Results 71 to 80 of about 1,162,754 (126)

Deconvolution Techniques in Optical Coherence Tomography: Advancements, Challenges, and Future Prospects

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, Di Mei, Yuanyuan Wei, Chao Xu, Syed Muhammad Tariq Abbasi, Sadia Shakil, Wu Yuan   +6 more
wiley   +1 more source

Extraction and Verification of Seismic Vibration Metrics via Laser Remote Sensing Utilizing Wavefront Sensors

Sensors
Seismic wave analysis is crucial for identifying subsurface formations and geological hazards. In this study, a seismic wave laser remote sensing system based on a Shack–Hartmann wavefront sensor was established by exploiting its high spatial resolution,
Donghua Zhou, Quan Luo, Yun Pan, Yiyou Fan, Haoming Chen, Wei Jiang, Jinshan Su   +6 more
doaj   +1 more source

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, Emily C. Woodman‐Pieterse, Scott A. Read, Stephen J. Vincent, Michael J. Collins   +4 more
wiley   +1 more source

A metric‐based image‐formation model explains the improvement in subjective refraction using temporal defocus waves

Optometry and Vision Science, Volume 102, Issue 4, Page 196-203, April 2025.
SIGNIFICANCE Direct subjective refraction (DSR) is a novel method for refractive error measurements that uses temporal changes in defocus and a flicker minimization task. The computational models developed here are a framework for improving this clinical method.
Victor Rodriguez‐Lopez, Carlos Dorronsoro, Alberto de Castro   +2 more
wiley   +1 more source

Miniaturized Shack-Hartmann Wavefront-Sensors for ELTs [PDF]

, 2015
The miniaturization of wavefront sensors overcomes some of the potential barriers faced by ELTs in implementing large- scale multi-object adaptive optics over large focal surfaces.
Lawrence, Jon, Richards, Sam, Zheng, Jessica, Goodwin, Michael, Leon-Saval, Sergio   +4 more
core   +1 more source

Wavefront aberrations in aging measured with Hartmann‐Shack at 3‐ and 5‐mm pupil sizes

Optometry and Vision Science, Volume 102, Issue 2, Page 61-67, February 2025.
SIGNIFICANCE Visual acuity (VA) depends on many factors. When the goal is to assess retinal health rather than performance, then using a 3‐mm pupil reduces unwanted wavefront aberrations. The axis of astigmatism can still potentially change with age.
Christopher A. Clark, Vamsi Parimi, Ann E. Elsner   +2 more
wiley   +1 more source

Review and experimental comparison of speckle‐tracking algorithms for X‐ray phase contrast imaging

Journal of Synchrotron Radiation, Volume 32, Issue 1, Page 180-199, January 2025.
This review focuses on low‐dose near‐field X‐ray speckle phase imaging in the differential mode introducing the existing algorithms with their specifications and comparing their performances under various experimental conditions.X‐ray speckles have been used in a wide range of experiments, including imaging (and tomography), wavefront sensing, spatial ...
Rafael Celestre, Laurène Quénot, Christopher Ninham, Emmanuel Brun, Luca Fardin   +4 more
wiley   +1 more source

Using Shack-Hartmann wavefront sensors and Zernike coefficients for beam characterisation: numerical procedures [PDF]

, 2017
When using Shack-Hartmann wavefront sensors (SH) and Zernike coefficients (Zs) in applications where the position of the measurement and the point of interest are far apart, as it is common practice in ophthalmic optics, problems in the interpretation of
Arines Piferrer, Justo, Vallmitjana Rico, Santiago, Marzoa Domínguez, Antonio, Acosta, Eduardo   +3 more
core   +1 more source

Hartmann–Shack wavefront sensing without a lenslet array using a digital micromirror device [PDF]

, 2018
The common Hartmann–Shack wavefront sensor makes use of a lenslet array to sample in-parallel optical wavefronts. Here, we introduce a Hartmann–Shack wavefront sensor that employs a digital micromirror device in combination with a single lens for serial ...
Vohnsen, Brian, Carmichael Martins, Alessandra, Qaysi, Salihah, Sharmin, Najnin   +3 more
core   +1 more source