摘要
提出了一种蜂窝式透镜阵列立体元图像的生成方法。首先,通过分析真实透镜的成像原理,建立了成像模型。然后,利用虚拟相机阵列模拟透镜阵列,根据显示端透镜阵列和显示器的参数设置虚拟相机的采集参数。最后,采用投影的方式生成立体元图像阵列。实验结果表明:利用本文方法生成的蜂窝式立体元图像阵列在水平和垂直方向均具有连续的视差变化,且满足子图像与立体元图像之间的投影关系,可以真实再现3D物体的空间信息。本文方法既克服了透镜阵列直接采集存在的空间反转和串扰等问题,又可避免光学采集设备带来的误差,节约成本,可为基于组合成像系统研究提供各种图像来源。
We present a method to generate the element image based on hexagonal lenslet array. By analyzing the imaging principle of real lens we set up the imaging model first. Then, the pick up process of integral imaging is simulated by virtual camera array and the parameters are set according to the display platform. Finally, the pixel mapping is used to generate the elemental image array. Experimental results show that the hexagonal elemental image array generated by the proposed method has continuous horizontal and vertical parallax, satisfies the mapping between subimage and elemental images and can truly represent the spatial information of 3D objects. The proposed method not only overcomes the problems of pseudoscopic and depth reverse generated by lenslet pick up method, but also avoids the error caused by the optical acquisition equipment. In addition, it can save costs and provides various image sources for integral imaging system.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2018年第1期290-294,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金重点项目(61631009)
"十三五"国家重点研发计划项目(2017YFB0404800)
中央高校基本科研业务费专项项目
关键词
通信技术
组合成像
透镜阵列
立体元图像
communication technology
integral imaging
lenslet array
elemental image
