一种抑制封闭式多投影仪显示系统的光干扰方法

计算机与现代化

一种抑制封闭式多投影仪显示系统的光干扰方法

1.四川大学计算机学院,四川成都610065；
2.四川大学视觉合成图形图像技术国防重点学科实验室,四川成都610065

收稿日期:2014-07-10 出版日期:2014-11-27 发布日期:2014-12-10
作者简介:郭欣（1987-），女，湖北黄冈人，四川大学计算机学院硕士研究生，研究方向：计算机图形图像处理；张建伟，男，研究员，博士生导师，研究方向：计算机图形图像处理，空管自动化；肖朝，男，博士研究生，研究方向：计算机图形图像处理,计算机图形学。
基金资助:
国家863计划资助项目（2012AA011804）

A Way to Prevent Optical Interference of Multi-projector Display System

1. College of Computer Science, Sichuan University, Chengdu 610065, China;

2. National Key Laboratory of Fundamental Science on Synthetic Vision, Sichuan University, Chengdu 610065, China

Received:2014-07-10 Online:2014-11-27 Published:2014-12-10

摘要/Abstract

摘要：

360°全封闭式多投影显示系统中，为了减少各投影画面出现光线多次漫反射相互干扰，采用基于数字图像处理技术的校正方法对帧缓存的图像进行预处理，通过分析光干扰前后投影图像

像素值的变化，建立帧缓存图像、光干扰前投影图像、光干扰后投影图像这三者之间的模型关系，得出预处理校正方案。经过实验证明，该技术对由封闭式多投影显示系统光干扰造成的图像对比度降低

是可行的，且得到了很好的效果。

关键词: 封闭, 多投影, 漫反射, 光干扰

Abstract:

In the 360° fully enclosed multi-projection display system, in order to reduce the interference between projections by light diffuse reflection from

projection screen, correction scheme based on digital image processing technology is used to preprocess the image of frame buffer. Correction scheme by proprocessing is enforced

by analysing the difference between pre-interference and pro-interference image, then the model relationship among the image of frame buffer, the image of pre-interference

projection and the image of pro-interference projection image is established. Proved by the experiment, the technology has good effect on solving the problem of image contrast

droped by light interference in totally closed multi-projection display system.

Key words: close, multi-projection, diffuse reflection, optical interference

郭欣1,2，张建伟1,2，肖朝1,2. 一种抑制封闭式多投影仪显示系统的光干扰方法[J]. 计算机与现代化.

GUO Xin1,2, ZHANG Jian-wei 1,2, XIAO Chao1,2. A Way to Prevent Optical Interference of Multi-projector Display System[J]. Computer and Modernization.

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