Head Movement Correction
Even in the best circumstances, it can be incredibly different to hold your head still while recording eye movements. For this reason, the full version of Eye Precision includes Head Movement Correction.
By marking a static point on the face, close to the eye, the app can track head movement and compensate the recorded eye movement, giving more accurate results.
Example of a stabilised result
Comparison non-stabilised version
I recommend using coloured stickers, positioned as close to the eye as possible. The marker must stay within the frame of the video at all times.
Head movement correction marked with a makeshift sticker