Television – Special applications – Object or scene measurement
Patent
1995-04-10
1997-11-04
Faile, Andrew
Television
Special applications
Object or scene measurement
348119, 382106, 382153, H04N 718, H04N 947
Patent
active
056845316
ABSTRACT:
A laser-directed ranging system for use in telerobotics applications and other applications involving physically handicapped individuals. The ranging system includes a left and right video camera mounted on a camera platform, and a remotely positioned operator. The position of the camera platform is controlled by three servo motors to orient the roll axis, pitch axis and yaw axis of the video cameras, based upon an operator input such as head motion. A laser is provided between the left and right video camera and is directed by the user to point to a target device. The images produced by the left and right video cameras are processed to eliminate all background images except for the spot created by the laser. This processing is performed by creating a digital image of the target prior to illumination by the laser, and then eliminating common pixels from the subsequent digital image which includes the laser spot. The horizontal disparity between the two processed images is calculated for use in a stereometric ranging analysis from which range is determined.
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Cox Brian J.
Li Larry C.
Boccio Vincent F.
Cate James M.
Faile Andrew
The United States of America as represented by the Administrator
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