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Rapid damage assessment of built-up structures using VHR satellite data in tsunami-affected areas

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This paper discusses a general methodology for post-tsunami damage assessment and an automatic procedure able to distinguish between different kinds of damage on built-up structures using very-high-resolution satellite data. The procedure for automatic detection of damaged built-up structures was designed using a multi-criteria approach fusing radiometric, textural, and morphological image features related to pre- and post-disaster data detection. The proposed procedure shows good performance with an estimated overall accuracy equal to 93.97%. The best performances are estimated in the discrimination between non-flooded and flooded built-up structures and in the recognition of collapsed built-up structures with debris in place. Problems of omission error were detected in the recognition of collapsed built-up structures without debris in place as in the case of completed erased built-up structures situated close to the shoreline.
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Document Type: Research Article

Affiliations: European Commission, Joint Research Centre, Institute for the Protection and Security of the Citizen (IPSC), Support to External Security Unit, Via E. Fermi, 1 TP 267 Ispra 21020 (VA), Italy

Publication date: 2007-07-01

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