Abstract
Mapping of the urban damage levels with synthetic aperture radar (SAR) is still challenging. Fully polarimetric SAR (PolSAR) has the potential to identify the type of scattering mechanism changes induced by urban damage. In radar polarimetry, dominant double-bounce scattering mechanism in urban areas is primarily induced by the ground-wall structures. Thereby, within an urban patch, the reduction of the dominant double-bounce scattering mechanism reflects the urban damage level in terms of destroyed ground-wall structures, which is the basis of this study. Based on our previous study, the proposed polarimetric index is further investigated. A rapid urban damage mapping technique including mainly two steps of urban area extraction and damage level index estimation is proposed. The 3.11 East Japan Earthquake and Tsunami is adopted as the study case using multi-temporal ALOS/PALSAR PolSAR data. Experimental studies demonstrate that the estimated damage levels are closely consistent to the ground-truth.
Original language | English |
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Title of host publication | International Geoscience and Remote Sensing Symposium (IGARSS) |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 3790-3793 |
Number of pages | 4 |
Volume | 2015-November |
ISBN (Print) | 9781479979295 |
DOIs | |
Publication status | Published - 2015 Nov 10 |
Event | IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Milan, Italy Duration: 2015 Jul 26 → 2015 Jul 31 |
Other
Other | IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 |
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Country/Territory | Italy |
City | Milan |
Period | 15/7/26 → 15/7/31 |
Keywords
- damage mapping
- earthquake
- radar polarimetry
- scattering mechanism
- Synthetic aperture radar (SAR)
- tsunami
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Computer Science Applications