Fig. 2
From: Compressed sensing MRI: a review from signal processing perspective

Various under-sampling patterns: (a) Cartesian undersampling, (b) radial undersampling, and (c) spiral undersampling
From: Compressed sensing MRI: a review from signal processing perspective
Various under-sampling patterns: (a) Cartesian undersampling, (b) radial undersampling, and (c) spiral undersampling