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Titre : 3D immersive underground navigation [short paper] Type de document : Article/Communication Auteurs : Quoc-Dinh Nguyen , Auteur ; Mathieu Brédif
, Auteur ; Didier Richard
, Auteur
Editeur : Association of Geographic Information Laboratories in Europe AGILE Année de publication : 2018 Projets : 1-Pas de projet / Conférence : AGILE 2018, 21th International Conference on Geo-Information Science 12/06/2018 15/06/2018 Lund Suède Open Access Proceedings Importance : 4 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] eau usée
[Termes IGN] iTowns
[Termes IGN] Paris (75)
[Termes IGN] reconstruction 3D
[Termes IGN] rendu réaliste
[Termes IGN] réseau d'assainissement
[Termes IGN] réseau technique souterrain
[Termes IGN] visualisation 3D
[Termes IGN] vue immersive
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) In this paper, we describe a system for visualizing and exploiting 3D digital data of the Parisian sewer system (PSS). PSS presents a difficult working environment because it is subject to a certain number of risks: toxic gases and waste, biological risks such as viruses and pathogenic bacteria contained in wastewater. Certain areas of PSS are damp, unhealthy, encumbered with waste. In order to improve the working conditions of the sewers and usage of the network in the context of the research for a reduction on exposures to health and safety risks, we developed such system aiming to do the visualization and exploitation of 3D PSS data. Our system allows sewer operators to gather data, information for observation, direct inspection, indirect monitoring and reporting to assess the condition of such sewer system. Numéro de notice : C2018-018 Affiliation des auteurs : LASTIG MATIS (2012-2019) Thématique : GEOMATIQUE/IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans Date de publication en ligne : 20/06/2018 En ligne : https://agile-online.org/conference_paper/cds/agile_2018/shortpapers/51%20Short_ [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90476 Documents numériques
en open access
3D immersive underground navigation - pdfAdobe Acrobat PDFAssessing the planimetric accuracy of Paris atlases from the late 18th and 19th centuries / Bertrand Duménieu (2018)
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Titre : Assessing the planimetric accuracy of Paris atlases from the late 18th and 19th centuries Type de document : Article/Communication Auteurs : Bertrand Duménieu , Auteur ; Nathalie Abadie
, Auteur ; Julien Perret
, Auteur
Editeur : New York [Etats-Unis] : Association for computing machinery ACM Année de publication : 2018 Projets : 1-Pas de projet / Conférence : KEGeod 2018, Knowledge Extraction from Geographical Data, Technical tracks of SAC 2018 09/04/2018 13/04/2018 Pau France Open Access Proceedings, SAC 2018, 33rd Annual ACM Symposium on Applied Computing 09/04/2018 13/04/2018 Pau France Proceedings ACM Importance : pp 876 - 883 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] carte ancienne
[Termes IGN] dix-huitième siècle
[Termes IGN] dix-neuvième siècle
[Termes IGN] géoréférencement
[Termes IGN] géoréférencement indirect
[Termes IGN] Paris (75)
[Termes IGN] point d'appui
[Termes IGN] précision planimétrique
[Termes IGN] projectionRésumé : (auteur) The recent initiatives to digitize cultural heritage resources and publish them on the Web have renewed interest in historical maps for the diachronic analysis of territories in GIS applications. However, such analyses should not be done without a good understanding of the possibilities and limitations of geographical information provided by historical maps, i.e. their quality. One of the major concerns regarding historical maps quality is their positional planimetric accuracy which highly depends on survey techniques used at the time. As these techniques are not always thoroughly known and as ground truth is most of the time not sufficiently available, direct absolute evaluation approaches have been proposed to assess historical maps positional planimetric accuracy. In this article, we follow the intuition that the most widely adopted georeferencing-based approach for assessing the positional planimetric accuracy of historical maps can be adapted to provide an evaluation of the error caused by the survey process in cases like Paris atlases where the georeferencing transformation can be estimated with ground control points based on geodetic features and where the projection of the map can be approximated by a well known projected coordinate reference system. We apply this tuned approach on the Verniquet atlas and evaluate the validity of our hypothesis about projection approximation. Numéro de notice : C2018-019 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Autre URL associée : vers HAL Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1145/3167132.3167228 Date de publication en ligne : 15/04/2018 En ligne : https://doi.org/10.1145/3167132.3167228 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90481 Documents numériques
en open access
Assessing the planimetric accuracy of Paris atlases ... - postprintAdobe Acrobat PDFFirst results of ground displacement monitoring in Paris (France) with Sentinel 1 A/B time series / Matthias Jauvin (2017)
