TABLE IV.

Contrast-to-Noise Ratio (CNR) difference in different ROIs on the real brain dataset. Lower score is better. SD is standard deviation and MD is max deviation.

ROI	L-PET	SR	CDL	RF	mCCA	mCCA
		L	L	L+T1	L	L+M
1	0.148	0.192	0.095	0.027	0.016	0.013
2	0.121	0.183	0.103	0.034	0.018	0.015
3	0.172	0.184	0.085	0.052	0.021	0.017
4	0.151	0.167	0.114	0.076	0.003	0.001
5	0.074	0.027	0.023	0.017	0.018	0.016
6	0.042	0.035	0.029	0.019	0.013	0.012
7	0.251	0.072	0.066	0.071	0.028	0.024
8	0.273	0.081	0.059	0.047	0.024	0.021
Average	0.154†	0.118†	0.071†	0.043*	0.018†	0.015
SD	0.071	0.079	0.034	0.023	0.008	0.007
MD	0.119	0.091	0.049	0.033	0.015	0.014

^†indicates p < 0.01 in the t-test as compared to our method, and

^*means p < 0.05.