Results 61 to 70 of about 68,177 (239)

Enhancement of glossiness perception by retinal-image motion: additional effect of head-yoked motion parallax.

open access: yesPLoS ONE, 2013
It has been argued that when an observer moves, a contingent retinal-image motion of a stimulus would strengthen the perceived glossiness. This would be attributed to the veridical perception of three-dimensional structure by motion parallax. However, it
Yusuke Tani   +5 more
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

Parallax of PSR J1744-1134 and the Local Interstellar Medium [PDF]

open access: yes, 1999
We present the annual trigonometric parallax of PSR J1744-1134 derived from an analysis of pulse times of arrival. The measured parallax, pi = 2.8+/-0.3 mas ranks among the most precisely determined distances to any pulsar. The parallax distance of 357+/-
Becker W.   +16 more
core   +2 more sources

Stereoscopic Estimation of Volcanic Ash Cloud-Top Height from Two Geostationary Satellites

open access: yesRemote Sensing, 2016
The characterization of volcanic ash clouds released into the atmosphere during explosive eruptions includes cloud height as a fundamental physical parameter.
Luca Merucci   +3 more
doaj   +1 more source

Simulation of CSST’s astrometric capability

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Introduction: The China Space Station Telescope (CSST) will enter a low Earth orbit around 2024 and operate for 10 years, with seven of those years devoted to surveying the area of the median-to-high Galactic latitude and median-to-high Ecliptic latitude
Zhen-Sen Fu   +12 more
doaj   +1 more source

Parallax and Distance Estimates for Twelve Cataclysmic Variable Stars [PDF]

open access: yes, 2008
We report parallax and distance estimates for twelve more cataclysmic binaries and related objects observed with the 2.4m Hiltner telescope at MDM Observatory. The final parallax accuracy is typically about 1 mas.
Araujo-Betancor   +37 more
core   +3 more sources

Information Parallax

open access: yes, 2007
To effectively use and exchange information among AI systems, a formal specification of the representation of their shared domain of discourse—called an ontology—is indispensable. In this chapter we introduce a special kind of knowledge representation based on a dual view on the universe of discourse and show how it can be used in human activities such
Grootjen, F.A., Weide, T.P. van der
openaire   +2 more sources

Parallax of β Aurigae [PDF]

open access: yesAstronomische Nachrichten, 1891
n ...
openaire   +2 more sources

Image Enhancement of Computational Reconstruction in Diffraction Grating Imaging Using Multiple Parallax Image Arrays

open access: yesSensors, 2020
This paper describes an image enhancement method of computational reconstruction for 3-D images with multiple parallax image arrays in diffraction grating imaging. A 3-D imaging system via a diffraction grating provides a parallax image array (PIA) which
Jae-Young Jang, Hoon Yoo
doaj   +1 more source

The Frequency Distribution of Some Measured Parallaxes and of the Parallaxes Themselves [PDF]

open access: yesProceedings of the National Academy of Sciences, 1925
It is well known that the frequency functions of a set of quantities and of their measures are different ; if the error of measurement is comparable in magnitude to the quantity determined, they nmay be decidedly dissimilar. In the case of good photographic parallaxes the reported probable errors average about eight one-thousandths of a second of arc ...
Edwin B. Wilson, Willem J. Luyten
openaire   +3 more sources

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