Format-Compliant Selective Secret 3D Object Sharing Scheme

Sebastien Beugnon 1 William Puech 1 Jean-Pierre Pedeboy 2
1 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : This paper presents a new method of Secret 3D Object Sharing (S3DOS) which allows sharing of 3D objects whilst preserving its file format by selectively encrypting a 3D object in order to sufficiently protect the visual nature of the content. This scheme, named Format-Compliant Selective (k, n) Secret 3D Object Sharing (FCSS3DOS), modifies selected bits of the vertices of a 3D object to protect visual content by inducing geometrical distortions. These distortions are controlled thanks to the application of a degradation level at the beginning of the sharing process. To reconstruct the secret 3D object, at least k shared 3D objects among n have to be combined in order to remove the geometrical distortions and recover the exact original 3D object. Experimental results are presented and evaluated to showcase the feasibility of the proposed scheme.
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Sebastien Beugnon, William Puech, Jean-Pierre Pedeboy. Format-Compliant Selective Secret 3D Object Sharing Scheme. IEEE Transactions on Multimedia, Institute of Electrical and Electronics Engineers, In press, ⟨10.1109/TMM.2019.2900905⟩. ⟨hal-02066130⟩

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