计算机应用 ›› 2017, Vol. 37 ›› Issue (9): 2576-2580.DOI: 10.11772/j.issn.1001-9081.2017.09.2576

• 网络空间安全 • 上一篇    下一篇

基于三维模型球型分割的信息隐藏算法

任帅1, 张弢2, 杨涛1, 索丽1, 慕德俊3   

  1. 1. 长安大学 信息工程学院, 西安 710064;
    2. 长安大学 电子与控制工程学院, 西安 710064;
    3. 西北工业大学 自动化学院, 西安 710072
  • 收稿日期:2017-03-21 修回日期:2017-04-25 出版日期:2017-09-10 发布日期:2017-09-13
  • 通讯作者: 任帅,maxwellren@qq.com
  • 作者简介:任帅(1982-),男,山西太原人,副教授,博士,CCF会员,主要研究方向:信息隐藏、数字水印、信息安全风险评估;张弢(1984-),女,山西吕梁人,副教授,博士,主要研究方向:信息隐藏、数字水印;杨涛(1992-),男,河南三门峡人,硕士研究生,主要研究方向:信息隐藏;索丽(1990-),女,新疆乌鲁木齐人,硕士研究生,主要研究方向:信息隐藏;慕德俊(1963-),男,山东荣城人,教授,博士,主要研究方向:密码学。
  • 基金资助:
    国家自然科学基金资助项目(61702050, 61402052);陕西省自然科学基础研究计划项目(2014JM2-6105);中国博士后科学基金资助项目(2015M572510);陕西省博士后科学基金资助项目;西藏自治区自然科学基金项目(2015ZR-14-20);中央高校基本科研业务费专项资金资助项目(310832151092);国家级大学生创新创业训练计划项目(201510710044);2017年中央高校教育教学改革专项(研究生卓越人才培养计划项目)(310624176303)。

Information hiding algorithm based on spherical segmentation of 3D model

REN Shuai1, ZHANG Tao2, YANG Tao1, SUO Li1, MU Dejun3   

  1. 1. School of Information Engineering, Chang'an University, Xi'an Shaanxi 710064, China;
    2. School of Electronic and Control Engineering, Chang'an University, Xi'an Shaanxi 710064, China;
    3. College of Automation, Northwestern Polytechnical University, Xi'an Shaanxi 710072, China
  • Received:2017-03-21 Revised:2017-04-25 Online:2017-09-10 Published:2017-09-13
  • Supported by:
    This work is partially supported by National Natural Science Foundation of China (61702050, 61402052), the Natural Science Basic Research Plan of Shaanxi Province of China (2014JM2-6105), the China Postdoctoral Science Foundation (2015M572510), the Postdoctoral Science Foundation of Shaanxi Province, the Natural Science Foundation of Tibet (2015ZR-14-20), the Fundamental Research Funds for the Central Universities (310832151092), the National Students' Innovation and Enterpreneurship Training Program (201510710044), Education and teaching Reform Special Project for Central Affiliated University of 2017 (Outstanding Talents Education Project for Postgraduate) (310624176303).

摘要: 对于基于三维模型信息隐藏算法在几何攻击中鲁棒性差的问题,提出一种基于三维模型球型分割的信息隐藏算法。首先,利用主元分析、球面坐标转换、球型分割、分区排序等对三维模型进行预处理;然后,计算立体分区中法向量变化较大的点作为特征点,根据待嵌入秘密信息量对特征点进行小波变换;最后,将经过置乱操作的秘密信息嵌入预处理后的载体中生成含密三维模型。实验结果表明,算法不可见性较好,对旋转、随机加噪、重网格以及其他常见攻击具有良好的鲁棒性。

关键词: 信息隐藏, 三维模型载体预处理, 球型分割, 立体分区

Abstract: Aiming at the problem of weak robustness to geometric attack in 3D model information hiding algorithms, an information hiding algorithm based on 3D model spherical segmentation was proposed. Firstly, the 3D model was preprocessed by principal component analysis, spherical coordinate transformation, spherical segmentation and partition sorting. Then, the points with larger normal vector in stereo partition are taken as feature points. The feature points were carried out wavelet transform according to the amount of secret information to be embedded. Finally, the secret information after scrambled operation was embedded into the pre-processed carrier to generate the secret 3D model. The experimental results show that the algorithm is invisible and has good robustness to random noise, heavy mesh and other common attacks.

Key words: information hiding, 3D model carrier pretreatment, spherical segmentation, three-dimensional partitioning

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