Gaussian sliding window for robust processing laser speckle contrast images.
Sign Up to like & getrecommendations! Published in 2019 at "International journal for numerical methods in biomedical engineering"
DOI: 10.1002/cnm.3186
Abstract: The laser speckle contrast analysis (LASCA) is one of the most applicable tools in microcirculation studies. While the basic idea, as well as experimental setup for this method, are fairly simple, there is still the… read more here.
Keywords: contrast; speckle contrast; sliding window; laser speckle ... See more keywords
Understanding the exposure-time effect on speckle contrast measurements for laser displays
Sign Up to like & getrecommendations! Published in 2018 at "Optical Review"
DOI: 10.1007/s10043-017-0372-5
Abstract: To evaluate the influence of exposure time on speckle noise for laser displays, speckle contrast measurement method was developed observable at a human eye response time using a high-sensitivity camera which has a signal multiplying… read more here.
Keywords: exposure time; laser displays; exposure; speckle contrast ... See more keywords
Understanding the exposure-time effect on speckle contrast measurement for laser projection with rotating diffuser
Sign Up to like & getrecommendations! Published in 2018 at "Optical Review"
DOI: 10.1007/s10043-018-0467-7
Abstract: To evaluate the influence of observer’s exposure time over speckle noise of laser displays, we developed the high-speed measurement method which can measure speckle contrast over a wide range of exposure time without adjusting the… read more here.
Keywords: exposure time; laser; time; speckle contrast ... See more keywords
Assessment of microvascular endothelial function in type 1 diabetes using laser speckle contrast imaging.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of diabetes and its complications"
DOI: 10.1016/j.jdiacomp.2016.12.007
Abstract: OBJECTIVE To test whether laser speckle contrast imaging (LSCI) coupled with physiological post-occlusive reactive hyperemia (PORH) and pharmacological iontophoresis of acetylcholine (ACh) as local vasodilator stimuli could distinguish between cutaneous microvascular responses of Type 1… read more here.
Keywords: contrast imaging; endothelial function; speckle contrast; laser speckle ... See more keywords
Monitoring microvascular perfusion variations with laser speckle contrast imaging using a view-based temporal template method.
Sign Up to like & getrecommendations! Published in 2017 at "Microvascular research"
DOI: 10.1016/j.mvr.2016.12.004
Abstract: PURPOSE Laser speckle contrast imaging (LSCI) continues to gain an increased interest in clinical and research studies to monitor microvascular perfusion. Due to its high spatial and temporal resolutions, LSCI may lead to a large… read more here.
Keywords: contrast imaging; microvascular perfusion; perfusion; perfusion variations ... See more keywords
Retooling Laser Speckle Contrast Analysis Algorithm to Enhance Non-Invasive High Resolution Laser Speckle Functional Imaging of Cutaneous Microcirculation
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep41048
Abstract: Cutaneous microvasculopathy complicates wound healing. Functional assessment of gated individual dermal microvessels is therefore of outstanding interest. Functional performance of laser speckle contrast imaging (LSCI) systems is compromised by motion artefacts. To address such weakness,… read more here.
Keywords: laser speckle; high resolution; laser; speckle contrast ... See more keywords
Intraoperative Optical and Fluorescence Imaging of Blood Flow Distributions in Mastectomy Skin Flaps for Identifying Ischemic Tissues
Sign Up to like & getrecommendations! Published in 2022 at "Plastic and Reconstructive Surgery"
DOI: 10.1097/prs.0000000000009333
Abstract: Summary: Insufficient blood flow causes mastectomy skin flap necrosis in 5 to 30 percent of cases. Fluorescence angiography with the injection of indocyanine green dye has shown high sensitivities (90 to 100 percent) but moderate… read more here.
Keywords: speckle contrast; mastectomy skin; blood; blood flow ... See more keywords
Using Laser Speckle Contrast Imaging to Quantify Perfusion Quality in Kidney and Pancreas Grafts on Vascular Reperfusion: A Proof-of-Principle Study
Sign Up to like & getrecommendations! Published in 2023 at "Transplantation Direct"
DOI: 10.1097/txd.0000000000001472
Abstract: Introduction. The accuracy of intraoperative graft perfusion assessment still remains subjective, with doppler examination being the only objective adjunct. Laser speckle contrast imaging (LSCI) has been used to assess intraoperative blood flow in neurosurgery and… read more here.
Keywords: kidney; reperfusion; kidney pancreas; laser speckle ... See more keywords
Speckle contrast of interfering fluorescence X-rays
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Synchrotron Radiation"
DOI: 10.1107/s1600577522009997
Abstract: Methods are developed to quantify the degree of coherence of fluorescently emitted X-rays from short-pulse XFEL excitations. Applications to 3 fs and 15 fs excitations are shown. read more here.
Keywords: interfering fluorescence; speckle contrast; fluorescence rays; contrast interfering ... See more keywords
Depth of Field Extension in Laser Speckle Contrast Imaging
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2972814
Abstract: A new technique that can increase the depth of field (DOF) for in vivo tissue imaging is presented. Extended DOF for the imaging of strongly scattering media is realized through combining laser speckle contrast imaging… read more here.
Keywords: field; laser speckle; speckle contrast; depth field ... See more keywords
Effect of Phase Relations on Speckle Pattern: Simulation and Measurement
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2019.2919240
Abstract: Speckle is an important phenomenon in various applications. It can be quantified by speckle contrast. However, at present, the influence of the phase relations among the various wavelengths on speckle contrast is rarely analyzed theoretically.… read more here.
Keywords: method; speckle contrast; speckle pattern; phase ... See more keywords