基于金字塔技术的STL模型数字水印算法

崔汉国; 刘健鑫; 李正民

doi:10.3724/SP.J.1004.2013.00852

基于金字塔技术的STL模型数字水印算法

doi: 10.3724/SP.J.1004.2013.00852

1.
海军工程大学动力工程学院武汉 430033;
2.
海军蚌埠士官学校机电系蚌埠 233012

基金项目:

湖北省自然科学基金(2012FB06904)资助

详细信息

通讯作者:
崔汉国

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- 被引次数: 0
出版历程
- 收稿日期: 2011-10-26
- 修回日期: 2012-09-26
- 刊出日期: 2013-06-20

STL Model Watermarking Algorithm Based on Pyramid Technique

1.
College of Power Engineering, Naval University of Engineering, Wuhan 430033;
2.
Department of Electromechanical Engineering, Bengbu Naval Petty Officer Academy, BengBu 233012

Funds:

Supported by Hubei Province Natural Science Foundation of China(2012FB06904)

摘要

摘要: 为了确保STL (Stereo lithography) 模型数据在网络传输过程中的安全、完整性,根据STL模型自身的特点, 对模型进行了拓扑重建,在主成分分析(Primary component analysis, PCA)预处理的基础上,提出了基于金字塔技术建立STL模型数据空间索引算法,对原始STL模型数据空间进行了划分和索引, 结合奇异值分解的相关原理,提出了基于B+ 树K近邻查询的STL模型数字水印嵌入与提取算法. 实验证明:本文算法不可见性较好,算法实现速度快,在盲检测下能够抵抗旋转、平移、均匀缩放、顶点重排序、简化、噪声、剪切等攻击,具有较好的鲁棒性.
- STL模型 /
- 数字水印 /
- 金字塔技术 /
- 奇异值分解 /
- K近邻查询
Abstract: To ensure the security and integrity of stereo lithography (STL) model during transmission on the network, according to its own characteristics, the topological reconstruction of the STL model was achieved. After the pretreatment of primary component analysis (PCA), the multidimensional index algorithm for STL model based on pyramid technique was proposed, and the data space that contains the STL model was subdivided and indexed. According to the singular value decomposition principle, an STL model watermarking embedding and extraction algorithm based on B+ tree K nearest-neighbor query was proposed. Experimental results showed that the presented algorithm is efficient and robust to many attacks such as rotation, translation, uniform scaling, vertices reordering, simplifying, noise and cropping under blind detection.
- STL model /
- watermarking algorithm /
- pyramid technique /
- singular value decomposition /
- K nearest-neighbor query

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