Cylinder length-volume ratio TreeQSM — cylinder_length_volume_ratio

Calculates the cylinder length volume ratio from a TreeQSM.

Usage

cylinder_length_volume_ratio_qsm(treedata)

Arguments

treedata: Treedata field of a TreeQSM that is returned by read_tree_qsm.

Value

The cylinder length volume ratio in meters-2.

Details

The cylinder length volume ratio is defined as "the ratio between total length and volume of the branch cylinders" (Akerblom et al., 2017 & Terryn et al., 2020).

References

Akerblom, M., Raumonen, P., Makipaa, R., & Kaasalainen, M. (2017). Automatic tree species recognition with quantitative structure models. Remote Sensing of Environment, 191, 1-12.

Terryn, L., Calders, K., Disney, M., Origo, N., Malhi, Y., Newnham, G., ... & Verbeeck, H. (2020). Tree species classification using structural features derived from terrestrial laser scanning. ISPRS Journal of Photogrammetry and Remote Sensing, 168, 170-181.

Examples

if (FALSE) {
# Read tree qsm and calculate the cylinder length volume ratio
qsm <- read_tree_qsm(QSM_path = "path/to/qsm.mat")
clvr <- cylinder_length_volume_ratio_qsm(treedata = qsm$treedata)
}