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- 2018
基于空间三维物体重构的光场显示技术综述
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Abstract:
目前的三维显示技术，如视差屏障显示、柱镜光栅显示、多投影显示、扫描立体显示，通过运用双目视差、视觉暂留效应使人眼获得三维图像。这些显示技术将物体显示在二维平面上，并不是在空间中重构出三维物体，丢失了深度信息，易引起聚焦辐辏调节冲突。体三维显示和全息显示可以在空间中重构出三维物体，但所需处理的数据量巨大，目前在计算速度、传输速率等方面都有技术限制。基于空间三维物体重构的光场显示技术利用光场在空间中重构出三维物体，主要包括层叠光场显示、快门光场显示、集成成像光场显示和矢量光场显示。该文分析了各种光场显示技术的原理和特点，认为矢量光场显示技术具有广阔的发展前景。
Abstract：Present 3D displays, such as parallax barrier displays, lenticular lens displays, multi-projection displays, and scanning stereoscopic displays, mimic human eyes to obtain 3D images using binocular parallax and persistence of vision. However, locating the 3D images on 2D planes instead of reconstructing the 3D object losses the depth information and causes the vergence-accommodation conflict. 3D objects can be reconstructed using volumetric and holographic displays. However, these require processing of a large amount of data so there are technical limitations due to computing speeds and transmission rates. This paper introduces light-field displays based on 3D object reconstructions. The 3D object is reconstructed using the light field, such as the stacked light field display, shutter light field display, integrated imaging display, or vector light field display. The principles and characteristics of the light field displays are analyzed with the vector light field display having excellent prospects for future development.
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