EIT imaging with the projection filter

  • Kim, Bong-Seok (Department of Electrical and Electronic Engineering, Cheju National University) ;
  • Kim, Min-Chan (Department of Chemical Engineering, Cheju National University) ;
  • Kim, Sin (Department of Nuclear and Energy Engineering, Cheju National University) ;
  • Kim, Kyung-Youn (Department of Electrical and Electronic Engineering, Cheju National University)
  • Published : 2003.10.22

Abstract

Electrical impedance tomography(EIT) is a relatively new imaging modality in which the internal impedivity distribution is reconstructed based on the known sets of injected currents and measured voltages on the surface of the object. In this paper, an effective dynamic EIT imaging scheme is presented based on the projection filtering to estimate the unknown resistivity distribution. In particular, pre-integration (pre-grouping) technique is employed to stabilize the inverse algorithm. We carried out computer simulations with synthetic data to illustrate the reconstruction performance of the proposed algorithm.

Keywords