Optical Correlators for Cryptosystems and Image Recognition: A Review
Optical correlators are efficient optical systems that have gained a wide range of applications both in image recognition and encryption, due to their special properties that benefit from the optoelectronic setup instead of an all-electronic one. This paper presents, to the best of our knowledge, the most extensive review of optical correlators to date.
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Demodulation of Spatial Carrier Images: Performance Analysis of Several Algorithms Using a Single Image [PDF]
http://link.springer.com/article/10.1007%2Fs11340-013-9741-6#Optical full-field techniques have a great importance in modern experimental mechanics.
Esquis, P. +19 more
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High optical contrast nanoimprinted speckle patterns for digital image correlation analysis
For the characterization of the mechanical deformation of materials at microscopic length scales, image processing of a high-quality surface pattern was used.
E.C. Kursun +4 more
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Multi-resolution, multi-sensor image fusion: general fusion framework [PDF]
Multi-resolution image fusion also known as pansharpening aims to include spatial information from a high resolution image, e.g. panchromatic or Synthetic Aperture Radar (SAR) image, into a low resolution image, e.g.
Palubinskas, Gintautas +3 more
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Study of image characteristics on digital image correlation error assessment [PDF]
In this paper, errors related to digital image correlation (DIC) technique applied to measurements of displacements are estimated. This work is based on the generation of synthetic images representative of real speckle patterns.
Fazzini, Marina +7 more
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River Surface Velocimetry Based on Virtual River Dataset and Modulated-RAFT
In recent years, there has been a surge of interest in image-based velocimetry methods for river surface velocity (RSV) estimation due to their efficiency and accuracy, including large-scale particle image velocimetry (LSPIV), space-time image ...
Yixin Wu +5 more
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Results of the Optical Downlink Experiment KIODO from OICETS Satellite to Optical Ground Station Oberpfaffenhofen (OGS-OP) [PDF]
Optical LEO downlinks from the Japanese OICETS to the optical ground station built by the German Aerospace Center (DLR) near Munich have been performed. This was the first optical LEO downlink on European grounds.
Perlot, Nicolas +13 more
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Objective speckle velocimetry for autonomous vehicle odometry [PDF]
Speckle velocimetry is investigated as a means of determining odometry data with potential for application on autonomous robotic vehicles. The technique described here relies on the integration of translation measurements made by normalized cross ...
Charrett, Thomas O. H. +3 more
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Applications of polymer optical fibre grating sensors to condition monitoring of textiles [PDF]
Fibre Bragg gratings (FBGs) in polymer optical fibres (POFs) have been used to measure the strain in a woven textile. FBGs in both POFs and silica optical fibres were attached to a woven textile specimen, and their performance characterised.
Ye, Chen Chun +29 more
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Geometrical optics in correlated imaging systems [PDF]
We discuss the geometrical optics of correlated imaging for two kinds of spatial correlations corresponding, respectively, to a classical thermal light source and a quantum two-photon entangled source. Due to the different features in the second-order spatial correlation, the two sources obey different imaging equations.
De-Zhong Cao, Jun Xiong, Kaige Wang
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