Watermarking 3D Objects Using Local Set Information
局部集的3D模型水印方法

We propose a new watermarking method in the time domain, which utilizes a local set of information of each vertex to embed watermarking information and blind-detect. During the embedding process, appropriate vertices are selected to be embedded with the watermarking information according to local set area of each vertex on purpose of improving imperceptivity. As the detection progresses, the same local set area information is obtained to build the synchronization between embedding and detecting. This improves the robustness of the proposed. The property of affine invariant of first order moment makes the algorithm resisting attacks of rotation, translation, uniform scaling easily. The experiment has shown that, while the attacks are not so strong to damage the visual quality of 3D object, the algorithm acquires high robustness to resist attacks of adding noise and smooth-filtering.