Paper
1 April 1992 Parallel subtraction of Fourier power spectrum using nonlinear optical techniques
Pochi Yeh, Dapeng Zhang, Claire Gu
Author Affiliations +
Proceedings Volume 1626, Nonlinear Optics III; (1992) https://doi.org/10.1117/12.58096
Event: OE/LASE '92, 1992, Los Angeles, CA, United States
Abstract
We review some earlier work on parallel image subtraction and present new experimental results on shift-invariant parallel subtraction of the Fourier power spectrum of two images. The subtraction is achieved by employing a real-time holographic Mach-Zehnder interferometer with a photorefractive crystal.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pochi Yeh, Dapeng Zhang, and Claire Gu "Parallel subtraction of Fourier power spectrum using nonlinear optical techniques", Proc. SPIE 1626, Nonlinear Optics III, (1 April 1992); https://doi.org/10.1117/12.58096
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Cited by 2 scholarly publications.
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KEYWORDS
Crystals

Beam splitters

Mirrors

Nonlinear optics

Nonlinear crystals

Phase conjugation

Fourier transforms

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