lasground

is a tool for bare-earth extraction: it classifies the LiDAR points into ground points (class = 2) and non-ground points (class = 1). The tools works very well in natural environments such as mountains, forests, fields, hills, and even steep terrain but also gives excellent results in towns or cities. For more details see the README file. Below some typical results:

lasground_city_before

lasground_city_after

lasground_forrest_before

lasground_forrest_after