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Titre : Photogrammetric Week 2015, 55th week Type de document : Actes de congrès Auteurs : Dieter Fritsch, Éditeur scientifique Editeur : Stuttgart : Institüt für Photogrammetrie der Universität Stuttgart Année de publication : 2015 Conférence : PhoWo 2015, 55th Photogrammetric Week 07/09/2015 11/09/2015 Stuttgart Allemagne OA Proceedings Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie
[Termes IGN] acquisition de données
[Termes IGN] CityGML
[Termes IGN] drone
[Termes IGN] géovisualisation
[Termes IGN] modélisation 3D
[Termes IGN] photogrammétrie métrologiqueNote de contenu : Introduction
Remotely Sensed Data Acquisition - An Update
Advanced Modelling in Photogrammetry, Computer Vision and Computer Graphics
Excellence in GeoinformaticsNuméro de notice : 17275 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes DOI : sans En ligne : http://www.ifp.uni-stuttgart.de/publications/phowo15/index.en.html Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82460 Visual accceptance of library-generated CityGML LOD3 building models / Ryan Garnett in Cartographica, vol 49 n° 4 (Winter 2014)
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Titre : Visual accceptance of library-generated CityGML LOD3 building models Type de document : Article/Communication Auteurs : Ryan Garnett, Auteur ; Jason T. Freeburn, Auteur Année de publication : 2014 Article en page(s) : pp 218 - 224 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] CityGML
[Termes IGN] données localisées 3D
[Termes IGN] géométrie
[Termes IGN] modèle conceptuel de données localisées
[Termes IGN] modèle numérique du bâti
[Termes IGN] niveau de détail
[Termes IGN] qualité des données
[Termes IGN] rendu réaliste
[Termes IGN] texture d'image
[Termes IGN] visualisation 3D
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) The acceptance of 3D building models is critical to all urban 3D visualization projects. Building models that are identified as unacceptable can increase the cost of the project, delay the delivery, and, in some cases, cancel the acceptance of the entire project. A 3D modelling approach of using representative textures and geometry rather than actual photorealistic textures and geometry was conducted to determine whether participants who frequent the building multiple times a week over a period of a year would be able to identify the visual difference. Three focus groups were established and used to evaluate the visual quality of the 3D building models. Participants were asked to rank the visual quality of the building, as well as identifying any geometry, texture, or overall visual quality problems. The participants from the three focus groups did not identify any texture or geometry mistakes present in the building models. The overall visual quality identified by the participants from the three focus groups was above average, suggesting that the 3D modelling approach is an effective means for modelling buildings with high visitation and significance. Numéro de notice : A2014-688 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE/INFORMATIQUE Nature : Article DOI : 10.3138/carto.49.4.2522 En ligne : http://dx.doi.org/10.3138/carto.49.4.2522 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75194
in Cartographica > vol 49 n° 4 (Winter 2014) . - pp 218 - 224[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 031-2014041 RAB Revue Centre de documentation En réserve L003 Disponible CityGML implementation specifications for a countrywide 3D dataset: The case of the Netherlands / Jantien E. Stoter in Photogrammetric Engineering & Remote Sensing, PERS, vol 80 n° 11 (November 2014)
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Titre : CityGML implementation specifications for a countrywide 3D dataset: The case of the Netherlands Type de document : Article/Communication Auteurs : Jantien E. Stoter, Auteur ; M. George Vosselman, Auteur ; Christian Dahmen, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 1069 - 1077 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] CityGML
[Termes IGN] données localisées 3D
[Termes IGN] implémentation (informatique)
[Termes IGN] infrastructure nationale des données localisées
[Termes IGN] Pays-Bas
