app.py

# Copyright (C) 2024-present Naver Corporation. All rights reserved.
# Licensed under CC BY-NC-SA 4.0 (non-commercial use only).
#
# --------------------------------------------------------
# gradio demo
# --------------------------------------------------------
import os
import sys
sys.path.append(os.path.abspath('./modules'))

import math
import tempfile
import gradio
import torch
import spaces
import numpy as np
import functools
import trimesh
import copy
from PIL import Image
from scipy.spatial.transform import Rotation

from modules.pe3r.images import Images

from modules.dust3r.inference import inference
from modules.dust3r.image_pairs import make_pairs
from modules.dust3r.utils.image import load_images, rgb
from modules.dust3r.utils.device import to_numpy
from modules.dust3r.viz import add_scene_cam, CAM_COLORS, OPENGL, pts3d_to_trimesh, cat_meshes
from modules.dust3r.cloud_opt import global_aligner, GlobalAlignerMode
from copy import deepcopy
import cv2
from typing import Any, Dict, Generator,List
import matplotlib.pyplot as pl

from modules.mobilesamv2.utils.transforms import ResizeLongestSide
from modules.pe3r.models import Models
import torchvision.transforms as tvf


silent = False
device = 'cuda' if torch.cuda.is_available() else 'cpu'
pe3r = Models(device)


def _convert_scene_output_to_glb(outdir, imgs, pts3d, mask, focals, cams2world, cam_size=0.05,
                                 cam_color=None, as_pointcloud=False,
                                 transparent_cams=False):
    assert len(pts3d) == len(mask) <= len(imgs) <= len(cams2world) == len(focals)
    pts3d = to_numpy(pts3d)
    imgs = to_numpy(imgs)
    focals = to_numpy(focals)
    cams2world = to_numpy(cams2world)

    scene = trimesh.Scene()

    # full pointcloud
    if as_pointcloud:
        pts = np.concatenate([p[m] for p, m in zip(pts3d, mask)])
        col = np.concatenate([p[m] for p, m in zip(imgs, mask)])
        pct = trimesh.PointCloud(pts.reshape(-1, 3), colors=col.reshape(-1, 3))
        scene.add_geometry(pct)
    else:
        meshes = []
        for i in range(len(imgs)):
            meshes.append(pts3d_to_trimesh(imgs[i], pts3d[i], mask[i]))
        mesh = trimesh.Trimesh(**cat_meshes(meshes))
        scene.add_geometry(mesh)

    # add each camera
    for i, pose_c2w in enumerate(cams2world):
        if isinstance(cam_color, list):
            camera_edge_color = cam_color[i]
        else:
            camera_edge_color = cam_color or CAM_COLORS[i % len(CAM_COLORS)]
        add_scene_cam(scene, pose_c2w, camera_edge_color,
                      None if transparent_cams else imgs[i], focals[i],
                      imsize=imgs[i].shape[1::-1], screen_width=cam_size)

    rot = np.eye(4)
    rot[:3, :3] = Rotation.from_euler('y', np.deg2rad(180)).as_matrix()
    scene.apply_transform(np.linalg.inv(cams2world[0] @ OPENGL @ rot))
    outfile = os.path.join(outdir, 'scene.glb')
    if not silent:
        print('(exporting 3D scene to', outfile, ')')
    scene.export(file_obj=outfile)
    return outfile

def get_3D_model_from_scene(outdir, scene, min_conf_thr=3, as_pointcloud=False, mask_sky=False,
                            clean_depth=False, transparent_cams=False, cam_size=0.05):
    """
    extract 3D_model (glb file) from a reconstructed scene
    """
    if scene is None:
        return None
    # post processes
    if clean_depth:
        scene = scene.clean_pointcloud()
    if mask_sky:
        scene = scene.mask_sky()

