TY - GEN
T1 - On measuring the perceptual quality of video streams over lossy wireless networks
AU - Politis, Ilias
AU - Tsagkaropoulos, Michail
AU - Dagiuklas, Tasos
AU - Dounis, Lampros
PY - 2012
Y1 - 2012
N2 - This paper studies the perceptual quality of video streams over lossy wireless networks. The focus is on investigating the impact on the perceived video quality of both physical error impairments and packet losses due to network congestion, by using objective and subjective evaluation methods. Extensive video quality assessments have shown that packet losses due to congestion are more severe than packet losses due to the physical error on the objective video quality. Furthermore, the comparison of MOS among different spatial resolution video sequences of the same bit rate indicates that a better perceived video quality can be achieved for lower resolution when the network is characterized by both high BER and network load.
AB - This paper studies the perceptual quality of video streams over lossy wireless networks. The focus is on investigating the impact on the perceived video quality of both physical error impairments and packet losses due to network congestion, by using objective and subjective evaluation methods. Extensive video quality assessments have shown that packet losses due to congestion are more severe than packet losses due to the physical error on the objective video quality. Furthermore, the comparison of MOS among different spatial resolution video sequences of the same bit rate indicates that a better perceived video quality can be achieved for lower resolution when the network is characterized by both high BER and network load.
KW - Mean Opinion Score (MOS)
KW - Peak Signal to Noise Ratio (PSNR)
KW - Simultaneous Double Stimulus for Continuous Evaluation method (SDSCE)
KW - video quality estimation (VQE)
KW - video streaming
KW - wireless networks
UR - http://www.scopus.com/inward/record.url?scp=84869598709&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-30419-4_4
DO - 10.1007/978-3-642-30419-4_4
M3 - Conference contribution
AN - SCOPUS:84869598709
SN - 9783642304187
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
SP - 46
EP - 54
BT - Mobile Multimedia Communications - 7th International ICST Conference, MOBIMEDIA 2011, Revised Selected Papers
T2 - 7th International ICST Conference on Mobile Multimedia Communications, MOBIMEDIA 2011
Y2 - 5 September 2011 through 7 September 2011
ER -