Two-Layer Tight Frame Sparsifying Model for Compressed Sensing Magnetic Resonance Imaging

Table 1

The computational time (in second) comparison over different acceleration rates.

Image	PD-weighted image
Acceleration rate	2.5	4	6	8	10	20
TRIMS	137	139	140	139	137	137
DDTF	148	149	148	148	148	148
DLMRI	1294	1234	1215	1205	1188	1161
GradDLRec	2644	2475	2386	2352	2338	2298