| 一种基于MPEG-2数字视频水印的设计方法 |
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| 引用本文： | 苏琴.一种基于MPEG-2数字视频水印的设计方法[J].昆明大学学报,2007,18(4):42-44. |
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| 作者姓名： | 苏琴 |
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| 作者单位： | 昆明理工大学,理学院,云南,昆明,650093 |
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| 摘 要： | 根据MPEG-2压缩视频的原理,提出了一种基于DCT域的MPEG-2视频水印技术的设计方法。该算法将水印信息经Arnold置乱后嵌入到视频I帧的色度DCT中频系数中,并且充分考虑了人眼的视觉特征。新算法易于实现,具有较高的鲁棒性。
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| 关 键 词： | 数字视频水印 MPEG-2原理 离散余弦变换 Arnold置乱 |
| 文章编号： | 1671-2056（2007）04-0042-03 |
| 收稿时间： | 2007-11-28 |
| 修稿时间： | 2007年11月28 |
A MPEG -2 -based Digital Video Watermarking Algorithm |
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| SU Qin.A MPEG -2 -based Digital Video Watermarking Algorithm[J].Journal of Kunming University,2007,18(4):42-44. |
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| Authors: | SU Qin |
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| Abstract: | A design method of MPEG-2 video watermark technology based on DCT domain is developed according to MPEG-2 compressed video principle.After Arnod scrambling,the watermark is directly imbedded into intermediate frequency coefficient in DCT domain of I-VOP.This method takes the human visual system into account.The proposed method is easy to be implemented and has enough robustness. |
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| Keywords: | digital video watermarking MPEG-2 principle DCT transform Arnod scrambling |
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