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A Novel Circle Detection Algorithm for Iris Segmentation

홍채 영역 분할을 위한 새로운 원 검출 알고리즘

  • Received : 2013.08.25
  • Accepted : 2013.10.21
  • Published : 2013.12.30

Abstract

There is a variety of researches about recognition system using biometric data these days. In this study, we propose a new algorithm, uses simultaneous equation that made of the edge of objects, to segment an iris region without threshold values from an anterior eye image. The algorithm attempts to find a center area through calculated outskirts information of an iris, and decides the area where the most points are accumulated. To verify the proposed algorithm, we conducted comparative experiments to Hough transform and Daugman's method, based on 50 images anterior eye images. It was found that proposed algorithm is 5 and 75 times faster than on each algorithm, and showed high accuracy of detecting a center point (95.36%) more than Hough transform (92.43%). In foreseeable future, this study is expected to useful application in diverse department of human's life, such as, identification system using an iris, diagnosis a disease using an anterior image.

Keywords

Iris;Circle detection;Image processing;Biometric

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