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IEICE Transactions on Information and Systems 2007 E90-D(5):872-876; doi:10.1093/ietisy/e90-d.5.872
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Copyright © 2007 The Institute of Electronics, Information and Communication Engineers

Regular Section -- Letters -- Image Processing and Video Processing

Frame-Level {rho}-Domain R-D Optimization in H.264

Yutao DONG1, Xiangzhong FANG1 and Jing YANG1

1 The authors are with the Institute of Image Communication and Information Processing, Shanghai Jiao Tong University, Shanghai, 200240, P.R.C. E-mail: ytdong{at}sjtu.edu.cn

The frame-level R-D optimization in H.264 is very important in video storage scenarios. Among all of the sub-optimal algorithms, a greedy iteration algorithm (GIA) can best lower the computational complexity of frame-level R-D optimization. In order to further lower the computational complexity, a {rho}-domain frame-level R-D optimization algorithm is proposed in this letter. Different from GIA, every frame's rate and distortion can be estimated accurately without actual encoding in our proposed algorithm. Simulation results show that our proposed algorithm can lower the computational complexity greatly with negligible variation in peak signal-to-noise ratio (PSNR) compared with GIA.

Key Words: {rho}-domain, R-D optimization, H.264, frame-level

Manuscript received September 21, 2006. Manuscript revised November 19, 2006.

References

[1] T. Wiegand and G. Sullivan, Draft ITU-T Recommendation and Final Draft International Standard of Joint Video Specification (ITU-T Rec. H.264 — ISO/IEC 14496-10 AVC), JVT-G050, 2003.

[2] G. Sullivan and T. Wiegand, "R-D optimization for video compression," IEEE Signal Process. Mag., vol.15, pp.74–90, 1998.

[3] 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, 2003.

[4] S. Liu and C.J. Kuo, "Joint temporal-spatial bit allocation for video coding with dependency," IEEE Trans. Circuits Syst. Video Technol., vol.15, no.1, pp.15–26, 2005.

[5] Z. He and S.K. Mitra, "Optimum bit allocation and accurate rate control for video coding via {rho}-domain source modeling," IEEE Trans. Circuits Syst. Video Technol., vol.12, no.10, pp.840–849, 2002.


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This Article
Right arrow Abstract Freely available
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
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Right arrow Add to My Personal Archive
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Right arrow Articles by DONG, Y.
Right arrow Articles by YANG, J.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?