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Novel Side Information Generation Algorithm of Multiview Distributed Video Coding for Multimedia Sensor Networks

机译:多媒体传感器网络中多视图分布式视频编码的边信息生成新算法

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The traditional multiview distributed video coding scheme using regional unified coding may lead to distortion problem of decoding estimation of the intense motion region. This paper presents a novel multiview distributed video coding algorithm. In the main perspective, gaining the intense motion regions of Wyner-Ziv frame according to the criteria of ROI, the algorithm extracts their DCT low-frequency coefficients for the entropy coding, in order to generate the best temporal side information. For the nonintense motion regions, the algorithm utilizes motion compensation interpolation (MCI) to generate side information. Finally, side information based on fusion of temporal and spatial side information will be gained. Experimental results show that our proposed algorithm can gain more accurate motion estimation in the intense motion region. Quality of decoded image is improved with the same transmit rate; thus, energy consumption of sensor nodes will be decreased ultimately.
机译:使用区域统一编码的传统多视点分布式视频编码方案可能导致激烈运动区域的解码估计的失真问题。本文提出了一种新颖的多视图分布式视频编码算法。从主要角度来看,该算法根据ROI准则获得Wyner-Ziv帧的剧烈运动区域,该算法提取其DCT低频系数用于熵编码,以生成最佳的时间辅助信息。对于非剧烈运动区域,该算法利用运动补偿插值(MCI)生成辅助信息。最后,将获得基于时空辅助信息融合的辅助信息。实验结果表明,本文提出的算法可以在激烈运动区域获得更准确的运动估计。在相同的传输速率下,可提高解码图像的质量;因此,最终将减少传感器节点的能耗。

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