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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]Insight provenance for spatiotemporal visual analytics : Theory, review, and guidelines / Andreas Hall in Journal of Spatial Information Science (JoSIS), n° 15 (September 2017)
[article]
Titre : Insight provenance for spatiotemporal visual analytics : Theory, review, and guidelines Type de document : Article/Communication Auteurs : Andreas Hall, Auteur ; Paula Ahonen-Rainio, Auteur ; Kirsi Virrantaus, Auteur Année de publication : 2017 Article en page(s) : pp 65 - 88 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse géovisuelle
[Termes IGN] cadre conceptuel
[Termes IGN] données spatiotemporelles
[Termes IGN] orientations
[Termes IGN] raisonnement spatial
[Termes IGN] représentation mentale spatiale
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) Research on provenance, which focuses on different ways to describe and record the history of changes and advances made throughout an analysis process, is an integral part of visual analytics. This paper focuses on providing the provenance of insight and rationale through visualizations while emphasizing, first, that this entails a profound understanding of human cognition and reasoning and that, second, the special nature of spatiotemporal data needs to be acknowledged in this process. A recently proposed human reasoning framework for spatiotemporal analysis, and four guidelines for the creation of visualizations that provide the provenance of insight and rationale published in relation to that framework, work as a starting point for this paper. While these guidelines are quite abstract, this paper set out to create a set of more concrete guidelines. On the basis of a review of available provenance solutions, this paper identifies a set of key features that are of relevance when providing the provenance of insight and rationale and, on the basis of these features, produces a new set of complementary guidelines that are more practically oriented than the original ones. Together, these two sets of guidelines provide both a theoretical and practical approach to the problem of providing the provenance of insight and rationale. Providing these kinds of guidelines represents a new approach in provenance research. Numéro de notice : A2017-822 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5311/JOSIS.2017.15.337 En ligne : https://doi.org/10.5311/JOSIS.2017.15.337 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89307
in Journal of Spatial Information Science (JoSIS) > n° 15 (September 2017) . - pp 65 - 88[article]Sailing : Cognition, action, communication / Thora Tenbrink in Journal of Spatial Information Science (JoSIS), n° 15 (September 2017)
[article]
Titre : Sailing : Cognition, action, communication Type de document : Article/Communication Auteurs : Thora Tenbrink, Auteur ; Frank Dylla, Auteur Année de publication : 2017 Article en page(s) : pp 3 - 33 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] navigation maritime
[Termes IGN] repère de référence
[Termes IGN] représentation cognitive
[Termes IGN] représentation mentale spatiale
[Vedettes matières IGN] CartologieRésumé : (Auteur) How do humans perceive and think about space, and how can this be represented adequately? For everyday activities such as locating objects or places, route planning, and the like, many insights have been gained over the past few decades, feeding into theories of spatial cognition and frameworks for spatial information science. In this paper, we explore sailing as a more specialized domain that has not yet been considered in this way, but has a lot to offer precisely because of its peculiarities. Sailing involves ways of thinking about space that are not normally required (or even acquired) in everyday life. Movement in this domain is based on a combination of external forces and internal (human) intentions that impose various kinds of directionality, affecting local action as well as global planning. Sailing terminology is spatial to a high extent, and involves a range of concepts that have received little attention in the spatial cognition community. We explore the area by focusing on the core features of cognition, action, and communication, and suggest a range of promising future areas of research in this domain as a showcase of the fascinating flexibility of human spatial cognition. Numéro de notice : A2017-820 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5311/JOSIS.2017.15.350 En ligne : https://doi.org/10.5311/JOSIS.2017.15.350 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89305
in Journal of Spatial Information Science (JoSIS) > n° 15 (September 2017) . - pp 3 - 33[article]Domains of uncertainty visualization research: a visual summary approach / Jennifer Smith Mason in Cartography and Geographic Information Science, Vol 44 n° 4 (July 2017)
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Titre : Domains of uncertainty visualization research: a visual summary approach Type de document : Article/Communication Auteurs : Jennifer Smith Mason, Auteur ; David Retchless, Auteur ; Alexander Klippel, Auteur Année de publication : 2017 Article en page(s) : pp 296 - 309 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] carte heuristique
[Termes IGN] carte synthétique
[Termes IGN] classification
[Termes IGN] incertitude des données
[Termes IGN] interface web
