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| 纹理图像无损隐藏三维DEM数据技术 | |
| 引用本文： | 刘绪崇,王建新,胡华平,罗永. 纹理图像无损隐藏三维DEM数据技术[J]. 计算机工程与科学, 2010, 32(10): 63-65. DOI: 10.3969/j.issn.1007130X.2010. |
| 作者姓名： | 刘绪崇 王建新 胡华平 罗永 |
| 作者单位： | 1. 中南大学信息科学与工程学院,湖南,长沙,410083;湖南省公安厅网监与行动技术总队,湖南,长沙,410001 2. 中南大学信息科学与工程学院,湖南,长沙,410083 3. 国防科学技术大学计算机学院,湖南,长沙,410073 4. 国防科学技术大学理学院,湖南,长沙,410073 |
| 基金项目： | 国家973计划资助项目 |
| 摘 要： | 本文提出了纹理图像隐藏高程信息来保护三维地形数据的信息隐藏技术。在保持地形形状和起伏特征的前提下,实现了高程数据的极低比特率压缩。应用改进的基于直方图平移的无损隐藏算法将地形数据隐藏到纹理图像中,在恢复过程中,纹理图像可以无损还原。隐藏的高程数据不易察觉,并且可以防止非法提取和恢复数据。 |
| 关 键 词： | 无损隐藏 数字高程模型 带参数整数小波变换 |
| 收稿时间： | 2009-09-01 |
| 修稿时间： | 2009-12-03 |
Three-Dimensional Landform Data with Texture Information Lossless Hiding Technique |
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| LIU Xu-chong,WANG Jian-xing,HU Hua-ping,LUO Yong. Three-Dimensional Landform Data with Texture Information Lossless Hiding Technique[J]. Computer Engineering & Science, 2010, 32(10): 63-65. DOI: 10.3969/j.issn.1007130X.2010. | |
| Authors: | LIU Xu-chong WANG Jian-xing HU Hua-ping LUO Yong |
| Affiliation: | (1.School of Information Science and Engineering,Central South University,Changsha 410083;2.Security Inspection of Public Info Network Division,Hunan Provincial Public Security Department,Changsha 410001;3.School of Computer Science,National University of Defense Technology,Changsha 410073;4.School of Science,National University of Defense Technology,Changsha 410073,China) |
| Abstract: | In this paper,the information hiding technology is used in protecting the 3 D landform data. The information of elevation is hidden in the texture. Keeping the terrain figure and hypsography,the terrain information is compressed in low bit ratio. The landform data are embedded into the texture data by an improved histogram shift. The texture data can recover losslessly after the data are restored. The hidden DEM data can not be detected easily,and the data can not be drawn restored by the illegal user without the key. |
| Keywords: | lossless information hiding；digital elevation mode；integer wavelet with parameters |
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