Wavelet-based Video Coding Scheme using Multi-resolution Motion Compensation

다중 해상도 움직임 보상을 이용하는 웨이브렛기반 동영상 부호화

  • 양창모 (전자부품연구소 인터넷미디어연구센터) ;
  • 이병기 (광주과학기술원 정보통신공학과) ;
  • 조위덕 (전자부품연구소 인터넷미디어연구센터) ;
  • 정하중 (전자부품연구소 인터넷미디어연구센터) ;
  • 호용성 (광주과학기술원 정보통신공학과)
  • Published : 2002.03.01

Abstract

In this paper. we propose a new video coding scheme with multi-resolution motion compensation and residual quantization. The main functional blocks of the proposed scheme include multi-level wavelet decomposition. motion estimation and motion compensation. raster scanning within each subband. formation of block trees and blocking partitioning. and adaptive arithmetic coding. Although the proposed ceding scheme is simple and requires low computational complexity, it produces bitstreams tilth good features. such as the embedded structure and SNR scalability. Experimental results demonstrate that the proposed coding scheme is quote competitive to and often outperforms other wavelet-based video coding schemes in the literature.

본 논문에서는 동영상을 효율적으로 부호화하기 위한 새로운 다중 해상도 움직임 보상방법과 잉여 양자화 방법을 제안한다. 본 논문에서 제안하는 동영상 부호화기는 다단계 웨이브렛 분해, 움직임 예측 및 움직임 보상. 대역내에서의 래스터 주사. 블록 Tree의 구성 및 블록 분할. 적응적 산술 부호화기로 구성된다. 제안된 동영상 부호화기는 단순하면서도 낮은 연산량을 필요로 하며. 임베디드 특성과 SNR 계위 부호화 특성과 같은 좋은 기능을 제공한다. 또한 기존에 제안되었던 웨이브렛 변환을 이용하는 동영상 부호화 방법과 비교하여 우수한 성능을 제공한다.

Keywords

References

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