TY - GEN
T1 - Influence of viewing device and soundtrack in HDTV on subjective video quality
AU - Redl, Arne
AU - Keimel, Christian
AU - Diepold, Klaus
PY - 2012
Y1 - 2012
N2 - Today in many homes big TV screens and hifi systems are common. But is the perception of subjective video quality under professional test conditions the same as at home? Therefore we examined two things: How large is the influence of the presentation device but also the influence of the soundtrack, both in HDTV (1080p50). Previous work has shown that a difference is noticeable, but there have not been studies with consumer devices, yet. It was also shown that there is an influence of the soundtrack, but only in SDTV or lower resolutions. Therefore we conducted subjective video tests: One test with different devices, a 23-inch-reference monitor, a high quality 56-inch-LCD-TV and an HD-projector, and one test in which we presented a soundtrack on a 7.1-channel hifi system in addition to the HD-projector. The results show two things: First the test subjects had a higher quality of experience with the consumer devices than with the reference monitor, although the video quality of the reference monitor itself was rated better in an additional questionnaire and the mean opinion score (MOS). The second result is that there is no significant difference in the MOS between showing the videos on the projector with or without sound.
AB - Today in many homes big TV screens and hifi systems are common. But is the perception of subjective video quality under professional test conditions the same as at home? Therefore we examined two things: How large is the influence of the presentation device but also the influence of the soundtrack, both in HDTV (1080p50). Previous work has shown that a difference is noticeable, but there have not been studies with consumer devices, yet. It was also shown that there is an influence of the soundtrack, but only in SDTV or lower resolutions. Therefore we conducted subjective video tests: One test with different devices, a 23-inch-reference monitor, a high quality 56-inch-LCD-TV and an HD-projector, and one test in which we presented a soundtrack on a 7.1-channel hifi system in addition to the HD-projector. The results show two things: First the test subjects had a higher quality of experience with the consumer devices than with the reference monitor, although the video quality of the reference monitor itself was rated better in an additional questionnaire and the mean opinion score (MOS). The second result is that there is no significant difference in the MOS between showing the videos on the projector with or without sound.
KW - Presentation device
KW - Soundtrack
KW - Subjective video quality
UR - https://www.scopus.com/pages/publications/84856707065
U2 - 10.1117/12.907015
DO - 10.1117/12.907015
M3 - Conference contribution
AN - SCOPUS:84856707065
SN - 9780819489401
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Proceedings of SPIE-IS and T Electronic Imaging - Image Quality and System Performance IX
T2 - Image Quality and System Performance IX
Y2 - 24 January 2012 through 26 January 2012
ER -