Identification of Partially Occluded Map Symbols

Jari Korpi, Mohammad Haybatollahi, Paula Ahonen-Rainio

    Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

    Abstrakti

    Maps should be legible at all scales, and the information density of a map should be adapted to fulfill this goal. However, there are situations in which overlapping symbols might not be easily avoided. These kinds of cluttered or over-plotted situations often occur today in geovisual analytics and in map mash-ups created using Web 2.0 technologies. In this research project, we examine via a user test the extent to which occluded symbols can still be identifiable. Specifically, we tested how different levels of occlusion affected the accuracy and response time of finding symbols that varied in either color hue, abstract shape, or pictogram. The results of the test show that the efficiency of the symbols decreases when the symbols become partially occluded. Still, even half-occluded complex shapes can be identified quite accurately. Symbols varying in color hue seem to tolerate occlusion the best.
    Alkuperäiskielienglanti
    LehtiCartographic Perspectives
    Vuosikerta76
    Sivut19-32
    Sivumäärä14
    ISSN1048-9053
    TilaJulkaistu - 2014
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

    Lisätietoja

    Korpi, J. A., Haybatollahi, M., & Ahonen-Rainio, P. (2014). Identification of partially occluded map symbols. Cartographic Perspectives, (76), 19-32.
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