[pdal] Filters on LiDAR data for vegetation cover

[Luigi Pirelli]

Hi silvia

with my limitated experience in this area I would do

1) filter only last points
2) filter with pmf or smpf... and here you have to play with parameters
reading experience, there is no a generic set of parameters, because they
depend on the size of objects you want to "remove", sensor noise, terain
conformation and point of view espect the terrain

=> you have to check the parameters :(

you can read may papers related with pmf... no idea about papers specific
to high vegetation cover.

cheers

Luigi Pirelli

**************************************************************************************************
* LinkedIn: https://www.linkedin.com/in/luigipirelli
* Stackexchange: http://gis.stackexchange.com/users/19667/luigi-pirelli
* GitHub: https://github.com/luipir
* Mastering QGIS 2nd Edition:
*
https://www.packtpub.com/big-data-and-business-intelligence/mastering-qgis-second-edition
* Hire me: http://goo.gl/BYRQKg
**************************************************************************************************


On Wed, 10 Apr 2019 at 12:02, Silvia Franceschi <silvia.franceschi at gmail.com>
wrote:

> Dear all,
> is there someone who is working with point cloud data to extract the DTM
> in areas with high vegetation cover?
> Do you have experience on which of the different filters available in the
> PDAL is better to use? which values of the parameters did you use?
>
> Do you know if there are papers available on applications on these use
> cases?
>
> Any suggestion is appreciated! :-D
>
> Regards
>
> Silvia
>
>
>
> --
> ing. Silvia Franceschi
> Via Latemar, 22
> 38030 Castello di Fiemme (TN)
>
> tel: 0039 -3384501332
> _______________________________________________
> pdal mailing list
> pdal at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/pdal
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/pdal/attachments/20190410/b4f8ffbf/attachment.html>