At the Gym i go to, they have a body scanning set up that lets you know information like BMR, weight etc. This setup includes a spinning platform that im assuming calculates weight and BRM and then theres a kinect that scans you as the platform spins. The result is a 3-d model of the body with measurements of every area. It would be cool to know how they tie in to the hardware of the kinect (is there a software that needs to be used?)