Titre : First results of ground displacement monitoring in Paris (France) with Sentinel 1 A/B time series Type de document : Article/Communication Auteurs : Matthias Jauvin, Auteur ; Yajing Yan, Auteur ; Bénédicte Fruneau , Auteur ; Emmanuel Trouvé, Auteur ; Pierre Gusmano, Auteur
Editeur : Paris : Agence Spatiale Européenne ASE / European Space Agency ESA Année de publication : 2017 Conférence : Fringe 2017, 10th International Workshop on Advances in the Science and Applications of SAR Interferometry and Sentinel-1 InSAR 05/06/2017 09/06/2017 Helsinki Finlande programme sans actes Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] image Sentinel-SAR
[Termes IGN] Paris (75)
[Termes IGN] surveillance géologiqueRésumé : (auteur) SAR differential interferometry represents an efficient tool to spatially monitor small ground deformations. During the last fifteen years, methods based on image time series, such as Persistent Scatterers technique, have shown their capabilities for monitoring finer displacements with millimeter precision. With the launch of Sentinel 1A and 1B in April 2014 and 2016, it is now possible to work with free time series of medium resolution images. The rapid revisit time (6 days) of this new constellation limits the temporal decorrelation, which makes it possible to have a high PS density, especially in urban areas. This reduction of the distance between PSs would then reduce the dispersion of the displacement measurements, so that the main source of error in deformation measurement will be due to the variation of the atmospheric composition.Major cities such as the city of Paris are experiencing constant changes that involve major construction works, both on the surface and underground. Paris for instance has started a new project called “Grand Paris”, which aims at transforming the Parisian metropolitan area with in particular major developments in transport network (subway, train and tramway). Such projects usually come with important pumping of groundwater or large excavations, whose surface impacts must be monitored with precision during and after the operations. In this context, Sentinel 1 data is a promising alternative of precedent radar satellite images, which guarantees the continuous availability of data for all applications and offers a good opportunity to develop operational monitoring applications. Even with a medium resolution, it is still possible to consider a use of this technique for monitoring displacements related to human activity (pumping of groundwater, construction of underground structures...) in urban areas. In this paper, we will present our first results obtained with a stack of Sentinel 1A and 1B images (29 images from S1-A and S1-B already processed, probably 45 for the Fringe workshop) acquired in IW mode. The PS processing is performed by using Gamma software. Some specific areas where construction works have already started are currently investigated to try to identify meaningful displacement patterns. In order to avoid limitations such as difficult PS identification and wrong interpretation of the deformation, we consider integrating PS results in processes of monitoring with others geodetic measurements (GPS, tachometry or leveling) acquired by companies specialized in high-precision topography, in order to better analyze and understand the deformations, their related processes and risks. Numéro de notice : C2017-055 Affiliation des auteurs : UPEM-LASTIG+Ext (2016-2019) Thématique : IMAGERIE Nature : Poster nature-HAL : Poster-avec-CL DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96652 Mapping experiences of personal appropriation of a new place from a diachronic perspective / Carmen Brando (2017)
Titre : Mapping experiences of personal appropriation of a new place from a diachronic perspective Type de document : Article/Communication Auteurs : Carmen Brando , Auteur ; Catherine Dominguès
, Auteur ; Laurence Jolivet
, Auteur ; Eric Mermet
, Auteur ; Sevil Seten, Auteur
Editeur : Paris : Ecole des Hautes Etudes en Sciences Sociales EHESS Année de publication : 2017 Conférence : ICC 2017, Maps and Emotions Workshop 02/07/2017 07/07/2017 Washington D.C. Etats-Unis OA Proceedings Langues : Anglais (eng) Descripteur : [Termes IGN] carte cognitive
[Termes IGN] émotion
[Termes IGN] Paris (75)
[Termes IGN] représentation mentale spatiale
[Vedettes matières IGN] CartologieRésumé : (auteur) Traditional cartography, by its methodological and cultural foundations, allows for the creation of representations shaped by standard metrical and semiological principles. Nevertheless, expressivity is often neglected and can proved to be absent from these visual representations. Alternative portrayal of topology can be provided. Hybrid representations can be also proposed to express individual perception or experience of any space. In that sense, these novel cartographic means usually labelled sensitive maps, emotional maps or cognitive maps, embody distinct points-of-view such as individual perception. Information related to perception and sentiments is inherently ambiguous, imprecise and barely quantifiable because of the nature of human experiences. Indeed, the perception of a person can be influenced by