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Map matching for semi-restricted trajectories / Timon Behr (2021)  

Public Titre : Map matching for semi-restricted trajectories Type de document : Article/Communication Auteurs : Timon Behr, Auteur ; Thomas van Dijk, Auteur ; Axel Forsch, Auteur ; Jan‐Henrik Haunert, Auteur ; Sabine Storandt, Auteur Editeur : Leibniz [Allemagne] : Schloss Dagstuhl – Leibniz-Zentrum für Informatik Année de publication : 2021 Conférence : GIScience 2021, 11th International Conference on Geographic Information Science 27/09/2021 30/09/2021 Poznań Pologne Open Access Proceedings Importance : 16 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] appariement de cartes [Termes IGN] cycliste [Termes IGN] information sémantique [Termes IGN] OpenStreetMap [Termes IGN] piéton [Termes IGN] positionnement par GPS [Termes IGN] réseau routier [Termes IGN] trajet (mobilité) Résumé : (auteur) We consider the problem of matching trajectories to a road map, giving particular consideration to trajectories that do not exclusively follow the underlying network. Such trajectories arise, for example, when a person walks through the inner part of a city, crossing market squares or parking lots. We call such trajectories semi-restricted. Sensible map matching of semi-restricted trajectories requires the ability to differentiate between restricted and unrestricted movement. We develop in this paper an approach that efficiently and reliably computes concise representations of such trajectories that maintain their semantic characteristics. Our approach utilizes OpenStreetMap data to not only extract the network but also areas that allow for free movement (as e.g. parks) as well as obstacles (as e.g. buildings). We discuss in detail how to incorporate this information in the map matching process, and demonstrate the applicability of our method in an experimental evaluation on real pedestrian and bicycle trajectories. Numéro de notice : C2021-081 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Communication DOI : 10.4230/LIPIcs.GIScience.2021.II.12 Date de publication en ligne : 14/09/2021 En ligne : https://doi.org/10.4230/LIPIcs.GIScience.2021.II.12 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100939

Accentuating focus maps via partial schematization / Thomas van Dijk (2013)    

Public contenu dans Proceedings of the Sixth ACM SIGSPATIAL International Workshop on Computational Transportation Science / Craig A. Knoblock (2013)   Titre : Accentuating focus maps via partial schematization Type de document : Article/Communication Auteurs : Thomas van Dijk, Auteur ; Arthur Van Goethem, Auteur Editeur : New York [Etats-Unis] : Association for computing machinery ACM Année de publication : 2013 Conférence : IWCTS 2013, 6th ACM SIGSPATIAL International Workshop on Computational Transportation Science 05/11/2013 08/11/2013 Orlando Floride - Etats-Unis Proceedings ACM Importance : 4 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Termes IGN] carte synthétique [Termes IGN] carte thématique [Termes IGN] visualisation de données [Vedettes matières IGN] Géovisualisation Résumé : (auteur) We present an algorithm for schematized focus maps. Focus maps integrate a high detailed, enlarged focus region continuously in a given base map. Recent methods integrate both with such low distortion that the focus region becomes hard to identify. We combine focus maps with partial schematization to display distortion of the context and to emphasize the focus region. Schematization visually conveys geographical accuracy, while not increasing map complexity. We extend the focus-map algorithm to incorporate geometric proximity relationships and show how to combine focus maps with schematization in order to cater to different use cases. Note de contenu : bibliographie Numéro de notice : A2013-818 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1145/2525314.2525452 En ligne : https://doi.org/10.1145/2525314.2525452 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80904

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