Results 31 to 40 of about 3,276,689 (342)
Sensors, 2021 We propose an imaging method based on optical fiber bundle combined with micro-scanning technique for improving image quality without complex image reconstruction algorithms.
Jiali Jiang +11 more
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, 2020 This tutorial describes the principles and practical implementation of sensorless adaptive optics.
Hampson, Karen Mary +3 more
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IEEE Photonics Journal, 2023 Atmospheric dispersion is a wavelength-dependent effect that affects astronomical observations performed using ground-based telescopes. The effect of atmospheric dispersion for a 4-meter telescope is analyzed and an atmospheric dispersion corrector (ADC)
Guoqing Gao +5 more
doaj +1 more source
Atmospheric tomography with separate minimum variance laser and natural guide star mode control [PDF]
, 2009 This paper introduces a novel, computationally efficient, and practical atmospheric tomography wavefront control architecture with separate minimum variance laser and natural guide star mode estimation.
Ellerbroek, B. L., Gilles, L.
core +1 more source
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
An adaptive optics module for deep tissue multiphoton imaging in vivo
Nature Methods, 2020 Understanding complex biological systems requires visualizing structures and processes deep within living organisms. We developed a compact adaptive optics module and incorporated it into two- and three-photon fluorescence microscopes, to measure and ...
C. Rodríguez +10 more
semanticscholar +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
Sky coverage modeling for the whole sky for laser guide star multiconjugate adaptive optics [PDF]
, 2012 The scientific productivity of laser guide star adaptive optics systems strongly depends on the sky coverage, which describes the probability of finding natural guide stars for the tip/tilt wavefront sensor(s) to achieve a certain performance.
Andersen, David +2 more
core +1 more source
Adaptive optics in microscopy [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2007 The imaging properties of optical microscopes are often compromised by aberrations that reduce image resolution and contrast. Adaptive optics technology has been employed in various systems to correct these aberrations and restore performance. This has required various departures from the traditional adaptive optics schemes that are used in astronomy ...
openaire +4 more sources
Automated Adaptive Optics [PDF]
, 2021 Preprint of an article submitted for consideration in The WSPC Handbook of Astronomical Instrumentation http://www.worldscientific.com/worldscibooks/10.1142 ...
Baranec, Christoph +2 more
openaire +2 more sources