The book covers the international state-of-the-art research in the field of 3D geo-information modeling. It focuses on comparing several types of 3D models. Due to the rapid developments in sensor techniques more and more 3D data becomes available. Effective algorithms for (semi) automatic object reconstruction are required. 3D analysis and 3D simulation techniques explore and extend the possibilities in spatial applications.

Contenu
Keynotes.- Maps Get Real: Digital Maps evolving from mathematical line graphs to virtual reality models.- On Valid and Invalid Three-Dimensional Geometries.- Papers.- Navigable Space in 3D City Models for Pedestrians.- Towards 3D Spatial Data Infrastructures (3D-SDI) based on open standards experiences, results and future issues.- Re-using laser scanner data in applications for 3D topography.- Using Raster DTM for Dike Modelling.- Development of a Web Geological Feature Server (WGFS) for sharing and querying of 3D objects.- Using 3D-Laser-Scanners and Image-Recognition for Volume-Based Single-Tree-Delineation and -Parameterization for 3D-GIS-Applications.- Automatic building modeling from terrestrial laser scanning.- 3D City Modelling from LIDAR Data.- First implementation results and open issues on the Poincaré-TEN data structure.- Drainage reality in terrains with higher-order Delaunay triangulations.- Surface Reconstruction from Contour Lines or LIDAR elevations by Least Squared-error Approximation using Tensor-Product Cubic B-splines.- Modelling and Managing Topology in 3D Geoinformation Systems.- Mathematically provable correct implementation of integrated 2D and 3D representations.- 3D Solids and Their Management In DBMS.- Implementation alternatives for an integrated 3D Information Model.- Serving CityGML via Web Feature Services in the OGC Web Services - Phase 4 Testbed.- Towards 3D environmental impact studies: example of noise.- The Kinetic 3D Voronoi Diagram: A Tool for Simulating Environmental Processes.- Techniques for Generalizing Building Geometry of Complex Virtual 3D City Models.- Automatic Generation of Residential Areas using Geo-Demographics.- Position papers.- Working Group I Requirements and Applications Position Paper: Requirementsfor 3D in Geographic Information Systems Applications.- Working Group II Acquisition Position Paper: Data collection and 3D reconstruction.- Working Group III Modelling Position Paper: Modelling 3D Geo-Information.- Working Group IV Analysis Position Paper: Spatial Data Analysis in 3D GIS.- Working Group V Visualization Position Paper: 3D Geo-Visualization.