%0 Journal Article
%T Progressive Geometry Compression for Meshes<br>网格的渐进几何压缩
%A QIN Xu-ji
%A LIU Xin-guo
%A BAO Hu-jun
%A PENG Qun-sheng
%A <br>秦绪佳
%A 刘新国
%A 鲍虎军
%A 彭群生
%J 软件学报
%D 2002
%I 
%X A progressive geometry compression scheme is presented in this paper. In this scheme, a mesh is represented as a base mesh followed by some groups of vertex split operations using an improved simplification method, in which each level of the mesh can be refined into the next level by carrying out a group of vertex split operations in any order. Consequently, the PM representation can be effectively encoded by permuting the vertex split operations in each group. Meanwhile, a Laplacian geometry predicator is desinged to predict each new verttex position using its neighbors.The correction is quantized and encoded using Huffman coding scheme.Experimental results show that the algorithm can obtain higer compression ratios than than the previous work.It is very suitable for progressive transmission of geometry models over Internet.
%K triangular mesh
%K geometry compression
%K manifold surface
%K progressive mesh<br>三角网格
%K 几何压缩
%K 流形曲面
%K 渐进网格
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=533539D64D4A8C68&yid=C3ACC247184A22C1&vid=FC0714F8D2EB605D&iid=9CF7A0430CBB2DFD&sid=64C4335F00120D16&eid=FF9809C79A59DC74&journal_id=1000-9825&journal_name=软件学报&referenced_num=5&reference_num=18