title: Reconstruction of impedance images using a modified perturbation method.
abstract: A modified perturbation method (MPM) arising from the replacement of the sensitivity matrix by the Jacobian matrix is presented. Our results have been made using an array processor board with four T-800 INMOS transputers. The numerical algorithm has been matched to the new system and the procedure reached a minimum 50 times faster than for a single PC/AT with mathematical co-processor. Several phantoms have been reconstructed. From the results one can see the applicability of the MPM algorithm to complicated models.
authors.affiliation: Department of Electrical Engineering, Demokritos University of Thrace, Xanthi, Greece.
authors.forename: G A
authors.initials: GA
authors.lastname: Kyriacou
authors.forename: C S
authors.initials: CS
authors.lastname: Koukourlis
authors.forename: J N
authors.initials: JN
authors.lastname: Sahalos
authors.forename: K
authors.initials: K
authors.lastname: Batas
mesh_terms: D000465:Algorithms; D004553:Electric Conductivity; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008961:Models, Structural; D014054:Tomography / Q000379:methods*