Dynamic Control Algorithm of GOP Structure based on Picture Complexity

영상 복잡도에 기반한 GOP구조의 동적 제어 알고리즘

  • 문영득 (부산외대 정보과학대 컴퓨터전자공학과) ;
  • 최금수 (부산외대 정보과학대 컴퓨터전자공학과)
  • Published : 2004.04.01

Abstract

This paper propose a method that GOP structure based on the picture complexity change realtime adaptive without pre-analysis or time delay. Proposed algorithm calculates the complexity of pictures at first, and the ratio of the complexity( X$\sub$p/ /X$\sub$i/) between P picture and I picture is calculated. The suitable M value for the three picture select by comparing with predetermined threshold. Used bit and vbv_delay the value of GOP is calculated according to selected M. Experimental results show that the prediction error is reduce than the fixed GOP structure. Since the complexity distribution of the sequence is different, applied limits of threshold value is changed, also.

Keywords

References

  1. Akio Yoneyama, Y. Nakajima, H. Yanagihara, M. Sugano, 'MPEG Encoding Algorithm with Scene adaptive Dynamic GOP Structure', IEEE, pp.832-835, 1999
  2. Jiro Katto, 'mathematical analysis of MPEG compression capability and its application to rate control', ICIP-95 Vol.II, pp.555-558(Oct. 1995) https://doi.org/10.1109/ICIP.1995.537539
  3. J. W. Lee et al., 'Rate-Distortion Optimized Frame Type Selection for MPEG Encoding', IEEE Transaction on Circuit and its application to rate control', Vol.7, No.3 (jung 1997) https://doi.org/10.1109/76.585929
  4. 최금수, 정희태, 문영득, '복잡도를 기반한 적응적 GOP 구조 선택', 대한전기학회 하계학술대회 논문집, pp.2675-2677, 2001
  5. ISO/IEC-JTC1/SC29/WG11, 'Test Model 5 (Draft), 'MPEG93/NO0400 (1993)
  6. J .L. Mitchell, W. B. Pennebaker, C. E. Fogg and D. J. LeGall, 'MPEG Video Compression Standard', Digital Multimedia Standards Series, Chapman & Hall, New York, NY, 1997. pp.179-181
  7. ISO/IEC 13818-1: 'Information Technology Generic coding of Moving Picture and Associated Audio'. Committee Draft, Mar.1994
  8. ISO/IEC 13818-2, Information technology - Generic coding of moving picture and associated audio information - Part 2: Video', International Standard (1995)
  9. Y. Yu, J. Zhou, Y. Wang, 'A Fast Effective Scene Change Detection and AdaptiveRate Control Algorithm', Proc. ICIP'98,ICIP 1998
  10. M. Lee, S. Kwon, J. Kim, 'A Scene Adaptive Bitrate Control Method in MPEG Video Coding', SPIE VCIP, Vol.3024,pp.1416,1998
  11. N. Zhang, C. Wu, 'Augmenting STM5 Bit Rate Ciontrol Scheme for Improving Coding Quality of MPEG2 Video Encoders', Proc. ISCAS'97,Vol.2, pp.1297-1300, 1997 https://doi.org/10.1109/ISCAS.1997.622084
  12. Ooi et al., 'An MPEG-2 Encoder Architecture based on a Single-Chip Dedicated LSI with a Control MPU', ICASSP'97, Vol. 1, pp.599-602 (Apr.1997) https://doi.org/10.1109/ICASSP.1997.599839
  13. B. G. Haskell, A. Puri, and A. N. Netravali, 'Digital Video : An Introduction to MPEG2', Chapman & Hall, 1996
  14. L. Teixera, H. Rebeiro, 'Analysis of a Two Step MPEG Video System', Proc. ICIP'97, Vol.1, pp. 350-353, 1997 https://doi.org/10.1109/ICIP.1997.647778