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:
Mar. 01, 2005
Filed:
Apr. 18, 2001
Toshiaki Kondo, Singapore, SG;
Toshiaki Kondo, Singapore, SG;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A technique for automatically extracting a region of interest from a set of a plurality of images includes a scheme exploiting a motion vector, and a scheme based on an active contour model. But these schemes suffer various problems (e.g., detection resolution and precision are low, resolutions in units of pixels cannot be obtained, versatility is poor, and so forth). To solve these problems, when initial contour information in an image sensed at reference time is input, a feature point selector selects a plurality of feature points from its contour line, and stores the connectivity between these feature points in a memory. A corresponding point seeker seeks a plurality of corresponding points, which respectively correspond to the plurality of selected feature points, from an image to be sought, which is sensed at another time, and the contour between the plurality of found corresponding points is extracted on the basis of the stored connectivity.