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3D textured model encryption via 3D Lu chaotic mapping


In the emerging Virtual/Augmented Reality (VR/AR) era, three dimensional (3D) content will be popularized just as images and videos today. The security and privacy of these 3D contents should be taken into consideration. 3D contents contain surface models and solid models. Surface models include point clouds, meshes and textured models. Previous work mainly focused on the encryption of solid models, point clouds and meshes. This work focuses on the most complicated 3D textured model. We propose a 3D Lu chaotic mapping based encryption method for 3D textured models. We encrypt the vertices, polygons, and textures of 3D models separately using the 3D Lu chaotic mapping. Then the encrypted vertices, polygons and textures are composited together to form the final encrypted 3D textured model. The experimental results reveal that our method can encrypt and decrypt 3D textured models correctly. Furthermore, typical statistic and brute-force attacks can be resisted by the proposed method.

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This work was partially supported by National Natural Science Foundation of China (Grant Nos. 61402021, 61401228, 61640216, 61772047), Science and Technology Project of the State Archives Administrator (Grant No. 2015-B-10), Open Funding Project of State Key Laboratory of Virtual Reality Technology and Systems, Beihang University (Grant No. BUAA-VR-16KF-09), Fundamental Research Funds for the Central Universities (Grant Nos. 2016LG03, 2016LG04), China Postdoctoral Science Foundation (Grant No. 2015M581841), and Postdoctoral Science Foundation of Jiangsu Province (Grant No.1501019A).

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Correspondence to Xiaodong Li or Shiming Ge.

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Jin, X., Zhu, S., Xiao, C. et al. 3D textured model encryption via 3D Lu chaotic mapping. Sci. China Inf. Sci. 60, 122107 (2017).

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  • 3D model
  • surface model
  • textured model
  • 3D model encryption
  • 3D Lu chaotic mapping