Table 1.

Coefficients of correlation between actual measurements of biomass, area and height, and parameter estimation using Kinect sensor from different viewing angles in one year old poplar trees.

Viewing Angle	Leaf Biomass			Branch Biomass			Leaf Area			Total Biomass	Height
	Top	Half Height	Base	Top	Half Height	Base	Top	Half Height	Base	Full Tree
0°	0.421	0.756 **	−0.065	−0.016	0.632 **	−0.017	0.201	0.062	−0.153	0.729 **	0.747 **
45°	0.662 **	0.896 **	0.579 **	0.249	0.748 **	0.549 **	0.746 **	0.720 **	0.829 **	0.799 **	0.979 **
90°	0.669 **	0.916 **	0.589 **	0.198	0.762 **	0.479 *	0.625 *	0.125	0.579	0.802 **	0.982 **
−45°	0.671 **	0.843 **	0.619 **	0.249	0.695 **	0.114	0.777 **	0.502	0.391	0.747 **	0.944 **
Multiangle	0.787 **	0.746 **	0.692 **	0.510 *	0.737 **	0.650 **	0.779 *	0.673	0.152	0.866 **	0.988 **

* Correlation significant at p < 0.05 level; ** Correlation significant at p < 0.01 level.