Presence and preferable viewing conditions when using an ultrahigh-definition large-screen display

Kenichiro Masaoka; Masaki Emoto; Masayuki Sugawara; Fumio Okano

doi:10.1117/12.586619

17 January 2005 Presence and preferable viewing conditions when using an ultrahigh-definition large-screen display

Kenichiro Masaoka, Masaki Emoto, Masayuki Sugawara, Fumio Okano

Author Affiliations +

Proceedings Volume 5668, Image Quality and System Performance II; (2005) https://doi.org/10.1117/12.586619
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

We are investigating psychological aspects to obtain guidelines for the design of TVs aimed at future high-presence broadcasting. In this study, we performed subjective assessment tests to examine the psychological effects of different combinations of viewing conditions obtained by varying the viewing distance, screen size, and picture resolution (between 4000 and 1000 scan lines). The evaluation images were presented in the form of two-minute programs comprising a sequence of 10 still images, and the test subjects were asked to complete a questionnaire consisting of 20 items relating to psychological effects such as "presence", "adverse effects", and "preferability". It was found that the test subjects reported a higher feeling of presence for 1000-line images when viewed around a distance of 1.5H (less than the standard viewing distance of 3H, which is recommended as a viewing distance for subjective evaluation of image quality for HDTV), and reported a higher feeling of presence for 4000-line images than for 1000-line images. The adverse effects such as "difficulty of viewing" did not differ significantly with resolution, but were evaluated to be lower as the viewing distance increased and tended to saturate at viewing distances above 2H. The viewing conditions were evaluated as being more preferable as the screen size increased, showing that it is possible to broadcast comfortable high-presence pictures using high-resolution large-screen displays.

Citation Download Citation

Kenichiro Masaoka, Masaki Emoto, Masayuki Sugawara, and Fumio Okano "Presence and preferable viewing conditions when using an ultrahigh-definition large-screen display", Proc. SPIE 5668, Image Quality and System Performance II, (17 January 2005); https://doi.org/10.1117/12.586619

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