Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
권호 표지

Spatial Smoothing for Temporal Error Concealment

시간적 에러 은폐를 위한 공간적 스무딩

  • 김동욱 (전주대학교 정보기술컴퓨터공학부) ;
  • 김진태 (한서대학교 컴퓨터과학과)
  • Published : 2003.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we propose a new temporal error concealment method for video packet loss. Error concealment for each loss block is performed by temporal motion compensation and a spatial smoothing operation of boundary pixels between the compensated block and its surrounding blocks. In the simulation results, performance improvement for the proposed technique is on the average 2㏈ in comparison with conventional techniques.

본 논문에서는 비디오 패킷 손실을 위한 새로운 시간적 에러 은폐 기법을 제안한다. 각 손실 블록에 대한 에러 은폐는 시간적 움직임 보상을 바탕으로 보상된 블록과 주변 블록간의 경계에 대한 공간적 스무딩 동작에 의해 수행된다. 모의실험에서 제안된 기법은 기존의 기법들에 비해 약 2㏈의 화질 향상을 가져왔다.

Keywords

References

  1. S. S. Hemami and T. H. Meng, 'Transform coded image reconstruction exploiting interblock correlation,' IEEE trans. Image Processing, vol. 4, pp. 1023-1027, July 1995 https://doi.org/10.1109/83.392344
  2. W-J. Chu, J-J. Leou, 'Detection and concealment of transmission errors in H.261 images,' IEEE Trans. Circuits and System for Video Technology, vol. 8, no. 1, pp. 248-258, Feb. 1998
  3. K. W. Kang, S. H. Lee, and T. Kim, 'Recovery of coded video sequences from channel errors,' SPIE, vol 2501, pp. 19-27, 1995 https://doi.org/10.1117/12.206743
  4. M-J. Chen, L-G. Chen, and R-M. Weng, 'Error concealment of lost motion vectors with overlapped motion compensation,' IEEE Trans. Circuits and System for Video Technology, vol. 7, no. 3, pp. 560-563, June 1997 https://doi.org/10.1109/76.585936
  5. S. Shirani, F. Kossentini, R. Ward, 'Reconstruction over lossy networks,' Proceedings of IEEE ICIP'98, 1998, pp. 487-491