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Forced intra refreshment method based on the propagation model of uncertainties in the reference pixels for H.264 streaming service

机译:基于参考像素不确定性传播模型的强制帧内刷新方法,用于H.264流媒体服务

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摘要

In this paper, we propose a novel propagation model for the uncertainty in the reference pixels and the model-based improved intra-refreshment method for the H.264 streaming service through the error-prone channel. The proposed intra-refreshment algorithm can incorporate with the SAD-based low-complexity mode decision as well as the RD-opti-mizing high-complexity mode decision. Simulations on RTP/IP transmission over mobile channels with the 42.7 and 85.3 kbps encoding of QCIF 30 frames/s sequences show that the proposed intra-refreshment scheme improves the average quality of decoded pictures by 1.36-0.47 dB compared with the conventional periodic GOB refreshment algorithms.
机译:在本文中,我们针对参考像素中的不确定性提出了一种新颖的传播模型,以及通过易错信道对H.264流服务进行基于模型的改进的帧内刷新方法。所提出的帧内刷新算法可以与基于SAD的低复杂度模式决策以及RD优化高复杂度模式决策相结合。通过QCIF 30帧/秒序列的42.7和85.3 kbps编码在移动信道上进行RTP / IP传输的仿真表明,与常规的周期性GOB刷新相比,所建议的帧内刷新方案将解码图像的平均质量提高了1.36-0.47 dB算法。

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