.visualize(inputs, preds['det'],
+                                                     **kwargs)
+
+    def __call__(
+        self,
+        inputs: InputsType,
+        batch_size: int = 1,
+        det_batch_size: Optional[int] = None,
+        rec_batch_size: Optional[int] = None,
+        kie_batch_size: Optional[int] = None,
+        out_dir: str = 'results/',
+        return_vis: bool = False,
+        save_vis: bool = False,
+        save_pred: bool = False,
+        **kwargs,
+    ) -> dict:
+        """Call the inferencer.
+
+        Args:
+            inputs (InputsType): Inputs for the inferencer. It can be a path
+                to image / image directory, or an array, or a list of these.
+            batch_size (int): Batch size. Defaults to 1.
+            det_batch_size (Optional[int]): Batch size for text detection
+                model. Overwrite batch_size if it is not None.
+                Defaults to None.
+            rec_batch_size (Optional[int]): Batch size for text recognition
+                model. Overwrite batch_size if it is not None.
+                Defaults to None.
+            kie_batch_size (Optional[int]): Batch size for KIE model.
+                Overwrite batch_size if it is not None.
+                Defaults to None.
+            out_dir (str): Output directory of results. Defaults to 'results/'.
+            return_vis (bool): Whether to return the visualization result.
+                Defaults to False.
+            save_vis (bool): Whether to save the visualization results to
+                "out_dir". Defaults to False.
+            save_pred (bool): Whether to save the inference results to
+                "out_dir". Defaults to False.
+            **kwargs: Key words arguments passed to :meth:`preprocess`,
+                :meth:`forward`, :meth:`visualize` and :meth:`postprocess`.
+                Each key in kwargs should be in the corresponding set of
+                ``preprocess_kwargs``, ``forward_kwargs``, ``visualize_kwargs``
+                and ``postprocess_kwargs``.
+
+        Returns:
+            dict: Inference and visualization results, mapped from
+                "predictions" and "visualization".
+        """
+        if (save_vis or save_pred) and not out_dir:
+            raise ValueError('out_dir must be specified when save_vis or '
+                             'save_pred is True!')
+        if out_dir:
+            img_out_dir = osp.join(out_dir, 'vis')
+            pred_out_dir = osp.join(out_dir, 'preds')
+        else:
+            img_out_dir, pred_out_dir = '', ''
+
+        (
+            preprocess_kwargs,
+            forward_kwargs,
+            visualize_kwargs,
+            postprocess_kwargs,
+        ) = self._dispatch_kwargs(
+            save_vis=save_vis,
+            save_pred=save_pred,
+            return_vis=return_vis,
+            **kwargs)
+
+        ori_inputs = self._inputs_to_list(inputs)
+        if det_batch_size is None:
+            det_batch_size = batch_size
+        if rec_batch_size is None:
+            rec_batch_size = batch_size
+        if kie_batch_size is None:
+            kie_batch_size = batch_size
+
+        chunked_inputs = super(BaseMMOCRInferencer,
+                               self)._get_chunk_data(ori_inputs, batch_size)
+        results = {'predictions': [], 'visualization': []}
+        for ori_input in track(chunked_inputs, description='Inference'):
+            preds = self.forward(
+                ori_input,
+                det_batch_size=det_batch_size,
+                rec_batch_size=rec_batch_size,
+                kie_batch_size=kie_batch_size,
+                **forward_kwargs)
+            visualization = self.visualize(
+                ori_input, preds, img_out_dir=img_out_dir, **visualize_kwargs)
+            batch_res = self.postprocess(
+                preds,
+                visualization,
+                pred_out_dir=pred_out_dir,
+                **postprocess_kwargs)
+            results['predictions'].extend(batch_res['predictions'])
+            if return_vis and batch_res['visualization'] is not None:
+                results['visualization'].extend(batch_res['visualization'])
+        return results
+
+    def postprocess(self,
+                    preds: PredType,
+                    visualization: Optional[List[np.ndarray]] = None,
+                    print_result: bool = False,
+                    save_pred: bool = False,
+                    pred_out_dir: str = ''
+                    ) -> Union[ResType, Tuple[ResType, np.ndarray]]:
+        """Process the predictions and visualization results from ``forward``
+        and ``visualize``.
+
+        This method should be responsible for the following tasks:
+
+        1. Convert datasamples into a json-serializable dict if needed.
+        2. Pack the predictions and visualization results and return them.
+        3. Dump or log the predictions.
+
+        Args:
+            preds (PredType): Predictions of the model.
+            visualization (Optional[np.ndarray]): Visualized predictions.
+            print_result (bool): Whether to print the result.
+                Defaults to False.
+            save_pred (bool): Whether to save the inference result. Defaults to
+                False.
+            pred_out_dir: File to save the inference results w/o
+                visualization. If left as empty, no file will be saved.
+                Defaults to ''.
+
+        Returns:
+            Dict: Inference and visualization results, mapped from
+                "predictions" and "visualization".
+        """
+
+        result_dict = {}
+        pred_results = [{} for _ in range(len(next(iter(preds.values()))))]
+        if 'rec' in self.mode:
+            for i, rec_pred in enumerate(preds['rec']):
+                result = dict(rec_texts=[], rec_scores=[])
+                for rec_pred_instance in rec_pred:
+                    rec_dict_res = self.textrec_inferencer.pred2dict(
+                        rec_pred_instance)
+                    result['rec_texts'].append(rec_dict_res['text'])
+                    result['rec_scores'].append(rec_dict_res['scores'])
+                pred_results[i].update(result)
+        if 'det' in self.mode:
+            for i, det_pred in enumerate(preds['det']):
+                det_dict_res = self.textdet_inferencer.pred2dict(det_pred)
+                pred_results[i].update(
+                    dict(
+                        det_polygons=det_dict_res['polygons'],
+                        det_scores=det_dict_res['scores']))
+        if 'kie' in self.mode:
+            for i, kie_pred in enumerate(preds['kie']):
+                kie_dict_res = self.kie_inferencer.pred2dict(kie_pred)
+                pred_results[i].update(
+                    dict(
+                        kie_labels=kie_dict_res['labels'],
+                        kie_scores=kie_dict_res['scores']),
+                    kie_edge_scores=kie_dict_res['edge_scores'],
+                    kie_edge_labels=kie_dict_res['edge_labels'])
+
+        if save_pred and pred_out_dir:
+            pred_key = 'det' if 'det' in self.mode else 'rec'
+            for pred, pred_result in zip(preds[pred_key], pred_results):
+                img_path = (
+                    pred.img_path if pred_key == 'det' else pred[0].img_path)
+                pred_name = osp.splitext(osp.basename(img_path))[0]
+                pred_name = f'{pred_name}.json'
+                pred_out_file = osp.join(pred_out_dir, pred_name)
+                mmengine.dump(pred_result, pred_out_file)
+
+        result_dict['predictions'] = pred_results
+        if print_result:
+            print(result_dict)
+        result_dict['visualization'] = visualization
+        return result_dict
+
+    def _pack_e2e_datasamples(self,
+                              preds: Dict) -> List[TextSpottingDataSample]:
+        """Pack text detection and recognition results into a list of
+        TextSpottingDataSample."""
+        results = []
+
+        for det_data_sample, rec_data_samples in zip(preds['det'],
+                                                     preds['rec']):
+            texts = []
+            for rec_data_sample in rec_data_samples:
+                texts.append(rec_data_sample.pred_text.item)
+            det_data_sample.pred_instances.texts = texts
+            results.append(det_data_sample)
+        return results
diff --git a/mmocr-dev-1.x/mmocr/apis/inferencers/textdet_inferencer.py b/mmocr-dev-1.x/mmocr/apis/inferencers/textdet_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..8c526d91a648f9117b5b59c51bd404a3534e5097
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/inferencers/textdet_inferencer.py
@@ -0,0 +1,45 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict
+
+from mmocr.structures import TextDetDataSample
+from .base_mmocr_inferencer import BaseMMOCRInferencer
+
+
+class TextDetInferencer(BaseMMOCRInferencer):
+    """Text Detection inferencer.
+
+    Args:
+        model (str, optional): Path to the config file or the model name
+            defined in metafile. For example, it could be
+            "dbnet_resnet18_fpnc_1200e_icdar2015" or
+            "configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py".
+            If model is not specified, user must provide the
+            `weights` saved by MMEngine which contains the config string.
+            Defaults to None.
+        weights (str, optional): Path to the checkpoint. If it is not specified
+            and model is a model name of metafile, the weights will be loaded
+            from metafile. Defaults to None.
+        device (str, optional): Device to run inference. If None, the available
+            device will be automatically used. Defaults to None.
+        scope (str, optional): The scope of the model. Defaults to "mmocr".
+    """
+
+    def pred2dict(self, data_sample: TextDetDataSample) -> Dict:
+        """Extract elements necessary to represent a prediction into a
+        dictionary. It's better to contain only basic data elements such as
+        strings and numbers in order to guarantee it's json-serializable.
+
+        Args:
+            data_sample (TextDetDataSample): The data sample to be converted.
+
+        Returns:
+            dict: The output dictionary.
+        """
+        result = {}
+        pred_instances = data_sample.pred_instances
+        if 'polygons' in pred_instances:
+            result['polygons'] = self._array2list(pred_instances.polygons)
+        if 'bboxes' in pred_instances:
+            result['bboxes'] = self._array2list(pred_instances.bboxes)
+        result['scores'] = self._array2list(pred_instances.scores)
+        return result
diff --git a/mmocr-dev-1.x/mmocr/apis/inferencers/textrec_inferencer.py b/mmocr-dev-1.x/mmocr/apis/inferencers/textrec_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..cc78a8fe6a165500fac31cf993c63868862a8954
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/inferencers/textrec_inferencer.py
@@ -0,0 +1,44 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict
+
+import numpy as np
+
+from mmocr.structures import TextRecogDataSample
+from .base_mmocr_inferencer import BaseMMOCRInferencer
+
+
+class TextRecInferencer(BaseMMOCRInferencer):
+    """Text Recognition inferencer.
+
+    Args:
+        model (str, optional): Path to the config file or the model name
+            defined in metafile. For example, it could be
+            "crnn_mini-vgg_5e_mj" or
+            "configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py".
+            If model is not specified, user must provide the
+            `weights` saved by MMEngine which contains the config string.
+            Defaults to None.
+        weights (str, optional): Path to the checkpoint. If it is not specified
+            and model is a model name of metafile, the weights will be loaded
+            from metafile. Defaults to None.
+        device (str, optional): Device to run inference. If None, the available
+            device will be automatically used. Defaults to None.
+        scope (str, optional): The scope of the model. Defaults to "mmocr".
+    """
+
+    def pred2dict(self, data_sample: TextRecogDataSample) -> Dict:
+        """Extract elements necessary to represent a prediction into a
+        dictionary. It's better to contain only basic data elements such as
+        strings and numbers in order to guarantee it's json-serializable.
+
+        Args:
+            data_sample (TextRecogDataSample): The data sample to be converted.
+
+        Returns:
+            dict: The output dictionary.
+        """
+        result = {}
+        result['text'] = data_sample.pred_text.item
+        score = self._array2list(data_sample.pred_text.score)
+        result['scores'] = float(np.mean(score))
+        return result
diff --git a/mmocr-dev-1.x/mmocr/apis/inferencers/textspot_inferencer.py b/mmocr-dev-1.x/mmocr/apis/inferencers/textspot_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..374894cbe37f0d6a90d04f772710a5d0a278a3a6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/apis/inferencers/textspot_inferencer.py
@@ -0,0 +1,47 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict
+
+from mmocr.structures import TextSpottingDataSample
+from .base_mmocr_inferencer import BaseMMOCRInferencer
+
+
+class TextSpotInferencer(BaseMMOCRInferencer):
+    """Text Spotting inferencer.
+
+    Args:
+        model (str, optional): Path to the config file or the model name
+            defined in metafile. For example, it could be
+            "dbnet_resnet18_fpnc_1200e_icdar2015" or
+            "configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py".
+            If model is not specified, user must provide the
+            `weights` saved by MMEngine which contains the config string.
+            Defaults to None.
+        weights (str, optional): Path to the checkpoint. If it is not specified
+            and model is a model name of metafile, the weights will be loaded
+            from metafile. Defaults to None.
+        device (str, optional): Device to run inference. If None, the available
+            device will be automatically used. Defaults to None.
+        scope (str, optional): The scope of the model. Defaults to "mmocr".
+    """
+
+    def pred2dict(self, data_sample: TextSpottingDataSample) -> Dict:
+        """Extract elements necessary to represent a prediction into a
+        dictionary. It's better to contain only basic data elements such as
+        strings and numbers in order to guarantee it's json-serializable.
+
+        Args:
+            data_sample (TextSpottingDataSample): The data sample to be
+                converted.
+
+        Returns:
+            dict: The output dictionary.
+        """
+        result = {}
+        pred_instances = data_sample.pred_instances
+        if 'polygons' in pred_instances:
+            result['polygons'] = self._array2list(pred_instances.polygons)
+        if 'bboxes' in pred_instances:
+            result['bboxes'] = self._array2list(pred_instances.bboxes)
+        result['scores'] = self._array2list(pred_instances.scores)
+        result['texts'] = pred_instances.texts
+        return result
diff --git a/mmocr-dev-1.x/mmocr/datasets/__init__.py b/mmocr-dev-1.x/mmocr/datasets/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..54a9ea7f02824c517d2529ce3ae0ff4a607ca70f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/__init__.py
@@ -0,0 +1,14 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .dataset_wrapper import ConcatDataset
+from .icdar_dataset import IcdarDataset
+from .ocr_dataset import OCRDataset
+from .recog_lmdb_dataset import RecogLMDBDataset
+from .recog_text_dataset import RecogTextDataset
+from .samplers import *  # NOQA
+from .transforms import *  # NOQA
+from .wildreceipt_dataset import WildReceiptDataset
+
+__all__ = [
+    'IcdarDataset', 'OCRDataset', 'RecogLMDBDataset', 'RecogTextDataset',
+    'WildReceiptDataset', 'ConcatDataset'
+]
diff --git a/mmocr-dev-1.x/mmocr/datasets/dataset_wrapper.py b/mmocr-dev-1.x/mmocr/datasets/dataset_wrapper.py
new file mode 100644
index 0000000000000000000000000000000000000000..c1b8bc5cfe9836e18d5166bfb53ee86799e02cf1
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/dataset_wrapper.py
@@ -0,0 +1,77 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Callable, List, Sequence, Union
+
+from mmengine.dataset import BaseDataset, Compose
+from mmengine.dataset import ConcatDataset as MMENGINE_CONCATDATASET
+
+from mmocr.registry import DATASETS
+
+
+@DATASETS.register_module()
+class ConcatDataset(MMENGINE_CONCATDATASET):
+    """A wrapper of concatenated dataset.
+
+    Same as ``torch.utils.data.dataset.ConcatDataset`` and support lazy_init.
+
+    Note:
+        ``ConcatDataset`` should not inherit from ``BaseDataset`` since
+        ``get_subset`` and ``get_subset_`` could produce ambiguous meaning
+        sub-dataset which conflicts with original dataset. If you want to use
+        a sub-dataset of ``ConcatDataset``, you should set ``indices``
+        arguments for wrapped dataset which inherit from ``BaseDataset``.
+
+    Args:
+        datasets (Sequence[BaseDataset] or Sequence[dict]): A list of datasets
+            which will be concatenated.
+        pipeline (list, optional): Processing pipeline to be applied to all
+            of the concatenated datasets. Defaults to [].
+        verify_meta (bool): Whether to verify the consistency of meta
+            information of the concatenated datasets. Defaults to True.
+        force_apply (bool): Whether to force apply pipeline to all datasets if
+            any of them already has the pipeline configured. Defaults to False.
+        lazy_init (bool, optional): Whether to load annotation during
+            instantiation. Defaults to False.
+    """
+
+    def __init__(self,
+                 datasets: Sequence[Union[BaseDataset, dict]],
+                 pipeline: List[Union[dict, Callable]] = [],
+                 verify_meta: bool = True,
+                 force_apply: bool = False,
+                 lazy_init: bool = False):
+        self.datasets: List[BaseDataset] = []
+
+        # Compose dataset
+        pipeline = Compose(pipeline)
+
+        for i, dataset in enumerate(datasets):
+            if isinstance(dataset, dict):
+                self.datasets.append(DATASETS.build(dataset))
+            elif isinstance(dataset, BaseDataset):
+                self.datasets.append(dataset)
+            else:
+                raise TypeError(
+                    'elements in datasets sequence should be config or '
+                    f'`BaseDataset` instance, but got {type(dataset)}')
+            if len(pipeline.transforms) > 0:
+                if len(self.datasets[-1].pipeline.transforms
+                       ) > 0 and not force_apply:
+                    raise ValueError(
+                        f'The pipeline of dataset {i} is not empty, '
+                        'please set `force_apply` to True.')
+                self.datasets[-1].pipeline = pipeline
+
+        self._metainfo = self.datasets[0].metainfo
+
+        if verify_meta:
+            # Only use metainfo of first dataset.
+            for i, dataset in enumerate(self.datasets, 1):
+                if self._metainfo != dataset.metainfo:
+                    raise ValueError(
+                        f'The meta information of the {i}-th dataset does not '
+                        'match meta information of the first dataset')
+
+        self._fully_initialized = False
+        if not lazy_init:
+            self.full_init()
+            self._metainfo.update(dict(cumulative_sizes=self.cumulative_sizes))
diff --git a/mmocr-dev-1.x/mmocr/datasets/icdar_dataset.py b/mmocr-dev-1.x/mmocr/datasets/icdar_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..68fd911adf5dac4ca5c97421260cd12962fb3428
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/icdar_dataset.py
@@ -0,0 +1,93 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List, Union
+
+from mmdet.datasets.coco import CocoDataset
+
+from mmocr.registry import DATASETS
+
+
+@DATASETS.register_module()
+class IcdarDataset(CocoDataset):
+    """Dataset for text detection while ann_file in coco format.
+
+    Args:
+        ann_file (str): Annotation file path. Defaults to ''.
+        metainfo (dict, optional): Meta information for dataset, such as class
+            information. Defaults to None.
+        data_root (str): The root directory for ``data_prefix`` and
+            ``ann_file``. Defaults to ''.
+        data_prefix (dict): Prefix for training data. Defaults to
+            dict(img_path='').
+        filter_cfg (dict, optional): Config for filter data. Defaults to None.
+        indices (int or Sequence[int], optional): Support using first few
+            data in annotation file to facilitate training/testing on a smaller
+            dataset. Defaults to None which means using all ``data_infos``.
+        serialize_data (bool, optional): Whether to hold memory using
+            serialized objects, when enabled, data loader workers can use
+            shared RAM from master process instead of making a copy. Defaults
+            to True.
+        pipeline (list, optional): Processing pipeline. Defaults to [].
+        test_mode (bool, optional): ``test_mode=True`` means in test phase.
+            Defaults to False.
+        lazy_init (bool, optional): Whether to load annotation during
+            instantiation. In some cases, such as visualization, only the meta
+            information of the dataset is needed, which is not necessary to
+            load annotation file. ``Basedataset`` can skip load annotations to
+            save time by set ``lazy_init=False``. Defaults to False.
+        max_refetch (int, optional): If ``Basedataset.prepare_data`` get a
+            None img. The maximum extra number of cycles to get a valid
+            image. Defaults to 1000.
+    """
+    METAINFO = {'classes': ('text', )}
+
+    def parse_data_info(self, raw_data_info: dict) -> Union[dict, List[dict]]:
+        """Parse raw annotation to target format.
+
+        Args:
+            raw_data_info (dict): Raw data information loaded from ``ann_file``
+
+        Returns:
+            Union[dict, List[dict]]: Parsed annotation.
+        """
+        img_info = raw_data_info['raw_img_info']
+        ann_info = raw_data_info['raw_ann_info']
+
+        data_info = {}
+
+        img_path = osp.join(self.data_prefix['img_path'],
+                            img_info['file_name'])
+        data_info['img_path'] = img_path
+        data_info['img_id'] = img_info['img_id']
+        data_info['height'] = img_info['height']
+        data_info['width'] = img_info['width']
+
+        instances = []
+        for ann in ann_info:
+            instance = {}
+
+            if ann.get('ignore', False):
+                continue
+            x1, y1, w, h = ann['bbox']
+            inter_w = max(0, min(x1 + w, img_info['width']) - max(x1, 0))
+            inter_h = max(0, min(y1 + h, img_info['height']) - max(y1, 0))
+            if inter_w * inter_h == 0:
+                continue
+            if ann['area'] <= 0 or w < 1 or h < 1:
+                continue
+            if ann['category_id'] not in self.cat_ids:
+                continue
+            bbox = [x1, y1, x1 + w, y1 + h]
+
+            if ann.get('iscrowd', False):
+                instance['ignore'] = 1
+            else:
+                instance['ignore'] = 0
+            instance['bbox'] = bbox
+            instance['bbox_label'] = self.cat2label[ann['category_id']]
+            if ann.get('segmentation', None):
+                instance['polygon'] = ann['segmentation'][0]
+
+            instances.append(instance)
+        data_info['instances'] = instances
+        return data_info
diff --git a/mmocr-dev-1.x/mmocr/datasets/ocr_dataset.py b/mmocr-dev-1.x/mmocr/datasets/ocr_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..826c3fe9892daa41bf24eaa565a4b11c8d3bc9d6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/ocr_dataset.py
@@ -0,0 +1,94 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmengine.dataset import BaseDataset
+
+from mmocr.registry import DATASETS
+
+
+@DATASETS.register_module()
+class OCRDataset(BaseDataset):
+    r"""OCRDataset for text detection and text recognition.
+
+    The annotation format is shown as follows.
+
+    .. code-block:: none
+
+        {
+            "metainfo":
+            {
+              "dataset_type": "test_dataset",
+              "task_name": "test_task"
+            },
+            "data_list":
+            [
+              {
+                "img_path": "test_img.jpg",
+                "height": 604,
+                "width": 640,
+                "instances":
+                [
+                  {
+                    "bbox": [0, 0, 10, 20],
+                    "bbox_label": 1,
+                    "mask": [0,0,0,10,10,20,20,0],
+                    "text": '123'
+                  },
+                  {
+                    "bbox": [10, 10, 110, 120],
+                    "bbox_label": 2,
+                    "mask": [10,10],10,110,110,120,120,10]],
+                    "extra_anns": '456'
+                  }
+                ]
+              },
+            ]
+        }
+
+    Args:
+        ann_file (str): Annotation file path. Defaults to ''.
+        metainfo (dict, optional): Meta information for dataset, such as class
+            information. Defaults to None.
+        data_root (str, optional): The root directory for ``data_prefix`` and
+            ``ann_file``. Defaults to None.
+        data_prefix (dict): Prefix for training data. Defaults to
+            dict(img_path='').
+        filter_cfg (dict, optional): Config for filter data. Defaults to None.
+        indices (int or Sequence[int], optional): Support using first few
+            data in annotation file to facilitate training/testing on a smaller
+            dataset. Defaults to None which means using all ``data_infos``.
+        serialize_data (bool, optional): Whether to hold memory using
+            serialized objects, when enabled, data loader workers can use
+            shared RAM from master process instead of making a copy. Defaults
+            to True.
+        pipeline (list, optional): Processing pipeline. Defaults to [].
+        test_mode (bool, optional): ``test_mode=True`` means in test phase.
+            Defaults to False.
+        lazy_init (bool, optional): Whether to load annotation during
+            instantiation. In some cases, such as visualization, only the meta
+            information of the dataset is needed, which is not necessary to
+            load annotation file. ``OCRdataset`` can skip load annotations to
+            save time by set ``lazy_init=False``. Defaults to False.
+        max_refetch (int, optional): If ``OCRdataset.prepare_data`` get a
+            None img. The maximum extra number of cycles to get a valid
+            image. Defaults to 1000.
+
+    Note:
+        OCRDataset collects meta information from `annotation file` (the
+        lowest priority), ``OCRDataset.METAINFO``(medium) and `metainfo
+        parameter` (highest) passed to constructors. The lower priority meta
+        information will be overwritten by higher one.
+
+    Examples:
+        Assume the annotation file is given above.
+        >>> class CustomDataset(OCRDataset):
+        >>>     METAINFO: dict = dict(task_name='custom_task',
+        >>>                           dataset_type='custom_type')
+        >>> metainfo=dict(task_name='custom_task_name')
+        >>> custom_dataset = CustomDataset(
+        >>>                      'path/to/ann_file',
+        >>>                      metainfo=metainfo)
+        >>> # meta information of annotation file will be overwritten by
+        >>> # `CustomDataset.METAINFO`. The merged meta information will
+        >>> # further be overwritten by argument `metainfo`.
+        >>> custom_dataset.metainfo
+        {'task_name': custom_task_name, dataset_type: custom_type}
+    """
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/__init__.py b/mmocr-dev-1.x/mmocr/datasets/preparers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e2323e3273d988c4e26443567a77dbd328e4f329
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/__init__.py
@@ -0,0 +1,10 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .config_generators import *  # noqa
+from .data_preparer import DatasetPreparer
+from .dumpers import *  # noqa
+from .gatherers import *  # noqa
+from .obtainers import *  # noqa
+from .packers import *  # noqa
+from .parsers import *  # noqa
+
+__all__ = ['DatasetPreparer']
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/__init__.py b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..8e884c6d9d4cbd71e2e7c9625a87a7993839b75e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/__init__.py
@@ -0,0 +1,10 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .base import BaseDatasetConfigGenerator
+from .textdet_config_generator import TextDetConfigGenerator
+from .textrecog_config_generator import TextRecogConfigGenerator
+from .textspotting_config_generator import TextSpottingConfigGenerator
+
+__all__ = [
+    'BaseDatasetConfigGenerator', 'TextDetConfigGenerator',
+    'TextRecogConfigGenerator', 'TextSpottingConfigGenerator'
+]
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/base.py b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..ba3811a425f203d2e5a810dc6e57a0934fb13a93
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/base.py
@@ -0,0 +1,131 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from abc import abstractmethod
+from typing import Dict, List, Optional
+
+from mmengine import mkdir_or_exist
+
+
+class BaseDatasetConfigGenerator:
+    """Base class for dataset config generator.
+
+    Args:
+        data_root (str): The root path of the dataset.
+        task (str): The task of the dataset.
+        dataset_name (str): The name of the dataset.
+        overwrite_cfg (bool): Whether to overwrite the dataset config file if
+            it already exists. If False, config generator will not generate new
+            config for datasets whose configs are already in base.
+        train_anns (List[Dict], optional): A list of train annotation files
+            to appear in the base configs. Defaults to None.
+            Each element is typically a dict with the following fields:
+            - ann_file (str): The path to the annotation file relative to
+              data_root.
+            - dataset_postfix (str, optional): Affects the postfix of the
+              resulting variable in the generated config. If specified, the
+              dataset variable will be named in the form of
+              ``{dataset_name}_{dataset_postfix}_{task}_{split}``. Defaults to
+              None.
+        val_anns (List[Dict], optional): A list of val annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to None.
+        test_anns (List[Dict], optional): A list of test annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to None.
+        config_path (str): Path to the configs. Defaults to 'configs/'.
+    """
+
+    def __init__(
+        self,
+        data_root: str,
+        task: str,
+        dataset_name: str,
+        overwrite_cfg: bool = False,
+        train_anns: Optional[List[Dict]] = None,
+        val_anns: Optional[List[Dict]] = None,
+        test_anns: Optional[List[Dict]] = None,
+        config_path: str = 'configs/',
+    ) -> None:
+        self.config_path = config_path
+        self.data_root = data_root
+        self.task = task
+        self.dataset_name = dataset_name
+        self.overwrite_cfg = overwrite_cfg
+        self._prepare_anns(train_anns, val_anns, test_anns)
+
+    def _prepare_anns(self, train_anns: Optional[List[Dict]],
+                      val_anns: Optional[List[Dict]],
+                      test_anns: Optional[List[Dict]]) -> None:
+        """Preprocess input arguments and stores these information into
+        ``self.anns``.
+
+        ``self.anns`` is a dict that maps the name of a dataset config variable
+        to a dict, which contains the following fields:
+        - ann_file (str): The path to the annotation file relative to
+          data_root.
+        - split (str): The split the annotation belongs to. Usually
+          it can be 'train', 'val' and 'test'.
+        - dataset_postfix (str, optional): Affects the postfix of the
+          resulting variable in the generated config. If specified, the
+          dataset variable will be named in the form of
+          ``{dataset_name}_{dataset_postfix}_{task}_{split}``. Defaults to
+          None.
+        """
+        self.anns = {}
+        for split, ann_list in zip(('train', 'val', 'test'),
+                                   (train_anns, val_anns, test_anns)):
+            if ann_list is None:
+                continue
+            if not isinstance(ann_list, list):
+                raise ValueError(f'{split}_anns must be either a list or'
+                                 ' None!')
+            for ann_dict in ann_list:
+                assert 'ann_file' in ann_dict
+                suffix = ann_dict['ann_file'].split('.')[-1]
+                if suffix == 'json':
+                    dataset_type = 'OCRDataset'
+                elif suffix == 'lmdb':
+                    assert self.task == 'textrecog', \
+                        'LMDB format only works for textrecog now.'
+                    dataset_type = 'RecogLMDBDataset'
+                else:
+                    raise NotImplementedError(
+                        'ann file only supports JSON file or LMDB file')
+                ann_dict['dataset_type'] = dataset_type
+                if ann_dict.get('dataset_postfix', ''):
+                    key = f'{self.dataset_name}_{ann_dict["dataset_postfix"]}_{self.task}_{split}'  # noqa
+                else:
+                    key = f'{self.dataset_name}_{self.task}_{split}'
+                ann_dict['split'] = split
+                if key in self.anns:
+                    raise ValueError(
+                        f'Duplicate dataset variable {key} found! '
+                        'Please use different dataset_postfix to avoid '
+                        'conflict.')
+                self.anns[key] = ann_dict
+
+    def __call__(self) -> None:
+        """Generates the base dataset config."""
+
+        dataset_config = self._gen_dataset_config()
+
+        cfg_path = osp.join(self.config_path, self.task, '_base_', 'datasets',
+                            f'{self.dataset_name}.py')
+        if osp.exists(cfg_path) and not self.overwrite_cfg:
+            print(f'{cfg_path} found, skipping.')
+            return
+        mkdir_or_exist(osp.dirname(cfg_path))
+        with open(cfg_path, 'w') as f:
+            f.write(
+                f'{self.dataset_name}_{self.task}_data_root = \'{self.data_root}\'\n'  # noqa: E501
+            )
+            f.write(dataset_config)
+
+    @abstractmethod
+    def _gen_dataset_config(self) -> str:
+        """Generate a full dataset config based on the annotation file
+        dictionary.
+
+        Returns:
+            str: The generated dataset config.
+        """
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textdet_config_generator.py b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textdet_config_generator.py
new file mode 100644
index 0000000000000000000000000000000000000000..fcb8af4fb0e0fc031e81acf51ebe9526c0192439
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textdet_config_generator.py
@@ -0,0 +1,96 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional
+
+from mmocr.registry import CFG_GENERATORS
+from .base import BaseDatasetConfigGenerator
+
+
+@CFG_GENERATORS.register_module()
+class TextDetConfigGenerator(BaseDatasetConfigGenerator):
+    """Text detection config generator.
+
+    Args:
+        data_root (str): The root path of the dataset.
+        dataset_name (str): The name of the dataset.
+        overwrite_cfg (bool): Whether to overwrite the dataset config file if
+            it already exists. If False, config generator will not generate new
+            config for datasets whose configs are already in base.
+        train_anns (List[Dict], optional): A list of train annotation files
+            to appear in the base configs. Defaults to
+            ``[dict(file='textdet_train.json', dataset_postfix='')]``.
+            Each element is typically a dict with the following fields:
+            - ann_file (str): The path to the annotation file relative to
+              data_root.
+            - dataset_postfix (str, optional): Affects the postfix of the
+              resulting variable in the generated config. If specified, the
+              dataset variable will be named in the form of
+              ``{dataset_name}_{dataset_postfix}_{task}_{split}``. Defaults to
+              None.
+        val_anns (List[Dict], optional): A list of val annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to [].
+        test_anns (List[Dict], optional): A list of test annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to ``[dict(file='textdet_test.json')]``.
+        config_path (str): Path to the configs. Defaults to 'configs/'.
+    """
+
+    def __init__(
+        self,
+        data_root: str,
+        dataset_name: str,
+        overwrite_cfg: bool = False,
+        train_anns: Optional[List[Dict]] = [
+            dict(ann_file='textdet_train.json', dataset_postfix='')
+        ],
+        val_anns: Optional[List[Dict]] = [],
+        test_anns: Optional[List[Dict]] = [
+            dict(ann_file='textdet_test.json', dataset_postfix='')
+        ],
+        config_path: str = 'configs/',
+    ) -> None:
+        super().__init__(
+            data_root=data_root,
+            task='textdet',
+            overwrite_cfg=overwrite_cfg,
+            dataset_name=dataset_name,
+            train_anns=train_anns,
+            val_anns=val_anns,
+            test_anns=test_anns,
+            config_path=config_path,
+        )
+
+    def _gen_dataset_config(self) -> str:
+        """Generate a full dataset config based on the annotation file
+        dictionary.
+
+        Args:
+            ann_dict (dict[str, dict(str, str)]): A nested dictionary that maps
+                a config variable name (such as icdar2015_textrecog_train) to
+                its corresponding annotation information dict. Each dict
+                contains following keys:
+                - ann_file (str): The path to the annotation file relative to
+                  data_root.
+                - dataset_postfix (str, optional): Affects the postfix of the
+                  resulting variable in the generated config. If specified, the
+                  dataset variable will be named in the form of
+                  ``{dataset_name}_{dataset_postfix}_{task}_{split}``. Defaults
+                  to None.
+                - split (str): The split the annotation belongs to. Usually
+                  it can be 'train', 'val' and 'test'.
+
+        Returns:
+            str: The generated dataset config.
+        """
+        cfg = ''
+        for key_name, ann_dict in self.anns.items():
+            cfg += f'\n{key_name} = dict(\n'
+            cfg += '    type=\'OCRDataset\',\n'
+            cfg += '    data_root=' + f'{self.dataset_name}_{self.task}_data_root,\n'  # noqa: E501
+            cfg += f'    ann_file=\'{ann_dict["ann_file"]}\',\n'
+            if ann_dict['split'] == 'train':
+                cfg += '    filter_cfg=dict(filter_empty_gt=True, min_size=32),\n'  # noqa: E501
+            elif ann_dict['split'] in ['test', 'val']:
+                cfg += '    test_mode=True,\n'
+            cfg += '    pipeline=None)\n'
+        return cfg
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textrecog_config_generator.py b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textrecog_config_generator.py
new file mode 100644
index 0000000000000000000000000000000000000000..bb8b62625884e0d135fbcf4c61abe8162b9f7df5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textrecog_config_generator.py
@@ -0,0 +1,128 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional
+
+from mmocr.registry import CFG_GENERATORS
+from .base import BaseDatasetConfigGenerator
+
+
+@CFG_GENERATORS.register_module()
+class TextRecogConfigGenerator(BaseDatasetConfigGenerator):
+    """Text recognition config generator.
+
+    Args:
+        data_root (str): The root path of the dataset.
+        dataset_name (str): The name of the dataset.
+        overwrite_cfg (bool): Whether to overwrite the dataset config file if
+            it already exists. If False, config generator will not generate new
+            config for datasets whose configs are already in base.
+        train_anns (List[Dict], optional): A list of train annotation files
+            to appear in the base configs. Defaults to
+            ``[dict(file='textrecog_train.json'), dataset_postfix='']``.
+            Each element is typically a dict with the following fields:
+            - ann_file (str): The path to the annotation file relative to
+              data_root.
+            - dataset_postfix (str, optional): Affects the postfix of the
+              resulting variable in the generated config. If specified, the
+              dataset variable will be named in the form of
+              ``{dataset_name}_{dataset_postfix}_{task}_{split}``. Defaults to
+              None.
+        val_anns (List[Dict], optional): A list of val annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to [].
+        test_anns (List[Dict], optional): A list of test annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to ``[dict(file='textrecog_test.json')]``.
+        config_path (str): Path to the configs. Defaults to 'configs/'.
+
+    Example:
+        It generates a dataset config like:
+        >>> icdar2015_textrecog_data_root = 'data/icdar2015/'
+        >>> icdar2015_textrecog_train = dict(
+        >>>     type='OCRDataset',
+        >>>     data_root=icdar2015_textrecog_data_root,
+        >>>     ann_file='textrecog_train.json',
+        >>>     pipeline=None)
+        >>> icdar2015_textrecog_test = dict(
+        >>>     type='OCRDataset',
+        >>>     data_root=icdar2015_textrecog_data_root,
+        >>>     ann_file='textrecog_test.json',
+        >>>     test_mode=True,
+        >>>     pipeline=None)
+
+        It generates a lmdb format dataset config like:
+        >>> icdar2015_lmdb_textrecog_data_root = 'data/icdar2015'
+        >>> icdar2015_lmdb_textrecog_train = dict(
+        >>>     type='RecogLMDBDataset',
+        >>>     data_root=icdar2015_lmdb_textrecog_data_root,
+        >>>     ann_file='textrecog_train.lmdb',
+        >>>     pipeline=None)
+        >>> icdar2015_lmdb_textrecog_test = dict(
+        >>>     type='RecogLMDBDataset',
+        >>>     data_root=icdar2015_lmdb_textrecog_data_root,
+        >>>     ann_file='textrecog_test.lmdb',
+        >>>     test_mode=True,
+        >>>     pipeline=None)
+        >>> icdar2015_lmdb_1811_textrecog_test = dict(
+        >>>     type='RecogLMDBDataset',
+        >>>     data_root=icdar2015_lmdb_textrecog_data_root,
+        >>>     ann_file='textrecog_test_1811.lmdb',
+        >>>     test_mode=True,
+        >>>     pipeline=None)
+    """
+
+    def __init__(
+        self,
+        data_root: str,
+        dataset_name: str,
+        overwrite_cfg: bool = False,
+        train_anns: Optional[List[Dict]] = [
+            dict(ann_file='textrecog_train.json', dataset_postfix='')
+        ],
+        val_anns: Optional[List[Dict]] = [],
+        test_anns: Optional[List[Dict]] = [
+            dict(ann_file='textrecog_test.json', dataset_postfix='')
+        ],
+        config_path: str = 'configs/',
+    ) -> None:
+        super().__init__(
+            data_root=data_root,
+            task='textrecog',
+            overwrite_cfg=overwrite_cfg,
+            dataset_name=dataset_name,
+            train_anns=train_anns,
+            val_anns=val_anns,
+            test_anns=test_anns,
+            config_path=config_path)
+
+    def _gen_dataset_config(self) -> str:
+        """Generate a full dataset config based on the annotation file
+        dictionary.
+
+        Args:
+            ann_dict (dict[str, dict(str, str)]): A nested dictionary that maps
+                a config variable name (such as icdar2015_textrecog_train) to
+                its corresponding annotation information dict. Each dict
+                contains following keys:
+                - ann_file (str): The path to the annotation file relative to
+                  data_root.
+                - dataset_postfix (str, optional): Affects the postfix of the
+                  resulting variable in the generated config. If specified, the
+                  dataset variable will be named in the form of
+                  ``{dataset_name}_{dataset_postfix}_{task}_{split}``. Defaults
+                  to None.
+                - split (str): The split the annotation belongs to. Usually
+                  it can be 'train', 'val' and 'test'.
+
+        Returns:
+            str: The generated dataset config.
+        """
+        cfg = ''
+        for key_name, ann_dict in self.anns.items():
+            cfg += f'\n{key_name} = dict(\n'
+            cfg += f'    type=\'{ann_dict["dataset_type"]}\',\n'
+            cfg += f'    data_root={self.dataset_name}_{self.task}_data_root,\n'  # noqa: E501
+            cfg += f'    ann_file=\'{ann_dict["ann_file"]}\',\n'
+            if ann_dict['split'] in ['test', 'val']:
+                cfg += '    test_mode=True,\n'
+            cfg += '    pipeline=None)\n'
+        return cfg
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textspotting_config_generator.py b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textspotting_config_generator.py
new file mode 100644
index 0000000000000000000000000000000000000000..b4c1db7b642d6b1fd56354a87508baf09dede64f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/config_generators/textspotting_config_generator.py
@@ -0,0 +1,63 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional
+
+from mmocr.registry import CFG_GENERATORS
+from .base import BaseDatasetConfigGenerator
+from .textdet_config_generator import TextDetConfigGenerator
+
+
+@CFG_GENERATORS.register_module()
+class TextSpottingConfigGenerator(TextDetConfigGenerator):
+    """Text spotting config generator.
+
+    Args:
+        data_root (str): The root path of the dataset.
+        dataset_name (str): The name of the dataset.
+        overwrite_cfg (bool): Whether to overwrite the dataset config file if
+            it already exists. If False, config generator will not generate new
+            config for datasets whose configs are already in base.
+        train_anns (List[Dict], optional): A list of train annotation files
+            to appear in the base configs. Defaults to
+            ``[dict(file='textspotting_train.json', dataset_postfix='')]``.
+            Each element is typically a dict with the following fields:
+            - ann_file (str): The path to the annotation file relative to
+              data_root.
+            - dataset_postfix (str, optional): Affects the postfix of the
+              resulting variable in the generated config. If specified, the
+              dataset variable will be named in the form of
+              ``{dataset_name}_{dataset_postfix}_{task}_{split}``. Defaults to
+              None.
+        val_anns (List[Dict], optional): A list of val annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to [].
+        test_anns (List[Dict], optional): A list of test annotation files
+            to appear in the base configs, similar to ``train_anns``. Defaults
+            to ``[dict(file='textspotting_test.json')]``.
+        config_path (str): Path to the configs. Defaults to 'configs/'.
+    """
+
+    def __init__(
+        self,
+        data_root: str,
+        dataset_name: str,
+        overwrite_cfg: bool = False,
+        train_anns: Optional[List[Dict]] = [
+            dict(ann_file='textspotting_train.json', dataset_postfix='')
+        ],
+        val_anns: Optional[List[Dict]] = [],
+        test_anns: Optional[List[Dict]] = [
+            dict(ann_file='textspotting_test.json', dataset_postfix='')
+        ],
+        config_path: str = 'configs/',
+    ) -> None:
+        BaseDatasetConfigGenerator.__init__(
+            self,
+            data_root=data_root,
+            task='textspotting',
+            overwrite_cfg=overwrite_cfg,
+            dataset_name=dataset_name,
+            train_anns=train_anns,
+            val_anns=val_anns,
+            test_anns=test_anns,
+            config_path=config_path,
+        )
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/data_preparer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/data_preparer.py
new file mode 100644
index 0000000000000000000000000000000000000000..7e64856254194d91ac03e2c43aaa5161151b0564
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/data_preparer.py
@@ -0,0 +1,200 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import os
+import os.path as osp
+import shutil
+from typing import List, Optional, Union
+
+from mmocr.registry import (CFG_GENERATORS, DATA_DUMPERS, DATA_GATHERERS,
+                            DATA_OBTAINERS, DATA_PACKERS, DATA_PARSERS)
+from mmocr.utils.typing_utils import ConfigType, OptConfigType
+
+
+class DatasetPreparer:
+    """Base class of dataset preparer.
+
+    Dataset preparer is used to prepare dataset for MMOCR. It mainly consists
+    of three steps:
+      1. For each split:
+        - Obtain the dataset
+            - Download
+            - Extract
+            - Move/Rename
+        - Gather the dataset
+        - Parse the dataset
+        - Pack the dataset to MMOCR format
+        - Dump the dataset
+      2. Delete useless files
+      3. Generate the base config for this dataset
+
+    After all these steps, the original datasets have been prepared for
+    usage in MMOCR. Check out the dataset format used in MMOCR here:
+    https://mmocr.readthedocs.io/en/dev-1.x/user_guides/dataset_prepare.html
+
+    Args:
+        data_root (str): Root directory of data.
+        dataset_name (str): Dataset name.
+        task (str): Task type. Options are 'textdet', 'textrecog',
+            'textspotter', and 'kie'. Defaults to 'textdet'.
+        nproc (int): Number of parallel processes. Defaults to 4.
+        train_preparer (OptConfigType): cfg for train data prepare. It contains
+            the following keys:
+            - obtainer: cfg for data obtainer.
+            - gatherer: cfg for data gatherer.
+            - parser: cfg for data parser.
+            - packer: cfg for data packer.
+            - dumper: cfg for data dumper.
+            Defaults to None.
+        test_preparer (OptConfigType): cfg for test data prepare. Defaults to
+            None.
+        val_preparer (OptConfigType): cfg for val data prepare. Defaults to
+            None.
+        config_generator (OptConfigType): cfg for config generator. Defaults to
+            None.
+        delete (list[str], optional): List of files to be deleted.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 data_root: str,
+                 dataset_name: str = '',
+                 task: str = 'textdet',
+                 nproc: int = 4,
+                 train_preparer: OptConfigType = None,
+                 test_preparer: OptConfigType = None,
+                 val_preparer: OptConfigType = None,
+                 config_generator: OptConfigType = None,
+                 delete: Optional[List[str]] = None) -> None:
+        self.data_root = data_root
+        self.nproc = nproc
+        self.task = task
+        self.dataset_name = dataset_name
+        self.train_preparer = train_preparer
+        self.test_preparer = test_preparer
+        self.val_preparer = val_preparer
+        self.config_generator = config_generator
+        self.delete = delete
+
+    def run(self, splits: Union[str, List] = ['train', 'test', 'val']) -> None:
+        """Prepare the dataset."""
+        if isinstance(splits, str):
+            splits = [splits]
+        assert set(splits).issubset(set(['train', 'test',
+                                         'val'])), 'Invalid split name'
+        for split in splits:
+            self.loop(split, getattr(self, f'{split}_preparer'))
+        self.clean()
+        self.generate_config()
+
+    @classmethod
+    def from_file(cls, cfg: ConfigType) -> 'DatasetPreparer':
+        """Create a DataPreparer from config file.
+
+        Args:
+            cfg (ConfigType): A config used for building runner. Keys of
+                ``cfg`` can see :meth:`__init__`.
+
+        Returns:
+            Runner: A DatasetPreparer build from ``cfg``.
+        """
+
+        cfg = copy.deepcopy(cfg)
+        data_preparer = cls(
+            data_root=cfg['data_root'],
+            dataset_name=cfg.get('dataset_name', ''),
+            task=cfg.get('task', 'textdet'),
+            nproc=cfg.get('nproc', 4),
+            train_preparer=cfg.get('train_preparer', None),
+            test_preparer=cfg.get('test_preparer', None),
+            val_preparer=cfg.get('val_preparer', None),
+            delete=cfg.get('delete', None),
+            config_generator=cfg.get('config_generator', None))
+        return data_preparer
+
+    def loop(self, split: str, cfg: ConfigType) -> None:
+        """Loop over the dataset.
+
+        Args:
+            split (str): The split of the dataset.
+            cfg (ConfigType): A config used for building obtainer, gatherer,
+                parser, packer and dumper.
+        """
+        if cfg is None:
+            return
+
+        # build obtainer and run
+        obtainer = cfg.get('obtainer', None)
+        if obtainer:
+            print(f'Obtaining {split} Dataset...')
+            obtainer.setdefault('task', default=self.task)
+            obtainer.setdefault('data_root', default=self.data_root)
+            obtainer = DATA_OBTAINERS.build(obtainer)
+            obtainer()
+
+        # build gatherer
+        gatherer = cfg.get('gatherer', None)
+        parser = cfg.get('parser', None)
+        packer = cfg.get('packer', None)
+        dumper = cfg.get('dumper', None)
+        related = [gatherer, parser, packer, dumper]
+        if all(item is None for item in related):  # no data process
+            return
+        if not all(item is not None for item in related):
+            raise ValueError('gatherer, parser, packer and dumper should be '
+                             'either all None or not None')
+
+        print(f'Gathering {split} Dataset...')
+        gatherer.setdefault('split', default=split)
+        gatherer.setdefault('data_root', default=self.data_root)
+        gatherer.setdefault('ann_dir', default='annotations')
+        gatherer.setdefault(
+            'img_dir', default=osp.join(f'{self.task}_imgs', split))
+
+        gatherer = DATA_GATHERERS.build(gatherer)
+        img_paths, ann_paths = gatherer()
+
+        # build parser
+        print(f'Parsing {split} Images and Annotations...')
+        parser.setdefault('split', default=split)
+        parser.setdefault('nproc', default=self.nproc)
+        parser = DATA_PARSERS.build(parser)
+        # Convert dataset annotations to MMOCR format
+        samples = parser(img_paths, ann_paths)
+
+        # build packer
+        print(f'Packing {split} Annotations...')
+        packer.setdefault('split', default=split)
+        packer.setdefault('nproc', default=self.nproc)
+        packer.setdefault('data_root', default=self.data_root)
+        packer = DATA_PACKERS.build(packer)
+        samples = packer(samples)
+
+        # build dumper
+        print(f'Dumping {split} Annotations...')
+        # Dump annotation files
+        dumper.setdefault('task', default=self.task)
+        dumper.setdefault('split', default=split)
+        dumper.setdefault('data_root', default=self.data_root)
+        dumper = DATA_DUMPERS.build(dumper)
+        dumper(samples)
+
+    def generate_config(self):
+        if self.config_generator is None:
+            return
+        self.config_generator.setdefault(
+            'dataset_name', default=self.dataset_name)
+        self.config_generator.setdefault('data_root', default=self.data_root)
+        config_generator = CFG_GENERATORS.build(self.config_generator)
+        print('Generating base configs...')
+        config_generator()
+
+    def clean(self) -> None:
+        if self.delete is None:
+            return
+        for d in self.delete:
+            delete_file = osp.join(self.data_root, d)
+            if osp.exists(delete_file):
+                if osp.isdir(delete_file):
+                    shutil.rmtree(delete_file)
+                else:
+                    os.remove(delete_file)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/__init__.py b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed3dda486b568ea5b4c7f48100b2c32c0b8ec987
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/__init__.py
@@ -0,0 +1,10 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .base import BaseDumper
+from .json_dumper import JsonDumper
+from .lmdb_dumper import TextRecogLMDBDumper
+from .wild_receipt_openset_dumper import WildreceiptOpensetDumper
+
+__all__ = [
+    'BaseDumper', 'JsonDumper', 'WildreceiptOpensetDumper',
+    'TextRecogLMDBDumper'
+]
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/base.py b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..3b4416a8d9adb4352a4426e834ac87841fc12c9b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/base.py
@@ -0,0 +1,35 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Any
+
+
+class BaseDumper:
+    """Base class for data dumpers.
+
+    Args:
+        task (str): Task type. Options are 'textdet', 'textrecog',
+            'textspotter', and 'kie'. It is usually set automatically and users
+             do not need to set it manually in config file in most cases.
+        split (str): It' s the partition of the datasets. Options are 'train',
+            'val' or 'test'. It is usually set automatically and users do not
+            need to set it manually in config file in most cases. Defaults to
+            None.
+        data_root (str): The root directory of the image and
+            annotation. It is usually set automatically and users do not need
+            to set it manually in config file in most cases. Defaults to None.
+    """
+
+    def __init__(self, task: str, split: str, data_root: str) -> None:
+        self.task = task
+        self.split = split
+        self.data_root = data_root
+
+    def __call__(self, data: Any) -> None:
+        """Call function.
+
+        Args:
+            data (Any): Data to be dumped.
+        """
+        self.dump(data)
+
+    def dump(self, data: Any) -> None:
+        raise NotImplementedError
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/json_dumper.py b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/json_dumper.py
new file mode 100644
index 0000000000000000000000000000000000000000..e1c8ab026df3b03231e2edd6e9bf39de7cf27e38
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/json_dumper.py
@@ -0,0 +1,24 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Dict
+
+import mmengine
+
+from mmocr.registry import DATA_DUMPERS
+from .base import BaseDumper
+
+
+@DATA_DUMPERS.register_module()
+class JsonDumper(BaseDumper):
+    """Dumper for json file."""
+
+    def dump(self, data: Dict) -> None:
+        """Dump data to json file.
+
+        Args:
+            data (Dict): Data to be dumped.
+        """
+
+        filename = f'{self.task}_{self.split}.json'
+        dst_file = osp.join(self.data_root, filename)
+        mmengine.dump(data, dst_file)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/lmdb_dumper.py b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/lmdb_dumper.py
new file mode 100644
index 0000000000000000000000000000000000000000..9cd49d17ff17a8224e16284669e3d1206e0463ca
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/lmdb_dumper.py
@@ -0,0 +1,140 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import warnings
+from typing import Dict, List
+
+import cv2
+import lmdb
+import mmengine
+import numpy as np
+
+from mmocr.registry import DATA_DUMPERS
+from .base import BaseDumper
+
+
+@DATA_DUMPERS.register_module()
+class TextRecogLMDBDumper(BaseDumper):
+    """Text recognition LMDB format dataset dumper.
+
+    Args:
+        task (str): Task type. Options are 'textdet', 'textrecog',
+            'textspotter', and 'kie'. It is usually set automatically and users
+             do not need to set it manually in config file in most cases.
+        split (str): It' s the partition of the datasets. Options are 'train',
+            'val' or 'test'. It is usually set automatically and users do not
+            need to set it manually in config file in most cases. Defaults to
+            None.
+        data_root (str): The root directory of the image and
+            annotation. It is usually set automatically and users do not need
+            to set it manually in config file in most cases. Defaults to None.
+        batch_size (int): Number of files written to the cache each time.
+            Defaults to 1000.
+        encoding (str): Label encoding method. Defaults to 'utf-8'.
+        lmdb_map_size (int): Maximum size database may grow to. Defaults to
+            1099511627776.
+        verify (bool): Whether to check the validity of every image. Defaults
+            to True.
+    """
+
+    def __init__(self,
+                 task: str,
+                 split: str,
+                 data_root: str,
+                 batch_size: int = 1000,
+                 encoding: str = 'utf-8',
+                 lmdb_map_size: int = 1099511627776,
+                 verify: bool = True) -> None:
+        assert task == 'textrecog', \
+            f'TextRecogLMDBDumper only works with textrecog, but got {task}'
+        super().__init__(task=task, split=split, data_root=data_root)
+        self.batch_size = batch_size
+        self.encoding = encoding
+        self.lmdb_map_size = lmdb_map_size
+        self.verify = verify
+
+    def check_image_is_valid(self, imageBin):
+        if imageBin is None:
+            return False
+        imageBuf = np.frombuffer(imageBin, dtype=np.uint8)
+        img = cv2.imdecode(imageBuf, cv2.IMREAD_GRAYSCALE)
+        imgH, imgW = img.shape[0], img.shape[1]
+        if imgH * imgW == 0:
+            return False
+        return True
+
+    def write_cache(self, env, cache):
+        with env.begin(write=True) as txn:
+            cursor = txn.cursor()
+            cursor.putmulti(cache, dupdata=False, overwrite=True)
+
+    def parser_pack_instance(self, instance: Dict):
+        """parser an packed MMOCR format textrecog instance.
+        Args:
+            instance (Dict): An packed MMOCR format textrecog instance.
+                For example,
+                {
+                    "instance": [
+                        {
+                            "text": "Hello"
+                        }
+                    ],
+                    "img_path": "img1.jpg"
+                }
+        """
+        assert isinstance(instance,
+                          Dict), 'Element of data_list must be a dict'
+        assert 'img_path' in instance and 'instances' in instance, \
+            'Element of data_list must have the following keys: ' \
+            f'img_path and instances, but got {instance.keys()}'
+        assert isinstance(instance['instances'], List) and len(
+            instance['instances']) == 1
+        assert 'text' in instance['instances'][0]
+
+        img_path = instance['img_path']
+        text = instance['instances'][0]['text']
+        return img_path, text
+
+    def dump(self, data: Dict) -> None:
+        """Dump data to LMDB format."""
+
+        # create lmdb env
+        output_dirname = f'{self.task}_{self.split}.lmdb'
+        output = osp.join(self.data_root, output_dirname)
+        mmengine.mkdir_or_exist(output)
+        env = lmdb.open(output, map_size=self.lmdb_map_size)
+        # load data
+        if 'data_list' not in data:
+            raise ValueError('Dump data must have data_list key')
+        data_list = data['data_list']
+        cache = []
+        # index start from 1
+        cnt = 1
+        n_samples = len(data_list)
+        for d in data_list:
+            # convert both images and labels to lmdb
+            label_key = 'label-%09d'.encode(self.encoding) % cnt
+            img_name, text = self.parser_pack_instance(d)
+            img_path = osp.join(self.data_root, img_name)
+            if not osp.exists(img_path):
+                warnings.warn('%s does not exist' % img_path)
+                continue
+            with open(img_path, 'rb') as f:
+                image_bin = f.read()
+            if self.verify:
+                if not self.check_image_is_valid(image_bin):
+                    warnings.warn('%s is not a valid image' % img_path)
+                    continue
+            image_key = 'image-%09d'.encode(self.encoding) % cnt
+            cache.append((image_key, image_bin))
+            cache.append((label_key, text.encode(self.encoding)))
+
+            if cnt % self.batch_size == 0:
+                self.write_cache(env, cache)
+                cache = []
+                print('Written %d / %d' % (cnt, n_samples))
+            cnt += 1
+        n_samples = cnt - 1
+        cache.append(('num-samples'.encode(self.encoding),
+                      str(n_samples).encode(self.encoding)))
+        self.write_cache(env, cache)
+        print('Created lmdb dataset with %d samples' % n_samples)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/wild_receipt_openset_dumper.py b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/wild_receipt_openset_dumper.py
new file mode 100644
index 0000000000000000000000000000000000000000..df6a462c8e29b04a877698ca96c9739579484874
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/dumpers/wild_receipt_openset_dumper.py
@@ -0,0 +1,22 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List
+
+from mmocr.registry import DATA_DUMPERS
+from mmocr.utils import list_to_file
+from .base import BaseDumper
+
+
+@DATA_DUMPERS.register_module()
+class WildreceiptOpensetDumper(BaseDumper):
+
+    def dump(self, data: List):
+        """Dump data to txt file.
+
+        Args:
+            data (List): Data to be dumped.
+        """
+
+        filename = f'openset_{self.split}.txt'
+        dst_file = osp.join(self.data_root, filename)
+        list_to_file(dst_file, data)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/__init__.py b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..9a05c79754e6a6392c97b1e7937b725d2d9df752
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/__init__.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from .base import BaseGatherer
+from .mono_gatherer import MonoGatherer
+from .naf_gatherer import NAFGatherer
+from .pair_gatherer import PairGatherer
+
+__all__ = ['BaseGatherer', 'MonoGatherer', 'PairGatherer', 'NAFGatherer']
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/base.py b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..f982a1a5d62e5071646d621865e6e9fd1dad674f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/base.py
@@ -0,0 +1,49 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List, Optional, Tuple, Union
+
+
+class BaseGatherer:
+    """Base class for gatherer.
+
+    Note: Gatherer assumes that all the annotation file is in the same
+    directory and all the image files are in the same directory.
+
+    Args:
+        img_dir(str): The directory of the images. It is usually set
+            automatically to f'text{task}_imgs/split' and users do not need to
+            set it manually in config file in most cases. When the image files
+            is not in 'text{task}_imgs/split' directory, users should set it.
+            Defaults to ''.
+        ann_dir (str): The directory of the annotation files. It is usually set
+            automatically to 'annotations' and users do not need to set it
+            manually in config file in most cases. When the annotation files
+            is not in 'annotations' directory, users should set it. Defaults to
+            'annotations'.
+        split (str, optional): List of splits to gather. It' s the partition of
+            the datasets. Options are 'train', 'val' or 'test'. It is usually
+            set automatically and users do not need to set it manually in
+            config file in most cases. Defaults to None.
+        data_root (str, optional): The root directory of the image and
+            annotation. It is usually set automatically and users do not need
+            to set it manually in config file in most cases. Defaults to None.
+    """
+
+    def __init__(self,
+                 img_dir: str = '',
+                 ann_dir: str = 'annotations',
+                 split: Optional[str] = None,
+                 data_root: Optional[str] = None) -> None:
+        self.split = split
+        self.data_root = data_root
+        self.ann_dir = osp.join(data_root, ann_dir)
+        self.img_dir = osp.join(data_root, img_dir)
+
+    def __call__(self) -> Union[Tuple[List[str], List[str]], Tuple[str, str]]:
+        """The return value of the gatherer is a tuple of two lists or strings.
+
+        The first element is the list of image paths or the directory of the
+        images. The second element is the list of annotation paths or the path
+        of the annotation file which contains all the annotations.
+        """
+        raise NotImplementedError
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/mono_gatherer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/mono_gatherer.py
new file mode 100644
index 0000000000000000000000000000000000000000..bad35fa2f1a46362ac3e515fbe5281621143118a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/mono_gatherer.py
@@ -0,0 +1,34 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Tuple
+
+from mmocr.registry import DATA_GATHERERS
+from .base import BaseGatherer
+
+
+@DATA_GATHERERS.register_module()
+class MonoGatherer(BaseGatherer):
+    """Gather the dataset file. Specifically for the case that only one
+    annotation file is needed. For example,
+
+            img_001.jpg \
+            img_002.jpg ---> train.json
+            img_003.jpg /
+
+    Args:
+        ann_name (str): The name of the annotation file.
+    """
+
+    def __init__(self, ann_name: str, **kwargs) -> None:
+        super().__init__(**kwargs)
+
+        self.ann_name = ann_name
+
+    def __call__(self) -> Tuple[str, str]:
+        """
+        Returns:
+            tuple(str, str): The directory of the image and the path of
+            annotation file.
+        """
+
+        return (self.img_dir, osp.join(self.ann_dir, self.ann_name))
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/naf_gatherer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/naf_gatherer.py
new file mode 100644
index 0000000000000000000000000000000000000000..3251bde40ddd01885ee45c4ad21911156a3ecf07
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/naf_gatherer.py
@@ -0,0 +1,66 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os
+import os.path as osp
+import shutil
+from typing import List, Tuple
+
+from mmocr.registry import DATA_GATHERERS
+from .base import BaseGatherer
+
+
+@DATA_GATHERERS.register_module()
+class NAFGatherer(BaseGatherer):
+    """Gather the dataset file from NAF dataset. Specifically for the case that
+    there is a split file that contains the names of different splits. For
+    example,
+
+        img_001.jpg                           train: img_001.jpg
+        img_002.jpg ---> split_file ---> test: img_002.jpg
+        img_003.jpg                           val: img_003.jpg
+
+    Args:
+        split_file (str, optional): The name of the split file. Defaults to
+            "data_split.json".
+        temp_dir (str, optional): The directory of the temporary images.
+            Defaults to "temp_images".
+    """
+
+    def __init__(self,
+                 split_file='data_split.json',
+                 temp_dir: str = 'temp_images',
+                 **kwargs) -> None:
+        super().__init__(**kwargs)
+        self.temp_dir = temp_dir
+        self.split_file = split_file
+
+    def __call__(self) -> Tuple[List[str], List[str]]:
+        """
+        Returns:
+            tuple(list[str], list[str]): The list of image paths and the list
+            of annotation paths.
+        """
+
+        split_file = osp.join(self.data_root, self.split_file)
+        with open(split_file, 'r') as f:
+            split_data = json.load(f)
+        img_list = list()
+        ann_list = list()
+        # Rename the key
+        split_data['val'] = split_data.pop('valid')
+        if not osp.exists(self.img_dir):
+            os.makedirs(self.img_dir)
+        current_split_data = split_data[self.split]
+        for groups in current_split_data:
+            for img_name in current_split_data[groups]:
+                src_img = osp.join(self.data_root, self.temp_dir, img_name)
+                dst_img = osp.join(self.img_dir, img_name)
+                if not osp.exists(src_img):
+                    Warning(f'{src_img} does not exist!')
+                    continue
+                # move the image to the new path
+                shutil.move(src_img, dst_img)
+                ann = osp.join(self.ann_dir, img_name.replace('.jpg', '.json'))
+                img_list.append(dst_img)
+                ann_list.append(ann)
+        return img_list, ann_list
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/pair_gatherer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/pair_gatherer.py
new file mode 100644
index 0000000000000000000000000000000000000000..63c11e0c121a6608a7a39769f8a9f09bdf3ba076
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/gatherers/pair_gatherer.py
@@ -0,0 +1,59 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import re
+from typing import List, Optional, Tuple
+
+from mmocr.registry import DATA_GATHERERS
+from mmocr.utils import list_files
+from .base import BaseGatherer
+
+
+@DATA_GATHERERS.register_module()
+class PairGatherer(BaseGatherer):
+    """Gather the dataset files. Specifically for the paired annotations. That
+    is to say, each image has a corresponding annotation file. For example,
+
+            img_1.jpg <---> gt_img_1.txt
+            img_2.jpg <---> gt_img_2.txt
+            img_3.jpg <---> gt_img_3.txt
+
+    Args:
+        img_suffixes (List[str]): File suffixes that used for searching.
+        rule (Sequence): The rule for pairing the files. The first element is
+            the matching pattern for the file, and the second element is the
+            replacement pattern, which should be a regular expression. For
+            example, to map the image name img_1.jpg to the annotation name
+            gt_img_1.txt, the rule is
+            [r'img_(\d+)\.([jJ][pP][gG])', r'gt_img_\1.txt'] # noqa: W605 E501
+
+    Note: PairGatherer assumes that each split annotation file is in the
+    correspond split directory. For example, all the train annotation files are
+    in {ann_dir}/train.
+    """
+
+    def __init__(self,
+                 img_suffixes: Optional[List[str]] = None,
+                 rule: Optional[List[str]] = None,
+                 **kwargs) -> None:
+        super().__init__(**kwargs)
+        self.rule = rule
+        self.img_suffixes = img_suffixes
+        # ann_dir = {ann_root}/{ann_dir}/{split}
+        self.ann_dir = osp.join(self.ann_dir, self.split)
+
+    def __call__(self) -> Tuple[List[str], List[str]]:
+        """tuple(list, list): The list of image paths and the list of
+        annotation paths."""
+
+        img_list = list()
+        ann_list = list()
+        for img_path in list_files(self.img_dir, self.img_suffixes):
+            if not re.match(self.rule[0], osp.basename(img_path)):
+                continue
+            ann_name = re.sub(self.rule[0], self.rule[1],
+                              osp.basename(img_path))
+            ann_path = osp.join(self.ann_dir, ann_name)
+            img_list.append(img_path)
+            ann_list.append(ann_path)
+
+        return img_list, ann_list
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/obtainers/__init__.py b/mmocr-dev-1.x/mmocr/datasets/preparers/obtainers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..55d484d981deb70e7a557ee310a36ab9f2c45d64
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/obtainers/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .naive_data_obtainer import NaiveDataObtainer
+
+__all__ = ['NaiveDataObtainer']
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/obtainers/naive_data_obtainer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/obtainers/naive_data_obtainer.py
new file mode 100644
index 0000000000000000000000000000000000000000..51b0d266c847771b403dea62de3b2d81d4d71b02
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/obtainers/naive_data_obtainer.py
@@ -0,0 +1,201 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import glob
+import os
+import os.path as osp
+import shutil
+import ssl
+import urllib.request as request
+from typing import Dict, List, Optional, Tuple
+
+from mmengine import mkdir_or_exist
+
+from mmocr.registry import DATA_OBTAINERS
+from mmocr.utils import check_integrity, is_archive
+
+ssl._create_default_https_context = ssl._create_unverified_context
+
+
+@DATA_OBTAINERS.register_module()
+class NaiveDataObtainer:
+    """A naive pipeline for obtaining dataset.
+
+    download -> extract -> move
+
+    Args:
+        files (list[dict]): A list of file information.
+        cache_path (str): The path to cache the downloaded files.
+        data_root (str): The root path of the dataset. It is usually set auto-
+            matically and users do not need to set it manually in config file
+            in most cases.
+        task (str): The task of the dataset. It is usually set automatically
+            and users do not need to set it manually in config file
+            in most cases.
+    """
+
+    def __init__(self, files: List[Dict], cache_path: str, data_root: str,
+                 task: str) -> None:
+        self.files = files
+        self.cache_path = cache_path
+        self.data_root = data_root
+        self.task = task
+        mkdir_or_exist(self.data_root)
+        mkdir_or_exist(osp.join(self.data_root, f'{task}_imgs'))
+        mkdir_or_exist(osp.join(self.data_root, 'annotations'))
+        mkdir_or_exist(self.cache_path)
+
+    def __call__(self):
+        for file in self.files:
+            save_name = file.get('save_name', None)
+            url = file.get('url', None)
+            md5 = file.get('md5', None)
+            download_path = osp.join(
+                self.cache_path,
+                osp.basename(url) if save_name is None else save_name)
+            # Download required files
+            if not check_integrity(download_path, md5):
+                self.download(url=url, dst_path=download_path)
+            # Extract downloaded zip files to data root
+            self.extract(src_path=download_path, dst_path=self.data_root)
+            # Move & Rename dataset files
+            if 'mapping' in file:
+                self.move(mapping=file['mapping'])
+        self.clean()
+
+    def download(self, url: Optional[str], dst_path: str) -> None:
+        """Download file from given url with progress bar.
+
+        Args:
+            url (str): The url to download the file.
+            dst_path (str): The destination path to save the file.
+        """
+
+        def progress(down: float, block: float, size: float) -> None:
+            """Show download progress.
+
+            Args:
+                down (float): Downloaded size.
+                block (float): Block size.
+                size (float): Total size of the file.
+            """
+
+            percent = min(100. * down * block / size, 100)
+            file_name = osp.basename(dst_path)
+            print(f'\rDownloading {file_name}: {percent:.2f}%', end='')
+
+        if url is None and not osp.exists(dst_path):
+            raise FileNotFoundError(
+                'Direct url is not available for this dataset.'
+                ' Please manually download the required files'
+                ' following the guides.')
+
+        if url.startswith('magnet'):
+            raise NotImplementedError('Please use any BitTorrent client to '
+                                      'download the following magnet link to '
+                                      f'{osp.abspath(dst_path)} and '
+                                      f'try again.\nLink: {url}')
+
+        print('Downloading...')
+        print(f'URL: {url}')
+        print(f'Destination: {osp.abspath(dst_path)}')
+        print('If you stuck here for a long time, please check your network, '
+              'or manually download the file to the destination path and '
+              'run the script again.')
+        request.urlretrieve(url, dst_path, progress)
+        print('')
+
+    def extract(self,
+                src_path: str,
+                dst_path: str,
+                delete: bool = False) -> None:
+        """Extract zip/tar.gz files.
+
+        Args:
+            src_path (str): Path to the zip file.
+            dst_path (str): Path to the destination folder.
+            delete (bool, optional): Whether to delete the zip file. Defaults
+                to False.
+        """
+        if not is_archive(src_path):
+            # Copy the file to the destination folder if it is not a zip
+            if osp.isfile(src_path):
+                shutil.copy(src_path, dst_path)
+            else:
+                shutil.copytree(src_path, dst_path)
+            return
+
+        zip_name = osp.basename(src_path).split('.')[0]
+        if dst_path is None:
+            dst_path = osp.join(osp.dirname(src_path), zip_name)
+        else:
+            dst_path = osp.join(dst_path, zip_name)
+
+        extracted = False
+        if osp.exists(dst_path):
+            name = set(os.listdir(dst_path))
+            if '.finish' in name:
+                extracted = True
+            elif '.finish' not in name and len(name) > 0:
+                while True:
+                    c = input(f'{dst_path} already exists when extracting '
+                              '{zip_name}, unzip again? (y/N) ') or 'N'
+                    if c.lower() in ['y', 'n']:
+                        extracted = c == 'n'
+                        break
+        if extracted:
+            open(osp.join(dst_path, '.finish'), 'w').close()
+            print(f'{zip_name} has been extracted. Skip')
+            return
+        mkdir_or_exist(dst_path)
+        print(f'Extracting: {osp.basename(src_path)}')
+        if src_path.endswith('.zip'):
+            try:
+                import zipfile
+            except ImportError:
+                raise ImportError(
+                    'Please install zipfile by running "pip install zipfile".')
+            with zipfile.ZipFile(src_path, 'r') as zip_ref:
+                zip_ref.extractall(dst_path)
+        elif src_path.endswith('.tar.gz') or src_path.endswith('.tar'):
+            if src_path.endswith('.tar.gz'):
+                mode = 'r:gz'
+            elif src_path.endswith('.tar'):
+                mode = 'r:'
+            try:
+                import tarfile
+            except ImportError:
+                raise ImportError(
+                    'Please install tarfile by running "pip install tarfile".')
+            with tarfile.open(src_path, mode) as tar_ref:
+                tar_ref.extractall(dst_path)
+
+        open(osp.join(dst_path, '.finish'), 'w').close()
+        if delete:
+            os.remove(src_path)
+
+    def move(self, mapping: List[Tuple[str, str]]) -> None:
+        """Rename and move dataset files one by one.
+
+        Args:
+            mapping (List[Tuple[str, str]]): A list of tuples, each
+            tuple contains the source file name and the destination file name.
+        """
+        for src, dst in mapping:
+            src = osp.join(self.data_root, src)
+            dst = osp.join(self.data_root, dst)
+
+            if '*' in src:
+                mkdir_or_exist(dst)
+                for f in glob.glob(src):
+                    if not osp.exists(
+                            osp.join(dst, osp.relpath(f, self.data_root))):
+                        shutil.move(f, dst)
+
+            elif osp.exists(src) and not osp.exists(dst):
+                mkdir_or_exist(osp.dirname(dst))
+                shutil.move(src, dst)
+
+    def clean(self) -> None:
+        """Remove empty dirs."""
+        for root, dirs, files in os.walk(self.data_root, topdown=False):
+            if not files and not dirs:
+                os.rmdir(root)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/packers/__init__.py b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..78eb55dc4e16e34b69dc0fa784e9c1120d912d07
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/__init__.py
@@ -0,0 +1,11 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .base import BasePacker
+from .textdet_packer import TextDetPacker
+from .textrecog_packer import TextRecogCropPacker, TextRecogPacker
+from .textspotting_packer import TextSpottingPacker
+from .wildreceipt_packer import WildReceiptPacker
+
+__all__ = [
+    'BasePacker', 'TextDetPacker', 'TextRecogPacker', 'TextRecogCropPacker',
+    'TextSpottingPacker', 'WildReceiptPacker'
+]
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/packers/base.py b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..4826fd32225b9445ff868a0c9774ee01ae3849e5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/base.py
@@ -0,0 +1,57 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import abstractmethod
+from typing import Dict, List, Tuple
+
+from mmengine import track_parallel_progress
+
+
+class BasePacker:
+    """Base class for packing the parsed annotation info to MMOCR format.
+
+    Args:
+        data_root (str): The root path of the dataset.  It is usually set auto-
+            matically and users do not need to set it manually in config file
+            in most cases.
+        split (str): The split of the dataset. It is usually set automatically
+            and users do not need to set it manually in config file in most
+            cases.
+        nproc (int): Number of processes to process the data. Defaults to 1.
+            It is usually set automatically and users do not need to set it
+            manually in config file in most cases.
+    """
+
+    def __init__(self, data_root: str, split: str, nproc: int = 1) -> None:
+        self.data_root = data_root
+        self.split = split
+        self.nproc = nproc
+
+    @abstractmethod
+    def pack_instance(self, sample: Tuple, split: str) -> Dict:
+        """Pack the parsed annotation info to an MMOCR format instance.
+
+        Args:
+            sample (Tuple): A tuple of (img_file, ann_file).
+               - img_path (str): Path to image file.
+               - instances (Sequence[Dict]): A list of converted annos.
+            split (str): The split of the instance.
+
+        Returns:
+            Dict: An MMOCR format instance.
+        """
+
+    @abstractmethod
+    def add_meta(self, sample: List) -> Dict:
+        """Add meta information to the sample.
+
+        Args:
+            sample (List): A list of samples of the dataset.
+
+        Returns:
+            Dict: A dict contains the meta information and samples.
+        """
+
+    def __call__(self, samples) -> Dict:
+        samples = track_parallel_progress(
+            self.pack_instance, samples, nproc=self.nproc)
+        samples = self.add_meta(samples)
+        return samples
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textdet_packer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textdet_packer.py
new file mode 100644
index 0000000000000000000000000000000000000000..b9d4c230945fefaca9d6c90a1b99ed05b3956269
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textdet_packer.py
@@ -0,0 +1,110 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Dict, List, Tuple
+
+import mmcv
+
+from mmocr.registry import DATA_PACKERS
+from mmocr.utils import bbox2poly, poly2bbox
+from .base import BasePacker
+
+
+@DATA_PACKERS.register_module()
+class TextDetPacker(BasePacker):
+    """Text detection packer. It is used to pack the parsed annotation info to.
+
+    .. code-block:: python
+
+        {
+            "metainfo":
+                {
+                    "dataset_type": "TextDetDataset",
+                    "task_name": "textdet",
+                    "category": [{"id": 0, "name": "text"}]
+                },
+            "data_list":
+                [
+                    {
+                        "img_path": "test_img.jpg",
+                        "height": 640,
+                        "width": 640,
+                        "instances":
+                        [
+                            {
+                                "polygon": [0, 0, 0, 10, 10, 20, 20, 0],
+                                "bbox": [0, 0, 10, 20],
+                                "bbox_label": 0,
+                                "ignore": False
+                            },
+                            // ...
+                        ]
+                    }
+                ]
+        }
+    """
+
+    def pack_instance(self, sample: Tuple, bbox_label: int = 0) -> Dict:
+        """Pack the parsed annotation info to an MMOCR format instance.
+
+        Args:
+            sample (Tuple): A tuple of (img_file, instances).
+               - img_path (str): Path to the image file.
+               - instances (Sequence[Dict]): A list of converted annos. Each
+                 element should be a dict with the following keys:
+
+                 - 'poly' or 'box'
+                 - 'ignore'
+                 - 'bbox_label' (optional)
+            split (str): The split of the instance.
+
+        Returns:
+            Dict: An MMOCR format instance.
+        """
+
+        img_path, instances = sample
+
+        img = mmcv.imread(img_path)
+        h, w = img.shape[:2]
+
+        packed_instances = list()
+        for instance in instances:
+            poly = instance.get('poly', None)
+            box = instance.get('box', None)
+            assert box or poly
+            packed_sample = dict(
+                polygon=poly if poly else list(
+                    bbox2poly(box).astype('float64')),
+                bbox=box if box else list(poly2bbox(poly).astype('float64')),
+                bbox_label=bbox_label,
+                ignore=instance['ignore'])
+            packed_instances.append(packed_sample)
+
+        packed_instances = dict(
+            instances=packed_instances,
+            img_path=osp.relpath(img_path, self.data_root),
+            height=h,
+            width=w)
+
+        return packed_instances
+
+    def add_meta(self, sample: List) -> Dict:
+        """Add meta information to the sample.
+
+        Args:
+            sample (List): A list of samples of the dataset.
+
+        Returns:
+            Dict: A dict contains the meta information and samples.
+        """
+        meta = {
+            'metainfo': {
+                'dataset_type': 'TextDetDataset',
+                'task_name': 'textdet',
+                'category': [{
+                    'id': 0,
+                    'name': 'text'
+                }]
+            },
+            'data_list': sample
+        }
+        return meta
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textrecog_packer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textrecog_packer.py
new file mode 100644
index 0000000000000000000000000000000000000000..6af70064aa7303d494c6d51121ece8c6e4cd06da
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textrecog_packer.py
@@ -0,0 +1,175 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Dict, List, Tuple
+
+import mmcv
+from mmengine import mkdir_or_exist
+
+from mmocr.registry import DATA_PACKERS
+from mmocr.utils import bbox2poly, crop_img, poly2bbox, warp_img
+from .base import BasePacker
+
+
+@DATA_PACKERS.register_module()
+class TextRecogPacker(BasePacker):
+    """Text recogntion packer. It is used to pack the parsed annotation info
+    to:
+
+    .. code-block:: python
+
+        {
+            "metainfo":
+                {
+                    "dataset_type": "TextRecogDataset",
+                    "task_name": "textrecog",
+                },
+            "data_list":
+                [
+                    {
+                        "img_path": "textrecog_imgs/train/test_img.jpg",
+                        "instances":
+                            [
+                                {
+                                    "text": "GRAND"
+                                }
+                            ]
+                    }
+                ]
+        }
+    """
+
+    def pack_instance(self, sample: Tuple) -> Dict:
+        """Pack the text info to a recognition instance.
+
+        Args:
+            samples (Tuple): A tuple of (img_name, text).
+            split (str): The split of the instance.
+
+        Returns:
+            Dict: The packed instance.
+        """
+
+        img_name, text = sample
+        img_name = osp.relpath(img_name, self.data_root)
+        packed_instance = dict(instances=[dict(text=text)], img_path=img_name)
+
+        return packed_instance
+
+    def add_meta(self, sample: List) -> Dict:
+        """Add meta information to the sample.
+
+        Args:
+            sample (List): A list of samples of the dataset.
+
+        Returns:
+            Dict: A dict contains the meta information and samples.
+        """
+        meta = {
+            'metainfo': {
+                'dataset_type': 'TextRecogDataset',
+                'task_name': 'textrecog'
+            },
+            'data_list': sample
+        }
+        return meta
+
+
+@DATA_PACKERS.register_module()
+class TextRecogCropPacker(TextRecogPacker):
+    """Text recognition packer with image cropper. It is used to pack the
+    parsed annotation info and crop out the word images from the full-size
+    ones.
+
+    Args:
+        crop_with_warp (bool): Whether to crop the text from the original
+            image using opencv warpPerspective.
+        jitter (bool): (Applicable when crop_with_warp=True)
+            Whether to jitter the box.
+        jitter_ratio_x (float): (Applicable when crop_with_warp=True)
+            Horizontal jitter ratio relative to the height.
+        jitter_ratio_y (float): (Applicable when crop_with_warp=True)
+            Vertical jitter ratio relative to the height.
+        long_edge_pad_ratio (float): (Applicable when crop_with_warp=False)
+            The ratio of padding the long edge of the cropped image.
+            Defaults to 0.1.
+        short_edge_pad_ratio (float): (Applicable when crop_with_warp=False)
+            The ratio of padding the short edge of the cropped image.
+            Defaults to 0.05.
+    """
+
+    def __init__(self,
+                 crop_with_warp: bool = False,
+                 jitter: bool = False,
+                 jitter_ratio_x: float = 0.0,
+                 jitter_ratio_y: float = 0.0,
+                 long_edge_pad_ratio: float = 0.0,
+                 short_edge_pad_ratio: float = 0.0,
+                 **kwargs):
+        super().__init__(**kwargs)
+        self.crop_with_warp = crop_with_warp
+        self.jitter = jitter
+        self.jrx = jitter_ratio_x
+        self.jry = jitter_ratio_y
+        self.lepr = long_edge_pad_ratio
+        self.sepr = short_edge_pad_ratio
+        # Crop converter crops the images of textdet to patches
+        self.cropped_img_dir = 'textrecog_imgs'
+        self.crop_save_path = osp.join(self.data_root, self.cropped_img_dir)
+        mkdir_or_exist(self.crop_save_path)
+        mkdir_or_exist(osp.join(self.crop_save_path, self.split))
+
+    def pack_instance(self, sample: Tuple) -> List:
+        """Crop patches from image.
+
+        Args:
+            samples (Tuple): A tuple of (img_name, text).
+
+        Return:
+            List: The list of cropped patches.
+        """
+
+        def get_box(instance: Dict) -> List:
+            if 'box' in instance:
+                return bbox2poly(instance['box']).tolist()
+            if 'poly' in instance:
+                return bbox2poly(poly2bbox(instance['poly'])).tolist()
+
+        def get_poly(instance: Dict) -> List:
+            if 'poly' in instance:
+                return instance['poly']
+            if 'box' in instance:
+                return bbox2poly(instance['box']).tolist()
+
+        data_list = []
+        img_path, instances = sample
+        img = mmcv.imread(img_path)
+        for i, instance in enumerate(instances):
+            if instance['ignore']:
+                continue
+            if self.crop_with_warp:
+                poly = get_poly(instance)
+                patch = warp_img(img, poly, self.jitter, self.jrx, self.jry)
+            else:
+                box = get_box(instance)
+                patch = crop_img(img, box, self.lepr, self.sepr)
+            if patch.shape[0] == 0 or patch.shape[1] == 0:
+                continue
+            text = instance['text']
+            patch_name = osp.splitext(
+                osp.basename(img_path))[0] + f'_{i}' + osp.splitext(
+                    osp.basename(img_path))[1]
+            dst_path = osp.join(self.crop_save_path, self.split, patch_name)
+            mmcv.imwrite(patch, dst_path)
+            rec_instance = dict(
+                instances=[dict(text=text)],
+                img_path=osp.join(self.cropped_img_dir, self.split,
+                                  patch_name))
+            data_list.append(rec_instance)
+
+        return data_list
+
+    def add_meta(self, sample: List) -> Dict:
+        # Since the TextRecogCropConverter packs all of the patches in a single
+        # image into a list, we need to flatten the list.
+        sample = [item for sublist in sample for item in sublist]
+        return super().add_meta(sample)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textspotting_packer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textspotting_packer.py
new file mode 100644
index 0000000000000000000000000000000000000000..ee5467169a66f727d9052905f8a4c0d1731003fe
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/textspotting_packer.py
@@ -0,0 +1,113 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Dict, List, Tuple
+
+import mmcv
+
+from mmocr.registry import DATA_PACKERS
+from mmocr.utils import bbox2poly, poly2bbox
+from .base import BasePacker
+
+
+@DATA_PACKERS.register_module()
+class TextSpottingPacker(BasePacker):
+    """Text spotting packer. It is used to pack the parsed annotation info to:
+
+    .. code-block:: python
+
+        {
+            "metainfo":
+                {
+                    "dataset_type": "TextDetDataset",
+                    "task_name": "textdet",
+                    "category": [{"id": 0, "name": "text"}]
+                },
+            "data_list":
+                [
+                    {
+                        "img_path": "test_img.jpg",
+                        "height": 640,
+                        "width": 640,
+                        "instances":
+                        [
+                            {
+                                "polygon": [0, 0, 0, 10, 10, 20, 20, 0],
+                                "bbox": [0, 0, 10, 20],
+                                "bbox_label": 0,
+                                "ignore": False,
+                                "text": "mmocr"
+                            },
+                            // ...
+                        ]
+                    }
+                ]
+        }
+    """
+
+    def pack_instance(self, sample: Tuple, bbox_label: int = 0) -> Dict:
+        """Pack the parsed annotation info to an MMOCR format instance.
+
+        Args:
+            sample (Tuple): A tuple of (img_file, ann_file).
+               - img_path (str): Path to image file.
+               - instances (Sequence[Dict]): A list of converted annos. Each
+                    element should be a dict with the following keys:
+                    - 'poly' or 'box'
+                    - 'text'
+                    - 'ignore'
+                    - 'bbox_label' (optional)
+            split (str): The split of the instance.
+
+        Returns:
+            Dict: An MMOCR format instance.
+        """
+
+        img_path, instances = sample
+
+        img = mmcv.imread(img_path)
+        h, w = img.shape[:2]
+
+        packed_instances = list()
+        for instance in instances:
+            assert 'text' in instance, 'Text is not found in the instance.'
+            poly = instance.get('poly', None)
+            box = instance.get('box', None)
+            assert box or poly
+            packed_sample = dict(
+                polygon=poly if poly else list(
+                    bbox2poly(box).astype('float64')),
+                bbox=box if box else list(poly2bbox(poly).astype('float64')),
+                bbox_label=bbox_label,
+                ignore=instance['ignore'],
+                text=instance['text'])
+            packed_instances.append(packed_sample)
+
+        packed_instances = dict(
+            instances=packed_instances,
+            img_path=osp.relpath(img_path, self.data_root),
+            height=h,
+            width=w)
+
+        return packed_instances
+
+    def add_meta(self, sample: List) -> Dict:
+        """Add meta information to the sample.
+
+        Args:
+            sample (List): A list of samples of the dataset.
+
+        Returns:
+            Dict: A dict contains the meta information and samples.
+        """
+        meta = {
+            'metainfo': {
+                'dataset_type': 'TextSpottingDataset',
+                'task_name': 'textspotting',
+                'category': [{
+                    'id': 0,
+                    'name': 'text'
+                }]
+            },
+            'data_list': sample
+        }
+        return meta
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/packers/wildreceipt_packer.py b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/wildreceipt_packer.py
new file mode 100644
index 0000000000000000000000000000000000000000..df13bc66a3dd5c188d3fa093651521955b4e1630
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/packers/wildreceipt_packer.py
@@ -0,0 +1,112 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+from typing import List
+
+from mmocr.registry import DATA_PACKERS
+from .base import BasePacker
+
+
+@DATA_PACKERS.register_module()
+class WildReceiptPacker(BasePacker):
+    """Pack the wildreceipt annotation to MMOCR format.
+
+    Args:
+        merge_bg_others (bool): If True, give the same label to "background"
+                class and "others" class. Defaults to True.
+        ignore_idx (int): Index for ``ignore`` class. Defaults to 0.
+        others_idx (int): Index for ``others`` class. Defaults to 25.
+    """
+
+    def __init__(self,
+                 merge_bg_others: bool = False,
+                 ignore_idx: int = 0,
+                 others_idx: int = 25,
+                 **kwargs) -> None:
+        super().__init__(**kwargs)
+
+        self.ignore_idx = ignore_idx
+        self.others_idx = others_idx
+        self.merge_bg_others = merge_bg_others
+
+    def add_meta(self, samples: List) -> List:
+        """No meta info is required for the wildreceipt dataset."""
+        return samples
+
+    def pack_instance(self, sample: str):
+        """Pack line-json str of close set to line-json str of open set.
+
+        Args:
+            sample (str): The string to be deserialized to
+                the close set dictionary object.
+            split (str): The split of the instance.
+        """
+        # Two labels at the same index of the following two lists
+        # make up a key-value pair. For example, in wildreceipt,
+        # closeset_key_inds[0] maps to "Store_name_key"
+        # and closeset_value_inds[0] maps to "Store_addr_value".
+        closeset_key_inds = list(range(2, self.others_idx, 2))
+        closeset_value_inds = list(range(1, self.others_idx, 2))
+
+        openset_node_label_mapping = {
+            'bg': 0,
+            'key': 1,
+            'value': 2,
+            'others': 3
+        }
+        if self.merge_bg_others:
+            openset_node_label_mapping['others'] = openset_node_label_mapping[
+                'bg']
+
+        closeset_obj = json.loads(sample)
+        openset_obj = {
+            'file_name':
+            closeset_obj['file_name'].replace(self.data_root + '/', ''),
+            'height':
+            closeset_obj['height'],
+            'width':
+            closeset_obj['width'],
+            'annotations': []
+        }
+
+        edge_idx = 1
+        label_to_edge = {}
+        for anno in closeset_obj['annotations']:
+            label = anno['label']
+            if label == self.ignore_idx:
+                anno['label'] = openset_node_label_mapping['bg']
+                anno['edge'] = edge_idx
+                edge_idx += 1
+            elif label == self.others_idx:
+                anno['label'] = openset_node_label_mapping['others']
+                anno['edge'] = edge_idx
+                edge_idx += 1
+            else:
+                edge = label_to_edge.get(label, None)
+                if edge is not None:
+                    anno['edge'] = edge
+                    if label in closeset_key_inds:
+                        anno['label'] = openset_node_label_mapping['key']
+                    elif label in closeset_value_inds:
+                        anno['label'] = openset_node_label_mapping['value']
+                else:
+                    tmp_key = 'key'
+                    if label in closeset_key_inds:
+                        label_with_same_edge = closeset_value_inds[
+                            closeset_key_inds.index(label)]
+                    elif label in closeset_value_inds:
+                        label_with_same_edge = closeset_key_inds[
+                            closeset_value_inds.index(label)]
+                        tmp_key = 'value'
+                    edge_counterpart = label_to_edge.get(
+                        label_with_same_edge, None)
+                    if edge_counterpart is not None:
+                        anno['edge'] = edge_counterpart
+                    else:
+                        anno['edge'] = edge_idx
+                        edge_idx += 1
+                    anno['label'] = openset_node_label_mapping[tmp_key]
+                    label_to_edge[label] = anno['edge']
+
+        openset_obj['annotations'] = closeset_obj['annotations']
+
+        return json.dumps(openset_obj, ensure_ascii=False)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/__init__.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..fd37947107eba2d2cd54630f5d44360a046d7d32
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/__init__.py
@@ -0,0 +1,22 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .base import BaseParser
+from .coco_parser import COCOTextDetAnnParser
+from .ctw1500_parser import CTW1500AnnParser
+from .funsd_parser import FUNSDTextDetAnnParser
+from .icdar_txt_parser import (ICDARTxtTextDetAnnParser,
+                               ICDARTxtTextRecogAnnParser)
+from .mjsynth_parser import MJSynthAnnParser
+from .naf_parser import NAFAnnParser
+from .sroie_parser import SROIETextDetAnnParser
+from .svt_parser import SVTTextDetAnnParser
+from .synthtext_parser import SynthTextAnnParser
+from .totaltext_parser import TotaltextTextDetAnnParser
+from .wildreceipt_parser import WildreceiptKIEAnnParser
+
+__all__ = [
+    'BaseParser', 'ICDARTxtTextDetAnnParser', 'ICDARTxtTextRecogAnnParser',
+    'TotaltextTextDetAnnParser', 'WildreceiptKIEAnnParser',
+    'COCOTextDetAnnParser', 'SVTTextDetAnnParser', 'FUNSDTextDetAnnParser',
+    'SROIETextDetAnnParser', 'NAFAnnParser', 'CTW1500AnnParser',
+    'SynthTextAnnParser', 'MJSynthAnnParser'
+]
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/base.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..dfe79e1549320e22ce9a631a6b2fe81d192917e3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/base.py
@@ -0,0 +1,124 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import abstractmethod
+from typing import Dict, List, Tuple, Union
+
+from mmocr.utils import track_parallel_progress_multi_args
+
+
+class BaseParser:
+    """Base class for parsing annotations.
+
+    Args:
+        split (str): The split of the dataset. It is usually set automatically
+            and users do not need to set it manually in config file in most
+            cases.
+        nproc (int): Number of processes to process the data. Defaults to 1.
+            It is usually set automatically and users do not need to set it
+            manually in config file in most cases.
+    """
+
+    def __init__(self, split: str, nproc: int = 1) -> None:
+        self.nproc = nproc
+        self.split = split
+
+    def __call__(self, img_paths: Union[List[str], str],
+                 ann_paths: Union[List[str], str]) -> List[Tuple]:
+        """Parse annotations.
+
+        Args:
+            img_paths (str or list[str]): the list of image paths or the
+                directory of the images.
+            ann_paths (str or list[str]): the list of annotation paths or the
+                path of the annotation file which contains all the annotations.
+
+        Returns:
+            List: A list of a tuple of (image_path, instances)
+        """
+        samples = self.parse_files(img_paths, ann_paths)
+        return samples
+
+    def parse_files(self, img_paths: Union[List[str], str],
+                    ann_paths: Union[List[str], str]) -> List[Tuple]:
+        """Convert annotations to MMOCR format.
+
+        Args:
+            img_paths (str or list[str]): the list of image paths or the
+                directory of the images.
+            ann_paths (str or list[str]): the list of annotation paths or the
+                path of the annotation file which contains all the annotations.
+
+        Returns:
+            List[Tuple]: A list of a tuple of (image_path, instances).
+
+            - img_path (str): The path of image file, which can be read
+              directly by opencv.
+            - instance: instance is a list of dict containing parsed
+              annotations, which should contain the following keys:
+
+              - 'poly' or 'box' (textdet or textspotting)
+              - 'text' (textspotting or textrecog)
+              - 'ignore' (all task)
+        """
+        samples = track_parallel_progress_multi_args(
+            self.parse_file, (img_paths, ann_paths), nproc=self.nproc)
+        return samples
+
+    @abstractmethod
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+        """Convert annotation for a single image.
+
+        Args:
+            img_path (str): The path of image.
+            ann_path (str): The path of annotation.
+
+        Returns:
+            Tuple: A tuple of (img_path, instance).
+
+            - img_path (str): The path of image file, which can be read
+              directly by opencv.
+            - instance: instance is a list of dict containing parsed
+              annotations, which should contain the following keys:
+
+              - 'poly' or 'box' (textdet or textspotting)
+              - 'text' (textspotting or textrecog)
+              - 'ignore' (all task)
+
+        Examples:
+        An example of returned values:
+        >>> ('imgs/train/xxx.jpg',
+        >>> dict(
+        >>>    poly=[[[0, 1], [1, 1], [1, 0], [0, 0]]],
+        >>>    text='hello',
+        >>>    ignore=False)
+        >>> )
+        """
+        raise NotImplementedError
+
+    def loader(self,
+               file_path: str,
+               separator: str = ',',
+               format: str = 'x1,y1,x2,y2,x3,y3,x4,y4,trans',
+               encoding='utf-8') -> Union[Dict, str]:
+        """A basic loader designed for .txt format annotation. It greedily
+        extracts information separated by separators.
+
+        Args:
+            file_path (str): Path to the txt file.
+            separator (str, optional): Separator of data. Defaults to ','.
+            format (str, optional): Annotation format.
+                Defaults to 'x1,y1,x2,y2,x3,y3,x4,y4,trans'.
+            encoding (str, optional): Encoding format. Defaults to 'utf-8'.
+
+        Yields:
+            Iterator[Union[Dict, str]]: Original text line or a dict containing
+            the information of the text line.
+        """
+        keys = format.split(separator)
+        with open(file_path, 'r', encoding=encoding) as f:
+            for line in f.readlines():
+                line = line.strip()
+                values = line.split(separator)
+                values = values[:len(keys) -
+                                1] + [separator.join(values[len(keys) - 1:])]
+                if line:
+                    yield dict(zip(keys, values))
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/coco_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/coco_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..0d23bd00e523d3212ea1387bef7b30338adb2e45
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/coco_parser.py
@@ -0,0 +1,99 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List
+
+from mmdet.datasets.api_wrappers import COCO
+
+from mmocr.datasets.preparers.parsers.base import BaseParser
+from mmocr.registry import DATA_PARSERS
+
+
+@DATA_PARSERS.register_module()
+class COCOTextDetAnnParser(BaseParser):
+    """COCO-like Format Text Detection Parser.
+
+    Args:
+        data_root (str): The root path of the dataset. Defaults to None.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+        variant (str): Variant of COCO dataset, options are ['standard',
+            'cocotext', 'textocr']. Defaults to 'standard'.
+    """
+
+    def __init__(self,
+                 split: str,
+                 nproc: int = 1,
+                 variant: str = 'standard') -> None:
+
+        super().__init__(nproc=nproc, split=split)
+        assert variant in ['standard', 'cocotext', 'textocr'], \
+            f'variant {variant} is not supported'
+        self.variant = variant
+
+    def parse_files(self, img_dir: str, ann_path: str) -> List:
+        """Parse single annotation."""
+        samples = list()
+        coco = COCO(ann_path)
+        if self.variant == 'cocotext' or self.variant == 'textocr':
+            # cocotext stores both 'train' and 'val' split in one annotation
+            # file, and uses the 'set' field to distinguish them.
+            if self.variant == 'cocotext':
+                for img in coco.dataset['imgs']:
+                    if self.split == coco.dataset['imgs'][img]['set']:
+                        coco.imgs[img] = coco.dataset['imgs'][img]
+            # textocr stores 'train' and 'val'split separately
+            elif self.variant == 'textocr':
+                coco.imgs = coco.dataset['imgs']
+            # both cocotext and textocr stores the annotation ID in the
+            # 'imgToAnns' field, so we need to convert it to the 'anns' field
+            for img in coco.dataset['imgToAnns']:
+                ann_ids = coco.dataset['imgToAnns'][img]
+                anns = [
+                    coco.dataset['anns'][str(ann_id)] for ann_id in ann_ids
+                ]
+                coco.dataset['imgToAnns'][img] = anns
+                coco.imgToAnns = coco.dataset['imgToAnns']
+                coco.anns = coco.dataset['anns']
+        img_ids = coco.get_img_ids()
+        total_ann_ids = []
+        for img_id in img_ids:
+            img_info = coco.load_imgs([img_id])[0]
+            img_info['img_id'] = img_id
+            img_path = img_info['file_name']
+            ann_ids = coco.get_ann_ids(img_ids=[img_id])
+            if len(ann_ids) == 0:
+                continue
+            ann_ids = [str(ann_id) for ann_id in ann_ids]
+            ann_info = coco.load_anns(ann_ids)
+            total_ann_ids.extend(ann_ids)
+            instances = list()
+            for ann in ann_info:
+                if self.variant == 'standard':
+                    # standard coco format use 'segmentation' field to store
+                    # the polygon and 'iscrowd' field to store the ignore flag,
+                    # and the 'text' field to store the text content.
+                    instances.append(
+                        dict(
+                            poly=ann['segmentation'][0],
+                            text=ann.get('text', None),
+                            ignore=ann.get('iscrowd', False)))
+                elif self.variant == 'cocotext':
+                    # cocotext use 'utf8_string' field to store the text and
+                    # 'legibility' field to store the ignore flag, and the
+                    # 'mask' field to store the polygon.
+                    instances.append(
+                        dict(
+                            poly=ann['mask'],
+                            text=ann.get('utf8_string', None),
+                            ignore=ann['legibility'] == 'illegible'))
+                elif self.variant == 'textocr':
+                    # textocr use 'utf8_string' field to store the text and
+                    # the 'points' field to store the polygon, '.' is used to
+                    # represent the ignored text.
+                    text = ann.get('utf8_string', None)
+                    instances.append(
+                        dict(
+                            poly=ann['points'], text=text, ignore=text == '.'))
+            samples.append((osp.join(img_dir,
+                                     osp.basename(img_path)), instances))
+        return samples
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/ctw1500_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/ctw1500_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..4c6bdbc59a82c485b6f62142b3cb31ae5874a795
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/ctw1500_parser.py
@@ -0,0 +1,102 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import xml.etree.ElementTree as ET
+from typing import List, Tuple
+
+import numpy as np
+
+from mmocr.datasets.preparers.data_preparer import DATA_PARSERS
+from mmocr.datasets.preparers.parsers.base import BaseParser
+from mmocr.utils import list_from_file
+
+
+@DATA_PARSERS.register_module()
+class CTW1500AnnParser(BaseParser):
+    """SCUT-CTW1500 dataset parser.
+
+    Args:
+        ignore (str): The text of the ignored instances. Defaults to
+            '###'.
+    """
+
+    def __init__(self, ignore: str = '###', **kwargs) -> None:
+        self.ignore = ignore
+        super().__init__(**kwargs)
+
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+        """Convert annotation for a single image.
+
+        Args:
+            img_path (str): The path of image.
+            ann_path (str): The path of annotation.
+
+        Returns:
+            Tuple: A tuple of (img_path, instance).
+
+            - img_path (str): The path of image file, which can be read
+              directly by opencv.
+            - instance: instance is a list of dict containing parsed
+              annotations, which should contain the following keys:
+
+              - 'poly' or 'box' (textdet or textspotting)
+              - 'text' (textspotting or textrecog)
+              - 'ignore' (all task)
+
+        Examples:
+            An example of returned values:
+            >>> ('imgs/train/xxx.jpg',
+            >>> dict(
+            >>>    poly=[[[0, 1], [1, 1], [1, 0], [0, 0]]],
+            >>>    text='hello',
+            >>>    ignore=False)
+            >>> )
+        """
+
+        if self.split == 'train':
+            instances = self.load_xml_info(ann_path)
+        elif self.split == 'test':
+            instances = self.load_txt_info(ann_path)
+        return img_path, instances
+
+    def load_txt_info(self, anno_dir: str) -> List:
+        """Load the annotation of the SCUT-CTW dataset (test split).
+        Args:
+            anno_dir (str): Path to the annotation file.
+
+        Returns:
+            list[Dict]: List of instances.
+        """
+        instances = list()
+        for line in list_from_file(anno_dir):
+            # each line has one ploygen (n vetices), and one text.
+            # e.g., 695,885,866,888,867,1146,696,1143,####Latin 9
+            line = line.strip()
+            strs = line.split(',')
+            assert strs[28][0] == '#'
+            xy = [int(x) for x in strs[0:28]]
+            assert len(xy) == 28
+            poly = np.array(xy).reshape(-1).tolist()
+            text = strs[28][4:]
+            instances.append(
+                dict(poly=poly, text=text, ignore=text == self.ignore))
+        return instances
+
+    def load_xml_info(self, anno_dir: str) -> List:
+        """Load the annotation of the SCUT-CTW dataset (train split).
+        Args:
+            anno_dir (str): Path to the annotation file.
+
+        Returns:
+            list[Dict]: List of instances.
+        """
+        obj = ET.parse(anno_dir)
+        instances = list()
+        for image in obj.getroot():  # image
+            for box in image:  # image
+                text = box[0].text
+                segs = box[1].text
+                pts = segs.strip().split(',')
+                pts = [int(x) for x in pts]
+                assert len(pts) == 28
+                poly = np.array(pts).reshape(-1).tolist()
+                instances.append(dict(poly=poly, text=text, ignore=0))
+        return instances
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/funsd_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/funsd_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..bf6d2cd5f636b0c12ae0d4fc1744b128b302528f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/funsd_parser.py
@@ -0,0 +1,36 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+from typing import Tuple
+
+from mmocr.registry import DATA_PARSERS
+from mmocr.utils import bbox2poly
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class FUNSDTextDetAnnParser(BaseParser):
+    """FUNSD Text Detection Annotation Parser. See
+    dataset_zoo/funsd/sample_anno.md for annotation example.
+
+    Args:
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+    """
+
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+        """Parse single annotation."""
+        instances = list()
+        for poly, text, ignore in self.loader(ann_path):
+            instances.append(dict(poly=poly, text=text, ignore=ignore))
+
+        return img_path, instances
+
+    def loader(self, file_path: str):
+        with open(file_path, 'r') as f:
+            data = json.load(f)
+            for form in data['form']:
+                for word in form['words']:
+                    poly = bbox2poly(word['box']).tolist()
+                    text = word['text']
+                    ignore = len(text) == 0
+                    yield poly, text, ignore
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/icdar_txt_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/icdar_txt_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..e90d5d7b94a2345fbe803d254428326215de4fea
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/icdar_txt_parser.py
@@ -0,0 +1,127 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List, Optional, Tuple
+
+from mmocr.registry import DATA_PARSERS
+from mmocr.utils import bbox2poly
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class ICDARTxtTextDetAnnParser(BaseParser):
+    """ICDAR Txt Format Text Detection Annotation Parser.
+
+    The original annotation format of this dataset is stored in txt files,
+    which is formed as the following format:
+        x1, y1, x2, y2, x3, y3, x4, y4, transcription
+
+    Args:
+        separator (str): The separator between each element in a line. Defaults
+            to ','.
+        ignore (str): The text to be ignored. Defaults to '###'.
+        format (str): The format of the annotation. Defaults to
+            'x1,y1,x2,y2,x3,y3,x4,trans'.
+        encoding (str): The encoding of the annotation file. Defaults to
+            'utf-8-sig'.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+        remove_strs (List[str], Optional): Used to remove redundant strings in
+            the transcription. Defaults to None.
+        mode (str, optional): The mode of the box converter. Supported modes
+            are 'xywh' and 'xyxy'. Defaults to None.
+    """
+
+    def __init__(self,
+                 separator: str = ',',
+                 ignore: str = '###',
+                 format: str = 'x1,y1,x2,y2,x3,y3,x4,y4,trans',
+                 encoding: str = 'utf-8',
+                 remove_strs: Optional[List[str]] = None,
+                 mode: str = None,
+                 **kwargs) -> None:
+        self.sep = separator
+        self.format = format
+        self.encoding = encoding
+        self.ignore = ignore
+        self.mode = mode
+        self.remove_strs = remove_strs
+        super().__init__(**kwargs)
+
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+        """Parse single annotation."""
+        instances = list()
+        for anno in self.loader(ann_path, self.sep, self.format,
+                                self.encoding):
+            anno = list(anno.values())
+            if self.remove_strs is not None:
+                for strs in self.remove_strs:
+                    for i in range(len(anno)):
+                        if strs in anno[i]:
+                            anno[i] = anno[i].replace(strs, '')
+            poly = list(map(float, anno[0:-1]))
+            if self.mode is not None:
+                poly = bbox2poly(poly, self.mode)
+                poly = poly.tolist()
+            text = anno[-1]
+            instances.append(
+                dict(poly=poly, text=text, ignore=text == self.ignore))
+
+        return img_path, instances
+
+
+@DATA_PARSERS.register_module()
+class ICDARTxtTextRecogAnnParser(BaseParser):
+    """ICDAR Txt Format Text Recognition Annotation Parser.
+
+    The original annotation format of this dataset is stored in txt files,
+    which is formed as the following format:
+        img_path, transcription
+
+    Args:
+        separator (str): The separator between each element in a line. Defaults
+            to ','.
+        ignore (str): The text to be ignored. Defaults to '#'.
+        format (str): The format of the annotation. Defaults to 'img, text'.
+        encoding (str): The encoding of the annotation file. Defaults to
+            'utf-8-sig'.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+        base_name (bool): Whether to use the basename of the image path as the
+            image name. Defaults to False.
+        remove_strs (List[str], Optional): Used to remove redundant strings in
+            the transcription. Defaults to ['"'].
+    """
+
+    def __init__(self,
+                 separator: str = ',',
+                 ignore: str = '#',
+                 format: str = 'img,text',
+                 encoding: str = 'utf-8',
+                 remove_strs: Optional[List[str]] = ['"'],
+                 **kwargs) -> None:
+        self.sep = separator
+        self.format = format
+        self.encoding = encoding
+        self.ignore = ignore
+        self.remove_strs = remove_strs
+        super().__init__(**kwargs)
+
+    def parse_files(self, img_dir: str, ann_path: str) -> List:
+        """Parse annotations."""
+        assert isinstance(ann_path, str)
+        samples = list()
+        for anno in self.loader(
+                file_path=ann_path,
+                format=self.format,
+                encoding=self.encoding,
+                separator=self.sep):
+            text = anno['text'].strip()
+            if self.remove_strs is not None:
+                for strs in self.remove_strs:
+                    text = text.replace(strs, '')
+            if text == self.ignore:
+                continue
+            img_name = anno['img']
+            samples.append((osp.join(img_dir, img_name), text))
+
+        return samples
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/mjsynth_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/mjsynth_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..3eee6e29a373bfb9689de1845f7a22587750816c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/mjsynth_parser.py
@@ -0,0 +1,50 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List
+
+from mmocr.registry import DATA_PARSERS
+from .icdar_txt_parser import ICDARTxtTextRecogAnnParser
+
+
+@DATA_PARSERS.register_module()
+class MJSynthAnnParser(ICDARTxtTextRecogAnnParser):
+    """MJSynth Text Recognition Annotation Parser.
+
+    The original annotation format of this dataset is stored in txt files,
+    which is formed as the following format:
+        img_path, transcription
+
+    Args:
+        separator (str): The separator between each element in a line. Defaults
+            to ','.
+        ignore (str): The text to be ignored. Defaults to '#'.
+        format (str): The format of the annotation. Defaults to 'img, text'.
+        encoding (str): The encoding of the annotation file. Defaults to
+            'utf-8-sig'.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+        base_name (bool): Whether to use the basename of the image path as the
+            image name. Defaults to False.
+        remove_strs (List[str], Optional): Used to remove redundant strings in
+            the transcription. Defaults to ['"'].
+    """
+
+    def parse_files(self, img_dir: str, ann_path: str) -> List:
+        """Parse annotations."""
+        assert isinstance(ann_path, str)
+        samples = list()
+        for anno in self.loader(
+                file_path=ann_path,
+                format=self.format,
+                encoding=self.encoding,
+                separator=self.sep):
+            text = osp.basename(anno['img']).split('_')[1]
+            if self.remove_strs is not None:
+                for strs in self.remove_strs:
+                    text = text.replace(strs, '')
+            if text == self.ignore:
+                continue
+            img_name = anno['img']
+            samples.append((osp.join(img_dir, img_name), text))
+
+        return samples
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/naf_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/naf_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..988b4b453b1aba44dca342a4be1f0258f583ca08
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/naf_parser.py
@@ -0,0 +1,106 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+from typing import List, Tuple
+
+import numpy as np
+
+from mmocr.registry import DATA_PARSERS
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class NAFAnnParser(BaseParser):
+    """NAF dataset parser.
+
+    The original annotation format of this dataset is stored in json files,
+    which has the following keys that will be used here:
+        - 'textBBs': List of text bounding box objects
+            - 'poly_points': list of [x,y] pairs, the box corners going
+                top-left,top-right,bottom-right,bottom-left
+            - 'id': id of the textBB, used to match with the text
+        - 'transcriptions': Dict of transcription objects, use the 'id' key
+            to match with the textBB.
+
+    Some special characters are used in the transcription:
+    "«text»" indicates that "text" had a strikethrough
+    "¿" indicates the transcriber could not read a character
+    "§" indicates the whole line or word was illegible
+    "" (empty string) is if the field was blank
+
+    Args:
+        ignore (list(str)): The text of the ignored instances. Default: ['#'].
+        det (bool): Whether to parse the detection annotation. Default: True.
+            If False, the parser will consider special case in NAF dataset
+            where the transcription is not available.
+    """
+
+    def __init__(self,
+                 ignore: List[str] = ['#'],
+                 det: bool = True,
+                 **kwargs) -> None:
+        self.ignore = ignore
+        self.det = det
+        super().__init__(**kwargs)
+
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+        """Convert single annotation."""
+        instances = list()
+        for poly, text in self.loader(ann_path):
+            instances.append(
+                dict(poly=poly, text=text, ignore=text in self.ignore))
+
+        return img_path, instances
+
+    def loader(self, file_path: str) -> str:
+        """Load the annotation of the NAF dataset.
+
+        Args:
+            file_path (str): Path to the json file
+
+        Retyrb:
+            str: Complete annotation of the json file
+        """
+        with open(file_path, 'r') as f:
+            data = json.load(f)
+
+        # 'textBBs' contains the printed texts of the table while 'fieldBBs'
+        #  contains the text filled by human.
+        for box_type in ['textBBs', 'fieldBBs']:
+            if not self.det:
+                # 'textBBs' is only used for detection task.
+                if box_type == 'textBBs':
+                    continue
+            for anno in data[box_type]:
+                # Skip blanks
+                if self.det:
+                    if box_type == 'fieldBBs':
+                        if anno['type'] == 'blank':
+                            continue
+                    poly = np.array(anno['poly_points']).reshape(
+                        1, 8)[0].tolist()
+                    # Since detection task only need poly, we can skip the
+                    # transcription part that can be empty.
+                    text = None
+                else:
+                    # For tasks that need transcription, NAF dataset has
+                    # serval special cases:
+                    # 1. The transcription for the whole image is not
+                    # available.
+                    # 2. The transcription for the certain text is not
+                    # available.
+                    # 3. If the length of the transcription is 0, it should
+                    # be ignored.
+                    if 'transcriptions' not in data.keys():
+                        break
+                    if anno['id'] not in data['transcriptions'].keys():
+                        continue
+                    text = data['transcriptions'][anno['id']]
+                    text = text.strip(
+                        '\u202a')  # Remove unicode control character
+                    text = text.replace('»', '').replace(
+                        '«', '')  # Remove strikethrough flag
+                    if len(text) == 0:
+                        continue
+                    poly = np.array(anno['poly_points']).reshape(
+                        1, 8)[0].tolist()
+                yield poly, text
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/sroie_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/sroie_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..f89793e8c4aeed43d1cf462e8041cf38c8b08af3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/sroie_parser.py
@@ -0,0 +1,74 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List, Optional, Tuple
+
+from mmocr.registry import DATA_PARSERS
+from mmocr.utils import bbox2poly
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class SROIETextDetAnnParser(BaseParser):
+    """SROIE Txt Format Text Detection Annotation Parser.
+
+    The original annotation format of this dataset is stored in txt files,
+    which is formed as the following format:
+        x1, y1, x2, y2, x3, y3, x4, y4, transcription
+
+    Args:
+        separator (str): The separator between each element in a line. Defaults
+            to ','.
+        ignore (str): The text to be ignored. Defaults to '###'.
+        format (str): The format of the annotation. Defaults to
+            'x1,y1,x2,y2,x3,y3,x4,trans'.
+        encoding (str): The encoding of the annotation file. Defaults to
+            'utf-8-sig'.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+        remove_strs (List[str], Optional): Used to remove redundant strings in
+            the transcription. Defaults to None.
+        mode (str, optional): The mode of the box converter. Supported modes
+            are 'xywh' and 'xyxy'. Defaults to None.
+    """
+
+    def __init__(self,
+                 split: str,
+                 separator: str = ',',
+                 ignore: str = '###',
+                 format: str = 'x1,y1,x2,y2,x3,y3,x4,y4,trans',
+                 encoding: str = 'utf-8-sig',
+                 nproc: int = 1,
+                 remove_strs: Optional[List[str]] = None,
+                 mode: str = None) -> None:
+        self.sep = separator
+        self.format = format
+        self.encoding = encoding
+        self.ignore = ignore
+        self.mode = mode
+        self.remove_strs = remove_strs
+        super().__init__(nproc=nproc, split=split)
+
+    def parse_file(self, img_path: str, ann_path: str) -> Tuple:
+        """Parse single annotation."""
+        instances = list()
+        try:
+            # there might be some illegal symbols in the annotation
+            # which cannot be parsed by loader
+            for anno in self.loader(ann_path, self.sep, self.format,
+                                    self.encoding):
+                anno = list(anno.values())
+                if self.remove_strs is not None:
+                    for strs in self.remove_strs:
+                        for i in range(len(anno)):
+                            if strs in anno[i]:
+                                anno[i] = anno[i].replace(strs, '')
+                poly = list(map(float, anno[0:-1]))
+                if self.mode is not None:
+                    poly = bbox2poly(poly, self.mode)
+                    poly = poly.tolist()
+                text = anno[-1]
+                instances.append(
+                    dict(poly=poly, text=text, ignore=text == self.ignore))
+        except Exception:
+            pass
+
+        return img_path, instances
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/svt_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/svt_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..553f46fb0f83c6b0b8d65479de6c2f6d597c64a3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/svt_parser.py
@@ -0,0 +1,62 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import xml.etree.ElementTree as ET
+from typing import List, Tuple
+
+from mmocr.registry import DATA_PARSERS
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class SVTTextDetAnnParser(BaseParser):
+    """SVT Text Detection Parser.
+
+    Args:
+        data_root (str): The root of the dataset. Defaults to None.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+    """
+
+    def parse_files(self, img_dir: str, ann_path: str) -> List:
+        """Parse annotations."""
+        assert isinstance(ann_path, str)
+        samples = list()
+        for img_name, instance in self.loader(ann_path):
+            samples.append((osp.join(img_dir,
+                                     osp.basename(img_name)), instance))
+
+        return samples
+
+    def loader(self, file_path: str) -> Tuple[str, List]:
+        """Load annotation from SVT xml format file. See annotation example in
+        dataset_zoo/svt/sample_anno.md.
+
+        Args:
+            file_path (str): The path of the annotation file.
+
+        Returns:
+            Tuple[str, List]: The image name and the annotation list.
+
+        Yields:
+            Iterator[Tuple[str, List]]: The image name and the annotation list.
+        """
+        tree = ET.parse(file_path)
+        root = tree.getroot()
+        for image in root.findall('image'):
+            image_name = image.find('imageName').text
+            instances = list()
+            for rectangle in image.find('taggedRectangles'):
+                x = int(rectangle.get('x'))
+                y = int(rectangle.get('y'))
+                w = int(rectangle.get('width'))
+                h = int(rectangle.get('height'))
+                # The text annotation of this dataset is not case sensitive.
+                # All of the texts were labeled as upper case. We convert them
+                # to lower case for convenience.
+                text = rectangle.find('tag').text.lower()
+                instances.append(
+                    dict(
+                        poly=[x, y, x + w, y, x + w, y + h, x, y + h],
+                        text=text,
+                        ignore=False))
+            yield image_name, instances
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/synthtext_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/synthtext_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..0764e0d8f1f5b00bdc7d2c8210b24d8bb2b87a53
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/synthtext_parser.py
@@ -0,0 +1,172 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List, Optional, Tuple, Union
+
+import numpy as np
+from mmengine import track_parallel_progress
+from scipy.io import loadmat
+
+from mmocr.utils import is_type_list
+from ..data_preparer import DATA_PARSERS
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class SynthTextAnnParser(BaseParser):
+    """SynthText Text Detection Annotation Parser.
+
+    Args:
+        split (str): The split of the dataset. It is usually set automatically
+            and users do not need to set it manually in config file in most
+            cases.
+        nproc (int): Number of processes to process the data. Defaults to 1.
+            It is usually set automatically and users do not need to set it
+            manually in config file in most cases.
+        separator (str): The separator between each element in a line. Defaults
+            to ','.
+        ignore (str): The text to be ignored. Defaults to '###'.
+        format (str): The format of the annotation. Defaults to
+            'x1,y1,x2,y2,x3,y3,x4,trans'.
+        encoding (str): The encoding of the annotation file. Defaults to
+            'utf-8-sig'.
+        remove_strs (List[str], Optional): Used to remove redundant strings in
+            the transcription. Defaults to None.
+        mode (str, optional): The mode of the box converter. Supported modes
+            are 'xywh' and 'xyxy'. Defaults to None.
+    """
+
+    def __init__(self,
+                 split: str,
+                 nproc: int,
+                 separator: str = ',',
+                 ignore: str = '###',
+                 format: str = 'x1,y1,x2,y2,x3,y3,x4,y4,trans',
+                 encoding: str = 'utf-8',
+                 remove_strs: Optional[List[str]] = None,
+                 mode: str = None) -> None:
+        self.sep = separator
+        self.format = format
+        self.encoding = encoding
+        self.ignore = ignore
+        self.mode = mode
+        self.remove_strs = remove_strs
+        super().__init__(split=split, nproc=nproc)
+
+    def _trace_boundary(self, char_boxes: List[np.ndarray]) -> np.ndarray:
+        """Trace the boundary point of text.
+
+        Args:
+            char_boxes (list[ndarray]): The char boxes for one text. Each
+                element is 4x2 ndarray.
+
+        Returns:
+            ndarray: The boundary point sets with size nx2.
+        """
+        assert is_type_list(char_boxes, np.ndarray)
+
+        # from top left to to right
+        p_top = [box[0:2] for box in char_boxes]
+        # from bottom right to bottom left
+        p_bottom = [
+            char_boxes[idx][[2, 3], :]
+            for idx in range(len(char_boxes) - 1, -1, -1)
+        ]
+
+        p = p_top + p_bottom
+
+        boundary = np.concatenate(p).astype(int)
+
+        return boundary
+
+    def _match_bbox_char_str(self, bboxes: np.ndarray, char_bboxes: np.ndarray,
+                             strs: np.ndarray
+                             ) -> Tuple[List[np.ndarray], List[str]]:
+        """Match the bboxes, char bboxes, and strs.
+
+        Args:
+            bboxes (ndarray): The text boxes of size (2, 4, num_box).
+            char_bboxes (ndarray): The char boxes of size (2, 4, num_char_box).
+            strs (ndarray): The string of size (num_strs,)
+
+        Returns:
+            Tuple(List[ndarray], List[str]): Polygon & word list.
+        """
+        assert isinstance(bboxes, np.ndarray)
+        assert isinstance(char_bboxes, np.ndarray)
+        assert isinstance(strs, np.ndarray)
+        # bboxes = bboxes.astype(np.int32)
+        char_bboxes = char_bboxes.astype(np.int32)
+
+        if len(char_bboxes.shape) == 2:
+            char_bboxes = np.expand_dims(char_bboxes, axis=2)
+        char_bboxes = np.transpose(char_bboxes, (2, 1, 0))
+        num_boxes = 1 if len(bboxes.shape) == 2 else bboxes.shape[-1]
+
+        poly_charbox_list = [[] for _ in range(num_boxes)]
+
+        words = []
+        for line in strs:
+            words += line.split()
+        words_len = [len(w) for w in words]
+        words_end_inx = np.cumsum(words_len)
+        start_inx = 0
+        for word_inx, end_inx in enumerate(words_end_inx):
+            for char_inx in range(start_inx, end_inx):
+                poly_charbox_list[word_inx].append(char_bboxes[char_inx])
+            start_inx = end_inx
+
+        for box_inx in range(num_boxes):
+            assert len(poly_charbox_list[box_inx]) > 0
+
+        poly_boundary_list = []
+        for item in poly_charbox_list:
+            boundary = np.ndarray((0, 2))
+            if len(item) > 0:
+                boundary = self._trace_boundary(item)
+            poly_boundary_list.append(boundary)
+
+        return poly_boundary_list, words
+
+    def parse_files(self, img_paths: Union[List[str], str],
+                    ann_paths: Union[List[str], str]) -> List[Tuple]:
+        """Convert annotations to MMOCR format.
+
+        Args:
+            img_paths (str or list[str]): the list of image paths or the
+                directory of the images.
+            ann_paths (str or list[str]): the list of annotation paths or the
+                path of the annotation file which contains all the annotations.
+
+        Returns:
+            List[Tuple]: A list of a tuple of (image_path, instances).
+
+            - img_path (str): The path of image file, which can be read
+              directly by opencv.
+            - instance: instance is a list of dict containing parsed
+              annotations, which should contain the following keys:
+
+              - 'poly' or 'box' (textdet or textspotting)
+              - 'text' (textspotting or textrecog)
+              - 'ignore' (all task)
+        """
+        assert isinstance(ann_paths, str)
+        gt = loadmat(ann_paths)
+        self.img_dir = img_paths
+        samples = track_parallel_progress(
+            self.parse_file,
+            list(
+                zip(gt['imnames'][0], gt['wordBB'][0], gt['charBB'][0],
+                    gt['txt'][0])),
+            nproc=self.nproc)
+        return samples
+
+    def parse_file(self, annotation: Tuple) -> Tuple:
+        """Parse single annotation."""
+        img_file, wordBB, charBB, txt = annotation
+        polys_list, word_list = self._match_bbox_char_str(wordBB, charBB, txt)
+
+        instances = list()
+        for poly, word in zip(polys_list, word_list):
+            instances.append(
+                dict(poly=poly.flatten().tolist(), text=word, ignore=False))
+        return osp.join(self.img_dir, img_file[0]), instances
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/totaltext_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/totaltext_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..2255f2f1b1abb01601dde8c33af8cf4732340938
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/totaltext_parser.py
@@ -0,0 +1,99 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import re
+from typing import Dict, Tuple
+
+import yaml
+
+from mmocr.registry import DATA_PARSERS
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class TotaltextTextDetAnnParser(BaseParser):
+    """TotalText Text Detection Parser.
+
+    The original annotation format of this dataset is stored in txt files,
+    which is formed as the following format:
+        x: [[x1 x2 x3 ... xn]], y: [[y1 y2 y3 ... yn]],
+        ornt: [u'c'], transcriptions: [u'transcription']
+
+    Args:
+        data_root (str): Path to the dataset root.
+        ignore (str): The text of the ignored instances. Default: '#'.
+        nproc (int): Number of processes to load the data. Default: 1.
+    """
+
+    def __init__(self, ignore: str = '#', **kwargs) -> None:
+        self.ignore = ignore
+        super().__init__(**kwargs)
+
+    def parse_file(self, img_path: str, ann_path: str) -> Dict:
+        """Convert single annotation."""
+        instances = list()
+        for poly, text in self.loader(ann_path):
+            instances.append(
+                dict(poly=poly, text=text, ignore=text == self.ignore))
+
+        return img_path, instances
+
+    def loader(self, file_path: str) -> str:
+        """The annotation of the totaltext dataset may be stored in multiple
+        lines, this loader is designed for this special case.
+
+        Args:
+            file_path (str): Path to the txt file
+
+        Yield:
+            str: Complete annotation of the txt file
+        """
+
+        def parsing_line(line: str) -> Tuple:
+            """Parsing a line of the annotation.
+
+            Args:
+                line (str): A line of the annotation.
+
+            Returns:
+                Tuple: A tuple of (polygon, transcription).
+            """
+            line = '{' + line.replace('[[', '[').replace(']]', ']') + '}'
+            ann_dict = re.sub('([0-9]) +([0-9])', r'\1,\2', line)
+            ann_dict = re.sub('([0-9]) +([ 0-9])', r'\1,\2', ann_dict)
+            ann_dict = re.sub('([0-9]) -([0-9])', r'\1,-\2', ann_dict)
+            ann_dict = ann_dict.replace("[u',']", "[u'#']")
+            ann_dict = yaml.safe_load(ann_dict)
+
+            # polygon
+            xs, ys = ann_dict['x'], ann_dict['y']
+            poly = []
+            for x, y in zip(xs, ys):
+                poly.append(x)
+                poly.append(y)
+            # text
+            text = ann_dict['transcriptions']
+            if len(text) == 0:
+                text = '#'
+            else:
+                word = text[0]
+                if len(text) > 1:
+                    for ann_word in text[1:]:
+                        word += ',' + ann_word
+                text = str(eval(word))
+
+            return poly, text
+
+        with open(file_path, 'r') as f:
+            for idx, line in enumerate(f):
+                line = line.strip()
+                if idx == 0:
+                    tmp_line = line
+                    continue
+                if not line.startswith('x:'):
+                    tmp_line += ' ' + line
+                    continue
+                complete_line = tmp_line
+                tmp_line = line
+                yield parsing_line(complete_line)
+
+            if tmp_line != '':
+                yield parsing_line(tmp_line)
diff --git a/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/wildreceipt_parser.py b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/wildreceipt_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..22a131888d06db41d095c27b0ab1fe434957188b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/preparers/parsers/wildreceipt_parser.py
@@ -0,0 +1,91 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os.path as osp
+from typing import Dict
+
+from mmocr.registry import DATA_PARSERS
+from mmocr.utils import list_from_file
+from .base import BaseParser
+
+
+@DATA_PARSERS.register_module()
+class WildreceiptTextDetAnnParser(BaseParser):
+    """Wildreceipt Text Detection Parser.
+
+    The original annotation format of this dataset is stored in txt files,
+    which is formed as the following json line format:
+        {"file_name": "xxx/xxx/xx/xxxx.jpeg",
+        "height": 1200,
+        "width": 1600,
+        "annotations": [
+            "box": [x1, y1, x2, y2, x3, y3, x4, y4],
+            "text": "xxx",
+            "label": 25,
+        ]}
+
+    Args:
+        data_root (str): The root path of the dataset.
+        ignore (int): The label to be ignored. Defaults to 0.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+    """
+
+    def __init__(self, ignore: int = 0, **kwargs) -> None:
+        self.ignore = ignore
+        super().__init__(**kwargs)
+
+    def parse_files(self, img_dir: str, ann_path) -> Dict:
+        """Convert single annotation."""
+        closeset_lines = list_from_file(ann_path)
+        samples = list()
+        for line in closeset_lines:
+            instances = list()
+            line = json.loads(line)
+            img_file = osp.join(img_dir, osp.basename(line['file_name']))
+            for anno in line['annotations']:
+                poly = anno['box']
+                text = anno['text']
+                label = anno['label']
+                instances.append(
+                    dict(poly=poly, text=text, ignore=label == self.ignore))
+            samples.append((img_file, instances))
+
+        return samples
+
+
+@DATA_PARSERS.register_module()
+class WildreceiptKIEAnnParser(BaseParser):
+    """Wildreceipt KIE Parser.
+
+    The original annotation format of this dataset is stored in txt files,
+    which is formed as the following json line format:
+        {"file_name": "xxx/xxx/xx/xxxx.jpeg",
+        "height": 1200,
+        "width": 1600,
+        "annotations": [
+            "box": [x1, y1, x2, y2, x3, y3, x4, y4],
+            "text": "xxx",
+            "label": 25,
+        ]}
+
+    Args:
+        ignore (int): The label to be ignored. Defaults to 0.
+        nproc (int): The number of processes to parse the annotation. Defaults
+            to 1.
+    """
+
+    def __init__(self, ignore: int = 0, **kwargs) -> None:
+        self.ignore = ignore
+        super().__init__(**kwargs)
+
+    def parse_files(self, img_dir: str, ann_path: str) -> Dict:
+        """Convert single annotation."""
+        closeset_lines = list_from_file(ann_path)
+        samples = list()
+        for line in closeset_lines:
+            json_line = json.loads(line)
+            img_file = osp.join(img_dir, osp.basename(json_line['file_name']))
+            json_line['file_name'] = img_file
+            samples.append(json.dumps(json_line))
+
+        return samples
diff --git a/mmocr-dev-1.x/mmocr/datasets/recog_lmdb_dataset.py b/mmocr-dev-1.x/mmocr/datasets/recog_lmdb_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..88512c62a7674cc61804e6b420d38a2173a5af51
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/recog_lmdb_dataset.py
@@ -0,0 +1,179 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Any, Callable, List, Optional, Sequence, Tuple, Union
+
+import mmcv
+from mmengine.dataset import BaseDataset
+
+from mmocr.registry import DATASETS
+
+
+@DATASETS.register_module()
+class RecogLMDBDataset(BaseDataset):
+    r"""RecogLMDBDataset for text recognition.
+
+    The annotation format should be in lmdb format. The lmdb file should
+    contain three keys: 'num-samples', 'label-xxxxxxxxx' and 'image-xxxxxxxxx',
+    where 'xxxxxxxxx' is the index of the image. The value of 'num-samples' is
+    the total number of images. The value of 'label-xxxxxxx' is the text label
+    of the image, and the value of 'image-xxxxxxx' is the image data.
+
+    following keys:
+    Each item fetched from this dataset will be a dict containing the
+    following keys:
+
+        - img (ndarray): The loaded image.
+        - img_path (str): The image key.
+        - instances (list[dict]): The list of annotations for the image.
+
+    Args:
+        ann_file (str): Annotation file path. Defaults to ''.
+        img_color_type (str): The flag argument for :func:``mmcv.imfrombytes``,
+            which determines how the image bytes will be parsed. Defaults to
+            'color'.
+        metainfo (dict, optional): Meta information for dataset, such as class
+            information. Defaults to None.
+        data_root (str): The root directory for ``data_prefix`` and
+            ``ann_file``. Defaults to ''.
+        data_prefix (dict): Prefix for training data. Defaults to
+            ``dict(img_path='')``.
+        filter_cfg (dict, optional): Config for filter data. Defaults to None.
+        indices (int or Sequence[int], optional): Support using first few
+            data in annotation file to facilitate training/testing on a smaller
+            dataset. Defaults to None which means using all ``data_infos``.
+        serialize_data (bool, optional): Whether to hold memory using
+            serialized objects, when enabled, data loader workers can use
+            shared RAM from master process instead of making a copy. Defaults
+            to True.
+        pipeline (list, optional): Processing pipeline. Defaults to [].
+        test_mode (bool, optional): ``test_mode=True`` means in test phase.
+            Defaults to False.
+        lazy_init (bool, optional): Whether to load annotation during
+            instantiation. In some cases, such as visualization, only the meta
+            information of the dataset is needed, which is not necessary to
+            load annotation file. ``RecogLMDBDataset`` can skip load
+            annotations to save time by set ``lazy_init=False``.
+            Defaults to False.
+        max_refetch (int, optional): If ``RecogLMDBdataset.prepare_data`` get a
+            None img. The maximum extra number of cycles to get a valid
+            image. Defaults to 1000.
+    """
+
+    def __init__(
+        self,
+        ann_file: str = '',
+        img_color_type: str = 'color',
+        metainfo: Optional[dict] = None,
+        data_root: Optional[str] = '',
+        data_prefix: dict = dict(img_path=''),
+        filter_cfg: Optional[dict] = None,
+        indices: Optional[Union[int, Sequence[int]]] = None,
+        serialize_data: bool = True,
+        pipeline: List[Union[dict, Callable]] = [],
+        test_mode: bool = False,
+        lazy_init: bool = False,
+        max_refetch: int = 1000,
+    ) -> None:
+
+        super().__init__(
+            ann_file=ann_file,
+            metainfo=metainfo,
+            data_root=data_root,
+            data_prefix=data_prefix,
+            filter_cfg=filter_cfg,
+            indices=indices,
+            serialize_data=serialize_data,
+            pipeline=pipeline,
+            test_mode=test_mode,
+            lazy_init=lazy_init,
+            max_refetch=max_refetch)
+
+        self.color_type = img_color_type
+
+    def load_data_list(self) -> List[dict]:
+        """Load annotations from an annotation file named as ``self.ann_file``
+
+        Returns:
+            List[dict]: A list of annotation.
+        """
+        if not hasattr(self, 'env'):
+            self._make_env()
+            with self.env.begin(write=False) as txn:
+                self.total_number = int(
+                    txn.get(b'num-samples').decode('utf-8'))
+
+        data_list = []
+        with self.env.begin(write=False) as txn:
+            for i in range(self.total_number):
+                idx = i + 1
+                label_key = f'label-{idx:09d}'
+                img_key = f'image-{idx:09d}'
+                text = txn.get(label_key.encode('utf-8')).decode('utf-8')
+                line = [img_key, text]
+                data_list.append(self.parse_data_info(line))
+        return data_list
+
+    def parse_data_info(self,
+                        raw_anno_info: Tuple[Optional[str],
+                                             str]) -> Union[dict, List[dict]]:
+        """Parse raw annotation to target format.
+
+        Args:
+            raw_anno_info (str): One raw data information loaded
+                from ``ann_file``.
+
+        Returns:
+            (dict): Parsed annotation.
+        """
+        data_info = {}
+        img_key, text = raw_anno_info
+        data_info['img_key'] = img_key
+        data_info['instances'] = [dict(text=text)]
+        return data_info
+
+    def prepare_data(self, idx) -> Any:
+        """Get data processed by ``self.pipeline``.
+
+        Args:
+            idx (int): The index of ``data_info``.
+
+        Returns:
+            Any: Depends on ``self.pipeline``.
+        """
+        data_info = self.get_data_info(idx)
+        with self.env.begin(write=False) as txn:
+            img_bytes = txn.get(data_info['img_key'].encode('utf-8'))
+            if img_bytes is None:
+                return None
+            data_info['img'] = mmcv.imfrombytes(
+                img_bytes, flag=self.color_type)
+        return self.pipeline(data_info)
+
+    def _make_env(self):
+        """Create lmdb environment from self.ann_file and save it to
+        ``self.env``.
+
+        Returns:
+            Lmdb environment.
+        """
+        try:
+            import lmdb
+        except ImportError:
+            raise ImportError(
+                'Please install lmdb to enable RecogLMDBDataset.')
+        if hasattr(self, 'env'):
+            return
+
+        self.env = lmdb.open(
+            self.ann_file,
+            max_readers=1,
+            readonly=True,
+            lock=False,
+            readahead=False,
+            meminit=False,
+        )
+
+    def close(self):
+        """Close lmdb environment."""
+        if hasattr(self, 'env'):
+            self.env.close()
+            del self.env
diff --git a/mmocr-dev-1.x/mmocr/datasets/recog_text_dataset.py b/mmocr-dev-1.x/mmocr/datasets/recog_text_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..25cc54ff8e3639fc5a3ba3182749d0920bfc0a8b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/recog_text_dataset.py
@@ -0,0 +1,134 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Callable, List, Optional, Sequence, Union
+
+from mmengine.dataset import BaseDataset
+from mmengine.fileio import list_from_file
+
+from mmocr.registry import DATASETS, TASK_UTILS
+
+
+@DATASETS.register_module()
+class RecogTextDataset(BaseDataset):
+    r"""RecogTextDataset for text recognition.
+
+    The annotation format can be both in jsonl and txt. If the annotation file
+    is in jsonl format, it should be a list of dicts. If the annotation file
+    is in txt format, it should be a list of lines.
+
+    The annotation formats are shown as follows.
+    - txt format
+    .. code-block:: none
+
+        ``test_img1.jpg OpenMMLab``
+        ``test_img2.jpg MMOCR``
+
+    - jsonl format
+    .. code-block:: none
+
+        ``{"filename": "test_img1.jpg", "text": "OpenMMLab"}``
+        ``{"filename": "test_img2.jpg", "text": "MMOCR"}``
+
+    Args:
+        ann_file (str): Annotation file path. Defaults to ''.
+        backend_args (dict, optional): Arguments to instantiate the
+            prefix of uri corresponding backend. Defaults to None.
+        parse_cfg (dict, optional): Config of parser for parsing annotations.
+            Use ``LineJsonParser`` when the annotation file is in jsonl format
+            with keys of ``filename`` and ``text``. The keys in parse_cfg
+            should be consistent with the keys in jsonl annotations. The first
+            key in parse_cfg should be the key of the path in jsonl
+            annotations. The second key in parse_cfg should be the key of the
+            text in jsonl Use ``LineStrParser`` when the annotation file is in
+            txt format. Defaults to
+            ``dict(type='LineJsonParser', keys=['filename', 'text'])``.
+        metainfo (dict, optional): Meta information for dataset, such as class
+            information. Defaults to None.
+        data_root (str): The root directory for ``data_prefix`` and
+            ``ann_file``. Defaults to ''.
+        data_prefix (dict): Prefix for training data. Defaults to
+            ``dict(img_path='')``.
+        filter_cfg (dict, optional): Config for filter data. Defaults to None.
+        indices (int or Sequence[int], optional): Support using first few
+            data in annotation file to facilitate training/testing on a smaller
+            dataset. Defaults to None which means using all ``data_infos``.
+        serialize_data (bool, optional): Whether to hold memory using
+            serialized objects, when enabled, data loader workers can use
+            shared RAM from master process instead of making a copy. Defaults
+            to True.
+        pipeline (list, optional): Processing pipeline. Defaults to [].
+        test_mode (bool, optional): ``test_mode=True`` means in test phase.
+            Defaults to False.
+        lazy_init (bool, optional): Whether to load annotation during
+            instantiation. In some cases, such as visualization, only the meta
+            information of the dataset is needed, which is not necessary to
+            load annotation file. ``RecogTextDataset`` can skip load
+            annotations to save time by set ``lazy_init=False``. Defaults to
+            False.
+        max_refetch (int, optional): If ``RecogTextDataset.prepare_data`` get a
+            None img. The maximum extra number of cycles to get a valid
+            image. Defaults to 1000.
+    """
+
+    def __init__(self,
+                 ann_file: str = '',
+                 backend_args=None,
+                 parser_cfg: Optional[dict] = dict(
+                     type='LineJsonParser', keys=['filename', 'text']),
+                 metainfo: Optional[dict] = None,
+                 data_root: Optional[str] = '',
+                 data_prefix: dict = dict(img_path=''),
+                 filter_cfg: Optional[dict] = None,
+                 indices: Optional[Union[int, Sequence[int]]] = None,
+                 serialize_data: bool = True,
+                 pipeline: List[Union[dict, Callable]] = [],
+                 test_mode: bool = False,
+                 lazy_init: bool = False,
+                 max_refetch: int = 1000) -> None:
+
+        self.parser = TASK_UTILS.build(parser_cfg)
+        self.backend_args = backend_args
+        super().__init__(
+            ann_file=ann_file,
+            metainfo=metainfo,
+            data_root=data_root,
+            data_prefix=data_prefix,
+            filter_cfg=filter_cfg,
+            indices=indices,
+            serialize_data=serialize_data,
+            pipeline=pipeline,
+            test_mode=test_mode,
+            lazy_init=lazy_init,
+            max_refetch=max_refetch)
+
+    def load_data_list(self) -> List[dict]:
+        """Load annotations from an annotation file named as ``self.ann_file``
+
+        Returns:
+            List[dict]: A list of annotation.
+        """
+        data_list = []
+        raw_anno_infos = list_from_file(
+            self.ann_file, backend_args=self.backend_args)
+        for raw_anno_info in raw_anno_infos:
+            data_list.append(self.parse_data_info(raw_anno_info))
+        return data_list
+
+    def parse_data_info(self, raw_anno_info: str) -> dict:
+        """Parse raw annotation to target format.
+
+        Args:
+            raw_anno_info (str): One raw data information loaded
+                from ``ann_file``.
+
+        Returns:
+            (dict): Parsed annotation.
+        """
+        data_info = {}
+        parsed_anno = self.parser(raw_anno_info)
+        img_path = osp.join(self.data_prefix['img_path'],
+                            parsed_anno[self.parser.keys[0]])
+
+        data_info['img_path'] = img_path
+        data_info['instances'] = [dict(text=parsed_anno[self.parser.keys[1]])]
+        return data_info
diff --git a/mmocr-dev-1.x/mmocr/datasets/samplers/__init__.py b/mmocr-dev-1.x/mmocr/datasets/samplers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..063a79cb1286282712d8530b87cdfa50ae06f71a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/samplers/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .batch_aug import BatchAugSampler
+
+__all__ = ['BatchAugSampler']
diff --git a/mmocr-dev-1.x/mmocr/datasets/samplers/batch_aug.py b/mmocr-dev-1.x/mmocr/datasets/samplers/batch_aug.py
new file mode 100644
index 0000000000000000000000000000000000000000..852fbc67fbbb5dc4a0c3c202a71a0b84f9c3832b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/samplers/batch_aug.py
@@ -0,0 +1,98 @@
+import math
+from typing import Iterator, Optional, Sized
+
+import torch
+from mmengine.dist import get_dist_info, sync_random_seed
+from torch.utils.data import Sampler
+
+from mmocr.registry import DATA_SAMPLERS
+
+
+@DATA_SAMPLERS.register_module()
+class BatchAugSampler(Sampler):
+    """Sampler that repeats the same data elements for num_repeats times. The
+    batch size should be divisible by num_repeats.
+
+    It ensures that different each
+    augmented version of a sample will be visible to a different process (GPU).
+    Heavily based on torch.utils.data.DistributedSampler.
+
+    This sampler was modified from
+    https://github.com/facebookresearch/deit/blob/0c4b8f60/samplers.py
+    Used in
+    Copyright (c) 2015-present, Facebook, Inc.
+
+    Args:
+        dataset (Sized): The dataset.
+        shuffle (bool): Whether shuffle the dataset or not. Defaults to True.
+        num_repeats (int): The repeat times of every sample. Defaults to 3.
+        seed (int, optional): Random seed used to shuffle the sampler if
+            :attr:`shuffle=True`. This number should be identical across all
+            processes in the distributed group. Defaults to None.
+    """
+
+    def __init__(self,
+                 dataset: Sized,
+                 shuffle: bool = True,
+                 num_repeats: int = 3,
+                 seed: Optional[int] = None):
+        rank, world_size = get_dist_info()
+        self.rank = rank
+        self.world_size = world_size
+
+        self.dataset = dataset
+        self.shuffle = shuffle
+
+        if seed is None:
+            seed = sync_random_seed()
+        self.seed = seed
+        self.epoch = 0
+        self.num_repeats = num_repeats
+
+        # The number of repeated samples in the rank
+        self.num_samples = math.ceil(
+            len(self.dataset) * num_repeats / world_size)
+        # The total number of repeated samples in all ranks.
+        self.total_size = self.num_samples * world_size
+        # The number of selected samples in the rank
+        self.num_selected_samples = math.ceil(len(self.dataset) / world_size)
+
+    def __iter__(self) -> Iterator[int]:
+        """Iterate the indices."""
+        # deterministically shuffle based on epoch and seed
+        if self.shuffle:
+            g = torch.Generator()
+            g.manual_seed(self.seed + self.epoch)
+            indices = torch.randperm(len(self.dataset), generator=g).tolist()
+        else:
+            indices = list(range(len(self.dataset)))
+
+        # produce repeats e.g. [0, 0, 0, 1, 1, 1, 2, 2, 2....]
+        indices = [x for x in indices for _ in range(self.num_repeats)]
+        # add extra samples to make it evenly divisible
+        indices = (indices *
+                   int(self.total_size / len(indices) + 1))[:self.total_size]
+        assert len(indices) == self.total_size
+
+        # subsample per rank
+        indices = indices[self.rank:self.total_size:self.world_size]
+        assert len(indices) == self.num_samples
+
+        # return up to num selected samples
+        return iter(indices)
+
+    def __len__(self) -> int:
+        """The number of samples in this rank."""
+        return self.num_selected_samples
+
+    def set_epoch(self, epoch: int) -> None:
+        """Sets the epoch for this sampler.
+
+        When :attr:`shuffle=True`, this ensures all replicas use a different
+        random ordering for each epoch. Otherwise, the next iteration of this
+        sampler will yield the same ordering.
+
+        Args:
+            epoch (int): Epoch number.
+        """
+        self.epoch = epoch
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/__init__.py b/mmocr-dev-1.x/mmocr/datasets/transforms/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..61a15ec9609c65edee438679ff7c68ff33aabcf6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/__init__.py
@@ -0,0 +1,27 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .adapters import MMDet2MMOCR, MMOCR2MMDet
+from .formatting import PackKIEInputs, PackTextDetInputs, PackTextRecogInputs
+from .loading import (InferencerLoader, LoadImageFromFile,
+                      LoadImageFromNDArray, LoadKIEAnnotations,
+                      LoadOCRAnnotations)
+from .ocr_transforms import (FixInvalidPolygon, RandomCrop, RandomRotate,
+                             RemoveIgnored, Resize)
+from .textdet_transforms import (BoundedScaleAspectJitter, RandomFlip,
+                                 ShortScaleAspectJitter, SourceImagePad,
+                                 TextDetRandomCrop, TextDetRandomCropFlip)
+from .textrecog_transforms import (CropHeight, ImageContentJitter, PadToWidth,
+                                   PyramidRescale, RescaleToHeight,
+                                   ReversePixels, TextRecogGeneralAug)
+from .wrappers import ConditionApply, ImgAugWrapper, TorchVisionWrapper
+
+__all__ = [
+    'LoadOCRAnnotations', 'RandomRotate', 'ImgAugWrapper', 'SourceImagePad',
+    'TextDetRandomCropFlip', 'PyramidRescale', 'TorchVisionWrapper', 'Resize',
+    'RandomCrop', 'TextDetRandomCrop', 'RandomCrop', 'PackTextDetInputs',
+    'PackTextRecogInputs', 'RescaleToHeight', 'PadToWidth',
+    'ShortScaleAspectJitter', 'RandomFlip', 'BoundedScaleAspectJitter',
+    'PackKIEInputs', 'LoadKIEAnnotations', 'FixInvalidPolygon', 'MMDet2MMOCR',
+    'MMOCR2MMDet', 'LoadImageFromFile', 'LoadImageFromNDArray', 'CropHeight',
+    'InferencerLoader', 'RemoveIgnored', 'ConditionApply', 'CropHeight',
+    'TextRecogGeneralAug', 'ImageContentJitter', 'ReversePixels'
+]
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/adapters.py b/mmocr-dev-1.x/mmocr/datasets/transforms/adapters.py
new file mode 100644
index 0000000000000000000000000000000000000000..370174727ade4117a4857e8ec72a8c70c7a8950e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/adapters.py
@@ -0,0 +1,121 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict
+
+from mmcv.transforms.base import BaseTransform
+from mmdet.structures.mask import PolygonMasks, bitmap_to_polygon
+
+from mmocr.registry import TRANSFORMS
+
+
+@TRANSFORMS.register_module()
+class MMDet2MMOCR(BaseTransform):
+    """Convert transforms's data format from MMDet to MMOCR.
+
+    Required Keys:
+
+    - gt_masks (PolygonMasks | BitmapMasks) (optional)
+    - gt_ignore_flags (np.bool) (optional)
+
+    Added Keys:
+
+    - gt_polygons (list[np.ndarray])
+    - gt_ignored (np.ndarray)
+    """
+
+    def transform(self, results: Dict) -> Dict:
+        """Convert MMDet's data format to MMOCR's data format.
+
+        Args:
+            results (Dict): Result dict containing the data to transform.
+
+        Returns:
+            (Dict): The transformed data.
+        """
+        # gt_masks -> gt_polygons
+        if 'gt_masks' in results.keys():
+            gt_polygons = []
+            gt_masks = results.pop('gt_masks')
+            if len(gt_masks) > 0:
+                # PolygonMasks
+                if isinstance(gt_masks[0], PolygonMasks):
+                    gt_polygons = [mask[0] for mask in gt_masks.masks]
+                # BitmapMasks
+                else:
+                    polygons = []
+                    for mask in gt_masks.masks:
+                        contours, _ = bitmap_to_polygon(mask)
+                        polygons += [
+                            contour.reshape(-1) for contour in contours
+                        ]
+                    # filter invalid polygons
+                    gt_polygons = []
+                    for polygon in polygons:
+                        if len(polygon) < 6:
+                            continue
+                        gt_polygons.append(polygon)
+
+            results['gt_polygons'] = gt_polygons
+        # gt_ignore_flags -> gt_ignored
+        if 'gt_ignore_flags' in results.keys():
+            gt_ignored = results.pop('gt_ignore_flags')
+            results['gt_ignored'] = gt_ignored
+
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class MMOCR2MMDet(BaseTransform):
+    """Convert transforms's data format from MMOCR to MMDet.
+
+    Required Keys:
+
+    - img_shape
+    - gt_polygons (List[ndarray]) (optional)
+    - gt_ignored (np.bool) (optional)
+
+    Added Keys:
+
+    - gt_masks (PolygonMasks | BitmapMasks) (optional)
+    - gt_ignore_flags (np.bool) (optional)
+
+    Args:
+        poly2mask (bool): Whether to convert mask to bitmap. Default: True.
+    """
+
+    def __init__(self, poly2mask: bool = False) -> None:
+        self.poly2mask = poly2mask
+
+    def transform(self, results: Dict) -> Dict:
+        """Convert MMOCR's data format to MMDet's data format.
+
+        Args:
+            results (Dict): Result dict containing the data to transform.
+
+        Returns:
+            (Dict): The transformed data.
+        """
+        # gt_polygons -> gt_masks
+        if 'gt_polygons' in results.keys():
+            gt_polygons = results.pop('gt_polygons')
+            gt_polygons = [[gt_polygon] for gt_polygon in gt_polygons]
+            gt_masks = PolygonMasks(gt_polygons, *results['img_shape'])
+
+            if self.poly2mask:
+                gt_masks = gt_masks.to_bitmap()
+
+            results['gt_masks'] = gt_masks
+        # gt_ignore_flags -> gt_ignored
+        if 'gt_ignored' in results.keys():
+            gt_ignored = results.pop('gt_ignored')
+            results['gt_ignore_flags'] = gt_ignored
+
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(poly2mask = {self.poly2mask})'
+        return repr_str
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/formatting.py b/mmocr-dev-1.x/mmocr/datasets/transforms/formatting.py
new file mode 100644
index 0000000000000000000000000000000000000000..b9b71437a6cc1de2396b17fe5c04909855f2ed86
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/formatting.py
@@ -0,0 +1,330 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import numpy as np
+import torch
+from mmcv.transforms import to_tensor
+from mmcv.transforms.base import BaseTransform
+from mmengine.structures import InstanceData, LabelData
+
+from mmocr.registry import TRANSFORMS
+from mmocr.structures import (KIEDataSample, TextDetDataSample,
+                              TextRecogDataSample)
+
+
+@TRANSFORMS.register_module()
+class PackTextDetInputs(BaseTransform):
+    """Pack the inputs data for text detection.
+
+    The type of outputs is `dict`:
+
+    - inputs: image converted to tensor, whose shape is (C, H, W).
+    - data_samples: Two components of ``TextDetDataSample`` will be updated:
+
+      - gt_instances (InstanceData): Depending on annotations, a subset of the
+        following keys will be updated:
+
+        - bboxes (torch.Tensor((N, 4), dtype=torch.float32)): The groundtruth
+          of bounding boxes in the form of [x1, y1, x2, y2]. Renamed from
+          'gt_bboxes'.
+        - labels (torch.LongTensor(N)): The labels of instances.
+          Renamed from 'gt_bboxes_labels'.
+        - polygons(list[np.array((2k,), dtype=np.float32)]): The
+          groundtruth of polygons in the form of [x1, y1,..., xk, yk]. Each
+          element in polygons may have different number of points. Renamed from
+          'gt_polygons'. Using numpy instead of tensor is that polygon usually
+          is not the output of model and operated on cpu.
+        - ignored (torch.BoolTensor((N,))): The flag indicating whether the
+          corresponding instance should be ignored. Renamed from
+          'gt_ignored'.
+        - texts (list[str]): The groundtruth texts. Renamed from 'gt_texts'.
+
+      - metainfo (dict): 'metainfo' is always populated. The contents of the
+        'metainfo' depends on ``meta_keys``. By default it includes:
+
+        - "img_path": Path to the image file.
+        - "img_shape": Shape of the image input to the network as a tuple
+          (h, w). Note that the image may be zero-padded afterward on the
+          bottom/right if the batch tensor is larger than this shape.
+        - "scale_factor": A tuple indicating the ratio of width and height
+          of the preprocessed image to the original one.
+        - "ori_shape": Shape of the preprocessed image as a tuple
+          (h, w).
+        - "pad_shape": Image shape after padding (if any Pad-related
+          transform involved) as a tuple (h, w).
+        - "flip": A boolean indicating if the image has been flipped.
+        - ``flip_direction``: the flipping direction.
+
+    Args:
+        meta_keys (Sequence[str], optional): Meta keys to be converted to
+            the metainfo of ``TextDetSample``. Defaults to ``('img_path',
+            'ori_shape', 'img_shape', 'scale_factor', 'flip',
+            'flip_direction')``.
+    """
+    mapping_table = {
+        'gt_bboxes': 'bboxes',
+        'gt_bboxes_labels': 'labels',
+        'gt_polygons': 'polygons',
+        'gt_texts': 'texts',
+        'gt_ignored': 'ignored'
+    }
+
+    def __init__(self,
+                 meta_keys=('img_path', 'ori_shape', 'img_shape',
+                            'scale_factor', 'flip', 'flip_direction')):
+        self.meta_keys = meta_keys
+
+    def transform(self, results: dict) -> dict:
+        """Method to pack the input data.
+
+        Args:
+            results (dict): Result dict from the data pipeline.
+
+        Returns:
+            dict:
+
+            - 'inputs' (obj:`torch.Tensor`): Data for model forwarding.
+            - 'data_samples' (obj:`DetDataSample`): The annotation info of the
+              sample.
+        """
+        packed_results = dict()
+        if 'img' in results:
+            img = results['img']
+            if len(img.shape) < 3:
+                img = np.expand_dims(img, -1)
+            # A simple trick to speedup formatting by 3-5 times when
+            # OMP_NUM_THREADS != 1
+            # Refer to https://github.com/open-mmlab/mmdetection/pull/9533
+            # for more details
+            if img.flags.c_contiguous:
+                img = to_tensor(img)
+                img = img.permute(2, 0, 1).contiguous()
+            else:
+                img = np.ascontiguousarray(img.transpose(2, 0, 1))
+                img = to_tensor(img)
+            packed_results['inputs'] = img
+
+        data_sample = TextDetDataSample()
+        instance_data = InstanceData()
+        for key in self.mapping_table.keys():
+            if key not in results:
+                continue
+            if key in ['gt_bboxes', 'gt_bboxes_labels', 'gt_ignored']:
+                instance_data[self.mapping_table[key]] = to_tensor(
+                    results[key])
+            else:
+                instance_data[self.mapping_table[key]] = results[key]
+        data_sample.gt_instances = instance_data
+
+        img_meta = {}
+        for key in self.meta_keys:
+            img_meta[key] = results[key]
+        data_sample.set_metainfo(img_meta)
+        packed_results['data_samples'] = data_sample
+
+        return packed_results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(meta_keys={self.meta_keys})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class PackTextRecogInputs(BaseTransform):
+    """Pack the inputs data for text recognition.
+
+    The type of outputs is `dict`:
+
+    - inputs: Image as a tensor, whose shape is (C, H, W).
+    - data_samples: Two components of ``TextRecogDataSample`` will be updated:
+
+      - gt_text (LabelData):
+
+        - item(str): The groundtruth of text. Rename from 'gt_texts'.
+
+      - metainfo (dict): 'metainfo' is always populated. The contents of the
+        'metainfo' depends on ``meta_keys``. By default it includes:
+
+        - "img_path": Path to the image file.
+        - "ori_shape":  Shape of the preprocessed image as a tuple
+          (h, w).
+        - "img_shape": Shape of the image input to the network as a tuple
+          (h, w). Note that the image may be zero-padded afterward on the
+          bottom/right if the batch tensor is larger than this shape.
+        - "valid_ratio": The proportion of valid (unpadded) content of image
+          on the x-axis. It defaults to 1 if not set in pipeline.
+
+    Args:
+        meta_keys (Sequence[str], optional): Meta keys to be converted to
+            the metainfo of ``TextRecogDataSampel``. Defaults to
+            ``('img_path', 'ori_shape', 'img_shape', 'pad_shape',
+            'valid_ratio')``.
+    """
+
+    def __init__(self,
+                 meta_keys=('img_path', 'ori_shape', 'img_shape', 'pad_shape',
+                            'valid_ratio')):
+        self.meta_keys = meta_keys
+
+    def transform(self, results: dict) -> dict:
+        """Method to pack the input data.
+
+        Args:
+            results (dict): Result dict from the data pipeline.
+
+        Returns:
+            dict:
+
+            - 'inputs' (obj:`torch.Tensor`): Data for model forwarding.
+            - 'data_samples' (obj:`TextRecogDataSample`): The annotation info
+                of the sample.
+        """
+        packed_results = dict()
+        if 'img' in results:
+            img = results['img']
+            if len(img.shape) < 3:
+                img = np.expand_dims(img, -1)
+            # A simple trick to speedup formatting by 3-5 times when
+            # OMP_NUM_THREADS != 1
+            # Refer to https://github.com/open-mmlab/mmdetection/pull/9533
+            # for more details
+            if img.flags.c_contiguous:
+                img = to_tensor(img)
+                img = img.permute(2, 0, 1).contiguous()
+            else:
+                img = np.ascontiguousarray(img.transpose(2, 0, 1))
+                img = to_tensor(img)
+            packed_results['inputs'] = img
+
+        data_sample = TextRecogDataSample()
+        gt_text = LabelData()
+
+        if results.get('gt_texts', None):
+            assert len(
+                results['gt_texts']
+            ) == 1, 'Each image sample should have one text annotation only'
+            gt_text.item = results['gt_texts'][0]
+        data_sample.gt_text = gt_text
+
+        img_meta = {}
+        for key in self.meta_keys:
+            if key == 'valid_ratio':
+                img_meta[key] = results.get('valid_ratio', 1)
+            else:
+                img_meta[key] = results[key]
+        data_sample.set_metainfo(img_meta)
+
+        packed_results['data_samples'] = data_sample
+
+        return packed_results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(meta_keys={self.meta_keys})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class PackKIEInputs(BaseTransform):
+    """Pack the inputs data for key information extraction.
+
+    The type of outputs is `dict`:
+
+    - inputs: image converted to tensor, whose shape is (C, H, W).
+    - data_samples: Two components of ``TextDetDataSample`` will be updated:
+
+      - gt_instances (InstanceData): Depending on annotations, a subset of the
+        following keys will be updated:
+
+        - bboxes (torch.Tensor((N, 4), dtype=torch.float32)): The groundtruth
+          of bounding boxes in the form of [x1, y1, x2, y2]. Renamed from
+          'gt_bboxes'.
+        - labels (torch.LongTensor(N)): The labels of instances.
+          Renamed from 'gt_bboxes_labels'.
+        - edge_labels (torch.LongTensor(N, N)): The edge labels.
+          Renamed from 'gt_edges_labels'.
+        - texts (list[str]): The groundtruth texts. Renamed from 'gt_texts'.
+
+      - metainfo (dict): 'metainfo' is always populated. The contents of the
+        'metainfo' depends on ``meta_keys``. By default it includes:
+
+        - "img_path": Path to the image file.
+        - "img_shape": Shape of the image input to the network as a tuple
+          (h, w). Note that the image may be zero-padded afterward on the
+          bottom/right if the batch tensor is larger than this shape.
+        - "scale_factor": A tuple indicating the ratio of width and height
+          of the preprocessed image to the original one.
+        - "ori_shape": Shape of the preprocessed image as a tuple
+          (h, w).
+
+    Args:
+        meta_keys (Sequence[str], optional): Meta keys to be converted to
+            the metainfo of ``TextDetSample``. Defaults to ``('img_path',
+            'ori_shape', 'img_shape', 'scale_factor', 'flip',
+            'flip_direction')``.
+    """
+    mapping_table = {
+        'gt_bboxes': 'bboxes',
+        'gt_bboxes_labels': 'labels',
+        'gt_edges_labels': 'edge_labels',
+        'gt_texts': 'texts',
+    }
+
+    def __init__(self, meta_keys=()):
+        self.meta_keys = meta_keys
+
+    def transform(self, results: dict) -> dict:
+        """Method to pack the input data.
+
+        Args:
+            results (dict): Result dict from the data pipeline.
+
+        Returns:
+            dict:
+
+            - 'inputs' (obj:`torch.Tensor`): Data for model forwarding.
+            - 'data_samples' (obj:`DetDataSample`): The annotation info of the
+              sample.
+        """
+        packed_results = dict()
+        if 'img' in results:
+            img = results['img']
+            if len(img.shape) < 3:
+                img = np.expand_dims(img, -1)
+            # A simple trick to speedup formatting by 3-5 times when
+            # OMP_NUM_THREADS != 1
+            # Refer to https://github.com/open-mmlab/mmdetection/pull/9533
+            # for more details
+            if img.flags.c_contiguous:
+                img = to_tensor(img)
+                img = img.permute(2, 0, 1).contiguous()
+            else:
+                img = np.ascontiguousarray(img.transpose(2, 0, 1))
+                img = to_tensor(img)
+            packed_results['inputs'] = img
+        else:
+            packed_results['inputs'] = torch.FloatTensor().reshape(0, 0, 0)
+
+        data_sample = KIEDataSample()
+        instance_data = InstanceData()
+        for key in self.mapping_table.keys():
+            if key not in results:
+                continue
+            if key in ['gt_bboxes', 'gt_bboxes_labels', 'gt_edges_labels']:
+                instance_data[self.mapping_table[key]] = to_tensor(
+                    results[key])
+            else:
+                instance_data[self.mapping_table[key]] = results[key]
+        data_sample.gt_instances = instance_data
+
+        img_meta = {}
+        for key in self.meta_keys:
+            img_meta[key] = results[key]
+        data_sample.set_metainfo(img_meta)
+        packed_results['data_samples'] = data_sample
+
+        return packed_results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(meta_keys={self.meta_keys})'
+        return repr_str
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/loading.py b/mmocr-dev-1.x/mmocr/datasets/transforms/loading.py
new file mode 100644
index 0000000000000000000000000000000000000000..e9a3af8189edb4159a4676c6401a0364981bc4d7
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/loading.py
@@ -0,0 +1,572 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import warnings
+from typing import Optional, Union
+
+import mmcv
+import mmengine.fileio as fileio
+import numpy as np
+from mmcv.transforms import BaseTransform
+from mmcv.transforms import LoadAnnotations as MMCV_LoadAnnotations
+from mmcv.transforms import LoadImageFromFile as MMCV_LoadImageFromFile
+
+from mmocr.registry import TRANSFORMS
+
+
+@TRANSFORMS.register_module()
+class LoadImageFromFile(MMCV_LoadImageFromFile):
+    """Load an image from file.
+
+    Required Keys:
+
+    - img_path
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - ori_shape
+
+    Args:
+        to_float32 (bool): Whether to convert the loaded image to a float32
+            numpy array. If set to False, the loaded image is an uint8 array.
+            Defaults to False.
+        color_type (str): The flag argument for :func:``mmcv.imfrombytes``.
+            Defaults to 'color'.
+        imdecode_backend (str): The image decoding backend type. The backend
+            argument for :func:``mmcv.imfrombytes``.
+            See :func:``mmcv.imfrombytes`` for details.
+            Defaults to 'cv2'.
+        file_client_args (dict): Arguments to instantiate a FileClient.
+            See :class:`mmengine.fileio.FileClient` for details.
+            Defaults to None. It will be deprecated in future. Please use
+            ``backend_args`` instead.
+            Deprecated in version 1.0.0rc6.
+        backend_args (dict, optional): Instantiates the corresponding file
+            backend. It may contain `backend` key to specify the file
+            backend. If it contains, the file backend corresponding to this
+            value will be used and initialized with the remaining values,
+            otherwise the corresponding file backend will be selected
+            based on the prefix of the file path. Defaults to None.
+            New in version 1.0.0rc6.
+        ignore_empty (bool): Whether to allow loading empty image or file path
+            not existent. Defaults to False.
+        min_size (int): The minimum size of the image to be loaded. If the
+            image is smaller than the minimum size, it will be regarded as a
+            broken image. Defaults to 0.
+    """
+
+    def __init__(
+        self,
+        to_float32: bool = False,
+        color_type: str = 'color',
+        imdecode_backend: str = 'cv2',
+        file_client_args: Optional[dict] = None,
+        min_size: int = 0,
+        ignore_empty: bool = False,
+        *,
+        backend_args: Optional[dict] = None,
+    ) -> None:
+        self.ignore_empty = ignore_empty
+        self.to_float32 = to_float32
+        self.color_type = color_type
+        self.imdecode_backend = imdecode_backend
+        self.min_size = min_size
+        self.file_client_args = file_client_args
+        self.backend_args = backend_args
+        if file_client_args is not None:
+            warnings.warn(
+                '"file_client_args" will be deprecated in future. '
+                'Please use "backend_args" instead', DeprecationWarning)
+            if backend_args is not None:
+                raise ValueError(
+                    '"file_client_args" and "backend_args" cannot be set '
+                    'at the same time.')
+
+            self.file_client_args = file_client_args.copy()
+        if backend_args is not None:
+            self.backend_args = backend_args.copy()
+
+    def transform(self, results: dict) -> Optional[dict]:
+        """Functions to load image.
+
+        Args:
+            results (dict): Result dict from :obj:``mmcv.BaseDataset``.
+
+        Returns:
+            dict: The dict contains loaded image and meta information.
+        """
+
+        filename = results['img_path']
+        try:
+            if getattr(self, 'file_client_args', None) is not None:
+                file_client = fileio.FileClient.infer_client(
+                    self.file_client_args, filename)
+                img_bytes = file_client.get(filename)
+            else:
+                img_bytes = fileio.get(
+                    filename, backend_args=self.backend_args)
+            img = mmcv.imfrombytes(
+                img_bytes, flag=self.color_type, backend=self.imdecode_backend)
+        except Exception as e:
+            if self.ignore_empty:
+                warnings.warn(f'Failed to load {filename} due to {e}')
+                return None
+            else:
+                raise e
+        if img is None or min(img.shape[:2]) < self.min_size:
+            if self.ignore_empty:
+                warnings.warn(f'Ignore broken image: {filename}')
+                return None
+            raise IOError(f'{filename} is broken')
+
+        if self.to_float32:
+            img = img.astype(np.float32)
+
+        results['img'] = img
+        results['img_shape'] = img.shape[:2]
+        results['ori_shape'] = img.shape[:2]
+        return results
+
+    def __repr__(self):
+        repr_str = (f'{self.__class__.__name__}('
+                    f'ignore_empty={self.ignore_empty}, '
+                    f'min_size={self.min_size}, '
+                    f'to_float32={self.to_float32}, '
+                    f"color_type='{self.color_type}', "
+                    f"imdecode_backend='{self.imdecode_backend}', ")
+
+        if self.file_client_args is not None:
+            repr_str += f'file_client_args={self.file_client_args})'
+        else:
+            repr_str += f'backend_args={self.backend_args})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class LoadImageFromNDArray(LoadImageFromFile):
+    """Load an image from ``results['img']``.
+
+    Similar with :obj:`LoadImageFromFile`, but the image has been loaded as
+    :obj:`np.ndarray` in ``results['img']``. Can be used when loading image
+    from webcam.
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    - img_path
+    - img_shape
+    - ori_shape
+
+    Args:
+        to_float32 (bool): Whether to convert the loaded image to a float32
+            numpy array. If set to False, the loaded image is an uint8 array.
+            Defaults to False.
+    """
+
+    def transform(self, results: dict) -> dict:
+        """Transform function to add image meta information.
+
+        Args:
+            results (dict): Result dict with Webcam read image in
+                ``results['img']``.
+
+        Returns:
+            dict: The dict contains loaded image and meta information.
+        """
+
+        img = results['img']
+        if self.to_float32:
+            img = img.astype(np.float32)
+        if self.color_type == 'grayscale':
+            img = mmcv.image.rgb2gray(img)
+        results['img'] = img
+        if results.get('img_path', None) is None:
+            results['img_path'] = None
+        results['img_shape'] = img.shape[:2]
+        results['ori_shape'] = img.shape[:2]
+        return results
+
+
+@TRANSFORMS.register_module()
+class InferencerLoader(BaseTransform):
+    """Load the image in Inferencer's pipeline.
+
+    Modified Keys:
+
+    - img
+    - img_path
+    - img_shape
+    - ori_shape
+
+    Args:
+        to_float32 (bool): Whether to convert the loaded image to a float32
+            numpy array. If set to False, the loaded image is an uint8 array.
+            Defaults to False.
+    """
+
+    def __init__(self, **kwargs) -> None:
+        super().__init__()
+        self.from_file = TRANSFORMS.build(
+            dict(type='LoadImageFromFile', **kwargs))
+        self.from_ndarray = TRANSFORMS.build(
+            dict(type='LoadImageFromNDArray', **kwargs))
+
+    def transform(self, single_input: Union[str, np.ndarray, dict]) -> dict:
+        """Transform function to add image meta information.
+
+        Args:
+            single_input (str or dict or np.ndarray): The raw input from
+                inferencer.
+
+        Returns:
+            dict: The dict contains loaded image and meta information.
+        """
+        if isinstance(single_input, str):
+            inputs = dict(img_path=single_input)
+        elif isinstance(single_input, np.ndarray):
+            inputs = dict(img=single_input)
+        elif isinstance(single_input, dict):
+            inputs = single_input
+        else:
+            raise NotImplementedError
+
+        if 'img' in inputs:
+            return self.from_ndarray(inputs)
+
+        return self.from_file(inputs)
+
+
+@TRANSFORMS.register_module()
+class LoadOCRAnnotations(MMCV_LoadAnnotations):
+    """Load and process the ``instances`` annotation provided by dataset.
+
+    The annotation format is as the following:
+
+    .. code-block:: python
+
+        {
+            'instances':
+            [
+                {
+                # List of 4 numbers representing the bounding box of the
+                # instance, in (x1, y1, x2, y2) order.
+                # used in text detection or text spotting tasks.
+                'bbox': [x1, y1, x2, y2],
+
+                # Label of instance, usually it's 0.
+                # used in text detection or text spotting tasks.
+                'bbox_label': 0,
+
+                # List of n numbers representing the polygon of the
+                # instance, in (xn, yn) order.
+                # used in text detection/ textspotter.
+                "polygon": [x1, y1, x2, y2, ... xn, yn],
+
+                # The flag indicating whether the instance should be ignored.
+                # used in text detection or text spotting tasks.
+                "ignore": False,
+
+                # The groundtruth of text.
+                # used in text recognition or text spotting tasks.
+                "text": 'tmp',
+                }
+            ]
+        }
+
+    After this module, the annotation has been changed to the format below:
+
+    .. code-block:: python
+
+        {
+            # In (x1, y1, x2, y2) order, float type. N is the number of bboxes
+            # in np.float32
+            'gt_bboxes': np.ndarray(N, 4)
+             # In np.int64 type.
+            'gt_bboxes_labels': np.ndarray(N, )
+            # In (x1, y1,..., xk, yk) order, float type.
+            # in list[np.float32]
+            'gt_polygons': list[np.ndarray(2k, )]
+             # In np.bool_ type.
+            'gt_ignored': np.ndarray(N, )
+             # In list[str]
+            'gt_texts': list[str]
+        }
+
+    Required Keys:
+
+    - instances
+
+      - bbox (optional)
+      - bbox_label (optional)
+      - polygon (optional)
+      - ignore (optional)
+      - text (optional)
+
+    Added Keys:
+
+    - gt_bboxes (np.float32)
+    - gt_bboxes_labels (np.int64)
+    - gt_polygons (list[np.float32])
+    - gt_ignored (np.bool_)
+    - gt_texts (list[str])
+
+    Args:
+        with_bbox (bool): Whether to parse and load the bbox annotation.
+            Defaults to False.
+        with_label (bool): Whether to parse and load the label annotation.
+            Defaults to False.
+        with_polygon (bool): Whether to parse and load the polygon annotation.
+            Defaults to False.
+        with_text (bool): Whether to parse and load the text annotation.
+            Defaults to False.
+    """
+
+    def __init__(self,
+                 with_bbox: bool = False,
+                 with_label: bool = False,
+                 with_polygon: bool = False,
+                 with_text: bool = False,
+                 **kwargs) -> None:
+        super().__init__(with_bbox=with_bbox, with_label=with_label, **kwargs)
+        self.with_polygon = with_polygon
+        self.with_text = with_text
+        self.with_ignore = with_bbox or with_polygon
+
+    def _load_ignore_flags(self, results: dict) -> None:
+        """Private function to load ignore annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+
+        Returns:
+            dict: The dict contains loaded ignore annotations.
+        """
+        gt_ignored = []
+        for instance in results['instances']:
+            gt_ignored.append(instance['ignore'])
+        results['gt_ignored'] = np.array(gt_ignored, dtype=np.bool_)
+
+    def _load_polygons(self, results: dict) -> None:
+        """Private function to load polygon annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+
+        Returns:
+            dict: The dict contains loaded polygon annotations.
+        """
+
+        gt_polygons = []
+        for instance in results['instances']:
+            gt_polygons.append(np.array(instance['polygon'], dtype=np.float32))
+        results['gt_polygons'] = gt_polygons
+
+    def _load_texts(self, results: dict) -> None:
+        """Private function to load text annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+
+        Returns:
+            dict: The dict contains loaded text annotations.
+        """
+        gt_texts = []
+        for instance in results['instances']:
+            gt_texts.append(instance['text'])
+        results['gt_texts'] = gt_texts
+
+    def transform(self, results: dict) -> dict:
+        """Function to load multiple types annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+
+        Returns:
+            dict: The dict contains loaded bounding box, label polygon and
+            text annotations.
+        """
+        results = super().transform(results)
+        if self.with_polygon:
+            self._load_polygons(results)
+        if self.with_text:
+            self._load_texts(results)
+        if self.with_ignore:
+            self._load_ignore_flags(results)
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(with_bbox={self.with_bbox}, '
+        repr_str += f'with_label={self.with_label}, '
+        repr_str += f'with_polygon={self.with_polygon}, '
+        repr_str += f'with_text={self.with_text}, '
+        repr_str += f"imdecode_backend='{self.imdecode_backend}', "
+
+        if self.file_client_args is not None:
+            repr_str += f'file_client_args={self.file_client_args})'
+        else:
+            repr_str += f'backend_args={self.backend_args})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class LoadKIEAnnotations(MMCV_LoadAnnotations):
+    """Load and process the ``instances`` annotation provided by dataset.
+
+    The annotation format is as the following:
+
+    .. code-block:: python
+
+        {
+            # A nested list of 4 numbers representing the bounding box of the
+            # instance, in (x1, y1, x2, y2) order.
+            'bbox': np.array([[x1, y1, x2, y2], [x1, y1, x2, y2], ...],
+                             dtype=np.int32),
+
+            # Labels of boxes. Shape is (N,).
+            'bbox_labels': np.array([0, 2, ...], dtype=np.int32),
+
+            # Labels of edges. Shape (N, N).
+            'edge_labels': np.array([0, 2, ...], dtype=np.int32),
+
+            # List of texts.
+            "texts": ['text1', 'text2', ...],
+        }
+
+    After this module, the annotation has been changed to the format below:
+
+    .. code-block:: python
+
+        {
+            # In (x1, y1, x2, y2) order, float type. N is the number of bboxes
+            # in np.float32
+            'gt_bboxes': np.ndarray(N, 4),
+            # In np.int64 type.
+            'gt_bboxes_labels': np.ndarray(N, ),
+            # In np.int32 type.
+            'gt_edges_labels': np.ndarray(N, N),
+            # In list[str]
+            'gt_texts': list[str],
+            # tuple(int)
+            'ori_shape': (H, W)
+        }
+
+    Required Keys:
+
+    - bboxes
+    - bbox_labels
+    - edge_labels
+    - texts
+
+    Added Keys:
+
+    - gt_bboxes (np.float32)
+    - gt_bboxes_labels (np.int64)
+    - gt_edges_labels (np.int64)
+    - gt_texts (list[str])
+    - ori_shape (tuple[int])
+
+    Args:
+        with_bbox (bool): Whether to parse and load the bbox annotation.
+            Defaults to True.
+        with_label (bool): Whether to parse and load the label annotation.
+            Defaults to True.
+        with_text (bool): Whether to parse and load the text annotation.
+            Defaults to True.
+        directed (bool): Whether build edges as a directed graph.
+            Defaults to False.
+        key_node_idx (int, optional): Key node label, used to mask out edges
+            that are not connected from key nodes to value nodes. It has to be
+            specified together with ``value_node_idx``. Defaults to None.
+        value_node_idx (int, optional): Value node label, used to mask out
+            edges that are not connected from key nodes to value nodes. It has
+            to be specified together with ``key_node_idx``. Defaults to None.
+    """
+
+    def __init__(self,
+                 with_bbox: bool = True,
+                 with_label: bool = True,
+                 with_text: bool = True,
+                 directed: bool = False,
+                 key_node_idx: Optional[int] = None,
+                 value_node_idx: Optional[int] = None,
+                 **kwargs) -> None:
+        super().__init__(with_bbox=with_bbox, with_label=with_label, **kwargs)
+        self.with_text = with_text
+        self.directed = directed
+        if key_node_idx is not None or value_node_idx is not None:
+            assert key_node_idx is not None and value_node_idx is not None
+            self.key_node_idx = key_node_idx
+            self.value_node_idx = value_node_idx
+
+    def _load_texts(self, results: dict) -> None:
+        """Private function to load text annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+        """
+        gt_texts = []
+        for instance in results['instances']:
+            gt_texts.append(instance['text'])
+        results['gt_texts'] = gt_texts
+
+    def _load_labels(self, results: dict) -> None:
+        """Private function to load label annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``WildReceiptDataset``.
+        """
+        bbox_labels = []
+        edge_labels = []
+        for instance in results['instances']:
+            bbox_labels.append(instance['bbox_label'])
+            edge_labels.append(instance['edge_label'])
+
+        bbox_labels = np.array(bbox_labels, np.int32)
+        edge_labels = np.array(edge_labels)
+        edge_labels = (edge_labels[:, None] == edge_labels[None, :]).astype(
+            np.int32)
+
+        if self.directed:
+            edge_labels = (edge_labels & bbox_labels == 1).astype(np.int32)
+
+        if hasattr(self, 'key_node_idx'):
+            key_nodes_mask = bbox_labels == self.key_node_idx
+            value_nodes_mask = bbox_labels == self.value_node_idx
+            key2value_mask = key_nodes_mask[:,
+                                            None] * value_nodes_mask[None, :]
+            edge_labels[~key2value_mask] = -1
+
+        np.fill_diagonal(edge_labels, -1)
+
+        results['gt_edges_labels'] = edge_labels.astype(np.int64)
+        results['gt_bboxes_labels'] = bbox_labels.astype(np.int64)
+
+    def transform(self, results: dict) -> dict:
+        """Function to load multiple types annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+
+        Returns:
+            dict: The dict contains loaded bounding box, label polygon and
+            text annotations.
+        """
+        if 'ori_shape' not in results:
+            results['ori_shape'] = copy.deepcopy(results['img_shape'])
+        results = super().transform(results)
+        if self.with_text:
+            self._load_texts(results)
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(with_bbox={self.with_bbox}, '
+        repr_str += f'with_label={self.with_label}, '
+        repr_str += f'with_text={self.with_text})'
+        return repr_str
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/ocr_transforms.py b/mmocr-dev-1.x/mmocr/datasets/transforms/ocr_transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..a05984a78935a99de2c7eed92edf5f1f764c3997
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/ocr_transforms.py
@@ -0,0 +1,758 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, Tuple
+
+import cv2
+import mmcv
+import numpy as np
+from mmcv.transforms import Resize as MMCV_Resize
+from mmcv.transforms.base import BaseTransform
+from mmcv.transforms.utils import avoid_cache_randomness, cache_randomness
+
+from mmocr.registry import TRANSFORMS
+from mmocr.utils import (bbox2poly, crop_polygon, is_poly_inside_rect,
+                         poly2bbox, poly2shapely, poly_make_valid,
+                         remove_pipeline_elements, rescale_polygon,
+                         shapely2poly)
+from .wrappers import ImgAugWrapper
+
+
+@TRANSFORMS.register_module()
+@avoid_cache_randomness
+class RandomCrop(BaseTransform):
+    """Randomly crop images and make sure to contain at least one intact
+    instance.
+
+    Required Keys:
+
+    - img
+    - gt_polygons
+    - gt_bboxes
+    - gt_bboxes_labels
+    - gt_ignored
+    - gt_texts (optional)
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - gt_polygons
+    - gt_bboxes
+    - gt_bboxes_labels
+    - gt_ignored
+    - gt_texts (optional)
+
+    Args:
+        min_side_ratio (float): The ratio of the shortest edge of the cropped
+            image to the original image size.
+    """
+
+    def __init__(self, min_side_ratio: float = 0.4) -> None:
+        if not 0. <= min_side_ratio <= 1.:
+            raise ValueError('`min_side_ratio` should be in range [0, 1],')
+        self.min_side_ratio = min_side_ratio
+
+    def _sample_valid_start_end(self, valid_array: np.ndarray, min_len: int,
+                                max_start_idx: int,
+                                min_end_idx: int) -> Tuple[int, int]:
+        """Sample a start and end idx on a given axis that contains at least
+        one polygon. There should be at least one intact polygon bounded by
+        max_start_idx and min_end_idx.
+
+        Args:
+            valid_array (ndarray): A 0-1 mask 1D array indicating valid regions
+                on the axis. 0 indicates text regions which are not allowed to
+                be sampled from.
+            min_len (int): Minimum distance between two start and end points.
+            max_start_idx (int): The maximum start index.
+            min_end_idx (int): The minimum end index.
+
+        Returns:
+            tuple(int, int): Start and end index on a given axis, where
+            0 <= start < max_start_idx and
+            min_end_idx <= end < len(valid_array).
+        """
+        assert isinstance(min_len, int)
+        assert len(valid_array) > min_len
+
+        start_array = valid_array.copy()
+        max_start_idx = min(len(start_array) - min_len, max_start_idx)
+        start_array[max_start_idx:] = 0
+        start_array[0] = 1
+        diff_array = np.hstack([0, start_array]) - np.hstack([start_array, 0])
+        region_starts = np.where(diff_array < 0)[0]
+        region_ends = np.where(diff_array > 0)[0]
+        region_ind = np.random.randint(0, len(region_starts))
+        start = np.random.randint(region_starts[region_ind],
+                                  region_ends[region_ind])
+
+        end_array = valid_array.copy()
+        min_end_idx = max(start + min_len, min_end_idx)
+        end_array[:min_end_idx] = 0
+        end_array[-1] = 1
+        diff_array = np.hstack([0, end_array]) - np.hstack([end_array, 0])
+        region_starts = np.where(diff_array < 0)[0]
+        region_ends = np.where(diff_array > 0)[0]
+        region_ind = np.random.randint(0, len(region_starts))
+        # Note that end index will never be region_ends[region_ind]
+        # and therefore end index is always in range [0, w+1]
+        end = np.random.randint(region_starts[region_ind],
+                                region_ends[region_ind])
+        return start, end
+
+    def _sample_crop_box(self, img_size: Tuple[int, int],
+                         results: Dict) -> np.ndarray:
+        """Generate crop box which only contains intact polygon instances with
+        the number >= 1.
+
+        Args:
+            img_size (tuple(int, int)): The image size (h, w).
+            results (dict): The results dict.
+
+        Returns:
+            ndarray: Crop area in shape (4, ).
+        """
+        assert isinstance(img_size, tuple)
+        h, w = img_size[:2]
+
+        # Crop box can be represented by any integer numbers in
+        # range [0, w] and [0, h]
+        x_valid_array = np.ones(w + 1, dtype=np.int32)
+        y_valid_array = np.ones(h + 1, dtype=np.int32)
+
+        polygons = results['gt_polygons']
+
+        # Randomly select a polygon that must be inside
+        # the cropped region
+        kept_poly_idx = np.random.randint(0, len(polygons))
+        for i, polygon in enumerate(polygons):
+            polygon = polygon.reshape((-1, 2))
+
+            clip_x = np.clip(polygon[:, 0], 0, w)
+            clip_y = np.clip(polygon[:, 1], 0, h)
+            min_x = np.floor(np.min(clip_x)).astype(np.int32)
+            min_y = np.floor(np.min(clip_y)).astype(np.int32)
+            max_x = np.ceil(np.max(clip_x)).astype(np.int32)
+            max_y = np.ceil(np.max(clip_y)).astype(np.int32)
+
+            x_valid_array[min_x:max_x] = 0
+            y_valid_array[min_y:max_y] = 0
+
+            if i == kept_poly_idx:
+                max_x_start = min_x
+                min_x_end = max_x
+                max_y_start = min_y
+                min_y_end = max_y
+
+        min_w = int(w * self.min_side_ratio)
+        min_h = int(h * self.min_side_ratio)
+
+        x1, x2 = self._sample_valid_start_end(x_valid_array, min_w,
+                                              max_x_start, min_x_end)
+        y1, y2 = self._sample_valid_start_end(y_valid_array, min_h,
+                                              max_y_start, min_y_end)
+
+        return np.array([x1, y1, x2, y2])
+
+    def _crop_img(self, img: np.ndarray, bbox: np.ndarray) -> np.ndarray:
+        """Crop image given a bbox region.
+            Args:
+                img (ndarray): Image.
+                bbox (ndarray): Cropping region in shape (4, )
+
+            Returns:
+                ndarray: Cropped image.
+        """
+        assert img.ndim == 3
+        h, w, _ = img.shape
+        assert 0 <= bbox[1] < bbox[3] <= h
+        assert 0 <= bbox[0] < bbox[2] <= w
+        return img[bbox[1]:bbox[3], bbox[0]:bbox[2]]
+
+    def transform(self, results: Dict) -> Dict:
+        """Applying random crop on results.
+        Args:
+            results (dict): Result dict contains the data to transform.
+
+        Returns:
+            dict: The transformed data.
+        """
+        if len(results['gt_polygons']) < 1:
+            return results
+
+        crop_box = self._sample_crop_box(results['img'].shape, results)
+        img = self._crop_img(results['img'], crop_box)
+        results['img'] = img
+        results['img_shape'] = img.shape[:2]
+        crop_x = crop_box[0]
+        crop_y = crop_box[1]
+        crop_w = crop_box[2] - crop_box[0]
+        crop_h = crop_box[3] - crop_box[1]
+
+        labels = results['gt_bboxes_labels']
+        valid_labels = []
+        ignored = results['gt_ignored']
+        valid_ignored = []
+        if 'gt_texts' in results:
+            valid_texts = []
+            texts = results['gt_texts']
+
+        polys = results['gt_polygons']
+        valid_polys = []
+        for idx, poly in enumerate(polys):
+            poly = poly.reshape(-1, 2)
+            poly = (poly - (crop_x, crop_y)).flatten()
+            if is_poly_inside_rect(poly, [0, 0, crop_w, crop_h]):
+                valid_polys.append(poly)
+                valid_labels.append(labels[idx])
+                valid_ignored.append(ignored[idx])
+                if 'gt_texts' in results:
+                    valid_texts.append(texts[idx])
+        results['gt_polygons'] = valid_polys
+        results['gt_bboxes_labels'] = np.array(valid_labels, dtype=np.int64)
+        results['gt_ignored'] = np.array(valid_ignored, dtype=bool)
+        if 'gt_texts' in results:
+            results['gt_texts'] = valid_texts
+        valid_bboxes = [poly2bbox(poly) for poly in results['gt_polygons']]
+        results['gt_bboxes'] = np.array(valid_bboxes).astype(
+            np.float32).reshape(-1, 4)
+
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(min_side_ratio = {self.min_side_ratio})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class RandomRotate(BaseTransform):
+    """Randomly rotate the image, boxes, and polygons. For recognition task,
+    only the image will be rotated. If set ``use_canvas`` as True, the shape of
+    rotated image might be modified based on the rotated angle size, otherwise,
+    the image will keep the shape before rotation.
+
+    Required Keys:
+
+    - img
+    - img_shape
+    - gt_bboxes (optional)
+    - gt_polygons (optional)
+
+    Modified Keys:
+
+    - img
+    - img_shape (optional)
+    - gt_bboxes (optional)
+    - gt_polygons (optional)
+
+    Added Keys:
+
+    - rotated_angle
+
+    Args:
+        max_angle (int): The maximum rotation angle (can be bigger than 180 or
+            a negative). Defaults to 10.
+        pad_with_fixed_color (bool): The flag for whether to pad rotated
+            image with fixed value. Defaults to False.
+        pad_value (tuple[int, int, int]): The color value for padding rotated
+            image. Defaults to (0, 0, 0).
+        use_canvas (bool): Whether to create a canvas for rotated image.
+            Defaults to False. If set true, the image shape may be modified.
+    """
+
+    def __init__(
+        self,
+        max_angle: int = 10,
+        pad_with_fixed_color: bool = False,
+        pad_value: Tuple[int, int, int] = (0, 0, 0),
+        use_canvas: bool = False,
+    ) -> None:
+        if not isinstance(max_angle, int):
+            raise TypeError('`max_angle` should be an integer'
+                            f', but got {type(max_angle)} instead')
+        if not isinstance(pad_with_fixed_color, bool):
+            raise TypeError('`pad_with_fixed_color` should be a bool, '
+                            f'but got {type(pad_with_fixed_color)} instead')
+        if not isinstance(pad_value, (list, tuple)):
+            raise TypeError('`pad_value` should be a list or tuple, '
+                            f'but got {type(pad_value)} instead')
+        if len(pad_value) != 3:
+            raise ValueError('`pad_value` should contain three integers')
+        if not isinstance(pad_value[0], int) or not isinstance(
+                pad_value[1], int) or not isinstance(pad_value[2], int):
+            raise ValueError('`pad_value` should contain three integers')
+
+        self.max_angle = max_angle
+        self.pad_with_fixed_color = pad_with_fixed_color
+        self.pad_value = pad_value
+        self.use_canvas = use_canvas
+
+    @cache_randomness
+    def _sample_angle(self, max_angle: int) -> float:
+        """Sampling a random angle for rotation.
+
+        Args:
+            max_angle (int): Maximum rotation angle
+
+        Returns:
+            float: The random angle used for rotation
+        """
+        angle = np.random.random_sample() * 2 * max_angle - max_angle
+        return angle
+
+    @staticmethod
+    def _cal_canvas_size(ori_size: Tuple[int, int],
+                         degree: int) -> Tuple[int, int]:
+        """Calculate the canvas size.
+
+        Args:
+            ori_size (Tuple[int, int]): The original image size (height, width)
+            degree (int): The rotation angle
+
+        Returns:
+            Tuple[int, int]: The size of the canvas
+        """
+        assert isinstance(ori_size, tuple)
+        angle = degree * math.pi / 180.0
+        h, w = ori_size[:2]
+
+        cos = math.cos(angle)
+        sin = math.sin(angle)
+        canvas_h = int(w * math.fabs(sin) + h * math.fabs(cos))
+        canvas_w = int(w * math.fabs(cos) + h * math.fabs(sin))
+
+        canvas_size = (canvas_h, canvas_w)
+        return canvas_size
+
+    @staticmethod
+    def _rotate_points(center: Tuple[float, float],
+                       points: np.array,
+                       theta: float,
+                       center_shift: Tuple[int, int] = (0, 0)) -> np.array:
+        """Rotating a set of points according to the given theta.
+
+        Args:
+            center (Tuple[float, float]): The coordinate of the canvas center
+            points (np.array): A set of points needed to be rotated
+            theta (float): Rotation angle
+            center_shift (Tuple[int, int]): The shifting offset of the center
+                coordinate
+
+        Returns:
+            np.array: The rotated coordinates of the input points
+        """
+        (center_x, center_y) = center
+        center_y = -center_y
+        x, y = points[::2], points[1::2]
+        y = -y
+
+        theta = theta / 180 * math.pi
+        cos = math.cos(theta)
+        sin = math.sin(theta)
+
+        x = (x - center_x)
+        y = (y - center_y)
+
+        _x = center_x + x * cos - y * sin + center_shift[0]
+        _y = -(center_y + x * sin + y * cos) + center_shift[1]
+
+        points[::2], points[1::2] = _x, _y
+        return points
+
+    def _rotate_img(self, results: Dict) -> Tuple[int, int]:
+        """Rotating the input image based on the given angle.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            Tuple[int, int]: The shifting offset of the center point.
+        """
+        if results.get('img', None) is not None:
+            h = results['img'].shape[0]
+            w = results['img'].shape[1]
+            rotation_matrix = cv2.getRotationMatrix2D(
+                (w / 2, h / 2), results['rotated_angle'], 1)
+
+            canvas_size = self._cal_canvas_size((h, w),
+                                                results['rotated_angle'])
+            center_shift = (int(
+                (canvas_size[1] - w) / 2), int((canvas_size[0] - h) / 2))
+            rotation_matrix[0, 2] += int((canvas_size[1] - w) / 2)
+            rotation_matrix[1, 2] += int((canvas_size[0] - h) / 2)
+            if self.pad_with_fixed_color:
+                rotated_img = cv2.warpAffine(
+                    results['img'],
+                    rotation_matrix, (canvas_size[1], canvas_size[0]),
+                    flags=cv2.INTER_NEAREST,
+                    borderValue=self.pad_value)
+            else:
+                mask = np.zeros_like(results['img'])
+                (h_ind, w_ind) = (np.random.randint(0, h * 7 // 8),
+                                  np.random.randint(0, w * 7 // 8))
+                img_cut = results['img'][h_ind:(h_ind + h // 9),
+                                         w_ind:(w_ind + w // 9)]
+                img_cut = mmcv.imresize(img_cut,
+                                        (canvas_size[1], canvas_size[0]))
+                mask = cv2.warpAffine(
+                    mask,
+                    rotation_matrix, (canvas_size[1], canvas_size[0]),
+                    borderValue=[1, 1, 1])
+                rotated_img = cv2.warpAffine(
+                    results['img'],
+                    rotation_matrix, (canvas_size[1], canvas_size[0]),
+                    borderValue=[0, 0, 0])
+                rotated_img = rotated_img + img_cut * mask
+
+            results['img'] = rotated_img
+        else:
+            raise ValueError('`img` is not found in results')
+
+        return center_shift
+
+    def _rotate_bboxes(self, results: Dict, center_shift: Tuple[int,
+                                                                int]) -> None:
+        """Rotating the bounding boxes based on the given angle.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+            center_shift (Tuple[int, int]): The shifting offset of the
+                center point
+        """
+        if results.get('gt_bboxes', None) is not None:
+            height, width = results['img_shape']
+            box_list = []
+            for box in results['gt_bboxes']:
+                rotated_box = self._rotate_points((width / 2, height / 2),
+                                                  bbox2poly(box),
+                                                  results['rotated_angle'],
+                                                  center_shift)
+                rotated_box = poly2bbox(rotated_box)
+                box_list.append(rotated_box)
+
+            results['gt_bboxes'] = np.array(
+                box_list, dtype=np.float32).reshape(-1, 4)
+
+    def _rotate_polygons(self, results: Dict,
+                         center_shift: Tuple[int, int]) -> None:
+        """Rotating the polygons based on the given angle.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+            center_shift (Tuple[int, int]): The shifting offset of the
+                center point
+        """
+        if results.get('gt_polygons', None) is not None:
+            height, width = results['img_shape']
+            polygon_list = []
+            for poly in results['gt_polygons']:
+                rotated_poly = self._rotate_points(
+                    (width / 2, height / 2), poly, results['rotated_angle'],
+                    center_shift)
+                polygon_list.append(rotated_poly)
+            results['gt_polygons'] = polygon_list
+
+    def transform(self, results: Dict) -> Dict:
+        """Applying random rotate on results.
+
+        Args:
+            results (Dict): Result dict containing the data to transform.
+            center_shift (Tuple[int, int]): The shifting offset of the
+                center point
+
+        Returns:
+            dict: The transformed data
+        """
+        # TODO rotate char_quads & char_rects for SegOCR
+        if self.use_canvas:
+            results['rotated_angle'] = self._sample_angle(self.max_angle)
+            # rotate image
+            center_shift = self._rotate_img(results)
+            # rotate gt_bboxes
+            self._rotate_bboxes(results, center_shift)
+            # rotate gt_polygons
+            self._rotate_polygons(results, center_shift)
+
+            results['img_shape'] = (results['img'].shape[0],
+                                    results['img'].shape[1])
+        else:
+            args = [
+                dict(
+                    cls='Affine',
+                    rotate=[-self.max_angle, self.max_angle],
+                    backend='cv2',
+                    order=0)  # order=0 -> cv2.INTER_NEAREST
+            ]
+            imgaug_transform = ImgAugWrapper(args)
+            results = imgaug_transform(results)
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(max_angle = {self.max_angle}'
+        repr_str += f', pad_with_fixed_color = {self.pad_with_fixed_color}'
+        repr_str += f', pad_value = {self.pad_value}'
+        repr_str += f', use_canvas = {self.use_canvas})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class Resize(MMCV_Resize):
+    """Resize image & bboxes & polygons.
+
+    This transform resizes the input image according to ``scale`` or
+    ``scale_factor``. Bboxes and polygons are then resized with the same
+    scale factor. if ``scale`` and ``scale_factor`` are both set, it will use
+    ``scale`` to resize.
+
+    Required Keys:
+
+    - img
+    - img_shape
+    - gt_bboxes
+    - gt_polygons
+
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - gt_bboxes
+    - gt_polygons
+
+    Added Keys:
+
+    - scale
+    - scale_factor
+    - keep_ratio
+
+    Args:
+        scale (int or tuple): Image scales for resizing. Defaults to None.
+        scale_factor (float or tuple[float, float]): Scale factors for
+            resizing. It's either a factor applicable to both dimensions or
+            in the form of (scale_w, scale_h). Defaults to None.
+        keep_ratio (bool): Whether to keep the aspect ratio when resizing the
+            image. Defaults to False.
+        clip_object_border (bool): Whether to clip the objects outside the
+            border of the image. Defaults to True.
+        backend (str): Image resize backend, choices are 'cv2' and 'pillow'.
+            These two backends generates slightly different results. Defaults
+            to 'cv2'.
+        interpolation (str): Interpolation method, accepted values are
+            "nearest", "bilinear", "bicubic", "area", "lanczos" for 'cv2'
+            backend, "nearest", "bilinear" for 'pillow' backend. Defaults
+            to 'bilinear'.
+    """
+
+    def _resize_img(self, results: dict) -> None:
+        """Resize images with ``results['scale']``.
+
+        If no image is provided, only resize ``results['img_shape']``.
+        """
+        if results.get('img', None) is not None:
+            return super()._resize_img(results)
+        h, w = results['img_shape']
+        if self.keep_ratio:
+            new_w, new_h = mmcv.rescale_size((w, h),
+                                             results['scale'],
+                                             return_scale=False)
+        else:
+            new_w, new_h = results['scale']
+        w_scale = new_w / w
+        h_scale = new_h / h
+        results['img_shape'] = (new_h, new_w)
+        results['scale'] = (new_w, new_h)
+        results['scale_factor'] = (w_scale, h_scale)
+        results['keep_ratio'] = self.keep_ratio
+
+    def _resize_bboxes(self, results: dict) -> None:
+        """Resize bounding boxes."""
+        super()._resize_bboxes(results)
+        if results.get('gt_bboxes', None) is not None:
+            results['gt_bboxes'] = results['gt_bboxes'].astype(np.float32)
+
+    def _resize_polygons(self, results: dict) -> None:
+        """Resize polygons with ``results['scale_factor']``."""
+        if results.get('gt_polygons', None) is not None:
+            polygons = results['gt_polygons']
+            polygons_resize = []
+            for idx, polygon in enumerate(polygons):
+                polygon = rescale_polygon(polygon, results['scale_factor'])
+                if self.clip_object_border:
+                    crop_bbox = np.array([
+                        0, 0, results['img_shape'][1], results['img_shape'][0]
+                    ])
+                    polygon = crop_polygon(polygon, crop_bbox)
+                if polygon is not None:
+                    polygons_resize.append(polygon.astype(np.float32))
+                else:
+                    polygons_resize.append(
+                        np.zeros_like(polygons[idx], dtype=np.float32))
+            results['gt_polygons'] = polygons_resize
+
+    def transform(self, results: dict) -> dict:
+        """Transform function to resize images, bounding boxes and polygons.
+
+        Args:
+            results (dict): Result dict from loading pipeline.
+
+        Returns:
+            dict: Resized results, 'img', 'gt_bboxes', 'gt_polygons',
+            'scale', 'scale_factor', 'height', 'width', and 'keep_ratio' keys
+            are updated in result dict.
+        """
+        results = super().transform(results)
+        self._resize_polygons(results)
+        return results
+
+    def __repr__(self):
+        repr_str = self.__class__.__name__
+        repr_str += f'(scale={self.scale}, '
+        repr_str += f'scale_factor={self.scale_factor}, '
+        repr_str += f'keep_ratio={self.keep_ratio}, '
+        repr_str += f'clip_object_border={self.clip_object_border}), '
+        repr_str += f'backend={self.backend}), '
+        repr_str += f'interpolation={self.interpolation})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class RemoveIgnored(BaseTransform):
+    """Removed ignored elements from the pipeline.
+
+    Required Keys:
+
+    - gt_ignored
+    - gt_polygons (optional)
+    - gt_bboxes (optional)
+    - gt_bboxes_labels (optional)
+    - gt_texts (optional)
+
+    Modified Keys:
+
+    - gt_ignored
+    - gt_polygons (optional)
+    - gt_bboxes (optional)
+    - gt_bboxes_labels (optional)
+    - gt_texts (optional)
+    """
+
+    def transform(self, results: Dict) -> Dict:
+        remove_inds = np.where(results['gt_ignored'])[0]
+        if len(remove_inds) == len(results['gt_ignored']):
+            return None
+        return remove_pipeline_elements(results, remove_inds)
+
+
+@TRANSFORMS.register_module()
+class FixInvalidPolygon(BaseTransform):
+    """Fix invalid polygons in the dataset.
+
+    Required Keys:
+
+    - gt_polygons
+    - gt_ignored (optional)
+    - gt_bboxes (optional)
+    - gt_bboxes_labels (optional)
+    - gt_texts (optional)
+
+    Modified Keys:
+
+    - gt_polygons
+    - gt_ignored (optional)
+    - gt_bboxes (optional)
+    - gt_bboxes_labels (optional)
+    - gt_texts (optional)
+
+    Args:
+        mode (str): The mode of fixing invalid polygons. Options are 'fix' and
+            'ignore'.
+            For the 'fix' mode, the transform will try to fix
+            the invalid polygons to a valid one by eliminating the
+            self-intersection or converting the bboxes to polygons. If
+            it can't be fixed by any means (e.g. the polygon contains less
+            than 3 points or it's actually a line/point), the annotation will
+            be removed.
+            For the 'ignore' mode, the invalid polygons
+            will be set to "ignored" during training.
+            Defaults to 'fix'.
+        min_poly_points (int): Minimum number of the coordinate points in a
+            polygon. Defaults to 4.
+        fix_from_bbox (bool): Whether to convert the bboxes to polygons when
+            the polygon is invalid and not directly fixable. Defaults to True.
+    """
+
+    def __init__(self,
+                 mode: str = 'fix',
+                 min_poly_points: int = 4,
+                 fix_from_bbox: bool = True) -> None:
+        super().__init__()
+        self.mode = mode
+        assert min_poly_points >= 3, 'min_poly_points must be greater than 3.'
+        self.min_poly_points = min_poly_points
+        self.fix_from_bbox = fix_from_bbox
+        assert self.mode in [
+            'fix', 'ignore'
+        ], f"Supported modes are 'fix' and 'ignore', but got {self.mode}"
+
+    def transform(self, results: Dict) -> Dict:
+        """Fix invalid polygons.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            Optional[dict]: The transformed data. If all the polygons are
+            unfixable, return None.
+        """
+        if results.get('gt_polygons', None) is not None:
+            remove_inds = []
+            for idx, polygon in enumerate(results['gt_polygons']):
+                if self.mode == 'ignore':
+                    if results['gt_ignored'][idx]:
+                        continue
+                    if not (len(polygon) >= self.min_poly_points * 2
+                            and len(polygon) % 2
+                            == 0) or not poly2shapely(polygon).is_valid:
+                        results['gt_ignored'][idx] = True
+                else:
+                    # If "polygon" contains less than 3 points
+                    if len(polygon) < 6:
+                        remove_inds.append(idx)
+                        continue
+                    try:
+                        shapely_polygon = poly2shapely(polygon)
+                        if shapely_polygon.is_valid and len(
+                                polygon) >= self.min_poly_points * 2:
+                            continue
+                        results['gt_polygons'][idx] = shapely2poly(
+                            poly_make_valid(shapely_polygon))
+                        # If an empty polygon is generated, it's still a bad
+                        # fix
+                        if len(results['gt_polygons'][idx]) == 0:
+                            raise ValueError
+                    # It's hard to fix, e.g. the "polygon" is a line or
+                    # a point
+                    except Exception:
+                        if self.fix_from_bbox and 'gt_bboxes' in results:
+                            bbox = results['gt_bboxes'][idx]
+                            bbox_polygon = bbox2poly(bbox)
+                            results['gt_polygons'][idx] = bbox_polygon
+                            shapely_polygon = poly2shapely(bbox_polygon)
+                            if (not shapely_polygon.is_valid
+                                    or shapely_polygon.is_empty):
+                                remove_inds.append(idx)
+                        else:
+                            remove_inds.append(idx)
+            if len(remove_inds) == len(results['gt_polygons']):
+                return None
+            results = remove_pipeline_elements(results, remove_inds)
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(mode = "{self.mode}", '
+        repr_str += f'min_poly_points = {self.min_poly_points}, '
+        repr_str += f'fix_from_bbox = {self.fix_from_bbox})'
+        return repr_str
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/textdet_transforms.py b/mmocr-dev-1.x/mmocr/datasets/transforms/textdet_transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..537c9bd323888e8906e287ce72a77d1af4d48582
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/textdet_transforms.py
@@ -0,0 +1,854 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+import random
+from typing import Dict, List, Sequence, Tuple, Union
+
+import cv2
+import mmcv
+import numpy as np
+from mmcv.transforms import RandomFlip as MMCV_RandomFlip
+from mmcv.transforms.base import BaseTransform
+from mmcv.transforms.utils import avoid_cache_randomness, cache_randomness
+from shapely.geometry import Polygon as plg
+
+from mmocr.registry import TRANSFORMS
+from mmocr.utils import crop_polygon, poly2bbox, poly_intersection
+
+
+@TRANSFORMS.register_module()
+@avoid_cache_randomness
+class BoundedScaleAspectJitter(BaseTransform):
+    """First randomly rescale the image so that the longside and shortside of
+    the image are around the bound; then jitter its aspect ratio.
+
+    Required Keys:
+
+    - img
+    - img_shape
+    - gt_bboxes (optional)
+    - gt_polygons (optional)
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - gt_bboxes (optional)
+    - gt_polygons (optional)
+
+    Added Keys:
+
+    - scale
+    - scale_factor
+    - keep_ratio
+
+    Args:
+        long_size_bound (int): The approximate bound for long size.
+        short_size_bound (int): The approximate bound for short size.
+        size_jitter_range (tuple(float, float)): Range of the ratio used
+            to jitter the size. Defaults to (0.7, 1.3).
+        aspect_ratio_jitter_range (tuple(float, float)): Range of the ratio
+            used to jitter its aspect ratio. Defaults to (0.9, 1.1).
+        resize_type (str): The type of resize class to use. Defaults to
+            "Resize".
+        **resize_kwargs: Other keyword arguments for the ``resize_type``.
+    """
+
+    def __init__(
+        self,
+        long_size_bound: int,
+        short_size_bound: int,
+        ratio_range: Tuple[float, float] = (0.7, 1.3),
+        aspect_ratio_range: Tuple[float, float] = (0.9, 1.1),
+        resize_type: str = 'Resize',
+        **resize_kwargs,
+    ) -> None:
+        super().__init__()
+        self.ratio_range = ratio_range
+        self.aspect_ratio_range = aspect_ratio_range
+        self.long_size_bound = long_size_bound
+        self.short_size_bound = short_size_bound
+        self.resize_cfg = dict(type=resize_type, **resize_kwargs)
+        # create an empty Reisize object
+        self.resize_cfg.update(dict(scale=0))
+        self.resize = TRANSFORMS.build(self.resize_cfg)
+
+    def _sample_from_range(self, range: Tuple[float, float]) -> float:
+        """A ratio will be randomly sampled from the range specified by
+        ``range``.
+
+        Args:
+            ratio_range (tuple[float]): The minimum and maximum ratio.
+
+        Returns:
+            float: A ratio randomly sampled from the range.
+        """
+        min_value, max_value = min(range), max(range)
+        value = np.random.random_sample() * (max_value - min_value) + min_value
+        return value
+
+    def transform(self, results: Dict) -> Dict:
+        h, w = results['img'].shape[:2]
+        new_scale = 1
+        if max(h, w) > self.long_size_bound:
+            new_scale = self.long_size_bound / max(h, w)
+        jitter_ratio = self._sample_from_range(self.ratio_range)
+        jitter_ratio = new_scale * jitter_ratio
+        if min(h, w) * jitter_ratio <= self.short_size_bound:
+            jitter_ratio = (self.short_size_bound + 10) * 1.0 / min(h, w)
+        aspect = self._sample_from_range(self.aspect_ratio_range)
+        h_scale = jitter_ratio * math.sqrt(aspect)
+        w_scale = jitter_ratio / math.sqrt(aspect)
+        new_h = int(h * h_scale)
+        new_w = int(w * w_scale)
+
+        self.resize.scale = (new_w, new_h)
+        return self.resize(results)
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(long_size_bound = {self.long_size_bound}, '
+        repr_str += f'short_size_bound = {self.short_size_bound}, '
+        repr_str += f'ratio_range = {self.ratio_range}, '
+        repr_str += f'aspect_ratio_range = {self.aspect_ratio_range}, '
+        repr_str += f'resize_cfg = {self.resize_cfg})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class RandomFlip(MMCV_RandomFlip):
+    """Flip the image & bbox polygon.
+
+    There are 3 flip modes:
+
+     - ``prob`` is float, ``direction`` is string: the image will be
+         ``direction``ly flipped with probability of ``prob`` .
+         E.g., ``prob=0.5``, ``direction='horizontal'``,
+         then image will be horizontally flipped with probability of 0.5.
+     - ``prob`` is float, ``direction`` is list of string: the image will
+         be ``direction[i]``ly flipped with probability of
+         ``prob/len(direction)``.
+         E.g., ``prob=0.5``, ``direction=['horizontal', 'vertical']``,
+         then image will be horizontally flipped with probability of 0.25,
+         vertically with probability of 0.25.
+     - ``prob`` is list of float, ``direction`` is list of string:
+         given ``len(prob) == len(direction)``, the image will
+         be ``direction[i]``ly flipped with probability of ``prob[i]``.
+         E.g., ``prob=[0.3, 0.5]``, ``direction=['horizontal',
+         'vertical']``, then image will be horizontally flipped with
+         probability of 0.3, vertically with probability of 0.5.
+
+    Required Keys:
+        - img
+        - gt_bboxes (optional)
+        - gt_polygons (optional)
+
+    Modified Keys:
+        - img
+        - gt_bboxes (optional)
+        - gt_polygons (optional)
+
+    Added Keys:
+        - flip
+        - flip_direction
+    Args:
+         prob (float | list[float], optional): The flipping probability.
+             Defaults to None.
+         direction(str | list[str]): The flipping direction. Options
+             If input is a list, the length must equal ``prob``. Each
+             element in ``prob`` indicates the flip probability of
+             corresponding direction. Defaults to 'horizontal'.
+    """
+
+    def flip_polygons(self, polygons: Sequence[np.ndarray],
+                      img_shape: Tuple[int, int],
+                      direction: str) -> Sequence[np.ndarray]:
+        """Flip polygons horizontally, vertically or diagonally.
+
+        Args:
+            polygons (list[numpy.ndarray): polygons.
+            img_shape (tuple[int]): Image shape (height, width)
+            direction (str): Flip direction. Options are 'horizontal',
+                'vertical' and 'diagonal'.
+        Returns:
+            list[numpy.ndarray]: Flipped polygons.
+        """
+
+        h, w = img_shape
+        flipped_polygons = []
+        if direction == 'horizontal':
+            for polygon in polygons:
+                flipped_polygon = polygon.copy()
+                flipped_polygon[0::2] = w - polygon[0::2]
+                flipped_polygons.append(flipped_polygon)
+        elif direction == 'vertical':
+            for polygon in polygons:
+                flipped_polygon = polygon.copy()
+                flipped_polygon[1::2] = h - polygon[1::2]
+                flipped_polygons.append(flipped_polygon)
+        elif direction == 'diagonal':
+            for polygon in polygons:
+                flipped_polygon = polygon.copy()
+                flipped_polygon[0::2] = w - polygon[0::2]
+                flipped_polygon[1::2] = h - polygon[1::2]
+                flipped_polygons.append(flipped_polygon)
+        else:
+            raise ValueError(
+                f"Flipping direction must be 'horizontal', 'vertical', \
+                  or 'diagnal', but got '{direction}'")
+        return flipped_polygons
+
+    def _flip(self, results: dict) -> None:
+        """Flip images, bounding boxes and polygons.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+        """
+        super()._flip(results)
+        # flip polygons
+        if results.get('gt_polygons', None) is not None:
+            results['gt_polygons'] = self.flip_polygons(
+                results['gt_polygons'], results['img'].shape[:2],
+                results['flip_direction'])
+
+
+@TRANSFORMS.register_module()
+class SourceImagePad(BaseTransform):
+    """Pad Image to target size. It will randomly crop an area from the
+    original image and resize it to the target size, then paste the original
+    image to its top left corner.
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    - img_shape
+
+    Added Keys:
+    - pad_shape
+    - pad_fixed_size
+
+    Args:
+        target_scale (int or tuple[int, int]]): The target size of padded
+            image. If it's an integer, then the padding size would be
+            (target_size, target_size). If it's tuple, then ``target_scale[0]``
+            should be the width and ``target_scale[1]`` should be the height.
+            The size of the padded image will be (target_scale[1],
+            target_scale[0])
+        crop_ratio (float or Tuple[float, float]): Relative size for the
+            crop region. If ``crop_ratio`` is a float, then the initial crop
+            size would be
+            ``(crop_ratio * img.shape[0], crop_ratio * img.shape[1])`` . If
+            ``crop_ratio`` is a tuple, then ``crop_ratio[0]`` is for the width
+            and ``crop_ratio[1]`` is for the height. The initial crop size
+            would be
+            ``(crop_ratio[1] * img.shape[0], crop_ratio[0] * img.shape[1])``.
+            Defaults to 1./9.
+    """
+
+    def __init__(self,
+                 target_scale: Union[int, Tuple[int, int]],
+                 crop_ratio: Union[float, Tuple[float,
+                                                float]] = 1. / 9) -> None:
+        self.target_scale = target_scale if isinstance(
+            target_scale, tuple) else (target_scale, target_scale)
+        self.crop_ratio = crop_ratio if isinstance(
+            crop_ratio, tuple) else (crop_ratio, crop_ratio)
+
+    def transform(self, results: Dict) -> Dict:
+        """Pad Image to target size. It will randomly select a small area from
+        the  original image and resize it to the target size, then paste the
+        original image to its top left corner.
+
+        Args:
+            results (Dict): Result dict containing the data to transform.
+
+        Returns:
+            (Dict): The transformed data.
+        """
+        img = results['img']
+        h, w = img.shape[:2]
+        assert h <= self.target_scale[1] and w <= self.target_scale[
+            0], 'image size should be smaller that the target size'
+        h_ind = np.random.randint(0, int(h - h * self.crop_ratio[1]) + 1)
+        w_ind = np.random.randint(0, int(w - w * self.crop_ratio[0]) + 1)
+        img_cut = img[h_ind:int(h_ind + h * self.crop_ratio[1]),
+                      w_ind:int(w_ind + w * self.crop_ratio[1])]
+        expand_img = mmcv.imresize(img_cut, self.target_scale)
+        # paste img to the top left corner of the padding region
+        expand_img[0:h, 0:w] = img
+        results['img'] = expand_img
+        results['img_shape'] = expand_img.shape[:2]
+        results['pad_shape'] = expand_img.shape
+        results['pad_fixed_size'] = self.target_scale
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(target_scale = {self.target_scale}, '
+        repr_str += f'crop_ratio = {self.crop_ratio})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+@avoid_cache_randomness
+class ShortScaleAspectJitter(BaseTransform):
+    """First rescale the image for its shorter side to reach the short_size and
+    then jitter its aspect ratio, final rescale the shape guaranteed to be
+    divided by scale_divisor.
+
+    Required Keys:
+
+    - img
+    - img_shape
+    - gt_bboxes (optional)
+    - gt_polygons (optional)
+
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - gt_bboxes (optional)
+    - gt_polygons (optional)
+
+    Added Keys:
+
+    - scale
+    - scale_factor
+    - keep_ratio
+
+    Args:
+        short_size (int): Target shorter size before jittering the aspect
+            ratio. Defaults to 736.
+        short_size_jitter_range (tuple(float, float)): Range of the ratio used
+            to jitter the target shorter size. Defaults to (0.7, 1.3).
+        aspect_ratio_jitter_range (tuple(float, float)): Range of the ratio
+            used to jitter its aspect ratio. Defaults to (0.9, 1.1).
+        scale_divisor (int): The scale divisor. Defaults to 1.
+        resize_type (str): The type of resize class to use. Defaults to
+            "Resize".
+        **resize_kwargs: Other keyword arguments for the ``resize_type``.
+    """
+
+    def __init__(self,
+                 short_size: int = 736,
+                 ratio_range: Tuple[float, float] = (0.7, 1.3),
+                 aspect_ratio_range: Tuple[float, float] = (0.9, 1.1),
+                 scale_divisor: int = 1,
+                 resize_type: str = 'Resize',
+                 **resize_kwargs) -> None:
+
+        super().__init__()
+        self.short_size = short_size
+        self.ratio_range = ratio_range
+        self.aspect_ratio_range = aspect_ratio_range
+        self.resize_cfg = dict(type=resize_type, **resize_kwargs)
+
+        # create a empty Reisize object
+        self.resize_cfg.update(dict(scale=0))
+        self.resize = TRANSFORMS.build(self.resize_cfg)
+        self.scale_divisor = scale_divisor
+
+    def _sample_from_range(self, range: Tuple[float, float]) -> float:
+        """A ratio will be randomly sampled from the range specified by
+        ``range``.
+
+        Args:
+            ratio_range (tuple[float]): The minimum and maximum ratio.
+
+        Returns:
+            float: A ratio randomly sampled from the range.
+        """
+        min_value, max_value = min(range), max(range)
+        value = np.random.random_sample() * (max_value - min_value) + min_value
+        return value
+
+    def transform(self, results: Dict) -> Dict:
+        """Short Scale Aspect Jitter.
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            dict: The transformed data.
+        """
+        h, w = results['img'].shape[:2]
+        ratio = self._sample_from_range(self.ratio_range)
+        scale = (ratio * self.short_size) / min(h, w)
+
+        aspect = self._sample_from_range(self.aspect_ratio_range)
+        h_scale = scale * math.sqrt(aspect)
+        w_scale = scale / math.sqrt(aspect)
+        new_h = round(h * h_scale)
+        new_w = round(w * w_scale)
+
+        new_h = math.ceil(new_h / self.scale_divisor) * self.scale_divisor
+        new_w = math.ceil(new_w / self.scale_divisor) * self.scale_divisor
+        self.resize.scale = (new_w, new_h)
+        return self.resize(results)
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(short_size = {self.short_size}, '
+        repr_str += f'ratio_range = {self.ratio_range}, '
+        repr_str += f'aspect_ratio_range = {self.aspect_ratio_range}, '
+        repr_str += f'scale_divisor = {self.scale_divisor}, '
+        repr_str += f'resize_cfg = {self.resize_cfg})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class TextDetRandomCropFlip(BaseTransform):
+    # TODO Rename this transformer; Refactor the redundant code.
+    """Random crop and flip a patch in the image. Only used in text detection
+    task.
+
+    Required Keys:
+
+    - img
+    - gt_bboxes
+    - gt_polygons
+
+    Modified Keys:
+
+    - img
+    - gt_bboxes
+    - gt_polygons
+
+    Args:
+        pad_ratio (float): The ratio of padding. Defaults to 0.1.
+        crop_ratio (float): The ratio of cropping. Defaults to 0.5.
+        iter_num (int): Number of operations. Defaults to 1.
+        min_area_ratio (float): Minimal area ratio between cropped patch
+            and original image. Defaults to 0.2.
+        epsilon (float): The threshold of polygon IoU between cropped area
+            and polygon, which is used to avoid cropping text instances.
+            Defaults to 0.01.
+    """
+
+    def __init__(self,
+                 pad_ratio: float = 0.1,
+                 crop_ratio: float = 0.5,
+                 iter_num: int = 1,
+                 min_area_ratio: float = 0.2,
+                 epsilon: float = 1e-2) -> None:
+        if not isinstance(pad_ratio, float):
+            raise TypeError('`pad_ratio` should be an float, '
+                            f'but got {type(pad_ratio)} instead')
+        if not isinstance(crop_ratio, float):
+            raise TypeError('`crop_ratio` should be a float, '
+                            f'but got {type(crop_ratio)} instead')
+        if not isinstance(iter_num, int):
+            raise TypeError('`iter_num` should be an integer, '
+                            f'but got {type(iter_num)} instead')
+        if not isinstance(min_area_ratio, float):
+            raise TypeError('`min_area_ratio` should be a float, '
+                            f'but got {type(min_area_ratio)} instead')
+        if not isinstance(epsilon, float):
+            raise TypeError('`epsilon` should be a float, '
+                            f'but got {type(epsilon)} instead')
+
+        self.pad_ratio = pad_ratio
+        self.epsilon = epsilon
+        self.crop_ratio = crop_ratio
+        self.iter_num = iter_num
+        self.min_area_ratio = min_area_ratio
+
+    @cache_randomness
+    def _random_prob(self) -> float:
+        """Get the random prob to decide whether apply the transform.
+
+        Returns:
+            float: The probability
+        """
+        return random.random()
+
+    @cache_randomness
+    def _random_flip_type(self) -> int:
+        """Get the random flip type.
+
+        Returns:
+            int: The flip type index. (0: horizontal; 1: vertical; 2: both)
+        """
+        return np.random.randint(3)
+
+    @cache_randomness
+    def _random_choice(self, axis: np.ndarray) -> np.ndarray:
+        """Randomly select two coordinates from the axis.
+
+        Args:
+            axis (np.ndarray): Result dict containing the data to transform
+
+        Returns:
+            np.ndarray: The selected coordinates
+        """
+        return np.random.choice(axis, size=2)
+
+    def transform(self, results: Dict) -> Dict:
+        """Applying random crop flip on results.
+
+        Args:
+            results (dict): Result dict containing the data to transform
+
+        Returns:
+            dict: The transformed data
+        """
+        assert 'img' in results, '`img` is not found in results'
+        for _ in range(self.iter_num):
+            results = self._random_crop_flip_polygons(results)
+        bboxes = [poly2bbox(poly) for poly in results['gt_polygons']]
+        results['gt_bboxes'] = np.array(
+            bboxes, dtype=np.float32).reshape(-1, 4)
+        return results
+
+    def _random_crop_flip_polygons(self, results: Dict) -> Dict:
+        """Applying random crop flip on polygons.
+
+        Args:
+            results (dict): Result dict containing the data to transform
+
+        Returns:
+            dict: The transformed data
+        """
+        if results.get('gt_polygons', None) is None:
+            return results
+
+        image = results['img']
+        polygons = results['gt_polygons']
+        if len(polygons) == 0 or self._random_prob() > self.crop_ratio:
+            return results
+
+        h, w = results['img_shape']
+        area = h * w
+        pad_h = int(h * self.pad_ratio)
+        pad_w = int(w * self.pad_ratio)
+        h_axis, w_axis = self._generate_crop_target(image, polygons, pad_h,
+                                                    pad_w)
+        if len(h_axis) == 0 or len(w_axis) == 0:
+            return results
+
+        # At most 10 attempts
+        for _ in range(10):
+            polys_keep = []
+            polys_new = []
+            kept_idxs = []
+            xx = self._random_choice(w_axis)
+            yy = self._random_choice(h_axis)
+            xmin = np.clip(np.min(xx) - pad_w, 0, w - 1)
+            xmax = np.clip(np.max(xx) - pad_w, 0, w - 1)
+            ymin = np.clip(np.min(yy) - pad_h, 0, h - 1)
+            ymax = np.clip(np.max(yy) - pad_h, 0, h - 1)
+            if (xmax - xmin) * (ymax - ymin) < area * self.min_area_ratio:
+                # Skip when cropped area is too small
+                continue
+
+            pts = np.stack([[xmin, xmax, xmax, xmin],
+                            [ymin, ymin, ymax, ymax]]).T.astype(np.int32)
+            pp = plg(pts)
+            success_flag = True
+            for poly_idx, polygon in enumerate(polygons):
+                ppi = plg(polygon.reshape(-1, 2))
+                ppiou = poly_intersection(ppi, pp)
+                if np.abs(ppiou - float(ppi.area)) > self.epsilon and \
+                        np.abs(ppiou) > self.epsilon:
+                    success_flag = False
+                    break
+                kept_idxs.append(poly_idx)
+                if np.abs(ppiou - float(ppi.area)) < self.epsilon:
+                    polys_new.append(polygon)
+                else:
+                    polys_keep.append(polygon)
+
+            if success_flag:
+                break
+
+        cropped = image[ymin:ymax, xmin:xmax, :]
+        select_type = self._random_flip_type()
+        if select_type == 0:
+            img = np.ascontiguousarray(cropped[:, ::-1])
+        elif select_type == 1:
+            img = np.ascontiguousarray(cropped[::-1, :])
+        else:
+            img = np.ascontiguousarray(cropped[::-1, ::-1])
+        image[ymin:ymax, xmin:xmax, :] = img
+        results['img'] = image
+
+        if len(polys_new) != 0:
+            height, width, _ = cropped.shape
+            if select_type == 0:
+                for idx, polygon in enumerate(polys_new):
+                    poly = polygon.reshape(-1, 2)
+                    poly[:, 0] = width - poly[:, 0] + 2 * xmin
+                    polys_new[idx] = poly.reshape(-1, )
+            elif select_type == 1:
+                for idx, polygon in enumerate(polys_new):
+                    poly = polygon.reshape(-1, 2)
+                    poly[:, 1] = height - poly[:, 1] + 2 * ymin
+                    polys_new[idx] = poly.reshape(-1, )
+            else:
+                for idx, polygon in enumerate(polys_new):
+                    poly = polygon.reshape(-1, 2)
+                    poly[:, 0] = width - poly[:, 0] + 2 * xmin
+                    poly[:, 1] = height - poly[:, 1] + 2 * ymin
+                    polys_new[idx] = poly.reshape(-1, )
+            polygons = polys_keep + polys_new
+            # ignored = polys_keep_ignore_idx + polys_new_ignore_idx
+            results['gt_polygons'] = polygons
+            results['gt_ignored'] = results['gt_ignored'][kept_idxs]
+            results['gt_bboxes_labels'] = results['gt_bboxes_labels'][
+                kept_idxs]
+        return results
+
+    def _generate_crop_target(self, image: np.ndarray,
+                              all_polys: List[np.ndarray], pad_h: int,
+                              pad_w: int) -> Tuple[np.ndarray, np.ndarray]:
+        """Generate cropping target and make sure not to crop the polygon
+        instances.
+
+        Args:
+            image (np.ndarray): The image waited to be crop.
+            all_polys (list[np.ndarray]): Ground-truth polygons.
+            pad_h (int): Padding length of height.
+            pad_w (int): Padding length of width.
+
+        Returns:
+            (np.ndarray, np.ndarray): Returns a tuple ``(h_axis, w_axis)``,
+            where ``h_axis`` is the vertical cropping range and ``w_axis``
+            is the horizontal cropping range.
+        """
+        h, w, _ = image.shape
+        h_array = np.zeros((h + pad_h * 2), dtype=np.int32)
+        w_array = np.zeros((w + pad_w * 2), dtype=np.int32)
+
+        text_polys = []
+        for polygon in all_polys:
+            rect = cv2.minAreaRect(polygon.astype(np.int32).reshape(-1, 2))
+            box = cv2.boxPoints(rect)
+            box = np.int0(box)
+            text_polys.append([box[0], box[1], box[2], box[3]])
+
+        polys = np.array(text_polys, dtype=np.int32)
+        for poly in polys:
+            poly = np.round(poly, decimals=0).astype(np.int32)
+            minx, maxx = np.min(poly[:, 0]), np.max(poly[:, 0])
+            miny, maxy = np.min(poly[:, 1]), np.max(poly[:, 1])
+            w_array[minx + pad_w:maxx + pad_w] = 1
+            h_array[miny + pad_h:maxy + pad_h] = 1
+
+        h_axis = np.where(h_array == 0)[0]
+        w_axis = np.where(w_array == 0)[0]
+        return h_axis, w_axis
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(pad_ratio = {self.pad_ratio}'
+        repr_str += f', crop_ratio = {self.crop_ratio}'
+        repr_str += f', iter_num = {self.iter_num}'
+        repr_str += f', min_area_ratio = {self.min_area_ratio}'
+        repr_str += f', epsilon = {self.epsilon})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+@avoid_cache_randomness
+class TextDetRandomCrop(BaseTransform):
+    """Randomly select a region and crop images to a target size and make sure
+    to contain text region. This transform may break up text instances, and for
+    broken text instances, we will crop it's bbox and polygon coordinates. This
+    transform is recommend to be used in segmentation-based network.
+
+    Required Keys:
+
+    - img
+    - gt_polygons
+    - gt_bboxes
+    - gt_bboxes_labels
+    - gt_ignored
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    - gt_polygons
+    - gt_bboxes
+    - gt_bboxes_labels
+    - gt_ignored
+
+    Args:
+        target_size (tuple(int, int) or int): Target size for the cropped
+            image. If it's a tuple, then target width and target height will be
+            ``target_size[0]`` and ``target_size[1]``, respectively. If it's an
+            integer, them both target width and target height will be
+            ``target_size``.
+        positive_sample_ratio (float): The probability of sampling regions
+            that go through text regions. Defaults to 5. / 8.
+    """
+
+    def __init__(self,
+                 target_size: Tuple[int, int] or int,
+                 positive_sample_ratio: float = 5.0 / 8.0) -> None:
+        self.target_size = target_size if isinstance(
+            target_size, tuple) else (target_size, target_size)
+        self.positive_sample_ratio = positive_sample_ratio
+
+    def _get_postive_prob(self) -> float:
+        """Get the probability to do positive sample.
+
+        Returns:
+            float: The probability to do positive sample.
+        """
+        return np.random.random_sample()
+
+    def _sample_num(self, start, end):
+        """Sample a number in range [start, end].
+
+        Args:
+            start (int): Starting point.
+            end (int): Ending point.
+
+        Returns:
+            (int): Sampled number.
+        """
+        return random.randint(start, end)
+
+    def _sample_offset(self, gt_polygons: Sequence[np.ndarray],
+                       img_size: Tuple[int, int]) -> Tuple[int, int]:
+        """Samples the top-left coordinate of a crop region, ensuring that the
+        cropped region contains at least one polygon.
+
+        Args:
+            gt_polygons (list(ndarray)) : Polygons.
+            img_size (tuple(int, int)) : Image size in the format of
+                (height, width).
+
+        Returns:
+            tuple(int, int): Top-left coordinate of the cropped region.
+        """
+        h, w = img_size
+        t_w, t_h = self.target_size
+
+        # target size is bigger than origin size
+        t_h = t_h if t_h < h else h
+        t_w = t_w if t_w < w else w
+        if (gt_polygons is not None and len(gt_polygons) > 0
+                and self._get_postive_prob() < self.positive_sample_ratio):
+
+            # make sure to crop the positive region
+
+            # the minimum top left to crop positive region (h,w)
+            tl = np.array([h + 1, w + 1], dtype=np.int32)
+            for gt_polygon in gt_polygons:
+                temp_point = np.min(gt_polygon.reshape(2, -1), axis=1)
+                if temp_point[0] <= tl[0]:
+                    tl[0] = temp_point[0]
+                if temp_point[1] <= tl[1]:
+                    tl[1] = temp_point[1]
+            tl = tl - (t_h, t_w)
+            tl[tl < 0] = 0
+            # the maximum bottum right to crop positive region
+            br = np.array([0, 0], dtype=np.int32)
+            for gt_polygon in gt_polygons:
+                temp_point = np.max(gt_polygon.reshape(2, -1), axis=1)
+                if temp_point[0] > br[0]:
+                    br[0] = temp_point[0]
+                if temp_point[1] > br[1]:
+                    br[1] = temp_point[1]
+            br = br - (t_h, t_w)
+            br[br < 0] = 0
+
+            # if br is too big so that crop the outside region of img
+            br[0] = min(br[0], h - t_h)
+            br[1] = min(br[1], w - t_w)
+            #
+            h = self._sample_num(tl[0], br[0]) if tl[0] < br[0] else 0
+            w = self._sample_num(tl[1], br[1]) if tl[1] < br[1] else 0
+        else:
+            # make sure not to crop outside of img
+
+            h = self._sample_num(0, h - t_h) if h - t_h > 0 else 0
+            w = self._sample_num(0, w - t_w) if w - t_w > 0 else 0
+
+        return (h, w)
+
+    def _crop_img(self, img: np.ndarray, offset: Tuple[int, int],
+                  target_size: Tuple[int, int]) -> np.ndarray:
+        """Crop the image given an offset and a target size.
+
+        Args:
+            img (ndarray): Image.
+            offset (Tuple[int. int]): Coordinates of the starting point.
+            target_size: Target image size.
+        """
+        h, w = img.shape[:2]
+        target_size = target_size[::-1]
+        br = np.min(
+            np.stack((np.array(offset) + np.array(target_size), np.array(
+                (h, w)))),
+            axis=0)
+        return img[offset[0]:br[0], offset[1]:br[1]], np.array(
+            [offset[1], offset[0], br[1], br[0]])
+
+    def _crop_polygons(self, polygons: Sequence[np.ndarray],
+                       crop_bbox: np.ndarray) -> Sequence[np.ndarray]:
+        """Crop polygons to be within a crop region. If polygon crosses the
+        crop_bbox, we will keep the part left in crop_bbox by cropping its
+        boardline.
+
+        Args:
+            polygons (list(ndarray)): List of polygons [(N1, ), (N2, ), ...].
+            crop_bbox (ndarray): Cropping region. [x1, y1, x2, y1].
+
+        Returns
+            tuple(List(ArrayLike), list[int]):
+                - (List(ArrayLike)): The rest of the polygons located in the
+                    crop region.
+                - (list[int]): Index list of the reserved polygons.
+        """
+        polygons_cropped = []
+        kept_idx = []
+        for idx, polygon in enumerate(polygons):
+            if polygon.size < 6:
+                continue
+            poly = crop_polygon(polygon, crop_bbox)
+            if poly is not None:
+                poly = poly.reshape(-1, 2) - (crop_bbox[0], crop_bbox[1])
+                polygons_cropped.append(poly.reshape(-1))
+                kept_idx.append(idx)
+        return (polygons_cropped, kept_idx)
+
+    def transform(self, results: Dict) -> Dict:
+        """Applying random crop on results.
+        Args:
+            results (dict): Result dict contains the data to transform.
+
+        Returns:
+            dict: The transformed data
+        """
+        if self.target_size == results['img'].shape[:2][::-1]:
+            return results
+        gt_polygons = results['gt_polygons']
+        crop_offset = self._sample_offset(gt_polygons,
+                                          results['img'].shape[:2])
+        img, crop_bbox = self._crop_img(results['img'], crop_offset,
+                                        self.target_size)
+        results['img'] = img
+        results['img_shape'] = img.shape[:2]
+        gt_polygons, polygon_kept_idx = self._crop_polygons(
+            gt_polygons, crop_bbox)
+        bboxes = [poly2bbox(poly) for poly in gt_polygons]
+        results['gt_bboxes'] = np.array(
+            bboxes, dtype=np.float32).reshape(-1, 4)
+
+        results['gt_polygons'] = gt_polygons
+        results['gt_bboxes_labels'] = results['gt_bboxes_labels'][
+            polygon_kept_idx]
+        results['gt_ignored'] = results['gt_ignored'][polygon_kept_idx]
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(target_size = {self.target_size}, '
+        repr_str += f'positive_sample_ratio = {self.positive_sample_ratio})'
+        return repr_str
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/textrecog_transforms.py b/mmocr-dev-1.x/mmocr/datasets/transforms/textrecog_transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..abb094c316cc88b4f288de84aba281f9cabc4dd8
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/textrecog_transforms.py
@@ -0,0 +1,724 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+import random
+from typing import Dict, List, Optional, Tuple
+
+import cv2
+import mmcv
+import numpy as np
+from mmcv.transforms.base import BaseTransform
+from mmcv.transforms.utils import cache_randomness
+
+from mmocr.registry import TRANSFORMS
+
+
+@TRANSFORMS.register_module()
+class PyramidRescale(BaseTransform):
+    """Resize the image to the base shape, downsample it with gaussian pyramid,
+    and rescale it back to original size.
+
+    Adapted from https://github.com/FangShancheng/ABINet.
+
+    Required Keys:
+
+    - img (ndarray)
+
+    Modified Keys:
+
+    - img (ndarray)
+
+    Args:
+        factor (int): The decay factor from base size, or the number of
+            downsampling operations from the base layer.
+        base_shape (tuple[int, int]): The shape (width, height) of the base
+            layer of the pyramid.
+        randomize_factor (bool): If True, the final factor would be a random
+            integer in [0, factor].
+    """
+
+    def __init__(self,
+                 factor: int = 4,
+                 base_shape: Tuple[int, int] = (128, 512),
+                 randomize_factor: bool = True) -> None:
+        if not isinstance(factor, int):
+            raise TypeError('`factor` should be an integer, '
+                            f'but got {type(factor)} instead')
+        if not isinstance(base_shape, (list, tuple)):
+            raise TypeError('`base_shape` should be a list or tuple, '
+                            f'but got {type(base_shape)} instead')
+        if not len(base_shape) == 2:
+            raise ValueError('`base_shape` should contain two integers')
+        if not isinstance(base_shape[0], int) or not isinstance(
+                base_shape[1], int):
+            raise ValueError('`base_shape` should contain two integers')
+        if not isinstance(randomize_factor, bool):
+            raise TypeError('`randomize_factor` should be a bool, '
+                            f'but got {type(randomize_factor)} instead')
+
+        self.factor = factor
+        self.randomize_factor = randomize_factor
+        self.base_w, self.base_h = base_shape
+
+    @cache_randomness
+    def get_random_factor(self) -> float:
+        """Get the randomized factor.
+
+        Returns:
+            float: The randomized factor.
+        """
+        return np.random.randint(0, self.factor + 1)
+
+    def transform(self, results: Dict) -> Dict:
+        """Applying pyramid rescale on results.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            Dict: The transformed data.
+        """
+
+        assert 'img' in results, '`img` is not found in results'
+        if self.randomize_factor:
+            self.factor = self.get_random_factor()
+        if self.factor == 0:
+            return results
+        img = results['img']
+        src_h, src_w = img.shape[:2]
+        scale_img = mmcv.imresize(img, (self.base_w, self.base_h))
+        for _ in range(self.factor):
+            scale_img = cv2.pyrDown(scale_img)
+        scale_img = mmcv.imresize(scale_img, (src_w, src_h))
+        results['img'] = scale_img
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(factor = {self.factor}'
+        repr_str += f', randomize_factor = {self.randomize_factor}'
+        repr_str += f', base_w = {self.base_w}'
+        repr_str += f', base_h = {self.base_h})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class RescaleToHeight(BaseTransform):
+    """Rescale the image to the height according to setting and keep the aspect
+    ratio unchanged if possible. However, if any of ``min_width``,
+    ``max_width`` or ``width_divisor`` are specified, aspect ratio may still be
+    changed to ensure the width meets these constraints.
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    - img_shape
+
+    Added Keys:
+
+    - scale
+    - scale_factor
+    - keep_ratio
+
+    Args:
+        height (int): Height of rescaled image.
+        min_width (int, optional): Minimum width of rescaled image. Defaults
+            to None.
+        max_width (int, optional): Maximum width of rescaled image. Defaults
+            to None.
+        width_divisor (int): The divisor of width size. Defaults to 1.
+        resize_type (str): The type of resize class to use. Defaults to
+            "Resize".
+        **resize_kwargs: Other keyword arguments for the ``resize_type``.
+    """
+
+    def __init__(self,
+                 height: int,
+                 min_width: Optional[int] = None,
+                 max_width: Optional[int] = None,
+                 width_divisor: int = 1,
+                 resize_type: str = 'Resize',
+                 **resize_kwargs) -> None:
+
+        super().__init__()
+        assert isinstance(height, int)
+        assert isinstance(width_divisor, int)
+        if min_width is not None:
+            assert isinstance(min_width, int)
+        if max_width is not None:
+            assert isinstance(max_width, int)
+        self.width_divisor = width_divisor
+        self.height = height
+        self.min_width = min_width
+        self.max_width = max_width
+        self.resize_cfg = dict(type=resize_type, **resize_kwargs)
+        self.resize_cfg.update(dict(scale=0))
+        self.resize = TRANSFORMS.build(self.resize_cfg)
+
+    def transform(self, results: Dict) -> Dict:
+        """Transform function to resize images, bounding boxes and polygons.
+
+        Args:
+            results (dict): Result dict from loading pipeline.
+
+        Returns:
+            dict: Resized results.
+        """
+        ori_height, ori_width = results['img'].shape[:2]
+        new_width = math.ceil(float(self.height) / ori_height * ori_width)
+        if self.min_width is not None:
+            new_width = max(self.min_width, new_width)
+        if self.max_width is not None:
+            new_width = min(self.max_width, new_width)
+
+        if new_width % self.width_divisor != 0:
+            new_width = round(
+                new_width / self.width_divisor) * self.width_divisor
+        # TODO replace up code after testing precision.
+        # new_width = math.ceil(
+        #     new_width / self.width_divisor) * self.width_divisor
+        scale = (new_width, self.height)
+        self.resize.scale = scale
+        results = self.resize(results)
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(height={self.height}, '
+        repr_str += f'min_width={self.min_width}, '
+        repr_str += f'max_width={self.max_width}, '
+        repr_str += f'width_divisor={self.width_divisor}, '
+        repr_str += f'resize_cfg={self.resize_cfg})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class PadToWidth(BaseTransform):
+    """Only pad the image's width.
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    - img_shape
+
+    Added Keys:
+
+    - pad_shape
+    - pad_fixed_size
+    - pad_size_divisor
+    - valid_ratio
+
+    Args:
+        width (int): Target width of padded image. Defaults to None.
+        pad_cfg (dict): Config to construct the Resize transform. Refer to
+            ``Pad`` for detail. Defaults to ``dict(type='Pad')``.
+    """
+
+    def __init__(self, width: int, pad_cfg: dict = dict(type='Pad')) -> None:
+        super().__init__()
+        assert isinstance(width, int)
+        self.width = width
+        self.pad_cfg = pad_cfg
+        _pad_cfg = self.pad_cfg.copy()
+        _pad_cfg.update(dict(size=0))
+        self.pad = TRANSFORMS.build(_pad_cfg)
+
+    def transform(self, results: Dict) -> Dict:
+        """Call function to pad images.
+
+        Args:
+            results (dict): Result dict from loading pipeline.
+
+        Returns:
+            dict: Updated result dict.
+        """
+        ori_height, ori_width = results['img'].shape[:2]
+        valid_ratio = min(1.0, 1.0 * ori_width / self.width)
+        size = (self.width, ori_height)
+        self.pad.size = size
+        results = self.pad(results)
+        results['valid_ratio'] = valid_ratio
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(width={self.width}, '
+        repr_str += f'pad_cfg={self.pad_cfg})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class TextRecogGeneralAug(BaseTransform):
+    """A general geometric augmentation tool for text images in the CVPR 2020
+    paper "Learn to Augment: Joint Data Augmentation and Network Optimization
+    for Text Recognition". It applies distortion, stretching, and perspective
+    transforms to an image.
+
+    This implementation is adapted from
+    https://github.com/RubanSeven/Text-Image-Augmentation-python/blob/master/augment.py  # noqa
+
+    TODO: Split this transform into three transforms.
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    - img_shape
+    """  # noqa
+
+    def transform(self, results: Dict) -> Dict:
+        """Call function to pad images.
+
+        Args:
+            results (dict): Result dict from loading pipeline.
+
+        Returns:
+            dict: Updated result dict.
+        """
+        h, w = results['img'].shape[:2]
+        if h >= 20 and w >= 20:
+            results['img'] = self.tia_distort(results['img'],
+                                              random.randint(3, 6))
+            results['img'] = self.tia_stretch(results['img'],
+                                              random.randint(3, 6))
+        h, w = results['img'].shape[:2]
+        if h >= 5 and w >= 5:
+            results['img'] = self.tia_perspective(results['img'])
+        results['img_shape'] = results['img'].shape[:2]
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += '()'
+        return repr_str
+
+    def tia_distort(self, img: np.ndarray, segment: int = 4) -> np.ndarray:
+        """Image distortion.
+
+        Args:
+            img (np.ndarray): The image.
+            segment (int): The number of segments to divide the image along
+                the width. Defaults to 4.
+        """
+        img_h, img_w = img.shape[:2]
+
+        cut = img_w // segment
+        thresh = cut // 3
+
+        src_pts = list()
+        dst_pts = list()
+
+        src_pts.append([0, 0])
+        src_pts.append([img_w, 0])
+        src_pts.append([img_w, img_h])
+        src_pts.append([0, img_h])
+
+        dst_pts.append([np.random.randint(thresh), np.random.randint(thresh)])
+        dst_pts.append(
+            [img_w - np.random.randint(thresh),
+             np.random.randint(thresh)])
+        dst_pts.append([
+            img_w - np.random.randint(thresh),
+            img_h - np.random.randint(thresh)
+        ])
+        dst_pts.append(
+            [np.random.randint(thresh), img_h - np.random.randint(thresh)])
+
+        half_thresh = thresh * 0.5
+
+        for cut_idx in np.arange(1, segment, 1):
+            src_pts.append([cut * cut_idx, 0])
+            src_pts.append([cut * cut_idx, img_h])
+            dst_pts.append([
+                cut * cut_idx + np.random.randint(thresh) - half_thresh,
+                np.random.randint(thresh) - half_thresh
+            ])
+            dst_pts.append([
+                cut * cut_idx + np.random.randint(thresh) - half_thresh,
+                img_h + np.random.randint(thresh) - half_thresh
+            ])
+
+        dst = self.warp_mls(img, src_pts, dst_pts, img_w, img_h)
+
+        return dst
+
+    def tia_stretch(self, img: np.ndarray, segment: int = 4) -> np.ndarray:
+        """Image stretching.
+
+        Args:
+            img (np.ndarray): The image.
+            segment (int): The number of segments to divide the image along
+                the width. Defaults to 4.
+        """
+        img_h, img_w = img.shape[:2]
+
+        cut = img_w // segment
+        thresh = cut * 4 // 5
+
+        src_pts = list()
+        dst_pts = list()
+
+        src_pts.append([0, 0])
+        src_pts.append([img_w, 0])
+        src_pts.append([img_w, img_h])
+        src_pts.append([0, img_h])
+
+        dst_pts.append([0, 0])
+        dst_pts.append([img_w, 0])
+        dst_pts.append([img_w, img_h])
+        dst_pts.append([0, img_h])
+
+        half_thresh = thresh * 0.5
+
+        for cut_idx in np.arange(1, segment, 1):
+            move = np.random.randint(thresh) - half_thresh
+            src_pts.append([cut * cut_idx, 0])
+            src_pts.append([cut * cut_idx, img_h])
+            dst_pts.append([cut * cut_idx + move, 0])
+            dst_pts.append([cut * cut_idx + move, img_h])
+
+        dst = self.warp_mls(img, src_pts, dst_pts, img_w, img_h)
+
+        return dst
+
+    def tia_perspective(self, img: np.ndarray) -> np.ndarray:
+        """Image perspective transformation.
+
+        Args:
+            img (np.ndarray): The image.
+            segment (int): The number of segments to divide the image along
+                the width. Defaults to 4.
+        """
+        img_h, img_w = img.shape[:2]
+
+        thresh = img_h // 2
+
+        src_pts = list()
+        dst_pts = list()
+
+        src_pts.append([0, 0])
+        src_pts.append([img_w, 0])
+        src_pts.append([img_w, img_h])
+        src_pts.append([0, img_h])
+
+        dst_pts.append([0, np.random.randint(thresh)])
+        dst_pts.append([img_w, np.random.randint(thresh)])
+        dst_pts.append([img_w, img_h - np.random.randint(thresh)])
+        dst_pts.append([0, img_h - np.random.randint(thresh)])
+
+        dst = self.warp_mls(img, src_pts, dst_pts, img_w, img_h)
+
+        return dst
+
+    def warp_mls(self,
+                 src: np.ndarray,
+                 src_pts: List[int],
+                 dst_pts: List[int],
+                 dst_w: int,
+                 dst_h: int,
+                 trans_ratio: float = 1.) -> np.ndarray:
+        """Warp the image."""
+        rdx, rdy = self._calc_delta(dst_w, dst_h, src_pts, dst_pts, 100)
+        return self._gen_img(src, rdx, rdy, dst_w, dst_h, 100, trans_ratio)
+
+    def _calc_delta(self, dst_w: int, dst_h: int, src_pts: List[int],
+                    dst_pts: List[int],
+                    grid_size: int) -> Tuple[np.ndarray, np.ndarray]:
+        """Compute delta."""
+
+        pt_count = len(dst_pts)
+        rdx = np.zeros((dst_h, dst_w))
+        rdy = np.zeros((dst_h, dst_w))
+        w = np.zeros(pt_count, dtype=np.float32)
+
+        if pt_count < 2:
+            return
+
+        i = 0
+        while True:
+            if dst_w <= i < dst_w + grid_size - 1:
+                i = dst_w - 1
+            elif i >= dst_w:
+                break
+
+            j = 0
+            while True:
+                if dst_h <= j < dst_h + grid_size - 1:
+                    j = dst_h - 1
+                elif j >= dst_h:
+                    break
+
+                sw = 0
+                swp = np.zeros(2, dtype=np.float32)
+                swq = np.zeros(2, dtype=np.float32)
+                new_pt = np.zeros(2, dtype=np.float32)
+                cur_pt = np.array([i, j], dtype=np.float32)
+
+                k = 0
+                for k in range(pt_count):
+                    if i == dst_pts[k][0] and j == dst_pts[k][1]:
+                        break
+
+                    w[k] = 1. / ((i - dst_pts[k][0]) * (i - dst_pts[k][0]) +
+                                 (j - dst_pts[k][1]) * (j - dst_pts[k][1]))
+
+                    sw += w[k]
+                    swp = swp + w[k] * np.array(dst_pts[k])
+                    swq = swq + w[k] * np.array(src_pts[k])
+
+                if k == pt_count - 1:
+                    pstar = 1 / sw * swp
+                    qstar = 1 / sw * swq
+
+                    miu_s = 0
+                    for k in range(pt_count):
+                        if i == dst_pts[k][0] and j == dst_pts[k][1]:
+                            continue
+                        pt_i = dst_pts[k] - pstar
+                        miu_s += w[k] * np.sum(pt_i * pt_i)
+
+                    cur_pt -= pstar
+                    cur_pt_j = np.array([-cur_pt[1], cur_pt[0]])
+
+                    for k in range(pt_count):
+                        if i == dst_pts[k][0] and j == dst_pts[k][1]:
+                            continue
+
+                        pt_i = dst_pts[k] - pstar
+                        pt_j = np.array([-pt_i[1], pt_i[0]])
+
+                        tmp_pt = np.zeros(2, dtype=np.float32)
+                        tmp_pt[0] = (
+                            np.sum(pt_i * cur_pt) * src_pts[k][0] -
+                            np.sum(pt_j * cur_pt) * src_pts[k][1])
+                        tmp_pt[1] = (-np.sum(pt_i * cur_pt_j) * src_pts[k][0] +
+                                     np.sum(pt_j * cur_pt_j) * src_pts[k][1])
+                        tmp_pt *= (w[k] / miu_s)
+                        new_pt += tmp_pt
+
+                    new_pt += qstar
+                else:
+                    new_pt = src_pts[k]
+
+                rdx[j, i] = new_pt[0] - i
+                rdy[j, i] = new_pt[1] - j
+
+                j += grid_size
+            i += grid_size
+        return rdx, rdy
+
+    def _gen_img(self, src: np.ndarray, rdx: np.ndarray, rdy: np.ndarray,
+                 dst_w: int, dst_h: int, grid_size: int,
+                 trans_ratio: float) -> np.ndarray:
+        """Generate the image based on delta."""
+
+        src_h, src_w = src.shape[:2]
+        dst = np.zeros_like(src, dtype=np.float32)
+
+        for i in np.arange(0, dst_h, grid_size):
+            for j in np.arange(0, dst_w, grid_size):
+                ni = i + grid_size
+                nj = j + grid_size
+                w = h = grid_size
+                if ni >= dst_h:
+                    ni = dst_h - 1
+                    h = ni - i + 1
+                if nj >= dst_w:
+                    nj = dst_w - 1
+                    w = nj - j + 1
+
+                di = np.reshape(np.arange(h), (-1, 1))
+                dj = np.reshape(np.arange(w), (1, -1))
+                delta_x = self._bilinear_interp(di / h, dj / w, rdx[i, j],
+                                                rdx[i, nj], rdx[ni, j],
+                                                rdx[ni, nj])
+                delta_y = self._bilinear_interp(di / h, dj / w, rdy[i, j],
+                                                rdy[i, nj], rdy[ni, j],
+                                                rdy[ni, nj])
+                nx = j + dj + delta_x * trans_ratio
+                ny = i + di + delta_y * trans_ratio
+                nx = np.clip(nx, 0, src_w - 1)
+                ny = np.clip(ny, 0, src_h - 1)
+                nxi = np.array(np.floor(nx), dtype=np.int32)
+                nyi = np.array(np.floor(ny), dtype=np.int32)
+                nxi1 = np.array(np.ceil(nx), dtype=np.int32)
+                nyi1 = np.array(np.ceil(ny), dtype=np.int32)
+
+                if len(src.shape) == 3:
+                    x = np.tile(np.expand_dims(ny - nyi, axis=-1), (1, 1, 3))
+                    y = np.tile(np.expand_dims(nx - nxi, axis=-1), (1, 1, 3))
+                else:
+                    x = ny - nyi
+                    y = nx - nxi
+                dst[i:i + h,
+                    j:j + w] = self._bilinear_interp(x, y, src[nyi, nxi],
+                                                     src[nyi, nxi1],
+                                                     src[nyi1, nxi], src[nyi1,
+                                                                         nxi1])
+
+        dst = np.clip(dst, 0, 255)
+        dst = np.array(dst, dtype=np.uint8)
+
+        return dst
+
+    @staticmethod
+    def _bilinear_interp(x, y, v11, v12, v21, v22):
+        """Bilinear interpolation.
