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首页> 外文期刊>The journal of China Universities of Posts and Telecommunications >Robust spatio-temporal error concealment for packet- lossy H.264 video transmission
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Robust spatio-temporal error concealment for packet- lossy H.264 video transmission

机译：丢包H.264视频传输的鲁棒时空错误隐藏

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摘要

In this article, a spatio-temporal post-processing error concealment algorithm designed initially for a H.264 video-streaming scheme over packet-lossy networks has been presented. It aims at optimizing subjective quality of restored video and the conventional objective metric, peak signal-to-noise ratio (PSNR), as well, under the constraints of low delay and computational complexity, which are critical to real-time applications and portable devices having limited resources. Specifically, it takes into consideration physical property of motion to achieve more meaningful perceptual video quality. Further, a content-adaptive bilinear spatial interpolation approach and a temporal error concealment approach are combined under a unified boundary match criterion based on texture and motion activity analysis. Extensive experiments have demonstrated that the proposal not only result in better reconstruction, objectively and subjectively, than the reference software model benchmark, but also results in better robustness to different video sequences.
机译：在本文中，提出了一种时空后处理错误隐藏算法，该算法最初是针对数据包有损网络上的H.264视频流方案设计的。它的目的是在低延迟和计算复杂性的约束下优化恢复视频的主观质量和常规客观指标，峰值信噪比（PSNR），这对于实时应用和便携式设备至关重要资源有限。具体而言，它考虑了运动的物理属性以实现更有意义的感知视频质量。此外，基于纹理和运动活动分析，在统一的边界匹配准则下将内容自适应的双线性空间插值方法和时间错误隐藏方法相结合。大量的实验表明，该建议不仅在客观和主观上比参考软件模型基准更好地进行了重建，而且对不同的视频序列具有更好的鲁棒性。

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