    # get optimized values from scene
    rgbimg = scene.ori_imgs
    focals = scene.get_focals().cpu()
    cams2world = scene.get_im_poses().cpu()
    # 3D pointcloud from depthmap, poses and intrinsics
    pts3d = to_numpy(scene.get_pts3d())
    scene.min_conf_thr = float(scene.conf_trf(torch.tensor(min_conf_thr)))
    msk = to_numpy(scene.get_masks())
    return _convert_scene_output_to_glb(outdir, rgbimg, pts3d, msk, focals, cams2world, as_pointcloud=as_pointcloud,
                                        transparent_cams=transparent_cams, cam_size=cam_size)

def mask_nms(masks, threshold=0.8):
    keep = []
    mask_num = len(masks)
    suppressed = np.zeros((mask_num), dtype=np.int64)
    for i in range(mask_num):
        if suppressed[i] == 1:
            continue
        keep.append(i)
        for j in range(i + 1, mask_num):
            if suppressed[j] == 1:
                continue
            intersection = (masks[i] & masks[j]).sum()
            if min(intersection / masks[i].sum(), intersection / masks[j].sum()) > threshold:
                suppressed[j] = 1
    return keep

def filter(masks, keep):
    ret = []
    for i, m in enumerate(masks):
        if i in keep: ret.append(m)
    return ret

def mask_to_box(mask):
    if mask.sum() == 0:
        return np.array([0, 0, 0, 0])
    
    # Get the rows and columns where the mask is 1
    rows = np.any(mask, axis=1)
    cols = np.any(mask, axis=0)
    
    # Get top, bottom, left, right edges
    top = np.argmax(rows)
    bottom = len(rows) - 1 - np.argmax(np.flip(rows))
    left = np.argmax(cols)
    right = len(cols) - 1 - np.argmax(np.flip(cols))
    
    return np.array([left, top, right, bottom])

def box_xyxy_to_xywh(box_xyxy):
    box_xywh = deepcopy(box_xyxy)
    box_xywh[2] = box_xywh[2] - box_xywh[0]
    box_xywh[3] = box_xywh[3] - box_xywh[1]
    return box_xywh

def get_seg_img(mask, box, image):
    image = image.copy()
    x, y, w, h = box
    # image[mask == 0] = np.array([0, 0, 0], dtype=np.uint8)
    box_area = w * h
    mask_area = mask.sum()
    if 1 - (mask_area / box_area) < 0.2:
        image[mask == 0] = np.array([0, 0, 0], dtype=np.uint8)
    else:
        random_values = np.random.randint(0, 255, size=image.shape, dtype=np.uint8)
        image[mask == 0] = random_values[mask == 0]
    seg_img = image[y:y+h, x:x+w, ...]
    return seg_img

def pad_img(img):
    h, w, _ = img.shape
    l = max(w,h) 
    pad = np.zeros((l,l,3), dtype=np.uint8) # 
    if h > w:
        pad[:,(h-w)//2:(h-w)//2 + w, :] = img
    else:
        pad[(w-h)//2:(w-h)//2 + h, :, :] = img
    return pad

def batch_iterator(batch_size: int, *args) -> Generator[List[Any], None, None]:
    assert len(args) > 0 and all(
        len(a) == len(args[0]) for a in args
    ), "Batched iteration must have inputs of all the same size."
    n_batches = len(args[0]) // batch_size + int(len(args[0]) % batch_size != 0)
    for b in range(n_batches):
        yield [arg[b * batch_size : (b + 1) * batch_size] for arg in args]

def slerp(u1, u2, t):
    """
    Perform spherical linear interpolation (Slerp) between two unit vectors.
    
