Results 51 to 60 of about 947,860 (252)
ATFaceGAN: Single Face Image Restoration and Recognition from Atmospheric Turbulence [PDF]
IEEE International Conference on Automatic Face & Gesture Recognition, 2019 Image degradation due to atmospheric turbulence is common while capturing images at long ranges. To mitigate the degradation due to turbulence which includes deformation and blur, we propose a generative single frame restoration algorithm which ...
Chun Pong Lau +2 more
semanticscholar +1 more source
Vehicle-induced turbulence and atmospheric pollution
Atmospheric Chemistry and Physics, 2021 . Theoretical models of the Earth's atmosphere adhere to an underlying concept of flow driven by radiative transfer and the nature of the surface over which the flow is taking place: heat from the sun and/or anthropogenic sources are the sole sources of ...
P. Makar +6 more
semanticscholar +1 more source
Applied Sciences, 2019 Atmospheric turbulence has an impact on the transmission of electromagnetic vortex waves with an orbital angular momentum (OAM) mode. In this paper, based on the joint atmospheric turbulence model, we examine the influence of atmospheric turbulence on ...
Jingxuan Yang +4 more
doaj +1 more source
Temporal Variations of the Turbulence Profiles at the Sayan Solar Observatory Site
Atmosphere, 2019 The paper focuses on the development of the method to estimate the mean characteristics of the atmospheric turbulence. Using an approach based on the shape of the energy spectrum of atmospheric turbulence over a wide range of spatial and temporal scales,
Artem Shikhovtsev +2 more
doaj +1 more source
Eavesdropper's ability to attack a free-space quantum-key-distribution receiver in atmospheric turbulence [PDF]
Physical Review A, 2019 The ability of an eavesdropper (Eve) to perform an intercept-resend attack on a free-space quantum key distribution (QKD) receiver by precisely controlling the incidence angle of an attack laser has been previously demonstrated.
Poompong Chaiwongkhot +8 more
semanticscholar +1 more source
Applied Sciences, 2020 A concept of atmospheric turbulence characterization using laser light backscattered off a moving unresolved target or a moving target with a glint is considered and analyzed through wave-optics numerical simulations.
Victor A. Kulikov +3 more
doaj +1 more source
Direct observation of atmospheric turbulence with a video-rate wide-field wavefront sensor
Nature PhotonicsTurbulence is a complex and chaotic state of fluid motion. Atmospheric turbulence within the Earth’s atmosphere poses fundamental challenges for applications such as remote sensing, free-space optical communications and astronomical observation due to ...
Yuduo Guo +8 more
semanticscholar +1 more source
Atmospheric Turbulence-Controlled Cryptosystems
IEEE Photonics Journal, 2021 To overcome the limitations of QKD, post-quantum cryptography, and computational security-based cryptography protocols in this paper, an atmospheric turbulence-controlled cryptosystem is proposed.
Ivan B. Djordjevic
doaj +1 more source
An Atmospheric Turbulence Probe
IEEE Transactions on Geoscience and Remote Sensing, 1980 In this paper, a complete low-cost atmospheric turbulence probe, capable of measuring temperature, differential temperature, humidity, horizontal wind speed and direction, and vertical wind component is described. Special care has been taken to minimize the probe's weight so that it may be carried easily by a balloon.
Asimakopoulos, D.N. +3 more
openaire +2 more sources
Optics Express, 2019 Atmospheric transmission distortion is one of the main challenges hampering the practical application of a vortex beam (VB) which carries orbital angular momentum (OAM).
Junmin Liu +9 more
semanticscholar +1 more source