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| 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')) | |
| ] | |