Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 1998.06a
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- Pages.733-736
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- 1998
Content-based retrieval system using wavelet transform
웨이브렛 변환을 이용한 내용기반 검색 시스템
Abstract
In this paper, we propose a new method for content-based retrieval system using wavelet transform and correlation, which has were used in signal processing and image compressing. The matching method is used not perfect matching but similar matching. Used feature vector is the lowest frequency(LL) itself, energy value, and edge information of 4-layer, after computng a 4-layer 2-D fast wavelet transform on image. By the proosed algorithm, we got the result that was faste rand more accurate than the traditional algorithm. Because used feature vector was compressed 256:1 over original image, retrieval speed was highly improved. By using correlation, moving object with size variation was reterieved without additional feature information.
Keywords