{"id":86678,"date":"2026-07-29T01:16:52","date_gmt":"2026-07-28T17:16:52","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/86678.html"},"modified":"2026-07-29T01:16:52","modified_gmt":"2026-07-28T17:16:52","slug":"yolov8-bytetrack-%e8%bd%a6%e8%be%86%e8%b7%9f%e8%b8%aa%e8%ae%a1%e6%95%b0%e5%ae%9e%e6%88%98%ef%bc%9a%e8%b7%a8%e7%ba%bf%e7%bb%9f%e8%ae%a1%e5%ae%8c%e6%95%b4%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/86678.html","title":{"rendered":"YOLOv8 + ByteTrack \u8f66\u8f86\u8ddf\u8e2a\u8ba1\u6570\u5b9e\u6218\uff1a\u8de8\u7ebf\u7edf\u8ba1\u5b8c\u6574\u6d41\u7a0b"},"content":{"rendered":"<h2>YOLOv8 &#043; ByteTrack \u8f66\u8f86\u8ddf\u8e2a\u8ba1\u6570\u5b9e\u6218&#xff1a;\u8de8\u7ebf\u7edf\u8ba1\u5b8c\u6574\u6d41\u7a0b<\/h2>\n<hr \/>\n<p>\u8fd9\u7bc7\u6559\u7a0b\u6839\u636e\u6211\u590d\u73b0\u8f66\u8f86\u8ddf\u8e2a\u8ba1\u6570\u6d41\u7a0b\u65f6\u6574\u7406&#xff0c;\u91cd\u70b9\u6f14\u793a\u89c6\u9891\u51c6\u5907\u3001YOLOv8 \u68c0\u6d4b\u3001ByteTrack \u8ddf\u8e2a\u3001\u8de8\u7ebf\u8ba1\u6570\u548c\u7ed3\u679c\u89c6\u9891\u5bfc\u51fa\u3002<\/p>\n<p>\u672c\u6587\u6574\u7406\u81ea\u6211\u7684\u5b66\u4e60\u548c\u9879\u76ee\u590d\u73b0\u8fc7\u7a0b&#xff0c;\u5c3d\u91cf\u6309\u5b9e\u64cd\u987a\u5e8f\u4fdd\u7559 notebook \u7684\u5173\u952e\u6b65\u9aa4&#xff0c;\u540c\u65f6\u628a\u6570\u636e\u96c6\u83b7\u53d6\u65b9\u5f0f\u8c03\u6574\u4e3a\u9002\u5408\u4e2d\u6587\u6559\u7a0b\u53d1\u5e03\u7684\u5199\u6cd5\u3002<\/p>\n<p>\u672c\u6587\u4f1a\u91cd\u70b9\u8dd1\u901a\u4ee5\u4e0b\u6d41\u7a0b&#xff1a;<\/p>\n<ul>\n<li>\u51c6\u5907\u8f66\u8f86\u8ba1\u6570\u89c6\u9891<\/li>\n<li>\u5b89\u88c5 YOLOv8 \u548c ByteTrack<\/li>\n<li>\u5c01\u88c5\u8ddf\u8e2a\u5668\u53c2\u6570\u4e0e\u5339\u914d\u903b\u8f91<\/li>\n<li>\u7b5b\u9009\u8f66\u8f86\u7c7b\u522b\u5e76\u8fd0\u884c\u68c0\u6d4b<\/li>\n<li>\u6309\u8de8\u7ebf\u65b9\u5411\u7edf\u8ba1\u8f66\u8f86\u6570\u91cf<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u7cfb\u7edf\u5b66\u4e60\u76ee\u6807\u68c0\u6d4b\u3001\u5b9e\u4f8b\u5206\u5272\u3001OCR\u3001\u591a\u76ee\u6807\u8ddf\u8e2a\u6216\u89c6\u89c9\u5927\u6a21\u578b&#xff0c;\u5efa\u8bae\u6536\u85cf\u672c\u6587&#xff1b;\u914d\u5957 notebook\u3001\u793a\u4f8b\u56fe\u7247\u548c\u8fd0\u884c\u73af\u5883\u8bf4\u660e\u540e\u7eed\u4f1a\u7ee7\u7eed\u6574\u7406\u3002\u5982\u679c\u73af\u5883\u914d\u7f6e\u5361\u4f4f&#xff0c;\u53ef\u4ee5\u5728\u8bc4\u8bba\u533a\u8bf4\u660e\u5177\u4f53\u62a5\u9519\u3002<\/p>\n<\/p>\n<h4>&#x1f4da; \u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>YOLOv8 &#043; ByteTrack \u8f66\u8f86\u8ddf\u8e2a\u8ba1\u6570\u5b9e\u6218&#xff1a;\u8de8\u7ebf\u7edf\u8ba1\u5b8c\u6574\u6d41\u7a0b<\/li>\n<li>\n<ul>\n<li>\u2699\ufe0f \u68c0\u67e5\u73af\u5883<\/li>\n<li>&#x1f3ac; \u51c6\u5907\u8f66\u8f86\u89c6\u9891<\/li>\n<li>&#x1f9e9; \u5b89\u88c5 YOLOv8<\/li>\n<li>&#x1f9e9; \u5b89\u88c5 ByteTrack<\/li>\n<li>&#x1f527; \u5c01\u88c5\u8ddf\u8e2a\u53c2\u6570<\/li>\n<li>&#x1f9e9; \u5b89\u88c5 Supervision<\/li>\n<li>&#x1f697; \u52a0\u8f7d\u68c0\u6d4b\u6a21\u578b<\/li>\n<li>&#x1f3f7;\ufe0f \u7b5b\u9009\u8f66\u8f86\u7c7b\u522b<\/li>\n<li>&#x1f5bc;\ufe0f \u5355\u5e27\u68c0\u6d4b\u9884\u89c8<\/li>\n<li>&#x1f4cf; \u8bbe\u7f6e\u8ba1\u6570\u7ebf<\/li>\n<li>&#x1f4f9; \u751f\u6210\u8ba1\u6570\u89c6\u9891<\/li>\n<li>&#x1f4cc; \u5c0f\u7ed3<\/li>\n<li>&#x1f4da; \u540c\u7cfb\u5217\u6559\u7a0b\u6c47\u603b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u2699\ufe0f \u68c0\u67e5\u73af\u5883<\/h3>\n<p>\u786e\u8ba4 GPU \u548c\u5de5\u4f5c\u76ee\u5f55\u3002<\/p>\n<p>!nvidia<span class=\"token operator\">&#8211;<\/span>smi<\/p>\n<p><span class=\"token keyword\">import<\/span> os<br \/>\nHOME <span class=\"token operator\">&#061;<\/span> os<span class=\"token punctuation\">.