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Supporting accessibility for blind and vision-impaired people with a localized gazetteer and open source geotechnology / M. Rice in Transactions in GIS, vol 16 n° 2 (April 2012)  

Public [article]  inTransactions in GIS > vol 16 n° 2 (April 2012) . - pp 177 - 190 Titre : Supporting accessibility for blind and vision-impaired people with a localized gazetteer and open source geotechnology Type de document : Article/Communication Auteurs : M. Rice, Auteur ; A. Aburizaiza, Auteur ; R. Daniel Jacobson, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 177 - 190 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] accessibilité [Termes IGN] données localisées des bénévoles [Termes IGN] intégration de données [Termes IGN] logiciel libre [Termes IGN] navigation pédestre [Termes IGN] personne malvoyante [Termes IGN] PostGIS [Termes IGN] PostgreSQL [Termes IGN] répertoire toponymique Résumé : (Auteur) Disabled people, especially the blind and vision-impaired, are challenged by many transitory hazards in urban environments such as construction barricades, temporary fencing across walkways, and obstacles along curbs. These hazards present a problem for navigation, because they typically appear in an unplanned manner and are seldom included in databases used for accessibility mapping. Tactile maps are a traditional tool used by blind and vision-impaired people for navigation through urban environments, but such maps are not automatically updated with transitory hazards. As an alternative approach to static content on tactile maps, we use volunteered geographic information (VGI) and an Open Source system to provide updates of local infrastructure. These VGI updates, contributed via voice, text message, and e-mail, use geographic descriptions containing place names to describe changes to the local environment. After they have been contributed and stored in a database, we georeference VGI updates with a detailed gazetteer of local place names including buildings, administrative offices, landmarks, roadways, and dormitories. We publish maps and alerts showing transitory hazards, including location-based alerts delivered to mobile devices. Our system is built with several technologies including PHP, JavaScript, AJAX, Google Maps API, PostgreSQL, an Open Source database, and PostGIS, the PostgreSQL's spatial extension. This article provides insight into the integration of user-contributed geospatial information into a comprehensive system for use by the blind and vision-impaired, focusing on currently developed methods for geoparsing and georeferencing using a gazetteer. Numéro de notice : A2012-159 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01318.x Date de publication en ligne : 13/04/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01318.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31606 [article]

Design considerations for haptic and auditory map interfaces / M. Rice in Cartography and Geographic Information Science, vol 32 n° 4 (October 2005)  

Public [article]  inCartography and Geographic Information Science > vol 32 n° 4 (October 2005) . - pp 381 - 391 Titre : Design considerations for haptic and auditory map interfaces Type de document : Article/Communication Auteurs : M. Rice, Auteur ; R. Daniel Jacobson, Auteur ; R.G. Golledge, Auteur ; D. Jones, Auteur Année de publication : 2005 Article en page(s) : pp 381 - 391 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie [Termes IGN] carte auditive [Termes IGN] conception cartographique [Termes IGN] personne malvoyante Résumé : (Auteur) Communicating spatial information to the blind and visually impaired using maps and graphics presents many difficulties. Past research has offered advice to cartographers on topics such as tactile areal, point, and line symbolization; on perceptual problems related to dense linear features on tactile maps; and on the relationship between categorical data, measurement theory, and tactile discrimination. With this previous work as a foundation, we describe our research efforts with haptic and auditory maps-the Haptic Soundscapes Project. Haptic Soundscapes maps allow blind and visually-impaired individuals to feel map features through force feedback devices and hear auditory cues that add both redundant and complementary information. Recent experimental work by the authors has led to several recommended practices for cartographic data simplification, object size discrimination, shape identification, and general interface navigation. The authors also present haptic and auditory mapping examples to illustrate design ideas, algorithms, and technical requirements. Future prospects for automated haptic and auditory map creation are discussed and presented in the context of the past work in generating maps for the blind and visually impaired from cartographic data. Numéro de notice : A2005-540 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1559/152304005775194656 En ligne : https://doi.org/10.1559/152304005775194656 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27676 [article]

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