Method for video-based nose location tracking and hands-free...

Details Method for video-based nose location tracking and hands-free... Method for video-based nose location tracking and hands-free...

H - Electricity

04

N

H04N 5/232 (2006.01) G06F 3/00 (2006.01) G06F 3/033 (2006.01) G06K 9/00 (2006.01) G06T 7/60 (2006.01)

Patent

CA 2395886

A method for tracking the location of the tip of the nose with a video camera, and a hands-free computer input device based thereon have been described. According to this invention, a convex shape such as the shape of the tip of the nose, is a robust object suitable for precise and smooth location tracking purposes. The disclosed method and apparatus are substantially invariant to changes in head pose, user preferred seating distances and brightness of the lighting conditions. The location of the nose can be tracked with pixel and sub-pixel accuracy.

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