Thumb And ForeFinger Interface (TAFFI) is an innovative as well as simple algorithm problem solving method by manipulating the problem domain. Using a cheap USB camera attached to the PC, Andy Wilson of Microsoft Research has come up with an algorithm that allows the control of the computer with his hands held over the keyboard even without the need of a mouse or any other pointer or device. When he brings his thumb and forefinger together to make a round, the software identifies and works accordingly. Just check out the video, how the software works:
Via: gadgetopia
