Results 31 to 40 of about 173,735 (257)
On the 2D Phase Retrieval Problem [PDF]
IEEE Transactions on Signal Processing, 2017 The recovery of a signal from the magnitude of its Fourier transform, also known as phase retrieval, is of fundamental importance in many scientific fields. It is well known that due to the loss of Fourier phase the problem in 1D is ill-posed. Without further constraints, there is no unique solution to the problem. In contrast, uniqueness up to trivial
Kogan, Dani, Eldar, Yonina C., Oron, Dan
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Revising the lower statistical limit of x-ray grating-based phase-contrast computed tomography.
PLoS ONE, 2017 Phase-contrast x-ray computed tomography (PCCT) is currently investigated as an interesting extension of conventional CT, providing high soft-tissue contrast even if examining weakly absorbing specimen.
Mathias Marschner +6 more
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A Recovery Method of Double Random Phase Encoding System With a Parallel Phase Retrieval
IEEE Photonics Journal, 2016 A novel method composed of phase retrieval is proposed to precisely recover the phase distribution in the double random phase encoding system. The model of a point light source is employed to illuminate the system, in the output side of which several ...
Zhengjun Liu +3 more
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Benchmark Problems for Phase Retrieval [PDF]
SIAM Journal on Imaging Sciences, 2018 27 pages, 10 figures, new references, modified appendix, improved ...
Veit Elser, Ti-Yen Lan, Tamir Bendory
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Fresnel Field Phase Retrieval via High-speed Phase Modulation
工程科学与技术, 2022 The multi-intensity phase retrieval methods obtain different coded diffraction patterns by changing the physical parameters in the optical imaging system, which can achieve the best convergence of phase and high-precision reconstruction without ...
Cheng ZHANG +4 more
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Algebraic Theory of Phase Retrieval
Notices of the American Mathematical Society, 2022 We introduce five specific phase retrieval setups, present known results, and delineate open mathematical questions. We conclude by discussing the limitations of the algebraic point of view, and how other mathematical fields can provide indispensable insights into the phase retrieval problem.
Tamir Bendory, Dan Edidin
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Retrieval-Induced Forgetting in a Pentylenetetrazole-Induced Epilepsy Model in the Rat
Brain Sciences, 2018 The selective retrieval of some information may lead to the forgetting of related, but non-retrieved information. This memory phenomenon is termed retrieval-induced forgetting (RIF).
Ahmad Almahozi +3 more
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Lensless Three-Dimensional Quantitative Phase Imaging Using Phase Retrieval Algorithm
Journal of Imaging, 2020 Quantitative phase imaging (QPI) techniques are widely used for the label-free examining of transparent biological samples. QPI techniques can be broadly classified into interference-based and interferenceless methods.
Vijayakumar Anand +4 more
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Enhanced Phase Retrieval Method Based on Random Phase Modulation
Applied Sciences, 2020 The phase retrieval method based on random phase modulation can wipe out any ambiguity and stagnation problem in reconstruction. However, the two existing reconstruction algorithms for the random phase modulation method are suffering from problems.
Fanxing Li +4 more
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Phase Retrieval by Linear Algebra [PDF]
SIAM Journal on Matrix Analysis and Applications, 2017 The null vector method, based on a simple linear algebraic concept, is proposed as a solution to the phase retrieval problem. In the case with complex Gaussian random measurement matrices, a non-asymptotic error bound is derived, yielding an asymptotic regime of accurate approximation comparable to that for the spectral vector method.
Pengwen Chen +2 more
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