Novel Registration and Fusion Algorithm for Multimodal Railway Images with Different Field of Views

Table 4

Average evaluation value of different fusion methods at daytime.

	Standard deviation	Mutual information	Information entropy	Cross entropy	Sharpness
Gray weighted average fusion	36.686	1.571	6.454	1.084	3.099
Contourlet transform fusion	39.767	1.771	6.860	0.802	7.202
Wavelet transform fusion	37.463	1.644	6.602	0.860	5.224
Total variation fusion	44.223	1.687	6.889	0.590	3.099
Proposed	51.078	1.717	7.061	0.279	6.923