Detail publikace

Evaluation of thin layer conductivity in a volume using Electrical Impedance Tomography

Originální název

Evaluation of thin layer conductivity in a volume using Electrical Impedance Tomography

Anglický název

Evaluation of thin layer conductivity in a volume using Electrical Impedance Tomography

Jazyk

en

Originální abstrakt

We propose anew formulation in electrical impedance tomography (EIT) for recovering the surface discontinuous coefficients in an elliptic problem by using the least squares and the Tikhonov regularization. Conductive thin layers of known geometry, but of unknown surface conductivity are immersed in a medium of known volume conductivity. The forward problem is solved by the Finite Element Method (FEM) applied to the discretized continuity equation. It is assumed that the surface conductivity is constant on individual edges of FEM grid. This new method can be applied to solve problems both in medical imaging and in industrial applications, where it can be used for the modelling of anisotropy in conductivity.

Anglický abstrakt

We propose anew formulation in electrical impedance tomography (EIT) for recovering the surface discontinuous coefficients in an elliptic problem by using the least squares and the Tikhonov regularization. Conductive thin layers of known geometry, but of unknown surface conductivity are immersed in a medium of known volume conductivity. The forward problem is solved by the Finite Element Method (FEM) applied to the discretized continuity equation. It is assumed that the surface conductivity is constant on individual edges of FEM grid. This new method can be applied to solve problems both in medical imaging and in industrial applications, where it can be used for the modelling of anisotropy in conductivity.

Dokumenty

BibTex


@inproceedings{BUT11489,
  author="Libor {Dědek} and Jarmila {Dědková}",
  title="Evaluation of thin layer conductivity in a volume using Electrical Impedance Tomography",
  annote="We propose anew formulation in electrical impedance tomography (EIT) for recovering the surface discontinuous coefficients in an elliptic problem by using the least squares and the Tikhonov regularization. Conductive thin layers of known geometry, but of unknown surface conductivity are immersed in a medium of known volume conductivity. The forward problem is solved by the Finite Element Method (FEM) applied to the discretized continuity equation. It is assumed that the surface conductivity  is constant on individual edges of FEM grid. This new method can be applied to solve problems both in medical imaging and in industrial applications, where it can be used for the  modelling of anisotropy in conductivity.",
  address="VUTIUM Press, Brno",
  booktitle="Analysis of biomedical signals and images, 17th int. Eurasip conference",
  chapter="11489",
  institution="VUTIUM Press, Brno",
  year="2004",
  month="january",
  pages="173-175",
  publisher="VUTIUM Press, Brno",
  type="conference paper"
}