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首页> 外文期刊>IEEE transactions on visualization and computer graphics >A New Watermarking Method for 3D Models Based on Integral Invariants
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A New Watermarking Method for 3D Models Based on Integral Invariants

机译：基于积分不变性的3D模型水印新方法

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摘要

In this paper, we propose a new semi-fragile watermarking algorithm for the authentication of 3D models based on integral invariants. A watermark image is embedded by modifying the integral invariants of some of the vertices. In order to modify the integral invariants, the positions of a vertex and its neighbors are shifted. To extract the watermark, all the vertices are tested for the embedded information, and this information is combined to recover the watermark image. The number of parts of the watermark image that can be recovered will determine the authentication decision. Experimental tests show that this method is robust against normal use modifications introduced by rigid transformations, format conversions, rounding errors, etc., and can be used to test for malicious attacks such as mesh editing and cropping. An additional contribution of this paper is a new algorithm for computing two kinds of integral invariants.
机译：在本文中，我们提出了一种新的半脆弱水印算法，用于基于积分不变性的3D模型认证。通过修改某些顶点的积分不变量来嵌入水印图像。为了修改积分不变式，移动了顶点及其邻居的位置。为了提取水印，测试所有顶点的嵌入信息，并将这些信息合并以恢复水印图像。可以恢复的水印图像的部分数量将确定认证决定。实验测试表明，该方法对于由刚性转换，格式转换，舍入错误等引起的常规使用修改具有鲁棒性，并且可以用于测试恶意攻击，例如网格编辑和裁剪。本文的另一项贡献是一种用于计算两种积分不变式的新算法。

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