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The Methodology of Adaptive Levels of Interval for Laser Speckle Imaging [PDF]

open access: yesJournal of Imaging
A methodology is proposed for use in the laser speckle imaging field. This methodology modified the graphical and numerical speckle pattern imaging methods to improve their extraction and discrimination capabilities when processing the embedded temporal ...
Ali A. Al-Temeemy
doaj   +2 more sources

Deep speckle correlation: a deep learning approach toward scalable imaging through scattering media [PDF]

open access: yesOptica, 2018
Imaging through scattering is an important yet challenging problem. Tremendous progress has been made by exploiting the deterministic input–output “transmission matrix” for a fixed medium.
Yunzhe Li, Yujia Xue, Lei Tian
exaly   +3 more sources

Synthetic exposure with a CMOS camera for multiple exposure speckle imaging of blood flow [PDF]

open access: yesScientific Reports, 2022
Speckle contrast imaging is an established technique to obtain relative blood flow maps over wide fields of view. A major improvement of the method relies on the acquisition of raw speckle images at different exposure times but requires simultaneous ...
M. Chammas, F. Pain
doaj   +2 more sources

Underwater environment laser ghost imaging based on Walsh speckle patterns

open access: yesFrontiers in Physics, 2023
Underwater imaging is a challenging task because of the effects of scattering and absorption in water. Ghost imaging (GI) has attracted increasing attention because of its simple structure, long range, and achievability under weak light intensity.
Mochou Yang, Yi Wu, Guoying Feng
doaj   +1 more source

Confocal laser speckle autocorrelation imaging of dynamic flow in microvasculature

open access: yesOpto-Electronic Advances, 2022
Laser speckle imaging has been widely used for in-vivo visualization of blood perfusion in biological tissues. However, existing laser speckle imaging techniques suffer from limited quantification accuracy and spatial resolution.
E Du   +3 more
doaj   +1 more source

Line Scan Spatial Speckle Contrast Imaging and Its Application in Blood Flow Imaging

open access: yesApplied Sciences, 2021
Laser speckle imaging has been an indispensable tool for visualizing blood flow in biomedical applications. We proposed a novel design of the laser speckle imaging system, which combines confocal illumination and detection with various speckle analysis ...
E Du   +3 more
doaj   +1 more source

Extrapolated Speckle-Correlation Imaging

open access: yesIntelligent Computing, 2022
Imaging through scattering media is a longstanding issue in a wide range of applications, including biomedicine, security, and astronomy. Speckle-correlation imaging is promising for noninvasively seeing through scattering media by assuming shift ...
Yuto Endo   +3 more
doaj   +1 more source

A new simulation method for laser speckle imaging to investigate hemodynamics [PDF]

open access: yesE3S Web of Conferences, 2019
Speckle simulation is a powerful protocol to investigate the properties of speckle and evaluate image processing method. However, only static speckle images can be simulated by available methods without considering time-integrated effect of CCD.
Sang X, Li D, Chen B
doaj   +1 more source

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