init v3det

README.md

@@ -1,3 +1,143 @@
----
-license: cc-by-4.0
----
+<p>
+<div align="center">
+    
+# <img src="images/v3det_icon.jpg" height="25"> V3Det: Vast Vocabulary Visual Detection Dataset
+
+<div>
+    <a href='https://myownskyw7.github.io/' target='_blank'>Jiaqi Wang</a>*,
+    <a href='https://panzhang0212.github.io/' target='_blank'>Pan Zhang</a>*,
+    Tao Chu*,
+    Yuhang Cao*, </br>
+    Yujie Zhou,
+    <a href='https://wutong16.github.io/' target='_blank'>Tong Wu</a>,
+    Bin Wang,
+    Conghui He,
+    <a href='http://dahua.site/' target='_blank'>Dahua Lin</a></br>
+    (* equal contribution)</br>
+    <strong>Accepted to ICCV 2023 (Oral)</strong>
+</div>
+</p>
+<p>
+<div>
+    <strong>
+        <a href='https://arxiv.org/pdf/2304.03752.pdf' target='_blank'>Paper</a>, 
+        <a href='https://v3det.openxlab.org.cn/' target='_blank'>Dataset</a></br>
+    </strong>
+</div>
+</div>
+</p>
+
+<p align="left">
+    <img width=960 src="images/introduction.jpg"/>
+</p>
+
+## Codebase
+### Object Detection
+- [x] mmdetection: https://github.com/V3Det/mmdetection-V3Det/tree/main/configs/v3det
+- [x] Detectron2： https://github.com/V3Det/Detectron2-V3Det
+
+### Open Vocabulary Detection (OVD)
+- [x] Detectron2： https://github.com/V3Det/Detectron2-V3Det
+
+## Data Format
+
+The data includes a training set, a validation set, comprising 13,204 categories. The training set consists of 183,354 images, while the validation set has 29,821 images. The data organization is:
+```
+V3Det/
+    images/
+        <category_node>/
+            |────<image_name>.png
+            ...
+        ...
+    annotations/
+        |────v3det_2023_v1_category_tree.json       # Category tree
+        |────category_name_13204_v3det_2023_v1.txt  # Category name
+        |────v3det_2023_v1_train.json               # Train set
+        |────v3det_2023_v1_val.json                 # Validation set
+```
+
+## Annotation Files
+
+### Train/Val
+The annotation files are provided in dictionary format and contain the keywords "images," "categories," and "annotations."
+
+- images : store a list containing image information, where each element is a dictionary representing an image.
+```
+    file_name            # The relative image path, eg. images/n07745046/21_371_29405651261_633d076053_c.jpg.
+    height               # The height of the image
+    width                # The width of the image
+    id                   # Unique identifier of the image.
+```
+
+- categories : store a list containing category information, where each element is a dictionary representing a category.
+```
+    name                 # English name of the category.
+    name_zh              # Chinese name of the category.
+    cat_info             # The format for the description information of categories is a list.
+    cat_info_gpt         # The format for the description information of categories generated by ChatGPT is a list.
+    novel                # For open-vocabulary detection, indicate whether the current category belongs to the 'novel' category.
+    id                   # Unique identifier of the category.
+```
+
+- annotations : store a list containing annotation information, where each element is a dictionary representing a bounding box annotation.
+```
+    image_id             # The unique identifier of the image where the bounding box is located.
+    category_id          # The unique identifier of the category corresponding to the bounding box.
+    bbox                 # The coordinates of the bounding box, in the format [x, y, w, h], representing the top-left corner coordinates and the width and height of the box.
+    iscrowd              # Whether the bounding box is a crowd box.
+    area                 # The area of the bounding box
+```
+
+### Category Tree
+- The category tree stores information about dataset category mappings and relationships in dictionary format.
+```
+    categoryid2treeid    # Unique identifier of node in the category tree corresponding to the category identifier in dataset
+    id2name              # English name corresponding to each node in the category tree
+    id2name_zh           # Chinese name corresponding to each node in the category tree
+    id2desc              # English description corresponding to each node in the category tree
+    id2desc_zh           # Chinese description corresponding to each node in the category tree
+    id2synonym_list      # List of synonyms corresponding to each node in the category tree
+    id2center_synonym    # Center synonym corresponding to each node in the category tree
+    father2child         # All direct child categories corresponding to each node in the category tree
+    child2father         # All direct parent categories corresponding to each node in the category tree
+    ancestor2descendant  # All descendant nodes corresponding to each node in the category tree
+    descendant2ancestor  # All ancestor nodes corresponding to each node in the category tree
+```
+
+## Image Download
+
+- Run the command to crawl the images. By default, the images will be stored in the './V3Det/' directory.
