2nd International Workshop on 3D Geo-Information:
Requirements, Acquisition, Modelling, Analysis, Visualisation

12-14 December 2007, Delft, the Netherlands

The Workshop aims at bringing together international state-of-the-art research in the field of 3D geo-information.
It offers an interdisciplinary forum to researchers in the closely related fields of:
  • Data collection and modelling: advanced approaches for 3D data collection, reconstruction and methods for representation.
  • Data management: topological, geometrical and network models for maintenance of 3D geo-information.
  • Data analysis and visualisation: frameworks for representing 3D spatial relationships, 3D spatial analysis and algorithms for navigation, interpolation, etc. Advanced Virtual Reality and Augmented Reality visualisation.

The Workshop is intended as an interactive platform for both presentations on state-of-the-art research and discussions on open problems. The workshop will consist of a mixture of single-track presentations and discussion (PD) sessions and parallel working group (WG) sessions on specific themes (Requirements, Acquisition, Modelling, Analysis, Visualisation), according to the following format: current problems to be solved, potential solutions, and recommendations by WG (discussion under coordination of a chair and final presentation of the results at the closing plenary session). The presentations will be selected based on their quality by the scientific program committee (peer review of full papers). The setting of this innovative event will be the ancient city of Delft.


Due to the rapid developments in sensor techniques more and more 3D data becomes available. Effective algorithms for (semi) automatic object reconstruction are required. Integration of existing 2D objects with height data is a non-trivial process and needs further research. The resulting 3D models can be maintained in several types of 3D models: TEN (Tetrahedral Network), Constructive Solid Geometry (CSG) models, Regular Polytopes, TIN Boundary representation and 3D volume quad edge structure, layered/topology models, voxel based models, 3D models used in urban planning/polyhedrons, and n-dimensional models including time. 3D analysis and 3D simulation techniques explore and extend the possibilities in spatial applications.

The workshop will be a good opportunity for the exchange of ideas on 3D requirements and comparison of the different techniques in 3D acquisition, modelling and simulation.

The workshop is also supported by the AGS research centre and two on-going Space for Geo-information projects, all related to 3D geo-information, within the Netherlands:
  • Centre for Advanced Gaming and Simulation (AGS): One of the main research themes involves modelling the world. This includes all that is required to create and visualize realistic models of the world. The challenges are to create digital models of real-world objects, both natural objects and man-made objects. Typical techniques to be investigated are data integration, reverse engineering, and automatic scene generation from geographic information systems. (website http://www.gameresearch.nl/research.html).
  • Project RGI-013 ‘Virtual reality for urban planning and security’: Presenting geo-information in 3D virtual reality enhances to raise the accessibility of government plans and improves the insight in the spatial environment. This project develops methods for the efficient data collection of 3D geo-information using terrestrial surveys of a laser scanner and a panoramic optical camera (translated from http://www.rgi.nl).
  • Project RGI-011 ‘3D topography’: There is an increasing need for real 3D topography due to a broad range of applications. Four prototypical applications are analysed with regard to the user wishes and the resulting 3D model requirements. On this basis, a new 3D topographical product model is further developed together with new methods and techniques and for data collection, storage and analysis (translated from http://www.gdmc.nl/3dtopo).