Sparse-Representation-Based Direct Minimum -Norm Algorithm for MRI Phase Unwrapping
Figure 7
The transverse sections of a 5-slice MR knee dataset. The magnitude and wrapped phase images are shown in the first and second rows, respectively. Unwrapping results of the , conventional minimum -norm, PUMA, and PHUN methods are followed in a top-down order. Undesirable shear lines are marked with yellow arrows. The patches of outliers are marked with green arrows.
