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Iris Recognition Using Vector Summation Of Gradient Orientation Vectors

그래디언트 방향 벡터의 벡터합을 이용한 홍채 인식

  • 최창수 (충북대학교 컴퓨터공학과) ;
  • 유관희 (충북대학교 컴퓨터교육과,정보산업공학과) ;
  • 전병민 (충북대학교 컴퓨터공학과)
  • Published : 2009.08.28

Abstract

Iris recognition is a biometric technology which can identify a person using the iris pattern. Recently, iris information is used in many fields such as access control and information security. It is important for the iris recognition system to extract the feature which is invariant to changes in iris patterns. Those changes can be occurred by the influence of lights, changes in the size of the pupil. In this paper, we propose a novel method based on vector summation of gradient orientation vectors. Experimental results show that the proposed method reduces processing time with simple vector calculation, requires small feature space and has comparable performance to the well-known previous methods.

홍채인식은 홍채의 무늬 패턴 정보를 이용하여 동일인 여부를 판별하는 생체인식 기술이다. 최근 들어 홍채정보는 출입통제, 정보보안등의 분야에 많이 활용되고 있다. 이러한 홍채 인식 시스템에 있어 조명의 영향이나 동공의 크기 등으로 인해 발생될 수 있는 홍채 패턴의 변화에 대해 무관한 특징을 추출하는 것은 중요한 과제이다. 본 논문에서는 그래디언트 방향 벡터의 벡터합을 이용한 새로운 홍채 인식 방법을 제안한다. 제안된 방법은 간단한 벡터 연산을 통해 특정 추출 시간을 줄였으며 적은 특징량으로 기존의 방법과 대등한 성능을 보임을 실험을 통하여 확인하였다.

Keywords

References

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