Parallel subtraction of Fourier power spectrum using nonlinear optical techniques

Pochi Yeh; Dapeng Zhang; Claire Gu

doi:10.1117/12.58096

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.

Citation Download Citation

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); doi: 10.1117/12.58096; https://doi.org/10.1117/12.58096

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