Fragile watermarking of three-dimensional objects
Fragile watermarking of three-dimensional objects
复制标题
三维物体的易碎水印
DOI：
10.1109/icip.1998.723416
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
B. Yeo
中科院分区：
文献类型：
--
作者：
M. Yeung;B. Yeo
在二维图像和视频的水印方面已经有了很多研究。然而，三维（3D）对象的水印很少受到关注。我们介绍和调查的水印的三维（3D）的对象相比，2D图像，研究由多边形模型表示的对象的水印，并提出了一种新的脆弱的水印技术，使验证的3D多边形模型检测未经授权的更改。我们提出的技术包括一个水印编码过程，它嵌入了一个序列的数据位通过扰动坐标的顶点在一个3D模型，和水印解码过程中提取的位信息从3D几何形状，使用安全的验证密钥。还提出了对3D对象的未经授权的修改的快速2D可视化。
There have been many works on watermarking of 2D images and video. However, watermarking of three-dimensional (3D) objects has received little attentions. We introduce and investigate the watermarking of three-dimensional (3D) objects as compared to 2D images, study the watermarking of objects represented by polygonal models, and propose a new fragile watermarking technique that enables the verification of 3D polygonal models for detecting unauthorized alterations. Our proposed technique consists of a watermark encoding process which embeds a sequence of data bits by perturbing coordinates of the vertices in a 3D model, and a watermark decoding process which extracts bit information from 3D geometry, using secure verification keys. Fast 2D visualization of unauthorized modification to 3D objects is also proposed.