View source: R/metrics_Terryn_2020.R
stem_branch_cluster_size_qsm | R Documentation |
Calculates the stem branch cluster size from a TreeQSM.
stem_branch_cluster_size_qsm(cylinder)
cylinder |
Cylinder field of a TreeQSM that is returned by
|
The stem branch cluster size is defined as "the average number of 1st order branches inside a 40cm height interval for 1st order branches. Each branch can only belong to one interval" (Akerblom et al., 2017 & Terryn et al., 2020).
The stem branch cluster size. NaN when there are no stem branches.
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.
## Not run:
# Read tree qsm and calculate the stem branch cluster size
qsm <- read_tree_qsm(QSM_path = "path/to/qsm.mat")
sbcs <- stem_branch_cluster_size_qsm(cylinder = qsm$cylinder)
## End(Not run)
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