UAS Mapping

Mapping and Modelling with Drones

Photogrammetry involves collecting many images, typically hundreds or thousands, and stitching them together to produce highly accurate and measurable representations of the area covered and objects included. Drones have some obvious advantages in this area as they can gather a huge amount of data in a very short time and with minimal disruption to ongoing operations while improving safety of workers on the ground who can avoid potentially hazardous situations. Drone missions are pre-planned on or off site and flown automatically allowing for exact repetition of inputs at designated intervals over time to monitor change and progress.

Outputs:

• 2D Orthomosaic Maps are images that contain georeferenced data whereby every pixel contains an x, y and z coordinate. These images can be used to obtain centimeter precision accuracy measurements of distances and volumes.

• 3D Point Clouds provide another way of visualising terrain and objects. They can be easily manipulated in a browser to develop a better understanding of

• 3D Models

• DSM and DTM are both digital elevation models where the surface model includes objects on the surface including vehicles, buildings, trees etc but the terrain model excludes these features.