    Args:
    - u1 (torch.Tensor): First unit vector, shape (1024,)
    - u2 (torch.Tensor): Second unit vector, shape (1024,)
    - t (float): Interpolation parameter
    
    Returns:
    - torch.Tensor: Interpolated vector, shape (1024,)
    """
    # Compute the dot product
    dot_product = torch.sum(u1 * u2)
    
    # Ensure the dot product is within the valid range [-1, 1]
    dot_product = torch.clamp(dot_product, -1.0, 1.0)
    
    # Compute the angle between the vectors
    theta = torch.acos(dot_product)
    
    # Compute the coefficients for the interpolation
    sin_theta = torch.sin(theta)
    if sin_theta == 0:
        # Vectors are parallel, return a linear interpolation
        return u1 + t * (u2 - u1)
    
    s1 = torch.sin((1 - t) * theta) / sin_theta
    s2 = torch.sin(t * theta) / sin_theta
    
    # Perform the interpolation
    return s1 * u1 + s2 * u2

def slerp_multiple(vectors, t_values):
    """
    Perform spherical linear interpolation (Slerp) for multiple vectors.
    
    Args:
    - vectors (torch.Tensor): Tensor of vectors, shape (n, 1024)
    - a_values (torch.Tensor): Tensor of values corresponding to each vector, shape (n,)
    
    Returns:
    - torch.Tensor: Interpolated vector, shape (1024,)
    """
    n = vectors.shape[0]
    
    # Initialize the interpolated vector with the first vector
    interpolated_vector = vectors[0]
    
    # Perform Slerp iteratively
    for i in range(1, n):
        # Perform Slerp between the current interpolated vector and the next vector
        t = t_values[i] / (t_values[i] + t_values[i-1])
        interpolated_vector = slerp(interpolated_vector, vectors[i], t)
    
    return interpolated_vector

# @torch.no_grad
# def get_mask_from_img_sam1(mobilesamv2, yolov8, sam1_image, yolov8_image, original_size, input_size, transform):

#     sam_mask=[]
#     img_area = original_size[0] * original_size[1]

#     obj_results = yolov8(yolov8_image,device=device,retina_masks=False,imgsz=1024,conf=0.25,iou=0.95,verbose=False)
#     input_boxes1 = obj_results[0].boxes.xyxy
#     input_boxes1 = input_boxes1.cpu().numpy()
#     input_boxes1 = transform.apply_boxes(input_boxes1, original_size)
#     input_boxes = torch.from_numpy(input_boxes1).to(device)
    
#     # obj_results = yolov8(yolov8_image,device=device,retina_masks=False,imgsz=512,conf=0.25,iou=0.9,verbose=False)
#     # input_boxes2 = obj_results[0].boxes.xyxy
#     # input_boxes2 = input_boxes2.cpu().numpy()
#     # input_boxes2 = transform.apply_boxes(input_boxes2, original_size)
#     # input_boxes2 = torch.from_numpy(input_boxes2).to(device)

#     # input_boxes = torch.cat((input_boxes1, input_boxes2), dim=0)

#     input_image = mobilesamv2.preprocess(sam1_image)
#     image_embedding = mobilesamv2.image_encoder(input_image)['last_hidden_state']

#     image_embedding=torch.repeat_interleave(image_embedding, 320, dim=0)
#     prompt_embedding=mobilesamv2.prompt_encoder.get_dense_pe()
#     prompt_embedding=torch.repeat_interleave(prompt_embedding, 320, dim=0)
#     for (boxes,) in batch_iterator(320, input_boxes):
#         with torch.no_grad():
#             image_embedding=image_embedding[0:boxes.shape[0],:,:,:]
#             prompt_embedding=prompt_embedding[0:boxes.shape[0],:,:,:]
#             sparse_embeddings, dense_embeddings = mobilesamv2.prompt_encoder(
#                 points=None,
#                 boxes=boxes,
#                 masks=None,)
#             low_res_masks, _ = mobilesamv2.mask_decoder(
#                 image_embeddings=image_embedding,
#                 image_pe=prompt_embedding,
#                 sparse_prompt_embeddings=sparse_embeddings,
#                 dense_prompt_embeddings=dense_embeddings,
#                 multimask_output=False,
#                 simple_type=True,
#             )
#             low_res_masks=mobilesamv2.postprocess_masks(low_res_masks, input_size, original_size)
#             sam_mask_pre = (low_res_masks > mobilesamv2.mask_threshold)
#             for mask in sam_mask_pre:
#                 if mask.sum() / img_area > 0.002:
#                     sam_mask.append(mask.squeeze(1))
#     sam_mask=torch.cat(sam_mask)
#     sorted_sam_mask = sorted(sam_mask, key=(lambda x: x.sum()), reverse=True)
#     keep = mask_nms(sorted_sam_mask)
#     ret_mask = filter(sorted_sam_mask, keep)

