Effects of Viewing Ultra-High-Resolution Images With Practical Viewing Distances on Familiar Impressions

• Published in: IEEE transactions on broadcasting Vol. 64; no. 2; pp. 498 - 507
• Main Authors: Shishikui, Yoshiaki, Sawahata, Yasuhito
• Format: Journal Article
• Language: English
• Published: IEEE 01.06.2018
• Subjects: Cameras; Image color analysis; Image resolution; impression; psychological effect; Psychology; resolution; subjective evaluation; UHDTV; Visualization
• DOI: 10.1109/TBC.2018.2829118
• ISSN: 0018-9316

This paper investigated the psychological effects of viewing ultra-high-resolution images. Many subjective evaluation experiments assessing the quality of images have been conducted. However, the psychological effects of viewing ultra-high-resolution images have not been well investigated, especially under non-standard viewing conditions. Although a higher image resolution has been reported to affect the sense of realness, more impressive factors that appeal to the general viewers have not been examined. This paper conducted subjective evaluation experiments, in which images with different resolutions using familiar subjects were presented to viewers with practical viewing distances, and their ratings of impressions were obtained. In addition, we examined the relationship between higher- and lower-order impressions. We found an enhancement of the impressions of "beautiful" or "delicious" with an increase in the resolutions of the presented images. Furthermore, the tendency of this impression enhancement was observed even when viewing it as far as four times the design viewing distance. The results of multiple regression analyses provide insight on the production and processing of ultra-high-resolution images for impression enhancement.