Robin边界条件下光学CT正向问题的数值模拟  

The Study of the Forward Problem for the Optical Tomography Under Robin Boundary Condition

作　　者：乐建新[1] 王加俊[1] 

机构地区：[1]苏州大学电子信息学院,江苏苏州215021

出　　处：《激光与红外》2005年第5期378-382,共5页Laser & Infrared

基　　金：国家自然科学基金的资助(NO.30300088)

摘　　要：文章研究了Robin边界条件下光学层析成像的正向算法,进行了理论分析,给出了实验结果,实验结果符合理论分析的结果。并对将Robin边界条件和D irichlet边界条件下的结果进行比较、分析,得出两者的异同点。In this paper,the finite element method(FEM) for the forward problem of optical tomograpy under Robin boundary condition is described.We first analyze the theory of OT,and then display the results of experiment.From the analysis and results,we can find that they are coincident to each other.Compared with the Dirichlet boundary condition,we find that the results are a little different from bound due to the fact that the photon densities are not zero for Robin boundary condition.

关 键 词：光学层析成像 有限元法 扩散方程 中心、边界激励 Robin边界条件 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]