Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Content-based retrieval system using wavelet transform

웨이브렛 변환을 이용한 내용기반 검색 시스템

  • 반가운 (전북대학교 공과대학 컴퓨터공학과 영상처리 연구실) ;
  • 유기형 (전북대학교 공과대학 컴퓨터공학과 영상처리 연구실) ;
  • 박정호 (전북대학교 공과대학 컴퓨터공학과 영상처리 연구실) ;
  • 최재호 (전북대학교 공과대학 컴퓨터공학과 영상처리 연구실) ;
  • 곽훈성 (전북대학교 공과대학 컴퓨터공학과 영상처리 연구실)
  • Published : 1998.06.01
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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.

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