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首页> 外文期刊>Malaysian Journal of Computer Science >New Domain Decomposition Method For Quality-Aware Parallel H.264 Video Coding
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New Domain Decomposition Method For Quality-Aware Parallel H.264 Video Coding

机译：质量感知并行H.264视频编码的新域分解方法

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摘要

In this paper, we present a new parallel granularity called iling?to parallelize the H.264 codec. The new parallel granularity, which has the same granularity level as the parallel slice-level H.264 codec, is based on decomposing the entire video frame into tiles by utilizing a new inherently parallel 2D domain decomposition method. To assess the proposed approach, its parallel scalability, bit rate, and parallel impact on visual quality (peak signal-to-noise ratio) are compared with those of other approaches. Empirical results show significant improvements in encoding time as compared to the serial and the parallel slice-level approaches. In terms of peak signal-to-noise ratio and bit rate, certain results improved, a few were comparable, while a few were discouraging, when compared to the results of the other approaches. However, addressing the limitations of the proposed method is highlighted as future work.
机译：在本文中，我们提出了一种新的并行粒度，称为iling ?，以并行化H.264编解码器。新的并行粒度与并行切片级别的H.264编解码器具有相同的粒度级别，它是基于利用新的固有并行2D域分解方法将整个视频帧分解为图块的。为了评估所提出的方法，将其并行可扩展性，比特率以及对视觉质量（峰值信噪比）的并行影响与其他方法进行了比较。实验结果表明，与串行和并行切片级别方法相比，编码时间有了显着改善。与其他方法的结果相比，就峰值信噪比和比特率而言，某些结果有所改善，一些结果具有可比性，而另一些则令人沮丧。但是，解决提出的方法的局限性是未来工作的重点。

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