可伸缩视频编码中基于部分解码的率失真优化

黄爱爱; 陈耀武

doi:10.3788/OPE.20111909.2170

您当前的位置：

首页 >

文章列表页 >

可伸缩视频编码中基于部分解码的率失真优化

信息科学 | 更新时间：2020-08-12

- 可伸缩视频编码中基于部分解码的率失真优化
- Rate distortion optimization based on partial decoding for scalable video coding
- 光学精密工程 2011年19卷第9期页码：2170-2176
- 作者机构：
  
  浙江大学数字技术及仪器研究所,浙江杭州,310027
- 作者简介：
- 基金信息：
  
  浙江省重大科技攻关项目(No.2006C11200();No.2009C11035)()
- DOI：10.3788/OPE.20111909.2170
  中图分类号： TN919.8
- 收稿日期：2010-11-16，
  
  修回日期：2011-02-15，
  
  网络出版日期：2011-09-26，
  
  纸质出版日期：2011-09-26
- 稿件说明：
移动端阅览
黄爱爱, 陈耀武. 可伸缩视频编码中基于部分解码的率失真优化[J]. 光学精密工程, 2011,19(9): 2170-2176

HUANG Ai-ai, CHEN Yao-wu. Rate distortion optimization based on partial decoding for scalable video coding[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2170-2176
黄爱爱, 陈耀武. 可伸缩视频编码中基于部分解码的率失真优化[J]. 光学精密工程, 2011,19(9): 2170-2176 DOI： 10.3788/OPE.20111909.2170.

HUANG Ai-ai, CHEN Yao-wu. Rate distortion optimization based on partial decoding for scalable video coding[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2170-2176 DOI： 10.3788/OPE.20111909.2170.

摘要

在可伸缩视频编码系统中

原始码流经过裁剪可以提取出多个子码流。为了联合优化原始码流和子码流的编码质量

提出了基于部分解码的率失真优化算法。首先

在增强层的率失真计算中

通过对离散余弦变换(DCT)系数进行有选择截断来估计子码流对编码的影响

并建立误差扩散失真图对部分解码引起的误差扩散进行预测。在基本层的率失真计算中

针对编码层之间在模式选择上的限制

使用多层联合编码方法来计算率失真代价。为了降低算法引入的计算量

对部分解码条件下的重建过程和基本层模式选择进行复杂度优化。最后

对参数选择进行了讨论

利用每个宏块的误差扩散敏感度来动态估计算法参数。实验结果表明

本方法能使子码流的峰值信噪比提高0.03~0.53 dB

可以满足可伸缩编码系统对编码效率和码率提取点的要求。

Abstract

In scalable video coding

the original bit-stream can be cropped and generate multiple sub-bit-streams. In order to optimize coding efficiency of both the original bit-stream and the sub-bit-streams

partial decoding based on a Rate Distortion Optimization (RDO) algorithm is proposed. In the enhancement layers RDO process

the influence of sub-bit-streams on coding efficiency is predicted by selectively truncating Discrete Cosine Transform(DCT) coefficients.The propagation distortion map is then used to estimate the drift error. In the base layers RDO process

the multi-layer coding method is employed to cope with the constraint between the layers mode choice. In order to reduce the computational complexity of the algorithm

both the partially decoded reconstruction process and the base layers mode decision are optimized. Finally

the configuration of parameters is discussed and chosen adaptively based on the error propagation sensitivity on a macroblock basis. From experimental results

the proposed algorithm improves the sub-bit-streams Peak Signal to Noise Ratio(PSNR) by 0.03-0.53 dB. For the scalable video system

the proposal can meet the needs of high coding efficiency and flexible sub-bit-rate extraction.

关键词

Keywords

references

SCHWARZ H, MARPE D, WIEGAND T. Overview of the scalable video coding extension of the H.264/AVC standard[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2007,17(9):1103-1120.[2] SULLIVAN G J,WIEGAND T. Rate-distortion optimization for video compression [J]. IEEE Signal Processing Magazine, 1998,15(6):74-90.[3] AMONOU I, CAMMAS N, KERVADEC S, et al.. Optimized rate-distortion extraction with quality layers in the scalable extension of H.264/AVC[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2007,17(9):1186-1193.[4] SUN J, GAO W, ZHAO D, et al.. On rate-distortion modeling and extraction of H.264/SVC fine-granular scalable video[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2009, 19(3):323-336.[5] MAANI E, KATSAGGELOS A K. Optimized bit extraction using distortion modeling in the scalable extension of H.264/AVC[J]. IEEE Transactions on Image Processing, 2009, 18(9):2022-2029. [6] JIANG J, FANG H, YANG S Y. Low-cost and fast partial decoding of compressed videos [J]. Journal of Electronic Imaging, 2004, 13(2):334-340.[7] CHANG H S, KANG K. A compressed domain scheme for classifying block edge patterns [J]. IEEE Transactions on Image Processing, 2005,14(2):145-151.[8] SCHWARZ H, WIEGAND T. R-D optimized multi-layer encoder control for SVC. Proceedings of International Conference on Image Processing (ICIP), San Antonio, 2007:II281-II284.[9] GUO Y, CHEN Y, WANG Y K, et al.. Error resilient coding and error concealment in scalable video coding[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2009, 19(6): 781-795.[10] 祝世平, 申晓东. 十字交叉六边形块运动的估计搜索[J]. 光学精密工程,2009, 17(12):3069-3076. ZHU SH P, SHEN X D. Cross-hexagon search algorithm for fast block-matching motion estimation[J]. Opt. Precision Eng., 2009, 17(12):3069-3076. (in Chinese)[11] PO L M, GUO K. Transform-domain fast sum of the squared difference computation for H.264/AVC rate-distortion optimization[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2007, 17(6):765-773.[12] LI H, LI Z G, WEN C. Fast mode decision algorithm for inter-frame coding in fully scalable video coding[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2006, 16(7): 889-895.[13] Joint Video Team, H.264/SVC reference software (JSVM 9.18) and manual, CVS sever at garcon.ient.rwth-aachen.de, Jun. 2009.

浏览量

682

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

偏振调制测距系统频率漂移误差及其补偿