The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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An image sequence coding using edge classified finite state vector quantization

윤관선 분류 유한상태 벡터 양자화를 이용한 영상 시퀀스 부호화

  • 김응성 (성균관대학교 전자공학과) ;
  • 이근영 (성균관대학교 전자공학과)
  • Published : 1998.09.01
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Abstract

In this paper, we propose a new edge based finite state vector quantization method having better performance than conventional side-match finite state vector quantization. In our proposed scheme, each dCT transformed block is classified to 17 classes according to edge types. Each class has a different codebook based on its characteristis. Encoder classified each block to motion block or stationary block and constructed a merging map by using edge and motion information, and sent to decoder. We controled amoutn of bing bits transmitted with selecting modes accoridng to bandwidth of transmitting channel. Compared with conventional algorithms, H.263 and H.261 at low bit rate, our proposed algorithm shows better picture quality and good performance.

Keywords

References

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