Abstract:<p><strong>Abstract.</strong> In this paper a method of detecting buildings in dense populated city areas using a three-dimensional model, produced by aerial images, is described. Further to the detection of the outline of the building, we exact information about the buildings height. The study area is the wider centre of Athens, Greece. Our aim is to exact 3D information for large area, in minimum time and minimum cost, in order to support opensource data bases, such as openstreetmap.org. Th… Show more
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