Title :
2D ECT for sensors of non-circular cross sections using the factorization method
Author :
Cao, Zhang ; Xu, Lijun ; Fan, Wenru ; Wang, Huaxiang
Author_Institution :
Sch. of Instrum. Sci. & Opto-Electron. Eng., Beihang Univ., Beijing, China
Abstract :
The factorization method was introduced to electrical capacitance tomography for sensors of non-circular cross sections in this paper. Unlike the traditional methods based on sensitivity theorem, it is a direct algorithm of the image reconstruction, as neither matrix inversion nor iterative process is needed. The reconstruction process was simple, as the test function was calculated according to sensors of circular cross sections. The reconstructed results are obtained for sensors of non-circular cross sections by using the conformal transformation. Simulation results validated the feasibility and effectiveness of the factorization method in electrical capacitance tomography.
Keywords :
conformal mapping; electric impedance imaging; image reconstruction; image sensors; 2D ECT; conformal transformation; direct algorithm; electrical capacitance tomography; factorization method; image reconstruction; noncircular cross section; sensitivity theorem; sensors; Capacitive sensors; Chemical sensors; Electrical capacitance tomography; Image reconstruction; Image sensors; Iterative algorithms; Iterative methods; Sensor arrays; Shape; Testing; direct algorithm; electrical capacitance tomography; non-circular cross section; the factorization method;
Conference_Titel :
Imaging Systems and Techniques (IST), 2010 IEEE International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
978-1-4244-6492-0
DOI :
10.1109/IST.2010.5548445
