| 压缩格式和码率对视频质量的影响及应用研究 |
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| 引用本文： | 胡媛,司占军.压缩格式和码率对视频质量的影响及应用研究[J].中国印刷与包装研究,2011,3(3):21-26. |
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| 作者姓名： | 胡媛 司占军 |
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| 作者单位： | 天津科技大学包装与印刷工程学院,天津,300222 |
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| 摘 要： | 随着视频技术的发展,对能以最少的数据量获得最好的视觉效果的研究具有重要意义。对于视频质量而言,视频压缩格式及码率无疑是两个最重要的参数。本文通过对高清视频进行压缩,得到相同压缩格式不同码率和相同码率不同压缩格式的视频,然后分别对这两种情况下的视频质量进行主观评价值、PSNRR值以及数据量的比较,分析其对视频质量的影响。最终得出结论,在视频压缩过程中,存在一个最高临界码率,使得视频质量相对最高且数据量最小。此外,还总结出各种常用视频压缩格式的适用范围。
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| 关 键 词： | 视频质量 压缩格式 PSNR值 码率 |
Effect of Compression Format and Code Rate on Video Quality and Application Study |
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| HU Yuan,SI Zhanjun.Effect of Compression Format and Code Rate on Video Quality and Application Study[J].China Printing and Packaging Study,2011,3(3):21-26. |
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| Authors: | HU Yuan SI Zhanjun |
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| Affiliation: | HU Yuan,SI Zhanjun (College of Packaging & Printing Engineering,Tianjin University of Science & Technology,Tianjin 300222,China) |
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| Abstract: | With the development of video technology,it is worthy to study how to get the best video quality with the least data volume.Compression format and code rate are the important parameters to effect the video quality.In this paper, through compressing high-definition video,different code rates and formats were got.Then comparing subjective values, PSNR value and data volume,the effect of ompression format and code rate on the video compression quality was evaluated. According to the evaluation results,in video... |
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| Keywords: | Video quality Compression format PSNR value Code rate |
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