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Proceedings Paper

Presence and preferable viewing conditions when using an ultrahigh-definition large-screen display
Author(s): Kenichiro Masaoka; Masaki Emoto; Masayuki Sugawara; Fumio Okano
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Paper 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.

Paper Details

Date Published: 17 January 2005
PDF: 10 pages
Proc. SPIE 5668, Image Quality and System Performance II, (17 January 2005); doi: 10.1117/12.586619
Show Author Affiliations
Kenichiro Masaoka, NHK Science and Technical Research Labs. (Japan)
Masaki Emoto, NHK Science and Technical Research Labs. (Japan)
Masayuki Sugawara, NHK Science and Technical Research Labs. (Japan)
Fumio Okano, NHK Science and Technical Research Labs. (Japan)

Published in SPIE Proceedings Vol. 5668:
Image Quality and System Performance II
Rene Rasmussen; Yoichi Miyake, Editor(s)

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