TITLE:
Anisotropic TV Regularization in Electrical Impedance Tomography: An Experimental Study
AUTHORS:
Yanying Wang
KEYWORDS:
Electrical Impedance Tomography, Anisotropic Total Variation, Ill-Posedness
JOURNAL NAME:
Engineering,
Vol.14 No.3,
March
25,
2022
ABSTRACT: Total variation (TV) regularization method is a typical method to preserve the discontinuities structure in EIT. Isotropic TV and anisotropic TV are two well-known variants of TV. The main differences between them are that the latter tends to distort the reconstructed internal inhomogeneities along the coordinate axis. In this article, we adopt the alternating direction method of multipliers (ADMM) to overcome the non-differentiability of the anisotropic TV and verify the characteristics of anisotropic TV regularization by the tank experiments.