#     return ret_mask

# @torch.no_grad
# def get_cog_feats(images):
#     device = 'cuda' if torch.cuda.is_available() else 'cpu'
#     cog_seg_maps = []
#     rev_cog_seg_maps = []
#     inference_state = pe3r.sam2.init_state(images=images.sam2_images, video_height=images.sam2_video_size[0], video_width=images.sam2_video_size[1])
#     mask_num = 0

#     sam1_images = images.sam1_images
#     sam1_images_size = images.sam1_images_size
#     np_images = images.np_images
#     np_images_size = images.np_images_size
    
#     sam1_masks = get_mask_from_img_sam1(pe3r.mobilesamv2, pe3r.yolov8, sam1_images[0], np_images[0], np_images_size[0], sam1_images_size[0], images.sam1_transform)
#     for mask in sam1_masks:
#         _, _, _ = pe3r.sam2.add_new_mask(
#             inference_state=inference_state,
#             frame_idx=0,
#             obj_id=mask_num,
#             mask=mask,
#         )
#         mask_num += 1

#     video_segments = {}  # video_segments contains the per-frame segmentation results
#     for out_frame_idx, out_obj_ids, out_mask_logits in pe3r.sam2.propagate_in_video(inference_state):
#         sam2_masks = (out_mask_logits > 0.0).squeeze(1)

#         video_segments[out_frame_idx] = {
#             out_obj_id: sam2_masks[i].cpu().numpy()
#             for i, out_obj_id in enumerate(out_obj_ids)
#         }

#         if out_frame_idx == 0:
#             continue

#         sam1_masks = get_mask_from_img_sam1(pe3r.mobilesamv2, pe3r.yolov8, sam1_images[out_frame_idx], np_images[out_frame_idx], np_images_size[out_frame_idx], sam1_images_size[out_frame_idx], images.sam1_transform)

#         for sam1_mask in sam1_masks:
#             flg = 1
#             for sam2_mask in sam2_masks:
#                 # print(sam1_mask.shape, sam2_mask.shape)
#                 area1 = sam1_mask.sum()
#                 area2 = sam2_mask.sum()
#                 intersection = (sam1_mask & sam2_mask).sum()
#                 if min(intersection / area1, intersection / area2) > 0.25:
#                     flg = 0
#                     break
#             if flg:
#                 video_segments[out_frame_idx][mask_num] = sam1_mask.cpu().numpy()
#                 mask_num += 1

#     multi_view_clip_feats = torch.zeros((mask_num+1, 1024))
#     multi_view_clip_feats_map = {}
#     multi_view_clip_area_map = {}
#     for now_frame in range(0, len(video_segments), 1):
#         image = np_images[now_frame]

#         seg_img_list = []
#         out_obj_id_list = []
#         out_obj_mask_list = []
#         out_obj_area_list = []
#         # NOTE: background: -1
#         rev_seg_map = -np.ones(image.shape[:2], dtype=np.int64)
#         sorted_dict_items = sorted(video_segments[now_frame].items(), key=lambda x: np.count_nonzero(x[1]), reverse=False)
#         for out_obj_id, mask in sorted_dict_items:
#             if mask.sum() == 0:
#                 continue
#             rev_seg_map[mask] = out_obj_id
#         rev_cog_seg_maps.append(rev_seg_map)

