Publication detail

Idenfitication of Conductivity of Electrodes using EIT Total Variation primal-dual method

DĚDEK, L., DĚDKOVÁ, J.

Original Title

Idenfitication of Conductivity of Electrodes using EIT Total Variation primal-dual method

English Title

Idenfitication of Conductivity of Electrodes using EIT Total Variation primal-dual method

Type

journal article - other

Language

en

Original Abstract

In electrical impedance tomography (EIT) currents are applied through the electrodes attached on the surface of the object, and the resulting voltages are measured using the same or additional electrodes. Internal conductivity distribution is recalculated from the measured voltages and currents. The contact conductance between the electrode and the object is a source of deformation field and it has to be taken into account in image reconstruction. As the physical dimensions of the volume conductivity and the contact conductivity are different, it is difficult to include both quantities in different regularization terms. In the paper we propose a simple modification model of contact conductivity so that it can be used in the total variation regularization term.

English abstract

In electrical impedance tomography (EIT) currents are applied through the electrodes attached on the surface of the object, and the resulting voltages are measured using the same or additional electrodes. Internal conductivity distribution is recalculated from the measured voltages and currents. The contact conductance between the electrode and the object is a source of deformation field and it has to be taken into account in image reconstruction. As the physical dimensions of the volume conductivity and the contact conductivity are different, it is difficult to include both quantities in different regularization terms. In the paper we propose a simple modification model of contact conductivity so that it can be used in the total variation regularization term.

Keywords

Electrical impedance tomography, Contact conductivity, Inverse problem, Regularization

RIV year

2004

Released

01.01.2004

Publisher

WSEAS

Location

Spojené státy americké

ISBN

960-8457-07-6

Book

WSEAS Transactions on systems

Edition

Issue 10, Vol. 3

Edition number

1

Pages from

3013

Pages to

3015

Pages count

3

BibTex


@article{BUT46186,
  author="Libor {Dědek} and Jarmila {Dědková}",
  title="Idenfitication of Conductivity of Electrodes using EIT Total Variation primal-dual method",
  annote="In electrical impedance tomography (EIT) currents are applied through the electrodes attached on the surface of the object, and the resulting voltages are measured using the same or additional electrodes. Internal conductivity distribution is recalculated from the measured voltages and currents. The contact conductance between the electrode and the object is a source of deformation field and it has to be taken into account in image reconstruction. As the physical dimensions of the volume conductivity and the contact conductivity are different, it is difficult to include both quantities in different regularization terms. In the paper we propose a simple modification model of contact conductivity so that it can be used in the total variation regularization term.",
  address="WSEAS",
  booktitle="WSEAS Transactions on systems",
  chapter="46186",
  edition="Issue 10, Vol. 3",
  institution="WSEAS",
  journal="WSEAS Transactions on Systems",
  number="3",
  volume="10",
  year="2004",
  month="january",
  pages="3013",
  publisher="WSEAS",
  type="journal article - other"
}