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Cognitive effect on image quality in full ultra-high definition(8 K)

Title
Cognitive effect on image quality in full ultra-high definition(8 K)
Authors
Park D.Kim Y.Park Y.
Ewha Authors
박영경
SCOPUS Author ID
박영경scopus
Issue Date
2020
Journal Title
Journal of Information Display
ISSN
1598-0316JCR Link
Citation
Journal of Information Display vol. 21, no. 2, pp. 103 - 111
Keywords
8 Kcognitive effectfull ultra-high definitionimage qualityoptical illusion
Publisher
Taylor and Francis Ltd.
Indexed
SCOPUS; KCI scopus
Document Type
Article
Abstract
Resolution for displays are increasing from 4K-UHD to 8K-Full UHD. We conducted a subjective image quality evaluation to compare the image quality between 4 and 8 K by using diverse image stimuli. As a result, we identified perceptual and cognitive characteristics that can be demonstrated in image quality above 8 K. Cognitive and synesthetic factors as well as perceptual factors, and color expression were improved in 8 K image quality. The research findings suggested that both perceptual and cognitive factors are reinforced in 8 K. This tendency was even more reinforced when the main object was placed within the image. Also, the contrast and vividness felt higher at 8 K, of which the vividness influenced the cognitive evaluation of the 8 K image quality. When compared with 4 K, the image quality above 8 K was accompanied by optical illusion, which in turn improved the understanding of the main object. These results suggest that cognitive evaluations for a comprehensive understanding of images may be strengthened at a very high resolution of 8 K or higher beyond the ‘presence’ of 4 K resolution. © 2019, © 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of the Korean Information Display Society.
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DOI
10.1080/15980316.2019.1704895
Appears in Collections:
조형예술대학 > 색채디자인전공 > Journal papers
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