전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제56권12호
  • /
  • Pages.2251-2256
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  • 2007
  • /
  • 1975-8359(pISSN)
  • /
  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

에러 피드백의 컨텍스트 기반 예측기법을 이용한 무손실 영상 압축에 관한 연구

A Study on the Lossless Image Compression using Context based Predictive Technique of Error Feedback

  • 추형석 (울산대 공대 전기전자공학부) ;
  • 박병수 (울산대 공대 전기전자공학부) ;
  • 안종구 (울산대 공대 전기전자공학부)
  • 발행 : 2007.12.01
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초록

In this paper, the wavelet transform based lossless image compression algorithm is proposed. The proposed algorithm transforms the input image using 9/7 ICFB and S+P filter, and eliminates the spacious correlation of the subband coefficients, applying the context modeling predictive technique based on the multi-resolution structure and the feedback of the prediction error. The prediction context exploits the subordination and direction property of the different level subband in the vertical, horizontal, and diagonal subband coefficients. The simulation result of the high frequency images such as PEPPERS, BOAT, and AIRPLANE shows that the proposed algorithm efficiently predicts the edge area of each multi-resolution subband.

키워드

참고문헌

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