#         seg_map = -np.ones(image.shape[:2], dtype=np.int64)
#         sorted_dict_items = sorted(video_segments[now_frame].items(), key=lambda x: np.count_nonzero(x[1]), reverse=True)
#         for out_obj_id, mask in sorted_dict_items:
#             if mask.sum() == 0:
#                 continue
#             box = np.int32(box_xyxy_to_xywh(mask_to_box(mask)))
            
#             if box[2] == 0 and box[3] == 0:
#                 continue
#             # print(box)
#             seg_img = get_seg_img(mask, box, image)
#             pad_seg_img = cv2.resize(pad_img(seg_img), (256,256))
#             seg_img_list.append(pad_seg_img)
#             seg_map[mask] = out_obj_id
#             out_obj_id_list.append(out_obj_id)
#             out_obj_area_list.append(np.count_nonzero(mask))
#             out_obj_mask_list.append(mask)

#         if len(seg_img_list) == 0:
#             cog_seg_maps.append(seg_map)
#             continue

#         seg_imgs = np.stack(seg_img_list, axis=0) # b,H,W,3
#         seg_imgs = torch.from_numpy(seg_imgs).permute(0,3,1,2) # / 255.0
        
#         inputs = pe3r.siglip_processor(images=seg_imgs, return_tensors="pt")
#         inputs = {key: value.to(device) for key, value in inputs.items()}
        
#         image_features = pe3r.siglip.get_image_features(**inputs)
#         image_features = image_features / image_features.norm(dim=-1, keepdim=True)
#         image_features = image_features.detach().cpu()

#         for i in range(len(out_obj_mask_list)):
#             for j in range(i + 1, len(out_obj_mask_list)):
#                 mask1 = out_obj_mask_list[i]
#                 mask2 = out_obj_mask_list[j]
#                 intersection = np.logical_and(mask1, mask2).sum()
#                 area1 = out_obj_area_list[i]
#                 area2 = out_obj_area_list[j]
#                 if min(intersection / area1, intersection / area2) > 0.025:
#                     conf1 = area1 / (area1 + area2)
#                     # conf2 = area2 / (area1 + area2)
#                     image_features[j] = slerp(image_features[j], image_features[i], conf1)

#         for i, clip_feat in enumerate(image_features):
#             id = out_obj_id_list[i]
#             if id in multi_view_clip_feats_map.keys():
#                 multi_view_clip_feats_map[id].append(clip_feat)
#                 multi_view_clip_area_map[id].append(out_obj_area_list[i])
#             else:
#                 multi_view_clip_feats_map[id] = [clip_feat]
#                 multi_view_clip_area_map[id] = [out_obj_area_list[i]]

#         cog_seg_maps.append(seg_map)
#         del image_features
        
#     for i in range(mask_num):
#         if i in multi_view_clip_feats_map.keys():
#             clip_feats = multi_view_clip_feats_map[i]
#             mask_area = multi_view_clip_area_map[i]
#             multi_view_clip_feats[i] = slerp_multiple(torch.stack(clip_feats), np.stack(mask_area))
#         else:
#             multi_view_clip_feats[i] = torch.zeros((1024))
#     multi_view_clip_feats[mask_num] = torch.zeros((1024))

#     return cog_seg_maps, rev_cog_seg_maps, multi_view_clip_feats

@spaces.GPU(duration=180)
def get_reconstructed_scene(outdir, filelist, schedule, niter, min_conf_thr,
                            as_pointcloud, mask_sky, clean_depth, transparent_cams, cam_size,
                            scenegraph_type, winsize, refid):
    """
    from a list of images, run dust3r inference, global aligner.
    then run get_3D_model_from_scene
    """
    if len(filelist) < 2:
        raise gradio.Error("Please input at least 2 images.")

    images = Images(filelist=filelist, device=device)
    
