Figure 1
From: Improved total variation minimization method for few-view computed tomography image reconstruction
A comparison study on the reconstructed images by conventional ART, ASD-POCS and API-TV algorithms respectively, each of which took 60 noise-free cone-beam projections and 50 iterations: (a) the true phantom image, (b) the reconstructed image by the conventional ART algorithm, (c) the reconstructed image by the ASD-POCS algorithm, and (d) the reconstructed image by the proposed API-TV algorithm. The grey scale display range is [0.8, 1.2].