Improved real-time fingerprint verification by four-channel JTC

Hongxia Wang; Junfa He; Xuanke Zhao; Youzhang Zhu; Jun Li; Xiaobing Liu

doi:10.1117/12.483264

16 September 2002 Improved real-time fingerprint verification by four-channel JTC

Hongxia Wang, Junfa He, Xuanke Zhao, Youzhang Zhu, Jun Li, Xiaobing Liu

Proceedings Volume 4929, Optical Information Processing Technology; (2002) https://doi.org/10.1117/12.483264
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Hongxia Wang, Junfa He, Xuanke Zhao, Youzhang Zhu, Jun Li, and Xiaobing Liu "Improved real-time fingerprint verification by four-channel JTC", Proc. SPIE 4929, Optical Information Processing Technology, (16 September 2002); https://doi.org/10.1117/12.483264

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available