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:
May. 14, 2013
Filed:
Jul. 07, 2009
Zhigang Fan, Webster, NY (US);
Francis Kapo Tse, Rochester, NY (US);
Bingfeng Zhou, Beijing, CN;
Yadong Mu, Beijing, CN;
He Tao, Beijing, CN;
Zhigang Fan, Webster, NY (US);
Francis Kapo Tse, Rochester, NY (US);
Bingfeng Zhou, Beijing, CN;
Yadong Mu, Beijing, CN;
He Tao, Beijing, CN;
Xerox Corporation, Norwalk, CT (US);
Abstract
What is disclosed is a novel system and method for text vectorization for bitmap images with reduced artificial discontinuities. Dominant points are identified in a bitmap character image. An initial curve is fitted to edge points of the character image in a vicinity of a selected dominant point. A set of boundary parameters in a vicinity of the selected dominant point are estimated based upon the initial curve. The selected dominant point is then classified as one of a sharp dominant point and a smooth dominant point based upon the boundary parameters or alternatively upon predefined classifications produced by an optical character recognition process. Curves are fitted between the selected dominant point and adjacent dominant points. The fitted curves maintain the estimated boundary parameters in the vicinity of smooth dominant points. A vectorized representation of the text character image based upon the fitted curves is produced as output.