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首页> 外文会议>International Conference on Digital Image Processing >Extrapolation Based Pixel Domain Distributed Video Coding
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Extrapolation Based Pixel Domain Distributed Video Coding

机译：基于外推的像素域分布式视频编码

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摘要

The current interpolation based distributed video codecs get excellent rate distortion performance at the cost of high decoder complexity and delay, which make them almost impractical. An efficient way to solve the problem is to use extrapolation instead of interpolation in side information generation. The proposed codec combines the state-of-the-art optical flow based extrapolation algorithm with modulo operation based low complexity pixel domain distributed video codec and gets high R-D performance. The proposed codec enables the successful encoding and decoding of the frames, thus reducing the delay of the whole system. Simulation results show that the proposed codec outperforms other interpolation and extrapolation based codecs in a series of video sequences. Additionally, the decoding complexity is as low as 1/50 of the traditional distributed video codec without increasing the complexity of the encoder.
机译：当前基于插值的分布式视频编解码器以极高的解码器复杂度和延迟为代价获得了出色的速率失真性能，这使其几乎不切实际。解决此问题的有效方法是在辅助信息生成中使用外推法而不是内插法。所提出的编解码器将基于最新光流的外推算法与基于模运算的低复杂度像素域分布式视频编解码器相结合，并获得了很高的R-D性能。所提出的编解码器能够成功地对帧进行编码和解码，从而减少了整个系统的延迟。仿真结果表明，在一系列视频序列中，提出的编解码器性能优于其他基于内插和外推的编解码器。另外，在不增加编码器复杂度的情况下，解码复杂度低至传统分布式视频编解码器的1/50。

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