Mr. Xuefei Li Profile

Xuefei Li

at Beijing Univ of Posts and Telecommunications

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Proceedings Article | 10 April 2018 Paper

Research on quality metrics of wireless adaptive video streaming

Xuefei Li

Proceedings Volume 10615, 1061551 (2018) https://doi.org/10.1117/12.2302493

KEYWORDS: Video, Molybdenum, Video processing, Internet, Image segmentation, Image quality, Switching, Performance modeling, Signal to noise ratio, Networks

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With the development of wireless networks and intelligent terminals, video traffic has increased dramatically. Adaptive video streaming has become one of the most promising video transmission technologies. For this type of service, a good QoS (Quality of Service) of wireless network does not always guarantee that all customers have good experience. Thus, new quality metrics have been widely studies recently. Taking this into account, the objective of this paper is to investigate the quality metrics of wireless adaptive video streaming. In this paper, a wireless video streaming simulation platform with DASH mechanism and multi-rate video generator is established. Based on this platform, PSNR model, SSIM model and Quality Level model are implemented. Quality Level Model considers the QoE (Quality of Experience) factors such as image quality, stalling and switching frequency while PSNR Model and SSIM Model mainly consider the quality of the video. To evaluate the performance of these QoE models, three performance metrics (SROCC, PLCC and RMSE) which are used to make a comparison of subjective and predicted MOS (Mean Opinion Score) are calculated. From these performance metrics, the monotonicity, linearity and accuracy of these quality metrics can be observed.

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