Results 21 to 30 of about 234,282 (231)
Choosing a model for laser speckle contrast imaging.
Biomedical Optics Express, 2021 Laser speckle contrast imaging (LSCI) is a real-time full-field non-invasive technique, which is broadly applied to visualize blood flow in biomedical applications.
Chang Liu +4 more
semanticscholar +3 more sources
LaserShoes: Low-Cost Ground Surface Detection Using Laser Speckle Imaging
International Conference on Human Factors in Computing Systems, 2023 Ground surfaces are often carefully designed and engineered with various textures to fit the functionalities of human environments and thus could contain rich context information for smart wearables.
Zihan Yan +6 more
semanticscholar +1 more source
Lens-free motion analysis via neuromorphic laser speckle imaging.
Optics Express, 2022 Laser speckle imaging (LSI) is a powerful tool for motion analysis owing to the high sensitivity of laser speckles. Traditional LSI techniques rely on identifying changes from the sequential intensity speckle patterns, where each pixel performs ...
Zhou Ge +4 more
semanticscholar +1 more source
ForceSight: Non-Contact Force Sensing with Laser Speckle Imaging
ACM Symposium on User Interface Software and Technology, 2022 Force sensing has been a key enabling technology for a wide range of interfaces such as digitally enhanced body and world surfaces for touch interactions.
Siyou Pei +5 more
semanticscholar +1 more source
Line Scan Spatial Speckle Contrast Imaging and Its Application in Blood Flow Imaging
Applied Sciences, 2021 Laser speckle imaging has been an indispensable tool for visualizing blood flow in biomedical applications. We proposed a novel design of the laser speckle imaging system, which combines confocal illumination and detection with various speckle analysis ...
E Du +3 more
doaj +1 more source
Laser speckle contrast imaging to assess microcirculation
Cardiology Journal, 2022 International ...
Marcin Hellmann +2 more
doaj +4 more sources
Speckle free laser imaging [PDF]
Conference on Lasers and Electro-Optics 2012, 2012 Many imaging applications require increasingly bright illumination sources, motivating the replacement of conventional thermal light sources with light emitting diodes (LEDs), superluminescent diodes (SLDs) and lasers. Despite their brightness, lasers and SLDs are poorly suited for full-field imaging applications because their high spatial coherence ...
Redding, Brandon +2 more
openaire +2 more sources
Photothermal laser speckle imaging [PDF]
Optics Letters, 2014 The analysis of speckle contrast in a time-integrated speckle pattern enables visualization of superficial blood flow in exposed vasculature, a method we call laser speckle imaging (LSI). With current methods, LSI does not enable visualization of subsurface or small vasculature, because of optical scattering by stationary structures.
Regan, Caitlin +2 more
openaire +4 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
Magnetomotive laser speckle imaging [PDF]
Journal of Biomedical Optics, 2010 Laser speckle imaging (LSI) involves analysis of reflectance images collected during coherent optical excitation of an object to compute wide-field maps of tissue blood flow. An intrinsic limitation of LSI for resolving microvascular architecture is that its signal depends on relative motion of interrogated red blood cells.
Jeehyun, Kim +2 more
openaire +2 more sources