Christian Strobl

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relationships between geometries. It is based on the Nine-Intersection Model (9IM) or Egenhofer-Matrix which in turn is an extension of the Four-Intersection Model (4IM). The Dimensionally Extended Nine-Intersection Model considers the two objects’ interiors, boundaries and exteriors and analyzes the intersections of these nine objects parts for their(More)
A two-component fully automated flood monitoring system is described and evaluated. This is a result of combining two individual flood services that are currently under development at DLR’s (German Aerospace Center) Center for Satellite based Crisis Information (ZKI) to rapidly support disaster management activities. A first-phase monitoring component of(More)
The analysis of the quantization error in fixed-point arithmetic is usually based on simplifying assumptions. The quantization error is modelled as a random variable which is independent of the quantized variable. This contribution investigates the wordlength reduction of a digital multiplier in greater detail. The power spectrum of the quantization is(More)
Natural and man-made disaster, whose impact has been increasing on the last years, present a series of common dynamics which can be exploited for a more ef®cient emergency management. Current disaster management systems focus on single types of emergencies and cannot be ̄exibly adapted to the respective situation. The presented approach developed during the(More)
to make them geometrically interoperable with datasets of a higher absolute positional accuracy. To date most PAI programs were implemented as coordinated programs. These programs usually focused on the improvement of a particular dataset and were focused on the individual requirements for geometric interoperability of this dataset with those of a higher(More)