Results 11 to 20 of about 26,934 (278)

A Parallax Shift Effect Correction Based on Cloud Height for Geostationary Satellites and Radar Observations

open access: yesRemote Sensing, 2020
The effect of cloud parallax shift occurs in satellite imaging, particularly for high angles of satellite observations. This study demonstrates new methods of parallax effect correction for clouds observed by geostationary satellites.
Tomasz Bieliński
doaj   +2 more sources

PFT-SSR: Parallax Fusion Transformer for Stereo Image Super-Resolution [PDF]

open access: yesIEEE International Conference on Acoustics, Speech, and Signal Processing, 2023
Stereo image super-resolution aims to boost the performance of image super-resolution by exploiting the supplementary information provided by binocular systems.
Hansheng Guo   +4 more
semanticscholar   +1 more source

A million binaries from Gaia eDR3: sample selection and validation of Gaia parallax uncertainties [PDF]

open access: yes, 2021
We construct from Gaia eDR3 an extensive catalog of spatially resolved binary stars within $\approx$ 1 kpc of the Sun, with projected separations ranging from a few au to 1 pc. We estimate the probability that each pair is a chance alignment empirically,
K. El-Badry, H. Rix, T. Heintz
semanticscholar   +1 more source

Parallax Systematics and Photocenter Motions of Benchmark Eclipsing Binaries in Gaia EDR3 [PDF]

open access: yes, 2021
Previous analyses of various standard candles observed by the Gaia satellite have reported statistically significant systematics in the parallaxes that have improved from ∼250 μas in the first data release (DR1) to 50–80 μas in the second data release ...
K. Stassun, G. Torres
semanticscholar   +1 more source

Distance estimates for AGB stars from parallax measurements [PDF]

open access: yesAstronomy & Astrophysics, 2022
Estimating the distances to asymptotic giant branch (AGB) stars using optical measurements of their parallaxes is not straightforward because of the large uncertainties introduced by their dusty envelopes, their large angular sizes, and their surface ...
M. Andriantsaralaza   +3 more
semanticscholar   +1 more source

Parallax Attention for Unsupervised Stereo Correspondence Learning [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2020
Stereo image pairs encode 3D scene cues into stereo correspondences between the left and right images. To exploit 3D cues within stereo images, recent CNN based methods commonly use cost volume techniques to capture stereo correspondence over large ...
Longguang Wang   +6 more
semanticscholar   +1 more source

Symmetric Parallax Attention for Stereo Image Super-Resolution [PDF]

open access: yes2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2020
Although recent years have witnessed the great advances in stereo image super-resolution (SR), the beneficial information provided by binocular systems has not been fully used.
Yingqian Wang   +5 more
semanticscholar   +1 more source

Gaia EDR3 Parallax Zero-point Offset Based on W Ursae Majoris-type Eclipsing Binaries [PDF]

open access: yesAstrophysical Journal Letters, 2021
We independently determine the zero-point offset of the Gaia early Data Release-3 (EDR3) parallaxes based on ∼110,000 W Ursae Majoris (EW)-type eclipsing binary systems.
F. Ren   +5 more
semanticscholar   +1 more source

The parallax zero-point offset from Gaia EDR3 data [PDF]

open access: yesAstronomy & Astrophysics, 2021
The second data release of \it Gaia \rm revealed a parallax zero point offset of $-0.029$~mas based on quasars. The value depended on the position on the sky, and also likely on magnitude and colour.
M. Groenewegen
semanticscholar   +1 more source

The Parallax of ω Centauri Measured from Gaia EDR3 and a Direct, Geometric Calibration of the Tip of the Red Giant Branch and the Hubble Constant [PDF]

open access: yes, 2020
We use data from the ESA Gaia mission Early Data Release 3 (EDR3) to measure the trigonometric parallax of ω Cen, the first high-precision parallax measurement for the most massive globular cluster in the Milky Way. We use a combination of positional and
J. Soltis, S. Casertano, A. Riess
semanticscholar   +1 more source

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