Browse > Article

Fast Mode Decision Algorithm Using Efficient Block Skip Techniques for H.264 P Slices  

Jo, Young-Sub (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Jeong, Je-Chang (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Abstract
In this paper, we propose a fast algorithm that can reduce the complexity for inter mode decision of the H.264 encoder. The main idea consists of two techniques. The first one is the technique early terminating mode decision process. We focused on the skip and $16{\times}16$ mode because these modes occupies the largest portion in most of sequences. The second one is the technique skipping unnecessary $8{\times}8$ modes. The time consumption caused by the $8{\times}8$ mode is very considerable. Therefore if we can extract the unnecessary $8{\times}8$ mode calculation well, a large amount of time can be saved in total encoding process. The experimental results show that the proposed algorithm can achieve up to 43% speed up ratio with insignificant PSNR loss. The increase of total bits encoded is also not noticeable.
Keywords
H.264; Fast Algorithm; Mode Decision; RD Optimization; Video Coding;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J.Ren, N. Kehtarnavaz, and M. Budagavi, "Computationally efficient mode selection in H.264/AVC video coding", IEEE trans. Consumer Electronics, Vol.54, No.2, pp.877-886, May, 2008.
2 B.-G. Kim, "Novel inter-mode decision algorithm based on macroblock (MB) tracking for the P-slice in H.264/AVC video coding," IEEE Trans. Circuits Syst. Video Technol., Vol.18, No.2, pp.273-279, Feb., 2008.   DOI
3 JVT reference software version JM 12.4 http://iphome.hhi.de/suehring/tml/download
4 D. Wu, F. Pan, K.-P. Lim, S. Wu, Z.-G. Li, X. Lin, S. Rahardja, and C.-C. Ko, "Fast intermode decision in H.264/AVC video coding," IEEE Trans. Circuits Syst. Video Technol., Vol.15, No.7, pp.953-958, Jul., 2005.   DOI
5 F. Pan, X. Lin, R. Susanto, K.-P. Lim, Z.-G. Li, G.-N. Feng, D.-J. Wu, and S. Wu, "Fast mode decision algorithm for intraprediction in H.264/AVC video coding," IEEE Trans. Circuits Syst. Video Technol., Vol.15, No.7, pp.813-822, Jul., 2005.
6 A.-C.-W. Yu, G.-R. Martin, and H.-C. Park, "Fast inter mode selection in the H.264/AVC standard using a hierarchical decision process," IEEE Trans. Circuits Syst. Video Technol., Vol.18, No.2, pp.186-195, Feb., 2008.
7 T. Wiegand, G. Sullivan, G. Bjonstegaard, and A. Luthra, "Overview of the H.264/AVC video coding standard," IEEE Trans. Circuits Syst. Video Technol., Vol.13, No.7, pp.560-576, Jul., 2003.
8 B. Zhan, B. Hou, and R. Sotudeh, "Temporalspatial correlation based mode decision algorithm for H.264/AVC encoder," in Proc. 4th IEEE DELTA 2008, pp.351-355.
9 T. Wiegand, H. Schwarz, A. Joch, F. Kossentini, and G. Sullivan, "Rate-constrained coder control and comparison of video coding standards," IEEE Trans. Circuits Syst. Video Technol., Vol.13, No.7, pp.688-703, Jul., 2003.   DOI   ScienceOn