Title :
Refined cartesian mesh for modeling in electrical capacitance tomography
Author :
Smolik, Waldemar T. ; Kryszyn, Jacek
Author_Institution :
Inst. of Radioelectron., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
This paper presents modeling of electric potential distribution using a refined Cartesian mesh in electrical capacitance tomography. The application of the thickened Cartesian discretization mesh in a forward problem solver allows more accurate discrete description of cylindrical elements of tomographic sensor. The irregular structured grid enables possibility to increase precision of capacitance measurement simulations. A tree structure was used for description of refined mesh nodes to obtain fast computations. The .NET based software library was created. A set of MATLAB functions was created to provide an interface between the library and the MATLAB environment. The results of electrical field computation were presented.
Keywords :
bioelectric potentials; capacitance measurement; electric impedance imaging; mathematics computing; medical image processing; mesh generation; .NET based software library; MATLAB environment; MATLAB functions; capacitance measurement simulation; cylindrical element; discrete description; electric potential distribution modeling; electrical capacitance tomography; electrical field computation; irregular structured grid; refined Cartesian mesh; refined cartesian mesh; refined mesh node description; thickened Cartesian discretization mesh; tomographic sensor; tree structure; Capacitance; Electric potential; Electrodes; Finite element analysis; Mathematical model; Permittivity; Sensitivity; Electrical capacitance tomography; Electromagnetic field; FEM; Sensitivity matrix;
Conference_Titel :
Imaging Systems and Techniques (IST), 2013 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5790-6
DOI :
10.1109/IST.2013.6729724
