基于数字微镜的旋转体三维显示装置研究  

Volumetric 3D display device based on DMD utilizing a rotating screen

作　　者：李莉[1] 李玉峰[1] 沈春林[1] 龚华军[1] 杨忠[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《仪器仪表学报》2008年第1期67-72,共6页Chinese Journal of Scientific Instrument

基　　金：国家"863"项目(2005AA311020;2006AA01Z327);博士点基金(20030287008)资助项目

摘　　要：体三维显示是实现真正三维立体图像显示的新技术。首次提出了一种基于数字微镜的旋转体三维显示方案,利用人眼视觉暂留的特性,设计完成了一套空间三维显示装置,通过数字微镜设备快速投影一系列连续的二维图像序列,由旋转运动的成像靶屏截获图像流信息,形成了具有空间真实体积的三维立体图像。简要介绍了系统的显示原理及组成,重点阐述显示装置的设计,详细研究了数字微镜的接口能力以及对系统显示性能的影响,实验证明与基于矢量扫描振镜方式相比,基于数字微镜的三维显示装置已完全具备了在真实空间实现复杂三维图像显示的能力,并通过对成像结果的分析给出了进一步提高改进的相应措施。A novel volumetric 3D display is presented in this paper. A sequence of two-dimensional slice information of a three-dimensional image is projected by a digital micro-mirror device onto a rotating plane, due to persistence of vision the image is reconstructed within the cylindrical volume swept out by the display plane. The structure and prin-ciple of the display method are introduced, the design of the display device is described in detail; and the DMD data interface and its influence on system performance are examined totally. Experiment results show that the implementation of a volumetric 3D display based on DMD can display more complicated real 3D image than the mirror-laser system, which proves the effectiveness of the proposed method. At last, some measures for improving the quality of 3D image are derived from imaging analysis results.

关 键 词：体三维显示 数字微镜设备 视觉暂留 显示装置 

分 类 号：TN141[电子电信—物理电子学] TP334.1[自动化与计算机技术—计算机系统结构]