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Blind watermarking scheme for 3D mesh models based on length of vector |
School of Computer Science and Communications Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China)
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Abstract To solve the problem that current spatial blind watermarking schemes for 3D mesh models are not robust enough to resist noise attack, a novel spatial blind watermarking scheme based on the length of vector is proposed. The scheme embeds watermark into 3 D model by modifying the distances from vertices to the model center and realizes the blind detection combing with vertex neighborhood. The robustness against noise attack is achieved by distributing a watermark bit over the entire model. Experiments show that this watermarking scheme is simple, rapid, and robust against attacks such as translation, rotation, uniform scaling and addition of noise. The watermarking scheme is suitable for real-time copyright authentication of 3D models.
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