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Dynamic Visual Acuity (DVA) Binocular Summation and DVA Performance Factors

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1 Author(s)
Emoto, M. ; Human & Inf. Sci. Res. Div., Sci. & Technol. Res. Labs., Tokyo, Japan

Recent developments in video technology enable us to view wider field-of-view (FOV) images using wide flat-panel displays, as one would a television monitor. New video systems with high resolution beyond HDTV have been proposed, but it is not clear that their motion picture quality will be sufficient if traditional video system frame rates are used. In the assessment of picture quality, it is recommended to screen viewers' static visual acuity (SVA), but not their dynamic visual acuity (DVA). Furthermore, the methodology to measure the DVA appropriate for the participants in such an assessment of picture quality has not yet been clearly established. In this paper, we have studied, experimentally, the changes in DVA performance by looking at differences in DVA measurement conditions as the first step to establish the methodology. We successfully verified the improvement of DVA performance in binocular viewing compared to monocular viewing. We also looked at the differences in DVA performance as a function of viewing conditions, including eye rotation direction (nasal or temporal direction), shape of the visual target (a Landolt C or E chart), ocular dominance (dominant or non-dominant eye), and the anisotropy or the difference in target orientation of a laterally moving target.

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Display Technology, Journal of  (Volume:6 ,  Issue: 6 )