Results 81 to 90 of about 3,214,745 (368)
Wavelet Analysis of the Temporal Dynamics of the Laser Speckle Contrast in Human Skin
IEEE Transactions on Biomedical Engineering, 2020 Objective: Spectral analysis of laser Doppler flowmetry (LDF) signals has been widely used in studies of physiological vascular function regulation. An alternative to LDF is the laser speckle contrast imaging method (LSCI), which is based on the same ...
I. Mizeva +5 more
semanticscholar +1 more source
Detection of Electromagnetic Inclusions using Topological Sensitivity [PDF]
, 2016 In this article a topological sensitivity framework for far field detection of a diametrically small electromagnetic inclusion is established. The cases of single and multiple measurements of the electric far field scattering amplitude at a fixed ...
Abbas, Tasawar +3 more
core +3 more sources
Real-Time Laser Speckle Imaging of Blood Flow with High Gray Level and High Resolution
Shanghai Jiaotong Daxue xuebao, 2023 Laser speckle contrast imaging (LSCI) is a large measurement ranging, real-time, high spatial resolution optical imaging method. Exisiting reserches show that the low gray level (8-bit) and low resolution (752×480 pixels) camera can effectively monitor ...
ZHANG Zelong, ZHANG Yingchao, WU Bo, DONG Wei, FAN Youben
doaj +1 more source
Diffuse Speckle Contrast Analysis (DSCA) for Deep Tissue Blood Flow Monitoring
Advanced Biomedical Engineering, 2020 Assessing blood ow, as well as blood volume and oxygen saturation, is of utmost importance for health monitoring. Assessing microcirculation, as opposed to macrocirculation, is especially important for assessing the local tissue viability.
Kijoon Lee
semanticscholar +1 more source
The dependence of speckle contrast on velocity: a numerical study
Journal of the European Optical Society-Rapid Publications, 2022 We study how the speckle contrast depends on scatterer velocity, with the goal of further developing laser speckle imaging as a quantitative measurement technique. To that end, we perform interferometric computer simulations on a dilute plug flow.
van As Kevin +4 more
doaj +1 more source
The discrepancy in G-band contrast: Where is the quiet Sun?
, 2007 We compare the rms contrast in observed speckle reconstructed G-band images with synthetic filtergrams computed from two magneto-hydrodynamic simulation snapshots. The observations consist of 103 bursts of 80 frames each taken at the Dunn Solar Telescope
A. Tritschler +7 more
core +2 more sources
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Multi-frame speckle reduction in OCT using supercontinuum pumped by noise-like pulses [PDF]
Journal of Innovative Optical Health Sciences, 2019 In most coherent imaging modality, speckle noise is a major cause that blurs the boundary of tissues and degrades the image contrast. By utilizing the unique properties of supercontinuum (SC) generated by noise-like pulses (NLPs) and a simple multi-frame
Chengming Wang +10 more
doaj +1 more source
First On-Sky High Contrast Imaging with an Apodizing Phase Plate [PDF]
, 2007 We present the first astronomical observations obtained with an Apodizing Phase Plate (APP). The plate is designed to suppress the stellar diffraction pattern by 5 magnitudes from 2-9 lambda/D over a 180 degree region. Stellar images were obtained in the
Ari Heinze +10 more
core +2 more sources
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source