Fig. 1
From: Compressed sensing MRI: a review from signal processing perspective

Various types of sparsity in MRI. (a) Sparsity from spatial domain redundancy, (b) Sparsity from temporal redundancy, and (c) sparsity from mu.ti-channel redundancy
From: Compressed sensing MRI: a review from signal processing perspective
Various types of sparsity in MRI. (a) Sparsity from spatial domain redundancy, (b) Sparsity from temporal redundancy, and (c) sparsity from mu.ti-channel redundancy