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24 October 2005 Complementary approaches with and without a Fourier plane for optical image processing education
A. Márquez, C. Neipp, S. Gallego, M. Ortuño, I. Pascual, M. J. Yzuel, A. Beléndez, J. Campos
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Proceedings Volume 9664, Ninth International Topical Meeting on Education and Training in Optics and Photonics; 966410 (2005) https://doi.org/10.1117/12.2207742
Event: Ninth International Topical Meeting on Education and Training in Optics and Photonics, 2005, Marseille, France
Abstract
We present two laboratory experiments on optical image processing which show complementary modeling approaches. One experiment is based on an optical correlator, where a physical Fourier plane can be identified, and the other is based on the angular response exhibited by a volume grating (Bragg processing) where no Fourier plane is available. In the correlator the frequency content can be visualized as intensity variations in the Fourier plane, whereas in Bragg processing the angular plane waves decomposition of the object is the intuitive approach. Then we have two different approaches to synthesize the transfer function of the system. The combination of the two experiments in a student's lab helps for a deeper understanding of optical image processing, its linear systems mathematical background, and some aspects of volume holography.
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A. Márquez, C. Neipp, S. Gallego, M. Ortuño, I. Pascual, M. J. Yzuel, A. Beléndez, and J. Campos "Complementary approaches with and without a Fourier plane for optical image processing education", Proc. SPIE 9664, Ninth International Topical Meeting on Education and Training in Optics and Photonics, 966410 (24 October 2005); https://doi.org/10.1117/12.2207742
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KEYWORDS
Image processing
Optical correlators
Diffraction gratings
Image filtering
Image transmission
Optical filters
Volume holography
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