[Liblas-devel] Ground Modeling with RAW LiDAR and libLAS

[francesco]

Definitively will check SAGA GIS out (I already downloaded it). I am 
still trying to find the perfect GIS box ...
Cheers,
Francesco

Il 06/03/2011 20:07, Volker Wichmann ha scritto:
> SAGA GIS is also worth a look (http://www.saga-gis.org).
>
> It uses libLAS for LAS file import to the SAGA native point cloud 
> format. SAGA includes several tools to manipulate the point cloud, 
> e.g. an attribute calculator, reclassifier, subset extractor and many 
> other methods like gridding and interpolation. There is also (a grid 
> based) bare earth filter, adapted from Vosselman (2001).
>
> SAGA API is C++ and implementing own modules is quite straight forward.
>
> Volker
>
> On 03/04/2011 03:05 PM, Stuart Edwards wrote:
>> GRASS GIS (open source) has several modules for processing raw LiDAR
>> data and the ability to script your own classification routines. LibLAS
>> does a nice job of preprocessing (decoding) the LAS files so they can be
>> input to GRASS as x,y,z or general ASCII format .......see:
>>
>> http://grass.osgeo.org/wiki/LIDAR#Micro-tutorial
>>
>> Stu
>>
>>
>> On Mar 4, 2011, at 1:31 AM, francesco wrote:
>>
>>> Hello List,
>>> I just registered, hello to everyone.
>>> Regarding Aaron's question, I am playing around with LibLAS to develop
>>> a ground classification procedure. It uses Axellson's progressive
>>> triangulation of local minimum points - but I am also looking at other
>>> solutions. Does anyone have other interesting approaches in mind?
>>> Cheers,
>>> Francesco
>>> -- 
>>> **************************************************
>>> *Francesco Pirotti*
>>> Dep. TESAF
>>> CIRGEO – Interdepartmental Research Center on Cartography 
>>> Photogrammetry
>>> Remote Sensing and G.I.S.
>>> University of Padova
>>> Web: http://www.cirgeo.unipd.it/cirgeo/francescopirotti.htm
>>> Email: francesco.pirotti at unipd.it <mailto:francesco.pirotti at unipd.it>
>>> Phone: +39 049 827 2710
>>> Phone: +39 349 55 39 261
>>> **************************************************
>>>
>>>
>>> Il 04/03/2011 00:49, Aaron Reyna ha scritto:
>>>> Ah yes,
>>>>
>>>> I'll try the MCC-LiDAR. Great, thanks for the suggestion!
>>>>
>>>> Aaron
>>>>
>>>> On Thu, Mar 3, 2011 at 3:09 PM, Peter Tittmann
>>>> <pwtittmann at ucdavis.edu <mailto:pwtittmann at ucdavis.edu>> wrote:
>>>>
>>>>     I've used MCC-Lidar http://sourceforge.net/apps/trac/mcclidar/ a
>>>>     little with marginal results. Not a great answer but something.
>>>>     TeraScan http://www.terrasolid.fi/en/products/terrascan is the
>>>>     elephant in that room.
>>>>
>>>>     Peter
>>>>
>>>>
>>>>     On 03/03/2011 02:43 PM, Aaron Reyna wrote:
>>>>>     This may be too broad of a question, but has anyone seen or
>>>>>     heard of a way to do efficient ground modeling with libLAS? That
>>>>>     is, take raw LiDAR files (all default points) and model out the
>>>>>     ground class? I do have raw LiDAR files if it helps.
>>>>>
>>>>>     Just throwing it out there.
>>>>>
>>>>>     Best,
>>>>>
>>>>>     Aaron
>>>>>
>>>>>
>>>>>
>>>>>     _______________________________________________
>>>>>     Liblas-devel mailing list
>>>>>     Liblas-devel at lists.osgeo.org 
>>>>> <mailto:Liblas-devel at lists.osgeo.org>
>>>>>     http://lists.osgeo.org/mailman/listinfo/liblas-devel
>>>>
>>>>     --
>>>>     Peter Tittmann
>>>>     Geography Graduate Group
>>>>     UC Davis
>>>>     c. 707 849 4135
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>


-- 
**************************************************
*Francesco Pirotti*
Dep. TESAF
CIRGEO – Interdepartmental Research Center on Cartography Photogrammetry
Remote Sensing and G.I.S.
University of Padova
Web: http://www.cirgeo.unipd.it/cirgeo/francescopirotti.htm
Email: francesco.pirotti at unipd.it <mailto:francesco.pirotti at unipd.it>
Phone: +39 049 827 2710
Phone: +39 349 55 39 261
**************************************************
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