红外系统小目标成像自动调光方法

张涛

doi:10.3788/YJYXS20163104.0399

您当前的位置：

首页 >

文章列表页 >

红外系统小目标成像自动调光方法

显示与图像 | 更新时间：2020-08-12

- 红外系统小目标成像自动调光方法
- Method of auto light control for small target in infrared system
- 液晶与显示 2016年31卷第4期页码：399-403
- 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,130033
- 作者简介：
  
  [ "张涛(1982-),男,河南信阳人,副研究员,主要从事机器视觉及计算机网络方面的研究。E-mail:20737887@qq.com" ]
- 基金信息：
- DOI：10.3788/YJYXS20163104.0399
  中图分类号： TP732+.2
- 收稿日期：2015-06-08，
  
  修回日期：2015-06-25，
  
  纸质出版日期：2016-04-05
- 稿件说明：
移动端阅览
张涛,. 红外系统小目标成像自动调光方法[J]. 液晶与显示, 2016,31(4): 399-403

ZHANG Tao,. Method of auto light control for small target in infrared system[J]. , 2016,31(4): 399-403
张涛,. 红外系统小目标成像自动调光方法[J]. 液晶与显示, 2016,31(4): 399-403 DOI： 10.3788/YJYXS20163104.0399.

ZHANG Tao,. Method of auto light control for small target in infrared system[J]. , 2016,31(4): 399-403 DOI： 10.3788/YJYXS20163104.0399.

摘要

提出了一种实时调整红外相机积分时间的方法。针对成像为点目标且灰度值变化剧烈的情况

为保证红外辐射特性测量的精度

标定了相机在不同积分时间下亮度与成像灰度值的对应关系

确定了红外相机响应关系线性度较好的区域;提出了点目标弥散范围的计算方法

并对红外系统的模拟图像和真实图像进行匹配获得最优化估计的目标位置、尺寸以获取目标的所有灰度值

而后根据亮度与灰度的关系对积分时间进行调整。实验结果证明

可同时调整两个不同红外相机的积分时间以保证灰度值处于理想区间内

调整频率可达25 Hz

满足高速飞行器试验的实时性要求。

Abstract

A measurement method for real-time adjusting integer time of infrared camera is proposed. Since the image of target is a point and the gray value is verified severely

the relationship between light and gray values in different integer times is calibrated for the precision of radiation measurement and the linear curve of response is fitted. Then the algorithm for the diffuse image spot of target in the detector is proposed. Furthermore

the size and central position of the target are estimated accurately by matching the simulated image and the actual image obtained from the IR imaging system. The total gray value is got and the integer time is adjusted based on the relationship between light and gray value. The experiment result shows that the integer time of two different cameras is adjusted

the gray value is in the linear region and the frequency is 25 Hz and the real-time request in the high speed air vehicle is met.

关键词

Keywords

references

牟达, 李全勇, 董家宁. 地基红外系统探测空间目标红外星等的分析[J]. 红外与激光工程, 2011, 40(9):1609-1613. MU D, LI Q Y, DONG J N. Analysis on ground-based infrared detection system detecting the infrared magnitude of space targets[J]. Infrared and Laser Engineering, 2011, 40(9):1609-1613. (in Chinese)

李春来, 王跃明, 刘银年, 等. 空间目标红外辐射谱测量系统[J]. 红外与激光工程, 2007, 36(6):857-861. LIC L, WANG Y M, LIU Y N, et al. Spectrum measurement system of infrared radiation for spatialobject[J]. Infrared and Laser Engineering, 2007, 36(6):857-861. (in Chinese)

张云峰. 基于加权最小二乘法的红外辐射定标[J]. 液晶与显示, 2012, 27(6):832-836. ZHANGY F. Radiance Calibration based on weighted least square method[J]. Chinese Journal of Liquid Crystals and Displays, 2012, 27(6):832-836. (in Chinese)

郝允祥, 陈增生, 周克平.红外天文学导论[M].北京:北京大学出版社, 1993. HAO Y X, CHEN Z S, ZHOU K P. Instruction of Infrared Astronomy[M]. Beijing:Peking University Press, 1993. (in Chinese).

ZHANG W, CONG M Y, WANG L P. Algorithms for optical weak small targets detection and tracking:review[C]. Proceedings of the International Conference on Neural Networks & Signal Processing, Nanjing, China:IEEE, 2013:14-17.

郭明, 王学伟. 空间目标/星空背景红外建模与仿真[J]. 红外与激光工程, 2010, 39(3):400-404. GUO M, WANG X W. IR modeling and simulation of space target/star and space environment[J]. Infrared and Laser Engineering, 2010, 39(3):400-404. (in Chinese).

刘火平, 孟维平, 宋立维, 等. 红外序列图像中不均匀背景消除新方法[J]. 液晶与显示, 2012, 27(4):539-544. LIUH P, MENG W P, SONG L W, et al. New method for eliminating non-uniformity background of IR images[J]. Chinese Journal of Liquid Crystals and Displays, 2012, 27(4):539-544. (in Chinese).

TARTAKOVSKY A G, KLIGYS S, PETROV A. Adaptive sequential algorithms for detecting targets in a heavy IR clutter[C]. Proceedings of Signal and Data Processing of Small Targets, Denver, CO, USA:SPIE, 1999.

ROSENFIELDA, KAK A C. Digital Picture Processing[M]. 2nd ed. New York:Academy Press, 1982.

常松涛, 孙志远, 张尧禹, 等. 基于点扩散函数的小目标辐射测量[J]. 光学精密工程, 2014, 22(11):2799-2887. CHANG S T, SUN Z Y, ZHANG Y Y, et al. Radiation measurement of small targets based on PSF[J]. Optics and Precision Engineering, 2014, 22(11):2799-2887. (in Chinese)

靳永亮, 王延杰, 刘艳滢, 等. 红外弱小目标的分割预检测[J]. 光学精密工程, 2012, 20(1):171-178. JIN Y L, WANG Y J, LIU Y Y, et al. Pre-detection method for small infrared target[J]. Optics and Precision Engineering, 2012, 20(1):171-178. (in Chinese)

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据