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计算机应用研究 2008
Blind 3D mesh objects watermarking scheme based on wavelet
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Abstract:
This paper proposed a novel wavelet method for blind robust 3D mesh object watermarking applications. First, a transformation of the model to an affine invariant space was finished prior to watermark embedding. Produced a 1D signal through calculating the distance from the object center to the vertices, and performed a wavelet transform on it, then embedded the watermark by changing the high frequency coefficients, in affine invariant space,the 3D object was no affected by geometric transformations, such as translation, rotation and scaling, and realized good visual masking by using the wavelet transform,there was also a little robust to the additive noise. Experiments show that the method is both robust against geometric transformations and good at visual masking.