I have an idea that I think could use this kind of technology. Basically, it's a light gun game that takes any video signal and superimposes effects on top of it, creating a primitive sort of augmented reality.
You could, for example, program it to recognize flesh tones and use it to shoot at anyone you see on your tv screen, and the computer would apply blood splatters and bullet wounds and whatnot. It would make CNN tolerable, at the very least.
