光电经纬仪相机位姿光束法平差外场检校  

Outfield Calibration Method of Camera's Position and Attitude on Photoelectric Theodolite Based on Bundle Adjustment

作　　者：侯海啸[1] 贾浩正[1] 吴衡[1] 

机构地区：[1]中国飞行试验研究院,西安710089

出　　处：《光电工程》2013年第5期28-33,共6页Opto-Electronic Engineering

基　　金：航空基金项目(2010ZD30)

摘　　要：相机的安装位置及姿态对光电经纬仪成像质量和最终的测量精度均有影响,本文根据摄影测量原理,提出一种光电经纬仪相机安装位置及姿态的外场校准方法,构建了校准计算数学模型,并在外场环境对多个校准标进行拍摄,利用影像判读对测量角度进行修正,最后利用光束法平差方法解算出相机的安装位置和姿态偏移量,并进行了误差分析。结果表明,利用该方法得到的校准精度较为可靠。Measuring precision and imaging quality are affected by position and attitude for cameras on photoelectric theodolite largely. A method of calibration outfield for the camera on photoelectric theodolite is presented based on the principles of photogrammetry in position and attitude. Firstly, the mathematical model of calibration was established and the calibration mark image outfield was obtained. Secondly, the angle was corrected by identified images and the parameters of the camera in position and attitude were calculated by using the bundle adjustment method. Finally, the precision analysis is made. Testing result shows that the calibration precision is reliable by this method.

关 键 词：光电经纬仪 相机偏移量 摄影测量 光束法平差 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计] TP391.41[自动化与计算机技术—计算机应用技术]