A Full-Parallax Computer-Generated Hologram Produced by Using the Polygon Method for Shaping the Object and the Silhouette Method for Hidden-Surface Removal

Abstract

In the last decades, point-based methods are used for computing the object wave of 3D objects. However, the computation is much time-consuming for shaping surface objects, and furthermore, there is no practical algorithm for light-shielding to reconstruct occluded scenes in full-parallax CGHs. We report a CGH that is calculated by the polygon-based method for forming 3D surface objects and the silhouette method for light-shielding to reconstruct occluded scenes. This CGH, fabricated by using a laser lithography technology, reconstructs the true fine 3D image accompanied by a strong sensation of depth.