| 引用本文: | 刘河潮,常义林,陈玉峰.H.264／AVC网络视频的丢包失真评估[J].哈尔滨工业大学学报,2014,46(5):81.DOI:10.11918/j.issn.0367-6234.2014.05.013 |
| LIU Hechao,CHANG Yilin,CHEN Yufeng.H.264／AVC video quality assessment over IP network based on packet loss[J].Journal of Harbin Institute of Technology,2014,46(5):81.DOI:10.11918/j.issn.0367-6234.2014.05.013 |
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| 摘要: |
| 针对新一代压缩编码标准H.264／AVC所使用的新编码技术在网络传输时误码对视频质量的影响,提出一种无参考的H.264／AVC网络视频的丢包失真评估方法．首先对信道误码引起的视频失真进行了分析,然后确定H.264／AVC编码新特性对空时域误码传播及误码掩盖的影响,进而提出一种无参考的H.264／AVC网络视频的丢包失真评估方法．该方法计算复杂度低,适合对实时传输的视频进行质量监控．实验结果表明,使用该方法得到视频序列的MSE(mean square error)与使用全参考视频质量评估方法得到视频序列的MSE具有很好的一致性,相关性超过0.85． |
| 关键词: 视频质量评估 网络丢包 误码掩盖 H.264／AVC |
| DOI：10.11918/j.issn.0367-6234.2014.05.013 |
| 分类号:TN919.85 |
| 基金项目:国家自然科学基金资助项目(1,2)；国家国际科技合作专项资金资助项目(72004885). |
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| H.264／AVC video quality assessment over IP network based on packet loss |
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LIU Hechao1, CHANG Yilin1, CHEN Yufeng2
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(1. State Key Laboratory of Integrated Service Networks, Xidian University, 710071 Xi’an, China; 2. Air Force Harbin Flying College, 150001 Harbin, China)
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| Abstract: |
| A no-reference video quality assessment method is proposed for H.264／AVC network videos. The affection of packet loss on video qualities is first analyzed. Then, the video qualities are assessed by analyzing the spatial-temporal error propagation and error concealment which is induced by the new coding features of H.264／AVC. The complexity of the proposed quality assessment method is low, and it is suitable for assessing qualities of real time videos. Experimental results demonstrate that the MSE(mean square error) of the assessed video qualities is consistent with that obtained by full reference quality assessment. The correlation coefficient is greater than 0.85. |
| Key words: video quality assessment network packet loss error concealment H.264／AVC |
