With the rapid development of E-learning in China, building a national quality supervisal system of E-learning becomes more and more important. 随着我国网络教育事业的迅速发展，建立网络教育质量监控体系的需要也日益迫切。
In this paper, the architecture of the image monitoring system is analyzed and the core technologies for developing IMS.The image compression technology is focally presented. 论文首先对图像监控体系结构进行分析，讨论了实现远程图像监控系统的关键技术，重点研究了一些编码技术。
