JIANG Peng, PENG Lihui, XIAO Deyun. Tikhonov regularization based on second order derivative matrix for electrical capacitance tomography image reconstruction[J]. CIESC Journal, 2008, (2): 405-409.
JIANG Peng, PENG Lihui, XIAO Deyun. Tikhonov regularization based on second order derivative matrix for electrical capacitance tomography image reconstruction[J]. CIESC Journal, 2008, (2): 405-409.DOI:
Tikhonov regularization method is widely used in certain inverse problems.A regularization term is introduced to lessen the ill-posedness in inverse problems.In order to improve the quality of image reconstruction for electrical capacitance tomography
a second order derivative operator is introduced to sharpen the reconstructed images.Simulation results show that
in comparison with standard Tikhonov regularization method
the method with the second order derivative operator for regularization provides reconstruction results with clearer contours.In addition
the method is adaptive to all test models and not sensitive to the initial solutions.