Incoherent holographic image correlator with 2D acousto-optic deflector as input device

Yuri A. Bykovsky; Anatoly A. Markilov; Elbrus N. Eloev; Sergey N. Starikov; Mikhail V. Terekhov

doi:10.1117/12.381610

31 March 2000 Incoherent holographic image correlator with 2D acousto-optic deflector as input device

Yuri A. Bykovsky, Anatoly A. Markilov, Elbrus N. Eloev, Sergey N. Starikov, Mikhail V. Terekhov

Proceedings Volume 4043, Optical Pattern Recognition XI; (2000) https://doi.org/10.1117/12.381610
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

The scheme of the incoherent holographic correlator with two-coordinate acoustooptic deflector (AOD) for input of recognized images is presented. Because AOD forms an input image as a sequence of dynamic diffraction gratings, it allows to put a holographic filter directly behind the AOD. So, using this circumstance, the conventional scheme of incoherent holographic correlator was significantly reduced. The experimental setup of the correlator with holographic memory and monochromatic illumination is described. Experimental results on recognition of test objects with the semiconductor laser as illumination source are presented. The correlation signals are coincide with signals, received by means of computer simulation, within the limits of experimental errors. Results obtained shows that experimental setup of the incoherent holographic correlator provide real-time recognition of input images formed by two- coordinate acoustooptic deflector.

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Yuri A. Bykovsky, Anatoly A. Markilov, Elbrus N. Eloev, Sergey N. Starikov, and Mikhail V. Terekhov "Incoherent holographic image correlator with 2D acousto-optic deflector as input device", Proc. SPIE 4043, Optical Pattern Recognition XI, (31 March 2000); https://doi.org/10.1117/12.381610

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KEYWORDS

Optical correlators

Holography

Acousto-optics

Holograms

Optical filters

Computer simulations

Image filtering

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