The COSMO-SkyMed mission offers a unique opportunity to obtain radar data characterized by short revisit time, thus being useful for flood evolution mapping. A procedure to monitor an inundation event using multitemporal COSMO-SkyMed data is presented in this paper. The methodology is based on an automatic image segmentation technique and on the use of a well-established electromagnetic model to correctly explain the radar return from the image segments. It is applied to a series of five COSMO-SkyMed images regarding an event chosen as a test bed, i.e., a flood occurred in Northern Italy in 2009. In order to associate the segments to the classes of flooded or non-flooded areas, some reference multi-temporal backscattering trends have been assumed with the aid of the theoretical model. Using these reference trends as a training set, a classification algorithm has been developed to generate a map of the flood evolution. Although the methodology needs to be further tested on different case studies, our investigation demonstrates the feasibility and the utility of a combined use of an electromagnetic scattering model and an advanced image processing technique for inundation monitoring. (C) 2010 Elsevier Inc. All rights reserved.

Flood monitoring using multi-temporal COSMO-SkyMed data: Image segmentation and signature interpretation / Pulvirenti, Luca; M., Chini; Pierdicca, Nazzareno; L., Guerriero; P., Ferrazzoli. - In: REMOTE SENSING OF ENVIRONMENT. - ISSN 0034-4257. - 115:4(2011), pp. 990-1002. [10.1016/j.rse.2010.12.002]

Flood monitoring using multi-temporal COSMO-SkyMed data: Image segmentation and signature interpretation

PULVIRENTI, Luca;PIERDICCA, Nazzareno;
2011

Abstract

The COSMO-SkyMed mission offers a unique opportunity to obtain radar data characterized by short revisit time, thus being useful for flood evolution mapping. A procedure to monitor an inundation event using multitemporal COSMO-SkyMed data is presented in this paper. The methodology is based on an automatic image segmentation technique and on the use of a well-established electromagnetic model to correctly explain the radar return from the image segments. It is applied to a series of five COSMO-SkyMed images regarding an event chosen as a test bed, i.e., a flood occurred in Northern Italy in 2009. In order to associate the segments to the classes of flooded or non-flooded areas, some reference multi-temporal backscattering trends have been assumed with the aid of the theoretical model. Using these reference trends as a training set, a classification algorithm has been developed to generate a map of the flood evolution. Although the methodology needs to be further tested on different case studies, our investigation demonstrates the feasibility and the utility of a combined use of an electromagnetic scattering model and an advanced image processing technique for inundation monitoring. (C) 2010 Elsevier Inc. All rights reserved.
2011
cosmo-skymed; floods; image segmentation; mathematical morphology; sar
01 Pubblicazione su rivista::01a Articolo in rivista
Flood monitoring using multi-temporal COSMO-SkyMed data: Image segmentation and signature interpretation / Pulvirenti, Luca; M., Chini; Pierdicca, Nazzareno; L., Guerriero; P., Ferrazzoli. - In: REMOTE SENSING OF ENVIRONMENT. - ISSN 0034-4257. - 115:4(2011), pp. 990-1002. [10.1016/j.rse.2010.12.002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/471062
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