切片级管线表面三维重建  

Slice-based surface reconstruction of 3D pipeline

作　　者：陈涵[1] 邬群勇[1] 王钦敏[1] 

机构地区：[1]福州大学福建省空间信息工程研究中心数据挖掘与信息共享教育部重点实验室,福建福州350002

出　　处：《计算机应用》2005年第9期2196-2198,2207,共4页journal of Computer Applications

基　　金：国家863计划资助项目(2003AA135050)

摘　　要：在比较表面重建中的面绘制法和体绘制法以及面绘制中的切片级和体素级两种表面重建方法、分析表面重建流程的基础上,提出了一种计算型值点集的方法,它在计算弯道部分的管线时较为简便。该方法通过二次曲面求管线表面轮廓方程进而求得管线的型值点集。之后用三角网格对型值点集进行拼接来获得管线的表面模型,最后利用图形学的方法对管线表面模型进行绘制,达到管线表面三维重建的目的。文末利用Java3D给出了一个具体的实现。Based on comparing surface rendering with direct volume rendering and slice-based with volume-based surface reconstruction of 3D objects and analyzing the work-flow of surface reconstruction, a method of calculating shape points which was easier to flexure of pipeline was presented. With this method, shape points were calculated by surface outline equation got from quadratic surface. Then these shape points were patched with triangles grid, which gained the pipeline surface model. Finally, the pipeline models were rendered by means of computer graphics in order to implement 3D pipeline surface reconstruction, At last, a reconstruction instance with Java3D was given.

关 键 词：表面重建 切片级 二次曲面 表面轮廓方程 型值点 法矢 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]