Median Filter Based Compressed Sensing Model with Application to MR Image Reconstruction

Table 1

Numerical results for the synthetic phantom image and real MR images with different sampling ratios.

Image	Samp.Ratio	PSNR (dB)	Time (s)	Rerror
Phantom	3.90%	28.19	6.34	0.165
512×512	5.76%	34.55	4.65	0.078
	9.50%	42.49	3.08	0.040
Image	Samp.Ratio	PSNR (dB)	Time (s)	Rerror
Brain 1	7.60%	29.89	1.74	0.120
512×512	15.00%	34.04	1.55	0.070
	35.01%	37.47	1.55	0.051
Image	Samp.Ratio	PSNR (dB)	Time (s)	Rerror
Brain 2	7.60%	31.05	1.59	0.130
512×512	18.50%	37.52	1.55	0.060
	35.00%	44.46	1.53	0.020