+
+        TODO: Docs for args and put it into utils.
+        """
+        return (v11 * (1 - y) + v12 * y) * (1 - x) + (v21 *
+                                                      (1 - y) + v22 * y) * x
+
+
+@TRANSFORMS.register_module()
+class CropHeight(BaseTransform):
+    """Randomly crop the image's height, either from top or bottom.
+
+    Adapted from
+    https://github.com/PaddlePaddle/PaddleOCR/blob/release%2F2.6/ppocr/data/imaug/rec_img_aug.py  # noqa
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    - img_shape
+
+    Args:
+        crop_min (int): Minimum pixel(s) to crop. Defaults to 1.
+        crop_max (int): Maximum pixel(s) to crop. Defaults to 8.
+    """
+
+    def __init__(
+        self,
+        min_pixels: int = 1,
+        max_pixels: int = 8,
+    ) -> None:
+        super().__init__()
+        assert max_pixels >= min_pixels
+        self.min_pixels = min_pixels
+        self.max_pixels = max_pixels
+
+    @cache_randomness
+    def get_random_vars(self):
+        """Get all the random values used in this transform."""
+        crop_pixels = int(random.randint(self.min_pixels, self.max_pixels))
+        crop_top = random.randint(0, 1)
+        return crop_pixels, crop_top
+
+    def transform(self, results: Dict) -> Dict:
+        """Transform function to crop images.
+
+        Args:
+            results (dict): Result dict from loading pipeline.
+
+        Returns:
+            dict: Cropped results.
+        """
+        h = results['img'].shape[0]
+        crop_pixels, crop_top = self.get_random_vars()
+        crop_pixels = min(crop_pixels, h - 1)
+        img = results['img'].copy()
+        if crop_top:
+            img = img[crop_pixels:h, :, :]
+        else:
+            img = img[0:h - crop_pixels, :, :]
+        results['img_shape'] = img.shape[:2]
+        results['img'] = img
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(min_pixels = {self.min_pixels}, '
+        repr_str += f'max_pixels = {self.max_pixels})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class ImageContentJitter(BaseTransform):
+    """Jitter the image contents.
+
+    Adapted from
+    https://github.com/PaddlePaddle/PaddleOCR/blob/release%2F2.6/ppocr/data/imaug/rec_img_aug.py  # noqa
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    """
+
+    def transform(self, results: Dict, jitter_ratio: float = 0.01) -> Dict:
+        """Transform function to jitter images.
+
+        Args:
+            results (dict): Result dict from loading pipeline.
+            jitter_ratio (float): Controls the strength of jittering.
+                Defaults to 0.01.
+
+        Returns:
+            dict: Jittered results.
+        """
+        h, w = results['img'].shape[:2]
+        img = results['img'].copy()
+        if h > 10 and w > 10:
+            thres = min(h, w)
+            jitter_range = int(random.random() * thres * 0.01)
+            for i in range(jitter_range):
+                img[i:, i:, :] = img[:h - i, :w - i, :]
+        results['img'] = img
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += '()'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class ReversePixels(BaseTransform):
+    """Reverse image pixels.
+
+    Adapted from
+    https://github.com/PaddlePaddle/PaddleOCR/blob/release%2F2.6/ppocr/data/imaug/rec_img_aug.py  # noqa
+
+    Required Keys:
+
+    - img
+
+    Modified Keys:
+
+    - img
+    """
+
+    def transform(self, results: Dict) -> Dict:
+        """Transform function to reverse image pixels.
+
+        Args:
+            results (dict): Result dict from loading pipeline.
+
+        Returns:
+            dict: Reversed results.
+        """
+        results['img'] = 255. - results['img'].copy()
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += '()'
+        return repr_str
diff --git a/mmocr-dev-1.x/mmocr/datasets/transforms/wrappers.py b/mmocr-dev-1.x/mmocr/datasets/transforms/wrappers.py
new file mode 100644
index 0000000000000000000000000000000000000000..086edb759b20c20a94fe8d7139350ba22a636c03
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/transforms/wrappers.py
@@ -0,0 +1,343 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Any, Dict, List, Optional, Tuple, Union
+
+import imgaug
+import imgaug.augmenters as iaa
+import numpy as np
+import torchvision.transforms as torchvision_transforms
+from mmcv.transforms import Compose
+from mmcv.transforms.base import BaseTransform
+from PIL import Image
+
+from mmocr.registry import TRANSFORMS
+from mmocr.utils import poly2bbox
+
+
+@TRANSFORMS.register_module()
+class ImgAugWrapper(BaseTransform):
+    """A wrapper around imgaug https://github.com/aleju/imgaug.
+
+    Find available augmenters at
+    https://imgaug.readthedocs.io/en/latest/source/overview_of_augmenters.html.
+
+    Required Keys:
+
+    - img
+    - gt_polygons (optional for text recognition)
+    - gt_bboxes (optional for text recognition)
+    - gt_bboxes_labels (optional for text recognition)
+    - gt_ignored (optional for text recognition)
+    - gt_texts (optional)
+
+    Modified Keys:
+
+    - img
+    - gt_polygons (optional for text recognition)
+    - gt_bboxes (optional for text recognition)
+    - gt_bboxes_labels (optional for text recognition)
+    - gt_ignored (optional for text recognition)
+    - img_shape (optional)
+    - gt_texts (optional)
+
+    Args:
+        args (list[list or dict]], optional): The argumentation list. For
+            details, please refer to imgaug document. Take
+            args=[['Fliplr', 0.5], dict(cls='Affine', rotate=[-10, 10]),
+            ['Resize', [0.5, 3.0]]] as an example. The args horizontally flip
+            images with probability 0.5, followed by random rotation with
+            angles in range [-10, 10], and resize with an independent scale in
+            range [0.5, 3.0] for each side of images. Defaults to None.
+        fix_poly_trans (dict): The transform configuration to fix invalid
+            polygons. Set it to None if no fixing is needed.
+            Defaults to dict(type='FixInvalidPolygon').
+    """
+
+    def __init__(
+        self,
+        args: Optional[List[Union[List, Dict]]] = None,
+        fix_poly_trans: Optional[dict] = dict(type='FixInvalidPolygon')
+    ) -> None:
+        assert args is None or isinstance(args, list) and len(args) > 0
+        if args is not None:
+            for arg in args:
+                assert isinstance(arg, (list, dict)), \
+                    'args should be a list of list or dict'
+        self.args = args
+        self.augmenter = self._build_augmentation(args)
+        self.fix_poly_trans = fix_poly_trans
+        if fix_poly_trans is not None:
+            self.fix = TRANSFORMS.build(fix_poly_trans)
+
+    def transform(self, results: Dict) -> Dict:
+        """Transform the image and annotation data.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            dict: The transformed data.
+        """
+        # img is bgr
+        image = results['img']
+        aug = None
+        ori_shape = image.shape
+
+        if self.augmenter:
+            aug = self.augmenter.to_deterministic()
+            if not self._augment_annotations(aug, ori_shape, results):
+                return None
+            results['img'] = aug.augment_image(image)
+            results['img_shape'] = (results['img'].shape[0],
+                                    results['img'].shape[1])
+        if getattr(self, 'fix', None) is not None:
+            results = self.fix(results)
+        return results
+
+    def _augment_annotations(self, aug: imgaug.augmenters.meta.Augmenter,
+                             ori_shape: Tuple[int,
+                                              int], results: Dict) -> Dict:
+        """Augment annotations following the pre-defined augmentation sequence.
+
+        Args:
+            aug (imgaug.augmenters.meta.Augmenter): The imgaug augmenter.
+            ori_shape (tuple[int, int]): The ori_shape of the original image.
+            results (dict): Result dict containing annotations to transform.
+
+        Returns:
+            bool: Whether the transformation has been successfully applied. If
+            the transform results in empty polygon/bbox annotations, return
+            False.
+        """
+        # Assume co-existence of `gt_polygons`, `gt_bboxes` and `gt_ignored`
+        # for text detection
+        if 'gt_polygons' in results:
+
+            # augment polygons
+            transformed_polygons, removed_poly_inds = self._augment_polygons(
+                aug, ori_shape, results['gt_polygons'])
+            if len(transformed_polygons) == 0:
+                return False
+            results['gt_polygons'] = transformed_polygons
+
+            # remove instances that are no longer inside the augmented image
+            results['gt_bboxes_labels'] = np.delete(
+                results['gt_bboxes_labels'], removed_poly_inds, axis=0)
+            results['gt_ignored'] = np.delete(
+                results['gt_ignored'], removed_poly_inds, axis=0)
+            # TODO: deal with gt_texts corresponding to clipped polygons
+            if 'gt_texts' in results:
+                results['gt_texts'] = [
+                    text for i, text in enumerate(results['gt_texts'])
+                    if i not in removed_poly_inds
+                ]
+
+            # Generate new bboxes
+            bboxes = [poly2bbox(poly) for poly in transformed_polygons]
+            results['gt_bboxes'] = np.zeros((0, 4), dtype=np.float32)
+            if len(bboxes) > 0:
+                results['gt_bboxes'] = np.stack(bboxes)
+
+        return True
+
+    def _augment_polygons(self, aug: imgaug.augmenters.meta.Augmenter,
+                          ori_shape: Tuple[int, int], polys: List[np.ndarray]
+                          ) -> Tuple[List[np.ndarray], List[int]]:
+        """Augment polygons.
+
+        Args:
+            aug (imgaug.augmenters.meta.Augmenter): The imgaug augmenter.
+            ori_shape (tuple[int, int]): The shape of the original image.
+            polys (list[np.ndarray]): The polygons to be augmented.
+
+        Returns:
+            tuple(list[np.ndarray], list[int]): The augmented polygons, and the
+            indices of polygons removed as they are out of the augmented image.
+        """
+        imgaug_polys = []
+        for poly in polys:
+            poly = poly.reshape(-1, 2)
+            imgaug_polys.append(imgaug.Polygon(poly))
+        imgaug_polys = aug.augment_polygons(
+            [imgaug.PolygonsOnImage(imgaug_polys, shape=ori_shape)])[0]
+
+        new_polys = []
+        removed_poly_inds = []
+        for i, poly in enumerate(imgaug_polys.polygons):
+            # Sometimes imgaug may produce some invalid polygons with no points
+            if not poly.is_valid or poly.is_out_of_image(imgaug_polys.shape):
+                removed_poly_inds.append(i)
+                continue
+            new_poly = []
+            try:
+                poly = poly.clip_out_of_image(imgaug_polys.shape)[0]
+            except Exception as e:
+                warnings.warn(f'Failed to clip polygon out of image: {e}')
+            for point in poly:
+                new_poly.append(np.array(point, dtype=np.float32))
+            new_poly = np.array(new_poly, dtype=np.float32).flatten()
+            # Under some conditions, imgaug can generate "polygon" with only
+            # two points, which is not a valid polygon.
+            if len(new_poly) <= 4:
+                removed_poly_inds.append(i)
+                continue
+            new_polys.append(new_poly)
+
+        return new_polys, removed_poly_inds
+
+    def _build_augmentation(self, args, root=True):
+        """Build ImgAugWrapper augmentations.
+
+        Args:
+            args (dict): Arguments to be passed to imgaug.
+            root (bool): Whether it's building the root augmenter.
+
+        Returns:
+            imgaug.augmenters.meta.Augmenter: The built augmenter.
+        """
+        if args is None:
+            return None
+        if isinstance(args, (int, float, str)):
+            return args
+        if isinstance(args, list):
+            if root:
+                sequence = [
+                    self._build_augmentation(value, root=False)
+                    for value in args
+                ]
+                return iaa.Sequential(sequence)
+            arg_list = [self._to_tuple_if_list(a) for a in args[1:]]
+            return getattr(iaa, args[0])(*arg_list)
+        if isinstance(args, dict):
+            if 'cls' in args:
+                cls = getattr(iaa, args['cls'])
+                return cls(
+                    **{
+                        k: self._to_tuple_if_list(v)
+                        for k, v in args.items() if not k == 'cls'
+                    })
+            else:
+                return {
+                    key: self._build_augmentation(value, root=False)
+                    for key, value in args.items()
+                }
+        raise RuntimeError('unknown augmenter arg: ' + str(args))
+
+    def _to_tuple_if_list(self, obj: Any) -> Any:
+        """Convert an object into a tuple if it is a list."""
+        if isinstance(obj, list):
+            return tuple(obj)
+        return obj
+
+    def __repr__(self):
+        repr_str = self.__class__.__name__
+        repr_str += f'(args = {self.args}, '
+        repr_str += f'fix_poly_trans = {self.fix_poly_trans})'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class TorchVisionWrapper(BaseTransform):
+    """A wrapper around torchvision transforms. It applies specific transform
+    to ``img`` and updates ``height`` and ``width`` accordingly.
+
+    Required Keys:
+
+    - img (ndarray): The input image.
+
+    Modified Keys:
+
+    - img (ndarray): The modified image.
+    - img_shape (tuple(int, int)): The shape of the image in (height, width).
+
+
+    Warning:
+        This transform only affects the image but not its associated
+        annotations, such as word bounding boxes and polygons. Therefore,
+        it may only be applicable to text recognition tasks.
+
+    Args:
+        op (str): The name of any transform class in
+            :func:`torchvision.transforms`.
+        **kwargs: Arguments that will be passed to initializer of torchvision
+            transform.
+    """
+
+    def __init__(self, op: str, **kwargs) -> None:
+        assert isinstance(op, str)
+        obj_cls = getattr(torchvision_transforms, op)
+        self.torchvision = obj_cls(**kwargs)
+        self.op = op
+        self.kwargs = kwargs
+
+    def transform(self, results):
+        """Transform the image.
+
+        Args:
+            results (dict): Result dict from the data loader.
+
+        Returns:
+            dict: Transformed results.
+        """
+        assert 'img' in results
+        # BGR -> RGB
+        img = results['img'][..., ::-1]
+        img = Image.fromarray(img)
+        img = self.torchvision(img)
+        img = np.asarray(img)
+        img = img[..., ::-1]
+        results['img'] = img
+        results['img_shape'] = img.shape[:2]
+        return results
+
+    def __repr__(self):
+        repr_str = self.__class__.__name__
+        repr_str += f'(op = {self.op}'
+        for k, v in self.kwargs.items():
+            repr_str += f', {k} = {v}'
+        repr_str += ')'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class ConditionApply(BaseTransform):
+    """Apply transforms according to the condition. If the condition is met,
+    true_transforms will be applied, otherwise false_transforms will be
+    applied.
+
+    Args:
+        condition (str): The string that can be evaluated to a boolean value.
+        true_transforms (list[dict]): Transforms to be applied if the condition
+            is met. Defaults to [].
+        false_transforms (list[dict]): Transforms to be applied if the
+            condition is not met. Defaults to [].
+    """
+
+    def __init__(self,
+                 condition: str,
+                 true_transforms: Union[Dict, List[Dict]] = [],
+                 false_transforms: Union[Dict, List[Dict]] = []):
+        self.condition = condition
+        self.true_transforms = Compose(true_transforms)
+        self.false_transforms = Compose(false_transforms)
+
+    def transform(self, results: Dict) -> Optional[Dict]:
+        """Transform the image.
+
+        Args:
+            results (dict):Result dict containing the data to transform.
+
+        Returns:
+            dict: Transformed results.
+        """
+        if eval(self.condition):
+            return self.true_transforms(results)  # type: ignore
+        else:
+            return self.false_transforms(results)
+
+    def __repr__(self):
+        repr_str = self.__class__.__name__
+        repr_str += f'(condition = {self.condition}, '
+        repr_str += f'true_transforms = {self.true_transforms}, '
+        repr_str += f'false_transforms = {self.false_transforms})'
+        return repr_str
diff --git a/mmocr-dev-1.x/mmocr/datasets/wildreceipt_dataset.py b/mmocr-dev-1.x/mmocr/datasets/wildreceipt_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..5f8699a043b893be2f826a760b81e8d939719a99
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/datasets/wildreceipt_dataset.py
@@ -0,0 +1,286 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+from typing import Callable, List, Optional, Sequence, Union
+
+import numpy as np
+from mmengine.dataset import BaseDataset
+from mmengine.fileio import list_from_file
+
+from mmocr.registry import DATASETS
+from mmocr.utils.parsers import LineJsonParser
+from mmocr.utils.polygon_utils import sort_vertex8
+
+
+@DATASETS.register_module()
+class WildReceiptDataset(BaseDataset):
+    """WildReceipt Dataset for key information extraction. There are two files
+    to be loaded: metainfo and annotation. The metainfo file contains the
+    mapping between classes and labels. The annotation file contains the all
+    necessary information about the image, such as bounding boxes, texts, and
+    labels etc.
+
+    The metainfo file is a text file with the following format:
+
+    .. code-block:: none
+
+        0 Ignore
+        1 Store_name_value
+        2 Store_name_key
+
+    The annotation format is shown as follows.
+
+    .. code-block:: json
+
+        {
+            "file_name": "a.jpeg",
+            "height": 348,
+            "width": 348,
+            "annotations": [
+                {
+                    "box": [
+                        114.0,
+                        19.0,
+                        230.0,
+                        19.0,
+                        230.0,
+                        1.0,
+                        114.0,
+                        1.0
+                    ],
+                    "text": "CHOEUN",
+                    "label": 1
+                },
+                {
+                    "box": [
+                        97.0,
+                        35.0,
+                        236.0,
+                        35.0,
+                        236.0,
+                        19.0,
+                        97.0,
+                        19.0
+                    ],
+                    "text": "KOREANRESTAURANT",
+                    "label": 2
+                }
+            ]
+        }
+
+    Args:
+        directed (bool): Whether to use directed graph. Defaults to False.
+        ann_file (str): Annotation file path. Defaults to ''.
+        metainfo (str or dict, optional): Meta information for dataset, such as
+            class information. If it's a string, it will be treated as a path
+            to the class file from which the class information will be loaded.
+            Defaults to None.
+        data_root (str, optional): The root directory for ``data_prefix`` and
+            ``ann_file``. Defaults to ''.
+        data_prefix (dict, optional): Prefix for training data. Defaults to
+            dict(img_path='').
+        filter_cfg (dict, optional): Config for filter data. Defaults to None.
+        indices (int or Sequence[int], optional): Support using first few
+            data in annotation file to facilitate training/testing on a smaller
+            dataset. Defaults to None which means using all ``data_infos``.
+        serialize_data (bool, optional): Whether to hold memory using
+            serialized objects, when enabled, data loader workers can use
+            shared RAM from master process instead of making a copy. Defaults
+            to True.
+        pipeline (list, optional): Processing pipeline. Defaults to [].
+        test_mode (bool, optional): ``test_mode=True`` means in test phase.
+            Defaults to False.
+        lazy_init (bool, optional): Whether to load annotation during
+            instantiation. In some cases, such as visualization, only the meta
+            information of the dataset is needed, which is not necessary to
+            load annotation file. ``Basedataset`` can skip load annotations to
+            save time by set ``lazy_init=False``. Defaults to False.
+        max_refetch (int, optional): If ``Basedataset.prepare_data`` get a
+            None img. The maximum extra number of cycles to get a valid
+            image. Defaults to 1000.
+    """
+    METAINFO = {
+        'category': [{
+            'id': '0',
+            'name': 'Ignore'
+        }, {
+            'id': '1',
+            'name': 'Store_name_value'
+        }, {
+            'id': '2',
+            'name': 'Store_name_key'
+        }, {
+            'id': '3',
+            'name': 'Store_addr_value'
+        }, {
+            'id': '4',
+            'name': 'Store_addr_key'
+        }, {
+            'id': '5',
+            'name': 'Tel_value'
+        }, {
+            'id': '6',
+            'name': 'Tel_key'
+        }, {
+            'id': '7',
+            'name': 'Date_value'
+        }, {
+            'id': '8',
+            'name': 'Date_key'
+        }, {
+            'id': '9',
+            'name': 'Time_value'
+        }, {
+            'id': '10',
+            'name': 'Time_key'
+        }, {
+            'id': '11',
+            'name': 'Prod_item_value'
+        }, {
+            'id': '12',
+            'name': 'Prod_item_key'
+        }, {
+            'id': '13',
+            'name': 'Prod_quantity_value'
+        }, {
+            'id': '14',
+            'name': 'Prod_quantity_key'
+        }, {
+            'id': '15',
+            'name': 'Prod_price_value'
+        }, {
+            'id': '16',
+            'name': 'Prod_price_key'
+        }, {
+            'id': '17',
+            'name': 'Subtotal_value'
+        }, {
+            'id': '18',
+            'name': 'Subtotal_key'
+        }, {
+            'id': '19',
+            'name': 'Tax_value'
+        }, {
+            'id': '20',
+            'name': 'Tax_key'
+        }, {
+            'id': '21',
+            'name': 'Tips_value'
+        }, {
+            'id': '22',
+            'name': 'Tips_key'
+        }, {
+            'id': '23',
+            'name': 'Total_value'
+        }, {
+            'id': '24',
+            'name': 'Total_key'
+        }, {
+            'id': '25',
+            'name': 'Others'
+        }]
+    }
+
+    def __init__(self,
+                 directed: bool = False,
+                 ann_file: str = '',
+                 metainfo: Optional[Union[dict, str]] = None,
+                 data_root: str = '',
+                 data_prefix: dict = dict(img_path=''),
+                 filter_cfg: Optional[dict] = None,
+                 indices: Optional[Union[int, Sequence[int]]] = None,
+                 serialize_data: bool = True,
+                 pipeline: List[Union[dict, Callable]] = ...,
+                 test_mode: bool = False,
+                 lazy_init: bool = False,
+                 max_refetch: int = 1000):
+        self.directed = directed
+        super().__init__(ann_file, metainfo, data_root, data_prefix,
+                         filter_cfg, indices, serialize_data, pipeline,
+                         test_mode, lazy_init, max_refetch)
+        self._metainfo['dataset_type'] = 'WildReceiptDataset'
+        self._metainfo['task_name'] = 'KIE'
+
+    @classmethod
+    def _load_metainfo(cls, metainfo: Union[str, dict] = None) -> dict:
+        """Collect meta information from path to the class list or the
+        dictionary of meta.
+
+        Args:
+            metainfo (str or dict): Path to the class list, or a meta
+            information dict. If ``metainfo`` contains existed filename, it
+            will be parsed by ``list_from_file``.
+
+        Returns:
+            dict: Parsed meta information.
+        """
+        cls_metainfo = copy.deepcopy(cls.METAINFO)
+        if isinstance(metainfo, str):
+            cls_metainfo['category'] = []
+            for line in list_from_file(metainfo):
+                k, v = line.split()
+                cls_metainfo['category'].append({'id': k, 'name': v})
+            return cls_metainfo
+        else:
+            return super()._load_metainfo(metainfo)
+
+    def load_data_list(self) -> List[dict]:
+        """Load data list from annotation file.
+
+        Returns:
+            List[dict]: A list of annotation dict.
+        """
+        parser = LineJsonParser(
+            keys=['file_name', 'height', 'width', 'annotations'])
+        data_list = []
+        for line in list_from_file(self.ann_file):
+            data_info = parser(line)
+            data_info = self.parse_data_info(data_info)
+            data_list.append(data_info)
+        return data_list
+
+    def parse_data_info(self, raw_data_info: dict) -> dict:
+        """Parse data info from raw data info.
+
+        Args:
+            raw_data_info (dict): Raw data info.
+
+        Returns:
+            dict: Parsed data info.
+
+            - img_path (str): Path to the image.
+            - img_shape (tuple(int, int)): Image shape in (H, W).
+            - instances (list[dict]): A list of instances.
+              - bbox (ndarray(dtype=np.float32)): Shape (4, ). Bounding box.
+              - text (str): Annotation text.
+              - edge_label (int): Edge label.
+              - bbox_label (int): Bounding box label.
+        """
+
+        raw_data_info['img_path'] = raw_data_info['file_name']
+        data_info = super().parse_data_info(raw_data_info)
+        annotations = data_info['annotations']
+
+        assert 'box' in annotations[0]
+        assert 'text' in annotations[0]
+
+        instances = []
+
+        for ann in annotations:
+            instance = {}
+            bbox = np.array(sort_vertex8(ann['box']), dtype=np.int32)
+            bbox = np.array([
+                bbox[0::2].min(), bbox[1::2].min(), bbox[0::2].max(),
+                bbox[1::2].max()
+            ],
+                            dtype=np.int32)
+
+            instance['bbox'] = bbox
+            instance['text'] = ann['text']
+            instance['bbox_label'] = ann.get('label', 0)
+            instance['edge_label'] = ann.get('edge', 0)
+            instances.append(instance)
+
+        return dict(
+            instances=instances,
+            img_path=data_info['img_path'],
+            img_shape=(data_info['height'], data_info['width']))
diff --git a/mmocr-dev-1.x/mmocr/engine/__init__.py b/mmocr-dev-1.x/mmocr/engine/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..1944bc1e57726ec1922b1e97fb69a75df9c384fe
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/engine/__init__.py
@@ -0,0 +1,2 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .hooks import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/engine/hooks/__init__.py b/mmocr-dev-1.x/mmocr/engine/hooks/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..62d8c9e56449a003b0b8ad186c4c18e4743c0906
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/engine/hooks/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .visualization_hook import VisualizationHook
+
+__all__ = ['VisualizationHook']
diff --git a/mmocr-dev-1.x/mmocr/engine/hooks/visualization_hook.py b/mmocr-dev-1.x/mmocr/engine/hooks/visualization_hook.py
new file mode 100644
index 0000000000000000000000000000000000000000..2bbc6aaf490b1a1804afe54dd078a1f63224d391
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/engine/hooks/visualization_hook.py
@@ -0,0 +1,130 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import Optional, Sequence, Union
+
+import mmcv
+import mmengine.fileio as fileio
+from mmengine.hooks import Hook
+from mmengine.runner import Runner
+from mmengine.visualization import Visualizer
+
+from mmocr.registry import HOOKS
+from mmocr.structures import TextDetDataSample, TextRecogDataSample
+
+
+# TODO Files with the same name will be overwritten for multi datasets
+@HOOKS.register_module()
+class VisualizationHook(Hook):
+    """Detection Visualization Hook. Used to visualize validation and testing
+    process prediction results.
+
+    Args:
+        enable (bool): Whether to enable this hook. Defaults to False.
+        interval (int): The interval of visualization. Defaults to 50.
+        score_thr (float): The threshold to visualize the bboxes
+            and masks. It's only useful for text detection. Defaults to 0.3.
+        show (bool): Whether to display the drawn image. Defaults to False.
+        wait_time (float): The interval of show in seconds. Defaults
+            to 0.
+        backend_args (dict, optional): Instantiates the corresponding file
+            backend. It may contain `backend` key to specify the file
+            backend. If it contains, the file backend corresponding to this
+            value will be used and initialized with the remaining values,
+            otherwise the corresponding file backend will be selected
+            based on the prefix of the file path. Defaults to None.
+    """
+
+    def __init__(
+        self,
+        enable: bool = False,
+        interval: int = 50,
+        score_thr: float = 0.3,
+        show: bool = False,
+        draw_pred: bool = False,
+        draw_gt: bool = False,
+        wait_time: float = 0.,
+        backend_args: Optional[dict] = None,
+    ) -> None:
+        self._visualizer: Visualizer = Visualizer.get_current_instance()
+        self.interval = interval
+        self.score_thr = score_thr
+        self.show = show
+        self.draw_pred = draw_pred
+        self.draw_gt = draw_gt
+        self.wait_time = wait_time
+        self.backend_args = backend_args
+        self.enable = enable
+
+    # TODO after MultiDatasetWrapper, rewrites this function and try to merge
+    # with after_val_iter and after_test_iter
+    def after_val_iter(self, runner: Runner, batch_idx: int,
+                       data_batch: Sequence[dict],
+                       outputs: Sequence[Union[TextDetDataSample,
+                                               TextRecogDataSample]]) -> None:
+        """Run after every ``self.interval`` validation iterations.
+
+        Args:
+            runner (:obj:`Runner`): The runner of the validation process.
+            batch_idx (int): The index of the current batch in the val loop.
+            data_batch (Sequence[dict]): Data from dataloader.
+            outputs (Sequence[:obj:`TextDetDataSample` or
+                :obj:`TextRecogDataSample`]): Outputs from model.
+        """
+        # TODO: data_batch does not include annotation information
+        if self.enable is False:
+            return
+
+        # There is no guarantee that the same batch of images
+        # is visualized for each evaluation.
+        total_curr_iter = runner.iter + batch_idx
+
+        # Visualize only the first data
+        if total_curr_iter % self.interval == 0:
+            for output in outputs:
+                img_path = output.img_path
+                img_bytes = fileio.get(
+                    img_path, backend_args=self.backend_args)
+                img = mmcv.imfrombytes(img_bytes, channel_order='rgb')
+                self._visualizer.add_datasample(
+                    osp.splitext(osp.basename(img_path))[0],
+                    img,
+                    data_sample=output,
+                    draw_gt=self.draw_gt,
+                    draw_pred=self.draw_pred,
+                    show=self.show,
+                    wait_time=self.wait_time,
+                    pred_score_thr=self.score_thr,
+                    step=total_curr_iter)
+
+    def after_test_iter(self, runner: Runner, batch_idx: int,
+                        data_batch: Sequence[dict],
+                        outputs: Sequence[Union[TextDetDataSample,
+                                                TextRecogDataSample]]) -> None:
+        """Run after every testing iterations.
+
+        Args:
+            runner (:obj:`Runner`): The runner of the testing process.
+            batch_idx (int): The index of the current batch in the val loop.
+            data_batch (Sequence[dict]): Data from dataloader.
+            outputs (Sequence[:obj:`TextDetDataSample` or
+                :obj:`TextRecogDataSample`]): Outputs from model.
+        """
+
+        if self.enable is False:
+            return
+
+        for output in outputs:
+            img_path = output.img_path
+            img_bytes = fileio.get(img_path, backend_args=self.backend_args)
+            img = mmcv.imfrombytes(img_bytes, channel_order='rgb')
+
+            self._visualizer.add_datasample(
+                osp.splitext(osp.basename(img_path))[0],
+                img,
+                data_sample=output,
+                show=self.show,
+                draw_gt=self.draw_gt,
+                draw_pred=self.draw_pred,
+                wait_time=self.wait_time,
+                pred_score_thr=self.score_thr,
+                step=batch_idx)
diff --git a/mmocr-dev-1.x/mmocr/evaluation/__init__.py b/mmocr-dev-1.x/mmocr/evaluation/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..40cd21686174fe2831ab8bc0693e283297955125
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/__init__.py
@@ -0,0 +1,3 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .evaluator import *  # NOQA
+from .metrics import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/evaluation/evaluator/__init__.py b/mmocr-dev-1.x/mmocr/evaluation/evaluator/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..6b13fe99548e7e2e4c6e196a2da22b9c8cbec8a3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/evaluator/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .multi_datasets_evaluator import MultiDatasetsEvaluator
+
+__all__ = ['MultiDatasetsEvaluator']
diff --git a/mmocr-dev-1.x/mmocr/evaluation/evaluator/multi_datasets_evaluator.py b/mmocr-dev-1.x/mmocr/evaluation/evaluator/multi_datasets_evaluator.py
new file mode 100644
index 0000000000000000000000000000000000000000..f01aa70f645d5a9f61fe02386ff214dc72bcffb4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/evaluator/multi_datasets_evaluator.py
@@ -0,0 +1,100 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from collections import OrderedDict
+from typing import Sequence, Union
+
+from mmengine.dist import (broadcast_object_list, collect_results,
+                           is_main_process)
+from mmengine.evaluator import BaseMetric, Evaluator
+from mmengine.evaluator.metric import _to_cpu
+
+from mmocr.registry import EVALUATOR
+from mmocr.utils.typing_utils import ConfigType
+
+
+@EVALUATOR.register_module()
+class MultiDatasetsEvaluator(Evaluator):
+    """Wrapper class to compose class: `ConcatDataset` and multiple
+    :class:`BaseMetric` instances.
+    The metrics will be evaluated on each dataset slice separately. The name of
+    the each metric is the concatenation of the dataset prefix, the metric
+    prefix and the key of metric - e.g.
+    `dataset_prefix/metric_prefix/accuracy`.
+
+    Args:
+        metrics (dict or BaseMetric or Sequence): The config of metrics.
+        dataset_prefixes (Sequence[str]): The prefix of each dataset. The
+            length of this sequence should be the same as the length of the
+            datasets.
+    """
+
+    def __init__(self, metrics: Union[ConfigType, BaseMetric, Sequence],
+                 dataset_prefixes: Sequence[str]) -> None:
+        super().__init__(metrics)
+        self.dataset_prefixes = dataset_prefixes
+
+    def evaluate(self, size: int) -> dict:
+        """Invoke ``evaluate`` method of each metric and collect the metrics
+        dictionary.
+
+        Args:
+            size (int): Length of the entire validation dataset. When batch
+                size > 1, the dataloader may pad some data samples to make
+                sure all ranks have the same length of dataset slice. The
+                ``collect_results`` function will drop the padded data based on
+                this size.
+
+        Returns:
+            dict: Evaluation results of all metrics. The keys are the names
+            of the metrics, and the values are corresponding results.
+        """
+        metrics_results = OrderedDict()
+        dataset_slices = self.dataset_meta.get('cumulative_sizes', [size])
+        assert len(dataset_slices) == len(self.dataset_prefixes)
+        for metric in self.metrics:
+            if len(metric.results) == 0:
+                warnings.warn(
+                    f'{metric.__class__.__name__} got empty `self.results`.'
+                    'Please ensure that the processed results are properly '
+                    'added into `self.results` in `process` method.')
+
+            results = collect_results(metric.results, size,
+                                      metric.collect_device)
+
+            if is_main_process():
+                # cast all tensors in results list to cpu
+                results = _to_cpu(results)
+                for start, end, dataset_prefix in zip([0] +
+                                                      dataset_slices[:-1],
+                                                      dataset_slices,
+                                                      self.dataset_prefixes):
+                    metric_results = metric.compute_metrics(
+                        results[start:end])  # type: ignore
+                    # Add prefix to metric names
+
+                    if metric.prefix:
+                        final_prefix = '/'.join(
+                            (dataset_prefix, metric.prefix))
+                    else:
+                        final_prefix = dataset_prefix
+                    metric_results = {
+                        '/'.join((final_prefix, k)): v
+                        for k, v in metric_results.items()
+                    }
+
+                    # Check metric name conflicts
+                    for name in metric_results.keys():
+                        if name in metrics_results:
+                            raise ValueError(
+                                'There are multiple evaluation results with '
+                                f'the same metric name {name}. Please make '
+                                'sure all metrics have different prefixes.')
+                    metrics_results.update(metric_results)
+            metric.results.clear()
+        if is_main_process():
+            metrics_results = [metrics_results]
+        else:
+            metrics_results = [None]  # type: ignore
+        broadcast_object_list(metrics_results)
+
+        return metrics_results[0]
diff --git a/mmocr-dev-1.x/mmocr/evaluation/functional/__init__.py b/mmocr-dev-1.x/mmocr/evaluation/functional/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..6aaf75768924bef3e7ad6dc1c9d6d0161aab9879
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/functional/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .hmean import compute_hmean
+
+__all__ = ['compute_hmean']
diff --git a/mmocr-dev-1.x/mmocr/evaluation/functional/hmean.py b/mmocr-dev-1.x/mmocr/evaluation/functional/hmean.py
new file mode 100644
index 0000000000000000000000000000000000000000..d3aabf4c2804ca4d6df43e2699890e682f4f713c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/functional/hmean.py
@@ -0,0 +1,42 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+
+def compute_hmean(accum_hit_recall, accum_hit_prec, gt_num, pred_num):
+    # TODO Add typehints
+    """Compute hmean given hit number, ground truth number and prediction
+    number.
+
+    Args:
+        accum_hit_recall (int|float): Accumulated hits for computing recall.
+        accum_hit_prec (int|float): Accumulated hits for computing precision.
+        gt_num (int): Ground truth number.
+        pred_num (int): Prediction number.
+
+    Returns:
+        recall (float):  The recall value.
+        precision (float): The precision value.
+        hmean (float): The hmean value.
+    """
+
+    assert isinstance(accum_hit_recall, (float, int))
+    assert isinstance(accum_hit_prec, (float, int))
+
+    assert isinstance(gt_num, int)
+    assert isinstance(pred_num, int)
+    assert accum_hit_recall >= 0.0
+    assert accum_hit_prec >= 0.0
+    assert gt_num >= 0.0
+    assert pred_num >= 0.0
+
+    if gt_num == 0:
+        recall = 1.0
+        precision = 0.0 if pred_num > 0 else 1.0
+    else:
+        recall = float(accum_hit_recall) / gt_num
+        precision = 0.0 if pred_num == 0 else float(accum_hit_prec) / pred_num
+
+    denom = recall + precision
+
+    hmean = 0.0 if denom == 0 else (2.0 * precision * recall / denom)
+
+    return recall, precision, hmean
diff --git a/mmocr-dev-1.x/mmocr/evaluation/metrics/__init__.py b/mmocr-dev-1.x/mmocr/evaluation/metrics/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..3b10f4b2ac720e096db27b7e54dcc75611f92dfa
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/metrics/__init__.py
@@ -0,0 +1,9 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .f_metric import F1Metric
+from .hmean_iou_metric import HmeanIOUMetric
+from .recog_metric import CharMetric, OneMinusNEDMetric, WordMetric
+
+__all__ = [
+    'WordMetric', 'CharMetric', 'OneMinusNEDMetric', 'HmeanIOUMetric',
+    'F1Metric'
+]
diff --git a/mmocr-dev-1.x/mmocr/evaluation/metrics/f_metric.py b/mmocr-dev-1.x/mmocr/evaluation/metrics/f_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..e021ed6b73d059cc15c5255e947c1ff0a5d895ea
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/metrics/f_metric.py
@@ -0,0 +1,164 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+from mmengine.evaluator import BaseMetric
+
+from mmocr.registry import METRICS
+
+
+@METRICS.register_module()
+class F1Metric(BaseMetric):
+    """Compute F1 scores.
+
+    Args:
+        num_classes (int): Number of labels.
+        key (str): The key name of the predicted and ground truth labels.
+            Defaults to 'labels'.
+        mode (str or list[str]): Options are:
+            - 'micro': Calculate metrics globally by counting the total true
+              positives, false negatives and false positives.
+            - 'macro': Calculate metrics for each label, and find their
+              unweighted mean.
+            If mode is a list, then metrics in mode will be calculated
+            separately. Defaults to 'micro'.
+        cared_classes (list[int]): The indices of the labels particpated in
+            the metirc computing. If both ``cared_classes`` and
+            ``ignored_classes`` are empty, all classes will be taken into
+            account. Defaults to []. Note: ``cared_classes`` and
+            ``ignored_classes`` cannot be specified together.
+        ignored_classes (list[int]): The index set of labels that are ignored
+            when computing metrics. If both ``cared_classes`` and
+            ``ignored_classes`` are empty, all classes will be taken into
+            account. Defaults to []. Note: ``cared_classes`` and
+            ``ignored_classes`` cannot be specified together.
+        collect_device (str): Device name used for collecting results from
+            different ranks during distributed training. Must be 'cpu' or
+            'gpu'. Defaults to 'cpu'.
+        prefix (str, optional): The prefix that will be added in the metric
+            names to disambiguate homonymous metrics of different evaluators.
+            If prefix is not provided in the argument, self.default_prefix
+            will be used instead. Defaults to None.
+
+    Warning:
+        Only non-negative integer labels are involved in computing. All
+        negative ground truth labels will be ignored.
+    """
+
+    default_prefix: Optional[str] = 'kie'
+
+    def __init__(self,
+                 num_classes: int,
+                 key: str = 'labels',
+                 mode: Union[str, Sequence[str]] = 'micro',
+                 cared_classes: Sequence[int] = [],
+                 ignored_classes: Sequence[int] = [],
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = None) -> None:
+        super().__init__(collect_device, prefix)
+        assert isinstance(num_classes, int)
+        assert isinstance(cared_classes, (list, tuple))
+        assert isinstance(ignored_classes, (list, tuple))
+        assert isinstance(mode, (list, str))
+        assert not (len(cared_classes) > 0 and len(ignored_classes) > 0), \
+            'cared_classes and ignored_classes cannot be both non-empty'
+
+        if isinstance(mode, str):
+            mode = [mode]
+        assert set(mode).issubset({'micro', 'macro'})
+        self.mode = mode
+
+        if len(cared_classes) > 0:
+            assert min(cared_classes) >= 0 and \
+                max(cared_classes) < num_classes, \
+                'cared_classes must be a subset of [0, num_classes)'
+            self.cared_labels = sorted(cared_classes)
+        elif len(ignored_classes) > 0:
+            assert min(ignored_classes) >= 0 and \
+                max(ignored_classes) < num_classes, \
+                'ignored_classes must be a subset of [0, num_classes)'
+            self.cared_labels = sorted(
+                set(range(num_classes)) - set(ignored_classes))
+        else:
+            self.cared_labels = list(range(num_classes))
+        self.num_classes = num_classes
+        self.key = key
+
+    def process(self, data_batch: Sequence[Dict],
+                data_samples: Sequence[Dict]) -> None:
+        """Process one batch of data_samples. The processed results should be
+        stored in ``self.results``, which will be used to compute the metrics
+        when all batches have been processed.
+
+        Args:
+            data_batch (Sequence[Dict]): A batch of gts.
+            data_samples (Sequence[Dict]): A batch of outputs from the model.
+        """
+        for data_sample in data_samples:
+            pred_labels = data_sample.get('pred_instances').get(self.key).cpu()
+            gt_labels = data_sample.get('gt_instances').get(self.key).cpu()
+
+            result = dict(
+                pred_labels=pred_labels.flatten(),
+                gt_labels=gt_labels.flatten())
+            self.results.append(result)
+
+    def compute_metrics(self, results: Sequence[Dict]) -> Dict:
+        """Compute the metrics from processed results.
+
+        Args:
+            results (list[Dict]): The processed results of each batch.
+
+        Returns:
+            dict[str, float]: The f1 scores. The keys are the names of the
+                metrics, and the values are corresponding results. Possible
+                keys are 'micro_f1' and 'macro_f1'.
+        """
+
+        preds = []
+        gts = []
+        for result in results:
+            preds.append(result['pred_labels'])
+            gts.append(result['gt_labels'])
+        preds = torch.cat(preds)
+        gts = torch.cat(gts)
+
+        assert preds.max() < self.num_classes
+        assert gts.max() < self.num_classes
+
+        cared_labels = preds.new_tensor(self.cared_labels, dtype=torch.long)
+
+        hits = (preds == gts)[None, :]
+        preds_per_label = cared_labels[:, None] == preds[None, :]
+        gts_per_label = cared_labels[:, None] == gts[None, :]
+
+        tp = (hits * preds_per_label).float()
+        fp = (~hits * preds_per_label).float()
+        fn = (~hits * gts_per_label).float()
+
+        result = {}
+        if 'macro' in self.mode:
+            result['macro_f1'] = self._compute_f1(
+                tp.sum(-1), fp.sum(-1), fn.sum(-1))
+        if 'micro' in self.mode:
+            result['micro_f1'] = self._compute_f1(tp.sum(), fp.sum(), fn.sum())
+
+        return result
+
+    def _compute_f1(self, tp: torch.Tensor, fp: torch.Tensor,
+                    fn: torch.Tensor) -> float:
+        """Compute the F1-score based on the true positives, false positives
+        and false negatives.
+
+        Args:
+            tp (Tensor): The true positives.
+            fp (Tensor): The false positives.
+            fn (Tensor): The false negatives.
+
+        Returns:
+            float: The F1-score.
+        """
+        precision = tp / (tp + fp).clamp(min=1e-8)
+        recall = tp / (tp + fn).clamp(min=1e-8)
+        f1 = 2 * precision * recall / (precision + recall).clamp(min=1e-8)
+        return float(f1.mean())
diff --git a/mmocr-dev-1.x/mmocr/evaluation/metrics/hmean_iou_metric.py b/mmocr-dev-1.x/mmocr/evaluation/metrics/hmean_iou_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..c5d40971cd965d0f8fcac2247e4859c40bc1760e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/metrics/hmean_iou_metric.py
@@ -0,0 +1,225 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence
+
+import numpy as np
+import torch
+from mmengine.evaluator import BaseMetric
+from mmengine.logging import MMLogger
+from scipy.sparse import csr_matrix
+from scipy.sparse.csgraph import maximum_bipartite_matching
+from shapely.geometry import Polygon
+
+from mmocr.evaluation.functional import compute_hmean
+from mmocr.registry import METRICS
+from mmocr.utils import poly_intersection, poly_iou, polys2shapely
+
+
+@METRICS.register_module()
+class HmeanIOUMetric(BaseMetric):
+    """HmeanIOU metric.
+
+    This method computes the hmean iou metric, which is done in the
+    following steps:
+
+    - Filter the prediction polygon:
+
+      - Scores is smaller than minimum prediction score threshold.
+      - The proportion of the area that intersects with gt ignored polygon is
+        greater than ignore_precision_thr.
+
+    - Computing an M x N IoU matrix, where each element indexing
+      E_mn represents the IoU between the m-th valid GT and n-th valid
+      prediction.
+    - Based on different prediction score threshold:
+      - Obtain the ignored predictions according to prediction score.
+        The filtered predictions will not be involved in the later metric
+        computations.
+      - Based on the IoU matrix, get the match metric according to
+      ``match_iou_thr``.
+      - Based on different `strategy`, accumulate the match number.
+    - calculate H-mean under different prediction score threshold.
+
+    Args:
+        match_iou_thr (float): IoU threshold for a match. Defaults to 0.5.
+        ignore_precision_thr (float): Precision threshold when prediction and\
+            gt ignored polygons are matched. Defaults to 0.5.
+        pred_score_thrs (dict): Best prediction score threshold searching
+            space. Defaults to dict(start=0.3, stop=0.9, step=0.1).
+        strategy (str): Polygon matching strategy. Options are 'max_matching'
+            and 'vanilla'. 'max_matching' refers to the optimum strategy that
+            maximizes the number of matches. Vanilla strategy matches gt and
+            pred polygons if both of them are never matched before. It was used
+            in MMOCR 0.x and and academia. Defaults to 'vanilla'.
+        collect_device (str): Device name used for collecting results from
+            different ranks during distributed training. Must be 'cpu' or
+            'gpu'. Defaults to 'cpu'.
+        prefix (str, optional): The prefix that will be added in the metric
+            names to disambiguate homonymous metrics of different evaluators.
+            If prefix is not provided in the argument, self.default_prefix
+            will be used instead. Defaults to None
+    """
+    default_prefix: Optional[str] = 'icdar'
+
+    def __init__(self,
+                 match_iou_thr: float = 0.5,
+                 ignore_precision_thr: float = 0.5,
+                 pred_score_thrs: Dict = dict(start=0.3, stop=0.9, step=0.1),
+                 strategy: str = 'vanilla',
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = None) -> None:
+        super().__init__(collect_device=collect_device, prefix=prefix)
+        self.match_iou_thr = match_iou_thr
+        self.ignore_precision_thr = ignore_precision_thr
+        self.pred_score_thrs = np.arange(**pred_score_thrs)
+        assert strategy in ['max_matching', 'vanilla']
+        self.strategy = strategy
+
+    def process(self, data_batch: Sequence[Dict],
+                data_samples: Sequence[Dict]) -> None:
+        """Process one batch of data samples and predictions. The processed
+        results should be stored in ``self.results``, which will be used to
+        compute the metrics when all batches have been processed.
+
+        Args:
+            data_batch (Sequence[Dict]): A batch of data from dataloader.
+            data_samples (Sequence[Dict]): A batch of outputs from
+                the model.
+        """
+        for data_sample in data_samples:
+
+            pred_instances = data_sample.get('pred_instances')
+            pred_polygons = pred_instances.get('polygons')
+            pred_scores = pred_instances.get('scores')
+            if isinstance(pred_scores, torch.Tensor):
+                pred_scores = pred_scores.cpu().numpy()
+            pred_scores = np.array(pred_scores, dtype=np.float32)
+
+            gt_instances = data_sample.get('gt_instances')
+            gt_polys = gt_instances.get('polygons')
+            gt_ignore_flags = gt_instances.get('ignored')
+            if isinstance(gt_ignore_flags, torch.Tensor):
+                gt_ignore_flags = gt_ignore_flags.cpu().numpy()
+            gt_polys = polys2shapely(gt_polys)
+            pred_polys = polys2shapely(pred_polygons)
+
+            pred_ignore_flags = self._filter_preds(pred_polys, gt_polys,
+                                                   pred_scores,
+                                                   gt_ignore_flags)
+
+            gt_num = np.sum(~gt_ignore_flags)
+            pred_num = np.sum(~pred_ignore_flags)
+            iou_metric = np.zeros([gt_num, pred_num])
+
+            # Compute IoU scores amongst kept pred and gt polygons
+            for pred_mat_id, pred_poly_id in enumerate(
+                    self._true_indexes(~pred_ignore_flags)):
+                for gt_mat_id, gt_poly_id in enumerate(
+                        self._true_indexes(~gt_ignore_flags)):
+                    iou_metric[gt_mat_id, pred_mat_id] = poly_iou(
+                        gt_polys[gt_poly_id], pred_polys[pred_poly_id])
+
+            result = dict(
+                iou_metric=iou_metric,
+                pred_scores=pred_scores[~pred_ignore_flags])
+            self.results.append(result)
+
+    def compute_metrics(self, results: List[Dict]) -> Dict:
+        """Compute the metrics from processed results.
+
+        Args:
+            results (list[dict]): The processed results of each batch.
+
+        Returns:
+            dict: The computed metrics. The keys are the names of the metrics,
+            and the values are corresponding results.
+        """
+        logger: MMLogger = MMLogger.get_current_instance()
+
+        best_eval_results = dict(hmean=-1)
+        logger.info('Evaluating hmean-iou...')
+
+        dataset_pred_num = np.zeros_like(self.pred_score_thrs)
+        dataset_hit_num = np.zeros_like(self.pred_score_thrs)
+        dataset_gt_num = 0
+
+        for result in results:
+            iou_metric = result['iou_metric']  # (gt_num, pred_num)
+            pred_scores = result['pred_scores']  # (pred_num)
+            dataset_gt_num += iou_metric.shape[0]
+
+            # Filter out predictions by IoU threshold
+            for i, pred_score_thr in enumerate(self.pred_score_thrs):
+                pred_ignore_flags = pred_scores < pred_score_thr
+                # get the number of matched boxes
+                matched_metric = iou_metric[:, ~pred_ignore_flags] \
+                    > self.match_iou_thr
+                if self.strategy == 'max_matching':
+                    csr_matched_metric = csr_matrix(matched_metric)
+                    matched_preds = maximum_bipartite_matching(
+                        csr_matched_metric, perm_type='row')
+                    # -1 denotes unmatched pred polygons
+                    dataset_hit_num[i] += np.sum(matched_preds != -1)
+                else:
+                    # first come first matched
+                    matched_gt_indexes = set()
+                    matched_pred_indexes = set()
+                    for gt_idx, pred_idx in zip(*np.nonzero(matched_metric)):
+                        if gt_idx in matched_gt_indexes or \
+                          pred_idx in matched_pred_indexes:
+                            continue
+                        matched_gt_indexes.add(gt_idx)
+                        matched_pred_indexes.add(pred_idx)
+                    dataset_hit_num[i] += len(matched_gt_indexes)
+                dataset_pred_num[i] += np.sum(~pred_ignore_flags)
+
+        for i, pred_score_thr in enumerate(self.pred_score_thrs):
+            recall, precision, hmean = compute_hmean(
+                int(dataset_hit_num[i]), int(dataset_hit_num[i]),
+                int(dataset_gt_num), int(dataset_pred_num[i]))
+            eval_results = dict(
+                precision=precision, recall=recall, hmean=hmean)
+            logger.info(f'prediction score threshold: {pred_score_thr:.2f}, '
+                        f'recall: {eval_results["recall"]:.4f}, '
+                        f'precision: {eval_results["precision"]:.4f}, '
+                        f'hmean: {eval_results["hmean"]:.4f}\n')
+            if eval_results['hmean'] > best_eval_results['hmean']:
+                best_eval_results = eval_results
+        return best_eval_results
+
+    def _filter_preds(self, pred_polys: List[Polygon], gt_polys: List[Polygon],
+                      pred_scores: List[float],
+                      gt_ignore_flags: np.ndarray) -> np.ndarray:
+        """Filter out the predictions by score threshold and whether it
+        overlaps ignored gt polygons.
+
+        Args:
+            pred_polys (list[Polygon]): Pred polygons.
+            gt_polys (list[Polygon]): GT polygons.
+            pred_scores (list[float]): Pred scores of polygons.
+            gt_ignore_flags (np.ndarray): 1D boolean array indicating
+                the positions of ignored gt polygons.
+
+        Returns:
+            np.ndarray: 1D boolean array indicating the positions of ignored
+            pred polygons.
+        """
+
+        # Filter out predictions based on the minimum score threshold
+        pred_ignore_flags = pred_scores < self.pred_score_thrs.min()
+
+        # Filter out pred polygons which overlaps any ignored gt polygons
+        for pred_id in self._true_indexes(~pred_ignore_flags):
+            for gt_id in self._true_indexes(gt_ignore_flags):
+                # Match pred with ignored gt
+                precision = poly_intersection(
+                    gt_polys[gt_id], pred_polys[pred_id]) / (
+                        pred_polys[pred_id].area + 1e-5)
+                if precision > self.ignore_precision_thr:
+                    pred_ignore_flags[pred_id] = True
+                    break
+
+        return pred_ignore_flags
+
+    def _true_indexes(self, array: np.ndarray) -> np.ndarray:
+        """Get indexes of True elements from a 1D boolean array."""
+        return np.where(array)[0]
diff --git a/mmocr-dev-1.x/mmocr/evaluation/metrics/recog_metric.py b/mmocr-dev-1.x/mmocr/evaluation/metrics/recog_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..a046951211c1c1b7027dce83f9b7b3b7428e2b02
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/evaluation/metrics/recog_metric.py
@@ -0,0 +1,292 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import re
+from difflib import SequenceMatcher
+from typing import Dict, Optional, Sequence, Union
+
+import mmengine
+from mmengine.evaluator import BaseMetric
+from rapidfuzz.distance import Levenshtein
+
+from mmocr.registry import METRICS
+
+
+@METRICS.register_module()
+class WordMetric(BaseMetric):
+    """Word metrics for text recognition task.
+
+    Args:
+        mode (str or list[str]): Options are:
+            - 'exact': Accuracy at word level.
+            - 'ignore_case': Accuracy at word level, ignoring letter
+              case.
+            - 'ignore_case_symbol': Accuracy at word level, ignoring
+              letter case and symbol. (Default metric for academic evaluation)
+            If mode is a list, then metrics in mode will be calculated
+            separately. Defaults to 'ignore_case_symbol'
+        valid_symbol (str): Valid characters. Defaults to
+            '[^A-Z^a-z^0-9^\u4e00-\u9fa5]'
+        collect_device (str): Device name used for collecting results from
+            different ranks during distributed training. Must be 'cpu' or
+            'gpu'. Defaults to 'cpu'.
+        prefix (str, optional): The prefix that will be added in the metric
+            names to disambiguate homonymous metrics of different evaluators.
+            If prefix is not provided in the argument, self.default_prefix
+            will be used instead. Defaults to None.
+    """
+
+    default_prefix: Optional[str] = 'recog'
+
+    def __init__(self,
+                 mode: Union[str, Sequence[str]] = 'ignore_case_symbol',
+                 valid_symbol: str = '[^A-Z^a-z^0-9^\u4e00-\u9fa5]',
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = None) -> None:
+        super().__init__(collect_device, prefix)
+        self.valid_symbol = re.compile(valid_symbol)
+        if isinstance(mode, str):
+            mode = [mode]
+        assert mmengine.is_seq_of(mode, str)
+        assert set(mode).issubset(
+            {'exact', 'ignore_case', 'ignore_case_symbol'})
+        self.mode = set(mode)
+
+    def process(self, data_batch: Sequence[Dict],
+                data_samples: Sequence[Dict]) -> None:
+        """Process one batch of data_samples. The processed results should be
+        stored in ``self.results``, which will be used to compute the metrics
+        when all batches have been processed.
+
+        Args:
+            data_batch (Sequence[Dict]): A batch of gts.
+            data_samples (Sequence[Dict]): A batch of outputs from the model.
+        """
+        for data_sample in data_samples:
+            match_num = 0
+            match_ignore_case_num = 0
+            match_ignore_case_symbol_num = 0
+            pred_text = data_sample.get('pred_text').get('item')
+            gt_text = data_sample.get('gt_text').get('item')
+            if 'ignore_case' in self.mode or 'ignore_case_symbol' in self.mode:
+                pred_text_lower = pred_text.lower()
+                gt_text_lower = gt_text.lower()
+            if 'ignore_case_symbol' in self.mode:
+                gt_text_lower_ignore = self.valid_symbol.sub('', gt_text_lower)
+                pred_text_lower_ignore = self.valid_symbol.sub(
+                    '', pred_text_lower)
+                match_ignore_case_symbol_num =\
+                    gt_text_lower_ignore == pred_text_lower_ignore
+            if 'ignore_case' in self.mode:
+                match_ignore_case_num = pred_text_lower == gt_text_lower
+            if 'exact' in self.mode:
+                match_num = pred_text == gt_text
+            result = dict(
+                match_num=match_num,
+                match_ignore_case_num=match_ignore_case_num,
+                match_ignore_case_symbol_num=match_ignore_case_symbol_num)
+            self.results.append(result)
+
+    def compute_metrics(self, results: Sequence[Dict]) -> Dict:
+        """Compute the metrics from processed results.
+
+        Args:
+            results (list[Dict]): The processed results of each batch.
+
+        Returns:
+            Dict: The computed metrics. The keys are the names of the metrics,
+            and the values are corresponding results.
+        """
+
+        eps = 1e-8
+        eval_res = {}
+        gt_word_num = len(results)
+        if 'exact' in self.mode:
+            match_nums = [result['match_num'] for result in results]
+            match_nums = sum(match_nums)
+            eval_res['word_acc'] = 1.0 * match_nums / (eps + gt_word_num)
+        if 'ignore_case' in self.mode:
+            match_ignore_case_num = [
+                result['match_ignore_case_num'] for result in results
+            ]
+            match_ignore_case_num = sum(match_ignore_case_num)
+            eval_res['word_acc_ignore_case'] = 1.0 *\
+                match_ignore_case_num / (eps + gt_word_num)
+        if 'ignore_case_symbol' in self.mode:
+            match_ignore_case_symbol_num = [
+                result['match_ignore_case_symbol_num'] for result in results
+            ]
+            match_ignore_case_symbol_num = sum(match_ignore_case_symbol_num)
+            eval_res['word_acc_ignore_case_symbol'] = 1.0 *\
+                match_ignore_case_symbol_num / (eps + gt_word_num)
+
+        for key, value in eval_res.items():
+            eval_res[key] = float(f'{value:.4f}')
+        return eval_res
+
+
+@METRICS.register_module()
+class CharMetric(BaseMetric):
+    """Character metrics for text recognition task.
+
+    Args:
+        valid_symbol (str): Valid characters.
+            Defaults to '[^A-Z^a-z^0-9^\u4e00-\u9fa5]'
+        collect_device (str): Device name used for collecting results from
+            different ranks during distributed training. Must be 'cpu' or
+            'gpu'. Defaults to 'cpu'.
+        prefix (str, optional): The prefix that will be added in the metric
+            names to disambiguate homonymous metrics of different evaluators.
+            If prefix is not provided in the argument, self.default_prefix
+            will be used instead. Defaults to None.
+    """
+
+    default_prefix: Optional[str] = 'recog'
+
+    def __init__(self,
+                 valid_symbol: str = '[^A-Z^a-z^0-9^\u4e00-\u9fa5]',
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = None) -> None:
+        super().__init__(collect_device, prefix)
+        self.valid_symbol = re.compile(valid_symbol)
+
+    def process(self, data_batch: Sequence[Dict],
+                data_samples: Sequence[Dict]) -> None:
+        """Process one batch of data_samples. The processed results should be
+        stored in ``self.results``, which will be used to compute the metrics
+        when all batches have been processed.
+
+        Args:
+            data_batch (Sequence[Dict]): A batch of gts.
+            data_samples (Sequence[Dict]): A batch of outputs from the model.
+        """
+        for data_sample in data_samples:
+            pred_text = data_sample.get('pred_text').get('item')
+            gt_text = data_sample.get('gt_text').get('item')
+            gt_text_lower = gt_text.lower()
+            pred_text_lower = pred_text.lower()
+            gt_text_lower_ignore = self.valid_symbol.sub('', gt_text_lower)
+            pred_text_lower_ignore = self.valid_symbol.sub('', pred_text_lower)
+            # number to calculate char level recall & precision
+            result = dict(
+                gt_char_num=len(gt_text_lower_ignore),
+                pred_char_num=len(pred_text_lower_ignore),
+                true_positive_char_num=self._cal_true_positive_char(
+                    pred_text_lower_ignore, gt_text_lower_ignore))
+            self.results.append(result)
+
+    def compute_metrics(self, results: Sequence[Dict]) -> Dict:
+        """Compute the metrics from processed results.
+
+        Args:
+            results (list[Dict]): The processed results of each batch.
+
+        Returns:
+            Dict: The computed metrics. The keys are the names of the
+            metrics, and the values are corresponding results.
+        """
+        gt_char_num = [result['gt_char_num'] for result in results]
+        pred_char_num = [result['pred_char_num'] for result in results]
+        true_positive_char_num = [
+            result['true_positive_char_num'] for result in results
+        ]
+        gt_char_num = sum(gt_char_num)
+        pred_char_num = sum(pred_char_num)
+        true_positive_char_num = sum(true_positive_char_num)
+
+        eps = 1e-8
+        char_recall = 1.0 * true_positive_char_num / (eps + gt_char_num)
+        char_precision = 1.0 * true_positive_char_num / (eps + pred_char_num)
+        eval_res = {}
+        eval_res['char_recall'] = char_recall
+        eval_res['char_precision'] = char_precision
+
+        for key, value in eval_res.items():
+            eval_res[key] = float(f'{value:.4f}')
+        return eval_res
+
+    def _cal_true_positive_char(self, pred: str, gt: str) -> int:
+        """Calculate correct character number in prediction.
+
+        Args:
+            pred (str): Prediction text.
+            gt (str): Ground truth text.
+
+        Returns:
+            true_positive_char_num (int): The true positive number.
+        """
+
+        all_opt = SequenceMatcher(None, pred, gt)
+        true_positive_char_num = 0
+        for opt, _, _, s2, e2 in all_opt.get_opcodes():
+            if opt == 'equal':
+                true_positive_char_num += (e2 - s2)
+            else:
+                pass
+        return true_positive_char_num
+
+
+@METRICS.register_module()
+class OneMinusNEDMetric(BaseMetric):
+    """One minus NED metric for text recognition task.
+
+    Args:
+        valid_symbol (str): Valid characters. Defaults to
+            '[^A-Z^a-z^0-9^\u4e00-\u9fa5]'
+        collect_device (str): Device name used for collecting results from
+            different ranks during distributed training. Must be 'cpu' or
+            'gpu'. Defaults to 'cpu'.
+        prefix (str, optional): The prefix that will be added in the metric
+            names to disambiguate homonymous metrics of different evaluators.
+            If prefix is not provided in the argument, self.default_prefix
+            will be used instead. Defaults to None
+    """
+    default_prefix: Optional[str] = 'recog'
+
+    def __init__(self,
+                 valid_symbol: str = '[^A-Z^a-z^0-9^\u4e00-\u9fa5]',
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = None) -> None:
+        super().__init__(collect_device, prefix)
+        self.valid_symbol = re.compile(valid_symbol)
+
+    def process(self, data_batch: Sequence[Dict],
+                data_samples: Sequence[Dict]) -> None:
+        """Process one batch of data_samples. The processed results should be
+        stored in ``self.results``, which will be used to compute the metrics
+        when all batches have been processed.
+
+        Args:
+            data_batch (Sequence[Dict]): A batch of gts.
+            data_samples (Sequence[Dict]): A batch of outputs from the model.
+        """
+        for data_sample in data_samples:
+            pred_text = data_sample.get('pred_text').get('item')
+            gt_text = data_sample.get('gt_text').get('item')
+            gt_text_lower = gt_text.lower()
+            pred_text_lower = pred_text.lower()
+            gt_text_lower_ignore = self.valid_symbol.sub('', gt_text_lower)
+            pred_text_lower_ignore = self.valid_symbol.sub('', pred_text_lower)
+            norm_ed = Levenshtein.normalized_distance(pred_text_lower_ignore,
+                                                      gt_text_lower_ignore)
+            result = dict(norm_ed=norm_ed)
+            self.results.append(result)
+
+    def compute_metrics(self, results: Sequence[Dict]) -> Dict:
+        """Compute the metrics from processed results.
+
+        Args:
+            results (list[Dict]): The processed results of each batch.
+
+        Returns:
+            Dict: The computed metrics. The keys are the names of the
+            metrics, and the values are corresponding results.
+        """
+
+        gt_word_num = len(results)
+        norm_ed = [result['norm_ed'] for result in results]
+        norm_ed_sum = sum(norm_ed)
+        normalized_edit_distance = norm_ed_sum / max(1, gt_word_num)
+        eval_res = {}
+        eval_res['1-N.E.D'] = 1.0 - normalized_edit_distance
+        for key, value in eval_res.items():
+            eval_res[key] = float(f'{value:.4f}')
+        return eval_res
diff --git a/mmocr-dev-1.x/mmocr/models/__init__.py b/mmocr-dev-1.x/mmocr/models/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..abea668b3d52be16b5fe41ab20e3494885bba297
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .common import *  # NOQA
+from .kie import *  # NOQA
+from .textdet import *  # NOQA
+from .textrecog import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/models/common/__init__.py b/mmocr-dev-1.x/mmocr/models/common/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..30fe928ceced2064bc4adabc5d36291872df4b29
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/__init__.py
@@ -0,0 +1,7 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .backbones import *  # NOQA
+from .dictionary import *  # NOQA
+from .layers import *  # NOQA
+from .losses import *  # NOQA
+from .modules import *  # NOQA
+from .plugins import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/models/common/backbones/__init__.py b/mmocr-dev-1.x/mmocr/models/common/backbones/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..053ed524657ebf335ea622776687291931df2358
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/backbones/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .clip_resnet import CLIPResNet
+from .unet import UNet
+from .vit import VisionTransformer, VisionTransformer_LoRA
+__all__ = ['UNet', 'CLIPResNet', 'VisionTransformer', 'VisionTransformer_LoRA']
diff --git a/mmocr-dev-1.x/mmocr/models/common/backbones/clip_resnet.py b/mmocr-dev-1.x/mmocr/models/common/backbones/clip_resnet.py
new file mode 100644
index 0000000000000000000000000000000000000000..4de20986b7e4ab3031c20d7d1660c3fb5b6894df
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/backbones/clip_resnet.py
@@ -0,0 +1,100 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+import torch.nn as nn
+from mmdet.models.backbones import ResNet
+from mmdet.models.backbones.resnet import Bottleneck
+
+from mmocr.registry import MODELS
+
+
+class CLIPBottleneck(Bottleneck):
+    """Bottleneck for CLIPResNet.
+
+    It is a Bottleneck variant used in the ResNet variant of CLIP. After the
+    second convolution layer, there is an additional average pooling layer with
+    kernel_size 2 and stride 2, which is added as a plugin when the
+    input stride > 1. The stride of each convolution layer is always set to 1.
+
+    Args:
+        **kwargs: Keyword arguments for
+            :class:``mmdet.models.backbones.resnet.Bottleneck``.
+    """
+
+    def __init__(self, **kwargs):
+        stride = kwargs.get('stride', 1)
+        kwargs['stride'] = 1
+        plugins = kwargs.get('plugins', None)
+        if stride > 1:
+            if plugins is None:
+                plugins = []
+
+            plugins.insert(
+                0,
+                dict(
+                    cfg=dict(type='mmocr.AvgPool2d', kernel_size=2),
+                    position='after_conv2'))
+            kwargs['plugins'] = plugins
+        super().__init__(**kwargs)
+
+
+@MODELS.register_module()
+class CLIPResNet(ResNet):
+    """Implement the ResNet variant used in `oCLIP.
+
+    <https://github.com/bytedance/oclip>`_.
+
+    It is also the official structure in
+    `CLIP <https://github.com/openai/CLIP>`_.
+
+    Compared with ResNetV1d structure, CLIPResNet replaces the
+    max pooling layer with an average pooling layer at the end
+    of the input stem.
+
+    In the Bottleneck of CLIPResNet, after the second convolution
+    layer, there is an additional average pooling layer with
+    kernel_size 2 and stride 2, which is added as a plugin
+    when the input stride > 1.
+    The stride of each convolution layer is always set to 1.
+
+    Args:
+        depth (int): Depth of resnet, options are [50]. Defaults to 50.
+        strides (sequence(int)): Strides of the first block of each stage.
+            Defaults to (1, 2, 2, 2).
+        deep_stem (bool): Replace 7x7 conv in input stem with 3 3x3 conv.
+            Defaults to True.
+        avg_down (bool): Use AvgPool instead of stride conv at
+            the downsampling stage in the bottleneck. Defaults to True.
+        **kwargs: Keyword arguments for
+            :class:``mmdet.models.backbones.resnet.ResNet``.
+    """
+    arch_settings = {
+        50: (CLIPBottleneck, (3, 4, 6, 3)),
+    }
+
+    def __init__(self,
+                 depth=50,
+                 strides=(1, 2, 2, 2),
+                 deep_stem=True,
+                 avg_down=True,
+                 **kwargs):
+        super().__init__(
+            depth=depth,
+            strides=strides,
+            deep_stem=deep_stem,
+            avg_down=avg_down,
+            **kwargs)
+
+    def _make_stem_layer(self, in_channels: int, stem_channels: int):
+        """Build stem layer for CLIPResNet used in `CLIP
+        https://github.com/openai/CLIP>`_.
+
+        It uses an average pooling layer rather than a max pooling
+        layer at the end of the input stem.
+
+        Args:
+            in_channels (int): Number of input channels.
+            stem_channels (int): Number of output channels.
+        """
+        super()._make_stem_layer(in_channels, stem_channels)
+        if self.deep_stem:
+            self.maxpool = nn.AvgPool2d(kernel_size=2)
diff --git a/mmocr-dev-1.x/mmocr/models/common/backbones/unet.py b/mmocr-dev-1.x/mmocr/models/common/backbones/unet.py
new file mode 100644
index 0000000000000000000000000000000000000000..d582551715fc20353d26745b9d1bb55892b7a10d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/backbones/unet.py
@@ -0,0 +1,516 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch
+import torch.nn as nn
+import torch.utils.checkpoint as cp
+from mmcv.cnn import ConvModule, build_norm_layer
+from mmengine.model import BaseModule
+from mmengine.utils.dl_utils.parrots_wrapper import _BatchNorm
+
+from mmocr.registry import MODELS
+
+
+class UpConvBlock(nn.Module):
+    """Upsample convolution block in decoder for UNet.
+
+    This upsample convolution block consists of one upsample module
+    followed by one convolution block. The upsample module expands the
+    high-level low-resolution feature map and the convolution block fuses
+    the upsampled high-level low-resolution feature map and the low-level
+    high-resolution feature map from encoder.
+
+    Args:
+        conv_block (nn.Sequential): Sequential of convolutional layers.
+        in_channels (int): Number of input channels of the high-level
+        skip_channels (int): Number of input channels of the low-level
+        high-resolution feature map from encoder.
+        out_channels (int): Number of output channels.
+        num_convs (int): Number of convolutional layers in the conv_block.
+            Default: 2.
+        stride (int): Stride of convolutional layer in conv_block. Default: 1.
+        dilation (int): Dilation rate of convolutional layer in conv_block.
+            Default: 1.
+        with_cp (bool): Use checkpoint or not. Using checkpoint will save some
+            memory while slowing down the training speed. Default: False.
+        conv_cfg (dict | None): Config dict for convolution layer.
+            Default: None.
+        norm_cfg (dict | None): Config dict for normalization layer.
+            Default: dict(type='BN').
+        act_cfg (dict | None): Config dict for activation layer in ConvModule.
+            Default: dict(type='ReLU').
+        upsample_cfg (dict): The upsample config of the upsample module in
+            decoder. Default: dict(type='InterpConv'). If the size of
+            high-level feature map is the same as that of skip feature map
+            (low-level feature map from encoder), it does not need upsample the
+            high-level feature map and the upsample_cfg is None.
+        dcn (bool): Use deformable convolution in convolutional layer or not.
+            Default: None.
+        plugins (dict): plugins for convolutional layers. Default: None.
+    """
+
+    def __init__(self,
+                 conv_block,
+                 in_channels,
+                 skip_channels,
+                 out_channels,
+                 num_convs=2,
+                 stride=1,
+                 dilation=1,
+                 with_cp=False,
+                 conv_cfg=None,
+                 norm_cfg=dict(type='BN'),
+                 act_cfg=dict(type='ReLU'),
+                 upsample_cfg=dict(type='InterpConv'),
+                 dcn=None,
+                 plugins=None):
+        super().__init__()
+        assert dcn is None, 'Not implemented yet.'
+        assert plugins is None, 'Not implemented yet.'
+
+        self.conv_block = conv_block(
+            in_channels=2 * skip_channels,
+            out_channels=out_channels,
+            num_convs=num_convs,
+            stride=stride,
+            dilation=dilation,
+            with_cp=with_cp,
+            conv_cfg=conv_cfg,
+            norm_cfg=norm_cfg,
+            act_cfg=act_cfg,
+            dcn=None,
+            plugins=None)
+        if upsample_cfg is not None:
+            upsample_cfg.update(
+                dict(
+                    in_channels=in_channels,
+                    out_channels=skip_channels,
+                    with_cp=with_cp,
+                    norm_cfg=norm_cfg,
+                    act_cfg=act_cfg))
+            self.upsample = MODELS.build(upsample_cfg)
+        else:
+            self.upsample = ConvModule(
+                in_channels,
+                skip_channels,
+                kernel_size=1,
+                stride=1,
+                padding=0,
+                conv_cfg=conv_cfg,
+                norm_cfg=norm_cfg,
+                act_cfg=act_cfg)
+
+    def forward(self, skip, x):
+        """Forward function."""
+
+        x = self.upsample(x)
+        out = torch.cat([skip, x], dim=1)
+        out = self.conv_block(out)
+
+        return out
+
+
+class BasicConvBlock(nn.Module):
+    """Basic convolutional block for UNet.
+
+    This module consists of several plain convolutional layers.
+
+    Args:
+        in_channels (int): Number of input channels.
+        out_channels (int): Number of output channels.
+        num_convs (int): Number of convolutional layers. Default: 2.
+        stride (int): Whether use stride convolution to downsample
+            the input feature map. If stride=2, it only uses stride convolution
+            in the first convolutional layer to downsample the input feature
+            map. Options are 1 or 2. Default: 1.
+        dilation (int): Whether use dilated convolution to expand the
+            receptive field. Set dilation rate of each convolutional layer and
+            the dilation rate of the first convolutional layer is always 1.
+            Default: 1.
+        with_cp (bool): Use checkpoint or not. Using checkpoint will save some
+            memory while slowing down the training speed. Default: False.
+        conv_cfg (dict | None): Config dict for convolution layer.
+            Default: None.
+        norm_cfg (dict | None): Config dict for normalization layer.
+            Default: dict(type='BN').
+        act_cfg (dict | None): Config dict for activation layer in ConvModule.
+            Default: dict(type='ReLU').
+        dcn (bool): Use deformable convolution in convolutional layer or not.
+            Default: None.
+        plugins (dict): plugins for convolutional layers. Default: None.
+    """
+
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 num_convs=2,
+                 stride=1,
+                 dilation=1,
+                 with_cp=False,
+                 conv_cfg=None,
+                 norm_cfg=dict(type='BN'),
+                 act_cfg=dict(type='ReLU'),
+                 dcn=None,
+                 plugins=None):
+        super().__init__()
+        assert dcn is None, 'Not implemented yet.'
+        assert plugins is None, 'Not implemented yet.'
+
+        self.with_cp = with_cp
+        convs = []
+        for i in range(num_convs):
+            convs.append(
+                ConvModule(
+                    in_channels=in_channels if i == 0 else out_channels,
+                    out_channels=out_channels,
+                    kernel_size=3,
+                    stride=stride if i == 0 else 1,
+                    dilation=1 if i == 0 else dilation,
+                    padding=1 if i == 0 else dilation,
+                    conv_cfg=conv_cfg,
+                    norm_cfg=norm_cfg,
+                    act_cfg=act_cfg))
+
+        self.convs = nn.Sequential(*convs)
+
+    def forward(self, x):
+        """Forward function."""
+
+        if self.with_cp and x.requires_grad:
+            out = cp.checkpoint(self.convs, x)
+        else:
+            out = self.convs(x)
+        return out
+
+
+@MODELS.register_module()
+class DeconvModule(nn.Module):
+    """Deconvolution upsample module in decoder for UNet (2X upsample).
+
+    This module uses deconvolution to upsample feature map in the decoder
+    of UNet.
+
+    Args:
+        in_channels (int): Number of input channels.
+        out_channels (int): Number of output channels.
+        with_cp (bool): Use checkpoint or not. Using checkpoint will save some
+            memory while slowing down the training speed. Default: False.
+        norm_cfg (dict | None): Config dict for normalization layer.
+            Default: dict(type='BN').
+        act_cfg (dict | None): Config dict for activation layer in ConvModule.
+            Default: dict(type='ReLU').
+        kernel_size (int): Kernel size of the convolutional layer. Default: 4.
+    """
+
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 with_cp=False,
+                 norm_cfg=dict(type='BN'),
+                 act_cfg=dict(type='ReLU'),
+                 *,
+                 kernel_size=4,
+                 scale_factor=2):
+        super().__init__()
+
+        assert (
+            kernel_size - scale_factor >= 0
+            and (kernel_size - scale_factor) % 2 == 0), (
+                f'kernel_size should be greater than or equal to scale_factor '
+                f'and (kernel_size - scale_factor) should be even numbers, '
+                f'while the kernel size is {kernel_size} and scale_factor is '
+                f'{scale_factor}.')
+
+        stride = scale_factor
+        padding = (kernel_size - scale_factor) // 2
+        self.with_cp = with_cp
+        deconv = nn.ConvTranspose2d(
+            in_channels,
+            out_channels,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=padding)
+
+        _, norm = build_norm_layer(norm_cfg, out_channels)
+        activate = MODELS.build(act_cfg)
+        self.deconv_upsamping = nn.Sequential(deconv, norm, activate)
+
+    def forward(self, x):
+        """Forward function."""
+
+        if self.with_cp and x.requires_grad:
+            out = cp.checkpoint(self.deconv_upsamping, x)
+        else:
+            out = self.deconv_upsamping(x)
+        return out
+
+
+@MODELS.register_module()
+class InterpConv(nn.Module):
+    """Interpolation upsample module in decoder for UNet.
+
+    This module uses interpolation to upsample feature map in the decoder
+    of UNet. It consists of one interpolation upsample layer and one
+    convolutional layer. It can be one interpolation upsample layer followed
+    by one convolutional layer (conv_first=False) or one convolutional layer
+    followed by one interpolation upsample layer (conv_first=True).
+
+    Args:
+        in_channels (int): Number of input channels.
+        out_channels (int): Number of output channels.
+        with_cp (bool): Use checkpoint or not. Using checkpoint will save some
+            memory while slowing down the training speed. Default: False.
+        norm_cfg (dict | None): Config dict for normalization layer.
+            Default: dict(type='BN').
+        act_cfg (dict | None): Config dict for activation layer in ConvModule.
+            Default: dict(type='ReLU').
+        conv_cfg (dict | None): Config dict for convolution layer.
+            Default: None.
+        conv_first (bool): Whether convolutional layer or interpolation
+            upsample layer first. Default: False. It means interpolation
+            upsample layer followed by one convolutional layer.
+        kernel_size (int): Kernel size of the convolutional layer. Default: 1.
+        stride (int): Stride of the convolutional layer. Default: 1.
+        padding (int): Padding of the convolutional layer. Default: 1.
+        upsample_cfg (dict): Interpolation config of the upsample layer.
+            Default: dict(
+                scale_factor=2, mode='bilinear', align_corners=False).
+    """
+
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 with_cp=False,
+                 norm_cfg=dict(type='BN'),
+                 act_cfg=dict(type='ReLU'),
+                 *,
+                 conv_cfg=None,
+                 conv_first=False,
+                 kernel_size=1,
+                 stride=1,
+                 padding=0,
+                 upsample_cfg=dict(
+                     scale_factor=2, mode='bilinear', align_corners=False)):
+        super().__init__()
+
+        self.with_cp = with_cp
+        conv = ConvModule(
+            in_channels,
+            out_channels,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=padding,
+            conv_cfg=conv_cfg,
+            norm_cfg=norm_cfg,
+            act_cfg=act_cfg)
+        upsample = nn.Upsample(**upsample_cfg)
+        if conv_first:
+            self.interp_upsample = nn.Sequential(conv, upsample)
+        else:
+            self.interp_upsample = nn.Sequential(upsample, conv)
+
+    def forward(self, x):
+        """Forward function."""
+
+        if self.with_cp and x.requires_grad:
+            out = cp.checkpoint(self.interp_upsample, x)
+        else:
+            out = self.interp_upsample(x)
+        return out
+
+
+@MODELS.register_module()
+class UNet(BaseModule):
+    """UNet backbone.
+    U-Net: Convolutional Networks for Biomedical Image Segmentation.
+    https://arxiv.org/pdf/1505.04597.pdf
+
+    Args:
+        in_channels (int): Number of input image channels. Default" 3.
+        base_channels (int): Number of base channels of each stage.
+            The output channels of the first stage. Default: 64.
+        num_stages (int): Number of stages in encoder, normally 5. Default: 5.
+        strides (Sequence[int 1 | 2]): Strides of each stage in encoder.
+            len(strides) is equal to num_stages. Normally the stride of the
+            first stage in encoder is 1. If strides[i]=2, it uses stride
+            convolution to downsample in the correspondence encoder stage.
+            Default: (1, 1, 1, 1, 1).
+        enc_num_convs (Sequence[int]): Number of convolutional layers in the
+            convolution block of the correspondence encoder stage.
+            Default: (2, 2, 2, 2, 2).
+        dec_num_convs (Sequence[int]): Number of convolutional layers in the
+            convolution block of the correspondence decoder stage.
+            Default: (2, 2, 2, 2).
+        downsamples (Sequence[int]): Whether use MaxPool to downsample the
+            feature map after the first stage of encoder
+            (stages: [1, num_stages)). If the correspondence encoder stage use
+            stride convolution (strides[i]=2), it will never use MaxPool to
+            downsample, even downsamples[i-1]=True.
+            Default: (True, True, True, True).
+        enc_dilations (Sequence[int]): Dilation rate of each stage in encoder.
+            Default: (1, 1, 1, 1, 1).
+        dec_dilations (Sequence[int]): Dilation rate of each stage in decoder.
+            Default: (1, 1, 1, 1).
+        with_cp (bool): Use checkpoint or not. Using checkpoint will save some
+            memory while slowing down the training speed. Default: False.
+        conv_cfg (dict | None): Config dict for convolution layer.
+            Default: None.
+        norm_cfg (dict | None): Config dict for normalization layer.
+            Default: dict(type='BN').
+        act_cfg (dict | None): Config dict for activation layer in ConvModule.
+            Default: dict(type='ReLU').
+        upsample_cfg (dict): The upsample config of the upsample module in
+            decoder. Default: dict(type='InterpConv').
+        norm_eval (bool): Whether to set norm layers to eval mode, namely,
+            freeze running stats (mean and var). Note: Effect on Batch Norm
+            and its variants only. Default: False.
+        dcn (bool): Use deformable convolution in convolutional layer or not.
+            Default: None.
+        plugins (dict): plugins for convolutional layers. Default: None.
+
+    Notice:
+        The input image size should be divisible by the whole downsample rate
+        of the encoder. More detail of the whole downsample rate can be found
+        in UNet._check_input_divisible.
+
+    """
+
+    def __init__(self,
+                 in_channels=3,
+                 base_channels=64,
+                 num_stages=5,
+                 strides=(1, 1, 1, 1, 1),
+                 enc_num_convs=(2, 2, 2, 2, 2),
+                 dec_num_convs=(2, 2, 2, 2),
+                 downsamples=(True, True, True, True),
+                 enc_dilations=(1, 1, 1, 1, 1),
+                 dec_dilations=(1, 1, 1, 1),
+                 with_cp=False,
+                 conv_cfg=None,
+                 norm_cfg=dict(type='BN'),
+                 act_cfg=dict(type='ReLU'),
+                 upsample_cfg=dict(type='InterpConv'),
+                 norm_eval=False,
+                 dcn=None,
+                 plugins=None,
+                 init_cfg=[
+                     dict(type='Kaiming', layer='Conv2d'),
+                     dict(
+                         type='Constant',
+                         layer=['_BatchNorm', 'GroupNorm'],
+                         val=1)
+                 ]):
+        super().__init__(init_cfg=init_cfg)
+        assert dcn is None, 'Not implemented yet.'
+        assert plugins is None, 'Not implemented yet.'
+        assert len(strides) == num_stages, (
+            'The length of strides should be equal to num_stages, '
+            f'while the strides is {strides}, the length of '
+            f'strides is {len(strides)}, and the num_stages is '
+            f'{num_stages}.')
+        assert len(enc_num_convs) == num_stages, (
+            'The length of enc_num_convs should be equal to num_stages, '
+            f'while the enc_num_convs is {enc_num_convs}, the length of '
+            f'enc_num_convs is {len(enc_num_convs)}, and the num_stages is '
+            f'{num_stages}.')
+        assert len(dec_num_convs) == (num_stages - 1), (
+            'The length of dec_num_convs should be equal to (num_stages-1), '
+            f'while the dec_num_convs is {dec_num_convs}, the length of '
+            f'dec_num_convs is {len(dec_num_convs)}, and the num_stages is '
+            f'{num_stages}.')
+        assert len(downsamples) == (num_stages - 1), (
+            'The length of downsamples should be equal to (num_stages-1), '
+            f'while the downsamples is {downsamples}, the length of '
+            f'downsamples is {len(downsamples)}, and the num_stages is '
+            f'{num_stages}.')
+        assert len(enc_dilations) == num_stages, (
+            'The length of enc_dilations should be equal to num_stages, '
+            f'while the enc_dilations is {enc_dilations}, the length of '
+            f'enc_dilations is {len(enc_dilations)}, and the num_stages is '
+            f'{num_stages}.')
+        assert len(dec_dilations) == (num_stages - 1), (
+            'The length of dec_dilations should be equal to (num_stages-1), '
+            f'while the dec_dilations is {dec_dilations}, the length of '
+            f'dec_dilations is {len(dec_dilations)}, and the num_stages is '
+            f'{num_stages}.')
+        self.num_stages = num_stages
+        self.strides = strides
+        self.downsamples = downsamples
+        self.norm_eval = norm_eval
+        self.base_channels = base_channels
+
+        self.encoder = nn.ModuleList()
+        self.decoder = nn.ModuleList()
+
+        for i in range(num_stages):
+            enc_conv_block = []
+            if i != 0:
+                if strides[i] == 1 and downsamples[i - 1]:
+                    enc_conv_block.append(nn.MaxPool2d(kernel_size=2))
+                upsample = (strides[i] != 1 or downsamples[i - 1])
+                self.decoder.append(
+                    UpConvBlock(
+                        conv_block=BasicConvBlock,
+                        in_channels=base_channels * 2**i,
+                        skip_channels=base_channels * 2**(i - 1),
+                        out_channels=base_channels * 2**(i - 1),
+                        num_convs=dec_num_convs[i - 1],
+                        stride=1,
+                        dilation=dec_dilations[i - 1],
+                        with_cp=with_cp,
+                        conv_cfg=conv_cfg,
+                        norm_cfg=norm_cfg,
+                        act_cfg=act_cfg,
+                        upsample_cfg=upsample_cfg if upsample else None,
+                        dcn=None,
+                        plugins=None))
+
+            enc_conv_block.append(
+                BasicConvBlock(
+                    in_channels=in_channels,
+                    out_channels=base_channels * 2**i,
+                    num_convs=enc_num_convs[i],
+                    stride=strides[i],
+                    dilation=enc_dilations[i],
+                    with_cp=with_cp,
+                    conv_cfg=conv_cfg,
+                    norm_cfg=norm_cfg,
+                    act_cfg=act_cfg,
+                    dcn=None,
+                    plugins=None))
+            self.encoder.append(nn.Sequential(*enc_conv_block))
+            in_channels = base_channels * 2**i
+
+    def forward(self, x):
+        self._check_input_divisible(x)
+        enc_outs = []
+        for enc in self.encoder:
+            x = enc(x)
+            enc_outs.append(x)
+        dec_outs = [x]
+        for i in reversed(range(len(self.decoder))):
+            x = self.decoder[i](enc_outs[i], x)
+            dec_outs.append(x)
+
+        return dec_outs
+
+    def train(self, mode=True):
+        """Convert the model into training mode while keep normalization layer
+        freezed."""
+        super().train(mode)
+        if mode and self.norm_eval:
+            for m in self.modules():
+                # trick: eval have effect on BatchNorm only
+                if isinstance(m, _BatchNorm):
+                    m.eval()
+
+    def _check_input_divisible(self, x):
+        h, w = x.shape[-2:]
+        whole_downsample_rate = 1
+        for i in range(1, self.num_stages):
+            if self.strides[i] == 2 or self.downsamples[i - 1]:
+                whole_downsample_rate *= 2
+        assert (
+            h % whole_downsample_rate == 0 and w % whole_downsample_rate == 0
+        ), (f'The input image size {(h, w)} should be divisible by the whole '
+            f'downsample rate {whole_downsample_rate}, when num_stages is '
+            f'{self.num_stages}, strides is {self.strides}, and downsamples '
+            f'is {self.downsamples}.')
diff --git a/mmocr-dev-1.x/mmocr/models/common/backbones/vit.py b/mmocr-dev-1.x/mmocr/models/common/backbones/vit.py
new file mode 100644
index 0000000000000000000000000000000000000000..745c185b8918a890e1cb76a06d37bdbdf267e33c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/backbones/vit.py
@@ -0,0 +1,284 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+# --------------------------------------------------------
+# References:
+# timm: https://github.com/rwightman/pytorch-image-models/tree/master/timm
+# DeiT: https://github.com/facebookresearch/deit
+# --------------------------------------------------------
+
+from functools import partial
+from typing import Tuple
+import timm.models.vision_transformer
+from safetensors import safe_open
+from safetensors.torch import save_file
+import torch
+import torch.nn as nn
+import math
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class VisionTransformer(timm.models.vision_transformer.VisionTransformer):
+    """ Vision Transformer.
+
+    Args:
+        global_pool (bool): If True, apply global pooling to the output
+            of the last stage. Default: False.
+        patch_size (int): Patch token size. Default: 8.
+        img_size (tuple[int]): Input image size. Default: (32, 128).
+        embed_dim (int): Number of linear projection output channels.
+            Default: 192.
+        depth (int): Number of blocks. Default: 12.
+        num_heads (int): Number of attention heads. Default: 3.
+        mlp_ratio (float): Ratio of mlp hidden dim to embedding dim.
+            Default: 4.
+        qkv_bias (bool): If True, add a learnable bias to query, key,
+            value. Default: True.
+        norm_layer (nn.Module): Normalization layer. Default:
+            partial(nn.LayerNorm, eps=1e-6).
+        pretrained (str): Path to pre-trained checkpoint. Default: None.
+    """
+
+    def __init__(self,
+                 global_pool: bool = False,
+                 patch_size: int = 8,
+                 img_size: Tuple[int, int] = (32, 128),
+                 embed_dim: int = 192,
+                 depth: int = 12,
+                 num_heads: int = 3,
+                 mlp_ratio: int = 4.,
+                 qkv_bias: bool = True,
+                 norm_layer=partial(nn.LayerNorm, eps=1e-6),
+                 pretrained: bool = None,
+                 **kwargs):
+        super(VisionTransformer, self).__init__(
+            patch_size=patch_size,
+            img_size=img_size,
+            embed_dim=embed_dim,
+            depth=depth,
+            num_heads=num_heads,
+            mlp_ratio=mlp_ratio,
+            qkv_bias=qkv_bias,
+            norm_layer=norm_layer,
+            **kwargs)
+
+        self.global_pool = global_pool
+        if self.global_pool:
+            norm_layer = kwargs['norm_layer']
+            embed_dim = kwargs['embed_dim']
+            self.fc_norm = norm_layer(embed_dim)
+
+            del self.norm  # remove the original norm
+        self.reset_classifier(0)
+
+        if pretrained:
+            checkpoint = torch.load(pretrained, map_location='cpu')
+
+            print("Load pre-trained checkpoint from: %s" % pretrained)
+            checkpoint_model = checkpoint['model']
+            state_dict = self.state_dict()
+            for k in ['head.weight', 'head.bias']:
+                if k in checkpoint_model and checkpoint_model[
+                        k].shape != state_dict[k].shape:
+                    print(f"Removing key {k} from pretrained checkpoint")
+                    del checkpoint_model[k]
+            # remove key with decoder
+            for k in list(checkpoint_model.keys()):
+                if 'decoder' in k:
+                    del checkpoint_model[k]
+            msg = self.load_state_dict(checkpoint_model, strict=False)
+            print(msg)
+
+    def forward_features(self, x: torch.Tensor):
+        B = x.shape[0]
+        x = self.patch_embed(x)
+
+        cls_tokens = self.cls_token.expand(
+            B, -1, -1)  # stole cls_tokens impl from Phil Wang, thanks
+        x = torch.cat((cls_tokens, x), dim=1)
+        x = x + self.pos_embed
+        x = self.pos_drop(x)
+
+        for blk in self.blocks:
+            x = blk(x)
+
+        x = self.norm(x)
+        return x
+
+    def forward(self, x):
+        return self.forward_features(x)
+
+
+class _LoRA_qkv_timm(nn.Module):
+    """LoRA layer for query and value projection in Vision Transformer of timm.
+
+    Args:
+        qkv (nn.Module): qkv projection layer in Vision Transformer of timm.
+        linear_a_q (nn.Module): Linear layer for query projection.
+        linear_b_q (nn.Module): Linear layer for query projection.
+        linear_a_v (nn.Module): Linear layer for value projection.
+        linear_b_v (nn.Module): Linear layer for value projection.
+    """
+
+    def __init__(
+        self,
+        qkv: nn.Module,
+        linear_a_q: nn.Module,
+        linear_b_q: nn.Module,
+        linear_a_v: nn.Module,
+        linear_b_v: nn.Module,
+    ):
+        super().__init__()
+        self.qkv = qkv
+        self.linear_a_q = linear_a_q
+        self.linear_b_q = linear_b_q
+        self.linear_a_v = linear_a_v
+        self.linear_b_v = linear_b_v
+        self.dim = qkv.in_features
+
+    def forward(self, x):
+        qkv = self.qkv(x)  # B, N, 3*dim
+        new_q = self.linear_b_q(self.linear_a_q(x))
+        new_v = self.linear_b_v(self.linear_a_v(x))
+        qkv[:, :, :self.dim] += new_q
+        qkv[:, :, -self.dim:] += new_v
+        return qkv
+
+
+@MODELS.register_module()
+class VisionTransformer_LoRA(nn.Module):
+    """Vision Transformer with LoRA. For each block, we add a LoRA layer for
+    the linear projection of query and value.
+
+    Args:
+        vit_config (dict): Config dict for VisionTransformer.
+        rank (int): Rank of LoRA layer. Default: 4.
+        lora_layers (int): Stages to add LoRA layer. Defaults None means
+            add LoRA layer to all stages.
+        pretrained_lora (str): Path to pre-trained checkpoint of LoRA layer.
+    """
+
+    def __init__(self,
+                 vit_config: dict,
+                 rank: int = 4,
+                 lora_layers: int = None,
+                 pretrained_lora: str = None):
+        super(VisionTransformer_LoRA, self).__init__()
+        self.vit = MODELS.build(vit_config)
+        assert rank > 0
+        if lora_layers:
+            self.lora_layers = lora_layers
+        else:
+            self.lora_layers = list(range(len(self.vit.blocks)))
+        # creat list of LoRA layers
+        self.query_As = nn.Sequential()  # matrix A for query linear projection
+        self.query_Bs = nn.Sequential()
+        self.value_As = nn.Sequential()  # matrix B for value linear projection
+        self.value_Bs = nn.Sequential()
+
+        # freeze the original vit
+        for param in self.vit.parameters():
+            param.requires_grad = False
+
+        # compose LoRA layers
+        for block_idx, block in enumerate(self.vit.blocks):
+            if block_idx not in self.lora_layers:
+                continue
+            # create LoRA layer
+            w_qkv_linear = block.attn.qkv
+            self.dim = w_qkv_linear.in_features
+            w_a_linear_q = nn.Linear(self.dim, rank, bias=False)
+            w_b_linear_q = nn.Linear(rank, self.dim, bias=False)
+            w_a_linear_v = nn.Linear(self.dim, rank, bias=False)
+            w_b_linear_v = nn.Linear(rank, self.dim, bias=False)
+            self.query_As.append(w_a_linear_q)
+            self.query_Bs.append(w_b_linear_q)
+            self.value_As.append(w_a_linear_v)
+            self.value_Bs.append(w_b_linear_v)
+            # replace the original qkv layer with LoRA layer
+            block.attn.qkv = _LoRA_qkv_timm(
+                w_qkv_linear,
+                w_a_linear_q,
+                w_b_linear_q,
+                w_a_linear_v,
+                w_b_linear_v,
+            )
+        self._init_lora()
+        if pretrained_lora is not None:
+            self._load_lora(pretrained_lora)
+
+    def _init_lora(self):
+        """Initialize the LoRA layers to be identity mapping."""
+        for query_A, query_B, value_A, value_B in zip(self.query_As,
+                                                      self.query_Bs,
+                                                      self.value_As,
+                                                      self.value_Bs):
+            nn.init.kaiming_uniform_(query_A.weight, a=math.sqrt(5))
+            nn.init.kaiming_uniform_(value_A.weight, a=math.sqrt(5))
+            nn.init.zeros_(query_B.weight)
+            nn.init.zeros_(value_B.weight)
+
+    def _load_lora(self, checkpoint_lora: str):
+        """Load pre-trained LoRA checkpoint.
+
+        Args:
+            checkpoint_lora (str): Path to pre-trained LoRA checkpoint.
+        """
+        assert checkpoint_lora.endswith(".safetensors")
+        with safe_open(checkpoint_lora, framework="pt") as f:
+            for i, q_A, q_B, v_A, v_B in zip(
+                    range(len(self.query_As)),
+                    self.query_As,
+                    self.query_Bs,
+                    self.value_As,
+                    self.value_Bs,
+            ):
+                q_A.weight = nn.Parameter(f.get_tensor(f"q_a_{i:03d}"))
+                q_B.weight = nn.Parameter(f.get_tensor(f"q_b_{i:03d}"))
+                v_A.weight = nn.Parameter(f.get_tensor(f"v_a_{i:03d}"))
+                v_B.weight = nn.Parameter(f.get_tensor(f"v_b_{i:03d}"))
+
+    def forward(self, x):
+        x = self.vit(x)
+        return x
+
+
+def extract_lora_from_vit(checkpoint_path: str,
+                          save_path: str,
+                          ckpt_key: str = None):
+    """Given a checkpoint of VisionTransformer_LoRA, extract the LoRA weights
+    and save them to a new checkpoint.
+
+    Args:
+        checkpoint_path (str): Path to checkpoint of VisionTransformer_LoRA.
+        ckpt_key (str): Key of model in the checkpoint.
+        save_path (str): Path to save the extracted LoRA checkpoint.
+    """
+    assert save_path.endswith(".safetensors")
+    ckpt = torch.load(checkpoint_path, map_location="cpu")
+    # travel throung the ckpt to find the LoRA layers
+    query_As = []
+    query_Bs = []
+    value_As = []
+    value_Bs = []
+    ckpt = ckpt if ckpt_key is None else ckpt[ckpt_key]
+    for k, v in ckpt.items():
+        if k.startswith("query_As"):
+            query_As.append(v)
+        elif k.startswith("query_Bs"):
+            query_Bs.append(v)
+        elif k.startswith("value_As"):
+            value_As.append(v)
+        elif k.startswith("value_Bs"):
+            value_Bs.append(v)
+    # save the LoRA layers to a new checkpoint
+    ckpt_dict = {}
+    for i in range(len(query_As)):
+        ckpt_dict[f"q_a_{i:03d}"] = query_As[i]
+        ckpt_dict[f"q_b_{i:03d}"] = query_Bs[i]
+        ckpt_dict[f"v_a_{i:03d}"] = value_As[i]
+        ckpt_dict[f"v_b_{i:03d}"] = value_Bs[i]
+    save_file(ckpt_dict, save_path)
diff --git a/mmocr-dev-1.x/mmocr/models/common/dictionary/__init__.py b/mmocr-dev-1.x/mmocr/models/common/dictionary/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..9ad0ab306f183192aa5c8464eee5947e13d294e6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/dictionary/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from .dictionary import Dictionary
+
+__all__ = ['Dictionary']
diff --git a/mmocr-dev-1.x/mmocr/models/common/dictionary/dictionary.py b/mmocr-dev-1.x/mmocr/models/common/dictionary/dictionary.py
new file mode 100644
index 0000000000000000000000000000000000000000..d16dc87582da52f0179fb2188646bf5e07a3df6d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/dictionary/dictionary.py
@@ -0,0 +1,188 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List, Sequence
+
+from mmocr.registry import TASK_UTILS
+from mmocr.utils import list_from_file
+
+
+@TASK_UTILS.register_module()
+class Dictionary:
+    """The class generates a dictionary for recognition. It pre-defines four
+    special tokens: ``start_token``, ``end_token``, ``pad_token``, and
+    ``unknown_token``, which will be sequentially placed at the end of the
+    dictionary when their corresponding flags are True.
+
+    Args:
+        dict_file (str): The path of Character dict file which a single
+            character must occupies a line.
+        with_start (bool): The flag to control whether to include the start
+            token. Defaults to False.
+        with_end (bool): The flag to control whether to include the end token.
+            Defaults to False.
+        same_start_end (bool): The flag to control whether the start token and
+            end token are the same. It only works when both ``with_start`` and
+            ``with_end`` are True. Defaults to False.
+        with_padding (bool):The padding token may represent more than a
+            padding. It can also represent tokens like the blank token in CTC
+            or the background token in SegOCR. Defaults to False.
+        with_unknown (bool): The flag to control whether to include the
+            unknown token. Defaults to False.
+        start_token (str): The start token as a string. Defaults to '<BOS>'.
+        end_token (str): The end token as a string. Defaults to '<EOS>'.
+        start_end_token (str): The start/end token as a string. if start and
+            end is the same. Defaults to '<BOS/EOS>'.
+        padding_token (str): The padding token as a string.
+            Defaults to '<PAD>'.
+        unknown_token (str, optional): The unknown token as a string. If it's
+            set to None and ``with_unknown`` is True, the unknown token will be
+            skipped when converting string to index. Defaults to '<UKN>'.
+    """
+
+    def __init__(self,
+                 dict_file: str,
+                 with_start: bool = False,
+                 with_end: bool = False,
+                 same_start_end: bool = False,
+                 with_padding: bool = False,
+                 with_unknown: bool = False,
+                 start_token: str = '<BOS>',
+                 end_token: str = '<EOS>',
+                 start_end_token: str = '<BOS/EOS>',
+                 padding_token: str = '<PAD>',
+                 unknown_token: str = '<UKN>') -> None:
+        self.with_start = with_start
+        self.with_end = with_end
+        self.same_start_end = same_start_end
+        self.with_padding = with_padding
+        self.with_unknown = with_unknown
+        self.start_end_token = start_end_token
+        self.start_token = start_token
+        self.end_token = end_token
+        self.padding_token = padding_token
+        self.unknown_token = unknown_token
+
+        assert isinstance(dict_file, str)
+        self._dict = []
+        for line_num, line in enumerate(list_from_file(dict_file)):
+            line = line.strip('\r\n')
+            if len(line) > 1:
+                raise ValueError('Expect each line has 0 or 1 character, '
+                                 f'got {len(line)} characters '
+                                 f'at line {line_num + 1}')
+            if line != '':
+                self._dict.append(line)
+
+        self._char2idx = {char: idx for idx, char in enumerate(self._dict)}
+
+        self._update_dict()
+        assert len(set(self._dict)) == len(self._dict), \
+            'Invalid dictionary: Has duplicated characters.'
+
+    @property
+    def num_classes(self) -> int:
+        """int: Number of output classes. Special tokens are counted.
+        """
+        return len(self._dict)
+
+    @property
+    def dict(self) -> list:
+        """list: Returns a list of characters to recognize, where special
+        tokens are counted."""
+        return self._dict
+
+    def char2idx(self, char: str, strict: bool = True) -> int:
+        """Convert a character to an index via ``Dictionary.dict``.
+
+        Args:
+            char (str): The character to convert to index.
+            strict (bool): The flag to control whether to raise an exception
+                when the character is not in the dictionary. Defaults to True.
+
+        Return:
+            int: The index of the character.
+        """
+        char_idx = self._char2idx.get(char, None)
+        if char_idx is None:
+            if self.with_unknown:
+                return self.unknown_idx
+            elif not strict:
+                return None
+            else:
+                raise Exception(f'Chararcter: {char} not in dict,'
+                                ' please check gt_label and use'
+                                ' custom dict file,'
+                                ' or set "with_unknown=True"')
+        return char_idx
+
+    def str2idx(self, string: str) -> List:
+        """Convert a string to a list of indexes via ``Dictionary.dict``.
+
+        Args:
+            string (str): The string to convert to indexes.
+
+        Return:
+            list: The list of indexes of the string.
+        """
+        idx = list()
+        for s in string:
+            char_idx = self.char2idx(s)
+            if char_idx is None:
+                if self.with_unknown:
+                    continue
+                raise Exception(f'Chararcter: {s} not in dict,'
+                                ' please check gt_label and use'
+                                ' custom dict file,'
+                                ' or set "with_unknown=True"')
+            idx.append(char_idx)
+        return idx
+
+    def idx2str(self, index: Sequence[int]) -> str:
+        """Convert a list of index to string.
+
+        Args:
+            index (list[int]): The list of indexes to convert to string.
+
+        Return:
+            str: The converted string.
+        """
+        assert isinstance(index, (list, tuple))
+        string = ''
+        for i in index:
+            assert i < len(self._dict), f'Index: {i} out of range! Index ' \
+                                        f'must be less than {len(self._dict)}'
+            string += self._dict[i]
+        return string
+
+    def _update_dict(self):
+        """Update the dict with tokens according to parameters."""
+        # BOS/EOS
+        self.start_idx = None
+        self.end_idx = None
+        if self.with_start and self.with_end and self.same_start_end:
+            self._dict.append(self.start_end_token)
+            self.start_idx = len(self._dict) - 1
+            self.end_idx = self.start_idx
+        else:
+            if self.with_start:
+                self._dict.append(self.start_token)
+                self.start_idx = len(self._dict) - 1
+            if self.with_end:
+                self._dict.append(self.end_token)
+                self.end_idx = len(self._dict) - 1
+
+        # padding
+        self.padding_idx = None
+        if self.with_padding:
+            self._dict.append(self.padding_token)
+            self.padding_idx = len(self._dict) - 1
+
+        # unknown
+        self.unknown_idx = None
+        if self.with_unknown and self.unknown_token is not None:
+            self._dict.append(self.unknown_token)
+            self.unknown_idx = len(self._dict) - 1
+
+        # update char2idx
+        self._char2idx = {}
+        for idx, char in enumerate(self._dict):
+            self._char2idx[char] = idx
diff --git a/mmocr-dev-1.x/mmocr/models/common/layers/__init__.py b/mmocr-dev-1.x/mmocr/models/common/layers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..1d1a921fdc8b57e2de15cedd6a214df77d9bdb42
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/layers/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .transformer_layers import TFDecoderLayer, TFEncoderLayer
+
+__all__ = ['TFEncoderLayer', 'TFDecoderLayer']
diff --git a/mmocr-dev-1.x/mmocr/models/common/layers/transformer_layers.py b/mmocr-dev-1.x/mmocr/models/common/layers/transformer_layers.py
new file mode 100644
index 0000000000000000000000000000000000000000..8be138d5c5af89b96f27f3646b14a60302659105
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/layers/transformer_layers.py
@@ -0,0 +1,167 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+from mmengine.model import BaseModule
+
+from mmocr.models.common.modules import (MultiHeadAttention,
+                                         PositionwiseFeedForward)
+
+
+class TFEncoderLayer(BaseModule):
+    """Transformer Encoder Layer.
+
+    Args:
+        d_model (int): The number of expected features
+            in the decoder inputs (default=512).
+        d_inner (int): The dimension of the feedforward
+            network model (default=256).
+        n_head (int): The number of heads in the
+            multiheadattention models (default=8).
+        d_k (int): Total number of features in key.
+        d_v (int): Total number of features in value.
+        dropout (float): Dropout layer on attn_output_weights.
+        qkv_bias (bool): Add bias in projection layer. Default: False.
+        act_cfg (dict): Activation cfg for feedforward module.
+        operation_order (tuple[str]): The execution order of operation
+            in transformer. Such as ('self_attn', 'norm', 'ffn', 'norm')
+            or ('norm', 'self_attn', 'norm', 'ffn').
+            Default：None.
+    """
+
+    def __init__(self,
+                 d_model=512,
+                 d_inner=256,
+                 n_head=8,
+                 d_k=64,
+                 d_v=64,
+                 dropout=0.1,
+                 qkv_bias=False,
+                 act_cfg=dict(type='mmengine.GELU'),
+                 operation_order=None):
+        super().__init__()
+        self.attn = MultiHeadAttention(
+            n_head, d_model, d_k, d_v, qkv_bias=qkv_bias, dropout=dropout)
+        self.norm1 = nn.LayerNorm(d_model)
+        self.mlp = PositionwiseFeedForward(
+            d_model, d_inner, dropout=dropout, act_cfg=act_cfg)
+        self.norm2 = nn.LayerNorm(d_model)
+
+        self.operation_order = operation_order
+        if self.operation_order is None:
+            self.operation_order = ('norm', 'self_attn', 'norm', 'ffn')
+
+        assert self.operation_order in [('norm', 'self_attn', 'norm', 'ffn'),
+                                        ('self_attn', 'norm', 'ffn', 'norm')]
+
+    def forward(self, x, mask=None):
+        if self.operation_order == ('self_attn', 'norm', 'ffn', 'norm'):
+            residual = x
+            x = residual + self.attn(x, x, x, mask)
+            x = self.norm1(x)
+
+            residual = x
+            x = residual + self.mlp(x)
+            x = self.norm2(x)
+        elif self.operation_order == ('norm', 'self_attn', 'norm', 'ffn'):
+            residual = x
+            x = self.norm1(x)
+            x = residual + self.attn(x, x, x, mask)
+
+            residual = x
+            x = self.norm2(x)
+            x = residual + self.mlp(x)
+
+        return x
+
+
+class TFDecoderLayer(nn.Module):
+    """Transformer Decoder Layer.
+
+    Args:
+        d_model (int): The number of expected features
+            in the decoder inputs (default=512).
+        d_inner (int): The dimension of the feedforward
+            network model (default=256).
+        n_head (int): The number of heads in the
+            multiheadattention models (default=8).
+        d_k (int): Total number of features in key.
+        d_v (int): Total number of features in value.
+        dropout (float): Dropout layer on attn_output_weights.
+        qkv_bias (bool): Add bias in projection layer. Default: False.
+        act_cfg (dict): Activation cfg for feedforward module.
+        operation_order (tuple[str]): The execution order of operation
+            in transformer. Such as ('self_attn', 'norm', 'enc_dec_attn',
+            'norm', 'ffn', 'norm') or ('norm', 'self_attn', 'norm',
+            'enc_dec_attn', 'norm', 'ffn').
+            Default：None.
+    """
+
+    def __init__(self,
+                 d_model=512,
+                 d_inner=256,
+                 n_head=8,
+                 d_k=64,
+                 d_v=64,
+                 dropout=0.1,
+                 qkv_bias=False,
+                 act_cfg=dict(type='mmengine.GELU'),
+                 operation_order=None):
+        super().__init__()
+
+        self.norm1 = nn.LayerNorm(d_model)
+        self.norm2 = nn.LayerNorm(d_model)
+        self.norm3 = nn.LayerNorm(d_model)
+
+        self.self_attn = MultiHeadAttention(
+            n_head, d_model, d_k, d_v, dropout=dropout, qkv_bias=qkv_bias)
+
+        self.enc_attn = MultiHeadAttention(
+            n_head, d_model, d_k, d_v, dropout=dropout, qkv_bias=qkv_bias)
+
+        self.mlp = PositionwiseFeedForward(
+            d_model, d_inner, dropout=dropout, act_cfg=act_cfg)
+
+        self.operation_order = operation_order
+        if self.operation_order is None:
+            self.operation_order = ('norm', 'self_attn', 'norm',
+                                    'enc_dec_attn', 'norm', 'ffn')
+        assert self.operation_order in [
+            ('norm', 'self_attn', 'norm', 'enc_dec_attn', 'norm', 'ffn'),
+            ('self_attn', 'norm', 'enc_dec_attn', 'norm', 'ffn', 'norm')
+        ]
+
+    def forward(self,
+                dec_input,
+                enc_output,
+                self_attn_mask=None,
+                dec_enc_attn_mask=None):
+        if self.operation_order == ('self_attn', 'norm', 'enc_dec_attn',
+                                    'norm', 'ffn', 'norm'):
+            dec_attn_out = self.self_attn(dec_input, dec_input, dec_input,
+                                          self_attn_mask)
+            dec_attn_out += dec_input
+            dec_attn_out = self.norm1(dec_attn_out)
+
+            enc_dec_attn_out = self.enc_attn(dec_attn_out, enc_output,
+                                             enc_output, dec_enc_attn_mask)
+            enc_dec_attn_out += dec_attn_out
+            enc_dec_attn_out = self.norm2(enc_dec_attn_out)
+
+            mlp_out = self.mlp(enc_dec_attn_out)
+            mlp_out += enc_dec_attn_out
+            mlp_out = self.norm3(mlp_out)
+        elif self.operation_order == ('norm', 'self_attn', 'norm',
+                                      'enc_dec_attn', 'norm', 'ffn'):
+            dec_input_norm = self.norm1(dec_input)
+            dec_attn_out = self.self_attn(dec_input_norm, dec_input_norm,
+                                          dec_input_norm, self_attn_mask)
+            dec_attn_out += dec_input
+
+            enc_dec_attn_in = self.norm2(dec_attn_out)
+            enc_dec_attn_out = self.enc_attn(enc_dec_attn_in, enc_output,
+                                             enc_output, dec_enc_attn_mask)
+            enc_dec_attn_out += dec_attn_out
+
+            mlp_out = self.mlp(self.norm3(enc_dec_attn_out))
+            mlp_out += enc_dec_attn_out
+
+        return mlp_out
diff --git a/mmocr-dev-1.x/mmocr/models/common/losses/__init__.py b/mmocr-dev-1.x/mmocr/models/common/losses/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..336d2ed81e35a886ace8c54046abe13e1685b1ec
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/losses/__init__.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .bce_loss import (MaskedBalancedBCELoss, MaskedBalancedBCEWithLogitsLoss,
+                       MaskedBCELoss, MaskedBCEWithLogitsLoss)
+from .ce_loss import CrossEntropyLoss
+from .dice_loss import MaskedDiceLoss, MaskedSquareDiceLoss
+from .l1_loss import MaskedSmoothL1Loss, SmoothL1Loss
+
+__all__ = [
+    'MaskedBalancedBCEWithLogitsLoss', 'MaskedDiceLoss', 'MaskedSmoothL1Loss',
+    'MaskedSquareDiceLoss', 'MaskedBCEWithLogitsLoss', 'SmoothL1Loss',
+    'CrossEntropyLoss', 'MaskedBalancedBCELoss', 'MaskedBCELoss'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/common/losses/bce_loss.py b/mmocr-dev-1.x/mmocr/models/common/losses/bce_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..df4ce140dc6adb84c42dc4533dc2240dd6ca34bb
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/losses/bce_loss.py
@@ -0,0 +1,227 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Optional, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class MaskedBalancedBCEWithLogitsLoss(nn.Module):
+    """This loss combines a Sigmoid layers and a masked balanced BCE loss in
+    one single class. It's AMP-eligible.
+
+    Args:
+        reduction (str, optional): The method to reduce the loss.
+            Options are 'none', 'mean' and 'sum'. Defaults to 'none'.
+        negative_ratio (float or int, optional): Maximum ratio of negative
+            samples to positive ones. Defaults to 3.
+        fallback_negative_num (int, optional): When the mask contains no
+            positive samples, the number of negative samples to be sampled.
+            Defaults to 0.
+        eps (float, optional): Eps to avoid zero-division error.  Defaults to
+            1e-6.
+    """
+
+    def __init__(self,
+                 reduction: str = 'none',
+                 negative_ratio: Union[float, int] = 3,
+                 fallback_negative_num: int = 0,
+                 eps: float = 1e-6) -> None:
+        super().__init__()
+        assert reduction in ['none', 'mean', 'sum']
+        assert isinstance(negative_ratio, (float, int))
+        assert isinstance(fallback_negative_num, int)
+        assert isinstance(eps, float)
+        self.eps = eps
+        self.negative_ratio = negative_ratio
+        self.reduction = reduction
+        self.fallback_negative_num = fallback_negative_num
+        self.loss = nn.BCEWithLogitsLoss(reduction=reduction)
+
+    def forward(self,
+                pred: torch.Tensor,
+                gt: torch.Tensor,
+                mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            pred (torch.Tensor): The prediction in any shape.
+            gt (torch.Tensor): The learning target of the prediction in the
+                same shape as pred.
+            mask (torch.Tensor, optional): Binary mask in the same shape of
+                pred, indicating positive regions to calculate the loss. Whole
+                region will be taken into account if not provided. Defaults to
+                None.
+
+        Returns:
+            torch.Tensor: The loss value.
+        """
+
+        assert pred.size() == gt.size() and gt.numel() > 0
+        if mask is None:
+            mask = torch.ones_like(gt)
+        assert mask.size() == gt.size()
+
+        positive = (gt * mask).float()
+        negative = ((1 - gt) * mask).float()
+        positive_count = int(positive.sum())
+        if positive_count == 0:
+            negative_count = min(
+                int(negative.sum()), self.fallback_negative_num)
+        else:
+            negative_count = min(
+                int(negative.sum()), int(positive_count * self.negative_ratio))
+
+        assert gt.max() <= 1 and gt.min() >= 0
+        loss = self.loss(pred, gt)
+        positive_loss = loss * positive
+        negative_loss = loss * negative
+
+        negative_loss, _ = torch.topk(negative_loss.view(-1), negative_count)
+
+        balance_loss = (positive_loss.sum() + negative_loss.sum()) / (
+            positive_count + negative_count + self.eps)
+
+        return balance_loss
+
+
+@MODELS.register_module()
+class MaskedBalancedBCELoss(MaskedBalancedBCEWithLogitsLoss):
+    """Masked Balanced BCE loss.
+
+    Args:
+        reduction (str, optional): The method to reduce the loss.
+            Options are 'none', 'mean' and 'sum'. Defaults to 'none'.
+        negative_ratio (float or int): Maximum ratio of negative
+            samples to positive ones. Defaults to 3.
+        fallback_negative_num (int): When the mask contains no
+            positive samples, the number of negative samples to be sampled.
+            Defaults to 0.
+        eps (float): Eps to avoid zero-division error.  Defaults to
+            1e-6.
+    """
+
+    def __init__(self,
+                 reduction: str = 'none',
+                 negative_ratio: Union[float, int] = 3,
+                 fallback_negative_num: int = 0,
+                 eps: float = 1e-6) -> None:
+        super().__init__()
+        assert reduction in ['none', 'mean', 'sum']
+        assert isinstance(negative_ratio, (float, int))
+        assert isinstance(fallback_negative_num, int)
+        assert isinstance(eps, float)
+        self.eps = eps
+        self.negative_ratio = negative_ratio
+        self.reduction = reduction
+        self.fallback_negative_num = fallback_negative_num
+        self.loss = nn.BCELoss(reduction=reduction)
+
+    def forward(self,
+                pred: torch.Tensor,
+                gt: torch.Tensor,
+                mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            pred (torch.Tensor): The prediction in any shape.
+            gt (torch.Tensor): The learning target of the prediction in the
+                same shape as pred.
+            mask (torch.Tensor, optional): Binary mask in the same shape of
+                pred, indicating positive regions to calculate the loss. Whole
+                region will be taken into account if not provided. Defaults to
+                None.
+
+        Returns:
+            torch.Tensor: The loss value.
+        """
+
+        assert pred.max() <= 1 and pred.min() >= 0
+        return super().forward(pred, gt, mask)
+
+
+@MODELS.register_module()
+class MaskedBCEWithLogitsLoss(nn.Module):
+    """This loss combines a Sigmoid layers and a masked BCE loss in one single
+    class. It's AMP-eligible.
+
+    Args:
+        eps (float): Eps to avoid zero-division error.  Defaults to
+            1e-6.
+    """
+
+    def __init__(self, eps: float = 1e-6) -> None:
+        super().__init__()
+        assert isinstance(eps, float)
+        self.eps = eps
+        self.loss = nn.BCEWithLogitsLoss(reduction='none')
+
+    def forward(self,
+                pred: torch.Tensor,
+                gt: torch.Tensor,
+                mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            pred (torch.Tensor): The prediction in any shape.
+            gt (torch.Tensor): The learning target of the prediction in the
+                same shape as pred.
+            mask (torch.Tensor, optional): Binary mask in the same shape of
+                pred, indicating positive regions to calculate the loss. Whole
+                region will be taken into account if not provided. Defaults to
+                None.
+
+        Returns:
+            torch.Tensor: The loss value.
+        """
+
+        assert pred.size() == gt.size() and gt.numel() > 0
+        if mask is None:
+            mask = torch.ones_like(gt)
+        assert mask.size() == gt.size()
+
+        assert gt.max() <= 1 and gt.min() >= 0
+        loss = self.loss(pred, gt)
+
+        return (loss * mask).sum() / (mask.sum() + self.eps)
+
+
+@MODELS.register_module()
+class MaskedBCELoss(MaskedBCEWithLogitsLoss):
+    """Masked BCE loss.
+
+    Args:
+        eps (float): Eps to avoid zero-division error.  Defaults to
+            1e-6.
+    """
+
+    def __init__(self, eps: float = 1e-6) -> None:
+        super().__init__()
+        assert isinstance(eps, float)
+        self.eps = eps
+        self.loss = nn.BCELoss(reduction='none')
+
+    def forward(self,
+                pred: torch.Tensor,
+                gt: torch.Tensor,
+                mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            pred (torch.Tensor): The prediction in any shape.
+            gt (torch.Tensor): The learning target of the prediction in the
+                same shape as pred.
+            mask (torch.Tensor, optional): Binary mask in the same shape of
+                pred, indicating positive regions to calculate the loss. Whole
+                region will be taken into account if not provided. Defaults to
+                None.
+
+        Returns:
+            torch.Tensor: The loss value.
+        """
+
+        assert pred.max() <= 1 and pred.min() >= 0
+
+        return super().forward(pred, gt, mask)
diff --git a/mmocr-dev-1.x/mmocr/models/common/losses/ce_loss.py b/mmocr-dev-1.x/mmocr/models/common/losses/ce_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..9ff498723d9cbae1d71808ab028cd870da86b3b1
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/losses/ce_loss.py
@@ -0,0 +1,9 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class CrossEntropyLoss(nn.CrossEntropyLoss):
+    """Cross entropy loss."""
diff --git a/mmocr-dev-1.x/mmocr/models/common/losses/dice_loss.py b/mmocr-dev-1.x/mmocr/models/common/losses/dice_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..37d2d3d1926263e85c4fd4b98c8f98087405686e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/losses/dice_loss.py
@@ -0,0 +1,112 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Optional
+
+import torch
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class MaskedDiceLoss(nn.Module):
+    """Masked dice loss.
+
+    Args:
+        eps (float, optional): Eps to avoid zero-divison error.  Defaults to
+            1e-6.
+    """
+
+    def __init__(self, eps: float = 1e-6) -> None:
+        super().__init__()
+        assert isinstance(eps, float)
+        self.eps = eps
+
+    def forward(self,
+                pred: torch.Tensor,
+                gt: torch.Tensor,
+                mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            pred (torch.Tensor): The prediction in any shape.
+            gt (torch.Tensor): The learning target of the prediction in the
+                same shape as pred.
+            mask (torch.Tensor, optional): Binary mask in the same shape of
+                pred, indicating positive regions to calculate the loss. Whole
+                region will be taken into account if not provided. Defaults to
+                None.
+
+        Returns:
+            torch.Tensor: The loss value.
+        """
+
+        assert pred.size() == gt.size() and gt.numel() > 0
+        if mask is None:
+            mask = torch.ones_like(gt)
+        assert mask.size() == gt.size()
+
+        pred = pred.contiguous().view(pred.size(0), -1)
+        gt = gt.contiguous().view(gt.size(0), -1)
+
+        mask = mask.contiguous().view(mask.size(0), -1)
+        pred = pred * mask
+        gt = gt * mask
+
+        dice_coeff = (2 * (pred * gt).sum()) / (
+            pred.sum() + gt.sum() + self.eps)
+
+        return 1 - dice_coeff
+
+
+@MODELS.register_module()
+class MaskedSquareDiceLoss(nn.Module):
+    """Masked square dice loss.
+
+    Args:
+        eps (float, optional): Eps to avoid zero-divison error.  Defaults to
+            1e-3.
+    """
+
+    def __init__(self, eps: float = 1e-3) -> None:
+        super().__init__()
+        assert isinstance(eps, float)
+        self.eps = eps
+
+    def forward(self,
+                pred: torch.Tensor,
+                gt: torch.Tensor,
+                mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            pred (torch.Tensor): The prediction in any shape.
+            gt (torch.Tensor): The learning target of the prediction in the
+                same shape as pred.
+            mask (torch.Tensor, optional): Binary mask in the same shape of
+                pred, indicating positive regions to calculate the loss. Whole
+                region will be taken into account if not provided. Defaults to
+                None.
+
+        Returns:
+            torch.Tensor: The loss value.
+        """
+        assert pred.size() == gt.size() and gt.numel() > 0
+        if mask is None:
+            mask = torch.ones_like(gt)
+        assert mask.size() == gt.size()
+        batch_size = pred.size(0)
+        pred = pred.contiguous().view(batch_size, -1)
+        gt = gt.contiguous().view(batch_size, -1).float()
+        mask = mask.contiguous().view(batch_size, -1).float()
+
+        pred = pred * mask
+        gt = gt * mask
+
+        a = torch.sum(pred * gt, dim=1)
+        b = torch.sum(pred * pred, dim=1) + self.eps
+        c = torch.sum(gt * gt, dim=1) + self.eps
+        d = (2 * a) / (b + c)
+        loss = 1 - d
+
+        loss = torch.mean(loss)
+        return loss
diff --git a/mmocr-dev-1.x/mmocr/models/common/losses/l1_loss.py b/mmocr-dev-1.x/mmocr/models/common/losses/l1_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..68771a328ddedb4d0d4b925626a3abbb17ab9a7c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/losses/l1_loss.py
@@ -0,0 +1,70 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Optional, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr import digit_version
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class SmoothL1Loss(nn.SmoothL1Loss):
+    """Smooth L1 loss."""
+
+
+@MODELS.register_module()
+class MaskedSmoothL1Loss(nn.Module):
+    """Masked Smooth L1 loss.
+
+    Args:
+        beta (float, optional): The threshold in the piecewise function.
+            Defaults to 1.
+        eps (float, optional): Eps to avoid zero-division error.  Defaults to
+            1e-6.
+    """
+
+    def __init__(self, beta: Union[float, int] = 1, eps: float = 1e-6) -> None:
+        super().__init__()
+        if digit_version(torch.__version__) > digit_version('1.6.0'):
+            if digit_version(torch.__version__) >= digit_version(
+                    '1.13.0') and beta == 0:
+                beta = beta + eps
+            self.smooth_l1_loss = nn.SmoothL1Loss(beta=beta, reduction='none')
+        self.eps = eps
+        self.beta = beta
+
+    def forward(self,
+                pred: torch.Tensor,
+                gt: torch.Tensor,
+                mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            pred (torch.Tensor): The prediction in any shape.
+            gt (torch.Tensor): The learning target of the prediction in the
+                same shape as pred.
+            mask (torch.Tensor, optional): Binary mask in the same shape of
+                pred, indicating positive regions to calculate the loss. Whole
+                region will be taken into account if not provided. Defaults to
+                None.
+
+        Returns:
+            torch.Tensor: The loss value.
+        """
+
+        assert pred.size() == gt.size() and gt.numel() > 0
+        if mask is None:
+            mask = torch.ones_like(gt).bool()
+        assert mask.size() == gt.size()
+        x = pred * mask
+        y = gt * mask
+        if digit_version(torch.__version__) > digit_version('1.6.0'):
+            loss = self.smooth_l1_loss(x, y)
+        else:
+            loss = torch.zeros_like(gt)
+            diff = torch.abs(x - y)
+            mask_beta = diff < self.beta
+            loss[mask_beta] = 0.5 * torch.square(diff)[mask_beta] / self.beta
+            loss[~mask_beta] = diff[~mask_beta] - 0.5 * self.beta
+        return loss.sum() / (mask.sum() + self.eps)
diff --git a/mmocr-dev-1.x/mmocr/models/common/modules/__init__.py b/mmocr-dev-1.x/mmocr/models/common/modules/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..30960fd5dd45f069c4ae2f6c74ec66d5eecb13b8
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/modules/__init__.py
@@ -0,0 +1,9 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .transformer_module import (MultiHeadAttention, PositionalEncoding,
+                                 PositionwiseFeedForward,
+                                 ScaledDotProductAttention)
+
+__all__ = [
+    'ScaledDotProductAttention', 'MultiHeadAttention',
+    'PositionwiseFeedForward', 'PositionalEncoding'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/common/modules/transformer_module.py b/mmocr-dev-1.x/mmocr/models/common/modules/transformer_module.py
new file mode 100644
index 0000000000000000000000000000000000000000..89dde388ae98e6da736b874746ac722992e6d0b1
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/modules/transformer_module.py
@@ -0,0 +1,164 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import numpy as np
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from mmocr.registry import MODELS
+
+
+class ScaledDotProductAttention(nn.Module):
+    """Scaled Dot-Product Attention Module. This code is adopted from
+    https://github.com/jadore801120/attention-is-all-you-need-pytorch.
+
+    Args:
+        temperature (float): The scale factor for softmax input.
+        attn_dropout (float): Dropout layer on attn_output_weights.
+    """
+
+    def __init__(self, temperature, attn_dropout=0.1):
+        super().__init__()
+        self.temperature = temperature
+        self.dropout = nn.Dropout(attn_dropout)
+
+    def forward(self, q, k, v, mask=None):
+
+        attn = torch.matmul(q / self.temperature, k.transpose(2, 3))
+
+        if mask is not None:
+            attn = attn.masked_fill(mask == 0, float('-inf'))
+
+        attn = self.dropout(F.softmax(attn, dim=-1))
+        output = torch.matmul(attn, v)
+
+        return output, attn
+
+
+class MultiHeadAttention(nn.Module):
+    """Multi-Head Attention module.
+
+    Args:
+        n_head (int): The number of heads in the
+            multiheadattention models (default=8).
+        d_model (int): The number of expected features
+            in the decoder inputs (default=512).
+        d_k (int): Total number of features in key.
+        d_v (int): Total number of features in value.
+        dropout (float): Dropout layer on attn_output_weights.
+        qkv_bias (bool): Add bias in projection layer. Default: False.
+    """
+
+    def __init__(self,
+                 n_head=8,
+                 d_model=512,
+                 d_k=64,
+                 d_v=64,
+                 dropout=0.1,
+                 qkv_bias=False):
+        super().__init__()
+        self.n_head = n_head
+        self.d_k = d_k
+        self.d_v = d_v
+
+        self.dim_k = n_head * d_k
+        self.dim_v = n_head * d_v
+
+        self.linear_q = nn.Linear(self.dim_k, self.dim_k, bias=qkv_bias)
+        self.linear_k = nn.Linear(self.dim_k, self.dim_k, bias=qkv_bias)
+        self.linear_v = nn.Linear(self.dim_v, self.dim_v, bias=qkv_bias)
+
+        self.attention = ScaledDotProductAttention(d_k**0.5, dropout)
+
+        self.fc = nn.Linear(self.dim_v, d_model, bias=qkv_bias)
+        self.proj_drop = nn.Dropout(dropout)
+
+    def forward(self, q, k, v, mask=None):
+        batch_size, len_q, _ = q.size()
+        _, len_k, _ = k.size()
+
+        q = self.linear_q(q).view(batch_size, len_q, self.n_head, self.d_k)
+        k = self.linear_k(k).view(batch_size, len_k, self.n_head, self.d_k)
+        v = self.linear_v(v).view(batch_size, len_k, self.n_head, self.d_v)
+
+        q, k, v = q.transpose(1, 2), k.transpose(1, 2), v.transpose(1, 2)
+
+        if mask is not None:
+            if mask.dim() == 3:
+                mask = mask.unsqueeze(1)
+            elif mask.dim() == 2:
+                mask = mask.unsqueeze(1).unsqueeze(1)
+
+        attn_out, _ = self.attention(q, k, v, mask=mask)
+
+        attn_out = attn_out.transpose(1, 2).contiguous().view(
+            batch_size, len_q, self.dim_v)
+
+        attn_out = self.fc(attn_out)
+        attn_out = self.proj_drop(attn_out)
+
+        return attn_out
+
+
+class PositionwiseFeedForward(nn.Module):
+    """Two-layer feed-forward module.
+
+    Args:
+        d_in (int): The dimension of the input for feedforward
+            network model.
+        d_hid (int): The dimension of the feedforward
+            network model.
+        dropout (float): Dropout layer on feedforward output.
+        act_cfg (dict): Activation cfg for feedforward module.
+    """
+
+    def __init__(self, d_in, d_hid, dropout=0.1, act_cfg=dict(type='Relu')):
+        super().__init__()
+        self.w_1 = nn.Linear(d_in, d_hid)
+        self.w_2 = nn.Linear(d_hid, d_in)
+        self.act = MODELS.build(act_cfg)
+        self.dropout = nn.Dropout(dropout)
+
+    def forward(self, x):
+        x = self.w_1(x)
+        x = self.act(x)
+        x = self.w_2(x)
+        x = self.dropout(x)
+
+        return x
+
+
+class PositionalEncoding(nn.Module):
+    """Fixed positional encoding with sine and cosine functions."""
+
+    def __init__(self, d_hid=512, n_position=200, dropout=0):
+        super().__init__()
+        self.dropout = nn.Dropout(p=dropout)
+
+        # Not a parameter
+        # Position table of shape (1, n_position, d_hid)
+        self.register_buffer(
+            'position_table',
+            self._get_sinusoid_encoding_table(n_position, d_hid))
+
+    def _get_sinusoid_encoding_table(self, n_position, d_hid):
+        """Sinusoid position encoding table."""
+        denominator = torch.Tensor([
+            1.0 / np.power(10000, 2 * (hid_j // 2) / d_hid)
+            for hid_j in range(d_hid)
+        ])
+        denominator = denominator.view(1, -1)
+        pos_tensor = torch.arange(n_position).unsqueeze(-1).float()
+        sinusoid_table = pos_tensor * denominator
+        sinusoid_table[:, 0::2] = torch.sin(sinusoid_table[:, 0::2])
+        sinusoid_table[:, 1::2] = torch.cos(sinusoid_table[:, 1::2])
+
+        return sinusoid_table.unsqueeze(0)
+
+    def forward(self, x):
+        """
+        Args:
+            x (Tensor): Tensor of shape (batch_size, pos_len, d_hid, ...)
+        """
+        self.device = x.device
+        x = x + self.position_table[:, :x.size(1)].clone().detach()
+        return self.dropout(x)
diff --git a/mmocr-dev-1.x/mmocr/models/common/plugins/__init__.py b/mmocr-dev-1.x/mmocr/models/common/plugins/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..1ad4c93c0dbdc9f95d23df30413c495261970bfd
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/plugins/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .common import AvgPool2d
+
+__all__ = ['AvgPool2d']
diff --git a/mmocr-dev-1.x/mmocr/models/common/plugins/common.py b/mmocr-dev-1.x/mmocr/models/common/plugins/common.py
new file mode 100644
index 0000000000000000000000000000000000000000..722b53f568002720f28c1683a2304d335b94b883
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/common/plugins/common.py
@@ -0,0 +1,40 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Optional, Tuple, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class AvgPool2d(nn.Module):
+    """Applies a 2D average pooling over an input signal composed of several
+    input planes.
+
+    It can also be used as a network plugin.
+
+    Args:
+        kernel_size (int or tuple(int)): the size of the window.
+        stride (int or tuple(int), optional): the stride of the window.
+            Defaults to None.
+        padding (int or tuple(int)): implicit zero padding. Defaults to 0.
+    """
+
+    def __init__(self,
+                 kernel_size: Union[int, Tuple[int]],
+                 stride: Optional[Union[int, Tuple[int]]] = None,
+                 padding: Union[int, Tuple[int]] = 0,
+                 **kwargs) -> None:
+        super().__init__()
+        self.model = nn.AvgPool2d(kernel_size, stride, padding)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+        Args:
+            x (Tensor): Input feature map.
+
+        Returns:
+            Tensor: Output tensor after Avgpooling layer.
+        """
+        return self.model(x)
diff --git a/mmocr-dev-1.x/mmocr/models/kie/__init__.py b/mmocr-dev-1.x/mmocr/models/kie/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..82660bae2c780c0150eee06df55f80a416ca3104
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .extractors import *  # NOQA
+from .heads import *  # NOQA
+from .module_losses import *  # NOQA
+from .postprocessors import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/models/kie/extractors/__init__.py b/mmocr-dev-1.x/mmocr/models/kie/extractors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..914d0f6903cefec1236107346e59901ac9d64fd4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/extractors/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .sdmgr import SDMGR
+
+__all__ = ['SDMGR']
diff --git a/mmocr-dev-1.x/mmocr/models/kie/extractors/sdmgr.py b/mmocr-dev-1.x/mmocr/models/kie/extractors/sdmgr.py
new file mode 100644
index 0000000000000000000000000000000000000000..670dcdf59827ffb2ea3926474cddbdef76bdb105
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/extractors/sdmgr.py
@@ -0,0 +1,191 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, List, Optional, Sequence, Tuple
+
+import torch
+from mmdet.structures.bbox import bbox2roi
+from mmengine.model import BaseModel
+from torch import nn
+
+from mmocr.registry import MODELS, TASK_UTILS
+from mmocr.structures import KIEDataSample
+
+
+@MODELS.register_module()
+class SDMGR(BaseModel):
+    """The implementation of the paper: Spatial Dual-Modality Graph Reasoning
+    for Key Information Extraction. https://arxiv.org/abs/2103.14470.
+
+    Args:
+        backbone (dict, optional): Config of backbone. If None, None will be
+            passed to kie_head during training and testing. Defaults to None.
+        roi_extractor (dict, optional): Config of roi extractor. Only
+            applicable when backbone is not None. Defaults to None.
+        neck (dict, optional): Config of neck. Defaults to None.
+        kie_head (dict): Config of KIE head. Defaults to None.
+        dictionary (dict, optional): Config of dictionary. Defaults to None.
+        data_preprocessor (dict or ConfigDict, optional): The pre-process
+            config of :class:`BaseDataPreprocessor`.  it usually includes,
+            ``pad_size_divisor``, ``pad_value``, ``mean`` and ``std``. It has
+            to be None when working in non-visual mode. Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 backbone: Optional[Dict] = None,
+                 roi_extractor: Optional[Dict] = None,
+                 neck: Optional[Dict] = None,
+                 kie_head: Dict = None,
+                 dictionary: Optional[Dict] = None,
+                 data_preprocessor: Optional[Dict] = None,
+                 init_cfg: Optional[Dict] = None) -> None:
+        super().__init__(
+            data_preprocessor=data_preprocessor, init_cfg=init_cfg)
+        if dictionary is not None:
+            self.dictionary = TASK_UTILS.build(dictionary)
+            if kie_head.get('dictionary', None) is None:
+                kie_head.update(dictionary=self.dictionary)
+            else:
+                warnings.warn(f"Using dictionary {kie_head['dictionary']} "
+                              "in kie_head's config.")
+        if backbone is not None:
+            self.backbone = MODELS.build(backbone)
+            self.extractor = MODELS.build({
+                **roi_extractor, 'out_channels':
+                self.backbone.base_channels
+            })
+            self.maxpool = nn.MaxPool2d(
+                roi_extractor['roi_layer']['output_size'])
+        if neck is not None:
+            self.neck = MODELS.build(neck)
+        self.kie_head = MODELS.build(kie_head)
+
+    def extract_feat(self, img: torch.Tensor,
+                     gt_bboxes: List[torch.Tensor]) -> torch.Tensor:
+        """Extract features from images if self.backbone is not None. It
+        returns None otherwise.
+
+        Args:
+            img (torch.Tensor): The input image with shape (N, C, H, W).
+            gt_bboxes (list[torch.Tensor)): A list of ground truth bounding
+                boxes, each of shape :math:`(N_i, 4)`.
+
+        Returns:
+            torch.Tensor: The extracted features with shape (N, E).
+        """
+        if not hasattr(self, 'backbone'):
+            return None
+        x = self.backbone(img)
+        if hasattr(self, 'neck'):
+            x = self.neck(x)
+        x = x[-1]
+        feats = self.maxpool(self.extractor([x], bbox2roi(gt_bboxes)))
+        return feats.view(feats.size(0), -1)
+
+    def forward(self,
+                inputs: torch.Tensor,
+                data_samples: Sequence[KIEDataSample] = None,
+                mode: str = 'tensor',
+                **kwargs) -> torch.Tensor:
+        """The unified entry for a forward process in both training and test.
+
+        The method should accept three modes: "tensor", "predict" and "loss":
+
+        - "tensor": Forward the whole network and return tensor or tuple of
+        tensor without any post-processing, same as a common nn.Module.
+        - "predict": Forward and return the predictions, which are fully
+        processed to a list of :obj:`DetDataSample`.
+        - "loss": Forward and return a dict of losses according to the given
+        inputs and data samples.
+
+        Note that this method doesn't handle neither back propagation nor
+        optimizer updating, which are done in the :meth:`train_step`.
+
+        Args:
+            inputs (torch.Tensor): The input tensor with shape
+                (N, C, ...) in general.
+            data_samples (list[:obj:`DetDataSample`], optional): The
+                annotation data of every samples. Defaults to None.
+            mode (str): Return what kind of value. Defaults to 'tensor'.
+
+        Returns:
+            The return type depends on ``mode``.
+
+            - If ``mode="tensor"``, return a tensor or a tuple of tensor.
+            - If ``mode="predict"``, return a list of :obj:`DetDataSample`.
+            - If ``mode="loss"``, return a dict of tensor.
+        """
+        if mode == 'loss':
+            return self.loss(inputs, data_samples, **kwargs)
+        elif mode == 'predict':
+            return self.predict(inputs, data_samples, **kwargs)
+        elif mode == 'tensor':
+            return self._forward(inputs, data_samples, **kwargs)
+        else:
+            raise RuntimeError(f'Invalid mode "{mode}". '
+                               'Only supports loss, predict and tensor mode')
+
+    def loss(self, inputs: torch.Tensor, data_samples: Sequence[KIEDataSample],
+             **kwargs) -> dict:
+        """Calculate losses from a batch of inputs and data samples.
+
+        Args:
+            inputs (torch.Tensor): Input images of shape (N, C, H, W).
+                Typically these should be mean centered and std scaled.
+            data_samples (list[KIEDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images.
+        Returns:
+            dict[str, Tensor]: A dictionary of loss components.
+        """
+        x = self.extract_feat(
+            inputs,
+            [data_sample.gt_instances.bboxes for data_sample in data_samples])
+        return self.kie_head.loss(x, data_samples)
+
+    def predict(self, inputs: torch.Tensor,
+                data_samples: Sequence[KIEDataSample],
+                **kwargs) -> List[KIEDataSample]:
+        """Predict results from a batch of inputs and data samples with post-
+        processing.
+        Args:
+            inputs (torch.Tensor): Input images of shape (N, C, H, W).
+                Typically these should be mean centered and std scaled.
+            data_samples (list[KIEDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images.
+
+        Returns:
+            List[KIEDataSample]: A list of datasamples of prediction results.
+            Results are stored in ``pred_instances.labels`` and
+            ``pred_instances.edge_labels``.
+        """
+        x = self.extract_feat(
+            inputs,
+            [data_sample.gt_instances.bboxes for data_sample in data_samples])
+        return self.kie_head.predict(x, data_samples)
+
+    def _forward(self, inputs: torch.Tensor,
+                 data_samples: Sequence[KIEDataSample],
+                 **kwargs) -> Tuple[torch.Tensor, torch.Tensor]:
+        """Get the raw tensor outputs from backbone and head without any post-
+        processing.
+
+        Args:
+            inputs (torch.Tensor): Input images of shape (N, C, H, W).
+                Typically these should be mean centered and std scaled.
+            data_samples (list[KIEDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images.
+
+        Returns:
+            tuple(torch.Tensor, torch.Tensor): Tensor output from head.
+
+            - node_cls (torch.Tensor): Node classification output.
+            - edge_cls (torch.Tensor): Edge classification output.
+        """
+        x = self.extract_feat(
+            inputs,
+            [data_sample.gt_instances.bboxes for data_sample in data_samples])
+        return self.kie_head(x, data_samples)
diff --git a/mmocr-dev-1.x/mmocr/models/kie/heads/__init__.py b/mmocr-dev-1.x/mmocr/models/kie/heads/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..1c08ed6ffa4f8b177c56a947da9b49980ab0a2c2
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/heads/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .sdmgr_head import SDMGRHead
+
+__all__ = ['SDMGRHead']
diff --git a/mmocr-dev-1.x/mmocr/models/kie/heads/sdmgr_head.py b/mmocr-dev-1.x/mmocr/models/kie/heads/sdmgr_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..311e870941f212f26a504afd4b6c30ccc0d9cc7e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/heads/sdmgr_head.py
@@ -0,0 +1,377 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import torch
+from mmengine.model import BaseModule
+from torch import Tensor, nn
+from torch.nn import functional as F
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS, TASK_UTILS
+from mmocr.structures import KIEDataSample
+
+
+@MODELS.register_module()
+class SDMGRHead(BaseModule):
+    """SDMGR Head.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        num_classes (int): Number of class labels. Defaults to 26.
+        visual_dim (int): Dimension of visual features :math:`E`. Defaults to
+            64.
+        fusion_dim (int): Dimension of fusion layer. Defaults to 1024.
+        node_input (int): Dimension of raw node embedding. Defaults to 32.
+        node_embed (int): Dimension of node embedding. Defaults to 256.
+        edge_input (int): Dimension of raw edge embedding. Defaults to 5.
+        edge_embed (int): Dimension of edge embedding. Defaults to 256.
+        num_gnn (int): Number of GNN layers. Defaults to 2.
+        bidirectional (bool): Whether to use bidirectional RNN to embed nodes.
+            Defaults to False.
+        relation_norm (float): Norm to map value from one range to another.=
+            Defaults to 10.
+        module_loss (dict): Module Loss config. Defaults to
+            ``dict(type='SDMGRModuleLoss')``.
+        postprocessor (dict): Postprocessor config. Defaults to
+            ``dict(type='SDMGRPostProcessor')``.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        dictionary: Union[Dictionary, Dict],
+        num_classes: int = 26,
+        visual_dim: int = 64,
+        fusion_dim: int = 1024,
+        node_input: int = 32,
+        node_embed: int = 256,
+        edge_input: int = 5,
+        edge_embed: int = 256,
+        num_gnn: int = 2,
+        bidirectional: bool = False,
+        relation_norm: float = 10.,
+        module_loss: Dict = dict(type='SDMGRModuleLoss'),
+        postprocessor: Dict = dict(type='SDMGRPostProcessor'),
+        init_cfg: Optional[Union[Dict, List[Dict]]] = dict(
+            type='Normal', override=dict(name='edge_embed'), mean=0, std=0.01)
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(dictionary, (dict, Dictionary))
+        if isinstance(dictionary, dict):
+            self.dictionary = TASK_UTILS.build(dictionary)
+        elif isinstance(dictionary, Dictionary):
+            self.dictionary = dictionary
+
+        self.fusion = FusionBlock([visual_dim, node_embed], node_embed,
+                                  fusion_dim)
+        self.node_embed = nn.Embedding(self.dictionary.num_classes, node_input,
+                                       self.dictionary.padding_idx)
+        hidden = node_embed // 2 if bidirectional else node_embed
+        self.rnn = nn.LSTM(
+            input_size=node_input,
+            hidden_size=hidden,
+            num_layers=1,
+            batch_first=True,
+            bidirectional=bidirectional)
+        self.edge_embed = nn.Linear(edge_input, edge_embed)
+        self.gnn_layers = nn.ModuleList(
+            [GNNLayer(node_embed, edge_embed) for _ in range(num_gnn)])
+        self.node_cls = nn.Linear(node_embed, num_classes)
+        self.edge_cls = nn.Linear(edge_embed, 2)
+        self.module_loss = MODELS.build(module_loss)
+        self.postprocessor = MODELS.build(postprocessor)
+        self.relation_norm = relation_norm
+
+    def loss(self, inputs: Tensor, data_samples: List[KIEDataSample]) -> Dict:
+        """Calculate losses from a batch of inputs and data samples.
+        Args:
+            inputs (torch.Tensor): Shape :math:`(N, E)`.
+            data_samples (List[KIEDataSample]): List of data samples.
+
+        Returns:
+            dict[str, tensor]: A dictionary of loss components.
+        """
+        preds = self.forward(inputs, data_samples)
+        return self.module_loss(preds, data_samples)
+
+    def predict(self, inputs: Tensor,
+                data_samples: List[KIEDataSample]) -> List[KIEDataSample]:
+        """Predict results from a batch of inputs and data samples with post-
+        processing.
+
+        Args:
+            inputs (torch.Tensor): Shape :math:`(N, E)`.
+            data_samples (List[KIEDataSample]): List of data samples.
+
+        Returns:
+            List[KIEDataSample]: A list of datasamples of prediction results.
+            Results are stored in ``pred_instances.labels``,
+            ``pred_instances.scores``, ``pred_instances.edge_labels`` and
+            ``pred_instances.edge_scores``.
+
+            - labels (Tensor): An integer tensor of shape (N, ) indicating bbox
+              labels for each image.
+            - scores (Tensor): A float tensor of shape (N, ), indicating the
+              confidence scores for node label predictions.
+            - edge_labels (Tensor): An integer tensor of shape (N, N)
+              indicating the connection between nodes. Options are 0, 1.
+            - edge_scores (Tensor): A float tensor of shape (N, ), indicating
+              the confidence scores for edge predictions.
+        """
+        preds = self.forward(inputs, data_samples)
+        return self.postprocessor(preds, data_samples)
+
+    def forward(self, inputs: Tensor,
+                data_samples: List[KIEDataSample]) -> Tuple[Tensor, Tensor]:
+        """
+        Args:
+            inputs (torch.Tensor): Shape :math:`(N, E)`.
+            data_samples (List[KIEDataSample]): List of data samples.
+
+        Returns:
+            tuple(Tensor, Tensor):
+
+            - node_cls (Tensor): Raw logits scores for nodes. Shape
+              :math:`(N, C_{l})` where :math:`C_{l}` is number of classes.
+            - edge_cls (Tensor): Raw logits scores for edges. Shape
+              :math:`(N * N, 2)`.
+        """
+
+        device = self.node_embed.weight.device
+
+        node_nums, char_nums, all_nodes = self.convert_texts(data_samples)
+
+        embed_nodes = self.node_embed(all_nodes.to(device).long())
+        rnn_nodes, _ = self.rnn(embed_nodes)
+
+        nodes = rnn_nodes.new_zeros(*rnn_nodes.shape[::2])
+        all_nums = torch.cat(char_nums).to(device)
+        valid = all_nums > 0
+        nodes[valid] = rnn_nodes[valid].gather(
+            1, (all_nums[valid] - 1).unsqueeze(-1).unsqueeze(-1).expand(
+                -1, -1, rnn_nodes.size(-1))).squeeze(1)
+
+        if inputs is not None:
+            nodes = self.fusion([inputs, nodes])
+
+        relations = self.compute_relations(data_samples)
+        all_edges = torch.cat(
+            [relation.view(-1, relation.size(-1)) for relation in relations],
+            dim=0)
+        embed_edges = self.edge_embed(all_edges.float())
+        embed_edges = F.normalize(embed_edges)
+
+        for gnn_layer in self.gnn_layers:
+            nodes, embed_edges = gnn_layer(nodes, embed_edges, node_nums)
+
+        node_cls, edge_cls = self.node_cls(nodes), self.edge_cls(embed_edges)
+        return node_cls, edge_cls
+
+    def convert_texts(
+        self, data_samples: List[KIEDataSample]
+    ) -> Tuple[List[Tensor], List[Tensor], Tensor]:
+        """Extract texts in datasamples and pack them into a batch.
+
+        Args:
+            data_samples (List[KIEDataSample]): List of data samples.
+
+        Returns:
+            tuple(List[int], List[Tensor], Tensor):
+
+            - node_nums (List[int]): A list of node numbers for each
+              sample.
+            - char_nums (List[Tensor]): A list of character numbers for each
+              sample.
+            - nodes (Tensor): A tensor of shape :math:`(N, C)` where
+              :math:`C` is the maximum number of characters in a sample.
+        """
+        node_nums, char_nums = [], []
+        max_len = -1
+        text_idxs = []
+        for data_sample in data_samples:
+            node_nums.append(len(data_sample.gt_instances.texts))
+            for text in data_sample.gt_instances.texts:
+                text_idxs.append(self.dictionary.str2idx(text))
+                max_len = max(max_len, len(text))
+
+        nodes = torch.zeros((sum(node_nums), max_len),
+                            dtype=torch.long) + self.dictionary.padding_idx
+        for i, text_idx in enumerate(text_idxs):
+            nodes[i, :len(text_idx)] = torch.LongTensor(text_idx)
+        char_nums = (nodes != self.dictionary.padding_idx).sum(-1).split(
+            node_nums, dim=0)
+        return node_nums, char_nums, nodes
+
+    def compute_relations(self, data_samples: List[KIEDataSample]) -> Tensor:
+        """Compute the relations between every two boxes for each datasample,
+        then return the concatenated relations."""
+
+        relations = []
+        for data_sample in data_samples:
+            bboxes = data_sample.gt_instances.bboxes
+            x1, y1 = bboxes[:, 0:1], bboxes[:, 1:2]
+            x2, y2 = bboxes[:, 2:3], bboxes[:, 3:4]
+            w, h = torch.clamp(
+                x2 - x1 + 1, min=1), torch.clamp(
+                    y2 - y1 + 1, min=1)
+            dx = (x1.t() - x1) / self.relation_norm
+            dy = (y1.t() - y1) / self.relation_norm
+            xhh, xwh = h.T / h, w.T / h
+            whs = w / h + torch.zeros_like(xhh)
+            relation = torch.stack([dx, dy, whs, xhh, xwh], -1).float()
+            relations.append(relation)
+        return relations
+
+
+class GNNLayer(nn.Module):
+    """GNN layer for SDMGR.
+
+    Args:
+        node_dim (int): Dimension of node embedding. Defaults to 256.
+        edge_dim (int): Dimension of edge embedding. Defaults to 256.
+    """
+
+    def __init__(self, node_dim: int = 256, edge_dim: int = 256) -> None:
+        super().__init__()
+        self.in_fc = nn.Linear(node_dim * 2 + edge_dim, node_dim)
+        self.coef_fc = nn.Linear(node_dim, 1)
+        self.out_fc = nn.Linear(node_dim, node_dim)
+        self.relu = nn.ReLU()
+
+    def forward(self, nodes: Tensor, edges: Tensor,
+                nums: List[int]) -> Tuple[Tensor, Tensor]:
+        """Forward function.
+
+        Args:
+            nodes (Tensor): Concatenated node embeddings.
+            edges (Tensor): Concatenated edge embeddings.
+            nums (List[int]): List of number of nodes in each batch.
+
+        Returns:
+            tuple(Tensor, Tensor):
+
+            - nodes (Tensor): New node embeddings.
+            - edges (Tensor): New edge embeddings.
+        """
+        start, cat_nodes = 0, []
+        for num in nums:
+            sample_nodes = nodes[start:start + num]
+            cat_nodes.append(
+                torch.cat([
+                    sample_nodes.unsqueeze(1).expand(-1, num, -1),
+                    sample_nodes.unsqueeze(0).expand(num, -1, -1)
+                ], -1).view(num**2, -1))
+            start += num
+        cat_nodes = torch.cat([torch.cat(cat_nodes), edges], -1)
+        cat_nodes = self.relu(self.in_fc(cat_nodes))
+        coefs = self.coef_fc(cat_nodes)
+
+        start, residuals = 0, []
+        for num in nums:
+            residual = F.softmax(
+                -torch.eye(num).to(coefs.device).unsqueeze(-1) * 1e9 +
+                coefs[start:start + num**2].view(num, num, -1), 1)
+            residuals.append(
+                (residual *
+                 cat_nodes[start:start + num**2].view(num, num, -1)).sum(1))
+            start += num**2
+
+        nodes += self.relu(self.out_fc(torch.cat(residuals)))
+        return nodes, cat_nodes
+
+
+class FusionBlock(nn.Module):
+    """Fusion block of SDMGR.
+
+    Args:
+        input_dims (tuple(int, int)): Visual dimension and node embedding
+            dimension.
+        output_dim (int): Output dimension.
+        mm_dim (int): Model dimension. Defaults to 1600.
+        chunks (int): Number of chunks. Defaults to 20.
+        rank (int): Rank number. Defaults to 15.
+        shared (bool): Whether to share the project layer between visual and
+            node embedding features. Defaults to False.
+        dropout_input (float): Dropout rate after the first projection layer.
+            Defaults to 0.
+        dropout_pre_lin (float): Dropout rate before the final project layer.
+            Defaults to 0.
+        dropout_pre_lin (float): Dropout rate after the final project layer.
+            Defaults to 0.
+        pos_norm (str): The normalization position. Options are 'before_cat'
+            and 'after_cat'. Defaults to 'before_cat'.
+    """
+
+    def __init__(self,
+                 input_dims: Tuple[int, int],
+                 output_dim: int,
+                 mm_dim: int = 1600,
+                 chunks: int = 20,
+                 rank: int = 15,
+                 shared: bool = False,
+                 dropout_input: float = 0.,
+                 dropout_pre_lin: float = 0.,
+                 dropout_output: float = 0.,
+                 pos_norm: str = 'before_cat') -> None:
+        super().__init__()
+        self.rank = rank
+        self.dropout_input = dropout_input
+        self.dropout_pre_lin = dropout_pre_lin
+        self.dropout_output = dropout_output
+        assert (pos_norm in ['before_cat', 'after_cat'])
+        self.pos_norm = pos_norm
+        # Modules
+        self.linear0 = nn.Linear(input_dims[0], mm_dim)
+        self.linear1 = (
+            self.linear0 if shared else nn.Linear(input_dims[1], mm_dim))
+        self.merge_linears0 = nn.ModuleList()
+        self.merge_linears1 = nn.ModuleList()
+        self.chunks = self.chunk_sizes(mm_dim, chunks)
+        for size in self.chunks:
+            ml0 = nn.Linear(size, size * rank)
+            self.merge_linears0.append(ml0)
+            ml1 = ml0 if shared else nn.Linear(size, size * rank)
+            self.merge_linears1.append(ml1)
+        self.linear_out = nn.Linear(mm_dim, output_dim)
+
+    def forward(self, x: Tensor) -> Tensor:
+        """Forward function."""
+        x0 = self.linear0(x[0])
+        x1 = self.linear1(x[1])
+        bs = x1.size(0)
+        if self.dropout_input > 0:
+            x0 = F.dropout(x0, p=self.dropout_input, training=self.training)
+            x1 = F.dropout(x1, p=self.dropout_input, training=self.training)
+        x0_chunks = torch.split(x0, self.chunks, -1)
+        x1_chunks = torch.split(x1, self.chunks, -1)
+        zs = []
+        for x0_c, x1_c, m0, m1 in zip(x0_chunks, x1_chunks,
+                                      self.merge_linears0,
+                                      self.merge_linears1):
+            m = m0(x0_c) * m1(x1_c)  # bs x split_size*rank
+            m = m.view(bs, self.rank, -1)
+            z = torch.sum(m, 1)
+            if self.pos_norm == 'before_cat':
+                z = torch.sqrt(F.relu(z)) - torch.sqrt(F.relu(-z))
+                z = F.normalize(z)
+            zs.append(z)
+        z = torch.cat(zs, 1)
+        if self.pos_norm == 'after_cat':
+            z = torch.sqrt(F.relu(z)) - torch.sqrt(F.relu(-z))
+            z = F.normalize(z)
+
+        if self.dropout_pre_lin > 0:
+            z = F.dropout(z, p=self.dropout_pre_lin, training=self.training)
+        z = self.linear_out(z)
+        if self.dropout_output > 0:
+            z = F.dropout(z, p=self.dropout_output, training=self.training)
+        return z
+
+    @staticmethod
+    def chunk_sizes(dim: int, chunks: int) -> List[int]:
+        """Compute chunk sizes."""
+        split_size = (dim + chunks - 1) // chunks
+        sizes_list = [split_size] * chunks
+        sizes_list[-1] = sizes_list[-1] - (sum(sizes_list) - dim)
+        return sizes_list
diff --git a/mmocr-dev-1.x/mmocr/models/kie/module_losses/__init__.py b/mmocr-dev-1.x/mmocr/models/kie/module_losses/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..9af5550ae843622d0fa2ff81a23d7c825c3c43fd
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/module_losses/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .sdmgr_module_loss import SDMGRModuleLoss
+
+__all__ = ['SDMGRModuleLoss']
diff --git a/mmocr-dev-1.x/mmocr/models/kie/module_losses/sdmgr_module_loss.py b/mmocr-dev-1.x/mmocr/models/kie/module_losses/sdmgr_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..5dc87ea32c28d3d4fdc411e35cda79e82eb3b676
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/module_losses/sdmgr_module_loss.py
@@ -0,0 +1,65 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Tuple
+
+import torch
+from mmdet.models.losses import accuracy
+from torch import Tensor, nn
+
+from mmocr.registry import MODELS
+from mmocr.structures import KIEDataSample
+
+
+@MODELS.register_module()
+class SDMGRModuleLoss(nn.Module):
+    """The implementation the loss of key information extraction proposed in
+    the paper: `Spatial Dual-Modality Graph Reasoning for Key Information
+    Extraction <https://arxiv.org/abs/2103.14470>`_.
+
+    Args:
+        weight_node (float): Weight of node loss. Defaults to 1.0.
+        weight_edge (float): Weight of edge loss. Defaults to 1.0.
+        ignore_idx (int): Node label to ignore. Defaults to -100.
+    """
+
+    def __init__(self,
+                 weight_node: float = 1.0,
+                 weight_edge: float = 1.0,
+                 ignore_idx: int = -100) -> None:
+        super().__init__()
+        # TODO: Use MODELS.build after DRRG loss has been merged
+        self.loss_node = nn.CrossEntropyLoss(ignore_index=ignore_idx)
+        self.loss_edge = nn.CrossEntropyLoss(ignore_index=-1)
+        self.weight_node = weight_node
+        self.weight_edge = weight_edge
+        self.ignore_idx = ignore_idx
+
+    def forward(self, preds: Tuple[Tensor, Tensor],
+                data_samples: List[KIEDataSample]) -> Dict:
+        """Forward function.
+
+        Args:
+            preds (tuple(Tensor, Tensor)):
+            data_samples (list[KIEDataSample]): A list of datasamples
+                containing ``gt_instances.labels`` and
+                ``gt_instances.edge_labels``.
+
+        Returns:
+            dict(str, Tensor): Loss dict, containing ``loss_node``,
+            ``loss_edge``, ``acc_node`` and ``acc_edge``.
+        """
+        node_preds, edge_preds = preds
+        node_gts, edge_gts = [], []
+        for data_sample in data_samples:
+            node_gts.append(data_sample.gt_instances.labels)
+            edge_gts.append(data_sample.gt_instances.edge_labels.reshape(-1))
+        node_gts = torch.cat(node_gts).long()
+        edge_gts = torch.cat(edge_gts).long()
+
+        node_valids = torch.nonzero(
+            node_gts != self.ignore_idx, as_tuple=False).reshape(-1)
+        edge_valids = torch.nonzero(edge_gts != -1, as_tuple=False).reshape(-1)
+        return dict(
+            loss_node=self.weight_node * self.loss_node(node_preds, node_gts),
+            loss_edge=self.weight_edge * self.loss_edge(edge_preds, edge_gts),
+            acc_node=accuracy(node_preds[node_valids], node_gts[node_valids]),
+            acc_edge=accuracy(edge_preds[edge_valids], edge_gts[edge_valids]))
diff --git a/mmocr-dev-1.x/mmocr/models/kie/postprocessors/__init__.py b/mmocr-dev-1.x/mmocr/models/kie/postprocessors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..645904bc1beb0b8e1b4f169a8b5344de55e41f8f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/postprocessors/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .sdmgr_postprocessor import SDMGRPostProcessor
+
+__all__ = ['SDMGRPostProcessor']
diff --git a/mmocr-dev-1.x/mmocr/models/kie/postprocessors/sdmgr_postprocessor.py b/mmocr-dev-1.x/mmocr/models/kie/postprocessors/sdmgr_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..977c4f94ad087f244c8648ccd1081494e8a38d6c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/kie/postprocessors/sdmgr_postprocessor.py
@@ -0,0 +1,170 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List, Optional, Tuple
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from torch import Tensor, nn
+
+from mmocr.registry import MODELS
+from mmocr.structures import KIEDataSample
+
+
+@MODELS.register_module()
+class SDMGRPostProcessor:
+    """Postprocessor for SDMGR. It converts the node and edge scores into
+    labels and edge labels. If the link_type is not "none", it reconstructs the
+    edge labels with different strategies specified by ``link_type``, which is
+    generally known as the "openset" mode. In "openset" mode, only the edges
+    connecting from "key" to "value" nodes will be constructed.
+
+    Args:
+        link_type (str): The type of link to be constructed.
+            Defaults to 'none'. Options are:
+
+            - 'none': The simplest link type involving no edge
+              postprocessing. The edge prediction will be returned as-is.
+            - 'one-to-one': One key node can be connected to one value node.
+            - 'one-to-many': One key node can be connected to multiple value
+              nodes.
+            - 'many-to-one': Multiple key nodes can be connected to one value
+              node.
+            - 'many-to-many': No restrictions on the number of edges that a
+              key/value node can have.
+        key_node_idx (int, optional): The label index of the key node. It must
+            be specified if ``link_type`` is not "none". Defaults to None.
+        value_node_idx (int, optional): The index of the value node. It must be
+            specified if ``link_type`` is not "none". Defaults to None.
+    """
+
+    def __init__(self,
+                 link_type: str = 'none',
+                 key_node_idx: Optional[int] = None,
+                 value_node_idx: Optional[int] = None):
+        assert link_type in [
+            'one-to-one', 'one-to-many', 'many-to-one', 'many-to-many', 'none'
+        ]
+        self.link_type = link_type
+        if link_type != 'none':
+            assert key_node_idx is not None and value_node_idx is not None
+        self.key_node_idx = key_node_idx
+        self.value_node_idx = value_node_idx
+        self.softmax = nn.Softmax(dim=-1)
+
+    def __call__(self, preds: Tuple[Tensor, Tensor],
+                 data_samples: List[KIEDataSample]) -> List[KIEDataSample]:
+        """Postprocess raw outputs from SDMGR heads and pack the results into a
+        list of KIEDataSample.
+
+        Args:
+            preds (tuple[Tensor]): A tuple of raw outputs from SDMGR heads.
+            data_samples (list[KIEDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images.
+
+        Returns:
+            List[KIEDataSample]: A list of datasamples of prediction results.
+            Results are stored in ``pred_instances.labels``,
+            ``pred_instances.scores``, ``pred_instances.edge_labels`` and
+            ``pred_instances.edge_scores``.
+
+            - labels (Tensor): An integer tensor of shape (N, ) indicating bbox
+              labels for each image.
+            - scores (Tensor): A float tensor of shape (N, ), indicating the
+              confidence scores for node label predictions.
+            - edge_labels (Tensor): An integer tensor of shape (N, N)
+              indicating the connection between nodes. Options are 0, 1.
+            - edge_scores (Tensor): A float tensor of shape (N, ), indicating
+              the confidence scores for edge predictions.
+        """
+        node_preds, edge_preds = preds
+        all_node_scores = self.softmax(node_preds)
+        all_edge_scores = self.softmax(edge_preds)
+        chunk_size = [
+            data_sample.gt_instances.bboxes.shape[0]
+            for data_sample in data_samples
+        ]
+        node_scores, node_preds = torch.max(all_node_scores, dim=-1)
+        edge_scores, edge_preds = torch.max(all_edge_scores, dim=-1)
+        node_preds = node_preds.split(chunk_size, dim=0)
+        node_scores = node_scores.split(chunk_size, dim=0)
+
+        sq_chunks = [chunk**2 for chunk in chunk_size]
+        edge_preds = list(edge_preds.split(sq_chunks, dim=0))
+        edge_scores = list(edge_scores.split(sq_chunks, dim=0))
+        for i, chunk in enumerate(chunk_size):
+            edge_preds[i] = edge_preds[i].reshape((chunk, chunk))
+            edge_scores[i] = edge_scores[i].reshape((chunk, chunk))
+
+        for i in range(len(data_samples)):
+            data_samples[i].pred_instances = InstanceData()
+            data_samples[i].pred_instances.labels = node_preds[i].cpu()
+            data_samples[i].pred_instances.scores = node_scores[i].cpu()
+            if self.link_type != 'none':
+                edge_scores[i], edge_preds[i] = self.decode_edges(
+                    node_preds[i], edge_scores[i], edge_preds[i])
+            data_samples[i].pred_instances.edge_labels = edge_preds[i].cpu()
+            data_samples[i].pred_instances.edge_scores = edge_scores[i].cpu()
+
+        return data_samples
+
+    def decode_edges(self, node_labels: Tensor, edge_scores: Tensor,
+                     edge_labels: Tensor) -> Tuple[Tensor, Tensor]:
+        """Reconstruct the edges and update edge scores according to
+        ``link_type``.
+
+        Args:
+            data_sample (KIEDataSample): A datasample containing prediction
+                results.
+
+        Returns:
+            tuple(Tensor, Tensor):
+
+            - edge_scores (Tensor): A float tensor of shape (N, N)
+                indicating the confidence scores for edge predictions.
+            - edge_labels (Tensor): An integer tensor of shape (N, N)
+                indicating the connection between nodes. Options are 0, 1.
+        """
+        # Obtain the scores of the existence of edges.
+        pos_edges_scores = edge_scores.clone()
+        edge_labels_mask = edge_labels.bool()
+        pos_edges_scores[
+            ~edge_labels_mask] = 1 - pos_edges_scores[~edge_labels_mask]
+
+        # Temporarily convert the directed graph to undirected by adding
+        # reversed edges to every pair of nodes if they were already connected
+        # by an directed edge before.
+        edge_labels = torch.max(edge_labels, edge_labels.T)
+
+        # Maximize edge scores
+        edge_labels_mask = edge_labels.bool()
+        edge_scores[~edge_labels_mask] = pos_edges_scores[~edge_labels_mask]
+        new_edge_scores = torch.max(edge_scores, edge_scores.T)
+
+        # Only reconstruct the edges from key nodes to value nodes.
+        key_nodes_mask = node_labels == self.key_node_idx
+        value_nodes_mask = node_labels == self.value_node_idx
+        key2value_mask = key_nodes_mask[:, None] * value_nodes_mask[None, :]
+
+        if self.link_type == 'many-to-many':
+            new_edge_labels = (key2value_mask * edge_labels).int()
+        else:
+            new_edge_labels = torch.zeros_like(edge_labels).int()
+
+            tmp_edge_scores = new_edge_scores.clone().cpu()
+            tmp_edge_scores[~edge_labels_mask] = -1
+            tmp_edge_scores[~key2value_mask] = -1
+            # Greedily extract valid edges
+            while (tmp_edge_scores > -1).any():
+                i, j = np.unravel_index(
+                    torch.argmax(tmp_edge_scores), tmp_edge_scores.shape)
+                new_edge_labels[i, j] = 1
+                if self.link_type == 'one-to-one':
+                    tmp_edge_scores[i, :] = -1
+                    tmp_edge_scores[:, j] = -1
+                elif self.link_type == 'one-to-many':
+                    tmp_edge_scores[:, j] = -1
+                elif self.link_type == 'many-to-one':
+                    tmp_edge_scores[i, :] = -1
+
+        return new_edge_scores.cpu(), new_edge_labels.cpu()
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/__init__.py b/mmocr-dev-1.x/mmocr/models/textdet/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..b803a0d22e93cdfde7986b5fe111d2b061d9d9fb
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/__init__.py
@@ -0,0 +1,7 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .data_preprocessors import *  # NOQA
+from .detectors import *  # NOQA
+from .heads import *  # NOQA
+from .module_losses import *  # NOQA
+from .necks import *  # NOQA
+from .postprocessors import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/data_preprocessors/__init__.py b/mmocr-dev-1.x/mmocr/models/textdet/data_preprocessors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..056e8b6d5a06aff8502c0a36712f6d2a5f4ac4b5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/data_preprocessors/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .data_preprocessor import TextDetDataPreprocessor
+
+__all__ = ['TextDetDataPreprocessor']
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/data_preprocessors/data_preprocessor.py b/mmocr-dev-1.x/mmocr/models/textdet/data_preprocessors/data_preprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..990f0b146455cbf315d8f12f8f25915caa112f11
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/data_preprocessors/data_preprocessor.py
@@ -0,0 +1,99 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from numbers import Number
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch.nn as nn
+from mmengine.model import ImgDataPreprocessor
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class TextDetDataPreprocessor(ImgDataPreprocessor):
+    """Image pre-processor for detection tasks.
+
+    Comparing with the :class:`mmengine.ImgDataPreprocessor`,
+
+    1. It supports batch augmentations.
+    2. It will additionally append batch_input_shape and pad_shape
+    to data_samples considering the object detection task.
+
+    It provides the data pre-processing as follows
+
+    - Collate and move data to the target device.
+    - Pad inputs to the maximum size of current batch with defined
+      ``pad_value``. The padding size can be divisible by a defined
+      ``pad_size_divisor``
+    - Stack inputs to batch_inputs.
+    - Convert inputs from bgr to rgb if the shape of input is (3, H, W).
+    - Normalize image with defined std and mean.
+    - Do batch augmentations during training.
+
+    Args:
+        mean (Sequence[Number], optional): The pixel mean of R, G, B channels.
+            Defaults to None.
+        std (Sequence[Number], optional): The pixel standard deviation of
+            R, G, B channels. Defaults to None.
+        pad_size_divisor (int): The size of padded image should be
+            divisible by ``pad_size_divisor``. Defaults to 1.
+        pad_value (Number): The padded pixel value. Defaults to 0.
+        pad_mask (bool): Whether to pad instance masks. Defaults to False.
+        mask_pad_value (int): The padded pixel value for instance masks.
+            Defaults to 0.
+        pad_seg (bool): Whether to pad semantic segmentation maps.
+            Defaults to False.
+        seg_pad_value (int): The padded pixel value for semantic
+            segmentation maps. Defaults to 255.
+        bgr_to_rgb (bool): whether to convert image from BGR to RGB.
+            Defaults to False.
+        rgb_to_bgr (bool): whether to convert image from RGB to RGB.
+            Defaults to False.
+        batch_augments (list[dict], optional): Batch-level augmentations
+    """
+
+    def __init__(self,
+                 mean: Sequence[Number] = None,
+                 std: Sequence[Number] = None,
+                 pad_size_divisor: int = 1,
+                 pad_value: Union[float, int] = 0,
+                 bgr_to_rgb: bool = False,
+                 rgb_to_bgr: bool = False,
+                 batch_augments: Optional[List[Dict]] = None) -> None:
+        super().__init__(
+            mean=mean,
+            std=std,
+            pad_size_divisor=pad_size_divisor,
+            pad_value=pad_value,
+            bgr_to_rgb=bgr_to_rgb,
+            rgb_to_bgr=rgb_to_bgr)
+        if batch_augments is not None:
+            self.batch_augments = nn.ModuleList(
+                [MODELS.build(aug) for aug in batch_augments])
+        else:
+            self.batch_augments = None
+
+    def forward(self, data: Dict, training: bool = False) -> Dict:
+        """Perform normalization、padding and bgr2rgb conversion based on
+        ``BaseDataPreprocessor``.
+
+        Args:
+            data (dict): data sampled from dataloader.
+            training (bool): Whether to enable training time augmentation.
+
+        Returns:
+            dict: Data in the same format as the model input.
+        """
+        data = super().forward(data=data, training=training)
+        inputs, data_samples = data['inputs'], data['data_samples']
+
+        if data_samples is not None:
+            batch_input_shape = tuple(inputs[0].size()[-2:])
+            for data_sample in data_samples:
+                data_sample.set_metainfo(
+                    {'batch_input_shape': batch_input_shape})
+
+        if training and self.batch_augments is not None:
+            for batch_aug in self.batch_augments:
+                inputs, data_samples = batch_aug(inputs, data_samples)
+
+        return data
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/__init__.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..00b95bdb9aaf708a96fb4afb6a44f8b89bf489a5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/__init__.py
@@ -0,0 +1,14 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .dbnet import DBNet
+from .drrg import DRRG
+from .fcenet import FCENet
+from .mmdet_wrapper import MMDetWrapper
+from .panet import PANet
+from .psenet import PSENet
+from .single_stage_text_detector import SingleStageTextDetector
+from .textsnake import TextSnake
+
+__all__ = [
+    'SingleStageTextDetector', 'DBNet', 'PANet', 'PSENet', 'TextSnake',
+    'FCENet', 'DRRG', 'MMDetWrapper'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/base.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..a81ba0214d6bec28c0807e8a60d6ff376a6727ec
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/base.py
@@ -0,0 +1,106 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import ABCMeta, abstractmethod
+from typing import Dict, Tuple, Union
+
+import torch
+from mmengine.model import BaseModel
+from torch import Tensor
+
+from mmocr.utils.typing_utils import (DetSampleList, OptConfigType,
+                                      OptDetSampleList, OptMultiConfig)
+
+ForwardResults = Union[Dict[str, torch.Tensor], DetSampleList,
+                       Tuple[torch.Tensor], torch.Tensor]
+
+
+class BaseTextDetector(BaseModel, metaclass=ABCMeta):
+    """Base class for detectors.
+
+    Args:
+       data_preprocessor (dict or ConfigDict, optional): The pre-process
+           config of :class:`BaseDataPreprocessor`.  it usually includes,
+            ``pad_size_divisor``, ``pad_value``, ``mean`` and ``std``.
+       init_cfg (dict or ConfigDict, optional): the config to control the
+           initialization. Defaults to None.
+    """
+
+    def __init__(self,
+                 data_preprocessor: OptConfigType = None,
+                 init_cfg: OptMultiConfig = None):
+        super().__init__(
+            data_preprocessor=data_preprocessor, init_cfg=init_cfg)
+
+    @property
+    def with_neck(self) -> bool:
+        """bool: whether the detector has a neck"""
+        return hasattr(self, 'neck') and self.neck is not None
+
+    def forward(self,
+                inputs: torch.Tensor,
+                data_samples: OptDetSampleList = None,
+                mode: str = 'tensor') -> ForwardResults:
+        """The unified entry for a forward process in both training and test.
+
+        The method should accept three modes: "tensor", "predict" and "loss":
+
+        - "tensor": Forward the whole network and return tensor or tuple of
+        tensor without any post-processing, same as a common nn.Module.
+        - "predict": Forward and return the predictions, which are fully
+        processed to a list of :obj:`TextDetDataSample`.
+        - "loss": Forward and return a dict of losses according to the given
+        inputs and data samples.
+
+        Note that this method doesn't handle either back propagation or
+        parameter update, which are supposed to be done in :meth:`train_step`.
+
+        Args:
+            inputs (torch.Tensor): The input tensor with shape
+                (N, C, ...) in general.
+            data_samples (list[:obj:`TextDetDataSample`], optional): A batch of
+                data samples that contain annotations and predictions.
+                Defaults to None.
+            mode (str): Return what kind of value. Defaults to 'tensor'.
+
+        Returns:
+            The return type depends on ``mode``.
+
+            - If ``mode="tensor"``, return a tensor or a tuple of tensor.
+            - If ``mode="predict"``, return a list of :obj:`TextDetDataSample`.
+            - If ``mode="loss"``, return a dict of tensor.
+        """
+        if mode == 'loss':
+            return self.loss(inputs, data_samples)
+        elif mode == 'predict':
+            return self.predict(inputs, data_samples)
+        elif mode == 'tensor':
+            return self._forward(inputs, data_samples)
+        else:
+            raise RuntimeError(f'Invalid mode "{mode}". '
+                               'Only supports loss, predict and tensor mode')
+
+    @abstractmethod
+    def loss(self, inputs: Tensor,
+             data_samples: DetSampleList) -> Union[dict, tuple]:
+        """Calculate losses from a batch of inputs and data samples."""
+        pass
+
+    @abstractmethod
+    def predict(self, inputs: Tensor,
+                data_samples: DetSampleList) -> DetSampleList:
+        """Predict results from a batch of inputs and data samples with post-
+        processing."""
+        pass
+
+    @abstractmethod
+    def _forward(self, inputs: Tensor, data_samples: OptDetSampleList = None):
+        """Network forward process.
+
+        Usually includes backbone, neck and head forward without any post-
+        processing.
+        """
+        pass
+
+    @abstractmethod
+    def extract_feat(self, inputs: Tensor):
+        """Extract features from images."""
+        pass
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/dbnet.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/dbnet.py
new file mode 100644
index 0000000000000000000000000000000000000000..eed95b9fabd24ff17ffcba05fb814c0f1cdc9b42
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/dbnet.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .single_stage_text_detector import SingleStageTextDetector
+
+
+@MODELS.register_module()
+class DBNet(SingleStageTextDetector):
+    """The class for implementing DBNet text detector: Real-time Scene Text
+    Detection with Differentiable Binarization.
+
+    [https://arxiv.org/abs/1911.08947].
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/drrg.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/drrg.py
new file mode 100644
index 0000000000000000000000000000000000000000..04ea2da5fef75c7b2bbb51a9a7361332534f816c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/drrg.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .single_stage_text_detector import SingleStageTextDetector
+
+
+@MODELS.register_module()
+class DRRG(SingleStageTextDetector):
+    """The class for implementing DRRG text detector. Deep Relational Reasoning
+    Graph Network for Arbitrary Shape Text Detection.
+
+    [https://arxiv.org/abs/2003.07493]
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/fcenet.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/fcenet.py
new file mode 100644
index 0000000000000000000000000000000000000000..9b99f491ff8eedaeb37d64990f0c1dd8dc3c5e89
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/fcenet.py
@@ -0,0 +1,13 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .single_stage_text_detector import SingleStageTextDetector
+
+
+@MODELS.register_module()
+class FCENet(SingleStageTextDetector):
+    """The class for implementing FCENet text detector
+    FCENet(CVPR2021): Fourier Contour Embedding for Arbitrary-shaped Text
+        Detection
+
+    [https://arxiv.org/abs/2104.10442]
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/mmdet_wrapper.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/mmdet_wrapper.py
new file mode 100644
index 0000000000000000000000000000000000000000..1d6be8caa6469ab2da2e55eb1f645f9129037490
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/mmdet_wrapper.py
@@ -0,0 +1,156 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import cv2
+import torch
+from mmdet.structures import DetDataSample
+from mmdet.structures import SampleList as MMDET_SampleList
+from mmdet.structures.mask import bitmap_to_polygon
+from mmengine.model import BaseModel
+from mmengine.structures import InstanceData
+
+from mmocr.registry import MODELS
+from mmocr.utils.bbox_utils import bbox2poly
+from mmocr.utils.typing_utils import DetSampleList
+
+ForwardResults = Union[Dict[str, torch.Tensor], List[DetDataSample],
+                       Tuple[torch.Tensor], torch.Tensor]
+
+
+@MODELS.register_module()
+class MMDetWrapper(BaseModel):
+    """A wrapper of MMDet's model.
+
+    Args:
+        cfg (dict): The config of the model.
+        text_repr_type (str): The boundary encoding type 'poly' or 'quad'.
+            Defaults to 'poly'.
+    """
+
+    def __init__(self, cfg: Dict, text_repr_type: str = 'poly') -> None:
+        data_preprocessor = cfg.pop('data_preprocessor')
+        data_preprocessor.update(_scope_='mmdet')
+        super().__init__(data_preprocessor=data_preprocessor, init_cfg=None)
+        cfg['_scope_'] = 'mmdet'
+        self.wrapped_model = MODELS.build(cfg)
+        self.text_repr_type = text_repr_type
+
+    def forward(self,
+                inputs: torch.Tensor,
+                data_samples: Optional[Union[DetSampleList,
+                                             MMDET_SampleList]] = None,
+                mode: str = 'tensor',
+                **kwargs) -> ForwardResults:
+        """The unified entry for a forward process in both training and test.
+
+        The method works in three modes: "tensor", "predict" and "loss":
+
+        - "tensor": Forward the whole network and return tensor or tuple of
+        tensor without any post-processing, same as a common nn.Module.
+        - "predict": Forward and return the predictions, which are fully
+        processed to a list of :obj:`DetDataSample`.
+        - "loss": Forward and return a dict of losses according to the given
+        inputs and data samples.
+
+        Note that this method doesn't handle either back propagation or
+        parameter update, which are supposed to be done in :meth:`train_step`.
+
+        Args:
+            inputs (torch.Tensor): The input tensor with shape
+                (N, C, ...) in general.
+            data_samples (list[:obj:`DetDataSample`] or
+                list[:obj:`TextDetDataSample`]): The annotation data of every
+                sample. When in "predict" mode, it should be a list of
+                :obj:`TextDetDataSample`. Otherwise they are
+                :obj:`DetDataSample`s. Defaults to None.
+            mode (str): Running mode. Defaults to 'tensor'.
+
+        Returns:
+            The return type depends on ``mode``.
+
+            - If ``mode="tensor"``, return a tensor or a tuple of tensor.
+            - If ``mode="predict"``, return a list of :obj:`TextDetDataSample`.
+            - If ``mode="loss"``, return a dict of tensor.
+        """
+        if mode == 'predict':
+            ocr_data_samples = data_samples
+            data_samples = []
+            for i in range(len(ocr_data_samples)):
+                data_samples.append(
+                    DetDataSample(metainfo=ocr_data_samples[i].metainfo))
+
+        results = self.wrapped_model.forward(inputs, data_samples, mode,
+                                             **kwargs)
+
+        if mode == 'predict':
+            results = self.adapt_predictions(results, ocr_data_samples)
+
+        return results
+
+    def adapt_predictions(self, data: MMDET_SampleList,
+                          data_samples: DetSampleList) -> DetSampleList:
+        """Convert Instance datas from MMDet into MMOCR's format.
+
+        Args:
+            data: (list[DetDataSample]): Detection results of the
+                input images. Each DetDataSample usually contain
+                'pred_instances'. And the ``pred_instances`` usually
+                contains following keys.
+                - scores (Tensor): Classification scores, has a shape
+                    (num_instance, )
+                - labels (Tensor): Labels of bboxes, has a shape
+                    (num_instances, ).
+                - bboxes (Tensor): Has a shape (num_instances, 4),
+                    the last dimension 4 arrange as (x1, y1, x2, y2).
+                - masks (Tensor, Optional): Has a shape (num_instances, H, W).
+            data_samples (list[:obj:`TextDetDataSample`]): The annotation data
+                of every samples.
+
+        Returns:
+            list[TextDetDataSample]: A list of N datasamples containing ground
+                truth and prediction results.
+                The polygon results are saved in
+                ``TextDetDataSample.pred_instances.polygons``
+                The confidence scores are saved in
+                ``TextDetDataSample.pred_instances.scores``.
+        """
+        for i, det_data_sample in enumerate(data):
+            data_samples[i].pred_instances = InstanceData()
+            # convert mask to polygons if mask exists
+            if 'masks' in det_data_sample.pred_instances.keys():
+                masks = det_data_sample.pred_instances.masks.cpu().numpy()
+                polygons = []
+                scores = []
+                for mask_idx, mask in enumerate(masks):
+                    contours, _ = bitmap_to_polygon(mask)
+                    polygons += [contour.reshape(-1) for contour in contours]
+                    scores += [
+                        det_data_sample.pred_instances.scores[mask_idx].cpu()
+                    ] * len(contours)
+                # filter invalid polygons
+                filterd_polygons = []
+                keep_idx = []
+                for poly_idx, polygon in enumerate(polygons):
+                    if len(polygon) < 6:
+                        continue
+                    filterd_polygons.append(polygon)
+                    keep_idx.append(poly_idx)
+                # convert by text_repr_type
+                if self.text_repr_type == 'quad':
+                    for j, poly in enumerate(filterd_polygons):
+                        rect = cv2.minAreaRect(poly)
+                        vertices = cv2.boxPoints(rect)
+                        poly = vertices.flatten()
+                        filterd_polygons[j] = poly
+
+                data_samples[i].pred_instances.polygons = filterd_polygons
+                data_samples[i].pred_instances.scores = torch.FloatTensor(
+                    scores)[keep_idx]
+            else:
+                bboxes = det_data_sample.pred_instances.bboxes.cpu().numpy()
+                polygons = [bbox2poly(bbox) for bbox in bboxes]
+                data_samples[i].pred_instances.polygons = polygons
+                data_samples[i].pred_instances.scores = torch.FloatTensor(
+                    det_data_sample.pred_instances.scores.cpu())
+
+        return data_samples
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/panet.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/panet.py
new file mode 100644
index 0000000000000000000000000000000000000000..135ee1e9af33e8207286d4990bd513dfd441176e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/panet.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .single_stage_text_detector import SingleStageTextDetector
+
+
+@MODELS.register_module()
+class PANet(SingleStageTextDetector):
+    """The class for implementing PANet text detector:
+
+    Efficient and Accurate Arbitrary-Shaped Text Detection with Pixel
+    Aggregation Network [https://arxiv.org/abs/1908.05900].
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/psenet.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/psenet.py
new file mode 100644
index 0000000000000000000000000000000000000000..0ccf10a13a50e04610b6022552139c8c1ebc0a17
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/psenet.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .single_stage_text_detector import SingleStageTextDetector
+
+
+@MODELS.register_module()
+class PSENet(SingleStageTextDetector):
+    """The class for implementing PSENet text detector: Shape Robust Text
+    Detection with Progressive Scale Expansion Network.
+
+    [https://arxiv.org/abs/1806.02559].
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/single_stage_text_detector.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/single_stage_text_detector.py
new file mode 100644
index 0000000000000000000000000000000000000000..5617e26ae0507da3ee4a23475325c4ea11f94ffd
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/single_stage_text_detector.py
@@ -0,0 +1,127 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Sequence
+
+import torch
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from .base import BaseTextDetector
+
+
+@MODELS.register_module()
+class SingleStageTextDetector(BaseTextDetector):
+    """The class for implementing single stage text detector.
+
+    Single-stage text detectors directly and densely predict bounding boxes or
+    polygons on the output features of the backbone + neck (optional).
+
+    Args:
+        backbone (dict): Backbone config.
+        neck (dict, optional): Neck config. If None, the output from backbone
+            will be directly fed into ``det_head``.
+        det_head (dict): Head config.
+        data_preprocessor (dict, optional): Model preprocessing config
+            for processing the input image data. Keys allowed are
+            ``to_rgb``(bool), ``pad_size_divisor``(int), ``pad_value``(int or
+            float), ``mean``(int or float) and ``std``(int or float).
+            Preprcessing order: 1. to rgb; 2. normalization 3. pad.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 backbone: Dict,
+                 det_head: Dict,
+                 neck: Optional[Dict] = None,
+                 data_preprocessor: Optional[Dict] = None,
+                 init_cfg: Optional[Dict] = None) -> None:
+        super().__init__(
+            data_preprocessor=data_preprocessor, init_cfg=init_cfg)
+        assert det_head is not None, 'det_head cannot be None!'
+        self.backbone = MODELS.build(backbone)
+        if neck is not None:
+            self.neck = MODELS.build(neck)
+        self.det_head = MODELS.build(det_head)
+
+    def extract_feat(self, inputs: torch.Tensor) -> torch.Tensor:
+        """Extract features.
+
+        Args:
+            inputs (Tensor): Image tensor with shape (N, C, H ,W).
+
+        Returns:
+            Tensor or tuple[Tensor]: Multi-level features that may have
+            different resolutions.
+        """
+        inputs = self.backbone(inputs)
+        if self.with_neck:
+            inputs = self.neck(inputs)
+        return inputs
+
+    def loss(self, inputs: torch.Tensor,
+             data_samples: Sequence[TextDetDataSample]) -> Dict:
+        """Calculate losses from a batch of inputs and data samples.
+
+        Args:
+            inputs (torch.Tensor): Input images of shape (N, C, H, W).
+                Typically these should be mean centered and std scaled.
+            data_samples (list[TextDetDataSample]): A list of N
+                datasamples, containing meta information and gold annotations
+                for each of the images.
+        Returns:
+            dict[str, Tensor]: A dictionary of loss components.
+        """
+        inputs = self.extract_feat(inputs)
+        return self.det_head.loss(inputs, data_samples)
+
+    def predict(self, inputs: torch.Tensor,
+                data_samples: Sequence[TextDetDataSample]
+                ) -> Sequence[TextDetDataSample]:
+        """Predict results from a batch of inputs and data samples with post-
+        processing.
+
+        Args:
+            inputs (torch.Tensor): Images of shape (N, C, H, W).
+            data_samples (list[TextDetDataSample]): A list of N
+                datasamples, containing meta information and gold annotations
+                for each of the images.
+
+        Returns:
+            list[TextDetDataSample]: A list of N datasamples of prediction
+            results.  Each DetDataSample usually contain
+            'pred_instances'. And the ``pred_instances`` usually
+            contains following keys.
+
+                - scores (Tensor): Classification scores, has a shape
+                    (num_instance, )
+                - labels (Tensor): Labels of bboxes, has a shape
+                    (num_instances, ).
+                - bboxes (Tensor): Has a shape (num_instances, 4),
+                    the last dimension 4 arrange as (x1, y1, x2, y2).
+                - polygons (list[np.ndarray]): The length is num_instances.
+                    Each element represents the polygon of the
+                    instance, in (xn, yn) order.
+        """
+        x = self.extract_feat(inputs)
+        return self.det_head.predict(x, data_samples)
+
+    def _forward(self,
+                 inputs: torch.Tensor,
+                 data_samples: Optional[Sequence[TextDetDataSample]] = None,
+                 **kwargs) -> torch.Tensor:
+        """Network forward process. Usually includes backbone, neck and head
+        forward without any post-processing.
+
+         Args:
+            inputs (Tensor): Inputs with shape (N, C, H, W).
+            data_samples (list[TextDetDataSample]): A list of N
+                datasamples, containing meta information and gold annotations
+                for each of the images.
+
+        Returns:
+            Tensor or tuple[Tensor]: A tuple of features from ``det_head``
+            forward.
+        """
+        x = self.extract_feat(inputs)
+        return self.det_head(x, data_samples)
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/detectors/textsnake.py b/mmocr-dev-1.x/mmocr/models/textdet/detectors/textsnake.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a001806cb9fe7d3003cfb8c728b5d72254d6726
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/detectors/textsnake.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .single_stage_text_detector import SingleStageTextDetector
+
+
+@MODELS.register_module()
+class TextSnake(SingleStageTextDetector):
+    """The class for implementing TextSnake text detector: TextSnake: A
+    Flexible Representation for Detecting Text of Arbitrary Shapes.
+
+    [https://arxiv.org/abs/1807.01544]
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/__init__.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..5663ebebb88ab2ef0cf41e8beee86f0253288972
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .base import BaseTextDetHead
+from .db_head import DBHead
+from .drrg_head import DRRGHead
+from .fce_head import FCEHead
+from .pan_head import PANHead
+from .pse_head import PSEHead
+from .textsnake_head import TextSnakeHead
+
+__all__ = [
+    'PSEHead', 'PANHead', 'DBHead', 'FCEHead', 'TextSnakeHead', 'DRRGHead',
+    'BaseTextDetHead'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/base.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..82dee4dfc23702e5948d2ebf2e8ee8ae12560397
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/base.py
@@ -0,0 +1,133 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import torch
+from mmengine.model import BaseModule
+from torch import Tensor
+
+from mmocr.registry import MODELS
+from mmocr.utils.typing_utils import DetSampleList
+
+
+@MODELS.register_module()
+class BaseTextDetHead(BaseModule):
+    """Base head for text detection, build the loss and postprocessor.
+
+    1. The ``init_weights`` method is used to initialize head's
+    model parameters. After detector initialization, ``init_weights``
+    is triggered when ``detector.init_weights()`` is called externally.
+
+    2. The ``loss`` method is used to calculate the loss of head,
+    which includes two steps: (1) the head model performs forward
+    propagation to obtain the feature maps (2) The ``module_loss`` method
+    is called based on the feature maps to calculate the loss.
+
+    .. code:: text
+
+        loss(): forward() -> module_loss()
+
+    3. The ``predict`` method is used to predict detection results,
+    which includes two steps: (1) the head model performs forward
+    propagation to obtain the feature maps (2) The ``postprocessor`` method
+    is called based on the feature maps to predict detection results including
+    post-processing.
+
+    .. code:: text
+
+        predict(): forward() -> postprocessor()
+
+    4. The ``loss_and_predict`` method is used to return loss and detection
+    results at the same time. It will call head's ``forward``,
+    ``module_loss`` and ``postprocessor`` methods in order.
+
+    .. code:: text
+
+        loss_and_predict(): forward() -> module_loss() -> postprocessor()
+
+
+    Args:
+        loss (dict, optional): Config to build loss. Defaults to None.
+        postprocessor (dict, optional): Config to build postprocessor. Defaults
+            to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        if module_loss is not None:
+            assert isinstance(module_loss, dict)
+            self.module_loss = MODELS.build(module_loss)
+        else:
+            self.module_loss = module_loss
+        if postprocessor is not None:
+            assert isinstance(postprocessor, dict)
+            self.postprocessor = MODELS.build(postprocessor)
+        else:
+            self.postprocessor = postprocessor
+
+    def loss(self, x: Tuple[Tensor], data_samples: DetSampleList) -> dict:
+        """Perform forward propagation and loss calculation of the detection
+        head on the features of the upstream network.
+
+        Args:
+            x (tuple[Tensor]): Features from the upstream network, each is
+                a 4D-tensor.
+            data_samples (List[:obj:`DetDataSample`]): The Data
+                Samples. It usually includes information such as
+                `gt_instance`, `gt_panoptic_seg` and `gt_sem_seg`.
+
+        Returns:
+            dict: A dictionary of loss components.
+        """
+        outs = self(x, data_samples)
+        losses = self.module_loss(outs, data_samples)
+        return losses
+
+    def loss_and_predict(self, x: Tuple[Tensor], data_samples: DetSampleList
+                         ) -> Tuple[dict, DetSampleList]:
+        """Perform forward propagation of the head, then calculate loss and
+        predictions from the features and data samples.
+
+        Args:
+            x (tuple[Tensor]): Features from FPN.
+            data_samples (list[:obj:`DetDataSample`]): Each item contains
+                the meta information of each image and corresponding
+                annotations.
+
+        Returns:
+            tuple: the return value is a tuple contains:
+
+                - losses: (dict[str, Tensor]): A dictionary of loss components.
+                - predictions (list[:obj:`InstanceData`]): Detection
+                  results of each image after the post process.
+        """
+        outs = self(x, data_samples)
+        losses = self.module_loss(outs, data_samples)
+
+        predictions = self.postprocessor(outs, data_samples, self.training)
+        return losses, predictions
+
+    def predict(self, x: torch.Tensor,
+                data_samples: DetSampleList) -> DetSampleList:
+        """Perform forward propagation of the detection head and predict
+        detection results on the features of the upstream network.
+
+        Args:
+            x (tuple[Tensor]): Multi-level features from the
+                upstream network, each is a 4D-tensor.
+            data_samples (List[:obj:`DetDataSample`]): The Data
+                Samples. It usually includes information such as
+                `gt_instance`, `gt_panoptic_seg` and `gt_sem_seg`.
+
+        Returns:
+            SampleList: Detection results of each image
+            after the post process.
+        """
+        outs = self(x, data_samples)
+
+        predictions = self.postprocessor(outs, data_samples)
+        return predictions
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/db_head.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/db_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..848843e87fb2d99d44a915f8929893d218fa7d1f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/db_head.py
@@ -0,0 +1,184 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import torch
+import torch.nn as nn
+from mmengine.model import Sequential
+from torch import Tensor
+
+from mmocr.models.textdet.heads import BaseTextDetHead
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils.typing_utils import DetSampleList
+
+
+@MODELS.register_module()
+class DBHead(BaseTextDetHead):
+    """The class for DBNet head.
+
+    This was partially adapted from https://github.com/MhLiao/DB
+
+    Args:
+        in_channels (int): The number of input channels.
+        with_bias (bool): Whether add bias in Conv2d layer. Defaults to False.
+        module_loss (dict): Config of loss for dbnet. Defaults to
+            ``dict(type='DBModuleLoss')``
+        postprocessor (dict): Config of postprocessor for dbnet.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: int,
+        with_bias: bool = False,
+        module_loss: Dict = dict(type='DBModuleLoss'),
+        postprocessor: Dict = dict(
+            type='DBPostprocessor', text_repr_type='quad'),
+        init_cfg: Optional[Union[Dict, List[Dict]]] = [
+            dict(type='Kaiming', layer='Conv'),
+            dict(type='Constant', layer='BatchNorm', val=1., bias=1e-4)
+        ]
+    ) -> None:
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
+
+        assert isinstance(in_channels, int)
+        assert isinstance(with_bias, bool)
+
+        self.in_channels = in_channels
+        self.binarize = Sequential(
+            nn.Conv2d(
+                in_channels, in_channels // 4, 3, bias=with_bias, padding=1),
+            nn.BatchNorm2d(in_channels // 4), nn.ReLU(inplace=True),
+            nn.ConvTranspose2d(in_channels // 4, in_channels // 4, 2, 2),
+            nn.BatchNorm2d(in_channels // 4), nn.ReLU(inplace=True),
+            nn.ConvTranspose2d(in_channels // 4, 1, 2, 2))
+        self.threshold = self._init_thr(in_channels)
+        self.sigmoid = nn.Sigmoid()
+
+    def _diff_binarize(self, prob_map: Tensor, thr_map: Tensor,
+                       k: int) -> Tensor:
+        """Differential binarization.
+
+        Args:
+            prob_map (Tensor): Probability map.
+            thr_map (Tensor): Threshold map.
+            k (int): Amplification factor.
+
+        Returns:
+            Tensor: Binary map.
+        """
+        return torch.reciprocal(1.0 + torch.exp(-k * (prob_map - thr_map)))
+
+    def _init_thr(self,
+                  inner_channels: int,
+                  bias: bool = False) -> nn.ModuleList:
+        """Initialize threshold branch."""
+        in_channels = inner_channels
+        seq = Sequential(
+            nn.Conv2d(
+                in_channels, inner_channels // 4, 3, padding=1, bias=bias),
+            nn.BatchNorm2d(inner_channels // 4), nn.ReLU(inplace=True),
+            nn.ConvTranspose2d(inner_channels // 4, inner_channels // 4, 2, 2),
+            nn.BatchNorm2d(inner_channels // 4), nn.ReLU(inplace=True),
+            nn.ConvTranspose2d(inner_channels // 4, 1, 2, 2), nn.Sigmoid())
+        return seq
+
+    def forward(self,
+                img: Tensor,
+                data_samples: Optional[List[TextDetDataSample]] = None,
+                mode: str = 'predict') -> Tuple[Tensor, Tensor, Tensor]:
+        """
+        Args:
+            img (Tensor): Shape :math:`(N, C, H, W)`.
+            data_samples (list[TextDetDataSample], optional): A list of data
+                samples. Defaults to None.
+            mode (str): Forward mode. It affects the return values. Options are
+                "loss", "predict" and "both". Defaults to "predict".
+
+                - ``loss``: Run the full network and return the prob
+                  logits, threshold map and binary map.
+                - ``predict``: Run the binarzation part and return the prob
+                  map only.
+                - ``both``: Run the full network and return prob logits,
+                  threshold map, binary map and prob map.
+
+        Returns:
+            Tensor or tuple(Tensor): Its type depends on ``mode``, read its
+            docstring for details. Each has the shape of
+            :math:`(N, 4H, 4W)`.
+        """
+        prob_logits = self.binarize(img).squeeze(1)
+        prob_map = self.sigmoid(prob_logits)
+        if mode == 'predict':
+            return prob_map
+        thr_map = self.threshold(img).squeeze(1)
+        binary_map = self._diff_binarize(prob_map, thr_map, k=50).squeeze(1)
+        if mode == 'loss':
+            return prob_logits, thr_map, binary_map
+        return prob_logits, thr_map, binary_map, prob_map
+
+    def loss(self, x: Tuple[Tensor],
+             batch_data_samples: DetSampleList) -> Dict:
+        """Perform forward propagation and loss calculation of the detection
+        head on the features of the upstream network.
+
+        Args:
+            x (tuple[Tensor]): Features from the upstream network, each is
+                a 4D-tensor.
+            batch_data_samples (List[:obj:`DetDataSample`]): The Data
+                Samples. It usually includes information such as
+                `gt_instance`, `gt_panoptic_seg` and `gt_sem_seg`.
+
+        Returns:
+            dict: A dictionary of loss components.
+        """
+        outs = self(x, batch_data_samples, mode='loss')
+        losses = self.module_loss(outs, batch_data_samples)
+        return losses
+
+    def loss_and_predict(self, x: Tuple[Tensor],
+                         batch_data_samples: DetSampleList
+                         ) -> Tuple[dict, DetSampleList]:
+        """Perform forward propagation of the head, then calculate loss and
+        predictions from the features and data samples.
+
+        Args:
+            x (tuple[Tensor]): Features from FPN.
+            batch_data_samples (list[:obj:`DetDataSample`]): Each item contains
+                the meta information of each image and corresponding
+                annotations.
+
+        Returns:
+            tuple: the return value is a tuple contains:
+
+                - losses: (dict[str, Tensor]): A dictionary of loss components.
+                - predictions (list[:obj:`InstanceData`]): Detection
+                  results of each image after the post process.
+        """
+        outs = self(x, batch_data_samples, mode='both')
+        losses = self.module_loss(outs[:3], batch_data_samples)
+        predictions = self.postprocessor(outs[3], batch_data_samples)
+        return losses, predictions
+
+    def predict(self, x: torch.Tensor,
+                batch_data_samples: DetSampleList) -> DetSampleList:
+        """Perform forward propagation of the detection head and predict
+        detection results on the features of the upstream network.
+
+        Args:
+            x (tuple[Tensor]): Multi-level features from the
+                upstream network, each is a 4D-tensor.
+            batch_data_samples (List[:obj:`DetDataSample`]): The Data
+                Samples. It usually includes information such as
+                `gt_instance`, `gt_panoptic_seg` and `gt_sem_seg`.
+
+        Returns:
+            SampleList: Detection results of each image
+            after the post process.
+        """
+        outs = self(x, batch_data_samples, mode='predict')
+        predictions = self.postprocessor(outs, batch_data_samples)
+        return predictions
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/drrg_head.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/drrg_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..14f70858a7a80e6fa1f2ee2964b40ad3b6d2a935
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/drrg_head.py
@@ -0,0 +1,1181 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence, Tuple, Union
+
+import cv2
+import numpy as np
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+try:
+    from lanms import merge_quadrangle_n9 as la_nms
+except ImportError:
+    la_nms = None
+from mmcv.ops import RoIAlignRotated
+from mmengine.model import BaseModule
+from numpy import ndarray
+from torch import Tensor
+from torch.nn import init
+
+from mmocr.models.textdet.heads import BaseTextDetHead
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import fill_hole
+
+
+def normalize_adjacent_matrix(mat: ndarray) -> ndarray:
+    """Normalize adjacent matrix for GCN. This code was partially adapted from
+    https://github.com/GXYM/DRRG licensed under the MIT license.
+
+    Args:
+        mat (ndarray): The adjacent matrix.
+
+    returns:
+        ndarray: The normalized adjacent matrix.
+    """
+    assert mat.ndim == 2
+    assert mat.shape[0] == mat.shape[1]
+
+    mat = mat + np.eye(mat.shape[0])
+    d = np.sum(mat, axis=0)
+    d = np.clip(d, 0, None)
+    d_inv = np.power(d, -0.5).flatten()
+    d_inv[np.isinf(d_inv)] = 0.0
+    d_inv = np.diag(d_inv)
+    norm_mat = mat.dot(d_inv).transpose().dot(d_inv)
+    return norm_mat
+
+
+def euclidean_distance_matrix(mat_a: ndarray, mat_b: ndarray) -> ndarray:
+    """Calculate the Euclidean distance matrix.
+
+    Args:
+        mat_a (ndarray): The point sequence.
+        mat_b (ndarray): The point sequence with the same dimensions as mat_a.
+
+    returns:
+        ndarray: The Euclidean distance matrix.
+    """
+    assert mat_a.ndim == 2
+    assert mat_b.ndim == 2
+    assert mat_a.shape[1] == mat_b.shape[1]
+
+    m = mat_a.shape[0]
+    n = mat_b.shape[0]
+
+    mat_a_dots = (mat_a * mat_a).sum(axis=1).reshape(
+        (m, 1)) * np.ones(shape=(1, n))
+    mat_b_dots = (mat_b * mat_b).sum(axis=1) * np.ones(shape=(m, 1))
+    mat_d_squared = mat_a_dots + mat_b_dots - 2 * mat_a.dot(mat_b.T)
+
+    zero_mask = np.less(mat_d_squared, 0.0)
+    mat_d_squared[zero_mask] = 0.0
+    mat_d = np.sqrt(mat_d_squared)
+    return mat_d
+
+
+def feature_embedding(input_feats: ndarray, out_feat_len: int) -> ndarray:
+    """Embed features. This code was partially adapted from
+    https://github.com/GXYM/DRRG licensed under the MIT license.
+
+    Args:
+        input_feats (ndarray): The input features of shape (N, d), where N is
+            the number of nodes in graph, d is the input feature vector length.
+        out_feat_len (int): The length of output feature vector.
+
+    Returns:
+        ndarray: The embedded features.
+    """
+    assert input_feats.ndim == 2
+    assert isinstance(out_feat_len, int)
+    assert out_feat_len >= input_feats.shape[1]
+
+    num_nodes = input_feats.shape[0]
+    feat_dim = input_feats.shape[1]
+    feat_repeat_times = out_feat_len // feat_dim
+    residue_dim = out_feat_len % feat_dim
+
+    if residue_dim > 0:
+        embed_wave = np.array([
+            np.power(1000, 2.0 * (j // 2) / feat_repeat_times + 1)
+            for j in range(feat_repeat_times + 1)
+        ]).reshape((feat_repeat_times + 1, 1, 1))
+        repeat_feats = np.repeat(
+            np.expand_dims(input_feats, axis=0), feat_repeat_times, axis=0)
+        residue_feats = np.hstack([
+            input_feats[:, 0:residue_dim],
+            np.zeros((num_nodes, feat_dim - residue_dim))
+        ])
+        residue_feats = np.expand_dims(residue_feats, axis=0)
+        repeat_feats = np.concatenate([repeat_feats, residue_feats], axis=0)
+        embedded_feats = repeat_feats / embed_wave
+        embedded_feats[:, 0::2] = np.sin(embedded_feats[:, 0::2])
+        embedded_feats[:, 1::2] = np.cos(embedded_feats[:, 1::2])
+        embedded_feats = np.transpose(embedded_feats, (1, 0, 2)).reshape(
+            (num_nodes, -1))[:, 0:out_feat_len]
+    else:
+        embed_wave = np.array([
+            np.power(1000, 2.0 * (j // 2) / feat_repeat_times)
+            for j in range(feat_repeat_times)
+        ]).reshape((feat_repeat_times, 1, 1))
+        repeat_feats = np.repeat(
+            np.expand_dims(input_feats, axis=0), feat_repeat_times, axis=0)
+        embedded_feats = repeat_feats / embed_wave
+        embedded_feats[:, 0::2] = np.sin(embedded_feats[:, 0::2])
+        embedded_feats[:, 1::2] = np.cos(embedded_feats[:, 1::2])
+        embedded_feats = np.transpose(embedded_feats, (1, 0, 2)).reshape(
+            (num_nodes, -1)).astype(np.float32)
+
+    return embedded_feats
+
+
+@MODELS.register_module()
+class DRRGHead(BaseTextDetHead):
+    """The class for DRRG head: `Deep Relational Reasoning Graph Network for
+    Arbitrary Shape Text Detection <https://arxiv.org/abs/2003.07493>`_.
+
+    Args:
+        in_channels (int): The number of input channels.
+        k_at_hops (tuple(int)): The number of i-hop neighbors, i = 1, 2.
+            Defaults to (8, 4).
+        num_adjacent_linkages (int): The number of linkages when constructing
+            adjacent matrix. Defaults to 3.
+        node_geo_feat_len (int): The length of embedded geometric feature
+            vector of a component. Defaults to 120.
+        pooling_scale (float): The spatial scale of rotated RoI-Align. Defaults
+            to 1.0.
+        pooling_output_size (tuple(int)): The output size of RRoI-Aligning.
+            Defaults to (4, 3).
+        nms_thr (float): The locality-aware NMS threshold of text components.
+            Defaults to 0.3.
+        min_width (float): The minimum width of text components. Defaults to
+            8.0.
+        max_width (float): The maximum width of text components. Defaults to
+            24.0.
+        comp_shrink_ratio (float): The shrink ratio of text components.
+            Defaults to 1.03.
+        comp_ratio (float): The reciprocal of aspect ratio of text components.
+            Defaults to 0.4.
+        comp_score_thr (float): The score threshold of text components.
+            Defaults to 0.3.
+        text_region_thr (float): The threshold for text region probability map.
+            Defaults to 0.2.
+        center_region_thr (float): The threshold for text center region
+            probability map. Defaults to 0.2.
+        center_region_area_thr (int): The threshold for filtering small-sized
+            text center region. Defaults to 50.
+        local_graph_thr (float): The threshold to filter identical local
+            graphs. Defaults to 0.7.
+        module_loss (dict): The config of loss that DRRGHead uses. Defaults to
+            ``dict(type='DRRGModuleLoss')``.
+        postprocessor (dict): Config of postprocessor for Drrg. Defaults to
+            ``dict(type='DrrgPostProcessor', link_thr=0.85)``.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to ``dict(type='Normal',
+            override=dict(name='out_conv'), mean=0, std=0.01)``.
+    """
+
+    def __init__(
+        self,
+        in_channels: int,
+        k_at_hops: Tuple[int, int] = (8, 4),
+        num_adjacent_linkages: int = 3,
+        node_geo_feat_len: int = 120,
+        pooling_scale: float = 1.0,
+        pooling_output_size: Tuple[int, int] = (4, 3),
+        nms_thr: float = 0.3,
+        min_width: float = 8.0,
+        max_width: float = 24.0,
+        comp_shrink_ratio: float = 1.03,
+        comp_ratio: float = 0.4,
+        comp_score_thr: float = 0.3,
+        text_region_thr: float = 0.2,
+        center_region_thr: float = 0.2,
+        center_region_area_thr: int = 50,
+        local_graph_thr: float = 0.7,
+        module_loss: Dict = dict(type='DRRGModuleLoss'),
+        postprocessor: Dict = dict(type='DRRGPostprocessor', link_thr=0.85),
+        init_cfg: Optional[Union[Dict, List[Dict]]] = dict(
+            type='Normal', override=dict(name='out_conv'), mean=0, std=0.01)
+    ) -> None:
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
+
+        assert isinstance(in_channels, int)
+        assert isinstance(k_at_hops, tuple)
+        assert isinstance(num_adjacent_linkages, int)
+        assert isinstance(node_geo_feat_len, int)
+        assert isinstance(pooling_scale, float)
+        assert isinstance(pooling_output_size, tuple)
+        assert isinstance(comp_shrink_ratio, float)
+        assert isinstance(nms_thr, float)
+        assert isinstance(min_width, float)
+        assert isinstance(max_width, float)
+        assert isinstance(comp_ratio, float)
+        assert isinstance(comp_score_thr, float)
+        assert isinstance(text_region_thr, float)
+        assert isinstance(center_region_thr, float)
+        assert isinstance(center_region_area_thr, int)
+        assert isinstance(local_graph_thr, float)
+
+        self.in_channels = in_channels
+        self.out_channels = 6
+        self.downsample_ratio = 1.0
+        self.k_at_hops = k_at_hops
+        self.num_adjacent_linkages = num_adjacent_linkages
+        self.node_geo_feat_len = node_geo_feat_len
+        self.pooling_scale = pooling_scale
+        self.pooling_output_size = pooling_output_size
+        self.comp_shrink_ratio = comp_shrink_ratio
+        self.nms_thr = nms_thr
+        self.min_width = min_width
+        self.max_width = max_width
+        self.comp_ratio = comp_ratio
+        self.comp_score_thr = comp_score_thr
+        self.text_region_thr = text_region_thr
+        self.center_region_thr = center_region_thr
+        self.center_region_area_thr = center_region_area_thr
+        self.local_graph_thr = local_graph_thr
+
+        self.out_conv = nn.Conv2d(
+            in_channels=self.in_channels,
+            out_channels=self.out_channels,
+            kernel_size=1,
+            stride=1,
+            padding=0)
+
+        self.graph_train = LocalGraphs(self.k_at_hops,
+                                       self.num_adjacent_linkages,
+                                       self.node_geo_feat_len,
+                                       self.pooling_scale,
+                                       self.pooling_output_size,
+                                       self.local_graph_thr)
+
+        self.graph_test = ProposalLocalGraphs(
+            self.k_at_hops, self.num_adjacent_linkages, self.node_geo_feat_len,
+            self.pooling_scale, self.pooling_output_size, self.nms_thr,
+            self.min_width, self.max_width, self.comp_shrink_ratio,
+            self.comp_ratio, self.comp_score_thr, self.text_region_thr,
+            self.center_region_thr, self.center_region_area_thr)
+
+        pool_w, pool_h = self.pooling_output_size
+        node_feat_len = (pool_w * pool_h) * (
+            self.in_channels + self.out_channels) + self.node_geo_feat_len
+        self.gcn = GCN(node_feat_len)
+
+    def loss(self, inputs: torch.Tensor, data_samples: List[TextDetDataSample]
+             ) -> Tuple[Tensor, Tensor, Tensor]:
+        """Loss function.
+
+        Args:
+            inputs (Tensor): Shape of :math:`(N, C, H, W)`.
+            data_samples (List[TextDetDataSample]): List of data samples.
+
+        Returns:
+            tuple(pred_maps, gcn_pred, gt_labels):
+
+            - pred_maps (Tensor): Prediction map with shape
+                :math:`(N, 6, H, W)`.
+            - gcn_pred (Tensor): Prediction from GCN module, with
+                shape :math:`(N, 2)`.
+            - gt_labels (Tensor): Ground-truth label of shape
+                :math:`(m, n)` where :math:`m * n = N`.
+        """
+        targets = self.module_loss.get_targets(data_samples)
+        gt_comp_attribs = targets[-1]
+
+        pred_maps = self.out_conv(inputs)
+        feat_maps = torch.cat([inputs, pred_maps], dim=1)
+        node_feats, adjacent_matrices, knn_inds, gt_labels = self.graph_train(
+            feat_maps, np.stack(gt_comp_attribs))
+
+        gcn_pred = self.gcn(node_feats, adjacent_matrices, knn_inds)
+
+        return self.module_loss((pred_maps, gcn_pred, gt_labels), data_samples)
+
+    def forward(
+        self,
+        inputs: Tensor,
+        data_samples: Optional[List[TextDetDataSample]] = None
+    ) -> Tuple[Tensor, Tensor, Tensor]:
+        r"""Run DRRG head in prediction mode, and return the raw tensors only.
+        Args:
+            inputs (Tensor): Shape of :math:`(1, C, H, W)`.
+            data_samples (list[TextDetDataSample], optional): A list of data
+                samples. Defaults to None.
+
+        Returns:
+            tuple: Returns (edge, score, text_comps).
+
+            - edge (ndarray): The edge array of shape :math:`(N_{edges}, 2)`
+              where each row is a pair of text component indices
+              that makes up an edge in graph.
+            - score (ndarray): The score array of shape :math:`(N_{edges},)`,
+              corresponding to the edge above.
+            - text_comps (ndarray): The text components of shape
+              :math:`(M, 9)` where each row corresponds to one box and
+              its score: (x1, y1, x2, y2, x3, y3, x4, y4, score).
+        """
+        pred_maps = self.out_conv(inputs)
+        inputs = torch.cat([inputs, pred_maps], dim=1)
+
+        none_flag, graph_data = self.graph_test(pred_maps, inputs)
+
+        (local_graphs_node_feat, adjacent_matrices, pivots_knn_inds,
+         pivot_local_graphs, text_comps) = graph_data
+
+        if none_flag:
+            return None, None, None
+
+        gcn_pred = self.gcn(local_graphs_node_feat, adjacent_matrices,
+                            pivots_knn_inds)
+        pred_labels = F.softmax(gcn_pred, dim=1)
+
+        edges = []
+        scores = []
+        pivot_local_graphs = pivot_local_graphs.long().squeeze().cpu().numpy()
+
+        for pivot_ind, pivot_local_graph in enumerate(pivot_local_graphs):
+            pivot = pivot_local_graph[0]
+            for k_ind, neighbor_ind in enumerate(pivots_knn_inds[pivot_ind]):
+                neighbor = pivot_local_graph[neighbor_ind.item()]
+                edges.append([pivot, neighbor])
+                scores.append(
+                    pred_labels[pivot_ind * pivots_knn_inds.shape[1] + k_ind,
+                                1].item())
+
+        edges = np.asarray(edges)
+        scores = np.asarray(scores)
+
+        return edges, scores, text_comps
+
+
+class LocalGraphs:
+    """Generate local graphs for GCN to classify the neighbors of a pivot for
+    `DRRG: Deep Relational Reasoning Graph Network for Arbitrary Shape Text
+    Detection <[https://arxiv.org/abs/2003.07493]>`_.
+
+    This code was partially adapted from
+    https://github.com/GXYM/DRRG licensed under the MIT license.
+
+    Args:
+        k_at_hops (tuple(int)): The number of i-hop neighbors, i = 1, 2.
+        num_adjacent_linkages (int): The number of linkages when constructing
+            adjacent matrix.
+        node_geo_feat_len (int): The length of embedded geometric feature
+            vector of a text component.
+        pooling_scale (float): The spatial scale of rotated RoI-Align.
+        pooling_output_size (tuple(int)): The output size of rotated RoI-Align.
+        local_graph_thr(float): The threshold for filtering out identical local
+            graphs.
+    """
+
+    def __init__(self, k_at_hops: Tuple[int, int], num_adjacent_linkages: int,
+                 node_geo_feat_len: int, pooling_scale: float,
+                 pooling_output_size: Sequence[int],
+                 local_graph_thr: float) -> None:
+
+        assert len(k_at_hops) == 2
+        assert all(isinstance(n, int) for n in k_at_hops)
+        assert isinstance(num_adjacent_linkages, int)
+        assert isinstance(node_geo_feat_len, int)
+        assert isinstance(pooling_scale, float)
+        assert all(isinstance(n, int) for n in pooling_output_size)
+        assert isinstance(local_graph_thr, float)
+
+        self.k_at_hops = k_at_hops
+        self.num_adjacent_linkages = num_adjacent_linkages
+        self.node_geo_feat_dim = node_geo_feat_len
+        self.pooling = RoIAlignRotated(pooling_output_size, pooling_scale)
+        self.local_graph_thr = local_graph_thr
+
+    def generate_local_graphs(self, sorted_dist_inds: ndarray,
+                              gt_comp_labels: ndarray
+                              ) -> Tuple[List[List[int]], List[List[int]]]:
+        """Generate local graphs for GCN to predict which instance a text
+        component belongs to.
+
+        Args:
+            sorted_dist_inds (ndarray): The complete graph node indices, which
+                is sorted according to the Euclidean distance.
+            gt_comp_labels(ndarray): The ground truth labels define the
+                instance to which the text components (nodes in graphs) belong.
+
+        Returns:
+            Tuple(pivot_local_graphs, pivot_knns):
+
+            - pivot_local_graphs (list[list[int]]): The list of local graph
+              neighbor indices of pivots.
+            - pivot_knns (list[list[int]]): The list of k-nearest neighbor
+              indices of pivots.
+        """
+
+        assert sorted_dist_inds.ndim == 2
+        assert (sorted_dist_inds.shape[0] == sorted_dist_inds.shape[1] ==
+                gt_comp_labels.shape[0])
+
+        knn_graph = sorted_dist_inds[:, 1:self.k_at_hops[0] + 1]
+        pivot_local_graphs = []
+        pivot_knns = []
+        for pivot_ind, knn in enumerate(knn_graph):
+
+            local_graph_neighbors = set(knn)
+
+            for neighbor_ind in knn:
+                local_graph_neighbors.update(
+                    set(sorted_dist_inds[neighbor_ind,
+                                         1:self.k_at_hops[1] + 1]))
+
+            local_graph_neighbors.discard(pivot_ind)
+            pivot_local_graph = list(local_graph_neighbors)
+            pivot_local_graph.insert(0, pivot_ind)
+            pivot_knn = [pivot_ind] + list(knn)
+
+            if pivot_ind < 1:
+                pivot_local_graphs.append(pivot_local_graph)
+                pivot_knns.append(pivot_knn)
+            else:
+                add_flag = True
+                for graph_ind, added_knn in enumerate(pivot_knns):
+                    added_pivot_ind = added_knn[0]
+                    added_local_graph = pivot_local_graphs[graph_ind]
+
+                    union = len(
+                        set(pivot_local_graph[1:]).union(
+                            set(added_local_graph[1:])))
+                    intersect = len(
+                        set(pivot_local_graph[1:]).intersection(
+                            set(added_local_graph[1:])))
+                    local_graph_iou = intersect / (union + 1e-8)
+
+                    if (local_graph_iou > self.local_graph_thr
+                            and pivot_ind in added_knn
+                            and gt_comp_labels[added_pivot_ind]
+                            == gt_comp_labels[pivot_ind]
+                            and gt_comp_labels[pivot_ind] != 0):
+                        add_flag = False
+                        break
+                if add_flag:
+                    pivot_local_graphs.append(pivot_local_graph)
+                    pivot_knns.append(pivot_knn)
+
+        return pivot_local_graphs, pivot_knns
+
+    def generate_gcn_input(
+        self, node_feat_batch: List[Tensor], node_label_batch: List[ndarray],
+        local_graph_batch: List[List[List[int]]],
+        knn_batch: List[List[List[int]]], sorted_dist_ind_batch: List[ndarray]
+    ) -> Tuple[Tensor, Tensor, Tensor, Tensor]:
+        """Generate graph convolution network input data.
+
+        Args:
+            node_feat_batch (List[Tensor]): The batched graph node features.
+            node_label_batch (List[ndarray]): The batched text component
+                labels.
+            local_graph_batch (List[List[List[int]]]): The local graph node
+                indices of image batch.
+            knn_batch (List[List[List[int]]]): The knn graph node indices of
+                image batch.
+            sorted_dist_ind_batch (List[ndarray]): The node indices sorted
+                according to the Euclidean distance.
+
+        Returns:
+            Tuple(local_graphs_node_feat, adjacent_matrices, pivots_knn_inds,
+            gt_linkage):
+
+            - local_graphs_node_feat (Tensor): The node features of graph.
+            - adjacent_matrices (Tensor): The adjacent matrices of local
+              graphs.
+            - pivots_knn_inds (Tensor): The k-nearest neighbor indices in
+                local graph.
+            - gt_linkage (Tensor): The surpervision signal of GCN for linkage
+                prediction.
+        """
+        assert isinstance(node_feat_batch, list)
+        assert isinstance(node_label_batch, list)
+        assert isinstance(local_graph_batch, list)
+        assert isinstance(knn_batch, list)
+        assert isinstance(sorted_dist_ind_batch, list)
+
+        num_max_nodes = max(
+            len(pivot_local_graph) for pivot_local_graphs in local_graph_batch
+            for pivot_local_graph in pivot_local_graphs)
+
+        local_graphs_node_feat = []
+        adjacent_matrices = []
+        pivots_knn_inds = []
+        pivots_gt_linkage = []
+
+        for batch_ind, sorted_dist_inds in enumerate(sorted_dist_ind_batch):
+            node_feats = node_feat_batch[batch_ind]
+            pivot_local_graphs = local_graph_batch[batch_ind]
+            pivot_knns = knn_batch[batch_ind]
+            node_labels = node_label_batch[batch_ind]
+            device = node_feats.device
+
+            for graph_ind, pivot_knn in enumerate(pivot_knns):
+                pivot_local_graph = pivot_local_graphs[graph_ind]
+                num_nodes = len(pivot_local_graph)
+                pivot_ind = pivot_local_graph[0]
+                node2ind_map = {j: i for i, j in enumerate(pivot_local_graph)}
+
+                knn_inds = torch.tensor(
+                    [node2ind_map[i] for i in pivot_knn[1:]])
+                pivot_feats = node_feats[pivot_ind]
+                normalized_feats = node_feats[pivot_local_graph] - pivot_feats
+
+                adjacent_matrix = np.zeros((num_nodes, num_nodes),
+                                           dtype=np.float32)
+                for node in pivot_local_graph:
+                    neighbors = sorted_dist_inds[node,
+                                                 1:self.num_adjacent_linkages +
+                                                 1]
+                    for neighbor in neighbors:
+                        if neighbor in pivot_local_graph:
+
+                            adjacent_matrix[node2ind_map[node],
+                                            node2ind_map[neighbor]] = 1
+                            adjacent_matrix[node2ind_map[neighbor],
+                                            node2ind_map[node]] = 1
+
+                adjacent_matrix = normalize_adjacent_matrix(adjacent_matrix)
+                pad_adjacent_matrix = torch.zeros(
+                    (num_max_nodes, num_max_nodes),
+                    dtype=torch.float,
+                    device=device)
+                pad_adjacent_matrix[:num_nodes, :num_nodes] = torch.from_numpy(
+                    adjacent_matrix)
+
+                pad_normalized_feats = torch.cat([
+                    normalized_feats,
+                    torch.zeros(
+                        (num_max_nodes - num_nodes, normalized_feats.shape[1]),
+                        dtype=torch.float,
+                        device=device)
+                ],
+                                                 dim=0)
+
+                local_graph_labels = node_labels[pivot_local_graph]
+                knn_labels = local_graph_labels[knn_inds]
+                link_labels = ((node_labels[pivot_ind] == knn_labels) &
+                               (node_labels[pivot_ind] > 0)).astype(np.int64)
+                link_labels = torch.from_numpy(link_labels)
+
+                local_graphs_node_feat.append(pad_normalized_feats)
+                adjacent_matrices.append(pad_adjacent_matrix)
+                pivots_knn_inds.append(knn_inds)
+                pivots_gt_linkage.append(link_labels)
+
+        local_graphs_node_feat = torch.stack(local_graphs_node_feat, 0)
+        adjacent_matrices = torch.stack(adjacent_matrices, 0)
+        pivots_knn_inds = torch.stack(pivots_knn_inds, 0)
+        pivots_gt_linkage = torch.stack(pivots_gt_linkage, 0)
+
+        return (local_graphs_node_feat, adjacent_matrices, pivots_knn_inds,
+                pivots_gt_linkage)
+
+    def __call__(self, feat_maps: Tensor, comp_attribs: ndarray
+                 ) -> Tuple[Tensor, Tensor, Tensor, Tensor]:
+        """Generate local graphs as GCN input.
+
+        Args:
+            feat_maps (Tensor): The feature maps to extract the content
+                features of text components.
+            comp_attribs (ndarray): The text component attributes.
+
+        Returns:
+            Tuple(local_graphs_node_feat, adjacent_matrices, pivots_knn_inds,
+            gt_linkage):
+
+            - local_graphs_node_feat (Tensor): The node features of graph.
+            - adjacent_matrices (Tensor): The adjacent matrices of local
+              graphs.
+            - pivots_knn_inds (Tensor): The k-nearest neighbor indices in local
+              graph.
+            - gt_linkage (Tensor): The surpervision signal of GCN for linkage
+              prediction.
+        """
+
+        assert isinstance(feat_maps, Tensor)
+        assert comp_attribs.ndim == 3
+        assert comp_attribs.shape[2] == 8
+
+        sorted_dist_inds_batch = []
+        local_graph_batch = []
+        knn_batch = []
+        node_feat_batch = []
+        node_label_batch = []
+        device = feat_maps.device
+
+        for batch_ind in range(comp_attribs.shape[0]):
+            num_comps = int(comp_attribs[batch_ind, 0, 0])
+            comp_geo_attribs = comp_attribs[batch_ind, :num_comps, 1:7]
+            node_labels = comp_attribs[batch_ind, :num_comps,
+                                       7].astype(np.int32)
+
+            comp_centers = comp_geo_attribs[:, 0:2]
+            distance_matrix = euclidean_distance_matrix(
+                comp_centers, comp_centers)
+
+            batch_id = np.zeros(
+                (comp_geo_attribs.shape[0], 1), dtype=np.float32) * batch_ind
+            comp_geo_attribs[:, -2] = np.clip(comp_geo_attribs[:, -2], -1, 1)
+            angle = np.arccos(comp_geo_attribs[:, -2]) * np.sign(
+                comp_geo_attribs[:, -1])
+            angle = angle.reshape((-1, 1))
+            rotated_rois = np.hstack(
+                [batch_id, comp_geo_attribs[:, :-2], angle])
+            rois = torch.from_numpy(rotated_rois).to(device)
+            content_feats = self.pooling(feat_maps[batch_ind].unsqueeze(0),
+                                         rois)
+
+            content_feats = content_feats.view(content_feats.shape[0],
+                                               -1).to(feat_maps.device)
+            geo_feats = feature_embedding(comp_geo_attribs,
+                                          self.node_geo_feat_dim)
+            geo_feats = torch.from_numpy(geo_feats).to(device)
+            node_feats = torch.cat([content_feats, geo_feats], dim=-1)
+
+            sorted_dist_inds = np.argsort(distance_matrix, axis=1)
+            pivot_local_graphs, pivot_knns = self.generate_local_graphs(
+                sorted_dist_inds, node_labels)
+
+            node_feat_batch.append(node_feats)
+            node_label_batch.append(node_labels)
+            local_graph_batch.append(pivot_local_graphs)
+            knn_batch.append(pivot_knns)
+            sorted_dist_inds_batch.append(sorted_dist_inds)
+
+        (node_feats, adjacent_matrices, knn_inds, gt_linkage) = \
+            self.generate_gcn_input(node_feat_batch,
+                                    node_label_batch,
+                                    local_graph_batch,
+                                    knn_batch,
+                                    sorted_dist_inds_batch)
+
+        return node_feats, adjacent_matrices, knn_inds, gt_linkage
+
+
+class ProposalLocalGraphs:
+    """Propose text components and generate local graphs for GCN to classify
+    the k-nearest neighbors of a pivot in `DRRG: Deep Relational Reasoning
+    Graph Network for Arbitrary Shape Text Detection.
+
+    <https://arxiv.org/abs/2003.07493>`_.
+
+    This code was partially adapted from https://github.com/GXYM/DRRG licensed
+    under the MIT license.
+
+    Args:
+        k_at_hops (tuple(int)): The number of i-hop neighbors, i = 1, 2.
+        num_adjacent_linkages (int): The number of linkages when constructing
+            adjacent matrix.
+        node_geo_feat_len (int): The length of embedded geometric feature
+            vector of a text component.
+        pooling_scale (float): The spatial scale of rotated RoI-Align.
+        pooling_output_size (tuple(int)): The output size of rotated RoI-Align.
+        nms_thr (float): The locality-aware NMS threshold for text components.
+        min_width (float): The minimum width of text components.
+        max_width (float): The maximum width of text components.
+        comp_shrink_ratio (float): The shrink ratio of text components.
+        comp_w_h_ratio (float): The width to height ratio of text components.
+        comp_score_thr (float): The score threshold of text component.
+        text_region_thr (float): The threshold for text region probability map.
+        center_region_thr (float): The threshold for text center region
+            probability map.
+        center_region_area_thr (int): The threshold for filtering small-sized
+            text center region.
+    """
+
+    def __init__(self, k_at_hops: Tuple[int, int], num_adjacent_linkages: int,
+                 node_geo_feat_len: int, pooling_scale: float,
+                 pooling_output_size: Sequence[int], nms_thr: float,
+                 min_width: float, max_width: float, comp_shrink_ratio: float,
+                 comp_w_h_ratio: float, comp_score_thr: float,
+                 text_region_thr: float, center_region_thr: float,
+                 center_region_area_thr: int) -> None:
+
+        assert len(k_at_hops) == 2
+        assert isinstance(k_at_hops, tuple)
+        assert isinstance(num_adjacent_linkages, int)
+        assert isinstance(node_geo_feat_len, int)
+        assert isinstance(pooling_scale, float)
+        assert isinstance(pooling_output_size, tuple)
+        assert isinstance(nms_thr, float)
+        assert isinstance(min_width, float)
+        assert isinstance(max_width, float)
+        assert isinstance(comp_shrink_ratio, float)
+        assert isinstance(comp_w_h_ratio, float)
+        assert isinstance(comp_score_thr, float)
+        assert isinstance(text_region_thr, float)
+        assert isinstance(center_region_thr, float)
+        assert isinstance(center_region_area_thr, int)
+
+        self.k_at_hops = k_at_hops
+        self.active_connection = num_adjacent_linkages
+        self.local_graph_depth = len(self.k_at_hops)
+        self.node_geo_feat_dim = node_geo_feat_len
+        self.pooling = RoIAlignRotated(pooling_output_size, pooling_scale)
+        self.nms_thr = nms_thr
+        self.min_width = min_width
+        self.max_width = max_width
+        self.comp_shrink_ratio = comp_shrink_ratio
+        self.comp_w_h_ratio = comp_w_h_ratio
+        self.comp_score_thr = comp_score_thr
+        self.text_region_thr = text_region_thr
+        self.center_region_thr = center_region_thr
+        self.center_region_area_thr = center_region_area_thr
+
+    def propose_comps(self, score_map: ndarray, top_height_map: ndarray,
+                      bot_height_map: ndarray, sin_map: ndarray,
+                      cos_map: ndarray, comp_score_thr: float,
+                      min_width: float, max_width: float,
+                      comp_shrink_ratio: float,
+                      comp_w_h_ratio: float) -> ndarray:
+        """Propose text components.
+
+        Args:
+            score_map (ndarray): The score map for NMS.
+            top_height_map (ndarray): The predicted text height map from each
+                pixel in text center region to top sideline.
+            bot_height_map (ndarray): The predicted text height map from each
+                pixel in text center region to bottom sideline.
+            sin_map (ndarray): The predicted sin(theta) map.
+            cos_map (ndarray): The predicted cos(theta) map.
+            comp_score_thr (float): The score threshold of text component.
+            min_width (float): The minimum width of text components.
+            max_width (float): The maximum width of text components.
+            comp_shrink_ratio (float): The shrink ratio of text components.
+            comp_w_h_ratio (float): The width to height ratio of text
+                components.
+
+        Returns:
+            ndarray: The text components.
+        """
+
+        comp_centers = np.argwhere(score_map > comp_score_thr)
+        comp_centers = comp_centers[np.argsort(comp_centers[:, 0])]
+        y = comp_centers[:, 0]
+        x = comp_centers[:, 1]
+
+        top_height = top_height_map[y, x].reshape((-1, 1)) * comp_shrink_ratio
+        bot_height = bot_height_map[y, x].reshape((-1, 1)) * comp_shrink_ratio
+        sin = sin_map[y, x].reshape((-1, 1))
+        cos = cos_map[y, x].reshape((-1, 1))
+
+        top_mid_pts = comp_centers + np.hstack(
+            [top_height * sin, top_height * cos])
+        bot_mid_pts = comp_centers - np.hstack(
+            [bot_height * sin, bot_height * cos])
+
+        width = (top_height + bot_height) * comp_w_h_ratio
+        width = np.clip(width, min_width, max_width)
+        r = width / 2
+
+        tl = top_mid_pts[:, ::-1] - np.hstack([-r * sin, r * cos])
+        tr = top_mid_pts[:, ::-1] + np.hstack([-r * sin, r * cos])
+        br = bot_mid_pts[:, ::-1] + np.hstack([-r * sin, r * cos])
+        bl = bot_mid_pts[:, ::-1] - np.hstack([-r * sin, r * cos])
+        text_comps = np.hstack([tl, tr, br, bl]).astype(np.float32)
+
+        score = score_map[y, x].reshape((-1, 1))
+        text_comps = np.hstack([text_comps, score])
+
+        return text_comps
+
+    def propose_comps_and_attribs(self, text_region_map: ndarray,
+                                  center_region_map: ndarray,
+                                  top_height_map: ndarray,
+                                  bot_height_map: ndarray, sin_map: ndarray,
+                                  cos_map: ndarray) -> Tuple[ndarray, ndarray]:
+        """Generate text components and attributes.
+
+        Args:
+            text_region_map (ndarray): The predicted text region probability
+                map.
+            center_region_map (ndarray): The predicted text center region
+                probability map.
+            top_height_map (ndarray): The predicted text height map from each
+                pixel in text center region to top sideline.
+            bot_height_map (ndarray): The predicted text height map from each
+                pixel in text center region to bottom sideline.
+            sin_map (ndarray): The predicted sin(theta) map.
+            cos_map (ndarray): The predicted cos(theta) map.
+
+        Returns:
+            tuple(ndarray, ndarray):
+
+            - comp_attribs (ndarray): The text component attributes.
+            - text_comps (ndarray): The text components.
+        """
+
+        assert (text_region_map.shape == center_region_map.shape ==
+                top_height_map.shape == bot_height_map.shape == sin_map.shape
+                == cos_map.shape)
+        text_mask = text_region_map > self.text_region_thr
+        center_region_mask = (center_region_map >
+                              self.center_region_thr) * text_mask
+
+        scale = np.sqrt(1.0 / (sin_map**2 + cos_map**2 + 1e-8))
+        sin_map, cos_map = sin_map * scale, cos_map * scale
+
+        center_region_mask = fill_hole(center_region_mask)
+        center_region_contours, _ = cv2.findContours(
+            center_region_mask.astype(np.uint8), cv2.RETR_TREE,
+            cv2.CHAIN_APPROX_SIMPLE)
+
+        mask_sz = center_region_map.shape
+        comp_list = []
+        for contour in center_region_contours:
+            current_center_mask = np.zeros(mask_sz)
+            cv2.drawContours(current_center_mask, [contour], -1, 1, -1)
+            if current_center_mask.sum() <= self.center_region_area_thr:
+                continue
+            score_map = text_region_map * current_center_mask
+
+            text_comps = self.propose_comps(score_map, top_height_map,
+                                            bot_height_map, sin_map, cos_map,
+                                            self.comp_score_thr,
+                                            self.min_width, self.max_width,
+                                            self.comp_shrink_ratio,
+                                            self.comp_w_h_ratio)
+
+            if la_nms is None:
+                raise ImportError('lanms-neo is not installed, '
+                                  'please run "pip install lanms-neo==1.0.2".')
+            text_comps = la_nms(text_comps, self.nms_thr)
+            text_comp_mask = np.zeros(mask_sz)
+            text_comp_boxes = text_comps[:, :8].reshape(
+                (-1, 4, 2)).astype(np.int32)
+
+            cv2.drawContours(text_comp_mask, text_comp_boxes, -1, 1, -1)
+            if (text_comp_mask * text_mask).sum() < text_comp_mask.sum() * 0.5:
+                continue
+            if text_comps.shape[-1] > 0:
+                comp_list.append(text_comps)
+
+        if len(comp_list) <= 0:
+            return None, None
+
+        text_comps = np.vstack(comp_list)
+        text_comp_boxes = text_comps[:, :8].reshape((-1, 4, 2))
+        centers = np.mean(text_comp_boxes, axis=1).astype(np.int32)
+        x = centers[:, 0]
+        y = centers[:, 1]
+
+        scores = []
+        for text_comp_box in text_comp_boxes:
+            text_comp_box[:, 0] = np.clip(text_comp_box[:, 0], 0,
+                                          mask_sz[1] - 1)
+            text_comp_box[:, 1] = np.clip(text_comp_box[:, 1], 0,
+                                          mask_sz[0] - 1)
+            min_coord = np.min(text_comp_box, axis=0).astype(np.int32)
+            max_coord = np.max(text_comp_box, axis=0).astype(np.int32)
+            text_comp_box = text_comp_box - min_coord
+            box_sz = (max_coord - min_coord + 1)
+            temp_comp_mask = np.zeros((box_sz[1], box_sz[0]), dtype=np.uint8)
+            cv2.fillPoly(temp_comp_mask, [text_comp_box.astype(np.int32)], 1)
+            temp_region_patch = text_region_map[min_coord[1]:(max_coord[1] +
+                                                              1),
+                                                min_coord[0]:(max_coord[0] +
+                                                              1)]
+            score = cv2.mean(temp_region_patch, temp_comp_mask)[0]
+            scores.append(score)
+        scores = np.array(scores).reshape((-1, 1))
+        text_comps = np.hstack([text_comps[:, :-1], scores])
+
+        h = top_height_map[y, x].reshape(
+            (-1, 1)) + bot_height_map[y, x].reshape((-1, 1))
+        w = np.clip(h * self.comp_w_h_ratio, self.min_width, self.max_width)
+        sin = sin_map[y, x].reshape((-1, 1))
+        cos = cos_map[y, x].reshape((-1, 1))
+
+        x = x.reshape((-1, 1))
+        y = y.reshape((-1, 1))
+        comp_attribs = np.hstack([x, y, h, w, cos, sin])
+
+        return comp_attribs, text_comps
+
+    def generate_local_graphs(self, sorted_dist_inds: ndarray,
+                              node_feats: Tensor
+                              ) -> Tuple[Tensor, Tensor, Tensor, Tensor]:
+        """Generate local graphs and graph convolution network input data.
+
+        Args:
+            sorted_dist_inds (ndarray): The node indices sorted according to
+                the Euclidean distance.
+            node_feats (tensor): The features of nodes in graph.
+
+        Returns:
+            Tuple(local_graphs_node_feat, adjacent_matrices, pivots_knn_inds,
+            pivots_local_graphs):
+
+            - local_graphs_node_feats (tensor): The features of nodes in local
+              graphs.
+            - adjacent_matrices (tensor): The adjacent matrices.
+            - pivots_knn_inds (tensor): The k-nearest neighbor indices in
+              local graphs.
+            - pivots_local_graphs (tensor): The indices of nodes in local
+              graphs.
+        """
+
+        assert sorted_dist_inds.ndim == 2
+        assert (sorted_dist_inds.shape[0] == sorted_dist_inds.shape[1] ==
+                node_feats.shape[0])
+
+        knn_graph = sorted_dist_inds[:, 1:self.k_at_hops[0] + 1]
+        pivot_local_graphs = []
+        pivot_knns = []
+        device = node_feats.device
+
+        for pivot_ind, knn in enumerate(knn_graph):
+
+            local_graph_neighbors = set(knn)
+
+            for neighbor_ind in knn:
+                local_graph_neighbors.update(
+                    set(sorted_dist_inds[neighbor_ind,
+                                         1:self.k_at_hops[1] + 1]))
+
+            local_graph_neighbors.discard(pivot_ind)
+            pivot_local_graph = list(local_graph_neighbors)
+            pivot_local_graph.insert(0, pivot_ind)
+            pivot_knn = [pivot_ind] + list(knn)
+
+            pivot_local_graphs.append(pivot_local_graph)
+            pivot_knns.append(pivot_knn)
+
+        num_max_nodes = max(
+            len(pivot_local_graph) for pivot_local_graph in pivot_local_graphs)
+
+        local_graphs_node_feat = []
+        adjacent_matrices = []
+        pivots_knn_inds = []
+        pivots_local_graphs = []
+
+        for graph_ind, pivot_knn in enumerate(pivot_knns):
+            pivot_local_graph = pivot_local_graphs[graph_ind]
+            num_nodes = len(pivot_local_graph)
+            pivot_ind = pivot_local_graph[0]
+            node2ind_map = {j: i for i, j in enumerate(pivot_local_graph)}
+
+            knn_inds = torch.tensor([node2ind_map[i]
+                                     for i in pivot_knn[1:]]).long().to(device)
+            pivot_feats = node_feats[pivot_ind]
+            normalized_feats = node_feats[pivot_local_graph] - pivot_feats
+
+            adjacent_matrix = np.zeros((num_nodes, num_nodes))
+            for node in pivot_local_graph:
+                neighbors = sorted_dist_inds[node,
+                                             1:self.active_connection + 1]
+                for neighbor in neighbors:
+                    if neighbor in pivot_local_graph:
+                        adjacent_matrix[node2ind_map[node],
+                                        node2ind_map[neighbor]] = 1
+                        adjacent_matrix[node2ind_map[neighbor],
+                                        node2ind_map[node]] = 1
+
+            adjacent_matrix = normalize_adjacent_matrix(adjacent_matrix)
+            pad_adjacent_matrix = torch.zeros((num_max_nodes, num_max_nodes),
+                                              dtype=torch.float,
+                                              device=device)
+            pad_adjacent_matrix[:num_nodes, :num_nodes] = torch.from_numpy(
+                adjacent_matrix)
+
+            pad_normalized_feats = torch.cat([
+                normalized_feats,
+                torch.zeros(
+                    (num_max_nodes - num_nodes, normalized_feats.shape[1]),
+                    dtype=torch.float,
+                    device=device)
+            ],
+                                             dim=0)
+
+            local_graph_nodes = torch.tensor(pivot_local_graph)
+            local_graph_nodes = torch.cat([
+                local_graph_nodes,
+                torch.zeros(num_max_nodes - num_nodes, dtype=torch.long)
+            ],
+                                          dim=-1)
+
+            local_graphs_node_feat.append(pad_normalized_feats)
+            adjacent_matrices.append(pad_adjacent_matrix)
+            pivots_knn_inds.append(knn_inds)
+            pivots_local_graphs.append(local_graph_nodes)
+
+        local_graphs_node_feat = torch.stack(local_graphs_node_feat, 0)
+        adjacent_matrices = torch.stack(adjacent_matrices, 0)
+        pivots_knn_inds = torch.stack(pivots_knn_inds, 0)
+        pivots_local_graphs = torch.stack(pivots_local_graphs, 0)
+
+        return (local_graphs_node_feat, adjacent_matrices, pivots_knn_inds,
+                pivots_local_graphs)
+
+    def __call__(self, preds: Tensor, feat_maps: Tensor
+                 ) -> Tuple[bool, Tensor, Tensor, Tensor, Tensor, ndarray]:
+        """Generate local graphs and graph convolutional network input data.
+
+        Args:
+            preds (tensor): The predicted maps.
+            feat_maps (tensor): The feature maps to extract content feature of
+                text components.
+
+        Returns:
+            Tuple(none_flag, local_graphs_node_feat, adjacent_matrices,
+            pivots_knn_inds, pivots_local_graphs, text_comps):
+
+            - none_flag (bool): The flag showing whether the number of proposed
+              text components is 0.
+            - local_graphs_node_feats (tensor): The features of nodes in local
+              graphs.
+            - adjacent_matrices (tensor): The adjacent matrices.
+            - pivots_knn_inds (tensor): The k-nearest neighbor indices in
+              local graphs.
+            - pivots_local_graphs (tensor): The indices of nodes in local
+              graphs.
+            - text_comps (ndarray): The predicted text components.
+        """
+
+        if preds.ndim == 4:
+            assert preds.shape[0] == 1
+            preds = torch.squeeze(preds)
+        pred_text_region = torch.sigmoid(preds[0]).data.cpu().numpy()
+        pred_center_region = torch.sigmoid(preds[1]).data.cpu().numpy()
+        pred_sin_map = preds[2].data.cpu().numpy()
+        pred_cos_map = preds[3].data.cpu().numpy()
+        pred_top_height_map = preds[4].data.cpu().numpy()
+        pred_bot_height_map = preds[5].data.cpu().numpy()
+        device = preds.device
+
+        comp_attribs, text_comps = self.propose_comps_and_attribs(
+            pred_text_region, pred_center_region, pred_top_height_map,
+            pred_bot_height_map, pred_sin_map, pred_cos_map)
+
+        if comp_attribs is None or len(comp_attribs) < 2:
+            none_flag = True
+            return none_flag, (0, 0, 0, 0, 0)
+
+        comp_centers = comp_attribs[:, 0:2]
+        distance_matrix = euclidean_distance_matrix(comp_centers, comp_centers)
+
+        geo_feats = feature_embedding(comp_attribs, self.node_geo_feat_dim)
+        geo_feats = torch.from_numpy(geo_feats).to(preds.device)
+
+        batch_id = np.zeros((comp_attribs.shape[0], 1), dtype=np.float32)
+        comp_attribs = comp_attribs.astype(np.float32)
+        angle = np.arccos(comp_attribs[:, -2]) * np.sign(comp_attribs[:, -1])
+        angle = angle.reshape((-1, 1))
+        rotated_rois = np.hstack([batch_id, comp_attribs[:, :-2], angle])
+        rois = torch.from_numpy(rotated_rois).to(device)
+
+        content_feats = self.pooling(feat_maps, rois)
+        content_feats = content_feats.view(content_feats.shape[0],
+                                           -1).to(device)
+        node_feats = torch.cat([content_feats, geo_feats], dim=-1)
+
+        sorted_dist_inds = np.argsort(distance_matrix, axis=1)
+        (local_graphs_node_feat, adjacent_matrices, pivots_knn_inds,
+         pivots_local_graphs) = self.generate_local_graphs(
+             sorted_dist_inds, node_feats)
+
+        none_flag = False
+        return none_flag, (local_graphs_node_feat, adjacent_matrices,
+                           pivots_knn_inds, pivots_local_graphs, text_comps)
+
+
+class GraphConv(BaseModule):
+    """Graph convolutional neural network.
+
+    Args:
+        in_dim (int): The number of input channels.
+        out_dim (int): The number of output channels.
+    """
+
+    class MeanAggregator(BaseModule):
+        """Mean aggregator for graph convolutional network."""
+
+        def forward(self, features: Tensor, A: Tensor) -> Tensor:
+            """Forward function."""
+            x = torch.bmm(A, features)
+            return x
+
+    def __init__(self, in_dim: int, out_dim: int) -> None:
+        super().__init__()
+        self.in_dim = in_dim
+        self.out_dim = out_dim
+        self.weight = nn.Parameter(torch.FloatTensor(in_dim * 2, out_dim))
+        self.bias = nn.Parameter(torch.FloatTensor(out_dim))
+        init.xavier_uniform_(self.weight)
+        init.constant_(self.bias, 0)
+        self.aggregator = self.MeanAggregator()
+
+    def forward(self, features: Tensor, A: Tensor) -> Tensor:
+        """Forward function."""
+        _, _, d = features.shape
+        assert d == self.in_dim
+        agg_feats = self.aggregator(features, A)
+        cat_feats = torch.cat([features, agg_feats], dim=2)
+        out = torch.einsum('bnd,df->bnf', cat_feats, self.weight)
+        out = F.relu(out + self.bias)
+        return out
+
+
+class GCN(BaseModule):
+    """Graph convolutional network for clustering. This was from repo
+    https://github.com/Zhongdao/gcn_clustering licensed under the MIT license.
+
+    Args:
+        feat_len (int): The input node feature length.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(self,
+                 feat_len: int,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.bn0 = nn.BatchNorm1d(feat_len, affine=False).float()
+        self.conv1 = GraphConv(feat_len, 512)
+        self.conv2 = GraphConv(512, 256)
+        self.conv3 = GraphConv(256, 128)
+        self.conv4 = GraphConv(128, 64)
+        self.classifier = nn.Sequential(
+            nn.Linear(64, 32), nn.PReLU(32), nn.Linear(32, 2))
+
+    def forward(self, node_feats: Tensor, adj_mats: Tensor,
+                knn_inds: Tensor) -> Tensor:
+        """Forward function.
+
+        Args:
+            local_graphs_node_feat (Tensor): The node features of graph.
+            adjacent_matrices (Tensor): The adjacent matrices of local
+                graphs.
+            pivots_knn_inds (Tensor): The k-nearest neighbor indices in
+                local graph.
+
+        Returns:
+            Tensor: The output feature.
+        """
+
+        num_local_graphs, num_max_nodes, feat_len = node_feats.shape
+
+        node_feats = node_feats.view(-1, feat_len)
+        node_feats = self.bn0(node_feats)
+        node_feats = node_feats.view(num_local_graphs, num_max_nodes, feat_len)
+
+        node_feats = self.conv1(node_feats, adj_mats)
+        node_feats = self.conv2(node_feats, adj_mats)
+        node_feats = self.conv3(node_feats, adj_mats)
+        node_feats = self.conv4(node_feats, adj_mats)
+        k = knn_inds.size(-1)
+        mid_feat_len = node_feats.size(-1)
+        edge_feat = torch.zeros((num_local_graphs, k, mid_feat_len),
+                                device=node_feats.device)
+        for graph_ind in range(num_local_graphs):
+            edge_feat[graph_ind, :, :] = node_feats[graph_ind,
+                                                    knn_inds[graph_ind]]
+        edge_feat = edge_feat.view(-1, mid_feat_len)
+        pred = self.classifier(edge_feat)
+
+        return pred
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/fce_head.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/fce_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..949a2835a8aa08ffb1d32f18d480efb1c62260e3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/fce_head.py
@@ -0,0 +1,117 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional
+
+import torch
+import torch.nn as nn
+from mmdet.models.utils import multi_apply
+
+from mmocr.models.textdet.heads import BaseTextDetHead
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+
+
+@MODELS.register_module()
+class FCEHead(BaseTextDetHead):
+    """The class for implementing FCENet head.
+
+    FCENet(CVPR2021): `Fourier Contour Embedding for Arbitrary-shaped Text
+    Detection <https://arxiv.org/abs/2104.10442>`_
+
+    Args:
+        in_channels (int): The number of input channels.
+        fourier_degree (int) : The maximum Fourier transform degree k. Defaults
+            to 5.
