Results 1 to 10 of about 2,012,293 (294)
Confocal laser speckle autocorrelation imaging of dynamic flow in microvasculature
Opto-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.
Shuhao Shen, Anqi Qiu, Nanguang Chen
exaly +2 more sources
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 +4 more sources
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
openaire +3 more sources
Quantitative modeling of laser speckle imaging [PDF]
Optics Letters, 2006 We have analyzed the image formation and dynamic properties in laser speckle imaging (LSI) both experimentally and with Monte-Carlo simulation. We show for the case of a liquid inclusion that the spatial resolution and the signal itself are both ...
Alfred Buck +17 more
core +8 more sources
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 +2 more
exaly +2 more sources
Laser speckle imaging of the hippocampus. [PDF]
Biomed Opt ExpressResearch on hippocampal blood flow is essential for gaining insight into its involvement in learning and memory and its role in age-related cognitive impairment and dementia. In this study, we applied laser speckle contrast imaging (LSCI) and dynamic light scattering imaging (DLSI) to monitor perfusion in mouse hippocampus via a chronic, optically ...
Mikkelsen SH +3 more
europepmc +4 more sources
Extracting particle size distribution from laser speckle with a physics-enhanced autocorrelation-based estimator (PEACE) [PDF]
Nature Communications, 2022 Extracting quantitative information about highly scattering surfaces from an imaging system is challenging because the phase of the scattered light undergoes multiple folds upon propagation, resulting in complex speckle patterns. One specific application
Qihang Zhang +11 more
semanticscholar +1 more source
Applications of Laser Speckle Contrast Imaging Technology in Dermatology
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.
C. Linkous +6 more
semanticscholar +1 more source
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
Measurement of Variations in Gas Refractive Index with 10–9 Resolution Using Laser Speckle [PDF]
ACS Photonics, 2021 Highly resolved determination of refractive index is vital in fields ranging from biosensing through to laser range finding. Laser speckle is known to be a sensitive probe of the properties of the light and the environment, but to date speckle-based ...
M. Facchin, G. Bruce, K. Dholakia
semanticscholar +1 more source