Kim Kyung-Jin, Park Byung-Seo, Kim Jin-Kyum, Kim Dong-Wook, Seo Young-Ho
Opt Express. 2020 Nov 23;28(24):35972-35985. doi: 10.1364/OE.411141.
In this paper, we propose a new system for a real-time holographic augmented reality (AR) video service based on a photorealistic three-dimensional (3D) object point for multiple users to use simultaneously at various locations and viewpoints. To observe the object from all viewpoints, a camera system capable of acquiring the 3D volume of a real object is developed and is used to generate a real object in real-time. Using the normal of the object point, the observable points are mapped to the viewpoint at which the user is located, and a hologram based on the object point is generated. The angle at which the reflected light from each point is incident on the hologram plane is calculated, and the intensity of the interference light is adjusted according to the angle to generate a hologram with a higher 3D effect. The generated hologram is transmitted to each user to provide a holographic AR service. The entire system consists of a camera system comprising eight RGB-D (depth) cameras and two workstations for photorealistic 3D volume and hologram generation. Using this technique, a realistic hologram was generated. Through experiments displaying holograms simultaneously from several different viewpoints, it is confirmed that multiple users can concurrently receive hologram AR.
在本文中，我们提出了一种基于逼真的三维（3D）物体点的新型实时全息增强现实（AR）视频服务系统，可供多个用户在不同位置和视角同时使用。为了从所有视角观察物体，开发了一种能够获取真实物体3D体积的摄像系统，并用于实时生成真实物体。利用物体点的法线，将可观察点映射到用户所在的视角，并生成基于物体点的全息图。计算从每个点反射的光入射到全息图平面的角度，并根据该角度调整干涉光的强度，以生成具有更高3D效果的全息图。生成的全息图被传输给每个用户以提供全息AR服务。整个系统由一个包含八个RGB-D（深度）摄像头的摄像系统和两个用于生成逼真3D体积和全息图的工作站组成。使用该技术，生成了逼真的全息图。通过从几个不同视角同时显示全息图的实验，证实了多个用户可以同时接收全息图AR。
