IPTV与IPQAM体系架构及其关键技术比较研究  

Comparative Study on Architecture and Key Technologies of IPTV and IPQAM

作　　者：陈伟[1] 李荆生 童晓光[1] 

机构地区：[1]六安市广播电视网络传输中心,安徽六安237000

出　　处：《电视技术》2012年第16期41-44,共4页Video Engineering

摘　　要：视频交互平台是一种与承载网络相配合完成直播视频捕获、编解码、存储与分发的前端视频处理操作平台。结合IPTV与IPQAM两种视频点播体系架构,比较与分析了两种架构下的视频编码、视频处理、网络接入等关键技术的区别与内在联系。最后,对于两种架构下的多业务终端共存问题做了一定的技术探讨。Interactive video platform is the front-end video processing operating platform which is matched with the bearer network and completes the live video capture, encoding and decoding, storage and distribution. Combined with the two video-on-demand system architecture of IPTV and IPQAM, key technologies＇ differences and inner contact in live TV, video-on-demand, time-shifted TV are all analyzed and compared. Finally, the problem of multi-service terminal coexistence is discussed based on the two architectures.

关 键 词：IPTV IPQAM 体系架构 关键技术 比较研究 

分 类 号：TN949[电子电信—信号与信息处理] TN943[电子电信—信息与通信工程]