基于MC算法的CT序列图像快速成型文件生成方法  

A METHOD OF RAPID PROTOTYPING FILE GENERATION FOR CT SEQUENCE IMAGES BASED ON MC ALGORITHM

作　　者：王新德[1] 李彬[1] 田联房[1] 

机构地区：[1]华南理工大学自动化科学院工程学院,广东广州510640

出　　处：《计算机应用与软件》2012年第8期98-100,172,共4页Computer Applications and Software

基　　金：中国博士后基金项目(20090450866);教育部博士点基金项目(200805610018);广东省教育部产学研结合项目(2009B090300057);华南理工大学中央高校基本科研业务费(2009ZM0077)

摘　　要：快速成型技术在医学领域有着广泛而重要的应用,为了从医学图像中得到快速成型文件,详细论述了MC(marchingcubes)算法生成STL文件的步骤及需要注意的问题,并将其与轮廓连接生成STL文件的方法进行比较,说明了所提方法优势及可行性。方法先对CT序列图像进行阈值分割、区域增长等图像预处理,然后用MC算法得到用三角片组成的几何模型,最后根据文件格式标准,生成STL文件,其中着重讨论了STL文件中三角面片顶点顺序如何确定这一问题。Rapid prototyping technology has extensive and important applications in medicine sector. In order to get rapid prototyping files from medical images, in the paper we dwell on the procedures of STL files generation with MC （marching cubes） algorithm and the problems requiring attention, and compare this method with the one that generating STL file with contour connection, as well as illustrate the advantages and feasibility of the method. First, the method conducts image pre-processing on CT sequence images such as threshold segmentation, region growing and so on, then it obtains the geometric model consisting of triangulated surfaces using MC algorithm, at last it generates the STL file according to standard file format. In the paper, emphasis is put on the issue of how to determine the vertices sequence of the triangulate surface in STL file.

关 键 词：快速成型文件 面绘制 MC算法 医学图像 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]