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Automatic detection of seismic damages from very high monoscopic spatial images
Remote sensing technology is increasingly becoming well recognized as a valuable post-earthquake damage assessment tool. In this study, this tool is used to derive an automatic determination of building height, using the advantage of shadow appearance in a very high-resolution imagery produced by QuickBird satellite. In fact, the changes of building structures caused by an earthquake could affect the orientation, shape and size of its shadow and then its height. This characteristic is used to detect damages in buildings, and a classification under these damages is proposed, through the use of two panchromatic images, before and after the quake. A validation of the determination of building height has been performed through several examples. Then, building classification is performed and results obtained by this automatic procedure were in adequacy with in situ conclusion.
Automatic detection of seismic damages from very high monoscopic spatial images
Remote sensing technology is increasingly becoming well recognized as a valuable post-earthquake damage assessment tool. In this study, this tool is used to derive an automatic determination of building height, using the advantage of shadow appearance in a very high-resolution imagery produced by QuickBird satellite. In fact, the changes of building structures caused by an earthquake could affect the orientation, shape and size of its shadow and then its height. This characteristic is used to detect damages in buildings, and a classification under these damages is proposed, through the use of two panchromatic images, before and after the quake. A validation of the determination of building height has been performed through several examples. Then, building classification is performed and results obtained by this automatic procedure were in adequacy with in situ conclusion.
Automatic detection of seismic damages from very high monoscopic spatial images
Asian J Civ Eng
Bensaibi, M. (author) / Saadi, S. (author) / Bouder, A. (author)
Asian Journal of Civil Engineering ; 21 ; 1039-1050
2020-09-01
12 pages
Article (Journal)
Electronic Resource
English