[Termes IGN] spécificationIndex. décimale : 37.00 Géomatique - information géographique - infrastructure de données Résumé : (Auteur)This paper discusses and presents the specifications of a countrywide 3D data set for The Netherlands and the best practices to generate 3D data accordingly. The specifications extend the OGC 3D standard CityGML to align it to national requirements. Although CityGML offers a solid base for 3D information modeling, we have met the problems of CityGML being a generic standard resulting in too much flexibility and in some cases ambiguity when implementing it at a national level. Based on experiences and use cases, we refined and extended the CityGML specifications into implementation specifications for our Dutch context. We present a workflow to generate 3D information compliant with specifications, starting from existing 2D/3D raw data. Also, a 3D validation tool has been developed to be able to evaluate 3D information against the defined specifications. Currently these specifications have been offered to OGC as best practices. Numéro de notice : A2014-618 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.14358/PERS.80.11.1069 En ligne : https://doi.org/10.14358/PERS.80.11.1069 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74924
in Photogrammetric Engineering & Remote Sensing, PERS > vol 80 n° 11 (November 2014) . - pp 1069 - 1077[article]Procedural modeling in 3D GIS environment / Eva Tsiliakou in International journal of 3-D information modeling, vol 3 n° 3 (July- September 2014)
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Titre : Procedural modeling in 3D GIS environment Type de document : Article/Communication Auteurs : Eva Tsiliakou, Auteur ; Tassos Labropoulos, Auteur ; Efi Dimopoulou, Auteur Année de publication : 2014 Article en page(s) : pp 17 - 34 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] architecture de système
[Termes IGN] CityEngine
[Termes IGN] CityGML
[Termes IGN] données localisées 3D
[Termes IGN] façade
[Termes IGN] modélisation 3D
[Termes IGN] procédure opérationnelle
[Termes IGN] SIG 3DRésumé : (auteur) 3D space registration and visualization has become an imperative need in order to optimally reflect all complex cases of rapid urbanization of property rights and restrictions. Besides, current technological advances as well as the availability of sophisticated software packages (proprietary or open source) call for 3D modeling especially in the GIS domain. Within this context, GIS community's present demands concerning the third dimension are discussed, while a variety of 3D modeling techniques is presented, with special emphasis on procedural modeling. Procedural modeling refers to a variety of techniques for the algorithmic generation of detailed 3D models and composite facade textures from sets of rules which are called grammars. In this paper procedural modeling is employed via CityEngine software focusing on the 3D visualization of the National Technical University of Athens (NTUA) campus' three-dimensional model, rendering a higher detail on the School of Rural and Surveying Engineering (SRSE). This algorithmic modeling concept is based on the principle that all real world buildings are defined by rules, since repetitive patterns and hierarchical components describe their geometry. The detailed geometries of the model derived from the application of CGA (Computer Generated Architecture) shape grammars on selected footprints, and the process resulted in a final 3D model, optimally describing the built environment and proved to be a good practice example of 3D visualization. Numéro de notice : A2014-692 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article DOI : 10.4018/ij3dim.2014070102 En ligne : https://doi.org/10.4018/ij3dim.2014070102 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75328
in International journal of 3-D information modeling > vol 3 n° 3 (July- September 2014) . - pp 17 - 34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 138-2014031 RAB Revue Centre de documentation En réserve L003 Disponible 3D Hilbert space filling curves in 3D city modeling for faster spatial queries / Uznir Ujang in International journal of 3-D information modeling, vol 3 n° 2 (April - June 2014)
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Titre : 3D Hilbert space filling curves in 3D city modeling for faster spatial queries Type de document : Article/Communication Auteurs : Uznir Ujang, Auteur ; François Anton, Auteur ; Suhaibah Azri, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 1 - 18 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] CityGML
[Termes IGN] courbe de Hilbert
[Termes IGN] données ouvertes
[Termes IGN] espace de Hilbert
[Termes IGN] modélisation 3D
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] requête spatiale
[Termes IGN] vitesse
