Error Protection of Wavelet Scalable Video Streaming Using Wyner-Ziv Technique over a Lossy Network
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- 作者：Benjian Liu ; Ke Xu
- 关键词：error resilient coding ; Wyner-Ziv coding ; wavelet video coding ; scalable video coding
- 刊名：Physics Procedia
- 出版年：2012
- 出版时间：2012
- 年：2012
- 卷：24
- 期：Complete
- 页码：1588-1594
- 全文大小：400 K
文摘
This paper presents a novel error resilience scheme for wavelet scalable video coding. We use Wyner-Ziv codec to produce extra bits protecting the important parts of the embedded video streaming. At the same time these bits also as the second description of important parts are transmitted over auxiliary channel to the receiver for error resilience. The errors in the embedded video streaming can be corrected by Wyner-Ziv description which regards the decoded frame as side information. Moreover, Wyner-Ziv decoder utilizes a coarse estimated version of the corrupted parts exploiting frame correlation in wavelet video decoder to generate a refine version. Simulation results show that our proposed method can achieve much better performance compared with Forward Error Correction code. Meanwhile, this error resilient algorithm can achieve 2-3 dB PSNR gains over the motion compensation error concealment.