基于改进光线投影算法的混凝土CT三维重建研究  

Three-dimension Reconstruction Technique of Concrete CT Images Based on Modified Ray-casting

作　　者：赵亮[1] 李昌华[1] 陈登峰[1] 党发宁[2] 王丽丽[1] 

机构地区：[1]西安建筑科技大学信息与控制工程学院,西安710055 [2]西安理工大学岩土工程研究所,西安710048

出　　处：《光子学报》2011年第10期1571-1576,共6页Acta Photonica Sinica

基　　金：国家自然科学基金(No.50878176);国家自然科学基金重点项目(No.90510017);陕西省教育厅专项计划研究项目(No.2010JK640);西安市科技计划项目(No.CXY1014(3))资助

摘　　要：混凝土计算机断层成像试验图像细观研究多集中在二维横切面上,而混凝土计算机断层成像三维重建研究非常少,使混凝土计算机断层成像试验图像细观研究受到了局限,不利于全面分析在各个应力情况下混凝土的受力情况.本文提出一种可视化平台下基于改进光线投射法的混凝土计算机断层成像图像三维重构新技术,并进行可视化系统的实现.结果表明:本文提出的混凝土计算机断层成像图像三维重构方法快速、真实,为建立准确的混凝土材料数值细观模型提供了一种有效辅助方法,具有重要的应用意义.The study of concrete based on CT Images has been a heated issue in recent years. Normally the study focuses on 2-D meso--concrete image, but sutdy on the construction of 3-D meso-concrete are not paid much attention to which limits the scope of the research and intervene with the overall analysis of calculation on the forces in any circumstances. Owing to this point, The author offers a new tech-VTK system based on the ray-casting which also can achieve visualization. After tests, the new method is obviously more accurate and effective in guidance to build concrete material numerical model. In short, it is instructive and significant to solve the problems in this field.

关 键 词：混凝土CT图像 三维重构 改进光线投影法 可视化工具 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]