基于非均匀棱镜阵列的三维集成成像视角增强方法  

Wide-viewing angle integral imaging system with a non-uniform prism array

作　　者：张建磊[1] 王晓蕊[1] 张启平[1] 

机构地区：[1]西安电子科技大学物理与光电工程学院,陕西西安710071

出　　处：《光电子．激光》2014年第3期602-607,共6页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61007014)资助项目

摘　　要：针对传统集成成像系统视角受限于单元透镜尺寸及其焦长的问题,提出了一种基于非均匀棱镜阵列的三维集成成像视角增强方法。以传统集成成像重构显示原理为基础,借助于非均匀棱镜阵列对重构光线的偏转作用,设计了显示透镜阵列和非均匀棱镜阵列组合的立体显示模式。依据集成成像的三维重构显示原理,利用光线追迹理论,导出了非均匀棱镜阵列的结构参数和集成成像系统视角之间的关系模型。仿真实验表明,基于非均匀棱镜阵列的集成成像系统视角比传统集成成像系统有了显著提高。In conventional integral imaging, the viewing angle is limited by the pitch and focal length of el- ement lens of the lens array. In this regard, a three-dimensional integral imaging display system with non- uniform prism array placed in front of the display lens array is proposed to realize a wide viewing angle for the three-dimensional reconstructed image. The size and shape of element prism of the non-uniform prism array are the same to those of the element lens of display lens array. In our scheme,based on the display principle of conventional integral imaging, a three-dimensional integral imaging display model with lens array and non-uniform prism array is designed theoretically by using the deflection ability of non-u- niform prism array to the reconstruction light. The optical property of non-uniform prism array is ana- lyzed from the point of integral imaging. A comparison of the viewing angle property between the con- ventional integral imaging and the proposed method is made. In addition, based on the reconstruction principle of an integral imaging system,the ray tracing theory is utilized to derive the quantitative rela- tionship model between the structure parameters of the non-uniform prism array and the viewing angle of the integral imaging system. Finally,the simulation results show that the viewing angle of the proposed method has been significantly improved compared with the conventional integral imaging system.

关 键 词：集成成像 视角 非均匀棱镜阵列 偏转 单元透镜阵列 

分 类 号：TN27[电子电信—物理电子学]