[{"data":1,"prerenderedAt":380},["ShallowReactive",2],{"community-status":3,"help-video-analysis-zh":5,"help-neighbours-video-analysis-zh":373},{"enabled":4},false,{"id":6,"title":7,"audience":8,"body":10,"description":345,"extension":346,"faq":347,"meta":363,"navigation":364,"path":365,"platforms":366,"seo":367,"stem":368,"topics":369,"updated":371,"__hash__":372},"help\u002Fzh\u002Fhelp\u002Fvideo-analysis.md","视频分析",[9],"coach",{"type":11,"value":12,"toc":333},"minimark",[13,17,41,53,59,62,77,84,87,136,139,240,246,249,253,264,267,295,298,304,307],[14,15,16],"h2",{"id":16},"打开它",[18,19,20,32],"ul",{},[21,22,23,27,28,31],"li",{},[24,25,26],"strong",{},"手机","：",[24,29,30],{},"个人资料 → 视频分析","。",[21,33,34,37,38,40],{},[24,35,36],{},"平板和电脑","：侧边栏里的",[24,39,7],{},"标签页。",[42,43,44,45,48,49,52],"p",{},"每个人都可以使用，不需要特殊角色。点",[24,46,47],{},"New analysis","（",[24,50,51],{},"+","），从相册或文件中选一个视频。",[54,55],"help-shot",{"alt":56,"caption":57,"name":58},"视频分析界面，显示还没有分析和一个 + 按钮","点 + 开始，选一个训练视频。","video-empty",[14,60,61],{"id":61},"你的分析",[42,63,64,65,68,69,72,73,76],{},"每个视频都会成为一个带有自己测量结果的分析。列表会显示它包含多少个图形。",[24,66,67],{},"⋮"," 菜单可以",[24,70,71],{},"重命名","或",[24,74,75],{},"删除","分析。",[42,78,79,80,83],{},"分析",[24,81,82],{},"只保存在你的设备上","。它们不会被上传或同步，所以不会转移到新手机。在浏览器里，刷新页面后视频本身不会保留：应用会请你重新选择文件，而你的测量结果仍然在。",[14,85,86],{"id":86},"浏览视频",[18,88,89,107,110,116,126],{},[21,90,91,94,95,98,99,102,103,106],{},[24,92,93],{},"Previous frame"," \u002F ",[24,96,97],{},"Next frame"," 用于逐帧步进，还有",[24,100,101],{},"Play","\u002F",[24,104,105],{},"暂停","和进度条。",[21,108,109],{},"读数显示秒数和帧号，方便你数入水和出水之间有多少帧。",[21,111,112,115],{},[24,113,114],{},"播放速度","：0.25×、0.5×、1× 或 2×。",[21,117,118,121,122,125],{},[24,119,120],{},"缩放","：双指捏合，或使用缩放按钮。",[24,123,124],{},"Fit"," 会再次显示整个画面。",[21,127,128,131,132,135],{},[24,129,130],{},"播放设置","：如果某个视频报告的帧率不对，可以设置",[24,133,134],{},"帧率","（默认 30）。",[14,137,138],{"id":138},"测量工具",[140,141,142,158],"table",{},[143,144,145],"thead",{},[146,147,148,152,155],"tr",{},[149,150,151],"th",{},"工具",[149,153,154],{},"快捷键",[149,156,157],{},"作用",[159,160,161,175,188,201,214,227],"tbody",{},[146,162,163,169,172],{},[164,165,166],"td",{},[24,167,168],{},"Select",[164,170,171],{},"V",[164,173,174],{},"选择并移动图形。",[146,176,177,182,185],{},[164,178,179],{},[24,180,181],{},"Distance",[164,183,184],{},"L",[164,186,187],{},"画一条线并查看它的长度。",[146,189,190,195,198],{},[164,191,192],{},[24,193,194],{},"Angle",[164,196,197],{},"A",[164,199,200],{},"三个点，以度数显示角度，例如入水时的桨角。",[146,202,203,208,211],{},[164,204,205],{},[24,206,207],{},"Circle",[164,209,210],{},"C",[164,212,213],{},"画一个圆，例如围绕桨叶。",[146,215,216,221,224],{},[164,217,218],{},[24,219,220],{},"Calibrate",[164,222,223],{},"K",[164,225,226],{},"标出一段已知长度，这样距离会以米而不是像素显示。",[146,228,229,234,237],{},[164,230,231],{},[24,232,233],{},"Trajectory",[164,235,236],{},"T",[164,238,239],{},"点击若干点画出一条路径，例如整个划桨过程中桨尖的轨迹。",[42,241,242,245],{},[24,243,244],{},"想要真实长度，请先校准","：沿着你知道长度的东西画一条线，例如船舷处的船宽，然后输入它的实际长度（m、cm、mm、ft 或 in）。