Fig. 4: Validation of tree segmentation results with canopy height models.
From: More than one quarter of Africa’s tree cover is found outside areas previously classified as forest
a Airborne LiDAR canopy height models for three scenes in Karingani Game Reserve, Mozambique. b Corresponding binary tree cover predictions from PlanetScope map. c–e Scatter plot between PlanetScope tree cover and CHM tree cover if a minimum tree height of 5–6 m is used for the CHM data (see Supplementary Fig. 6a for different height thresholds); for c 59 sample plots in Senegal, ranging from 2–15 ha size (5 m height threshold), d 400 random plots in Mozambique, each 50 ha size (6 m height threshold), e 400 random plots in DRC, each 50 ha size (6 m height threshold).
