Optimized rate-distortion extraction with quality layers in the scalable extension of H.264/AVC

被引：87

作者：

Amonou, Isabelle ^{[1
]}

Cammas, Nathalie ^{[1
]}

Kervadec, Sylvain ^{[1
]}

Pateux, Stephane ^{[1
]}

机构：

[1] France Telecom R&D, Orange Labs, F-35512 Rennes, France

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY | 2007年 / 17卷 / 09期

关键词：

Communication standards; H.264; IEC; ISO; ITU; MPEG-4; AVC; SVC; Optimization methods; Rate-distortion (R-D) theory; Video coding;

D O I：

10.1109/TCSVT.2007.906870

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：

The concept of Quality Layers that has been introduced in Scalable Video Coding (SVC) amendment of MPEG4-AVC is presented. By using the Quality Layers post-processing to evaluate and signal the impact on rate and distortion of the various enhancement information pieces, a significant gain is achieved: Quality Layers significantly outperform the basic standard extractor that was initially proposed in SVC. For the standard set of test sequences, in a range of acceptable video quality, an average quality gain of up to 0.5 dB is achieved. Furthermore, the technique can be used for combined (spatial, temporal and quality) scalability. Thanks to the signaling of this information in the header of the Network Abstraction Layer units or in a Supplemental Enhancement Information message, the adaptation can be performed with a simple parser, e.g., at decoder side or in an intelligent network node designed for rate adaptation.

引用

页码：1186 / 1193

页数：8