Compensation for long focus oblique real-time aerial camera being out of focus

HUI Shou-wen

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Compensation for long focus oblique real-time aerial camera being out of focus

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- Compensation for long focus oblique real-time aerial camera being out of focus
- Optics and Precision Engineering Vol. 11, Issue 2, Pages: 162-165(2003)
- 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, 130022
- 作者简介：
- 基金信息：
- DOI：
  CLC： V447.3
- Received：07 December 2002，
  
  Revised：25 February 2003，
  
  Published Online：15 April 2003，
  
  Published：15 April 2003
- 稿件说明：
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惠守文. 长焦距斜视实时航空相机离焦补偿[J]. 光学精密工程, 2003,(2): 162-165

HUI Shou-wen. Compensation for long focus oblique real-time aerial camera being out of focus[J]. Editorial Office of Optics and Precision Engineering, 2003,(2): 162-165
惠守文. 长焦距斜视实时航空相机离焦补偿[J]. 光学精密工程, 2003,(2): 162-165 DOI：

HUI Shou-wen. Compensation for long focus oblique real-time aerial camera being out of focus[J]. Editorial Office of Optics and Precision Engineering, 2003,(2): 162-165 DOI：

摘要

基于一种长焦距斜视实时航空相机的研制

探讨了导致相机离焦的原因

指出环境(大气压力、温度)变化和照相斜距的变化是导致相机离焦的主要原因

分别从温度、大气压力、照相斜距这三个方面的变化对相机离焦的影响进行讨论

给出了计算相机离焦量的简易数学方程。通过对相机斜距离焦的分析

提出了一种新的离焦补偿方法

研制出一种双层导轨、双层凸轮的自动调焦补偿机构

使相机在照相过程中保持像面稳定

并对斜距调焦原理进行了实际检验。

Abstract

Based on the experience gained from the development of a long focus

oblique

real-time

aerial camera

it is pointed out that the camera maybe out of focus is due to changes in temperature

atmospheric pressure and oblique photographic distance. The effect of these three factors on a camera is discussed and a simple mathematical equation is proposed for calculation of how much a camera is out of focus. A new simple method is to compensate out of focus of oblique photographic distance. The principle is very easy to implement. Finally

the paper introduces a auto-focusing system with double-deck guideway and double-deck cam

and its focusing of oblique photography is tested.

关键词

Keywords

references

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李朝晖. 图像矩心内插法在空间相机实时检焦中的应用[J]. 光学精密工程,2000, 8(4):335-339.LI ZH H. Application of centroid sensing method in real-time autofocusing system used in space camera[J].Optics and Precision Engineering,2000,8(4):335-339.(in Chinese)

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