具有平滑运动视差的三维显示技术  

Three-Dimensional Display with Smooth Motion Parallax

作　　者：桑新柱[1] 于迅博 赵天奇[1] 邢树军[1] 高鑫[1] 王鹏[1] 孙蕾[1] 余重秀[1] 徐大雄[1] 

机构地区：[1]北京邮电大学信息光子学与光通信国家重点实验室,北京100876

出　　处：《中国激光》2014年第2期92-96,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(61177018);北京市科技计划重点项目(D121100004812001);教育部新世纪优秀人才项目(NECT-11-0596);北京市科技新星项目(2011066)

摘　　要：为了实现自然的三维显示,需要按照真实物体呈现方式同时具有双目视差和平滑的运动视差。增加视点数量并提供平滑运动视差通常需要大量的空间信息,依靠大量的数据信息最终可以实现模拟真实场景效果的目的。全息立体图可用于显示三维离散图像或一组三维的空间数据,具有良好的观测效果。给出了三种实现平滑运动视差的三维显示方法,显示效果等同于全息立体图。基于液晶显示屏生成的数字蒙版与高精度柱镜阵列,实验实现了56°角内1200个视点连续的三维显示。在50.7cm×28.5cm的显示屏幕上实现超过40cm的景深。利用尺寸为1.3m×1.8m的全息功能屏幕、视频服务器、相机投影机阵列,可以实现高连续性三维场景再现,深度超过1m。利用分辨率为3840pixel×2160pixel的50inch(1inch=2.54cm)液晶显示面板生成的数字断层图像实现了具有连贯运动视差的三维显示。To simulate the natural three-dimensional （3D） display, both binocular parallax and smooth motion parallax are required. Normally, it requires a huge amount of spatial information to increase the number of views and to provide smooth motion parallax for natural 3D display similar to real life. Holographic stereogram can be used to display a description of 3D discrete images or a set of 3D data points. Here, three methods are used to realize natural 3D displays with smooth motion parallax, which are functionally equivalent to the holographic stereogram. With digitally generated active partially pixelated masks in the liquid crystal panel combining with a precision lenticular lens array, the 3D display with 1200 views from a computer numerical model is demonstrated in 56＂ viewing angle. The displayed depth is more than 40 cm and the screen size is 50.7 cm × 28.5 cm. With a holographic functional screen with a size of 1.3 m × 1.8 m, a demonstrated system including optimally designed camera-projector arrays and a video server can display the fully continuous 3D scene with more than 1 m image depth. Based on the digitally generated tompographic images, a 3D display with smooth motion parallax is demonstrated in a 50 inch （1 inch=2.54 cm） LCD panel with the resolution of 3840 pixel × 2160 pixel.

关 键 词：全息 三维显示 运动视差 全息功能屏 蒙版 断层图像 超多视点 

分 类 号：TN27[电子电信—物理电子学]