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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Journal ArticleDOI
Deep Learning for Improving Performance of OOK Modulation Over FSO Turbulent Channels
Laialy Darwesh,Norman S. Kopeika +1 more
TL;DR: This paper presents a new detection method of on-off keying (OOK) modulated signals by using different models of DL over different strength FSO turbulent channels, without the need for prior knowledge of the parameters of the channel.
Journal ArticleDOI
Target acquisition modeling for contrast-limited imaging: effects of atmospheric blur and image restoration
TL;DR: In this paper, Johnson et al. considered the incorporation of atmospheric aerosol and turbulence effects into visible, near-infrared, and thermal infrared target acquisition modeling and showed how the target acquisition probabilities and, conversely, the ranges at which objects can be detected are changed by the inclusion of atmospheric effects.
Patent
Method and apparatus for the restoration of images degraded by mechanical vibrations
TL;DR: In this paper, a method and apparatus to restore images degraded by motion or vibration is described, characterized by the measurement of the relative motion between the object and the imaging device, calculation of the Optical Transfer Function (OTF) from the Line Spread Function (LSF), and applying a restoration filter M according to the following rule.
Proceedings ArticleDOI
Imaging through the atmosphere: practical instrumentation-based theory and verification of aerosol MTF
Dan Sadot,Norman S. Kopeika +1 more
TL;DR: In this article, a practical instrumentation-based atmospheric aerosol MTF approach based on radiative transfer theory is proposed, which takes into account the effect of finite field-of-view, finite dynamic sensitivity, and finite spatial bandwidth of every existing imaging system.
Journal ArticleDOI
Effects of absorption on image quality through a particulate medium
Dan Sadot,Norman S. Kopeika +1 more
TL;DR: In contradiction to the conventional concept that absorption gives rise to constant attenuation, it is shown here that the particulate-absorbed irradiance is spatial frequency dependent.