Welcome

The 4th International 3D GeoInfo Workshop aims at bringing together international state-of-the-art research and facilitating the dialogue on emerging topics in the field of 3D geo-information. In recent years, research has focused on improving 3D data acquisition technology through remote sensing, photogrammetry, laser altimetry techniques (LiDAR), and visualization technology (3D CAD and Virtual Reality (VR) system) for 3D urban environments. 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. However, researchers still face many challenges today regarding the development of suitable data models representing topological relationships among 3D spatial objects in built environments.

The workshop will be a good opportunity for exchanging ideas on 3D requirements and 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.