Improved side information generation algorithm for Wyner-Ziv video coding

doi:10.1016/S1005-8885(14)60276-4

中国邮电高校学报(英文) ›› 2014, Vol. 21 ›› Issue (1): 109-115.doi: 10.1016/S1005-8885(14)60276-4

Improved side information generation algorithm for Wyner-Ziv video coding

张登银^1,2,吴媛媛²,WAN Ming-xiang²

1. Sci-Tech Park of Internet of Things, Nanjing University of Posts and Telecommunication, Nanjing 210003, China 2. Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunication, Nanjing 210003, China

收稿日期:2013-08-07 修回日期:2013-10-17 出版日期:2014-02-28 发布日期:2014-02-28
通讯作者: 张登银 E-mail:zhangdy@njupt.edu.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (61071093), the Hi-Tech Research and Development Program of China (2010AA701202), the Sweden-Asian International Cooperation Project (348-2008-6212), the Jiangsu Province Major Technology Support Program (BE2012849), the Jiangsu Province IOT Application Demonstration Project (SJ212025), and the SRF for ROCS, SEM (NJ209002), the Jiangsu Province Scientific and Technological Innovation Projects (CXLX12_0481).

Improved side information generation algorithm for Wyner-Ziv video coding

1. Sci-Tech Park of Internet of Things, Nanjing University of Posts and Telecommunication, Nanjing 210003, China 2. Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunication, Nanjing 210003, China

Received:2013-08-07 Revised:2013-10-17 Online:2014-02-28 Published:2014-02-28
Supported by:
This work was supported by the National Natural Science Foundation of China (61071093), the Hi-Tech Research and Development Program of China (2010AA701202), the Sweden-Asian International Cooperation Project (348-2008-6212), the Jiangsu Province Major Technology Support Program (BE2012849), the Jiangsu Province IOT Application Demonstration Project (SJ212025), and the SRF for ROCS, SEM (NJ209002), the Jiangsu Province Scientific and Technological Innovation Projects (CXLX12_0481).

摘要/Abstract

摘要：

Side information has a significant influence on the rate-distortion (RD) performance of distributed video coding (DVC). In the conventional motion compensated frame interpolation scheme, all blocks adopt the same side-information generation method regardless of the motion intensity inequality at different regions. In this paper, an improved method is proposed. The image blocks are classified into two modes, fast motion and slow motion, by simply computing the discrete cosine transformation (DCT) coefficients at the encoder. On the decoder, it chooses the direct interpolation and refined motion compensated interpolation correspondingly to generate side information. Experimental results show that the proposed method, without increasing the encoder complexity, can increase the average peak signal-to-noise ratio (PSNR) by up to 1~ 2 dB compared with the existing algorithm. Meanwhile, the proposed algorithm significantly improves the subjective quality of the side information．

关键词:

DVC, side information, motion estimation, motion compensation

Abstract:

Key words:

DVC, side information, motion estimation, motion compensation

中图分类号:

TN919.8

ZHANG Deng-yin, WU Yuan-yuan, WAN Ming-xiang. Improved side information generation algorithm for Wyner-Ziv video coding[J]. Acta Metallurgica Sinica(English letters), 2014, 21(1): 109-115.

参考文献

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Improved side information generation algorithm for Wyner-Ziv video coding

Improved side information generation algorithm for Wyner-Ziv video coding

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