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Quantifiying the building stock optical high-resolution satellite imagery for assessing disaster risk / D. Ehrlich in Geocarto international, vol 25 n° 4 (July 2010)  

Public [article]  inGeocarto international > vol 25 n° 4 (July 2010) . - pp 281 - 293 Titre : Quantifiying the building stock optical high-resolution satellite imagery for assessing disaster risk Type de document : Article/Communication Auteurs : D. Ehrlich, Auteur ; Gunter Zeug, Auteur ; Javier Gallego, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 281 - 293 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] bâtiment [Termes IGN] échantillonnage d'image [Termes IGN] image à haute résolution [Termes IGN] image optique [Termes IGN] inférence statistique [Termes IGN] inventaire du bâti [Termes IGN] Philippines [Termes IGN] risque naturel [Termes IGN] séisme Résumé : (Auteur) This study uses high-resolution (HR) satellite imagery to quantify the stock of buildings, referred herein as building stock. The risk assessment requires information on the natural hazards and on the element at risk, that is the building stock in this article. This study combines (1) texture-based image processing to map built-up areas, (2) statistical sampling that allows locating the building samples and (3) photo-interpretation to encoding building footprints. Statistical inference is then used to quantify the building stock per class of building size. Legaspi in the Philippines is used as a case study. The results show that texture-based computer algorithms provide accurate area estimations of the built-up, that the detail of HR imagery allows the mapping of single buildings using photo-interpretation, and that a systematic sampling approach that uses building encoding and built-up maps can be used to quantify the building stock. Numéro de notice : A2010-277 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040903521829 Date de publication en ligne : 09/04/2010 En ligne : https://doi.org/10.1080/10106040903521829 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30471 [article]

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