Mobile Multimedia Communications. 7th International ICST Conference, MOBIMEDIA 2011, Cagliari, Italy, September 5-7, 2011, Revised Selected Papers

Research Article

On Measuring the Perceptual Quality of Video Streams over Lossy Wireless Networks

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  • @INPROCEEDINGS{10.1007/978-3-642-30419-4_4,
        author={Ilias Politis and Michail Tsagkaropoulos and Tasos Dagiuklas and Lampros Dounis},
        title={On Measuring the Perceptual Quality of Video Streams over Lossy Wireless Networks},
        proceedings={Mobile Multimedia Communications. 7th International ICST Conference, MOBIMEDIA 2011, Cagliari, Italy, September 5-7, 2011, Revised Selected Papers},
        proceedings_a={MOBIMEDIA},
        year={2012},
        month={5},
        keywords={Simultaneous Double Stimulus for Continuous Evaluation method (SDSCE) Mean Opinion Score (MOS) Peak Signal to Noise Ratio (PSNR) video quality estimation (VQE) video streaming wireless networks},
        doi={10.1007/978-3-642-30419-4_4}
    }
    
  • Ilias Politis
    Michail Tsagkaropoulos
    Tasos Dagiuklas
    Lampros Dounis
    Year: 2012
    On Measuring the Perceptual Quality of Video Streams over Lossy Wireless Networks
    MOBIMEDIA
    Springer
    DOI: 10.1007/978-3-642-30419-4_4
Ilias Politis1,*, Michail Tsagkaropoulos1,*, Tasos Dagiuklas1,*, Lampros Dounis1,*
  • 1: Technological Educational Institute of Messolonghi
*Contact email: ipolitis@ece.upatras.gr, mtsagaro@ece.upatras.gr, ntan@teimes.gr, dounis@gmail.com

Abstract

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.