Visual discomfort with stereo displays: Effects of viewing distance and direction of vergence-accommodation conflict.
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TLDR
A novel volumetric display was used to examine how viewing distance and the sign of the vergence-accommodation conflict affect discomfort and fatigue and help define comfortable viewing conditions for stereo displays.Abstract:
Prolonged use of conventional stereo displays causes viewer discomfort and fatigue because of the vergence-accommodation conflict. We used a novel volumetric display to examine how viewing distance and the sign of the vergence-accommodation conflict affect discomfort and fatigue. In the first experiment, we presented a fixed conflict at short, medium, and long viewing distances. We compared subjects' symptoms in that condition and one in which there was no conflict. We observed more discomfort and fatigue with a given vergence-accommodation conflict at the longer distances. The second experiment compared symptoms when the conflict had one sign compared to when it had the opposite sign at short, medium, and long distances. We observed greater symptoms with uncrossed disparities at long distances and with crossed disparities at short distances. These findings help define comfortable viewing conditions for stereo displays.read more
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References
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Vergence-accommodation conflicts hinder visual performance and cause visual fatigue.
TL;DR: This display is used to evaluate the influence of focus cues on perceptual distortions, fusion failures, and fatigue and shows that when focus cues are correct or nearly correct, the time required to identify a stereoscopic stimulus is reduced, stereoacuity in a time-limited task is increased, and distortions in perceived depth are reduced.
Journal ArticleDOI
Visual comfort of binocular and 3D displays
Frank L. Kooi,Alexander Toet +1 more
TL;DR: In this article, the authors used a wide range of binocular image imperfections that are representative for commonly encountered optical errors (spatial distortions: shifts, magnification, rotation, keystone), imperfect filters (photometric asymmetries: luminance, color, contrast, crosstalk), and stereoscopic disparities).
Journal ArticleDOI
Visual fatigue caused by viewing stereoscopic motion images : Background, theories, and observations
Kazuhiko Ukai,Peter A. Howarth +1 more
TL;DR: The background, theories, and observations on visual stress possibly caused by viewing stereoscopic motion images, including changes in pupillary responses, are reviewed and Evaluation of visual fatigue, particularly in relation to different methods of viewing stereoscope displays is described.
Journal ArticleDOI
A study of visual fatigue and visual comfort for 3D HDTV/HDTV images
TL;DR: It is found that a local low subjective evaluation appeared for both high degree of parallax and amount of motion in the test stereoscopic images, but motion components were very small, the subjective evaluation value was rarely very low.
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E. F. Fincham,J. Walton +1 more
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