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Impact of Display Pixel-Aperture Ratio on Perceived Roughness, Glossiness, and Transparency
Kosei Aketagawa1, Midori Tanaka2, Takahiko Horiuchi2
1Graduate School of Science and Engineering, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan.
Journal of Imaging
|April 25, 2025
Summary
The pixel-aperture ratio significantly impacts perceived glossiness and transparency. While roughness perception varied, a subset of observers showed strong effects for all visual attributes with a 100% pixel-aperture ratio.
Area of Science:
- Visual perception
- Display technology
- Material appearance
Background:
- Shitsukan, encompassing roughness, glossiness, and transparency, is vital for accurate object reproduction in manufacturing and imaging.
- Understanding visual appearance perception is crucial for advancing display and imaging technologies.
Purpose of the Study:
- To experimentally investigate the effect of pixel-aperture ratio on the perception of roughness, glossiness, and transparency.
- To determine how different pixel-aperture ratios influence the visual attributes of displayed objects.
Main Methods:
- A visual evaluation experiment using natural images presented on stimuli with 100% and 6% pixel-aperture ratios.
- Utilized an RGB sub-pixel array for image presentation.
- Employed clustering analysis to identify observer groups based on perceptual responses.
Main Results:
- A statistically significant effect of pixel-aperture ratio was observed on glossiness and transparency perception, with the 100% condition showing a greater impact than the 6% condition.
- Roughness perception showed significant inter-observer variability, with no overall statistically significant effect of pixel-aperture ratio.
- One observer cluster favoring the 100% pixel-aperture ratio demonstrated large effect sizes across all perceptual attributes (roughness, glossiness, transparency).
Conclusions:
- Pixel-aperture ratio significantly influences the perception of glossiness and transparency, with higher ratios yielding more pronounced effects.
- Individual observer differences and image characteristics modulate the impact of pixel-aperture ratio on perceived visual appearance.
- Further research into observer clustering and image properties is warranted to fully understand Shitsukan perception in display technologies.
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