Drone survey can be very useful e.g. in the following application fields:
From each point within the area of interest, the drone shoots several pictures. Appart from creating an orthomosaic, these overlapping pictures then also allow to derive a georeferenced digital surface/terrain model by photogrammetric means. If a precision of centimetres is required, we can offer to set out ground control points. Subsequently, all required output such as contour line maps, volume calculations and comparisons can be accurately created.