Results 291 to 300 of about 574,951 (322)
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Diversity selection for phase-diverse phase retrieval
Journal of the Optical Society of America A, 2003Wavefront-sensing performance is assessed for focus-diverse phase retrieval as the aberration spatial frequency and the diversity defocus are varied. The analysis includes analytical predictions for optimal diversity values corresponding to the recovery of a dominant spatial-frequency component in the pupil.
Bruce H, Dean, Charles W, Bowers
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Phase-space interpretation of deterministic phase retrieval
Journal of the Optical Society of America A, 2004Deterministic phase retrieval is reinterpreted in terms of phase-space optics. A novel derivation of the transport-of-intensity equation is presented based on the Wigner distribution function and the ambiguity function. The phase retrieval problem is formulated as estimating the local first-order moment of the Wigner function from intensity information.
Andrey, Semichaevsky, Markus, Testorf
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Phase retrieval by pinhole scanning
Optics Letters, 2011We describe a method where phase and amplitude of a wavefront are obtained by processing a sequence of pattern produced by the interference between the light transmitted by a scanning pinhole (which is sequentially shifted) and a reference pinhole. Simulations and experimental results are presented.
Giancarlo, Pedrini +2 more
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2017 International Conference on Sampling Theory and Applications (SampTA), 2017
In this letter we construct frames consisting of 5d − 4 vectors that enable a both uniform and tractable recovery for the phase retrieval problem in ℂd.
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In this letter we construct frames consisting of 5d − 4 vectors that enable a both uniform and tractable recovery for the phase retrieval problem in ℂd.
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Ptychographical Phase Retrieval
2009Mc 2009. Microscopy Conference, Graz, Austria. 30 August - 4 September 2009. First Joint Meeting Of Dreiländertagung And Multinational Congress On Microscopy.
Maiden, Andrew, Rodenburg, John
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Weaving Phase Retrieval and Weaving Norm Retrieval
International Journal of Applied and Computational Mathematics, 2022Suman Dowerah, Saikat Mukherjee
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Optics Communications, 1989
A new algorithm is given for inverting an autocorrelation function R = R1,…,Rn for its inputs a. The autocorrelation of a function a may be regarded as the cross correlation between two functions b and a, where b = a. This is made the basis for a cyclic algorithm. In the cross-correlation operation b ⊗ a, make b a numerical guess at a, and leave a as a
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A new algorithm is given for inverting an autocorrelation function R = R1,…,Rn for its inputs a. The autocorrelation of a function a may be regarded as the cross correlation between two functions b and a, where b = a. This is made the basis for a cyclic algorithm. In the cross-correlation operation b ⊗ a, make b a numerical guess at a, and leave a as a
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2017
Phase retrieval and phaseless reconstruction for Hilbert space frames is a very active area of research. Recently, it was shown that these concepts are equivalent. In this paper, we make a detailed study of a weakening of these concepts to weak phase retrieval and weak phaseless reconstruction.
Sara Botelho-Andrade +4 more
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Phase retrieval and phaseless reconstruction for Hilbert space frames is a very active area of research. Recently, it was shown that these concepts are equivalent. In this paper, we make a detailed study of a weakening of these concepts to weak phase retrieval and weak phaseless reconstruction.
Sara Botelho-Andrade +4 more
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Phase Retrieval and Magnitude Retrieval of Entire Functions
Journal of Fourier Analysis and Applications, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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