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:
Jul. 22, 2014
Filed:
Aug. 24, 2011
Hiroshi Oto, Yokohama, JP;
Hiroshi Oto, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Function approximation performed when a raster image is converted into a vector image is performed in a simple manner with high accuracy, without using feedback. When anchor points are extracted from a coordinate point sequence obtained from the raster image, and function approximation is performed on the coordinate point sequence between anchor points, an appropriate point among coordinate points defined in a unit approximation section that is partitioned by anchor points is selected, and after setting the direction of the corresponding coordinate point as a tangential direction, correction is performed such that the position of a control point obtained from a tangent line does not intersect another control point.