US Patent 7031525 Edge detection based on background change
Patent 7031525 was granted and assigned to Mitsubishi Electric Research Laboratories on April, 2006 by the United States Patent and Trademark Office.
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Patent abstract
A method detects edges of an object in a scene by first acquiring a static image of the scene when the scene is static, and a live image of the scene including the object. A reference image is constructed from the static image. Then, image gradients of the reference image are compared with image gradients of the live image to identify edges of the object in the live image.
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Patent Inventor Names
Paul Beardsley0
Date of Patent
April 18, 2006
0Patent Application Number
102108460
Date Filed
July 30, 2002
0Patent Primary Examiner
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US Patent 7031525 Edge detection based on background change
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