Parallel multichannel optical correlator for frequency subband decomposition

J. Barbe; Juan Campos; Claudio C. Iemmi; Josep Nicolas

doi:10.1117/12.437127

14 August 2001 Parallel multichannel optical correlator for frequency subband decomposition

J. Barbe, Juan Campos, Claudio C. Iemmi, Josep Nicolas

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Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437127
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

Many applications require a complex processing, using for it a bank of filters. Different architectures have been proposed of optical processors to perform a parallel filtering. We prose a new multichannel architecture based in the translation Fourier Transform properties. These properties allowed us to design multichannels phase filters. The architecture does not need the introduction of any additional modification in the optical processor. We developed an application for texture classification in real time. We obtain excellent results in the texture classification process, 99 percent of images have been correctly classified.

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J. Barbe, Juan Campos, Claudio C. Iemmi, and Josep Nicolas "Parallel multichannel optical correlator for frequency subband decomposition", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437127

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KEYWORDS

Image filtering

Image classification

Filtering (signal processing)

Optical filters

Optical correlators

Linear filtering

Fourier transforms

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