基于相机系统设计的大气扰动消扰方法  

Atmospheric Disturbance Elimination Method Based on Camera System Design

作　　者：张家铭[1,2] 孙聪 李涛[1,2] 尚洋 Zhang Jiaming;Sun Cong;Li Tao;Shang Yang(College of AerospaceScience and Engineering,National University of Defense Technology,Changsha,Hunan 410073,China;Hunan Provincial Key Laboratory of Image Measurement and Vision Navigation,Changsha,Hunan 410073,China)

机构地区：[1]国防科技大学空天科学学院,湖南长沙410073 [2]湖南省图像测量与视觉导航重点实验室,湖南长沙410073

出　　处：《光学学报》2019年第12期116-124,共9页Acta Optica Sinica

基　　金：国家自然科学基金(11472302)

摘　　要：介绍一种通过设计相机成像系统来消除大气低频扰动的方法。精密光测工程通常在室外进行,很难避免因大气扰动造成的系统误差。大气扰动可以分为高频扰动和低频扰动两部分,高频扰动部分可以通过滤波消扰等图像处理方法消除。通过搭建相机对视成像系统的约束条件来消除由大气低频扰动引起的光测误差。在高速相机系统成像消扰实验中,利用镜面反射成像完成对视成像系统的标定。对比实验组和对照组的结果发现,测量误差从2.99%缩小至0.35%。结果表明相机成像系统对于大气扰动中的低频扰动消除具有良好的校正效果。This paper describes a method for eliminating atmospheric low frequency disturbances by designing a camera imaging system. Precision optical measurement engineering is usually performed outdoors, so it is difficult to avoid systematic errors caused by atmospheric disturbances. The atmospheric disturbance can be divided into two parts, i.e., high frequency disturbance and low frequency disturbance. The high frequency interference can be eliminated by image processing methods such as filtering. The optical measurement error caused by the atmospheric low frequency disturbance can be eliminated by establishing the constraint condition of the opposite view camera imaging system. We conduct an experiment with high-speed cameras to eliminate atmospheric disturbances, and use the planar mirror reflection imaging to complete the calibration of the camera system. Comparing the results of the experimental group and the control group, the measurement error is reduced from 2.99% to 0.35%. The results show that the camera imaging system has a good correction effect in the low frequency disturbance cancellation in the atmospheric disturbance.

关 键 词：成像系统 精密光测 镜头系统设计 镜面反射标定 大气扰动 

分 类 号：O439[机械工程—光学工程]