Watermarking 3D mesh by spherical parameterization

被引：49

作者：

Li, L

Zhang, D ^{[1
]}

Pan, ZG

Shi, JY

Zhou, K

Ye, K

机构：

[1] Hong Kong Polytech Univ, Biometr Res Ctr, Ctr Multimedia Signal Proc, Kowloon, Peoples R China

[2] Hong Kong Polytech Univ, Biometr Res Ctr, Dept Comp, Kowloon, Peoples R China

[3] Zhejiang Univ, CAD&CG, State Key Lab, Hangzhou 310027, Peoples R China

[4] Hangzhou Inst Elect Engn, Dept Comp, Hangzhou 310037, Peoples R China

来源：

COMPUTERS & GRAPHICS-UK | 2004年 / 28卷 / 06期

基金：

中国国家自然科学基金;

关键词：

mesh watermarking; spherical parameterization; spherical harmonic transformation;

D O I：

10.1016/j.cag.2004.08.002

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

In this paper, a robust 3D trianglular mesh watermarking algorithm is presented by applying spherical parameterization. First, we transform the coordinate signals of the 3D triangular mesh into spherical signals using a global spherical parameterization and an even sampling scheme. Then, spherical harmonic transformation is used to generate some data for embedding watermarks. As a result, the watermarks can be embedded in the Fourier-frequency domain of the original mesh. Experimental results show that our watermarking algorithm is robust since watermarks can be extracted without mesh alignment or re-meshing under a variety of attacks, including noise addition, crop, filtering, enhancement, rotation, translation, scale and re-sampling. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：981 / 989

页数：9

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