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Les réseaux de polygones de Thiessen : application à la géolocalisation robuste de caravanserails décrits dans les récits anciens de voyageurs / André Del in Géomatique expert, n° 70 (01/09/2009)
[article]
Titre : Les réseaux de polygones de Thiessen : application à la géolocalisation robuste de caravanserails décrits dans les récits anciens de voyageurs Type de document : Article/Communication Auteurs : André Del, Auteur ; Cinzia Tavernari, Auteur Année de publication : 2009 Article en page(s) : pp 97 - 101 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] polygone de ThiessenRésumé : (documentaliste) Comment la modélisation à base de polygones de Thiessen permet de retrouver l'itinéraire des caravaniers entre deux caravansérails. Numéro de notice : IFN_4462 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76129
in Géomatique expert > n° 70 (01/09/2009) . - pp 97 - 101[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 265-09051 RAB Revue Centre de documentation En réserve L003 Disponible IFN-001-P000634 RAB Revue Nogent-sur-Vernisson En réserve L003 Exclu du prêt Assessment of sliver polygons in geographical vector data / M. Delafontaine in International journal of geographical information science IJGIS, vol 23 n° 6 (june 2009)
[article]
Titre : Assessment of sliver polygons in geographical vector data Type de document : Article/Communication Auteurs : M. Delafontaine, Auteur ; G. Nolf, Auteur ; N. Van De Weghe, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 719 - 735 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] couche thématique
[Termes IGN] détection de changement
[Termes IGN] données vectorielles
[Termes IGN] erreur en position
[Termes IGN] occupation du sol
[Termes IGN] polygone
[Termes IGN] précision des données
[Termes IGN] utilisation du solRésumé : (Auteur) As positional error is a major issue in the assessment of spatial data quality, its propagation has been studied widely in map overlaying. However, few studies deal with a manifest consequence of positional error in map overlaying, namely sliver polygons. Sliver polygons are generally treated as awkward by-products that need to be removed quickly. Nevertheless, as they represent spurious areas, their nature and properties carry useful information, for example, for land use/cover assessment. Therefore, next to sliver removal, there is a need for intelligent detection and eventually further analysis of sliver polygons. This article proposes a general, semi-automated method for the assessment of slivers in vector polygon layers. A case study in Flanders (Belgium) illustrates a possible application in area estimation evaluation of land use allocation classes. Copyright Taylor & Francis Numéro de notice : A2009-315 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810701694838 En ligne : https://doi.org/10.1080/13658810701694838 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29945
in International journal of geographical information science IJGIS > vol 23 n° 6 (june 2009) . - pp 719 - 735[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09041 RAB Revue Centre de documentation En réserve L003 Disponible 079-09042 RAB Revue Centre de documentation En réserve L003 Disponible A geodesic map projection for quadrilaterals / J. Crider in Cartography and Geographic Information Science, vol 36 n° 2 (April 2009)
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Titre : A geodesic map projection for quadrilaterals Type de document : Article/Communication Auteurs : J. Crider, Auteur Année de publication : 2009 Article en page(s) : pp 131 - 147 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Projections
[Termes IGN] polygone
[Termes IGN] projection
[Termes IGN] transformation de coordonnées
[Termes IGN] transformation linéaireRésumé : (Auteur) Part of a cuboctahedron-based geodesic map projection by Buckminster Fuller is expanded to spherical quadrilaterals with opposite sides equal. Points on such a quadrilateral can be described by intersections of geodesies, which provide parameterized coordinate values in a Geodesic Coordinate System. Through a linear transform of the geodesic coordinates, a spherical quadrilateral maps to a parallelogram. The resulting map has the same constant scale on all four sides. Within the map, all lines parallel to the sides correspond to geodesies on the globe. Spherical rectangles, spherical squares, and diamonds (spherical rhombi) are specifically examined; various tiling sets of diamonds can be used to cover the globe. Non-projection applications in geometry, astronomy, and computer graphics are described. Copyright CaGISociety Numéro de notice : A2009-163 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/POSITIONNEMENT Nature : Article DOI : 10.1559/152304009788188781 En ligne : https://doi.org/10.1559/152304009788188781 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29793
