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Can small be beautiful? assessing image resolution requirements for mobile TV

Knoche, H; McCarthy, JD; Sasse, MA; (2005) Can small be beautiful? assessing image resolution requirements for mobile TV. In: Proceedings of the 13th ACM International Conference on Multimedia. (pp. 829 - 838). Green open access

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Abstract

Mobile TV services are now being offered in several countries, but for cost reasons, most of these services offer material directly recoded for mobile consumption (i.e. without additional editing). The experiment reported in this paper, aims to assess the image resolution and bitrate requirements for displaying this type of material on mobile devices. The study, with 128 participants, examined responses to four different image resolutions, seven video encoding bitrates, two audio bitrates and four content types. The results show that acceptability is significantly lower for images smaller than 168×126, regardless of content type. The effect is more pronounced when bandwidth is abundant, and is due to important detail being lost in the smaller screens. In contrast to previous studies, participants are more likely to rate image quality as unacceptable when the audio quality is high.

Type: Proceedings paper
Title: Can small be beautiful? assessing image resolution requirements for mobile TV
Event: MULTIMEDIA '05
ISBN: 1595930442
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/1101149.1101331
Publisher version: http://dx.doi.org/10.1145/1101149.1101331
Language: English
Additional information: "© ACM 2005. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in Proceedings of the 13th annual ACM international conference on Multimedia , http://dx.doi.org/10.1145/10.1145/1101149.1101331."
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/20256
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