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理想材料零件的锥束CT投影仿真
引用本文:黄魁东,张定华,毛海鹏,刘远.理想材料零件的锥束CT投影仿真[J].计算机辅助设计与图形学学报,2007,19(2):157-162.
作者姓名:黄魁东  张定华  毛海鹏  刘远
作者单位: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,西安,710072
摘    要:针对锥束CT在理想材料零件研制中的应用需求,给出了基于拓展体素模型的CT仿真零件材料信息表示方法.在体素模型的投影图像仿真计算中,提出了一种三维射束与体素模型的快速遍历与求交算法,并结合Simpson积分公式实现了投影直线积分的高效高精度计算.实验结果验证了该算法的有效性.

关 键 词:锥束CT  理想材料零件  投影仿真  体素遍历  Simpson积分  理想材料零件  锥束  投影仿真  Components  Functional  Material  Ideal  Simulation  有效性  求交算法  结果验证  实验  高精度计算  线积分  积分公式  结合  遍历  快速  三维  仿真计算  投影图像
收稿时间:2006-05-05
修稿时间:2006-05-052006-10-08

Projection Simulation of Cone-Beam CT for Ideal Functional Material Components
Huang Kuidong,Zhang Dinghua,Mao Haipeng,Liu Yuan.Projection Simulation of Cone-Beam CT for Ideal Functional Material Components[J].Journal of Computer-Aided Design & Computer Graphics,2007,19(2):157-162.
Authors:Huang Kuidong  Zhang Dinghua  Mao Haipeng  Liu Yuan
Abstract:Focusing on the application demand of cone-beam CT in the research and development of ideal functional material components, an approach based on extended voxel model to express the material information of CT simulation components is presented. In the computation of projection simulation for voxel models, the paper proposed a new efficient method for voxel model traversal and intersection calculation along 3D ray beam, and employed Simpson integral formula to realize the projection linear integration with high speed and accuracy. Experimental result shows the availability of the method.
Keywords:cone-beam CT  ideal functional material components  projection simulation  voxel traversal  Simpson integral
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