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Denoising Phase-Unwrapped Images in Laser Imaging via Statistical Analysis and DnCNN [PDF]
MicromachinesThree-dimensional imaging plays a crucial role at the micro-scale in fields such as precision manufacturing and materials science. However, image noise significantly impacts the accuracy of point cloud reconstruction, making image denoising techniques a ...
Yibo Xie +6 more
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Pharmaceutics, 2023 One of challenges that faces diabetes is the wound healing process. The delayed diabetic wound healing is caused by a complicated molecular mechanism involving numerous physiological variables.
Hala Zuhayri +6 more
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Pharmaceutics, 2022 The effect of low-dose photodynamic therapy on in vivo wound healing with topical application of 5-aminolevulinic acid and methylene blue was investigated using an animal model for two laser radiation doses (1 and 4 J/cm2).
Hala Zuhayri +6 more
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Pharmaceutics, 2022 The effect of low-dose photodynamic therapy on in vivo wound healing was investigated using optical coherence tomography. This work aims to develop an approach to quantitative assessment of the wound’s state during wound healing including the effect of ...
Hala Zuhayri +5 more
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Laser Speckle Reduction Using a Liquid Crystal Diffuser Enhanced with Redox Dopants
Advanced Photonics Research, 2021 Herein, a large reduction in the speckle noise is observed using a thin electroresponsive film consisting of a chiral nematic liquid crystal (LC) that has been enhanced with the addition of a redox dopant.
Yihan Jin +3 more
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An Evaluation of Lymphedema Using Optical Coherence Tomography: A Rat Limb Model Approach
Diagnostics, 2023 Lymphedema is a pathology caused by poor lymphatic flow which may lead to complete disability. Currently, precise, non-invasive techniques for quantifying lymphedema are lacking.
V. V. Nikolaev +7 more
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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
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Predictive models for COVID-19 detection using routine blood tests and machine learning
Heliyon, 2022 The problem of accurate, fast, and inexpensive COVID-19 tests has been urgent till now. Standard COVID-19 tests need high-cost reagents and specialized laboratories with high safety requirements, are time-consuming.
Yury V. Kistenev +3 more
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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
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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
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