摘要
从理论上研究了利用正向模型求解逆问题的这代算法，特别是其中Jacobi矩阵的有限元解法；引入了图像恢复领域广泛采用的规则化方法用于处理逆问题中的奇异性问题；作为总结，最后给出了FEM法求解光学CT问题的完整步骤。
In this paper, the iterative algorithm for the inverse problem solution of optical CT. Using the forward model is studied in detail, with special emphasis on the FEM solution for Jacobian of the forward operator. The regularization method that has been widely used in image restoration is adopted for solving ill-conditionness of the inverse problem. Finally, the complete strategy for the FEM solution to the optical tomography is given as a conclusion.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1996年第4期494-499,共6页
Acta Optica Sinica
关键词
光学断层析像
有限元
图像重建
光学CT
optical tomography, finite element method (FEM ), image reconstruction
