
Proceedings Paper
Coding considerations for high-bandwidth analog optical signal processing applications based on spectral holographyFormat | Member Price | Non-Member Price |
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Paper Abstract
The pattern matching for fingerprints requires a large amount of data and computation time. Practical fingerprint
identification systems require minimal errors and ultrafast processing time to perform real time verification and
identification. By utilizing the two-dimensional processing capability, ultrafast processing speed and noninterfering
communication of optical processing techniques, fingerprint identification systems can be
implemented in real time. Among the various pattern matching systems, the joint transform correlator (JTC) has
been found to be inherently suitable for real time matching applications. Among the various JTCs, the fringeadjusted
JTC has been found to yield significantly better correlation output compared to alternate JTCs. In this
paper, we review the latest trends and advancements in fingerprint identification system based on the fringeadjusted
JTC. Since all pattern matching systems suffer from high sensitivity to distortions, the synthetic
discriminant function concept has been incorporated in fringe-adjusted JTC to ensure distortion-invariant
fingerprint identification. On the other hand a novel polarization-enhanced fingerprint verification system is
described where a polarized coherent light beam is used to record spatially dependent response of the scattering
medium of the fingerprint to provide detailed surface information, which is not accessible to mere intensity
measurement. It is shown that polarization-enhanced database improves the accuracy of the fingerprint
identification or verification system significantly.
Keywords: Fringe-adjust joint transform correlation, finger print identification, polarization, synthetic
discriminant function
Paper Details
Date Published: 17 June 2004
PDF: 11 pages
Proc. SPIE 5362, Advanced Optical and Quantum Memories and Computing, (17 June 2004); doi: 10.1117/12.540887
Published in SPIE Proceedings Vol. 5362:
Advanced Optical and Quantum Memories and Computing
Hans J. Coufal; Zameer U. Hasan, Editor(s)
PDF: 11 pages
Proc. SPIE 5362, Advanced Optical and Quantum Memories and Computing, (17 June 2004); doi: 10.1117/12.540887
Show Author Affiliations
R. Krishna Mohan, Montana State Univ./Bozeman (United States)
Tiejun Chang, Montana State Univ./Bozeman (United States)
Tiejun Chang, Montana State Univ./Bozeman (United States)
Kristian D. Merkel, Montana State Univ./Bozeman (United States)
Wm. Randall Babbitt, Montana State Univ./Bozeman (United States)
Wm. Randall Babbitt, Montana State Univ./Bozeman (United States)
Published in SPIE Proceedings Vol. 5362:
Advanced Optical and Quantum Memories and Computing
Hans J. Coufal; Zameer U. Hasan, Editor(s)
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