Moving screen projection: a new approach for volumetric three-dimensional display
Moving screen projection: a new approach for volumetric three-dimensional display
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移动屏幕投影：体积三维显示的新方法
DOI：
10.1117/12.237010
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Jyhcheng. Chen
中科院分区：
文献类型：
--
作者：
C. Tsao;Jyhcheng. Chen
介绍了一种体积三维显示的新方法，该方法具有新的光学机械机制，可以通过连续投影整帧2D图像来创建体积三维图像。这种新方法通过光学机械图像传输系统，将一系列轮廓图像帧投射到一个周期性移动并扫描空间的半透明屏幕上。从空间外看，由于人眼的后像效应，分布在空间中的一系列轮廓图像形成了一个体积图像。许多观众可以在不戴任何眼镜的情况下在空间中走动，同时从各个方向看到图像。这一概念的可行性在两个测试显示器上进行了验证，分别使用旋转反射镜和移动透镜作为图像传递机构。使用LED投影仪和带高速LCD快门的幻灯片投影仪作为图像源。成功地生成了简单几何和图案的体积图像，并显示在测试显示器上。讨论了基于这种方法的体积显示器商业化所涉及的主要技术问题。在医疗显示、雷达/声纳显示、计算机辅助设计和电子游戏方面的潜在应用。
A new approach for volumetric 3D display is introduced, which features new optical- mechanical mechanisms enabling creation of volumetric 3D images by successive projection of whole frames of 2D images. This new method projects a series of frames of profiling images, through an optical-mechanical image delivery system, onto a translucent screen which moves periodically and sweeps a space. As viewed from outside the space, the series of profiling images distributed in the space form a volumetric image because of the after-image effect of human eyes. Many viewers can walk around the space and see the image from omni-directions simultaneously without wearing any kind of glasses. Feasibility of this concept is demonstrated on two test displays, using rotating reflectors and moving lens as the image delivery mechanisms respectively. A LED projector and a slide projector with a high speed LCD shutter were used as the image source. Volumetric images of simple geometry and patterns are successfully generated and displayed on the test displays. Major technical issues involved in commercialization of volumetric displays based on this approach is discussed. Potential applications in medical displays, radar/sonar displays, computer aided design, and electronic games are expected.