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Table 1 Bias and root-mean-square error (RMSE) are associated with UAV-diameter measurements at various tree heights, specifically at 1.3 m (DBH), 2 m (D2 m), 4 m (D4 m), and 6 m (D6 m)

From: Extraction of individual tree attributes using ultra-high-density point clouds acquired by low-cost UAV-LiDAR in Eucalyptus plantations

Statistics

DBH (circle fitting)

DBH

D2 m

D4 m

D6 m

Bias (%/cm)

 − 50.30/− 7.64

 − 1.70/− 0.26

 − 15.67/− 2.21

 − 16.058/− 2.05

6.30/− 0.73

RMSE (%/cm)

53.92/8.19

14.37/2.18

23.16/3.27

24.14/3.08

26.99/3.12

  1. Note: DBH (circle fitting) is the DBH measured with the circle fitting method; DBH, D2 m, D4 m, and D6 m are measured by χ2-filtering
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Annals of Forest Science

ISSN: 1297-966X