Journal of Biomedical Photonics & Engineering, 2017 The blood microcirculation of the pancreas in rats with diabetes was studied using Laser Speckle Contrast Imaging (LSCI). The impact on blood flow of x-ray contrast “OmnipaqueTM-300” (n = 1.438) and aqueous solution of “OmnipaqueTM-300” (n = 1.407) used ...
Polina A. Timoshina +3 more
doaj +1 more source
High-density speckle contrast optical tomography (SCOT) for three dimensional tomographic imaging of the small animal brain [PDF]
, 2017 High-density speckle contrast optical tomography (SCOT) utilizing tens of thousands of source-detector pairs, was developed for in vivo imaging of blood flow in small animals.
Culver, Joseph P +6 more
core +3 more sources
A new simulation method for laser speckle imaging to investigate hemodynamics [PDF]
E3S Web of Conferences, 2019 Speckle simulation is a powerful protocol to investigate the properties of speckle and evaluate image processing method. However, only static speckle images can be simulated by available methods without considering time-integrated effect of CCD.
Sang X, Li D, Chen B
doaj +1 more source
Low dose X-ray speckle visibility spectroscopy reveals nanoscale dynamics in radiation sensitive ionic liquids [PDF]
, 2018 X-ray radiation damage provides a serious bottle neck for investigating {\mu}s to s dynamics on nanometer length scales employing X-ray photon correlation spectroscopy.
Gutt, Christian +8 more
core +3 more sources
Surface characterization of biodegradable nanocomposites by dynamic speckle analysis
Applied Surface Science Advances, 2023 Starch/kefiran/ZnO nanocomposite films may exhibit different physicochemical properties depending on the distribution of ZnO nanoparticles. As a result of UV exposure, the hydrophobicity of the nanoparticles may be modified, resulting in their dispersion
Ramin Jamali +5 more
doaj +1 more source
Scientific Reports, 2020 Speckle reduction is an important topic in holographic displays as speckles not only reduce signal-to-noise ratio but also possess an eye-safety issue. Despite thorough exploration of speckle reduction methods using partially coherent light sources, the ...
Seungjae Lee +5 more
semanticscholar +1 more source
Real-time X-ray Phase-contrast Imaging Using SPINNet -- A Speckle-based Phase-contrast Imaging Neural Network [PDF]
Optica, 2022 X-ray phase-contrast imaging has become indispensable for visualizing samples with low absorption contrast. In this regard, speckle-based techniques have shown significant advantages in spatial resolution, phase sensitivity, and implementation ...
Zhi-wei Qiao +6 more
semanticscholar +1 more source
Speckle noise reduction techniques for high-dynamic range imaging [PDF]
, 2007 High-dynamic range imaging from space in the visible, aiming in particular at the detection of terrestrial exoplanets, necessitates not only the use of a coronagraph, but also of adaptive optics to correct optical defects in real time.
Belikov +23 more
core +3 more sources
Study on Speckle Noise Reduction in Laser Projection Displays
PhotonicsLaser speckle has a negative effect on laser projectors, so reducing laser speckle is crucial for the development of laser projector displays. We primarily focus on studying the laser speckle contrast of laser projector displays and the mechanism for ...
Hongyou Zhang +3 more
doaj +1 more source
Invited - Experimental characterization of optical feedback and current modulation effects on the spatial coherence of a semiconductor laser [PDF]
EPJ Web of ConferencesSemiconductor lasers are very sensitive to optical feedback. Here we study experimentally the effect of optical feedback on the spatial coherence of a diode laser using the speckle technique.
Duque Gijon Maria +2 more
doaj +1 more source