Fig. 12From: Forest in situ observations using unmanned aerial vehicle as an alternative of terrestrial measurementsRelative RMSE (a) and bias (b) of the stem curve estimates from the UAV, mobile and stationary platforms. The left axes represent the RMSE% and bias% values (bars). The right axes represent the completeness (solid line with ‘+’ markers) and percentage of tree height covered (PHC, solid line with ‘x’ markers). All units are in percentagesBack to article page