+        module_loss (dict): Config of loss for FCENet. Defaults to
+            ``dict(type='FCEModuleLoss', num_sample=50)``.
+        postprocessor (dict): Config of postprocessor for FCENet.
+        init_cfg (dict, optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: int,
+        fourier_degree: int = 5,
+        module_loss: Dict = dict(type='FCEModuleLoss', num_sample=50),
+        postprocessor: Dict = dict(
+            type='FCEPostprocessor',
+            text_repr_type='poly',
+            num_reconstr_points=50,
+            alpha=1.0,
+            beta=2.0,
+            score_thr=0.3),
+        init_cfg: Optional[Dict] = dict(
+            type='Normal',
+            mean=0,
+            std=0.01,
+            override=[dict(name='out_conv_cls'),
+                      dict(name='out_conv_reg')])
+    ) -> None:
+        module_loss['fourier_degree'] = fourier_degree
+        postprocessor['fourier_degree'] = fourier_degree
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
+
+        assert isinstance(in_channels, int)
+        assert isinstance(fourier_degree, int)
+
+        self.in_channels = in_channels
+        self.fourier_degree = fourier_degree
+        self.out_channels_cls = 4
+        self.out_channels_reg = (2 * self.fourier_degree + 1) * 2
+
+        self.out_conv_cls = nn.Conv2d(
+            self.in_channels,
+            self.out_channels_cls,
+            kernel_size=3,
+            stride=1,
+            padding=1)
+        self.out_conv_reg = nn.Conv2d(
+            self.in_channels,
+            self.out_channels_reg,
+            kernel_size=3,
+            stride=1,
+            padding=1)
+
+    def forward(self,
+                inputs: List[torch.Tensor],
+                data_samples: Optional[List[TextDetDataSample]] = None
+                ) -> Dict:
+        """
+        Args:
+            inputs (List[Tensor]): Each tensor has the shape of :math:`(N, C_i,
+                H_i, W_i)`.
+            data_samples (list[TextDetDataSample], optional): A list of data
+                samples. Defaults to None.
+
+        Returns:
+            list[dict]: A list of dict with keys of ``cls_res``, ``reg_res``
+            corresponds to the classification result and regression result
+            computed from the input tensor with the same index. They have
+            the shapes of :math:`(N, C_{cls,i}, H_i, W_i)` and :math:`(N,
+            C_{out,i}, H_i, W_i)`.
+        """
+        cls_res, reg_res = multi_apply(self.forward_single, inputs)
+        level_num = len(cls_res)
+        preds = [
+            dict(cls_res=cls_res[i], reg_res=reg_res[i])
+            for i in range(level_num)
+        ]
+        return preds
+
+    def forward_single(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function for a single feature level.
+
+        Args:
+            x (Tensor): The input tensor with the shape of :math:`(N, C_i,
+                H_i, W_i)`.
+
+        Returns:
+            Tensor: The classification and regression result with the shape of
+            :math:`(N, C_{cls,i}, H_i, W_i)` and :math:`(N, C_{out,i}, H_i,
+            W_i)`.
+        """
+        cls_predict = self.out_conv_cls(x)
+        reg_predict = self.out_conv_reg(x)
+        return cls_predict, reg_predict
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/pan_head.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/pan_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..a7d4f053d09049c21442d357f631c51ac2f3e41d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/pan_head.py
@@ -0,0 +1,83 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List, Optional
+
+import torch
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import check_argument
+from .base import BaseTextDetHead
+
+
+@MODELS.register_module()
+class PANHead(BaseTextDetHead):
+    """The class for PANet head.
+
+    Args:
+        in_channels (list[int]): A list of 4 numbers of input channels.
+        hidden_dim (int): The hidden dimension of the first convolutional
+            layer.
+        out_channel (int): Number of output channels.
+        module_loss (dict): Configuration dictionary for loss type. Defaults
+            to dict(type='PANModuleLoss')
+        postprocessor (dict): Config of postprocessor for PANet. Defaults to
+            dict(type='PANPostprocessor', text_repr_type='poly').
+        init_cfg (list[dict]): Initialization configs. Defaults to
+            [dict(type='Normal', mean=0, std=0.01, layer='Conv2d'),
+             dict(type='Constant', val=1, bias=0, layer='BN')]
+    """
+
+    def __init__(
+        self,
+        in_channels: List[int],
+        hidden_dim: int,
+        out_channel: int,
+        module_loss=dict(type='PANModuleLoss'),
+        postprocessor=dict(type='PANPostprocessor', text_repr_type='poly'),
+        init_cfg=[
+            dict(type='Normal', mean=0, std=0.01, layer='Conv2d'),
+            dict(type='Constant', val=1, bias=0, layer='BN')
+        ]
+    ) -> None:
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
+
+        assert check_argument.is_type_list(in_channels, int)
+        assert isinstance(out_channel, int)
+        assert isinstance(hidden_dim, int)
+
+        in_channels = sum(in_channels)
+        self.conv1 = nn.Conv2d(
+            in_channels, hidden_dim, kernel_size=3, stride=1, padding=1)
+        self.bn1 = nn.BatchNorm2d(hidden_dim)
+        self.relu1 = nn.ReLU(inplace=True)
+        self.conv2 = nn.Conv2d(
+            hidden_dim, out_channel, kernel_size=1, stride=1, padding=0)
+
+    def forward(self,
+                inputs: torch.Tensor,
+                data_samples: Optional[List[TextDetDataSample]] = None
+                ) -> torch.Tensor:
+        r"""PAN head forward.
+        Args:
+            inputs (list[Tensor] | Tensor): Each tensor has the shape of
+                :math:`(N, C_i, W, H)`, where :math:`\sum_iC_i=C_{in}` and
+                :math:`C_{in}` is ``input_channels``.
+            data_samples (list[TextDetDataSample], optional): A list of data
+                samples. Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, C_{out}, W, H)` where
+            :math:`C_{out}` is ``output_channels``.
+        """
+        if isinstance(inputs, tuple):
+            outputs = torch.cat(inputs, dim=1)
+        else:
+            outputs = inputs
+        outputs = self.conv1(outputs)
+        outputs = self.relu1(self.bn1(outputs))
+        outputs = self.conv2(outputs)
+        return outputs
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/pse_head.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/pse_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..0aee6a07b4d6325d22a14dc76c2796391ce62eab
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/pse_head.py
@@ -0,0 +1,39 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Union
+
+from mmocr.registry import MODELS
+from . import PANHead
+
+
+@MODELS.register_module()
+class PSEHead(PANHead):
+    """The class for PSENet head.
+
+    Args:
+        in_channels (list[int]): A list of numbers of input channels.
+        hidden_dim (int): The hidden dimension of the first convolutional
+            layer.
+        out_channel (int): Number of output channels.
+        module_loss (dict): Configuration dictionary for loss type. Supported
+            loss types are "PANModuleLoss" and "PSEModuleLoss". Defaults to
+            PSEModuleLoss.
+        postprocessor (dict): Config of postprocessor for PSENet.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(self,
+                 in_channels: List[int],
+                 hidden_dim: int,
+                 out_channel: int,
+                 module_loss: Dict = dict(type='PSEModuleLoss'),
+                 postprocessor: Dict = dict(
+                     type='PSEPostprocessor', text_repr_type='poly'),
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+
+        super().__init__(
+            in_channels=in_channels,
+            hidden_dim=hidden_dim,
+            out_channel=out_channel,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/heads/textsnake_head.py b/mmocr-dev-1.x/mmocr/models/textdet/heads/textsnake_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..6cda55e10f445ed77771eabcde6a8dc91986550d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/heads/textsnake_head.py
@@ -0,0 +1,76 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.textdet.heads import BaseTextDetHead
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+
+
+@MODELS.register_module()
+class TextSnakeHead(BaseTextDetHead):
+    """The class for TextSnake head: TextSnake: A Flexible Representation for
+    Detecting Text of Arbitrary Shapes.
+
+    TextSnake: `A Flexible Representation for Detecting Text of Arbitrary
+    Shapes <https://arxiv.org/abs/1807.01544>`_.
+
+    Args:
+        in_channels (int): Number of input channels.
+        out_channels (int): Number of output channels.
+        downsample_ratio (float): Downsample ratio.
+        module_loss (dict): Configuration dictionary for loss type.
+            Defaults to ``dict(type='TextSnakeModuleLoss')``.
+        postprocessor (dict): Config of postprocessor for TextSnake.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: int,
+        out_channels: int = 5,
+        downsample_ratio: float = 1.0,
+        module_loss: Dict = dict(type='TextSnakeModuleLoss'),
+        postprocessor: Dict = dict(
+            type='TextSnakePostprocessor', text_repr_type='poly'),
+        init_cfg: Optional[Union[Dict, List[Dict]]] = dict(
+            type='Normal', override=dict(name='out_conv'), mean=0, std=0.01)
+    ) -> None:
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
+        assert isinstance(in_channels, int)
+        assert isinstance(out_channels, int)
+        self.in_channels = in_channels
+        self.out_channels = out_channels
+        self.downsample_ratio = downsample_ratio
+
+        self.out_conv = nn.Conv2d(
+            in_channels=self.in_channels,
+            out_channels=self.out_channels,
+            kernel_size=1,
+            stride=1,
+            padding=0)
+
+    def forward(self,
+                inputs: torch.Tensor,
+                data_samples: Optional[List[TextDetDataSample]] = None
+                ) -> Dict:
+        """
+        Args:
+            inputs (torch.Tensor): Shape :math:`(N, C_{in}, H, W)`, where
+                :math:`C_{in}` is ``in_channels``. :math:`H` and :math:`W`
+                should be the same as the input of backbone.
+            data_samples (list[TextDetDataSample], optional): A list of data
+                samples. Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, 5, H, W)`, where the five
+            channels represent [0]: text score, [1]: center score,
+            [2]: sin, [3] cos, [4] radius, respectively.
+        """
+        outputs = self.out_conv(inputs)
+        return outputs
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/__init__.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..111c47990143147a8acaf6fdf75a36749042af0c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .db_module_loss import DBModuleLoss
+from .drrg_module_loss import DRRGModuleLoss
+from .fce_module_loss import FCEModuleLoss
+from .pan_module_loss import PANModuleLoss
+from .pse_module_loss import PSEModuleLoss
+from .seg_based_module_loss import SegBasedModuleLoss
+from .textsnake_module_loss import TextSnakeModuleLoss
+
+__all__ = [
+    'PANModuleLoss', 'PSEModuleLoss', 'DBModuleLoss', 'TextSnakeModuleLoss',
+    'FCEModuleLoss', 'DRRGModuleLoss', 'SegBasedModuleLoss'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/base.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..b65c5c5ec77f683ca8feaad28f8a6931458c816a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/base.py
@@ -0,0 +1,51 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import ABCMeta, abstractmethod
+from typing import Dict, Sequence, Tuple, Union
+
+import torch
+from torch import nn
+
+from mmocr.registry import MODELS
+from mmocr.utils.typing_utils import DetSampleList
+
+INPUT_TYPES = Union[torch.Tensor, Sequence[torch.Tensor], Dict]
+
+
+@MODELS.register_module()
+class BaseTextDetModuleLoss(nn.Module, metaclass=ABCMeta):
+    r"""Base class for text detection module loss.
+    """
+
+    def __init__(self) -> None:
+        super().__init__()
+
+    @abstractmethod
+    def forward(self,
+                inputs: INPUT_TYPES,
+                data_samples: DetSampleList = None) -> Dict:
+        """Calculates losses from a batch of inputs and data samples. Returns a
+        dict of losses.
+
+        Args:
+            inputs (Tensor or list[Tensor] or dict): The raw tensor outputs
+                from the model.
+            data_samples (list(TextDetDataSample)): Datasamples containing
+                ground truth data.
+
+        Returns:
+            dict: A dict of losses.
+        """
+        pass
+
+    @abstractmethod
+    def get_targets(self, data_samples: DetSampleList) -> Tuple:
+        """Generates loss targets from data samples. Returns a tuple of target
+        tensors.
+
+        Args:
+            data_samples (list(TextDetDataSample)): Ground truth data samples.
+
+        Returns:
+            tuple: A tuple of target tensors.
+        """
+        pass
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/db_module_loss.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/db_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..ba8487310f2ce9592a2fa5b8b20621b870a9fe05
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/db_module_loss.py
@@ -0,0 +1,300 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Sequence, Tuple, Union
+
+import cv2
+import numpy as np
+import torch
+from mmdet.models.utils import multi_apply
+from shapely.geometry import Polygon
+from torch import Tensor
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import offset_polygon
+from mmocr.utils.typing_utils import ArrayLike
+from .seg_based_module_loss import SegBasedModuleLoss
+
+
+@MODELS.register_module()
+class DBModuleLoss(SegBasedModuleLoss):
+    r"""The class for implementing DBNet loss.
+
+    This is partially adapted from https://github.com/MhLiao/DB.
+
+    Args:
+        loss_prob (dict): The loss config for probability map. Defaults to
+            dict(type='MaskedBalancedBCEWithLogitsLoss').
+        loss_thr (dict): The loss config for threshold map. Defaults to
+            dict(type='MaskedSmoothL1Loss', beta=0).
+        loss_db (dict): The loss config for binary map. Defaults to
+            dict(type='MaskedDiceLoss').
+        weight_prob (float): The weight of probability map loss.
+            Denoted as :math:`\alpha` in paper. Defaults to 5.
+        weight_thr (float): The weight of threshold map loss.
+            Denoted as :math:`\beta` in paper. Defaults to 10.
+        shrink_ratio (float): The ratio of shrunk text region. Defaults to 0.4.
+        thr_min (float): The minimum threshold map value. Defaults to 0.3.
+        thr_max (float): The maximum threshold map value. Defaults to 0.7.
+        min_sidelength (int or float): The minimum sidelength of the
+            minimum rotated rectangle around any text region. Defaults to 8.
+    """
+
+    def __init__(self,
+                 loss_prob: Dict = dict(
+                     type='MaskedBalancedBCEWithLogitsLoss'),
+                 loss_thr: Dict = dict(type='MaskedSmoothL1Loss', beta=0),
+                 loss_db: Dict = dict(type='MaskedDiceLoss'),
+                 weight_prob: float = 5.,
+                 weight_thr: float = 10.,
+                 shrink_ratio: float = 0.4,
+                 thr_min: float = 0.3,
+                 thr_max: float = 0.7,
+                 min_sidelength: Union[int, float] = 8) -> None:
+        super().__init__()
+        self.loss_prob = MODELS.build(loss_prob)
+        self.loss_thr = MODELS.build(loss_thr)
+        self.loss_db = MODELS.build(loss_db)
+        self.weight_prob = weight_prob
+        self.weight_thr = weight_thr
+        self.shrink_ratio = shrink_ratio
+        self.thr_min = thr_min
+        self.thr_max = thr_max
+        self.min_sidelength = min_sidelength
+
+    def forward(self, preds: Tuple[Tensor, Tensor, Tensor],
+                data_samples: Sequence[TextDetDataSample]) -> Dict:
+        """Compute DBNet loss.
+
+        Args:
+            preds (tuple(tensor)): Raw predictions from model, containing
+                ``prob_logits``, ``thr_map`` and ``binary_map``.
+                Each is a tensor of shape :math:`(N, H, W)`.
+            data_samples (list[TextDetDataSample]): The data samples.
+
+        Returns:
+            results(dict): The dict for dbnet losses with loss_prob, \
+                loss_db and loss_thr.
+        """
+        prob_logits, thr_map, binary_map = preds
+        gt_shrinks, gt_shrink_masks, gt_thrs, gt_thr_masks = self.get_targets(
+            data_samples)
+        gt_shrinks = gt_shrinks.to(prob_logits.device)
+        gt_shrink_masks = gt_shrink_masks.to(prob_logits.device)
+        gt_thrs = gt_thrs.to(thr_map.device)
+        gt_thr_masks = gt_thr_masks.to(thr_map.device)
+        loss_prob = self.loss_prob(prob_logits, gt_shrinks, gt_shrink_masks)
+
+        loss_thr = self.loss_thr(thr_map, gt_thrs, gt_thr_masks)
+        loss_db = self.loss_db(binary_map, gt_shrinks, gt_shrink_masks)
+
+        results = dict(
+            loss_prob=self.weight_prob * loss_prob,
+            loss_thr=self.weight_thr * loss_thr,
+            loss_db=loss_db)
+
+        return results
+
+    def _is_poly_invalid(self, poly: np.ndarray) -> bool:
+        """Check if the input polygon is invalid or not. It is invalid if its
+        area is smaller than 1 or the shorter side of its minimum bounding box
+        is smaller than min_sidelength.
+
+        Args:
+            poly (ndarray): The polygon.
+
+        Returns:
+            bool: Whether the polygon is invalid.
+        """
+        poly = poly.reshape(-1, 2)
+        area = Polygon(poly).area
+        if abs(area) < 1:
+            return True
+        rect_size = cv2.minAreaRect(poly)[1]
+        len_shortest_side = min(rect_size)
+        if len_shortest_side < self.min_sidelength:
+            return True
+
+        return False
+
+    def _generate_thr_map(self, img_size: Tuple[int, int],
+                          polygons: ArrayLike) -> np.ndarray:
+        """Generate threshold map.
+
+        Args:
+            img_size (tuple(int)): The image size (h, w)
+            polygons (Sequence[ndarray]): 2-d array, representing all the
+                polygons of the text region.
+
+        Returns:
+            tuple:
+
+            - thr_map (ndarray): The generated threshold map.
+            - thr_mask (ndarray): The effective mask of threshold map.
+        """
+        thr_map = np.zeros(img_size, dtype=np.float32)
+        thr_mask = np.zeros(img_size, dtype=np.uint8)
+
+        for polygon in polygons:
+            self._draw_border_map(polygon, thr_map, mask=thr_mask)
+        thr_map = thr_map * (self.thr_max - self.thr_min) + self.thr_min
+
+        return thr_map, thr_mask
+
+    def _draw_border_map(self, polygon: np.ndarray, canvas: np.ndarray,
+                         mask: np.ndarray) -> None:
+        """Generate threshold map for one polygon.
+
+        Args:
+            polygon (np.ndarray): The polygon.
+            canvas (np.ndarray): The generated threshold map.
+            mask (np.ndarray): The generated threshold mask.
+        """
+
+        polygon = polygon.reshape(-1, 2)
+        polygon_obj = Polygon(polygon)
+        distance = (
+            polygon_obj.area * (1 - np.power(self.shrink_ratio, 2)) /
+            polygon_obj.length)
+        expanded_polygon = offset_polygon(polygon, distance)
+        if len(expanded_polygon) == 0:
+            print(f'Padding {polygon} with {distance} gets {expanded_polygon}')
+            expanded_polygon = polygon.copy().astype(np.int32)
+        else:
+            expanded_polygon = expanded_polygon.reshape(-1, 2).astype(np.int32)
+
+        x_min = expanded_polygon[:, 0].min()
+        x_max = expanded_polygon[:, 0].max()
+        y_min = expanded_polygon[:, 1].min()
+        y_max = expanded_polygon[:, 1].max()
+
+        width = x_max - x_min + 1
+        height = y_max - y_min + 1
+
+        polygon[:, 0] = polygon[:, 0] - x_min
+        polygon[:, 1] = polygon[:, 1] - y_min
+
+        xs = np.broadcast_to(
+            np.linspace(0, width - 1, num=width).reshape(1, width),
+            (height, width))
+        ys = np.broadcast_to(
+            np.linspace(0, height - 1, num=height).reshape(height, 1),
+            (height, width))
+
+        distance_map = np.zeros((polygon.shape[0], height, width),
+                                dtype=np.float32)
+        for i in range(polygon.shape[0]):
+            j = (i + 1) % polygon.shape[0]
+            absolute_distance = self._dist_points2line(xs, ys, polygon[i],
+                                                       polygon[j])
+            distance_map[i] = np.clip(absolute_distance / distance, 0, 1)
+        distance_map = distance_map.min(axis=0)
+
+        x_min_valid = min(max(0, x_min), canvas.shape[1] - 1)
+        x_max_valid = min(max(0, x_max), canvas.shape[1] - 1)
+        y_min_valid = min(max(0, y_min), canvas.shape[0] - 1)
+        y_max_valid = min(max(0, y_max), canvas.shape[0] - 1)
+
+        if x_min_valid - x_min >= width or y_min_valid - y_min >= height:
+            return
+
+        cv2.fillPoly(mask, [expanded_polygon.astype(np.int32)], 1.0)
+        canvas[y_min_valid:y_max_valid + 1,
+               x_min_valid:x_max_valid + 1] = np.fmax(
+                   1 - distance_map[y_min_valid - y_min:y_max_valid - y_max +
+                                    height, x_min_valid - x_min:x_max_valid -
+                                    x_max + width],
+                   canvas[y_min_valid:y_max_valid + 1,
+                          x_min_valid:x_max_valid + 1])
+
+    def get_targets(self, data_samples: List[TextDetDataSample]) -> Tuple:
+        """Generate loss targets from data samples.
+
+        Args:
+            data_samples (list(TextDetDataSample)): Ground truth data samples.
+
+        Returns:
+            tuple: A tuple of four tensors as DBNet targets.
+        """
+
+        gt_shrinks, gt_shrink_masks, gt_thrs, gt_thr_masks = multi_apply(
+            self._get_target_single, data_samples)
+        gt_shrinks = torch.cat(gt_shrinks)
+        gt_shrink_masks = torch.cat(gt_shrink_masks)
+        gt_thrs = torch.cat(gt_thrs)
+        gt_thr_masks = torch.cat(gt_thr_masks)
+        return gt_shrinks, gt_shrink_masks, gt_thrs, gt_thr_masks
+
+    def _get_target_single(self, data_sample: TextDetDataSample) -> Tuple:
+        """Generate loss target from a data sample.
+
+        Args:
+            data_sample (TextDetDataSample): The data sample.
+
+        Returns:
+            tuple: A tuple of four tensors as the targets of one prediction.
+        """
+
+        gt_instances = data_sample.gt_instances
+        ignore_flags = gt_instances.ignored
+        for idx, polygon in enumerate(gt_instances.polygons):
+            if self._is_poly_invalid(polygon):
+                ignore_flags[idx] = True
+        gt_shrink, ignore_flags = self._generate_kernels(
+            data_sample.img_shape,
+            gt_instances.polygons,
+            self.shrink_ratio,
+            ignore_flags=ignore_flags)
+
+        # Get boolean mask where Trues indicate text instance pixels
+        gt_shrink = gt_shrink > 0
+
+        gt_shrink_mask = self._generate_effective_mask(
+            data_sample.img_shape, gt_instances[ignore_flags].polygons)
+        gt_thr, gt_thr_mask = self._generate_thr_map(
+            data_sample.img_shape, gt_instances[~ignore_flags].polygons)
+
+        # to_tensor
+        gt_shrink = torch.from_numpy(gt_shrink).unsqueeze(0).float()
+        gt_shrink_mask = torch.from_numpy(gt_shrink_mask).unsqueeze(0).float()
+        gt_thr = torch.from_numpy(gt_thr).unsqueeze(0).float()
+        gt_thr_mask = torch.from_numpy(gt_thr_mask).unsqueeze(0).float()
+        return gt_shrink, gt_shrink_mask, gt_thr, gt_thr_mask
+
+    @staticmethod
+    def _dist_points2line(xs: np.ndarray, ys: np.ndarray, pt1: np.ndarray,
+                          pt2: np.ndarray) -> np.ndarray:
+        """Compute distances from points to a line. This is adapted from
+        https://github.com/MhLiao/DB.
+
+        Args:
+            xs (ndarray): The x coordinates of points of size :math:`(N, )`.
+            ys (ndarray): The y coordinates of size :math:`(N, )`.
+            pt1 (ndarray): The first point on the line of size :math:`(2, )`.
+            pt2 (ndarray): The second point on the line of size :math:`(2, )`.
+
+        Returns:
+            ndarray: The distance matrix of size :math:`(N, )`.
+        """
+        # suppose a triangle with three edge abc with c=point_1 point_2
+        # a^2
+        a_square = np.square(xs - pt1[0]) + np.square(ys - pt1[1])
+        # b^2
+        b_square = np.square(xs - pt2[0]) + np.square(ys - pt2[1])
+        # c^2
+        c_square = np.square(pt1[0] - pt2[0]) + np.square(pt1[1] - pt2[1])
+        # -cosC=(c^2-a^2-b^2)/2(ab)
+        neg_cos_c = (
+            (c_square - a_square - b_square) /
+            (np.finfo(np.float32).eps + 2 * np.sqrt(a_square * b_square)))
+        # clip -cosC value to [-1, 1]
+        neg_cos_c = np.clip(neg_cos_c, -1.0, 1.0)
+        # sinC^2=1-cosC^2
+        square_sin = 1 - np.square(neg_cos_c)
+        square_sin = np.nan_to_num(square_sin)
+        # distance=a*b*sinC/c=a*h/c=2*area/c
+        result = np.sqrt(a_square * b_square * square_sin /
+                         (np.finfo(np.float32).eps + c_square))
+        # set result to minimum edge if C<pi/2
+        result[neg_cos_c < 0] = np.sqrt(np.fmin(a_square,
+                                                b_square))[neg_cos_c < 0]
+        return result
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/drrg_module_loss.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/drrg_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..a07fbb2a6d1ce8e784715107f3366685f0a8294d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/drrg_module_loss.py
@@ -0,0 +1,736 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Sequence, Tuple
+
+import cv2
+import numpy as np
+import torch
+
+try:
+    from lanms import merge_quadrangle_n9 as la_nms
+except ImportError:
+    la_nms = None
+from mmcv.image import imrescale
+from mmdet.models.utils import multi_apply
+from numpy import ndarray
+from numpy.linalg import norm
+from torch import Tensor
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import check_argument
+from .textsnake_module_loss import TextSnakeModuleLoss
+
+
+@MODELS.register_module()
+class DRRGModuleLoss(TextSnakeModuleLoss):
+    """The class for implementing DRRG loss. This is partially adapted from
+    https://github.com/GXYM/DRRG licensed under the MIT license.
+
+    DRRG: `Deep Relational Reasoning Graph Network for Arbitrary Shape Text
+    Detection <https://arxiv.org/abs/1908.05900>`_.
+
+    Args:
+        ohem_ratio (float): The negative/positive ratio in ohem. Defaults to
+            3.0.
+        downsample_ratio (float): Downsample ratio. Defaults to 1.0. TODO:
+            remove it.
+        orientation_thr (float): The threshold for distinguishing between
+            head edge and tail edge among the horizontal and vertical edges
+            of a quadrangle. Defaults to 2.0.
+        resample_step (float): The step size for resampling the text center
+            line. Defaults to 8.0.
+        num_min_comps (int): The minimum number of text components, which
+            should be larger than k_hop1 mentioned in paper. Defaults to 9.
+        num_max_comps (int): The maximum number of text components. Defaults
+            to 600.
+        min_width (float): The minimum width of text components. Defaults to
+            8.0.
+        max_width (float): The maximum width of text components. Defaults to
+            24.0.
+        center_region_shrink_ratio (float): The shrink ratio of text center
+            regions. Defaults to 0.3.
+        comp_shrink_ratio (float): The shrink ratio of text components.
+            Defaults to 1.0.
+        comp_w_h_ratio (float): The width to height ratio of text components.
+            Defaults to 0.3.
+        min_rand_half_height(float): The minimum half-height of random text
+            components. Defaults to 8.0.
+        max_rand_half_height (float): The maximum half-height of random
+            text components. Defaults to 24.0.
+        jitter_level (float): The jitter level of text component geometric
+            features. Defaults to 0.2.
+        loss_text (dict): The loss config used to calculate the text loss.
+            Defaults to ``dict(type='MaskedBalancedBCEWithLogitsLoss',
+            fallback_negative_num=100, eps=1e-5)``.
+        loss_center (dict): The loss config used to calculate the center loss.
+            Defaults to ``dict(type='MaskedBCEWithLogitsLoss')``.
+        loss_top (dict): The loss config used to calculate the top loss, which
+            is a part of the height loss. Defaults to
+            ``dict(type='SmoothL1Loss', reduction='none')``.
+        loss_btm (dict): The loss config used to calculate the bottom loss,
+            which is a part of the height loss. Defaults to
+            ``dict(type='SmoothL1Loss', reduction='none')``.
+        loss_sin (dict): The loss config used to calculate the sin loss.
+            Defaults to ``dict(type='MaskedSmoothL1Loss')``.
+        loss_cos (dict): The loss config used to calculate the cos loss.
+            Defaults to ``dict(type='MaskedSmoothL1Loss')``.
+        loss_gcn (dict): The loss config used to calculate the GCN loss.
+            Defaults to ``dict(type='CrossEntropyLoss')``.
+    """
+
+    def __init__(
+        self,
+        ohem_ratio: float = 3.0,
+        downsample_ratio: float = 1.0,
+        orientation_thr: float = 2.0,
+        resample_step: float = 8.0,
+        num_min_comps: int = 9,
+        num_max_comps: int = 600,
+        min_width: float = 8.0,
+        max_width: float = 24.0,
+        center_region_shrink_ratio: float = 0.3,
+        comp_shrink_ratio: float = 1.0,
+        comp_w_h_ratio: float = 0.3,
+        text_comp_nms_thr: float = 0.25,
+        min_rand_half_height: float = 8.0,
+        max_rand_half_height: float = 24.0,
+        jitter_level: float = 0.2,
+        loss_text: Dict = dict(
+            type='MaskedBalancedBCEWithLogitsLoss',
+            fallback_negative_num=100,
+            eps=1e-5),
+        loss_center: Dict = dict(type='MaskedBCEWithLogitsLoss'),
+        loss_top: Dict = dict(type='SmoothL1Loss', reduction='none'),
+        loss_btm: Dict = dict(type='SmoothL1Loss', reduction='none'),
+        loss_sin: Dict = dict(type='MaskedSmoothL1Loss'),
+        loss_cos: Dict = dict(type='MaskedSmoothL1Loss'),
+        loss_gcn: Dict = dict(type='CrossEntropyLoss')
+    ) -> None:
+        super().__init__()
+        self.ohem_ratio = ohem_ratio
+        self.downsample_ratio = downsample_ratio
+        self.orientation_thr = orientation_thr
+        self.resample_step = resample_step
+        self.num_max_comps = num_max_comps
+        self.num_min_comps = num_min_comps
+        self.min_width = min_width
+        self.max_width = max_width
+        self.center_region_shrink_ratio = center_region_shrink_ratio
+        self.comp_shrink_ratio = comp_shrink_ratio
+        self.comp_w_h_ratio = comp_w_h_ratio
+        self.text_comp_nms_thr = text_comp_nms_thr
+        self.min_rand_half_height = min_rand_half_height
+        self.max_rand_half_height = max_rand_half_height
+        self.jitter_level = jitter_level
+        self.loss_text = MODELS.build(loss_text)
+        self.loss_center = MODELS.build(loss_center)
+        self.loss_top = MODELS.build(loss_top)
+        self.loss_btm = MODELS.build(loss_btm)
+        self.loss_sin = MODELS.build(loss_sin)
+        self.loss_cos = MODELS.build(loss_cos)
+        self.loss_gcn = MODELS.build(loss_gcn)
+
+    def forward(self, preds: Tuple[Tensor, Tensor, Tensor],
+                data_samples: Sequence[TextDetDataSample]) -> Dict:
+        """Compute Drrg loss.
+
+        Args:
+            preds (tuple): The prediction
+                tuple(pred_maps, gcn_pred, gt_labels), each of shape
+                :math:`(N, 6, H, W)`, :math:`(N, 2)` and :math:`(m ,n)`, where
+                :math:`m * n = N`.
+            data_samples (list[TextDetDataSample]): The data samples.
+
+        Returns:
+            dict:  A loss dict with ``loss_text``, ``loss_center``,
+            ``loss_height``, ``loss_sin``, ``loss_cos``, and ``loss_gcn``.
+        """
+        assert isinstance(preds, tuple)
+
+        (gt_text_masks, gt_center_region_masks, gt_masks, gt_top_height_maps,
+         gt_bot_height_maps, gt_sin_maps, gt_cos_maps,
+         _) = self.get_targets(data_samples)
+        pred_maps, gcn_pred, gt_labels = preds
+        pred_text_region = pred_maps[:, 0, :, :]
+        pred_center_region = pred_maps[:, 1, :, :]
+        pred_sin_map = pred_maps[:, 2, :, :]
+        pred_cos_map = pred_maps[:, 3, :, :]
+        pred_top_height_map = pred_maps[:, 4, :, :]
+        pred_bot_height_map = pred_maps[:, 5, :, :]
+        feature_sz = pred_maps.size()
+        device = pred_maps.device
+
+        # bitmask 2 tensor
+        mapping = {
+            'gt_text_masks': gt_text_masks,
+            'gt_center_region_masks': gt_center_region_masks,
+            'gt_masks': gt_masks,
+            'gt_top_height_maps': gt_top_height_maps,
+            'gt_bot_height_maps': gt_bot_height_maps,
+            'gt_sin_maps': gt_sin_maps,
+            'gt_cos_maps': gt_cos_maps
+        }
+        gt = {}
+        for key, value in mapping.items():
+            gt[key] = value
+            if abs(self.downsample_ratio - 1.0) < 1e-2:
+                gt[key] = self._batch_pad(gt[key], feature_sz[2:])
+            else:
+                gt[key] = [
+                    imrescale(
+                        mask,
+                        scale=self.downsample_ratio,
+                        interpolation='nearest') for mask in gt[key]
+                ]
+                gt[key] = self._batch_pad(gt[key], feature_sz[2:])
+                if key in ['gt_top_height_maps', 'gt_bot_height_maps']:
+                    gt[key] *= self.downsample_ratio
+            gt[key] = torch.from_numpy(gt[key]).float().to(device)
+
+        scale = torch.sqrt(1.0 / (pred_sin_map**2 + pred_cos_map**2 + 1e-8))
+        pred_sin_map = pred_sin_map * scale
+        pred_cos_map = pred_cos_map * scale
+
+        loss_text = self.loss_text(pred_text_region, gt['gt_text_masks'],
+                                   gt['gt_masks'])
+
+        text_mask = (gt['gt_text_masks'] * gt['gt_masks']).float()
+        negative_text_mask = ((1 - gt['gt_text_masks']) *
+                              gt['gt_masks']).float()
+        loss_center_positive = self.loss_center(pred_center_region,
+                                                gt['gt_center_region_masks'],
+                                                text_mask)
+        loss_center_negative = self.loss_center(pred_center_region,
+                                                gt['gt_center_region_masks'],
+                                                negative_text_mask)
+        loss_center = loss_center_positive + 0.5 * loss_center_negative
+
+        center_mask = (gt['gt_center_region_masks'] * gt['gt_masks']).float()
+        map_sz = pred_top_height_map.size()
+        ones = torch.ones(map_sz, dtype=torch.float, device=device)
+        loss_top = self.loss_top(
+            pred_top_height_map / (gt['gt_top_height_maps'] + 1e-2), ones)
+        loss_btm = self.loss_btm(
+            pred_bot_height_map / (gt['gt_bot_height_maps'] + 1e-2), ones)
+        gt_height = gt['gt_top_height_maps'] + gt['gt_bot_height_maps']
+        loss_height = torch.sum((torch.log(gt_height + 1) *
+                                 (loss_top + loss_btm)) * center_mask) / (
+                                     torch.sum(center_mask) + 1e-6)
+
+        loss_sin = self.loss_sin(pred_sin_map, gt['gt_sin_maps'], center_mask)
+        loss_cos = self.loss_cos(pred_cos_map, gt['gt_cos_maps'], center_mask)
+
+        loss_gcn = self.loss_gcn(gcn_pred,
+                                 gt_labels.view(-1).to(gcn_pred.device))
+
+        results = dict(
+            loss_text=loss_text,
+            loss_center=loss_center,
+            loss_height=loss_height,
+            loss_sin=loss_sin,
+            loss_cos=loss_cos,
+            loss_gcn=loss_gcn)
+
+        return results
+
+    def get_targets(self, data_samples: List[TextDetDataSample]) -> Tuple:
+        """Generate loss targets from data samples.
+
+        Args:
+            data_samples (list(TextDetDataSample)): Ground truth data samples.
+
+        Returns:
+            tuple: A tuple of 8 lists of tensors as DRRG targets. Read
+            docstring of ``_get_target_single`` for more details.
+        """
+
+        # If data_samples points to same object as self.cached_data_samples, it
+        # means that get_targets is called more than once in the same train
+        # iteration, and pre-computed targets can be reused.
+        if hasattr(self, 'targets') and \
+                self.cache_data_samples is data_samples:
+            return self.targets
+
+        self.cache_data_samples = data_samples
+        self.targets = multi_apply(self._get_target_single, data_samples)
+        return self.targets
+
+    def _get_target_single(self, data_sample: TextDetDataSample) -> Tuple:
+        """Generate loss target from a data sample.
+
+        Args:
+            data_sample (TextDetDataSample): The data sample.
+
+        Returns:
+            tuple: A tuple of 8 tensors as DRRG targets.
+
+            - gt_text_mask (ndarray): The text region mask.
+            - gt_center_region_mask (ndarray): The text center region mask.
+            - gt_mask (ndarray): The effective mask.
+            - gt_top_height_map (ndarray): The map on which the distance from
+              points to top side lines will be drawn for each pixel in text
+              center regions.
+            - gt_bot_height_map (ndarray): The map on which the distance from
+              points to bottom side lines will be drawn for each pixel in text
+              center regions.
+            - gt_sin_map (ndarray): The sin(theta) map where theta is the angle
+              between vector (top point - bottom point) and vector (1, 0).
+            - gt_cos_map (ndarray): The cos(theta) map where theta is the angle
+              between vector (top point - bottom point) and vector (1, 0).
+            - gt_comp_attribs (ndarray): The padded text component attributes
+              of a fixed size. Shape: (num_component, 8).
+        """
+
+        gt_instances = data_sample.gt_instances
+        ignore_flags = gt_instances.ignored
+
+        polygons = gt_instances[~ignore_flags].polygons
+        ignored_polygons = gt_instances[ignore_flags].polygons
+        h, w = data_sample.img_shape
+
+        gt_text_mask = self._generate_text_region_mask((h, w), polygons)
+        gt_mask = self._generate_effective_mask((h, w), ignored_polygons)
+        (center_lines, gt_center_region_mask, gt_top_height_map,
+         gt_bot_height_map, gt_sin_map,
+         gt_cos_map) = self._generate_center_mask_attrib_maps((h, w), polygons)
+
+        gt_comp_attribs = self._generate_comp_attribs(center_lines,
+                                                      gt_text_mask,
+                                                      gt_center_region_mask,
+                                                      gt_top_height_map,
+                                                      gt_bot_height_map,
+                                                      gt_sin_map, gt_cos_map)
+
+        return (gt_text_mask, gt_center_region_mask, gt_mask,
+                gt_top_height_map, gt_bot_height_map, gt_sin_map, gt_cos_map,
+                gt_comp_attribs)
+
+    def _generate_center_mask_attrib_maps(self, img_size: Tuple[int, int],
+                                          text_polys: List[ndarray]) -> Tuple:
+        """Generate text center region masks and geometric attribute maps.
+
+        Args:
+            img_size (tuple(int, int)): The image size (height, width).
+            text_polys (list[ndarray]): The list of text polygons.
+
+        Returns:
+            tuple(center_lines, center_region_mask, top_height_map,
+            bot_height_map,sin_map, cos_map):
+
+            center_lines (list[ndarray]): The list of text center lines.
+            center_region_mask (ndarray): The text center region mask.
+            top_height_map (ndarray): The map on which the distance from points
+                to top side lines will be drawn for each pixel in text center
+                regions.
+            bot_height_map (ndarray): The map on which the distance from points
+                to bottom side lines will be drawn for each pixel in text
+                center regions.
+            sin_map (ndarray): The sin(theta) map where theta is the angle
+                between vector (top point - bottom point) and vector (1, 0).
+            cos_map (ndarray): The cos(theta) map where theta is the angle
+                between vector (top point - bottom point) and vector (1, 0).
+        """
+
+        assert isinstance(img_size, tuple)
+        assert check_argument.is_type_list(text_polys, ndarray)
+
+        h, w = img_size
+
+        center_lines = []
+        center_region_mask = np.zeros((h, w), np.uint8)
+        top_height_map = np.zeros((h, w), dtype=np.float32)
+        bot_height_map = np.zeros((h, w), dtype=np.float32)
+        sin_map = np.zeros((h, w), dtype=np.float32)
+        cos_map = np.zeros((h, w), dtype=np.float32)
+
+        for poly in text_polys:
+            polygon_points = poly.reshape(-1, 2)
+            _, _, top_line, bot_line = self._reorder_poly_edge(polygon_points)
+            resampled_top_line, resampled_bot_line = self._resample_sidelines(
+                top_line, bot_line, self.resample_step)
+            resampled_bot_line = resampled_bot_line[::-1]
+            center_line = (resampled_top_line + resampled_bot_line) / 2
+
+            if self.vector_slope(center_line[-1] - center_line[0]) > 2:
+                if (center_line[-1] - center_line[0])[1] < 0:
+                    center_line = center_line[::-1]
+                    resampled_top_line = resampled_top_line[::-1]
+                    resampled_bot_line = resampled_bot_line[::-1]
+            else:
+                if (center_line[-1] - center_line[0])[0] < 0:
+                    center_line = center_line[::-1]
+                    resampled_top_line = resampled_top_line[::-1]
+                    resampled_bot_line = resampled_bot_line[::-1]
+
+            line_head_shrink_len = np.clip(
+                (norm(top_line[0] - bot_line[0]) * self.comp_w_h_ratio),
+                self.min_width, self.max_width) / 2
+            line_tail_shrink_len = np.clip(
+                (norm(top_line[-1] - bot_line[-1]) * self.comp_w_h_ratio),
+                self.min_width, self.max_width) / 2
+            num_head_shrink = int(line_head_shrink_len // self.resample_step)
+            num_tail_shrink = int(line_tail_shrink_len // self.resample_step)
+            if len(center_line) > num_head_shrink + num_tail_shrink + 2:
+                center_line = center_line[num_head_shrink:len(center_line) -
+                                          num_tail_shrink]
+                resampled_top_line = resampled_top_line[
+                    num_head_shrink:len(resampled_top_line) - num_tail_shrink]
+                resampled_bot_line = resampled_bot_line[
+                    num_head_shrink:len(resampled_bot_line) - num_tail_shrink]
+            center_lines.append(center_line.astype(np.int32))
+
+            self._draw_center_region_maps(resampled_top_line,
+                                          resampled_bot_line, center_line,
+                                          center_region_mask, top_height_map,
+                                          bot_height_map, sin_map, cos_map,
+                                          self.center_region_shrink_ratio)
+
+        return (center_lines, center_region_mask, top_height_map,
+                bot_height_map, sin_map, cos_map)
+
+    def _generate_comp_attribs(self, center_lines: List[ndarray],
+                               text_mask: ndarray, center_region_mask: ndarray,
+                               top_height_map: ndarray,
+                               bot_height_map: ndarray, sin_map: ndarray,
+                               cos_map: ndarray) -> ndarray:
+        """Generate text component attributes.
+
+        Args:
+            center_lines (list[ndarray]): The list of text center lines .
+            text_mask (ndarray): The text region mask.
+            center_region_mask (ndarray): The text center region mask.
+            top_height_map (ndarray): The map on which the distance from points
+                to top side lines will be drawn for each pixel in text center
+                regions.
+            bot_height_map (ndarray): The map on which the distance from points
+                to bottom side lines will be drawn for each pixel in text
+                center regions.
+            sin_map (ndarray): The sin(theta) map where theta is the angle
+                between vector (top point - bottom point) and vector (1, 0).
+            cos_map (ndarray): The cos(theta) map where theta is the angle
+                between vector (top point - bottom point) and vector (1, 0).
+
+        Returns:
+            ndarray: The padded text component attributes of a fixed size.
+        """
+
+        assert isinstance(center_lines, list)
+        assert (text_mask.shape == center_region_mask.shape ==
+                top_height_map.shape == bot_height_map.shape == sin_map.shape
+                == cos_map.shape)
+
+        center_lines_mask = np.zeros_like(center_region_mask)
+        cv2.polylines(center_lines_mask, center_lines, 0, 1, 1)
+        center_lines_mask = center_lines_mask * center_region_mask
+        comp_centers = np.argwhere(center_lines_mask > 0)
+
+        y = comp_centers[:, 0]
+        x = comp_centers[:, 1]
+
+        top_height = top_height_map[y, x].reshape(
+            (-1, 1)) * self.comp_shrink_ratio
+        bot_height = bot_height_map[y, x].reshape(
+            (-1, 1)) * self.comp_shrink_ratio
+        sin = sin_map[y, x].reshape((-1, 1))
+        cos = cos_map[y, x].reshape((-1, 1))
+
+        top_mid_points = comp_centers + np.hstack(
+            [top_height * sin, top_height * cos])
+        bot_mid_points = comp_centers - np.hstack(
+            [bot_height * sin, bot_height * cos])
+
+        width = (top_height + bot_height) * self.comp_w_h_ratio
+        width = np.clip(width, self.min_width, self.max_width)
+        r = width / 2
+
+        tl = top_mid_points[:, ::-1] - np.hstack([-r * sin, r * cos])
+        tr = top_mid_points[:, ::-1] + np.hstack([-r * sin, r * cos])
+        br = bot_mid_points[:, ::-1] + np.hstack([-r * sin, r * cos])
+        bl = bot_mid_points[:, ::-1] - np.hstack([-r * sin, r * cos])
+        text_comps = np.hstack([tl, tr, br, bl]).astype(np.float32)
+
+        score = np.ones((text_comps.shape[0], 1), dtype=np.float32)
+        text_comps = np.hstack([text_comps, score])
+        if la_nms is None:
+            raise ImportError('lanms-neo is not installed, '
+                              'please run "pip install lanms-neo==1.0.2".')
+        text_comps = la_nms(text_comps, self.text_comp_nms_thr)
+
+        if text_comps.shape[0] >= 1:
+            img_h, img_w = center_region_mask.shape
+            text_comps[:, 0:8:2] = np.clip(text_comps[:, 0:8:2], 0, img_w - 1)
+            text_comps[:, 1:8:2] = np.clip(text_comps[:, 1:8:2], 0, img_h - 1)
+
+            comp_centers = np.mean(
+                text_comps[:, 0:8].reshape((-1, 4, 2)),
+                axis=1).astype(np.int32)
+            x = comp_centers[:, 0]
+            y = comp_centers[:, 1]
+
+            height = (top_height_map[y, x] + bot_height_map[y, x]).reshape(
+                (-1, 1))
+            width = np.clip(height * self.comp_w_h_ratio, self.min_width,
+                            self.max_width)
+
+            cos = cos_map[y, x].reshape((-1, 1))
+            sin = sin_map[y, x].reshape((-1, 1))
+
+            _, comp_label_mask = cv2.connectedComponents(
+                center_region_mask, connectivity=8)
+            comp_labels = comp_label_mask[y, x].reshape(
+                (-1, 1)).astype(np.float32)
+
+            x = x.reshape((-1, 1)).astype(np.float32)
+            y = y.reshape((-1, 1)).astype(np.float32)
+            comp_attribs = np.hstack(
+                [x, y, height, width, cos, sin, comp_labels])
+            comp_attribs = self._jitter_comp_attribs(comp_attribs,
+                                                     self.jitter_level)
+
+            if comp_attribs.shape[0] < self.num_min_comps:
+                num_rand_comps = self.num_min_comps - comp_attribs.shape[0]
+                rand_comp_attribs = self._generate_rand_comp_attribs(
+                    num_rand_comps, 1 - text_mask)
+                comp_attribs = np.vstack([comp_attribs, rand_comp_attribs])
+        else:
+            comp_attribs = self._generate_rand_comp_attribs(
+                self.num_min_comps, 1 - text_mask)
+
+        num_comps = (
+            np.ones((comp_attribs.shape[0], 1), dtype=np.float32) *
+            comp_attribs.shape[0])
+        comp_attribs = np.hstack([num_comps, comp_attribs])
+
+        if comp_attribs.shape[0] > self.num_max_comps:
+            comp_attribs = comp_attribs[:self.num_max_comps, :]
+            comp_attribs[:, 0] = self.num_max_comps
+
+        pad_comp_attribs = np.zeros(
+            (self.num_max_comps, comp_attribs.shape[1]), dtype=np.float32)
+        pad_comp_attribs[:comp_attribs.shape[0], :] = comp_attribs
+
+        return pad_comp_attribs
+
+    def _generate_rand_comp_attribs(self, num_rand_comps: int,
+                                    center_sample_mask: ndarray) -> ndarray:
+        """Generate random text components and their attributes to ensure the
+        the number of text components in an image is larger than k_hop1, which
+        is the number of one hop neighbors in KNN graph.
+
+        Args:
+            num_rand_comps (int): The number of random text components.
+            center_sample_mask (ndarray): The region mask for sampling text
+                component centers .
+
+        Returns:
+            ndarray: The random text component attributes
+            (x, y, h, w, cos, sin, comp_label=0).
+        """
+
+        assert isinstance(num_rand_comps, int)
+        assert num_rand_comps > 0
+        assert center_sample_mask.ndim == 2
+
+        h, w = center_sample_mask.shape
+
+        max_rand_half_height = self.max_rand_half_height
+        min_rand_half_height = self.min_rand_half_height
+        max_rand_height = max_rand_half_height * 2
+        max_rand_width = np.clip(max_rand_height * self.comp_w_h_ratio,
+                                 self.min_width, self.max_width)
+        margin = int(
+            np.sqrt((max_rand_height / 2)**2 + (max_rand_width / 2)**2)) + 1
+
+        if 2 * margin + 1 > min(h, w):
+
+            assert min(h, w) > (np.sqrt(2) * (self.min_width + 1))
+            max_rand_half_height = max(min(h, w) / 4, self.min_width / 2 + 1)
+            min_rand_half_height = max(max_rand_half_height / 4,
+                                       self.min_width / 2)
+
+            max_rand_height = max_rand_half_height * 2
+            max_rand_width = np.clip(max_rand_height * self.comp_w_h_ratio,
+                                     self.min_width, self.max_width)
+            margin = int(
+                np.sqrt((max_rand_height / 2)**2 +
+                        (max_rand_width / 2)**2)) + 1
+
+        inner_center_sample_mask = np.zeros_like(center_sample_mask)
+        inner_center_sample_mask[margin:h - margin, margin:w - margin] = \
+            center_sample_mask[margin:h - margin, margin:w - margin]
+        kernel_size = int(np.clip(max_rand_half_height, 7, 21))
+        inner_center_sample_mask = cv2.erode(
+            inner_center_sample_mask,
+            np.ones((kernel_size, kernel_size), np.uint8))
+
+        center_candidates = np.argwhere(inner_center_sample_mask > 0)
+        num_center_candidates = len(center_candidates)
+        sample_inds = np.random.choice(num_center_candidates, num_rand_comps)
+        rand_centers = center_candidates[sample_inds]
+
+        rand_top_height = np.random.randint(
+            min_rand_half_height,
+            max_rand_half_height,
+            size=(len(rand_centers), 1))
+        rand_bot_height = np.random.randint(
+            min_rand_half_height,
+            max_rand_half_height,
+            size=(len(rand_centers), 1))
+
+        rand_cos = 2 * np.random.random(size=(len(rand_centers), 1)) - 1
+        rand_sin = 2 * np.random.random(size=(len(rand_centers), 1)) - 1
+        scale = np.sqrt(1.0 / (rand_cos**2 + rand_sin**2 + 1e-8))
+        rand_cos = rand_cos * scale
+        rand_sin = rand_sin * scale
+
+        height = (rand_top_height + rand_bot_height)
+        width = np.clip(height * self.comp_w_h_ratio, self.min_width,
+                        self.max_width)
+
+        rand_comp_attribs = np.hstack([
+            rand_centers[:, ::-1], height, width, rand_cos, rand_sin,
+            np.zeros_like(rand_sin)
+        ]).astype(np.float32)
+
+        return rand_comp_attribs
+
+    def _jitter_comp_attribs(self, comp_attribs: ndarray,
+                             jitter_level: float) -> ndarray:
+        """Jitter text components attributes.
+
+        Args:
+            comp_attribs (ndarray): The text component attributes.
+            jitter_level (float): The jitter level of text components
+                attributes.
+
+        Returns:
+            ndarray: The jittered text component
+            attributes (x, y, h, w, cos, sin, comp_label).
+        """
+
+        assert comp_attribs.shape[1] == 7
+        assert comp_attribs.shape[0] > 0
+        assert isinstance(jitter_level, float)
+
+        x = comp_attribs[:, 0].reshape((-1, 1))
+        y = comp_attribs[:, 1].reshape((-1, 1))
+        h = comp_attribs[:, 2].reshape((-1, 1))
+        w = comp_attribs[:, 3].reshape((-1, 1))
+        cos = comp_attribs[:, 4].reshape((-1, 1))
+        sin = comp_attribs[:, 5].reshape((-1, 1))
+        comp_labels = comp_attribs[:, 6].reshape((-1, 1))
+
+        x += (np.random.random(size=(len(comp_attribs), 1)) -
+              0.5) * (h * np.abs(cos) + w * np.abs(sin)) * jitter_level
+        y += (np.random.random(size=(len(comp_attribs), 1)) -
+              0.5) * (h * np.abs(sin) + w * np.abs(cos)) * jitter_level
+
+        h += (np.random.random(size=(len(comp_attribs), 1)) -
+              0.5) * h * jitter_level
+        w += (np.random.random(size=(len(comp_attribs), 1)) -
+              0.5) * w * jitter_level
+
+        cos += (np.random.random(size=(len(comp_attribs), 1)) -
+                0.5) * 2 * jitter_level
+        sin += (np.random.random(size=(len(comp_attribs), 1)) -
+                0.5) * 2 * jitter_level
+
+        scale = np.sqrt(1.0 / (cos**2 + sin**2 + 1e-8))
+        cos = cos * scale
+        sin = sin * scale
+
+        jittered_comp_attribs = np.hstack([x, y, h, w, cos, sin, comp_labels])
+
+        return jittered_comp_attribs
+
+    def _draw_center_region_maps(self, top_line: ndarray, bot_line: ndarray,
+                                 center_line: ndarray,
+                                 center_region_mask: ndarray,
+                                 top_height_map: ndarray,
+                                 bot_height_map: ndarray, sin_map: ndarray,
+                                 cos_map: ndarray,
+                                 region_shrink_ratio: float) -> None:
+        """Draw attributes of text components on text center regions.
+
+        Args:
+            top_line (ndarray): The points composing the top side lines of text
+                polygons.
+            bot_line (ndarray): The points composing bottom side lines of text
+                polygons.
+            center_line (ndarray): The points composing the center lines of
+                text instances.
+            center_region_mask (ndarray): The text center region mask.
+            top_height_map (ndarray): The map on which the distance from points
+                to top side lines will be drawn for each pixel in text center
+                regions.
+            bot_height_map (ndarray): The map on which the distance from points
+                to bottom side lines will be drawn for each pixel in text
+                center regions.
+            sin_map (ndarray): The map of vector_sin(top_point - bot_point)
+                that will be drawn on text center regions.
+            cos_map (ndarray): The map of vector_cos(top_point - bot_point)
+                will be drawn on text center regions.
+            region_shrink_ratio (float): The shrink ratio of text center
+                regions.
+        """
+
+        assert top_line.shape == bot_line.shape == center_line.shape
+        assert (center_region_mask.shape == top_height_map.shape ==
+                bot_height_map.shape == sin_map.shape == cos_map.shape)
+        assert isinstance(region_shrink_ratio, float)
+
+        h, w = center_region_mask.shape
+        for i in range(0, len(center_line) - 1):
+
+            top_mid_point = (top_line[i] + top_line[i + 1]) / 2
+            bot_mid_point = (bot_line[i] + bot_line[i + 1]) / 2
+
+            sin_theta = self.vector_sin(top_mid_point - bot_mid_point)
+            cos_theta = self.vector_cos(top_mid_point - bot_mid_point)
+
+            tl = center_line[i] + (top_line[i] -
+                                   center_line[i]) * region_shrink_ratio
+            tr = center_line[i + 1] + (
+                top_line[i + 1] - center_line[i + 1]) * region_shrink_ratio
+            br = center_line[i + 1] + (
+                bot_line[i + 1] - center_line[i + 1]) * region_shrink_ratio
+            bl = center_line[i] + (bot_line[i] -
+                                   center_line[i]) * region_shrink_ratio
+            current_center_box = np.vstack([tl, tr, br, bl]).astype(np.int32)
+
+            cv2.fillPoly(center_region_mask, [current_center_box], color=1)
+            cv2.fillPoly(sin_map, [current_center_box], color=sin_theta)
+            cv2.fillPoly(cos_map, [current_center_box], color=cos_theta)
+
+            current_center_box[:, 0] = np.clip(current_center_box[:, 0], 0,
+                                               w - 1)
+            current_center_box[:, 1] = np.clip(current_center_box[:, 1], 0,
+                                               h - 1)
+            min_coord = np.min(current_center_box, axis=0).astype(np.int32)
+            max_coord = np.max(current_center_box, axis=0).astype(np.int32)
+            current_center_box = current_center_box - min_coord
+            box_sz = (max_coord - min_coord + 1)
+
+            center_box_mask = np.zeros((box_sz[1], box_sz[0]), dtype=np.uint8)
+            cv2.fillPoly(center_box_mask, [current_center_box], color=1)
+
+            inds = np.argwhere(center_box_mask > 0)
+            inds = inds + (min_coord[1], min_coord[0])
+            inds_xy = np.fliplr(inds)
+            top_height_map[(inds[:, 0], inds[:, 1])] = self._dist_point2line(
+                inds_xy, (top_line[i], top_line[i + 1]))
+            bot_height_map[(inds[:, 0], inds[:, 1])] = self._dist_point2line(
+                inds_xy, (bot_line[i], bot_line[i + 1]))
+
+    def _dist_point2line(self, point: ndarray,
+                         line: Tuple[ndarray, ndarray]) -> ndarray:
+        """Calculate the distance from points to a line.
+
+        TODO: Check its mergibility with the one in mmocr.utils.point_utils.
+        """
+
+        assert isinstance(line, tuple)
+        point1, point2 = line
+        d = abs(np.cross(point2 - point1, point - point1)) / (
+            norm(point2 - point1) + 1e-8)
+        return d
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/fce_module_loss.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/fce_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..c833c17787c3584605f83b04b0394e10ac7f14d5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/fce_module_loss.py
@@ -0,0 +1,563 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence, Tuple, Union
+
+import cv2
+import numpy as np
+import torch
+from mmdet.models.utils import multi_apply
+from numpy.fft import fft
+from numpy.linalg import norm
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils.typing_utils import ArrayLike
+from .textsnake_module_loss import TextSnakeModuleLoss
+
+
+@MODELS.register_module()
+class FCEModuleLoss(TextSnakeModuleLoss):
+    """The class for implementing FCENet loss.
+
+    FCENet(CVPR2021): `Fourier Contour Embedding for Arbitrary-shaped Text
+    Detection <https://arxiv.org/abs/2104.10442>`_
+
+    Args:
+        fourier_degree (int) : The maximum Fourier transform degree k.
+        num_sample (int) : The sampling points number of regression
+            loss. If it is too small, fcenet tends to be overfitting.
+        negative_ratio (float or int): Maximum ratio of negative
+            samples to positive ones in OHEM. Defaults to 3.
+        resample_step (float): The step size for resampling the text center
+            line (TCL). It's better not to exceed half of the minimum width.
+        center_region_shrink_ratio (float): The shrink ratio of text center
+            region.
+        level_size_divisors (tuple(int)): The downsample ratio on each level.
+        level_proportion_range (tuple(tuple(int))): The range of text sizes
+            assigned to each level.
+        loss_tr (dict) : The loss config used to calculate the text region
+            loss. Defaults to dict(type='MaskedBalancedBCELoss').
+        loss_tcl (dict) : The loss config used to calculate the text center
+            line loss. Defaults to dict(type='MaskedBCELoss').
+        loss_reg_x (dict) : The loss config used to calculate the regression
+            loss on x axis. Defaults to dict(type='MaskedSmoothL1Loss').
+        loss_reg_y (dict) : The loss config used to calculate the regression
+            loss on y axis. Defaults to dict(type='MaskedSmoothL1Loss').
+    """
+
+    def __init__(
+        self,
+        fourier_degree: int,
+        num_sample: int,
+        negative_ratio: Union[float, int] = 3.,
+        resample_step: float = 4.0,
+        center_region_shrink_ratio: float = 0.3,
+        level_size_divisors: Tuple[int] = (8, 16, 32),
+        level_proportion_range: Tuple[Tuple[int]] = ((0, 0.4), (0.3, 0.7),
+                                                     (0.6, 1.0)),
+        loss_tr: Dict = dict(type='MaskedBalancedBCELoss'),
+        loss_tcl: Dict = dict(type='MaskedBCELoss'),
+        loss_reg_x: Dict = dict(type='SmoothL1Loss', reduction='none'),
+        loss_reg_y: Dict = dict(type='SmoothL1Loss', reduction='none'),
+    ) -> None:
+        super().__init__()
+        self.fourier_degree = fourier_degree
+        self.num_sample = num_sample
+        self.resample_step = resample_step
+        self.center_region_shrink_ratio = center_region_shrink_ratio
+        self.level_size_divisors = level_size_divisors
+        self.level_proportion_range = level_proportion_range
+
+        loss_tr.update(negative_ratio=negative_ratio)
+        self.loss_tr = MODELS.build(loss_tr)
+        self.loss_tcl = MODELS.build(loss_tcl)
+        self.loss_reg_x = MODELS.build(loss_reg_x)
+        self.loss_reg_y = MODELS.build(loss_reg_y)
+
+    def forward(self, preds: Sequence[Dict],
+                data_samples: Sequence[TextDetDataSample]) -> Dict:
+        """Compute FCENet loss.
+
+        Args:
+            preds (list[dict]): A list of dict with keys of ``cls_res``,
+                ``reg_res`` corresponds to the classification result and
+                regression result computed from the input tensor with the
+                same index. They have the shapes of :math:`(N, C_{cls,i}, H_i,
+                W_i)` and :math: `(N, C_{out,i}, H_i, W_i)`.
+            data_samples (list[TextDetDataSample]): The data samples.
+
+        Returns:
+            dict: The dict for fcenet losses with loss_text, loss_center,
+                loss_reg_x and loss_reg_y.
+        """
+        assert isinstance(preds, list) and len(preds) == 3
+        p3_maps, p4_maps, p5_maps = self.get_targets(data_samples)
+        device = preds[0]['cls_res'].device
+        # to device
+        gts = [p3_maps.to(device), p4_maps.to(device), p5_maps.to(device)]
+
+        losses = multi_apply(self.forward_single, preds, gts)
+
+        loss_tr = torch.tensor(0., device=device).float()
+        loss_tcl = torch.tensor(0., device=device).float()
+        loss_reg_x = torch.tensor(0., device=device).float()
+        loss_reg_y = torch.tensor(0., device=device).float()
+
+        for idx, loss in enumerate(losses):
+            if idx == 0:
+                loss_tr += sum(loss)
+            elif idx == 1:
+                loss_tcl += sum(loss)
+            elif idx == 2:
+                loss_reg_x += sum(loss)
+            else:
+                loss_reg_y += sum(loss)
+
+        results = dict(
+            loss_text=loss_tr,
+            loss_center=loss_tcl,
+            loss_reg_x=loss_reg_x,
+            loss_reg_y=loss_reg_y,
+        )
+
+        return results
+
+    def forward_single(self, pred: torch.Tensor,
+                       gt: torch.Tensor) -> Sequence[torch.Tensor]:
+        """Compute loss for one feature level.
+
+        Args:
+            pred (dict): A dict with keys ``cls_res`` and ``reg_res``
+                corresponds to the classification result and regression result
+                from one feature level.
+            gt (Tensor): Ground truth for one feature level. Cls and reg
+                targets are concatenated along the channel dimension.
+
+        Returns:
+            list[Tensor]: A list of losses for each feature level.
+        """
+        assert isinstance(pred, dict) and isinstance(gt, torch.Tensor)
+        cls_pred = pred['cls_res'].permute(0, 2, 3, 1).contiguous()
+        reg_pred = pred['reg_res'].permute(0, 2, 3, 1).contiguous()
+
+        gt = gt.permute(0, 2, 3, 1).contiguous()
+
+        k = 2 * self.fourier_degree + 1
+        tr_pred = cls_pred[:, :, :, :2].view(-1, 2)
+        tcl_pred = cls_pred[:, :, :, 2:].view(-1, 2)
+        x_pred = reg_pred[:, :, :, 0:k].view(-1, k)
+        y_pred = reg_pred[:, :, :, k:2 * k].view(-1, k)
+
+        tr_mask = gt[:, :, :, :1].view(-1)
+        tcl_mask = gt[:, :, :, 1:2].view(-1)
+        train_mask = gt[:, :, :, 2:3].view(-1)
+        x_map = gt[:, :, :, 3:3 + k].view(-1, k)
+        y_map = gt[:, :, :, 3 + k:].view(-1, k)
+
+        tr_train_mask = (train_mask * tr_mask).float()
+        # text region loss
+        loss_tr = self.loss_tr(tr_pred.softmax(-1)[:, 1], tr_mask, train_mask)
+
+        # text center line loss
+        tr_neg_mask = 1 - tr_train_mask
+        loss_tcl_positive = self.loss_center(
+            tcl_pred.softmax(-1)[:, 1], tcl_mask, tr_train_mask)
+        loss_tcl_negative = self.loss_center(
+            tcl_pred.softmax(-1)[:, 1], tcl_mask, tr_neg_mask)
+        loss_tcl = loss_tcl_positive + 0.5 * loss_tcl_negative
+
+        # regression loss
+        loss_reg_x = torch.tensor(0.).float().to(x_pred.device)
+        loss_reg_y = torch.tensor(0.).float().to(x_pred.device)
+        if tr_train_mask.sum().item() > 0:
+            weight = (tr_mask[tr_train_mask.bool()].float() +
+                      tcl_mask[tr_train_mask.bool()].float()) / 2
+            weight = weight.contiguous().view(-1, 1)
+
+            ft_x, ft_y = self._fourier2poly(x_map, y_map)
+            ft_x_pre, ft_y_pre = self._fourier2poly(x_pred, y_pred)
+
+            loss_reg_x = torch.mean(weight * self.loss_reg_x(
+                ft_x_pre[tr_train_mask.bool()], ft_x[tr_train_mask.bool()]))
+            loss_reg_y = torch.mean(weight * self.loss_reg_x(
+                ft_y_pre[tr_train_mask.bool()], ft_y[tr_train_mask.bool()]))
+
+        return loss_tr, loss_tcl, loss_reg_x, loss_reg_y
+
+    def get_targets(self, data_samples: List[TextDetDataSample]) -> Tuple:
+        """Generate loss targets for fcenet from data samples.
+
+        Args:
+            data_samples (list(TextDetDataSample)): Ground truth data samples.
+
+        Returns:
+            tuple[Tensor]: A tuple of three tensors from three different
+                feature level as FCENet targets.
+        """
+        p3_maps, p4_maps, p5_maps = multi_apply(self._get_target_single,
+                                                data_samples)
+        p3_maps = torch.cat(p3_maps, 0)
+        p4_maps = torch.cat(p4_maps, 0)
+        p5_maps = torch.cat(p5_maps, 0)
+
+        return p3_maps, p4_maps, p5_maps
+
+    def _get_target_single(self, data_sample: TextDetDataSample) -> Tuple:
+        """Generate loss target for fcenet from a data sample.
+
+        Args:
+            data_sample (TextDetDataSample): The data sample.
+
+        Returns:
+            tuple[Tensor]: A tuple of three tensors from three different
+            feature level as the targets of one prediction.
+        """
+        img_size = data_sample.img_shape[:2]
+        text_polys = data_sample.gt_instances.polygons
+        ignore_flags = data_sample.gt_instances.ignored
+
+        p3_map, p4_map, p5_map = self._generate_level_targets(
+            img_size, text_polys, ignore_flags)
+        # to tesnor
+        p3_map = torch.from_numpy(p3_map).unsqueeze(0).float()
+        p4_map = torch.from_numpy(p4_map).unsqueeze(0).float()
+        p5_map = torch.from_numpy(p5_map).unsqueeze(0).float()
+        return p3_map, p4_map, p5_map
+
+    def _generate_level_targets(self,
+                                img_size: Tuple[int, int],
+                                text_polys: List[ArrayLike],
+                                ignore_flags: Optional[torch.BoolTensor] = None
+                                ) -> Tuple[torch.Tensor]:
+        """Generate targets for one feature level.
+
+        Args:
+            img_size (tuple(int, int)): The image size of (height, width).
+            text_polys (List[ndarray]): 2D array of text polygons.
+            ignore_flags (torch.BoolTensor, optional): Indicate whether the
+                corresponding text polygon is ignored. Defaults to None.
+
+        Returns:
+            tuple[Tensor]: A tuple of three tensors from one feature level
+            as the targets.
+        """
+        h, w = img_size
+        lv_size_divs = self.level_size_divisors
+        lv_proportion_range = self.level_proportion_range
+
+        lv_size_divs = self.level_size_divisors
+        lv_proportion_range = self.level_proportion_range
+        lv_text_polys = [[] for i in range(len(lv_size_divs))]
+        lv_ignore_polys = [[] for i in range(len(lv_size_divs))]
+        level_maps = []
+
+        for poly_ind, poly in enumerate(text_polys):
+            poly = np.array(poly, dtype=np.int_).reshape((1, -1, 2))
+            _, _, box_w, box_h = cv2.boundingRect(poly)
+            proportion = max(box_h, box_w) / (h + 1e-8)
+
+            for ind, proportion_range in enumerate(lv_proportion_range):
+                if proportion_range[0] < proportion < proportion_range[1]:
+                    if ignore_flags is not None and ignore_flags[poly_ind]:
+                        lv_ignore_polys[ind].append(poly[0] /
+                                                    lv_size_divs[ind])
+                    else:
+                        lv_text_polys[ind].append(poly[0] / lv_size_divs[ind])
+
+        for ind, size_divisor in enumerate(lv_size_divs):
+            current_level_maps = []
+            level_img_size = (h // size_divisor, w // size_divisor)
+
+            text_region = self._generate_text_region_mask(
+                level_img_size, lv_text_polys[ind])[None]
+            current_level_maps.append(text_region)
+
+            center_region = self._generate_center_region_mask(
+                level_img_size, lv_text_polys[ind])[None]
+            current_level_maps.append(center_region)
+
+            effective_mask = self._generate_effective_mask(
+                level_img_size, lv_ignore_polys[ind])[None]
+            current_level_maps.append(effective_mask)
+
+            fourier_real_map, fourier_image_maps = self._generate_fourier_maps(
+                level_img_size, lv_text_polys[ind])
+            current_level_maps.append(fourier_real_map)
+            current_level_maps.append(fourier_image_maps)
+
+            level_maps.append(np.concatenate(current_level_maps))
+
+        return level_maps
+
+    def _generate_center_region_mask(self, img_size: Tuple[int, int],
+                                     text_polys: ArrayLike) -> np.ndarray:
+        """Generate text center region mask.
+
+        Args:
+            img_size (tuple): The image size of (height, width).
+            text_polys (list[ndarray]): The list of text polygons.
+
+        Returns:
+            ndarray: The text center region mask.
+        """
+
+        assert isinstance(img_size, tuple)
+
+        h, w = img_size
+
+        center_region_mask = np.zeros((h, w), np.uint8)
+
+        center_region_boxes = []
+        for poly in text_polys:
+            polygon_points = poly.reshape(-1, 2)
+            _, _, top_line, bot_line = self._reorder_poly_edge(polygon_points)
+            resampled_top_line, resampled_bot_line = self._resample_sidelines(
+                top_line, bot_line, self.resample_step)
+            resampled_bot_line = resampled_bot_line[::-1]
+            center_line = (resampled_top_line + resampled_bot_line) / 2
+
+            line_head_shrink_len = norm(resampled_top_line[0] -
+                                        resampled_bot_line[0]) / 4.0
+            line_tail_shrink_len = norm(resampled_top_line[-1] -
+                                        resampled_bot_line[-1]) / 4.0
+            head_shrink_num = int(line_head_shrink_len // self.resample_step)
+            tail_shrink_num = int(line_tail_shrink_len // self.resample_step)
+            if len(center_line) > head_shrink_num + tail_shrink_num + 2:
+                center_line = center_line[head_shrink_num:len(center_line) -
+                                          tail_shrink_num]
+                resampled_top_line = resampled_top_line[
+                    head_shrink_num:len(resampled_top_line) - tail_shrink_num]
+                resampled_bot_line = resampled_bot_line[
+                    head_shrink_num:len(resampled_bot_line) - tail_shrink_num]
+
+            for i in range(0, len(center_line) - 1):
+                tl = center_line[i] + (resampled_top_line[i] - center_line[i]
+                                       ) * self.center_region_shrink_ratio
+                tr = center_line[i + 1] + (
+                    resampled_top_line[i + 1] -
+                    center_line[i + 1]) * self.center_region_shrink_ratio
+                br = center_line[i + 1] + (
+                    resampled_bot_line[i + 1] -
+                    center_line[i + 1]) * self.center_region_shrink_ratio
+                bl = center_line[i] + (resampled_bot_line[i] - center_line[i]
+                                       ) * self.center_region_shrink_ratio
+                current_center_box = np.vstack([tl, tr, br,
+                                                bl]).astype(np.int32)
+                center_region_boxes.append(current_center_box)
+
+        cv2.fillPoly(center_region_mask, center_region_boxes, 1)
+        return center_region_mask
+
+    def _generate_fourier_maps(self, img_size: Tuple[int, int],
+                               text_polys: ArrayLike
+                               ) -> Tuple[np.ndarray, np.ndarray]:
+        """Generate Fourier coefficient maps.
+
+        Args:
+            img_size (tuple): The image size of (height, width).
+            text_polys (list[ndarray]): The list of text polygons.
+
+        Returns:
+            tuple(ndarray, ndarray):
+
+            - fourier_real_map (ndarray): The Fourier coefficient real part
+                maps.
+            - fourier_image_map (ndarray): The Fourier coefficient image part
+                maps.
+        """
+
+        assert isinstance(img_size, tuple)
+
+        h, w = img_size
+        k = self.fourier_degree
+        real_map = np.zeros((k * 2 + 1, h, w), dtype=np.float32)
+        imag_map = np.zeros((k * 2 + 1, h, w), dtype=np.float32)
+
+        for poly in text_polys:
+            mask = np.zeros((h, w), dtype=np.uint8)
+            polygon = np.array(poly).reshape((1, -1, 2))
+            cv2.fillPoly(mask, polygon.astype(np.int32), 1)
+            fourier_coeff = self._cal_fourier_signature(polygon[0], k)
+            for i in range(-k, k + 1):
+                if i != 0:
+                    real_map[i + k, :, :] = mask * fourier_coeff[i + k, 0] + (
+                        1 - mask) * real_map[i + k, :, :]
+                    imag_map[i + k, :, :] = mask * fourier_coeff[i + k, 1] + (
+                        1 - mask) * imag_map[i + k, :, :]
+                else:
+                    yx = np.argwhere(mask > 0.5)
+                    k_ind = np.ones((len(yx)), dtype=np.int64) * k
+                    y, x = yx[:, 0], yx[:, 1]
+                    real_map[k_ind, y, x] = fourier_coeff[k, 0] - x
+                    imag_map[k_ind, y, x] = fourier_coeff[k, 1] - y
+
+        return real_map, imag_map
+
+    def _cal_fourier_signature(self, polygon: ArrayLike,
+                               fourier_degree: int) -> np.ndarray:
+        """Calculate Fourier signature from input polygon.
+
+        Args:
+              polygon (list[ndarray]): The input polygon.
+              fourier_degree (int): The maximum Fourier degree K.
+        Returns:
+              ndarray: An array shaped (2k+1, 2) containing
+                  real part and image part of 2k+1 Fourier coefficients.
+        """
+        resampled_polygon = self._resample_polygon(polygon)
+        resampled_polygon = self._normalize_polygon(resampled_polygon)
+
+        fourier_coeff = self._poly2fourier(resampled_polygon, fourier_degree)
+        fourier_coeff = self._clockwise(fourier_coeff, fourier_degree)
+
+        real_part = np.real(fourier_coeff).reshape((-1, 1))
+        image_part = np.imag(fourier_coeff).reshape((-1, 1))
+        fourier_signature = np.hstack([real_part, image_part])
+
+        return fourier_signature
+
+    def _resample_polygon(self,
+                          polygon: ArrayLike,
+                          n: int = 400) -> np.ndarray:
+        """Resample one polygon with n points on its boundary.
+
+        Args:
+            polygon (list[ndarray]): The input polygon.
+            n (int): The number of resampled points. Defaults to 400.
+        Returns:
+            ndarray: The resampled polygon.
+        """
+        length = []
+
+        for i in range(len(polygon)):
+            p1 = polygon[i]
+            if i == len(polygon) - 1:
+                p2 = polygon[0]
+            else:
+                p2 = polygon[i + 1]
+            length.append(((p1[0] - p2[0])**2 + (p1[1] - p2[1])**2)**0.5)
+
+        total_length = sum(length)
+        n_on_each_line = (np.array(length) / (total_length + 1e-8)) * n
+        n_on_each_line = n_on_each_line.astype(np.int32)
+        new_polygon = []
+
+        for i in range(len(polygon)):
+            num = n_on_each_line[i]
+            p1 = polygon[i]
+            if i == len(polygon) - 1:
+                p2 = polygon[0]
+            else:
+                p2 = polygon[i + 1]
+
+            if num == 0:
+                continue
+
+            dxdy = (p2 - p1) / num
+            for j in range(num):
+                point = p1 + dxdy * j
+                new_polygon.append(point)
+
+        return np.array(new_polygon)
+
+    def _normalize_polygon(self, polygon: ArrayLike) -> np.ndarray:
+        """Normalize one polygon so that its start point is at right most.
+
+        Args:
+            polygon (list[ndarray]): The origin polygon.
+        Returns:
+            ndarray: The polygon with start point at right.
+        """
+        temp_polygon = polygon - polygon.mean(axis=0)
+        x = np.abs(temp_polygon[:, 0])
+        y = temp_polygon[:, 1]
+        index_x = np.argsort(x)
+        index_y = np.argmin(y[index_x[:8]])
+        index = index_x[index_y]
+        new_polygon = np.concatenate([polygon[index:], polygon[:index]])
+        return new_polygon
+
+    def _clockwise(self, fourier_coeff: np.ndarray,
+                   fourier_degree: int) -> np.ndarray:
+        """Make sure the polygon reconstructed from Fourier coefficients c in
+        the clockwise direction.
+
+        Args:
+            fourier_coeff (ndarray[complex]): The Fourier coefficients.
+            fourier_degree: The maximum Fourier degree K.
+        Returns:
+            lost[float]: The polygon in clockwise point order.
+        """
+        if np.abs(fourier_coeff[fourier_degree + 1]) > np.abs(
+                fourier_coeff[fourier_degree - 1]):
+            return fourier_coeff
+        elif np.abs(fourier_coeff[fourier_degree + 1]) < np.abs(
+                fourier_coeff[fourier_degree - 1]):
+            return fourier_coeff[::-1]
+        else:
+            if np.abs(fourier_coeff[fourier_degree + 2]) > np.abs(
+                    fourier_coeff[fourier_degree - 2]):
+                return fourier_coeff
+            else:
+                return fourier_coeff[::-1]
+
+    def _poly2fourier(self, polygon: ArrayLike,
+                      fourier_degree: int) -> np.ndarray:
+        """Perform Fourier transformation to generate Fourier coefficients ck
+        from polygon.
+
+        Args:
+            polygon (list[ndarray]): An input polygon.
+            fourier_degree (int): The maximum Fourier degree K.
+        Returns:
+            ndarray: Fourier coefficients.
+        """
+        points = polygon[:, 0] + polygon[:, 1] * 1j
+        c_fft = fft(points) / len(points)
+        c = np.hstack((c_fft[-fourier_degree:], c_fft[:fourier_degree + 1]))
+        return c
+
+    def _fourier2poly(self, real_maps: torch.Tensor,
+                      imag_maps: torch.Tensor) -> Sequence[torch.Tensor]:
+        """Transform Fourier coefficient maps to polygon maps.
+
+        Args:
+            real_maps (tensor): A map composed of the real parts of the
+                Fourier coefficients, whose shape is (-1, 2k+1)
+            imag_maps (tensor):A map composed of the imag parts of the
+                Fourier coefficients, whose shape is (-1, 2k+1)
+
+        Returns
+            tuple(tensor, tensor):
+
+            - x_maps (tensor): A map composed of the x value of the polygon
+                represented by n sample points (xn, yn), whose shape is (-1, n)
+            - y_maps (tensor): A map composed of the y value of the polygon
+                represented by n sample points (xn, yn), whose shape is (-1, n)
+        """
+
+        device = real_maps.device
+
+        k_vect = torch.arange(
+            -self.fourier_degree,
+            self.fourier_degree + 1,
+            dtype=torch.float,
+            device=device).view(-1, 1)
+        i_vect = torch.arange(
+            0, self.num_sample, dtype=torch.float, device=device).view(1, -1)
+
+        transform_matrix = 2 * np.pi / self.num_sample * torch.mm(
+            k_vect, i_vect)
+
+        x1 = torch.einsum('ak, kn-> an', real_maps,
+                          torch.cos(transform_matrix))
+        x2 = torch.einsum('ak, kn-> an', imag_maps,
+                          torch.sin(transform_matrix))
+        y1 = torch.einsum('ak, kn-> an', real_maps,
+                          torch.sin(transform_matrix))
+        y2 = torch.einsum('ak, kn-> an', imag_maps,
+                          torch.cos(transform_matrix))
+
+        x_maps = x1 - x2
+        y_maps = y1 + y2
+
+        return x_maps, y_maps
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/pan_module_loss.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/pan_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a5a6685aa9514f5d9afbfbe9b5a7fe4029ab96d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/pan_module_loss.py
@@ -0,0 +1,347 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, Sequence, Tuple, Union
+
+import numpy as np
+import torch
+import torch.nn.functional as F
+from mmdet.models.utils import multi_apply
+from torch import nn
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from .seg_based_module_loss import SegBasedModuleLoss
+
+
+@MODELS.register_module()
+class PANModuleLoss(SegBasedModuleLoss):
+    """The class for implementing PANet loss. This was partially adapted from
+    https://github.com/whai362/pan_pp.pytorch and
+    https://github.com/WenmuZhou/PAN.pytorch.
+
+    PANet: `Efficient and Accurate Arbitrary-
+    Shaped Text Detection with Pixel Aggregation Network
+    <https://arxiv.org/abs/1908.05900>`_.
+
+    Args:
+        loss_text (dict) The loss config for text map. Defaults to
+            dict(type='MaskedSquareDiceLoss').
+        loss_kernel (dict) The loss config for kernel map. Defaults to
+            dict(type='MaskedSquareDiceLoss').
+        loss_embedding (dict) The loss config for embedding map. Defaults to
+            dict(type='PANEmbLossV1').
+        weight_text (float): The weight of text loss. Defaults to 1.
+        weight_kernel (float): The weight of kernel loss. Defaults to 0.5.
+        weight_embedding (float): The weight of embedding loss.
+            Defaults to 0.25.
+        ohem_ratio (float): The negative/positive ratio in ohem. Defaults to 3.
+        shrink_ratio (tuple[float]) : The ratio of shrinking kernel. Defaults
+            to (1.0, 0.5).
+        max_shrink_dist (int or float): The maximum shrinking distance.
+            Defaults to 20.
+        reduction (str): The way to reduce the loss. Available options are
+            "mean" and "sum". Defaults to 'mean'.
+    """
+
+    def __init__(
+            self,
+            loss_text: Dict = dict(type='MaskedSquareDiceLoss'),
+            loss_kernel: Dict = dict(type='MaskedSquareDiceLoss'),
+            loss_embedding: Dict = dict(type='PANEmbLossV1'),
+            weight_text: float = 1.0,
+            weight_kernel: float = 0.5,
+            weight_embedding: float = 0.25,
+            ohem_ratio: Union[int, float] = 3,  # TODO Find a better name
+            shrink_ratio: Sequence[Union[int, float]] = (1.0, 0.5),
+            max_shrink_dist: Union[int, float] = 20,
+            reduction: str = 'mean') -> None:
+        super().__init__()
+        assert reduction in ['mean', 'sum'], "reduction must in ['mean','sum']"
+        self.weight_text = weight_text
+        self.weight_kernel = weight_kernel
+        self.weight_embedding = weight_embedding
+        self.shrink_ratio = shrink_ratio
+        self.ohem_ratio = ohem_ratio
+        self.reduction = reduction
+        self.max_shrink_dist = max_shrink_dist
+        self.loss_text = MODELS.build(loss_text)
+        self.loss_kernel = MODELS.build(loss_kernel)
+        self.loss_embedding = MODELS.build(loss_embedding)
+
+    def forward(self, preds: torch.Tensor,
+                data_samples: Sequence[TextDetDataSample]) -> Dict:
+        """Compute PAN loss.
+
+        Args:
+            preds (dict): Raw predictions from model with
+                shape :math:`(N, C, H, W)`.
+            data_samples (list[TextDetDataSample]): The data samples.
+
+        Returns:
+            dict: The dict for pan losses with loss_text, loss_kernel,
+            loss_aggregation and loss_discrimination.
+        """
+
+        gt_kernels, gt_masks = self.get_targets(data_samples)
+        target_size = gt_kernels.size()[2:]
+        preds = F.interpolate(preds, size=target_size, mode='bilinear')
+        pred_texts = preds[:, 0, :, :]
+        pred_kernels = preds[:, 1, :, :]
+        inst_embed = preds[:, 2:, :, :]
+        gt_kernels = gt_kernels.to(preds.device)
+        gt_masks = gt_masks.to(preds.device)
+
+        # compute embedding loss
+        loss_emb = self.loss_embedding(inst_embed, gt_kernels[0],
+                                       gt_kernels[1], gt_masks)
+        gt_kernels[gt_kernels <= 0.5] = 0
+        gt_kernels[gt_kernels > 0.5] = 1
+        # compute text loss
+        sampled_mask = self._ohem_batch(pred_texts.detach(), gt_kernels[0],
+                                        gt_masks)
+        pred_texts = torch.sigmoid(pred_texts)
+        loss_texts = self.loss_text(pred_texts, gt_kernels[0], sampled_mask)
+
+        # compute kernel loss
+        pred_kernels = torch.sigmoid(pred_kernels)
+        sampled_masks_kernel = (gt_kernels[0] > 0.5).float() * gt_masks
+        loss_kernels = self.loss_kernel(pred_kernels, gt_kernels[1],
+                                        sampled_masks_kernel)
+
+        losses = [loss_texts, loss_kernels, loss_emb]
+        if self.reduction == 'mean':
+            losses = [item.mean() for item in losses]
+        else:
+            losses = [item.sum() for item in losses]
+
+        results = dict()
+        results.update(
+            loss_text=self.weight_text * losses[0],
+            loss_kernel=self.weight_kernel * losses[1],
+            loss_embedding=self.weight_embedding * losses[2])
+        return results
+
+    def get_targets(
+        self,
+        data_samples: Sequence[TextDetDataSample],
+    ) -> Tuple[torch.Tensor, torch.Tensor]:
+        """Generate the gt targets for PANet.
+
+        Args:
+            results (dict): The input result dictionary.
+
+        Returns:
+            results (dict): The output result dictionary.
+        """
+        gt_kernels, gt_masks = multi_apply(self._get_target_single,
+                                           data_samples)
+        # gt_kernels: (N, kernel_number, H, W)->(kernel_number, N, H, W)
+        gt_kernels = torch.stack(gt_kernels, dim=0).permute(1, 0, 2, 3)
+        gt_masks = torch.stack(gt_masks, dim=0)
+        return gt_kernels, gt_masks
+
+    def _get_target_single(self, data_sample: TextDetDataSample
+                           ) -> Tuple[torch.Tensor, torch.Tensor]:
+        """Generate loss target from a data sample.
+
+        Args:
+            data_sample (TextDetDataSample): The data sample.
+
+        Returns:
+            tuple: A tuple of four tensors as the targets of one prediction.
+        """
+        gt_polygons = data_sample.gt_instances.polygons
+        gt_ignored = data_sample.gt_instances.ignored
+
+        gt_kernels = []
+        for ratio in self.shrink_ratio:
+            # TODO pass `gt_ignored` to `_generate_kernels`
+            gt_kernel, _ = self._generate_kernels(
+                data_sample.img_shape,
+                gt_polygons,
+                ratio,
+                ignore_flags=None,
+                max_shrink_dist=self.max_shrink_dist)
+            gt_kernels.append(gt_kernel)
+        gt_polygons_ignored = data_sample.gt_instances[gt_ignored].polygons
+        gt_mask = self._generate_effective_mask(data_sample.img_shape,
+                                                gt_polygons_ignored)
+
+        gt_kernels = np.stack(gt_kernels, axis=0)
+        gt_kernels = torch.from_numpy(gt_kernels).float()
+        gt_mask = torch.from_numpy(gt_mask).float()
+        return gt_kernels, gt_mask
+
+    def _ohem_batch(self, text_scores: torch.Tensor, gt_texts: torch.Tensor,
+                    gt_mask: torch.Tensor) -> torch.Tensor:
+        """OHEM sampling for a batch of imgs.
+
+        Args:
+            text_scores (Tensor): The text scores of size :math:`(H, W)`.
+            gt_texts (Tensor): The gt text masks of size :math:`(H, W)`.
+            gt_mask (Tensor): The gt effective mask of size :math:`(H, W)`.
+
+        Returns:
+            Tensor: The sampled mask of size :math:`(H, W)`.
+        """
+        assert isinstance(text_scores, torch.Tensor)
+        assert isinstance(gt_texts, torch.Tensor)
+        assert isinstance(gt_mask, torch.Tensor)
+        assert len(text_scores.shape) == 3
+        assert text_scores.shape == gt_texts.shape
+        assert gt_texts.shape == gt_mask.shape
+
+        sampled_masks = []
+        for i in range(text_scores.shape[0]):
+            sampled_masks.append(
+                self._ohem_single(text_scores[i], gt_texts[i], gt_mask[i]))
+
+        sampled_masks = torch.stack(sampled_masks)
+
+        return sampled_masks
+
+    def _ohem_single(self, text_score: torch.Tensor, gt_text: torch.Tensor,
+                     gt_mask: torch.Tensor) -> torch.Tensor:
+        """Sample the top-k maximal negative samples and all positive samples.
+
+        Args:
+            text_score (Tensor): The text score of size :math:`(H, W)`.
+            gt_text (Tensor): The ground truth text mask of size
+                :math:`(H, W)`.
+            gt_mask (Tensor): The effective region mask of size :math:`(H, W)`.
+
+        Returns:
+            Tensor: The sampled pixel mask of size :math:`(H, W)`.
+        """
+        assert isinstance(text_score, torch.Tensor)
+        assert isinstance(gt_text, torch.Tensor)
+        assert isinstance(gt_mask, torch.Tensor)
+        assert len(text_score.shape) == 2
+        assert text_score.shape == gt_text.shape
+        assert gt_text.shape == gt_mask.shape
+
+        pos_num = (int)(torch.sum(gt_text > 0.5).item()) - (int)(
+            torch.sum((gt_text > 0.5) * (gt_mask <= 0.5)).item())
+        neg_num = (int)(torch.sum(gt_text <= 0.5).item())
+        neg_num = (int)(min(pos_num * self.ohem_ratio, neg_num))
+
+        if pos_num == 0 or neg_num == 0:
+            warnings.warn('pos_num = 0 or neg_num = 0')
+            return gt_mask.bool()
+
+        neg_score = text_score[gt_text <= 0.5]
+        neg_score_sorted, _ = torch.sort(neg_score, descending=True)
+        threshold = neg_score_sorted[neg_num - 1]
+        sampled_mask = (((text_score >= threshold) + (gt_text > 0.5)) > 0) * (
+            gt_mask > 0.5)
+        return sampled_mask
+
+
+@MODELS.register_module()
+class PANEmbLossV1(nn.Module):
+    """The class for implementing EmbLossV1. This was partially adapted from
+    https://github.com/whai362/pan_pp.pytorch.
+
+    Args:
+        feature_dim (int): The dimension of the feature. Defaults to 4.
+        delta_aggregation (float): The delta for aggregation. Defaults to 0.5.
+        delta_discrimination (float): The delta for discrimination.
+            Defaults to 1.5.
+    """
+
+    def __init__(self,
+                 feature_dim: int = 4,
+                 delta_aggregation: float = 0.5,
+                 delta_discrimination: float = 1.5) -> None:
+        super().__init__()
+        self.feature_dim = feature_dim
+        self.delta_aggregation = delta_aggregation
+        self.delta_discrimination = delta_discrimination
+        self.weights = (1.0, 1.0)
+
+    def _forward_single(self, emb: torch.Tensor, instance: torch.Tensor,
+                        kernel: torch.Tensor,
+                        training_mask: torch.Tensor) -> torch.Tensor:
+        """Compute the loss for a single image.
+
+        Args:
+            emb (torch.Tensor): The embedding feature.
+            instance (torch.Tensor): The instance feature.
+            kernel (torch.Tensor): The kernel feature.
+            training_mask (torch.Tensor): The effective mask.
+        """
+        training_mask = (training_mask > 0.5).float()
+        kernel = (kernel > 0.5).float()
+        instance = instance * training_mask
+        instance_kernel = (instance * kernel).view(-1)
+        instance = instance.view(-1)
+        emb = emb.view(self.feature_dim, -1)
+
+        unique_labels, unique_ids = torch.unique(
+            instance_kernel, sorted=True, return_inverse=True)
+        num_instance = unique_labels.size(0)
+        if num_instance <= 1:
+            return 0
+
+        emb_mean = emb.new_zeros((self.feature_dim, num_instance),
+                                 dtype=torch.float32)
+        for i, lb in enumerate(unique_labels):
+            if lb == 0:
+                continue
+            ind_k = instance_kernel == lb
+            emb_mean[:, i] = torch.mean(emb[:, ind_k], dim=1)
+
+        l_agg = emb.new_zeros(num_instance, dtype=torch.float32)
+        for i, lb in enumerate(unique_labels):
+            if lb == 0:
+                continue
+            ind = instance == lb
+            emb_ = emb[:, ind]
+            dist = (emb_ - emb_mean[:, i:i + 1]).norm(p=2, dim=0)
+            dist = F.relu(dist - self.delta_aggregation)**2
+            l_agg[i] = torch.mean(torch.log(dist + 1.0))
+        l_agg = torch.mean(l_agg[1:])
+
+        if num_instance > 2:
+            emb_interleave = emb_mean.permute(1, 0).repeat(num_instance, 1)
+            emb_band = emb_mean.permute(1, 0).repeat(1, num_instance).view(
+                -1, self.feature_dim)
+
+            mask = (1 - torch.eye(num_instance, dtype=torch.int8)).view(
+                -1, 1).repeat(1, self.feature_dim)
+            mask = mask.view(num_instance, num_instance, -1)
+            mask[0, :, :] = 0
+            mask[:, 0, :] = 0
+            mask = mask.view(num_instance * num_instance, -1)
+
+            dist = emb_interleave - emb_band
+            dist = dist[mask > 0].view(-1, self.feature_dim).norm(p=2, dim=1)
+            dist = F.relu(2 * self.delta_discrimination - dist)**2
+            l_dis = torch.mean(torch.log(dist + 1.0))
+        else:
+            l_dis = 0
+
+        l_agg = self.weights[0] * l_agg
+        l_dis = self.weights[1] * l_dis
+        l_reg = torch.mean(torch.log(torch.norm(emb_mean, 2, 0) + 1.0)) * 0.001
+        loss = l_agg + l_dis + l_reg
+        return loss
+
+    def forward(self, emb: torch.Tensor, instance: torch.Tensor,
+                kernel: torch.Tensor,
+                training_mask: torch.Tensor) -> torch.Tensor:
+        """Compute the loss for a batch image.
+
+        Args:
+            emb (torch.Tensor): The embedding feature.
+            instance (torch.Tensor): The instance feature.
+            kernel (torch.Tensor): The kernel feature.
+            training_mask (torch.Tensor): The effective mask.
+        """
+        loss_batch = emb.new_zeros((emb.size(0)), dtype=torch.float32)
+
+        for i in range(loss_batch.size(0)):
+            loss_batch[i] = self._forward_single(emb[i], instance[i],
+                                                 kernel[i], training_mask[i])
+
+        return loss_batch
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/pse_module_loss.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/pse_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..902588c49cc642c059e86dc1a76c08658349295d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/pse_module_loss.py
@@ -0,0 +1,129 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Sequence, Tuple, Union
+
+import torch
+import torch.nn.functional as F
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from . import PANModuleLoss
+
+
+@MODELS.register_module()
+class PSEModuleLoss(PANModuleLoss):
+    """The class for implementing PSENet loss. This is partially adapted from
+    https://github.com/whai362/PSENet.
+
+    PSENet: `Shape Robust Text Detection with
+    Progressive Scale Expansion Network <https://arxiv.org/abs/1806.02559>`_.
+
+    Args:
+        weight_text (float): The weight of text loss. Defaults to 0.7.
+        weight_kernel (float): The weight of text kernel. Defaults to 0.3.
+        loss_text (dict): Loss type for text. Defaults to
+            dict('MaskedSquareDiceLoss').
+        loss_kernel (dict): Loss type for kernel. Defaults to
+            dict('MaskedSquareDiceLoss').
+        ohem_ratio (int or float): The negative/positive ratio in ohem.
+            Defaults to 3.
+        reduction (str): The way to reduce the loss. Defaults to 'mean'.
+            Options are 'mean' and 'sum'.
+        kernel_sample_type (str): The way to sample kernel. Defaults to
+            adaptive. Options are 'adaptive' and 'hard'.
+        shrink_ratio (tuple): The ratio for shirinking text instances.
+            Defaults to (1.0, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4).
+        max_shrink_dist (int or float): The maximum shrinking distance.
+            Defaults to 20.
+    """
+
+    def __init__(
+        self,
+        weight_text: float = 0.7,
+        weight_kernel: float = 0.3,
+        loss_text: Dict = dict(type='MaskedSquareDiceLoss'),
+        loss_kernel: Dict = dict(type='MaskedSquareDiceLoss'),
+        ohem_ratio: Union[int, float] = 3,
+        reduction: str = 'mean',
+        kernel_sample_type: str = 'adaptive',
+        shrink_ratio: Tuple[float] = (1.0, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4),
+        max_shrink_dist: Union[int, float] = 20,
+    ) -> None:
+        super().__init__()
+        assert reduction in ['mean', 'sum'
+                             ], "reduction must be either of ['mean','sum']"
+        assert kernel_sample_type in [
+            'adaptive', 'hard'
+        ], "kernel_sample_type must be either of ['hard', 'adaptive']"
+        self.weight_text = weight_text
+        self.weight_kernel = weight_kernel
+        self.ohem_ratio = ohem_ratio
+        self.reduction = reduction
+        self.shrink_ratio = shrink_ratio
+        self.kernel_sample_type = kernel_sample_type
+        self.max_shrink_dist = max_shrink_dist
+        self.loss_text = MODELS.build(loss_text)
+        self.loss_kernel = MODELS.build(loss_kernel)
+
+    def forward(self, preds: torch.Tensor,
+                data_samples: Sequence[TextDetDataSample]) -> Dict:
+        """Compute PSENet loss.
+
+        Args:
+            preds (torch.Tensor): Raw predictions from model with
+                shape :math:`(N, C, H, W)`.
+            data_samples (list[TextDetDataSample]): The data samples.
+
+        Returns:
+            dict: The dict for pse losses with loss_text, loss_kernel,
+            loss_aggregation and loss_discrimination.
+        """
+        losses = []
+
+        gt_kernels, gt_masks = self.get_targets(data_samples)
+        target_size = gt_kernels.size()[2:]
+        preds = F.interpolate(preds, size=target_size, mode='bilinear')
+        pred_texts = preds[:, 0, :, :]
+        pred_kernels = preds[:, 1:, :, :]
+
+        gt_kernels = gt_kernels.to(preds.device)
+        gt_kernels[gt_kernels <= 0.5] = 0
+        gt_kernels[gt_kernels > 0.5] = 1
+        gt_masks = gt_masks.to(preds.device)
+
+        # compute text loss
+        sampled_mask = self._ohem_batch(pred_texts.detach(), gt_kernels[0],
+                                        gt_masks)
+        loss_texts = self.loss_text(pred_texts.sigmoid(), gt_kernels[0],
+                                    sampled_mask)
+        losses.append(self.weight_text * loss_texts)
+
+        # compute kernel loss
+        if self.kernel_sample_type == 'hard':
+            sampled_masks_kernel = (gt_kernels[0] >
+                                    0.5).float() * gt_masks.float()
+        elif self.kernel_sample_type == 'adaptive':
+            sampled_masks_kernel = (pred_texts > 0).float() * (
+                gt_masks.float())
+        else:
+            raise NotImplementedError
+
+        num_kernel = pred_kernels.shape[1]
+        assert num_kernel == len(gt_kernels) - 1
+        loss_list = []
+        for idx in range(num_kernel):
+            loss_kernels = self.loss_kernel(
+                pred_kernels[:, idx, :, :].sigmoid(), gt_kernels[1 + idx],
+                sampled_masks_kernel)
+            loss_list.append(loss_kernels)
+
+        losses.append(self.weight_kernel * sum(loss_list) / len(loss_list))
+
+        if self.reduction == 'mean':
+            losses = [item.mean() for item in losses]
+        elif self.reduction == 'sum':
+            losses = [item.sum() for item in losses]
+        else:
+            raise NotImplementedError
+
+        results = dict(loss_text=losses[0], loss_kernel=losses[1])
+        return results
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/seg_based_module_loss.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/seg_based_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..2f2166921a1a31e9cbe1bfb0be7b8a9d2252b3d4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/seg_based_module_loss.py
@@ -0,0 +1,100 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import sys
+from typing import Optional, Sequence, Tuple, Union
+
+import cv2
+import numpy as np
+import torch
+from mmengine.logging import MMLogger
+from shapely.geometry import Polygon
+
+from mmocr.utils.polygon_utils import offset_polygon
+from .base import BaseTextDetModuleLoss
+
+
+class SegBasedModuleLoss(BaseTextDetModuleLoss):
+    """Base class for the module loss of segmentation-based text detection
+    algorithms with some handy utilities."""
+
+    def _generate_kernels(
+        self,
+        img_size: Tuple[int, int],
+        text_polys: Sequence[np.ndarray],
+        shrink_ratio: float,
+        max_shrink_dist: Union[float, int] = sys.maxsize,
+        ignore_flags: Optional[torch.Tensor] = None
+    ) -> Tuple[np.ndarray, np.ndarray]:
+        """Generate text instance kernels according to a shrink ratio.
+
+        Args:
+            img_size (tuple(int, int)): The image size of (height, width).
+            text_polys (Sequence[np.ndarray]): 2D array of text polygons.
+            shrink_ratio (float or int): The shrink ratio of kernel.
+            max_shrink_dist (float or int): The maximum shrinking distance.
+            ignore_flags (torch.BoolTensor, optional): Indicate whether the
+                corresponding text polygon is ignored. Defaults to None.
+
+        Returns:
+            tuple(ndarray, ndarray): The text instance kernels of shape
+                (height, width) and updated ignorance flags.
+        """
+        assert isinstance(img_size, tuple)
+        assert isinstance(shrink_ratio, (float, int))
+
+        logger: MMLogger = MMLogger.get_current_instance()
+
+        h, w = img_size
+        text_kernel = np.zeros((h, w), dtype=np.float32)
+
+        for text_ind, poly in enumerate(text_polys):
+            if ignore_flags is not None and ignore_flags[text_ind]:
+                continue
+            poly = poly.reshape(-1, 2).astype(np.int32)
+            poly_obj = Polygon(poly)
+            area = poly_obj.area
+            peri = poly_obj.length
+            distance = min(
+                int(area * (1 - shrink_ratio * shrink_ratio) / (peri + 0.001) +
+                    0.5), max_shrink_dist)
+            shrunk_poly = offset_polygon(poly, -distance)
+
+            if len(shrunk_poly) == 0:
+                if ignore_flags is not None:
+                    ignore_flags[text_ind] = True
+                continue
+
+            try:
+                shrunk_poly = shrunk_poly.reshape(-1, 2)
+            except Exception as e:
+                logger.info(f'{shrunk_poly} with error {e}')
+                if ignore_flags is not None:
+                    ignore_flags[text_ind] = True
+                continue
+
+            cv2.fillPoly(text_kernel, [shrunk_poly.astype(np.int32)],
+                         text_ind + 1)
+
+        return text_kernel, ignore_flags
+
+    def _generate_effective_mask(self, mask_size: Tuple[int, int],
+                                 ignored_polygons: Sequence[np.ndarray]
+                                 ) -> np.ndarray:
+        """Generate effective mask by setting the invalid regions to 0 and 1
+        otherwise.
+
+        Args:
+            mask_size (tuple(int, int)): The mask size.
+            ignored_polygons (Sequence[ndarray]): 2-d array, representing all
+                the ignored polygons of the text region.
+
+        Returns:
+            mask (ndarray): The effective mask of shape (height, width).
+        """
+
+        mask = np.ones(mask_size, dtype=np.uint8)
+
+        for poly in ignored_polygons:
+            instance = poly.astype(np.int32).reshape(1, -1, 2)
+            cv2.fillPoly(mask, instance, 0)
+
+        return mask
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/module_losses/textsnake_module_loss.py b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/textsnake_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..651a74755cf44e4103721b7416c6455bf0438f05
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/module_losses/textsnake_module_loss.py
@@ -0,0 +1,648 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Sequence, Tuple
+
+import cv2
+import numpy as np
+import torch
+from mmcv.image import impad, imrescale
+from mmdet.models.utils import multi_apply
+from numpy import ndarray
+from numpy.linalg import norm
+from torch import Tensor
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from .seg_based_module_loss import SegBasedModuleLoss
+
+
+@MODELS.register_module()
+class TextSnakeModuleLoss(SegBasedModuleLoss):
+    """The class for implementing TextSnake loss. This is partially adapted
+    from https://github.com/princewang1994/TextSnake.pytorch.
+
+    TextSnake: `A Flexible Representation for Detecting Text of Arbitrary
+    Shapes <https://arxiv.org/abs/1807.01544>`_.
+
+    Args:
+        ohem_ratio (float): The negative/positive ratio in ohem.
+        downsample_ratio (float): Downsample ratio. Defaults to 1.0. TODO:
+            remove it.
+        orientation_thr (float): The threshold for distinguishing between
+            head edge and tail edge among the horizontal and vertical edges
+            of a quadrangle.
+        resample_step (float): The step of resampling.
+        center_region_shrink_ratio (float): The shrink ratio of text center.
+        loss_text (dict): The loss config used to calculate the text loss.
+        loss_center (dict): The loss config used to calculate the center loss.
+        loss_radius (dict): The loss config used to calculate the radius loss.
+        loss_sin (dict): The loss config used to calculate the sin loss.
+        loss_cos (dict): The loss config used to calculate the cos loss.
+    """
+
+    def __init__(
+        self,
+        ohem_ratio: float = 3.0,
+        downsample_ratio: float = 1.0,
+        orientation_thr: float = 2.0,
+        resample_step: float = 4.0,
+        center_region_shrink_ratio: float = 0.3,
+        loss_text: Dict = dict(
+            type='MaskedBalancedBCEWithLogitsLoss',
+            fallback_negative_num=100,
+            eps=1e-5),
+        loss_center: Dict = dict(type='MaskedBCEWithLogitsLoss'),
+        loss_radius: Dict = dict(type='MaskedSmoothL1Loss'),
+        loss_sin: Dict = dict(type='MaskedSmoothL1Loss'),
+        loss_cos: Dict = dict(type='MaskedSmoothL1Loss')
+    ) -> None:
+        super().__init__()
+        self.ohem_ratio = ohem_ratio
+        self.downsample_ratio = downsample_ratio
+        self.orientation_thr = orientation_thr
+        self.resample_step = resample_step
+        self.center_region_shrink_ratio = center_region_shrink_ratio
+        self.eps = 1e-8
+        self.loss_text = MODELS.build(loss_text)
+        self.loss_center = MODELS.build(loss_center)
+        self.loss_radius = MODELS.build(loss_radius)
+        self.loss_sin = MODELS.build(loss_sin)
+        self.loss_cos = MODELS.build(loss_cos)
+
+    def _batch_pad(self, masks: List[ndarray],
+                   target_sz: Tuple[int, int]) -> ndarray:
+        """Pad the masks to the right and bottom side to the target size and
+        pack them into a batch.
+
+        Args:
+            mask (list[ndarray]): The masks to be padded.
+            target_sz (tuple(int, int)): The target tensor of size
+                :math:`(H, W)`.
+
+        Returns:
+            ndarray: A batch of padded mask.
+        """
+        batch = []
+        for mask in masks:
+            # H x W
+            mask_sz = mask.shape
+            # left, top, right, bottom
+            padding = (0, 0, target_sz[1] - mask_sz[1],
+                       target_sz[0] - mask_sz[0])
+            padded_mask = impad(
+                mask, padding=padding, padding_mode='constant', pad_val=0)
+            batch.append(np.expand_dims(padded_mask, axis=0))
+        return np.concatenate(batch)
+
+    def forward(self, preds: Tensor,
+                data_samples: Sequence[TextDetDataSample]) -> Dict:
+        """
+        Args:
+            preds (Tensor): The prediction map of shape
+                :math:`(N, 5, H, W)`, where each dimension is the map of
+                "text_region", "center_region", "sin_map", "cos_map", and
+                "radius_map" respectively.
+            data_samples (list[TextDetDataSample]): The data samples.
+
+        Returns:
+            dict:  A loss dict with ``loss_text``, ``loss_center``,
+            ``loss_radius``, ``loss_sin`` and ``loss_cos``.
+        """
+
+        (gt_text_masks, gt_masks, gt_center_region_masks, gt_radius_maps,
+         gt_sin_maps, gt_cos_maps) = self.get_targets(data_samples)
+
+        pred_text_region = preds[:, 0, :, :]
+        pred_center_region = preds[:, 1, :, :]
+        pred_sin_map = preds[:, 2, :, :]
+        pred_cos_map = preds[:, 3, :, :]
+        pred_radius_map = preds[:, 4, :, :]
+        feature_sz = preds.size()
+        device = preds.device
+
+        mapping = {
+            'gt_text_masks': gt_text_masks,
+            'gt_center_region_masks': gt_center_region_masks,
+            'gt_masks': gt_masks,
+            'gt_radius_maps': gt_radius_maps,
+            'gt_sin_maps': gt_sin_maps,
+            'gt_cos_maps': gt_cos_maps
+        }
+        gt = {}
+        for key, value in mapping.items():
+            gt[key] = value
+            if abs(self.downsample_ratio - 1.0) < 1e-2:
+                gt[key] = self._batch_pad(gt[key], feature_sz[2:])
+            else:
+                gt[key] = [
+                    imrescale(
+                        mask,
+                        scale=self.downsample_ratio,
+                        interpolation='nearest') for mask in gt[key]
+                ]
+                gt[key] = self._batch_pad(gt[key], feature_sz[2:])
+                if key == 'gt_radius_maps':
+                    gt[key] *= self.downsample_ratio
+            gt[key] = torch.from_numpy(gt[key]).float().to(device)
+
+        scale = torch.sqrt(1.0 / (pred_sin_map**2 + pred_cos_map**2 + 1e-8))
+        pred_sin_map = pred_sin_map * scale
+        pred_cos_map = pred_cos_map * scale
+
+        loss_text = self.loss_text(pred_text_region, gt['gt_text_masks'],
+                                   gt['gt_masks'])
+
+        text_mask = (gt['gt_text_masks'] * gt['gt_masks']).float()
+        loss_center = self.loss_center(pred_center_region,
+                                       gt['gt_center_region_masks'], text_mask)
+
+        center_mask = (gt['gt_center_region_masks'] * gt['gt_masks']).float()
+        map_sz = pred_radius_map.size()
+        ones = torch.ones(map_sz, dtype=torch.float, device=device)
+        loss_radius = self.loss_radius(
+            pred_radius_map / (gt['gt_radius_maps'] + 1e-2), ones, center_mask)
+        loss_sin = self.loss_sin(pred_sin_map, gt['gt_sin_maps'], center_mask)
+        loss_cos = self.loss_cos(pred_cos_map, gt['gt_cos_maps'], center_mask)
+
+        results = dict(
+            loss_text=loss_text,
+            loss_center=loss_center,
+            loss_radius=loss_radius,
+            loss_sin=loss_sin,
+            loss_cos=loss_cos)
+
+        return results
+
+    def get_targets(self, data_samples: List[TextDetDataSample]) -> Tuple:
+        """Generate loss targets from data samples.
+
+        Args:
+            data_samples (list(TextDetDataSample)): Ground truth data samples.
+
+        Returns:
+            tuple(gt_text_masks, gt_masks, gt_center_region_masks,
+            gt_radius_maps, gt_sin_maps, gt_cos_maps):
+            A tuple of six lists of ndarrays as the targets.
+        """
+        return multi_apply(self._get_target_single, data_samples)
+
+    def _get_target_single(self, data_sample: TextDetDataSample) -> Tuple:
+        """Generate loss target from a data sample.
+
+        Args:
+            data_sample (TextDetDataSample): The data sample.
+
+        Returns:
+            tuple(gt_text_mask, gt_mask, gt_center_region_mask, gt_radius_map,
+            gt_sin_map, gt_cos_map):
+            A tuple of six ndarrays as the targets of one prediction.
+        """
+
+        gt_instances = data_sample.gt_instances
+        ignore_flags = gt_instances.ignored
+
+        polygons = gt_instances[~ignore_flags].polygons
+        ignored_polygons = gt_instances[ignore_flags].polygons
+
+        gt_text_mask = self._generate_text_region_mask(data_sample.img_shape,
+                                                       polygons)
+        gt_mask = self._generate_effective_mask(data_sample.img_shape,
+                                                ignored_polygons)
+
+        (gt_center_region_mask, gt_radius_map, gt_sin_map,
+         gt_cos_map) = self._generate_center_mask_attrib_maps(
+             data_sample.img_shape, polygons)
+
+        return (gt_text_mask, gt_mask, gt_center_region_mask, gt_radius_map,
+                gt_sin_map, gt_cos_map)
+
+    def _generate_text_region_mask(self, img_size: Tuple[int, int],
+                                   text_polys: List[ndarray]) -> ndarray:
+        """Generate text center region mask and geometry attribute maps.
+
+        Args:
+            img_size (tuple): The image size (height, width).
+            text_polys (list[ndarray]): The list of text polygons.
+
+        Returns:
+            text_region_mask (ndarray): The text region mask.
+        """
+
+        assert isinstance(img_size, tuple)
+
+        text_region_mask = np.zeros(img_size, dtype=np.uint8)
+
+        for poly in text_polys:
+            polygon = np.array(poly, dtype=np.int32).reshape((1, -1, 2))
+            cv2.fillPoly(text_region_mask, polygon, 1)
+
+        return text_region_mask
+
+    def _generate_center_mask_attrib_maps(
+        self, img_size: Tuple[int, int], text_polys: List[ndarray]
+    ) -> Tuple[ndarray, ndarray, ndarray, ndarray]:
+        """Generate text center region mask and geometric attribute maps.
+
+        Args:
+            img_size (tuple(int, int)): The image size of (height, width).
+            text_polys (list[ndarray]): The list of text polygons.
+
+        Returns:
+            Tuple(center_region_mask, radius_map, sin_map, cos_map):
+
+            - center_region_mask (ndarray): The text center region mask.
+            - radius_map (ndarray): The distance map from each pixel in text
+              center region to top sideline.
+            - sin_map (ndarray): The sin(theta) map where theta is the angle
+              between vector (top point - bottom point) and vector (1, 0).
+            - cos_map (ndarray): The cos(theta) map where theta is the angle
+              between vector (top point - bottom point) and vector (1, 0).
+        """
+
+        assert isinstance(img_size, tuple)
+
+        center_region_mask = np.zeros(img_size, np.uint8)
+        radius_map = np.zeros(img_size, dtype=np.float32)
+        sin_map = np.zeros(img_size, dtype=np.float32)
+        cos_map = np.zeros(img_size, dtype=np.float32)
+
+        for poly in text_polys:
+            polygon_points = np.array(poly).reshape(-1, 2)
+
+            n = len(polygon_points)
+            keep_inds = []
+            for i in range(n):
+                if norm(polygon_points[i] -
+                        polygon_points[(i + 1) % n]) > 1e-5:
+                    keep_inds.append(i)
+            polygon_points = polygon_points[keep_inds]
+
+            _, _, top_line, bot_line = self._reorder_poly_edge(polygon_points)
+            resampled_top_line, resampled_bot_line = self._resample_sidelines(
+                top_line, bot_line, self.resample_step)
+            resampled_bot_line = resampled_bot_line[::-1]
+            center_line = (resampled_top_line + resampled_bot_line) / 2
+
+            if self.vector_slope(center_line[-1] - center_line[0]) > 0.9:
+                if (center_line[-1] - center_line[0])[1] < 0:
+                    center_line = center_line[::-1]
+                    resampled_top_line = resampled_top_line[::-1]
+                    resampled_bot_line = resampled_bot_line[::-1]
+            else:
+                if (center_line[-1] - center_line[0])[0] < 0:
+                    center_line = center_line[::-1]
+                    resampled_top_line = resampled_top_line[::-1]
+                    resampled_bot_line = resampled_bot_line[::-1]
+
+            line_head_shrink_len = norm(resampled_top_line[0] -
+                                        resampled_bot_line[0]) / 4.0
+            line_tail_shrink_len = norm(resampled_top_line[-1] -
+                                        resampled_bot_line[-1]) / 4.0
+            head_shrink_num = int(line_head_shrink_len // self.resample_step)
+            tail_shrink_num = int(line_tail_shrink_len // self.resample_step)
+
+            if len(center_line) > head_shrink_num + tail_shrink_num + 2:
+                center_line = center_line[head_shrink_num:len(center_line) -
+                                          tail_shrink_num]
+                resampled_top_line = resampled_top_line[
+                    head_shrink_num:len(resampled_top_line) - tail_shrink_num]
+                resampled_bot_line = resampled_bot_line[
+                    head_shrink_num:len(resampled_bot_line) - tail_shrink_num]
+
+            self._draw_center_region_maps(resampled_top_line,
+                                          resampled_bot_line, center_line,
+                                          center_region_mask, radius_map,
+                                          sin_map, cos_map,
+                                          self.center_region_shrink_ratio)
+
+        return center_region_mask, radius_map, sin_map, cos_map
+
+    def _reorder_poly_edge(self, points: ndarray
+                           ) -> Tuple[ndarray, ndarray, ndarray, ndarray]:
+        """Get the respective points composing head edge, tail edge, top
+        sideline and bottom sideline.
+
+        Args:
+            points (ndarray): The points composing a text polygon.
+
+        Returns:
+            Tuple(center_region_mask, radius_map, sin_map, cos_map):
+
+            - head_edge (ndarray): The two points composing the head edge of
+              text polygon.
+            - tail_edge (ndarray): The two points composing the tail edge of
+              text polygon.
+            - top_sideline (ndarray): The points composing top curved sideline
+              of text polygon.
+            - bot_sideline (ndarray): The points composing bottom curved
+              sideline of text polygon.
+        """
+
+        assert points.ndim == 2
+        assert points.shape[0] >= 4
+        assert points.shape[1] == 2
+
+        head_inds, tail_inds = self._find_head_tail(points,
+                                                    self.orientation_thr)
+        head_edge, tail_edge = points[head_inds], points[tail_inds]
+
+        pad_points = np.vstack([points, points])
+        if tail_inds[1] < 1:
+            tail_inds[1] = len(points)
+        sideline1 = pad_points[head_inds[1]:tail_inds[1]]
+        sideline2 = pad_points[tail_inds[1]:(head_inds[1] + len(points))]
+        sideline_mean_shift = np.mean(
+            sideline1, axis=0) - np.mean(
+                sideline2, axis=0)
+
+        if sideline_mean_shift[1] > 0:
+            top_sideline, bot_sideline = sideline2, sideline1
+        else:
+            top_sideline, bot_sideline = sideline1, sideline2
+
+        return head_edge, tail_edge, top_sideline, bot_sideline
+
+    def _find_head_tail(self, points: ndarray,
+                        orientation_thr: float) -> Tuple[List[int], List[int]]:
+        """Find the head edge and tail edge of a text polygon.
+
+        Args:
+            points (ndarray): The points composing a text polygon.
+            orientation_thr (float): The threshold for distinguishing between
+                head edge and tail edge among the horizontal and vertical edges
+                of a quadrangle.
+
+        Returns:
+            Tuple(head_inds, tail_inds):
+
+            - head_inds (list[int]): The indexes of two points composing head
+              edge.
+            - tail_inds (list[int]): The indexes of two points composing tail
+              edge.
+        """
+
+        assert points.ndim == 2
+        assert points.shape[0] >= 4
+        assert points.shape[1] == 2
+        assert isinstance(orientation_thr, float)
+
+        if len(points) > 4:
+            pad_points = np.vstack([points, points[0]])
+            edge_vec = pad_points[1:] - pad_points[:-1]
+
+            theta_sum = []
+            adjacent_vec_theta = []
+            for i, edge_vec1 in enumerate(edge_vec):
+                adjacent_ind = [x % len(edge_vec) for x in [i - 1, i + 1]]
+                adjacent_edge_vec = edge_vec[adjacent_ind]
+                temp_theta_sum = np.sum(
+                    self.vector_angle(edge_vec1, adjacent_edge_vec))
+                temp_adjacent_theta = self.vector_angle(
+                    adjacent_edge_vec[0], adjacent_edge_vec[1])
+                theta_sum.append(temp_theta_sum)
+                adjacent_vec_theta.append(temp_adjacent_theta)
+            theta_sum_score = np.array(theta_sum) / np.pi
+            adjacent_theta_score = np.array(adjacent_vec_theta) / np.pi
+            poly_center = np.mean(points, axis=0)
+            edge_dist = np.maximum(
+                norm(pad_points[1:] - poly_center, axis=-1),
+                norm(pad_points[:-1] - poly_center, axis=-1))
+            dist_score = edge_dist / (np.max(edge_dist) + self.eps)
+            position_score = np.zeros(len(edge_vec))
+            score = 0.5 * theta_sum_score + 0.15 * adjacent_theta_score
+            score += 0.35 * dist_score
+            if len(points) % 2 == 0:
+                position_score[(len(score) // 2 - 1)] += 1
+                position_score[-1] += 1
+            score += 0.1 * position_score
+            pad_score = np.concatenate([score, score])
+            score_matrix = np.zeros((len(score), len(score) - 3))
+            x = np.arange(len(score) - 3) / float(len(score) - 4)
+            gaussian = 1. / (np.sqrt(2. * np.pi) * 0.5) * np.exp(-np.power(
+                (x - 0.5) / 0.5, 2.) / 2)
+            gaussian = gaussian / np.max(gaussian)
+            for i in range(len(score)):
+                score_matrix[i, :] = score[i] + pad_score[
+                    (i + 2):(i + len(score) - 1)] * gaussian * 0.3
+
+            head_start, tail_increment = np.unravel_index(
+                score_matrix.argmax(), score_matrix.shape)
+            tail_start = (head_start + tail_increment + 2) % len(points)
+            head_end = (head_start + 1) % len(points)
+            tail_end = (tail_start + 1) % len(points)
+
+            if head_end > tail_end:
+                head_start, tail_start = tail_start, head_start
+                head_end, tail_end = tail_end, head_end
+            head_inds = [head_start, head_end]
+            tail_inds = [tail_start, tail_end]
+        else:
+            if self.vector_slope(points[1] - points[0]) + self.vector_slope(
+                    points[3] - points[2]) < self.vector_slope(
+                        points[2] - points[1]) + self.vector_slope(points[0] -
+                                                                   points[3]):
+                horizontal_edge_inds = [[0, 1], [2, 3]]
+                vertical_edge_inds = [[3, 0], [1, 2]]
+            else:
+                horizontal_edge_inds = [[3, 0], [1, 2]]
+                vertical_edge_inds = [[0, 1], [2, 3]]
+
+            vertical_len_sum = norm(points[vertical_edge_inds[0][0]] -
+                                    points[vertical_edge_inds[0][1]]) + norm(
+                                        points[vertical_edge_inds[1][0]] -
+                                        points[vertical_edge_inds[1][1]])
+            horizontal_len_sum = norm(
+                points[horizontal_edge_inds[0][0]] -
+                points[horizontal_edge_inds[0][1]]) + norm(
+                    points[horizontal_edge_inds[1][0]] -
+                    points[horizontal_edge_inds[1][1]])
+
+            if vertical_len_sum > horizontal_len_sum * orientation_thr:
+                head_inds = horizontal_edge_inds[0]
+                tail_inds = horizontal_edge_inds[1]
+            else:
+                head_inds = vertical_edge_inds[0]
+                tail_inds = vertical_edge_inds[1]
+
+        return head_inds, tail_inds
+
+    def _resample_line(self, line: ndarray, n: int) -> ndarray:
+        """Resample n points on a line.
+
+        Args:
+            line (ndarray): The points composing a line.
+            n (int): The resampled points number.
+
+        Returns:
+            resampled_line (ndarray): The points composing the resampled line.
+        """
+
+        assert line.ndim == 2
+        assert line.shape[0] >= 2
+        assert line.shape[1] == 2
+        assert isinstance(n, int)
+        assert n > 2
+
+        edges_length, total_length = self._cal_curve_length(line)
+        t_org = np.insert(np.cumsum(edges_length), 0, 0)
+        unit_t = total_length / (n - 1)
+        t_equidistant = np.arange(1, n - 1, dtype=np.float32) * unit_t
+        edge_ind = 0
+        points = [line[0]]
+        for t in t_equidistant:
+            while edge_ind < len(edges_length) - 1 and t > t_org[edge_ind + 1]:
+                edge_ind += 1
+            t_l, t_r = t_org[edge_ind], t_org[edge_ind + 1]
+            weight = np.array([t_r - t, t - t_l], dtype=np.float32) / (
+                t_r - t_l + self.eps)
+            p_coords = np.dot(weight, line[[edge_ind, edge_ind + 1]])
+            points.append(p_coords)
+        points.append(line[-1])
+        resampled_line = np.vstack(points)
+
+        return resampled_line
+
+    def _resample_sidelines(self, sideline1: ndarray, sideline2: ndarray,
+                            resample_step: float) -> Tuple[ndarray, ndarray]:
+        """Resample two sidelines to be of the same points number according to
+        step size.
+
+        Args:
+            sideline1 (ndarray): The points composing a sideline of a text
+                polygon.
+            sideline2 (ndarray): The points composing another sideline of a
+                text polygon.
+            resample_step (float): The resampled step size.
+
+        Returns:
+            Tuple(resampled_line1, resampled_line2):
+
+            - resampled_line1 (ndarray): The resampled line 1.
+            - resampled_line2 (ndarray): The resampled line 2.
+        """
+
+        assert sideline1.ndim == sideline2.ndim == 2
+        assert sideline1.shape[1] == sideline2.shape[1] == 2
+        assert sideline1.shape[0] >= 2
+        assert sideline2.shape[0] >= 2
+        assert isinstance(resample_step, float)
+
+        _, length1 = self._cal_curve_length(sideline1)
+        _, length2 = self._cal_curve_length(sideline2)
+
+        avg_length = (length1 + length2) / 2
+        resample_point_num = max(int(float(avg_length) / resample_step) + 1, 3)
+
+        resampled_line1 = self._resample_line(sideline1, resample_point_num)
+        resampled_line2 = self._resample_line(sideline2, resample_point_num)
+
+        return resampled_line1, resampled_line2
+
+    def _cal_curve_length(self, line: ndarray) -> Tuple[ndarray, float]:
+        """Calculate the length of each edge on the discrete curve and the sum.
+
+        Args:
+            line (ndarray): The points composing a discrete curve.
+
+        Returns:
+            Tuple(edges_length, total_length):
+
+            - edge_length (ndarray): The length of each edge on the
+              discrete curve.
+            - total_length (float): The total length of the discrete
+              curve.
+        """
+
+        assert line.ndim == 2
+        assert len(line) >= 2
+
+        edges_length = np.sqrt((line[1:, 0] - line[:-1, 0])**2 +
+                               (line[1:, 1] - line[:-1, 1])**2)
+        total_length = np.sum(edges_length)
+        return edges_length, total_length
+
+    def _draw_center_region_maps(self, top_line: ndarray, bot_line: ndarray,
+                                 center_line: ndarray,
+                                 center_region_mask: ndarray,
+                                 radius_map: ndarray, sin_map: ndarray,
+                                 cos_map: ndarray,
+                                 region_shrink_ratio: float) -> None:
+        """Draw attributes on text center region.
+
+        Args:
+            top_line (ndarray): The points composing top curved sideline of
+                text polygon.
+            bot_line (ndarray): The points composing bottom curved sideline
+                of text polygon.
+            center_line (ndarray): The points composing the center line of text
+                instance.
+            center_region_mask (ndarray): The text center region mask.
+            radius_map (ndarray): The map where the distance from point to
+                sidelines will be drawn on for each pixel in text center
+                region.
+            sin_map (ndarray): The map where vector_sin(theta) will be drawn
+                on text center regions. Theta is the angle between tangent
+                line and vector (1, 0).
+            cos_map (ndarray): The map where vector_cos(theta) will be drawn on
+                text center regions. Theta is the angle between tangent line
+                and vector (1, 0).
+            region_shrink_ratio (float): The shrink ratio of text center.
+        """
+
+        assert top_line.shape == bot_line.shape == center_line.shape
+        assert (center_region_mask.shape == radius_map.shape == sin_map.shape
+                == cos_map.shape)
+        assert isinstance(region_shrink_ratio, float)
+        for i in range(0, len(center_line) - 1):
+
+            top_mid_point = (top_line[i] + top_line[i + 1]) / 2
+            bot_mid_point = (bot_line[i] + bot_line[i + 1]) / 2
+            radius = norm(top_mid_point - bot_mid_point) / 2
+
+            text_direction = center_line[i + 1] - center_line[i]
+            sin_theta = self.vector_sin(text_direction)
+            cos_theta = self.vector_cos(text_direction)
+
+            tl = center_line[i] + (top_line[i] -
+                                   center_line[i]) * region_shrink_ratio
+            tr = center_line[i + 1] + (
+                top_line[i + 1] - center_line[i + 1]) * region_shrink_ratio
+            br = center_line[i + 1] + (
+                bot_line[i + 1] - center_line[i + 1]) * region_shrink_ratio
+            bl = center_line[i] + (bot_line[i] -
+                                   center_line[i]) * region_shrink_ratio
+            current_center_box = np.vstack([tl, tr, br, bl]).astype(np.int32)
+
+            cv2.fillPoly(center_region_mask, [current_center_box], color=1)
+            cv2.fillPoly(sin_map, [current_center_box], color=sin_theta)
+            cv2.fillPoly(cos_map, [current_center_box], color=cos_theta)
+            cv2.fillPoly(radius_map, [current_center_box], color=radius)
+
+    def vector_angle(self, vec1: ndarray, vec2: ndarray) -> ndarray:
+        """Compute the angle between two vectors."""
+        if vec1.ndim > 1:
+            unit_vec1 = vec1 / (norm(vec1, axis=-1) + self.eps).reshape(
+                (-1, 1))
+        else:
+            unit_vec1 = vec1 / (norm(vec1, axis=-1) + self.eps)
+        if vec2.ndim > 1:
+            unit_vec2 = vec2 / (norm(vec2, axis=-1) + self.eps).reshape(
+                (-1, 1))
+        else:
+            unit_vec2 = vec2 / (norm(vec2, axis=-1) + self.eps)
+        return np.arccos(
+            np.clip(np.sum(unit_vec1 * unit_vec2, axis=-1), -1.0, 1.0))
+
+    def vector_slope(self, vec: ndarray) -> float:
+        """Compute the slope of a vector."""
+        assert len(vec) == 2
+        return abs(vec[1] / (vec[0] + self.eps))
+
+    def vector_sin(self, vec: ndarray) -> float:
+        """Compute the sin of the angle between vector and x-axis."""
+        assert len(vec) == 2
+        return vec[1] / (norm(vec) + self.eps)
+
+    def vector_cos(self, vec: ndarray) -> float:
+        """Compute the cos of the angle between vector and x-axis."""
+        assert len(vec) == 2
+        return vec[0] / (norm(vec) + self.eps)
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/necks/__init__.py b/mmocr-dev-1.x/mmocr/models/textdet/necks/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..0b21bf192b93f8a09278989837f8b9b762052f7e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/necks/__init__.py
@@ -0,0 +1,7 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .fpem_ffm import FPEM_FFM
+from .fpn_cat import FPNC
+from .fpn_unet import FPN_UNet
+from .fpnf import FPNF
+
+__all__ = ['FPEM_FFM', 'FPNF', 'FPNC', 'FPN_UNet']
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/necks/fpem_ffm.py b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpem_ffm.py
new file mode 100644
index 0000000000000000000000000000000000000000..265fdaab674b29bba294a368e2a8683d1aa42da0
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpem_ffm.py
@@ -0,0 +1,202 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import torch
+import torch.nn.functional as F
+from mmengine.model import BaseModule, ModuleList
+from torch import nn
+
+from mmocr.registry import MODELS
+
+
+class FPEM(BaseModule):
+    """FPN-like feature fusion module in PANet.
+
+    Args:
+        in_channels (int): Number of input channels.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(self,
+                 in_channels: int = 128,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.up_add1 = SeparableConv2d(in_channels, in_channels, 1)
+        self.up_add2 = SeparableConv2d(in_channels, in_channels, 1)
+        self.up_add3 = SeparableConv2d(in_channels, in_channels, 1)
+        self.down_add1 = SeparableConv2d(in_channels, in_channels, 2)
+        self.down_add2 = SeparableConv2d(in_channels, in_channels, 2)
+        self.down_add3 = SeparableConv2d(in_channels, in_channels, 2)
+
+    def forward(self, c2: torch.Tensor, c3: torch.Tensor, c4: torch.Tensor,
+                c5: torch.Tensor) -> List[torch.Tensor]:
+        """
+        Args:
+            c2, c3, c4, c5 (Tensor): Each has the shape of
+                :math:`(N, C_i, H_i, W_i)`.
+
+        Returns:
+            list[Tensor]: A list of 4 tensors of the same shape as input.
+        """
+        # upsample
+        c4 = self.up_add1(self._upsample_add(c5, c4))  # c4 shape
+        c3 = self.up_add2(self._upsample_add(c4, c3))
+        c2 = self.up_add3(self._upsample_add(c3, c2))
+
+        # downsample
+        c3 = self.down_add1(self._upsample_add(c3, c2))
+        c4 = self.down_add2(self._upsample_add(c4, c3))
+        c5 = self.down_add3(self._upsample_add(c5, c4))  # c4 / 2
+        return c2, c3, c4, c5
+
+    def _upsample_add(self, x, y):
+        return F.interpolate(x, size=y.size()[2:]) + y
+
+
+class SeparableConv2d(BaseModule):
+    """Implementation of separable convolution, which is consisted of depthwise
+    convolution and pointwise convolution.
+
+    Args:
+        in_channels (int): Number of input channels.
+        out_channels (int): Number of output channels.
+        stride (int): Stride of the depthwise convolution.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 out_channels: int,
+                 stride: int = 1,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+
+        self.depthwise_conv = nn.Conv2d(
+            in_channels=in_channels,
+            out_channels=in_channels,
+            kernel_size=3,
+            padding=1,
+            stride=stride,
+            groups=in_channels)
+        self.pointwise_conv = nn.Conv2d(
+            in_channels=in_channels, out_channels=out_channels, kernel_size=1)
+        self.bn = nn.BatchNorm2d(out_channels)
+        self.relu = nn.ReLU()
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (Tensor): Input tensor.
+
+        Returns:
+            Tensor: Output tensor.
+        """
+        x = self.depthwise_conv(x)
+        x = self.pointwise_conv(x)
+        x = self.bn(x)
+        x = self.relu(x)
+        return x
+
+
+@MODELS.register_module()
+class FPEM_FFM(BaseModule):
+    """This code is from https://github.com/WenmuZhou/PAN.pytorch.
+
+    Args:
+        in_channels (list[int]): A list of 4 numbers of input channels.
+        conv_out (int): Number of output channels.
+        fpem_repeat (int): Number of FPEM layers before FFM operations.
+        align_corners (bool): The interpolation behaviour in FFM operation,
+            used in :func:`torch.nn.functional.interpolate`.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: List[int],
+        conv_out: int = 128,
+        fpem_repeat: int = 2,
+        align_corners: bool = False,
+        init_cfg: Optional[Union[Dict, List[Dict]]] = dict(
+            type='Xavier', layer='Conv2d', distribution='uniform')
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+        # reduce layers
+        self.reduce_conv_c2 = nn.Sequential(
+            nn.Conv2d(
+                in_channels=in_channels[0],
+                out_channels=conv_out,
+                kernel_size=1), nn.BatchNorm2d(conv_out), nn.ReLU())
+        self.reduce_conv_c3 = nn.Sequential(
+            nn.Conv2d(
+                in_channels=in_channels[1],
+                out_channels=conv_out,
+                kernel_size=1), nn.BatchNorm2d(conv_out), nn.ReLU())
+        self.reduce_conv_c4 = nn.Sequential(
+            nn.Conv2d(
+                in_channels=in_channels[2],
+                out_channels=conv_out,
+                kernel_size=1), nn.BatchNorm2d(conv_out), nn.ReLU())
+        self.reduce_conv_c5 = nn.Sequential(
+            nn.Conv2d(
+                in_channels=in_channels[3],
+                out_channels=conv_out,
+                kernel_size=1), nn.BatchNorm2d(conv_out), nn.ReLU())
+        self.align_corners = align_corners
+        self.fpems = ModuleList()
+        for _ in range(fpem_repeat):
+            self.fpems.append(FPEM(conv_out))
+
+    def forward(self, x: List[torch.Tensor]) -> Tuple[torch.Tensor]:
+        """
+        Args:
+            x (list[Tensor]): A list of four tensors of shape
+                :math:`(N, C_i, H_i, W_i)`, representing C2, C3, C4, C5
+                features respectively. :math:`C_i` should matches the number in
+                ``in_channels``.
+
+        Returns:
+            tuple[Tensor]: Four tensors of shape
+            :math:`(N, C_{out}, H_0, W_0)` where :math:`C_{out}` is
+            ``conv_out``.
+        """
+        c2, c3, c4, c5 = x
+        # reduce channel
+        c2 = self.reduce_conv_c2(c2)
+        c3 = self.reduce_conv_c3(c3)
+        c4 = self.reduce_conv_c4(c4)
+        c5 = self.reduce_conv_c5(c5)
+
+        # FPEM
+        for i, fpem in enumerate(self.fpems):
+            c2, c3, c4, c5 = fpem(c2, c3, c4, c5)
+            if i == 0:
+                c2_ffm = c2
+                c3_ffm = c3
+                c4_ffm = c4
+                c5_ffm = c5
+            else:
+                c2_ffm = c2_ffm + c2
+                c3_ffm = c3_ffm + c3
+                c4_ffm = c4_ffm + c4
+                c5_ffm = c5_ffm + c5
+
+        # FFM
+        c5 = F.interpolate(
+            c5_ffm,
+            c2_ffm.size()[-2:],
+            mode='bilinear',
+            align_corners=self.align_corners)
+        c4 = F.interpolate(
+            c4_ffm,
+            c2_ffm.size()[-2:],
+            mode='bilinear',
+            align_corners=self.align_corners)
+        c3 = F.interpolate(
+            c3_ffm,
+            c2_ffm.size()[-2:],
+            mode='bilinear',
+            align_corners=self.align_corners)
+        outs = [c2_ffm, c3, c4, c5]
+        return tuple(outs)
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/necks/fpn_cat.py b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpn_cat.py
new file mode 100644
index 0000000000000000000000000000000000000000..c1c8efb354b3ca5598db76e785fdbe620ef147e6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpn_cat.py
@@ -0,0 +1,276 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Union
+
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from mmcv.cnn import ConvModule
+from mmengine.model import BaseModule, ModuleList, Sequential
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class FPNC(BaseModule):
+    """FPN-like fusion module in Real-time Scene Text Detection with
+    Differentiable Binarization.
+
+    This was partially adapted from https://github.com/MhLiao/DB and
+    https://github.com/WenmuZhou/DBNet.pytorch.
+
+    Args:
+        in_channels (list[int]): A list of numbers of input channels.
+        lateral_channels (int): Number of channels for lateral layers.
+        out_channels (int): Number of output channels.
+        bias_on_lateral (bool): Whether to use bias on lateral convolutional
+            layers.
+        bn_re_on_lateral (bool): Whether to use BatchNorm and ReLU
+            on lateral convolutional layers.
+        bias_on_smooth (bool): Whether to use bias on smoothing layer.
+        bn_re_on_smooth (bool): Whether to use BatchNorm and ReLU on smoothing
+            layer.
+        asf_cfg (dict, optional): Adaptive Scale Fusion module configs. The
+            attention_type can be 'ScaleChannelSpatial'.
+        conv_after_concat (bool): Whether to add a convolution layer after
+            the concatenation of predictions.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: List[int],
+        lateral_channels: int = 256,
+        out_channels: int = 64,
+        bias_on_lateral: bool = False,
+        bn_re_on_lateral: bool = False,
+        bias_on_smooth: bool = False,
+        bn_re_on_smooth: bool = False,
+        asf_cfg: Optional[Dict] = None,
+        conv_after_concat: bool = False,
+        init_cfg: Optional[Union[Dict, List[Dict]]] = [
+            dict(type='Kaiming', layer='Conv'),
+            dict(type='Constant', layer='BatchNorm', val=1., bias=1e-4)
+        ]
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(in_channels, list)
+        self.in_channels = in_channels
+        self.lateral_channels = lateral_channels
+        self.out_channels = out_channels
+        self.num_ins = len(in_channels)
+        self.bn_re_on_lateral = bn_re_on_lateral
+        self.bn_re_on_smooth = bn_re_on_smooth
+        self.asf_cfg = asf_cfg
+        self.conv_after_concat = conv_after_concat
+        self.lateral_convs = ModuleList()
+        self.smooth_convs = ModuleList()
+        self.num_outs = self.num_ins
+
+        for i in range(self.num_ins):
+            norm_cfg = None
+            act_cfg = None
+            if self.bn_re_on_lateral:
+                norm_cfg = dict(type='BN')
+                act_cfg = dict(type='ReLU')
+            l_conv = ConvModule(
+                in_channels[i],
+                lateral_channels,
+                1,
+                bias=bias_on_lateral,
+                conv_cfg=None,
+                norm_cfg=norm_cfg,
+                act_cfg=act_cfg,
+                inplace=False)
+            norm_cfg = None
+            act_cfg = None
+            if self.bn_re_on_smooth:
+                norm_cfg = dict(type='BN')
+                act_cfg = dict(type='ReLU')
+
+            smooth_conv = ConvModule(
+                lateral_channels,
+                out_channels,
+                3,
+                bias=bias_on_smooth,
+                padding=1,
+                conv_cfg=None,
+                norm_cfg=norm_cfg,
+                act_cfg=act_cfg,
+                inplace=False)
+
+            self.lateral_convs.append(l_conv)
+            self.smooth_convs.append(smooth_conv)
+
+        if self.asf_cfg is not None:
+            self.asf_conv = ConvModule(
+                out_channels * self.num_outs,
+                out_channels * self.num_outs,
+                3,
+                padding=1,
+                conv_cfg=None,
+                norm_cfg=None,
+                act_cfg=None,
+                inplace=False)
+            if self.asf_cfg['attention_type'] == 'ScaleChannelSpatial':
+                self.asf_attn = ScaleChannelSpatialAttention(
+                    self.out_channels * self.num_outs,
+                    (self.out_channels * self.num_outs) // 4, self.num_outs)
+            else:
+                raise NotImplementedError
+
+        if self.conv_after_concat:
+            norm_cfg = dict(type='BN')
+            act_cfg = dict(type='ReLU')
+            self.out_conv = ConvModule(
+                out_channels * self.num_outs,
+                out_channels * self.num_outs,
+                3,
+                padding=1,
+                conv_cfg=None,
+                norm_cfg=norm_cfg,
+                act_cfg=act_cfg,
+                inplace=False)
+
+    def forward(self, inputs: List[torch.Tensor]) -> torch.Tensor:
+        """
+        Args:
+            inputs (list[Tensor]): Each tensor has the shape of
+                :math:`(N, C_i, H_i, W_i)`. It usually expects 4 tensors
+                (C2-C5 features) from ResNet.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, C_{out}, H_0, W_0)` where
+            :math:`C_{out}` is ``out_channels``.
+        """
+        assert len(inputs) == len(self.in_channels)
+        # build laterals
+        laterals = [
+            lateral_conv(inputs[i])
+            for i, lateral_conv in enumerate(self.lateral_convs)
+        ]
+        used_backbone_levels = len(laterals)
+        # build top-down path
+        for i in range(used_backbone_levels - 1, 0, -1):
+            prev_shape = laterals[i - 1].shape[2:]
+            laterals[i - 1] = laterals[i - 1] + F.interpolate(
+                laterals[i], size=prev_shape, mode='nearest')
+        # build outputs
+        # part 1: from original levels
+        outs = [
+            self.smooth_convs[i](laterals[i])
+            for i in range(used_backbone_levels)
+        ]
+
+        for i, out in enumerate(outs):
+            outs[i] = F.interpolate(
+                outs[i], size=outs[0].shape[2:], mode='nearest')
+
+        out = torch.cat(outs, dim=1)
+        if self.asf_cfg is not None:
+            asf_feature = self.asf_conv(out)
+            attention = self.asf_attn(asf_feature)
+            enhanced_feature = []
+            for i, out in enumerate(outs):
+                enhanced_feature.append(attention[:, i:i + 1] * outs[i])
+            out = torch.cat(enhanced_feature, dim=1)
+
+        if self.conv_after_concat:
+            out = self.out_conv(out)
+
+        return out
+
+
+class ScaleChannelSpatialAttention(BaseModule):
+    """Spatial Attention module in Real-Time Scene Text Detection with
+    Differentiable Binarization and Adaptive Scale Fusion.
+
+    This was partially adapted from https://github.com/MhLiao/DB
+
+    Args:
+        in_channels (int): A numbers of input channels.
+        c_wise_channels (int): Number of channel-wise attention channels.
+        out_channels (int): Number of output channels.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: int,
+        c_wise_channels: int,
+        out_channels: int,
+        init_cfg: Optional[Union[Dict, List[Dict]]] = [
+            dict(type='Kaiming', layer='Conv', bias=0)
+        ]
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.avg_pool = nn.AdaptiveAvgPool2d(1)
+        # Channel Wise
+        self.channel_wise = Sequential(
+            ConvModule(
+                in_channels,
+                c_wise_channels,
+                1,
+                bias=False,
+                conv_cfg=None,
+                norm_cfg=None,
+                act_cfg=dict(type='ReLU'),
+                inplace=False),
+            ConvModule(
+                c_wise_channels,
+                in_channels,
+                1,
+                bias=False,
+                conv_cfg=None,
+                norm_cfg=None,
+                act_cfg=dict(type='Sigmoid'),
+                inplace=False))
+        # Spatial Wise
+        self.spatial_wise = Sequential(
+            ConvModule(
+                1,
+                1,
+                3,
+                padding=1,
+                bias=False,
+                conv_cfg=None,
+                norm_cfg=None,
+                act_cfg=dict(type='ReLU'),
+                inplace=False),
+            ConvModule(
+                1,
+                1,
+                1,
+                bias=False,
+                conv_cfg=None,
+                norm_cfg=None,
+                act_cfg=dict(type='Sigmoid'),
+                inplace=False))
+        # Attention Wise
+        self.attention_wise = ConvModule(
+            in_channels,
+            out_channels,
+            1,
+            bias=False,
+            conv_cfg=None,
+            norm_cfg=None,
+            act_cfg=dict(type='Sigmoid'),
+            inplace=False)
+
+    def forward(self, inputs: torch.Tensor) -> torch.Tensor:
+        """
+        Args:
+            inputs (Tensor): A concat FPN feature tensor that has the shape of
+                :math:`(N, C, H, W)`.
+
+        Returns:
+            Tensor: An attention map of shape :math:`(N, C_{out}, H, W)`
+            where :math:`C_{out}` is ``out_channels``.
+        """
+        out = self.avg_pool(inputs)
+        out = self.channel_wise(out)
+        out = out + inputs
+        inputs = torch.mean(out, dim=1, keepdim=True)
+        out = self.spatial_wise(inputs) + out
+        out = self.attention_wise(out)
+
+        return out
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/necks/fpn_unet.py b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpn_unet.py
new file mode 100644
index 0000000000000000000000000000000000000000..63e0d7fc794773263f97024d0392883022079858
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpn_unet.py
@@ -0,0 +1,136 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import torch
+import torch.nn.functional as F
+from mmengine.model import BaseModule
+from torch import nn
+
+from mmocr.registry import MODELS
+
+
+class UpBlock(BaseModule):
+    """Upsample block for DRRG and TextSnake.
+
+    DRRG: `Deep Relational Reasoning Graph Network for Arbitrary Shape
+    Text Detection <https://arxiv.org/abs/2003.07493>`_.
+
+    TextSnake: `A Flexible Representation for Detecting Text of Arbitrary
+    Shapes <https://arxiv.org/abs/1807.01544>`_.
+
+    Args:
+        in_channels (list[int]): Number of input channels at each scale. The
+            length of the list should be 4.
+        out_channels (int): The number of output channels.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 out_channels: int,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+
+        assert isinstance(in_channels, int)
+        assert isinstance(out_channels, int)
+
+        self.conv1x1 = nn.Conv2d(
+            in_channels, in_channels, kernel_size=1, stride=1, padding=0)
+        self.conv3x3 = nn.Conv2d(
+            in_channels, out_channels, kernel_size=3, stride=1, padding=1)
+        self.deconv = nn.ConvTranspose2d(
+            out_channels, out_channels, kernel_size=4, stride=2, padding=1)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward propagation."""
+        x = F.relu(self.conv1x1(x))
+        x = F.relu(self.conv3x3(x))
+        x = self.deconv(x)
+        return x
+
+
+@MODELS.register_module()
+class FPN_UNet(BaseModule):
+    """The class for implementing DRRG and TextSnake U-Net-like FPN.
+
+    DRRG: `Deep Relational Reasoning Graph Network for Arbitrary Shape
+    Text Detection <https://arxiv.org/abs/2003.07493>`_.
+
+    TextSnake: `A Flexible Representation for Detecting Text of Arbitrary
+    Shapes <https://arxiv.org/abs/1807.01544>`_.
+
+    Args:
+        in_channels (list[int]): Number of input channels at each scale. The
+            length of the list should be 4.
+        out_channels (int): The number of output channels.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: int,
+        out_channels: int,
+        init_cfg: Optional[Union[Dict, List[Dict]]] = dict(
+            type='Xavier',
+            layer=['Conv2d', 'ConvTranspose2d'],
+            distribution='uniform')
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+
+        assert len(in_channels) == 4
+        assert isinstance(out_channels, int)
+
+        blocks_out_channels = [out_channels] + [
+            min(out_channels * 2**i, 256) for i in range(4)
+        ]
+        blocks_in_channels = [blocks_out_channels[1]] + [
+            in_channels[i] + blocks_out_channels[i + 2] for i in range(3)
+        ] + [in_channels[3]]
+
+        self.up4 = nn.ConvTranspose2d(
+            blocks_in_channels[4],
+            blocks_out_channels[4],
+            kernel_size=4,
+            stride=2,
+            padding=1)
+        self.up_block3 = UpBlock(blocks_in_channels[3], blocks_out_channels[3])
+        self.up_block2 = UpBlock(blocks_in_channels[2], blocks_out_channels[2])
+        self.up_block1 = UpBlock(blocks_in_channels[1], blocks_out_channels[1])
+        self.up_block0 = UpBlock(blocks_in_channels[0], blocks_out_channels[0])
+
+    def forward(self, x: List[Union[torch.Tensor,
+                                    Tuple[torch.Tensor]]]) -> torch.Tensor:
+        """
+        Args:
+            x (list[Tensor] | tuple[Tensor]): A list of four tensors of shape
+                :math:`(N, C_i, H_i, W_i)`, representing C2, C3, C4, C5
+                features respectively. :math:`C_i` should matches the number in
+                ``in_channels``.
+
+        Returns:
+            Tensor: Shape :math:`(N, C, H, W)` where :math:`H=4H_0` and
+            :math:`W=4W_0`.
+        """
+        c2, c3, c4, c5 = x
+
+        x = F.relu(self.up4(c5))
+
+        c4 = F.interpolate(
+            c4, size=x.shape[2:], mode='bilinear', align_corners=True)
+        x = torch.cat([x, c4], dim=1)
+        x = F.relu(self.up_block3(x))
+
+        c3 = F.interpolate(
+            c3, size=x.shape[2:], mode='bilinear', align_corners=True)
+        x = torch.cat([x, c3], dim=1)
+        x = F.relu(self.up_block2(x))
+
+        c2 = F.interpolate(
+            c2, size=x.shape[2:], mode='bilinear', align_corners=True)
+        x = torch.cat([x, c2], dim=1)
+        x = F.relu(self.up_block1(x))
+
+        x = self.up_block0(x)
+        # the output should be of the same height and width as backbone input
+        return x
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/necks/fpnf.py b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpnf.py
new file mode 100644
index 0000000000000000000000000000000000000000..17887e66b8c74b1f60383479e5df8f01b528a40b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/necks/fpnf.py
@@ -0,0 +1,136 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Union
+
+import torch
+import torch.nn.functional as F
+from mmcv.cnn import ConvModule
+from mmengine.model import BaseModule, ModuleList
+from torch import Tensor
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class FPNF(BaseModule):
+    """FPN-like fusion module in Shape Robust Text Detection with Progressive
+    Scale Expansion Network.
+
+    Args:
+        in_channels (list[int]): A list of number of input channels.
+            Defaults to [256, 512, 1024, 2048].
+        out_channels (int): The number of output channels.
+            Defaults to 256.
+        fusion_type (str): Type of the final feature fusion layer. Available
+            options are "concat" and "add". Defaults to "concat".
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to
+            dict(type='Xavier', layer='Conv2d', distribution='uniform')
+    """
+
+    def __init__(
+        self,
+        in_channels: List[int] = [256, 512, 1024, 2048],
+        out_channels: int = 256,
+        fusion_type: str = 'concat',
+        init_cfg: Optional[Union[Dict, List[Dict]]] = dict(
+            type='Xavier', layer='Conv2d', distribution='uniform')
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+        conv_cfg = None
+        norm_cfg = dict(type='BN')
+        act_cfg = dict(type='ReLU')
+
+        self.in_channels = in_channels
+        self.out_channels = out_channels
+
+        self.lateral_convs = ModuleList()
+        self.fpn_convs = ModuleList()
+        self.backbone_end_level = len(in_channels)
+        for i in range(self.backbone_end_level):
+            l_conv = ConvModule(
+                in_channels[i],
+                out_channels,
+                1,
+                conv_cfg=conv_cfg,
+                norm_cfg=norm_cfg,
+                act_cfg=act_cfg,
+                inplace=False)
+            self.lateral_convs.append(l_conv)
+
+            if i < self.backbone_end_level - 1:
+                fpn_conv = ConvModule(
+                    out_channels,
+                    out_channels,
+                    3,
+                    padding=1,
+                    conv_cfg=conv_cfg,
+                    norm_cfg=norm_cfg,
+                    act_cfg=act_cfg,
+                    inplace=False)
+                self.fpn_convs.append(fpn_conv)
+
+        self.fusion_type = fusion_type
+
+        if self.fusion_type == 'concat':
+            feature_channels = 1024
+        elif self.fusion_type == 'add':
+            feature_channels = 256
+        else:
+            raise NotImplementedError
+
+        self.output_convs = ConvModule(
+            feature_channels,
+            out_channels,
+            3,
+            padding=1,
+            conv_cfg=None,
+            norm_cfg=norm_cfg,
+            act_cfg=act_cfg,
+            inplace=False)
+
+    def forward(self, inputs: List[Tensor]) -> Tensor:
+        """
+        Args:
+            inputs (list[Tensor]): Each tensor has the shape of
+                :math:`(N, C_i, H_i, W_i)`. It usually expects 4 tensors
+                (C2-C5 features) from ResNet.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, C_{out}, H_0, W_0)` where
+            :math:`C_{out}` is ``out_channels``.
+        """
+        assert len(inputs) == len(self.in_channels)
+
+        # build laterals
+        laterals = [
+            lateral_conv(inputs[i])
+            for i, lateral_conv in enumerate(self.lateral_convs)
+        ]
+
+        # build top-down path
+        used_backbone_levels = len(laterals)
+        for i in range(used_backbone_levels - 1, 0, -1):
+            # step 1: upsample to level i-1 size and add level i-1
+            prev_shape = laterals[i - 1].shape[2:]
+            laterals[i - 1] = laterals[i - 1] + F.interpolate(
+                laterals[i], size=prev_shape, mode='nearest')
+            # step 2: smooth level i-1
+            laterals[i - 1] = self.fpn_convs[i - 1](laterals[i - 1])
+
+        # upsample and cat
+        bottom_shape = laterals[0].shape[2:]
+        for i in range(1, used_backbone_levels):
+            laterals[i] = F.interpolate(
+                laterals[i], size=bottom_shape, mode='nearest')
+
+        if self.fusion_type == 'concat':
+            out = torch.cat(laterals, 1)
+        elif self.fusion_type == 'add':
+            out = laterals[0]
+            for i in range(1, used_backbone_levels):
+                out += laterals[i]
+        else:
+            raise NotImplementedError
+        out = self.output_convs(out)
+
+        return out
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/__init__.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..783958e518b3707736aef40be7c7720ad447424c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/__init__.py
@@ -0,0 +1,14 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .base import BaseTextDetPostProcessor
+from .db_postprocessor import DBPostprocessor
+from .drrg_postprocessor import DRRGPostprocessor
+from .fce_postprocessor import FCEPostprocessor
+from .pan_postprocessor import PANPostprocessor
+from .pse_postprocessor import PSEPostprocessor
+from .textsnake_postprocessor import TextSnakePostprocessor
+
+__all__ = [
+    'PSEPostprocessor', 'PANPostprocessor', 'DBPostprocessor',
+    'DRRGPostprocessor', 'FCEPostprocessor', 'TextSnakePostprocessor',
+    'BaseTextDetPostProcessor'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/base.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..706b152672665c9500aeda5bab4cc5bd156fe678
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/base.py
@@ -0,0 +1,204 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from functools import partial
+from typing import Dict, List, Optional, Sequence, Tuple, Union
+
+import mmengine
+import numpy as np
+from torch import Tensor
+
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import boundary_iou, rescale_polygons
+
+
+class BaseTextDetPostProcessor:
+    """Base postprocessor for text detection models.
+
+    Args:
+        text_repr_type (str): The boundary encoding type, 'poly' or 'quad'.
+            Defaults to 'poly'.
+        rescale_fields (list[str], optional): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed.
+        train_cfg (dict, optional): The parameters to be passed to
+            ``self.get_text_instances`` in training. Defaults to None.
+        test_cfg (dict, optional): The parameters to be passed to
+            ``self.get_text_instances`` in testing. Defaults to None.
+    """
+
+    def __init__(self,
+                 text_repr_type: str = 'poly',
+                 rescale_fields: Optional[Sequence[str]] = None,
+                 train_cfg: Optional[Dict] = None,
+                 test_cfg: Optional[Dict] = None) -> None:
+        assert text_repr_type in ['poly', 'quad']
+        assert rescale_fields is None or isinstance(rescale_fields, list)
+        assert train_cfg is None or isinstance(train_cfg, dict)
+        assert test_cfg is None or isinstance(test_cfg, dict)
+        self.text_repr_type = text_repr_type
+        self.rescale_fields = rescale_fields
+        self.train_cfg = train_cfg
+        self.test_cfg = test_cfg
+
+    def __call__(self,
+                 pred_results: Union[Tensor, List[Tensor]],
+                 data_samples: Sequence[TextDetDataSample],
+                 training: bool = False) -> Sequence[TextDetDataSample]:
+        """Postprocess pred_results according to metainfos in data_samples.
+
+        Args:
+            pred_results (Union[Tensor, List[Tensor]]): The prediction results
+                stored in a tensor or a list of tensor. Usually each item to
+                be post-processed is expected to be a batched tensor.
+            data_samples (list[TextDetDataSample]): Batch of data_samples,
+                each corresponding to a prediction result.
+            training (bool): Whether the model is in training mode. Defaults to
+                False.
+
+        Returns:
+            list[TextDetDataSample]: Batch of post-processed datasamples.
+        """
+        cfg = self.train_cfg if training else self.test_cfg
+        if cfg is None:
+            cfg = {}
+        pred_results = self.split_results(pred_results)
+        process_single = partial(self._process_single, **cfg)
+        results = list(map(process_single, pred_results, data_samples))
+
+        return results
+
+    def _process_single(self, pred_result: Union[Tensor, List[Tensor]],
+                        data_sample: TextDetDataSample,
+                        **kwargs) -> TextDetDataSample:
+        """Process prediction results from one image.
+
+        Args:
+            pred_result (Union[Tensor, List[Tensor]]): Prediction results of an
+                image.
+            data_sample (TextDetDataSample): Datasample of an image.
+        """
+
+        results = self.get_text_instances(pred_result, data_sample, **kwargs)
+
+        if self.rescale_fields and len(self.rescale_fields) > 0:
+            assert isinstance(self.rescale_fields, list)
+            assert set(self.rescale_fields).issubset(
+                set(results.pred_instances.keys()))
+            results = self.rescale(results, data_sample.scale_factor)
+        return results
+
+    def rescale(self, results: TextDetDataSample,
+                scale_factor: Sequence[int]) -> TextDetDataSample:
+        """Rescale results in ``results.pred_instances`` according to
+        ``scale_factor``, whose keys are defined in ``self.rescale_fields``.
+        Usually used to rescale bboxes and/or polygons.
+
+        Args:
+            results (TextDetDataSample): The post-processed prediction results.
+            scale_factor (tuple(int)): (w_scale, h_scale)
+
+        Returns:
+            TextDetDataSample: Prediction results with rescaled results.
+        """
+        scale_factor = np.asarray(scale_factor)
+        for key in self.rescale_fields:
+            results.pred_instances[key] = rescale_polygons(
+                results.pred_instances[key], scale_factor, mode='div')
+        return results
+
+    def get_text_instances(self, pred_results: Union[Tensor, List[Tensor]],
+                           data_sample: TextDetDataSample,
+                           **kwargs) -> TextDetDataSample:
+        """Get text instance predictions of one image.
+
+        Args:
+            pred_result (tuple(Tensor)): Prediction results of an image.
+            data_sample (TextDetDataSample): Datasample of an image.
+            **kwargs: Other parameters. Configurable via ``__init__.train_cfg``
+                and ``__init__.test_cfg``.
+
+        Returns:
+            TextDetDataSample: A new DataSample with predictions filled in.
+            The polygon/bbox results are usually saved in
+            ``TextDetDataSample.pred_instances.polygons`` or
+            ``TextDetDataSample.pred_instances.bboxes``. The confidence scores
+            are saved in ``TextDetDataSample.pred_instances.scores``.
+        """
+        raise NotImplementedError
+
+    def split_results(
+        self, pred_results: Union[Tensor, List[Tensor]]
+    ) -> Union[List[Tensor], List[List[Tensor]]]:
+        """Split batched tensor(s) along the first dimension pack split tensors
+        into a list.
+
+        Args:
+            pred_results (tensor or list[tensor]): Raw result tensor(s) from
+                detection head. Each tensor usually has the shape of (N, ...)
+
+        Returns:
+            list[tensor] or list[list[tensor]]: N tensors if ``pred_results``
+                is a tensor, or a list of N lists of tensors if
+                ``pred_results`` is a list of tensors.
+        """
+        assert isinstance(pred_results, Tensor) or mmengine.is_seq_of(
+            pred_results, Tensor)
+
+        if mmengine.is_seq_of(pred_results, Tensor):
+            for i in range(1, len(pred_results)):
+                assert pred_results[0].shape[0] == pred_results[i].shape[0], \
+                    'The first dimension of all tensors should be the same'
+
+        batch_num = len(pred_results) if isinstance(pred_results, Tensor) else\
+            len(pred_results[0])
+        results = []
+        for i in range(batch_num):
+            if isinstance(pred_results, Tensor):
+                results.append(pred_results[i])
+            else:
+                results.append([])
+                for tensor in pred_results:
+                    results[i].append(tensor[i])
+        return results
+
+    def poly_nms(self, polygons: List[np.ndarray], scores: List[float],
+                 threshold: float) -> Tuple[List[np.ndarray], List[float]]:
+        """Non-maximum suppression for text detection.
+
+        Args:
+            polygons (list[ndarray]): List of polygons.
+            scores (list[float]): List of scores.
+            threshold (float): Threshold for NMS.
+
+        Returns:
+            tuple(keep_polys, keep_scores):
+
+            - keep_polys (list[ndarray]): List of preserved polygons after NMS.
+            - keep_scores (list[float]): List of preserved scores after NMS.
+        """
+        assert isinstance(polygons, list)
+        assert isinstance(scores, list)
+        assert len(polygons) == len(scores)
+
+        polygons = [
+            np.hstack((polygon, score))
+            for polygon, score in zip(polygons, scores)
+        ]
+        polygons = np.array(sorted(polygons, key=lambda x: x[-1]))
+        keep_polys = []
+        keep_scores = []
+        index = [i for i in range(len(polygons))]
+
+        while len(index) > 0:
+            keep_polys.append(polygons[index[-1]][:-1].tolist())
+            keep_scores.append(polygons[index[-1]][-1])
+            A = polygons[index[-1]][:-1]
+            index = np.delete(index, -1)
+
+            iou_list = np.zeros((len(index), ))
+            for i in range(len(index)):
+                B = polygons[index[i]][:-1]
+
+                iou_list[i] = boundary_iou(A, B, 1)
+            remove_index = np.where(iou_list > threshold)
+            index = np.delete(index, remove_index)
+
+        return keep_polys, keep_scores
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/db_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/db_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..7ae3290e8645942a601d16ede54c6ba7146b8430
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/db_postprocessor.py
@@ -0,0 +1,169 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Sequence
+
+import cv2
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from shapely.geometry import Polygon
+from torch import Tensor
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import offset_polygon
+from .base import BaseTextDetPostProcessor
+
+
+@MODELS.register_module()
+class DBPostprocessor(BaseTextDetPostProcessor):
+    """Decoding predictions of DbNet to instances. This is partially adapted
+    from https://github.com/MhLiao/DB.
+
+    Args:
+        text_repr_type (str): The boundary encoding type 'poly' or 'quad'.
+            Defaults to 'poly'.
+        rescale_fields (list[str]): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed. Defaults to
+            ['polygons'].
+        mask_thr (float): The mask threshold value for binarization. Defaults
+            to 0.3.
+        min_text_score (float): The threshold value for converting binary map
+            to shrink text regions. Defaults to 0.3.
+        min_text_width (int): The minimum width of boundary polygon/box
+            predicted. Defaults to 5.
+        unclip_ratio (float): The unclip ratio for text regions dilation.
+            Defaults to 1.5.
+        epsilon_ratio (float): The epsilon ratio for approximation accuracy.
+            Defaults to 0.01.
+        max_candidates (int): The maximum candidate number. Defaults to 3000.
+    """
+
+    def __init__(self,
+                 text_repr_type: str = 'poly',
+                 rescale_fields: Sequence[str] = ['polygons'],
+                 mask_thr: float = 0.3,
+                 min_text_score: float = 0.3,
+                 min_text_width: int = 5,
+                 unclip_ratio: float = 1.5,
+                 epsilon_ratio: float = 0.01,
+                 max_candidates: int = 3000,
+                 **kwargs) -> None:
+        super().__init__(
+            text_repr_type=text_repr_type,
+            rescale_fields=rescale_fields,
+            **kwargs)
+        self.mask_thr = mask_thr
+        self.min_text_score = min_text_score
+        self.min_text_width = min_text_width
+        self.unclip_ratio = unclip_ratio
+        self.epsilon_ratio = epsilon_ratio
+        self.max_candidates = max_candidates
+
+    def get_text_instances(self, prob_map: Tensor,
+                           data_sample: TextDetDataSample
+                           ) -> TextDetDataSample:
+        """Get text instance predictions of one image.
+
+        Args:
+            pred_result (Tensor): DBNet's output ``prob_map`` of shape
+                :math:`(H, W)`.
+            data_sample (TextDetDataSample): Datasample of an image.
+
+        Returns:
+            TextDetDataSample: A new DataSample with predictions filled in.
+            Polygons and results are saved in
+            ``TextDetDataSample.pred_instances.polygons``. The confidence
+            scores are saved in ``TextDetDataSample.pred_instances.scores``.
+        """
+
+        data_sample.pred_instances = InstanceData()
+        data_sample.pred_instances.polygons = []
+        data_sample.pred_instances.scores = []
+
+        text_mask = prob_map > self.mask_thr
+
+        score_map = prob_map.data.cpu().numpy().astype(np.float32)
+        text_mask = text_mask.data.cpu().numpy().astype(np.uint8)  # to numpy
+
+        contours, _ = cv2.findContours((text_mask * 255).astype(np.uint8),
+                                       cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
+
+        for i, poly in enumerate(contours):
+            if i > self.max_candidates:
+                break
+            epsilon = self.epsilon_ratio * cv2.arcLength(poly, True)
+            approx = cv2.approxPolyDP(poly, epsilon, True)
+            poly_pts = approx.reshape((-1, 2))
+            if poly_pts.shape[0] < 4:
+                continue
+            score = self._get_bbox_score(score_map, poly_pts)
+            if score < self.min_text_score:
+                continue
+            poly = self._unclip(poly_pts)
+            # If the result polygon does not exist, or it is split into
+            # multiple polygons, skip it.
+            if len(poly) == 0:
+                continue
+            poly = poly.reshape(-1, 2)
+
+            if self.text_repr_type == 'quad':
+                rect = cv2.minAreaRect(poly)
+                vertices = cv2.boxPoints(rect)
+                poly = vertices.flatten() if min(
+                    rect[1]) >= self.min_text_width else []
+            elif self.text_repr_type == 'poly':
+                poly = poly.flatten()
+
+            if len(poly) < 8:
+                poly = np.array([], dtype=np.float32)
+
+            if len(poly) > 0:
+                data_sample.pred_instances.polygons.append(poly)
+                data_sample.pred_instances.scores.append(score)
+
+        data_sample.pred_instances.scores = torch.FloatTensor(
+            data_sample.pred_instances.scores)
+
+        return data_sample
+
+    def _get_bbox_score(self, score_map: np.ndarray,
+                        poly_pts: np.ndarray) -> float:
+        """Compute the average score over the area of the bounding box of the
+        polygon.
+
+        Args:
+            score_map (np.ndarray): The score map.
+            poly_pts (np.ndarray): The polygon points.
+
+        Returns:
+            float: The average score.
+        """
+        h, w = score_map.shape[:2]
+        poly_pts = poly_pts.copy()
+        xmin = np.clip(
+            np.floor(poly_pts[:, 0].min()).astype(np.int32), 0, w - 1)
+        xmax = np.clip(
+            np.ceil(poly_pts[:, 0].max()).astype(np.int32), 0, w - 1)
+        ymin = np.clip(
+            np.floor(poly_pts[:, 1].min()).astype(np.int32), 0, h - 1)
+        ymax = np.clip(
+            np.ceil(poly_pts[:, 1].max()).astype(np.int32), 0, h - 1)
+
+        mask = np.zeros((ymax - ymin + 1, xmax - xmin + 1), dtype=np.uint8)
+        poly_pts[:, 0] = poly_pts[:, 0] - xmin
+        poly_pts[:, 1] = poly_pts[:, 1] - ymin
+        cv2.fillPoly(mask, poly_pts.reshape(1, -1, 2).astype(np.int32), 1)
+        return cv2.mean(score_map[ymin:ymax + 1, xmin:xmax + 1], mask)[0]
+
+    def _unclip(self, poly_pts: np.ndarray) -> np.ndarray:
+        """Unclip a polygon.
+
+        Args:
+            poly_pts (np.ndarray): The polygon points.
+
+        Returns:
+            np.ndarray: The expanded polygon points.
+        """
+        poly = Polygon(poly_pts)
+        distance = poly.area * self.unclip_ratio / poly.length
+        return offset_polygon(poly_pts, distance)
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/drrg_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/drrg_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..1bf3dacdfa0ceaefddd7c946af2f2cbf862ac3d6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/drrg_postprocessor.py
@@ -0,0 +1,447 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import functools
+import operator
+from typing import Dict, List, Tuple, Union
+
+import cv2
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from numpy import ndarray
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from .base import BaseTextDetPostProcessor
+
+
+class Node:
+    """A simple graph node.
+
+    Args:
+        ind (int): The index of the node.
+    """
+
+    def __init__(self, ind: int) -> None:
+        self.__ind = ind
+        self.__links = set()
+
+    @property
+    def ind(self) -> int:
+        """Current node index."""
+        return self.__ind
+
+    @property
+    def links(self) -> set:
+        """A set of links."""
+        return set(self.__links)
+
+    def add_link(self, link_node: 'Node') -> None:
+        """Add a link to the node.
+
+        Args:
+            link_node (Node): The link node.
+        """
+        self.__links.add(link_node)
+        link_node.__links.add(self)
+
+
+@MODELS.register_module()
+class DRRGPostprocessor(BaseTextDetPostProcessor):
+    """Merge text components and construct boundaries of text instances.
+
+    Args:
+        link_thr (float): The edge score threshold. Defaults to 0.8.
+        edge_len_thr (int or float): The edge length threshold. Defaults to 50.
+        rescale_fields (list[str]): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed. Defaults to
+            [polygons'].
+    """
+
+    def __init__(self,
+                 link_thr: float = 0.8,
+                 edge_len_thr: Union[int, float] = 50.,
+                 rescale_fields=['polygons'],
+                 **kwargs) -> None:
+        super().__init__(rescale_fields=rescale_fields)
+        assert isinstance(link_thr, float)
+        assert isinstance(edge_len_thr, (int, float))
+        self.link_thr = link_thr
+        self.edge_len_thr = edge_len_thr
+
+    def get_text_instances(self, pred_results: Tuple[ndarray, ndarray,
+                                                     ndarray],
+                           data_sample: TextDetDataSample
+                           ) -> TextDetDataSample:
+        """Get text instance predictions of one image.
+
+        Args:
+            pred_result (tuple(ndarray, ndarray, ndarray)): Prediction results
+                edge, score and text_comps. Each of shape
+                :math:`(N_{edges}, 2)`, :math:`(N_{edges},)` and
+                :math:`(M, 9)`, respectively.
+            data_sample (TextDetDataSample): Datasample of an image.
+
+        Returns:
+            TextDetDataSample: The original dataSample with predictions filled
+            in. Polygons and results are saved in
+            ``TextDetDataSample.pred_instances.polygons``. The confidence
+            scores are saved in ``TextDetDataSample.pred_instances.scores``.
+        """
+
+        data_sample.pred_instances = InstanceData()
+        polys = []
+        scores = []
+
+        pred_edges, pred_scores, text_comps = pred_results
+
+        if pred_edges is not None:
+            assert len(pred_edges) == len(pred_scores)
+            assert text_comps.ndim == 2
+            assert text_comps.shape[1] == 9
+
+            vertices, score_dict = self._graph_propagation(
+                pred_edges, pred_scores, text_comps)
+            clusters = self._connected_components(vertices, score_dict)
+            pred_labels = self._clusters2labels(clusters, text_comps.shape[0])
+            text_comps, pred_labels = self._remove_single(
+                text_comps, pred_labels)
+            polys, scores = self._comps2polys(text_comps, pred_labels)
+
+        data_sample.pred_instances.polygons = polys
+        data_sample.pred_instances.scores = torch.FloatTensor(scores)
+
+        return data_sample
+
+    def split_results(self, pred_results: Tuple[ndarray, ndarray,
+                                                ndarray]) -> List[Tuple]:
+        """Split batched elements in pred_results along the first dimension
+        into ``batch_num`` sub-elements and regather them into a list of dicts.
+
+        However, DRRG only outputs one batch at inference time, so this
+        function is a no-op.
+        """
+        return [pred_results]
+
+    def _graph_propagation(self, edges: ndarray, scores: ndarray,
+                           text_comps: ndarray) -> Tuple[List[Node], Dict]:
+        """Propagate edge score information and construct graph. This code was
+        partially adapted from https://github.com/GXYM/DRRG licensed under the
+        MIT license.
+
+        Args:
+            edges (ndarray): The edge array of shape N * 2, each row is a node
+                index pair that makes up an edge in graph.
+            scores (ndarray): The edge score array.
+            text_comps (ndarray): The text components.
+
+        Returns:
+            tuple(vertices, score_dict):
+
+            - vertices (list[Node]): The Nodes in graph.
+            - score_dict (dict): The edge score dict.
+        """
+        assert edges.ndim == 2
+        assert edges.shape[1] == 2
+        assert edges.shape[0] == scores.shape[0]
+        assert text_comps.ndim == 2
+
+        edges = np.sort(edges, axis=1)
+        score_dict = {}
+        for i, edge in enumerate(edges):
+            if text_comps is not None:
+                box1 = text_comps[edge[0], :8].reshape(4, 2)
+                box2 = text_comps[edge[1], :8].reshape(4, 2)
+                center1 = np.mean(box1, axis=0)
+                center2 = np.mean(box2, axis=0)
+                distance = np.linalg.norm(center1 - center2)
+                if distance > self.edge_len_thr:
+                    scores[i] = 0
+            if (edge[0], edge[1]) in score_dict:
+                score_dict[edge[0], edge[1]] = 0.5 * (
+                    score_dict[edge[0], edge[1]] + scores[i])
+            else:
+                score_dict[edge[0], edge[1]] = scores[i]
+
+        nodes = np.sort(np.unique(edges.flatten()))
+        mapping = -1 * np.ones((np.max(nodes) + 1), dtype=int)
+        mapping[nodes] = np.arange(nodes.shape[0])
+        order_inds = mapping[edges]
+        vertices = [Node(node) for node in nodes]
+        for ind in order_inds:
+            vertices[ind[0]].add_link(vertices[ind[1]])
+
+        return vertices, score_dict
+
+    def _connected_components(self, nodes: List[Node],
+                              score_dict: Dict) -> List[List[Node]]:
+        """Conventional connected components searching. This code was partially
+        adapted from https://github.com/GXYM/DRRG licensed under the MIT
+        license.
+
+        Args:
+            nodes (list[Node]): The list of Node objects.
+            score_dict (dict): The edge score dict.
+
+        Returns:
+            List[list[Node]]: The clustered Node objects.
+        """
+        assert isinstance(nodes, list)
+        assert all([isinstance(node, Node) for node in nodes])
+        assert isinstance(score_dict, dict)
+
+        clusters = []
+        nodes = set(nodes)
+        while nodes:
+            node = nodes.pop()
+            cluster = {node}
+            node_queue = [node]
+            while node_queue:
+                node = node_queue.pop(0)
+                neighbors = {
+                    neighbor
+                    for neighbor in node.links if score_dict[tuple(
+                        sorted([node.ind, neighbor.ind]))] >= self.link_thr
+                }
+                neighbors.difference_update(cluster)
+                nodes.difference_update(neighbors)
+                cluster.update(neighbors)
+                node_queue.extend(neighbors)
+            clusters.append(list(cluster))
+        return clusters
+
+    def _clusters2labels(self, clusters: List[List[Node]],
+                         num_nodes: int) -> ndarray:
+        """Convert clusters of Node to text component labels. This code was
+        partially adapted from https://github.com/GXYM/DRRG licensed under the
+        MIT license.
+
+        Args:
+            clusters (List[list[Node]]): The clusters of Node objects.
+            num_nodes (int): The total node number of graphs in an image.
+
+        Returns:
+            ndarray: The node label array.
+        """
+        assert isinstance(clusters, list)
+        assert all([isinstance(cluster, list) for cluster in clusters])
+        assert all([
+            isinstance(node, Node) for cluster in clusters for node in cluster
+        ])
+        assert isinstance(num_nodes, int)
+
+        node_labels = np.zeros(num_nodes)
+        for cluster_ind, cluster in enumerate(clusters):
+            for node in cluster:
+                node_labels[node.ind] = cluster_ind
+        return node_labels
+
+    def _remove_single(self, text_comps: ndarray,
+                       comp_pred_labels: ndarray) -> Tuple[ndarray, ndarray]:
+        """Remove isolated text components. This code was partially adapted
+        from https://github.com/GXYM/DRRG licensed under the MIT license.
+
+        Args:
+            text_comps (ndarray): The text components.
+            comp_pred_labels (ndarray): The clustering labels of text
+                components.
+
+        Returns:
+            tuple(filtered_text_comps, comp_pred_labels):
+
+            - filtered_text_comps (ndarray): The text components with isolated
+              ones removed.
+            - comp_pred_labels (ndarray): The clustering labels with labels of
+              isolated text components removed.
+        """
+        assert text_comps.ndim == 2
+        assert text_comps.shape[0] == comp_pred_labels.shape[0]
+
+        single_flags = np.zeros_like(comp_pred_labels)
+        pred_labels = np.unique(comp_pred_labels)
+        for label in pred_labels:
+            current_label_flag = (comp_pred_labels == label)
+            if np.sum(current_label_flag) == 1:
+                single_flags[np.where(current_label_flag)[0][0]] = 1
+        keep_ind = [
+            i for i in range(len(comp_pred_labels)) if not single_flags[i]
+        ]
+        filtered_text_comps = text_comps[keep_ind, :]
+        filtered_labels = comp_pred_labels[keep_ind]
+
+        return filtered_text_comps, filtered_labels
+
+    def _comps2polys(self, text_comps: ndarray, comp_pred_labels: ndarray
+                     ) -> Tuple[List[ndarray], List[float]]:
+        """Construct text instance boundaries from clustered text components.
+        This code was partially adapted from https://github.com/GXYM/DRRG
+        licensed under the MIT license.
+
+        Args:
+            text_comps (ndarray): The text components.
+            comp_pred_labels (ndarray): The clustering labels of text
+                components.
+
+        Returns:
+            tuple(boundaries, scores):
+
+            - boundaries (list[ndarray]): The predicted boundaries of text
+              instances.
+            - scores (list[float]): The boundary scores.
+        """
+        assert text_comps.ndim == 2
+        assert len(text_comps) == len(comp_pred_labels)
+        boundaries = []
+        scores = []
+        if len(text_comps) < 1:
+            return boundaries, scores
+        for cluster_ind in range(0, int(np.max(comp_pred_labels)) + 1):
+            cluster_comp_inds = np.where(comp_pred_labels == cluster_ind)
+            text_comp_boxes = text_comps[cluster_comp_inds, :8].reshape(
+                (-1, 4, 2)).astype(np.int32)
+            score = np.mean(text_comps[cluster_comp_inds, -1])
+
+            if text_comp_boxes.shape[0] < 1:
+                continue
+
+            elif text_comp_boxes.shape[0] > 1:
+                centers = np.mean(
+                    text_comp_boxes, axis=1).astype(np.int32).tolist()
+                shortest_path = self._min_connect_path(centers)
+                text_comp_boxes = text_comp_boxes[shortest_path]
+                top_line = np.mean(
+                    text_comp_boxes[:, 0:2, :],
+                    axis=1).astype(np.int32).tolist()
+                bot_line = np.mean(
+                    text_comp_boxes[:, 2:4, :],
+                    axis=1).astype(np.int32).tolist()
+                top_line, bot_line = self._fix_corner(top_line, bot_line,
+                                                      text_comp_boxes[0],
+                                                      text_comp_boxes[-1])
+                boundary_points = top_line + bot_line[::-1]
+
+            else:
+                top_line = text_comp_boxes[0, 0:2, :].astype(np.int32).tolist()
+                bot_line = text_comp_boxes[0, 2:4:-1, :].astype(
+                    np.int32).tolist()
+                boundary_points = top_line + bot_line
+
+            boundary = [p for coord in boundary_points for p in coord]
+            boundaries.append(np.array(boundary, dtype=np.float32))
+            scores.append(score)
+
+        return boundaries, scores
+
+    def _norm2(self, point1: List[int], point2: List[int]) -> float:
+        """Calculate the norm of two points."""
+        return ((point1[0] - point2[0])**2 + (point1[1] - point2[1])**2)**0.5
+
+    def _min_connect_path(self, points: List[List[int]]) -> List[List[int]]:
+        """Find the shortest path to traverse all points. This code was
+        partially adapted from https://github.com/GXYM/DRRG licensed under the
+        MIT license.
+
+        Args:
+            points(List[list[int]]): The point sequence
+                [[x0, y0], [x1, y1], ...].
+
+        Returns:
+            List[list[int]]: The shortest index path.
+        """
+        assert isinstance(points, list)
+        assert all([isinstance(point, list) for point in points])
+        assert all(
+            [isinstance(coord, int) for point in points for coord in point])
+
+        points_queue = points.copy()
+        shortest_path = []
+        current_edge = [[], []]
+
+        edge_dict0 = {}
+        edge_dict1 = {}
+        current_edge[0] = points_queue[0]
+        current_edge[1] = points_queue[0]
+        points_queue.remove(points_queue[0])
+        while points_queue:
+            for point in points_queue:
+                length0 = self._norm2(point, current_edge[0])
+                edge_dict0[length0] = [point, current_edge[0]]
+                length1 = self._norm2(current_edge[1], point)
+                edge_dict1[length1] = [current_edge[1], point]
+            key0 = min(edge_dict0.keys())
+            key1 = min(edge_dict1.keys())
+
+            if key0 <= key1:
+                start = edge_dict0[key0][0]
+                end = edge_dict0[key0][1]
+                shortest_path.insert(0,
+                                     [points.index(start),
+                                      points.index(end)])
+                points_queue.remove(start)
+                current_edge[0] = start
+            else:
+                start = edge_dict1[key1][0]
+                end = edge_dict1[key1][1]
+                shortest_path.append([points.index(start), points.index(end)])
+                points_queue.remove(end)
+                current_edge[1] = end
+
+            edge_dict0 = {}
+            edge_dict1 = {}
+
+        shortest_path = functools.reduce(operator.concat, shortest_path)
+        shortest_path = sorted(set(shortest_path), key=shortest_path.index)
+
+        return shortest_path
+
+    def _in_contour(self, contour: ndarray, point: ndarray) -> bool:
+        """Whether a point is in a contour."""
+        x, y = point
+        return cv2.pointPolygonTest(contour, (int(x), int(y)), False) > 0.5
+
+    def _fix_corner(self, top_line: List[List[int]], btm_line: List[List[int]],
+                    start_box: ndarray, end_box: ndarray
+                    ) -> Tuple[List[List[int]], List[List[int]]]:
+        """Add corner points to predicted side lines. This code was partially
+        adapted from https://github.com/GXYM/DRRG licensed under the MIT
+        license.
+
+        Args:
+            top_line (List[list[int]]): The predicted top sidelines of text
+                instance.
+            btm_line (List[list[int]]): The predicted bottom sidelines of text
+                instance.
+            start_box (ndarray): The first text component box.
+            end_box (ndarray): The last text component box.
+
+        Returns:
+            tuple(top_line, bot_line):
+
+            - top_line (List[list[int]]): The top sidelines with corner point
+              added.
+            - bot_line (List[list[int]]): The bottom sidelines with corner
+              point added.
+        """
+        assert isinstance(top_line, list)
+        assert all(isinstance(point, list) for point in top_line)
+        assert isinstance(btm_line, list)
+        assert all(isinstance(point, list) for point in btm_line)
+        assert start_box.shape == end_box.shape == (4, 2)
+
+        contour = np.array(top_line + btm_line[::-1])
+        start_left_mid = (start_box[0] + start_box[3]) / 2
+        start_right_mid = (start_box[1] + start_box[2]) / 2
+        end_left_mid = (end_box[0] + end_box[3]) / 2
+        end_right_mid = (end_box[1] + end_box[2]) / 2
+        if not self._in_contour(contour, start_left_mid):
+            top_line.insert(0, start_box[0].tolist())
+            btm_line.insert(0, start_box[3].tolist())
+        elif not self._in_contour(contour, start_right_mid):
+            top_line.insert(0, start_box[1].tolist())
+            btm_line.insert(0, start_box[2].tolist())
+        if not self._in_contour(contour, end_left_mid):
+            top_line.append(end_box[0].tolist())
+            btm_line.append(end_box[3].tolist())
+        elif not self._in_contour(contour, end_right_mid):
+            top_line.append(end_box[1].tolist())
+            btm_line.append(end_box[2].tolist())
+        return top_line, btm_line
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/fce_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/fce_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..b6c49bf433224284da715c1589a3041fe445bb97
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/fce_postprocessor.py
@@ -0,0 +1,239 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Sequence
+
+import cv2
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from numpy.fft import ifft
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import fill_hole
+from .base import BaseTextDetPostProcessor
+
+
+@MODELS.register_module()
+class FCEPostprocessor(BaseTextDetPostProcessor):
+    """Decoding predictions of FCENet to instances.
+
+    Args:
+        fourier_degree (int): The maximum Fourier transform degree k.
+        num_reconstr_points (int): The points number of the polygon
+            reconstructed from predicted Fourier coefficients.
+        rescale_fields (list[str]): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed. Defaults to
+            ['polygons'].
+        scales (list[int]) : The down-sample scale of each layer. Defaults
+            to [8, 16, 32].
+        text_repr_type (str): Boundary encoding type 'poly' or 'quad'. Defaults
+            to 'poly'.
+         alpha (float): The parameter to calculate final scores
+            :math:`Score_{final} = (Score_{text region} ^ alpha)
+            * (Score_{text center_region}^ beta)`. Defaults to 1.0.
+        beta (float): The parameter to calculate final score. Defaults to 2.0.
+        score_thr (float): The threshold used to filter out the final
+            candidates.Defaults to 0.3.
+        nms_thr (float): The threshold of nms. Defaults to 0.1.
+    """
+
+    def __init__(self,
+                 fourier_degree: int,
+                 num_reconstr_points: int,
+                 rescale_fields: Sequence[str] = ['polygons'],
+                 scales: Sequence[int] = [8, 16, 32],
+                 text_repr_type: str = 'poly',
+                 alpha: float = 1.0,
+                 beta: float = 2.0,
+                 score_thr: float = 0.3,
+                 nms_thr: float = 0.1,
+                 **kwargs) -> None:
+        super().__init__(
+            text_repr_type=text_repr_type,
+            rescale_fields=rescale_fields,
+            **kwargs)
+        self.fourier_degree = fourier_degree
+        self.num_reconstr_points = num_reconstr_points
+        self.scales = scales
+        self.alpha = alpha
+        self.beta = beta
+        self.score_thr = score_thr
+        self.nms_thr = nms_thr
+
+    def split_results(self, pred_results: List[Dict]) -> List[List[Dict]]:
+        """Split batched elements in pred_results along the first dimension
+        into ``batch_num`` sub-elements and regather them into a list of dicts.
+
+        Args:
+            pred_results (list[dict]): A list of dict with keys of ``cls_res``,
+                ``reg_res`` corresponding to the classification result and
+                regression result computed from the input tensor with the
+                same index. They have the shapes of :math:`(N, C_{cls,i},
+                H_i, W_i)` and :math:`(N, C_{out,i}, H_i, W_i)`.
+
+        Returns:
+            list[list[dict]]: N lists. Each list contains three dicts from
+            different feature level.
+        """
+        assert isinstance(pred_results, list) and len(pred_results) == len(
+            self.scales)
+
+        fields = list(pred_results[0].keys())
+        batch_num = len(pred_results[0][fields[0]])
+        level_num = len(pred_results)
+        results = []
+        for i in range(batch_num):
+            batch_list = []
+            for level in range(level_num):
+                feat_dict = {}
+                for field in fields:
+                    feat_dict[field] = pred_results[level][field][i]
+                batch_list.append(feat_dict)
+            results.append(batch_list)
+        return results
+
+    def get_text_instances(self, pred_results: Sequence[Dict],
+                           data_sample: TextDetDataSample
+                           ) -> TextDetDataSample:
+        """Get text instance predictions of one image.
+
+        Args:
+            pred_results (List[dict]): A list of dict with keys of ``cls_res``,
+                ``reg_res`` corresponding to the classification result and
+                regression result computed from the input tensor with the
+                same index. They have the shapes of :math:`(N, C_{cls,i}, H_i,
+                W_i)` and :math:`(N, C_{out,i}, H_i, W_i)`.
+            data_sample (TextDetDataSample): Datasample of an image.
+
+        Returns:
+            TextDetDataSample: A new DataSample with predictions filled in.
+            Polygons and results are saved in
+            ``TextDetDataSample.pred_instances.polygons``. The confidence
+            scores are saved in ``TextDetDataSample.pred_instances.scores``.
+        """
+        assert len(pred_results) == len(self.scales)
+        data_sample.pred_instances = InstanceData()
+        data_sample.pred_instances.polygons = []
+        data_sample.pred_instances.scores = []
+
+        result_polys = []
+        result_scores = []
+        for idx, pred_result in enumerate(pred_results):
+            # TODO: Scale can be calculated given image shape and feature
+            # shape. This param can be removed in the future.
+            polygons, scores = self._get_text_instances_single(
+                pred_result, self.scales[idx])
+            result_polys += polygons
+            result_scores += scores
+        result_polys, result_scores = self.poly_nms(result_polys,
+                                                    result_scores,
+                                                    self.nms_thr)
+        for result_poly, result_score in zip(result_polys, result_scores):
+            result_poly = np.array(result_poly, dtype=np.float32)
+            data_sample.pred_instances.polygons.append(result_poly)
+            data_sample.pred_instances.scores.append(result_score)
+        data_sample.pred_instances.scores = torch.FloatTensor(
+            data_sample.pred_instances.scores)
+
+        return data_sample
+
+    def _get_text_instances_single(self, pred_result: Dict, scale: int):
+        """Get text instance predictions from one feature level.
+
+        Args:
+            pred_result (dict): A dict with keys of ``cls_res``, ``reg_res``
+                corresponding to the classification result and regression
+                result computed from the input tensor with the same index.
+                They have the shapes of :math:`(1, C_{cls,i}, H_i, W_i)` and
+                :math:`(1, C_{out,i}, H_i, W_i)`.
+            scale (int): Scale of current feature map which equals to
+                img_size / feat_size.
+
+        Returns:
+            result_polys (list[ndarray]): A list of polygons after postprocess.
+            result_scores (list[ndarray]): A list of scores after postprocess.
+        """
+
+        cls_pred = pred_result['cls_res']
+        tr_pred = cls_pred[0:2].softmax(dim=0).data.cpu().numpy()
+        tcl_pred = cls_pred[2:].softmax(dim=0).data.cpu().numpy()
+
+        reg_pred = pred_result['reg_res'].permute(1, 2, 0).data.cpu().numpy()
+        x_pred = reg_pred[:, :, :2 * self.fourier_degree + 1]
+        y_pred = reg_pred[:, :, 2 * self.fourier_degree + 1:]
+
+        score_pred = (tr_pred[1]**self.alpha) * (tcl_pred[1]**self.beta)
+        tr_pred_mask = (score_pred) > self.score_thr
+        tr_mask = fill_hole(tr_pred_mask)
+
+        tr_contours, _ = cv2.findContours(
+            tr_mask.astype(np.uint8), cv2.RETR_TREE,
+            cv2.CHAIN_APPROX_SIMPLE)  # opencv4
+
+        mask = np.zeros_like(tr_mask)
+
+        result_polys = []
+        result_scores = []
+        for cont in tr_contours:
+            deal_map = mask.copy().astype(np.int8)
+            cv2.drawContours(deal_map, [cont], -1, 1, -1)
+
+            score_map = score_pred * deal_map
+            score_mask = score_map > 0
+            xy_text = np.argwhere(score_mask)
+            dxy = xy_text[:, 1] + xy_text[:, 0] * 1j
+
+            x, y = x_pred[score_mask], y_pred[score_mask]
+            c = x + y * 1j
+            c[:, self.fourier_degree] = c[:, self.fourier_degree] + dxy
+            c *= scale
+
+            polygons = self._fourier2poly(c, self.num_reconstr_points)
+            scores = score_map[score_mask].reshape(-1, 1).tolist()
+            polygons, scores = self.poly_nms(polygons, scores, self.nms_thr)
+            result_polys += polygons
+            result_scores += scores
+
+        result_polys, result_scores = self.poly_nms(result_polys,
+                                                    result_scores,
+                                                    self.nms_thr)
+
+        if self.text_repr_type == 'quad':
+            new_polys = []
+            for poly in result_polys:
+                poly = np.array(poly).reshape(-1, 2).astype(np.float32)
+                points = cv2.boxPoints(cv2.minAreaRect(poly))
+                points = np.int0(points)
+                new_polys.append(points.reshape(-1))
+
+            return new_polys, result_scores
+        return result_polys, result_scores
+
+    def _fourier2poly(self,
+                      fourier_coeff: np.ndarray,
+                      num_reconstr_points: int = 50):
+        """ Inverse Fourier transform
+            Args:
+                fourier_coeff (ndarray): Fourier coefficients shaped (n, 2k+1),
+                    with n and k being candidates number and Fourier degree
+                    respectively.
+                num_reconstr_points (int): Number of reconstructed polygon
+                    points. Defaults to 50.
+
+            Returns:
+                List[ndarray]: The reconstructed polygons.
+            """
+
+        a = np.zeros((len(fourier_coeff), num_reconstr_points),
+                     dtype='complex')
+        k = (len(fourier_coeff[0]) - 1) // 2
+
+        a[:, 0:k + 1] = fourier_coeff[:, k:]
+        a[:, -k:] = fourier_coeff[:, :k]
+
+        poly_complex = ifft(a) * num_reconstr_points
+        polygon = np.zeros((len(fourier_coeff), num_reconstr_points, 2))
+        polygon[:, :, 0] = poly_complex.real
+        polygon[:, :, 1] = poly_complex.imag
+        return polygon.astype('int32').reshape(
+            (len(fourier_coeff), -1)).tolist()
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/pan_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/pan_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..63676856bebd78dfc97156739a2745e51cb272da
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/pan_postprocessor.py
@@ -0,0 +1,159 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List, Sequence
+
+import cv2
+import numpy as np
+import torch
+from mmcv.ops import pixel_group
+from mmengine.structures import InstanceData
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from .base import BaseTextDetPostProcessor
+
+
+@MODELS.register_module()
+class PANPostprocessor(BaseTextDetPostProcessor):
+    """Convert scores to quadrangles via post processing in PANet. This is
+    partially adapted from https://github.com/WenmuZhou/PAN.pytorch.
+
+    Args:
+        text_repr_type (str): The boundary encoding type 'poly' or 'quad'.
+            Defaults to 'poly'.
+        score_threshold (float): The minimal text score.
+            Defaults to 0.3.
+        rescale_fields (list[str]): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed. Defaults to
+            ['polygons'].
+        min_text_confidence (float): The minimal text confidence.
+            Defaults to 0.5.
+        min_kernel_confidence (float): The minimal kernel confidence.
+            Defaults to 0.5.
+        distance_threshold (float): The minimal distance between the point to
+            mean of text kernel. Defaults to 3.0.
+        min_text_area (int): The minimal text instance region area.
+            Defaults to 16.
+        downsample_ratio (float): Downsample ratio. Defaults to 0.25.
+    """
+
+    def __init__(self,
+                 text_repr_type: str = 'poly',
+                 score_threshold: float = 0.3,
+                 rescale_fields: Sequence[str] = ['polygons'],
+                 min_text_confidence: float = 0.5,
+                 min_kernel_confidence: float = 0.5,
+                 distance_threshold: float = 3.0,
+                 min_text_area: int = 16,
+                 downsample_ratio: float = 0.25) -> None:
+        super().__init__(text_repr_type, rescale_fields)
+
+        self.min_text_confidence = min_text_confidence
+        self.min_kernel_confidence = min_kernel_confidence
+        self.score_threshold = score_threshold
+        self.min_text_area = min_text_area
+        self.distance_threshold = distance_threshold
+        self.downsample_ratio = downsample_ratio
+
+    def get_text_instances(self, pred_results: torch.Tensor,
+                           data_sample: TextDetDataSample,
+                           **kwargs) -> TextDetDataSample:
+        """Get text instance predictions of one image.
+
+        Args:
+            pred_result (torch.Tensor): Prediction results of an image which
+                is a tensor of shape :math:`(N, H, W)`.
+            data_sample (TextDetDataSample): Datasample of an image.
+
+        Returns:
+            TextDetDataSample: A new DataSample with predictions filled in.
+            Polygons and results are saved in
+            ``TextDetDataSample.pred_instances.polygons``. The confidence
+            scores are saved in ``TextDetDataSample.pred_instances.scores``.
+        """
+        assert pred_results.dim() == 3
+
+        pred_results[:2, :, :] = torch.sigmoid(pred_results[:2, :, :])
+        pred_results = pred_results.detach().cpu().numpy()
+
+        text_score = pred_results[0].astype(np.float32)
+        text = pred_results[0] > self.min_text_confidence
+        kernel = (pred_results[1] > self.min_kernel_confidence) * text
+        embeddings = pred_results[2:] * text.astype(np.float32)
+        embeddings = embeddings.transpose((1, 2, 0))  # (h, w, 4)
+
+        region_num, labels = cv2.connectedComponents(
+            kernel.astype(np.uint8), connectivity=4)
+        contours, _ = cv2.findContours((kernel * 255).astype(np.uint8),
+                                       cv2.RETR_LIST, cv2.CHAIN_APPROX_NONE)
+        kernel_contours = np.zeros(text.shape, dtype='uint8')
+        cv2.drawContours(kernel_contours, contours, -1, 255)
+        text_points = pixel_group(text_score, text, embeddings, labels,
+                                  kernel_contours, region_num,
+                                  self.distance_threshold)
+
+        polygons = []
+        scores = []
+        for text_point in text_points:
+            text_confidence = text_point[0]
+            text_point = text_point[2:]
+            text_point = np.array(text_point, dtype=int).reshape(-1, 2)
+            area = text_point.shape[0]
+            if (area < self.min_text_area
+                    or text_confidence <= self.score_threshold):
+                continue
+
+            polygon = self._points2boundary(text_point)
+            if len(polygon) > 0:
+                polygons.append(polygon)
+                scores.append(text_confidence)
+        pred_instances = InstanceData()
+        pred_instances.polygons = polygons
+        pred_instances.scores = torch.FloatTensor(scores)
+        data_sample.pred_instances = pred_instances
+        scale_factor = data_sample.scale_factor
+        scale_factor = tuple(factor * self.downsample_ratio
+                             for factor in scale_factor)
+        data_sample.set_metainfo(dict(scale_factor=scale_factor))
+        return data_sample
+
+    def _points2boundary(self,
+                         points: np.ndarray,
+                         min_width: int = 0) -> List[float]:
+        """Convert a text mask represented by point coordinates sequence into a
+        text boundary.
+
+        Args:
+            points (ndarray): Mask index of size (n, 2).
+            min_width (int): Minimum bounding box width to be converted. Only
+                applicable to 'quad' type. Defaults to 0.
+
+        Returns:
+            list[float]: The text boundary point coordinates (x, y) list.
+            Return [] if no text boundary found.
+        """
+        assert isinstance(points, np.ndarray)
+        assert points.shape[1] == 2
+        assert self.text_repr_type in ['quad', 'poly']
+
+        if self.text_repr_type == 'quad':
+            rect = cv2.minAreaRect(points)
+            vertices = cv2.boxPoints(rect)
+            boundary = []
+            if min(rect[1]) >= min_width:
+                boundary = [p for p in vertices.flatten().tolist()]
+        elif self.text_repr_type == 'poly':
+
+            height = np.max(points[:, 1]) + 10
+            width = np.max(points[:, 0]) + 10
+
+            mask = np.zeros((height, width), np.uint8)
+            mask[points[:, 1], points[:, 0]] = 255
+
+            contours, _ = cv2.findContours(mask, cv2.RETR_EXTERNAL,
+                                           cv2.CHAIN_APPROX_SIMPLE)
+            boundary = list(contours[0].flatten().tolist())
+
+        if len(boundary) < 8:
+            return []
+
+        return boundary
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/pse_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/pse_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..b0a1fb9f8a2dde54dfa71e0d531f0e85fb74d1c6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/pse_postprocessor.py
@@ -0,0 +1,113 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from typing import List
+
+import cv2
+import numpy as np
+import torch
+from mmcv.ops import contour_expand
+from mmengine.structures import InstanceData
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from .pan_postprocessor import PANPostprocessor
+
+
+@MODELS.register_module()
+class PSEPostprocessor(PANPostprocessor):
+    """Decoding predictions of PSENet to instances. This is partially adapted
+    from https://github.com/whai362/PSENet.
+
+    Args:
+        text_repr_type (str): The boundary encoding type 'poly' or 'quad'.
+            Defaults to 'poly'.
+        rescale_fields (list[str]): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed. Defaults to
+            ['polygons'].
+        min_kernel_confidence (float): The minimal kernel confidence.
+            Defaults to 0.5.
+        score_threshold (float): The minimal text average confidence.
+            Defaults to 0.3.
+        min_kernel_area (int): The minimal text kernel area. Defaults to 0.
+        min_text_area (int): The minimal text instance region area.
+            Defaults to 16.
+        downsample_ratio (float): Downsample ratio. Defaults to 0.25.
+    """
+
+    def __init__(self,
+                 text_repr_type: str = 'poly',
+                 rescale_fields: List[str] = ['polygons'],
+                 min_kernel_confidence: float = 0.5,
+                 score_threshold: float = 0.3,
+                 min_kernel_area: int = 0,
+                 min_text_area: int = 16,
+                 downsample_ratio: float = 0.25) -> None:
+        super().__init__(
+            text_repr_type=text_repr_type,
+            rescale_fields=rescale_fields,
+            min_kernel_confidence=min_kernel_confidence,
+            score_threshold=score_threshold,
+            min_text_area=min_text_area,
+            downsample_ratio=downsample_ratio)
+        self.min_kernel_area = min_kernel_area
+
+    def get_text_instances(self, pred_results: torch.Tensor,
+                           data_sample: TextDetDataSample,
+                           **kwargs) -> TextDetDataSample:
+        """
+        Args:
+            pred_result (torch.Tensor): Prediction results of an image which
+                is a tensor of shape :math:`(N, H, W)`.
+            data_sample (TextDetDataSample): Datasample of an image.
+
+        Returns:
+            TextDetDataSample: A new DataSample with predictions filled in.
+            Polygons and results are saved in
+            ``TextDetDataSample.pred_instances.polygons``. The confidence
+            scores are saved in ``TextDetDataSample.pred_instances.scores``.
+        """
+        assert pred_results.dim() == 3
+
+        pred_results = torch.sigmoid(pred_results)  # text confidence
+
+        masks = pred_results > self.min_kernel_confidence
+        text_mask = masks[0, :, :]
+        kernel_masks = masks[0:, :, :] * text_mask
+        kernel_masks = kernel_masks.data.cpu().numpy().astype(np.uint8)
+
+        score = pred_results[0, :, :]
+        score = score.data.cpu().numpy().astype(np.float32)
+
+        region_num, labels = cv2.connectedComponents(
+            kernel_masks[-1], connectivity=4)
+
+        labels = contour_expand(kernel_masks, labels, self.min_kernel_area,
+                                region_num)
+        labels = np.array(labels)
+        label_num = np.max(labels)
+
+        polygons = []
+        scores = []
+        for i in range(1, label_num + 1):
+            points = np.array(np.where(labels == i)).transpose((1, 0))[:, ::-1]
+            area = points.shape[0]
+            score_instance = np.mean(score[labels == i])
+            if not (area >= self.min_text_area
+                    or score_instance > self.score_threshold):
+                continue
+
+            polygon = self._points2boundary(points)
+            if polygon:
+                polygons.append(polygon)
+                scores.append(score_instance)
+
+        pred_instances = InstanceData()
+        pred_instances.polygons = polygons
+        pred_instances.scores = torch.FloatTensor(scores)
+        data_sample.pred_instances = pred_instances
+        scale_factor = data_sample.scale_factor
+        scale_factor = tuple(factor * self.downsample_ratio
+                             for factor in scale_factor)
+        data_sample.set_metainfo(dict(scale_factor=scale_factor))
+
+        return data_sample
diff --git a/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/textsnake_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/textsnake_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..a4f7ae02ee33688925d799df6ed303b61be59bd1
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textdet/postprocessors/textsnake_postprocessor.py
@@ -0,0 +1,234 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from typing import List, Sequence
+
+import cv2
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from numpy.linalg import norm
+from skimage.morphology import skeletonize
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import fill_hole
+from .base import BaseTextDetPostProcessor
+
+
+@MODELS.register_module()
+class TextSnakePostprocessor(BaseTextDetPostProcessor):
+    """Decoding predictions of TextSnake to instances. This was partially
+    adapted from https://github.com/princewang1994/TextSnake.pytorch.
+
+    Args:
+        text_repr_type (str): The boundary encoding type 'poly' or 'quad'.
+        min_text_region_confidence (float): The confidence threshold of text
+            region in TextSnake.
+        min_center_region_confidence (float): The confidence threshold of text
+            center region in TextSnake.
+        min_center_area (int): The minimal text center region area.
+        disk_overlap_thr (float): The radius overlap threshold for merging
+            disks.
+        radius_shrink_ratio (float): The shrink ratio of ordered disks radii.
+        rescale_fields (list[str], optional): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed.
+    """
+
+    def __init__(self,
+                 text_repr_type: str = 'poly',
+                 min_text_region_confidence: float = 0.6,
+                 min_center_region_confidence: float = 0.2,
+                 min_center_area: int = 30,
+                 disk_overlap_thr: float = 0.03,
+                 radius_shrink_ratio: float = 1.03,
+                 rescale_fields: Sequence[str] = ['polygons'],
+                 **kwargs) -> None:
+        super().__init__(
+            text_repr_type=text_repr_type,
+            rescale_fields=rescale_fields,
+            **kwargs)
+        assert text_repr_type == 'poly'
+        self.min_text_region_confidence = min_text_region_confidence
+        self.min_center_region_confidence = min_center_region_confidence
+        self.min_center_area = min_center_area
+        self.disk_overlap_thr = disk_overlap_thr
+        self.radius_shrink_ratio = radius_shrink_ratio
+
+    def get_text_instances(self, pred_results: torch.Tensor,
+                           data_sample: TextDetDataSample
+                           ) -> TextDetDataSample:
+        """
+        Args:
+            pred_results (torch.Tensor): Prediction map with
+                shape :math:`(C, H, W)`.
+            data_sample (TextDetDataSample): Datasample of an image.
+
+        Returns:
+            list[list[float]]: The instance boundary and its confidence.
+        """
+        assert pred_results.dim() == 3
+        data_sample.pred_instances = InstanceData()
+        data_sample.pred_instances.polygons = []
+        data_sample.pred_instances.scores = []
+
+        pred_results[:2, :, :] = torch.sigmoid(pred_results[:2, :, :])
+        pred_results = pred_results.detach().cpu().numpy()
+
+        pred_text_score = pred_results[0]
+        pred_text_mask = pred_text_score > self.min_text_region_confidence
+        pred_center_score = pred_results[1] * pred_text_score
+        pred_center_mask = \
+            pred_center_score > self.min_center_region_confidence
+        pred_sin = pred_results[2]
+        pred_cos = pred_results[3]
+        pred_radius = pred_results[4]
+        mask_sz = pred_text_mask.shape
+
+        scale = np.sqrt(1.0 / (pred_sin**2 + pred_cos**2 + 1e-8))
+        pred_sin = pred_sin * scale
+        pred_cos = pred_cos * scale
+
+        pred_center_mask = fill_hole(pred_center_mask).astype(np.uint8)
+        center_contours, _ = cv2.findContours(pred_center_mask, cv2.RETR_TREE,
+                                              cv2.CHAIN_APPROX_SIMPLE)
+
+        for contour in center_contours:
+            if cv2.contourArea(contour) < self.min_center_area:
+                continue
+            instance_center_mask = np.zeros(mask_sz, dtype=np.uint8)
+            cv2.drawContours(instance_center_mask, [contour], -1, 1, -1)
+            skeleton = skeletonize(instance_center_mask)
+            skeleton_yx = np.argwhere(skeleton > 0)
+            y, x = skeleton_yx[:, 0], skeleton_yx[:, 1]
+            cos = pred_cos[y, x].reshape((-1, 1))
+            sin = pred_sin[y, x].reshape((-1, 1))
+            radius = pred_radius[y, x].reshape((-1, 1))
+
+            center_line_yx = self._centralize(skeleton_yx, cos, -sin, radius,
+                                              instance_center_mask)
+            y, x = center_line_yx[:, 0], center_line_yx[:, 1]
+            radius = (pred_radius[y, x] * self.radius_shrink_ratio).reshape(
+                (-1, 1))
+            score = pred_center_score[y, x].reshape((-1, 1))
+            instance_disks = np.hstack(
+                [np.fliplr(center_line_yx), radius, score])
+            instance_disks = self._merge_disks(instance_disks,
+                                               self.disk_overlap_thr)
+
+            instance_mask = np.zeros(mask_sz, dtype=np.uint8)
+            for x, y, radius, score in instance_disks:
+                if radius > 1:
+                    cv2.circle(instance_mask, (int(x), int(y)), int(radius), 1,
+                               -1)
+            contours, _ = cv2.findContours(instance_mask, cv2.RETR_TREE,
+                                           cv2.CHAIN_APPROX_SIMPLE)
+
+            score = np.sum(instance_mask * pred_text_score) / (
+                np.sum(instance_mask) + 1e-8)
+            if (len(contours) > 0 and cv2.contourArea(contours[0]) > 0
+                    and contours[0].size > 8):
+                polygon = contours[0].flatten().tolist()
+                data_sample.pred_instances.polygons.append(polygon)
+                data_sample.pred_instances.scores.append(score)
+
+        data_sample.pred_instances.scores = torch.FloatTensor(
+            data_sample.pred_instances.scores)
+
+        return data_sample
+
+    def split_results(self, pred_results: torch.Tensor) -> List[torch.Tensor]:
+        """Split the prediction results into text score and kernel score.
+
+        Args:
+            pred_results (torch.Tensor): The prediction results.
+
+        Returns:
+            List[torch.Tensor]: The text score and kernel score.
+        """
+        pred_results = [pred_result for pred_result in pred_results]
+        return pred_results
+
+    @staticmethod
+    def _centralize(points_yx: np.ndarray,
+                    normal_cos: torch.Tensor,
+                    normal_sin: torch.Tensor,
+                    radius: torch.Tensor,
+                    contour_mask: np.ndarray,
+                    step_ratio: float = 0.03) -> np.ndarray:
+        """Centralize the points.
+
+        Args:
+            points_yx (np.array): The points in yx order.
+            normal_cos (torch.Tensor): The normal cosine of the points.
+            normal_sin (torch.Tensor): The normal sine of the points.
+            radius (torch.Tensor): The radius of the points.
+            contour_mask (np.array): The contour mask of the points.
+            step_ratio (float): The step ratio of the centralization.
+                Defaults to 0.03.
+
+        Returns:
+            np.ndarray: The centralized points.
+        """
+
+        h, w = contour_mask.shape
+        top_yx = bot_yx = points_yx
+        step_flags = np.ones((len(points_yx), 1), dtype=np.bool_)
+        step = step_ratio * radius * np.hstack([normal_cos, normal_sin])
+        while np.any(step_flags):
+            next_yx = np.array(top_yx + step, dtype=np.int32)
+            next_y, next_x = next_yx[:, 0], next_yx[:, 1]
+            step_flags = (next_y >= 0) & (next_y < h) & (next_x > 0) & (
+                next_x < w) & contour_mask[np.clip(next_y, 0, h - 1),
+                                           np.clip(next_x, 0, w - 1)]
+            top_yx = top_yx + step_flags.reshape((-1, 1)) * step
+        step_flags = np.ones((len(points_yx), 1), dtype=np.bool_)
+        while np.any(step_flags):
+            next_yx = np.array(bot_yx - step, dtype=np.int32)
+            next_y, next_x = next_yx[:, 0], next_yx[:, 1]
+            step_flags = (next_y >= 0) & (next_y < h) & (next_x > 0) & (
+                next_x < w) & contour_mask[np.clip(next_y, 0, h - 1),
+                                           np.clip(next_x, 0, w - 1)]
+            bot_yx = bot_yx - step_flags.reshape((-1, 1)) * step
+        centers = np.array((top_yx + bot_yx) * 0.5, dtype=np.int32)
+        return centers
+
+    @staticmethod
+    def _merge_disks(disks: np.ndarray, disk_overlap_thr: float) -> np.ndarray:
+        """Merging overlapped disks.
+
+        Args:
+            disks (np.ndarray): The predicted disks.
+            disk_overlap_thr (float): The radius overlap threshold for merging
+                disks.
+
+        Returns:
+            np.ndarray: The merged disks.
+        """
+        xy = disks[:, 0:2]
+        radius = disks[:, 2]
+        scores = disks[:, 3]
+        order = scores.argsort()[::-1]
+
+        merged_disks = []
+        while order.size > 0:
+            if order.size == 1:
+                merged_disks.append(disks[order])
+                break
+            i = order[0]
+            d = norm(xy[i] - xy[order[1:]], axis=1)
+            ri = radius[i]
+            r = radius[order[1:]]
+            d_thr = (ri + r) * disk_overlap_thr
+
+            merge_inds = np.where(d <= d_thr)[0] + 1
+            if merge_inds.size > 0:
+                merge_order = np.hstack([i, order[merge_inds]])
+                merged_disks.append(np.mean(disks[merge_order], axis=0))
+            else:
+                merged_disks.append(disks[i])
+
+            inds = np.where(d > d_thr)[0] + 1
+            order = order[inds]
+        merged_disks = np.vstack(merged_disks)
+
+        return merged_disks
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e573c71efd65c3c94fe7e10c2031bae88cb9fc90
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/__init__.py
@@ -0,0 +1,11 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .backbones import *  # NOQA
+from .data_preprocessors import *  # NOQA
+from .decoders import *  # NOQA
+from .encoders import *  # NOQA
+from .layers import *  # NOQA
+from .module_losses import *  # NOQA
+from .plugins import *  # NOQA
+from .postprocessors import *  # NOQA
+from .preprocessors import *  # NOQA
+from .recognizers import *  # NOQA
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..3201de3884b6582bd466daee1d0e8721075f5bac
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .mini_vgg import MiniVGG
+from .mobilenet_v2 import MobileNetV2
+from .nrtr_modality_transformer import NRTRModalityTransform
+from .resnet import ResNet
+from .resnet31_ocr import ResNet31OCR
+from .resnet_abi import ResNetABI
+from .shallow_cnn import ShallowCNN
+
+__all__ = [
+    'ResNet31OCR', 'MiniVGG', 'NRTRModalityTransform', 'ShallowCNN',
+    'ResNetABI', 'ResNet', 'MobileNetV2'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/mini_vgg.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/mini_vgg.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed3601c1b4936cea459c6f0ac67042907fbc846c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/mini_vgg.py
@@ -0,0 +1,79 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+from mmengine.model import BaseModule, Sequential
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class MiniVGG(BaseModule):
+    """A mini VGG backbone for text recognition, modified from `VGG-VeryDeep.
+
+    <https://arxiv.org/pdf/1409.1556.pdf>`_
+
+    Args:
+        leaky_relu (bool): Use leakyRelu or not.
+        input_channels (int): Number of channels of input image tensor.
+    """
+
+    def __init__(self,
+                 leaky_relu=True,
+                 input_channels=3,
+                 init_cfg=[
+                     dict(type='Xavier', layer='Conv2d'),
+                     dict(type='Uniform', layer='BatchNorm2d')
+                 ]):
+        super().__init__(init_cfg=init_cfg)
+
+        ks = [3, 3, 3, 3, 3, 3, 2]
+        ps = [1, 1, 1, 1, 1, 1, 0]
+        ss = [1, 1, 1, 1, 1, 1, 1]
+        nm = [64, 128, 256, 256, 512, 512, 512]
+
+        self.channels = nm
+
+        # cnn = nn.Sequential()
+        cnn = Sequential()
+
+        def conv_relu(i, batch_normalization=False):
+            n_in = input_channels if i == 0 else nm[i - 1]
+            n_out = nm[i]
+            cnn.add_module(f'conv{i}',
+                           nn.Conv2d(n_in, n_out, ks[i], ss[i], ps[i]))
+            if batch_normalization:
+                cnn.add_module(f'batchnorm{i}', nn.BatchNorm2d(n_out))
+            if leaky_relu:
+                cnn.add_module(f'relu{i}', nn.LeakyReLU(0.2, inplace=True))
+            else:
+                cnn.add_module(f'relu{i}', nn.ReLU(True))
+
+        conv_relu(0)
+        cnn.add_module(f'pooling{0}', nn.MaxPool2d(2, 2))  # 64x16x64
+        conv_relu(1)
+        cnn.add_module(f'pooling{1}', nn.MaxPool2d(2, 2))  # 128x8x32
+        conv_relu(2, True)
+        conv_relu(3)
+        cnn.add_module(f'pooling{2}', nn.MaxPool2d((2, 2), (2, 1),
+                                                   (0, 1)))  # 256x4x16
+        conv_relu(4, True)
+        conv_relu(5)
+        cnn.add_module(f'pooling{3}', nn.MaxPool2d((2, 2), (2, 1),
+                                                   (0, 1)))  # 512x2x16
+        conv_relu(6, True)  # 512x1x16
+
+        self.cnn = cnn
+
+    def out_channels(self):
+        return self.channels[-1]
+
+    def forward(self, x):
+        """
+        Args:
+            x (Tensor): Images of shape :math:`(N, C, H, W)`.
+
+        Returns:
+            Tensor: The feature Tensor of shape :math:`(N, 512, H/32, (W/4+1)`.
+        """
+        output = self.cnn(x)
+
+        return output
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/mobilenet_v2.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/mobilenet_v2.py
new file mode 100644
index 0000000000000000000000000000000000000000..b0c671645f48773baa3df75a3ed868ca31c56a83
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/mobilenet_v2.py
@@ -0,0 +1,43 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List
+
+import torch.nn as nn
+from mmdet.models.backbones import MobileNetV2 as MMDet_MobileNetV2
+from torch import Tensor
+
+from mmocr.registry import MODELS
+from mmocr.utils.typing_utils import InitConfigType
+
+
+@MODELS.register_module()
+class MobileNetV2(MMDet_MobileNetV2):
+    """See mmdet.models.backbones.MobileNetV2 for details.
+
+    Args:
+        pooling_layers (list): List of indices of pooling layers.
+        init_cfg (InitConfigType, optional): Initialization config dict.
+    """
+    # Parameters to build layers. 4 parameters are needed to construct a
+    # layer, from left to right: expand_ratio, channel, num_blocks, stride.
+    arch_settings = [[1, 16, 1, 1], [6, 24, 2, 2], [6, 32, 3, 1],
+                     [6, 64, 4, 1], [6, 96, 3, 1], [6, 160, 3, 1],
+                     [6, 320, 1, 1]]
+
+    def __init__(self,
+                 pooling_layers: List = [3, 4, 5],
+                 init_cfg: InitConfigType = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.pooling = nn.MaxPool2d((2, 2), (2, 1), (0, 1))
+        self.pooling_layers = pooling_layers
+
+    def forward(self, x: Tensor) -> Tensor:
+        """Forward function."""
+
+        x = self.conv1(x)
+        for i, layer_name in enumerate(self.layers):
+            layer = getattr(self, layer_name)
+            x = layer(x)
+            if i in self.pooling_layers:
+                x = self.pooling(x)
+
+        return x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/nrtr_modality_transformer.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/nrtr_modality_transformer.py
new file mode 100644
index 0000000000000000000000000000000000000000..35f4f9c3f2e0e7f874620cfad643bfcbcb5cd0c5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/nrtr_modality_transformer.py
@@ -0,0 +1,75 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from mmengine.model import BaseModule
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class NRTRModalityTransform(BaseModule):
+    """Modality transform in NRTR.
+
+    Args:
+        in_channels (int): Input channel of image. Defaults to 3.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        in_channels: int = 3,
+        init_cfg: Optional[Union[Dict, Sequence[Dict]]] = [
+            dict(type='Kaiming', layer='Conv2d'),
+            dict(type='Uniform', layer='BatchNorm2d')
+        ]
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+
+        self.conv_1 = nn.Conv2d(
+            in_channels=in_channels,
+            out_channels=32,
+            kernel_size=3,
+            stride=2,
+            padding=1)
+        self.relu_1 = nn.ReLU(True)
+        self.bn_1 = nn.BatchNorm2d(32)
+
+        self.conv_2 = nn.Conv2d(
+            in_channels=32,
+            out_channels=64,
+            kernel_size=3,
+            stride=2,
+            padding=1)
+        self.relu_2 = nn.ReLU(True)
+        self.bn_2 = nn.BatchNorm2d(64)
+
+        self.linear = nn.Linear(512, 512)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Backbone forward.
+
+        Args:
+            x (torch.Tensor): Image tensor of shape :math:`(N, C, W, H)`. W, H
+                is the width and height of image.
+        Return:
+            Tensor: Output tensor.
+        """
+        x = self.conv_1(x)
+        x = self.relu_1(x)
+        x = self.bn_1(x)
+
+        x = self.conv_2(x)
+        x = self.relu_2(x)
+        x = self.bn_2(x)
+
+        n, c, h, w = x.size()
+
+        x = x.permute(0, 3, 2, 1).contiguous().view(n, w, h * c)
+
+        x = self.linear(x)
+
+        x = x.permute(0, 2, 1).contiguous().view(n, -1, 1, w)
+
+        return x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet.py
new file mode 100644
index 0000000000000000000000000000000000000000..bb17a8cdcbb732cc04674106fc043560555bec2e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet.py
@@ -0,0 +1,264 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import torch
+from mmcv.cnn import ConvModule, build_plugin_layer
+from mmengine.model import BaseModule, Sequential
+
+import mmocr.utils as utils
+from mmocr.models.textrecog.layers import BasicBlock
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class ResNet(BaseModule):
+    """
+    Args:
+        in_channels (int): Number of channels of input image tensor.
+        stem_channels (list[int]): List of channels in each stem layer. E.g.,
+            [64, 128] stands for 64 and 128 channels in the first and second
+            stem layers.
+        block_cfgs (dict): Configs of block
+        arch_layers (list[int]): List of Block number for each stage.
+        arch_channels (list[int]): List of channels for each stage.
+        strides (Sequence[int] or Sequence[tuple]): Strides of the first block
+            of each stage.
+        out_indices (Sequence[int], optional): Indices of output stages. If not
+            specified, only the last stage will be returned.
+        plugins (dict, optional): Configs of stage plugins
+        init_cfg (dict or list[dict], optional): Initialization config dict.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 stem_channels: List[int],
+                 block_cfgs: dict,
+                 arch_layers: List[int],
+                 arch_channels: List[int],
+                 strides: Union[List[int], List[Tuple]],
+                 out_indices: Optional[List[int]] = None,
+                 plugins: Optional[Dict] = None,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = [
+                     dict(type='Xavier', layer='Conv2d'),
+                     dict(type='Constant', val=1, layer='BatchNorm2d'),
+                 ]):
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(in_channels, int)
+        assert isinstance(stem_channels, int) or utils.is_type_list(
+            stem_channels, int)
+        assert utils.is_type_list(arch_layers, int)
+        assert utils.is_type_list(arch_channels, int)
+        assert utils.is_type_list(strides, tuple) or utils.is_type_list(
+            strides, int)
+        assert len(arch_layers) == len(arch_channels) == len(strides)
+        assert out_indices is None or isinstance(out_indices, (list, tuple))
+
+        self.out_indices = out_indices
+        self._make_stem_layer(in_channels, stem_channels)
+        self.num_stages = len(arch_layers)
+        self.use_plugins = False
+        self.arch_channels = arch_channels
+        self.res_layers = []
+        if plugins is not None:
+            self.plugin_ahead_names = []
+            self.plugin_after_names = []
+            self.use_plugins = True
+        for i, num_blocks in enumerate(arch_layers):
+            stride = strides[i]
+            channel = arch_channels[i]
+
+            if self.use_plugins:
+                self._make_stage_plugins(plugins, stage_idx=i)
+
+            res_layer = self._make_layer(
+                block_cfgs=block_cfgs,
+                inplanes=self.inplanes,
+                planes=channel,
+                blocks=num_blocks,
+                stride=stride,
+            )
+            self.inplanes = channel
+            layer_name = f'layer{i + 1}'
+            self.add_module(layer_name, res_layer)
+            self.res_layers.append(layer_name)
+
+    def _make_layer(self, block_cfgs: Dict, inplanes: int, planes: int,
+                    blocks: int, stride: int) -> Sequential:
+        """Build resnet layer.
+
+        Args:
+            block_cfgs (dict): Configs of blocks.
+            inplanes (int): Number of input channels.
+            planes (int): Number of output channels.
+            blocks (int): Number of blocks.
+            stride (int): Stride of the first block.
+
+        Returns:
+            Sequential: A sequence of blocks.
+        """
+        layers = []
+        downsample = None
+        block_cfgs_ = block_cfgs.copy()
+        if isinstance(stride, int):
+            stride = (stride, stride)
+
+        if stride[0] != 1 or stride[1] != 1 or inplanes != planes:
+            downsample = ConvModule(
+                inplanes,
+                planes,
+                1,
+                stride,
+                norm_cfg=dict(type='BN'),
+                act_cfg=None)
+
+        if block_cfgs_['type'] == 'BasicBlock':
+            block = BasicBlock
+            block_cfgs_.pop('type')
+        else:
+            raise ValueError('{} not implement yet'.format(block['type']))
+
+        layers.append(
+            block(
+                inplanes,
+                planes,
+                stride=stride,
+                downsample=downsample,
+                **block_cfgs_))
+        inplanes = planes
+        for _ in range(1, blocks):
+            layers.append(block(inplanes, planes, **block_cfgs_))
+
+        return Sequential(*layers)
+
+    def _make_stem_layer(self, in_channels: int,
+                         stem_channels: Union[int, List[int]]) -> None:
+        """Make stem layers.
+
+        Args:
+            in_channels (int): Number of input channels.
+            stem_channels (list[int] or int): List of channels in each stem
+                layer. If int, only one stem layer will be created.
+        """
+        if isinstance(stem_channels, int):
+            stem_channels = [stem_channels]
+        stem_layers = []
+        for _, channels in enumerate(stem_channels):
+            stem_layer = ConvModule(
+                in_channels,
+                channels,
+                kernel_size=3,
+                stride=1,
+                padding=1,
+                bias=False,
+                norm_cfg=dict(type='BN'),
+                act_cfg=dict(type='ReLU'))
+            in_channels = channels
+            stem_layers.append(stem_layer)
+        self.stem_layers = Sequential(*stem_layers)
+        self.inplanes = stem_channels[-1]
+
+    def _make_stage_plugins(self, plugins: List[Dict], stage_idx: int) -> None:
+        """Make plugins for ResNet ``stage_idx``th stage.
+
+        Currently we support inserting ``nn.Maxpooling``,
+        ``mmcv.cnn.Convmodule``into the backbone. Originally designed
+        for ResNet31-like architectures.
+
+        Examples:
+            >>> plugins=[
+            ...     dict(cfg=dict(type="Maxpooling", arg=(2,2)),
+            ...          stages=(True, True, False, False),
+            ...          position='before_stage'),
+            ...     dict(cfg=dict(type="Maxpooling", arg=(2,1)),
+            ...          stages=(False, False, True, Flase),
+            ...          position='before_stage'),
+            ...     dict(cfg=dict(
+            ...              type='ConvModule',
+            ...              kernel_size=3,
+            ...              stride=1,
+            ...              padding=1,
+            ...              norm_cfg=dict(type='BN'),
+            ...              act_cfg=dict(type='ReLU')),
+            ...          stages=(True, True, True, True),
+            ...          position='after_stage')]
+
+        Suppose ``stage_idx=1``, the structure of stage would be:
+
+        .. code-block:: none
+
+            Maxpooling -> A set of Basicblocks -> ConvModule
+
+        Args:
+            plugins (list[dict]): List of plugin configs to build.
+            stage_idx (int): Index of stage to build
+        """
+        in_channels = self.arch_channels[stage_idx]
+        self.plugin_ahead_names.append([])
+        self.plugin_after_names.append([])
+        for plugin in plugins:
+            plugin = plugin.copy()
+            stages = plugin.pop('stages', None)
+            position = plugin.pop('position', None)
+            assert stages is None or len(stages) == self.num_stages
+            if stages[stage_idx]:
+                if position == 'before_stage':
+                    name, layer = build_plugin_layer(
+                        plugin['cfg'],
+                        f'_before_stage_{stage_idx+1}',
+                        in_channels=in_channels,
+                        out_channels=in_channels)
+                    self.plugin_ahead_names[stage_idx].append(name)
+                    self.add_module(name, layer)
+                elif position == 'after_stage':
+                    name, layer = build_plugin_layer(
+                        plugin['cfg'],
+                        f'_after_stage_{stage_idx+1}',
+                        in_channels=in_channels,
+                        out_channels=in_channels)
+                    self.plugin_after_names[stage_idx].append(name)
+                    self.add_module(name, layer)
+                else:
+                    raise ValueError('uncorrect plugin position')
+
+    def forward_plugin(self, x: torch.Tensor,
+                       plugin_name: List[str]) -> torch.Tensor:
+        """Forward tensor through plugin.
+
+        Args:
+            x (torch.Tensor): Input tensor.
+            plugin_name (list[str]): Name of plugins.
+
+        Returns:
+            torch.Tensor: Output tensor.
+        """
+        out = x
+        for name in plugin_name:
+            out = getattr(self, name)(out)
+        return out
+
+    def forward(self,
+                x: torch.Tensor) -> Union[torch.Tensor, List[torch.Tensor]]:
+        """
+        Args: x (Tensor): Image tensor of shape :math:`(N, 3, H, W)`.
+
+        Returns:
+            Tensor or list[Tensor]: Feature tensor. It can be a list of
+            feature outputs at specific layers if ``out_indices`` is specified.
+        """
+        x = self.stem_layers(x)
+
+        outs = []
+        for i, layer_name in enumerate(self.res_layers):
+            res_layer = getattr(self, layer_name)
+            if not self.use_plugins:
+                x = res_layer(x)
+                if self.out_indices and i in self.out_indices:
+                    outs.append(x)
+            else:
+                x = self.forward_plugin(x, self.plugin_ahead_names[i])
+                x = res_layer(x)
+                x = self.forward_plugin(x, self.plugin_after_names[i])
+                if self.out_indices and i in self.out_indices:
+                    outs.append(x)
+
+        return tuple(outs) if self.out_indices else x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet31_ocr.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet31_ocr.py
new file mode 100644
index 0000000000000000000000000000000000000000..96ca7b7af7ae9b1ed724d9ae783cf39df5aa6f57
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet31_ocr.py
@@ -0,0 +1,145 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+from mmengine.model import BaseModule, Sequential
+
+import mmocr.utils as utils
+from mmocr.models.textrecog.layers import BasicBlock
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class ResNet31OCR(BaseModule):
+    """Implement ResNet backbone for text recognition, modified from
+      `ResNet <https://arxiv.org/pdf/1512.03385.pdf>`_
+    Args:
+        base_channels (int): Number of channels of input image tensor.
+        layers (list[int]): List of BasicBlock number for each stage.
+        channels (list[int]): List of out_channels of Conv2d layer.
+        out_indices (None | Sequence[int]): Indices of output stages.
+        stage4_pool_cfg (dict): Dictionary to construct and configure
+            pooling layer in stage 4.
+        last_stage_pool (bool): If True, add `MaxPool2d` layer to last stage.
+    """
+
+    def __init__(self,
+                 base_channels=3,
+                 layers=[1, 2, 5, 3],
+                 channels=[64, 128, 256, 256, 512, 512, 512],
+                 out_indices=None,
+                 stage4_pool_cfg=dict(kernel_size=(2, 1), stride=(2, 1)),
+                 last_stage_pool=False,
+                 init_cfg=[
+                     dict(type='Kaiming', layer='Conv2d'),
+                     dict(type='Uniform', layer='BatchNorm2d')
+                 ]):
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(base_channels, int)
+        assert utils.is_type_list(layers, int)
+        assert utils.is_type_list(channels, int)
+        assert out_indices is None or isinstance(out_indices, (list, tuple))
+        assert isinstance(last_stage_pool, bool)
+
+        self.out_indices = out_indices
+        self.last_stage_pool = last_stage_pool
+
+        # conv 1 (Conv, Conv)
+        self.conv1_1 = nn.Conv2d(
+            base_channels, channels[0], kernel_size=3, stride=1, padding=1)
+        self.bn1_1 = nn.BatchNorm2d(channels[0])
+        self.relu1_1 = nn.ReLU(inplace=True)
+
+        self.conv1_2 = nn.Conv2d(
+            channels[0], channels[1], kernel_size=3, stride=1, padding=1)
+        self.bn1_2 = nn.BatchNorm2d(channels[1])
+        self.relu1_2 = nn.ReLU(inplace=True)
+
+        # conv 2 (Max-pooling, Residual block, Conv)
+        self.pool2 = nn.MaxPool2d(
+            kernel_size=2, stride=2, padding=0, ceil_mode=True)
+        self.block2 = self._make_layer(channels[1], channels[2], layers[0])
+        self.conv2 = nn.Conv2d(
+            channels[2], channels[2], kernel_size=3, stride=1, padding=1)
+        self.bn2 = nn.BatchNorm2d(channels[2])
+        self.relu2 = nn.ReLU(inplace=True)
+
+        # conv 3 (Max-pooling, Residual block, Conv)
+        self.pool3 = nn.MaxPool2d(
+            kernel_size=2, stride=2, padding=0, ceil_mode=True)
+        self.block3 = self._make_layer(channels[2], channels[3], layers[1])
+        self.conv3 = nn.Conv2d(
+            channels[3], channels[3], kernel_size=3, stride=1, padding=1)
+        self.bn3 = nn.BatchNorm2d(channels[3])
+        self.relu3 = nn.ReLU(inplace=True)
+
+        # conv 4 (Max-pooling, Residual block, Conv)
+        self.pool4 = nn.MaxPool2d(padding=0, ceil_mode=True, **stage4_pool_cfg)
+        self.block4 = self._make_layer(channels[3], channels[4], layers[2])
+        self.conv4 = nn.Conv2d(
+            channels[4], channels[4], kernel_size=3, stride=1, padding=1)
+        self.bn4 = nn.BatchNorm2d(channels[4])
+        self.relu4 = nn.ReLU(inplace=True)
+
+        # conv 5 ((Max-pooling), Residual block, Conv)
+        self.pool5 = None
+        if self.last_stage_pool:
+            self.pool5 = nn.MaxPool2d(
+                kernel_size=2, stride=2, padding=0, ceil_mode=True)  # 1/16
+        self.block5 = self._make_layer(channels[4], channels[5], layers[3])
+        self.conv5 = nn.Conv2d(
+            channels[5], channels[5], kernel_size=3, stride=1, padding=1)
+        self.bn5 = nn.BatchNorm2d(channels[5])
+        self.relu5 = nn.ReLU(inplace=True)
+
+    def _make_layer(self, input_channels, output_channels, blocks):
+        layers = []
+        for _ in range(blocks):
+            downsample = None
+            if input_channels != output_channels:
+                downsample = Sequential(
+                    nn.Conv2d(
+                        input_channels,
+                        output_channels,
+                        kernel_size=1,
+                        stride=1,
+                        bias=False),
+                    nn.BatchNorm2d(output_channels),
+                )
+            layers.append(
+                BasicBlock(
+                    input_channels, output_channels, downsample=downsample))
+            input_channels = output_channels
+
+        return Sequential(*layers)
+
+    def forward(self, x):
+
+        x = self.conv1_1(x)
+        x = self.bn1_1(x)
+        x = self.relu1_1(x)
+
+        x = self.conv1_2(x)
+        x = self.bn1_2(x)
+        x = self.relu1_2(x)
+
+        outs = []
+        for i in range(4):
+            layer_index = i + 2
+            pool_layer = getattr(self, f'pool{layer_index}')
+            block_layer = getattr(self, f'block{layer_index}')
+            conv_layer = getattr(self, f'conv{layer_index}')
+            bn_layer = getattr(self, f'bn{layer_index}')
+            relu_layer = getattr(self, f'relu{layer_index}')
+
+            if pool_layer is not None:
+                x = pool_layer(x)
+            x = block_layer(x)
+            x = conv_layer(x)
+            x = bn_layer(x)
+            x = relu_layer(x)
+
+            outs.append(x)
+
+        if self.out_indices is not None:
+            return tuple(outs[i] for i in self.out_indices)
+
+        return x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet_abi.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet_abi.py
new file mode 100644
index 0000000000000000000000000000000000000000..ce79758501a34696e14005f0cf8b2cad68c6d7bb
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/resnet_abi.py
@@ -0,0 +1,121 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+from mmengine.model import BaseModule, Sequential
+
+import mmocr.utils as utils
+from mmocr.models.textrecog.layers import BasicBlock
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class ResNetABI(BaseModule):
+    """Implement ResNet backbone for text recognition, modified from `ResNet.
+
+    <https://arxiv.org/pdf/1512.03385.pdf>`_ and
+    `<https://github.com/FangShancheng/ABINet>`_
+
+    Args:
+        in_channels (int): Number of channels of input image tensor.
+        stem_channels (int): Number of stem channels.
+        base_channels (int): Number of base channels.
+        arch_settings  (list[int]): List of BasicBlock number for each stage.
+        strides (Sequence[int]): Strides of the first block of each stage.
+        out_indices (None | Sequence[int]): Indices of output stages. If not
+            specified, only the last stage will be returned.
+        last_stage_pool (bool): If True, add `MaxPool2d` layer to last stage.
+    """
+
+    def __init__(self,
+                 in_channels=3,
+                 stem_channels=32,
+                 base_channels=32,
+                 arch_settings=[3, 4, 6, 6, 3],
+                 strides=[2, 1, 2, 1, 1],
+                 out_indices=None,
+                 last_stage_pool=False,
+                 init_cfg=[
+                     dict(type='Xavier', layer='Conv2d'),
+                     dict(type='Constant', val=1, layer='BatchNorm2d')
+                 ]):
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(in_channels, int)
+        assert isinstance(stem_channels, int)
+        assert utils.is_type_list(arch_settings, int)
+        assert utils.is_type_list(strides, int)
+        assert len(arch_settings) == len(strides)
+        assert out_indices is None or isinstance(out_indices, (list, tuple))
+        assert isinstance(last_stage_pool, bool)
+
+        self.out_indices = out_indices
+        self.last_stage_pool = last_stage_pool
+        self.block = BasicBlock
+        self.inplanes = stem_channels
+
+        self._make_stem_layer(in_channels, stem_channels)
+
+        self.res_layers = []
+        planes = base_channels
+        for i, num_blocks in enumerate(arch_settings):
+            stride = strides[i]
+            res_layer = self._make_layer(
+                block=self.block,
+                inplanes=self.inplanes,
+                planes=planes,
+                blocks=num_blocks,
+                stride=stride)
+            self.inplanes = planes * self.block.expansion
+            planes *= 2
+            layer_name = f'layer{i + 1}'
+            self.add_module(layer_name, res_layer)
+            self.res_layers.append(layer_name)
+
+    def _make_layer(self, block, inplanes, planes, blocks, stride=1):
+        layers = []
+        downsample = None
+        if stride != 1 or inplanes != planes:
+            downsample = nn.Sequential(
+                nn.Conv2d(inplanes, planes, 1, stride, bias=False),
+                nn.BatchNorm2d(planes),
+            )
+        layers.append(
+            block(
+                inplanes,
+                planes,
+                use_conv1x1=True,
+                stride=stride,
+                downsample=downsample))
+        inplanes = planes
+        for _ in range(1, blocks):
+            layers.append(block(inplanes, planes, use_conv1x1=True))
+
+        return Sequential(*layers)
+
+    def _make_stem_layer(self, in_channels, stem_channels):
+        self.conv1 = nn.Conv2d(
+            in_channels, stem_channels, kernel_size=3, stride=1, padding=1)
+        self.bn1 = nn.BatchNorm2d(stem_channels)
+        self.relu1 = nn.ReLU(inplace=True)
+
+    def forward(self, x):
+        """
+        Args:
+            x (Tensor): Image tensor of shape :math:`(N, 3, H, W)`.
+
+        Returns:
+            Tensor or list[Tensor]: Feature tensor. Its shape depends on
+            ResNetABI's config. It can be a list of feature outputs at specific
+            layers if ``out_indices`` is specified.
+        """
+
+        x = self.conv1(x)
+        x = self.bn1(x)
+        x = self.relu1(x)
+
+        outs = []
+        for i, layer_name in enumerate(self.res_layers):
+            res_layer = getattr(self, layer_name)
+            x = res_layer(x)
+            if self.out_indices and i in self.out_indices:
+                outs.append(x)
+
+        return tuple(outs) if self.out_indices else x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/backbones/shallow_cnn.py b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/shallow_cnn.py
new file mode 100644
index 0000000000000000000000000000000000000000..542b37bbc893c3bb0a01840a01ea81e6e259136a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/backbones/shallow_cnn.py
@@ -0,0 +1,75 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Union
+
+import torch.nn as nn
+from mmcv.cnn import ConvModule
+from mmengine.model import BaseModule
+from torch import Tensor
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class ShallowCNN(BaseModule):
+    """Implement Shallow CNN block for SATRN.
+
+    SATRN: `On Recognizing Texts of Arbitrary Shapes with 2D Self-Attention
+    <https://arxiv.org/pdf/1910.04396.pdf>`_.
+
+    Args:
+        input_channels (int): Number of channels of input image tensor
+            :math:`D_i`. Defaults to 1.
+        hidden_dim (int): Size of hidden layers of the model :math:`D_m`.
+            Defaults to 512.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        input_channels: int = 1,
+        hidden_dim: int = 512,
+        init_cfg: Optional[Union[Dict, List[Dict]]] = [
+            dict(type='Kaiming', layer='Conv2d'),
+            dict(type='Uniform', layer='BatchNorm2d')
+        ]
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(input_channels, int)
+        assert isinstance(hidden_dim, int)
+
+        self.conv1 = ConvModule(
+            input_channels,
+            hidden_dim // 2,
+            kernel_size=3,
+            stride=1,
+            padding=1,
+            bias=False,
+            norm_cfg=dict(type='BN'),
+            act_cfg=dict(type='ReLU'))
+        self.conv2 = ConvModule(
+            hidden_dim // 2,
+            hidden_dim,
+            kernel_size=3,
+            stride=1,
+            padding=1,
+            bias=False,
+            norm_cfg=dict(type='BN'),
+            act_cfg=dict(type='ReLU'))
+        self.pool = nn.MaxPool2d(kernel_size=2, stride=2, padding=0)
+
+    def forward(self, x: Tensor) -> Tensor:
+        """
+        Args:
+            x (Tensor): Input image feature :math:`(N, D_i, H, W)`.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, D_m, H/4, W/4)`.
+        """
+
+        x = self.conv1(x)
+        x = self.pool(x)
+
+        x = self.conv2(x)
+        x = self.pool(x)
+
+        return x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/data_preprocessors/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/data_preprocessors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..43b65323c6baf512d358772df06b15dc1bf802da
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/data_preprocessors/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .data_preprocessor import TextRecogDataPreprocessor
+
+__all__ = ['TextRecogDataPreprocessor']
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/data_preprocessors/data_preprocessor.py b/mmocr-dev-1.x/mmocr/models/textrecog/data_preprocessors/data_preprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..99ae1719ca9fcc722c0c4f2f8d01e14bdbfed13d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/data_preprocessors/data_preprocessor.py
@@ -0,0 +1,97 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from numbers import Number
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch.nn as nn
+from mmengine.model import ImgDataPreprocessor
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class TextRecogDataPreprocessor(ImgDataPreprocessor):
+    """Image pre-processor for recognition tasks.
+
+    Comparing with the :class:`mmengine.ImgDataPreprocessor`,
+
+    1. It supports batch augmentations.
+    2. It will additionally append batch_input_shape and valid_ratio
+    to data_samples considering the object recognition task.
+
+    It provides the data pre-processing as follows
+
+    - Collate and move data to the target device.
+    - Pad inputs to the maximum size of current batch with defined
+      ``pad_value``. The padding size can be divisible by a defined
+      ``pad_size_divisor``
+    - Stack inputs to inputs.
+    - Convert inputs from bgr to rgb if the shape of input is (3, H, W).
+    - Normalize image with defined std and mean.
+    - Do batch augmentations during training.
+
+    Args:
+        mean (Sequence[Number], optional): The pixel mean of R, G, B channels.
+            Defaults to None.
+        std (Sequence[Number], optional): The pixel standard deviation of
+            R, G, B channels. Defaults to None.
+        pad_size_divisor (int): The size of padded image should be
+            divisible by ``pad_size_divisor``. Defaults to 1.
+        pad_value (Number): The padded pixel value. Defaults to 0.
+        bgr_to_rgb (bool): whether to convert image from BGR to RGB.
+            Defaults to False.
+        rgb_to_bgr (bool): whether to convert image from RGB to RGB.
+            Defaults to False.
+        batch_augments (list[dict], optional): Batch-level augmentations
+    """
+
+    def __init__(self,
+                 mean: Sequence[Number] = None,
+                 std: Sequence[Number] = None,
+                 pad_size_divisor: int = 1,
+                 pad_value: Union[float, int] = 0,
+                 bgr_to_rgb: bool = False,
+                 rgb_to_bgr: bool = False,
+                 batch_augments: Optional[List[Dict]] = None) -> None:
+        super().__init__(
+            mean=mean,
+            std=std,
+            pad_size_divisor=pad_size_divisor,
+            pad_value=pad_value,
+            bgr_to_rgb=bgr_to_rgb,
+            rgb_to_bgr=rgb_to_bgr)
+        if batch_augments is not None:
+            self.batch_augments = nn.ModuleList(
+                [MODELS.build(aug) for aug in batch_augments])
+        else:
+            self.batch_augments = None
+
+    def forward(self, data: Dict, training: bool = False) -> Dict:
+        """Perform normalization、padding and bgr2rgb conversion based on
+        ``BaseDataPreprocessor``.
+
+        Args:
+            data (dict): Data sampled from dataloader.
+            training (bool): Whether to enable training time augmentation.
+
+        Returns:
+            dict: Data in the same format as the model input.
+        """
+        data = super().forward(data=data, training=training)
+        inputs, data_samples = data['inputs'], data['data_samples']
+
+        if data_samples is not None:
+            batch_input_shape = tuple(inputs[0].size()[-2:])
+            for data_sample in data_samples:
+
+                valid_ratio = data_sample.valid_ratio * \
+                    data_sample.img_shape[1] / batch_input_shape[1]
+                data_sample.set_metainfo(
+                    dict(
+                        valid_ratio=valid_ratio,
+                        batch_input_shape=batch_input_shape))
+
+        if training and self.batch_augments is not None:
+            for batch_aug in self.batch_augments:
+                inputs, data_samples = batch_aug(inputs, data_samples)
+
+        return data
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/__init__.py
new file mode 100755
index 0000000000000000000000000000000000000000..ec4981fe891baebb6c623de124a7308192272abb
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/__init__.py
@@ -0,0 +1,24 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .abi_fuser import ABIFuser
+from .abi_language_decoder import ABILanguageDecoder
+from .abi_vision_decoder import ABIVisionDecoder
+from .aster_decoder import ASTERDecoder
+from .base import BaseDecoder
+from .crnn_decoder import CRNNDecoder
+from .master_decoder import MasterDecoder
+from .nrtr_decoder import NRTRDecoder
+from .position_attention_decoder import PositionAttentionDecoder
+from .robust_scanner_fuser import RobustScannerFuser
+from .sar_decoder import ParallelSARDecoder, SequentialSARDecoder
+from .sar_decoder_with_bs import ParallelSARDecoderWithBS
+from .sequence_attention_decoder import SequenceAttentionDecoder
+from .svtr_decoder import SVTRDecoder
+from .maerec_decoder import MAERecDecoder
+__all__ = [
+    'CRNNDecoder', 'ParallelSARDecoder', 'SequentialSARDecoder',
+    'ParallelSARDecoderWithBS', 'NRTRDecoder', 'BaseDecoder',
+    'SequenceAttentionDecoder', 'PositionAttentionDecoder',
+    'ABILanguageDecoder', 'ABIVisionDecoder', 'MasterDecoder',
+    'RobustScannerFuser', 'ABIFuser', 'SVTRDecoder', 'ASTERDecoder',
+    'MAERecDecoder'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_fuser.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_fuser.py
new file mode 100644
index 0000000000000000000000000000000000000000..43ecba41e87e72803525b38cf2c019bc1d2d7bba
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_fuser.py
@@ -0,0 +1,174 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class ABIFuser(BaseDecoder):
+    r"""A special decoder responsible for mixing and aligning visual feature
+    and linguistic feature. `ABINet <https://arxiv.org/abs/2103.06495>`_
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`. The dictionary must have an end
+            token.
+        vision_decoder (dict): The config for vision decoder.
+        language_decoder (dict, optional): The config for language decoder.
+        num_iters (int): Rounds of iterative correction. Defaults to 1.
+        d_model (int): Hidden size :math:`E` of model. Defaults to 512.
+        max_seq_len (int): Maximum sequence length :math:`T`. The
+            sequence is usually generated from decoder. Defaults to 40.
+        module_loss (dict, optional): Config to build loss. Defaults to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 vision_decoder: Dict,
+                 language_decoder: Optional[Dict] = None,
+                 d_model: int = 512,
+                 num_iters: int = 1,
+                 max_seq_len: int = 40,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None,
+                 **kwargs) -> None:
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        assert self.dictionary.end_idx is not None,\
+            'Dictionary must contain an end token! (with_end=True)'
+
+        self.d_model = d_model
+        self.num_iters = num_iters
+        if language_decoder is not None:
+            self.w_att = nn.Linear(2 * d_model, d_model)
+            self.cls = nn.Linear(d_model, self.dictionary.num_classes)
+
+        self.vision_decoder = vision_decoder
+        self.language_decoder = language_decoder
+        for cfg_name in ['vision_decoder', 'language_decoder']:
+            if getattr(self, cfg_name, None) is not None:
+                cfg = getattr(self, cfg_name)
+                if cfg.get('dictionary', None) is None:
+                    cfg.update(dictionary=self.dictionary)
+                else:
+                    warnings.warn(f"Using dictionary {cfg['dictionary']} "
+                                  "in decoder's config.")
+                if cfg.get('max_seq_len', None) is None:
+                    cfg.update(max_seq_len=max_seq_len)
+                else:
+                    warnings.warn(f"Using max_seq_len {cfg['max_seq_len']} "
+                                  "in decoder's config.")
+                setattr(self, cfg_name, MODELS.build(cfg))
+        self.softmax = nn.Softmax(dim=-1)
+
+    def forward_train(
+            self,
+            feat: Optional[torch.Tensor] = None,
+            out_enc: torch.Tensor = None,
+            data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> Dict:
+        """
+        Args:
+            feat (torch.Tensor, optional): Not required. Feature map
+                placeholder. Defaults to None.
+            out_enc (Tensor): Raw language logitis. Shape :math:`(N, T, C)`.
+                Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Not required.
+                DataSample placeholder. Defaults to None.
+
+        Returns:
+            A dict with keys ``out_enc``, ``out_decs`` and ``out_fusers``.
+
+            - out_vis (dict):  Dict from ``self.vision_decoder`` with keys
+              ``feature``, ``logits`` and ``attn_scores``.
+            - out_langs (dict or list): Dict from ``self.vision_decoder`` with
+              keys ``feature``, ``logits`` if applicable, or an empty list
+              otherwise.
+            - out_fusers (dict or list): Dict of fused visual and language
+              features with keys ``feature``, ``logits`` if applicable, or
+              an empty list otherwise.
+        """
+        out_vis = self.vision_decoder(feat, out_enc, data_samples)
+        out_langs = []
+        out_fusers = []
+        if self.language_decoder is not None:
+            text_logits = out_vis['logits']
+            for _ in range(self.num_iters):
+                out_dec = self.language_decoder(feat, text_logits,
+                                                data_samples)
+                out_langs.append(out_dec)
+                out_fuser = self.fuse(out_vis['feature'], out_dec['feature'])
+                text_logits = out_fuser['logits']
+                out_fusers.append(out_fuser)
+
+        outputs = dict(
+            out_vis=out_vis, out_langs=out_langs, out_fusers=out_fusers)
+
+        return outputs
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor],
+        logits: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (torch.Tensor, optional): Not required. Feature map
+                placeholder. Defaults to None.
+            logits (Tensor): Raw language logitis. Shape :math:`(N, T, C)`.
+            data_samples (list[TextRecogDataSample], optional): Not required.
+                DataSample placeholder. Defaults to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        raw_result = self.forward_train(feat, logits, data_samples)
+
+        if 'out_fusers' in raw_result and len(raw_result['out_fusers']) > 0:
+            ret = raw_result['out_fusers'][-1]['logits']
+        elif 'out_langs' in raw_result and len(raw_result['out_langs']) > 0:
+            ret = raw_result['out_langs'][-1]['logits']
+        else:
+            ret = raw_result['out_vis']['logits']
+
+        return self.softmax(ret)
+
+    def fuse(self, l_feature: torch.Tensor, v_feature: torch.Tensor) -> Dict:
+        """Mix and align visual feature and linguistic feature.
+
+        Args:
+            l_feature (torch.Tensor): (N, T, E) where T is length, N is batch
+                size and E is dim of model.
+            v_feature (torch.Tensor): (N, T, E) shape the same as l_feature.
+
+        Returns:
+            dict: A dict with key ``logits``. of shape :math:`(N, T, C)` where
+            N is batch size, T is length and C is the number of characters.
+        """
+        f = torch.cat((l_feature, v_feature), dim=2)
+        f_att = torch.sigmoid(self.w_att(f))
+        output = f_att * v_feature + (1 - f_att) * l_feature
+
+        logits = self.cls(output)  # (N, T, C)
+
+        return {'logits': logits}
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_language_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_language_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..03492200fd1abb9ad9386f9578bae435a04bc6d0
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_language_decoder.py
@@ -0,0 +1,230 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from mmcv.cnn.bricks.transformer import BaseTransformerLayer
+from mmengine.model import ModuleList
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.common.modules import PositionalEncoding
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class ABILanguageDecoder(BaseDecoder):
+    r"""Transformer-based language model responsible for spell correction.
+    Implementation of language model of \
+        `ABINet <https://arxiv.org/pdf/2103.06495>`_.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`. The dictionary must have an end
+            token.
+        d_model (int): Hidden size :math:`E` of model. Defaults to 512.
+        n_head (int): Number of multi-attention heads.
+        d_inner (int): Hidden size of feedforward network model.
+        n_layers (int): The number of similar decoding layers.
+        dropout (float): Dropout rate.
