GeoTemCo: Comparative Visualization of Geospatial-Temporal Data with Clutter Removal Based on Dynamic Delaunay Triangulations View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2013

AUTHORS

Stefan Jänicke , Christian Heine , Gerik Scheuermann

ABSTRACT

The amount of online data annotated with geospatial and temporal metadata has grown rapidly in the recent years. Providers like Flickr and Twitter are popular, but hard to browse. Many systems exist that, in multiple linked views, show the data under geospatial, temporal, and topical aspects. We unify and extend these systems in a Web application to support comparison of multiple, potentially large result sets of textual queries with extended interaction capabilities. We present a novel fast algorithm using a dynamic Delaunay triangulation for merging glyphs in the map view into so-called circle groups to avoid visual clutter, which is critical for the comparative setting. We evaluate our design by qualitative comparison with existing systems. More... »

PAGES

160-175

References to SciGraph publications

  • 2011-04-12. Geovisualization and Archaeology: supporting Excavation Site Research in ADVANCES IN CARTOGRAPHY AND GISCIENCE. VOLUME 2
  • Book

    TITLE

    Computer Vision, Imaging and Computer Graphics. Theory and Application

    ISBN

    978-3-642-38240-6
    978-3-642-38241-3

    Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/978-3-642-38241-3_11

    DOI

    http://dx.doi.org/10.1007/978-3-642-38241-3_11

    DIMENSIONS

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