Journal on Communications ›› 2019, Vol. 40 ›› Issue (5): 211-222.doi: 10.11959/j.issn.1000-436x.2019108

• Correspondences • Previous Articles    

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)

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

CLC Number: 

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