Fig. 4
From: Assessing tree dendrometrics in young regenerating plantations using terrestrial laser scanning
Comparison between direct field measurement and terrestrial laser scanning (TLS) measurements for a total tree height, b stem diameter at ground height (ground diameter), c length of the longest branch, and d height of the longest branch. The correlation coefficient (r) and the root-mean-square-root error (RMSE) of the two measurements are 0.98 and 20.56 cm for total tree height, 0.95 and 0.52 cm for GD, 0.95 and 34.25 cm for length of the longest branch, and 0.81 and 38.12 cm for height of the longest branch, respectively. All correlations are truly correlated and significantly not equal to 0 (Pr < 0.001)