Results 31 to 40 of about 1,371,529 (165)

Author Correction: Deep learning for high-resolution and high-sensitivity interferometric phase contrast imaging

open access: yesScientific Reports, 2021
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Seho Lee   +6 more
doaj   +1 more source

Angular Differential Imaging: A Powerful High‐Contrast Imaging Technique [PDF]

open access: yesThe Astrophysical Journal, 2006
Angular differential imaging is a high-contrast imaging technique that reduces quasi-static speckle noise and facilitates the detection of nearby companions. A sequence of images is acquired with an altitude/azimuth telescope while the instrument field derotator is switched off.
Marois, C   +4 more
openaire   +2 more sources

A HIGH-CONTRAST IMAGING ALGORITHM: OPTIMIZED IMAGE ROTATION AND SUBTRACTION [PDF]

open access: yesThe Astrophysical Journal, 2015
18 pages, 8 eps figures, 1 table, accepted for publication in The Astrophysical Journalon on Jan.
Jiangpei Dou   +5 more
openaire   +2 more sources

Monochromatic verification of high-contrast imaging with an occulter

open access: yesOptics Express, 2013
One of the most promising concepts of starlight suppression for direct imaging of exoplanets is flying a specially-shaped external occulter in formation with a space telescope. Here we present contrast performance verification of an occulter design scaled to laboratory-size using Fresnel numbers corresponding to the space design.
Dan, Sirbu   +2 more
openaire   +2 more sources

The Nonlinear Statistics of High-Contrast Patches in Natural Images [PDF]

open access: yesInternational Journal of Computer Vision, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lee, Ann B.   +2 more
openaire   +4 more sources

Limits of Adaptive Optics for High‐Contrast Imaging [PDF]

open access: yesThe Astrophysical Journal, 2005
31 pages, 17 figures, published in ApJ. Updated on Sep 29, 2005: Corrected error in equ. (29) and changed figures accordingly (thanks to T. Fusco for spotting the mistake)
openaire   +2 more sources

High-Contrast Imaging: Hide and Seek with Exoplanets

open access: yesGalaxies
So far, most of the about 5700 exoplanets have been discovered mainly with radial velocity and transit methods. These techniques are sensitive to planets in close orbits, not being able to probearge star–planet separations.
Riccardo Claudi, Dino Mesa
doaj   +1 more source

High contrast two-photon imaging of fingermarks

open access: yesScientific Reports, 2016
AbstractOptically-acquired fingermarks are widely used as evidence across law enforcement agencies as well as in the courts of law. A common technique for visualizing latent fingermarks on nonporous surfaces consists of cyanoacrylate fuming of the fingerprint material, followed by impregnation with a fluorescent dye, which under ultra violet (UV ...
Caleb R. Stoltzfus, Aleksander Rebane
openaire   +2 more sources

SCExAO/CHARIS Spectroscopic Characterization of Cloudy L/T Transition Companion Brown Dwarf HIP 93398 B

open access: yesThe Astrophysical Journal
Brown dwarfs with measured dynamical masses and spectra from direct imaging are benchmarks that anchor substellar atmosphere cooling and evolution models.
Briley L. Lewis   +12 more
doaj   +1 more source

Novel Gd nanoparticles enhance vascular contrast for high-resolution magnetic resonance imaging. [PDF]

open access: yesPLoS ONE, 2010
Gadolinium (Gd), with its 7 unpaired electrons in 4f orbitals that provide a very large magnetic moment, is proven to be among the best agents for contrast enhanced MRI.
Tot Bui   +5 more
doaj   +1 more source

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