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Phantom divided into 840 finite elements

Speeding up the Tikhonov regularization iterative procedure in solving the inverse problem of electrical impedance tomography

Irina A. Sushko, A. I. Rybin


Algorithms of enhancing the speed of Tikhonov regularization algorithm for the conductivity zones method have been proposed; these algorithms make it possible to organize an iterative procedure with logarithmic step and evaluate the result of such iterative procedure through a single inversion of the matrix generated from the matrices of derivatives of phantom contour-edge voltages with respect to the surface conductivities of zones.


electrical impedance tomography; conductivity zones; regularization; inverse problem; matrix conditionality; phantom; finite elements method; correction of surface conductivities

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