    # try:
    # cog_seg_maps, rev_cog_seg_maps, cog_feats = get_cog_feats(images)
    # imgs = load_images(images, rev_cog_seg_maps, size=512, verbose=not silent)
    # except Exception as e:
    rev_cog_seg_maps = []
    for tmp_img in images.np_images:
        rev_seg_map = -np.ones(tmp_img.shape[:2], dtype=np.int64)
        rev_cog_seg_maps.append(rev_seg_map)
    cog_seg_maps = rev_cog_seg_maps
    cog_feats = torch.zeros((1, 1024))
    imgs = load_images(images, rev_cog_seg_maps, size=512, verbose=not silent)

    if len(imgs) == 1:
        imgs = [imgs[0], copy.deepcopy(imgs[0])]
        imgs[1]['idx'] = 1

    if scenegraph_type == "swin":
        scenegraph_type = scenegraph_type + "-" + str(winsize)
    elif scenegraph_type == "oneref":
        scenegraph_type = scenegraph_type + "-" + str(refid)

    pairs = make_pairs(imgs, scene_graph=scenegraph_type, prefilter=None, symmetrize=True)
    output = inference(pairs, pe3r.mast3r, device, batch_size=1, verbose=not silent)
    mode = GlobalAlignerMode.PointCloudOptimizer if len(imgs) > 2 else GlobalAlignerMode.PairViewer
    scene_1 = global_aligner(output, cog_seg_maps, rev_cog_seg_maps, cog_feats, device=device, mode=mode, verbose=not silent)
    lr = 0.01
    # if mode == GlobalAlignerMode.PointCloudOptimizer:
    loss = scene_1.compute_global_alignment(tune_flg=True, init='mst', niter=niter, schedule=schedule, lr=lr)

    try:
        ImgNorm = tvf.Compose([tvf.ToTensor(), tvf.Normalize((0.5, 0.5, 0.5), (0.5, 0.5, 0.5))])
        for i in range(len(imgs)):
            # print(imgs[i]['img'].shape, scene.imgs[i].shape, ImgNorm(scene.imgs[i])[None])
            imgs[i]['img'] = ImgNorm(scene_1.imgs[i])[None]
        pairs = make_pairs(imgs, scene_graph=scenegraph_type, prefilter=None, symmetrize=True)
        output = inference(pairs, pe3r.mast3r, device, batch_size=1, verbose=not silent)
        mode = GlobalAlignerMode.PointCloudOptimizer if len(imgs) > 2 else GlobalAlignerMode.PairViewer
        scene = global_aligner(output, cog_seg_maps, rev_cog_seg_maps, cog_feats, device=device, mode=mode, verbose=not silent)
        ori_imgs = scene.ori_imgs
        lr = 0.01
        # if mode == GlobalAlignerMode.PointCloudOptimizer:
        loss = scene.compute_global_alignment(tune_flg=False, init='mst', niter=niter, schedule=schedule, lr=lr)
    except Exception as e:
        scene = scene_1
        scene.imgs = ori_imgs
        scene.ori_imgs = ori_imgs
        print(e)

    outfile = get_3D_model_from_scene(outdir, scene, min_conf_thr, as_pointcloud, mask_sky,
                                      clean_depth, transparent_cams, cam_size)
    torch.cuda.empty_cache()
    # also return rgb, depth and confidence imgs
    # depth is normalized with the max value for all images
    # we apply the jet colormap on the confidence maps
    # rgbimg = scene.imgs
    # depths = to_numpy(scene.get_depthmaps())
    # confs = to_numpy([c for c in scene.im_conf])
    # # confs = to_numpy([c for c in scene.conf_2])
    # cmap = pl.get_cmap('jet')
    # depths_max = max([d.max() for d in depths])
    # depths = [d / depths_max for d in depths]
    # confs_max = max([d.max() for d in confs])
    # confs = [cmap(d / confs_max) for d in confs]

