[Gdal-dev] Re: LiDAR processing

GeoWiz geowiz at shaw.ca
Tue Dec 20 17:04:06 EST 2005

Thanks, I'll have a look.

  ----- Original Message ----- 
  From: Markus Neteler 
  Newsgroups: gmane.comp.gis.gdal.devel
  Cc: Gdal-dev at lists.maptools.org 
  Sent: Saturday, December 17, 2005 11:54 AM
  Subject: Re: LiDAR processing

  On Thu, Dec 15, 2005 at 08:31:14PM -0700, GeoWiz wrote:
  > I was wondering if there are any good open source projects going on that 
  > involve processing lidar data.
  > Thanks,
  > Steve 


  you may check GRASS 5.4, it contains the software from Prof Maria Brovelli,
  Italy. See the src.contrib/POLIMICO/ directory.

  Here the README details:

  LIDAR data filtering

  Command execution order:

  1. s.bspline.reg
  2. s.edgedetection
  3. s.growing

  s.bspline.reg/  : bilinear or bicubic spline interpolation Least quares approach
  s.correction/   : DTM correction: error removal (building remainder, vegetation etc)
  s.edgedetection/: detection of building edges, vegetation edges, etc.
  s.growing/      : filling of previously computed edges

  Additional software
  s.to.qrast/     : fast sites to raster conversion (replaces s.to.rast)

  Related Publications:
  - GRASS Users conference 2002, Trento, Italy

  - Brovelli, Maria A, Cannata, Massimiliano & Longoni, Ulisse M (2004)
    LIDAR Data Filtering and DTM Interpolation Within GRASS.
    Transactions in GIS 8 (2), 155-174.
    Online: http://www.blackwell-synergy.com/servlet/useragent?func=synergy&synergyAction=

  Note that 5.4-CVS contains some updates which will appear in the
  next 5.4.x release of GRASS.

  Hope this helps


  Markus Neteler     <neteler itc it>       http://mpa.itc.it
  ITC-irst -  Centro per la Ricerca Scientifica e Tecnologica
  MPBA - Predictive Models for Biol. & Environ. Data Analysis
  Via Sommarive, 18        -       38050 Povo (Trento), Italy
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