论文标题
运动补偿频率选择性外推，以进行视频编码中的错误隐藏
Motion Compensated Frequency Selective Extrapolation for Error Concealment in Video Coding
论文作者
论文摘要
尽管无线和基于IP的视频内容访问为观众提供了新的自由度，但始终存在由传输错误造成的严重阻止损失的风险。本文的目的是提出一种在错误收到的视频序列中隐藏块损失的新方法。为此，在丢失的块周围生成了一个运动补偿数据集。基于此对齐的数据集，创建了信号模型，该模型将信号继续进入丢失区域。由于用于模型生成的空间和时间信息，因此所提出的方法优于使用空间或时间信息隐藏的方法。此外，在PSNR中，它的表现优于最高时空隐藏算法的当前状态。
Although wireless and IP-based access to video content gives a new degree of freedom to the viewers, the risk of severe block losses caused by transmission errors is always present. The purpose of this paper is to present a new method for concealing block losses in erroneously received video sequences. For this, a motion compensated data set is generated around the lost block. Based on this aligned data set, a model of the signal is created that continues the signal into the lost areas. Since spatial as well as temporal informations are used for the model generation, the proposed method is superior to methods that use either spatial or temporal information for concealment. Furthermore it outperforms current state of the art spatio-temporal concealment algorithms by up to 1.4 dB in PSNR.
