Title :
A comparative study of capacitance image reconstruction
Author :
Yossontikul, C. ; Ungpinitpong, P. ; Chitsakul, K. ; Sangworasil, M.
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
Three image reconstruction algorithms for electrical capacitance tomography (ECT): linear back projection based on projected Landweber iteration, algebraic reconstruction technique (ART) and simultaneous algebraic reconstruction technique (SART) were compared both for image quality and rate of convergence. A model of square sensor with 8 electrodes was employed in this study for experimental evaluation. The capacitance simulation is also described briefly. The experimental results have demonstrated that SART provides the best image quality and the effective rate of convergence.
Keywords :
image reconstruction; iterative methods; tomography; capacitance image reconstruction; electrical capacitance tomography; linear back projection; projected Landweber iteration; simultaneous algebraic reconstruction technique; square sensor; Biomedical measurements; Capacitance measurement; Dielectric measurements; Electrical capacitance tomography; Electrodes; Image quality; Image reconstruction; Iterative algorithms; Subspace constraints; X-ray tomography;
Conference_Titel :
Communications, Computers and signal Processing, 2003. PACRIM. 2003 IEEE Pacific Rim Conference on
Print_ISBN :
0-7803-7978-0
DOI :
10.1109/PACRIM.2003.1235959
