JavaScript Computer Vision – detecting waves

I have a fun little problem in my current project. Given a video of a person, detect whether the person is waving at the camera.

This is an early prototype that should work on modern versions of Chrome and Firefox.

It’s not perfect and there are many little tweaks that could be done to remove some of the false positives it generates. Still,¬†10 years ago I’d never have guessed that one day we’d be prototyping¬†computer vision algorithms in JavaScript. Thanks Moore’s Law!