An Extended Depth-at-Field Volumetric Near-Eye Augmented Reality Display
An Extended Depth-at-Field Volumetric Near-Eye Augmented Reality Display
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DOI：
10.1109/tvcg.2018.2868570
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发表时间：
2018-09
影响因子：
5.2
通讯作者：
Kishore Rathinavel;Hanpeng Wang;Alex Blate;H. Fuchs
中科院分区：
文献类型：
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作者：
Kishore Rathinavel;Hanpeng Wang;Alex Blate;H. Fuchs
我们引入了全彩体积近眼显示器的光学设计和渲染管道，该显示器在 15 厘米（6.7 屈光度）到 4M（0.25 屈光度）的扩展体积上同时呈现具有近乎精确的每像素焦点的图像，使观看者能够在整个深度范围内自由适应。这是通过使用可调焦镜头来实现的，该镜头连续扫描来自高速数字微镜器件 (DMD) 投影仪的 280 个同步二进制图像序列，以及高速、高动态范围 (HDR) 光源，该光源在每个二进制帧上以不同的颜色和亮度照亮 DMD 图像。我们的渲染管道将 3D 场景信息转换为彩色体素的 2D 表面，并以面向体素的方式分解为 280 个二值图像，从而可以显示全彩色体素的 280 个不同深度位置。
We introduce an optical design and a rendering pipeline for a full-color volumetric near-eye display which simultaneously presents imagery with near-accurate per-pixel focus across an extended volume ranging from 15cm (6.7 diopters) to 4M (0.25 diopters), allowing the viewer to accommodate freely across this entire depth range. This is achieved using a focus-tunable lens that continuously sweeps a sequence of 280 synchronized binary images from a high-speed, Digital Micromirror Device (DMD) projector and a high-speed, high dynamic range (HDR) light source that illuminates the DMD images with a distinct color and brightness at each binary frame. Our rendering pipeline converts 3-D scene information into a 2-D surface of color voxels, which are decomposed into 280 binary images in a voxel-oriented manner, such that 280 distinct depth positions for full-color voxels can be displayed.