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10 May 2012 Structured IR illumination for relative depth sensing in virtual interfaces
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Depth mapping or depth sensing has become a popular field, applied not only to automotive sensing for collision avoidance (radar) but also to gesture sensing for gaming and virtual interfaces (optical). Popular gesture sensing devices such as the Kinect from Microsoft's Xbox gaming device produce a full absolute depth map, which is in most cases not adapted to the task on hand (relative gesture sensing). We propose in this paper a new gesture sensing technique through structured IR illumination to provide a relative depth mapping rather than an absolute one, and this reducing the requirements on computing power and therefore enabling this technology for wearable computing such as see through display.
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Bernard Kress, Victorien Raulot, and Michel Grossman "Structured IR illumination for relative depth sensing in virtual interfaces", Proc. SPIE 8368, Photonic Applications for Aerospace, Transportation, and Harsh Environment III, 83680K (10 May 2012);

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