Aerotriangulation

As Aerotriangulation in is photogrammetry the triangulation referred from the air. The acquisition of several prominent points from several directions by means of broadly overlapping aerial photographs allows the calculation of the relative position of both these nodes and the camera positions .

The method enables the bridging of large spaces in which there are no terrestrially measured fixed points or control points and achieves an accuracy of a few centimeters per kilometer.

Aerotriangulation was developed in the 1950s and initially evaluated with special projectors, opto-mechanical stereo autographs , sometimes also graphically in developing countries. Then the stereo autographic procedure was converted to graphic data processing and further developed for bundle block adjustment .

Literature and Sources

• Franz Ackerl : Geodesy and Photogrammetry , Volume 1 and 2, Verlag Fromme 1956
• Karl Kraus : Photogrammetry Volume 1, 7th edition, de Gruyter, Berlin 2004, p. 273ff.