Airborne LiDAR scanning is an active remote sensing technology, which is capable to gather very precise data over a large area in a short period of time and it is applicable to measure areas where traditional on-field geodesic surveys would require great efforts and resource needs.
Orthophotographs offer the advantage to represent earth surface without distortion (because advanced corrections and processing are applied). Thus they allow the identification and the accurate mapping of geographic features (e.g. buildings, roads, vegetation, landmarks, etc) in geographic information systems (GIS).
The spectrum of images assessed through aerial hyperspectral technology contain information that is invisible to the human eye.
The technological advances of the past decade accelerated the improvement of remote controlled and automated tools. Perhaps, the most intensive progress and the greatest attention was focused on the development of UAVs (Unmanned Aerial Vehicles) and their applications.