Descripteur
Termes IGN > informatique > modélisation 3D > modèle 3D de l'espace urbain
modèle 3D de l'espace urbain |
Documents disponibles dans cette catégorie (256)
![](./images/expand_all.gif)
![](./images/collapse_all.gif)
![Tris disponibles](./images/orderby_az.gif)
Etendre la recherche sur niveau(x) vers le bas
3D modelling with national coverage: Bridging the gap between research and practice / Jantien E. Stoter (2015)
![]()
Titre : 3D modelling with national coverage: Bridging the gap between research and practice Type de document : Article/Communication Auteurs : Jantien E. Stoter, Auteur ; Carsten Roensdorf, Auteur ; Rollo Home, Auteur ; Dave Capstick, Auteur ; André Streilein, Auteur ; Tobias Kellenberger, Auteur ; Eric Bayers, Auteur ; Paul Kane, Auteur ; Josef Dorsch, Auteur ; Piotr Wozniak, Auteur ; Gunnar Lysell, Auteur ; Thomas Lithen, Auteur ; Bénédicte Bucher , Auteur ; Nicolas Paparoditis
, Auteur ; Risto Ilves, Auteur
Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2015 Collection : Lecture notes in Geoinformation and Cartography, ISSN 1863-2246 Conférence : 3D GeoInfo 2014, 9th international conference 11/11/2014 13/11/2014 Dubaï Emirats arabes unis Proceedings Springer Importance : pp 207 - 225 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] état de l'art
[Termes IGN] mise à jour
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modèle numérique du bâti
[Termes IGN] organisme cartographique national
[Termes IGN] reconstruction 3DRésumé : (auteur) 3D technologies are becoming mature and more and more organisations are investing in 3D models for their areas. For National Mapping and Cadastral Agencies (NMCAs), that have a long history in collating and maintaining countrywide 2D-datasets, the major challenge is how to best adopt a 2D base into 3D environment with an established process of continuous incremental update, and making best use of available resources. To identify best and common practices, as well as remaining research challenges, since 2013 ten NMCAs work together in the European Spatial Data Research (EuroSDR) 3D Special Interest Group. This paper reports about an inventory that has been made on the state-of-the art of 3D products and plans that these NMCAs have as well as the challenges they face. The 3D modelling of buildings is explored in more detail, since buildings are prominent features in 3D city and landscape models. In addition, together with road objects (traffic infrastructure), building objects change often and therefore these require efficient update processes. Numéro de notice : C2014-036 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Autre URL associée : vers HAL-version auteur Thématique : GEOMATIQUE/IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-319-12181-9_13 En ligne : http://dx.doi.org/10.1007/978-3-319-12181-9_13 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83151
Titre : ISPRS Geospatial Week 2015 : Proceedings Type de document : Actes de congrès Auteurs : Clément Mallet , Éditeur scientifique ; Nicolas Paparoditis
, Éditeur scientifique ; Ian J. Dowman, Éditeur scientifique ; Sander J. Oude Elberink, Éditeur scientifique ; Ana-Maria Raimond
, Éditeur scientifique ; George Sithole, Éditeur scientifique ; G. Rabatel, Éditeur scientifique ; Franz Rottensteiner, Éditeur scientifique ; Xavier Briottet
, Éditeur scientifique ; Sidonie Christophe
, Éditeur scientifique ; Arzu Çöltekin, Éditeur scientifique ; G. Patanè, Éditeur scientifique
Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2015 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 40-3/W3 Conférence : ISPRS 2015, Geospatial Week : Laserscanning, ISSDQ, CMRT, ISA, GeoVIS, GeoBigData 28/09/2015 03/10/2015 La Grande Motte France ISPRS OA Archives Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse spatiale
[Termes IGN] cartographie d'urgence
[Termes IGN] données localisées
[Termes IGN] données massives
[Termes IGN] drone
[Termes IGN] géovisualisation
[Termes IGN] image hyperspectrale
[Termes IGN] lasergrammétrie
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] qualité des donnéesNote de contenu : - Laserscanning [Traitement de données lidar]
- ISSDQ, International Symposium on Spatial Data Quality [Qualité des données géospatiales]
- CMRT, City Models, Roads and Traffics [Modèles de villes, de routes et de trafic]
- Gi4DM, Geoinformation for Disaster management [Cartographie d'urgence]
- GeoUAV, civil Unmanned Aerial Vehicles for geospatial data acquisition [Drônes civils pour l'acquisition de données géospatiales]
- GeoHyper, Geospatial Hyperspectral [Acquisition et traitement de données hyperspectrales]
- GeoVIS, Geospatial data Visualization [Visualisation de données géospatiales hétérogènes]
- GeoBigData, [Management, traitement et visualisation de données géospatiales massives]
- Geospatial Analysis [Analyse géospatiale]Numéro de notice : 17115 Affiliation des auteurs : LASTIG MATIS+Ext (2012-2019) Thématique : IMAGERIE Nature : Actes nature-HAL : DirectOuvrColl/Actes DOI : sans Date de publication en ligne : 19/10/2015 En ligne : http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-3-W3/index.htm [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79912 Contient
