The application of digital elevation maps is extended to the field of computer vision. A terrain matching algorithm that makes possible a passive aircraft navigation system is presented. A sequence of aerial images is matched to a reference to a digital map of the 3-D terrain. Stereo analysis of successive images results in a recovered elevation map. A cliff map is then used as a novel, compact representation of the 3-D surfaces. The position and heading of the aircraft are determined via a terrain matching algorithm that locates the unknown cliff map within the reference cliff map. The robustness of the matching algorithm is demonstrated by experimental results using real terrain data.
Navigation using image sequence analysis and 3-D terrain matching
Navigationssystem mit Bildfolgenanalyse und 3-D-Geländeanpassung
1990
8 Seiten, 17 Quellen
Conference paper
English