A texture thesaurus for browsing large aerial photographs

Wei-Ying Ma and B. S. Manjunath
Department of Electrical and Computer Engineering,
University of California, Santa Barbara, CA 93106-9560.
E-mail: wei [at] iplab.ece.ucsb.edu; manj [at] ece.ucsb.edu


A texture-based image retrieval system for browsing large-scale aerial photographs is presented. The salient components of this system include texture feature extraction, image segmentation and grouping, learning similarity measure, and a texture thesaurus model for fast search and indexing. The texture features are computed by filtering the image with a bank of Gabor filters. This is followed by a texture gradient computation to segment each large airphoto into homogeneous regions. A hybrid neural network algorithm is used to learn the visual similarity by clustering patterns in the feature space. With learning similarity, the retrieval performance improves significantly. Finally, a texture image thesaurus is created by combining the learning similarity algorithm with a hierarchical vector quantization scheme. This thesaurus facilitates the indexing process while maintaining a good retrieval performance. Experimental results demonstrate the robustness of the overall system in searching over a large collection of airphotos and in selecting a diverse collection of geographic features such as housing developments, parking lots, highways, and airports.
[PDF] [BibTex]
Wei-Ying Ma and B. S. Manjunath,
Journal of the American Society for Information Science, vol. 49, no. 7, pp. 633-48, Wiley for ASIS, May. 1998.
Node ID: 267 , DB ID: 63 , VRLID: 55 , Lab: VRL , Target: Journal
Subject: [Image Texture] « Look up more