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:
Feb. 08, 2011
Filed:
Sep. 20, 2006
Xu-hua Liu, Los Angeles, CA (US);
Byung-tae OH, Los Angeles, CA (US);
Young-min Kwak, Gardena, CA (US);
Chung-chieh Kuo, Taipei, TW;
Ying-jieh Huang, Taipei County, TW;
Xu-Hua Liu, Los Angeles, CA (US);
Byung-Tae Oh, Los Angeles, CA (US);
Young-Min Kwak, Gardena, CA (US);
Chung-Chieh Kuo, Taipei, TW;
Ying-Jieh Huang, Taipei County, TW;
Primax Electronics Ltd., Neihu, Taipei, TW;
Abstract
A method for characterizing texture of areas within an image corresponding to monetary banknotes includes dividing the image into a plurality of sections; calculating a gray level for each section; selecting potential sections from the sections, the potential sections having gray levels within a predetermined range; selecting bill sections from the potential sections, the bill sections having pixels within a predefined color range and a predefined continuous color gradient range; generating a binary edge map according to gray levels of pixels within the bill sections; and calculating a texture value for each bill section according to the binary edge map.