Hi, Kate asked: "It allows mapping of the density of settlements? Or can you extra individual buildings as well?" Answer is: "both". With 2 meter imagery, we got building footprint with some imprecision in the footprint, so our result can be easily generalized into landuse=residential (but we detect even small gardens). With 50 cm imagery, with got quite precise footprint (and have to filter out smaller object like cars, trucks...); but those images are more costly... In any cases, we have many metadata that we can further calibrate with small ground truth to have a complete characterization of a given area.
We also work with humanitarian community and this contribution is largely aimed at these users: in case of emergency/earthquake/flood/fire... the rescue teams need to know where the building are. We want to contribute to this on OSM. Some links on our actions: http://acpobservatory.jrc.ec.europa.eu/theme.php?theme=8 http://isferea.jrc.ec.europa.eu/Search/results.aspx?k=pdna http://www.unitar.org/joining-forces-post-disaster-recovery-and-reconstruction-partnership-between-unosat-ec-and-world-ban Regards, Mayeul El mar, 19-07-2011 a las 16:54 +0800, Kate Chapman escribió: > Hello Mayeul, > > Just to make sure I understand. It allows mapping of the density of > settlements? Or can you extra individual buildings as well? > > We'd be interested in using it to compare to already mapped areas as > well if that is possible. The Humanitarian OpenStreetMap Team is > currently doing workshops and training around building data collection > in Indonesia. We are interested in ways to look at coverage. -- Dr. Mayeul KAUFFMANN, Spatial Data Analyst European Commission, Joint Research Centre (JRC) Geo-Spatial Information Analysis for Global Security and Stability (ISFEREA) Via E. Fermi 2749 - I-21027 Ispra (VA), ITALY http://isferea.jrc.ec.europa.eu _______________________________________________ Imports mailing list [email protected] http://lists.openstreetmap.org/listinfo/imports
