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. 2023 Jan 18;13:947. doi: 10.1038/s41598-023-28240-9

Table 3.

Number and proportion of caribou adults, calves, and ghosts that were missed by the Faster-RCNN and the pool of naïve observers (mean ± SD) per mosaic.

Mosaic Class Missing Proportion missing
Faster-RCNN model
 Mosaic 1 (120 m) Adults 0 0.00
Calves 2 0.08
Ghosts 1 0.14
 Mosaic 2 (120 m) Adults 5 0.09
Calves 3 0.14
Ghosts 12 0.43
 Mosaic 3 (75 m) Adults 1 0.02
Calves 0 0.00
Ghosts 0 0.00
 Mosaic 4 (75 m) Adults 0 0.00
Calves 2 0.08
Ghosts 26 0.46
Naïve observers
 Mosaic 1 (120 m) Adults 3.8 ± 3.7 0.07
Calves 2.6 ± 2.3 0.09
Ghosts 1.2 ± 1.1 0.20
 Mosaic 2 (120 m) Adults 2.4 ± 2.1 0.04
Calves 1.6 ± 1.3 0.07
Ghosts 2.4 ± 1.1 0.09
 Mosaic 3 (75 m) Adults 1.4 ± 1.3 0.03
Calves 0.4 ± 0.5 0.05
Ghosts 2.4 ± 2.3 0.24
 Mosaic 4 (75 m) Adults 6.2 ± 6.5 0.09
Calves 1.0 ± 1.0 0.04
Ghosts 3.8 ± 5.3 0.09