Effect of Retinal Image Motion on Visual Acuity

1961 ◽  
Vol 8 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Olof Bryngdahl
Keyword(s):  
Visual Acuity ◽  
Retinal Image ◽  
Image Motion ◽  
Retinal Image Motion

Retinal Image Motion During Deliberate Fixation

2000 ◽  
Vol 78 (2) ◽  
pp. 131-142 ◽  
Author(s):  
James W. Ness ◽  
Harry Zwick ◽  
Bruce E. Stuck ◽  
David J. Lurid ◽  
Brian J. Lurid ◽  
...  
Keyword(s):  
Retinal Image ◽  
Image Motion ◽  
Retinal Image Motion

Retinal image motion alone does not control disconjugate postsaccadic eye drift

1990 ◽  
Vol 63 (5) ◽  
pp. 999-1009 ◽  
Author(s):  
Z. Kapoula ◽  
L. M. Optican ◽  
D. A. Robinson
Keyword(s):  
Retinal Image ◽  
Human Subjects ◽  
Field Method ◽  
The Other ◽  
Image Motion ◽  
Full Field ◽  
Before And After ◽  
Retinal Image Motion ◽  
Hering’S Law ◽  
Random Dot Pattern

1. In these experiments, postsaccadic ocular drift was induced by postsaccadic motion of the visual scene. In the most important case, the scene was moved in one eye but not the other. Six human subjects viewed the interior of a full-field hemisphere filled with a random-dot pattern. During training, eye movements were recorded by the electrooculogram. A computer detected the end of every saccade and immediately moved the pattern horizontally in the same or, in different experiments, in the opposite direction as the saccade. The pattern motion was exponential with an amplitude of 25% of the size of the antecedent saccade and a time constant of 50 ms. Before and after 3-4 h of such training, movements of both eyes were measured simultaneously by the eye coil-magnetic field method while subjects looked between stationary targets for calibration, explored the visual pattern with saccades, or made saccades in the dark to measure the effects of adaptation on postsaccadic ocular drift. The amplitude of this drift was expressed as a percentage of the size of the antecedent saccade. 2. In monocular experiments, subjects viewed the random-dot pattern with one eye. The other eye was patched. With two subjects, the pattern drifted backward in the direction opposite to the saccade; with the third, it drifted onward. The induced ocular drift was exponential, always in the direction to reduce retinal image motion, had zero latency, and persisted in the dark. After training, drift in the dark changed by 6.7% in agreement with our prior study with binocular vision, which produced a change of 6.0%. 3. In a dichoptic arrangement, one eye regarded the moveable random-dot pattern; the other, through mirrors, saw a different random-dot pattern (with similar spacing, contrast, and distance) that was stationary. These visual patterns were not fuseable and did not evoke subjective diplopia. In this case, the induced change in postsaccadic drift in the same three subjects was only 4.8%. In all cases the changes in postsaccadic drift were conjugate--they obeyed Hering's law. 4. Normal human saccades are characterized by essentially no postsaccadic drift in the abducting eye and a pronounced onward drift (approximately 4%) in the adducting eye. After training, this abduction-adduction asymmetry was preserved in the light and dark with monocular or dichoptic viewing, indicating again that all adaptive changes were conjugate. 5. When the subjects viewed the adapting stimulus after training, the zero-latency, postsaccadic drift always increased from levels in the dark.(ABSTRACT TRUNCATED AT 400 WORDS)

NATURAL RETINAL IMAGE MOTION: ORIGIN AND CHANGE

1981 ◽  
Vol 374 (1 Vestibular an) ◽  
pp. 312-329 ◽  
Author(s):  
H. Collewijn ◽  
A. J. Martins ◽  
R. M. Steinman
Keyword(s):  
Retinal Image ◽  
Image Motion ◽  
Retinal Image Motion

‘Generic-View Principle’ for Three-Dimensional-Motion Perception: Optics and Inverse Optics of a Moving Straight Bar

Perception ◽  
1996 ◽  
Vol 25 (7) ◽  
pp. 797-814 ◽  
Author(s):  
Michiteru Kitazaki ◽  
Shinsuke Shimojo
Keyword(s):  
Visual System ◽  
Motion Perception ◽  
Retinal Image ◽  
General Framework ◽  
Three Dimensional ◽  
Image Motion ◽  
Optical Process ◽  
Retinal Image Motion ◽  
The Subject ◽  
Three Components

The generic-view principle (GVP) states that given a 2-D image the visual system interprets it as a generic view of a 3-D scene when possible. The GVP was applied to 3-D-motion perception to show how the visual system decomposes retinal image motion into three components of 3-D motion: stretch/shrinkage, rotation, and translation. First, the optical process of retinal image motion was analyzed, and predictions were made based on the GVP in the inverse-optical process. Then experiments were conducted in which the subject judged perception of stretch/shrinkage, rotation in depth, and translation in depth for a moving bar stimulus. Retinal-image parameters—2-D stretch/shrinkage, 2-D rotation, and 2-D translation—were manipulated categorically and exhaustively. The results were highly consistent with the predictions. The GVP seems to offer a broad and general framework for understanding the ambiguity-solving process in motion perception. Its relationship to other constraints such as that of rigidity is discussed.

scholarly journals Enhancement of Glossiness Perception by Retinal-Image Motion: Additional Effect of Head-Yoked Motion Parallax

PLoS ONE ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. e54549 ◽  
Author(s):  
Yusuke Tani ◽  
Keisuke Araki ◽  
Takehiro Nagai ◽  
Kowa Koida ◽  
Shigeki Nakauchi ◽  
...  
Keyword(s):  
Retinal Image ◽  
Motion Parallax ◽  
Image Motion ◽  
Retinal Image Motion

Binocular retinal image motion during active head rotation

1980 ◽  
Vol 20 (5) ◽  
pp. 415-429 ◽  
Author(s):  
Robert M. Steinman ◽  
Han Collewijn
Keyword(s):  
Retinal Image ◽  
Head Rotation ◽  
Image Motion ◽  
Retinal Image Motion
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