考虑飞机姿态角时倾斜航空相机像移速度计算

翟林培; 刘 明; 修吉宏

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考虑飞机姿态角时倾斜航空相机像移速度计算

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- 考虑飞机姿态角时倾斜航空相机像移速度计算
- Calculation of image motion velocity considering airplane gesture angle in oblique aerial camera
- 光学精密工程 2006年14卷第3期页码：490-494
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： V447.3
- 收稿日期：2005-11-22，
  
  修回日期：2006-04-12，
  
  网络出版日期：2006-06-30，
  
  纸质出版日期：2006-06-30
- 稿件说明：
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翟林培, 刘明, 修吉宏. 考虑飞机姿态角时倾斜航空相机像移速度计算[J]. 光学精密工程, 2006,14(3):490-494.

ZHAI Lin-pei, LIU Ming, XIU Ji-hong. Calculation of image motion velocity considering airplane gesture angle in oblique aerial camera[J]. Optics and precision engineering, 2006, 14(3): 490-494.
翟林培, 刘明, 修吉宏. 考虑飞机姿态角时倾斜航空相机像移速度计算[J]. 光学精密工程, 2006,14(3):490-494. DOI：

ZHAI Lin-pei, LIU Ming, XIU Ji-hong. Calculation of image motion velocity considering airplane gesture angle in oblique aerial camera[J]. Optics and precision engineering, 2006, 14(3): 490-494. DOI：

摘要

飞机的飞行和姿态变化使航空相机在拍照时产生像移

必须通过像移补偿来提高照相分辨率。为获得飞机姿态角变化时在倾斜航空相机像面上的像移速度大小

首先建立姿态变化过程的数学模型

用坐标系的旋转来等同姿态角的变化

然后根据坐标系旋转前后相同点坐标值之间的矩阵转换关系

推算出单个姿态角变化导致的像移速度

最后将此方法推广到三个姿态角都变化时像移速度的计算。实际应用证明了该方法是一种有效的斜视画幅式航空相机的像移速度计算法

且直观、简单易行

还可以扩展到星载相机上。

Abstract

It is necessary to improve the imaging quality and enhance the image resolution of the camera in photographing by Image Motion Compension(IMC)

when the image motion is brought out in airplane’s continuing flight and altering airplane gesture angles including pitching angle

yawing angle and rolling angle. In this paper

a mathematical model was established in order to obtain the velocity of image motion while the gesture angles were changing

in which it is supposed that the rotation of the coordinate system is equal to the change of the gesture angles. The velocity of image motion was calculated out by analyzing the course of the gesture angle’s change and utilizing the matrix transform relation between the different coordinates of the same position after the coordinate system’s rotation in changing single angle. The method can be deduced to the situation of all the three angles’ changing. The result is proved that it is an efficient method to calculate the image motion’s velocity for the oblique frame aerial camera. This method is intuitionistic

practical and easy to be expanded to the camera fixed in satellite also.

关键词

Keywords

references

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. 刘明, 吴宏圣, 匡海鹏,等. 航相机的像移补偿方法及应用[J]. 光学精密工程, 2004, 12(4): 30-34. LIU M, WU H SH, KUANG H P,et al. Method and application of image motion compensation in aerospace camera[J]. Optics and Precision Engineering, 2004, 12(4): 30-34. (in Chinese)

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