Bluesky’s Digital Terrain and Elevation Models are photogrammetrically derived using specialist software to measure common points in overlapping aerial images. The height models provide measurements at 2 and 5 metre resolutions, for the DEM and DTM respectively, with positional accuracies of up to 1 metre. Enhancement using LiDAR (Light Detection and Ranging) data in urban areas can enable accuracies of up to 25 centimetres to be achieved.
The Bluesky data supplied to Kent County Council is part of the GeoPerspectives product range, a joint venture between Bluesky and Infoterra providing national coverage of orthorectified aerial photography, digital terrain & surface models (DTM/DSM) for 3D modelling, and colour infrared imagery (CIR) for vegetation analysis.
Bluesky is a UK-based specialist in aerial imaging and remote sensing data collection and processing. An internationally recognised leader with projects extending around the globe, Bluesky is proud to work with prestigious organisations such as Google, the BBC and Government Agencies.
Bluesky has unrivalled expertise in the creation of seamless, digital aerial photography, 3D landscape/cityscape visualisations and prints and also runs a national mapping centre, providing digital mapping, satellite imagery and aerial photography including ultra-high resolution imagery of cities and towns.
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