Photogrammetry and our services

Photogrammetry uses the basic principle of Triangulation, whereby intersecting lines in space are used to compute the location of a point in all three dimensions. However, in order to triangulate a set of points one must also know the camera position and aiming angles (together called the orientation) for all the pictures in the set. The process of converting a stereo pair or photographs into a 3-dimensional model is called the Bundle Adjustment.

Triangulation is the principle used to produce 3-dimensional point measurements. By mathematically intersecting converging lines in space, the precise location of the point can be determined. Unlike theodolites which can only measure single points at any one time, photogrammetry can simultaneously measure a virtually unlimited number of multiple points.

Photogrammetry is used in different fields, such as topographic mapping, architecture, engineering, police investigation, and geology, as well as by archaeologists to quickly produce plans of large or complex sites. It is also used to combine live action with computer generated imagery in movie post-production; Fight Club is an excellent example of the use of photogrammetry in film.

The results of photogrammetry can be:

• Coordinates of the required object-points
• Topographical and thematical maps
• Rectified photographs (orthophoto).

Its most important feature is the fact, that the objects are measured without being touched.