Accurate reconstruction algorithm of the complex conductivity distribution in three dimensions

In electrical impedance tomography, an inverse problem has to be solved to reconstruct the complex conductivity distribution /spl kappa/=/spl sigma/+j/spl omega//spl epsiv/. The problem is ill posed, and therefore, a regularization has to be used. The aim is to reconstruct, as accurately as possible...

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Veröffentlicht in:IEEE transactions on magnetics 2004-03, Vol.40 (2), p.1144-1147
Hauptverfasser: Hollaus, K., Gerstenberger, C., Magele, C., Hutten, H.
Format: Artikel
Sprache:eng
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Zusammenfassung:In electrical impedance tomography, an inverse problem has to be solved to reconstruct the complex conductivity distribution /spl kappa/=/spl sigma/+j/spl omega//spl epsiv/. The problem is ill posed, and therefore, a regularization has to be used. The aim is to reconstruct, as accurately as possible, both the electric conductivity /spl sigma/ and the electric permittivity /spl epsiv/ in three dimensions using finite elements of the second order for solving the forward problem. To this end, a new reconstruction algorithm based on a priori information has been developed.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2004.825305