his/her physical capabilities, and his/her senses. It is thus difficult to formalize this kind of information and project it onto a map. In this context, our talk will describe an experiment with students newly arrived in Paris or its region, related to their experience of discovering their living place in a diachronic perspective. Each student is aimed to build sensitive maps representing a targeted geographical space in the way it is perceived. Similar experiments have led to non-conventional mapping productions, but without focusing on the creation process of sensitive maps over time which we intend to study. A wider perspective of this work could be the reuse of that experiment by public policies and associations in the Paris region for urban planning, tourism, reception of foreign students, or for comparing with other cities. Numéro de notice : C2017-051 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComSansActesPubliés-Unpublished DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91949 Urban soundscape maps modelled with geo-referenced data / Catherine Lavandier in Noise mapping, vol 3 n° 1 (October 2016)
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Titre : Urban soundscape maps modelled with geo-referenced data Type de document : Article/Communication Auteurs : Catherine Lavandier, Auteur ; Pierre Aumond, Auteur ; Saul Gomez , Auteur ; Catherine Dominguès
, Auteur
Année de publication : 2016 Article en page(s) : pp 278 - 294 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse comparative
[Termes IGN] bruit (audition)
[Termes IGN] cartographie du bruit
[Termes IGN] données localisées
[Termes IGN] modèle numérique
[Termes IGN] Paris (75)
[Termes IGN] perception
[Termes IGN] qualité cartographique
[Termes IGN] visualisation cartographique
[Termes IGN] zone urbaine
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) The noise maps that are currently proposed as part of the EU Directive are based on the calculation of the Lday, Levening and Lnight. These levels are calculated from emission and propagation models that are expensive in time. These noise maps are criticized for being distant from the perception of city users. Thus, calculation models of sound quality have been proposed, for being closer to city users’ perception. They are either based on perceptual variables, or on acoustic measurements, or on georeferenced data, the latter being often already integrated into the Geographic Information Systems of most French metropolises. Considering 89 Parisian situations, this article proposes to compare the sound quality really perceived, with those from models using geo-referenced data. It also looks at the modeling of perceptual variables that influence the sound quality, such as perceived loudness, the perceived time ratio of traffic, voices and birds. To do this, such geo-referenced data as road traffic, the presence of gardens, food shops, restaurants, bars, schools, markets, are transformed into core densities. Being quick and easy to calculate, these densities predict effectively sound quality in the urban public space. Visualization of urban soundscape maps are proposed in this paper. Numéro de notice : A2016--115 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1515/noise-2016-0020 Date de publication en ligne : 28/10/2016 En ligne : https://doi.org/10.1515/noise-2016-0020 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84758
in Noise mapping > vol 3 n° 1 (October 2016) . - pp 278 - 294[article]Documents numériques
en open access
A2016--115_Urban_soundscape_maps_modelled_withgeo-referenced_data.pdfAdobe Acrobat PDFLes temps de transport pour délimiter des aires urbaines fonctionnelles ? Une investigation critique à partir de trois métropoles européennes / Marianne Guérois in Belgeo, vol 2016 n° 2 (2016-2)
PermalinkDigital surface model generation over urban areas using high resolution satellite SAR imagery : tomographic techniques and their application to 3-Dchange monitoring / Martina Porfiri (2016)
PermalinkEuropean handbook of crowdsourced geographic information, ch. 8. Quality analysis of the Parisian OSM toponyms evolution / Vyron Antoniou (2016)
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PermalinkLe Grand Paris écologique, endroit très beau : reconnaissance des noms de lieu dans des corpus thématiques français, présenté lors de l'atelier EXtraction de Connaissances à partir de donnEes Spatialisées de SAGEO 2016 / Carmen Brando (2016)
PermalinkQualification des données Stéréopolis et étude d'un algorithme de détection d'objets / Guillaume Curtet (2016)
PermalinkRéalisation d'études et travaux topographiques sur des biens fonciers et immobiliers parisiens / Robin Bordereau (2016)
PermalinkPermalinkStreetgen: in-base procedural-based road generation / Rémi Cura in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, vol II-3 W5 (October 2015)
PermalinkAn aggregated graph to qualify historical spatial networks using temporal patterns detection / Benoit Costes (2015)
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PermalinkLe plan de Turgot : généalogie d'une carte unique de Paris / Jean-Yves Sarazin in Carto, le monde en cartes, n° 27 (janvier - fevrier 2015)
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