Roof inspection by drone.
Roof inspection by drone: detection and localization of sealing plate peeling off. Results obtained from 235 aerial shots taken by the company Artech’Drone. Image post-processing and analysis service by Drones Imaging.
Orthophoto and damage visual restitution
3D modeling and damage restitution
Automatic detection and localization of disorders
Analysis carried out as part of an inspection aimed at detecting and locating the tar slabs detachments onto south side of the roof (with a minimum tolerance of 1.5cm).
With this commercial use case and thanks to the Metashape software, the analysis of the digital surface model made it possible to quantify and locate all the waterproofing defects onto the roof (holes and bumps whose amplitude is between 1.5 and 4cm). Apart from these detected defects, our results revealed that 98.7% of the sealing layer was flat (compliant, without pathology).
TECHNICAL INFORMATIONS
- Aerial imagery processing service : Drones Imaging company.
- Flights and aerial imagery : Artech’Drone company.
- Spatial accuracy : centimeter.
- Orthophoto RVB : GSD 1mm.
- Drone : DJI Inspire 2.
- Sensor : FC6520.
- Covered area : 700m².
- Photogrammetry software : Metashape.
- Export formats : GéoTiff, Shp et Pdf.
- Delivery delay : 2 days upon images dataset receipt.