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

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

Error Resilience Method of MPEG-2 Header Parameters by using LSB Coding for Robust DTV Video Transmission

견실한 DTV 영상 전송을 위해 LSB 부호화를 이용한 MPEG-2 헤러 정보의 오류 복원 방법

  • Published : 2005.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

MPEG-2 achieves high compression radio, by exploiting the temporal and spatial correlations in real image sequence, using the motion compensated prediction and the transform coding, respectively. However, as the image sequence is more highly compressed, the encoded bitstream becomes more vulnerable to transmission error over the noisy channels. Furthermore, er개rs in the headers are fatal to decoding processes, because the header parameters in the video coding standard include a lot of important information connected to the syntax elements, fables, and decoding process. In this paper, we propose a new error resilience method using LSB coding for header parameters in MPEG-2 coded video transmissions. The experimental results for football and susie video sequence demonstrate that the proposed error resilience method for header parameters in MPEG-2 bitstream has good performance.

MPEG-2로 부호화 된 영상에서 발생하는 전송 오류는 화질의 열화를 가져오고, 시공간적으로 오류를 전파시킨다. 특히 비디오 비트열에서 헤더 정보의 오류는 복호화 과정 전체에 영향을 미치므로 데이터 정보의 오류와 달리 전체 영상에 심각한 화질의 열화를 일으킬 수 있다. 따라서 헤더 정보에서의 오류를 복원하는 것은 데이터 정보에서 오류를 복원하는 것보다 더 중요하다. 본 논문에서는 LSB(least significant bit) 부호화를 이용하여 헤더 정보를 양자화 된 DCT(discrete cosine transform) 계수에 반복적으로 삽입하여 전송함으로써 MPEG-2의 신택스 구조 그대로 유지하면서 헤더 정보의 오류를 복원할 수 있는 방법을 제안한다.

Keywords

References

  1. Yao Wang, Stephan Wenger, Jiangtao Wen, Aggelos K. Katsaggelos, 'Error Resilient for Video Coding Techniques', IEEE Signal Processing Magazine, Vol. 17, Issue 4, pp 61-82, Jul. 2000 https://doi.org/10.1109/79.855913
  2. Chang-Su Kim, Sang-Uk Lee, 'Multiple Description Coding of Motion Fields for Robust Video Transmission', IEEE Trans. on Circuit and Systems for Video Technology, Vol. 11, No.9, pp 999-1010, Sep. 2001 https://doi.org/10.1109/76.946517
  3. Jennifer L. H. Webb, 'Efficient Table Access for Reversible Variable Length Decoding', IEEE Trans. on Circuit and Systems for Video Technology, Vol. 11, No.8, pp 981-985, Aug. 2001 https://doi.org/10.1109/76.937449
  4. Stephan Wenger, Gerd Knorr, Jorg Ott, Faouzi Kossentini, 'Error resilience Support in H.263+', IEEE Trans. on Circuit and Systems for Video Technology, Vol. 8, No.7, pp 867-877, Nov. 1998 https://doi.org/10.1109/76.735382
  5. Shinfeng D. Lin and Chin-Feng Chen, 'A Robust DCT-based Watermarking for Copyright Protection', IEEE Trans. on Consumer Electronics, Vol. 46, No. 3, pp 415-421, Aug. 2000 https://doi.org/10.1109/30.883387
  6. Wen-Nung Lie, Li Chun Chang, 'Data Hiding in Images with Adaptive Numbers of Least Significant Bits Based on The Human Visual System', Proc. ICIP 99, Vol. 1, pp 286 -290, 1999
  7. C. T. Chen, 'Error detection and concealment with an unsupervised MPEG2 video decoder', Journal of Visual Communication and Image Representation, Vol. 6, No.3, pp. 265-279, Sep. 1995 https://doi.org/10.1006/jvci.1995.1023
  8. F. Bartolini, A. Manetti, A. Piva, M. Barni, 'A Data Hiding Approach for Correcting Errors in H.263 Video Transmitted over a Noisy Channel', Proc. 2001 IEEE Fourth Workshop, pp. 65-70, 2001