A 3D Gesture Control System called LEAP by a San Francisco startup called Leap Motion is best available in market (200 times more accurate than anything else) and cheaper too (expected to cost $70)!
Navigating an operating system or browsing Web pages with the flick of a finger
Finger-pinching to zoom in on maps
Letting engineers interact with a 3D model of clay
Precision drawing in either two- or three-dimensions
Manipulating complex 3D data visualizations
Playing games, including those that require very “fast-twitch” control
Signing digital documents by writing in air
The device monitors a space four cubic feet in size, and can deftly track individual finger tips, the whole hand, or inanimate objects. Check out the video to see exactly how it handles touch-style gestures, like pinch-to-zoom and others. It is simply amazing!
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