Research Article
Novel Registration and Fusion Algorithm for Multimodal Railway Images with Different Field of Views
Table 3
Quantitative evaluation of source image and fusion results at night.
| evaluation indicators | Source image | Fusion results | IR | Registered visible | gray weighted average | Contourlet Transform | Wavelet transform | Total variation | proposed |
| average gray | 32.40 | 13.97 | 26.89 | 27.10 | 26.90 | 21.22 | 33.06 |
| standard deviation | 27.49 | 35.89 | 22.74 | 26.06 | 22.91 | 26.48 | 29.27 |
| average gradient | 1.67 | 1.07 | 1.44 | 2.61 | 1.65 | 1.55 | 2.65 |
| Information entropy | 5.82 | 1.83 | 5.76 | 5.93 | 5.82 | 5.09 | 6.06 |
| edge intensity | 17.70 | 11.53 | 15.23 | 27.69 | 17.07 | 16.56 | 28.05 |
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