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ATM(AVC-based test model)测试模型实现了多视视频加深度(MVD)格式的联合编码,使得数据的压缩效率更高。然而,较高的压缩效率使得码流对传输错误非常敏感,极易产生错误扩散现象。针对ATM测试模型的编码顺序,提出一种用于MVD联合编码的错误隐藏算法。算法充分利用视点内、视点间及纹理视频与深度视频间的相关性,针对每个视点的不同特征提出了适应其视频特性的不同隐藏算法。实验表明,本文提出的算法可以在不增加算法复杂度的情况下,有效提高视频的主客观质量。
ATM (AVC-based test model) test model to achieve a multi-view video depth (MVD) format of the joint encoding, making data compression more efficient. However, the high compression efficiency makes the bit stream very sensitive to transmission errors and is prone to error diffusion. Aiming at the coding sequence of ATM test model, an error concealment algorithm for MVD joint coding is proposed. The algorithm takes full advantage of the correlation between intra-view, inter-view and texture video and depth video, and proposes different concealment algorithms that adapt to different features of each view according to their video features. Experiments show that the proposed algorithm can effectively improve the subjective and objective quality of video without increasing the complexity of the algorithm.