| 摘要 |
<p>A 3D object (120; 410) is protected by a first device (110) that receives (210) the 3D object (120; 410), permutes (220) the position of at least some of the points of the 3D object (120; 410) to obtain a protected 3D object (130; 420), and outputs (230) the protected 3D object (130; 420). The protected 3D object (130; 420) is unprotected by a second device (140) by receiving (240) the protected 3D object (130; 420), permuting (250) the position of at least some the points of the protected 3D object (130; 420) to obtain an unprotected 3D object (150; 410), and outputting (260) the unprotected 3D object (150; 410). Also provided are the first device (110), the second device (140) and computer readable storage media (160, 170).</p> |
