Mapping that gives you measurements, not just images.
Accurate 3D models, orthomosaics and volume measurements built from overlapping aerial imagery — site data you can measure against, not just look at.
Overlapping aerial imagery
Orthomosaic, surface model, 3D mesh
Open sites that need measuring
Turning overlapping photographs into measurable geometry
Photogrammetry reconstructs a site from hundreds of overlapping aerial photographs. Where a point on the ground appears in several images taken from different angles, its position can be solved in three dimensions. Do that across a whole site and you get an orthomosaic, a surface model and a measurable 3D mesh of exactly how the ground stood on the day it was flown.
The value sits in the measurement, not the picture. Once a site is reconstructed you can pull stockpile volumes, cut-and-fill quantities, distances and areas straight from the model — then compare one capture against the next to show what actually changed.
What you get
Orthomosaic — a scaled, distortion-corrected aerial image of the entire site
Digital surface model and contours at an agreed interval
Textured 3D mesh and point cloud
Volume calculations for stockpiles, excavations and fill
Ground control integration wherever survey-grade accuracy is required
Exports in the file formats your design or GIS software expects
How it works
Agree the accuracy you need
Absolute accuracy drives every other decision. We establish up front whether the deliverable needs surveyed ground control or whether onboard positioning is sufficient for the job.
Plan the capture
Altitude, image overlap and flight pattern are set from the target ground sample distance and the shape of the terrain.
Fly and control
The site is flown as a systematic grid. Where accuracy demands it, ground control points are placed and surveyed before the flight.
Process and check
Imagery is processed into the agreed outputs and checked against control before anything is delivered.
Common questions
How accurate is a drone survey?
Almost entirely down to whether ground control is used. With surveyed ground control points, photogrammetric output can meet survey tolerances; without them, accuracy is bounded by the aircraft’s own positioning. We will tell you which approach your project needs before we fly, rather than after.
How is this different from LiDAR?
Photogrammetry reconstructs surfaces from imagery, so it can only model what the camera can see — dense vegetation blocks it. LiDAR pulses can find gaps in the canopy and return ground level underneath. For open sites photogrammetry is usually better value; for vegetated terrain, see Lidar.
How often should a site be re-flown?
On active construction, monthly is common for progress tracking; for stockpile reconciliation it usually follows your reporting cycle. Because the flight plan is repeatable, every capture lines up directly against the last one.
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