关键词:

电容成像, 图像重建, 正则化方法, 正则算子

Abstract:

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.

Key words:

电容成像, 图像重建, 正则化方法, 正则算子