Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Rolled Fingerprint Merge Algorithm Using Adaptive Projection Mask

가변 투영마스크를 이용한 회전지문 정합 알고리즘에 관한 연구

  • 백영현 ((주)유니온커뮤니티 신기술개발연구소)
  • Received : 2013.08.30
  • Accepted : 2013.11.27
  • Published : 2013.12.25
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Abstract

We propose a rolled fingerprint merging algorithm that effectively merges plain fingerprints in consecutive frame units that are fed through rolling and detects more fingerprint minutiae in order to increase the fingerprint recognition rate. The proposed rolled fingerprint merging algorithm uses a adaptive projection mask; it contains a detector that separates plain fingerprints from the background and a projection mask generator that sequentially projects the detect ed images. In addition, in the merging unit, the pyramid-shaped projection method is used to detect merged rolled fingerprints from the generated variable projective mask, starting from the main images. Simulations show that the extracted minutia e are 46.79% more than those from plain fingerprints, and the proposed algorithm exhibits excellent performance by detecting 52.0% more good fingerprint minutiae that are needed for matching.

본 논문에서는 회전을 통해 입력되는 연속 프레임 단위의 평면지문을 효과적으로 정합하여 보다 많은 지문의 특징점 정보를 취득함으로써, 지문 인식율을 높일 수 있는 회전지문 정합 알고리즘을 제안한다. 본 논문에서 제안한 가변 투영마스크를 이용한 회전지문 정합 알고리즘은 배경과 평면지문을 분리하는 검출부와 검출된 영상을 순차적으로 투영할 수 있는 투영 마스크 생성부를 갖는다. 또한 정합부에서는 생성된 가변 투영마스크를 중심영상부터 피라미드 형태의 투영법을 이용하여 정합된 회전지문을 취득하였다. 모의실험 결과 평면지문에서 추출되는 특징점수 평균 46.79%, 매칭을 위한 좋은 정보를 포함한 GOOD특징점의 개수는 52.0% 많이 검출됨을 보였다.

Keywords

References

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