Title :
Back-Projection Reconstruction Algorithm for Magnetic Induction Tomography Based on Magnetic Field Lines Distribution
Author :
Ke, Li ; Lin, Xiao ; Du, Qiang
Author_Institution :
Inst. of Biomed. & Electromagn. Eng., Shenyang Univ. of Technol., Shenyang, China
Abstract :
Magnetic induction tomography is a non-invasive imaging technology for visualization of the electrical property inside inhomogeneous media. In this paper, a back-projection image reconstruction algorithm based on the magnetic field lines distribution is presented. Firstly, the eddy current problem of MIT was solved by the finite element method. Secondly, the back-projection areas were divided based on the magnetic field lines distribution. Finally, image reconstruction was realized by projecting the phase shifts which were detected by detection coils along the projection areas. The results have shown that the back-projection algorithm for MIT performs well in reflecting the location and shape information of the perturbation.
Keywords :
coils; data visualisation; eddy currents; electromagnetic induction; finite element analysis; image reconstruction; inhomogeneous media; magnetic fields; power distribution lines; tomography; MIT; backprojection image reconstruction algorithm; detection coil; eddy current problem; finite element method; inhomogeneous media; magnetic field line distribution; magnetic induction tomography; noninvasive imaging technology; phase shift; visualization; Coils; Conductivity; Finite element methods; Image reconstruction; Magnetic fields; Magnetic resonance imaging; Tomography;
Conference_Titel :
Electromagnetic Field Problems and Applications (ICEF), 2012 Sixth International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-1-4673-1333-9
DOI :
10.1109/ICEF.2012.6310298