IPTV视频质量评估系统设计与研究

发布时间：2018-01-07 10:24

本文关键词：IPTV视频质量评估系统设计与研究　出处：《东南大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着国家不断推进传统的电信网、互联网以及有线电视网这三类不同的业务相互渗透和融合,以IPTV(Internet Protocol Television)为代表的三网融合业务快速增长。随着IPTV技术的不断发展,IPTV业务不断成熟,可以取得良好的视觉效果,保障良好的用户体验质量是IPTV成功发展的关键。但是随着网络用户和应用不断增加,网络负担不断加重,网络性能不断下降,影响到用户体验效果,运营商缺乏有效的监控手段,面临业务质量监控难、故障定位难、终端管理难等困难。本文设计了一套IPTV视频质量评估系统,采用客观评价方法实时评估IPTV业务视频的播放质量,并在界面进行直观的视频质量展示。当用户播放视频发生故障时,系统可以根据用户信息快速进行故障定位并分析故障产生的原因,此外还支持管理机顶盒,与机顶盒进行实时交互,节约运维成本。该系统包括视频质量评估功能、视频质量故障定位功能以及终端管理功能,测试结果表明该系统能够实时监控并评估单播频道视频质量,可以针对质量差视频播放记录进行故障定位并给出定界结论,有效的管理机顶盒终端。本文介绍了 IPTV视频质量的相关概念以及本系统涉及的主要技术,包括MOS(Mean Opinion Score)算法,MDI(Media Delivery Index)指标算法和TR069协议等。针对系统需求进行了分析,并对系统涉及的视频质量评估算法MOS-V(Mean Opinion Score to Video)、故障定位算法和终端管理安全认证机制等进行研究。对系统总体架构、主要模块和业务功能进行了设计,并描述了系统软件实现过程。最后设计功能测试用例进行测试验证,并给出该系统平台的运行测试结果。
[Abstract]:As the country continues to promote the traditional telecommunications network, the Internet and cable television network these three different services mutual penetration and integration. With the rapid growth of IPTV(Internet Protocol Television. along with the development of IPTV technology. IPTV business continues to mature, can achieve good visual effects, to ensure a good user experience quality is the key to the successful development of IPTV, but with the network users and applications continue to increase. Network burden continues to increase, network performance continues to decline, affecting the effect of user experience, operators lack of effective monitoring means, facing the service quality monitoring difficult, fault location is difficult. In this paper, a IPTV video quality evaluation system is designed, and the objective evaluation method is used to evaluate the video playback quality of IPTV services in real time. The system can quickly locate the fault according to the user information and analyze the cause of the failure. In addition, it also supports the management of set-top box. The system includes video quality evaluation function, video quality fault location function and terminal management function. The test results show that the system can monitor and evaluate the video quality of unicast channel in real time. Effective management of set-top box terminal. This paper introduces the concept of IPTV video quality and the main technology involved in the system. Includes the MOS(Mean Opinion Scorealgorithm. The index algorithm of MDI(Media Delivery Index and TR069 protocol are analyzed. And the video quality evaluation algorithm MOS-V(Mean Opinion Score to Video. Fault location algorithm and terminal management security authentication mechanism are studied. The overall architecture, main modules and business functions of the system are designed. Finally, the function test cases are designed for test verification, and the running test results of the system platform are given.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN949.292;TP311.52

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