[Termes IGN] visualisationRésumé : (auteur) The inherent uncertainty of geospatial data has engendered a critical research agenda addressing all facets of uncertainty visualization due to the communicative efficiency of graphical representation. To organize this broad research area, we have reviewed literature on geospatial uncertainty visualization and systematically and iteratively classified research in this field. Upon creating a classification, we developed several visual summaries over time, refining the classification and subsequent graphic as new relevant topics emerged. This visual summary extends current existing approaches to taxonomies by allowing users a quick visual overview of relevant topics in a research area at a glance. For each research paper on uncertainty visualization, this classification can be used to visually represent which domains are covered. In order to ensure that the visual summary approach and the corresponding domains developed in this article can be used reliably, we performed an inter-rater agreement task. The high agreement reveals that the domains in the classification that were identified are intuitive and can lead to objective, reproducible classifications (visual summaries) of research papers. In future research, we plan to refine the visual classification/summary approach by providing guided classification via a web interface to visually classify the entire body of literature on geospatial uncertainty visualization and visually explore any trends in research topics, how they have changed over the years, and identify sparser topics that still need to be addressed. Numéro de notice : A2017-223 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2016.1154804 En ligne : http://dx.doi.org/10.1080/15230406.2016.1154804 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85104
in Cartography and Geographic Information Science > Vol 44 n° 4 (July 2017) . - pp 296 - 309[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-2017041 RAB Revue Centre de documentation En réserve L003 Disponible An investigation into challenges experienced when route planning, navigating and wayfinding / Erin Koletsis in International journal of cartography, vol 3 n° 1 (June 2017)
[article]
Titre : An investigation into challenges experienced when route planning, navigating and wayfinding Type de document : Article/Communication Auteurs : Erin Koletsis, Auteur ; Corné P.J.M. Van Elzakker, Auteur ; Menno-Jan Kraak, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 4 - 18 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] itinéraire
[Termes IGN] lecture de carte
[Termes IGN] raisonnement spatial
[Termes IGN] représentation mentale spatiale
[Termes IGN] test de performance
[Termes IGN] utilisateur civil
[Vedettes matières IGN] CartologieRésumé : (Auteur) Some map users still experience difficulties when attempting to route plan, navigate and/or wayfind. This paper provides information on the outcomes of a research project that aims to identify the nature of the difficulties/challenges these users experience. The paper draws on findings from studies of strategies used by novice and experienced map users, and users with poor spatial abilities, to identify the skills that those with poor spatial abilities or with little map reading experience lack. Data were collected using Tobii Pro Glasses 2 hardware and associated software. Fourteen participants walked between two predetermined locations while wearing eye-tracking glasses and speaking their thoughts aloud. The data collected in this study were analysed using quantitative and qualitative approaches. Analysis of the results shows three key findings for this particular group: looking at the map incessantly led to missed environmental cues; street names were not labelled at decision-making points on the map; and some individuals having poor spatial abilities prefer small-scale landmarks, for example, buildings with numbers to locate themselves, as opposed to using road names or larger landmarks. We argue that by considering these findings, map designs could be adjusted to meet the needs of map users with poor spatial abilities. Numéro de notice : A2017-316 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/23729333.2017.1300996 En ligne : http://dx.doi.org/10.1080/23729333.2017.1300996 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85370
in International journal of cartography > vol 3 n° 1 (June 2017) . - pp 4 - 18[article]Total 3D-viewshed map : quantifying the visible volume in digital elevation models / Antonio Rodriguez Cervilla in Transactions in GIS, vol 21 n° 3 (June 2017)PermalinkAugmented reality as a digital teaching environment to develop spatial thinking / Carlos Carbonell-Carrera in Cartography and Geographic Information Science, Vol 44 n° 3 (May 2017)PermalinkCaractériser l'agriculture périurbaine pour mieux l'intégrer à la planification urbaine : propositions méthodologiques / Esther Sanz Sanz in Espace géographique, vol 46 n° 2 (avril - juin 2017)PermalinkWhere is it (in the map) ? recall and recognition of spatial information / Anne-Kathrin Bestgen in Cartographica, vol 52 n° 1 (Spring 2017)PermalinkPermalinkAnalyse et cartographie des sentiments dans des récits de vie de migrants / Catherine Dominguès (2017)PermalinkCartographier des récits : itinéraires, lieux, perceptions, évènements / Esteban Lorente Galvez (2017)PermalinkMapping experiences of personal appropriation of a new place from a diachronic perspective / Carmen Brando (2017)PermalinkSparsity, redundancy and robustness in artificial neural networks for learning and memory / Philippe Tigréat (2017)PermalinkThe socio-environmental data explorer (SEDE) : a social media–enhanced decision support system to explore risk perception to hazard events / Eric Shook in Cartography and Geographic Information Science, vol 43 n° 5 (November 2016)Permalink