Due to the difficulty of Geometric invariants in 3D mesh watermarking, tile method to convert 3D data into 2D data by directly applying the 2D watermarking method was put forward.

• 鉴于寻找三维模型几何与拓扑不变量的难度，提出了将三维数据转换到二维空间，直接运用二维水印算法。