EIT Image Reconstruction by Simultaneous Perturbation Method

  • Kim, Ho-Chan (Department of Electrical Engineering, Cheju National University) ;
  • Boo, Chang-Jin (Department of Electrical Engineering, Cheju National University) ;
  • Lee, Yoon-Joon (Department of Nuclear and Energy Engineering, Cheju National University)
  • Published : 2004.08.25

Abstract

In electrical impedance tomography (EIT), various image reconstruction algorithms have been used in order to compute the internal resistivity distribution of the unknown object with its electric potential data at the boundary. Mathematically the EIT image reconstruction algorithm is a nonlinear ill-posed inverse problem. This paper presents a simultaneous perturbation method as an image reconstruction algorithm for the solution of the static EIT inverse problem. Computer simulations with the 32 channels synthetic data show that the spatial resolution of reconstructed images by the proposed scheme is improved as compared to that of the mNR algorithm at the expense of increased computational burden.

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