Watanabe Keita, Yamauchi Keigo, Sakamoto Yuji
Appl Opt. 2024 Mar 1;63(7):B126-B133. doi: 10.1364/AO.506341.
A computer-generated hologram (CGH) enables the display of virtual images and videos as well as the communication and storage of holographic data. The point-based method, which is a CGH-calculation method for representing the surface of an object as a set of point-light sources, has not been sufficiently studied in terms of realistic representation. This paper proposes a CGH-calculation method for realistic rendering using ray tracing to be used with a point-based method. Experiments were conducted with an optical system to confirm the effectiveness of the proposed method in terms of hidden-surface removal in mirror images and its implementation on multiple mirror surfaces. The results indicate that the proposed method enabled hidden-surface removal with continuous parallax and reflection on mirror surfaces.
计算机生成全息图（CGH）能够显示虚拟图像和视频，以及全息数据的通信和存储。基于点的方法是一种将物体表面表示为一组点光源的CGH计算方法，在逼真表示方面尚未得到充分研究。本文提出了一种结合基于点的方法，使用光线追踪进行逼真渲染的CGH计算方法。利用光学系统进行了实验，以确认所提方法在镜像隐藏面消除及其在多个镜面上的实现方面的有效性。结果表明，所提方法能够实现具有连续视差的隐藏面消除以及镜面上的反射。
