[pdal] About litree filter: too much computation time, and other questions.
Bradley Chambers
brad.chambers at gmail.com
Tue Jan 17 11:41:58 PST 2023
On Tue, Jan 17, 2023 at 1:36 PM Ulises Ibarra <ulisesmartinibarra at gmail.com>
wrote:
>
> 1. Sampling a point inside a cube with a size of about 10 centimeters on
> each side, would this seem like a good level of subsampling to you?
>
I have not thoroughly studied this topic and it will be data dependent, but
I would guess that this would still work quite well. You might just have to
experiment on a small patch to tune the settings to your liking before
expanding to the full scene.
> 2. I could cut the cloud of points into tiles, but would something serious
> happen if a tree is half in one tile and half in another?
>
Correct. In the best case, you'd have two correctly segmented half trees in
each tile that you'd need to stitch together somehow.
> 3. Would each of the files for each tile be processed by batch processing?
>
Any batch processing or parallelization of your workflow will be external
to PDAL, but would be a reasonable approach to the problem.
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