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. 01, 2014
Filed:
Sep. 27, 2011
Yuichi Tsunematsu, Kowloon, HK;
Yuichi Tsunematsu, Kowloon, HK;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus comprises: a contour extraction unit configured to extract contours of color regions, each of which includes continuous pixels having the same pixel value, in image data; an intersection detection unit configured to detect, as an intersection, a point in each of contours extracted by the contour extraction unit; a division boundary line storage unit configured to store, in association with a contour in which the intersection is detected by the intersection detection unit, contours divided at the intersection as boundary lines; a non-division boundary line storage unit configured to store, in association with a contour in which the intersection is not detected by the intersection detection unit, the contour as a boundary line without dividing the contour; a function approximation unit configured to execute function approximation for each of boundary lines stored by the division boundary line storage unit and the non-division boundary line storage unit.