- Distributed dimensonality-based rendering of lidar point clouds / Mathieu Brédif (2015)
- 3D octree based watertight mesh generation from ubiquitous data / Laurent Caraffa (2015)
- Homogeneous geovisualization of coastal areas from heterogeneous spatio-temporal data / Antoine Masse (2015)
- Extraction of optimal spectral bands using hierarchical band merging out of hyperspectral data / Arnaud Le Bris (2015)
- UAV linear photogrammetry / Vincent Tournadre (2015)
- Generalisation and data quality / Nicolas Regnauld (2015)
- UAV onboard photogrammetry and GPS positioning for earthworks / Mehdi Daakir (2015)
- Coastal digital surface model on low contrast images / Ana-Maria Rosu (2015)
An assisting, constrained 3D navigation technique for multiscale virtual 3D city models / Dieter Hildebrandt in Geoinformatica, vol 18 n° 3 (July 2014)
![]()
[article]
Titre : An assisting, constrained 3D navigation technique for multiscale virtual 3D city models Type de document : Article/Communication Auteurs : Dieter Hildebrandt, Auteur ; Robert Timm, Auteur Année de publication : 2014 Article en page(s) : pp 537 -567 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] analyse multiéchelle
[Termes IGN] calcul d'itinéraire
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] navigation automobile
[Termes IGN] système de positionnement par satellitesRésumé : (Auteur) Virtual 3D city models serve as integration platforms for complex geospatial and georeferenced information and as medium for effective communication of spatial information. In order to explore these information spaces, navigation techniques for controlling the virtual camera are required to facilitate wayfinding and movement. However, navigation is not a trivial task and many available navigation techniques do not support users effectively and efficiently with their respective skills and tasks. In this article, we present an assisting, constrained navigation technique for multiscale virtual 3D city models that is based on three basic principles: users point to navigate, users are lead by suggestions, and the exploitation of semantic, multiscale, hierarchical structurings of city models. The technique particularly supports users with low navigation and virtual camera control skills but is also valuable for experienced users. It supports exploration, search, inspection, and presentation tasks, is easy to learn and use, supports orientation, is efficient, and yields effective view properties. In particular, the technique is suitable for interactive kiosks and mobile devices with a touch display and low computing resources and for use in mobile situations where users only have restricted resources for operating the application. We demonstrate the validity of the proposed navigation technique by presenting an implementation and evaluation results. The implementation is based on service-oriented architectures, standards, and image-based representations and allows exploring massive virtual 3D city models particularly on mobile devices with limited computing resources. Results of a user study comparing the proposed navigation technique with standard techniques suggest that the proposed technique provides the targeted properties, and that it is more advantageous to novice than to expert users. Numéro de notice : A2014-500 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1007/s10707-013-0189-8 Date de publication en ligne : 07/09/2013 En ligne : https://doi.org/10.1007/s10707-013-0189-8 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74092
in Geoinformatica > vol 18 n° 3 (July 2014) . - pp 537 -567[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-2014031 RAB Revue Centre de documentation En réserve L003 Disponible Scalable multi-platform distribution of spatial 3D contents / Jan Klimke in International journal of 3-D information modeling, vol 3 n° 3 (July- September 2014)
![]()
[article]
Titre : Scalable multi-platform distribution of spatial 3D contents Type de document : Article/Communication Auteurs : Jan Klimke, Auteur ; Benjamin Hagedorn, Auteur ; Jürgen Döllner, Auteur Année de publication : 2014 Article en page(s) : pp 35 - 49 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] dalle
[Termes IGN] données localisées 3D
[Termes IGN] mise à l'échelle
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] moteur de réalité virtuelle
[Termes IGN] PlaGe (plateforme de généralisation)
[Termes IGN] rendu réaliste
[Termes IGN] téléphonie mobile
[Termes IGN] visualisation 3DRésumé : (auteur) Virtual 3D city models provide powerful user interfaces for communication of 2D and 3D geoinformation. Providing high quality visualization of massive 3D geoinformation in a scalable, fast, and cost efficient manner is still a challenging task. Especially for mobile and web-based system environments, software and hardware configurations of target systems differ significantly. This makes it hard to provide fast, visually appealing renderings of 3D data throughout a variety of platforms and devices. Current mobile or web-based solutions for 3D visualization usually require raw 3D scene data such as triangle meshes together with textures delivered from server to client, what makes them strongly limited in terms of size and complexity of the models they can handle.