<\/span>getcwd<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>HOME<span class=\"token punctuation\">)<\/span><\/p>\n<h3>&#x1f3ac; \u51c6\u5907\u8f66\u8f86\u89c6\u9891<\/h3>\n<p>\u4e0b\u8f7d\u8f66\u8f86\u8ba1\u6570\u793a\u4f8b\u89c6\u9891&#xff0c;\u4e5f\u53ef\u4ee5\u66ff\u6362\u4e3a\u81ea\u5df1\u7684\u89c6\u9891\u3002<\/p>\n<p><span class=\"token operator\">%<\/span>cd <span class=\"token punctuation\">{<\/span>HOME<span class=\"token punctuation\">}<\/span><br \/>\n!wget <span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span>load<span class=\"token operator\">&#8211;<\/span>cookies <span class=\"token operator\">\/<\/span>tmp<span class=\"token operator\">\/<\/span>cookies<span class=\"token punctuation\">.<\/span>txt <span class=\"token string\">&#034;https:\/\/docs.google.com\/uc?export&#061;download&amp;confirm&#061;$(wget &#8211;quiet &#8211;save-cookies \/tmp\/cookies.txt &#8211;keep-session-cookies &#8211;no-check-certificate &#039;https:\/\/docs.google.com\/uc?export&#061;download&amp;id&#061;1pz68D1Gsx80MoPg-_q-IbEdESEmyVLm-&#039; -O- | sed -rn &#039;s\/.*confirm&#061;([0-9A-Za-z_]&#043;).*\/\\\\1\\\\n\/p&#039;)&amp;id&#061;1pz68D1Gsx80MoPg-_q-IbEdESEmyVLm-&#034;<\/span> <span class=\"token operator\">&#8211;<\/span>O vehicle<span class=\"token operator\">&#8211;<\/span>counting<span class=\"token punctuation\">.<\/span>mp4 <span class=\"token operator\">&amp;<\/span><span class=\"token operator\">&amp;<\/span> rm <span class=\"token operator\">&#8211;<\/span>rf <span class=\"token operator\">\/<\/span>tmp<span class=\"token operator\">\/<\/span>cookies<span class=\"token punctuation\">.<\/span>txt<\/p>\n<p>SOURCE_VIDEO_PATH <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>HOME<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\/vehicle-counting.mp4&#034;<\/span><\/span><\/p>\n<h3>&#x1f9e9; \u5b89\u88c5 YOLOv8<\/h3>\n<p>\u5b89\u88c5 Ultralytics \u5e76\u5173\u95ed\u533f\u540d\u540c\u6b65\u3002<\/p>\n<p><span class=\"token comment\"># Pip install method (recommended)<\/span><\/p>\n<p>!pip install <span class=\"token string\">&#034;ultralytics&lt;&#061;8.3.40&#034;<\/span><\/p>\n<p><span class=\"token keyword\">from<\/span> IPython <span class=\"token keyword\">import<\/span> display<br \/>\ndisplay<span class=\"token punctuation\">.<\/span>clear_output<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u5173\u95ed Ultralytics \u533f\u540d\u540c\u6b65<\/span><br \/>\n!yolo settings sync<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> ultralytics<br \/>\nultralytics<span class=\"token punctuation\">.<\/span>checks<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>&#x1f9e9; \u5b89\u88c5 ByteTrack<\/h3>\n<p>\u5b89\u88c5 ByteTrack \u53ca\u76f8\u5173\u4f9d\u8d56\u3002<\/p>\n<p><span class=\"token operator\">%<\/span>cd <span class=\"token punctuation\">{<\/span>HOME<span class=\"token punctuation\">}<\/span><br \/>\n!git clone https<span class=\"token punctuation\">:<\/span><span class=\"token operator\">\/\/<\/span>github<span class=\"token punctuation\">.<\/span>com<span class=\"token operator\">\/<\/span>ifzhang<span class=\"token operator\">\/<\/span>ByteTrack<span class=\"token punctuation\">.<\/span>git<br \/>\n<span class=\"token operator\">%<\/span>cd <span class=\"token punctuation\">{<\/span>HOME<span class=\"token punctuation\">}<\/span><span class=\"token operator\">\/<\/span>ByteTrack<\/p>\n<p><span class=\"token comment\"># \u517c\u5bb9\u65e7\u7248\u4f9d\u8d56<\/span><br \/>\n!sed <span class=\"token operator\">&#8211;<\/span>i <span class=\"token string\">&#039;s\/onnx&#061;&#061;1.8.1\/onnx&#061;&#061;1.9.0\/g&#039;<\/span> requirements<span class=\"token punctuation\">.<\/span>txt<\/p>\n<p>!pip3 install <span class=\"token operator\">&#8211;<\/span>q <span class=\"token operator\">&#8211;<\/span>r requirements<span class=\"token punctuation\">.<\/span>txt<br \/>\n!python3 setup<span class=\"token punctuation\">.<\/span>py <span class=\"token operator\">&#8211;<\/span>q develop<br \/>\n!pip install <span class=\"token operator\">&#8211;<\/span>q cython_bbox<br \/>\n!pip install <span class=\"token operator\">&#8211;<\/span>q onemetric<br \/>\n<span class=\"token comment\"># \u517c\u5bb9\u65e7\u7248\u4f9d\u8d56<\/span><br \/>\n!pip install <span class=\"token operator\">&#8211;<\/span>q loguru lap thop<\/p>\n<p><span class=\"token keyword\">from<\/span> IPython <span class=\"token keyword\">import<\/span> display<br \/>\ndisplay<span class=\"token punctuation\">.