GTA Geoinformatik GmbH at the Intergeo 2009 in Karlsruhe
(VDV Magazin 6-2009)

At the booth of GTA the most important topic was automatic roof modelling with tridicon^TM ROOF, a software developed by GTA. Based on photogrammetric methods this technology offers an excellent cost-performance-ratio in the production of 3D city models.

Also presented was the camera system GeoSIS which was developed to take vertical and oblique imagery within the same flight misssion.

Using parts of a 3D city model of Munich different possibilities to texture roofs and facades were presented.

Great interest attracted the 3D city model of Berlin which covers with 892 sqkm the whole city in level of detail 2. Despite the large data volume the model can be visualised in realtime using the dynamic paging technology of the tridicon^TM CityDiscoverer that makes data processing very fast. The software can therefore handle very large 3D models of any size.

Recent orthophotos of Berlin were produced in 2009 and can be purchased from GTA.