Most commonly used to create topographic maps for the Ordnance Survey, photogrammetry is the practice of using photographic images of physical objects to obtain information. In survey practice photogrammetry is typically used to record information concerning buildings or structures to create 3D data which in turn can be used for whatever the client requires. The data output can range from a 2D building elevation to a full photo-realistic rendered model and are normally instructed by engineers, architects, planners, and anyone needing precise maps of an area or feature.
One of the main benefits of photogrammetry over other survey types is the ability to add detail to the survey without the need to re-visit site.
The benefits of Photogrammetry:
- The photographs offer an archive of data for future use
- Ideal for recording detail of a complex nature
- A high level of accuracy is achievable
- The use of digital data ensures total flexibility
- The level of detail to be extracted can be decided by the client or ourselves
- Detail can be added without the need to return to site
- Offer a 3D representation of items and landmarks that may have changed over time
