[Science_Parameters: Science_Category='EARTH SCIENCE', Science_Topic='LAND SURFACE', Science_Term='TOPOGRAPHY']
GEON Points2Grid UtilityEntry ID: points2grid
Abstract: Points2Grid is a robust and scalable tool for gridding lidar point cloud data to generate Digital Elevation Models (DEMs). Points2Grid uses a local gridding method to compute grid cell elevation using a neighborhood defined around each cell based on a search radius provided by the user (see image below). Points2Grid offers two processing modes - in-core and out-of-core - to allow it to handle ... generation of rasters larger than available memory.
Points2Grid is used as the default DEM generation algorithm for the OpenTopography point cloud processing system, and thus been tested through thousands of DEM generation jobs. The local gridding approach employed by Points2Grid is most effective in situations where lidar shot densities exceed the resolution of the grid to be produced from these data.
ISO Topic Category
Use Constraints Points2Grid is open source and offered under a 4-clause BSD license.
Role: TECHNICAL CONTACT
Email: ccrosby at sdsc.edu
San Diego Super Computer Center 9500 Gilman Drive
City: La Jolla
Province or State: CA
Postal Code: 92093-0505
Role: SERF AUTHOR
Email: Tyler.B.Stevens at nasa.gov
5700 Rivertech Court
Province or State: MD
Postal Code: 20737
Kim, H., Arrowsmith, J R., Crosby, C.J., Jaeger-Frank, E., Nandigam, V., Memon, A., Conner, J., Badden, S.B., Baru, C., An Efficient Implementation of a Local Binning Algorithm for Digital Elevation Model Generation of LiDAR/ALSM Dataset, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract G53C-0921, 2006.
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