Results 51 to 60 of about 85,937 (304)

Aircraft and Ship Velocity Determination in Sentinel-2 Multispectral Images

open access: yesSensors, 2019
The Sentinel-2 satellites in the Copernicus program provide high resolution multispectral images, which are recorded with temporal offsets up to 2.6 s. Moving aircrafts and ships are therefore observed at different positions due to the multispectral band
Henning Heiselberg
doaj   +1 more source

Properties of Surface Reconstruction Based on Binocular Disparity and Motion Parallax

open access: yesi-Perception, 2011
Binocular disparity and motion parallax are particularly important for our 3D surface perception, and the properties of perceived surfaces are similar when these cues are presented separately.
Aya Shiraiwa, Takefumi Hayashi
doaj   +1 more source

GEOSYNCHRONOUS MICROLENS PARALLAXES [PDF]

open access: yesThe Astrophysical Journal, 2013
12 pages including 3 figures, ApJL in ...
openaire   +3 more sources

A radio parallax to the black hole X-ray binary MAXI J1820+070 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2019
Using the Very Long Baseline Array and the European Very Long Baseline Interferometry Network, we have made a precise measurement of the radio parallax of the black hole X-ray binary MAXI J1820+070, providing a model-independent distance to the source.
P. Atri   +23 more
semanticscholar   +1 more source

The distance to the Vela pulsar gauged with HST parallax oservations [PDF]

open access: yes, 2001
The distance to the Vela pulsar (PSR B0833-45) has been traditionally assumed to be 500 pc. Although affected by a significant uncertainty, this value stuck to both the pulsar and the SNR. In an effort to obtain a model free distance measurement, we have
A. De Luca   +12 more
core   +2 more sources

Tattoo: a multifaceted medium of communication

open access: yesMedieKultur: Journal of Media and Communication Research, 2010
This article suggests the systems theoretical distinction of form/medium as a useful tool for distinguishing social phenomena that might look as if they stem from the same process. This is shown to be the case for the tattoo and tattooing.
Christian Wymann
doaj   +3 more sources

The Sun's Parallax [PDF]

open access: yesNature, 1871
Is there nobody who will perform an act of justice, and ask those who seem to have never known or to have forgotten my doings, to be kind enough not to deprive me of my just claims? When, A.D. 1857, my old method of determining the sun's parallax was again publicly proposed, I thought it somewhat strange, and wondered what could be the reason that it ...
openaire   +2 more sources

Microarcsecond VLBI Pulsar Astrometry with PSRπ II. Parallax Distances for 57 Pulsars [PDF]

open access: yesAstrophysical Journal, 2018
We present the results of PSRπ, a large astrometric project targeting radio pulsars using the Very Long Baseline Array (VLBA). From our astrometric database of 60 pulsars, we have obtained parallax-based distance measurements for all but 3, with a ...
A. Deller   +10 more
semanticscholar   +1 more source

Techniques for Accurate Parallax Measurements for 6.7-GHz Methanol Masers

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.
Bartkiewicz, A.   +15 more
core   +1 more source

The Extreme Microlensing Event OGLE-2007-BLG-224: Terrestrial Parallax Observation of a Thick-Disk Brown Dwarf [PDF]

open access: yes, 2009
Parallax is the most fundamental technique to measure distances to astronomical objects. Although terrestrial parallax was pioneered over 2000 years ago by Hipparchus (ca.
A. Allan   +103 more
core   +5 more sources

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