| 视频在IP网络中传输的质量研究 |
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| 引用本文： | 刘昊,许都. 视频在IP网络中传输的质量研究[J]. 电子科技大学学报(社会科学版), 2005, 0(Z1) |
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| 作者姓名： | 刘昊 许都 |
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| 作者单位： | 电子科技大学宽带光纤传输与通信网技术教育部重点实验室，电子科技大学宽带光纤传输与通信网技术教育部重点实验室 成都 610054，成都 610054 |
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| 摘 要： | 利用MEPEG-4视频TRACE作为输入源,通过分析MPEG-4视频的帧特性,提出了一种针对视频质量的网络传输服务质量保证机制;搭建了视频传输的仿真系统,分析了视频在网络传输中的特性,利用PSNR作为视频质量的衡量标准,在有服务质量保证和无服务质量保证机制的两种网络环境下做了仿真并比较结果,证明了提出的方法能有效提高视频质量．
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| 关 键 词： | MPEG-4 TRACE 峰值信噪比 网络传输 服务质量 |
Research on Video Quality of Video Transmission over IP |
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| LIU Hao,XU Du. Research on Video Quality of Video Transmission over IP[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2005, 0(Z1) |
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| Authors: | LIU Hao XU Du |
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| Abstract: | Based on the characteristics of video frames, this paper proposed a QoS-guarantee scheme of video transmission by utilizing MPEG-4 TRACE file as source. We established a simulation system on video transmission, analyzed the property of video transmitting over IP network and judged the quality of video by PSNR criterion. As the result of comparing the simulations between the conditions under QoS and none-QoS network environments, the mechanism presented by this paper is proved to be efficient on video quality improving. |
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| Keywords: | MPEG-4 TRACE peak signal noise ratio network transmission quality of service |
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