Mahalanobis Distance-Based Algorithm for Ellipse Growing in Iris Preprocessing

  • Krzysztof Misztal
  • Jacek Tabor
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8104)

Abstract

We introduce a new algorithm for ellipse recognition. The approach uses Mahalanobis distance and statistical and analytical properties of circular and elliptical objects. At first stage of the algorithm the starting configuration of initial ellipse is defined. Next we apply a condition which describes how much the shape is ellipse-like on the boundary points.

The algorithm can be easily applied to detection of elliptical objects also on grayscale images. Moreover, we discuss the improvement in iris image preprocessing.

Keywords

Mahalanobis distance ellipse growing ellipse detection pattern recognition feature extraction 

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Copyright information

© IFIP International Federation for Information Processing 2013

Authors and Affiliations

  • Krzysztof Misztal
    • 1
  • Jacek Tabor
    • 2
  1. 1.Faculty of Physics and Applied Computer ScienceAGH University of Science and TechnologyKrakówPoland
  2. 2.Faculty of Mathematics and Computer ScienceJagiellonian UniversityKrakówPoland

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