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Gestalt aspects for differentiating the representation of landmarks in virtual navigation / Marcio Augusto Reolon Schmidt in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 159 - 164 Titre : Gestalt aspects for differentiating the representation of landmarks in virtual navigation Type de document : Article/Communication Auteurs : Marcio Augusto Reolon Schmidt, Auteur ; Lucienne Stamato Delazari, Auteur Année de publication : 2013 Article en page(s) : pp 159 - 164 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] carte topographique [Termes IGN] communication cartographique [Termes IGN] conception cartographique [Termes IGN] évaluation [Termes IGN] point de repère [Termes IGN] Web Map Service [Vedettes matières IGN] Cartologie Résumé : (Auteur) The application of nonimmersive virtual reality (VR) to the creation of rich cartographic representations in 3D is a current research area in cartography. However, the cartographic knowledge needed to build these representations is lacking. The consequences of this include misconceptions in map design that can inhibit or even impair understanding of the representation. A common task in cartographic VR is virtual navigation supported by 3D topographic maps. This geographical task gathers different knowledge schema, based on the selection of specific features for use as landmarks. In VR, there is a need for adaptation of cartographic representations to improve cartographic communication. The strategy adopted in this research uses Gestalt aspects to direct the user's selective attention to features that will act as landmarks. To evaluate this proposition, we compare sketch maps from 3D and conventional 2D topographic maps made by 43 volunteers and identify which features were used as landmarks and how they were drawn in the sketch maps. The number of landmarks identified by the user, their topology and orientation, and how the symbols were drawn highlights the success of this proposal for 3D topographic maps for virtual navigation. Numéro de notice : A2013-749 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2013.807031 En ligne : https://doi.org/10.1080/15230406.2013.807031 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32885 [article]

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Web map-based POI visualization for spatial decision support / Changbin Yu in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 172 - 182 Titre : Web map-based POI visualization for spatial decision support Type de document : Article/Communication Auteurs : Changbin Yu, Auteur ; Qingyun Du, Auteur ; Zhiyuan Zhao, Auteur ; Ke Nie, Auteur Année de publication : 2013 Article en page(s) : pp 172 - 182 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] Chine [Termes IGN] image multidimensionnelle [Termes IGN] outil d'aide à la décision [Termes IGN] point d'intérêt [Termes IGN] visualisation cartographique [Termes IGN] web mapping Résumé : (Auteur) The ability to extract useful information from data is a topic of considerable interest, especially with regard to organizing point-of-interest (POI) information containing many attributes as well as data about business. In generating intuitive results from investigations of traditional relational databases, traditional scientific visualization approaches for multidimensional data (e.g., Visualization in Scientific Computing) are inefficient, and deficiencies are often encountered when organizing multidimensional POIs using current online mapping tools (e.g., Google Maps). A new web visualization strategy combining a tile base map and POI symbols is proposed in this study to address the problem. In this strategy, web maps are used as the background, and POI symbols are overlaid on top of the geographical base map through a web visualization. The design and implementation of the variable model of the POI symbol were developed based on the principles of cognitive psychology. Using the information management system of welfare lottery terminals in Hubei Province in China as an example, the system architecture and functions were built using the hypermedia model, and detailed spatial decision support was provided based on the proposed visual environment integrating DCM (i.e., Digital Cartographic Model) and DLM (i.e., Digital Landscape Model) together. Numéro de notice : A2013-750 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2013.807030 En ligne : https://doi.org/10.1080/15230406.2013.807030 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32886 [article]

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Geo-tagged Twitter collection and visualization system / Hideyuki Fujita in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 183 - 191 Titre : Geo-tagged Twitter collection and visualization system Type de document : Article/Communication Auteurs : Hideyuki Fujita, Auteur Année de publication : 2013 Article en page(s) : pp 183 - 191 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] données issues des réseaux sociaux [Termes IGN] géobalise [Termes IGN] partage de données localisées [Termes IGN] Twitter [Termes IGN] visualisation cartographique Résumé : (Auteur) Mobile social media generate valuable data for analyzing human behavior and events in the real world. In this study, we developed a distributed system for collecting geo-tagged data from Twitter. The proposed system can collect several times as much data as commonly used methods. We also developed a spatio-temporal visualization tool for displaying the collected data. We conducted a data-collection and visualization experiment in central Tokyo and showed that the collected data reflected many events in the real world. Numéro de notice : A2013-751 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2013.800272 En ligne : https://doi.org/10.1080/15230406.2013.800272 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32887 [article]

