History of Photogrammetry

The science of creating images and photographs dates back to the 1400’s believe it or not! Leonardo di Vinci is one of the earlier explorers of the science. Since then other scientists continued this work on projective geometry mathematically. In 1525 Albrecht Duerer used laws of perspective and created an instrument that could be used to create a true perspective drawing. From this same idea scientists began developing mathematical principles of a perspective image using "space resection" (determining the coordinates of a point from two or more images) to find a point in space from which a picture is made. The actual relationship between projective geometry and photogrammetry was first developed by R. Strums and Guido Haick in Germany in 1883. Since then the science went through four development cycles.

· Plane table photogrammetry, from 1850 to 1900

· Analog photogrammetry, from about 1900 to 1960

· Analytical photogrammetry, from about 1960 to present

· Digital photogrammetry, is just now beginning to be a presence in the photogrammetric industry

Now laser scanners and digital images are making a huge impact on the profession of photogrammetry.

Digital Terrain Model

Digital Terrain Model