Exploring TEM Coherence Properties via Speckle Contrast Analysis in Coherent Electron Scattering of Amorphous Material [PDF]
Nanomaterials, 2023 We investigate the coherence properties of a transmission electron microscope by analyzing nano-diffraction speckles originating from bulk metallic glass. The spatial correlation function of the coherent diffraction patterns, obtained in the transmission
Ji-Hwan Kwon +4 more
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Laser speckle contrast imaging and machine learning in application to physiological fluids flow rate recognition [PDF]
, 2021 The laser speckle contrast imaging allows the determination of the flow motion in a sequence of images. The aim of this study is to combine the speckle contrast imaging and machine learning methods to recognition of physiological fluids flow rate.
E. Kornaeva +4 more
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Speckle Contrast Reduction with a Visible VCSEL Projector [PDF]
Research Ideas and Outcomes, 2016 Speckle contrast reduction in a laser projector that has a VCSEL emitting in the visible spectrum as its light source can be achieved electronically. Employing a drive circuit enables exciting independent longitudinal modes of the VCSEL. By modulating the VCSEL current continuously with a triangular wave rather than with pulses, the speckle noise ...
Metin Sabuncu, İsmail Yilmazlar
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Clinical applications of laser speckle contrast imaging: a review [PDF]
Journal of Biomedical Optics, 2019 . When a biological tissue is illuminated with coherent light, an interference pattern will be formed at the detector, the so-called speckle pattern. Laser speckle contrast imaging (LSCI) is a technique based on the dynamic change in this backscattered ...
Wido Heeman +4 more
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A Multicenter Study of the Validity and Reliability of Responses to Hand Cold Challenge as Measured by Laser Speckle Contrast Imaging and Thermography [PDF]
Arthritis & Rheumatology, 2018 Reliable and objective outcome measures to facilitate clinical trials of novel treatments for systemic sclerosis (SSc)–related Raynaud's phenomenon (RP) are badly needed.
J. Wilkinson +21 more
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The dependence of speckle contrast on velocity: a numerical study
Journal of the European Optical Society-Rapid Publications, 2022 We study how the speckle contrast depends on scatterer velocity, with the goal of further developing laser speckle imaging as a quantitative measurement technique. To that end, we perform interferometric computer simulations on a dilute plug flow.
van As Kevin +4 more
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Application of laser speckle contrast imaging in laparoscopic surgery.
Biomedical Optics Express, 2019 Anastomotic leakage is a worldwide problem in gastrointestinal surgery which seems to be related to the state of microcirculation. Laser speckle contrast imaging (LSCI) could give surgeons insight in the state of microcirculation to attune the site of ...
Wido Heeman +6 more
semanticscholar +2 more sources
Applications of Laser Speckle Contrast Imaging Technology in Dermatology [PDF]
JID Innovations, 2023 Laser speckle contrast imaging or laser speckle imaging (LSI) is a noninvasive imaging technology that can detect areas of dynamic perfusion or vascular flow.
Courtney Linkous +6 more
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Photonics, 2019 Laser speckle imaging (LSI) is a well-known and useful approach for the non-invasive visualization of flows and microcirculation localized in turbid scattering media, including biological tissues (such as brain vasculature, skin capillaries etc ...
Vyacheslav Kalchenko +5 more
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Correcting sampling bias in speckle contrast imaging. [PDF]
Opt Lett, 2022 When performing spatial or temporal laser speckle contrast imaging (LSCI), contrast is generally estimated from localized windows containing limited numbers of independent speckle grains N S . This leads to a systematic bias in the estimated speckle contrast.
Zheng S, Mertz J.
europepmc +3 more sources