An efficient and robust 3D mesh compression based on 3D watermarking and wavelet transform

Ezzeddine Zagrouba; Saoussen Ben Jabra; Yosra Didi

doi:10.1117/12.896241

8 July 2011 An efficient and robust 3D mesh compression based on 3D watermarking and wavelet transform

Ezzeddine Zagrouba, Saoussen Ben Jabra, Yosra Didi

Proceedings Volume 8009, Third International Conference on Digital Image Processing (ICDIP 2011); 80090X (2011) https://doi.org/10.1117/12.896241
Event: 3rd International Conference on Digital Image Processing, 2011, Chengdu, China

Abstract

The compression and watermarking of 3D meshes are very important in many areas of activity including digital cinematography, virtual reality as well as CAD design. However, most studies on 3D watermarking and 3D compression are done independently. To verify a good trade-off between protection and a fast transfer of 3D meshes, this paper proposes a new approach which combines 3D mesh compression with mesh watermarking. This combination is based on a wavelet transformation. In fact, the used compression method is decomposed to two stages: geometric encoding and topologic encoding. The proposed approach consists to insert a signature between these two stages. First, the wavelet transformation is applied to the original mesh to obtain two components: wavelets coefficients and a coarse mesh. Then, the geometric encoding is done on these two components. The obtained coarse mesh will be marked using a robust mesh watermarking scheme. This insertion into coarse mesh allows obtaining high robustness to several attacks. Finally, the topologic encoding is applied to the marked coarse mesh to obtain the compressed mesh. The combination of compression and watermarking permits to detect the presence of signature after a compression of the marked mesh. In plus, it allows transferring protected 3D meshes with the minimum size. The experiments and evaluations show that the proposed approach presents efficient results in terms of compression gain, invisibility and robustness of the signature against of many attacks.

Citation Download Citation

Ezzeddine Zagrouba, Saoussen Ben Jabra, and Yosra Didi "An efficient and robust 3D mesh compression based on 3D watermarking and wavelet transform", Proc. SPIE 8009, Third International Conference on Digital Image Processing (ICDIP 2011), 80090X (8 July 2011); https://doi.org/10.1117/12.896241

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KEYWORDS

Digital watermarking

Computer programming

Wavelets

3D image processing

Wavelet transforms

3D modeling

Visualization

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