Tj. Grycewicz et B. Javidi, EXPERIMENTAL COMPARISON OF BINARY JOINT TRANSFORM CORRELATORS USED FOR FINGERPRINT IDENTIFICATION, Optical engineering, 35(9), 1996, pp. 2519-2525
We compare the experimental performance of 12 variations of the binary
joint transform correlator (BJTC) when used for fingerprint identific
ation. 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 confi
guration, four binarization techniques were implemented: global thresh
old, Fourier plane windowing, frame subtraction, and frame subtraction
followed by windowing. A set of 10 experiments was used to characteri
ze the output peak intensity, peak-to-noise ratio, and discrimination
ratio. The same set of experiments was run on each of the 12 correlato
r variants. (C) 1996 Society of Photo-Optical instrumentation Engineer
s.