Table 5: Performances of the stem density estimation when using Faster-RCNN method for the postclassification step. The evaluation is achieved on the three validation data sets (Vg, Vc, and Vgc).

Calibration datasetValidation datasetSample sizeslopeinterceptR2RMSE (stems/m2)RRMSE (%)

CgVg660.9825.630.9524.456.95
Vc2080.9441.250.8560.829.19
Vgc2740.9538.120.9040.237.17

CcVg660.9520.850.8830.528.67
Vc2080.9717.140.9640.256.08
Vgc2740.9630.280.9239.667.07

CgcVg660.9533.120.9125.467.23
Vc2080.9745.330.9242.816.47
Vgc2740.9838.160.9438.456.85