TY - GEN
T1 - Perceptual quality of video with quantization variation
T2 - 2012 19th IEEE International Conference on Image Processing, ICIP 2012
AU - Ou, Yen Fu
AU - Zeng, Huiqi
AU - Wang, Yao
PY - 2012
Y1 - 2012
N2 - This work investigates the impact of temporal variation of quantization stepsize (QS) on perceptual video quality. Among many dimensions of QS variation, as a first step we focus on videos in which two QS's, alternate over fixed intervals. We present subjective test results, and analyze the influence of several factors (including the QS difference, QS ratio, changing intervals, and video content). According the observation and data analysis, we propose analytical models that relate the perceived quality with the two QS's. Such quality assessment and modeling are essential in making video adaptation decisions when delivering video over dynamically changing wireless links.
AB - This work investigates the impact of temporal variation of quantization stepsize (QS) on perceptual video quality. Among many dimensions of QS variation, as a first step we focus on videos in which two QS's, alternate over fixed intervals. We present subjective test results, and analyze the influence of several factors (including the QS difference, QS ratio, changing intervals, and video content). According the observation and data analysis, we propose analytical models that relate the perceived quality with the two QS's. Such quality assessment and modeling are essential in making video adaptation decisions when delivering video over dynamically changing wireless links.
KW - perceptual video quality
KW - quality metrics
KW - temporal variation
UR - http://www.scopus.com/inward/record.url?scp=84875837803&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875837803&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2012.6467157
DO - 10.1109/ICIP.2012.6467157
M3 - Conference contribution
AN - SCOPUS:84875837803
SN - 9781467325332
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 1505
EP - 1508
BT - 2012 IEEE International Conference on Image Processing, ICIP 2012 - Proceedings
Y2 - 30 September 2012 through 3 October 2012
ER -