基于狭缝光栅的一维集成成像双视3D显示  

One-Dimensional Dual-View Integral Imaging Three-Dimensional Display Based on Parallax Barrier

作　　者：吴非 于军胜 

机构地区：[1]成都工业学院电子工程学院,成都611730 [2]电子科技大学光电科学与工程学院,成都610054

出　　处：《电子科技大学学报》2018年第2期317-320,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金(61405129);中国博士后科学基金(2016M592650);四川省应用基础面上项目(2017JY0172)

摘　　要：集成成像双视3D显示是集成成像3D显示技术与双视显示技术的结合,可以在不同的观看方向上呈现不同的3D图像。但是,现有的集成成像双视3D显示存在分辨率较低的缺点。基于此,该文提出了一种基于狭缝光栅的一维集成成像双视3D显示。微图像阵列由两组图像元相间排列组成,两组图像元分别从两个不同的3D场景拍摄获取。首先根据几何光学推导出图像元节距与狭缝节距的数理关系,然后根据3D视区宽度推导出观看视角的计算公式,并分析了最佳观看距离与系统结构参数的数理关系。建立了一维集成成像双视3D显示样机,在左18°～左2°范围内观看到3D场景"CS",而在右2°～右18°范围内观看到3D场景"SC"。Dual-view integral imaging （DVII） three-dimensional （3D） display presents two different 3Dimages in the left and right viewing directions, respectively. However, the low resolution limits the applications ofthe DVII 3D display. This paper proposes a one-dimensional DVII 3D display based on a parallax barrier. Theelement image array is composed of two sets of alternating elemental images. The two sets of elemental images arecaptured from two different 3D scenes, respectively. The mathematical relation between the pitches of elementalimage and slit is deduced through geometrical optics. According to the width of the 3D viewing zone, thecalculation formula of the viewing angle is obtained. The mathematical relation between the optimal viewingdistance and the parameters of the one-dimensional DVII 3D display is also analyzed. A prototype of theone-dimensional DVII 3D display based on the parallax barrier is developed to verify the principle. The 3D scene“CS” is obtained between 18° and 2° to the left, while the 3D scene ‘SC’ is seen between 2° and 18° to the right.

关 键 词：双视 一维集成成像 狭缝光栅 3D显示 

分 类 号：TN141[电子电信—物理电子学]