A Novel Method for the Numerical Solution of a Hybrid Inverse Problem of Electrical Conductivity Imaging

被引:0
作者
Timonov A. [1 ,2 ]
机构
[1] St.Petersburg Department of Steklov Institute of Mathematics, St. Petersburg
[2] University of South Carolina (Upstate campus), Columbia, SC
基金
美国国家科学基金会;
关键词
D O I
10.1007/s10958-023-06517-8
中图分类号
学科分类号
摘要
A novel method for the numerical solution of a hybrid (coupled physics) inverse problem is proposed. Based on a regularized weighted mean curvature flow equation, this method can be considered as an alternative to the variational approach to solving weighted least gradient Dirichlet problems arising in electrical conductivity imaging, in particular, in Current Density Impedance Imaging (CDII). Utilizing the Sternberg–Ziemer theory, convergence of regularized solutions to a unique function of weighted least gradient is established. The numerical study is conducted to demonstrate the practicability and computational effectiveness of the proposed method. © 2023, Springer Nature Switzerland AG.
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页码:511 / 526
页数:15
相关论文
共 41 条
[21]  
Moradifam A., Nachman A., Tamasan A., Uniqueness of minimizers of weighted least gradient problems arising in hybrid inverse problems, Calculus of Variations and Pdes, 57, (2018)
[22]  
Nachman A., Tamasan A., Timonov A., Conductivity imaging with a single measurements of boundary and interior data, Inverse Problems, 23, pp. 2556-2563, (2007)
[23]  
Nachman A., Tamasan A., Timonov A., Recovering the conductivity from a single measurement of interior data, Inverse Problems, 25, (2009)
[24]  
Nachman A., Tamasan A., Timonov A., Current Density Impedance Imaging, Contemp. Math., 25, pp. 135-149, (2010)
[25]  
Nachman A., Tamasan A., Timonov A., Reconstruction of planar conductivities in subdomains from incomplete data, SIAM J. Appl. Math., 70, pp. 3342-3362, (2010)
[26]  
Nachman A., Tamasan A., Veras J., A weighted minimum gradient problem with complete electrode model boundary conditions for conductivity imaging, SIAM J. Appl. Math., 76, pp. 1321-1343, (2016)
[27]  
Oberman A.M., A convergent monotone difference scheme for motion of level sets by mean curvature, Numer. Math., 99, pp. 365-379, (2004)
[28]  
Osher S., Sethian J., Fronts propagating with curvature-dependent speed: algorithms based on Hamilton-Jacobi formulations, J. Comput. Phys., 79, pp. 12-49, (1988)
[29]  
Rothe E., Zweidimensionale parabolishe Randwertaufgaben als Grenzfall eidimensionaler Randwertaufgaben, Math. Ann., 102, pp. 650-670, (1930)
[30]  
Samarskii A.A., On the convergence and accuracy of homogeneous difference schemes for one-dimensional and multidimensional parabolic equations, USSR Comp. Math. Math. Phys., 2, 4, pp. 654-696, (1963)