线阵相机二维高精度内方位元素标定

远国勤; 郑丽娜; 张洪文; 丁亚林; 孙建军; 于春风; 张壮

doi:10.3788/OPE.20192708.1901

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线阵相机二维高精度内方位元素标定

信息科学 | 更新时间：2020-08-13

- 线阵相机二维高精度内方位元素标定
- Multi-dimensional high-precision calibration method for line-scan camera
- 光学精密工程 2019年27卷第8期页码：1901-1907
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所中国科学院航空光学成像与测量重点实验室，吉林长春 130033
- 作者简介：
  
  [ "远国勤(1982-)，男，河南周口人，博士，副研究员，2007年于吉林大学获得硕士学位，2012年于中国科学院长春光学精密机械与物理研究所获得博士学位，主要从事航空测绘相机光机结构设计、相机几何标定、图像处理等方面的研究。E-mail：yuanguoqin@139.com" ]
  [ "郑丽娜(1979-)，女，河南洛阳人，博士，副研究员，研究生导师，2003年于吉林大学获得学士学位，2013年于中国科学院长春光学精密机械与物理研究所获得博士学位，主要从事航空相机电子学设计、相机几何标定、图像处理等方面的研究。E-mail：ailsazheng@163.com" ]
- 基金信息：
  
  国家高分重大专项资助项目(30-H32A01-9005-13/15)
- DOI：10.3788/OPE.20192708.1901
  中图分类号： V447.3; TN942.2
- 收稿日期：2019-01-12，
  
  录用日期：2019-2-25，
  
  纸质出版日期：2019-08-15
- 稿件说明：
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远国勤, 郑丽娜, 张洪文, 等. 线阵相机二维高精度内方位元素标定[J]. 光学精密工程, 2019,27(8):1901-1907.

Guo-qin YUAN, Li-na ZHENG, Hong-wen ZHANG, et al. Multi-dimensional high-precision calibration method for line-scan camera[J]. Optics and precision engineering, 2019, 27(8): 1901-1907.
远国勤, 郑丽娜, 张洪文, 等. 线阵相机二维高精度内方位元素标定[J]. 光学精密工程, 2019,27(8):1901-1907. DOI： 10.3788/OPE.20192708.1901.

Guo-qin YUAN, Li-na ZHENG, Hong-wen ZHANG, et al. Multi-dimensional high-precision calibration method for line-scan camera[J]. Optics and precision engineering, 2019, 27(8): 1901-1907. DOI： 10.3788/OPE.20192708.1901.

摘要

针对精密测角算法标定线阵相机内方位元素时仅标定一维方向的主点坐标及畸变，导致该标定算法适应性及精度受限的问题，提出了一种线阵相机二维高精度内方位标定方法。首先，分析了线阵相机内方位元素模型，然后，针对该模型提出了一种基于二维转台的二维标定方法，并给出了详细的标定步骤及数据处理方法，最后，将本文提出方法的标定结果与精密测角算法的标定结果进行了对比，结果表明，本文提出的标定方法的重投影误差为0.34 pixel，相比于精密测角算法的1.25 pixel，显著提高了标定精度，且标定时不需要进行对准、调平等操作，标定过程操作简单。

Abstract

In this study

to address the problem of limited adaptability and accuracy of the exact measuring angle method

which only calibrates the principal point and distortion in a one-dimensional direction with a line-scan camera

a two-dimensional high-precision calibration method for a line-scan camera was proposed. First

the inner orientation elements model of a line-scan camera was analyzed. Then

a two-dimensional calibration method based on a two-axis precise rotation stage was proposed for the model. Detailed calibration steps and data processing methods were also given. Finally

the calibration results of the proposed method were compared with those of the exact measuring angle method. The results show that the reprojection error of the calibration method proposed in this study is 0.34 pixels

which is a significant improvement in calibration precision when compared to the 1.25 pixels of the exact measuring angle method. The proposed calibration method does not require alignment

and the calibration process is simple.

关键词

Keywords

references

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