摘要
鲁棒性数字水印作为三维模型版权保护的有效手段近年来被广泛研究;但是现有水印算法存在运算速度慢和抗特定攻击能力差等缺点。该文提出了一种使用几何分布的空域盲水印算法,通过调整网格顶点与最小包围盒中心的距离实现水印的嵌入。实验结果证实提出的算法对仿射变换、数据剪切、数据重排和噪声攻击具有鲁棒性,而且水印嵌入提取速度较快和具有良好的水印透明性。
In recent years, the robust digital watermarking has been widely researched as an effective solution to copyright protection of 3D models. But the existing watermarking algorithms have slow operation speed and poor ability of resistance to specific attacks. This paper puts forward a blind spatial domain algorithm using geometric distribution. This scheme embeds watermarking by adjusting the distance of the mesh vertex and the tightest bounding box center. Experimental results demonstrated that the proposed algorithm has quick speed and the robustness to affine transformation, data cutting, data rearrangement and noise attacks as well as the invisibility of the watermark.
作者
邓利平
DENG Li-ping (Department of Computer Science, China West Normal University, Nanchong 637002, China)
出处
《电脑知识与技术（过刊）》
2010年第23期6566-6568,共3页
Computer Knowledge and Technology
基金
四川省教育厅科研项目(08ZA018)
校级启动项目(08B006)
关键词
三维网格模型
空域算法
鲁棒性
最小包围盒中心
3D mesh model
spatial domain algorithm
robustness
tightest bounding box center
