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The Hipparcos parallax for Polaris [PDF]

open access: yesAstronomy & Astrophysics, 2013
This letter follows a recent claim that the Hipparcos parallax for Polaris could be too small by 2.5 mas. It examines in detail the Hipparcos epoch astrometric data for Polaris, as well as the viability of other observations that were put forward to support a larger parallax.
van Leeuwen, Floor
arxiv   +7 more sources

Discerning Parallax Amplitude in Astrometric Microlensing [PDF]

open access: yesThe Astronomical Journal, 2023
Gravitational microlensing is a powerful method for discovering isolated stellar-mass black holes (ISMBHs). These objects make long-duration microlensing events.
Sedighe Sajadian   +2 more
doaj   +2 more sources

A Depth-Enhanced Holographic Super Multi-View Display Based on Depth Segmentation. [PDF]

open access: yesMicromachines (Basel), 2023
A super multi-view (SMV) near-eye display (NED) effectively provides depth cues for three-dimensional (3D) display by projecting multiple viewpoint or parallax images onto the retina simultaneously.
Wang Z, Su Y, Pang Y, Feng Q, Lv G.
europepmc   +2 more sources

Microlens Parallax Asymmetries Toward the LMC [PDF]

open access: yes, 1998
If the microlensing events now being detected toward the Large Magellanic Cloud (LMC) are due to lenses in the Milky Way halo, then the events should typically have asymmetries of order 1% due to parallax from the reflex motion of the Earth. By contrast, if the lenses are in the LMC, the parallax effects should be negligible.
Andrew Gould   +6 more
arxiv   +6 more sources

Techniques for Accurate Parallax Measurements for 6.7-GHz Methanol Masers [PDF]

open access: yes, 2017
The BeSSeL Survey is mapping the spiral structure of the Milky Way by measuring trigonometric parallaxes of hundreds of maser sources associated with high-mass star formation. While parallax techniques for water masers at high frequency (22 GHz) have been well documented, recent observations of methanol masers at lower frequency (6.7 GHz) have revealed
Bartkiewicz, A.   +15 more
arxiv   +3 more sources

Parallax-Tolerant Weakly-Supervised Pixel-Wise Deep Color Correction for Image Stitching of Pinhole Camera Arrays. [PDF]

open access: yesSensors (Basel)
Camera arrays typically use image-stitching algorithms to generate wide field-of-view panoramas, but parallax and color differences caused by varying viewing angles often result in noticeable artifacts in the stitching result. However, existing solutions
Zhang Y   +7 more
europepmc   +2 more sources

XIX. On the parallax of the fixed stars [PDF]

open access: bronzeAbstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London
The object of this paper is to communicate a series of observations made with a new instrument for the purpose of investigating the question of parallax. Though a much longer period of time will be necessary to elucidate this subject in a perfectly satisfactory manner, yet, from the observations already made, it seems highly probable that ...
John Frederick William Herschel
openalex   +9 more sources

Modeling depth from motion parallax with the motion/pursuit ratio

open access: yesFrontiers in Psychology, 2014
The perception of unambiguous scaled depth from motion parallax relies on both retinal image motion and an extra-retinal pursuit eye movement signal. The motion/pursuit ratio represents a dynamic geometric model linking these two proximal cues to the ...
Mark eNawrot   +3 more
exaly   +3 more sources

Light Field Denoising via Anisotropic Parallax Analysis in a CNN Framework

open access: yesIEEE Signal Processing Letters, 2018
Light field (LF) cameras provide perspective information of scenes by taking directional measurements of the focusing light rays. The raw outputs are usually dark with additive camera noise, which impedes subsequent processing and applications.
Jie Chen, Junhui Hou, Lap-pui Chau
exaly   +3 more sources

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