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. 18, 2004
Filed:
Jun. 19, 2000
Applicant:
Inventors:
Xiangrong Chen, Beijing, CN;
Hong-Jiang Zhang, Beijing, CN;
Assignee:
Microsoft Corporation, Redmond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/46 ;
U.S. Cl.
CPC ...
G06K 9/46 ;
Abstract
Shape suppression is used to identify areas of images that include particular shapes. According to one embodiment, a Vector Quantization (VQ)-based shape classifier is designed to identify the vertical edges of a set of shapes (e.g., English letters and numbers). A shape suppression filter is applied to the candidate areas, which are identified from a vertical edge map according to the edge density, to remove the vertical edges which are not classified as characteristic of shapes. Areas with high enough edge density after the filtering are identified as potential areas of the image that include one or more of the set of shapes.