Image retrieval based on index compressed vector quantization

被引:3
作者
Eftekhari-Moghadm, AM [1 ]
Shanbehzadeh, J
Mahmoudi, F
Soltanian-Zadeh, H
机构
[1] Iran Telecommun Res Ctr, Tehran, Iran
[2] Tarbiat Moallem Univ, Dept Comp Engn, Tehran, Iran
[3] Univ Tehran, Dept Elect & Comp Engn, Tehran 14174, Iran
[4] Henry Ford Hlth Syst, Dept Radiol, Detroit, MI USA
关键词
image retrieval; image indexing; index-compressed VQ; region correlation; compressed domain;
D O I
10.1016/S0031-3203(03)00172-9
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Increased amount of visual data in several applications necessitates content-based image retrieval. Since most of visual data is stored in compressed form, it is crucial to develop indexing techniques for searching images based on their content in compressed form. Therefore, it is desirable to explore image compression techniques with capability of describing image content in compressed form. Vector Quantization (VQ) is a compression scheme that exploits intra-block correlation and image correlation reflects image content, hence VQ is a suitable compression technique for compressed domain image retrieval. This paper introduces a novel indexing scheme for compressed domain image databases based on indices generated from IC-VQ. The proposed scheme extracts image features based on relationship between indices of IC-VQ compressed images. This relationship detects contiguous regions of compressed image based on inter- and intra-block correlation. Experimental results show effectiveness superiority of the new scheme compared to VQ and color-based schemes. (C) 2003 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:2635 / 2647
页数:13
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