Abstract

The Problem with LiDAR is that there is too much of it.
Track: 3D and Lidar Data
Authors: Kent Galloway

Traditional Digital Terrain Modeling packages worked fine with survey and photogrammetric data but struggle with the larger LIDAR data sets. Various LiDAR ground thinning techniques will be discussed including 3d Analyst, and in particular the ESRI Terrain pyramid’s ability to deal with enormous quantities of point data. Examples will be shown comparing the point counts of field survey and stereo photogrammetric versus LiDAR and quantifying the accuracy of LiDAR pyramiding and thinning methods.