<\/span>clear_output<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> sys<br \/>\nsys<span class=\"token punctuation\">.<\/span>path<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>HOME<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\/ByteTrack&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> yolox<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;yolox.__version__:&#034;<\/span><span class=\"token punctuation\">,<\/span> yolox<span class=\"token punctuation\">.<\/span>__version__<span class=\"token punctuation\">)<\/span><\/p>\n<h3>&#x1f527; \u5c01\u88c5\u8ddf\u8e2a\u53c2\u6570<\/h3>\n<p>\u5b9a\u4e49 ByteTrack \u53c2\u6570\u548c\u68c0\u6d4b\u6846\u5339\u914d\u903b\u8f91\u3002<\/p>\n<p><span class=\"token keyword\">from<\/span> yolox<span class=\"token punctuation\">.<\/span>tracker<span class=\"token punctuation\">.<\/span>byte_tracker <span class=\"token keyword\">import<\/span> BYTETracker<span class=\"token punctuation\">,<\/span> STrack<br \/>\n<span class=\"token keyword\">from<\/span> onemetric<span class=\"token punctuation\">.<\/span>cv<span class=\"token punctuation\">.<\/span>utils<span class=\"token punctuation\">.<\/span>iou <span class=\"token keyword\">import<\/span> box_iou_batch<br \/>\n<span class=\"token keyword\">from<\/span> dataclasses <span class=\"token keyword\">import<\/span> dataclass<\/p>\n<p><span class=\"token decorator annotation punctuation\">&#064;dataclass<\/span><span class=\"token punctuation\">(<\/span>frozen<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BYTETrackerArgs<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    track_thresh<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0.25<\/span><br \/>\n    track_buffer<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">int<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">30<\/span><br \/>\n    match_thresh<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0.8<\/span><br \/>\n    aspect_ratio_thresh<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3.0<\/span><br \/>\n    min_box_area<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1.0<\/span><br \/>\n    mot20<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">bool<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">False<\/span><\/p>\n<h3>&#x1f9e9; \u5b89\u88c5 Supervision<\/h3>\n<p>\u5b89\u88c5\u89c6\u9891\u8bfb\u53d6\u3001\u6807\u6ce8\u548c\u8de8\u7ebf\u8ba1\u6570\u5de5\u5177\u3002<\/p>\n<p>!pip install supervision<span class=\"token operator\">&#061;&#061;<\/span><span class=\"token number\">0.1<\/span><span class=\"token number\">.0<\/span><\/p>\n<p><span class=\"token keyword\">from<\/span> IPython <span class=\"token keyword\">import<\/span> display<br \/>\ndisplay<span class=\"token punctuation\">.<\/span>clear_output<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> supervision<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;supervision.__version__:&#034;<\/span><span class=\"token punctuation\">,<\/span> supervision<span class=\"token punctuation\">.<\/span>__version__<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>draw<span class=\"token punctuation\">.<\/span>color <span class=\"token keyword\">import<\/span> ColorPalette<br \/>\n<span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>geometry<span class=\"token punctuation\">.<\/span>dataclasses <span class=\"token keyword\">import<\/span> Point<br \/>\n<span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>video<span class=\"token punctuation\">.<\/span>dataclasses <span class=\"token keyword\">import<\/span> VideoInfo<br \/>\n<span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>video<span class=\"token punctuation\">.<\/span>source <span class=\"token keyword\">import<\/span> get_video_frames_generator<br \/>\n<span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>video<span class=\"token punctuation\">.