SimpliFly : A Methodology for Simplification and Thematic Enhancement of Trajectories

Movement data sets collected using today's advanced tracking devices consist of complex trajectories in terms of length, shape, and number of recorded positions. Multiple additional attributes characterizing the movement and its environment are often also included making the level of complexity...

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Détails bibliographiques
Publié dans:IEEE transactions on visualization and computer graphics. - 1996. - 21(2015), 1 vom: 10. Jan., Seite 107-21
Auteur principal: Vrotsou, Katerina (Auteur)
Autres auteurs: Janetzko, Halldor, Navarra, Carlo, Fuchs, Georg, Spretke, David, Mansmann, Florian, Andrienko, Natalia, Andrienko, Gennady
Format: Article en ligne
Langue:English
Publié: 2015
Accès à la collection:IEEE transactions on visualization and computer graphics
Sujets:Journal Article
Description
Résumé:Movement data sets collected using today's advanced tracking devices consist of complex trajectories in terms of length, shape, and number of recorded positions. Multiple additional attributes characterizing the movement and its environment are often also included making the level of complexity even higher. Simplification of trajectories can improve the visibility of relevant information by reducing less relevant details while maintaining important movement patterns. We propose a systematic stepwise methodology for simplifying and thematically enhancing trajectories in order to support their visual analysis. The methodology is applied iteratively and is composed of: (a) a simplification step applied to reduce the morphological complexity of the trajectories, (b) a thematic enhancement step which aims at accentuating patterns of movement, and (c) the representation and interactive exploration of the results in order to make interpretations of the findings and further refinement to the simplification and enhancement process. We illustrate our methodology through an analysis example of two different types of tracks, aircraft and pedestrian movement
Description:Date Completed 08.06.2016
Date Revised 11.09.2015
published: Print
Citation Status MEDLINE
ISSN:1941-0506
DOI:10.1109/TVCG.2014.2337333