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ScaleMaster 2.0: a ScaleMaster extension to monitor automatic multi-scales generalizations / Guillaume Touya in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 192 - 200 Titre : ScaleMaster 2.0: a ScaleMaster extension to monitor automatic multi-scales generalizations Type de document : Article/Communication Auteurs : Guillaume Touya , Auteur ; Jean-François Girres , Auteur Année de publication : 2013 Article en page(s) : pp 192 - 200 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] base de données multi-représentation [Termes IGN] contrôle automatique [Termes IGN] généralisation automatique de données [Termes IGN] généralisation cartographique automatisée [Termes IGN] module d'extension Résumé : (Auteur) Little by little, co-existing geographical data sets are integrated into multi-representation databases, where the data sets represent different level of detail, or different point of views for the same geographical features. The ScaleMaster model makes it possible to formalize how to choose the features to map from the different data sets. The paper proposes an extension of the ScaleMaster model that drives automatic generalization rather than guidelines for manual mapmaking. The ScaleMaster 2.0 has been implemented and is tested for use with real data. Numéro de notice : A2013-752 Affiliation des auteurs : LASTIG COGIT (2012-2019) Autre URL associée : vers HAL Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/15230406.2013.809233 En ligne : http://dx.doi.org/10.1080/15230406.2013.809233 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32888 [article]

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Map design aspects, route complexity, or social background? Factors influencing user satisfaction with indoor navigation maps / Alexandra Lorenz in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 201 - 209 Titre : Map design aspects, route complexity, or social background? Factors influencing user satisfaction with indoor navigation maps Type de document : Article/Communication Auteurs : Alexandra Lorenz, Auteur ; Cornelia Thierbach, Auteur ; Nina Baur, Auteur ; Thomas Kolbe, Auteur Année de publication : 2013 Article en page(s) : pp 201 - 209 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] analyse de variance [Termes IGN] carte d'intérieur [Termes IGN] conception cartographique [Termes IGN] évaluation [Termes IGN] navigation pédestre [Termes IGN] utilisateur Résumé : (Auteur) Indoor map design is still an uncharted territory. More often than not, existing architectural floor plans are used as visualization means that do not fulfill cartographic requirements. In collaboration between geoinformation science and sociology, we develop and investigate cartographic methods for effective route guidance in indoor environments. The baseline for our evaluation is the annual user studies with up to 1100 participants per year. Since 2009, they were conducted during the “Long Night of Sciences,” a big event where large scientific institutions present themselves to the general public. For the 2011 study, we developed eight maps, which varied in design with respect to two map properties: map perspective and landmark representation. We evaluated the map design features as well as route complexity and sociodemographic characteristics. In order to rate their effect on an user satisfaction as an indicator of navigational success, we carried out a series of analyses of variance. Our results underline the importance of a map design: Map perspective and landmarks alone explain about 30% of the variance in the user satisfaction with maps, which is by far the biggest share in a navigational success. Numéro de notice : A2013-753 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2013.807029 En ligne : https://doi.org/10.1080/15230406.2013.807029 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32889 [article]

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Crowdsourcing techniques for augmenting traditional accessibility maps with transitory obstacle information / Matthew T. Rice in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 210 - 219 Titre : Crowdsourcing techniques for augmenting traditional accessibility maps with transitory obstacle information Type de document : Article/Communication Auteurs : Matthew T. Rice, Auteur ; R. Daniel Jacobson, Auteur ; Douglas R. Caldwell, Auteur ; Scott D. Mcdermott, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 210 - 219 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie [Termes IGN] accessibilité [Termes IGN] acquisition de données [Termes IGN] bibliothèque numérique [Termes IGN] carte tactile [Termes IGN] détail topographique [Termes IGN] navigation pédestre [Termes IGN] production participative [Termes IGN] répertoire toponymique Résumé : (Auteur) One of the most scrutinized contemporary techniques for geospatial data collection and production is crowdsourcing. This inverts the traditional top-down geospatial data production and distribution methods by emphasizing on the participation of the end user or community. The technique has been shown to be particularly useful in the domain of accessibility mapping, where it can augment traditional mapping methods and systems by providing information about transitory obstacles in the built environment. This research paper presents details of techniques and applications of crowdsourcing and related methods for improving the presence of transitory obstacles in accessibility mapping systems. The obstacles are very difficult to incorporate with any other traditional mapping workflow, since they typically appear in an unplanned manner and disappear just as quickly. Nevertheless, these obstacles present a major impediment to navigating an unfamiliar environment. Fortunately, these obstacles can be reported, defined, and captured through a variety of crowdsourcing techniques, including gazetteer-based geoparsing and active social media harvesting, and then referenced in a crowdsourced mapping system. These techniques are presented, along with context from research in tactile cartography and geo-enabled accessibility systems. Numéro de notice : A2013-754 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.1080/15230406.2013.799737 En ligne : https://doi.org/10.1080/15230406.2013.799737 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32890 [article]

