远距斜视航空相机获取大场景图像技术研究  

Research on large scene image acquisition technology for distant oblique reconnaissance aerial cameras

作　　者：杨萌[1] 纪明[1] 闫明[1] 高贤娟[1] 陈红[1] YANG Meng;JI Ming;YAN Ming;GAO Xianjuan;CHEN Hong(Xi an Institute of Applied Optics, Xi an 710065, China)

机构地区：[1]西安应用光学研究所

出　　处：《应用光学》2019年第4期627-631,共5页Journal of Applied Optics

基　　金：国防预研项目

摘　　要：针对远距航空相机视场角较小的问题,介绍了目前常用的几种像移补偿技术,并对各种补偿方法进行了比较。采用小面阵相机并结合系统光学元件通过在横滚方向的摆扫实现大场景地面成像,对摆扫过程进行了数学分析,得出了摆扫所需的扫描指令。通过仿真实验验证了推导的数学公式的正确性,仿真结果表明,应用该扫描指令即可通过小面阵航空相机实现地面大场景图像的获取。Aiming at the problem of small field of view of long-range aerial camera, the large-scene ground imaging was realized by utilizing the small-array camera combined with the optical components of the system through the sweeping in the roll direction. The mathematical analysis of the sweeping process was carried out, and the scanning instructions required for sweeping were obtained. Several image motion compensation techniques commonly used at present were introduced, and various compensation methods were compared. The correctness of the mathematical formula was verified by simulation experiments. The simulation experiments show that the scanning command can be used to acquire large scene images on the ground by small array aerial camera.

关 键 词：航空相机 像移补偿 摆动扫描 大场景扫描 

分 类 号：TN911.73[电子电信—通信与信息系统]