随着三维技术的快速发展，人们对三维模型的需求越来越大，且互联网作为信息交流的工具，越来越普及，因此人们对互联网上快速传输三维模型的需求成为必然。另外，随着三维技术在现实生活中的广泛应用，人们对模型的精度也有了更高的要求，较常见的如：三维扫描仪创建的模型，3D Max, Maya等工具创建出来的模型，其具有精确的细节信息，含有较大的数据量，但是，这对三维模型在互联网上的快速、准确的传输来说是很大的挑战。为此，本文主要研究了三维模型在互联网上的渐进传输和绘制，重点放在服务器端的处理。为了克服当前三维模型在网络传输中的困难，使客户端可以实现快速浏览，获取高质量的模型，且满足客户端在浏览模型时的进行自由的交互，本文分析了现有的模型简化方法和模型压缩编码技术，并在此基础上提出了新的模型边折叠的代价计算方法和一种压缩比率更高的多分辨率三维几何模型压缩算法，其采用半边折叠的方法对三维模型进行多分辨率分解，实验表明，该算法可以获得更具真实性的简化效果及较好的压缩比率，另外，本文提出的算法可以有效的减少三维模型压缩编码的时间复杂度，因此，降低了三维模型在服务器端处理的速度，从而使模型的渐进传输具有更好的效果。本文最后对所作的工作进行了总结，在当前三维模型渐进传输研究的基础上，提出了后续应关注和研究的重点问题。

With the rapid development of the 3D technology, people demand more and more 3D model. Andthe Internet as a communication tool is more and more popular, so the requirements of quick transmission of 3D model over the Internet is necessary. In addition, with the 3D technology is applied in a wide range of real-life, people have higher requirements for the precision of the model. For example: the model created by the 3D scanner and the tools like 3D max, Maya and so on has precise detailed information which makes the model has large data. However, this is a great challenge to the current Internet for transmission of 3D model.So this paper does some research on the transmission and drawing of 3D model over Internet, especially the processing on the server-side.In order to overcome the limits of Internet, let the client can browse the 3D model quickly, get high-quality 3D model, interactive with the server freely over Internet, this paper analyzes the existing model simplification method and mode compression coding technology, and puts forward a new measure of the model simplification, and puts forward a new multi-resolution 3D model compression algorithm, which using half-edge collapse realizing the multiresolution decomposition, and has higher compression ratio. Experiments show that the algorithm can get more real effect and a better compression ratio, and as its time complexity is lower, it greatly improving the processing speed of 3D model.