Shearlet-based compressed sensing for fast 3D cardiac MR imaging using iterative reweighting.High-resolution three-dimensional (3D) cardiovascular magnetic resonance (CMR) is a valuable medical imaging technique, but its widespread application in clinical practice is hampered by long acquisition times. 
Shearlet-based compressed sensing
An iterative reweighting scheme was applied during image reconstruction to ensure fast convergence and high image quality. 
iterative reweighting scheme