Results 11 to 20 of about 6,108,061 (222)

Lens-free motion analysis via neuromorphic laser speckle imaging.

open access: yesOptics Express, 2022
Laser speckle imaging (LSI) is a powerful tool for motion analysis owing to the high sensitivity of laser speckles. Traditional LSI techniques rely on identifying changes from the sequential intensity speckle patterns, where each pixel performs ...
Zhou Ge   +4 more
semanticscholar   +1 more source

Laser speckle imaging for early detection of microbial colony forming units.

open access: yesBiomedical Optics Express, 2021
In this study, an optical contactless laser speckle imaging technique for the early identification of bacterial colony-forming units was tested. The aim of this work is to compare the laser speckle imaging method for the early assessment of microbial ...
Ilya Balmages   +5 more
semanticscholar   +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
semanticscholar   +1 more source

Semi‐supervised classification of fundus images combined with CNN and GCN

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Diabetic retinopathy (DR) is one of the most serious complications of diabetes, which is a kind of fundus lesion with specific changes. Early diagnosis of DR can effectively reduce the visual damage caused by DR. Due to the variety and different morphology of DR lesions, automatic classification of fundus images in mass screening can ...
Sixu Duan   +8 more
wiley   +1 more source

Dynamics of isoflurane-induced vasodilation and blood flow of cerebral vasculature revealed by multi-exposure speckle imaging

open access: yesJournal of Neuroscience Methods, 2020
Background Anesthetized animal models are used extensively during neurophysiological and behavioral studies despite systemic effects from anesthesia that undermine both accurate interpretation and translation to awake human physiology.
C. Sullender   +4 more
semanticscholar   +1 more source

Real-time monitoring of bacterial growth kinetics in suspensions using laser speckle imaging

open access: yesScientific Reports, 2020
In microbiology, monitoring the growth of any microorganism in culture is important for studying and optimizing the growth kinetics, the biomass and the metabolite production.
Hadi Loutfi   +6 more
semanticscholar   +1 more source

Multifunctional laser speckle imaging.

open access: yesBiomedical Optics Express, 2020
We have developed a multi-functional laser speckle imaging system, which can be operated in both the surface illumination laser speckle contrast imaging (SI-LSCI) mode and the line scan laser speckle contrast imaging (LS-LSCI) mode.
E. Du   +3 more
semanticscholar   +1 more source

Laser Speckle Imaging

open access: yesDefinitions, 2020
A noninvasive, non-scanning optical imaging technique that provides full-field visualization of blood flow to the tissue being imaged, which provides information about tissue perfusion and the efficiency of disease treatment.

semanticscholar   +1 more source

Detecting Unresolved Binaries in TESS Data with Speckle Imaging [PDF]

open access: yesAstronomical Journal, 2018
The Transiting Exoplanet Survey Satellite (TESS) is conducting a two-year wide-field survey searching for transiting exoplanets around nearby bright stars that will be ideal for follow-up characterization. To facilitate studies of planet compositions and
R. Matson, S. Howell, D. Ciardi
semanticscholar   +1 more source

Intraoperative Tissue Perfusion Measurement by Laser Speckle Imaging: A Potential Aid for Reducing Postoperative Complications in Free Flap Breast Reconstruction

open access: yesPlastic and Reconstructive Surgery, 2019
Summary: Adequate tissue perfusion is essential to minimize postoperative complications following microsurgery. Intraoperative knowledge of tissue perfusion could aid surgical decision-making and result in reduced complications.
Cynthia To   +6 more
semanticscholar   +1 more source

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