摘要
利用高速一维LED阵列和圆柱形视差光栅构建了一套360°可视的空间三维显示系统。为了提高它的显示效果,分析了这种系统的成像原理,推导了系统的分辨率、刷新率、显示空间等主要显示参数与系统结构参数之间的关系,并提出了一种提高分辨率的方法。根据分析结果制作了原理样机,同时设计了基于FPGA与并行处理技术的图像传输与分发系统。图像分辨率达到了周视1380pixel,垂直480pixel,并在φ383mm×480mm的柱形显示空间内达到了233pixel×480pixel的单视角分辨率。
An omnidirectional 3D display system is built with the use of scanning LED and cylindrical parallax barrier. To improve image quality, the imaging principle of this system is analysed. The relation between system structure and display parameters, such as resolution, refresh rate and display space, is discussed. A method to increase the resolution is also proposed. Based on the analysis result, an experimental display system is produced. The images have a resolution of 1380 circumferential pixels and 480 vertical pixels, achieving a single-view-angle resolution of 233 pixel×480 pixel within a cylindrical space of 383 mm×480 mm.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2011年第12期318-322,共5页
Acta Optica Sinica
基金
国家973计划(2009CB320803)资助课题
关键词
成像系统
全景三维显示
视差光栅
时序扫描
imaging systems omnidirectional display parallax barrier sequential scan
