Survey Instruments for Drones

Accurate 3D mapping can only be achieved via aerial drone surveying
that generates imagery data that can penetrate vegetation.

Use case

Objective

Regardless if it’s a commercial or governmental activity, forest management requires data on forest to make proper decisions. Even if Photogrammetry can be usefull for tree species identification, it is not accurate for inside-canopy information and cannot give a precise information about DTM under dense vegetation. Hence, it cannot provide a reliable tree height measurment.

Results

An airborne survey using YellowScan is the only way to penetrate the vegetation of a forest in order to produce a terrain model (DTM) and get inside-canopy information for tree species identification, height and size measurments, or volume of wood per hectare information.

Canopy height model

Key benefit of a UAV + YellowScan Lidar system

  • Higher accuracy of Biomass estimation, under canopy layer and ground modelisation: Because the YellowScan flyes lower and slower than a standard airborne Lidar, the YS data shows a higher point density and more echoes under the canopy. This leads to a better classification of trees, a more accurate modelling of the canopy layers and ground topography. Thus, biomass estimation is more accurate.
  • Autonomy: easy-to-use even by non topograph professionals: You don’t rely on third-party experts or pilots
  • Freedom of surveying when you want, where you want. Quick, light and easy mobilization: whole system can be carried in car trunk or airplane luggage
  • Rugged & Reliable: compatible with most difficult field conditions (extreme temperatures, humidity, vibrations, dust,..)
  • Affordable exploration of limited areas (much cheaper than classical airborne Lidars)

Yellowscan dsm othophoto