一种基于小波变换的三维网格模型水印算法

提出了一种基于小波变换的强壮三维网格模型数字水印算法。首先采用一种平面参数化算法将三维网格模型映射为二维参数网格，三维网格模型表面的几何信号相应转换为二维信号，然后采用一种自适应小波水印算法加入水印。实验结果显示该水印算法能够抵抗各种几何信号处理攻击。

3D mesh model watermarking algorithm based on wavelet transform

In this paper, we proposed a robust watermarking algorithm for 3D mesh. The algorithm was based on wavelet transform. A planar parameterization algorithm was first proposed to map 3D mesh models to 2D parametric meshes. Geometric signals were then transformed into 2D signals. Then a wavelet-based watermark casting scheme was proposed to embed the watermark into some wavelet coefficients, Experimental results show that the embedded watermark is robust against various geometry signal processing attacks.