Image Fusion of CT and MR with Sparse Representation in NSST Domain

Table 4

Objective evaluation metrics of the fusion results of Figures 3(a) and 3(e).

Method	STD	M-SSIM	MI	SCD					VIFF
Proposed	82.3036	0.7453	2.9034	1.3673	0.3829	0.6598	0.3877	0.5277	0.4598
NSCT-SR-OMP	78.7649	0.6805	2.9842	1.1264	0.3798	0.6478	0.3888	0.5109	0.4472
SR-OMP	72.5496	0.7533	3.4771	0.7848	0.3568	0.6178	0.4028	0.5348	0.3257
NSST	70.0334	0.6944	2.6821	0.9589	0.3725	0.6573	0.4181	0.5514	0.4028
NSCT	66.9852	0.5503	2.5579	0.7918	0.3492	0.6115	0.3820	0.5033	0.3480
CVT	68.0393	0.5602	2.3974	0.8071	0.3157	0.6202	0.3600	0.4694	0.3529
DTCWT	64.8234	0.5444	2.7009	0.8209	0.2000	0.3193	0.2279	0.5390	0.1816
GP	66.4735	0.6117	2.6955	0.9055	0.3758	0.6300	0.4058	0.5206	0.3567