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Synthesizing urban remote sensing through application, scale, data and case studies / E.A. Wentz in Geocarto international, vol 27 n° 5 (August 2012)  

Public [article]  inGeocarto international > vol 27 n° 5 (August 2012) . - pp 425 - 442 Titre : Synthesizing urban remote sensing through application, scale, data and case studies Type de document : Article/Communication Auteurs : E.A. Wentz, Auteur ; D.A. Quattrochi, Auteur ; M. Netzband, Auteur ; S.W. Myint, Auteur Année de publication : 2012 Article en page(s) : pp 425 - 442 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] Atlanta (Géorgie) [Termes IGN] chaleur [Termes IGN] classification barycentrique [Termes IGN] classification ISODATA [Termes IGN] image Landsat-MSS [Termes IGN] image Landsat-TM [Termes IGN] image Quickbird [Termes IGN] image Terra-ASTER [Termes IGN] milieu urbain [Termes IGN] Phoenix [Termes IGN] ville Résumé : (Auteur) This article describes the outcomes of an international workshop on urban remote sensing. The workshop synthesized the needs of remote sensing scientists to better monitor and analyse urban physical and social dynamics. The workshop was held with urban land use forecasting workshop in April 2011 in Arizona. The four major themes of the jointly held workshops were application, data, scale and case studies. Application refers to how data are used to address urban problems. Data refers to the sources and types of raw data available. Scale is the ever-present concern over data reduction and resolution. Case studies examine a single urban area, typically based on one or two primary themes. One outcome was to integrate multiple case studies to form an urban typology. To respond to this need, this article integrates two case studies on the urban heat island in Atlanta, GA and Phoenix, AZ based on the four themes. Numéro de notice : A2012-372 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.687400 Date de publication en ligne : 24/05/2012 En ligne : https://doi.org/10.1080/10106049.2012.687400 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31818 [article]

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059-2012051	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A comparison of two methods to create tracks of moving objects: linear weighted distance and constrained random walk [distance linéaire pondérée et trajet aléatoire contraint] / E.A. Wentz in International journal of geographical information science IJGIS, vol 17 n° 7 (october 2003)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 17 n° 7 (october 2003) . - pp 623 - 645 Titre : A comparison of two methods to create tracks of moving objects: linear weighted distance and constrained random walk [distance linéaire pondérée et trajet aléatoire contraint] Type de document : Article/Communication Auteurs : E.A. Wentz, Auteur ; A.F. Campbell, Auteur ; R. Houston, Auteur Année de publication : 2003 Article en page(s) : pp 623 - 645 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] analyse comparative [Termes IGN] distance pondérée [Termes IGN] incertitude des données [Termes IGN] objet mobile [Termes IGN] positionnement cinématique [Termes IGN] Simiiformes [Termes IGN] trajectographie (positionnement) [Termes IGN] trajet (mobilité) [Termes IGN] variable aléatoire Résumé : (Auteur) As an object moves through space, it creates a track (or path) representing the object's past and present position and associated attributes. If data capture falls, then positions along the tracks are unknown. The particular problem we address in this paper is to create tracks of moving objects with missing data. We implement and test two techniques that create continuous tracks of two primate species (Ateles geoffroyi, the red spider monkey, and Cebus capucinus, the whitefaced capuchin). Continuous tracks were needed to calculate home range and to analyze daily ranging patterns for each species. Establishing continuous tracks of primates through field data alone, however, was impossible due to challenging field conditions. The results of the analysis using tracks with interpolated positions helped establish that Ateles tend to move directly to their destination while Cebus tended to follow a more wandering track. Numéro de notice : A2003-257 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1080/1365881031000135492 En ligne : https://doi.org/10.1080/1365881031000135492 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22552 [article]

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079-03071	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-03072	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Extracting high points from statistical surfaces: a case study using digital elevation model / E.A. Wentz in Cartography and Geographic Information Science, vol 28 n° 4 (October 2001)  

Public [article]  inCartography and Geographic Information Science > vol 28 n° 4 (October 2001) . - pp 259 - 271 Titre : Extracting high points from statistical surfaces: a case study using digital elevation model Type de document : Article/Communication Auteurs : E.A. Wentz, Auteur ; M. Kuby, Auteur ; B. Vogt, Auteur Année de publication : 2001 Article en page(s) : pp 259 - 271 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] Arizona (Etats-Unis) [Termes IGN] extraction automatique [Termes IGN] modèle numérique de surface [Termes IGN] sommet (relief) [Termes IGN] surface (géométrie) Résumé : (Auteur) We introduce and test an algorithm for extracting highpoint locations from statistical surface data. The algorithm uses map algebra and local neighbourhood analysis via three key parameters: minimum vertical gain, vertical gain neighbourhood, and horizontal separation neighbourhood. Though the method is applicable to any x,y,z data set, we tested it on 1:250,000 digital elevation models (DEMs) for Arizona. The resulting high points were compared quantitatively with an independent data set of named summits from the USGS Geographic Names Information System (GNIS). The comparison showed that, on an aggregate basis, the extraction method can approximate the number and spatial pattern of high points when compared to the GN IS points. However, extraction by neighbourhood analysis may consistently misdiagnose certain features, such as the edges of troughs (e.g., canyon rims). Numéro de notice : A2001-163 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1559/152304001782152964 En ligne : https://doi.org/10.1559/152304001782152964 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21858 [article]

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032-01041	RAB	Revue	Centre de documentation	En réserve L003	Disponible