Results 11 to 20 of about 13,509 (286)
Multifunctional laser speckle imaging [PDF]
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, Shuhao Shen, Shau Poh Chong
exaly +4 more sources
Tools for classification of growing/non-growing bacterial colonies using laser speckle imaging [PDF]
Frontiers in Microbiology, 2023 Prior research has indicated the feasibility of assessing growth—associated activity in bacterial colonies through the application of laser speckle imaging techniques.
Ilya Balmages +8 more
doaj +2 more sources
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.
E Du +3 more
doaj +3 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
The Methodology of Adaptive Levels of Interval for Laser Speckle Imaging [PDF]
Journal of ImagingA methodology is proposed for use in the laser speckle imaging field. This methodology modified the graphical and numerical speckle pattern imaging methods to improve their extraction and discrimination capabilities when processing the embedded temporal ...
Ali A. Al-Temeemy
doaj +2 more sources
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
exaly +3 more sources
Investigation of speckle pattern dynamics by laser speckle contrast imaging [PDF]
Biophotonics: Photonic Solutions for Better Health Care VI, 2018 Laser speckle contrast imaging (LSCI) is a simple and quite powerful method for visualization of flow, microcirculation and perfusion. In current study the speckle contrast variations towards breaking ergodicity conditions are considered with a final aim of envision a practical approach allowing real-time imaging of variations in dynamic properties of ...
Sdobnov, A. (Anton) +4 more
core +4 more sources
Laser Speckle Imaging of Sensitized Acupoints. [PDF]
Evid Based Complement Alternat Med, 2018 Acupoints microcirculatory dynamics vary depending on the body’s health status. However, the functional changes observed during acupoint sensitization, that is, the disease‐induced change from a “silenced” to an “activated” status, remain elusive. In this study, the microcirculatory changes at acupoints during sensitization were characterized.
Ding N +5 more
europepmc +4 more sources
Adapted Correlation Methods for Laser Speckle Imaging of Microbial Activity: Evaluation and Rationale [PDF]
SensorsThe laser speckle technique provides a non-invasive remote sensing method for monitoring biological dynamics. In this study, we focus on assessing microbial growth through systematic comparison of correlation-based speckle image analysis methods.
Ilya Balmages +5 more
doaj +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 +5 more sources