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A robust watermarking scheme for 3D triangular mesh models

Horace H.S.Ip

   In this paper we propose a robust 3D model watermarking scheme for triangle meshes. Our approach embeds watermark information by modifying the length of the vectors that link vertices to the centre of the model. Particularly, our approach is able distribute information corresponds to a bit of the watermark over the entire model and the strength of the watermark signal is adaptive with respect to the local geometry of the model. Experiments show that this watermarking scheme is robust against attacks such as mesh simplification, addition of noise, and model cropping.……