[1]张国有,李 婧,王江帆.基于 SDF 与 Firefly 优化的鲁棒数字水印算法[J].计算机技术与发展,2022,32(10):88-93.[doi:10. 3969 / j. issn. 1673-629X. 2022. 10. 015]
　ZHANG Guo-you,LI Jing,WANG Jiang-fan.Robust Digital Watermarking Algorithm Based on SDF Partition and Firefly Optimization[J].,2022,32(10):88-93.[doi:10. 3969 / j. issn. 1673-629X. 2022. 10. 015]
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基于 SDF 与 Firefly 优化的鲁棒数字水印算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
32
期数:
2022年10期
页码:
88-93
栏目:
网络空间安全
出版日期:
2022-10-10

文章信息/Info

Title:
Robust Digital Watermarking Algorithm Based on SDF Partition and Firefly Optimization
文章编号:
1673-629X(2022)10-0088-06
作者:
张国有; 李 婧; 王江帆
太原科技大学 计算机科学与技术学院,山西 太原 030024
Author(s):
ZHANG Guo-you; LI Jing; WANG Jiang-fan
School of Computer Science and Technology,Taiyuan University of Science and Technology,Taiyuan 030024,China
关键词:
三维网格模型; 形状直径函数; 萤火虫搜索算法; 粗糙度分析; 抗简化
Keywords:
3D mesh model; shape diameter function; firefly search algorithm; roughness analysis; anti simplification
分类号:
TP309
DOI:
10. 3969 / j. issn. 1673-629X. 2022. 10. 015
摘要:
三维模型的版权危机日益显现,针对已有算法在模型遭受高程度简化攻击时鲁棒性仍存在不足的问题,提出一种基于形状直径函数进行分区的三维网格模型数字水印算法。 该算法从网格分割出发,运用形状直径函数这一反映模型局部直径的特征,其受模型重心改变影响较小,对模型进行有效分割效率较高,通过求取顶点及所属面片的 SDF( Shape Diameter Function,形状直径函数)值进行分区操作,在嵌入过程采用改进的萤火虫搜索算法与顶点分区的粗糙度分析结合来进一步筛选最优的顶点位置完成水印嵌入,水印的提取与检测就是嵌入的逆过程。 实验结果表明该算法能有效抵抗仿射变换、剪切等各类攻击,特别是对简化与细分攻击有较高的鲁棒性,另外,该算法对姿势变化也有不错的抵抗效果。
Abstract:
The copyright crisis of 3D model is becoming more and more obvious. Aiming at the problem that the robustness of existing algorithms is still insufficient when the model is attacked by high degree simplification,a digital watermarking algorithm for 3D mesh model based on shape diameter function is proposed. Starting from mesh segmentation,the proposed algorithm uses the shape diameter function,which reflects the local diameter of the model. It is less affected by the change of the center of gravity of the model, and has high efficiency in effective segmentation of the model. The partition operation is carried out by obtaining the SDF ( shape diameter function) values of vertices and patches. In the embedding process,the improved firefly search algorithm is combined with the roughness ana lysis of vertex partition to further screen the optimal vertex position to complete the watermark embedding. The watermark extraction and detection is the inverse process of embedding. Experimental results show that the proposed algorithm can effectively resist various attacks such as affine transformation, clipping and so on, especially the simplification and subdivision attacks. In addition, it also has a high resistance effect to pose changes.

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[1]贾 晖,张建刚.基于谱聚类三维模型集一致性分割算法[J].计算机技术与发展,2019,29(11):21.[doi:10. 3969 / j. issn. 1673-629X. 2019. 11. 005]
　JIA Hui,ZHANG Jian-gang.Consistency Segmentation Algorithm of 3D Model Set Based on Spectral Clustering[J].,2019,29(10):21.[doi:10. 3969 / j. issn. 1673-629X. 2019. 11. 005]

更新日期/Last Update: 2022-10-10