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Proceedings Paper

An EIT reconstruction algorithm: comparison of one-step and iterative versions
Author(s): Agnieszka Janczulewicz; Jerzy Wtorek
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Paper Abstract

A reconstruction algorithm based on applying of a current pattern using electrodes is considered in the paper. A resulting voltage distribution between electrodes is measured. To improve an accuracy of the reconstructed image two FEM models are used -- a dense one in the forward problem and coarse one in inverse problem. A one-step version of the algorithm is examined and the results are compared with these obtained from iterative version of the algorithm. The reconstruction algorithm based on Levenberg-Marquardt approach is utilized. It has been found that the errors of images depend on object properties and can vary significantly in one-step version of reconstruction algorithm.

Paper Details

Date Published: 7 July 2004
PDF: 7 pages
Proc. SPIE 5505, Optical Methods, Sensors, Image Processing, and Visualization in Medicine, (7 July 2004); doi: 10.1117/12.577929
Show Author Affiliations
Agnieszka Janczulewicz, Gdansk Univ. of Technology (Poland)
Jerzy Wtorek, Gdansk Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5505:
Optical Methods, Sensors, Image Processing, and Visualization in Medicine
Antoni Nowakowski; Bogdan B. Kosmowski, Editor(s)

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