<\/span>sink <span class=\"token keyword\">import<\/span> VideoSink<br \/>\n<span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>notebook<span class=\"token punctuation\">.<\/span>utils <span class=\"token keyword\">import<\/span> show_frame_in_notebook<br \/>\n<span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>tools<span class=\"token punctuation\">.<\/span>detections <span class=\"token keyword\">import<\/span> Detections<span class=\"token punctuation\">,<\/span> BoxAnnotator<br \/>\n<span class=\"token keyword\">from<\/span> supervision<span class=\"token punctuation\">.<\/span>tools<span class=\"token punctuation\">.<\/span>line_counter <span class=\"token keyword\">import<\/span> LineCounter<span class=\"token punctuation\">,<\/span> LineCounterAnnotator<\/p>\n<p><span class=\"token keyword\">from<\/span> typing <span class=\"token keyword\">import<\/span> List<\/p>\n<p><span class=\"token keyword\">import<\/span> numpy <span class=\"token keyword\">as<\/span> np<\/p>\n<p><span class=\"token comment\"># converts Detections into format that can be consumed by match_detections_with_tracks function<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">detections2boxes<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">:<\/span> Detections<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&gt;<\/span> np<span class=\"token punctuation\">.<\/span>ndarray<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> np<span class=\"token punctuation\">.<\/span>hstack<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><br \/>\n        detections<span class=\"token punctuation\">.<\/span>xyxy<span class=\"token punctuation\">,<\/span><br \/>\n        detections<span class=\"token punctuation\">.<\/span>confidence<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">,<\/span> np<span class=\"token punctuation\">.<\/span>newaxis<span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># converts List[STrack] into format that can be consumed by match_detections_with_tracks function<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">tracks2boxes<\/span><span class=\"token punctuation\">(<\/span>tracks<span class=\"token punctuation\">:<\/span> List<span class=\"token punctuation\">[<\/span>STrack<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&gt;<\/span> np<span class=\"token punctuation\">.<\/span>ndarray<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> np<span class=\"token punctuation\">.<\/span>array<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><br \/>\n        track<span class=\"token punctuation\">.<\/span>tlbr<br \/>\n        <span class=\"token keyword\">for<\/span> track<br \/>\n        <span class=\"token keyword\">in<\/span> tracks<br \/>\n    <span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> dtype<span class=\"token operator\">&#061;<\/span><span class=\"token builtin\">float<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># matches our bounding boxes with predictions<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">match_detections_with_tracks<\/span><span class=\"token punctuation\">(<\/span><br \/>\n    detections<span class=\"token punctuation\">:<\/span> Detections<span class=\"token punctuation\">,<\/span><br \/>\n    tracks<span class=\"token punctuation\">:<\/span> List<span class=\"token punctuation\">[<\/span>STrack<span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&gt;<\/span> Detections<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> np<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">any<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">.<\/span>xyxy<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">or<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>tracks<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> np<span class=\"token punctuation\">.