Descripteur
Documents disponibles dans cette catégorie (192)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Kinetic depth images: flexible generation of depth perception / Sujal Bista in The Visual Computer, vol 33 n° 10 (October 2017)
[article]
Titre : Kinetic depth images: flexible generation of depth perception Type de document : Article/Communication Auteurs : Sujal Bista, Auteur ; Ícaro Lins Leitão da Cunha, Auteur ; Amitabh Varshney, Auteur Année de publication : 2017 Article en page(s) : pp 1357 - 1369 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] effet de profondeur cinétique
[Termes IGN] perception
[Termes IGN] profondeur
[Termes IGN] scène
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) In this paper we present a systematic approach to create smoothly varying images from a pair of photographs to facilitate enhanced awareness of the depth structure of a given scene. Since our system does not rely on sophisticated display technologies such as stereoscopy or auto-stereoscopy for depth awareness, it (a) is inexpensive and widely accessible, (b) does not suffer from vergence - accommodation fatigue, and (c) works entirely with monocular depth cues. Our approach enhances the depth awareness by optimizing across a number of features such as depth perception, optical flow, saliency, centrality, and disocclusion artifacts. We report the results of user studies that examine the relationship between depth perception, relative velocity, spatial perspective effects, and the positioning of the pivot point and use them when generating kinetic-depth images. We also present a novel depth re-mapping method guided by perceptual relationships based on the results of our user study. We validate our system by presenting a user study that compares the output quality of our proposed method against other existing alternatives on a wide range of images. Numéro de notice : A2017-711 Affiliation des auteurs : non IGN Thématique : IMAGERIE/INFORMATIQUE Nature : Article DOI : 10.1007/s00371-016-1231-2 En ligne : https://doi.org/10.1007/s00371-016-1231-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=88092
in The Visual Computer > vol 33 n° 10 (October 2017) . - pp 1357 - 1369[article]The confirmed realities and myths about the benefits and costs of 3D Visualization and virtual reality in discrete event modeling and simulation: A descriptive meta-analysis of evidence from research and practice / Ikpe Justice Akpan in Computers & Industrial Engineering, vol 112 (October 2017)
[article]
Titre : The confirmed realities and myths about the benefits and costs of 3D Visualization and virtual reality in discrete event modeling and simulation: A descriptive meta-analysis of evidence from research and practice Type de document : Article/Communication Auteurs : Ikpe Justice Akpan, Auteur ; Murali Shanker, Auteur Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse coût-avantage
[Termes IGN] interface utilisateur
[Termes IGN] quantité discrète
[Termes IGN] réalité virtuelle
[Termes IGN] simulation 3D
[Termes IGN] visualisation 3D
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) The past seventeen years has witnessed a significant transformation in discrete event modeling and simulation, and the introduction of new modeling methodology based on three-dimensional (3D) visualization and virtual reality (VR) technologies. While several studies demonstrate the benefits and costs of 3D and VR modeling in discrete event simulation (DES) based on empirical evidence, others rely on anecdotal evidence and experience from practice. Further, there are still some unsubstantiated claims about the gains and challenges arising from the application of 3D and VR technologies in DES. This paper synthesizes the realized benefits and costs associated with modeling and simulation in 3D and VR while differentiating the realities from claims (myths). The results show that 3D and VR techniques offer significant benefits in the major modeling and simulation tasks than speculated among practitioners in the simulation community. Numéro de notice : A2017-409 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1016/j.cie.2017.08.020 En ligne : https://doi.org/10.1016/j.cie.2017.08.020 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86293
in Computers & Industrial Engineering > vol 112 (October 2017)[article]Visibility widgets for unveiling occluded data in 3D terrain visualization / Martin Röhlig in Journal of Visual Languages and Computing, vol 42 (October 2017)
[article]
Titre : Visibility widgets for unveiling occluded data in 3D terrain visualization Type de document : Article/Communication Auteurs : Martin Röhlig, Auteur ; Martin Luboschik, Auteur ; Heidrun Schumann, Auteur Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] champ visuel
[Termes IGN] image panoramique
[Termes IGN] modèle numérique de terrain
[Termes IGN] visibilité
