NDLI: Improved Blind Watermarking of 3D Objects Based on Partition

Content Provider	IEEE Xplore Digital Library
Author	Zhiqiang Yao Liping Chen Rijing Pan Shanchao Yang Curran, K.
Copyright Year	2009
Abstract	With the development of architecture design, virtual reality, entertainment, mechanical engineering and cultural heritage, digital watermarking has played an important role in copyright protection of 3-D objects. However, due to the problems such as computational complexity and capturing local geometrical feature of 3D mesh, watermarking of 3D objects has not reached the same level of maturity as that of still images and video. In order to alleviate them, mesh partition is applied in the algorithm. This paper presents a novel mesh partition approach which can predict the partition boundary of stego-mesh with some additional information instead of the presence of the cover-mesh. The canonical positions of meshes are determined by employing the face normal principal component analysis. So the additional information is picked up scatteredly from the elevation of the cover-mesh in canonical coordinate systems and used to match the elevation of the stego-mesh. After matching the elevation, the deflected degree of coordinate system is estimated to realign the stego-mesh approximately and plot out the partition boundary. Finally, an improved watermarking is proposed and a group of experiment results are presented to verify the stability of the proposed partition scheme against some attacks imposed on meshes.
Starting Page	307
Ending Page	311
File Size	956069
Page Count	5
File Format	PDF
ISBN	9780769537368
DOI	10.1109/ICNC.2009.621
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Scattering Watermarking Elevation matching Partitioning algorithms Covariance matrix Cultural differences Mechanical engineering Computational complexity Stego mesh partition Computer architecture Virtual reality Copyright protection Principal component analysis
Content Type	Text
Resource Type	Article

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