基于U系统的三维网格模型数字水印算法  

U-System Based Digital Watermarking Algorithm for 3D Mesh Model

作　　者：邹建成[1] 邓欢军[1] 高国梅[1] 

机构地区：[1]北方工业大学图像处理与模式识别研究所,中国北京100041

出　　处：《中国电子商情（通信市场）》2008年第2期20-26,共7页

摘　　要：本文提出了一种基于U系统的三维网格模型数字水印算法。该算法首先将模型上的顶点到模型中心的距离U变换，然后对变换后的系数进行量化来嵌入水印。由于该距离是一种全局几何特征，且算法将1比特水印信息分布到模型各处，从而使得该水印方案具有较强的鲁棒性。实验结果表明该算法完全可行。In this paper, we propose a new digital watermarking algorithm for 3D mesh model based on U-System. The algorithm applies firstly the U-System Transform to the distances between the center of mesh and the vertices, and then embeds the watermark by the scale quantization on the V-System Transform coefficients .the distance is a global character of the mesh and the proposed algorithm is able to distribute information corresponds to a bit of the watermark over the entire model, so the proposed method is robust enough .The experimental results proved that the method is available.

关 键 词：三维网格 U系统 数字水印 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]