search

umr-amap / aRchi

R package aRchi. Tree architecture from terrestrial laser scanning (TLS) data
21 stars 6 forks source link

Improve cylinder radius for the stem #9

Closed davodogster closed 1 year ago

davodogster commented 1 year ago

Hi this setting seems to give good radius for branches but too thin for them stem. Perhaps it is because I chopped the top off the point cloud?

Tree3_archi=add_radius(Tree_skel, sec_length = 0.02, by_axis = TRUE, method = "median")

image

Also, this small tree has 50K points. How many points do you think aRchi can handle for a dense point cloud, mature pine tree (300-800K points), for aRchi skeletonization, radius, and QSM computation?

Thanks!

oliviermartin7 commented 1 year ago

Hi,

No it is not because you chopped the top, this should not have any effect. Did you try another set of parameters ? Hard to say for the number of points. The reconstruction uncertainties with TLS data come most of the time from occlusion or noise, but rarely from the density. The point cloud you show seem to be good enough.

Best