关于多属性三维网络压缩与传输问题的研究  

Research on Compression and Progressive Transmission of 3-D Meshes with Multi-Attributes

作　　者：宋正阳[1] 胡玉清 谢传节[3] 

机构地区：[1]中国矿业大学(北京),北京100083 [2]空军航空管制系,北京100071 [3]中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101

出　　处：《计算机技术与发展》2009年第2期190-192,共3页Computer Technology and Development

基　　金：国家自然科学基金(90502010);国家高技术研究发展计划(12Z2;2007AA12Z203)

摘　　要：通过对渐近网格(PM)技术与多属性压缩渐近网格(MACPM)技术的探讨,提出了采用扩展二次误差测度表示简化网格与初始网格的几何特征与其它属性信息的匹配程度,同时利用线性插值方法简化压缩算法,以减少解压时开销,且保证三维数据有更好的显示效果。实验证明,该方法不仅对三维几何模型信息得到较好的保留,其颜色信息也得到了有效的保留,并且MACPM技术相对PM技术在网络传输上总体效率有所提高。Based on the PM and MACPM approaches, use quadric error metric to express the match degree of geometry characteristic and other attribute information of simplified mesh and original mesh. In addition, linear interpolation will be used to simplify the algorithm in order to lower the overhead of the deeompression, and guarantee the 3 - D dates have a better display effect. Experiments show that the method is not only better to retain its geometric information but to ensure that its color information has been effective retention, and the MACPM technology and the relative PM technology in the network transmission on the overall efficiency has improved.

关 键 词：边折叠 二次误差测度 三维网格 线性插值 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]