RePro3D: full-parallax 3D display using retro-reflective projection technology
RePro3D: full-parallax 3D display using retro-reflective projection technology
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RePro3D：采用回归反射投影技术的全视差3D显示
DOI：
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发表时间：
2010
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通讯作者：
S. Tachi
中科院分区：
文献类型：
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作者：
Takumi Yoshida;Sho Kamuro;K. Minamizawa;Hideaki Nii;S. Tachi
运动视差对于识别3D图像的深度非常重要。近年来，人们开发了许多可以用肉眼看到视差图像的3D显示方法。此外，在设计界面方面的研究也有所增加，这些界面使人类能够直观地与用手操作3D物体进行交互。然而，实现3D对象交互，就像用户在现实世界中实际触摸对象一样，是相当困难的。造成这种情况的原因之一是，传统方法中的屏幕形状仅限于平板。此外，在显示3D图像和感知用户输入之间很难达到平衡。因此，我们提出了一种适用于交互式3D应用的新型全视差3D显示系统。我们称这个系统为rep3d。我们的方法基于反向反射投影技术[Inami et al. 2000]。来自投影仪阵列的许多图像被投射到反射屏幕上。当用户通过半镜子看屏幕时，他或她不需要使用眼镜，就可以看到具有运动视差的3D图像。我们可以根据应用程序选择屏幕形状。不需要根据屏幕形状进行图像校正。因此，我们可以设计触敏软屏、复杂曲面屏或具有自动移动表面的屏。rep3d具有识别用户输入的传感器功能。使用它可以实现一些交互功能，如3D对象的操作。
Motion parallax is important to recognize the depth of a 3D image. In recent years, many 3D display methods that enable parallax images to be seen with the naked eye have been developed. In addition, there has been an increase in research to design interfaces that enable humans to intuitively interact with and operate 3D objects using their hands. However, realizing 3D object interaction as if the user is actually touching the object in the real world is quite difficult. One of the reasons for this is that the screen shape in conventional methods is restricted to a flat panel. In addition, it is difficult to achieve a balance between displaying the 3D image and sensing the user input. Therefore, we propose a novel full-parallax 3D display system that is suitable for interactive 3D applications. We call this system RePro3D. Our approach is based on a retro-reflective projection technology[Inami et al. 2000]. A number of images from a projector array are projected onto the retro-reflective screen. When a user looks at the screen through a half mirror, he or she, without the use of glasses, can view a 3D image that has motion parallax. We can choose the screen shape depending on the application. Image correction according to the screen shape is not required. Consequently, we can design a touch-sensitive soft screen, a complexly curved screen, or a screen with an automatically moving surface. RePro3D has a sensor function to recognize the user input. Some interactive features, such as operation of 3D objects, can be achieved by using it.