11 October 2010 Amplitude holographic LPCC filters for 4-f correlator: variants of binary realization
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Invariant correlation filters application is the method to achieve invariance of image recognition in presence of input object distortions. Composite filter with linear phase coefficients (LPCC filter) is one of the perspective types of correlation filters. LPCCF can be realized in a scheme of optoelectronic Vander Lught's correlator as synthesized holographic filters for recognition in real time conditions. Application of binary spatial light modulators for realization of holographic LPCCF is especially interesting. Variants of "pixel to pixel" binarization methods or representation of grayscale gradation using binary "subpixel" raster can be used for binary representation of the initial hologram. The results of correlation recognition with binary amplitude holographic LPCCF application are represented in the paper.
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N. N. Evtikhiev, N. N. Evtikhiev, E. Yu. Zlokazov, E. Yu. Zlokazov, S. N. Starikov, S. N. Starikov, R. S. Starikov, R. S. Starikov, D. V. Shaulskiy, D. V. Shaulskiy, "Amplitude holographic LPCC filters for 4-f correlator: variants of binary realization", Proc. SPIE 7835, Electro-Optical Remote Sensing, Photonic Technologies, and Applications IV, 78350M (11 October 2010); doi: 10.1117/12.864457; https://doi.org/10.1117/12.864457

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