Modification algorithms for improving the performance of holographically stored multiplexed correlation filters

Jehad Khoury; Peter D. Gianino; Charles L. Woods

doi:10.1117/1.602483

1 May 2000 Modification algorithms for improving the performance of holographically stored multiplexed correlation filters

Jehad Khoury, Peter D. Gianino, Charles L. Woods

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Optical Engineering, Vol. 39, Issue 5, (May 2000). https://doi.org/10.1117/1.602483

Several filter algorithms are developed for the purpose of modifying the transmissivity of many matched filters multiplexed onto one hologram. Each algorithm optimizes, or approximately optimizes, a specified performance metric. Four pages of images are multiplexed onto a thin hologram, each page having nine binary images. Computer simulation indicates that some algorithms operate over a wide range of obscurations (down to about 5% of the original image), while others have restricted operating ranges. This process has application to both associative memories and correlation. Two new optical schemes are also proposed that can implement two of these modification filters.

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Jehad Khoury, Peter D. Gianino, and Charles L. Woods "Modification algorithms for improving the performance of holographically stored multiplexed correlation filters," Optical Engineering 39(5), (1 May 2000). https://doi.org/10.1117/1.602483

Published: 1 May 2000

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KEYWORDS

Multiplexing

Optical filters

Image filtering

Content addressable memory

Distortion

Optical correlators

Algorithm development

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