That's an interesting point. The problem here would be that video input would not provide accel+gryo motion information, which is what the network needs in orde

That's an interesting point. The problem here would be that video input would not provide accel+gryo motion information, which is what the network needs in order to learn. If we instead simply used video information to track exercises the problem would be scaling that to consumers. They'd require an external camera to watch them. But the idea of using Mechanical Turk is quite smart. It'd help me get varied form - especially if I can get them to wear a band/phone that has the sensors.