Undersampled MR Image Reconstruction with Data-Driven Tight Frame

Table 2

Computational time (s) of different algorithms.

Image	Different algorithms
	CSMRI-TV	DLMRI	DDTF-MRI
Figure 2(a)	147.3	1600.6	310.2
Figure 4(a)	30.9	2609.2	314.5
Figure 5(a)	37.1	2484.3	315.3
Figure 6(a)	31.5	2503.6	313.7