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. 08, 2003
Filed:
Nov. 16, 1999
Dragutin Petkovic, Saratoga, CA (US);
Tanveer Fathima Syeda-Mahmood, Cupertino, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Colored surfaces are represented in an illumination-invariant and pose-invariant manner through a color code book. Patches of each color surface are represented, under well-chosen illumination conditions and other imaging variations, as clusters in an optimal color space. For each surface, the color code book entries represent its clusters' means, covariance matrices, eigen values and eigen vectors. In addition, a corresponding semantic label is given to each surface's color code book entry to simplify image processing operations such as region localization and recognition as well as indexing and querying of image databases.