I mean, the site is pretty blatant viral marketing for both his drop-shipped-hats-from-china side hustle and (I'm going to go out on a wild limb here and guess) his employer's ML-dataset-management-related startup.
I wish cool stuff like this wasn't always sullied by the slimy feeling from it only being done to draw attention to some startup sitting smack in the middle of the trendiest buzzwords of the month.
OpenCV was not the "AI" here, the "AI" was a computer vision model trained at the roboflow website that he mentioned multiple times and that he used in the line commented with "# Directly pass the frames to the Roboflow model".