A novel semi-blind-and-semi-reversible robust watermarking scheme for 3D polygonal models

Authors:
Chao-Hung Lin;Min-Wen Chao;Chan-Yu Liang;Tong-Yee Lee
Affiliations:
National Cheng-Kung University, The Department of Geomatics, No. 1, Ta-Hsueh Road, 701, Tainan, Taiwan, ROC;National Cheng-Kung University, The Computer Graphics Group/Visual System Laboratory, Department of Computer Science and Information Engineering, No. 1, Ta-Hsueh Road, 701, Tainan, Taiwan, ROC;National Cheng-Kung University, The Computer Graphics Group/Visual System Laboratory, Department of Computer Science and Information Engineering, No. 1, Ta-Hsueh Road, 701, Tainan, Taiwan, ROC;National Cheng-Kung University, The Computer Graphics Group/Visual System Laboratory, Department of Computer Science and Information Engineering, No. 1, Ta-Hsueh Road, 701, Tainan, Taiwan, ROC
Venue:
The Visual Computer: International Journal of Computer Graphics
Year:
2010

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Computers and Graphics

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Abstract

We introduce a novel semi-blind-and-semi- reversible robust watermarking scheme for three-dimensional (3D) polygonal models. The proposed approach embeds watermarks in the significant features of 3D models in a spread-spectrum manner. This novel scheme is robust against a wide variety of attacks including rotation, translation, scaling, noise addition, smoothing, mesh simplifications, vertex reordering, cropping, and even pose deformation of meshes. To the best of our knowledge, the existing approaches including blind, semi-blind, and non-blind detection schemes cannot withstand the attack of pose editing, which is a very common routine in 3D animation. In addition, the watermarked models can be semi-reversed (i.e., the peak signal-to-noise ratio (PSNR) of the recovered models is greater than 90 dB in all experiments) in semi-blind detection scheme. Experimental results show that this novel approach has many significant advantages in terms of robustness and invisibility over other state-of-the-art approaches.