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Institut für Softwaresysteme in Wirtschaft, Umwelt und Verwaltung Folie 1
DER UMWELT CAMPUSBIRKENFELD
ISS Institut für Softwaresystemein 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 – 55761 Birkenfeld
(2)University of Silesia
Faculty of Earth Sciences
Bedzinska 60, PL 41-200 Sosnowiec
Institut für Softwaresysteme in Wirtschaft, Umwelt und Verwaltung Folie 2
DER UMWELT CAMPUSBIRKENFELD
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 CAMPUSBIRKENFELD
Results: Sealed Area Mapping
IKONOS – Multispectral Interferometric Signatures ATKIS – 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
