An algorithm and simulation of the inverse problem of a low-frequency current field (in electrical impedance imaging)

摘要

A novel algorithm is obtained for solving the inverse problem of the low-frequency current field. This algorithm is obtained by using the theory of the generalized incremental linear function combined with the finite-element method. Using this approach, conductivity variations in the depth region can be found. The convergence is achieved quickly. A variety of regions in which conductivities vary in different patterns were calculated by computer simulation and phantom experiment.