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Real-Time Video Quality Assessment of Video Communication Systems  

Kim, Byoung-Yong (LIG Nex1 Avionics R&D Lab.)
Lee, Seon-Oh (Dept. of Computer Engineering, Kwangwoon University)
Jung, Kwang-Su (Dept. of Computer Engineering, Kwangwoon University)
Sim, Dong-Gyu (Dept. of Computer Engineering, Kwangwoon University)
Lee, Soo-Youn (Dept. of Computer Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.46, no.3, 2009 , pp. 75-88 More about this Journal
Abstract
This paper presents a video quality assessment method based on quality degradation factors of real-time multimedia streaming services. The video quality degradation is caused by video source compression and network states. In this paper, we propose a blocky metric on an image domain to measure quality degradation by video compression. In this paper, the proposed boundary strength index for the blocky metric is defined by ratio of the variation of two pixel values adjacent to $8{\times}8$ block boundary and the average variation at several pixels adjacent to the two boundary pixels. On the other hand, unnatural image movement caused by network performance deterioration such as jitter and delay factors can be observed. In this paper, a temporal-Jerkiness measurement method is proposed by computing statistics of luminance differences between consecutive frames and play-time intervals between frames. The proposed final Perceptual Video Quality Metric (PVQM) is proposed by consolidating both blocking strength and temporal-jerkiness. To evaluate performance of the proposed algorithm, the accuracy of the proposed algorithm is compared with Difference of Mean Opinion Score (DMOS) based on human visual system.
Keywords
RTP/RTCP; Video communication; Video quality; Blocking artifact;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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