Results 61 to 70 of about 6,169 (204)
Multiwavelength active optics Shack-Hartmann sensor for seeing and turbulence outer scale monitoring
, 2014 Real-time seeing and outer scale estimation at the location of the focus of a telescope is fundamental for the adaptive optics systems dimensioning and performance prediction, as well as for the operational aspects of instruments.
Martinez, Patrice
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Laser &Photonics Reviews, Volume 19, Issue 12, June 18, 2025.This review explores deconvolution techniques in optical coherence tomography (OCT), addressing resolution degradation from point‐spread functions (PSF). It reviews foundational principles (e.g., Richardson‐Lucy deconvolution) to advanced AI‐driven methods, emphasizing clinical translation and interdisciplinary collaboration. Real‐world implementations
Syeda Aimen Abbasi +6 more
wiley +1 more source
A Shack-Hartmann Sensor for Single-Shot Multi-Contrast Imaging with Hard X-rays
Applied Sciences, 2018 An array of compound refractive X-ray lenses (CRL) with 20 × 20 lenslets, a focal distance of 20cm and a visibility of 0.93 is presented. It can be used as a Shack-Hartmann sensor for hard X-rays (SHARX) for wavefront sensing and permits for true ...
Tomy dos Santos Rolo +7 more
doaj +1 more source
Mathematics, 2021 Information on the correlations from solar Shack–Hartmann wavefront sensors is usually used for reconstruction algorithms. However, modern applications of artificial neural networks as adaptive optics reconstruction algorithms allow the use of the full ...
Francisco García Riesgo +4 more
doaj +1 more source
Polarization dOTF: on-sky focal plane wavefront sensing
, 2016 The differential Optical Transfer Function (dOTF) is a focal plane wavefront sensing method that uses a diversity in the pupil plane to generate two different focal plane images.
Brooks, Keira J. +4 more
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Application of artificial intelligence in myopia prevention and control
Pediatric Investigation, Volume 9, Issue 2, Page 114-124, June 2025.Current applications of artificial intelligence (AI) in the field of myopia prevention and control were comprehensively reviewed. Challenges, current development status, and future directions of AI have also been discussed, holding great significance for the further application of AI in myopia management.
Nan Liu, Li Li, Jifeng Yu
wiley +1 more source
Effect of 0.025% atropine on ocular biometry changes during accommodation
Ophthalmic and Physiological Optics, Volume 45, Issue 3, Page 865-876, May 2025.Abstract Purpose Low concentration atropine is an effective treatment to slow myopia progression and axial elongation and also reduces accommodation. On‐axis ocular dimensions of the eye change during accommodation; hence, this study aimed to quantify the effect of 0.025% atropine eye drops on accommodation‐induced changes in ocular biometry.
Rohan P. J. Hughes +4 more
wiley +1 more source
A new low-cost, compact, auto-phoropter for refractive assessment in developing countries
Scientific Reports, 2017 Using a phoropter to measure the refractive error is one of the most commonly used methods by ophthalmologists and optometrists. Here, we demonstrate design and fabrication of a portable automatic phoropter with no need for patient’s feedback. The system
Babak Amirsolaimani +4 more
doaj +1 more source
Real-Time Wavefront Sensing at High Resolution with an Electrically Tunable Lens
Sensors, 2023 We have designed, assembled, and evaluated a compact instrument capable of capturing the wavefront phase in real time, across various scenarios. Our approach simplifies the optical setup and configuration, which reduces the conventional capture and ...
Ricardo Oliva-García +4 more
doaj +1 more source
Electric Field Conjugation with the Project 1640 coronagraph
, 2013 The Project 1640 instrument on the 200-inch Hale telescope at Palomar Observatory is a coronagraphic instrument with an integral field spectrograph at the back end, designed to find young, self-luminous planets around nearby stars. To reach the necessary
Baranec, Christoph +27 more
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