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:
Jun. 10, 2003
Filed:
Oct. 26, 1999
Applicant:
Inventors:
Mauritius Seeger, Royston, GB;
Christopher R. Dance, Trumpington, GB;
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/34 ;
U.S. Cl.
CPC ...
G06K 9/34 ;
Abstract
A thresholding technique for generating a background image of a pixmap image is described. For one embodiment of the present invention, background image is used to generate a background threshold surface for thresholding a pixmap image. For another embodiment of the present invention, the background image is used to normalize the background of the pixmap image. In yet another embodiment of the present invention, the background image is used as input for other image processing algorithms such as extracting features from a grey-scale image for character recognition.