Browse > Article

Fast Bitrate Reduction Transcoding using Probability-Based Block Mode Determination in H.264  

Kim, Dae-Yeon (School of Computer Engineering, Dept. of Internet Engineering, DMS Lab., Sejong University)
Lee, Yung-Lyul (School of Computer Engineering, Dept. of Internet Engineering, DMS Lab., Sejong University)
Publication Information
Journal of Broadcast Engineering / v.10, no.3, 2005 , pp. 348-356 More about this Journal
Abstract
In this paper, we propose a fast bitrate reduction transcoding method to convert a bitstream coded by H.264 into a lower bitrate H.264 bitstream. Block mode informations and motion vectors generated by H.264 decoder are used for probability-based block mode determination in the proposed transcoding method. And the motion vector reuse and motion vector refinement process are applied in the proposed transcoding. In the experiment results, the proposed methods achieves approximately 40 times improvement in computation complexity compared with the cascaded pixel domain transcoding, while the PSNR(Peak Signal to Noise Ratio) is degraded with only $0.1\~0.3$ dB.
Keywords
H.264; Transcoding; Block Mode Determination; Rate-Control;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, Study of Final Comitee Draft of Joint Video Specication (ITU-T Rec. H.264; ISO/IEC 14496-10 AVC) (JVT F-100), ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6, Dec. 2002
2 K. D. Seo and J. K. Kim,'Motion vector refinement for video downsampling in the DCT domain,' IEEE Signal processing letters, vol.9, pp.356-359, November 2002   DOI   ScienceOn
3 Zhang, Jijun;Perkis, Andrew;Georganas, Nicolas .'H.264/AVC and Transcoding for Multimedia Adaptation', In Proceedings of the 6th COST 276 WORKSHOP, Thessaloniki, Greece, 6-7 May 2004
4 Z. Li, F. Pan, G. Feng, K. Lim, X. Lin, S. Rahardja, New Rate Control Algorithm, JVT-E069, 5th Meeting: Geneva, Oct. 2002
5 Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, Reference Software to Commitee Draft JVT-F100 JM82, ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6
6 T. Wiegand, G. J. Sullivan, G. Bjontegaard, and A.Luthra, 'Overview of the H.264/AVC Video Coding Standard', IEEE Transactions on Circuits and Systems for Video Technology, Vol. 13, No. 7, July 2003
7 J. Xin, C. W. Lin, M. T. Sun 'Digital Video Transcoding', Proceedings of the IEEE, Vol.93 No.1,January 2005
8 Z. He, Y. K. Kim, Sanjit K. Mitra 'Low-Delay Rate Control for DCT Video Coding via -domain Source Modeling', IEEE Transactions on Circuits and Systems for Video Technology,Vol. 11, No. 8, pag. 928-940, Aug. 2001   DOI   ScienceOn
9 G.J. Sullivan and T. Wiegand: Rate-Distortion Optimization for Video Compression IEEE Signal Processing Magazine, Vol. 15, November 1998, pp. 74-90   DOI   ScienceOn
10 A. Vetro, C. Christopoulos, and H. Sun, 'Video Transcoding Architectures and Techniques: An Overview', IEEE Signal Processing Magazine, March 2003