Microsoft’s Xbox 360 Kinect hacks have been plentiful, but here is a very original one that is almost guaranteed to impress. A Japanese coder by the name of Takayuki Fukatsu posted a video showing Kinect's "optical camouflage" effect that he created with openFrameworks. He didn't explain how it works but it appears to be a filter that removes his body from the frame in real time and replacing it with the image behind, which would have been taken beforehand. The mismatch of the images near his outlines are a good indication its a before image being replaced over the top of the current one.