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Proceedings Paper

Improved real-time fingerprint verification by four-channel JTC
Author(s): Hongxia Wang; Junfa He; Xuanke Zhao; Youzhang Zhu; Jun Li; Xiaobing Liu
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Paper Abstract

In this paper the four-channel real-time joint transform correlator (JTC) for fingerprint verification is proposed which is consists of right-angle prism, 4f system, liquid crystal light valve, hololens array and CCD. Fingerprint image is inputted real-timely using a right-angle prism and processed by 4f system optically to insure the higher contrast. To avoid refusal phenomenon owing to fingerprint images distortion, the single channel correlation identification is changed to four-channel correlation recognition using hololens array. A little different reference fingerprint images from an identical finger are placed in different channels. When a object fingerprint image is inputted, four kinds of correlation results are presented. Not only the recognition accuracy is increased but the processing speed and capability of the system is enhanced. The experimental results are given in this paper.

Paper Details

Date Published: 16 September 2002
PDF: 4 pages
Proc. SPIE 4929, Optical Information Processing Technology, (16 September 2002); doi: 10.1117/12.483264
Show Author Affiliations
Hongxia Wang, Second Artillery Engineering College (China)
Junfa He, Second Artillery Engineering College (China)
Xuanke Zhao, Second Artillery Engineering College (China)
Youzhang Zhu, Second Artillery Engineering College (China)
Jun Li, Second Artillery Engineering College (China)
Xiaobing Liu, Second Artillery Engineering College (China)


Published in SPIE Proceedings Vol. 4929:
Optical Information Processing Technology
Guoguang Mu; Francis T. S. Yu; Suganda Jutamulia, Editor(s)

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