[Termes IGN] XMLRésumé : (Auteur) The advantages of three dimensional (3D) city models can be seen in various applications including photogrammetry, urban and regional planning, computer games, etc. They expand the visualization and analysis capabilities of Geographic Information Systems on cities, and they can be developed using web standards. However, these 3D city models consume much more storage compared to two dimensional (2 D) spatial data. They involve extra geometrical and topological information together with semantic data. Without a proper spatial data clustering method and its corresponding spatial data access method, retrieving portions of and especially searching these 3D city models, will not be done optimally. Even though current developments are based on an open data model allotted by the Open Geospatial Consortium (OGC) called CityGML, its XML-based structure makes it challenging to cluster the 3D urban objects. In this research, the authors propose an opponent data constellation technique of space-filling curves (3D Hilbert curves) for 3D city model data representation. Unlike previous methods, that try to project 3D or n-dimensional data down to 2D or 3D using Principal Component Analysis (PCA) or Hilbert mappings, in this research, they extend the Hilbert space-filling curve to one higher dimension for 3D city model data implementations. The query performance was tested for single object, nearest neighbor and range search queries using a CityGML dataset of 1,000 building blocks and the results are presented in this paper. The advantages of implementing space-filling curves in 3D city modeling will improve data retrieval time by means of optimized 3D adjacency, nearest neighbor information and 3D indexing. The Hilbert mapping, which maps a sub-interval of the ([0,1]) interval to the corresponding portion of the d-dimensional Hilbert's curve, preserves the Lebesgue measure and is Lipschitz continuous. Depending on the applications, several alternatives are possible in order to cluster spatial data together in the third dimension compared to its clustering in 2 D. Numéro de notice : A2014-652 Affiliation des auteurs : non IGN Thématique : IMAGERIE/INFORMATIQUE Nature : Article DOI : 10.4018/ij3dim.2014040101 En ligne : http://dx.doi.org/10.4018/ij3dim.2014040101 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75102
in International journal of 3-D information modeling > vol 3 n° 2 (April - June 2014) . - pp 1 - 18[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 138-2014021 RAB Revue Centre de documentation En réserve L003 Disponible Simulation-based total energy demand estimation of buildings using semantic 3D city models / Robert Kaden in International journal of 3-D information modeling, vol 3 n° 2 (April - June 2014)PermalinkPermalinkAbstracting geographic information in a data rich world, ch. 3. Modelling geographic relationships in automated environments / Guillaume Touya (2014)PermalinkProceedings of the 9th 3D GeoInfo Conference 2014, 11-13 November 2014, Dubai / Martin Breunig (2014)PermalinkUML-based approach to developing a CityGML application domain extension / Linda Van Den Brink in Transactions in GIS, vol 17 n° 6 (December 2013)PermalinkAbleitung von 3D-Gebäudeobjekten aus 3D-Flächen und Katastergrundissen mit Hilfe von SketchUp© / Tobias Jung in ZFV, Zeitschrift für Geodäsie, Geoinformation und Landmanagement, vol 138 n° 5 (01/09/2013)PermalinkPermalinkJournée OGC 2012 / Anonyme in Géomatique expert, n° 90 (01/01/2013)Permalink3D visualization of urban data based on CityGML with WebGL / Gilles Gesquière in International journal of 3-D information modeling, vol 1 n° 3 (July - September 2012)PermalinkCityGML - Interoperable semantic 3D city models / G. Groger in ISPRS Journal of photogrammetry and remote sensing, vol 71 (July 2012)PermalinkA geometry and texture coupled flexible generalization of urban building models / M. Zhang in ISPRS Journal of photogrammetry and remote sensing, vol 70 (June 2012)PermalinkModélisation urbaine : de la représentation au projet. Interopérabilité et intégration des données et modèles urbains : standards, normes et tendances pour les SIG / Emmanuel Devys (2012)PermalinkProvably correct and complete transaction rules for updating 3D city models / G. Groger in Geoinformatica, vol 16 n° 1 (January 2012)PermalinkSpatial relations and properties for semantically enhanced 3D city models / Bénédicte Bucher (2012)PermalinkGeoprofessionals should look outside their own box / D. Haarsma in GIM international, vol 25 n° 12 (December 2011)PermalinkOnline visualization of 3D city model using CityGML and X3DOM / B. Mao in Cartographica, vol 46 n° 2 (June 2011)PermalinkTopologically consistent 3D city models obtained by extrusion / Hugo Ledoux in International journal of geographical information science IJGIS, vol 25 n° 4-5 (May 2011)PermalinkModelling and analysing 3D buildings with a primal/dual data structure / P. Boguslawski in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkModelling and analysing 3D buildings with a primal/dual data structure / P. Boguslawski in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkHow to achieve consistency for 3D city models / G. Groger in Geoinformatica, vol 15 n° 1 (January 2011)Permalink