The Nonsubsampled Contourlet Transform Based Statistical Medical Image Fusion Using Generalized Gaussian Density

Table 4

Computational complexity comparison of different fusion methods for CT-MRI dataset shown in Figure 5.

Methods	DWT	GP	PCA	GF	CT	NSCT-1	NSCT-2	Proposed
Running time (s)	0.021	0.019	0.003	0.075	1.976	33.79	15.29	17.13