Results 11 to 20 of about 16,724,170 (299)

Changing image of correlation optics: introduction [PDF]

open access: yesApplied Optics, 2016
This feature issue of Applied Optics contains a series of selected papers reflecting recent progress of correlation optics and illustrating current trends in vector singular optics, internal energy flows at light fields, optical science of materials, and new biomedical applications of lasers.
Angelsky, Oleg V.   +7 more
openaire   +2 more sources

Ghost Imaging Using Optical Correlations [PDF]

open access: yesLaser & Photonics Reviews, 2017
Abstract Ghost imaging uses optical correlations to enable an alternative and intriguing image acquisition technique: even though information from either one of the detectors used for the acquisition does not yield an image, an image can be obtained by harnessing the optical correlations.
Moreau, Paul-Antoine   +3 more
openaire   +2 more sources

Image correlators using optical memory disks [PDF]

open access: yesOptics Letters, 1989
Image correlators are described and experimentally demonstrated that are implemented using optical memory disks to store a large library of reference images.
NEIFELD, M.A., YAMAMURA, A., PSALTIS, D.
openaire   +3 more sources

Vector Angular Continuity in the Fusion of Coseismic Deformations at Multiple Optical Correlation Scales

open access: yesSensors, 2023
As one of the common techniques for measuring coseismic deformations, optical image correlation techniques are capable of overcoming the drawbacks of inadequate coherence and phase blurring which can occur in radar interferometry, as well as the problem ...
Rui Guo, Qiming Zeng, Shangzong Lu
doaj   +1 more source

Image correlation method for DNA sequence alignment. [PDF]

open access: yesPLoS ONE, 2012
The complexity of searches and the volume of genomic data make sequence alignment one of bioinformatics most active research areas. New alignment approaches have incorporated digital signal processing techniques.
Millaray Curilem Saldías   +4 more
doaj   +1 more source

Gradient-Descent-like Ghost Imaging

open access: yesSensors, 2021
Ghost imaging is an indirect optical imaging technique, which retrieves object information by calculating the intensity correlation between reference and bucket signals.
Wen-Kai Yu   +4 more
doaj   +1 more source

Optical surface evaluation by correlating bi-Ronchigram images [PDF]

open access: yesOptical Engineering, 2014
By correlating bi-Ronchigram images, surface errors without any supposed symmetry are evaluated. No approximation and interference orders are needed. First, only one experimental bi-Ronchigram (Ronchigram with a square grid) image was recorded. Second, given a surface parameter set (curvature radius, conic constant, and/or symmetric and asymmetric ...
Alberto Cordero-Davila   +1 more
openaire   +2 more sources

Assessment of digital image correlation measurement errors: methodology and results [PDF]

open access: yes, 2009
Optical full-field measurement methods such as Digital Image Correlation (DIC) are increasingly used in the field of experimental mechanics, but they still suffer from a lack of information about their metrological performances. To assess the performance
Vacher, Pierre   +14 more
core   +1 more source

Image Quality Assessment for Digital Volume Correlation-Based Optical Coherence Elastography

open access: yesPhotonics, 2022
Optical coherence elastography (OCE) based on digital volume correlation (DVC) has the advantages of full 3D displacements and strain tensor quantification.
Xianglong Lin   +6 more
doaj   +1 more source

Quantifying and visualising change: strain monitoring of tapestries with digital image correlation [PDF]

open access: yes, 2013
A three-year research project at the University of Southampton (2007–2010) investigated whether monitoring techniques commonly used by engineers to assess the strength and durability of materials could be usefully applied to inform the condition ...
Lennard, F.J.   +3 more
core   +1 more source

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