ABSTRACT
The use of photogrammetry is based on the possibility of optically projecting the terrain onto a flat surface, which thus recovers the image by means of a photographic emulsion or by digital sensors. After the invention of photography by Nièpce and Daguerre in 1839, the French military topographer Aimé Laussedat constructed a first camera in 1851, which permitted making measurements on photographs. In 1858 the German architect A. Meydenbauer introduced measurements on photos for the documentation of public buildings.