<\/span>empty<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    tracks_boxes <span class=\"token operator\">&#061;<\/span> tracks2boxes<span class=\"token punctuation\">(<\/span>tracks<span class=\"token operator\">&#061;<\/span>tracks<span class=\"token punctuation\">)<\/span><br \/>\n    iou <span class=\"token operator\">&#061;<\/span> box_iou_batch<span class=\"token punctuation\">(<\/span>tracks_boxes<span class=\"token punctuation\">,<\/span> detections<span class=\"token punctuation\">.<\/span>xyxy<span class=\"token punctuation\">)<\/span><br \/>\n    track2detection <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>argmax<span class=\"token punctuation\">(<\/span>iou<span class=\"token punctuation\">,<\/span> axis<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    tracker_ids <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token boolean\">None<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">for<\/span> tracker_index<span class=\"token punctuation\">,<\/span> detection_index <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">enumerate<\/span><span class=\"token punctuation\">(<\/span>track2detection<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> iou<span class=\"token punctuation\">[<\/span>tracker_index<span class=\"token punctuation\">,<\/span> detection_index<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            tracker_ids<span class=\"token punctuation\">[<\/span>detection_index<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> tracks<span class=\"token punctuation\">[<\/span>tracker_index<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>track_id<\/p>\n<p>    <span class=\"token keyword\">return<\/span> tracker_ids<\/p>\n<h3>&#x1f697; \u52a0\u8f7d\u68c0\u6d4b\u6a21\u578b<\/h3>\n<p>\u52a0\u8f7d YOLOv8 \u8f66\u8f86\u68c0\u6d4b\u6a21\u578b\u3002<\/p>\n<p><span class=\"token comment\"># \u53c2\u6570\u8bbe\u7f6e<\/span><br \/>\nMODEL <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;yolov8x.pt&#034;<\/span><\/p>\n<p><span class=\"token keyword\">from<\/span> ultralytics <span class=\"token keyword\">import<\/span> YOLO<\/p>\n<p>model <span class=\"token operator\">&#061;<\/span> YOLO<span class=\"token punctuation\">(<\/span>MODEL<span class=\"token punctuation\">)<\/span><br \/>\nmodel<span class=\"token punctuation\">.<\/span>fuse<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>&#x1f3f7;\ufe0f \u7b5b\u9009\u8f66\u8f86\u7c7b\u522b<\/h3>\n<p>\u53ea\u4fdd\u7559 car\u3001motorcycle\u3001bus\u3001truck \u7b49\u7c7b\u522b\u3002<\/p>\n<p><span class=\"token comment\"># \u7c7b\u522b ID \u5230\u7c7b\u522b\u540d\u7684\u6620\u5c04<\/span><br \/>\nCLASS_NAMES_DICT <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">.<\/span>model<span class=\"token punctuation\">.<\/span>names<br \/>\n<span class=\"token comment\"># \u5173\u6ce8\u8f66\u8f86\u7c7b\u522b&#xff1a;car\u3001motorcycle\u3001bus\u3001truck<\/span><br \/>\nCLASS_ID <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<h3>&#x1f5bc;\ufe0f \u5355\u5e27\u68c0\u6d4b\u9884\u89c8<\/h3>\n<p>\u5728\u5355\u5e27\u4e0a\u68c0\u67e5\u68c0\u6d4b\u6846\u548c\u7c7b\u522b\u6807\u7b7e\u3002<\/p>\n<p><span class=\"token comment\"># \u521b\u5efa\u89c6\u9891\u5e27\u751f\u6210\u5668<\/span><br \/>\ngenerator <span class=\"token operator\">&#061;<\/span> get_video_frames_generator<span class=\"token punctuation\">(<\/span>SOURCE_VIDEO_PATH<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># create instance of BoxAnnotator<\/span><br \/>\nbox_annotator <span class=\"token operator\">&#061;<\/span> BoxAnnotator<span class=\"token punctuation\">(<\/span>color<span class=\"token operator\">&#061;<\/span>ColorPalette<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> thickness<span class=\"token operator\">&#061;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> text_thickness<span class=\"token operator\">&#061;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> text_scale<span class=\"token operator\">&#061;<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># acquire first video frame<\/span><br \/>\niterator <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">iter<\/span><span class=\"token punctuation\">(<\/span>generator<span class=\"token punctuation\">)<\/span><br \/>\nframe <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">next<\/span><span class=\"token punctuation\">(<\/span>iterator<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># model prediction on single frame and conversion to supervision Detections<\/span><br \/>\nresults <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">)<\/span><br \/>\ndetections <span class=\"token operator\">&#061;<\/span> Detections<span class=\"token punctuation\">(<\/span><br \/>\n    xyxy<span class=\"token operator\">&#061;<\/span>results<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>boxes<span class=\"token punctuation\">.<\/span>xyxy<span class=\"token punctuation\">.<\/span>cpu<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>numpy<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    confidence<span class=\"token operator\">&#061;<\/span>results<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>boxes<span class=\"token punctuation\">.<\/span>conf<span class=\"token punctuation\">.<\/span>cpu<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>numpy<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    class_id<span class=\"token operator\">&#061;<\/span>results<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>boxes<span class=\"token punctuation\">.<\/span>cls<span class=\"token punctuation\">.<\/span>cpu<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>numpy<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>astype<span class=\"token punctuation\">(<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># format custom labels<\/span><br \/>\nlabels <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><br \/>\n    <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>CLASS_NAMES_DICT<span class=\"token punctuation\">[<\/span>class_id<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>confidence<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">0.2f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><br \/>\n    <span class=\"token keyword\">for<\/span> _<span class=\"token punctuation\">,<\/span> confidence<span class=\"token punctuation\">,<\/span> class_id<span class=\"token punctuation\">,<\/span> tracker_id<br \/>\n    <span class=\"token keyword\">in<\/span> detections<br \/>\n<span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token comment\"># annotate and display frame<\/span><br \/>\nframe <span class=\"token operator\">&#061;<\/span> box_annotator<span class=\"token punctuation\">.<\/span>annotate<span class=\"token punctuation\">(<\/span>frame<span class=\"token operator\">&#061;<\/span>frame<span class=\"token punctuation\">,<\/span> detections<span class=\"token operator\">&#061;<\/span>detections<span class=\"token punctuation\">,<\/span> labels<span class=\"token operator\">&#061;<\/span>labels<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token operator\">%<\/span>matplotlib inline<br \/>\nshow_frame_in_notebook<span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">16<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">16<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260728171650-6a68e402f30e5.png\" alt=\"\u5916\u94fe\u56fe\u7247\u8f6c\u5b58\u5931\u8d25,\u6e90\u7ad9\u53ef\u80fd\u6709\u9632\u76d7\u94fe\u673a\u5236,\u5efa\u8bae\u5c06\u56fe\u7247\u4fdd\u5b58\u4e0b\u6765\u76f4\u63a5\u4e0a\u4f20\" \/><\/p>\n<h3>&#x1f4cf; \u8bbe\u7f6e\u8ba1\u6570\u7ebf<\/h3>\n<p>\u5b9a\u4e49\u8de8\u7ebf\u7edf\u8ba1\u4f4d\u7f6e\u548c\u8f93\u51fa\u89c6\u9891\u8def\u5f84\u3002<\/p>\n<p><span class=\"token comment\"># \u53c2\u6570\u8bbe\u7f6e<\/span><br \/>\nLINE_START <span class=\"token operator\">&#061;<\/span> Point<span class=\"token punctuation\">(<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1500<\/span><span class=\"token punctuation\">)<\/span><br \/>\nLINE_END <span class=\"token operator\">&#061;<\/span> Point<span class=\"token punctuation\">(<\/span><span class=\"token number\">3840<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1500<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>TARGET_VIDEO_PATH <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>HOME<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\/vehicle-counting-result.mp4&#034;<\/span><\/span><\/p>\n<p>VideoInfo<span class=\"token punctuation\">.