CloudCompare forum

Hi!
I'm working on point clouds and neural networks and I would like to compute only the eigenvalues of my point clouds.
I've seen that you can compute other geometric features that are a combination of eigenvalues, but I was wondering if it is possible to compute only the "raw data".
Thank you

This is now possible! You can download the latest 2.11.beta version (non stereo).

Thank you, so helpful!
I have another question: is there a standard or an optimal value for the radius of the neighborhood in point clouds as buildings? I've read the Weinmann's article, but I have to try to generalize the most possible for my neural network, and I shouldn't change the radius for each scene/building.
On the other side, I know that when computing the 3D features, according to what you are looking for, it is better to change the radius, so I really don't know the best way to manage the EVs.

Yep, setting the right radius value is the key, and generally a big challenge if you want to do it automatically.

It depends on the scale of the objects / structures you are interested in, the units in which the point coordinates are expressed, the density of your cloud as well, etc.

There might be some methods to set it automatically but I don't know them ;)

I'll do some tests.
Thank you for your reply!