Relationship between resolution and impression for ultra-high-resolution images

• Published in: 2017 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) pp. 1 - 4
• Main Authors: Shishikui, Yoshiaki, Sawahata, Yasuhito
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.06.2017
• Subjects: Indexes; psychological effect; resolution; subjective evaluation; UHDTV
• ISSN: 2155-5052
• DOI: 10.1109/BMSB.2017.7986198

This study investigates the psychological effects of viewing ultra-high-definition images. Many subjective evaluation experiments assessing image qualities have been conducted. However, the psychological effects provided by viewing ultra-high-definition images have not been well investigated, especially under non-standard viewing conditions (i.e., viewing conditions approaching the resolution limit of the human eyes). Although a higher image resolution has been reported to affect the sense of realness, more impressive factors that appeal to general viewers have not been examined. This study conducted subjective evaluation experiments, in which images with different resolutions using familiar subjects were presented for viewers, and their ratings of impressions were obtained. We found an enhancement of impressions in "beautiful" or "delicious" along with an increase of the resolutions of the presented images. Furthermore, the tendency of this impression enhancement was observed even from a viewing distance twice the conventional standard viewing distance.