具有对称特征的三维模型重构技术研究  

Study on the Reconstruction Technology of Three-Dimensional Model Having Symmetrical Characteristic

作　　者：于水生[1] 蔡勇[1] 饶锦锋[1] 

机构地区：[1]西南科技大学制造科学与工程学院,绵阳621010

出　　处：《机械设计与制造》2012年第9期80-82,共3页Machinery Design & Manufacture

基　　金：四川省教育厅重大培育项目(09ZZ034)

摘　　要：针对具有对称特征模型的逆向重构问题,首先利用ICP算法进行数据匹配并提取初始对称面,其次精确提取对称面,然后利用基于边和面的混合数据分割方法对预处理过的模型进行数据分割,最后重构得到一半的对称特征模型,再利用提取的对称平面进行镜像,得到完整的对称特征模型。此方法可快速实现模型逆向重构又能提高建模精度,应用于汽车内饰件的逆向重构中,既减少数据量,又节省运算时间,并且重构的模型及特征是关于平面完全对称的。Aiming at the reconstruction problem of symmetrical characteristic model,ICP algorithm to match data and extracted initial symmetry plane is used,then the symmetry plane is extracted accurately,after that the mixed data segmentation method which is based on the edge and plane is used to segment the pretreated model datcaFinally,half of the feature model is obtained by reconstructing,and then the complete feature model is obtained by mirroring according to the extracted symmetry plane.Model reverse recon- struction is realized quickly and modeling accuracy is improved by using this method.When it is used in a car interior decoration＇s reverse reconstruction,not only is the data reduced,but also the operation time is saved,the reconstructed model and characteristic is completely symmetrical on the symmetry plane.

关 键 词：逆向工程 对称面 数据分割 模型重构 

分 类 号：TH16[机械工程—机械制造及自动化]