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) In 3D visualization of terrain, occlusion has detrimental impact on discovering, accessing, and spatially relating embedded data. This can lead to significant loss of information. To address this issue, we introduce visibility widgets: compact auxiliary views that visualize occluded data, their locations, and related properties, and thus support users in revealing hidden information. The widgets comprise different occlusion management strategies for detecting and analyzing invisible data inside as well as outside of the field of view. In addition, each widget is designed complementary and transient to facilitate interactive exploration and navigation while not monopolizing the user’s attention. We demonstrate the application of visibility widgets focusing the visual exploration of weather data in 3D terrain. Numéro de notice : A2017-561 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1016/j.jvlc.2017.08.008 En ligne : https://doi.org/10.1016/j.jvlc.2017.08.008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86641
in Journal of Visual Languages and Computing > vol 42 (October 2017)[article]BinSq : visualizing geographic dot density patterns with gridded maps / Alvin Chua in Cartography and Geographic Information Science, Vol 44 n° 5 (September 2017)
[article]
Titre : BinSq : visualizing geographic dot density patterns with gridded maps Type de document : Article/Communication Auteurs : Alvin Chua, Auteur ; Andrew Vande Moere, Auteur Année de publication : 2017 Article en page(s) : pp 390 - 409 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] carte de répartition par points
[Termes IGN] déplacement d'objet géographique
[Termes IGN] données localisées
[Termes IGN] généralisation cartographique
[Termes IGN] grille
[Termes IGN] visualisation de données
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) Dot maps have become a popular way to visualize discrete geographic data. Yet, beyond showing how the data are spatially distributed, dot maps are often visually cluttered in terms of consistency, overlap, and representativeness. Existing clutter reduction techniques like jittering, refinement, distortion, and aggregation also address this issue, but do so by arbitrarily displacing dots from their exact location, removing dots from the map, changing the spatial reference of the map, or reducing its level of detail, respectively. We present BinSq, a novel visualization technique to compare variations in dot density patterns without visual clutter. Based on a careful synthesis of existing clutter reduction techniques, BinSq reduces the wide variety of dot density variations on the map to a representative subset of density intervals that are more distinguishable. The subset is derived from a nested binning operation that introduces order and regularity to the map. Thereafter, a dot prioritization operation improves the representativeness of the map by equalizing visible data values to correspond with the actual data. In this paper, we describe the algorithmic implementation of BinSq, explore its parametric design space, and discuss its capabilities in comparison to six existing clutter reduction techniques for dot maps. Numéro de notice : A2017-448 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2016.1174623 En ligne : http://dx.doi.org/10.1080/15230406.2016.1174623 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86357
in Cartography and Geographic Information Science > Vol 44 n° 5 (September 2017) . - pp 390 - 409[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 032-2017051 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)
[article]
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] GéovisualisationRésumé : (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
in Environmental Modelling & Software > vol 95 (September 2017) . - pp 326 - 343[article]Enseignements du test utilisateur d'une géovisualisation dynamique : des améliorations possibles pour les expériences en cartographie / Cécile Saint-Marc in Cartes & Géomatique, n° 233 (septembre - novembre 2017)PermalinkLa géovisualisation, outil d'analyse pour le renseignement géospatial / Vincent Caillard in Cartes & Géomatique, n° 233 (septembre - novembre 2017)PermalinkInsight provenance for spatiotemporal visual analytics : Theory, review, and guidelines / Andreas Hall in Journal of Spatial Information Science (JoSIS), n° 15 (September 2017)PermalinkOptimization of simulation and visualization analysis of dam-failure flood disaster for diverse computing systems / Mingwei Liu in International journal of geographical information science IJGIS, vol 31 n° 9-10 (September - October 2017)PermalinkVisual analytics of time-varying multivariate ionospheric scintillation data / Aurea Soriano-Vargas in Computers and graphics, vol 68 (November 2017)PermalinkAnimated chorem-based summaries of geographic data streams from sensors in real time / Zina Bouattou in Journal of Visual Languages and Computing, vol 41 (August 2017)PermalinkSpatial History, deep mapping and digital storytelling: archaeology's future imagined through an engagement with the Digital Humanities / Tiffany Earley-Spadoni in Journal of archaeological science, vol 84 (August 2017)PermalinkA viewpoint based approach to the visual exploration of trajectory / Jie Li in Journal of Visual Languages and Computing, vol 41 (August 2017)PermalinkConstrained Palette-Space Exploration / Nicolas Mellado in ACM Transactions on Graphics, TOG, Vol 36 n° 4 (July 2017)PermalinkControllability matters : The user experience of adaptive maps / Peter Kiefer in Geoinformatica, vol 21 n° 3 (July - September 2017)Permalink