WIT Press


The Use Of A Coarse BEM Mesh To Speed Up The Optimisation Process In Inverse Electrical Impedance Tomography

Price

Free (open access)

Paper DOI

10.2495/BE040241

Volume

37

Pages

10

Published

2004

Size

226 kb

Author(s)

N.S. Mera, L. Elliott & D.B. Ingham

Abstract

A reduced model technique based on a coarse boundary element method (BEM) mesh is developed in order to increase the rate of convergence of a genetic algorithm (GA) used for solving a non-destructive evaluation problem. The inverse problem investigated consists of identifying the geometry of discontinuities in a conductive material with isotropic conductivity from Cauchy data measurements taken on the boundary. In this study we use a coarse BEM to provide problem specific information for the GA operators in order to detect efficiently, from a computational time point of view, an isotropic inclusion, such as a circle. The genetic algorithms based method developed is found

Keywords