<\/span>from_video_path<span class=\"token punctuation\">(<\/span>SOURCE_VIDEO_PATH<span class=\"token punctuation\">)<\/span><\/p>\n<h3>&#x1f4f9; \u751f\u6210\u8ba1\u6570\u89c6\u9891<\/h3>\n<p>\u9010\u5e27\u68c0\u6d4b\u3001\u8ddf\u8e2a\u5e76\u7edf\u8ba1\u8f66\u8f86\u901a\u8fc7\u6570\u91cf\u3002<\/p>\n<p><span class=\"token keyword\">from<\/span> tqdm<span class=\"token punctuation\">.<\/span>notebook <span class=\"token keyword\">import<\/span> tqdm<\/p>\n<p><span class=\"token comment\"># create BYTETracker instance<\/span><br \/>\nbyte_tracker <span class=\"token operator\">&#061;<\/span> BYTETracker<span class=\"token punctuation\">(<\/span>BYTETrackerArgs<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># create VideoInfo instance<\/span><br \/>\nvideo_info <span class=\"token operator\">&#061;<\/span> VideoInfo<span class=\"token punctuation\">.<\/span>from_video_path<span class=\"token punctuation\">(<\/span>SOURCE_VIDEO_PATH<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u521b\u5efa\u89c6\u9891\u5e27\u751f\u6210\u5668<\/span><br \/>\ngenerator <span class=\"token operator\">&#061;<\/span> get_video_frames_generator<span class=\"token punctuation\">(<\/span>SOURCE_VIDEO_PATH<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># create LineCounter instance<\/span><br \/>\nline_counter <span class=\"token operator\">&#061;<\/span> LineCounter<span class=\"token punctuation\">(<\/span>start<span class=\"token operator\">&#061;<\/span>LINE_START<span class=\"token punctuation\">,<\/span> end<span class=\"token operator\">&#061;<\/span>LINE_END<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># create instance of BoxAnnotator and LineCounterAnnotator<\/span><br \/>\nbox_annotator <span class=\"token operator\">&#061;<\/span> BoxAnnotator<span class=\"token punctuation\">(<\/span>color<span class=\"token operator\">&#061;<\/span>ColorPalette<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> thickness<span class=\"token operator\">&#061;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> text_thickness<span class=\"token operator\">&#061;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> text_scale<span class=\"token operator\">&#061;<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><br \/>\nline_annotator <span class=\"token operator\">&#061;<\/span> LineCounterAnnotator<span class=\"token punctuation\">(<\/span>thickness<span class=\"token operator\">&#061;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> text_thickness<span class=\"token operator\">&#061;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> text_scale<span class=\"token operator\">&#061;<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># open target video file<\/span><br \/>\n<span class=\"token keyword\">with<\/span> VideoSink<span class=\"token punctuation\">(<\/span>TARGET_VIDEO_PATH<span class=\"token punctuation\">,<\/span> video_info<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> sink<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># loop over video frames<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> frame <span class=\"token keyword\">in<\/span> tqdm<span class=\"token punctuation\">(<\/span>generator<span class=\"token punctuation\">,<\/span> total<span class=\"token operator\">&#061;<\/span>video_info<span class=\"token punctuation\">.