Optimization-based image reconstruction from sparsely sampled data in electron paramagnetic resonance imaging

We show in the figure below images reconstructed by use of the filtered-backprojection (FBP) (row 1) and optimization-based (row 2) reconstructions from data collected at different projection views in EPRI and their respective zoomed-in views (rows 3 and 4) of the region enclosed by the square (row 2 and column 5). It can be observed that artifacts observed in the former are considerably reduced in the latter.236