Improving image quality in Electrical Impedance Tomography (EIT) using Projection Error Propagation-based Regularization (PEPR) technique: A simulation study

Tushar Kanti Bera, Samir Kumar Biswas, K. Rajan, J. Nagaraju

Abstract


A Projection Error Propagation-based Regularization (PEPR) method is proposed and the reconstructed image quality is improved in Electrical Impedance Tomography (EIT). A projection error is produced due to the misfit of the calculated and measured data in the reconstruction process. The variation of the projection error is integrated with response matrix in each iterations and the reconstruction is carried out in EIDORS. The PEPR method is studied with the simulated boundary data for different inhomogeneity geometries. Simulated results demonstrate that the PEPR technique improves image reconstruction precision in EIDORS and hence it can be successfully implemented to increase the reconstruction accuracy in EIT.>

doi:10.5617/jeb.158
J Electr Bioimp, vol. 2, pp. 2-12, 2011


Keywords


electrical impedance tomography, projection error propagation-based regularization (PEPR), simulated boundary potentials, image reconstruction, forward problem, inverse problem, finite element method.

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