Projecting human body scaned by an infrared camera(Kinect)

murray's icon

I am curious how to scan human whole body and then project it onto a screen. The scanned human body looks like a shadow (figure).
Also the scanning way would be used an infrared camera (Kinect) in order to take place this projection in dark place.
For instance, when I am dancing against a camera, it should be projecting like that! Watch this youtube below.
http://www.youtube.com/watch?v=3UYAelq6OeM

Please anyone helps me how to overcome!

Cheers

MJ's icon

jit.freenect.grab and use jit.op to remove the background