- 개인 인증을 위한 체적 홀로그래픽 지문인식 시스템
- Volume Holographic Fingerprint Recognition System for Personal Identification
- ㆍ 저자명
- 이승현
- ㆍ 간행물명
- 한국산업안전학회지
- ㆍ 권/호정보
- 1998년|13권 4호|pp.256-263 (8 pages)
- ㆍ 발행정보
- 한국안전학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this paper, we propose a volume holographic fingerprint recognition system based on optical correlator for personal identification. Optical correlator has high speed and parallel processing characteristics of optics. Matched filters are recorded into a volume hologram that can store data with high density, transfer them with high speed, and select a randomly chosen data element. The multiple reference images of database are prerecorded in a photorefractive crystal in the form of Fourier transform images, simply by passing the image displayed in a spatial light modulator through a Fourier transform lens. The angular multiplexing method for multiple holograms of database can be achieved by rotating the crystal by use of a step motor. Experimental results show that the proposed system can be used for the security verification system.