通信学报 ›› 2019, Vol. 40 ›› Issue (5): 211-222.doi: 10.11959/j.issn.1000-436x.2019108

• 学术通信 • 上一篇    

基于三维模型贴图与结构数据的信息隐藏算法

任帅1,王震1(),苏东旭1,张弢2,慕德俊3   

  1. 1 长安大学信息工程学院,陕西 西安 710064
    2 长安大学电子与控制工程学院,陕西 西安 710064
    3 西北工业大学自动化学院,陕西 西安 710072
  • 修回日期:2019-03-28 出版日期:2019-05-25 发布日期:2019-05-30
  • 作者简介:任帅(1982- ),男,山西太原人,博士,长安大学副教授,主要研究方向为信息隐藏技术。|王震(1993- ),男,山西运城人,长安大学硕士生,主要研究方向为信息隐藏技术。|苏东旭(1995- ),男,河南许昌人,长安大学硕士生,主要研究方向为多媒体数据检索及认证。|张弢(1984- ),女,山西吕梁人,博士,长安大学副教授,主要研究方向为多载体信息隐藏技术。|慕德俊(1963- ),男,山东荣成人,博士,西北工业大学教授,主要研究方向为网络与信息安全。
  • 基金资助:
    国家自然科学基金资助项目(61702050);大学生创新创业训练计划基金资助项目(201810710052);大学生创新创业训练计划基金资助项目(201810710060);大学生创新创业训练计划基金资助项目(201810710215);大学生创新创业训练计划基金资助项目(201810710224)

Information hiding algorithm based on mapping and structure data of 3D model

Shuai REN1,Zhen WANG1(),Dongxu SU1,Tao ZHANG2,Dejun MU3   

  1. 1 School of Information Engineering,Chang’an University,Xi’an 710064,China
    2 School of Electronic and Control Engineering,Chang’an University,Xi’an 710064,China
    3 College of Automation,Northwestern Polytechnical University,Xi’an 710072,China
  • Revised:2019-03-28 Online:2019-05-25 Published:2019-05-30
  • Supported by:
    The National Natural Science Foundation of China(61702050);The National Training Program of Innovation and Entrepreneurship for Undegraduates(201810710052);The National Training Program of Innovation and Entrepreneurship for Undegraduates(201810710060);The National Training Program of Innovation and Entrepreneurship for Undegraduates(201810710215);The National Training Program of Innovation and Entrepreneurship for Undegraduates(201810710224)

摘要:

针对三维模型信息隐藏无法有效抵抗联合攻击,秘密信息极易被破坏而无法正确提取的问题,提出一种基于三维模型贴图与结构数据的信息隐藏算法。首先,在标准图片库中选取多幅原始 stl 三维模型载体的纹理贴图,利用db1函数经过2次二维离散Daubechies变换将备份的隐秘消息以水印嵌入的思想隐藏其中;其次,以stl类型的三维模型为原始结构载体,利用帧化采样的小波域三维模型信息隐藏算法,将要隐藏的隐秘信息嵌入相应变换空间;最后,利用正交投影的纹理映射算法将二维贴图数据与三维stl数据矩阵相乘,生成含密obj模型文件进行传输。算法利用三维模型的贴图与拓扑坐标空间双重嵌入隐秘信息,有效增强了算法的顽健性。实验分析表明,含密三维模型的不可见性、顽健性以及抗分析性均有提升,可以实现不同类型载体冗余空间的备份隐藏嵌入,为复杂环境下的信息安全传输提供一种可靠的技术手段。

关键词: 信息隐藏, 二维离散Daubechies小波变换, obj模型, 抗分析性

Abstract:

The existing 3D information hiding schemes are not robust enough against the joint attacks,as a result the secret information will be vulnerable and cannot be extracted correctly.In order to solve the above problem,an information hiding algorithm based on mapping and structure data of 3D models was proposed.First,several texture maps of the original 3D models in .stl format were picked from the standard model library,so the backup secret data after twice two-dimension discrete Daubechies transform can be embedded using dbl function just as the watermark.Secondly,the original 3D model in .stl format was operated by frame sampling in wavelet domain to obtain the coefficient in transform domain,thus the secret data was embedded into the corresponding transform coefficient.Finally,the .obj documents with the secret information were generated by multiplying the 2D texture map data and the 3D .stl data matrix based on orthogonal projection.Texture maps and coordinate space of 3D model were both used to embed the secret information repeatedly in order to enhance the robustness.The experiment analysis indicated that the imperceptibility,robustness and resistance against analysis are improved and information transmission safety in complex environment can be achieved based on the redundancy space of multi-type carriers.

Key words: information hiding, two-dimensional discrete Daubechies wavelet transform, obj model, resistance against analysis

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