TED sixth sense technology from MIT Medai Lab

I didn't know much about what TED is but the a technology shown in this video is very fun. A MIT student in the media lab came up with a new human computer interaction system called "sixth sense." The idea is wearing a device consisting of a projector and a webcam and a cellphone. The cellphone is used to get information from the internet and the webcam is used to recognize finger gesture of a person wearing this device and get a digital image of scene in front of the person. The Projector is used to project a variety of things such as characters, images, buttons and so on. The webcam also recognize the image projected. My favorite use of this system is creating a watch on user's wrist and erasing it by finger gesture. The technology used in this system is not particularly new. However, creating and showing a novel concept deserves applause, I think. And I re-realized the importance of the way to show our ideas. Design is also an important factor, I think. That's MIT.