Adaptive Weighted Prediction for Scalable Video Coding Based on HEVC
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- 作者：Gang Wu (22)
Wenpeng Ding (22)
Yunhui Shi (22)
Baocai Yin (22) - 关键词：scalable video coding ; combined weighted prediction ; inter ; layer adaptive filter ; inter ; layer frame prediction ; HEVC
- 刊名：Lecture Notes in Computer Science
- 出版年：2013
- 出版时间：2013
- 年：2013
- 卷：8294
- 期：1
- 页码：122-133
- 全文大小：389KB
- 作者单位：Gang Wu (22)
Wenpeng Ding (22)
Yunhui Shi (22)
Baocai Yin (22)
22. Beijing Key Laboratory of Multimedia and Intelligent Software Technology College of Computer Science and Technology, Beijing University of Technology, 100124, Beijing, China - ISSN：1611-3349
文摘
Scalable video coding provides an efficient way to serve video contents at different visual quality levels and different resolutions. In this paper, the spatial scalability and quality scalability are evaluated on a base of the new Scalable High-efficiency Video Coding (SHVC) extension of HEVC under development. To further improve the coding efficiency of SHVC, we present a set of coding schemes to exploiting inter-layer redundancies for efficient compression of the enhancement layer. The coding schemes include inter-layer frame prediction, combined weighted prediction and inter-layer adaptive filter, which aim at fully utilizing the reconstructed base pictures in the enhancement layer prediction. Experimental results show the effectiveness of our scheme compared with the simulcast case and other HEVC-based scheme. In average, these schemes can achieve 1.5% and 1.7% BD-rate gain for RA HEVC 2x spatial scalability case and HEVC SNR scalability case, respectively.