相机保护罐玻璃对摄影测量精度的影响规律分析与误差补偿  

Analysis and error compensation of the effect of the protection tank of camera on the photogrammetry accuracy

作　　者：程志强[1] 冯其强[1] 易旺民[2] 李宗春[1] 王永强[1] 

机构地区：[1]解放军信息工程大学地理空间信息学院,郑州450001 [2]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2016年第2期206-210,共5页Spacecraft Environment Engineering

基　　金：航天器联合测量实验室基金项目资助(CAST-511创新基金)

摘　　要：文章通过统计相机镜头处加玻璃前后点位的位移分布规律,选择合适数学模型,将玻璃对测量精度造成的影响减弱。现已完成相机保护罐玻璃对测量精度影响的实验,实验表明:加玻璃后像点坐标变化量最大约为5μm,该变化量的分布与镜头畸变规律相似。最后将其影响划归为径向畸变模型,并通过实验证明该方法能够有效减弱玻璃对测量精度影响。The appropriate mathematical model is chosen to reduce the effects on the accuracy by comparing the differences of the displacement distribution before and after applying the glasses. The experiment shows that the protective cover glass of camera has an influence on the measurement accuracy, and the biggest variation of the coordinate of the image point is approximately 5 micrometers and the distribution of the variation consists with the radial distortion. Finally, the influence could be replaced by a radial distortion model and the experiment shows that this method can effectively reduce the effects of the glass on the measurement accuracy.

关 键 词：真空高低温 数字工业摄影测量 相机保护罐 径向畸变 测量精度 

分 类 号：P234.1[天文地球—摄影测量与遥感]