Acquisition date : November 2021
Objective: Create a topography plan to support a real estate development plan
Surface area: over 450 hectares
Data precision : +/- 5cm
Cost of project : 10 500$

Tools used :

  • DJIM600 pro drone
  • Green Valley S220 LiDAR
  • Tersus bi-phase GPS (control points)
  • GNSS base

Logiciels utilisés :

  • Ligeoreference – point cloud generation
  • Lidar360 – Trajectory alignment and soil classification
  • Global mapper – Level curves generation
  • Agisoft Metashape – Photogrammetry
  • ArcMap – Results mapping

Methodology used – workflow :

  • GPS ground control points and establishment of GNSS base on a known point to correct the drone liDAR data
  • Data processing of drone images by autocorrelation with Agisoft Metashape software and creation of the orthoimage
  • Georeferenced point cloud generation with the Ligeoreference software and trajectory correction with the LiDAR 360 software
  • Soil classification and overground to determine the topography
  • Generation of level curves from the point cloud ground class
  • Data mapping (orthoimage and level curves)