不校准的话，距离以像素为单位。",[42,247,248],{},"键盘快捷键在带键盘的电脑和平板上可用，另外还有：方向键逐帧步进，空格键播放\u002F暂停，Delete 删除图形，Ctrl\u002FCmd+Z 撤销，+ 和 − 缩放，0 重置。",[14,250,252],{"id":251},"跟踪移动的点追踪","跟踪移动的点（追踪）",[42,254,255,256,259,260,263],{},"默认情况下，图形停留在你放置的位置。要让一个点跟随划手或桨叶，打开",[24,257,258],{},"Tracking","，选中图形，跳到另一帧，把它的手柄拖到新位置（",[24,261,262],{},"Set key","）。在几帧上重复这样做，图形就会在视频中沿着你的关键帧移动。",[14,265,266],{"id":266},"面板",[18,268,269,279,285],{},[21,270,271,274,275,278],{},[24,272,273],{},"测量","：所有图形及其数值。",[24,276,277],{},"Jump to frame"," 会带你到图形被绘制的那一帧。",[21,280,281,284],{},[24,282,283],{},"图形属性","：颜色和线宽。",[21,286,287,290,291,294],{},[24,288,289],{},"撤销","和 ",[24,292,293],{},"Clear all","（可撤销一次）。",[14,296,297],{"id":297},"分享一帧",[42,299,300,303],{},[24,301,302],{},"Export frame"," 会以视频的完整分辨率把当前帧连同你所有的绘制保存为图片，并打开分享面板，用来发给你的船员，或发布到 Dragonboat Hub。",[14,305,306],{"id":306},"给你的船员的点子",[18,308,309,318,327],{},[21,310,311,314,315,317],{},[24,312,313],{},"入水角度","：在桨叶入水的那一帧暂停，用",[24,316,194],{},"测量桨角。",[21,319,320,323,324,326],{},[24,321,322],{},"前伸幅度","：用船宽校准，然后用",[24,325,181],{},"测量每位划手向前伸多远。",[21,328,329,332],{},[24,330,331],{},"节奏","：逐帧步进，比较每一排什么时候入水。30 fps 下一帧是 33 ms。",{"title":334,"searchDepth":335,"depth":335,"links":336},"",2,[337,338,339,340,341,342,343,344],{"id":16,"depth":335,"text":16},{"id":61,"depth":335,"text":61},{"id":86,"depth":335,"text":86},{"id":138,"depth":335,"text":138},{"id":251,"depth":335,"text":252},{"id":266,"depth":335,"text":266},{"id":297,"depth":335,"text":297},{"id":306,"depth":335,"text":306},"逐帧查看训练视频，测量角度、距离和划桨节奏，手机、平板或电脑都可以。","md",[348,351,354,357,360],{"question":349,"answer":350},"我的视频会被上传吗？","不会。视频和分析都留在你的设备上。除非你导出一帧，否则不会上传或分享任何内容。",{"question":352,"answer":353},"为什么我的距离显示为像素？","因为你还没有校准。在已知长度的东西上使用 Calibrate，例如船的宽度，距离就会切换为真实单位。",{"question":355,"answer":356},"怎样和船员分享分析？","使用 Export frame：它会把当前帧连同你的绘制保存为图片，你可以发送或发布。分析本身仍然留在你的设备上。",{"question":358,"answer":359},"可以在电脑上使用视频分析吗？","可以，在平板和电脑上是视频分析标签页。在浏览器里，刷新页面后需要重新选择视频；你的测量结果会保留。",{"question":361,"answer":362},"帧号看起来不对，怎么办？","有些视频会报告错误的帧率。打开播放设置，设置成你的相机录制时使用的帧率。",{},true,"\u002Fzh\u002Fhelp\u002Fvideo-analysis",[],{"title":7,"description":345},"zh\u002Fhelp\u002Fvideo-analysis",[370],"training","2026-10-10","wjDnZODdUs9iUHhfSnC_6xWmeQak0irj4HCe9RG58s8",[374,377],{"path":375,"title":376},"\u002Fzh\u002Fhelp\u002Fchat","聊天与公告",{"path":378,"title":379},"\u002Fzh\u002Fhelp\u002Fhealth-sync","Apple 健康与 Health Connect",1791706340346]