. Author manuscript; available in PMC: 2022 Aug 18.

Published in final edited form as: IEEE Trans Comput Imaging. 2021 Jan 8;7:209–223. doi: 10.1109/tci.2021.3049648

TABLE V:

Comparison of RMSE and SSIM for different algorithms over an ensemble of 50 out-of-distribution brain images for the simulation study and 40 knee images for the emulated experimental study. The values inside the parentheses denote the standard deviation (SD) of the metric.

Algorithm	Brain (out of dist.)		Emulated experimental
Algorithm	RMSE mean (RMSE SD)	SSIM mean (SSIM SD)	RMSE mean (RMSE SD)	SSIM mean (SSIM SD)
PLS-TV	0.0124 (0.0012)	0.9813 (0.0046)	0.0148 (0.0046)	0.9151 (0.0459)

CSGM-GAN	0.0516 (0.0088)	0.7932 (0.022)	0.0283 (0.0072)	0.8815 (0.0455)

IAGAN-TV	0.0119 (0.0013)	0.9847 (0.0041)	0.0142 (0.0049)	0.9098 (0.0590)

INN Proj. TV	0.0118 (0.0011)	0.9846 (0.0038)	0.0135 (0.0044)	0.9320 (0.0360)