+```
+python v3det_image_download.py
+```
+- If you want to change the storage location, you can specify the desired folder by adding the option '--output_folder' when executing the script.
+```
+python v3det_image_download.py --output_folder our_folder
+```
+
+## Category Tree Visualization
+
+- Run the command and then select dataset path `path/to/V3Det` to visualize the category tree.
+```
+python v3det_visualize_tree.py
+```
+
+Please refer to the [TreeUI Operation Guide](VisualTree.md) for more information.
+
+## License:
+- **V3Det Images**: Around 90% images in V3Det were selected from the [Bamboo Dataset](https://github.com/ZhangYuanhan-AI/Bamboo), sourced from the Flickr website. The remaining 10% were directly crawled from the Flickr. **We do not own the copyright of the images.** Use of the images must abide by the [Flickr Terms of Use](https://www.flickr.com/creativecommons/). We only provide lists of image URLs without redistribution. 
+
+- **V3Det Annotations**: The V3Det annotations, the category relationship tree, and related tools are licensed under a [Creative Commons Attribution 4.0 License](https://creativecommons.org/licenses/by/4.0/) (allow commercial use).
+
+
+## Citation
+
+```bibtex
+@inproceedings{wang2023v3det,
+      title = {V3Det: Vast Vocabulary Visual Detection Dataset}, 
+      author = {Wang, Jiaqi and Zhang, Pan and Chu, Tao and Cao, Yuhang and Zhou, Yujie and Wu, Tong and Wang, Bin and He, Conghui and Lin, Dahua},
+      booktitle = {The IEEE International Conference on Computer Vision (ICCV)},
+      month = {October},
+      year = {2023}
+}
+```

VisualTree.md

@@ -0,0 +1,21 @@
+# TreeUI Operation Guide
+
+## Data and Environment Setup
+
+Use `v3det_image_download.py` to download the dataset images into `images` in the `/path/to/V3Det` directory. 
+Download `v3det_2023_v1_category_tree.json` into the `annotations` directory.
+
+Install the required package: `pip install pyqt5`
+
+## Visualization Tool and Instructions
+After running `python v3det_visualize_tree.py`, a dialog box will pop up. Select the downloaded dataset folder `/path/to/V3Det`. Following this, the visualization tool interface will appear:
+![view.png](images/visual_tree.png)
+
+Description of functions and operations:\
+① Search box: Enter English or Chinese text for searching. The results will be displayed in ⑤.\
+② Reset button: This is used to reset the search box (①) and the search display area (⑤).\
+③ Category tree display area: Here you can expand the category tree, select categories, and view the structure and information of the current category in ④, ⑥, and ⑦.\
+④ Category relationship display area: This shows the relationships of the categories selected in ③/⑤.\
+⑤ Category search area: Displays the categories searched.\
+⑥ Category information area: Shows the information of the selected category, including English category name, Chinese category name, English category description, and Chinese category description.\
+⑦ Image area: Displays related images of the selected category, with a maximum of 16 images displayed at a time.

v3det_image_download.py

@@ -0,0 +1,126 @@
+import io
+import argparse
+import concurrent.futures
+import json
+import os
+import time
+import urllib.error
+import urllib.request
+
+from tqdm import tqdm
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--output_folder", type=str, default="V3Det")
+parser.add_argument("--max_retries", type=int, default=3)
+parser.add_argument("--max_workers", type=int, default=16)
+args = parser.parse_args()
+headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36'}
+
+
+def cache(response):
+    f = io.BytesIO()
+    block_sz = 8192
+    while True:
+        buffer = response.read(block_sz)
+        if not buffer:
+            break
+        f.write(buffer)
+    return f
+
+def download_image(url, path, timeout):
+    result = {
+        "status": "",
+        "url": url,
+        "path": path,
+    }
+    cnt = 0
+    while True:
+        try:
+            response = urllib.request.urlopen(urllib.request.Request(url=url, headers=headers), timeout=timeout)
