TY - GEN
T1 - A fragile watermarking scheme for 3D meshes
AU - Wu, Hao Tian
AU - CHEUNG, Yiu Ming
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006
Y1 - 2006
N2 - In this paper, we propose a new fragile watermarking scheme for 3D meshes. Firstly, the watermark information is adaptively embedded into the mesh geometry by slightly adjusting the vertex positions while the mesh topology is unchanged. The embedded watermark can be blindly retrieved with some priori knowledge and used to authenticate the integrity of the watermarked mesh. Compared with previous methods, our proposed one has the following advantages: (1) the embedded watermark is invariant to translation, rotation and uniformly scaling, but sensitive to other operations; (2) enhanced with a reference position, any processing made to the watermarked mesh can be detected; (3) the embedding strength is adjustable so that a trivial tampering with the watermarked mesh model may lead the embedded watermark to change. As a result, unauthorized modifications of the mesh model can be detected and classified.
AB - In this paper, we propose a new fragile watermarking scheme for 3D meshes. Firstly, the watermark information is adaptively embedded into the mesh geometry by slightly adjusting the vertex positions while the mesh topology is unchanged. The embedded watermark can be blindly retrieved with some priori knowledge and used to authenticate the integrity of the watermarked mesh. Compared with previous methods, our proposed one has the following advantages: (1) the embedded watermark is invariant to translation, rotation and uniformly scaling, but sensitive to other operations; (2) enhanced with a reference position, any processing made to the watermarked mesh can be detected; (3) the embedding strength is adjustable so that a trivial tampering with the watermarked mesh model may lead the embedded watermark to change. As a result, unauthorized modifications of the mesh model can be detected and classified.
KW - Dither modulation
KW - Fragile watermarking
KW - Mesh authentication
KW - Mesh centroid
KW - Tampering detection
UR - http://www.scopus.com/inward/record.url?scp=33748052685&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33748052685
SN - 1595930329
SN - 9781595930323
T3 - Proceedings of the 7th Multimedia and Security Workshop 2005, MM and Sec'05
SP - 117
EP - 123
BT - Proceedings of the 7th Multimedia and Security Workshop 2005, MM and Sec'05
T2 - 7th Multimedia and Security Workshop 2005, MM and Sec'05
Y2 - 1 August 2005 through 2 August 2005
ER -