| 基于等距映射的视频水印算法 |
| |
| 引用本文： | 聂秀山,刘琚,秦丰林. 基于等距映射的视频水印算法[J]. 计算机工程, 2010, 36(19): 237-238,243 |
| |
| 作者姓名： | 聂秀山 刘琚 秦丰林 |
| |
| 作者单位： | 1. 山东财政学院计算机信息工程学院,济南,250014;山东大学信息科学与工程学院,济南,250100
2. 山东大学信息科学与工程学院,济南,250100 |
| |
| 基金项目： | 国家自然科学基金资助项目，教育部科技创新工程重大项目培育基金资助项目，山东省自然科学基金资助项目 |
| |
| 摘 要： | 提出一种基于等距映射的视频水印算法，利用等距映射把原始视频各帧投影到二维平面上并应用奇异值分解把水印信息嵌入到视频帧与其在二维平面上投影点之间的差值上。实验证明，该算法对随机噪声干扰和诸如旋转、平移、裁剪等空间同步失真的攻击以及帧丢弃、帧插入等时间同步失真具有较好的鲁棒性。
|
| 关 键 词： | 等距映射 水印 奇异值分解 鲁棒性 |
Video Watermark Algorithm Based on Isometric Mapping |
| |
| NIE Xiu-shan,LIU Ju,QIN Feng-lin. Video Watermark Algorithm Based on Isometric Mapping[J]. Computer Engineering, 2010, 36(19): 237-238,243 |
| |
| Authors: | NIE Xiu-shan LIU Ju QIN Feng-lin |
| |
| Affiliation: | (1. School of Computer and Information Engineering, Shandong University of Finance, Jinan 250014, China; 2. School of Information Science and Engineering, Shandong University, Jinan 250100, China) |
| |
| Abstract: | A digital video watermark scheme based on Isometric Mapping(ISOMAP) is proposed. The frames are mapped to points in the two dimensional space using ISOMAP. Watermarks are embedded into the differences between the frames of video and their images under the mapping through Singular Value Decomposition(SVD). Experimental results show that it has very strong robustness against spatial desynchronization attacks such as rotating, scaling and clipping. It achieves high robustness against noises and median filtering. In addition, the scheme can resist temporal desynchronization such as frame dropping and inserting to some extent. |
| |
| Keywords: | Isometric Mapping(ISOMAP) watermark Singular Value Decomposition(SVD) robust |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程》浏览原始摘要信息 |
|
点击此处可从《计算机工程》下载免费的PDF全文 |
|
