I will try to use the lager checkerboard with better light condition. Really appreciate your suggestion.

Dear Scott,

Here is the session ID. I used the trial named Tb.

758bc67c-7be2-42e4-bbab-2c8feb755897

Thanks!

Hello, I was currently conducting 15m sprint data collection using OpenCap. I positioned the checkerboard at the 15m line and utilized two iPhones, each placed frontally with a 45-degree angle from the checkerboard. The gathered displacement data, specifically the step length of the last three steps...