Flat Panel Light-Field 3-D Display: Concept, Design, Rendering, and Calibration
Flat Panel Light-Field 3-D Display: Concept, Design, Rendering, and Calibration
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DOI：
10.1109/jproc.2017.2686445
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发表时间：
2017-05-01
影响因子：
20.6
通讯作者：
Park, Du Sik
中科院分区：
文献类型：
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作者：
Nam, Dongkyung;Lee, Jin-Ho;Park, Du Sik
目前的自动立体3-D（A3 D）显示器受到诸如窄视角、低分辨率和浅深度效果的许多限制。由于这些限制主要源于像素资源的不足，因此不容易获得能够同时解决所有限制的可行解决方案。在许多情况下，最好是找到一个好的折衷设计。通常，多视图显示器和整体成像显示器是A3 D的代表设计。然而，由于它们过于规范，在设计上缺乏灵活性，它们往往是一种折衷。为了解决这些设计问题，我们分析了多视图显示和整体图像显示在一个光场坐标，并开发了一个三维显示设计框架中的光场空间。开发的框架不再使用“视图”概念。相反，它考虑了三维显示器光线的空间分布，并提供了更灵活和复杂的设计方法。在本文中，开发的设计方法解释使用一种新的像素值分配算法，称为光场渲染，和基于视觉的三维显示器的参数校准方法。我们还分析了由深度和显示特性引起的模糊效果。通过实现所提出的方法，我们设计了一个65英寸96视图显示器与4K面板。开发的原型显示了几乎无缝的视差，具有与传统的四至五视图显示器相当的高分辨率。本文将有助于对A3 D显示器，特别是多视图和整体成像显示器感兴趣的读者。
Recent autostereoscopic 3-D ( A3D) displays suffer from many limitations such as narrow viewing angle, low resolution, and shallow depth effects. As these limitations mainly originate from the insufficiency of pixel resources, it is not easy to obtain a feasible solution that can solve all the limitations simultaneously. In many cases, it will be better to find a good compromising design. Generally, the multiview display and the integral imaging display are the representative designs of A3D. However, as they are too canonical and lack flexibility in design, they tend to be a tradeoff. To address these design issues, we have analyzed the multiview display and the integral image display in a light-field coordinate and developed a 3-D display design framework in a light-field space. The developed framework does not use the "view" concept anymore. Instead, it considers the spatial distribution of rays of the 3-D display and provides more flexible and sophisticated design methods. In this paper, the developed design method is explained using a new pixel value assigning algorithm, called the light-field rendering, and vision-based parameter calibration methods for 3-D displays. We have also analyzed the blur effects caused by the depth and display characteristics. By implementing the proposed method, we have designed a 65-in 96-view display with a 4K panel. The developed prototype has showed almost seamless parallax with a high-resolution comparable to the conventional four to five views displays. This paper will be useful to readers interested in A3D displays, especially in the multiview and the integral imaging displays.