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Land-use monitoring by topographic data analysis / Tobias Krüger in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 220 - 228 Titre : Land-use monitoring by topographic data analysis Type de document : Article/Communication Auteurs : Tobias Krüger, Auteur ; Gotthard Meinel, Auteur ; Ulrich Schumacher, Auteur Année de publication : 2013 Article en page(s) : pp 220 - 228 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse de données [Termes IGN] base de données topographiques [Termes IGN] indicateur [Termes IGN] surveillance de l'urbanisation [Termes IGN] utilisation du sol [Termes IGN] visualisation cartographique Résumé : (Auteur) The rate of land consumption is an important factor to be considered within policies on sustainable land use aiming to reduce demand for settlement and traffic areas. As an expression of the political intent to achieve sustainable development, the German government announced to reduce the consumption of open space for settlement or transportation infrastructure significantly by 2020. Progress toward such specific goals can, of course, only be monitored if planning authorities are supplied with up-to-date and precise information on land use. This article presents one approach to the calculation of trends in land use that uses geoprocessing of topographic base data. Among the advantages of this approach are the nationwide availability of data with homogeneous quality and regular mandatory updating by surveying authorities. The spatial analysis of topographic base data is currently a highly automated process, which means geoprocessing procedures can be repeated regularly in order to realize time series. Such systematic monitoring of land use is undertaken by the project Monitor of Settlement and Open Space Development (IOER Monitor). By mid-2013, the fourth time period based on data from 2012 will be available online, ensuring that information on a wide range of land-use types is provided for a time series beginning back in 2006. Thus, the IOER Monitor is a convenient tool for the analysis and monitoring of land use for all administrative units ranging from German municipalities (approximately 12,000 in number) to the country as a whole, as well as for raster cells ranging from 100 m to 10 km. Numéro de notice : A2013-755 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2013.809232 En ligne : https://doi.org/10.1080/15230406.2013.809232 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32891 [article]

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Wind farms: GIS-based visual impact assessment and visualization tools / Pilar Chias in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)  

Public [article]  inCartography and Geographic Information Science > vol 40 n° 3 (June 2013) . - pp 229 - 237 Titre : Wind farms: GIS-based visual impact assessment and visualization tools Type de document : Article/Communication Auteurs : Pilar Chias, Auteur ; Tomás Abad, Auteur Année de publication : 2013 Article en page(s) : pp 229 - 237 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse spatiale [Termes IGN] énergie renouvelable [Termes IGN] éolienne [Termes IGN] Espagne [Termes IGN] impact sur l'environnement [Termes IGN] outil d'aide à la décision [Termes IGN] paysage [Termes IGN] visualisation 3D Résumé : (Auteur) Landscape is gradually being considered an essential resource and, therefore, is a variable to be included in land planning and protection designations. A structured method of landscape assessment, which links descriptions, classification, analysis, and evaluation, will provide an integrated framework within which the problem of scenic impact from renewable energy sources can be debated and solved. Perceptual qualitative and quantitative data – such as road networks, land cover, satellite imagery, and aerial photography – can be used for site description and analysis or for 3D modeling and GIS-based visualization work. The case study in which our method was applied demonstrates the impact of wind turbines and wind farms, as well as their cumulative effects in Sierra de Pela (Soria and Guadalajara, Spain). Numéro de notice : A2013-756 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2013.809231 En ligne : https://doi.org/10.1080/15230406.2013.809231 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32892 [article]

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