Results 221 to 230 of about 1,097,686 (233)
Some of the next articles are maybe not open access.
Algorithm based on the optimal block zonal strategy for fast wavefront reconstruction.
Applied Optics, 2020Fast wavefront reconstruction is crucial for improving the temporal frequency of adaptive optics systems, in which a mass of subapertures is used. In this paper, we present a novel block zonal reconstruction algorithm based on Southwell geometry to speed
Zhongye Ji +4 more
semanticscholar +1 more source
Convolutional neural network for improved event-based Shack-Hartmann wavefront reconstruction.
Applied OpticsShack-Hartmann wavefront sensing is a technique for measuring wavefront aberrations, whose use in adaptive optics relies on fast position tracking of an array of spots.
Mitchell Grose +2 more
semanticscholar +1 more source
Wavefront reconstruction with the cone sensor
Image and Vision Computing New Zealand, 2020Wavefronts of light from celestial objects are aberrated by Earth’s evolving atmosphere, causing images captured by ground-based telescopes to be distorted.
R. Clare, B. Engler, S. Weddell
semanticscholar +1 more source
Wavefront reconstruction and prediction with convolutional neural networks
Astronomical Telescopes + Instrumentation, 2018While deep learning has led to breakthroughs in many areas of computer science, its power has yet to be fully exploited in the area of adaptive optics (AO) and astronomy as a whole.
Robin Swanson +4 more
semanticscholar +1 more source
Optics Letters, 2018
A fast and accurate wavefront reconstruction method for two-frame phase-shifting interferometry is proposed. The unknown phase step between the two interferograms is estimated directly by solving a quartic polynomial equation, and then the phase map is ...
Z. Cheng, Dong Liu
semanticscholar +1 more source
A fast and accurate wavefront reconstruction method for two-frame phase-shifting interferometry is proposed. The unknown phase step between the two interferograms is estimated directly by solving a quartic polynomial equation, and then the phase map is ...
Z. Cheng, Dong Liu
semanticscholar +1 more source
Moment-based wavefront reconstruction via a defocused Shack–Hartmann sensor
Optical Engineering: The Journal of SPIE, 2018. An approach for wavefront reconstruction based on a defocused Shark–Hartmann sensor is proposed. In this approach, not only the first-order origin moment (local slope of the input wavefront) but also the second-order central moment (local curvature of ...
Fan Feng, Changwei Li, Sijiong Zhang
semanticscholar +1 more source
Wavefront reconstruction method based on far-field information and convolutional neural network
, 2021Shi Zongjia +9 more
semanticscholar +1 more source
Wavefront reconstruction based on multi-directional orthogonal lateral shearing interferometry
Applied physics BYahui Zhu +3 more
semanticscholar +1 more source