+            image_path = os.path.join(args.output_folder, path)
+            os.makedirs(os.path.dirname(image_path), exist_ok=True)
+            f = cache(response)
+            with open(image_path, "wb") as fp:
+                fp.write(f.getvalue())
+            result["status"] = "success"
+        except Exception as e:
+            if not isinstance(e, urllib.error.HTTPError):
+                cnt += 1
+                if cnt <= args.max_retries:
+                    continue
+            if isinstance(e, urllib.error.HTTPError):
+                result["status"] = "expired"
+            else:
+                result["status"] = "timeout"
+        break
+    return result
+
+
+def main():
+    start = time.time()
+    if os.path.exists(args.output_folder) and os.listdir(args.output_folder):
+        try:
+            c = input(
+                f"'{args.output_folder}' already exists and is not an empty directory, continue? (y/n) "
+            )
+            if c.lower() not in ["y", "yes"]:
+                exit(0)
+        except KeyboardInterrupt:
+            exit(0)
+    if not os.path.exists(args.output_folder):
+        os.makedirs(args.output_folder)
+    image_folder_path = os.path.join(args.output_folder, "images")
+    record_path = os.path.join(args.output_folder, "records.json")
+    record = {'success': [], 'expired': [], 'timeout': []}
+    if os.path.isfile(record_path):
+        try:
+            with open(record_path, encoding="utf8") as f:
+                record['success'] = json.load(f)['success']
+        except:
+            pass
+    if not os.path.exists(image_folder_path):
+        os.makedirs(image_folder_path)
+
+    list_url = 'https://raw.githubusercontent.com/V3Det/v3det_resource/main/resource/download_list.txt'
+    response = urllib.request.urlopen(urllib.request.Request(url=list_url, headers=headers), timeout=10)
+    url_list = [url for url in response.read().decode('utf-8').split('\n') if len(url) > 0]
+    image2url = {}
+    for url in url_list:
+        response = urllib.request.urlopen(urllib.request.Request(url=url, headers=headers), timeout=10)
+        image2url.update(eval(response.read().decode('utf-8')))
+
+    data = []
+    rec_suc = set(record['success'])
+    for image, url in image2url.items():
+        if image not in rec_suc:
+            data.append((url, image))
+    with tqdm(total=len(data)) as pbar:
+        with concurrent.futures.ThreadPoolExecutor(max_workers=args.max_workers) as executor:
+            # Submit up to `chunk_size` tasks at a time to avoid too many pending tasks.
+            chunk_size = min(5000, args.max_workers * 500)
+            for i in range(0, len(data), chunk_size):
+                futures = [
+                    executor.submit(download_image, url, path, 10)
+                    for url, path in data[i: i + chunk_size]
+                ]
+                for future in concurrent.futures.as_completed(futures):
+                    r = future.result()
+                    record[r["status"]].append(r["path"])
+                    pbar.update(1)
+                with open(record_path, "w", encoding="utf8") as f:
+                    json.dump(record, f, indent=2)
+
+    end = time.time()
+    print(f"consuming time {end - start:.1f} sec")
+    print(f"{len(record['success'])} images downloaded.")
+    print(f"{len(record['timeout'])} urls failed due to request timeout.")
+    print(f"{len(record['expired'])} urls failed due to url expiration.")
+    if len(record['success']) == len(image2url):
+        os.remove(record_path)
+        print('All images have been downloaded!')
+    else:
+        print('Please run this file again to download failed image!')
+
+
+if __name__ == "__main__":
+    main()

v3det_visualize_tree.py

@@ -0,0 +1,316 @@
+import os
+import sys
+import json
+import tkinter
+
+from tkinter import filedialog
+from PyQt5 import QtCore, QtGui, QtWidgets
+from PyQt5.QtWidgets import *
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+import functools
