移动立方体算法的三重线性插值研究  

The Research on Trilinear Interpolation of Marching Cube

作　　者：吕理伟[1] 顾耀林[1] 

机构地区：[1]江南大学信息工程学院,无锡214122

出　　处：《计算机工程与应用》2005年第32期41-44,共4页Computer Engineering and Applications

摘　　要：移动立方体算法是目前最有影响的等值面构造方法,已经过了许多改进。现在采用的是三重线性插值模型,用三重线性插值计算等值面与体单元的交点。文章对三重线性插值生成的等值面进行了分析,分析了等值面的一些特点,重点讨论了等值面与边界体单元的交线的两种例外情况,基于这两种情况,给出了改进算法,最后通过实验验证了考虑这两种情况后算法的可行性。The Marching Cubes algorithm is the most influential method of visualising isosurfaces of a spatial field so far.h has been improved greatly by the following authors.Now it employs the model of trilinear interpolation on the interior of voxels,to compute the intersection of the isosurface with the voxel.This paper analyzes the isosurface of trilinear interpolation,the two possible exceptions of the intersection and the improved algorithm are given,finally the feasibility of the algorithm improved by considering these two exception is proved by the experiments.

关 键 词：体可视化 移动立方体 三维表面重建 等值面 三重线性插值 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]