Nicolas Barth (recipient of three LASmoons) Department of Earth & Planetary Sciences University of California, Riverside UNITED STATES Background: The 850 km-long Alpine Fault (AF) is one of the world’s great laterally-slipping active faults (like California’s San Andreas Fault), which currently accommodates about 80% of the motion between the Australian and Pacific tectonic plates in the …
The majority of LAStools users are processing airborne LiDAR. That should not surprise as airborne is by far the most common form of LiDAR in terms of square kilometers covered. The availability of LiDAR as „open data“ is also pretty much restricted to airborne surveys, which are often tax-payer funded and then distributed freely to …
Pre-Processing Mobile Rail LiDAR with LAStools Weiterlesen »
We at rapidlasso have long been big fans of the biomass and biodiversity work done by Greg Asner’s group and their Carnegie Airborne Observatory. They were, in fact, the earliest „power-users“ of the BLAST extension of LAStools and helped finding all the bugs when rasterizing billions of LiDAR points collected during large-scale surveys in the Amazon into Digital Elevation Models (DEMs) …
Worldwide LiDAR of Rainforest Biomass for REDD+ Weiterlesen »
After accidentally finding Russian tanks in Polish forests I was curious to see if there was something else hiding under the forest canopy. Remember, I randomly picked a 500 by 500 meter LiDAR tile as example data to introduce a group of forestry students to LiDAR processing with LAStools during the ForseenPOMERANIA camp. After extracting ground points with „lasground.exe„, strange bumps appeared in the …
This is the final part of a three-part tutorial on how to use LAStools to implement a pipeline that (1) quality checks a newly received set of raw LiDAR flight strips, (2) tiles and prepares the LiDAR for subsequent exploitation, and (3) generates raster and vector derivatives from the LiDAR points such as DTMs, DSMs, …
Often I get asked about the difference between las2dem.exe and blastdem.exe – the latter being part of the BLAST extension of LAStools. In the academic video from 2006 below, I outline the core technology details behind BLAST, which can seamlessly compute gigantic Delaunay Triangulations from billions of LiDAR points – using very little main memory. …
LAStools‘ BLAST extension can process billions of LiDAR points Weiterlesen »
