Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3378
AuthorsStramondo, S.* 
Pierdicca, N.* 
Chini, M.* 
Bignami, C.* 
TitleSpace remote sensing for urban damage detection, mapping and mitigation
Issue Date7-Nov-2007
URIhttp://hdl.handle.net/2122/3378
KeywordsSAR
damage detection
Subject Classification04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk 
AbstractIn the last years the remote sensing techniques have been demonstrated a suitable monitoring tool for providing data useful for disaster mitigation. In particular, in case of strong earthquake, the rapid detection of damaged buildings and infrastructures has assumed an important role for the civil protection rescue activities. Moreover, the damage assessment can help the redevelopment process of the hit area. The Synthetic Aperture Radar (SAR) is widely used in environmental studies thanks to its peculiarities which allow a fairly synoptic view in almost completely weather and time independent conditions. SAR has been revealed a powerful instrument for change detection and damage evaluation purpose. In particular, interferometric features like the InSAR phase coherence and the intensity correlation of multi-look images collected before and after an earthquake have been used in previous works to detect and quantify changes in built-up area. On the other side, optical sensors have also been successfully used for damage estimation. Thanks to the strong increase of their spatial resolution, reaching to less than 1 meter per pixel, the new optical sensors have become reliable systems for detecting changes of single buildings. However, the presence of clouds, shadows, variation in Sun illumination and geometric distortions are critical for this type of sensors and prevent a fully automatic change detection approach. When both optical and SAR are available, a damage classification can also be obtained by combining the two data types, leading to a more reliable result. This work proposes an effective procedure oriented to the damage mapping. From data requirements (satellite images and auxiliary data) to product delivery the chain for damage mapping is described. This latter in order to provide new instruments useful to Civil Protection Departments and Administrations for disaster management.
Appears in Collections:Conference materials

Files in This Item:
File Description SizeFormat 
GeoHAzard_poster_damage.ppt364.5 kBMicrosoft PowerpointView/Open
Show full item record

Page view(s)

59
checked on May 26, 2017

Download(s)

287
checked on May 26, 2017

Google ScholarTM

Check