Aerial Survey and Mapping

Goyt Mill

Drones are beginning to replace traditional land based surveys due to increasing levels of accuracy and how much more quickly data can be obtained, which in turn reduces labour costs and accelerates the data acquisition process. The amount of valuable data obtained is also significantly higher, which greatly increases the ‘resolution’ of the final output. From just a few hundred points obtained from a time consuming land based survey, drone photogrammetry produces a point cloud containing many millions of 3D points.

Densified Point Cloud Model of 20 Acre Site Created by Drone Photogrammetry

Deploying the latest DJI Drone and camera technology, and coupled with state of the art mapping (photogrammetry) and data analysis software, we can quickly provide you with 2D / 3D maps and models containing valuable information such as elevation data, contour lines and much more in extremely high detail and accuracy.

Polylines and surfaces can be created from the rendered point cloud and annotations added. Information such as elevation, distance, surface area, and volume measurements can be generated and added. Reports can then be produced and quickly shared with other project collaborators.

Data can be exported in numerous popular file formats for easy integration into your corporate BIM systems such as AutoCAD Civil 3D. Photogrammetry images and point cloud data can be interrogated and manipulated to ensure we give you the data in exactly the format you need it:

Colour Point Cloud.
Points in space representing 3D shapes or objects. Display can be full RGB colour, graded to show terrain elevation or classified into predefined groups such as vegetation, buildings and human made objects etc. Output formats: .las, laz, .ply, .xyz: –

RGB and Elevation Graded Colour Point Clouds

Georeferenced Othomosaic.
Geometrically corrected (ensuring uniform scale) and georeferenced 2D image map output in GeoTiff (.tif) and Keyhole Markup Language (.kml) formats for importing into BIM software platforms: –

2D Georeferenced RGB Orthmosiaic.

Contour Lines.
Points of equal elevation showing the topography of the land in ESRI Shapefile (.shp), AutoCAD (.dxf) and PDF file formats: –

Contour Lines Output Generated From Point Cloud Data.
Contours with elevation labels overlaid on to orthomosaic
Contours with elevation labels overlaid onto orthomosaic.

3D Textured Mesh.
A representation of the shape of the model that consists of vertices, edges, faces and the texture from the images that is projected on it. Can be viewed from any angle and at any time. Provides another perspective to project collaborators allowing them to visualize the land / structures much more effectively than flat drawings can accomplish. Output in formats including numerous 3D modelling formats: –

3D Textured Mesh Generate from Point Could and Photogrammetry Image Data.

Digital Surface (DSM), and Digital Terrain Maps (DTM).
2.5D digital model of the mapped area containing X,Y,Z information which can be imported into apps like Autocad Civil 3D for surface generation. Used also for providing Cut, Fill, Volume and Area Calculations. Output in GeoTiff format (.tif): –

Digital Terrain Map.

Real Time Measurements.
Highly accurate measurements such as cut, fill, area and volume can be calculated and visualised in real time: –

Stockpile Volume Calculation.

Due to the speed at which data is obtained, in construction for instance, we would continue to work with you by periodically modelling or mapping the construction site to provide your engineers with data to compare against your existing plans and drawings. This would allow you to spot potentially expensive errors earlier and more efficiently than with ground based inspections and surveys. Updated reports can be quickly distributed amongst your project members.

Be it anything from an initial survey for a construction project, a follow up map / model for build comparison against existing BIM models, or plant health analysis for agriculture, we will provide you with the best fit solution.

Our mapping and modelling solutions are ideal for areas including: –

  • Construction planning and monitoring.
  • Infrastructure inspections.
  • Agriculture – strategic deployment of materials to improve crop yield.
  • Land development
  • Damage assessment
  • Land / boundary disputes
Crop Health Analysis

Learn more about our equipment..