Adaptive mesh refinement algorithm for electrical impedance tomography based on wavelet transform

摘要

In the paper, an auto-adaptive refinement algorithm based on wavelet transform for electrical impedance imaging has been presented. The scale of mesh division affects the computation cost and the quality of reconstructed image. In order to trade off the two aspects, adaptive mesh refinement is applied to increase the efficiency of reconstruction algorithm by reducing computation and storage cost as well as providing problem-dependent solution structures. The resultant mesh model and reconstructed impedance distribution are shown in comparison with that of uniform mesh refinement.