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US Patent 7848576 Image matching method, image matching apparatus, and program

Patent 7848576 was granted and assigned to Sony on December, 2010 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
Sony
Sony
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7848576
Date of Patent
December 7, 2010
Patent Application Number
10567182
Date Filed
June 15, 2005
Patent Primary Examiner
‌
Daniel G Mariam
Patent abstract

To provide an image matching method, an image matching apparatus, and a program able to perform a matching images at a high accuracy. A Hough transform unit 15 performs a Hough transform processing to a registered image AIM and an image to be matched RIM, in detail, an image processing by which points in each image are transformed to a curved pattern and linear components in each image are transformed to a plurality of the overlapped curved-patterns, based on a distance ρ from a reference position to a shortest point in a straight line L passing through a point in the image and an angle θ between a straight line n0 passing though the reference position and the shortest point and a x-axis as a reference axis including the reference position, and generating a transformed image S1621 and a transformed image S1622. A judgment unit 164 performs a matching of the registered image AIM and the image to be matched RIM based on a degree of an overlap of the patterns in the transformed image S1621 and the transformed image S1622 and a matching or mismatching of the patterns in the same.

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