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带纹理的三维地形数据信息隐藏技术研究
引用本文:罗永,成礼智,吴翊,徐志宏.带纹理的三维地形数据信息隐藏技术研究[J].计算机辅助设计与图形学学报,2005,17(5):889-894.
作者姓名:罗永  成礼智  吴翊  徐志宏
作者单位:国防科学技术大学理学院,长沙,410073
基金项目:国家自然科学基金 ( 10 17110 9),教育部博士点基金 ( 2 0 0 499980 0 6)
摘    要: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.提出可嵌入隐藏信息的小波系数集合生成方法,应用基于视觉系统小波域量化噪声的视觉权重分析方法,自适应地确定信息嵌入的强度,应用Rabin方法生成单向Hash函数,信息隐藏算法可以完全公开。

关 键 词:信息隐藏  数字高程模型  带参数整数小波变换

Three-Dimensional Landform Data with Texture Information Hiding Technique
Luo Yong,Cheng Lizhi,Wu Yi,Xu Zhihong.Three-Dimensional Landform Data with Texture Information Hiding Technique[J].Journal of Computer-Aided Design & Computer Graphics,2005,17(5):889-894.
Authors:Luo Yong  Cheng Lizhi  Wu Yi  Xu Zhihong
Abstract:In this paper, a method of information hiding technology is introduced for protecting 3-D landform data where the information of elevation is hidden in the texture. Keeping the terrain figure and hypsography, the terrain information is compressed in low bit ratio. We present a method to build the wavelet coefficient set which can embed hidden information. The strength of the embedding data is image-adaptive according to the wavelet quantization noise, with the maximum strength of just noticeable distortion tolerance of human visual system. We construct Hash one-way by the Rabin method, and the arithmetic can be fully open to the public.
Keywords:information hiding  digital elevation mode  integer wavelets with parameter
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