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A 3D model encryption method supporting adaptive visual effects after decryption
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DOI：10.1016/j.aei.2023.102319.png)
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Abstract
En 中文
3D model security protection has become increasingly essential due to its wide engineering applications. Encryption is a common method to protect 3D models. Jansent et al. recently proposed a novel encryption method for 3D models by introducing hierarchical decryption to allow differential visual effects after decryption, in which some bits are selected to form three blocks and then encrypted separately. However, this method does not support the adaptive combination of visual effects, potentially limiting its ability to meet diverse requirements. To this end, we propose a 3D model encryption method supporting adaptive visual effects after decryption, in which some bits of the vertex coordinate value can flexibly be extracted within a reasonable range. Meanwhile, we accordingly optimize some steps in the method and redefine visual security levels to accurately outline how much visual information can be accessed by authorized users. Experimental results show that our method supports adaptively combining different visual effects during decryption while reducing the time cost.
Keywords:
3D model encryption
3D model security protection
Adaptively hierarchical decryption
Adaptive visual effects
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