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

[francesco]

I use GRASS quite a lot, but always thought that it would be slow on 
vector points. I know Brovelli and her team developed some modules, I'll 
check on that. Good idea to use LibLAS as "driver" to turn LAS to xyz.
Francesco

Il 04/03/2011 15:05, Stuart Edwards ha scritto:
> 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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>>> Liblas-devel at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/liblas-devel
>>
>>
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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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