摘要
采用双三次B样条函数作为待重建函数的逼近,得到一般的线性代数方程组;采用Tkhonov正则化方法求解该方程组,获得待重建函数的正则解。算例表明,正则解有较好的精度,表明了本文方法的有效性。
This paper uses double three order B splines as approximations of functionsto be reconstructed.Tikhonov regularization is employed to obtain a regular solution tothe image reconstruction from projections.Numerical results are given to show the effec-tiveness of this method.
出处
《CT理论与应用研究（中英文）》
1993年第3期30-34,共5页
Computerized Tomography Theory and Applications
关键词
图象重建
样条函数
正则化方法
Image reconstruction
Spline function
Regularization method
