Video quality assurance in multi-source streaming techniques

P. Rodríguez-Bocca, H. Cancela, G. Rubino
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引用次数: 4

Abstract

In this paper we address the problem of designing a P2P system for distribution real-time video streams through the Internet. The main advantage of this approach is to use the available bandwidth unused by the set of machines connected to the network. The main difficulty is that these machines are typically highly dynamic, they continuously enter and leave the network. To deal with this problem, we explore a multi-source approach where the stream is decomposed into several flows sent by different peers to each client. To evaluate the impact of this approach on quality, we use PSQA, a recently proposed method that allows to obtain a good approximation of the quality as perceived by each client. In particular, we provide a variant of muti-source techniques using some redundancy in the signal, illustrating with real data how the methods allow to compensate efficiently the possible losses of frames due to peers leaving the system.
多源流技术中的视频质量保证
在本文中,我们解决了设计一个P2P系统,通过互联网分发实时视频流的问题。这种方法的主要优点是使用连接到网络的机器集未使用的可用带宽。主要的困难在于这些机器通常是高度动态的,它们不断地进入和离开网络。为了处理这个问题,我们探索了一种多源方法,其中将流分解为由不同的对等体发送给每个客户机的几个流。为了评估这种方法对质量的影响,我们使用了PSQA,这是一种最近提出的方法,可以获得每个客户所感知的质量的良好近似值。特别是,我们提供了一种多源技术的变体,在信号中使用一些冗余,用实际数据说明这些方法如何允许有效地补偿由于同伴离开系统而可能造成的帧损失。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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