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Rate distortion lower bounds for video sources and the HEVC standard

机译:视频源和HEVC标准的速率失真下限

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Rate distortion bounds for video sources had eluded researchers for decades until our recent development of a new video source model. Our new model is composed of a five parameter spatial correlation model with the parameter selection dependent on texture information; and a series of temporal correlation coefficients that only depend on the video frame index offset. Using this new model and conditional rate distortion theory for the MSE distortion measure, we were able to obtain rate distortion functions that strictly lower bound the performance of the Advanced Video Coding (AVC/H.264) video codec. In this paper, we elaborate on the video source model and compare the performance of the newest high performance video codec, the High Efficiency Video Codec (HEVC/H.265), to our rate distortion curves.
机译:视频源的速率失真范围一直困扰着研究人员数十年,直到我们最近开发了一种新的视频源模型。我们的新模型由一个五参数空间相关模型组成,其参数选择取决于纹理信息。以及一系列时间相关系数,这些时间相关系数仅取决于视频帧索引偏移。使用此新模型和有条件的速率失真理论进行MSE失真度量,我们能够获得严格降低高级视频编码(AVC / H.264)视频编解码器性能的速率失真函数。在本文中,我们详细介绍了视频源模型,并将最新的高性能视频编解码器高效视频编解码器(HEVC / H.265)的性能与速率失真曲线进行了比较。

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