A Fragile Watermarking Scheme for Authentication of Semi-regular Meshes

Wang, Kai; Lavoue, Guillaume; Denis, Florence; Baskurt, Atilla

A Fragile Watermarking Scheme for Authentication of Semi-regular Meshes

Files

005-008.pdf (211.45 KB)

Date

2008

Authors

Wang, Kai
Lavoue, Guillaume
Denis, Florence
Baskurt, Atilla

Publisher

The Eurographics Association

Abstract

This paper presents a fragile watermarking scheme for authentication of 3D semi-regular meshes. After one wavelet decomposition, the watermark is inserted by slightly modifying the norms and orientations of the obtained wavelet coefficient vectors. The inserted watermark is robust to the so-called content-preserving attacks including vertex reordering and similarity transformations. However, it is vulnerable to others attacks such as local and global geometric modifications and remeshing since the objective is to check the integrity of the mesh. Additionally, according to the watermark extraction result, these attacks can be precisely located on the surface of the attacked mesh in a blind way. Sufficient security level is also achieved by introducing secret keys and by using scalar Costa quantization scheme with appropriate parameter values. Experimental results demonstrate the efficacy of the proposed watermarking scheme.

        @inproceedings{10.2312:egs.20081008
,
booktitle = {Eurographics 2008 - Short Papers
},
editor = {Katerina Mania and Eric Reinhard
},
title = {{A Fragile Watermarking Scheme for Authentication of Semi-regular Meshes
}},
author = {Wang, Kai and 
Lavoue, Guillaume and 
Denis, Florence and 
Baskurt, Atilla
},
year = {2008
},
publisher = {The Eurographics Association
},
ISBN = {},
DOI = {10.2312/egs.20081008
}
}