+        detach_tokens (bool): Whether to block the gradient flow at input
+         tokens.
+        use_self_attn (bool): If True, use self attention in decoder layers,
+            otherwise cross attention will be used.
+        max_seq_len (int): Maximum sequence length :math:`T`. The
+            sequence is usually generated from decoder. Defaults to 40.
+        module_loss (dict, optional): Config to build loss. Defaults to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 d_model: int = 512,
+                 n_head: int = 8,
+                 d_inner: int = 2048,
+                 n_layers: int = 4,
+                 dropout: float = 0.1,
+                 detach_tokens: bool = True,
+                 use_self_attn: bool = False,
+                 max_seq_len: int = 40,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None,
+                 **kwargs) -> None:
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        assert self.dictionary.end_idx is not None,\
+            'Dictionary must contain an end token! (with_end=True)'
+
+        self.detach_tokens = detach_tokens
+        self.d_model = d_model
+
+        self.proj = nn.Linear(self.dictionary.num_classes, d_model, False)
+        self.token_encoder = PositionalEncoding(
+            d_model, n_position=self.max_seq_len, dropout=0.1)
+        self.pos_encoder = PositionalEncoding(
+            d_model, n_position=self.max_seq_len)
+
+        if use_self_attn:
+            operation_order = ('self_attn', 'norm', 'cross_attn', 'norm',
+                               'ffn', 'norm')
+        else:
+            operation_order = ('cross_attn', 'norm', 'ffn', 'norm')
+
+        decoder_layer = BaseTransformerLayer(
+            operation_order=operation_order,
+            attn_cfgs=dict(
+                type='MultiheadAttention',
+                embed_dims=d_model,
+                num_heads=n_head,
+                attn_drop=dropout,
+                dropout_layer=dict(type='Dropout', drop_prob=dropout),
+            ),
+            ffn_cfgs=dict(
+                type='FFN',
+                embed_dims=d_model,
+                feedforward_channels=d_inner,
+                ffn_drop=dropout,
+            ),
+            norm_cfg=dict(type='LN'),
+        )
+        self.decoder_layers = ModuleList(
+            [copy.deepcopy(decoder_layer) for _ in range(n_layers)])
+
+        self.cls = nn.Linear(d_model, self.dictionary.num_classes)
+
+    def forward_train(
+            self,
+            feat: Optional[torch.Tensor] = None,
+            out_enc: torch.Tensor = None,
+            data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> Dict:
+        """
+        Args:
+            feat (torch.Tensor, optional): Not required. Feature map
+                placeholder. Defaults to None.
+            out_enc (torch.Tensor): Logits with shape :math:`(N, T, C)`.
+                Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Not required.
+                DataSample placeholder. Defaults to None.
+
+        Returns:
+            A dict with keys ``feature`` and ``logits``.
+
+            - feature (Tensor): Shape :math:`(N, T, E)`. Raw textual features
+              for vision language aligner.
+            - logits (Tensor): Shape :math:`(N, T, C)`. The raw logits for
+              characters after spell correction.
+        """
+        lengths = self._get_length(out_enc)
+        lengths.clamp_(2, self.max_seq_len)
+        tokens = torch.softmax(out_enc, dim=-1)
+        if self.detach_tokens:
+            tokens = tokens.detach()
+        embed = self.proj(tokens)  # (N, T, E)
+        embed = self.token_encoder(embed)  # (N, T, E)
+        padding_mask = self._get_padding_mask(lengths, self.max_seq_len)
+
+        zeros = embed.new_zeros(*embed.shape)
+        query = self.pos_encoder(zeros)
+        query = query.permute(1, 0, 2)  # (T, N, E)
+        embed = embed.permute(1, 0, 2)
+        location_mask = self._get_location_mask(self.max_seq_len,
+                                                tokens.device)
+        output = query
+        for m in self.decoder_layers:
+            output = m(
+                query=output,
+                key=embed,
+                value=embed,
+                attn_masks=location_mask,
+                key_padding_mask=padding_mask)
+        output = output.permute(1, 0, 2)  # (N, T, E)
+
+        out_enc = self.cls(output)  # (N, T, C)
+        return {'feature': output, 'logits': out_enc}
+
+    def forward_test(
+            self,
+            feat: Optional[torch.Tensor] = None,
+            logits: torch.Tensor = None,
+            data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> Dict:
+        """
+        Args:
+            feat (torch.Tensor, optional): Not required. Feature map
+                placeholder. Defaults to None.
+            logits (Tensor): Raw language logitis. Shape :math:`(N, T, C)`.
+                Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Not required.
+                DataSample placeholder. Defaults to None.
+
+        Returns:
+            A dict with keys ``feature`` and ``logits``.
+
+            - feature (Tensor): Shape :math:`(N, T, E)`. Raw textual features
+              for vision language aligner.
+            - logits (Tensor): Shape :math:`(N, T, C)`. The raw logits for
+              characters after spell correction.
+        """
+        return self.forward_train(feat, logits, data_samples)
+
+    def _get_length(self, logit: torch.Tensor, dim: int = -1) -> torch.Tensor:
+        """Greedy decoder to obtain length from logit.
+
+        Returns the first location of padding index or the length of the entire
+        tensor otherwise.
+        """
+        # out as a boolean vector indicating the existence of end token(s)
+        out = (logit.argmax(dim=-1) == self.dictionary.end_idx)
+        abn = out.any(dim)
+        # Get the first index of end token
+        out = ((out.cumsum(dim) == 1) & out).max(dim)[1]
+        out = out + 1
+        out = torch.where(abn, out, out.new_tensor(logit.shape[1]))
+        return out
+
+    @staticmethod
+    def _get_location_mask(seq_len: int,
+                           device: Union[Optional[torch.device],
+                                         str] = None) -> torch.Tensor:
+        """Generate location masks given input sequence length.
+
+        Args:
+            seq_len (int): The length of input sequence to transformer.
+            device (torch.device or str, optional): The device on which the
+                masks will be placed.
+
+        Returns:
+            Tensor: A mask tensor of shape (seq_len, seq_len) with -infs on
+            diagonal and zeros elsewhere.
+        """
+        mask = torch.eye(seq_len, device=device)
+        mask = mask.float().masked_fill(mask == 1, float('-inf'))
+        return mask
+
+    @staticmethod
+    def _get_padding_mask(length: int, max_length: int) -> torch.Tensor:
+        """Generate padding masks.
+
+        Args:
+            length (Tensor): Shape :math:`(N,)`.
+            max_length (int): The maximum sequence length :math:`T`.
+
+        Returns:
+            Tensor: A bool tensor of shape :math:`(N, T)` with Trues on
+            elements located over the length, or Falses elsewhere.
+        """
+        length = length.unsqueeze(-1)
+        grid = torch.arange(0, max_length, device=length.device).unsqueeze(0)
+        return grid >= length
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_vision_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_vision_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..7095e82209f24f9d30f68c979b504401ea514c05
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/abi_vision_decoder.py
@@ -0,0 +1,238 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence, Tuple, Union
+
+import torch
+import torch.nn as nn
+from mmcv.cnn import ConvModule
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.common.modules import PositionalEncoding
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class ABIVisionDecoder(BaseDecoder):
+    """Converts visual features into text characters.
+
+    Implementation of VisionEncoder in
+        `ABINet <https://arxiv.org/abs/2103.06495>`_.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        in_channels (int): Number of channels :math:`E` of input vector.
+            Defaults to 512.
+        num_channels (int): Number of channels of hidden vectors in mini U-Net.
+            Defaults to 64.
+        attn_height (int): Height :math:`H` of input image features. Defaults
+            to 8.
+        attn_width (int): Width :math:`W` of input image features. Defaults to
+            32.
+        attn_mode (str): Upsampling mode for :obj:`torch.nn.Upsample` in mini
+            U-Net. Defaults to 'nearest'.
+        module_loss (dict, optional): Config to build loss. Defaults to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        max_seq_len (int): Maximum sequence length. The
+            sequence is usually generated from decoder. Defaults to 40.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to dict(type='Xavier', layer='Conv2d').
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 in_channels: int = 512,
+                 num_channels: int = 64,
+                 attn_height: int = 8,
+                 attn_width: int = 32,
+                 attn_mode: str = 'nearest',
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 max_seq_len: int = 40,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = dict(
+                     type='Xavier', layer='Conv2d'),
+                 **kwargs) -> None:
+
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        # For mini-Unet
+        self.k_encoder = nn.Sequential(
+            self._encoder_layer(in_channels, num_channels, stride=(1, 2)),
+            self._encoder_layer(num_channels, num_channels, stride=(2, 2)),
+            self._encoder_layer(num_channels, num_channels, stride=(2, 2)),
+            self._encoder_layer(num_channels, num_channels, stride=(2, 2)))
+
+        self.k_decoder = nn.Sequential(
+            self._decoder_layer(
+                num_channels, num_channels, scale_factor=2, mode=attn_mode),
+            self._decoder_layer(
+                num_channels, num_channels, scale_factor=2, mode=attn_mode),
+            self._decoder_layer(
+                num_channels, num_channels, scale_factor=2, mode=attn_mode),
+            self._decoder_layer(
+                num_channels,
+                in_channels,
+                size=(attn_height, attn_width),
+                mode=attn_mode))
+
+        self.pos_encoder = PositionalEncoding(in_channels, max_seq_len)
+        self.project = nn.Linear(in_channels, in_channels)
+        self.cls = nn.Linear(in_channels, self.dictionary.num_classes)
+
+    def forward_train(
+            self,
+            feat: Optional[torch.Tensor] = None,
+            out_enc: torch.Tensor = None,
+            data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> Dict:
+        """
+        Args:
+            feat (Tensor, optional): Image features of shape (N, E, H, W).
+                Defaults to None.
+            out_enc (torch.Tensor): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            dict: A dict with keys ``feature``, ``logits`` and ``attn_scores``.
+
+            - feature (Tensor): Shape (N, T, E). Raw visual features for
+              language decoder.
+            - logits (Tensor): Shape (N, T, C). The raw logits for
+              characters.
+            - attn_scores (Tensor): Shape (N, T, H, W). Intermediate result
+              for vision-language aligner.
+        """
+        # Position Attention
+        N, E, H, W = out_enc.size()
+        k, v = out_enc, out_enc  # (N, E, H, W)
+
+        # Apply mini U-Net on k
+        features = []
+        for i in range(len(self.k_encoder)):
+            k = self.k_encoder[i](k)
+            features.append(k)
+        for i in range(len(self.k_decoder) - 1):
+            k = self.k_decoder[i](k)
+            k = k + features[len(self.k_decoder) - 2 - i]
+        k = self.k_decoder[-1](k)
+
+        # q = positional encoding
+        zeros = out_enc.new_zeros((N, self.max_seq_len, E))  # (N, T, E)
+        q = self.pos_encoder(zeros)  # (N, T, E)
+        q = self.project(q)  # (N, T, E)
+
+        # Attention encoding
+        attn_scores = torch.bmm(q, k.flatten(2, 3))  # (N, T, (H*W))
+        attn_scores = attn_scores / (E**0.5)
+        attn_scores = torch.softmax(attn_scores, dim=-1)
+        v = v.permute(0, 2, 3, 1).view(N, -1, E)  # (N, (H*W), E)
+        attn_vecs = torch.bmm(attn_scores, v)  # (N, T, E)
+
+        out_enc = self.cls(attn_vecs)
+        result = {
+            'feature': attn_vecs,
+            'logits': out_enc,
+            'attn_scores': attn_scores.view(N, -1, H, W)
+        }
+        return result
+
+    def forward_test(
+            self,
+            feat: Optional[torch.Tensor] = None,
+            out_enc: torch.Tensor = None,
+            data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> Dict:
+        """
+        Args:
+            feat (torch.Tensor, optional): Image features of shape
+                (N, E, H, W). Defaults to None.
+            out_enc (torch.Tensor): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            dict: A dict with keys ``feature``, ``logits`` and ``attn_scores``.
+
+            - feature (Tensor): Shape (N, T, E). Raw visual features for
+              language decoder.
+            - logits (Tensor): Shape (N, T, C). The raw logits for
+              characters.
+            - attn_scores (Tensor): Shape (N, T, H, W). Intermediate result
+              for vision-language aligner.
+        """
+        return self.forward_train(
+            feat, out_enc=out_enc, data_samples=data_samples)
+
+    def _encoder_layer(self,
+                       in_channels: int,
+                       out_channels: int,
+                       kernel_size: int = 3,
+                       stride: int = 2,
+                       padding: int = 1) -> nn.Sequential:
+        """Generate encoder layer.
+
+        Args:
+            in_channels (int): Input channels.
+            out_channels (int): Output channels.
+            kernel_size (int, optional): Kernel size. Defaults to 3.
+            stride (int, optional): Stride. Defaults to 2.
+            padding (int, optional): Padding. Defaults to 1.
+
+        Returns:
+            nn.Sequential: Encoder layer.
+        """
+        return ConvModule(
+            in_channels,
+            out_channels,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=padding,
+            norm_cfg=dict(type='BN'),
+            act_cfg=dict(type='ReLU'))
+
+    def _decoder_layer(self,
+                       in_channels: int,
+                       out_channels: int,
+                       kernel_size: int = 3,
+                       stride: int = 1,
+                       padding: int = 1,
+                       mode: str = 'nearest',
+                       scale_factor: Optional[int] = None,
+                       size: Optional[Tuple[int, int]] = None):
+        """Generate decoder layer.
+
+        Args:
+            in_channels (int): Input channels.
+            out_channels (int): Output channels.
+            kernel_size (int): Kernel size. Defaults to 3.
+            stride (int): Stride. Defaults to 1.
+            padding (int): Padding. Defaults to 1.
+            mode (str): Interpolation mode. Defaults to 'nearest'.
+            scale_factor (int, optional): Scale factor for upsampling.
+            size (Tuple[int, int], optional): Output size. Defaults to None.
+        """
+        align_corners = None if mode == 'nearest' else True
+        return nn.Sequential(
+            nn.Upsample(
+                size=size,
+                scale_factor=scale_factor,
+                mode=mode,
+                align_corners=align_corners),
+            ConvModule(
+                in_channels,
+                out_channels,
+                kernel_size=kernel_size,
+                stride=stride,
+                padding=padding,
+                norm_cfg=dict(type='BN'),
+                act_cfg=dict(type='ReLU')))
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/aster_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/aster_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..83e249b08c00acc06a7a31a5b5e44ba70ff3b712
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/aster_decoder.py
@@ -0,0 +1,181 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Sequence, Tuple, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class ASTERDecoder(BaseDecoder):
+    """Implement attention decoder.
+
+    Args:
+        in_channels (int): Number of input channels.
+        emb_dims (int): Dims of char embedding. Defaults to 512.
+        attn_dims (int): Dims of attention. Both hidden states and features
+            will be projected to this dims. Defaults to 512.
+        hidden_size (int): Dims of hidden state for GRU. Defaults to 512.
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`. Defaults to None.
+        max_seq_len (int): Maximum output sequence length :math:`T`. Defaults
+            to 25.
+        module_loss (dict, optional): Config to build loss. Defaults to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 emb_dims: int = 512,
+                 attn_dims: int = 512,
+                 hidden_size: int = 512,
+                 dictionary: Union[Dictionary, Dict] = None,
+                 max_seq_len: int = 25,
+                 module_loss: Dict = None,
+                 postprocessor: Dict = None,
+                 init_cfg=dict(type='Xavier', layer='Conv2d')):
+        super().__init__(
+            init_cfg=init_cfg,
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len)
+
+        self.start_idx = self.dictionary.start_idx
+        self.num_classes = self.dictionary.num_classes
+        self.in_channels = in_channels
+        self.embedding_dim = emb_dims
+        self.att_dims = attn_dims
+        self.hidden_size = hidden_size
+
+        # Projection layers
+        self.proj_feat = nn.Linear(in_channels, attn_dims)
+        self.proj_hidden = nn.Linear(hidden_size, attn_dims)
+        self.proj_sum = nn.Linear(attn_dims, 1)
+
+        # Decoder input embedding
+        self.embedding = nn.Embedding(self.num_classes, self.att_dims)
+
+        # GRU
+        self.gru = nn.GRU(
+            input_size=self.in_channels + self.embedding_dim,
+            hidden_size=self.hidden_size,
+            batch_first=True)
+
+        # Prediction layer
+        self.fc = nn.Linear(hidden_size, self.dictionary.num_classes)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def _attention(self, feat: torch.Tensor, prev_hidden: torch.Tensor,
+                   prev_char: torch.Tensor
+                   ) -> Tuple[torch.Tensor, torch.Tensor]:
+        """Implement the attention mechanism.
+
+        Args:
+            feat (Tensor): Feature map from encoder of shape :math:`(N, T, C)`.
+            prev_hidden (Tensor): Previous hidden state from GRU of shape
+                :math:`(1, N, self.hidden_size)`.
+            prev_char (Tensor): Previous predicted character of shape
+                :math:`(N, )`.
+
+        Returns:
+            tuple(Tensor, Tensor):
+            - output (Tensor): Predicted character of current time step of
+              shape :math:`(N, 1)`.
+            - state (Tensor): Hidden state from GRU of current time step of
+              shape :math:`(N, self.hidden_size)`.
+        """
+        # Calculate the attention weights
+        B, T, _ = feat.size()
+        feat_proj = self.proj_feat(feat)  # [N, T, attn_dims]
+        hidden_proj = self.proj_hidden(prev_hidden)  # [1, N, attn_dims]
+        hidden_proj = hidden_proj.squeeze(0).unsqueeze(1)  # [N, 1, attn_dims]
+        hidden_proj = hidden_proj.expand(B, T,
+                                         self.att_dims)  # [N, T, attn_dims]
+
+        sum_tanh = torch.tanh(feat_proj + hidden_proj)  # [N, T, attn_dims]
+        sum_proj = self.proj_sum(sum_tanh).squeeze(-1)  # [N, T]
+        attn_weights = torch.softmax(sum_proj, dim=1)  # [N, T]
+
+        # GRU forward
+        context = torch.bmm(attn_weights.unsqueeze(1), feat).squeeze(1)
+        char_embed = self.embedding(prev_char.long())  # [N, emb_dims]
+        output, state = self.gru(
+            torch.cat([char_embed, context], 1).unsqueeze(1), prev_hidden)
+        output = output.squeeze(1)
+        output = self.fc(output)
+        return output, state
+
+    def forward_train(
+        self,
+        feat: torch.Tensor = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Feature from backbone. Unused in this decoder.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, T, C)` where
+            :math:`C` is ``num_classes``.
+        """
+        B = out_enc.shape[0]
+        state = torch.zeros(1, B, self.hidden_size).to(out_enc.device)
+        padded_targets = [
+            data_sample.gt_text.padded_indexes for data_sample in data_samples
+        ]
+        padded_targets = torch.stack(padded_targets, dim=0).to(out_enc.device)
+        outputs = []
+        for i in range(self.max_seq_len):
+            prev_char = padded_targets[:, i].to(out_enc.device)
+            output, state = self._attention(out_enc, state, prev_char)
+            outputs.append(output)
+        outputs = torch.cat([_.unsqueeze(1) for _ in outputs], 1)
+        return outputs
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Feature from backbone. Unused in this decoder.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None. Unused in this decoder.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, T, C)` where
+            :math:`C` is ``num_classes``.
+        """
+        B = out_enc.shape[0]
+        predicted = []
+        state = torch.zeros(1, B, self.hidden_size).to(out_enc.device)
+        outputs = []
+        for i in range(self.max_seq_len):
+            if i == 0:
+                prev_char = torch.zeros(B).fill_(self.start_idx).to(
+                    out_enc.device)
+            else:
+                prev_char = predicted
+
+            output, state = self._attention(out_enc, state, prev_char)
+            outputs.append(output)
+            _, predicted = output.max(-1)
+        outputs = torch.cat([_.unsqueeze(1) for _ in outputs], 1)
+        return self.softmax(outputs)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/base.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..2c990ca0c1c9c1b6a2878ca05cb764b20e3d8fb1
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/base.py
@@ -0,0 +1,166 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+from mmengine.model import BaseModule
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS, TASK_UTILS
+from mmocr.structures import TextRecogDataSample
+
+
+@MODELS.register_module()
+class BaseDecoder(BaseModule):
+    """Base decoder for text recognition, build the loss and postprocessor.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        loss (dict, optional): Config to build loss. Defaults to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        max_seq_len (int): Maximum sequence length. The
+            sequence is usually generated from decoder. Defaults to 40.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 max_seq_len: int = 40,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        if isinstance(dictionary, dict):
+            self.dictionary = TASK_UTILS.build(dictionary)
+        elif isinstance(dictionary, Dictionary):
+            self.dictionary = dictionary
+        else:
+            raise TypeError(
+                'The type of dictionary should be `Dictionary` or dict, '
+                f'but got {type(dictionary)}')
+        self.module_loss = None
+        self.postprocessor = None
+        self.max_seq_len = max_seq_len
+
+        if module_loss is not None:
+            assert isinstance(module_loss, dict)
+            module_loss.update(dictionary=dictionary)
+            module_loss.update(max_seq_len=max_seq_len)
+            self.module_loss = MODELS.build(module_loss)
+
+        if postprocessor is not None:
+            assert isinstance(postprocessor, dict)
+            postprocessor.update(dictionary=dictionary)
+            postprocessor.update(max_seq_len=max_seq_len)
+            self.postprocessor = MODELS.build(postprocessor)
+
+    def forward_train(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for training.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map from backbone of
+                shape :math:`(N, E, H, W)`. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+        """
+        raise NotImplementedError
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for testing.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map from backbone of
+                shape :math:`(N, E, H, W)`. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+        """
+        raise NotImplementedError
+
+    def loss(self,
+             feat: Optional[torch.Tensor] = None,
+             out_enc: Optional[torch.Tensor] = None,
+             data_samples: Optional[Sequence[TextRecogDataSample]] = None
+             ) -> Dict:
+        """Calculate losses from a batch of inputs and data samples.
+
+        Args:
+            feat (Tensor, optional): Features from the backbone. Defaults
+                to None.
+            out_enc (Tensor, optional): Features from the encoder.
+                Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): A list of
+                N datasamples, containing meta information and gold
+                annotations for each of the images. Defaults to None.
+
+        Returns:
+            dict[str, tensor]: A dictionary of loss components.
+        """
+        out_dec = self(feat, out_enc, data_samples)
+        return self.module_loss(out_dec, data_samples)
+
+    def predict(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> Sequence[TextRecogDataSample]:
+        """Perform forward propagation of the decoder and postprocessor.
+
+        Args:
+            feat (Tensor, optional): Features from the backbone. Defaults
+                to None.
+            out_enc (Tensor, optional): Features from the encoder. Defaults
+                to None.
+            data_samples (list[TextRecogDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images. Defaults to None.
+
+        Returns:
+            list[TextRecogDataSample]:  A list of N datasamples of prediction
+            results. Results are stored in ``pred_text``.
+        """
+        out_dec = self(feat, out_enc, data_samples)
+        return self.postprocessor(out_dec, data_samples)
+
+    def forward(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """Decoder forward.
+
+         Args:
+            feat (Tensor, optional): Features from the backbone. Defaults
+                to None.
+            out_enc (Tensor, optional): Features from the encoder.
+                Defaults to None.
+            data_samples (list[TextRecogDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images. Defaults to None.
+
+        Returns:
+            Tensor: Features from ``decoder`` forward.
+        """
+        if self.training:
+            if getattr(self, 'module_loss') is not None:
+                data_samples = self.module_loss.get_targets(data_samples)
+            return self.forward_train(feat, out_enc, data_samples)
+        else:
+            return self.forward_test(feat, out_enc, data_samples)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/crnn_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/crnn_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..7d29abbd86a9c5bd2cafe633efd1514eb1c97b96
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/crnn_decoder.py
@@ -0,0 +1,109 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from mmengine.model import Sequential
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.layers import BidirectionalLSTM
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class CRNNDecoder(BaseDecoder):
+    """Decoder for CRNN.
+
+    Args:
+        in_channels (int): Number of input channels.
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        rnn_flag (bool): Use RNN or CNN as the decoder. Defaults to False.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 dictionary: Union[Dictionary, Dict],
+                 rnn_flag: bool = False,
+                 module_loss: Dict = None,
+                 postprocessor: Dict = None,
+                 init_cfg=dict(type='Xavier', layer='Conv2d'),
+                 **kwargs):
+        super().__init__(
+            init_cfg=init_cfg,
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor)
+        self.rnn_flag = rnn_flag
+
+        if rnn_flag:
+            self.decoder = Sequential(
+                BidirectionalLSTM(in_channels, 256, 256),
+                BidirectionalLSTM(256, 256, self.dictionary.num_classes))
+        else:
+            self.decoder = nn.Conv2d(
+                in_channels,
+                self.dictionary.num_classes,
+                kernel_size=1,
+                stride=1)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def forward_train(
+        self,
+        feat: torch.Tensor,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): A Tensor of shape :math:`(N, C, 1, W)`.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, W, C)` where
+            :math:`C` is ``num_classes``.
+        """
+        assert feat.size(2) == 1, 'feature height must be 1'
+        if self.rnn_flag:
+            x = feat.squeeze(2)  # [N, C, W]
+            x = x.permute(2, 0, 1)  # [W, N, C]
+            x = self.decoder(x)  # [W, N, C]
+            outputs = x.permute(1, 0, 2).contiguous()
+        else:
+            x = self.decoder(feat)
+            x = x.permute(0, 3, 1, 2).contiguous()
+            n, w, c, h = x.size()
+            outputs = x.view(n, w, c * h)
+        return outputs
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): A Tensor of shape :math:`(N, C, 1, W)`.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing ``gt_text`` information.
+                Defaults to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        return self.softmax(self.forward_train(feat, out_enc, data_samples))
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/maerec_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/maerec_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..e569b06f371769e32cb729e72ea65be64e4ecc5f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/maerec_decoder.py
@@ -0,0 +1,258 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from mmengine.model import ModuleList
+
+from mmocr.models.common import PositionalEncoding, TFDecoderLayer
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class MAERecDecoder(BaseDecoder):
+    """Transformer Decoder block with self attention mechanism.
+
+    Args:
+        n_layers (int): Number of attention layers. Defaults to 6.
+        d_embedding (int): Language embedding dimension. Defaults to 512.
+        n_head (int): Number of parallel attention heads. Defaults to 8.
+        d_k (int): Dimension of the key vector. Defaults to 64.
+        d_v (int): Dimension of the value vector. Defaults to 64
+        d_model (int): Dimension :math:`D_m` of the input from previous model.
+            Defaults to 512.
+        d_inner (int): Hidden dimension of feedforward layers. Defaults to 256.
+        n_position (int): Length of the positional encoding vector. Must be
+            greater than ``max_seq_len``. Defaults to 200.
+        dropout (float): Dropout rate for text embedding, MHSA, FFN. Defaults
+            to 0.1.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        max_seq_len (int): Maximum output sequence length :math:`T`. Defaults
+            to 30.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(self,
+                 n_layers: int = 6,
+                 d_embedding: int = 512,
+                 n_head: int = 8,
+                 d_k: int = 64,
+                 d_v: int = 64,
+                 d_model: int = 512,
+                 d_inner: int = 256,
+                 n_position: int = 200,
+                 dropout: float = 0.1,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 dictionary: Optional[Union[Dict, Dictionary]] = None,
+                 max_seq_len: int = 30,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            dictionary=dictionary,
+            init_cfg=init_cfg,
+            max_seq_len=max_seq_len)
+
+        self.padding_idx = self.dictionary.padding_idx
+        self.start_idx = self.dictionary.start_idx
+        self.max_seq_len = max_seq_len
+
+        self.trg_word_emb = nn.Embedding(
+            self.dictionary.num_classes,
+            d_embedding,
+            padding_idx=self.padding_idx)
+
+        self.position_enc = PositionalEncoding(
+            d_embedding, n_position=n_position)
+        self.dropout = nn.Dropout(p=dropout)
+
+        self.layer_stack = ModuleList([
+            TFDecoderLayer(
+                d_model, d_inner, n_head, d_k, d_v, dropout=dropout)
+            for _ in range(n_layers)
+        ])
+        self.layer_norm = nn.LayerNorm(d_model, eps=1e-6)
+
+        pred_num_class = self.dictionary.num_classes
+        self.classifier = nn.Linear(d_model, pred_num_class)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def _get_target_mask(self, trg_seq: torch.Tensor) -> torch.Tensor:
+        """Generate mask for target sequence.
+
+        Args:
+            trg_seq (torch.Tensor): Input text sequence. Shape :math:`(N, T)`.
+
+        Returns:
+            Tensor: Target mask. Shape :math:`(N, T, T)`.
+            E.g.:
+            seq = torch.Tensor([[1, 2, 0, 0]]), pad_idx = 0, then
+            target_mask =
+            torch.Tensor([[[True, False, False, False],
+            [True, True, False, False],
+            [True, True, False, False],
+            [True, True, False, False]]])
+        """
+
+        pad_mask = (trg_seq != self.padding_idx).unsqueeze(-2)
+
+        len_s = trg_seq.size(1)
+        subsequent_mask = 1 - torch.triu(
+            torch.ones((len_s, len_s), device=trg_seq.device), diagonal=1)
+        subsequent_mask = subsequent_mask.unsqueeze(0).bool()
+
+        return pad_mask & subsequent_mask
+
+    def _get_source_mask(self, src_seq: torch.Tensor,
+                         valid_ratios: Sequence[float]) -> torch.Tensor:
+        """Generate mask for source sequence.
+
+        Args:
+            src_seq (torch.Tensor): Image sequence. Shape :math:`(N, T, C)`.
+            valid_ratios (list[float]): The valid ratio of input image. For
+                example, if the width of the original image is w1 and the width
+                after padding is w2, then valid_ratio = w1/w2. Source mask is
+                used to cover the area of the padding region.
+
+        Returns:
+            Tensor or None: Source mask. Shape :math:`(N, T)`. The region of
+            padding area are False, and the rest are True.
+        """
+
+        N, T, _ = src_seq.size()
+        mask = None
+        if len(valid_ratios) > 0:
+            mask = src_seq.new_zeros((N, T), device=src_seq.device)
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(T, math.ceil(T * valid_ratio))
+                mask[i, :valid_width] = 1
+
+        return mask
+
+    def _attention(self,
+                   trg_seq: torch.Tensor,
+                   src: torch.Tensor,
+                   src_mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """A wrapped process for transformer based decoder including text
+        embedding, position embedding, N x transformer decoder and a LayerNorm
+        operation.
+
+        Args:
+            trg_seq (Tensor): Target sequence in. Shape :math:`(N, T)`.
+            src (Tensor): Source sequence from encoder in shape
+                Shape :math:`(N, T, D_m)` where :math:`D_m` is ``d_model``.
+            src_mask (Tensor, Optional): Mask for source sequence.
+                Shape :math:`(N, T)`. Defaults to None.
+
+        Returns:
+            Tensor: Output sequence from transformer decoder.
+            Shape :math:`(N, T, D_m)` where :math:`D_m` is ``d_model``.
+        """
+
+        trg_embedding = self.trg_word_emb(trg_seq)
+        trg_pos_encoded = self.position_enc(trg_embedding)
+        trg_mask = self._get_target_mask(trg_seq)
+        tgt_seq = self.dropout(trg_pos_encoded)
+
+        output = tgt_seq
+        for dec_layer in self.layer_stack:
+            output = dec_layer(
+                output,
+                src,
+                self_attn_mask=trg_mask,
+                dec_enc_attn_mask=src_mask)
+        output = self.layer_norm(output)
+
+        return output
+
+    def forward_train(
+            self,
+            feat: Optional[torch.Tensor] = None,
+            out_enc: torch.Tensor = None,
+            data_samples: Sequence[TextRecogDataSample] = None
+    ) -> torch.Tensor:
+        """Forward for training. Source mask will be used here.
+
+        Args:
+            feat (Tensor, optional): Unused.
+            out_enc (Tensor): Encoder output of shape : math:`(N, T, D_m)`
+                where :math:`D_m` is ``d_model``. Defaults to None.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text and valid_ratio
+                information. Defaults to None.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, T, C)` where
+            :math:`C` is ``num_classes``.
+        """
+        valid_ratios = []
+        for data_sample in data_samples:
+            valid_ratios.append(data_sample.get('valid_ratio'))
+        src_mask = self._get_source_mask(feat, valid_ratios)
+        trg_seq = []
+        for data_sample in data_samples:
+            trg_seq.append(data_sample.gt_text.padded_indexes.to(feat.device))
+        trg_seq = torch.stack(trg_seq, dim=0)
+        attn_output = self._attention(trg_seq, feat, src_mask=src_mask)
+        outputs = self.classifier(attn_output)
+
+        return outputs
+
+    def forward_test(
+            self,
+            feat: Optional[torch.Tensor] = None,
+            out_enc: torch.Tensor = None,
+            data_samples: Sequence[TextRecogDataSample] = None
+    ) -> torch.Tensor:
+        """Forward for testing.
+
+        Args:
+            feat (Tensor, optional): Unused.
+            out_enc (Tensor): Encoder output of shape:
+                math:`(N, T, D_m)` where :math:`D_m` is ``d_model``.
+                Defaults to None.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text and valid_ratio
+                information. Defaults to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        valid_ratios = []
+        for data_sample in data_samples:
+            valid_ratios.append(data_sample.get('valid_ratio'))
+        src_mask = self._get_source_mask(feat, valid_ratios)
+        N = feat.size(0)
+        init_target_seq = torch.full((N, self.max_seq_len + 1),
+                                     self.padding_idx,
+                                     device=feat.device,
+                                     dtype=torch.long)
+        # bsz * seq_len
+        init_target_seq[:, 0] = self.start_idx
+
+        outputs = []
+        for step in range(0, self.max_seq_len):
+            decoder_output = self._attention(
+                init_target_seq, feat, src_mask=src_mask)
+            # bsz * seq_len * C
+            step_result = self.classifier(decoder_output[:, step, :])
+            # bsz * num_classes
+            outputs.append(step_result)
+            _, step_max_index = torch.max(step_result, dim=-1)
+            init_target_seq[:, step + 1] = step_max_index
+
+        outputs = torch.stack(outputs, dim=1)
+
+        return self.softmax(outputs)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/master_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/master_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..b92b4fc8f4538e1dd9f2485509e27f7036532ce7
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/master_decoder.py
@@ -0,0 +1,275 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import math
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from mmcv.cnn.bricks.transformer import BaseTransformerLayer
+from mmengine.model import ModuleList
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.common.modules import PositionalEncoding
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+def clones(module: nn.Module, N: int) -> nn.ModuleList:
+    """Produce N identical layers.
+
+    Args:
+        module (nn.Module): A pytorch nn.module.
+        N (int): Number of copies.
+
+    Returns:
+        nn.ModuleList: A pytorch nn.ModuleList with the copies.
+    """
+    return nn.ModuleList([copy.deepcopy(module) for _ in range(N)])
+
+
+class Embeddings(nn.Module):
+    """Construct the word embeddings given vocab size and embed dim.
+
+    Args:
+        d_model (int): The embedding dimension.
+        vocab (int): Vocablury size.
+    """
+
+    def __init__(self, d_model: int, vocab: int):
+        super().__init__()
+        self.lut = nn.Embedding(vocab, d_model)
+        self.d_model = d_model
+
+    def forward(self, *input: torch.Tensor) -> torch.Tensor:
+        """Forward the embeddings.
+
+        Args:
+            input (torch.Tensor): The input tensors.
+
+        Returns:
+            torch.Tensor: The embeddings.
+        """
+        x = input[0]
+        return self.lut(x) * math.sqrt(self.d_model)
+
+
+@MODELS.register_module()
+class MasterDecoder(BaseDecoder):
+    """Decoder module in `MASTER <https://arxiv.org/abs/1910.02562>`_.
+
+    Code is partially modified from https://github.com/wenwenyu/MASTER-pytorch.
+
+    Args:
+        n_layers (int): Number of attention layers. Defaults to 3.
+        n_head (int): Number of parallel attention heads. Defaults to 8.
+        d_model (int): Dimension :math:`E` of the input from previous model.
+            Defaults to 512.
+        feat_size (int): The size of the input feature from previous model,
+            usually :math:`H * W`. Defaults to 6 * 40.
+        d_inner (int): Hidden dimension of feedforward layers.
+            Defaults to 2048.
+        attn_drop (float): Dropout rate of the attention layer. Defaults to 0.
+        ffn_drop (float): Dropout rate of the feedforward layer. Defaults to 0.
+        feat_pe_drop (float): Dropout rate of the feature positional encoding
+            layer. Defaults to 0.2.
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`. Defaults to None.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        max_seq_len (int): Maximum output sequence length :math:`T`. Defaults
+            to 30.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(
+        self,
+        n_layers: int = 3,
+        n_head: int = 8,
+        d_model: int = 512,
+        feat_size: int = 6 * 40,
+        d_inner: int = 2048,
+        attn_drop: float = 0.,
+        ffn_drop: float = 0.,
+        feat_pe_drop: float = 0.2,
+        module_loss: Optional[Dict] = None,
+        postprocessor: Optional[Dict] = None,
+        dictionary: Optional[Union[Dict, Dictionary]] = None,
+        max_seq_len: int = 30,
+        init_cfg: Optional[Union[Dict, Sequence[Dict]]] = None,
+    ):
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            dictionary=dictionary,
+            init_cfg=init_cfg,
+            max_seq_len=max_seq_len)
+        operation_order = ('norm', 'self_attn', 'norm', 'cross_attn', 'norm',
+                           'ffn')
+        decoder_layer = BaseTransformerLayer(
+            operation_order=operation_order,
+            attn_cfgs=dict(
+                type='MultiheadAttention',
+                embed_dims=d_model,
+                num_heads=n_head,
+                attn_drop=attn_drop,
+                dropout_layer=dict(type='Dropout', drop_prob=attn_drop),
+            ),
+            ffn_cfgs=dict(
+                type='FFN',
+                embed_dims=d_model,
+                feedforward_channels=d_inner,
+                ffn_drop=ffn_drop,
+                dropout_layer=dict(type='Dropout', drop_prob=ffn_drop),
+            ),
+            norm_cfg=dict(type='LN'),
+            batch_first=True,
+        )
+        self.decoder_layers = ModuleList(
+            [copy.deepcopy(decoder_layer) for _ in range(n_layers)])
+
+        self.cls = nn.Linear(d_model, self.dictionary.num_classes)
+
+        self.SOS = self.dictionary.start_idx
+        self.PAD = self.dictionary.padding_idx
+        self.max_seq_len = max_seq_len
+        self.feat_size = feat_size
+        self.n_head = n_head
+
+        self.embedding = Embeddings(
+            d_model=d_model, vocab=self.dictionary.num_classes)
+
+        # TODO:
+        self.positional_encoding = PositionalEncoding(
+            d_hid=d_model, n_position=self.max_seq_len + 1)
+        self.feat_positional_encoding = PositionalEncoding(
+            d_hid=d_model, n_position=self.feat_size, dropout=feat_pe_drop)
+        self.norm = nn.LayerNorm(d_model)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def make_target_mask(self, tgt: torch.Tensor,
+                         device: torch.device) -> torch.Tensor:
+        """Make target mask for self attention.
+
+        Args:
+            tgt (Tensor): Shape [N, l_tgt]
+            device (torch.device): Mask device.
+
+        Returns:
+            Tensor: Mask of shape [N * self.n_head, l_tgt, l_tgt]
+        """
+
+        trg_pad_mask = (tgt != self.PAD).unsqueeze(1).unsqueeze(3).bool()
+        tgt_len = tgt.size(1)
+        trg_sub_mask = torch.tril(
+            torch.ones((tgt_len, tgt_len), dtype=torch.bool, device=device))
+        tgt_mask = trg_pad_mask & trg_sub_mask
+
+        # inverse for mmcv's BaseTransformerLayer
+        tril_mask = tgt_mask.clone()
+        tgt_mask = tgt_mask.float().masked_fill_(tril_mask == 0, -1e9)
+        tgt_mask = tgt_mask.masked_fill_(tril_mask, 0)
+        tgt_mask = tgt_mask.repeat(1, self.n_head, 1, 1)
+        tgt_mask = tgt_mask.view(-1, tgt_len, tgt_len)
+        return tgt_mask
+
+    def decode(self, tgt_seq: torch.Tensor, feature: torch.Tensor,
+               src_mask: torch.BoolTensor,
+               tgt_mask: torch.BoolTensor) -> torch.Tensor:
+        """Decode the input sequence.
+
+        Args:
+            tgt_seq (Tensor): Target sequence of shape: math: `(N, T, C)`.
+            feature (Tensor): Input feature map from encoder of
+                shape: math: `(N, C, H, W)`
+            src_mask (BoolTensor): The source mask of shape: math: `(N, H*W)`.
+            tgt_mask (BoolTensor): The target mask of shape: math: `(N, T, T)`.
+
+        Return:
+            Tensor: The decoded sequence.
+        """
+        tgt_seq = self.embedding(tgt_seq)
+        x = self.positional_encoding(tgt_seq)
+        attn_masks = [tgt_mask, src_mask]
+        for layer in self.decoder_layers:
+            x = layer(
+                query=x, key=feature, value=feature, attn_masks=attn_masks)
+        x = self.norm(x)
+        return self.cls(x)
+
+    def forward_train(self,
+                      feat: Optional[torch.Tensor] = None,
+                      out_enc: torch.Tensor = None,
+                      data_samples: Sequence[TextRecogDataSample] = None
+                      ) -> torch.Tensor:
+        """Forward for training. Source mask will not be used here.
+
+        Args:
+            feat (Tensor, optional): Input feature map from backbone.
+            out_enc (Tensor): Unused.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text and valid_ratio
+                information.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, T, C)` where
+            :math:`C` is ``num_classes``.
+        """
+
+        # flatten 2D feature map
+        if len(feat.shape) > 3:
+            b, c, h, w = feat.shape
+            feat = feat.view(b, c, h * w)
+            feat = feat.permute((0, 2, 1))
+        feat = self.feat_positional_encoding(feat)
+
+        trg_seq = []
+        for target in data_samples:
+            trg_seq.append(target.gt_text.padded_indexes.to(feat.device))
+
+        trg_seq = torch.stack(trg_seq, dim=0)
+
+        src_mask = None
+        tgt_mask = self.make_target_mask(trg_seq, device=feat.device)
+        return self.decode(trg_seq, feat, src_mask, tgt_mask)
+
+    def forward_test(self,
+                     feat: Optional[torch.Tensor] = None,
+                     out_enc: torch.Tensor = None,
+                     data_samples: Sequence[TextRecogDataSample] = None
+                     ) -> torch.Tensor:
+        """Forward for testing.
+
+        Args:
+            feat (Tensor, optional): Input feature map from backbone.
+            out_enc (Tensor): Unused.
+            data_samples (list[TextRecogDataSample]): Unused.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+
+        # flatten 2D feature map
+        if len(feat.shape) > 3:
+            b, c, h, w = feat.shape
+            feat = feat.view(b, c, h * w)
+            feat = feat.permute((0, 2, 1))
+        feat = self.feat_positional_encoding(feat)
+
+        N = feat.shape[0]
+        input = torch.full((N, 1),
+                           self.SOS,
+                           device=feat.device,
+                           dtype=torch.long)
+        output = None
+        for _ in range(self.max_seq_len):
+            target_mask = self.make_target_mask(input, device=feat.device)
+            out = self.decode(input, feat, None, target_mask)
+            output = out
+            _, next_word = torch.max(out, dim=-1)
+            input = torch.cat([input, next_word[:, -1].unsqueeze(-1)], dim=1)
+        return self.softmax(output)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/nrtr_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/nrtr_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..dc986c48807e696b2001d3d91ae33a0312ae9044
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/nrtr_decoder.py
@@ -0,0 +1,257 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from mmengine.model import ModuleList
+
+from mmocr.models.common import PositionalEncoding, TFDecoderLayer
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class NRTRDecoder(BaseDecoder):
+    """Transformer Decoder block with self attention mechanism.
+
+    Args:
+        n_layers (int): Number of attention layers. Defaults to 6.
+        d_embedding (int): Language embedding dimension. Defaults to 512.
+        n_head (int): Number of parallel attention heads. Defaults to 8.
+        d_k (int): Dimension of the key vector. Defaults to 64.
+        d_v (int): Dimension of the value vector. Defaults to 64
+        d_model (int): Dimension :math:`D_m` of the input from previous model.
+            Defaults to 512.
+        d_inner (int): Hidden dimension of feedforward layers. Defaults to 256.
+        n_position (int): Length of the positional encoding vector. Must be
+            greater than ``max_seq_len``. Defaults to 200.
+        dropout (float): Dropout rate for text embedding, MHSA, FFN. Defaults
+            to 0.1.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        max_seq_len (int): Maximum output sequence length :math:`T`. Defaults
+            to 30.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(self,
+                 n_layers: int = 6,
+                 d_embedding: int = 512,
+                 n_head: int = 8,
+                 d_k: int = 64,
+                 d_v: int = 64,
+                 d_model: int = 512,
+                 d_inner: int = 256,
+                 n_position: int = 200,
+                 dropout: float = 0.1,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 dictionary: Optional[Union[Dict, Dictionary]] = None,
+                 max_seq_len: int = 30,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            dictionary=dictionary,
+            init_cfg=init_cfg,
+            max_seq_len=max_seq_len)
+
+        self.padding_idx = self.dictionary.padding_idx
+        self.start_idx = self.dictionary.start_idx
+        self.max_seq_len = max_seq_len
+
+        self.trg_word_emb = nn.Embedding(
+            self.dictionary.num_classes,
+            d_embedding,
+            padding_idx=self.padding_idx)
+
+        self.position_enc = PositionalEncoding(
+            d_embedding, n_position=n_position)
+        self.dropout = nn.Dropout(p=dropout)
+
+        self.layer_stack = ModuleList([
+            TFDecoderLayer(
+                d_model, d_inner, n_head, d_k, d_v, dropout=dropout)
+            for _ in range(n_layers)
+        ])
+        self.layer_norm = nn.LayerNorm(d_model, eps=1e-6)
+
+        pred_num_class = self.dictionary.num_classes
+        self.classifier = nn.Linear(d_model, pred_num_class)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def _get_target_mask(self, trg_seq: torch.Tensor) -> torch.Tensor:
+        """Generate mask for target sequence.
+
+        Args:
+            trg_seq (torch.Tensor): Input text sequence. Shape :math:`(N, T)`.
+
+        Returns:
+            Tensor: Target mask. Shape :math:`(N, T, T)`.
+            E.g.:
+            seq = torch.Tensor([[1, 2, 0, 0]]), pad_idx = 0, then
+            target_mask =
+            torch.Tensor([[[True, False, False, False],
+            [True, True, False, False],
+            [True, True, False, False],
+            [True, True, False, False]]])
+        """
+
+        pad_mask = (trg_seq != self.padding_idx).unsqueeze(-2)
+
+        len_s = trg_seq.size(1)
+        subsequent_mask = 1 - torch.triu(
+            torch.ones((len_s, len_s), device=trg_seq.device), diagonal=1)
+        subsequent_mask = subsequent_mask.unsqueeze(0).bool()
+
+        return pad_mask & subsequent_mask
+
+    def _get_source_mask(self, src_seq: torch.Tensor,
+                         valid_ratios: Sequence[float]) -> torch.Tensor:
+        """Generate mask for source sequence.
+
+        Args:
+            src_seq (torch.Tensor): Image sequence. Shape :math:`(N, T, C)`.
+            valid_ratios (list[float]): The valid ratio of input image. For
+                example, if the width of the original image is w1 and the width
+                after padding is w2, then valid_ratio = w1/w2. Source mask is
+                used to cover the area of the padding region.
+
+        Returns:
+            Tensor or None: Source mask. Shape :math:`(N, T)`. The region of
+            padding area are False, and the rest are True.
+        """
+
+        N, T, _ = src_seq.size()
+        mask = None
+        if len(valid_ratios) > 0:
+            mask = src_seq.new_zeros((N, T), device=src_seq.device)
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(T, math.ceil(T * valid_ratio))
+                mask[i, :valid_width] = 1
+
+        return mask
+
+    def _attention(self,
+                   trg_seq: torch.Tensor,
+                   src: torch.Tensor,
+                   src_mask: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """A wrapped process for transformer based decoder including text
+        embedding, position embedding, N x transformer decoder and a LayerNorm
+        operation.
+
+        Args:
+            trg_seq (Tensor): Target sequence in. Shape :math:`(N, T)`.
+            src (Tensor): Source sequence from encoder in shape
+                Shape :math:`(N, T, D_m)` where :math:`D_m` is ``d_model``.
+            src_mask (Tensor, Optional): Mask for source sequence.
+                Shape :math:`(N, T)`. Defaults to None.
+
+        Returns:
+            Tensor: Output sequence from transformer decoder.
+            Shape :math:`(N, T, D_m)` where :math:`D_m` is ``d_model``.
+        """
+
+        trg_embedding = self.trg_word_emb(trg_seq)
+        trg_pos_encoded = self.position_enc(trg_embedding)
+        trg_mask = self._get_target_mask(trg_seq)
+        tgt_seq = self.dropout(trg_pos_encoded)
+
+        output = tgt_seq
+        for dec_layer in self.layer_stack:
+            output = dec_layer(
+                output,
+                src,
+                self_attn_mask=trg_mask,
+                dec_enc_attn_mask=src_mask)
+        output = self.layer_norm(output)
+
+        return output
+
+    def forward_train(self,
+                      feat: Optional[torch.Tensor] = None,
+                      out_enc: torch.Tensor = None,
+                      data_samples: Sequence[TextRecogDataSample] = None
+                      ) -> torch.Tensor:
+        """Forward for training. Source mask will be used here.
+
+        Args:
+            feat (Tensor, optional): Unused.
+            out_enc (Tensor): Encoder output of shape : math:`(N, T, D_m)`
+                where :math:`D_m` is ``d_model``. Defaults to None.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text and valid_ratio
+                information. Defaults to None.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, T, C)` where
+            :math:`C` is ``num_classes``.
+        """
+        valid_ratios = []
+        for data_sample in data_samples:
+            valid_ratios.append(data_sample.get('valid_ratio'))
+        src_mask = self._get_source_mask(out_enc, valid_ratios)
+        trg_seq = []
+        for data_sample in data_samples:
+            trg_seq.append(
+                data_sample.gt_text.padded_indexes.to(out_enc.device))
+        trg_seq = torch.stack(trg_seq, dim=0)
+        attn_output = self._attention(trg_seq, out_enc, src_mask=src_mask)
+        outputs = self.classifier(attn_output)
+
+        return outputs
+
+    def forward_test(self,
+                     feat: Optional[torch.Tensor] = None,
+                     out_enc: torch.Tensor = None,
+                     data_samples: Sequence[TextRecogDataSample] = None
+                     ) -> torch.Tensor:
+        """Forward for testing.
+
+        Args:
+            feat (Tensor, optional): Unused.
+            out_enc (Tensor): Encoder output of shape:
+                math:`(N, T, D_m)` where :math:`D_m` is ``d_model``.
+                Defaults to None.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text and valid_ratio
+                information. Defaults to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        valid_ratios = []
+        for data_sample in data_samples:
+            valid_ratios.append(data_sample.get('valid_ratio'))
+        src_mask = self._get_source_mask(out_enc, valid_ratios)
+        N = out_enc.size(0)
+        init_target_seq = torch.full((N, self.max_seq_len + 1),
+                                     self.padding_idx,
+                                     device=out_enc.device,
+                                     dtype=torch.long)
+        # bsz * seq_len
+        init_target_seq[:, 0] = self.start_idx
+
+        outputs = []
+        for step in range(0, self.max_seq_len):
+            decoder_output = self._attention(
+                init_target_seq, out_enc, src_mask=src_mask)
+            # bsz * seq_len * C
+            step_result = self.classifier(decoder_output[:, step, :])
+            # bsz * num_classes
+            outputs.append(step_result)
+            _, step_max_index = torch.max(step_result, dim=-1)
+            init_target_seq[:, step + 1] = step_max_index
+
+        outputs = torch.stack(outputs, dim=1)
+
+        return self.softmax(outputs)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/position_attention_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/position_attention_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..7543c2b199814143fab916d811cc419c1163274a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/position_attention_decoder.py
@@ -0,0 +1,220 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.layers import (DotProductAttentionLayer,
+                                           PositionAwareLayer)
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class PositionAttentionDecoder(BaseDecoder):
+    """Position attention decoder for RobustScanner.
+
+    RobustScanner: `RobustScanner: Dynamically Enhancing Positional Clues for
+    Robust Text Recognition <https://arxiv.org/abs/2007.07542>`_
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        rnn_layers (int): Number of RNN layers. Defaults to 2.
+        dim_input (int): Dimension :math:`D_i` of input vector ``feat``.
+            Defaults to 512.
+        dim_model (int): Dimension :math:`D_m` of the model. Should also be the
+            same as encoder output vector ``out_enc``. Defaults to 128.
+        max_seq_len (int): Maximum output sequence length :math:`T`. Defaults
+            to 40.
+        mask (bool): Whether to mask input features according to
+            ``img_meta['valid_ratio']``. Defaults to True.
+        return_feature (bool): Return feature or logits as the result. Defaults
+            to True.
+        encode_value (bool): Whether to use the output of encoder ``out_enc``
+            as `value` of attention layer. If False, the original feature
+            ``feat`` will be used. Defaults to False.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dictionary, Dict],
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 rnn_layers: int = 2,
+                 dim_input: int = 512,
+                 dim_model: int = 128,
+                 max_seq_len: int = 40,
+                 mask: bool = True,
+                 return_feature: bool = True,
+                 encode_value: bool = False,
+                 init_cfg: Optional[Union[Dict,
+                                          Sequence[Dict]]] = None) -> None:
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        self.dim_input = dim_input
+        self.dim_model = dim_model
+        self.return_feature = return_feature
+        self.encode_value = encode_value
+        self.mask = mask
+
+        self.embedding = nn.Embedding(self.max_seq_len + 1, self.dim_model)
+
+        self.position_aware_module = PositionAwareLayer(
+            self.dim_model, rnn_layers)
+
+        self.attention_layer = DotProductAttentionLayer()
+
+        self.prediction = None
+        if not self.return_feature:
+            self.prediction = nn.Linear(
+                dim_model if encode_value else dim_input,
+                self.dictionary.num_classes)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def _get_position_index(self,
+                            length: int,
+                            batch_size: int,
+                            device: Optional[torch.device] = None
+                            ) -> torch.Tensor:
+        """Get position index for position attention.
+
+        Args:
+            length (int): Length of the sequence.
+            batch_size (int): Batch size.
+            device (torch.device, optional): Device. Defaults to None.
+
+        Returns:
+            torch.Tensor: Position index.
+        """
+        position_index = torch.arange(0, length, device=device)
+        position_index = position_index.repeat([batch_size, 1])
+        position_index = position_index.long()
+        return position_index
+
+    def forward_train(self, feat: torch.Tensor, out_enc: torch.Tensor,
+                      data_samples: Sequence[TextRecogDataSample]
+                      ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: A raw logit tensor of shape :math:`(N, T, C)` if
+            ``return_feature=False``. Otherwise it will be the hidden feature
+            before the prediction projection layer, whose shape is
+            :math:`(N, T, D_m)`.
+        """
+        valid_ratios = [
+            data_sample.get('valid_ratio', 1.0) for data_sample in data_samples
+        ] if self.mask else None
+
+        #
+        n, c_enc, h, w = out_enc.size()
+        assert c_enc == self.dim_model
+        _, c_feat, _, _ = feat.size()
+        assert c_feat == self.dim_input
+        position_index = self._get_position_index(self.max_seq_len, n,
+                                                  feat.device)
+
+        position_out_enc = self.position_aware_module(out_enc)
+
+        query = self.embedding(position_index)
+        query = query.permute(0, 2, 1).contiguous()
+        key = position_out_enc.view(n, c_enc, h * w)
+        if self.encode_value:
+            value = out_enc.view(n, c_enc, h * w)
+        else:
+            value = feat.view(n, c_feat, h * w)
+
+        mask = None
+        if valid_ratios is not None:
+            mask = query.new_zeros((n, h, w))
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(w, math.ceil(w * valid_ratio))
+                mask[i, :, valid_width:] = 1
+            mask = mask.bool()
+            mask = mask.view(n, h * w)
+
+        attn_out = self.attention_layer(query, key, value, mask)
+        attn_out = attn_out.permute(0, 2,
+                                    1).contiguous()  # [n, max_seq_len, dim_v]
+
+        if self.return_feature:
+            return attn_out
+
+        return self.prediction(attn_out)
+
+    def forward_test(self, feat: torch.Tensor, out_enc: torch.Tensor,
+                     img_metas: Sequence[TextRecogDataSample]) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: Character probabilities of shape :math:`(N, T, C)` if
+            ``return_feature=False``. Otherwise it would be the hidden feature
+            before the prediction projection layer, whose shape is
+            :math:`(N, T, D_m)`.
+        """
+        valid_ratios = [
+            img_meta.get('valid_ratio', 1.0) for img_meta in img_metas
+        ] if self.mask else None
+
+        seq_len = self.max_seq_len
+        n, c_enc, h, w = out_enc.size()
+        assert c_enc == self.dim_model
+        _, c_feat, _, _ = feat.size()
+        assert c_feat == self.dim_input
+
+        position_index = self._get_position_index(seq_len, n, feat.device)
+
+        position_out_enc = self.position_aware_module(out_enc)
+
+        query = self.embedding(position_index)
+        query = query.permute(0, 2, 1).contiguous()
+        key = position_out_enc.view(n, c_enc, h * w)
+        if self.encode_value:
+            value = out_enc.view(n, c_enc, h * w)
+        else:
+            value = feat.view(n, c_feat, h * w)
+
+        mask = None
+        if valid_ratios is not None:
+            mask = query.new_zeros((n, h, w))
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(w, math.ceil(w * valid_ratio))
+                mask[i, :, valid_width:] = 1
+            mask = mask.bool()
+            mask = mask.view(n, h * w)
+
+        attn_out = self.attention_layer(query, key, value, mask)
+        attn_out = attn_out.permute(0, 2, 1).contiguous()
+
+        if self.return_feature:
+            return attn_out
+
+        return self.softmax(self.prediction(attn_out))
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/robust_scanner_fuser.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/robust_scanner_fuser.py
new file mode 100644
index 0000000000000000000000000000000000000000..be954e53fcfd13af59395ea911cb91f67c378c3f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/robust_scanner_fuser.py
@@ -0,0 +1,146 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class RobustScannerFuser(BaseDecoder):
+    """Decoder for RobustScanner.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        hybrid_decoder (dict): Config to build hybrid_decoder. Defaults to
+            dict(type='SequenceAttentionDecoder').
+        position_decoder (dict): Config to build position_decoder. Defaults to
+            dict(type='PositionAttentionDecoder').
+        fuser (dict): Config to build fuser. Defaults to
+            dict(type='RobustScannerFuser').
+        max_seq_len (int): Maximum sequence length. The
+            sequence is usually generated from decoder. Defaults to 30.
+        in_channels (list[int]): List of input channels.
+            Defaults to [512, 512].
+        dim (int): The dimension on which to split the input. Defaults to -1.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 hybrid_decoder: Dict = dict(type='SequenceAttentionDecoder'),
+                 position_decoder: Dict = dict(
+                     type='PositionAttentionDecoder'),
+                 max_seq_len: int = 30,
+                 in_channels: List[int] = [512, 512],
+                 dim: int = -1,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        for cfg_name in ['hybrid_decoder', 'position_decoder']:
+            cfg = eval(cfg_name)
+            if cfg is not None:
+                if cfg.get('dictionary', None) is None:
+                    cfg.update(dictionary=self.dictionary)
+                else:
+                    warnings.warn(f"Using dictionary {cfg['dictionary']} "
+                                  "in decoder's config.")
+                if cfg.get('max_seq_len', None) is None:
+                    cfg.update(max_seq_len=max_seq_len)
+                else:
+                    warnings.warn(f"Using max_seq_len {cfg['max_seq_len']} "
+                                  "in decoder's config.")
+                setattr(self, cfg_name, MODELS.build(cfg))
+
+        in_channels = sum(in_channels)
+        self.dim = dim
+
+        self.linear_layer = nn.Linear(in_channels, in_channels)
+        self.glu_layer = nn.GLU(dim=dim)
+        self.prediction = nn.Linear(
+            int(in_channels / 2), self.dictionary.num_classes)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def forward_train(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for training.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map from backbone of
+                shape :math:`(N, E, H, W)`. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+        """
+        hybrid_glimpse = self.hybrid_decoder(feat, out_enc, data_samples)
+        position_glimpse = self.position_decoder(feat, out_enc, data_samples)
+        fusion_input = torch.cat([hybrid_glimpse, position_glimpse], self.dim)
+        outputs = self.linear_layer(fusion_input)
+        outputs = self.glu_layer(outputs)
+        return self.prediction(outputs)
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for testing.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map from backbone of
+                shape :math:`(N, E, H, W)`. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing vaild_ratio information.
+                Defaults to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        position_glimpse = self.position_decoder(feat, out_enc, data_samples)
+
+        batch_size = feat.size(0)
+        decode_sequence = (feat.new_ones((batch_size, self.max_seq_len)) *
+                           self.dictionary.start_idx).long()
+        outputs = []
+        for step in range(self.max_seq_len):
+            hybrid_glimpse_step = self.hybrid_decoder.forward_test_step(
+                feat, out_enc, decode_sequence, step, data_samples)
+
+            fusion_input = torch.cat(
+                [hybrid_glimpse_step, position_glimpse[:, step, :]], self.dim)
+            output = self.linear_layer(fusion_input)
+            output = self.glu_layer(output)
+            output = self.prediction(output)
+            _, max_idx = torch.max(output, dim=1, keepdim=False)
+            if step < self.max_seq_len - 1:
+                decode_sequence[:, step + 1] = max_idx
+            outputs.append(output)
+        outputs = torch.stack(outputs, 1)
+        return self.softmax(outputs)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sar_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sar_decoder.py
new file mode 100755
index 0000000000000000000000000000000000000000..d156c30fd144a5256965c7bc376ab5645c925792
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sar_decoder.py
@@ -0,0 +1,574 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class ParallelSARDecoder(BaseDecoder):
+    """Implementation Parallel Decoder module in `SAR.
+
+    <https://arxiv.org/abs/1811.00751>`_.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        enc_bi_rnn (bool): If True, use bidirectional RNN in encoder.
+            Defaults to False.
+        dec_bi_rnn (bool): If True, use bidirectional RNN in decoder.
+            Defaults to False.
+        dec_rnn_dropout (float): Dropout of RNN layer in decoder.
+            Defaults to 0.0.
+        dec_gru (bool): If True, use GRU, else LSTM in decoder. Defaults to
+            False.
+        d_model (int): Dim of channels from backbone :math:`D_i`. Defaults
+            to 512.
+        d_enc (int): Dim of encoder RNN layer :math:`D_m`. Defaults to 512.
+        d_k (int): Dim of channels of attention module. Defaults to 64.
+        pred_dropout (float): Dropout probability of prediction layer. Defaults
+            to 0.0.
+        max_seq_len (int): Maximum sequence length for decoding. Defaults to
+            30.
+        mask (bool): If True, mask padding in feature map. Defaults to True.
+        pred_concat (bool): If True, concat glimpse feature from
+            attention with holistic feature and hidden state. Defaults to
+            False.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 enc_bi_rnn: bool = False,
+                 dec_bi_rnn: bool = False,
+                 dec_rnn_dropout: Union[int, float] = 0.0,
+                 dec_gru: bool = False,
+                 d_model: int = 512,
+                 d_enc: int = 512,
+                 d_k: int = 64,
+                 pred_dropout: float = 0.0,
+                 max_seq_len: int = 30,
+                 mask: bool = True,
+                 pred_concat: bool = False,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None,
+                 **kwargs) -> None:
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            max_seq_len=max_seq_len,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
+
+        self.num_classes = self.dictionary.num_classes
+        self.enc_bi_rnn = enc_bi_rnn
+        self.d_k = d_k
+        self.start_idx = self.dictionary.start_idx
+        self.mask = mask
+        self.pred_concat = pred_concat
+
+        encoder_rnn_out_size = d_enc * (int(enc_bi_rnn) + 1)
+        decoder_rnn_out_size = encoder_rnn_out_size * (int(dec_bi_rnn) + 1)
+        # 2D attention layer
+        self.conv1x1_1 = nn.Linear(decoder_rnn_out_size, d_k)
+        self.conv3x3_1 = nn.Conv2d(
+            d_model, d_k, kernel_size=3, stride=1, padding=1)
+        self.conv1x1_2 = nn.Linear(d_k, 1)
+
+        # Decoder RNN layer
+        kwargs = dict(
+            input_size=encoder_rnn_out_size,
+            hidden_size=encoder_rnn_out_size,
+            num_layers=2,
+            batch_first=True,
+            dropout=dec_rnn_dropout,
+            bidirectional=dec_bi_rnn)
+        if dec_gru:
+            self.rnn_decoder = nn.GRU(**kwargs)
+        else:
+            self.rnn_decoder = nn.LSTM(**kwargs)
+
+        # Decoder input embedding
+        self.embedding = nn.Embedding(
+            self.num_classes,
+            encoder_rnn_out_size,
+            padding_idx=self.dictionary.padding_idx)
+
+        # Prediction layer
+        self.pred_dropout = nn.Dropout(pred_dropout)
+        if pred_concat:
+            fc_in_channel = decoder_rnn_out_size + d_model + \
+                            encoder_rnn_out_size
+        else:
+            fc_in_channel = d_model
+        self.prediction = nn.Linear(fc_in_channel, self.num_classes)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def _2d_attention(self,
+                      decoder_input: torch.Tensor,
+                      feat: torch.Tensor,
+                      holistic_feat: torch.Tensor,
+                      valid_ratios: Optional[Sequence[float]] = None
+                      ) -> torch.Tensor:
+        """2D attention layer.
+
+        Args:
+            decoder_input (torch.Tensor): Input of decoder RNN.
+            feat (torch.Tensor): Feature map of encoder.
+            holistic_feat (torch.Tensor): Feature map of holistic encoder.
+            valid_ratios (Sequence[float]): Valid ratios of attention.
+                Defaults to None.
+
+        Returns:
+            torch.Tensor: Output of 2D attention layer.
+        """
+        y = self.rnn_decoder(decoder_input)[0]
+        # y: bsz * (seq_len + 1) * hidden_size
+
+        attn_query = self.conv1x1_1(y)  # bsz * (seq_len + 1) * attn_size
+        bsz, seq_len, attn_size = attn_query.size()
+        attn_query = attn_query.view(bsz, seq_len, attn_size, 1, 1)
+
+        attn_key = self.conv3x3_1(feat)
+        # bsz * attn_size * h * w
+        attn_key = attn_key.unsqueeze(1)
+        # bsz * 1 * attn_size * h * w
+
+        attn_weight = torch.tanh(torch.add(attn_key, attn_query, alpha=1))
+        # bsz * (seq_len + 1) * attn_size * h * w
+        attn_weight = attn_weight.permute(0, 1, 3, 4, 2).contiguous()
+        # bsz * (seq_len + 1) * h * w * attn_size
+        attn_weight = self.conv1x1_2(attn_weight)
+        # bsz * (seq_len + 1) * h * w * 1
+        bsz, T, h, w, c = attn_weight.size()
+        assert c == 1
+
+        if valid_ratios is not None:
+            # cal mask of attention weight
+            attn_mask = torch.zeros_like(attn_weight)
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(w, math.ceil(w * valid_ratio))
+                attn_mask[i, :, :, valid_width:, :] = 1
+            attn_weight = attn_weight.masked_fill(attn_mask.bool(),
+                                                  float('-inf'))
+
+        attn_weight = attn_weight.view(bsz, T, -1)
+        attn_weight = F.softmax(attn_weight, dim=-1)
+        attn_weight = attn_weight.view(bsz, T, h, w,
+                                       c).permute(0, 1, 4, 2, 3).contiguous()
+
+        attn_feat = torch.sum(
+            torch.mul(feat.unsqueeze(1), attn_weight), (3, 4), keepdim=False)
+        # bsz * (seq_len + 1) * C
+
+        # linear transformation
+        if self.pred_concat:
+            hf_c = holistic_feat.size(-1)
+            holistic_feat = holistic_feat.expand(bsz, seq_len, hf_c)
+            y = self.prediction(torch.cat((y, attn_feat, holistic_feat), 2))
+        else:
+            y = self.prediction(attn_feat)
+        # bsz * (seq_len + 1) * num_classes
+        y = self.pred_dropout(y)
+
+        return y
+
+    def forward_train(self, feat: torch.Tensor, out_enc: torch.Tensor,
+                      data_samples: Sequence[TextRecogDataSample]
+                      ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text and valid_ratio
+                information.
+
+        Returns:
+            Tensor: A raw logit tensor of shape :math:`(N, T, C)`.
+        """
+        if data_samples is not None:
+            assert len(data_samples) == feat.size(0)
+
+        valid_ratios = [
+            img_meta.get('valid_ratio', 1.0) for img_meta in data_samples
+        ] if self.mask else None
+
+        padded_targets = [
+            data_sample.gt_text.padded_indexes for data_sample in data_samples
+        ]
+        padded_targets = torch.stack(padded_targets, dim=0).to(feat.device)
+        tgt_embedding = self.embedding(padded_targets)
+        # bsz * seq_len * emb_dim
+        out_enc = out_enc.unsqueeze(1)
+        # bsz * 1 * emb_dim
+        in_dec = torch.cat((out_enc, tgt_embedding), dim=1)
+        # bsz * (seq_len + 1) * C
+        out_dec = self._2d_attention(
+            in_dec, feat, out_enc, valid_ratios=valid_ratios)
+        # bsz * (seq_len + 1) * num_classes
+
+        return out_dec[:, 1:, :]  # bsz * seq_len * num_classes
+
+    def forward_test(
+        self,
+        feat: torch.Tensor,
+        out_enc: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing valid_ratio
+                information. Defaults to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        if data_samples is not None:
+            assert len(data_samples) == feat.size(0)
+
+        valid_ratios = None
+        if data_samples is not None:
+            valid_ratios = [
+                data_sample.get('valid_ratio', 1.0)
+                for data_sample in data_samples
+            ] if self.mask else None
+
+        seq_len = self.max_seq_len
+
+        bsz = feat.size(0)
+        start_token = torch.full((bsz, ),
+                                 self.start_idx,
+                                 device=feat.device,
+                                 dtype=torch.long)
+        # bsz
+        start_token = self.embedding(start_token)
+        # bsz * emb_dim
+        start_token = start_token.unsqueeze(1).expand(-1, seq_len, -1)
+        # bsz * seq_len * emb_dim
+        out_enc = out_enc.unsqueeze(1)
+        # bsz * 1 * emb_dim
+        decoder_input = torch.cat((out_enc, start_token), dim=1)
+        # bsz * (seq_len + 1) * emb_dim
+
+        outputs = []
+        for i in range(1, seq_len + 1):
+            decoder_output = self._2d_attention(
+                decoder_input, feat, out_enc, valid_ratios=valid_ratios)
+            char_output = decoder_output[:, i, :]  # bsz * num_classes
+            outputs.append(char_output)
+            _, max_idx = torch.max(char_output, dim=1, keepdim=False)
+            char_embedding = self.embedding(max_idx)  # bsz * emb_dim
+            if i < seq_len:
+                decoder_input[:, i + 1, :] = char_embedding
+
+        outputs = torch.stack(outputs, 1)  # bsz * seq_len * num_classes
+
+        return self.softmax(outputs)
+
+
+@MODELS.register_module()
+class SequentialSARDecoder(BaseDecoder):
+    """Implementation Sequential Decoder module in `SAR.
+
+    <https://arxiv.org/abs/1811.00751>`_.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        enc_bi_rnn (bool): If True, use bidirectional RNN in encoder. Defaults
+            to False.
+        dec_bi_rnn (bool): If True, use bidirectional RNN in decoder. Defaults
+            to False.
+        dec_do_rnn (float): Dropout of RNN layer in decoder. Defaults to 0.
+        dec_gru (bool): If True, use GRU, else LSTM in decoder. Defaults to
+            False.
+        d_k (int): Dim of conv layers in attention module. Defaults to 64.
+        d_model (int): Dim of channels from backbone :math:`D_i`. Defaults to
+            512.
+        d_enc (int): Dim of encoder RNN layer :math:`D_m`. Defaults to 512.
+        pred_dropout (float): Dropout probability of prediction layer. Defaults
+            to 0.
+        max_seq_len (int): Maximum sequence length during decoding. Defaults to
+            40.
+        mask (bool): If True, mask padding in feature map. Defaults to False.
+        pred_concat (bool): If True, concat glimpse feature from
+            attention with holistic feature and hidden state. Defaults to
+            False.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Optional[Union[Dict, Dictionary]] = None,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 enc_bi_rnn: bool = False,
+                 dec_bi_rnn: bool = False,
+                 dec_gru: bool = False,
+                 d_k: int = 64,
+                 d_model: int = 512,
+                 d_enc: int = 512,
+                 pred_dropout: float = 0.0,
+                 mask: bool = True,
+                 max_seq_len: int = 40,
+                 pred_concat: bool = False,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None,
+                 **kwargs):
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        self.num_classes = self.dictionary.num_classes
+        self.enc_bi_rnn = enc_bi_rnn
+        self.d_k = d_k
+        self.start_idx = self.dictionary.start_idx
+        self.dec_gru = dec_gru
+        self.mask = mask
+        self.pred_concat = pred_concat
+
+        encoder_rnn_out_size = d_enc * (int(enc_bi_rnn) + 1)
+        decoder_rnn_out_size = encoder_rnn_out_size * (int(dec_bi_rnn) + 1)
+        # 2D attention layer
+        self.conv1x1_1 = nn.Conv2d(
+            decoder_rnn_out_size, d_k, kernel_size=1, stride=1)
+        self.conv3x3_1 = nn.Conv2d(
+            d_model, d_k, kernel_size=3, stride=1, padding=1)
+        self.conv1x1_2 = nn.Conv2d(d_k, 1, kernel_size=1, stride=1)
+
+        # Decoder rnn layer
+        if dec_gru:
+            self.rnn_decoder_layer1 = nn.GRUCell(encoder_rnn_out_size,
+                                                 encoder_rnn_out_size)
+            self.rnn_decoder_layer2 = nn.GRUCell(encoder_rnn_out_size,
+                                                 encoder_rnn_out_size)
+        else:
+            self.rnn_decoder_layer1 = nn.LSTMCell(encoder_rnn_out_size,
+                                                  encoder_rnn_out_size)
+            self.rnn_decoder_layer2 = nn.LSTMCell(encoder_rnn_out_size,
+                                                  encoder_rnn_out_size)
+
+        # Decoder input embedding
+        self.embedding = nn.Embedding(
+            self.num_classes,
+            encoder_rnn_out_size,
+            padding_idx=self.dictionary.padding_idx)
+
+        # Prediction layer
+        self.pred_dropout = nn.Dropout(pred_dropout)
+        if pred_concat:
+            fc_in_channel = decoder_rnn_out_size + d_model + d_enc
+        else:
+            fc_in_channel = d_model
+        self.prediction = nn.Linear(fc_in_channel, self.num_classes)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def _2d_attention(self,
+                      y_prev: torch.Tensor,
+                      feat: torch.Tensor,
+                      holistic_feat: torch.Tensor,
+                      hx1: torch.Tensor,
+                      cx1: torch.Tensor,
+                      hx2: torch.Tensor,
+                      cx2: torch.Tensor,
+                      valid_ratios: Optional[Sequence[float]] = None
+                      ) -> torch.Tensor:
+        """2D attention layer.
+
+        Args:
+            y_prev (torch.Tensor): Previous decoder hidden state.
+            feat (torch.Tensor): Feature map.
+            holistic_feat (torch.Tensor): Holistic feature map.
+            hx1 (torch.Tensor): rnn decoder layer 1 hidden state.
+            cx1 (torch.Tensor): rnn decoder layer 1 cell state.
+            hx2 (torch.Tensor): rnn decoder layer 2 hidden state.
+            cx2 (torch.Tensor): rnn decoder layer 2 cell state.
+            valid_ratios (Optional[Sequence[float]]): Valid ratios of
+                attention. Defaults to None.
+        """
+        _, _, h_feat, w_feat = feat.size()
+        if self.dec_gru:
+            hx1 = cx1 = self.rnn_decoder_layer1(y_prev, hx1)
+            hx2 = cx2 = self.rnn_decoder_layer2(hx1, hx2)
+        else:
+            hx1, cx1 = self.rnn_decoder_layer1(y_prev, (hx1, cx1))
+            hx2, cx2 = self.rnn_decoder_layer2(hx1, (hx2, cx2))
+
+        tile_hx2 = hx2.view(hx2.size(0), hx2.size(1), 1, 1)
+        attn_query = self.conv1x1_1(tile_hx2)  # bsz * attn_size * 1 * 1
+        attn_query = attn_query.expand(-1, -1, h_feat, w_feat)
+        attn_key = self.conv3x3_1(feat)
+        attn_weight = torch.tanh(torch.add(attn_key, attn_query, alpha=1))
+        attn_weight = self.conv1x1_2(attn_weight)
+        bsz, c, h, w = attn_weight.size()
+        assert c == 1
+
+        if valid_ratios is not None:
+            # cal mask of attention weight
+            attn_mask = torch.zeros_like(attn_weight)
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(w, math.ceil(w * valid_ratio))
+                attn_mask[i, :, :, valid_width:] = 1
+            attn_weight = attn_weight.masked_fill(attn_mask.bool(),
+                                                  float('-inf'))
+
+        attn_weight = F.softmax(attn_weight.view(bsz, -1), dim=-1)
+        attn_weight = attn_weight.view(bsz, c, h, w)
+
+        attn_feat = torch.sum(
+            torch.mul(feat, attn_weight), (2, 3), keepdim=False)  # n * c
+
+        # linear transformation
+        if self.pred_concat:
+            y = self.prediction(torch.cat((hx2, attn_feat, holistic_feat), 1))
+        else:
+            y = self.prediction(attn_feat)
+
+        return y, hx1, hx1, hx2, hx2
+
+    def forward_train(
+        self,
+        feat: torch.Tensor,
+        out_enc: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text and valid_ratio
+                information.
+
+        Returns:
+            Tensor: A raw logit tensor of shape :math:`(N, T, C)`.
+        """
+        valid_ratios = None
+        if data_samples is not None:
+            valid_ratios = [
+                data_sample.get('valid_ratio', 1.0)
+                for data_sample in data_samples
+            ] if self.mask else None
+
+        padded_targets = [
+            data_sample.gt_text.padded_indexes for data_sample in data_samples
+        ]
+        padded_targets = torch.stack(padded_targets, dim=0).to(feat.device)
+        tgt_embedding = self.embedding(padded_targets)
+
+        outputs = []
+        for i in range(-1, self.max_seq_len):
+            if i == -1:
+                if self.dec_gru:
+                    hx1 = cx1 = self.rnn_decoder_layer1(out_enc)
+                    hx2 = cx2 = self.rnn_decoder_layer2(hx1)
+                else:
+                    hx1, cx1 = self.rnn_decoder_layer1(out_enc)
+                    hx2, cx2 = self.rnn_decoder_layer2(hx1)
+            else:
+                y_prev = tgt_embedding[:, i, :]
+                y, hx1, cx1, hx2, cx2 = self._2d_attention(
+                    y_prev,
+                    feat,
+                    out_enc,
+                    hx1,
+                    cx1,
+                    hx2,
+                    cx2,
+                    valid_ratios=valid_ratios)
+                y = self.pred_dropout(y)
+
+                outputs.append(y)
+
+        outputs = torch.stack(outputs, 1)
+
+        return outputs
+
+    def forward_test(
+        self,
+        feat: torch.Tensor,
+        out_enc: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing valid_ratio
+                information.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        valid_ratios = None
+        if data_samples is not None:
+            valid_ratios = [
+                data_sample.get('valid_ratio', 1.0)
+                for data_sample in data_samples
+            ] if self.mask else None
+
+        outputs = []
+        start_token = torch.full((feat.size(0), ),
+                                 self.start_idx,
+                                 device=feat.device,
+                                 dtype=torch.long)
+        start_token = self.embedding(start_token)
+        for i in range(-1, self.max_seq_len):
+            if i == -1:
+                if self.dec_gru:
+                    hx1 = cx1 = self.rnn_decoder_layer1(out_enc)
+                    hx2 = cx2 = self.rnn_decoder_layer2(hx1)
+                else:
+                    hx1, cx1 = self.rnn_decoder_layer1(out_enc)
+                    hx2, cx2 = self.rnn_decoder_layer2(hx1)
+                    y_prev = start_token
+            else:
+                y, hx1, cx1, hx2, cx2 = self._2d_attention(
+                    y_prev,
+                    feat,
+                    out_enc,
+                    hx1,
+                    cx1,
+                    hx2,
+                    cx2,
+                    valid_ratios=valid_ratios)
+                _, max_idx = torch.max(y, dim=1, keepdim=False)
+                char_embedding = self.embedding(max_idx)
+                y_prev = char_embedding
+                outputs.append(y)
+
+        outputs = torch.stack(outputs, 1)
+
+        return self.softmax(outputs)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sar_decoder_with_bs.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sar_decoder_with_bs.py
new file mode 100755
index 0000000000000000000000000000000000000000..495b72fb1881f340b7cca7c70571bd669fd6a81b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sar_decoder_with_bs.py
@@ -0,0 +1,162 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from queue import PriorityQueue
+
+import torch
+import torch.nn.functional as F
+
+import mmocr.utils as utils
+from mmocr.registry import MODELS
+from . import ParallelSARDecoder
+
+
+class DecodeNode:
+    """Node class to save decoded char indices and scores.
+
+    Args:
+        indexes (list[int]): Char indices that decoded yes.
+        scores (list[float]): Char scores that decoded yes.
+    """
+
+    def __init__(self, indexes=[1], scores=[0.9]):
+        assert utils.is_type_list(indexes, int)
+        assert utils.is_type_list(scores, float)
+        assert utils.equal_len(indexes, scores)
+
+        self.indexes = indexes
+        self.scores = scores
+
+    def eval(self):
+        """Calculate accumulated score."""
+        accu_score = sum(self.scores)
+        return accu_score
+
+
+@MODELS.register_module()
+class ParallelSARDecoderWithBS(ParallelSARDecoder):
+    """Parallel Decoder module with beam-search in SAR.
+
+    Args:
+        beam_width (int): Width for beam search.
+    """
+
+    def __init__(self,
+                 beam_width=5,
+                 num_classes=37,
+                 enc_bi_rnn=False,
+                 dec_bi_rnn=False,
+                 dec_do_rnn=0,
+                 dec_gru=False,
+                 d_model=512,
+                 d_enc=512,
+                 d_k=64,
+                 pred_dropout=0.0,
+                 max_seq_len=40,
+                 mask=True,
+                 start_idx=0,
+                 padding_idx=0,
+                 pred_concat=False,
+                 init_cfg=None,
+                 **kwargs):
+        super().__init__(
+            num_classes,
+            enc_bi_rnn,
+            dec_bi_rnn,
+            dec_do_rnn,
+            dec_gru,
+            d_model,
+            d_enc,
+            d_k,
+            pred_dropout,
+            max_seq_len,
+            mask,
+            start_idx,
+            padding_idx,
+            pred_concat,
+            init_cfg=init_cfg)
+        assert isinstance(beam_width, int)
+        assert beam_width > 0
+
+        self.beam_width = beam_width
+
+    def forward_test(self, feat, out_enc, img_metas):
+        assert utils.is_type_list(img_metas, dict)
+        assert len(img_metas) == feat.size(0)
+
+        valid_ratios = [
+            img_meta.get('valid_ratio', 1.0) for img_meta in img_metas
+        ] if self.mask else None
+
+        seq_len = self.max_seq_len
+        bsz = feat.size(0)
+        assert bsz == 1, 'batch size must be 1 for beam search.'
+
+        start_token = torch.full((bsz, ),
+                                 self.start_idx,
+                                 device=feat.device,
+                                 dtype=torch.long)
+        # bsz
+        start_token = self.embedding(start_token)
+        # bsz * emb_dim
+        start_token = start_token.unsqueeze(1).expand(-1, seq_len, -1)
+        # bsz * seq_len * emb_dim
+        out_enc = out_enc.unsqueeze(1)
+        # bsz * 1 * emb_dim
+        decoder_input = torch.cat((out_enc, start_token), dim=1)
+        # bsz * (seq_len + 1) * emb_dim
+
+        # Initialize beam-search queue
+        q = PriorityQueue()
+        init_node = DecodeNode([self.start_idx], [0.0])
+        q.put((-init_node.eval(), init_node))
+
+        for i in range(1, seq_len + 1):
+            next_nodes = []
+            beam_width = self.beam_width if i > 1 else 1
+            for _ in range(beam_width):
+                _, node = q.get()
+
+                input_seq = torch.clone(decoder_input)  # bsz * T * emb_dim
+                # fill previous input tokens (step 1...i) in input_seq
+                for t, index in enumerate(node.indexes):
+                    input_token = torch.full((bsz, ),
+                                             index,
+                                             device=input_seq.device,
+                                             dtype=torch.long)
+                    input_token = self.embedding(input_token)  # bsz * emb_dim
+                    input_seq[:, t + 1, :] = input_token
+
+                output_seq = self._2d_attention(
+                    input_seq, feat, out_enc, valid_ratios=valid_ratios)
+
+                output_char = output_seq[:, i, :]  # bsz * num_classes
+                output_char = F.softmax(output_char, -1)
+                topk_value, topk_idx = output_char.topk(self.beam_width, dim=1)
+                topk_value, topk_idx = topk_value.squeeze(0), topk_idx.squeeze(
+                    0)
+
+                for k in range(self.beam_width):
+                    kth_score = topk_value[k].item()
+                    kth_idx = topk_idx[k].item()
+                    next_node = DecodeNode(node.indexes + [kth_idx],
+                                           node.scores + [kth_score])
+                    delta = k * 1e-6
+                    next_nodes.append(
+                        (-node.eval() - kth_score - delta, next_node))
+                    # Use minus since priority queue sort
+                    # with ascending order
+
+            while not q.empty():
+                q.get()
+
+            # Put all candidates to queue
+            for next_node in next_nodes:
+                q.put(next_node)
+
+        best_node = q.get()
+        num_classes = self.num_classes - 1  # ignore padding index
+        outputs = torch.zeros(bsz, seq_len, num_classes)
+        for i in range(seq_len):
+            idx = best_node[1].indexes[i + 1]
+            outputs[0, i, idx] = best_node[1].scores[i + 1]
+
+        return outputs
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sequence_attention_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sequence_attention_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..dfbf293f730e7c729511afa6ea24d494b86fe1b2
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/sequence_attention_decoder.py
@@ -0,0 +1,260 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.layers import DotProductAttentionLayer
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class SequenceAttentionDecoder(BaseDecoder):
+    """Sequence attention decoder for RobustScanner.
+
+    RobustScanner: `RobustScanner: Dynamically Enhancing Positional Clues for
+    Robust Text Recognition <https://arxiv.org/abs/2007.07542>`_
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        rnn_layers (int): Number of RNN layers. Defaults to 2.
+        dim_input (int): Dimension :math:`D_i` of input vector ``feat``.
+            Defaults to 512.
+        dim_model (int): Dimension :math:`D_m` of the model. Should also be the
+            same as encoder output vector ``out_enc``. Defaults to 128.
+        max_seq_len (int): Maximum output sequence length :math:`T`.
+            Defaults to 40.
+        mask (bool): Whether to mask input features according to
+            ``data_sample.valid_ratio``. Defaults to True.
+        dropout (float): Dropout rate for LSTM layer. Defaults to 0.
+        return_feature (bool): Return feature or logic as the result.
+            Defaults to True.
+        encode_value (bool): Whether to use the output of encoder ``out_enc``
+            as `value` of attention layer. If False, the original feature
+            ``feat`` will be used. Defaults to False.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dictionary, Dict],
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 rnn_layers: int = 2,
+                 dim_input: int = 512,
+                 dim_model: int = 128,
+                 max_seq_len: int = 40,
+                 mask: bool = True,
+                 dropout: int = 0,
+                 return_feature: bool = True,
+                 encode_value: bool = False,
+                 init_cfg: Optional[Union[Dict,
+                                          Sequence[Dict]]] = None) -> None:
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        self.dim_input = dim_input
+        self.dim_model = dim_model
+        self.return_feature = return_feature
+        self.encode_value = encode_value
+        self.mask = mask
+
+        self.embedding = nn.Embedding(
+            self.dictionary.num_classes,
+            self.dim_model,
+            padding_idx=self.dictionary.padding_idx)
+
+        self.sequence_layer = nn.LSTM(
+            input_size=dim_model,
+            hidden_size=dim_model,
+            num_layers=rnn_layers,
+            batch_first=True,
+            dropout=dropout)
+
+        self.attention_layer = DotProductAttentionLayer()
+
+        self.prediction = None
+        if not self.return_feature:
+            self.prediction = nn.Linear(
+                dim_model if encode_value else dim_input,
+                self.dictionary.num_classes)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def forward_train(
+        self,
+        feat: torch.Tensor,
+        out_enc: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            targets_dict (dict): A dict with the key ``padded_targets``, a
+                tensor of shape :math:`(N, T)`. Each element is the index of a
+                character.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: A raw logit tensor of shape :math:`(N, T, C)` if
+            ``return_feature=False``. Otherwise it would be the hidden feature
+            before the prediction projection layer, whose shape is
+            :math:`(N, T, D_m)`.
+        """
+
+        valid_ratios = [
+            data_sample.get('valid_ratio', 1.0) for data_sample in data_samples
+        ] if self.mask else None
+
+        padded_targets = [
+            data_sample.gt_text.padded_indexes for data_sample in data_samples
+        ]
+        padded_targets = torch.stack(padded_targets, dim=0).to(feat.device)
+        tgt_embedding = self.embedding(padded_targets)
+
+        n, c_enc, h, w = out_enc.size()
+        assert c_enc == self.dim_model
+        _, c_feat, _, _ = feat.size()
+        assert c_feat == self.dim_input
+        _, len_q, c_q = tgt_embedding.size()
+        assert c_q == self.dim_model
+        assert len_q <= self.max_seq_len
+
+        query, _ = self.sequence_layer(tgt_embedding)
+        query = query.permute(0, 2, 1).contiguous()
+        key = out_enc.view(n, c_enc, h * w)
+        if self.encode_value:
+            value = key
+        else:
+            value = feat.view(n, c_feat, h * w)
+
+        mask = None
+        if valid_ratios is not None:
+            mask = query.new_zeros((n, h, w))
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(w, math.ceil(w * valid_ratio))
+                mask[i, :, valid_width:] = 1
+            mask = mask.bool()
+            mask = mask.view(n, h * w)
+
+        attn_out = self.attention_layer(query, key, value, mask)
+        attn_out = attn_out.permute(0, 2, 1).contiguous()
+
+        if self.return_feature:
+            return attn_out
+
+        out = self.prediction(attn_out)
+
+        return out
+
+    def forward_test(self, feat: torch.Tensor, out_enc: torch.Tensor,
+                     data_samples: Optional[Sequence[TextRecogDataSample]]
+                     ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        seq_len = self.max_seq_len
+        batch_size = feat.size(0)
+
+        decode_sequence = (feat.new_ones(
+            (batch_size, seq_len)) * self.dictionary.start_idx).long()
+        assert not self.return_feature
+        outputs = []
+        for i in range(seq_len):
+            step_out = self.forward_test_step(feat, out_enc, decode_sequence,
+                                              i, data_samples)
+            outputs.append(step_out)
+            _, max_idx = torch.max(step_out, dim=1, keepdim=False)
+            if i < seq_len - 1:
+                decode_sequence[:, i + 1] = max_idx
+
+        outputs = torch.stack(outputs, 1)
+
+        return self.softmax(outputs)
+
+    def forward_test_step(self, feat: torch.Tensor, out_enc: torch.Tensor,
+                          decode_sequence: torch.Tensor, current_step: int,
+                          data_samples: Sequence[TextRecogDataSample]
+                          ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            out_enc (Tensor): Encoder output of shape
+                :math:`(N, D_m, H, W)`.
+            decode_sequence (Tensor): Shape :math:`(N, T)`. The tensor that
+                stores history decoding result.
+            current_step (int): Current decoding step.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: Shape :math:`(N, C)`. The logit tensor of predicted
+            tokens at current time step.
+        """
+        valid_ratios = [
+            img_meta.get('valid_ratio', 1.0) for img_meta in data_samples
+        ] if self.mask else None
+
+        embed = self.embedding(decode_sequence)
+
+        n, c_enc, h, w = out_enc.size()
+        assert c_enc == self.dim_model
+        _, c_feat, _, _ = feat.size()
+        assert c_feat == self.dim_input
+        _, _, c_q = embed.size()
+        assert c_q == self.dim_model
+
+        query, _ = self.sequence_layer(embed)
+        query = query.permute(0, 2, 1).contiguous()
+        key = out_enc.view(n, c_enc, h * w)
+        if self.encode_value:
+            value = key
+        else:
+            value = feat.view(n, c_feat, h * w)
+
+        mask = None
+        if valid_ratios is not None:
+            mask = query.new_zeros((n, h, w))
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(w, math.ceil(w * valid_ratio))
+                mask[i, :, valid_width:] = 1
+            mask = mask.bool()
+            mask = mask.view(n, h * w)
+
+        # [n, c, l]
+        attn_out = self.attention_layer(query, key, value, mask)
+
+        out = attn_out[:, :, current_step]
+
+        if not self.return_feature:
+            out = self.prediction(out)
+
+        return out
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/decoders/svtr_decoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/svtr_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..122a51dc09b6c55d25ad80f3c763135317c6aca3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/decoders/svtr_decoder.py
@@ -0,0 +1,96 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseDecoder
+
+
+@MODELS.register_module()
+class SVTRDecoder(BaseDecoder):
+    """Decoder module in `SVTR <https://arxiv.org/abs/2205.00159>`_.
+
+    Args:
+        in_channels (int): The num of input channels.
+        dictionary (Union[Dict, Dictionary]): The config for `Dictionary` or
+            the instance of `Dictionary`. Defaults to None.
+        module_loss (Optional[Dict], optional): Cfg to build module_loss.
+            Defaults to None.
+        postprocessor (Optional[Dict], optional): Cfg to build postprocessor.
+            Defaults to None.
+        max_seq_len (int, optional): Maximum output sequence length :math:`T`.
+            Defaults to 25.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 dictionary: Union[Dict, Dictionary] = None,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 max_seq_len: int = 25,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len,
+            init_cfg=init_cfg)
+
+        self.decoder = nn.Linear(
+            in_features=in_channels, out_features=self.dictionary.num_classes)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def forward_train(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for training.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output from encoder of
+                shape :math:`(N, 1, H, W)`. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, T, C)` where
+            :math:`C` is ``num_classes``.
+        """
+        assert out_enc.size(2) == 1, 'feature height must be 1'
+        x = out_enc.squeeze(2)
+        x = x.permute(0, 2, 1)
+        predicts = self.decoder(x)
+        return predicts
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for testing.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output from encoder of
+                shape :math:`(N, 1, H, W)`. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        return self.softmax(self.forward_train(feat, out_enc, data_samples))
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..ceef10116baf4bf1bec14613af0bfbd1f28e86d0
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/__init__.py
@@ -0,0 +1,14 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .abi_encoder import ABIEncoder
+from .aster_encoder import ASTEREncoder
+from .base import BaseEncoder
+from .channel_reduction_encoder import ChannelReductionEncoder
+from .nrtr_encoder import NRTREncoder
+from .sar_encoder import SAREncoder
+from .satrn_encoder import SATRNEncoder
+from .svtr_encoder import SVTREncoder
+
+__all__ = [
+    'SAREncoder', 'NRTREncoder', 'BaseEncoder', 'ChannelReductionEncoder',
+    'SATRNEncoder', 'ABIEncoder', 'SVTREncoder', 'ASTEREncoder'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/abi_encoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/abi_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..a5f6a85c71bfe84c09fdc3d6d2eb560804f7564e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/abi_encoder.py
@@ -0,0 +1,83 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+from typing import Dict, List, Optional, Union
+
+import torch
+from mmcv.cnn.bricks.transformer import BaseTransformerLayer
+from mmengine.model import BaseModule, ModuleList
+
+from mmocr.models.common.modules import PositionalEncoding
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+
+
+@MODELS.register_module()
+class ABIEncoder(BaseModule):
+    """Implement transformer encoder for text recognition, modified from
+    `<https://github.com/FangShancheng/ABINet>`.
+
+    Args:
+        n_layers (int): Number of attention layers. Defaults to 2.
+        n_head (int): Number of parallel attention heads. Defaults to 8.
+        d_model (int): Dimension :math:`D_m` of the input from previous model.
+            Defaults to 512.
+        d_inner (int): Hidden dimension of feedforward layers. Defaults to
+            2048.
+        dropout (float): Dropout rate. Defaults to 0.1.
+        max_len (int): Maximum output sequence length :math:`T`. Defaults to
+            8 * 32.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 n_layers: int = 2,
+                 n_head: int = 8,
+                 d_model: int = 512,
+                 d_inner: int = 2048,
+                 dropout: float = 0.1,
+                 max_len: int = 8 * 32,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+        super().__init__(init_cfg=init_cfg)
+
+        assert d_model % n_head == 0, 'd_model must be divisible by n_head'
+
+        self.pos_encoder = PositionalEncoding(d_model, n_position=max_len)
+        encoder_layer = BaseTransformerLayer(
+            operation_order=('self_attn', 'norm', 'ffn', 'norm'),
+            attn_cfgs=dict(
+                type='MultiheadAttention',
+                embed_dims=d_model,
+                num_heads=n_head,
+                attn_drop=dropout,
+                dropout_layer=dict(type='Dropout', drop_prob=dropout),
+            ),
+            ffn_cfgs=dict(
+                type='FFN',
+                embed_dims=d_model,
+                feedforward_channels=d_inner,
+                ffn_drop=dropout,
+            ),
+            norm_cfg=dict(type='LN'),
+        )
+        self.transformer = ModuleList(
+            [copy.deepcopy(encoder_layer) for _ in range(n_layers)])
+
+    def forward(self, feature: torch.Tensor,
+                data_samples: List[TextRecogDataSample]) -> torch.Tensor:
+        """
+        Args:
+            feature (Tensor): Feature tensor of shape :math:`(N, D_m, H, W)`.
+            data_samples (List[TextRecogDataSample]): List of data samples.
+
+        Returns:
+            Tensor: Features of shape :math:`(N, D_m, H, W)`.
+        """
+        n, c, h, w = feature.shape
+        feature = feature.view(n, c, -1).transpose(1, 2)  # (n, h*w, c)
+        feature = self.pos_encoder(feature)  # (n, h*w, c)
+        feature = feature.transpose(0, 1)  # (h*w, n, c)
+        for m in self.transformer:
+            feature = m(feature)
+        feature = feature.permute(1, 2, 0).view(n, c, h, w)
+        return feature
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/aster_encoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/aster_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..521218153701c510478b1e4ac3912c89f8eecfd4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/aster_encoder.py
@@ -0,0 +1,43 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+from .base import BaseEncoder
+
+
+@MODELS.register_module()
+class ASTEREncoder(BaseEncoder):
+    """Implement BiLSTM encoder module in `ASTER: An Attentional Scene Text
+    Recognizer with Flexible Rectification.
+
+    <https://ieeexplore.ieee.org/abstract/document/8395027/`
+    Args:
+        in_channels (int): Number of input channels.
+        num_layers (int): Layers of BiLSTM. Defaults to 2.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 num_layers: int = 2,
+                 init_cfg=dict(type='Xavier', layer='Conv2d')) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.bilstm = nn.LSTM(
+            in_channels,
+            in_channels // 2,
+            num_layers=num_layers,
+            bidirectional=True,
+            batch_first=True)
+
+    def forward(self, feat: torch.Tensor, img_metas=None) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Feature of shape (N, C, 1, W).
+        Returns:
+            Tensor: Output of BiLSTM.
+        """
+        assert feat.dim() == 4
+        assert feat.size(2) == 1, 'height must be 1'
+        feat = feat.squeeze(2).permute(0, 2, 1)
+        feat, _ = self.bilstm(feat)
+        return feat.contiguous()
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/base.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..26edafb79869c840ec9362faef7a871759d15d3b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/base.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmengine.model import BaseModule
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class BaseEncoder(BaseModule):
+    """Base Encoder class for text recognition."""
+
+    def forward(self, feat, **kwargs):
+        return feat
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/channel_reduction_encoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/channel_reduction_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..49b40bf27406c0c1d1b46d4f7232bdeca50776f7
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/channel_reduction_encoder.py
@@ -0,0 +1,50 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Sequence
+
+import torch
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseEncoder
+
+
+@MODELS.register_module()
+class ChannelReductionEncoder(BaseEncoder):
+    """Change the channel number with a one by one convoluational layer.
+
+    Args:
+        in_channels (int): Number of input channels.
+        out_channels (int): Number of output channels.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to dict(type='Xavier', layer='Conv2d').
+    """
+
+    def __init__(
+        self,
+        in_channels: int,
+        out_channels: int,
+        init_cfg: Dict = dict(type='Xavier', layer='Conv2d')
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+
+        self.layer = nn.Conv2d(
+            in_channels, out_channels, kernel_size=1, stride=1, padding=0)
+
+    def forward(
+        self,
+        feat: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Image features with the shape of
+                :math:`(N, C_{in}, H, W)`.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing valid_ratio information.
+                Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, C_{out}, H, W)`.
+        """
+        return self.layer(feat)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/nrtr_encoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/nrtr_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..e7d80778990dce9bd8f22eff9a32b6fc5b64fb5d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/nrtr_encoder.py
@@ -0,0 +1,108 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from mmengine.model import ModuleList
+
+from mmocr.models.common import TFEncoderLayer
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseEncoder
+
+
+@MODELS.register_module()
+class NRTREncoder(BaseEncoder):
+    """Transformer Encoder block with self attention mechanism.
+
+    Args:
+        n_layers (int): The number of sub-encoder-layers in the encoder.
+            Defaults to 6.
+        n_head (int): The number of heads in the multiheadattention models
+            Defaults to 8.
+        d_k (int): Total number of features in key. Defaults to 64.
+        d_v (int): Total number of features in value. Defaults to 64.
+        d_model (int): The number of expected features in the decoder inputs.
+            Defaults to 512.
+        d_inner (int): The dimension of the feedforward network model.
+            Defaults to 256.
+        dropout (float): Dropout rate for MHSA and FFN. Defaults to 0.1.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+    """
+
+    def __init__(self,
+                 n_layers: int = 6,
+                 n_head: int = 8,
+                 d_k: int = 64,
+                 d_v: int = 64,
+                 d_model: int = 512,
+                 d_inner: int = 256,
+                 dropout: float = 0.1,
+                 init_cfg: Optional[Union[Dict,
+                                          Sequence[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.d_model = d_model
+        self.layer_stack = ModuleList([
+            TFEncoderLayer(
+                d_model, d_inner, n_head, d_k, d_v, dropout=dropout)
+            for _ in range(n_layers)
+        ])
+        self.layer_norm = nn.LayerNorm(d_model)
+
+    def _get_source_mask(self, src_seq: torch.Tensor,
+                         valid_ratios: Sequence[float]) -> torch.Tensor:
+        """Generate mask for source sequence.
+
+        Args:
+            src_seq (torch.Tensor): Image sequence. Shape :math:`(N, T, C)`.
+            valid_ratios (list[float]): The valid ratio of input image. For
+                example, if the width of the original image is w1 and the width
+                after pad is w2, then valid_ratio = w1/w2. source mask is used
+                to cover the area of the pad region.
+
+        Returns:
+            Tensor or None: Source mask. Shape :math:`(N, T)`. The region of
+            pad area are False, and the rest are True.
+        """
+
+        N, T, _ = src_seq.size()
+        mask = None
+        if len(valid_ratios) > 0:
+            mask = src_seq.new_zeros((N, T), device=src_seq.device)
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_width = min(T, math.ceil(T * valid_ratio))
+                mask[i, :valid_width] = 1
+
+        return mask
+
+    def forward(self,
+                feat: torch.Tensor,
+                data_samples: Sequence[TextRecogDataSample] = None
+                ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Backbone output of shape :math:`(N, C, H, W)`.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing valid_ratio information.
+                Defaults to None.
+
+
+        Returns:
+            Tensor: The encoder output tensor. Shape :math:`(N, T, C)`.
+        """
+        n, c, h, w = feat.size()
+
+        feat = feat.view(n, c, h * w).permute(0, 2, 1).contiguous()
+
+        valid_ratios = []
+        for data_sample in data_samples:
+            valid_ratios.append(data_sample.get('valid_ratio'))
+        mask = self._get_source_mask(feat, valid_ratios)
+
+        output = feat
+        for enc_layer in self.layer_stack:
+            output = enc_layer(output, mask)
+        output = self.layer_norm(output)
+
+        return output
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/sar_encoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/sar_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..33d8c1ef8f5b8f57c5762d4449bc8baf06f8a380
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/sar_encoder.py
@@ -0,0 +1,124 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseEncoder
+
+
+@MODELS.register_module()
+class SAREncoder(BaseEncoder):
+    """Implementation of encoder module in `SAR.
+
+    <https://arxiv.org/abs/1811.00751>`_.
+
+    Args:
+        enc_bi_rnn (bool): If True, use bidirectional RNN in encoder.
+            Defaults to False.
+        rnn_dropout (float): Dropout probability of RNN layer in encoder.
+            Defaults to 0.0.
+        enc_gru (bool): If True, use GRU, else LSTM in encoder. Defaults
+            to False.
+        d_model (int): Dim :math:`D_i` of channels from backbone. Defaults
+            to 512.
+        d_enc (int): Dim :math:`D_m` of encoder RNN layer. Defaults to 512.
+        mask (bool): If True, mask padding in RNN sequence. Defaults to
+            True.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to [dict(type='Xavier', layer='Conv2d'),
+            dict(type='Uniform', layer='BatchNorm2d')].
+    """
+
+    def __init__(self,
+                 enc_bi_rnn: bool = False,
+                 rnn_dropout: Union[int, float] = 0.0,
+                 enc_gru: bool = False,
+                 d_model: int = 512,
+                 d_enc: int = 512,
+                 mask: bool = True,
+                 init_cfg: Sequence[Dict] = [
+                     dict(type='Xavier', layer='Conv2d'),
+                     dict(type='Uniform', layer='BatchNorm2d')
+                 ],
+                 **kwargs) -> None:
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(enc_bi_rnn, bool)
+        assert isinstance(rnn_dropout, (int, float))
+        assert 0 <= rnn_dropout < 1.0
+        assert isinstance(enc_gru, bool)
+        assert isinstance(d_model, int)
+        assert isinstance(d_enc, int)
+        assert isinstance(mask, bool)
+
+        self.enc_bi_rnn = enc_bi_rnn
+        self.rnn_dropout = rnn_dropout
+        self.mask = mask
+
+        # LSTM Encoder
+        kwargs = dict(
+            input_size=d_model,
+            hidden_size=d_enc,
+            num_layers=2,
+            batch_first=True,
+            dropout=rnn_dropout,
+            bidirectional=enc_bi_rnn)
+        if enc_gru:
+            self.rnn_encoder = nn.GRU(**kwargs)
+        else:
+            self.rnn_encoder = nn.LSTM(**kwargs)
+
+        # global feature transformation
+        encoder_rnn_out_size = d_enc * (int(enc_bi_rnn) + 1)
+        self.linear = nn.Linear(encoder_rnn_out_size, encoder_rnn_out_size)
+
+    def forward(
+        self,
+        feat: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Tensor of shape :math:`(N, D_i, H, W)`.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing valid_ratio information.
+                Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, D_m)`.
+        """
+        if data_samples is not None:
+            assert len(data_samples) == feat.size(0)
+
+        valid_ratios = None
+        if data_samples is not None:
+            valid_ratios = [
+                data_sample.get('valid_ratio', 1.0)
+                for data_sample in data_samples
+            ] if self.mask else None
+
+        h_feat = feat.size(2)
+        feat_v = F.max_pool2d(
+            feat, kernel_size=(h_feat, 1), stride=1, padding=0)
+        feat_v = feat_v.squeeze(2)  # bsz * C * W
+        feat_v = feat_v.permute(0, 2, 1).contiguous()  # bsz * W * C
+
+        holistic_feat = self.rnn_encoder(feat_v)[0]  # bsz * T * C
+
+        if valid_ratios is not None:
+            valid_hf = []
+            T = holistic_feat.size(1)
+            for i, valid_ratio in enumerate(valid_ratios):
+                valid_step = min(T, math.ceil(T * valid_ratio)) - 1
+                valid_hf.append(holistic_feat[i, valid_step, :])
+            valid_hf = torch.stack(valid_hf, dim=0)
+        else:
+            valid_hf = holistic_feat[:, -1, :]  # bsz * C
+
+        holistic_feat = self.linear(valid_hf)  # bsz * C
+
+        return holistic_feat
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/satrn_encoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/satrn_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..ec6613535f99ca233196adbeb9fec5cdfe2531c6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/satrn_encoder.py
@@ -0,0 +1,95 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, List, Optional, Union
+
+import torch.nn as nn
+from mmengine.model import ModuleList
+from torch import Tensor
+
+from mmocr.models.textrecog.layers import (Adaptive2DPositionalEncoding,
+                                           SATRNEncoderLayer)
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseEncoder
+
+
+@MODELS.register_module()
+class SATRNEncoder(BaseEncoder):
+    """Implement encoder for SATRN, see `SATRN.
+
+    <https://arxiv.org/abs/1910.04396>`_.
+
+    Args:
+        n_layers (int): Number of attention layers. Defaults to 12.
+        n_head (int): Number of parallel attention heads. Defaults to 8.
+        d_k (int): Dimension of the key vector. Defaults to 64.
+        d_v (int): Dimension of the value vector. Defaults to 64.
+        d_model (int): Dimension :math:`D_m` of the input from previous model.
+            Defaults to 512.
+        n_position (int): Length of the positional encoding vector. Must be
+            greater than ``max_seq_len``. Defaults to 100.
+        d_inner (int): Hidden dimension of feedforward layers. Defaults to 256.
+        dropout (float): Dropout rate. Defaults to 0.1.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 n_layers: int = 12,
+                 n_head: int = 8,
+                 d_k: int = 64,
+                 d_v: int = 64,
+                 d_model: int = 512,
+                 n_position: int = 100,
+                 d_inner: int = 256,
+                 dropout: float = 0.1,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.d_model = d_model
+        self.position_enc = Adaptive2DPositionalEncoding(
+            d_hid=d_model,
+            n_height=n_position,
+            n_width=n_position,
+            dropout=dropout)
+        self.layer_stack = ModuleList([
+            SATRNEncoderLayer(
+                d_model, d_inner, n_head, d_k, d_v, dropout=dropout)
+            for _ in range(n_layers)
+        ])
+        self.layer_norm = nn.LayerNorm(d_model)
+
+    def forward(self,
+                feat: Tensor,
+                data_samples: List[TextRecogDataSample] = None) -> Tensor:
+        """Forward propagation of encoder.
+
+        Args:
+            feat (Tensor): Feature tensor of shape :math:`(N, D_m, H, W)`.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing `valid_ratio` information.
+                Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, T, D_m)`.
+        """
+        valid_ratios = [1.0 for _ in range(feat.size(0))]
+        if data_samples is not None:
+            valid_ratios = [
+                data_sample.get('valid_ratio', 1.0)
+                for data_sample in data_samples
+            ]
+        feat = self.position_enc(feat)
+        n, c, h, w = feat.size()
+        mask = feat.new_zeros((n, h, w))
+        for i, valid_ratio in enumerate(valid_ratios):
+            valid_width = min(w, math.ceil(w * valid_ratio))
+            mask[i, :, :valid_width] = 1
+        mask = mask.view(n, h * w)
+        feat = feat.view(n, c, h * w)
+
+        output = feat.permute(0, 2, 1).contiguous()
+        for enc_layer in self.layer_stack:
+            output = enc_layer(output, h, w, mask)
+        output = self.layer_norm(output)
+
+        return output
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/encoders/svtr_encoder.py b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/svtr_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..aa27f42209c80fca9fdd58e1fae4566cbea9cc76
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/encoders/svtr_encoder.py
@@ -0,0 +1,639 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Tuple, Union
+
+import numpy as np
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from mmcv.cnn import ConvModule
+from mmcv.cnn.bricks import DropPath
+from mmengine.model import BaseModule
+from mmengine.model.weight_init import trunc_normal_init
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+
+
+class OverlapPatchEmbed(BaseModule):
+    """Image to the progressive overlapping Patch Embedding.
+
+    Args:
+        in_channels (int): Number of input channels. Defaults to 3.
+        embed_dims (int): The dimensions of embedding. Defaults to 768.
+        num_layers (int, optional): Number of Conv_BN_Layer. Defaults to 2 and
+            limit to [2, 3].
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_channels: int = 3,
+                 embed_dims: int = 768,
+                 num_layers: int = 2,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+
+        super().__init__(init_cfg=init_cfg)
+
+        assert num_layers in [2, 3], \
+            'The number of layers must belong to [2, 3]'
+        self.net = nn.Sequential()
+        for num in range(num_layers, 0, -1):
+            if (num == num_layers):
+                _input = in_channels
+            _output = embed_dims // (2**(num - 1))
+            self.net.add_module(
+                f'ConvModule{str(num_layers - num)}',
+                ConvModule(
+                    in_channels=_input,
+                    out_channels=_output,
+                    kernel_size=3,
+                    stride=2,
+                    padding=1,
+                    norm_cfg=dict(type='BN'),
+                    act_cfg=dict(type='GELU')))
+            _input = _output
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (Tensor): A Tensor of shape :math:`(N, C, H, W)`.
+
+        Returns:
+            Tensor: A tensor of shape math:`(N, HW//16, C)`.
+        """
+        x = self.net(x).flatten(2).permute(0, 2, 1)
+        return x
+
+
+class ConvMixer(BaseModule):
+    """The conv Mixer.
+
+    Args:
+        embed_dims (int): Number of character components.
+        num_heads (int, optional): Number of heads. Defaults to 8.
+        input_shape (Tuple[int, int], optional): The shape of input [H, W].
+            Defaults to [8, 25].
+        local_k (Tuple[int, int], optional): Window size. Defaults to [3, 3].
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 embed_dims: int,
+                 num_heads: int = 8,
+                 input_shape: Tuple[int, int] = [8, 25],
+                 local_k: Tuple[int, int] = [3, 3],
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+        super().__init__(init_cfg)
+        self.input_shape = input_shape
+        self.embed_dims = embed_dims
+        self.local_mixer = nn.Conv2d(
+            in_channels=embed_dims,
+            out_channels=embed_dims,
+            kernel_size=local_k,
+            stride=1,
+            padding=(local_k[0] // 2, local_k[1] // 2),
+            groups=num_heads)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (torch.Tensor): A Tensor of shape :math:`(N, HW, C)`.
+
+        Returns:
+            torch.Tensor: Tensor: A tensor of shape math:`(N, HW, C)`.
+        """
+        h, w = self.input_shape
+        x = x.permute(0, 2, 1).reshape([-1, self.embed_dims, h, w])
+        x = self.local_mixer(x)
+        x = x.flatten(2).permute(0, 2, 1)
+        return x
+
+
+class AttnMixer(BaseModule):
+    """One of mixer of {'Global', 'Local'}. Defaults to Global Mixer.
+
+    Args:
+        embed_dims (int): Number of character components.
+        num_heads (int, optional): Number of heads. Defaults to 8.
+        mixer (str, optional): The mixer type, choices are 'Global' and
+            'Local'. Defaults to 'Global'.
+        input_shape (Tuple[int, int], optional): The shape of input [H, W].
+            Defaults to [8, 25].
+        local_k (Tuple[int, int], optional): Window size. Defaults to [7, 11].
+        qkv_bias (bool, optional): Whether a additive bias is required.
+            Defaults to False.
+        qk_scale (float, optional): A scaling factor. Defaults to None.
+        attn_drop (float, optional): Attn dropout probability. Defaults to 0.0.
+        proj_drop (float, optional): Proj dropout layer. Defaults to 0.0.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 embed_dims: int,
+                 num_heads: int = 8,
+                 mixer: str = 'Global',
+                 input_shape: Tuple[int, int] = [8, 25],
+                 local_k: Tuple[int, int] = [7, 11],
+                 qkv_bias: bool = False,
+                 qk_scale: float = None,
+                 attn_drop: float = 0.,
+                 proj_drop: float = 0.,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+        super().__init__(init_cfg)
+        assert mixer in {'Global', 'Local'}, \
+            "The type of mixer must belong to {'Global', 'Local'}"
+        self.num_heads = num_heads
+        head_dim = embed_dims // num_heads
+        self.scale = qk_scale or head_dim**-0.5
+        self.qkv = nn.Linear(embed_dims, embed_dims * 3, bias=qkv_bias)
+        self.attn_drop = nn.Dropout(attn_drop)
+        self.proj = nn.Linear(embed_dims, embed_dims)
+        self.proj_drop = nn.Dropout(proj_drop)
+        self.input_shape = input_shape
+        if input_shape is not None:
+            height, width = input_shape
+            self.input_size = height * width
+            self.embed_dims = embed_dims
+        if mixer == 'Local' and input_shape is not None:
+            hk = local_k[0]
+            wk = local_k[1]
+            mask = torch.ones(
+                [height * width, height + hk - 1, width + wk - 1],
+                dtype=torch.float32)
+            for h in range(0, height):
+                for w in range(0, width):
+                    mask[h * width + w, h:h + hk, w:w + wk] = 0.
+            mask = mask[:, hk // 2:height + hk // 2,
+                        wk // 2:width + wk // 2].flatten(1)
+            mask[mask >= 1] = -np.inf
+            self.register_buffer('mask', mask[None, None, :, :])
+        self.mixer = mixer
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (torch.Tensor): A Tensor of shape :math:`(N, H, W, C)`.
+
+        Returns:
+            torch.Tensor: A Tensor of shape :math:`(N, H, W, C)`.
+        """
+        if self.input_shape is not None:
+            input_size, embed_dims = self.input_size, self.embed_dims
+        else:
+            _, input_size, embed_dims = x.shape
+        qkv = self.qkv(x).reshape((-1, input_size, 3, self.num_heads,
+                                   embed_dims // self.num_heads)).permute(
+                                       (2, 0, 3, 1, 4))
+        q, k, v = qkv[0] * self.scale, qkv[1], qkv[2]
+        attn = q.matmul(k.permute(0, 1, 3, 2))
+        if self.mixer == 'Local':
+            attn += self.mask
+        attn = F.softmax(attn, dim=-1)
+        attn = self.attn_drop(attn)
+
+        x = attn.matmul(v).permute(0, 2, 1, 3).reshape(-1, input_size,
+                                                       embed_dims)
+        x = self.proj(x)
+        x = self.proj_drop(x)
+        return x
+
+
+class MLP(BaseModule):
+    """The MLP block.
+
+    Args:
+        in_features (int): The input features.
+        hidden_features (int, optional): The hidden features.
+            Defaults to None.
+        out_features (int, optional): The output features.
+            Defaults to None.
+        drop (float, optional): cfg of dropout function. Defaults to 0.0.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_features: int,
+                 hidden_features: int = None,
+                 out_features: int = None,
+                 drop: float = 0.,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+        super().__init__(init_cfg)
+        hidden_features = hidden_features or in_features
+        out_features = out_features or in_features
+        self.fc1 = nn.Linear(in_features, hidden_features)
+        self.act = nn.GELU()
+        self.fc2 = nn.Linear(hidden_features, out_features)
+        self.drop = nn.Dropout(drop)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (torch.Tensor): A Tensor of shape :math:`(N, H, W, C)`.
+
+        Returns:
+            torch.Tensor: A Tensor of shape :math:`(N, H, W, C)`.
+        """
+        x = self.fc1(x)
+        x = self.act(x)
+        x = self.drop(x)
+        x = self.fc2(x)
+        x = self.drop(x)
+        return x
+
+
+class MixingBlock(BaseModule):
+    """The Mixing block.
+
+    Args:
+        embed_dims (int): Number of character components.
+        num_heads (int): Number of heads
+        mixer (str, optional): The mixer type. Defaults to 'Global'.
+        window_size (Tuple[int ,int], optional): Local window size.
+            Defaults to [7, 11].
+        input_shape (Tuple[int, int], optional): The shape of input [H, W].
+            Defaults to [8, 25].
+        mlp_ratio (float, optional): The ratio of hidden features to input.
+            Defaults to 4.0.
+        qkv_bias (bool, optional): Whether a additive bias is required.
+            Defaults to False.
+        qk_scale (float, optional): A scaling factor. Defaults to None.
+        drop (float, optional): cfg of Dropout. Defaults to 0..
+        attn_drop (float, optional): cfg of Dropout. Defaults to 0.0.
+        drop_path (float, optional): The probability of drop path.
+            Defaults to 0.0.
+        pernorm (bool, optional): Whether to place the MxingBlock before norm.
+            Defaults to True.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 embed_dims: int,
+                 num_heads: int,
+                 mixer: str = 'Global',
+                 window_size: Tuple[int, int] = [7, 11],
+                 input_shape: Tuple[int, int] = [8, 25],
+                 mlp_ratio: float = 4.,
+                 qkv_bias: bool = False,
+                 qk_scale: float = None,
+                 drop: float = 0.,
+                 attn_drop: float = 0.,
+                 drop_path=0.,
+                 prenorm: bool = True,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+        super().__init__(init_cfg)
+        self.norm1 = nn.LayerNorm(embed_dims, eps=1e-6)
+        if mixer in {'Global', 'Local'}:
+            self.mixer = AttnMixer(
+                embed_dims,
+                num_heads=num_heads,
+                mixer=mixer,
+                input_shape=input_shape,
+                local_k=window_size,
+                qkv_bias=qkv_bias,
+                qk_scale=qk_scale,
+                attn_drop=attn_drop,
+                proj_drop=drop)
+        elif mixer == 'Conv':
+            self.mixer = ConvMixer(
+                embed_dims,
+                num_heads=num_heads,
+                input_shape=input_shape,
+                local_k=window_size)
+        else:
+            raise TypeError('The mixer must be one of [Global, Local, Conv]')
+        self.drop_path = DropPath(
+            drop_path) if drop_path > 0. else nn.Identity()
+        self.norm2 = nn.LayerNorm(embed_dims, eps=1e-6)
+        mlp_hidden_dim = int(embed_dims * mlp_ratio)
+        self.mlp_ratio = mlp_ratio
+        self.mlp = MLP(
+            in_features=embed_dims, hidden_features=mlp_hidden_dim, drop=drop)
+        self.prenorm = prenorm
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (torch.Tensor): A Tensor of shape :math:`(N, H*W, C)`.
+
+        Returns:
+            torch.Tensor: A Tensor of shape :math:`(N, H*W, C)`.
+        """
+        if self.prenorm:
+            x = self.norm1(x + self.drop_path(self.mixer(x)))
+            x = self.norm2(x + self.drop_path(self.mlp(x)))
+        else:
+            x = x + self.drop_path(self.mixer(self.norm1(x)))
+            x = x + self.drop_path(self.mlp(self.norm2(x)))
+        return x
+
+
+class MerigingBlock(BaseModule):
+    """The last block of any stage, except for the last stage.
+
+    Args:
+        in_channels (int): The channels of input.
+        out_channels (int): The channels of output.
+        types (str, optional): Which downsample operation of ['Pool', 'Conv'].
+            Defaults to 'Pool'.
+        stride (Union[int, Tuple[int, int]], optional): Stride of the Conv.
+            Defaults to [2, 1].
+        act (bool, optional): activation function. Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 out_channels: int,
+                 types: str = 'Pool',
+                 stride: Union[int, Tuple[int, int]] = [2, 1],
+                 act: bool = None,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+        super().__init__(init_cfg)
+        self.types = types
+        if types == 'Pool':
+            self.avgpool = nn.AvgPool2d(
+                kernel_size=[3, 5], stride=stride, padding=[1, 2])
+            self.maxpool = nn.MaxPool2d(
+                kernel_size=[3, 5], stride=stride, padding=[1, 2])
+            self.proj = nn.Linear(in_channels, out_channels)
+        else:
+            self.conv = nn.Conv2d(
+                in_channels,
+                out_channels,
+                kernel_size=3,
+                stride=stride,
+                padding=1)
+        self.norm = nn.LayerNorm(out_channels)
+        if act is not None:
+            self.act = act()
+        else:
+            self.act = None
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (torch.Tensor): A Tensor of shape :math:`(N, H, W, C)`.
+
+        Returns:
+            torch.Tensor: A Tensor of shape :math:`(N, H/2, W, 2C)`.
+        """
+        if self.types == 'Pool':
+            x = (self.avgpool(x) + self.maxpool(x)) * 0.5
+            out = self.proj(x.flatten(2).permute(0, 2, 1))
+
+        else:
+            x = self.conv(x)
+            out = x.flatten(2).permute(0, 2, 1)
+        out = self.norm(out)
+        if self.act is not None:
+            out = self.act(out)
+
+        return out
+
+
+@MODELS.register_module()
+class SVTREncoder(BaseModule):
+    """A PyTorch implementation of `SVTR: Scene Text Recognition with a Single
+    Visual Model <https://arxiv.org/abs/2205.00159>`_
+
+    Code is partially modified from https://github.com/PaddlePaddle/PaddleOCR.
+
+    Args:
+        img_size (Tuple[int, int], optional): The expected input image shape.
+            Defaults to [32, 100].
+        in_channels (int, optional): The num of input channels. Defaults to 3.
+        embed_dims (Tuple[int, int, int], optional): Number of input channels.
+            Defaults to [64, 128, 256].
+        depth (Tuple[int, int, int], optional):
+            The number of MixingBlock at each stage. Defaults to [3, 6, 3].
+        num_heads (Tuple[int, int, int], optional): Number of attention heads.
+            Defaults to [2, 4, 8].
+        mixer_types (Tuple[str], optional): Mixing type in a MixingBlock.
+            Defaults to ['Local']*6+['Global']*6.
+        window_size (Tuple[Tuple[int, int]], optional):
+            The height and width of the window at eeach stage.
+            Defaults to [[7, 11], [7, 11], [7, 11]].
+        merging_types (str, optional): The way of downsample in MergingBlock.
+            Defaults to 'Conv'.
+        mlp_ratio (int, optional): Ratio of hidden features to input in MLP.
+            Defaults to 4.
+        qkv_bias (bool, optional):
+            Whether to add bias for qkv in attention modules. Defaults to True.
+        qk_scale (float, optional): A scaling factor. Defaults to None.
+        drop_rate (float, optional): Probability of an element to be zeroed.
+            Defaults to 0.0.
+        last_drop (float, optional): cfg of dropout at last stage.
+            Defaults to 0.1.
+        attn_drop_rate (float, optional): _description_. Defaults to 0..
+        drop_path_rate (float, optional): stochastic depth rate.
+            Defaults to 0.1.
+        out_channels (int, optional): The num of output channels in backone.
+            Defaults to 192.
+        max_seq_len (int, optional): Maximum output sequence length :math:`T`.
+            Defaults to 25.
+        num_layers (int, optional): The num of conv in PatchEmbedding.
+            Defaults to 2.
+        prenorm (bool, optional): Whether to place the MixingBlock before norm.
+            Defaults to True.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 img_size: Tuple[int, int] = [32, 100],
+                 in_channels: int = 3,
+                 embed_dims: Tuple[int, int, int] = [64, 128, 256],
+                 depth: Tuple[int, int, int] = [3, 6, 3],
+                 num_heads: Tuple[int, int, int] = [2, 4, 8],
+                 mixer_types: Tuple[str] = ['Local'] * 6 + ['Global'] * 6,
+                 window_size: Tuple[Tuple[int, int]] = [[7, 11], [7, 11],
+                                                        [7, 11]],
+                 merging_types: str = 'Conv',
+                 mlp_ratio: int = 4,
+                 qkv_bias: bool = True,
+                 qk_scale: float = None,
+                 drop_rate: float = 0.,
+                 last_drop: float = 0.1,
+                 attn_drop_rate: float = 0.,
+                 drop_path_rate: float = 0.1,
+                 out_channels: int = 192,
+                 max_seq_len: int = 25,
+                 num_layers: int = 2,
+                 prenorm: bool = True,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None):
+        super().__init__(init_cfg)
+        self.img_size = img_size
+        self.embed_dims = embed_dims
+        self.out_channels = out_channels
+        self.prenorm = prenorm
+        self.patch_embed = OverlapPatchEmbed(
+            in_channels=in_channels,
+            embed_dims=embed_dims[0],
+            num_layers=num_layers)
+        num_patches = (img_size[1] // (2**num_layers)) * (
+            img_size[0] // (2**num_layers))
+        self.input_shape = [
+            img_size[0] // (2**num_layers), img_size[1] // (2**num_layers)
+        ]
+        self.absolute_pos_embed = nn.Parameter(
+            torch.zeros([1, num_patches, embed_dims[0]], dtype=torch.float32),
+            requires_grad=True)
+        self.pos_drop = nn.Dropout(drop_rate)
+        dpr = np.linspace(0, drop_path_rate, sum(depth))
+
+        self.blocks1 = nn.ModuleList([
+            MixingBlock(
+                embed_dims=embed_dims[0],
+                num_heads=num_heads[0],
+                mixer=mixer_types[0:depth[0]][i],
+                window_size=window_size[0],
+                input_shape=self.input_shape,
+                mlp_ratio=mlp_ratio,
+                qkv_bias=qkv_bias,
+                qk_scale=qk_scale,
+                drop=drop_rate,
+                attn_drop=attn_drop_rate,
+                drop_path=dpr[0:depth[0]][i],
+                prenorm=prenorm) for i in range(depth[0])
+        ])
+        self.downsample1 = MerigingBlock(
+            in_channels=embed_dims[0],
+            out_channels=embed_dims[1],
+            types=merging_types,
+            stride=[2, 1])
+        input_shape = [self.input_shape[0] // 2, self.input_shape[1]]
+        self.merging_types = merging_types
+
+        self.blocks2 = nn.ModuleList([
+            MixingBlock(
+                embed_dims=embed_dims[1],
+                num_heads=num_heads[1],
+                mixer=mixer_types[depth[0]:depth[0] + depth[1]][i],
+                window_size=window_size[1],
+                input_shape=input_shape,
+                mlp_ratio=mlp_ratio,
+                qkv_bias=qkv_bias,
+                qk_scale=qk_scale,
+                drop=drop_rate,
+                attn_drop=attn_drop_rate,
+                drop_path=dpr[depth[0]:depth[0] + depth[1]][i],
+                prenorm=prenorm) for i in range(depth[1])
+        ])
+        self.downsample2 = MerigingBlock(
+            in_channels=embed_dims[1],
+            out_channels=embed_dims[2],
+            types=merging_types,
+            stride=[2, 1])
+        input_shape = [self.input_shape[0] // 4, self.input_shape[1]]
+
+        self.blocks3 = nn.ModuleList([
+            MixingBlock(
+                embed_dims=embed_dims[2],
+                num_heads=num_heads[2],
+                mixer=mixer_types[depth[0] + depth[1]:][i],
+                window_size=window_size[2],
+                input_shape=input_shape,
+                mlp_ratio=mlp_ratio,
+                qkv_bias=qkv_bias,
+                qk_scale=qk_scale,
+                drop=drop_rate,
+                attn_drop=attn_drop_rate,
+                drop_path=dpr[depth[0] + depth[1]:][i],
+                prenorm=prenorm) for i in range(depth[2])
+        ])
+        self.layer_norm = nn.LayerNorm(self.embed_dims[-1], eps=1e-6)
+        self.avgpool = nn.AdaptiveAvgPool2d([1, max_seq_len])
+        self.last_conv = nn.Conv2d(
+            in_channels=embed_dims[2],
+            out_channels=self.out_channels,
+            kernel_size=1,
+            bias=False,
+            stride=1,
+            padding=0)
+        self.hardwish = nn.Hardswish()
+        self.dropout = nn.Dropout(p=last_drop)
+
+        trunc_normal_init(self.absolute_pos_embed, mean=0, std=0.02)
+        self.apply(self._init_weights)
+
+    def _init_weights(self, m):
+        if isinstance(m, nn.Linear):
+            trunc_normal_init(m.weight, mean=0, std=0.02)
+            if isinstance(m, nn.Linear) and m.bias is not None:
+                nn.init.zeros_(m.bias)
+        if isinstance(m, nn.LayerNorm):
+            nn.init.zeros_(m.bias)
+            nn.init.ones_(m.weight)
+        if isinstance(m, nn.Conv2d):
+            nn.init.kaiming_normal_(
+                m.weight, mode='fan_out', nonlinearity='relu')
+
+    def forward_features(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function except the last combing operation.
+
+        Args:
+            x (torch.Tensor): A Tensor of shape :math:`(N, H, W, C)`.
+
+        Returns:
+            torch.Tensor: A Tensor of shape :math:`(N, H/16, W/4, 256)`.
+        """
+        x = self.patch_embed(x)
+        x = x + self.absolute_pos_embed
+        x = self.pos_drop(x)
+        for blk in self.blocks1:
+            x = blk(x)
+        x = self.downsample1(
+            x.permute(0, 2, 1).reshape([
+                -1, self.embed_dims[0], self.input_shape[0],
+                self.input_shape[1]
+            ]))
+
+        for blk in self.blocks2:
+            x = blk(x)
+        x = self.downsample2(
+            x.permute(0, 2, 1).reshape([
+                -1, self.embed_dims[1], self.input_shape[0] // 2,
+                self.input_shape[1]
+            ]))
+
+        for blk in self.blocks3:
+            x = blk(x)
+        if not self.prenorm:
+            x = self.layer_norm(x)
+        return x
+
+    def forward(self,
+                x: torch.Tensor,
+                data_samples: List[TextRecogDataSample] = None
+                ) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (torch.Tensor): A Tensor of shape :math:`(N, H/16, W/4, 256)`.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample. Defaults to None.
+
+        Returns:
+            torch.Tensor: A Tensor of shape :math:`(N, 1, W/4, 192)`.
+        """
+        x = self.forward_features(x)
+        x = self.avgpool(
+            x.permute(0, 2, 1).reshape([
+                -1, self.embed_dims[2], self.input_shape[0] // 4,
+                self.input_shape[1]
+            ]))
+        x = self.last_conv(x)
+        x = self.hardwish(x)
+        x = self.dropout(x)
+        return x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/layers/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/layers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..a1fa8af5586145c8e31c463e6d0620c9f1af2e3b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/layers/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .conv_layer import BasicBlock, Bottleneck
+from .dot_product_attention_layer import DotProductAttentionLayer
+from .lstm_layer import BidirectionalLSTM
+from .position_aware_layer import PositionAwareLayer
+from .robust_scanner_fusion_layer import RobustScannerFusionLayer
+from .satrn_layers import Adaptive2DPositionalEncoding, SATRNEncoderLayer
+
+__all__ = [
+    'BidirectionalLSTM', 'Adaptive2DPositionalEncoding', 'BasicBlock',
+    'Bottleneck', 'RobustScannerFusionLayer', 'DotProductAttentionLayer',
+    'PositionAwareLayer', 'SATRNEncoderLayer'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/layers/conv_layer.py b/mmocr-dev-1.x/mmocr/models/textrecog/layers/conv_layer.py
new file mode 100644
index 0000000000000000000000000000000000000000..a60f2f5599318e29fd3e97b6079fa6db388a507e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/layers/conv_layer.py
@@ -0,0 +1,182 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+from mmcv.cnn import build_plugin_layer
+
+
+def conv3x3(in_planes, out_planes, stride=1):
+    """3x3 convolution with padding."""
+    return nn.Conv2d(
+        in_planes,
+        out_planes,
+        kernel_size=3,
+        stride=stride,
+        padding=1,
+        bias=False)
+
+
+def conv1x1(in_planes, out_planes):
+    """1x1 convolution with padding."""
+    return nn.Conv2d(
+        in_planes, out_planes, kernel_size=1, stride=1, padding=0, bias=False)
+
+
+class BasicBlock(nn.Module):
+
+    expansion = 1
+
+    def __init__(self,
+                 inplanes,
+                 planes,
+                 stride=1,
+                 downsample=None,
+                 use_conv1x1=False,
+                 plugins=None):
+        super().__init__()
+
+        if use_conv1x1:
+            self.conv1 = conv1x1(inplanes, planes)
+            self.conv2 = conv3x3(planes, planes * self.expansion, stride)
+        else:
+            self.conv1 = conv3x3(inplanes, planes, stride)
+            self.conv2 = conv3x3(planes, planes * self.expansion)
+
+        self.with_plugins = False
+        if plugins:
+            if isinstance(plugins, dict):
+                plugins = [plugins]
+            self.with_plugins = True
+            # collect plugins for conv1/conv2/
+            self.before_conv1_plugin = [
+                plugin['cfg'] for plugin in plugins
+                if plugin['position'] == 'before_conv1'
+            ]
+            self.after_conv1_plugin = [
+                plugin['cfg'] for plugin in plugins
+                if plugin['position'] == 'after_conv1'
+            ]
+            self.after_conv2_plugin = [
+                plugin['cfg'] for plugin in plugins
+                if plugin['position'] == 'after_conv2'
+            ]
+            self.after_shortcut_plugin = [
+                plugin['cfg'] for plugin in plugins
+                if plugin['position'] == 'after_shortcut'
+            ]
+
+        self.planes = planes
+        self.bn1 = nn.BatchNorm2d(planes)
+        self.relu = nn.ReLU(inplace=True)
+        self.bn2 = nn.BatchNorm2d(planes * self.expansion)
+        self.downsample = downsample
+        self.stride = stride
+
+        if self.with_plugins:
+            self.before_conv1_plugin_names = self.make_block_plugins(
+                inplanes, self.before_conv1_plugin)
+            self.after_conv1_plugin_names = self.make_block_plugins(
+                planes, self.after_conv1_plugin)
+            self.after_conv2_plugin_names = self.make_block_plugins(
+                planes, self.after_conv2_plugin)
+            self.after_shortcut_plugin_names = self.make_block_plugins(
+                planes, self.after_shortcut_plugin)
+
+    def make_block_plugins(self, in_channels, plugins):
+        """make plugins for block.
+
+        Args:
+            in_channels (int): Input channels of plugin.
+            plugins (list[dict]): List of plugins cfg to build.
+
+        Returns:
+            list[str]: List of the names of plugin.
+        """
+        assert isinstance(plugins, list)
+        plugin_names = []
+        for plugin in plugins:
+            plugin = plugin.copy()
+            name, layer = build_plugin_layer(
+                plugin,
+                in_channels=in_channels,
+                out_channels=in_channels,
+                postfix=plugin.pop('postfix', ''))
+            assert not hasattr(self, name), f'duplicate plugin {name}'
+            self.add_module(name, layer)
+            plugin_names.append(name)
+        return plugin_names
+
+    def forward_plugin(self, x, plugin_names):
+        out = x
+        for name in plugin_names:
+            out = getattr(self, name)(x)
+        return out
+
+    def forward(self, x):
+        if self.with_plugins:
+            x = self.forward_plugin(x, self.before_conv1_plugin_names)
+        residual = x
+
+        out = self.conv1(x)
+        out = self.bn1(out)
+        out = self.relu(out)
+
+        if self.with_plugins:
+            out = self.forward_plugin(out, self.after_conv1_plugin_names)
+
+        out = self.conv2(out)
+        out = self.bn2(out)
+
+        if self.with_plugins:
+            out = self.forward_plugin(out, self.after_conv2_plugin_names)
+
+        if self.downsample is not None:
+            residual = self.downsample(x)
+
+        out += residual
+        out = self.relu(out)
+
+        if self.with_plugins:
+            out = self.forward_plugin(out, self.after_shortcut_plugin_names)
+
+        return out
+
+
+class Bottleneck(nn.Module):
+    expansion = 4
+
+    def __init__(self, inplanes, planes, stride=1, downsample=False):
+        super().__init__()
+        self.conv1 = nn.Conv2d(inplanes, planes, kernel_size=1, bias=False)
+        self.bn1 = nn.BatchNorm2d(planes)
+        self.conv2 = nn.Conv2d(planes, planes, 3, stride, 1, bias=False)
+        self.bn2 = nn.BatchNorm2d(planes)
+        self.conv3 = nn.Conv2d(
+            planes, planes * self.expansion, kernel_size=1, bias=False)
+        self.bn3 = nn.BatchNorm2d(planes * self.expansion)
+        self.relu = nn.ReLU(inplace=True)
+        if downsample:
+            self.downsample = nn.Sequential(
+                nn.Conv2d(
+                    inplanes, planes * self.expansion, 1, stride, bias=False),
+                nn.BatchNorm2d(planes * self.expansion),
+            )
+        else:
+            self.downsample = nn.Sequential()
+
+    def forward(self, x):
+        residual = self.downsample(x)
+
+        out = self.conv1(x)
+        out = self.bn1(out)
+        out = self.relu(out)
+
+        out = self.conv2(out)
+        out = self.bn2(out)
+        out = self.relu(out)
+
+        out = self.conv3(out)
+        out = self.bn3(out)
+
+        out += residual
+        out = self.relu(out)
+
+        return out
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/layers/dot_product_attention_layer.py b/mmocr-dev-1.x/mmocr/models/textrecog/layers/dot_product_attention_layer.py
new file mode 100644
index 0000000000000000000000000000000000000000..6d9cdb6528d90d9ec6e0bf0ac2a2343bd7227cc2
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/layers/dot_product_attention_layer.py
@@ -0,0 +1,28 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+
+class DotProductAttentionLayer(nn.Module):
+
+    def __init__(self, dim_model=None):
+        super().__init__()
+
+        self.scale = dim_model**-0.5 if dim_model is not None else 1.
+
+    def forward(self, query, key, value, mask=None):
+        n, seq_len = mask.size()
+        logits = torch.matmul(query.permute(0, 2, 1), key) * self.scale
+
+        if mask is not None:
+            mask = mask.view(n, 1, seq_len)
+            logits = logits.masked_fill(mask, float('-inf'))
+
+        weights = F.softmax(logits, dim=2)
+
+        glimpse = torch.matmul(weights, value.transpose(1, 2))
+
+        glimpse = glimpse.permute(0, 2, 1).contiguous()
+
+        return glimpse
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/layers/lstm_layer.py b/mmocr-dev-1.x/mmocr/models/textrecog/layers/lstm_layer.py
new file mode 100644
index 0000000000000000000000000000000000000000..16d3c1a4e5285c238176d2e0be76463657f282e5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/layers/lstm_layer.py
@@ -0,0 +1,21 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+
+
+class BidirectionalLSTM(nn.Module):
+
+    def __init__(self, nIn, nHidden, nOut):
+        super().__init__()
+
+        self.rnn = nn.LSTM(nIn, nHidden, bidirectional=True)
+        self.embedding = nn.Linear(nHidden * 2, nOut)
+
+    def forward(self, input):
+        recurrent, _ = self.rnn(input)
+        T, b, h = recurrent.size()
+        t_rec = recurrent.view(T * b, h)
+
+        output = self.embedding(t_rec)  # [T * b, nOut]
+        output = output.view(T, b, -1)
+
+        return output
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/layers/position_aware_layer.py b/mmocr-dev-1.x/mmocr/models/textrecog/layers/position_aware_layer.py
new file mode 100644
index 0000000000000000000000000000000000000000..2c994e372782aa882e9c3a32cec4e9bf733008ae
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/layers/position_aware_layer.py
@@ -0,0 +1,36 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+
+
+class PositionAwareLayer(nn.Module):
+
+    def __init__(self, dim_model, rnn_layers=2):
+        super().__init__()
+
+        self.dim_model = dim_model
+
+        self.rnn = nn.LSTM(
+            input_size=dim_model,
+            hidden_size=dim_model,
+            num_layers=rnn_layers,
+            batch_first=True)
+
+        self.mixer = nn.Sequential(
+            nn.Conv2d(
+                dim_model, dim_model, kernel_size=3, stride=1, padding=1),
+            nn.ReLU(True),
+            nn.Conv2d(
+                dim_model, dim_model, kernel_size=3, stride=1, padding=1))
+
+    def forward(self, img_feature):
+        n, c, h, w = img_feature.size()
+
+        rnn_input = img_feature.permute(0, 2, 3, 1).contiguous()
+        rnn_input = rnn_input.view(n * h, w, c)
+        rnn_output, _ = self.rnn(rnn_input)
+        rnn_output = rnn_output.view(n, h, w, c)
+        rnn_output = rnn_output.permute(0, 3, 1, 2).contiguous()
+
+        out = self.mixer(rnn_output)
+
+        return out
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/layers/robust_scanner_fusion_layer.py b/mmocr-dev-1.x/mmocr/models/textrecog/layers/robust_scanner_fusion_layer.py
new file mode 100644
index 0000000000000000000000000000000000000000..126d119f3e3853c53d1a0a584c6cfbc0197ca90c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/layers/robust_scanner_fusion_layer.py
@@ -0,0 +1,24 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch
+import torch.nn as nn
+from mmengine.model import BaseModule
+
+
+class RobustScannerFusionLayer(BaseModule):
+
+    def __init__(self, dim_model, dim=-1, init_cfg=None):
+        super().__init__(init_cfg=init_cfg)
+
+        self.dim_model = dim_model
+        self.dim = dim
+
+        self.linear_layer = nn.Linear(dim_model * 2, dim_model * 2)
+        self.glu_layer = nn.GLU(dim=dim)
+
+    def forward(self, x0, x1):
+        assert x0.size() == x1.size()
+        fusion_input = torch.cat([x0, x1], self.dim)
+        output = self.linear_layer(fusion_input)
+        output = self.glu_layer(output)
+
+        return output
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/layers/satrn_layers.py b/mmocr-dev-1.x/mmocr/models/textrecog/layers/satrn_layers.py
new file mode 100644
index 0000000000000000000000000000000000000000..a8441c1bcf0f98c10ff35ce270578016e003d1e6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/layers/satrn_layers.py
@@ -0,0 +1,230 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Union
+
+import numpy as np
+import torch
+import torch.nn as nn
+from mmcv.cnn import ConvModule
+from mmengine.model import BaseModule
+from torch import Tensor
+
+from mmocr.models.common import MultiHeadAttention
+
+
+class SATRNEncoderLayer(BaseModule):
+    """Implement encoder layer for SATRN, see `SATRN.
+
+    <https://arxiv.org/abs/1910.04396>`_.
+
+    Args:
+        d_model (int): Dimension :math:`D_m` of the input from previous model.
+            Defaults to 512.
+        d_inner (int): Hidden dimension of feedforward layers. Defaults to 256.
+        n_head (int): Number of parallel attention heads. Defaults to 8.
+        d_k (int): Dimension of the key vector. Defaults to 64.
+        d_v (int): Dimension of the value vector. Defaults to 64.
+        dropout (float): Dropout rate. Defaults to 0.1.
+        qkv_bias (bool): Whether to use bias. Defaults to False.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 d_model: int = 512,
+                 d_inner: int = 512,
+                 n_head: int = 8,
+                 d_k: int = 64,
+                 d_v: int = 64,
+                 dropout: float = 0.1,
+                 qkv_bias: bool = False,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.norm1 = nn.LayerNorm(d_model)
+        self.attn = MultiHeadAttention(
+            n_head, d_model, d_k, d_v, qkv_bias=qkv_bias, dropout=dropout)
+        self.norm2 = nn.LayerNorm(d_model)
+        self.feed_forward = LocalityAwareFeedforward(d_model, d_inner)
+
+    def forward(self,
+                x: Tensor,
+                h: int,
+                w: int,
+                mask: Optional[Tensor] = None) -> Tensor:
+        """Forward propagation of encoder.
+
+        Args:
+            x (Tensor): Feature tensor of shape :math:`(N, h*w, D_m)`.
+            h (int): Height of the original feature.
+            w (int): Width of the original feature.
+            mask (Tensor, optional): Mask used for masked multi-head attention.
+                Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, h*w, D_m)`.
+        """
+        n, hw, c = x.size()
+        residual = x
+        x = self.norm1(x)
+        x = residual + self.attn(x, x, x, mask)
+        residual = x
+        x = self.norm2(x)
+        x = x.transpose(1, 2).contiguous().view(n, c, h, w)
+        x = self.feed_forward(x)
+        x = x.view(n, c, hw).transpose(1, 2)
+        x = residual + x
+        return x
+
+
+class LocalityAwareFeedforward(BaseModule):
+    """Locality-aware feedforward layer in SATRN, see `SATRN.
+
+    <https://arxiv.org/abs/1910.04396>`_
+
+    Args:
+        d_in (int): Dimension of the input features.
+        d_hid (int): Hidden dimension of feedforward layers.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to [dict(type='Xavier', layer='Conv2d'),
+            dict(type='Constant', layer='BatchNorm2d', val=1, bias=0)].
+    """
+
+    def __init__(
+        self,
+        d_in: int,
+        d_hid: int,
+        init_cfg: Optional[Union[Dict, List[Dict]]] = [
+            dict(type='Xavier', layer='Conv2d'),
+            dict(type='Constant', layer='BatchNorm2d', val=1, bias=0)
+        ]
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.conv1 = ConvModule(
+            d_in,
+            d_hid,
+            kernel_size=1,
+            padding=0,
+            bias=False,
+            norm_cfg=dict(type='BN'),
+            act_cfg=dict(type='ReLU'))
+
+        self.depthwise_conv = ConvModule(
+            d_hid,
+            d_hid,
+            kernel_size=3,
+            padding=1,
+            bias=False,
+            groups=d_hid,
+            norm_cfg=dict(type='BN'),
+            act_cfg=dict(type='ReLU'))
+
+        self.conv2 = ConvModule(
+            d_hid,
+            d_in,
+            kernel_size=1,
+            padding=0,
+            bias=False,
+            norm_cfg=dict(type='BN'),
+            act_cfg=dict(type='ReLU'))
+
+    def forward(self, x: Tensor) -> Tensor:
+        """Forward propagation of Locality Aware Feedforward module.
+
+        Args:
+            x (Tensor): Feature tensor.
+
+        Returns:
+            Tensor: Feature tensor after Locality Aware Feedforward.
+        """
+        x = self.conv1(x)
+        x = self.depthwise_conv(x)
+        x = self.conv2(x)
+        return x
+
+
+class Adaptive2DPositionalEncoding(BaseModule):
+    """Implement Adaptive 2D positional encoder for SATRN, see `SATRN.
+
+    <https://arxiv.org/abs/1910.04396>`_ Modified from
+    https://github.com/Media-Smart/vedastr Licensed under the Apache License,
+    Version 2.0 (the "License");
+
+    Args:
+        d_hid (int): Dimensions of hidden layer. Defaults to 512.
+        n_height (int): Max height of the 2D feature output. Defaults to 100.
+        n_width (int): Max width of the 2D feature output. Defaults to 100.
+        dropout (float): Dropout rate. Defaults to 0.1.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to [dict(type='Xavier', layer='Conv2d')]
+    """
+
+    def __init__(
+        self,
+        d_hid: int = 512,
+        n_height: int = 100,
+        n_width: int = 100,
+        dropout: float = 0.1,
+        init_cfg: Optional[Union[Dict, List[Dict]]] = [
+            dict(type='Xavier', layer='Conv2d')
+        ]
+    ) -> None:
+        super().__init__(init_cfg=init_cfg)
+
+        h_position_encoder = self._get_sinusoid_encoding_table(n_height, d_hid)
+        h_position_encoder = h_position_encoder.transpose(0, 1)
+        h_position_encoder = h_position_encoder.view(1, d_hid, n_height, 1)
+
+        w_position_encoder = self._get_sinusoid_encoding_table(n_width, d_hid)
+        w_position_encoder = w_position_encoder.transpose(0, 1)
+        w_position_encoder = w_position_encoder.view(1, d_hid, 1, n_width)
+
+        self.register_buffer('h_position_encoder', h_position_encoder)
+        self.register_buffer('w_position_encoder', w_position_encoder)
+
+        self.h_scale = self._scale_factor_generate(d_hid)
+        self.w_scale = self._scale_factor_generate(d_hid)
+        self.pool = nn.AdaptiveAvgPool2d(1)
+        self.dropout = nn.Dropout(p=dropout)
+
+    @staticmethod
+    def _get_sinusoid_encoding_table(n_position: int, d_hid: int) -> Tensor:
+        """Generate sinusoid position encoding table."""
+        denominator = torch.Tensor([
+            1.0 / np.power(10000, 2 * (hid_j // 2) / d_hid)
+            for hid_j in range(d_hid)
+        ])
+        denominator = denominator.view(1, -1)
+        pos_tensor = torch.arange(n_position).unsqueeze(-1).float()
+        sinusoid_table = pos_tensor * denominator
+        sinusoid_table[:, 0::2] = torch.sin(sinusoid_table[:, 0::2])
+        sinusoid_table[:, 1::2] = torch.cos(sinusoid_table[:, 1::2])
+
+        return sinusoid_table
+
+    @staticmethod
+    def _scale_factor_generate(d_hid: int) -> nn.Sequential:
+        """Generate scale factor layers."""
+        scale_factor = nn.Sequential(
+            nn.Conv2d(d_hid, d_hid, kernel_size=1), nn.ReLU(inplace=True),
+            nn.Conv2d(d_hid, d_hid, kernel_size=1), nn.Sigmoid())
+
+        return scale_factor
+
+    def forward(self, x: Tensor) -> Tensor:
+        """Forward propagation of Locality Aware Feedforward module.
+
+        Args:
+            x (Tensor): Feature tensor.
+
+        Returns:
+            Tensor: Feature tensor after Locality Aware Feedforward.
+        """
+        _, _, h, w = x.size()
+        avg_pool = self.pool(x)
+        h_pos_encoding = \
+            self.h_scale(avg_pool) * self.h_position_encoder[:, :, :h, :]
+        w_pos_encoding = \
+            self.w_scale(avg_pool) * self.w_position_encoder[:, :, :, :w]
+        out = x + h_pos_encoding + w_pos_encoding
+        out = self.dropout(out)
+
+        return out
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/__init__.py
new file mode 100755
index 0000000000000000000000000000000000000000..f5a81305d4fc345d6ce4c73a806aad551fac85b4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/__init__.py
@@ -0,0 +1,9 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .abi_module_loss import ABIModuleLoss
+from .base import BaseTextRecogModuleLoss
+from .ce_module_loss import CEModuleLoss
+from .ctc_module_loss import CTCModuleLoss
+
+__all__ = [
+    'BaseTextRecogModuleLoss', 'CEModuleLoss', 'CTCModuleLoss', 'ABIModuleLoss'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/abi_module_loss.py b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/abi_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..918847b9d02bcb7f5e9de9abbb2b0d0837dfe47c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/abi_module_loss.py
@@ -0,0 +1,99 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Sequence, Union
+
+import torch
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseTextRecogModuleLoss
+from .ce_module_loss import CEModuleLoss
+
+
+@MODELS.register_module()
+class ABIModuleLoss(BaseTextRecogModuleLoss):
+    """Implementation of ABINet multiloss that allows mixing different types of
+    losses with weights.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        max_seq_len (int): Maximum sequence length. The sequence is usually
+            generated from decoder. Defaults to 40.
+        letter_case (str): There are three options to alter the letter cases
+            of gt texts:
+            - unchanged: Do not change gt texts.
+            - upper: Convert gt texts into uppercase characters.
+            - lower: Convert gt texts into lowercase characters.
+            Usually, it only works for English characters. Defaults to
+            'unchanged'.
+        weight_vis (float or int): The weight of vision decoder loss. Defaults
+            to 1.0.
+        weight_dec (float or int): The weight of language decoder loss.
+            Defaults to 1.0.
+        weight_fusion (float or int): The weight of fuser (aligner) loss.
+            Defaults to 1.0.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 max_seq_len: int = 40,
+                 letter_case: str = 'unchanged',
+                 weight_vis: Union[float, int] = 1.0,
+                 weight_lang: Union[float, int] = 1.0,
+                 weight_fusion: Union[float, int] = 1.0,
+                 **kwargs) -> None:
+        assert isinstance(weight_vis, (float, int))
+        assert isinstance(weight_lang, (float, int))
+        assert isinstance(weight_fusion, (float, int))
+        super().__init__(
+            dictionary=dictionary,
+            max_seq_len=max_seq_len,
+            letter_case=letter_case)
+        self.weight_vis = weight_vis
+        self.weight_lang = weight_lang
+        self.weight_fusion = weight_fusion
+        self._ce_loss = CEModuleLoss(
+            self.dictionary,
+            max_seq_len,
+            letter_case,
+            reduction='mean',
+            ignore_first_char=True)
+
+    def forward(self, outputs: Dict,
+                data_samples: Sequence[TextRecogDataSample]) -> Dict:
+        """
+        Args:
+            outputs (dict): The output dictionary with at least one of
+                ``out_vis``, ``out_langs`` and ``out_fusers`` specified.
+            data_samples (list[TextRecogDataSample]): List of
+                ``TextRecogDataSample`` which are processed by ``get_target``.
+
+        Returns:
+            dict: A loss dictionary with ``loss_visual``, ``loss_lang`` and
+            ``loss_fusion``. Each should either be the loss tensor or None if
+            the output of its corresponding module is not given.
+        """
+        assert 'out_vis' in outputs or \
+            'out_langs' in outputs or 'out_fusers' in outputs
+        losses = {}
+
+        if outputs.get('out_vis', None):
+            losses['loss_visual'] = self.weight_vis * self._ce_loss(
+                outputs['out_vis']['logits'], data_samples)['loss_ce']
+        if outputs.get('out_langs', None):
+            lang_losses = []
+            for out_lang in outputs['out_langs']:
+                lang_losses.append(
+                    self._ce_loss(out_lang['logits'], data_samples)['loss_ce'])
+            losses['loss_lang'] = self.weight_lang * torch.mean(
+                torch.stack(lang_losses))
+        if outputs.get('out_fusers', None):
+            fuser_losses = []
+            for out_fuser in outputs['out_fusers']:
+                fuser_losses.append(
+                    self._ce_loss(out_fuser['logits'],
+                                  data_samples)['loss_ce'])
+            losses['loss_fusion'] = self.weight_fusion * torch.mean(
+                torch.stack(fuser_losses))
+        return losses
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/base.py b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..5fbf83df9dbfe9d962d2e37af7edde7c833b603a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/base.py
@@ -0,0 +1,132 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from typing import Dict, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import TASK_UTILS
+from mmocr.structures import TextRecogDataSample
+
+
+class BaseTextRecogModuleLoss(nn.Module):
+    """Base recognition loss.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        max_seq_len (int): Maximum sequence length. The sequence is usually
+            generated from decoder. Defaults to 40.
+        letter_case (str): There are three options to alter the letter cases
+            of gt texts:
+            - unchanged: Do not change gt texts.
+            - upper: Convert gt texts into uppercase characters.
+            - lower: Convert gt texts into lowercase characters.
+            Usually, it only works for English characters. Defaults to
+            'unchanged'.
+        pad_with (str): The padding strategy for ``gt_text.padded_indexes``.
+            Defaults to 'auto'. Options are:
+            - 'auto': Use dictionary.padding_idx to pad gt texts, or
+              dictionary.end_idx if dictionary.padding_idx
+              is None.
+            - 'padding': Always use dictionary.padding_idx to pad gt texts.
+            - 'end': Always use dictionary.end_idx to pad gt texts.
+            - 'none': Do not pad gt texts.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 max_seq_len: int = 40,
+                 letter_case: str = 'unchanged',
+                 pad_with: str = 'auto',
+                 **kwargs) -> None:
+        super().__init__()
+        if isinstance(dictionary, dict):
+            self.dictionary = TASK_UTILS.build(dictionary)
+        elif isinstance(dictionary, Dictionary):
+            self.dictionary = dictionary
+        else:
+            raise TypeError(
+                'The type of dictionary should be `Dictionary` or dict, '
+                f'but got {type(dictionary)}')
+        self.max_seq_len = max_seq_len
+        assert letter_case in ['unchanged', 'upper', 'lower']
+        self.letter_case = letter_case
+
+        assert pad_with in ['auto', 'padding', 'end', 'none']
+        if pad_with == 'auto':
+            self.pad_idx = self.dictionary.padding_idx or \
+                self.dictionary.end_idx
+        elif pad_with == 'padding':
+            self.pad_idx = self.dictionary.padding_idx
+        elif pad_with == 'end':
+            self.pad_idx = self.dictionary.end_idx
+        else:
+            self.pad_idx = None
+        if self.pad_idx is None and pad_with != 'none':
+            if pad_with == 'auto':
+                raise ValueError('pad_with="auto", but dictionary.end_idx'
+                                 ' and dictionary.padding_idx are both None')
+            else:
+                raise ValueError(
+                    f'pad_with="{pad_with}", but dictionary.{pad_with}_idx is'
+                    ' None')
+
+    def get_targets(
+        self, data_samples: Sequence[TextRecogDataSample]
+    ) -> Sequence[TextRecogDataSample]:
+        """Target generator.
+
+        Args:
+            data_samples (list[TextRecogDataSample]): It usually includes
+                ``gt_text`` information.
+
+        Returns:
+            list[TextRecogDataSample]: Updated data_samples. Two keys will be
+            added to data_sample:
+
+            - indexes (torch.LongTensor): Character indexes representing gt
+              texts. All special tokens are excluded, except for UKN.
+            - padded_indexes (torch.LongTensor): Character indexes
+              representing gt texts with BOS and EOS if applicable, following
+              several padding indexes until the length reaches ``max_seq_len``.
+              In particular, if ``pad_with='none'``, no padding will be
+              applied.
+        """
+
+        for data_sample in data_samples:
+            if data_sample.get('have_target', False):
+                continue
+            text = data_sample.gt_text.item
+            if self.letter_case in ['upper', 'lower']:
+                text = getattr(text, self.letter_case)()
+            indexes = self.dictionary.str2idx(text)
+            indexes = torch.LongTensor(indexes)
+
+            # target indexes for loss
+            src_target = torch.LongTensor(indexes.size(0) + 2).fill_(0)
+            src_target[1:-1] = indexes
+            if self.dictionary.start_idx is not None:
+                src_target[0] = self.dictionary.start_idx
+                slice_start = 0
+            else:
+                slice_start = 1
+            if self.dictionary.end_idx is not None:
+                src_target[-1] = self.dictionary.end_idx
+                slice_end = src_target.size(0)
+            else:
+                slice_end = src_target.size(0) - 1
+            src_target = src_target[slice_start:slice_end]
+            if self.pad_idx is not None:
+                padded_indexes = (torch.ones(self.max_seq_len) *
+                                  self.pad_idx).long()
+                char_num = min(src_target.size(0), self.max_seq_len)
+                padded_indexes[:char_num] = src_target[:char_num]
+            else:
+                padded_indexes = src_target
+            # put in DataSample
+            data_sample.gt_text.indexes = indexes
+            data_sample.gt_text.padded_indexes = padded_indexes
+            data_sample.set_metainfo(dict(have_target=True))
+        return data_samples
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/ce_module_loss.py b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/ce_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..a351ea0c553bf1e1c7c9534630178904ba0f1a30
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/ce_module_loss.py
@@ -0,0 +1,138 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseTextRecogModuleLoss
+
+
+@MODELS.register_module()
+class CEModuleLoss(BaseTextRecogModuleLoss):
+    """Implementation of loss module for encoder-decoder based text recognition
+    method with CrossEntropy loss.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        max_seq_len (int): Maximum sequence length. The sequence is usually
+            generated from decoder. Defaults to 40.
+        letter_case (str): There are three options to alter the letter cases
+            of gt texts:
+            - unchanged: Do not change gt texts.
+            - upper: Convert gt texts into uppercase characters.
+            - lower: Convert gt texts into lowercase characters.
+            Usually, it only works for English characters. Defaults to
+            'unchanged'.
+        pad_with (str): The padding strategy for ``gt_text.padded_indexes``.
+            Defaults to 'auto'. Options are:
+            - 'auto': Use dictionary.padding_idx to pad gt texts, or
+              dictionary.end_idx if dictionary.padding_idx
+              is None.
+            - 'padding': Always use dictionary.padding_idx to pad gt texts.
+            - 'end': Always use dictionary.end_idx to pad gt texts.
+            - 'none': Do not pad gt texts.
+        ignore_char (int or str): Specifies a target value that is
+            ignored and does not contribute to the input gradient.
+            ignore_char can be int or str. If int, it is the index of
+            the ignored char. If str, it is the character to ignore.
+            Apart from single characters, each item can be one of the
+            following reversed keywords: 'padding', 'start', 'end',
+            and 'unknown', which refer to their corresponding special
+            tokens in the dictionary. It will not ignore any special
+            tokens when ignore_char == -1 or 'none'. Defaults to 'padding'.
+        flatten (bool): Whether to flatten the output and target before
+            computing CE loss. Defaults to False.
+        reduction (str): Specifies the reduction to apply to the output,
+            should be one of the following: ('none', 'mean', 'sum'). Defaults
+            to 'none'.
+        ignore_first_char (bool): Whether to ignore the first token in target (
+            usually the start token). If ``True``, the last token of the output
+            sequence will also be removed to be aligned with the target length.
+            Defaults to ``False``.
+        flatten (bool): Whether to flatten the vectors for loss computation.
+            Defaults to False.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 max_seq_len: int = 40,
+                 letter_case: str = 'unchanged',
+                 pad_with: str = 'auto',
+                 ignore_char: Union[int, str] = 'padding',
+                 flatten: bool = False,
+                 reduction: str = 'none',
+                 ignore_first_char: bool = False):
+        super().__init__(
+            dictionary=dictionary,
+            max_seq_len=max_seq_len,
+            letter_case=letter_case,
+            pad_with=pad_with)
+        assert isinstance(ignore_char, (int, str))
+        assert isinstance(reduction, str)
+        assert reduction in ['none', 'mean', 'sum']
+        assert isinstance(ignore_first_char, bool)
+        assert isinstance(flatten, bool)
+        self.flatten = flatten
+
+        self.ignore_first_char = ignore_first_char
+
+        if isinstance(ignore_char, int):
+            ignore_index = ignore_char
+        else:
+            mapping_table = {
+                'none': -1,
+                'start': self.dictionary.start_idx,
+                'padding': self.dictionary.padding_idx,
+                'end': self.dictionary.end_idx,
+                'unknown': self.dictionary.unknown_idx,
+            }
+
+            ignore_index = mapping_table.get(
+                ignore_char,
+                self.dictionary.char2idx(ignore_char, strict=False))
+            if ignore_index is None or (ignore_index
+                                        == self.dictionary.unknown_idx
+                                        and ignore_char != 'unknown'):
+                warnings.warn(
+                    f'{ignore_char} does not exist in the dictionary',
+                    UserWarning)
+                ignore_index = -1
+
+        self.ignore_char = ignore_char
+        self.ignore_index = ignore_index
+        self.loss_ce = nn.CrossEntropyLoss(
+            ignore_index=ignore_index, reduction=reduction)
+
+    def forward(self, outputs: torch.Tensor,
+                data_samples: Sequence[TextRecogDataSample]) -> Dict:
+        """
+        Args:
+            outputs (Tensor): A raw logit tensor of shape :math:`(N, T, C)`.
+            data_samples (list[TextRecogDataSample]): List of
+                ``TextRecogDataSample`` which are processed by ``get_target``.
+
+        Returns:
+            dict: A loss dict with the key ``loss_ce``.
+        """
+        targets = list()
+        for data_sample in data_samples:
+            targets.append(data_sample.gt_text.padded_indexes)
+        targets = torch.stack(targets, dim=0).long()
+        if self.ignore_first_char:
+            targets = targets[:, 1:].contiguous()
+            outputs = outputs[:, :-1, :].contiguous()
+        if self.flatten:
+            outputs = outputs.view(-1, outputs.size(-1))
+            targets = targets.view(-1)
+        else:
+            outputs = outputs.permute(0, 2, 1).contiguous()
+
+        loss_ce = self.loss_ce(outputs, targets.to(outputs.device))
+        losses = dict(loss_ce=loss_ce)
+
+        return losses
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/ctc_module_loss.py b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/ctc_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..e98d7b4c905487d1158402dd00d82570207513b5
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/module_losses/ctc_module_loss.py
@@ -0,0 +1,130 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Dict, Sequence, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseTextRecogModuleLoss
+
+
+@MODELS.register_module()
+class CTCModuleLoss(BaseTextRecogModuleLoss):
+    """Implementation of loss module for CTC-loss based text recognition.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        letter_case (str): There are three options to alter the letter cases
+            of gt texts:
+            - unchanged: Do not change gt texts.
+            - upper: Convert gt texts into uppercase characters.
+            - lower: Convert gt texts into lowercase characters.
+            Usually, it only works for English characters. Defaults to
+            'unchanged'.
+        flatten (bool): If True, use flattened targets, else padded targets.
+        reduction (str): Specifies the reduction to apply to the output,
+            should be one of the following: ('none', 'mean', 'sum').
+        zero_infinity (bool): Whether to zero infinite losses and
+            the associated gradients. Default: False.
+            Infinite losses mainly occur when the inputs
+            are too short to be aligned to the targets.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 letter_case: str = 'unchanged',
+                 flatten: bool = True,
+                 reduction: str = 'mean',
+                 zero_infinity: bool = False,
+                 **kwargs) -> None:
+        super().__init__(dictionary=dictionary, letter_case=letter_case)
+        assert isinstance(flatten, bool)
+        assert isinstance(reduction, str)
+        assert isinstance(zero_infinity, bool)
+
+        self.flatten = flatten
+        self.ctc_loss = nn.CTCLoss(
+            blank=self.dictionary.padding_idx,
+            reduction=reduction,
+            zero_infinity=zero_infinity)
+
+    def forward(self, outputs: torch.Tensor,
+                data_samples: Sequence[TextRecogDataSample]) -> Dict:
+        """
+        Args:
+            outputs (Tensor): A raw logit tensor of shape :math:`(N, T, C)`.
+            data_samples (list[TextRecogDataSample]): List of
+                ``TextRecogDataSample`` which are processed by ``get_target``.
+
+        Returns:
+            dict: The loss dict with key ``loss_ctc``.
+        """
+        valid_ratios = None
+        if data_samples is not None:
+            valid_ratios = [
+                img_meta.get('valid_ratio', 1.0) for img_meta in data_samples
+            ]
+
+        outputs = torch.log_softmax(outputs, dim=2)
+        bsz, seq_len = outputs.size(0), outputs.size(1)
+        outputs_for_loss = outputs.permute(1, 0, 2).contiguous()  # T * N * C
+        targets = [
+            data_sample.gt_text.indexes[:seq_len]
+            for data_sample in data_samples
+        ]
+        target_lengths = torch.IntTensor([len(t) for t in targets])
+        target_lengths = torch.clamp(target_lengths, max=seq_len).long()
+        input_lengths = torch.full(
+            size=(bsz, ), fill_value=seq_len, dtype=torch.long)
+        if self.flatten:
+            targets = torch.cat(targets)
+        else:
+            padded_targets = torch.full(
+                size=(bsz, seq_len),
+                fill_value=self.dictionary.padding_idx,
+                dtype=torch.long)
+            for idx, valid_len in enumerate(target_lengths):
+                padded_targets[idx, :valid_len] = targets[idx][:valid_len]
+            targets = padded_targets
+
+            if valid_ratios is not None:
+                input_lengths = [
+                    math.ceil(valid_ratio * seq_len)
+                    for valid_ratio in valid_ratios
+                ]
+                input_lengths = torch.Tensor(input_lengths).long()
+        loss_ctc = self.ctc_loss(outputs_for_loss, targets, input_lengths,
+                                 target_lengths)
+        losses = dict(loss_ctc=loss_ctc)
+
+        return losses
+
+    def get_targets(
+        self, data_samples: Sequence[TextRecogDataSample]
+    ) -> Sequence[TextRecogDataSample]:
+        """Target generator.
+
+        Args:
+            data_samples (list[TextRecogDataSample]): It usually includes
+                ``gt_text`` information.
+
+        Returns:
+
+            list[TextRecogDataSample]: updated data_samples. It will add two
+            key in data_sample:
+
+            - indexes (torch.LongTensor): The index corresponding to the item.
+        """
+
+        for data_sample in data_samples:
+            text = data_sample.gt_text.item
+            if self.letter_case in ['upper', 'lower']:
+                text = getattr(text, self.letter_case)()
+            indexes = self.dictionary.str2idx(text)
+            indexes = torch.IntTensor(indexes)
+            data_sample.gt_text.indexes = indexes
+        return data_samples
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/plugins/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/plugins/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..053a33e2d647128fc7dcc60e85aea0b560103984
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/plugins/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .common import GCAModule, Maxpool2d
+
+__all__ = ['Maxpool2d', 'GCAModule']
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/plugins/common.py b/mmocr-dev-1.x/mmocr/models/textrecog/plugins/common.py
new file mode 100644
index 0000000000000000000000000000000000000000..7a6e8c6de712978c571224b9e20ea881d1116211
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/plugins/common.py
@@ -0,0 +1,194 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Tuple, Union
+
+import torch
+import torch.nn as nn
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class Maxpool2d(nn.Module):
+    """A wrapper around nn.Maxpool2d().
+
+    Args:
+        kernel_size (int or tuple(int)): Kernel size for max pooling layer
+        stride (int or tuple(int)): Stride for max pooling layer
+        padding (int or tuple(int)): Padding for pooling layer
+    """
+
+    def __init__(self,
+                 kernel_size: Union[int, Tuple[int]],
+                 stride: Union[int, Tuple[int]],
+                 padding: Union[int, Tuple[int]] = 0,
+                 **kwargs) -> None:
+        super().__init__()
+        self.model = nn.MaxPool2d(kernel_size, stride, padding)
+
+    def forward(self, x) -> torch.Tensor:
+        """Forward function.
+        Args:
+            x (Tensor): Input feature map.
+
+        Returns:
+            Tensor: Output tensor after Maxpooling layer.
+        """
+        return self.model(x)
+
+
+@MODELS.register_module()
+class GCAModule(nn.Module):
+    """GCAModule in MASTER.
+
+    Args:
+        in_channels (int): Channels of input tensor.
+        ratio (float): Scale ratio of in_channels.
+        n_head (int): Numbers of attention head.
+        pooling_type (str): Spatial pooling type. Options are [``avg``,
+            ``att``].
+        scale_attn (bool): Whether to scale the attention map. Defaults to
+            False.
+        fusion_type (str): Fusion type of input and context. Options are
+            [``channel_add``, ``channel_mul``, ``channel_concat``].
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 ratio: float,
+                 n_head: int,
+                 pooling_type: str = 'att',
+                 scale_attn: bool = False,
+                 fusion_type: str = 'channel_add',
+                 **kwargs) -> None:
+        super().__init__()
+
+        assert pooling_type in ['avg', 'att']
+        assert fusion_type in ['channel_add', 'channel_mul', 'channel_concat']
+
+        # in_channels must be divided by headers evenly
+        assert in_channels % n_head == 0 and in_channels >= 8
+
+        self.n_head = n_head
+        self.in_channels = in_channels
+        self.ratio = ratio
+        self.planes = int(in_channels * ratio)
+        self.pooling_type = pooling_type
+        self.fusion_type = fusion_type
+        self.scale_attn = scale_attn
+        self.single_header_inplanes = int(in_channels / n_head)
+
+        if pooling_type == 'att':
+            self.conv_mask = nn.Conv2d(
+                self.single_header_inplanes, 1, kernel_size=1)
+            self.softmax = nn.Softmax(dim=2)
+        else:
+            self.avg_pool = nn.AdaptiveAvgPool2d(1)
+
+        if fusion_type == 'channel_add':
+            self.channel_add_conv = nn.Sequential(
+                nn.Conv2d(self.in_channels, self.planes, kernel_size=1),
+                nn.LayerNorm([self.planes, 1, 1]), nn.ReLU(inplace=True),
+                nn.Conv2d(self.planes, self.in_channels, kernel_size=1))
+        elif fusion_type == 'channel_concat':
+            self.channel_concat_conv = nn.Sequential(
+                nn.Conv2d(self.in_channels, self.planes, kernel_size=1),
+                nn.LayerNorm([self.planes, 1, 1]), nn.ReLU(inplace=True),
+                nn.Conv2d(self.planes, self.in_channels, kernel_size=1))
+            # for concat
+            self.cat_conv = nn.Conv2d(
+                2 * self.in_channels, self.in_channels, kernel_size=1)
+        elif fusion_type == 'channel_mul':
+            self.channel_mul_conv = nn.Sequential(
+                nn.Conv2d(self.in_channels, self.planes, kernel_size=1),
+                nn.LayerNorm([self.planes, 1, 1]), nn.ReLU(inplace=True),
+                nn.Conv2d(self.planes, self.in_channels, kernel_size=1))
+
+    def spatial_pool(self, x: torch.Tensor) -> torch.Tensor:
+        """Spatial pooling function.
+
+        Args:
+            x (Tensor): Input feature map.
+
+        Returns:
+            Tensor: Output tensor after spatial pooling.
+        """
+        batch, channel, height, width = x.size()
+        if self.pooling_type == 'att':
+            # [N*headers, C', H , W] C = headers * C'
+            x = x.view(batch * self.n_head, self.single_header_inplanes,
+                       height, width)
+            input_x = x
+
+            # [N*headers, C', H * W] C = headers * C'
+            input_x = input_x.view(batch * self.n_head,
+                                   self.single_header_inplanes, height * width)
+
+            # [N*headers, 1, C', H * W]
+            input_x = input_x.unsqueeze(1)
+            # [N*headers, 1, H, W]
+            context_mask = self.conv_mask(x)
+            # [N*headers, 1, H * W]
+            context_mask = context_mask.view(batch * self.n_head, 1,
+                                             height * width)
+
+            # scale variance
+            if self.scale_attn and self.n_head > 1:
+                context_mask = context_mask / \
+                               torch.sqrt(self.single_header_inplanes)
+
+            # [N*headers, 1, H * W]
+            context_mask = self.softmax(context_mask)
+
+            # [N*headers, 1, H * W, 1]
+            context_mask = context_mask.unsqueeze(-1)
+            # [N*headers, 1, C', 1] =
+            # [N*headers, 1, C', H * W] * [N*headers, 1, H * W, 1]
+            context = torch.matmul(input_x, context_mask)
+
+            # [N, headers * C', 1, 1]
+            context = context.view(batch,
+                                   self.n_head * self.single_header_inplanes,
+                                   1, 1)
+        else:
+            # [N, C, 1, 1]
+            context = self.avg_pool(x)
+
+        return context
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        """Forward function.
+
+        Args:
+            x (Tensor): Input feature map.
+
+        Returns:
+            Tensor: Output tensor after GCAModule.
+        """
+        # [N, C, 1, 1]
+        context = self.spatial_pool(x)
+        out = x
+
+        if self.fusion_type == 'channel_mul':
+            # [N, C, 1, 1]
+            channel_mul_term = torch.sigmoid(self.channel_mul_conv(context))
+            out = out * channel_mul_term
+        elif self.fusion_type == 'channel_add':
+            # [N, C, 1, 1]
+            channel_add_term = self.channel_add_conv(context)
+            out = out + channel_add_term
+        else:
+            # [N, C, 1, 1]
+            channel_concat_term = self.channel_concat_conv(context)
+
+            # use concat
+            _, C1, _, _ = channel_concat_term.shape
+            N, C2, H, W = out.shape
+
+            out = torch.cat([out,
+                             channel_concat_term.expand(-1, -1, H, W)],
+                            dim=1)
+            out = self.cat_conv(out)
+            out = nn.functional.layer_norm(out, [self.in_channels, H, W])
+            out = nn.functional.relu(out)
+
+        return out
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..14b51daebd7dc398915ea733c7e257fd66313d80
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/__init__.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .attn_postprocessor import AttentionPostprocessor
+from .base import BaseTextRecogPostprocessor
+from .ctc_postprocessor import CTCPostProcessor
+
+__all__ = [
+    'BaseTextRecogPostprocessor', 'AttentionPostprocessor', 'CTCPostProcessor'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/attn_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/attn_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..e047a6a341ca90b874d993c0def6aed9a3af114e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/attn_postprocessor.py
@@ -0,0 +1,43 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Optional, Sequence, Tuple
+
+import torch
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseTextRecogPostprocessor
+
+
+@MODELS.register_module()
+class AttentionPostprocessor(BaseTextRecogPostprocessor):
+    """PostProcessor for seq2seq."""
+
+    def get_single_prediction(
+        self,
+        probs: torch.Tensor,
+        data_sample: Optional[TextRecogDataSample] = None,
+    ) -> Tuple[Sequence[int], Sequence[float]]:
+        """Convert the output probabilities of a single image to index and
+        score.
+
+        Args:
+            probs (torch.Tensor): Character probabilities with shape
+                :math:`(T, C)`.
+            data_sample (TextRecogDataSample, optional): Datasample of an
+                image. Defaults to None.
+
+        Returns:
+            tuple(list[int], list[float]): index and score.
+        """
+        max_value, max_idx = torch.max(probs, -1)
+        index, score = [], []
+        output_index = max_idx.cpu().detach().numpy().tolist()
+        output_score = max_value.cpu().detach().numpy().tolist()
+        for char_index, char_score in zip(output_index, output_score):
+            if char_index in self.ignore_indexes:
+                continue
+            if char_index == self.dictionary.end_idx:
+                break
+            index.append(char_index)
+            score.append(char_score)
+        return index, score
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/base.py b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..818640a8ca572f55e8c819a14c496dd47a6b4e93
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/base.py
@@ -0,0 +1,110 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, Optional, Sequence, Tuple, Union
+
+import mmengine
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import TASK_UTILS
+from mmocr.structures import TextRecogDataSample
+
+
+class BaseTextRecogPostprocessor:
+    """Base text recognition postprocessor.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        max_seq_len (int): max_seq_len (int): Maximum sequence length. The
+            sequence is usually generated from decoder. Defaults to 40.
+        ignore_chars (list[str]): A list of characters to be ignored from the
+            final results. Postprocessor will skip over these characters when
+            converting raw indexes to characters. Apart from single characters,
+            each item can be one of the following reversed keywords: 'padding',
+            'end' and 'unknown', which refer to their corresponding special
+            tokens in the dictionary.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dictionary, Dict],
+                 max_seq_len: int = 40,
+                 ignore_chars: Sequence[str] = ['padding'],
+                 **kwargs) -> None:
+
+        if isinstance(dictionary, dict):
+            self.dictionary = TASK_UTILS.build(dictionary)
+        elif isinstance(dictionary, Dictionary):
+            self.dictionary = dictionary
+        else:
+            raise TypeError(
+                'The type of dictionary should be `Dictionary` or dict, '
+                f'but got {type(dictionary)}')
+        self.max_seq_len = max_seq_len
+
+        mapping_table = {
+            'padding': self.dictionary.padding_idx,
+            'end': self.dictionary.end_idx,
+            'unknown': self.dictionary.unknown_idx,
+        }
+        if not mmengine.is_list_of(ignore_chars, str):
+            raise TypeError('ignore_chars must be list of str')
+        ignore_indexes = list()
+        for ignore_char in ignore_chars:
+            index = mapping_table.get(
+                ignore_char,
+                self.dictionary.char2idx(ignore_char, strict=False))
+            if index is None or (index == self.dictionary.unknown_idx
+                                 and ignore_char != 'unknown'):
+                warnings.warn(
+                    f'{ignore_char} does not exist in the dictionary',
+                    UserWarning)
+                continue
+            ignore_indexes.append(index)
+        self.ignore_indexes = ignore_indexes
+
+    def get_single_prediction(
+        self,
+        probs: torch.Tensor,
+        data_sample: Optional[TextRecogDataSample] = None,
+    ) -> Tuple[Sequence[int], Sequence[float]]:
+        """Convert the output probabilities of a single image to index and
+        score.
+
+        Args:
+           probs (torch.Tensor): Character probabilities with shape
+                :math:`(T, C)`.
+           data_sample (TextRecogDataSample): Datasample of an image.
+
+        Returns:
+            tuple(list[int], list[float]): Index and scores per-character.
+        """
+        raise NotImplementedError
+
+    def __call__(
+        self, probs: torch.Tensor, data_samples: Sequence[TextRecogDataSample]
+    ) -> Sequence[TextRecogDataSample]:
+        """Convert outputs to strings and scores.
+
+        Args:
+            probs (torch.Tensor): Batched character probabilities, the model's
+                softmaxed output in size: :math:`(N, T, C)`.
+            data_samples (list[TextRecogDataSample]): The list of
+                TextRecogDataSample.
+
+        Returns:
+            list(TextRecogDataSample): The list of TextRecogDataSample. It
+            usually contain ``pred_text`` information.
+        """
+        batch_size = probs.size(0)
+
+        for idx in range(batch_size):
+            index, score = self.get_single_prediction(probs[idx, :, :],
+                                                      data_samples[idx])
+            text = self.dictionary.idx2str(index)
+            pred_text = LabelData()
+            pred_text.score = score
+            pred_text.item = text
+            data_samples[idx].pred_text = pred_text
+        return data_samples
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/ctc_postprocessor.py b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/ctc_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..0fa28779abaf64e1d964ae05b4296e81308aab13
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/postprocessors/ctc_postprocessor.py
@@ -0,0 +1,52 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import Sequence, Tuple
+
+import torch
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+from .base import BaseTextRecogPostprocessor
+
+
+# TODO support beam search
+@MODELS.register_module()
+class CTCPostProcessor(BaseTextRecogPostprocessor):
+    """PostProcessor for CTC."""
+
+    def get_single_prediction(self, probs: torch.Tensor,
+                              data_sample: TextRecogDataSample
+                              ) -> Tuple[Sequence[int], Sequence[float]]:
+        """Convert the output probabilities of a single image to index and
+        score.
+
+        Args:
+            probs (torch.Tensor): Character probabilities with shape
+                :math:`(T, C)`.
+            data_sample (TextRecogDataSample): Datasample of an image.
+
+        Returns:
+            tuple(list[int], list[float]): index and score.
+        """
+        feat_len = probs.size(0)
+        max_value, max_idx = torch.max(probs, -1)
+        valid_ratio = data_sample.get('valid_ratio', 1)
+        decode_len = min(feat_len, math.ceil(feat_len * valid_ratio))
+        index = []
+        score = []
+
+        prev_idx = self.dictionary.padding_idx
+        for t in range(decode_len):
+            tmp_value = max_idx[t].item()
+            if tmp_value not in (prev_idx, *self.ignore_indexes):
+                index.append(tmp_value)
+                score.append(max_value[t].item())
+            prev_idx = tmp_value
+        return index, score
+
+    def __call__(
+        self, outputs: torch.Tensor,
+        data_samples: Sequence[TextRecogDataSample]
+    ) -> Sequence[TextRecogDataSample]:
+        outputs = outputs.cpu().detach()
+        return super().__call__(outputs, data_samples)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..15825f25fe22be1eb6d32a1555277d50ad5c5383
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .tps_preprocessor import STN, TPStransform
+
+__all__ = ['TPStransform', 'STN']
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/base.py b/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..a1f138bed0eef9517f3e4b1e9f5e33c382a77292
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/base.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmengine.model import BaseModule
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class BasePreprocessor(BaseModule):
+    """Base Preprocessor class for text recognition."""
+
+    def forward(self, x, **kwargs):
+        return x
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/tps_preprocessor.py b/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/tps_preprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a9e0ccc6b0d077b2e66a3e9d9df944b5f862d86
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/preprocessors/tps_preprocessor.py
@@ -0,0 +1,272 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import itertools
+from typing import Dict, List, Optional, Tuple, Union
+
+import numpy as np
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from mmcv.cnn import ConvModule
+
+from mmocr.registry import MODELS
+from .base import BasePreprocessor
+
+
+class TPStransform(nn.Module):
+    """Implement TPS transform.
+
+    This was partially adapted from https://github.com/ayumiymk/aster.pytorch
+
+    Args:
+        output_image_size (tuple[int, int]): The size of the output image.
+            Defaults to (32, 128).
+        num_control_points (int): The number of control points. Defaults to 20.
+        margins (tuple[float, float]): The margins for control points to the
+            top and down side of the image. Defaults to [0.05, 0.05].
+    """
+
+    def __init__(self,
+                 output_image_size: Tuple[int, int] = (32, 100),
+                 num_control_points: int = 20,
+                 margins: Tuple[float, float] = [0.05, 0.05]) -> None:
+        super().__init__()
+        self.output_image_size = output_image_size
+        self.num_control_points = num_control_points
+        self.margins = margins
+        self.target_height, self.target_width = output_image_size
+
+        # build output control points
+        target_control_points = self._build_output_control_points(
+            num_control_points, margins)
+        N = num_control_points
+
+        # create padded kernel matrix
+        forward_kernel = torch.zeros(N + 3, N + 3)
+        target_control_partial_repr = self._compute_partial_repr(
+            target_control_points, target_control_points)
+        forward_kernel[:N, :N].copy_(target_control_partial_repr)
+        forward_kernel[:N, -3].fill_(1)
+        forward_kernel[-3, :N].fill_(1)
+        forward_kernel[:N, -2:].copy_(target_control_points)
+        forward_kernel[-2:, :N].copy_(target_control_points.transpose(0, 1))
+
+        # compute inverse matrix
+        inverse_kernel = torch.inverse(forward_kernel).contiguous()
+
+        # create target coordinate matrix
+        HW = self.target_height * self.target_width
+        tgt_coord = list(
+            itertools.product(
+                range(self.target_height), range(self.target_width)))
+        tgt_coord = torch.Tensor(tgt_coord)
+        Y, X = tgt_coord.split(1, dim=1)
+        Y = Y / (self.target_height - 1)
+        X = X / (self.target_width - 1)
+        tgt_coord = torch.cat([X, Y], dim=1)
+        tgt_coord_partial_repr = self._compute_partial_repr(
+            tgt_coord, target_control_points)
+        tgt_coord_repr = torch.cat(
+            [tgt_coord_partial_repr,
+             torch.ones(HW, 1), tgt_coord], dim=1)
+
+        # register precomputed matrices
+        self.register_buffer('inverse_kernel', inverse_kernel)
+        self.register_buffer('padding_matrix', torch.zeros(3, 2))
+        self.register_buffer('target_coordinate_repr', tgt_coord_repr)
+        self.register_buffer('target_control_points', target_control_points)
+
+    def forward(self, input: torch.Tensor,
+                source_control_points: torch.Tensor) -> torch.Tensor:
+        """Forward function of the TPS block.
+
+        Args:
+            input (Tensor): The input image.
+            source_control_points (Tensor): The control points of the source
+                image of shape (N, self.num_control_points, 2).
+        Returns:
+            Tensor: The output image after TPS transform.
+        """
+        assert source_control_points.ndimension() == 3
+        assert source_control_points.size(1) == self.num_control_points
+        assert source_control_points.size(2) == 2
+        batch_size = source_control_points.size(0)
+
+        Y = torch.cat([
+            source_control_points,
+            self.padding_matrix.expand(batch_size, 3, 2)
+        ], 1)
+        mapping_matrix = torch.matmul(self.inverse_kernel, Y)
+        source_coordinate = torch.matmul(self.target_coordinate_repr,
+                                         mapping_matrix)
+
+        grid = source_coordinate.view(-1, self.target_height,
+                                      self.target_width, 2)
+        grid = torch.clamp(grid, 0, 1)
+        grid = 2.0 * grid - 1.0
+        output_maps = self._grid_sample(input, grid, canvas=None)
+        return output_maps
+
+    def _grid_sample(self,
+                     input: torch.Tensor,
+                     grid: torch.Tensor,
+                     canvas: Optional[torch.Tensor] = None) -> torch.Tensor:
+        """Sample the input image at the given grid.
+
+        Args:
+            input (Tensor): The input image.
+            grid (Tensor): The grid to sample the input image.
+            canvas (Optional[Tensor]): The canvas to store the output image.
+        Returns:
+            Tensor: The sampled image.
+        """
+        output = F.grid_sample(input, grid, align_corners=True)
+        if canvas is None:
+            return output
+        else:
+            input_mask = input.data.new(input.size()).fill_(1)
+            output_mask = F.grid_sample(input_mask, grid, align_corners=True)
+            padded_output = output * output_mask + canvas * (1 - output_mask)
+            return padded_output
+
+    def _compute_partial_repr(self, input_points: torch.Tensor,
+                              control_points: torch.Tensor) -> torch.Tensor:
+        """Compute the partial representation matrix.
+
+        Args:
+            input_points (Tensor): The input points.
+            control_points (Tensor): The control points.
+        Returns:
+            Tensor: The partial representation matrix.
+        """
+        N = input_points.size(0)
+        M = control_points.size(0)
+        pairwise_diff = input_points.view(N, 1, 2) - control_points.view(
+            1, M, 2)
+        pairwise_diff_square = pairwise_diff * pairwise_diff
+        pairwise_dist = pairwise_diff_square[:, :,
+                                             0] + pairwise_diff_square[:, :, 1]
+        repr_matrix = 0.5 * pairwise_dist * torch.log(pairwise_dist)
+        mask = repr_matrix != repr_matrix
+        repr_matrix.masked_fill_(mask, 0)
+        return repr_matrix
+
+    # output_ctrl_pts are specified, according to our task.
+    def _build_output_control_points(self, num_control_points: torch.Tensor,
+                                     margins: Tuple[float,
+                                                    float]) -> torch.Tensor:
+        """Build the output control points.
+
+        The output points will be fix at
+        top and down side of the image.
+        Args:
+            num_control_points (Tensor): The number of control points.
+            margins (Tuple[float, float]): The margins for control points to
+                the top and down side of the image.
+        Returns:
+            Tensor: The output control points.
+        """
+        margin_x, margin_y = margins
+        num_ctrl_pts_per_side = num_control_points // 2
+        ctrl_pts_x = np.linspace(margin_x, 1.0 - margin_x,
+                                 num_ctrl_pts_per_side)
+        ctrl_pts_y_top = np.ones(num_ctrl_pts_per_side) * margin_y
+        ctrl_pts_y_bottom = np.ones(num_ctrl_pts_per_side) * (1.0 - margin_y)
+        ctrl_pts_top = np.stack([ctrl_pts_x, ctrl_pts_y_top], axis=1)
+        ctrl_pts_bottom = np.stack([ctrl_pts_x, ctrl_pts_y_bottom], axis=1)
+        output_ctrl_pts_arr = np.concatenate([ctrl_pts_top, ctrl_pts_bottom],
+                                             axis=0)
+        output_ctrl_pts = torch.Tensor(output_ctrl_pts_arr)
+        return output_ctrl_pts
+
+
+@MODELS.register_module()
+class STN(BasePreprocessor):
+    """Implement STN module in ASTER: An Attentional Scene Text Recognizer with
+    Flexible Rectification
+    (https://ieeexplore.ieee.org/abstract/document/8395027/)
+
+    Args:
+        in_channels (int): The number of input channels.
+        resized_image_size (Tuple[int, int]): The resized image size. The input
+            image will be downsampled to have a better recitified result.
+        output_image_size: The size of the output image for TPS. Defaults to
+            (32, 100).
+        num_control_points: The number of control points. Defaults to 20.
+        margins: The margins for control points to the top and down side of the
+            image for TPS. Defaults to [0.05, 0.05].
+    """
+
+    def __init__(self,
+                 in_channels: int,
+                 resized_image_size: Tuple[int, int] = (32, 64),
+                 output_image_size: Tuple[int, int] = (32, 100),
+                 num_control_points: int = 20,
+                 margins: Tuple[float, float] = [0.05, 0.05],
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = [
+                     dict(type='Xavier', layer='Conv2d'),
+                     dict(type='Constant', val=1, layer='BatchNorm2d'),
+                 ]):
+        super().__init__(init_cfg=init_cfg)
+        self.resized_image_size = resized_image_size
+        self.num_control_points = num_control_points
+        self.tps = TPStransform(output_image_size, num_control_points, margins)
+        self.stn_convnet = nn.Sequential(
+            ConvModule(in_channels, 32, 3, 1, 1, norm_cfg=dict(type='BN')),
+            nn.MaxPool2d(kernel_size=2, stride=2),
+            ConvModule(32, 64, 3, 1, 1, norm_cfg=dict(type='BN')),
+            nn.MaxPool2d(kernel_size=2, stride=2),
+            ConvModule(64, 128, 3, 1, 1, norm_cfg=dict(type='BN')),
+            nn.MaxPool2d(kernel_size=2, stride=2),
+            ConvModule(128, 256, 3, 1, 1, norm_cfg=dict(type='BN')),
+            nn.MaxPool2d(kernel_size=2, stride=2),
+            ConvModule(256, 256, 3, 1, 1, norm_cfg=dict(type='BN')),
+            nn.MaxPool2d(kernel_size=2, stride=2),
+            ConvModule(256, 256, 3, 1, 1, norm_cfg=dict(type='BN')),
+        )
+
+        self.stn_fc1 = nn.Sequential(
+            nn.Linear(2 * 256, 512), nn.BatchNorm1d(512),
+            nn.ReLU(inplace=True))
+        self.stn_fc2 = nn.Linear(512, num_control_points * 2)
+        self.init_stn(self.stn_fc2)
+
+    def init_stn(self, stn_fc2: nn.Linear) -> None:
+        """Initialize the output linear layer of stn, so that the initial
+        source point will be at the top and down side of the image, which will
+        help to optimize.
+
+        Args:
+            stn_fc2 (nn.Linear): The output linear layer of stn.
+        """
+        margin = 0.01
+        sampling_num_per_side = int(self.num_control_points / 2)
+        ctrl_pts_x = np.linspace(margin, 1. - margin, sampling_num_per_side)
+        ctrl_pts_y_top = np.ones(sampling_num_per_side) * margin
+        ctrl_pts_y_bottom = np.ones(sampling_num_per_side) * (1 - margin)
+        ctrl_pts_top = np.stack([ctrl_pts_x, ctrl_pts_y_top], axis=1)
+        ctrl_pts_bottom = np.stack([ctrl_pts_x, ctrl_pts_y_bottom], axis=1)
+        ctrl_points = np.concatenate([ctrl_pts_top, ctrl_pts_bottom],
+                                     axis=0).astype(np.float32)
+        stn_fc2.weight.data.zero_()
+        stn_fc2.bias.data = torch.Tensor(ctrl_points).view(-1)
+
+    def forward(self, img: torch.Tensor) -> torch.Tensor:
+        """Forward function of STN.
+
+        Args:
+            img (Tensor): The input image tensor.
+
+        Returns:
+            Tensor: The rectified image tensor.
+        """
+        resize_img = F.interpolate(
+            img, self.resized_image_size, mode='bilinear', align_corners=True)
+        points = self.stn_convnet(resize_img)
+        batch_size, _, _, _ = points.size()
+        points = points.view(batch_size, -1)
+        img_feat = self.stn_fc1(points)
+        points = self.stn_fc2(0.1 * img_feat)
+        points = points.view(-1, self.num_control_points, 2)
+
+        transformd_image = self.tps(img, points)
+        return transformd_image
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/__init__.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..f590e60dc695b21da4ed859e25a5dbecc0551601
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/__init__.py
@@ -0,0 +1,20 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .abinet import ABINet
+from .aster import ASTER
+from .base import BaseRecognizer
+from .crnn import CRNN
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+from .encoder_decoder_recognizer_tta import EncoderDecoderRecognizerTTAModel
+from .master import MASTER
+from .nrtr import NRTR
+from .robust_scanner import RobustScanner
+from .sar import SARNet
+from .satrn import SATRN
+from .svtr import SVTR
+from .maerec import MAERec
+
+__all__ = [
+    'BaseRecognizer', 'EncoderDecoderRecognizer', 'CRNN', 'SARNet', 'NRTR',
+    'RobustScanner', 'SATRN', 'ABINet', 'MASTER', 'SVTR', 'ASTER',
+    'EncoderDecoderRecognizerTTAModel', 'MAERec'
+]
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/abinet.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/abinet.py
new file mode 100644
index 0000000000000000000000000000000000000000..f8ee3a5cafd021d6072d33b1648a9722a91bcf10
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/abinet.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class ABINet(EncoderDecoderRecognizer):
+    """Implementation of `Read Like Humans: Autonomous, Bidirectional and
+    Iterative LanguageModeling for Scene Text Recognition.
+
+    <https://arxiv.org/pdf/2103.06495.pdf>`_
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/aster.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/aster.py
new file mode 100644
index 0000000000000000000000000000000000000000..ce6535448af0473fefee4d4289c88df36bf16707
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/aster.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class ASTER(EncoderDecoderRecognizer):
+    """Implement  `ASTER: An Attentional Scene Text Recognizer with Flexible
+    Rectification.
+
+    <https://ieeexplore.ieee.org/abstract/document/8395027/`
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/base.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..41f5aa1da473752824fa639aa7ff91b121f77185
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/base.py
@@ -0,0 +1,120 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import ABCMeta, abstractmethod
+from typing import Union
+
+import torch
+from mmengine.model.base_model import BaseModel
+
+from mmocr.utils import (OptConfigType, OptMultiConfig, OptRecSampleList,
+                         RecForwardResults, RecSampleList)
+
+
+class BaseRecognizer(BaseModel, metaclass=ABCMeta):
+    """Base class for recognizer.
+
+    Args:
+        data_preprocessor (dict or ConfigDict, optional): The pre-process
+            config of :class:`BaseDataPreprocessor`.  it usually includes,
+            ``pad_size_divisor``, ``pad_value``, ``mean`` and ``std``.
+        init_cfg (dict or ConfigDict or List[dict], optional): the config
+            to control the initialization. Defaults to None.
+    """
+
+    def __init__(self,
+                 data_preprocessor: OptConfigType = None,
+                 init_cfg: OptMultiConfig = None):
+        super().__init__(
+            data_preprocessor=data_preprocessor, init_cfg=init_cfg)
+
+    @property
+    def with_backbone(self):
+        """bool: whether the recognizer has a backbone"""
+        return hasattr(self, 'backbone')
+
+    @property
+    def with_encoder(self):
+        """bool: whether the recognizer has an encoder"""
+        return hasattr(self, 'encoder')
+
+    @property
+    def with_preprocessor(self):
+        """bool: whether the recognizer has a preprocessor"""
+        return hasattr(self, 'preprocessor')
+
+    @property
+    def with_decoder(self):
+        """bool: whether the recognizer has a decoder"""
+        return hasattr(self, 'decoder')
+
+    @abstractmethod
+    def extract_feat(self, inputs: torch.Tensor) -> torch.Tensor:
+        """Extract features from images."""
+        pass
+
+    def forward(self,
+                inputs: torch.Tensor,
+                data_samples: OptRecSampleList = None,
+                mode: str = 'tensor',
+                **kwargs) -> RecForwardResults:
+        """The unified entry for a forward process in both training and test.
+
+        The method should accept three modes: "tensor", "predict" and "loss":
+
+        - "tensor": Forward the whole network and return tensor or tuple of
+        tensor without any post-processing, same as a common nn.Module.
+        - "predict": Forward and return the predictions, which are fully
+        processed to a list of :obj:`DetDataSample`.
+        - "loss": Forward and return a dict of losses according to the given
+        inputs and data samples.
+
+        Note that this method doesn't handle neither back propagation nor
+        optimizer updating, which are done in the :meth:`train_step`.
+
+        Args:
+            inputs (torch.Tensor): The input tensor with shape
+                (N, C, ...) in general.
+            data_samples (list[:obj:`DetDataSample`], optional): The
+                annotation data of every samples. Defaults to None.
+            mode (str): Return what kind of value. Defaults to 'tensor'.
+
+        Returns:
+            The return type depends on ``mode``.
+
+            - If ``mode="tensor"``, return a tensor or a tuple of tensor.
+            - If ``mode="predict"``, return a list of :obj:`DetDataSample`.
+            - If ``mode="loss"``, return a dict of tensor.
+        """
+        if mode == 'loss':
+            return self.loss(inputs, data_samples, **kwargs)
+        elif mode == 'predict':
+            return self.predict(inputs, data_samples, **kwargs)
+        elif mode == 'tensor':
+            return self._forward(inputs, data_samples, **kwargs)
+        else:
+            raise RuntimeError(f'Invalid mode "{mode}". '
+                               'Only supports loss, predict and tensor mode')
+
+    @abstractmethod
+    def loss(self, inputs: torch.Tensor, data_samples: RecSampleList,
+             **kwargs) -> Union[dict, tuple]:
+        """Calculate losses from a batch of inputs and data samples."""
+        pass
+
+    @abstractmethod
+    def predict(self, inputs: torch.Tensor, data_samples: RecSampleList,
+                **kwargs) -> RecSampleList:
+        """Predict results from a batch of inputs and data samples with post-
+        processing."""
+        pass
+
+    @abstractmethod
+    def _forward(self,
+                 inputs: torch.Tensor,
+                 data_samples: OptRecSampleList = None,
+                 **kwargs):
+        """Network forward process.
+
+        Usually includes backbone, neck and head forward without any post-
+        processing.
+        """
+        pass
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/crnn.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/crnn.py
new file mode 100644
index 0000000000000000000000000000000000000000..61d6853d10c6fb1909b8b8cde2421b302cd8f52a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/crnn.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class CRNN(EncoderDecoderRecognizer):
+    """CTC-loss based recognizer."""
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/encoder_decoder_recognizer.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/encoder_decoder_recognizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..2696ac70ef3553e867d3be5a2a62b02923d3e3d3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/encoder_decoder_recognizer.py
@@ -0,0 +1,130 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from typing import Dict
+
+import torch
+
+from mmocr.registry import MODELS
+from mmocr.utils.typing_utils import (ConfigType, InitConfigType,
+                                      OptConfigType, OptRecSampleList,
+                                      RecForwardResults, RecSampleList)
+from .base import BaseRecognizer
+
+
+@MODELS.register_module()
+class EncoderDecoderRecognizer(BaseRecognizer):
+    """Base class for encode-decode recognizer.
+
+    Args:
+        preprocessor (dict, optional): Config dict for preprocessor. Defaults
+            to None.
+        backbone (dict, optional): Backbone config. Defaults to None.
+        encoder (dict, optional): Encoder config. If None, the output from
+            backbone will be directly fed into ``decoder``. Defaults to None.
+        decoder (dict, optional): Decoder config. Defaults to None.
+        data_preprocessor (dict, optional): Model preprocessing config
+            for processing the input image data. Keys allowed are
+            ``to_rgb``(bool), ``pad_size_divisor``(int), ``pad_value``(int or
+            float), ``mean``(int or float) and ``std``(int or float).
+            Preprcessing order: 1. to rgb; 2. normalization 3. pad.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 preprocessor: OptConfigType = None,
+                 backbone: OptConfigType = None,
+                 encoder: OptConfigType = None,
+                 decoder: OptConfigType = None,
+                 data_preprocessor: ConfigType = None,
+                 init_cfg: InitConfigType = None) -> None:
+
+        super().__init__(
+            init_cfg=init_cfg, data_preprocessor=data_preprocessor)
+
+        # Preprocessor module, e.g., TPS
+        if preprocessor is not None:
+            self.preprocessor = MODELS.build(preprocessor)
+
+        # Backbone
+        if backbone is not None:
+            self.backbone = MODELS.build(backbone)
+
+        # Encoder module
+        if encoder is not None:
+            self.encoder = MODELS.build(encoder)
+
+        # Decoder module
+        assert decoder is not None
+        self.decoder = MODELS.build(decoder)
+
+    def extract_feat(self, inputs: torch.Tensor) -> torch.Tensor:
+        """Directly extract features from the backbone."""
+        if self.with_preprocessor:
+            inputs = self.preprocessor(inputs)
+        if self.with_backbone:
+            inputs = self.backbone(inputs)
+        return inputs
+
+    def loss(self, inputs: torch.Tensor, data_samples: RecSampleList,
+             **kwargs) -> Dict:
+        """Calculate losses from a batch of inputs and data samples.
+        Args:
+            inputs (tensor): Input images of shape (N, C, H, W).
+                Typically these should be mean centered and std scaled.
+            data_samples (list[TextRecogDataSample]): A list of N
+                datasamples, containing meta information and gold
+                annotations for each of the images.
+
+        Returns:
+            dict[str, tensor]: A dictionary of loss components.
+        """
+        feat = self.extract_feat(inputs)
+        out_enc = None
+        if self.with_encoder:
+            out_enc = self.encoder(feat, data_samples)
+        return self.decoder.loss(feat, out_enc, data_samples)
+
+    def predict(self, inputs: torch.Tensor, data_samples: RecSampleList,
+                **kwargs) -> RecSampleList:
+        """Predict results from a batch of inputs and data samples with post-
+        processing.
+
+        Args:
+            inputs (torch.Tensor): Image input tensor.
+            data_samples (list[TextRecogDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images.
+
+        Returns:
+            list[TextRecogDataSample]:  A list of N datasamples of prediction
+            results. Results are stored in ``pred_text``.
+        """
+        feat = self.extract_feat(inputs)
+        out_enc = None
+        if self.with_encoder:
+            out_enc = self.encoder(feat, data_samples)
+        return self.decoder.predict(feat, out_enc, data_samples)
+
+    def _forward(self,
+                 inputs: torch.Tensor,
+                 data_samples: OptRecSampleList = None,
+                 **kwargs) -> RecForwardResults:
+        """Network forward process. Usually includes backbone, encoder and
+        decoder forward without any post-processing.
+
+         Args:
+            inputs (Tensor): Inputs with shape (N, C, H, W).
+            data_samples (list[TextRecogDataSample]): A list of N
+                datasamples, containing meta information and gold
+                annotations for each of the images.
+
+        Returns:
+            Tensor: A tuple of features from ``decoder`` forward.
+        """
+        feat = self.extract_feat(inputs)
+        out_enc = None
+        if self.with_encoder:
+            out_enc = self.encoder(feat, data_samples)
+        return self.decoder(feat, out_enc, data_samples)
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/encoder_decoder_recognizer_tta.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/encoder_decoder_recognizer_tta.py
new file mode 100644
index 0000000000000000000000000000000000000000..6ee7aa1c464e2d9efefd8d8cd50a3d4cf4c2ed50
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/encoder_decoder_recognizer_tta.py
@@ -0,0 +1,99 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List
+
+import numpy as np
+from mmengine.model import BaseTTAModel
+
+from mmocr.registry import MODELS
+from mmocr.utils.typing_utils import RecSampleList
+
+
+@MODELS.register_module()
+class EncoderDecoderRecognizerTTAModel(BaseTTAModel):
+    """Merge augmented recognition results. It will select the best result
+    according average scores from all augmented results.
+
+    Examples:
+        >>> tta_model = dict(
+        >>>     type='EncoderDecoderRecognizerTTAModel')
+        >>>
+        >>> tta_pipeline = [
+        >>>     dict(
+        >>>         type='LoadImageFromFile',
+        >>>         color_type='grayscale'),
+        >>>     dict(
+        >>>         type='TestTimeAug',
+        >>>         transforms=[
+        >>>             [
+        >>>                 dict(
+        >>>                     type='ConditionApply',
+        >>>                     true_transforms=[
+        >>>                         dict(
+        >>>                             type='ImgAugWrapper',
+        >>>                             args=[dict(cls='Rot90', k=0, keep_size=False)]) # noqa: E501
+        >>>                     ],
+        >>>                     condition="results['img_shape'][1]<results['img_shape'][0]" # noqa: E501
+        >>>                 ),
+        >>>                 dict(
+        >>>                     type='ConditionApply',
+        >>>                     true_transforms=[
+        >>>                         dict(
+        >>>                             type='ImgAugWrapper',
+        >>>                             args=[dict(cls='Rot90', k=1, keep_size=False)]) # noqa: E501
+        >>>                     ],
+        >>>                     condition="results['img_shape'][1]<results['img_shape'][0]" # noqa: E501
+        >>>                 ),
+        >>>                 dict(
+        >>>                     type='ConditionApply',
+        >>>                     true_transforms=[
+        >>>                         dict(
+        >>>                             type='ImgAugWrapper',
+        >>>                             args=[dict(cls='Rot90', k=3, keep_size=False)])
+        >>>                     ],
+        >>>                     condition="results['img_shape'][1]<results['img_shape'][0]"
+        >>>                 ),
+        >>>             ],
+        >>>             [
+        >>>                 dict(
+        >>>                     type='RescaleToHeight',
+        >>>                     height=32,
+        >>>                     min_width=32,
+        >>>                     max_width=None,
+        >>>                     width_divisor=16)
+        >>>             ],
+        >>>             # add loading annotation after ``Resize`` because ground truth
+        >>>             # does not need to do resize data transform
+        >>>             [dict(type='LoadOCRAnnotations', with_text=True)],
+        >>>             [
+        >>>                 dict(
+        >>>                     type='PackTextRecogInputs',
+        >>>                     meta_keys=('img_path', 'ori_shape', 'img_shape',
+        >>>                                'valid_ratio'))
+        >>>             ]
+        >>>         ])
+        >>> ]
+    """
+
+    def merge_preds(self,
+                    data_samples_list: List[RecSampleList]) -> RecSampleList:
+        """Merge predictions of enhanced data to one prediction.
+
+        Args:
+            data_samples_list (List[RecSampleList]): List of predictions of
+                all enhanced data. The shape of data_samples_list is (B, M),
+                where B is the batch size and M is the number of augmented
+                data.
+
+        Returns:
+            RecSampleList: Merged prediction.
+        """
+        predictions = list()
+        for data_samples in data_samples_list:
+            scores = [
+                data_sample.pred_text.score for data_sample in data_samples
+            ]
+            average_scores = np.array(
+                [sum(score) / max(1, len(score)) for score in scores])
+            max_idx = np.argmax(average_scores)
+            predictions.append(data_samples[max_idx])
+        return predictions
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/maerec.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/maerec.py
new file mode 100644
index 0000000000000000000000000000000000000000..6fdbfa246ce0d850a48af435359bbc54699c8ba3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/maerec.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class MAERec(EncoderDecoderRecognizer):
+    """Implementation of MAERec"""
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/master.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/master.py
new file mode 100644
index 0000000000000000000000000000000000000000..dbc059caadeb379e9d9514880187b5ee06367721
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/master.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class MASTER(EncoderDecoderRecognizer):
+    """Implementation of `MASTER <https://arxiv.org/abs/1910.02562>`_"""
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/nrtr.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/nrtr.py
new file mode 100644
index 0000000000000000000000000000000000000000..9c57e02c0f828674cb47abc1b32bd870e6268c62
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/nrtr.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class NRTR(EncoderDecoderRecognizer):
+    """Implementation of `NRTR <https://arxiv.org/pdf/1806.00926.pdf>`_"""
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/robust_scanner.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/robust_scanner.py
new file mode 100644
index 0000000000000000000000000000000000000000..987ac965046ff14a5c6d1299dda3e394c1374a5f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/robust_scanner.py
@@ -0,0 +1,11 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class RobustScanner(EncoderDecoderRecognizer):
+    """Implementation of `RobustScanner.
+
+    <https://arxiv.org/pdf/2007.07542.pdf>
+    """
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/sar.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/sar.py
new file mode 100644
index 0000000000000000000000000000000000000000..8ba8306232b2598416c0149c8baf786338b07ab4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/sar.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class SARNet(EncoderDecoderRecognizer):
+    """Implementation of `SAR <https://arxiv.org/abs/1811.00751>`_"""
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/satrn.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/satrn.py
new file mode 100644
index 0000000000000000000000000000000000000000..9182d8bea829b5453dc8228d842b91c6d9915a9e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/satrn.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class SATRN(EncoderDecoderRecognizer):
+    """Implementation of `SATRN <https://arxiv.org/abs/1910.04396>`_"""
diff --git a/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/svtr.py b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/svtr.py
new file mode 100644
index 0000000000000000000000000000000000000000..6fc42b85d0beea3062e06f16ee3265c0763d32c6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/models/textrecog/recognizers/svtr.py
@@ -0,0 +1,9 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_recognizer import EncoderDecoderRecognizer
+
+
+@MODELS.register_module()
+class SVTR(EncoderDecoderRecognizer):
+    """A PyTorch implementation of : `SVTR: Scene Text Recognition with a
+    Single Visual Model <https://arxiv.org/abs/2205.00159>`_"""
diff --git a/mmocr-dev-1.x/mmocr/registry.py b/mmocr-dev-1.x/mmocr/registry.py
new file mode 100644
index 0000000000000000000000000000000000000000..d1ed33552881316ab4dc151650243456e06e1c4f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/registry.py
@@ -0,0 +1,157 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+"""MMOCR provides 20 registry nodes to support using modules across projects.
+Each node is a child of the root registry in MMEngine.
+
+More details can be found at
+https://mmengine.readthedocs.io/en/latest/tutorials/registry.html.
+"""
+
+from mmengine.registry import DATA_SAMPLERS as MMENGINE_DATA_SAMPLERS
+from mmengine.registry import DATASETS as MMENGINE_DATASETS
+from mmengine.registry import EVALUATOR as MMENGINE_EVALUATOR
+from mmengine.registry import HOOKS as MMENGINE_HOOKS
+from mmengine.registry import LOG_PROCESSORS as MMENGINE_LOG_PROCESSORS
+from mmengine.registry import LOOPS as MMENGINE_LOOPS
+from mmengine.registry import METRICS as MMENGINE_METRICS
+from mmengine.registry import MODEL_WRAPPERS as MMENGINE_MODEL_WRAPPERS
+from mmengine.registry import MODELS as MMENGINE_MODELS
+from mmengine.registry import \
+    OPTIM_WRAPPER_CONSTRUCTORS as MMENGINE_OPTIM_WRAPPER_CONSTRUCTORS
+from mmengine.registry import OPTIM_WRAPPERS as MMENGINE_OPTIM_WRAPPERS
+from mmengine.registry import OPTIMIZERS as MMENGINE_OPTIMIZERS
+from mmengine.registry import PARAM_SCHEDULERS as MMENGINE_PARAM_SCHEDULERS
+from mmengine.registry import \
+    RUNNER_CONSTRUCTORS as MMENGINE_RUNNER_CONSTRUCTORS
+from mmengine.registry import RUNNERS as MMENGINE_RUNNERS
+from mmengine.registry import TASK_UTILS as MMENGINE_TASK_UTILS
+from mmengine.registry import TRANSFORMS as MMENGINE_TRANSFORMS
+from mmengine.registry import VISBACKENDS as MMENGINE_VISBACKENDS
+from mmengine.registry import VISUALIZERS as MMENGINE_VISUALIZERS
+from mmengine.registry import \
+    WEIGHT_INITIALIZERS as MMENGINE_WEIGHT_INITIALIZERS
+from mmengine.registry import Registry
+
+# manage all kinds of runners like `EpochBasedRunner` and `IterBasedRunner`
+RUNNERS = Registry(
+    'runner',
+    parent=MMENGINE_RUNNERS,
+    # TODO: update the location when mmocr has its own runner
+    locations=['mmocr.engine'])
+# manage runner constructors that define how to initialize runners
+RUNNER_CONSTRUCTORS = Registry(
+    'runner constructor',
+    parent=MMENGINE_RUNNER_CONSTRUCTORS,
+    # TODO: update the location when mmocr has its own runner constructor
+    locations=['mmocr.engine'])
+# manage all kinds of loops like `EpochBasedTrainLoop`
+LOOPS = Registry(
+    'loop',
+    parent=MMENGINE_LOOPS,
+    # TODO: update the location when mmocr has its own loop
+    locations=['mmocr.engine'])
+# manage all kinds of hooks like `CheckpointHook`
+HOOKS = Registry(
+    'hook', parent=MMENGINE_HOOKS, locations=['mmocr.engine.hooks'])
+
+# manage data-related modules
+DATASETS = Registry(
+    'dataset', parent=MMENGINE_DATASETS, locations=['mmocr.datasets'])
+DATA_SAMPLERS = Registry(
+    'data sampler',
+    parent=MMENGINE_DATA_SAMPLERS,
+    locations=['mmocr.datasets.samplers'])
+TRANSFORMS = Registry(
+    'transform',
+    parent=MMENGINE_TRANSFORMS,
+    locations=['mmocr.datasets.transforms'])
+
+# manage all kinds of modules inheriting `nn.Module`
+MODELS = Registry('model', parent=MMENGINE_MODELS, locations=['mmocr.models'])
+# manage all kinds of model wrappers like 'MMDistributedDataParallel'
+MODEL_WRAPPERS = Registry(
+    'model wrapper',
+    parent=MMENGINE_MODEL_WRAPPERS,
+    locations=['mmocr.models'])
+# manage all kinds of weight initialization modules like `Uniform`
+WEIGHT_INITIALIZERS = Registry(
+    'weight initializer',
+    parent=MMENGINE_WEIGHT_INITIALIZERS,
+    locations=['mmocr.models'])
+
+# manage all kinds of optimizers like `SGD` and `Adam`
+OPTIMIZERS = Registry(
+    'optimizer',
+    parent=MMENGINE_OPTIMIZERS,
+    # TODO: update the location when mmocr has its own optimizer
+    locations=['mmocr.engine'])
+# manage optimizer wrapper
+OPTIM_WRAPPERS = Registry(
+    'optimizer wrapper',
+    parent=MMENGINE_OPTIM_WRAPPERS,
+    # TODO: update the location when mmocr has its own optimizer wrapper
+    locations=['mmocr.engine'])
+# manage constructors that customize the optimization hyperparameters.
+OPTIM_WRAPPER_CONSTRUCTORS = Registry(
+    'optimizer constructor',
+    parent=MMENGINE_OPTIM_WRAPPER_CONSTRUCTORS,
+    # TODO: update the location when mmocr has its own optimizer constructor
+    locations=['mmocr.engine'])
+# manage all kinds of parameter schedulers like `MultiStepLR`
+PARAM_SCHEDULERS = Registry(
+    'parameter scheduler',
+    parent=MMENGINE_PARAM_SCHEDULERS,
+    # TODO: update the location when mmocr has its own parameter scheduler
+    locations=['mmocr.engine'])
+# manage all kinds of metrics
+METRICS = Registry(
+    'metric', parent=MMENGINE_METRICS, locations=['mmocr.evaluation.metrics'])
+# manage evaluator
+EVALUATOR = Registry(
+    'evaluator',
+    parent=MMENGINE_EVALUATOR,
+    locations=['mmocr.evaluation.evaluator'])
+
+# manage task-specific modules like anchor generators and box coders
+TASK_UTILS = Registry(
+    'task util', parent=MMENGINE_TASK_UTILS, locations=['mmocr.models'])
+
+# manage visualizer
+VISUALIZERS = Registry(
+    'visualizer',
+    parent=MMENGINE_VISUALIZERS,
+    locations=['mmocr.visualization'])
+# manage visualizer backend
+VISBACKENDS = Registry(
+    'visualizer backend',
+    parent=MMENGINE_VISBACKENDS,
+    locations=['mmocr.visualization'])
+
+# manage logprocessor
+LOG_PROCESSORS = Registry(
+    'logger processor',
+    parent=MMENGINE_LOG_PROCESSORS,
+    # TODO: update the location when mmocr has its own log processor
+    locations=['mmocr.engine'])
+# manage data obtainer
+DATA_OBTAINERS = Registry(
+    'data obtainer', locations=['mmocr.datasets.preparers.obtainers'])
+
+# manage data gatherer
+DATA_GATHERERS = Registry(
+    'data gatherer', locations=['mmocr.datasets.preparers.gatherers'])
+
+# manage data parser
+DATA_PARSERS = Registry(
+    'data parser', locations=['mmocr.datasets.preparers.parsers'])
+
+# manage data packer
+DATA_PACKERS = Registry(
+    'data packer', locations=['mmocr.datasets.preparers.packers'])
+
+# manage data dumper
+DATA_DUMPERS = Registry(
+    'data dumper', locations=['mmocr.datasets.preparers.dumpers'])
+
+# manage dataset config generator
+CFG_GENERATORS = Registry(
+    'cfg generator', locations=['mmocr.datasets.preparers.config_generators'])
diff --git a/mmocr-dev-1.x/mmocr/structures/__init__.py b/mmocr-dev-1.x/mmocr/structures/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..2b71ac262a07022d63faee8766a555933793da5e
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/structures/__init__.py
@@ -0,0 +1,10 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .kie_data_sample import KIEDataSample
+from .textdet_data_sample import TextDetDataSample
+from .textrecog_data_sample import TextRecogDataSample
+from .textspotting_data_sample import TextSpottingDataSample
+
+__all__ = [
+    'TextDetDataSample', 'TextRecogDataSample', 'KIEDataSample',
+    'TextSpottingDataSample'
+]
diff --git a/mmocr-dev-1.x/mmocr/structures/kie_data_sample.py b/mmocr-dev-1.x/mmocr/structures/kie_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..c681e5b2fd30a6f8cc52db90a4d3fe70df28fe1a
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/structures/kie_data_sample.py
@@ -0,0 +1,91 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmengine.structures import BaseDataElement, InstanceData
+
+
+class KIEDataSample(BaseDataElement):
+    """A data structure interface of MMOCR. They are used as interfaces between
+    different components.
+
+    The attributes in ``KIEDataSample`` are divided into two parts:
+
+        - ``gt_instances``(InstanceData): Ground truth of instance annotations.
+        - ``pred_instances``(InstanceData): Instances of model predictions.
+
+    Examples:
+         >>> import torch
+         >>> import numpy as np
+         >>> from mmengine.structures import InstanceData
+         >>> from mmocr.data import KIEDataSample
+         >>> # gt_instances
+         >>> data_sample = KIEDataSample()
+         >>> img_meta = dict(img_shape=(800, 1196, 3),
+         ...                 pad_shape=(800, 1216, 3))
+         >>> gt_instances = InstanceData(metainfo=img_meta)
+         >>> gt_instances.bboxes = torch.rand((5, 4))
+         >>> gt_instances.labels = torch.rand((5,))
+         >>> data_sample.gt_instances = gt_instances
+         >>> assert 'img_shape' in data_sample.gt_instances.metainfo_keys()
+         >>> len(data_sample.gt_instances)
+         5
+         >>> print(data_sample)
+         <KIEDataSample(
+             META INFORMATION
+             DATA FIELDS
+             gt_instances: <InstanceData(
+                     META INFORMATION
+                     pad_shape: (800, 1216, 3)
+                     img_shape: (800, 1196, 3)
+                     DATA FIELDS
+                     labels: tensor([0.8533, 0.1550, 0.5433, 0.7294, 0.5098])
+                     bboxes:
+                     tensor([[9.7725e-01, 5.8417e-01, 1.7269e-01, 6.5694e-01],
+                             [1.7894e-01, 5.1780e-01, 7.0590e-01, 4.8589e-01],
+                             [7.0392e-01, 6.6770e-01, 1.7520e-01, 1.4267e-01],
+                             [2.2411e-01, 5.1962e-01, 9.6953e-01, 6.6994e-01],
+                             [4.1338e-01, 2.1165e-01, 2.7239e-04, 6.8477e-01]])
+                 ) at 0x7f21fb1b9190>
+         ) at 0x7f21fb1b9880>
+         >>> # pred_instances
+         >>> pred_instances = InstanceData(metainfo=img_meta)
+         >>> pred_instances.bboxes = torch.rand((5, 4))
+         >>> pred_instances.scores = torch.rand((5,))
+         >>> data_sample = KIEDataSample(pred_instances=pred_instances)
+         >>> assert 'pred_instances' in data_sample
+         >>> data_sample = KIEDataSample()
+         >>> gt_instances_data = dict(
+         ...                        bboxes=torch.rand(2, 4),
+         ...                        labels=torch.rand(2))
+         >>> gt_instances = InstanceData(**gt_instances_data)
+         >>> data_sample.gt_instances = gt_instances
+         >>> assert 'gt_instances' in data_sample
+    """
+
+    @property
+    def gt_instances(self) -> InstanceData:
+        """InstanceData: groundtruth instances."""
+        return self._gt_instances
+
+    @gt_instances.setter
+    def gt_instances(self, value: InstanceData):
+        """gt_instances setter."""
+        self.set_field(value, '_gt_instances', dtype=InstanceData)
+
+    @gt_instances.deleter
+    def gt_instances(self):
+        """gt_instances deleter."""
+        del self._gt_instances
+
+    @property
+    def pred_instances(self) -> InstanceData:
+        """InstanceData: prediction instances."""
+        return self._pred_instances
+
+    @pred_instances.setter
+    def pred_instances(self, value: InstanceData):
+        """pred_instances setter."""
+        self.set_field(value, '_pred_instances', dtype=InstanceData)
+
+    @pred_instances.deleter
+    def pred_instances(self):
+        """pred_instances deleter."""
+        del self._pred_instances
diff --git a/mmocr-dev-1.x/mmocr/structures/textdet_data_sample.py b/mmocr-dev-1.x/mmocr/structures/textdet_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..465967064b7b4038423b56cf7be49497663e7feb
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/structures/textdet_data_sample.py
@@ -0,0 +1,93 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmengine.structures import BaseDataElement, InstanceData
+
+
+class TextDetDataSample(BaseDataElement):
+    """A data structure interface of MMOCR. They are used as interfaces between
+    different components.
+
+    The attributes in ``TextDetDataSample`` are divided into two parts:
+
+        - ``gt_instances``(InstanceData): Ground truth of instance annotations.
+        - ``pred_instances``(InstanceData): Instances of model predictions.
+
+    Examples:
+         >>> import torch
+         >>> import numpy as np
+         >>> from mmengine.structures import InstanceData
+         >>> from mmocr.data import TextDetDataSample
+         >>> # gt_instances
+         >>> data_sample = TextDetDataSample()
+         >>> img_meta = dict(img_shape=(800, 1196, 3),
+         ...                 pad_shape=(800, 1216, 3))
+         >>> gt_instances = InstanceData(metainfo=img_meta)
+         >>> gt_instances.bboxes = torch.rand((5, 4))
+         >>> gt_instances.labels = torch.rand((5,))
+         >>> data_sample.gt_instances = gt_instances
+         >>> assert 'img_shape' in data_sample.gt_instances.metainfo_keys()
+         >>> len(data_sample.gt_instances)
+         5
+         >>> print(data_sample)
+         <TextDetDataSample(
+             META INFORMATION
+             DATA FIELDS
+             gt_instances: <InstanceData(
+                     META INFORMATION
+                     pad_shape: (800, 1216, 3)
+                     img_shape: (800, 1196, 3)
+                     DATA FIELDS
+                     labels: tensor([0.8533, 0.1550, 0.5433, 0.7294, 0.5098])
+                     bboxes:
+                     tensor([[9.7725e-01, 5.8417e-01, 1.7269e-01, 6.5694e-01],
+                             [1.7894e-01, 5.1780e-01, 7.0590e-01, 4.8589e-01],
+                             [7.0392e-01, 6.6770e-01, 1.7520e-01, 1.4267e-01],
+                             [2.2411e-01, 5.1962e-01, 9.6953e-01, 6.6994e-01],
+                             [4.1338e-01, 2.1165e-01, 2.7239e-04, 6.8477e-01]])
+                 ) at 0x7f21fb1b9190>
+         ) at 0x7f21fb1b9880>
+         >>> # pred_instances
+         >>> pred_instances = InstanceData(metainfo=img_meta)
+         >>> pred_instances.bboxes = torch.rand((5, 4))
+         >>> pred_instances.scores = torch.rand((5,))
+         >>> data_sample = TextDetDataSample(pred_instances=pred_instances)
+         >>> assert 'pred_instances' in data_sample
+         >>> data_sample = TextDetDataSample()
+         >>> gt_instances_data = dict(
+         ...                        bboxes=torch.rand(2, 4),
+         ...                        labels=torch.rand(2),
+         ...                        masks=np.random.rand(2, 2, 2))
+         >>> gt_instances = InstanceData(**gt_instances_data)
+         >>> data_sample.gt_instances = gt_instances
+         >>> assert 'gt_instances' in data_sample
+         >>> assert 'masks' in data_sample.gt_instances
+    """
+
+    @property
+    def gt_instances(self) -> InstanceData:
+        """InstanceData: groundtruth instances."""
+        return self._gt_instances
+
+    @gt_instances.setter
+    def gt_instances(self, value: InstanceData):
+        """gt_instances setter."""
+        self.set_field(value, '_gt_instances', dtype=InstanceData)
+
+    @gt_instances.deleter
+    def gt_instances(self):
+        """gt_instances deleter."""
+        del self._gt_instances
+
+    @property
+    def pred_instances(self) -> InstanceData:
+        """InstanceData: prediction instances."""
+        return self._pred_instances
+
+    @pred_instances.setter
+    def pred_instances(self, value: InstanceData):
+        """pred_instances setter."""
+        self.set_field(value, '_pred_instances', dtype=InstanceData)
+
+    @pred_instances.deleter
+    def pred_instances(self):
+        """pred_instances deleter."""
+        del self._pred_instances
diff --git a/mmocr-dev-1.x/mmocr/structures/textrecog_data_sample.py b/mmocr-dev-1.x/mmocr/structures/textrecog_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..f40572b0282dd82d1bc67734dcfe52c0073fe5d4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/structures/textrecog_data_sample.py
@@ -0,0 +1,82 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmengine.structures import BaseDataElement, LabelData
+
+
+class TextRecogDataSample(BaseDataElement):
+    """A data structure interface of MMOCR for text recognition. They are used
+    as interfaces between different components.
+
+    The attributes in ``TextRecogDataSample`` are divided into two parts:
+
+        - ``gt_text``(LabelData): Ground truth text.
+        - ``pred_text``(LabelData): predictions text.
+
+    Examples:
+         >>> import torch
+         >>> import numpy as np
+         >>> from mmengine.structures import LabelData
+         >>> from mmocr.data import TextRecogDataSample
+         >>> # gt_text
+         >>> data_sample = TextRecogDataSample()
+         >>> img_meta = dict(img_shape=(800, 1196, 3),
+         ...                 pad_shape=(800, 1216, 3))
+         >>> gt_text = LabelData(metainfo=img_meta)
+         >>> gt_text.item = 'mmocr'
+         >>> data_sample.gt_text = gt_text
+         >>> assert 'img_shape' in data_sample.gt_text.metainfo_keys()
+         >>> print(data_sample)
+         <TextRecogDataSample(
+             META INFORMATION
+             DATA FIELDS
+             gt_text: <LabelData(
+                     META INFORMATION
+                     pad_shape: (800, 1216, 3)
+                     img_shape: (800, 1196, 3)
+                     DATA FIELDS
+                     item: 'mmocr'
+                 ) at 0x7f21fb1b9190>
+         ) at 0x7f21fb1b9880>
+         >>> # pred_text
+         >>> pred_text = LabelData(metainfo=img_meta)
+         >>> pred_text.item = 'mmocr'
+         >>> data_sample = TextRecogDataSample(pred_text=pred_text)
+         >>> assert 'pred_text' in data_sample
+         >>> data_sample = TextRecogDataSample()
+         >>> gt_text_data = dict(item='mmocr')
+         >>> gt_text = LabelData(**gt_text_data)
+         >>> data_sample.gt_text = gt_text
+         >>> assert 'gt_text' in data_sample
+         >>> assert 'item' in data_sample.gt_text
+    """
+
+    @property
+    def gt_text(self) -> LabelData:
+        """LabelData: ground truth text.
+        """
+        return self._gt_text
+
+    @gt_text.setter
+    def gt_text(self, value: LabelData) -> None:
+        """gt_text setter."""
+        self.set_field(value, '_gt_text', dtype=LabelData)
+
+    @gt_text.deleter
+    def gt_text(self) -> None:
+        """gt_text deleter."""
+        del self._gt_text
+
+    @property
+    def pred_text(self) -> LabelData:
+        """LabelData: prediction text.
+        """
+        return self._pred_text
+
+    @pred_text.setter
+    def pred_text(self, value: LabelData) -> None:
+        """pred_text setter."""
+        self.set_field(value, '_pred_text', dtype=LabelData)
+
+    @pred_text.deleter
+    def pred_text(self) -> None:
+        """pred_text deleter."""
+        del self._pred_text
diff --git a/mmocr-dev-1.x/mmocr/structures/textspotting_data_sample.py b/mmocr-dev-1.x/mmocr/structures/textspotting_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..28478f516f96651d2e49c180cea4a97336fc5c97
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/structures/textspotting_data_sample.py
@@ -0,0 +1,64 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.structures import TextDetDataSample
+
+
+class TextSpottingDataSample(TextDetDataSample):
+    """A data structure interface of MMOCR. They are used as interfaces between
+    different components.
+
+    The attributes in ``TextSpottingDataSample`` are divided into two parts:
+
+        - ``gt_instances``(InstanceData): Ground truth of instance annotations.
+        - ``pred_instances``(InstanceData): Instances of model predictions.
+
+    Examples:
+         >>> import torch
+         >>> import numpy as np
+         >>> from mmengine.structures import InstanceData
+         >>> from mmocr.data import TextSpottingDataSample
+         >>> # gt_instances
+         >>> data_sample = TextSpottingDataSample()
+         >>> img_meta = dict(img_shape=(800, 1196, 3),
+         ...                 pad_shape=(800, 1216, 3))
+         >>> gt_instances = InstanceData(metainfo=img_meta)
+         >>> gt_instances.bboxes = torch.rand((5, 4))
+         >>> gt_instances.labels = torch.rand((5,))
+         >>> data_sample.gt_instances = gt_instances
+         >>> assert 'img_shape' in data_sample.gt_instances.metainfo_keys()
+         >>> len(data_sample.gt_instances)
+         5
+         >>> print(data_sample)
+         <TextSpottingDataSample(
+             META INFORMATION
+             DATA FIELDS
+             gt_instances: <InstanceData(
+                     META INFORMATION
+                     pad_shape: (800, 1216, 3)
+                     img_shape: (800, 1196, 3)
+                     DATA FIELDS
+                     labels: tensor([0.8533, 0.1550, 0.5433, 0.7294, 0.5098])
+                     bboxes:
+                     tensor([[9.7725e-01, 5.8417e-01, 1.7269e-01, 6.5694e-01],
+                             [1.7894e-01, 5.1780e-01, 7.0590e-01, 4.8589e-01],
+                             [7.0392e-01, 6.6770e-01, 1.7520e-01, 1.4267e-01],
+                             [2.2411e-01, 5.1962e-01, 9.6953e-01, 6.6994e-01],
+                             [4.1338e-01, 2.1165e-01, 2.7239e-04, 6.8477e-01]])
+                 ) at 0x7f21fb1b9190>
+         ) at 0x7f21fb1b9880>
+         >>> # pred_instances
+         >>> pred_instances = InstanceData(metainfo=img_meta)
+         >>> pred_instances.bboxes = torch.rand((5, 4))
+         >>> pred_instances.scores = torch.rand((5,))
+         >>> data_sample = TextSpottingDataSample(
+         ...                   pred_instances=pred_instances)
+         >>> assert 'pred_instances' in data_sample
+         >>> data_sample = TextSpottingDataSample()
+         >>> gt_instances_data = dict(
+         ...                        bboxes=torch.rand(2, 4),
+         ...                        labels=torch.rand(2),
+         ...                        masks=np.random.rand(2, 2, 2))
+         >>> gt_instances = InstanceData(**gt_instances_data)
+         >>> data_sample.gt_instances = gt_instances
+         >>> assert 'gt_instances' in data_sample
+         >>> assert 'masks' in data_sample.gt_instances
+    """
diff --git a/mmocr-dev-1.x/mmocr/testing/__init__.py b/mmocr-dev-1.x/mmocr/testing/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..3000419b8fd971c4b05d87893e4d23df7459caf8
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/testing/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .data import create_dummy_dict_file, create_dummy_textdet_inputs
+
+__all__ = ['create_dummy_dict_file', 'create_dummy_textdet_inputs']
diff --git a/mmocr-dev-1.x/mmocr/testing/data.py b/mmocr-dev-1.x/mmocr/testing/data.py
new file mode 100644
index 0000000000000000000000000000000000000000..fc0b4d2cddcda3e9200855853e58a8d2213c4194
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/testing/data.py
@@ -0,0 +1,110 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Any, Dict, List, Optional, Sequence
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.structures import TextDetDataSample
+
+
+def create_dummy_textdet_inputs(input_shape: Sequence[int] = (1, 3, 300, 300),
+                                num_items: Optional[Sequence[int]] = None
+                                ) -> Dict[str, Any]:
+    """Create dummy inputs to test text detectors.
+
+    Args:
+        input_shape (tuple(int)): 4-d shape of the input image. Defaults to
+            (1, 3, 300, 300).
+        num_items (list[int], optional): Number of bboxes to create for each
+            image. If None, they will be randomly generated. Defaults to None.
+
+    Returns:
+        Dict[str, Any]: A dictionary of demo inputs.
+    """
+    (N, C, H, W) = input_shape
+
+    rng = np.random.RandomState(0)
+
+    imgs = rng.rand(*input_shape)
+
+    metainfo = dict(
+        img_shape=(H, W, C),
+        ori_shape=(H, W, C),
+        pad_shape=(H, W, C),
+        filename='test.jpg',
+        scale_factor=(1, 1),
+        flip=False)
+
+    gt_masks = []
+    gt_kernels = []
+    gt_effective_mask = []
+
+    data_samples = []
+
+    for batch_idx in range(N):
+        if num_items is None:
+            num_boxes = rng.randint(1, 10)
+        else:
+            num_boxes = num_items[batch_idx]
+
+        data_sample = TextDetDataSample(
+            metainfo=metainfo, gt_instances=InstanceData())
+
+        cx, cy, bw, bh = rng.rand(num_boxes, 4).T
+
+        tl_x = ((cx * W) - (W * bw / 2)).clip(0, W)
+        tl_y = ((cy * H) - (H * bh / 2)).clip(0, H)
+        br_x = ((cx * W) + (W * bw / 2)).clip(0, W)
+        br_y = ((cy * H) + (H * bh / 2)).clip(0, H)
+
+        boxes = np.vstack([tl_x, tl_y, br_x, br_y]).T
+        class_idxs = [0] * num_boxes
+
+        data_sample.gt_instances.bboxes = torch.FloatTensor(boxes)
+        data_sample.gt_instances.labels = torch.LongTensor(class_idxs)
+        data_sample.gt_instances.ignored = torch.BoolTensor([False] *
+                                                            num_boxes)
+        data_samples.append(data_sample)
+
+        # kernels = []
+        # TODO: add support for multiple kernels (if necessary)
+        # for _ in range(num_kernels):
+        #     kernel = np.random.rand(H, W)
+        #     kernels.append(kernel)
+        gt_kernels.append(np.random.rand(H, W))
+        gt_effective_mask.append(np.ones((H, W)))
+
+    mask = np.random.randint(0, 2, (len(boxes), H, W), dtype=np.uint8)
+    gt_masks.append(mask)
+
+    mm_inputs = {
+        'imgs': torch.FloatTensor(imgs).requires_grad_(True),
+        'data_samples': data_samples,
+        'gt_masks': gt_masks,
+        'gt_kernels': gt_kernels,
+        'gt_mask': gt_effective_mask,
+        'gt_thr_mask': gt_effective_mask,
+        'gt_text_mask': gt_effective_mask,
+        'gt_center_region_mask': gt_effective_mask,
+        'gt_radius_map': gt_kernels,
+        'gt_sin_map': gt_kernels,
+        'gt_cos_map': gt_kernels,
+    }
+    return mm_inputs
+
+
+def create_dummy_dict_file(
+    dict_file: str,
+    chars: List[str] = list('0123456789abcdefghijklmnopqrstuvwxyz')
+) -> None:  # NOQA
+    """Create a dummy dictionary file.
+
+    Args:
+        dict_file (str): Path to the dummy dictionary file.
+        chars (list[str]): List of characters in dictionary. Defaults to
+            ``list('0123456789abcdefghijklmnopqrstuvwxyz')``.
+    """
+    with open(dict_file, 'w') as f:
+        for char in chars:
+            f.write(char + '\n')
diff --git a/mmocr-dev-1.x/mmocr/utils/__init__.py b/mmocr-dev-1.x/mmocr/utils/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..3e4fb6fb22fec6e35eb563547ff03b50354f4f2f
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/__init__.py
@@ -0,0 +1,54 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .bbox_utils import (bbox2poly, bbox_center_distance, bbox_diag_distance,
+                         bezier2polygon, is_on_same_line, rescale_bbox,
+                         rescale_bboxes, stitch_boxes_into_lines)
+from .bezier_utils import bezier2poly, poly2bezier
+from .check_argument import (equal_len, is_2dlist, is_3dlist, is_none_or_type,
+                             is_type_list, valid_boundary)
+from .collect_env import collect_env
+from .data_converter_utils import dump_ocr_data, recog_anno_to_imginfo
+from .fileio import (check_integrity, get_md5, is_archive, list_files,
+                     list_from_file, list_to_file)
+from .img_utils import crop_img, warp_img
+from .mask_utils import fill_hole
+from .parsers import LineJsonParser, LineStrParser
+from .point_utils import point_distance, points_center
+from .polygon_utils import (boundary_iou, crop_polygon, is_poly_inside_rect,
+                            offset_polygon, poly2bbox, poly2shapely,
+                            poly_intersection, poly_iou, poly_make_valid,
+                            poly_union, polys2shapely, rescale_polygon,
+                            rescale_polygons, shapely2poly, sort_points,
+                            sort_vertex, sort_vertex8)
+from .processing import track_parallel_progress_multi_args
+from .setup_env import register_all_modules
+from .string_utils import StringStripper
+from .transform_utils import remove_pipeline_elements
+from .typing_utils import (ColorType, ConfigType, DetSampleList,
+                           InitConfigType, InstanceList, KIESampleList,
+                           LabelList, MultiConfig, OptConfigType,
+                           OptDetSampleList, OptInitConfigType,
+                           OptInstanceList, OptKIESampleList, OptLabelList,
+                           OptMultiConfig, OptRecSampleList, OptTensor,
+                           RangeType, RecForwardResults, RecSampleList)
+
+__all__ = [
+    'collect_env', 'is_3dlist', 'is_type_list', 'is_none_or_type', 'equal_len',
+    'is_2dlist', 'valid_boundary', 'list_to_file', 'list_from_file',
+    'is_on_same_line', 'stitch_boxes_into_lines', 'StringStripper',
+    'bezier2polygon', 'sort_points', 'dump_ocr_data', 'recog_anno_to_imginfo',
+    'rescale_polygons', 'rescale_polygon', 'rescale_bbox', 'rescale_bboxes',
+    'bbox2poly', 'crop_polygon', 'is_poly_inside_rect', 'poly2bbox',
+    'poly_intersection', 'poly_iou', 'poly_make_valid', 'poly_union',
+    'poly2shapely', 'polys2shapely', 'register_all_modules', 'offset_polygon',
+    'sort_vertex8', 'sort_vertex', 'bbox_center_distance',
+    'bbox_diag_distance', 'boundary_iou', 'point_distance', 'points_center',
+    'fill_hole', 'LineJsonParser', 'LineStrParser', 'shapely2poly', 'crop_img',
+    'warp_img', 'ConfigType', 'DetSampleList', 'RecForwardResults',
+    'InitConfigType', 'OptConfigType', 'OptDetSampleList', 'OptInitConfigType',
+    'OptMultiConfig', 'OptRecSampleList', 'RecSampleList', 'MultiConfig',
+    'OptTensor', 'ColorType', 'OptKIESampleList', 'KIESampleList',
+    'is_archive', 'check_integrity', 'list_files', 'get_md5', 'InstanceList',
+    'LabelList', 'OptInstanceList', 'OptLabelList', 'RangeType',
+    'remove_pipeline_elements', 'bezier2poly', 'poly2bezier',
+    'track_parallel_progress_multi_args'
+]
diff --git a/mmocr-dev-1.x/mmocr/utils/bbox_utils.py b/mmocr-dev-1.x/mmocr/utils/bbox_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..a91df91d79916c151c399b0489ae4662f6149ee7
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/bbox_utils.py
@@ -0,0 +1,368 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List, Tuple
+
+import numpy as np
+from shapely.geometry import LineString, Point
+
+from mmocr.utils.check_argument import is_type_list
+from mmocr.utils.point_utils import point_distance, points_center
+from mmocr.utils.typing_utils import ArrayLike
+
+
+def rescale_bbox(bbox: np.ndarray,
+                 scale_factor: Tuple[int, int],
+                 mode: str = 'mul') -> np.ndarray:
+    """Rescale a bounding box according to scale_factor.
+
+    The behavior is different depending on the mode. When mode is 'mul', the
+    coordinates will be multiplied by scale_factor, which is usually used in
+    preprocessing transforms such as :func:`Resize`.
+    The coordinates will be divided by scale_factor if mode is 'div'. It can be
+    used in postprocessors to recover the bbox in the original image size.
+
+    Args:
+        bbox (ndarray): A bounding box [x1, y1, x2, y2].
+        scale_factor (tuple(int, int)): (w_scale, h_scale).
+        model (str): Rescale mode. Can be 'mul' or 'div'. Defaults to 'mul'.
+
+    Returns:
+        np.ndarray: Rescaled bbox.
+    """
+    assert mode in ['mul', 'div']
+    bbox = np.array(bbox, dtype=np.float32)
+    bbox_shape = bbox.shape
+    reshape_bbox = bbox.reshape(-1, 2)
+    scale_factor = np.array(scale_factor, dtype=float)
+    if mode == 'div':
+        scale_factor = 1 / scale_factor
+    bbox = (reshape_bbox * scale_factor[None]).reshape(bbox_shape)
+    return bbox
+
+
+def rescale_bboxes(bboxes: np.ndarray,
+                   scale_factor: Tuple[int, int],
+                   mode: str = 'mul') -> np.ndarray:
+    """Rescale bboxes according to scale_factor.
+
+    The behavior is different depending on the mode. When mode is 'mul', the
+    coordinates will be multiplied by scale_factor, which is usually used in
+    preprocessing transforms such as :func:`Resize`.
+    The coordinates will be divided by scale_factor if mode is 'div'. It can be
+    used in postprocessors to recover the bboxes in the original
+    image size.
+
+    Args:
+        bboxes (np.ndarray]): Bounding bboxes in shape (N, 4)
+        scale_factor (tuple(int, int)): (w_scale, h_scale).
+        model (str): Rescale mode. Can be 'mul' or 'div'. Defaults to 'mul'.
+
+    Returns:
+        list[np.ndarray]: Rescaled bboxes.
+    """
+    bboxes = rescale_bbox(bboxes, scale_factor, mode)
+    return bboxes
+
+
+def bbox2poly(bbox: ArrayLike, mode: str = 'xyxy') -> np.array:
+    """Converting a bounding box to a polygon.
+
+    Args:
+        bbox (ArrayLike): A bbox. In any form can be accessed by 1-D indices.
+         E.g. list[float], np.ndarray, or torch.Tensor. bbox is written in
+            [x1, y1, x2, y2].
+        mode (str): Specify the format of bbox. Can be 'xyxy' or 'xywh'.
+            Defaults to 'xyxy'.
+
+    Returns:
+        np.array: The converted polygon [x1, y1, x2, y1, x2, y2, x1, y2].
+    """
+    assert len(bbox) == 4
+    if mode == 'xyxy':
+        x1, y1, x2, y2 = bbox
+        poly = np.array([x1, y1, x2, y1, x2, y2, x1, y2])
+    elif mode == 'xywh':
+        x, y, w, h = bbox
+        poly = np.array([x, y, x + w, y, x + w, y + h, x, y + h])
+    else:
+        raise NotImplementedError('Not supported mode.')
+
+    return poly
+
+
+def is_on_same_line(box_a, box_b, min_y_overlap_ratio=0.8):
+    # TODO Check if it should be deleted after ocr.py refactored
+    """Check if two boxes are on the same line by their y-axis coordinates.
+
+    Two boxes are on the same line if they overlap vertically, and the length
+    of the overlapping line segment is greater than min_y_overlap_ratio * the
+    height of either of the boxes.
+
+    Args:
+        box_a (list), box_b (list): Two bounding boxes to be checked
+        min_y_overlap_ratio (float): The minimum vertical overlapping ratio
+                                    allowed for boxes in the same line
+
+    Returns:
+        The bool flag indicating if they are on the same line
+    """
+    a_y_min = np.min(box_a[1::2])
+    b_y_min = np.min(box_b[1::2])
+    a_y_max = np.max(box_a[1::2])
+    b_y_max = np.max(box_b[1::2])
+
+    # Make sure that box a is always the box above another
+    if a_y_min > b_y_min:
+        a_y_min, b_y_min = b_y_min, a_y_min
+        a_y_max, b_y_max = b_y_max, a_y_max
+
+    if b_y_min <= a_y_max:
+        if min_y_overlap_ratio is not None:
+            sorted_y = sorted([b_y_min, b_y_max, a_y_max])
+            overlap = sorted_y[1] - sorted_y[0]
+            min_a_overlap = (a_y_max - a_y_min) * min_y_overlap_ratio
+            min_b_overlap = (b_y_max - b_y_min) * min_y_overlap_ratio
+            return overlap >= min_a_overlap or \
+                overlap >= min_b_overlap
+        else:
+            return True
+    return False
+
+
+def stitch_boxes_into_lines(boxes, max_x_dist=10, min_y_overlap_ratio=0.8):
+    # TODO Check if it should be deleted after ocr.py refactored
+    """Stitch fragmented boxes of words into lines.
+
+    Note: part of its logic is inspired by @Johndirr
+    (https://github.com/faustomorales/keras-ocr/issues/22)
+
+    Args:
+        boxes (list): List of ocr results to be stitched
+        max_x_dist (int): The maximum horizontal distance between the closest
+                    edges of neighboring boxes in the same line
+        min_y_overlap_ratio (float): The minimum vertical overlapping ratio
+                    allowed for any pairs of neighboring boxes in the same line
+
+    Returns:
+        merged_boxes(list[dict]): List of merged boxes and texts
+    """
+
+    if len(boxes) <= 1:
+        return boxes
+
+    merged_boxes = []
+
+    # sort groups based on the x_min coordinate of boxes
+    x_sorted_boxes = sorted(boxes, key=lambda x: np.min(x['box'][::2]))
+    # store indexes of boxes which are already parts of other lines
+    skip_idxs = set()
+
+    i = 0
+    # locate lines of boxes starting from the leftmost one
+    for i in range(len(x_sorted_boxes)):
+        if i in skip_idxs:
+            continue
+        # the rightmost box in the current line
+        rightmost_box_idx = i
+        line = [rightmost_box_idx]
+        for j in range(i + 1, len(x_sorted_boxes)):
+            if j in skip_idxs:
+                continue
+            if is_on_same_line(x_sorted_boxes[rightmost_box_idx]['box'],
+                               x_sorted_boxes[j]['box'], min_y_overlap_ratio):
+                line.append(j)
+                skip_idxs.add(j)
+                rightmost_box_idx = j
+
+        # split line into lines if the distance between two neighboring
+        # sub-lines' is greater than max_x_dist
+        lines = []
+        line_idx = 0
+        lines.append([line[0]])
+        rightmost = np.max(x_sorted_boxes[line[0]]['box'][::2])
+        for k in range(1, len(line)):
+            curr_box = x_sorted_boxes[line[k]]
+            dist = np.min(curr_box['box'][::2]) - rightmost
+            if dist > max_x_dist:
+                line_idx += 1
+                lines.append([])
+            lines[line_idx].append(line[k])
+            rightmost = max(rightmost, np.max(curr_box['box'][::2]))
+
+        # Get merged boxes
+        for box_group in lines:
+            merged_box = {}
+            merged_box['text'] = ' '.join(
+                [x_sorted_boxes[idx]['text'] for idx in box_group])
+            x_min, y_min = float('inf'), float('inf')
+            x_max, y_max = float('-inf'), float('-inf')
+            for idx in box_group:
+                x_max = max(np.max(x_sorted_boxes[idx]['box'][::2]), x_max)
+                x_min = min(np.min(x_sorted_boxes[idx]['box'][::2]), x_min)
+                y_max = max(np.max(x_sorted_boxes[idx]['box'][1::2]), y_max)
+                y_min = min(np.min(x_sorted_boxes[idx]['box'][1::2]), y_min)
+            merged_box['box'] = [
+                x_min, y_min, x_max, y_min, x_max, y_max, x_min, y_max
+            ]
+            merged_boxes.append(merged_box)
+
+    return merged_boxes
+
+
+def bezier2polygon(bezier_points: np.ndarray,
+                   num_sample: int = 20) -> List[np.ndarray]:
+    # TODO check test later
+    """Sample points from the boundary of a polygon enclosed by two Bezier
+    curves, which are controlled by ``bezier_points``.
+
+    Args:
+        bezier_points (ndarray): A :math:`(2, 4, 2)` array of 8 Bezeir points
+            or its equalivance. The first 4 points control the curve at one
+            side and the last four control the other side.
+        num_sample (int): The number of sample points at each Bezeir curve.
+            Defaults to 20.
+
+    Returns:
+        list[ndarray]: A list of 2*num_sample points representing the polygon
+        extracted from Bezier curves.
+
+    Warning:
+        The points are not guaranteed to be ordered. Please use
+        :func:`mmocr.utils.sort_points` to sort points if necessary.
+    """
+    assert num_sample > 0, 'The sampling number should greater than 0'
+
+    bezier_points = np.asarray(bezier_points)
+    assert np.prod(
+        bezier_points.shape) == 16, 'Need 8 Bezier control points to continue!'
+
+    bezier = bezier_points.reshape(2, 4, 2).transpose(0, 2, 1).reshape(4, 4)
+    u = np.linspace(0, 1, num_sample)
+
+    points = np.outer((1 - u) ** 3, bezier[:, 0]) \
+        + np.outer(3 * u * ((1 - u) ** 2), bezier[:, 1]) \
+        + np.outer(3 * (u ** 2) * (1 - u), bezier[:, 2]) \
+        + np.outer(u ** 3, bezier[:, 3])
+
+    # Convert points to polygon
+    points = np.concatenate((points[:, :2], points[:, 2:]), axis=0)
+    return points.tolist()
+
+
+def sort_vertex(points_x, points_y):
+    # TODO Add typehints & docstring & test
+    """Sort box vertices in clockwise order from left-top first.
+
+    Args:
+        points_x (list[float]): x of four vertices.
+        points_y (list[float]): y of four vertices.
+    Returns:
+        sorted_points_x (list[float]): x of sorted four vertices.
+        sorted_points_y (list[float]): y of sorted four vertices.
+    """
+    assert is_type_list(points_x, (float, int))
+    assert is_type_list(points_y, (float, int))
+    assert len(points_x) == 4
+    assert len(points_y) == 4
+    vertices = np.stack((points_x, points_y), axis=-1).astype(np.float32)
+    vertices = _sort_vertex(vertices)
+    sorted_points_x = list(vertices[:, 0])
+    sorted_points_y = list(vertices[:, 1])
+    return sorted_points_x, sorted_points_y
+
+
+def _sort_vertex(vertices):
+    # TODO Add typehints & docstring & test
+    assert vertices.ndim == 2
+    assert vertices.shape[-1] == 2
+    N = vertices.shape[0]
+    if N == 0:
+        return vertices
+
+    center = np.mean(vertices, axis=0)
+    directions = vertices - center
+    angles = np.arctan2(directions[:, 1], directions[:, 0])
+    sort_idx = np.argsort(angles)
+    vertices = vertices[sort_idx]
+
+    left_top = np.min(vertices, axis=0)
+    dists = np.linalg.norm(left_top - vertices, axis=-1, ord=2)
+    lefttop_idx = np.argmin(dists)
+    indexes = (np.arange(N, dtype=np.int_) + lefttop_idx) % N
+    return vertices[indexes]
+
+
+def sort_vertex8(points):
+    # TODO Add typehints & docstring & test
+    """Sort vertex with 8 points [x1 y1 x2 y2 x3 y3 x4 y4]"""
+    assert len(points) == 8
+    vertices = _sort_vertex(np.array(points, dtype=np.float32).reshape(-1, 2))
+    sorted_box = list(vertices.flatten())
+    return sorted_box
+
+
+def bbox_center_distance(box1: ArrayLike, box2: ArrayLike) -> float:
+    """Calculate the distance between the center points of two bounding boxes.
