September 17, 2010


Aerial imagery: A bird’s-eye view

OS MasterMap is our flagship product family, but have you ever wondered how a photo taken by a plane makes it onto a computer screen as a piece of data? Photogrammetry is the science of measuring and interpreting objects from photographs to answer questions like how high is that feature?

Remote Sensing is the process of acquiring information without coming into physical contact with the subject under investigation. We use this process, in conjunction with ground-based revision by our field surveyors, to update our large-scale databases

We have a large contract in place with external suppliers to supplement our own flying and photogrammetric production.This gives us the capacity to have to 6 planes flying on our behalf at any one time, allowing us to make best use of good weather conditions and process 60 000 to 70 000 sq km (more than a quarter) of Great Britain each year.

An image taken by one of our digital cameras

An image taken by one of our digital cameras

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