Direct image reconstruction for electromagnetic tomography(EMT) by using the dbar method

Author

Cao, Zhang ; Xu, Lijun ; Liu, Xingbin

Author_Institution

Sch. of Instrum. Sci. & Opto-Electron. Eng., Beihang Univ., Beijing, China

fYear

2011

fDate

10-12 May 2011

Firstpage

1

Lastpage

4

Abstract

A direct reconstruction method, termed as the dbar method for electromagnetic tomography (EMT) is introduced. It is suitable to reconstruct distributions with high permeability and low conductivity as well as small size distributions of high conductivity. By using the dbar method, the permeability/conductivity distribution in any part of the region of interest can be obtained directly and independently. Simulated data for EMT with sixteen coils were obtained in two dimensions. Compared with the Calderon´s method, the dbar method requires less prior information of the distribution to reconstruct high contrast images. The reconstructed results validated the feasibility of the method.

Keywords

coils; electric potential; image reconstruction; tomography; voltage measurement; EMT; conductivity distribution; dbar method; direct image reconstruction; electromagnetic tomography; high contrast image reconstruction; permeability distribution; region of interest; Coils; Conductivity; Equations; Image reconstruction; Mathematical model; Permeability; Tomography; conductivity; dbar method; direct reconstruction method; electromagnetic tomography; permeability;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE

Conference_Location

Binjiang

ISSN

1091-5281

Print_ISBN

978-1-4244-7933-7

Type

conf

DOI

10.1109/IMTC.2011.5944075

Filename

5944075