Results 21 to 30 of about 1,424,437 (265)
No-Reference Quality Assessment of Extended Target Adaptive Optics Images Using Deep Neural Network
Sensors, 2023 This paper proposes a supervised deep neural network model for accomplishing highly efficient image quality assessment (IQA) for adaptive optics (AO) images.
Guoqing Gao +7 more
doaj +1 more source
Size of the halo of the adaptive optics PSF
, 2022 Paper 844725It is a widely accepted conjecture that the width of the incoherent halo in an adaptive optics point-spread function (PSF) should decrease with the level of correction.
Gladysz, Szymon +7 more
core +1 more source
Shack–Hartmann Wavefront Sensing Based on Four-Quadrant Binary Phase Modulation
Photonics, 2022 Aiming at the problem that it is difficult for the conventional Shack–Hartmann wavefront sensor to achieve high-precision wavefront reconstruction with low spatial sampling, a kind of Shack–Hartmann wavefront sensing technology based on four-quadrant ...
Mengmeng Zhao +7 more
doaj +1 more source
Object-oriented Matlab adaptive optics toolbox [PDF]
, 2014 Object-Oriented Matlab Adaptive Optics (OOMAO) is a Matlab toolbox dedicated to Adaptive Optics (AO) systems. OOMAO is based on a small set of classes representing the source, atmosphere, telescope, wavefront sensor, Deformable Mirror (DM) and an imager ...
Correia, C +3 more
core +1 more source
The Giant Magellan Telescope adaptive optics program [PDF]
, 2016 The Giant Magellan Telescope adaptive optics system will be an integral part of the telescope, providing laser guide star generation, wavefront sensing, and wavefront correction to most of the currently envisioned instruments.
Arcidiacono, Carmelo +18 more
core +1 more source
Integrated modeling of the GMT laser tomography adaptive optics system [PDF]
, 2014 Laser Tomography Adaptive Optics (LTAO) is one of adaptive optics systems planned for the Giant Magellan Telescope (GMT). End-to-end simulation tools that are able to cope with the complexity and computational burden of the AO systems to be installed on ...
Piatrou, Piotr, Piotr Piatrou
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A High-Frequency Wavefront Aberration Correction Method Based on Slope Fitting Prediction
IEEE Photonics JournalA high-frequency wavefront aberration correction method based on slope fitting prediction is proposed to overcome bandwidth limitations caused by time delays.
Lingxi Kong +7 more
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An Image-Based Alignment Errors Correction Method for Segmented Fresnel Primary Mirror
IEEE Photonics Journal, 2020 The alignment errors correction of segmented Fresnel primary mirror in multiple imaging scenes is simulated. Based on the linear relationship between five kinds of alignment errors and modulation transfer function metric or image frequency domain metric,
Licheng Zhu +5 more
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IEEE Photonics Journal, 2021 Coherent beam combination of fiber laser phased array is a promising technique to achieve high-brightness laser output. In this paper, we focus on central-lobe energy enhancement of the combined beam in the far-field by theoretically and experimentally ...
Jing Zuo +11 more
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IEEE Photonics JournalStabilization of optical beams has always been a key factor affecting the performance of many optical systems. The Adaptive optics (AO) beam stabilization system requires further development to cope with increasingly complex application scenarios and ...
Sicheng Guo +6 more
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