【摘要】 随着电信多媒体业务的快速发展,交互式电视(IPTV)为代表的视讯业务已经越来越成为关注的焦点。文章首先简要概述了IPTV的几种常见的QoE业务质量指标,接着详细阐述了视频传输质量评估指标MDI,主要对其两个主要参数进行了较为详尽的分析,并且简单地分析了实际的IPTV网络测试时序失真以及对视频质量的影响。最后提出了如何更好的提高网络业务质量各项指标是一项值得研究的课题。更多还原

【Abstract】 With the rapid development of multimedia service,video service such as Internet Protocol Television(IPTV) has increasingly become the focus of attention.First,the paper gives a brief overview of several common IPTV QoE QoS indicators,then describes the video transmission quality evaluation indicator,MDI,and mainly analyzes its 2 parameters in detail.Moreover,it analyzes in brief the actual IPTV network test temporal distortion as well as its effect on the video quality.Finally,it proposes that how to improve the network QoS indicators is a topic needs to be studied in the future.更多还原