摘要
和语音、数据业务相比,视频业务占用带宽资源较多、实时性要求较高,并且对数据丢失、时延、抖动等网络特性非常敏感。分析了影响分发类视频业务(分为直播和点播)用户视频体验的关键因素,主要包括视频源质量、音频源质量、用户的交互体验和观看体验,提出了实现用户体验评估的技术要点。根据不同的承载网络,将固网IPTV业务以外的直播视频业务按广电直播、互联网直播、移动视频直播这3种常见网络承载方式分别进行阐述。
Compared with voice and data services,video services occupy more bandwidth resources,require higher real-time performance,and are sensitive to data loss,delay,jitter and other network characteristics. The quality of video source,audio quality,user interaction and viewing experience are analyzed,and the key points of user experience evaluation are put forward. According to the different carrier network,the live video services other than the fixed IPTV service are described in three common network carrying modes,namely,TV live video broadcasting,internet video broadcasting and mobile video broadcasting.
出处
《邮电设计技术》
2017年第7期65-69,共5页
Designing Techniques of Posts and Telecommunications
关键词
分发类视频业务
用户体验
评估
Distribution video service
User experience
Assessment
