Advanced rendering techniques for producing specular smooth surfaces in polygon-based high-definition computer holography

Abstract

Novel techniques is proposed for rendering specular smooth surfaces in polygon-based computer holography that features reconstruction of fine 3D images accompanied with strong sensation of depth. The technique is an improvement of the conventional technique for rendering flat specular surfaces. In this technique, phase distribution that works as a diffuser is divided into small rectangular segments and the reflection direction is controlled for each segment. In addition, this new method increases freedom for lighting the object. Two high-definition CGHs are calculated by the proposed method. One of them is fabricated and demonstrated for verifying the technique.