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
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Sensors, 2021 The laser speckle correlation method has found widespread application for obtaining information from vibrating objects. However, the resolution and accuracy of the laser speckle correlation method as they relate to the defocusing degree have not been ...
Wenxin Hu +4 more
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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
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Physics-Informed Generative Adversarial Networks for Laser Speckle Noise Suppression [PDF]
SensorsIn high-resolution microscopic imaging, using shorter-wavelength ultraviolet (UV) lasers as illumination sources is a common approach. However, the high spatial coherence of such lasers, combined with the surface roughness of the sample, often introduces
Xiangji Guo +4 more
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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
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Laser speckle size and contrast investigation of volumetric scattering from controlled turbid phantoms and mouse skin tissues [PDF]
iScienceSummary: The potential of spatial laser speckle analysis to interrogate scattering properties of volumetric optical tissue-like phantoms and biological tissues is examined.
Carla Kulcsar +2 more
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Real-time intestinal perfusion assessment for anastomotic site selection using laser speckle contrast imaging: Verification in a porcine model [PDF]
Surgery Open ScienceIntroduction: Adequate blood perfusion is widely recognized as a crucial factor for successful healing of an anastomosis and avoid anastomotic leakage.
Danique J.I. Heuvelings +9 more
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DETECTION OF HAZARDOUS MATERIALS IN LASER CUTTING USING DEEP LEARNING AND SPECKLE SENSING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 The technology of laser cutting is widely used in various industries for processing materials. However, it generates a substantial amount of harmful dust, smoke, and aerosols, which pose a threat to the environment and endanger the health of workers. One
M. A. Salem +2 more
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Polychromatic speckle reduction in laser pico-projectors using stationary dual Hadamard diffusers [PDF]
Journal of the European Optical Society-Rapid Publications, 2014 Speckle from coherent light sources continues to be a limiting factor in the design and manufacturing of laser projectors. Utilizing diffractive diffusers has been an effective method for reducing monochromatic speckle contrast.
Thomas W., Middlebrook C.
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IEEE Access, 2021 The speckle phenomenon produced by coherent waves interfering with each other is undesirable in laser imaging systems. For each of the laser speckle reduction methods in the literature, it is difficult to reduce speckle to an extremely low level (<
Jun Zhou +6 more
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