DocumentCode :
3117294
Title :
Digital watermarking of three-dimensional polygonal models in the spherical coordinate system
Author :
Ashourian, Mohsen ; Enteshari, Reza ; Jeon, Jeonghee
Author_Institution :
Islamic Azad Univ., Isfahan
fYear :
2004
fDate :
19-19 June 2004
Firstpage :
590
Lastpage :
593
Abstract :
In this paper, we propose a new digital watermarking scheme for the three-dimensional (3D) mesh model in the spatial domain. In order to insert and extract watermark signals, we generate triangle strips by traversing the 3D mesh model. We embed the watermark signal into vertex positions of the 3D model in the spherical coordinate representation. We define a new masking operation for the watermark signal according to the variation of vertex positions along the traversed strips so that we can change the embedding strength adoptively and reduce the visibility distortion of the data embedding. We test the proposed watermarking scheme by embedding a random binary sequence and applying different attacks, such as additive random noise, compression by MPEG-4 SNHC, and mesh simplification, which shows the robustness of the watermarking scheme
Keywords :
binary sequences; computational geometry; data compression; feature extraction; image coding; mesh generation; solid modelling; watermarking; digital watermarking scheme; image compression; masking operation; polygon models; random binary sequence; spherical coordinate system; three-dimensional mesh model; Additive noise; Binary sequences; Distortion; MPEG 4 Standard; Mesh generation; Noise robustness; Signal generators; Strips; Testing; Watermarking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Graphics International, 2004. Proceedings
Conference_Location :
Crete
ISSN :
1530-1052
Print_ISBN :
0-7695-2171-1
Type :
conf
DOI :
10.1109/CGI.2004.1309270
Filename :
1309270
Link To Document :
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