Experimental comparison of binary joint transform correlators used for fingerprint identification

被引：22

作者：

Grycewicz, TJ ^{[1
]}

Javidi, B ^{[1
]}

机构：

[1] UNIV CONNECTICUT, DEPT ELECT & SYST ENGN, STORRS, CT 06269 USA

来源：

OPTICAL ENGINEERING | 1996年 / 35卷 / 09期

关键词：

optical security; binary joint transform correlator; fingerprint identification; frame subtraction; Fourier plane windowing; chirp encoding; optimum threshold function; Fourier plane processing;

D O I：

10.1117/1.600856

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare the experimental performance of 12 variations of the binary joint transform correlator (BJTC) when used for fingerprint identification. Three hardware architectures were used: a single spatial light modulator (SLM) BJTC, a BJTC using two input SLMs, and a chirp-encoded BJTC using two input SLMs. These correlators were implemented on the same hardware setup with minor modifications. With each hardware configuration, four binarization techniques were implemented: global threshold, Fourier plane windowing, frame subtraction, and frame subtraction followed by windowing. A set of 10 experiments was used to characterize the output peak intensity, peak-to-noise ratio, and discrimination ratio. The same set of experiments was run on each of the 12 correlator variants. (C) 1996 Society of Photo-Optical instrumentation Engineers.

引用

页码：2519 / 2525

页数：7

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