一种基于变换系数拉普拉斯分布的HEVC码率控制算法

司俊俊, 马思伟, 王诗淇, 高文

doi:10.3969/j.issn.1007-2861.2013.03.003

上海大学学报(自然科学版) >

2013 , Vol. 19 >Issue 3: 229 - 234

DOI: https://doi.org/10.3969/j.issn.1007-2861.2013.03.003

音视频编码标准

一种基于变换系数拉普拉斯分布的HEVC码率控制算法

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北京大学数字媒体所, 北京 100871

收稿日期: 2013-03-19

网络出版日期: 2013-06-30

基金资助

国家自然科学基金资助项目(61121002, 61103088); 国家高技术研究发展计划(863计划)资助项目(2012AA011505); 国家科技支撑计划重点资助项目(2011BAH08B01)

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Laplace Distribution Based Rate Control Algorithm for HEVC

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Institute of Digital Media, Peking University, Beijing 100871, China

Received date: 2013-03-19

Online published: 2013-06-30

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摘要

基于变换后残差信号的拉普拉斯分布特性, 提出了一种面向高效视频编码(high efficiency video coding, HEVC) 的编码树单元(coding tree unit, CTU) 级码率控制算法. 首先, 研究了量化参数、拉普拉斯分布参数以及拉格朗日乘数之间的关系, 并建立了模型. 然后, 根据每个CTU 的变换残差的拉普拉斯分布特性动态调整其量化参数, 以获取高效的编码性能. 此外, 通过与帧级码率控制算法相结合, 获得了更加精确的码率控制效果以及良好的编码性能. 实验结果表明, 所提出的码率控制算法可以获得比HEVC标准提案JCTVC-H0213和JCTVC-K0103中所述码率控制算法更优的编码性能.

关键词： 高效视频编码; 拉普拉斯分布; 码率控制

本文引用格式

司俊俊, 马思伟, 王诗淇, 高文 . 一种基于变换系数拉普拉斯分布的HEVC码率控制算法[J]. 上海大学学报(自然科学版), 2013 , 19(3) : 229 -234 . DOI: 10.3969/j.issn.1007-2861.2013.03.003

Abstract

This paper proposes a rate control scheme on the level of coding tree unit (CTU) based on the Laplace distribution modeling of the transformed residuals for high efficiency video coding (HEVC). At first the relationship between the optimal quantization parameter, the Laplace parameter and the Lagrange multiplier is established. Based on this relationship, the quantization parameter for each CTU is dynamically adjusted according to its distribution properties of the transformed residual to achieve high coding performance. Moreover,this paper incorporates this scheme within a rate control algorithm on the frame level to produce accurate rate control as well as high coding performance. Experimental results show that the proposed rate control scheme achieves accurate control as well as better coding performance than both the rate control schemes in the HEVC proposals JCTVC-H0213 and JCTVC-K0103.

Key words： high efficiency video coding (HEVC); Laplace distribution; rate control

参考文献

[1] Test Model 5 [EB/OL]. [2013-03-19]. http://www.mpeg.org/MPEG/MSSG/tm5/.

[2] Ribas-Corbera J, Lei S M. Rate control in DCT video coding for low-delay communications [J]. IEEE Trans Circuits Syst Video Technol, 1999, 9: 172-185.

[3] Li Z G, Pan F, Pang K. Adaptive basic unit layer rate control for JVT [C]// Joint Video Team of ISO/IEC and ITU 7th Meeting, JVT-G012. 2003: 1-33.

[4] Xu Z, Jiang G, Yu M, et al. A novel rate control method for AVS standard [C]// IEEE International Conference on Communication Technology. 2008: 657-660.

[5] Zhang Q, Fang Y, Wang C. A novel rate control algorithm for AVS video coding [C]// International Conference on Wireless Communications, Networking and Mobile Computing. 2007: 2900-2902.

[6] Sullivan G J, Ohm J R. Recent developments in standardization of high efficiency video coding (HEVC) [C]// Proceedings 33rd SPIE Applications of Digital Image Processing ⅩⅩⅩⅢ. 2010: 7798-7830.

[7] Choi H, Nam J, Yoo J, et al. Rate control based on unified RQ model for HEVC [C]//ITU-T SG16 Contribution, JCTVC-H0213. 2012: 1-13.

[8] Li B, Li H, Li L, et al. Rate control by R-lambda model for HEVC [C]// ITU-T SG16 Contribution, JCTVC-K0103. 2012: 1-5.

[9] Si J J, Ma S W, Gao W, et al. Adaptive rate control for HEVC [C]// ITU-T SG16 Contribution, JCTVCI0433. 2012: 1-8.

[10] Si J J, Ma S W, Zhang X F, et al. Adaptive rate control for high efficiency video coding [C]//Proceedings of SPIE Conference on Visual Communications and Image Processing. 2012: 1-6.

[11] Altunbasak Y, Kamaci N. An analysis of the DCT coefficient distribution with the h.264 video coder [C]//Proc IEEE Int Conf Acoustics Speech and Signal Processing. 2004: 177-180.

[12] Dong J, Ling N. On model parameter estimation for H.264/AVC rate control [C]//Proc IEEE Int Symp Circuits Syst. 2007: 289-292.

[13] Zhao X, Sun J, Ma S W, et al. Novel statistical modeling, analysis and implementation of rate-distortion estimation for h.264/avc coders [J]. IEEE Transactions on Circuits and Systems for Video Technology, 2010, 20: 647-660.

[14] Ma S W, Si J J, Wang S S. A study on the rate distortion modeling for high efficiency video coding [C]// IEEE International Conference on Image Processing. 2012: 181-184.

[15] Bossen F. HM 8 common test conditions and software reference configurations [C]// ITU-T SG16 Contribution, JCTVC-J1100. 2012: 1-3.

[16] ISO/IEC JTC1/SC29/WG11, ITU-T Q6/16. Joint call for proposals on video compression technology [R]. 2010.

[17] Bjontegaard G. Calculation of average PSNR differences between RD-curves [C]// ITU-T Q.6/SG16 VCEG, 13th Meeting. 2001: 1-4.

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