A new mixed spatial domain watermarking of three dimensional triangle mesh
Proceedings of the 4th international conference on Computer graphics and interactive techniques in Australasia and Southeast Asia
A robust spread spectrum watermarking method using two levels DCT
International Journal of Electronic Security and Digital Forensics
A new spread spectrum watermarking method using two levels DCT
International Journal of Electronic Security and Digital Forensics
Using space-time coding for watermarking of three-dimensional triangle mesh
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
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In this paper, we propose a new digital watermarkingscheme for the three-dimensional (3-D) mesh model inthe spatial domain. In order to insert and extractwatermark signals, we generate triangle strips bytraversing the 3-D mesh model. We embed thewatermark signal into vertex positions of the 3-Dmodel in the spherical coordinate representation. Wedefine a new masking operation for the watermarksignal according to the variation of vertex positionsalong the traversed strips so that we can change theembedding strength adaptively and reduce thevisibility distortion of the data embedding. We test theproposed watermarking scheme by embedding arandom binary sequence and applying differentattacks, such as additive random noise, compressionby MPEG-4 SNHC, and mesh simplification, whichshows the robustness of the watermarking scheme.