    # imgs = []
    # for i in range(len(rgbimg)):
    #     imgs.append(rgbimg[i])
    #     imgs.append(rgb(depths[i]))
    #     imgs.append(rgb(confs[i]))

    return scene, outfile #, imgs

# @spaces.GPU(duration=180)
# def get_3D_object_from_scene(outdir, text, threshold, scene, min_conf_thr, as_pointcloud, 
#                  mask_sky, clean_depth, transparent_cams, cam_size):
    
#     texts = [text]
#     inputs = pe3r.siglip_tokenizer(text=texts, padding="max_length", return_tensors="pt")
#     inputs = {key: value.to(device) for key, value in inputs.items()}
#     with torch.no_grad():
#         text_feats =pe3r.siglip.get_text_features(**inputs)
#         text_feats = text_feats / text_feats.norm(dim=-1, keepdim=True)
#     scene.render_image(text_feats, threshold)
#     scene.ori_imgs = scene.rendered_imgs
#     outfile = get_3D_model_from_scene(outdir, scene, min_conf_thr, as_pointcloud, mask_sky,
#                                       clean_depth, transparent_cams, cam_size)
#     return outfile


def set_scenegraph_options(inputfiles, winsize, refid, scenegraph_type):
    num_files = len(inputfiles) if inputfiles is not None else 1
    max_winsize = max(1, math.ceil((num_files - 1) / 2))
    if scenegraph_type == "swin":
        winsize = gradio.Slider(label="Scene Graph: Window Size", value=max_winsize,
                                minimum=1, maximum=max_winsize, step=1, visible=True)
        refid = gradio.Slider(label="Scene Graph: Id", value=0, minimum=0,
                              maximum=num_files - 1, step=1, visible=False)
    elif scenegraph_type == "oneref":
        winsize = gradio.Slider(label="Scene Graph: Window Size", value=max_winsize,
                                minimum=1, maximum=max_winsize, step=1, visible=False)
        refid = gradio.Slider(label="Scene Graph: Id", value=0, minimum=0,
                              maximum=num_files - 1, step=1, visible=True)
    else:
        winsize = gradio.Slider(label="Scene Graph: Window Size", value=max_winsize,
                                minimum=1, maximum=max_winsize, step=1, visible=False)
        refid = gradio.Slider(label="Scene Graph: Id", value=0, minimum=0,
                              maximum=num_files - 1, step=1, visible=False)
    return winsize, refid


with tempfile.TemporaryDirectory(suffix='pe3r_gradio_demo') as tmpdirname:
    recon_fun = functools.partial(get_reconstructed_scene, tmpdirname)
    # model_from_scene_fun = functools.partial(get_3D_model_from_scene, tmpdirname)
    # get_3D_object_from_scene_fun = functools.partial(get_3D_object_from_scene, tmpdirname)

    with gradio.Blocks(css=""".gradio-container {margin: 0 !important; min-width: 100%};""", title="PE3R Demo") as demo:
        # scene state is save so that you can change conf_thr, cam_size... without rerunning the inference
        scene = gradio.State(None)
        gradio.HTML('<h2 style="text-align: center;">PE3R Demo</h2>')
        with gradio.Column():
            inputfiles = gradio.File(file_count="multiple")
            with gradio.Row():
                schedule = gradio.Dropdown(["linear", "cosine"],
                                            value='linear', label="schedule", info="For global alignment!",
                                            visible=False)
                niter = gradio.Number(value=300, precision=0, minimum=0, maximum=5000,
                                        label="num_iterations", info="For global alignment!",
                                        visible=False)
                scenegraph_type = gradio.Dropdown([("complete: all possible image pairs", "complete"),
                                                    ("swin: sliding window", "swin"),
                                                    ("oneref: match one image with all", "oneref")],
                                                    value='complete', label="Scenegraph",
                                                    info="Define how to make pairs",
                                                    interactive=True,
                                                    visible=False)
                winsize = gradio.Slider(label="Scene Graph: Window Size", value=1,
                                        minimum=1, maximum=1, step=1, visible=False)
                refid = gradio.Slider(label="Scene Graph: Id", value=0, minimum=0, maximum=0, step=1, visible=False)

