Results 1 to 10 of about 11,587,356 (306)
Nanosphere Self-Assembly Imaging Systems and Defect Detection Algorithms for Self-Assembled Structures: A Review [PDF]
Self-assembled nanosphere structures are widely used as bottom-up platforms for ordered micro- and nanostructures, with applications in photonic crystals, sensing platforms, functional coatings, drug delivery, and nanosphere lithography.
Qihang Liu +8 more
doaj +2 more sources
In turbid water, target reflected lidar signal is easily buried in “clutter” due to scattering. We proposed an underwater laser ranging model applying an optical vortex in the receiver to separate the scattering clutter from the target ...
YingQi Liao +6 more
doaj +1 more source
Experimental demonstration of extended depth-of-field f/1.2 visible High Definition camera with jointly optimized phase mask and real-time digital processing [PDF]
Increasing the depth of field (DOF) of compact visible high resolution cameras while maintaining high imaging performance in the DOF range is crucial for such applications as night vision goggles or industrial inspection.
Burcklen M.-A. +13 more
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The traditional head-up display (HUD) system has the disadvantages of a small area and a single display plane, here we propose and design an augmented reality (AR) HUD system with multi-plane, large area, high diffraction efficiency and a single picture ...
Zhenlv Lv, Juan Liu, Liangfa Xu
doaj +1 more source
Simulation Analysis of a Wavefront Reconstruction of a Large Aperture Laser Beam
In order to solve the problem of atmospheric influence on the far-field measurement of the quality of a laser beam, we proposed a direct wavefront measurement system based on the Hartmann detection principle, which can measure large apertures and high ...
Gangyu Wang +4 more
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Advanced Imaging Methods Using Coded Aperture Digital Holography
Optical imaging has been utilized in nature and technology for decades. Recently, new methods of optical imaging assisted by computational imaging techniques have been proposed and demonstrated.
Joseph Rosen
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Biomedical applications of Jones-matrix tomography to polycrystalline films of biological fluids [PDF]
Algorithms for reconstruction of linear and circular birefringence-dichroism of optically thin anisotropic biological layers are presented. The technique of Jones-matrix tomography of polycrystalline films of biological fluids of various human organs has
V. A. Ushenko +9 more
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The classic equation for decomposing the wavefront aberrations of axis-symmetrical optical systems has the form, W ( h 0 , ρ , ϕ ) = ∑ j = 0 ∝ ∑ p = 0 ∝ ∑ m = 0 ∝ C 2 j + m 2 p + m m ( h 0 ...
Lin Psang
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Automated Optical Flow Based Registration for Adaptive Optics Scanning Laser Ophthalmoscope
This study presents an automated registration method based on optical flow for an adaptive optics scanning laser ophthalmoscope. The method was designed to align and average images to obtain a higher signal-to-noise ratio image.
Yiwei Chen +6 more
doaj +1 more source
Smartphone microendoscopy for high resolution fluorescence imaging [PDF]
High resolution optical endoscopes are increasingly used in diagnosis of various medical conditions of internal organs, such as the cervix and gastrointestinal (GI) tracts, but they are too expensive for use in resource-poor settings.
Xiangqian Hong +3 more
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