+
+W, H = 800, 800
+
+qss = '/*\nMaterial Dark Style Sheet for QT Applications\nAuthor: Jaime A. Quiroga P.\nInspired on https://github.com/jxfwinter/qt-material-stylesheet\nCompany: GTRONICK\nLast updated: 04/12/2018, 15:00.\nAvailable at: https://github.com/GTRONICK/QSS/blob/master/MaterialDark.qss\n*/\nQMainWindow {\n\tbackground-color:#1e1d23;\n\tborder-radius:15px;\n\tfont-family:Segoe UI;\n}\nQDialog {\n\tbackground-color:#1e1d23;\n}\nQColorDialog {\n\tbackground-color:#1e1d23;\n\t\n}\nQTextEdit {\n\tbackground-color:#1e1d23;\n\tcolor: #a9b7c6;\n}\nQPlainTextEdit {\n\tselection-background-color:#007b50;\n\tbackground-color:#1e1d23;\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: transparent;\n\tborder-width: 1px;\n\tcolor: #a9b7c6;\n}\nQPushButton{\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: transparent;\n\tborder-width: 1px;\n\tborder-style: solid;\n\tcolor: #a9b7c6;\n\tpadding: 2px;\n\tbackground-color: #1e1d23;\n\tfont-size: 14px;\n}\nQPushButton::default{\n\tborder-style: inset;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: #04b97f;\n\tborder-width: 1px;\n\tcolor: #a9b7c6;\n\tpadding: 2px;\n\tbackground-color: #1e1d23;\n}\nQToolButton {\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: #04b97f;\n\tborder-bottom-width: 1px;\n\tborder-style: solid;\n\tcolor: #a9b7c6;\n\tpadding: 2px;\n\tbackground-color: #1e1d23;\n}\nQToolButton:hover{\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: #37efba;\n\tborder-bottom-width: 2px;\n\tborder-style: solid;\n\tcolor: #FFFFFF;\n\tpadding-bottom: 1px;\n\tbackground-color: #1e1d23;\n}\nQPushButton:hover{\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: #37efba;\n\tborder-bottom-width: 1px;\n\tborder-style: solid;\n\tcolor: #FFFFFF;\n\tpadding-bottom: 2px;\n\tbackground-color: #1e1d23;\n}\nQPushButton:pressed{\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: #37efba;\n\tborder-bottom-width: 2px;\n\tborder-style: solid;\n\tcolor: #37efba;\n\tpadding-bottom: 1px;\n\tbackground-color: #1e1d23;\n}\nQPushButton:disabled{\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: #808086;\n\tborder-bottom-width: 2px;\n\tborder-style: solid;\n\tcolor: #808086;\n\tpadding-bottom: 1px;\n\tbackground-color: #1e1d23;\n}\nQLineEdit {\n\tborder-width: 1px; border-radius: 4px;\n\tborder-color: rgb(58, 58, 58);\n\tborder-style: inset;\n\tpadding: 0 8px;\n\tcolor: #a9b7c6;\n\tbackground:#1e1d23;\n\tselection-background-color:#007b50;\n\tselection-color: #FFFFFF;\n}\nQLabel {\n\tcolor: #a9b7c6;\n\tfont-size: 14px;\n}\nQLCDNumber {\n\tcolor: #37e6b4;\n}\nQProgressBar {\n\ttext-align: center;\n\tcolor: rgb(240, 240, 240);\n\tborder-width: 1px; \n\tborder-radius: 10px;\n\tborder-color: rgb(58, 58, 58);\n\tborder-style: inset;\n\tbackground-color:#1e1d23;\n}\nQProgressBar::chunk {\n\tbackground-color: #04b97f;\n\tborder-radius: 5px;\n}\nQMenuBar {\n\tbackground-color: #1e1d23;\n}\nQMenuBar::item {\n\tcolor: #a9b7c6;\n  \tspacing: 3px;\n  \tpadding: 1px 4px;\n  \tbackground: #1e1d23;\n}\n\nQMenuBar::item:selected {\n  \tbackground:#1e1d23;\n\tcolor: #FFFFFF;\n}\nQMenu::item:selected {\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: #04b97f;\n\tborder-bottom-color: transparent;\n\tborder-left-width: 2px;\n\tcolor: #FFFFFF;\n\tpadding-left:15px;\n\tpadding-top:4px;\n\tpadding-bottom:4px;\n\tpadding-right:7px;\n\tbackground-color: #1e1d23;\n}\nQMenu::item {\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: transparent;\n\tborder-bottom-width: 1px;\n\tborder-style: solid;\n\tcolor: #a9b7c6;\n\tpadding-left:17px;\n\tpadding-top:4px;\n\tpadding-bottom:4px;\n\tpadding-right:7px;\n\tbackground-color: #1e1d23;\n}\nQMenu{\n\tbackground-color:#1e1d23;\n}\nQTabWidget {\n\tcolor:rgb(0,0,0);\n\tbackground-color:#1e1d23;\n}\nQTabWidget::pane {\n\t\tborder-color: rgb(77,77,77);\n\t\tbackground-color:#1e1d23;\n\t\tborder-style: solid;\n\t\tborder-width: 1px;\n    \tborder-radius: 6px;\n}\nQTabBar::tab {\n\tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: transparent;\n\tborder-bottom-width: 1px;\n\tborder-style: