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arXiv 2101.04790cs.NIcs.MM
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视频传输质量的scalability技术评价

Evaluation of quality scalability techniques for video transmission

Wilder Castellanos

摘要:

多媒体内容在互联网上传输的显着增加,需要新的交付策略,以确保良好的用户体验质量。由于网络条件的多次波动,通过分组网络传输视频不是一件容易的任务。提高某些视频流服务的质量的一种可能性是组合使用可伸缩视频编码和跨层机制,该跨层机制允许应用使其业务流适应可用的资源网络。本文对三种主要的可伸缩性技术:粗粒度可伸缩性(CGS)、细粒度可伸缩性(FGS)和中粒度可伸缩性(MGS)进行了性能评估。特别是,我们专注于确定哪种方法更适合于视频传输,同时考虑一些视频质量指标,如PSNR(峰值信噪比)和解码帧速率。结果表明,速率自适应策略和MGS技术有助于避免或减少网络拥塞,获得更好的质量在接收到的视频。

英文摘要:

The significant increase of the transmission of multimedia content over Internet are demanded new delivery strategies to assure a good quality of experience of the users. Transmission of video over packet networks is not an easy task due to multiple fluctuations of the network conditions. One possibility to improve the quality of some video streaming services is the combinate use of the scalable video coding and cross layer mechanisms that allow applications to adapt its traffic stream to the resources network that are available. In this paper, it is presented a performance evaluation of the three main scalability techniques: CGS (Coarse-Grained Scalability), FGS (Fine Grain scalability) and MGS (Medium Grain Scalability). In particular, we focus on determining what method is more appropriated for video transmission taking into account some video quality metrics like PSNR (Peak Signal-to-Noise Ratio) and decoded frame rate. The results reveal that the rate-adaptive strategy and the MGS technique help avoid or reduce the congestion in networks obtaining a better quality in the received videos.

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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