Solid modeling for building extraction from aerial images

This paper discusses tile role of solid modeling in the application area of building extraction in aerial images. The demands of the application require an explicit representation of all visible and geometrically relevant components of the building surfaces on the one hand and a generic structure to cover all occuring shapes of buildings. These requirements are met by a hybrid modeling architecture. To represent building: structures instead of general-purposes solids the solid modeling scheme has to be enhanced to a building modeler incorporating domain specific knowledge. At last modeling has to cover tile gap between three-dimensional object models and two-dimensional images by integrating object modeling and sensor modeling.