MI pare una bella storia, degna di essere diffusa: l'universita' che si
fa motore di innovazione, il passaggio ad una licenza libera che moltiplica le possibilita', la cooperazione e lo sviluppo, e poi un riconoscimento prestigioso. Saluti. -------- Messaggio originale -------- Hello, thank you, Karl, for the nice words. But although I may have developed the compression technology, the quick adaption of LAZ as the "de-facto standard" for LiDAR compression by more and more agencies and industries would not have been possible without the support of several folks. I want to acknowledge those who have helped tremendously to make this happen. LASzip had been available since 2007 on my web page in form of an API (header files and library) and as a binary executable (but without any license). At that time laszip.exe was nothing but an academic proof-of- concept prototype implementation to accompany a paper on compression. I was surprised to later find out that it had already been used by some data vendors for data deliveries ... (-: I was first encouraged to "open source" my laszip.exe compressor in the fall of 2009 by companies and federal agencies who wanted LiDAR compression but did not want to buy into the royalty-based LiDAR compressor of LizardTech. They told me that they were worried that this would put "financial discomfort" on them for years to come. But the open sourcing of LASzip 1.0 did not actually happen until Howard Butler (Hobu Inc) and Dave Finnegan (USACE) convinced me of the benefits and promised me help with integrating and promoting LAZ via their widely popular open source libLAS library that had forked off LAStools in November 2007. They also motivated me to add random-access to the decompressor. In particular Howard kept nagging me about adding "chunking" - how he coined this functionality - to the LASzip compression algorithm. This gave me reason to completely re-factor the LASzip code base into a more modular and more extensible industry-strength implementation that would allow to incorporate changes to the evolving LAS specification in the future. During the redesign to LASzip 2.0 a few more ideas how to better predict the next point from the previous ones were integrated to further improve compression ratio and speed. At this point Michael Gerlek (Flaxen consulting) joined the effort and helped to properly interface LASzip with libLAS (and now PDAL). Via this interface, LAZ support is now available, for example, in FME2012, TopoDOT, GRASS, and any other software that uses libLAS under the hood. Finally, Tim Loesch (DNR Minnesota) and Chris Crosby (OpenTopography) were the earliest adopters to provide the LAZ format as an option for downloading large amounts of LiDAR. This gave LAZ the first real exposure to a wider audience. I want to extend your congratulations to all of them. Thank's guys! Martin @lastools On Apr 25, 7:15 am, Hans Karl Heidemann <[hidden email]> wrote: > Congratulations Martin .... you well deserve this recognition for your > genius, effort, and willingness to support and advance the lidar industry! > > H Karl Heidemann, GISP > Physical Scientist, Lidar Science > U.S. Geological Survey > Earth Resources Observation and Science Center > 47914 252nd Street, Sioux Falls, SD 57198 > Phn: 605-594-2861 > Fax: 605-594-6529 > [hidden email]://lidar.cr.usgs.gov > "Nothing matters very much, and few things ... matter at all." > -- Arthur > James Balfour > > From: Martin Isenburg <[hidden email]> > To: LAStools - efficient tools for LiDAR processing > <[hidden email]> > Date: 04/24/2012 05:15 PM > Subject: [LAStools] wins 2012 technology innovation award for LiDAR > processing at Geospatial World Forum for LASzip > Sent by: [hidden email] > > Hello, > > LAStools is the recipient of the 2012 technology innovation award for > LiDAR processing at the Geospatial World Forum in Amsterdam for its > LASzip lossless LiDAR compression software. LASzip is a free, > efficient, open-source solution for squeezing LAS files into 5 to 13 > times smaller LAZ files. LASzip has become a de-facto industry > standard for exchanging compressed LiDAR that is used by NOAA, USGS, > OpenTopography, Dielmo3D, Fugro, Blom, Riegl, Dewberry, USACE, DNR > Minnesota, the Finnish Mapping Authority, and many more ... saving > agencies, companies, and their users many TeraBytes of disk storage > and transmission bandwidth. > > Yay! > > Regards, > > Martin @lastools > > -- > Download LAStools athttp://lastools.org/ > Visit the LAStools group athttp://groups.google.com/group/lastools/ > Be social with LAStools athttp://www.facebook.com/LAStoolshttp://www.twitter.com/LAStools -- Download LAStools at http://lastools.org/ Visit the LAStools group at http://groups.google.com/group/lastools/ Be social with LAStools at http://www.facebook.com/LAStools http://www.twitter.com/LAStools _______________________________________________ [hidden email] http://lists.gfoss.it/cgi-bin/mailman/listinfo/gfoss Questa e' una lista di discussione pubblica aperta a tutti. 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