DocumentCode :
1771664
Title :
Image reconstruction by electrical impedance tomography using multi-objective simulated annealing
Author :
de Castro Martins, Thiago ; Vieira Fernandes, Amanda ; de Sales Guerra Tsuzuki, Marcos
Author_Institution :
Escola Politec., Univ. de Sao Paulo, Sao Paulo, Brazil
fYear :
2014
fDate :
April 29 2014-May 2 2014
Firstpage :
185
Lastpage :
188
Abstract :
Electrical Impedance Tomography (EIT) image reconstruction can be approached as an optimization problem, intending to minimize the Euclidean distance between the potential values measured in the cross section of the body and the calculated values, for every pattern of current applied, through modelling the problem by the Finite Elements Method (FEM). This formulation is known to be ill-posed, which increases dependence of the EIT on the reconstruction algorithm, which must have a regularization technique to improve the conditioning of the problem. Therefore, this project proposes the use of a Multi-Objective Optimization algorithm in order to find the set of optimal solutions to the problem, aiming to minimize both the Euclidean distance and a regularization parameter.
Keywords :
electric impedance imaging; finite element analysis; image reconstruction; medical image processing; minimisation; simulated annealing; EIT; Euclidean distance; FEM; electrical impedance tomography; finite elements method; image reconstruction; minimization; multiobjective optimization algorithm; multiobjective simulated annealing; regularization technique; Conductivity; Finite element analysis; Image reconstruction; Impedance; Linear programming; Optimization; Tomography; Electrical Impedance Tomography; Inverse Problems; Multi-objective Optimization; Regularization; Simulated Annealing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Imaging (ISBI), 2014 IEEE 11th International Symposium on
Conference_Location :
Beijing
Type :
conf
DOI :
10.1109/ISBI.2014.6867840
Filename :
6867840
Link To Document :
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