Articles with "speckle imaging" as a keyword



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Evolution of cerebral perfusion in the peri-contusional cortex in mice revealed by in vivo laser speckle imaging after traumatic brain injury

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Published in 2018 at "Brain Research"

DOI: 10.1016/j.brainres.2018.07.006

Abstract: The role of the cerebrovascular network during the acute and chronic phases after traumatic brain injury (TBI) is poorly defined and emerging evidence suggests that cerebral perfusion is altered. The purpose of this study is… read more here.

Keywords: blood flow; cerebral perfusion; laser speckle; speckle imaging ... See more keywords
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Application of optical flow algorithms to laser speckle imaging.

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Published in 2019 at "Microvascular research"

DOI: 10.1016/j.mvr.2018.11.001

Abstract: Since of its introduction in 1980s, laser speckle imaging has become a powerful tool in flow imaging. Its high performance and low cost made it one of the preferable imaging methods. Initially, speckle contrast measurements… read more here.

Keywords: speckle; flow algorithms; laser speckle; speckle imaging ... See more keywords
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Perspective error reduction in 2D Digital Image Correlation measurements by combination with Defocused Speckle Imaging

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Published in 2022 at "Optics and Lasers in Engineering"

DOI: 10.1016/j.optlaseng.2021.106820

Abstract: Abstract 2D Digital Image Correlation (2D DIC) enables full-field in-plane displacement measurement by tracking the physical surface texture in the recorded images. However, because camera magnification is inversely proportional to object distance, points along the… read more here.

Keywords: perspective errors; surface; digital image; defocused speckle ... See more keywords
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Fourier transforms for fast and quantitative Laser Speckle Imaging

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Published in 2019 at "Scientific Reports"

DOI: 10.1038/s41598-019-49570-7

Abstract: Laser speckle imaging is a powerful imaging technique that visualizes microscopic motion within turbid materials. At current two methods are widely used to analyze speckle data: one is fast but qualitative, the other quantitative but… read more here.

Keywords: fast quantitative; speckle; laser speckle; speckle imaging ... See more keywords
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Multifunctional laser speckle imaging.

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Published in 2020 at "Biomedical optics express"

DOI: 10.1364/boe.388856

Abstract: 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… read more here.

Keywords: laser; multifunctional laser; laser speckle; blood ... See more keywords
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Echo speckle imaging of dynamic processes in soft materials.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.459708

Abstract: We present a laser-speckle imaging technique, termed Echo speckle imaging (ESI), that quantifies the local dynamics in biological tissue and soft materials with a noise level around or below 10% of the measured signal without… read more here.

Keywords: soft materials; imaging dynamic; speckle imaging; dynamic processes ... See more keywords