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- W4386470910 abstract "<p>A portable, spatially resolved, diffuse reflectance lensless imaging technique based on the chargecoupled deviceor complementary metal-oxide semiconductor sensor directly coupled to the fiber optic bundle is proposed for visualization of subsurface structures such as superficial microvasculature in the epithelium. We discuss an experimental method for emulating a lensless imaging setup via raster scanning a single fiber-optic cable over a microfluidic phantom containing periodic hemoglobin absorption contrast. To evaluate the ability of the technique to recover information about the subsurface linear structures, scattering layers formed of the Sylgard® 184 Silicone Elastomer and titanium dioxide were placed atop the microfluidic phantom. Thickness of the layers ranged from 0.2 to 0.7 mm, and the values of the reduced scattering coefficient (μ0 s) were between 0.85and4.25 mm−1.Theresultsdemonstratethatfiber-optic,lenslessplatformcanbeusedfortwo-dimensional imaging of absorbing inclusions in diffuse reflectance mode. In these experiments, it was shown that diffuse reflectance imaging can provide sufficient spatial sampling of the phantom for differentiation of 30 μm structural features of the embedded absorbing pattern inside the scattering media.</p>" @default.
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- W4386470910 date "2023-09-06" @default.
- W4386470910 modified "2023-10-16" @default.
- W4386470910 title "Spatially resolved, diffuse reflectance imaging for subsurface pattern visualization toward development of a lensless imaging platform: phantom experiments" @default.
- W4386470910 doi "https://doi.org/10.32920/24092100.v1" @default.
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