秒表摄像机 / StopwatchCamera vs SprintLens

Professional running timer camera app combining Augmented Reality (AR) and human pose recognition technology to provide precise automatic lap timing and video recording for track & field and road running. Key Features: • HD Video Recording — 1080p HD recording with millisecond-precision synchronized timer and real-time timestamp overlay • AR Virtual Finish Line — ARKit-powered 3D spatial anchoring; simply drag to mark the exact finish line position with sub-centimeter accuracy • Auto Lap with Person Tracking — Vision-based full-body pose tracking engine automatically records lap times and finish times as athletes cross the line • Dual Detection Engine — Normal mode (multi-keypoint fallback: ankle -> knee -> hip -> torso) for daily training; Sprint mode (hip-based with sub-frame interpolation) optimized for 100m dashes • Direction Filter — Both / left-to-right / right-to-left crossing directions to match any track layout • Professional Timer — Unlimited lap splits with independent timing and automatic differential calculation • Data Export — One-tap CSV export for in-depth analysis on your computer • Time Watermark — Real-time timing overlay burned into the video for clear post-race review • History Records — Complete session archive with video playback and quick jump to any lap moment • Multi-Language — English, 简体中文, 繁體中文 Use Cases: • Track sprints — Precise finish line timing and HD video capture for 100m, 200m, 400m • Track middle/long distance — Automatic lap recording without manual stopwatch operation • Road running — Split timing and pace analysis for marathons and trail running • Running races — Automatic finish line detection with high-definition photo-finish capture

SprintLens is a photo finish timing app designed to measure times with high accuracy using just two smartphones. It is ideal for track and field, swimming, and other timed sports. Perfect for team managers, coaches, and club advisors! As a runner myself, I created this app from the perspective of athletes and team managers who want precise and flexible timing tools. Place one smartphone at the start and another at the finish. SprintLens combines the start signal with high-frame-rate video recorded at the finish, allowing you to review the exact finish moment frame by frame. It is designed to make timing more accurate and easier to understand in situations where stopping a manual stopwatch is not enough, such as sprints, swimming races, time trials, practice sessions, and school club activities. 【Key Features】 ・Measure times using two smartphones placed at the start and finish ・Timing linked with the start signal ・High-frame-rate video recording at the finish ・Frame-by-frame video review to determine the finish time ・Useful for sprints, 100m races, time trials, club activities, and practice sessions ・Create a timing setup using only smartphones, without dedicated photo finish equipment 【Recommended For】 ・Track and field and swimming practice ・Accurate timing for 100m, 200m, hurdles, and other short-distance events ・Recording practice results for teams and school clubs ・Situations where manual stopwatch timing is difficult ・Reviewing the exact finish moment on video SprintLens is designed to help you check the time from start to finish using video and synchronized timing data. ※Timing accuracy may vary depending on the device, frame rate, network environment, and recording conditions. ※This app is not guaranteed to replace official photo finish timing systems used in sanctioned competitions.