UAV laser scanner surveying
UAV laser scanner surveying
Overview… UAV-mounted small Lider system Specialized for terrain measurement Rich LaserScanner specifications Rate: 40,000 points/second, Distance: Reflectance 30% to 250m, Field of view: 90° Distance measurement accuracy: 6mm at 50m, 20mm at 150m Equipped with class-leading INS* Horizontal accuracy: 10mm, vertical accuracy: 20mm, Attitude accuracy: Pitch/Roll 0.015° Characteristics… Why use a 3D laser scanner?! In photogrammetry, it is impossible to measure all terrain surfaces. While photogrammetry is common for UAV measurement content, photographs capture visible landscapes, so when trees are present, only the surface layer of the trees can be captured, and measurements of the ground surface cannot be performed. The Lider system uses lasers to measure the ground by passing through gaps in the trees. By directly measuring both the surface layer of the trees and the ground surface data and performing filtering, it removes the trees and creates terrain map data (DEM) necessary for civil engineering design and other applications.
