Non-invasive imaging through strongly scattering media based on speckle pattern estimation and deconvolution. [PDF]
Sci Rep, 2018 Imaging through scattering media is still a formidable challenge with widespread applications ranging from biomedical imaging to remote sensing. Recent research progresses provide several feasible solutions, which are hampered by limited complexity of ...
Wang Z, Jin X, Dai Q.
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Space division multiplexing in standard multi-mode optical fibers based on speckle pattern classification. [PDF]
Sci Rep, 2019 In optical communications the transmission bandwidth of single mode optical fibers is almost fully exploited. To further increase the capacity of a telecommunication link, multiplexing techniques can be applied across 5 physical dimensions: amplitude ...
Pauwels J +2 more
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A Portable Compact System for Laser Speckle Correlation Imaging of Artworks Using Projected Speckle Pattern. [PDF]
J Imaging, 2020 Artworks have a layered structure subjected to alterations caused by various factors. The monitoring of defects at sub-millimeter scale may be performed by laser interferometric techniques.
Daffara C, Marini E.
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Optical Multimode Fiber-Based Pipe Leakage Sensor Using Speckle Pattern Analysis. [PDF]
Sensors (Basel), 2023 Water is an invaluable resource quickly becoming scarce in many parts of the world. Therefore, the importance of efficiency in water supply and distribution has greatly increased.
Philosof J +4 more
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Speckle pattern processing by digital image correlation
MATEC Web of Conferences, 2016 Testing the method of speckle pattern processing based on the digital image correlation is carried out in the current work. Three the most widely used formulas of the correlation coefficient are tested.
Gubarev Fedor +3 more
doaj +2 more sources
Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern. [PDF]
Sensors (Basel), 2022 Current studies are focused on the correlation between characteristic features extracted from the laser speckle pattern of machined surfaces and 2D surface roughness parameters. Since milled surfaces are 3D in nature, 3D surface roughness parameters will
Jayabarathi SB, Ratnam MM.
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Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry. [PDF]
Sensors (Basel), 2016 A speckle interferometer which can measure whole field three-dimensional displacements continuously and dynamically has been built. Three different wavelength lasers are used to produce the speckle interferograms of the two in-plane displacements ...
Qin J, Gao Z, Wang X, Yang S.
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Assessment of the Film-Free Water Decal Method for Speckle Pattern Application in Digital Image Correlation. [PDF]
Sensors (Basel)Digital Image Correlation (DIC) often encounters challenges with variability and consistency in traditional speckle pattern application techniques, such as spray-painting, affecting measurement accuracy and reliability.
Sanchez AC, Kim DK.
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Shear wave arrival time estimates correlate with local speckle pattern. [PDF]
IEEE Trans Ultrason Ferroelectr Freq Control, 2015 We present simulation and phantom studies demonstrating a strong correlation between errors in shear wave arrival time estimates and the lateral position of the local speckle pattern in targets with fully developed speckle.
Mcaleavey SA, Osapoetra LO, Langdon J.
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A ghost imaging framework based on laser mode speckle pattern for underwater environments [PDF]
Commun EngDue to the complex physical processes found in underwater environments, such as absorption, scattering, and noise, it is challenging to obtain high-quality images using conventional camera-based imaging techniques.
Yang M, Wang P, Wu Y, Feng G.
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