solid;\n\tcolor: #808086;\n\tpadding: 3px;\n\tmargin-left:3px;\n\tbackground-color: #1e1d23;\n}\nQTabBar::tab:selected, QTabBar::tab:last:selected, QTabBar::tab:hover {\n  \tborder-style: solid;\n\tborder-top-color: transparent;\n\tborder-right-color: transparent;\n\tborder-left-color: transparent;\n\tborder-bottom-color: #04b97f;\n\tborder-bottom-width: 2px;\n\tborder-style: solid;\n\tcolor: #FFFFFF;\n\tpadding-left: 3px;\n\tpadding-bottom: 2px;\n\tmargin-left:3px;\n\tbackground-color: #1e1d23;\n}\n\nQCheckBox {\n\tcolor: #a9b7c6;\n\tpadding: 2px;\n}\nQCheckBox:disabled {\n\tcolor: #808086;\n\tpadding: 2px;\n}\n\nQCheckBox:hover {\n\tborder-radius:4px;\n\tborder-style:solid;\n\tpadding-left: 1px;\n\tpadding-right: 1px;\n\tpadding-bottom: 1px;\n\tpadding-top: 1px;\n\tborder-width:1px;\n\tborder-color: rgb(87, 97, 106);\n\tbackground-color:#1e1d23;\n}\nQCheckBox::indicator:checked {\n\n\theight: 10px;\n\twidth: 10px;\n\tborder-style:solid;\n\tborder-width: 1px;\n\tborder-color: #04b97f;\n\tcolor: #a9b7c6;\n\tbackground-color: #04b97f;\n}\nQCheckBox::indicator:unchecked {\n\n\theight: 10px;\n\twidth: 10px;\n\tborder-style:solid;\n\tborder-width: 1px;\n\tborder-color: #04b97f;\n\tcolor: #a9b7c6;\n\tbackground-color: transparent;\n}\nQRadioButton {\n\tcolor: #a9b7c6;\n\tbackground-color: #1e1d23;\n\tpadding: 1px;\n}\nQRadioButton::indicator:checked {\n\theight: 10px;\n\twidth: 10px;\n\tborder-style:solid;\n\tborder-radius:5px;\n\tborder-width: 1px;\n\tborder-color: #04b97f;\n\tcolor: #a9b7c6;\n\tbackground-color: #04b97f;\n}\nQRadioButton::indicator:!checked {\n\theight: 10px;\n\twidth: 10px;\n\tborder-style:solid;\n\tborder-radius:5px;\n\tborder-width: 1px;\n\tborder-color: #04b97f;\n\tcolor: #a9b7c6;\n\tbackground-color: transparent;\n}\nQStatusBar {\n\tcolor:#027f7f;\n}\nQSpinBox {\n\tcolor: #a9b7c6;\t\n\tbackground-color: #1e1d23;\n}\nQDoubleSpinBox {\n\tcolor: #a9b7c6;\t\n\tbackground-color: #1e1d23;\n}\nQTimeEdit {\n\tcolor: #a9b7c6;\t\n\tbackground-color: #1e1d23;\n}\nQDateTimeEdit {\n\tcolor: #a9b7c6;\t\n\tbackground-color: #1e1d23;\n}\nQDateEdit {\n\tcolor: #a9b7c6;\t\n\tbackground-color: #1e1d23;\n}\nQComboBox {\n\tcolor: #a9b7c6;\t\n\tbackground: #1e1d23;\n}\nQComboBox:editable {\n\tbackground: #1e1d23;\n\tcolor: #a9b7c6;\n\tselection-background-color: #1e1d23;\n}\nQComboBox QAbstractItemView {\n\tcolor: #a9b7c6;\t\n\tbackground: #1e1d23;\n\tselection-color: #FFFFFF;\n\tselection-background-color: #1e1d23;\n}\nQComboBox:!editable:on, QComboBox::drop-down:editable:on {\n\tcolor: #a9b7c6;\t\n\tbackground: #1e1d23;\n}\nQFontComboBox {\n\tcolor: #a9b7c6;\t\n\tbackground-color: #1e1d23;\n}\nQToolBox {\n\tcolor: #a9b7c6;\n\tbackground-color: #1e1d23;\n}\nQToolBox::tab {\n\tcolor: #a9b7c6;\n\tbackground-color: #1e1d23;\n}\nQToolBox::tab:selected {\n\tcolor: #FFFFFF;\n\tbackground-color: #1e1d23;\n}\nQScrollArea {\n\tcolor: #FFFFFF;\n\tbackground-color: #1e1d23;\n}\nQSlider::groove:horizontal {\n\theight: 5px;\n\tbackground: #04b97f;\n}\nQSlider::groove:vertical {\n\twidth: 5px;\n\tbackground: #04b97f;\n}\nQSlider::handle:horizontal {\n\tbackground: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #b4b4b4, stop:1 #8f8f8f);\n\tborder: 0px solid #5c5c5c;\n\twidth: 14px;\n\tmargin: -5px 0;\n\tborder-radius: 7px;\n}\nQSlider::handle:vertical {\n\tbackground: qlineargradient(x1:1, y1:1, x2:0, y2:0, stop:0 #b4b4b4, stop:1 #8f8f8f);\n\tborder: 0px solid #5c5c5c;\n\theight: 14px;\n\tmargin: 0 -5px;\n\tborder-radius: 7px;\n}\nQSlider::add-page:horizontal {\n    background: white;\n}\nQSlider::add-page:vertical {\n    background: white;\n}\nQSlider::sub-page:horizontal {\n    background: #04b97f;\n}\nQSlider::sub-page:vertical {\n    background: #04b97f;\n}\n'
+
+class MainWindow(QtWidgets.QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.load_tree()
+        self.init_widgets()
+        self.init_tree()
+
+    def load_tree(self):
+        self.process_log = []
+        root = tkinter.Tk()
+        root.withdraw()
+        print('Please select the root directory of the V3Det dataset!')
