scholarly journals PERCEIVED DEPTH FROM MOTION PARALLAX: EFFECTS OF THE RELATIVE MOVEMENT OF AN OBSERVER'S HEAD WITH RESPECT TO A STIMULUS DISPLAY

2004 ◽  
Vol 5 (2) ◽  
pp. 1-8
Author(s):  
Shinya SAIDA ◽  
Sachio NAKAMIZO
Keyword(s):  
Motion Parallax ◽  
Stimulus Display ◽  
Relative Movement ◽  
Parallax Effects

Motion Parallax as an Independent Cue for Depth Perception

Perception ◽  
1979 ◽  
Vol 8 (2) ◽  
pp. 125-134 ◽  
Author(s):  
Brian Rogers ◽  
Maureen Graham
Keyword(s):  
Depth Perception ◽  
Close Agreement ◽  
Motion Parallax ◽  
Three Dimensional ◽  
Matching Task ◽  
Relative Depth ◽  
Relative Movement ◽  
Random Dot Stereograms ◽  
Random Dot Patterns ◽  
Dimensional Surface

The perspective transformations of the retinal image, produced by either the movement of an observer or the movement of objects in the visual world, were found to produce a reliable, consistent, and unambiguous impression of relative depth in the absence of all other cues to depth and distance. The stimulus displays consisted of computer-generated random-dot patterns that could be transformed by each movement of the observer or the display oscilloscope to simulate the relative movement information produced by a three-dimensional surface. Using a stereoscopic matching task, the second experiment showed that the perceived depth from parallax transformations is in close agreement with the degree of relative image displacement, as well as producing a compelling impression of three-dimensionality not unlike that found with random-dot stereograms.

Cooperative versus competitive concept attainment as a function of sex and stimulus display.

1967 ◽  
Vol 7 (4, Pt.1) ◽  
pp. 398-402 ◽  
Author(s):  
Patrick R. Laughlin ◽  
Richard P. Mcglynn
Keyword(s):  
Stimulus Display ◽  
Concept Attainment

scholarly journals Simulative investigation of ring creep on a planetary bearing of a wind turbine gearbox

2021 ◽  
Author(s):  
Jonas Gnauert ◽  
Felix Schlüter ◽  
Georg Jacobs ◽  
Dennis Bosse ◽  
Stefan Witter
Keyword(s):  
Experimental Data ◽  
Finite Element Method ◽  
Sensitivity Analysis ◽  
Planetary Gear ◽  
The Finite Element Method ◽  
Relative Movement ◽  
Wind Turbine Gearbox ◽  
Interference Fit ◽  
Planetary Gears ◽  
Module Coefficient

AbstractWind turbines (WT) must be further optimized concerning availability and reliability. One of the major reasons of WT downtime is the failure of gearbox bearings. Some of these failures occur, due to the ring creep phenomenon, which is mostly detected in the planetary bearings. The ring creep phenomenon describes a relative movement of the outer ring to the planetary gear. In order to improve the understanding of ring creep, the finite element method (FEM) is used to simulate ring creep in planetary gears. First, a sensitivity analysis is carried out on a small bearing size (NU205), to characterize relevant influence parameters for ring creep—considered parameters are teeth module, coefficient of friction, interference fit and normal tooth forces. Secondly, a full-scale planetary bearing (SL185030) of a 1MW WT is simulated and verified with experimental data.

scholarly journals Spatial multiplexing holographic combiner for glasses-free augmented reality

Nanophotonics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 3003-3010
Author(s):  
Jiacheng Shi ◽  
Wen Qiao ◽  
Jianyu Hua ◽  
Ruibin Li ◽  
Linsen Chen
Keyword(s):  
Augmented Reality ◽  
Large Scale ◽  
Motion Parallax ◽  
Visible Spectrum ◽  
Physical World ◽  
Spatial Multiplexing ◽  
White Balance ◽  
Full Color ◽  
Entire Visible Spectrum ◽  
3D Scene

AbstractGlasses-free augmented reality is of great interest by fusing virtual 3D images naturally with physical world without the aid of any wearable equipment. Here we propose a large-scale spatial multiplexing holographic see-through combiner for full-color 3D display. The pixelated metagratings with varied orientation and spatial frequency discretely reconstruct the propagating lightfield. The irradiance pattern of each view is tailored to form super Gaussian distribution with minimized crosstalk. What’s more, spatial multiplexing holographic combiner with customized aperture size is adopted for the white balance of virtually displayed full-color 3D scene. In a 32-inch prototype, 16 views form a smooth parallax with a viewing angle of 47°. A high transmission (>75%) over the entire visible spectrum range is achieved. We demonstrated that the displayed virtual 3D scene not only preserved natural motion parallax, but also mixed well with the natural objects. The potential applications of this study include education, communication, product design, advertisement, and head-up display.

scholarly journals Inhibition of the relative movement of actin and myosin by caldesmon and calponin.

1992 ◽  
Vol 267 (22) ◽  
pp. 15886-15892
Author(s):  
V.P. Shirinsky ◽  
K.G. Biryukov ◽  
J.M. Hettasch ◽  
J.R. Sellers
Keyword(s):  
Relative Movement
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