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

Figure 1

Frequency tiling of the shearlets and an example of basis function. (a) The tiling of the frequency plane induced by the shearlets, (b) basis function, and (c) the frequency support of a shearlet on a pair of trapezoids.

(a)

(b)

(c)