+
+    Args:
+        box1 (ArrayLike): The first bounding box
+            represented in [x1, y1, x2, y2].
+        box2 (ArrayLike): The second bounding box
+            represented in [x1, y1, x2, y2].
+
+    Returns:
+        float: The distance between the center points of two bounding boxes.
+    """
+    return point_distance(points_center(box1), points_center(box2))
+
+
+def bbox_diag_distance(box: ArrayLike) -> float:
+    """Calculate the diagonal length of a bounding box (distance between the
+    top-left and bottom-right).
+
+    Args:
+        box (ArrayLike): The bounding box represented in
+        [x1, y1, x2, y2, x3, y3, x4, y4] or [x1, y1, x2, y2].
+
+    Returns:
+        float: The diagonal length of the bounding box.
+    """
+    box = np.array(box, dtype=np.float32)
+    assert (box.size == 8 or box.size == 4)
+
+    if box.size == 8:
+        diag = point_distance(box[0:2], box[4:6])
+    elif box.size == 4:
+        diag = point_distance(box[0:2], box[2:4])
+
+    return diag
+
+
+def bbox_jitter(points_x, points_y, jitter_ratio_x=0.5, jitter_ratio_y=0.1):
+    """Jitter on the coordinates of bounding box.
+
+    Args:
+        points_x (list[float | int]): List of y for four vertices.
+        points_y (list[float | int]): List of x for four vertices.
+        jitter_ratio_x (float): Horizontal jitter ratio relative to the height.
+        jitter_ratio_y (float): Vertical jitter ratio relative to the height.
+    """
+    assert len(points_x) == 4
+    assert len(points_y) == 4
+    assert isinstance(jitter_ratio_x, float)
+    assert isinstance(jitter_ratio_y, float)
+    assert 0 <= jitter_ratio_x < 1
+    assert 0 <= jitter_ratio_y < 1
+
+    points = [Point(points_x[i], points_y[i]) for i in range(4)]
+    line_list = [
+        LineString([points[i], points[i + 1 if i < 3 else 0]])
+        for i in range(4)
+    ]
+
+    tmp_h = max(line_list[1].length, line_list[3].length)
+
+    for i in range(4):
+        jitter_pixel_x = (np.random.rand() - 0.5) * 2 * jitter_ratio_x * tmp_h
+        jitter_pixel_y = (np.random.rand() - 0.5) * 2 * jitter_ratio_y * tmp_h
+        points_x[i] += jitter_pixel_x
+        points_y[i] += jitter_pixel_y
diff --git a/mmocr-dev-1.x/mmocr/utils/bezier_utils.py b/mmocr-dev-1.x/mmocr/utils/bezier_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..d93a6293926e2d807eb089bf92835e39a4ef5d84
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/bezier_utils.py
@@ -0,0 +1,62 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import numpy as np
+from scipy.special import comb as n_over_k
+
+from mmocr.utils.typing_utils import ArrayLike
+
+
+def bezier_coefficient(n, t, k):
+    return t**k * (1 - t)**(n - k) * n_over_k(n, k)
+
+
+def bezier_coefficients(time, point_num, ratios):
+    return [[bezier_coefficient(time, ratio, num) for num in range(point_num)]
+            for ratio in ratios]
+
+
+def linear_interpolation(point1: np.ndarray,
+                         point2: np.ndarray,
+                         number: int = 2) -> np.ndarray:
+    t = np.linspace(0, 1, number + 2).reshape(-1, 1)
+    return point1 + (point2 - point1) * t
+
+
+def curve2bezier(curve: ArrayLike):
+    curve = np.array(curve).reshape(-1, 2)
+    if len(curve) == 2:
+        return linear_interpolation(curve[0], curve[1])
+    diff = curve[1:] - curve[:-1]
+    distance = np.linalg.norm(diff, axis=-1)
+    norm_distance = distance / distance.sum()
+    norm_distance = np.hstack(([0], norm_distance))
+    cum_norm_dis = norm_distance.cumsum()
+    pseudo_inv = np.linalg.pinv(bezier_coefficients(3, 4, cum_norm_dis))
+    control_points = pseudo_inv.dot(curve)
+    return control_points
+
+
+def bezier2curve(bezier: np.ndarray, num_sample: int = 10):
+    bezier = np.asarray(bezier)
+    t = np.linspace(0, 1, num_sample)
+    return np.array(bezier_coefficients(3, 4, t)).dot(bezier)
+
+
+def poly2bezier(poly):
+    poly = np.array(poly).reshape(-1, 2)
+    points_num = len(poly)
+    up_curve = poly[:points_num // 2]
+    down_curve = poly[points_num // 2:]
+    up_bezier = curve2bezier(up_curve)
+    down_bezier = curve2bezier(down_curve)
+    up_bezier[0] = up_curve[0]
+    up_bezier[-1] = up_curve[-1]
+    down_bezier[0] = down_curve[0]
+    down_bezier[-1] = down_curve[-1]
+    return np.vstack((up_bezier, down_bezier)).flatten().tolist()
+
+
+def bezier2poly(bezier, num_sample=20):
+    bezier = bezier.reshape(2, 4, 2)
+    curve_top = bezier2curve(bezier[0], num_sample)
+    curve_bottom = bezier2curve(bezier[1], num_sample)
+    return np.vstack((curve_top, curve_bottom)).flatten().tolist()
diff --git a/mmocr-dev-1.x/mmocr/utils/check_argument.py b/mmocr-dev-1.x/mmocr/utils/check_argument.py
new file mode 100644
index 0000000000000000000000000000000000000000..34cbe8dc2658d725c328eb5cd98652633a22aa24
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/check_argument.py
@@ -0,0 +1,72 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+
+def is_3dlist(x):
+    """check x is 3d-list([[[1], []]]) or 2d empty list([[], []]) or 1d empty
+    list([]).
+
+    Notice:
+        The reason that it contains 1d or 2d empty list is because
+        some arguments from gt annotation file or model prediction
+        may be empty, but usually, it should be 3d-list.
+    """
+    if not isinstance(x, list):
+        return False
+    if len(x) == 0:
+        return True
+    for sub_x in x:
+        if not is_2dlist(sub_x):
+            return False
+
+    return True
+
+
+def is_2dlist(x):
+    """check x is 2d-list([[1], []]) or 1d empty list([]).
+
+    Notice:
+        The reason that it contains 1d empty list is because
+        some arguments from gt annotation file or model prediction
+        may be empty, but usually, it should be 2d-list.
+    """
+    if not isinstance(x, list):
+        return False
+    if len(x) == 0:
+        return True
+
+    return all(isinstance(item, list) for item in x)
+
+
+def is_type_list(x, type):
+
+    if not isinstance(x, list):
+        return False
+
+    return all(isinstance(item, type) for item in x)
+
+
+def is_none_or_type(x, type):
+
+    return isinstance(x, type) or x is None
+
+
+def equal_len(*argv):
+    assert len(argv) > 0
+
+    num_arg = len(argv[0])
+    for arg in argv:
+        if len(arg) != num_arg:
+            return False
+    return True
+
+
+def valid_boundary(x, with_score=True):
+    num = len(x)
+    if num < 8:
+        return False
+    if num % 2 == 0 and (not with_score):
+        return True
+    if num % 2 == 1 and with_score:
+        return True
+
+    return False
diff --git a/mmocr-dev-1.x/mmocr/utils/collect_env.py b/mmocr-dev-1.x/mmocr/utils/collect_env.py
new file mode 100644
index 0000000000000000000000000000000000000000..cf56ecc77902841220cb3e9040033de82fe81e2c
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/collect_env.py
@@ -0,0 +1,17 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmengine.utils import get_git_hash
+from mmengine.utils.dl_utils import collect_env as collect_base_env
+
+import mmocr
+
+
+def collect_env():
+    """Collect the information of the running environments."""
+    env_info = collect_base_env()
+    env_info['MMOCR'] = mmocr.__version__ + '+' + get_git_hash()[:7]
+    return env_info
+
+
+if __name__ == '__main__':
+    for name, val in collect_env().items():
+        print(f'{name}: {val}')
diff --git a/mmocr-dev-1.x/mmocr/utils/data_converter_utils.py b/mmocr-dev-1.x/mmocr/utils/data_converter_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..bbc4ad090a143c4acd705fdce8d45d2e3e73bf0d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/data_converter_utils.py
@@ -0,0 +1,189 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, Sequence
+
+import mmengine
+
+from mmocr.utils import is_type_list
+
+
+def dump_ocr_data(image_infos: Sequence[Dict], out_json_name: str,
+                  task_name: str, **kwargs) -> Dict:
+    """Dump the annotation in openmmlab style.
+
+    Args:
+        image_infos (list): List of image information dicts. Read the example
+            section for the format illustration.
+        out_json_name (str): Output json filename.
+        task_name (str): Task name. Options are 'textdet', 'textrecog' and
+            'textspotter'.
+
+    Examples:
+        Here is the general structure of image_infos for textdet/textspotter
+        tasks:
+
+        .. code-block:: python
+
+            [  # A list of dicts. Each dict stands for a single image.
+                {
+                    "file_name": "1.jpg",
+                    "height": 100,
+                    "width": 200,
+                    "segm_file": "seg.txt" # (optional) path to segmap
+                    "anno_info": [  # a list of dicts. Each dict
+                                    # stands for a single text instance.
+                        {
+                            "iscrowd": 0,  # 0: don't ignore this instance
+                                           # 1: ignore
+                            "category_id": 0,  # Instance class id. Must be 0
+                                               # for OCR tasks to permanently
+                                               # be mapped to 'text' category
+                            "bbox": [x, y, w, h],
+                            "segmentation": [x1, y1, x2, y2, ...],
+                            "text": "demo_text"  # for textspotter only.
+                        }
+                    ]
+                },
+            ]
+
+        The input for textrecog task is much simpler:
+
+        .. code-block:: python
+
+            [   # A list of dicts. Each dict stands for a single image.
+                {
+                    "file_name": "1.jpg",
+                    "anno_info": [  # a list of dicts. Each dict
+                                    # stands for a single text instance.
+                                    # However, in textrecog, usually each
+                                    # image only has one text instance.
+                        {
+                            "text": "demo_text"
+                        }
+                    ]
+                },
+            ]
+
+
+    Returns:
+        out_json(dict): The openmmlab-style annotation.
+    """
+
+    task2dataset = {
+        'textspotter': 'TextSpotterDataset',
+        'textdet': 'TextDetDataset',
+        'textrecog': 'TextRecogDataset'
+    }
+
+    assert isinstance(image_infos, list)
+    assert isinstance(out_json_name, str)
+    assert task_name in task2dataset.keys()
+
+    dataset_type = task2dataset[task_name]
+
+    out_json = dict(
+        metainfo=dict(dataset_type=dataset_type, task_name=task_name),
+        data_list=list())
+    if task_name in ['textdet', 'textspotter']:
+        out_json['metainfo']['category'] = [dict(id=0, name='text')]
+
+    for image_info in image_infos:
+
+        single_info = dict(instances=list())
+        single_info['img_path'] = image_info['file_name']
+        if task_name in ['textdet', 'textspotter']:
+            single_info['height'] = image_info['height']
+            single_info['width'] = image_info['width']
+            if 'segm_file' in image_info:
+                single_info['seg_map'] = image_info['segm_file']
+
+        anno_infos = image_info['anno_info']
+
+        for anno_info in anno_infos:
+            instance = {}
+            if task_name in ['textrecog', 'textspotter']:
+                instance['text'] = anno_info['text']
+            if task_name in ['textdet', 'textspotter']:
+                mask = anno_info['segmentation']
+                # TODO: remove this if-branch when all converters have been
+                # verified
+                if len(mask) == 1 and len(mask[0]) > 1:
+                    mask = mask[0]
+                    warnings.warn(
+                        'Detected nested segmentation for a single'
+                        'text instance, which should be a 1-d array now.'
+                        'Please fix input accordingly.')
+                instance['polygon'] = mask
+                x, y, w, h = anno_info['bbox']
+                instance['bbox'] = [x, y, x + w, y + h]
+                instance['bbox_label'] = anno_info['category_id']
+                instance['ignore'] = anno_info['iscrowd'] == 1
+            single_info['instances'].append(instance)
+
+        out_json['data_list'].append(single_info)
+
+    mmengine.dump(out_json, out_json_name, **kwargs)
+
+    return out_json
+
+
+def recog_anno_to_imginfo(
+    file_paths: Sequence[str],
+    labels: Sequence[str],
+) -> Sequence[Dict]:
+    """Convert a list of file_paths and labels for recognition tasks into the
+    format of image_infos acceptable by :func:`dump_ocr_data()`. It's meant to
+    maintain compatibility with the legacy annotation format in MMOCR 0.x.
+
+    In MMOCR 0.x, data converters for recognition usually converts the
+    annotations into a list of file paths and a list of labels, which look
+    like the following:
+
+    .. code-block:: python
+
+        file_paths = ['1.jpg', '2.jpg', ...]
+        labels = ['aaa', 'bbb', ...]
+
+    This utility merges them into a list of dictionaries parsable by
+    :func:`dump_ocr_data()`:
+
+    .. code-block:: python
+
+        [   # A list of dicts. Each dict stands for a single image.
+            {
+                "file_name": "1.jpg",
+                "anno_info": [
+                    {
+                        "text": "aaa"
+                    }
+                ]
+            },
+            {
+                "file_name": "2.jpg",
+                "anno_info": [
+                    {
+                        "text": "bbb"
+                    }
+                ]
+            },
+            ...
+        ]
+
+    Args:
+        file_paths (list[str]): A list of file paths to images.
+        labels (list[str]): A list of text labels.
+
+    Returns:
+        list[dict]: Annotations parsable by :func:`dump_ocr_data()`.
+    """
+    assert is_type_list(file_paths, str)
+    assert is_type_list(labels, str)
+    assert len(file_paths) == len(labels)
+
+    results = []
+    for i in range(len(file_paths)):
+        result = dict(
+            file_name=file_paths[i], anno_info=[dict(text=labels[i])])
+        results.append(result)
+
+    return results
diff --git a/mmocr-dev-1.x/mmocr/utils/fileio.py b/mmocr-dev-1.x/mmocr/utils/fileio.py
new file mode 100644
index 0000000000000000000000000000000000000000..cae4e58571c29a1f3573dc8053b7daf5b04c07cd
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/fileio.py
@@ -0,0 +1,125 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import hashlib
+import os.path as osp
+import sys
+import warnings
+from glob import glob
+from typing import List
+
+from mmengine import mkdir_or_exist
+
+
+def list_to_file(filename, lines):
+    """Write a list of strings to a text file.
+
+    Args:
+        filename (str): The output filename. It will be created/overwritten.
+        lines (list(str)): Data to be written.
+    """
+    mkdir_or_exist(osp.dirname(filename))
+    with open(filename, 'w', encoding='utf-8') as fw:
+        for line in lines:
+            fw.write(f'{line}\n')
+
+
+def list_from_file(filename, encoding='utf-8'):
+    """Load a text file and parse the content as a list of strings. The
+    trailing "\\r" and "\\n" of each line will be removed.
+
+    Note:
+        This will be replaced by mmcv's version after it supports encoding.
+
+    Args:
+        filename (str): Filename.
+        encoding (str): Encoding used to open the file. Default utf-8.
+
+    Returns:
+        list[str]: A list of strings.
+    """
+    item_list = []
+    with open(filename, encoding=encoding) as f:
+        for line in f:
+            item_list.append(line.rstrip('\n\r'))
+    return item_list
+
+
+def is_archive(file_path: str) -> bool:
+    """Check whether the file is a supported archive format.
+
+    Args:
+        file_path (str): Path to the file.
+
+    Returns:
+        bool: Whether the file is an archive.
+    """
+
+    suffixes = ['zip', 'tar', 'tar.gz']
+
+    for suffix in suffixes:
+        if file_path.endswith(suffix):
+            return True
+    return False
+
+
+def check_integrity(file_path: str,
+                    md5: str,
+                    chunk_size: int = 1024 * 1024) -> bool:
+    """Check if the file exist and match to the given md5 code.
+
+    Args:
+        file_path (str): Path to the file.
+        md5 (str): MD5 to be matched.
+        chunk_size (int, optional): Chunk size. Defaults to 1024*1024.
+
+    Returns:
+        bool: Whether the md5 is matched.
+    """
+    if md5 is None:
+        warnings.warn('MD5 is None, skip the integrity check.')
+        return True
+    if not osp.exists(file_path):
+        return False
+
+    return get_md5(file_path=file_path, chunk_size=chunk_size) == md5
+
+
+def get_md5(file_path: str, chunk_size: int = 1024 * 1024) -> str:
+    """Get the md5 of the file.
+
+    Args:
+        file_path (str): Path to the file.
+        chunk_size (int, optional): Chunk size. Defaults to 1024*1024.
+
+    Returns:
+        str: MD5 of the file.
+    """
+    if not osp.exists(file_path):
+        raise FileNotFoundError(f'{file_path} does not exist.')
+
+    if sys.version_info >= (3, 9):
+        hash = hashlib.md5(usedforsecurity=False)
+    else:
+        hash = hashlib.md5()
+    with open(file_path, 'rb') as f:
+        for chunk in iter(lambda: f.read(chunk_size), b''):
+            hash.update(chunk)
+
+    return hash.hexdigest()
+
+
+def list_files(path: str, suffixes: List) -> List:
+    """Retrieve file list from the path.
+
+    Args:
+        path (str): Path to the directory.
+        suffixes (list[str], optional): Suffixes to be retrieved.
+
+    Returns:
+        List: List of the files.
+    """
+
+    file_list = []
+    for suffix in suffixes:
+        file_list.extend(glob(osp.join(path, '*' + suffix)))
+
+    return file_list
diff --git a/mmocr-dev-1.x/mmocr/utils/img_utils.py b/mmocr-dev-1.x/mmocr/utils/img_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..c96a05d2578ffc165d6323b37e3a7955b8ce68cf
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/img_utils.py
@@ -0,0 +1,108 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import cv2
+import numpy as np
+from mmengine.utils import is_seq_of
+from shapely.geometry import LineString, Point
+
+from .bbox_utils import bbox_jitter
+from .polygon_utils import sort_vertex
+
+
+def warp_img(src_img,
+             box,
+             jitter=False,
+             jitter_ratio_x=0.5,
+             jitter_ratio_y=0.1):
+    """Crop box area from image using opencv warpPerspective.
+
+    Args:
+        src_img (np.array): Image before cropping.
+        box (list[float | int]): Coordinates of quadrangle.
+        jitter (bool): Whether to jitter the box.
+        jitter_ratio_x (float): Horizontal jitter ratio relative to the height.
+        jitter_ratio_y (float): Vertical jitter ratio relative to the height.
+
+    Returns:
+        np.array: The warped image.
+    """
+    assert is_seq_of(box, (float, int))
+    assert len(box) == 8
+
+    h, w = src_img.shape[:2]
+    points_x = [min(max(x, 0), w) for x in box[0:8:2]]
+    points_y = [min(max(y, 0), h) for y in box[1:9:2]]
+
+    points_x, points_y = sort_vertex(points_x, points_y)
+
+    if jitter:
+        bbox_jitter(
+            points_x,
+            points_y,
+            jitter_ratio_x=jitter_ratio_x,
+            jitter_ratio_y=jitter_ratio_y)
+
+    points = [Point(points_x[i], points_y[i]) for i in range(4)]
+    edges = [
+        LineString([points[i], points[i + 1 if i < 3 else 0]])
+        for i in range(4)
+    ]
+
+    pts1 = np.float32([[points[i].x, points[i].y] for i in range(4)])
+    box_width = max(edges[0].length, edges[2].length)
+    box_height = max(edges[1].length, edges[3].length)
+
+    pts2 = np.float32([[0, 0], [box_width, 0], [box_width, box_height],
+                       [0, box_height]])
+    M = cv2.getPerspectiveTransform(pts1, pts2)
+    dst_img = cv2.warpPerspective(src_img, M,
+                                  (int(box_width), int(box_height)))
+
+    return dst_img
+
+
+def crop_img(src_img, box, long_edge_pad_ratio=0.4, short_edge_pad_ratio=0.2):
+    """Crop text region given the bounding box which might be slightly padded.
+    The bounding box is assumed to be a quadrangle and tightly bound the text
+    region.
+
+    Args:
+        src_img (np.array): The original image.
+        box (list[float | int]): Points of quadrangle.
+        long_edge_pad_ratio (float): The ratio of padding to the long edge. The
+            padding will be the length of the short edge * long_edge_pad_ratio.
+            Defaults to 0.4.
+        short_edge_pad_ratio (float): The ratio of padding to the short edge.
+            The padding will be the length of the long edge *
+            short_edge_pad_ratio. Defaults to 0.2.
+
+    Returns:
+        np.array: The cropped image.
+    """
+    assert is_seq_of(box, (float, int))
+    assert len(box) == 8
+    assert 0. <= long_edge_pad_ratio < 1.0
+    assert 0. <= short_edge_pad_ratio < 1.0
+
+    h, w = src_img.shape[:2]
+    points_x = np.clip(np.array(box[0::2]), 0, w)
+    points_y = np.clip(np.array(box[1::2]), 0, h)
+
+    box_width = np.max(points_x) - np.min(points_x)
+    box_height = np.max(points_y) - np.min(points_y)
+    shorter_size = min(box_height, box_width)
+
+    if box_height < box_width:
+        horizontal_pad = long_edge_pad_ratio * shorter_size
+        vertical_pad = short_edge_pad_ratio * shorter_size
+    else:
+        horizontal_pad = short_edge_pad_ratio * shorter_size
+        vertical_pad = long_edge_pad_ratio * shorter_size
+
+    left = np.clip(int(np.min(points_x) - horizontal_pad), 0, w)
+    top = np.clip(int(np.min(points_y) - vertical_pad), 0, h)
+    right = np.clip(int(np.max(points_x) + horizontal_pad), 0, w)
+    bottom = np.clip(int(np.max(points_y) + vertical_pad), 0, h)
+
+    dst_img = src_img[top:bottom, left:right]
+
+    return dst_img
diff --git a/mmocr-dev-1.x/mmocr/utils/mask_utils.py b/mmocr-dev-1.x/mmocr/utils/mask_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..a6903072f250766b876f1518be7c613e8c60cebc
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/mask_utils.py
@@ -0,0 +1,40 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import cv2
+import numpy as np
+
+from mmocr.utils.typing_utils import ArrayLike
+
+
+def fill_hole(input_mask: ArrayLike) -> np.array:
+    """Fill holes in matrix.
+
+        Input:
+            [[0, 0, 0, 0, 0, 0, 0],
+             [0, 1, 1, 1, 1, 1, 0],
+             [0, 1, 0, 0, 0, 1, 0],
+             [0, 1, 1, 1, 1, 1, 0],
+             [0, 0, 0, 0, 0, 0, 0]]
+        Output:
+            [[0, 0, 0, 0, 0, 0, 0],
+             [0, 1, 1, 1, 1, 1, 0],
+             [0, 1, 1, 1, 1, 1, 0],
+             [0, 1, 1, 1, 1, 1, 0],
+             [0, 0, 0, 0, 0, 0, 0]]
+
+    Args:
+        input_mask (ArrayLike): The input mask.
+
+    Returns:
+        np.array: The output mask that has been filled.
+    """
+    input_mask = np.array(input_mask)
+    h, w = input_mask.shape
+    canvas = np.zeros((h + 2, w + 2), np.uint8)
+    canvas[1:h + 1, 1:w + 1] = input_mask.copy()
+
+    mask = np.zeros((h + 4, w + 4), np.uint8)
+
+    cv2.floodFill(canvas, mask, (0, 0), 1)
+    canvas = canvas[1:h + 1, 1:w + 1].astype(np.bool_)
+
+    return ~canvas | input_mask
diff --git a/mmocr-dev-1.x/mmocr/utils/parsers.py b/mmocr-dev-1.x/mmocr/utils/parsers.py
new file mode 100644
index 0000000000000000000000000000000000000000..87cc063de1252611cf662b5b62c312bbdcfca0c0
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/parsers.py
@@ -0,0 +1,82 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import warnings
+from typing import Dict, Tuple
+
+from mmocr.registry import TASK_UTILS
+from mmocr.utils.string_utils import StringStripper
+
+
+@TASK_UTILS.register_module()
+class LineStrParser:
+    """Parse string of one line in annotation file to dict format.
+
+    Args:
+        keys (list[str]): Keys in result dict. Defaults to
+            ['filename', 'text'].
+        keys_idx (list[int]): Value index in sub-string list for each key
+            above. Defaults to [0, 1].
+        separator (str): Separator to separate string to list of sub-string.
+            Defaults to ' '.
+    """
+
+    def __init__(self,
+                 keys: Tuple[str, str] = ['filename', 'text'],
+                 keys_idx: Tuple[int, int] = [0, 1],
+                 separator: str = ' ',
+                 **kwargs):
+        assert isinstance(keys, list)
+        assert isinstance(keys_idx, list)
+        assert isinstance(separator, str)
+        assert len(keys) > 0
+        assert len(keys) == len(keys_idx)
+        self.keys = keys
+        self.keys_idx = keys_idx
+        self.separator = separator
+        self.strip_cls = StringStripper(**kwargs)
+
+    def __call__(self, in_str: str) -> Dict:
+        line_str = self.strip_cls(in_str)
+        if len(line_str.split(' ')) > 2:
+            msg = 'More than two blank spaces were detected. '
+            msg += 'Please use LineJsonParser to handle '
+            msg += 'annotations with blanks. '
+            msg += 'Check Doc '
+            msg += 'https://mmocr.readthedocs.io/en/latest/'
+            msg += 'tutorials/blank_recog.html '
+            msg += 'for details.'
+            warnings.warn(msg, UserWarning)
+        line_str = line_str.split(self.separator)
+        if len(line_str) <= max(self.keys_idx):
+            raise ValueError(
+                f'key index: {max(self.keys_idx)} out of range: {line_str}')
+
+        line_info = {}
+        for i, key in enumerate(self.keys):
+            line_info[key] = line_str[self.keys_idx[i]]
+        return line_info
+
+
+@TASK_UTILS.register_module()
+class LineJsonParser:
+    """Parse json-string of one line in annotation file to dict format.
+
+    Args:
+        keys (list[str]): Keys in both json-string and result dict. Defaults
+            to ['filename', 'text'].
+    """
+
+    def __init__(self, keys: Tuple[str, str] = ['filename', 'text']) -> None:
+        assert isinstance(keys, list)
+        assert len(keys) > 0
+        self.keys = keys
+
+    def __call__(self, in_str: str) -> Dict:
+        line_json_obj = json.loads(in_str)
+        line_info = {}
+        for key in self.keys:
+            if key not in line_json_obj:
+                raise Exception(f'key {key} not in line json {line_json_obj}')
+            line_info[key] = line_json_obj[key]
+
+        return line_info
diff --git a/mmocr-dev-1.x/mmocr/utils/point_utils.py b/mmocr-dev-1.x/mmocr/utils/point_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..809805f2eaf44337c184216375428f07e99899b9
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/point_utils.py
@@ -0,0 +1,40 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import numpy as np
+
+from mmocr.utils.typing_utils import ArrayLike
+
+
+def points_center(points: ArrayLike) -> np.ndarray:
+    """Calculate the center of a set of points.
+
+    Args:
+        points (ArrayLike): A set of points.
+
+    Returns:
+        np.ndarray: The coordinate of center point.
+    """
+    points = np.array(points, dtype=np.float32)
+    assert points.size % 2 == 0
+
+    points = points.reshape([-1, 2])
+    return np.mean(points, axis=0)
+
+
+def point_distance(pt1: ArrayLike, pt2: ArrayLike) -> float:
+    """Calculate the distance between two points.
+
+    Args:
+        pt1 (ArrayLike): The first point.
+        pt2 (ArrayLike): The second point.
+
+    Returns:
+        float: The distance between two points.
+    """
+    pt1 = np.array(pt1)
+    pt2 = np.array(pt2)
+
+    assert (pt1.size == 2 and pt2.size == 2)
+
+    dist = np.square(pt2 - pt1).sum()
+    dist = np.sqrt(dist)
+    return dist
diff --git a/mmocr-dev-1.x/mmocr/utils/polygon_utils.py b/mmocr-dev-1.x/mmocr/utils/polygon_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..805404a6f49cdc26129cdad4197bab28a4da5556
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/polygon_utils.py
@@ -0,0 +1,457 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+import operator
+from functools import reduce
+from typing import List, Optional, Sequence, Tuple, Union
+
+import numpy as np
+import pyclipper
+import shapely
+from mmengine.utils import is_list_of
+from shapely.geometry import MultiPolygon, Polygon
+
+from mmocr.utils import bbox2poly, valid_boundary
+from mmocr.utils.check_argument import is_2dlist
+from mmocr.utils.typing_utils import ArrayLike
+
+
+def rescale_polygon(polygon: ArrayLike,
+                    scale_factor: Tuple[int, int],
+                    mode: str = 'mul') -> np.ndarray:
+    """Rescale a polygon according to scale_factor.
+
+    The behavior is different depending on the mode. When mode is 'mul', the
+    coordinates will be multiplied by scale_factor, which is usually used in
+    preprocessing transforms such as :func:`Resize`.
+    The coordinates will be divided by scale_factor if mode is 'div'. It can be
+    used in postprocessors to recover the polygon in the original
+    image size.
+
+    Args:
+        polygon (ArrayLike): A polygon. In any form can be converted
+            to an 1-D numpy array. E.g. list[float], np.ndarray,
+            or torch.Tensor. Polygon is written in
+            [x1, y1, x2, y2, ...].
+        scale_factor (tuple(int, int)): (w_scale, h_scale).
+        model (str): Rescale mode. Can be 'mul' or 'div'. Defaults to 'mul'.
+
+    Returns:
+        np.ndarray: Rescaled polygon.
+    """
+    assert len(polygon) % 2 == 0
+    assert mode in ['mul', 'div']
+    polygon = np.array(polygon, dtype=np.float32)
+    poly_shape = polygon.shape
+    reshape_polygon = polygon.reshape(-1, 2)
+    scale_factor = np.array(scale_factor, dtype=float)
+    if mode == 'div':
+        scale_factor = 1 / scale_factor
+    polygon = (reshape_polygon * scale_factor[None]).reshape(poly_shape)
+    return polygon
+
+
+def rescale_polygons(polygons: Union[ArrayLike, Sequence[ArrayLike]],
+                     scale_factor: Tuple[int, int],
+                     mode: str = 'mul'
+                     ) -> Union[ArrayLike, Sequence[np.ndarray]]:
+    """Rescale polygons according to scale_factor.
+
+    The behavior is different depending on the mode. When mode is 'mul', the
+    coordinates will be multiplied by scale_factor, which is usually used in
+    preprocessing transforms such as :func:`Resize`.
+    The coordinates will be divided by scale_factor if mode is 'div'. It can be
+    used in postprocessors to recover the polygon in the original
+    image size.
+
+    Args:
+        polygons (list[ArrayLike] or ArrayLike): A list of polygons, each
+            written in [x1, y1, x2, y2, ...] and in any form can be converted
+            to an 1-D numpy array. E.g. list[list[float]],
+            list[np.ndarray], or list[torch.Tensor].
+        scale_factor (tuple(int, int)): (w_scale, h_scale).
+        model (str): Rescale mode. Can be 'mul' or 'div'. Defaults to 'mul'.
+
+    Returns:
+        list[np.ndarray] or np.ndarray: Rescaled polygons. The type of the
+        return value depends on the type of the input polygons.
+    """
+    results = []
+    for polygon in polygons:
+        results.append(rescale_polygon(polygon, scale_factor, mode))
+    if isinstance(polygons, np.ndarray):
+        results = np.array(results)
+    return results
+
+
+def poly2bbox(polygon: ArrayLike) -> np.array:
+    """Converting a polygon to a bounding box.
+
+    Args:
+         polygon (ArrayLike): A polygon. In any form can be converted
+             to an 1-D numpy array. E.g. list[float], np.ndarray,
+             or torch.Tensor. Polygon is written in
+             [x1, y1, x2, y2, ...].
+
+     Returns:
+         np.array: The converted bounding box [x1, y1, x2, y2]
+    """
+    assert len(polygon) % 2 == 0
+    polygon = np.array(polygon, dtype=np.float32)
+    x = polygon[::2]
+    y = polygon[1::2]
+    return np.array([min(x), min(y), max(x), max(y)])
+
+
+def poly2shapely(polygon: ArrayLike) -> Polygon:
+    """Convert a polygon to shapely.geometry.Polygon.
+
+    Args:
+        polygon (ArrayLike): A set of points of 2k shape.
+
+    Returns:
+        polygon (Polygon): A polygon object.
+    """
+    polygon = np.array(polygon, dtype=np.float32)
+    assert polygon.size % 2 == 0 and polygon.size >= 6
+
+    polygon = polygon.reshape([-1, 2])
+    return Polygon(polygon)
+
+
+def polys2shapely(polygons: Sequence[ArrayLike]) -> Sequence[Polygon]:
+    """Convert a nested list of boundaries to a list of Polygons.
+
+    Args:
+        polygons (list): The point coordinates of the instance boundary.
+
+    Returns:
+        list: Converted shapely.Polygon.
+    """
+    return [poly2shapely(polygon) for polygon in polygons]
+
+
+def shapely2poly(polygon: Polygon) -> np.array:
+    """Convert a nested list of boundaries to a list of Polygons.
+
+    Args:
+        polygon (Polygon): A polygon represented by shapely.Polygon.
+
+    Returns:
+        np.array: Converted numpy array
+    """
+    return np.array(polygon.exterior.coords).reshape(-1, )
+
+
+def crop_polygon(polygon: ArrayLike,
+                 crop_box: np.ndarray) -> Union[np.ndarray, None]:
+    """Crop polygon to be within a box region.
+
+    Args:
+        polygon (ndarray): polygon in shape (N, ).
+        crop_box (ndarray): target box region in shape (4, ).
+
+    Returns:
+        np.array or None: Cropped polygon. If the polygon is not within the
+            crop box, return None.
+    """
+    poly = poly_make_valid(poly2shapely(polygon))
+    crop_poly = poly_make_valid(poly2shapely(bbox2poly(crop_box)))
+    area, poly_cropped = poly_intersection(poly, crop_poly, return_poly=True)
+    if area == 0 or area is None or not isinstance(
+            poly_cropped, shapely.geometry.polygon.Polygon):
+        return None
+    else:
+        poly_cropped = poly_make_valid(poly_cropped)
+        poly_cropped = np.array(poly_cropped.boundary.xy, dtype=np.float32)
+        poly_cropped = poly_cropped.T
+        # reverse poly_cropped to have clockwise order
+        poly_cropped = poly_cropped[::-1, :].reshape(-1)
+        return poly_cropped
+
+
+def poly_make_valid(poly: Polygon) -> Polygon:
+    """Convert a potentially invalid polygon to a valid one by eliminating
+    self-crossing or self-touching parts. Note that if the input is a line, the
+    returned polygon could be an empty one.
+
+    Args:
+        poly (Polygon): A polygon needed to be converted.
+
+    Returns:
+        Polygon: A valid polygon, which might be empty.
+    """
+    assert isinstance(poly, Polygon)
+    fixed_poly = poly if poly.is_valid else poly.buffer(0)
+    # Sometimes the fixed_poly is still a MultiPolygon,
+    # so we need to find the convex hull of the MultiPolygon, which should
+    # always be a Polygon (but could be empty).
+    if not isinstance(fixed_poly, Polygon):
+        fixed_poly = fixed_poly.convex_hull
+    return fixed_poly
+
+
+def poly_intersection(poly_a: Polygon,
+                      poly_b: Polygon,
+                      invalid_ret: Optional[Union[float, int]] = None,
+                      return_poly: bool = False
+                      ) -> Tuple[float, Optional[Polygon]]:
+    """Calculate the intersection area between two polygons.
+
+    Args:
+        poly_a (Polygon): Polygon a.
+        poly_b (Polygon): Polygon b.
+        invalid_ret (float or int, optional): The return value when the
+            invalid polygon exists. If it is not specified, the function
+            allows the computation to proceed with invalid polygons by
+            cleaning the their self-touching or self-crossing parts.
+            Defaults to None.
+        return_poly (bool): Whether to return the polygon of the intersection
+            Defaults to False.
+
+    Returns:
+        float or tuple(float, Polygon): Returns the intersection area or
+        a tuple ``(area, Optional[poly_obj])``, where the `area` is the
+        intersection area between two polygons and `poly_obj` is The Polygon
+        object of the intersection area, which will be `None` if the input is
+        invalid. `poly_obj` will be returned only if `return_poly` is `True`.
+    """
+    assert isinstance(poly_a, Polygon)
+    assert isinstance(poly_b, Polygon)
+    assert invalid_ret is None or isinstance(invalid_ret, (float, int))
+
+    if invalid_ret is None:
+        poly_a = poly_make_valid(poly_a)
+        poly_b = poly_make_valid(poly_b)
+
+    poly_obj = None
+    area = invalid_ret
+    if poly_a.is_valid and poly_b.is_valid:
+        if poly_a.intersects(poly_b):
+            poly_obj = poly_a.intersection(poly_b)
+            area = poly_obj.area
+        else:
+            poly_obj = Polygon()
+            area = 0.0
+    return (area, poly_obj) if return_poly else area
+
+
+def poly_union(
+    poly_a: Polygon,
+    poly_b: Polygon,
+    invalid_ret: Optional[Union[float, int]] = None,
+    return_poly: bool = False
+) -> Tuple[float, Optional[Union[Polygon, MultiPolygon]]]:
+    """Calculate the union area between two polygons.
+
+    Args:
+        poly_a (Polygon): Polygon a.
+        poly_b (Polygon): Polygon b.
+        invalid_ret (float or int, optional): The return value when the
+            invalid polygon exists. If it is not specified, the function
+            allows the computation to proceed with invalid polygons by
+            cleaning the their self-touching or self-crossing parts.
+            Defaults to False.
+        return_poly (bool): Whether to return the polygon of the union.
+            Defaults to False.
+
+    Returns:
+        tuple: Returns a tuple ``(area, Optional[poly_obj])``, where
+        the `area` is the union between two polygons and `poly_obj` is the
+        Polygon or MultiPolygon object of the union of the inputs. The type
+        of object depends on whether they intersect or not. Set as `None`
+        if the input is invalid. `poly_obj` will be returned only if
+        `return_poly` is `True`.
+    """
+    assert isinstance(poly_a, Polygon)
+    assert isinstance(poly_b, Polygon)
+    assert invalid_ret is None or isinstance(invalid_ret, (float, int))
+
+    if invalid_ret is None:
+        poly_a = poly_make_valid(poly_a)
+        poly_b = poly_make_valid(poly_b)
+
+    poly_obj = None
+    area = invalid_ret
+    if poly_a.is_valid and poly_b.is_valid:
+        poly_obj = poly_a.union(poly_b)
+        area = poly_obj.area
+    return (area, poly_obj) if return_poly else area
+
+
+def poly_iou(poly_a: Polygon,
+             poly_b: Polygon,
+             zero_division: float = 0.) -> float:
+    """Calculate the IOU between two polygons.
+
+    Args:
+        poly_a (Polygon): Polygon a.
+        poly_b (Polygon): Polygon b.
+        zero_division (float): The return value when invalid polygon exists.
+
+    Returns:
+        float: The IoU between two polygons.
+    """
+    assert isinstance(poly_a, Polygon)
+    assert isinstance(poly_b, Polygon)
+    area_inters = poly_intersection(poly_a, poly_b)
+    area_union = poly_union(poly_a, poly_b)
+    return area_inters / area_union if area_union != 0 else zero_division
+
+
+def is_poly_inside_rect(poly: ArrayLike, rect: np.ndarray) -> bool:
+    """Check if the polygon is inside the target region.
+        Args:
+            poly (ArrayLike): Polygon in shape (N, ).
+            rect (ndarray): Target region [x1, y1, x2, y2].
+
+        Returns:
+            bool: Whether the polygon is inside the cropping region.
+        """
+
+    poly = poly2shapely(poly)
+    rect = poly2shapely(bbox2poly(rect))
+    return rect.contains(poly)
+
+
+def offset_polygon(poly: ArrayLike, distance: float) -> ArrayLike:
+    """Offset (expand/shrink) the polygon by the target distance. It's a
+    wrapper around pyclipper based on Vatti clipping algorithm.
+
+    Warning:
+        Polygon coordinates will be casted to int type in PyClipper. Mind the
+        potential precision loss caused by the casting.
+
+    Args:
+        poly (ArrayLike): A polygon. In any form can be converted
+            to an 1-D numpy array. E.g. list[float], np.ndarray,
+            or torch.Tensor. Polygon is written in
+            [x1, y1, x2, y2, ...].
+        distance (float): The offset distance. Positive value means expanding,
+            negative value means shrinking.
+
+    Returns:
+        np.array: 1-D Offsetted polygon ndarray in float32 type. If the
+        result polygon is invalid or has been split into several parts,
+        return an empty array.
+    """
+    poly = np.array(poly).reshape(-1, 2)
+    pco = pyclipper.PyclipperOffset()
+    pco.AddPath(poly, pyclipper.JT_ROUND, pyclipper.ET_CLOSEDPOLYGON)
+    # Returned result will be in type of int32, convert it back to float32
+    # following MMOCR's convention
+    result = np.array(pco.Execute(distance), dtype=object)
+    if len(result) > 0 and isinstance(result[0], list):
+        # The processed polygon has been split into several parts
+        result = np.array([])
+    result = result.astype(np.float32)
+    # Always use the first polygon since only one polygon is expected
+    # But when the resulting polygon is invalid, return the empty array
+    # as it is
+    return result if len(result) == 0 else result[0].flatten()
+
+
+def boundary_iou(src: List,
+                 target: List,
+                 zero_division: Union[int, float] = 0) -> float:
+    """Calculate the IOU between two boundaries.
+
+    Args:
+       src (list): Source boundary.
+       target (list): Target boundary.
+       zero_division (int or float): The return value when invalid
+                                    boundary exists.
+
+    Returns:
+       float: The iou between two boundaries.
+    """
+    assert valid_boundary(src, False)
+    assert valid_boundary(target, False)
+    src_poly = poly2shapely(src)
+    target_poly = poly2shapely(target)
+
+    return poly_iou(src_poly, target_poly, zero_division=zero_division)
+
+
+def sort_points(points):
+    # TODO Add typehints & test & docstring
+    """Sort arbitrary points in clockwise order in Cartesian coordinate, you
+    may need to reverse the output sequence if you are using OpenCV's image
+    coordinate.
+
+    Reference:
+    https://github.com/novioleo/Savior/blob/master/Utils/GeometryUtils.py.
+
+    Warning: This function can only sort convex polygons.
+
+    Args:
+        points (list[ndarray] or ndarray or list[list]): A list of unsorted
+            boundary points.
+
+    Returns:
+        list[ndarray]: A list of points sorted in clockwise order.
+    """
+    assert is_list_of(points, np.ndarray) or isinstance(points, np.ndarray) \
+        or is_2dlist(points)
+    center_point = tuple(
+        map(operator.truediv,
+            reduce(lambda x, y: map(operator.add, x, y), points),
+            [len(points)] * 2))
+    return sorted(
+        points,
+        key=lambda coord: (180 + math.degrees(
+            math.atan2(*tuple(map(operator.sub, coord, center_point))))) % 360)
+
+
+def sort_vertex(points_x, points_y):
+    # TODO Add typehints & test
+    """Sort box vertices in clockwise order from left-top first.
+
+    Args:
+        points_x (list[float]): x of four vertices.
+        points_y (list[float]): y of four vertices.
+
+    Returns:
+        tuple[list[float], list[float]]: Sorted x and y of four vertices.
+
+        - sorted_points_x (list[float]): x of sorted four vertices.
+        - sorted_points_y (list[float]): y of sorted four vertices.
+    """
+    assert is_list_of(points_x, (float, int))
+    assert is_list_of(points_y, (float, int))
+    assert len(points_x) == 4
+    assert len(points_y) == 4
+    vertices = np.stack((points_x, points_y), axis=-1).astype(np.float32)
+    vertices = _sort_vertex(vertices)
+    sorted_points_x = list(vertices[:, 0])
+    sorted_points_y = list(vertices[:, 1])
+    return sorted_points_x, sorted_points_y
+
+
+def _sort_vertex(vertices):
+    # TODO Add typehints & docstring & test
+    assert vertices.ndim == 2
+    assert vertices.shape[-1] == 2
+    N = vertices.shape[0]
+    if N == 0:
+        return vertices
+
+    center = np.mean(vertices, axis=0)
+    directions = vertices - center
+    angles = np.arctan2(directions[:, 1], directions[:, 0])
+    sort_idx = np.argsort(angles)
+    vertices = vertices[sort_idx]
+
+    left_top = np.min(vertices, axis=0)
+    dists = np.linalg.norm(left_top - vertices, axis=-1, ord=2)
+    lefttop_idx = np.argmin(dists)
+    indexes = (np.arange(N, dtype=np.int_) + lefttop_idx) % N
+    return vertices[indexes]
+
+
+def sort_vertex8(points):
+    # TODO Add typehints & docstring & test
+    """Sort vertex with 8 points [x1 y1 x2 y2 x3 y3 x4 y4]"""
+    assert len(points) == 8
+    vertices = _sort_vertex(np.array(points, dtype=np.float32).reshape(-1, 2))
+    sorted_box = list(vertices.flatten())
+    return sorted_box
diff --git a/mmocr-dev-1.x/mmocr/utils/processing.py b/mmocr-dev-1.x/mmocr/utils/processing.py
new file mode 100644
index 0000000000000000000000000000000000000000..2da6ff2c90d746c67c18fd1f22e6bd8d1f2bf887
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/processing.py
@@ -0,0 +1,67 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import sys
+from collections.abc import Iterable
+
+from mmengine.utils.progressbar import ProgressBar, init_pool
+
+
+def track_parallel_progress_multi_args(func,
+                                       args,
+                                       nproc,
+                                       initializer=None,
+                                       initargs=None,
+                                       bar_width=50,
+                                       chunksize=1,
+                                       skip_first=False,
+                                       file=sys.stdout):
+    """Track the progress of parallel task execution with a progress bar.
+
+    The built-in :mod:`multiprocessing` module is used for process pools and
+    tasks are done with :func:`Pool.map` or :func:`Pool.imap_unordered`.
+
+    Args:
+        func (callable): The function to be applied to each task.
+        tasks (tuple[Iterable]): A tuple of tasks.
+        nproc (int): Process (worker) number.
+        initializer (None or callable): Refer to :class:`multiprocessing.Pool`
+            for details.
+        initargs (None or tuple): Refer to :class:`multiprocessing.Pool` for
+            details.
+        chunksize (int): Refer to :class:`multiprocessing.Pool` for details.
+        bar_width (int): Width of progress bar.
+        skip_first (bool): Whether to skip the first sample for each worker
+            when estimating fps, since the initialization step may takes
+            longer.
+        keep_order (bool): If True, :func:`Pool.imap` is used, otherwise
+            :func:`Pool.imap_unordered` is used.
+
+    Returns:
+        list: The task results.
+    """
+    assert isinstance(args, tuple)
+    for arg in args:
+        assert isinstance(arg, Iterable)
+    assert len(set([len(arg)
+                    for arg in args])) == 1, 'args must have same length'
+    task_num = len(args[0])
+    tasks = zip(*args)
+
+    pool = init_pool(nproc, initializer, initargs)
+    start = not skip_first
+    task_num -= nproc * chunksize * int(skip_first)
+    prog_bar = ProgressBar(task_num, bar_width, start, file=file)
+    results = []
+    gen = pool.starmap(func, tasks, chunksize)
+    for result in gen:
+        results.append(result)
+        if skip_first:
+            if len(results) < nproc * chunksize:
+                continue
+            elif len(results) == nproc * chunksize:
+                prog_bar.start()
+                continue
+        prog_bar.update()
+    prog_bar.file.write('\n')
+    pool.close()
+    pool.join()
+    return results
diff --git a/mmocr-dev-1.x/mmocr/utils/setup_env.py b/mmocr-dev-1.x/mmocr/utils/setup_env.py
new file mode 100644
index 0000000000000000000000000000000000000000..32206ecfa3fd847d37750411e3329af8a3a4703d
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/setup_env.py
@@ -0,0 +1,41 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import datetime
+import warnings
+
+from mmengine.registry import DefaultScope
+
+
+def register_all_modules(init_default_scope: bool = True) -> None:
+    """Register all modules in mmocr into the registries.
+
+    Args:
+        init_default_scope (bool): Whether initialize the mmocr default scope.
+            When `init_default_scope=True`, the global default scope will be
+            set to `mmocr`, and all registries will build modules from mmocr's
+            registry node. To understand more about the registry, please refer
+            to https://github.com/open-mmlab/mmengine/blob/main/docs/en/tutorials/registry.md
+            Defaults to True.
+    """  # noqa
+    import mmocr.apis  # noqa: F401,F403
+    import mmocr.datasets  # noqa: F401,F403
+    import mmocr.engine  # noqa: F401,F403
+    import mmocr.evaluation  # noqa: F401,F403
+    import mmocr.models  # noqa: F401,F403
+    import mmocr.structures  # noqa: F401,F403
+    import mmocr.visualization  # noqa: F401,F403
+    if init_default_scope:
+        never_created = DefaultScope.get_current_instance() is None \
+                        or not DefaultScope.check_instance_created('mmocr')
+        if never_created:
+            DefaultScope.get_instance('mmocr', scope_name='mmocr')
+            return
+        current_scope = DefaultScope.get_current_instance()
+        if current_scope.scope_name != 'mmocr':
+            warnings.warn('The current default scope '
+                          f'"{current_scope.scope_name}" is not "mmocr", '
+                          '`register_all_modules` will force the current'
+                          'default scope to be "mmocr". If this is not '
+                          'expected, please set `init_default_scope=False`.')
+            # avoid name conflict
+            new_instance_name = f'mmocr-{datetime.datetime.now()}'
+            DefaultScope.get_instance(new_instance_name, scope_name='mmocr')
diff --git a/mmocr-dev-1.x/mmocr/utils/string_utils.py b/mmocr-dev-1.x/mmocr/utils/string_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..4c59740872dc9e086f7f672f9b0f58250d6512c6
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/string_utils.py
@@ -0,0 +1,36 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+class StringStripper:
+    """Removing the leading and/or the trailing characters based on the string
+    argument passed.
+
+    Args:
+        strip (bool): Whether remove characters from both left and right of
+            the string. Default: True.
+        strip_pos (str): Which position for removing, can be one of
+            ('both', 'left', 'right'), Default: 'both'.
+        strip_str (str|None): A string specifying the set of characters
+            to be removed from the left and right part of the string.
+            If None, all leading and trailing whitespaces
+            are removed from the string. Default: None.
+    """
+
+    def __init__(self, strip=True, strip_pos='both', strip_str=None):
+        assert isinstance(strip, bool)
+        assert strip_pos in ('both', 'left', 'right')
+        assert strip_str is None or isinstance(strip_str, str)
+
+        self.strip = strip
+        self.strip_pos = strip_pos
+        self.strip_str = strip_str
+
+    def __call__(self, in_str):
+
+        if not self.strip:
+            return in_str
+
+        if self.strip_pos == 'left':
+            return in_str.lstrip(self.strip_str)
+        elif self.strip_pos == 'right':
+            return in_str.rstrip(self.strip_str)
+        else:
+            return in_str.strip(self.strip_str)
diff --git a/mmocr-dev-1.x/mmocr/utils/transform_utils.py b/mmocr-dev-1.x/mmocr/utils/transform_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..4b45a82517212a67228eaad905d04bdf77d49afe
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/transform_utils.py
@@ -0,0 +1,58 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Union
+
+import numpy as np
+
+
+def remove_pipeline_elements(results: Dict,
+                             remove_inds: Union[List[int],
+                                                np.ndarray]) -> Dict:
+    """Remove elements in the pipeline given target indexes.
+
+    Args:
+        results (dict): Result dict from loading pipeline.
+        remove_inds (list(int) or np.ndarray): The element indexes to be
+            removed.
+
+    Required Keys:
+
+    - gt_polygons (optional)
+    - gt_bboxes (optional)
+    - gt_bboxes_labels (optional)
+    - gt_ignored (optional)
+    - gt_texts (optional)
+
+    Modified Keys:
+
+    - gt_polygons (optional)
+    - gt_bboxes (optional)
+    - gt_bboxes_labels (optional)
+    - gt_ignored (optional)
+    - gt_texts (optional)
+
+    Returns:
+        dict: The results with element removed.
+    """
+    keys = [
+        'gt_polygons', 'gt_bboxes', 'gt_bboxes_labels', 'gt_ignored',
+        'gt_texts'
+    ]
+    num_elements = -1
+    for key in keys:
+        if key in results:
+            num_elements = len(results[key])
+            break
+    if num_elements == -1:
+        return results
+    kept_inds = np.array(
+        [i for i in range(num_elements) if i not in remove_inds])
+    for key in keys:
+        if key in results:
+            if isinstance(results[key], np.ndarray):
+                results[key] = results[key][kept_inds]
+            elif isinstance(results[key], list):
+                results[key] = [results[key][i] for i in kept_inds]
+            else:
+                raise TypeError(
+                    f'Unsupported type {type(results[key])} for key {key}')
+    return results
diff --git a/mmocr-dev-1.x/mmocr/utils/typing_utils.py b/mmocr-dev-1.x/mmocr/utils/typing_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..592fb36e75ad17d282fe4fce70000227d7bcfa58
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/utils/typing_utils.py
@@ -0,0 +1,50 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+"""Collecting some commonly used type hint in MMOCR."""
+
+from typing import Dict, List, Optional, Sequence, Tuple, Union
+
+import numpy as np
+import torch
+from mmengine.config import ConfigDict
+from mmengine.structures import InstanceData, LabelData
+
+from mmocr import digit_version
+from mmocr.structures import (KIEDataSample, TextDetDataSample,
+                              TextRecogDataSample, TextSpottingDataSample)
+
+# Config
+ConfigType = Union[ConfigDict, Dict]
+OptConfigType = Optional[ConfigType]
+MultiConfig = Union[ConfigType, List[ConfigType]]
+OptMultiConfig = Optional[MultiConfig]
+InitConfigType = Union[Dict, List[Dict]]
+OptInitConfigType = Optional[InitConfigType]
+
+# Data
+InstanceList = List[InstanceData]
+OptInstanceList = Optional[InstanceList]
+LabelList = List[LabelData]
+OptLabelList = Optional[LabelList]
+E2ESampleList = List[TextSpottingDataSample]
+RecSampleList = List[TextRecogDataSample]
+DetSampleList = List[TextDetDataSample]
+KIESampleList = List[KIEDataSample]
+OptRecSampleList = Optional[RecSampleList]
+OptDetSampleList = Optional[DetSampleList]
+OptKIESampleList = Optional[KIESampleList]
+OptE2ESampleList = Optional[E2ESampleList]
+
+OptTensor = Optional[torch.Tensor]
+
+RecForwardResults = Union[Dict[str, torch.Tensor], List[TextRecogDataSample],
+                          Tuple[torch.Tensor], torch.Tensor]
+
+# Visualization
+ColorType = Union[str, Tuple, List[str], List[Tuple]]
+
+ArrayLike = 'ArrayLike'
+if digit_version(np.__version__) >= digit_version('1.20.0'):
+    from numpy.typing import ArrayLike as NP_ARRAY_LIKE
+    ArrayLike = NP_ARRAY_LIKE
+
+RangeType = Sequence[Tuple[int, int]]
diff --git a/mmocr-dev-1.x/mmocr/version.py b/mmocr-dev-1.x/mmocr/version.py
new file mode 100644
index 0000000000000000000000000000000000000000..e83928324b12ac13d2e2318fbcdb6b0935b354ec
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/version.py
@@ -0,0 +1,4 @@
+# Copyright (c) Open-MMLab. All rights reserved.
+
+__version__ = '1.0.0'
+short_version = __version__
diff --git a/mmocr-dev-1.x/mmocr/visualization/__init__.py b/mmocr-dev-1.x/mmocr/visualization/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..b070794bbd486e295520ba7bd141488e0574f92b
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/visualization/__init__.py
@@ -0,0 +1,11 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .base_visualizer import BaseLocalVisualizer
+from .kie_visualizer import KIELocalVisualizer
+from .textdet_visualizer import TextDetLocalVisualizer
+from .textrecog_visualizer import TextRecogLocalVisualizer
+from .textspotting_visualizer import TextSpottingLocalVisualizer
+
+__all__ = [
+    'BaseLocalVisualizer', 'KIELocalVisualizer', 'TextDetLocalVisualizer',
+    'TextRecogLocalVisualizer', 'TextSpottingLocalVisualizer'
+]
diff --git a/mmocr-dev-1.x/mmocr/visualization/base_visualizer.py b/mmocr-dev-1.x/mmocr/visualization/base_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..38b4479d330bc7700ba8d66615719e76e7a1d8d0
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/visualization/base_visualizer.py
@@ -0,0 +1,261 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+from typing import List, Optional, Sequence, Union
+
+import numpy as np
+import torch
+from matplotlib.font_manager import FontProperties
+from mmengine.visualization import Visualizer
+
+from mmocr.registry import VISUALIZERS
+
+
+@VISUALIZERS.register_module()
+class BaseLocalVisualizer(Visualizer):
+    """The MMOCR Text Detection Local Visualizer.
+
+    Args:
+        name (str): Name of the instance. Defaults to 'visualizer'.
+        image (np.ndarray, optional): the origin image to draw. The format
+            should be RGB. Defaults to None.
+        vis_backends (list, optional): Visual backend config list.
+            Default to None.
+        save_dir (str, optional): Save file dir for all storage backends.
+            If it is None, the backend storage will not save any data.
+        fig_save_cfg (dict): Keyword parameters of figure for saving.
+            Defaults to empty dict.
+        fig_show_cfg (dict): Keyword parameters of figure for showing.
+            Defaults to empty dict.
+        is_openset (bool, optional): Whether the visualizer is used in
+            OpenSet. Defaults to False.
+        font_families (Union[str, List[str]]): The font families of labels.
+            Defaults to 'sans-serif'.
+        font_properties (Union[str, FontProperties], optional):
+            The font properties of texts. The format should be a path str
+            to font file or a `font_manager.FontProperties()` object.
+            If you want to draw Chinese texts, you need to prepare
+            a font file that can show Chinese characters properly.
+            For example: `simhei.ttf`,`simsun.ttc`,`simkai.ttf` and so on.
+            Then set font_properties=matplotlib.font_manager.FontProperties
+            (fname='path/to/font_file') or font_properties='path/to/font_file'
+            This function need mmengine version >=0.6.0.
+            Defaults to None.
+    """
+    PALETTE = [(220, 20, 60), (119, 11, 32), (0, 0, 142), (0, 0, 230),
+               (106, 0, 228), (0, 60, 100), (0, 80, 100), (0, 0, 70),
+               (0, 0, 192), (250, 170, 30), (100, 170, 30), (220, 220, 0),
+               (175, 116, 175), (250, 0, 30), (165, 42, 42), (255, 77, 255),
+               (0, 226, 252), (182, 182, 255), (0, 82, 0), (120, 166, 157),
+               (110, 76, 0), (174, 57, 255), (199, 100, 0), (72, 0, 118),
+               (255, 179, 240), (0, 125, 92), (209, 0, 151), (188, 208, 182),
+               (0, 220, 176), (255, 99, 164), (92, 0, 73), (133, 129, 255),
+               (78, 180, 255), (0, 228, 0), (174, 255, 243), (45, 89, 255),
+               (134, 134, 103), (145, 148, 174), (255, 208, 186),
+               (197, 226, 255), (171, 134, 1), (109, 63, 54), (207, 138, 255),
+               (151, 0, 95), (9, 80, 61), (84, 105, 51), (74, 65, 105),
+               (166, 196, 102), (208, 195, 210), (255, 109, 65), (0, 143, 149),
+               (179, 0, 194), (209, 99, 106), (5, 121, 0), (227, 255, 205),
+               (147, 186, 208), (153, 69, 1), (3, 95, 161), (163, 255, 0),
+               (119, 0, 170), (0, 182, 199), (0, 165, 120), (183, 130, 88),
+               (95, 32, 0), (130, 114, 135), (110, 129, 133), (166, 74, 118),
+               (219, 142, 185), (79, 210, 114), (178, 90, 62), (65, 70, 15),
+               (127, 167, 115), (59, 105, 106), (142, 108, 45), (196, 172, 0),
+               (95, 54, 80), (128, 76, 255), (201, 57, 1), (246, 0, 122),
+               (191, 162, 208)]
+
+    def __init__(self,
+                 name: str = 'visualizer',
+                 font_families: Union[str, List[str]] = 'sans-serif',
+                 font_properties: Optional[Union[str, FontProperties]] = None,
+                 **kwargs) -> None:
+        super().__init__(name=name, **kwargs)
+        self.font_families = font_families
+        self.font_properties = self._set_font_properties(font_properties)
+
+    def _set_font_properties(self,
+                             fp: Optional[Union[str, FontProperties]] = None):
+        if fp is None:
+            return None
+        elif isinstance(fp, str):
+            return FontProperties(fname=fp)
+        elif isinstance(fp, FontProperties):
+            return fp
+        else:
+            raise ValueError(
+                'font_properties argument type should be'
+                ' `str` or `matplotlib.font_manager.FontProperties`')
+
+    def get_labels_image(
+        self,
+        image: np.ndarray,
+        labels: Union[np.ndarray, torch.Tensor],
+        bboxes: Union[np.ndarray, torch.Tensor],
+        colors: Union[str, Sequence[str]] = 'k',
+        font_size: Union[int, float] = 10,
+        auto_font_size: bool = False,
+        font_families: Union[str, List[str]] = 'sans-serif',
+        font_properties: Optional[Union[str, FontProperties]] = None
+    ) -> np.ndarray:
+        """Draw labels on image.
+
+        Args:
+            image (np.ndarray): The origin image to draw. The format
+                should be RGB.
+            labels (Union[np.ndarray, torch.Tensor]): The labels to draw.
+            bboxes (Union[np.ndarray, torch.Tensor]): The bboxes to draw.
+            colors (Union[str, Sequence[str]]): The colors of labels.
+                ``colors`` can have the same length with labels or just single
+                value. If ``colors`` is single value, all the labels will have
+                the same colors. Refer to `matplotlib.colors` for full list of
+                formats that are accepted. Defaults to 'k'.
+            font_size (Union[int, float]): The font size of labels. Defaults
+                to 10.
+            auto_font_size (bool): Whether to automatically adjust font size.
+                Defaults to False.
+            font_families (Union[str, List[str]]): The font families of labels.
+                Defaults to 'sans-serif'.
+            font_properties (Union[str, FontProperties], optional):
+                The font properties of texts. The format should be a path str
+                to font file or a `font_manager.FontProperties()` object.
+                If you want to draw Chinese texts, you need to prepare
+                a font file that can show Chinese characters properly.
+                For example: `simhei.ttf`,`simsun.ttc`,`simkai.ttf` and so on.
+                Then set font_properties=matplotlib.font_manager.FontProperties
+                (fname='path/to/font_file') or
+                font_properties='path/to/font_file'.
+                This function need mmengine version >=0.6.0.
+                Defaults to None.
+        """
+        if not labels and not bboxes:
+            return image
+        if colors is not None and isinstance(colors, (list, tuple)):
+            size = math.ceil(len(labels) / len(colors))
+            colors = (colors * size)[:len(labels)]
+        if auto_font_size:
+            assert font_size is not None and isinstance(
+                font_size, (int, float))
+            font_size = (bboxes[:, 2:] - bboxes[:, :2]).min(-1) * font_size
+            font_size = font_size.tolist()
+        self.set_image(image)
+        self.draw_texts(
+            labels, (bboxes[:, :2] + bboxes[:, 2:]) / 2,
+            vertical_alignments='center',
+            horizontal_alignments='center',
+            colors='k',
+            font_sizes=font_size,
+            font_families=font_families,
+            font_properties=font_properties)
+        return self.get_image()
+
+    def get_polygons_image(self,
+                           image: np.ndarray,
+                           polygons: Sequence[np.ndarray],
+                           colors: Union[str, Sequence[str]] = 'g',
+                           filling: bool = False,
+                           line_width: Union[int, float] = 0.5,
+                           alpha: float = 0.5) -> np.ndarray:
+        """Draw polygons on image.
+
+        Args:
+            image (np.ndarray): The origin image to draw. The format
+                should be RGB.
+            polygons (Sequence[np.ndarray]): The polygons to draw. The shape
+                should be (N, 2).
+            colors (Union[str, Sequence[str]]): The colors of polygons.
+                ``colors`` can have the same length with polygons or just
+                single value. If ``colors`` is single value, all the polygons
+                will have the same colors. Refer to `matplotlib.colors` for
+                full list of formats that are accepted. Defaults to 'g'.
+            filling (bool): Whether to fill the polygons. Defaults to False.
+            line_width (Union[int, float]): The line width of polygons.
+                Defaults to 0.5.
+            alpha (float): The alpha of polygons. Defaults to 0.5.
+
+        Returns:
+            np.ndarray: The image with polygons drawn.
+        """
+        if colors is not None and isinstance(colors, (list, tuple)):
+            size = math.ceil(len(polygons) / len(colors))
+            colors = (colors * size)[:len(polygons)]
+        self.set_image(image)
+        if filling:
+            self.draw_polygons(
+                polygons,
+                face_colors=colors,
+                edge_colors=colors,
+                line_widths=line_width,
+                alpha=alpha)
+        else:
+            self.draw_polygons(
+                polygons,
+                edge_colors=colors,
+                line_widths=line_width,
+                alpha=alpha)
+        return self.get_image()
+
+    def get_bboxes_image(self: Visualizer,
+                         image: np.ndarray,
+                         bboxes: Union[np.ndarray, torch.Tensor],
+                         colors: Union[str, Sequence[str]] = 'g',
+                         filling: bool = False,
+                         line_width: Union[int, float] = 0.5,
+                         alpha: float = 0.5) -> np.ndarray:
+        """Draw bboxes on image.
+
+        Args:
+            image (np.ndarray): The origin image to draw. The format
+                should be RGB.
+            bboxes (Union[np.ndarray, torch.Tensor]): The bboxes to draw.
+            colors (Union[str, Sequence[str]]): The colors of bboxes.
+                ``colors`` can have the same length with bboxes or just single
+                value. If ``colors`` is single value, all the bboxes will have
+                the same colors. Refer to `matplotlib.colors` for full list of
+                formats that are accepted. Defaults to 'g'.
+            filling (bool): Whether to fill the bboxes. Defaults to False.
+            line_width (Union[int, float]): The line width of bboxes.
+                Defaults to 0.5.
+            alpha (float): The alpha of bboxes. Defaults to 0.5.
+
+        Returns:
+            np.ndarray: The image with bboxes drawn.
+        """
+        if colors is not None and isinstance(colors, (list, tuple)):
+            size = math.ceil(len(bboxes) / len(colors))
+            colors = (colors * size)[:len(bboxes)]
+        self.set_image(image)
+        if filling:
+            self.draw_bboxes(
+                bboxes,
+                face_colors=colors,
+                edge_colors=colors,
+                line_widths=line_width,
+                alpha=alpha)
+        else:
+            self.draw_bboxes(
+                bboxes,
+                edge_colors=colors,
+                line_widths=line_width,
+                alpha=alpha)
+        return self.get_image()
+
+    def _draw_instances(self) -> np.ndarray:
+        raise NotImplementedError
+
+    def _cat_image(self, imgs: Sequence[np.ndarray], axis: int) -> np.ndarray:
+        """Concatenate images.
+
+        Args:
+            imgs (Sequence[np.ndarray]): The images to concatenate.
+            axis (int): The axis to concatenate.
+
+        Returns:
+            np.ndarray: The concatenated image.
+        """
+        cat_image = list()
+        for img in imgs:
+            if img is not None:
+                cat_image.append(img)
+        if len(cat_image):
+            return np.concatenate(cat_image, axis=axis)
+        else:
+            return None
diff --git a/mmocr-dev-1.x/mmocr/visualization/kie_visualizer.py b/mmocr-dev-1.x/mmocr/visualization/kie_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..753bac2e9b6387cf5c9908f19d4d15389269eb22
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/visualization/kie_visualizer.py
@@ -0,0 +1,402 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import warnings
+from typing import Dict, List, Optional, Sequence, Union
+
+import mmcv
+import numpy as np
+import torch
+from matplotlib.collections import PatchCollection
+from matplotlib.patches import FancyArrow
+from mmengine.visualization import Visualizer
+from mmengine.visualization.utils import (check_type, check_type_and_length,
+                                          color_val_matplotlib, tensor2ndarray,
+                                          value2list)
+
+from mmocr.registry import VISUALIZERS
+from mmocr.structures import KIEDataSample
+from .base_visualizer import BaseLocalVisualizer
+
+
+@VISUALIZERS.register_module()
+class KIELocalVisualizer(BaseLocalVisualizer):
+    """The MMOCR Text Detection Local Visualizer.
+
+    Args:
+        name (str): Name of the instance. Defaults to 'visualizer'.
+        image (np.ndarray, optional): the origin image to draw. The format
+            should be RGB. Defaults to None.
+        vis_backends (list, optional): Visual backend config list.
+            Default to None.
+        save_dir (str, optional): Save file dir for all storage backends.
+            If it is None, the backend storage will not save any data.
+        fig_save_cfg (dict): Keyword parameters of figure for saving.
+            Defaults to empty dict.
+        fig_show_cfg (dict): Keyword parameters of figure for showing.
+            Defaults to empty dict.
+        is_openset (bool, optional): Whether the visualizer is used in
+            OpenSet. Defaults to False.
+    """
+
+    def __init__(self,
+                 name: str = 'kie_visualizer',
+                 is_openset: bool = False,
+                 **kwargs) -> None:
+        super().__init__(name=name, **kwargs)
+        self.is_openset = is_openset
+
+    def _draw_edge_label(self,
+                         image: np.ndarray,
+                         edge_labels: Union[np.ndarray, torch.Tensor],
+                         bboxes: Union[np.ndarray, torch.Tensor],
+                         texts: Sequence[str],
+                         arrow_colors: str = 'g') -> np.ndarray:
+        """Draw edge labels on image.
+
+        Args:
+            image (np.ndarray): The origin image to draw. The format
+                should be RGB.
+            edge_labels (np.ndarray or torch.Tensor): The edge labels to draw.
+                The shape of edge_labels should be (N, N), where N is the
+                number of texts.
+            bboxes (np.ndarray or torch.Tensor): The bboxes to draw. The shape
+                of bboxes should be (N, 4), where N is the number of texts.
+            texts (Sequence[str]): The texts to draw. The length of texts
+                should be the same as the number of bboxes.
+            arrow_colors (str, optional): The colors of arrows. Refer to
+                `matplotlib.colors` for full list of formats that are accepted.
+                Defaults to 'g'.
+
+        Returns:
+            np.ndarray: The image with edge labels drawn.
+        """
+        pairs = np.where(edge_labels > 0)
+        if torch.is_tensor(pairs):
+            pairs = pairs.cpu()
+        key_bboxes = bboxes[pairs[0]]
+        value_bboxes = bboxes[pairs[1]]
+        x_data = np.stack([(key_bboxes[:, 2] + key_bboxes[:, 0]) / 2,
+                           (value_bboxes[:, 0] + value_bboxes[:, 2]) / 2],
+                          axis=-1)
+        y_data = np.stack([(key_bboxes[:, 1] + key_bboxes[:, 3]) / 2,
+                           (value_bboxes[:, 1] + value_bboxes[:, 3]) / 2],
+                          axis=-1)
+        key_index = np.array(list(set(pairs[0])))
+        val_index = np.array(list(set(pairs[1])))
+        key_texts = [texts[i] for i in key_index]
+        val_texts = [texts[i] for i in val_index]
+
+        self.set_image(image)
+        if key_texts:
+            self.draw_texts(
+                key_texts, (bboxes[key_index, :2] + bboxes[key_index, 2:]) / 2,
+                colors='k',
+                horizontal_alignments='center',
+                vertical_alignments='center',
+                font_families=self.font_families,
+                font_properties=self.font_properties)
+        if val_texts:
+            self.draw_texts(
+                val_texts, (bboxes[val_index, :2] + bboxes[val_index, 2:]) / 2,
+                colors='k',
+                horizontal_alignments='center',
+                vertical_alignments='center',
+                font_families=self.font_families,
+                font_properties=self.font_properties)
+        self.draw_arrows(
+            x_data,
+            y_data,
+            colors=arrow_colors,
+            line_widths=0.3,
+            arrow_tail_widths=0.05,
+            arrow_head_widths=5,
+            overhangs=1,
+            arrow_shapes='full')
+        return self.get_image()
+
+    def _draw_instances(
+        self,
+        image: np.ndarray,
+        bbox_labels: Union[np.ndarray, torch.Tensor],
+        bboxes: Union[np.ndarray, torch.Tensor],
+        polygons: Sequence[np.ndarray],
+        edge_labels: Union[np.ndarray, torch.Tensor],
+        texts: Sequence[str],
+        class_names: Dict,
+        is_openset: bool = False,
+        arrow_colors: str = 'g',
+    ) -> np.ndarray:
+        """Draw instances on image.
+
+        Args:
+            image (np.ndarray): The origin image to draw. The format
+                should be RGB.
+            bbox_labels (np.ndarray or torch.Tensor): The bbox labels to draw.
+                The shape of bbox_labels should be (N,), where N is the
+                number of texts.
+            bboxes (np.ndarray or torch.Tensor): The bboxes to draw. The shape
+                of bboxes should be (N, 4), where N is the number of texts.
+            polygons (Sequence[np.ndarray]): The polygons to draw. The length
+                of polygons should be the same as the number of bboxes.
+            edge_labels (np.ndarray or torch.Tensor): The edge labels to draw.
+                The shape of edge_labels should be (N, N), where N is the
+                number of texts.
+            texts (Sequence[str]): The texts to draw. The length of texts
+                should be the same as the number of bboxes.
+            class_names (dict): The class names for bbox labels.
+            is_openset (bool): Whether the dataset is openset. Defaults to
+                False.
+            arrow_colors (str, optional): The colors of arrows. Refer to
+                `matplotlib.colors` for full list of formats that are accepted.
+                Defaults to 'g'.
+
+        Returns:
+            np.ndarray: The image with instances drawn.
+        """
+        img_shape = image.shape[:2]
+        empty_shape = (img_shape[0], img_shape[1], 3)
+
+        text_image = np.full(empty_shape, 255, dtype=np.uint8)
+        text_image = self.get_labels_image(
+            text_image,
+            texts,
+            bboxes,
+            font_families=self.font_families,
+            font_properties=self.font_properties)
+
+        classes_image = np.full(empty_shape, 255, dtype=np.uint8)
+        bbox_classes = [class_names[int(i)]['name'] for i in bbox_labels]
+        classes_image = self.get_labels_image(
+            classes_image,
+            bbox_classes,
+            bboxes,
+            font_families=self.font_families,
+            font_properties=self.font_properties)
+        if polygons:
+            polygons = [polygon.reshape(-1, 2) for polygon in polygons]
+            image = self.get_polygons_image(
+                image, polygons, filling=True, colors=self.PALETTE)
+            text_image = self.get_polygons_image(
+                text_image, polygons, colors=self.PALETTE)
+            classes_image = self.get_polygons_image(
+                classes_image, polygons, colors=self.PALETTE)
+        else:
+            image = self.get_bboxes_image(
+                image, bboxes, filling=True, colors=self.PALETTE)
+            text_image = self.get_bboxes_image(
+                text_image, bboxes, colors=self.PALETTE)
+            classes_image = self.get_bboxes_image(
+                classes_image, bboxes, colors=self.PALETTE)
+        cat_image = [image, text_image, classes_image]
+        if is_openset:
+            edge_image = np.full(empty_shape, 255, dtype=np.uint8)
+            edge_image = self._draw_edge_label(edge_image, edge_labels, bboxes,
+                                               texts, arrow_colors)
+            cat_image.append(edge_image)
+        return self._cat_image(cat_image, axis=1)
+
+    def add_datasample(self,
+                       name: str,
+                       image: np.ndarray,
+                       data_sample: Optional['KIEDataSample'] = None,
+                       draw_gt: bool = True,
+                       draw_pred: bool = True,
+                       show: bool = False,
+                       wait_time: int = 0,
+                       pred_score_thr: float = None,
+                       out_file: Optional[str] = None,
+                       step: int = 0) -> None:
+        """Draw datasample and save to all backends.
+
+        - If GT and prediction are plotted at the same time, they are
+        displayed in a stitched image where the left image is the
+        ground truth and the right image is the prediction.
+        - If ``show`` is True, all storage backends are ignored, and
+        the images will be displayed in a local window.
+        - If ``out_file`` is specified, the drawn image will be
+        saved to ``out_file``. This is usually used when the display
+        is not available.
+
+        Args:
+            name (str): The image identifier.
+            image (np.ndarray): The image to draw.
+            data_sample (:obj:`KIEDataSample`, optional):
+                KIEDataSample which contains gt and prediction. Defaults
+                    to None.
+            draw_gt (bool): Whether to draw GT KIEDataSample.
+                Defaults to True.
+            draw_pred (bool): Whether to draw Predicted KIEDataSample.
+                Defaults to True.
+            show (bool): Whether to display the drawn image. Default to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            pred_score_thr (float): The threshold to visualize the bboxes
+                and masks. Defaults to 0.3.
+            out_file (str): Path to output file. Defaults to None.
+            step (int): Global step value to record. Defaults to 0.
+        """
+        cat_images = list()
+
+        if draw_gt:
+            gt_bboxes = data_sample.gt_instances.bboxes
+            gt_labels = data_sample.gt_instances.labels
+            gt_texts = data_sample.gt_instances.texts
+            gt_polygons = data_sample.gt_instances.get('polygons', None)
+            gt_edge_labels = data_sample.gt_instances.get('edge_labels', None)
+            gt_img_data = self._draw_instances(image, gt_labels, gt_bboxes,
+                                               gt_polygons, gt_edge_labels,
+                                               gt_texts,
+                                               self.dataset_meta['category'],
+                                               self.is_openset, 'g')
+            cat_images.append(gt_img_data)
+        if draw_pred:
+            gt_bboxes = data_sample.gt_instances.bboxes
+            pred_labels = data_sample.pred_instances.labels
+            gt_texts = data_sample.gt_instances.texts
+            gt_polygons = data_sample.gt_instances.get('polygons', None)
+            pred_edge_labels = data_sample.pred_instances.get(
+                'edge_labels', None)
+            pred_img_data = self._draw_instances(image, pred_labels, gt_bboxes,
+                                                 gt_polygons, pred_edge_labels,
+                                                 gt_texts,
+                                                 self.dataset_meta['category'],
+                                                 self.is_openset, 'r')
+            cat_images.append(pred_img_data)
+
+        cat_images = self._cat_image(cat_images, axis=0)
+        if cat_images is None:
+            cat_images = image
+
+        if show:
+            self.show(cat_images, win_name=name, wait_time=wait_time)
+        else:
+            self.add_image(name, cat_images, step)
+
+        if out_file is not None:
+            mmcv.imwrite(cat_images[..., ::-1], out_file)
+
+        self.set_image(cat_images)
+        return self.get_image()
+
+    def draw_arrows(self,
+                    x_data: Union[np.ndarray, torch.Tensor],
+                    y_data: Union[np.ndarray, torch.Tensor],
+                    colors: Union[str, tuple, List[str], List[tuple]] = 'C1',
+                    line_widths: Union[Union[int, float],
+                                       List[Union[int, float]]] = 1,
+                    line_styles: Union[str, List[str]] = '-',
+                    arrow_tail_widths: Union[Union[int, float],
+                                             List[Union[int, float]]] = 0.001,
+                    arrow_head_widths: Union[Union[int, float],
+                                             List[Union[int, float]]] = None,
+                    arrow_head_lengths: Union[Union[int, float],
+                                              List[Union[int, float]]] = None,
+                    arrow_shapes: Union[str, List[str]] = 'full',
+                    overhangs: Union[int, List[int]] = 0) -> 'Visualizer':
+        """Draw single or multiple arrows.
+
+        Args:
+            x_data (np.ndarray or torch.Tensor): The x coordinate of
+                each line' start and end points.
+            y_data (np.ndarray, torch.Tensor): The y coordinate of
+                each line' start and end points.
+            colors (str or tuple or list[str or tuple]): The colors of
+                lines. ``colors`` can have the same length with lines or just
+                single value. If ``colors`` is single value, all the lines
+                will have the same colors. Reference to
+                https://matplotlib.org/stable/gallery/color/named_colors.html
+                for more details. Defaults to 'g'.
+            line_widths (int or float or list[int or float]):
+                The linewidth of lines. ``line_widths`` can have
+                the same length with lines or just single value.
+                If ``line_widths`` is single value, all the lines will
+                have the same linewidth. Defaults to 2.
+            line_styles (str or list[str]]): The linestyle of lines.
+                ``line_styles`` can have the same length with lines or just
+                single value. If ``line_styles`` is single value, all the
+                lines will have the same linestyle. Defaults to '-'.
+            arrow_tail_widths (int or float or list[int, float]):
+                The width of arrow tails. ``arrow_tail_widths`` can have
+                the same length with lines or just single value. If
+                ``arrow_tail_widths`` is single value, all the lines will
+                have the same width. Defaults to 0.001.
+            arrow_head_widths (int or float or list[int, float]):
+                The width of arrow heads. ``arrow_head_widths`` can have
+                the same length with lines or just single value. If
+                ``arrow_head_widths`` is single value, all the lines will
+                have the same width. Defaults to None.
+            arrow_head_lengths (int or float or list[int, float]):
+                The length of arrow heads. ``arrow_head_lengths`` can have
+                the same length with lines or just single value. If
+                ``arrow_head_lengths`` is single value, all the lines will
+                have the same length. Defaults to None.
+            arrow_shapes (str or list[str]]): The shapes of arrow heads.
+                ``arrow_shapes`` can have the same length with lines or just
+                single value. If ``arrow_shapes`` is single value, all the
+                lines will have the same shape. Defaults to 'full'.
+            overhangs (int or list[int]]): The overhangs of arrow heads.
+                ``overhangs`` can have the same length with lines or just
+                single value. If ``overhangs`` is single value, all the lines
+                will have the same overhangs. Defaults to 0.
+        """
+        check_type('x_data', x_data, (np.ndarray, torch.Tensor))
+        x_data = tensor2ndarray(x_data)
+        check_type('y_data', y_data, (np.ndarray, torch.Tensor))
+        y_data = tensor2ndarray(y_data)
+        assert x_data.shape == y_data.shape, (
+            '`x_data` and `y_data` should have the same shape')
+        assert x_data.shape[-1] == 2, (
+            f'The shape of `x_data` should be (N, 2), but got {x_data.shape}')
+        if len(x_data.shape) == 1:
+            x_data = x_data[None]
+            y_data = y_data[None]
+        number_arrow = x_data.shape[0]
+        check_type_and_length('colors', colors, (str, tuple, list),
+                              number_arrow)
+        colors = value2list(colors, (str, tuple), number_arrow)
+        colors = color_val_matplotlib(colors)  # type: ignore
+        check_type_and_length('line_widths', line_widths, (int, float),
+                              number_arrow)
+        line_widths = value2list(line_widths, (int, float), number_arrow)
+        check_type_and_length('arrow_tail_widths', arrow_tail_widths,
+                              (int, float), number_arrow)
+        check_type_and_length('line_styles', line_styles, str, number_arrow)
+        line_styles = value2list(line_styles, str, number_arrow)
+        arrow_tail_widths = value2list(arrow_tail_widths, (int, float),
+                                       number_arrow)
+        check_type_and_length('arrow_head_widths', arrow_head_widths,
+                              (int, float, type(None)), number_arrow)
+        arrow_head_widths = value2list(arrow_head_widths,
+                                       (int, float, type(None)), number_arrow)
+        check_type_and_length('arrow_head_lengths', arrow_head_lengths,
+                              (int, float, type(None)), number_arrow)
+        arrow_head_lengths = value2list(arrow_head_lengths,
+                                        (int, float, type(None)), number_arrow)
+        check_type_and_length('arrow_shapes', arrow_shapes, (str, list),
+                              number_arrow)
+        arrow_shapes = value2list(arrow_shapes, (str, list), number_arrow)
+        check_type('overhang', overhangs, int)
+        overhangs = value2list(overhangs, int, number_arrow)
+
+        lines = np.concatenate(
+            (x_data.reshape(-1, 2, 1), y_data.reshape(-1, 2, 1)), axis=-1)
+        if not self._is_posion_valid(lines):
+            warnings.warn(
+                'Warning: The line is out of bounds,'
+                ' the drawn line may not be in the image', UserWarning)
+        arrows = []
+        for i in range(number_arrow):
+            arrows.append(
+                FancyArrow(
+                    *tuple(lines[i, 0]),
+                    *tuple(lines[i, 1] - lines[i, 0]),
+                    linestyle=line_styles[i],
+                    color=colors[i],
+                    length_includes_head=True,
+                    width=arrow_tail_widths[i],
+                    head_width=arrow_head_widths[i],
+                    head_length=arrow_head_lengths[i],
+                    overhang=overhangs[i],
+                    shape=arrow_shapes[i],
+                    linewidth=line_widths[i]))
+        p = PatchCollection(arrows, match_original=True)
+        self.ax_save.add_collection(p)
+        return self
diff --git a/mmocr-dev-1.x/mmocr/visualization/textdet_visualizer.py b/mmocr-dev-1.x/mmocr/visualization/textdet_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..8b3f54da13984a77ec7ed7a13f3773bed00fc8e3
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/visualization/textdet_visualizer.py
@@ -0,0 +1,194 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence, Tuple, Union
+
+import mmcv
+import numpy as np
+import torch
+
+from mmocr.registry import VISUALIZERS
+from mmocr.structures import TextDetDataSample
+from .base_visualizer import BaseLocalVisualizer
+
+
+@VISUALIZERS.register_module()
+class TextDetLocalVisualizer(BaseLocalVisualizer):
+    """The MMOCR Text Detection Local Visualizer.
+
+    Args:
+        name (str): Name of the instance. Defaults to 'visualizer'.
+        image (np.ndarray, optional): The origin image to draw. The format
+            should be RGB. Defaults to None.
+        with_poly (bool): Whether to draw polygons. Defaults to True.
+        with_bbox (bool): Whether to draw bboxes. Defaults to False.
+        vis_backends (list, optional): Visual backend config list.
+            Defaults to None.
+        save_dir (str, optional): Save file dir for all storage backends.
+            If it is None, the backend storage will not save any data.
+        gt_color (Union[str, tuple, list[str], list[tuple]]): The
+            colors of GT polygons and bboxes. ``colors`` can have the same
+            length with lines or just single value. If ``colors`` is single
+            value, all the lines will have the same colors. Refer to
+            `matplotlib.colors` for full list of formats that are accepted.
+            Defaults to 'g'.
+        gt_ignored_color (Union[str, tuple, list[str], list[tuple]]): The
+            colors of ignored GT polygons and bboxes. ``colors`` can have
+            the same length with lines or just single value. If ``colors``
+            is single value, all the lines will have the same colors. Refer
+            to `matplotlib.colors` for full list of formats that are accepted.
+            Defaults to 'b'.
+        pred_color (Union[str, tuple, list[str], list[tuple]]): The
+            colors of pred polygons and bboxes. ``colors`` can have the same
+            length with lines or just single value. If ``colors`` is single
+            value, all the lines will have the same colors. Refer to
+            `matplotlib.colors` for full list of formats that are accepted.
+            Defaults to 'r'.
+        line_width (int, float): The linewidth of lines. Defaults to 2.
+        alpha (float): The transparency of bboxes or polygons. Defaults to 0.8.
+    """
+
+    def __init__(self,
+                 name: str = 'visualizer',
+                 image: Optional[np.ndarray] = None,
+                 with_poly: bool = True,
+                 with_bbox: bool = False,
+                 vis_backends: Optional[Dict] = None,
+                 save_dir: Optional[str] = None,
+                 gt_color: Union[str, Tuple, List[str], List[Tuple]] = 'g',
+                 gt_ignored_color: Union[str, Tuple, List[str],
+                                         List[Tuple]] = 'b',
+                 pred_color: Union[str, Tuple, List[str], List[Tuple]] = 'r',
+                 line_width: Union[int, float] = 2,
+                 alpha: float = 0.8) -> None:
+        super().__init__(
+            name=name,
+            image=image,
+            vis_backends=vis_backends,
+            save_dir=save_dir)
+        self.with_poly = with_poly
+        self.with_bbox = with_bbox
+        self.gt_color = gt_color
+        self.gt_ignored_color = gt_ignored_color
+        self.pred_color = pred_color
+        self.line_width = line_width
+        self.alpha = alpha
+
+    def _draw_instances(
+        self,
+        image: np.ndarray,
+        bboxes: Union[np.ndarray, torch.Tensor],
+        polygons: Sequence[np.ndarray],
+        color: Union[str, Tuple, List[str], List[Tuple]] = 'g',
+    ) -> np.ndarray:
+        """Draw bboxes and polygons on image.
+
+        Args:
+            image (np.ndarray): The origin image to draw.
+            bboxes (Union[np.ndarray, torch.Tensor]): The bboxes to draw.
+            polygons (Sequence[np.ndarray]): The polygons to draw.
+            color (Union[str, tuple, list[str], list[tuple]]): The
+                colors of polygons and bboxes. ``colors`` can have the same
+                length with lines or just single value. If ``colors`` is
+                single value, all the lines will have the same colors. Refer
+                to `matplotlib.colors` for full list of formats that are
+                accepted. Defaults to 'g'.
+
+        Returns:
+            np.ndarray: The image with bboxes and polygons drawn.
+        """
+        if polygons is not None and self.with_poly:
+            polygons = [polygon.reshape(-1, 2) for polygon in polygons]
+            image = self.get_polygons_image(
+                image, polygons, filling=True, colors=color, alpha=self.alpha)
+        if bboxes is not None and self.with_bbox:
+            image = self.get_bboxes_image(
+                image,
+                bboxes,
+                colors=color,
+                line_width=self.line_width,
+                alpha=self.alpha)
+        return image
+
+    def add_datasample(self,
+                       name: str,
+                       image: np.ndarray,
+                       data_sample: Optional['TextDetDataSample'] = None,
+                       draw_gt: bool = True,
+                       draw_pred: bool = True,
+                       show: bool = False,
+                       wait_time: int = 0,
+                       out_file: Optional[str] = None,
+                       pred_score_thr: float = 0.3,
+                       step: int = 0) -> None:
+        """Draw datasample and save to all backends.
+
+        - If GT and prediction are plotted at the same time, they are
+        displayed in a stitched image where the left image is the
+        ground truth and the right image is the prediction.
+        - If ``show`` is True, all storage backends are ignored, and
+        the images will be displayed in a local window.
+        - If ``out_file`` is specified, the drawn image will be
+        saved to ``out_file``. This is usually used when the display
+        is not available.
+
+        Args:
+            name (str): The image identifier.
+            image (np.ndarray): The image to draw.
+            data_sample (:obj:`TextDetDataSample`, optional):
+                TextDetDataSample which contains gt and prediction. Defaults
+                    to None.
+            draw_gt (bool): Whether to draw GT TextDetDataSample.
+                Defaults to True.
+            draw_pred (bool): Whether to draw Predicted TextDetDataSample.
+                Defaults to True.
+            show (bool): Whether to display the drawn image. Default to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            out_file (str): Path to output file. Defaults to None.
+            pred_score_thr (float): The threshold to visualize the bboxes
+                and masks. Defaults to 0.3.
+            step (int): Global step value to record. Defaults to 0.
+        """
+        cat_images = []
+        if data_sample is not None:
+            if draw_gt and 'gt_instances' in data_sample:
+                gt_instances = data_sample.gt_instances
+                gt_img_data = image.copy()
+                if gt_instances.get('ignored', None) is not None:
+                    ignore_flags = gt_instances.ignored
+                    gt_ignored_instances = gt_instances[ignore_flags]
+                    gt_ignored_polygons = gt_ignored_instances.get(
+                        'polygons', None)
+                    gt_ignored_bboxes = gt_ignored_instances.get(
+                        'bboxes', None)
+                    gt_img_data = self._draw_instances(gt_img_data,
+                                                       gt_ignored_bboxes,
+                                                       gt_ignored_polygons,
+                                                       self.gt_ignored_color)
+                    gt_instances = gt_instances[~ignore_flags]
+                gt_polygons = gt_instances.get('polygons', None)
+                gt_bboxes = gt_instances.get('bboxes', None)
+                gt_img_data = self._draw_instances(gt_img_data, gt_bboxes,
+                                                   gt_polygons, self.gt_color)
+                cat_images.append(gt_img_data)
+            if draw_pred and 'pred_instances' in data_sample:
+                pred_instances = data_sample.pred_instances
+                pred_instances = pred_instances[
+                    pred_instances.scores > pred_score_thr].cpu()
+                pred_polygons = pred_instances.get('polygons', None)
+                pred_bboxes = pred_instances.get('bboxes', None)
+                pred_img_data = self._draw_instances(image.copy(), pred_bboxes,
+                                                     pred_polygons,
+                                                     self.pred_color)
+                cat_images.append(pred_img_data)
+        cat_images = self._cat_image(cat_images, axis=1)
+        if cat_images is None:
+            cat_images = image
+        if show:
+            self.show(cat_images, win_name=name, wait_time=wait_time)
+        else:
+            self.add_image(name, cat_images, step)
+
+        if out_file is not None:
+            mmcv.imwrite(cat_images[..., ::-1], out_file)
+
+        self.set_image(cat_images)
+        return self.get_image()
diff --git a/mmocr-dev-1.x/mmocr/visualization/textrecog_visualizer.py b/mmocr-dev-1.x/mmocr/visualization/textrecog_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..d2f529b47f40b97d46ffdd73ee467da46e2e92c4
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/visualization/textrecog_visualizer.py
@@ -0,0 +1,144 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Tuple, Union
+
+import cv2
+import mmcv
+import numpy as np
+
+from mmocr.registry import VISUALIZERS
+from mmocr.structures import TextRecogDataSample
+from .base_visualizer import BaseLocalVisualizer
+
+
+@VISUALIZERS.register_module()
+class TextRecogLocalVisualizer(BaseLocalVisualizer):
+    """MMOCR Text Detection Local Visualizer.
+
+    Args:
+        name (str): Name of the instance. Defaults to 'visualizer'.
+        image (np.ndarray, optional): The origin image to draw. The format
+            should be RGB. Defaults to None.
+        vis_backends (list, optional): Visual backend config list.
+            Defaults to None.
+        save_dir (str, optional): Save file dir for all storage backends.
+            If it is None, the backend storage will not save any data.
+        gt_color (str or tuple[int, int, int]): Colors of GT text. The tuple of
+            color should be in RGB order. Or using an abbreviation of color,
+            such as `'g'` for `'green'`. Defaults to 'g'.
+        pred_color (str or tuple[int, int, int]): Colors of Predicted text.
+            The tuple of color should be in RGB order. Or using an abbreviation
+            of color, such as `'r'` for `'red'`. Defaults to 'r'.
+    """
+
+    def __init__(self,
+                 name: str = 'visualizer',
+                 image: Optional[np.ndarray] = None,
+                 vis_backends: Optional[Dict] = None,
+                 save_dir: Optional[str] = None,
+                 gt_color: Optional[Union[str, Tuple[int, int, int]]] = 'g',
+                 pred_color: Optional[Union[str, Tuple[int, int, int]]] = 'r',
+                 **kwargs) -> None:
+        super().__init__(
+            name=name,
+            image=image,
+            vis_backends=vis_backends,
+            save_dir=save_dir,
+            **kwargs)
+        self.gt_color = gt_color
+        self.pred_color = pred_color
+
+    def _draw_instances(self, image: np.ndarray, text: str) -> np.ndarray:
+        """Draw text on image.
+
+        Args:
+            image (np.ndarray): The image to draw.
+            text (str): The text to draw.
+
+        Returns:
+            np.ndarray: The image with text drawn.
+        """
+        height, width = image.shape[:2]
+        empty_img = np.full_like(image, 255)
+        self.set_image(empty_img)
+        font_size = min(0.5 * width / (len(text) + 1), 0.5 * height)
+        self.draw_texts(
+            text,
+            np.array([width / 2, height / 2]),
+            colors=self.gt_color,
+            font_sizes=font_size,
+            vertical_alignments='center',
+            horizontal_alignments='center',
+            font_families=self.font_families,
+            font_properties=self.font_properties)
+        text_image = self.get_image()
+        return text_image
+
+    def add_datasample(self,
+                       name: str,
+                       image: np.ndarray,
+                       data_sample: Optional['TextRecogDataSample'] = None,
+                       draw_gt: bool = True,
+                       draw_pred: bool = True,
+                       show: bool = False,
+                       wait_time: int = 0,
+                       pred_score_thr: float = None,
+                       out_file: Optional[str] = None,
+                       step=0) -> None:
+        """Visualize datasample and save to all backends.
+
+        - If GT and prediction are plotted at the same time, they are
+        displayed in a stitched image where the left image is the
+        ground truth and the right image is the prediction.
+        - If ``show`` is True, all storage backends are ignored, and
+        the images will be displayed in a local window.
+        - If ``out_file`` is specified, the drawn image will be
+        saved to ``out_file``. This is usually used when the display
+        is not available.
+
+        Args:
+            name (str): The image title. Defaults to 'image'.
+            image (np.ndarray): The image to draw.
+            data_sample (:obj:`TextRecogDataSample`, optional):
+                TextRecogDataSample which contains gt and prediction.
+                Defaults to None.
+            draw_gt (bool): Whether to draw GT TextRecogDataSample.
+                Defaults to True.
+            draw_pred (bool): Whether to draw Predicted TextRecogDataSample.
+                Defaults to True.
+            show (bool): Whether to display the drawn image. Defaults to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            out_file (str): Path to output file. Defaults to None.
+            step (int): Global step value to record. Defaults to 0.
+            pred_score_thr (float): Threshold of prediction score. It's not
+                used in this function. Defaults to None.
+        """
+        height, width = image.shape[:2]
+        resize_height = 64
+        resize_width = int(1.0 * width / height * resize_height)
+        image = cv2.resize(image, (resize_width, resize_height))
+
+        if image.ndim == 2:
+            image = cv2.cvtColor(image, cv2.COLOR_GRAY2RGB)
+
+        cat_images = [image]
+        if (draw_gt and data_sample is not None and 'gt_text' in data_sample
+                and 'item' in data_sample.gt_text):
+            gt_text = data_sample.gt_text.item
+            cat_images.append(self._draw_instances(image, gt_text))
+        if (draw_pred and data_sample is not None
+                and 'pred_text' in data_sample
+                and 'item' in data_sample.pred_text):
+            pred_text = data_sample.pred_text.item
+            cat_images.append(self._draw_instances(image, pred_text))
+        cat_images = self._cat_image(cat_images, axis=0)
+
+        if show:
+            self.show(cat_images, win_name=name, wait_time=wait_time)
+        else:
+            self.add_image(name, cat_images, step)
+
+        if out_file is not None:
+            mmcv.imwrite(cat_images[..., ::-1], out_file)
+
+        self.set_image(cat_images)
+        return self.get_image()
diff --git a/mmocr-dev-1.x/mmocr/visualization/textspotting_visualizer.py b/mmocr-dev-1.x/mmocr/visualization/textspotting_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..bd4038c35aadfc346e2b370d5a361462acdaf326
--- /dev/null
+++ b/mmocr-dev-1.x/mmocr/visualization/textspotting_visualizer.py
@@ -0,0 +1,144 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Optional, Sequence, Union
+
+import mmcv
+import numpy as np
+import torch
+
+from mmocr.registry import VISUALIZERS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils.polygon_utils import poly2bbox
+from .base_visualizer import BaseLocalVisualizer
+
+
+@VISUALIZERS.register_module()
+class TextSpottingLocalVisualizer(BaseLocalVisualizer):
+
+    def _draw_instances(
+        self,
+        image: np.ndarray,
+        bboxes: Union[np.ndarray, torch.Tensor],
+        polygons: Sequence[np.ndarray],
+        texts: Sequence[str],
+    ) -> np.ndarray:
+        """Draw instances on image.
+
+        Args:
+            image (np.ndarray): The origin image to draw. The format
+                should be RGB.
+            bboxes (np.ndarray, torch.Tensor): The bboxes to draw. The shape of
+                bboxes should be (N, 4), where N is the number of texts.
+            polygons (Sequence[np.ndarray]): The polygons to draw. The length
+                of polygons should be the same as the number of bboxes.
+            edge_labels (np.ndarray, torch.Tensor): The edge labels to draw.
+                The shape of edge_labels should be (N, N), where N is the
+                number of texts.
+            texts (Sequence[str]): The texts to draw. The length of texts
+                should be the same as the number of bboxes.
+            class_names (dict): The class names for bbox labels.
+            is_openset (bool): Whether the dataset is openset. Default: False.
+
+        Returns:
+            np.ndarray: The image with instances drawn.
+        """
+        img_shape = image.shape[:2]
+        empty_shape = (img_shape[0], img_shape[1], 3)
+        text_image = np.full(empty_shape, 255, dtype=np.uint8)
+        if texts:
+            text_image = self.get_labels_image(
+                text_image,
+                labels=texts,
+                bboxes=bboxes,
+                font_families=self.font_families,
+                font_properties=self.font_properties)
+        if polygons:
+            polygons = [polygon.reshape(-1, 2) for polygon in polygons]
+            image = self.get_polygons_image(
+                image, polygons, filling=True, colors=self.PALETTE)
+            text_image = self.get_polygons_image(
+                text_image, polygons, colors=self.PALETTE)
+        elif len(bboxes) > 0:
+            image = self.get_bboxes_image(
+                image, bboxes, filling=True, colors=self.PALETTE)
+            text_image = self.get_bboxes_image(
+                text_image, bboxes, colors=self.PALETTE)
+        return np.concatenate([image, text_image], axis=1)
+
+    def add_datasample(self,
+                       name: str,
+                       image: np.ndarray,
+                       data_sample: Optional['TextDetDataSample'] = None,
+                       draw_gt: bool = True,
+                       draw_pred: bool = True,
+                       show: bool = False,
+                       wait_time: int = 0,
+                       pred_score_thr: float = 0.5,
+                       out_file: Optional[str] = None,
+                       step: int = 0) -> None:
+        """Draw datasample and save to all backends.
+
+        - If GT and prediction are plotted at the same time, they are
+        displayed in a stitched image where the left image is the
+        ground truth and the right image is the prediction.
+        - If ``show`` is True, all storage backends are ignored, and
+        the images will be displayed in a local window.
+        - If ``out_file`` is specified, the drawn image will be
+        saved to ``out_file``. This is usually used when the display
+        is not available.
+
+        Args:
+            name (str): The image identifier.
+            image (np.ndarray): The image to draw.
+            data_sample (:obj:`TextSpottingDataSample`, optional):
+                TextDetDataSample which contains gt and prediction. Defaults
+                    to None.
+            draw_gt (bool): Whether to draw GT TextDetDataSample.
+                Defaults to True.
+            draw_pred (bool): Whether to draw Predicted TextDetDataSample.
+                Defaults to True.
+            show (bool): Whether to display the drawn image. Default to False.
+            wait_time (float): The interval of show (s). Defaults to 0.
+            out_file (str): Path to output file. Defaults to None.
+            pred_score_thr (float): The threshold to visualize the bboxes
+                and masks. Defaults to 0.3.
+            step (int): Global step value to record. Defaults to 0.
+        """
+        cat_images = []
+
+        if data_sample is not None:
+            if draw_gt and 'gt_instances' in data_sample:
+                gt_bboxes = data_sample.gt_instances.get('bboxes', None)
+                gt_texts = data_sample.gt_instances.texts
+                gt_polygons = data_sample.gt_instances.get('polygons', None)
+                gt_img_data = self._draw_instances(image, gt_bboxes,
+                                                   gt_polygons, gt_texts)
+                cat_images.append(gt_img_data)
+
+            if draw_pred and 'pred_instances' in data_sample:
+                pred_instances = data_sample.pred_instances
+                pred_instances = pred_instances[
+                    pred_instances.scores > pred_score_thr].cpu().numpy()
+                pred_bboxes = pred_instances.get('bboxes', None)
+                pred_texts = pred_instances.texts
+                pred_polygons = pred_instances.get('polygons', None)
+                if pred_bboxes is None:
+                    pred_bboxes = [poly2bbox(poly) for poly in pred_polygons]
+                    pred_bboxes = np.array(pred_bboxes)
+                pred_img_data = self._draw_instances(image, pred_bboxes,
+                                                     pred_polygons, pred_texts)
+                cat_images.append(pred_img_data)
+
+        cat_images = self._cat_image(cat_images, axis=0)
+        if cat_images is None:
+            cat_images = image
+
+        if show:
+            self.show(cat_images, win_name=name, wait_time=wait_time)
+        else:
+            self.add_image(name, cat_images, step)
+
+        if out_file is not None:
+            mmcv.imwrite(cat_images[..., ::-1], out_file)
+
+        self.set_image(cat_images)
+        return self.get_image()
diff --git a/mmocr-dev-1.x/model-index.yml b/mmocr-dev-1.x/model-index.yml
new file mode 100644
index 0000000000000000000000000000000000000000..563372c2623fe797281a4a3d0b80ad8c559ea2ef
--- /dev/null
+++ b/mmocr-dev-1.x/model-index.yml
@@ -0,0 +1,19 @@
+Import:
+  - configs/textdet/dbnet/metafile.yml
+  - configs/textdet/dbnetpp/metafile.yml
+  - configs/textdet/maskrcnn/metafile.yml
+  - configs/textdet/drrg/metafile.yml
+  - configs/textdet/fcenet/metafile.yml
+  - configs/textdet/panet/metafile.yml
+  - configs/textdet/psenet/metafile.yml
+  - configs/textdet/textsnake/metafile.yml
+  - configs/textrecog/abinet/metafile.yml
+  - configs/textrecog/aster/metafile.yml
+  - configs/textrecog/crnn/metafile.yml
+  - configs/textrecog/master/metafile.yml
+  - configs/textrecog/nrtr/metafile.yml
+  - configs/textrecog/svtr/metafile.yml
+  - configs/textrecog/robust_scanner/metafile.yml
+  - configs/textrecog/sar/metafile.yml
+  - configs/textrecog/satrn/metafile.yml
+  - configs/kie/sdmgr/metafile.yml
diff --git a/mmocr-dev-1.x/projects/ABCNet/README.md b/mmocr-dev-1.x/projects/ABCNet/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..3606ffdafd0d9b7d17411e400356c748e8ed408c
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/README.md
@@ -0,0 +1,148 @@
+# ABCNet: Real-time Scene Text Spotting with Adaptive Bezier-Curve Network
+
+<div>
+<a href="https://arxiv.org/abs/2002.10200">[arXiv paper]</a>
+<a href="https://openaccess.thecvf.com/content_CVPR_2020/papers/Liu_ABCNet_Real-Time_Scene_Text_Spotting_With_Adaptive_Bezier-Curve_Network_CVPR_2020_paper.pdf">[CVPR paper]</a>
+</div>
+
+## Description
+
+This is an implementation of [ABCNet](https://github.com/aim-uofa/AdelaiDet) based on [MMOCR](https://github.com/open-mmlab/mmocr/tree/dev-1.x), [MMCV](https://github.com/open-mmlab/mmcv), and [MMEngine](https://github.com/open-mmlab/mmengine).
+
+**ABCNet** is a conceptually novel, efficient, and fully convolutional framework for text spotting, which address the problem by proposing the Adaptive Bezier-Curve Network (ABCNet). Our contributions are three-fold: 1) For the first time, we adaptively fit arbitrarily-shaped text by a parameterized Bezier curve. 2) We design a novel BezierAlign layer for extracting accurate convolution features of a text instance with arbitrary shapes, significantly improving the precision compared with previous methods. 3) Compared with standard bounding box detection, our Bezier curve detection introduces negligible computation overhead, resulting in superiority of our method in both efficiency and accuracy. Experiments on arbitrarily-shaped benchmark datasets, namely Total-Text and CTW1500, demonstrate that ABCNet achieves state-of-the-art accuracy, meanwhile significantly improving the speed. In particular, on Total-Text, our realtime version is over 10 times faster than recent state-of-the-art methods with a competitive recognition accuracy.
+
+<center>
+<img src="https://user-images.githubusercontent.com/24622904/205641295-d57c225f-4b2e-4954-b604-ba8c8afc23cb.png">
+</center>
+
+## Usage
+
+<!-- For a typical model, this section should contain the commands for training and testing. You are also suggested to dump your environment specification to env.yml by `conda env export > env.yml`. -->
+
+### Prerequisites
+
+- Python 3.7
+- PyTorch 1.6 or higher
+- [MIM](https://github.com/open-mmlab/mim)
+- [MMOCR](https://github.com/open-mmlab/mmocr)
+
+All the commands below rely on the correct configuration of `PYTHONPATH`, which should point to the project's directory so that Python can locate the module files. In `ABCNet/` root directory, run the following line to add the current directory to `PYTHONPATH`:
+
+```shell
+# Linux
+export PYTHONPATH=`pwd`:$PYTHONPATH
+# Windows PowerShell
+$env:PYTHONPATH=Get-Location
+```
+
+if the data is not in `ABCNet/`, you can link the data into `ABCNet/`:
+
+```shell
+# Linux
+ln -s ${DataPath} $PYTHONPATH
+# Windows PowerShell
+New-Item -ItemType SymbolicLink -Path $env:PYTHONPATH -Name data  -Target ${DataPath}
+```
+
+### Training commands
+
+In the current directory, run the following command to train the model:
+
+```bash
+mim train mmocr config/abcnet/abcnet_resnet50_fpn_500e_icdar2015.py --work-dir work_dirs/
+```
+
+To train on multiple GPUs, e.g. 8 GPUs, run the following command:
+
+```bash
+mim train mmocr config/abcnet/abcnet_resnet50_fpn_500e_icdar2015.py --work-dir work_dirs/ --launcher pytorch --gpus 8
+```
+
+### Testing commands
+
+In the current directory, run the following command to test the model:
+
+```bash
+mim test mmocr config/abcnet/abcnet_resnet50_fpn_500e_icdar2015.py --work-dir work_dirs/ --checkpoint ${CHECKPOINT_PATH}
+```
+
+## Results
+
+Here we provide the baseline version of ABCNet with ResNet50 backbone.
+
+To find more variants, please visit the [official model zoo](https://github.com/aim-uofa/AdelaiDet/blob/master/configs/BAText/README.md).
+
+|         Name          |                                  Pretrained Model                                  | E2E-None-Hmean | det-Hmean |                                  Download                                  |
+| :-------------------: | :--------------------------------------------------------------------------------: | :------------: | :-------: | :------------------------------------------------------------------------: |
+| v1-icdar2015-finetune | [SynthText](https://download.openmmlab.com/mmocr/textspotting/abcnet/abcnet_resnet50_fpn_500e_icdar2015/abcnet_resnet50_fpn_pretrain-d060636c.pth) |     0.6127     |  0.8753   | [model](https://download.openmmlab.com/mmocr/textspotting/abcnet/abcnet_resnet50_fpn_500e_icdar2015/abcnet_resnet50_fpn_500e_icdar2015-326ac6f4.pth) \| [log](https://download.openmmlab.com/mmocr/textspotting/abcnet/abcnet_resnet50_fpn_500e_icdar2015/20221210_170401.log) |
+
+## Citation
+
+If you find ABCNet useful in your research or applications, please cite ABCNet with the following BibTeX entry.
+
+```BibTeX
+@inproceedings{liu2020abcnet,
+  title     =  {{ABCNet}: Real-time Scene Text Spotting with Adaptive Bezier-Curve Network},
+  author    =  {Liu, Yuliang and Chen, Hao and Shen, Chunhua and He, Tong and Jin, Lianwen and Wang, Liangwei},
+  booktitle =  {Proc. IEEE Conf. Computer Vision and Pattern Recognition (CVPR)},
+  year      =  {2020}
+}
+```
+
+## Checklist
+
+<!-- Here is a checklist illustrating a usual development workflow of a successful project, and also serves as an overview of this project's progress. The PIC (person in charge) or contributors of this project should check all the items that they believe have been finished, which will further be verified by codebase maintainers via a PR.
+
+OpenMMLab's maintainer will review the code to ensure the project's quality. Reaching the first milestone means that this project suffices the minimum requirement of being merged into 'projects/'. But this project is only eligible to become a part of the core package upon attaining the last milestone.
+
+Note that keeping this section up-to-date is crucial not only for this project's developers but the entire community, since there might be some other contributors joining this project and deciding their starting point from this list. It also helps maintainers accurately estimate time and effort on further code polishing, if needed.
+
+A project does not necessarily have to be finished in a single PR, but it's essential for the project to at least reach the first milestone in its very first PR. -->
+
+- [x] Milestone 1: PR-ready, and acceptable to be one of the `projects/`.
+
+  - [x] Finish the code
+
+    <!-- The code's design shall follow existing interfaces and convention. For example, each model component should be registered into `mmocr.registry.MODELS` and configurable via a config file. -->
+
+  - [x] Basic docstrings & proper citation
+
+    <!-- Each major object should contain a docstring, describing its functionality and arguments. If you have adapted the code from other open-source projects, don't forget to cite the source project in docstring and make sure your behavior is not against its license. Typically, we do not accept any code snippet under GPL license. [A Short Guide to Open Source Licenses](https://medium.com/nationwide-technology/a-short-guide-to-open-source-licenses-cf5b1c329edd) -->
+
+  - [x] Test-time correctness
+
+    <!-- If you are reproducing the result from a paper, make sure your model's inference-time performance matches that in the original paper. The weights usually could be obtained by simply renaming the keys in the official pre-trained weights. This test could be skipped though, if you are able to prove the training-time correctness and check the second milestone. -->
+
+  - [x] A full README
+
+    <!-- As this template does. -->
+
+- [x] Milestone 2: Indicates a successful model implementation.
+
+  - [x] Training-time correctness
+
+    <!-- If you are reproducing the result from a paper, checking this item means that you should have trained your model from scratch based on the original paper's specification and verified that the final result matches the report within a minor error range. -->
+
+- [ ] Milestone 3: Good to be a part of our core package!
+
+  - [ ] Type hints and docstrings
+
+    <!-- Ideally *all* the methods should have [type hints](https://www.pythontutorial.net/python-basics/python-type-hints/) and [docstrings](https://google.github.io/styleguide/pyguide.html#381-docstrings). [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/mmocr/utils/polygon_utils.py#L80-L96) -->
+
+  - [ ] Unit tests
+
+    <!-- Unit tests for each module are required. [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/tests/test_utils/test_polygon_utils.py#L97-L106) -->
+
+  - [ ] Code polishing
+
+    <!-- Refactor your code according to reviewer's comment. -->
+
+  - [ ] Metafile.yml
+
+    <!-- It will be parsed by MIM and Inferencer. [Example](https://github.com/open-mmlab/mmocr/blob/1.x/configs/textdet/dbnet/metafile.yml) -->
+
+- [ ] Move your modules into the core package following the codebase's file hierarchy structure.
+
+  <!-- In particular, you may have to refactor this README into a standard one. [Example](/configs/textdet/dbnet/README.md) -->
+
+- [ ] Refactor your modules into the core package following the codebase's file hierarchy structure.
diff --git a/mmocr-dev-1.x/projects/ABCNet/README_V2.md b/mmocr-dev-1.x/projects/ABCNet/README_V2.md
new file mode 100644
index 0000000000000000000000000000000000000000..0e4580446dd61307a785de49742157e56acfc981
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/README_V2.md
@@ -0,0 +1,137 @@
+# ABCNet v2: Adaptive Bezier-Curve Network for Real-time End-to-end Text Spotting
+
+<div>
+<a href="https://arxiv.org/abs/2105.03620">[arXiv paper]</a>
+<a href="https://ieeexplore.ieee.org/document/9525302">[TPAMI paper]</a>
+</div>
+
+## Description
+
+This is an implementation of [ABCNetV2](https://github.com/aim-uofa/AdelaiDet) based on [MMOCR](https://github.com/open-mmlab/mmocr/tree/dev-1.x), [MMCV](https://github.com/open-mmlab/mmcv), and [MMEngine](https://github.com/open-mmlab/mmengine).
+
+**ABCNetV2**  contributions are four-fold: 1) For the first time, we adaptively fit arbitrarily-shaped text by a parameterized Bezier curve, which, compared with segmentation-based methods, can not only provide structured output but also controllable representation. 2) We design a novel BezierAlign layer for extracting accurate convolution features of a text instance of arbitrary shapes, significantly improving the precision of recognition over previous methods. 3) Different from previous methods, which often suffer from complex post-processing and sensitive hyper-parameters, our ABCNet v2 maintains a simple pipeline with the only post-processing non-maximum suppression (NMS). 4) As the performance of text recognition closely depends on feature alignment, ABCNet v2 further adopts a simple yet effective coordinate convolution to encode the position of the convolutional filters, which leads to a considerable improvement with negligible computation overhead. Comprehensive experiments conducted on various bilingual (English and Chinese) benchmark datasets demonstrate that ABCNet v2 can achieve state-of-the-art performance while maintaining very high efficiency.
+
+<center>
+<img src="https://user-images.githubusercontent.com/24622904/213096846-2557e0ac-ca18-4c4f-88c1-569107f48f9b.png">
+</center>
+
+## Usage
+
+<!-- For a typical model, this section should contain the commands for training and testing. You are also suggested to dump your environment specification to env.yml by `conda env export > env.yml`. -->
+
+### Prerequisites
+
+- Python 3.7
+- PyTorch 1.6 or higher
+- [MIM](https://github.com/open-mmlab/mim)
+- [MMOCR](https://github.com/open-mmlab/mmocr)
+
+All the commands below rely on the correct configuration of `PYTHONPATH`, which should point to the project's directory so that Python can locate the module files. In `ABCNet/` root directory, run the following line to add the current directory to `PYTHONPATH`:
+
+```shell
+# Linux
+export PYTHONPATH=`pwd`:$PYTHONPATH
+# Windows PowerShell
+$env:PYTHONPATH=Get-Location
+```
+
+if the data is not in `ABCNet/`, you can link the data into `ABCNet/`:
+
+```shell
+# Linux
+ln -s ${DataPath} $PYTHONPATH
+# Windows PowerShell
+New-Item -ItemType SymbolicLink -Path $env:PYTHONPATH -Name data  -Target ${DataPath}
+```
+
+### Testing commands
+
+In the current directory, run the following command to test the model:
+
+```bash
+mim test mmocr config/abcnet_v2/abcnet-v2_resnet50_bifpn_500e_icdar2015.py --work-dir work_dirs/ --checkpoint ${CHECKPOINT_PATH}
+```
+
+## Results
+
+Here we provide the baseline version of ABCNet with ResNet50 backbone.
+
+To find more variants, please visit the [official model zoo](https://github.com/aim-uofa/AdelaiDet/blob/master/configs/BAText/README.md).
+
+|         Name          | Pretrained Model | E2E-None-Hmean | det-Hmean |                                                                   Download                                                                   |
+| :-------------------: | :--------------: | :------------: | :-------: | :------------------------------------------------------------------------------------------------------------------------------------------: |
+| v2-icdar2015-finetune |    SynthText     |     0.6628     |  0.8886   | [model](https://download.openmmlab.com/mmocr/textspotting/abcnet-v2/abcnet-v2_resnet50_bifpn/abcnet-v2_resnet50_bifpn_500e_icdar2015-5e4cc7ed.pth) |
+
+## Citation
+
+If you find ABCNetV2 useful in your research or applications, please cite ABCNetV2 with the following BibTeX entry.
+
+```BibTeX
+@ARTICLE{9525302,
+  author={Liu, Yuliang and Shen, Chunhua and Jin, Lianwen and He, Tong and Chen, Peng and Liu, Chongyu and Chen, Hao},
+  journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
+  title={ABCNet v2: Adaptive Bezier-Curve Network for Real-time End-to-end Text Spotting},
+  year={2021},
+  volume={},
+  number={},
+  pages={1-1},
+  doi={10.1109/TPAMI.2021.3107437}}
+```
+
+## Checklist
+
+<!-- Here is a checklist illustrating a usual development workflow of a successful project, and also serves as an overview of this project's progress. The PIC (person in charge) or contributors of this project should check all the items that they believe have been finished, which will further be verified by codebase maintainers via a PR.
+
+OpenMMLab's maintainer will review the code to ensure the project's quality. Reaching the first milestone means that this project suffices the minimum requirement of being merged into 'projects/'. But this project is only eligible to become a part of the core package upon attaining the last milestone.
+
+Note that keeping this section up-to-date is crucial not only for this project's developers but the entire community, since there might be some other contributors joining this project and deciding their starting point from this list. It also helps maintainers accurately estimate time and effort on further code polishing, if needed.
+
+A project does not necessarily have to be finished in a single PR, but it's essential for the project to at least reach the first milestone in its very first PR. -->
+
+- [x] Milestone 1: PR-ready, and acceptable to be one of the `projects/`.
+
+  - [x] Finish the code
+
+    <!-- The code's design shall follow existing interfaces and convention. For example, each model component should be registered into `mmocr.registry.MODELS` and configurable via a config file. -->
+
+  - [x] Basic docstrings & proper citation
+
+    <!-- Each major object should contain a docstring, describing its functionality and arguments. If you have adapted the code from other open-source projects, don't forget to cite the source project in docstring and make sure your behavior is not against its license. Typically, we do not accept any code snippet under GPL license. [A Short Guide to Open Source Licenses](https://medium.com/nationwide-technology/a-short-guide-to-open-source-licenses-cf5b1c329edd) -->
+
+  - [x] Test-time correctness
+
+    <!-- If you are reproducing the result from a paper, make sure your model's inference-time performance matches that in the original paper. The weights usually could be obtained by simply renaming the keys in the official pre-trained weights. This test could be skipped though, if you are able to prove the training-time correctness and check the second milestone. -->
+
+  - [x] A full README
+
+    <!-- As this template does. -->
+
+- [ ] Milestone 2: Indicates a successful model implementation.
+
+  - [ ] Training-time correctness
+
+    <!-- If you are reproducing the result from a paper, checking this item means that you should have trained your model from scratch based on the original paper's specification and verified that the final result matches the report within a minor error range. -->
+
+- [ ] Milestone 3: Good to be a part of our core package!
+
+  - [ ] Type hints and docstrings
+
+    <!-- Ideally *all* the methods should have [type hints](https://www.pythontutorial.net/python-basics/python-type-hints/) and [docstrings](https://google.github.io/styleguide/pyguide.html#381-docstrings). [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/mmocr/utils/polygon_utils.py#L80-L96) -->
+
+  - [ ] Unit tests
+
+    <!-- Unit tests for each module are required. [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/tests/test_utils/test_polygon_utils.py#L97-L106) -->
+
+  - [ ] Code polishing
+
+    <!-- Refactor your code according to reviewer's comment. -->
+
+  - [ ] Metafile.yml
+
+    <!-- It will be parsed by MIM and Inferencer. [Example](https://github.com/open-mmlab/mmocr/blob/1.x/configs/textdet/dbnet/metafile.yml) -->
+
+- [ ] Move your modules into the core package following the codebase's file hierarchy structure.
+
+  <!-- In particular, you may have to refactor this README into a standard one. [Example](/configs/textdet/dbnet/README.md) -->
+
+- [ ] Refactor your modules into the core package following the codebase's file hierarchy structure.
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/__init__.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..79dc69bc8e1ce59b7396a733009f8df5d964722f
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+# Copyright (c) OpenMMLab. All rights reserved.
+from .metric import *  # NOQA
+from .model import *  # NOQA
+from .utils import *  # NOQA
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/metric/__init__.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/metric/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..cbf8e944556c9c3c699958e54a9cb0e20fbe3134
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/metric/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .e2e_hmean_iou_metric import E2EHmeanIOUMetric
+
+__all__ = ['E2EHmeanIOUMetric']
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/metric/e2e_hmean_iou_metric.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/metric/e2e_hmean_iou_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..bdab4375e41e3ff8051ebc1b873842ebc04f1e44
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/metric/e2e_hmean_iou_metric.py
@@ -0,0 +1,370 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence
+
+import numpy as np
+import torch
+from mmengine.evaluator import BaseMetric
+from mmengine.logging import MMLogger
+from scipy.sparse import csr_matrix
+from scipy.sparse.csgraph import maximum_bipartite_matching
+from shapely.geometry import Polygon
+
+from mmocr.evaluation.functional import compute_hmean
+from mmocr.registry import METRICS
+from mmocr.utils import poly_intersection, poly_iou, polys2shapely
+
+
+@METRICS.register_module()
+class E2EHmeanIOUMetric(BaseMetric):
+    # TODO docstring
+    """HmeanIOU metric.
+
+    This method computes the hmean iou metric, which is done in the
+    following steps:
+
+    - Filter the prediction polygon:
+
+      - Scores is smaller than minimum prediction score threshold.
+      - The proportion of the area that intersects with gt ignored polygon is
+        greater than ignore_precision_thr.
+
+    - Computing an M x N IoU matrix, where each element indexing
+      E_mn represents the IoU between the m-th valid GT and n-th valid
+      prediction.
+    - Based on different prediction score threshold:
+      - Obtain the ignored predictions according to prediction score.
+        The filtered predictions will not be involved in the later metric
+        computations.
+      - Based on the IoU matrix, get the match metric according to
+      ``match_iou_thr``.
+      - Based on different `strategy`, accumulate the match number.
+    - calculate H-mean under different prediction score threshold.
+
+    Args:
+        match_iou_thr (float): IoU threshold for a match. Defaults to 0.5.
+        ignore_precision_thr (float): Precision threshold when prediction and\
+            gt ignored polygons are matched. Defaults to 0.5.
+        pred_score_thrs (dict): Best prediction score threshold searching
+            space. Defaults to dict(start=0.3, stop=0.9, step=0.1).
+        strategy (str): Polygon matching strategy. Options are 'max_matching'
+            and 'vanilla'. 'max_matching' refers to the optimum strategy that
+            maximizes the number of matches. Vanilla strategy matches gt and
+            pred polygons if both of them are never matched before. It was used
+            in MMOCR 0.x and and academia. Defaults to 'vanilla'.
+        collect_device (str): Device name used for collecting results from
+            different ranks during distributed training. Must be 'cpu' or
+            'gpu'. Defaults to 'cpu'.
+        prefix (str, optional): The prefix that will be added in the metric
+            names to disambiguate homonymous metrics of different evaluators.
+            If prefix is not provided in the argument, self.default_prefix
+            will be used instead. Defaults to None
+    """
+    default_prefix: Optional[str] = 'e2e_icdar'
+
+    def __init__(self,
+                 match_iou_thr: float = 0.5,
+                 ignore_precision_thr: float = 0.5,
+                 pred_score_thrs: Dict = dict(start=0.3, stop=0.9, step=0.1),
+                 lexicon_path: Optional[str] = None,
+                 word_spotting: bool = False,
+                 min_length_case_word: int = 3,
+                 special_characters: str = "'!?.:,*\"()·[]/",
+                 strategy: str = 'vanilla',
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = None) -> None:
+        super().__init__(collect_device=collect_device, prefix=prefix)
+        self.match_iou_thr = match_iou_thr
+        self.ignore_precision_thr = ignore_precision_thr
+        self.pred_score_thrs = np.arange(**pred_score_thrs)
+        self.word_spotting = word_spotting
+        self.min_length_case_word = min_length_case_word
+        self.special_characters = special_characters
+        assert strategy in ['max_matching', 'vanilla']
+        self.strategy = strategy
+
+    def process(self, data_batch: Sequence[Dict],
+                data_samples: Sequence[Dict]) -> None:
+        """Process one batch of data samples and predictions. The processed
+        results should be stored in ``self.results``, which will be used to
+        compute the metrics when all batches have been processed.
+
+        Args:
+            data_batch (Sequence[Dict]): A batch of data from dataloader.
+            data_samples (Sequence[Dict]): A batch of outputs from
+                the model.
+        """
+        for data_sample in data_samples:
+
+            pred_instances = data_sample.get('pred_instances')
+            pred_polygons = pred_instances.get('polygons')
+            pred_scores = pred_instances.get('scores')
+            if isinstance(pred_scores, torch.Tensor):
+                pred_scores = pred_scores.cpu().numpy()
+            pred_scores = np.array(pred_scores, dtype=np.float32)
+            pred_texts = pred_instances.get('texts')
+
+            gt_instances = data_sample.get('gt_instances')
+            gt_polys = gt_instances.get('polygons')
+            gt_ignore_flags = gt_instances.get('ignored')
+            gt_texts = gt_instances.get('texts')
+            if isinstance(gt_ignore_flags, torch.Tensor):
+                gt_ignore_flags = gt_ignore_flags.cpu().numpy()
+            gt_polys = polys2shapely(gt_polys)
+            pred_polys = polys2shapely(pred_polygons)
+            if self.word_spotting:
+                gt_ignore_flags, gt_texts = self._word_spotting_filter(
+                    gt_ignore_flags, gt_texts)
+            pred_ignore_flags = self._filter_preds(pred_polys, gt_polys,
+                                                   pred_scores,
+                                                   gt_ignore_flags)
+            pred_indexes = self._true_indexes(~pred_ignore_flags)
+            gt_indexes = self._true_indexes(~gt_ignore_flags)
+            pred_texts = [pred_texts[i] for i in pred_indexes]
+            gt_texts = [gt_texts[i] for i in gt_indexes]
+
+            gt_num = np.sum(~gt_ignore_flags)
+            pred_num = np.sum(~pred_ignore_flags)
+            iou_metric = np.zeros([gt_num, pred_num])
+
+            # Compute IoU scores amongst kept pred and gt polygons
+            for pred_mat_id, pred_poly_id in enumerate(pred_indexes):
+                for gt_mat_id, gt_poly_id in enumerate(gt_indexes):
+                    iou_metric[gt_mat_id, pred_mat_id] = poly_iou(
+                        gt_polys[gt_poly_id], pred_polys[pred_poly_id])
+
+            result = dict(
+                gt_texts=gt_texts,
+                pred_texts=pred_texts,
+                iou_metric=iou_metric,
+                pred_scores=pred_scores[~pred_ignore_flags])
+            self.results.append(result)
+
+    def compute_metrics(self, results: List[Dict]) -> Dict:
+        """Compute the metrics from processed results.
+
+        Args:
+            results (list[dict]): The processed results of each batch.
+
+        Returns:
+            dict: The computed metrics. The keys are the names of the metrics,
+            and the values are corresponding results.
+        """
+        logger: MMLogger = MMLogger.get_current_instance()
+
+        best_eval_results = dict(hmean=-1)
+        logger.info('Evaluating hmean-iou...')
+
+        dataset_pred_num = np.zeros_like(self.pred_score_thrs)
+        dataset_hit_num = np.zeros_like(self.pred_score_thrs)
+        dataset_gt_num = 0
+        for result in results:
+            iou_metric = result['iou_metric']  # (gt_num, pred_num)
+            pred_scores = result['pred_scores']  # (pred_num)
+            gt_texts = result['gt_texts']
+            pred_texts = result['pred_texts']
+            dataset_gt_num += iou_metric.shape[0]
+
+            # Filter out predictions by IoU threshold
+            for i, pred_score_thr in enumerate(self.pred_score_thrs):
+                pred_ignore_flags = pred_scores < pred_score_thr
+                # get the number of matched boxes
+                pred_texts = [
+                    pred_texts[j]
+                    for j in self._true_indexes(~pred_ignore_flags)
+                ]
+                matched_metric = iou_metric[:, ~pred_ignore_flags] \
+                    > self.match_iou_thr
+                if self.strategy == 'max_matching':
+                    csr_matched_metric = csr_matrix(matched_metric)
+                    matched_preds = maximum_bipartite_matching(
+                        csr_matched_metric, perm_type='row')
+                    # -1 denotes unmatched pred polygons
+                    dataset_hit_num[i] += np.sum(matched_preds != -1)
+                else:
+                    # first come first matched
+                    matched_gt_indexes = set()
+                    matched_pred_indexes = set()
+                    matched_e2e_gt_indexes = set()
+                    for gt_idx, pred_idx in zip(*np.nonzero(matched_metric)):
+                        if gt_idx in matched_gt_indexes or \
+                          pred_idx in matched_pred_indexes:
+                            continue
+                        matched_gt_indexes.add(gt_idx)
+                        matched_pred_indexes.add(pred_idx)
+                        if self.word_spotting:
+                            if gt_texts[gt_idx] == pred_texts[pred_idx]:
+                                matched_e2e_gt_indexes.add(gt_idx)
+                        else:
+                            if self.text_match(gt_texts[gt_idx].upper(),
+                                               pred_texts[pred_idx].upper()):
+                                matched_e2e_gt_indexes.add(gt_idx)
+                    dataset_hit_num[i] += len(matched_e2e_gt_indexes)
+                dataset_pred_num[i] += np.sum(~pred_ignore_flags)
+
+        for i, pred_score_thr in enumerate(self.pred_score_thrs):
+            recall, precision, hmean = compute_hmean(
+                int(dataset_hit_num[i]), int(dataset_hit_num[i]),
+                int(dataset_gt_num), int(dataset_pred_num[i]))
+            eval_results = dict(
+                precision=precision, recall=recall, hmean=hmean)
+            logger.info(f'prediction score threshold: {pred_score_thr:.2f}, '
+                        f'recall: {eval_results["recall"]:.4f}, '
+                        f'precision: {eval_results["precision"]:.4f}, '
+                        f'hmean: {eval_results["hmean"]:.4f}\n')
+            if eval_results['hmean'] > best_eval_results['hmean']:
+                best_eval_results = eval_results
+        return best_eval_results
+
+    def _filter_preds(self, pred_polys: List[Polygon], gt_polys: List[Polygon],
+                      pred_scores: List[float],
+                      gt_ignore_flags: np.ndarray) -> np.ndarray:
+        """Filter out the predictions by score threshold and whether it
+        overlaps ignored gt polygons.
+
+        Args:
+            pred_polys (list[Polygon]): Pred polygons.
+            gt_polys (list[Polygon]): GT polygons.
+            pred_scores (list[float]): Pred scores of polygons.
+            gt_ignore_flags (np.ndarray): 1D boolean array indicating
+                the positions of ignored gt polygons.
+
+        Returns:
+            np.ndarray: 1D boolean array indicating the positions of ignored
+            pred polygons.
+        """
+
+        # Filter out predictions based on the minimum score threshold
+        pred_ignore_flags = pred_scores < self.pred_score_thrs.min()
+        pred_indexes = self._true_indexes(~pred_ignore_flags)
+        gt_indexes = self._true_indexes(gt_ignore_flags)
+        # Filter out pred polygons which overlaps any ignored gt polygons
+        for pred_id in pred_indexes:
+            for gt_id in gt_indexes:
+                # Match pred with ignored gt
+                precision = poly_intersection(
+                    gt_polys[gt_id], pred_polys[pred_id]) / (
+                        pred_polys[pred_id].area + 1e-5)
+                if precision > self.ignore_precision_thr:
+                    pred_ignore_flags[pred_id] = True
+                    break
+
+        return pred_ignore_flags
+
+    def _true_indexes(self, array: np.ndarray) -> np.ndarray:
+        """Get indexes of True elements from a 1D boolean array."""
+        return np.where(array)[0]
+
+    def _include_in_dictionary(self, text):
+        """Function used in Word Spotting that finds if the Ground Truth text
+        meets the rules to enter into the dictionary.
+
+        If not, the text will be cared as don't care
+        """
+        # special case 's at final
+        if text[len(text) - 2:] == "'s" or text[len(text) - 2:] == "'S":
+            text = text[0:len(text) - 2]
+
+        # hyphens at init or final of the word
+        text = text.strip('-')
+
+        for character in self.special_characters:
+            text = text.replace(character, ' ')
+
+        text = text.strip()
+
+        if len(text) != len(text.replace(' ', '')):
+            return False
+
+        if len(text) < self.min_length_case_word:
+            return False
+
+        notAllowed = '×÷·'
+
+        range1 = [ord(u'a'), ord(u'z')]
+        range2 = [ord(u'A'), ord(u'Z')]
+        range3 = [ord(u'À'), ord(u'ƿ')]
+        range4 = [ord(u'DŽ'), ord(u'ɿ')]
+        range5 = [ord(u'Ά'), ord(u'Ͽ')]
+        range6 = [ord(u'-'), ord(u'-')]
+
+        for char in text:
+            charCode = ord(char)
+            if (notAllowed.find(char) != -1):
+                return False
+            # TODO: optimize it with for loop
+            valid = (charCode >= range1[0] and charCode <= range1[1]) or (
+                charCode >= range2[0] and charCode <= range2[1]
+            ) or (charCode >= range3[0] and charCode <= range3[1]) or (
+                charCode >= range4[0] and charCode <= range4[1]) or (
+                    charCode >= range5[0]
+                    and charCode <= range5[1]) or (charCode >= range6[0]
+                                                   and charCode <= range6[1])
+            if not valid:
+                return False
+
+        return True
+
+    def _include_in_dictionary_text(self, text):
+        """Function applied to the Ground Truth texts used in Word Spotting.
+
+        It removes special characters or terminations
+        """
+        # special case 's at final
+        if text[len(text) - 2:] == "'s" or text[len(text) - 2:] == "'S":
+            text = text[0:len(text) - 2]
+
+        # hyphens at init or final of the word
+        text = text.strip('-')
+
+        for character in self.special_characters:
+            text = text.replace(character, ' ')
+
+        text = text.strip()
+
+        return text
+
+    def text_match(self,
+                   gt_text,
+                   pred_text,
+                   only_remove_first_end_character=True):
+
+        if only_remove_first_end_character:
+            # special characters in GT are allowed only at initial or final
+            # position
+            if (gt_text == pred_text):
+                return True
+
+            if self.special_characters.find(gt_text[0]) > -1:
+                if gt_text[1:] == pred_text:
+                    return True
+
+            if self.special_characters.find(gt_text[-1]) > -1:
+                if gt_text[0:len(gt_text) - 1] == pred_text:
+                    return True
+
+            if self.special_characters.find(
+                    gt_text[0]) > -1 and self.special_characters.find(
+                        gt_text[-1]) > -1:
+                if gt_text[1:len(gt_text) - 1] == pred_text:
+                    return True
+            return False
+        else:
+            # Special characters are removed from the beginning and the end of
+            # both Detection and GroundTruth
+            while len(gt_text) > 0 and self.special_characters.find(
+                    gt_text[0]) > -1:
+                gt_text = gt_text[1:]
+
+            while len(pred_text) > 0 and self.special_characters.find(
+                    pred_text[0]) > -1:
+                pred_text = pred_text[1:]
+
+            while len(gt_text) > 0 and self.special_characters.find(
+                    gt_text[-1]) > -1:
+                gt_text = gt_text[0:len(gt_text) - 1]
+
+            while len(pred_text) > 0 and self.special_characters.find(
+                    pred_text[-1]) > -1:
+                pred_text = pred_text[0:len(pred_text) - 1]
+
+            return gt_text == pred_text
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/__init__.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..f22d9b4f1f7999226030438b99569c14c6f2c4a8
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/__init__.py
@@ -0,0 +1,21 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .abcnet import ABCNet
+from .abcnet_det_head import ABCNetDetHead
+from .abcnet_det_module_loss import ABCNetDetModuleLoss
+from .abcnet_det_postprocessor import ABCNetDetPostprocessor
+from .abcnet_postprocessor import ABCNetPostprocessor
+from .abcnet_rec import ABCNetRec
+from .abcnet_rec_backbone import ABCNetRecBackbone
+from .abcnet_rec_decoder import ABCNetRecDecoder
+from .abcnet_rec_encoder import ABCNetRecEncoder
+from .bezier_roi_extractor import BezierRoIExtractor
+from .bifpn import BiFPN
+from .coordinate_head import CoordinateHead
+from .rec_roi_head import RecRoIHead
+
+__all__ = [
+    'ABCNetDetHead', 'ABCNetDetPostprocessor', 'ABCNetRecBackbone',
+    'ABCNetRecDecoder', 'ABCNetRecEncoder', 'ABCNet', 'ABCNetRec',
+    'BezierRoIExtractor', 'RecRoIHead', 'ABCNetPostprocessor',
+    'ABCNetDetModuleLoss', 'BiFPN', 'CoordinateHead'
+]
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet.py
new file mode 100644
index 0000000000000000000000000000000000000000..7a341226ac91cf4d9154bea8080a0ba6f808235f
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .two_stage_text_spotting import TwoStageTextSpotter
+
+
+@MODELS.register_module()
+class ABCNet(TwoStageTextSpotter):
+    """CTC-loss based recognizer."""
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_head.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..4eb45d905e56f937bfcfd2a6e74831468bbc2373
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_head.py
@@ -0,0 +1,197 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+from mmcv.cnn import ConvModule, Scale
+from mmdet.models.utils import multi_apply
+
+from mmocr.models.textdet.heads.base import BaseTextDetHead
+from mmocr.registry import MODELS
+
+INF = 1e8
+
+
+@MODELS.register_module()
+class ABCNetDetHead(BaseTextDetHead):
+
+    def __init__(self,
+                 in_channels,
+                 module_loss=dict(type='ABCNetLoss'),
+                 postprocessor=dict(type='ABCNetDetPostprocessor'),
+                 num_classes=1,
+                 strides=(4, 8, 16, 32, 64),
+                 feat_channels=256,
+                 stacked_convs=4,
+                 dcn_on_last_conv=False,
+                 conv_bias='auto',
+                 norm_on_bbox=False,
+                 centerness_on_reg=False,
+                 use_sigmoid_cls=True,
+                 with_bezier=False,
+                 use_scale=False,
+                 conv_cfg=None,
+                 norm_cfg=dict(type='GN', num_groups=32, requires_grad=True),
+                 init_cfg=dict(
+                     type='Normal',
+                     layer='Conv2d',
+                     std=0.01,
+                     override=dict(
+                         type='Normal',
+                         name='conv_cls',
+                         std=0.01,
+                         bias_prob=0.01))):
+        super().__init__(
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            init_cfg=init_cfg)
+        self.num_classes = num_classes
+        self.in_channels = in_channels
+        self.strides = strides
+        self.feat_channels = feat_channels
+        self.stacked_convs = stacked_convs
+        self.dcn_on_last_conv = dcn_on_last_conv
+        assert conv_bias == 'auto' or isinstance(conv_bias, bool)
+        self.conv_bias = conv_bias
+        self.norm_on_bbox = norm_on_bbox
+        self.centerness_on_reg = centerness_on_reg
+        self.conv_cfg = conv_cfg
+        self.norm_cfg = norm_cfg
+        self.with_bezier = with_bezier
+        self.use_scale = use_scale
+        self.use_sigmoid_cls = use_sigmoid_cls
+        if self.use_sigmoid_cls:
+            self.cls_out_channels = num_classes
+        else:
+            self.cls_out_channels = num_classes + 1
+
+        self._init_layers()
+
+    def _init_layers(self):
+        """Initialize layers of the head."""
+        self._init_cls_convs()
+        self._init_reg_convs()
+        self._init_predictor()
+        self.conv_centerness = nn.Conv2d(self.feat_channels, 1, 3, padding=1)
+        # if self.use_scale:
+        self.scales = nn.ModuleList([Scale(1.0) for _ in self.strides])
+
+    def _init_cls_convs(self):
+        """Initialize classification conv layers of the head."""
+        self.cls_convs = nn.ModuleList()
+        for i in range(self.stacked_convs):
+            chn = self.in_channels if i == 0 else self.feat_channels
+            if self.dcn_on_last_conv and i == self.stacked_convs - 1:
+                conv_cfg = dict(type='DCNv2')
+            else:
+                conv_cfg = self.conv_cfg
+            self.cls_convs.append(
+                ConvModule(
+                    chn,
+                    self.feat_channels,
+                    3,
+                    stride=1,
+                    padding=1,
+                    conv_cfg=conv_cfg,
+                    norm_cfg=self.norm_cfg,
+                    bias=self.conv_bias))
+
+    def _init_reg_convs(self):
+        """Initialize bbox regression conv layers of the head."""
+        self.reg_convs = nn.ModuleList()
+        for i in range(self.stacked_convs):
+            chn = self.in_channels if i == 0 else self.feat_channels
+            if self.dcn_on_last_conv and i == self.stacked_convs - 1:
+                conv_cfg = dict(type='DCNv2')
+            else:
+                conv_cfg = self.conv_cfg
+            self.reg_convs.append(
+                ConvModule(
+                    chn,
+                    self.feat_channels,
+                    3,
+                    stride=1,
+                    padding=1,
+                    conv_cfg=conv_cfg,
+                    norm_cfg=self.norm_cfg,
+                    bias=self.conv_bias))
+
+    def _init_predictor(self):
+        """Initialize predictor layers of the head."""
+        self.conv_cls = nn.Conv2d(
+            self.feat_channels, self.cls_out_channels, 3, padding=1)
+        self.conv_reg = nn.Conv2d(self.feat_channels, 4, 3, padding=1)
+        if self.with_bezier:
+            self.conv_bezier = nn.Conv2d(
+                self.feat_channels, 16, kernel_size=3, stride=1, padding=1)
+
+    def forward(self, feats, data_samples=None):
+        """Forward features from the upstream network.
+
+        Args:
+            feats (tuple[Tensor]): Features from the upstream network, each is
+                a 4D-tensor.
+
+        Returns:
+            tuple:
+                cls_scores (list[Tensor]): Box scores for each scale level, \
+                    each is a 4D-tensor, the channel number is \
+                    num_points * num_classes.
+                bbox_preds (list[Tensor]): Box energies / deltas for each \
+                    scale level, each is a 4D-tensor, the channel number is \
+                    num_points * 4.
+                centernesses (list[Tensor]): centerness for each scale level, \
+                    each is a 4D-tensor, the channel number is num_points * 1.
+        """
+
+        return multi_apply(self.forward_single, feats[1:], self.scales,
+                           self.strides)
+
+    def forward_single(self, x, scale, stride):
+        """Forward features of a single scale level.
+
+        Args:
+            x (Tensor): FPN feature maps of the specified stride.
+            scale (:obj: `mmcv.cnn.Scale`): Learnable scale module to resize
+                the bbox prediction.
+            stride (int): The corresponding stride for feature maps, only
+                used to normalize the bbox prediction when self.norm_on_bbox
+                is True.
+
+        Returns:
+            tuple: scores for each class, bbox predictions and centerness \
+                predictions of input feature maps. If ``with_bezier`` is True,
+                Bezier prediction will also be returned.
+        """
+        cls_feat = x
+        reg_feat = x
+
+        for cls_layer in self.cls_convs:
+            cls_feat = cls_layer(cls_feat)
+        cls_score = self.conv_cls(cls_feat)
+
+        for reg_layer in self.reg_convs:
+            reg_feat = reg_layer(reg_feat)
+        bbox_pred = self.conv_reg(reg_feat)
+        if self.with_bezier:
+            bezier_pred = self.conv_bezier(reg_feat)
+
+        if self.centerness_on_reg:
+            centerness = self.conv_centerness(reg_feat)
+        else:
+            centerness = self.conv_centerness(cls_feat)
+        # scale the bbox_pred of different level
+        # float to avoid overflow when enabling FP16
+        if self.use_scale:
+            bbox_pred = scale(bbox_pred).float()
+        else:
+            bbox_pred = bbox_pred.float()
+        if self.norm_on_bbox:
+            # bbox_pred needed for gradient computation has been modified
+            # by F.relu(bbox_pred) when run with PyTorch 1.10. So replace
+            # F.relu(bbox_pred) with bbox_pred.clamp(min=0)
+            bbox_pred = bbox_pred.clamp(min=0)
+        else:
+            bbox_pred = bbox_pred.exp()
+
+        if self.with_bezier:
+            return cls_score, bbox_pred, centerness, bezier_pred
+        else:
+            return cls_score, bbox_pred, centerness
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_module_loss.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..a8becc48dd381ec37c5a178508c6af5fec47337b
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_module_loss.py
@@ -0,0 +1,359 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Tuple
+
+import torch
+from mmdet.models.task_modules.prior_generators import MlvlPointGenerator
+from mmdet.models.utils import multi_apply
+from mmdet.utils import reduce_mean
+from torch import Tensor
+
+from mmocr.models.textdet.module_losses.base import BaseTextDetModuleLoss
+from mmocr.registry import MODELS, TASK_UTILS
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import ConfigType, DetSampleList, RangeType
+from ..utils import poly2bezier
+
+INF = 1e8
+
+
+@MODELS.register_module()
+class ABCNetDetModuleLoss(BaseTextDetModuleLoss):
+    # TODO add docs
+
+    def __init__(
+        self,
+        num_classes: int = 1,
+        bbox_coder: ConfigType = dict(type='mmdet.DistancePointBBoxCoder'),
+        regress_ranges: RangeType = ((-1, 64), (64, 128), (128, 256),
+                                     (256, 512), (512, INF)),
+        strides: List[int] = (8, 16, 32, 64, 128),
+        center_sampling: bool = True,
+        center_sample_radius: float = 1.5,
+        norm_on_bbox: bool = True,
+        loss_cls: ConfigType = dict(
+            type='mmdet.FocalLoss',
+            use_sigmoid=True,
+            gamma=2.0,
+            alpha=0.25,
+            loss_weight=1.0),
+        loss_bbox: ConfigType = dict(type='mmdet.GIoULoss', loss_weight=1.0),
+        loss_centerness: ConfigType = dict(
+            type='mmdet.CrossEntropyLoss', use_sigmoid=True, loss_weight=1.0),
+        loss_bezier: ConfigType = dict(
+            type='mmdet.SmoothL1Loss', reduction='mean', loss_weight=1.0)
+    ) -> None:
+        super().__init__()
+        self.num_classes = num_classes
+        self.strides = strides
+        self.prior_generator = MlvlPointGenerator(strides)
+        self.regress_ranges = regress_ranges
+        self.center_sampling = center_sampling
+        self.center_sample_radius = center_sample_radius
+        self.norm_on_bbox = norm_on_bbox
+        self.loss_centerness = MODELS.build(loss_centerness)
+        self.loss_cls = MODELS.build(loss_cls)
+        self.loss_bbox = MODELS.build(loss_bbox)
+        self.loss_bezier = MODELS.build(loss_bezier)
+        self.bbox_coder = TASK_UTILS.build(bbox_coder)
+        use_sigmoid_cls = loss_cls.get('use_sigmoid', False)
+        if use_sigmoid_cls:
+            self.cls_out_channels = num_classes
+        else:
+            self.cls_out_channels = num_classes + 1
+
+    def forward(self, inputs: Tuple[Tensor],
+                data_samples: DetSampleList) -> Dict:
+        """Compute ABCNet loss.
+
+        Args:
+            inputs (tuple(tensor)): Raw predictions from model, containing
+                ``cls_scores``, ``bbox_preds``, ``beizer_preds`` and
+                ``centernesses``.
+                Each is a tensor of shape :math:`(N, H, W)`.
+            data_samples (list[TextDetDataSample]): The data samples.
+
+        Returns:
+            dict: The dict for abcnet-det losses with loss_cls, loss_bbox,
+            loss_centerness and loss_bezier.
+        """
+        cls_scores, bbox_preds, centernesses, beizer_preds = inputs
+        assert len(cls_scores) == len(bbox_preds) == len(centernesses) == len(
+            beizer_preds)
+        featmap_sizes = [featmap.size()[-2:] for featmap in cls_scores]
+        all_level_points = self.prior_generator.grid_priors(
+            featmap_sizes,
+            dtype=bbox_preds[0].dtype,
+            device=bbox_preds[0].device)
+        labels, bbox_targets, bezier_targets = self.get_targets(
+            all_level_points, data_samples)
+
+        num_imgs = cls_scores[0].size(0)
+        # flatten cls_scores, bbox_preds and centerness
+        flatten_cls_scores = [
+            cls_score.permute(0, 2, 3, 1).reshape(-1, self.cls_out_channels)
+            for cls_score in cls_scores
+        ]
+        flatten_bbox_preds = [
+            bbox_pred.permute(0, 2, 3, 1).reshape(-1, 4)
+            for bbox_pred in bbox_preds
+        ]
+        flatten_centerness = [
+            centerness.permute(0, 2, 3, 1).reshape(-1)
+            for centerness in centernesses
+        ]
+        flatten_bezier_preds = [
+            bezier_pred.permute(0, 2, 3, 1).reshape(-1, 16)
+            for bezier_pred in beizer_preds
+        ]
+        flatten_cls_scores = torch.cat(flatten_cls_scores)
+        flatten_bbox_preds = torch.cat(flatten_bbox_preds)
+        flatten_centerness = torch.cat(flatten_centerness)
+        flatten_bezier_preds = torch.cat(flatten_bezier_preds)
+        flatten_labels = torch.cat(labels)
+        flatten_bbox_targets = torch.cat(bbox_targets)
+        flatten_bezier_targets = torch.cat(bezier_targets)
+        # repeat points to align with bbox_preds
+        flatten_points = torch.cat(
+            [points.repeat(num_imgs, 1) for points in all_level_points])
+
+        # FG cat_id: [0, num_classes -1], BG cat_id: num_classes
+        bg_class_ind = self.num_classes
+        pos_inds = ((flatten_labels >= 0)
+                    & (flatten_labels < bg_class_ind)).nonzero().reshape(-1)
+        num_pos = torch.tensor(
+            len(pos_inds), dtype=torch.float, device=bbox_preds[0].device)
+        num_pos = max(reduce_mean(num_pos), 1.0)
+        loss_cls = self.loss_cls(
+            flatten_cls_scores, flatten_labels, avg_factor=num_pos)
+
+        pos_bbox_preds = flatten_bbox_preds[pos_inds]
+        pos_centerness = flatten_centerness[pos_inds]
+        pos_bezier_preds = flatten_bezier_preds[pos_inds]
+        pos_bbox_targets = flatten_bbox_targets[pos_inds]
+        pos_centerness_targets = self.centerness_target(pos_bbox_targets)
+        pos_bezier_targets = flatten_bezier_targets[pos_inds]
+        # centerness weighted iou loss
+        centerness_denorm = max(
+            reduce_mean(pos_centerness_targets.sum().detach()), 1e-6)
+
+        if len(pos_inds) > 0:
+            pos_points = flatten_points[pos_inds]
+            pos_decoded_bbox_preds = self.bbox_coder.decode(
+                pos_points, pos_bbox_preds)
+            pos_decoded_target_preds = self.bbox_coder.decode(
+                pos_points, pos_bbox_targets)
+            loss_bbox = self.loss_bbox(
+                pos_decoded_bbox_preds,
+                pos_decoded_target_preds,
+                weight=pos_centerness_targets,
+                avg_factor=centerness_denorm)
+            loss_centerness = self.loss_centerness(
+                pos_centerness, pos_centerness_targets, avg_factor=num_pos)
+            loss_bezier = self.loss_bezier(
+                pos_bezier_preds,
+                pos_bezier_targets,
+                weight=pos_centerness_targets[:, None],
+                avg_factor=centerness_denorm)
+        else:
+            loss_bbox = pos_bbox_preds.sum()
+            loss_centerness = pos_centerness.sum()
+            loss_bezier = pos_bezier_preds.sum()
+
+        return dict(
+            loss_cls=loss_cls,
+            loss_bbox=loss_bbox,
+            loss_centerness=loss_centerness,
+            loss_bezier=loss_bezier)
+
+    def get_targets(self, points: List[Tensor], data_samples: DetSampleList
+                    ) -> Tuple[List[Tensor], List[Tensor]]:
+        """Compute regression, classification and centerness targets for points
+        in multiple images.
+
+        Args:
+            points (list[Tensor]): Points of each fpn level, each has shape
+                (num_points, 2).
+            data_samples: Batch of data samples. Each data sample contains
+                a gt_instance, which usually includes bboxes and labels
+                attributes.
+
+        Returns:
+            tuple: Targets of each level.
+
+            - concat_lvl_labels (list[Tensor]): Labels of each level.
+            - concat_lvl_bbox_targets (list[Tensor]): BBox targets of each \
+            level.
+        """
+        assert len(points) == len(self.regress_ranges)
+        num_levels = len(points)
+        # expand regress ranges to align with points
+        expanded_regress_ranges = [
+            points[i].new_tensor(self.regress_ranges[i])[None].expand_as(
+                points[i]) for i in range(num_levels)
+        ]
+        # concat all levels points and regress ranges
+        concat_regress_ranges = torch.cat(expanded_regress_ranges, dim=0)
+        concat_points = torch.cat(points, dim=0)
+
+        # the number of points per img, per lvl
+        num_points = [center.size(0) for center in points]
+
+        # get labels and bbox_targets of each image
+        labels_list, bbox_targets_list, bezier_targets_list = multi_apply(
+            self._get_targets_single,
+            data_samples,
+            points=concat_points,
+            regress_ranges=concat_regress_ranges,
+            num_points_per_lvl=num_points)
+
+        # split to per img, per level
+        labels_list = [labels.split(num_points, 0) for labels in labels_list]
+        bbox_targets_list = [
+            bbox_targets.split(num_points, 0)
+            for bbox_targets in bbox_targets_list
+        ]
+        bezier_targets_list = [
+            bezier_targets.split(num_points, 0)
+            for bezier_targets in bezier_targets_list
+        ]
+        # concat per level image
+        concat_lvl_labels = []
+        concat_lvl_bbox_targets = []
+        concat_lvl_bezier_targets = []
+        for i in range(num_levels):
+            concat_lvl_labels.append(
+                torch.cat([labels[i] for labels in labels_list]))
+            bbox_targets = torch.cat(
+                [bbox_targets[i] for bbox_targets in bbox_targets_list])
+            bezier_targets = torch.cat(
+                [bezier_targets[i] for bezier_targets in bezier_targets_list])
+            if self.norm_on_bbox:
+                bbox_targets = bbox_targets / self.strides[i]
+                bezier_targets = bezier_targets / self.strides[i]
+            concat_lvl_bbox_targets.append(bbox_targets)
+            concat_lvl_bezier_targets.append(bezier_targets)
+        return (concat_lvl_labels, concat_lvl_bbox_targets,
+                concat_lvl_bezier_targets)
+
+    def _get_targets_single(self, data_sample: TextDetDataSample,
+                            points: Tensor, regress_ranges: Tensor,
+                            num_points_per_lvl: List[int]
+                            ) -> Tuple[Tensor, Tensor, Tensor]:
+        """Compute regression and classification targets for a single image."""
+        num_points = points.size(0)
+        gt_instances = data_sample.gt_instances
+        gt_instances = gt_instances[~gt_instances.ignored]
+        num_gts = len(gt_instances)
+        gt_bboxes = gt_instances.bboxes
+        gt_labels = gt_instances.labels
+        data_sample.gt_instances = gt_instances
+        polygons = gt_instances.polygons
+        beziers = gt_bboxes.new([poly2bezier(poly) for poly in polygons])
+        gt_instances.beziers = beziers
+        if num_gts == 0:
+            return gt_labels.new_full((num_points,), self.num_classes), \
+                   gt_bboxes.new_zeros((num_points, 4)), \
+                   gt_bboxes.new_zeros((num_points, 16))
+
+        areas = (gt_bboxes[:, 2] - gt_bboxes[:, 0]) * (
+            gt_bboxes[:, 3] - gt_bboxes[:, 1])
+        # TODO: figure out why these two are different
+        # areas = areas[None].expand(num_points, num_gts)
+        areas = areas[None].repeat(num_points, 1)
+        regress_ranges = regress_ranges[:, None, :].expand(
+            num_points, num_gts, 2)
+        gt_bboxes = gt_bboxes[None].expand(num_points, num_gts, 4)
+        xs, ys = points[:, 0], points[:, 1]
+        xs = xs[:, None].expand(num_points, num_gts)
+        ys = ys[:, None].expand(num_points, num_gts)
+
+        left = xs - gt_bboxes[..., 0]
+        right = gt_bboxes[..., 2] - xs
+        top = ys - gt_bboxes[..., 1]
+        bottom = gt_bboxes[..., 3] - ys
+        bbox_targets = torch.stack((left, top, right, bottom), -1)
+
+        beziers = beziers.reshape(-1, 8,
+                                  2)[None].expand(num_points, num_gts, 8, 2)
+        beziers_left = beziers[..., 0] - xs[..., None]
+        beziers_right = beziers[..., 1] - ys[..., None]
+        bezier_targets = torch.stack((beziers_left, beziers_right), dim=-1)
+        bezier_targets = bezier_targets.view(num_points, num_gts, 16)
+        if self.center_sampling:
+            # condition1: inside a `center bbox`
+            radius = self.center_sample_radius
+            center_xs = (gt_bboxes[..., 0] + gt_bboxes[..., 2]) / 2
+            center_ys = (gt_bboxes[..., 1] + gt_bboxes[..., 3]) / 2
+            center_gts = torch.zeros_like(gt_bboxes)
+            stride = center_xs.new_zeros(center_xs.shape)
+
+            # project the points on current lvl back to the `original` sizes
+            lvl_begin = 0
+            for lvl_idx, num_points_lvl in enumerate(num_points_per_lvl):
+                lvl_end = lvl_begin + num_points_lvl
+                stride[lvl_begin:lvl_end] = self.strides[lvl_idx] * radius
+                lvl_begin = lvl_end
+
+            x_mins = center_xs - stride
+            y_mins = center_ys - stride
+            x_maxs = center_xs + stride
+            y_maxs = center_ys + stride
+            center_gts[..., 0] = torch.where(x_mins > gt_bboxes[..., 0],
+                                             x_mins, gt_bboxes[..., 0])
+            center_gts[..., 1] = torch.where(y_mins > gt_bboxes[..., 1],
+                                             y_mins, gt_bboxes[..., 1])
+            center_gts[..., 2] = torch.where(x_maxs > gt_bboxes[..., 2],
+                                             gt_bboxes[..., 2], x_maxs)
+            center_gts[..., 3] = torch.where(y_maxs > gt_bboxes[..., 3],
+                                             gt_bboxes[..., 3], y_maxs)
+
+            cb_dist_left = xs - center_gts[..., 0]
+            cb_dist_right = center_gts[..., 2] - xs
+            cb_dist_top = ys - center_gts[..., 1]
+            cb_dist_bottom = center_gts[..., 3] - ys
+            center_bbox = torch.stack(
+                (cb_dist_left, cb_dist_top, cb_dist_right, cb_dist_bottom), -1)
+            inside_gt_bbox_mask = center_bbox.min(-1)[0] > 0
+        else:
+            # condition1: inside a gt bbox
+            inside_gt_bbox_mask = bbox_targets.min(-1)[0] > 0
+
+        # condition2: limit the regression range for each location
+        max_regress_distance = bbox_targets.max(-1)[0]
+        inside_regress_range = (
+            (max_regress_distance >= regress_ranges[..., 0])
+            & (max_regress_distance <= regress_ranges[..., 1]))
+
+        # if there are still more than one objects for a location,
+        # we choose the one with minimal area
+        areas[inside_gt_bbox_mask == 0] = INF
+        areas[inside_regress_range == 0] = INF
+        min_area, min_area_inds = areas.min(dim=1)
+
+        labels = gt_labels[min_area_inds]
+        labels[min_area == INF] = self.num_classes  # set as BG
+        bbox_targets = bbox_targets[range(num_points), min_area_inds]
+        bezier_targets = bezier_targets[range(num_points), min_area_inds]
+
+        return labels, bbox_targets, bezier_targets
+
+    def centerness_target(self, pos_bbox_targets: Tensor) -> Tensor:
+        """Compute centerness targets.
+
+        Args:
+            pos_bbox_targets (Tensor): BBox targets of positive bboxes in shape
+                (num_pos, 4)
+
+        Returns:
+            Tensor: Centerness target.
+        """
+        # only calculate pos centerness targets, otherwise there may be nan
+        left_right = pos_bbox_targets[:, [0, 2]]
+        top_bottom = pos_bbox_targets[:, [1, 3]]
+        if len(left_right) == 0:
+            centerness_targets = left_right[..., 0]
+        else:
+            centerness_targets = (
+                left_right.min(dim=-1)[0] / left_right.max(dim=-1)[0]) * (
+                    top_bottom.min(dim=-1)[0] / top_bottom.max(dim=-1)[0])
+        return torch.sqrt(centerness_targets)
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_postprocessor.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..db9a4d141c32ab840d8fe25640ad9c3fed00db5b
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_det_postprocessor.py
@@ -0,0 +1,228 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from functools import partial
+from typing import List
+
+import numpy as np
+import torch
+from mmcv.ops import batched_nms
+from mmdet.models.task_modules.prior_generators import MlvlPointGenerator
+from mmdet.models.utils import (filter_scores_and_topk, multi_apply,
+                                select_single_mlvl)
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.postprocessors.base import BaseTextDetPostProcessor
+from mmocr.registry import MODELS, TASK_UTILS
+
+
+@MODELS.register_module()
+class ABCNetDetPostprocessor(BaseTextDetPostProcessor):
+    """Post-processing methods for ABCNet.
+
+    Args:
+        num_classes (int): Number of classes.
+        use_sigmoid_cls (bool): Whether to use sigmoid for classification.
+        strides (tuple): Strides of each feature map.
+        norm_by_strides (bool): Whether to normalize the regression targets by
+            the strides.
+        bbox_coder (dict): Config dict for bbox coder.
+        text_repr_type (str): Text representation type, 'poly' or 'quad'.
+        with_bezier (bool): Whether to use bezier curve for text detection.
+        train_cfg (dict): Config dict for training.
+        test_cfg (dict): Config dict for testing.
+    """
+
+    def __init__(
+        self,
+        num_classes=1,
+        use_sigmoid_cls=True,
+        strides=(4, 8, 16, 32, 64),
+        norm_by_strides=True,
+        bbox_coder=dict(type='mmdet.DistancePointBBoxCoder'),
+        text_repr_type='poly',
+        rescale_fields=None,
+        with_bezier=False,
+        train_cfg=None,
+        test_cfg=None,
+    ):
+        super().__init__(
+            text_repr_type=text_repr_type,
+            rescale_fields=rescale_fields,
+            train_cfg=train_cfg,
+            test_cfg=test_cfg,
+        )
+        self.strides = strides
+        self.norm_by_strides = norm_by_strides
+        self.prior_generator = MlvlPointGenerator(strides)
+        self.bbox_coder = TASK_UTILS.build(bbox_coder)
+        self.use_sigmoid_cls = use_sigmoid_cls
+        self.with_bezier = with_bezier
+        if self.use_sigmoid_cls:
+            self.cls_out_channels = num_classes
+        else:
+            self.cls_out_channels = num_classes + 1
+
+    def split_results(self, pred_results: List[torch.Tensor]):
+        """Split the prediction results into multi-level features. The
+        prediction results are concatenated in the first dimension.
+        Args:
+            pred_results (list[list[torch.Tensor]): Prediction results of all
+                head with multi-level features.
+                The first dimension of pred_results is the number of outputs of
+                head. The second dimension is the number of level. The third
+                dimension is the feature with (N, C, H, W).
+
+        Returns:
+            list[list[torch.Tensor]]:
+            [Batch_size, Number of heads]
+        """
+
+        results = []
+        num_levels = len(pred_results[0])
+        bs = pred_results[0][0].size(0)
+        featmap_sizes = [
+            pred_results[0][i].shape[-2:] for i in range(num_levels)
+        ]
+        mlvl_priors = self.prior_generator.grid_priors(
+            featmap_sizes,
+            dtype=pred_results[0][0].dtype,
+            device=pred_results[0][0].device)
+        for img_id in range(bs):
+            single_results = [mlvl_priors]
+            for pred_result in pred_results:
+                single_results.append(select_single_mlvl(pred_result, img_id))
+            results.append(single_results)
+        return results
+
+    def get_text_instances(
+            self,
+            pred_results,
+            data_sample,
+            nms_pre=-1,
+            score_thr=0,
+            max_per_img=100,
+            nms=dict(type='nms', iou_threshold=0.5),
+    ):
+        """Get text instance predictions of one image."""
+        pred_instances = InstanceData()
+
+        (mlvl_bboxes, mlvl_scores, mlvl_labels, mlvl_score_factors,
+         mlvl_beziers) = multi_apply(
+             self._get_preds_single_level,
+             *pred_results,
+             self.strides,
+             img_shape=data_sample.get('img_shape'),
+             nms_pre=nms_pre,
+             score_thr=score_thr)
+
+        mlvl_bboxes = torch.cat(mlvl_bboxes)
+        mlvl_scores = torch.cat(mlvl_scores)
+        mlvl_labels = torch.cat(mlvl_labels)
+        if self.with_bezier:
+            mlvl_beziers = torch.cat(mlvl_beziers)
+
+        if mlvl_score_factors is not None:
+            mlvl_score_factors = torch.cat(mlvl_score_factors)
+            mlvl_scores = mlvl_scores * mlvl_score_factors
+            mlvl_scores = torch.sqrt(mlvl_scores)
+
+        if mlvl_bboxes.numel() == 0:
+            pred_instances.bboxes = mlvl_bboxes.detach().cpu().numpy()
+            pred_instances.scores = mlvl_scores.detach().cpu().numpy()
+            pred_instances.labels = mlvl_labels.detach().cpu().numpy()
+            if self.with_bezier:
+                pred_instances.beziers = mlvl_beziers.detach().reshape(-1, 16)
+            pred_instances.polygons = []
+            data_sample.pred_instances = pred_instances
+            return data_sample
+        det_bboxes, keep_idxs = batched_nms(mlvl_bboxes, mlvl_scores,
+                                            mlvl_labels, nms)
+        det_bboxes, scores = np.split(det_bboxes, [-1], axis=1)
+        pred_instances.bboxes = det_bboxes[:max_per_img].detach().cpu().numpy()
+        pred_instances.scores = scores[:max_per_img].detach().cpu().numpy(
+        ).squeeze(-1)
+        pred_instances.labels = mlvl_labels[keep_idxs][:max_per_img].detach(
+        ).cpu().numpy()
+        if self.with_bezier:
+            pred_instances.beziers = mlvl_beziers[
+                keep_idxs][:max_per_img].detach().reshape(-1, 16)
+        data_sample.pred_instances = pred_instances
+        return data_sample
+
+    def _get_preds_single_level(self,
+                                priors,
+                                cls_scores,
+                                bbox_preds,
+                                centernesses,
+                                bezier_preds=None,
+                                stride=1,
+                                score_thr=0,
+                                nms_pre=-1,
+                                img_shape=None):
+        assert cls_scores.size()[-2:] == bbox_preds.size()[-2:]
+        if self.norm_by_strides:
+            bbox_preds = bbox_preds * stride
+        bbox_preds = bbox_preds.permute(1, 2, 0).reshape(-1, 4)
+        if self.with_bezier:
+            if self.norm_by_strides:
+                bezier_preds = bezier_preds * stride
+            bezier_preds = bezier_preds.permute(1, 2, 0).reshape(-1, 8, 2)
+        centernesses = centernesses.permute(1, 2, 0).reshape(-1).sigmoid()
+        cls_scores = cls_scores.permute(1, 2,
+                                        0).reshape(-1, self.cls_out_channels)
+        if self.use_sigmoid_cls:
+            scores = cls_scores.sigmoid()
+        else:
+            # remind that we set FG labels to [0, num_class-1]
+            # since mmdet v2.0
+            # BG cat_id: num_class
+            scores = cls_scores.softmax(-1)[:, :-1]
+
+        # After https://github.com/open-mmlab/mmdetection/pull/6268/,
+        # this operation keeps fewer bboxes under the same `nms_pre`.
+        # There is no difference in performance for most models. If you
+        # find a slight drop in performance, you can set a larger
+        # `nms_pre` than before.
+        results = filter_scores_and_topk(
+            scores, score_thr, nms_pre,
+            dict(bbox_preds=bbox_preds, priors=priors))
+        scores, labels, keep_idxs, filtered_results = results
+
+        bbox_preds = filtered_results['bbox_preds']
+        priors = filtered_results['priors']
+        centernesses = centernesses[keep_idxs]
+        bboxes = self.bbox_coder.decode(
+            priors, bbox_preds, max_shape=img_shape)
+        if self.with_bezier:
+            bezier_preds = bezier_preds[keep_idxs]
+            bezier_preds = priors[:, None, :] + bezier_preds
+            bezier_preds[:, :, 0].clamp_(min=0, max=img_shape[1])
+            bezier_preds[:, :, 1].clamp_(min=0, max=img_shape[0])
+            return bboxes, scores, labels, centernesses, bezier_preds
+        else:
+            return bboxes, scores, labels, centernesses
+
+    def __call__(self, pred_results, data_samples, training: bool = False):
+        """Postprocess pred_results according to metainfos in data_samples.
+
+        Args:
+            pred_results (Union[Tensor, List[Tensor]]): The prediction results
+                stored in a tensor or a list of tensor. Usually each item to
+                be post-processed is expected to be a batched tensor.
+            data_samples (list[TextDetDataSample]): Batch of data_samples,
+                each corresponding to a prediction result.
+            training (bool): Whether the model is in training mode. Defaults to
+                False.
+
+        Returns:
+            list[TextDetDataSample]: Batch of post-processed datasamples.
+        """
+        if training:
+            return data_samples
+        cfg = self.train_cfg if training else self.test_cfg
+        if cfg is None:
+            cfg = {}
+        pred_results = self.split_results(pred_results)
+        process_single = partial(self._process_single, **cfg)
+        results = list(map(process_single, pred_results, data_samples))
+
+        return results
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_postprocessor.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..1f75635652a80b688884244a23a07e1b59ba53f4
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_postprocessor.py
@@ -0,0 +1,100 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.models.textdet.postprocessors.base import BaseTextDetPostProcessor
+from mmocr.registry import MODELS
+from ..utils import bezier2poly
+
+
+@MODELS.register_module()
+class ABCNetPostprocessor(BaseTextDetPostProcessor):
+    """Post-processing methods for ABCNet.
+
+    Args:
+        num_classes (int): Number of classes.
+        use_sigmoid_cls (bool): Whether to use sigmoid for classification.
+        strides (tuple): Strides of each feature map.
+        norm_by_strides (bool): Whether to normalize the regression targets by
+            the strides.
+        bbox_coder (dict): Config dict for bbox coder.
+        text_repr_type (str): Text representation type, 'poly' or 'quad'.
+        with_bezier (bool): Whether to use bezier curve for text detection.
+        train_cfg (dict): Config dict for training.
+        test_cfg (dict): Config dict for testing.
+    """
+
+    def __init__(
+        self,
+        text_repr_type='poly',
+        rescale_fields=['beziers', 'polygons'],
+    ):
+        super().__init__(
+            text_repr_type=text_repr_type, rescale_fields=rescale_fields)
+
+    def merge_predict(self, spotting_data_samples, recog_data_samples):
+        texts = [ds.pred_text.item for ds in recog_data_samples]
+        start = 0
+        for spotting_data_sample in spotting_data_samples:
+            end = start + len(spotting_data_sample.pred_instances)
+            spotting_data_sample.pred_instances.texts = texts[start:end]
+            start = end
+        return spotting_data_samples
+
+    # TODO: fix docstr
+    def __call__(self,
+                 spotting_data_samples,
+                 recog_data_samples,
+                 training: bool = False):
+        """Postprocess pred_results according to metainfos in data_samples.
+
+        Args:
+            pred_results (Union[Tensor, List[Tensor]]): The prediction results
+                stored in a tensor or a list of tensor. Usually each item to
+                be post-processed is expected to be a batched tensor.
+            data_samples (list[TextDetDataSample]): Batch of data_samples,
+                each corresponding to a prediction result.
+            training (bool): Whether the model is in training mode. Defaults to
+                False.
+
+        Returns:
+            list[TextDetDataSample]: Batch of post-processed datasamples.
+        """
+        spotting_data_samples = list(
+            map(self._process_single, spotting_data_samples))
+        return self.merge_predict(spotting_data_samples, recog_data_samples)
+
+    def _process_single(self, data_sample):
+        """Process prediction results from one image.
+
+        Args:
+            pred_result (Union[Tensor, List[Tensor]]): Prediction results of an
+                image.
+            data_sample (TextDetDataSample): Datasample of an image.
+        """
+        data_sample = self.get_text_instances(data_sample)
+        if self.rescale_fields and len(self.rescale_fields) > 0:
+            assert isinstance(self.rescale_fields, list)
+            assert set(self.rescale_fields).issubset(
+                set(data_sample.pred_instances.keys()))
+            data_sample = self.rescale(data_sample, data_sample.scale_factor)
+        return data_sample
+
+    def get_text_instances(self, data_sample, **kwargs):
+        """Get text instance predictions of one image.
+
+        Args:
+            pred_result (tuple(Tensor)): Prediction results of an image.
+            data_sample (TextDetDataSample): Datasample of an image.
+            **kwargs: Other parameters. Configurable via ``__init__.train_cfg``
+                and ``__init__.test_cfg``.
+
+        Returns:
+            TextDetDataSample: A new DataSample with predictions filled in.
+            The polygon/bbox results are usually saved in
+            ``TextDetDataSample.pred_instances.polygons`` or
+            ``TextDetDataSample.pred_instances.bboxes``. The confidence scores
+            are saved in ``TextDetDataSample.pred_instances.scores``.
+        """
+        data_sample = data_sample.cpu().numpy()
+        pred_instances = data_sample.pred_instances
+        data_sample.pred_instances.polygons = list(
+            map(bezier2poly, pred_instances.beziers))
+        return data_sample
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec.py
new file mode 100644
index 0000000000000000000000000000000000000000..599a36d41f855a21ecf623389198162e03ee7d50
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.models.textrecog import EncoderDecoderRecognizer
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class ABCNetRec(EncoderDecoderRecognizer):
+    """CTC-loss based recognizer."""
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_backbone.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_backbone.py
new file mode 100644
index 0000000000000000000000000000000000000000..7d77cf2e6f07cd609df16a7feaf83da609b3da3a
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_backbone.py
@@ -0,0 +1,52 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import torch.nn as nn
+from mmcv.cnn import ConvModule
+from mmengine.model import BaseModule, Sequential
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class ABCNetRecBackbone(BaseModule):
+
+    def __init__(self, init_cfg=None):
+        super().__init__(init_cfg)
+
+        self.convs = Sequential(
+            ConvModule(
+                in_channels=256,
+                out_channels=256,
+                kernel_size=3,
+                padding=1,
+                bias='auto',
+                norm_cfg=dict(type='BN'),
+                act_cfg=dict(type='ReLU')),
+            ConvModule(
+                in_channels=256,
+                out_channels=256,
+                kernel_size=3,
+                padding=1,
+                bias='auto',
+                norm_cfg=dict(type='BN'),
+                act_cfg=dict(type='ReLU')),
+            ConvModule(
+                in_channels=256,
+                out_channels=256,
+                kernel_size=3,
+                padding=1,
+                stride=(2, 1),
+                bias='auto',
+                norm_cfg=dict(type='GN', num_groups=32),
+                act_cfg=dict(type='ReLU')),
+            ConvModule(
+                in_channels=256,
+                out_channels=256,
+                kernel_size=3,
+                padding=1,
+                stride=(2, 1),
+                bias='auto',
+                norm_cfg=dict(type='GN', num_groups=32),
+                act_cfg=dict(type='ReLU')), nn.AdaptiveAvgPool2d((1, None)))
+
+    def forward(self, x):
+        return self.convs(x)
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_decoder.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..e96f3a3b4fa6d33d79f8433320ee166da9ce0784
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_decoder.py
@@ -0,0 +1,161 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import random
+from typing import Dict, Optional, Sequence, Union
+
+import torch
+import torch.nn as nn
+from torch.nn import functional as F
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.decoders.base import BaseDecoder
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+
+
+@MODELS.register_module()
+class ABCNetRecDecoder(BaseDecoder):
+    """Decoder for ABCNet.
+
+    Args:
+        in_channels (int): Number of input channels.
+        dropout_prob (float): Probability of dropout. Default to 0.5.
+        teach_prob (float): Probability of teacher forcing. Defaults to 0.5.
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        module_loss (dict, optional): Config to build module_loss. Defaults
+            to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        max_seq_len (int, optional): Max sequence length. Defaults to 30.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 in_channels: int = 256,
+                 dropout_prob: float = 0.5,
+                 teach_prob: float = 0.5,
+                 dictionary: Union[Dictionary, Dict] = None,
+                 module_loss: Dict = None,
+                 postprocessor: Dict = None,
+                 max_seq_len: int = 30,
+                 init_cfg=dict(type='Xavier', layer='Conv2d'),
+                 **kwargs):
+        super().__init__(
+            init_cfg=init_cfg,
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=max_seq_len)
+        self.in_channels = in_channels
+        self.teach_prob = teach_prob
+        self.embedding = nn.Embedding(self.dictionary.num_classes, in_channels)
+        self.attn_combine = nn.Linear(in_channels * 2, in_channels)
+        self.dropout = nn.Dropout(dropout_prob)
+        self.gru = nn.GRU(in_channels, in_channels)
+        self.out = nn.Linear(in_channels, self.dictionary.num_classes)
+        self.vat = nn.Linear(in_channels, 1)
+        self.softmax = nn.Softmax(dim=-1)
+
+    def forward_train(
+        self,
+        feat: torch.Tensor,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): A Tensor of shape :math:`(N, C, 1, W)`.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+
+        Returns:
+            Tensor: The raw logit tensor. Shape :math:`(N, W, C)` where
+            :math:`C` is ``num_classes``.
+        """
+        bs = out_enc.size()[1]
+        trg_seq = []
+        for target in data_samples:
+            trg_seq.append(target.gt_text.padded_indexes.to(feat.device))
+        decoder_input = torch.zeros(bs).long().to(out_enc.device)
+        trg_seq = torch.stack(trg_seq, dim=0)
+        decoder_hidden = torch.zeros(1, bs,
+                                     self.in_channels).to(out_enc.device)
+        decoder_outputs = []
+        for index in range(trg_seq.shape[1]):
+            #  decoder_output (nbatch, ncls)
+            decoder_output, decoder_hidden = self._attention(
+                decoder_input, decoder_hidden, out_enc)
+            teach_forcing = True if random.random(
+            ) > self.teach_prob else False
+            if teach_forcing:
+                decoder_input = trg_seq[:, index]  # Teacher forcing
+            else:
+                _, topi = decoder_output.data.topk(1)
+                decoder_input = topi.squeeze()
+            decoder_outputs.append(decoder_output)
+
+        return torch.stack(decoder_outputs, dim=1)
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): A Tensor of shape :math:`(N, C, 1, W)`.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (list[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing ``gt_text`` information.
+                Defaults to None.
+
+        Returns:
+            Tensor: Character probabilities. of shape
+            :math:`(N, self.max_seq_len, C)` where :math:`C` is
+            ``num_classes``.
+        """
+        bs = out_enc.size()[1]
+        outputs = []
+        decoder_input = torch.zeros(bs).long().to(out_enc.device)
+        decoder_hidden = torch.zeros(1, bs,
+                                     self.in_channels).to(out_enc.device)
+        for _ in range(self.max_seq_len):
+            #  decoder_output (nbatch, ncls)
+            decoder_output, decoder_hidden = self._attention(
+                decoder_input, decoder_hidden, out_enc)
+            _, topi = decoder_output.data.topk(1)
+            decoder_input = topi.squeeze()
+            outputs.append(decoder_output)
+        outputs = torch.stack(outputs, dim=1)
+        return self.softmax(outputs)
+
+    def _attention(self, input, hidden, encoder_outputs):
+        embedded = self.embedding(input)
+        embedded = self.dropout(embedded)
+
+        # test
+        batch_size = encoder_outputs.shape[1]
+
+        alpha = hidden + encoder_outputs
+        alpha = alpha.view(-1, alpha.shape[-1])  # (T * n, hidden_size)
+        attn_weights = self.vat(torch.tanh(alpha))  # (T * n, 1)
+        attn_weights = attn_weights.view(-1, 1, batch_size).permute(
+            (2, 1, 0))  # (T, 1, n)  -> (n, 1, T)
+        attn_weights = F.softmax(attn_weights, dim=2)
+
+        attn_applied = torch.matmul(attn_weights,
+                                    encoder_outputs.permute((1, 0, 2)))
+
+        if embedded.dim() == 1:
+            embedded = embedded.unsqueeze(0)
+        output = torch.cat((embedded, attn_applied.squeeze(1)), 1)
+        output = self.attn_combine(output).unsqueeze(0)  # (1, n, hidden_size)
+
+        output = F.relu(output)
+        output, hidden = self.gru(output, hidden)  # (1, n, hidden_size)
+        output = self.out(output[0])
+        return output, hidden
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_encoder.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..5657ef096583efca964519dae36cc17c6ddf4034
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/abcnet_rec_encoder.py
@@ -0,0 +1,54 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, Optional, Sequence
+
+import torch
+
+from mmocr.models.textrecog.encoders.base import BaseEncoder
+from mmocr.models.textrecog.layers import BidirectionalLSTM
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+
+
+@MODELS.register_module()
+class ABCNetRecEncoder(BaseEncoder):
+    """Encoder for ABCNet.
+
+    Args:
+        in_channels (int): Number of input channels.
+        out_channels (int): Number of output channels.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to dict(type='Xavier', layer='Conv2d').
+    """
+
+    def __init__(self,
+                 in_channels: int = 256,
+                 hidden_channels: int = 256,
+                 out_channels: int = 256,
+                 init_cfg: Dict = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+
+        self.layer = BidirectionalLSTM(in_channels, hidden_channels,
+                                       out_channels)
+
+    def forward(
+        self,
+        feat: torch.Tensor,
+        data_samples: Optional[Sequence[TextRecogDataSample]] = None
+    ) -> torch.Tensor:
+        """
+        Args:
+            feat (Tensor): Image features with the shape of
+                :math:`(N, C_{in}, H, W)`.
+            data_samples (list[TextRecogDataSample], optional): Batch of
+                TextRecogDataSample, containing valid_ratio information.
+                Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, C_{out}, H, W)`.
+        """
+        assert feat.size(2) == 1, 'feature height must be 1'
+        feat = feat.squeeze(2)
+        feat = feat.permute(2, 0, 1)  # NxCxW -> WxNxC
+        feat = self.layer(feat)
+        # feat = feat.permute(1, 0, 2).contiguous()
+        return feat
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/base_roi_extractor.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/base_roi_extractor.py
new file mode 100644
index 0000000000000000000000000000000000000000..372a23c2e428e2ca4364d134b726f6618d51af0e
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/base_roi_extractor.py
@@ -0,0 +1,79 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import ABCMeta, abstractmethod
+from typing import List, Tuple
+
+import torch.nn as nn
+from mmcv import ops
+from mmengine.model import BaseModule
+from torch import Tensor
+
+from mmocr.utils import ConfigType, OptMultiConfig
+
+
+class BaseRoIExtractor(BaseModule, metaclass=ABCMeta):
+    """Base class for RoI extractor.
+
+    Args:
+        roi_layer (:obj:`ConfigDict` or dict): Specify RoI layer type and
+            arguments.
+        out_channels (int): Output channels of RoI layers.
+        featmap_strides (list[int]): Strides of input feature maps.
+        init_cfg (:obj:`ConfigDict` or dict or list[:obj:`ConfigDict` or \
+            dict], optional): Initialization config dict. Defaults to None.
+    """
+
+    def __init__(self,
+                 roi_layer: ConfigType,
+                 out_channels: int,
+                 featmap_strides: List[int],
+                 init_cfg: OptMultiConfig = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.roi_layers = self.build_roi_layers(roi_layer, featmap_strides)
+        self.out_channels = out_channels
+        self.featmap_strides = featmap_strides
+
+    @property
+    def num_inputs(self) -> int:
+        """int: Number of input feature maps."""
+        return len(self.featmap_strides)
+
+    def build_roi_layers(self, layer_cfg: ConfigType,
+                         featmap_strides: List[int]) -> nn.ModuleList:
+        """Build RoI operator to extract feature from each level feature map.
+
+        Args:
+            layer_cfg (:obj:`ConfigDict` or dict): Dictionary to construct and
+                config RoI layer operation. Options are modules under
+                ``mmcv/ops`` such as ``RoIAlign``.
+            featmap_strides (list[int]): The stride of input feature map w.r.t
+                to the original image size, which would be used to scale RoI
+                coordinate (original image coordinate system) to feature
+                coordinate system.
+
+        Returns:
+            :obj:`nn.ModuleList`: The RoI extractor modules for each level
+                feature map.
+        """
+
+        cfg = layer_cfg.copy()
+        layer_type = cfg.pop('type')
+        assert hasattr(ops, layer_type)
+        layer_cls = getattr(ops, layer_type)
+        roi_layers = nn.ModuleList(
+            [layer_cls(spatial_scale=1 / s, **cfg) for s in featmap_strides])
+        return roi_layers
+
+    @abstractmethod
+    def forward(self, feats: Tuple[Tensor], data_samples) -> Tensor:
+        """Extractor ROI feats.
+
+        Args:
+            feats (Tuple[Tensor]): Multi-scale features.
+            data_samples (List[TextSpottingDataSample]):
+
+              - proposals(InstanceData): The proposals of text detection.
+
+        Returns:
+            Tensor: RoI feature.
+        """
+        pass
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/base_roi_head.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/base_roi_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..15652841fe6248ab9a81cf4e052ad67d7c93da5a
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/base_roi_head.py
@@ -0,0 +1,58 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import ABCMeta, abstractmethod
+from typing import Tuple
+
+from mmengine.model import BaseModule
+from torch import Tensor
+
+from mmocr.utils import DetSampleList
+
+
+class BaseRoIHead(BaseModule, metaclass=ABCMeta):
+    """Base class for RoIHeads."""
+
+    @property
+    def with_rec_head(self):
+        """bool: whether the RoI head contains a `mask_head`"""
+        return hasattr(self, 'rec_head') and self.rec_head is not None
+
+    @property
+    def with_extractor(self):
+        """bool: whether the RoI head contains a `mask_head`"""
+        return hasattr(self,
+                       'roi_extractor') and self.roi_extractor is not None
+
+    # @abstractmethod
+    # def init_assigner_sampler(self, *args, **kwargs):
+    #     """Initialize assigner and sampler."""
+    #     pass
+
+    @abstractmethod
+    def loss(self, x: Tuple[Tensor], data_samples: DetSampleList):
+        """Perform forward propagation and loss calculation of the roi head on
+        the features of the upstream network."""
+
+    @abstractmethod
+    def predict(self, x: Tuple[Tensor],
+                data_samples: DetSampleList) -> DetSampleList:
+        """Perform forward propagation of the roi head and predict detection
+        results on the features of the upstream network.
+
+        Args:
+            x (tuple[Tensor]): Features from upstream network. Each
+                has shape (N, C, H, W).
+            data_samples (List[:obj:`DetDataSample`]): The Data
+                Samples. It usually includes `gt_instance`
+
+        Returns:
+            list[obj:`DetDataSample`]: Detection results of each image.
+            Each item usually contains following keys in 'pred_instance'
+
+                - scores (Tensor): Classification scores, has a shape
+                  (num_instance, )
+                - labels (Tensor): Labels of bboxes, has a shape
+                  (num_instances, ).
+                - bboxes (Tensor): Has a shape (num_instances, 4),
+                  the last dimension 4 arrange as (x1, y1, x2, y2).
+                - polygon (List[Tensor]): Has a shape (num_instances, H, W).
+        """
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/bezier_roi_extractor.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/bezier_roi_extractor.py
new file mode 100644
index 0000000000000000000000000000000000000000..a4848d18e7c33eb6edad873eb376ed8f47480265
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/bezier_roi_extractor.py
@@ -0,0 +1,120 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List, Tuple
+
+import torch
+from mmengine.structures import InstanceData
+from torch import Tensor
+
+from mmocr.registry import MODELS
+from mmocr.utils import ConfigType, OptMultiConfig
+from .base_roi_extractor import BaseRoIExtractor
+
+
+@MODELS.register_module()
+class BezierRoIExtractor(BaseRoIExtractor):
+    """Extract RoI features from a single level feature map.
+
+    If there are multiple input feature levels, each RoI is mapped to a level
+    according to its scale. The mapping rule is proposed in
+    `FPN <https://arxiv.org/abs/1612.03144>`_.
+
+    Args:
+        roi_layer (:obj:`ConfigDict` or dict): Specify RoI layer type and
+            arguments.
+        out_channels (int): Output channels of RoI layers.
+        featmap_strides (List[int]): Strides of input feature maps.
+        finest_scale (int): Scale threshold of mapping to level 0.
+            Defaults to 56.
+        init_cfg (:obj:`ConfigDict` or dict or list[:obj:`ConfigDict` or \
+            dict], optional): Initialization config dict. Defaults to None.
+    """
+
+    def __init__(self,
+                 roi_layer: ConfigType,
+                 out_channels: int,
+                 featmap_strides: List[int],
+                 finest_scale: int = 96,
+                 init_cfg: OptMultiConfig = None) -> None:
+        super().__init__(
+            roi_layer=roi_layer,
+            out_channels=out_channels,
+            featmap_strides=featmap_strides,
+            init_cfg=init_cfg)
+        self.finest_scale = finest_scale
+
+    def to_roi(self, beziers: Tensor) -> Tensor:
+        rois_list = []
+        for img_id, bezier in enumerate(beziers):
+            img_inds = bezier.new_full((bezier.size(0), 1), img_id)
+            rois = torch.cat([img_inds, bezier], dim=-1)
+            rois_list.append(rois)
+        rois = torch.cat(rois_list, 0)
+        return rois
+
+    def map_roi_levels(self, beziers: Tensor, num_levels: int) -> Tensor:
+        """Map rois to corresponding feature levels by scales.
+
+        - scale < finest_scale * 2: level 0
+        - finest_scale * 2 <= scale < finest_scale * 4: level 1
+        - finest_scale * 4 <= scale < finest_scale * 8: level 2
+        - scale >= finest_scale * 8: level 3
+        Args:
+            beziers (Tensor): Input bezier control points, shape (k, 17).
+            num_levels (int): Total level number.
+        Returns:
+            Tensor: Level index (0-based) of each RoI, shape (k, )
+        """
+
+        p1 = beziers[:, 1:3]
+        p2 = beziers[:, 15:]
+        scale = ((p1 - p2)**2).sum(dim=1).sqrt() * 2
+        target_lvls = torch.floor(torch.log2(scale / self.finest_scale + 1e-6))
+        target_lvls = target_lvls.clamp(min=0, max=num_levels - 1).long()
+        return target_lvls
+
+    def forward(self, feats: Tuple[Tensor],
+                proposal_instances: List[InstanceData]) -> Tensor:
+        """Extractor ROI feats.
+
+        Args:
+            feats (Tuple[Tensor]): Multi-scale features.
+            proposal_instances(List[InstanceData]): Proposal instances.
+
+        Returns:
+            Tensor: RoI feature.
+        """
+        beziers = [p_i.beziers for p_i in proposal_instances]
+        rois = self.to_roi(beziers)
+        # convert fp32 to fp16 when amp is on
+        rois = rois.type_as(feats[0])
+        out_size = self.roi_layers[0].output_size
+        feats = feats[:3]
+        num_levels = len(feats)
+        roi_feats = feats[0].new_zeros(
+            rois.size(0), self.out_channels, *out_size)
+
+        if num_levels == 1:
+            if len(rois) == 0:
+                return roi_feats
+            return self.roi_layers[0](feats[0], rois)
+
+        target_lvls = self.map_roi_levels(rois, num_levels)
+
+        for i in range(num_levels):
+            mask = target_lvls == i
+            inds = mask.nonzero(as_tuple=False).squeeze(1)
+            if inds.numel() > 0:
+                rois_ = rois[inds]
+                roi_feats_t = self.roi_layers[i](feats[i], rois_)
+                roi_feats[inds] = roi_feats_t
+            else:
+                # Sometimes some pyramid levels will not be used for RoI
+                # feature extraction and this will cause an incomplete
+                # computation graph in one GPU, which is different from those
+                # in other GPUs and will cause a hanging error.
+                # Therefore, we add it to ensure each feature pyramid is
+                # included in the computation graph to avoid runtime bugs.
+                roi_feats += sum(
+                    x.view(-1)[0]
+                    for x in self.parameters()) * 0. + feats[i].sum() * 0.
+        return roi_feats
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/bifpn.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/bifpn.py
new file mode 100644
index 0000000000000000000000000000000000000000..7f117dffe62bcb12f267df612abd56b22ad6e547
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/bifpn.py
@@ -0,0 +1,242 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import List
+
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from mmcv.cnn import ConvModule
+from mmengine.model import BaseModule
+
+from mmocr.registry import MODELS
+from mmocr.utils import ConfigType, MultiConfig, OptConfigType
+
+
+@MODELS.register_module()
+class BiFPN(BaseModule):
+    """illustration of a minimal bifpn unit P7_0 ------------------------->
+    P7_2 -------->
+
+    |-------------|                ↑                  ↓                |
+    P6_0 ---------> P6_1 ---------> P6_2 -------->
+    |-------------|--------------↑ ↑                  ↓                | P5_0
+    ---------> P5_1 ---------> P5_2 -------->    |-------------|--------------↑
+    ↑                  ↓                | P4_0 ---------> P4_1 ---------> P4_2
+    -------->    |-------------|--------------↑ ↑
+    |--------------↓ | P3_0 -------------------------> P3_2 -------->
+    """
+
+    def __init__(self,
+                 in_channels: List[int],
+                 out_channels: int,
+                 num_outs: int,
+                 repeat_times: int = 2,
+                 start_level: int = 0,
+                 end_level: int = -1,
+                 add_extra_convs: bool = False,
+                 relu_before_extra_convs: bool = False,
+                 no_norm_on_lateral: bool = False,
+                 conv_cfg: OptConfigType = None,
+                 norm_cfg: OptConfigType = None,
+                 act_cfg: OptConfigType = None,
+                 laterial_conv1x1: bool = False,
+                 upsample_cfg: ConfigType = dict(mode='nearest'),
+                 pool_cfg: ConfigType = dict(),
+                 init_cfg: MultiConfig = dict(
+                     type='Xavier', layer='Conv2d', distribution='uniform')):
+        super().__init__(init_cfg=init_cfg)
+        assert isinstance(in_channels, list)
+        self.in_channels = in_channels
+        self.out_channels = out_channels
+        self.num_ins = len(in_channels)
+        self.num_outs = num_outs
+        self.relu_before_extra_convs = relu_before_extra_convs
+        self.no_norm_on_lateral = no_norm_on_lateral
+        self.upsample_cfg = upsample_cfg.copy()
+        self.repeat_times = repeat_times
+        if end_level == -1 or end_level == self.num_ins - 1:
+            self.backbone_end_level = self.num_ins
+            assert num_outs >= self.num_ins - start_level
+        else:
+            # if end_level is not the last level, no extra level is allowed
+            self.backbone_end_level = end_level + 1
+            assert end_level < self.num_ins
+            assert num_outs == end_level - start_level + 1
+        self.start_level = start_level
+        self.end_level = end_level
+        self.add_extra_convs = add_extra_convs
+
+        self.lateral_convs = nn.ModuleList()
+        self.extra_convs = nn.ModuleList()
+        self.bifpn_convs = nn.ModuleList()
+        for i in range(self.start_level, self.backbone_end_level):
+            if in_channels[i] == out_channels:
+                l_conv = nn.Identity()
+            else:
+                l_conv = ConvModule(
+                    in_channels[i],
+                    out_channels,
+                    1,
+                    conv_cfg=conv_cfg,
+                    norm_cfg=norm_cfg,
+                    bias=True,
+                    act_cfg=act_cfg,
+                    inplace=False)
+            self.lateral_convs.append(l_conv)
+
+        for _ in range(repeat_times):
+            self.bifpn_convs.append(
+                BiFPNLayer(
+                    channels=out_channels,
+                    levels=num_outs,
+                    conv_cfg=conv_cfg,
+                    norm_cfg=norm_cfg,
+                    act_cfg=act_cfg,
+                    pool_cfg=pool_cfg))
+
+        # add extra conv layers (e.g., RetinaNet)
+        extra_levels = num_outs - self.backbone_end_level + self.start_level
+        if add_extra_convs and extra_levels >= 1:
+            for i in range(extra_levels):
+                if i == 0:
+                    in_channels = self.in_channels[self.backbone_end_level - 1]
+                else:
+                    in_channels = out_channels
+                if in_channels == out_channels:
+                    extra_fpn_conv = nn.MaxPool2d(
+                        kernel_size=3, stride=2, padding=1)
+                else:
+                    extra_fpn_conv = nn.Sequential(
+                        ConvModule(
+                            in_channels=in_channels,
+                            out_channels=out_channels,
+                            kernel_size=1,
+                            norm_cfg=norm_cfg,
+                            act_cfg=act_cfg),
+                        nn.MaxPool2d(kernel_size=3, stride=2, padding=1))
+                self.extra_convs.append(extra_fpn_conv)
+
+    def forward(self, inputs):
+
+        def extra_convs(inputs, extra_convs):
+            outputs = list()
+            for extra_conv in extra_convs:
+                inputs = extra_conv(inputs)
+                outputs.append(inputs)
+            return outputs
+
+        assert len(inputs) == len(self.in_channels)
+
+        # build laterals
+        laterals = [
+            lateral_conv(inputs[i + self.start_level])
+            for i, lateral_conv in enumerate(self.lateral_convs)
+        ]
+        if self.num_outs > len(laterals) and self.add_extra_convs:
+            extra_source = inputs[self.backbone_end_level - 1]
+            for extra_conv in self.extra_convs:
+                extra_source = extra_conv(extra_source)
+                laterals.append(extra_source)
+
+        for bifpn_module in self.bifpn_convs:
+            laterals = bifpn_module(laterals)
+        outs = laterals
+
+        return tuple(outs)
+
+
+def swish(x):
+    return x * x.sigmoid()
+
+
+class BiFPNLayer(BaseModule):
+
+    def __init__(self,
+                 channels,
+                 levels,
+                 init=0.5,
+                 conv_cfg=None,
+                 norm_cfg=None,
+                 act_cfg=None,
+                 upsample_cfg=None,
+                 pool_cfg=None,
+                 eps=0.0001,
+                 init_cfg=None):
+        super().__init__(init_cfg=init_cfg)
+        self.act_cfg = act_cfg
+        self.upsample_cfg = upsample_cfg
+        self.pool_cfg = pool_cfg
+        self.eps = eps
+        self.levels = levels
+        self.bifpn_convs = nn.ModuleList()
+        # weighted
+        self.weight_two_nodes = nn.Parameter(
+            torch.Tensor(2, levels).fill_(init))
+        self.weight_three_nodes = nn.Parameter(
+            torch.Tensor(3, levels - 2).fill_(init))
+        self.relu = nn.ReLU()
+        for _ in range(2):
+            for _ in range(self.levels - 1):  # 1,2,3
+                fpn_conv = nn.Sequential(
+                    ConvModule(
+                        channels,
+                        channels,
+                        3,
+                        padding=1,
+                        conv_cfg=conv_cfg,
+                        norm_cfg=norm_cfg,
+                        act_cfg=act_cfg,
+                        inplace=False))
+                self.bifpn_convs.append(fpn_conv)
+
+    def forward(self, inputs):
+        assert len(inputs) == self.levels
+        # build top-down and down-top path with stack
+        levels = self.levels
+        # w relu
+        w1 = self.relu(self.weight_two_nodes)
+        w1 /= torch.sum(w1, dim=0) + self.eps  # normalize
+        w2 = self.relu(self.weight_three_nodes)
+        # w2 /= torch.sum(w2, dim=0) + self.eps  # normalize
+        # build top-down
+        idx_bifpn = 0
+        pathtd = inputs
+        inputs_clone = []
+        for in_tensor in inputs:
+            inputs_clone.append(in_tensor.clone())
+
+        for i in range(levels - 1, 0, -1):
+            _, _, h, w = pathtd[i - 1].shape
+            # pathtd[i - 1] = (
+            #     w1[0, i - 1] * pathtd[i - 1] + w1[1, i - 1] *
+            #     F.interpolate(pathtd[i], size=(h, w), mode='nearest')) / (
+            #         w1[0, i - 1] + w1[1, i - 1] + self.eps)
+            pathtd[i -
+                   1] = w1[0, i -
+                           1] * pathtd[i - 1] + w1[1, i - 1] * F.interpolate(
+                               pathtd[i], size=(h, w), mode='nearest')
+            pathtd[i - 1] = swish(pathtd[i - 1])
+            pathtd[i - 1] = self.bifpn_convs[idx_bifpn](pathtd[i - 1])
+            idx_bifpn = idx_bifpn + 1
+        # build down-top
+        for i in range(0, levels - 2, 1):
+            tmp_path = torch.stack([
+                inputs_clone[i + 1], pathtd[i + 1],
+                F.max_pool2d(pathtd[i], kernel_size=3, stride=2, padding=1)
+            ],
+                                   dim=-1)
+            norm_weight = w2[:, i] / (w2[:, i].sum() + self.eps)
+            pathtd[i + 1] = (norm_weight * tmp_path).sum(dim=-1)
+            # pathtd[i + 1] = w2[0, i] * inputs_clone[i + 1]
+            #     + w2[1, i] * pathtd[
+            #     i + 1] + w2[2, i] * F.max_pool2d(
+            #         pathtd[i], kernel_size=3, stride=2, padding=1)
+            pathtd[i + 1] = swish(pathtd[i + 1])
+            pathtd[i + 1] = self.bifpn_convs[idx_bifpn](pathtd[i + 1])
+            idx_bifpn = idx_bifpn + 1
+
+        pathtd[levels - 1] = w1[0, levels - 1] * pathtd[levels - 1] + w1[
+            1, levels - 1] * F.max_pool2d(
+                pathtd[levels - 2], kernel_size=3, stride=2, padding=1)
+        pathtd[levels - 1] = swish(pathtd[levels - 1])
+        pathtd[levels - 1] = self.bifpn_convs[idx_bifpn](pathtd[levels - 1])
+        return pathtd
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/coordinate_head.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/coordinate_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..dc31e88a628d0d8cd2f82cbdd4cc010eaea39938
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/coordinate_head.py
@@ -0,0 +1,56 @@
+import torch
+import torch.nn as nn
+from mmcv.cnn import ConvModule
+from mmengine.model import BaseModule
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class CoordinateHead(BaseModule):
+
+    def __init__(self,
+                 in_channel=256,
+                 conv_num=4,
+                 norm_cfg=dict(type='BN'),
+                 act_cfg=dict(type='ReLU'),
+                 init_cfg=None):
+        super().__init__(init_cfg=init_cfg)
+
+        mask_convs = list()
+        for i in range(conv_num):
+            if i == 0:
+                mask_conv = ConvModule(
+                    in_channels=in_channel + 2,  # 2 for coord
+                    out_channels=in_channel,
+                    kernel_size=3,
+                    padding=1,
+                    norm_cfg=norm_cfg,
+                    act_cfg=act_cfg)
+            else:
+                mask_conv = ConvModule(
+                    in_channels=in_channel,
+                    out_channels=in_channel,
+                    kernel_size=3,
+                    padding=1,
+                    norm_cfg=norm_cfg,
+                    act_cfg=act_cfg)
+            mask_convs.append(mask_conv)
+        self.mask_convs = nn.Sequential(*mask_convs)
+
+    def forward(self, features):
+        coord_features = list()
+        for feature in features:
+            x_range = torch.linspace(
+                -1, 1, feature.shape[-1], device=feature.device)
+            y_range = torch.linspace(
+                -1, 1, feature.shape[-2], device=feature.device)
+            y, x = torch.meshgrid(y_range, x_range)
+            y = y.expand([feature.shape[0], 1, -1, -1])
+            x = x.expand([feature.shape[0], 1, -1, -1])
+            coord = torch.cat([x, y], 1)
+            feature_with_coord = torch.cat([feature, coord], dim=1)
+            feature_with_coord = self.mask_convs(feature_with_coord)
+            feature_with_coord = feature_with_coord + feature
+            coord_features.append(feature_with_coord)
+        return coord_features
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/rec_roi_head.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/rec_roi_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..a102902c530dca85f2f87be1b5dec8882ac26b2b
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/rec_roi_head.py
@@ -0,0 +1,70 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Tuple
+
+from mmengine.structures import LabelData
+from torch import Tensor
+
+from mmocr.registry import MODELS, TASK_UTILS
+from mmocr.structures import TextRecogDataSample  # noqa F401
+from mmocr.utils import DetSampleList, OptMultiConfig, RecSampleList
+from .base_roi_head import BaseRoIHead
+
+
+@MODELS.register_module()
+class RecRoIHead(BaseRoIHead):
+    """Simplest base roi head including one bbox head and one mask head."""
+
+    def __init__(self,
+                 neck=None,
+                 sampler: OptMultiConfig = None,
+                 roi_extractor: OptMultiConfig = None,
+                 rec_head: OptMultiConfig = None,
+                 init_cfg=None):
+        super().__init__(init_cfg)
+        if sampler is not None:
+            self.sampler = TASK_UTILS.build(sampler)
+        if neck is not None:
+            self.neck = MODELS.build(neck)
+        self.roi_extractor = MODELS.build(roi_extractor)
+        self.rec_head = MODELS.build(rec_head)
+
+    def loss(self, inputs: Tuple[Tensor], data_samples: DetSampleList) -> dict:
+        """Perform forward propagation and loss calculation of the detection
+        roi on the features of the upstream network.
+
+        Args:
+            x (tuple[Tensor]): List of multi-level img features.
+            rpn_results_list (list[:obj:`InstanceData`]): List of region
+                proposals.
+            DetSampleList (list[:obj:`DetDataSample`]): The batch
+                data samples. It usually includes information such
+                as `gt_instance` or `gt_panoptic_seg` or `gt_sem_seg`.
+
+        Returns:
+            dict[str, Tensor]: A dictionary of loss components
+        """
+        proposals = [
+            ds.gt_instances[~ds.gt_instances.ignored] for ds in data_samples
+        ]
+
+        proposals = [p for p in proposals if len(p) > 0]
+        bbox_feats = self.roi_extractor(inputs, proposals)
+        rec_data_samples = [
+            TextRecogDataSample(gt_text=LabelData(item=text))
+            for proposal in proposals for text in proposal.texts
+        ]
+        return self.rec_head.loss(bbox_feats, rec_data_samples)
+
+    def predict(self, inputs: Tuple[Tensor],
+                data_samples: DetSampleList) -> RecSampleList:
+        if hasattr(self, 'neck') and self.neck is not None:
+            inputs = self.neck(inputs)
+        pred_instances = [ds.pred_instances for ds in data_samples]
+        bbox_feats = self.roi_extractor(inputs, pred_instances)
+        if bbox_feats.size(0) == 0:
+            return []
+        len_instance = sum(
+            [len(instance_data) for instance_data in pred_instances])
+        rec_data_samples = [TextRecogDataSample() for _ in range(len_instance)]
+        rec_data_samples = self.rec_head.predict(bbox_feats, rec_data_samples)
+        return rec_data_samples
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/model/two_stage_text_spotting.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/two_stage_text_spotting.py
new file mode 100644
index 0000000000000000000000000000000000000000..4a9bd8efc7f832b6fa3273af4eff9a6b670b3356
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/model/two_stage_text_spotting.py
@@ -0,0 +1,93 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict
+
+import torch
+
+from mmocr.models.textdet.detectors.base import BaseTextDetector
+from mmocr.registry import MODELS
+from mmocr.utils import OptConfigType, OptDetSampleList, OptMultiConfig
+
+
+@MODELS.register_module()
+class TwoStageTextSpotter(BaseTextDetector):
+    """Two-stage text spotter.
+
+    Args:
+        backbone (dict, optional): Config dict for text spotter backbone.
+            Defaults to None.
+        neck (dict, optional): Config dict for text spotter neck. Defaults to
+            None.
+        det_head (dict, optional): Config dict for text spotter head. Defaults
+            to None.
+        roi_head (dict, optional): Config dict for text spotter roi head.
+            Defaults to None.
+        data_preprocessor (dict, optional): Config dict for text spotter data
+            preprocessor. Defaults to None.
+        init_cfg (dict, optional): Initialization config dict. Defaults to
+            None.
+    """
+
+    def __init__(self,
+                 backbone: OptConfigType = None,
+                 neck: OptConfigType = None,
+                 det_head: OptConfigType = None,
+                 roi_head: OptConfigType = None,
+                 postprocessor: OptConfigType = None,
+                 data_preprocessor: OptConfigType = None,
+                 init_cfg: OptMultiConfig = None) -> None:
+
+        super().__init__(
+            data_preprocessor=data_preprocessor, init_cfg=init_cfg)
+
+        self.backbone = MODELS.build(backbone)
+        if neck is not None:
+            self.neck = MODELS.build(neck)
+        if det_head is not None:
+            self.det_head = MODELS.build(det_head)
+
+        if roi_head is not None:
+            self.roi_head = MODELS.build(roi_head)
+
+        if postprocessor is not None:
+            self.postprocessor = MODELS.build(postprocessor)
+
+    @property
+    def with_det_head(self):
+        """bool: whether the detector has RPN"""
+        return hasattr(self, 'det_head') and self.det_head is not None
+
+    @property
+    def with_roi_head(self):
+        """bool: whether the detector has a RoI head"""
+        return hasattr(self, 'roi_head') and self.roi_head is not None
+
+    def extract_feat(self, img):
+        """Directly extract features from the backbone+neck."""
+        x = self.backbone(img)
+        if self.with_neck:
+            x = self.neck(x)
+        return x
+
+    def loss(self, inputs: torch.Tensor,
+             data_samples: OptDetSampleList) -> Dict:
+        losses = dict()
+        inputs = self.extract_feat(inputs)
+        det_loss, data_samples = self.det_head.loss_and_predict(
+            inputs, data_samples)
+        roi_losses = self.roi_head.loss(inputs, data_samples)
+        losses.update(det_loss)
+        losses.update(roi_losses)
+        return losses
+
+    def predict(self, inputs: torch.Tensor,
+                data_samples: OptDetSampleList) -> OptDetSampleList:
+        """Predict results from a batch of inputs and data samples with post-
+        processing."""
+        inputs = self.extract_feat(inputs)
+        data_samples = self.det_head.predict(inputs, data_samples)
+        rec_data_samples = self.roi_head.predict(inputs, data_samples)
+        return self.postprocessor(data_samples, rec_data_samples)
+
+    def _forward(self, inputs: torch.Tensor,
+                 data_samples: OptDetSampleList) -> torch.Tensor:
+        pass
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/utils/__init__.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/utils/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..d0007ffae850901ee62e43beebfe56fc2865cf73
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/utils/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .bezier_utils import bezier2poly, poly2bezier
+
+__all__ = ['poly2bezier', 'bezier2poly']
diff --git a/mmocr-dev-1.x/projects/ABCNet/abcnet/utils/bezier_utils.py b/mmocr-dev-1.x/projects/ABCNet/abcnet/utils/bezier_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..d93a6293926e2d807eb089bf92835e39a4ef5d84
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/abcnet/utils/bezier_utils.py
@@ -0,0 +1,62 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import numpy as np
+from scipy.special import comb as n_over_k
+
+from mmocr.utils.typing_utils import ArrayLike
+
+
+def bezier_coefficient(n, t, k):
+    return t**k * (1 - t)**(n - k) * n_over_k(n, k)
+
+
+def bezier_coefficients(time, point_num, ratios):
+    return [[bezier_coefficient(time, ratio, num) for num in range(point_num)]
+            for ratio in ratios]
+
+
+def linear_interpolation(point1: np.ndarray,
+                         point2: np.ndarray,
+                         number: int = 2) -> np.ndarray:
+    t = np.linspace(0, 1, number + 2).reshape(-1, 1)
+    return point1 + (point2 - point1) * t
+
+
+def curve2bezier(curve: ArrayLike):
+    curve = np.array(curve).reshape(-1, 2)
+    if len(curve) == 2:
+        return linear_interpolation(curve[0], curve[1])
+    diff = curve[1:] - curve[:-1]
+    distance = np.linalg.norm(diff, axis=-1)
+    norm_distance = distance / distance.sum()
+    norm_distance = np.hstack(([0], norm_distance))
+    cum_norm_dis = norm_distance.cumsum()
+    pseudo_inv = np.linalg.pinv(bezier_coefficients(3, 4, cum_norm_dis))
+    control_points = pseudo_inv.dot(curve)
+    return control_points
+
+
+def bezier2curve(bezier: np.ndarray, num_sample: int = 10):
+    bezier = np.asarray(bezier)
+    t = np.linspace(0, 1, num_sample)
+    return np.array(bezier_coefficients(3, 4, t)).dot(bezier)
+
+
+def poly2bezier(poly):
+    poly = np.array(poly).reshape(-1, 2)
+    points_num = len(poly)
+    up_curve = poly[:points_num // 2]
+    down_curve = poly[points_num // 2:]
+    up_bezier = curve2bezier(up_curve)
+    down_bezier = curve2bezier(down_curve)
+    up_bezier[0] = up_curve[0]
+    up_bezier[-1] = up_curve[-1]
+    down_bezier[0] = down_curve[0]
+    down_bezier[-1] = down_curve[-1]
+    return np.vstack((up_bezier, down_bezier)).flatten().tolist()
+
+
+def bezier2poly(bezier, num_sample=20):
+    bezier = bezier.reshape(2, 4, 2)
+    curve_top = bezier2curve(bezier[0], num_sample)
+    curve_bottom = bezier2curve(bezier[1], num_sample)
+    return np.vstack((curve_top, curve_bottom)).flatten().tolist()
diff --git a/mmocr-dev-1.x/projects/ABCNet/config/_base_/datasets/icdar2015.py b/mmocr-dev-1.x/projects/ABCNet/config/_base_/datasets/icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..240f1347fda7057aa20f009e493aca368d097954
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/config/_base_/datasets/icdar2015.py
@@ -0,0 +1,15 @@
+icdar2015_textspotting_data_root = 'data/icdar2015'
+
+icdar2015_textspotting_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textspotting_data_root,
+    ann_file='textspotting_train.json',
+    pipeline=None)
+
+icdar2015_textspotting_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textspotting_data_root,
+    ann_file='textspotting_test.json',
+    test_mode=True,
+    # indices=50,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/ABCNet/config/_base_/default_runtime.py b/mmocr-dev-1.x/projects/ABCNet/config/_base_/default_runtime.py
new file mode 100644
index 0000000000000000000000000000000000000000..4b9b72c53f6285ebb2a205982226066b4e21178e
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/config/_base_/default_runtime.py
@@ -0,0 +1,41 @@
+default_scope = 'mmocr'
+env_cfg = dict(
+    cudnn_benchmark=False,
+    mp_cfg=dict(mp_start_method='fork', opencv_num_threads=0),
+    dist_cfg=dict(backend='nccl'),
+)
+randomness = dict(seed=None)
+
+default_hooks = dict(
+    timer=dict(type='IterTimerHook'),
+    logger=dict(type='LoggerHook', interval=5),
+    param_scheduler=dict(type='ParamSchedulerHook'),
+    checkpoint=dict(type='CheckpointHook', interval=20),
+    sampler_seed=dict(type='DistSamplerSeedHook'),
+    sync_buffer=dict(type='SyncBuffersHook'),
+    visualization=dict(
+        type='VisualizationHook',
+        interval=1,
+        enable=False,
+        show=False,
+        draw_gt=False,
+        draw_pred=False),
+)
+
+# Logging
+log_level = 'INFO'
+log_processor = dict(type='LogProcessor', window_size=10, by_epoch=True)
+
+load_from = None
+resume = False
+
+# Evaluation
+val_evaluator = [dict(type='E2EHmeanIOUMetric'), dict(type='HmeanIOUMetric')]
+test_evaluator = val_evaluator
+
+# Visualization
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextSpottingLocalVisualizer',
+    name='visualizer',
+    vis_backends=vis_backends)
diff --git a/mmocr-dev-1.x/projects/ABCNet/config/_base_/schedules/schedule_sgd_500e.py b/mmocr-dev-1.x/projects/ABCNet/config/_base_/schedules/schedule_sgd_500e.py
new file mode 100644
index 0000000000000000000000000000000000000000..431c48ff9ddfbcd25425007c633014d68f5a64e0
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/config/_base_/schedules/schedule_sgd_500e.py
@@ -0,0 +1,12 @@
+# optimizer
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='SGD', lr=0.001, momentum=0.9, weight_decay=0.0001),
+    clip_grad=dict(type='value', clip_value=1))
+train_cfg = dict(type='EpochBasedTrainLoop', max_epochs=500, val_interval=20)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+# learning policy
+param_scheduler = [
+    dict(type='LinearLR', end=1000, start_factor=0.001, by_epoch=False),
+]
diff --git a/mmocr-dev-1.x/projects/ABCNet/config/abcnet/_base_abcnet_resnet50_fpn.py b/mmocr-dev-1.x/projects/ABCNet/config/abcnet/_base_abcnet_resnet50_fpn.py
new file mode 100644
index 0000000000000000000000000000000000000000..05d570132485a43aa1afb8646f9aaa609a42f286
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/config/abcnet/_base_abcnet_resnet50_fpn.py
@@ -0,0 +1,165 @@
+num_classes = 1
+strides = [8, 16, 32, 64, 128]
+bbox_coder = dict(type='mmdet.DistancePointBBoxCoder')
+with_bezier = True
+norm_on_bbox = True
+use_sigmoid_cls = True
+
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../dicts/abcnet.txt',
+    with_start=False,
+    with_end=False,
+    same_start_end=False,
+    with_padding=True,
+    with_unknown=True)
+
+model = dict(
+    type='ABCNet',
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53][::-1],
+        std=[1, 1, 1],
+        bgr_to_rgb=False,
+        pad_size_divisor=32),
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=1,
+        norm_cfg=dict(type='BN', requires_grad=False),
+        norm_eval=True,
+        style='caffe',
+        init_cfg=dict(
+            type='Pretrained',
+            checkpoint='open-mmlab://detectron2/resnet50_caffe')),
+    neck=dict(
+        type='mmdet.FPN',
+        in_channels=[256, 512, 1024, 2048],
+        out_channels=256,
+        start_level=0,
+        add_extra_convs='on_output',  # use P5
+        num_outs=6,
+        relu_before_extra_convs=True),
+    det_head=dict(
+        type='ABCNetDetHead',
+        num_classes=num_classes,
+        in_channels=256,
+        stacked_convs=4,
+        feat_channels=256,
+        strides=strides,
+        norm_on_bbox=norm_on_bbox,
+        use_sigmoid_cls=use_sigmoid_cls,
+        centerness_on_reg=True,
+        dcn_on_last_conv=False,
+        conv_bias=True,
+        use_scale=False,
+        with_bezier=with_bezier,
+        init_cfg=dict(
+            type='Normal',
+            layer='Conv2d',
+            std=0.01,
+            override=dict(
+                type='Normal',
+                name='conv_cls',
+                std=0.01,
+                bias=-4.59511985013459),  # -log((1-p)/p) where p=0.01
+        ),
+        module_loss=dict(
+            type='ABCNetDetModuleLoss',
+            num_classes=num_classes,
+            strides=strides,
+            center_sampling=True,
+            center_sample_radius=1.5,
+            bbox_coder=bbox_coder,
+            norm_on_bbox=norm_on_bbox,
+            loss_cls=dict(
+                type='mmdet.FocalLoss',
+                use_sigmoid=use_sigmoid_cls,
+                gamma=2.0,
+                alpha=0.25,
+                loss_weight=1.0),
+            loss_bbox=dict(type='mmdet.GIoULoss', loss_weight=1.0),
+            loss_centerness=dict(
+                type='mmdet.CrossEntropyLoss',
+                use_sigmoid=True,
+                loss_weight=1.0)),
+        postprocessor=dict(
+            type='ABCNetDetPostprocessor',
+            use_sigmoid_cls=use_sigmoid_cls,
+            strides=[8, 16, 32, 64, 128],
+            bbox_coder=dict(type='mmdet.DistancePointBBoxCoder'),
+            with_bezier=True,
+            test_cfg=dict(
+                nms_pre=1000,
+                nms=dict(type='nms', iou_threshold=0.5),
+                score_thr=0.3))),
+    roi_head=dict(
+        type='RecRoIHead',
+        roi_extractor=dict(
+            type='BezierRoIExtractor',
+            roi_layer=dict(
+                type='BezierAlign', output_size=(8, 32), sampling_ratio=1.0),
+            out_channels=256,
+            featmap_strides=[4, 8, 16]),
+        rec_head=dict(
+            type='ABCNetRec',
+            backbone=dict(type='ABCNetRecBackbone'),
+            encoder=dict(type='ABCNetRecEncoder'),
+            decoder=dict(
+                type='ABCNetRecDecoder',
+                dictionary=dictionary,
+                postprocessor=dict(
+                    type='AttentionPostprocessor',
+                    ignore_chars=['padding', 'unknown']),
+                module_loss=dict(
+                    type='CEModuleLoss',
+                    ignore_first_char=False,
+                    ignore_char=-1,
+                    reduction='mean'),
+                max_seq_len=25))),
+    postprocessor=dict(
+        type='ABCNetPostprocessor',
+        rescale_fields=['polygons', 'bboxes', 'beziers'],
+    ))
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(2000, 4000), keep_ratio=True, backend='pillow'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+        with_text=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+        with_text=True),
+    dict(type='RemoveIgnored'),
+    dict(type='RandomCrop', min_side_ratio=0.1),
+    dict(
+        type='RandomRotate',
+        max_angle=30,
+        pad_with_fixed_color=True,
+        use_canvas=True),
+    dict(
+        type='RandomChoiceResize',
+        scales=[(980, 2900), (1044, 2900), (1108, 2900), (1172, 2900),
+                (1236, 2900), (1300, 2900), (1364, 2900), (1428, 2900),
+                (1492, 2900)],
+        keep_ratio=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/projects/ABCNet/config/abcnet/abcnet_resnet50_fpn_500e_icdar2015.py b/mmocr-dev-1.x/projects/ABCNet/config/abcnet/abcnet_resnet50_fpn_500e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..424a35254ebdd3050e8e13b506b7ee5d97a565fb
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/config/abcnet/abcnet_resnet50_fpn_500e_icdar2015.py
@@ -0,0 +1,37 @@
+_base_ = [
+    '_base_abcnet_resnet50_fpn.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+    '../_base_/schedules/schedule_sgd_500e.py',
+]
+
+# dataset settings
+icdar2015_textspotting_train = _base_.icdar2015_textspotting_train
+icdar2015_textspotting_train.pipeline = _base_.train_pipeline
+icdar2015_textspotting_test = _base_.icdar2015_textspotting_test
+icdar2015_textspotting_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=2,
+    num_workers=8,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=True),
+    dataset=icdar2015_textspotting_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textspotting_test)
+
+test_dataloader = val_dataloader
+
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+custom_imports = dict(imports=['abcnet'], allow_failed_imports=False)
+
+load_from = 'https://download.openmmlab.com/mmocr/textspotting/abcnet/abcnet_resnet50_fpn_500e_icdar2015/abcnet_resnet50_fpn_pretrain-d060636c.pth'  # noqa
+
+find_unused_parameters = True
diff --git a/mmocr-dev-1.x/projects/ABCNet/config/abcnet_v2/_base_abcnet-v2_resnet50_bifpn.py b/mmocr-dev-1.x/projects/ABCNet/config/abcnet_v2/_base_abcnet-v2_resnet50_bifpn.py
new file mode 100644
index 0000000000000000000000000000000000000000..b6bca5a6c292b663ba440df087265828f76a646a
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/config/abcnet_v2/_base_abcnet-v2_resnet50_bifpn.py
@@ -0,0 +1,118 @@
+num_classes = 1
+strides = [8, 16, 32, 64, 128]
+bbox_coder = dict(type='mmdet.DistancePointBBoxCoder')
+with_bezier = True
+norm_on_bbox = True
+use_sigmoid_cls = True
+
+dictionary = dict(
+    type='Dictionary',
+    dict_file='{{ fileDirname }}/../../dicts/abcnet.txt',
+    with_start=False,
+    with_end=False,
+    same_start_end=False,
+    with_padding=True,
+    with_unknown=True)
+
+model = dict(
+    type='ABCNet',
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        mean=[123.675, 116.28, 103.53][::-1],
+        std=[1, 1, 1],
+        bgr_to_rgb=False,
+        pad_size_divisor=32),
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=1,
+        norm_cfg=dict(type='BN', requires_grad=False),
+        norm_eval=True,
+        style='caffe',
+        init_cfg=dict(
+            type='Pretrained',
+            checkpoint='open-mmlab://detectron2/resnet50_caffe')),
+    neck=dict(
+        type='BiFPN',
+        in_channels=[256, 512, 1024, 2048],
+        out_channels=256,
+        start_level=0,
+        add_extra_convs=True,  # use P5
+        norm_cfg=dict(type='BN'),
+        num_outs=6,
+        relu_before_extra_convs=True),
+    det_head=dict(
+        type='ABCNetDetHead',
+        num_classes=num_classes,
+        in_channels=256,
+        stacked_convs=4,
+        feat_channels=256,
+        strides=strides,
+        norm_on_bbox=norm_on_bbox,
+        use_sigmoid_cls=use_sigmoid_cls,
+        centerness_on_reg=True,
+        dcn_on_last_conv=False,
+        conv_bias=True,
+        use_scale=False,
+        with_bezier=with_bezier,
+        init_cfg=dict(
+            type='Normal',
+            layer='Conv2d',
+            std=0.01,
+            override=dict(
+                type='Normal',
+                name='conv_cls',
+                std=0.01,
+                bias=-4.59511985013459),  # -log((1-p)/p) where p=0.01
+        ),
+        module_loss=None,
+        postprocessor=dict(
+            type='ABCNetDetPostprocessor',
+            # rescale_fields=['polygons', 'bboxes'],
+            use_sigmoid_cls=use_sigmoid_cls,
+            strides=[8, 16, 32, 64, 128],
+            bbox_coder=dict(type='mmdet.DistancePointBBoxCoder'),
+            with_bezier=True,
+            test_cfg=dict(
+                # rescale_fields=['polygon', 'bboxes', 'bezier'],
+                nms_pre=1000,
+                nms=dict(type='nms', iou_threshold=0.4),
+                score_thr=0.3))),
+    roi_head=dict(
+        type='RecRoIHead',
+        neck=dict(type='CoordinateHead'),
+        roi_extractor=dict(
+            type='BezierRoIExtractor',
+            roi_layer=dict(
+                type='BezierAlign', output_size=(16, 64), sampling_ratio=1.0),
+            out_channels=256,
+            featmap_strides=[4, 8, 16]),
+        rec_head=dict(
+            type='ABCNetRec',
+            backbone=dict(type='ABCNetRecBackbone'),
+            encoder=dict(type='ABCNetRecEncoder'),
+            decoder=dict(
+                type='ABCNetRecDecoder',
+                dictionary=dictionary,
+                postprocessor=dict(type='AttentionPostprocessor'),
+                max_seq_len=25))),
+    postprocessor=dict(
+        type='ABCNetPostprocessor',
+        rescale_fields=['polygons', 'bboxes', 'beziers'],
+    ))
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(type='Resize', scale=(2000, 4000), keep_ratio=True, backend='pillow'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_polygon=True,
+        with_bbox=True,
+        with_label=True,
+        with_text=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/projects/ABCNet/config/abcnet_v2/abcnet-v2_resnet50_bifpn_500e_icdar2015.py b/mmocr-dev-1.x/projects/ABCNet/config/abcnet_v2/abcnet-v2_resnet50_bifpn_500e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..5b51f562438981299cd009349f795a4379eb9f96
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/config/abcnet_v2/abcnet-v2_resnet50_bifpn_500e_icdar2015.py
@@ -0,0 +1,23 @@
+_base_ = [
+    '_base_abcnet-v2_resnet50_bifpn.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+]
+
+# dataset settings
+icdar2015_textspotting_test = _base_.icdar2015_textspotting_test
+icdar2015_textspotting_test.pipeline = _base_.test_pipeline
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textspotting_test)
+
+test_dataloader = val_dataloader
+
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+custom_imports = dict(imports=['abcnet'], allow_failed_imports=False)
diff --git a/mmocr-dev-1.x/projects/ABCNet/dicts/abcnet.txt b/mmocr-dev-1.x/projects/ABCNet/dicts/abcnet.txt
new file mode 100644
index 0000000000000000000000000000000000000000..173d6c4a7ad83dcb6cdb3d177456d0b4d553c01c
--- /dev/null
+++ b/mmocr-dev-1.x/projects/ABCNet/dicts/abcnet.txt
@@ -0,0 +1,95 @@
+ 
+!
+"
+#
+$
+%
+&
+'
+(
+)
+*
++
+,
+-
+.
+/
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+:
+;
+<
+=
+>
+?
+@
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
+[
+\
+]
+^
+_
+`
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+{
+|
+}
+~
\ No newline at end of file
diff --git a/mmocr-dev-1.x/projects/README.md b/mmocr-dev-1.x/projects/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..b9dc68752a1dd491eb2d3c43debe665fd00fa77a
--- /dev/null
+++ b/mmocr-dev-1.x/projects/README.md
@@ -0,0 +1,13 @@
+# Projects
+
+The OpenMMLab ecosystem can only grow through the contributions of the community.
+Everyone is welcome to post their implementation of any great ideas in this folder! If you wish to start your own project, please go through the [example project](example_project/) for the best practice. For common questions about projects, please read our [faq](faq.md).
+
+## External Projects
+
+Here we lists some selected external projects released in the community built upon MMOCR:
+
+- [TableMASTER-mmocr](https://github.com/JiaquanYe/TableMASTER-mmocr)
+- [WordArt](https://github.com/xdxie/WordArt)
+
+Note: The core maintainers of MMOCR only ensure the results are reproducible and the code quality meets its claim at the time each project was submitted, but they may not be responsible for future maintenance. The original authors take responsibility for maintaining their own projects.
diff --git a/mmocr-dev-1.x/projects/SPTS/README.md b/mmocr-dev-1.x/projects/SPTS/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..af4a4f9b3ba78979ff725c5ba2e58b8472984e3f
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/README.md
@@ -0,0 +1,186 @@
+# SPTS: Single-Point Text Spotting
+
+<div>
+<a href="https://arxiv.org/abs/2112.07917">[arXiv paper]</a>
+</div>
+
+## Description
+
+This is an implementation of [SPTS](https://github.com/shannanyinxiang/SPTS) based on [MMOCR](https://github.com/open-mmlab/mmocr/tree/dev-1.x), [MMCV](https://github.com/open-mmlab/mmcv), and [MMEngine](https://github.com/open-mmlab/mmengine).
+
+Existing scene text spotting (i.e., end-to-end text detection and recognition) methods rely on costly bounding box annotations (e.g., text-line, word-level, or character-level bounding boxes). For the first time, we demonstrate that training scene text spotting models can be achieved with an extremely low-cost annotation of a single-point for each instance. We propose an end-to-end scene text spotting method that tackles scene text spotting as a sequence prediction task. Given an image as input, we formulate the desired detection and recognition results as a sequence of discrete tokens and use an auto-regressive Transformer to predict the sequence. The proposed method is simple yet effective, which can achieve state-of-the-art results on widely used benchmarks. Most significantly, we show that the performance is not very sensitive to the positions of the point annotation, meaning that it can be much easier to be annotated or even be automatically generated than the bounding box that requires precise positions. We believe that such a pioneer attempt indicates a significant opportunity for scene text spotting applications of a much larger scale than previously possible.
+
+<center>
+<img src="https://user-images.githubusercontent.com/22607038/215685203-fbf2d00c-39d3-48bb-9d05-4fd28c56431c.png">
+</center>
+
+## Usage
+
+<!-- For a typical model, this section should contain the commands for training and testing. You are also suggested to dump your environment specification to env.yml by `conda env export > env.yml`. -->
+
+### Prerequisites
+
+- Python 3.7
+- PyTorch 1.6 or higher
+- [MIM](https://github.com/open-mmlab/mim)
+- [MMOCR](https://github.com/open-mmlab/mmocr)
+
+All the commands below rely on the correct configuration of `PYTHONPATH`, which should point to the project's directory so that Python can locate the module files. In `SPTS/` root directory, run the following line to add the current directory to `PYTHONPATH`:
+
+```shell
+# Linux
+export PYTHONPATH=`pwd`:$PYTHONPATH
+# Windows PowerShell
+$env:PYTHONPATH=Get-Location
+```
+
+### Dataset
+
+As of now, the implementation uses datasets provided by SPTS for **pre-training**, and uses MMOCR's datasets for **fine-tuning and testing**. It's because the test split of SPTS's datasets does not contain enough information for e2e evaluation; and MMOCR's dataset preparer has not yet supported all the datasets used in SPTS. *We are working on this issue, and they will be available in MMOCR's dataset preparer very soon.*
+
+Please follow these steps to prepare the datasets:
+
+- Download and extract all the SPTS datasets into `spts-data/` following [SPTS official guide](https://github.com/shannanyinxiang/SPTS#dataset).
+
+- Use [Dataset Preparer](https://mmocr.readthedocs.io/en/dev-1.x/user_guides/data_prepare/dataset_preparer.html) to prepare `icdar2013`, `icdar2015` and `totaltext` for `textspotting` task.
+
+  ```shell
+  # Run in MMOCR's root directory
+  python tools/dataset_converters/prepare_dataset.py icdar2013 icdar2015 totaltext  --task textspotting
+  ```
+
+  Then create a soft link to `data/` directory in the project root directory:
+
+  ```shell
+  ln -s ../../data/ .
+  ```
+
+### Training commands
+
+In the current directory, run the following command to train the model:
+
+#### Pretrain
+
+```bash
+mim train mmocr config/spts/spts_resnet50_8xb8-150e_pretrain-spts.py --work-dir work_dirs/ --amp
+```
+
+To train on multiple GPUs, e.g. 8 GPUs, run the following command:
+
+```bash
+mim train mmocr config/spts/spts_resnet50_8xb8-150e_pretrain-spts.py --work-dir work_dirs/ --launcher pytorch --gpus 8 --amp
+```
+
+#### Finetune
+
+Similarly, run the following command to finetune the model on a dataset (e.g. icdar2013):
+
+```bash
+mim train mmocr config/spts/spts_resnet50_8xb8-200e_icdar2013.py --work-dir work_dirs/ --cfg-options "load_from={CHECKPOINT_PATH}" --amp
+```
+
+To finetune on multiple GPUs, e.g. 8 GPUs, run the following command:
+
+```bash
+mim train mmocr config/spts/spts_resnet50_8xb8-200e_icdar2013.py --work-dir work_dirs/ --launcher pytorch --gpus 8 --cfg-options "load_from={CHECKPOINT_PATH}" --amp
+```
+
+### Testing commands
+
+In the current directory, run the following command to test the model on a dataset (e.g. icdar2013):
+
+```bash
+mim test mmocr config/spts/spts_resnet50_8xb8-200e_icdar2013.py --work-dir work_dirs/ --checkpoint ${CHECKPOINT_PATH}
+```
+
+## Convert Weights from Official Repo
+
+Users may download the weights from [SPTS](https://github.com/shannanyinxiang/SPTS#inference) and use the conversion script to convert them into MMOCR format.
+
+```bash
+python tools/ckpt_adapter.py [SPTS_WEIGHTS_PATH] [MMOCR_WEIGHTS_PATH]
+```
+
+## Results
+
+All the models are trained on 8x A100 GPUs with AMP on (`--amp`). The overall batch size is 64.
+
+| Name       | Pretrained                                                                              | Generic | Weak  | Strong | Download                                                                              |
+| ---------- | --------------------------------------------------------------------------------------- | ------- | ----- | ------ | ------------------------------------------------------------------------------------- |
+| ICDAR 2013 | [model](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_150e_pretrain-spts/spts_resnet50_150e_pretrain-spts-c9fe4c78.pth) / [log](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_150e_pretrain-spts/20230223_194550.log) | 87.10   | 91.46 | 93.41  | [model](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_200e_icdar2013/spts_resnet50_200e_icdar2013-64cb4d31.pth) / [log](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_200e_icdar2013/20230303_140316.log) |
+| ICDAR 2015 | [model](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_150e_pretrain-spts/spts_resnet50_150e_pretrain-spts-c9fe4c78.pth) / [log](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_150e_pretrain-spts/20230223_194550.log) | 69.09   | 73.45 | 79.19  | [model](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_200e_icdar2015/spts_resnet50_200e_icdar2015-d6e8621c.pth) / [log](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_200e_icdar2015/20230302_230026.log) |
+
+|   Name    | Pretrained                                                                             | None-Hmean | Full-Hmean | Download                                                                              |
+| :-------: | -------------------------------------------------------------------------------------- | :--------: | :--------: | ------------------------------------------------------------------------------------- |
+| Totaltext | [model](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_150e_pretrain-spts/spts_resnet50_150e_pretrain-spts-c9fe4c78.pth) / [log](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_150e_pretrain-spts/20230223_194550.log) |   73.99    |   82.34    | [model](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_200e_totaltext/spts_resnet50_200e_totaltext-e3521af6.pth) / [log](https://download.openmmlab.com/mmocr/textspotting/spts/spts_resnet50_200e_totaltext/20230303_103040.log) |
+
+## Citation
+
+If you find SPTS useful in your research or applications, please cite SPTS with the following BibTeX entry.
+
+```BibTeX
+@inproceedings{peng2022spts,
+  title={SPTS: Single-Point Text Spotting},
+  author={Peng, Dezhi and Wang, Xinyu and Liu, Yuliang and Zhang, Jiaxin and Huang, Mingxin and Lai, Songxuan and Zhu, Shenggao and Li, Jing and Lin, Dahua and Shen, Chunhua and Bai, Xiang and Jin, Lianwen},
+  booktitle={Proceedings of the 30th ACM International Conference on Multimedia},
+  year={2022}
+}
+```
+
+## Checklist
+
+<!-- Here is a checklist illustrating a usual development workflow of a successful project, and also serves as an overview of this project's progress. The PIC (person in charge) or contributors of this project should check all the items that they believe have been finished, which will further be verified by codebase maintainers via a PR.
+
+OpenMMLab's maintainer will review the code to ensure the project's quality. Reaching the first milestone means that this project suffices the minimum requirement of being merged into 'projects/'. But this project is only eligible to become a part of the core package upon attaining the last milestone.
+
+Note that keeping this section up-to-date is crucial not only for this project's developers but the entire community, since there might be some other contributors joining this project and deciding their starting point from this list. It also helps maintainers accurately estimate time and effort on further code polishing, if needed.
+
+A project does not necessarily have to be finished in a single PR, but it's essential for the project to at least reach the first milestone in its very first PR. -->
+
+- [x] Milestone 1: PR-ready, and acceptable to be one of the `projects/`.
+
+  - [x] Finish the code
+
+    <!-- The code's design shall follow existing interfaces and convention. For example, each model component should be registered into `mmocr.registry.MODELS` and configurable via a config file. -->
+
+  - [x] Basic docstrings & proper citation
+
+    <!-- Each major object should contain a docstring, describing its functionality and arguments. If you have adapted the code from other open-source projects, don't forget to cite the source project in docstring and make sure your behavior is not against its license. Typically, we do not accept any code snippet under GPL license. [A Short Guide to Open Source Licenses](https://medium.com/nationwide-technology/a-short-guide-to-open-source-licenses-cf5b1c329edd) -->
+
+  - [x] Test-time correctness
+
+    <!-- If you are reproducing the result from a paper, make sure your model's inference-time performance matches that in the original paper. The weights usually could be obtained by simply renaming the keys in the official pre-trained weights. This test could be skipped though, if you are able to prove the training-time correctness and check the second milestone. -->
+
+  - [x] A full README
+
+    <!-- As this template does. -->
+
+- [x] Milestone 2: Indicates a successful model implementation.
+
+  - [x] Training-time correctness
+
+    <!-- If you are reproducing the result from a paper, checking this item means that you should have trained your model from scratch based on the original paper's specification and verified that the final result matches the report within a minor error range. -->
+
+- [x] Milestone 3: Good to be a part of our core package!
+
+  - [x] Type hints and docstrings
+
+    <!-- Ideally *all* the methods should have [type hints](https://www.pythontutorial.net/python-basics/python-type-hints/) and [docstrings](https://google.github.io/styleguide/pyguide.html#381-docstrings). [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/mmocr/utils/polygon_utils.py#L80-L96) -->
+
+  - [ ] Unit tests
+
+    <!-- Unit tests for each module are required. [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/tests/test_utils/test_polygon_utils.py#L97-L106) -->
+
+  - [ ] Code polishing
+
+    <!-- Refactor your code according to reviewer's comment. -->
+
+  - [ ] Metafile.yml
+
+    <!-- It will be parsed by MIM and Inferencer. [Example](https://github.com/open-mmlab/mmocr/blob/1.x/configs/textdet/dbnet/metafile.yml) -->
+
+- [ ] Move your modules into the core package following the codebase's file hierarchy structure.
+
+  <!-- In particular, you may have to refactor this README into a standard one. [Example](/configs/textdet/dbnet/README.md) -->
+
+- [ ] Refactor your modules into the core package following the codebase's file hierarchy structure.
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/ctw1500-spts.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/ctw1500-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..13931a1bb40e47bada964e401cc3d82e0879e8c0
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/ctw1500-spts.py
@@ -0,0 +1,17 @@
+ctw1500_textspotting_data_root = 'data/CTW1500'
+
+ctw1500_textspotting_train = dict(
+    type='AdelDataset',
+    data_root=ctw1500_textspotting_data_root,
+    ann_file='annotations/train_ctw1500_maxlen25_v2.json',
+    data_prefix=dict(img_path='ctwtrain_text_image/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+ctw1500_textspotting_test = dict(
+    type='AdelDataset',
+    data_root=ctw1500_textspotting_data_root,
+    ann_file='annotations/test_ctw1500_maxlen25.json',
+    data_prefix=dict(img_path='ctwtest_text_image/'),
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2013-spts.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2013-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..61f57d44780d9238b60fc5c54b0c2bef20744cd0
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2013-spts.py
@@ -0,0 +1,17 @@
+icdar2013_textspotting_data_root = 'spts-data/icdar2013'
+
+icdar2013_textspotting_train = dict(
+    type='AdelDataset',
+    data_root=icdar2013_textspotting_data_root,
+    ann_file='ic13_train.json',
+    data_prefix=dict(img_path='train_images/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+icdar2013_textspotting_test = dict(
+    type='AdelDataset',
+    data_root=icdar2013_textspotting_data_root,
+    data_prefix=dict(img_path='test_images/'),
+    ann_file='ic13_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2013.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2013.py
new file mode 100644
index 0000000000000000000000000000000000000000..e4fea49c84b0e13d37a2e31f9ffa10aff9256038
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2013.py
@@ -0,0 +1,15 @@
+icdar2013_textspotting_data_root = 'data/icdar2013'
+
+icdar2013_textspotting_train = dict(
+    type='OCRDataset',
+    data_root=icdar2013_textspotting_data_root,
+    ann_file='textspotting_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+icdar2013_textspotting_test = dict(
+    type='OCRDataset',
+    data_root=icdar2013_textspotting_data_root,
+    ann_file='textspotting_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2015-spts.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2015-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..df0139ad198fce0dc7166b580709bd45dabedd36
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2015-spts.py
@@ -0,0 +1,17 @@
+icdar2015_textspotting_data_root = 'spts-data/icdar2015'
+
+icdar2015_textspotting_train = dict(
+    type='AdelDataset',
+    data_root=icdar2015_textspotting_data_root,
+    ann_file='ic15_train.json',
+    data_prefix=dict(img_path='train_images/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+icdar2015_textspotting_test = dict(
+    type='AdelDataset',
+    data_root=icdar2015_textspotting_data_root,
+    data_prefix=dict(img_path='test_images/'),
+    ann_file='ic15_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2015.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..f71a721480814e60b4ab387f206b75e128ce136c
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/icdar2015.py
@@ -0,0 +1,14 @@
+icdar2015_textspotting_data_root = 'data/icdar2015'
+
+icdar2015_textspotting_train = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textspotting_data_root,
+    ann_file='textspotting_train.json',
+    pipeline=None)
+
+icdar2015_textspotting_test = dict(
+    type='OCRDataset',
+    data_root=icdar2015_textspotting_data_root,
+    ann_file='textspotting_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/mlt-spts.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/mlt-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..22d45039bce71e2b9c14e7ff41b082a2bc48ecdb
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/mlt-spts.py
@@ -0,0 +1,9 @@
+mlt_textspotting_data_root = 'spts-data/mlt2017'
+
+mlt_textspotting_train = dict(
+    type='AdelDataset',
+    data_root=mlt_textspotting_data_root,
+    ann_file='train.json',
+    data_prefix=dict(img_path='MLT_train_images/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/syntext1-spts.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/syntext1-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..d30df532cba19661a1c6614c6ee20df716bede23
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/syntext1-spts.py
@@ -0,0 +1,9 @@
+syntext1_textspotting_data_root = 'spts-data/syntext1'
+
+syntext1_textspotting_train = dict(
+    type='AdelDataset',
+    data_root=syntext1_textspotting_data_root,
+    ann_file='train.json',
+    data_prefix=dict(img_path='syntext_word_eng/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/syntext2-spts.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/syntext2-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..6fb06e30016a7bfbfc59aa1e72f33ee917471a42
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/syntext2-spts.py
@@ -0,0 +1,9 @@
+syntext2_textspotting_data_root = 'spts-data/syntext2'
+
+syntext2_textspotting_train = dict(
+    type='AdelDataset',
+    data_root=syntext2_textspotting_data_root,
+    ann_file='train.json',
+    data_prefix=dict(img_path='emcs_imgs/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/totaltext-spts.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/totaltext-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..37bea881c6a1aad6cec9c81a265ab6979327cfe4
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/totaltext-spts.py
@@ -0,0 +1,17 @@
+totaltext_textspotting_data_root = 'spts-data/totaltext'
+
+totaltext_textspotting_train = dict(
+    type='AdelDataset',
+    data_root=totaltext_textspotting_data_root,
+    ann_file='train.json',
+    data_prefix=dict(img_path='train_images/'),
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+totaltext_textspotting_test = dict(
+    type='AdelDataset',
+    data_root=totaltext_textspotting_data_root,
+    ann_file='test.json',
+    data_prefix=dict(img_path='test_images/'),
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/totaltext.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/totaltext.py
new file mode 100644
index 0000000000000000000000000000000000000000..ddc8f32f69d084facfed395b9bac8b55eb3ba450
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/datasets/totaltext.py
@@ -0,0 +1,15 @@
+totaltext_textspotting_data_root = 'data/totaltext'
+
+totaltext_textspotting_train = dict(
+    type='OCRDataset',
+    data_root=totaltext_textspotting_data_root,
+    ann_file='textspotting_train.json',
+    filter_cfg=dict(filter_empty_gt=True, min_size=32),
+    pipeline=None)
+
+totaltext_textspotting_test = dict(
+    type='OCRDataset',
+    data_root=totaltext_textspotting_data_root,
+    ann_file='textspotting_test.json',
+    test_mode=True,
+    pipeline=None)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/_base_/default_runtime.py b/mmocr-dev-1.x/projects/SPTS/config/_base_/default_runtime.py
new file mode 100644
index 0000000000000000000000000000000000000000..22657075aec853cafa50a853f9a386f5e7c95bca
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/_base_/default_runtime.py
@@ -0,0 +1,42 @@
+default_scope = 'mmocr'
+env_cfg = dict(
+    cudnn_benchmark=False,
+    mp_cfg=dict(mp_start_method='fork', opencv_num_threads=0),
+    dist_cfg=dict(backend='nccl'),
+)
+
+randomness = dict(seed=42)
+
+default_hooks = dict(
+    timer=dict(type='IterTimerHook'),
+    logger=dict(type='LoggerHook', interval=100),
+    param_scheduler=dict(type='ParamSchedulerHook'),
+    checkpoint=dict(type='CheckpointHook', interval=1, max_keep_ckpts=2),
+    sampler_seed=dict(type='DistSamplerSeedHook'),
+    sync_buffer=dict(type='SyncBuffersHook'),
+    visualization=dict(
+        type='VisualizationHook',
+        interval=1,
+        enable=False,
+        show=False,
+        draw_gt=False,
+        draw_pred=False),
+)
+
+# Logging
+log_level = 'INFO'
+log_processor = dict(type='LogProcessor', window_size=10, by_epoch=True)
+
+load_from = None
+resume = False
+
+# Evaluation
+val_evaluator = dict(type='E2EPointMetric')
+test_evaluator = val_evaluator
+
+# Visualization
+vis_backends = [dict(type='LocalVisBackend')]
+visualizer = dict(
+    type='TextSpottingLocalVisualizer',
+    name='visualizer',
+    vis_backends=vis_backends)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/spts/_base_spts_resnet50.py b/mmocr-dev-1.x/projects/SPTS/config/spts/_base_spts_resnet50.py
new file mode 100644
index 0000000000000000000000000000000000000000..b07bcee1ba30ab0f91245ceb8783a6486ef7ae5d
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/spts/_base_spts_resnet50.py
@@ -0,0 +1,115 @@
+custom_imports = dict(
+    imports=['projects.SPTS.spts'], allow_failed_imports=False)
+
+dictionary = dict(
+    type='SPTSDictionary',
+    dict_file='{{ fileDirname }}/../../dicts/spts.txt',
+    with_start=True,
+    with_end=True,
+    with_seq_end=True,
+    same_start_end=False,
+    with_padding=True,
+    with_unknown=True,
+    unknown_token=None,
+)
+
+num_bins = 1000
+
+model = dict(
+    type='SPTS',
+    data_preprocessor=dict(
+        type='TextDetDataPreprocessor',
+        # mean=[123.675, 116.28, 103.53][::-1],
+        # std=[1, 1, 1],
+        mean=[0, 0, 0],
+        std=[255, 255, 255],
+        bgr_to_rgb=True),
+    backbone=dict(
+        type='mmdet.ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(3, ),
+        frozen_stages=-1,
+        norm_cfg=dict(type='BN', requires_grad=False),  # freeze w & b
+        norm_eval=True,  # freeze running mean and var
+        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50'),
+        style='pytorch'),
+    encoder=dict(
+        type='SPTSEncoder',
+        d_backbone=2048,
+        d_model=256,
+    ),
+    decoder=dict(
+        type='SPTSDecoder',
+        dictionary=dictionary,
+        num_bins=num_bins,
+        d_model=256,
+        dropout=0.1,
+        max_num_text=60,
+        module_loss=dict(
+            type='SPTSModuleLoss', num_bins=num_bins, ignore_first_char=True),
+        postprocessor=dict(type='SPTSPostprocessor', num_bins=num_bins)))
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    # dict(type='Resize', scale=(1000, 1824), keep_ratio=True),
+    dict(
+        type='RescaleToShortSide',
+        short_side_lens=[1000],
+        long_side_bound=1824),
+    dict(
+        type='LoadOCRAnnotationsWithBezier',
+        with_bbox=True,
+        with_label=True,
+        with_text=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotationsWithBezier',
+        with_bbox=True,
+        with_label=True,
+        with_bezier=True,
+        with_text=True),
+    dict(type='Bezier2Polygon'),
+    dict(type='FixInvalidPolygon'),
+    dict(type='ConvertText', dictionary=dict(**dictionary, num_bins=0)),
+    dict(type='RemoveIgnored'),
+    dict(type='RandomCrop', min_side_ratio=0.5),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='RandomRotate',
+                max_angle=30,
+                pad_with_fixed_color=True,
+                use_canvas=True)
+        ],
+        prob=0.3),
+    dict(type='FixInvalidPolygon'),
+    dict(
+        type='RandomChoiceResize',
+        scales=[(640, 1600), (672, 1600), (704, 1600), (736, 1600),
+                (768, 1600), (800, 1600), (832, 1600), (864, 1600),
+                (896, 1600)],
+        keep_ratio=True),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='TorchVisionWrapper',
+                op='ColorJitter',
+                brightness=0.5,
+                contrast=0.5,
+                saturation=0.5,
+                hue=0.5)
+        ],
+        prob=0.5),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/projects/SPTS/config/spts/_base_spts_resnet50_mmocr.py b/mmocr-dev-1.x/projects/SPTS/config/spts/_base_spts_resnet50_mmocr.py
new file mode 100644
index 0000000000000000000000000000000000000000..f4242e36e697b6109a2449b1270d326a7a0d6e15
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/spts/_base_spts_resnet50_mmocr.py
@@ -0,0 +1,63 @@
+_base_ = '_base_spts_resnet50.py'
+
+test_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='RescaleToShortSide',
+        short_side_lens=[1000],
+        long_side_bound=1824),
+    dict(
+        type='LoadOCRAnnotations',
+        with_bbox=True,
+        with_label=True,
+        with_polygon=True,
+        with_text=True),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', color_type='color_ignore_orientation'),
+    dict(
+        type='LoadOCRAnnotations',
+        with_bbox=True,
+        with_label=True,
+        with_polygon=True,
+        with_text=True),
+    dict(type='FixInvalidPolygon'),
+    dict(type='RemoveIgnored'),
+    dict(type='RandomCrop', min_side_ratio=0.5),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='RandomRotate',
+                max_angle=30,
+                pad_with_fixed_color=True,
+                use_canvas=True)
+        ],
+        prob=0.3),
+    dict(type='FixInvalidPolygon'),
+    dict(
+        type='RandomChoiceResize',
+        scales=[(640, 1600), (672, 1600), (704, 1600), (736, 1600),
+                (768, 1600), (800, 1600), (832, 1600), (864, 1600),
+                (896, 1600)],
+        keep_ratio=True),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='TorchVisionWrapper',
+                op='ColorJitter',
+                brightness=0.5,
+                contrast=0.5,
+                saturation=0.5,
+                hue=0.5)
+        ],
+        prob=0.5),
+    dict(
+        type='PackTextDetInputs',
+        meta_keys=('img_path', 'ori_shape', 'img_shape', 'scale_factor'))
+]
diff --git a/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-150e_pretrain-spts.py b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-150e_pretrain-spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..42938f4354488f8d740a7f3b711a9e2eb1903b96
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-150e_pretrain-spts.py
@@ -0,0 +1,58 @@
+_base_ = [
+    '_base_spts_resnet50.py',
+    '../_base_/datasets/icdar2013-spts.py',
+    '../_base_/datasets/icdar2015-spts.py',
+    '../_base_/datasets/totaltext-spts.py',
+    '../_base_/datasets/syntext1-spts.py',
+    '../_base_/datasets/syntext2-spts.py',
+    '../_base_/datasets/mlt-spts.py',
+    '../_base_/default_runtime.py',
+]
+
+num_epochs = 150
+lr = 0.0005
+min_lr = 0.00001
+
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='AdamW', lr=lr, weight_decay=0.0001),
+    paramwise_cfg=dict(custom_keys={
+        'backbone': dict(lr_mult=0.1),
+    }))
+train_cfg = dict(
+    type='EpochBasedTrainLoop', max_epochs=num_epochs, val_interval=5)
+# learning policy
+param_scheduler = [
+    dict(type='LinearLR', end=5, start_factor=1 / 5, by_epoch=True),
+    dict(
+        type='LinearLR',
+        begin=5,
+        end=min(num_epochs,
+                int((lr - min_lr) / (lr / num_epochs)) + 5),
+        end_factor=min_lr / lr,
+        by_epoch=True),
+]
+
+# dataset settings
+train_list = [
+    _base_.icdar2013_textspotting_train,
+    _base_.icdar2015_textspotting_train,
+    _base_.mlt_textspotting_train,
+    _base_.totaltext_textspotting_train,
+    _base_.syntext1_textspotting_train,
+    _base_.syntext2_textspotting_train,
+]
+
+train_dataset = dict(
+    type='ConcatDataset', datasets=train_list, pipeline=_base_.train_pipeline)
+
+val_evaluator = None
+test_evaluator = None
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=8,
+    pin_memory=True,
+    persistent_workers=True,
+    sampler=dict(type='BatchAugSampler', shuffle=True, num_repeats=2),
+    dataset=train_dataset)
diff --git a/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_icdar2013.py b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_icdar2013.py
new file mode 100644
index 0000000000000000000000000000000000000000..223c1c2458ce036387d94ce4d3d2fd7662c39a4c
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_icdar2013.py
@@ -0,0 +1,87 @@
+_base_ = [
+    '_base_spts_resnet50_mmocr.py',
+    '../_base_/datasets/icdar2013.py',
+    '../_base_/default_runtime.py',
+]
+
+load_from = 'work_dirs/spts_resnet50_150e_pretrain-spts/epoch_150.pth'
+
+num_epochs = 200
+lr = 0.00001
+
+default_hooks = dict(
+    checkpoint=dict(
+        type='CheckpointHook',
+        save_best='generic/hmean',
+        rule='greater',
+        _delete_=True),
+    logger=dict(type='LoggerHook', interval=1))
+
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='AdamW', lr=lr, weight_decay=0.0001),
+    paramwise_cfg=dict(custom_keys={
+        'backbone': dict(lr_mult=0.1),
+    }))
+
+train_cfg = dict(
+    type='EpochBasedTrainLoop', max_epochs=num_epochs, val_interval=10)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+# dataset settings
+icdar2013_textspotting_train = _base_.icdar2013_textspotting_train
+icdar2013_textspotting_train.pipeline = _base_.train_pipeline
+icdar2013_textspotting_test = _base_.icdar2013_textspotting_test
+icdar2013_textspotting_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=8,
+    pin_memory=True,
+    persistent_workers=True,
+    sampler=dict(type='BatchAugSampler', shuffle=True, num_repeats=2),
+    dataset=icdar2013_textspotting_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    pin_memory=True,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2013_textspotting_test)
+
+test_dataloader = val_dataloader
+
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+val_evaluator = [
+    dict(
+        type='E2EPointMetric',
+        prefix='generic',
+        lexicon_path='data/icdar2013/lexicons/GenericVocabulary_new.txt',
+        pair_path='data/icdar2013/lexicons/'
+        'GenericVocabulary_pair_list.txt',
+        match_dist_thr=None),
+    dict(
+        type='E2EPointMetric',
+        prefix='weak',
+        lexicon_path='data/icdar2013/lexicons/'
+        'ch2_test_vocabulary_new.txt',
+        pair_path='data/icdar2013/lexicons/'
+        'ch2_test_vocabulary_pair_list.txt',
+        match_dist_thr=0.4),
+    dict(
+        type='E2EPointMetric',
+        prefix='strong',
+        lexicon_path='data/icdar2013/lexicons/'
+        'new_strong_lexicon/lexicons/',
+        lexicon_mapping=('(.*).jpg', r'new_voc_\1.txt'),
+        pair_path='data/icdar2013/lexicons/'
+        'new_strong_lexicon/pairs/',
+        pair_mapping=('(.*).jpg', r'pair_voc_\1.txt'),
+        match_dist_thr=0.4),
+]
+
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_icdar2015.py b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..9f811a805539dbab09172cbf44fc57474eb3eb57
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_icdar2015.py
@@ -0,0 +1,87 @@
+_base_ = [
+    '_base_spts_resnet50_mmocr.py',
+    '../_base_/datasets/icdar2015.py',
+    '../_base_/default_runtime.py',
+]
+
+load_from = 'work_dirs/spts_resnet50_150e_pretrain-spts/epoch_150.pth'
+
+num_epochs = 200
+lr = 0.00001
+
+default_hooks = dict(
+    checkpoint=dict(
+        type='CheckpointHook',
+        save_best='generic/hmean',
+        rule='greater',
+        _delete_=True),
+    logger=dict(type='LoggerHook', interval=10))
+
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='AdamW', lr=lr, weight_decay=0.0001),
+    paramwise_cfg=dict(custom_keys={
+        'backbone': dict(lr_mult=0.1),
+    }))
+
+train_cfg = dict(
+    type='EpochBasedTrainLoop', max_epochs=num_epochs, val_interval=10)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+# dataset settings
+icdar2015_textspotting_train = _base_.icdar2015_textspotting_train
+icdar2015_textspotting_train.pipeline = _base_.train_pipeline
+icdar2015_textspotting_test = _base_.icdar2015_textspotting_test
+icdar2015_textspotting_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=8,
+    pin_memory=True,
+    persistent_workers=True,
+    sampler=dict(type='BatchAugSampler', shuffle=True, num_repeats=2),
+    dataset=icdar2015_textspotting_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    pin_memory=True,
+    persistent_workers=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=icdar2015_textspotting_test)
+
+test_dataloader = val_dataloader
+
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+val_evaluator = [
+    dict(
+        type='E2EPointMetric',
+        prefix='generic',
+        lexicon_path='data/icdar2015/lexicons/GenericVocabulary_new.txt',
+        pair_path='data/icdar2015/lexicons/'
+        'GenericVocabulary_pair_list.txt',
+        match_dist_thr=None),
+    dict(
+        type='E2EPointMetric',
+        prefix='weak',
+        lexicon_path='data/icdar2015/lexicons/'
+        'ch4_test_vocabulary_new.txt',
+        pair_path='data/icdar2015/lexicons/'
+        'ch4_test_vocabulary_pair_list.txt',
+        match_dist_thr=0.4),
+    dict(
+        type='E2EPointMetric',
+        prefix='strong',
+        lexicon_path='data/icdar2015/lexicons/'
+        'new_strong_lexicon/lexicons/',
+        lexicon_mapping=('(.*).jpg', r'new_voc_\1.txt'),
+        pair_path='data/icdar2015/lexicons/'
+        'new_strong_lexicon/pairs/',
+        pair_mapping=('(.*).jpg', r'pair_voc_\1.txt'),
+        match_dist_thr=0.4),
+]
+
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_totaltext.py b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_totaltext.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed71f000bd3c1bc43041d5d7fa126ed066155ab1
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/config/spts/spts_resnet50_8xb8-200e_totaltext.py
@@ -0,0 +1,75 @@
+_base_ = [
+    '_base_spts_resnet50_mmocr.py',
+    '../_base_/datasets/totaltext.py',
+    '../_base_/default_runtime.py',
+]
+
+load_from = 'work_dirs/spts_resnet50_150e_pretrain-spts/epoch_150.pth'
+
+num_epochs = 200
+lr = 0.00001
+
+default_hooks = dict(
+    checkpoint=dict(
+        type='CheckpointHook',
+        save_best='none/hmean',
+        rule='greater',
+        _delete_=True),
+    logger=dict(type='LoggerHook', interval=10))
+
+optim_wrapper = dict(
+    type='OptimWrapper',
+    optimizer=dict(type='AdamW', lr=lr, weight_decay=0.0001),
+    paramwise_cfg=dict(custom_keys={
+        'backbone': dict(lr_mult=0.1),
+    }))
+
+train_cfg = dict(
+    type='EpochBasedTrainLoop', max_epochs=num_epochs, val_interval=10)
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+# dataset settings
+totaltext_textspotting_train = _base_.totaltext_textspotting_train
+totaltext_textspotting_train.pipeline = _base_.train_pipeline
+totaltext_textspotting_test = _base_.totaltext_textspotting_test
+totaltext_textspotting_test.pipeline = _base_.test_pipeline
+
+train_dataloader = dict(
+    batch_size=8,
+    num_workers=8,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='BatchAugSampler', shuffle=True, num_repeats=2),
+    dataset=totaltext_textspotting_train)
+
+val_dataloader = dict(
+    batch_size=1,
+    num_workers=4,
+    persistent_workers=True,
+    pin_memory=True,
+    sampler=dict(type='DefaultSampler', shuffle=False),
+    dataset=totaltext_textspotting_test)
+
+test_dataloader = val_dataloader
+
+val_cfg = dict(type='ValLoop')
+test_cfg = dict(type='TestLoop')
+
+val_evaluator = [
+    dict(
+        type='E2EPointMetric',
+        prefix='none',
+        word_spotting=True,
+        match_dist_thr=0.4),
+    dict(
+        type='E2EPointMetric',
+        prefix='full',
+        lexicon_path='data/totaltext/lexicons/weak_voc_new.txt',
+        pair_path='data/totaltext/lexicons/'
+        'weak_voc_pair_list.txt',
+        word_spotting=True,
+        match_dist_thr=0.4),
+]
+
+test_evaluator = val_evaluator
diff --git a/mmocr-dev-1.x/projects/SPTS/dicts/spts.txt b/mmocr-dev-1.x/projects/SPTS/dicts/spts.txt
new file mode 100644
index 0000000000000000000000000000000000000000..173d6c4a7ad83dcb6cdb3d177456d0b4d553c01c
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/dicts/spts.txt
@@ -0,0 +1,95 @@
+ 
+!