+        self.root = filedialog.askdirectory()
+        self.tree = {}
+        self.visual_cat_list = []
+        try:
+            with open(os.path.join(self.root, 'annotations', 'v3det_2023_v1_category_tree.json'), encoding='utf-8') as f:
+                self.tree = json.load(f)
+            self.im_root = os.path.join(self.root, 'images')
+            self.visual_cat_list = os.listdir(self.im_root)
+            print('Images and category_tree.json are all loaded!')
+        except:
+            if len(self.tree) == 0:
+                print('Error: There is no tree.json!')
+            else:
+                if len(self.visual_cat_list) == 0:
+                    print('Warning: There is no images!')
+            print('Please make sure the structure of files, and select the root directory:')
+            print('| -- V3Det(root)')
+            print('    | -- images')
+            print('        | -- n00001234')
+            print('            | -- ...jpg')
+            print('    | -- annotations')
+            print('        | -- v3det_2023_v1_category_tree.json')
+            if len(self.tree) == 0:
+                exit()
+
+    def init_widgets(self):
+        # main layout
+        central_widget = QtWidgets.QWidget()
+        main_layout = QtWidgets.QHBoxLayout()
+        central_widget.setLayout(main_layout)
+
+        left_layout = QtWidgets.QVBoxLayout()
+        search_box = QtWidgets.QHBoxLayout()
+        self.search_text = QLineEdit()
+        self.search_text.textEdited.connect(self.text_change)
+        self.search_button = QPushButton("Search")
+        self.search_button.pressed.connect(self.search)
+        search_box.addWidget(self.search_text)
+        search_box.addWidget(self.search_button)
+        left_layout.addLayout(search_box)
+
+        self.visual_tree = QTreeWidget()
+        self.visual_tree.setColumnCount(2)
+        self.visual_tree.setHeaderLabels(['name_en', 'name_zh'])
+        left_layout.addWidget(self.visual_tree)
+
+        node_lay = QtWidgets.QHBoxLayout()
+        self.current_node = QTreeWidget()
+        self.current_node.setColumnCount(2)
+        self.current_node.setHeaderLabels(['name_en', 'name_zh'])
+        node_lay.addWidget(self.current_node)
+
+        self.search_list = QTreeWidget()
+        self.search_list.setColumnCount(2)
+        self.search_list.setHeaderLabels(['name_en', 'name_zh/num'])
+        node_lay.addWidget(self.search_list)
+        left_layout.addLayout(node_lay)
+
+        main_layout.addLayout(left_layout)
+
+        right_layout = QtWidgets.QVBoxLayout()
+        info_layout = QtWidgets.QVBoxLayout()
+        self.class_id = QLabel("class_id")
+        self.class_name_en = QLabel("class_name_en")
+        self.class_desc_en = QLabel("class_desc_en")
+        self.class_name_zh = QLabel("class_name_zh")
+        self.class_desc_zh = QLabel("class_desc_zh")
+        self.class_id.setTextInteractionFlags(Qt.TextSelectableByMouse)
+        self.class_name_en.setTextInteractionFlags(Qt.TextSelectableByMouse)
+        self.class_name_en.setWordWrap(True)
+        self.class_desc_en.setTextInteractionFlags(Qt.TextSelectableByMouse)
+        self.class_desc_en.setWordWrap(True)
+        self.class_name_zh.setTextInteractionFlags(Qt.TextSelectableByMouse)
+        self.class_name_zh.setWordWrap(True)
+        self.class_desc_zh.setTextInteractionFlags(Qt.TextSelectableByMouse)
+        self.class_desc_zh.setWordWrap(True)
+        self.class_name_en.setFixedWidth(W)
+        self.class_desc_en.setFixedWidth(W)
+        self.class_name_zh.setFixedWidth(W)
+        self.class_desc_zh.setFixedWidth(W)
+        info_layout.addWidget(self.class_id, QtCore.Qt.AlignLeft)
+        info_layout.addWidget(self.class_name_en, QtCore.Qt.AlignLeft)
+        info_layout.addWidget(self.class_name_zh, QtCore.Qt.AlignLeft)
+        info_layout.addWidget(self.class_desc_en, QtCore.Qt.AlignLeft)
+        info_layout.addWidget(self.class_desc_zh, QtCore.Qt.AlignLeft)
+        right_layout.addLayout(info_layout)
+
+        self.class_images = []
+        num_items = 4
+        for num_im_i in range(num_items):
+            img_layout = QtWidgets.QHBoxLayout()
+            for num_im_j in range(num_items):
