A Frequency‐Domain Approach to Watermarking 3D Shapes
A Frequency‐Domain Approach to Watermarking 3D Shapes
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DOI：
10.1111/1467-8659.t01-1-00597
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发表时间：
2002-09
影响因子：
2.5
通讯作者：
Ryutarou Ohbuchi;Akio Mukaiyama;Shigeo Takahashi
中科院分区：
文献类型：
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作者：
Ryutarou Ohbuchi;Akio Mukaiyama;Shigeo Takahashi
提出了一种基于信息检测的三维多边形网格鲁棒水印算法。该算法基于我们之前的算法[ 22]，该算法采用网格谱分析来修改其变换域中的网格形状。本文对我们之前的算法进行了扩展，以便（1）可以在合理的时间内对更大的网格添加水印，并且（2）水印对连接性更改具有鲁棒性（例如，网格简化），以及（3）水印对于将联合收割机相似性变换与诸如剪切、网格简化和平滑的其它攻击相结合的攻击是鲁棒的。实验结果表明，新的水印算法能够抵抗网格简化和网格重构，并能抵抗相似变换、相似性变换等操作。
This paper presents a robust watermarking algorithm with informed detection for 3D polygonal meshes. The algorithm is based on our previous algorithm [ 22] that employs mesh‐spectral analysis to modify mesh shapes in their transformed domain. This paper presents extensions to our previous algorithm so that (1) much larger meshes can be watermarked within a reasonable time, and that (2) the watermark is robust against connectivity alteration (e.g., mesh simplification), and that (3) the watermark is robust against attacks that combine similarity transformation with such other attacks as cropping, mesh simplification, and smoothing. Experiment showed that our new watermarks are resistant against mesh simplification and remeshing combined with resection, similarity transformation, and other operations..