Title :
An application of a regular square mesh in a forward problem solver in electrical capacitance tomography
Author :
Smolik, Waldemar T. ; Radomski, Dariusz
Author_Institution :
Inst. of Radioelectron., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
Electrical capacitance tomography (ETC) is a technique dedicated for object imaging basing on visualization of spatial permittivity distribution of materials which they are made of. An image reconstruction procedure requires a numerical solution of a general Laplace equation using finite element methods basing on a discrete mesh spanned on the space inclusive inside of a tomographic sensor and solution of an underdetermined liner equation system using an iterative method. The aim of this work is an analysis of an influence of mesh resolution on quality of reconstructed images in electrical capacitance tomography. This evaluation was performed on the base of image reconstruction experiments with numerical and physical phantoms. The computations were made using own Matlab´s toolbox - ECTsim.
Keywords :
Laplace equations; data visualisation; electric impedance imaging; finite element analysis; image reconstruction; iterative methods; permittivity; problem solving; Laplace equation; electrical capacitance tomography; finite element methods; forward problem solver; image reconstruction; iterative method; liner equation system; object imaging; regular square mesh; spatial permittivity distribution; tomographic sensor; visualization; Capacitance; Capacitance measurement; Image reconstruction; Image resolution; Mathematical model; Permittivity; Sensitivity; electrical capacitance tomography; finite element method; forward problem; image reconstruction; inverse problem;
Conference_Titel :
Imaging Systems and Techniques (IST), 2011 IEEE International Conference on
Conference_Location :
Penang
Print_ISBN :
978-1-61284-894-5
DOI :
10.1109/IST.2011.5962210
