Institut für Softwaresysteme in Wirtschaft, Umwelt und Verwaltung Folie 1 DER UMWELT CAMPUS BIRKENFELD ISS Institut für Softwaresysteme in Wirtschaft, Umwelt und Verwaltung Radar Backscatter and Coherence Information supporting high Quality Urban Mapping - case study: sealed area mapping in the city of Mainz/Rhine - Fischer, P. (1) ; Perski, Z. ( 2) ; Wannemacher, S. (1) (1) University of Applied Sciences Trier Informatics Department P.O.B. 1380, D – Birkenfeld (2) University of Silesia Faculty of Earth Sciences Bedzinska 60, PL Sosnowiec
Institut für Softwaresysteme in Wirtschaft, Umwelt und Verwaltung Folie 2 DER UMWELT CAMPUS BIRKENFELD Integration of EO- / GeoData Data integration is a key issue in environmental monitoring systems With the availability of high quality GIS-data we are able to use it for a fine tuning of the algorithms in our thematic processors The solution proposed is based on an integrated analysis of multitemporal multisensor data (IKONOS multispectral- and ERS-SAR data from tandem acquisitions) After pre-processing each set separately (NDVI, average intensity, coherence) a pixel-based classification of the sealing information was done for each thematic layer (winter / late spring acquisitions) The classification process was done based on masked regions defined by the ATKIS object classes (e.g. settlement, forests, agricultural areas) Sealed areas were finally detected on a pixel based map overlay process including the pre-processed data
Institut für Softwaresysteme in Wirtschaft, Umwelt und Verwaltung Folie 3 DER UMWELT CAMPUS BIRKENFELD Results: Sealed Area Mapping IKONOS – MultispectralInterferometric SignaturesATKIS – High level objects Map Overlay Algorithm Due to the medium resolution but also due to double bounce scattering and corner reflections ERS-SAR with low potential in detailed urban mapping of sealed areas Backscatter and coherence information with a higher sensitivity in rural regions