The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2013
Filed:
May. 12, 2010
Hirotaka Shiiyama, Yokohama, JP;
Hidetomo Sohma, Yokohama, JP;
Koichi Magai, Tokyo, JP;
Masahiro Matsushita, Yokohama, JP;
Hirotaka Shiiyama, Yokohama, JP;
Hidetomo Sohma, Yokohama, JP;
Koichi Magai, Tokyo, JP;
Masahiro Matsushita, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image search apparatus extracts a symmetric partial image based on acquired pairs of feature points, and divides the partial image at a symmetry axis of the partial image to decide two partial areas, as a first area and a second area based on the tendency of image features in the partial image. In determining the similarity between the query image and a comparison destination image, a coordinate transformation coefficient for a coordinate transformation process is set based on pairs of feature points extracted from the partial area decided as the first area of the two images, the coordinate transformation process using the coordinate transformation coefficient is applied to the pairs of feature points extracted from areas including areas other than the first area of the two images, and coordinates of the pairs of feature points after the coordinate transformation process are compared.