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An algorithm for on-the-fly K shortest paths finding in multi-storey buildings using a hierarchical topology model / Rosen Ivanov in International journal of geographical information science IJGIS, vol 32 n° 11-12 (November - December 2018)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 32 n° 11-12 (November - December 2018) . - pp 2362 - 2385 Titre : An algorithm for on-the-fly K shortest paths finding in multi-storey buildings using a hierarchical topology model Type de document : Article/Communication Auteurs : Rosen Ivanov, Auteur Année de publication : 2018 Article en page(s) : pp 2362 - 2385 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement [Termes IGN] bati [Termes IGN] calcul d'itinéraire [Termes IGN] cartographie à la volée [Termes IGN] chemin le plus court, algorithme du [Termes IGN] connexité (graphes) [Termes IGN] connexité (topologie) [Termes IGN] modèle topologique de données [Termes IGN] modélisation 3D du bâti BIM [Termes IGN] positionnement en intérieur Résumé : (Auteur) This article presents an approach to computing K shortest paths in large buildings with complex horizontal and vertical connectivity. The building topology is obtained from Building Information Model (BIM) and implemented using directed multigraphs. Hierarchical design allows the calculation of feasible paths without the need to load into memory the topology of the entire building. It is possible to expand the graph with new connectivity on-the-fly. The paths calculated may be composed of traversable building components that are located inside the buildings or those that are both inside and outside buildings. The performance (computational time and heap size used) is optimized by using the appropriate collections (maps, lists and sets). The proposed algorithm is evaluated in several use-case scenarios – complete graphs and real building environments. In all test scenarios, the proposed path finding algorithm is faster and uses less memory when compared to the fast version of the Yen’s KSP algorithm. The proposed approach can be successfully used as a first level of coarse-to-fine path finding algorithms. Numéro de notice : A2018-525 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2018.1510126 Date de publication en ligne : 24/08/2018 En ligne : https://doi.org/10.1080/13658816.2018.1510126 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91352 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-2018061	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Developing a wind turbine planning platform: Integration of “sound propagation model–GIS-game engine” triplet / Azarakhsh Rafiee in Environmental Modelling & Software, vol 95 (September 2017)  

Public [article]  inEnvironmental Modelling & Software > vol 95 (September 2017) . - pp 326 - 343 Titre : Developing a wind turbine planning platform: Integration of “sound propagation model–GIS-game engine” triplet Type de document : Article/Communication Auteurs : Azarakhsh Rafiee, Auteur ; Pim Van der Male, Auteur ; Eduardo Dias, Auteur ; Henk J. Scholten, Auteur Année de publication : 2017 Article en page(s) : pp 326 - 343 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] bruit (audition) [Termes IGN] cartographie à la volée [Termes IGN] données localisées 3D [Termes IGN] éolienne [Termes IGN] impact sur l'environnement [Termes IGN] monde virtuel [Termes IGN] moteur de jeu [Termes IGN] propagation du son [Termes IGN] simulation 3D [Termes IGN] standard OGC [Termes IGN] système d'information géographique [Termes IGN] temps réel [Vedettes matières IGN] Géovisualisation Résumé : (auteur) In this study, we propose an interactive information system for wind turbine siting, considering its visual and sound externalities. This system is an integration of game engine, GIS and analytical sound propagation model in a unified 3D web environment. The game engine–GIS integration provides a 3D virtual environment where users can navigate through the existing geospatial data of the whole country and place different wind turbine types to explore their visual impact on the landscape. The integration of a sound propagation model in the game engine–GIS supports the real-time calculation and feedback regarding wind turbine sound at the surrounding buildings. The platform's GIS component enables massive (on-the-fly) georeferenced data utilization through tiling techniques as well as data accessibility and interoperability via cloud-based architecture and open geospatial standard protocols. The game engine, on the other hand, supports performance optimization for both data display and sound model calculations. Numéro de notice : A2017-351 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1016/j.envsoft.2017.06.019 En ligne : https://doi.org/10.1016/j.envsoft.2017.06.019 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85706 [article]

Design principles of a stream-based framework for mobility analysis / Loic Salmon in Geoinformatica, vol 21 n° 2 (April - June 2017)  

Public [article]  inGeoinformatica > vol 21 n° 2 (April - June 2017) . - pp 237 - 261 Titre : Design principles of a stream-based framework for mobility analysis Type de document : Article/Communication Auteurs : Loic Salmon, Auteur ; Cyril Ray, Auteur Année de publication : 2017 Article en page(s) : pp 237 - 261 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse spatiale [Termes IGN] approche holistique [Termes IGN] cartographie à la volée [Termes IGN] flux de données [Termes IGN] gestion de trafic [Termes IGN] navigation maritime [Termes IGN] objet mobile [Termes IGN] positionnement cinématique en temps réel [Termes IGN] système de gestion de flux de données [Termes IGN] temps réel [Termes IGN] traitement interactif [Vedettes matières IGN] Géovisualisation Résumé : (Auteur) Trajectory analysis is of crucial importance in several fields as social analysis, zoology, climatology or traffic monitoring. Over the last decade, the number of mobile systems and devices recording their positions has grown significantly generating a deluge of spatial and temporal data to analyze. This increasing volume of data raises numerous issues in terms of storage, processing and extraction of information. Previous works considering movement analysis have been mainly oriented towards either archived data processing and mining or continuous handling of incoming streams. The research developed in this paper introduces the design principles of a holistic approach combining real-time processing and archived data analysis to process mobility data “on the fly”. This solution aims to provide better results comparing to both purely offline and online approaches. This research considers distributed data and processing to be more efficient. The design principles are applied to maritime traffic analysis and a few representative examples are introduced to demonstrate the relevance of our approach. Numéro de notice : A2017-070 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-016-0256-z En ligne : http://dx.doi.org/10.1007/s10707-016-0256-z Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84297 [article]

