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861
Evaluating the Influence of Clinical Data on Inter-Observer Variability in Optic Disc Analysis for AI-Assisted Glaucoma Screening
Published 2024-12-01“…Sayeh Pourjavan,1,2 Gen-Hua Bourguignon,1 Cristina Marinescu,2 Loic Otjacques,2 Antonella Boschi1 1Department of Ophthalmology, Cliniques Universitaires Saint Luc, UCL, Brussels, Belgium; 2Department of Ophthalmology, Chirec Hospital Groups, Delta Hospital, Brussels, BelgiumCorrespondence: Sayeh Pourjavan, Email Sayeh.pourjavan@saintluc.uclouvain.bePurpose: This study aims to evaluate the inter-observer variability in assessing the optic disc in fundus photographs and its implications for establishing ground truth in AI research.Methods: Seventy subjects were screened during a screening campaign. …”
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862
Investigating the Impact of Optical Snow Cover Data on L-Band InSAR Snow Water Equivalent Retrievals
Published 2025-01-01“…To address this challenge in SWE monitoring, we evaluated a multisensor approach that leverages the strengths of both optical and radar sensors. Our study aims to understand how differences between optically derived snow cover data products propagate variability and uncertainty into interferometric synthetic aperture radar (InSAR) SWE change retrievals. …”
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863
Impact of B-Scan Averaging on Spectralis Optical Coherence Tomography Image Quality before and after Cataract Surgery
Published 2017-01-01“…Study Design/Material and Methods. In a prospective study, the eyes were imaged before and after cataract surgery using seven different image averaging settings. …”
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864
Surface oxygen vacancies in amorphous Fe2O3 tailored nonlinear optical properties for ultrafast photonics
Published 2025-07-01“…By characterizing the nonlinear optical properties of the prepared Fe2O3 nanomaterials with different surface oxygen vacancy concentrations, we found that Fe2O3 nanomaterials with larger oxygen vacancy content have a deeper modulation depth and the larger third-order nonlinear coefficient. …”
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865
Real-Time Analysis of Athletes’ Physical Condition in Training Based on Video Monitoring Technology of Optical Flow Equation
Published 2021-01-01“…After that, through the analysis of the existing methods, compared with some algorithms that only process a single frame in the video, this article analyzes the continuous multiple frames in the video and extracts the continuous multiple frames of the sampling points through the Lucas-Kanade optical flow method. …”
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866
Quantifying monochromatic and polychromatic optical blur anisotropy in the periphery of myopes and emmetropes using a radial asymmetry metric
Published 2025-02-01“…Myopes were significantly more likely to have vertically oriented blur than emmetropes under monochromatic conditions in the temporal peripheral retina beyond 20°. These differences were minimized when chromatic aberrations were included, though the trend remained the same.ImplicationsA trend of more vertical optical blur in the temporal periphery of myopes strengthens the hypothesis that myopes experience different peripheral optical blur than emmetropes, though the small sample size of the current study limits generalizability of the results. …”
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867
Estimation of an Abnormal Noise Location Over Multi-Span Optical Fiber Link Based on Nonlinear Fourier Transform
Published 2025-01-01“…In addition, we demonstrate that the proposed method is applicable to the case where the launch optical power is shifted from the optimum or an optical fiber link with a different span length.…”
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868
Direct optical second harmonic generation probing of manufactured effect at interfaces between high-κ dielectric and silicon
Published 2025-04-01“…In this study, the second harmonic generation (SHG) signals are observed from the interfaces between high-κ dielectric layers fabricated by different methods and silicon substrate, a promising class of silicon-based microelectronic and optoelectronic applications. …”
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869
Differential diagnosis between psoriatic arthritis and hand osteoarthritis using indocyanine green-based fluorescence optical imaging
Published 2025-08-01“…The aim of this study was to differentiate active PsA from EHOA using FOI.MethodsAn atlas with FOI images of different grades of enhancement (FOIAS 0–3) and typical morphologic patterns (‘Streaky signals’, ‘Green/Blue Nail sign’, ‘Werner sign’, and ‘Bishop’s crozier sign’) for PsA and hand EHOA was created. …”
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870