+"
+#
+$
+%
+&
+'
+(
+)
+*
++
+,
+-
+.
+/
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+:
+;
+<
+=
+>
+?
+@
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
+[
+\
+]
+^
+_
+`
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+{
+|
+}
+~
\ No newline at end of file
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/__init__.py b/mmocr-dev-1.x/projects/SPTS/spts/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..1952530c5624157ebaf1f83b999dee3257a71399
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/__init__.py
@@ -0,0 +1,5 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+# Copyright (c) OpenMMLab. All rights reserved.
+from .datasets import *  # NOQA
+from .metric import *  # NOQA
+from .model import *  # NOQA
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/datasets/__init__.py b/mmocr-dev-1.x/projects/SPTS/spts/datasets/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..9beaa869b7767bfdc5a6f03b8ba62975c7569442
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/datasets/__init__.py
@@ -0,0 +1,10 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .adel_dataset import AdelDataset
+from .transforms.spts_transforms import (Bezier2Polygon, ConvertText,
+                                         LoadOCRAnnotationsWithBezier,
+                                         Polygon2Bezier, RescaleToShortSide)
+
+__all__ = [
+    'AdelDataset', 'LoadOCRAnnotationsWithBezier', 'Bezier2Polygon',
+    'Polygon2Bezier', 'ConvertText', 'RescaleToShortSide'
+]
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/datasets/adel_dataset.py b/mmocr-dev-1.x/projects/SPTS/spts/datasets/adel_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..d1e3edda74f4e48d04b37b2d0139c98476c64a24
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/datasets/adel_dataset.py
@@ -0,0 +1,96 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from typing import List, Union
+
+import numpy as np
+from mmdet.datasets.coco import CocoDataset
+
+from mmocr.registry import DATASETS
+
+
+@DATASETS.register_module()
+class AdelDataset(CocoDataset):
+    """Dataset for text detection while ann_file in Adelai's coco format.
+
+    Args:
+        ann_file (str): Annotation file path. Defaults to ''.
+        metainfo (dict, optional): Meta information for dataset, such as class
+            information. Defaults to None.
+        data_root (str): The root directory for ``data_prefix`` and
+            ``ann_file``. Defaults to ''.
+        data_prefix (dict): Prefix for training data. Defaults to
+            dict(img_path='').
+        filter_cfg (dict, optional): Config for filter data. Defaults to None.
+        indices (int or Sequence[int], optional): Support using first few
+            data in annotation file to facilitate training/testing on a smaller
+            dataset. Defaults to None which means using all ``data_infos``.
+        serialize_data (bool, optional): Whether to hold memory using
+            serialized objects, when enabled, data loader workers can use
+            shared RAM from master process instead of making a copy. Defaults
+            to True.
+        pipeline (list, optional): Processing pipeline. Defaults to [].
+        test_mode (bool, optional): ``test_mode=True`` means in test phase.
+            Defaults to False.
+        lazy_init (bool, optional): Whether to load annotation during
+            instantiation. In some cases, such as visualization, only the meta
+            information of the dataset is needed, which is not necessary to
+            load annotation file. ``Basedataset`` can skip load annotations to
+            save time by set ``lazy_init=False``. Defaults to False.
+        max_refetch (int, optional): If ``Basedataset.prepare_data`` get a
+            None img. The maximum extra number of cycles to get a valid
+            image. Defaults to 1000.
+    """
+    METAINFO = {'classes': ('text', )}
+
+    def parse_data_info(self, raw_data_info: dict) -> Union[dict, List[dict]]:
+        """Parse raw annotation to target format.
+
+        Args:
+            raw_data_info (dict): Raw data information loaded from ``ann_file``
+
+        Returns:
+            Union[dict, List[dict]]: Parsed annotation.
+        """
+        img_info = raw_data_info['raw_img_info']
+        ann_info = raw_data_info['raw_ann_info']
+
+        data_info = {}
+
+        img_path = osp.join(self.data_prefix['img_path'],
+                            img_info['file_name'])
+        data_info['img_path'] = img_path
+        data_info['img_id'] = img_info['img_id']
+        data_info['height'] = img_info['height']
+        data_info['width'] = img_info['width']
+
+        instances = []
+        for ann in ann_info:
+            instance = {}
+
+            if ann.get('ignore', False):
+                continue
+            x1, y1, w, h = ann['bbox']
+            inter_w = max(0, min(x1 + w, img_info['width']) - max(x1, 0))
+            inter_h = max(0, min(y1 + h, img_info['height']) - max(y1, 0))
+            if inter_w * inter_h == 0:
+                continue
+            if ann['area'] <= 0 or w < 1 or h < 1:
+                continue
+            if ann['category_id'] not in self.cat_ids:
+                continue
+            bbox = [x1, y1, x1 + w, y1 + h]
+
+            if ann.get('iscrowd', False):
+                instance['ignore'] = 1
+            else:
+                instance['ignore'] = 0
+            instance['bbox'] = bbox
+            instance['bbox_label'] = self.cat2label[ann['category_id']]
+            # instance['polygon'] = bezier2poly(
+            #     np.array(ann['bezier_pts'], dtype=np.float32))
+            instance['beziers'] = np.array(ann['bezier_pts'], dtype=np.float32)
+            instance['text'] = ann['rec']
+
+            instances.append(instance)
+        data_info['instances'] = instances
+        return data_info
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/datasets/transforms/spts_transforms.py b/mmocr-dev-1.x/projects/SPTS/spts/datasets/transforms/spts_transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..91dd2289ddf5df1f5f52e58fb736386881aee6be
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/datasets/transforms/spts_transforms.py
@@ -0,0 +1,313 @@
+import random
+from typing import Dict
+
+import numpy as np
+from mmcv.transforms.base import BaseTransform
+
+from mmocr.datasets.transforms import LoadOCRAnnotations
+from mmocr.registry import TASK_UTILS, TRANSFORMS
+from mmocr.utils import bezier2poly, poly2bezier
+
+
+@TRANSFORMS.register_module()
+class LoadOCRAnnotationsWithBezier(LoadOCRAnnotations):
+    """Load and process the ``instances`` annotation provided by dataset.
+
+    The annotation format is as the following:
+
+    .. code-block:: python
+
+        {
+            'instances':
+            [
+                {
+                # List of 4 numbers representing the bounding box of the
+                # instance, in (x1, y1, x2, y2) order.
+                # used in text detection or text spotting tasks.
+                'bbox': [x1, y1, x2, y2],
+
+                # Label of instance, usually it's 0.
+                # used in text detection or text spotting tasks.
+                'bbox_label': 0,
+
+                # List of n numbers representing the polygon of the
+                # instance, in (xn, yn) order.
+                # used in text detection/ textspotter.
+                "polygon": [x1, y1, x2, y2, ... xn, yn],
+
+                # The flag indicating whether the instance should be ignored.
+                # used in text detection or text spotting tasks.
+                "ignore": False,
+
+                # The groundtruth of text.
+                # used in text recognition or text spotting tasks.
+                "text": 'tmp',
+                }
+            ]
+        }
+
+    After this module, the annotation has been changed to the format below:
+
+    .. code-block:: python
+
+        {
+            # In (x1, y1, x2, y2) order, float type. N is the number of bboxes
+            # in np.float32
+            'gt_bboxes': np.ndarray(N, 4)
+             # In np.int64 type.
+            'gt_bboxes_labels': np.ndarray(N, )
+            # In (x1, y1,..., xk, yk) order, float type.
+            # in list[np.float32]
+            'gt_polygons': list[np.ndarray(2k, )]
+             # In np.bool_ type.
+            'gt_ignored': np.ndarray(N, )
+             # In list[str]
+            'gt_texts': list[str]
+        }
+
+    Required Keys:
+
+    - instances
+
+      - bbox (optional)
+      - bbox_label (optional)
+      - polygon (optional)
+      - ignore (optional)
+      - text (optional)
+
+    Added Keys:
+
+    - gt_bboxes (np.float32)
+    - gt_bboxes_labels (np.int64)
+    - gt_polygons (list[np.float32])
+    - gt_ignored (np.bool_)
+    - gt_texts (list[str])
+
+    Args:
+        with_bbox (bool): Whether to parse and load the bbox annotation.
+            Defaults to False.
+        with_label (bool): Whether to parse and load the label annotation.
+            Defaults to False.
+        with_polygon (bool): Whether to parse and load the polygon annotation.
+            Defaults to False.
+        with_bezier (bool): Whether to parse and load the bezier annotation.
+            Defaults to False.
+        with_text (bool): Whether to parse and load the text annotation.
+            Defaults to False.
+    """
+
+    def __init__(self, with_bezier: bool = False, **kwargs) -> None:
+        super().__init__(**kwargs)
+        self.with_bezier = with_bezier
+
+    def _load_beziers(self, results: dict) -> None:
+        """Private function to load text annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+
+        Returns:
+            dict: The dict contains loaded text annotations.
+        """
+        gt_beziers = []
+        for instance in results['instances']:
+            gt_beziers.append(instance['beziers'])
+        results['gt_beziers'] = gt_beziers
+
+    def transform(self, results: dict) -> dict:
+        """Function to load multiple types annotations.
+
+        Args:
+            results (dict): Result dict from :obj:``OCRDataset``.
+
+        Returns:
+            dict: The dict contains loaded bounding box, label polygon and
+            text annotations.
+        """
+        results = super().transform(results)
+        if self.with_bezier:
+            self._load_beziers(results)
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(with_bbox={self.with_bbox}, '
+        repr_str += f'with_label={self.with_label}, '
+        repr_str += f'with_polygon={self.with_polygon}, '
+        repr_str += f'with_bezier={self.with_bezier}, '
+        repr_str += f'with_text={self.with_text}, '
+        repr_str += f"imdecode_backend='{self.imdecode_backend}', "
+
+        if self.file_client_args is not None:
+            repr_str += f'file_client_args={self.file_client_args})'
+        else:
+            repr_str += f'backend_args={self.backend_args})'
+
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class Bezier2Polygon(BaseTransform):
+    """Convert bezier curves to polygon.
+
+    Required Keys:
+
+    - gt_beziers
+
+    Modified Keys:
+
+    - gt_polygons
+    """
+
+    def transform(self, results: Dict) -> Dict:
+        """
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            Optional[dict]: The transformed data. If all the polygons are
+            unfixable, return None.
+        """
+        if results.get('gt_beziers', None) is not None:
+            results['gt_polygons'] = [
+                np.array(bezier2poly(poly), dtype=np.float32)
+                for poly in results['gt_beziers']
+            ]
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += '()'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class Polygon2Bezier(BaseTransform):
+    """Convert polygons to bezier curves.
+
+    Required Keys:
+
+    - gt_polygons
+
+    Added Keys:
+
+    - gt_beziers
+    """
+
+    def transform(self, results: Dict) -> Dict:
+        """
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            Optional[dict]: The transformed data. If all the polygons are
+            unfixable, return None.
+        """
+        if results.get('gt_polygons', None) is not None:
+            beziers = [poly2bezier(poly) for poly in results['gt_polygons']]
+            results['gt_beziers'] = np.array(beziers, dtype=np.float32)
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += '()'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class ConvertText(BaseTransform):
+
+    def __init__(self, dictionary):
+        if isinstance(dictionary, dict):
+            self.dictionary = TASK_UTILS.build(dictionary)
+        else:
+            raise TypeError(
+                'The type of dictionary should be `Dictionary` or dict, '
+                f'but got {type(dictionary)}')
+
+    def transform(self, results: Dict) -> Dict:
+        """
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            Optional[dict]: The transformed data. If all the polygons are
+            unfixable, return None.
+        """
+        new_gt_texts = []
+        for gt_text in results['gt_texts']:
+            if self.dictionary.end_idx in gt_text:
+                gt_text = gt_text[:gt_text.index(self.dictionary.end_idx)]
+            new_gt_texts.append(self.dictionary.idx2str(gt_text))
+        results['gt_texts'] = new_gt_texts
+        return results
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += '()'
+        return repr_str
+
+
+@TRANSFORMS.register_module()
+class RescaleToShortSide(BaseTransform):
+
+    def __init__(self,
+                 short_side_lens,
+                 long_side_bound,
+                 resize_type: str = 'Resize',
+                 **resize_kwargs):
+        self.short_side_lens = short_side_lens
+        self.long_side_bound = long_side_bound
+        self.resize_cfg = dict(type=resize_type, **resize_kwargs)
+
+        # create a empty Reisize object
+        self.resize_cfg.update(dict(scale=0))
+        self.resize = TRANSFORMS.build(self.resize_cfg)
+
+    def transform(self, results: Dict) -> Dict:
+        """Resize image.
+
+        Args:
+            results (dict): Result dict containing the data to transform.
+
+        Returns:
+            Optional[dict]: The transformed data. If all the polygons are
+            unfixable, return None.
+        """
+        short_len = random.choice(self.short_side_lens)
+        new_h, new_w = self.get_size_with_aspect_ratio(results['img_shape'],
+                                                       short_len,
+                                                       self.long_side_bound)
+        self.resize.scale = (new_w, new_h)
+        return self.resize(results)
+
+    def get_size_with_aspect_ratio(self, image_size, size, max_size=None):
+        h, w = image_size
+        if max_size is not None:
+            min_original_size = float(min((w, h)))
+            max_original_size = float(max((w, h)))
+            if max_original_size / min_original_size * size > max_size:
+                size = int(
+                    round(max_size * min_original_size / max_original_size))
+
+        if (w <= h and w == size) or (h <= w and h == size):
+            return (h, w)
+
+        if w < h:
+            ow = size
+            oh = int(size * h / w)
+        else:
+            oh = size
+            ow = int(size * w / h)
+
+        return (oh, ow)
+
+    def __repr__(self) -> str:
+        repr_str = self.__class__.__name__
+        repr_str += f'(short_side_lens={self.short_side_lens}, '
+        repr_str += f'long_side_bound={self.long_side_bound}, '
+        repr_str += f'resize_cfg={self.resize_cfg})'
+        return repr_str
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/metric/__init__.py b/mmocr-dev-1.x/projects/SPTS/spts/metric/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..987669297cf00fe12f3a4f79f88bef3e31ad0b11
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/metric/__init__.py
@@ -0,0 +1,4 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .e2e_point_metric import E2EPointMetric
+
+__all__ = ['E2EPointMetric']
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/metric/e2e_point_metric.py b/mmocr-dev-1.x/projects/SPTS/spts/metric/e2e_point_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..d219b4aa69b517fa737184a58c33eb78ed89a513
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/metric/e2e_point_metric.py
@@ -0,0 +1,315 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import glob
+import os.path as osp
+import re
+from typing import Dict, List, Optional, Sequence, Tuple
+
+import numpy as np
+import torch
+from mmengine.evaluator import BaseMetric
+from mmengine.logging import MMLogger
+from rapidfuzz.distance import Levenshtein
+from shapely.geometry import Point
+
+from mmocr.registry import METRICS
+
+# TODO: CTW1500 read pair
+
+
+@METRICS.register_module()
+class E2EPointMetric(BaseMetric):
+    """Point metric for textspotting. Proposed in SPTS.
+
+    Args:
+        text_score_thrs (dict): Best text score threshold searching
+            space. Defaults to dict(start=0.8, stop=1, step=0.01).
+        word_spotting (bool): Whether to work in word spotting mode. Defaults
+            to False.
+        lexicon_path (str, optional): Lexicon path for word spotting, which
+            points to a lexicon file or a directory. Defaults to None.
+        lexicon_mapping (tuple, optional): The rule to map test image name to
+            its corresponding lexicon file. Only effective when lexicon path
+            is a directory. Defaults to ('(.*).jpg', r'\1.txt').
+        pair_path (str, optional): Pair path for word spotting, which points
+            to a pair file or a directory. Defaults to None.
+        pair_mapping (tuple, optional): The rule to map test image name to
+            its corresponding pair file. Only effective when pair path is a
+            directory. Defaults to ('(.*).jpg', r'\1.txt').
+        match_dist_thr (float, optional): Matching distance threshold for
+            word spotting. Defaults to None.
+        collect_device (str): Device name used for collecting results from
+            different ranks during distributed training. Must be 'cpu' or
+            'gpu'. Defaults to 'cpu'.
+        prefix (str, optional): The prefix that will be added in the metric
+            names to disambiguate homonymous metrics of different evaluators.
+            If prefix is not provided in the argument, self.default_prefix
+            will be used instead. Defaults to None
+    """
+    default_prefix: Optional[str] = 'e2e_icdar'
+
+    def __init__(self,
+                 text_score_thrs: Dict = dict(start=0.8, stop=1, step=0.01),
+                 word_spotting: bool = False,
+                 lexicon_path: Optional[str] = None,
+                 lexicon_mapping: Tuple[str, str] = ('(.*).jpg', r'\1.txt'),
+                 pair_path: Optional[str] = None,
+                 pair_mapping: Tuple[str, str] = ('(.*).jpg', r'\1.txt'),
+                 match_dist_thr: Optional[float] = None,
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = None) -> None:
+        super().__init__(collect_device=collect_device, prefix=prefix)
+        self.text_score_thrs = np.arange(**text_score_thrs)
+        self.word_spotting = word_spotting
+        self.match_dist_thr = match_dist_thr
+        if lexicon_path:
+            self.lexicon_mapping = lexicon_mapping
+            self.pair_mapping = pair_mapping
+            self.lexicons = self._read_lexicon(lexicon_path)
+            self.pairs = self._read_pair(pair_path)
+
+    def _read_lexicon(self, lexicon_path: str) -> List[str]:
+        if lexicon_path.endswith('.txt'):
+            lexicon = open(lexicon_path, 'r').read().splitlines()
+            lexicon = [ele.strip() for ele in lexicon]
+        else:
+            lexicon = {}
+            for file in glob.glob(osp.join(lexicon_path, '*.txt')):
+                basename = osp.basename(file)
+                lexicon[basename] = self._read_lexicon(file)
+        return lexicon
+
+    def _read_pair(self, pair_path: str) -> Dict[str, str]:
+        pairs = {}
+        if pair_path.endswith('.txt'):
+            pair_lines = open(pair_path, 'r').read().splitlines()
+            for line in pair_lines:
+                line = line.strip()
+                word = line.split(' ')[0].upper()
+                word_gt = line[len(word) + 1:]
+                pairs[word] = word_gt
+        else:
+            for file in glob.glob(osp.join(pair_path, '*.txt')):
+                basename = osp.basename(file)
+                pairs[basename] = self._read_pair(file)
+        return pairs
+
+    def poly_center(self, poly_pts):
+        poly_pts = np.array(poly_pts).reshape(-1, 2)
+        return poly_pts.mean(0)
+
+    def process(self, data_batch: Sequence[Dict],
+                data_samples: Sequence[Dict]) -> None:
+        """Process one batch of data samples and predictions. The processed
+        results should be stored in ``self.results``, which will be used to
+        compute the metrics when all batches have been processed.
+
+        Args:
+            data_batch (Sequence[Dict]): A batch of data from dataloader.
+            data_samples (Sequence[Dict]): A batch of outputs from
+                the model.
+        """
+        for data_sample in data_samples:
+
+            pred_instances = data_sample.get('pred_instances')
+            pred_points = pred_instances.get('points')
+            text_scores = pred_instances.get('text_scores')
+            if isinstance(text_scores, torch.Tensor):
+                text_scores = text_scores.cpu().numpy()
+            text_scores = np.array(text_scores, dtype=np.float32)
+            pred_texts = pred_instances.get('texts')
+
+            gt_instances = data_sample.get('gt_instances')
+            gt_polys = gt_instances.get('polygons')
+            gt_ignore_flags = gt_instances.get('ignored')
+            gt_texts = gt_instances.get('texts')
+            if isinstance(gt_ignore_flags, torch.Tensor):
+                gt_ignore_flags = gt_ignore_flags.cpu().numpy()
+
+            gt_points = [self.poly_center(poly) for poly in gt_polys]
+            if self.word_spotting:
+                gt_ignore_flags, gt_texts = self._word_spotting_filter(
+                    gt_ignore_flags, gt_texts)
+
+            pred_ignore_flags = text_scores < self.text_score_thrs.min()
+            text_scores = text_scores[~pred_ignore_flags]
+            pred_texts = self._get_true_elements(pred_texts,
+                                                 ~pred_ignore_flags)
+            pred_points = self._get_true_elements(pred_points,
+                                                  ~pred_ignore_flags)
+
+            result = dict(
+                # reserved for image-level lexcions
+                gt_img_name=osp.basename(data_sample.get('img_path', '')),
+                text_scores=text_scores,
+                pred_points=pred_points,
+                gt_points=gt_points,
+                pred_texts=pred_texts,
+                gt_texts=gt_texts,
+                gt_ignore_flags=gt_ignore_flags)
+            self.results.append(result)
+
+    def _get_true_elements(self, array: List, flags: np.ndarray) -> List:
+        return [array[i] for i in self._true_indexes(flags)]
+
+    def compute_metrics(self, results: List[Dict]) -> Dict:
+        """Compute the metrics from processed results.
+
+        Args:
+            results (list[dict]): The processed results of each batch.
+
+        Returns:
+            dict: The computed metrics. The keys are the names of the metrics,
+            and the values are corresponding results.
+        """
+        logger: MMLogger = MMLogger.get_current_instance()
+
+        best_eval_results = dict(hmean=-1)
+
+        num_thres = len(self.text_score_thrs)
+        num_preds = np.zeros(
+            num_thres, dtype=int)  # the number of points actually predicted
+        num_tp = np.zeros(num_thres, dtype=int)  # number of true positives
+        num_gts = np.zeros(num_thres, dtype=int)  # number of valid gts
+
+        for result in results:
+            text_scores = result['text_scores']
+            pred_points = result['pred_points']
+            gt_points = result['gt_points']
+            gt_texts = result['gt_texts']
+            pred_texts = result['pred_texts']
+            gt_ignore_flags = result['gt_ignore_flags']
+            gt_img_name = result['gt_img_name']
+
+            # Correct the words with lexicon
+            pred_dist_flags = np.zeros(len(pred_texts), dtype=bool)
+            if hasattr(self, 'lexicons'):
+                for i, pred_text in enumerate(pred_texts):
+                    # If it's an image-level lexicon
+                    if isinstance(self.lexicons, dict):
+                        lexicon_name = self._map_img_name(
+                            gt_img_name, self.lexicon_mapping)
+                        pair_name = self._map_img_name(gt_img_name,
+                                                       self.pair_mapping)
+                        pred_texts[i], match_dist = self._match_word(
+                            pred_text, self.lexicons[lexicon_name],
+                            self.pairs[pair_name])
+                    else:
+                        pred_texts[i], match_dist = self._match_word(
+                            pred_text, self.lexicons, self.pairs)
+                    if (self.match_dist_thr
+                            and match_dist >= self.match_dist_thr):
+                        # won't even count this as a prediction
+                        pred_dist_flags[i] = True
+
+            # Filter out predictions by IoU threshold
+            for i, text_score_thr in enumerate(self.text_score_thrs):
+                pred_ignore_flags = pred_dist_flags | (
+                    text_scores < text_score_thr)
+                filtered_pred_texts = self._get_true_elements(
+                    pred_texts, ~pred_ignore_flags)
+                filtered_pred_points = self._get_true_elements(
+                    pred_points, ~pred_ignore_flags)
+                gt_matched = np.zeros(len(gt_texts), dtype=bool)
+                num_gt = len(gt_texts) - np.sum(gt_ignore_flags)
+                if num_gt == 0:
+                    continue
+                num_gts[i] += num_gt
+
+                for pred_text, pred_point in zip(filtered_pred_texts,
+                                                 filtered_pred_points):
+                    dists = [
+                        Point(pred_point).distance(Point(gt_point))
+                        for gt_point in gt_points
+                    ]
+                    min_idx = np.argmin(dists)
+                    if gt_texts[min_idx] == '###' or gt_ignore_flags[min_idx]:
+                        continue
+                    if not gt_matched[min_idx] and (
+                            pred_text.upper() == gt_texts[min_idx].upper()):
+                        gt_matched[min_idx] = True
+                        num_tp[i] += 1
+                    num_preds[i] += 1
+
+        for i, text_score_thr in enumerate(self.text_score_thrs):
+            if num_preds[i] == 0 or num_tp[i] == 0:
+                recall, precision, hmean = 0, 0, 0
+            else:
+                recall = num_tp[i] / num_gts[i]
+                precision = num_tp[i] / num_preds[i]
+                hmean = 2 * recall * precision / (recall + precision)
+            eval_results = dict(
+                precision=precision, recall=recall, hmean=hmean)
+            logger.info(f'text score threshold: {text_score_thr:.2f}, '
+                        f'recall: {eval_results["recall"]:.4f}, '
+                        f'precision: {eval_results["precision"]:.4f}, '
+                        f'hmean: {eval_results["hmean"]:.4f}\n')
+            if eval_results['hmean'] > best_eval_results['hmean']:
+                best_eval_results = eval_results
+        return best_eval_results
+
+    def _map_img_name(self, img_name: str, mapping: Tuple[str, str]) -> str:
+        """Map the image name to the another one based on mapping."""
+        return re.sub(mapping[0], mapping[1], img_name)
+
+    def _true_indexes(self, array: np.ndarray) -> np.ndarray:
+        """Get indexes of True elements from a 1D boolean array."""
+        return np.where(array)[0]
+
+    def _word_spotting_filter(self, gt_ignore_flags: np.ndarray,
+                              gt_texts: List[str]
+                              ) -> Tuple[np.ndarray, List[str]]:
+        """Filter out gt instances that cannot be in a valid dictionary, and do
+        some simple preprocessing to texts."""
+
+        for i in range(len(gt_texts)):
+            if gt_ignore_flags[i]:
+                continue
+            text = gt_texts[i]
+            if text[-2:] in ["'s", "'S"]:
+                text = text[:-2]
+            text = text.strip('-')
+            for char in "'!?.:,*\"()·[]/":
+                text = text.replace(char, ' ')
+            text = text.strip()
+            gt_ignore_flags[i] = not self._include_in_dict(text)
+            if not gt_ignore_flags[i]:
+                gt_texts[i] = text
+
+        return gt_ignore_flags, gt_texts
+
+    def _include_in_dict(self, text: str) -> bool:
+        """Check if the text could be in a valid dictionary."""
+        if len(text) != len(text.replace(' ', '')) or len(text) < 3:
+            return False
+        not_allowed = '×÷·'
+        valid_ranges = [(ord(u'a'), ord(u'z')), (ord(u'A'), ord(u'Z')),
+                        (ord(u'À'), ord(u'ƿ')), (ord(u'DŽ'), ord(u'ɿ')),
+                        (ord(u'Ά'), ord(u'Ͽ')), (ord(u'-'), ord(u'-'))]
+        for char in text:
+            code = ord(char)
+            if (not_allowed.find(char) != -1):
+                return False
+            valid = any(code >= r[0] and code <= r[1] for r in valid_ranges)
+            if not valid:
+                return False
+        return True
+
+    def _match_word(self,
+                    text: str,
+                    lexicons: List[str],
+                    pairs: Optional[Dict[str, str]] = None) -> Tuple[str, int]:
+        """Match the text with the lexicons and pairs."""
+        text = text.upper()
+        matched_word = ''
+        matched_dist = 100
+        for lexicon in lexicons:
+            lexicon = lexicon.upper()
+            norm_dist = Levenshtein.distance(text, lexicon)
+            norm_dist = Levenshtein.normalized_distance(text, lexicon)
+            if norm_dist < matched_dist:
+                matched_dist = norm_dist
+                if pairs:
+                    matched_word = pairs[lexicon]
+                else:
+                    matched_word = lexicon
+        return matched_word, matched_dist
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/__init__.py b/mmocr-dev-1.x/projects/SPTS/spts/model/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..133c38e45d9483847714e3e5153f8a5f5dc149d5
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/__init__.py
@@ -0,0 +1,12 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from .spts import SPTS
+from .spts_decoder import SPTSDecoder
+from .spts_dictionary import SPTSDictionary
+from .spts_encoder import SPTSEncoder
+from .spts_module_loss import SPTSModuleLoss
+from .spts_postprocessor import SPTSPostprocessor
+
+__all__ = [
+    'SPTSEncoder', 'SPTSDecoder', 'SPTSPostprocessor', 'SPTS',
+    'SPTSDictionary', 'SPTSModuleLoss'
+]
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/base_text_spotter.py b/mmocr-dev-1.x/projects/SPTS/spts/model/base_text_spotter.py
new file mode 100644
index 0000000000000000000000000000000000000000..635f31ee9aa4f5c3648ac3ff4e2dd9fe602a7152
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/base_text_spotter.py
@@ -0,0 +1,122 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from abc import ABCMeta, abstractmethod
+from typing import Union
+
+import torch
+from mmengine.model.base_model import BaseModel
+
+from mmocr.utils import (OptConfigType, OptMultiConfig, OptRecSampleList,
+                         RecForwardResults, RecSampleList)
+
+
+class BaseTextSpotter(BaseModel, metaclass=ABCMeta):
+    """Base class for text spotter.
+
+    TODO: Refine docstr & typehint
+
+    Args:
+        data_preprocessor (dict or ConfigDict, optional): The pre-process
+            config of :class:`BaseDataPreprocessor`.  it usually includes,
+            ``pad_size_divisor``, ``pad_value``, ``mean`` and ``std``.
+        init_cfg (dict or ConfigDict or List[dict], optional): the config
+            to control the initialization. Defaults to None.
+    """
+
+    def __init__(self,
+                 data_preprocessor: OptConfigType = None,
+                 init_cfg: OptMultiConfig = None):
+        super().__init__(
+            data_preprocessor=data_preprocessor, init_cfg=init_cfg)
+
+    @property
+    def with_backbone(self):
+        """bool: whether the recognizer has a backbone"""
+        return hasattr(self, 'backbone')
+
+    @property
+    def with_encoder(self):
+        """bool: whether the recognizer has an encoder"""
+        return hasattr(self, 'encoder')
+
+    @property
+    def with_preprocessor(self):
+        """bool: whether the recognizer has a preprocessor"""
+        return hasattr(self, 'preprocessor')
+
+    @property
+    def with_decoder(self):
+        """bool: whether the recognizer has a decoder"""
+        return hasattr(self, 'decoder')
+
+    @abstractmethod
+    def extract_feat(self, inputs: torch.Tensor) -> torch.Tensor:
+        """Extract features from images."""
+        pass
+
+    def forward(self,
+                inputs: torch.Tensor,
+                data_samples: OptRecSampleList = None,
+                mode: str = 'tensor',
+                **kwargs) -> RecForwardResults:
+        """The unified entry for a forward process in both training and test.
+
+        The method should accept three modes: "tensor", "predict" and "loss":
+
+        - "tensor": Forward the whole network and return tensor or tuple of
+        tensor without any post-processing, same as a common nn.Module.
+        - "predict": Forward and return the predictions, which are fully
+        processed to a list of :obj:`DetDataSample`.
+        - "loss": Forward and return a dict of losses according to the given
+        inputs and data samples.
+
+        Note that this method doesn't handle neither back propagation nor
+        optimizer updating, which are done in the :meth:`train_step`.
+
+        Args:
+            inputs (torch.Tensor): The input tensor with shape
+                (N, C, ...) in general.
+            data_samples (list[:obj:`DetDataSample`], optional): The
+                annotation data of every samples. Defaults to None.
+            mode (str): Return what kind of value. Defaults to 'tensor'.
+
+        Returns:
+            The return type depends on ``mode``.
+
+            - If ``mode="tensor"``, return a tensor or a tuple of tensor.
+            - If ``mode="predict"``, return a list of :obj:`DetDataSample`.
+            - If ``mode="loss"``, return a dict of tensor.
+        """
+        if mode == 'loss':
+            return self.loss(inputs, data_samples, **kwargs)
+        elif mode == 'predict':
+            return self.predict(inputs, data_samples, **kwargs)
+        elif mode == 'tensor':
+            return self._forward(inputs, data_samples, **kwargs)
+        else:
+            raise RuntimeError(f'Invalid mode "{mode}". '
+                               'Only supports loss, predict and tensor mode')
+
+    @abstractmethod
+    def loss(self, inputs: torch.Tensor, data_samples: RecSampleList,
+             **kwargs) -> Union[dict, tuple]:
+        """Calculate losses from a batch of inputs and data samples."""
+        pass
+
+    @abstractmethod
+    def predict(self, inputs: torch.Tensor, data_samples: RecSampleList,
+                **kwargs) -> RecSampleList:
+        """Predict results from a batch of inputs and data samples with post-
+        processing."""
+        pass
+
+    @abstractmethod
+    def _forward(self,
+                 inputs: torch.Tensor,
+                 data_samples: OptRecSampleList = None,
+                 **kwargs):
+        """Network forward process.
+
+        Usually includes backbone, neck and head forward without any post-
+        processing.
+        """
+        pass
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/encoder_decoder_text_spotter.py b/mmocr-dev-1.x/projects/SPTS/spts/model/encoder_decoder_text_spotter.py
new file mode 100644
index 0000000000000000000000000000000000000000..81ebd2ff294a2ccc86dfe5612f72c2c4b7724953
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/encoder_decoder_text_spotter.py
@@ -0,0 +1,130 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from typing import Dict
+
+import torch
+
+from mmocr.registry import MODELS
+from mmocr.utils.typing_utils import (ConfigType, InitConfigType,
+                                      OptConfigType, OptRecSampleList,
+                                      RecForwardResults, RecSampleList)
+from .base_text_spotter import BaseTextSpotter
+
+
+@MODELS.register_module()
+class EncoderDecoderTextSpotter(BaseTextSpotter):
+    """Base class for encode-decode text spotter.
+
+    Args:
+        preprocessor (dict, optional): Config dict for preprocessor. Defaults
+            to None.
+        backbone (dict, optional): Backbone config. Defaults to None.
+        encoder (dict, optional): Encoder config. If None, the output from
+            backbone will be directly fed into ``decoder``. Defaults to None.
+        decoder (dict, optional): Decoder config. Defaults to None.
+        data_preprocessor (dict, optional): Model preprocessing config
+            for processing the input image data. Keys allowed are
+            ``to_rgb``(bool), ``pad_size_divisor``(int), ``pad_value``(int or
+            float), ``mean``(int or float) and ``std``(int or float).
+            Preprcessing order: 1. to rgb; 2. normalization 3. pad.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 preprocessor: OptConfigType = None,
+                 backbone: OptConfigType = None,
+                 encoder: OptConfigType = None,
+                 decoder: OptConfigType = None,
+                 data_preprocessor: ConfigType = None,
+                 init_cfg: InitConfigType = None) -> None:
+
+        super().__init__(
+            init_cfg=init_cfg, data_preprocessor=data_preprocessor)
+
+        # Preprocessor module, e.g., TPS
+        if preprocessor is not None:
+            self.preprocessor = MODELS.build(preprocessor)
+
+        # Backbone
+        if backbone is not None:
+            self.backbone = MODELS.build(backbone)
+
+        # Encoder module
+        if encoder is not None:
+            self.encoder = MODELS.build(encoder)
+
+        # Decoder module
+        assert decoder is not None
+        self.decoder = MODELS.build(decoder)
+
+    def extract_feat(self, inputs: torch.Tensor) -> torch.Tensor:
+        """Directly extract features from the backbone."""
+        if self.with_preprocessor:
+            inputs = self.preprocessor(inputs)
+        if self.with_backbone:
+            inputs = self.backbone(inputs)
+        return inputs
+
+    def loss(self, inputs: torch.Tensor, data_samples: RecSampleList,
+             **kwargs) -> Dict:
+        """Calculate losses from a batch of inputs and data samples.
+        Args:
+            inputs (tensor): Input images of shape (N, C, H, W).
+                Typically these should be mean centered and std scaled.
+            data_samples (list[TextRecogDataSample]): A list of N
+                datasamples, containing meta information and gold
+                annotations for each of the images.
+
+        Returns:
+            dict[str, tensor]: A dictionary of loss components.
+        """
+        feat = self.extract_feat(inputs)
+        out_enc = None
+        if self.with_encoder:
+            out_enc = self.encoder(feat, data_samples)
+        return self.decoder.loss(feat, out_enc, data_samples)
+
+    def predict(self, inputs: torch.Tensor, data_samples: RecSampleList,
+                **kwargs) -> RecSampleList:
+        """Predict results from a batch of inputs and data samples with post-
+        processing.
+
+        Args:
+            inputs (torch.Tensor): Image input tensor.
+            data_samples (list[TextRecogDataSample]): A list of N datasamples,
+                containing meta information and gold annotations for each of
+                the images.
+
+        Returns:
+            list[TextRecogDataSample]:  A list of N datasamples of prediction
+            results. Results are stored in ``pred_text``.
+        """
+        feat = self.extract_feat(inputs)
+        out_enc = None
+        if self.with_encoder:
+            out_enc = self.encoder(feat, data_samples)
+        return self.decoder.predict(feat, out_enc, data_samples)
+
+    def _forward(self,
+                 inputs: torch.Tensor,
+                 data_samples: OptRecSampleList = None,
+                 **kwargs) -> RecForwardResults:
+        """Network forward process. Usually includes backbone, encoder and
+        decoder forward without any post-processing.
+
+         Args:
+            inputs (Tensor): Inputs with shape (N, C, H, W).
+            data_samples (list[TextRecogDataSample]): A list of N
+                datasamples, containing meta information and gold
+                annotations for each of the images.
+
+        Returns:
+            Tensor: A tuple of features from ``decoder`` forward.
+        """
+        feat = self.extract_feat(inputs)
+        out_enc = None
+        if self.with_encoder:
+            out_enc = self.encoder(feat, data_samples)
+        return self.decoder(feat, out_enc, data_samples)
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/position_embedding.py b/mmocr-dev-1.x/projects/SPTS/spts/model/position_embedding.py
new file mode 100644
index 0000000000000000000000000000000000000000..b2836993825e779f0e136024d193d1d1836fa0db
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/position_embedding.py
@@ -0,0 +1,55 @@
+import math
+
+import torch
+from torch import Tensor, nn
+
+
+class PositionEmbeddingSine(nn.Module):
+    """This is a more standard version of the position embedding, very similar
+    to the one used by the Attention is all you need paper, generalized to work
+    on images.
+
+    Adapted from https://github.com/shannanyinxiang/SPTS.
+    """
+
+    def __init__(self,
+                 num_pos_feats=64,
+                 temperature=10000,
+                 normalize=True,
+                 scale=None):
+        super().__init__()
+        self.num_pos_feats = num_pos_feats
+        self.temperature = temperature
+        self.normalize = normalize
+        if scale is not None and normalize is False:
+            raise ValueError('normalize should be True if scale is passed')
+        if scale is None:
+            scale = 2 * math.pi
+        self.scale = scale
+
+    def forward(self, mask: Tensor):
+        assert mask is not None
+        not_mask = ~mask
+        y_embed = not_mask.cumsum(1, dtype=torch.float32)
+        x_embed = not_mask.cumsum(2, dtype=torch.float32)
+        if self.normalize:
+            eps = 1e-6
+            y_embed = y_embed / (y_embed[:, -1:, :] + eps) * self.scale
+            x_embed = x_embed / (x_embed[:, :, -1:] + eps) * self.scale
+
+        dim_t = torch.arange(
+            self.num_pos_feats, dtype=torch.float32, device=mask.device)
+        dim_t = self.temperature**(2 *
+                                   torch.div(dim_t, 2, rounding_mode='floor') /
+                                   self.num_pos_feats)
+
+        pos_x = x_embed[:, :, :, None] / dim_t
+        pos_y = y_embed[:, :, :, None] / dim_t
+        pos_x = torch.stack(
+            (pos_x[:, :, :, 0::2].sin(), pos_x[:, :, :, 1::2].cos()),
+            dim=4).flatten(3)
+        pos_y = torch.stack(
+            (pos_y[:, :, :, 0::2].sin(), pos_y[:, :, :, 1::2].cos()),
+            dim=4).flatten(3)
+        pos = torch.cat((pos_y, pos_x), dim=3).permute(0, 3, 1, 2)
+        return pos
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/spts.py b/mmocr-dev-1.x/projects/SPTS/spts/model/spts.py
new file mode 100644
index 0000000000000000000000000000000000000000..68890dab7a18018671ff692687d6593c07d06217
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/spts.py
@@ -0,0 +1,8 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr.registry import MODELS
+from .encoder_decoder_text_spotter import EncoderDecoderTextSpotter
+
+
+@MODELS.register_module()
+class SPTS(EncoderDecoderTextSpotter):
+    """SPTS."""
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/spts_decoder.py b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_decoder.py
new file mode 100755
index 0000000000000000000000000000000000000000..374c65c649f07f573ca6fd080d0f2854fd216c37
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_decoder.py
@@ -0,0 +1,539 @@
+import copy
+from typing import Dict, List, Optional, Sequence, Union
+
+import torch
+import torch.nn.functional as F
+from torch import Tensor, nn
+
+from mmocr.models.common import Dictionary
+from mmocr.models.textrecog.decoders import BaseDecoder
+from mmocr.registry import MODELS
+from mmocr.utils.typing_utils import TextSpottingDataSample
+from .position_embedding import PositionEmbeddingSine
+
+
+@MODELS.register_module()
+class SPTSDecoder(BaseDecoder):
+    """SPTS Decoder.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        num_bins (int): Number of bins dividing the image. Defaults to 1000.
+        n_head (int): Number of parallel attention heads. Defaults to 8.
+        d_model (int): Dimension :math:`D_m` of the input from previous model.
+            Defaults to 256.
+        d_feedforward (int): Dimension of the feedforward layer.
+            Defaults to 1024.
+        normalize_before (bool): Whether to normalize the input before
+            encoding/decoding. Defaults to True.
+        max_num_text (int): Maximum number of text instances in a sample.
+            Defaults to 60.
+        module_loss (dict, optional): Config to build loss. Defaults to None.
+        postprocessor (dict, optional): Config to build postprocessor.
+            Defaults to None.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 num_bins: int = 1000,
+                 n_head: int = 8,
+                 d_model: int = 256,
+                 d_feedforward: int = 1024,
+                 normalize_before: bool = True,
+                 dropout: float = 0.1,
+                 max_num_text: int = 60,
+                 module_loss: Optional[Dict] = None,
+                 postprocessor: Optional[Dict] = None,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+
+        # TODO: fix hardcode
+        self.max_seq_len = (2 + 25) * max_num_text + 1
+        super().__init__(
+            dictionary=dictionary,
+            module_loss=module_loss,
+            postprocessor=postprocessor,
+            max_seq_len=self.max_seq_len,
+            init_cfg=init_cfg)
+        self.num_bins = num_bins
+
+        self.embedding = DecoderEmbeddings(self.dictionary.num_classes,
+                                           self.dictionary.padding_idx,
+                                           d_model, self.max_seq_len, dropout)
+        self.pos_embedding = PositionEmbeddingSine(d_model // 2)
+
+        self.vocab_embed = self._gen_vocab_embed(d_model, d_model,
+                                                 self.dictionary.num_classes,
+                                                 3)
+        encoder_layer = TransformerEncoderLayer(d_model, n_head, d_feedforward,
+                                                dropout, 'relu',
+                                                normalize_before)
+        encoder_norm = nn.LayerNorm(d_model) if normalize_before else None
+        num_encoder_layers = 6
+        self.encoder = TransformerEncoder(encoder_layer, num_encoder_layers,
+                                          encoder_norm)
+
+        decoder_layer = TransformerDecoderLayer(d_model, n_head, d_feedforward,
+                                                dropout, 'relu',
+                                                normalize_before)
+        decoder_norm = nn.LayerNorm(d_model)
+        num_decoder_layers = 6
+        self.decoder = TransformerDecoder(
+            decoder_layer,
+            num_decoder_layers,
+            decoder_norm,
+            return_intermediate=False)
+        self._reset_parameters()
+
+    def _reset_parameters(self):
+        for p in self.parameters():
+            if p.dim() > 1:
+                nn.init.xavier_uniform_(p)
+
+    def _gen_vocab_embed(self, input_dim: int, hidden_dim: int,
+                         output_dim: int, num_layers: int) -> nn.Module:
+        """Generate vocab embedding layer."""
+        net = nn.Sequential()
+        h = [hidden_dim] * (num_layers - 1)
+        for i, (n, k) in enumerate(zip([input_dim] + h, h + [output_dim])):
+            net.add_module(f'layer-{i}', nn.Linear(n, k))
+            if i < num_layers - 1:
+                net.add_module(f'relu-{i}', nn.ReLU())
+        return net
+
+    def forward_train(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextSpottingDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for training.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map from backbone of
+                shape :math:`(N, E, H, W)`. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+        """
+        mask, pos_embed, memory, query_embed = self._embed(
+            out_enc, data_samples)
+
+        padded_targets = [
+            data_sample.gt_instances.padded_indexes
+            for data_sample in data_samples
+        ]
+        padded_targets = torch.stack(padded_targets, dim=0).to(out_enc.device)
+        # we don't need eos here
+        tgt = self.embedding(padded_targets[:, :-1]).permute(1, 0, 2)
+        hs = self.decoder(
+            tgt,
+            memory,
+            memory_key_padding_mask=mask,
+            pos=pos_embed,
+            query_pos=query_embed[:len(tgt)],
+            tgt_mask=self._generate_square_subsequent_mask(len(tgt)).to(
+                tgt.device))
+        return self.vocab_embed(hs[-1].transpose(0, 1))
+
+    def forward_test(
+        self,
+        feat: Optional[torch.Tensor] = None,
+        out_enc: Optional[torch.Tensor] = None,
+        data_samples: Optional[Sequence[TextSpottingDataSample]] = None
+    ) -> torch.Tensor:
+        """Forward for testing.
+
+        Args:
+            feat (torch.Tensor, optional): The feature map from backbone of
+                shape :math:`(N, E, H, W)`. Defaults to None.
+            out_enc (torch.Tensor, optional): Encoder output. Defaults to None.
+            data_samples (Sequence[TextRecogDataSample]): Batch of
+                TextRecogDataSample, containing gt_text information. Defaults
+                to None.
+        """
+
+        batch_size = out_enc.shape[0]
+        mask, pos_embed, memory, query_embed = self._embed(
+            out_enc, data_samples)
+
+        max_probs = []
+        seq = torch.zeros(
+            batch_size, 1, dtype=torch.long).to(
+                out_enc.device) + self.dictionary.start_idx
+        for i in range(self.max_seq_len):
+            tgt = self.embedding(seq).permute(1, 0, 2)
+            hs = self.decoder(
+                tgt,
+                memory,
+                memory_key_padding_mask=mask,
+                pos=pos_embed,
+                query_pos=query_embed[:len(tgt)],
+                tgt_mask=self._generate_square_subsequent_mask(len(tgt)).to(
+                    tgt.device))  # bs, 1, E ?
+            out = self.vocab_embed(hs.transpose(1, 2)[-1, :, -1, :])
+            out = out.softmax(-1)
+
+            # bins chars unk eos seq_eos sos padding
+            if i % 27 == 0:  # coordinate or eos
+                out[:, self.num_bins:self.dictionary.seq_end_idx] = 0
+                out[:, self.dictionary.seq_end_idx + 1:] = 0
+            elif i % 27 == 1:  # coordinate
+                out[:, self.num_bins:] = 0
+            else:  # chars
+                out[:, :self.num_bins] = 0
+                out[:, self.dictionary.seq_end_idx:] = 0
+
+            max_prob, extra_seq = torch.max(out, dim=-1, keepdim=True)
+            # prob, extra_seq = out.topk(dim=-1, k=1)
+            # work for single batch only (original implementation)
+            # TODO: optimize for multi-batch
+            seq = torch.cat([seq, extra_seq], dim=-1)
+            max_probs.append(max_prob)
+            if extra_seq[0] == self.dictionary.seq_end_idx:
+                break
+
+        max_probs = torch.cat(max_probs, dim=-1)
+        max_probs = max_probs[:, :-1]  # remove seq_eos
+        seq = seq[:, 1:-1]  # remove start index and seq_eos
+        return max_probs, seq
+
+    def _embed(self, out_enc, data_samples):
+        bs, c, h, w = out_enc.shape
+        mask, pos_embed = self._gen_mask(out_enc, data_samples)
+        out_enc = out_enc.flatten(2).permute(2, 0, 1)
+        pos_embed = pos_embed.flatten(2).permute(2, 0, 1)
+        mask = mask.flatten(1)
+        # TODO move encoder to mmcv
+        memory = self.encoder(
+            out_enc, src_key_padding_mask=mask, pos=pos_embed.half())
+
+        query_embed = self.embedding.position_embeddings.weight.unsqueeze(1)
+        query_embed = query_embed.repeat(1, bs, 1)
+        return mask, pos_embed, memory, query_embed
+
+    def _generate_square_subsequent_mask(self, size):
+        r"""Generate a square mask for the sequence. The masked positions are
+            filled with float('-inf'). Unmasked positions are filled with
+            float(0.0).
+        """
+        mask = (torch.triu(torch.ones(size, size)) == 1).transpose(0, 1)
+        mask = mask.float().masked_fill(mask == 0, float('-inf')).masked_fill(
+            mask == 1, float(0.0))
+        return mask
+
+    def _gen_mask(self, out_enc, data_samples):
+        bs, _, h, w = out_enc.shape
+        masks = torch.ones((bs, h, w), dtype=bool, device=out_enc.device)
+        for i, data_sample in enumerate(data_samples):
+            img_h, img_w = data_sample.img_shape
+            masks[i, :img_h, :img_w] = False
+        masks = F.interpolate(
+            masks[None].float(), size=(h, w)).to(torch.bool)[0]
+        return masks, self.pos_embedding(masks)
+
+
+class DecoderEmbeddings(nn.Module):
+
+    def __init__(self, num_classes: int, padding_idx: int, hidden_dim,
+                 max_position_embeddings, dropout):
+        super(DecoderEmbeddings, self).__init__()
+        self.word_embeddings = nn.Embedding(
+            num_classes, hidden_dim, padding_idx=padding_idx)
+        self.position_embeddings = nn.Embedding(max_position_embeddings,
+                                                hidden_dim)
+
+        self.LayerNorm = torch.nn.LayerNorm(hidden_dim)
+        self.dropout = nn.Dropout(dropout)
+
+    def forward(self, x):
+        input_shape = x.size()
+        seq_length = input_shape[1]
+        device = x.device
+
+        position_ids = torch.arange(
+            seq_length, dtype=torch.long, device=device)
+        position_ids = position_ids.unsqueeze(0).expand(input_shape)
+
+        input_embeds = self.word_embeddings(x)
+        position_embeds = self.position_embeddings(position_ids)
+
+        embeddings = input_embeds + position_embeds
+        embeddings = self.LayerNorm(embeddings)
+        embeddings = self.dropout(embeddings)
+
+        return embeddings
+
+
+class TransformerEncoder(nn.Module):
+
+    def __init__(self, encoder_layer, num_layers, norm=None):
+        super(TransformerEncoder, self).__init__()
+        self.layers = _get_clones(encoder_layer, num_layers)
+        self.num_layers = num_layers
+        self.norm = norm
+
+    def forward(self,
+                src,
+                mask: Optional[Tensor] = None,
+                src_key_padding_mask: Optional[Tensor] = None,
+                pos: Optional[Tensor] = None):
+        output = src
+
+        for layer in self.layers:
+            output = layer(
+                output,
+                src_mask=mask,
+                src_key_padding_mask=src_key_padding_mask,
+                pos=pos)
+
+        if self.norm is not None:
+            output = self.norm(output)
+
+        return output
+
+
+class TransformerDecoder(nn.Module):
+
+    def __init__(self,
+                 decoder_layer,
+                 num_layers,
+                 norm=None,
+                 return_intermediate=False):
+        super(TransformerDecoder, self).__init__()
+        self.layers = _get_clones(decoder_layer, num_layers)
+        self.num_layers = num_layers
+        self.norm = norm
+        self.return_intermediate = return_intermediate
+
+    def forward(self,
+                tgt,
+                memory,
+                tgt_mask: Optional[Tensor] = None,
+                memory_mask: Optional[Tensor] = None,
+                tgt_key_padding_mask: Optional[Tensor] = None,
+                memory_key_padding_mask: Optional[Tensor] = None,
+                pos: Optional[Tensor] = None,
+                query_pos: Optional[Tensor] = None):
+        output = tgt
+
+        for layer in self.layers:
+            output = layer(
+                output,
+                memory,
+                tgt_mask=tgt_mask,
+                memory_mask=memory_mask,
+                tgt_key_padding_mask=tgt_key_padding_mask,
+                memory_key_padding_mask=memory_key_padding_mask,
+                pos=pos,
+                query_pos=query_pos)
+
+        if self.norm is not None:
+            # nn.LayerNorm(d_model)
+            output = self.norm(output)
+
+        return output.unsqueeze(0)
+
+
+class TransformerEncoderLayer(nn.Module):
+
+    def __init__(self,
+                 d_model,
+                 nhead,
+                 dim_feedforward=2048,
+                 dropout=0.1,
+                 activation='relu',
+                 normalize_before=False):
+        super(TransformerEncoderLayer, self).__init__()
+        self.self_attn = nn.MultiheadAttention(d_model, nhead, dropout=dropout)
+        # Implementation of Feedforward model
+        self.linear1 = nn.Linear(d_model, dim_feedforward)
+        self.dropout = nn.Dropout(dropout)
+        self.linear2 = nn.Linear(dim_feedforward, d_model)
+
+        self.norm1 = nn.LayerNorm(d_model)
+        self.norm2 = nn.LayerNorm(d_model)
+        self.dropout1 = nn.Dropout(dropout)
+        self.dropout2 = nn.Dropout(dropout)
+
+        self.activation = _get_activation_fn(activation)
+        self.normalize_before = normalize_before
+
+    def with_pos_embed(self, tensor, pos: Optional[Tensor]):
+        return tensor if pos is None else tensor + pos
+
+    def forward_post(self,
+                     src,
+                     src_mask: Optional[Tensor] = None,
+                     src_key_padding_mask: Optional[Tensor] = None,
+                     pos: Optional[Tensor] = None):
+        q = k = self.with_pos_embed(src, pos)
+        src2 = self.self_attn(
+            q,
+            k,
+            value=src,
+            attn_mask=src_mask,
+            key_padding_mask=src_key_padding_mask)[0]
+        src = src + self.dropout1(src2)
+        src = self.norm1(src)
+        src2 = self.linear2(self.dropout(self.activation(self.linear1(src))))
+        src = src + self.dropout2(src2)
+        src = self.norm2(src)
+        return src
+
+    def forward_pre(self,
+                    src,
+                    src_mask: Optional[Tensor] = None,
+                    src_key_padding_mask: Optional[Tensor] = None,
+                    pos: Optional[Tensor] = None):
+        src2 = self.norm1(src)
+        q = k = self.with_pos_embed(src2, pos)
+        src2 = self.self_attn(
+            q,
+            k,
+            value=src2,
+            attn_mask=src_mask,
+            key_padding_mask=src_key_padding_mask)[0]
+        src = src + self.dropout1(src2)
+        src2 = self.norm2(src)
+        src2 = self.linear2(self.dropout(self.activation(self.linear1(src2))))
+        src = src + self.dropout2(src2)
+        return src
+
+    def forward(self,
+                src,
+                src_mask: Optional[Tensor] = None,
+                src_key_padding_mask: Optional[Tensor] = None,
+                pos: Optional[Tensor] = None):
+        if self.normalize_before:
+            return self.forward_pre(src, src_mask, src_key_padding_mask, pos)
+        return self.forward_post(src, src_mask, src_key_padding_mask, pos)
+
+
+class TransformerDecoderLayer(nn.Module):
+
+    def __init__(self,
+                 d_model,
+                 nhead,
+                 dim_feedforward=2048,
+                 dropout=0.1,
+                 activation='relu',
+                 normalize_before=False):
+        super(TransformerDecoderLayer, self).__init__()
+        self.self_attn = nn.MultiheadAttention(d_model, nhead, dropout=dropout)
+        self.multihead_attn = nn.MultiheadAttention(
+            d_model, nhead, dropout=dropout)
+        # Implementation of Feedforward model
+        self.linear1 = nn.Linear(d_model, dim_feedforward)
+        self.dropout = nn.Dropout(dropout)
+        self.linear2 = nn.Linear(dim_feedforward, d_model)
+
+        self.norm1 = nn.LayerNorm(d_model)
+        self.norm2 = nn.LayerNorm(d_model)
+        self.norm3 = nn.LayerNorm(d_model)
+        self.dropout1 = nn.Dropout(dropout)
+        self.dropout2 = nn.Dropout(dropout)
+        self.dropout3 = nn.Dropout(dropout)
+
+        self.activation = _get_activation_fn(activation)
+        self.normalize_before = normalize_before
+
+    def with_pos_embed(self, tensor, pos: Optional[Tensor]):
+        return tensor if pos is None else tensor + pos
+
+    def forward_post(self,
+                     tgt,
+                     memory,
+                     tgt_mask: Optional[Tensor] = None,
+                     memory_mask: Optional[Tensor] = None,
+                     tgt_key_padding_mask: Optional[Tensor] = None,
+                     memory_key_padding_mask: Optional[Tensor] = None,
+                     pos: Optional[Tensor] = None,
+                     query_pos: Optional[Tensor] = None):
+        q = k = self.with_pos_embed(tgt, query_pos)
+        tgt2 = self.self_attn(
+            q,
+            k,
+            value=tgt,
+            attn_mask=tgt_mask,
+            key_padding_mask=tgt_key_padding_mask)[0]
+        tgt = tgt + self.dropout1(tgt2)
+        tgt = self.norm1(tgt)
+        tgt2 = self.multihead_attn(
+            query=self.with_pos_embed(tgt, query_pos),
+            key=self.with_pos_embed(memory, pos),
+            value=memory,
+            attn_mask=memory_mask,
+            key_padding_mask=memory_key_padding_mask)[0]
+        tgt = tgt + self.dropout2(tgt2)
+        tgt = self.norm2(tgt)
+        tgt2 = self.linear2(self.dropout(self.activation(self.linear1(tgt))))
+        tgt = tgt + self.dropout3(tgt2)
+        tgt = self.norm3(tgt)
+        return tgt
+
+    def forward_pre(self,
+                    tgt,
+                    memory,
+                    tgt_mask: Optional[Tensor] = None,
+                    memory_mask: Optional[Tensor] = None,
+                    tgt_key_padding_mask: Optional[Tensor] = None,
+                    memory_key_padding_mask: Optional[Tensor] = None,
+                    pos: Optional[Tensor] = None,
+                    query_pos: Optional[Tensor] = None):
+        tgt2 = self.norm1(tgt)
+        q = k = self.with_pos_embed(tgt2, query_pos)
+        tgt2 = self.self_attn(
+            q,
+            k,
+            value=tgt2,
+            attn_mask=tgt_mask,
+            key_padding_mask=tgt_key_padding_mask)[0]
+        tgt = tgt + self.dropout1(tgt2)
+        tgt2 = self.norm2(tgt)
+        tgt2 = self.multihead_attn(
+            query=self.with_pos_embed(tgt2, query_pos),
+            key=self.with_pos_embed(memory, pos),
+            value=memory,
+            attn_mask=memory_mask,
+            key_padding_mask=memory_key_padding_mask)[0]
+        tgt = tgt + self.dropout2(tgt2)
+        tgt2 = self.norm3(tgt)
+        tgt2 = self.linear2(self.dropout(self.activation(self.linear1(tgt2))))
+        tgt = tgt + self.dropout3(tgt2)
+        return tgt
+
+    def forward(self,
+                tgt,
+                memory,
+                tgt_mask: Optional[Tensor] = None,
+                memory_mask: Optional[Tensor] = None,
+                tgt_key_padding_mask: Optional[Tensor] = None,
+                memory_key_padding_mask: Optional[Tensor] = None,
+                pos: Optional[Tensor] = None,
+                query_pos: Optional[Tensor] = None):
+        if self.normalize_before:
+            return self.forward_pre(tgt, memory, tgt_mask, memory_mask,
+                                    tgt_key_padding_mask,
+                                    memory_key_padding_mask, pos, query_pos)
+        return self.forward_post(tgt, memory, tgt_mask, memory_mask,
+                                 tgt_key_padding_mask, memory_key_padding_mask,
+                                 pos, query_pos)
+
+
+def _get_clones(module, N):
+    return nn.ModuleList([copy.deepcopy(module) for i in range(N)])
+
+
+def _get_activation_fn(activation):
+    """Return an activation function given a string."""
+    if activation == 'relu':
+        return F.relu
+    if activation == 'gelu':
+        return F.gelu
+    if activation == 'glu':
+        return F.glu
+    raise RuntimeError(F'activation should be relu/gelu, not {activation}.')
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/spts_dictionary.py b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_dictionary.py
new file mode 100644
index 0000000000000000000000000000000000000000..f204a71a5e06bd23b9c49b9ad33eda502f5b4dc5
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_dictionary.py
@@ -0,0 +1,162 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Sequence
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.registry import TASK_UTILS
+
+
+@TASK_UTILS.register_module()
+class SPTSDictionary(Dictionary):
+    """The class generates a dictionary for recognition. It pre-defines four
+    special tokens: ``start_token``, ``end_token``, ``pad_token``, and
+    ``unknown_token``, which will be sequentially placed at the end of the
+    dictionary when their corresponding flags are True.
+
+    Args:
+        dict_file (str): The path of Character dict file which a single
+            character must occupies a line.
+        num_bins (int): Number of bins dividing the image, which is used to
+            shift the character indexes. Defaults to 1000.
+        with_start (bool): The flag to control whether to include the start
+            token. Defaults to False.
+        with_end (bool): The flag to control whether to include the end token.
+            Defaults to False.
+        with_seq end (bool): The flag to control whether to include the
+            sequence end token. Defaults to False.
+        same_start_end (bool): The flag to control whether the start token and
+            end token are the same. It only works when both ``with_start`` and
+            ``with_end`` are True. Defaults to False.
+        with_padding (bool):The padding token may represent more than a
+            padding. It can also represent tokens like the blank token in CTC
+            or the background token in SegOCR. Defaults to False.
+        with_unknown (bool): The flag to control whether to include the
+            unknown token. Defaults to False.
+        start_token (str): The start token as a string. Defaults to '<BOS>'.
+        end_token (str): The end token as a string. Defaults to '<EOS>'.
+        seq_end_token (str): The sequence end token as a string. Defaults to
+            '<SEQEOS>'.
+        start_end_token (str): The start/end token as a string. if start and
+            end is the same. Defaults to '<BOS/EOS>'.
+        padding_token (str): The padding token as a string.
+            Defaults to '<PAD>'.
+        unknown_token (str, optional): The unknown token as a string. If it's
+            set to None and ``with_unknown`` is True, the unknown token will be
+            skipped when converting string to index. Defaults to '<UKN>'.
+    """
+
+    def __init__(
+        self,
+        dict_file: str,
+        num_bins: int = 1000,
+        with_start: bool = False,
+        with_end: bool = False,
+        with_seq_end: bool = False,
+        same_start_end: bool = False,
+        with_padding: bool = False,
+        with_unknown: bool = False,
+        start_token: str = '<BOS>',
+        end_token: str = '<EOS>',
+        seq_end_token: str = '<SEQEOS>',
+        start_end_token: str = '<BOS/EOS>',
+        padding_token: str = '<PAD>',
+        unknown_token: str = '<UKN>',
+    ) -> None:
+        self.with_seq_end = with_seq_end
+        self.seq_end_token = seq_end_token
+
+        super().__init__(
+            dict_file=dict_file,
+            with_start=with_start,
+            with_end=with_end,
+            same_start_end=same_start_end,
+            with_padding=with_padding,
+            with_unknown=with_unknown,
+            start_token=start_token,
+            end_token=end_token,
+            start_end_token=start_end_token,
+            padding_token=padding_token,
+            unknown_token=unknown_token)
+
+        self.num_bins = num_bins
+        self._shift_idx()
+
+    @property
+    def num_classes(self) -> int:
+        """int: Number of output classes. Special tokens are counted.
+        """
+        return len(self._dict) + self.num_bins
+
+    def _shift_idx(self):
+        idx_terms = [
+            'start_idx', 'end_idx', 'unknown_idx', 'seq_end_idx', 'padding_idx'
+        ]
+        for term in idx_terms:
+            value = getattr(self, term)
+            if value:
+                setattr(self, term, value + self.num_bins)
+        for char in self._dict:
+            self._char2idx[char] += self.num_bins
+
+    def _update_dict(self):
+        """Update the dict with tokens according to parameters."""
+        # BOS/EOS
+        self.start_idx = None
+        self.end_idx = None
+        # unknown
+        self.unknown_idx = None
+        # TODO: Check if this line in Dictionary is correct and
+        # work as expected
+        # if self.with_unknown and self.unknown_token is not None:
+        if self.with_unknown:
+            self._dict.append(self.unknown_token)
+            self.unknown_idx = len(self._dict) - 1
+
+        if self.with_start and self.with_end and self.same_start_end:
+            self._dict.append(self.start_end_token)
+            self.start_idx = len(self._dict) - 1
+            self.end_idx = self.start_idx
+            if self.with_seq_end:
+                self._dict.append(self.seq_end_token)
+                self.seq_end_idx = len(self.dict) - 1
+        else:
+            if self.with_end:
+                self._dict.append(self.end_token)
+                self.end_idx = len(self._dict) - 1
+            if self.with_seq_end:
+                self._dict.append(self.seq_end_token)
+                self.seq_end_idx = len(self.dict) - 1
+            if self.with_start:
+                self._dict.append(self.start_token)
+                self.start_idx = len(self._dict) - 1
+
+        # padding
+        self.padding_idx = None
+        if self.with_padding:
+            self._dict.append(self.padding_token)
+            self.padding_idx = len(self._dict) - 1
+
+        # update char2idx
+        self._char2idx = {}
+        for idx, char in enumerate(self._dict):
+            self._char2idx[char] = idx
+
+    def idx2str(self, index: Sequence[int]) -> str:
+        """Convert a list of index to string.
+
+        Args:
+            index (list[int]): The list of indexes to convert to string.
+
+        Return:
+            str: The converted string.
+        """
+        assert isinstance(index, (list, tuple))
+        string = ''
+        for i in index:
+            assert i < self.num_classes, f'Index: {i} out of range! Index ' \
+                                        f'must be less than {self.num_classes}'
+            # TODO: find its difference from ignore_chars
+            # in TextRecogPostprocessor
+            shifted_i = i - self.num_bins
+            if self._dict[shifted_i] is not None:
+                string += self._dict[shifted_i]
+        return string
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/spts_encoder.py b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..ced078d0eb1f6d227eb0e7a2926937ac0cf963b4
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_encoder.py
@@ -0,0 +1,44 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Union
+
+import torch.nn as nn
+from torch import Tensor
+
+from mmocr.models.textrecog.encoders import BaseEncoder
+from mmocr.registry import MODELS
+from mmocr.structures import TextSpottingDataSample
+
+
+@MODELS.register_module()
+class SPTSEncoder(BaseEncoder):
+    """SPTS Encoder.
+
+    Args:
+        d_backbone (int): Backbone output dimension.
+        d_model (int): Model output dimension.
+        init_cfg (dict or list[dict], optional): Initialization configs.
+            Defaults to None.
+    """
+
+    def __init__(self,
+                 d_backbone: int = 2048,
+                 d_model: int = 256,
+                 init_cfg: Optional[Union[Dict, List[Dict]]] = None) -> None:
+        super().__init__(init_cfg=init_cfg)
+        self.input_proj = nn.Conv2d(d_backbone, d_model, kernel_size=1)
+
+    def forward(self,
+                feat: Tensor,
+                data_samples: List[TextSpottingDataSample] = None) -> Tensor:
+        """Forward propagation of encoder.
+
+        Args:
+            feat (Tensor): Feature tensor of shape :math:`(N, D_m, H, W)`.
+            data_samples (list[TextSpottingDataSample]): Batch of
+                TextSpottingDataSample.
+                Defaults to None.
+
+        Returns:
+            Tensor: A tensor of shape :math:`(N, T, D_m)`.
+        """
+        return self.input_proj(feat[0])
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/spts_module_loss.py b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..2847e14cc6739f85b4dd065098993da99cb564ae
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_module_loss.py
@@ -0,0 +1,232 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import random
+from typing import Dict, Sequence, Union
+
+import numpy as np
+import torch
+from torch import nn
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.module_losses import CEModuleLoss
+from mmocr.registry import MODELS
+from mmocr.structures import TextSpottingDataSample
+
+
+@MODELS.register_module()
+class SPTSModuleLoss(CEModuleLoss):
+    """Implementation of loss module for SPTS with CrossEntropy loss.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        num_bins (int): Number of bins dividing the image. Defaults to 1000.
+        seq_eos_coef (float): The loss weight coefficient of seq_eos token.
+            Defaults to 0.01.
+        max_seq_len (int): Maximum sequence length. In SPTS, a sequence
+            encodes all the text instances in a sample. Defaults to 40, which
+            will be overridden by SPTSDecoder.
+        max_text_len (int): Maximum length for each text instance in a
+            sequence. Defaults to 25.
+        letter_case (str): There are three options to alter the letter cases
+            of gt texts:
+            - unchanged: Do not change gt texts.
+            - upper: Convert gt texts into uppercase characters.
+            - lower: Convert gt texts into lowercase characters.
+            Usually, it only works for English characters. Defaults to
+            'unchanged'.
+        pad_with (str): The padding strategy for ``gt_text.padded_indexes``.
+            Defaults to 'auto'. Options are:
+            - 'auto': Use dictionary.padding_idx to pad gt texts, or
+              dictionary.end_idx if dictionary.padding_idx
+              is None.
+            - 'padding': Always use dictionary.padding_idx to pad gt texts.
+            - 'end': Always use dictionary.end_idx to pad gt texts.
+            - 'none': Do not pad gt texts.
+        ignore_char (int or str): Specifies a target value that is
+            ignored and does not contribute to the input gradient.
+            ignore_char can be int or str. If int, it is the index of
+            the ignored char. If str, it is the character to ignore.
+            Apart from single characters, each item can be one of the
+            following reversed keywords: 'padding', 'start', 'end',
+            and 'unknown', which refer to their corresponding special
+            tokens in the dictionary. It will not ignore any special
+            tokens when ignore_char == -1 or 'none'. Defaults to 'padding'.
+        flatten (bool): Whether to flatten the output and target before
+            computing CE loss. Defaults to False.
+        reduction (str): Specifies the reduction to apply to the output,
+            should be one of the following: ('none', 'mean', 'sum'). Defaults
+            to 'none'.
+        ignore_first_char (bool): Whether to ignore the first token in target (
+            usually the start token). Defaults to ``True``.
+        flatten (bool): Whether to flatten the vectors for loss computation.
+            Defaults to False.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dict, Dictionary],
+                 num_bins: int,
+                 seq_eos_coef: float = 0.01,
+                 max_seq_len: int = 40,
+                 max_text_len: int = 25,
+                 letter_case: str = 'unchanged',
+                 pad_with: str = 'auto',
+                 ignore_char: Union[int, str] = 'padding',
+                 flatten: bool = False,
+                 reduction: str = 'none',
+                 ignore_first_char: bool = True):
+        super().__init__(dictionary, max_seq_len, letter_case, pad_with,
+                         ignore_char, flatten, reduction, ignore_first_char)
+        # TODO: fix hardcode
+        self.max_text_len = max_text_len
+        self.max_num_text = (self.max_seq_len - 1) // (2 + max_text_len)
+        self.num_bins = num_bins
+
+        weights = torch.ones(self.dictionary.num_classes, dtype=torch.float32)
+        weights[self.dictionary.seq_end_idx] = seq_eos_coef
+        weights.requires_grad_ = False
+        self.loss_ce = nn.CrossEntropyLoss(
+            ignore_index=self.ignore_index,
+            reduction=reduction,
+            weight=weights)
+
+    def get_targets(
+        self, data_samples: Sequence[TextSpottingDataSample]
+    ) -> Sequence[TextSpottingDataSample]:
+        """Target generator.
+
+        Args:
+            data_samples (list[TextSpottingDataSample]): It usually includes
+                ``gt_instances`` information.
+
+        Returns:
+            list[TextSpottingDataSample]: Updated data_samples. Two keys will
+            be added to data_sample:
+
+            - indexes (torch.LongTensor): Character indexes representing gt
+              texts. All special tokens are excluded, except for UKN.
+            - padded_indexes (torch.LongTensor): Character indexes
+              representing gt texts with BOS and EOS if applicable, following
+              several padding indexes until the length reaches ``max_seq_len``.
+              In particular, if ``pad_with='none'``, no padding will be
+              applied.
+        """
+
+        batch_max_len = 0
+
+        for data_sample in data_samples:
+            if data_sample.get('have_target', False):
+                continue
+
+            if len(data_sample.gt_instances) > self.max_num_text:
+                keep = random.sample(
+                    range(len(data_sample.gt_instances)), self.max_num_text)
+                data_sample.gt_instances = data_sample.gt_instances[keep]
+
+            gt_instances = data_sample.gt_instances
+
+            if len(gt_instances) > 0:
+                center_pts = []
+                # Slightly different from the original implementation
+                # which gets the center points from bezier curves
+                # for bezier_pt in gt_instances.beziers:
+                #     bezier_pt = bezier_pt.reshape(8, 2)
+                #     mid_pt1 = sample_bezier_curve(
+                #         bezier_pt[:4], mid_point=True)
+                #     mid_pt2 = sample_bezier_curve(
+                #         bezier_pt[4:], mid_point=True)
+                #     center_pt = (mid_pt1 + mid_pt2) / 2
+                for polygon in gt_instances.polygons:
+                    center_pt = polygon.reshape(-1, 2).mean(0)
+                    center_pts.append(center_pt)
+                center_pts = np.vstack(center_pts)
+                center_pts /= data_sample.img_shape[::-1]
+                center_pts = torch.from_numpy(center_pts).type(torch.float32)
+            else:
+                center_pts = torch.ones(0).reshape(-1, 2).type(torch.float32)
+
+            center_pts = (center_pts * self.num_bins).floor().type(torch.long)
+            center_pts = torch.clamp(center_pts, min=0, max=self.num_bins - 1)
+
+            gt_indexes = []
+            for text in gt_instances.texts:
+                if self.letter_case in ['upper', 'lower']:
+                    text = getattr(text, self.letter_case)()
+
+                indexes = self.dictionary.str2idx(text)
+                indexes_tensor = torch.zeros(
+                    self.max_text_len,
+                    dtype=torch.long) + self.dictionary.end_idx
+                max_len = min(self.max_text_len - 1, len(indexes))
+                indexes_tensor[:max_len] = torch.LongTensor(indexes)[:max_len]
+                indexes_tensor = indexes_tensor
+                gt_indexes.append(indexes_tensor)
+
+            if len(gt_indexes) == 0:
+                gt_indexes = torch.ones(0).reshape(-1, self.max_text_len)
+            else:
+                gt_indexes = torch.vstack(gt_indexes)
+            gt_indexes = torch.cat([center_pts, gt_indexes], dim=-1)
+            gt_indexes = gt_indexes.flatten()
+
+            if self.dictionary.start_idx is not None:
+                gt_indexes = torch.cat([
+                    torch.LongTensor([self.dictionary.start_idx]), gt_indexes
+                ])
+            if self.dictionary.seq_end_idx is not None:
+                gt_indexes = torch.cat([
+                    gt_indexes,
+                    torch.LongTensor([self.dictionary.seq_end_idx])
+                ])
+
+            batch_max_len = max(batch_max_len, len(gt_indexes))
+
+            gt_instances.set_metainfo(dict(indexes=gt_indexes))
+
+        # Here we have to have the second pass as we need to know the max
+        # length of the batch to pad the indexes in order to save memory
+        for data_sample in data_samples:
+
+            if data_sample.get('have_target', False):
+                continue
+
+            indexes = data_sample.gt_instances.indexes
+
+            padded_indexes = (
+                torch.zeros(batch_max_len, dtype=torch.long) +
+                self.dictionary.padding_idx)
+            padded_indexes[:len(indexes)] = indexes
+            data_sample.gt_instances.set_metainfo(
+                dict(padded_indexes=padded_indexes))
+            data_sample.set_metainfo(dict(have_target=True))
+
+        return data_samples
+
+    def forward(self, outputs: torch.Tensor,
+                data_samples: Sequence[TextSpottingDataSample]) -> Dict:
+        """
+        Args:
+            outputs (Tensor): A raw logit tensor of shape :math:`(N, T, C)`.
+            data_samples (list[TextSpottingDataSample]): List of
+                ``TextSpottingDataSample`` which are processed by
+                ``get_targets``.
+
+        Returns:
+            dict: A loss dict with the key ``loss_ce``.
+        """
+        targets = list()
+        for data_sample in data_samples:
+            targets.append(data_sample.gt_instances.padded_indexes)
+        targets = torch.stack(targets, dim=0).long()
+        if self.ignore_first_char:
+            targets = targets[:, 1:].contiguous()
+            # outputs = outputs[:, :-1, :].contiguous()
+        if self.flatten:
+            outputs = outputs.view(-1, outputs.size(-1))
+            targets = targets.view(-1)
+        else:
+            outputs = outputs.permute(0, 2, 1).contiguous()
+
+        loss_ce = self.loss_ce(outputs, targets.to(outputs.device))
+        losses = dict(loss_ce=loss_ce)
+
+        return losses
diff --git a/mmocr-dev-1.x/projects/SPTS/spts/model/spts_postprocessor.py b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..249c9694f95d90eb816208e8042febc8d176a781
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/spts/model/spts_postprocessor.py
@@ -0,0 +1,173 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from typing import Dict, List, Optional, Sequence, Tuple, Union
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models import Dictionary
+from mmocr.models.textrecog.postprocessors import BaseTextRecogPostprocessor
+from mmocr.registry import MODELS
+from mmocr.structures import TextSpottingDataSample
+from mmocr.utils import rescale_polygons
+
+
+@MODELS.register_module()
+class SPTSPostprocessor(BaseTextRecogPostprocessor):
+    """PostProcessor for SPTS.
+
+    Args:
+        dictionary (dict or :obj:`Dictionary`): The config for `Dictionary` or
+            the instance of `Dictionary`.
+        num_bins (int): Number of bins dividing the image. Defaults to 1000.
+        rescale_fields (list[str], optional): The bbox/polygon field names to
+            be rescaled. If None, no rescaling will be performed.
+        max_seq_len (int): Maximum sequence length. In SPTS, a sequence
+            encodes all the text instances in a sample. Defaults to 40, which
+            will be overridden by SPTSDecoder.
+        ignore_chars (list[str]): A list of characters to be ignored from the
+            final results. Postprocessor will skip over these characters when
+            converting raw indexes to characters. Apart from single characters,
+            each item can be one of the following reversed keywords: 'padding',
+            'end' and 'unknown', which refer to their corresponding special
+            tokens in the dictionary.
+    """
+
+    def __init__(self,
+                 dictionary: Union[Dictionary, Dict],
+                 num_bins: int,
+                 rescale_fields: Optional[Sequence[str]] = ['points'],
+                 max_seq_len: int = 40,
+                 ignore_chars: Sequence[str] = ['padding'],
+                 **kwargs) -> None:
+        assert rescale_fields is None or isinstance(rescale_fields, list)
+        self.num_bins = num_bins
+        self.rescale_fields = rescale_fields
+        super().__init__(
+            dictionary=dictionary,
+            num_bins=num_bins,
+            max_seq_len=max_seq_len,
+            ignore_chars=ignore_chars)
+
+    def get_single_prediction(
+        self,
+        max_probs: torch.Tensor,
+        seq: torch.Tensor,
+        data_sample: Optional[TextSpottingDataSample] = None,
+    ) -> Tuple[List[List[int]], List[List[float]], List[Tuple[float]],
+               List[Tuple[float]]]:
+        """Convert the output probabilities of a single image to character
+        indexes, character scores, points and point scores.
+
+        Args:
+            max_probs (torch.Tensor): Character probabilities with shape
+                :math:`(T)`.
+            seq (torch.Tensor): Sequence indexes with shape
+                :math:`(T)`.
+
+            data_sample (TextSpottingDataSample, optional): Datasample of an
+                image. Defaults to None.
+
+        Returns:
+            tuple(list[list[int]], list[list[float]], list[(float, float)],
+            list(float, float)): character indexes, character scores, points
+            and point scores. Each has len of max_seq_len.
+        """
+        h, w = data_sample.img_shape
+        # the if is not a must since the softmaxed are masked out in decoder
+        # if len(max_probs) % 27 != 0:
+        #     max_probs = max_probs[:-len(max_probs) % 27]
+        #     seq = seq[:-len(seq) % 27]
+        # max_value, max_idx = torch.max(max_probs, -1)
+        max_probs = max_probs.reshape(-1, 27)
+        seq = seq.reshape(-1, 27)
+
+        indexes, text_scores, points, pt_scores = [], [], [], []
+        output_indexes = seq.cpu().detach().numpy().tolist()
+        output_scores = max_probs.cpu().detach().numpy().tolist()
+        for output_index, output_score in zip(output_indexes, output_scores):
+            # work for multi-batch
+            # if output_index[0] == self.dictionary.seq_end_idx +self.num_bins:
+            #     break
+            point_x = output_index[0] / self.num_bins * w
+            point_y = output_index[1] / self.num_bins * h
+            points.append((point_x, point_y))
+            pt_scores.append(
+                np.mean([
+                    output_score[0],
+                    output_score[1],
+                ]).item())
+            indexes.append([])
+            char_scores = []
+            for char_index, char_score in zip(output_index[2:],
+                                              output_score[2:]):
+                # the first num_bins indexes are for points
+                if char_index in self.ignore_indexes:
+                    continue
+                if char_index == self.dictionary.end_idx:
+                    break
+                indexes[-1].append(char_index)
+                char_scores.append(char_score)
+            text_scores.append(np.mean(char_scores).item())
+        return indexes, text_scores, points, pt_scores
+
+    def __call__(
+        self, output: Tuple[torch.Tensor, torch.Tensor],
+        data_samples: Sequence[TextSpottingDataSample]
+    ) -> Sequence[TextSpottingDataSample]:
+        """Convert outputs to strings and scores.
+
+        Args:
+            output (tuple(Tensor, Tensor)): A tuple of (probs, seq), each has
+                the shape of :math:`(T,)`.
+            data_samples (list[TextSpottingDataSample]): The list of
+                TextSpottingDataSample.
+
+        Returns:
+            list(TextSpottingDataSample): The list of TextSpottingDataSample.
+        """
+        max_probs, seq = output
+        batch_size = max_probs.size(0)
+
+        for idx in range(batch_size):
+            (char_idxs, text_scores, points,
+             pt_scores) = self.get_single_prediction(max_probs[idx, :],
+                                                     seq[idx, :],
+                                                     data_samples[idx])
+            texts = []
+            scores = []
+            for index, pt_score in zip(char_idxs, pt_scores):
+                text = self.dictionary.idx2str(index)
+                texts.append(text)
+                # the "scores" field only accepts a float number
+                scores.append(np.mean(pt_score).item())
+            pred_instances = InstanceData()
+            pred_instances.texts = texts
+            pred_instances.scores = scores
+            pred_instances.text_scores = text_scores
+            pred_instances.points = points
+            data_samples[idx].pred_instances = pred_instances
+            pred_instances = self.rescale(data_samples[idx],
+                                          data_samples[idx].scale_factor)
+        return data_samples
+
+    def rescale(self, results: TextSpottingDataSample,
+                scale_factor: Sequence[int]) -> TextSpottingDataSample:
+        """Rescale results in ``results.pred_instances`` according to
+        ``scale_factor``, whose keys are defined in ``self.rescale_fields``.
+        Usually used to rescale bboxes and/or polygons.
+
+        Args:
+            results (TextSpottingDataSample): The post-processed prediction
+                results.
+            scale_factor (tuple(int)): (w_scale, h_scale)
+
+        Returns:
+            TextDetDataSample: Prediction results with rescaled results.
+        """
+        scale_factor = np.asarray(scale_factor)
+        for key in self.rescale_fields:
+            # TODO: this util may need an alias or to be renamed
+            results.pred_instances[key] = rescale_polygons(
+                results.pred_instances[key], scale_factor, mode='div')
+        return results
diff --git a/mmocr-dev-1.x/projects/SPTS/tools/ckpt_adapter.py b/mmocr-dev-1.x/projects/SPTS/tools/ckpt_adapter.py
new file mode 100644
index 0000000000000000000000000000000000000000..154d29631bdaf383f5d77a4bf10c0f200fbd2c79
--- /dev/null
+++ b/mmocr-dev-1.x/projects/SPTS/tools/ckpt_adapter.py
@@ -0,0 +1,45 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+
+import torch
+
+prefix_mapping = {
+    'backbone.0.body': 'backbone',
+    'input_proj': 'encoder.input_proj',
+    'transformer': 'decoder',
+    'vocab_embed.layers.': 'decoder.vocab_embed.layer-'
+}
+
+
+def adapt(model_path, save_path):
+    model = torch.load(model_path)
+    model_dict = model['model']
+    new_model_dict = model_dict.copy()
+
+    for k, v in model_dict.items():
+        for old_prefix, new_prefix in prefix_mapping.items():
+            if k.startswith(old_prefix):
+                new_k = k.replace(old_prefix, new_prefix)
+                new_model_dict[new_k] = v
+                del new_model_dict[k]
+                break
+    model['state_dict'] = new_model_dict
+    del model['model']
+    torch.save(model, save_path)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Adapt the pretrained checkpoints from SPTS official '
+        'implementation.')
+    parser.add_argument(
+        'model_path', type=str, help='Path to the source model')
+    parser.add_argument(
+        'out_path', type=str, help='Path to the converted model')
+    args = parser.parse_args()
+    return args
+
+
+if __name__ == '__main__':
+    args = parse_args()
+    adapt(args.model_path, args.out_path)
diff --git a/mmocr-dev-1.x/projects/example_project/README.md b/mmocr-dev-1.x/projects/example_project/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..c2a22bfb27ceb25f39968591db875cf6ad868eb1
--- /dev/null
+++ b/mmocr-dev-1.x/projects/example_project/README.md
@@ -0,0 +1,143 @@
+# Dummy ResNet Wrapper
+
+> This is a README template for community `projects/`.
+
+> All the fields in this README are **mandatory** for others to understand what you have achieved in this implementation. If you still feel unclear about the requirements, please read our [contribution guide](https://mmocr.readthedocs.io/en/dev-1.x/notes/contribution_guide.html), [projects FAQ](../faq.md), or approach us in [Discussions](https://github.com/open-mmlab/mmocr/discussions).
+
+## Description
+
+> Share any information you would like others to know. For example:
+>
+> Author: @xxx.
+>
+> This is an implementation of \[XXX\].
+
+This project implements a dummy ResNet wrapper, which literally does nothing new but prints "hello world" during initialization.
+
+## Usage
+
+> For a typical model, this section should contain the commands for training and testing. You are also suggested to dump your environment specification to env.yml by `conda env export > env.yml`.
+
+### Prerequisites
+
+- Python 3.7
+- PyTorch 1.6 or higher
+- [MIM](https://github.com/open-mmlab/mim)
+- [MMOCR](https://github.com/open-mmlab/mmocr)
+
+All the commands below rely on the correct configuration of `PYTHONPATH`, which should point to the project's directory so that Python can locate the module files. In `example_project/` root directory, run the following line to add the current directory to `PYTHONPATH`:
+
+```shell
+# Linux
+export PYTHONPATH=`pwd`:$PYTHONPATH
+# Windows PowerShell
+$env:PYTHONPATH=Get-Location
+```
+
+### Training commands
+
+In MMOCR's root directory, run the following command to train the model:
+
+```bash
+mim train mmocr configs/dbnet_dummy-resnet_fpnc_1200e_icdar2015.py --work-dir work_dirs/dummy_mae/
+```
+
+To train on multiple GPUs, e.g. 8 GPUs, run the following command:
+
+```bash
+mim train mmocr configs/dbnet_dummy-resnet_fpnc_1200e_icdar2015.py --work-dir work_dirs/dummy_mae/ --launcher pytorch --gpus 8
+```
+
+### Testing commands
+
+In MMOCR's root directory, run the following command to test the model:
+
+```bash
+mim test mmocr configs/dbnet_dummy-resnet_fpnc_1200e_icdar2015.py --work-dir work_dirs/dummy_mae/ --checkpoint ${CHECKPOINT_PATH}
+```
+
+## Results
+
+> List the results as usually done in other model's README. [Example](https://github.com/open-mmlab/mmocr/blob/1.x/configs/textdet/dbnet/README.md#results-and-models)
+>
+> You should claim whether this is based on the pre-trained weights, which are converted from the official release; or it's a reproduced result obtained from retraining the model in this project.
+
+|                              Method                               |  Backbone   | Pretrained Model |  Training set   |    Test set    | #epoch | Test size | Precision | Recall | Hmean  |         Download         |
+| :---------------------------------------------------------------: | :---------: | :--------------: | :-------------: | :------------: | :----: | :-------: | :-------: | :----: | :----: | :----------------------: |
+| [DBNet_dummy](configs/dbnet_dummy-resnet_fpnc_1200e_icdar2015.py) | DummyResNet |        -         | ICDAR2015 Train | ICDAR2015 Test |  1200  |    736    |  0.8853   | 0.7583 | 0.8169 | [model](<>) \| [log](<>) |
+
+## Citation
+
+> You may remove this section if not applicable.
+
+```bibtex
+@software{MMOCR_Contributors_OpenMMLab_Text_Detection_2020,
+author = {{MMOCR Contributors}},
+license = {Apache-2.0},
+month = {8},
+title = {{OpenMMLab Text Detection, Recognition and Understanding Toolbox}},
+url = {https://github.com/open-mmlab/mmocr},
+version = {0.3.0},
+year = {2020}
+}
+```
+
+## Checklist
+
+Here is a checklist illustrating a usual development workflow of a successful project, and also serves as an overview of this project's progress.
+
+> The PIC (person in charge) or contributors of this project should check all the items that they believe have been finished, which will further be verified by codebase maintainers via a PR.
+>
+> OpenMMLab's maintainer will review the code to ensure the project's quality. Reaching the first milestone means that this project suffices the minimum requirement of being merged into 'projects/'. But this project is only eligible to become a part of the core package upon attaining the last milestone.
+>
+> Note that keeping this section up-to-date is crucial not only for this project's developers but the entire community, since there might be some other contributors joining this project and deciding their starting point from this list. It also helps maintainers accurately estimate time and effort on further code polishing, if needed.
+>
+> A project does not necessarily have to be finished in a single PR, but it's essential for the project to at least reach the first milestone in its very first PR.
+
+- [ ] Milestone 1: PR-ready, and acceptable to be one of the `projects/`.
+
+  - [ ] Finish the code
+
+    > The code's design shall follow existing interfaces and convention. For example, each model component should be registered into `mmocr.registry.MODELS` and configurable via a config file.
+
+  - [ ] Basic docstrings & proper citation
+
+    > Each major object should contain a docstring, describing its functionality and arguments. If you have adapted the code from other open-source projects, don't forget to cite the source project in docstring and make sure your behavior is not against its license. Typically, we do not accept any code snippet under GPL license. [A Short Guide to Open Source Licenses](https://medium.com/nationwide-technology/a-short-guide-to-open-source-licenses-cf5b1c329edd)
+
+  - [ ] Test-time correctness
+
+    > If you are reproducing the result from a paper, make sure your model's inference-time performance matches that in the original paper. The weights usually could be obtained by simply renaming the keys in the official pre-trained weights. This test could be skipped though, if you are able to prove the training-time correctness and check the second milestone.
+
+  - [ ] A full README
+
+    > As this template does.
+
+- [ ] Milestone 2: Indicates a successful model implementation.
+
+  - [ ] Training-time correctness
+
+    > If you are reproducing the result from a paper, checking this item means that you should have trained your model from scratch based on the original paper's specification and verified that the final result matches the report within a minor error range.
+
+- [ ] Milestone 3: Good to be a part of our core package!
+
+  - [ ] Type hints and docstrings
+
+    > Ideally *all* the methods should have [type hints](https://www.pythontutorial.net/python-basics/python-type-hints/) and [docstrings](https://google.github.io/styleguide/pyguide.html#381-docstrings). [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/mmocr/utils/polygon_utils.py#L80-L96)
+
+  - [ ] Unit tests
+
+    > Unit tests for each module are required. [Example](https://github.com/open-mmlab/mmocr/blob/76637a290507f151215d299707c57cea5120976e/tests/test_utils/test_polygon_utils.py#L97-L106)
+
+  - [ ] Code polishing
+
+    > Refactor your code according to reviewer's comment.
+
+  - [ ] Metafile.yml
+
+    > It will be parsed by MIM and Inferencer. [Example](https://github.com/open-mmlab/mmocr/blob/1.x/configs/textdet/dbnet/metafile.yml)
+
+- [ ] Move your modules into the core package following the codebase's file hierarchy structure.
+
+  > In particular, you may have to refactor this README into a standard one. [Example](/configs/textdet/dbnet/README.md)
+
+- [ ] Refactor your modules into the core package following the codebase's file hierarchy structure.
diff --git a/mmocr-dev-1.x/projects/example_project/configs/dbnet_dummy-resnet_fpnc_1200e_icdar2015.py b/mmocr-dev-1.x/projects/example_project/configs/dbnet_dummy-resnet_fpnc_1200e_icdar2015.py
new file mode 100644
index 0000000000000000000000000000000000000000..4e55154768f51d8d267217a8a5d190a55e63af29
--- /dev/null
+++ b/mmocr-dev-1.x/projects/example_project/configs/dbnet_dummy-resnet_fpnc_1200e_icdar2015.py
@@ -0,0 +1,5 @@
+_base_ = ['mmocr::textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py']
+
+custom_imports = dict(imports=['dummy'])
+
+_base_.model.backbone.type = 'DummyResNet'
diff --git a/mmocr-dev-1.x/projects/example_project/dummy/__init__.py b/mmocr-dev-1.x/projects/example_project/dummy/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..70df7896d6ddb28688204a6402a2270e09ec255a
--- /dev/null
+++ b/mmocr-dev-1.x/projects/example_project/dummy/__init__.py
@@ -0,0 +1,3 @@
+from .dummy_resnet import DummyResNet
+
+__all__ = ['DummyResNet']
diff --git a/mmocr-dev-1.x/projects/example_project/dummy/dummy_resnet.py b/mmocr-dev-1.x/projects/example_project/dummy/dummy_resnet.py
new file mode 100644
index 0000000000000000000000000000000000000000..8ab3378218cd6707625c10c751df0f07b086fab7
--- /dev/null
+++ b/mmocr-dev-1.x/projects/example_project/dummy/dummy_resnet.py
@@ -0,0 +1,16 @@
+from mmdet.models.backbones import ResNet
+
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class DummyResNet(ResNet):
+    """Implements a dummy ResNet wrapper for demonstration purpose.
+
+    Args:
+        **kwargs: All the arguments are passed to the parent class.
+    """
+
+    def __init__(self, **kwargs) -> None:
+        print('Hello world!')
+        super().__init__(**kwargs)
diff --git a/mmocr-dev-1.x/projects/faq.md b/mmocr-dev-1.x/projects/faq.md
new file mode 100644
index 0000000000000000000000000000000000000000..80054b2cac008124df94c208b9a7782015a02183
--- /dev/null
+++ b/mmocr-dev-1.x/projects/faq.md
@@ -0,0 +1,21 @@
+# Projects FAQ
+
+Q1: Why set up `projects/` folder?
+
+Implementing new models and features into OpenMMLab's algorithm libraries could be troublesome due to the rigorous requirements on code quality, which could hinder the fast iteration of SOTA models and might discourage our members from sharing their latest outcomes here. And that's why we have this `projects/` folder now, where some experimental features, frameworks and models are placed, only needed to satisfy the minimum requirement on the code quality, and can be used as standalone libraries. Users are welcome to use them if they [use MMOCR from source](https://mmocr.readthedocs.io/en/dev-1.x/get_started/install.html#best-practices).
+
+Q2: Why should there be a checklist for a project?
+
+This checklist is crucial not only for this project's developers but the entire community, since there might be some other contributors joining this project and deciding their starting point from this list. It also helps maintainers accurately estimate time and effort on further code polishing, if needed.
+
+Q3: What kind of PR will be merged?
+
+Reaching the first milestone means that this project suffices the minimum requirement of being merged into `projects/`. That is, the very first PR of a project must have all the terms in the first milestone checked. We do not have any extra requirements on the project's following PRs, so they can be a minor bug fix or update, and do not have to achieve one milestone at once. But keep in mind that this project is only eligible to become a part of the core package upon attaining the last milestone.
+
+Q4: Compared to other models in the core packages, why do the model implementations in projects have different training/testing commands?
+
+Projects are organized independently from the core package, and therefore their modules cannot be directly imported by train.py and test.py. Each model implementation in projects should either use `mim` for training/testing as suggested in the example project or provide a custom train.py/test.py.
+
+Q5: How to debug a project with a debugger?
+
+Debugger makes our lives easier, but using it becomes a bit tricky if we have to train/test a model via `mim`. The way to circumvent that is that we can take advantage of relative path to import these modules. Assuming that we are developing a project X and the core modules are placed under `projects/X/modules`, then simply adding `custom_imports = dict(imports='projects.X.modules')` to the config allows us to debug from usual entrypoints (e.g. `tools/train.py`) from the root directory of the algorithm library. Just don't forget to remove 'projects.X' before project publishment.
diff --git a/mmocr-dev-1.x/projects/selected.txt b/mmocr-dev-1.x/projects/selected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..544ad82c640fea0d7f496ce9db360450de453354
--- /dev/null
+++ b/mmocr-dev-1.x/projects/selected.txt
@@ -0,0 +1,3 @@
+projects/ABCNet/README.md
+projects/ABCNet/README_V2.md
+projects/SPTS/README.md
diff --git a/mmocr-dev-1.x/requirements.txt b/mmocr-dev-1.x/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6981bd723391a980c0f22baeab39d0adbcb68679
--- /dev/null
+++ b/mmocr-dev-1.x/requirements.txt
@@ -0,0 +1,4 @@
+-r requirements/build.txt
+-r requirements/optional.txt
+-r requirements/runtime.txt
+-r requirements/tests.txt
diff --git a/mmocr-dev-1.x/requirements/albu.txt b/mmocr-dev-1.x/requirements/albu.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ddcc3fb3b271dcad3526ef130e1267be3fc20b5b
--- /dev/null
+++ b/mmocr-dev-1.x/requirements/albu.txt
@@ -0,0 +1 @@
+albumentations>=1.1.0 --no-binary qudida,albumentations
diff --git a/mmocr-dev-1.x/requirements/build.txt b/mmocr-dev-1.x/requirements/build.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e06b090722e0079badeb07d094d39571754995e4
--- /dev/null
+++ b/mmocr-dev-1.x/requirements/build.txt
@@ -0,0 +1,4 @@
+# These must be installed before building mmocr
+numpy
+pyclipper
+torch>=1.1
diff --git a/mmocr-dev-1.x/requirements/docs.txt b/mmocr-dev-1.x/requirements/docs.txt
new file mode 100644
index 0000000000000000000000000000000000000000..16ddccda5db65197434a6c1b543f6c87395465a8
--- /dev/null
+++ b/mmocr-dev-1.x/requirements/docs.txt
@@ -0,0 +1,9 @@
+docutils==0.16.0
+markdown>=3.4.0
+myst-parser
+-e git+https://github.com/open-mmlab/pytorch_sphinx_theme.git#egg=pytorch_sphinx_theme
+sphinx==4.0.2
+sphinx-tabs
+sphinx_copybutton
+sphinx_markdown_tables>=0.0.16
+tabulate
diff --git a/mmocr-dev-1.x/requirements/mminstall.txt b/mmocr-dev-1.x/requirements/mminstall.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fe6b6d945dd1e5593a2d3569a33f848aed864ec7
--- /dev/null
+++ b/mmocr-dev-1.x/requirements/mminstall.txt
@@ -0,0 +1,3 @@
+mmcv>=2.0.0rc4,<2.1.0
+mmdet>=3.0.0rc5,<3.1.0
+mmengine>=0.7.0, <1.0.0
diff --git a/mmocr-dev-1.x/requirements/optional.txt b/mmocr-dev-1.x/requirements/optional.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/mmocr-dev-1.x/requirements/readthedocs.txt b/mmocr-dev-1.x/requirements/readthedocs.txt
new file mode 100644
index 0000000000000000000000000000000000000000..45edbc15ff0f9496f452c4d94764806640d0dc8c
--- /dev/null
+++ b/mmocr-dev-1.x/requirements/readthedocs.txt
@@ -0,0 +1,16 @@
+imgaug
+kwarray
+lmdb
+matplotlib
+mmcv>=2.0.0rc1
+mmdet>=3.0.0rc0
+mmengine>=0.1.0
+pyclipper
+rapidfuzz>=2.0.0
+regex
+scikit-image
+scipy
+shapely
+titlecase
+torch
+torchvision
diff --git a/mmocr-dev-1.x/requirements/runtime.txt b/mmocr-dev-1.x/requirements/runtime.txt
new file mode 100644
index 0000000000000000000000000000000000000000..52a9eec3c3bb54d6ae96d1293923c56c2399d690
--- /dev/null
+++ b/mmocr-dev-1.x/requirements/runtime.txt
@@ -0,0 +1,9 @@
+imgaug
+lmdb
+matplotlib
+numpy
+opencv-python >=4.2.0.32, != 4.5.5.*  # avoid Github security alert
+pyclipper
+pycocotools
+rapidfuzz>=2.0.0
+scikit-image
diff --git a/mmocr-dev-1.x/requirements/tests.txt b/mmocr-dev-1.x/requirements/tests.txt
new file mode 100644
index 0000000000000000000000000000000000000000..19711e108cae25ce6e65f5493d3a4fe2646bc51c
--- /dev/null
+++ b/mmocr-dev-1.x/requirements/tests.txt
@@ -0,0 +1,15 @@
+asynctest
+codecov
+flake8
+interrogate
+isort
+# Note: used for kwarray.group_items, this may be ported to mmcv in the future.
+kwarray
+lanms-neo==1.0.2
+parameterized
+pytest
+pytest-cov
+pytest-runner
+ubelt
+xdoctest >= 0.10.0
+yapf
diff --git a/mmocr-dev-1.x/resources/illustration.jpg b/mmocr-dev-1.x/resources/illustration.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..b13d062221e44076248420803de1c34e4f28be52
Binary files /dev/null and b/mmocr-dev-1.x/resources/illustration.jpg differ
diff --git a/mmocr-dev-1.x/resources/kie.jpg b/mmocr-dev-1.x/resources/kie.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..f89865b38f2bd0d1d282291de208720d362fbbcd
Binary files /dev/null and b/mmocr-dev-1.x/resources/kie.jpg differ
diff --git a/mmocr-dev-1.x/resources/mmocr-logo.png b/mmocr-dev-1.x/resources/mmocr-logo.png
new file mode 100644
index 0000000000000000000000000000000000000000..c81a3c8351748fa4d25e2d215b5997b930244aa6
Binary files /dev/null and b/mmocr-dev-1.x/resources/mmocr-logo.png differ
diff --git a/mmocr-dev-1.x/resources/textdet.jpg b/mmocr-dev-1.x/resources/textdet.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..64b9b5b7fe032ffaf23ab4f679f04ede48b6c756
Binary files /dev/null and b/mmocr-dev-1.x/resources/textdet.jpg differ
diff --git a/mmocr-dev-1.x/resources/textrecog.jpg b/mmocr-dev-1.x/resources/textrecog.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..24332f32bd0249c94c1c15f8b739c437d53044c9
Binary files /dev/null and b/mmocr-dev-1.x/resources/textrecog.jpg differ
diff --git a/mmocr-dev-1.x/resources/verification.png b/mmocr-dev-1.x/resources/verification.png
new file mode 100644
index 0000000000000000000000000000000000000000..6f0e5eb0a4ee99b88c130f9d15d2993891c34245
Binary files /dev/null and b/mmocr-dev-1.x/resources/verification.png differ
diff --git a/mmocr-dev-1.x/setup.cfg b/mmocr-dev-1.x/setup.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..e54ab9ea76642e8e4bbf5c8a7895d14d9ef9b637
--- /dev/null
+++ b/mmocr-dev-1.x/setup.cfg
@@ -0,0 +1,23 @@
+[bdist_wheel]
+universal=1
+
+[yapf]
+based_on_style = pep8
+blank_line_before_nested_class_or_def = true
+split_before_expression_after_opening_paren = true
+split_penalty_import_names=0
+SPLIT_PENALTY_AFTER_OPENING_BRACKET=800
+
+[isort]
+line_length = 79
+multi_line_output = 0
+extra_standard_library = setuptools
+known_first_party = mmocr
+known_third_party = PIL,cv2,imgaug,lanms,lmdb,matplotlib,mmcv,mmdet,numpy,packaging,pyclipper,pytest,pytorch_sphinx_theme,rapidfuzz,requests,scipy,shapely,skimage,titlecase,torch,torchvision,ts,yaml,mmengine
+no_lines_before = STDLIB,LOCALFOLDER
+default_section = THIRDPARTY
+
+[style]
+BASED_ON_STYLE = pep8
+BLANK_LINE_BEFORE_NESTED_CLASS_OR_DEF = true
+SPLIT_BEFORE_EXPRESSION_AFTER_OPENING_PAREN = true
diff --git a/mmocr-dev-1.x/setup.py b/mmocr-dev-1.x/setup.py
new file mode 100644
index 0000000000000000000000000000000000000000..edc22512aacd3095bc0d7fb6c79e9c596b687320
--- /dev/null
+++ b/mmocr-dev-1.x/setup.py
@@ -0,0 +1,201 @@
+import os
+import os.path as osp
+import shutil
+import sys
+import warnings
+from setuptools import find_packages, setup
+
+
+def readme():
+    with open('README.md', encoding='utf-8') as f:
+        content = f.read()
+    return content
+
+
+version_file = 'mmocr/version.py'
+is_windows = sys.platform == 'win32'
+
+
+def add_mim_extension():
+    """Add extra files that are required to support MIM into the package.
+
+    These files will be added by creating a symlink to the originals if the
+    package is installed in `editable` mode (e.g. pip install -e .), or by
+    copying from the originals otherwise.
+    """
+
+    # parse installment mode
+    if 'develop' in sys.argv:
+        # installed by `pip install -e .`
+        mode = 'symlink'
+    elif 'sdist' in sys.argv or 'bdist_wheel' in sys.argv:
+        # installed by `pip install .`
+        # or create source distribution by `python setup.py sdist`
+        mode = 'copy'
+    else:
+        return
+
+    filenames = ['tools', 'configs', 'model-index.yml', 'dicts']
+    repo_path = osp.dirname(__file__)
+    mim_path = osp.join(repo_path, 'mmocr', '.mim')
+    os.makedirs(mim_path, exist_ok=True)
+
+    for filename in filenames:
+        if osp.exists(filename):
+            src_path = osp.join(repo_path, filename)
+            tar_path = osp.join(mim_path, filename)
+
+            if osp.isfile(tar_path) or osp.islink(tar_path):
+                os.remove(tar_path)
+            elif osp.isdir(tar_path):
+                shutil.rmtree(tar_path)
+
+            if mode == 'symlink':
+                src_relpath = osp.relpath(src_path, osp.dirname(tar_path))
+                try:
+                    os.symlink(src_relpath, tar_path)
+                except OSError:
+                    # Creating a symbolic link on windows may raise an
+                    # `OSError: [WinError 1314]` due to privilege. If
+                    # the error happens, the src file will be copied
+                    mode = 'copy'
+                    warnings.warn(
+                        f'Failed to create a symbolic link for {src_relpath}, '
+                        f'and it will be copied to {tar_path}')
+                else:
+                    continue
+
+            if mode == 'copy':
+                if osp.isfile(src_path):
+                    shutil.copyfile(src_path, tar_path)
+                elif osp.isdir(src_path):
+                    shutil.copytree(src_path, tar_path)
+                else:
+                    warnings.warn(f'Cannot copy file {src_path}.')
+            else:
+                raise ValueError(f'Invalid mode {mode}')
+
+
+def get_version():
+    with open(version_file) as f:
+        exec(compile(f.read(), version_file, 'exec'))
+    import sys
+
+    # return short version for sdist
+    if 'sdist' in sys.argv or 'bdist_wheel' in sys.argv:
+        return locals()['short_version']
+    else:
+        return locals()['__version__']
+
+
+def parse_requirements(fname='requirements.txt', with_version=True):
+    """Parse the package dependencies listed in a requirements file but strip
+    specific version information.
+
+    Args:
+        fname (str): Path to requirements file.
+        with_version (bool, default=False): If True, include version specs.
+    Returns:
+        info (list[str]): List of requirements items.
+    CommandLine:
+        python -c "import setup; print(setup.parse_requirements())"
+    """
+    import re
+    import sys
+    from os.path import exists
+    require_fpath = fname
+
+    def parse_line(line):
+        """Parse information from a line in a requirements text file."""
+        if line.startswith('-r '):
+            # Allow specifying requirements in other files
+            target = line.split(' ')[1]
+            for info in parse_require_file(target):
+                yield info
+        else:
+            info = {'line': line}
+            if line.startswith('-e '):
+                info['package'] = line.split('#egg=')[1]
+            else:
+                # Remove versioning from the package
+                pat = '(' + '|'.join(['>=', '==', '>']) + ')'
+                parts = re.split(pat, line, maxsplit=1)
+                parts = [p.strip() for p in parts]
+
+                info['package'] = parts[0]
+                if len(parts) > 1:
+                    op, rest = parts[1:]
+                    if ';' in rest:
+                        # Handle platform specific dependencies
+                        # http://setuptools.readthedocs.io/en/latest/setuptools.html#declaring-platform-specific-dependencies
+                        version, platform_deps = map(str.strip,
+                                                     rest.split(';'))
+                        info['platform_deps'] = platform_deps
+                    else:
+                        version = rest  # NOQA
+                    info['version'] = (op, version)
+            yield info
+
+    def parse_require_file(fpath):
+        with open(fpath) as f:
+            for line in f.readlines():
+                line = line.strip()
+                if line and not line.startswith('#'):
+                    yield from parse_line(line)
+
+    def gen_packages_items():
+        if exists(require_fpath):
+            for info in parse_require_file(require_fpath):
+                parts = [info['package']]
+                if with_version and 'version' in info:
+                    parts.extend(info['version'])
+                if not sys.version.startswith('3.4'):
+                    # apparently package_deps are broken in 3.4
+                    platform_deps = info.get('platform_deps')
+                    if platform_deps is not None:
+                        parts.append(';' + platform_deps)
+                item = ''.join(parts)
+                yield item
+
+    packages = list(gen_packages_items())
+    return packages
+
+
+if __name__ == '__main__':
+    add_mim_extension()
+    library_dirs = [
+        lp for lp in os.environ.get('LD_LIBRARY_PATH', '').split(':')
+        if len(lp) > 1
+    ]
+    setup(
+        name='mmocr',
+        version=get_version(),
+        description='OpenMMLab Text Detection, OCR, and NLP Toolbox',
+        long_description=readme(),
+        long_description_content_type='text/markdown',
+        maintainer='MMOCR Authors',
+        maintainer_email='openmmlab@gmail.com',
+        keywords='Text Detection, OCR, KIE, NLP',
+        packages=find_packages(exclude=('configs', 'tools', 'demo')),
+        include_package_data=True,
+        url='https://github.com/open-mmlab/mmocr',
+        classifiers=[
+            'Development Status :: 4 - Beta',
+            'License :: OSI Approved :: Apache Software License',
+            'Operating System :: OS Independent',
+            'Programming Language :: Python :: 3',
+            'Programming Language :: Python :: 3.6',
+            'Programming Language :: Python :: 3.7',
+            'Programming Language :: Python :: 3.8',
+            'Programming Language :: Python :: 3.9',
+        ],
+        license='Apache License 2.0',
+        install_requires=parse_requirements('requirements/runtime.txt'),
+        extras_require={
+            'all': parse_requirements('requirements.txt'),
+            'tests': parse_requirements('requirements/tests.txt'),
+            'build': parse_requirements('requirements/build.txt'),
+            'optional': parse_requirements('requirements/optional.txt'),
+            'mim': parse_requirements('requirements/mminstall.txt'),
+        },
+        zip_safe=False)
diff --git a/mmocr-dev-1.x/tests/models/textrecog/test_preprocessors/test_tps_preprocessor.py b/mmocr-dev-1.x/tests/models/textrecog/test_preprocessors/test_tps_preprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..b069db8c2f1c07eb0344928a57a36344c0e4044b
--- /dev/null
+++ b/mmocr-dev-1.x/tests/models/textrecog/test_preprocessors/test_tps_preprocessor.py
@@ -0,0 +1,26 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.preprocessors import STN, TPStransform
+
+
+class TestTPS(TestCase):
+
+    def test_tps_transform(self):
+        tps = TPStransform(output_image_size=(32, 100), num_control_points=20)
+        image = torch.rand(2, 3, 32, 64)
+        control_points = torch.rand(2, 20, 2)
+        transformed_image = tps(image, control_points)
+        self.assertEqual(transformed_image.shape, (2, 3, 32, 100))
+
+    def test_stn(self):
+        stn = STN(
+            in_channels=3,
+            resized_image_size=(32, 64),
+            output_image_size=(32, 100),
+            num_control_points=20)
+        image = torch.rand(2, 3, 64, 256)
+        transformed_image = stn(image)
+        self.assertEqual(transformed_image.shape, (2, 3, 32, 100))
diff --git a/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_kie_inferencer.py b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_kie_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..5f4fa5450ef5502b6c09b35fa77cafaffeacc734
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_kie_inferencer.py
@@ -0,0 +1,175 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os.path as osp
+import random
+import tempfile
+from copy import deepcopy
+from unittest import TestCase, mock
+
+import mmcv
+import mmengine
+import numpy as np
+import torch
+
+from mmocr.apis.inferencers import KIEInferencer
+from mmocr.utils.check_argument import is_type_list
+from mmocr.utils.polygon_utils import poly2bbox
+from mmocr.utils.typing_utils import KIEDataSample
+
+
+class TestKIEInferencer(TestCase):
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def setUp(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        seed = 1
+        random.seed(seed)
+        np.random.seed(seed)
+        torch.manual_seed(seed)
+        # init from alias
+        self.inferencer = KIEInferencer('SDMGR')
+        self.inferencer_novisual = KIEInferencer(
+            'sdmgr_novisual_60e_wildreceipt')
+        with open('tests/data/kie_toy_dataset/wildreceipt/data.txt', 'r') as f:
+            annos = [json.loads(anno) for anno in f.readlines()]
+
+        self.data_novisual = []
+        self.data_img_str = []
+        self.data_img_ndarray = []
+        self.data_img_woshape = []
+
+        for anno in annos:
+            datum_novisual = dict(img_shape=(anno['height'], anno['width']))
+            datum_novisual['instances'] = []
+            for ann in anno['annotations']:
+                instance = {}
+                instance['bbox'] = poly2bbox(
+                    np.array(ann['box'], dtype=np.float32))
+                instance['text'] = ann['text']
+                datum_novisual['instances'].append(instance)
+            self.data_novisual.append(datum_novisual)
+
+            datum_img_str = deepcopy(datum_novisual)
+            datum_img_str['img'] = anno['file_name']
+            self.data_img_str.append(datum_img_str)
+
+            datum_img_ndarray = deepcopy(datum_novisual)
+            datum_img_ndarray['img'] = mmcv.imread(anno['file_name'])
+            self.data_img_ndarray.append(datum_img_ndarray)
+
+            datum_img_woshape = deepcopy(datum_img_str)
+            del datum_img_woshape['img_shape']
+            self.data_img_woshape.append(datum_img_woshape)
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_init(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        # init from metafile
+        KIEInferencer('sdmgr_unet16_60e_wildreceipt')
+        # init from cfg
+        KIEInferencer(
+            'configs/kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py',
+            'https://download.openmmlab.com/mmocr/kie/sdmgr/'
+            'sdmgr_unet16_60e_wildreceipt/'
+            'sdmgr_unet16_60e_wildreceipt_20220825_151648-22419f37.pth')
+
+    def assert_predictions_equal(self, preds1, preds2):
+        for pred1, pred2 in zip(preds1, preds2):
+            self.assert_prediction_equal(pred1, pred2)
+
+    def assert_prediction_equal(self, pred1, pred2):
+        self.assertTrue(np.allclose(pred1['labels'], pred2['labels'], 0.1))
+        self.assertTrue(
+            np.allclose(pred1['edge_scores'], pred2['edge_scores'], 0.1))
+        self.assertTrue(
+            np.allclose(pred1['edge_labels'], pred2['edge_labels'], 0.1))
+        self.assertTrue(np.allclose(pred1['scores'], pred2['scores'], 0.1))
+
+    def test_call(self):
+        # no visual, single input
+        res_novis_1 = self.inferencer_novisual(
+            self.data_novisual[0], return_vis=True)
+        res_novis_2 = self.inferencer_novisual(
+            self.data_img_woshape[0], return_vis=True)
+        self.assert_predictions_equal(res_novis_1['predictions'],
+                                      res_novis_2['predictions'])
+        self.assertIn('visualization', res_novis_1)
+        self.assertIn('visualization', res_novis_2)
+
+        # no visual, multiple inputs
+        res_novis_1 = self.inferencer_novisual(
+            self.data_novisual, return_vis=True)
+        res_novis_2 = self.inferencer_novisual(
+            self.data_img_woshape, return_vis=True)
+        self.assert_predictions_equal(res_novis_1['predictions'],
+                                      res_novis_2['predictions'])
+        self.assertIn('visualization', res_novis_1)
+        self.assertIn('visualization', res_novis_2)
+
+        # visual, single input
+        res_ndarray = self.inferencer(
+            self.data_img_ndarray[0], return_vis=True)
+        # path
+        res_path = self.inferencer(self.data_img_str[0], return_vis=True)
+        self.assert_predictions_equal(res_path['predictions'],
+                                      res_ndarray['predictions'])
+        self.assertIn('visualization', res_path)
+        self.assertIn('visualization', res_ndarray)
+        self.assertTrue(
+            np.allclose(res_ndarray['visualization'],
+                        res_path['visualization']))
+
+        # visual, multiple inputs & different bs
+        res_ndarray = self.inferencer(self.data_img_ndarray, return_vis=True)
+        # path
+        res_path = self.inferencer(self.data_img_str, return_vis=True)
+        self.assert_predictions_equal(res_path['predictions'],
+                                      res_ndarray['predictions'])
+        for vis1, vis2 in zip(res_ndarray['visualization'],
+                              res_path['visualization']):
+            self.assertTrue(np.allclose(vis1, vis2))
+
+    def test_visualize(self):
+
+        # img_out_dir
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            self.inferencer(self.data_img_str, out_dir=tmp_dir, save_vis=True)
+            for img_dir in ['1.jpg', '2.jpg']:
+                self.assertTrue(osp.exists(osp.join(tmp_dir, 'vis', img_dir)))
+
+    def test_postprocess(self):
+        # return_datasample
+        res = self.inferencer(self.data_img_ndarray, return_datasamples=True)
+        self.assertTrue(is_type_list(res['predictions'], KIEDataSample))
+
+        # pred_out_file
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            res = self.inferencer(
+                self.data_img_ndarray,
+                print_result=True,
+                out_dir=tmp_dir,
+                save_pred=True)
+            file_names = [
+                f'{self.inferencer.num_unnamed_imgs - i}.json'
+                for i in range(len(self.data_img_ndarray), 0, -1)
+            ]
+            for pred, file_name in zip(res['predictions'], file_names):
+                dumped_res = mmengine.load(
+                    osp.join(tmp_dir, 'preds', file_name))
+                self.assert_prediction_equal(dumped_res, pred)
+
+    @mock.patch('mmocr.apis.inferencers.kie_inferencer._load_checkpoint')
+    def test_load_metainfo_to_visualizer(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: {'meta': 'test'}
+        with self.assertRaises(ValueError):
+            self.inferencer._load_metainfo_to_visualizer('test', {})
+
+        mock_load.side_effect = lambda *x, **y: {
+            'meta': {
+                'dataset_meta': 'test'
+            }
+        }
+        self.inferencer._load_metainfo_to_visualizer('test', {})
+
+        with self.assertRaises(ValueError):
+            self.inferencer._load_metainfo_to_visualizer(None, {})
diff --git a/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_mmocr_inferencer.py b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_mmocr_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..8628cd44fcd25682197f4ef77214a36557668292
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_mmocr_inferencer.py
@@ -0,0 +1,255 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import random
+import tempfile
+from unittest import TestCase, mock
+
+import mmcv
+import mmengine
+import numpy as np
+import torch
+
+from mmocr.apis.inferencers import MMOCRInferencer
+
+
+class TestMMOCRInferencer(TestCase):
+
+    def setUp(self):
+        seed = 1
+        random.seed(seed)
+        np.random.seed(seed)
+        torch.manual_seed(seed)
+
+    def assert_predictions_equal(self, pred1, pred2):
+        if 'det_polygons' in pred1:
+            self.assertTrue(
+                np.allclose(pred1['det_polygons'], pred2['det_polygons'], 0.1))
+        if 'det_scores' in pred1:
+            self.assertTrue(
+                np.allclose(pred1['det_scores'], pred2['det_scores'], 0.1))
+        if 'rec_texts' in pred1:
+            self.assertEqual(pred1['rec_texts'], pred2['rec_texts'])
+        if 'rec_scores' in pred1:
+            self.assertTrue(
+                np.allclose(pred1['rec_scores'], pred2['rec_scores'], 0.1))
+        if 'kie_labels' in pred1:
+            self.assertEqual(pred1['kie_labels'], pred2['kie_labels'])
+        if 'kie_scores' in pred1:
+            self.assertTrue(
+                np.allclose(pred1['kie_scores'], pred2['kie_scores'], 0.1))
+        if 'kie_edge_scores' in pred1:
+            self.assertTrue(
+                np.allclose(pred1['kie_edge_scores'], pred2['kie_edge_scores'],
+                            0.1))
+        if 'kie_edge_labels' in pred1:
+            self.assertEqual(pred1['kie_edge_labels'],
+                             pred2['kie_edge_labels'])
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_init(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        MMOCRInferencer(det='dbnet_resnet18_fpnc_1200e_icdar2015')
+        MMOCRInferencer(
+            det='configs/textdet/dbnet/dbnet_resnet18_fpnc_1200e_icdar2015.py',
+            det_weights='https://download.openmmlab.com/mmocr/textdet/dbnet/'
+            'dbnet_resnet18_fpnc_1200e_icdar2015/'
+            'dbnet_resnet18_fpnc_1200e_icdar2015_20220825_221614-7c0e94f2.pth')
+        MMOCRInferencer(rec='crnn_mini-vgg_5e_mj')
+        with self.assertRaises(ValueError):
+            MMOCRInferencer(det='dummy')
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_det(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        inferencer = MMOCRInferencer(det='dbnet_resnet18_fpnc_1200e_icdar2015')
+        img_path = 'tests/data/det_toy_dataset/imgs/test/img_1.jpg'
+        res_img_path = inferencer(img_path, return_vis=True)
+
+        img_paths = [
+            'tests/data/det_toy_dataset/imgs/test/img_1.jpg',
+            'tests/data/det_toy_dataset/imgs/test/img_2.jpg'
+        ]
+        res_img_paths = inferencer(img_paths, return_vis=True)
+        self.assert_predictions_equal(res_img_path['predictions'][0],
+                                      res_img_paths['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_path['visualization'][0],
+                        res_img_paths['visualization'][0]))
+
+        img_ndarray = mmcv.imread(img_path)
+        res_img_ndarray = inferencer(img_ndarray, return_vis=True)
+
+        img_ndarrays = [mmcv.imread(p) for p in img_paths]
+        res_img_ndarrays = inferencer(img_ndarrays, return_vis=True)
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_ndarrays['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_ndarrays['visualization'][0]))
+        # cross checking: ndarray <-> path
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_path['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_path['visualization'][0]))
+
+        # test save_vis and save_pred
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            res = inferencer(
+                img_paths, out_dir=tmp_dir, save_vis=True, save_pred=True)
+            for img_dir in ['img_1.jpg', 'img_2.jpg']:
+                self.assertTrue(osp.exists(osp.join(tmp_dir, 'vis', img_dir)))
+            for i, pred_dir in enumerate(['img_1.json', 'img_2.json']):
+                dumped_res = mmengine.load(
+                    osp.join(tmp_dir, 'preds', pred_dir))
+                self.assert_predictions_equal(res['predictions'][i],
+                                              dumped_res)
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_rec(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        inferencer = MMOCRInferencer(rec='crnn_mini-vgg_5e_mj')
+        img_path = 'tests/data/rec_toy_dataset/imgs/1036169.jpg'
+        res_img_path = inferencer(img_path, return_vis=True)
+
+        img_paths = [
+            'tests/data/rec_toy_dataset/imgs/1036169.jpg',
+            'tests/data/rec_toy_dataset/imgs/1058891.jpg'
+        ]
+        res_img_paths = inferencer(img_paths, return_vis=True)
+        self.assert_predictions_equal(res_img_path['predictions'][0],
+                                      res_img_paths['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_path['visualization'][0],
+                        res_img_paths['visualization'][0]))
+        # cross checking: ndarray <-> path
+        img_ndarray = mmcv.imread(img_path)
+        res_img_ndarray = inferencer(img_ndarray, return_vis=True)
+
+        img_ndarrays = [mmcv.imread(p) for p in img_paths]
+        res_img_ndarrays = inferencer(img_ndarrays, return_vis=True)
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_ndarrays['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_ndarrays['visualization'][0]))
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_path['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_path['visualization'][0]))
+
+        # test save_vis and save_pred
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            res = inferencer(
+                img_paths, out_dir=tmp_dir, save_vis=True, save_pred=True)
+            for img_dir in ['1036169.jpg', '1058891.jpg']:
+                self.assertTrue(osp.exists(osp.join(tmp_dir, 'vis', img_dir)))
+            for i, pred_dir in enumerate(['1036169.json', '1058891.json']):
+                dumped_res = mmengine.load(
+                    osp.join(tmp_dir, 'preds', pred_dir))
+                self.assert_predictions_equal(res['predictions'][i],
+                                              dumped_res)
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_det_rec(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        inferencer = MMOCRInferencer(
+            det='dbnet_resnet18_fpnc_1200e_icdar2015',
+            rec='crnn_mini-vgg_5e_mj')
+        img_path = 'tests/data/det_toy_dataset/imgs/test/img_1.jpg'
+        res_img_path = inferencer(img_path, return_vis=True)
+
+        img_paths = [
+            'tests/data/det_toy_dataset/imgs/test/img_1.jpg',
+            'tests/data/det_toy_dataset/imgs/test/img_2.jpg'
+        ]
+        res_img_paths = inferencer(img_paths, return_vis=True)
+        self.assert_predictions_equal(res_img_path['predictions'][0],
+                                      res_img_paths['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_path['visualization'][0],
+                        res_img_paths['visualization'][0]))
+
+        img_ndarray = mmcv.imread(img_path)
+        res_img_ndarray = inferencer(img_ndarray, return_vis=True)
+
+        img_ndarrays = [mmcv.imread(p) for p in img_paths]
+        res_img_ndarrays = inferencer(img_ndarrays, return_vis=True)
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_ndarrays['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_ndarrays['visualization'][0]))
+        # cross checking: ndarray <-> path
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_path['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_path['visualization'][0]))
+
+        # test save_vis and save_pred
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            res = inferencer(
+                img_paths, out_dir=tmp_dir, save_vis=True, save_pred=True)
+            for img_dir in ['img_1.jpg', 'img_2.jpg']:
+                self.assertTrue(osp.exists(osp.join(tmp_dir, 'vis', img_dir)))
+            for i, pred_dir in enumerate(['img_1.json', 'img_2.json']):
+                dumped_res = mmengine.load(
+                    osp.join(tmp_dir, 'preds', pred_dir))
+                self.assert_predictions_equal(res['predictions'][i],
+                                              dumped_res)
+
+        # corner case: when the det model cannot detect any texts
+        inferencer(np.zeros((100, 100, 3)), return_vis=True)
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_dec_rec_kie(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        inferencer = MMOCRInferencer(
+            det='dbnet_resnet18_fpnc_1200e_icdar2015',
+            rec='crnn_mini-vgg_5e_mj',
+            kie='sdmgr_unet16_60e_wildreceipt')
+        img_path = 'tests/data/kie_toy_dataset/wildreceipt/1.jpeg'
+        res_img_path = inferencer(img_path, return_vis=True)
+
+        img_paths = [
+            'tests/data/kie_toy_dataset/wildreceipt/1.jpeg',
+            'tests/data/kie_toy_dataset/wildreceipt/2.jpeg'
+        ]
+        res_img_paths = inferencer(img_paths, return_vis=True)
+        self.assert_predictions_equal(res_img_path['predictions'][0],
+                                      res_img_paths['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_path['visualization'][0],
+                        res_img_paths['visualization'][0]))
+
+        img_ndarray = mmcv.imread(img_path)
+        res_img_ndarray = inferencer(img_ndarray, return_vis=True)
+
+        img_ndarrays = [mmcv.imread(p) for p in img_paths]
+        res_img_ndarrays = inferencer(img_ndarrays, return_vis=True)
+
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_ndarrays['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_ndarrays['visualization'][0]))
+        # cross checking: ndarray <-> path
+        self.assert_predictions_equal(res_img_ndarray['predictions'][0],
+                                      res_img_path['predictions'][0])
+        self.assertTrue(
+            np.allclose(res_img_ndarray['visualization'][0],
+                        res_img_path['visualization'][0]))
+
+        # test save_vis and save_pred
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            res = inferencer(
+                img_paths, out_dir=tmp_dir, save_vis=True, save_pred=True)
+            for img_dir in ['1.jpg', '2.jpg']:
+                self.assertTrue(osp.exists(osp.join(tmp_dir, 'vis', img_dir)))
+            for i, pred_dir in enumerate(['1.json', '2.json']):
+                dumped_res = mmengine.load(
+                    osp.join(tmp_dir, 'preds', pred_dir))
+                self.assert_predictions_equal(res['predictions'][i],
+                                              dumped_res)
diff --git a/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_textdet_inferencer.py b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_textdet_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..badb4eaae45248a96cecdacd091e9d7365196ac6
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_textdet_inferencer.py
@@ -0,0 +1,138 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import random
+import tempfile
+from unittest import TestCase, mock
+
+import mmcv
+import mmengine
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.apis.inferencers import TextDetInferencer
+from mmocr.utils.check_argument import is_type_list
+from mmocr.utils.typing_utils import TextDetDataSample
+
+
+class TestTextDetinferencer(TestCase):
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def setUp(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        self.inferencer = TextDetInferencer('DB_r18')
+        seed = 1
+        random.seed(seed)
+        np.random.seed(seed)
+        torch.manual_seed(seed)
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_init(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        # init from metafile
+        TextDetInferencer('dbnet_resnet18_fpnc_1200e_icdar2015')
+        # init from cfg
+        TextDetInferencer(
+            'configs/textdet/dbnet/'
+            'dbnet_resnet18_fpnc_1200e_icdar2015.py',
+            'https://download.openmmlab.com/mmocr/textdet/dbnet/'
+            'dbnet_resnet18_fpnc_1200e_icdar2015/'
+            'dbnet_resnet18_fpnc_1200e_icdar2015_20220825_221614-7c0e94f2.pth')
+
+    def assert_predictions_equal(self, preds1, preds2):
+        for pred1, pred2 in zip(preds1, preds2):
+            self.assert_prediction_equal(pred1, pred2)
+
+    def assert_prediction_equal(self, pred1, pred2):
+        self.assertTrue(np.allclose(pred1['polygons'], pred2['polygons'], 0.1))
+        self.assertTrue(np.allclose(pred1['scores'], pred2['scores'], 0.1))
+
+    def test_call(self):
+        # single img
+        img_path = 'tests/data/det_toy_dataset/imgs/test/img_1.jpg'
+        res_path = self.inferencer(img_path, return_vis=True)
+        # ndarray
+        img = mmcv.imread(img_path)
+        res_ndarray = self.inferencer(img, return_vis=True)
+        self.assert_predictions_equal(res_path['predictions'],
+                                      res_ndarray['predictions'])
+        self.assertTrue(
+            np.allclose(res_path['visualization'],
+                        res_ndarray['visualization']))
+
+        # multiple images
+        img_paths = [
+            'tests/data/det_toy_dataset/imgs/test/img_1.jpg',
+            'tests/data/det_toy_dataset/imgs/test/img_2.jpg'
+        ]
+        res_path = self.inferencer(img_paths, return_vis=True)
+        # list of ndarray
+        imgs = [mmcv.imread(p) for p in img_paths]
+        res_ndarray = self.inferencer(imgs, return_vis=True)
+        self.assert_predictions_equal(res_path['predictions'],
+                                      res_ndarray['predictions'])
+        for i in range(len(img_paths)):
+            self.assertTrue(
+                np.allclose(res_path['visualization'][i],
+                            res_ndarray['visualization'][i]))
+
+        # img dir, test different batch sizes
+        img_dir = 'tests/data/det_toy_dataset/imgs/test/'
+        res_bs1 = self.inferencer(img_dir, batch_size=1, return_vis=True)
+        res_bs3 = self.inferencer(img_dir, batch_size=3, return_vis=True)
+        self.assert_predictions_equal(res_bs1['predictions'],
+                                      res_bs3['predictions'])
+        self.assertTrue(
+            np.array_equal(res_bs1['visualization'], res_bs3['visualization']))
+
+    def test_visualize(self):
+        img_paths = [
+            'tests/data/det_toy_dataset/imgs/test/img_1.jpg',
+            'tests/data/det_toy_dataset/imgs/test/img_2.jpg'
+        ]
+
+        # img_out_dir
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            self.inferencer(img_paths, out_dir=tmp_dir, save_vis=True)
+            for img_dir in ['img_1.jpg', 'img_2.jpg']:
+                self.assertTrue(osp.exists(osp.join(tmp_dir, 'vis', img_dir)))
+
+    def test_postprocess(self):
+        # return_datasample
+        img_path = 'tests/data/det_toy_dataset/imgs/test/img_1.jpg'
+        res = self.inferencer(img_path, return_datasamples=True)
+        self.assertTrue(is_type_list(res['predictions'], TextDetDataSample))
+
+        # dump predictions
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            res = self.inferencer(
+                img_path, print_result=True, out_dir=tmp_dir, save_pred=True)
+            dumped_res = mmengine.load(
+                osp.join(tmp_dir, 'preds', 'img_1.json'))
+            self.assert_prediction_equal(res['predictions'][0], dumped_res)
+
+    def test_pred2dict(self):
+        data_sample = TextDetDataSample()
+        data_sample.pred_instances = InstanceData()
+
+        data_sample.pred_instances.scores = np.array([0.9])
+        data_sample.pred_instances.polygons = [
+            np.array([0, 0, 0, 1, 1, 1, 1, 0])
+        ]
+        res = self.inferencer.pred2dict(data_sample)
+        self.assertListAlmostEqual(res['polygons'], [[0, 0, 0, 1, 1, 1, 1, 0]])
+        self.assertListAlmostEqual(res['scores'], [0.9])
+
+        data_sample.pred_instances.bboxes = np.array([[0, 0, 1, 1]])
+        data_sample.pred_instances.scores = torch.FloatTensor([0.9])
+        res = self.inferencer.pred2dict(data_sample)
+        self.assertListAlmostEqual(res['polygons'], [[0, 0, 0, 1, 1, 1, 1, 0]])
+        self.assertListAlmostEqual(res['bboxes'], [[0, 0, 1, 1]])
+        self.assertListAlmostEqual(res['scores'], [0.9])
+
+    def assertListAlmostEqual(self, list1, list2, places=7):
+        for i in range(len(list1)):
+            if isinstance(list1[i], list):
+                self.assertListAlmostEqual(list1[i], list2[i], places=places)
+            else:
+                self.assertAlmostEqual(list1[i], list2[i], places=places)
diff --git a/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_textrec_inferencer.py b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_textrec_inferencer.py
new file mode 100644
index 0000000000000000000000000000000000000000..1e89e4a9a31d6d3a1e4a929c32a4ae3836b2054a
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_apis/test_inferencers/test_textrec_inferencer.py
@@ -0,0 +1,108 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import random
+import tempfile
+from unittest import TestCase, mock
+
+import mmcv
+import mmengine
+import numpy as np
+import torch
+
+from mmocr.apis.inferencers import TextRecInferencer
+from mmocr.utils.check_argument import is_type_list
+from mmocr.utils.typing_utils import TextRecogDataSample
+
+
+class TestTextRecinferencer(TestCase):
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def setUp(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        # init from alias
+        self.inferencer = TextRecInferencer('CRNN')
+        seed = 1
+        random.seed(seed)
+        np.random.seed(seed)
+        torch.manual_seed(seed)
+
+    @mock.patch('mmengine.infer.infer._load_checkpoint')
+    def test_init(self, mock_load):
+        mock_load.side_effect = lambda *x, **y: None
+        # init from metafile
+        TextRecInferencer('crnn_mini-vgg_5e_mj')
+        # init from cfg
+        TextRecInferencer(
+            'configs/textrecog/crnn/crnn_mini-vgg_5e_mj.py',
+            'https://download.openmmlab.com/mmocr/textrecog/crnn/'
+            'crnn_mini-vgg_5e_mj/'
+            'crnn_mini-vgg_5e_mj_20220826_224120-8afbedbb.pth')
+
+    def assert_predictions_equal(self, preds1, preds2):
+        for pred1, pred2 in zip(preds1, preds2):
+            self.assert_prediction_equal(pred1, pred2)
+
+    def assert_prediction_equal(self, pred1, pred2):
+        self.assertEqual(pred1['text'], pred2['text'])
+        self.assertTrue(np.allclose(pred1['scores'], pred2['scores'], 0.1))
+
+    def test_call(self):
+        # single img
+        img_path = 'tests/data/rec_toy_dataset/imgs/1036169.jpg'
+        res_path = self.inferencer(img_path, return_vis=True)
+        # ndarray
+        img = mmcv.imread(img_path)
+        res_ndarray = self.inferencer(img, return_vis=True)
+        self.assert_predictions_equal(res_path['predictions'],
+                                      res_ndarray['predictions'])
+        self.assertTrue(
+            np.allclose(res_path['visualization'],
+                        res_ndarray['visualization']))
+
+        # multiple images
+        img_paths = [
+            'tests/data/rec_toy_dataset/imgs/1036169.jpg',
+            'tests/data/rec_toy_dataset/imgs/1058891.jpg'
+        ]
+        res_path = self.inferencer(img_paths, return_vis=True)
+        # list of ndarray
+        imgs = [mmcv.imread(p) for p in img_paths]
+        res_ndarray = self.inferencer(imgs, return_vis=True)
+        self.assert_predictions_equal(res_path['predictions'],
+                                      res_ndarray['predictions'])
+        for i in range(len(img_paths)):
+            self.assertTrue(
+                np.allclose(res_path['visualization'][i],
+                            res_ndarray['visualization'][i]))
+
+        # img dir, test different batch sizes
+        img_dir = 'tests/data/rec_toy_dataset/imgs'
+        res_bs3 = self.inferencer(img_dir, batch_size=3, return_vis=True)
+        self.assertIn('visualization', res_bs3)
+        self.assertIn('predictions', res_bs3)
+
+    def test_visualize(self):
+        img_paths = [
+            'tests/data/rec_toy_dataset/imgs/1036169.jpg',
+            'tests/data/rec_toy_dataset/imgs/1058891.jpg'
+        ]
+
+        # img_out_dir
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            self.inferencer(img_paths, out_dir=tmp_dir, save_vis=True)
+            for img_dir in ['1036169.jpg', '1058891.jpg']:
+                self.assertTrue(osp.exists(osp.join(tmp_dir, 'vis', img_dir)))
+
+    def test_postprocess(self):
+        # return_datasample
+        img_path = 'tests/data/rec_toy_dataset/imgs/1036169.jpg'
+        res = self.inferencer(img_path, return_datasamples=True)
+        self.assertTrue(is_type_list(res['predictions'], TextRecogDataSample))
+
+        # pred_out_file
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            res = self.inferencer(
+                img_path, print_result=True, out_dir=tmp_dir, save_pred=True)
+            dumped_res = mmengine.load(
+                osp.join(tmp_dir, 'preds', '1036169.json'))
+            self.assert_prediction_equal(res['predictions'][0], dumped_res)
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_dataset_wrapper.py b/mmocr-dev-1.x/tests/test_datasets/test_dataset_wrapper.py
new file mode 100644
index 0000000000000000000000000000000000000000..b9c4c2682ebd988258badcef364b6317309a827c
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_dataset_wrapper.py
@@ -0,0 +1,118 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+from copy import deepcopy
+from unittest import TestCase
+from unittest.mock import MagicMock
+
+from mmengine.registry import init_default_scope
+
+from mmocr.datasets import ConcatDataset, OCRDataset
+from mmocr.registry import TRANSFORMS
+
+
+class TestConcatDataset(TestCase):
+
+    @TRANSFORMS.register_module()
+    class MockTransform:
+
+        def __init__(self, return_value):
+            self.return_value = return_value
+
+        def __call__(self, *args, **kwargs):
+            return self.return_value
+
+    def setUp(self):
+
+        init_default_scope('mmocr')
+        dataset = OCRDataset
+
+        # create dataset_a
+        data_info = dict(filename='img_1.jpg', height=720, width=1280)
+        dataset.parse_data_info = MagicMock(return_value=data_info)
+
+        self.dataset_a = dataset(
+            data_root=osp.join(
+                osp.dirname(__file__), '../data/det_toy_dataset'),
+            data_prefix=dict(img_path='imgs'),
+            ann_file='textdet_test.json')
+
+        self.dataset_a_with_pipeline = dataset(
+            data_root=osp.join(
+                osp.dirname(__file__), '../data/det_toy_dataset'),
+            data_prefix=dict(img_path='imgs'),
+            ann_file='textdet_test.json',
+            pipeline=[dict(type='MockTransform', return_value=1)])
+
+        # create dataset_b
+        data_info = dict(filename='img_2.jpg', height=720, width=1280)
+        dataset.parse_data_info = MagicMock(return_value=data_info)
+        self.dataset_b = dataset(
+            data_root=osp.join(
+                osp.dirname(__file__), '../data/det_toy_dataset'),
+            data_prefix=dict(img_path='imgs'),
+            ann_file='textdet_test.json')
+        self.dataset_b_with_pipeline = dataset(
+            data_root=osp.join(
+                osp.dirname(__file__), '../data/det_toy_dataset'),
+            data_prefix=dict(img_path='imgs'),
+            ann_file='textdet_test.json',
+            pipeline=[dict(type='MockTransform', return_value=2)])
+
+    def test_init(self):
+        with self.assertRaises(TypeError):
+            ConcatDataset(datasets=[0])
+        with self.assertRaises(ValueError):
+            ConcatDataset(
+                datasets=[
+                    deepcopy(self.dataset_a_with_pipeline),
+                    deepcopy(self.dataset_b)
+                ],
+                pipeline=[dict(type='MockTransform', return_value=3)])
+
+        with self.assertRaises(ValueError):
+            ConcatDataset(
+                datasets=[
+                    deepcopy(self.dataset_a),
+                    deepcopy(self.dataset_b_with_pipeline)
+                ],
+                pipeline=[dict(type='MockTransform', return_value=3)])
+        with self.assertRaises(ValueError):
+            dataset_a = deepcopy(self.dataset_a)
+            dataset_b = OCRDataset(
+                metainfo=dict(dummy='dummy'),
+                data_root=osp.join(
+                    osp.dirname(__file__), '../data/det_toy_dataset'),
+                data_prefix=dict(img_path='imgs'),
+                ann_file='textdet_test.json')
+            ConcatDataset(datasets=[dataset_a, dataset_b])
+        # test lazy init
+        ConcatDataset(
+            datasets=[deepcopy(self.dataset_a),
+                      deepcopy(self.dataset_b)],
+            pipeline=[dict(type='MockTransform', return_value=3)],
+            lazy_init=True)
+
+    def test_getitem(self):
+        cat_datasets = ConcatDataset(
+            datasets=[deepcopy(self.dataset_a),
+                      deepcopy(self.dataset_b)],
+            pipeline=[dict(type='MockTransform', return_value=3)])
+        for datum in cat_datasets:
+            self.assertEqual(datum, 3)
+
+        cat_datasets = ConcatDataset(
+            datasets=[
+                deepcopy(self.dataset_a_with_pipeline),
+                deepcopy(self.dataset_b)
+            ],
+            pipeline=[dict(type='MockTransform', return_value=3)],
+            force_apply=True)
+        for datum in cat_datasets:
+            self.assertEqual(datum, 3)
+
+        cat_datasets = ConcatDataset(datasets=[
+            deepcopy(self.dataset_a_with_pipeline),
+            deepcopy(self.dataset_b_with_pipeline)
+        ])
+        self.assertEqual(cat_datasets[0], 1)
+        self.assertEqual(cat_datasets[-1], 2)
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_icdar_dataset.py b/mmocr-dev-1.x/tests/test_datasets/test_icdar_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..575c50619f9a1e48f4f58aba23de3eeba1e5165a
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_icdar_dataset.py
@@ -0,0 +1,145 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import mmengine
+
+from mmocr.datasets.icdar_dataset import IcdarDataset
+
+
+class TestIcdarDataset(TestCase):
+
+    def _create_dummy_icdar_json(self, json_name):
+        image_1 = {
+            'id': 0,
+            'width': 640,
+            'height': 640,
+            'file_name': 'fake_name.jpg',
+        }
+        image_2 = {
+            'id': 1,
+            'width': 640,
+            'height': 640,
+            'file_name': 'fake_name1.jpg',
+        }
+
+        annotation_1 = {
+            'id': 1,
+            'image_id': 0,
+            'category_id': 0,
+            'area': 400,
+            'bbox': [50, 60, 20, 20],
+            'iscrowd': 0,
+            'segmentation': [[50, 60, 70, 60, 70, 80, 50, 80]]
+        }
+
+        annotation_2 = {
+            'id': 2,
+            'image_id': 0,
+            'category_id': 0,
+            'area': 900,
+            'bbox': [100, 120, 30, 30],
+            'iscrowd': 0,
+            'segmentation': [[100, 120, 130, 120, 120, 150, 100, 150]]
+        }
+
+        annotation_3 = {
+            'id': 3,
+            'image_id': 0,
+            'category_id': 0,
+            'area': 1600,
+            'bbox': [150, 160, 40, 40],
+            'iscrowd': 1,
+            'segmentation': [[150, 160, 190, 160, 190, 200, 150, 200]]
+        }
+
+        annotation_4 = {
+            'id': 4,
+            'image_id': 0,
+            'category_id': 0,
+            'area': 10000,
+            'bbox': [250, 260, 100, 100],
+            'iscrowd': 1,
+            'segmentation': [[250, 260, 350, 260, 350, 360, 250, 360]]
+        }
+        annotation_5 = {
+            'id': 5,
+            'image_id': 1,
+            'category_id': 0,
+            'area': 10000,
+            'bbox': [250, 260, 100, 100],
+            'iscrowd': 1,
+            'segmentation': [[250, 260, 350, 260, 350, 360, 250, 360]]
+        }
+        annotation_6 = {
+            'id': 6,
+            'image_id': 1,
+            'category_id': 0,
+            'area': 0,
+            'bbox': [0, 0, 0, 0],
+            'iscrowd': 1,
+            'segmentation': [[250, 260, 350, 260, 350, 360, 250, 360]]
+        }
+        annotation_7 = {
+            'id': 7,
+            'image_id': 1,
+            'category_id': 2,
+            'area': 10000,
+            'bbox': [250, 260, 100, 100],
+            'iscrowd': 1,
+            'segmentation': [[250, 260, 350, 260, 350, 360, 250, 360]]
+        }
+        annotation_8 = {
+            'id': 8,
+            'image_id': 1,
+            'category_id': 0,
+            'area': 10000,
+            'bbox': [250, 260, 100, 100],
+            'iscrowd': 1,
+            'segmentation': [[250, 260, 350, 260, 350, 360, 250, 360]]
+        }
+
+        categories = [{
+            'id': 0,
+            'name': 'text',
+            'supercategory': 'text',
+        }]
+
+        fake_json = {
+            'images': [image_1, image_2],
+            'annotations': [
+                annotation_1, annotation_2, annotation_3, annotation_4,
+                annotation_5, annotation_6, annotation_7, annotation_8
+            ],
+            'categories':
+            categories
+        }
+        self.metainfo = dict(classes=('text'))
+        mmengine.dump(fake_json, json_name)
+
+    def test_icdar_dataset(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        # create dummy data
+        fake_json_file = osp.join(tmp_dir.name, 'fake_data.json')
+        self._create_dummy_icdar_json(fake_json_file)
+
+        # test initialization
+        dataset = IcdarDataset(
+            ann_file=fake_json_file,
+            data_prefix=dict(img_path='imgs'),
+            metainfo=self.metainfo,
+            pipeline=[])
+        self.assertEqual(dataset.metainfo['classes'], self.metainfo['classes'])
+        dataset.full_init()
+        self.assertEqual(len(dataset), 2)
+        self.assertEqual(len(dataset.load_data_list()), 2)
+
+        # test load_data_list
+        anno = dataset.load_data_list()[0]
+        self.assertEqual(len(anno['instances']), 4)
+        self.assertTrue('ignore' in anno['instances'][0])
+        self.assertTrue('bbox' in anno['instances'][0])
+        self.assertEqual(anno['instances'][0]['bbox_label'], 0)
+        self.assertTrue('polygon' in anno['instances'][0])
+        tmp_dir.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textdet_config_generator.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textdet_config_generator.py
new file mode 100644
index 0000000000000000000000000000000000000000..988e9a58a3fb52d375e5db5fc5f32e99dcd76d51
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textdet_config_generator.py
@@ -0,0 +1,59 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers import TextDetConfigGenerator
+
+
+class TestTextDetConfigGenerator(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def test_textdet_config_generator(self):
+        config_generator = TextDetConfigGenerator(
+            data_root=self.root.name,
+            dataset_name='dummy',
+            train_anns=[
+                dict(ann_file='textdet_train.json', dataset_postfix='')
+            ],
+            val_anns=[],
+            test_anns=[
+                dict(ann_file='textdet_test.json', dataset_postfix='fake')
+            ],
+            config_path=self.root.name,
+        )
+        cfg_path = osp.join(self.root.name, 'textdet', '_base_', 'datasets',
+                            'dummy.py')
+        config_generator()
+        self.assertTrue(osp.exists(cfg_path))
+        f = open(cfg_path, 'r')
+        lines = ''.join(f.readlines())
+
+        self.assertEquals(
+            lines, (f"dummy_textdet_data_root = '{self.root.name}'\n"
+                    '\n'
+                    'dummy_textdet_train = dict(\n'
+                    "    type='OCRDataset',\n"
+                    '    data_root=dummy_textdet_data_root,\n'
+                    "    ann_file='textdet_train.json',\n"
+                    '    filter_cfg=dict(filter_empty_gt=True, min_size=32),\n'
+                    '    pipeline=None)\n'
+                    '\n'
+                    'dummy_fake_textdet_test = dict(\n'
+                    "    type='OCRDataset',\n"
+                    '    data_root=dummy_textdet_data_root,\n'
+                    "    ann_file='textdet_test.json',\n"
+                    '    test_mode=True,\n'
+                    '    pipeline=None)\n'))
+        with self.assertRaises(ValueError):
+            TextDetConfigGenerator(
+                data_root=self.root.name,
+                dataset_name='dummy',
+                train_anns=[
+                    dict(ann_file='textdet_train.json', dataset_postfix='1'),
+                    dict(ann_file='textdet_train_1.json', dataset_postfix='1')
+                ],
+                config_path=self.root.name,
+            )
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textrecog_config_generator.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textrecog_config_generator.py
new file mode 100644
index 0000000000000000000000000000000000000000..7a5cc83d1e07164ce3e8acf67be51e149f998d02
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textrecog_config_generator.py
@@ -0,0 +1,59 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers import TextRecogConfigGenerator
+
+
+class TestTextRecogConfigGenerator(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def test_textrecog_config_generator(self):
+        config_generator = TextRecogConfigGenerator(
+            data_root=self.root.name,
+            dataset_name='dummy',
+            train_anns=[
+                dict(ann_file='textrecog_train.json', dataset_postfix='')
+            ],
+            val_anns=[],
+            test_anns=[
+                dict(ann_file='textrecog_test.json', dataset_postfix='fake')
+            ],
+            config_path=self.root.name,
+        )
+        cfg_path = osp.join(self.root.name, 'textrecog', '_base_', 'datasets',
+                            'dummy.py')
+        config_generator()
+        self.assertTrue(osp.exists(cfg_path))
+        f = open(cfg_path, 'r')
+        lines = ''.join(f.readlines())
+
+        self.assertEquals(lines,
+                          (f"dummy_textrecog_data_root = '{self.root.name}'\n"
+                           '\n'
+                           'dummy_textrecog_train = dict(\n'
+                           "    type='OCRDataset',\n"
+                           '    data_root=dummy_textrecog_data_root,\n'
+                           "    ann_file='textrecog_train.json',\n"
+                           '    pipeline=None)\n'
+                           '\n'
+                           'dummy_fake_textrecog_test = dict(\n'
+                           "    type='OCRDataset',\n"
+                           '    data_root=dummy_textrecog_data_root,\n'
+                           "    ann_file='textrecog_test.json',\n"
+                           '    test_mode=True,\n'
+                           '    pipeline=None)\n'))
+        with self.assertRaises(ValueError):
+            TextRecogConfigGenerator(
+                data_root=self.root.name,
+                dataset_name='dummy',
+                train_anns=[
+                    dict(ann_file='textrecog_train.json', dataset_postfix='1'),
+                    dict(
+                        ann_file='textrecog_train_1.json', dataset_postfix='1')
+                ],
+                config_path=self.root.name,
+            )
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textspotting_config_generator.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textspotting_config_generator.py
new file mode 100644
index 0000000000000000000000000000000000000000..cab434cfb78ca51a31a9e08bf72c4433358423cf
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_config_generators/test_textspotting_config_generator.py
@@ -0,0 +1,64 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers import TextSpottingConfigGenerator
+
+
+class TestTextSpottingConfigGenerator(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def test_textspotting_config_generator(self):
+        config_generator = TextSpottingConfigGenerator(
+            data_root=self.root.name,
+            dataset_name='dummy',
+            train_anns=[
+                dict(ann_file='textspotting_train.json', dataset_postfix='')
+            ],
+            val_anns=[],
+            test_anns=[
+                dict(
+                    ann_file='textspotting_test.json', dataset_postfix='fake')
+            ],
+            config_path=self.root.name,
+        )
+        cfg_path = osp.join(self.root.name, 'textspotting', '_base_',
+                            'datasets', 'dummy.py')
+        config_generator()
+        self.assertTrue(osp.exists(cfg_path))
+        f = open(cfg_path, 'r')
+        lines = ''.join(f.readlines())
+
+        self.assertEquals(
+            lines, (f"dummy_textspotting_data_root = '{self.root.name}'\n"
+                    '\n'
+                    'dummy_textspotting_train = dict(\n'
+                    "    type='OCRDataset',\n"
+                    '    data_root=dummy_textspotting_data_root,\n'
+                    "    ann_file='textspotting_train.json',\n"
+                    '    filter_cfg=dict(filter_empty_gt=True, min_size=32),\n'
+                    '    pipeline=None)\n'
+                    '\n'
+                    'dummy_fake_textspotting_test = dict(\n'
+                    "    type='OCRDataset',\n"
+                    '    data_root=dummy_textspotting_data_root,\n'
+                    "    ann_file='textspotting_test.json',\n"
+                    '    test_mode=True,\n'
+                    '    pipeline=None)\n'))
+        with self.assertRaises(ValueError):
+            TextSpottingConfigGenerator(
+                data_root=self.root.name,
+                dataset_name='dummy',
+                train_anns=[
+                    dict(
+                        ann_file='textspotting_train.json',
+                        dataset_postfix='1'),
+                    dict(
+                        ann_file='textspotting_train_1.json',
+                        dataset_postfix='1')
+                ],
+                config_path=self.root.name,
+            )
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_data_preparer.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_data_preparer.py
new file mode 100644
index 0000000000000000000000000000000000000000..59ee0af14ec43f45b87abcb259338da075d31fac
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_data_preparer.py
@@ -0,0 +1,60 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import unittest
+
+from mmengine import Config
+
+from mmocr.datasets.preparers import DatasetPreparer
+from mmocr.datasets.preparers.data_preparer import (CFG_GENERATORS,
+                                                    DATA_DUMPERS,
+                                                    DATA_GATHERERS,
+                                                    DATA_OBTAINERS,
+                                                    DATA_PACKERS, DATA_PARSERS)
+
+
+class Fake:
+
+    def __init__(self, *args, **kwargs):
+        pass
+
+    def __call__(self, *args, **kwargs):
+        return None, None
+
+
+DATA_OBTAINERS.register_module(module=Fake)
+DATA_GATHERERS.register_module(module=Fake)
+DATA_PARSERS.register_module(module=Fake)
+DATA_DUMPERS.register_module(module=Fake)
+DATA_PACKERS.register_module(module=Fake)
+CFG_GENERATORS.register_module(module=Fake)
+
+
+class TestDataPreparer(unittest.TestCase):
+
+    def _create_config(self):
+        cfg_path = 'config.py'
+        cfg = ''
+        cfg += "data_root = ''\n"
+        cfg += 'train_preparer=dict(\n'
+        cfg += '    obtainer=dict(type="Fake"),\n'
+        cfg += '    gatherer=dict(type="Fake"),\n'
+        cfg += '    parser=dict(type="Fake"),\n'
+        cfg += '    packer=dict(type="Fake"),\n'
+        cfg += '    dumper=dict(type="Fake"),\n'
+        cfg += ')\n'
+        cfg += 'test_preparer=dict(\n'
+        cfg += '    obtainer=dict(type="Fake"),\n'
+        cfg += ')\n'
+        cfg += 'cfg_generator=dict(type="Fake")\n'
+        cfg += f"delete = ['{cfg_path}']\n"
+
+        with open(cfg_path, 'w') as f:
+            f.write(cfg)
+        return cfg_path
+
+    def test_dataset_preparer(self):
+        cfg_path = self._create_config()
+        cfg = Config.fromfile(cfg_path)
+        preparer = DatasetPreparer.from_file(cfg)
+        preparer.run()
+        self.assertFalse(osp.exists(cfg_path))
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_dumpers/test_dumpers.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_dumpers/test_dumpers.py
new file mode 100644
index 0000000000000000000000000000000000000000..fe6a6118ebc66cb952230c23801d9b93c649c7b6
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_dumpers/test_dumpers.py
@@ -0,0 +1,38 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers.dumpers import (JsonDumper,
+                                              WildreceiptOpensetDumper)
+
+
+class TestDumpers(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def test_json_dumpers(self):
+        task, split = 'textdet', 'train'
+        fake_data = dict(
+            metainfo=dict(
+                dataset_type='TextDetDataset',
+                task_name='textdet',
+                category=[dict(id=0, name='text')]))
+
+        dumper = JsonDumper(task, split, self.root.name)
+        dumper.dump(fake_data)
+        with open(osp.join(self.root.name, f'{task}_{split}.json'), 'r') as f:
+            data = json.load(f)
+        self.assertEqual(data, fake_data)
+
+    def test_wildreceipt_dumper(self):
+        task, split = 'kie', 'train'
+        fake_data = ['test1', 'test2']
+
+        dumper = WildreceiptOpensetDumper(task, split, self.root.name)
+        dumper.dump(fake_data)
+        with open(osp.join(self.root.name, f'openset_{split}.txt'), 'r') as f:
+            data = f.read().splitlines()
+        self.assertEqual(data, fake_data)
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_gatherers/test_mono_gatherer.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_gatherers/test_mono_gatherer.py
new file mode 100644
index 0000000000000000000000000000000000000000..848184314cbdd72b99d43f758d231e4301c1590b
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_gatherers/test_mono_gatherer.py
@@ -0,0 +1,24 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import unittest
+
+from mmocr.datasets.preparers.gatherers import MonoGatherer
+
+
+class TestMonoGatherer(unittest.TestCase):
+
+    def test_mono_text_gatherer(self):
+        data_root = 'dummpy'
+        img_dir = 'dummy_img'
+        ann_dir = 'dummy_ann'
+        ann_name = 'dummy_ann.json'
+        split = 'train'
+        gatherer = MonoGatherer(
+            data_root=data_root,
+            img_dir=img_dir,
+            ann_dir=ann_dir,
+            ann_name=ann_name,
+            split=split)
+        gather_img_dir, ann_path = gatherer()
+        self.assertEqual(gather_img_dir, osp.join(data_root, img_dir))
+        self.assertEqual(ann_path, osp.join(data_root, ann_dir, ann_name))
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_gatherers/test_pair_gatherer.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_gatherers/test_pair_gatherer.py
new file mode 100644
index 0000000000000000000000000000000000000000..7a9d448bcdb4ed0e520b9ae9a9664b4ff25f0056
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_gatherers/test_pair_gatherer.py
@@ -0,0 +1,42 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+
+from mmocr.datasets.preparers.gatherers import PairGatherer
+
+
+class TestPairGatherer(unittest.TestCase):
+
+    def test_pair_text_gatherer(self):
+        root = tempfile.TemporaryDirectory()
+        data_root = root.name
+        img_dir = 'dummy_img'
+        ann_dir = 'dummy_ann'
+        split = 'train'
+        img = np.random.randint(0, 100, size=(100, 100, 3))
+        os.makedirs(osp.join(data_root, img_dir))
+        os.makedirs(osp.join(data_root, ann_dir))
+        for i in range(10):
+            cv2.imwrite(osp.join(data_root, img_dir, f'img_{i}.jpg'), img)
+            f = open(osp.join(data_root, ann_dir, f'img_{i}.txt'), 'w')
+            f.close()
+        f = open(osp.join(data_root, ann_dir, 'img_10.mmocr'), 'w')
+        f.close()
+        gatherer = PairGatherer(
+            data_root=data_root,
+            img_dir=img_dir,
+            ann_dir=ann_dir,
+            split=split,
+            img_suffixes=['.jpg'],
+            rule=[r'img_(\d+)\.([jJ][pP][gG])', r'img_\1.txt'])
+        img_list, ann_list = gatherer()
+        self.assertEqual(len(img_list), 10)
+        self.assertEqual(len(ann_list), 10)
+        self.assertNotIn(
+            osp.join(data_root, ann_dir, 'img_10.mmocr'), ann_list)
+        root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textdet_packer.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textdet_packer.py
new file mode 100644
index 0000000000000000000000000000000000000000..5e70d87de95f6057513b6f583af83395a192d6a9
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textdet_packer.py
@@ -0,0 +1,62 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+
+from mmocr.datasets.preparers import TextDetPacker
+
+
+class TestTextDetPacker(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+        img = np.random.randint(0, 255, (30, 20, 3), dtype=np.uint8)
+        cv2.imwrite(osp.join(self.root.name, 'test_img.jpg'), img)
+        self.instance = [{
+            'poly': [0, 0, 0, 10, 10, 20, 20, 0],
+            'ignore': False
+        }, {
+            'box': [0, 0, 10, 20],
+            'ignore': False
+        }]
+        self.img_path = osp.join(self.root.name, 'test_img.jpg')
+        self.sample = (self.img_path, self.instance)
+
+    def test_pack_instance(self):
+        packer = TextDetPacker(data_root=self.root.name, split='test')
+        instance = packer.pack_instance(self.sample)
+        self.assertEquals(instance['img_path'], 'test_img.jpg')
+        self.assertEquals(instance['height'], 30)
+        self.assertEquals(instance['width'], 20)
+        self.assertEquals(instance['instances'][0]['polygon'],
+                          [0, 0, 0, 10, 10, 20, 20, 0])
+        self.assertEquals(instance['instances'][0]['bbox'],
+                          [float(x) for x in [0, 0, 20, 20]])
+        self.assertEquals(instance['instances'][0]['bbox_label'], 0)
+        self.assertEquals(instance['instances'][0]['ignore'], False)
+        self.assertEquals(instance['instances'][1]['polygon'],
+                          [0.0, 0.0, 10.0, 0.0, 10.0, 20.0, 0.0, 20.0])
+        self.assertEquals(instance['instances'][1]['bbox'],
+                          [float(x) for x in [0, 0, 10, 20]])
+        self.assertEquals(instance['instances'][1]['bbox_label'], 0)
+        self.assertEquals(instance['instances'][1]['ignore'], False)
+
+    def test_add_meta(self):
+        packer = TextDetPacker(data_root=self.root.name, split='test')
+        instance = packer.pack_instance(self.sample)
+        meta = packer.add_meta(instance)
+        self.assertDictEqual(
+            meta['metainfo'], {
+                'dataset_type': 'TextDetDataset',
+                'task_name': 'textdet',
+                'category': [{
+                    'id': 0,
+                    'name': 'text'
+                }]
+            })
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textrecog_packer.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textrecog_packer.py
new file mode 100644
index 0000000000000000000000000000000000000000..5e875af323f37913df6d0db5d523bdc348b8313d
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textrecog_packer.py
@@ -0,0 +1,76 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+
+from mmocr.datasets.preparers import TextRecogCropPacker, TextRecogPacker
+
+
+class TestTextRecogPacker(unittest.TestCase):
+
+    def test_pack_instance(self):
+
+        packer = TextRecogPacker(data_root='data/test/', split='test')
+        sample = ('data/test/test.jpg', 'text')
+        results = packer.pack_instance(sample)
+        self.assertDictEqual(
+            results, dict(img_path='test.jpg', instances=[dict(text='text')]))
+
+    def test_add_meta(self):
+        packer = TextRecogPacker(data_root='', split='test')
+        sample = [dict(img_path='test.jpg', instances=[dict(text='text')])]
+        results = packer.add_meta(sample)
+        self.assertDictEqual(
+            results,
+            dict(
+                metainfo=dict(
+                    dataset_type='TextRecogDataset', task_name='textrecog'),
+                data_list=sample))
+
+
+class TestTextRecogCropPacker(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+        img = np.random.randint(0, 255, (30, 40, 3), dtype=np.uint8)
+        cv2.imwrite(osp.join(self.root.name, 'test_img.jpg'), img)
+        self.instance = [{
+            'poly': [0, 0, 0, 10, 10, 20, 20, 0],
+            'ignore': False,
+            'text': 'text1'
+        }, {
+            'box': [0, 0, 10, 20],
+            'ignore': False,
+            'text': 'text2'
+        }]
+        self.img_path = osp.join(self.root.name, 'test_img.jpg')
+        self.sample = (self.img_path, self.instance)
+
+    def test_pack_instance(self):
+        packer = TextRecogCropPacker(data_root=self.root.name, split='test')
+        instance = packer.pack_instance(self.sample)
+        self.assertListEqual(instance, [
+            dict(
+                img_path=osp.join('textrecog_imgs', 'test', 'test_img_0.jpg'),
+                instances=[dict(text='text1')]),
+            dict(
+                img_path=osp.join('textrecog_imgs', 'test', 'test_img_1.jpg'),
+                instances=[dict(text='text2')])
+        ])
+
+    def test_add_meta(self):
+        packer = TextRecogCropPacker(data_root=self.root.name, split='test')
+        instance = packer.pack_instance(self.sample)
+        results = packer.add_meta([instance])
+        self.assertDictEqual(
+            results,
+            dict(
+                metainfo=dict(
+                    dataset_type='TextRecogDataset', task_name='textrecog'),
+                data_list=instance))
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textspotting_packer.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textspotting_packer.py
new file mode 100644
index 0000000000000000000000000000000000000000..e3d4a85d02655916a50eef2354dedf4935726073
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_packers/test_textspotting_packer.py
@@ -0,0 +1,69 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+
+from mmocr.datasets.preparers import TextSpottingPacker
+
+
+class TestTextSpottingPacker(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+        img = np.random.randint(0, 255, (30, 20, 3), dtype=np.uint8)
+        cv2.imwrite(osp.join(self.root.name, 'test_img.jpg'), img)
+        self.instance = [{
+            'poly': [0, 0, 0, 10, 10, 20, 20, 0],
+            'ignore': False,
+            'text': 'text1'
+        }, {
+            'box': [0, 0, 10, 20],
+            'ignore': False,
+            'text': 'text2'
+        }]
+        self.img_path = osp.join(self.root.name, 'test_img.jpg')
+        self.sample = (self.img_path, self.instance)
+
+    def test_pack_instance(self):
+        packer = TextSpottingPacker(data_root=self.root.name, split='test')
+        instance = packer.pack_instance(self.sample)
+        self.assertEquals(instance['img_path'], 'test_img.jpg')
+        self.assertEquals(instance['height'], 30)
+        self.assertEquals(instance['width'], 20)
+        self.assertEquals(instance['instances'][0]['polygon'],
+                          [0, 0, 0, 10, 10, 20, 20, 0])
+        self.assertEquals(instance['instances'][0]['bbox'],
+                          [float(x) for x in [0, 0, 20, 20]])
+        self.assertEquals(instance['instances'][0]['bbox_label'], 0)
+        self.assertEquals(instance['instances'][0]['ignore'], False)
+        self.assertEquals(instance['instances'][0]['text'], 'text1')
+        self.assertEquals(instance['instances'][1]['polygon'],
+                          [0.0, 0.0, 10.0, 0.0, 10.0, 20.0, 0.0, 20.0])
+        self.assertEquals(instance['instances'][1]['bbox'],
+                          [float(x) for x in [0, 0, 10, 20]])
+        self.assertEquals(instance['instances'][1]['bbox_label'], 0)
+        self.assertEquals(instance['instances'][1]['ignore'], False)
+        self.assertEquals(instance['instances'][1]['text'], 'text2')
+
+    def test_add_meta(self):
+        packer = TextSpottingPacker(data_root=self.root.name, split='test')
+        instance = packer.pack_instance(self.sample)
+        meta = packer.add_meta(instance)
+        self.assertDictEqual(
+            meta, {
+                'metainfo': {
+                    'dataset_type': 'TextSpottingDataset',
+                    'task_name': 'textspotting',
+                    'category': [{
+                        'id': 0,
+                        'name': 'text'
+                    }]
+                },
+                'data_list': instance
+            })
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_ctw1500_parser.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_ctw1500_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..c6d5d52e87b68e7b01cbec1a3eaa62443f6fd078
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_ctw1500_parser.py
@@ -0,0 +1,72 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers.parsers import CTW1500AnnParser
+from mmocr.utils import list_to_file
+
+
+class TestCTW1500AnnParser(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def _create_dummy_ctw1500_det(self):
+        fake_train_anno = [
+            '<Annotations>',
+            ' <image file="0200.jpg">',
+            '   <box height="197" left="131" top="49" width="399">',
+            '     <label>OLATHE</label>',
+            '     <segs>131,58,208,49,279,56,346,76,412,101,473,141,530,192,510,246,458,210,405,175,350,151,291,137,228,133,165,134</segs>',  # noqa: E501
+            '     <pts x="183" y="95" />',
+            '     <pts x="251" y="89" />',
+            '     <pts x="322" y="107" />',
+            '     <pts x="383" y="124" />',
+            '     <pts x="441" y="161" />',
+            '     <pts x="493" y="201" />',
+            '   </box>',
+            ' </image>',
+            '</Annotations>',
+        ]
+        train_ann_file = osp.join(self.root.name, 'ctw1500_train.xml')
+        list_to_file(train_ann_file, fake_train_anno)
+
+        fake_test_anno = [
+            '48,84,61,79,75,73,88,68,102,74,116,79,130,84,135,73,119,67,104,60,89,56,74,61,59,67,45,73,#######',  # noqa: E501
+            '51,137,58,137,66,137,74,137,82,137,90,137,98,137,98,119,90,119,82,119,74,119,66,119,58,119,50,119,####E-313',  # noqa: E501
+            '41,155,49,155,57,155,65,155,73,155,81,155,89,155,87,136,79,136,71,136,64,136,56,136,48,136,41,137,#######',  # noqa: E501
+            '41,193,57,193,74,194,90,194,107,195,123,195,140,196,146,168,128,167,110,167,92,167,74,166,56,166,39,166,####F.D.N.Y.',  # noqa: E501
+        ]
+        test_ann_file = osp.join(self.root.name, 'ctw1500_test.txt')
+        list_to_file(test_ann_file, fake_test_anno)
+        return (osp.join(self.root.name,
+                         'ctw1500.jpg'), train_ann_file, test_ann_file)
+
+    def test_textdet_parsers(self):
+        parser = CTW1500AnnParser(split='train')
+        img_path, train_file, test_file = self._create_dummy_ctw1500_det()
+        img_path, instances = parser.parse_file(img_path, train_file)
+        self.assertEqual(img_path, osp.join(self.root.name, 'ctw1500.jpg'))
+        self.assertEqual(len(instances), 1)
+        self.assertEqual(instances[0]['text'], 'OLATHE')
+        self.assertEqual(instances[0]['poly'], [
+            131, 58, 208, 49, 279, 56, 346, 76, 412, 101, 473, 141, 530, 192,
+            510, 246, 458, 210, 405, 175, 350, 151, 291, 137, 228, 133, 165,
+            134
+        ])
+        self.assertEqual(instances[0]['ignore'], False)
+
+        parser = CTW1500AnnParser(split='test')
+        img_path, instances = parser.parse_file(img_path, test_file)
+        self.assertEqual(img_path, osp.join(self.root.name, 'ctw1500.jpg'))
+        self.assertEqual(len(instances), 4)
+        self.assertEqual(instances[0]['ignore'], True)
+        self.assertEqual(instances[1]['text'], 'E-313')
+        self.assertEqual(instances[3]['poly'], [
+            41, 193, 57, 193, 74, 194, 90, 194, 107, 195, 123, 195, 140, 196,
+            146, 168, 128, 167, 110, 167, 92, 167, 74, 166, 56, 166, 39, 166
+        ])
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_funsd_parser.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_funsd_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..078a0e84747c8cbab0f08aecb1a5598456202d58
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_funsd_parser.py
@@ -0,0 +1,56 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers import FUNSDTextDetAnnParser
+
+
+class TestFUNSDTextDetAnnParser(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def _create_fake_sample(self):
+        fake_sample = {
+            'form': [{
+                'box': [91, 279, 123, 294],
+                'text': 'Date:',
+                'label': 'question',
+                'words': [{
+                    'box': [91, 279, 123, 294],
+                    'text': 'Date:'
+                }],
+                'linking': [[0, 16]],
+                'id': 0
+            }, {
+                'box': [92, 310, 130, 324],
+                'text': 'From:',
+                'label': 'question',
+                'words': [{
+                    'box': [92, 310, 130, 324],
+                    'text': ''
+                }],
+                'linking': [[1, 22]],
+                'id': 1
+            }]
+        }
+        ann_path = osp.join(self.root.name, 'funsd.json')
+        with open(ann_path, 'w') as f:
+            json.dump(fake_sample, f)
+        return ann_path
+
+    def test_textdet_parsers(self):
+        ann_path = self._create_fake_sample()
+        parser = FUNSDTextDetAnnParser(split='train')
+        _, instances = parser.parse_file('fake.jpg', ann_path)
+        self.assertEqual(len(instances), 2)
+        self.assertEqual(instances[0]['text'], 'Date:')
+        self.assertEqual(instances[0]['ignore'], False)
+        self.assertEqual(instances[1]['ignore'], True)
+        self.assertListEqual(instances[0]['poly'],
+                             [91, 279, 123, 279, 123, 294, 91, 294])
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_icdar_txt_parsers.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_icdar_txt_parsers.py
new file mode 100644
index 0000000000000000000000000000000000000000..edcdfba26783c2dd1689d777cc5b025382c71495
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_icdar_txt_parsers.py
@@ -0,0 +1,62 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers.parsers.icdar_txt_parser import (
+    ICDARTxtTextDetAnnParser, ICDARTxtTextRecogAnnParser)
+from mmocr.utils import list_to_file
+
+
+class TestIC15Parsers(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def _create_dummy_ic15_det(self):
+        fake_anno = [
+            '377,117,463,117,465,130,378,130,Genaxis Theatre',
+            '493,115,519,115,519,131,493,131,[06]',
+            '374,155,409,155,409,170,374,170,###',
+            '374,155,409,155,409,170,374,170,100,000', ' '
+        ]
+        ann_file = osp.join(self.root.name, 'ic15_det.txt')
+        list_to_file(ann_file, fake_anno)
+        return (osp.join(self.root.name, 'ic15_det.jpg'), ann_file)
+
+    def _create_dummy_ic15_recog(self):
+        fake_anno = [
+            'word_1.png, "Genaxis Theatre"', 'word_2.png, "[06]"',
+            'word_3.png, "62-03"', 'word_4.png, "62-,03"', ''
+        ]
+        ann_file = osp.join(self.root.name, 'ic15_recog.txt')
+        list_to_file(ann_file, fake_anno)
+        return ann_file
+
+    def test_textdet_parsers(self):
+        file = self._create_dummy_ic15_det()
+        parser = ICDARTxtTextDetAnnParser(split='train')
+
+        img, instances = parser.parse_file(*file)
+        self.assertEqual(img, file[0])
+        self.assertEqual(len(instances), 4)
+        self.assertIn('poly', instances[0])
+        self.assertIn('text', instances[0])
+        self.assertIn('ignore', instances[0])
+        self.assertEqual(instances[0]['text'], 'Genaxis Theatre')
+        self.assertEqual(instances[2]['ignore'], True)
+        self.assertEqual(instances[3]['text'], '100,000')
+
+    def test_textrecog_parsers(self):
+        parser = ICDARTxtTextRecogAnnParser(split='train')
+        file = self._create_dummy_ic15_recog()
+        samples = parser.parse_files(self.root.name, file)
+        self.assertEqual(len(samples), 4)
+        img, text = samples[0]
+        self.assertEqual(img, osp.join(self.root.name, 'word_1.png'))
+        self.assertEqual(text, 'Genaxis Theatre')
+        img, text = samples[3]
+        self.assertEqual(text, '62-,03')
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_naf_parser.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_naf_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..2d70ff20771fc914847ed6d9e19794cb6b36bb8b
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_naf_parser.py
@@ -0,0 +1,81 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers import NAFAnnParser
+
+
+class TestNAFAnnParser(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def _create_fake_sample(self):
+        fake_sample = {
+            'fieldBBs': [{
+                'poly_points': [[1357, 322], [1636, 324], [1636, 402],
+                                [1357, 400]],
+                'type':
+                'field',
+                'id':
+                'f0',
+                'isBlank':
+                1
+            }, {
+                'poly_points': [[1831, 352], [1908, 353], [1908, 427],
+                                [1830, 427]],
+                'type':
+                'blank',
+                'id':
+                'f1',
+                'isBlank':
+                1
+            }],
+            'textBBs': [{
+                'poly_points': [[1388, 80], [2003, 82], [2003, 133],
+                                [1388, 132]],
+                'type':
+                'text',
+                'id':
+                't0'
+            }, {
+                'poly_points': [[1065, 366], [1320, 366], [1320, 413],
+                                [1065, 412]],
+                'type':
+                'text',
+                'id':
+                't1'
+            }],
+            'imageFilename':
+            '004173988_00005.jpg',
+            'transcriptions': {
+                'f0': '7/24',
+                'f1': '9',
+                't0': 'REGISTRY RETURN RECEIPT.',
+                't1': 'Date of delivery',
+            }
+        }
+        ann_path = osp.join(self.root.name, 'naf.json')
+        with open(ann_path, 'w') as f:
+            json.dump(fake_sample, f)
+        return ann_path
+
+    def test_parsers(self):
+        ann_path = self._create_fake_sample()
+        parser = NAFAnnParser(split='train')
+        _, instances = parser.parse_file('fake.jpg', ann_path)
+        self.assertEqual(len(instances), 3)
+        self.assertEqual(instances[0]['ignore'], False)
+        self.assertEqual(instances[1]['ignore'], False)
+        self.assertListEqual(instances[2]['poly'],
+                             [1357, 322, 1636, 324, 1636, 402, 1357, 400])
+
+        parser = NAFAnnParser(split='train', det=False)
+        _, instances = parser.parse_file('fake.jpg', ann_path)
+        self.assertEqual(len(instances), 2)
+        self.assertEqual(instances[0]['text'], '7/24')
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_sroie_parser.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_sroie_parser.py
new file mode 100644
index 0000000000000000000000000000000000000000..93c0bc362aff883e023ebc2c9f0c71aa1f344472
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_sroie_parser.py
@@ -0,0 +1,43 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers import SROIETextDetAnnParser
+from mmocr.utils import list_to_file
+
+
+class TestSROIETextDetAnnParser(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def _create_dummy_sroie_det(self):
+        fake_anno = [
+            '114,54,326,54,326,92,114,92,TAN CHAY YEE',
+            '60,119,300,119,300,136,60,136,###',
+            '100,139,267,139,267,162,100,162,ROC NO: 538358-H',
+            '83,163,277,163,277,183,83,183,NO 2 & 4, JALAN BAYU 4,',
+        ]
+        ann_file = osp.join(self.root.name, 'sroie_det.txt')
+        list_to_file(ann_file, fake_anno)
+        return (osp.join(self.root.name, 'sroie_det.jpg'), ann_file)
+
+    def test_textdet_parsers(self):
+        file = self._create_dummy_sroie_det()
+        parser = SROIETextDetAnnParser(split='train')
+
+        img, instances = parser.parse_file(*file)
+        self.assertEqual(img, file[0])
+        self.assertEqual(len(instances), 4)
+        self.assertIn('poly', instances[0])
+        self.assertIn('text', instances[0])
+        self.assertIn('ignore', instances[0])
+        self.assertEqual(instances[0]['text'], 'TAN CHAY YEE')
+        self.assertEqual(instances[1]['ignore'], True)
+        self.assertEqual(instances[3]['text'], 'NO 2 & 4, JALAN BAYU 4,')
+        self.assertListEqual(instances[2]['poly'],
+                             [100, 139, 267, 139, 267, 162, 100, 162])
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_svt_parsers.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_svt_parsers.py
new file mode 100644
index 0000000000000000000000000000000000000000..1f7ddb659660b635e06733015ac4f50c9648832d
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_svt_parsers.py
@@ -0,0 +1,55 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers.parsers.svt_parser import SVTTextDetAnnParser
+from mmocr.utils import list_to_file
+
+
+class TestSVTParsers(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def _create_dummy_svt_det(self):
+        fake_anno = [
+            '<?xml version="1.0" encoding="utf-8"?>',
+            '<tagset>',
+            '   <image>',
+            '      <imageName>img/test.jpg</imageName>',
+            '      <Resolution x="1280" y="880"/>',
+            '      <taggedRectangles>',
+            '         <taggedRectangle height="75" width="236" x="375" y="253">',  # noqa: E501
+            '            <tag>LIVING</tag>',
+            '         </taggedRectangle>',
+            '         <taggedRectangle height="76" width="175" x="639" y="272">',  # noqa: E501
+            '            <tag>ROOM</tag>',
+            '         </taggedRectangle>',
+            '         <taggedRectangle height="87" width="281" x="839" y="283">',  # noqa: E501
+            '            <tag>THEATERS</tag>',
+            '         </taggedRectangle>',
+            '      </taggedRectangles>',
+            '   </image>',
+            '</tagset>',
+        ]
+        ann_file = osp.join(self.root.name, 'svt_det.xml')
+        list_to_file(ann_file, fake_anno)
+        return ann_file
+
+    def test_textdet_parsers(self):
+        parser = SVTTextDetAnnParser(split='train')
+        file = self._create_dummy_svt_det()
+        samples = parser.parse_files(self.root.name, file)
+        self.assertEqual(len(samples), 1)
+        self.assertEqual(samples[0][0], osp.join(self.root.name, 'test.jpg'))
+        self.assertEqual(len(samples[0][1]), 3)
+        self.assertEqual(samples[0][1][0]['text'], 'living')
+        self.assertEqual(samples[0][1][1]['text'], 'room')
+        self.assertEqual(samples[0][1][2]['text'], 'theaters')
+        self.assertEqual(samples[0][1][0]['poly'],
+                         [375, 253, 611, 253, 611, 328, 375, 328])
+        self.assertEqual(samples[0][1][0]['ignore'], False)
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_tt_parsers.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_tt_parsers.py
new file mode 100644
index 0000000000000000000000000000000000000000..5f933e04337ca3404a27c2b25a650004fc1d1af0
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_tt_parsers.py
@@ -0,0 +1,39 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers.parsers.totaltext_parser import \
+    TotaltextTextDetAnnParser
+from mmocr.utils import list_to_file
+
+
+class TestTTParsers(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+
+    def _create_dummy_tt_det(self):
+        fake_anno = [
+            "x: [[ 53 120 121  56]], y: [[446 443 456 458]], ornt: [u'h'], transcriptions: [u'PERUNDING']",  # noqa: E501
+            "x: [[123 165 166 125]], y: [[443 440 453 455]], ornt: [u'h'], transcriptions: [u'PENILAI']",  # noqa: E501
+            "x: [[168 179 179 167]], y: [[439 439 452 453]], ornt: [u'#'], transcriptions: [u'#']",  # noqa: E501
+        ]
+        ann_file = osp.join(self.root.name, 'tt_det.txt')
+        list_to_file(ann_file, fake_anno)
+        return (osp.join(self.root.name, 'tt_det.jpg'), ann_file)
+
+    def test_textdet_parsers(self):
+        parser = TotaltextTextDetAnnParser(split='train')
+        file = self._create_dummy_tt_det()
+        img, instances = parser.parse_file(*file)
+        self.assertEqual(img, file[0])
+        self.assertEqual(len(instances), 3)
+        self.assertIn('poly', instances[0])
+        self.assertIn('text', instances[0])
+        self.assertIn('ignore', instances[0])
+        self.assertEqual(instances[0]['text'], 'PERUNDING')
+        self.assertEqual(instances[2]['ignore'], True)
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_wildreceipt_parsers.py b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_wildreceipt_parsers.py
new file mode 100644
index 0000000000000000000000000000000000000000..045333d453f248ffdb0b06ef48dce3f1bea47eff
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_preparers/test_parsers/test_wildreceipt_parsers.py
@@ -0,0 +1,60 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os.path as osp
+import tempfile
+import unittest
+
+from mmocr.datasets.preparers.parsers.wildreceipt_parser import (
+    WildreceiptKIEAnnParser, WildreceiptTextDetAnnParser)
+from mmocr.utils import list_to_file
+
+
+class TestWildReceiptParsers(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.root = tempfile.TemporaryDirectory()
+        fake_sample = dict(
+            file_name='test.jpg',
+            height=100,
+            width=100,
+            annotations=[
+                dict(
+                    box=[
+                        550.0, 190.0, 937.0, 190.0, 937.0, 104.0, 550.0, 104.0
+                    ],
+                    text='test',
+                    label=1,
+                ),
+                dict(
+                    box=[
+                        1048.0, 211.0, 1074.0, 211.0, 1074.0, 196.0, 1048.0,
+                        196.0
+                    ],
+                    text='ATOREMGRTOMMILAZZO',
+                    label=0,
+                )
+            ])
+        fake_sample = [json.dumps(fake_sample)]
+        self.anno = osp.join(self.root.name, 'wildreceipt.txt')
+        list_to_file(self.anno, fake_sample)
+
+    def test_textdet_parsers(self):
+        parser = WildreceiptTextDetAnnParser(split='train')
+        samples = parser.parse_files(self.root.name, self.anno)
+        self.assertEqual(len(samples), 1)
+        self.assertEqual(osp.basename(samples[0][0]), 'test.jpg')
+        instances = samples[0][1]
+        self.assertEqual(len(instances), 2)
+        self.assertIn('poly', instances[0])
+        self.assertIn('text', instances[0])
+        self.assertIn('ignore', instances[0])
+        self.assertEqual(instances[0]['text'], 'test')
+        self.assertEqual(instances[1]['ignore'], True)
+
+    def test_kie_parsers(self):
+        parser = WildreceiptKIEAnnParser(split='train')
+        samples = parser.parse_files(self.root.name, self.anno)
+        self.assertEqual(len(samples), 1)
+
+    def tearDown(self) -> None:
+        self.root.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_recog_lmdb_dataset.py b/mmocr-dev-1.x/tests/test_datasets/test_recog_lmdb_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..aa06db5b4ebac9fc57d8edf6dea0dea89065175d
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_recog_lmdb_dataset.py
@@ -0,0 +1,20 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+from mmocr.datasets import RecogLMDBDataset
+
+
+class TestRecogLMDBDataset(TestCase):
+
+    def test_label_and_image_dataset(self):
+
+        # test initialization
+        dataset = RecogLMDBDataset(
+            ann_file='tests/data/rec_toy_dataset/imgs.lmdb', pipeline=[])
+        dataset.full_init()
+        self.assertEqual(len(dataset), 10)
+        self.assertEqual(len(dataset.load_data_list()), 10)
+        self.assertEqual(dataset[0]['img'].shape, (26, 67, 3))
+        self.assertEqual(dataset[0]['instances'][0]['text'], 'GRAND')
+        self.assertEqual(dataset[1]['img'].shape, (17, 37, 3))
+        self.assertEqual(dataset[1]['instances'][0]['text'], 'HOTEL')
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_recog_text_dataset.py b/mmocr-dev-1.x/tests/test_datasets/test_recog_text_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..f9550d17a7be038b9654910a2fbf05c85d1aa978
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_recog_text_dataset.py
@@ -0,0 +1,51 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+from mmocr.datasets import RecogTextDataset
+
+
+class TestRecogTextDataset(TestCase):
+
+    def test_txt_dataset(self):
+
+        # test initialization
+        dataset = RecogTextDataset(
+            ann_file='tests/data/rec_toy_dataset/old_label.txt',
+            data_prefix=dict(img_path='imgs'),
+            parser_cfg=dict(
+                type='LineStrParser',
+                keys=['filename', 'text'],
+                keys_idx=[0, 1]),
+            pipeline=[])
+        dataset.full_init()
+        self.assertEqual(len(dataset), 10)
+        self.assertEqual(len(dataset.load_data_list()), 10)
+
+        # test load_data_list
+        anno = dataset.load_data_list()
+        self.assertIn(anno[0]['img_path'],
+                      ['imgs/1223731.jpg', 'imgs\\1223731.jpg'])
+        self.assertEqual(anno[0]['instances'][0]['text'], 'GRAND')
+        self.assertIn(anno[1]['img_path'],
+                      ['imgs/1223733.jpg', 'imgs\\1223733.jpg'])
+
+        self.assertEqual(anno[1]['instances'][0]['text'], 'HOTEL')
+
+    def test_jsonl_dataset(self):
+        dataset = RecogTextDataset(
+            ann_file='tests/data/rec_toy_dataset/old_label.jsonl',
+            data_prefix=dict(img_path='imgs'),
+            parser_cfg=dict(type='LineJsonParser', keys=['filename', 'text']),
+            pipeline=[])
+        dataset.full_init()
+        self.assertEqual(len(dataset), 10)
+        self.assertEqual(len(dataset.load_data_list()), 10)
+
+        # test load_data_list
+        anno = dataset.load_data_list()
+        self.assertIn(anno[0]['img_path'],
+                      ['imgs/1223731.jpg', 'imgs\\1223731.jpg'])
+        self.assertEqual(anno[0]['instances'][0]['text'], 'GRAND')
+        self.assertIn(anno[1]['img_path'],
+                      ['imgs/1223733.jpg', 'imgs\\1223733.jpg'])
+        self.assertEqual(anno[1]['instances'][0]['text'], 'HOTEL')
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_samplers/test_batch_aug.py b/mmocr-dev-1.x/tests/test_datasets/test_samplers/test_batch_aug.py
new file mode 100644
index 0000000000000000000000000000000000000000..1c9da5812182269318b5c4f0ee7702a778754de4
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_samplers/test_batch_aug.py
@@ -0,0 +1,85 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+from unittest import TestCase
+from unittest.mock import patch
+
+import torch
+from mmengine.logging import MMLogger
+
+from mmocr.datasets import BatchAugSampler
+
+file = 'mmocr.datasets.samplers.batch_aug.'
+
+
+class MockDist:
+
+    def __init__(self, dist_info=(0, 1), seed=7):
+        self.dist_info = dist_info
+        self.seed = seed
+
+    def get_dist_info(self):
+        return self.dist_info
+
+    def sync_random_seed(self):
+        return self.seed
+
+    def is_main_process(self):
+        return self.dist_info[0] == 0
+
+
+class TestBatchAugSampler(TestCase):
+
+    def setUp(self):
+        self.data_length = 100
+        self.dataset = list(range(self.data_length))
+
+    @patch(file + 'get_dist_info', return_value=(0, 1))
+    def test_non_dist(self, mock):
+        sampler = BatchAugSampler(self.dataset, num_repeats=3, shuffle=False)
+        self.assertEqual(sampler.world_size, 1)
+        self.assertEqual(sampler.rank, 0)
+        self.assertEqual(sampler.total_size, self.data_length * 3)
+        self.assertEqual(sampler.num_samples, self.data_length * 3)
+        indices = [x for x in range(self.data_length) for _ in range(3)]
+        self.assertEqual(list(sampler), indices)
+
+    @patch(file + 'get_dist_info', return_value=(2, 3))
+    def test_dist(self, mock):
+        sampler = BatchAugSampler(self.dataset, num_repeats=3, shuffle=False)
+        self.assertEqual(sampler.world_size, 3)
+        self.assertEqual(sampler.rank, 2)
+        self.assertEqual(sampler.num_samples, self.data_length)
+        self.assertEqual(sampler.total_size, self.data_length * 3)
+
+        logger = MMLogger.get_current_instance()
+        with patch.object(logger, 'warning') as mock_log:
+            sampler = BatchAugSampler(self.dataset, shuffle=False)
+            mock_log.assert_not_called()
+
+    @patch(file + 'get_dist_info', return_value=(0, 1))
+    @patch(file + 'sync_random_seed', return_value=7)
+    def test_shuffle(self, mock1, mock2):
+        # test seed=None
+        sampler = BatchAugSampler(self.dataset, seed=None)
+        self.assertEqual(sampler.seed, 7)
+
+        # test random seed
+        sampler = BatchAugSampler(self.dataset, shuffle=True, seed=0)
+        sampler.set_epoch(10)
+        g = torch.Generator()
+        g.manual_seed(10)
+        indices = [
+            x for x in torch.randperm(len(self.dataset), generator=g)
+            for _ in range(3)
+        ]
+        self.assertEqual(list(sampler), indices)
+
+        sampler = BatchAugSampler(self.dataset, shuffle=True, seed=42)
+        sampler.set_epoch(10)
+        g = torch.Generator()
+        g.manual_seed(42 + 10)
+        indices = [
+            x for x in torch.randperm(len(self.dataset), generator=g)
+            for _ in range(3)
+        ]
+        self.assertEqual(list(sampler), indices)
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_adapters.py b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_adapters.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a1ba3ef4d640a03bc3c5335b224919ca2776388
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_adapters.py
@@ -0,0 +1,137 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+from mmdet.structures.mask import PolygonMasks, bitmap_to_polygon
+
+from mmocr.datasets import MMDet2MMOCR, MMOCR2MMDet, Resize
+from mmocr.utils import poly2shapely
+
+
+class TestMMDet2MMOCR(unittest.TestCase):
+
+    def setUp(self):
+        img = np.zeros((15, 30, 3))
+        img_shape = (15, 30)
+        polygons = [
+            np.array([10., 5., 20., 5., 20., 10., 10., 10.]),
+            np.array([10., 5., 20., 5., 20., 10., 10., 10., 8., 7.])
+        ]
+        ignores = np.array([True, False])
+        bboxes = np.array([[10., 5., 20., 10.], [0., 0., 10., 10.]])
+        self.data_info_ocr = dict(
+            img=img,
+            gt_polygons=polygons,
+            gt_bboxes=bboxes,
+            img_shape=img_shape,
+            gt_ignored=ignores)
+
+        _polygons = [[polygon] for polygon in polygons]
+        masks = PolygonMasks(_polygons, *img_shape)
+        self.data_info_det_polygon = dict(
+            img=img,
+            gt_masks=masks,
+            gt_bboxes=bboxes,
+            gt_ignore_flags=ignores,
+            img_shape=img_shape)
+
+        masks = masks.to_bitmap()
+        self.data_info_det_mask = dict(
+            img=img,
+            gt_masks=masks,
+            gt_bboxes=bboxes,
+            gt_ignore_flags=ignores,
+            img_shape=img_shape)
+
+    def test_ocr2det_polygonmasks(self):
+        transform = MMOCR2MMDet()
+        results = transform(self.data_info_ocr.copy())
+        self.assertEqual(results['img'].shape, (15, 30, 3))
+        self.assertEqual(results['img_shape'], (15, 30))
+        self.assertTrue(
+            np.allclose(results['gt_masks'].masks[0][0],
+                        self.data_info_det_polygon['gt_masks'].masks[0][0]))
+        self.assertTrue(
+            np.allclose(results['gt_masks'].masks[0][0],
+                        self.data_info_det_polygon['gt_masks'].masks[0][0]))
+        self.assertTrue(
+            np.allclose(results['gt_bboxes'],
+                        self.data_info_det_polygon['gt_bboxes']))
+        self.assertTrue(
+            np.allclose(results['gt_ignore_flags'],
+                        self.data_info_det_polygon['gt_ignore_flags']))
+
+    def test_ocr2det_bitmapmasks(self):
+        transform = MMOCR2MMDet(poly2mask=True)
+        results = transform(self.data_info_ocr.copy())
+        self.assertEqual(results['img'].shape, (15, 30, 3))
+        self.assertEqual(results['img_shape'], (15, 30))
+        self.assertTrue(
+            poly2shapely(
+                bitmap_to_polygon(
+                    results['gt_masks'].masks[0])[0][0].flatten()).equals(
+                        poly2shapely(
+                            bitmap_to_polygon(
+                                self.data_info_det_mask['gt_masks'].masks[0])
+                            [0][0].flatten())))
+
+        self.assertTrue(
+            np.allclose(results['gt_bboxes'],
+                        self.data_info_det_mask['gt_bboxes']))
+        self.assertTrue(
+            np.allclose(results['gt_ignore_flags'],
+                        self.data_info_det_mask['gt_ignore_flags']))
+
+    def test_det2ocr_polygonmasks(self):
+        transform = MMDet2MMOCR()
+        results = transform(self.data_info_det_polygon.copy())
+        self.assertEqual(results['img'].shape, (15, 30, 3))
+        self.assertEqual(results['img_shape'], (15, 30))
+        self.assertTrue(
+            np.allclose(results['gt_polygons'][0],
+                        self.data_info_ocr['gt_polygons'][0]))
+        self.assertTrue(
+            np.allclose(results['gt_polygons'][1],
+                        self.data_info_ocr['gt_polygons'][1]))
+        self.assertTrue(
+            np.allclose(results['gt_bboxes'], self.data_info_ocr['gt_bboxes']))
+        self.assertTrue(
+            np.allclose(results['gt_ignored'],
+                        self.data_info_ocr['gt_ignored']))
+
+    def test_det2ocr_bitmapmasks(self):
+        transform = MMDet2MMOCR()
+        results = transform(self.data_info_det_mask.copy())
+        self.assertEqual(results['img'].shape, (15, 30, 3))
+        self.assertEqual(results['img_shape'], (15, 30))
+        self.assertTrue(
+            np.allclose(results['gt_bboxes'], self.data_info_ocr['gt_bboxes']))
+        self.assertTrue(
+            np.allclose(results['gt_ignored'],
+                        self.data_info_ocr['gt_ignored']))
+
+    def test_ocr2det2ocr(self):
+        from mmdet.datasets.transforms import Resize as MMDet_Resize
+        t1 = MMOCR2MMDet()
+        t2 = MMDet_Resize(scale=(60, 60))
+        t3 = MMDet2MMOCR()
+        t4 = Resize(scale=(30, 15))
+        results = t4(t3(t2(t1(self.data_info_ocr.copy()))))
+        self.assertEqual(results['img'].shape, (15, 30, 3))
+        for i in range(2):
+            self.assertTrue(
+                poly2shapely(results['gt_polygons'][i]).equals(
+                    poly2shapely(self.data_info_ocr['gt_polygons'][i])))
+        self.assertTrue(
+            np.allclose(results['gt_bboxes'], self.data_info_ocr['gt_bboxes']))
+        self.assertTrue(
+            np.array_equal(results['gt_ignored'],
+                           self.data_info_ocr['gt_ignored']))
+
+    def test_repr_det2ocr(self):
+        transform = MMDet2MMOCR()
+        self.assertEqual(repr(transform), ('MMDet2MMOCR'))
+
+    def test_repr_ocr2det(self):
+        transform = MMOCR2MMDet(poly2mask=True)
+        self.assertEqual(repr(transform), ('MMOCR2MMDet(poly2mask = True)'))
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_formatting.py b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_formatting.py
new file mode 100644
index 0000000000000000000000000000000000000000..21e9d10f2ef05ef0b84895d1064bf0119a364004
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_formatting.py
@@ -0,0 +1,214 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+from unittest import TestCase
+
+import numpy as np
+import torch
+
+from mmocr.datasets.transforms import (PackKIEInputs, PackTextDetInputs,
+                                       PackTextRecogInputs)
+
+
+class TestPackTextDetInputs(TestCase):
+
+    def test_packdetinput(self):
+        datainfo = dict(
+            img=np.random.random((10, 10)),
+            img_shape=(10, 10),
+            ori_shape=(10, 10),
+            pad_shape=(10, 10),
+            scale_factor=(1, 1),
+            img_path='tmp/tmp.jpg',
+            flip=True,
+            flip_direction='left',
+            gt_bboxes=np.array([[0, 0, 10, 10], [5, 5, 15, 15]],
+                               dtype=np.float32),
+            gt_bboxes_labels=np.array([0, 0], np.int64),
+            gt_polygons=[
+                np.array([0, 0, 0, 10, 10, 10, 10, 0], dtype=np.float32),
+                np.array([5, 5, 5, 15, 15, 15, 15, 5], dtype=np.float32)
+            ],
+            gt_texts=['mmocr', 'mmocr_ignore'],
+            gt_ignored=np.bool_([False, True]))
+        with self.assertRaises(KeyError):
+            transform = PackTextDetInputs(meta_keys=('tmp', ))
+            transform(copy.deepcopy(datainfo))
+        transform = PackTextDetInputs()
+        results = transform(copy.deepcopy(datainfo))
+        self.assertIn('inputs', results)
+        self.assertEqual(results['inputs'].shape, torch.Size([1, 10, 10]))
+        self.assertTupleEqual(tuple(results['inputs'].shape), (1, 10, 10))
+        self.assertIn('data_samples', results)
+
+        # test non-contiugous img
+        nc_datainfo = copy.deepcopy(datainfo)
+        nc_datainfo['img'] = nc_datainfo['img'].transpose(1, 0)
+        results = transform(nc_datainfo)
+        self.assertIn('inputs', results)
+        self.assertEqual(results['inputs'].shape, torch.Size([1, 10, 10]))
+
+        data_sample = results['data_samples']
+        self.assertIn('bboxes', data_sample.gt_instances)
+        self.assertIsInstance(data_sample.gt_instances.bboxes, torch.Tensor)
+        self.assertEqual(data_sample.gt_instances.bboxes.dtype, torch.float32)
+        self.assertIsInstance(data_sample.gt_instances.polygons[0], np.ndarray)
+        self.assertEqual(data_sample.gt_instances.polygons[0].dtype,
+                         np.float32)
+        self.assertEqual(data_sample.gt_instances.ignored.dtype, torch.bool)
+        self.assertEqual(data_sample.gt_instances.labels.dtype, torch.int64)
+        self.assertIsInstance(data_sample.gt_instances.texts, list)
+
+        self.assertIn('img_path', data_sample)
+        self.assertIn('flip', data_sample)
+
+        transform = PackTextDetInputs(meta_keys=('img_path', ))
+        results = transform(copy.deepcopy(datainfo))
+        self.assertIn('inputs', results)
+        self.assertIn('data_samples', results)
+
+        data_sample = results['data_samples']
+        self.assertIn('bboxes', data_sample.gt_instances)
+        self.assertIn('img_path', data_sample)
+        self.assertNotIn('flip', data_sample)
+
+        datainfo.pop('gt_texts')
+        transform = PackTextDetInputs()
+        results = transform(copy.deepcopy(datainfo))
+        data_sample = results['data_samples']
+        self.assertNotIn('texts', data_sample.gt_instances)
+
+        datainfo = dict(img_shape=(10, 10))
+        transform = PackTextDetInputs(meta_keys=('img_shape', ))
+        results = transform(copy.deepcopy(datainfo))
+        self.assertNotIn('inputs', results)
+        data_sample = results['data_samples']
+        self.assertNotIn('texts', data_sample.gt_instances)
+
+    def test_repr(self):
+        transform = PackTextDetInputs()
+        self.assertEqual(
+            repr(transform),
+            ("PackTextDetInputs(meta_keys=('img_path', 'ori_shape', "
+             "'img_shape', 'scale_factor', 'flip', 'flip_direction'))"))
+
+
+class TestPackTextRecogInputs(TestCase):
+
+    def test_packrecogtinput(self):
+        datainfo = dict(
+            img=np.random.random((10, 10)),
+            img_shape=(10, 10),
+            ori_shape=(10, 10),
+            pad_shape=(10, 10),
+            scale_factor=(1, 1),
+            img_path='tmp/tmp.jpg',
+            flip=True,
+            flip_direction='left',
+            gt_bboxes=np.array([[0, 0, 10, 10]]),
+            gt_labels=np.array([0]),
+            gt_polygons=[[0, 0, 0, 10, 10, 10, 10, 0]],
+            gt_texts=['mmocr'],
+        )
+        with self.assertRaises(KeyError):
+            transform = PackTextRecogInputs(meta_keys=('tmp', ))
+            transform(copy.deepcopy(datainfo))
+        transform = PackTextRecogInputs()
+        results = transform(copy.deepcopy(datainfo))
+        self.assertIn('inputs', results)
+        self.assertTupleEqual(tuple(results['inputs'].shape), (1, 10, 10))
+        self.assertIn('data_samples', results)
+        data_sample = results['data_samples']
+        self.assertEqual(data_sample.gt_text.item, 'mmocr')
+        self.assertIn('img_path', data_sample)
+        self.assertIn('valid_ratio', data_sample)
+        self.assertIn('pad_shape', data_sample)
+
+        # test non-contiugous img
+        nc_datainfo = copy.deepcopy(datainfo)
+        nc_datainfo['img'] = nc_datainfo['img'].transpose(1, 0)
+        results = transform(nc_datainfo)
+        self.assertIn('inputs', results)
+        self.assertEqual(results['inputs'].shape, torch.Size([1, 10, 10]))
+
+        transform = PackTextRecogInputs(meta_keys=('img_path', ))
+        results = transform(copy.deepcopy(datainfo))
+        self.assertIn('inputs', results)
+        self.assertIn('data_samples', results)
+        data_sample = results['data_samples']
+        self.assertEqual(data_sample.gt_text.item, 'mmocr')
+        self.assertIn('img_path', data_sample)
+        self.assertNotIn('valid_ratio', data_sample)
+        self.assertNotIn('pad_shape', data_sample)
+
+        datainfo = dict(img_shape=(10, 10))
+        transform = PackTextRecogInputs(meta_keys=('img_shape', ))
+        results = transform(copy.deepcopy(datainfo))
+        self.assertNotIn('inputs', results)
+        data_sample = results['data_samples']
+        self.assertNotIn('item', data_sample.gt_text)
+
+    def test_repr(self):
+        transform = PackTextRecogInputs()
+        self.assertEqual(
+            repr(transform),
+            ("PackTextRecogInputs(meta_keys=('img_path', 'ori_shape', "
+             "'img_shape', 'pad_shape', 'valid_ratio'))"))
+
+
+class TestPackKIEInputs(TestCase):
+
+    def setUp(self) -> None:
+        self.transform = PackKIEInputs()
+
+    def test_transform(self):
+        datainfo = dict(
+            img=np.random.random((10, 10)),
+            img_shape=(10, 10),
+            ori_shape=(10, 10),
+            scale_factor=(1, 1),
+            img_path='tmp/tmp.jpg',
+            gt_bboxes=np.array([[0, 0, 10, 10], [5, 5, 15, 15]],
+                               dtype=np.float32),
+            gt_bboxes_labels=np.array([0, 0], np.int64),
+            gt_edges_labels=np.array([[0, 0], [0, 0]], np.int64),
+            gt_texts=['text1', 'text2'])
+
+        with self.assertRaises(KeyError):
+            transform = PackKIEInputs(meta_keys=('tmp', ))
+            transform(copy.deepcopy(datainfo))
+
+        results = self.transform(copy.deepcopy(datainfo))
+        self.assertIn('inputs', results)
+        self.assertTupleEqual(tuple(results['inputs'].shape), (1, 10, 10))
+        self.assertIn('data_samples', results)
+        data_sample = results['data_samples']
+        self.assertIsInstance(data_sample.gt_instances.bboxes, torch.Tensor)
+        self.assertEqual(data_sample.gt_instances.bboxes.dtype, torch.float32)
+        self.assertEqual(data_sample.gt_instances.labels.dtype, torch.int64)
+        self.assertEqual(data_sample.gt_instances.edge_labels.dtype,
+                         torch.int64)
+        self.assertIsInstance(data_sample.gt_instances.texts, list)
+
+        # test non-contiugous img
+        nc_datainfo = copy.deepcopy(datainfo)
+        nc_datainfo['img'] = nc_datainfo['img'].transpose(1, 0)
+        results = self.transform(nc_datainfo)
+        self.assertIn('inputs', results)
+        self.assertEqual(results['inputs'].shape, torch.Size([1, 10, 10]))
+
+        transform = PackKIEInputs(meta_keys=('img_path', ))
+        results = transform(copy.deepcopy(datainfo))
+        self.assertIn('inputs', results)
+        self.assertIn('data_samples', results)
+
+        data_sample = results['data_samples']
+        self.assertIn('bboxes', data_sample.gt_instances)
+        self.assertIn('img_path', data_sample)
+
+        datainfo.pop('img')
+        results = self.transform(copy.deepcopy(datainfo))
+        self.assertIn('inputs', results)
+        self.assertEqual(results['inputs'].shape, torch.Size((0, 0, 0)))
+
+    def test_repr(self):
+        self.assertEqual(repr(self.transform), ('PackKIEInputs(meta_keys=())'))
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_loading.py b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_loading.py
new file mode 100644
index 0000000000000000000000000000000000000000..197d8a301980cc264da2bbb4dc0251468c96ad62
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_loading.py
@@ -0,0 +1,217 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import os.path as osp
+from unittest import TestCase
+
+import mmcv
+import numpy as np
+
+from mmocr.datasets.transforms import (InferencerLoader, LoadImageFromFile,
+                                       LoadKIEAnnotations, LoadOCRAnnotations)
+
+
+class TestLoadImageFromFile(TestCase):
+
+    def test_load_img(self):
+        data_prefix = osp.join(
+            osp.dirname(__file__), '../../data/rec_toy_dataset/imgs/')
+
+        results = dict(img_path=osp.join(data_prefix, '1036169.jpg'))
+        transform = LoadImageFromFile(min_size=0)
+        results = transform(copy.deepcopy(results))
+        self.assertEquals(results['img_path'],
+                          osp.join(data_prefix, '1036169.jpg'))
+        self.assertEquals(results['img'].shape, (25, 119, 3))
+        self.assertEquals(results['img'].dtype, np.uint8)
+        self.assertEquals(results['img_shape'], (25, 119))
+        self.assertEquals(results['ori_shape'], (25, 119))
+        self.assertEquals(
+            repr(transform),
+            ('LoadImageFromFile(ignore_empty=False, min_size=0, '
+             "to_float32=False, color_type='color', imdecode_backend='cv2', "
+             'backend_args=None)'))
+
+        # to_float32
+        transform = LoadImageFromFile(to_float32=True)
+        results = transform(copy.deepcopy(results))
+        self.assertEquals(results['img'].dtype, np.float32)
+
+        # min_size
+        transform = LoadImageFromFile(min_size=26, ignore_empty=True)
+        self.assertIsNone(transform(copy.deepcopy(results)))
+        transform = LoadImageFromFile(min_size=26)
+        with self.assertRaises(IOError):
+            transform(copy.deepcopy(results))
+
+        # test load empty
+        fake_img_path = osp.join(data_prefix, 'fake.jpg')
+        results = dict(img_path=fake_img_path)
+        transform = LoadImageFromFile(ignore_empty=False)
+        with self.assertRaises(FileNotFoundError):
+            transform(copy.deepcopy(results))
+        transform = LoadImageFromFile(ignore_empty=True)
+        results = transform(copy.deepcopy(results))
+        self.assertIsNone(results)
+
+        data_prefix = osp.join(osp.dirname(__file__), '../../data')
+        broken_img_path = osp.join(data_prefix, 'broken.jpg')
+        results = dict(img_path=broken_img_path)
+        transform = LoadImageFromFile(ignore_empty=False)
+        with self.assertRaises(IOError):
+            transform(copy.deepcopy(results))
+        transform = LoadImageFromFile(ignore_empty=True)
+        results = transform(copy.deepcopy(results))
+        self.assertIsNone(results)
+
+
+class TestLoadOCRAnnotations(TestCase):
+
+    def setUp(self):
+        self.results = {
+            'height':
+            288,
+            'width':
+            512,
+            'instances': [{
+                'bbox': [0, 0, 10, 20],
+                'bbox_label': 1,
+                'polygon': [0, 0, 0, 20, 10, 20, 10, 0],
+                'text': 'tmp1',
+                'ignore': False
+            }, {
+                'bbox': [10, 10, 110, 120],
+                'bbox_label': 2,
+                'polygon': [10, 10, 10, 120, 110, 120, 110, 10],
+                'text': 'tmp2',
+                'ignore': False
+            }, {
+                'bbox': [0, 0, 10, 20],
+                'bbox_label': 1,
+                'polygon': [0, 0, 0, 20, 10, 20, 10, 0],
+                'text': 'tmp3',
+                'ignore': True
+            }, {
+                'bbox': [10, 10, 110, 120],
+                'bbox_label': 2,
+                'polygon': [10, 10, 10, 120, 110, 120, 110, 10],
+                'text': 'tmp4',
+                'ignore': True
+            }]
+        }
+
+    def test_load_polygon(self):
+        transform = LoadOCRAnnotations(
+            with_bbox=False, with_label=False, with_polygon=True)
+        results = transform(copy.deepcopy(self.results))
+        self.assertIn('gt_polygons', results)
+        self.assertIsInstance(results['gt_polygons'], list)
+        self.assertEqual(len(results['gt_polygons']), 4)
+        for gt_polygon in results['gt_polygons']:
+            self.assertIsInstance(gt_polygon, np.ndarray)
+            self.assertEqual(gt_polygon.dtype, np.float32)
+
+        self.assertIn('gt_ignored', results)
+        self.assertEqual(results['gt_ignored'].dtype, np.bool_)
+        self.assertTrue((results['gt_ignored'],
+                         np.array([False, False, True, True], dtype=np.bool_)))
+
+    def test_load_text(self):
+        transform = LoadOCRAnnotations(
+            with_bbox=False, with_label=False, with_text=True)
+        results = transform(copy.deepcopy(self.results))
+        self.assertIn('gt_texts', results)
+        self.assertListEqual(results['gt_texts'],
+                             ['tmp1', 'tmp2', 'tmp3', 'tmp4'])
+
+    def test_repr(self):
+        transform = LoadOCRAnnotations(
+            with_bbox=True, with_label=True, with_polygon=True, with_text=True)
+        self.assertEqual(
+            repr(transform),
+            ('LoadOCRAnnotations(with_bbox=True, with_label=True, '
+             'with_polygon=True, with_text=True, '
+             "imdecode_backend='cv2', backend_args=None)"))
+
+
+class TestLoadKIEAnnotations(TestCase):
+
+    def setUp(self):
+        self.results = {
+            'bboxes': np.random.rand(2, 4).astype(np.float32),
+            'bbox_labels': np.random.randint(0, 10, (2, )),
+            'edge_labels': np.random.randint(0, 10, (2, 2)),
+            'texts': ['text1', 'text2'],
+            'ori_shape': (288, 512)
+        }
+        self.results = {
+            'img_shape': (288, 512),
+            'ori_shape': (288, 512),
+            'instances': [{
+                'bbox': [0, 0, 10, 20],
+                'bbox_label': 1,
+                'edge_label': 1,
+                'text': 'tmp1',
+            }, {
+                'bbox': [10, 10, 110, 120],
+                'bbox_label': 2,
+                'edge_label': 1,
+                'text': 'tmp2',
+            }]
+        }
+        self.load = LoadKIEAnnotations()
+
+    def test_transform(self):
+        results = self.load(copy.deepcopy(self.results))
+
+        self.assertIn('gt_bboxes', results)
+        self.assertIsInstance(results['gt_bboxes'], np.ndarray)
+        self.assertEqual(results['gt_bboxes'].shape, (2, 4))
+        self.assertEqual(results['gt_bboxes'].dtype, np.float32)
+
+        self.assertIn('gt_bboxes_labels', results)
+        self.assertIsInstance(results['gt_bboxes_labels'], np.ndarray)
+        self.assertEqual(results['gt_bboxes_labels'].shape, (2, ))
+        self.assertEqual(results['gt_bboxes_labels'].dtype, np.int64)
+
+        self.assertIn('gt_edges_labels', results)
+        self.assertIsInstance(results['gt_edges_labels'], np.ndarray)
+        self.assertEqual(results['gt_edges_labels'].shape, (2, 2))
+        self.assertEqual(results['gt_edges_labels'].dtype, np.int64)
+
+        self.assertIn('ori_shape', results)
+        self.assertEqual(results['ori_shape'], (288, 512))
+
+        load = LoadKIEAnnotations(key_node_idx=1, value_node_idx=2)
+        results = load(copy.deepcopy(self.results))
+        self.assertEqual(results['gt_edges_labels'][0, 1], 1)
+        self.assertEqual(results['gt_edges_labels'][1, 0], -1)
+
+    def test_repr(self):
+        self.assertEqual(
+            repr(self.load),
+            'LoadKIEAnnotations(with_bbox=True, with_label=True, '
+            'with_text=True)')
+
+
+class TestInferencerLoader(TestCase):
+
+    def test_transform(self):
+        loader = InferencerLoader()
+
+        # load from path
+        img_path = 'tests/data/det_toy_dataset/imgs/test/img_1.jpg'
+        res = loader(img_path)
+        self.assertIsInstance(res['img'], np.ndarray)
+
+        # load from ndarray
+        img = mmcv.imread(img_path)
+        res = loader(img)
+        self.assertIsInstance(res['img'], np.ndarray)
+
+        # load from dict
+        res = loader(dict(img=img))
+        self.assertIsInstance(res['img'], np.ndarray)
+
+        # invalid input
+        with self.assertRaises(NotImplementedError):
+            loader(['hello'])
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_ocr_transforms.py b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_ocr_transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..35a39779368c2f3e7be127b6a37a67a705c18635
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_ocr_transforms.py
@@ -0,0 +1,348 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+import unittest.mock as mock
+
+import numpy as np
+
+from mmocr.datasets.transforms import (FixInvalidPolygon, RandomCrop,
+                                       RandomRotate, RemoveIgnored, Resize)
+from mmocr.utils import poly2shapely
+
+
+class TestRandomCrop(unittest.TestCase):
+
+    def setUp(self):
+        img = np.zeros((30, 30, 3))
+        gt_polygons = [
+            np.array([5., 5., 25., 5., 25., 10., 5., 10.]),
+            np.array([5., 20., 25., 20., 25., 25., 5., 25.])
+        ]
+        gt_bboxes = np.array([[5, 5, 25, 10], [5, 20, 25, 25]])
+        labels = np.array([0, 1])
+        gt_ignored = np.array([True, False], dtype=bool)
+        texts = ['text1', 'text2']
+        self.data_info = dict(
+            img=img,
+            gt_polygons=gt_polygons,
+            gt_bboxes=gt_bboxes,
+            gt_bboxes_labels=labels,
+            gt_ignored=gt_ignored,
+            gt_texts=texts)
+
+    @mock.patch('mmocr.datasets.transforms.ocr_transforms.np.random.randint')
+    def test_sample_crop_box(self, mock_randint):
+
+        def rand_min(low, high):
+            return low
+
+        trans = RandomCrop(min_side_ratio=0.3)
+        mock_randint.side_effect = rand_min
+        crop_box = trans._sample_crop_box((30, 30), self.data_info.copy())
+        assert np.allclose(np.array(crop_box), np.array([0, 0, 25, 10]))
+
+        def rand_max(low, high):
+            return high - 1
+
+        mock_randint.side_effect = rand_max
+        crop_box = trans._sample_crop_box((30, 30), self.data_info.copy())
+        assert np.allclose(np.array(crop_box), np.array([4, 19, 30, 30]))
+
+    @mock.patch('mmocr.datasets.transforms.ocr_transforms.np.random.randint')
+    def test_transform(self, mock_randint):
+
+        def rand_min(low, high):
+            return low
+
+        # mock_randint.side_effect = [0, 0, 0, 0, 30, 0, 0, 0, 15]
+        mock_randint.side_effect = rand_min
+        trans = RandomCrop(min_side_ratio=0.3)
+        polygon_target = np.array([5., 5., 25., 5., 25., 10., 5., 10.])
+        bbox_target = np.array([[5., 5., 25., 10.]])
+        results = trans(self.data_info)
+
+        self.assertEqual(results['img'].shape, (10, 25, 3))
+        self.assertEqual(results['img_shape'], (10, 25))
+        self.assertTrue(np.allclose(results['gt_bboxes'], bbox_target))
+        self.assertEqual(results['gt_bboxes'].shape, (1, 4))
+        self.assertEqual(len(results['gt_polygons']), 1)
+        self.assertTrue(np.allclose(results['gt_polygons'][0], polygon_target))
+        self.assertEqual(results['gt_bboxes_labels'][0], 0)
+        self.assertEqual(results['gt_ignored'][0], True)
+        self.assertEqual(results['gt_texts'][0], 'text1')
+
+        def rand_max(low, high):
+            return high - 1
+
+        mock_randint.side_effect = rand_max
+        trans = RandomCrop(min_side_ratio=0.3)
+        polygon_target = np.array([1, 1, 21, 1, 21, 6, 1, 6])
+        bbox_target = np.array([[1, 1, 21, 6]])
+        results = trans(self.data_info)
+
+        self.assertEqual(results['img'].shape, (6, 21, 3))
+        self.assertEqual(results['img_shape'], (6, 21))
+        self.assertTrue(np.allclose(results['gt_bboxes'], bbox_target))
+        self.assertEqual(results['gt_bboxes'].shape, (1, 4))
+        self.assertEqual(len(results['gt_polygons']), 1)
+        self.assertTrue(np.allclose(results['gt_polygons'][0], polygon_target))
+        self.assertEqual(results['gt_bboxes_labels'][0], 0)
+        self.assertTrue(results['gt_ignored'][0])
+        self.assertEqual(results['gt_texts'][0], 'text1')
+
+    def test_repr(self):
+        transform = RandomCrop(min_side_ratio=0.4)
+        self.assertEqual(repr(transform), ('RandomCrop(min_side_ratio = 0.4)'))
+
+
+class TestRandomRotate(unittest.TestCase):
+
+    def setUp(self):
+        img = np.random.random((5, 5))
+        self.data_info1 = dict(img=img.copy(), img_shape=img.shape[:2])
+        self.data_info2 = dict(
+            img=np.random.random((30, 30, 3)),
+            gt_bboxes=np.array([[10, 10, 20, 20], [5, 5, 10, 10]]),
+            img_shape=(30, 30))
+        self.data_info3 = dict(
+            img=np.random.random((30, 30, 3)),
+            gt_polygons=[np.array([10., 10., 20., 10., 20., 20., 10., 20.])],
+            img_shape=(30, 30))
+
+    def test_init(self):
+        # max angle is float
+        with self.assertRaisesRegex(TypeError,
+                                    '`max_angle` should be an integer'):
+            RandomRotate(max_angle=16.8)
+        # invalid pad value
+        with self.assertRaisesRegex(
+                ValueError, '`pad_value` should contain three integers'):
+            RandomRotate(pad_value=[16.8, 0.1])
+
+    def test_transform(self):
+        self._test_recog()
+        self._test_bboxes()
+        self._test_polygons()
+
+    def _test_recog(self):
+        # test random rotate for recognition (image only) input
+        transform = RandomRotate(max_angle=10)
+        results = transform(copy.deepcopy(self.data_info1))
+        self.assertTrue(np.allclose(results['img'], self.data_info1['img']))
+
+    @mock.patch(
+        'mmocr.datasets.transforms.ocr_transforms.np.random.random_sample')
+    def _test_bboxes(self, mock_sample):
+        # test random rotate for bboxes
+        # returns 1. for random_sample() in _sample_angle(), i.e., angle = 90
+        mock_sample.side_effect = [1.]
+        transform = RandomRotate(max_angle=90, use_canvas=True)
+        results = transform(copy.deepcopy(self.data_info2))
+        self.assertTrue(
+            np.allclose(results['gt_bboxes'][0], np.array([10, 10, 20, 20])))
+        self.assertTrue(
+            np.allclose(results['gt_bboxes'][1], np.array([5, 20, 10, 25])))
+        self.assertEqual(results['img'].shape, self.data_info2['img'].shape)
+
+    @mock.patch(
+        'mmocr.datasets.transforms.ocr_transforms.np.random.random_sample')
+    def _test_polygons(self, mock_sample):
+        # test random rotate for polygons
+        # returns 1. for random_sample() in _sample_angle(), i.e., angle = 90
+        mock_sample.side_effect = [1.]
+        transform = RandomRotate(max_angle=90, use_canvas=True)
+        results = transform(copy.deepcopy(self.data_info3))
+        self.assertTrue(
+            np.allclose(results['gt_polygons'][0],
+                        np.array([10., 20., 10., 10., 20., 10., 20., 20.])))
+        self.assertEqual(results['img'].shape, self.data_info3['img'].shape)
+
+    def test_repr(self):
+        transform = RandomRotate(
+            max_angle=10,
+            pad_with_fixed_color=False,
+            pad_value=(0, 0, 0),
+            use_canvas=False)
+        self.assertEqual(
+            repr(transform),
+            ('RandomRotate(max_angle = 10, '
+             'pad_with_fixed_color = False, pad_value = (0, 0, 0), '
+             'use_canvas = False)'))
+
+
+class TestResize(unittest.TestCase):
+
+    def test_resize_wo_img(self):
+        # keep_ratio = True
+        dummy_result = dict(img_shape=(10, 20))
+        resize = Resize(scale=(40, 30), keep_ratio=True)
+        result = resize(dummy_result)
+        self.assertEqual(result['img_shape'], (20, 40))
+        self.assertEqual(result['scale'], (40, 20))
+        self.assertEqual(result['scale_factor'], (2., 2.))
+        self.assertEqual(result['keep_ratio'], True)
+
+        # keep_ratio = False
+        dummy_result = dict(img_shape=(10, 20))
+        resize = Resize(scale=(40, 30), keep_ratio=False)
+        result = resize(dummy_result)
+        self.assertEqual(result['img_shape'], (30, 40))
+        self.assertEqual(result['scale'], (40, 30))
+        self.assertEqual(result['scale_factor'], (
+            2.,
+            3.,
+        ))
+        self.assertEqual(result['keep_ratio'], False)
+
+    def test_resize_bbox(self):
+        # keep_ratio = True
+        dummy_result = dict(
+            img_shape=(10, 20),
+            gt_bboxes=np.array([[0, 0, 1, 1]], dtype=np.float32))
+        resize = Resize(scale=(40, 30))
+        result = resize(dummy_result)
+        self.assertEqual(result['gt_bboxes'].dtype, np.float32)
+
+
+class TestFixInvalidPolygon(unittest.TestCase):
+
+    def setUp(self):
+        # All polygons are invalid w/o gt_bboxes
+        self.data_info = dict(
+            img=np.random.random((30, 40, 3)),
+            gt_polygons=[
+                np.array([0., 0., 10., 10., 10., 0., 0., 10.]),
+                np.array([0., 0., 10., 0., 0., 10., 5., 10.]),
+                np.array([0, 10]),
+                np.array([0, 10, 0, 10, 10, 0, 0, 10]),
+            ],
+            gt_ignored=np.array([False, False, False, False], dtype=bool))
+        # All polygons are invalid with gt_bboxes
+        # the third one can be recovered from gt_bboxes
+        # the fourth one has no valid polygon and bbox
+        self.data_info2 = dict(
+            img=np.random.random((30, 40, 3)),
+            gt_polygons=[
+                np.array([0., 0., 10., 10., 10., 0.]),
+                np.array([0., 0., 10., 0., 0., 10.]),
+                np.array([0, 10, 0, 10, 10, 0, 0, 10]),
+                np.array([0, 10, 0, 10, 10, 0, 0, 10]),
+            ],
+            gt_bboxes=np.array([[0., 0., 10., 10.], [0., 0., 10., 10.],
+                                [0, 0, 10, 10], [0, 0, 0, 0]]),
+            gt_ignored=np.array([False, False, False, False], dtype=bool))
+        # Contains all unfixable polygons
+        self.data_info3 = dict(
+            img=np.random.random((30, 40, 3)),
+            gt_polygons=[
+                np.array([0, 10]),
+                np.array([0, 10, 0, 10, 10, 0, 0, 10]),
+            ],
+            gt_ignored=np.array([False, False], dtype=bool))
+        # The first one is valid, and the second one is invalid
+        self.data_info4 = dict(
+            img=np.random.random((30, 40, 3)),
+            gt_polygons=[
+                np.array([0., 0., 10., 0., 10., 10., 0., 10.]),
+                np.array([0, 10, 0, 10, 10, 0, 0, 10]),
+            ],
+            gt_ignored=np.array([False, False], dtype=bool))
+        # no gt_polygons
+        self.data_info5 = dict(
+            img=np.random.random((30, 40, 3)),
+            gt_bboxes=np.array([[0., 0., 10., 10.], [0., 0., 10., 10.],
+                                [0, 0, 10, 10], [0, 0, 0, 0]]),
+            gt_ignored=np.array([False, False, False, False], dtype=bool))
+
+    def test_transform_fix(self):
+        transform = FixInvalidPolygon(mode='fix', min_poly_points=4)
+        results = transform(copy.deepcopy(self.data_info))
+        # The third one is removed because it doesn't have enough points
+        # The fourth one is removed because it is a line
+        assert len(
+            results['gt_polygons']) == len(self.data_info['gt_polygons']) - 2
+        for poly in results['gt_polygons']:
+            self.assertTrue(poly2shapely(poly).is_valid)
+        results = transform(copy.deepcopy(self.data_info2))
+        # The fourth one is removed because it is a line, and its bbox is also
+        # invalid
+        assert len(
+            results['gt_polygons']) == len(self.data_info['gt_polygons']) - 1
+        for poly in results['gt_polygons']:
+            self.assertTrue(len(poly) >= 8 and len(poly) % 2 == 0)
+        # test not fixing the invalid polygons from bboxes
+        transform_wo_bbox = FixInvalidPolygon(
+            mode='fix', min_poly_points=4, fix_from_bbox=False)
+        results = transform_wo_bbox(copy.deepcopy(self.data_info2))
+        # The fourth one is removed because it is a line, and its bbox is also
+        # invalid
+        assert len(
+            results['gt_polygons']) == len(self.data_info['gt_polygons']) - 2
+        for poly in results['gt_polygons']:
+            self.assertTrue(len(poly) >= 8 and len(poly) % 2 == 0)
+        # Fixing all invalid polygons would result in an empty result dict,
+        # and therefore the transform would return None
+        results = transform(copy.deepcopy(self.data_info3))
+        self.assertIsNone(results)
+        # If no gt_polygon inside
+        results = transform(copy.deepcopy(self.data_info5))
+        for k, v in results.items():
+            self.assertTrue(np.array_equal(v, self.data_info5[k]))
+
+    def test_transform_ignore(self):
+        transform = FixInvalidPolygon(mode='ignore')
+        results = transform(copy.deepcopy(self.data_info))
+        self.assertTrue(
+            np.array_equal(results['gt_ignored'],
+                           np.array([True, True, True, True], dtype=bool)))
+        results = transform(copy.deepcopy(self.data_info4))
+        self.assertTrue(
+            np.array_equal(results['gt_ignored'],
+                           np.array([False, True], dtype=bool)))
+        for poly, ignored in zip(results['gt_polygons'],
+                                 results['gt_ignored']):
+            if not ignored:
+                self.assertTrue(poly2shapely(poly).is_valid)
+        # If no gt_polygon inside
+        results = transform(copy.deepcopy(self.data_info5))
+        for k, v in results.items():
+            self.assertTrue(np.array_equal(v, self.data_info5[k]))
+
+    def test_repr(self):
+        transform = FixInvalidPolygon()
+        print(repr(transform))
+        self.assertEqual(
+            repr(transform),
+            'FixInvalidPolygon(mode = "fix", min_poly_points = 4, '
+            'fix_from_bbox = True)')
+
+
+class TestRemoveIgnored(unittest.TestCase):
+
+    def setUp(self):
+        self.data_info = dict(
+            img=np.random.random((30, 40, 3)),
+            gt_polygons=[
+                np.array([0., 0., 10., 10., 10., 0.]),
+                np.array([0., 0., 10., 0., 0., 10.]),
+                np.array([0, 10, 0, 10, 1, 2, 3, 4]),
+                np.array([0, 10, 0, 10, 10, 0, 0, 10]),
+            ],
+            gt_bboxes=np.array([[1, 2, 3, 4], [5, 6, 7, 8], [0, 0, 10, 10],
+                                [0, 0, 0, 0]]),
+            gt_ignored=np.array([False, True, True, False], dtype=bool),
+            gt_texts=['t1', 't2', 't3', 't4'],
+            gt_bboxes_labels=np.array([0, 1, 2, 3]))
+        self.keys = [
+            'gt_polygons', 'gt_bboxes', 'gt_ignored', 'gt_texts',
+            'gt_bboxes_labels'
+        ]
+
+    def test_transform(self):
+        transform = RemoveIgnored()
+        results = transform(copy.deepcopy(self.data_info))
+        for original_idx, new_idx in enumerate([0, 3]):
+            for key in self.keys:
+                self.assertTrue(
+                    np.array_equal(results[key][original_idx],
+                                   self.data_info[key][new_idx]))
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_textdet_transforms.py b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_textdet_transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..92f01856b797a6eab38cc631c1d609dff0a61304
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_textdet_transforms.py
@@ -0,0 +1,493 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+import unittest.mock as mock
+
+import numpy as np
+from mmcv.transforms import Pad, RandomResize
+
+from mmocr.datasets.transforms import (BoundedScaleAspectJitter, RandomCrop,
+                                       RandomFlip, Resize,
+                                       ShortScaleAspectJitter, SourceImagePad,
+                                       TextDetRandomCrop,
+                                       TextDetRandomCropFlip)
+from mmocr.utils import bbox2poly, poly2shapely
+
+
+class TestBoundedScaleAspectJitter(unittest.TestCase):
+
+    @mock.patch(
+        'mmocr.datasets.transforms.textdet_transforms.np.random.random_sample')
+    def test_transform(self, mock_random):
+        mock_random.side_effect = [1.0, 1.0]
+        data_info = dict(img=np.random.random((16, 25, 3)), img_shape=(16, 25))
+        # test size and size_divisor are both set
+        transform = BoundedScaleAspectJitter(10, 5)
+        result = transform(data_info)
+        print(result['img'].shape)
+        self.assertEqual(result['img'].shape, (8, 12, 3))
+        self.assertEqual(result['img_shape'], (8, 12))
+
+    def test_repr(self):
+        transform = BoundedScaleAspectJitter(10, 5)
+        print(repr(transform))
+        self.assertEqual(
+            repr(transform),
+            ('BoundedScaleAspectJitter(long_size_bound = 10, '
+             'short_size_bound = 5, ratio_range = (0.7, 1.3), '
+             'aspect_ratio_range = (0.9, 1.1), '
+             "resize_cfg = {'type': 'Resize', 'scale': 0})"))
+
+
+class TestEastRandomCrop(unittest.TestCase):
+
+    def setUp(self):
+        img = np.ones((30, 30, 3))
+        gt_polygons = [
+            np.array([5., 5., 25., 5., 25., 10., 5., 10.]),
+            np.array([5., 20., 25., 20., 25., 25., 5., 25.])
+        ]
+        gt_bboxes = np.array([[5, 5, 25, 10], [5, 20, 25, 25]])
+        labels = np.array([0, 1])
+        gt_ignored = np.array([True, False], dtype=bool)
+        texts = ['text1', 'text2']
+        self.data_info = dict(
+            img=img,
+            gt_polygons=gt_polygons,
+            gt_bboxes=gt_bboxes,
+            gt_bboxes_labels=labels,
+            gt_ignored=gt_ignored,
+            gt_texts=texts)
+
+    @mock.patch('mmocr.datasets.transforms.ocr_transforms.np.random.randint')
+    def test_east_random_crop(self, mock_randint):
+
+        # test randomcrop
+        randcrop = RandomCrop(min_side_ratio=0.5)
+        mock_randint.side_effect = [0, 0, 0, 0, 30, 0, 0, 0, 15]
+        crop_results = randcrop(self.data_info)
+        polygon_target = np.array([5., 5., 25., 5., 25., 10., 5., 10.])
+        bbox_target = np.array([[5., 5., 25., 10.]])
+        self.assertEqual(crop_results['img'].shape, (15, 30, 3))
+        self.assertEqual(crop_results['img_shape'], (15, 30))
+        self.assertTrue(np.allclose(crop_results['gt_bboxes'], bbox_target))
+        self.assertEqual(crop_results['gt_bboxes'].shape, (1, 4))
+        self.assertEqual(len(crop_results['gt_polygons']), 1)
+        self.assertTrue(
+            np.allclose(crop_results['gt_polygons'][0], polygon_target))
+        self.assertEqual(crop_results['gt_bboxes_labels'][0], 0)
+        self.assertTrue(crop_results['gt_ignored'][0])
+        self.assertEqual(crop_results['gt_texts'][0], 'text1')
+
+        # test resize
+        resize = Resize(scale=(30, 30), keep_ratio=True)
+        resize_results = resize(crop_results)
+        self.assertEqual(resize_results['img'].shape, (15, 30, 3))
+        self.assertEqual(crop_results['img_shape'], (15, 30))
+        self.assertEqual(crop_results['scale'], (30, 30))
+        self.assertEqual(crop_results['scale_factor'], (1., 1.))
+        self.assertTrue(crop_results['keep_ratio'])
+
+        # test pad
+        pad = Pad(size=(30, 30))
+        pad_results = pad(resize_results)
+        self.assertEqual(pad_results['img'].shape, (30, 30, 3))
+        self.assertEqual(pad_results['pad_shape'], (30, 30, 3))
+        self.assertEqual(pad_results['img'].sum(), 15 * 30 * 3)
+
+
+class TestRandomFlip(unittest.TestCase):
+
+    def setUp(self):
+        img = np.random.random((30, 40, 3))
+        gt_polygons = [np.array([10., 5., 20., 5., 20., 10., 10., 10.])]
+        self.data_info = dict(
+            img_shape=(30, 40), img=img, gt_polygons=gt_polygons)
+
+    def test_flip_polygons(self):
+        t = RandomFlip(prob=1.0, direction='horizontal')
+        results = t.flip_polygons(self.data_info['gt_polygons'], (30, 40),
+                                  'horizontal')
+        self.assertIsInstance(results, list)
+        self.assertIsInstance(results[0], np.ndarray)
+        self.assertTrue(
+            (results[0] == np.array([30., 5., 20., 5., 20., 10., 30.,
+                                     10.])).all())
+
+        results = t.flip_polygons(self.data_info['gt_polygons'], (30, 40),
+                                  'vertical')
+        self.assertIsInstance(results, list)
+        self.assertIsInstance(results[0], np.ndarray)
+        self.assertTrue(
+            (results[0] == np.array([10., 25., 20., 25., 20., 20., 10.,
+                                     20.])).all())
+        results = t.flip_polygons(self.data_info['gt_polygons'], (30, 40),
+                                  'diagonal')
+        self.assertIsInstance(results, list)
+        self.assertIsInstance(results[0], np.ndarray)
+        self.assertTrue(
+            (results[0] == np.array([30., 25., 20., 25., 20., 20., 30.,
+                                     20.])).all())
+        with self.assertRaises(ValueError):
+            t.flip_polygons(self.data_info['gt_polygons'], (30, 40), 'mmocr')
+
+    def test_flip(self):
+        t = RandomFlip(prob=1.0, direction='horizontal')
+        results = t(self.data_info.copy())
+        self.assertEqual(results['img'].shape, (30, 40, 3))
+        self.assertEqual(results['img_shape'], (30, 40))
+        self.assertTrue((results['gt_polygons'][0] == np.array(
+            [30., 5., 20., 5., 20., 10., 30., 10.])).all())
+
+
+class TestRandomResize(unittest.TestCase):
+
+    def setUp(self):
+        self.data_info1 = dict(
+            img=np.random.random((300, 400, 3)),
+            gt_bboxes=np.array([[0, 0, 60, 100]]),
+            gt_polygons=[np.array([0, 0, 200, 0, 200, 100, 0, 100])])
+
+    @mock.patch('mmcv.transforms.processing.np.random.random_sample')
+    def test_random_resize(self, mock_sample):
+        randresize = RandomResize(
+            scale=(500, 500),
+            ratio_range=(0.8, 1.2),
+            resize_type='mmocr.Resize',
+            keep_ratio=True)
+        target_bboxes = np.array([0, 0, 90, 150])
+        target_polygons = [np.array([0, 0, 300, 0, 300, 150, 0, 150])]
+
+        mock_sample.side_effect = [1.0]
+        results = randresize(self.data_info1)
+
+        self.assertEqual(results['img'].shape, (450, 600, 3))
+        self.assertEqual(results['img_shape'], (450, 600))
+        self.assertEqual(results['keep_ratio'], True)
+        self.assertEqual(results['scale'], (600, 600))
+        self.assertEqual(results['scale_factor'], (600. / 400., 450. / 300.))
+
+        self.assertTrue(
+            poly2shapely(bbox2poly(results['gt_bboxes'][0])).equals(
+                poly2shapely(bbox2poly(target_bboxes))))
+        self.assertTrue(
+            poly2shapely(results['gt_polygons'][0]).equals(
+                poly2shapely(target_polygons[0])))
+
+
+class TestShortScaleAspectJitter(unittest.TestCase):
+
+    @mock.patch(
+        'mmocr.datasets.transforms.textdet_transforms.np.random.random_sample')
+    def test_transform(self, mock_random):
+        ratio_range = (0.5, 1.5)
+        aspect_ratio_range = (0.9, 1.1)
+        mock_random.side_effect = [0.5, 0.5]
+        img = np.zeros((15, 20, 3))
+        polygon = [np.array([10., 5., 20., 5., 20., 10., 10., 10.])]
+        bbox = np.array([[10., 5., 20., 10.]])
+        data_info = dict(img=img, gt_polygons=polygon, gt_bboxes=bbox)
+        t = ShortScaleAspectJitter(
+            short_size=40,
+            ratio_range=ratio_range,
+            aspect_ratio_range=aspect_ratio_range,
+            scale_divisor=4)
+        results = t(data_info)
+        self.assertEqual(results['img'].shape, (40, 56, 3))
+        self.assertEqual(results['img_shape'], (40, 56))
+
+    def test_repr(self):
+        transform = ShortScaleAspectJitter(
+            short_size=40,
+            ratio_range=(0.5, 1.5),
+            aspect_ratio_range=(0.9, 1.1),
+            scale_divisor=4,
+            resize_type='Resize')
+        self.assertEqual(
+            repr(transform), ('ShortScaleAspectJitter('
+                              'short_size = 40, '
+                              'ratio_range = (0.5, 1.5), '
+                              'aspect_ratio_range = (0.9, 1.1), '
+                              'scale_divisor = 4, '
+                              "resize_cfg = {'type': 'Resize', 'scale': 0})"))
+
+
+class TestSourceImagePad(unittest.TestCase):
+
+    def setUp(self):
+        img = np.zeros((15, 30, 3))
+        polygon = [np.array([10., 5., 20., 5., 20., 10., 10., 10.])]
+        bbox = np.array([[10., 5., 20., 10.]])
+        self.data_info = dict(img=img, gt_polygons=polygon, gt_bboxes=bbox)
+
+    def test_source_image_pad(self):
+        # test image size equals to target size
+        trans = SourceImagePad(target_scale=(30, 15))
+        target_polygon = self.data_info['gt_polygons'][0]
+        target_bbox = self.data_info['gt_bboxes']
+        results = trans(self.data_info.copy())
+        self.assertEqual(results['img'].shape, (15, 30, 3))
+        self.assertEqual(results['img_shape'], (15, 30))
+        self.assertEqual(results['pad_shape'], (15, 30, 3))
+        self.assertEqual(results['pad_fixed_size'], (30, 15))
+        self.assertTrue(np.allclose(results['gt_polygons'][0], target_polygon))
+        self.assertTrue(np.allclose(results['gt_bboxes'][0], target_bbox))
+
+        # test pad to square
+        trans = SourceImagePad(target_scale=30)
+        target_polygon = np.array([10., 5., 20., 5., 20., 10., 10., 10.])
+        target_bbox = np.array([[10., 5., 20., 10.]])
+        results = trans(self.data_info.copy())
+        self.assertEqual(results['img'].shape, (30, 30, 3))
+        self.assertEqual(results['img_shape'], (30, 30))
+        self.assertEqual(results['pad_shape'], (30, 30, 3))
+        self.assertEqual(results['pad_fixed_size'], (30, 30))
+        self.assertTrue(np.allclose(results['gt_polygons'][0], target_polygon))
+        self.assertTrue(np.allclose(results['gt_bboxes'][0], target_bbox))
+
+        # test pad to different shape
+        trans = SourceImagePad(target_scale=(40, 60))
+        target_polygon = np.array([10., 5., 20., 5., 20., 10., 10., 10.])
+        target_bbox = np.array([[10., 5., 20., 10.]])
+        results = trans(self.data_info.copy())
+        self.assertEqual(results['img'].shape, (60, 40, 3))
+        self.assertEqual(results['img_shape'], (60, 40))
+        self.assertEqual(results['pad_shape'], (60, 40, 3))
+        self.assertEqual(results['pad_fixed_size'], (40, 60))
+        self.assertTrue(np.allclose(results['gt_polygons'][0], target_polygon))
+        self.assertTrue(np.allclose(results['gt_bboxes'][0], target_bbox))
+
+        # test pad with different crop_ratio
+        trans = SourceImagePad(target_scale=30, crop_ratio=1.0)
+        target_polygon = np.array([10., 5., 20., 5., 20., 10., 10., 10.])
+        target_bbox = np.array([[10., 5., 20., 10.]])
