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. 20, 2001
Filed:
Nov. 16, 1998
Wee Kheng Leow, Singapore, SG;
Seow Yong Lai, Singapore, SG;
National University of Singapore, Singapore, SG;
Abstract
A method and apparatus matches texture patterns in a way that is invariant to the intensities, scales, and orientations of the texture patterns. The texture matching apparatus includes a texture feature extractor, a feature transformer, and an image ranker. The texture feature extractor identifies regions in a plurality of stored images that contain homogeneous texture patterns that may vary in intensities, scales, and orientations, and extracts N-component texture feature vectors in these regions. The feature transformer maps the N-component feature vectors into a D-dimensional texture space that is invariant to texture intensity, scale, and orientation. The image ranker ranks the images according to the similarity between the texture patterns that they contain and the query texture measured in the D-dimensional invariant texture space, and the similarity between the N-component feature vectors of the texture patterns. The results of texture matching can be used by a content-based image retrieval system to display a list of images according to their similarity to the query texture.