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Units : Geospatial Analysis | ULB568
Up-to-date knowledge of land cover is an important tool for the various planning authorities with responsibilities for the management of territory. The geospatial objects are changing over time and the land cover information (vector geospatial database) has to be up-date periodically.The vector geospatial databases at a local scale in Belgium (e.g. Agriculture Directorate-General crop field database, National Geographic Institute 1/10000 topographic maps, Projet Informatique de Cartographie Continue of the Walloon Ministry of Transport and Equipment) were carried out by digital cartographic production process based on aerial photographs, and the update of these databases is now at the agenda.The VHR satellite data are, since 1999, capable to meet the mapping and monitoring needs of municipal and regional planning agencies. Indeed, these data from the sensors Ikonos, QuickBird, OrbView-3, and in near future, the Pléiades-HR French sensors, have spatial resolution lower than 5 m in multispectral mode and lower than 1 m in panchromatic mode.In this context, this post-doctoral research project suggests to use region based classification of VHR satellite data in different change detection processes for updates of vector database.
• Autres ministères fédéraux
• Autres fonds publics belges