Publication detail

Comparative Study of Jacobian Calculation Techniques in Electrical Impedance Tomography

BRANČÍK, L.

Original Title

Comparative Study of Jacobian Calculation Techniques in Electrical Impedance Tomography

Type

conference paper

Language

English

Original Abstract

The electrical impedance tomography is a means how to localize inhomogeneities in some bordered homogenous medium when the object under investigation is accessible to the measuring only at specific points of its boundary. In the method various optimization techniques are in use. For their successful application it is useful to determine Jacobian which helps to accelerate an iterative process. In the paper two ways of Jacobian calculation are compared above all from the point of view of the CPU time. Namely, the first method is based on the reciprocity theorem application, the second one then on the direct differentiation of the nodal-analysis matrix equation. Both methods utilize a precomputed properly chosen finite-element mesh, and has been programmed in the Matlab language environment.

Keywords

Jacobian, Sensitivity, Electrical impedance tomography, Reciprocity theorem, Nodal analysis method

Authors

BRANČÍK, L.

RIV year

2004

Released

1. 9. 2004

Location

Zakopane

ISBN

83-916444-4-8

Book

Proceedings of VI. International Workshop "Computational Problems of Electrical Engineering"

Pages from

101

Pages to

104

Pages count

4

URL

http://www.iem.pw.edu.pl/cpee/CD/

BibTex

@inproceedings{BUT11498,
  author="Lubomír {Brančík}",
  title="Comparative Study of Jacobian Calculation Techniques in Electrical Impedance Tomography",
  booktitle="Proceedings of VI. International Workshop {"}Computational Problems of Electrical Engineering{"}",
  year="2004",
  pages="4",
  address="Zakopane",
  isbn="83-916444-4-8",
  url="http://www.iem.pw.edu.pl/cpee/CD/"
}