Results 11 to 20 of about 44,997 (341)
Research on Recognition of Coal and Gangue Based on Laser Speckle Images
Sensors, 2023 Coal gangue image recognition is a critical technology for achieving automatic separation in coal processing, characterized by its rapid, environmentally friendly, and energy-saving nature.
Hequn Li +5 more
doaj +2 more sources
Scientific Reports, 2021 The artefact known as speckle can plague numerous imaging applications where the narrow linewidth of laser light is required, which includes laser projection and medical imaging.
David J. Hansford +3 more
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Multifunctional laser speckle imaging
Biomedical 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. The system has been applied to imaging the chicken embryos to visualize both the blood flow and morphological details of ...
E. Du +3 more
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Choosing a laser for laser speckle contrast imaging [PDF]
Scientific Reports, 2019 AbstractThe use of laser speckle contrast imaging (LSCI) has expanded rapidly for characterizing the motion of scattering particles. Speckle contrast is related to the dynamics of the scattering particles via a temporal autocorrelation function, but the quality of various elements of the imaging system can adversely affect the quality of the signal ...
Dmitry D. Postnov +3 more
openaire +5 more sources
Biomedical Optics Express, 2022 We introduce a dynamic speckle model (DSM) to simulate the temporal evolution of fully developed speckle patterns arising from the interference of scattered light reemitted from dynamic tissue.
Sharvari Zilpelwar +7 more
semanticscholar +1 more source
Multi-scale laser speckle contrast imaging of microcirculatory vasoreactivity.
Biomedical Optics Express, 2022 Laser speckle contrast imaging is a robust and versatile blood flow imaging tool in basic and clinical research for its relatively simple construction and ease of customization. One of its key features is the scalability of the imaged field of view. With
Blaire S. Lee +3 more
semanticscholar +1 more source
Direct characterization of tissue dynamics with laser speckle contrast imaging.
Biomedical Optics Express, 2022 Laser speckle contrast imaging (LSCI) has gained broad appeal as a technique to monitor tissue dynamics (broadly defined to include blood flow dynamics), in part because of its remarkable simplicity.
Shuqi Zheng, J. Mertz
semanticscholar +1 more source
Lens-free motion analysis via neuromorphic laser speckle imaging.
Optics 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
BMC Surgery, 2023 Background/purpose Real-time quantification of tissue perfusion can improve intraoperative surgical decision making. Here we demonstrate the utility of Laser Speckle Contrast Imaging as an intra-operative tool that quantifies real-time regional ...
Saloni Mehrotra +7 more
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Laser speckle imaging for early detection of microbial colony forming units.
Biomedical 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