+                image = CanvasImage(1 / num_items)
+                self.class_images.append(image)
+                img_layout.addWidget(image)
+            right_layout.addLayout(img_layout)
+
+        main_layout.addLayout(right_layout)
+
+        self.setCentralWidget(central_widget)
+        self.setWindowIcon(QIcon('icon.png'))
+        self.setStyleSheet(qss)
+
+        self.visual_tree.itemClicked.connect(
+            functools.partial(self.onitemSelectionChanged, self.visual_tree))
+        self.current_node.itemClicked.connect(
+            functools.partial(self.onitemSelectionChanged, self.current_node))
+        self.search_list.itemClicked.connect(
+            functools.partial(self.onitemSelectionChanged, self.search_list))
+
+        self.visual_tree.itemSelectionChanged.connect(
+            functools.partial(self.onitemSelectionChanged, self.visual_tree))
+        self.current_node.itemSelectionChanged.connect(
+            functools.partial(self.onitemSelectionChanged, self.current_node))
+        self.search_list.itemSelectionChanged.connect(
+            functools.partial(self.onitemSelectionChanged, self.search_list))
+
+        self.visual_tree.itemDoubleClicked.connect(
+            functools.partial(self.onitemSelectionChanged, self.visual_tree))
+        self.current_node.itemDoubleClicked.connect(
+            functools.partial(self.onitemSelectionChanged, self.current_node))
+        self.search_list.itemDoubleClicked.connect(
+            functools.partial(self.onitemSelectionChanged, self.search_list))
+
+    def init_tree(self):
+        child_num = {}
+
+        def count_child(node):
+            num = 1
+            if node in self.tree['father2child']:
+                for child in self.tree['father2child'][node]:
+                    num += count_child(child)
+            child_num[node] = num
+            return num
+        count_child('n00001740')
+        self.child_num = child_num
+
+        self.show_tree()
+
+    def show_tree(self, node='n00001740', level=0, parent=None):
+        name_en = self.tree['id2name'][node]
+        name_en = name_en + '({})'.format(self.child_num[node])
+        name_zh = str(self.tree['id2name_zh'][node]) if node in self.tree['id2name_zh'] else ''
+        current = QtWidgets.QTreeWidgetItem(["{}-{}".format(level, name_en), name_zh])
+
+        current.id = node
+        if node == 'n00001740':
+            self.visual_tree.addTopLevelItem(current)
+        else:
+            parent.addChild(current)
+        if node in self.tree['father2child']:
+            for child in self.tree['father2child'][node]:
+                self.show_tree(child, level + 1, current)
+
+    def text_change(self):
+        if self.search_button.text() == 'Reset':
+            self.search(False)
+        if len(self.search_text.text().encode('utf-8')) > 1:
+            self.search(False)
+
+    def search(self, text_reset=True):
+        if self.search_button.text() == 'Search':
+            text = self.search_text.text()
+            if len(text) != 0:
+                searched_list = [class_id for class_id in self.tree['id2name'].keys() if class_id == text]
+                for item in ['id2name', 'id2name_zh', 'id2desc', 'id2desc_zh']:
+                    for k, v in self.tree[item].items():
+                        if k not in self.tree.get('child2father'):
+                            continue
+                        if isinstance(v, list):
+                            names = ''
+                            for vi in v:
+                                names += vi
+                            v = names
+                        if isinstance(v, str):
+                            if (k not in searched_list) and (text.lower() in v.lower()):
+                                if k in self.tree['id2name']:
+                                    searched_list.append(k)
+
+                self.insert_num = len(searched_list)
+                self.show_list(searched_list)
+
+            self.search_button.setText('Reset')
+
+        elif self.search_button.text() == 'Reset':
+            self.search_list.clear()
+            self.insert_num = 0
+            if text_reset:
