. Author manuscript; available in PMC: 2015 Feb 17.

Published in final edited form as: IEEE J Transl Eng Health Med. 2014;2:1800512. doi: 10.1109/JTEHM.2014.2303806

TABLE 1.

Magnitude of improvement by super resolution. Percent improvement is based on the mean values of each index.

	Zero Padding		Bicubic 1		Bicubic 2
	SAX	LAX	SAX	LAX	SAX	LAX
MAE	4.1%^*	3.2%^*	19.0%^*	18.4%^*	3.2%^*	2.1%^*
RMSE	10.3%^*	−3.1%	49.5%^*	44.4%^*	10.9%^*	1.7%
PSNR	4.7%^*	−0.4%	38.3%^*	36.9%^*	5.7%^*	1.7%^*
UIQI	3.8%^*	3.5%^*	41.6%^*	40.2%^*	0.0%	1.4%^*

SAX, short-axis; LAX, long-axis; MAE, mean absolute error; RMSA, root mean squared error; PSNR, peak signal-to-noise ratio; UIQI, universal image quality index.

: P<0.001 vs. interpolation.