Operating experience of a small six axis motion system inside a domewith a wide angle visual system

1987 ◽  
Author(s):  
A. BARNES
Keyword(s):  
Visual System ◽  
Operating Experience ◽  
Wide Angle ◽  
Motion System

AWAVS, a Research Facility for Defining Flight Trainer Visual System Requirements

1978 ◽  
Vol 22 (1) ◽  
pp. 99-104 ◽  
Author(s):  
Stanley C. Collyer ◽  
Walter S. Chambers
Keyword(s):  
Visual System ◽  
Wide Angle ◽  
Experimental Facility ◽  
Research Facility ◽  
Pilot Performance ◽  
System Parameters ◽  
Systems Research ◽  
Visual Systems ◽  
System Requirements ◽  
And Training

The objective of the Navy's Aviation Wide Angle Visual System (AWAVS) program is to recommend design criteria for future flight simulator visual systems. Research leading to this goal will have two facets: improving visual system technology, and determining the effects of visual system parameters on pilot performance and training. The experimental facility is described, and the behavioral research plans are discussed, with emphasis on the carrier landing studies to be conducted during the first phase of the program.

Moving Base Driving Simulator With Wide Angle Visual System

1984 ◽  
Author(s):  
Staffan Nordmark ◽  
Mats Lidstrom ◽  
Goran Palmkvist
Keyword(s):  
Visual System ◽  
Driving Simulator ◽  
Wide Angle ◽  
Moving Base

A Single System Explains Human Speed Perception

2006 ◽  
Vol 18 (11) ◽  
pp. 1808-1819 ◽  
Author(s):  
Jeroen J. A. van Boxtel ◽  
Raymond van Ee ◽  
Casper J. Erkelens
Keyword(s):  
Visual System ◽  
Computational Models ◽  
Motion Processing ◽  
Single System ◽  
Motion Adaptation ◽  
Low Level ◽  
Psychophysical Data ◽  
Motion System ◽  
Speed Perception ◽  
Direction Information

Motion is fully described by a direction and a speed. The processing of direction information by the visual system has been extensively studied; much less is known, however, about the processing of speed. Although it is generally accepted that the direction of motion is processed by a single motion system, no such consensus exists for speed. Psychophysical data from humans suggest two separate systems processing luminance-based fast and slow speeds, whereas neurophysiological recordings in monkeys generally show continuous speed representation, hinting at a single system. Although the neurophysiological findings hint at a single system, they remain inconclusive as only a limited amount of cells can be measured per study and, possibly, the putative different motion systems are anatomically separate. In three psychophysical motion adaptation experiments, we show that predictions on the basis of the two-motion system hypothesis are not met. Instead, concurrent modeling showed that both here-presented and previous data are consistent with a single system subserving human speed perception. These findings have important implications for computational models of motion processing and the low-level organization of the process.

The Design and Research of the Flight Simulator Motion System and Visual System

2012 ◽  
Vol 442 ◽  
pp. 300-304
Author(s):  
Chun Guang Wang ◽  
Shuai Yue
Keyword(s):  
Visual System ◽  
System Integration ◽  
Integration Method ◽  
Test System ◽  
Flight Simulator ◽  
Automatic Test ◽  
Automatic Test System ◽  
Motion System ◽  
Software And Hardware ◽  
Simulator Motion

Based on the motion system and visual system design of flight simulator, the software and hardware design in motion system and visual system of flight simulator is regared as key problem. The fidelity automatic test system is discussed. The aim is to explore a complex system integration method. The fidelity automatic test system is used to detect the fidelity of motion system and visual system. The results show that the design of motion and visual system is reasonable and the performance can meet demand of fidelity.

Author response for "The brain of the African wild dog. IV . The visual system"

2020 ◽  
Author(s):  
Samson Chengetanai ◽  
Adhil Bhagwandin ◽  
Mads F. Bertelsen ◽  
Therese Hård ◽  
Patrick R. Hof ◽  
...  
Keyword(s):  
Visual System ◽  
Author Response ◽  
African Wild Dog ◽  
Wild Dog ◽  
The Brain

CBED Shadow Images and Cs:Aberration Measurement

1982 ◽  
Vol 40 ◽  
pp. 696-697
Author(s):  
R. W. Carpenter ◽  
I.Y.T. Chan ◽  
J. M. Cowley
Keyword(s):  
Focal Point ◽  
Spherical Aberration ◽  
Optic Axis ◽  
Wide Angle ◽  
Caustic Surface ◽  
Convergent Beam

Wide-angle convergent beam shadow images(CBSI) exhibit several characteristic distortions resulting from spherical aberration. The most prominent is a circle of infinite magnification resulting from rays having equal values of a forming a cross-over on the optic axis at some distance before reaching the paraxial focal point. This distortion is called the tangential circle of infinite magnification; it can be used to align and stigmate a STEM and to determine Cs for the probe forming lens. A second distortion, the radial circle of infinite magnification, results from a cross-over on the lens caustic surface of rays with differing values of ∝a, also before the paraxial focal point of the lens.

Digital differential hysteresis iimage processing displays what the microscope acquires but the eye can't see

1995 ◽  
Vol 53 ◽  
pp. 642-643
Author(s):  
Klaus-Ruediger Peters
Keyword(s):  
Image Processing ◽  
Visual System ◽  
High Precision ◽  
Image Data ◽  
Processing Technology ◽  
Output Data ◽  
Contrast Resolution ◽  
Pixel Intensity ◽  
Data Reading ◽  
Hysteresis Properties

Differential hysteresis processing is a new image processing technology that provides a tool for the display of image data information at any level of differential contrast resolution. This includes the maximum contrast resolution of the acquisition system which may be 1,000-times higher than that of the visual system (16 bit versus 6 bit). All microscopes acquire high precision contrasts at a level of <0.01-25% of the acquisition range in 16-bit - 8-bit data, but these contrasts are mostly invisible or only partially visible even in conventionally enhanced images. The processing principle of the differential hysteresis tool is based on hysteresis properties of intensity variations within an image.Differential hysteresis image processing moves a cursor of selected intensity range (hysteresis range) along lines through the image data reading each successive pixel intensity. The midpoint of the cursor provides the output data. If the intensity value of the following pixel falls outside of the actual cursor endpoint values, then the cursor follows the data either with its top or with its bottom, but if the pixels' intensity value falls within the cursor range, then the cursor maintains its intensity value.

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