            run_btn = gradio.Button("Reconstruct")

            with gradio.Row():
                # adjust the confidence threshold
                min_conf_thr = gradio.Slider(label="min_conf_thr", value=3.0, minimum=1.0, maximum=20, step=0.1, visible=False)
                # adjust the camera size in the output pointcloud
                cam_size = gradio.Slider(label="cam_size", value=0.05, minimum=0.001, maximum=0.1, step=0.001, visible=False)
            with gradio.Row():
                as_pointcloud = gradio.Checkbox(value=True, label="As pointcloud", visible=False)
                # two post process implemented
                mask_sky = gradio.Checkbox(value=False, label="Mask sky", visible=False)
                clean_depth = gradio.Checkbox(value=True, label="Clean-up depthmaps", visible=False)
                transparent_cams = gradio.Checkbox(value=True, label="Transparent cameras", visible=False)

            # with gradio.Row():
            #     text_input = gradio.Textbox(label="Query Text")
            #     threshold = gradio.Slider(label="Threshold", value=0.85, minimum=0.0, maximum=1.0, step=0.01)

            # find_btn = gradio.Button("Find")

            outmodel = gradio.Model3D()
            # outgallery = gradio.Gallery(label='rgb,depth,confidence', columns=3, height="100%",
            #                             visible=False)

            # events
            scenegraph_type.change(set_scenegraph_options,
                                    inputs=[inputfiles, winsize, refid, scenegraph_type],
                                    outputs=[winsize, refid])
            inputfiles.change(set_scenegraph_options,
                                inputs=[inputfiles, winsize, refid, scenegraph_type],
                                outputs=[winsize, refid])
            run_btn.click(fn=recon_fun,
                            inputs=[inputfiles, schedule, niter, min_conf_thr, as_pointcloud,
                                    mask_sky, clean_depth, transparent_cams, cam_size,
                                    scenegraph_type, winsize, refid],
                            outputs=[scene, outmodel]) # , outgallery
            # min_conf_thr.release(fn=model_from_scene_fun,
            #                         inputs=[scene, min_conf_thr, as_pointcloud, mask_sky,
            #                                 clean_depth, transparent_cams, cam_size],
            #                         outputs=outmodel)
            # cam_size.change(fn=model_from_scene_fun,
            #                 inputs=[scene, min_conf_thr, as_pointcloud, mask_sky,
            #                         clean_depth, transparent_cams, cam_size],
            #                 outputs=outmodel)
            # as_pointcloud.change(fn=model_from_scene_fun,
            #                         inputs=[scene, min_conf_thr, as_pointcloud, mask_sky,
            #                                 clean_depth, transparent_cams, cam_size],
            #                         outputs=outmodel)
            # mask_sky.change(fn=model_from_scene_fun,
            #                 inputs=[scene, min_conf_thr, as_pointcloud, mask_sky,
            #                         clean_depth, transparent_cams, cam_size],
            #                 outputs=outmodel)
            # clean_depth.change(fn=model_from_scene_fun,
            #                     inputs=[scene, min_conf_thr, as_pointcloud, mask_sky,
            #                             clean_depth, transparent_cams, cam_size],
            #                     outputs=outmodel)
            # transparent_cams.change(model_from_scene_fun,
            #                         inputs=[scene, min_conf_thr, as_pointcloud, mask_sky,
            #                                 clean_depth, transparent_cams, cam_size],
            #                         outputs=outmodel)
            # find_btn.click(fn=get_3D_object_from_scene_fun,
            #                     inputs=[text_input, threshold, scene, min_conf_thr, as_pointcloud, mask_sky,
            #                             clean_depth, transparent_cams, cam_size],
            #                 outputs=outmodel)
    demo.launch(show_error=True, share=None, server_name=None, server_port=None)