<\/span>total_frames<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># model prediction on single frame and conversion to supervision Detections<\/span><br \/>\n        results <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">)<\/span><br \/>\n        detections <span class=\"token operator\">&#061;<\/span> Detections<span class=\"token punctuation\">(<\/span><br \/>\n            xyxy<span class=\"token operator\">&#061;<\/span>results<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>boxes<span class=\"token punctuation\">.<\/span>xyxy<span class=\"token punctuation\">.<\/span>cpu<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>numpy<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            confidence<span class=\"token operator\">&#061;<\/span>results<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>boxes<span class=\"token punctuation\">.<\/span>conf<span class=\"token punctuation\">.<\/span>cpu<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>numpy<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            class_id<span class=\"token operator\">&#061;<\/span>results<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>boxes<span class=\"token punctuation\">.<\/span>cls<span class=\"token punctuation\">.<\/span>cpu<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>numpy<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>astype<span class=\"token punctuation\">(<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token comment\"># filtering out detections with unwanted classes<\/span><br \/>\n        mask <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>array<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>class_id <span class=\"token keyword\">in<\/span> CLASS_ID <span class=\"token keyword\">for<\/span> class_id <span class=\"token keyword\">in<\/span> detections<span class=\"token punctuation\">.<\/span>class_id<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> dtype<span class=\"token operator\">&#061;<\/span><span class=\"token builtin\">bool<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        detections<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">filter<\/span><span class=\"token punctuation\">(<\/span>mask<span class=\"token operator\">&#061;<\/span>mask<span class=\"token punctuation\">,<\/span> inplace<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token comment\"># tracking detections<\/span><br \/>\n        tracks <span class=\"token operator\">&#061;<\/span> byte_tracker<span class=\"token punctuation\">.<\/span>update<span class=\"token punctuation\">(<\/span><br \/>\n            output_results<span class=\"token operator\">&#061;<\/span>detections2boxes<span class=\"token punctuation\">(<\/span>detections<span class=\"token operator\">&#061;<\/span>detections<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            img_info<span class=\"token operator\">&#061;<\/span>frame<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">,<\/span><br \/>\n            img_size<span class=\"token operator\">&#061;<\/span>frame<span class=\"token punctuation\">.<\/span>shape<br \/>\n        <span class=\"token punctuation\">)<\/span><br \/>\n        tracker_id <span class=\"token operator\">&#061;<\/span> match_detections_with_tracks<span class=\"token punctuation\">(<\/span>detections<span class=\"token operator\">&#061;<\/span>detections<span class=\"token punctuation\">,<\/span> tracks<span class=\"token operator\">&#061;<\/span>tracks<span class=\"token punctuation\">)<\/span><br \/>\n        detections<span class=\"token punctuation\">.<\/span>tracker_id <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>array<span class=\"token punctuation\">(<\/span>tracker_id<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token comment\"># filtering out detections without trackers<\/span><br \/>\n        mask <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>array<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>tracker_id <span class=\"token keyword\">is<\/span> <span class=\"token keyword\">not<\/span> <span class=\"token boolean\">None<\/span> <span 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