首页 > 论文 > 光学学报 > 40卷 > 5期(pp:0528002--1)

一种推扫型敏捷遥感卫星星上自动调焦技术

An On-Board Autofocusing Method for Scanning Agile Remote Sensing Satellite

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

调焦评价函数的性能是影响推扫型遥感卫星星上自动调焦的重要因素。结合敏捷遥感卫星的成像特点和星上处理单元的计算特性,设计了一种敏捷遥感卫星自动调焦策略,提出了一种改进的灰度梯度函数以作为调焦评价函数。该方法在传统灰度梯度函数基础上,结合图像边缘信息与离焦状态的关系,将灰度标准差作为边缘阈值,提取了有效边缘信息并计算图像清晰度。研究结果表明,所提方法具备高灵敏度、强单峰性和良好的时效性,对调焦成像时的场景变化和噪声具有很高的鲁棒性,相比其他常用灰度域调焦评价函数具有明显优势。

Abstract

The performance of focusing evaluation function is an important factor that affects the on-board autofocusing of a scanning remote sensing satellite. Based on the imaging properties of the agile remote sensing satellite and computing characteristics of the on-board processing unit, an autofocusing strategy of the agile remote sensing satellite is designed, and an improved gray gradient function is proposed as the focusing evaluation function. Based on the traditional gray gradient function and the relationship between image edge information and defocus state, the proposed method takes gray standard deviation as the edge threshold to extract the effective edge information and calculate the image definition. The study results show that the proposed method has high sensitivity, strong unimodality and good timeliness, and is robust to the scene change and noise in the process of focusing imaging. Compared with other commonly used gray scale focusing evaluation function, the proposed algorithm shows obvious advantages.

中国激光微信矩阵
补充资料

中图分类号:TP751

DOI:10.3788/AOS202040.0528002

所属栏目:遥感与传感器

基金项目:国家重点研发计划、国家重点研发计划地球观测与导航重点专项、国家自然科学基金;

收稿日期:2019-10-09

修改稿日期:2019-11-27

网络出版日期:2020-03-01

作者单位    点击查看

谭伟:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
齐文雯:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
何红艳:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
邢坤:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094

联系人作者:谭伟(blacktanphay@126.com)

备注:国家重点研发计划、国家重点研发计划地球观测与导航重点专项、国家自然科学基金;

【1】Chen S P. Some issues about space remote sensing [J]. Spacecraft Recovery & Remote Sensing. 2011, 32(3): 1-8.
陈世平. 关于航天遥感的若干问题 [J]. 航天返回与遥感. 2011, 32(3): 1-8.

【2】Leger D, Viallefont F, Emmanuel H, et al. In-flight refocusing and MTF assessment of SPOT5 HRG and HRS cameras [J]. Proceedings of SPIE. 2003, 4881: 224-231.

【3】Begni G, Leger D, Dinguirard M. An in-flight refocusing method for the SPOT HRV cameras [J]. Photogrammetric Engineering and Remote Sensing. 1984, 50(12): 1697-1705.

【4】Daigo H, Yamauchi T, Watanabe A, et al. Detection of actual focus variations by focus automatic measurement [J]. Proceedings of SPIE. 2003, 5040: 861-870.

【5】Guo C Z, Ma Z L, Guo X, et al. Fast auto-focusing search algorithm for a high-speed and high-resolution camera based on the image histogram feature function [J]. Applied Optics. 2018, 57(34): F44-F49.

【6】Zhao H, Bao G T, Tao W. Experimental research and analysis of automatic focusing function for imaging measurement [J]. Optics and Precision Engineering. 2004, 12(5): 531-536.
赵辉, 鲍歌堂, 陶卫. 图像测量中自动调焦函数的实验研究与分析 [J]. 光学精密工程. 2004, 12(5): 531-536.

【7】Tan W, Yang B X, He H Y. A new definition evaluation method for remote sensing images of satellite [J]. Chinese Space Science and Technology. 2016, 36(2): 50-57.
谭伟, 杨秉新, 何红艳. 一种新的遥感影像清晰度评价方法 [J]. 中国空间科学技术. 2016, 36(2): 50-57.

