Results 51 to 60 of about 234,282 (231)
Speckle-free laser imaging using random laser illumination [PDF]
Nature Photonics, 2012 Exploiting the low spatial coherence of specifically designed random lasers, researchers demonstrate speckle-free full-field imaging in the regime of intense optical scattering. Their results show that the quality of images generated from random-laser illumination is superior to those generated from spatially coherent illumination.
Brandon, Redding +2 more
openaire +2 more sources
Hyperuniformity in amorphous speckle patterns [PDF]
, 2018 Hyperuniform structures possess the ability to confine and drive light, although their fabrication is extremely challenging. Here we demonstrate that speckle patters obtained by a superposition of randomly arranged sources of Bessel beams can be used to ...
Ancora, Daniele +4 more
core +2 more sources
Optimizing the precision of laser speckle contrast imaging
Scientific Reports, 2023 Laser speckle contrast imaging (LSCI) is a rapidly developing technology broadly applied for the full-field characterization of tissue perfusion. Over the recent years, significant advancements have been made in interpreting LSCI measurements and ...
Alberto González Olmos +4 more
semanticscholar +1 more source
Laser speckle contrast imaging in biomedical optics [PDF]
Journal of Biomedical Optics, 2010 First introduced in the 1980s, laser speckle contrast imaging is a powerful tool for full-field imaging of blood flow. Recently laser speckle contrast imaging has gained increased attention, in part due to its rapid adoption for blood flow studies in the brain. We review the underlying physics of speckle contrast imaging and discuss recent developments
David A, Boas, Andrew K, Dunn
openaire +2 more sources
Laser Speckle Contrast Imaging Based on a Mobile Phone Camera
IEEE Access, 2021 Laser speckle contrast imaging (LSCI) technology, a type of blood flow monitoring technology, has broad application prospects and has become an attractive subject of research.
Ping Kong +4 more
doaj +1 more source
Contribution of speckle noise in near-infrared spectroscopy measurements [PDF]
, 2019 Near-infrared spectroscopy (NIRS) is widely used in biomedical optics with applications ranging from basic science, such as in functional neuroimaging, to clinical, as in pulse oximetry.
Boas, David A. +5 more
core +1 more source
Lasers in Surgery and Medicine, 2023 Normothermic machine perfusion (NMP) provides a platform for pre‐transplant kidney quality assessment that is essential for the use of marginal donor kidneys.
Yitian Fang +7 more
semanticscholar +1 more source
Handheld, point-of-care laser speckle imaging. [PDF]
J Biomed Opt, 2016 Laser speckle imaging (LSI) enables measurement of relative changes in blood flow in biological tissues. We postulate that a point-of-care form factor will lower barriers to routine clinical use of LSI. Here, we describe a first-generation handheld LSI device based on a tablet computer.
Farraro R, Fathi O, Choi B.
europepmc +6 more sources
Adaptive window space direction laser speckle contrast imaging to improve vascular visualization.
Biomedical Optics Express, 2023 Vascular visualization is crucial in monitoring, diagnosing, and treating vascular diseases. Laser speckle contrast imaging (LSCI) is widely used for imaging blood flow in shallow or exposed vessels.
Guang Han +8 more
semanticscholar +1 more source
Plastic 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