Cartographic enrichments of 3D city models - state of the art and research perspectives
ISBN 978-85-88783-11-9
Authors
1Peters, S.
1TUM; DEPARTMENT OF CARTOGRAPHY Email: stefan.peters@bv.tum.de
Abstract
This paper reports on cartographic enrichments of digital urban landscapes. In the recent years 3D city models have become effective and powerful tools that support the simulation and visualization of our real world in a more and more realistic and detailed way. At the same time, there is a growing interest in comprising more information in the virtual living environment in addition to in-and exterior geometric features, roof and facade textures. A lot of information is related to houses, floors, flats, rooms, etc. but also to persons or specific features at certain urban locations. The paper will introduce the approaches of cartographic enrichments with the aim to bring added values to 3D digital cities. The following questions are tackled: How to extract, model and visualize location-related 3D information from data sources such OpenStreetMaps, Twitter, or Facebook? Which options enable modelling and mapping of time information embedded in open source data? How can the internet-based information processing, classification and visualization methods are adapted to handle the uncertain but useful additional building information? How to visually tell the stories about the enriched city models? How to visually explore the spatio-temporal nature of an enriched city model with its multiple attributes?