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Shack-Hartmann wavefront reconstruction by deep learning neural network for adaptive optics
Optical Engineering + Applications, 2023Standard methods of Shack-Hartmann wavefront reconstruction rely on solving a system of linear equations, extracting wavefront estimates from measured wavefront slopes, which are calculated by retrieving centroids from a Shack-Hartmann Wavefront Sensor ...
Zareb A. Noel +3 more
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Measurement science and technology, 2021
The Shack–Hartmann wavefront sensor (SHWFS) has been widely used for measuring aberrations in adaptive optics systems. However, its traditional wavefront reconstruction method usually has limited precision under field conditions because the weight-of ...
Hu Gu +5 more
semanticscholar +1 more source
The Shack–Hartmann wavefront sensor (SHWFS) has been widely used for measuring aberrations in adaptive optics systems. However, its traditional wavefront reconstruction method usually has limited precision under field conditions because the weight-of ...
Hu Gu +5 more
semanticscholar +1 more source
Journal of The Optical Society of America A-optics Image Science and Vision, 2021
An iterative wavefront reconstruction method using Shack-Hartmann wavefront sensor (SHWFS) measurements is presented in this paper. A new cost function for the wavefront reconstruction problem is derived and the solution is obtained iteratively using the
J. J. Kim, B. Fernández, B. Agrawal
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An iterative wavefront reconstruction method using Shack-Hartmann wavefront sensor (SHWFS) measurements is presented in this paper. A new cost function for the wavefront reconstruction problem is derived and the solution is obtained iteratively using the
J. J. Kim, B. Fernández, B. Agrawal
semanticscholar +1 more source
A Review on Wavefront Reconstruction Methods
International Conference on Information Systems and Computer Aided Education, 2021Turbulence in the atmosphere in nature leads to the change of local optical path. The imaging wavefront of starlight is constantly distorted and the energy is constantly dissipated, which eventually leads to the blurring of telescope imaging and the ...
Ke Wang, Ke-mi Xu
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Intensity-enhanced deep network wavefront reconstruction in Shack-Hartmann sensors.
Optics Letters, 2020The Shack-Hartmann wavefront sensor (SH-WFS) is known to produce incorrect measurements of the wavefront gradient in the presence of non-uniform illumination.
Theodore B. Dubose +2 more
semanticscholar +1 more source
Optics Letters
We propose an iterative optimization approach for wavefront reconstruction in a rotational shearing interferometer based on Zernike polynomials. Two incorrect shearing amounts are optimized simultaneously, enabling the absolute reconstruction of ...
Huy Vu, Tiendung Vu
semanticscholar +1 more source
We propose an iterative optimization approach for wavefront reconstruction in a rotational shearing interferometer based on Zernike polynomials. Two incorrect shearing amounts are optimized simultaneously, enabling the absolute reconstruction of ...
Huy Vu, Tiendung Vu
semanticscholar +1 more source
Applied Optics, 2020
In a standard Shack-Hartmann wavefront sensor, the number of effective lenslets is the vital parameter that limits the wavefront restoration accuracy. This paper proposes a wavefront reconstruction algorithm for a Shack-Hartmann wavefront sensor with an ...
Zhiqiang Xu +7 more
semanticscholar +1 more source
In a standard Shack-Hartmann wavefront sensor, the number of effective lenslets is the vital parameter that limits the wavefront restoration accuracy. This paper proposes a wavefront reconstruction algorithm for a Shack-Hartmann wavefront sensor with an ...
Zhiqiang Xu +7 more
semanticscholar +1 more source
Modal Wavefront Reconstruction in Rotational Shearing Interferometer by Zernike Polynomials
IEEE Photonics Technology LettersA novel approach for wavefront reconstruction in rotational shearing interferometer is proposed. The correlation between the original and rotational wavefront is represented in matrix formalism, and the Zernike coefficient of the original wavefront is ...
Tiendung Vu, Huy Vu
semanticscholar +1 more source
Applied Optics, 2020
This paper proposes a framework for the three-dimensional (3D) reconstruction of specular surfaces. The framework begins with a modified reconstruction method that uses gradient descent to accurately search for the correspondence matches in the binocular
Y. Leung, L. Cai
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This paper proposes a framework for the three-dimensional (3D) reconstruction of specular surfaces. The framework begins with a modified reconstruction method that uses gradient descent to accurately search for the correspondence matches in the binocular
Y. Leung, L. Cai
semanticscholar +1 more source
Applied Optics, 2020
Lateral shearing interferometry is widely applied in wavefront sensing, optical components testing, and defect inspection. The procedure of reconstructing the wavefront is the most specific difference between lateral shearing interferometry and other ...
Peng Li, Feng Tang, Xiang-zhao Wang
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Lateral shearing interferometry is widely applied in wavefront sensing, optical components testing, and defect inspection. The procedure of reconstructing the wavefront is the most specific difference between lateral shearing interferometry and other ...
Peng Li, Feng Tang, Xiang-zhao Wang
semanticscholar +1 more source