【8】Ni J, Yuan J H, Wu Q Z. Identification for optical image definition based on edge feature [J]. Chinese Journal of Lasers. 2009, 36(1): 172-176.
倪军, 袁家虎, 吴钦章. 基于边缘特征的光学图像清晰度判定 [J]. 中国激光. 2009, 36(1): 172-176.

【9】Ikeda O. Optical array imaging system with improved focusing function [J]. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. 1993, 76(12): 2108-2113.

【10】Zhang X W, Dai J, Liu F Q. Research on working mode of remote sensing satellite with agile attitude control [J]. Spacecraft Engineering. 2011, 20(4): 32-38.
张新伟, 戴君, 刘付强. 敏捷遥感卫星工作模式研究 [J]. 航天器工程. 2011, 20(4): 32-38.

【11】Mo C H, Liu B, Ding L, et al. A gradient threshold auto-focus algorithm [J]. Infrared and Laser Engineering. 2014, 43(1): 323-327.
莫春红, 刘波, 丁璐, 等. 一种梯度阈值自动调焦算法 [J]. 红外与激光工程. 2014, 43(1): 323-327.

【12】Li Q, Feng H J, Xu Z H. Auto-focus apparatus with digital signal processor [J]. Proceedings of SPIE. 2005, 5633: 416-423.

【13】Introduction to Fourier optics[M]. Qin K C: Liu P S, Chen J B, et al., Transl. Beijing: Publishing House of Electronics Industry Press, 2006, 114-116.
Goodman J W, Goodman J W. 傅里叶光学导论[M]. 秦克诚: 刘培森, 陈家璧, 等, 译. 北京: 电子工业出版社, 2006, 114-116.

【14】Jarvis R A. Focus optimization criteria for computer image processing [J]. Microscope. 1976, 24(2): 163-180.

【15】Chern N N K, Neow P A, Ang M H. Practical issues in pixel-based autofocusing for machine vision . [C]//Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No. 01CH37164), May 21-26, 2001, Seoul, Korea. New York: IEEE. 2001, 2791-2796.

【16】Jin S, Cho J, Kwon K H, et al. A dedicated hardware architecture for real-time auto-focusing using an FPGA [J]. Machine Vision and Applications. 2010, 21(5): 727-734.

【17】Zhu K F, Jiang W, Wang D F, et al. New kind of clarity-evaluation-function of image [J]. Infrared and Laser Engineering. 2005, 34(4): 464-468.
朱孔凤, 姜威, 王端芳, 等. 一种新的图像清晰度评价函数 [J]. 红外与激光工程. 2005, 34(4): 464-468.

【18】Zhang L X, Sun H Y, Guo H C, et al. Auto focusing algorithm based on largest gray gradient summation [J]. Acta Photonica Sinica. 2013, 42(5): 605-610.
张来线, 孙华燕, 郭惠超, 等. 基于图像灰度梯度最大值累加的自动调焦算法 [J]. 光子学报. 2013, 42(5): 605-610.

【19】Fienup J R. Detecting moving targets in SAR imagery by focusing [J]. IEEE Transactions on Aerospace and Electronic Systems. 2001, 37(3): 794-809.

【20】Qu Y F, Pu Z B, Zhao H J, et al. Influence factor analysis of sensitivity of focus criteria function [J]. Acta Optica Sinica. 2005, 25(7): 902-906.
屈玉福, 浦昭邦, 赵慧洁, 等. 调焦评价函数灵敏度的影响因素分析 [J]. 光学学报. 2005, 25(7): 902-906.

引用该论文

Tan Wei,Qi Wenwen,He Hongyan,Xing Kun. An On-Board Autofocusing Method for Scanning Agile Remote Sensing Satellite[J]. Acta Optica Sinica, 2020, 40(5): 0528002

谭伟,齐文雯,何红艳,邢坤. 一种推扫型敏捷遥感卫星星上自动调焦技术[J]. 光学学报, 2020, 40(5): 0528002

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF