Adaptive correlation image processing by collinear optical heterodyning

Eugeny Ruvimovich Tsvetov

doi:10.1117/12.262575

27 December 1996 Adaptive correlation image processing by collinear optical heterodyning

Eugeny Ruvimovich Tsvetov

Proceedings Volume 2969, Second International Conference on Optical Information Processing; (1996) https://doi.org/10.1117/12.262575
Event: Second International Conference on Optical Information Processing, 1996, St. Petersburg, Russian Federation

Abstract

An optical heterodyne correlator, in which the functions of overlapping and scanning by reference image relatively signal image are realized with the hologram lens scanner in the plane of joint FOurier transform is described. An adaptive filtration of spatial frequency signs of input images may be implemented by matrix of rf photodetectors with summarized rf outputs and tunable sensitivity or by computer controlled spatial light modulator placed in images FOurier plane in front of photocathode.

Citation Download Citation

Eugeny Ruvimovich Tsvetov "Adaptive correlation image processing by collinear optical heterodyning", Proc. SPIE 2969, Second International Conference on Optical Information Processing, (27 December 1996); https://doi.org/10.1117/12.262575

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