Character Object tracking

ok, ive recently started using object tracking and i was wondering whether you can use a live video stream being recorded using a webcam rather than filming, uploading then tracking. does anyone know if this can be done?

short answer: with the current camera tracker: no.
but you could have a look at the bloop project. you need a kinect though.
there were also some experiments using just a webcam and motion, but i can’t remember where.