Computer 3-d site model generation based on aerial images

The technology for three-dimensional model design of real world scenes and its photorealistic rendering are current topic of investigation. Development of such technology is very attractive to implement in vast variety of applications: military mission planning, crew training, civil engineering, architecture, virtual reality entertainments - just a few was mentioned. 3D photorealistic models of urban areas are often discussed now as upgrade from existing two-dimensional geographic information systems. Possibility of site model generation with small details depends on two main factors: available source dataset and computer power resources. In this paper PC based technology is presented, so the scenes of middle resolution (scale of 1:1000) be constructed. Types of datasets are the gray level aerial stereo pairs of photographs (scale of 1:14000) and true color on ground photographs of buildings (scale ca. 1:1000). True color terrestrial photographs are also necessary for photorealistic rendering, that in high extent improves human perception of the scene.