in Cartography and Geographic Information Science > vol 36 n° 2 (April 2009) . - pp 131 - 147[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-09021 RAB Revue Centre de documentation En réserve L003 Disponible Dynamic hybrid terrain representation based on convexity limits identification / M. Bóo in International journal of geographical information science IJGIS, vol 23 n°3-4 (march - april 2009)
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Titre : Dynamic hybrid terrain representation based on convexity limits identification Type de document : Article/Communication Auteurs : M. Bóo, Auteur ; M. Amor, Auteur Année de publication : 2009 Article en page(s) : pp 417 - 439 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] convexité
[Termes IGN] modèle numérique de terrain
[Termes IGN] planification urbaine
[Termes IGN] quadrillage
[Termes IGN] tessellation
[Termes IGN] triangle
[Termes IGN] Triangulated Irregular Network
[Termes IGN] visualisation 3DRésumé : (Auteur) Hybrid digital terrain models combine terrain data with different topologies and resolutions. Cartographic digital terrain models are typically composed of regular grid data that can be locally refined by adding a Triangulated Irregular Network (TIN) that represents morphologically complex terrain parts. Direct rendering of both datasets to visualize the digital terrain model generates discontinuities, as the meshes are disconnected. The utilization of complete/partial precomputed tessellation solutions solves the problem of quality, but limits the applicability of the representation to models with a fixed relative position between datasets. In this paper, we present a new scheme for hybrid terrain representation that permits the dynamic generation of the adaptive tessellation required to join the grid and TIN models. Our proposal permits the dynamic modification of the relative position between datasets. This increases the representation capabilities for those applications where this property is interesting as, for example, urban and landscape planning applications. The algorithm we propose is based on the identification of convex areas on the TIN and the efficient generation of triangles to join the models based on this convex structure. As a result, high quality models without discontinuities are obtained, increasing the flexibility of previous solutions based on fixed precomputations. Copyright Taylor & Francis Numéro de notice : A2009-157 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810801932039 En ligne : https://doi.org/10.1080/13658810801932039 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29787
in International journal of geographical information science IJGIS > vol 23 n°3-4 (march - april 2009) . - pp 417 - 439[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09021 RAB Revue Centre de documentation En réserve L003 Disponible 079-09022 RAB Revue Centre de documentation En réserve L003 Disponible A Polygonal approach for automation in extraction of serial modular roofs / Y. Avrahami in Photogrammetric Engineering & Remote Sensing, PERS, vol 74 n° 11 (November 2008)
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Titre : A Polygonal approach for automation in extraction of serial modular roofs Type de document : Article/Communication Auteurs : Y. Avrahami, Auteur ; Y. Raizman, Auteur ; Y. Doytsher, Auteur Année de publication : 2008 Article en page(s) : pp 1365 - 1378 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] base de connaissances
[Termes IGN] classificateur paramétrique
[Termes IGN] extraction automatique
[Termes IGN] extraction de traits caractéristiques
[Termes IGN] polygone
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] toit
