[GRASS-user] Classified point cloud from UAS

[Adam Laža]

Hi all,

I've got some data from UAS (SenseFly eBee) exported as point cloud. I'd
like to ask if there's any way how to classify the data in GRASS. As an
input I have a point cloud exported in .las or .txt file. As an output I
need another .las file containing only terrain (I need to filter out
objects, buildings and vegetation) for next step which is generating DTM.

I've already tried some modules, import(r.in.lidar, v.in.lidar) works well.
Then I focused on v.lidar.* modules (v.lidar.edgedetection,
v.lidar.growing, v.lidar.correction) but already the first step of
recognizing and extracting object didn't work for me. I suppose it's due to
the v.lidar.* modules need data only from LiDAR, but I have data from
phtogrammetry (eBee carries Canon RGB camera).

Any idea how to classify my data?

Thank in advance,
Adam

Data sample at google drive:
las:
https://drive.google.com/file/d/0B3qa8r8b0sq0TTdnSVNHdE1UQ2M/view?usp=sharing
txt:
https://drive.google.com/file/d/0B3qa8r8b0sq0NVFRMmNEZHNkbDA/view?usp=sharing
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