Compressed Sensing MRI Reconstruction from Highly Undersampled -Space Data Using Nonsubsampled Shearlet Transform Sparsity Prior

Figure 8

Comparison of reconstruction results for T2wBrain_slice_27 from noise-added undersampled -space data. (a) The noisy fully sampled reconstruction image, (b) variable density random sampling pattern at sampling rate 24.96%, (c) added noise magnitude, and (d)~(h) reconstructed images using zero-filling, TV-CG, ODWT-based, SFLCT-based, and the proposed NSST-based CS-MRI, respectively. The PSNRs of (d)~(h) are 27.12, 31.41, 32.85, 34.23, and 36.52, respectively.

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