A novel geometric robust zero-watermarking scheme, which USES Computer Generated Holograms (CGHs) as the watermarks, is presented.
结合计算全息技术，提出一种新颖的抗几何攻击的鲁棒零水印算法。
Different from conventional CGHs, the pure-phase information on the hologram plane is loaded on the SLM to reconstruct the 3d diffusive objects without considering the reference wave.
与传统的计算全息图不同，该方法将全息图平面的纯位相信息加载到空间光调制器上来重建三维漫射体，而没有引入参考光波。
When single CGH is reconstructed, no information will be observed, while two alignment combined phase-only CGHs are reconstructed, the recorded information will be read out on the image plane.
单独再现每一张全息图时无法观察到原物体信息，而将两全息图对准合在一起时，则可在计算全息图的观察面上得到原来的物体信息。
应用推荐