Table 2.

CS-MRI algorithm comparison over brain image (bold means the best).

	MAE	MSE	PSNR	Time
ISTA [11]	2.72	17.74	35.64	10.47
SISTA [12]	2.68	16.90	35.85	8.23
FISTA [13]	2.67	16.98	35.83	8.49
FCSA [16]	3.50	40.66	32.04	4.66
EWISTARS (proposed)	2.63	16.31	36.01	9.43

PSNR is in unit of dB and time is in unit of second.