+                self.search_text.setText('')
+            self.search_button.setText('Search')
+
+    def show_list(self, show_list, insert_index=-1):
+        num_id = 0
+        for cat_id in show_list:
+            if len(cat_id) == 0:
+                continue
+            num_id += 1
+            name_en = self.tree['id2name'][cat_id] if len(self.tree['id2name'][cat_id]) else ''
+            name_en = name_en + '({})'.format(len(self.tree['ancestor2descendant'].get(cat_id, set())))
+            name_zh = self.tree['id2name_zh'].get(cat_id, '')
+            cur = QtWidgets.QTreeWidgetItem(["{}-{}".format(num_id, name_en), name_zh])
+            cur.id = cat_id
+
+            insert_id = insert_index if insert_index >= 0 else self.search_list.topLevelItemCount()
+            self.search_list.insertTopLevelItem(insert_id, cur)
+
+    def onItemClicked(self, class_id):
+        self.class_id.setText(class_id)
+        self.class_name_en.setText(self.tree['id2name'][class_id])
+        self.class_desc_en.setText(self.tree['id2desc'].get(class_id, ''))
+        self.class_name_zh.setText(self.tree['id2name_zh'].get(class_id, ''))
+        self.class_desc_zh.setText(self.tree['id2desc_zh'].get(class_id, ''))
+
+        [im.clean() for im in self.class_images]
+        if class_id in self.visual_cat_list:
+            show_num = len(self.class_images)
+            folder = os.path.join(self.im_root, class_id)
+            im_names = os.listdir(folder)
+            num_image = 0
+            for im_i in im_names:
+                if num_image == show_num:
+                    break
+                self.class_images[num_image].load_image(os.path.join(folder, im_i))
+                num_image += 1
+
+        self.add_current(class_id)
+
+    def add_current(self, class_id):
+        name_en = self.tree['id2name'][class_id]
+        name_en = name_en + '({})'.format(len(self.tree['ancestor2descendant'].get(class_id, set())))
+        name_zh = self.tree['id2name_zh'].get(class_id, '')
+        self.current_node.clear()
+        current = QtWidgets.QTreeWidgetItem([name_en, name_zh])
+        current.id = class_id
+
+        self.current_node.addTopLevelItem(current)
+        for relation in ['father2child', 'child2father', 'id2synonym_list', 'ancestor2descendant', 'descendant2ancestor']:
+            rel = QtWidgets.QTreeWidgetItem([relation, str(len(self.tree[relation].get(class_id, [])))])
+            current.addChild(rel)
+            for rel_class in self.tree[relation].get(class_id, []):
+                name_en = self.tree['id2name'][rel_class]
+                name_en = name_en + '({})'.format(
+                    len(self.tree['ancestor2descendant'].get(rel_class, set())))
+                name_zh = self.tree['id2name_zh'].get(rel_class, '')
+                rel_node = QtWidgets.QTreeWidgetItem([name_en, name_zh])
+                rel_node.id = rel_class
+                rel.addChild(rel_node)
+        self.current_node.expandAll()
+
+    def onitemSelectionChanged(self, node_tree):
+        if node_tree.selectedItems():
+            if hasattr(node_tree.selectedItems()[0], 'id'):
+                self.onItemClicked(node_tree.selectedItems()[0].id)
+
+    def keyPressEvent(self, qKeyEvent):
+        super().keyPressEvent(qKeyEvent)
+
+
+class CanvasImage(QtWidgets.QLabel):
+    def __init__(self, scale=1.):
+        super().__init__()
+        self.save_root = 'select'
+        self.scale = scale
+        self.clean()
+
+    def load_image(self, path):
+        pixmap = QPixmap(path)
+        w, h = pixmap.width(), pixmap.height()
+        r = min(self.scale * W / w, self.scale * H / h)
+        w, h = int(r * w), int(r * h)
+        pixmap = pixmap.scaled(w, h, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
+
+        self.setAlignment(Qt.AlignCenter | Qt.AlignCenter)
+        self.setPixmap(pixmap)
+
+    def clean(self):
+        pixmap = QtGui.QPixmap(int(W * self.scale), int(H * self.scale))
+        pixmap.fill(QColor("white"))
+        self.setPixmap(pixmap)
+
+
+if __name__ == '__main__':
+    app = QtWidgets.QApplication(sys.argv)
+    app.setStyle('Material')
+    window = MainWindow()
+    window.show()
+    app.exec_()
+