Results 71 to 80 of about 6,949 (194)
Automatic Method for Identifying Photospheric Bright Points and Granules Observed by Sunrise
, 2014 In this study, we propose methods for the automatic detection of photospheric features (bright points and granules) from ultra-violet (UV) radiation, using a feature-based classifier.
Amiri, Ali +3 more
core +1 more source
Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems
Laser &Photonics Reviews, Volume 19, Issue 21, November 6, 2025.This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley +1 more source
Coronagraphic phase diversity: performance study and laboratory demonstration
, 2013 The final performance of current and future instruments dedicated to exoplanet detection and characterization (such as SPHERE on the European Very Large Telescope, GPI on Gemini North, or future instruments on Extremely Large Telescopes) is limited by ...
Mugnier, L. M. +2 more
core +3 more sources
Zernike polynomials for photometric characterization of LEDs [PDF]
Journal of Optics, 2016 Kuala Lumpur, Malaysia, 23-26 April ...
Velázquez, J.L. +4 more
openaire +3 more sources
Automated alignment of XFEL nanofocusing mirrors via wavefront optimization
Journal of Synchrotron Radiation, Volume 32, Issue 6, Page 1534-1538, November 2025.An automated alignment system for nanofocusing Kirkpatrick–Baez mirrors has been developed at SACLA. A wavefront optimization technique routinely provides nanofocused XFEL beams.An automated alignment procedure, based on wavefront measurement with a single‐grating interferometer, has been developed for precise tuning of Kirkpatrick–Baez nanofocusing ...
Jumpei Yamada +5 more
wiley +1 more source
, 2019 Digital aberration measurement and removal play a prominent role in computational imaging platforms aimed at achieving simple and compact optical arrangements.
Huang, Xizhi +5 more
core +1 more source
Impact of contact lens correction on wavefront aberrations and vision quality in keratoconus
Ophthalmic and Physiological Optics, Volume 45, Issue 7, Page 1811-1828, November 2025.Abstract Purpose To review the optical principles of contact lens correction in keratoconus, with a focus on residual ocular wavefront error and its impact on vision performance. Findings Corneal rigid gas permeable (RGP) contact lenses, commonly used in keratoconus management, often fail to improve vision quality to levels observed in non‐diseased ...
Gavin Swartz +3 more
wiley +1 more source
Optimal designs for statistical analysis with Zernike polynomials [PDF]
n.a.
Dette, Holger +2 more
core
Incoherent Digital Holography Empowered by Wavefront and Information Engineering: A Review
Advanced Photonics Research, Volume 6, Issue 10, October 2025.Advancements in incoherent digital holography (IDH) have been achieved via wavefront engineering (using spatial light modulators, diffractive optics, and metasurfaces) and information engineering (using compressive sensing and deep learning). This paper presents an overview of IDH with wavefront and information engineering, paving the way toward its ...
Teruyoshi Nobukawa
wiley +1 more source
Zernike phase spatial filter for measuring the aberrations of the optical structures of the eye
Journal of Biomedical Photonics & Engineering, 2015 To measure directly the wavefront aberration coefficients, we propose to use the multi-order diffractive element fitted with the set of Zernike polynomials. Polynomials of lowest degree describe defocusing (ametropy) and astigmatism.
Svetlana N. Khonina +2 more
doaj +1 more source