Title :
Perceptual quality assessment on B-D tradeoff of P2P assisted layered video streaming
Author :
Wang, Jingjing ; Fu, Tom Z J ; Chiu, Dah Ming ; Lei, Zhibin
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
In this paper, we study the impact of the image quality (hence, the video streaming bit-rate) and the chunk-level impairment (hence the playback discontinuity) on the perceptual assessment of the viewing experience of P2P layered video streaming services. Through subjective QoE experiments, we have obtained several interesting findings and useful insights. The results clearly reveal the tradeoffs between streaming bit-rate (B) and discontinuity (D) on the MOS under certain network condition. It is also showed that B-D tradeoff pattern is video content dependant. Based on these observations, a heuristic model is proposed to derive a group of MOS contours. This type of contours have practical usage and can help selecting suitable video streaming bit-rate (layer) for playback so as to maximize the perceptual QoE of the end users.
Keywords :
peer-to-peer computing; video signal processing; video streaming; B-D tradeoff pattern; P2P assisted layered video streaming; P2P layered video streaming service; chunk-level impairment; heuristic model; image quality; network condition; perceptual quality assessment; playback discontinuity; subjective QoE experiment; video content dependant; video streaming bit-rate; viewing experience; Delay; Humans; Multimedia communication; Peer to peer computing; Quality assessment; Streaming media;
Conference_Titel :
Visual Communications and Image Processing (VCIP), 2011 IEEE
Conference_Location :
Tainan
Print_ISBN :
978-1-4577-1321-7
Electronic_ISBN :
978-1-4577-1320-0
DOI :
10.1109/VCIP.2011.6115961