Resolution and noise performance of sparse view X-ray CT reconstruction via Lp-norm regularization

L Zhang, H Zhao, W Ma, J Jiang, L Zhang, J Li, F Gao… - Physica Medica, 2018 - Elsevier
Objectives Adaptive steepest descent projection onto convex sets (ASD-POCS) algorithms
with Lp-norm (0< p≤ 1) regularization have shown great promise in sparse-view X-ray CT …

[PDF][PDF] The Radon transform, its generalization and their applications in PET and SPECT medical imaging

N Protonotarios - 2020 - dspace.lib.ntua.gr
The celebrated Radon transform [1, 2] of a two-dimensional function is defined as the set of
all its line integrals [3]. There exists a certain generalization of the Radon transform, the so …