According to many application requirements, especially in the security field applications of Earth Observation (EO) data, rapid mapping is one of the most important tasks to be performed. It is mainly based, due to time constraints, on manual data analysis and digitization of this visual analysis results. As such, it is based on easier-to-interpret optical data, since SAR data require highly skilled experts to understand and correctly interpret the radar images. SAR data are, however, more likely to be available in the immediate aftermath of an event due to the all-weather capabilities of the radar sensor. This characteristic, coupled with the very high spatial resolution and the short revisit time of low earth orbit systems like TerraSAR-X, make this sort of data potentially very appealing. It is therefore clear the interest for rapid mapping and naturally also for automatic tools capable of exploiting these data and of providing usable maps to decision makers and final users. The talk will present a processing chain suitable for analyzing very high resolution SAR data. This chain is capable of providing interesting results and a first rapid mapping of the scene within hours after acquisitions. The developed processing chain will likely be improved in the future, leading to extremely interesting results for future mapping of urban areas and human settlements at a regional and possibly global level.

Rapid mapping on HR SAR images for disaster management

LISINI, GIANNI;DELL'ACQUA, FABIO;GAMBA, PAOLO ETTORE
2008-01-01

Abstract

According to many application requirements, especially in the security field applications of Earth Observation (EO) data, rapid mapping is one of the most important tasks to be performed. It is mainly based, due to time constraints, on manual data analysis and digitization of this visual analysis results. As such, it is based on easier-to-interpret optical data, since SAR data require highly skilled experts to understand and correctly interpret the radar images. SAR data are, however, more likely to be available in the immediate aftermath of an event due to the all-weather capabilities of the radar sensor. This characteristic, coupled with the very high spatial resolution and the short revisit time of low earth orbit systems like TerraSAR-X, make this sort of data potentially very appealing. It is therefore clear the interest for rapid mapping and naturally also for automatic tools capable of exploiting these data and of providing usable maps to decision makers and final users. The talk will present a processing chain suitable for analyzing very high resolution SAR data. This chain is capable of providing interesting results and a first rapid mapping of the scene within hours after acquisitions. The developed processing chain will likely be improved in the future, leading to extremely interesting results for future mapping of urban areas and human settlements at a regional and possibly global level.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/136174
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