Results 21 to 30 of about 3,369,715 (200)

Turbulence-free computational ghost imaging

open access: yes, 2022
Turbulence-free images cannot be produced by conventional computational ghost imaging because calculated light is not affected by the same atmospheric turbulence as real light. In this article, we first addressed this issue by measuring the photon number
Yuge Li (13511948)   +3 more
core   +1 more source

Multi-wavelength compressive computational ghost imaging

open access: yes, 2013
The field of ghost imaging encompasses systems which can retrieve the spatial information of an object through correlated measurements of a projected light field, having spatial resolution, and the associated reected or trans-mitted light intensity ...
Padgett, M.J.   +4 more
core   +5 more sources

Circuit-Based Modular Implementation of Quantum Ghost Imaging

open access: yesIEEE Access, 2020
Although promising in terms of its applications in many facets of science and engineering; notably, in laser technology and remote sensing, ghost imaging is primarily impeded by its intense demands related to computational overhead, which impacts on the ...
Fei Yan   +3 more
doaj   +1 more source

Neuromorphic Optical Tracking and Imaging of Randomly Moving Targets Through Dynamic Dense Scattering Media. [PDF]

open access: yesAdv Sci (Weinh)
Vision begins not with images but with change: the retina fires only when something moves, handing the brain a stream of spikes. A neuromorphic imaging system adopts the same strategy—an event sensor that sees like the retina, a spiking network that thinks like the brain—to track and reconstruct fully randomly moving targets through tissue (phantom ...
Zhang N, Nurmikko A.
europepmc   +2 more sources

Temporal Ghost Imaging by Means of Fourier Spectrum Acquisition

open access: yesIEEE Photonics Journal, 2020
Ghost imaging is a fascinating framework which constructs the image of an object by correlating measurements between received beams and reference beams, none of which carries the structure information of the object independently. Recently, by taking into
Honghao Huang   +4 more
doaj   +1 more source

Modeling and Simulations of Retina-Like Three-Dimensional Computational Ghost Imaging

open access: yesIEEE Photonics Journal, 2019
A retina-like 3-D (three-dimensional) computational ghost imaging (R-3DCGI) is proposed to obtain high resolution while maintaining high imaging efficiency.
Kaiyu Zhang   +5 more
doaj   +1 more source

Nonredundant Raman imaging using optical eigenmodes [PDF]

open access: yes, 2014
We thank funding from the UK Engineering and Physical Sciences Research Council namely grant EP/J01771X/1 and EU FP7 grant FAMOS.Various forms of imaging schemes have emerged over the last decade that are based on correlating variations in incident ...
Herrington, C. Simon   +11 more
core   +1 more source

Computational Ghost Imaging with Multiplexed Time-Varying Signals

open access: yesInternational Journal of Optics, 2020
This study proposes two methods of optical watermarking based on multiplexed time-varying signals for computational ghost imaging using the Hadamard matrices. The proposed methods can realize image fusion and dual optical encryption.
Panghe Qiu   +4 more
doaj   +1 more source

Computational temporal ghost imaging [PDF]

open access: yes, 2016
We present a very simple device, inspired by computational ghost imaging, that allows the re-trieval of a single non-reproducible, periodic or non-periodic, temporal signal.
Devaux, Fabrice   +3 more
core   +1 more source

Improvements of Computational Ghost Imaging by Using Sequenced Speckle

open access: yesApplied Sciences, 2023
This study presents a computational ghost imaging (GI) scheme that utilizes sequenced random speckle pattern illumination. The primary objective is to develop a speckle pattern/sequence that improves computational time without compromising image quality.
Sukyoon Oh   +3 more
doaj   +1 more source

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