任意拓扑结构复杂曲面模型重构新方法  

NOVEL METHOD OF ARBITRARY TO- POLOGICAL COMPOSITE FREE-FORM SURFACE RECONSTRUCTION

作　　者：任秉银[1] 陈皓晖[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001

出　　处：《机械工程学报》2003年第10期162-166,共5页Journal of Mechanical Engineering

基　　金：教育部和黑龙江省留学回国人员科研基金资助项目(LC01C10)

摘　　要：分析了采用参数化方法进行复杂曲面模型重构时存在的缺点,给出了应用递归插值分割理论从离散测量点构成的初始控制网格直接构造任意拓扑结构复杂自由曲面模型时计算插值点的统一算法,设计了一种能充分体现这种曲面模型重构方法优点的四叉树型数据结构存储必要的信息,最后给出了复杂自由曲面模型重构的几个实例。从实例可以看出该方法能够避免参数化方法在复杂曲面模型重构时所必须的参数曲面片之间的拼接和裁剪等问题,为复杂自由曲面模型重构提供了有效的新方法。The main problems of parametric methods in composite surface reconstruction are analyzed. A novel surface reconstruction scheme of recursive interpolating subdivision is presented to calculate the interpolated vertices from the arbitrary to pological initial mesh formed by the discrete measurement points of the physical model. A quad-tree typed data structure is designed to store all the necessary information of subdivision process.. The presented examples of complicated surface reconstruction can verify that the parameterization of the discrete measurement points and the surface conjunction between patches can be avoided. A novel effective approach for complicated surface reconstruction is put forward.

关 键 词：曲面重构 递归分割 插值 初始网格 拓扑结构 CAD 逆向工程 虚拟现实 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构] TP391[自动化与计算机技术—计算机科学与技术]