基于单片 DMD 的裸眼立体显示的实现方法研究

摘要

There are a lot of stereoscopic display facilities based on flat panel displays (PDPs and LCDs).But these facilities are very expensive with big screen (bigger than 50 inch). This paper presents a realiza-tion method of nakedness-eye stereoscopic display based on single chip DMD. The foundation of this meth-od is horizontal parallax. On analysing the principe of DLP display and the transfer characteristics of com-ponents(UHP lamp, color-wheel, DMD chip, Lens group, and screen) authors designed a set of algorithm which is implemented in the FPGA. When the stereoscopic image pairs or computer generated 3D graphics are input to the FPGA, the FPGA produces parallax image sequences to the DMD driver board and the sync signal to the parallax actuator. So the stereoscopic image can be observed at the view zone without glasses or other encumbering viewing aids.%目前基于平板显示的立体显示设备有很多,比如等离子显示(PDP)和液晶显示(LCD).这些显示设备在超过 50 英寸时,价格都非常昂贵.本文提出了一种新的基于单片 DMD 的裸眼立体显示的实现方法.在分析DLP的显示原理和利用水平视差产生立体图像的机理以及系统构件(高压汞灯、色轮、数字微镜、透镜组、屏幕等)的传输特性的基础上,使用一种算法,在 FPGA 中把输入的视频图像分解为带有视差的图像序列,分别送到 DMD;同时产生视差同步信号,驱动执行部件.这样,在 DLP 显示屏前一定的区域内可以裸眼观察到立体图像.其特点是:单片 DMD 大屏幕显示;裸眼显示(不需佩戴特殊眼镜),立体景深可调;不损失器件的物理分辨率.