A Variational Method of Wavefront Reconstruction from Local Slope Measurements Using a Fractional Order of Smoothness Stabilizer
Sign Up to like & getrecommendations! Published in 2019 at "Computational Mathematics and Modeling"
DOI: 10.1007/s10598-019-09444-z
Abstract: Wavefront reconstruction from local slope estimates is performed by a family of variational methods with a fractional order stabilizer designed to ensure best uniform reconstruction of the front on the entire frequency spectrum. Analytical and… read more here.
Keywords: reconstruction; wavefront reconstruction; reconstruction local; local slope ... See more keywords
High-precision wavefront reconstruction from Shack-Hartmann wavefront sensor data by a deep convolutional neural network
Sign Up to like & getrecommendations! Published in 2021 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/abf708
Abstract: 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-center calculation is affected… read more here.
Keywords: hartmann wavefront; wavefront sensor; wavefront reconstruction; shack hartmann ... See more keywords
A variational method for wavefront reconstruction from Shack–Hartman sensor measurements
Sign Up to like & getrecommendations! Published in 2017 at "Atmospheric and Oceanic Optics"
DOI: 10.1134/s1024856017040091
Abstract: A new technique is suggested for wavefront reconstruction from gradient measurements on the basis of solution of the variational problem. The spatial frequency transfer function is derived for its reconstructor. The reconstruction accuracy is studied… read more here.
Keywords: reconstruction; wavefront reconstruction; reconstruction shack; method wavefront ... See more keywords
Wavefront reconstruction of discontinuous phase objects from optical deflectometry
Sign Up to like & getrecommendations! Published in 2023 at "Applied Optics"
DOI: 10.1364/ao.484377
Abstract: One of the challenges in phase measuring deflectometry is to retrieve the wavefront from objects that present discontinuities or non-differentiable gradient fields. Here, we propose the integration of such gradients fields based on an Lp-norm… read more here.
Keywords: phase objects; reconstruction discontinuous; wavefront reconstruction; discontinuous phase ... See more keywords
Nonlinear spline wavefront reconstruction through moment-based Shack-Hartmann sensor measurements.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.011514
Abstract: We propose a spline-based aberration reconstruction method through moment measurements (SABRE-M). The method uses first and second moment information from the focal spots of the SH sensor to reconstruct the wavefront with bivariate simplex B-spline… read more here.
Keywords: moment; spline wavefront; nonlinear spline; wavefront reconstruction ... See more keywords