基于锥束CT的两类三维表面重构方法比较研究  

Compare Research on Two Classes of 3D Surface Reconstruction Methods Based on Cone Beam Computed Tomography

作　　者：黄魁东[1] 张定华[1] 王凯[1] 毛海鹏[1] 刘晶[1] 

机构地区：[1]西北工业大学现代设计与集成制造技术教育部重点实验室,陕西西安710072

出　　处：《计算机应用研究》2006年第3期162-164,共3页Application Research of Computers

基　　金：航空科学基金资助项目(00H53076);西北工业大学研究生创业种子基金资助项目(Z20030052)

摘　　要：目前锥束CT的三维重构主要采用面绘制,其方法有两类,即体素级重构和切片级重构。在对比两类方法的基础上,提出了一种新的二维切片轮廓重构与三维表面重构相结合的切片级重构方法,然后以标准MC算法和该算法分别对两个实例进行重构并比较。结果表明,该算法更适合工业产品的三维表面重构。Surface Rendering is the main method adopted in Cone Beam Computed Tomography for 3 D surface reconstruction currently,and it includes two classes of methods： voxel-based reconstruction and slice-based reconstruction. In this paper, we compare the two methods and propose a new slice-based reconstruction algorithm based on 2D slice contour reconstruction and 3D surface reconstruction. Then we use of the standard MC algorithm and the new algorithm to reconstruct two instances respectively. The experiments show that slice-based reconstruction is more appropriate for the 3D reconstruction of industrial productions.

关 键 词：锥束CT 三维表面重构 体素级重构 切片级重构 MC算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]