空间相关MC算法的VTK实现  

Marching cubes algorithm based on space correlation using VTK

作　　者：顾耀林[1] 袁江琛[1] 

机构地区：[1]江南大学信息工程学院,江苏无锡214122

出　　处：《计算机工程与设计》2007年第13期3160-3162,共3页Computer Engineering and Design

摘　　要：移动立方体是面绘制的经典算法,但要求对所有空间所有体素进行处理,执行效率不高。通过对空间相关性进行研究,即六面体体素如果与等值面相交,则等值面一定会在该六面体的6个面的方面延续,对标准的MC算法进行改进,只处理那些与等值面相交的六面体体素。可视化工具包封装了许多常用的可视化算法,为研究人员提供了极大的便利。通过空间相关性,对VTK中已有库函数vtkMarchingCubes进行改进,提高了原有算法的执行速度,同时又扩充了VTK已有的类。Marching cubes is a classical algorithm for surface rendering. But it is required to deal with all the voxel in the space, so it is inefficient. By researching space correlation, which ifvoxel intersects with the isosurface, the isosurface will be continued in six di- rections, a new algorithm is supported. Visualization toolkit contains a variety of visualization algorithms in common use. The researchers with great advantage is provided. Using space correlation, the class vtkMarchingCubes in VTK is improved. The execution rate is advanced and the VTK class is extended.

关 键 词：三维重建 面绘制 等值面 移动立方体 空间相关 可视化工具包 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]