A vertex-based 3D authentication algorithm based on spatial subdivision

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Abstract

The study proposed a vertex-based authentication algorithm based on spatial subdivision. A binary space partitioning tree was employed to subdivide the bounding volume of the input model into voxels. Each vertex could then be encoded into a series of binary digits, denoted as its authentication code, by traversing the constructed tree. Finally, the above authentication code was embedded into the corresponding reference vertex by modulating its position within the located subspace. Extensive experimental results demonstrated that the proposed algorithm provided high embedding capacity and high robustness. Furthermore, the proposed algorithm supported controllable distortion and self-recovery.

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Tsai, Y. Y., Tsai, Y. S., Chi, I. T., & Chan, C. S. (2018). A vertex-based 3D authentication algorithm based on spatial subdivision. Symmetry, 10(10). https://doi.org/10.3390/sym10100422

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