电力设备三维网格模型自适应鲁棒水印算法

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Abstract A novel robust watermarking algorithm for electric power equipment is proposed and its applications in power system multimedia information security are presented. Firstly, some umbilical points are found by analyzing the discrete curvatures estimation of 3D mesh model. Combining the vertex discrete normal vector and local roughness of the mesh model, the watermark information is adaptively embedded into electric power equipment 3D mesh model by projecting the vertex positions of robust umbilical points along the principal directions. Experimental results show that the proposed mesh watermarking can resist various mesh operations and attacks such as additive noise, affine transform, mesh simplification, and mesh cropping, and therefore possesses strong imperceptibility and robustness.

Key words： Electric power equipment umbilical point discrete normal vector local roughness

Received: 25 February 2010 Published: 10 March 2014

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TP309

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	Zhu Shaomin
	Liu Jianming

Cite this article:

Zhu Shaomin,Liu Jianming. Electric Power Equipment 3D Mesh Model Adaptive Robust Watermarking Algorithm[J]. Transactions of China Electrotechnical Society, 2011, 26(12): 197-204.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I12/197

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