N
Norman S. Kopeika
Researcher at Ben-Gurion University of the Negev
Publications - 371
Citations - 5452
Norman S. Kopeika is an academic researcher from Ben-Gurion University of the Negev. The author has contributed to research in topics: Image restoration & Optical transfer function. The author has an hindex of 36, co-authored 371 publications receiving 5221 citations. Previous affiliations of Norman S. Kopeika include Ariel University & University of Pennsylvania.
Papers
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Analytical method to calculate optical transfer functions for image motion and vibrations using moments
Adrian Stern,Norman S. Kopeika +1 more
TL;DR: In this paper, the optical transfer function (OTF) for image blur caused by arbitrary motion is calculated by means of the statistical moments of the motion function, and a comparison of image degradation is presented for linear and exponential motion and high-frequency vibration of the same blur extent.
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Experimental comparison of turbulence modulation transfer function and aerosol modulation transfer function through the open atmosphere
Itai Dror,Norman S. Kopeika +1 more
TL;DR: In this paper, simultaneous and independent measurements of overall atmospheric modulation transfer function (MTF) and turbulence MTF over fairly long horizontal paths at 15m average elevation indicate that, even at midday, aerosol MTF deriving from forward scatter is usually more dominant than turbulence mTF.
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Range gated active night vision system for automobiles
TL;DR: The concept of gated imaging is described and its basic advantages, including the backscatter reduction mechanism for improved vision through fog, rain, and snow, are described.
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Performance limitations of free-space optical communication satellite networks due to vibrations-analog case
Shlomi Arnon,Norman S. Kopeika +1 more
TL;DR: From the analysis it is clear that even low vibration amplitude of the satellite pointing systems decreases dramatically the network performance, and these models are the basis for pointing system design of appropriate complexity and performance to make the network as simple and inexpensive as possible.
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Wavelength variation of visible and near-infrared resolution through the atmosphere: dependence on aerosol and meteorological conditions.
TL;DR: In this paper, measurements of the square wave response over a 4.1 km near-field horizontal path were presented for different wavelength regions, and the authors confirmed the existence and wavelength dependence of the aerosol modulation transfer function predicted by R. F. Lutomirski.