不可逆的3维网格模型数字水印算法

Non-invertible Watermarking Scheme for 3D Meshes

提出一种基于奇异值分解的三角网格模型数字水印算法,该算法主要思想在于把水印信息嵌入到奇异值为零的地方,由于零值的特点使得算法不可逆,从而成功抵御了解释攻击。该算法简单,并可以快速嵌入到大规模三角网格模型里。通过几种不同的攻击实验,验证了算法具有很好的鲁棒性,最后还对构造不可逆算法的必要条件进行了总结。

This paper presents a novel watermarking scheme based on singular value decomposition（SVD） for 3D meshes, it embeds the watermark into the singular values which equal zero. This watermarking scheme is non-invertible, since the singular value is zero. This algorithm can quickly embed the watermark to large-scale 3D meshes and is robust to various attacks. Finally we analyze some necessary conditions to construct the non-invertible scheme.