结合网络视频传输特性的参数规划模型

doi:10.3969/j.issn.1001-2400.2016.02.029

Abstract

Abstract:

To evaluate the network video quality, a parametric-planning model is presented. Combining the characteristics of the channel and video sequence, the proposed model evaluates the video distortion caused by packet loss. It can be applied to effective network design and optimization on the premise of the quality of the video services. Firstly, by a detailed analysis of the packet loss behaviors and the characteristics of the video coding, a sequence distortion factor and a frame distortion factor are derived by combining the probability distributions of the packet loss event, which can reflect the video distortion from the perspective of the sequence impairment and frame impairment. Utilizing these factors, the video distortion caused by packet loss is evaluated and finally the parametric planning model is established. Experimental results show that compared with G.1070 and T-V models, the proposed model gets an increment of about 0.042 and 0.064 in Pearson Correlation Coefficient (PCC) and a decrement of about 0.043 and 0.055 in Root Mean Squared Error (RMSE).

Key words: video quality estimation, planning model, network planning, packet loss

CLC Number:

TN919.8

SONG Jiarun;XU Ziqiang;YANG Fuzheng. Parametric-planning model combining the transmission characteristics of network video service[J].Journal of Xidian University, 2016, 43(2): 168-173.

References

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Parametric-planning model combining the transmission characteristics of network video service

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