Anisotropic total variation minimization approach in in-line phase-contrast tomography and its application to correction of ring artifacts
Ji Dong-Jiang1, 2, Qu Gang-Rong1, 3, †, Hu Chun-Hong4, Liu Bao-Dong5, 6, 7, Jian Jian-Bo8, Guo Xiao-Kun9
       

Reconstructed images using different methods for comparison (a) SART, (b) SART-isotropic TV, (c) SART-anisotropic TV, and the corresponding magnified regions: (d) magnified ROI of SART, (e) magnified ROI of SART-isotropic TV, and (f) magnified ROI of SART-anisotropic TV.