A numerical solver based on B-splines for 2D vector field tomography in a refracting medium
A numerical solver based on B-splines for 2D vector field tomography in a refracting medium
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基于 B 样条的折射介质中二维矢量场断层扫描数值求解器
DOI:
10.1016/j.matcom.2013.10.002
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
T. Schuster
中科院分区:
文献类型:
--
作者:
E.Y. Derevtsov;I.E. Svetov;Y.S. Volkov;T. Schuster
Efficient and stable numerical solvers for vector tomography problems taking refractions into account are subject of current research. This article is concerned with the problem of reconstructing a 2D-vector field in a refracting medium from its known longitudinal or transverse ray transform. The refraction is modeled using a Riemannian metric in the domain under consideration. We propose a numerical solver that is based on the least squares method where we use a finite basis consisting ofB-splines as basis functions. In that sense the method can be seen as a projection method for minimizing anL2-data fitting term. Numerical simulations show a good performance of that method, also compared to methods relying on exact inversion formulas.
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影响因子:
0.3
作者:
I. E. Svetov;A. Polyakova
通讯作者:
A. Polyakova
影响因子:
1.3
作者:
S. Holman;P. Stefanov
通讯作者:
P. Stefanov
影响因子:
0.3
作者:
E. Derevtsov
通讯作者:
E. Derevtsov
影响因子:
0.3
作者:
E. Derevtsov;A. G. Kleshchev;V. Sharafutdinov
通讯作者:
V. Sharafutdinov
DOI:
10.1137/100786770
发表时间:
2011
期刊:
SIAM J. Imaging Sci.
影响因子:
--
作者:
Tim Pfitzenreiter;T. Schuster
通讯作者:
T. Schuster