Publication detail

A New Algorithm for Electrical Impedance Tomography Inverse Problem

KŘÍŽ, T. DĚDKOVÁ, J.

Original Title

A New Algorithm for Electrical Impedance Tomography Inverse Problem

Type

conference paper

Language

English

Original Abstract

This paper proposes new technique for solution of electrical impedance tomography inverse problems. Usually, a set of voltage measurements is acquired from the boundaries of an investigated volume, whilst this is subjected to a sequence of low-frequency current patterns. In principle, measuring both the amplitude and the phase angle of the voltage can result in images of the electric conductivity and permittivity in the interior of a body. Alternating current patterns are preferred to DC to avoid polarization effects. In the usual frequency range (below 1 MHz) the field can be considered a steady current field, which is governed by the Laplace equation. It is well known that while the forward problem is well-posed, the inverse problem is nonlinear and highly ill-posed. The recently described methods are often based on deterministic or stochastic approach to solve mainly 2D problems. The aim of this paper is to present a new way for a successful image reconstruction to obtain high-quality reconstruction in electrical impedance tomography problems. Numerical results of an image reconstruction based on new technique are presented and compared.

Keywords

EIT, Level Set method

Authors

KŘÍŽ, T.; DĚDKOVÁ, J.

RIV year

2009

Released

23. 3. 2009

Publisher

The Electromagnetic Academy

Location

Cambridge

ISBN

978-1-934142-08-0

Book

PIERS Proceedings

ISBN

1559-9450

Periodical

Progress In Electromagnetics

State

United States of America

Pages from

132

Pages to

136

Pages count

5

BibTex

@inproceedings{BUT31438,
  author="Tomáš {Kříž} and Jarmila {Dědková}",
  title="A New Algorithm for Electrical Impedance Tomography Inverse Problem",
  booktitle="PIERS Proceedings",
  year="2009",
  journal="Progress In Electromagnetics",
  pages="132--136",
  publisher="The Electromagnetic Academy",
  address="Cambridge",
  isbn="978-1-934142-08-0",
  issn="1559-9450"
}