ITE Transactions on Media Technology and Applications
Online ISSN : 2186-7364
ISSN-L : 2186-7364
Regular Section
[papers] Viewers' Susceptibility to Image Blurs in Watching Ultra-high-definition TV Correlates with Their Dynamic Visual Acuity
Masaki EmotoYu FangSatoshi Shioiri
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2019 Volume 7 Issue 2 Pages 103-110

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Abstract

A major problem in the subjective evaluation of TV image quality is individual variability among participants. The large individual differences in the susceptibility to image blurring result in imprecise evaluations and loss of power to detect statistically significant differences between experimental conditions. In image quality assessments of traditional televisions, the observers' visual acuities (VA) should be screened. For emerging TV systems with wide field-of-view (FOV), in which objects move quickly relative to the display frame, it is unclear whether screening viewers' VAs is sufficient or not. In the wide FOV TV image quality evaluations, screening of the dynamic visual acuity (DVA) might be effective to control for the individual differences. We show here that a significant correlation between the number of blurred frames reported and the observer's DVA. Therefore, DVA screening is important to avoid an imprecise evaluation and to detect statistical significance between experimental conditions.

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© 2019 The Institute of Image Information and Television Engineers
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