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Remote sensing satellites, together with aerial and terrestrial platforms (mobile and fixed), produce nowadays huge amounts of data coming from a wide variety of sensors. These datasets serve as main ...
This paper is a review of the activity of the ISPRS WG IV/6 which aims to find better direction of the development of global database. There are some problems in developing global databases for mappin...
Most of the existing change-only solutions for updating topologically structured, topographic databases only work in ideal conditions. We therefore decided to develop a new procedure that would also b...
The availability of high-resolution satellite images could be exploited for upgrading geographic databases at medium scales (1:5,000-1:25,000) as alternative to aerial photogrammetry. The paper presen...
In this work several techniques for the elaboration of landslides databases are compared. The used techniques are the digitising on ortophotographies, the digitising on aerial photographs and geometri...
Upgrading fundamental GIS databases for navigation use is an important work for providing location-based services In this paper, we present a process for extraction road networks in urban city from pa...
This paper presents recent improvements of the CampusGIS of the University of Cologne (http://www.campusgis.de) which is designed, developed and established by the GIS & Remote Sensing research group ...
The cartographic tools have evolved with the time. Today the use of electronic devices and the communication means give cartographers infinite possibilities of a variety of maps. The aim of this work ...
Photogrammetric systems are important sources for GIS databases. Currently, the trend towards the integration of photogrammetric systems and spatial databases is increased significantly. Integration o...
Clustering spatial data can be interpreted as a segmentation or classification process for finding meaningful patterns in geospatial databases. Such patterns can be used to adapt further algorithms to...
The Cultural Heritage has been usually studied from an objective perspective, using the objective data that can be collected through quantitative methods as the photogrammetry or the topographical mea...
Data updating is a significant stage in the life of a geographical information system (GIS). When geodata producers have finished updating their own database (named Master Database, MDB), the proble...
Navigation geo-database is the foundation and vital component of vehicle navigation system. Now almost geo-database is stored in hardware, such as CD, DVD. But, with the development of urban constru...
Updating of navigation databases is an important task to ensure a high level utilization of navigation data. For example, in fundamental topographic databases roads are often represented as a single...
The increasing number of Earth observation sensors on the market is making the choice of optimized data sources to serve operational needs more complex than ever before. Applying a geographic perspe...

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