[Termes IGN] visualisation 3DRésumé : (Auteur) This paper presents a novel approach for automation in roof extraction from two solved aerial images. The approach assumes that roofs are composed of several spatial polygons, and that they can be obtained by extracting all or even only some of them if the model is known. In view of this assumption, innovative algorithms for semi-automatic spatial polygon extraction were developed. These algorithms are based on a 2D approach to solving the 3D reality. Based on these algorithms, an interactive and semi-automatic modelbased approach for automation in roof extraction was developed. The approach is composed of two phases: manual (interactive) and automatic. In the manual (interactive) phase, the operator needs to choose an Expanded Parameterized Model (EPM) from a knowledge base and select one pre-prepared Interactive Option for Extraction (IOE) of the roof. Then, the operator needs to point according to the guidelines of the chosen option in the left image space. In the automatic phase, the selected spatial polygons are extracted, the parameters of the selected model are calculated and the roof is reconstructed. The approach was examined and the results we obtained had standard accuracy. It appears that the approach can be implemented on many types of roofs and under diverse photographic conditions. In this paper, the algorithms, the experiments and the results are detailed. Copyright ASPRS Numéro de notice : A2008-409 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.74.11.1365 En ligne : https://doi.org/10.14358/PERS.74.11.1365 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29401
in Photogrammetric Engineering & Remote Sensing, PERS > vol 74 n° 11 (November 2008) . - pp 1365 - 1378[article]Generalized network Voronoi diagrams: concepts, computational methods, and applications / Atsuyuki Okabe in International journal of geographical information science IJGIS, vol 22 n° 8-9 (august 2008)PermalinkReducing edge effects in the classification of high resolution imagery / Guiyun Zhou in Photogrammetric Engineering & Remote Sensing, PERS, vol 74 n° 4 (April 2008)PermalinkSensitivity analysis of spatially aggregated responses: a gradient-based method / F. Pantus in International journal of geographical information science IJGIS, vol 22 n° 4-5 (april 2008)PermalinkPolygon-based texture mapping for cyber city 3D building models / F. Tsai in International journal of geographical information science IJGIS, vol 21 n° 9-10 (october 2007)PermalinkData fusion of high-resolution satellite imagery and Lidar data for automatic building extraction / Gunho Sohn in ISPRS Journal of photogrammetry and remote sensing, vol 62 n° 1 (May 2007)PermalinkEvaluating the uncertainty caused by Post Office Box addresses in environmental health studies: A restricted Monte Carlo approach / X. Shi in International journal of geographical information science IJGIS, vol 21 n° 3-4 (march - april 2007)PermalinkComparative tempo-spatial pattern analysis: CTSPA / Y. Xie in International journal of geographical information science IJGIS, vol 21 n° 1-2 (january 2007)PermalinkFast cluster polygonization and its applications in data-rich environments / I. Lee in Geoinformatica, vol 10 n° 4 (December 2006)PermalinkPermalinkDiffusion et tatouage des données géographiques / Jean Béguec (2006)PermalinkLa sectorisation tâte du SIG / Françoise de Blomac in SIG la lettre, n° 73 (janvier 2006)PermalinkStratified sampling of satellite images with a systematic grid of points / F.J. Gallego in ISPRS Journal of photogrammetry and remote sensing, vol 59 n° 6 (November 2005)PermalinkA vector-GIS extension for generalization of binary polygon patterns / H. Millward in Cartographica, vol 39 n° 4 (December 2004)PermalinkGeometric variability of raster cell class assignment / A.M. Shortridge in International journal of geographical information science IJGIS, vol 18 n° 6 (october 2004)PermalinkModelling error propagation in vector-based overlay analysis / Wei Shi in ISPRS Journal of photogrammetry and remote sensing, vol 59 n° 1-2 (August 2004 - April 2005)PermalinkPredicting forest age classes from high spatial resolution remotely sensed imagery using Voronoi polygon aggregation / T. Nelson in Geoinformatica, vol 8 n° 2 (June - August 2004)PermalinkA probability-based uncertainty model for point-in-polygon analysis in GIS / C.K. Cheung in Geoinformatica, vol 8 n° 1 (March - May 2004)PermalinkApplication of wavelet transform for extracting edges of paddy fields from remotely sensed images / T. Ishida in International Journal of Remote Sensing IJRS, vol 25 n° 2 (January 2004)PermalinkRecalage vectoriel 3D de contours de bâtiments à partir d'un couple d'images aériennes stéréoscopiques / D. Rambourg (2004)PermalinkAutonomous space resection using point- and line-based representation of free-form control linear features / A. Habib in Photogrammetric record, vol 18 n° 103 (September - November 2003)Permalink