3D web services for visualization and data sharing in 3D cadastre / Ali Zare Zardiny in International journal of 3-D information modeling, vol 4 n° 4 (October - December 2015)  

Public [article]  inInternational journal of 3-D information modeling > vol 4 n° 4 (October - December 2015) . - pp 1 - 15 Titre : 3D web services for visualization and data sharing in 3D cadastre Type de document : Article/Communication Auteurs : Ali Zare Zardiny, Auteur ; Farshad Hakimpour, Auteur Année de publication : 2015 Article en page(s) : pp 1 - 15 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cadastre étranger [Termes IGN] cadastre 3D [Termes IGN] cartographie à la volée [Termes IGN] CityGML [Termes IGN] données localisées 3D [Termes IGN] droit foncier [Termes IGN] géovisualisation [Termes IGN] information sémantique [Termes IGN] interopérabilité [Termes IGN] Iran [Termes IGN] partage de données localisées [Termes IGN] service web géographique [Termes IGN] Web Feature Service [Termes IGN] Web Map Tile Service [Termes IGN] Web View Service Résumé : (Auteur) Land has an essential role in any society, either as one of the most important capitals of mankind or as a place for people's life and activities. Therefore, registration of ownership and land use rights in a formal system is a major issue. In different countries, Cadastre systems can register extent, rights, restrictions and responsibilities related to land parcels. Many organizations such as municipality, tax and banks need to this information for planning and decision making. Considering the needs for land information by different organizations, access to cadastre data gains a lot of importance. Despite this importance, access to cadastre information encounter with different challenges such as differences in platforms or data structures and access to semantic and geometric data. The main goal of this research is to overcome these challenges and to improve the interoperability in sharing and accessing 3D cadastre data and challenges. This paper investigates capabilities of current 3D Spatial Web Services: WFS, WVS, WTS and W3DS as well as advantages of using these 3D services for access to 3D cadastre data. The authors also combined the legal classes of LADM with geometrical classes of CityGML for transferring the semantic and geometric cadastre data. Finally, some prospects of using 3D Web Services will be illustrated through implementation the scenarios. The most important advantages of using 3D Spatial Web Services in cadastre are on the fly construction and on demand presentation of 3D cadastral model, facilitating of access to legal and descriptive cadastre information, no necessity to user's awareness of data structure in cadastre database and compatibility with different levels of users. Numéro de notice : A2016-428 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.4018/IJ3DIM.2015100101 En ligne : http://doi.org/10.4018/ij3dim.2015100101 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81322 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
138-2015041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Web services for dynamic coloring of UAVSAR images / Jun Wang in Pure and applied geophysics, vol 172 n° 8 (August 2015)  

Public [article]  inPure and applied geophysics > vol 172 n° 8 (August 2015) . - pp 2325 - 2332 Titre : Web services for dynamic coloring of UAVSAR images Type de document : Article/Communication Auteurs : Jun Wang, Auteur ; Marlon Pierce, Auteur ; Andrea Donnellan, Auteur ; Jay Parker, Auteur Année de publication : 2015 Article en page(s) : pp 2325 - 2332 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] carte thématique [Termes IGN] cartographie à la volée [Termes IGN] couleur à l'écran [Termes IGN] déformation de la croute terrestre [Termes IGN] drone [Termes IGN] image radar moirée [Termes IGN] interface web [Termes IGN] polarimétrie radar [Termes IGN] séisme [Termes IGN] service web géographique Résumé : (auteur) QuakeSim has implemented a service-based Geographic Information System to enable users to access large amounts of Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) data through an online interface. The QuakeSim Interferometric Synthetic Aperture Radar (InSAR) profile tool calculates radar-observed displacement (from an unwrapped interferogram product) along user-specified lines. Pre-rendered thumbnails with InSAR fringe patterns are used to display interferogram and unwrapped phase images on a Google Map in the InSAR profile tool. One challenge with this tool lies in the user visually identifying regions of interest when drawing the profile line. This requires that the user correctly interpret the InSAR imagery, which currently uses fringe patterns. The mapping between pixel color and pixel value is not a one-to-one relationship from the InSAR fringe pattern, and it causes difficulty in understanding general displacement information for QuakeSim users. The goal of this work is to generate color maps that directly reflect the pixel values (displacement) as an addition to the pre-rendered images. Because of an extremely uneven distribution of pixel values on an InSAR image, a histogram-based, nonlinear color template generation algorithm is currently under development. A web service enables on-the-fly coloring of UAVSAR images with dynamically generated color templates. Numéro de notice : A2015-493 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article DOI : 10.1007/s00024-014-0941-5 Date de publication en ligne : 26/10/2014 En ligne : https://doi.org/10.1007/s00024-014-0941-5 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=77288 [article]

Dynamic styling for thematic mapping / Simon Moncrieff (2015) 

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Geospatial collaboration in the cloud / Patrick Collins in GEO: Geoconnexion international, vol 13 n° 7 (July 2014)

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A comparison between WCS and OPeNDAP for making model results and data products available through the Internet / F. Baart in Transactions in GIS, vol 16 n° 2 (April 2012)  

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Manuel de cartographie rapide / B. Lortic (2011)

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One click, one day, one map / H. Foch in GIM international, vol 23 n° 6 (June 2009)

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Mobile mapping and autonomous vehicle navigation / Charles K. Toth in Revue Française de Photogrammétrie et de Télédétection, n° 185 (Mars 2007)  

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