Fig. 3From: Single-image photogrammetry for deriving tree architectural traits in mature forest stands: a comparison with terrestrial laser scanningRelatedness of the TLS- and SIP-derived variables. Left, tree height (in metres); right, diameter at breast height (in centimetres); black solid lines are the SMA regression lines, grey lines represent 95% confidence intervals and dashed lines are the 45-degree linesBack to article page