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

Table 5

Average evaluation value of different fusion methods at night.

	Standard deviation	Mutual information	Information entropy	Cross entropy	Sharpness
Gray weighted average fusion	22.270	1.555	5.674	0.623	1.540
Contourlet transform fusion	25.425	1.722	5.841	0.628	2.852
Wavelet transform fusion	22.413	1.597	5.729	0.587	1.936
Total variation fusion	26.322	1.681	5.066	0.849	1.618
Proposed	28.846	1.690	6.001	0.134	2.828