DocumentCode :
3377647
Title :
PSNRr,f -MOSr: An easy-to-compute multiuser perceptual video quality measure
Author :
Hu, Jing ; Choudhury, Sayantan ; Gibson, Jerry D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Santa Barbara, CA, USA
fYear :
2009
fDate :
29-31 July 2009
Firstpage :
116
Lastpage :
120
Abstract :
In this paper, we propose a new statistical objective perceptual video quality measure PSNRr,f-MOSr. PSNRr,f is defined as the PSNR achieved by f% of the frames in each one of the r% of the transmissions over a network. This quantity has the potential to capture the performance loss due to damaged frames in a particular video sequence (f%), as well asto indicate the probablity of a user experiencing a specified quality over the channel (r%). The percentage of transmissions also has the interpretation as what percentage out of many video users who access the same channel, would experience a given video quality. A subjective experiment is conducted to establish a linear equation connecting PSNRr,f=90% and MOSr, the mean opinion score (MOS) achieved by r% of the transmissions. It is shown from this subjective experiment that PSNRf=90% correlates much better with the delivered perceptual video quality than the average PSNR across all frames of a video, and is a good representation of perceptual quality of a video transmitted over networks with possible transmission errors.
Keywords :
video coding; mean opinion score; multiuser perceptual video quality measure; peak signal to noise ratio; statistical objective perceptual video quality measure; video sequence; Computer errors; Degradation; Distortion measurement; Equations; Humans; Joining processes; PSNR; Performance loss; Video compression; Video sequences;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Quality of Multimedia Experience, 2009. QoMEx 2009. International Workshop on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-4370-3
Electronic_ISBN :
978-1-4244-4370-3
Type :
conf
DOI :
10.1109/QOMEX.2009.5246965
Filename :
5246965
Link To Document :
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