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Efficient Dominant Point Detection Based on Discrete Curve Structure

  • Phuc Ngo
  • Hayat Nasser
  • Isabelle Debled-RennessonEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9448)

Abstract

In this paper, we investigate the problem of dominant point detection on digital curves which consists in finding points with local maximum curvature. Thanks to previous studies of the decomposition of curves into sequence of discrete structures [5, 6, 7], namely maximal blurred segments of width \(\nu \) [13], an initial algorithm has been proposed in [14] to detect dominant points. However, an heuristic strategy is used to identify the dominant points. We now propose a modified algorithm without heuristics but a simple measure of angle. In addition, an application of polygonal simplification is as well proposed to reduce the number of detected dominant points by associating a weight to each of them. The experimental results demonstrate the efficiency and robustness of the proposed method.

Keywords

Dominant point Polygonal simplification Discrete structure 

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Phuc Ngo
    • 1
    • 2
  • Hayat Nasser
    • 1
    • 2
  • Isabelle Debled-Rennesson
    • 1
    • 2
    Email author
  1. 1.Université de Lorraine, LORIA, UMR 7503Vandoeuvre-lès-NancyFrance
  2. 2.CNRS, LORIA, UMR 7503Vandoeuvre-lès-NancyFrance

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