+        results = trans(self.data_info.copy())
+        self.assertEqual(results['img'].shape, (30, 30, 3))
+        self.assertEqual(results['img_shape'], (30, 30))
+        self.assertEqual(results['pad_shape'], (30, 30, 3))
+        self.assertEqual(results['pad_fixed_size'], (30, 30))
+        self.assertTrue(np.allclose(results['gt_polygons'][0], target_polygon))
+        self.assertTrue(np.allclose(results['gt_bboxes'][0], target_bbox))
+
+    def test_repr(self):
+        transform = SourceImagePad(target_scale=30, crop_ratio=0.1)
+        self.assertEqual(
+            repr(transform),
+            ('SourceImagePad(target_scale = (30, 30), crop_ratio = (0.1, 0.1))'
+             ))
+
+
+class TestTextDetRandomCrop(unittest.TestCase):
+
+    def setUp(self):
+        img = np.array([[[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5],
+                         [1, 2, 3, 4, 5], [1, 2, 3, 4,
+                                           5]]]).transpose(1, 2, 0)
+        gt_polygons = [np.array([2, 2, 5, 2, 5, 5, 2, 5])]
+        gt_bboxes = np.array([[2, 2, 5, 5]])
+        gt_bboxes_labels = np.array([0])
+        gt_ignored = np.array([True], dtype=bool)
+        self.data_info = dict(
+            img=img,
+            gt_polygons=gt_polygons,
+            gt_bboxes=gt_bboxes,
+            gt_bboxes_labels=gt_bboxes_labels,
+            gt_ignored=gt_ignored)
+
+    @mock.patch(
+        'mmocr.datasets.transforms.textdet_transforms.np.random.random_sample')
+    @mock.patch('mmocr.datasets.transforms.textdet_transforms.random.randint')
+    def test_sample_offset(self, mock_randint, mock_sample):
+        # test target size is bigger than image size
+        mock_sample.side_effect = [1]
+        trans = TextDetRandomCrop(target_size=(6, 6))
+        offset = trans._sample_offset(self.data_info['gt_polygons'],
+                                      self.data_info['img'].shape[:2])
+        self.assertEqual(offset, (0, 0))
+
+        # test the first bracnh in sample_offset
+        mock_sample.side_effect = [0.1]
+        mock_randint.side_effect = [0, 2]
+        trans = TextDetRandomCrop(target_size=(3, 3))
+        offset = trans._sample_offset(self.data_info['gt_polygons'],
+                                      self.data_info['img'].shape[:2])
+        self.assertEqual(offset, (0, 2))
+
+        # test the second branch in sample_offset
+        mock_sample.side_effect = [1]
+        mock_randint.side_effect = [1, 2]
+        trans = TextDetRandomCrop(target_size=(3, 3))
+        offset = trans._sample_offset(self.data_info['gt_polygons'],
+                                      self.data_info['img'].shape[:2])
+        self.assertEqual(offset, (1, 2))
+
+        mock_sample.side_effect = [1]
+        mock_randint.side_effect = [1, 2]
+        trans = TextDetRandomCrop(target_size=(5, 5))
+        offset = trans._sample_offset(self.data_info['gt_polygons'],
+                                      self.data_info['img'].shape[:2])
+        self.assertEqual(offset, (0, 0))
+
+    def test_crop_image(self):
+        img = self.data_info['img']
+        offset = [0, 0]
+        target = [6, 6]
+        trans = TextDetRandomCrop(target_size=(3, 3))
+        crop, _ = trans._crop_img(img, offset, target)
+        self.assertEqual(img.shape, crop.shape)
+
+        target = [3, 2]
+        crop = trans._crop_img(img, offset, target)
+        self.assertTrue(
+            np.allclose(
+                np.array([[[1, 2, 3], [1, 2, 3]]]).transpose(1, 2, 0),
+                crop[0]))
+        self.assertTrue(np.allclose(crop[1], np.array([0, 0, 3, 2])))
+
+    def test_crop_polygons(self):
+        trans = TextDetRandomCrop(target_size=(3, 3))
+        crop_box = np.array([2, 3, 5, 5])
+        polygons = [
+            bbox2poly([2, 3, 4, 4]),
+            bbox2poly([0, 0, 1, 1]),
+            bbox2poly([1, 2, 4, 4]),
+            bbox2poly([0, 0, 10, 10])
+        ]
+        kept_polygons, kept_idx = trans._crop_polygons(polygons, crop_box)
+        target_polygons = [
+            bbox2poly([0, 0, 2, 1]),
+            bbox2poly([0, 0, 2, 1]),
+            bbox2poly([0, 0, 3, 2]),
+        ]
+        self.assertEqual(len(kept_polygons), 3)
+        self.assertEqual(kept_idx, [0, 2, 3])
+        self.assertTrue(
+            poly2shapely(target_polygons[0]).equals(
+                poly2shapely(kept_polygons[0])))
+        self.assertTrue(
+            poly2shapely(target_polygons[1]).equals(
+                poly2shapely(kept_polygons[1])))
+        self.assertTrue(
+            poly2shapely(target_polygons[2]).equals(
+                poly2shapely(kept_polygons[2])))
+
+    @mock.patch(
+        'mmocr.datasets.transforms.textdet_transforms.np.random.random_sample')
+    @mock.patch('mmocr.datasets.transforms.textdet_transforms.random.randint')
+    def test_transform(self, mock_randint, mock_sample):
+        # test target size is equal to image size
+        trans = TextDetRandomCrop(target_size=(5, 5))
+        data_info = self.data_info.copy()
+        results = trans(data_info)
+        self.assertDictEqual(results, data_info)
+
+        mock_sample.side_effect = [0.1]
+        mock_randint.side_effect = [1, 1]
+        trans = TextDetRandomCrop(target_size=(3, 3))
+        data_info = self.data_info.copy()
+        results = trans(data_info)
+        box_target = np.array([1, 1, 3, 3])
+        polygon_target = np.array([1, 1, 3, 1, 3, 3, 1, 3])
+        self.assertEqual(results['img'].shape, (3, 3, 1))
+        self.assertEqual(results['img_shape'], (3, 3))
+        self.assertTrue(
+            poly2shapely(bbox2poly(box_target)).equals(
+                poly2shapely(bbox2poly(results['gt_bboxes'][0]))))
+        self.assertTrue(
+            poly2shapely(polygon_target).equals(
+                poly2shapely(results['gt_polygons'][0])))
+
+        self.assertTrue(results['gt_bboxes_labels'] == np.array([0]))
+        self.assertTrue(results['gt_ignored'][0])
+
+    def test_repr(self):
+        transform = TextDetRandomCrop(
+            target_size=(512, 512), positive_sample_ratio=0.4)
+        self.assertEqual(
+            repr(transform), ('TextDetRandomCrop(target_size = (512, 512), '
+                              'positive_sample_ratio = 0.4)'))
+
+
+class TestTextDetRandomCropFlip(unittest.TestCase):
+
+    def setUp(self):
+        img = np.ones((10, 10, 3))
+        img[0, 0, :] = 0
+        self.data_info1 = dict(
+            img=copy.deepcopy(img),
+            gt_polygons=[np.array([0., 0., 0., 10., 10., 10., 10., 0.])],
+            img_shape=[10, 10])
+        self.data_info2 = dict(
+            img=copy.deepcopy(img),
+            gt_polygons=[np.array([1., 1., 1., 9., 9., 9., 9., 1.])],
+            gt_bboxes_labels=np.array([0], dtype=np.int64),
+            gt_ignored=np.array([True], dtype=np.bool_),
+            img_shape=[10, 10])
+        self.data_info3 = dict(
+            img=copy.deepcopy(img),
+            gt_polygons=[
+                np.array([0., 0., 4., 0., 4., 4., 0., 4.]),
+                np.array([4., 0., 8., 0., 8., 4., 4., 4.])
+            ],
+            gt_bboxes_labels=np.array([0, 0], dtype=np.int64),
+            gt_ignored=np.array([True, True], dtype=np.bool_),
+            img_shape=[10, 10])
+
+    def test_init(self):
+        # iter_num is int
+        transform = TextDetRandomCropFlip(iter_num=1)
+        self.assertEqual(transform.iter_num, 1)
+        # iter_num is float
+        with self.assertRaisesRegex(TypeError,
+                                    '`iter_num` should be an integer'):
+            transform = TextDetRandomCropFlip(iter_num=1.5)
+
+    @mock.patch(
+        'mmocr.datasets.transforms.textdet_transforms.np.random.randint')
+    def test_transforms(self, mock_sample):
+        mock_sample.side_effect = [0, 1, 2]
+        transform = TextDetRandomCropFlip(crop_ratio=1.0, iter_num=3)
+        results = transform(self.data_info2)
+        self.assertTrue(np.allclose(results['img'], self.data_info2['img']))
+        self.assertTrue(
+            np.allclose(results['gt_polygons'],
+                        self.data_info2['gt_polygons']))
+        self.assertEqual(
+            len(results['gt_bboxes']), len(results['gt_polygons']))
+        self.assertTrue(
+            poly2shapely(results['gt_polygons'][0]).equals(
+                poly2shapely(bbox2poly(results['gt_bboxes'][0]))))
+
+    def test_size(self):
+        transform = TextDetRandomCropFlip(crop_ratio=1.0, iter_num=3)
+        results = transform(self.data_info3)
+        self.assertEqual(
+            len(results['gt_bboxes']), len(results['gt_polygons']))
+        self.assertEqual(
+            len(results['gt_polygons']), len(results['gt_ignored']))
+        self.assertEqual(
+            len(results['gt_ignored']), len(results['gt_bboxes_labels']))
+
+    def test_generate_crop_target(self):
+        transform = TextDetRandomCropFlip(
+            crop_ratio=1.0, iter_num=3, pad_ratio=0.1)
+        h, w = self.data_info1['img_shape']
+        pad_h = int(h * transform.pad_ratio)
+        pad_w = int(w * transform.pad_ratio)
+        h_axis, w_axis = transform._generate_crop_target(
+            self.data_info1['img'], self.data_info1['gt_polygons'], pad_h,
+            pad_w)
+        self.assertTrue(np.allclose(h_axis, (0, 11)))
+        self.assertTrue(np.allclose(w_axis, (0, 11)))
+
+    def test_repr(self):
+        transform = TextDetRandomCropFlip(
+            pad_ratio=0.1,
+            crop_ratio=0.5,
+            iter_num=1,
+            min_area_ratio=0.2,
+            epsilon=1e-2)
+        self.assertEqual(
+            repr(transform),
+            ('TextDetRandomCropFlip(pad_ratio = 0.1, crop_ratio = 0.5, '
+             'iter_num = 1, min_area_ratio = 0.2, epsilon = 0.01)'))
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_textrecog_transforms.py b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_textrecog_transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..b602bc6c57c54e9708e15e706404f35b561bc887
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_textrecog_transforms.py
@@ -0,0 +1,212 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+
+import numpy as np
+from parameterized import parameterized
+
+from mmocr.datasets.transforms import (CropHeight, ImageContentJitter,
+                                       PadToWidth, PyramidRescale,
+                                       RescaleToHeight, ReversePixels,
+                                       TextRecogGeneralAug)
+
+
+class TestPadToWidth(unittest.TestCase):
+
+    def test_pad_to_width(self):
+        data_info = dict(img=np.random.random((16, 25, 3)))
+        # test size and size_divisor are both set
+        with self.assertRaises(AssertionError):
+            PadToWidth(width=10.5)
+
+        transform = PadToWidth(width=100)
+        results = transform(copy.deepcopy(data_info))
+        self.assertTupleEqual(results['img'].shape[:2], (16, 100))
+        self.assertEqual(results['valid_ratio'], 25 / 100)
+
+    def test_repr(self):
+        transform = PadToWidth(width=100)
+        self.assertEqual(
+            repr(transform),
+            ("PadToWidth(width=100, pad_cfg={'type': 'Pad'})"))
+
+
+class TestPyramidRescale(unittest.TestCase):
+
+    def setUp(self):
+        self.data_info = dict(img=np.random.random((128, 100, 3)))
+
+    def test_init(self):
+        # factor is int
+        transform = PyramidRescale(factor=4, randomize_factor=False)
+        self.assertEqual(transform.factor, 4)
+        # factor is float
+        with self.assertRaisesRegex(TypeError,
+                                    '`factor` should be an integer'):
+            PyramidRescale(factor=4.0)
+        # invalid base_shape
+        with self.assertRaisesRegex(TypeError,
+                                    '`base_shape` should be a list or tuple'):
+            PyramidRescale(base_shape=128)
+        with self.assertRaisesRegex(
+                ValueError, '`base_shape` should contain two integers'):
+            PyramidRescale(base_shape=(128, ))
+        with self.assertRaisesRegex(
+                ValueError, '`base_shape` should contain two integers'):
+            PyramidRescale(base_shape=(128.0, 2.0))
+        # invalid randomize_factor
+        with self.assertRaisesRegex(TypeError,
+                                    '`randomize_factor` should be a bool'):
+            PyramidRescale(randomize_factor=None)
+
+    def test_transform(self):
+        # test if the rescale keeps the original size
+        transform = PyramidRescale()
+        results = transform(copy.deepcopy(self.data_info))
+        self.assertEqual(results['img'].shape, (128, 100, 3))
+        # test factor = 0
+        transform = PyramidRescale(factor=0, randomize_factor=False)
+        results = transform(copy.deepcopy(self.data_info))
+        self.assertTrue(np.all(results['img'] == self.data_info['img']))
+
+    def test_repr(self):
+        transform = PyramidRescale(
+            factor=4, base_shape=(128, 512), randomize_factor=False)
+        self.assertEqual(
+            repr(transform),
+            ('PyramidRescale(factor = 4, randomize_factor = False, '
+             'base_w = 128, base_h = 512)'))
+
+
+class TestRescaleToHeight(unittest.TestCase):
+
+    def test_rescale_height(self):
+        data_info = dict(
+            img=np.random.random((16, 25, 3)),
+            gt_seg_map=np.random.random((16, 25, 3)),
+            gt_bboxes=np.array([[0, 0, 10, 10]]),
+            gt_keypoints=np.array([[[10, 10, 1]]]))
+        with self.assertRaises(AssertionError):
+            RescaleToHeight(height=20.9)
+        with self.assertRaises(AssertionError):
+            RescaleToHeight(height=20, min_width=20.9)
+        with self.assertRaises(AssertionError):
+            RescaleToHeight(height=20, max_width=20.9)
+        with self.assertRaises(AssertionError):
+            RescaleToHeight(height=20, width_divisor=0.5)
+        transform = RescaleToHeight(height=32)
+        results = transform(copy.deepcopy(data_info))
+        self.assertTupleEqual(results['img'].shape[:2], (32, 50))
+        self.assertTupleEqual(results['scale'], (50, 32))
+        self.assertTupleEqual(results['scale_factor'], (50 / 25, 32 / 16))
+
+        # test min_width
+        transform = RescaleToHeight(height=32, min_width=60)
+        results = transform(copy.deepcopy(data_info))
+        self.assertTupleEqual(results['img'].shape[:2], (32, 60))
+        self.assertTupleEqual(results['scale'], (60, 32))
+        self.assertTupleEqual(results['scale_factor'], (60 / 25, 32 / 16))
+
+        # test max_width
+        transform = RescaleToHeight(height=32, max_width=45)
+        results = transform(copy.deepcopy(data_info))
+        self.assertTupleEqual(results['img'].shape[:2], (32, 45))
+        self.assertTupleEqual(results['scale'], (45, 32))
+        self.assertTupleEqual(results['scale_factor'], (45 / 25, 32 / 16))
+
+        # test width_divisor
+        transform = RescaleToHeight(height=32, width_divisor=4)
+        results = transform(copy.deepcopy(data_info))
+        self.assertTupleEqual(results['img'].shape[:2], (32, 48))
+        self.assertTupleEqual(results['scale'], (48, 32))
+        self.assertTupleEqual(results['scale_factor'], (48 / 25, 32 / 16))
+
+    def test_repr(self):
+        transform = RescaleToHeight(height=32)
+        self.assertEqual(
+            repr(transform), ('RescaleToHeight(height=32, '
+                              'min_width=None, max_width=None, '
+                              'width_divisor=1, '
+                              "resize_cfg={'type': 'Resize', 'scale': 0})"))
+
+
+class TestTextRecogGeneralAug(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.transform = TextRecogGeneralAug()
+
+    @parameterized.expand([(np.random.random((3, 3, 3)), ),
+                           (np.random.random((10, 10, 3)), ),
+                           (np.random.random((30, 30, 3)), )])
+    def test_transform(self, img):
+        data_info = dict(img=img)
+        results = self.transform(copy.deepcopy(data_info))
+        self.assertEqual(results['img'].shape[:2], results['img_shape'])
+
+    def test_repr(self):
+        repr_str = self.transform.__repr__()
+        self.assertEqual(repr_str, 'TextRecogGeneralAug()')
+
+
+class TestCropHeight(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.data_info = dict(img=np.random.random((20, 20, 3)))
+
+    @parameterized.expand([
+        (3, 3),
+        (5, 10),
+    ])
+    def test_transform(self, min_pixels, max_pixels):
+        self.transform = CropHeight(
+            min_pixels=min_pixels, max_pixels=max_pixels)
+        results = self.transform(copy.deepcopy(self.data_info))
+        self.assertEqual(results['img'].shape[:2], results['img_shape'])
+        h_diff = self.data_info['img'].shape[0] - results['img_shape'][0]
+        self.assertGreaterEqual(h_diff, min_pixels)
+        self.assertLessEqual(h_diff, max_pixels)
+
+    def test_invalid(self):
+        with self.assertRaises(AssertionError):
+            self.transform = CropHeight(min_pixels=10, max_pixels=9)
+
+    def test_repr(self):
+        transform = CropHeight(min_pixels=2, max_pixels=10)
+        repr_str = transform.__repr__()
+        self.assertEqual(repr_str, 'CropHeight(min_pixels = 2, '
+                         'max_pixels = 10)')
+
+
+class TestImageContentJitter(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.transform = ImageContentJitter()
+
+    @parameterized.expand([(np.random.random((3, 3, 3)), ),
+                           (np.random.random((10, 10, 3)), ),
+                           (np.random.random((30, 30, 3)), )])
+    def test_transform(self, img):
+        data_info = dict(img=img)
+        self.transform(copy.deepcopy(data_info))
+
+    def test_repr(self):
+        repr_str = self.transform.__repr__()
+        self.assertEqual(repr_str, 'ImageContentJitter()')
+
+
+class TestReversePixels(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.transform = ReversePixels()
+
+    @parameterized.expand([(np.random.random((3, 3, 3)), ),
+                           (np.random.random((10, 10, 3)), ),
+                           (np.random.random((30, 30, 3)), )])
+    def test_transform(self, img):
+        data_info = dict(img=img)
+        results = self.transform(copy.deepcopy(data_info))
+        self.assertTrue(np.array_equal(results['img'], 255. - img))
+
+    def test_repr(self):
+        repr_str = self.transform.__repr__()
+        self.assertEqual(repr_str, 'ReversePixels()')
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_wrappers.py b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_wrappers.py
new file mode 100644
index 0000000000000000000000000000000000000000..5195364069078c76568684031c66fe7425019b4b
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_transforms/test_wrappers.py
@@ -0,0 +1,196 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+from typing import Dict, List, Optional
+
+import numpy as np
+from shapely.geometry import Polygon
+
+from mmocr.datasets.transforms import (ConditionApply, ImgAugWrapper,
+                                       TorchVisionWrapper)
+
+
+class TestImgAug(unittest.TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            ImgAugWrapper(args=[])
+        with self.assertRaises(AssertionError):
+            ImgAugWrapper(args=['test'])
+
+    def _create_dummy_data(self):
+        img = np.random.rand(50, 50, 3)
+        poly = np.array([[[0, 0, 50, 0, 50, 50, 0, 50]],
+                         [[20, 20, 50, 20, 50, 50, 20, 50]]])
+        box = np.array([[0, 0, 50, 50], [20, 20, 50, 50]])
+        # It shall always be 0 in MMOCR, but we assign different labels to
+        # dummy instances for testing
+        labels = np.array([0, 1], dtype=np.int64)
+        ignored = np.array([False, True], dtype=bool)
+        texts = ['text1', 'text2']
+        return dict(
+            img=img,
+            img_shape=(50, 50),
+            gt_polygons=poly,
+            gt_bboxes=box,
+            gt_bboxes_labels=labels,
+            gt_ignored=ignored,
+            gt_texts=texts)
+
+    def assertPolyEqual(self, poly1: List[np.ndarray],
+                        poly2: List[np.ndarray]) -> None:
+        for p1, p2 in zip(poly1, poly2):
+            self.assertTrue(
+                Polygon(p1.reshape(-1, 2)).equals(Polygon(p2.reshape(-1, 2))))
+
+    def assert_result_equal(self,
+                            results: Dict,
+                            poly_targets: List[np.ndarray],
+                            bbox_targets: np.ndarray,
+                            bbox_label_targets: np.ndarray,
+                            ignore_targets: np.ndarray,
+                            text_targets: Optional[List[str]] = None) -> None:
+        self.assertPolyEqual(poly_targets, results['gt_polygons'])
+        self.assertTrue(np.array_equal(bbox_targets, results['gt_bboxes']))
+        self.assertTrue(
+            np.array_equal(bbox_label_targets, results['gt_bboxes_labels']))
+        self.assertTrue(np.array_equal(ignore_targets, results['gt_ignored']))
+        self.assertEqual(text_targets, results['gt_texts'])
+        self.assertEqual(results['img_shape'],
+                         (results['img'].shape[0], results['img'].shape[1]))
+
+    def test_transform(self):
+
+        # Test empty transform
+        imgaug_transform = ImgAugWrapper(fix_poly_trans=None)
+        results = self._create_dummy_data()
+        origin_results = copy.deepcopy(results)
+        results = imgaug_transform(results)
+        self.assert_result_equal(results, origin_results['gt_polygons'],
+                                 origin_results['gt_bboxes'],
+                                 origin_results['gt_bboxes_labels'],
+                                 origin_results['gt_ignored'],
+                                 origin_results['gt_texts'])
+
+        args = [dict(cls='Affine', translate_px=dict(x=-10, y=-10))]
+        imgaug_transform = ImgAugWrapper(args, fix_poly_trans=None)
+        results = self._create_dummy_data()
+        results = imgaug_transform(results)
+
+        # Polygons and bboxes are partially outside the image after
+        # transformation
+        poly_target = [
+            np.array([0, 0, 40, 0, 40, 40, 0, 40]),
+            np.array([10, 10, 40, 10, 40, 40, 10, 40])
+        ]
+        box_target = np.array([[0, 0, 40, 40], [10, 10, 40, 40]])
+        label_target = np.array([0, 1], dtype=np.int64)
+        ignored = np.array([False, True], dtype=bool)
+        texts = ['text1', 'text2']
+        self.assert_result_equal(results, poly_target, box_target,
+                                 label_target, ignored, texts)
+
+        # Some polygons and bboxes are no longer inside the image after
+        # transformation
+        args = [
+            dict(cls='Affine', translate_px=dict(x=30, y=30)), ['Fliplr', 1]
+        ]
+        poly_target = [np.array([0, 30, 20, 30, 20, 50, 0, 50])]
+        box_target = np.array([[0, 30, 20, 50]])
+        label_target = np.array([0], dtype=np.int64)
+        ignored = np.array([False], dtype=bool)
+        texts = ['text1']
+        imgaug_transform = ImgAugWrapper(args, fix_poly_trans=None)
+        results = self._create_dummy_data()
+        results = imgaug_transform(results)
+        self.assert_result_equal(results, poly_target, box_target,
+                                 label_target, ignored, texts)
+
+        # All polygons and bboxes are no longer inside the image after
+        # transformation
+
+        # When some transforms result in empty polygons
+        args = [dict(cls='Affine', translate_px=dict(x=100, y=100))]
+        results = self._create_dummy_data()
+        invalid_transform = ImgAugWrapper(args)
+        results = invalid_transform(results)
+        self.assertIsNone(results)
+
+        # Everything should work well without gt_texts
+        results = self._create_dummy_data()
+        del results['gt_texts']
+        results = imgaug_transform(results)
+        self.assertNotIn('gt_texts', results)
+
+        # Everything should work well without keys required from text detection
+        results = imgaug_transform(
+            dict(
+                img=np.random.rand(10, 20, 3),
+                img_shape=(10, 20),
+                gt_texts=['text1', 'text2']))
+        self.assertEqual(results['gt_texts'], ['text1', 'text2'])
+
+    def test_repr(self):
+        args = [['Resize', [0.5, 3.0]], ['Fliplr', 0.5]]
+        transform = ImgAugWrapper(args)
+        print(repr(transform))
+        self.assertEqual(
+            repr(transform),
+            ("ImgAugWrapper(args = [['Resize', [0.5, 3.0]], ['Fliplr', 0.5]], "
+             "fix_poly_trans = {'type': 'FixInvalidPolygon'})"))
+
+
+class TestTorchVisionWrapper(unittest.TestCase):
+
+    def test_transform(self):
+        x = {'img': np.ones((128, 100, 3), dtype=np.uint8)}
+        # object not found error
+        with self.assertRaises(Exception):
+            TorchVisionWrapper(op='NonExist')
+        with self.assertRaises(TypeError):
+            TorchVisionWrapper()
+        f = TorchVisionWrapper('Grayscale')
+        with self.assertRaises(AssertionError):
+            f({})
+        results = f(x)
+        assert results['img'].shape == (128, 100)
+        assert results['img_shape'] == (128, 100)
+
+    def test_repr(self):
+        f = TorchVisionWrapper('Grayscale', num_output_channels=3)
+        self.assertEqual(
+            repr(f),
+            'TorchVisionWrapper(op = Grayscale, num_output_channels = 3)')
+
+
+class TestConditionApply(unittest.TestCase):
+
+    def test_transform(self):
+        dummy_result = dict(img_shape=(100, 200), img=np.zeros((100, 200, 3)))
+        resize = dict(type='Resize', scale=(40, 50), keep_ratio=False)
+
+        trans = ConditionApply(
+            "results['img_shape'][0] > 80", true_transforms=resize)
+        results = trans(dummy_result)
+        self.assertEqual(results['img_shape'], (50, 40))
+        dummy_result = dict(img_shape=(100, 200), img=np.zeros((100, 200, 3)))
+        trans = ConditionApply(
+            "results['img_shape'][0] < 80", false_transforms=resize)
+        results = trans(dummy_result)
+        self.assertEqual(results['img_shape'], (50, 40))
+        dummy_result = dict(img_shape=(100, 200), img=np.zeros((100, 200, 3)))
+        trans = ConditionApply("results['img_shape'][0] < 80")
+        results = trans(dummy_result)
+        self.assertEqual(results['img_shape'], (100, 200))
+
+    def test_repr(self):
+        resize = dict(type='Resize', scale=(40, 50), keep_ratio=False)
+        trans = ConditionApply(
+            "results['img_shape'][0] < 80", true_transforms=resize)
+        self.assertEqual(
+            repr(trans),
+            "ConditionApply(condition = results['img_shape'][0] < 80, "
+            'true_transforms = Compose(\n    Resize(scale=(40, 50), '
+            'scale_factor=None, keep_ratio=False, clip_object_border=True), '
+            'backend=cv2), interpolation=bilinear)\n), '
+            'false_transforms = Compose(\n))')
diff --git a/mmocr-dev-1.x/tests/test_datasets/test_wildreceipt_dataset.py b/mmocr-dev-1.x/tests/test_datasets/test_wildreceipt_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..6e9eda753698d2b7bbce249192568ebfe6899059
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_datasets/test_wildreceipt_dataset.py
@@ -0,0 +1,40 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+from mmocr.datasets import WildReceiptDataset
+
+
+class TestWildReceiptDataset(unittest.TestCase):
+
+    def setUp(self):
+        metainfo = 'tests/data/kie_toy_dataset/wildreceipt/class_list.txt'
+        self.dataset = WildReceiptDataset(
+            data_prefix=dict(img_path='data/'),
+            ann_file='tests/data/kie_toy_dataset/wildreceipt/data.txt',
+            metainfo=metainfo,
+            pipeline=[],
+            serialize_data=False,
+            lazy_init=False)
+
+    def test_init(self):
+        self.assertEqual(self.dataset.metainfo['category'][0], {
+            'id': '0',
+            'name': 'Ignore'
+        })
+        self.assertEqual(self.dataset.metainfo['task_name'], 'KIE')
+        self.assertEqual(self.dataset.metainfo['dataset_type'],
+                         'WildReceiptDataset')
+
+    def test_getitem(self):
+        data = self.dataset.__getitem__(0)
+
+        instance = data['instances'][0]
+        self.assertIsInstance(instance['bbox_label'], int)
+        self.assertIsInstance(instance['edge_label'], int)
+        self.assertIsInstance(instance['text'], str)
+        self.assertEqual(instance['bbox'].shape, (4, ))
+        self.assertEqual(data['img_shape'], (1200, 1600))
+        self.assertEqual(
+            data['img_path'],
+            'data/tests/data/kie_toy_dataset/wildreceipt/1.jpeg'  # noqa
+        )
diff --git a/mmocr-dev-1.x/tests/test_engine/test_hooks/test_visualization_hook.py b/mmocr-dev-1.x/tests/test_engine/test_hooks/test_visualization_hook.py
new file mode 100644
index 0000000000000000000000000000000000000000..5b4591794123ffa83a45c1ab9b71bc151a31f9ae
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_engine/test_hooks/test_visualization_hook.py
@@ -0,0 +1,79 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import shutil
+import time
+from unittest import TestCase
+from unittest.mock import Mock
+
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.engine.hooks import VisualizationHook
+from mmocr.structures import TextDetDataSample
+from mmocr.visualization import TextDetLocalVisualizer
+
+
+def _rand_bboxes(num_boxes, h, w):
+    cx, cy, bw, bh = torch.rand(num_boxes, 4).T
+
+    tl_x = ((cx * w) - (w * bw / 2)).clamp(0, w).unsqueeze(0)
+    tl_y = ((cy * h) - (h * bh / 2)).clamp(0, h).unsqueeze(0)
+    br_x = ((cx * w) + (w * bw / 2)).clamp(0, w).unsqueeze(0)
+    br_y = ((cy * h) + (h * bh / 2)).clamp(0, h).unsqueeze(0)
+
+    bboxes = torch.cat([tl_x, tl_y, br_x, br_y], dim=0).T
+    return bboxes
+
+
+class TestVisualizationHook(TestCase):
+
+    def setUp(self) -> None:
+
+        data_sample = TextDetDataSample()
+        data_sample.set_metainfo({
+            'img_path':
+            osp.join(
+                osp.dirname(__file__),
+                '../../data/det_toy_dataset/imgs/test/img_1.jpg')
+        })
+
+        pred_instances = InstanceData()
+        pred_instances.bboxes = _rand_bboxes(5, 10, 12)
+        pred_instances.labels = torch.randint(0, 2, (5, ))
+        pred_instances.scores = torch.rand((5, ))
+
+        data_sample.pred_instances = pred_instances
+        self.outputs = [data_sample] * 2
+        self.data_batch = None
+
+    def test_after_val_iter(self):
+        timestamp = time.strftime('%Y%m%d_%H%M%S', time.localtime())
+        TextDetLocalVisualizer.get_instance(
+            'visualizer_val',
+            vis_backends=[dict(type='LocalVisBackend', img_save_dir='')],
+            save_dir=timestamp)
+        runner = Mock()
+        runner.iter = 1
+        hook = VisualizationHook(enable=True, interval=1)
+        self.assertFalse(osp.exists(timestamp))
+        hook.after_val_iter(runner, 1, self.data_batch, self.outputs)
+        self.assertTrue(osp.exists(timestamp))
+        shutil.rmtree(timestamp)
+
+    def test_after_test_iter(self):
+        timestamp = time.strftime('%Y%m%d_%H%M%S', time.localtime())
+        TextDetLocalVisualizer.get_instance(
+            'visualizer_test',
+            vis_backends=[dict(type='LocalVisBackend', img_save_dir='')],
+            save_dir=timestamp)
+        runner = Mock()
+        runner.iter = 1
+
+        hook = VisualizationHook(enable=False)
+        hook.after_test_iter(runner, 1, self.data_batch, self.outputs)
+        self.assertFalse(osp.exists(timestamp))
+
+        hook = VisualizationHook(enable=True)
+        hook.after_test_iter(runner, 1, self.data_batch, self.outputs)
+        self.assertTrue(osp.exists(timestamp))
+        shutil.rmtree(timestamp)
diff --git a/mmocr-dev-1.x/tests/test_evaluation/test_evaluator/test_multi_datasets_evaluator.py b/mmocr-dev-1.x/tests/test_evaluation/test_evaluator/test_multi_datasets_evaluator.py
new file mode 100644
index 0000000000000000000000000000000000000000..0b2ae3d7323cef792c5531f5c15001d9ca8b9e67
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_evaluation/test_evaluator/test_multi_datasets_evaluator.py
@@ -0,0 +1,128 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+import math
+from typing import Dict, List, Optional
+from unittest import TestCase
+
+import numpy as np
+from mmengine.evaluator import BaseMetric
+from mmengine.registry import METRICS, DefaultScope
+from mmengine.structures import BaseDataElement
+
+from mmocr.evaluation import MultiDatasetsEvaluator
+
+
+@METRICS.register_module()
+class ToyMetric(BaseMetric):
+    """Evaluator that calculates the metric `accuracy` from predictions and
+    labels. Alternatively, this evaluator can return arbitrary dummy metrics
+    set in the config.
+
+    Default prefix: Toy
+
+    Metrics:
+        - accuracy (float): The classification accuracy. Only when
+            `dummy_metrics` is None.
+        - size (int): The number of test samples. Only when `dummy_metrics`
+            is None.
+
+        If `dummy_metrics` is set as a dict in the config, it will be
+        returned as the metrics and override `accuracy` and `size`.
+    """
+
+    default_prefix = None
+
+    def __init__(self,
+                 collect_device: str = 'cpu',
+                 prefix: Optional[str] = 'Toy',
+                 dummy_metrics: Optional[Dict] = None):
+        super().__init__(collect_device=collect_device, prefix=prefix)
+        self.dummy_metrics = dummy_metrics
+
+    def process(self, data_batch, predictions):
+        results = [{
+            'pred': prediction['pred'],
+            'label': prediction['label']
+        } for prediction in predictions]
+        self.results.extend(results)
+
+    def compute_metrics(self, results: List):
+        if self.dummy_metrics is not None:
+            assert isinstance(self.dummy_metrics, dict)
+            return self.dummy_metrics.copy()
+
+        pred = np.array([result['pred'] for result in results])
+        label = np.array([result['label'] for result in results])
+        acc = (pred == label).sum() / pred.size
+
+        metrics = {
+            'accuracy': acc,
+            'size': pred.size,  # To check the number of testing samples
+        }
+
+        return metrics
+
+
+def generate_test_results(size, batch_size, pred, label):
+    num_batch = math.ceil(size / batch_size)
+    bs_residual = size % batch_size
+    for i in range(num_batch):
+        bs = bs_residual if i == num_batch - 1 else batch_size
+        data_batch = {
+            'inputs': [np.zeros((3, 10, 10)) for _ in range(bs)],
+            'data_samples': [BaseDataElement(label=label) for _ in range(bs)]
+        }
+        predictions = [
+            BaseDataElement(pred=pred, label=label) for _ in range(bs)
+        ]
+        yield (data_batch, predictions)
+
+
+class TestMultiDatasetsEvaluator(TestCase):
+
+    def test_composed_metrics(self):
+        DefaultScope.get_instance('mmocr_metric', scope_name='mmocr')
+        cfg = [
+            dict(type='ToyMetric'),
+            dict(type='ToyMetric', dummy_metrics=dict(mAP=0.0))
+        ]
+
+        evaluator = MultiDatasetsEvaluator(cfg, dataset_prefixes=['Fake'])
+        evaluator.dataset_meta = {}
+        size = 10
+        batch_size = 4
+
+        for data_samples, predictions in generate_test_results(
+                size, batch_size, pred=1, label=1):
+            evaluator.process(predictions, data_samples)
+
+        metrics = evaluator.evaluate(size=size)
+
+        self.assertAlmostEqual(metrics['Fake/Toy/accuracy'], 1.0)
+        self.assertAlmostEqual(metrics['Fake/Toy/mAP'], 0.0)
+        self.assertEqual(metrics['Fake/Toy/size'], size)
+        with self.assertWarns(Warning):
+            evaluator.evaluate(size=0)
+
+        cfg = [dict(type='ToyMetric'), dict(type='ToyMetric')]
+
+        evaluator = MultiDatasetsEvaluator(cfg, dataset_prefixes=['Fake'])
+        evaluator.dataset_meta = {}
+
+        for data_samples, predictions in generate_test_results(
+                size, batch_size, pred=1, label=1):
+            evaluator.process(predictions, data_samples)
+        with self.assertRaises(ValueError):
+            evaluator.evaluate(size=size)
+
+        cfg = [dict(type='ToyMetric'), dict(type='ToyMetric', prefix=None)]
+
+        evaluator = MultiDatasetsEvaluator(cfg, dataset_prefixes=['Fake'])
+        evaluator.dataset_meta = {}
+
+        for data_samples, predictions in generate_test_results(
+                size, batch_size, pred=1, label=1):
+            evaluator.process(predictions, data_samples)
+        metrics = evaluator.evaluate(size=size)
+        self.assertIn('Fake/Toy/accuracy', metrics)
+        self.assertIn('Fake/accuracy', metrics)
diff --git a/mmocr-dev-1.x/tests/test_evaluation/test_functional/test_hmean.py b/mmocr-dev-1.x/tests/test_evaluation/test_functional/test_hmean.py
new file mode 100644
index 0000000000000000000000000000000000000000..9fdde22809394e7a12ab5621080a54f1455a1236
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_evaluation/test_functional/test_hmean.py
@@ -0,0 +1,23 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+from mmocr.evaluation.functional import compute_hmean
+
+
+class TestHmean(TestCase):
+
+    def test_compute_hmean(self):
+        with self.assertRaises(AssertionError):
+            compute_hmean(0, 0, 0.0, 0)
+        with self.assertRaises(AssertionError):
+            compute_hmean(0, 0, 0, 0.0)
+        with self.assertRaises(AssertionError):
+            compute_hmean([1], 0, 0, 0)
+        with self.assertRaises(AssertionError):
+            compute_hmean(0, [1], 0, 0)
+
+        _, _, hmean = compute_hmean(2, 2, 2, 2)
+        self.assertEqual(hmean, 1)
+
+        _, _, hmean = compute_hmean(0, 0, 2, 2)
+        self.assertEqual(hmean, 0)
diff --git a/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_f_metric.py b/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_f_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..5529580b166e3040bb2b02930d72499eb967bc2e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_f_metric.py
@@ -0,0 +1,157 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.evaluation import F1Metric
+from mmocr.structures import KIEDataSample
+
+
+class TestF1Metric(unittest.TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            F1Metric(num_classes='3')
+
+        with self.assertRaises(AssertionError):
+            F1Metric(num_classes=3, ignored_classes=[1], cared_classes=[0])
+
+        with self.assertRaises(AssertionError):
+            F1Metric(num_classes=3, ignored_classes=1)
+
+        with self.assertRaises(AssertionError):
+            F1Metric(num_classes=2, mode=1)
+
+        with self.assertRaises(AssertionError):
+            F1Metric(num_classes=1, mode='1')
+
+    def test_macro_f1(self):
+        mode = 'macro'
+        preds_cases = [
+            [
+                KIEDataSample(
+                    pred_instances=InstanceData(
+                        labels=torch.LongTensor([0, 1, 2])),
+                    gt_instances=InstanceData(
+                        labels=torch.LongTensor([0, 1, 4])))
+            ],
+            [
+                KIEDataSample(
+                    gt_instances=InstanceData(labels=torch.LongTensor([0, 1])),
+                    pred_instances=InstanceData(
+                        labels=torch.LongTensor([0, 1]))),
+                KIEDataSample(
+                    gt_instances=InstanceData(labels=torch.LongTensor([4])),
+                    pred_instances=InstanceData(labels=torch.LongTensor([2])))
+            ]
+        ]
+
+        # num_classes < the maximum label index
+        metric = F1Metric(num_classes=3, ignored_classes=[1])
+        metric.process(None, preds_cases[0])
+        with self.assertRaises(AssertionError):
+            metric.evaluate(size=1)
+
+        for preds in preds_cases:
+            metric = F1Metric(num_classes=5, mode=mode)
+            metric.process(None, preds)
+            result = metric.evaluate(size=len(preds))
+            self.assertAlmostEqual(result['kie/macro_f1'], 0.4)
+
+            # Test ignored_classes
+            metric = F1Metric(num_classes=5, ignored_classes=[1], mode=mode)
+            metric.process(None, preds)
+            result = metric.evaluate(size=len(preds))
+            self.assertAlmostEqual(result['kie/macro_f1'], 0.25)
+
+            # Test cared_classes
+            metric = F1Metric(
+                num_classes=5, cared_classes=[0, 2, 3, 4], mode=mode)
+            metric.process(None, preds)
+            result = metric.evaluate(size=len(preds))
+            self.assertAlmostEqual(result['kie/macro_f1'], 0.25)
+
+    def test_micro_f1(self):
+        mode = 'micro'
+        preds_cases = [[
+            KIEDataSample(
+                gt_instances=InstanceData(
+                    labels=torch.LongTensor([0, 1, 0, 1, 2])),
+                pred_instances=InstanceData(
+                    labels=torch.LongTensor([0, 1, 2, 2, 0])))
+        ],
+                       [
+                           KIEDataSample(
+                               gt_instances=InstanceData(
+                                   labels=torch.LongTensor([0, 1, 2])),
+                               pred_instances=InstanceData(
+                                   labels=torch.LongTensor([0, 1, 0]))),
+                           KIEDataSample(
+                               gt_instances=InstanceData(
+                                   labels=torch.LongTensor([0, 1])),
+                               pred_instances=InstanceData(
+                                   labels=torch.LongTensor([2, 2])))
+                       ]]
+
+        # num_classes < the maximum label index
+        metric = F1Metric(num_classes=1, ignored_classes=[0], mode=mode)
+        metric.process(None, preds_cases[0])
+        with self.assertRaises(AssertionError):
+            metric.evaluate(size=1)
+
+        for preds in preds_cases:
+            # class 0: tp: 1, fp: 1, fn: 1
+            # class 1: tp: 1, fp: 1, fn: 0
+            # class 2: tp: 0, fp: 1, fn: 2
+            # overall: tp: 2, fp: 3, fn: 3
+            # f1: 0.4
+
+            metric = F1Metric(num_classes=3, mode=mode)
+            metric.process(None, preds)
+            result = metric.evaluate(size=len(preds))
+            self.assertAlmostEqual(result['kie/micro_f1'], 0.4, delta=0.01)
+
+            metric = F1Metric(num_classes=5, mode=mode)
+            metric.process(None, preds)
+            result = metric.evaluate(size=len(preds))
+            self.assertAlmostEqual(result['kie/micro_f1'], 0.4, delta=0.01)
+
+            # class 0: tp: 1, fp: 1, fn: 1
+            # class 2: tp: 0, fp: 1, fn: 2
+            # overall: tp: 1, fp: 2, fn: 3
+            # f1: 0.285
+
+            metric = F1Metric(num_classes=5, ignored_classes=[1], mode=mode)
+            metric.process(None, preds)
+            result = metric.evaluate(size=len(preds))
+            self.assertAlmostEqual(result['kie/micro_f1'], 0.285, delta=0.001)
+
+            metric = F1Metric(
+                num_classes=5, cared_classes=[0, 2, 3, 4], mode=mode)
+            metric.process(None, preds)
+            result = metric.evaluate(size=len(preds))
+            self.assertAlmostEqual(result['kie/micro_f1'], 0.285, delta=0.001)
+
+    def test_arguments(self):
+        mode = ['micro', 'macro']
+        preds = [
+            KIEDataSample(
+                gt_instances=InstanceData(
+                    test_labels=torch.LongTensor([0, 1, 0, 1, 2])),
+                pred_instances=InstanceData(
+                    test_labels=torch.LongTensor([0, 1, 2, 2, 0])))
+        ]
+
+        # class 0: tp: 1, fp: 1, fn: 1
+        # class 1: tp: 1, fp: 1, fn: 0
+        # class 2: tp: 0, fp: 1, fn: 2
+        # overall: tp: 2, fp: 3, fn: 3
+        # micro_f1: 0.4
+        # macro_f1:
+
+        metric = F1Metric(num_classes=3, mode=mode, key='test_labels')
+        metric.process(None, preds)
+        result = metric.evaluate(size=1)
+        self.assertAlmostEqual(result['kie/micro_f1'], 0.4, delta=0.01)
+        self.assertAlmostEqual(result['kie/macro_f1'], 0.39, delta=0.01)
diff --git a/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_hmean_iou_metric.py b/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_hmean_iou_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..6aa31666d599eec46c3dadcded88af1938e1120f
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_hmean_iou_metric.py
@@ -0,0 +1,100 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.evaluation import HmeanIOUMetric
+from mmocr.structures import TextDetDataSample
+
+
+class TestHmeanIOU(unittest.TestCase):
+
+    def setUp(self):
+        """Create dummy test data.
+
+        We denote the polygons as the following.
+        gt_polys: gt_a, gt_b, gt_c, gt_d_ignored
+        pred_polys: pred_a, pred_b, pred_c, pred_d
+
+        There are two pairs of matches: (gt_a, pred_a) and (gt_b, pred_b),
+        because the IoU > threshold.
+
+        gt_c and pred_c do not match any of the polygons.
+
+        pred_d is ignored in the recall computation since it overlaps
+        gt_d_ignored and the precision > ignore_precision_thr.
+        """
+        data_sample = TextDetDataSample()
+        gt_instances = InstanceData()
+        gt_instances.polygons = [
+            torch.FloatTensor([0, 0, 1, 0, 1, 1, 0, 1]),
+            torch.FloatTensor([2, 0, 3, 0, 3, 1, 2, 1]),
+            torch.FloatTensor([10, 0, 11, 0, 11, 1, 10, 1]),
+            torch.FloatTensor([1, 0, 2, 0, 2, 1, 1, 1]),
+        ]
+        gt_instances.ignored = np.bool_([False, False, False, True])
+        pred_instances = InstanceData()
+        pred_instances.polygons = [
+            torch.FloatTensor([0, 0, 1, 0, 1, 1, 0, 1]),
+            torch.FloatTensor([2, 0.1, 3, 0.1, 3, 1.1, 2, 1.1]),
+            torch.FloatTensor([1, 1, 2, 1, 2, 2, 1, 2]),
+            torch.FloatTensor([1, -0.5, 2, -0.5, 2, 0.5, 1, 0.5]),
+        ]
+        pred_instances.scores = torch.FloatTensor([1, 1, 1, 0.001])
+        data_sample.gt_instances = gt_instances
+        data_sample.pred_instances = pred_instances
+        predictions = [data_sample.to_dict()]
+
+        data_sample = TextDetDataSample()
+        gt_instances = InstanceData()
+        gt_instances.polygons = [torch.FloatTensor([0, 0, 1, 0, 1, 1, 0, 1])]
+        gt_instances.ignored = np.bool_([False])
+        pred_instances = InstanceData()
+        pred_instances.polygons = [
+            torch.FloatTensor([0, 0, 1, 0, 1, 1, 0, 1]),
+            torch.FloatTensor([0, 0, 1, 0, 1, 1, 0, 1])
+        ]
+        pred_instances.scores = torch.FloatTensor([1, 0.95])
+        data_sample.gt_instances = gt_instances
+        data_sample.pred_instances = pred_instances
+        predictions.append(data_sample.to_dict())
+
+        self.predictions = predictions
+
+    def test_hmean_iou(self):
+
+        metric = HmeanIOUMetric(prefix='mmocr')
+        metric.process(None, self.predictions)
+        eval_results = metric.evaluate(size=2)
+
+        precision = 3 / 5
+        recall = 3 / 4
+        hmean = 2 * precision * recall / (precision + recall)
+        target_result = {
+            'mmocr/precision': precision,
+            'mmocr/recall': recall,
+            'mmocr/hmean': hmean
+        }
+        self.assertDictEqual(target_result, eval_results)
+
+    def test_compute_metrics(self):
+        # Test different strategies
+        fake_results = [
+            dict(
+                iou_metric=np.array([[1, 1], [1, 0]]),
+                pred_scores=np.array([1., 1.]))
+        ]
+
+        # Vanilla
+        metric = HmeanIOUMetric(strategy='vanilla')
+        eval_results = metric.compute_metrics(fake_results)
+        target_result = {'precision': 0.5, 'recall': 0.5, 'hmean': 0.5}
+        self.assertDictEqual(target_result, eval_results)
+
+        # Max matching
+        metric = HmeanIOUMetric(strategy='max_matching')
+        eval_results = metric.compute_metrics(fake_results)
+        target_result = {'precision': 1, 'recall': 1, 'hmean': 1}
+        self.assertDictEqual(target_result, eval_results)
diff --git a/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_recog_metric.py b/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_recog_metric.py
new file mode 100644
index 0000000000000000000000000000000000000000..cd982b160aa2c9277e5ef0f234d1a73bf2fd075f
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_evaluation/test_metrics/test_recog_metric.py
@@ -0,0 +1,124 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+from mmengine.structures import LabelData
+
+from mmocr.evaluation import CharMetric, OneMinusNEDMetric, WordMetric
+from mmocr.structures import TextRecogDataSample
+
+
+class TestWordMetric(unittest.TestCase):
+
+    def setUp(self):
+
+        self.pred = []
+        data_sample = TextRecogDataSample()
+        pred_text = LabelData()
+        pred_text.item = 'hello'
+        data_sample.pred_text = pred_text
+        gt_text = LabelData()
+        gt_text.item = 'hello'
+        data_sample.gt_text = gt_text
+        self.pred.append(data_sample)
+        data_sample = TextRecogDataSample()
+        pred_text = LabelData()
+        pred_text.item = 'hello'
+        data_sample.pred_text = pred_text
+        gt_text = LabelData()
+        gt_text.item = 'HELLO'
+        data_sample.gt_text = gt_text
+        self.pred.append(data_sample)
+        data_sample = TextRecogDataSample()
+        pred_text = LabelData()
+        pred_text.item = 'hello'
+        data_sample.pred_text = pred_text
+        gt_text = LabelData()
+        gt_text.item = '$HELLO$'
+        data_sample.gt_text = gt_text
+        self.pred.append(data_sample)
+
+    def test_word_acc_metric(self):
+        metric = WordMetric(mode='exact')
+        metric.process(None, self.pred)
+        eval_res = metric.evaluate(size=3)
+        self.assertAlmostEqual(eval_res['recog/word_acc'], 1. / 3, 4)
+
+    def test_word_acc_ignore_case_metric(self):
+        metric = WordMetric(mode='ignore_case')
+        metric.process(None, self.pred)
+        eval_res = metric.evaluate(size=3)
+        self.assertAlmostEqual(eval_res['recog/word_acc_ignore_case'], 2. / 3,
+                               4)
+
+    def test_word_acc_ignore_case_symbol_metric(self):
+        metric = WordMetric(mode='ignore_case_symbol')
+        metric.process(None, self.pred)
+        eval_res = metric.evaluate(size=3)
+        self.assertEqual(eval_res['recog/word_acc_ignore_case_symbol'], 1.0)
+
+    def test_all_metric(self):
+        metric = WordMetric(
+            mode=['exact', 'ignore_case', 'ignore_case_symbol'])
+        metric.process(None, self.pred)
+        eval_res = metric.evaluate(size=3)
+        self.assertAlmostEqual(eval_res['recog/word_acc'], 1. / 3, 4)
+        self.assertAlmostEqual(eval_res['recog/word_acc_ignore_case'], 2. / 3,
+                               4)
+        self.assertEqual(eval_res['recog/word_acc_ignore_case_symbol'], 1.0)
+
+
+class TestCharMetric(unittest.TestCase):
+
+    def setUp(self):
+        self.pred = []
+        data_sample = TextRecogDataSample()
+        pred_text = LabelData()
+        pred_text.item = 'helL'
+        data_sample.pred_text = pred_text
+        gt_text = LabelData()
+        gt_text.item = 'hello'
+        data_sample.gt_text = gt_text
+        self.pred.append(data_sample)
+        data_sample = TextRecogDataSample()
+        pred_text = LabelData()
+        pred_text.item = 'HEL'
+        data_sample.pred_text = pred_text
+        gt_text = LabelData()
+        gt_text.item = 'HELLO'
+        data_sample.gt_text = gt_text
+        self.pred.append(data_sample)
+
+    def test_char_recall_precision_metric(self):
+        metric = CharMetric()
+        metric.process(None, self.pred)
+        eval_res = metric.evaluate(size=2)
+        self.assertEqual(eval_res['recog/char_recall'], 0.7)
+        self.assertEqual(eval_res['recog/char_precision'], 1)
+
+
+class TestOneMinusNED(unittest.TestCase):
+
+    def setUp(self):
+        self.pred = []
+        data_sample = TextRecogDataSample()
+        pred_text = LabelData()
+        pred_text.item = 'pred_helL'
+        data_sample.pred_text = pred_text
+        gt_text = LabelData()
+        gt_text.item = 'hello'
+        data_sample.gt_text = gt_text
+        self.pred.append(data_sample)
+        data_sample = TextRecogDataSample()
+        pred_text = LabelData()
+        pred_text.item = 'HEL'
+        data_sample.pred_text = pred_text
+        gt_text = LabelData()
+        gt_text.item = 'HELLO'
+        data_sample.gt_text = gt_text
+        self.pred.append(data_sample)
+
+    def test_one_minus_ned_metric(self):
+        metric = OneMinusNEDMetric()
+        metric.process(None, self.pred)
+        eval_res = metric.evaluate(size=2)
+        self.assertEqual(eval_res['recog/1-N.E.D'], 0.4875)
diff --git a/mmocr-dev-1.x/tests/test_init.py b/mmocr-dev-1.x/tests/test_init.py
new file mode 100644
index 0000000000000000000000000000000000000000..ad43344d8ed390f6619752e9fc14ba131bb04c16
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_init.py
@@ -0,0 +1,21 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from mmocr import digit_version
+
+
+def test_digit_version():
+    assert digit_version('0.2.16') == (0, 2, 16, 0, 0, 0)
+    assert digit_version('1.2.3') == (1, 2, 3, 0, 0, 0)
+    assert digit_version('1.2.3rc0') == (1, 2, 3, 0, -1, 0)
+    assert digit_version('1.2.3rc1') == (1, 2, 3, 0, -1, 1)
+    assert digit_version('1.0rc0') == (1, 0, 0, 0, -1, 0)
+    assert digit_version('1.0') == digit_version('1.0.0')
+    assert digit_version('1.5.0+cuda90_cudnn7.6.3_lms') == digit_version('1.5')
+    assert digit_version('1.0.0dev') < digit_version('1.0.0a')
+    assert digit_version('1.0.0a') < digit_version('1.0.0a1')
+    assert digit_version('1.0.0a') < digit_version('1.0.0b')
+    assert digit_version('1.0.0b') < digit_version('1.0.0rc')
+    assert digit_version('1.0.0rc1') < digit_version('1.0.0')
+    assert digit_version('1.0.0') < digit_version('1.0.0post')
+    assert digit_version('1.0.0post') < digit_version('1.0.0post1')
+    assert digit_version('v1') == (1, 0, 0, 0, 0, 0)
+    assert digit_version('v1.1.5') == (1, 1, 5, 0, 0, 0)
diff --git a/mmocr-dev-1.x/tests/test_models/test_common/test_backbones/test_clip_resnet.py b/mmocr-dev-1.x/tests/test_models/test_common/test_backbones/test_clip_resnet.py
new file mode 100644
index 0000000000000000000000000000000000000000..fd71395f8c1334cfdc68430ac484af12cd97c77f
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_common/test_backbones/test_clip_resnet.py
@@ -0,0 +1,66 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+import torch.nn as nn
+from mmcv.cnn import build_conv_layer, build_norm_layer
+
+from mmocr.models.common.backbones import CLIPResNet
+from mmocr.models.common.backbones.clip_resnet import CLIPBottleneck
+
+
+class TestCLIPResNet(TestCase):
+
+    def test_forward(self):
+        model = CLIPResNet()
+        model.eval()
+
+        imgs = torch.randn(1, 3, 32, 32)
+        feat = model(imgs)
+        assert len(feat) == 4
+        assert feat[0].shape == torch.Size([1, 256, 8, 8])
+        assert feat[1].shape == torch.Size([1, 512, 4, 4])
+        assert feat[2].shape == torch.Size([1, 1024, 2, 2])
+        assert feat[3].shape == torch.Size([1, 2048, 1, 1])
+
+
+class TestCLIPBottleneck(TestCase):
+
+    def test_forward(self):
+        stride = 2
+        inplanes = 256
+        planes = 128
+        conv_cfg = None
+        norm_cfg = {'type': 'BN', 'requires_grad': True}
+
+        downsample = []
+        downsample.append(
+            nn.AvgPool2d(
+                kernel_size=stride,
+                stride=stride,
+                ceil_mode=True,
+                count_include_pad=False))
+        downsample.extend([
+            build_conv_layer(
+                conv_cfg,
+                inplanes,
+                planes * CLIPBottleneck.expansion,
+                kernel_size=1,
+                stride=1,
+                bias=False),
+            build_norm_layer(norm_cfg, planes * CLIPBottleneck.expansion)[1]
+        ])
+        downsample = nn.Sequential(*downsample)
+
+        model = CLIPBottleneck(
+            inplanes=inplanes,
+            planes=planes,
+            stride=stride,
+            downsample=downsample,
+            conv_cfg=conv_cfg,
+            norm_cfg=norm_cfg)
+        model.eval()
+
+        input_feat = torch.randn(1, 256, 8, 8)
+        output_feat = model(input_feat)
+        assert output_feat.shape == torch.Size([1, 512, 4, 4])
diff --git a/mmocr-dev-1.x/tests/test_models/test_common/test_layers/test_transformer_layers.py b/mmocr-dev-1.x/tests/test_models/test_common/test_layers/test_transformer_layers.py
new file mode 100644
index 0000000000000000000000000000000000000000..a495c72b2ef7ed1c29b8f0481d7856dd7b240a32
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_common/test_layers/test_transformer_layers.py
@@ -0,0 +1,37 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.layers.transformer_layers import (TFDecoderLayer,
+                                                           TFEncoderLayer)
+
+
+class TestTFEncoderLayer(TestCase):
+
+    def test_forward(self):
+        encoder_layer = TFEncoderLayer()
+        in_enc = torch.rand(1, 20, 512)
+        out_enc = encoder_layer(in_enc)
+        self.assertEqual(out_enc.shape, torch.Size([1, 20, 512]))
+
+        encoder_layer = TFEncoderLayer(
+            operation_order=('self_attn', 'norm', 'ffn', 'norm'))
+        out_enc = encoder_layer(in_enc)
+        self.assertEqual(out_enc.shape, torch.Size([1, 20, 512]))
+
+
+class TestTFDecoderLayer(TestCase):
+
+    def test_forward(self):
+        decoder_layer = TFDecoderLayer()
+        in_dec = torch.rand(1, 30, 512)
+        out_enc = torch.rand(1, 128, 512)
+        out_dec = decoder_layer(in_dec, out_enc)
+        self.assertEqual(out_dec.shape, torch.Size([1, 30, 512]))
+
+        decoder_layer = TFDecoderLayer(
+            operation_order=('self_attn', 'norm', 'enc_dec_attn', 'norm',
+                             'ffn', 'norm'))
+        out_dec = decoder_layer(in_dec, out_enc)
+        self.assertEqual(out_dec.shape, torch.Size([1, 30, 512]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_bce_loss.py b/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_bce_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..0de420d2786ecb6fd412336b698f5ca1f9c71fe1
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_bce_loss.py
@@ -0,0 +1,235 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.losses import (MaskedBalancedBCELoss,
+                                        MaskedBalancedBCEWithLogitsLoss,
+                                        MaskedBCELoss, MaskedBCEWithLogitsLoss)
+
+
+class TestMaskedBalancedBCELoss(TestCase):
+
+    def setUp(self) -> None:
+        self.bce_loss = MaskedBalancedBCELoss(negative_ratio=2)
+        self.pred = torch.FloatTensor([0.1, 0.2, 0.3, 0.4])
+        self.gt = torch.FloatTensor([1, 0, 0, 0])
+        self.mask = torch.BoolTensor([True, False, False, True])
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCELoss(reduction='any')
+
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCELoss(negative_ratio='a')
+
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCELoss(eps='a')
+
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCELoss(fallback_negative_num='a')
+
+    def test_forward(self):
+
+        # Shape mismatch between pred and gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([0, 0, 0])
+            self.bce_loss(self.pred, invalid_gt)
+
+        # Shape mismatch between pred and mask
+        with self.assertRaises(AssertionError):
+            invalid_mask = torch.BoolTensor([True, False, False])
+            self.bce_loss(self.pred, self.gt, invalid_mask)
+
+        # Invalid pred or gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([2, 3, 4, 5])
+            self.bce_loss(self.pred, invalid_gt, self.mask)
+        with self.assertRaises(AssertionError):
+            invalid_pred = torch.FloatTensor([2, 3, 4, 5])
+            self.bce_loss(invalid_pred, self.gt, self.mask)
+
+        self.assertAlmostEqual(
+            self.bce_loss(self.pred, self.gt).item(), 1.0567, delta=0.1)
+        self.assertAlmostEqual(
+            self.bce_loss(self.pred, self.gt, self.mask).item(),
+            1.4067,
+            delta=0.1)
+
+        # Test zero mask
+        zero_mask = torch.FloatTensor([0, 0, 0, 0])
+        self.assertAlmostEqual(
+            self.bce_loss(self.pred, self.gt, zero_mask).item(), 0)
+
+        # Test 0 < fallback_negative_num < negative numbers
+        all_neg_gt = torch.zeros((4, ))
+        self.fallback_bce_loss = MaskedBalancedBCELoss(fallback_negative_num=1)
+        self.assertAlmostEqual(
+            self.fallback_bce_loss(self.pred, all_neg_gt, self.mask).item(),
+            0.51,
+            delta=0.001)
+        # Test fallback_negative_num > negative numbers
+        self.fallback_bce_loss = MaskedBalancedBCELoss(fallback_negative_num=3)
+        self.assertAlmostEqual(
+            self.fallback_bce_loss(self.pred, all_neg_gt, self.mask).item(),
+            0.308,
+            delta=0.001)
+
+
+class TestMaskedBCELoss(TestCase):
+
+    def setUp(self) -> None:
+        self.bce_loss = MaskedBCELoss()
+        self.pred = torch.FloatTensor([0.1, 0.2, 0.3, 0.4])
+        self.gt = torch.FloatTensor([1, 0, 0, 0])
+        self.mask = torch.BoolTensor([True, False, False, True])
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            MaskedBCELoss(eps='a')
+
+    def test_forward(self):
+
+        # Shape mismatch between pred and gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([0, 0, 0])
+            self.bce_loss(self.pred, invalid_gt)
+
+        # Shape mismatch between pred and mask
+        with self.assertRaises(AssertionError):
+            invalid_mask = torch.BoolTensor([True, False, False])
+            self.bce_loss(self.pred, self.gt, invalid_mask)
+
+        # Invalid pred or gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([2, 3, 4, 5])
+            self.bce_loss(self.pred, invalid_gt, self.mask)
+        with self.assertRaises(AssertionError):
+            invalid_pred = torch.FloatTensor([2, 3, 4, 5])
+            self.bce_loss(invalid_pred, self.gt, self.mask)
+
+        self.assertAlmostEqual(
+            self.bce_loss(self.pred, self.gt).item(), 0.8483, delta=0.1)
+        self.assertAlmostEqual(
+            self.bce_loss(self.pred, self.gt, self.mask).item(),
+            1.4067,
+            delta=0.1)
+
+        # Test zero mask
+        zero_mask = torch.FloatTensor([0, 0, 0, 0])
+        self.assertAlmostEqual(
+            self.bce_loss(self.pred, self.gt, zero_mask).item(), 0)
+
+
+class TestMaskedBalancedWithLogitsBCELoss(TestCase):
+
+    def setUp(self) -> None:
+        self.loss = MaskedBalancedBCEWithLogitsLoss(negative_ratio=2)
+        self.pred = torch.FloatTensor([1.5, 1.5, 1.5, 1.5])
+        self.gt = torch.FloatTensor([1, 1, 1, 0])
+        self.mask = torch.BoolTensor([True, False, False, True])
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCEWithLogitsLoss(reduction='any')
+
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCEWithLogitsLoss(negative_ratio='a')
+
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCEWithLogitsLoss(eps='a')
+
+        with self.assertRaises(AssertionError):
+            MaskedBalancedBCEWithLogitsLoss(fallback_negative_num='a')
+
+    def test_forward(self):
+
+        # Shape mismatch between pred and gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([0, 0, 0])
+            self.loss(self.pred, invalid_gt)
+
+        # Shape mismatch between pred and mask
+        with self.assertRaises(AssertionError):
+            invalid_mask = torch.BoolTensor([True, False, False])
+            self.loss(self.pred, self.gt, invalid_mask)
+
+        # Invalid gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([2, 3, 4, 5])
+            self.loss(self.pred, invalid_gt, self.mask)
+
+        logit = torch.FloatTensor([1.5])
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt).item(),
+            ((-torch.log(torch.sigmoid(logit)) * 3 -
+              torch.log(1 - torch.sigmoid(logit))) / 4).item(),
+            delta=0.0001)
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, self.mask).item(),
+            (-torch.log(torch.sigmoid(logit)) -
+             torch.log(1 - torch.sigmoid(logit))).item() / 2,
+            delta=0.0001)
+
+        # Test zero mask
+        zero_mask = torch.FloatTensor([0, 0, 0, 0])
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, zero_mask).item(), 0)
+
+        # Test 0 < fallback_negative_num < negative numbers
+        all_neg_gt = torch.zeros((4, ))
+        self.fallback_bce_loss = MaskedBalancedBCEWithLogitsLoss(
+            fallback_negative_num=1)
+        self.assertAlmostEqual(
+            self.fallback_bce_loss(self.pred, all_neg_gt, self.mask).item(),
+            -torch.log(1 - torch.sigmoid(logit)).item(),
+            delta=0.001)
+        # Test fallback_negative_num > negative numbers
+        self.fallback_bce_loss = MaskedBalancedBCEWithLogitsLoss(
+            fallback_negative_num=5)
+        self.assertAlmostEqual(
+            self.fallback_bce_loss(self.pred, all_neg_gt, self.mask).item(),
+            -torch.log(1 - torch.sigmoid(logit)).item(),
+            delta=0.001)
+
+
+class TestMaskedBCEWithLogitsLoss(TestCase):
+
+    def setUp(self) -> None:
+        self.loss = MaskedBCEWithLogitsLoss()
+        self.pred = torch.FloatTensor([1.5, 1.5, 1.5, 1.5])
+        self.gt = torch.FloatTensor([1, 1, 1, 0])
+        self.mask = torch.BoolTensor([True, False, False, True])
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            MaskedBCEWithLogitsLoss(eps='a')
+
+    def test_forward(self):
+
+        # Shape mismatch between pred and gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([0, 0, 0])
+            self.loss(self.pred, invalid_gt)
+
+        # Shape mismatch between pred and mask
+        with self.assertRaises(AssertionError):
+            invalid_mask = torch.BoolTensor([True, False, False])
+            self.loss(self.pred, self.gt, invalid_mask)
+
+        logit = torch.FloatTensor([1.5])
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt).item(),
+            ((-torch.log(torch.sigmoid(logit)) * 3 -
+              torch.log(1 - torch.sigmoid(logit))) / 4).item(),
+            delta=0.0001)
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, self.mask).item(),
+            (-torch.log(torch.sigmoid(logit)) -
+             torch.log(1 - torch.sigmoid(logit))).item() / 2,
+            delta=0.0001)
+
+        # Test zero mask
+        zero_mask = torch.FloatTensor([0, 0, 0, 0])
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, zero_mask).item(), 0)
diff --git a/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_dice_loss.py b/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_dice_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..825751ad67c66dca68a6d126735659dfc57b1e5e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_dice_loss.py
@@ -0,0 +1,80 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.losses import MaskedDiceLoss, MaskedSquareDiceLoss
+
+
+class TestMaskedDiceLoss(TestCase):
+
+    def setUp(self) -> None:
+        self.loss = MaskedDiceLoss()
+        self.pred = torch.FloatTensor([0, 1, 0, 1])
+        self.gt = torch.ones_like(self.pred)
+        self.mask = torch.FloatTensor([1, 1, 0, 1])
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            MaskedDiceLoss(eps='any')
+
+    def test_forward(self):
+
+        # Shape mismatch between pred and gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([0, 0, 0])
+            self.loss(self.pred, invalid_gt)
+
+        # Shape mismatch between pred and mask
+        with self.assertRaises(AssertionError):
+            invalid_mask = torch.BoolTensor([True, False, False])
+            self.loss(self.pred, self.gt, invalid_mask)
+
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt).item(), 1 / 3, delta=0.001)
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, self.mask).item(),
+            1 / 5,
+            delta=0.001)
+
+        # Test zero mask
+        zero_mask = torch.FloatTensor([0, 0, 0, 0])
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, zero_mask).item(), 1)
+
+
+class TestMaskedSquareDiceLoss(TestCase):
+
+    def setUp(self) -> None:
+        self.loss = MaskedSquareDiceLoss()
+        self.pred = torch.FloatTensor([0, 1, 0, 1])
+        self.gt = torch.ones_like(self.pred)
+        self.mask = torch.FloatTensor([1, 1, 0, 1])
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            MaskedSquareDiceLoss(eps='any')
+
+    def test_forward(self):
+
+        # Shape mismatch between pred and gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([0, 0, 0])
+            self.loss(self.pred, invalid_gt)
+
+        # Shape mismatch between pred and mask
+        with self.assertRaises(AssertionError):
+            invalid_mask = torch.BoolTensor([True, False, False])
+            self.loss(self.pred, self.gt, invalid_mask)
+
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt).item(), 1 / 2, delta=0.001)
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, self.mask).item(),
+            1 / 2,
+            delta=0.001)
+
+        # Test zero mask
+        zero_mask = torch.FloatTensor([0, 0, 0, 0])
+        self.assertAlmostEqual(
+            self.loss(self.pred, self.gt, zero_mask).item(), 1)
diff --git a/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_l1_loss.py b/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_l1_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..999b22ebc4585023881fa6748ce094e207f45842
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_common/test_losses/test_l1_loss.py
@@ -0,0 +1,47 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.losses import MaskedSmoothL1Loss
+
+
+class TestMaskedSmoothL1Loss(TestCase):
+
+    def setUp(self) -> None:
+        self.l1_loss = MaskedSmoothL1Loss(beta=0)
+        self.smooth_l1_loss = MaskedSmoothL1Loss(beta=1)
+        self.pred = torch.FloatTensor([0.5, 1, 1.5, 2])
+        self.gt = torch.ones_like(self.pred)
+        self.mask = torch.FloatTensor([1, 0, 0, 1])
+
+    def test_forward(self):
+
+        # Shape mismatch between pred and gt
+        with self.assertRaises(AssertionError):
+            invalid_gt = torch.FloatTensor([0, 0, 0])
+            self.l1_loss(self.pred, invalid_gt)
+
+        # Shape mismatch between pred and mask
+        with self.assertRaises(AssertionError):
+            invalid_mask = torch.BoolTensor([True, False, False])
+            self.l1_loss(self.pred, self.gt, invalid_mask)
+
+        # Test L1 loss results
+        self.assertAlmostEqual(
+            self.l1_loss(self.pred, self.gt).item(), 0.5, delta=0.01)
+        self.assertAlmostEqual(
+            self.l1_loss(self.pred, self.gt, self.mask).item(),
+            0.75,
+            delta=0.01)
+
+        # Test Smooth L1 loss results
+        self.assertAlmostEqual(
+            self.smooth_l1_loss(self.pred, self.gt, self.mask).item(),
+            0.3125,
+            delta=0.01)
+
+        # Test zero mask
+        zero_mask = torch.FloatTensor([0, 0, 0, 0])
+        self.assertAlmostEqual(
+            self.smooth_l1_loss(self.pred, self.gt, zero_mask).item(), 0)
diff --git a/mmocr-dev-1.x/tests/test_models/test_common/test_modules/test_transformer_module.py b/mmocr-dev-1.x/tests/test_models/test_common/test_modules/test_transformer_module.py
new file mode 100644
index 0000000000000000000000000000000000000000..84f9140efdc9e5793c0edda74e140269c8720e7a
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_common/test_modules/test_transformer_module.py
@@ -0,0 +1,15 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.modules import PositionalEncoding
+
+
+class TestPositionalEncoding(TestCase):
+
+    def test_forward(self):
+        pos_encoder = PositionalEncoding()
+        x = torch.rand(1, 30, 512)
+        out = pos_encoder(x)
+        assert out.size() == x.size()
diff --git a/mmocr-dev-1.x/tests/test_models/test_common/test_plugins/test_avgpool.py b/mmocr-dev-1.x/tests/test_models/test_common/test_plugins/test_avgpool.py
new file mode 100644
index 0000000000000000000000000000000000000000..766ddf5d6194c68cd8cac887c69d083dcaf2ce63
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_common/test_plugins/test_avgpool.py
@@ -0,0 +1,16 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.plugins import AvgPool2d
+
+
+class TestAvgPool2d(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 3, 32, 100)
+
+    def test_avgpool2d(self):
+        avgpool2d = AvgPool2d(kernel_size=2, stride=2)
+        self.assertEqual(avgpool2d(self.img).shape, torch.Size([1, 3, 16, 50]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_kie/test_extractors/test_sdmgr.py b/mmocr-dev-1.x/tests/test_models/test_kie/test_extractors/test_sdmgr.py
new file mode 100644
index 0000000000000000000000000000000000000000..2efffd4f078236e46f4a4a895057461409b60008
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_kie/test_extractors/test_sdmgr.py
@@ -0,0 +1,117 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+from os.path import dirname, exists, join
+
+import torch
+from mmengine.config import Config, ConfigDict
+from mmengine.structures import InstanceData
+
+from mmocr.registry import MODELS
+from mmocr.structures import KIEDataSample
+
+
+class TestSDMGR(unittest.TestCase):
+
+    def _get_config_directory(self):
+        """Find the predefined detector config directory."""
+        try:
+            # Assume we are running in the source mmocr repo
+            repo_dpath = dirname(dirname(dirname(dirname(dirname(__file__)))))
+        except NameError:
+            # For IPython development when this __file__ is not defined
+            import mmocr
+            repo_dpath = dirname(
+                dirname(dirname(dirname(dirname(mmocr.__file__)))))
+        config_dpath = join(repo_dpath, 'configs')
+        if not exists(config_dpath):
+            raise Exception('Cannot find config path')
+        return config_dpath
+
+    def _get_config_module(self, fname: str) -> 'ConfigDict':
+        """Load a configuration as a python module."""
+        config_dpath = self._get_config_directory()
+        config_fpath = join(config_dpath, fname)
+        config_mod = Config.fromfile(config_fpath)
+        return config_mod
+
+    def _get_cfg(self, fname: str) -> 'ConfigDict':
+        """Grab configs necessary to create a detector.
+
+        These are deep copied to allow for safe modification of parameters
+        without influencing other tests.
+        """
+        config = self._get_config_module(fname)
+        model = copy.deepcopy(config.model)
+        model.dictionary.dict_file = 'dicts/lower_english_digits.txt'
+        return model
+
+    def forward_wrapper(self, model, data, mode):
+        out = model.data_preprocessor(data, False)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        return model.forward(inputs, data_samples, mode)
+
+    def setUp(self):
+
+        cfg_path = 'kie/sdmgr/sdmgr_unet16_60e_wildreceipt.py'
+        self.visual_model_cfg = self._get_cfg(cfg_path)
+        self.visual_model = MODELS.build(self.visual_model_cfg)
+
+        cfg_path = 'kie/sdmgr/sdmgr_novisual_60e_wildreceipt.py'
+        self.novisual_model_cfg = self._get_cfg(cfg_path)
+        self.novisual_model = MODELS.build(self.novisual_model_cfg)
+
+        data_sample = KIEDataSample()
+        data_sample.gt_instances = InstanceData(
+            bboxes=torch.FloatTensor([[0, 0, 1, 1], [1, 1, 2, 2]]),
+            labels=torch.LongTensor([0, 1]),
+            edge_labels=torch.LongTensor([[0, 1], [1, 0]]),
+            texts=['text1', 'text2'],
+            relations=torch.rand((2, 2, 5)))
+        self.visual_data = dict(
+            inputs=[torch.rand((3, 10, 10))], data_samples=[data_sample])
+        self.novisual_data = dict(
+            inputs=[torch.Tensor([]).reshape((0, 0, 0))],
+            data_samples=[data_sample])
+
+    def test_forward_loss(self):
+        result = self.forward_wrapper(
+            self.visual_model, self.visual_data, mode='loss')
+        self.assertIsInstance(result, dict)
+
+        result = self.forward_wrapper(
+            self.novisual_model, self.visual_data, mode='loss')
+        self.assertIsInstance(result, dict)
+
+    def test_forward_predict(self):
+        result = self.forward_wrapper(
+            self.visual_model, self.visual_data, mode='predict')[0]
+        self.assertIsInstance(result, KIEDataSample)
+        self.assertEqual(result.pred_instances.labels.shape, torch.Size([2]))
+        self.assertEqual(result.pred_instances.edge_labels.shape,
+                         torch.Size([2, 2]))
+
+        result = self.forward_wrapper(
+            self.novisual_model, self.novisual_data, mode='predict')[0]
+        self.assertIsInstance(result, KIEDataSample)
+        self.assertEqual(result.pred_instances.labels.shape, torch.Size([2]))
+        self.assertEqual(result.pred_instances.edge_labels.shape,
+                         torch.Size([2, 2]))
+
+    def test_forward_tensor(self):
+        result = self.forward_wrapper(
+            self.visual_model, self.visual_data, mode='tensor')
+        self.assertIsInstance(result, tuple)
+        self.assertIsInstance(result[0], torch.Tensor)
+        self.assertIsInstance(result[1], torch.Tensor)
+
+        result = self.forward_wrapper(
+            self.novisual_model, self.novisual_data, mode='tensor')
+        self.assertIsInstance(result, tuple)
+        self.assertIsInstance(result[0], torch.Tensor)
+        self.assertIsInstance(result[1], torch.Tensor)
+
+    def test_forward_invalid(self):
+        with self.assertRaises(RuntimeError):
+            self.forward_wrapper(
+                self.visual_model, self.visual_data, mode='invalid')
diff --git a/mmocr-dev-1.x/tests/test_models/test_kie/test_heads/test_sdmgr_head.py b/mmocr-dev-1.x/tests/test_models/test_kie/test_heads/test_sdmgr_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..8d38c692ca773250692bcd89106c3f377a58690e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_kie/test_heads/test_sdmgr_head.py
@@ -0,0 +1,47 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.kie.heads import SDMGRHead
+from mmocr.structures import KIEDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestSDMGRHead(TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            SDMGRHead(dictionary='str')
+
+    def test_forward(self):
+
+        data_sample = KIEDataSample()
+        data_sample.gt_instances = InstanceData(
+            bboxes=torch.rand((2, 4)), texts=['t1', 't2'])
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            dict_cfg = dict(
+                type='Dictionary',
+                dict_file=dict_file,
+                with_unknown=True,
+                with_padding=True,
+                unknown_token=None)
+
+            # Test img + dict_cfg
+            head = SDMGRHead(dictionary=dict_cfg)
+            node_cls, edge_cls = head(torch.rand((2, 64)), [data_sample])
+            self.assertEqual(node_cls.shape, torch.Size([2, 26]))
+            self.assertEqual(edge_cls.shape, torch.Size([4, 2]))
+
+            # When input image is None
+            del (dict_cfg['type'])
+            head = SDMGRHead(dictionary=Dictionary(**dict_cfg))
+            node_cls, edge_cls = head(None, [data_sample])
+            self.assertEqual(node_cls.shape, torch.Size([2, 26]))
+            self.assertEqual(edge_cls.shape, torch.Size([4, 2]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_kie/test_module_losses/test_sdmgr_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_kie/test_module_losses/test_sdmgr_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..7b4086a15ee2a98d9099f3d2550f3bdc77de936f
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_kie/test_module_losses/test_sdmgr_module_loss.py
@@ -0,0 +1,32 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.kie.module_losses import SDMGRModuleLoss
+from mmocr.structures import KIEDataSample
+
+
+class TestSDMGRModuleLoss(TestCase):
+
+    def test_forward(self):
+        loss = SDMGRModuleLoss()
+
+        node_preds = torch.rand((3, 26))
+        edge_preds = torch.rand((9, 2))
+        data_sample = KIEDataSample()
+        data_sample.gt_instances = InstanceData(
+            labels=torch.randint(0, 26, (3, )).long(),
+            edge_labels=torch.randint(0, 2, (3, 3)).long())
+
+        losses = loss((node_preds, edge_preds), [data_sample])
+        self.assertIn('loss_node', losses)
+        self.assertIn('loss_edge', losses)
+        self.assertIn('acc_node', losses)
+        self.assertIn('acc_edge', losses)
+
+        loss = SDMGRModuleLoss(weight_edge=2, weight_node=3)
+        new_losses = loss((node_preds, edge_preds), [data_sample])
+        self.assertEqual(losses['loss_node'] * 3, new_losses['loss_node'])
+        self.assertEqual(losses['loss_edge'] * 2, new_losses['loss_edge'])
diff --git a/mmocr-dev-1.x/tests/test_models/test_kie/test_postprocessors/test_sdmgr_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_kie/test_postprocessors/test_sdmgr_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..c62c878ca5c2249d6d7bac50eadf2b041d297a32
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_kie/test_postprocessors/test_sdmgr_postprocessor.py
@@ -0,0 +1,124 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+from unittest import TestCase
+
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.kie.postprocessors import SDMGRPostProcessor
+from mmocr.structures import KIEDataSample
+
+
+class TestSDMGRPostProcessor(TestCase):
+
+    def setUp(self):
+        node_preds = self.rand_prob_dist(6, 3)
+        edge_preds = self.rand_prob_dist(20, 2)
+        self.preds = (node_preds, edge_preds)
+
+        data_sample1 = KIEDataSample()
+        data_sample1.gt_instances = InstanceData(
+            bboxes=torch.randint(0, 26, (2, 4)).long())
+        data_sample2 = KIEDataSample()
+        data_sample2.gt_instances = InstanceData(
+            bboxes=torch.randint(0, 26, (4, 4)).long())
+        self.data_samples = [data_sample1, data_sample2]
+
+    def rand_prob_dist(self, batch_num: int, n_classes: int) -> torch.Tensor:
+        assert n_classes > 1
+        result = torch.zeros((batch_num, n_classes))
+        result[:, 0] = torch.rand((batch_num, ))
+        diff = 1 - result[:, 0]
+        for i in range(1, n_classes - 1):
+            result[:, i] = diff * torch.rand((batch_num, ))
+            diff -= result[:, i]
+        result[:, -1] = diff
+        return result
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            SDMGRPostProcessor(link_type=1)
+
+        with self.assertRaises(AssertionError):
+            SDMGRPostProcessor(link_type='one-to-one')
+
+    def test_forward(self):
+        postprocessor = SDMGRPostProcessor()
+        data_samples = postprocessor(self.preds,
+                                     copy.deepcopy(self.data_samples))
+        self.assertEqual(data_samples[0].pred_instances.labels.shape, (2, ))
+        self.assertEqual(data_samples[0].pred_instances.scores.shape, (2, ))
+        self.assertEqual(data_samples[0].pred_instances.edge_labels.shape,
+                         (2, 2))
+        self.assertEqual(data_samples[0].pred_instances.edge_scores.shape,
+                         (2, 2))
+        self.assertEqual(data_samples[1].pred_instances.labels.shape, (4, ))
+        self.assertEqual(data_samples[1].pred_instances.scores.shape, (4, ))
+        self.assertEqual(data_samples[1].pred_instances.edge_labels.shape,
+                         (4, 4))
+        self.assertEqual(data_samples[1].pred_instances.edge_scores.shape,
+                         (4, 4))
+
+    def test_one_to_one(self):
+        postprocessor = SDMGRPostProcessor(
+            link_type='one-to-one', key_node_idx=1, value_node_idx=2)
+        data_samples = postprocessor(self.preds,
+                                     copy.deepcopy(self.data_samples))
+        for data_sample in data_samples:
+            tails, heads = torch.where(
+                data_sample.pred_instances.edge_labels == 1)
+            if len(tails) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[tails] == 1).all())
+                self.assertEqual(len(set(tails.numpy().tolist())), len(tails))
+            if len(heads) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[heads] == 2).all())
+                self.assertEqual(len(set(heads.numpy().tolist())), len(heads))
+
+    def test_one_to_many(self):
+        postprocessor = SDMGRPostProcessor(
+            link_type='one-to-many', key_node_idx=1, value_node_idx=2)
+        data_samples = postprocessor(self.preds,
+                                     copy.deepcopy(self.data_samples))
+        for data_sample in data_samples:
+            tails, heads = torch.where(
+                data_sample.pred_instances.edge_labels == 1)
+            if len(tails) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[tails] == 1).all())
+            if len(heads) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[heads] == 2).all())
+                self.assertEqual(len(set(heads.numpy().tolist())), len(heads))
+
+    def test_many_to_many(self):
+        postprocessor = SDMGRPostProcessor(
+            link_type='many-to-many', key_node_idx=1, value_node_idx=2)
+        data_samples = postprocessor(self.preds,
+                                     copy.deepcopy(self.data_samples))
+        for data_sample in data_samples:
+            tails, heads = torch.where(
+                data_sample.pred_instances.edge_labels == 1)
+            if len(tails) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[tails] == 1).all())
+            if len(heads) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[heads] == 2).all())
+
+    def test_many_to_one(self):
+        postprocessor = SDMGRPostProcessor(
+            link_type='many-to-one', key_node_idx=1, value_node_idx=2)
+        data_samples = postprocessor(self.preds,
+                                     copy.deepcopy(self.data_samples))
+        for data_sample in data_samples:
+            tails, heads = torch.where(
+                data_sample.pred_instances.edge_labels == 1)
+            if len(tails) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[tails] == 1).all())
+                self.assertEqual(len(set(tails.numpy().tolist())), len(tails))
+            if len(heads) > 0:
+                self.assertTrue(
+                    (data_sample.pred_instances.labels[heads] == 2).all())
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_data_preprocessors/test_textdet_data_preprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_data_preprocessors/test_textdet_data_preprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..8f0642ceccfd68fb324e1ce1d83e18e3a4c6a071
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_data_preprocessors/test_textdet_data_preprocessor.py
@@ -0,0 +1,111 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textdet.data_preprocessors import TextDetDataPreprocessor
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+
+
+@MODELS.register_module()
+class TDAugment(torch.nn.Module):
+
+    def forward(self, inputs, data_samples):
+        return inputs, data_samples
+
+
+class TestTextDetDataPreprocessor(TestCase):
+
+    def test_init(self):
+        # test mean is None
+        processor = TextDetDataPreprocessor()
+        self.assertTrue(not hasattr(processor, 'mean'))
+        self.assertTrue(processor._enable_normalize is False)
+
+        # test mean is not None
+        processor = TextDetDataPreprocessor(mean=[0, 0, 0], std=[1, 1, 1])
+        self.assertTrue(hasattr(processor, 'mean'))
+        self.assertTrue(hasattr(processor, 'std'))
+        self.assertTrue(processor._enable_normalize)
+
+        # please specify both mean and std
+        with self.assertRaises(AssertionError):
+            TextDetDataPreprocessor(mean=[0, 0, 0])
+
+        # bgr2rgb and rgb2bgr cannot be set to True at the same time
+        with self.assertRaises(AssertionError):
+            TextDetDataPreprocessor(bgr_to_rgb=True, rgb_to_bgr=True)
+
+        aug_cfg = [dict(type='TDAugment')]
+        processor = TextDetDataPreprocessor()
+        self.assertIsNone(processor.batch_augments)
+        processor = TextDetDataPreprocessor(batch_augments=aug_cfg)
+        self.assertIsInstance(processor.batch_augments, torch.nn.ModuleList)
+        self.assertIsInstance(processor.batch_augments[0], TDAugment)
+
+    def test_forward(self):
+        processor = TextDetDataPreprocessor(mean=[0, 0, 0], std=[1, 1, 1])
+
+        data = {
+            'inputs': [
+                torch.randint(0, 256, (3, 11, 10)),
+            ],
+            'data_samples': [
+                TextDetDataSample(
+                    metainfo=dict(img_shape=(11, 10), valid_ratio=1.0)),
+            ]
+        }
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        self.assertEqual(inputs.shape, (1, 3, 11, 10))
+        self.assertEqual(len(data_samples), 1)
+
+        # test channel_conversion
+        processor = TextDetDataPreprocessor(
+            mean=[0., 0., 0.], std=[1., 1., 1.], bgr_to_rgb=True)
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        self.assertEqual(inputs.shape, (1, 3, 11, 10))
+        self.assertEqual(len(data_samples), 1)
+
+        # test padding
+        data = {
+            'inputs': [
+                torch.randint(0, 256, (3, 10, 11)),
+                torch.randint(0, 256, (3, 9, 14))
+            ]
+        }
+        processor = TextDetDataPreprocessor(
+            mean=[0., 0., 0.], std=[1., 1., 1.], bgr_to_rgb=True)
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        self.assertEqual(inputs.shape, (2, 3, 10, 14))
+        self.assertIsNone(data_samples)
+
+        # test pad_size_divisor
+        data = {
+            'inputs': [
+                torch.randint(0, 256, (3, 10, 11)),
+                torch.randint(0, 256, (3, 9, 24))
+            ],
+            'data_samples': [
+                TextDetDataSample(
+                    metainfo=dict(img_shape=(10, 11), valid_ratio=1.0)),
+                TextDetDataSample(
+                    metainfo=dict(img_shape=(9, 24), valid_ratio=1.0))
+            ]
+        }
+        aug_cfg = [dict(type='TDAugment')]
+        processor = TextDetDataPreprocessor(
+            mean=[0., 0., 0.],
+            std=[1., 1., 1.],
+            pad_size_divisor=5,
+            batch_augments=aug_cfg)
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        self.assertEqual(inputs.shape, (2, 3, 10, 25))
+        self.assertEqual(len(data_samples), 2)
+        for data_sample, expected_shape in zip(data_samples, [(10, 25),
+                                                              (10, 25)]):
+            self.assertEqual(data_sample.batch_input_shape, expected_shape)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_detectors/test_drrg.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_detectors/test_drrg.py
new file mode 100644
index 0000000000000000000000000000000000000000..27db51bb4ca5409d2d5cf4b3a3b4c1e82469adcc
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_detectors/test_drrg.py
@@ -0,0 +1,126 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+from os.path import dirname, exists, join
+from unittest import mock
+
+import numpy as np
+import torch
+from mmengine.config import Config, ConfigDict
+from mmengine.registry import init_default_scope
+
+from mmocr.registry import MODELS
+from mmocr.testing.data import create_dummy_textdet_inputs
+
+
+class TestDRRG(unittest.TestCase):
+
+    def setUp(self):
+        cfg_path = 'textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py'
+        self.model_cfg = self._get_detector_cfg(cfg_path)
+        cfg = self._get_config_module(cfg_path)
+        init_default_scope(cfg.get('default_scope', 'mmocr'))
+        self.model = MODELS.build(self.model_cfg)
+        self.inputs = create_dummy_textdet_inputs(input_shape=(1, 3, 224, 224))
+
+    def _get_comp_attribs(self):
+        num_rois = 32
+        x = np.random.randint(4, 224, (num_rois, 1))
+        y = np.random.randint(4, 224, (num_rois, 1))
+        h = 4 * np.ones((num_rois, 1))
+        w = 4 * np.ones((num_rois, 1))
+        angle = (np.random.random_sample((num_rois, 1)) * 2 - 1) * np.pi / 2
+        cos, sin = np.cos(angle), np.sin(angle)
+        comp_labels = np.random.randint(1, 3, (num_rois, 1))
+        num_rois = num_rois * np.ones((num_rois, 1))
+        comp_attribs = np.hstack([num_rois, x, y, h, w, cos, sin, comp_labels])
+        gt_comp_attribs = np.expand_dims(
+            comp_attribs.astype(np.float32), axis=0)
+        return gt_comp_attribs
+
+    def _get_drrg_inputs(self):
+        imgs = self.inputs['imgs']
+        data_samples = self.inputs['data_samples']
+        gt_text_mask = self.inputs['gt_text_mask']
+        gt_center_region_mask = self.inputs['gt_center_region_mask']
+        gt_mask = self.inputs['gt_mask']
+        gt_top_height_map = self.inputs['gt_radius_map']
+        gt_bot_height_map = gt_top_height_map.copy()
+        gt_sin_map = self.inputs['gt_sin_map']
+        gt_cos_map = self.inputs['gt_cos_map']
+        gt_comp_attribs = self._get_comp_attribs()
+        return imgs, data_samples, (gt_text_mask, gt_center_region_mask,
+                                    gt_mask, gt_top_height_map,
+                                    gt_bot_height_map, gt_sin_map, gt_cos_map,
+                                    gt_comp_attribs)
+
+    @mock.patch(
+        'mmocr.models.textdet.module_losses.drrg_module_loss.DRRGModuleLoss.'
+        'get_targets')
+    def test_loss(self, mock_get_targets):
+        imgs, data_samples, targets = self._get_drrg_inputs()
+        mock_get_targets.return_value = targets
+        losses = self.model(imgs, data_samples, mode='loss')
+        self.assertIsInstance(losses, dict)
+
+    @mock.patch('mmocr.models.textdet.detectors.drrg.DRRG.extract_feat')
+    def test_predict(self, mock_extract_feat):
+        model_cfg = self.model_cfg.copy()
+        model_cfg['det_head']['in_channels'] = 6
+        model_cfg['det_head']['text_region_thr'] = 0.8
+        model_cfg['det_head']['center_region_thr'] = 0.8
+        model = MODELS.build(model_cfg)
+        imgs, data_samples, _ = self._get_drrg_inputs()
+
+        maps = torch.zeros((1, 6, 224, 224), dtype=torch.float)
+        maps[:, 0:2, :, :] = -10.
+        maps[:, 0, 60:100, 50:170] = 10.
+        maps[:, 1, 75:85, 60:160] = 10.
+        maps[:, 2, 75:85, 60:160] = 0.
+        maps[:, 3, 75:85, 60:160] = 1.
+        maps[:, 4, 75:85, 60:160] = 10.
+        maps[:, 5, 75:85, 60:160] = 10.
+        mock_extract_feat.return_value = maps
+        with torch.no_grad():
+            full_pass_weight = torch.zeros((6, 6, 1, 1))
+            for i in range(6):
+                full_pass_weight[i, i, 0, 0] = 1
+            model.det_head.out_conv.weight.data = full_pass_weight
+            model.det_head.out_conv.bias.data.fill_(0.)
+            results = model(imgs, data_samples, mode='predict')
+        self.assertIn('polygons', results[0].pred_instances)
+        self.assertIn('scores', results[0].pred_instances)
+        self.assertTrue(
+            isinstance(results[0].pred_instances['scores'], torch.FloatTensor))
+
+    def _get_config_directory(self):
+        """Find the predefined detector config directory."""
+        try:
+            # Assume we are running in the source mmocr repo
+            repo_dpath = dirname(dirname(dirname(dirname(dirname(__file__)))))
+        except NameError:
+            # For IPython development when this __file__ is not defined
+            import mmocr
+            repo_dpath = dirname(
+                dirname(dirname(dirname(dirname(mmocr.__file__)))))
+        config_dpath = join(repo_dpath, 'configs')
+        if not exists(config_dpath):
+            raise Exception('Cannot find config path')
+        return config_dpath
+
+    def _get_config_module(self, fname: str) -> 'ConfigDict':
+        """Load a configuration as a python module."""
+        config_dpath = self._get_config_directory()
+        config_fpath = join(config_dpath, fname)
+        config_mod = Config.fromfile(config_fpath)
+        return config_mod
+
+    def _get_detector_cfg(self, fname: str) -> 'ConfigDict':
+        """Grab necessary configs necessary to create a detector.
+
+        These are deep copied to allow for safe modification of parameters
+        without influencing other tests.
+        """
+        config = self._get_config_module(fname)
+        model = copy.deepcopy(config.model)
+        return model
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_base_head.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_base_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..4693ccab47c9fcac66289aed81d18001e51fb5cb
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_base_head.py
@@ -0,0 +1,62 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase, mock
+
+from mmocr.models.textdet import BaseTextDetHead
+from mmocr.registry import MODELS
+
+
+@MODELS.register_module()
+class FakeModule:
+
+    def __init__(self) -> None:
+        pass
+
+    def get_targets(self, datasamples):
+        return None
+
+    def __call__(self, *args):
+        return None
+
+
+class TestBaseTextDetHead(TestCase):
+
+    def test_init(self):
+        cfg = dict(type='FakeModule')
+
+        with self.assertRaises(AssertionError):
+            BaseTextDetHead([], cfg)
+        with self.assertRaises(AssertionError):
+            BaseTextDetHead(cfg, [])
+
+        decoder = BaseTextDetHead(None, None)
+        self.assertIsNone(decoder.module_loss)
+        self.assertIsNone(decoder.postprocessor)
+        decoder = BaseTextDetHead(cfg, cfg)
+        self.assertIsInstance(decoder.module_loss, FakeModule)
+        self.assertIsInstance(decoder.postprocessor, FakeModule)
+
+    @mock.patch(f'{__name__}.BaseTextDetHead.forward')
+    def test_forward(self, mock_forward):
+
+        def mock_forward(feat, out_enc, datasamples):
+
+            return True
+
+        mock_forward.side_effect = mock_forward
+        cfg = dict(type='FakeModule')
+        decoder = BaseTextDetHead(cfg, cfg)
+        # test loss
+        loss = decoder.loss(None, None)
+        self.assertIsNone(loss)
+
+        # test predict
+        predict = decoder.predict(None, None)
+        self.assertIsNone(predict)
+
+        # test forward
+        tensor = decoder(None, None)
+        self.assertTrue(tensor)
+
+        loss, predict = decoder.loss_and_predict(None, None)
+        self.assertIsNone(loss)
+        self.assertIsNone(predict)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_db_head.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_db_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..6f39927f906528cfc8b75a66a845c5989102056f
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_db_head.py
@@ -0,0 +1,45 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textdet.heads import DBHead
+from mmocr.registry import MODELS
+
+
+class TestDBHead(TestCase):
+
+    # Use to replace module loss and postprocessors
+    @MODELS.register_module(name='DBDummy')
+    class DummyModule:
+
+        def __call__(self, x, data_samples):
+            return x
+
+    def setUp(self) -> None:
+        self.db_head = DBHead(
+            in_channels=10,
+            module_loss=dict(type='DBDummy'),
+            postprocessor=dict(type='DBDummy'))
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            DBHead(in_channels='test', with_bias=False)
+
+        with self.assertRaises(AssertionError):
+            DBHead(in_channels=1, with_bias='Text')
+
+    def test_forward(self):
+        data = torch.randn((2, 10, 40, 50))
+
+        results = self.db_head(data, None, 'loss')
+        for i in range(3):
+            self.assertEqual(results[i].shape, (2, 160, 200))
+
+        results = self.db_head(data, None, 'predict')
+        self.assertEqual(results.shape, (2, 160, 200))
+
+        results = self.db_head(data, None, 'both')
+        for i in range(4):
+            self.assertEqual(results[i].shape, (2, 160, 200))
+        self.assertTrue(torch.allclose(results[3], results[0].sigmoid()))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_drrg_head.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_drrg_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..9ec3681b96e86cfb00d8efa5866ebf9df15edb27
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_drrg_head.py
@@ -0,0 +1,192 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase, mock
+
+import numpy as np
+import torch
+
+from mmocr.models.textdet.heads.drrg_head import (GCN, DRRGHead, LocalGraphs,
+                                                  ProposalLocalGraphs,
+                                                  feature_embedding,
+                                                  normalize_adjacent_matrix)
+
+
+class TestDRRGHead(TestCase):
+
+    def setUp(self) -> None:
+        self.drrg_head = DRRGHead(in_channels=10)
+
+    @mock.patch(
+        'mmocr.models.textdet.module_losses.drrg_module_loss.DRRGModuleLoss.'
+        'get_targets')
+    @mock.patch(
+        'mmocr.models.textdet.module_losses.drrg_module_loss.DRRGModuleLoss.'
+        'forward')
+    def test_loss(self, mock_forward, mock_get_targets):
+        num_rois = 16
+        feature_maps = torch.randn((2, 10, 128, 128), dtype=torch.float)
+        x = np.random.randint(4, 124, (num_rois, 1))
+        y = np.random.randint(4, 124, (num_rois, 1))
+        h = 4 * np.ones((num_rois, 1))
+        w = 4 * np.ones((num_rois, 1))
+        angle = (np.random.random_sample((num_rois, 1)) * 2 - 1) * np.pi / 2
+        cos, sin = np.cos(angle), np.sin(angle)
+        comp_labels = np.random.randint(1, 3, (num_rois, 1))
+        num_rois = num_rois * np.ones((num_rois, 1))
+        comp_attribs = np.hstack([num_rois, x, y, h, w, cos, sin, comp_labels])
+        comp_attribs = comp_attribs.astype(np.float32)
+        comp_attribs_ = comp_attribs.copy()
+        comp_attribs = np.stack([comp_attribs, comp_attribs_])
+        mock_get_targets.return_value = (None, None, None, None, None, None,
+                                         None, comp_attribs)
+        mock_forward.side_effect = lambda *args: args[0]
+        # It returns the tensor input to module loss
+        pred_maps, pred_labels, gt_labels = self.drrg_head.loss(
+            feature_maps, None)
+        self.assertEqual(pred_maps.size(), (2, 6, 128, 128))
+        self.assertTrue(pred_labels.ndim == gt_labels.ndim == 2)
+        self.assertEqual(gt_labels.size()[0] * gt_labels.size()[1],
+                         pred_labels.size()[0])
+        self.assertEqual(pred_labels.size()[1], 2)
+
+    def test_predict(self):
+        with torch.no_grad():
+            feat_maps = torch.zeros((1, 10, 128, 128))
+            self.drrg_head.out_conv.bias.data.fill_(-10)
+            preds = self.drrg_head(feat_maps)
+            self.assertTrue(all([pred is None for pred in preds]))
+
+
+class TestLocalGraphs(TestCase):
+
+    def test_call(self):
+        geo_feat_len = 24
+        pooling_h, pooling_w = pooling_out_size = (2, 2)
+        num_rois = 32
+
+        local_graph_generator = LocalGraphs((4, 4), 3, geo_feat_len, 1.0,
+                                            pooling_out_size, 0.5)
+
+        feature_maps = torch.randn((2, 3, 128, 128), dtype=torch.float)
+        x = np.random.randint(4, 124, (num_rois, 1))
+        y = np.random.randint(4, 124, (num_rois, 1))
+        h = 4 * np.ones((num_rois, 1))
+        w = 4 * np.ones((num_rois, 1))
+        angle = (np.random.random_sample((num_rois, 1)) * 2 - 1) * np.pi / 2
+        cos, sin = np.cos(angle), np.sin(angle)
+        comp_labels = np.random.randint(1, 3, (num_rois, 1))
+        num_rois = num_rois * np.ones((num_rois, 1))
+        comp_attribs = np.hstack([num_rois, x, y, h, w, cos, sin, comp_labels])
+        comp_attribs = comp_attribs.astype(np.float32)
+        comp_attribs_ = comp_attribs.copy()
+        comp_attribs = np.stack([comp_attribs, comp_attribs_])
+
+        (node_feats, adjacent_matrix, knn_inds,
+         linkage_labels) = local_graph_generator(feature_maps, comp_attribs)
+        feat_len = geo_feat_len + \
+            feature_maps.size()[1] * pooling_h * pooling_w
+
+        self.assertTrue(node_feats.dim() == adjacent_matrix.dim() == 3)
+        self.assertEqual(node_feats.size()[-1], feat_len)
+        self.assertEqual(knn_inds.size()[-1], 4)
+        self.assertEqual(linkage_labels.size()[-1], 4)
+        self.assertTrue(node_feats.size()[0] == adjacent_matrix.size()[0] ==
+                        knn_inds.size()[0] == linkage_labels.size()[0])
+        self.assertTrue(node_feats.size()[1] == adjacent_matrix.size()[1] ==
+                        adjacent_matrix.size()[2])
+
+
+class TestProposalLocalGraphs(TestCase):
+
+    def test_call(self):
+        geo_feat_len = 24
+        pooling_h, pooling_w = pooling_out_size = (2, 2)
+
+        local_graph_generator = ProposalLocalGraphs(
+            (4, 4), 2, geo_feat_len, 1., pooling_out_size, 0.1, 3., 6., 1.,
+            0.5, 0.3, 0.5, 0.5, 2)
+
+        maps = torch.zeros((1, 6, 224, 224), dtype=torch.float)
+        maps[:, 0:2, :, :] = -10.
+        maps[:, 0, 60:100, 50:170] = 10.
+        maps[:, 1, 75:85, 60:160] = 10.
+        maps[:, 2, 75:85, 60:160] = 0.
+        maps[:, 3, 75:85, 60:160] = 1.
+        maps[:, 4, 75:85, 60:160] = 10.
+        maps[:, 5, 75:85, 60:160] = 10.
+        feature_maps = torch.randn((2, 6, 224, 224), dtype=torch.float)
+        feat_len = geo_feat_len + \
+            feature_maps.size()[1] * pooling_h * pooling_w
+
+        none_flag, graph_data = local_graph_generator(maps, feature_maps)
+        (node_feats, adjacent_matrices, knn_inds, local_graphs,
+         text_comps) = graph_data
+
+        self.assertFalse(none_flag, False)
+        self.assertEqual(text_comps.ndim, 2)
+        self.assertGreater(text_comps.shape[0], 0)
+        self.assertEqual(text_comps.shape[1], 9)
+        self.assertTrue(
+            node_feats.size()[0] == adjacent_matrices.size()[0] == knn_inds.
+            size()[0] == local_graphs.size()[0] == text_comps.shape[0])
+        self.assertTrue(node_feats.size()[1] == adjacent_matrices.size()[1] ==
+                        adjacent_matrices.size()[2] == local_graphs.size()[1])
+        self.assertEqual(node_feats.size()[-1], feat_len)
+
+        # test proposal local graphs with area of center region less than
+        # threshold
+        maps[:, 1, 75:85, 60:160] = -10.
+        maps[:, 1, 80, 80] = 10.
+        none_flag, _ = local_graph_generator(maps, feature_maps)
+        self.assertTrue(none_flag)
+
+        # test proposal local graphs with one text component
+        local_graph_generator = ProposalLocalGraphs(
+            (4, 4), 2, geo_feat_len, 1., pooling_out_size, 0.1, 8., 20., 1.,
+            0.5, 0.3, 0.5, 0.5, 2)
+        maps[:, 1, 78:82, 78:82] = 10.
+        none_flag, _ = local_graph_generator(maps, feature_maps)
+        self.assertTrue(none_flag)
+
+        # test proposal local graphs with text components out of text region
+        maps[:, 0, 60:100, 50:170] = -10.
+        maps[:, 0, 78:82, 78:82] = 10.
+        none_flag, _ = local_graph_generator(maps, feature_maps)
+        self.assertTrue(none_flag)
+
+
+class TestUtils(TestCase):
+
+    def test_normalize_adjacent_matrix(self):
+        adjacent_matrix = np.random.randint(0, 2, (16, 16))
+        normalized_matrix = normalize_adjacent_matrix(adjacent_matrix)
+        self.assertEqual(normalized_matrix.shape, adjacent_matrix.shape)
+
+    def test_feature_embedding(self):
+        out_feat_len = 48
+
+        # test without residue dimensions
+        feats = np.random.randn(10, 8)
+        embed_feats = feature_embedding(feats, out_feat_len)
+        self.assertEqual(embed_feats.shape, (10, out_feat_len))
+
+        # test with residue dimensions
+        feats = np.random.randn(10, 9)
+        embed_feats = feature_embedding(feats, out_feat_len)
+        self.assertEqual(embed_feats.shape, (10, out_feat_len))
+
+
+class TestGCN(TestCase):
+
+    def test_forward(self):
+        num_local_graphs = 32
+        num_max_graph_nodes = 16
+        input_feat_len = 512
+        k = 8
+        gcn = GCN(input_feat_len)
+        node_feat = torch.randn(
+            (num_local_graphs, num_max_graph_nodes, input_feat_len))
+        adjacent_matrix = torch.rand(
+            (num_local_graphs, num_max_graph_nodes, num_max_graph_nodes))
+        knn_inds = torch.randint(1, num_max_graph_nodes, (num_local_graphs, k))
+        output = gcn(node_feat, adjacent_matrix, knn_inds)
+        self.assertEqual(output.size(), (num_local_graphs * k, 2))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_fce_head.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_fce_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..8cf11e79ccb33ecb7d571081dd7ead591c77cb89
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_fce_head.py
@@ -0,0 +1,33 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textdet.heads import FCEHead
+
+
+class TestFCEHead(TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            FCEHead(in_channels='test', fourier_degree=5)
+
+        with self.assertRaises(AssertionError):
+            FCEHead(in_channels=1, fourier_degree='Text')
+
+    def test_forward(self):
+        fce_head = FCEHead(in_channels=10, fourier_degree=5)
+        data = [
+            torch.randn(2, 10, 20, 20),
+            torch.randn(2, 10, 30, 30),
+            torch.randn(2, 10, 40, 40)
+        ]
+        results = fce_head(data)
+        self.assertIn('cls_res', results[0])
+        self.assertIn('reg_res', results[0])
+        self.assertEqual(results[0]['cls_res'].shape, (2, 4, 20, 20))
+        self.assertEqual(results[0]['reg_res'].shape, (2, 22, 20, 20))
+        self.assertEqual(results[1]['cls_res'].shape, (2, 4, 30, 30))
+        self.assertEqual(results[1]['reg_res'].shape, (2, 22, 30, 30))
+        self.assertEqual(results[2]['cls_res'].shape, (2, 4, 40, 40))
+        self.assertEqual(results[2]['reg_res'].shape, (2, 22, 40, 40))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_pan_head.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_pan_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..242bfa29fdc5164d7f50a50a7f8743e4ef91b437
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_pan_head.py
@@ -0,0 +1,25 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textdet.heads import PANHead
+
+
+class TestPANHead(TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            PANHead(in_channels='test', hidden_dim=128, out_channel=6)
+        with self.assertRaises(AssertionError):
+            PANHead(in_channels=['test'], hidden_dim=128, out_channel=6)
+        with self.assertRaises(AssertionError):
+            PANHead(in_channels=[128, 128], hidden_dim='test', out_channel=6)
+        with self.assertRaises(AssertionError):
+            PANHead(in_channels=[128, 128], hidden_dim=128, out_channel='test')
+
+    def test_forward(self):
+        pan_head = PANHead(in_channels=[10], hidden_dim=128, out_channel=6)
+        data = torch.randn((2, 10, 40, 50))
+        results = pan_head(data)
+        self.assertEqual(results.shape, (2, 6, 40, 50))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_pse_head.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_pse_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..4a433000618ca17024609709fa5f81b26430ca99
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_pse_head.py
@@ -0,0 +1,24 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textdet.heads import PSEHead
+
+
+class TestPSEHead(TestCase):
+
+    def setUp(self):
+        self.feature = torch.randn((2, 10, 40, 50))
+
+    def test_init(self):
+        with self.assertRaises(TypeError):
+            PSEHead(in_channels=1)
+
+        with self.assertRaises(TypeError):
+            PSEHead(out_channels='out')
+
+    def test_forward(self):
+        pse_head = PSEHead(in_channels=[10], hidden_dim=128, out_channel=7)
+        results = pse_head(self.feature)
+        self.assertEqual(results.shape, (2, 7, 40, 50))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_textsnake_head.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_textsnake_head.py
new file mode 100644
index 0000000000000000000000000000000000000000..57d65170403e6ce365658ca5a0973fa852c87363
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_heads/test_textsnake_head.py
@@ -0,0 +1,19 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textdet.heads import TextSnakeHead
+
+
+class TestTextSnakeHead(TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            TextSnakeHead(in_channels='test')
+
+    def test_forward(self):
+        ts_head = TextSnakeHead(in_channels=10)
+        data = torch.randn((2, 10, 40, 50))
+        results = ts_head(data, None)
+        self.assertEqual(results.shape, (2, 5, 40, 50))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_db_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_db_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..a9882e7c1b5e5141001a32b53da29dd951121fa0
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_db_module_loss.py
@@ -0,0 +1,65 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.module_losses import DBModuleLoss
+from mmocr.structures import TextDetDataSample
+
+
+class TestDBModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+        self.db_loss = DBModuleLoss(thr_min=0.3, thr_max=0.7)
+        self.data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(40, 40)),
+                gt_instances=InstanceData(
+                    polygons=np.array([
+                        [0, 0, 10, 0, 10, 10, 0, 10],
+                        [20, 0, 30, 0, 30, 10, 20, 10],
+                        [0, 0, 15, 0, 15, 10, 0, 10],
+                    ],
+                                      dtype=np.float32),
+                    ignored=torch.BoolTensor([False, False, True])))
+        ]
+        pred_size = (1, 40, 40)
+        self.preds = (torch.rand(pred_size), torch.rand(pred_size),
+                      torch.rand(pred_size))
+
+    def test_is_poly_invalid(self):
+        # area < 1
+        poly = np.array([0, 0, 0.5, 0, 0.5, 0.5, 0, 0.5], dtype=np.float32)
+        self.assertTrue(self.db_loss._is_poly_invalid(poly))
+
+        # Sidelength < min_sidelength
+        # area < 1
+        poly = np.array([0.5, 0.5, 2.5, 2.5, 2, 3, 0, 1], dtype=np.float32)
+        self.assertTrue(self.db_loss._is_poly_invalid(poly))
+
+        # A good enough polygon
+        poly = np.array([0, 0, 10, 0, 10, 10, 0, 10], dtype=np.float32)
+        self.assertFalse(self.db_loss._is_poly_invalid(poly))
+
+    def test_draw_border_map(self):
+        img_size = (40, 40)
+        thr_map = np.zeros(img_size, dtype=np.float32)
+        thr_mask = np.zeros(img_size, dtype=np.float32)
+        polygon = np.array([20, 21, -14, 20, -11, 30, -22, 26],
+                           dtype=np.float32)
+        self.db_loss._draw_border_map(polygon, thr_map, thr_mask)
+
+    def test_generate_thr_map(self):
+        data_sample = self.data_samples[0]
+        text_polys = data_sample.gt_instances.polygons[:2]
+        thr_map, _ = self.db_loss._generate_thr_map(data_sample.img_shape,
+                                                    text_polys)
+        assert np.all((thr_map >= 0.29) * (thr_map <= 0.71))
+
+    def test_forward(self):
+        losses = self.db_loss(self.preds, self.data_samples)
+        assert 'loss_prob' in losses
+        assert 'loss_thr' in losses
+        assert 'loss_db' in losses
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_drrg_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_drrg_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..7edfdbcc46a8f51ae7ada269a8ff5ab95948cd8e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_drrg_module_loss.py
@@ -0,0 +1,101 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.module_losses import DRRGModuleLoss
+from mmocr.structures import TextDetDataSample
+
+
+class TestDRRGModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+        preds_maps = torch.rand(1, 6, 64, 64)
+        gcn_pred = torch.rand(1, 2)
+        gt_labels = torch.zeros((1), dtype=torch.long)
+        self.preds = (preds_maps, gcn_pred, gt_labels)
+        self.data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(64, 64)),
+                gt_instances=InstanceData(
+                    polygons=[
+                        np.array([4, 2, 30, 2, 30, 10, 4, 10]),
+                        np.array([36, 12, 8, 12, 8, 22, 36, 22]),
+                        np.array([48, 20, 52, 20, 52, 50, 48, 50]),
+                        np.array([44, 50, 38, 50, 38, 20, 44, 20])
+                    ],
+                    ignored=torch.BoolTensor([False, False, False, False])))
+        ]
+
+    def test_forward(self):
+        loss = DRRGModuleLoss()
+        loss_output = loss(self.preds, self.data_samples)
+        self.assertIsInstance(loss_output, dict)
+        self.assertIn('loss_text', loss_output)
+        self.assertIn('loss_center', loss_output)
+        self.assertIn('loss_height', loss_output)
+        self.assertIn('loss_sin', loss_output)
+        self.assertIn('loss_cos', loss_output)
+        self.assertIn('loss_gcn', loss_output)
+
+    def test_get_targets(self):
+        # test get_targets
+        loss = DRRGModuleLoss(
+            min_width=2.,
+            max_width=4.,
+            min_rand_half_height=3.,
+            max_rand_half_height=5.)
+        targets = loss.get_targets(self.data_samples)
+        for target in targets[:-1]:
+            self.assertEqual(len(target), 1)
+        self.assertEqual(targets[-1][0].shape[-1], 8)
+
+        # test generate_targets with blank polygon masks
+        blank_data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(20, 20)),
+                gt_instances=InstanceData(
+                    polygons=[], ignored=torch.BoolTensor([])))
+        ]
+        targets = loss.get_targets(blank_data_samples)
+        self.assertGreater(targets[-1][0][0, 0], 8)
+
+        # test get_targets with the number of proposed text components exceeds
+        # num_max_comps
+        loss = DRRGModuleLoss(
+            min_width=2.,
+            max_width=4.,
+            min_rand_half_height=3.,
+            max_rand_half_height=5.,
+            num_max_comps=6)
+        targets = loss.get_targets(self.data_samples)
+        self.assertEqual(targets[-1][0].ndim, 2)
+        self.assertEqual(targets[-1][0].shape[0], 6)
+
+        # test generate_targets with one proposed text component
+        data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(20, 30)),
+                gt_instances=InstanceData(
+                    polygons=[np.array([13, 6, 17, 6, 17, 14, 13, 14])],
+                    ignored=torch.BoolTensor([False])))
+        ]
+        loss = DRRGModuleLoss(
+            min_width=4.,
+            max_width=8.,
+            min_rand_half_height=3.,
+            max_rand_half_height=5.)
+        targets = loss.get_targets(data_samples)
+        self.assertGreater(targets[-1][0][0, 0], 8)
+
+        # test generate_targets with shrunk margin in
+        # generate_rand_comp_attribs
+        loss = DRRGModuleLoss(
+            min_width=2.,
+            max_width=30.,
+            min_rand_half_height=3.,
+            max_rand_half_height=30.)
+        targets = loss.get_targets(data_samples)
+        self.assertGreater(targets[-1][0][0, 0], 8)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_fce_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_fce_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..c656c1e580901445649f85c78b73b7e58719beb7
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_fce_module_loss.py
@@ -0,0 +1,45 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.module_losses import FCEModuleLoss
+from mmocr.structures import TextDetDataSample
+
+
+class TestFCEModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+        self.fce_loss = FCEModuleLoss(fourier_degree=5, num_sample=400)
+        self.data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(320, 320)),
+                gt_instances=InstanceData(
+                    polygons=np.array([
+                        [0, 0, 10, 0, 10, 10, 0, 10],
+                        [20, 0, 30, 0, 30, 10, 20, 10],
+                        [0, 0, 15, 0, 15, 10, 0, 10],
+                    ],
+                                      dtype=np.float32),
+                    ignored=torch.BoolTensor([False, False, True])))
+        ]
+        self.preds = [
+            dict(
+                cls_res=torch.rand(1, 4, 40, 40),
+                reg_res=torch.rand(1, 22, 40, 40)),
+            dict(
+                cls_res=torch.rand(1, 4, 20, 20),
+                reg_res=torch.rand(1, 22, 20, 20)),
+            dict(
+                cls_res=torch.rand(1, 4, 10, 10),
+                reg_res=torch.rand(1, 22, 10, 10))
+        ]
+
+    def test_forward(self):
+        losses = self.fce_loss(self.preds, self.data_samples)
+        assert 'loss_text' in losses
+        assert 'loss_center' in losses
+        assert 'loss_reg_x' in losses
+        assert 'loss_reg_y' in losses
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_pan_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_pan_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..3e7d439658318d530d02069ce5334aa1c90c9026
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_pan_module_loss.py
@@ -0,0 +1,73 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+import torch.nn as nn
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.module_losses import PANModuleLoss
+from mmocr.models.textdet.module_losses.pan_module_loss import PANEmbLossV1
+from mmocr.structures import TextDetDataSample
+
+
+class TestPANModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+
+        self.data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(40, 40)),
+                gt_instances=InstanceData(
+                    polygons=np.array([
+                        [0, 0, 10, 0, 10, 10, 0, 10],
+                        [20, 0, 30, 0, 30, 10, 20, 10],
+                        [0, 0, 15, 0, 15, 10, 0, 10],
+                    ],
+                                      dtype=np.float32),
+                    ignored=torch.BoolTensor([False, False, True])))
+        ]
+        pred_size = (1, 6, 10, 10)
+        self.preds = torch.rand(pred_size)
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            PANModuleLoss(reduction=1)
+        pan_loss = PANModuleLoss()
+        self.assertIsInstance(pan_loss.loss_text, nn.Module)
+        self.assertIsInstance(pan_loss.loss_kernel, nn.Module)
+        self.assertIsInstance(pan_loss.loss_embedding, nn.Module)
+
+    def test_get_target(self):
+        pan_loss = PANModuleLoss()
+        gt_kernels, gt_masks = pan_loss.get_targets(self.data_samples)
+        self.assertEqual(gt_kernels.shape, (2, 1, 40, 40))
+        self.assertEqual(gt_masks.shape, (1, 40, 40))
+
+    def test_pan_loss(self):
+        pan_loss = PANModuleLoss()
+        loss = pan_loss(self.preds, self.data_samples)
+        self.assertIn('loss_text', loss)
+        self.assertIn('loss_kernel', loss)
+        self.assertIn('loss_embedding', loss)
+
+
+class TestPANEmbLossV1(TestCase):
+
+    def test_forward(self):
+        loss = PANEmbLossV1()
+
+        pred = torch.rand((2, 4, 10, 10))
+        gt = torch.rand((2, 10, 10))
+        mask = torch.rand((2, 10, 10))
+        instance = torch.zeros_like(gt)
+        instance[:, 2:4, 2:4] = 1
+        instance[:, 6:8, 6:8] = 2
+
+        loss_value = loss(pred, instance, gt, mask)
+        self.assertEqual(loss_value.shape, torch.Size([2]))
+
+        instance = instance = torch.zeros_like(gt)
+        loss_value = loss(pred, instance, gt, mask)
+        self.assertTrue((loss_value == torch.zeros(2,
+                                                   dtype=torch.float32)).all())
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_pse_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_pse_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..5a2d591f8f36c54cb3d0ea844b70b5ccb0e17e47
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_pse_module_loss.py
@@ -0,0 +1,45 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+import torch.nn as nn
+from mmengine.structures import InstanceData
+from parameterized import parameterized
+
+from mmocr.models.textdet.module_losses import PSEModuleLoss
+from mmocr.structures import TextDetDataSample
+
+
+class TestPSEModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+        self.data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(40, 40)),
+                gt_instances=InstanceData(
+                    polygons=np.array([
+                        [0, 0, 10, 0, 10, 10, 0, 10],
+                        [20, 0, 30, 0, 30, 10, 20, 10],
+                        [0, 0, 15, 0, 15, 10, 0, 10],
+                    ],
+                                      dtype=np.float32),
+                    ignored=torch.BoolTensor([False, False, True])))
+        ]
+        pred_size = (1, 7, 10, 10)
+        self.preds = torch.rand(pred_size)
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            PSEModuleLoss(reduction=1)
+        pse_loss = PSEModuleLoss(reduction='sum')
+        self.assertIsInstance(pse_loss.loss_text, nn.Module)
+        self.assertIsInstance(pse_loss.loss_kernel, nn.Module)
+
+    @parameterized.expand([('mean', 'hard'), ('sum', 'adaptive')])
+    def test_forward(self, reduction, kernel_sample_type):
+        pse_loss = PSEModuleLoss(
+            reduction=reduction, kernel_sample_type=kernel_sample_type)
+        loss = pse_loss(self.preds, self.data_samples)
+        self.assertIn('loss_text', loss)
+        self.assertIn('loss_kernel', loss)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_textsnake_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_textsnake_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..8cc3423150fb0e17ad4cc2eae3969b446e5204e6
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_module_losses/test_textsnake_module_loss.py
@@ -0,0 +1,110 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.module_losses import TextSnakeModuleLoss
+from mmocr.structures import TextDetDataSample
+
+
+class TestTextSnakeModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+        self.loss = TextSnakeModuleLoss()
+
+        self.data_samples = [
+            TextDetDataSample(
+                metainfo=dict(img_shape=(3, 10)),
+                gt_instances=InstanceData(
+                    polygons=np.array([
+                        [0, 0, 1, 0, 1, 1, 0, 1],
+                        [2, 0, 3, 0, 3, 1, 2, 1],
+                    ],
+                                      dtype=np.float32),
+                    ignored=torch.BoolTensor([False, False])))
+        ]
+        self.preds = torch.rand((1, 5, 3, 10))
+
+    def test_forward(self):
+        loss_output = self.loss(self.preds, self.data_samples)
+        self.assertTrue(isinstance(loss_output, dict))
+        self.assertIn('loss_text', loss_output)
+        self.assertIn('loss_center', loss_output)
+        self.assertIn('loss_radius', loss_output)
+        self.assertIn('loss_sin', loss_output)
+        self.assertIn('loss_cos', loss_output)
+
+    def test_find_head_tail(self):
+        # for quadrange
+        polygon = np.array([[1.0, 1.0], [5.0, 1.0], [5.0, 3.0], [1.0, 3.0]])
+        head_inds, tail_inds = self.loss._find_head_tail(polygon, 2.0)
+        self.assertTrue(np.allclose(head_inds, [3, 0]))
+        self.assertTrue(np.allclose(tail_inds, [1, 2]))
+        polygon = np.array([[1.0, 1.0], [1.0, 3.0], [5.0, 3.0], [5.0, 1.0]])
+        head_inds, tail_inds = self.loss._find_head_tail(polygon, 2.0)
+        self.assertTrue(np.allclose(head_inds, [0, 1]))
+        self.assertTrue(np.allclose(tail_inds, [2, 3]))
+
+        # for polygon
+        polygon = np.array([[0., 10.], [3., 3.], [10., 0.], [17., 3.],
+                            [20., 10.], [15., 10.], [13.5, 6.5], [10., 5.],
+                            [6.5, 6.5], [5., 10.]])
+        head_inds, tail_inds = self.loss._find_head_tail(polygon, 2.0)
+        self.assertTrue(np.allclose(head_inds, [9, 0]))
+        self.assertTrue(np.allclose(tail_inds, [4, 5]))
+
+    def test_vector_angle(self):
+        v1 = np.array([[-1, 0], [0, 1]])
+        v2 = np.array([[1, 0], [0, 1]])
+        angles = self.loss.vector_angle(v1, v2)
+        self.assertTrue(np.allclose(angles, np.array([np.pi, 0]), atol=1e-3))
+
+    def test_resample_line(self):
+        # test resample_line
+        line = np.array([[0, 0], [0, 1], [0, 3], [0, 4], [0, 7], [0, 8]])
+        resampled_line = self.loss._resample_line(line, 3)
+        self.assertEqual(len(resampled_line), 3)
+        self.assertTrue(
+            np.allclose(resampled_line, np.array([[0, 0], [0, 4], [0, 8]])))
+        line = np.array([[0, 0], [0, 0]])
+        resampled_line = self.loss._resample_line(line, 4)
+        self.assertEqual(len(resampled_line), 4)
+        self.assertTrue(
+            np.allclose(resampled_line,
+                        np.array([[0, 0], [0, 0], [0, 0], [0, 0]])))
+
+    def test_generate_text_region_mask(self):
+        img_size = (3, 10)
+        text_polys = [
+            np.array([0, 0, 1, 0, 1, 1, 0, 1]),
+            np.array([2, 0, 3, 0, 3, 1, 2, 1])
+        ]
+        output = self.loss._generate_text_region_mask(img_size, text_polys)
+        target = np.array([[1, 1, 1, 1, 0, 0, 0, 0, 0, 0],
+                           [1, 1, 1, 1, 0, 0, 0, 0, 0, 0],
+                           [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]])
+        self.assertTrue(np.allclose(output, target))
+
+    def test_generate_center_mask_attrib_maps(self):
+        img_size = (3, 10)
+        text_polys = [
+            np.array([0, 0, 1, 0, 1, 1, 0, 1]),
+            np.array([2, 0, 3, 0, 3, 1, 2, 1])
+        ]
+        self.loss.center_region_shrink_ratio = 1.0
+        (center_region_mask, radius_map, sin_map,
+         cos_map) = self.loss._generate_center_mask_attrib_maps(
+             img_size, text_polys)
+        target = np.array([[1, 1, 1, 1, 0, 0, 0, 0, 0, 0],
+                           [1, 1, 1, 1, 0, 0, 0, 0, 0, 0],
+                           [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]])
+        self.assertTrue(np.allclose(center_region_mask, target))
+        self.assertTrue(np.allclose(sin_map, np.zeros(img_size)))
+        self.assertTrue(np.allclose(cos_map, target))
+
+    def test_get_targets(self):
+        targets = self.loss.get_targets(self.data_samples)
+        for target in targets:
+            self.assertEqual(len(target), 1)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpem_ffm.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpem_ffm.py
new file mode 100644
index 0000000000000000000000000000000000000000..86f3115c783734673fd895275d55a5b514f25fe3
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpem_ffm.py
@@ -0,0 +1,46 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textdet.necks.fpem_ffm import FPEM, FPEM_FFM
+
+
+class TestFPEM(unittest.TestCase):
+
+    def setUp(self):
+        self.c2 = torch.Tensor(1, 8, 64, 64)
+        self.c3 = torch.Tensor(1, 8, 32, 32)
+        self.c4 = torch.Tensor(1, 8, 16, 16)
+        self.c5 = torch.Tensor(1, 8, 8, 8)
+        self.fpem = FPEM(in_channels=8)
+
+    def test_forward(self):
+        neck = FPEM(in_channels=8)
+        neck.init_weights()
+        out = neck(self.c2, self.c3, self.c4, self.c5)
+        self.assertTrue(out[0].shape == self.c2.shape)
+        self.assertTrue(out[1].shape == self.c3.shape)
+        self.assertTrue(out[2].shape == self.c4.shape)
+        self.assertTrue(out[3].shape == self.c5.shape)
+
+
+class TestFPEM_FFM(unittest.TestCase):
+
+    def setUp(self):
+        self.c2 = torch.Tensor(1, 8, 64, 64)
+        self.c3 = torch.Tensor(1, 16, 32, 32)
+        self.c4 = torch.Tensor(1, 32, 16, 16)
+        self.c5 = torch.Tensor(1, 64, 8, 8)
+        self.in_channels = [8, 16, 32, 64]
+        self.conv_out = 8
+        self.features = [self.c2, self.c3, self.c4, self.c5]
+
+    def test_forward(self):
+        neck = FPEM_FFM(in_channels=self.in_channels, conv_out=self.conv_out)
+        neck.init_weights()
+        out = neck(self.features)
+        self.assertTrue(out[0].shape == torch.Size([1, 8, 64, 64]))
+        self.assertTrue(out[1].shape == out[0].shape)
+        self.assertTrue(out[2].shape == out[0].shape)
+        self.assertTrue(out[3].shape == out[0].shape)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpn_cat.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpn_cat.py
new file mode 100644
index 0000000000000000000000000000000000000000..49db5b817a60d71ed7f451030e587c7772ff7a2b
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpn_cat.py
@@ -0,0 +1,33 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textdet.necks import FPNC
+
+
+class TestFPNC(unittest.TestCase):
+
+    def test_forward(self):
+        in_channels = [64, 128, 256, 512]
+        size = [112, 56, 28, 14]
+        asf_cfgs = [
+            None,
+            dict(attention_type='ScaleChannelSpatial'),
+        ]
+        for flag in [False, True]:
+            for asf_cfg in asf_cfgs:
+                fpnc = FPNC(
+                    in_channels=in_channels,
+                    bias_on_lateral=flag,
+                    bn_re_on_lateral=flag,
+                    bias_on_smooth=flag,
+                    bn_re_on_smooth=flag,
+                    asf_cfg=asf_cfg,
+                    conv_after_concat=flag)
+            fpnc.init_weights()
+            inputs = []
+            for i in range(4):
+                inputs.append(torch.rand(1, in_channels[i], size[i], size[i]))
+            outputs = fpnc.forward(inputs)
+            self.assertListEqual(list(outputs.size()), [1, 256, 112, 112])
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpn_unet.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpn_unet.py
new file mode 100644
index 0000000000000000000000000000000000000000..723af11906043e76ffc68ee6353897b3db4913ab
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpn_unet.py
@@ -0,0 +1,32 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textdet.necks import FPN_UNet
+
+
+class TestFPNUnet(unittest.TestCase):
+
+    def setUp(self):
+        self.s = 64
+        feat_sizes = [self.s // 2**i for i in range(4)]
+        self.in_channels = [8, 16, 32, 64]
+        self.out_channels = 4
+        self.feature = [
+            torch.rand(1, self.in_channels[i], feat_sizes[i], feat_sizes[i])
+            for i in range(len(self.in_channels))
+        ]
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            FPN_UNet(self.in_channels + [128], self.out_channels)
+        with self.assertRaises(AssertionError):
+            FPN_UNet(self.in_channels, [2, 4])
+
+    def test_forward(self):
+        neck = FPN_UNet(self.in_channels, self.out_channels)
+        neck.init_weights()
+        out = neck(self.feature)
+        self.assertTrue(out.shape == torch.Size(
+            [1, self.out_channels, self.s * 4, self.s * 4]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpnf.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpnf.py
new file mode 100644
index 0000000000000000000000000000000000000000..0eeb1f44a3d669958f6f67361c6c9dbc0521c8e4
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_necks/test_fpnf.py
@@ -0,0 +1,24 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+from parameterized import parameterized
+
+from mmocr.models.textdet.necks import FPNF
+
+
+class TestFPNF(unittest.TestCase):
+
+    def setUp(self):
+        in_channels = [256, 512, 1024, 2048]
+        size = [112, 56, 28, 14]
+        inputs = []
+        for i in range(4):
+            inputs.append(torch.rand(1, in_channels[i], size[i], size[i]))
+        self.inputs = inputs
+
+    @parameterized.expand([('concat'), ('add')])
+    def test_forward(self, fusion_type):
+        fpnf = FPNF(fusion_type=fusion_type)
+        outputs = fpnf.forward(self.inputs)
+        self.assertListEqual(list(outputs.size()), [1, 256, 112, 112])
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_base_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_base_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..c14fefaed68c98876dcb362e87c5a5e8f26e432c
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_base_postprocessor.py
@@ -0,0 +1,121 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+from unittest import mock
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.postprocessors import BaseTextDetPostProcessor
+from mmocr.structures import TextDetDataSample
+
+
+class TestBaseTextDetPostProcessor(unittest.TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            BaseTextDetPostProcessor(text_repr_type='polygon')
+        with self.assertRaises(AssertionError):
+            BaseTextDetPostProcessor(rescale_fields='bbox')
+        with self.assertRaises(AssertionError):
+            BaseTextDetPostProcessor(train_cfg='test')
+        with self.assertRaises(AssertionError):
+            BaseTextDetPostProcessor(test_cfg='test')
+
+    @mock.patch(f'{__name__}.BaseTextDetPostProcessor.get_text_instances')
+    def test_call(self, mock_get_text_instances):
+
+        def mock_func(x, y, **kwargs):
+            return y
+
+        mock_get_text_instances.side_effect = mock_func
+
+        pred_results = torch.Tensor([[0.1, 0.2], [0.3, 0.4]])
+        data_samples = [
+            TextDetDataSample(
+                metainfo=dict(scale_factor=(0.5, 1)),
+                pred_instances=InstanceData(
+                    polygons=[np.array([0, 0, 0, 1, 2, 1, 2, 0])])),
+            TextDetDataSample(
+                metainfo=dict(scale_factor=(1, 0.5)),
+                pred_instances=InstanceData(polygons=[
+                    np.array([0, 0, 0, 1, 2, 1, 2, 0]),
+                    np.array([1, 1, 1, 2, 3, 2, 3, 1])
+                ]))
+        ]
+        base_postprocessor = BaseTextDetPostProcessor(
+            rescale_fields=['polygons'])
+        results = base_postprocessor(pred_results, data_samples)
+        self.assertEqual(len(results), 2)
+        self.assertTrue(
+            np.array_equal(results[0].pred_instances.polygons,
+                           [np.array([0, 0, 0, 1, 4, 1, 4, 0])]))
+        self.assertTrue(
+            np.array_equal(results[1].pred_instances.polygons, [
+                np.array([0, 0, 0, 2, 2, 2, 2, 0]),
+                np.array([1, 2, 1, 4, 3, 4, 3, 2])
+            ]))
+
+    def test_rescale(self):
+
+        data_sample = TextDetDataSample()
+        data_sample.pred_instances = InstanceData()
+        data_sample.pred_instances.polygons = [
+            np.array([0, 0, 0, 1, 1, 1, 1, 0])
+        ]
+
+        base_postprocessor = BaseTextDetPostProcessor(
+            text_repr_type='poly', rescale_fields=['polygons'])
+        rescaled_data_sample = base_postprocessor.rescale(
+            data_sample, (0.5, 1))
+        self.assertTrue(
+            np.array_equal(rescaled_data_sample.pred_instances.polygons,
+                           [[0, 0, 0, 1, 2, 1, 2, 0]]))
+
+    def test_get_text_instances(self):
+        with self.assertRaises(NotImplementedError):
+            BaseTextDetPostProcessor().get_text_instances(None, None)
+
+    def test_split_results(self):
+
+        # some shorthands
+        lt = torch.LongTensor
+        ft = torch.FloatTensor
+
+        base_postprocessor = BaseTextDetPostProcessor()
+
+        # test invalid arguments
+        with self.assertRaises(AssertionError):
+            base_postprocessor.split_results(None)
+
+        results = [lt([0, 1, 5]), ft([0.2, 0.3])]
+        with self.assertRaises(AssertionError):
+            base_postprocessor.split_results(results)
+
+        # test split_results
+        results = [lt([0, 1, 5]), ft([0.2, 0.3, 0.6])]
+        split_results = base_postprocessor.split_results(results)
+        self.assertEqual(split_results,
+                         [[lt([0]), ft([0.2])], [lt([1]), ft([0.3])],
+                          [lt([5]), ft([0.6])]])
+
+        results = lt([0, 1, 5])
+        split_results = base_postprocessor.split_results(results)
+        self.assertEqual(split_results, [lt([0]), lt([1]), lt([5])])
+
+    def test_poly_nms(self):
+        base_postprocessor = BaseTextDetPostProcessor(text_repr_type='poly')
+        polygons = [
+            np.array([0., 0., 10., 0., 10., 10., 0., 10.]),
+            np.array([5., 0., 15., 0., 15., 10., 5., 10.])
+        ]
+        scores = [0.9, 0.8]
+        keep = base_postprocessor.poly_nms(polygons, scores, 0.6)
+
+        self.assertEqual(len(keep[0]), 2)
+        self.assertTrue(np.allclose(keep[0][0], polygons[0]))
+        self.assertTrue(np.allclose(keep[0][1], polygons[1]))
+
+        keep = base_postprocessor.poly_nms(polygons, scores, 0.2)
+        self.assertEqual(len(keep[0]), 1)
+        self.assertTrue(np.allclose(keep[0][0], polygons[0]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_db_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_db_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..ddb40717e9257f69bb2edcff37f90f64299261ac
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_db_postprocessor.py
@@ -0,0 +1,56 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from parameterized import parameterized
+
+from mmocr.models.textdet.postprocessors import DBPostprocessor
+from mmocr.structures import TextDetDataSample
+
+
+class TestDBPostProcessor(unittest.TestCase):
+
+    def test_get_bbox_score(self):
+        postprocessor = DBPostprocessor()
+        score_map = np.arange(0, 1, step=0.05).reshape(4, 5)
+        poly_pts = np.array(((0, 0), (0, 1), (1, 1), (1, 0)))
+        self.assertAlmostEqual(
+            postprocessor._get_bbox_score(score_map, poly_pts), 0.15)
+
+    @parameterized.expand([('poly'), ('quad')])
+    def test_get_text_instances(self, text_repr_type):
+
+        postprocessor = DBPostprocessor(text_repr_type=text_repr_type)
+        pred_result = torch.rand(4, 5)
+        data_sample = TextDetDataSample(
+            metainfo=dict(scale_factor=(0.5, 1)),
+            gt_instances=InstanceData(polygons=[
+                np.array([0, 0, 0, 1, 2, 1, 2, 0]),
+                np.array([1, 1, 1, 2, 3, 2, 3, 1])
+            ]))
+        results = postprocessor.get_text_instances(pred_result, data_sample)
+        self.assertIn('polygons', results.pred_instances)
+        self.assertIn('scores', results.pred_instances)
+        self.assertTrue(
+            isinstance(results.pred_instances['scores'], torch.FloatTensor))
+
+        preds = torch.FloatTensor([[0.8, 0.8, 0.8, 0.8, 0],
+                                   [0.8, 0.8, 0.8, 0.8, 0],
+                                   [0.8, 0.8, 0.8, 0.8, 0],
+                                   [0.8, 0.8, 0.8, 0.8, 0],
+                                   [0.8, 0.8, 0.8, 0.8, 0]])
+        postprocessor = DBPostprocessor(
+            text_repr_type=text_repr_type, min_text_width=0)
+        results = postprocessor.get_text_instances(preds, data_sample)
+        self.assertEqual(len(results.pred_instances['polygons']), 1)
+
+        postprocessor = DBPostprocessor(
+            min_text_score=1, text_repr_type=text_repr_type)
+        pred_result = torch.rand(4, 5) * 0.8
+        results = postprocessor.get_text_instances(pred_result, data_sample)
+        self.assertEqual(results.pred_instances.polygons, [])
+        self.assertTrue(
+            isinstance(results.pred_instances['scores'], torch.FloatTensor))
+        self.assertEqual(len(results.pred_instances.scores), 0)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_drrg_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_drrg_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..eabedb12d32ea925c5765e7482b548d40946fb5c
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_drrg_postprocessor.py
@@ -0,0 +1,50 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.models.textdet.postprocessors import DRRGPostprocessor
+from mmocr.structures import TextDetDataSample
+
+
+class TestDRRGPostProcessor(unittest.TestCase):
+
+    def test_call(self):
+
+        postprocessor = DRRGPostprocessor()
+        pred_results = (np.random.randint(0, 2, (10, 2)), np.random.rand(10),
+                        np.random.rand(2, 9))
+        data_sample = TextDetDataSample(
+            metainfo=dict(scale_factor=(0.5, 1)),
+            gt_instances=InstanceData(polygons=[
+                np.array([0, 0, 0, 1, 2, 1, 2, 0]),
+                np.array([1, 1, 1, 2, 3, 2, 3, 1])
+            ]))
+        result = postprocessor(pred_results, [data_sample])[0]
+        self.assertIn('polygons', result.pred_instances)
+        self.assertIn('scores', result.pred_instances)
+        self.assertTrue(
+            isinstance(result.pred_instances['scores'], torch.FloatTensor))
+
+    def test_comps2polys(self):
+        postprocessor = DRRGPostprocessor()
+
+        x1 = np.arange(2, 18, 2)
+        x2 = x1 + 2
+        y1 = np.ones(8) * 2
+        y2 = y1 + 2
+        comp_scores = np.ones(8, dtype=np.float32) * 0.9
+        text_comps = np.stack([x1, y1, x2, y1, x2, y2, x1, y2,
+                               comp_scores]).transpose()
+        comp_labels = np.array([1, 1, 1, 1, 1, 3, 5, 5])
+        shuffle = [3, 2, 5, 7, 6, 0, 4, 1]
+
+        boundaries = postprocessor._comps2polys(text_comps[shuffle],
+                                                comp_labels[shuffle])
+        self.assertEqual(len(boundaries[0]), 3)
+
+        boundaries = postprocessor._comps2polys(text_comps[[]],
+                                                comp_labels[[]])
+        self.assertEqual(len(boundaries[0]), 0)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_fce_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_fce_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..b6cb89ae89d401fe55610722bcd35345f5aa0a9e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_fce_postprocessor.py
@@ -0,0 +1,70 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from parameterized import parameterized
+
+from mmocr.models.textdet.postprocessors import FCEPostprocessor
+from mmocr.structures import TextDetDataSample
+
+
+class TestFCEPostProcessor(unittest.TestCase):
+
+    def test_split_results(self):
+        pred_results = [
+            dict(
+                cls_res=torch.rand(2, 4, 10, 10),
+                reg_res=torch.rand(2, 21, 10, 10)),
+            dict(
+                cls_res=torch.rand(2, 4, 20, 20),
+                reg_res=torch.rand(2, 21, 20, 20)),
+            dict(
+                cls_res=torch.rand(2, 4, 40, 40),
+                reg_res=torch.rand(2, 21, 40, 40)),
+        ]
+        postprocessor = FCEPostprocessor(
+            fourier_degree=5, num_reconstr_points=20, score_thr=0.3)
+        split_results = postprocessor.split_results(pred_results)
+        self.assertEqual(len(split_results), 2)
+        self.assertEqual(len(split_results[0]), 3)
+        self.assertEqual(len(split_results[1]), 3)
+        self.assertEqual(split_results[0][0]['cls_res'].shape, (4, 10, 10))
+        self.assertEqual(split_results[0][0]['reg_res'].shape, (21, 10, 10))
+
+    @parameterized.expand([('poly'), ('quad')])
+    def test_get_text_instances(self, text_repr_type):
+        postprocessor = FCEPostprocessor(
+            fourier_degree=5,
+            num_reconstr_points=20,
+            score_thr=0.3,
+            text_repr_type=text_repr_type)
+        pred_result = [
+            dict(
+                cls_res=torch.rand(4, 10, 10), reg_res=torch.rand(22, 10, 10)),
+            dict(
+                cls_res=torch.rand(4, 20, 20), reg_res=torch.rand(22, 20, 20)),
+            dict(
+                cls_res=torch.rand(4, 30, 30), reg_res=torch.rand(22, 30, 30)),
+        ]
+        data_sample = TextDetDataSample(
+            gt_instances=InstanceData(polygons=[
+                np.array([0, 0, 0, 1, 2, 1, 2, 0]),
+                np.array([1, 1, 1, 2, 3, 2, 3, 1])
+            ]))
+        results = postprocessor.get_text_instances(pred_result, data_sample)
+        self.assertIn('polygons', results.pred_instances)
+        self.assertIn('scores', results.pred_instances)
+        self.assertTrue(
+            isinstance(results.pred_instances.scores, torch.FloatTensor))
+        self.assertEqual(
+            len(results.pred_instances.scores),
+            len(results.pred_instances.polygons))
+        if len(results.pred_instances.polygons) > 0:
+            if text_repr_type == 'poly':
+                self.assertEqual(results.pred_instances.polygons[0].shape,
+                                 (40, ))
+            else:
+                self.assertEqual(results.pred_instances.polygons[0].shape,
+                                 (8, ))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_pan_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_pan_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..331145398fe0c7ecb77c13a7ace28e2b838216bd
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_pan_postprocessor.py
@@ -0,0 +1,59 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+from parameterized import parameterized
+
+from mmocr.models.textdet.postprocessors import PANPostprocessor
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import poly2shapely, poly_iou
+
+
+class TestPANPostprocessor(unittest.TestCase):
+
+    @parameterized.expand([('poly'), ('quad')])
+    def test_get_text_instances(self, text_repr_type):
+        postprocessor = PANPostprocessor(text_repr_type=text_repr_type)
+        pred_result = torch.rand(6, 4, 5)
+        data_sample = TextDetDataSample(metainfo=dict(scale_factor=(0.5, 1)))
+        results = postprocessor.get_text_instances(pred_result, data_sample)
+        self.assertIn('polygons', results.pred_instances)
+        self.assertIn('scores', results.pred_instances)
+
+        postprocessor = PANPostprocessor(
+            min_text_confidence=1, text_repr_type=text_repr_type)
+        pred_result = torch.rand(6, 4, 5) * 0.8
+        results = postprocessor.get_text_instances(pred_result, data_sample)
+        self.assertEqual(results.pred_instances.polygons, [])
+        self.assertTrue(
+            (results.pred_instances.scores == torch.FloatTensor([])).all())
+
+    def test_points2boundary(self):
+
+        postprocessor = PANPostprocessor(text_repr_type='quad')
+
+        # test invalid arguments
+        with self.assertRaises(AssertionError):
+            postprocessor._points2boundary([])
+
+        points = np.array([[0, 0], [1, 0], [2, 0], [0, 1], [1, 1], [2, 1],
+                           [0, 2], [1, 2], [2, 2]])
+
+        # test quad
+        postprocessor = PANPostprocessor(text_repr_type='quad')
+
+        result = postprocessor._points2boundary(points)
+        pred_poly = poly2shapely(result)
+        target_poly = poly2shapely([2, 2, 0, 2, 0, 0, 2, 0])
+        self.assertEqual(poly_iou(pred_poly, target_poly), 1)
+
+        result = postprocessor._points2boundary(points, min_width=3)
+        self.assertEqual(len(result), 0)
+
+        # test poly
+        postprocessor = PANPostprocessor(text_repr_type='poly')
+        result = postprocessor._points2boundary(points)
+        pred_poly = poly2shapely(result)
+        target_poly = poly2shapely([0, 0, 0, 2, 2, 2, 2, 0])
+        assert poly_iou(pred_poly, target_poly) == 1
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_pse_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_pse_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..c9fdd56d1b1622656b50b37632083cb858a3a0fc
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_pse_postprocessor.py
@@ -0,0 +1,30 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+from parameterized import parameterized
+
+from mmocr.models.textdet.postprocessors import PSEPostprocessor
+from mmocr.structures import TextDetDataSample
+
+
+class TestPSEPostprocessor(unittest.TestCase):
+
+    @parameterized.expand([('poly'), ('quad')])
+    def test_get_text_instances(self, text_repr_type):
+        postprocessor = PSEPostprocessor(text_repr_type=text_repr_type)
+        pred_result = torch.rand(6, 4, 5)
+        data_sample = TextDetDataSample(metainfo=dict(scale_factor=(0.5, 1)))
+        results = postprocessor.get_text_instances(pred_result, data_sample)
+        self.assertIn('polygons', results.pred_instances)
+        self.assertIn('scores', results.pred_instances)
+
+        postprocessor = PSEPostprocessor(
+            score_threshold=1,
+            min_kernel_confidence=1,
+            text_repr_type=text_repr_type)
+        pred_result = torch.rand(6, 4, 5) * 0.8
+        results = postprocessor.get_text_instances(pred_result, data_sample)
+        self.assertEqual(results.pred_instances.polygons, [])
+        self.assertTrue(
+            (results.pred_instances.scores == torch.FloatTensor([])).all())
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_textsnake_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_textsnake_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..01dcc785294cf15c709c822a97fe4c41060aa24a
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_postprocessors/test_textsnake_postprocessor.py
@@ -0,0 +1,54 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+from parameterized import parameterized
+
+from mmocr.models.textdet.postprocessors import TextSnakePostprocessor
+from mmocr.structures import TextDetDataSample
+
+
+class TestTextSnakePostProcessor(unittest.TestCase):
+
+    def setUp(self):
+        # test decoding with text center region of small area
+        maps = torch.zeros((1, 5, 224, 224), dtype=torch.float)
+        maps[:, 0:2, :, :] = -10.
+        maps[:, 0, 60:100, 50:170] = 10.
+        maps[:, 1, 75:85, 60:160] = 10.
+        maps[:, 2, 75:85, 60:160] = 0.
+        maps[:, 3, 75:85, 60:160] = 1.
+        maps[:, 4, 75:85, 60:160] = 10.
+        maps[:, 0:2, 150:152, 5:7] = 10.
+        self.pred_result1 = copy.deepcopy(maps)
+        # test decoding with small radius
+        maps.fill_(0.)
+        maps[:, 0:2, :, :] = -10.
+        maps[:, 0, 120:140, 20:40] = 10.
+        maps[:, 1, 120:140, 20:40] = 10.
+        maps[:, 2, 120:140, 20:40] = 0.
+        maps[:, 3, 120:140, 20:40] = 1.
+        maps[:, 4, 120:140, 20:40] = 0.5
+        self.pred_result2 = copy.deepcopy(maps)
+
+        self.data_sample = TextDetDataSample(
+            metainfo=dict(scale_factor=(0.5, 1)),
+            gt_instances=InstanceData(polygons=[
+                np.array([0, 0, 0, 1, 2, 1, 2, 0]),
+                np.array([1, 1, 1, 2, 3, 2, 3, 1])
+            ]))
+
+    @parameterized.expand([('poly')])
+    def test_get_text_instances(self, text_repr_type):
+        postprocessor = TextSnakePostprocessor(text_repr_type=text_repr_type)
+
+        results = postprocessor.get_text_instances(
+            torch.squeeze(self.pred_result1), self.data_sample)
+        self.assertEqual(len(results.pred_instances.polygons), 1)
+
+        results = postprocessor.get_text_instances(
+            torch.squeeze(self.pred_result2), self.data_sample)
+        self.assertEqual(len(results.pred_instances.polygons), 0)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textdet/test_wrappers/test_mmdet_wrapper.py b/mmocr-dev-1.x/tests/test_models/test_textdet/test_wrappers/test_mmdet_wrapper.py
new file mode 100644
index 0000000000000000000000000000000000000000..2114a2dd4bb550e66eb031c9a02904c5bff68405
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textdet/test_wrappers/test_mmdet_wrapper.py
@@ -0,0 +1,279 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+from mmdet.structures import DetDataSample
+from mmdet.testing import demo_mm_inputs
+from mmengine.config import Config
+from mmengine.registry import init_default_scope
+from mmengine.structures import InstanceData
+
+from mmocr.registry import MODELS
+from mmocr.structures import TextDetDataSample
+
+
+class TestMMDetWrapper(unittest.TestCase):
+
+    def setUp(self):
+        init_default_scope('mmocr')
+        model_cfg_fcos = dict(
+            type='MMDetWrapper',
+            cfg=dict(
+                type='FCOS',
+                data_preprocessor=dict(
+                    type='DetDataPreprocessor',
+                    mean=[102.9801, 115.9465, 122.7717],
+                    std=[1.0, 1.0, 1.0],
+                    bgr_to_rgb=False,
+                    pad_size_divisor=32),
+                backbone=dict(
+                    type='ResNet',
+                    depth=50,
+                    num_stages=4,
+                    out_indices=(0, 1, 2, 3),
+                    frozen_stages=1,
+                    norm_cfg=dict(type='BN', requires_grad=False),
+                    norm_eval=True,
+                    style='caffe',
+                    init_cfg=dict(
+                        type='Pretrained',
+                        checkpoint='open-mmlab://detectron/resnet50_caffe')),
+                neck=dict(
+                    type='FPN',
+                    in_channels=[256, 512, 1024, 2048],
+                    out_channels=256,
+                    start_level=1,
+                    add_extra_convs='on_output',  # use P5
+                    num_outs=5,
+                    relu_before_extra_convs=True),
+                bbox_head=dict(
+                    type='FCOSHead',
+                    num_classes=2,
+                    in_channels=256,
+                    stacked_convs=4,
+                    feat_channels=256,
+                    strides=[8, 16, 32, 64, 128],
+                    loss_cls=dict(
+                        type='FocalLoss',
+                        use_sigmoid=True,
+                        gamma=2.0,
+                        alpha=0.25,
+                        loss_weight=1.0),
+                    loss_bbox=dict(type='IoULoss', loss_weight=1.0),
+                    loss_centerness=dict(
+                        type='CrossEntropyLoss',
+                        use_sigmoid=True,
+                        loss_weight=1.0)),
+                # testing settings
+                test_cfg=dict(
+                    nms_pre=1000,
+                    min_bbox_size=0,
+                    score_thr=0.05,
+                    nms=dict(type='nms', iou_threshold=0.5),
+                    max_per_img=100)))
+        model_cfg_maskrcnn = dict(
+            type='MMDetWrapper',
+            text_repr_type='quad',
+            cfg=dict(
+                type='MaskRCNN',
+                data_preprocessor=dict(
+                    type='DetDataPreprocessor',
+                    mean=[123.675, 116.28, 103.53],
+                    std=[58.395, 57.12, 57.375],
+                    bgr_to_rgb=True,
+                    pad_size_divisor=32),
+                backbone=dict(
+                    type='ResNet',
+                    depth=50,
+                    num_stages=4,
+                    out_indices=(0, 1, 2, 3),
+                    frozen_stages=1,
+                    norm_cfg=dict(type='BN', requires_grad=True),
+                    norm_eval=True,
+                    style='pytorch',
+                    init_cfg=dict(
+                        type='Pretrained',
+                        checkpoint='torchvision://resnet50')),
+                neck=dict(
+                    type='FPN',
+                    in_channels=[256, 512, 1024, 2048],
+                    out_channels=256,
+                    num_outs=5),
+                rpn_head=dict(
+                    type='RPNHead',
+                    in_channels=256,
+                    feat_channels=256,
+                    anchor_generator=dict(
+                        type='AnchorGenerator',
+                        scales=[8],
+                        ratios=[0.5, 1.0, 2.0],
+                        strides=[4, 8, 16, 32, 64]),
+                    bbox_coder=dict(
+                        type='DeltaXYWHBBoxCoder',
+                        target_means=[.0, .0, .0, .0],
+                        target_stds=[1.0, 1.0, 1.0, 1.0]),
+                    loss_cls=dict(
+                        type='CrossEntropyLoss',
+                        use_sigmoid=True,
+                        loss_weight=1.0),
+                    loss_bbox=dict(type='L1Loss', loss_weight=1.0)),
+                roi_head=dict(
+                    type='StandardRoIHead',
+                    bbox_roi_extractor=dict(
+                        type='SingleRoIExtractor',
+                        roi_layer=dict(
+                            type='RoIAlign', output_size=7, sampling_ratio=0),
+                        out_channels=256,
+                        featmap_strides=[4, 8, 16, 32]),
+                    bbox_head=dict(
+                        type='Shared2FCBBoxHead',
+                        in_channels=256,
+                        fc_out_channels=1024,
+                        roi_feat_size=7,
+                        num_classes=80,
+                        bbox_coder=dict(
+                            type='DeltaXYWHBBoxCoder',
+                            target_means=[0., 0., 0., 0.],
+                            target_stds=[0.1, 0.1, 0.2, 0.2]),
+                        reg_class_agnostic=False,
+                        loss_cls=dict(
+                            type='CrossEntropyLoss',
+                            use_sigmoid=False,
+                            loss_weight=1.0),
+                        loss_bbox=dict(type='L1Loss', loss_weight=1.0)),
+                    mask_roi_extractor=dict(
+                        type='SingleRoIExtractor',
+                        roi_layer=dict(
+                            type='RoIAlign', output_size=14, sampling_ratio=0),
+                        out_channels=256,
+                        featmap_strides=[4, 8, 16, 32]),
+                    mask_head=dict(
+                        type='FCNMaskHead',
+                        num_convs=4,
+                        in_channels=256,
+                        conv_out_channels=256,
+                        num_classes=80,
+                        loss_mask=dict(
+                            type='CrossEntropyLoss',
+                            use_mask=True,
+                            loss_weight=1.0))),
+                # model training and testing settings
+                train_cfg=dict(
+                    rpn=dict(
+                        assigner=dict(
+                            type='MaxIoUAssigner',
+                            pos_iou_thr=0.7,
+                            neg_iou_thr=0.3,
+                            min_pos_iou=0.3,
+                            match_low_quality=True,
+                            ignore_iof_thr=-1),
+                        sampler=dict(
+                            type='RandomSampler',
+                            num=256,
+                            pos_fraction=0.5,
+                            neg_pos_ub=-1,
+                            add_gt_as_proposals=False),
+                        allowed_border=-1,
+                        pos_weight=-1,
+                        debug=False),
+                    rpn_proposal=dict(
+                        nms_pre=2000,
+                        max_per_img=1000,
+                        nms=dict(type='nms', iou_threshold=0.7),
+                        min_bbox_size=0),
+                    rcnn=dict(
+                        assigner=dict(
+                            type='MaxIoUAssigner',
+                            pos_iou_thr=0.5,
+                            neg_iou_thr=0.5,
+                            min_pos_iou=0.5,
+                            match_low_quality=True,
+                            ignore_iof_thr=-1),
+                        sampler=dict(
+                            type='RandomSampler',
+                            num=512,
+                            pos_fraction=0.25,
+                            neg_pos_ub=-1,
+                            add_gt_as_proposals=True),
+                        mask_size=28,
+                        pos_weight=-1,
+                        debug=False)),
+                test_cfg=dict(
+                    rpn=dict(
+                        nms_pre=1000,
+                        max_per_img=1000,
+                        nms=dict(type='nms', iou_threshold=0.7),
+                        min_bbox_size=0),
+                    rcnn=dict(
+                        score_thr=0.05,
+                        nms=dict(type='nms', iou_threshold=0.5),
+                        max_per_img=100,
+                        mask_thr_binary=0.5))))
+
+        self.FCOS = MODELS.build(Config(model_cfg_fcos))
+        self.MRCNN = MODELS.build(Config(model_cfg_maskrcnn))
+
+    def test_one_stage_wrapper(self):
+        packed_inputs = demo_mm_inputs(
+            2, [[3, 128, 128], [3, 128, 128]], num_classes=2)
+        # Test forward train
+        data = self.FCOS.data_preprocessor(packed_inputs, True)
+        bi, ds = data['inputs'], data['data_samples']
+        losses = self.FCOS.forward(bi, ds, mode='loss')
+        self.assertIsInstance(losses, dict)
+        # Test forward test
+        self.FCOS.eval()
+        ds = [
+            TextDetDataSample(metainfo=d.metainfo, **dict(d.items()))
+            for d in ds
+        ]
+        with torch.no_grad():
+            batch_results = self.FCOS.forward(bi, ds, mode='predict')
+            self.assertEqual(len(batch_results), 2)
+            self.assertIsInstance(batch_results[0], TextDetDataSample)
+
+    def test_mask_two_stage_wrapper(self):
+        packed_inputs = demo_mm_inputs(
+            2, [[3, 128, 128], [3, 128, 128]], num_classes=2, with_mask=True)
+        # Test forward train
+        data = self.MRCNN.data_preprocessor(packed_inputs, True)
+        bi, ds = data['inputs'], data['data_samples']
+        losses = self.MRCNN.forward(bi, ds, mode='loss')
+        assert isinstance(losses, dict)
+        # Test forward test
+        self.MRCNN.eval()
+        ds = [
+            TextDetDataSample(metainfo=d.metainfo, **dict(d.items()))
+            for d in ds
+        ]
+        with torch.no_grad():
+            batch_results = self.MRCNN.forward(bi, ds, mode='predict')
+            self.assertEqual(len(batch_results), 2)
+            self.assertIsInstance(batch_results[0], TextDetDataSample)
+
+    def test_adapt_predictions(self):
+        data_sample = DetDataSample
+        data = TextDetDataSample()
+
+        pred_instances = InstanceData()
+        pred_instances.scores = torch.randn(1)
+        pred_instances.labels = torch.Tensor([1])
+        pred_instances.bboxes = torch.Tensor([[0, 0, 2, 2]])
+        pred_instances.masks = torch.rand(1, 10, 10)
+        data_sample.pred_instances = pred_instances
+        results = self.MRCNN.adapt_predictions([data_sample], [data])
+        self.assertEqual(len(results), 1)
+        self.assertIsInstance(results[0], TextDetDataSample)
+        self.assertTrue('polygons' in results[0].pred_instances.keys())
+
+        data_sample = TextDetDataSample()
+        data = TextDetDataSample()
+        pred_instances = InstanceData()
+        pred_instances.scores = torch.randn(1)
+        pred_instances.labels = torch.Tensor([1])
+        pred_instances.bboxes = torch.Tensor([[0, 0, 2, 2]])
+        data_sample.pred_instances = pred_instances
+        results = self.FCOS.adapt_predictions([data_sample], [data])
+        self.assertEqual(len(results), 1)
+        self.assertIsInstance(results[0], TextDetDataSample)
+        self.assertTrue('polygons' in results[0].pred_instances.keys())
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_mini_vgg.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_mini_vgg.py
new file mode 100644
index 0000000000000000000000000000000000000000..bc8d188f94492140aa9bc85f4ce94001c7ca75f2
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_mini_vgg.py
@@ -0,0 +1,19 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.backbones import MiniVGG
+
+
+class TestMiniVGG(TestCase):
+
+    def test_forward(self):
+
+        model = MiniVGG()
+        model.init_weights()
+        model.train()
+
+        imgs = torch.randn(1, 3, 32, 160)
+        feats = model(imgs)
+        self.assertEqual(feats.shape, torch.Size([1, 512, 1, 41]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_mobilenet_v2.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_mobilenet_v2.py
new file mode 100644
index 0000000000000000000000000000000000000000..7f55ef44027dadc7c79f4957f5d97106ffde2491
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_mobilenet_v2.py
@@ -0,0 +1,17 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.backbones import MobileNetV2
+
+
+class TestMobileNetV2(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 3, 32, 160)
+
+    def test_mobilenetv2(self):
+        mobilenet_v2 = MobileNetV2()
+        self.assertEqual(
+            mobilenet_v2(self.img).shape, torch.Size([1, 1280, 1, 43]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_nrtr_modality_transformer.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_nrtr_modality_transformer.py
new file mode 100644
index 0000000000000000000000000000000000000000..3243cd40b000ddce1d43dffbee46146e20f15b36
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_nrtr_modality_transformer.py
@@ -0,0 +1,19 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textrecog.backbones import NRTRModalityTransform
+
+
+class TestNRTRBackbone(unittest.TestCase):
+
+    def setUp(self):
+        self.img = torch.randn(2, 3, 32, 100)
+
+    def test_encoder(self):
+        nrtr_backbone = NRTRModalityTransform()
+        nrtr_backbone.init_weights()
+        nrtr_backbone.train()
+        out_enc = nrtr_backbone(self.img)
+        self.assertEqual(out_enc.shape, torch.Size([2, 512, 1, 25]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet.py
new file mode 100644
index 0000000000000000000000000000000000000000..1a7904fbbdd0fea44d895546cf56ca429ee35ff1
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet.py
@@ -0,0 +1,104 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from mmengine.registry import init_default_scope
+
+from mmocr.models.textrecog.backbones import ResNet
+
+
+class TestResNet(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 3, 32, 100)
+        init_default_scope('mmocr')
+
+    def test_resnet45_aster(self):
+        resnet45_aster = ResNet(
+            in_channels=3,
+            stem_channels=[64, 128],
+            block_cfgs=dict(type='BasicBlock', use_conv1x1='True'),
+            arch_layers=[3, 4, 6, 6, 3],
+            arch_channels=[32, 64, 128, 256, 512],
+            strides=[(2, 2), (2, 2), (2, 1), (2, 1), (2, 1)])
+        self.assertEqual(
+            resnet45_aster(self.img).shape, torch.Size([1, 512, 1, 25]))
+
+    def test_resnet45_abi(self):
+        resnet45_abi = ResNet(
+            in_channels=3,
+            stem_channels=32,
+            block_cfgs=dict(type='BasicBlock', use_conv1x1='True'),
+            arch_layers=[3, 4, 6, 6, 3],
+            arch_channels=[32, 64, 128, 256, 512],
+            strides=[2, 1, 2, 1, 1])
+        self.assertEqual(
+            resnet45_abi(self.img).shape, torch.Size([1, 512, 8, 25]))
+
+    def test_resnet31_master(self):
+        resnet31_master = ResNet(
+            in_channels=3,
+            stem_channels=[64, 128],
+            block_cfgs=dict(type='BasicBlock'),
+            arch_layers=[1, 2, 5, 3],
+            arch_channels=[256, 256, 512, 512],
+            strides=[1, 1, 1, 1],
+            plugins=[
+                dict(
+                    cfg=dict(type='Maxpool2d', kernel_size=2, stride=(2, 2)),
+                    stages=(True, True, False, False),
+                    position='before_stage'),
+                dict(
+                    cfg=dict(
+                        type='Maxpool2d', kernel_size=(2, 1), stride=(2, 1)),
+                    stages=(False, False, True, False),
+                    position='before_stage'),
+                dict(
+                    cfg=dict(type='GCAModule', ratio=0.0625, n_head=1),
+                    stages=[True, True, True, True],
+                    position='after_stage'),
+                dict(
+                    cfg=dict(
+                        type='ConvModule',
+                        kernel_size=3,
+                        stride=1,
+                        padding=1,
+                        norm_cfg=dict(type='BN'),
+                        act_cfg=dict(type='ReLU')),
+                    stages=(True, True, True, True),
+                    position='after_stage')
+            ])
+        self.assertEqual(
+            resnet31_master(self.img).shape, torch.Size([1, 512, 4, 25]))
+
+    def test_resnet31(self):
+        resnet_31 = ResNet(
+            in_channels=3,
+            stem_channels=[64, 128],
+            block_cfgs=dict(type='BasicBlock'),
+            arch_layers=[1, 2, 5, 3],
+            arch_channels=[256, 256, 512, 512],
+            strides=[1, 1, 1, 1],
+            plugins=[
+                dict(
+                    cfg=dict(type='Maxpool2d', kernel_size=2, stride=(2, 2)),
+                    stages=(True, True, False, False),
+                    position='before_stage'),
+                dict(
+                    cfg=dict(
+                        type='Maxpool2d', kernel_size=(2, 1), stride=(2, 1)),
+                    stages=(False, False, True, False),
+                    position='before_stage'),
+                dict(
+                    cfg=dict(
+                        type='ConvModule',
+                        kernel_size=3,
+                        stride=1,
+                        padding=1,
+                        norm_cfg=dict(type='BN'),
+                        act_cfg=dict(type='ReLU')),
+                    stages=(True, True, True, True),
+                    position='after_stage')
+            ])
+        self.assertEqual(
+            resnet_31(self.img).shape, torch.Size([1, 512, 4, 25]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet31_ocr.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet31_ocr.py
new file mode 100644
index 0000000000000000000000000000000000000000..a6bc566cc1be959194d776eb83411a5f9a4e115b
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet31_ocr.py
@@ -0,0 +1,29 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.backbones import ResNet31OCR
+
+
+class TestResNet31OCR(TestCase):
+
+    def test_forward(self):
+        """Test resnet backbone."""
+        with self.assertRaises(AssertionError):
+            ResNet31OCR(2.5)
+
+        with self.assertRaises(AssertionError):
+            ResNet31OCR(3, layers=5)
+
+        with self.assertRaises(AssertionError):
+            ResNet31OCR(3, channels=5)
+
+        # Test ResNet18 forward
+        model = ResNet31OCR()
+        model.init_weights()
+        model.train()
+
+        imgs = torch.randn(1, 3, 32, 160)
+        feat = model(imgs)
+        self.assertEqual(feat.shape, torch.Size([1, 512, 4, 40]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet_abi.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet_abi.py
new file mode 100644
index 0000000000000000000000000000000000000000..950e9a8a726bb8cc6c545d75802e6c79396a9614
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_resnet_abi.py
@@ -0,0 +1,31 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.backbones import ResNetABI
+
+
+class TestResNetABI(TestCase):
+
+    def test_forward(self):
+        """Test resnet backbone."""
+        with self.assertRaises(AssertionError):
+            ResNetABI(2.5)
+
+        with self.assertRaises(AssertionError):
+            ResNetABI(3, arch_settings=5)
+
+        with self.assertRaises(AssertionError):
+            ResNetABI(3, stem_channels=None)
+
+        with self.assertRaises(AssertionError):
+            ResNetABI(arch_settings=[3, 4, 6, 6], strides=[1, 2, 1, 2, 1])
+
+        # Test forwarding
+        model = ResNetABI()
+        model.train()
+
+        imgs = torch.randn(1, 3, 32, 160)
+        feat = model(imgs)
+        self.assertEqual(feat.shape, torch.Size([1, 512, 8, 40]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_shallow_cnn.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_shallow_cnn.py
new file mode 100644
index 0000000000000000000000000000000000000000..2d90bbc0dfb3bf26614032dce0ac047315b61cf8
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_backbones/test_shallow_cnn.py
@@ -0,0 +1,21 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textrecog.backbones import ShallowCNN
+
+
+class TestShallowCNN(unittest.TestCase):
+
+    def setUp(self):
+        self.imgs = torch.randn(1, 1, 32, 100)
+
+    def test_shallow_cnn(self):
+
+        model = ShallowCNN()
+        model.init_weights()
+        model.train()
+
+        feat = model(self.imgs)
+        self.assertEqual(feat.shape, torch.Size([1, 512, 8, 25]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_data_preprocessors/test_data_preprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_data_preprocessors/test_data_preprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..2216aba005d96d09304e349e8bb51e6d71d437a9
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_data_preprocessors/test_data_preprocessor.py
@@ -0,0 +1,113 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.data_preprocessors import TextRecogDataPreprocessor
+from mmocr.registry import MODELS
+from mmocr.structures import TextRecogDataSample
+
+
+@MODELS.register_module()
+class Augment(torch.nn.Module):
+
+    def forward(self, inputs, data_samples):
+        return inputs, data_samples
+
+
+class TestTextRecogDataPreprocessor(TestCase):
+
+    def test_init(self):
+        # test mean is None
+        processor = TextRecogDataPreprocessor()
+        self.assertTrue(not hasattr(processor, 'mean'))
+        self.assertTrue(processor._enable_normalize is False)
+
+        # test mean is not None
+        processor = TextRecogDataPreprocessor(mean=[0, 0, 0], std=[1, 1, 1])
+        self.assertTrue(hasattr(processor, 'mean'))
+        self.assertTrue(hasattr(processor, 'std'))
+        self.assertTrue(processor._enable_normalize)
+
+        # please specify both mean and std
+        with self.assertRaises(AssertionError):
+            TextRecogDataPreprocessor(mean=[0, 0, 0])
+
+        # bgr2rgb and rgb2bgr cannot be set to True at the same time
+        with self.assertRaises(AssertionError):
+            TextRecogDataPreprocessor(bgr_to_rgb=True, rgb_to_bgr=True)
+
+        aug_cfg = [dict(type='Augment')]
+        processor = TextRecogDataPreprocessor()
+        self.assertIsNone(processor.batch_augments)
+        processor = TextRecogDataPreprocessor(batch_augments=aug_cfg)
+        self.assertIsInstance(processor.batch_augments, torch.nn.ModuleList)
+        self.assertIsInstance(processor.batch_augments[0], Augment)
+
+    def test_forward(self):
+        processor = TextRecogDataPreprocessor(mean=[0, 0, 0], std=[1, 1, 1])
+
+        data = {
+            'inputs': [
+                torch.randint(0, 256, (3, 11, 10)),
+            ],
+            'data_samples': [
+                TextRecogDataSample(
+                    metainfo=dict(img_shape=(11, 10), valid_ratio=1.0)),
+            ]
+        }
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        print(inputs.dtype)
+        self.assertEqual(inputs.shape, (1, 3, 11, 10))
+        self.assertEqual(len(data_samples), 1)
+
+        # test channel_conversion
+        processor = TextRecogDataPreprocessor(
+            mean=[0., 0., 0.], std=[1., 1., 1.], bgr_to_rgb=True)
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        self.assertEqual(inputs.shape, (1, 3, 11, 10))
+        self.assertEqual(len(data_samples), 1)
+
+        # test padding
+        data = {
+            'inputs': [
+                torch.randint(0, 256, (3, 10, 11)),
+                torch.randint(0, 256, (3, 9, 14))
+            ]
+        }
+        processor = TextRecogDataPreprocessor(
+            mean=[0., 0., 0.], std=[1., 1., 1.], bgr_to_rgb=True)
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        self.assertEqual(inputs.shape, (2, 3, 10, 14))
+        self.assertIsNone(data_samples)
+
+        # test pad_size_divisor
+        data = {
+            'inputs': [
+                torch.randint(0, 256, (3, 10, 11)),
+                torch.randint(0, 256, (3, 9, 24)),
+            ],
+            'data_samples': [
+                TextRecogDataSample(
+                    metainfo=dict(img_shape=(10, 11), valid_ratio=1.0)),
+                TextRecogDataSample(
+                    metainfo=dict(img_shape=(9, 24), valid_ratio=1.0))
+            ]
+        }
+        aug_cfg = [dict(type='Augment')]
+        processor = TextRecogDataPreprocessor(
+            mean=[0., 0., 0.],
+            std=[1., 1., 1.],
+            pad_size_divisor=5,
+            batch_augments=aug_cfg)
+        out = processor(data)
+        inputs, data_samples = out['inputs'], out['data_samples']
+        self.assertEqual(inputs.shape, (2, 3, 10, 25))
+        self.assertEqual(len(data_samples), 2)
+        for data_sample, expected_shape, expected_ratio in zip(
+                data_samples, [(10, 25), (10, 25)], [11 / 25., 24 / 25.]):
+            self.assertEqual(data_sample.batch_input_shape, expected_shape)
+            self.assertEqual(data_sample.valid_ratio, expected_ratio)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_fuser.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_fuser.py
new file mode 100644
index 0000000000000000000000000000000000000000..208d863780f5a49364b619651f692bfadbe1139e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_fuser.py
@@ -0,0 +1,121 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.decoders import ABIFuser
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestABINetFuser(TestCase):
+
+    def setUp(self):
+
+        self.tmp_dir = tempfile.TemporaryDirectory()
+        self.dict_file = osp.join(self.tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(self.dict_file)
+        self.dict_cfg = dict(
+            type='Dictionary',
+            dict_file=self.dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=False,
+            with_unknown=False)
+
+        # both max_seq_len has been set
+        with self.assertWarns(Warning):
+            ABIFuser(
+                self.dict_cfg,
+                max_seq_len=10,
+                vision_decoder=dict(
+                    type='ABIVisionDecoder',
+                    in_channels=2,
+                    num_channels=2,
+                    max_seq_len=5),
+                language_decoder=dict(
+                    type='ABILanguageDecoder',
+                    d_model=2,
+                    n_head=2,
+                    d_inner=16,
+                    n_layers=1,
+                    max_seq_len=5))
+
+        # both dictionaries have been set
+        with self.assertWarns(Warning):
+            ABIFuser(
+                self.dict_cfg,
+                max_seq_len=10,
+                vision_decoder=dict(
+                    type='ABIVisionDecoder',
+                    in_channels=2,
+                    num_channels=2,
+                    dictionary=self.dict_cfg),
+                language_decoder=dict(
+                    type='ABILanguageDecoder',
+                    d_model=2,
+                    n_head=2,
+                    d_inner=16,
+                    n_layers=1,
+                    dictionary=self.dict_cfg))
+
+    def tearDown(self):
+        self.tmp_dir.cleanup()
+
+    def test_init(self):
+        # No ending idx
+        with self.assertRaises(AssertionError):
+            dict_cfg = dict(
+                type='Dictionary', dict_file=self.dict_file, with_end=False)
+            ABIFuser(dict_cfg, None)
+
+    def test_forward_full_model(self):
+        # Full model
+        model = ABIFuser(
+            self.dict_cfg,
+            max_seq_len=10,
+            vision_decoder=dict(
+                type='ABIVisionDecoder', in_channels=2, num_channels=2),
+            language_decoder=dict(
+                type='ABILanguageDecoder',
+                d_model=2,
+                n_head=2,
+                d_inner=16,
+                n_layers=1,
+            ),
+            d_model=2)
+        model.train()
+        result = model(None, torch.randn(1, 2, 8, 32))
+        self.assertIsInstance(result, dict)
+        self.assertIn('out_vis', result)
+        self.assertIn('out_langs', result)
+        self.assertIsInstance(result['out_langs'], list)
+        self.assertIn('out_fusers', result)
+        self.assertIsInstance(result['out_fusers'], list)
+
+        model.eval()
+        result = model(None, torch.randn(1, 2, 8, 32))
+        self.assertIsInstance(result, torch.Tensor)
+
+    def test_forward_vision_model(self):
+        # Full model
+        model = ABIFuser(
+            self.dict_cfg,
+            vision_decoder=dict(
+                type='ABIVisionDecoder', in_channels=2, num_channels=2))
+        model.train()
+        result = model(None, torch.randn(1, 2, 8, 32))
+        self.assertIsInstance(result, dict)
+        self.assertIn('out_vis', result)
+        self.assertIn('out_langs', result)
+        self.assertIsInstance(result['out_langs'], list)
+        self.assertEqual(len(result['out_langs']), 0)
+        self.assertIn('out_fusers', result)
+        self.assertIsInstance(result['out_fusers'], list)
+        self.assertEqual(len(result['out_fusers']), 0)
+
+        model.eval()
+        result = model(None, torch.randn(1, 2, 8, 32))
+        self.assertIsInstance(result, torch.Tensor)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_language_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_language_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..73efb164ff74a6f3b9b0a89bc17a1fed0d9cfed2
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_language_decoder.py
@@ -0,0 +1,58 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.decoders import ABILanguageDecoder
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestABILanguageDecoder(TestCase):
+
+    def test_init(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            dict_cfg = dict(
+                type='Dictionary', dict_file=dict_file, with_end=False)
+            # No padding token
+            with self.assertRaises(AssertionError):
+                ABILanguageDecoder(dict_cfg)
+
+    def test_forward(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            # test diction cfg
+            dict_cfg = dict(
+                type='Dictionary',
+                dict_file=dict_file,
+                with_start=True,
+                with_end=True,
+                same_start_end=False,
+                with_padding=True,
+                with_unknown=False)
+            decoder = ABILanguageDecoder(
+                dict_cfg, d_model=16, d_inner=16, max_seq_len=10)
+            logits = torch.randn(2, 10, 39)
+            result = decoder.forward_train(None, logits, None)
+            self.assertIn('feature', result)
+            self.assertIn('logits', result)
+            self.assertEqual(result['feature'].shape, torch.Size([2, 10, 16]))
+            self.assertEqual(result['logits'].shape, torch.Size([2, 10, 39]))
+
+            decoder = ABILanguageDecoder(
+                dict_cfg,
+                d_model=16,
+                d_inner=16,
+                max_seq_len=10,
+                with_self_attn=True,
+                detach_tokens=False)
+            logits = torch.randn(2, 10, 39)
+            result = decoder.forward_test(None, logits, None)
+            self.assertIn('feature', result)
+            self.assertIn('logits', result)
+            self.assertEqual(result['feature'].shape, torch.Size([2, 10, 16]))
+            self.assertEqual(result['logits'].shape, torch.Size([2, 10, 39]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_vision_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_vision_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..db94ce86f63471e031590ca383c490ccbc9e42f4
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_abi_vision_decoder.py
@@ -0,0 +1,50 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.decoders import ABIVisionDecoder
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestABIVisionDecoder(TestCase):
+
+    def test_forward(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            # test diction cfg
+            dict_cfg = dict(
+                type='Dictionary',
+                dict_file=dict_file,
+                with_start=True,
+                with_end=True,
+                same_start_end=False,
+                with_padding=False,
+                with_unknown=False)
+
+            decoder = ABIVisionDecoder(
+                dict_cfg, in_channels=32, num_channels=16, max_seq_len=10)
+
+            # training
+            out_enc = torch.randn(2, 32, 8, 32)
+            result = decoder.forward_train(None, out_enc)
+            self.assertIn('feature', result)
+            self.assertIn('logits', result)
+            self.assertIn('attn_scores', result)
+            self.assertEqual(result['feature'].shape, torch.Size([2, 10, 32]))
+            self.assertEqual(result['logits'].shape, torch.Size([2, 10, 38]))
+            self.assertEqual(result['attn_scores'].shape,
+                             torch.Size([2, 10, 8, 32]))
+
+            # testing
+            result = decoder.forward_test(None, out_enc)
+            self.assertIn('feature', result)
+            self.assertIn('logits', result)
+            self.assertIn('attn_scores', result)
+            self.assertEqual(result['feature'].shape, torch.Size([2, 10, 32]))
+            self.assertEqual(result['logits'].shape, torch.Size([2, 10, 38]))
+            self.assertEqual(result['attn_scores'].shape,
+                             torch.Size([2, 10, 8, 32]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_aster_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_aster_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..0517b1492e6b93565cd4217919e5948d9d781b01
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_aster_decoder.py
@@ -0,0 +1,100 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders import ASTERDecoder
+from mmocr.structures import TextRecogDataSample
+
+
+class TestASTERDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World1'
+        gt_text_sample2.gt_text = gt_text
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+
+    def _create_dummy_dict_file(
+        self, dict_file,
+        chars=list('0123456789abcdefghijklmnopqrstuvwxyz')):  # NOQA
+        with open(dict_file, 'w') as f:
+            for char in chars:
+                f.write(char + '\n')
+
+    def test_init(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        self._create_dummy_dict_file(dict_file)
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        ASTERDecoder(
+            in_channels=512, dictionary=dict_cfg, module_loss=loss_cfg)
+        tmp_dir.cleanup()
+
+    def test_forward_train(self):
+        encoder_out = torch.randn(2, 25, 512)
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        self._create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = ASTERDecoder(
+            in_channels=512,
+            dictionary=dict_cfg,
+            module_loss=loss_cfg,
+            max_seq_len=25)
+        data_samples = decoder.module_loss.get_targets(self.data_info)
+        output = decoder.forward_train(
+            out_enc=encoder_out, data_samples=data_samples)
+        self.assertTupleEqual(tuple(output.shape), (2, 25, 39))
+
+    def test_forward_test(self):
+        encoder_out = torch.randn(2, 25, 512)
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        self._create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = ASTERDecoder(
+            in_channels=512,
+            dictionary=dict_cfg,
+            module_loss=loss_cfg,
+            max_seq_len=25)
+        output = decoder.forward_test(
+            out_enc=encoder_out, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 25, 39))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_base_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_base_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..30854666a3b9dd5fe904f924f16ec97b54c5a464
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_base_decoder.py
@@ -0,0 +1,135 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase, mock
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.decoders import BaseDecoder
+from mmocr.registry import MODELS, TASK_UTILS
+from mmocr.testing import create_dummy_dict_file
+
+
+@MODELS.register_module()
+class Tmp:
+
+    def __init__(self, max_seq_len, dictionary) -> None:
+        pass
+
+    def get_targets(self, datasamples):
+        return None
+
+    def __call__(self, *args):
+        return None
+
+
+class TestBaseDecoder(TestCase):
+
+    def test_init(self):
+        cfg = dict(type='Tmp')
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        with self.assertRaises(AssertionError):
+            BaseDecoder(dict_cfg, [], cfg)
+        with self.assertRaises(AssertionError):
+            BaseDecoder(dict_cfg, cfg, [])
+        with self.assertRaises(TypeError):
+            BaseDecoder([], cfg, cfg)
+        decoder = BaseDecoder(dictionary=dict_cfg)
+        self.assertIsNone(decoder.module_loss)
+        self.assertIsNone(decoder.postprocessor)
+        self.assertIsInstance(decoder.dictionary, Dictionary)
+        decoder = BaseDecoder(dict_cfg, cfg, cfg)
+        self.assertIsInstance(decoder.module_loss, Tmp)
+        self.assertIsInstance(decoder.postprocessor, Tmp)
+        dictionary = TASK_UTILS.build(dict_cfg)
+        decoder = BaseDecoder(dictionary, cfg, cfg)
+        self.assertIsInstance(decoder.dictionary, Dictionary)
+        tmp_dir.cleanup()
+
+    def test_forward_train(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        decoder = BaseDecoder(dictionary=dict_cfg)
+        with self.assertRaises(NotImplementedError):
+            decoder.forward_train(None, None, None)
+        tmp_dir.cleanup()
+
+    def test_forward_test(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        decoder = BaseDecoder(dictionary=dict_cfg)
+        with self.assertRaises(NotImplementedError):
+            decoder.forward_test(None, None, None)
+        tmp_dir.cleanup()
+
+    @mock.patch(f'{__name__}.BaseDecoder.forward_test')
+    @mock.patch(f'{__name__}.BaseDecoder.forward_train')
+    def test_forward(self, mock_forward_train, mock_forward_test):
+
+        def mock_func_train(feat, out_enc, datasamples):
+
+            return True
+
+        def mock_func_test(feat, out_enc, datasamples):
+
+            return False
+
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        mock_forward_train.side_effect = mock_func_train
+        mock_forward_test.side_effect = mock_func_test
+        cfg = dict(type='Tmp')
+        decoder = BaseDecoder(dict_cfg, cfg, cfg)
+        # test loss
+        loss = decoder.loss(None, None, None)
+        self.assertIsNone(loss)
+
+        # test predict
+        predict = decoder.predict(None, None, None)
+        self.assertIsNone(predict)
+
+        # test forward
+        tensor = decoder(None, None, None)
+        self.assertTrue(tensor)
+        decoder.eval()
+        tensor = decoder(None, None, None)
+        self.assertFalse(tensor)
+        tmp_dir.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_crnn_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_crnn_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..37149594b1169e4863c63d9d6ac585844f5ea8db
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_crnn_decoder.py
@@ -0,0 +1,56 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+import torch.nn as nn
+
+from mmocr.models.textrecog.decoders import CRNNDecoder
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestCRNNDecoder(TestCase):
+
+    def test_init(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            # test diction cfg
+            dict_cfg = dict(
+                type='Dictionary',
+                dict_file=dict_file,
+                with_start=True,
+                with_end=True,
+                same_start_end=False,
+                with_padding=True,
+                with_unknown=True)
+            # test rnn flag false
+            decoder = CRNNDecoder(in_channels=3, dictionary=dict_cfg)
+            self.assertIsInstance(decoder.decoder, nn.Conv2d)
+
+            decoder = CRNNDecoder(
+                in_channels=3, dictionary=dict_cfg, rnn_flag=True)
+            self.assertIsInstance(decoder.decoder, nn.Sequential)
+
+    def test_forward(self):
+        inputs = torch.randn(3, 10, 1, 100)
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            # test diction cfg
+            dict_cfg = dict(
+                type='Dictionary',
+                dict_file=dict_file,
+                with_start=False,
+                with_end=False,
+                same_start_end=False,
+                with_padding=True,
+                with_unknown=False)
+            decoder = CRNNDecoder(in_channels=10, dictionary=dict_cfg)
+            output = decoder.forward_train(inputs)
+            self.assertTupleEqual(tuple(output.shape), (3, 100, 37))
+            decoder = CRNNDecoder(
+                in_channels=10, dictionary=dict_cfg, rnn_flag=True)
+            output = decoder.forward_test(inputs)
+            self.assertTupleEqual(tuple(output.shape), (3, 100, 37))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_master_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_master_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..77400955bac674011c89c48d96d98879341af3cf
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_master_decoder.py
@@ -0,0 +1,87 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders import MasterDecoder
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestMasterDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World1'
+        gt_text_sample2.gt_text = gt_text
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+
+    def test_init(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        MasterDecoder(dictionary=dict_cfg, module_loss=loss_cfg)
+        tmp_dir.cleanup()
+
+    def test_forward_train(self):
+        encoder_out = torch.randn(2, 512, 6, 40)
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = MasterDecoder(
+            dictionary=dict_cfg, module_loss=loss_cfg, max_seq_len=30)
+        data_samples = decoder.module_loss.get_targets(self.data_info)
+        output = decoder.forward_train(
+            feat=encoder_out, data_samples=data_samples)
+        self.assertTupleEqual(tuple(output.shape), (2, 30, 39))
+
+    def test_forward_test(self):
+        encoder_out = torch.randn(2, 512, 6, 40)
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = MasterDecoder(
+            dictionary=dict_cfg, module_loss=loss_cfg, max_seq_len=30)
+        output = decoder.forward_test(
+            feat=encoder_out, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 30, 39))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_nrtr_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_nrtr_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..d4675a5dce48666a26da28ebd491f45bafd1b658
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_nrtr_decoder.py
@@ -0,0 +1,90 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders import NRTRDecoder
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestNRTRDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World'
+        gt_text_sample2.gt_text = gt_text
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+
+    def test_init(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        NRTRDecoder(dictionary=dict_cfg, module_loss=loss_cfg)
+        tmp_dir.cleanup()
+
+    def test_forward_train(self):
+        encoder_out = torch.randn(2, 25, 512)
+        tmp_dir = tempfile.TemporaryDirectory()
+        max_seq_len = 40
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = NRTRDecoder(
+            dictionary=dict_cfg, module_loss=loss_cfg, max_seq_len=max_seq_len)
+        data_samples = decoder.module_loss.get_targets(self.data_info)
+        output = decoder.forward_train(
+            out_enc=encoder_out, data_samples=data_samples)
+        self.assertTupleEqual(tuple(output.shape), (2, max_seq_len, 39))
+
+    def test_forward_test(self):
+        encoder_out = torch.randn(2, 25, 512)
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = NRTRDecoder(
+            dictionary=dict_cfg, module_loss=loss_cfg, max_seq_len=40)
+        output = decoder.forward_test(
+            out_enc=encoder_out, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 39))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_position_attention_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_position_attention_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..490126363d2ce5a647e6e6f0a0e2fcb01057adbe
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_position_attention_decoder.py
@@ -0,0 +1,78 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders import PositionAttentionDecoder
+from mmocr.structures import TextRecogDataSample
+
+
+class TestPositionAttentionDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World'
+        gt_text_sample2.gt_text = gt_text
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+        self.dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+
+    def test_init(self):
+
+        module_loss_cfg = dict(type='CEModuleLoss')
+        decoder = PositionAttentionDecoder(
+            dictionary=self.dict_cfg,
+            module_loss=module_loss_cfg,
+            return_feature=False)
+        self.assertIsInstance(decoder.prediction, torch.nn.Linear)
+
+    def test_forward_train(self):
+        feat = torch.randn(2, 512, 8, 8)
+        encoder_out = torch.randn(2, 128, 8, 8)
+        module_loss_cfg = dict(type='CEModuleLoss')
+        decoder = PositionAttentionDecoder(
+            dictionary=self.dict_cfg,
+            module_loss=module_loss_cfg,
+            return_feature=False)
+        output = decoder.forward_train(
+            feat=feat, out_enc=encoder_out, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 39))
+
+        decoder = PositionAttentionDecoder(
+            dictionary=self.dict_cfg, module_loss=module_loss_cfg)
+        output = decoder.forward_train(
+            feat=feat, out_enc=encoder_out, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 512))
+
+        feat_new = torch.randn(2, 256, 8, 8)
+        with self.assertRaises(AssertionError):
+            decoder.forward_train(feat_new, encoder_out, self.data_info)
+        encoder_out_new = torch.randn(2, 256, 8, 8)
+        with self.assertRaises(AssertionError):
+            decoder.forward_train(feat, encoder_out_new, self.data_info)
+
+    def test_forward_test(self):
+        feat = torch.randn(2, 512, 8, 8)
+        encoder_out = torch.randn(2, 128, 8, 8)
+        module_loss_cfg = dict(type='CEModuleLoss')
+        decoder = PositionAttentionDecoder(
+            dictionary=self.dict_cfg, module_loss=module_loss_cfg)
+        output = decoder.forward_test(feat, encoder_out, self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 512))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_robust_scanner_fuser.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_robust_scanner_fuser.py
new file mode 100644
index 0000000000000000000000000000000000000000..b3b140bcf1f0404d0038b4f34338c009c35a3033
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_robust_scanner_fuser.py
@@ -0,0 +1,88 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders import (PositionAttentionDecoder,
+                                             RobustScannerFuser,
+                                             SequenceAttentionDecoder)
+from mmocr.structures import TextRecogDataSample
+
+
+class TestRobustScannerFuser(TestCase):
+
+    def setUp(self) -> None:
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World'
+        gt_text_sample2.gt_text = gt_text
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+        self.dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+
+        self.loss_cfg = dict(type='CEModuleLoss')
+        hybrid_decoder = dict(type='SequenceAttentionDecoder')
+        position_decoder = dict(type='PositionAttentionDecoder')
+        self.decoder = RobustScannerFuser(
+            dictionary=self.dict_cfg,
+            module_loss=self.loss_cfg,
+            hybrid_decoder=hybrid_decoder,
+            position_decoder=position_decoder,
+            max_seq_len=40)
+
+    def test_init(self):
+
+        self.assertIsInstance(self.decoder.hybrid_decoder,
+                              SequenceAttentionDecoder)
+        self.assertIsInstance(self.decoder.position_decoder,
+                              PositionAttentionDecoder)
+        hybrid_decoder = dict(type='SequenceAttentionDecoder', max_seq_len=40)
+        position_decoder = dict(type='PositionAttentionDecoder')
+        with self.assertWarns(Warning):
+            RobustScannerFuser(
+                dictionary=self.dict_cfg,
+                module_loss=self.loss_cfg,
+                hybrid_decoder=hybrid_decoder,
+                position_decoder=position_decoder,
+                max_seq_len=40)
+        hybrid_decoder = dict(
+            type='SequenceAttentionDecoder', dictionary=self.dict_cfg)
+        with self.assertWarns(Warning):
+            RobustScannerFuser(
+                dictionary=self.dict_cfg,
+                module_loss=self.loss_cfg,
+                hybrid_decoder=hybrid_decoder,
+                position_decoder=position_decoder,
+                max_seq_len=40)
+
+    def test_forward_train(self):
+        feat = torch.randn(2, 512, 8, 8)
+        encoder_out = torch.randn(2, 128, 8, 8)
+        self.decoder.train()
+        output = self.decoder(
+            feat=feat, out_enc=encoder_out, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 39))
+
+    def test_forward_test(self):
+        feat = torch.randn(2, 512, 8, 8)
+        encoder_out = torch.randn(2, 128, 8, 8)
+        self.decoder.eval()
+        output = self.decoder(
+            feat=feat, out_enc=encoder_out, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 39))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_sar_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_sar_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..f6c4d3618a720c833ade5bee7e1c4f5bc44e4393
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_sar_decoder.py
@@ -0,0 +1,130 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders import (ParallelSARDecoder,
+                                             SequentialSARDecoder)
+from mmocr.structures import TextRecogDataSample
+
+
+class TestParallelSARDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World'
+        gt_text_sample2.gt_text = gt_text
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+        self.dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        self.max_seq_len = 40
+
+    def test_init(self):
+        decoder = ParallelSARDecoder(self.dict_cfg)
+        self.assertIsInstance(decoder.rnn_decoder, torch.nn.LSTM)
+        decoder = ParallelSARDecoder(
+            self.dict_cfg, dec_gru=True, pred_concat=True)
+        self.assertIsInstance(decoder.rnn_decoder, torch.nn.GRU)
+
+    def test_forward_train(self):
+        # test parallel sar decoder
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = ParallelSARDecoder(
+            self.dict_cfg, module_loss=loss_cfg, max_seq_len=self.max_seq_len)
+        decoder.init_weights()
+        decoder.train()
+        feat = torch.rand(2, 512, 4, self.max_seq_len)
+        out_enc = torch.rand(2, 512)
+        data_samples = decoder.module_loss.get_targets(self.data_info)
+        decoder.train_mode = True
+        out_train = decoder.forward_train(
+            feat, out_enc, data_samples=data_samples)
+        self.assertEqual(out_train.shape, torch.Size([2, self.max_seq_len,
+                                                      39]))
+
+    def test_forward_test(self):
+        decoder = ParallelSARDecoder(
+            self.dict_cfg, max_seq_len=self.max_seq_len)
+        feat = torch.rand(2, 512, 4, self.max_seq_len)
+        out_enc = torch.rand(2, 512)
+        decoder.train_mode = False
+        out_test = decoder.forward_test(feat, out_enc, self.data_info)
+        assert out_test.shape == torch.Size([2, self.max_seq_len, 39])
+        out_test = decoder.forward_test(feat, out_enc, None)
+        assert out_test.shape == torch.Size([2, self.max_seq_len, 39])
+
+
+class TestSequentialSARDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World'
+        gt_text_sample2.gt_text = gt_text
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+        self.dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+
+    def test_init(self):
+        decoder = SequentialSARDecoder(self.dict_cfg)
+        self.assertIsInstance(decoder.rnn_decoder_layer1, torch.nn.LSTMCell)
+        decoder = SequentialSARDecoder(
+            self.dict_cfg, dec_gru=True, pred_concat=True)
+        self.assertIsInstance(decoder.rnn_decoder_layer1, torch.nn.GRUCell)
+
+    def test_forward_train(self):
+        # test parallel sar decoder
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = SequentialSARDecoder(self.dict_cfg, module_loss=loss_cfg)
+        decoder.init_weights()
+        decoder.train()
+        feat = torch.rand(2, 512, 4, 40)
+        out_enc = torch.rand(2, 512)
+        data_samples = decoder.module_loss.get_targets(self.data_info)
+        out_train = decoder.forward_train(feat, out_enc, data_samples)
+        self.assertEqual(out_train.shape, torch.Size([2, 40, 39]))
+
+    def test_forward_test(self):
+        # test parallel sar decoder
+        loss_cfg = dict(type='CEModuleLoss')
+        decoder = SequentialSARDecoder(self.dict_cfg, module_loss=loss_cfg)
+        decoder.init_weights()
+        decoder.train()
+        feat = torch.rand(2, 512, 4, 40)
+        out_enc = torch.rand(2, 512)
+        out_test = decoder.forward_test(feat, out_enc, self.data_info)
+        self.assertEqual(out_test.shape, torch.Size([2, 40, 39]))
+        out_test = decoder.forward_test(feat, out_enc, None)
+        self.assertEqual(out_test.shape, torch.Size([2, 40, 39]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_sequence_attention_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_sequence_attention_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..909840e674121d0627104c8a8c86c279363a2641
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_sequence_attention_decoder.py
@@ -0,0 +1,81 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders import SequenceAttentionDecoder
+from mmocr.structures import TextRecogDataSample
+
+
+class TestSequenceAttentionDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World'
+        gt_text_sample2.gt_text = gt_text
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+        self.dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+
+    def test_init(self):
+
+        module_loss_cfg = dict(type='CEModuleLoss')
+        decoder = SequenceAttentionDecoder(
+            dictionary=self.dict_cfg,
+            module_loss=module_loss_cfg,
+            return_feature=False)
+        self.assertIsInstance(decoder.prediction, torch.nn.Linear)
+
+    def test_forward_train(self):
+        feat = torch.randn(2, 512, 8, 8)
+        encoder_out = torch.randn(2, 128, 8, 8)
+        module_loss_cfg = dict(type='CEModuleLoss')
+        decoder = SequenceAttentionDecoder(
+            dictionary=self.dict_cfg,
+            module_loss=module_loss_cfg,
+            return_feature=False)
+        data_samples = decoder.module_loss.get_targets(self.data_info)
+        output = decoder.forward_train(
+            feat=feat, out_enc=encoder_out, data_samples=data_samples)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 39))
+
+        decoder = SequenceAttentionDecoder(
+            dictionary=self.dict_cfg, module_loss=module_loss_cfg)
+        output = decoder.forward_train(
+            feat=feat, out_enc=encoder_out, data_samples=data_samples)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 512))
+
+        feat_new = torch.randn(2, 256, 8, 8)
+        with self.assertRaises(AssertionError):
+            decoder.forward_train(feat_new, encoder_out, self.data_info)
+        encoder_out_new = torch.randn(2, 256, 8, 8)
+        with self.assertRaises(AssertionError):
+            decoder.forward_train(feat, encoder_out_new, self.data_info)
+
+    def test_forward_test(self):
+        feat = torch.randn(2, 512, 8, 8)
+        encoder_out = torch.randn(2, 128, 8, 8)
+        module_loss_cfg = dict(type='CEModuleLoss')
+        decoder = SequenceAttentionDecoder(
+            dictionary=self.dict_cfg,
+            module_loss=module_loss_cfg,
+            return_feature=False)
+        output = decoder.forward_test(feat, encoder_out, self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (2, 40, 39))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_svtr_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_svtr_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..63396511393f7e85e5916cd9a20c8edd9dd3cad5
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_decoders/test_svtr_decoder.py
@@ -0,0 +1,96 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.decoders.svtr_decoder import SVTRDecoder
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestSVTRDecoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text.item = 'Hello'
+        gt_text_sample1.gt_text = gt_text
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text = LabelData()
+        gt_text = LabelData()
+        gt_text.item = 'World'
+        gt_text_sample2.gt_text = gt_text
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+
+    def test_init(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            dict_cfg = dict(
+                type='Dictionary',
+                dict_file=dict_file,
+                with_start=True,
+                with_end=True,
+                same_start_end=True,
+                with_padding=True,
+                with_unknown=True)
+            loss_cfg = dict(type='CTCModuleLoss', letter_case='lower')
+            SVTRDecoder(
+                in_channels=192, dictionary=dict_cfg, module_loss=loss_cfg)
+
+    def test_forward_train(self):
+        out_enc = torch.randn(1, 192, 1, 25)
+        tmp_dir = tempfile.TemporaryDirectory()
+        max_seq_len = 25
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CTCModuleLoss', letter_case='lower')
+        decoder = SVTRDecoder(
+            in_channels=192,
+            dictionary=dict_cfg,
+            module_loss=loss_cfg,
+            max_seq_len=max_seq_len,
+        )
+        data_samples = decoder.module_loss.get_targets(self.data_info)
+        output = decoder.forward_train(
+            out_enc=out_enc, data_samples=data_samples)
+        self.assertTupleEqual(tuple(output.shape), (1, max_seq_len, 39))
+
+    def test_forward_test(self):
+        out_enc = torch.randn(1, 192, 1, 25)
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        loss_cfg = dict(type='CTCModuleLoss', letter_case='lower')
+        decoder = SVTRDecoder(
+            in_channels=192,
+            dictionary=dict_cfg,
+            module_loss=loss_cfg,
+            max_seq_len=25)
+        output = decoder.forward_test(
+            out_enc=out_enc, data_samples=self.data_info)
+        self.assertTupleEqual(tuple(output.shape), (1, 25, 39))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_dictionary/test_dictionary.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_dictionary/test_dictionary.py
new file mode 100644
index 0000000000000000000000000000000000000000..d6e24d2abde94de2ccb901a7f6539d233f42b8a4
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_dictionary/test_dictionary.py
@@ -0,0 +1,143 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+from mmocr.models.common import Dictionary
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestDictionary(TestCase):
+
+    def test_init(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+
+        # create dummy data
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # with start
+        dict_gen = Dictionary(
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        self.assertEqual(dict_gen.num_classes, 40)
+        self.assertListEqual(
+            dict_gen.dict,
+            list('0123456789abcdefghijklmnopqrstuvwxyz') +
+            ['<BOS>', '<EOS>', '<PAD>', '<UKN>'])
+        dict_gen = Dictionary(
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True)
+        assert dict_gen.num_classes == 39
+        assert dict_gen.dict == list('0123456789abcdefghijklmnopqrstuvwxyz'
+                                     ) + ['<BOS/EOS>', '<PAD>', '<UKN>']
+        self.assertEqual(dict_gen.num_classes, 39)
+        self.assertListEqual(
+            dict_gen.dict,
+            list('0123456789abcdefghijklmnopqrstuvwxyz') +
+            ['<BOS/EOS>', '<PAD>', '<UKN>'])
+        dict_gen = Dictionary(
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True,
+            start_token='<STA>',
+            end_token='<END>',
+            padding_token='<BLK>',
+            unknown_token='<NO>')
+        assert dict_gen.num_classes == 40
+        assert dict_gen.dict[-4:] == ['<STA>', '<END>', '<BLK>', '<NO>']
+        self.assertEqual(dict_gen.num_classes, 40)
+        self.assertListEqual(dict_gen.dict[-4:],
+                             ['<STA>', '<END>', '<BLK>', '<NO>'])
+        dict_gen = Dictionary(
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=True,
+            start_end_token='<BE>')
+        self.assertEqual(dict_gen.num_classes, 39)
+        self.assertListEqual(dict_gen.dict[-3:], ['<BE>', '<PAD>', '<UKN>'])
+        # test len(line) > 1
+        create_dummy_dict_file(dict_file, chars=['12', '3', '4'])
+        with self.assertRaises(ValueError):
+            dict_gen = Dictionary(dict_file=dict_file)
+
+        # test duplicated dict
+        create_dummy_dict_file(dict_file, chars=['1', '1', '2'])
+        with self.assertRaises(AssertionError):
+            dict_gen = Dictionary(dict_file=dict_file)
+
+        tmp_dir.cleanup()
+
+    def test_num_classes(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            # create dummy data
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            dict_gen = Dictionary(dict_file=dict_file)
+            assert dict_gen.num_classes == 36
+
+    def test_char2idx(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+
+            # create dummy data
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            dict_gen = Dictionary(dict_file=dict_file, with_unknown=False)
+            self.assertEqual(dict_gen.char2idx('0'), 0)
+
+            dict_gen = Dictionary(dict_file=dict_file, with_unknown=True)
+            self.assertEqual(dict_gen.char2idx('H'), dict_gen.unknown_idx)
+
+            dict_gen = Dictionary(
+                dict_file=dict_file, with_unknown=True, unknown_token=None)
+            self.assertEqual(dict_gen.char2idx('H'), None)
+
+            # Test strict
+            dict_gen = Dictionary(dict_file=dict_file, with_unknown=False)
+            with self.assertRaises(Exception):
+                dict_gen.char2idx('H', strict=True)
+            self.assertEqual(dict_gen.char2idx('H', strict=False), None)
+
+    def test_str2idx(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+
+            # create dummy data
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            dict_gen = Dictionary(dict_file=dict_file)
+            self.assertEqual(dict_gen.str2idx('01234'), [0, 1, 2, 3, 4])
+            with self.assertRaises(Exception):
+                dict_gen.str2idx('H')
+
+            dict_gen = Dictionary(dict_file=dict_file, with_unknown=True)
+            self.assertListEqual(dict_gen.str2idx('H'), [dict_gen.unknown_idx])
+
+            dict_gen = Dictionary(
+                dict_file=dict_file, with_unknown=True, unknown_token=None)
+            self.assertListEqual(dict_gen.str2idx('H'), [])
+
+    def test_idx2str(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+
+            # create dummy data
+            dict_file = osp.join(tmp_dir, 'fake_chars.txt')
+            create_dummy_dict_file(dict_file)
+            dict_gen = Dictionary(dict_file=dict_file)
+            self.assertEqual(dict_gen.idx2str([0, 1, 2, 3, 4]), '01234')
+            with self.assertRaises(AssertionError):
+                dict_gen.idx2str('01234')
+            with self.assertRaises(AssertionError):
+                dict_gen.idx2str([40])
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_abi_encoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_abi_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..7b108856bfe5f86e366d696c89efa7b772812ba5
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_abi_encoder.py
@@ -0,0 +1,18 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.encoders.abi_encoder import ABIEncoder
+
+
+class TestABIEncoder(TestCase):
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            ABIEncoder(d_model=512, n_head=10)
+
+    def test_forward(self):
+        model = ABIEncoder()
+        x = torch.randn(10, 512, 8, 32)
+        self.assertEqual(model(x, None).shape, torch.Size([10, 512, 8, 32]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_aster_encoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_aster_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..b279c97f4d73726280ff897611e249055eca529e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_aster_encoder.py
@@ -0,0 +1,15 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textrecog.encoders import ASTEREncoder
+
+
+class TestASTEREncoder(unittest.TestCase):
+
+    def test_encoder(self):
+        encoder = ASTEREncoder(10)
+        feat = torch.randn(2, 10, 1, 25)
+        out = encoder(feat)
+        self.assertEqual(out.shape, torch.Size([2, 25, 10]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_channel_reduction_encoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_channel_reduction_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..ec82f3e74c5b6ecffa05008bb1797381b6988fef
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_channel_reduction_encoder.py
@@ -0,0 +1,26 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textrecog.encoders import ChannelReductionEncoder
+from mmocr.structures import TextRecogDataSample
+
+
+class TestChannelReductionEncoder(unittest.TestCase):
+
+    def setUp(self):
+        self.feat = torch.randn(2, 512, 8, 25)
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+
+    def test_encoder(self):
+        encoder = ChannelReductionEncoder(512, 256)
+        encoder.train()
+        out_enc = encoder(self.feat, self.data_info)
+        self.assertEqual(out_enc.shape, torch.Size([2, 256, 8, 25]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_nrtr_encoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_nrtr_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..fbe20efb0581b14f3d713abeae398eeeffc70496
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_nrtr_encoder.py
@@ -0,0 +1,27 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textrecog.encoders import NRTREncoder
+from mmocr.structures import TextRecogDataSample
+
+
+class TestNRTREncoder(unittest.TestCase):
+
+    def setUp(self):
+        self.feat = torch.randn(2, 512, 8, 25)
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+
+    def test_encoder(self):
+        nrtr_encoder = NRTREncoder()
+        nrtr_encoder.init_weights()
+        nrtr_encoder.train()
+        out_enc = nrtr_encoder(self.feat, self.data_info)
+        self.assertEqual(out_enc.shape, torch.Size([2, 200, 512]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_sar_encoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_sar_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..f36d9736eaa4f7b40d68165bd60b4eb42b13dd35
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_sar_encoder.py
@@ -0,0 +1,44 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.encoders import SAREncoder
+from mmocr.structures import TextRecogDataSample
+
+
+class TestSAREncoder(TestCase):
+
+    def setUp(self):
+        gt_text_sample1 = TextRecogDataSample()
+        gt_text_sample1.set_metainfo(dict(valid_ratio=0.9))
+
+        gt_text_sample2 = TextRecogDataSample()
+        gt_text_sample2.set_metainfo(dict(valid_ratio=1.0))
+
+        self.data_info = [gt_text_sample1, gt_text_sample2]
+
+    def test_init(self):
+        with self.assertRaises(AssertionError):
+            SAREncoder(enc_bi_rnn='bi')
+        with self.assertRaises(AssertionError):
+            SAREncoder(rnn_dropout=2)
+        with self.assertRaises(AssertionError):
+            SAREncoder(enc_gru='gru')
+        with self.assertRaises(AssertionError):
+            SAREncoder(d_model=512.5)
+        with self.assertRaises(AssertionError):
+            SAREncoder(d_enc=200.5)
+        with self.assertRaises(AssertionError):
+            SAREncoder(mask='mask')
+
+    def test_forward(self):
+        encoder = SAREncoder()
+        encoder.init_weights()
+        encoder.train()
+
+        feat = torch.randn(2, 512, 4, 40)
+        with self.assertRaises(AssertionError):
+            encoder(feat, self.data_info * 2)
+        out_enc = encoder(feat, self.data_info)
+        self.assertEqual(out_enc.shape, torch.Size([2, 512]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_satrn_decoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_satrn_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..6d7e7ddc4ba22c02899a6effa8e3f86e60ee10d7
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_satrn_decoder.py
@@ -0,0 +1,25 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import torch
+
+from mmocr.models.textrecog.encoders import SATRNEncoder
+from mmocr.structures import TextRecogDataSample
+
+
+class TestSATRNEncoder(unittest.TestCase):
+
+    def setUp(self):
+        self.feat = torch.randn(1, 512, 8, 25)
+        data_info = TextRecogDataSample()
+        data_info.set_metainfo(dict(valid_ratio=1.0))
+        self.data_info = [data_info]
+
+    def test_encoder(self):
+        satrn_encoder = SATRNEncoder()
+        satrn_encoder.init_weights()
+        satrn_encoder.train()
+        out_enc = satrn_encoder(self.feat)
+        self.assertEqual(out_enc.shape, torch.Size([1, 200, 512]))
+        out_enc = satrn_encoder(self.feat, self.data_info)
+        self.assertEqual(out_enc.shape, torch.Size([1, 200, 512]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_svtr_encoder.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_svtr_encoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..8dab69459ac2588d6a246b3feb4289a2eefde060
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_encoders/test_svtr_encoder.py
@@ -0,0 +1,85 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.encoders.svtr_encoder import (AttnMixer, ConvMixer,
+                                                          MerigingBlock,
+                                                          MixingBlock,
+                                                          OverlapPatchEmbed,
+                                                          SVTREncoder)
+
+
+class TestOverlapPatchEmbed(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 3, 32, 100)
+
+    def test_overlap_patch_embed(self):
+        Overlap_Patch_Embed = OverlapPatchEmbed(in_channels=self.img.shape[1])
+        self.assertEqual(
+            Overlap_Patch_Embed(self.img).shape, torch.Size([1, 8 * 25, 768]))
+
+
+class TestConvMixer(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 8 * 25, 768)
+
+    def test_conv_mixer(self):
+        conv_mixer = ConvMixer(embed_dims=self.img.shape[-1])
+        self.assertEqual(
+            conv_mixer(self.img).shape, torch.Size([1, 8 * 25, 768]))
+
+
+class TestAttnMixer(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 8 * 25, 768)
+
+    def test_attn_mixer(self):
+        attn_mixer = AttnMixer(embed_dims=self.img.shape[-1])
+        self.assertEqual(
+            attn_mixer(self.img).shape, torch.Size([1, 8 * 25, 768]))
+
+
+class TestMixingBlock(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 8 * 25, 768)
+
+    def test_mixing_block(self):
+        mixing_block = MixingBlock(self.img.shape[-1], num_heads=8)
+        self.assertEqual(
+            mixing_block(self.img).shape, torch.Size([1, 8 * 25, 768]))
+
+
+class TestMergingBlock(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 64, 8, 25)
+
+    def test_mergingblock(self):
+        mergingblock1 = MerigingBlock(
+            self.img.shape[1], self.img.shape[1] * 2, types='Pool')
+        mergingblock2 = MerigingBlock(
+            self.img.shape[1], self.img.shape[1] * 2, types='Conv')
+        self.assertEqual(
+            [mergingblock1(self.img).shape,
+             mergingblock2(self.img).shape],
+            [torch.Size([1, 4 * 25, 64 * 2]),
+             torch.Size([1, 4 * 25, 64 * 2])])
+
+
+class TestSVTREncoder(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 3, 32, 100)
+
+    def test_svtr_encoder(self):
+        model = SVTREncoder(
+            img_size=self.img.shape[-2:],
+            in_channels=self.img.shape[1],
+        )
+        model.train()
+        self.assertEqual(model(self.img).shape, torch.Size([1, 192, 1, 25]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_layers/test_conv_layer.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_layers/test_conv_layer.py
new file mode 100644
index 0000000000000000000000000000000000000000..bf65d86cc97a023d486209039f744d7f3f2b2227
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_layers/test_conv_layer.py
@@ -0,0 +1,42 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.layers.conv_layer import (BasicBlock, Bottleneck,
+                                                      conv1x1, conv3x3)
+
+
+class TestUtils(TestCase):
+
+    def test_conv3x3(self):
+        conv = conv3x3(3, 6)
+        self.assertEqual(conv.in_channels, 3)
+        self.assertEqual(conv.out_channels, 6)
+        self.assertEqual(conv.kernel_size, (3, 3))
+
+    def test_conv1x1(self):
+        conv = conv1x1(3, 6)
+        self.assertEqual(conv.in_channels, 3)
+        self.assertEqual(conv.out_channels, 6)
+        self.assertEqual(conv.kernel_size, (1, 1))
+
+
+class TestBasicBlock(TestCase):
+
+    def test_forward(self):
+        x = torch.rand(1, 64, 224, 224)
+        basic_block = BasicBlock(64, 64)
+        self.assertEqual(basic_block.expansion, 1)
+        out = basic_block(x)
+        self.assertEqual(out.shape, torch.Size([1, 64, 224, 224]))
+
+
+class TestBottleneck(TestCase):
+
+    def test_forward(self):
+        x = torch.rand(1, 64, 224, 224)
+        bottle_neck = Bottleneck(64, 64, downsample=True)
+        self.assertEqual(bottle_neck.expansion, 4)
+        out = bottle_neck(x)
+        self.assertEqual(out.shape, torch.Size([1, 256, 224, 224]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_abi_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_abi_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..f0f7c43e2bb61ad4f086fde1152e32ab3617f1a3
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_abi_module_loss.py
@@ -0,0 +1,65 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.module_losses import ABIModuleLoss
+from mmocr.structures import TextRecogDataSample
+
+
+class TestABIModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+
+        data_sample1 = TextRecogDataSample()
+        data_sample1.gt_text = LabelData(item='hello')
+        data_sample2 = TextRecogDataSample()
+        data_sample2.gt_text = LabelData(item='123')
+        self.gt = [data_sample1, data_sample2]
+
+    def _equal(self, a, b):
+        if isinstance(a, (torch.Tensor, np.ndarray)):
+            return (a == b).all()
+        else:
+            return a == b
+
+    def test_forward(self):
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=False)
+        abi_loss = ABIModuleLoss(dict_cfg, max_seq_len=10)
+        abi_loss.get_targets(self.gt)
+        outputs = dict(
+            out_vis=dict(logits=torch.randn(2, 10, 38)),
+            out_langs=[
+                dict(logits=torch.randn(2, 10, 38)),
+                dict(logits=torch.randn(2, 10, 38))
+            ],
+            out_fusers=[
+                dict(logits=torch.randn(2, 10, 38)),
+                dict(logits=torch.randn(2, 10, 38))
+            ])
+        losses = abi_loss(outputs, self.gt)
+        self.assertIsInstance(losses, dict)
+        self.assertIn('loss_visual', losses)
+        self.assertIn('loss_lang', losses)
+        self.assertIn('loss_fusion', losses)
+        print(losses['loss_lang'])
+        print(losses['loss_fusion'])
+
+        outputs.pop('out_vis')
+        abi_loss(outputs, self.gt)
+        out_langs = outputs.pop('out_langs')
+        abi_loss(outputs, self.gt)
+        outputs.pop('out_fusers')
+        with self.assertRaises(AssertionError):
+            abi_loss(outputs, self.gt)
+        outputs['out_langs'] = out_langs
+        abi_loss(outputs, self.gt)
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_base_recog_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_base_recog_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..e7cc5f12807da924c8c64d30cd59be59001d94c8
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_base_recog_module_loss.py
@@ -0,0 +1,140 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.module_losses import BaseTextRecogModuleLoss
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestBaseRecogModuleLoss(TestCase):
+
+    def _equal(self, a, b):
+        if isinstance(a, (torch.Tensor, np.ndarray)):
+            return (a == b).all()
+        else:
+            return a == b
+
+    def test_init(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        base_recog_loss = BaseTextRecogModuleLoss(dict_cfg)
+        self.assertIsInstance(base_recog_loss.dictionary, Dictionary)
+        # test case mode
+        with self.assertRaises(AssertionError):
+            base_recog_loss = BaseTextRecogModuleLoss(
+                dict_cfg, letter_case='no')
+        # test invalid pad_with
+        with self.assertRaises(AssertionError):
+            base_recog_loss = BaseTextRecogModuleLoss(
+                dict_cfg, pad_with='test')
+        # test invalid combination of dictionary and pad_with
+        dict_cfg = dict(type='Dictionary', dict_file=dict_file, with_end=False)
+        for pad_with in ['end', 'padding']:
+            with self.assertRaisesRegex(
+                    ValueError, f'pad_with="{pad_with}", but'
+                    f' dictionary.{pad_with}_idx is None'):
+                base_recog_loss = BaseTextRecogModuleLoss(
+                    dict_cfg, pad_with=pad_with)
+        with self.assertRaisesRegex(
+                ValueError, 'pad_with="auto", but'
+                ' dictionary.end_idx and dictionary.padding_idx are both'
+                ' None'):
+            base_recog_loss = BaseTextRecogModuleLoss(
+                dict_cfg, pad_with='auto')
+
+        # test dictionary is invalid type
+        dict_cfg = ['tmp']
+        with self.assertRaisesRegex(
+                TypeError, ('The type of dictionary should be `Dictionary`'
+                            ' or dict, '
+                            f'but got {type(dict_cfg)}')):
+            base_recog_loss = BaseTextRecogModuleLoss(dict_cfg)
+
+        tmp_dir.cleanup()
+
+    def test_get_targets(self):
+        label_data = LabelData(item='0123')
+        data_sample = TextRecogDataSample()
+        data_sample.gt_text = label_data
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dictionary = Dictionary(
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        base_recog_loss = BaseTextRecogModuleLoss(dictionary, max_seq_len=10)
+        target_data_samples = base_recog_loss.get_targets([data_sample])
+        assert self._equal(target_data_samples[0].gt_text.indexes,
+                           torch.LongTensor([0, 1, 2, 3]))
+        padding_idx = dictionary.padding_idx
+        assert self._equal(
+            target_data_samples[0].gt_text.padded_indexes,
+            torch.LongTensor([
+                dictionary.start_idx, 0, 1, 2, 3, dictionary.end_idx,
+                padding_idx, padding_idx, padding_idx, padding_idx
+            ]))
+        self.assertTrue(target_data_samples[0].have_target)
+
+        target_data_samples = base_recog_loss.get_targets(target_data_samples)
+        data_sample.set_metainfo(dict(have_target=False))
+
+        dictionary = Dictionary(
+            dict_file=dict_file,
+            with_start=False,
+            with_end=False,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        base_recog_loss = BaseTextRecogModuleLoss(dictionary, max_seq_len=3)
+        data_sample.gt_text.item = '0123'
+        target_data_samples = base_recog_loss.get_targets([data_sample])
+        assert self._equal(target_data_samples[0].gt_text.indexes,
+                           torch.LongTensor([0, 1, 2, 3]))
+        padding_idx = dictionary.padding_idx
+        assert self._equal(target_data_samples[0].gt_text.padded_indexes,
+                           torch.LongTensor([0, 1, 2]))
+        data_sample.set_metainfo(dict(have_target=False))
+
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=False,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        base_recog_loss = BaseTextRecogModuleLoss(
+            dict_cfg, max_seq_len=10, letter_case='lower', pad_with='none')
+        data_sample.gt_text.item = '0123'
+        target_data_samples = base_recog_loss.get_targets([data_sample])
+        assert self._equal(target_data_samples[0].gt_text.indexes,
+                           torch.LongTensor([0, 1, 2, 3]))
+        assert self._equal(target_data_samples[0].gt_text.padded_indexes,
+                           torch.LongTensor([0, 1, 2, 3, 36]))
+
+        target_data_samples = base_recog_loss.get_targets([])
+        self.assertListEqual(target_data_samples, [])
+
+        tmp_dir.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_ce_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_ce_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..f979ed0ddd88f62f52816b0e617eb9b269014386
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_ce_module_loss.py
@@ -0,0 +1,109 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.module_losses import CEModuleLoss
+from mmocr.structures import TextRecogDataSample
+
+
+class TestCEModuleLoss(TestCase):
+
+    def setUp(self) -> None:
+
+        data_sample1 = TextRecogDataSample()
+        data_sample1.gt_text = LabelData(item='hello')
+        data_sample2 = TextRecogDataSample()
+        data_sample2.gt_text = LabelData(item='01abyz')
+        data_sample3 = TextRecogDataSample()
+        data_sample3.gt_text = LabelData(item='123456789')
+        self.gt = [data_sample1, data_sample2, data_sample3]
+
+    def test_init(self):
+        dict_file = 'dicts/lower_english_digits.txt'
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=False)
+
+        with self.assertRaises(AssertionError):
+            CEModuleLoss(dict_cfg, reduction=1)
+        with self.assertRaises(AssertionError):
+            CEModuleLoss(dict_cfg, reduction='avg')
+        with self.assertRaises(AssertionError):
+            CEModuleLoss(dict_cfg, flatten=1)
+        with self.assertRaises(AssertionError):
+            CEModuleLoss(dict_cfg, ignore_first_char=1)
+        with self.assertRaises(AssertionError):
+            CEModuleLoss(dict_cfg, ignore_char=['ignore'])
+        ce_loss = CEModuleLoss(dict_cfg)
+        self.assertEqual(ce_loss.ignore_index, 37)
+        ce_loss = CEModuleLoss(dict_cfg, ignore_char=-1)
+        self.assertEqual(ce_loss.ignore_index, -1)
+        # with self.assertRaises(ValueError):
+        with self.assertWarns(UserWarning):
+            ce_loss = CEModuleLoss(dict_cfg, ignore_char='ignore')
+        with self.assertWarns(UserWarning):
+            ce_loss = CEModuleLoss(
+                dict(
+                    type='Dictionary', dict_file=dict_file, with_unknown=True),
+                ignore_char='M',
+                pad_with='none')
+        with self.assertWarns(UserWarning):
+            ce_loss = CEModuleLoss(
+                dict(
+                    type='Dictionary', dict_file=dict_file,
+                    with_unknown=False),
+                ignore_char='M',
+                pad_with='none')
+        with self.assertWarns(UserWarning):
+            ce_loss = CEModuleLoss(
+                dict(
+                    type='Dictionary', dict_file=dict_file,
+                    with_unknown=False),
+                ignore_char='unknown',
+                pad_with='none')
+        ce_loss = CEModuleLoss(dict_cfg, ignore_char='1')
+        self.assertEqual(ce_loss.ignore_index, 1)
+
+    def test_forward(self):
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file='dicts/lower_english_digits.txt',
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=False)
+        max_seq_len = 40
+        ce_loss = CEModuleLoss(dict_cfg)
+        ce_loss.get_targets(self.gt)
+        outputs = torch.rand(3, max_seq_len, ce_loss.dictionary.num_classes)
+        losses = ce_loss(outputs, self.gt)
+        self.assertIsInstance(losses, dict)
+        self.assertIn('loss_ce', losses)
+        self.assertEqual(losses['loss_ce'].size(1), max_seq_len)
+
+        # test ignore_first_char
+        ce_loss = CEModuleLoss(dict_cfg, ignore_first_char=True)
+        ignore_first_char_losses = ce_loss(outputs, self.gt)
+        self.assertEqual(ignore_first_char_losses['loss_ce'].shape,
+                         torch.Size([3, max_seq_len - 1]))
+
+        # test flatten
+        ce_loss = CEModuleLoss(dict_cfg, flatten=True)
+        flatten_losses = ce_loss(outputs, self.gt)
+        self.assertEqual(flatten_losses['loss_ce'].shape,
+                         torch.Size([3 * max_seq_len]))
+
+        self.assertTrue(
+            torch.isclose(
+                losses['loss_ce'].view(-1),
+                flatten_losses['loss_ce'],
+                atol=1e-6,
+                rtol=0).all())
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_ctc_module_loss.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_ctc_module_loss.py
new file mode 100644
index 0000000000000000000000000000000000000000..e52a3ccbff794b82dfd528a7a20ca85c02d32e7e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_module_losses/test_ctc_module_loss.py
@@ -0,0 +1,80 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.module_losses import CTCModuleLoss
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestCTCModuleLoss(TestCase):
+
+    def test_ctc_loss(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        # create dummy data
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+
+        dictionary = Dictionary(dict_file=dict_file, with_padding=True)
+        with self.assertRaises(AssertionError):
+            CTCModuleLoss(dictionary=dictionary, flatten='flatten')
+        with self.assertRaises(AssertionError):
+            CTCModuleLoss(dictionary=dictionary, reduction=1)
+        with self.assertRaises(AssertionError):
+            CTCModuleLoss(dictionary=dictionary, zero_infinity='zero')
+
+        outputs = torch.zeros(2, 40, 37)
+        datasample1 = TextRecogDataSample()
+        gt_text1 = LabelData(item='hell')
+        datasample1.gt_text = gt_text1
+        datasample2 = datasample1.clone()
+        gt_text2 = LabelData(item='owrd')
+        datasample2.gt_text = gt_text2
+        data_samples = [datasample1, datasample2]
+        ctc_loss = CTCModuleLoss(dictionary=dictionary)
+        data_samples = ctc_loss.get_targets(data_samples)
+        losses = ctc_loss(outputs, data_samples)
+        assert isinstance(losses, dict)
+        assert 'loss_ctc' in losses
+        assert torch.allclose(losses['loss_ctc'],
+                              torch.tensor(losses['loss_ctc'].item()).float())
+        # test flatten = False
+        ctc_loss = CTCModuleLoss(dictionary=dictionary, flatten=False)
+        losses = ctc_loss(outputs, data_samples)
+        assert isinstance(losses, dict)
+        assert 'loss_ctc' in losses
+        assert torch.allclose(losses['loss_ctc'],
+                              torch.tensor(losses['loss_ctc'].item()).float())
+        tmp_dir.cleanup()
+
+    def test_get_targets(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        # create dummy data
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file, list('helowrd'))
+
+        dictionary = Dictionary(dict_file=dict_file, with_padding=True)
+        loss = CTCModuleLoss(dictionary=dictionary, letter_case='lower')
+        # test encode str to tensor
+        datasample1 = TextRecogDataSample()
+        gt_text1 = LabelData(item='hell')
+        datasample1.gt_text = gt_text1
+        datasample2 = datasample1.clone()
+        gt_text2 = LabelData(item='owrd')
+        datasample2.gt_text = gt_text2
+
+        data_samples = [datasample1, datasample2]
+        expect_tensor1 = torch.IntTensor([0, 1, 2, 2])
+        expect_tensor2 = torch.IntTensor([3, 4, 5, 6])
+
+        data_samples = loss.get_targets(data_samples)
+        self.assertTrue(
+            torch.allclose(data_samples[0].gt_text.indexes, expect_tensor1))
+        self.assertTrue(
+            torch.allclose(data_samples[1].gt_text.indexes, expect_tensor2))
+        tmp_dir.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_plugins/test_gcamodule.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_plugins/test_gcamodule.py
new file mode 100644
index 0000000000000000000000000000000000000000..17e8ea660c13dab1b2c26f3f367a171c6082387f
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_plugins/test_gcamodule.py
@@ -0,0 +1,38 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+from parameterized import parameterized
+
+from mmocr.models.textrecog.plugins import GCAModule
+
+
+class TestGCAModule(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 32, 32, 100)
+
+    @parameterized.expand([('att'), ('avg')])
+    def test_gca_module_pooling(self, pooling_type):
+        gca_module = GCAModule(
+            in_channels=32,
+            ratio=0.0625,
+            n_head=1,
+            pooling_type=pooling_type,
+            is_att_scale=False,
+            fusion_type='channel_add')
+        self.assertEqual(
+            gca_module(self.img).shape, torch.Size([1, 32, 32, 100]))
+
+    @parameterized.expand([('channel_add'), ('channel_mul'),
+                           ('channel_concat')])
+    def test_gca_module_fusion(self, fusion_type):
+        gca_module = GCAModule(
+            in_channels=32,
+            ratio=0.0625,
+            n_head=1,
+            pooling_type='att',
+            is_att_scale=False,
+            fusion_type=fusion_type)
+        self.assertEqual(
+            gca_module(self.img).shape, torch.Size([1, 32, 32, 100]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_plugins/test_maxpool.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_plugins/test_maxpool.py
new file mode 100644
index 0000000000000000000000000000000000000000..1800632f53bbce50416f54b8fe55f2da651b24c0
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_plugins/test_maxpool.py
@@ -0,0 +1,16 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.plugins import Maxpool2d
+
+
+class TestMaxpool2d(TestCase):
+
+    def setUp(self) -> None:
+        self.img = torch.rand(1, 3, 32, 100)
+
+    def test_maxpool2d(self):
+        maxpool2d = Maxpool2d(kernel_size=2, stride=2)
+        self.assertEqual(maxpool2d(self.img).shape, torch.Size([1, 3, 16, 50]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_attn_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_attn_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..c0b0c18c42499b87b187928af5b5a109e84449d1
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_attn_postprocessor.py
@@ -0,0 +1,43 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.postprocessors.attn_postprocessor import \
+    AttentionPostprocessor
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestAttentionPostprocessor(TestCase):
+
+    def test_call(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_gen = Dictionary(
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=True,
+            with_padding=True,
+            with_unknown=False)
+        data_samples = [TextRecogDataSample()]
+        postprocessor = AttentionPostprocessor(
+            max_seq_len=None, dictionary=dict_gen, ignore_chars=['0'])
+        dict_gen.end_idx = 3
+        # test decode output to index
+        dummy_output = torch.Tensor([[[1, 100, 3, 4, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 100, 4, 5, 6, 7, 8],
+                                      [1, 2, 100, 4, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 3, 100, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 3, 100, 5, 6, 7, 8]]])
+        data_samples = postprocessor(dummy_output, data_samples)
+        self.assertEqual(data_samples[0].pred_text.item, '122')
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_base_textrecog_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_base_textrecog_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..1fb163c64d55caf4025c61e7b271b71ee90740b2
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_base_textrecog_postprocessor.py
@@ -0,0 +1,146 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase, mock
+
+import torch
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.postprocessors import BaseTextRecogPostprocessor
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestBaseTextRecogPostprocessor(TestCase):
+
+    def test_init(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        # test diction cfg
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        base_postprocessor = BaseTextRecogPostprocessor(dict_cfg)
+        self.assertIsInstance(base_postprocessor.dictionary, Dictionary)
+        self.assertListEqual(base_postprocessor.ignore_indexes,
+                             [base_postprocessor.dictionary.padding_idx])
+
+        base_postprocessor = BaseTextRecogPostprocessor(
+            dict_cfg, ignore_chars=['1', '2', '3'])
+
+        self.assertListEqual(base_postprocessor.ignore_indexes, [1, 2, 3])
+
+        # test ignore_chars
+        with self.assertRaisesRegex(TypeError,
+                                    'ignore_chars must be list of str'):
+            base_postprocessor = BaseTextRecogPostprocessor(
+                dict_cfg, ignore_chars=[1, 2, 3])
+        with self.assertWarnsRegex(Warning,
+                                   'M does not exist in the dictionary'):
+            base_postprocessor = BaseTextRecogPostprocessor(
+                dict_cfg, ignore_chars=['M'])
+
+        base_postprocessor = BaseTextRecogPostprocessor(
+            dict_cfg, ignore_chars=['1', '2', '3'])
+        # test dictionary is invalid type
+        dict_cfg = ['tmp']
+        with self.assertRaisesRegex(
+                TypeError, ('The type of dictionary should be `Dictionary`'
+                            ' or dict, '
+                            f'but got {type(dict_cfg)}')):
+            base_postprocessor = BaseTextRecogPostprocessor(dict_cfg)
+        # test diction cfg with with_unknown=False
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=False)
+        base_postprocessor = BaseTextRecogPostprocessor(
+            dict_cfg, ignore_chars=['1', '2', '3'])
+
+        self.assertListEqual(base_postprocessor.ignore_indexes, [1, 2, 3])
+
+        # test ignore_chars
+        with self.assertRaisesRegex(TypeError,
+                                    'ignore_chars must be list of str'):
+            base_postprocessor = BaseTextRecogPostprocessor(
+                dict_cfg, ignore_chars=[1, 2, 3])
+
+        with self.assertWarnsRegex(Warning,
+                                   'M does not exist in the dictionary'):
+            base_postprocessor = BaseTextRecogPostprocessor(
+                dict_cfg, ignore_chars=['M'])
+
+        with self.assertWarnsRegex(Warning,
+                                   'M does not exist in the dictionary'):
+            base_postprocessor = BaseTextRecogPostprocessor(
+                dict(
+                    type='Dictionary',
+                    dict_file=dict_file,
+                    with_unknown=True,
+                    unknown_token=None),
+                ignore_chars=['M'])
+
+        with self.assertWarnsRegex(Warning,
+                                   'M does not exist in the dictionary'):
+            base_postprocessor = BaseTextRecogPostprocessor(
+                dict(
+                    type='Dictionary', dict_file=dict_file, with_unknown=True),
+                ignore_chars=['M'])
+
+        with self.assertWarnsRegex(Warning,
+                                   'unknown does not exist in the dictionary'):
+            base_postprocessor = BaseTextRecogPostprocessor(
+                dict(
+                    type='Dictionary', dict_file=dict_file,
+                    with_unknown=False),
+                ignore_chars=['unknown'])
+
+        base_postprocessor = BaseTextRecogPostprocessor(
+            dict_cfg, ignore_chars=['1', '2', '3'])
+        # test dictionary is invalid type
+        dict_cfg = ['tmp']
+        with self.assertRaisesRegex(
+                TypeError, ('The type of dictionary should be `Dictionary`'
+                            ' or dict, '
+                            f'but got {type(dict_cfg)}')):
+            base_postprocessor = BaseTextRecogPostprocessor(dict_cfg)
+
+        tmp_dir.cleanup()
+
+    @mock.patch(f'{__name__}.BaseTextRecogPostprocessor.get_single_prediction')
+    def test_call(self, mock_get_single_prediction):
+
+        def mock_func(output, data_sample):
+            return [0, 1, 2], [0.8, 0.7, 0.9]
+
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_cfg = dict(
+            type='Dictionary',
+            dict_file=dict_file,
+            with_start=True,
+            with_end=True,
+            same_start_end=False,
+            with_padding=True,
+            with_unknown=True)
+        mock_get_single_prediction.side_effect = mock_func
+        data_samples = [TextRecogDataSample()]
+        postprocessor = BaseTextRecogPostprocessor(
+            max_seq_len=None, dictionary=dict_cfg)
+
+        # test decode output to index
+        dummy_output = torch.Tensor([[[1, 100, 3, 4, 5, 6, 7, 8]]])
+        data_samples = postprocessor(dummy_output, data_samples)
+        self.assertEqual(data_samples[0].pred_text.item, '012')
+        tmp_dir.cleanup()
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_ctc_postprocessor.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_ctc_postprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..359744b3cc04c59f91fb64eeb5de799e665a308e
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_postprocessors/test_ctc_postprocessor.py
@@ -0,0 +1,77 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.common.dictionary import Dictionary
+from mmocr.models.textrecog.postprocessors.ctc_postprocessor import \
+    CTCPostProcessor
+from mmocr.structures import TextRecogDataSample
+from mmocr.testing import create_dummy_dict_file
+
+
+class TestCTCPostProcessor(TestCase):
+
+    def test_get_single_prediction(self):
+
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_gen = Dictionary(
+            dict_file=dict_file,
+            with_start=False,
+            with_end=False,
+            with_padding=True,
+            with_unknown=False)
+        data_samples = [TextRecogDataSample()]
+        postprocessor = CTCPostProcessor(max_seq_len=None, dictionary=dict_gen)
+
+        # test decode output to index
+        dummy_output = torch.Tensor([[[1, 100, 3, 4, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 100, 4, 5, 6, 7, 8],
+                                      [1, 2, 100, 4, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 3, 100, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 3, 100, 5, 6, 7, 8]]])
+        index, score = postprocessor.get_single_prediction(
+            dummy_output[0], data_samples[0])
+        self.assertListEqual(index, [1, 0, 2, 0, 3, 0, 3])
+        self.assertListEqual(score,
+                             [100.0, 100.0, 100.0, 100.0, 100.0, 100.0, 100.0])
+        postprocessor = CTCPostProcessor(
+            max_seq_len=None, dictionary=dict_gen, ignore_chars=['0'])
+        index, score = postprocessor.get_single_prediction(
+            dummy_output[0], data_samples[0])
+        self.assertListEqual(index, [1, 2, 3, 3])
+        self.assertListEqual(score, [100.0, 100.0, 100.0, 100.0])
+        tmp_dir.cleanup()
+
+    def test_call(self):
+        tmp_dir = tempfile.TemporaryDirectory()
+        dict_file = osp.join(tmp_dir.name, 'fake_chars.txt')
+        create_dummy_dict_file(dict_file)
+        dict_gen = Dictionary(
+            dict_file=dict_file,
+            with_start=False,
+            with_end=False,
+            with_padding=True,
+            with_unknown=False)
+        data_samples = [TextRecogDataSample()]
+        postprocessor = CTCPostProcessor(max_seq_len=None, dictionary=dict_gen)
+
+        # test decode output to index
+        dummy_output = torch.Tensor([[[1, 100, 3, 4, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 100, 4, 5, 6, 7, 8],
+                                      [1, 2, 100, 4, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 3, 100, 5, 6, 7, 8],
+                                      [100, 2, 3, 4, 5, 6, 7, 8],
+                                      [1, 2, 3, 100, 5, 6, 7, 8]]])
+        data_samples = postprocessor(dummy_output, data_samples)
+        self.assertEqual(data_samples[0].pred_text.item, '1020303')
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_recognizers/test_encoder_decoder_recognizer.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_recognizers/test_encoder_decoder_recognizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..5c2165d983c2424f697f4609f980c0b5d89f371f
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_recognizers/test_encoder_decoder_recognizer.py
@@ -0,0 +1,135 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+
+from mmocr.models.textrecog.recognizers import EncoderDecoderRecognizer
+from mmocr.registry import MODELS
+
+
+class TestEncoderDecoderRecognizer(TestCase):
+
+    @MODELS.register_module()
+    class DummyModule:
+
+        def __init__(self, value):
+            self.value = value
+
+        def __call__(self, x, *args, **kwargs):
+            return x + self.value
+
+        def predict(self, x, y, *args, **kwargs):
+            if y is None:
+                return x
+            return x + y
+
+        def loss(self, x, y, *args, **kwargs):
+            if y is None:
+                return x
+            return x * y
+
+    def test_init(self):
+        # Decoder is not allowed to be None
+        with self.assertRaises(AssertionError):
+            EncoderDecoderRecognizer()
+
+        for attr in ['backbone', 'preprocessor', 'encoder']:
+            recognizer = EncoderDecoderRecognizer(
+                **{
+                    attr: dict(type='DummyModule', value=1),
+                    'decoder': dict(type='DummyModule', value=2)
+                })
+            self.assertTrue(hasattr(recognizer, attr))
+            self.assertFalse(
+                any(
+                    hasattr(recognizer, t)
+                    for t in ['backbone', 'preprocessor', 'encoder']
+                    if t != attr))
+
+    def test_extract_feat(self):
+        model = EncoderDecoderRecognizer(
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.extract_feat(torch.tensor([1])), torch.Tensor([1]))
+        model = EncoderDecoderRecognizer(
+            backbone=dict(type='DummyModule', value=1),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.extract_feat(torch.tensor([1])), torch.Tensor([2]))
+        model = EncoderDecoderRecognizer(
+            preprocessor=dict(type='DummyModule', value=2),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.extract_feat(torch.tensor([1])), torch.Tensor([3]))
+        model = EncoderDecoderRecognizer(
+            preprocessor=dict(type='DummyModule', value=2),
+            backbone=dict(type='DummyModule', value=1),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.extract_feat(torch.tensor([1])), torch.Tensor([4]))
+
+    def test_loss(self):
+        model = EncoderDecoderRecognizer(
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.loss(torch.tensor([1]), None), torch.Tensor([1]))
+        model = EncoderDecoderRecognizer(
+            encoder=dict(type='DummyModule', value=2),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.loss(torch.tensor([1]), None), torch.Tensor([3]))
+        model = EncoderDecoderRecognizer(
+            backbone=dict(type='DummyModule', value=1),
+            encoder=dict(type='DummyModule', value=2),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.loss(torch.tensor([1]), None), torch.Tensor([8]))
+        model = EncoderDecoderRecognizer(
+            backbone=dict(type='DummyModule', value=1),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.loss(torch.tensor([1]), None), torch.Tensor([2]))
+
+    def test_predict(self):
+        model = EncoderDecoderRecognizer(
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.predict(torch.tensor([1]), None), torch.Tensor([1]))
+        model = EncoderDecoderRecognizer(
+            encoder=dict(type='DummyModule', value=2),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.predict(torch.tensor([1]), None), torch.Tensor([4]))
+        model = EncoderDecoderRecognizer(
+            backbone=dict(type='DummyModule', value=1),
+            encoder=dict(type='DummyModule', value=2),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.predict(torch.tensor([1]), None), torch.Tensor([6]))
+        model = EncoderDecoderRecognizer(
+            backbone=dict(type='DummyModule', value=1),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model.loss(torch.tensor([1]), None), torch.Tensor([2]))
+
+    def test_forward(self):
+        model = EncoderDecoderRecognizer(
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model._forward(torch.tensor([1]), None), torch.Tensor([2]))
+        model = EncoderDecoderRecognizer(
+            encoder=dict(type='DummyModule', value=2),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model._forward(torch.tensor([1]), None), torch.Tensor([2]))
+        model = EncoderDecoderRecognizer(
+            backbone=dict(type='DummyModule', value=1),
+            encoder=dict(type='DummyModule', value=2),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model._forward(torch.tensor([1]), None), torch.Tensor([3]))
+        model = EncoderDecoderRecognizer(
+            backbone=dict(type='DummyModule', value=1),
+            decoder=dict(type='DummyModule', value=1))
+        self.assertEqual(
+            model._forward(torch.tensor([1]), None), torch.Tensor([3]))
diff --git a/mmocr-dev-1.x/tests/test_models/test_textrecog/test_recognizers/test_encoder_decoder_recognizer_tta.py b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_recognizers/test_encoder_decoder_recognizer_tta.py
new file mode 100644
index 0000000000000000000000000000000000000000..2c2da3f8617cdd4acf2e927a732b14f2999edc83
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_models/test_textrecog/test_recognizers/test_encoder_decoder_recognizer_tta.py
@@ -0,0 +1,42 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import torch
+import torch.nn as nn
+from mmengine.structures import LabelData
+
+from mmocr.models.textrecog.recognizers import EncoderDecoderRecognizerTTAModel
+from mmocr.structures import TextRecogDataSample
+
+
+class DummyModel(nn.Module):
+
+    def __init__(self):
+        super().__init__()
+
+    def forward(self, x):
+        return x
+
+    def test_step(self, x):
+        return self.forward(x)
+
+
+class TestEncoderDecoderRecognizerTTAModel(TestCase):
+
+    def test_merge_preds(self):
+
+        data_sample1 = TextRecogDataSample(
+            pred_text=LabelData(
+                score=torch.tensor([0.1, 0.2, 0.3, 0.4, 0.5]), text='abcde'))
+        data_sample2 = TextRecogDataSample(
+            pred_text=LabelData(
+                score=torch.tensor([0.2, 0.3, 0.4, 0.5, 0.6]), text='bcdef'))
+        data_sample3 = TextRecogDataSample(
+            pred_text=LabelData(
+                score=torch.tensor([0.3, 0.4, 0.5, 0.6, 0.7]), text='cdefg'))
+        aug_data_samples = [data_sample1, data_sample2, data_sample3]
+        batch_aug_data_samples = [aug_data_samples] * 3
+        model = EncoderDecoderRecognizerTTAModel(module=DummyModel())
+        preds = model.merge_preds(batch_aug_data_samples)
+        for pred in preds:
+            self.assertEqual(pred.pred_text.text, 'cdefg')
diff --git a/mmocr-dev-1.x/tests/test_structures/test_kie_data_sample.py b/mmocr-dev-1.x/tests/test_structures/test_kie_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..48c37cb9e61fdf917ed6cea43c1eb6c912283edb
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_structures/test_kie_data_sample.py
@@ -0,0 +1,105 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.structures import KIEDataSample
+
+
+class TestTextDetDataSample(TestCase):
+
+    def _equal(self, a, b):
+        if isinstance(a, (torch.Tensor, np.ndarray)):
+            return (a == b).all()
+        else:
+            return a == b
+
+    def test_init(self):
+        meta_info = dict(
+            img_size=[256, 256],
+            scale_factor=np.array([1.5, 1.5]),
+            img_shape=torch.rand(4))
+
+        kie_data_sample = KIEDataSample(metainfo=meta_info)
+        assert 'img_size' in kie_data_sample
+
+        self.assertListEqual(kie_data_sample.img_size, [256, 256])
+        self.assertListEqual(kie_data_sample.get('img_size'), [256, 256])
+
+    def test_setter(self):
+        kie_data_sample = KIEDataSample()
+        # test gt_instances
+        gt_instances_data = dict(
+            bboxes=torch.rand(4, 4),
+            labels=torch.rand(4),
+            texts=['t1', 't2', 't3', 't4'],
+            relations=torch.rand(4, 4),
+            edge_labels=torch.randint(0, 4, (4, )))
+        gt_instances = InstanceData(**gt_instances_data)
+        kie_data_sample.gt_instances = gt_instances
+        self.assertIn('gt_instances', kie_data_sample)
+        self.assertTrue(
+            self._equal(kie_data_sample.gt_instances.bboxes,
+                        gt_instances_data['bboxes']))
+        self.assertTrue(
+            self._equal(kie_data_sample.gt_instances.labels,
+                        gt_instances_data['labels']))
+        self.assertTrue(
+            self._equal(kie_data_sample.gt_instances.texts,
+                        gt_instances_data['texts']))
+        self.assertTrue(
+            self._equal(kie_data_sample.gt_instances.relations,
+                        gt_instances_data['relations']))
+        self.assertTrue(
+            self._equal(kie_data_sample.gt_instances.edge_labels,
+                        gt_instances_data['edge_labels']))
+
+        # test pred_instances
+        pred_instances_data = dict(
+            bboxes=torch.rand(4, 4),
+            labels=torch.rand(4),
+            texts=['t1', 't2', 't3', 't4'],
+            relations=torch.rand(4, 4),
+            edge_labels=torch.randint(0, 4, (4, )))
+        pred_instances = InstanceData(**pred_instances_data)
+        kie_data_sample.pred_instances = pred_instances
+        assert 'pred_instances' in kie_data_sample
+        assert self._equal(kie_data_sample.pred_instances.bboxes,
+                           pred_instances_data['bboxes'])
+        assert self._equal(kie_data_sample.pred_instances.labels,
+                           pred_instances_data['labels'])
+        self.assertTrue(
+            self._equal(kie_data_sample.pred_instances.texts,
+                        pred_instances_data['texts']))
+        self.assertTrue(
+            self._equal(kie_data_sample.pred_instances.relations,
+                        pred_instances_data['relations']))
+        self.assertTrue(
+            self._equal(kie_data_sample.pred_instances.edge_labels,
+                        pred_instances_data['edge_labels']))
+
+        # test type error
+        with self.assertRaises(AssertionError):
+            kie_data_sample.gt_instances = torch.rand(2, 4)
+        with self.assertRaises(AssertionError):
+            kie_data_sample.pred_instances = torch.rand(2, 4)
+
+    def test_deleter(self):
+        gt_instances_data = dict(
+            bboxes=torch.rand(4, 4),
+            labels=torch.rand(4),
+        )
+
+        kie_data_sample = KIEDataSample()
+        gt_instances = InstanceData(data=gt_instances_data)
+        kie_data_sample.gt_instances = gt_instances
+        assert 'gt_instances' in kie_data_sample
+        del kie_data_sample.gt_instances
+        assert 'gt_instances' not in kie_data_sample
+
+        kie_data_sample.pred_instances = gt_instances
+        assert 'pred_instances' in kie_data_sample
+        del kie_data_sample.pred_instances
+        assert 'pred_instances' not in kie_data_sample
diff --git a/mmocr-dev-1.x/tests/test_structures/test_textdet_data_sample.py b/mmocr-dev-1.x/tests/test_structures/test_textdet_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..f5b79439bc9d7d0ff819155eeb40f84792b64a0c
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_structures/test_textdet_data_sample.py
@@ -0,0 +1,85 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.structures import TextDetDataSample
+
+
+class TestTextDetDataSample(TestCase):
+
+    def _equal(self, a, b):
+        if isinstance(a, (torch.Tensor, np.ndarray)):
+            return (a == b).all()
+        else:
+            return a == b
+
+    def test_init(self):
+        meta_info = dict(
+            img_size=[256, 256],
+            scale_factor=np.array([1.5, 1.5]),
+            img_shape=torch.rand(4))
+
+        det_data_sample = TextDetDataSample(metainfo=meta_info)
+        assert 'img_size' in det_data_sample
+
+        self.assertListEqual(det_data_sample.img_size, [256, 256])
+        self.assertListEqual(det_data_sample.get('img_size'), [256, 256])
+
+    def test_setter(self):
+        det_data_sample = TextDetDataSample()
+        # test gt_instances
+        gt_instances_data = dict(
+            bboxes=torch.rand(4, 4),
+            labels=torch.rand(4),
+            masks=np.random.rand(4, 2, 2))
+        gt_instances = InstanceData(**gt_instances_data)
+        det_data_sample.gt_instances = gt_instances
+        assert 'gt_instances' in det_data_sample
+        assert self._equal(det_data_sample.gt_instances.bboxes,
+                           gt_instances_data['bboxes'])
+        assert self._equal(det_data_sample.gt_instances.labels,
+                           gt_instances_data['labels'])
+        assert self._equal(det_data_sample.gt_instances.masks,
+                           gt_instances_data['masks'])
+
+        # test pred_instances
+        pred_instances_data = dict(
+            bboxes=torch.rand(2, 4),
+            labels=torch.rand(2),
+            masks=np.random.rand(2, 2, 2))
+        pred_instances = InstanceData(**pred_instances_data)
+        det_data_sample.pred_instances = pred_instances
+        assert 'pred_instances' in det_data_sample
+        assert self._equal(det_data_sample.pred_instances.bboxes,
+                           pred_instances_data['bboxes'])
+        assert self._equal(det_data_sample.pred_instances.labels,
+                           pred_instances_data['labels'])
+        assert self._equal(det_data_sample.pred_instances.masks,
+                           pred_instances_data['masks'])
+
+        # test type error
+        with self.assertRaises(AssertionError):
+            det_data_sample.gt_instances = torch.rand(2, 4)
+        with self.assertRaises(AssertionError):
+            det_data_sample.pred_instances = torch.rand(2, 4)
+
+    def test_deleter(self):
+        gt_instances_data = dict(
+            bboxes=torch.rand(4, 4),
+            labels=torch.rand(4),
+            masks=np.random.rand(4, 2, 2))
+
+        det_data_sample = TextDetDataSample()
+        gt_instances = InstanceData(data=gt_instances_data)
+        det_data_sample.gt_instances = gt_instances
+        assert 'gt_instances' in det_data_sample
+        del det_data_sample.gt_instances
+        assert 'gt_instances' not in det_data_sample
+
+        det_data_sample.pred_instances = gt_instances
+        assert 'pred_instances' in det_data_sample
+        del det_data_sample.pred_instances
+        assert 'pred_instances' not in det_data_sample
diff --git a/mmocr-dev-1.x/tests/test_structures/test_textrecog_data_sample.py b/mmocr-dev-1.x/tests/test_structures/test_textrecog_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..a489200c40051e891236b7477c0e3b15e9cab1f3
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_structures/test_textrecog_data_sample.py
@@ -0,0 +1,59 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import LabelData
+
+from mmocr.structures import TextRecogDataSample
+
+
+class TestTextRecogDataSample(TestCase):
+
+    def test_init(self):
+        meta_info = dict(
+            img_size=[256, 256],
+            scale_factor=np.array([1.5, 1.5]),
+            img_shape=torch.rand(4))
+
+        recog_data_sample = TextRecogDataSample(metainfo=meta_info)
+        assert 'img_size' in recog_data_sample
+
+        self.assertListEqual(recog_data_sample.img_size, [256, 256])
+        self.assertListEqual(recog_data_sample.get('img_size'), [256, 256])
+
+    def test_setter(self):
+        recog_data_sample = TextRecogDataSample()
+        # test gt_text
+        gt_label_data = dict(item='mmocr')
+        gt_text = LabelData(**gt_label_data)
+        recog_data_sample.gt_text = gt_text
+        assert 'gt_text' in recog_data_sample
+        self.assertEqual(recog_data_sample.gt_text.item, gt_text.item)
+
+        # test pred_text
+        pred_label_data = dict(item='mmocr')
+        pred_text = LabelData(**pred_label_data)
+        recog_data_sample.pred_text = pred_text
+        assert 'pred_text' in recog_data_sample
+        self.assertEqual(recog_data_sample.pred_text.item, pred_text.item)
+        # test type error
+        with self.assertRaises(AssertionError):
+            recog_data_sample.gt_text = torch.rand(2, 4)
+        with self.assertRaises(AssertionError):
+            recog_data_sample.pred_text = torch.rand(2, 4)
+
+    def test_deleter(self):
+        recog_data_sample = TextRecogDataSample()
+        # test gt_text
+        gt_label_data = dict(item='mmocr')
+        gt_text = LabelData(**gt_label_data)
+        recog_data_sample.gt_text = gt_text
+        assert 'gt_text' in recog_data_sample
+        del recog_data_sample.gt_text
+        assert 'gt_text' not in recog_data_sample
+
+        recog_data_sample.pred_text = gt_text
+        assert 'pred_text' in recog_data_sample
+        del recog_data_sample.pred_text
+        assert 'pred_text' not in recog_data_sample
diff --git a/mmocr-dev-1.x/tests/test_structures/test_textspotting_data_sample.py b/mmocr-dev-1.x/tests/test_structures/test_textspotting_data_sample.py
new file mode 100644
index 0000000000000000000000000000000000000000..2acf1fbb82731910cfe34a61e2c0831e99b888d0
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_structures/test_textspotting_data_sample.py
@@ -0,0 +1,85 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.structures import TextSpottingDataSample
+
+
+class TestTextSpottingDataSample(TestCase):
+
+    def _equal(self, a, b):
+        if isinstance(a, (torch.Tensor, np.ndarray)):
+            return (a == b).all()
+        else:
+            return a == b
+
+    def test_init(self):
+        meta_info = dict(
+            img_size=[256, 256],
+            scale_factor=np.array([1.5, 1.5]),
+            img_shape=torch.rand(4))
+
+        e2e_data_sample = TextSpottingDataSample(metainfo=meta_info)
+        assert 'img_size' in e2e_data_sample
+
+        self.assertListEqual(e2e_data_sample.img_size, [256, 256])
+        self.assertListEqual(e2e_data_sample.get('img_size'), [256, 256])
+
+    def test_setter(self):
+        e2e_data_sample = TextSpottingDataSample()
+        # test gt_instances
+        gt_instances_data = dict(
+            bboxes=torch.rand(4, 4),
+            labels=torch.rand(4),
+            masks=np.random.rand(4, 2, 2))
+        gt_instances = InstanceData(**gt_instances_data)
+        e2e_data_sample.gt_instances = gt_instances
+        assert 'gt_instances' in e2e_data_sample
+        assert self._equal(e2e_data_sample.gt_instances.bboxes,
+                           gt_instances_data['bboxes'])
+        assert self._equal(e2e_data_sample.gt_instances.labels,
+                           gt_instances_data['labels'])
+        assert self._equal(e2e_data_sample.gt_instances.masks,
+                           gt_instances_data['masks'])
+
+        # test pred_instances
+        pred_instances_data = dict(
+            bboxes=torch.rand(2, 4),
+            labels=torch.rand(2),
+            masks=np.random.rand(2, 2, 2))
+        pred_instances = InstanceData(**pred_instances_data)
+        e2e_data_sample.pred_instances = pred_instances
+        assert 'pred_instances' in e2e_data_sample
+        assert self._equal(e2e_data_sample.pred_instances.bboxes,
+                           pred_instances_data['bboxes'])
+        assert self._equal(e2e_data_sample.pred_instances.labels,
+                           pred_instances_data['labels'])
+        assert self._equal(e2e_data_sample.pred_instances.masks,
+                           pred_instances_data['masks'])
+
+        # test type error
+        with self.assertRaises(AssertionError):
+            e2e_data_sample.gt_instances = torch.rand(2, 4)
+        with self.assertRaises(AssertionError):
+            e2e_data_sample.pred_instances = torch.rand(2, 4)
+
+    def test_deleter(self):
+        gt_instances_data = dict(
+            bboxes=torch.rand(4, 4),
+            labels=torch.rand(4),
+            masks=np.random.rand(4, 2, 2))
+
+        e2e_data_sample = TextSpottingDataSample()
+        gt_instances = InstanceData(data=gt_instances_data)
+        e2e_data_sample.gt_instances = gt_instances
+        assert 'gt_instances' in e2e_data_sample
+        del e2e_data_sample.gt_instances
+        assert 'gt_instances' not in e2e_data_sample
+
+        e2e_data_sample.pred_instances = gt_instances
+        assert 'pred_instances' in e2e_data_sample
+        del e2e_data_sample.pred_instances
+        assert 'pred_instances' not in e2e_data_sample
diff --git a/mmocr-dev-1.x/tests/test_utils/test_bbox_utils.py b/mmocr-dev-1.x/tests/test_utils/test_bbox_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..0511fdd81d90273d9309731eed932653a20dd449
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_bbox_utils.py
@@ -0,0 +1,266 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+
+from mmocr.utils import (bbox2poly, bbox_center_distance, bbox_diag_distance,
+                         bezier2polygon, is_on_same_line, rescale_bbox,
+                         rescale_bboxes, stitch_boxes_into_lines)
+from mmocr.utils.bbox_utils import bbox_jitter
+
+
+class TestBbox2poly(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.box_array = np.array([1, 1, 2, 2])
+        self.box_list = [1, 1, 2, 2]
+        self.box_tensor = torch.tensor([1, 1, 2, 2])
+        self.gt_xyxy = np.array([1, 1, 2, 1, 2, 2, 1, 2])
+        self.gt_xywh = np.array([1, 1, 3, 1, 3, 3, 1, 3])
+
+    def test_bbox2poly(self):
+        # mode: xyxy
+        # test np.array
+        self.assertTrue(
+            np.array_equal(bbox2poly(self.box_array), self.gt_xyxy))
+        # test list
+        self.assertTrue(np.array_equal(bbox2poly(self.box_list), self.gt_xyxy))
+        # test tensor
+        self.assertTrue(
+            np.array_equal(bbox2poly(self.box_tensor), self.gt_xyxy))
+
+        # mode: xywh
+        # test np.array
+        self.assertTrue(
+            np.array_equal(
+                bbox2poly(self.box_array, mode='xywh'), self.gt_xywh))
+        # test list
+        self.assertTrue(
+            np.array_equal(
+                bbox2poly(self.box_list, mode='xywh'), self.gt_xywh))
+        # test tensor
+        self.assertTrue(
+            np.array_equal(
+                bbox2poly(self.box_tensor, mode='xywh'), self.gt_xywh))
+
+        # invalid mode
+        with self.assertRaises(NotImplementedError):
+            bbox2poly(self.box_tensor, mode='a')
+
+
+class TestBoxCenterDistance(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.box1_list = [1, 1, 3, 3]
+        self.box2_list = [2, 2, 4, 2]
+        self.box1_array = np.array([1, 1, 3, 3])
+        self.box2_array = np.array([2, 2, 4, 2])
+        self.box1_tensor = torch.tensor([1, 1, 3, 3])
+        self.box2_tensor = torch.tensor([2, 2, 4, 2])
+        self.gt = 1
+
+    def test_box_center_distance(self):
+        # test list
+        self.assertEqual(
+            bbox_center_distance(self.box1_list, self.box2_list), self.gt)
+        # test np.array
+        self.assertEqual(
+            bbox_center_distance(self.box1_array, self.box2_array), self.gt)
+        # test tensor
+        self.assertEqual(
+            bbox_center_distance(self.box1_tensor, self.box2_tensor), self.gt)
+
+
+class TestBoxDiagDistance(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.box_list1 = [0, 0, 1, 1, 0, 10, -10, 0]
+        self.box_array1 = np.array(self.box_list1)
+        self.box_tensor1 = torch.tensor(self.box_list1)
+        self.gt1 = 10
+        self.box_list2 = [0, 0, 1, 1]
+        self.box_array2 = np.array(self.box_list2)
+        self.box_tensor2 = torch.tensor(self.box_list2)
+        self.gt2 = np.sqrt(2)
+
+    def test_bbox_diag_distance(self):
+        # quad [x1, y1, x2, y2, x3, y3, x4, y4]
+        # list
+        self.assertEqual(bbox_diag_distance(self.box_list1), self.gt1)
+        # array
+        self.assertEqual(bbox_diag_distance(self.box_array1), self.gt1)
+        # tensor
+        self.assertEqual(bbox_diag_distance(self.box_tensor1), self.gt1)
+        # rect [x1, y1, x2, y2]
+        # list
+        self.assertAlmostEqual(bbox_diag_distance(self.box_list2), self.gt2)
+        # array
+        self.assertAlmostEqual(bbox_diag_distance(self.box_array2), self.gt2)
+        # tensor
+        self.assertAlmostEqual(bbox_diag_distance(self.box_tensor2), self.gt2)
+
+
+class TestBezier2Polygon(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.bezier_points1 = [
+            37.0, 249.0, 72.5, 229.55, 95.34, 220.65, 134.0, 216.0, 132.0,
+            233.0, 82.11, 240.2, 72.46, 247.16, 38.0, 263.0
+        ]
+        self.gt1 = np.array([[37.0, 249.0],
+                             [42.50420761043885, 246.01570199737577],
+                             [47.82291296107305, 243.2012392477038],
+                             [52.98102930456334, 240.5511007435486],
+                             [58.00346989357049, 238.05977547747486],
+                             [62.91514798075522, 235.721752442047],
+                             [67.74097681877824, 233.53152062982943],
+                             [72.50586966030032, 231.48356903338674],
+                             [77.23473975798221, 229.57238664528356],
+                             [81.95250036448464, 227.79246245808432],
+                             [86.68406473246829, 226.13828546435346],
+                             [91.45434611459396, 224.60434465665548],
+                             [96.28825776352238, 223.18512902755504],
+                             [101.21071293191426, 221.87512756961655],
+                             [106.24662487243039, 220.6688292754046],
+                             [111.42090683773145, 219.5607231374836],
+                             [116.75847208047819, 218.5452981484181],
+                             [122.28423385333137, 217.6170433007727],
+                             [128.02310540895172, 216.77044758711182],
+                             [134.0, 216.0], [132.0, 233.0],
+                             [124.4475521213005, 234.13617728531858],
+                             [117.50700976818779, 235.2763434903047],
+                             [111.12146960198277, 236.42847645429362],
+                             [105.2340282840064, 237.6005540166205],
+                             [99.78778247557953, 238.80055401662054],
+                             [94.72582883802303, 240.0364542936288],
+                             [89.99126403265781, 241.31623268698053],
+                             [85.52718472080478, 242.64786703601104],
+                             [81.27668756378483, 244.03933518005545],
+                             [77.1828692229188, 245.49861495844874],
+                             [73.18882635952762, 247.0336842105263],
+                             [69.23765563493221, 248.65252077562326],
+                             [65.27245371045342, 250.3631024930748],
+                             [61.23631724741216, 252.17340720221605],
+                             [57.07234290712931, 254.09141274238226],
+                             [52.723627350925796, 256.12509695290856],
+                             [48.13326724012247, 258.2824376731302],
+                             [43.24435923604024, 260.5714127423822],
+                             [38.0, 263.0]])
+        self.bezier_points2 = [0, 0, 0, 1, 0, 2, 0, 3, 1, 0, 1, 1, 1, 2, 1, 3]
+        self.gt2 = np.array([[0, 0], [0, 1.5], [0, 3], [1, 0], [1, 1.5],
+                             [1, 3]])
+        self.invalid_input = [0, 1]
+
+    def test_bezier2polygon(self):
+        self.assertTrue(
+            np.allclose(bezier2polygon(self.bezier_points1), self.gt1))
+        with self.assertRaises(AssertionError):
+            bezier2polygon(self.bezier_points2, num_sample=-1)
+        with self.assertRaises(AssertionError):
+            bezier2polygon(self.invalid_input, num_sample=-1)
+
+
+class TestBboxJitter(unittest.TestCase):
+
+    def test_bbox_jitter(self):
+        dummy_points_x = [20, 120, 120, 20]
+        dummy_points_y = [20, 20, 40, 40]
+
+        kwargs = dict(jitter_ratio_x=0.0, jitter_ratio_y=0.0)
+
+        with self.assertRaises(AssertionError):
+            bbox_jitter([], dummy_points_y)
+        with self.assertRaises(AssertionError):
+            bbox_jitter(dummy_points_x, [])
+        with self.assertRaises(AssertionError):
+            bbox_jitter(dummy_points_x, dummy_points_y, jitter_ratio_x=1.)
