近年来,视频会议系统的应用越来越广泛,特别是在政府机关和办公自动化等领域,视频会议系统已成为日臻完善的技术而倍受青睐。一、会议电视的概念视频会议系统是多媒体通信技术的一种应用,它是利用计算机、电视技术及其设备通过传输信道在两个地点或多个地点之间同时开会的一种通信手段。视频会议系统通过摄像机和话筒将某个会场与会人的形像及其言论传送到其他会场,并且能出示实物、图纸、文件的图像(现场直播),以增强临场 In recent years, the application of video conferencing systems has become more and more widespread. Especially in the fields of government agencies and office automation, video conferencing systems have become increasingly sophisticated technologies and are favored. First, the concept of video conferencing Video conferencing system is an application of multimedia communications technology, which is the use of computers, television technology and its equipment through the transmission channel at two locations or more at the same time a meeting between the means of communication. The video conferencing system transmits the image of a venue participant and its remarks to other venues via video cameras and microphones, and can present images (live broadcasts) of physical objects, drawings and documents to enhance the presence