Sprint timing built by an Olympian

As a track and field athlete training at the highest level, Sondre needed accurate timing for sprints and approach runs, but the options were either expensive laser gate systems with inconsistent trigger points or a coach with a stopwatch and human reaction time error. Neither was good enough.

He realized that the phone in everyone's pocket already had the hardware to solve this: a high frame rate camera, precise gyroscope, and enough processing power for real-time computer vision. So he built TrackSpeed: a timing system that uses frame-by-frame motion detection and sub-frame interpolation to deliver millisecond-accurate results, no extra equipment needed.