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Proceedings Paper

On Optimal Holographic Filters
Author(s): R. Gonsalves; R. Dumais; P. Considine
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Paper Abstract

Vander Lugt (Ref. 1) introduced the use of holograms as frequency plane masks in spatial filtering applications. The technique produces the convolution of an input spatial scene s(x) with a convolving function a(x) by placing a hologram in the Fourier transform plane of a coherent optical processor. The hologram is a photograph of a reference beam and the Fourier trans form- H(f) of a spatial mask function h(x). The filtered scene is realized as an off-axis spatial signal. See Figure 1.

Paper Details

Date Published: 1 October 1974
PDF: 5 pages
Proc. SPIE 0045, Coherent Optics in Mapping, (1 October 1974); doi: 10.1117/12.953975
Show Author Affiliations
R. Gonsalves, EIKONIX corporation (United States)
R. Dumais, EIKONIX corporation (United States)
P. Considine, EIKONIX corporation (United States)

Published in SPIE Proceedings Vol. 0045:
Coherent Optics in Mapping
N. Balasubramanian; Robert D. Leighty, Editor(s)

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