TY  - GEN
ID  - discovery20256
SP  - 829 
TI  - Can small be beautiful? assessing image resolution requirements for mobile TV
N1  - "©  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."
N2  - 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.
UR  - http://dx.doi.org/10.1145/1101149.1101331
A1  - Knoche, H
A1  - McCarthy, JD
A1  - Sasse, MA
AV  - public
Y1  - 2005///
SN  - 1595930442
EP  -  838
ER  -