Investigating MIMO technology in free space optical communication systems for evaluating performance across various environment parameters
Published 2025-03-01“…Despite the recent disagreement on constrained capability, it has emerged as the most optimal option for the optical communications domain. Because environmental factors have a huge effect on the capacity and availability of free-space optical (FSO) links, especially when adverse weather lowers the signal strength and visibility range, this study looks at what happens to the FSO link when the atmosphere is turbulent in different ways. …”
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871
Shock Boundary Layer Interaction and Aero-Optical Effects in a Transonic Flow over Hemisphere-on-Cylinder Turrets
Published 2022-01-01“…The detached eddy simulation (DES) based on SST k-ω turbulence model and ray-tracing methods are used to reproduce the transonic flow and optical aberration. …”
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872
Diagnostic accuracy of endoscopic optical evaluation and forceps biopsy in comparison with pathohistological findings of colorectal laterally spreading tumors
Published 2024-08-01“…This makes it necessary to compare the results of optical and forceps biopsy and determine the expediency of performing the latter for different types of colorectal laterally spreading tumors (LST). …”
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873
Changes of Peripapillary Capillary Density in Patients with Vogt–Koyanagi–Harada Disease Evaluated by Optical Coherence Tomography Angiography
Published 2023-01-01“…Methods. Retrospective case series. 44 patients (88 eyes) were enrolled and were divided into two groups according to presence/absence of optic disc swelling before treatment. …”
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874
Association between smoking history and optical coherence tomography angiography findings in diabetic patients without diabetic retinopathy.
Published 2021-01-01“…<h4>Participants</h4>1099 eyes from 1099 diabetic patients with no clinical evidence of diabetic retinopathy (DR) were included in this study.<h4>Methods</h4>Diabetic patients underwent optical coherence tomography angiography (OCTA) scanning at Zuckerberg San Francisco General Hospital and Trauma Center between April 2018 and September 2019. …”
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875
Comparison of ocular biometry and refractive outcomes using two swept-source optical coherence tomography-based biometers.
Published 2024-01-01“…There were no significant differences in measuring anterior chamber depth (ACD) (p > 0.05). …”
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876
Synthesis and Characterization of MgO-ZrO<sub>2</sub> Heterostructure: Optical, Mechanical and Electrical Properties
Published 2025-05-01“…The presence of both magnesium oxide (MgO) and zirconium dioxide (ZrO<sub>2</sub>) in their oxidized forms was shown by the detailed characterization of the MgO-ZrO<sub>2</sub> core–shell nanowire samples utilizing a variety of methods. Phase formation, mechanical homogeneity, optical characteristics, and topographical structure and roughness were all thoroughly examined at various stresses. …”
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877
Modeling of The Nitrogen Requirement of Winter Wheat for Protein Content Using Optical Sensor in Central Anatolia Region of Türkiye
Published 2023-10-01“…For smallholders in developing countries, the use of a hand-held meter to manage nitrogen fertilizer in rice and wheat is the most popular method. The adoption of nitrogen management strategies based on close sensing using chlorophyll meters and optical sensors will largely depend on the inclusion of specific economic analysis in future research. …”
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878
Study of morphology, phase composition, optical properties, and thermal stability of hydrothermal zirconium dioxide synthesized at low temperatures
Published 2024-11-01“…This paper investigates how different precursors (ZrOCl₂·8H₂O and ZrO(NO₃)₂·2H₂O) and synthesis temperatures (110–160 °C) affect the phase composition, optical properties, size, and shape of ZrO₂ nanoparticles produced by hydrothermal synthesis without calcination. …”
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879
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880
Ultrasensitive Temperature Sensor With Cascaded Fiber Optic Fabry–Perot Interferometers Based on Vernier Effect
Published 2018-01-01“…Temperature sensitivity of the sensing FPI is much higher than the reference FPI, which means that the reference FPI need not to be thermally isolated. By curve fitting method, three different temperature sensitivities of 33.07, −58.60, and 67.35 nm/°C have been experimentally demonstrated with different cavity lengths ratio of the sensing and reference FPI, which can be flexibly adjusted to meet different application demands. …”
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