With kinect you have the skeleton tracking and a lot of things, wich are great. But maybe you have more latency than a webcam(or not?), so if you want really fast reaction and not a complex visual feedback, a fast camera should work better, ie changquan taolu
this video looks like differencekeying - not skeleton-tracking. Is anywhere an add-on for human skeleton-tracking via webcam? …doubtful that…think not.
eyesweb does some bodytracking. but compared to kinect it’s much worst… it requires always a filled white or black background to work and its 2d only(it doesnt understand if you turn on yourself…)