Light Attenuation Display: Subtractive See-Through Near-Eye Display via Spatial Color Filtering
Light Attenuation Display: Subtractive See-Through Near-Eye Display via Spatial Color Filtering
复制标题
DOI：
10.1109/tvcg.2019.2899229
复制
发表时间：
2019-03
影响因子：
5.2
通讯作者：
Yuta Itoh;T. Langlotz;D. Iwai;K. Kiyokawa;Toshiyuki Amano
中科院分区：
文献类型：
--
作者：
Yuta Itoh;T. Langlotz;D. Iwai;K. Kiyokawa;Toshiyuki Amano
我们提出了一种基于光衰减的光学透明近眼显示器，这是一种通过空间减去光的颜色来形成图像的新范例。现有的光学透明头戴式显示器（ost - hmd）以一种附加的方式形成虚拟图像——它们将来自嵌入式光源（如微显示器）的光光学地组合到用户的视野（FoV）中。相反，我们的光衰减显示器在用户的透明视图中按像素过滤真实背景光的颜色，从而使图像成为空间颜色过滤器。我们的图像形成是对现有光加性ost - hmd的补充。我们系统的核心光学元件是一个纯相位空间光调制器（PSLM），一个液晶模块，可以控制每个像素中的光的相位。该系统将pslm与偏振光学器件相结合，实现了空间可编程滤色器。在本文中，我们介绍了我们的光学设计，评估了空间滤色器，考虑了包括图像渲染和视场颜色控制在内的应用，并讨论了当前原型的局限性。
We present a display for optical see-through near-eye displays based on light attenuation, a new paradigm that forms images by spatially subtracting colors of light. Existing optical see-through head-mounted displays (OST-HMDs) form virtual images in an additive manner—they optically combine the light from an embedded light source such as a microdisplay into the users' field of view (FoV). Instead, our light attenuation display filters the color of the real background light pixel-wise in the users' see-through view, resulting in an image as a spatial color filter. Our image formation is complementary to existing light-additive OST-HMDs. The core optical component in our system is a phase-only spatial light modulator (PSLM), a liquid crystal module that can control the phase of the light in each pixel. By combining PSLMs with polarization optics, our system realizes a spatially programmable color filter. In this paper, we introduce our optics design, evaluate the spatial color filter, consider applications including image rendering and FoV color control, and discuss the limitations of the current prototype.