【摘要】 提出一种基于最优均方误差意义下的非对称3D几何模型数字水印算法.算法基本思想是,使嵌入水印受到3D几何模型几何变换和拓扑变换所带来的误差能量影响最小,即首先通过顶点的选择和排序,使嵌入的水印受到三维网格拓扑变换影响最小,然后计算排序后顶点的特征空间,将水印嵌入到最不受三维模型影响的子空间,使嵌入水印受到三维网格的几何变换影响最小.仿真得到结果,证明算法的鲁棒性.更多还原

【Abstract】 A novel method suitable for 3D mesh objects watermarking applications are proposed.Through choosing the vertexes,we lead to the embedded watermark that has the least modified to topology transform of the 3D geometry model,and then,project the watermark to the space that has the least mean square error value.So,we obtain that the robustness of the approach lies in hiding a watermark in the space that is least susceptible to 3D model geometrical modification.The robustness of our method is demonstrated by attacks through simulation.更多还原