Ray-space acquisition and reconstruction within cylindrical objective space
Ray-space acquisition and reconstruction within cylindrical objective space
复制标题
DOI：
10.1117/12.650987
复制
发表时间：
2006-01
期刊：
影响因子：
--
通讯作者：
T. Yendo;T. Fujii;M. Tanimoto
中科院分区：
文献类型：
--
作者：
T. Yendo;T. Fujii;M. Tanimoto
提出了一种基于光线的柱面显示器，允许多名观众在不戴3D眼镜的情况下从360度水平弧线上观看3D图像。该技术使用柱面视差屏障和由垂直排列的LED等半导体光源构成的一维光源阵列。光源阵列沿柱面视差栅栏内侧旋转，每束光的强度随旋转同步调制。由于这项技术是基于视差全景图的，光线的密度受到视差势垒处的衍射的限制。为了解决这一问题，我们采用了旋转视差栅栏。我们已经开发了两个原型显示器，它们显示了高存在的3D图像。特别是较新的一款能够显示直径为200 mm的彩色图像，适合于显示像人头一样的实物。因此，我们使用一个围绕物体旋转的摄像机获取光线空间数据，并使用原型显示器成功地重建了物体。在本文中，我们描述了该系统的细节，并讨论了从光线空间数据重建物体的光线控制方法。
A ray-based cylindrical display is proposed that allows multiple viewers to see 3D images from a 360-degree horizontal arc without wearing 3-D glasses. This technique uses a cylindrical parallax barrier and a one-dimensional light source array constructed from such semiconductor light sources as LEDs aligned in a vertical line. The light source array rotates along the inside of the cylindrical parallax barrier, and the intensity of each light is synchronously modulated with the rotation. Since this technique is based on the parallax panoramagram, the density of rays is limited by the diffraction at the parallax barrier. In order to solve this problem, we employed revolving parallax barrier. We have developed two protype displays and they showed high presence 3D image. Especially the newer one is capable of displaying color images whose diameter is 200mm, it is suitable for displaying real object like a human head. Therefore we acquired ray-space data using a video camera rotating around an object and reconstructed the object using the prototype display successfully. In this paper, we describe details of the system and discuss about ray control method to reconstruct object from ray-space data.