International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2533

Full Length Research Paper

Iris localization through Hough clustering

Lili Pan* and Mei Xie
University of Electronic Science and Technology of China, 2006 Xiyuan Avenue, Gaoxin West Zone, 611731, Chengdu, China.
Email: [email protected]

  •  Accepted: 29 February 2012
  •  Published: 23 May 2013


Occlusion, reflections and iris shape deformations are the obstacles that stand in the way of a complete solution to iris localization problem. How to reject outliers caused by occlusion and reflections as much as possible before ellipse or spline fitting is a key challenge. For this reason, we proposed a Hough clustering method, which utilizes the shape configuration of iris edge points and their local appearance characteristics to distinguish iris from non-iris edge points. The experimental results show an improved localization performance of the proposed algorithm on CASIA2.0 and 3.0 databases.


Key words: Hough clustering, local edge point experts.