1992 Fiscal Year Final Research Report Summary
Visual Fatigue cased by Three Dimensional Display Using Binocular Disparity
| Project/Area Number |
02650035
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
物理計測・光学
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| Research Institution | Kanagawa Institute of Technology |
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Principal Investigator |
KAWARA Tetsuo Kanagawa Institute of Technology Dep. of Faculty, Professor, 工学部, 教授 (40112776)
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| Co-Investigator(Kenkyū-buntansha) |
SHIMADA Youichi Kanagawa Institute of Technology Dep. of Faculty, Professor, 工学部, 教授 (50113155)
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| Project Period (FY) |
1990 – 1992
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| Keywords | Binocular disparity / Three dimensional display / Visual fatigue / Eye movement / Accommodative response / Visual evoked potentials / Random dot stereogram / Binocular fusion |
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| Research Abstract |
We constructed the stereoscopic vision system displaying arbitrary binocular disparities by using a personal computer. The subjects wear red-blue filter glasses or liquid crystal shutter glasses. The subjective response(fusional time) and objective responses(eye movement, accommodative response and visual evoked potentials) induced by some wireframe and randomdot stereograms have been measured.
The wireframe stereogram was fused easily within 2 degrees in disparity. Disparity in randomdot stereogram made the fusional time longer. The time lags on the fusion or on the eye-movement would be related to the visual fatigue after seeing stereograms. Our accommodative response was decreased remarkably after stereographic VDT works. Three dimensional VDT works with red-blue filters influenced the accommodative velocity to be slower. On the other hand, that works with liquid crystal shutters affected the accommodative latency additionally.
It would be important to estimate the physiological responses and the visual fatigue induced by the virtual environment.
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