Analysis and Comparative Evaluation of Discrete Tangent Estimators

  • Jacques-Olivier Lachaud
  • Anne Vialard
  • François de Vieilleville
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3429)

Abstract

This paper presents a comparative evaluation of tangent estimators based on digital line recognition on digital curves. The comparison is carried out with a comprehensive set of criteria: accuracy on smooth or polygonal shapes, behaviour on convex/concave parts, computation time, isotropy, asymptotic convergence. We further propose a new estimator mixing the qualities of existing ones and outperforming them on most mentioned points.

Keywords

Comparative Evaluation Tangent Direction Asymptotic Convergence Standard Line Maximal Segment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Jacques-Olivier Lachaud
    • 1
  • Anne Vialard
    • 1
  • François de Vieilleville
    • 1
  1. 1.LaBRIUniv. Bordeaux 1TalenceFrance

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