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Image reconstruction in electrical capacitance tomography based on modified generalized Landweber method  

Lee Seong-Hun (Depts. of Mechatronics, DGIST)
Jang Jae-Duck (Depts. of BioSystems, KAIST)
Kim Yong-Sung (Depts. of Electronic Engineering, Kyungpook National University)
Kim Kyung-Youn (Depts. of Electronic Engineering, Cheju National University)
Choi Bong-Yeol (Depts. of Electronic Engineering, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.43, no.5, 2006 , pp. 68-79 More about this Journal
Abstract
Electrical capacitance tomography (ECT) is a non-invasive imaging reconstruction technique that aims at visualization of cross sectional permittivity distribution of dielectric object based on the measured capacitance. There are lots of iterative image reconstruction methods to accelerate convergence rate and enhance quality of reconstructed image, Among them iterative Landweber method is one of the widely used reconstruction algorithm in En. In this paper, modified generalized Landweber method is proposed to accelerate convergence rate. In doing so, acceleration term is considered to the generalized Landweber method with shaping matrix and an optimal step length is determined analytically. Extensive computer simulations are provided to illustrate the reconstruction performance of the proposed algorithm.
Keywords
ECT; Landweber;
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1 M. Piana and M. Bertero, 'Projected Landweber method and preconditioning,' Inverse Problems13, pp. 441-463, 1997   DOI   ScienceOn
2 O. N. Strand, 'Theory and Methods Related to ？the Singular Function Expansion and Landweber's Iteration for Integral Expansions of the First Kind,' SIAM Journal on Numerical Analysis, vol. 11, no. 4, pp. 798-825, September 1974   DOI   ScienceOn
3 T. S. Pan, and A. E. Yagle, 'Numerical Study of Multigrid Implementations of Some Iterative Image Reconstruction Algorithms,' IEEE Trans. on Med. Imag., vol. 10, no. 4, pp. 572-588, December 1991   DOI   ScienceOn
4 T. S. Pan, and A. E. Yagle, 'Acceleration of Landweber type Algorithms by Suppression of Projection on the Maximum Singular Vector,' IEEE Trans. on Med. Imag., vol. 11, no. 4, pp. 479-487, December 1992   DOI   ScienceOn
5 T. S. Pan, A. E. Yagle, N. H. Clinthome, and W. L. Rogers, 'Acceleration and Filtering in the Generalized Landweber Iteration Using a Variable Shaping Matrix,' IEEE Trans. on Med. Imag., vol. 12, no. 2, pp. 278-286, June 1993   DOI   ScienceOn
6 J. D. Jang, S. H. Lee, K. Y. Kim and B. Y. Choi, 'Modified iterative Landweber Method in electrical capacitance tomography', Meas. Sci. Technol. 17., pp. 1909-1917, June 2006   DOI   ScienceOn
7 G. Demoment, 'Image reconstruction and restoration : overview of common estimation structures and problems,' IEEE Trans. Acoust., Speech, Signal Processing, vol. 37, pp. 2024-2036, December 1989   DOI   ScienceOn
8 N. Reinecke and D. Mewes, 'Recent developments and industrial/research applications of capacitance tomography,' Meas. Sci. Technol. 7, pp. 233-246, January 1996   DOI   ScienceOn
9 S. Liu, L. Fu, and W. Q. Yang, 'Optimization of an iterative image reconstruction algorithm for electrical capacitance tomography,' Meas. Sci. Technol. 10, pp. L37-39, June 1999   DOI   ScienceOn
10 J. H. Kim, B. Y. Choi and K. Y. Kim, 'Novel Iterative Image Reconstruction Algorithm for Electrical Capacitance Tomography: Directional Algebraic Reconstruction Technique', IEICE Trans. Fundamentals of Electronics, Communications and Computer Sciences, vol. E89-A No.6, pp. 1578-1584, June 2006   DOI
11 L. H. Peng, H. Merkus and B. Scarlett, 'Using regularization methods for image reconstruction of electrical capacitance tomography,' Part. Part. Syst, Charact., vol. 17, pp. 96-104, July 2000   DOI   ScienceOn
12 W. Q. Yang and L. Peng, 'Image reconstruction algorithms for electrical capacitance tomography,' Meas. Sci. Technol. 14, R1-13, December 2003   DOI   ScienceOn
13 C. G. Xie, S. M. Huang, B. S. Hoyle, R. Thorn, C. Lenn, D. Snowden and M. S. Beck, 'Electrical capacitance tomography for flow imaging : system model for development of image reconstruction algorithms and design of primary sensors,' IEE Proc.-G, pp. 89-98, February 1992
14 S. Liu, W. Q. Yang, H. G. Wang and Y. Su, 'Investigation of square fluidized beds using capacitance tomography: preliminary results,' Meas. Sci. Technol. 12, pp. 1120-1125, June 2001   DOI   ScienceOn
15 W. Q. Yang, D. M. Spink, T. A. York and H. McCann, 'An image reconstruction algorithm based on Landweber's iteration method for electrical capacitance tomography,' Meas. Sci. Technol. 10, pp, 1065-1069, July 1999   DOI   ScienceOn