Bare Earth: LiDAR points that are filtered to represent the ground, are then triangulated to create a 3D surface. Also referred to as a Digital Elevation Model (DEM) or Digital Surface Model (DSM).
There are several different applications for LiDAR systems, such as atmospheric, climate research, bathymetry, and surface terrain. For this site, we will focus directly on the application of surface terrain modeling.
Full Feature: All relevant LiDAR points including ground and points above ground, are triangulated and a 3D surface is created. Also known as a Digital Terrain Model (DTM).
I.M.U.: Inertial Measurement Unit - Used to detect the pitch, roll, and yaw of the aircraft.
G.P.S.: Global Positioning System - Uses satellites to determine the latitude and longitude of the aircraft.
LASER: Light Amplification by Stimulated Emission of Radiation - An optical device that prduces an intense beam of light.
LiDAR: Light Detection and Ranging - A measuring system using laser light, some components include: I.M.U., G.P.S., LASER, refractors, collectors, and data storage tools.
Remote Sensing: Recording information without being in physical contact with the object.
False Color: Can be applied to a Bare Earth or Full Feature model. The change in color represents a change in elevation based on the area of the model.
What is Light Detection And Ranging?