Table 2.

Performance comparison between different methodologies for PSNR.

S. no.	Methodologies	Peak signal-to-noise ratio (dB) (x2)
		CT brain	Sagittal brain MRI	Knee
1	SSR (proposed method)	34.93	35.86	35.56
2	DNN-SR [13]	34.83	34.89	34.69
3	SRCNN [4]	34.47	34.53	34.57
4	SR-AutoEncoder [12]	34.66	34.26	34.45
5	SRResNet [15]	34.29	34.12	34.24