Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Feature Extraction for Iris Recognition Using Scale-Space Filtering

스케일 스페이스 필터링을 이용한 홍채 특징 추출

  • 홍진일 (홍익대학교 전전컴 공학부) ;
  • 김동민 (홍익대학교 전전컴 공학부) ;
  • 양우석 (홍익대학교 전전컴 공학부)
  • Published : 2002.12.01
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Abstract

In this paper, we introduce a new technology to extract the unique features from an iris image, which uses scale-space filtering. Resulting iris code can be used to develop a system for rapid and automatic identification of persons, with high reliability and confidence levels. First, an iris part is separated from the whole image. Then the radius and center of the iris are obtained. Once the regions that have a high possibility of being noise are discriminated, the features presented in the highly detailed pattern is then extracted from the iris image. Scale-space filtering technique is applied for feature extraction.

본 논문은 스케일-스페이스 필터링 기법을 활용한 홍채 인식에 사용할 수 있는 홍채 특징 추출 방법을 소개한다. 추출된 특징을 이용한 홍채 코드는 신뢰성 있는 실시간 홍채 인식 시스템에 활용할 수 있을 것이다. 홍채 추출 알고리즘은 우선 홍채 부분만을 영상에서 분리하고 중심과 반경을 구한 후 불필요한 부분을 다시 제거한다. 얻어진 홍채 영상은 극좌표 영상으로 변환하고 스케일 스페이스 필터링을 한다. 필터링된 영상으로부터 추출된 섬세한 특징은 홍채 코드로서 만들어진다.

Keywords

References

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