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   The Workshop aims at bringing together international state-of-the-art research and discussing on open problems and issues in the field of 3D geo-information. The 3D geo-information has become an important research area in the last several years because of the increased complexity of task in many geo-scientific applications needing an integration of 3D spatial and attribute data. In the last decades, the research and the industry in 3D GIS have focused on technical issues related to 3D data acquisitions, visualization, data management, and spatial analysis. The fully developed 3D geo-information system would be able to manage 3D geometry and topology, to integrate 3D geometry and thematic information, to analyze both spatial and topological relationships, and to visualize the data in a suitable form.

In recent years, research has been quite successful on improving 3D data acquisition technology through remote sensing, photogrammetry and laser altimetry techniques (LiDAR), and visualization technology (3D CAD and Virtual Reality (VR) system) for 3D urban environments. The resulting 3D models could 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. However, researchers still have challenges to develop suitable data models to represent topological relationships among 3D spatial objects, and to be used for various spatial queries to analyze spatial relations of the objects in built environments. 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 data acquisition, data model, spatial data analysis, geo-visualization and simulation. It offers an interdisciplinary forum to researchers in the closely related fields of:

Data Acquisition and processing: advanced approaches for 3D data collection, processing and methods for real-time data acquisition.

Data model and management: topological, geometrical and network models for representation and maintenance of 3D geo-information in geographical multi-scales.

Data analysis and visualization: frameworks for representing 3D spatial relationships, 3D spatial analysis and algorithms for indoor/outdoor navigation, interpolation, etc. Advanced Virtual Reality and Augmented Reality visualization.

http://3DGeoInfo.uos.ac.kr