Voronoi diagram of polygonal chains under the discrete Fréchet distance

S. Bereg, K. Buchin, M. Buchin, M.L. Gavrilova, B. Zhu

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    2 Citations (Scopus)

    Abstract

    Polygonal chains are fundamental objects in many applications like pattern recognition and protein structure alignment. A well-known measure to characterize the similarity of two polygonal chains is the (continuous/discrete) Fréchet distance. In this paper, for the first time, we consider the Voronoi diagram of polygonal chains in d-dimension under the discrete Fréchet distance. Given a set C of n polygonal chains in d-dimension, each with at most k vertices, we prove fundamental properties of such a Voronoi diagram VD F (C). Our main results are summarized as follows.The combinatorial complexity of VD F(C) is at most O(n dk + ε).The combinatorial complexity of VD F(C) is at least Ω(n dk ) for dimension d = 1,2; and Ω(n d(k − 1) + 2) for dimension d > 2.
    Original languageEnglish
    Title of host publicationComputing and Combinatorics
    Subtitle of host publication 14th Annual International Conference, COCOON 2008, Dalian, China, June 27-29, 2008 Proceedings
    EditorsX. Hu, J. Wang
    Place of PublicationBerlin
    PublisherSpringer
    Chapter35
    Pages352-362
    Number of pages11
    ISBN (Electronic)978-3-540-69733-6
    ISBN (Print)978-3-540-69732-9
    DOIs
    Publication statusPublished - 2008

    Publication series

    NameLecture Notes in Computer Science (LNCS)
    Volume5092
    ISSN (Print)0302-9743

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