3D Triangular Mesh Watermarking for Copyright Protection Using Moment-Preserving

A new watermarking scheme on 3D triangular mesh models is proposed. Watermarks are embedded by modifying a subset of carefully selected edge vertices in order to resist attacks. A local geometrical disturbance on the selected edge vertices is used to embed the information without destroying the local connectivity. Edge vertices are detected using the proposed 3D moment-preserving technique. Edge vertices quantize into multiple classes where each of them is used to embed a watermark bit. Experimental results show that the proposed scheme is robust in resisting common attacks.