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Preparing a new data set for earthquake damage detection in SAR imagery: The Christchurch example I

 
: Kuny, Silvia; Hammer, Horst; Schulz, Karsten

:

Notarnicola, C. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
SAR Image Analysis, Modeling, and Techniques XIV : 24-25 September 2014, Amsterdam, Netherlands
Bellingham, WA: SPIE, 2014 (Proceedings of SPIE 9243)
ISBN: 9781628413069
Paper 92430X, 8 pp.
Conference "SAR Image Analysis, Modeling, and Techniques" <14, 2014, Amsterdam>
English
Conference Paper
Fraunhofer IOSB ()
Simulation; 3D city model; GIS map; radiometry

Abstract
As the introducing first part of this paper, the data set of Christchurch, New Zealand, is outlined with regard to its purpose: the detection of earthquake damages. The aim is to produce simulated SAR images that are realistic enough to function successfully as pre-event images in a change detection effort. To this end, some modifications to the input 3D city model are introduced and discussed. This includes the use of a GIS map, for a realistic modelling of the radiometric variety, and the insertion of high vegetation to the model, so as to achieve a realistic occlusion of building corners. A detailed description of the impact, these modifications have on the simulation, is given and a comparison between the simulations and corresponding real data is drawn.

 

As the introducing first part of this paper, the data set of Christchurch, New Zealand, is outlined with regard to its pur-pose: the detection of earthquake damages. The aim is to produce simulated SAR images that are realistic enough to function successfully as pre-event images in a change detection effort. To this end, some modifications to the input 3D city model are introduced and discussed. This includes the use of a GIS map, for a realistic modelling of the radiometric variety, and the insertion of high vegetation to the model, so as to achieve a realistic occlusion of building corners. A detailed description of the impact, these modifications have on the simulation, is given and a comparison between the simulations and corresponding real data is drawn.

: http://publica.fraunhofer.de/documents/N-318099.html