靶场飞行目标弱透视投影姿态测量可行性研究  

Feasibility on attitude measurement of flying target using weak perspective projection in range

作　　者：胡小丽[1] 张三喜[1] 唐明刚[1] 容晓龙[1] 吴海英[1] 刘彪[1] 

机构地区：[1]中国华阴兵器试验中心,陕西华阴714200

出　　处：《应用光学》2017年第3期445-450,共6页Journal of Applied Optics

基　　金：军内科研项目(2013SYB6010)

摘　　要：为了探讨弱透视投影应用于靶场远距离、小视场姿态测量的可行性,以轴对称回转体目标为例,充分利用透视成像信息及弱透视投影原理,逆向推导了单站弱透视投影的姿态测量模型,实际试验结果证明了弱透视投影在靶场姿态测量中的可行性,在文中所述的试验环境下,弱透视投影与透视投影之间误差不超过0.05°;明确了在靶场远距离、小视场姿态测量环境下,弱透视投影误差主要来源于作用距离;推导了算法适用的极限作用距离。以上研究为靶场弱透视投影远距离、小视场姿态测量奠定了一定的理论基础。The objective of this paper is to explore feasibilities on attitude measurement of flying targets of remote and small field of view in range using weak perspective projection. Taking axis symmetric rotating object as an example, attitude measurement module of monocular vision is derived reversely by using projection image information and weak perspective projection princi- ple. Experiment results verifies feasibilities of range attitude measurement in weak perspective projection, Under mentioned testing environments, error between weak perspective projection and perspective projection is less than 0.05%, and it mainly derives from operation range. Ulti- mate operating range is derived with algorithm applied. This study above lays a theoretical foun- dation for attitude measurement of flying targets of remote and small field of view in range.

关 键 词：弱透视投影 姿态测量 极限作用距离 傍轴条件 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]