Rate-Distortion Optimized Video Coding Using Automatic Sprites

被引：3

作者：

Krutz, Andreas ^{[1
]}

Glantz, Alexander ^{[1
]}

Frater, Michael ^{[2
]}

Sikora, Thomas ^{[1
]}

机构：

[1] Tech Univ Berlin, Commun Syst Grp, D-10587 Berlin, Germany

[2] Univ New S Wales, Sch Engn & IT, Canberra, ACT 2600, Australia

来源：

IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING | 2011年 / 5卷 / 07期

关键词：

H.264/AVC; rate-distortion; sprite coding; video coding; BIT ALLOCATION; IMAGE;

D O I：

10.1109/JSTSP.2011.2166247

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Object-based video coding has been of interest for many years. Recent work by the authors has shown that a video coding system using background Sprites with automatic segmentation and background subtraction can indeed perform better than the H.264/AVC coder. In this paper, we extend this work by developing a rate-distortion optimization approach for an object-based coder. A key issue addressed by this approach is the joint choice of quantization parameters for the foreground and background. The performance of the resulting rate-distortion-optimized coder is far superior to that of H.264/AVC for source material with dominant global motion, across a range of bit rates.

引用

页码：1309 / 1321

页数：13

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