图像拼接的仿生复眼光学系统设计  

Design of a Biomimetic Compound Eye Optical System based on Image Stitching

作　　者：王媛 杨陈[1] 李世杰 WANG Yuan;YANG Chen;LI Shijie(School of Opto Electronical Engineering,Xi’an Technological University,Xi’an 710021,China)

机构地区：[1]西安工业大学光电工程学院,西安710021

出　　处：《西安工业大学学报》2024年第5期616-624,共9页Journal of Xi’an Technological University

基　　金：陕西省科技厅项目(2024ZC-KJXX-031);西安市科技局项目(23GXFW0034)。

摘　　要：为解决单孔径光学系统受单一探测器尺寸约束,大视场与高分辨率性能相互制约的问题,利用ZEMAX软件设计了一种3*3仿生复眼光学系统,基于SIFT特征匹配算法对经系统所得图像的特征进行提取和匹配,利用RANSAC算法优化匹配对,计算单应矩阵,实现图像的拼接。设计得到的3*3仿生复眼光学系统总视场为22.6°,系统组合焦距为40 mm。系统传递函数在100 lp·mm^(-1)处高于0.4,系统均方根半径最大为12.79μm,系统最大畸变为0.309%,位于视场边缘。该系统结构简单、畸变小,能够满足图像拼接的精度要求。In order to improve the detection capability of optical systems,the paper presents a 3*3 biomimetic compound eye optical system which was designed using the ZEMAX software.The features of the images obtained by the system were extracted and matched by the SIFT feature matching algorithm.Then the RANSAC algorithm was used to optimize the matching pairs,calculate the homography matrix,and ultimately achieve image stitching.The system designed in this paper has a total field of view of 22.6°and a combined focal length of 40 mm.The system transfer function is higher than 0.4 at 100 lp·mm^(-1),the maximum root mean square radius is 12.79μm,and the maximum distortion is 0.309%at the edge of the field of view.Simple in structure and low in distortion,the system can meet the accuracy requirements of image stitching.

关 键 词：仿生复眼光学系统 SIFT算法 图像拼接 畸变 

分 类 号：Q692[生物学—生物物理学] O439[机械工程—光学工程]