基于多准直器测角仪的航测相机实验室物镜畸变检校方法  

A calibration method for aerial camera laboratory distortion based on the multi-collimator goniometer

作　　者：胡海彦[1] 杨韫澜 牛向华 曹彬才 高力[1,2] HU Haiyan;YANG Yunlan;NIU Xianghua;CAO Bincai;GAO Li(Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;State Key Laboratory of Geo-Information Engineering,Xi'an 710054,China;Unit 32021,Beijing 100094,China)

机构地区：[1]西安测绘研究所,陕西西安710054 [2]地理信息工程国家重点实验室,陕西西安710054 [3]32021部队,北京100094

出　　处：《测绘科学与工程》2021年第2期22-29,共8页Geomatics Science and Engineering

摘　　要：高精度航空摄影测量过程中应对物镜畸变造成的影响应予以充分考虑。在对物镜畸变误差成因分析的基础上,给出了基于多准直器测角仪的航测相机实验室物镜畸变检校方法,推导了给定检校畸变参数下的航摄影像像点坐标改正量计算公式,并通过具体算例量化分析了物镜畸变误差改正效果,可为航空或航天摄影测量在特定测图精度要求下的相机检校内容项与计算方法提供技术借鉴。The effects of camera lenses distortion should be fully considered in high-precision aerial photogrammetry.After analyzing the distortion error of the objective lenses,a calibration method for aerial camera laboratory distortion based on the multi-collimator goniometer is given,and the formula for calculating the coordinate correction of aerial image points with a given calibration distortion parameter is derived.The distortion error correction effect is quantitatively analyzed with specific calculation examples,which will provide technical reference for the camera calibration items and corresponding calculation methods of aerial or aerospace photogrammetry with specific mapping accuracy requirements.

关 键 词：航测相机 多准直器测角仪 物镜畸变 像点偏移 系统误差 

分 类 号：P208[天文地球—地图制图学与地理信息工程]