Wyner-Ziv Video Coding using LDPC Codes
Wyner-Ziv Video Coding using LDPC Codes
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DOI：
10.1109/norsig.2006.275237
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发表时间：
2006-06
期刊：
影响因子：
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通讯作者：
Limin Liu;E. Delp
中科院分区：
文献类型：
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作者：
Limin Liu;E. Delp
Wyner-Ziv视频编码的目标是设计基于Slepian-Wolf和Wyner-Ziv分布式信源编码定理的编码器。在这种编码方案中，源统计数据在解码器处被利用，使得设计简化的编码器是可行的。计算复杂度从编码器到解码器的转移适合于新兴的移动的多媒体应用。许多信道编码技术被用于构造分布式视频编码系统。在本文中，我们提出了一个Wyner-Ziv视频编码设计使用低密度奇偶校验（LDPC）码。我们还提出了一个改进的边估计，以进一步提高解码视频质量。实验结果证明了该方法的率失真性能
Wyner-Ziv video coding aims to design encoders based on the Slepian-Wolf and Wyner-Ziv distributed source coding theorems. In this coding scenario, source statistics are exploited at the decoder so that it is feasible to design simplified encoders. The shift of the computational complexity from the encoder to the decoder is suitable for emerging mobile multimedia applications. Many channel coding techniques are used for the construction of distributed video coding systems. In this paper we present a Wyner-Ziv video coding design using low-density parity-check (LDPC) codes. We also present a refined side estimator to further improve the decoded video quality. Experimental results are presented to demonstrate the rate-distortion performance of the method