This paper introduces a new approach for provisioning of massive, virtual 3D city models on different platforms namely web browsers, smartphones or tablets, by means of an interactive map assembled from artificial oblique image tiles. The key concept is to synthesize such images of a virtual 3D city model by a 3D rendering service in a preprocessing step. This service encapsulates model handling and 3D rendering techniques for high quality visualization of massive 3D models. By generating image tiles using this service, the 3D rendering process is shifted from the client side, which provides major advantages: (a) The complexity of the 3D city model data is decoupled from data transfer complexity (b) the implementation of client applications is simplified significantly as 3D rendering is encapsulated on server side (c) 3D city models can be easily deployed for and used by a large number of concurrent users, leading to a high degree of scalability of the overall approach. All core 3D rendering techniques are performed on a dedicated 3D rendering server, and thin-client applications can be compactly implemented for various devices and platforms.Numéro de notice : A2014-693 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article DOI : 10.4018/ij3dim.2014070103 En ligne : https://doi.org/10.4018/ij3dim.2014070103 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75329
in International journal of 3-D information modeling > vol 3 n° 3 (July- September 2014) . - pp 35 - 49[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 138-2014031 RAB Revue Centre de documentation En réserve L003 Disponible Towards a 3D spatial urban energy modelling approach / Jean-Marie Bahu in International journal of 3-D information modeling, vol 3 n° 3 (July- September 2014)
![]()
[article]
Titre : Towards a 3D spatial urban energy modelling approach Type de document : Article/Communication Auteurs : Jean-Marie Bahu, Auteur ; Andreas Koch, Auteur ; Enrique Kremers, Auteur ; Syed Monjur Murshed, Auteur Année de publication : 2014 Article en page(s) : pp 1 - 16 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] analyse des besoins
[Termes IGN] chaleur
[Termes IGN] données localisées 3D
[Termes IGN] énergie
[Termes IGN] fuite thermique
[Termes IGN] milieu urbain
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modèle orienté agentRésumé : (auteur) Today's needs to reduce the environmental impact of energy use impose dramatic changes for energy infrastructure and existing demand patterns (e.g. buildings) corresponding to their specific context. In addition, future energy systems are expected to integrate a considerable share of fluctuating power sources and equally a high share of distributed generation of electricity. Energy system models capable of describing such future systems and allowing the simulation of the impact of these developments thus require a spatial representation in order to reflect the local context and the boundary conditions. This paper describes two recent research approaches developed at EIFER in the fields of (a) geo-localised simulation of heat energy demand in cities based on 3D morphological data and (b) spatially explicit Agent-Based Models (ABM) for the simulation of smart grids. 3D city models were used to assess solar potential and heat energy demand of residential buildings which enable cities to target the building refurbishment potentials. Distributed energy systems require innovative modelling techniques where individual components are represented and can interact. With this approach, several smart grid demonstrators were simulated, where heterogeneous models are spatially represented. Coupling 3D geodata with energy system ABMs holds different advantages for both approaches. On one hand, energy system models can be enhanced with high resolution data from 3D city models and their semantic relations. Furthermore, they allow for spatial analysis and visualisation of the results, with emphasis on spatially and structurally correlations among the different layers (e.g. infrastructure, buildings, administrative zones) to provide an integrated approach. On the other hand, 3D models can benefit from more detailed system description of energy infrastructure, representing dynamic phenomena and high resolution models for energy use at component level. The proposed modelling strategies conceptually and practically integrate urban spatial and energy planning approaches. The combined modelling approach that will be developed based on the described sectorial models holds the potential to represent hybrid energy systems coupling distributed generation of electricity with thermal conversion systems. Numéro de notice : A2014-691 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.4018/ij3dim.2014070101 En ligne : https://doi.org/10.4018/ij3dim.2014070101 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75327
in International journal of 3-D information modeling > vol 3 n° 3 (July- September 2014) . - pp 1 - 16[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 138-2014031 RAB Revue Centre de documentation En réserve L003 Disponible PermalinkPermalinkAnalyse sémantique de nuages de points 3D dans le milieu urbain : sol, façades, objets urbains et accessibilité / Andres Felipe Serna Morales (2014)
PermalinkPermalinkPermalinkProceedings of the 9th 3D GeoInfo Conference 2014, 11-13 November 2014, Dubai / Martin Breunig (2014)
![]()
PermalinkReconstruction de modèles 3D photoréalistes de façades à partir de données image et laser terrestre / Jérôme Demantké (2014)
PermalinkImage-based rendering of LOD1 3D city models for traffic-augmented immersive street-view navigation / Mathieu Brédif in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, vol II-3 W3 (November 2013)
PermalinkGeometric structure simplification of 3D building models / Qingquan Li in ISPRS Journal of photogrammetry and remote sensing, vol 84 (October 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)
Permalink