The aim of this study is to build a Web-based virtual tour system, focused at the presentation of archaeological sites. The proposed approach is comprised of powerful techniques such as multiview 3D reconstruction, omnidirectional viewing based on panoramic images, and their integration with GIS technologies. In the proposed method, the scene is captured from multiple viewpoints utilizing off-t...

As the demand on 3D spatial information has increased in South Korea, 3D spatial information services have been provided by the Ministry of Land, Infrastructure and Transport, Seoul City, DaumKakao and other local governments and related companies. In the map-based 3D spatial services, location correction is an important factor that determines the applicability of specific task. Since existing ...

The Web has become a new medium which can display geographical information in rich forms and offer user-friendly interfaces. One of the promising trends in current Geographical Information System (GIS) is the use of Web 3D technology, especially VRML (Virtual Reality Modeling language). As one of the most fundamental geographical information, terrain information is often presented as the base f...

Most current commercial GIS vendors are added function of 3D analysis for the reality visualization more and more. 3D GIS vendors are focus on the 3D visually representation of the terrain and buildings. These are limited in cityscape and landscape, navigating simulation, and 3D visibility analysis. Recently, some researches of 3D spatial analysis is presented cause that the geo-spatial DBMS, e...

When using a 3D deterministic model to evaluate the landslide susceptibility of regional area, processing large amounts of spatial data and identifying the objective for applying the deterministic model would be arduous works. In this research, an enhanced hydrology tool is developed to automatically identify the objectives of research, which are called slope units, from terrain raster data. A ...

There is a need in the humanities for a 3D WebGIS with analytical tools that allow researchers to analyze 3D models linked to spatially referenced data. Geographic Information Systems (GIS) allow for complex spatial analysis of 2.5D data. For example, they offer bird’s eye views of landscapes with extruded building footprints, but one cannot ‘get on the ground’ and interact with true 3D models ...

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While the open source movement already plays in the field of operating systems a significant role, many GIS users know about open source Geographical Information Systems. A number of GIS related projects have been launched the last years with different focus. The paper introduces the major open source GIS GRASS with emphasis on recent developments. Moreover three other projects are described, w...

The paper deals with modelling and management of spatial (3D) data representing real World. Two main software tools are mostly used – GIS and CAD systems. We analyze their functionality from several points of view. There are two main issues. The first one is the characteristics of environment modelled. CAD systems are oriented towards modelling individual man-made objects and structures with re...