Title :
Impedance image reconstruction using neural networks
Author :
Nejatali, A. ; Ciric, I.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
Abstract :
Impedance imaging can be used in a variety of practical applications, such as medical diagnosis, geological exploration, multicomponent fluid flow analysis, and quality control. We consider the electrical impedance imaging where the spatial conductivity distribution within the object is reconstructed based on the voltage-current relationship measured by using a system of electrodes located on the surface of the object. The solution of the associated inverse problem requires a substantial amount of computation. In this paper, we present a new neural network architecture, with a relatively simple and inexpensive hardware, that can be employed efficiently to solve this inverse problem.
Keywords :
backpropagation; electric impedance imaging; image reconstruction; iterative methods; multilayer perceptrons; electrical impedance imaging; geological exploration; impedance image reconstruction; inverse problem; medical diagnosis; multicomponent fluid flow analysis; neural networks; quality control; spatial conductivity distribution; surface electrodes; voltage-current relationship; Conductivity; Fluid flow; Geology; Image analysis; Image reconstruction; Inverse problems; Medical diagnosis; Neural networks; Quality control; Surface impedance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631510