72-directional display having VGA resolution for high-appearance image generation
72-directional display having VGA resolution for high-appearance image generation
复制标题
具有 VGA 分辨率的 72 向显示器，可生成高品质图像
DOI：
10.1117/12.650530
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Takeshi Dairiki
中科院分区：
文献类型：
--
作者：
Y. Takaki;Takeshi Dairiki
高密度定向显示最初是为了实现自然3D显示而开发的，它不仅是3D显示，而且是高外观显示。对象的外观(如眩光和透明度)是光线反射和折射的结果。由于光线在显示屏上漫射，因此使用传统的2D显示器不可能忠实地再现对象的这种外观。高密度定向显示器精确控制水平光线方向，使其能够再现物体的外观。物体外观再现的保真度取决于光线角度采样间距。角度采样节距是考虑人眼成像系统而确定的。本研究构建了分辨率为640×400、能发射72个不同水平方向、角度间距为0.38°的高清晰度显示器。将两个72个方向的显示器组合在一起，每个显示器由一个高分辨率LCD面板(3840×2400)和一个倾斜的透镜状薄片组成。由两个显示器产生的两个图像由半个镜子叠加。在每个显示器的透镜片焦平面上放置狭缝阵列，以减少组合图像中的水平图像串扰。印象分析表明，高外观显示器提供了比传统2D显示器更高的外观和存在。
The high-density directional display, which was originally developed in order to realize a natural 3D display, is not only a 3D display but also a high-appearance display. The appearances of objects, such as glare and transparency, are the results of the reflection and the refraction of rays. The faithful reproduction of such appearances of objects is impossible using conventional 2D displays because rays diffuse on the display screen. The high-density directional display precisely controls the horizontal ray directions so that it can reproduce the appearances of objects. The fidelity of the reproduction of object appearances depends on the ray angle sampling pitch. The angle sampling pitch is determined by considering the human eye imaging system. In the present study the high-appearance display which has the resolution of 640×400 and emits rays in 72 different horizontal directions with the angle pitch of 0.38° was constructed. Two 72-directional displays were combined, each of which consisted of a high-resolution LCD panel (3,840×2,400) and a slanted lenticular sheet. Two images produced by two displays were superimposed by a half mirror. A slit array was placed at the focal plane of the lenticular sheet for each display to reduce the horizontal image crosstalk in the combined image. The impression analysis shows that the high-appearance display provides higher appearances and presence than the conventional 2D displays do.