Measuring over photographs
Photogrammetry is a set of processes and methods that allow us to obtain the dimensions of an object or part of it through the intersection of photographs. In plain words it is to measure on photographs.
Another result of the treatment of aerial photographs of a terrain is orthophotography, which is the result of applying to the photographs taken the corrections of the focal perspective and the deformations of the terrain with which a photograph is obtained with geometric rigour equivalent to a map.
As both orthophotographs and 3D models are georeferenced, the insertion in Geographic Information Systems (GIS), Google Maps, Catastro, SIGPAC, etc. are included.
The most common applications are topographic surveys, rehabilitation and architectural restoration, archaeological sites, onsite layouts, etc.
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