TY - GEN
T1 - Simultaneous reconstruction of the boundary shape and conductivity in 2D electrical impedance tomography
AU - Soleimani, Manuchehr
AU - Sadleir, Rosalind
AU - Jersey-Willuhn, Karen
PY - 2003/1/1
Y1 - 2003/1/1
N2 - The uncertainty of the boundary shape is a major source of spurious artefacts in electrical impedance tomography (EIT), as it can be one of the major causes of the error in the measured voltages. In this study we show that even a very small change on the boundary can create artefacts on EIT images depending on the conductivity contrast. The external boundary can be parameterised by the coordinate data of the position of the electrodes. This is a suitable way to parameterise the boundary shape, as the positions of the electrodes are the most sensitive area on the boundary. The aim of this paper is to reconstruct the position of the electrodes and the conductivity image simultaneously. The issues related to the error in the positions of the electrodes are discussed. In a numerical example we show simultaneous reconstruction of the internal conductivity map and the position of the electrodes.
AB - The uncertainty of the boundary shape is a major source of spurious artefacts in electrical impedance tomography (EIT), as it can be one of the major causes of the error in the measured voltages. In this study we show that even a very small change on the boundary can create artefacts on EIT images depending on the conductivity contrast. The external boundary can be parameterised by the coordinate data of the position of the electrodes. This is a suitable way to parameterise the boundary shape, as the positions of the electrodes are the most sensitive area on the boundary. The aim of this paper is to reconstruct the position of the electrodes and the conductivity image simultaneously. The issues related to the error in the positions of the electrodes are discussed. In a numerical example we show simultaneous reconstruction of the internal conductivity map and the position of the electrodes.
KW - Boundary shape
KW - Electrical impedance tomography
KW - Image reconstruction
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M3 - Conference contribution
AN - SCOPUS:3242678643
T3 - 3rd World Congress on Industrial Process Tomography
SP - 695
EP - 700
BT - 3rd World Congress on Industrial Process Tomography
PB - International Society for Industrial Process Tomography
T2 - 3rd World Congress on Industrial Process Tomography
Y2 - 2 September 2003 through 5 September 2003
ER -