techspotlight:

A new prototype can transform a notebook into a notebook computer, a wall into an interactive display, and the palm of your hand into a smart phone display. In fact, researchers at Microsoft and Carnegie Mellon University say their new shoulder-mounted device, called OmniTouch, can turn any nearby surface into an ad hoc interactive touch screen. OmniTouch works by bringing together a miniature projector and an infrared depth camera, similar to the kind used in Microsoft’s Kinect game console, to create a shoulder-worn system designed to interface with mobile devices such as smart phones, says co-inventor Chris Harrison, a postgraduate researcher at Carnegie Mellon’s Human-Computer Interaction Institute in Pittsburgh and a former intern at Microsoft Research. Instead of relying on screens, buttons, or keys, the system monitors the user’s environment for any available surfaces and projects an interactive display onto one or more of them. OmniTouch does this automatically, using the depth information provided by the camera to build a 3-D model of the environment, says Harrison. The camera acquires depth information about the scene by emitting a patterned beam of infrared light and using the reflections to calculate where surfaces are in the room. This eliminates the need for external calibration markers. The system rebuilds the model dynamically as the user or the surface moves—for example, the position of a hand or the angle or orientation of a book—so the size, shape, and position of these projections match those of the improvised display surfaces, he says. OmniTouch “figures out what’s in front you and fits everything on to it.” (via Kinect Turns Any Surface Into a Touch Screen  - Technology Review)

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