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phase recovery and holographic image reconstruction using deep learning in neural networks

Light(Science & Applications) 2017年第1期6卷 192-200页

作者： Yair Rivenson Yibo Zhang Harun Günaydın Da Teng Aydogan Ozcan Electrical and Computer Engineering Department University of CaliforniaLos AngelesCA 90095USA Bioengineering Department University of CaliforniaLos AngelesCA 90095USA California NanoSystems Institute(CNSI) University of CaliforniaLos AngelesCA 90095USA Computer Science Department University of CaliforniaLos AngelesCA 90095USA Department of Surgery David Geffen School of MedicineUniversity of CaliforniaLos AngelesCA 90095USA

phase recovery from intensity-only measurements forms the heart of coherent imaging techniques and *** this study,we demonstrate that a neural network can learn to perform phase recovery and holographic image reconstruction after appropriate *** deep learning-based approach provides an entirely new framework to conduct holographic imaging by rapidly eliminating twin-image and self-interference-related spatial *** neural network-based method is fast to compute and reconstructs phase and amplitude images of the objects using only one hologram,requiring fewer measurements in addition to being computationally *** validated this method by reconstructing the phase and amplitude images of various samples,including blood and Pap smears and tissue *** results highlight that challenging problems in imaging science can be overcome through machine learning,providing new avenues to design powerful computational imaging systems.

关键词： deep learning holography machine learning neural networks phase recovery

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Digital signal processing for coherent multi-level modulation formats

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Chinese Optics Letters 2010年第9期8卷 863-870页

作者： Xiang Zhou AT&T Labs-Research 200 Laurel Ave South Middletown NJ 07748 USA

This paper presents a review on the recent progress of digital signal processing （DSP） in the high-speed optical transmission system using single-carrier based multi-level modulation formats. The principle of several digital phase and polarization tracking algorithms recently proposed and demonstrated for future spectrally-efficient optical transmission system are discussed in detail. A novel DSP-based interference mitigation algorithm for the single-ended coherent receiver has been included. Recent technology advance on transmitter-side DSP such as digital pulse-shaping, pre-equalization and digital nonlinear compensation has also been discussed.

关键词： Coherent receivers Dense wavelength division multiplexing Optical signals phase recovery Polarization division multiplexing Signal processing

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Correlation Holography with A Single-Pixel Detector:A Review

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激光与光电子学进展 2021年第10期58卷 140-157页

作者： Tushar Sarkar Aditya Chandra Mandal Chen Ziyang Pu Jixiong Rakesh Kumar Singh Department of Physics Indian Institute of Technology(Banaras Hindu University)Varanasi221005India Department of Mining Engineering Indian Institute of Technology(Banaras Hindru University)Varanasi221005India College of Information Science and Engineering Fujian Provincial Key Laboratory of Light Propagation and TransformationHuaqiao UniversityXiamenFujian 361021China

Correlation holography uses incoherent light to reconstruct *** technique reconstructs objects as distributions of two-point coherence function rather than using optical fields,as in conventional *** basic principle of correlation holography is derived from the van Cittert--Zernike theorem and relies on the similarity between the optical field and the coherence *** implementation of the correlation holography techniques requires a field or intensity interferometer,and fringe analysis and crosscovariance measurement in these interferometers require a conventional camera with array *** the availability of digitally controlled diffractive elements,it is possible to replace the incoherent light source,such as a rotating ground glass,with a digital source loaded with the random patterns in *** strategies ease the burden on the detector and allow for correlation holography with a single-pixel detector(SPD)to be *** review paper discusses a close connection between digital holography and correlation *** principles of correlation holography with the SPD are reviewed in detail,and the advantages of using digital sources to mimic incoherent illumination in the correlation holography are examined in the context of three-dimensional and complex field imaging.

关键词： imaging systems correlation holography singlepixel detector digital holography coherence optics phase recovery

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