R.Collins, A.Hanson, E.Riseman and H.Schultz,
"Automatic Extraction of Buildings and Terrain from Aerial Images,"
International Workshop on Automatic Extraction of
Man-Made Objects from Aerial and Space Images,
Ascona, Switzerland, April 1995, pp. 169-178.
A system has been developed to acquire, extend and refine 3D
geometric site models from aerial imagery. The system hypothesizes
potential building roofs in an image, automatically locates supporting
geometric evidence in other images, and determines the precise shape
and position of the new buildings via multi-image triangulation.
Model-to-image registration techniques are applied to align new images
with the site model, and model extension and refinement procedures are
performed to acquire previously unseen buildings and improve the
geometric accuracy of the existing 3D models. A correlation-based
terrain recovery algorithm provides complementary information
about the site, in the form of a digital elevation map.
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