Table 2.
Summary of the existing datasets for fog detection and its principal characteristics.
| Number of Images | Classes | Resolution | Country | Synthetic | Publication Year | |
|---|---|---|---|---|---|---|
| FRIDA1 | 90 | -- | 640 × 480 | -- | yes | 2010 |
| FRIDA2 | 330 | -- | 640 × 480 | -- | yes | 2012 |
| Foggy Cityscapes-coarse- | 20,000 | 8 | 2040 × 1016 | Germany and Switzerland | synthetic fog | 2018 |
| Foggy Cityscapes-refined- | 550 | 8 | 2040 × 1016 | Germany and Switzerland | synthetic fog | 2018 |
| Foggy Driving | 101 | 19 | 960 × 1280 | Zurich | no | 2018 |
| Foggy Zurich | 3808 (40 annotated) | 19 | 1920 × 1080 | Zurich | no | 2019 |
| Seeing Through Fog | 1,429,060 | -- | 1920 × 1024 | Germany, Sweden, Denmark, and Finland | no | 2020 |
| Ceit-Foggy | 4480 | -- | several | Spain | no | 2020 |