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Proceedings Paper

Synthesized phase objects used instead of real ones for optical-digital recognition systems: experiment
Author(s): Pavel V. Yezhov; Alexander V. Kuzmenko; Tatiana N. Smirnova; Andriy A. Ivanovskyy
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Paper Abstract

The method of pattern recognition based on replacement of object images incoming to the correlator input by object-dependent synthesized phase objects calculated using the iterative Fourier-transform algorithm was developed by us earlier. In this work, we performed experimental testing the above method by using an opticaldigital 4F-correlator. Synthesized phase objects were introduced into the correlator through the spatial light modulator LC 2002. Holographic matched filters were recorded using self-developing photopolymers PPC-488. For two test objects, we obtained unified (δ-like) correlation signals with the signal-to-noise ratio reaching 24 dB, while the diffraction efficiency of these filters was up to 30%.

Paper Details

Date Published: 14 June 2006
PDF: 12 pages
Proc. SPIE 6254, Seventh International Conference on Correlation Optics, 625419 (14 June 2006); doi: 10.1117/12.679944
Show Author Affiliations
Pavel V. Yezhov, Institute of Physics (Ukraine)
Alexander V. Kuzmenko, Institute of Applied Optics (Ukraine)
Tatiana N. Smirnova, Institute of Physics (Ukraine)
Andriy A. Ivanovskyy, Specialized Enterprise Holography (Ukraine)


Published in SPIE Proceedings Vol. 6254:
Seventh International Conference on Correlation Optics

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