A benchmark dataset for canopy crown detection and delineation in co-registered airborne RGB, LiDAR and hyperspectral imagery from the National Ecological Observation Network
Fig 7
Intersection-over-union scores (top left), as well as plot-level inferences, between the primary annotator and a 2nd annotator.
For the IoU scores, we plotted precision and recall for 7 different intersection-over-union thresholds. As the overlap threshold decreases, the two annotators tend to agree on ground truth tree crowns. Analysis is based on 71 evaluation images (n = 1172 trees) that were separately annotated by two different annotators.