I played with it 7 years ago for a hackathon -- not to transform the video, but just to extract pulse data from a face cam. For that purpose, even without optimization, it did work fairly well, though when we went to demo it live, the frequency of the projector lamp interfered with detection. https://github.com/MegaByte/web-webcam-pulse-detector/tree/r... I did run across this company recently, which seems to be doing something similar: https://www.binah.ai/