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This article is cited in 5 scientific papers (total in 5 papers)
Holographic memory
Detection of correlated fragments in a sequence of images by superimposed Fourier holograms
A. V. Pavlov St. Petersburg State University of Information Technologies, Mechanics and Optics
Abstract:
The problem of detecting correlated fragments in a sequence of images recorded by the superimposing holograms within the Fourier holography scheme with angular multiplication of a spatially modulated reference beam is considered. The approach to the solution of this problem is based on the properties of the variance of the image sum. It is shown that this problem can be solved by providing a constant distance between the signal and reference images when recording superimposed holograms and a partial mutual correlatedness of reference images. The detection efficiency is analysed from the point of view of estimated image data capacity, the degree of mutual correlation of reference images, and the hologram recording conditions. The results of a numerical experiment under the most complicated conditions (representation of images by realisations of homogeneous random fields) confirm the theoretical conclusions.
Keywords:
superimposed holograms, multipole hologram, holographic memory, Fourier holography, data processing, correlation, sequence of images, detection of correlated fragments.
Received: 25.02.2016 Revised: 13.06.2016
Citation:
A. V. Pavlov, “Detection of correlated fragments in a sequence of images by superimposed Fourier holograms”, Kvantovaya Elektronika, 46:8 (2016), 759–765 [Quantum Electron., 46:8 (2016), 759–765]
Linking options:
https://www.mathnet.ru/eng/qe16438 https://www.mathnet.ru/eng/qe/v46/i8/p759
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Abstract page: | 188 | Full-text PDF : | 35 | References: | 37 | First page: | 12 |
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