+        with self.assertRaises(AssertionError):
+            bbox_jitter(dummy_points_x, dummy_points_y, jitter_ratio_y=1.)
+
+        bbox_jitter(dummy_points_x, dummy_points_y, **kwargs)
+
+        assert np.allclose(dummy_points_x, [20, 120, 120, 20])
+        assert np.allclose(dummy_points_y, [20, 20, 40, 40])
+
+
+class TestIsOnSameLine(unittest.TestCase):
+
+    def test_box_on_line(self):
+        # regular boxes
+        box1 = [0, 0, 1, 0, 1, 1, 0, 1]
+        box2 = [2, 0.5, 3, 0.5, 3, 1.5, 2, 1.5]
+        box3 = [4, 0.8, 5, 0.8, 5, 1.8, 4, 1.8]
+        self.assertTrue(is_on_same_line(box1, box2, 0.5))
+        self.assertFalse(is_on_same_line(box1, box3, 0.5))
+
+        # irregular box4
+        box4 = [0, 0, 1, 1, 1, 2, 0, 1]
+        box5 = [2, 1.5, 3, 1.5, 3, 2.5, 2, 2.5]
+        box6 = [2, 1.6, 3, 1.6, 3, 2.6, 2, 2.6]
+        self.assertTrue(is_on_same_line(box4, box5, 0.5))
+        self.assertFalse(is_on_same_line(box4, box6, 0.5))
+
+
+class TestStitchBoxesIntoLines(unittest.TestCase):
+
+    def test_stitch_boxes_into_lines(self):
+        boxes = [  # regular boxes
+            [0, 0, 1, 0, 1, 1, 0, 1],
+            [2, 0.5, 3, 0.5, 3, 1.5, 2, 1.5],
+            [3, 1.2, 4, 1.2, 4, 2.2, 3, 2.2],
+            [5, 0.5, 6, 0.5, 6, 1.5, 5, 1.5],
+            # irregular box
+            [6, 1.5, 7, 1.25, 7, 1.75, 6, 1.75]
+        ]
+        raw_input = [{
+            'box': boxes[i],
+            'text': str(i)
+        } for i in range(len(boxes))]
+        result = stitch_boxes_into_lines(raw_input, 1, 0.5)
+        # Final lines: [0, 1], [2], [3, 4]
+        # box 0, 1, 3, 4 are on the same line but box 3 is 2 pixels away from
+        # box 1
+        # box 3 and 4 are on the same line since the length of overlapping part
+        # >= 0.5 * the y-axis length of box 5
+        expected_result = [{
+            'box': [0, 0, 3, 0, 3, 1.5, 0, 1.5],
+            'text': '0 1'
+        }, {
+            'box': [3, 1.2, 4, 1.2, 4, 2.2, 3, 2.2],
+            'text': '2'
+        }, {
+            'box': [5, 0.5, 7, 0.5, 7, 1.75, 5, 1.75],
+            'text': '3 4'
+        }]
+        result.sort(key=lambda x: x['box'][0])
+        expected_result.sort(key=lambda x: x['box'][0])
+        self.assertEqual(result, expected_result)
+
+
+class TestRescaleBbox(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.bbox = np.array([0, 0, 1, 1])
+        self.bboxes = np.array([[0, 0, 1, 1], [1, 1, 2, 2]])
+        self.scale = 2
+
+    def test_rescale_bbox(self):
+        # mul
+        rescaled_bbox = rescale_bbox(self.bbox, self.scale, mode='mul')
+        self.assertTrue(np.allclose(rescaled_bbox, np.array([0, 0, 2, 2])))
+        # div
+        rescaled_bbox = rescale_bbox(self.bbox, self.scale, mode='div')
+        self.assertTrue(np.allclose(rescaled_bbox, np.array([0, 0, 0.5, 0.5])))
+
+    def test_rescale_bboxes(self):
+        # mul
+        rescaled_bboxes = rescale_bboxes(self.bboxes, self.scale, mode='mul')
+        self.assertTrue(
+            np.allclose(rescaled_bboxes, np.array([[0, 0, 2, 2], [2, 2, 4,
+                                                                  4]])))
+        # div
+        rescaled_bboxes = rescale_bboxes(self.bboxes, self.scale, mode='div')
+        self.assertTrue(
+            np.allclose(rescaled_bboxes,
+                        np.array([[0, 0, 0.5, 0.5], [0.5, 0.5, 1, 1]])))
diff --git a/mmocr-dev-1.x/tests/test_utils/test_check_argument.py b/mmocr-dev-1.x/tests/test_utils/test_check_argument.py
new file mode 100644
index 0000000000000000000000000000000000000000..7166440b6327d4c3031418f8d6e6bb539150b129
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_check_argument.py
@@ -0,0 +1,54 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import numpy as np
+
+import mmocr.utils as utils
+
+
+def test_is_3dlist():
+
+    assert utils.is_3dlist([])
+    assert utils.is_3dlist([[]])
+    assert utils.is_3dlist([[[]]])
+    assert utils.is_3dlist([[[1]]])
+    assert not utils.is_3dlist([[1, 2]])
+    assert not utils.is_3dlist([[np.array([1, 2])]])
+
+
+def test_is_2dlist():
+
+    assert utils.is_2dlist([])
+    assert utils.is_2dlist([[]])
+    assert utils.is_2dlist([[1]])
+
+
+def test_is_type_list():
+    assert utils.is_type_list([], int)
+    assert utils.is_type_list([], float)
+    assert utils.is_type_list([np.array([])], np.ndarray)
+    assert utils.is_type_list([1], int)
+    assert utils.is_type_list(['str'], str)
+
+
+def test_is_none_or_type():
+
+    assert utils.is_none_or_type(None, int)
+    assert utils.is_none_or_type(1.0, float)
+    assert utils.is_none_or_type(np.ndarray([]), np.ndarray)
+    assert utils.is_none_or_type(1, int)
+    assert utils.is_none_or_type('str', str)
+
+
+def test_valid_boundary():
+
+    x = [0, 0, 1, 0, 1, 1, 0, 1]
+    assert not utils.valid_boundary(x, True)
+    assert not utils.valid_boundary([0])
+    assert utils.valid_boundary(x, False)
+    x = [0, 0, 1, 0, 1, 1, 0, 1, 1]
+    assert utils.valid_boundary(x, True)
+
+
+def test_equal_len():
+
+    assert utils.equal_len([1, 2, 3], [1, 2, 3])
+    assert not utils.equal_len([1, 2, 3], [1, 2, 3, 4])
diff --git a/mmocr-dev-1.x/tests/test_utils/test_data_converter_utils.py b/mmocr-dev-1.x/tests/test_utils/test_data_converter_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..eb258ef53c0b08da0261f74d6ee1117bdec970e4
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_data_converter_utils.py
@@ -0,0 +1,163 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+from unittest import TestCase
+
+import mmengine
+
+from mmocr.utils.data_converter_utils import (dump_ocr_data,
+                                              recog_anno_to_imginfo)
+
+
+class TestDataConverterUtils(TestCase):
+
+    def _create_dummy_data(self):
+        img_info = dict(
+            file_name='test.jpg', height=100, width=200, segm_file='seg.txt')
+        anno_info = [
+            dict(
+                iscrowd=0,
+                category_id=0,
+                bbox=[0, 0, 10, 20],  # x, y, w, h
+                text='t1',
+                segmentation=[0, 0, 0, 10, 10, 20, 20, 0]),
+            dict(
+                iscrowd=1,
+                category_id=0,
+                bbox=[10, 10, 20, 20],  # x, y, w, h
+                text='t2',
+                segmentation=[10, 10, 10, 30, 30, 30, 30, 10]),
+        ]
+        img_info['anno_info'] = anno_info
+        img_infos = [img_info]
+
+        det_target = {
+            'metainfo': {
+                'dataset_type': 'TextDetDataset',
+                'task_name': 'textdet',
+                'category': [{
+                    'id': 0,
+                    'name': 'text'
+                }],
+            },
+            'data_list': [{
+                'img_path':
+                'test.jpg',
+                'height':
+                100,
+                'width':
+                200,
+                'seg_map':
+                'seg.txt',
+                'instances': [
+                    {
+                        'bbox': [0, 0, 10, 20],
+                        'bbox_label': 0,
+                        'polygon': [0, 0, 0, 10, 10, 20, 20, 0],
+                        'ignore': False
+                    },
+                    {
+                        'bbox': [10, 10, 30, 30],  # x1, y1, x2, y2
+                        'bbox_label': 0,
+                        'polygon': [10, 10, 10, 30, 30, 30, 30, 10],
+                        'ignore': True
+                    }
+                ]
+            }]
+        }
+
+        spotter_target = {
+            'metainfo': {
+                'dataset_type': 'TextSpotterDataset',
+                'task_name': 'textspotter',
+                'category': [{
+                    'id': 0,
+                    'name': 'text'
+                }],
+            },
+            'data_list': [{
+                'img_path':
+                'test.jpg',
+                'height':
+                100,
+                'width':
+                200,
+                'seg_map':
+                'seg.txt',
+                'instances': [
+                    {
+                        'bbox': [0, 0, 10, 20],
+                        'bbox_label': 0,
+                        'polygon': [0, 0, 0, 10, 10, 20, 20, 0],
+                        'text': 't1',
+                        'ignore': False
+                    },
+                    {
+                        'bbox': [10, 10, 30, 30],  # x1, y1, x2, y2
+                        'bbox_label': 0,
+                        'polygon': [10, 10, 10, 30, 30, 30, 30, 10],
+                        'text': 't2',
+                        'ignore': True
+                    }
+                ]
+            }]
+        }
+
+        recog_target = {
+            'metainfo': {
+                'dataset_type': 'TextRecogDataset',
+                'task_name': 'textrecog',
+            },
+            'data_list': [{
+                'img_path': 'test.jpg',
+                'instances': [{
+                    'text': 't1',
+                }, {
+                    'text': 't2',
+                }]
+            }]
+        }
+
+        return img_infos, det_target, spotter_target, recog_target
+
+    def test_dump_ocr_data(self):
+        with tempfile.TemporaryDirectory() as tmpdir:
+            output_path = osp.join(tmpdir, 'ocr.json')
+            input_data, det_target, spotter_target, recog_target = \
+                self._create_dummy_data()
+
+            dump_ocr_data(input_data, output_path, 'textdet')
+            result = mmengine.load(output_path)
+            self.assertDictEqual(result, det_target)
+
+            dump_ocr_data(input_data, output_path, 'textspotter')
+            result = mmengine.load(output_path)
+            self.assertDictEqual(result, spotter_target)
+
+            dump_ocr_data(input_data, output_path, 'textrecog')
+            result = mmengine.load(output_path)
+            self.assertDictEqual(result, recog_target)
+
+    def test_recog_anno_to_imginfo(self):
+        file_paths = ['a.jpg', 'b.jpg']
+        labels = ['aaa']
+        with self.assertRaises(AssertionError):
+            recog_anno_to_imginfo(file_paths, labels)
+
+        file_paths = ['a.jpg', 'b.jpg']
+        labels = ['aaa', 'bbb']
+        target = [
+            {
+                'file_name': 'a.jpg',
+                'anno_info': [{
+                    'text': 'aaa'
+                }]
+            },
+            {
+                'file_name': 'b.jpg',
+                'anno_info': [{
+                    'text': 'bbb'
+                }]
+            },
+        ]
+        self.assertListEqual(target, recog_anno_to_imginfo(file_paths, labels))
diff --git a/mmocr-dev-1.x/tests/test_utils/test_fileio.py b/mmocr-dev-1.x/tests/test_utils/test_fileio.py
new file mode 100644
index 0000000000000000000000000000000000000000..9505fe57955d7f00ce3507f974d6e71a5a018d2d
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_fileio.py
@@ -0,0 +1,180 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+import os
+import tempfile
+import unittest
+
+from mmocr.utils import (check_integrity, get_md5, is_archive, list_files,
+                         list_from_file, list_to_file)
+
+lists = [
+    [],
+    [' '],
+    ['\t'],
+    ['a'],
+    [1],
+    [1.],
+    ['a', 'b'],
+    ['a', 1, 1.],
+    [1, 1., 'a'],
+    ['啊', '啊啊'],
+    ['選択', 'noël', 'Информацией', 'ÄÆä'],
+]
+
+dicts = [
+    [{
+        'text': []
+    }],
+    [{
+        'text': [' ']
+    }],
+    [{
+        'text': ['\t']
+    }],
+    [{
+        'text': ['a']
+    }],
+    [{
+        'text': [1]
+    }],
+    [{
+        'text': [1.]
+    }],
+    [{
+        'text': ['a', 'b']
+    }],
+    [{
+        'text': ['a', 1, 1.]
+    }],
+    [{
+        'text': [1, 1., 'a']
+    }],
+    [{
+        'text': ['啊', '啊啊']
+    }],
+    [{
+        'text': ['選択', 'noël', 'Информацией', 'ÄÆä']
+    }],
+]
+
+
+def test_list_to_file():
+    with tempfile.TemporaryDirectory() as tmpdirname:
+        # test txt
+        for i, lines in enumerate(lists):
+            filename = f'{tmpdirname}/{i}.txt'
+            list_to_file(filename, lines)
+            lines2 = [
+                line.rstrip('\r\n')
+                for line in open(filename, encoding='utf-8').readlines()
+            ]
+            lines = list(map(str, lines))
+            assert len(lines) == len(lines2)
+            assert all(line1 == line2 for line1, line2 in zip(lines, lines2))
+        # test jsonl
+        for i, lines in enumerate(dicts):
+            filename = f'{tmpdirname}/{i}.jsonl'
+            list_to_file(filename, [json.dumps(line) for line in lines])
+            lines2 = [
+                json.loads(line.rstrip('\r\n'))['text']
+                for line in open(filename, encoding='utf-8').readlines()
+            ][0]
+
+            lines = list(lines[0]['text'])
+            assert len(lines) == len(lines2)
+            assert all(line1 == line2 for line1, line2 in zip(lines, lines2))
+
+
+def test_list_from_file():
+    with tempfile.TemporaryDirectory() as tmpdirname:
+        # test txt file
+        for i, lines in enumerate(lists):
+            filename = f'{tmpdirname}/{i}.txt'
+            with open(filename, 'w', encoding='utf-8') as f:
+                f.writelines(f'{line}\n' for line in lines)
+            lines2 = list_from_file(filename, encoding='utf-8')
+            lines = list(map(str, lines))
+            assert len(lines) == len(lines2)
+            assert all(line1 == line2 for line1, line2 in zip(lines, lines2))
+        # test jsonl file
+        for i, lines in enumerate(dicts):
+            filename = f'{tmpdirname}/{i}.jsonl'
+            with open(filename, 'w', encoding='utf-8') as f:
+                f.writelines(f'{line}\n' for line in lines)
+            lines2 = list_from_file(filename, encoding='utf-8')
+            lines = list(map(str, lines))
+            assert len(lines) == len(lines2)
+            assert all(line1 == line2 for line1, line2 in zip(lines, lines2))
+
+
+class TestIsArchive(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.zip = 'data/annotations_123.zip'
+        self.tar = 'data/img.abc.tar'
+        self.targz = 'data/img12345_.tar.gz'
+        self.rar = '/m/abc/t.rar'
+        self.dir = '/a/b/c/'
+
+    def test_is_archive(self):
+        # test zip
+        self.assertTrue(is_archive(self.zip))
+        # test tar
+        self.assertTrue(is_archive(self.tar))
+        # test tar.gz
+        self.assertTrue(is_archive(self.targz))
+        # test rar
+        self.assertFalse(is_archive(self.rar))
+        # test dir
+        self.assertFalse(is_archive(self.dir))
+
+
+class TestCheckIntegrity(unittest.TestCase):
+
+    def setUp(self) -> None:
+        # Do not use text files for tests, because the md5 value of text files
+        # is different on different platforms (CR - CRLF)
+        self.file1 = ('tests/data/det_toy_dataset/imgs/test/img_2.jpg',
+                      '52b28b5dfc92d9027e70ec3ff95d8702')
+        self.file2 = ('tests/data/det_toy_dataset/imgs/test/img_1.jpg',
+                      'abc123')
+        self.file3 = ('abc/abc.jpg', 'abc123')
+
+    def test_check_integrity(self):
+        file, md5 = self.file1
+        self.assertTrue(check_integrity(file, md5))
+        file, md5 = self.file2
+        self.assertFalse(check_integrity(file, md5))
+        self.assertTrue(check_integrity(file, None))
+        file, md5 = self.file3
+        self.assertFalse(check_integrity(file, md5))
+
+
+class TextGetMD5(unittest.TestCase):
+
+    def setUp(self) -> None:
+        # Do not use text files for tests, because the md5 value of text files
+        # is different on different platforms (CR - CRLF)
+        self.file1 = ('tests/data/det_toy_dataset/imgs/test/img_2.jpg',
+                      '52b28b5dfc92d9027e70ec3ff95d8702')
+        self.file2 = ('tests/data/det_toy_dataset/imgs/test/img_1.jpg',
+                      'abc123')
+
+    def test_get_md5(self):
+        file, md5 = self.file1
+        self.assertEqual(get_md5(file), md5)
+        file, md5 = self.file2
+        self.assertNotEqual(get_md5(file), md5)
+
+
+class TestListFiles(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.path = 'tests/data/det_toy_dataset/imgs/test'
+
+    def test_check_integrity(self):
+        suffix = 'jpg'
+        files = list_files(self.path, suffix)
+        for file in os.listdir(self.path):
+            if file.endswith(suffix):
+                self.assertIn(os.path.join(self.path, file), files)
diff --git a/mmocr-dev-1.x/tests/test_utils/test_img_utils.py b/mmocr-dev-1.x/tests/test_utils/test_img_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..f6dc5fecb5ac48ff1e832a71de0aa34acca057ad
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_img_utils.py
@@ -0,0 +1,46 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+
+from mmocr.utils import crop_img, warp_img
+
+
+class TestImgUtils(unittest.TestCase):
+
+    def test_warp_img(self):
+        dummy_img = np.ones((600, 600, 3), dtype=np.uint8)
+        dummy_box = [20, 20, 120, 20, 120, 40, 20, 40]
+
+        cropped_img = warp_img(dummy_img, dummy_box)
+
+        with self.assertRaises(AssertionError):
+            warp_img(dummy_img, [])
+        with self.assertRaises(AssertionError):
+            warp_img(dummy_img, [20, 40, 40, 20])
+
+        self.assertAlmostEqual(cropped_img.shape[0], 20)
+        self.assertAlmostEqual(cropped_img.shape[1], 100)
+
+    def test_min_rect_crop(self):
+        dummy_img = np.ones((600, 600, 3), dtype=np.uint8)
+        dummy_box = [20, 20, 120, 20, 120, 40, 20, 40]
+
+        cropped_img = crop_img(
+            dummy_img,
+            dummy_box,
+            0.,
+            0.,
+        )
+
+        with self.assertRaises(AssertionError):
+            crop_img(dummy_img, [])
+        with self.assertRaises(AssertionError):
+            crop_img(dummy_img, [20, 40, 40, 20])
+        with self.assertRaises(AssertionError):
+            crop_img(dummy_img, dummy_box, 4, 0.2)
+        with self.assertRaises(AssertionError):
+            crop_img(dummy_img, dummy_box, 0.4, 1.2)
+
+        self.assertAlmostEqual(cropped_img.shape[0], 20)
+        self.assertAlmostEqual(cropped_img.shape[1], 100)
diff --git a/mmocr-dev-1.x/tests/test_utils/test_mask_utils.py b/mmocr-dev-1.x/tests/test_utils/test_mask_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..a325a9e7e11e806bbfc75cce62ef7debcd5c3632
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_mask_utils.py
@@ -0,0 +1,23 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+
+from mmocr.utils import fill_hole
+
+
+class TestFillHole(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.input_mask_list = [[0, 1, 1, 1, 0], [0, 1, 0, 1, 0],
+                                [0, 1, 1, 1, 0]]
+        self.input_mask_array = np.array(self.input_mask_list)
+        self.input_mask_tensor = torch.tensor(self.input_mask_list)
+        self.gt = np.array([[0, 1, 1, 1, 0], [0, 1, 1, 1, 0], [0, 1, 1, 1, 0]])
+
+    def test_fill_hole(self):
+        self.assertTrue(np.allclose(fill_hole(self.input_mask_list), self.gt))
+        self.assertTrue(np.allclose(fill_hole(self.input_mask_array), self.gt))
+        self.assertTrue(
+            np.allclose(fill_hole(self.input_mask_tensor), self.gt))
diff --git a/mmocr-dev-1.x/tests/test_utils/test_parsers.py b/mmocr-dev-1.x/tests/test_utils/test_parsers.py
new file mode 100644
index 0000000000000000000000000000000000000000..abdd7c9446c177b7bc89b41f64f0b557c96203f3
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_parsers.py
@@ -0,0 +1,34 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import json
+from unittest import TestCase
+
+from mmocr.utils import LineJsonParser, LineStrParser
+
+
+class TestParser(TestCase):
+
+    def test_line_json_parser(self):
+        parser = LineJsonParser()
+        line = json.dumps(dict(filename='test.jpg', text='mmocr'))
+        data = parser(line)
+        self.assertEqual(data['filename'], 'test.jpg')
+        self.assertEqual(data['text'], 'mmocr')
+
+    def test_line_str_parser(self):
+        parser = LineStrParser()
+        line = 'test.jpg mmocr'
+        data = parser(line)
+        self.assertEqual(data['filename'], 'test.jpg')
+        self.assertEqual(data['text'], 'mmocr')
+
+        # warnings
+        line = 'test test test'
+        msg = 'More than two blank spaces were detected. '
+        msg += 'Please use LineJsonParser to handle '
+        msg += 'annotations with blanks. '
+        msg += 'Check Doc '
+        msg += 'https://mmocr.readthedocs.io/en/latest/'
+        msg += 'tutorials/blank_recog.html '
+        msg += 'for details.'
+        data = parser(line)
+        self.assertWarnsRegex(UserWarning, msg)
diff --git a/mmocr-dev-1.x/tests/test_utils/test_point_utils.py b/mmocr-dev-1.x/tests/test_utils/test_point_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..343ebb5a059c8dc074868bfeccd40fc45c2c0ea8
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_point_utils.py
@@ -0,0 +1,55 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+import numpy as np
+import torch
+
+from mmocr.utils import point_distance, points_center
+
+
+class TestPointDistance(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.p1_list = [1, 2]
+        self.p2_list = [2, 2]
+        self.p1_array = np.array([1, 2])
+        self.p2_array = np.array([2, 2])
+        self.p1_tensor = torch.Tensor([1, 2])
+        self.p2_tensor = torch.Tensor([2, 2])
+        self.invalid_p = [1, 2, 3]
+
+    def test_point_distance(self):
+        # list
+        self.assertEqual(point_distance(self.p1_list, self.p2_list), 1)
+        self.assertEqual(point_distance(self.p1_list, self.p1_list), 0)
+        # array
+        self.assertEqual(point_distance(self.p1_array, self.p2_array), 1)
+        self.assertEqual(point_distance(self.p1_array, self.p1_array), 0)
+        # tensor
+        self.assertEqual(point_distance(self.p1_tensor, self.p2_tensor), 1)
+        self.assertEqual(point_distance(self.p1_tensor, self.p1_tensor), 0)
+        with self.assertRaises(AssertionError):
+            point_distance(self.invalid_p, self.invalid_p)
+
+
+class TestPointCenter(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.point_list = [1, 2, 3, 4]
+        self.point_nparray = np.array([1, 2, 3, 4])
+        self.point_tensor = torch.Tensor([1, 2, 3, 4])
+        self.incorrect_input = [1, 3, 4]
+        self.gt = np.array([2, 3])
+
+    def test_point_center(self):
+        # list
+        self.assertTrue(
+            np.array_equal(points_center(self.point_list), self.gt))
+        # array
+        self.assertTrue(
+            np.array_equal(points_center(self.point_nparray), self.gt))
+        # tensor
+        self.assertTrue(
+            np.array_equal(points_center(self.point_tensor), self.gt))
+        with self.assertRaises(AssertionError):
+            points_center(self.incorrect_input)
diff --git a/mmocr-dev-1.x/tests/test_utils/test_polygon_utils.py b/mmocr-dev-1.x/tests/test_utils/test_polygon_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..8cbd4f899371d0c3a904014aad9ce7523c15fdf2
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_polygon_utils.py
@@ -0,0 +1,403 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+from itertools import chain, permutations
+
+import numpy as np
+import torch
+from shapely.geometry import MultiPolygon, Polygon
+
+from mmocr.utils import (boundary_iou, crop_polygon, offset_polygon, poly2bbox,
+                         poly2shapely, poly_intersection, poly_iou,
+                         poly_make_valid, poly_union, polys2shapely,
+                         rescale_polygon, rescale_polygons, shapely2poly,
+                         sort_points, sort_vertex, sort_vertex8)
+
+
+class TestPolygonUtils(unittest.TestCase):
+
+    def test_crop_polygon(self):
+        # polygon cross box
+        polygon = np.array([20., -10., 40., 10., 10., 40., -10., 20.])
+        crop_box = np.array([0., 0., 60., 60.])
+        target_poly_cropped = np.array(
+            [10, 40, 0, 30, 0, 10, 10, 0, 30, 0, 40, 10])
+        poly_cropped = crop_polygon(polygon, crop_box)
+        self.assertTrue(
+            poly2shapely(poly_cropped).equals(
+                poly2shapely(target_poly_cropped)))
+
+        # polygon inside box
+        polygon = np.array([0., 0., 30., 0., 30., 30., 0., 30.])
+        crop_box = np.array([0., 0., 60., 60.])
+        target_poly_cropped = polygon
+        poly_cropped = crop_polygon(polygon, crop_box)
+        self.assertTrue(
+            poly2shapely(poly_cropped).equals(
+                poly2shapely(target_poly_cropped)))
+
+        # polygon outside box
+        polygon = np.array([0., 0., 30., 0., 30., 30., 0., 30.])
+        crop_box = np.array([80., 80., 90., 90.])
+        poly_cropped = crop_polygon(polygon, crop_box)
+        self.assertEqual(poly_cropped, None)
+
+        # polygon and box are overlapped at a point
+        polygon = np.array([0., 0., 10., 0., 10., 10., 0., 10.])
+        crop_box = np.array([10., 10., 20., 20.])
+        poly_cropped = crop_polygon(polygon, crop_box)
+        self.assertEqual(poly_cropped, None)
+
+    def test_rescale_polygon(self):
+        scale_factor = (0.3, 0.4)
+
+        with self.assertRaises(AssertionError):
+            polygons = [0, 0, 1, 0, 1, 1, 0]
+            rescale_polygon(polygons, scale_factor)
+
+        polygons = [0, 0, 1, 0, 1, 1, 0, 1]
+        self.assertTrue(
+            np.allclose(
+                rescale_polygon(polygons, scale_factor, mode='div'),
+                np.array([0, 0, 1 / 0.3, 0, 1 / 0.3, 1 / 0.4, 0, 1 / 0.4])))
+        self.assertTrue(
+            np.allclose(
+                rescale_polygon(polygons, scale_factor, mode='mul'),
+                np.array([0, 0, 0.3, 0, 0.3, 0.4, 0, 0.4])))
+
+    def test_rescale_polygons(self):
+        polygons = [
+            np.array([0, 0, 1, 0, 1, 1, 0, 1]),
+            np.array([1, 1, 2, 1, 2, 2, 1, 2])
+        ]
+        scale_factor = (0.5, 0.5)
+        self.assertTrue(
+            np.allclose(
+                rescale_polygons(polygons, scale_factor, mode='div'), [
+                    np.array([0, 0, 2, 0, 2, 2, 0, 2]),
+                    np.array([2, 2, 4, 2, 4, 4, 2, 4])
+                ]))
+        self.assertTrue(
+            np.allclose(
+                rescale_polygons(polygons, scale_factor, mode='mul'), [
+                    np.array([0, 0, 0.5, 0, 0.5, 0.5, 0, 0.5]),
+                    np.array([0.5, 0.5, 1, 0.5, 1, 1, 0.5, 1])
+                ]))
+
+        polygons = np.array([[0, 0, 1, 0, 1, 1, 0, 1],
+                             [1, 1, 2, 1, 2, 2, 1, 2]])
+        scale_factor = (0.5, 0.5)
+        self.assertTrue(
+            np.allclose(
+                rescale_polygons(polygons, scale_factor, mode='div'),
+                np.array([[0, 0, 2, 0, 2, 2, 0, 2], [2, 2, 4, 2, 4, 4, 2,
+                                                     4]])))
+        self.assertTrue(
+            np.allclose(
+                rescale_polygons(polygons, scale_factor, mode='mul'),
+                np.array([[0, 0, 0.5, 0, 0.5, 0.5, 0, 0.5],
+                          [0.5, 0.5, 1, 0.5, 1, 1, 0.5, 1]])))
+
+        polygons = [torch.Tensor([0, 0, 1, 0, 1, 1, 0, 1])]
+        scale_factor = (0.3, 0.4)
+        self.assertTrue(
+            np.allclose(
+                rescale_polygons(polygons, scale_factor, mode='div'),
+                [np.array([0, 0, 1 / 0.3, 0, 1 / 0.3, 1 / 0.4, 0, 1 / 0.4])]))
+        self.assertTrue(
+            np.allclose(
+                rescale_polygons(polygons, scale_factor, mode='mul'),
+                [np.array([0, 0, 0.3, 0, 0.3, 0.4, 0, 0.4])]))
+
+    def test_poly2bbox(self):
+        # test np.array
+        polygon = np.array([0, 0, 1, 0, 1, 1, 0, 1])
+        self.assertTrue(np.all(poly2bbox(polygon) == np.array([0, 0, 1, 1])))
+        # test list
+        polygon = [0, 0, 1, 0, 1, 1, 0, 1]
+        self.assertTrue(np.all(poly2bbox(polygon) == np.array([0, 0, 1, 1])))
+        # test tensor
+        polygon = torch.Tensor([0, 0, 1, 0, 1, 1, 0, 1])
+        self.assertTrue(np.all(poly2bbox(polygon) == np.array([0, 0, 1, 1])))
+
+    def test_poly2shapely(self):
+        polygon = Polygon([[0, 0], [1, 0], [1, 1], [0, 1]])
+        # test np.array
+        poly = np.array([0, 0, 1, 0, 1, 1, 0, 1])
+        self.assertEqual(poly2shapely(poly), polygon)
+        # test list
+        poly = [0, 0, 1, 0, 1, 1, 0, 1]
+        self.assertEqual(poly2shapely(poly), polygon)
+        # test tensor
+        poly = torch.Tensor([0, 0, 1, 0, 1, 1, 0, 1])
+        self.assertEqual(poly2shapely(poly), polygon)
+        # test invalid
+        poly = [0, 0, 1]
+        with self.assertRaises(AssertionError):
+            poly2shapely(poly)
+        poly = [0, 0, 1, 0, 1, 1, 0, 1, 1]
+        with self.assertRaises(AssertionError):
+            poly2shapely(poly)
+
+    def test_polys2shapely(self):
+        polygons = [
+            Polygon([[0, 0], [1, 0], [1, 1], [0, 1]]),
+            Polygon([[1, 0], [1, 1], [0, 1], [0, 0]])
+        ]
+        # test np.array
+        polys = np.array([[0, 0, 1, 0, 1, 1, 0, 1], [1, 0, 1, 1, 0, 1, 0, 0]])
+        self.assertEqual(polys2shapely(polys), polygons)
+        # test list
+        polys = [[0, 0, 1, 0, 1, 1, 0, 1], [1, 0, 1, 1, 0, 1, 0, 0]]
+        self.assertEqual(polys2shapely(polys), polygons)
+        # test tensor
+        polys = torch.Tensor([[0, 0, 1, 0, 1, 1, 0, 1],
+                              [1, 0, 1, 1, 0, 1, 0, 0]])
+        self.assertEqual(polys2shapely(polys), polygons)
+        # test invalid
+        polys = [0, 0, 1]
+        with self.assertRaises(AssertionError):
+            polys2shapely(polys)
+        polys = [0, 0, 1, 0, 1, 1, 0, 1, 1]
+        with self.assertRaises(AssertionError):
+            polys2shapely(polys)
+
+    def test_shapely2poly(self):
+        polygon = Polygon([[0., 0.], [1., 0.], [1., 1.], [0., 1.]])
+        poly = np.array([0., 0., 1., 0., 1., 1., 0., 1., 0., 0.])
+        self.assertTrue(poly2shapely(poly).equals(polygon))
+        self.assertTrue(isinstance(shapely2poly(polygon), np.ndarray))
+
+    def test_poly_make_valid(self):
+        poly = Polygon([[0, 0], [1, 1], [1, 0], [0, 1]])
+        self.assertFalse(poly.is_valid)
+        poly = poly_make_valid(poly)
+        self.assertTrue(poly.is_valid)
+        # invalid input
+        with self.assertRaises(AssertionError):
+            poly_make_valid([0, 0, 1, 1, 1, 0, 0, 1])
+        poly = Polygon([[337, 441], [326, 386], [334, 397], [342, 412],
+                        [296, 382], [317, 366], [324, 427], [315, 413],
+                        [308, 400], [349, 419], [337, 441]])
+        self.assertFalse(poly.is_valid)
+        poly = poly_make_valid(poly)
+        self.assertTrue(poly.is_valid)
+
+    def test_poly_intersection(self):
+
+        # test unsupported type
+        with self.assertRaises(AssertionError):
+            poly_intersection(0, 1)
+
+        # test non-overlapping polygons
+        points = [0, 0, 0, 1, 1, 1, 1, 0]
+        points1 = [10, 20, 30, 40, 50, 60, 70, 80]
+        points2 = [0, 0, 0, 0, 0, 0, 0, 0]  # Invalid polygon
+        points3 = [0, 0, 0, 1, 1, 0, 1, 1]  # Self-intersected polygon
+        points4 = [0.5, 0, 1.5, 0, 1.5, 1, 0.5, 1]
+        poly = poly2shapely(points)
+        poly1 = poly2shapely(points1)
+        poly2 = poly2shapely(points2)
+        poly3 = poly2shapely(points3)
+        poly4 = poly2shapely(points4)
+
+        area_inters = poly_intersection(poly, poly1)
+        self.assertEqual(area_inters, 0.)
+
+        # test overlapping polygons
+        area_inters = poly_intersection(poly, poly)
+        self.assertEqual(area_inters, 1)
+        area_inters = poly_intersection(poly, poly4)
+        self.assertEqual(area_inters, 0.5)
+
+        # test invalid polygons
+        self.assertEqual(poly_intersection(poly2, poly2), 0)
+        self.assertEqual(poly_intersection(poly3, poly3, invalid_ret=1), 1)
+        self.assertEqual(
+            poly_intersection(poly3, poly3, invalid_ret=None), 0.25)
+
+        # test poly return
+        _, poly = poly_intersection(poly, poly4, return_poly=True)
+        self.assertTrue(isinstance(poly, Polygon))
+        _, poly = poly_intersection(
+            poly3, poly3, invalid_ret=None, return_poly=True)
+        self.assertTrue(isinstance(poly, Polygon))
+        _, poly = poly_intersection(
+            poly2, poly3, invalid_ret=1, return_poly=True)
+        self.assertTrue(poly is None)
+
+    def test_poly_union(self):
+
+        # test unsupported type
+        with self.assertRaises(AssertionError):
+            poly_union(0, 1)
+
+        # test non-overlapping polygons
+
+        points = [0, 0, 0, 1, 1, 1, 1, 0]
+        points1 = [2, 2, 2, 3, 3, 3, 3, 2]
+        points2 = [0, 0, 0, 0, 0, 0, 0, 0]  # Invalid polygon
+        points3 = [0, 0, 0, 1, 1, 0, 1, 1]  # Self-intersected polygon
+        points4 = [0.5, 0.5, 1, 0, 1, 1, 0.5, 0.5]
+        poly = poly2shapely(points)
+        poly1 = poly2shapely(points1)
+        poly2 = poly2shapely(points2)
+        poly3 = poly2shapely(points3)
+        poly4 = poly2shapely(points4)
+
+        assert poly_union(poly, poly1) == 2
+
+        # test overlapping polygons
+        assert poly_union(poly, poly) == 1
+
+        # test invalid polygons
+        self.assertEqual(poly_union(poly2, poly2), 0)
+        self.assertEqual(poly_union(poly3, poly3, invalid_ret=1), 1)
+
+        # The return value depends on the implementation of the package
+        self.assertEqual(poly_union(poly3, poly3, invalid_ret=None), 0.25)
+        self.assertEqual(poly_union(poly2, poly3), 0.25)
+        self.assertEqual(poly_union(poly3, poly4), 0.5)
+
+        # test poly return
+        _, poly = poly_union(poly, poly1, return_poly=True)
+        self.assertTrue(isinstance(poly, MultiPolygon))
+        _, poly = poly_union(poly3, poly3, return_poly=True)
+        self.assertTrue(isinstance(poly, Polygon))
+        _, poly = poly_union(poly2, poly3, invalid_ret=0, return_poly=True)
+        self.assertTrue(poly is None)
+
+    def test_poly_iou(self):
+        # test unsupported type
+        with self.assertRaises(AssertionError):
+            poly_iou([1], [2])
+
+        points = [0, 0, 0, 1, 1, 1, 1, 0]
+        points1 = [10, 20, 30, 40, 50, 60, 70, 80]
+        points2 = [0, 0, 0, 0, 0, 0, 0, 0]  # Invalid polygon
+        points3 = [0, 0, 0, 1, 1, 0, 1, 1]  # Self-intersected polygon
+
+        poly = poly2shapely(points)
+        poly1 = poly2shapely(points1)
+        poly2 = poly2shapely(points2)
+        poly3 = poly2shapely(points3)
+
+        self.assertEqual(poly_iou(poly, poly1), 0)
+
+        # test overlapping polygons
+        self.assertEqual(poly_iou(poly, poly), 1)
+
+        # test invalid polygons
+        self.assertEqual(poly_iou(poly2, poly2), 0)
+        self.assertEqual(poly_iou(poly3, poly3, zero_division=1), 1)
+        self.assertEqual(poly_iou(poly2, poly3), 0)
+
+    def test_offset_polygon(self):
+        # usual case
+        polygons = np.array([0, 0, 0, 1, 1, 1, 1, 0], dtype=np.float32)
+        expanded_polygon = offset_polygon(polygons, 1)
+        self.assertTrue(
+            poly2shapely(expanded_polygon).equals(
+                poly2shapely(
+                    np.array(
+                        [2, 0, 2, 1, 1, 2, 0, 2, -1, 1, -1, 0, 0, -1, 1,
+                         -1]))))
+
+        # Overshrunk polygon doesn't exist
+        shrunk_polygon = offset_polygon(polygons, -10)
+        self.assertEqual(len(shrunk_polygon), 0)
+
+        # When polygon is shrunk into two polygons, it is regarded as invalid
+        # and an empty array is returned.
+        polygons = np.array([0, 0, 0, 3, 1, 2, 2, 3, 2, 0, 1, 1],
+                            dtype=np.float32)
+        shrunk = offset_polygon(polygons, -1)
+        self.assertEqual(len(shrunk), 0)
+
+    def test_boundary_iou(self):
+        points = [0, 0, 0, 1, 1, 1, 1, 0]
+        points1 = [10, 20, 30, 40, 50, 60, 70, 80]
+        points2 = [0, 0, 0, 0, 0, 0, 0, 0]  # Invalid polygon
+        points3 = [0, 0, 0, 1, 1, 0, 1, 1]  # Self-intersected polygon
+
+        self.assertEqual(boundary_iou(points, points1), 0)
+
+        # test overlapping boundaries
+        self.assertEqual(boundary_iou(points, points), 1)
+
+        # test invalid boundaries
+        self.assertEqual(boundary_iou(points2, points2), 0)
+        self.assertEqual(boundary_iou(points3, points3, zero_division=1), 1)
+        self.assertEqual(boundary_iou(points2, points3), 0)
+
+    def test_sort_points(self):
+        points = np.array([[1, 1], [0, 0], [1, -1], [2, -2], [0, 2], [1, 1],
+                           [0, 1], [-1, 1], [-1, -1]])
+        target = np.array([[-1, -1], [0, 0], [-1, 1], [0, 1], [0, 2], [1, 1],
+                           [1, 1], [2, -2], [1, -1]])
+        self.assertTrue(np.allclose(target, sort_points(points)))
+
+        points = np.array([[1, 1], [1, -1], [-1, 1], [-1, -1]])
+        target = np.array([[-1, -1], [-1, 1], [1, 1], [1, -1]])
+        self.assertTrue(np.allclose(target, sort_points(points)))
+
+        points = [[1, 1], [1, -1], [-1, 1], [-1, -1]]
+        self.assertTrue(np.allclose(target, sort_points(points)))
+
+        points = [[0.5, 0.3], [1, 0.5], [-0.5, 0.8], [-0.1, 1]]
+        target = [[-0.5, 0.8], [-0.1, 1], [1, 0.5], [0.5, 0.3]]
+        self.assertTrue(np.allclose(target, sort_points(points)))
+
+        points = [[0.5, 3], [0.1, -0.2], [-0.5, -0.3], [-0.7, 3.1]]
+        target = [[-0.5, -0.3], [-0.7, 3.1], [0.5, 3], [0.1, -0.2]]
+        self.assertTrue(np.allclose(target, sort_points(points)))
+
+        points = [[1, 0.8], [0.8, -1], [1.8, 0.5], [1.9, -0.6], [-0.5, 2],
+                  [-1, 1.8], [-2, 0.7], [-1.6, -0.2], [-1, -0.5]]
+        target = [[-1, -0.5], [-1.6, -0.2], [-2, 0.7], [-1, 1.8], [-0.5, 2],
+                  [1, 0.8], [1.8, 0.5], [1.9, -0.6], [0.8, -1]]
+        self.assertTrue(np.allclose(target, sort_points(points)))
+
+        # concave polygon may failed
+        points = [[1, 0], [-1, 0], [0, 0], [0, -1], [0.25, 1], [0.75, 1],
+                  [-0.25, 1], [-0.75, 1]]
+        target = [[-1, 0], [-0.75, 1], [-0.25, 1], [0, 0], [0.25, 1],
+                  [0.75, 1], [1, 0], [0, -1]]
+        self.assertFalse(np.allclose(target, sort_points(points)))
+
+        with self.assertRaises(AssertionError):
+            sort_points([1, 2])
+
+    def test_sort_vertex(self):
+        dummy_points_x = [20, 20, 120, 120]
+        dummy_points_y = [20, 40, 40, 20]
+
+        expect_points_x = [20, 120, 120, 20]
+        expect_points_y = [20, 20, 40, 40]
+
+        with self.assertRaises(AssertionError):
+            sort_vertex([], dummy_points_y)
+        with self.assertRaises(AssertionError):
+            sort_vertex(dummy_points_x, [])
+
+        for perm in set(permutations([0, 1, 2, 3])):
+            points_x = [dummy_points_x[i] for i in perm]
+            points_y = [dummy_points_y[i] for i in perm]
+            ordered_points_x, ordered_points_y = sort_vertex(
+                points_x, points_y)
+
+            self.assertTrue(np.allclose(ordered_points_x, expect_points_x))
+            self.assertTrue(np.allclose(ordered_points_y, expect_points_y))
+
+    def test_sort_vertex8(self):
+        dummy_points_x = [21, 21, 122, 122]
+        dummy_points_y = [21, 39, 39, 21]
+
+        expect_points = [21, 21, 122, 21, 122, 39, 21, 39]
+
+        for perm in set(permutations([0, 1, 2, 3])):
+            points_x = [dummy_points_x[i] for i in perm]
+            points_y = [dummy_points_y[i] for i in perm]
+            points = list(chain.from_iterable(zip(points_x, points_y)))
+            ordered_points = sort_vertex8(points)
+
+            self.assertTrue(np.allclose(ordered_points, expect_points))
diff --git a/mmocr-dev-1.x/tests/test_utils/test_processing.py b/mmocr-dev-1.x/tests/test_utils/test_processing.py
new file mode 100644
index 0000000000000000000000000000000000000000..44953f7e898abcef11538b9e3e9e34840662fabd
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_processing.py
@@ -0,0 +1,30 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import unittest
+
+from mmocr.utils import track_parallel_progress_multi_args
+
+
+def func(a, b):
+    return a + b
+
+
+class TestProcessing(unittest.TestCase):
+
+    def test_track_parallel_progress_multi_args(self):
+
+        args = ([1, 2, 3], [4, 5, 6])
+        results = track_parallel_progress_multi_args(func, args, nproc=1)
+        self.assertEqual(results, [5, 7, 9])
+
+        results = track_parallel_progress_multi_args(func, args, nproc=2)
+        self.assertEqual(results, [5, 7, 9])
+
+        with self.assertRaises(AssertionError):
+            track_parallel_progress_multi_args(func, 1, nproc=1)
+
+        with self.assertRaises(AssertionError):
+            track_parallel_progress_multi_args(func, ([1, 2], 1), nproc=1)
+
+        with self.assertRaises(AssertionError):
+            track_parallel_progress_multi_args(
+                func, ([1, 2], [1, 2, 3]), nproc=1)
diff --git a/mmocr-dev-1.x/tests/test_utils/test_string_utils.py b/mmocr-dev-1.x/tests/test_utils/test_string_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..e4c3d720ac8df5a1e012aea42361ca79931b414d
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_string_utils.py
@@ -0,0 +1,35 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import pytest
+
+from mmocr.utils import StringStripper
+
+
+def test_string_strip():
+    strip_list = [True, False]
+    strip_pos_list = ['both', 'left', 'right']
+    strip_str_list = [None, ' ']
+
+    in_str_list = [
+        ' hello ', 'hello ', ' hello', ' hello', 'hello ', 'hello ', 'hello',
+        'hello', 'hello', 'hello', 'hello', 'hello'
+    ]
+    out_str_list = [
+        'hello', 'hello', 'hello', 'hello', 'hello', 'hello', 'hello', 'hello',
+        'hello', 'hello', 'hello', 'hello'
+    ]
+
+    for idx1, strip in enumerate(strip_list):
+        for idx2, strip_pos in enumerate(strip_pos_list):
+            for idx3, strip_str in enumerate(strip_str_list):
+                tmp_args = dict(
+                    strip=strip, strip_pos=strip_pos, strip_str=strip_str)
+                strip_class = StringStripper(**tmp_args)
+                i = idx1 * len(strip_pos_list) * len(
+                    strip_str_list) + idx2 * len(strip_str_list) + idx3
+
+                assert strip_class(in_str_list[i]) == out_str_list[i]
+
+    with pytest.raises(AssertionError):
+        StringStripper(strip='strip')
+        StringStripper(strip_pos='head')
+        StringStripper(strip_str=['\n', '\t'])
diff --git a/mmocr-dev-1.x/tests/test_utils/test_transform_utils.py b/mmocr-dev-1.x/tests/test_utils/test_transform_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..d29dc372a92d5f534a1fcf8c9bfbe545e7c63d93
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_utils/test_transform_utils.py
@@ -0,0 +1,41 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import copy
+import unittest
+
+import numpy as np
+
+from mmocr.utils import remove_pipeline_elements
+
+
+class TestTransformUtils(unittest.TestCase):
+
+    def test_remove_pipeline_elements(self):
+        data = dict(img=np.random.random((30, 40, 3)))
+        results = remove_pipeline_elements(copy.deepcopy(data), [0, 1, 2])
+        self.assertTrue(np.array_equal(results['img'], data['img']))
+        self.assertEqual(len(data), len(results))
+
+        data['gt_polygons'] = [
+            np.array([0., 0., 10., 10., 10., 0.]),
+            np.array([0., 0., 10., 0., 0., 10.]),
+            np.array([0, 10, 0, 10, 1, 2, 3, 4]),
+            np.array([0, 10, 0, 10, 10, 0, 0, 10]),
+        ]
+        data['dummy'] = [
+            np.array([0., 0., 10., 10., 10., 0.]),
+        ]
+        data['gt_ignored'] = np.array([True, True, False, False], dtype=bool)
+        data['gt_bboxes_labels'] = np.array([0, 1, 2, 3])
+        data['gt_bboxes'] = np.array([[1, 2, 3, 4], [5, 6, 7, 8],
+                                      [0, 0, 10, 10], [0, 0, 0, 0]])
+        data['gt_texts'] = ['t1', 't2', 't3', 't4']
+        keys = [
+            'gt_polygons', 'gt_bboxes', 'gt_ignored', 'gt_texts',
+            'gt_bboxes_labels'
+        ]
+        results = remove_pipeline_elements(copy.deepcopy(data), [0, 1, 2])
+
+        for key in keys:
+            self.assertTrue(np.array_equal(results[key][0], data[key][3]))
+        self.assertTrue(np.array_equal(results['img'], data['img']))
+        self.assertTrue(np.array_equal(results['dummy'], data['dummy']))
diff --git a/mmocr-dev-1.x/tests/test_visualization/test_base_visualizer.py b/mmocr-dev-1.x/tests/test_visualization/test_base_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..57abc242fa2a871138b8d995f4c46ab990377dd3
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_visualization/test_base_visualizer.py
@@ -0,0 +1,55 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from unittest import TestCase
+
+import numpy as np
+
+from mmocr.visualization import BaseLocalVisualizer
+
+
+class TestBaseLocalVisualizer(TestCase):
+
+    def test_get_labels_image(self):
+        labels = ['a', 'b', 'c']
+        image = np.zeros((40, 40, 3), dtype=np.uint8)
+        bboxes = np.array([[0, 0, 10, 10], [10, 10, 20, 20], [20, 20, 30, 30]])
+        labels_image = BaseLocalVisualizer().get_labels_image(
+            image,
+            labels,
+            bboxes=bboxes,
+            auto_font_size=True,
+            colors=['r', 'r', 'r', 'r'])
+        self.assertEqual(labels_image.shape, (40, 40, 3))
+
+    def test_get_polygons_image(self):
+        polygons = [np.array([0, 0, 10, 10, 20, 20, 30, 30]).reshape(-1, 2)]
+        image = np.zeros((40, 40, 3), dtype=np.uint8)
+        polygons_image = BaseLocalVisualizer().get_polygons_image(
+            image, polygons, colors=['r', 'r', 'r', 'r'])
+        self.assertEqual(polygons_image.shape, (40, 40, 3))
+
+        polygons_image = BaseLocalVisualizer().get_polygons_image(
+            image, polygons, colors=['r', 'r', 'r', 'r'], filling=True)
+        self.assertEqual(polygons_image.shape, (40, 40, 3))
+
+    def test_get_bboxes_image(self):
+        bboxes = np.array([[0, 0, 10, 10], [10, 10, 20, 20], [20, 20, 30, 30]])
+        image = np.zeros((40, 40, 3), dtype=np.uint8)
+        bboxes_image = BaseLocalVisualizer().get_bboxes_image(
+            image, bboxes, colors=['r', 'r', 'r', 'r'])
+        self.assertEqual(bboxes_image.shape, (40, 40, 3))
+
+        bboxes_image = BaseLocalVisualizer().get_bboxes_image(
+            image, bboxes, colors=['r', 'r', 'r', 'r'], filling=True)
+        self.assertEqual(bboxes_image.shape, (40, 40, 3))
+
+    def test_cat_images(self):
+        image1 = np.zeros((40, 40, 3), dtype=np.uint8)
+        image2 = np.zeros((40, 40, 3), dtype=np.uint8)
+        image = BaseLocalVisualizer()._cat_image([image1, image2], axis=1)
+        self.assertEqual(image.shape, (40, 80, 3))
+
+        image = BaseLocalVisualizer()._cat_image([], axis=0)
+        self.assertIsNone(image)
+
+        image = BaseLocalVisualizer()._cat_image([image1, None], axis=0)
+        self.assertEqual(image.shape, (40, 40, 3))
diff --git a/mmocr-dev-1.x/tests/test_visualization/test_kie_visualizer.py b/mmocr-dev-1.x/tests/test_visualization/test_kie_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..0cc650b3f8a6800f0ff74b1605668dfde070a1f6
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_visualization/test_kie_visualizer.py
@@ -0,0 +1,126 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.structures import KIEDataSample
+from mmocr.utils import bbox2poly
+from mmocr.visualization import KIELocalVisualizer
+
+
+class TestTextKIELocalVisualizer(unittest.TestCase):
+
+    def setUp(self):
+        h, w = 12, 10
+        self.image = np.random.randint(0, 256, size=(h, w, 3)).astype('uint8')
+        edge_labels = torch.rand((5, 5)) > 0.5
+        # gt_instances
+        data_sample = KIEDataSample()
+        gt_instances_data = dict(
+            bboxes=self._rand_bboxes(5, h, w),
+            polygons=self._rand_polys(5, h, w),
+            labels=torch.zeros(5, ),
+            texts=['text1', 'text2', 'text3', 'text4', 'text5'],
+            edge_labels=edge_labels)
+        gt_instances = InstanceData(**gt_instances_data)
+        data_sample.gt_instances = gt_instances
+
+        pred_instances_data = dict(
+            bboxes=self._rand_bboxes(5, h, w),
+            labels=torch.zeros(5, ),
+            scores=torch.rand((5, )),
+            texts=['text1', 'text2', 'text3', 'text4', 'text5'],
+            edge_labels=edge_labels)
+        pred_instances = InstanceData(**pred_instances_data)
+        data_sample.pred_instances = pred_instances
+        data_sample = data_sample.numpy()
+        self.data_sample = data_sample
+
+    @staticmethod
+    def _rand_bboxes(num_boxes, h, w):
+        cx, cy, bw, bh = torch.rand(num_boxes, 4).T
+
+        tl_x = ((cx * w) - (w * bw / 2)).clamp(0, w).unsqueeze(0)
+        tl_y = ((cy * h) - (h * bh / 2)).clamp(0, h).unsqueeze(0)
+        br_x = ((cx * w) + (w * bw / 2)).clamp(0, w).unsqueeze(0)
+        br_y = ((cy * h) + (h * bh / 2)).clamp(0, h).unsqueeze(0)
+
+        bboxes = torch.cat([tl_x, tl_y, br_x, br_y], dim=0).T
+
+        return bboxes
+
+    def _rand_polys(self, num_bboxes, h, w):
+        bboxes = self._rand_bboxes(num_bboxes, h, w)
+        bboxes = bboxes.tolist()
+        polys = [bbox2poly(bbox) for bbox in bboxes]
+        return polys
+
+    def test_add_datasample(self):
+        image = self.image
+        h, w, c = image.shape
+
+        visualizer = KIELocalVisualizer(is_openset=True)
+        visualizer.dataset_meta = dict(category=[
+            dict(id=0, name='bg'),
+            dict(id=1, name='key'),
+            dict(id=2, name='value'),
+            dict(id=3, name='other')
+        ])
+        visualizer.add_datasample('image', image, self.data_sample)
+
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            # test out
+            out_file = osp.join(tmp_dir, 'out_file.jpg')
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                out_file=out_file,
+                draw_gt=False,
+                draw_pred=False)
+            self._assert_image_and_shape(out_file, (h, w, c))
+
+            visualizer.add_datasample(
+                'image', image, self.data_sample, out_file=out_file)
+            self._assert_image_and_shape(out_file, (h * 2, w * 4, c))
+
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_gt=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w * 4, c))
+
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_pred=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w * 4, c))
+
+            visualizer = KIELocalVisualizer(is_openset=False)
+            visualizer.dataset_meta = dict(category=[
+                dict(id=0, name='bg'),
+                dict(id=1, name='key'),
+                dict(id=2, name='value'),
+                dict(id=3, name='other')
+            ])
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_pred=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w * 3, c))
+
+    def _assert_image_and_shape(self, out_file, out_shape):
+        self.assertTrue(osp.exists(out_file))
+        drawn_img = cv2.imread(out_file)
+        self.assertTrue(drawn_img.shape == out_shape)
diff --git a/mmocr-dev-1.x/tests/test_visualization/test_textdet_visualizer.py b/mmocr-dev-1.x/tests/test_visualization/test_textdet_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..21a493ada05542ba43b77b7bab60749f2d3a8333
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_visualization/test_textdet_visualizer.py
@@ -0,0 +1,111 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import bbox2poly
+from mmocr.visualization import TextDetLocalVisualizer
+
+
+class TestTextDetLocalVisualizer(unittest.TestCase):
+
+    def setUp(self):
+        h, w = 12, 10
+        self.image = np.random.randint(0, 256, size=(h, w, 3)).astype('uint8')
+
+        # gt_instances
+        data_sample = TextDetDataSample()
+        gt_instances_data = dict(
+            bboxes=self._rand_bboxes(5, h, w),
+            polygons=self._rand_polys(5, h, w),
+            labels=torch.zeros(5, ))
+        gt_instances = InstanceData(**gt_instances_data)
+        data_sample.gt_instances = gt_instances
+
+        pred_instances_data = dict(
+            bboxes=self._rand_bboxes(5, h, w),
+            polygons=self._rand_polys(5, h, w),
+            labels=torch.zeros(5, ),
+            scores=torch.rand((5, )))
+        pred_instances = InstanceData(**pred_instances_data)
+        data_sample.pred_instances = pred_instances
+        self.data_sample = data_sample
+
+    def test_text_det_local_visualizer(self):
+        for with_poly in [True, False]:
+            for with_bbox in [True, False]:
+                vis_cfg = dict(with_poly=with_poly, with_bbox=with_bbox)
+                self._test_add_datasample(vis_cfg=vis_cfg)
+
+    @staticmethod
+    def _rand_bboxes(num_boxes, h, w):
+        cx, cy, bw, bh = torch.rand(num_boxes, 4).T
+
+        tl_x = ((cx * w) - (w * bw / 2)).clamp(0, w).unsqueeze(0)
+        tl_y = ((cy * h) - (h * bh / 2)).clamp(0, h).unsqueeze(0)
+        br_x = ((cx * w) + (w * bw / 2)).clamp(0, w).unsqueeze(0)
+        br_y = ((cy * h) + (h * bh / 2)).clamp(0, h).unsqueeze(0)
+
+        bboxes = torch.cat([tl_x, tl_y, br_x, br_y], dim=0).T
+
+        return bboxes
+
+    def _rand_polys(self, num_bboxes, h, w):
+        bboxes = self._rand_bboxes(num_bboxes, h, w)
+        bboxes = bboxes.tolist()
+        polys = [bbox2poly(bbox) for bbox in bboxes]
+        return polys
+
+    def _test_add_datasample(self, vis_cfg):
+        image = self.image
+        h, w, c = image.shape
+
+        det_local_visualizer = TextDetLocalVisualizer(**vis_cfg)
+        det_local_visualizer.add_datasample('image', image, self.data_sample)
+
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            # test out
+            out_file = osp.join(tmp_dir, 'out_file.jpg')
+            det_local_visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                out_file=out_file,
+                draw_gt=False,
+                draw_pred=False)
+            self._assert_image_and_shape(out_file, (h, w, c))
+
+            det_local_visualizer.add_datasample(
+                'image', image, self.data_sample, out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w * 2, c))
+
+            det_local_visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_gt=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w, c))
+
+            det_local_visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_pred=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w, c))
+
+            det_local_visualizer.add_datasample(
+                'image', image, None, out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w, c))
+
+    def _assert_image_and_shape(self, out_file, out_shape):
+        self.assertTrue(osp.exists(out_file))
+        drawn_img = cv2.imread(out_file)
+        self.assertTrue(drawn_img.shape == out_shape)
diff --git a/mmocr-dev-1.x/tests/test_visualization/test_textrecog_visualizer.py b/mmocr-dev-1.x/tests/test_visualization/test_textrecog_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..3171a02d9dd45c4a3c124b4b735f6c5f8496f27a
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_visualization/test_textrecog_visualizer.py
@@ -0,0 +1,73 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+from mmengine.structures import LabelData
+
+from mmocr.structures import TextRecogDataSample
+from mmocr.visualization import TextRecogLocalVisualizer
+
+
+class TestTextDetLocalVisualizer(unittest.TestCase):
+
+    def test_add_datasample(self):
+        h, w = 64, 128
+        image = np.random.randint(0, 256, size=(h, w, 3)).astype('uint8')
+
+        # test gt_text
+        data_sample = TextRecogDataSample()
+        img_meta = dict(img_shape=(12, 10, 3))
+        gt_text = LabelData(metainfo=img_meta)
+        gt_text.item = 'mmocr'
+        data_sample.gt_text = gt_text
+
+        recog_local_visualizer = TextRecogLocalVisualizer()
+        recog_local_visualizer.add_datasample('image', image, data_sample)
+
+        # test gt_text and pred_text
+        pred_text = LabelData(metainfo=img_meta)
+        pred_text.item = 'MMOCR'
+        data_sample.pred_text = pred_text
+
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            # test out
+            out_file = osp.join(tmp_dir, 'out_file.jpg')
+
+            # draw_gt = True + gt_sample
+            recog_local_visualizer.add_datasample(
+                'image',
+                image,
+                data_sample,
+                out_file=out_file,
+                draw_gt=True,
+                draw_pred=False)
+            self._assert_image_and_shape(out_file, (h * 2, w, 3))
+
+            # draw_gt = True
+            recog_local_visualizer.add_datasample(
+                'image',
+                image,
+                data_sample,
+                out_file=out_file,
+                draw_gt=True,
+                draw_pred=True)
+            self._assert_image_and_shape(out_file, (h * 3, w, 3))
+
+            # draw_gt = False
+            recog_local_visualizer.add_datasample(
+                'image', image, data_sample, draw_gt=False, out_file=out_file)
+            self._assert_image_and_shape(out_file, (h * 2, w, 3))
+
+            # gray image
+            image = np.random.randint(0, 256, size=(h, w)).astype('uint8')
+            recog_local_visualizer.add_datasample(
+                'image', image, data_sample, draw_gt=False, out_file=out_file)
+            self._assert_image_and_shape(out_file, (h * 2, w, 3))
+
+    def _assert_image_and_shape(self, out_file, out_shape):
+        self.assertTrue(osp.exists(out_file))
+        drawn_img = cv2.imread(out_file)
+        self.assertTrue(drawn_img.shape == out_shape)
diff --git a/mmocr-dev-1.x/tests/test_visualization/test_textspotting_visualizer.py b/mmocr-dev-1.x/tests/test_visualization/test_textspotting_visualizer.py
new file mode 100644
index 0000000000000000000000000000000000000000..5c064339f16a20b6d2029240b7f00aadab0c6f91
--- /dev/null
+++ b/mmocr-dev-1.x/tests/test_visualization/test_textspotting_visualizer.py
@@ -0,0 +1,113 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import os.path as osp
+import tempfile
+import unittest
+
+import cv2
+import numpy as np
+import torch
+from mmengine.structures import InstanceData
+
+from mmocr.structures import TextDetDataSample
+from mmocr.utils import bbox2poly
+from mmocr.visualization import TextSpottingLocalVisualizer
+
+
+class TestTextSpottingLocalVisualizer(unittest.TestCase):
+
+    def setUp(self):
+        h, w = 12, 10
+        self.image = np.random.randint(0, 256, size=(h, w, 3)).astype('uint8')
+        # gt_instances
+        data_sample = TextDetDataSample()
+        gt_instances_data = dict(
+            bboxes=self._rand_bboxes(5, h, w),
+            polygons=self._rand_polys(5, h, w),
+            labels=torch.zeros(5, ),
+            texts=['text1', 'text2', 'text3', 'text4', 'text5'])
+        gt_instances = InstanceData(**gt_instances_data)
+        data_sample.gt_instances = gt_instances
+
+        pred_instances_data = dict(
+            bboxes=self._rand_bboxes(5, h, w),
+            labels=torch.zeros(5, ),
+            scores=torch.rand((5, )),
+            texts=['text1', 'text2', 'text3', 'text4', 'text5'])
+        pred_instances = InstanceData(**pred_instances_data)
+        data_sample.pred_instances = pred_instances
+        data_sample = data_sample.numpy()
+        self.data_sample = data_sample
+
+    @staticmethod
+    def _rand_bboxes(num_boxes, h, w):
+        cx, cy, bw, bh = torch.rand(num_boxes, 4).T
+
+        tl_x = ((cx * w) - (w * bw / 2)).clamp(0, w).unsqueeze(0)
+        tl_y = ((cy * h) - (h * bh / 2)).clamp(0, h).unsqueeze(0)
+        br_x = ((cx * w) + (w * bw / 2)).clamp(0, w).unsqueeze(0)
+        br_y = ((cy * h) + (h * bh / 2)).clamp(0, h).unsqueeze(0)
+
+        bboxes = torch.cat([tl_x, tl_y, br_x, br_y], dim=0).T
+
+        return bboxes
+
+    def _rand_polys(self, num_bboxes, h, w):
+        bboxes = self._rand_bboxes(num_bboxes, h, w)
+        bboxes = bboxes.tolist()
+        polys = [bbox2poly(bbox) for bbox in bboxes]
+        return polys
+
+    def test_add_datasample(self):
+        image = self.image
+        h, w, c = image.shape
+
+        visualizer = TextSpottingLocalVisualizer()
+        visualizer.add_datasample('image', image, self.data_sample)
+
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            # test out
+            out_file = osp.join(tmp_dir, 'out_file.jpg')
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                out_file=out_file,
+                draw_gt=False,
+                draw_pred=False)
+            self._assert_image_and_shape(out_file, (h, w, c))
+
+            visualizer.add_datasample(
+                'image', image, self.data_sample, out_file=out_file)
+            self._assert_image_and_shape(out_file, (h * 2, w * 2, c))
+
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_gt=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w * 2, c))
+
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_pred=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w * 2, c))
+            bboxes = self.data_sample.pred_instances.get('bboxes')
+            bboxes = bboxes.tolist()
+            polys = [bbox2poly(bbox) for bbox in bboxes]
+            self.data_sample.pred_instances.polygons = polys
+            visualizer.add_datasample(
+                'image',
+                image,
+                self.data_sample,
+                draw_gt=False,
+                out_file=out_file)
+            self._assert_image_and_shape(out_file, (h, w * 2, c))
+
+    def _assert_image_and_shape(self, out_file, out_shape):
+        self.assertTrue(osp.exists(out_file))
+        drawn_img = cv2.imread(out_file)
+        self.assertTrue(drawn_img.shape == out_shape)
diff --git a/mmocr-dev-1.x/tools/analysis_tools/get_flops.py b/mmocr-dev-1.x/tools/analysis_tools/get_flops.py
new file mode 100644
index 0000000000000000000000000000000000000000..caa97203aa1e077bd266ab64aa02c1d59f88ec7f
--- /dev/null
+++ b/mmocr-dev-1.x/tools/analysis_tools/get_flops.py
@@ -0,0 +1,55 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+
+import torch
+from fvcore.nn import FlopCountAnalysis, flop_count_table
+from mmengine import Config
+from mmengine.registry import init_default_scope
+
+from mmocr.registry import MODELS
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Train a detector')
+    parser.add_argument('config', help='train config file path')
+    parser.add_argument(
+        '--shape',
+        type=int,
+        nargs='+',
+        default=[640, 640],
+        help='input image size')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+
+    args = parse_args()
+
+    if len(args.shape) == 1:
+        h = w = args.shape[0]
+    elif len(args.shape) == 2:
+        h, w = args.shape
+    else:
+        raise ValueError('invalid input shape, please use --shape h w')
+
+    input_shape = (1, 3, h, w)
+
+    cfg = Config.fromfile(args.config)
+    init_default_scope(cfg.get('default_scope', 'mmocr'))
+    model = MODELS.build(cfg.model)
+
+    flops = FlopCountAnalysis(model, torch.ones(input_shape))
+
+    # params = parameter_count_table(model)
+    flops_data = flop_count_table(flops)
+
+    print(flops_data)
+
+    print('!!!Please be cautious if you use the results in papers. '
+          'You may need to check if all ops are supported and verify that the '
+          'flops computation is correct.')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/analysis_tools/offline_eval.py b/mmocr-dev-1.x/tools/analysis_tools/offline_eval.py
new file mode 100644
index 0000000000000000000000000000000000000000..b454942238d59d4f07067896ca9f9742094d0d59
--- /dev/null
+++ b/mmocr-dev-1.x/tools/analysis_tools/offline_eval.py
@@ -0,0 +1,49 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+
+import mmengine
+from mmengine.config import Config, DictAction
+from mmengine.evaluator import Evaluator
+from mmengine.registry import init_default_scope
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Offline evaluation of the '
+                                     'prediction saved in pkl format')
+    parser.add_argument('config', help='Config of the model')
+    parser.add_argument(
+        'pkl_results', help='Path to the predictions in '
+        'pickle format')
+    parser.add_argument(
+        '--cfg-options',
+        nargs='+',
+        action=DictAction,
+        help='Override some settings in the used config, the key-value pair '
+        'in xxx=yyy format will be merged into config file. If the value to '
+        'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
+        'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
+        'Note that the quotation marks are necessary and that no white space '
+        'is allowed.')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+
+    # load config
+    cfg = Config.fromfile(args.config)
+    init_default_scope(cfg.get('default_scope', 'mmocr'))
+    if args.cfg_options is not None:
+        cfg.merge_from_dict(args.cfg_options)
+
+    predictions = mmengine.load(args.pkl_results)
+
+    evaluator = Evaluator(cfg.test_evaluator)
+    eval_results = evaluator.offline_evaluate(predictions)
+    print(json.dumps(eval_results))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/analysis_tools/print_config.py b/mmocr-dev-1.x/tools/analysis_tools/print_config.py
new file mode 100644
index 0000000000000000000000000000000000000000..770bb6da216bd382751a8b20c323e87119afe4e6
--- /dev/null
+++ b/mmocr-dev-1.x/tools/analysis_tools/print_config.py
@@ -0,0 +1,36 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+
+from mmengine import Config, DictAction
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Print the whole config')
+    parser.add_argument('config', help='config file path')
+    parser.add_argument(
+        '--cfg-options',
+        nargs='+',
+        action=DictAction,
+        help='override some settings in the used config, the key-value pair '
+        'in xxx=yyy format will be merged into config file. If the value to '
+        'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
+        'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
+        'Note that the quotation marks are necessary and that no white space '
+        'is allowed.')
+    args = parser.parse_args()
+
+    return args
+
+
+def main():
+    args = parse_args()
+
+    cfg = Config.fromfile(args.config)
+
+    if args.cfg_options is not None:
+        cfg.merge_from_dict(args.cfg_options)
+    print(f'Config:\n{cfg.pretty_text}')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/common/curvedsyntext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/common/curvedsyntext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..5fd8784a708c45591c00b97fc1e0c4fe96c88df7
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/common/curvedsyntext_converter.py
@@ -0,0 +1,129 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os.path as osp
+from functools import partial
+
+import mmengine
+import numpy as np
+
+from mmocr.utils import bezier2polygon, sort_points
+
+# The default dictionary used by CurvedSynthText
+dict95 = [
+    ' ', '!', '"', '#', '$', '%', '&', '\'', '(', ')', '*', '+', ',', '-', '.',
+    '/', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=',
+    '>', '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
+    'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[',
+    '\\', ']', '^', '_', '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+    'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
+    'z', '{', '|', '}', '~'
+]
+UNK = len(dict95)
+EOS = UNK + 1
+
+
+def digit2text(rec):
+    res = []
+    for d in rec:
+        assert d <= EOS
+        if d == EOS:
+            break
+        if d == UNK:
+            print('Warning: Has a UNK character')
+            res.append('口')  # Or any special character not in the target dict
+        res.append(dict95[d])
+    return ''.join(res)
+
+
+def modify_annotation(ann, num_sample, start_img_id=0, start_ann_id=0):
+    ann['text'] = digit2text(ann.pop('rec'))
+    # Get hide egmentation points
+    polygon_pts = bezier2polygon(ann['bezier_pts'], num_sample=num_sample)
+    ann['segmentation'] = np.asarray(sort_points(polygon_pts)).reshape(
+        1, -1).tolist()
+    ann['image_id'] += start_img_id
+    ann['id'] += start_ann_id
+    return ann
+
+
+def modify_image_info(image_info, path_prefix, start_img_id=0):
+    image_info['file_name'] = osp.join(path_prefix, image_info['file_name'])
+    image_info['id'] += start_img_id
+    return image_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Convert CurvedSynText150k to COCO format')
+    parser.add_argument('root_path', help='CurvedSynText150k  root path')
+    parser.add_argument('-o', '--out-dir', help='Output path')
+    parser.add_argument(
+        '-n',
+        '--num-sample',
+        type=int,
+        default=4,
+        help='Number of sample points at each Bezier curve.')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args()
+    return args
+
+
+def convert_annotations(data,
+                        path_prefix,
+                        num_sample,
+                        nproc,
+                        start_img_id=0,
+                        start_ann_id=0):
+    modify_image_info_with_params = partial(
+        modify_image_info, path_prefix=path_prefix, start_img_id=start_img_id)
+    modify_annotation_with_params = partial(
+        modify_annotation,
+        num_sample=num_sample,
+        start_img_id=start_img_id,
+        start_ann_id=start_ann_id)
+    if nproc > 1:
+        data['annotations'] = mmengine.track_parallel_progress(
+            modify_annotation_with_params, data['annotations'], nproc=nproc)
+        data['images'] = mmengine.track_parallel_progress(
+            modify_image_info_with_params, data['images'], nproc=nproc)
+    else:
+        data['annotations'] = mmengine.track_progress(
+            modify_annotation_with_params, data['annotations'])
+        data['images'] = mmengine.track_progress(
+            modify_image_info_with_params,
+            data['images'],
+        )
+    data['categories'] = [{'id': 1, 'name': 'text'}]
+    return data
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    out_dir = args.out_dir if args.out_dir else root_path
+    mmengine.mkdir_or_exist(out_dir)
+
+    anns = mmengine.load(osp.join(root_path, 'train1.json'))
+    data1 = convert_annotations(anns, 'syntext_word_eng', args.num_sample,
+                                args.nproc)
+
+    # Get the maximum image id from data1
+    start_img_id = max(data1['images'], key=lambda x: x['id'])['id'] + 1
+    start_ann_id = max(data1['annotations'], key=lambda x: x['id'])['id'] + 1
+    anns = mmengine.load(osp.join(root_path, 'train2.json'))
+    data2 = convert_annotations(
+        anns,
+        'emcs_imgs',
+        args.num_sample,
+        args.nproc,
+        start_img_id=start_img_id,
+        start_ann_id=start_ann_id)
+
+    data1['images'] += data2['images']
+    data1['annotations'] += data2['annotations']
+    mmengine.dump(data1, osp.join(out_dir, 'instances_training.json'))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/common/extract_kaist.py b/mmocr-dev-1.x/tools/dataset_converters/common/extract_kaist.py
new file mode 100644
index 0000000000000000000000000000000000000000..76d2579ccbb59f9addc60bbbe9df9037fd543665
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/common/extract_kaist.py
@@ -0,0 +1,75 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+import shutil
+import xml.etree.ElementTree as ET
+import zipfile
+from xml.etree.ElementTree import ParseError
+
+
+def extract(root_path):
+    idx = 0
+    for language in ['English', 'Korean', 'Mixed']:
+        for camera in ['Digital_Camera', 'Mobile_Phone']:
+            crt_path = osp.join(root_path, 'KAIST', language, camera)
+            zips = os.listdir(crt_path)
+            for zip in zips:
+                extracted_path = osp.join(root_path, 'tmp', zip)
+                extract_zipfile(osp.join(crt_path, zip), extracted_path)
+                for file in os.listdir(extracted_path):
+                    if file.endswith('xml'):
+                        src_ann = os.path.join(extracted_path, file)
+                        # Filtering broken annotations
+                        try:
+                            ET.parse(src_ann)
+                        except ParseError:
+                            continue
+                        src_img = None
+                        img_names = [
+                            file.replace('xml', suffix)
+                            for suffix in ['jpg', 'JPG']
+                        ]
+                        for im in img_names:
+                            img_path = osp.join(extracted_path, im)
+                            if osp.exists(img_path):
+                                src_img = img_path
+                        if src_img:
+                            shutil.move(
+                                src_ann,
+                                osp.join(root_path, 'annotations',
+                                         str(idx).zfill(5) + '.xml'))
+                            shutil.move(
+                                src_img,
+                                osp.join(root_path, 'imgs',
+                                         str(idx).zfill(5) + '.jpg'))
+                            idx += 1
+
+
+def extract_zipfile(zip_path, dst_dir, delete=True):
+
+    files = zipfile.ZipFile(zip_path)
+    for file in files.namelist():
+        files.extract(file, dst_dir)
+    if delete:
+        os.remove(zip_path)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Extract KAIST zips')
+    parser.add_argument('root_path', help='Root path of KAIST')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    assert osp.exists(root_path)
+    extract(root_path)
+    shutil.rmtree(osp.join(args.root_path, 'tmp'))
+    shutil.rmtree(osp.join(args.root_path, 'KAIST'))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/kie/closeset_to_openset.py b/mmocr-dev-1.x/tools/dataset_converters/kie/closeset_to_openset.py
new file mode 100644
index 0000000000000000000000000000000000000000..2057e9797bd0586fd8820ef3ae161486bea22d32
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/kie/closeset_to_openset.py
@@ -0,0 +1,122 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+from functools import partial
+
+import mmengine
+
+from mmocr.utils import list_from_file, list_to_file
+
+
+def convert(closeset_line, merge_bg_others=False, ignore_idx=0, others_idx=25):
+    """Convert line-json str of closeset to line-json str of openset. Note that
+    this function is designed for closeset-wildreceipt to openset-wildreceipt.
+    It may not be suitable to your own dataset.
+
+    Args:
+        closeset_line (str): The string to be deserialized to
+            the closeset dictionary object.
+        merge_bg_others (bool): If True, give the same label to "background"
+            class and "others" class.
+        ignore_idx (int): Index for ``ignore`` class.
+        others_idx (int): Index for ``others`` class.
+    """
+    # Two labels at the same index of the following two lists
+    # make up a key-value pair. For example, in wildreceipt,
+    # closeset_key_inds[0] maps to "Store_name_key"
+    # and closeset_value_inds[0] maps to "Store_addr_value".
+    closeset_key_inds = list(range(2, others_idx, 2))
+    closeset_value_inds = list(range(1, others_idx, 2))
+
+    openset_node_label_mapping = {'bg': 0, 'key': 1, 'value': 2, 'others': 3}
+    if merge_bg_others:
+        openset_node_label_mapping['others'] = openset_node_label_mapping['bg']
+
+    closeset_obj = json.loads(closeset_line)
+    openset_obj = {
+        'file_name': closeset_obj['file_name'],
+        'height': closeset_obj['height'],
+        'width': closeset_obj['width'],
+        'annotations': []
+    }
+
+    edge_idx = 1
+    label_to_edge = {}
+    for anno in closeset_obj['annotations']:
+        label = anno['label']
+        if label == ignore_idx:
+            anno['label'] = openset_node_label_mapping['bg']
+            anno['edge'] = edge_idx
+            edge_idx += 1
+        elif label == others_idx:
+            anno['label'] = openset_node_label_mapping['others']
+            anno['edge'] = edge_idx
+            edge_idx += 1
+        else:
+            edge = label_to_edge.get(label, None)
+            if edge is not None:
+                anno['edge'] = edge
+                if label in closeset_key_inds:
+                    anno['label'] = openset_node_label_mapping['key']
+                elif label in closeset_value_inds:
+                    anno['label'] = openset_node_label_mapping['value']
+            else:
+                tmp_key = 'key'
+                if label in closeset_key_inds:
+                    label_with_same_edge = closeset_value_inds[
+                        closeset_key_inds.index(label)]
+                elif label in closeset_value_inds:
+                    label_with_same_edge = closeset_key_inds[
+                        closeset_value_inds.index(label)]
+                    tmp_key = 'value'
+                edge_counterpart = label_to_edge.get(label_with_same_edge,
+                                                     None)
+                if edge_counterpart is not None:
+                    anno['edge'] = edge_counterpart
+                else:
+                    anno['edge'] = edge_idx
+                    edge_idx += 1
+                anno['label'] = openset_node_label_mapping[tmp_key]
+                label_to_edge[label] = anno['edge']
+
+    openset_obj['annotations'] = closeset_obj['annotations']
+
+    return json.dumps(openset_obj, ensure_ascii=False)
+
+
+def process(closeset_file, openset_file, merge_bg_others=False, n_proc=10):
+    closeset_lines = list_from_file(closeset_file)
+
+    convert_func = partial(convert, merge_bg_others=merge_bg_others)
+
+    openset_lines = mmengine.track_parallel_progress(
+        convert_func, closeset_lines, nproc=n_proc)
+
+    list_to_file(openset_file, openset_lines)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('in_file', help='Annotation file for closeset.')
+    parser.add_argument('out_file', help='Annotation file for openset.')
+    parser.add_argument(
+        '--merge',
+        action='store_true',
+        help='Merge two classes: "background" and "others" in closeset '
+        'to one class in openset.')
+    parser.add_argument(
+        '--n_proc', type=int, default=10, help='Number of process.')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+
+    process(args.in_file, args.out_file, args.merge, args.n_proc)
+
+    print('finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/prepare_dataset.py b/mmocr-dev-1.x/tools/dataset_converters/prepare_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..84b8a0353c420adc696a628baa54829d28367020
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/prepare_dataset.py
@@ -0,0 +1,153 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os.path as osp
+import time
+import warnings
+
+from mmengine import Config
+
+from mmocr.datasets.preparers import DatasetPreparer
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Preparing datasets used in MMOCR.')
+    parser.add_argument(
+        'datasets',
+        help='A list of the dataset names that would like to prepare.',
+        nargs='+')
+    parser.add_argument(
+        '--nproc', help='Number of processes to run', default=4, type=int)
+    parser.add_argument(
+        '--task',
+        default='textdet',
+        choices=['textdet', 'textrecog', 'textspotting', 'kie'],
+        help='Task type. Options are "textdet", "textrecog", "textspotting"'
+        ' and "kie".')
+    parser.add_argument(
+        '--splits',
+        default=['train', 'test', 'val'],
+        help='A list of the split that would like to prepare.',
+        nargs='+')
+    parser.add_argument(
+        '--lmdb',
+        action='store_true',
+        default=False,
+        help='Whether to dump the textrecog dataset to LMDB format, It\'s a '
+        'shortcut to force the dataset to be dumped in lmdb format. '
+        'Applicable when --task=textrecog')
+    parser.add_argument(
+        '--overwrite-cfg',
+        action='store_true',
+        default=False,
+        help='Whether to overwrite the dataset config file if it already'
+        ' exists. If not specified, Dataset Preparer will not generate'
+        ' new config for datasets whose configs are already in base.')
+    parser.add_argument(
+        '--dataset-zoo-path',
+        default='./dataset_zoo',
+        help='Path to dataset zoo config files.')
+    args = parser.parse_args()
+    return args
+
+
+def parse_meta(task: str, meta_path: str) -> None:
+    """Parse meta file.
+
+    Args:
+        cfg_path (str): Path to meta file.
+    """
+    try:
+        meta = Config.fromfile(meta_path)
+    except FileNotFoundError:
+        return
+    assert task in meta['Data']['Tasks'], \
+        f'Task {task} not supported!'
+    # License related
+    if meta['Data']['License']['Type']:
+        print(f"\033[1;33;40mDataset Name: {meta['Name']}")
+        print(f"License Type: {meta['Data']['License']['Type']}")
+        print(f"License Link: {meta['Data']['License']['Link']}")
+        print(f"BibTeX: {meta['Paper']['BibTeX']}\033[0m")
+        print('\033[1;31;43mMMOCR does not own the dataset. Using this '
+              'dataset you must accept the license provided by the owners, '
+              'and cite the corresponding papers appropriately.')
+        print('If you do not agree with the above license, please cancel '
+              'the progress immediately by pressing ctrl+c. Otherwise, '
+              'you are deemed to accept the terms and conditions.\033[0m')
+        for i in range(5):
+            print(f'{5-i}...')
+            time.sleep(1)
+
+
+def force_lmdb(cfg):
+    """Force the dataset to be dumped in lmdb format.
+
+    Args:
+        cfg (Config): Config object.
+
+    Returns:
+        Config: Config object.
+    """
+    for split in ['train', 'val', 'test']:
+        preparer_cfg = cfg.get(f'{split}_preparer')
+        if preparer_cfg:
+            if preparer_cfg.get('dumper') is None:
+                raise ValueError(
+                    f'{split} split does not come with a dumper, '
+                    'so most likely the annotations are MMOCR-ready and do '
+                    'not need any adaptation, and it '
+                    'cannot be dumped in LMDB format.')
+            preparer_cfg.dumper['type'] = 'TextRecogLMDBDumper'
+
+    cfg.config_generator['dataset_name'] = f'{cfg.dataset_name}_lmdb'
+
+    for split in ['train_anns', 'val_anns', 'test_anns']:
+        if split in cfg.config_generator:
+            # It can be None when users want to clear out the default
+            # value
+            if not cfg.config_generator[split]:
+                continue
+            ann_list = cfg.config_generator[split]
+            for ann_dict in ann_list:
+                ann_dict['ann_file'] = (
+                    osp.splitext(ann_dict['ann_file'])[0] + '.lmdb')
+        else:
+            if split == 'train_anns':
+                ann_list = [dict(ann_file='textrecog_train.lmdb')]
+            elif split == 'test_anns':
+                ann_list = [dict(ann_file='textrecog_test.lmdb')]
+            else:
+                ann_list = []
+        cfg.config_generator[split] = ann_list
+
+    return cfg
+
+
+def main():
+    args = parse_args()
+    if args.lmdb and args.task != 'textrecog':
+        raise ValueError('--lmdb only works with --task=textrecog')
+    for dataset in args.datasets:
+        if not osp.isdir(osp.join(args.dataset_zoo_path, dataset)):
+            warnings.warn(f'{dataset} is not supported yet. Please check '
+                          'dataset zoo for supported datasets.')
+            continue
+        meta_path = osp.join(args.dataset_zoo_path, dataset, 'metafile.yml')
+        parse_meta(args.task, meta_path)
+        cfg_path = osp.join(args.dataset_zoo_path, dataset, args.task + '.py')
+        cfg = Config.fromfile(cfg_path)
+        if args.overwrite_cfg and cfg.get('config_generator',
+                                          None) is not None:
+            cfg.config_generator.overwrite_cfg = args.overwrite_cfg
+        cfg.nproc = args.nproc
+        cfg.task = args.task
+        cfg.dataset_name = dataset
+        if args.lmdb:
+            cfg = force_lmdb(cfg)
+        preparer = DatasetPreparer.from_file(cfg)
+        preparer.run(args.splits)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/art_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/art_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..9d3b6a25132752887cd3beaf82d515c53d4cc083
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/art_converter.py
@@ -0,0 +1,145 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import convert_annotations
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of ArT ')
+    parser.add_argument('root_path', help='Root dir path of ArT')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    args = parser.parse_args()
+    return args
+
+
+def collect_art_info(root_path, split, ratio, print_every=1000):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    {
+        'gt_1726': # 'gt_1726' is file name
+        [
+            {
+                'transcription': '燎申集团',
+                'points': [
+                    [141, 199],
+                    [237, 201],
+                    [313, 236],
+                    [357, 283],
+                    [359, 300],
+                    [309, 261],
+                    [233, 230],
+                    [140, 231]
+                ],
+                'language': 'Chinese',
+                'illegibility': False
+            },
+            ...
+        ],
+        ...
+    }
+
+
+    Args:
+        root_path (str): Root path to the dataset
+        split (str): Dataset split, which should be 'train' or 'val'
+        ratio (float): Split ratio for val set
+        print_every (int): Print log info per iteration
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path, 'annotations/train_labels.json')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+    img_prefixes = annotation.keys()
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(img_prefixes):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = img_prefixes, []
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    if split == 'train':
+        img_prefixes = trn_files
+    elif split == 'val':
+        img_prefixes = val_files
+    else:
+        raise NotImplementedError
+
+    img_infos = []
+    for i, prefix in enumerate(img_prefixes):
+        if i > 0 and i % print_every == 0:
+            print(f'{i}/{len(img_prefixes)}')
+        img_file = osp.join(root_path, 'imgs', prefix + '.jpg')
+        # Skip not exist images
+        if not osp.exists(img_file):
+            continue
+        img = mmcv.imread(img_file)
+
+        img_info = dict(
+            file_name=osp.join(osp.basename(img_file)),
+            height=img.shape[0],
+            width=img.shape[1],
+            segm_file=osp.join(osp.basename(annotation_path)))
+
+        anno_info = []
+        for ann in annotation[prefix]:
+            segmentation = []
+            for x, y in ann['points']:
+                segmentation.append(max(0, x))
+                segmentation.append(max(0, y))
+            xs, ys = segmentation[::2], segmentation[1::2]
+            x, y = min(xs), min(ys)
+            w, h = max(xs) - x, max(ys) - y
+            bbox = [x, y, w, h]
+            if ann['transcription'] == '###' or ann['illegibility']:
+                iscrowd = 1
+            else:
+                iscrowd = 0
+            anno = dict(
+                iscrowd=iscrowd,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+        img_info.update(anno_info=anno_info)
+        img_infos.append(img_info)
+
+    return img_infos
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    training_infos = collect_art_info(root_path, 'train', args.val_ratio)
+    convert_annotations(training_infos,
+                        osp.join(root_path, 'instances_training.json'))
+    if args.val_ratio > 0:
+        print('Processing validation set...')
+        val_infos = collect_art_info(root_path, 'val', args.val_ratio)
+        convert_annotations(val_infos, osp.join(root_path,
+                                                'instances_val.json'))
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/bid_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/bid_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..a16a3439e5cf1802e24505d97b1e94a790010698
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/bid_converter.py
@@ -0,0 +1,185 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_file = img_file.split('_')[0] + '_gt_ocr.txt'
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, img_file))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('_')[0] == osp.basename(gt_file).split(
+        '_')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.basename(img_file),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.basename(gt_file))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x, y, w, h, text
+    977, 152, 16, 49, NOME
+    962, 143, 12, 323, APPINHANESI BLAZEK PASSOTTO
+    906, 446, 12, 94, 206940361
+    905, 641, 12, 44, SPTC
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    with open(gt_file, encoding='latin1') as f:
+        anno_info = []
+        for line in f:
+            line = line.strip('\n')
+            if line[0] == '[' or line[0] == 'x':
+                continue
+            ann = line.split(',')
+            bbox = ann[0:4]
+            bbox = [int(coord) for coord in bbox]
+            x, y, w, h = bbox
+            segmentation = [x, y, x + w, y, x + w, y + h, x, y + h]
+            anno = dict(
+                iscrowd=0,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def split_train_val_list(full_list, val_ratio):
+    """Split list by val_ratio.
+
+    Args:
+        full_list (list): list to be split
+        val_ratio (float): split ratio for val set
+
+    return:
+        list(list, list): train_list and val_list
+    """
+    n_total = len(full_list)
+    offset = int(n_total * val_ratio)
+    if n_total == 0 or offset < 1:
+        return [], full_list
+    val_list = full_list[:offset]
+    train_list = full_list[offset:]
+    return [train_list, val_list]
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of BID ')
+    parser.add_argument('root_path', help='Root dir path of BID')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0., type=float)
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    with mmengine.Timer(print_tmpl='It takes {}s to convert BID annotation'):
+        files = collect_files(
+            osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'))
+        image_infos = collect_annotations(files, nproc=args.nproc)
+        if args.val_ratio:
+            image_infos = split_train_val_list(image_infos, args.val_ratio)
+            splits = ['training', 'val']
+        else:
+            image_infos = [image_infos]
+            splits = ['training']
+        for i, split in enumerate(splits):
+            dump_ocr_data(image_infos[i],
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/coco_to_line_dict.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/coco_to_line_dict.py
new file mode 100644
index 0000000000000000000000000000000000000000..7dcb5edb453edbc7904478de6d636b241a29336e
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/coco_to_line_dict.py
@@ -0,0 +1,67 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+
+import mmengine
+
+from mmocr.utils import list_to_file
+
+
+def parse_coco_json(in_path):
+    json_obj = mmengine.load(in_path)
+    image_infos = json_obj['images']
+    annotations = json_obj['annotations']
+    imgid2imgname = {}
+    img_ids = []
+    for image_info in image_infos:
+        imgid2imgname[image_info['id']] = image_info
+        img_ids.append(image_info['id'])
+    imgid2anno = {}
+    for img_id in img_ids:
+        imgid2anno[img_id] = []
+    for anno in annotations:
+        img_id = anno['image_id']
+        new_anno = {}
+        new_anno['iscrowd'] = anno['iscrowd']
+        new_anno['category_id'] = anno['category_id']
+        new_anno['bbox'] = anno['bbox']
+        new_anno['segmentation'] = anno['segmentation']
+        if img_id in imgid2anno.keys():
+            imgid2anno[img_id].append(new_anno)
+
+    return imgid2imgname, imgid2anno
+
+
+def gen_line_dict_file(out_path, imgid2imgname, imgid2anno):
+    lines = []
+    for key, value in imgid2imgname.items():
+        if key in imgid2anno:
+            anno = imgid2anno[key]
+            line_dict = {}
+            line_dict['file_name'] = value['file_name']
+            line_dict['height'] = value['height']
+            line_dict['width'] = value['width']
+            line_dict['annotations'] = anno
+            lines.append(json.dumps(line_dict))
+    list_to_file(out_path, lines)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--in-path', help='input json path with coco format')
+    parser.add_argument(
+        '--out-path', help='output txt path with line-json format')
+
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    imgid2imgname, imgid2anno = parse_coco_json(args.in_path)
+    gen_line_dict_file(args.out_path, imgid2imgname, imgid2anno)
+    print('finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/cocotext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/cocotext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..e4ef78ee39ffe945e1a7e5cf3eba87b19c0fd002
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/cocotext_converter.py
@@ -0,0 +1,124 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os.path as osp
+
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of COCO Text v2 ')
+    parser.add_argument('root_path', help='Root dir path of COCO Text v2')
+    args = parser.parse_args()
+    return args
+
+
+def collect_cocotext_info(root_path, split, print_every=1000):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    {
+        'anns':{
+            '45346':{
+                'mask': [468.9,286.7,468.9,295.2,493.0,295.8,493.0,287.2],
+                'class': 'machine printed',
+                'bbox': [468.9, 286.7, 24.1, 9.1], # x, y, w, h
+                'image_id': 217925,
+                'id': 45346,
+                'language': 'english', # 'english' or 'not english'
+                'area': 206.06,
+                'utf8_string': 'New',
+                'legibility': 'legible', # 'legible' or 'illegible'
+            },
+            ...
+        }
+        'imgs':{
+            '540965':{
+                'id': 540965,
+                'set': 'train', # 'train' or 'val'
+                'width': 640,
+                'height': 360,
+                'file_name': 'COCO_train2014_000000540965.jpg'
+            },
+            ...
+        }
+        'imgToAnns':{
+            '540965': [],
+            '260932': [63993, 63994, 63995, 63996, 63997, 63998, 63999],
+            ...
+        }
+    }
+
+    Args:
+        root_path (str): Root path to the dataset
+        split (str): Dataset split, which should be 'train' or 'val'
+        print_every (int): Print log information per iter
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path, 'annotations/cocotext.v2.json')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+
+    img_infos = []
+    for i, img_info in enumerate(annotation['imgs'].values()):
+        if i > 0 and i % print_every == 0:
+            print(f'{i}/{len(annotation["imgs"].values())}')
+
+        if img_info['set'] == split:
+            img_info['segm_file'] = annotation_path
+            ann_ids = annotation['imgToAnns'][str(img_info['id'])]
+            # Filter out images without text
+            if len(ann_ids) == 0:
+                continue
+            anno_info = []
+            for ann_id in ann_ids:
+                ann = annotation['anns'][str(ann_id)]
+
+                # Ignore illegible or non-English words
+                iscrowd = 1 if ann['language'] == 'not english' or ann[
+                    'legibility'] == 'illegible' else 0
+
+                x, y, w, h = ann['bbox']
+                x, y = max(0, math.floor(x)), max(0, math.floor(y))
+                w, h = math.ceil(w), math.ceil(h)
+                bbox = [x, y, w, h]
+                segmentation = [max(0, int(x)) for x in ann['mask']]
+                if len(segmentation) < 8 or len(segmentation) % 2 != 0:
+                    segmentation = [x, y, x + w, y, x + w, y + h, x, y + h]
+                anno = dict(
+                    iscrowd=iscrowd,
+                    category_id=1,
+                    bbox=bbox,
+                    area=ann['area'],
+                    segmentation=[segmentation])
+                anno_info.append(anno)
+            img_info.update(anno_info=anno_info)
+            img_infos.append(img_info)
+    return img_infos
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    training_infos = collect_cocotext_info(root_path, 'train')
+    dump_ocr_data(training_infos,
+                  osp.join(root_path, 'instances_training.json'), 'textdet')
+    print('Processing validation set...')
+    val_infos = collect_cocotext_info(root_path, 'val')
+    dump_ocr_data(val_infos, osp.join(root_path, 'instances_val.json'),
+                  'textdet')
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/data_migrator.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/data_migrator.py
new file mode 100644
index 0000000000000000000000000000000000000000..38da8a04861aa5d4f80dbeb65a6be5fdcd55acaf
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/data_migrator.py
@@ -0,0 +1,70 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+from collections import defaultdict
+from copy import deepcopy
+from typing import Dict, List
+
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_coco_json(in_path: str) -> List[Dict]:
+    """Load coco annotations into image_infos parsable by dump_ocr_data().
+
+    Args:
+        in_path (str): COCO text annotation path.
+
+    Returns:
+        list[dict]: List of image information dicts. To be used by
+        dump_ocr_data().
+    """
+    json_obj = mmengine.load(in_path)
+    image_infos = json_obj['images']
+    annotations = json_obj['annotations']
+    imgid2annos = defaultdict(list)
+    for anno in annotations:
+        new_anno = deepcopy(anno)
+        new_anno['category_id'] = 0  # Must be 0 for OCR tasks which stands
+        # for "text" category
+        imgid2annos[anno['image_id']].append(new_anno)
+
+    results = []
+    for image_info in image_infos:
+        image_info['anno_info'] = imgid2annos[image_info['id']]
+        results.append(image_info)
+
+    return results
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('in_path', help='Input json path in coco format.')
+    parser.add_argument(
+        'out_path', help='Output json path in openmmlab format.')
+    parser.add_argument(
+        '--task',
+        type=str,
+        default='auto',
+        choices=['auto', 'textdet', 'textspotter'],
+        help='Output annotation type, defaults to "auto", which decides the'
+        'best task type based on whether "text" is annotated. Other options'
+        'are "textdet" and "textspotter".')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    image_infos = parse_coco_json(args.in_path)
+    task_name = args.task
+    if task_name == 'auto':
+        task_name = 'textdet'
+        if 'text' in image_infos[0]['anno_info'][0]:
+            task_name = 'textspotter'
+    dump_ocr_data(image_infos, args.out_path, task_name)
+    print('finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/detext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/detext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..d99378e44559222d0d32f1cccd4ccf673a33b6df
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/detext_converter.py
@@ -0,0 +1,162 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+import numpy as np
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img in os.listdir(img_dir):
+        imgs_list.append(osp.join(img_dir, img))
+        ann_list.append(osp.join(gt_dir, 'gt_' + img.replace('jpg', 'txt')))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    # Annotation Format
+    # x1, y1, x2, y2, x3, y3, x4, y4, transcript
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    with open(gt_file) as f:
+        anno_info = []
+        annotations = f.readlines()
+        for ann in annotations:
+            try:
+                ann_box = np.array(ann.split(',')[0:8]).astype(int).tolist()
+            except ValueError:
+                # skip invalid annotation line
+                continue
+            x = max(0, min(ann_box[0::2]))
+            y = max(0, min(ann_box[1::2]))
+            w, h = max(ann_box[0::2]) - x, max(ann_box[1::2]) - y
+            bbox = [x, y, w, h]
+            segmentation = ann_box
+            word = ann.split(',')[-1].replace('\n', '').strip()
+
+            anno = dict(
+                iscrowd=0 if word != '###' else 1,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of DeText ')
+    parser.add_argument('root_path', help='Root dir path of DeText')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['training', 'val']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert DeText annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs', split),
+                osp.join(root_path, 'annotations', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            dump_ocr_data(image_infos,
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/funsd_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/funsd_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..7be887d2637b99f0113f99f06a05f7591c061f39
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/funsd_converter.py
@@ -0,0 +1,159 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for gt_file in os.listdir(gt_dir):
+        ann_list.append(osp.join(gt_dir, gt_file))
+        imgs_list.append(osp.join(img_dir, gt_file.replace('.json', '.png')))
+
+    files = list(zip(sorted(imgs_list), sorted(ann_list)))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.json':
+        img_info = load_json_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_json_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation = mmengine.load(gt_file)
+    anno_info = []
+    for form in annotation['form']:
+        for ann in form['words']:
+
+            iscrowd = 1 if len(ann['text']) == 0 else 0
+
+            x1, y1, x2, y2 = ann['box']
+            x = max(0, min(math.floor(x1), math.floor(x2)))
+            y = max(0, min(math.floor(y1), math.floor(y2)))
+            w, h = math.ceil(abs(x2 - x1)), math.ceil(abs(y2 - y1))
+            bbox = [x, y, w, h]
+            segmentation = [x, y, x + w, y, x + w, y + h, x, y + h]
+
+            anno = dict(
+                iscrowd=iscrowd,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of FUNSD ')
+    parser.add_argument('root_path', help='Root dir path of FUNSD')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['training', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert FUNSD annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs'),
+                osp.join(root_path, 'annotations', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            dump_ocr_data(image_infos,
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/hiertext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/hiertext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..9ca0163099c815382fe3362da1b0525d109bc23f
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/hiertext_converter.py
@@ -0,0 +1,152 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+import os.path as osp
+
+import numpy as np
+from shapely.geometry import Polygon
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_level_info(annotation):
+    """Collect information from any level in HierText.
+
+    Args:
+        annotation (dict): dict at each level
+
+    Return:
+        anno (dict): dict containing annotations
+    """
+    iscrowd = 0 if annotation['legible'] else 1
+    vertices = np.array(annotation['vertices'])
+    polygon = Polygon(vertices)
+    area = polygon.area
+    min_x, min_y, max_x, max_y = polygon.bounds
+    bbox = [min_x, min_y, max_x - min_x, max_y - min_y]
+    segmentation = [i for j in vertices for i in j]
+    anno = dict(
+        iscrowd=iscrowd,
+        category_id=1,
+        bbox=bbox,
+        area=area,
+        segmentation=[segmentation])
+    return anno
+
+
+def collect_hiertext_info(root_path, level, split, print_every=1000):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    {
+        "info": {
+            "date": "release date",
+            "version": "current version"
+        },
+        "annotations": [  // List of dictionaries, one for each image.
+            {
+            "image_id": "the filename of corresponding image.",
+            "image_width": image_width,  // (int) The image width.
+            "image_height": image_height, // (int) The image height.
+            "paragraphs": [  // List of paragraphs.
+                {
+                "vertices": [[x1, y1], [x2, y2],...,[xn, yn]]
+                "legible": true
+                "lines": [
+                    {
+                    "vertices": [[x1, y1], [x2, y2],...,[x4, y4]]
+                    "text": L
+                    "legible": true,
+                    "handwritten": false
+                    "vertical": false,
+                    "words": [
+                        {
+                        "vertices": [[x1, y1], [x2, y2],...,[xm, ym]]
+                        "text": "the text content of this word",
+                        "legible": true
+                        "handwritten": false,
+                        "vertical": false,
+                        }, ...
+                    ]
+                    }, ...
+                ]
+                }, ...
+            ]
+            }, ...
+        ]
+        }
+
+    Args:
+        root_path (str): Root path to the dataset
+        level (str): Level of annotations,  which should be 'word', 'line',
+            or 'paragraphs'
+        split (str): Dataset split, which should be 'train' or 'validation'
+        print_every (int): Print log information per iter
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path, 'annotations/' + split + '.jsonl')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = json.load(open(annotation_path))['annotations']
+    img_infos = []
+    for i, img_annos in enumerate(annotation):
+        if i > 0 and i % print_every == 0:
+            print(f'{i}/{len(annotation)}')
+        img_info = {}
+        img_info['file_name'] = img_annos['image_id'] + '.jpg'
+        img_info['height'] = img_annos['image_height']
+        img_info['width'] = img_annos['image_width']
+        img_info['segm_file'] = annotation_path
+        anno_info = []
+        for paragraph in img_annos['paragraphs']:
+            if level == 'paragraph':
+                anno = collect_level_info(paragraph)
+                anno_info.append(anno)
+            elif level == 'line':
+                for line in paragraph['lines']:
+                    anno = collect_level_info(line)
+                    anno_info.append(anno)
+            elif level == 'word':
+                for line in paragraph['lines']:
+                    for word in line['words']:
+                        anno = collect_level_info(line)
+                        anno_info.append(anno)
+        img_info.update(anno_info=anno_info)
+        img_infos.append(img_info)
+    return img_infos
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of HierText ')
+    parser.add_argument('root_path', help='Root dir path of HierText')
+    parser.add_argument(
+        '--level',
+        default='word',
+        help='HierText provides three levels of annotation',
+        choices=['word', 'line', 'paragraph'])
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    training_infos = collect_hiertext_info(root_path, args.level, 'train')
+    dump_ocr_data(training_infos,
+                  osp.join(root_path, 'instances_training.json'), 'textdet')
+    print('Processing validation set...')
+    val_infos = collect_hiertext_info(root_path, args.level, 'val')
+    dump_ocr_data(val_infos, osp.join(root_path, 'instances_val.json'),
+                  'textdet')
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/ic11_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/ic11_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..1a5683f4ae17e52fa8f13fc542a8424ae6cb488f
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/ic11_converter.py
@@ -0,0 +1,173 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+from PIL import Image
+
+from mmocr.utils import dump_ocr_data
+
+
+def convert_gif(img_path):
+    """Convert the gif image to png format.
+
+    Args:
+        img_path (str): The path to the gif image
+    """
+    img = Image.open(img_path)
+    dst_path = img_path.replace('gif', 'png')
+    img.save(dst_path)
+    os.remove(img_path)
+    print(f'Convert {img_path} to {dst_path}')
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img in os.listdir(img_dir):
+        img_path = osp.join(img_dir, img)
+        # mmcv cannot read gif images, so convert them to png
+        if img.endswith('gif'):
+            convert_gif(img_path)
+            img_path = img_path.replace('gif', 'png')
+        imgs_list.append(img_path)
+        ann_list.append(osp.join(gt_dir, 'gt_' + img.split('.')[0] + '.txt'))
+
+    files = list(zip(sorted(imgs_list), sorted(ann_list)))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    left, top, right, bottom, "transcription"
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    anno_info = []
+    with open(gt_file) as f:
+        lines = f.readlines()
+        for line in lines:
+            xmin, ymin, xmax, ymax = line.split(',')[0:4]
+            x = max(0, int(xmin))
+            y = max(0, int(ymin))
+            w = int(xmax) - x
+            h = int(ymax) - y
+            bbox = [x, y, w, h]
+            segmentation = [x, y, x + w, y, x + w, y + h, x, y + h]
+
+            anno = dict(
+                iscrowd=0,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of IC11')
+    parser.add_argument('root_path', help='Root dir path of IC11')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['training', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(print_tmpl='It takes {}s to convert annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs', split),
+                osp.join(root_path, 'annotations', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            dump_ocr_data(image_infos,
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/ilst_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/ilst_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..56ac54e3e30ed95159b25bee69afe39c47896a2a
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/ilst_converter.py
@@ -0,0 +1,206 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+import xml.etree.ElementTree as ET
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_path = osp.join(gt_dir, img_file.split('.')[0] + '.xml')
+        if os.path.exists(ann_path):
+            ann_list.append(ann_path)
+            imgs_list.append(osp.join(img_dir, img_file))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    try:
+        img_info = dict(
+            file_name=osp.join(osp.basename(img_file)),
+            height=img.shape[0],
+            width=img.shape[1],
+            segm_file=osp.join(osp.basename(gt_file)))
+    except AttributeError:
+        print(f'Skip broken img {img_file}')
+        return None
+
+    if osp.splitext(gt_file)[1] == '.xml':
+        img_info = load_xml_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_xml_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    <annotations>
+    ...
+        <object>
+            <name>SMT</name>
+            <pose>Unspecified</pose>
+            <truncated>0</truncated>
+            <difficult>0</difficult>
+            <bndbox>
+                <xmin>157</xmin>
+                <ymin>294</ymin>
+                <xmax>237</xmax>
+                <ymax>357</ymax>
+            </bndbox>
+        <object>
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    obj = ET.parse(gt_file)
+    root = obj.getroot()
+    anno_info = []
+    for object in root.iter('object'):
+        word = object.find('name').text
+        iscrowd = 1 if len(word) == 0 else 0
+        x1 = int(object.find('bndbox').find('xmin').text)
+        y1 = int(object.find('bndbox').find('ymin').text)
+        x2 = int(object.find('bndbox').find('xmax').text)
+        y2 = int(object.find('bndbox').find('ymax').text)
+
+        x = max(0, min(x1, x2))
+        y = max(0, min(y1, y2))
+        w, h = abs(x2 - x1), abs(y2 - y1)
+        bbox = [x1, y1, w, h]
+        segmentation = [x, y, x + w, y, x + w, y + h, x, y + h]
+        anno = dict(
+            iscrowd=iscrowd,
+            category_id=1,
+            bbox=bbox,
+            area=w * h,
+            segmentation=[segmentation])
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def split_train_val_list(full_list, val_ratio):
+    """Split list by val_ratio.
+
+    Args:
+        full_list (list): List to be split
+        val_ratio (float): Split ratio for val set
+
+    return:
+        list(list, list): Train_list and val_list
+    """
+
+    n_total = len(full_list)
+    offset = int(n_total * val_ratio)
+    if n_total == 0 or offset < 1:
+        return [], full_list
+    val_list = full_list[:offset]
+    train_list = full_list[offset:]
+    return [train_list, val_list]
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of ILST ')
+    parser.add_argument('root_path', help='Root dir path of ILST')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0., type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    with mmengine.Timer(print_tmpl='It takes {}s to convert ILST annotation'):
+        files = collect_files(
+            osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'))
+        image_infos = collect_annotations(files, nproc=args.nproc)
+        if args.val_ratio:
+            image_infos = split_train_val_list(image_infos, args.val_ratio)
+            splits = ['training', 'val']
+        else:
+            image_infos = [image_infos]
+            splits = ['training']
+        for i, split in enumerate(splits):
+            dump_ocr_data(
+                list(filter(None, image_infos[i])),
+                osp.join(root_path, 'instances_' + split + '.json'), 'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/imgur_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/imgur_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..f6c19cd33cdf27bc085563992a126aa02028c43e
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/imgur_converter.py
@@ -0,0 +1,152 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os.path as osp
+
+import mmcv
+import mmengine
+import numpy as np
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training, validation and test set of IMGUR ')
+    parser.add_argument('root_path', help='Root dir path of IMGUR')
+    args = parser.parse_args()
+
+    return args
+
+
+def collect_imgur_info(root_path, annotation_filename, print_every=1000):
+
+    annotation_path = osp.join(root_path, 'annotations', annotation_filename)
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+    images = annotation['index_to_ann_map'].keys()
+    img_infos = []
+    for i, img_name in enumerate(images):
+        if i >= 0 and i % print_every == 0:
+            print(f'{i}/{len(images)}')
+
+        img_path = osp.join(root_path, 'imgs', img_name + '.jpg')
+
+        # Skip not exist images
+        if not osp.exists(img_path):
+            continue
+
+        img = mmcv.imread(img_path, 'unchanged')
+
+        # Skip broken images
+        if img is None:
+            continue
+
+        img_info = dict(
+            file_name=img_name + '.jpg',
+            height=img.shape[0],
+            width=img.shape[1])
+
+        anno_info = []
+        for ann_id in annotation['index_to_ann_map'][img_name]:
+            ann = annotation['ann_id'][ann_id]
+
+            # The original annotation is oriented rects [x, y, w, h, a]
+            box = np.fromstring(
+                ann['bounding_box'][1:-2], sep=',', dtype=float)
+            quadrilateral = convert_oriented_box(box)
+
+            xs, ys = quadrilateral[::2], quadrilateral[1::2]
+            x = max(0, math.floor(min(xs)))
+            y = max(0, math.floor(min(ys)))
+            w = math.floor(max(xs)) - x
+            h = math.floor(max(ys)) - y
+            bbox = [x, y, w, h]
+            segmentation = quadrilateral
+
+            anno = dict(
+                iscrowd=0,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+        img_info.update(anno_info=anno_info)
+        img_infos.append(img_info)
+
+    return img_infos
+
+
+def convert_oriented_box(box):
+
+    x_ctr, y_ctr, width, height, angle = box[:5]
+    angle = -angle * math.pi / 180
+
+    tl_x, tl_y, br_x, br_y = -width / 2, -height / 2, width / 2, height / 2
+    rect = np.array([[tl_x, br_x, br_x, tl_x], [tl_y, tl_y, br_y, br_y]])
+    R = np.array([[np.cos(angle), -np.sin(angle)],
+                  [np.sin(angle), np.cos(angle)]])
+    poly = R.dot(rect)
+    x0, x1, x2, x3 = poly[0, :4] + x_ctr
+    y0, y1, y2, y3 = poly[1, :4] + y_ctr
+    poly = np.array([x0, y0, x1, y1, x2, y2, x3, y3], dtype=np.float32)
+    poly = get_best_begin_point_single(poly)
+
+    return poly.tolist()
+
+
+def get_best_begin_point_single(coordinate):
+
+    x1, y1, x2, y2, x3, y3, x4, y4 = coordinate
+    xmin = min(x1, x2, x3, x4)
+    ymin = min(y1, y2, y3, y4)
+    xmax = max(x1, x2, x3, x4)
+    ymax = max(y1, y2, y3, y4)
+    combine = [[[x1, y1], [x2, y2], [x3, y3], [x4, y4]],
+               [[x2, y2], [x3, y3], [x4, y4], [x1, y1]],
+               [[x3, y3], [x4, y4], [x1, y1], [x2, y2]],
+               [[x4, y4], [x1, y1], [x2, y2], [x3, y3]]]
+    dst_coordinate = [[xmin, ymin], [xmax, ymin], [xmax, ymax], [xmin, ymax]]
+    force = 100000000.0
+    force_flag = 0
+    for i in range(4):
+        temp_force = cal_line_length(combine[i][0], dst_coordinate[0]) \
+            + cal_line_length(combine[i][1], dst_coordinate[1]) \
+            + cal_line_length(combine[i][2], dst_coordinate[2]) \
+            + cal_line_length(combine[i][3], dst_coordinate[3])
+        if temp_force < force:
+            force = temp_force
+            force_flag = i
+    if force_flag != 0:
+        pass
+
+    return np.array(combine[force_flag]).reshape(8)
+
+
+def cal_line_length(point1, point2):
+
+    return math.sqrt(
+        math.pow(point1[0] - point2[0], 2) +
+        math.pow(point1[1] - point2[1], 2))
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['train', 'val', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert IMGUR annotation'):
+            anno_infos = collect_imgur_info(
+                root_path, f'imgur5k_annotations_{split}.json')
+            dump_ocr_data(anno_infos,
+                          osp.join(root_path, f'instances_{split}.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/kaist_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/kaist_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..3f95804d1dda27a88db247e177c3f7522361faf5
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/kaist_converter.py
@@ -0,0 +1,201 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+import xml.etree.ElementTree as ET
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_list.append(osp.join(gt_dir, img_file.split('.')[0] + '.xml'))
+        imgs_list.append(osp.join(img_dir, img_file))
+
+    all_files = list(zip(sorted(imgs_list), sorted(ann_list)))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.xml':
+        img_info = load_xml_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_xml_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Annotation Format
+    <image>
+        <imageName>DSC02306.JPG</imageName>
+        <resolution x="640" y="480" />
+        <words>
+            <word x="61" y="140" width="566" height="107">
+                <character x="61" y="147" width="75" height="94" char="C" />
+                <character x="173" y="147" width="77" height="93" char="L" />
+                <character x="251" y="146" width="83" height="96" char="A" />
+                <character x="335" y="146" width="75" height="97" char="V" />
+                <character x="409" y="140" width="52" height="105" char="I" />
+                <character x="464" y="147" width="76" height="96" char="T" />
+                <character x="538" y="154" width="89" height="93" char="A" />
+            </word>
+        </words>
+        <illumination>no</illumination>
+        <difficulty>2</difficulty>
+        <tag>
+        </tag>
+    </image>
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    obj = ET.parse(gt_file)
+    root = obj.getroot()
+    anno_info = []
+    for word in root.iter('word'):
+        x, y = max(0, int(word.attrib['x'])), max(0, int(word.attrib['y']))
+        w, h = int(word.attrib['width']), int(word.attrib['height'])
+        bbox = [x, y, w, h]
+        segmentation = [x, y, x + w, y, x + w, y + h, x, y + h]
+
+        anno = dict(
+            iscrowd=0,
+            category_id=1,
+            bbox=bbox,
+            area=w * h,
+            segmentation=[segmentation])
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of KAIST ')
+    parser.add_argument('root_path', help='Root dir path of KAIST')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert KAIST Training annotation'):
+        dump_ocr_data(trn_infos, osp.join(root_path,
+                                          'instances_training.json'),
+                      'textdet')
+
+    # Val set
+    if len(val_files) > 0:
+        val_infos = collect_annotations(val_files, nproc=args.nproc)
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert KAIST Val annotation'):
+            dump_ocr_data(val_infos, osp.join(root_path, 'instances_val.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/lsvt_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/lsvt_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..aa44d10663e762ddbcccb354b65cfd349634a6ce
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/lsvt_converter.py
@@ -0,0 +1,130 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of LSVT ')
+    parser.add_argument('root_path', help='Root dir path of LSVT')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    args = parser.parse_args()
+    return args
+
+
+def collect_lsvt_info(root_path, split, ratio, print_every=1000):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    [
+        {'gt_1234': # 'gt_1234' is file name
+            [
+                {
+                    'transcription': '一站式购物中心',
+                    'points': [[45, 272], [215, 273], [212, 296], [45, 290]]
+                    'illegibility': False
+                }, ...
+            ]
+        }
+    ]
+
+
+    Args:
+        root_path (str): Root path to the dataset
+        split (str): Dataset split, which should be 'train' or 'val'
+        ratio (float): Split ratio for val set
+        print_every (int): Print log info per iteration
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path, 'annotations/train_full_labels.json')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+    img_prefixes = annotation.keys()
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(img_prefixes):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = img_prefixes, []
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    if split == 'train':
+        img_prefixes = trn_files
+    elif split == 'val':
+        img_prefixes = val_files
+    else:
+        raise NotImplementedError
+
+    img_infos = []
+    for i, prefix in enumerate(img_prefixes):
+        if i > 0 and i % print_every == 0:
+            print(f'{i}/{len(img_prefixes)}')
+        img_file = osp.join(root_path, 'imgs', prefix + '.jpg')
+        # Skip not exist images
+        if not osp.exists(img_file):
+            continue
+        img = mmcv.imread(img_file)
+
+        img_info = dict(
+            file_name=osp.join(osp.basename(img_file)),
+            height=img.shape[0],
+            width=img.shape[1],
+            segm_file=osp.join(osp.basename(annotation_path)))
+
+        anno_info = []
+        for ann in annotation[prefix]:
+            segmentation = []
+            for x, y in ann['points']:
+                segmentation.append(max(0, x))
+                segmentation.append(max(0, y))
+            xs, ys = segmentation[::2], segmentation[1::2]
+            x, y = min(xs), min(ys)
+            w, h = max(xs) - x, max(ys) - y
+            bbox = [x, y, w, h]
+            anno = dict(
+                iscrowd=1 if ann['illegibility'] else 0,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+        img_info.update(anno_info=anno_info)
+        img_infos.append(img_info)
+
+    return img_infos
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    training_infos = collect_lsvt_info(root_path, 'train', args.val_ratio)
+    dump_ocr_data(training_infos,
+                  osp.join(root_path, 'instances_training.json'), 'textdet')
+    if args.val_ratio > 0:
+        print('Processing validation set...')
+        val_infos = collect_lsvt_info(root_path, 'val', args.val_ratio)
+        dump_ocr_data(val_infos, osp.join(root_path, 'instances_val.json'),
+                      'textdet')
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/lv_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/lv_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..6efcc14317da87adc655f4096f5a4db3cbfb7558
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/lv_converter.py
@@ -0,0 +1,182 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+import xml.etree.ElementTree as ET
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(data_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        data_dir (str): The directory to dataset
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(data_dir, str)
+    assert data_dir
+
+    ann_list, imgs_list = [], []
+    for video_dir in os.listdir(data_dir):
+        for frame_dir in os.listdir(osp.join(data_dir, video_dir)):
+            crt_dir = osp.join(data_dir, video_dir, frame_dir)
+            if not osp.isdir(crt_dir):
+                continue
+            for crt_file in os.listdir(crt_dir):
+                if crt_file.endswith('xml'):
+                    ann_path = osp.join(crt_dir, crt_file)
+                    img_path = osp.join(crt_dir,
+                                        crt_file.replace('xml', 'png'))
+                    if os.path.exists(img_path):
+                        ann_list.append(ann_path)
+                        imgs_list.append(img_path)
+                    else:
+                        continue
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {data_dir}'
+    print(f'Loaded {len(files)} images from {data_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+    img_file = os.path.split(img_file)[-1]
+
+    img_info = dict(
+        file_name=img_file,
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.xml':
+        img_info = load_xml_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_xml_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    <annotation>
+        <object>
+            <name>hierarchy</name>
+            <pose>Unspecified</pose>
+            <truncated>0</truncated>
+            <difficult>0</difficult>
+            <bndbox>
+                <xmin>657</xmin>
+                <ymin>467</ymin>
+                <xmax>839</xmax>
+                <ymax>557</ymax>
+            </bndbox>
+        </object>
+    </annotation>
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    obj = ET.parse(gt_file)
+    root = obj.getroot()
+    anno_info = []
+    for obj in root.iter('object'):
+        x = max(0, int(obj.find('bndbox').find('xmin').text))
+        y = max(0, int(obj.find('bndbox').find('ymin').text))
+        xmax = int(obj.find('bndbox').find('xmax').text)
+        ymax = int(obj.find('bndbox').find('ymax').text)
+
+        w, h = abs(xmax - x), abs(ymax - y)
+        bbox = [x, y, w, h]
+        segmentation = [x, y, x + w, y, x + w, y + h, x, y + h]
+
+        anno = dict(
+            iscrowd=0,
+            category_id=1,
+            bbox=bbox,
+            area=w * h,
+            segmentation=[segmentation])
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training, val and test set of Lecture Video DB ')
+    parser.add_argument('root_path', help='Root dir path of Lecture Video DB')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['train', 'val', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert LV annotation'):
+            files = collect_files(osp.join(root_path, 'imgs', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            dump_ocr_data(image_infos,
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/mtwi_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/mtwi_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..1c9fde3bf870ffcd1ea482e3d73bfc138f51a381
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/mtwi_converter.py
@@ -0,0 +1,203 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import cv2
+import mmcv
+import mmengine
+from PIL import Image
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for ann_file in os.listdir(gt_dir):
+        img_file = osp.join(img_dir, ann_file.replace('txt', 'jpg'))
+        # This dataset contains some images obtained from .gif,
+        # which cannot be loaded by mmcv.imread(), convert them
+        # to RGB mode.
+        try:
+            if mmcv.imread(img_file) is None:
+                print(f'Convert {img_file} to RGB mode.')
+                img = Image.open(img_file)
+                img = img.convert('RGB')
+                img.save(img_file)
+        except cv2.error:
+            print(f'Skip broken img {img_file}')
+            continue
+
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(img_file)
+
+    all_files = list(zip(imgs_list, ann_list))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file)
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x1,y1,x2,y2,x3,y3,x4,y4,text
+
+    45.45,226.83,11.87,181.79,183.84,13.1,233.79,49.95,时尚袋袋
+    345.98,311.18,345.98,347.21,462.26,347.21,462.26,311.18,73774
+    462.26,292.34,461.44,299.71,502.39,299.71,502.39,292.34,73/74/737
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    anno_info = []
+    with open(gt_file) as f:
+        lines = f.readlines()
+    for line in lines:
+        points = line.split(',')[0:8]
+        word = line.split(',')[8].rstrip('\n')
+        segmentation = [math.floor(float(pt)) for pt in points]
+        x = max(0, min(segmentation[0::2]))
+        y = max(0, min(segmentation[1::2]))
+        w = abs(max(segmentation[0::2]) - x)
+        h = abs(max(segmentation[1::2]) - y)
+        bbox = [x, y, w, h]
+
+        anno = dict(
+            iscrowd=1 if word == '###' else 0,
+            category_id=1,
+            bbox=bbox,
+            area=w * h,
+            segmentation=[segmentation])
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of MTWI.')
+    parser.add_argument('root_path', help='Root dir path of MTWI')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert MTWI Training annotation'):
+        dump_ocr_data(trn_infos, osp.join(root_path,
+                                          'instances_training.json'),
+                      'textdet')
+
+    # Val set
+    if len(val_files) > 0:
+        val_infos = collect_annotations(val_files, nproc=args.nproc)
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert MTWI Val annotation'):
+            dump_ocr_data(val_infos, osp.join(root_path, 'instances_val.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/naf_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/naf_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..2e43c8fba909723edd55f7b13b2a9cfa0b6c2e15
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/naf_converter.py
@@ -0,0 +1,197 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, split_info):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        split_info (dict): The split information for train/val/test
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(split_info, dict)
+    assert split_info
+
+    ann_list, imgs_list = [], []
+    for group in split_info:
+        for img in split_info[group]:
+            image_path = osp.join(img_dir, img)
+            anno_path = osp.join(gt_dir, 'groups', group,
+                                 img.replace('jpg', 'json'))
+
+            # Filtering out the missing images
+            if not osp.exists(image_path) or not osp.exists(anno_path):
+                continue
+
+            imgs_list.append(image_path)
+            ann_list.append(anno_path)
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # Read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.json':
+        img_info = load_json_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_json_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Annotation Format
+    {
+        'textBBs': [{
+            'poly_points': [[435,1406], [466,1406], [466,1439], [435,1439]],
+            "type": "text",
+            "id": "t1",
+        }], ...
+    }
+
+    Some special characters are used in the transcription:
+    "«text»" indicates that "text" had a strikethrough
+    "¿" indicates the transcriber could not read a character
+    "§" indicates the whole line or word was illegible
+    "" (empty string) is if the field was blank
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(gt_file, str)
+    assert isinstance(img_info, dict)
+
+    annotation = mmengine.load(gt_file)
+    anno_info = []
+
+    # 'textBBs' contains the printed texts of the table while 'fieldBBs'
+    #  contains the text filled by human.
+    for box_type in ['textBBs', 'fieldBBs']:
+        for anno in annotation[box_type]:
+            # Skip blanks
+            if box_type == 'fieldBBs':
+                if anno['type'] == 'blank':
+                    continue
+
+            xs, ys, segmentation = [], [], []
+            for p in anno['poly_points']:
+                xs.append(p[0])
+                ys.append(p[1])
+                segmentation.append(p[0])
+                segmentation.append(p[1])
+            x, y = max(0, min(xs)), max(0, min(ys))
+            w, h = max(xs) - x, max(ys) - y
+            bbox = [x, y, w, h]
+
+            anno = dict(
+                iscrowd=0,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training, val, and test set of NAF ')
+    parser.add_argument('root_path', help='Root dir path of NAF')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    split_info = mmengine.load(
+        osp.join(root_path, 'annotations', 'train_valid_test_split.json'))
+    split_info['training'] = split_info.pop('train')
+    split_info['val'] = split_info.pop('valid')
+    for split in ['training', 'val', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert NAF annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs'),
+                osp.join(root_path, 'annotations'), split_info[split])
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            dump_ocr_data(image_infos,
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/rctw_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/rctw_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..cc46dd85999c616a89167a56de27ccf2f306ec4a
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/rctw_converter.py
@@ -0,0 +1,193 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for ann_file in os.listdir(gt_dir):
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, ann_file.replace('txt', 'jpg')))
+
+    all_files = list(zip(imgs_list, ann_list))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file)
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x1, y1, x2, y2, x3, y3, x4, y4, difficult, text
+
+    390,902,1856,902,1856,1225,390,1225,0,"金氏眼镜"
+    1875,1170,2149,1170,2149,1245,1875,1245,0,"创于1989"
+    2054,1277,2190,1277,2190,1323,2054,1323,0,"城建店"
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    anno_info = []
+    with open(gt_file, encoding='utf-8-sig') as f:
+        lines = f.readlines()
+    for line in lines:
+        points = line.split(',')[0:8]
+        word = line.split(',')[9].rstrip('\n').strip('"')
+        difficult = 1 if line.split(',')[8] != '0' else 0
+        segmentation = [int(pt) for pt in points]
+        x = max(0, min(segmentation[0::2]))
+        y = max(0, min(segmentation[1::2]))
+        w = abs(max(segmentation[0::2]) - x)
+        h = abs(max(segmentation[1::2]) - y)
+        bbox = [x, y, w, h]
+
+        if word == '###' or difficult == 1:
+            iscrowd = 1
+        else:
+            iscrowd = 0
+
+        anno = dict(
+            iscrowd=iscrowd,
+            category_id=1,
+            bbox=bbox,
+            area=w * h,
+            segmentation=[segmentation])
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of RCTW.')
+    parser.add_argument('root_path', help='Root dir path of RCTW')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert RCTW Training annotation'):
+        trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+        dump_ocr_data(trn_infos, osp.join(root_path,
+                                          'instances_training.json'),
+                      'textdet')
+
+    # Val set
+    if len(val_files) > 0:
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert RCTW Val annotation'):
+            val_infos = collect_annotations(val_files, nproc=args.nproc)
+            dump_ocr_data(val_infos, osp.join(root_path, 'instances_val.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/rects_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/rects_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..75f3b734607af2c44b78273df3401457166432c2
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/rects_converter.py
@@ -0,0 +1,207 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for ann_file in os.listdir(gt_dir):
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, ann_file.replace('json', 'jpg')))
+
+    all_files = list(zip(imgs_list, ann_list))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file)
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.json':
+        img_info = load_json_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_json_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+
+    {
+        "chars": [
+            {
+                "ignore": 0,
+                "transcription": "H",
+                "points": [25, 175, 112, 175, 112, 286, 25, 286]
+            },
+            {
+                "ignore": 0,
+                "transcription": "O",
+                "points": [102, 182, 210, 182, 210, 273, 102, 273]
+            }, ...
+        ]
+        "lines": [
+            {
+                "ignore": 0,
+                "transcription": "HOKI",
+                "points": [23, 173, 327, 180, 327, 290, 23, 283]
+            },
+            {
+                "ignore": 0,
+                "transcription": "TEA",
+                "points": [368, 180, 621, 180, 621, 294, 368, 294]
+            }, ...
+        ]
+    }
+
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation = mmengine.load(gt_file)
+    anno_info = []
+    for line in annotation['lines']:
+        segmentation = line['points']
+        x = max(0, min(segmentation[0::2]))
+        y = max(0, min(segmentation[1::2]))
+        w = abs(max(segmentation[0::2]) - x)
+        h = abs(max(segmentation[1::2]) - y)
+        bbox = [x, y, w, h]
+
+        anno = dict(
+            iscrowd=line['ignore'],
+            category_id=1,
+            bbox=bbox,
+            area=w * h,
+            segmentation=[segmentation])
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of ReCTS.')
+    parser.add_argument('root_path', help='Root dir path of ReCTS')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert ReCTS Training annotation'):
+        dump_ocr_data(trn_infos, osp.join(root_path,
+                                          'instances_training.json'),
+                      'textdet')
+
+    # Val set
+    if len(val_files) > 0:
+        val_infos = collect_annotations(val_files, nproc=args.nproc)
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert ReCTS Val annotation'):
+            dump_ocr_data(val_infos, osp.join(root_path, 'instances_val.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/sroie_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/sroie_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..7ee0725e2fde0533248ed584c290377416bd5b46
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/sroie_converter.py
@@ -0,0 +1,168 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+import numpy as np
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for gt_file in os.listdir(gt_dir):
+        # Filtering repeated and missing images
+        if '(' in gt_file or gt_file == 'X51006619570.txt':
+            continue
+        ann_list.append(osp.join(gt_dir, gt_file))
+        imgs_list.append(osp.join(img_dir, gt_file.replace('.txt', '.jpg')))
+
+    files = list(zip(sorted(imgs_list), sorted(ann_list)))
+    assert len(files), f'No images found in {img_dir}'
+
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Args:
+        gt_file (list): The list of tuples (image_file, groundtruth_file)
+        img_info (int): The dict of the img and annotation information
+
+    Returns:
+        img_info (list): The dict of the img and annotation information
+    """
+
+    with open(gt_file, encoding='unicode_escape') as f:
+        anno_info = []
+        for ann in f.readlines():
+
+            # annotation format [x1, y1, x2, y2, x3, y3, x4, y4, transcript]
+            try:
+                ann_box = np.array(ann.split(',')[0:8]).astype(int).tolist()
+            except ValueError:
+                # skip invalid annotation line
+                continue
+            x = max(0, min(ann_box[0::2]))
+            y = max(0, min(ann_box[1::2]))
+            w, h = max(ann_box[0::2]) - x, max(ann_box[1::2]) - y
+            bbox = [x, y, w, h]
+            segmentation = ann_box
+
+            anno = dict(
+                iscrowd=0,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of SROIE')
+    parser.add_argument('root_path', help='Root dir path of SROIE')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['training', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert SROIE annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs', split),
+                osp.join(root_path, 'annotations', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            dump_ocr_data(image_infos,
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textdet/vintext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textdet/vintext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..fb7a364d9591bec7785a73d571670121bb985978
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textdet/vintext_converter.py
@@ -0,0 +1,171 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_file = 'gt_' + str(int(img_file[2:6])) + '.txt'
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, img_file))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert int(osp.basename(gt_file)[3:-4]) == int(
+        osp.basename(img_file)[2:-4])
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.basename(img_file),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.basename(gt_file))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x1,y1,x2,y2,x3,y3,x4,y4,text
+    118,15,147,15,148,46,118,46,LƯỢNG
+    149,9,165,9,165,43,150,43,TỐT
+    167,9,180,9,179,43,167,42,ĐỂ
+    181,12,193,12,193,43,181,43,CÓ
+    195,13,215,14,215,46,196,46,VIỆC
+    217,13,237,14,239,47,217,46,LÀM,
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    with open(gt_file, encoding='utf-8') as f:
+        anno_info = []
+        for line in f:
+            line = line.strip('\n')
+            ann = line.split(',')
+            bbox = ann[0:8]
+            word = line[len(','.join(bbox)) + 1:]
+            bbox = [int(coord) for coord in bbox]
+            segmentation = bbox
+            x_min = min(bbox[0], bbox[2], bbox[4], bbox[6])
+            x_max = max(bbox[0], bbox[2], bbox[4], bbox[6])
+            y_min = min(bbox[1], bbox[3], bbox[5], bbox[7])
+            y_max = max(bbox[1], bbox[3], bbox[5], bbox[7])
+            w = x_max - x_min
+            h = y_max - y_min
+            bbox = [x_min, y_min, w, h]
+            iscrowd = 1 if word == '###' else 0
+
+            anno = dict(
+                iscrowd=iscrowd,
+                category_id=1,
+                bbox=bbox,
+                area=w * h,
+                segmentation=[segmentation])
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of VinText ')
+    parser.add_argument('root_path', help='Root dir path of VinText')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    for split in ['training', 'test', 'unseen_test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert VinText annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs', split),
+                osp.join(root_path, 'annotations'))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            dump_ocr_data(image_infos,
+                          osp.join(root_path, 'instances_' + split + '.json'),
+                          'textdet')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/art_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/art_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..24acaad289be221558701d19a95ea7ce24a7e0f9
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/art_converter.py
@@ -0,0 +1,108 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os.path as osp
+
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of ArT ')
+    parser.add_argument('root_path', help='Root dir path of ArT')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args()
+    return args
+
+
+def convert_art(root_path, split, ratio):
+    """Collect the annotation information and crop the images.
+
+    The annotation format is as the following:
+    {
+        "gt_2836_0": [
+            {
+                "transcription": "URDER",
+                "points": [
+                    [25, 51],
+                    [0, 2],
+                    [21, 0],
+                    [42, 43]
+                ],
+                "language": "Latin",
+                "illegibility": false
+            }
+        ], ...
+    }
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or val
+        ratio (float): Split ratio for val set
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path,
+                               'annotations/train_task2_labels.json')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+    img_prefixes = annotation.keys()
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(img_prefixes):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = img_prefixes, []
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    if split == 'train':
+        img_prefixes = trn_files
+    elif split == 'val':
+        img_prefixes = val_files
+    else:
+        raise NotImplementedError
+
+    img_info = []
+    for prefix in img_prefixes:
+        text_label = annotation[prefix][0]['transcription']
+        dst_img_name = prefix + '.jpg'
+
+        img_info.append({
+            'file_name': dst_img_name,
+            'anno_info': [{
+                'text': text_label
+            }]
+        })
+
+    ensure_ascii = dict(ensure_ascii=False)
+    dump_ocr_data(img_info, osp.join(root_path, f'{split.lower()}_label.json'),
+                  'textrecog', **ensure_ascii)
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    convert_art(root_path=root_path, split='train', ratio=args.val_ratio)
+    if args.val_ratio > 0:
+        print('Processing validation set...')
+        convert_art(root_path=root_path, split='val', ratio=args.val_ratio)
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/bid_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/bid_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..ec61b64bb42effc6194e1661a819224fa02b2c13
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/bid_converter.py
@@ -0,0 +1,247 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_file = img_file.split('_')[0] + '_gt_ocr.txt'
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, img_file))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('_')[0] == osp.basename(gt_file).split(
+        '_')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.basename(img_file),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.basename(gt_file))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x, y, w, h, text
+    977, 152, 16, 49, NOME
+    962, 143, 12, 323, APPINHANESI BLAZEK PASSOTTO
+    906, 446, 12, 94, 206940361
+    905, 641, 12, 44, SPTC
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    with open(gt_file, encoding='latin1') as f:
+        anno_info = []
+        for line in f:
+            line = line.strip('\n')
+            # Ignore hard samples
+            if line[0] == '[' or line[0] == 'x':
+                continue
+            ann = line.split(',')
+            bbox = ann[0:4]
+            bbox = [int(coord) for coord in bbox]
+            x, y, w, h = bbox
+            # in case ',' exists in label
+            word = ','.join(ann[4:]) if len(ann[4:]) > 1 else ann[4]
+            # remove the initial space
+            word = word.strip()
+            bbox = [x, y, x + w, y, x + w, y + h, x, y + h]
+
+            anno = dict(bbox=bbox, word=word)
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def split_train_val_list(full_list, val_ratio):
+    """Split list by val_ratio.
+
+    Args:
+        full_list (list): List to be splited
+        val_ratio (float): Split ratio for val set
+
+    return:
+        list(list, list): Train_list and val_list
+    """
+    n_total = len(full_list)
+    offset = int(n_total * val_ratio)
+    if n_total == 0 or offset < 1:
+        return [], full_list
+    val_list = full_list[:offset]
+    train_list = full_list[offset:]
+    return [train_list, val_list]
+
+
+def generate_ann(root_path, image_infos, preserve_vertical, val_ratio, format):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+        val_ratio (float): Split ratio for val set
+        format (str): Using jsonl(dict) or str to format annotations
+    """
+
+    assert val_ratio <= 1.
+
+    if val_ratio:
+        image_infos = split_train_val_list(image_infos, val_ratio)
+        splits = ['training', 'val']
+
+    else:
+        image_infos = [image_infos]
+        splits = ['training']
+
+    for i, split in enumerate(splits):
+        dst_image_root = osp.join(root_path, 'crops', split)
+        ignore_image_root = osp.join(root_path, 'ignores', split)
+        os.makedirs(dst_image_root, exist_ok=True)
+
+        img_info = []
+        for image_info in image_infos[i]:
+            index = 1
+            src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+            image = mmcv.imread(src_img_path)
+            src_img_root = image_info['file_name'].split('.')[0]
+
+            for anno in image_info['anno_info']:
+                word = anno['word']
+                dst_img = crop_img(image, anno['bbox'], 0, 0)
+                h, w, _ = dst_img.shape
+
+                dst_img_name = f'{src_img_root}_{index}.png'
+                index += 1
+                # Skip invalid annotations
+                if min(dst_img.shape) == 0:
+                    continue
+                # Skip vertical texts
+                if not preserve_vertical and h / w > 2 and split == 'training':
+                    dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                    mmcv.imwrite(dst_img, dst_img_path)
+                    continue
+
+                dst_img_path = osp.join(dst_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+
+                img_info.append({
+                    'file_name': dst_img_name,
+                    'anno_info': [{
+                        'text': word
+                    }]
+                })
+
+        dump_ocr_data(img_info,
+                      osp.join(root_path, f'{split.lower()}_label.json'),
+                      'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of BID ')
+    parser.add_argument('root_path', help='Root dir path of BID')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0., type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    with mmengine.Timer(print_tmpl='It takes {}s to convert BID annotation'):
+        files = collect_files(
+            osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'))
+        image_infos = collect_annotations(files, nproc=args.nproc)
+        generate_ann(root_path, image_infos, args.preserve_vertical,
+                     args.val_ratio, args.format)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/cocotext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/cocotext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..413c09b6c32c7f31ec86fe46c42d69809986bbf9
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/cocotext_converter.py
@@ -0,0 +1,174 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os.path as osp
+from functools import partial
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of COCO Text v2 ')
+    parser.add_argument('root_path', help='Root dir path of COCO Text v2')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    args = parser.parse_args()
+    return args
+
+
+def process_img(args, src_image_root, dst_image_root, ignore_image_root,
+                preserve_vertical, split):
+    # Dirty hack for multi-processing
+    img_idx, img_info, anns = args
+    src_img = mmcv.imread(osp.join(src_image_root, img_info['file_name']))
+    label = []
+    for ann_idx, ann in enumerate(anns):
+        text_label = ann['utf8_string']
+
+        # Ignore illegible or non-English words
+        if ann['language'] == 'not english':
+            continue
+        if ann['legibility'] == 'illegible':
+            continue
+
+        x, y, w, h = ann['bbox']
+        x, y = max(0, math.floor(x)), max(0, math.floor(y))
+        w, h = math.ceil(w), math.ceil(h)
+        dst_img = src_img[y:y + h, x:x + w]
+        dst_img_name = f'img_{img_idx}_{ann_idx}.jpg'
+
+        if not preserve_vertical and h / w > 2 and split == 'train':
+            dst_img_path = osp.join(ignore_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+            continue
+
+        dst_img_path = osp.join(dst_image_root, dst_img_name)
+        mmcv.imwrite(dst_img, dst_img_path)
+
+        label.append({
+            'file_name': dst_img_name,
+            'anno_info': [{
+                'text': text_label
+            }]
+        })
+
+    return label
+
+
+def convert_cocotext(root_path,
+                     split,
+                     preserve_vertical,
+                     nproc,
+                     img_start_idx=0):
+    """Collect the annotation information and crop the images.
+
+    The annotation format is as the following:
+    {
+        'anns':{
+            '45346':{
+                'mask': [468.9,286.7,468.9,295.2,493.0,295.8,493.0,287.2],
+                'class': 'machine printed',
+                'bbox': [468.9, 286.7, 24.1, 9.1], # x, y, w, h
+                'image_id': 217925,
+                'id': 45346,
+                'language': 'english', # 'english' or 'not english'
+                'area': 206.06,
+                'utf8_string': 'New',
+                'legibility': 'legible', # 'legible' or 'illegible'
+            },
+            ...
+        }
+        'imgs':{
+            '540965':{
+                'id': 540965,
+                'set': 'train', # 'train' or 'val'
+                'width': 640,
+                'height': 360,
+                'file_name': 'COCO_train2014_000000540965.jpg'
+            },
+            ...
+        }
+        'imgToAnns':{
+            '540965': [],
+            '260932': [63993, 63994, 63995, 63996, 63997, 63998, 63999],
+            ...
+        }
+    }
+
+    Args:
+        root_path (str): Root path to the dataset
+        split (str): Dataset split, which should be 'train' or 'val'
+        preserve_vertical (bool): Whether to preserve vertical texts
+        nproc (int): Number of processes
+        img_start_idx (int): Index of start image
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path, 'annotations/cocotext.v2.json')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+    # outputs
+    dst_label_file = osp.join(root_path, f'{split}_label.json')
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    src_image_root = osp.join(root_path, 'imgs')
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    process_img_with_path = partial(
+        process_img,
+        src_image_root=src_image_root,
+        dst_image_root=dst_image_root,
+        ignore_image_root=ignore_image_root,
+        preserve_vertical=preserve_vertical,
+        split=split)
+    tasks = []
+    for img_idx, img_info in enumerate(annotation['imgs'].values()):
+        if img_info['set'] == split:
+            ann_ids = annotation['imgToAnns'][str(img_info['id'])]
+            anns = [annotation['anns'][str(ann_id)] for ann_id in ann_ids]
+            tasks.append((img_idx + img_start_idx, img_info, anns))
+    labels_list = mmengine.track_parallel_progress(
+        process_img_with_path, tasks, keep_order=True, nproc=nproc)
+    final_labels = []
+    for label_list in labels_list:
+        final_labels += label_list
+    dump_ocr_data(final_labels, dst_label_file, 'textrecog')
+
+    return len(annotation['imgs'])
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    num_train_imgs = convert_cocotext(
+        root_path=root_path,
+        split='train',
+        preserve_vertical=args.preserve_vertical,
+        nproc=args.nproc)
+    print('Processing validation set...')
+    convert_cocotext(
+        root_path=root_path,
+        split='val',
+        preserve_vertical=args.preserve_vertical,
+        nproc=args.nproc,
+        img_start_idx=num_train_imgs)
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/data_migrator.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/data_migrator.py
new file mode 100644
index 0000000000000000000000000000000000000000..9fb0f205b67a4d55bb1208feba4e4db65c0b78e8
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/data_migrator.py
@@ -0,0 +1,98 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+from typing import List, Tuple
+
+from mmocr.datasets import RecogLMDBDataset
+from mmocr.utils import StringStripper, dump_ocr_data, recog_anno_to_imginfo
+
+
+def parse_legacy_data(in_path: str,
+                      format: str) -> Tuple[List[str], List[str]]:
+    """Load legacy data and return a list of file paths and labels.
+
+    Args:
+        in_path (str): Path to annotation file.
+        format (str): Annotation format. Choices are 'txt', 'json' and 'lmdb'.
+            For 'lmdb' format, the lmdb file should only contains labels. For
+            lmdb file with labels and images, the conversion is unnecessary.
+    Returns:
+        tuple(list[str], list[str]): File paths and labels.
+    """
+    file_paths = []
+    labels = []
+    strip_cls = StringStripper()
+    if format == 'lmdb':
+        dataset = RecogLMDBDataset(
+            in_path,
+            parser_cfg=dict(type='LineJsonParser', keys=['filename', 'text']))
+        for data_info in dataset:
+            file_path = data_info['img_path']
+            label = data_info['instances'][0]['text']
+            file_path = strip_cls(file_path)
+            label = strip_cls(label)
+            # MJ's file_path starts with './'
+            if file_path.startswith('./'):
+                file_path = file_path[2:]
+
+            file_paths.append(file_path)
+            labels.append(label)
+        return file_paths, labels
+    else:
+        with open(in_path) as f:
+            if format == 'txt':
+                for line in f:
+                    line = strip_cls(line)
+                    file_path, label = line.split()[:2]
+                    # MJ's file_path starts with './'
+                    if file_path.startswith('./'):
+                        file_path = file_path[2:]
+
+                    file_paths.append(file_path)
+                    labels.append(label)
+            elif format == 'jsonl':
+                for line in f:
+                    datum = json.loads(line)
+                    file_path = datum['filename']
+                    # MJ's file_path starts with './'
+                    if file_path.startswith('./'):
+                        file_path = file_path[2:]
+
+                    file_paths.append(file_path)
+                    labels.append(datum['text'])
+
+    return file_paths, labels
+
+
+def parse_args():
+    """Parse input arguments."""
+    parser = argparse.ArgumentParser(
+        description='Convert annotations for'
+        'text recognition tasks in MMOCR 0.x into the latest openmmlab format.'
+    )
+    parser.add_argument(
+        'in_path', help='The path to legacy recognition data file')
+    parser.add_argument(
+        'out_path', help='The output json path in openmmlab format')
+    parser.add_argument(
+        '--format',
+        choices=['txt', 'jsonl', 'lmdb'],
+        type=str,
+        default='txt',
+        help='Legacy data format')
+    args = parser.parse_args()
+    if args.out_path.split('.')[-1] != 'json':
+        raise ValueError('The output path must be a json file.')
+    return args
+
+
+def main():
+    args = parse_args()
+    file_paths, labels = parse_legacy_data(args.in_path, args.format)
+    img_infos = recog_anno_to_imginfo(file_paths, labels)
+    dump_ocr_data(img_infos, args.out_path, 'textrecog')
+    print('finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/detext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/detext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..360dc5a6f4555d45fb69533f033710eb58e12cad
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/detext_converter.py
@@ -0,0 +1,212 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+import numpy as np
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img in os.listdir(img_dir):
+        imgs_list.append(osp.join(img_dir, img))
+        ann_list.append(osp.join(gt_dir, 'gt_' + img.replace('jpg', 'txt')))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    with open(gt_file) as f:
+        anno_info = []
+        annotations = f.readlines()
+        for ann in annotations:
+            # Annotation format [x1, y1, x2, y2, x3, y3, x4, y4, transcript]
+            try:
+                bbox = np.array(ann.split(',')[0:8]).astype(int).tolist()
+            except ValueError:
+                # Skip invalid annotation line
+                continue
+            word = ann.split(',')[-1].replace('\n', '').strip()
+
+            # Skip samples without recog gt
+            if word == '###':
+                continue
+            anno = dict(bbox=bbox, word=word)
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+    """
+
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'val':
+        dst_label_file = osp.join(root_path, 'val_label.json')
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', split,
+                                image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+            h, w, _ = dst_img.shape
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0 or len(word) == 0:
+                continue
+            # Filter out vertical texts
+            if not preserve_vertical and h / w > 2 and split == 'training':
+                dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                continue
+
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of DeText ')
+    parser.add_argument('root_path', help='Root dir path of DeText')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['training', 'val']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert DeText annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs', split),
+                osp.join(root_path, 'annotations', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            generate_ann(root_path, split, image_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/funsd_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/funsd_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..a8da8ab00183f20ec749585bde1bb6958a48f9d0
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/funsd_converter.py
@@ -0,0 +1,210 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for gt_file in os.listdir(gt_dir):
+        ann_list.append(osp.join(gt_dir, gt_file))
+        imgs_list.append(osp.join(img_dir, gt_file.replace('.json', '.png')))
+
+    files = list(zip(sorted(imgs_list), sorted(ann_list)))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.json':
+        img_info = load_json_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_json_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation = mmengine.load(gt_file)
+    anno_info = []
+    for form in annotation['form']:
+        for ann in form['words']:
+
+            # Ignore illegible samples
+            if len(ann['text']) == 0:
+                continue
+
+            x1, y1, x2, y2 = ann['box']
+            x = max(0, min(math.floor(x1), math.floor(x2)))
+            y = max(0, min(math.floor(y1), math.floor(y2)))
+            w, h = math.ceil(abs(x2 - x1)), math.ceil(abs(y2 - y1))
+            bbox = [x, y, x + w, y, x + w, y + h, x, y + h]
+            word = ann['text']
+
+            anno = dict(bbox=bbox, word=word)
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+    """
+
+    dst_image_root = osp.join(root_path, 'crops', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'test':
+        dst_label_file = osp.join(root_path, 'test_label.json')
+    os.makedirs(dst_image_root, exist_ok=True)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'])
+            h, w, _ = dst_img.shape
+
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0:
+                continue
+            # Skip vertical texts
+            if not preserve_vertical and h / w > 2:
+                continue
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of FUNSD ')
+    parser.add_argument('root_path', help='Root dir path of FUNSD')
+    parser.add_argument(
+        '--preserve_vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['training', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert FUNSD annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs'),
+                osp.join(root_path, 'annotations', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            generate_ann(root_path, split, image_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/hiertext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/hiertext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..948142446e30ceea2c1b58cbcd7aec930a982482
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/hiertext_converter.py
@@ -0,0 +1,236 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+import math
+import os.path as osp
+from functools import partial
+
+import mmcv
+import mmengine
+import numpy as np
+from shapely.geometry import Polygon
+
+from mmocr.utils import dump_ocr_data
+
+
+def seg2bbox(seg):
+    """Convert segmentation to bbox.
+
+    Args:
+        seg (list(int | float)): A set of coordinates
+    """
+    if len(seg) == 4:
+        min_x = min(seg[0], seg[2], seg[4], seg[6])
+        max_x = max(seg[0], seg[2], seg[4], seg[6])
+        min_y = min(seg[1], seg[3], seg[5], seg[7])
+        max_y = max(seg[1], seg[3], seg[5], seg[7])
+    else:
+        seg = np.array(seg).reshape(-1, 2)
+        polygon = Polygon(seg)
+        min_x, min_y, max_x, max_y = polygon.bounds
+    bbox = [min_x, min_y, max_x - min_x, max_y - min_y]
+    return bbox
+
+
+def process_level(
+    src_img,
+    annotation,
+    dst_image_root,
+    ignore_image_root,
+    preserve_vertical,
+    split,
+    para_idx,
+    img_idx,
+    line_idx,
+    word_idx=None,
+):
+    vertices = annotation['vertices']
+    text_label = annotation['text']
+    segmentation = [i for j in vertices for i in j]
+    x, y, w, h = seg2bbox(segmentation)
+    x, y = max(0, math.floor(x)), max(0, math.floor(y))
+    w, h = math.ceil(w), math.ceil(h)
+    dst_img = src_img[y:y + h, x:x + w]
+    if word_idx:
+        dst_img_name = f'img_{img_idx}_{para_idx}_{line_idx}_{word_idx}.jpg'
+    else:
+        dst_img_name = f'img_{img_idx}_{para_idx}_{line_idx}.jpg'
+    if not preserve_vertical and h / w > 2 and split == 'train':
+        dst_img_path = osp.join(ignore_image_root, dst_img_name)
+        mmcv.imwrite(dst_img, dst_img_path)
+        return None
+
+    dst_img_path = osp.join(dst_image_root, dst_img_name)
+    mmcv.imwrite(dst_img, dst_img_path)
+
+    label = {'file_name': dst_img_name, 'anno_info': [{'text': text_label}]}
+
+    return label
+
+
+def process_img(args, src_image_root, dst_image_root, ignore_image_root, level,
+                preserve_vertical, split):
+    # Dirty hack for multi-processing
+    img_idx, img_annos = args
+    src_img = mmcv.imread(
+        osp.join(src_image_root, img_annos['image_id'] + '.jpg'))
+    labels = []
+    for para_idx, paragraph in enumerate(img_annos['paragraphs']):
+        for line_idx, line in enumerate(paragraph['lines']):
+            if level == 'line':
+                # Ignore illegible words
+                if line['legible']:
+
+                    label = process_level(src_img, line, dst_image_root,
+                                          ignore_image_root, preserve_vertical,
+                                          split, para_idx, img_idx, line_idx)
+                    if label is not None:
+                        labels.append(label)
+            elif level == 'word':
+                for word_idx, word in enumerate(line['words']):
+                    if not word['legible']:
+                        continue
+                    label = process_level(src_img, word, dst_image_root,
+                                          ignore_image_root, preserve_vertical,
+                                          split, para_idx, img_idx, line_idx,
+                                          word_idx)
+                    if label is not None:
+                        labels.append(label)
+    return labels
+
+
+def convert_hiertext(
+    root_path,
+    split,
+    level,
+    preserve_vertical,
+    nproc,
+):
+    """Collect the annotation information and crop the images.
+
+    The annotation format is as the following:
+    {
+        "info": {
+            "date": "release date",
+            "version": "current version"
+        },
+        "annotations": [  // List of dictionaries, one for each image.
+            {
+            "image_id": "the filename of corresponding image.",
+            "image_width": image_width,  // (int) The image width.
+            "image_height": image_height, // (int) The image height.
+            "paragraphs": [  // List of paragraphs.
+                {
+                "vertices": [[x1, y1], [x2, y2],...,[xn, yn]]
+                "legible": true
+                "lines": [
+                    {
+                    "vertices": [[x1, y1], [x2, y2],...,[x4, y4]]
+                    "text": L
+                    "legible": true,
+                    "handwritten": false
+                    "vertical": false,
+                    "words": [
+                        {
+                        "vertices": [[x1, y1], [x2, y2],...,[xm, ym]]
+                        "text": "the text content of this word",
+                        "legible": true
+                        "handwritten": false,
+                        "vertical": false,
+                        }, ...
+                    ]
+                    }, ...
+                ]
+                }, ...
+            ]
+            }, ...
+        ]
+        }
+
+    Args:
+        root_path (str): Root path to the dataset
+        split (str): Dataset split, which should be 'train' or 'val'
+        level (str): Crop word or line level instances
+        preserve_vertical (bool): Whether to preserve vertical texts
+        nproc (int): Number of processes
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path, 'annotations/' + split + '.jsonl')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = json.load(open(annotation_path))['annotations']
+    # outputs
+    dst_label_file = osp.join(root_path, f'{split}_label.json')
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    src_image_root = osp.join(root_path, 'imgs', split)
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    process_img_with_path = partial(
+        process_img,
+        src_image_root=src_image_root,
+        dst_image_root=dst_image_root,
+        ignore_image_root=ignore_image_root,
+        level=level,
+        preserve_vertical=preserve_vertical,
+        split=split)
+    tasks = []
+    for img_idx, img_info in enumerate(annotation):
+        tasks.append((img_idx, img_info))
+    labels_list = mmengine.track_parallel_progress(
+        process_img_with_path, tasks, keep_order=True, nproc=nproc)
+
+    final_labels = []
+    for label_list in labels_list:
+        final_labels += label_list
+
+    dump_ocr_data(final_labels, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of HierText')
+    parser.add_argument('root_path', help='Root dir path of HierText')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--level',
+        default='word',
+        help='Crop word or line level instance',
+        choices=['word', 'line'])
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    convert_hiertext(
+        root_path=root_path,
+        split='train',
+        level=args.level,
+        preserve_vertical=args.preserve_vertical,
+        nproc=args.nproc)
+    print('Processing validation set...')
+    convert_hiertext(
+        root_path=root_path,
+        split='val',
+        level=args.level,
+        preserve_vertical=args.preserve_vertical,
+        nproc=args.nproc)
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/ic11_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/ic11_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..3de125d39bd87c137b2ed1d470fa6bcfd19836ba
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/ic11_converter.py
@@ -0,0 +1,66 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os.path as osp
+
+from mmocr.utils import dump_ocr_data
+
+
+def convert_annotations(root_path, split):
+    """Convert original annotations to mmocr format.
+
+    The annotation format of this dataset is as the following:
+        word_1.png, "flying"
+        word_2.png, "today"
+        word_3.png, "means"
+    See the format of converted annotation in mmocr.utils.dump_ocr_data.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: Train or Test
+    """
+    assert isinstance(root_path, str)
+    assert isinstance(split, str)
+
+    img_info = []
+    with open(
+            osp.join(root_path, 'annotations',
+                     f'Challenge1_{split}_Task3_GT.txt'),
+            encoding='"utf-8-sig') as f:
+        annos = f.readlines()
+    for anno in annos:
+        # text may contain comma ','
+        dst_img_name, word = anno.split(', "')
+        word = word.replace('"\n', '')
+
+        img_info.append({
+            'file_name': dst_img_name,
+            'anno_info': [{
+                'text': word
+            }]
+        })
+
+    return img_info
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of IC11')
+    parser.add_argument('root_path', help='Root dir path of IC11')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['Train', 'Test']:
+        img_info = convert_annotations(root_path, split)
+        dump_ocr_data(img_info,
+                      osp.join(root_path, f'{split.lower()}_label.json'),
+                      'textrecog')
+        print(f'{split} split converted.')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/ilst_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/ilst_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..01ce4bd17f57bf1281fe3b254e39d37c0f92c7a7
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/ilst_converter.py
@@ -0,0 +1,260 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+import xml.etree.ElementTree as ET
+
+import mmcv
+import mmengine
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_path = osp.join(gt_dir, img_file.split('.')[0] + '.xml')
+        if os.path.exists(ann_path):
+            ann_list.append(ann_path)
+            imgs_list.append(osp.join(img_dir, img_file))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    try:
+        img_info = dict(
+            file_name=osp.join(osp.basename(img_file)),
+            height=img.shape[0],
+            width=img.shape[1],
+            segm_file=osp.join(osp.basename(gt_file)))
+    except AttributeError:
+        print(f'Skip broken img {img_file}')
+        return None
+
+    if osp.splitext(gt_file)[1] == '.xml':
+        img_info = load_xml_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_xml_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    <annotations>
+    ...
+        <object>
+            <name>SMT</name>
+            <pose>Unspecified</pose>
+            <truncated>0</truncated>
+            <difficult>0</difficult>
+            <bndbox>
+                <xmin>157</xmin>
+                <ymin>294</ymin>
+                <xmax>237</xmax>
+                <ymax>357</ymax>
+            </bndbox>
+        <object>
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    obj = ET.parse(gt_file)
+    root = obj.getroot()
+    anno_info = []
+    for object in root.iter('object'):
+        word = object.find('name').text
+        x1 = int(object.find('bndbox').find('xmin').text)
+        y1 = int(object.find('bndbox').find('ymin').text)
+        x2 = int(object.find('bndbox').find('xmax').text)
+        y2 = int(object.find('bndbox').find('ymax').text)
+
+        x = max(0, min(x1, x2))
+        y = max(0, min(y1, y2))
+        w, h = abs(x2 - x1), abs(y2 - y1)
+        bbox = [x, y, x + w, y, x + w, y + h, x, y + h]
+        anno = dict(bbox=bbox, word=word)
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def split_train_val_list(full_list, val_ratio):
+    """Split list by val_ratio.
+
+    Args:
+        full_list (list): List to be splited
+        val_ratio (float): Split ratio for val set
+
+    return:
+        list(list, list): Train_list and val_list
+    """
+    n_total = len(full_list)
+    offset = int(n_total * val_ratio)
+    if n_total == 0 or offset < 1:
+        return [], full_list
+    val_list = full_list[:offset]
+    train_list = full_list[offset:]
+    return [train_list, val_list]
+
+
+def generate_ann(root_path, image_infos, preserve_vertical, val_ratio):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+        val_ratio (float): Split ratio for val set
+    """
+
+    assert val_ratio <= 1.
+
+    if val_ratio:
+        image_infos = split_train_val_list(image_infos, val_ratio)
+        splits = ['training', 'val']
+
+    else:
+        image_infos = [image_infos]
+        splits = ['training']
+
+    for i, split in enumerate(splits):
+        dst_image_root = osp.join(root_path, 'crops', split)
+        ignore_image_root = osp.join(root_path, 'ignores', split)
+        dst_label_file = osp.join(root_path, f'{split}_label.json')
+        os.makedirs(dst_image_root, exist_ok=True)
+
+        img_info = []
+        for image_info in image_infos[i]:
+            index = 1
+            src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+            image = mmcv.imread(src_img_path)
+            src_img_root = image_info['file_name'].split('.')[0]
+
+            for anno in image_info['anno_info']:
+                word = anno['word']
+                dst_img = crop_img(image, anno['bbox'], 0, 0)
+                h, w, _ = dst_img.shape
+
+                dst_img_name = f'{src_img_root}_{index}.png'
+                index += 1
+                # Skip invalid annotations
+                if min(dst_img.shape) == 0:
+                    continue
+                # Skip vertical texts
+                if not preserve_vertical and h / w > 2 and split == 'training':
+                    dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                    mmcv.imwrite(dst_img, dst_img_path)
+                    continue
+
+                dst_img_path = osp.join(dst_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                img_info.append({
+                    'file_name': dst_img_name,
+                    'anno_info': [{
+                        'text': word
+                    }]
+                })
+
+        ensure_ascii = dict(ensure_ascii=False)
+        dump_ocr_data(img_info, dst_label_file, 'textrecog', **ensure_ascii)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of ILST ')
+    parser.add_argument('root_path', help='Root dir path of ILST')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0., type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args(['data/IIIT-ILST'])
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    with mmengine.Timer(print_tmpl='It takes {}s to convert ILST annotation'):
+        files = collect_files(
+            osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'))
+        image_infos = collect_annotations(files, nproc=args.nproc)
+        # filter broken images
+        image_infos = list(filter(None, image_infos))
+        generate_ann(root_path, image_infos, args.preserve_vertical,
+                     args.val_ratio)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/imgur_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/imgur_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..34d161eb3d39674dc5a64d98248e00d8760e0c42
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/imgur_converter.py
@@ -0,0 +1,175 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+import numpy as np
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training, validation and test set of IMGUR ')
+    parser.add_argument('root_path', help='Root dir path of IMGUR')
+    args = parser.parse_args()
+
+    return args
+
+
+def collect_imgur_info(root_path, annotation_filename, print_every=1000):
+
+    annotation_path = osp.join(root_path, 'annotations', annotation_filename)
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+    images = annotation['index_to_ann_map'].keys()
+    img_infos = []
+    for i, img_name in enumerate(images):
+        if i >= 0 and i % print_every == 0:
+            print(f'{i}/{len(images)}')
+
+        img_path = osp.join(root_path, 'imgs', img_name + '.jpg')
+
+        # Skip not exist images
+        if not osp.exists(img_path):
+            continue
+
+        img = mmcv.imread(img_path, 'unchanged')
+
+        # Skip broken images
+        if img is None:
+            continue
+
+        img_info = dict(
+            file_name=img_name + '.jpg',
+            height=img.shape[0],
+            width=img.shape[1])
+
+        anno_info = []
+        for ann_id in annotation['index_to_ann_map'][img_name]:
+            ann = annotation['ann_id'][ann_id]
+
+            # The original annotation is oriented rects [x, y, w, h, a]
+            box = np.fromstring(
+                ann['bounding_box'][1:-2], sep=',', dtype=float)
+            bbox = convert_oriented_box(box)
+            word = ann['word']
+
+            anno = dict(bbox=bbox, word=word)
+            anno_info.append(anno)
+        img_info.update(anno_info=anno_info)
+        img_infos.append(img_info)
+
+    return img_infos
+
+
+def convert_oriented_box(box):
+
+    x_ctr, y_ctr, width, height, angle = box[:5]
+    angle = -angle * math.pi / 180
+
+    tl_x, tl_y, br_x, br_y = -width / 2, -height / 2, width / 2, height / 2
+    rect = np.array([[tl_x, br_x, br_x, tl_x], [tl_y, tl_y, br_y, br_y]])
+    R = np.array([[np.cos(angle), -np.sin(angle)],
+                  [np.sin(angle), np.cos(angle)]])
+    poly = R.dot(rect)
+    x0, x1, x2, x3 = poly[0, :4] + x_ctr
+    y0, y1, y2, y3 = poly[1, :4] + y_ctr
+    poly = np.array([x0, y0, x1, y1, x2, y2, x3, y3], dtype=np.float32)
+    poly = get_best_begin_point_single(poly)
+
+    return poly.tolist()
+
+
+def get_best_begin_point_single(coordinate):
+
+    x1, y1, x2, y2, x3, y3, x4, y4 = coordinate
+    xmin = min(x1, x2, x3, x4)
+    ymin = min(y1, y2, y3, y4)
+    xmax = max(x1, x2, x3, x4)
+    ymax = max(y1, y2, y3, y4)
+    combine = [[[x1, y1], [x2, y2], [x3, y3], [x4, y4]],
+               [[x2, y2], [x3, y3], [x4, y4], [x1, y1]],
+               [[x3, y3], [x4, y4], [x1, y1], [x2, y2]],
+               [[x4, y4], [x1, y1], [x2, y2], [x3, y3]]]
+    dst_coordinate = [[xmin, ymin], [xmax, ymin], [xmax, ymax], [xmin, ymax]]
+    force = 100000000.0
+    force_flag = 0
+    for i in range(4):
+        temp_force = cal_line_length(combine[i][0], dst_coordinate[0]) \
+            + cal_line_length(combine[i][1], dst_coordinate[1]) \
+            + cal_line_length(combine[i][2], dst_coordinate[2]) \
+            + cal_line_length(combine[i][3], dst_coordinate[3])
+        if temp_force < force:
+            force = temp_force
+            force_flag = i
+    if force_flag != 0:
+        pass
+
+    return np.array(combine[force_flag]).reshape(8)
+
+
+def cal_line_length(point1, point2):
+
+    return math.sqrt(
+        math.pow(point1[0] - point2[0], 2) +
+        math.pow(point1[1] - point2[1], 2))
+
+
+def generate_ann(root_path, split, image_infos):
+
+    dst_image_root = osp.join(root_path, 'crops', split)
+    dst_label_file = osp.join(root_path, f'{split}_label.json')
+    os.makedirs(dst_image_root, exist_ok=True)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0:
+                continue
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['train', 'val', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert IMGUR annotation'):
+            anno_infos = collect_imgur_info(
+                root_path, f'imgur5k_annotations_{split}.json')
+            generate_ann(root_path, split, anno_infos)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/kaist_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/kaist_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..525e9be96d3652746d074bb2e924c62e7bb5b421
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/kaist_converter.py
@@ -0,0 +1,259 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+import xml.etree.ElementTree as ET
+
+import mmcv
+import mmengine
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_list.append(osp.join(gt_dir, img_file.split('.')[0] + '.xml'))
+        imgs_list.append(osp.join(img_dir, img_file))
+
+    all_files = list(zip(sorted(imgs_list), sorted(ann_list)))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.xml':
+        img_info = load_xml_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_xml_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Annotation Format
+    <image>
+        <imageName>DSC02306.JPG</imageName>
+        <resolution x="640" y="480" />
+        <words>
+            <word x="61" y="140" width="566" height="107">
+                <character x="61" y="147" width="75" height="94" char="C" />
+                <character x="173" y="147" width="77" height="93" char="L" />
+                <character x="251" y="146" width="83" height="96" char="A" />
+                <character x="335" y="146" width="75" height="97" char="V" />
+                <character x="409" y="140" width="52" height="105" char="I" />
+                <character x="464" y="147" width="76" height="96" char="T" />
+                <character x="538" y="154" width="89" height="93" char="A" />
+            </word>
+        </words>
+        <illumination>no</illumination>
+        <difficulty>2</difficulty>
+        <tag>
+        </tag>
+    </image>
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    obj = ET.parse(gt_file)
+    root = obj.getroot()
+    anno_info = []
+    for word in root.iter('word'):
+        x, y = max(0, int(word.attrib['x'])), max(0, int(word.attrib['y']))
+        w, h = int(word.attrib['width']), int(word.attrib['height'])
+        bbox = [x, y, x + w, y, x + w, y + h, x, y + h]
+        chars = []
+        for character in word.iter('character'):
+            chars.append(character.attrib['char'])
+        word = ''.join(chars)
+        if len(word) == 0:
+            continue
+        anno = dict(bbox=bbox, word=word)
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+        format (str): Annotation format, should be either 'txt' or 'jsonl'
+    """
+
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'val':
+        dst_label_file = osp.join(root_path, 'val_label.json')
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+            h, w, _ = dst_img.shape
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0:
+                continue
+            # Filter out vertical texts
+            if not preserve_vertical and h / w > 2:
+                dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                continue
+
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    ensure_ascii = dict(ensure_ascii=False)
+    dump_ocr_data(img_info, dst_label_file, 'textrecog', **ensure_ascii)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of KAIST ')
+    parser.add_argument('root_path', help='Root dir path of KAIST')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert KAIST Training annotation'):
+        generate_ann(root_path, 'training', trn_infos, args.preserve_vertical)
+
+    # Val set
+    if len(val_files) > 0:
+        val_infos = collect_annotations(val_files, nproc=args.nproc)
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert KAIST Val annotation'):
+            generate_ann(root_path, 'val', val_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/lmdb_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/lmdb_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..68afd28f3cc41ad819faf478e5068e787c4fb32b
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/lmdb_converter.py
@@ -0,0 +1,175 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+import os
+import os.path as osp
+
+import cv2
+import lmdb
+import numpy as np
+
+from mmocr.utils import list_from_file
+
+
+def parse_line(line, format):
+    if format == 'txt':
+        img_name, text = line.split(' ')
+    else:
+        line = json.loads(line)
+        img_name = line['filename']
+        text = line['text']
+    return img_name, text
+
+
+def check_image_is_valid(imageBin):
+    if imageBin is None:
+        return False
+    imageBuf = np.frombuffer(imageBin, dtype=np.uint8)
+    img = cv2.imdecode(imageBuf, cv2.IMREAD_GRAYSCALE)
+    imgH, imgW = img.shape[0], img.shape[1]
+    if imgH * imgW == 0:
+        return False
+    return True
+
+
+def write_cache(env, cache):
+    with env.begin(write=True) as txn:
+        cursor = txn.cursor()
+        cursor.putmulti(cache, dupdata=False, overwrite=True)
+
+
+def recog2lmdb(img_root,
+               label_path,
+               output,
+               label_format='txt',
+               label_only=False,
+               batch_size=1000,
+               encoding='utf-8',
+               lmdb_map_size=1099511627776,
+               verify=True):
+    """Create text recognition dataset to LMDB format.
+
+    Args:
+        img_root (str): Path to images.
+        label_path (str): Path to label file.
+        output (str): LMDB output path.
+        label_format (str): Format of the label file, either txt or jsonl.
+        label_only (bool): Only convert label to lmdb format.
+        batch_size (int): Number of files written to the cache each time.
+        encoding (str): Label encoding method.
+        lmdb_map_size (int): Maximum size database may grow to.
+        verify (bool): If true, check the validity of
+            every image.Defaults to True.
+
+    E.g.
+    This function supports MMOCR's recognition data format and the label file
+    can be txt or jsonl, as follows:
+
+        ├──img_root
+        |      |—— img1.jpg
+        |      |—— img2.jpg
+        |      |—— ...
+        |——label.txt (or label.jsonl)
+
+        label.txt: img1.jpg HELLO
+                   img2.jpg WORLD
+                   ...
+
+        label.jsonl: {'filename':'img1.jpg', 'text':'HELLO'}
+                     {'filename':'img2.jpg', 'text':'WORLD'}
+                     ...
+    """
+    # check label format
+    assert osp.basename(label_path).split('.')[-1] == label_format
+    # create lmdb env
+    os.makedirs(output, exist_ok=True)
+    env = lmdb.open(output, map_size=lmdb_map_size)
+    # load label file
+    anno_list = list_from_file(label_path, encoding=encoding)
+    cache = []
+    # index start from 1
+    cnt = 1
+    n_samples = len(anno_list)
+    for anno in anno_list:
+        label_key = 'label-%09d'.encode(encoding) % cnt
+        img_name, text = parse_line(anno, label_format)
+        if label_only:
+            # convert only labels to lmdb
+            line = json.dumps(
+                dict(filename=img_name, text=text), ensure_ascii=False)
+            cache.append((label_key, line.encode(encoding)))
+        else:
+            # convert both images and labels to lmdb
+            img_path = osp.join(img_root, img_name)
+            if not osp.exists(img_path):
+                print('%s does not exist' % img_path)
+                continue
+            with open(img_path, 'rb') as f:
+                image_bin = f.read()
+            if verify:
+                try:
+                    if not check_image_is_valid(image_bin):
+                        print('%s is not a valid image' % img_path)
+                        continue
+                except Exception:
+                    print('error occurred at ', img_name)
+            image_key = 'image-%09d'.encode(encoding) % cnt
+            cache.append((image_key, image_bin))
+            cache.append((label_key, text.encode(encoding)))
+
+        if cnt % batch_size == 0:
+            write_cache(env, cache)
+            cache = []
+            print('Written %d / %d' % (cnt, n_samples))
+        cnt += 1
+    n_samples = cnt - 1
+    cache.append(
+        ('num-samples'.encode(encoding), str(n_samples).encode(encoding)))
+    write_cache(env, cache)
+    print('Created lmdb dataset with %d samples' % n_samples)
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('label_path', type=str, help='Path to label file')
+    parser.add_argument('output', type=str, help='Output lmdb path')
+    parser.add_argument(
+        '--img-root', '-i', type=str, help='Input imglist path')
+    parser.add_argument(
+        '--label-only',
+        action='store_true',
+        help='Only converter label to lmdb')
+    parser.add_argument(
+        '--label-format',
+        '-f',
+        default='txt',
+        choices=['txt', 'jsonl'],
+        help='The format of the label file, either txt or jsonl')
+    parser.add_argument(
+        '--batch-size',
+        '-b',
+        type=int,
+        default=1000,
+        help='Processing batch size, defaults to 1000')
+    parser.add_argument(
+        '--encoding',
+        '-e',
+        type=str,
+        default='utf8',
+        help='Bytes coding scheme, defaults to utf8')
+    parser.add_argument(
+        '--lmdb-map-size',
+        '-m',
+        type=int,
+        default=1099511627776,
+        help='Maximum size database may grow to, '
+        'defaults to 1099511627776 bytes (1TB)')
+    opt = parser.parse_args()
+
+    assert opt.img_root or opt.label_only
+    recog2lmdb(opt.img_root, opt.label_path, opt.output, opt.label_format,
+               opt.label_only, opt.batch_size, opt.encoding, opt.lmdb_map_size)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/lsvt_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/lsvt_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..b1f581974967cc6eebb8491fd163bd026e925fbb
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/lsvt_converter.py
@@ -0,0 +1,186 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os.path as osp
+from functools import partial
+
+import mmcv
+import mmengine
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and validation set of LSVT ')
+    parser.add_argument('root_path', help='Root dir path of LSVT')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    args = parser.parse_args()
+    return args
+
+
+def process_img(args, dst_image_root, ignore_image_root, preserve_vertical,
+                split):
+    # Dirty hack for multi-processing
+    img_idx, img_info, anns = args
+    src_img = mmcv.imread(img_info['file_name'])
+    img_info = []
+    for ann_idx, ann in enumerate(anns):
+        segmentation = []
+        for x, y in ann['points']:
+            segmentation.append(max(0, x))
+            segmentation.append(max(0, y))
+        xs, ys = segmentation[::2], segmentation[1::2]
+        x, y = min(xs), min(ys)
+        w, h = max(xs) - x, max(ys) - y
+        text_label = ann['transcription']
+
+        dst_img = src_img[y:y + h, x:x + w]
+        dst_img_name = f'img_{img_idx}_{ann_idx}.jpg'
+
+        if not preserve_vertical and h / w > 2 and split == 'train':
+            dst_img_path = osp.join(ignore_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+            continue
+
+        dst_img_path = osp.join(dst_image_root, dst_img_name)
+        mmcv.imwrite(dst_img, dst_img_path)
+
+        img_info.append({
+            'file_name': dst_img_name,
+            'anno_info': [{
+                'text': text_label
+            }]
+        })
+
+    return img_info
+
+
+def convert_lsvt(root_path,
+                 split,
+                 ratio,
+                 preserve_vertical,
+                 nproc,
+                 img_start_idx=0):
+    """Collect the annotation information and crop the images.
+
+    The annotation format is as the following:
+    [
+        {'gt_1234': # 'gt_1234' is file name
+            [
+                {
+                    'transcription': '一站式购物中心',
+                    'points': [[45, 272], [215, 273], [212, 296], [45, 290]]
+                    'illegibility': False
+                }, ...
+            ]
+        }
+    ]
+
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or val
+        ratio (float): Split ratio for val set
+        preserve_vertical (bool): Whether to preserve vertical texts
+        nproc (int): The number of process to collect annotations
+        img_start_idx (int): Index of start image
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation_path = osp.join(root_path, 'annotations/train_full_labels.json')
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+
+    annotation = mmengine.load(annotation_path)
+    # outputs
+    dst_label_file = osp.join(root_path, f'{split}_label.json')
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    src_image_root = osp.join(root_path, 'imgs')
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    process_img_with_path = partial(
+        process_img,
+        dst_image_root=dst_image_root,
+        ignore_image_root=ignore_image_root,
+        preserve_vertical=preserve_vertical,
+        split=split)
+
+    img_prefixes = annotation.keys()
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(img_prefixes):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = img_prefixes, []
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    if split == 'train':
+        img_prefixes = trn_files
+    elif split == 'val':
+        img_prefixes = val_files
+    else:
+        raise NotImplementedError
+
+    tasks = []
+    idx = 0
+    for img_idx, prefix in enumerate(img_prefixes):
+        img_file = osp.join(src_image_root, prefix + '.jpg')
+        img_info = {'file_name': img_file}
+        # Skip not exist images
+        if not osp.exists(img_file):
+            continue
+        tasks.append((img_idx + img_start_idx, img_info, annotation[prefix]))
+        idx = idx + 1
+
+    labels_list = mmengine.track_parallel_progress(
+        process_img_with_path, tasks, keep_order=True, nproc=nproc)
+    final_labels = []
+    for label_list in labels_list:
+        final_labels += label_list
+
+    dump_ocr_data(final_labels, dst_label_file, 'textrecog')
+
+    return idx
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    num_train_imgs = convert_lsvt(
+        root_path=root_path,
+        split='train',
+        ratio=args.val_ratio,
+        preserve_vertical=args.preserve_vertical,
+        nproc=args.nproc)
+    if args.val_ratio > 0:
+        print('Processing validation set...')
+        convert_lsvt(
+            root_path=root_path,
+            split='val',
+            ratio=args.val_ratio,
+            preserve_vertical=args.preserve_vertical,
+            nproc=args.nproc,
+            img_start_idx=num_train_imgs)
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/lv_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/lv_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..d22c60b224d7fb122ebe26b2729650a961aac992
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/lv_converter.py
@@ -0,0 +1,68 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os.path as osp
+
+from mmocr.utils import dump_ocr_data
+
+
+def convert_annotations(root_path, split):
+    """Convert original annotations to mmocr format.
+
+    The annotation format is as the following:
+        Crops/val/11/1/1.png weighted
+        Crops/val/11/1/2.png 26
+        Crops/val/11/1/3.png casting
+        Crops/val/11/1/4.png 28
+    After this module, the annotation has been changed to the format below:
+        jsonl:
+        {'filename': 'Crops/val/11/1/1.png', 'text': 'weighted'}
+        {'filename': 'Crops/val/11/1/1.png', 'text': '26'}
+        {'filename': 'Crops/val/11/1/1.png', 'text': 'casting'}
+        {'filename': 'Crops/val/11/1/1.png', 'text': '28'}
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+    """
+    assert isinstance(root_path, str)
+    assert isinstance(split, str)
+
+    img_info = []
+    with open(
+            osp.join(root_path, f'{split}_label.txt'),
+            encoding='"utf-8-sig') as f:
+        annos = f.readlines()
+    for anno in annos:
+        if anno:
+            # Text may contain spaces
+            dst_img_name, word = anno.split('png ')
+            word = word.strip('\n')
+            img_info.append({
+                'file_name': dst_img_name + 'png',
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+    dump_ocr_data(img_info, osp.join(root_path, f'{split.lower()}_label.json'),
+                  'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of Lecture Video DB')
+    parser.add_argument('root_path', help='Root dir path of Lecture Video DB')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['train', 'val', 'test']:
+        convert_annotations(root_path, split)
+        print(f'{split} split converted.')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/mtwi_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/mtwi_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..86d4e4e895b36a225fd2e916b675dcdf3abe8d17
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/mtwi_converter.py
@@ -0,0 +1,251 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import cv2
+import mmcv
+import mmengine
+from PIL import Image
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for ann_file in os.listdir(gt_dir):
+        img_file = osp.join(img_dir, ann_file.replace('txt', 'jpg'))
+        # This dataset contains some images obtained from .gif,
+        # which cannot be loaded by mmcv.imread(), convert them
+        # to RGB mode.
+        try:
+            if mmcv.imread(img_file) is None:
+                print(f'Convert {img_file} to RGB mode.')
+                img = Image.open(img_file)
+                img = img.convert('RGB')
+                img.save(img_file)
+        except cv2.error:
+            print(f'Skip broken img {img_file}')
+            continue
+
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(img_file)
+
+    all_files = list(zip(imgs_list, ann_list))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file)
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x1,y1,x2,y2,x3,y3,x4,y4,text
+
+    45.45,226.83,11.87,181.79,183.84,13.1,233.79,49.95,时尚袋袋
+    345.98,311.18,345.98,347.21,462.26,347.21,462.26,311.18,73774
+    462.26,292.34,461.44,299.71,502.39,299.71,502.39,292.34,73/74/737
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    anno_info = []
+    with open(gt_file) as f:
+        lines = f.readlines()
+    for line in lines:
+        points = line.split(',')[0:8]
+        word = line.split(',')[8].rstrip('\n')
+        if word == '###':
+            continue
+        bbox = [math.floor(float(pt)) for pt in points]
+        anno = dict(bbox=bbox, word=word)
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+    """
+    print('Cropping images...')
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'val':
+        dst_label_file = osp.join(root_path, 'val_label.json')
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+            h, w, _ = dst_img.shape
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0:
+                continue
+            # Skip vertical texts
+            if not preserve_vertical and h / w > 2 and split == 'training':
+                dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                continue
+
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of MTWI.')
+    parser.add_argument('root_path', help='Root dir path of MTWI')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert MTWI Training annotation'):
+        generate_ann(root_path, 'training', trn_infos, args.preserve_vertical)
+
+    # Val set
+    if len(val_files) > 0:
+        val_infos = collect_annotations(val_files, nproc=args.nproc)
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert MTWI Val annotation'):
+            generate_ann(root_path, 'val', val_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/naf_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/naf_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..3c6d84ad2d9613606e767bdd67793f65ae0e5239
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/naf_converter.py
@@ -0,0 +1,272 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os.path as osp
+
+import mmcv
+import mmengine
+import numpy as np
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, split_info):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        split_info (dict): The split information for train/val/test
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(split_info, dict)
+    assert split_info
+
+    ann_list, imgs_list = [], []
+    for group in split_info:
+        for img in split_info[group]:
+            image_path = osp.join(img_dir, img)
+            anno_path = osp.join(gt_dir, 'groups', group,
+                                 img.replace('jpg', 'json'))
+
+            # Filtering out the missing images
+            if not osp.exists(image_path) or not osp.exists(anno_path):
+                continue
+
+            imgs_list.append(image_path)
+            ann_list.append(anno_path)
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # Read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.json':
+        img_info = load_json_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_json_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Annotation Format
+    {
+        'filedBBs': [{
+            'poly_points': [[435,1406], [466,1406], [466,1439], [435,1439]],
+            "type": "fieldCheckBox",
+            "id": "f0",
+            "isBlank": 1, # 0:text,1:handwriting,2:print,3:blank,4:signature,
+        }], ...
+        "transcriptions":{
+            "f38": "CASE NUMBER",
+            "f29": "July 1, 1949",
+            "t20": "RANK",
+            "t19": "COMPANY",
+            ...
+        }
+    }
+
+    Some special characters are used in the transcription:
+    "«text»" indicates that "text" had a strikethrough
+    "¿" indicates the transcriber could not read a character
+    "§" indicates the whole line or word was illegible
+    "" (empty string) is if the field was blank
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(gt_file, str)
+    assert isinstance(img_info, dict)
+
+    annotation = mmengine.load(gt_file)
+    anno_info = []
+
+    # 'textBBs' contains the printed texts of the table while 'fieldBBs'
+    #  contains the text filled by human.
+    for box_type in ['textBBs', 'fieldBBs']:
+        # NAF dataset only provides transcription GT for 'filedBBs', the
+        # 'textBBs' is only used for detection task.
+        if box_type == 'textBBs':
+            continue
+        for anno in annotation[box_type]:
+            # Skip images containing detection annotations only
+            if 'transcriptions' not in annotation.keys():
+                continue
+            # Skip boxes without recognition GT
+            if anno['id'] not in annotation['transcriptions'].keys():
+                continue
+
+            word = annotation['transcriptions'][anno['id']]
+            # Skip blank boxes
+            if len(word) == 0:
+                continue
+
+            bbox = np.array(anno['poly_points']).reshape(1, 8)[0].tolist()
+
+            anno = dict(bbox=bbox, word=word)
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+    """
+
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'val':
+        dst_label_file = osp.join(root_path, 'val_label.json')
+    elif split == 'test':
+        dst_label_file = osp.join(root_path, 'test_label.json')
+    else:
+        raise NotImplementedError
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            word = word.strip('\u202a')  # Remove unicode control character
+            word = word.replace('»',
+                                '').replace('«',
+                                            '')  # Remove strikethrough flag
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+            h, w, _ = dst_img.shape
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            # Skip invalid and illegible annotations
+            if min(dst_img.shape) == 0 or '§' in word or '¿' in word or len(
+                    word) == 0:
+                continue
+            # Skip vertical texts
+            # (Do Not Filter For Val and Test Split)
+            if (not preserve_vertical and h / w > 2) and split == 'training':
+                dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                continue
+
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training, val, and test set of NAF ')
+    parser.add_argument('root_path', help='Root dir path of NAF')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    split_info = mmengine.load(
+        osp.join(root_path, 'annotations', 'train_valid_test_split.json'))
+    split_info['training'] = split_info.pop('train')
+    split_info['val'] = split_info.pop('valid')
+    for split in ['training', 'val', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert NAF annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs'),
+                osp.join(root_path, 'annotations'), split_info[split])
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            generate_ann(root_path, split, image_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/openvino_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/openvino_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..79b962bbdaa9ff35e8f726234fdd2c007fb8f105
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/openvino_converter.py
@@ -0,0 +1,120 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import math
+import os
+import os.path as osp
+from argparse import ArgumentParser
+from functools import partial
+
+import mmengine
+from PIL import Image
+
+from mmocr.utils import dump_ocr_data
+
+
+def parse_args():
+    parser = ArgumentParser(description='Generate training and validation set '
+                            'of OpenVINO annotations for Open '
+                            'Images by cropping box image.')
+    parser.add_argument(
+        'root_path', help='Root dir containing images and annotations')
+    parser.add_argument(
+        'n_proc', default=1, type=int, help='Number of processes to run')
+    args = parser.parse_args()
+    return args
+
+
+def process_img(args, src_image_root, dst_image_root):
+    # Dirty hack for multi-processing
+    img_idx, img_info, anns = args
+    src_img = Image.open(osp.join(src_image_root, img_info['file_name']))
+    labels = []
+    for ann_idx, ann in enumerate(anns):
+        attrs = ann['attributes']
+        text_label = attrs['transcription']
+
+        # Ignore illegible or non-English words
+        if not attrs['legible'] or attrs['language'] != 'english':
+            continue
+
+        x, y, w, h = ann['bbox']
+        x, y = max(0, math.floor(x)), max(0, math.floor(y))
+        w, h = math.ceil(w), math.ceil(h)
+        dst_img = src_img.crop((x, y, x + w, y + h))
+        dst_img_name = f'img_{img_idx}_{ann_idx}.jpg'
+        dst_img_path = osp.join(dst_image_root, dst_img_name)
+        # Preserve JPEG quality
+        dst_img.save(dst_img_path, qtables=src_img.quantization)
+        labels.append({
+            'file_name': dst_img_name,
+            'anno_info': [{
+                'text': text_label
+            }]
+        })
+    src_img.close()
+    return labels
+
+
+def convert_openimages(root_path,
+                       dst_image_path,
+                       dst_label_filename,
+                       annotation_filename,
+                       img_start_idx=0,
+                       nproc=1):
+    annotation_path = osp.join(root_path, annotation_filename)
+    if not osp.exists(annotation_path):
+        raise Exception(
+            f'{annotation_path} not exists, please check and try again.')
+    src_image_root = root_path
+
+    # outputs
+    dst_label_file = osp.join(root_path, dst_label_filename)
+    dst_image_root = osp.join(root_path, dst_image_path)
+    os.makedirs(dst_image_root, exist_ok=True)
+
+    annotation = mmengine.load(annotation_path)
+
+    process_img_with_path = partial(
+        process_img,
+        src_image_root=src_image_root,
+        dst_image_root=dst_image_root)
+    tasks = []
+    anns = {}
+    for ann in annotation['annotations']:
+        anns.setdefault(ann['image_id'], []).append(ann)
+    for img_idx, img_info in enumerate(annotation['images']):
+        tasks.append((img_idx + img_start_idx, img_info, anns[img_info['id']]))
+    labels_list = mmengine.track_parallel_progress(
+        process_img_with_path, tasks, keep_order=True, nproc=nproc)
+    final_labels = []
+    for label_list in labels_list:
+        final_labels += label_list
+    dump_ocr_data(final_labels, dst_label_file, 'textrecog')
+    return len(annotation['images'])
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    print('Processing training set...')
+    num_train_imgs = 0
+    for s in '125f':
+        num_train_imgs = convert_openimages(
+            root_path=root_path,
+            dst_image_path=f'image_{s}',
+            dst_label_filename=f'train_{s}_label.json',
+            annotation_filename=f'text_spotting_openimages_v5_train_{s}.json',
+            img_start_idx=num_train_imgs,
+            nproc=args.n_proc)
+    print('Processing validation set...')
+    convert_openimages(
+        root_path=root_path,
+        dst_image_path='image_val',
+        dst_label_filename='val_label.json',
+        annotation_filename='text_spotting_openimages_v5_validation.json',
+        img_start_idx=num_train_imgs,
+        nproc=args.n_proc)
+    print('Finish')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/rctw_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/rctw_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..e3bfd2baa2a31594850ae2cae82040fb6e8e0362
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/rctw_converter.py
@@ -0,0 +1,238 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for ann_file in os.listdir(gt_dir):
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, ann_file.replace('txt', 'jpg')))
+
+    all_files = list(zip(imgs_list, ann_list))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file)
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x1, y1, x2, y2, x3, y3, x4, y4, difficult, text
+
+    390,902,1856,902,1856,1225,390,1225,0,"金氏眼镜"
+    1875,1170,2149,1170,2149,1245,1875,1245,0,"创于1989"
+    2054,1277,2190,1277,2190,1323,2054,1323,0,"城建店"
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    anno_info = []
+    with open(gt_file, encoding='utf-8-sig') as f:
+        lines = f.readlines()
+    for line in lines:
+        points = line.split(',')[0:8]
+        word = line.split(',')[9].rstrip('\n').strip('"')
+        difficult = 1 if line.split(',')[8] != '0' else 0
+        bbox = [int(pt) for pt in points]
+
+        if word == '###' or difficult == 1:
+            continue
+
+        anno = dict(bbox=bbox, word=word)
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or val
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+    """
+
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'val':
+        dst_label_file = osp.join(root_path, 'val_label.json')
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+            h, w, _ = dst_img.shape
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0:
+                continue
+            # Filter out vertical texts
+            if not preserve_vertical and h / w > 2:
+                dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                continue
+
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of RCTW.')
+    parser.add_argument('root_path', help='Root dir path of RCTW')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert RCTW Training annotation'):
+        trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+        generate_ann(root_path, 'training', trn_infos, args.preserve_vertical)
+
+    # Val set
+    if len(val_files) > 0:
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert RCTW Val annotation'):
+            val_infos = collect_annotations(val_files, nproc=args.nproc)
+            generate_ann(root_path, 'val', val_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/rects_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/rects_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..630e81509715ef67edcb7dbf77542b399962d551
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/rects_converter.py
@@ -0,0 +1,256 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import math
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir, ratio):
+    """Collect all images and their corresponding groundtruth files.
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+        ratio (float): Split ratio for val set
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+    assert isinstance(ratio, float)
+    assert ratio < 1.0, 'val_ratio should be a float between 0.0 to 1.0'
+
+    ann_list, imgs_list = [], []
+    for ann_file in os.listdir(gt_dir):
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, ann_file.replace('json', 'jpg')))
+
+    all_files = list(zip(imgs_list, ann_list))
+    assert len(all_files), f'No images found in {img_dir}'
+    print(f'Loaded {len(all_files)} images from {img_dir}')
+
+    trn_files, val_files = [], []
+    if ratio > 0:
+        for i, file in enumerate(all_files):
+            if i % math.floor(1 / ratio):
+                trn_files.append(file)
+            else:
+                val_files.append(file)
+    else:
+        trn_files, val_files = all_files, []
+
+    print(f'training #{len(trn_files)}, val #{len(val_files)}')
+
+    return trn_files, val_files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file)
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.json':
+        img_info = load_json_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_json_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+
+    {
+        "chars": [
+            {
+                "ignore": 0,
+                "transcription": "H",
+                "points": [25, 175, 112, 175, 112, 286, 25, 286]
+            },
+            {
+                "ignore": 0,
+                "transcription": "O",
+                "points": [102, 182, 210, 182, 210, 273, 102, 273]
+            }, ...
+        ]
+        "lines": [
+            {
+                "ignore": 0,
+                "transcription": "HOKI",
+                "points": [23, 173, 327, 180, 327, 290, 23, 283]
+            },
+            {
+                "ignore": 0,
+                "transcription": "TEA",
+                "points": [368, 180, 621, 180, 621, 294, 368, 294]
+            }, ...
+        ]
+    }
+
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    annotation = mmengine.load(gt_file)
+    anno_info = []
+    for line in annotation['lines']:
+        if line['ignore'] == 1:
+            continue
+        segmentation = line['points']
+        word = line['transcription']
+        anno = dict(bbox=segmentation, word=word)
+        anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+    """
+    print('Cropping images...')
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'val':
+        dst_label_file = osp.join(root_path, 'val_label.json')
+    mmengine.mkdir_or_exist(dst_image_root)
+    mmengine.mkdir_or_exist(ignore_image_root)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+            h, w, _ = dst_img.shape
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0:
+                continue
+            # Skip vertical texts
+            if not preserve_vertical and h / w > 2 and split == 'training':
+                dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                continue
+
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and val set of ReCTS.')
+    parser.add_argument('root_path', help='Root dir path of ReCTS')
+    parser.add_argument(
+        '--val-ratio', help='Split ratio for val set', default=0.0, type=float)
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    ratio = args.val_ratio
+
+    trn_files, val_files = collect_files(
+        osp.join(root_path, 'imgs'), osp.join(root_path, 'annotations'), ratio)
+
+    # Train set
+    trn_infos = collect_annotations(trn_files, nproc=args.nproc)
+    with mmengine.Timer(
+            print_tmpl='It takes {}s to convert ReCTS Training annotation'):
+        generate_ann(root_path, 'training', trn_infos, args.preserve_vertical)
+
+    # Val set
+    if len(val_files) > 0:
+        val_infos = collect_annotations(val_files, nproc=args.nproc)
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert ReCTS Val annotation'):
+            generate_ann(root_path, 'val', val_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/sroie_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/sroie_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..1c380e49d42d7c09907f5c1642baa172e5dff1ed
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/sroie_converter.py
@@ -0,0 +1,207 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+import numpy as np
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for gt_file in os.listdir(gt_dir):
+        # Filtering repeated and missing images
+        if '(' in gt_file or gt_file == 'X51006619570.txt':
+            continue
+        ann_list.append(osp.join(gt_dir, gt_file))
+        imgs_list.append(osp.join(img_dir, gt_file.replace('.txt', '.jpg')))
+
+    files = list(zip(sorted(imgs_list), sorted(ann_list)))
+    assert len(files), f'No images found in {img_dir}'
+
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert osp.basename(gt_file).split('.')[0] == osp.basename(img_file).split(
+        '.')[0]
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    Annotation Format
+    x1, y1, x2, y2, x3, y3, x4, y4, transcript
+
+    Args:
+        gt_file (list): The list of tuples (image_file, groundtruth_file)
+        img_info (int): The dict of the img and annotation information
+
+    Returns:
+        img_info (list): The dict of the img and annotation information
+    """
+
+    with open(gt_file, encoding='unicode_escape') as f:
+        anno_info = []
+        for ann in f.readlines():
+            # skip invalid annotation line
+            try:
+                bbox = np.array(ann.split(',')[0:8]).astype(int).tolist()
+            except ValueError:
+
+                continue
+            word = ann.split(',')[-1].replace('\n', '').strip()
+
+            anno = dict(bbox=bbox, word=word)
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+    """
+
+    dst_image_root = osp.join(root_path, 'crops', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'test':
+        dst_label_file = osp.join(root_path, 'test_label.json')
+    os.makedirs(dst_image_root, exist_ok=True)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', split,
+                                image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0 or len(word) == 0:
+                continue
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of SROIE')
+    parser.add_argument('root_path', help='Root dir path of SROIE')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of process')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+
+    for split in ['training', 'test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert SROIE annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs', split),
+                osp.join(root_path, 'annotations', split))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            generate_ann(root_path, split, image_infos)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dataset_converters/textrecog/vintext_converter.py b/mmocr-dev-1.x/tools/dataset_converters/textrecog/vintext_converter.py
new file mode 100644
index 0000000000000000000000000000000000000000..ea9103da033c2d4bdbba3855f78a88d32aec9553
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dataset_converters/textrecog/vintext_converter.py
@@ -0,0 +1,217 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+import mmcv
+import mmengine
+
+from mmocr.utils import crop_img, dump_ocr_data
+
+
+def collect_files(img_dir, gt_dir):
+    """Collect all images and their corresponding groundtruth files.
+
+    Args:
+        img_dir (str): The image directory
+        gt_dir (str): The groundtruth directory
+
+    Returns:
+        files (list): The list of tuples (img_file, groundtruth_file)
+    """
+    assert isinstance(img_dir, str)
+    assert img_dir
+    assert isinstance(gt_dir, str)
+    assert gt_dir
+
+    ann_list, imgs_list = [], []
+    for img_file in os.listdir(img_dir):
+        ann_file = 'gt_' + str(int(img_file[2:6])) + '.txt'
+        ann_list.append(osp.join(gt_dir, ann_file))
+        imgs_list.append(osp.join(img_dir, img_file))
+
+    files = list(zip(imgs_list, ann_list))
+    assert len(files), f'No images found in {img_dir}'
+    print(f'Loaded {len(files)} images from {img_dir}')
+
+    return files
+
+
+def collect_annotations(files, nproc=1):
+    """Collect the annotation information.
+
+    Args:
+        files (list): The list of tuples (image_file, groundtruth_file)
+        nproc (int): The number of process to collect annotations
+
+    Returns:
+        images (list): The list of image information dicts
+    """
+    assert isinstance(files, list)
+    assert isinstance(nproc, int)
+
+    if nproc > 1:
+        images = mmengine.track_parallel_progress(
+            load_img_info, files, nproc=nproc)
+    else:
+        images = mmengine.track_progress(load_img_info, files)
+
+    return images
+
+
+def load_img_info(files):
+    """Load the information of one image.
+
+    Args:
+        files (tuple): The tuple of (img_file, groundtruth_file)
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+    assert isinstance(files, tuple)
+
+    img_file, gt_file = files
+    assert int(osp.basename(gt_file)[3:-4]) == int(
+        osp.basename(img_file)[2:-4])
+    # read imgs while ignoring orientations
+    img = mmcv.imread(img_file, 'unchanged')
+
+    img_info = dict(
+        file_name=osp.join(osp.basename(img_file)),
+        height=img.shape[0],
+        width=img.shape[1],
+        segm_file=osp.join(osp.basename(gt_file)))
+
+    if osp.splitext(gt_file)[1] == '.txt':
+        img_info = load_txt_info(gt_file, img_info)
+    else:
+        raise NotImplementedError
+
+    return img_info
+
+
+def load_txt_info(gt_file, img_info):
+    """Collect the annotation information.
+
+    The annotation format is as the following:
+    x1,y1,x2,y2,x3,y3,x4,y4,text
+    118,15,147,15,148,46,118,46,LƯỢNG
+    149,9,165,9,165,43,150,43,TỐT
+    167,9,180,9,179,43,167,42,ĐỂ
+    181,12,193,12,193,43,181,43,CÓ
+    195,13,215,14,215,46,196,46,VIỆC
+    217,13,237,14,239,47,217,46,LÀM,
+
+    Args:
+        gt_file (str): The path to ground-truth
+        img_info (dict): The dict of the img and annotation information
+
+    Returns:
+        img_info (dict): The dict of the img and annotation information
+    """
+
+    with open(gt_file, encoding='utf-8') as f:
+        anno_info = []
+        for line in f:
+            line = line.strip('\n')
+            ann = line.split(',')
+            bbox = ann[0:8]
+            word = line[len(','.join(bbox)) + 1:]
+            bbox = [int(coord) for coord in bbox]
+            # Ignore hard samples
+            if word == '###':
+                continue
+            assert len(bbox) == 8
+            anno = dict(bbox=bbox, word=word)
+            anno_info.append(anno)
+
+    img_info.update(anno_info=anno_info)
+
+    return img_info
+
+
+def generate_ann(root_path, split, image_infos, preserve_vertical):
+    """Generate cropped annotations and label txt file.
+
+    Args:
+        root_path (str): The root path of the dataset
+        split (str): The split of dataset. Namely: training or test
+        image_infos (list[dict]): A list of dicts of the img and
+            annotation information
+        preserve_vertical (bool): Whether to preserve vertical texts
+    """
+    dst_image_root = osp.join(root_path, 'crops', split)
+    ignore_image_root = osp.join(root_path, 'ignores', split)
+    if split == 'training':
+        dst_label_file = osp.join(root_path, 'train_label.json')
+    elif split == 'test':
+        dst_label_file = osp.join(root_path, 'test_label.json')
+    elif split == 'unseen_test':
+        dst_label_file = osp.join(root_path, 'unseen_test_label.json')
+    os.makedirs(dst_image_root, exist_ok=True)
+
+    img_info = []
+    for image_info in image_infos:
+        index = 1
+        src_img_path = osp.join(root_path, 'imgs', split,
+                                image_info['file_name'])
+        image = mmcv.imread(src_img_path)
+        src_img_root = image_info['file_name'].split('.')[0]
+
+        for anno in image_info['anno_info']:
+            word = anno['word']
+            dst_img = crop_img(image, anno['bbox'], 0, 0)
+            h, w, _ = dst_img.shape
+
+            dst_img_name = f'{src_img_root}_{index}.png'
+            index += 1
+            # Skip invalid annotations
+            if min(dst_img.shape) == 0:
+                continue
+            # Skip vertical texts
+            if not preserve_vertical and h / w > 2 and split == 'training':
+                dst_img_path = osp.join(ignore_image_root, dst_img_name)
+                mmcv.imwrite(dst_img, dst_img_path)
+                continue
+
+            dst_img_path = osp.join(dst_image_root, dst_img_name)
+            mmcv.imwrite(dst_img, dst_img_path)
+            img_info.append({
+                'file_name': dst_img_name,
+                'anno_info': [{
+                    'text': word
+                }]
+            })
+    dump_ocr_data(img_info, dst_label_file, 'textrecog')
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Generate training and test set of VinText ')
+    parser.add_argument('root_path', help='Root dir path of VinText')
+    parser.add_argument(
+        '--preserve-vertical',
+        help='Preserve samples containing vertical texts',
+        action='store_true')
+    parser.add_argument(
+        '--nproc', default=1, type=int, help='Number of processes')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_args()
+    root_path = args.root_path
+    for split in ['training', 'test', 'unseen_test']:
+        print(f'Processing {split} set...')
+        with mmengine.Timer(
+                print_tmpl='It takes {}s to convert VinText annotation'):
+            files = collect_files(
+                osp.join(root_path, 'imgs', split),
+                osp.join(root_path, 'annotations'))
+            image_infos = collect_annotations(files, nproc=args.nproc)
+            generate_ann(root_path, split, image_infos, args.preserve_vertical)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/dist_test.sh b/mmocr-dev-1.x/tools/dist_test.sh
new file mode 100755
index 0000000000000000000000000000000000000000..dea131b43ea8f1222661d20603d40c18ea7f28a1
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dist_test.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+CONFIG=$1
+CHECKPOINT=$2
+GPUS=$3
+NNODES=${NNODES:-1}
+NODE_RANK=${NODE_RANK:-0}
+PORT=${PORT:-29500}
+MASTER_ADDR=${MASTER_ADDR:-"127.0.0.1"}
+
+PYTHONPATH="$(dirname $0)/..":$PYTHONPATH \
+python -m torch.distributed.launch \
+    --nnodes=$NNODES \
+    --node_rank=$NODE_RANK \
+    --master_addr=$MASTER_ADDR \
+    --nproc_per_node=$GPUS \
+    --master_port=$PORT \
+    $(dirname "$0")/test.py \
+    $CONFIG \
+    $CHECKPOINT \
+    --launcher pytorch \
+    ${@:4}
diff --git a/mmocr-dev-1.x/tools/dist_train.sh b/mmocr-dev-1.x/tools/dist_train.sh
new file mode 100755
index 0000000000000000000000000000000000000000..3f5b40b2318c6bd58504d9e570b90adf21825376
--- /dev/null
+++ b/mmocr-dev-1.x/tools/dist_train.sh
@@ -0,0 +1,20 @@
+
+#!/usr/bin/env bash
+
+CONFIG=$1
+GPUS=$2
+NNODES=${NNODES:-1}
+NODE_RANK=${NODE_RANK:-0}
+PORT=${PORT:-29500}
+MASTER_ADDR=${MASTER_ADDR:-"127.0.0.1"}
+
+PYTHONPATH="$(dirname $0)/..":$PYTHONPATH \
+python -m torch.distributed.launch \
+    --nnodes=$NNODES \
+    --node_rank=$NODE_RANK \
+    --master_addr=$MASTER_ADDR \
+    --nproc_per_node=$GPUS \
+    --master_port=$PORT \
+    $(dirname "$0")/train.py \
+    $CONFIG \
+    --launcher pytorch ${@:3}
diff --git a/mmocr-dev-1.x/tools/infer.py b/mmocr-dev-1.x/tools/infer.py
new file mode 100755
index 0000000000000000000000000000000000000000..74ff9099e2727910ecffa0ff47f28f3c4208bed3
--- /dev/null
+++ b/mmocr-dev-1.x/tools/infer.py
@@ -0,0 +1,100 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+from argparse import ArgumentParser
+
+from mmocr.apis.inferencers import MMOCRInferencer
+
+
+def parse_args():
+    parser = ArgumentParser()
+    parser.add_argument(
+        'inputs', type=str, help='Input image file or folder path.')
+    parser.add_argument(
+        '--out-dir',
+        type=str,
+        default='results/',
+        help='Output directory of results.')
+    parser.add_argument(
+        '--det',
+        type=str,
+        default=None,
+        help='Pretrained text detection algorithm. It\'s the path to the '
+        'config file or the model name defined in metafile.')
+    parser.add_argument(
+        '--det-weights',
+        type=str,
+        default=None,
+        help='Path to the custom checkpoint file of the selected det model. '
+        'If it is not specified and "det" is a model name of metafile, the '
+        'weights will be loaded from metafile.')
+    parser.add_argument(
+        '--rec',
+        type=str,
+        default=None,
+        help='Pretrained text recognition algorithm. It\'s the path to the '
+        'config file or the model name defined in metafile.')
+    parser.add_argument(
+        '--rec-weights',
+        type=str,
+        default=None,
+        help='Path to the custom checkpoint file of the selected recog model. '
+        'If it is not specified and "rec" is a model name of metafile, the '
+        'weights will be loaded from metafile.')
+    parser.add_argument(
+        '--kie',
+        type=str,
+        default=None,
+        help='Pretrained key information extraction algorithm. It\'s the path'
+        'to the config file or the model name defined in metafile.')
+    parser.add_argument(
+        '--kie-weights',
+        type=str,
+        default=None,
+        help='Path to the custom checkpoint file of the selected kie model. '
+        'If it is not specified and "kie" is a model name of metafile, the '
+        'weights will be loaded from metafile.')
+    parser.add_argument(
+        '--device',
+        type=str,
+        default=None,
+        help='Device used for inference. '
+        'If not specified, the available device will be automatically used.')
+    parser.add_argument(
+        '--batch-size', type=int, default=1, help='Inference batch size.')
+    parser.add_argument(
+        '--show',
+        action='store_true',
+        help='Display the image in a popup window.')
+    parser.add_argument(
+        '--print-result',
+        action='store_true',
+        help='Whether to print the results.')
+    parser.add_argument(
+        '--save_pred',
+        action='store_true',
+        help='Save the inference results to out_dir.')
+    parser.add_argument(
+        '--save_vis',
+        action='store_true',
+        help='Save the visualization results to out_dir.')
+
+    call_args = vars(parser.parse_args())
+
+    init_kws = [
+        'det', 'det_weights', 'rec', 'rec_weights', 'kie', 'kie_weights',
+        'device'
+    ]
+    init_args = {}
+    for init_kw in init_kws:
+        init_args[init_kw] = call_args.pop(init_kw)
+
+    return init_args, call_args
+
+
+def main():
+    init_args, call_args = parse_args()
+    ocr = MMOCRInferencer(**init_args)
+    ocr(**call_args)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/model_converters/publish_model.py b/mmocr-dev-1.x/tools/model_converters/publish_model.py
new file mode 100755
index 0000000000000000000000000000000000000000..18fc3e15045dea63a74ed1a7727a388e9031ac8c
--- /dev/null
+++ b/mmocr-dev-1.x/tools/model_converters/publish_model.py
@@ -0,0 +1,57 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import subprocess
+
+import torch
+from mmengine.logging import print_log
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Process a checkpoint to be published')
+    parser.add_argument('in_file', help='input checkpoint filename')
+    parser.add_argument('out_file', help='output checkpoint filename')
+    parser.add_argument(
+        '--save-keys',
+        nargs='+',
+        type=str,
+        default=['meta', 'state_dict'],
+        help='keys to save in the published checkpoint')
+    args = parser.parse_args()
+    return args
+
+
+def process_checkpoint(in_file, out_file, save_keys=['meta', 'state_dict']):
+    checkpoint = torch.load(in_file, map_location='cpu')
+
+    # only keep `meta` and `state_dict` for smaller file size
+    ckpt_keys = list(checkpoint.keys())
+    for k in ckpt_keys:
+        if k not in save_keys:
+            print_log(
+                f'Key `{k}` will be removed because it is not in '
+                f'save_keys. If you want to keep it, '
+                f'please set --save-keys.',
+                logger='current')
+            checkpoint.pop(k, None)
+
+    # if it is necessary to remove some sensitive data in checkpoint['meta'],
+    # add the code here.
+    if torch.__version__ >= '1.6':
+        torch.save(checkpoint, out_file, _use_new_zipfile_serialization=False)
+    else:
+        torch.save(checkpoint, out_file)
+    sha = subprocess.check_output(['sha256sum', out_file]).decode()
+    final_file = out_file.rstrip('.pth') + f'-{sha[:8]}.pth'
+    subprocess.Popen(['mv', out_file, final_file])
+    print_log(
+        f'The published model is saved at {final_file}.', logger='current')
+
+
+def main():
+    args = parse_args()
+    process_checkpoint(args.in_file, args.out_file, args.save_keys)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/slurm_test.sh b/mmocr-dev-1.x/tools/slurm_test.sh
new file mode 100755
index 0000000000000000000000000000000000000000..865f45599ad883d216f0df0248a3815700615c17
--- /dev/null
+++ b/mmocr-dev-1.x/tools/slurm_test.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -x
+export PYTHONPATH=`pwd`:$PYTHONPATH
+
+PARTITION=$1
+JOB_NAME=$2
+CONFIG=$3
+CHECKPOINT=$4
+GPUS=${GPUS:-8}
+GPUS_PER_NODE=${GPUS_PER_NODE:-8}
+PY_ARGS=${@:5}
+SRUN_ARGS=${SRUN_ARGS:-""}
+
+srun -p ${PARTITION} \
+    --job-name=${JOB_NAME} \
+    --gres=gpu:${GPUS_PER_NODE} \
+    --ntasks=${GPUS} \
+    --ntasks-per-node=${GPUS_PER_NODE} \
+    --kill-on-bad-exit=1 \
+    ${SRUN_ARGS} \
+    python -u tools/test.py ${CONFIG} ${CHECKPOINT} --launcher="slurm" ${PY_ARGS}
diff --git a/mmocr-dev-1.x/tools/slurm_train.sh b/mmocr-dev-1.x/tools/slurm_train.sh
new file mode 100755
index 0000000000000000000000000000000000000000..452b09454a08ac522a9df2304c3039487ea517bd
--- /dev/null
+++ b/mmocr-dev-1.x/tools/slurm_train.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+export MASTER_PORT=$((12000 + $RANDOM % 20000))
+
+set -x
+
+PARTITION=$1
+JOB_NAME=$2
+CONFIG=$3
+WORK_DIR=$4
+GPUS=${GPUS:-8}
+GPUS_PER_NODE=${GPUS_PER_NODE:-8}
+CPUS_PER_TASK=${CPUS_PER_TASK:-5}
+PY_ARGS=${@:5}
+SRUN_ARGS=${SRUN_ARGS:-""}
+
+PYTHONPATH="$(dirname $0)/..":$PYTHONPATH \
+srun -p ${PARTITION} \
+    --job-name=${JOB_NAME} \
+    --gres=gpu:${GPUS_PER_NODE} \
+    --ntasks=${GPUS} \
+    --ntasks-per-node=${GPUS_PER_NODE} \
+    --cpus-per-task=${CPUS_PER_TASK} \
+    --kill-on-bad-exit=1 \
+    ${SRUN_ARGS} \
+    python -u tools/train.py ${CONFIG} --work-dir=${WORK_DIR} --launcher="slurm" ${PY_ARGS}
diff --git a/mmocr-dev-1.x/tools/test.py b/mmocr-dev-1.x/tools/test.py
new file mode 100755
index 0000000000000000000000000000000000000000..15645f2207ebdb61fd70293f2b2c9602e99b2c61
--- /dev/null
+++ b/mmocr-dev-1.x/tools/test.py
@@ -0,0 +1,141 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os
+import os.path as osp
+
+from mmengine.config import Config, DictAction
+from mmengine.registry import RUNNERS
+from mmengine.runner import Runner
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Test (and eval) a model')
+    parser.add_argument('config', help='Test config file path')
+    parser.add_argument('checkpoint', help='Checkpoint file')
+    parser.add_argument(
+        '--work-dir',
+        help='The directory to save the file containing evaluation metrics')
+    parser.add_argument(
+        '--save-preds',
+        action='store_true',
+        help='Dump predictions to a pickle file for offline evaluation')
+    parser.add_argument(
+        '--show', action='store_true', help='Show prediction results')
+    parser.add_argument(
+        '--show-dir',
+        help='Directory where painted images will be saved. '
+        'If specified, it will be automatically saved '
+        'to the work_dir/timestamp/show_dir')
+    parser.add_argument(
+        '--wait-time', type=float, default=2, help='The interval of show (s)')
+    parser.add_argument(
+        '--cfg-options',
+        nargs='+',
+        action=DictAction,
+        help='Override some settings in the used config, the key-value pair '
+        'in xxx=yyy format will be merged into config file. If the value to '
+        'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
+        'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
+        'Note that the quotation marks are necessary and that no white space '
+        'is allowed.')
+    parser.add_argument(
+        '--launcher',
+        choices=['none', 'pytorch', 'slurm', 'mpi'],
+        default='none',
+        help='Job launcher')
+    parser.add_argument(
+        '--tta', action='store_true', help='Test time augmentation')
+    # When using PyTorch version >= 2.0.0, the `torch.distributed.launch`
+    # will pass the `--local-rank` parameter to `tools/test.py` instead
+    # of `--local_rank`.
+    parser.add_argument('--local_rank', '--local-rank', type=int, default=0)
+    args = parser.parse_args()
+    if 'LOCAL_RANK' not in os.environ:
+        os.environ['LOCAL_RANK'] = str(args.local_rank)
+    return args
+
+
+def trigger_visualization_hook(cfg, args):
+    default_hooks = cfg.default_hooks
+    if 'visualization' in default_hooks:
+        visualization_hook = default_hooks['visualization']
+        # Turn on visualization
+        visualization_hook['enable'] = True
+        visualization_hook['draw_gt'] = True
+        visualization_hook['draw_pred'] = True
+        if args.show:
+            visualization_hook['show'] = True
+            visualization_hook['wait_time'] = args.wait_time
+        if args.show_dir:
+            cfg.visualizer['save_dir'] = args.show_dir
+            cfg.visualizer['vis_backends'] = [dict(type='LocalVisBackend')]
+    else:
+        raise RuntimeError(
+            'VisualizationHook must be included in default_hooks.'
+            'refer to usage '
+            '"visualization=dict(type=\'VisualizationHook\')"')
+
+    return cfg
+
+
+def main():
+    args = parse_args()
+
+    # load config
+    cfg = Config.fromfile(args.config)
+    cfg.launcher = args.launcher
+    if args.cfg_options is not None:
+        cfg.merge_from_dict(args.cfg_options)
+
+    # work_dir is determined in this priority: CLI > segment in file > filename
+    if args.work_dir is not None:
+        # update configs according to CLI args if args.work_dir is not None
+        cfg.work_dir = args.work_dir
+    elif cfg.get('work_dir', None) is None:
+        # use config filename as default work_dir if cfg.work_dir is None
+        cfg.work_dir = osp.join('./work_dirs',
+                                osp.splitext(osp.basename(args.config))[0])
+
+    cfg.load_from = args.checkpoint
+
+    # TODO: It will be supported after refactoring the visualizer
+    if args.show and args.show_dir:
+        raise NotImplementedError('--show and --show-dir cannot be set '
+                                  'at the same time')
+
+    if args.show or args.show_dir:
+        cfg = trigger_visualization_hook(cfg, args)
+
+    if args.tta:
+        cfg.test_dataloader.dataset.pipeline = cfg.tta_pipeline
+        cfg.tta_model.module = cfg.model
+        cfg.model = cfg.tta_model
+
+    # save predictions
+    if args.save_preds:
+        dump_metric = dict(
+            type='DumpResults',
+            out_file_path=osp.join(
+                cfg.work_dir,
+                f'{osp.basename(args.checkpoint)}_predictions.pkl'))
+        if isinstance(cfg.test_evaluator, (list, tuple)):
+            cfg.test_evaluator = list(cfg.test_evaluator)
+            cfg.test_evaluator.append(dump_metric)
+        else:
+            cfg.test_evaluator = [cfg.test_evaluator, dump_metric]
+
+    # build the runner from config
+    if 'runner_type' not in cfg:
+        # build the default runner
+        runner = Runner.from_cfg(cfg)
+    else:
+        # build customized runner from the registry
+        # if 'runner_type' is set in the cfg
+        runner = RUNNERS.build(cfg)
+
+    # start testing
+    runner.test()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/train.py b/mmocr-dev-1.x/tools/train.py
new file mode 100755
index 0000000000000000000000000000000000000000..349cbb3ef4fc74c821c9bd4266ecacdd6acd8cc2
--- /dev/null
+++ b/mmocr-dev-1.x/tools/train.py
@@ -0,0 +1,113 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import logging
+import os
+import os.path as osp
+
+from mmengine.config import Config, DictAction
+from mmengine.logging import print_log
+from mmengine.registry import RUNNERS
+from mmengine.runner import Runner
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Train a model')
+    parser.add_argument('config', help='Train config file path')
+    parser.add_argument('--work-dir', help='The dir to save logs and models')
+    parser.add_argument(
+        '--resume', action='store_true', help='Whether to resume checkpoint.')
+    parser.add_argument(
+        '--amp',
+        action='store_true',
+        default=False,
+        help='Enable automatic-mixed-precision training')
+    parser.add_argument(
+        '--auto-scale-lr',
+        action='store_true',
+        help='Whether to scale the learning rate automatically. It requires '
+        '`auto_scale_lr` in config, and `base_batch_size` in `auto_scale_lr`')
+    parser.add_argument(
+        '--cfg-options',
+        nargs='+',
+        action=DictAction,
+        help='Override some settings in the used config, the key-value pair '
+        'in xxx=yyy format will be merged into config file. If the value to '
+        'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
+        'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
+        'Note that the quotation marks are necessary and that no white space '
+        'is allowed.')
+    parser.add_argument(
+        '--launcher',
+        choices=['none', 'pytorch', 'slurm', 'mpi'],
+        default='none',
+        help='Job launcher')
+    # When using PyTorch version >= 2.0.0, the `torch.distributed.launch`
+    # will pass the `--local-rank` parameter to `tools/train.py` instead
+    # of `--local_rank`.
+    parser.add_argument('--local_rank', '--local-rank', type=int, default=0)
+    args = parser.parse_args()
+    if 'LOCAL_RANK' not in os.environ:
+        os.environ['LOCAL_RANK'] = str(args.local_rank)
+
+    return args
+
+
+def main():
+    args = parse_args()
+    # load config
+    cfg = Config.fromfile(args.config)
+    cfg.launcher = args.launcher
+    if args.cfg_options is not None:
+        cfg.merge_from_dict(args.cfg_options)
+
+    # work_dir is determined in this priority: CLI > segment in file > filename
+    if args.work_dir is not None:
+        # update configs according to CLI args if args.work_dir is not None
+        cfg.work_dir = args.work_dir
+    elif cfg.get('work_dir', None) is None:
+        # use config filename as default work_dir if cfg.work_dir is None
+        cfg.work_dir = osp.join('./work_dirs',
+                                osp.splitext(osp.basename(args.config))[0])
+    # enable automatic-mixed-precision training
+    if args.amp:
+        optim_wrapper = cfg.optim_wrapper.type
+        if optim_wrapper == 'AmpOptimWrapper':
+            print_log(
+                'AMP training is already enabled in your config.',
+                logger='current',
+                level=logging.WARNING)
+        else:
+            assert optim_wrapper == 'OptimWrapper', (
+                '`--amp` is only supported when the optimizer wrapper type is '
+                f'`OptimWrapper` but got {optim_wrapper}.')
+            cfg.optim_wrapper.type = 'AmpOptimWrapper'
+            cfg.optim_wrapper.loss_scale = 'dynamic'
+
+    if args.resume:
+        cfg.resume = True
+
+    # enable automatically scaling LR
+    if args.auto_scale_lr:
+        if 'auto_scale_lr' in cfg and \
+                'base_batch_size' in cfg.auto_scale_lr:
+            cfg.auto_scale_lr.enable = True
+        else:
+            raise RuntimeError('Can not find "auto_scale_lr" or '
+                               '"auto_scale_lr.base_batch_size" in your'
+                               ' configuration file.')
+
+    # build the runner from config
+    if 'runner_type' not in cfg:
+        # build the default runner
+        runner = Runner.from_cfg(cfg)
+    else:
+        # build customized runner from the registry
+        # if 'runner_type' is set in the cfg
+        runner = RUNNERS.build(cfg)
+
+    # start training
+    runner.train()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/visualizations/browse_dataset.py b/mmocr-dev-1.x/tools/visualizations/browse_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..d92ee83f586005de5b14ed95066c778547baa0d4
--- /dev/null
+++ b/mmocr-dev-1.x/tools/visualizations/browse_dataset.py
@@ -0,0 +1,415 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import os.path as osp
+import sys
+from typing import Optional, Tuple
+
+import cv2
+import mmcv
+import numpy as np
+from mmengine.config import Config, DictAction
+from mmengine.dataset import Compose
+from mmengine.registry import init_default_scope
+from mmengine.utils import ProgressBar
+from mmengine.visualization import Visualizer
+
+from mmocr.registry import DATASETS, VISUALIZERS
+
+
+# TODO: Support for printing the change in key of results
+def parse_args():
+    parser = argparse.ArgumentParser(description='Browse a dataset')
+    parser.add_argument('config', help='Path to model or dataset config.')
+    parser.add_argument(
+        '--phase',
+        '-p',
+        default='train',
+        type=str,
+        help='Phase of dataset to visualize. Use "train", "test" or "val" if '
+        "you just want to visualize the default split. It's also possible to "
+        'be a dataset variable name, which might be useful when a dataset '
+        'split has multiple variants in the config.')
+    parser.add_argument(
+        '--mode',
+        '-m',
+        default='transformed',
+        type=str,
+        choices=['original', 'transformed', 'pipeline'],
+        help='Display mode: display original pictures or '
+        'transformed pictures or comparison pictures. "original" '
+        'only visualizes the original dataset & annotations; '
+        '"transformed" shows the resulting images processed through all the '
+        'transforms; "pipeline" shows all the intermediate images. '
+        'Defaults to "transformed".')
+    parser.add_argument(
+        '--output-dir',
+        '-o',
+        default=None,
+        type=str,
+        help='If there is no display interface, you can save it.')
+    parser.add_argument(
+        '--task',
+        '-t',
+        default='auto',
+        choices=['auto', 'textdet', 'textrecog'],
+        type=str,
+        help='Specify the task type of the dataset. If "auto", the task type '
+        'will be inferred from the config. If the script is unable to infer '
+        'the task type, you need to specify it manually. Defaults to "auto".')
+    parser.add_argument('--not-show', default=False, action='store_true')
+    parser.add_argument(
+        '--show-number',
+        '-n',
+        type=int,
+        default=sys.maxsize,
+        help='number of images selected to visualize, '
+        'must bigger than 0. if the number is bigger than length '
+        'of dataset, show all the images in dataset; '
+        'default "sys.maxsize", show all images in dataset')
+    parser.add_argument(
+        '--show-interval',
+        '-i',
+        type=float,
+        default=3,
+        help='the interval of show (s)')
+    parser.add_argument(
+        '--cfg-options',
+        nargs='+',
+        action=DictAction,
+        help='override some settings in the used config, the key-value pair '
+        'in xxx=yyy format will be merged into config file. If the value to '
+        'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
+        'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
+        'Note that the quotation marks are necessary and that no white space '
+        'is allowed.')
+    args = parser.parse_args()
+    return args
+
+
+def _get_adaptive_scale(img_shape: Tuple[int, int],
+                        min_scale: float = 0.3,
+                        max_scale: float = 3.0) -> float:
+    """Get adaptive scale according to image shape.
+
+    The target scale depends on the the short edge length of the image. If the
+    short edge length equals 224, the output is 1.0. And output linear
+    scales according the short edge length. You can also specify the minimum
+    scale and the maximum scale to limit the linear scale.
+
+    Args:
+        img_shape (Tuple[int, int]): The shape of the canvas image.
+        min_scale (int): The minimum scale. Defaults to 0.3.
+        max_scale (int): The maximum scale. Defaults to 3.0.
+
+    Returns:
+        int: The adaptive scale.
+    """
+    short_edge_length = min(img_shape)
+    scale = short_edge_length / 224.
+    return min(max(scale, min_scale), max_scale)
+
+
+def make_grid(imgs, infos):
+    """Concat list of pictures into a single big picture, align height here."""
+    visualizer = Visualizer.get_current_instance()
+    names = [info['name'] for info in infos]
+    ori_shapes = [
+        info['dataset_sample'].metainfo['img_shape'] for info in infos
+    ]
+    max_height = int(max(img.shape[0] for img in imgs) * 1.1)
+    min_width = min(img.shape[1] for img in imgs)
+    horizontal_gap = min_width // 10
+    img_scale = _get_adaptive_scale((max_height, min_width))
+
+    texts = []
+    text_positions = []
+    start_x = 0
+    for i, img in enumerate(imgs):
+        pad_height = (max_height - img.shape[0]) // 2
+        pad_width = horizontal_gap // 2
+        # make border
+        imgs[i] = cv2.copyMakeBorder(
+            img,
+            pad_height,
+            max_height - img.shape[0] - pad_height + int(img_scale * 30 * 2),
+            pad_width,
+            pad_width,
+            cv2.BORDER_CONSTANT,
+            value=(255, 255, 255))
+        texts.append(f'{"execution: "}{i}\n{names[i]}\n{ori_shapes[i]}')
+        text_positions.append(
+            [start_x + img.shape[1] // 2 + pad_width, max_height])
+        start_x += img.shape[1] + horizontal_gap
+
+    display_img = np.concatenate(imgs, axis=1)
+    visualizer.set_image(display_img)
+    img_scale = _get_adaptive_scale(display_img.shape[:2])
+    visualizer.draw_texts(
+        texts,
+        positions=np.array(text_positions),
+        font_sizes=img_scale * 7,
+        colors='black',
+        horizontal_alignments='center',
+        font_families='monospace')
+    return visualizer.get_image()
+
+
+class InspectCompose(Compose):
+    """Compose multiple transforms sequentially.
+
+    And record "img" field of all results in one list.
+    """
+
+    def __init__(self, transforms, intermediate_imgs):
+        super().__init__(transforms=transforms)
+        self.intermediate_imgs = intermediate_imgs
+
+    def __call__(self, data):
+        self.ptransforms = [
+            self.transforms[i] for i in range(len(self.transforms) - 1)
+        ]
+        for t in self.ptransforms:
+            data = t(data)
+            # Keep the same meta_keys in the PackTextDetInputs
+            # or PackTextRecogInputs
+            self.transforms[-1].meta_keys = [key for key in data]
+            data_sample = self.transforms[-1](data)
+            if data is None:
+                return None
+            if 'img' in data:
+                self.intermediate_imgs.append({
+                    'name':
+                    t.__class__.__name__,
+                    'dataset_sample':
+                    data_sample['data_samples']
+                })
+        return data
+
+
+def infer_dataset_task(task: str,
+                       dataset_cfg: Config,
+                       var_name: Optional[str] = None) -> str:
+    """Try to infer the dataset's task type from the config and the variable
+    name."""
+    if task != 'auto':
+        return task
+
+    if dataset_cfg.pipeline is not None:
+        if dataset_cfg.pipeline[-1].type == 'PackTextDetInputs':
+            return 'textdet'
+        elif dataset_cfg.pipeline[-1].type == 'PackTextRecogInputs':
+            return 'textrecog'
+
+    if var_name is not None:
+        if 'det' in var_name:
+            return 'textdet'
+        elif 'rec' in var_name:
+            return 'textrecog'
+
+    raise ValueError(
+        'Unable to infer the task type from dataset pipeline '
+        'or variable name. Please specify the task type with --task argument '
+        'explicitly.')
+
+
+def obtain_dataset_cfg(cfg: Config, phase: str, mode: str, task: str) -> Tuple:
+    """Obtain dataset and visualizer from config. Two modes are supported:
+    1. Model Config Mode:
+        In this mode, the input config should be a complete model config, which
+        includes a dataset within pipeline and a visualizer.
+    2. Dataset Config Mode:
+        In this mode, the input config should be a complete dataset config,
+        which only includes basic dataset information, and it may does not
+        contain a visualizer and dataset pipeline.
+
+    Examples:
+        Typically, the model config files are stored in
+        `configs/textdet/dbnet/xxx.py` and should look like:
+        >>> train_dataloader = dict(
+        >>>     batch_size=16,
+        >>>     num_workers=8,
+        >>>     persistent_workers=True,
+        >>>     sampler=dict(type='DefaultSampler', shuffle=True),
+        >>>     dataset=icdar2015_textdet_train)
+
+        while the dataset config files are stored in
+        `configs/textdet/_base_/datasets/xxx.py` and should be like:
+        >>> icdar2015_textdet_train = dict(
+        >>>     type='OCRDataset',
+        >>>     data_root=ic15_det_data_root,
+        >>>     ann_file='textdet_train.json',
+        >>>     filter_cfg=dict(filter_empty_gt=True, min_size=32),
+        >>>     pipeline=None)
+
+    Args:
+        cfg (Config): Config object.
+        phase (str): The dataset phase to visualize.
+        mode (str): Script mode.
+        task (str): The current task type.
+
+    Returns:
+        Tuple: Tuple of (dataset, visualizer).
+    """
+    default_cfgs = dict(
+        textdet=dict(
+            visualizer=dict(
+                type='TextDetLocalVisualizer',
+                name='visualizer',
+                vis_backends=[dict(type='LocalVisBackend')]),
+            pipeline=[
+                dict(
+                    type='LoadImageFromFile',
+                    color_type='color_ignore_orientation'),
+                dict(
+                    type='LoadOCRAnnotations',
+                    with_polygon=True,
+                    with_bbox=True,
+                    with_label=True,
+                ),
+                dict(
+                    type='PackTextDetInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape'))
+            ]),
+        textrecog=dict(
+            visualizer=dict(
+                type='TextRecogLocalVisualizer',
+                name='visualizer',
+                vis_backends=[dict(type='LocalVisBackend')]),
+            pipeline=[
+                dict(type='LoadImageFromFile', ignore_empty=True, min_size=2),
+                dict(type='LoadOCRAnnotations', with_text=True),
+                dict(
+                    type='PackTextRecogInputs',
+                    meta_keys=('img_path', 'ori_shape', 'img_shape',
+                               'valid_ratio'))
+            ]),
+    )
+
+    # Model config mode
+    dataloader_name = f'{phase}_dataloader'
+    if dataloader_name in cfg:
+        dataset = cfg.get(dataloader_name).dataset
+        visualizer = cfg.visualizer
+
+        if mode == 'original':
+            default_cfg = default_cfgs[infer_dataset_task(task, dataset)]
+            # Image can be stored in other methods, like LMDB,
+            # which LoadImageFromFile can not handle
+            if dataset.pipeline is not None:
+                all_transform_types = [tfm['type'] for tfm in dataset.pipeline]
+                if any([
+                        tfm_type.startswith('LoadImageFrom')
+                        for tfm_type in all_transform_types
+                ]):
+                    for tfm in dataset.pipeline:
+                        if tfm['type'].startswith('LoadImageFrom'):
+                            # update LoadImageFrom** transform
+                            default_cfg['pipeline'][0] = tfm
+            dataset.pipeline = default_cfg['pipeline']
+        else:
+            # In test_pipeline LoadOCRAnnotations is placed behind
+            # other transforms. Transform will not be applied on
+            # gt annotation.
+            if phase == 'test':
+                all_transform_types = [tfm['type'] for tfm in dataset.pipeline]
+                load_ocr_ann_tfm_index = all_transform_types.index(
+                    'LoadOCRAnnotations')
+                load_ocr_ann_tfm = dataset.pipeline.pop(load_ocr_ann_tfm_index)
+                dataset.pipeline.insert(1, load_ocr_ann_tfm)
+
+        return dataset, visualizer
+
+    # Dataset config mode
+
+    for key in cfg.keys():
+        if key.endswith(phase) and cfg[key]['type'].endswith('Dataset'):
+            dataset = cfg[key]
+            default_cfg = default_cfgs[infer_dataset_task(
+                task, dataset, key.lower())]
+            visualizer = default_cfg['visualizer']
+            dataset['pipeline'] = default_cfg['pipeline'] if dataset[
+                'pipeline'] is None else dataset['pipeline']
+
+            return dataset, visualizer
+
+    raise ValueError(
+        f'Unable to find "{phase}_dataloader" or any dataset variable ending '
+        f'with "{phase}". Please check your config file or --phase argument '
+        'and try again. More details can be found in the docstring of '
+        'obtain_dataset_cfg function. Or, you may visit the documentation via '
+        'https://mmocr.readthedocs.io/en/dev-1.x/user_guides/useful_tools.html#dataset-visualization-tool'  # noqa: E501
+    )
+
+
+def main():
+    args = parse_args()
+    cfg = Config.fromfile(args.config)
+    if args.cfg_options is not None:
+        cfg.merge_from_dict(args.cfg_options)
+
+    init_default_scope(cfg.get('default_scope', 'mmocr'))
+
+    dataset_cfg, visualizer_cfg = obtain_dataset_cfg(cfg, args.phase,
+                                                     args.mode, args.task)
+    dataset = DATASETS.build(dataset_cfg)
+    visualizer = VISUALIZERS.build(visualizer_cfg)
+    visualizer.dataset_meta = dataset.metainfo
+
+    intermediate_imgs = []
+
+    if dataset_cfg.type == 'ConcatDataset':
+        for sub_dataset in dataset.datasets:
+            sub_dataset.pipeline = InspectCompose(
+                sub_dataset.pipeline.transforms, intermediate_imgs)
+    else:
+        dataset.pipeline = InspectCompose(dataset.pipeline.transforms,
+                                          intermediate_imgs)
+
+    # init visualization image number
+    assert args.show_number > 0
+    display_number = min(args.show_number, len(dataset))
+
+    progress_bar = ProgressBar(display_number)
+    # fetching items from dataset is a must for visualization
+    for i, _ in zip(range(display_number), dataset):
+        image_i = []
+        result_i = [result['dataset_sample'] for result in intermediate_imgs]
+        for k, datasample in enumerate(result_i):
+            image = datasample.img
+            if len(image.shape) == 3:
+                image = image[..., [2, 1, 0]]  # bgr to rgb
+            image_show = visualizer.add_datasample(
+                'result',
+                image,
+                datasample,
+                draw_pred=False,
+                draw_gt=True,
+                show=False)
+            image_i.append(image_show)
+
+        if args.mode == 'pipeline':
+            image = make_grid(image_i, intermediate_imgs)
+        else:
+            image = image_i[-1]
+
+        if hasattr(datasample, 'img_path'):
+            filename = osp.basename(datasample.img_path)
+        else:
+            # some dataset have not image path
+            filename = f'{i}.jpg'
+        out_file = osp.join(args.output_dir,
+                            filename) if args.output_dir is not None else None
+
+        if out_file is not None:
+            mmcv.imwrite(image[..., ::-1], out_file)
+
+        if not args.not_show:
+            visualizer.show(
+                image, win_name=filename, wait_time=args.show_interval)
+
+        intermediate_imgs.clear()
+        progress_bar.update()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/mmocr-dev-1.x/tools/visualizations/vis_scheduler.py b/mmocr-dev-1.x/tools/visualizations/vis_scheduler.py
new file mode 100644
index 0000000000000000000000000000000000000000..4a2d4a3c7e75f9cba0b82456ec009acef214f5fc
--- /dev/null
+++ b/mmocr-dev-1.x/tools/visualizations/vis_scheduler.py
@@ -0,0 +1,286 @@
+# Copyright (c) OpenMMLab. All rights reserved.
+import argparse
+import json
+import os.path as osp
+import re
+from pathlib import Path
+from unittest.mock import MagicMock
+
+import matplotlib.pyplot as plt
+import rich
+import torch.nn as nn
+from mmengine.config import Config, DictAction
+from mmengine.hooks import Hook
+from mmengine.model import BaseModel
+from mmengine.registry import init_default_scope
+from mmengine.runner import Runner
+from mmengine.visualization import Visualizer
+from rich.progress import BarColumn, MofNCompleteColumn, Progress, TextColumn
+
+from mmocr.registry import DATASETS
+
+
+class SimpleModel(BaseModel):
+    """simple model that do nothing in train_step."""
+
+    def __init__(self):
+        super(SimpleModel, self).__init__()
+        self.data_preprocessor = nn.Identity()
+        self.conv = nn.Conv2d(1, 1, 1)
+
+    def forward(self, inputs, data_samples, mode='tensor'):
+        pass
+
+    def train_step(self, data, optim_wrapper):
+        pass
+
+
+class ParamRecordHook(Hook):
+
+    def __init__(self, by_epoch):
+        super().__init__()
+        self.by_epoch = by_epoch
+        self.lr_list = []
+        self.momentum_list = []
+        self.wd_list = []
+        self.task_id = 0
+        self.progress = Progress(BarColumn(), MofNCompleteColumn(),
+                                 TextColumn('{task.description}'))
+
+    def before_train(self, runner):
+        if self.by_epoch:
+            total = runner.train_loop.max_epochs
+            self.task_id = self.progress.add_task(
+                'epochs', start=True, total=total)
+        else:
+            total = runner.train_loop.max_iters
+            self.task_id = self.progress.add_task(
+                'iters', start=True, total=total)
+        self.progress.start()
+
+    def after_train_epoch(self, runner):
+        if self.by_epoch:
+            self.progress.update(self.task_id, advance=1)
+
+    def after_train_iter(self, runner, batch_idx, data_batch, outputs):
+        if not self.by_epoch:
+            self.progress.update(self.task_id, advance=1)
+        self.lr_list.append(runner.optim_wrapper.get_lr()['lr'][0])
+        self.momentum_list.append(
+            runner.optim_wrapper.get_momentum()['momentum'][0])
+        self.wd_list.append(
+            runner.optim_wrapper.param_groups[0]['weight_decay'])
+
+    def after_train(self, runner):
+        self.progress.stop()
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description='Visualize a Dataset Pipeline')
+    parser.add_argument('config', help='config file path')
+    parser.add_argument(
+        '-p',
+        '--parameter',
+        type=str,
+        default='lr',
+        choices=['lr', 'momentum', 'wd'],
+        help='The parameter to visualize its change curve, choose from'
+        '"lr", "wd" and "momentum". Defaults to "lr".')
+    parser.add_argument(
+        '-d',
+        '--dataset-size',
+        type=int,
+        help='The size of the dataset. If specify, `build_dataset` will '
+        'be skipped and use this size as the dataset size.')
+    parser.add_argument(
+        '-n',
+        '--ngpus',
+        type=int,
+        default=1,
+        help='The number of GPUs used in training.')
+    parser.add_argument(
+        '-s',
+        '--save-path',
+        type=Path,
+        help='The learning rate curve plot save path')
+    parser.add_argument(
+        '--log-level',
+        default='WARNING',
+        help='The log level of the handler and logger. Defaults to '
+        'WARNING.')
+    parser.add_argument('--title', type=str, help='title of figure')
+    parser.add_argument(
+        '--style', type=str, default='whitegrid', help='style of plt')
+    parser.add_argument('--not-show', default=False, action='store_true')
+    parser.add_argument(
+        '--window-size',
+        default='12*7',
+        help='Size of the window to display images, in format of "$W*$H".')
+    parser.add_argument(
+        '--cfg-options',
+        nargs='+',
+        action=DictAction,
+        help='override some settings in the used config, the key-value pair '
+        'in xxx=yyy format will be merged into config file. If the value to '
+        'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
+        'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
+        'Note that the quotation marks are necessary and that no white space '
+        'is allowed.')
+    args = parser.parse_args()
+    if args.window_size != '':
+        assert re.match(r'\d+\*\d+', args.window_size), \
+            "'window-size' must be in format 'W*H'."
+
+    return args
+
+
+def plot_curve(lr_list, args, param_name, iters_per_epoch, by_epoch=True):
+    """Plot learning rate vs iter graph."""
+    try:
+        import seaborn as sns
+        sns.set_style(args.style)
+    except ImportError:
+        pass
+
+    wind_w, wind_h = args.window_size.split('*')
+    wind_w, wind_h = int(wind_w), int(wind_h)
+    plt.figure(figsize=(wind_w, wind_h))
+
+    ax: plt.Axes = plt.subplot()
+    ax.plot(lr_list, linewidth=1)
+
+    if by_epoch:
+        ax.xaxis.tick_top()
+        ax.set_xlabel('Iters')
+        ax.xaxis.set_label_position('top')
+        sec_ax = ax.secondary_xaxis(
+            'bottom',
+            functions=(lambda x: x / iters_per_epoch,
+                       lambda y: y * iters_per_epoch))
+        sec_ax.set_xlabel('Epochs')
+    else:
+        plt.xlabel('Iters')
+    plt.ylabel(param_name)
+
+    if args.title is None:
+        plt.title(f'{osp.basename(args.config)} {param_name} curve')
+    else:
+        plt.title(args.title)
+
+
+def simulate_train(data_loader, cfg, by_epoch):
+    model = SimpleModel()
+    param_record_hook = ParamRecordHook(by_epoch=by_epoch)
+    default_hooks = dict(
+        param_scheduler=cfg.default_hooks['param_scheduler'],
+        runtime_info=None,
+        timer=None,
+        logger=None,
+        checkpoint=None,
+        sampler_seed=None,
+        param_record=param_record_hook)
+
+    runner = Runner(
+        model=model,
+        work_dir=cfg.work_dir,
+        train_dataloader=data_loader,
+        train_cfg=cfg.train_cfg,
+        log_level=cfg.log_level,
+        optim_wrapper=cfg.optim_wrapper,
+        param_scheduler=cfg.param_scheduler,
+        default_scope=cfg.default_scope,
+        default_hooks=default_hooks,
+        visualizer=MagicMock(spec=Visualizer),
+        custom_hooks=cfg.get('custom_hooks', None))
+
+    runner.train()
+
+    param_dict = dict(
+        lr=param_record_hook.lr_list,
+        momentum=param_record_hook.momentum_list,
+        wd=param_record_hook.wd_list)
+
+    return param_dict
+
+
+def build_dataset(cfg):
+    return DATASETS.build(cfg)
+
+
+def main():
+    args = parse_args()
+    cfg = Config.fromfile(args.config)
+
+    init_default_scope(cfg.get('default_scope', 'mmocr'))
+
+    if args.cfg_options is not None:
+        cfg.merge_from_dict(args.cfg_options)
+    if cfg.get('work_dir', None) is None:
+        # use config filename as default work_dir if cfg.work_dir is None
+        cfg.work_dir = osp.join('./work_dirs',
+                                osp.splitext(osp.basename(args.config))[0])
+
+    cfg.log_level = args.log_level
+
+    # make sure save_root exists
+    if args.save_path and not args.save_path.parent.exists():
+        raise FileNotFoundError(
+            f'The save path is {args.save_path}, and directory '
+            f"'{args.save_path.parent}' do not exist.")
+
+    # init logger
+    print('Param_scheduler :')
+    rich.print_json(json.dumps(cfg.param_scheduler))
+
+    # prepare data loader
+    batch_size = cfg.train_dataloader.batch_size * args.ngpus
+
+    if 'by_epoch' in cfg.train_cfg:
+        by_epoch = cfg.train_cfg.get('by_epoch')
+    elif 'type' in cfg.train_cfg:
+        by_epoch = cfg.train_cfg.get('type') == 'EpochBasedTrainLoop'
+    else:
+        raise ValueError('please set `train_cfg`.')
+
+    if args.dataset_size is None and by_epoch:
+        dataset_size = len(build_dataset(cfg.train_dataloader.dataset))
+    else:
+        dataset_size = args.dataset_size or batch_size
+
+    class FakeDataloader(list):
+        dataset = MagicMock(metainfo=None)
+
+    data_loader = FakeDataloader(range(dataset_size // batch_size))
+    dataset_info = (
+        f'\nDataset infos:'
+        f'\n - Dataset size: {dataset_size}'
+        f'\n - Batch size per GPU: {cfg.train_dataloader.batch_size}'
+        f'\n - Number of GPUs: {args.ngpus}'
+        f'\n - Total batch size: {batch_size}')
+    if by_epoch:
+        dataset_info += f'\n - Iterations per epoch: {len(data_loader)}'
+    rich.print(dataset_info + '\n')
+
+    # simulation training process
+    param_dict = simulate_train(data_loader, cfg, by_epoch)
+    param_list = param_dict[args.parameter]
+
+    if args.parameter == 'lr':
+        param_name = 'Learning Rate'
+    elif args.parameter == 'momentum':
+        param_name = 'Momentum'
+    else:
+        param_name = 'Weight Decay'
+    plot_curve(param_list, args, param_name, len(data_loader), by_epoch)
+
+    if args.save_path:
+        plt.savefig(args.save_path)
+        print(f'\nThe {param_name} graph is saved at {args.save_path}')
+
+    if not args.not_show:
+        plt.show()
+
+
+if __name__ == '__main__':
+    main()