视频会议系统关键技术及应用研究  

Study on Key Technology and Application of Video Conference System

作　　者：仲元昌[1] 林永[1] 蔡增增[1] 何进[2] 

机构地区：[1]重庆大学通信工程学院,重庆400044 [2]重庆工程职业技术学院,重庆400037

出　　处：《电视技术》2010年第6期93-96,共4页Video Engineering

基　　金：国家专项基金项目(3-37);重庆市自然科学基金项目(CSTC;2006BB2242)

摘　　要：针对视频会议系统的主要关键技术及应用问题,构建了一种高性价比的视频会议系统;采用嵌入式技术,充分利用软件技术与虚拟仪器技术的强大功能,实现了MCU的小型化,降低了系统成本。测试结果表明,该系统支持标准H.323协议、支持最新的H.264编码标准和H.239双视频流、支持广泛的网络协议,界面友好,性能稳定,具有较高的实用价值。According to the key technologies and application of video conference systems, a video conference system with higher performance-price is constructed. Embedded technology is taken in this system. By taking full advantage of the power of software technology and virtual instruments, the miniaturization of the Muhipoint Control Unit （MCU） is achieved, and the cost of the system is reduced. Testing results show that the system can support standard H.323 protocol, the latest H.264 video coding standard, H.239 dual stream and a wide range of network protocols. The system has a friendly interface and stable performance, and is with a high practical value.

关 键 词：视频会议系统 嵌入式技术 虚拟仪器 多点控制单元 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]