대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

부대역 부호화를 이용한 동영상 압축 알고리즘

A moving image compression algorithm using subband coding

  • 장세봉 (경남대학교 전자공학과 컴퓨터 비젼 연구실) ;
  • 최재윤 (경남대학교 전자공학과 컴퓨터 비젼 연구실) ;
  • 김태효 (경남대학교 전자공학과 컴퓨터 비젼 연구실)
  • 발행 : 1998.06.01
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초록

This paper proposes a moving image compression algorithm using subband coding that divides and processes the differential image of each moving image frame into subband frequency. This method decomposes the original image with each subband and performs DCT. The moving blocks are detected from each of wubband using threshold value which is select from the variance of difference between frames. then they are performed SBDCT and huffman coding in order to reduce the data. As the result of simulation, we confirmed that this method improved the blocking effect of reconstructed image in low bit rate.

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