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Terrestrial laser scanner to detect landslide displacement fields: a new approach / Giordano Teza in International Journal of Remote Sensing IJRS, vol 28 n°15-16 (August 2007)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 28 n°15-16 (August 2007) . - pp 3425 - 3446 Titre : Terrestrial laser scanner to detect landslide displacement fields: a new approach Type de document : Article/Communication Auteurs : Giordano Teza, Auteur ; A. Galgaro, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 3425 - 3446 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] Alpes [Termes IGN] approximation [Termes IGN] données laser [Termes IGN] données localisées [Termes IGN] données multitemporelles [Termes IGN] effondrement de terrain [Termes IGN] Italie [Termes IGN] itération [Termes IGN] télémétrie laser terrestre Résumé : (Auteur) A terrestrial laser scanner (TLS) allows the generation of a detailed model of a landslide surface. In this way, when two or more georeferenced models obtained by multi-temporal scans are available, the landslide displacement field can be computed. Nevertheless, such a computation is a relatively complex task because the recognition of correspondences among the multi-temporal models is required. The Iterative Closest Point (ICP) algorithm allows the alignment of two 3D objects having a common part by iterative shape matching. A new method for the automatic calculation of a landslide displacement field is presented here. It is based on a piecewise application of the ICP algorithm and is made possible by the robustness of this algorithm against noise and small morphological modifications. After a series of numerical experimentations, this method was successfully applied to two test sites located in the North-Eastern Italian Alps affected by high-risk landslides of the slump type (Perarolo di Cadore and Lamosano) with very different observational conditions. Copyright Taylor & Francis Numéro de notice : A2007-358 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160601024234 En ligne : https://doi.org/10.1080/01431160601024234 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28721 [article]

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