| 一种基于MPEG-2标准的数字水印技术 |
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| 引用本文： | 戴酉 沈大华. 一种基于MPEG-2标准的数字水印技术[J]. 江苏技术师范学院学报, 2005, 11(6): 57-63 |
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| 作者姓名： | 戴酉 沈大华 |
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| 作者单位： | [1]上海应用技术学院计算机科学与信息工程系,上海200235 [2]江苏技术师范学院基础课部,江苏常州213001 |
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| 基金项目： | 上海应用技术学院院基金资助项目（KJ2002-8） |
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| 摘 要： | 利用MPEG-2标准的压缩及视频流的特点，讨论了基于DCT变换帧内编码的水印嵌入方法，并提出一种改进的算法。实验证明，该算法改善了压缩视频中水印的嵌入性能。
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| 关 键 词： | MPEG视频 数字水印 离散余弦交换 |
| 收稿时间： | 2005-08-26 |
| 修稿时间： | 2005-11-15 |
Technology of Digital Watermark Based on Standard of MPEG-2 |
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| DAI You, SHEN Da-hu. Technology of Digital Watermark Based on Standard of MPEG-2[J]. Journal of Jiangsu Teachers University of Technology, 2005, 11(6): 57-63 |
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| Authors: | DAI You SHEN Da-hu |
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| Affiliation: | 1.Department of Computer Science and Information Engineering, Shanghai Institute of Technology, Shanghai 200235, China; 2.Department of Basic Courses, Jiangsu Teachers University of Technology, Changzhou 213001, China |
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| Abstract: | Making use of the features of MPEG-2 compression and stream of video frequency, this paper analyzes digital watermarking of intra-frame coding based on DCT and brings forward an improved algorithm. The experiments demonstrate that the algorithm improves the embedding performance of watermark in compressed video. |
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| Keywords: | MPEG video digital watermark DCT |
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