Key Issues of Continuous Updating of Geo-spatial Databases
Jun Chen · Geomatics world (Lemmer) · 2004
The updating of geo-spatial databases is becoming a big challenge for many national and local surveying and mapping organisations in the world. A number of key problems to be solved in continuous updating of the multi-scale geo-spatial databases was discussed in this paper, such as the incremental data modelling of master databases, automatic registration of multi-resource remote sensed imageries and digitized maps, change detection and extraction of key geo-spatial features in GIS environment, updating multi-scale databases with digital generation methods, updating of client databases.