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arXiv 1909.02772cs.MM
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HTTP自适应流媒体的累积质量建模

Cumulative Quality Modeling for HTTP Adaptive Streaming

Huyen T. T. Tran, Nam Pham Ngoc, Tobias Hoßfeld, Michael Seufert, Truong Cong Thang

摘要:

由于Web平台和宽带连接的丰富性,HTTP自适应流已经成为当今多媒体传输的事实上的选择。然而,由于带宽波动,自适应视频流传输的视觉质量在会话期间可能强烈波动。因此,随着时间的推移评估流会话的质量是很重要的。在本文中,我们提出了一个模型来估计HTTP自适应流的累积质量。在该模型中,一个滑动窗口的视频片段被用作基本的构建块。通过使用主观数据集的统计分析,我们确定了累积质量模型的三个重要组成部分,即最小窗口质量,最后一个窗口质量和平均窗口质量。实验结果表明,该模型具有较高的预测性能,优于相关的质量模型。此外,所提出的模型的另一个优点是它的简单性和有效性的部署在实时估计。拟议模型的源代码已在https://github.com/TranHuyen1191/CQM上向公众提供。

英文摘要:

Thanks to the abundance of Web platforms and broadband connections, HTTP Adaptive Streaming has become the de facto choice for multimedia delivery nowadays. However, the visual quality of adaptive video streaming may fluctuate strongly during a session due to bandwidth fluctuations. So, it is important to evaluate the quality of a streaming session over time. In this paper, we propose a model to estimate the cumulative quality for HTTP Adaptive Streaming. In the model, a sliding window of video segments is employed as the basic building block. Through statistical analysis using a subjective dataset, we identify three important components of the cumulative quality model, namely the minimum window quality, the last window quality, and the average window quality. Experiment results show that the proposed model achieves high prediction performance and outperforms related quality models. In addition, another advantage of the proposed model is its simplicity and effectiveness for deployment in real-time estimation. The source code of the proposed model has been made available to the public at https://github.com/TranHuyen1191/CQM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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