The aim of this photogrammetric project was to evaluate aerial imagery in order to produce an orthomosaic together with a Digital Elevation Modell with a sub-metric resolution.

Various data can be used as long as the stereo-photographic requirements are fulfilled (longitudinal/lateral overlap) in order to produce information in 3D.

This prototype required about 30 Ground Control Points to produce an DSM with a spatial resolution of 95 centimeters and an RMS error of less than 15 meters. The goal here is more to value pre-existing information than to create a new referential.