Stray light nonuniform background correction for a wide-field surveillance system

doi:10.1364/ao.404685

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Stray light nonuniform background correction for a wide-field surveillance system
	Z. M. Xu,D. Liu,C. X. Yan and C. H. Hu
刊名	Applied Optics
	2020
卷号	59 期号:34 页码:10719-10728
ISSN号	1559-128X
DOI	10.1364/ao.404685
英文摘要	Wide field and a long exposure time can effectively improve the ability of a space surveillance telescope to detect faint space targets. However, such systems are very susceptible to stray light. A stray light nonuniform background will cause great interference to subsequent target recognition, resulting in a large number of false alarms. This study presents an accurate and robust correction algorithm, called the improved new top-hat transformation (INTHT), for a stray light nonuniform background. First, we analyzed the formation mechanism and influence of the stray light nonuniform background. Then, to retrieve the lost targets, the size relationship of the two different, but related, structural operators is changed so the sizes of two structural operators are not equal. Finally, before comparing to the original image to take the minimum value, we added an expansion operation to restore the background size transformation caused by the different sizes of the structural operators in the previous step. This will ensure that there is no residual stray light nonuniform background. We believe, to the best of our knowledge, that the experimental results for the real captured image datasets demonstrate that, compared to other algorithms, the proposed INTHT algorithm has a higher accuracy and effectiveness in correcting a stray light nonuniform background. (C) 2020 Optical Society of America
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64908]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. M. Xu,D. Liu,C. X. Yan and C. H. Hu. Stray light nonuniform background correction for a wide-field surveillance system[J]. Applied Optics,2020,59(34):10719-10728.
APA	Z. M. Xu,D. Liu,C. X. Yan and C. H. Hu.(2020).Stray light nonuniform background correction for a wide-field surveillance system.Applied Optics,59(34),10719-10728.
MLA	Z. M. Xu,D. Liu,C. X. Yan and C. H. Hu."Stray light nonuniform background correction for a wide-field surveillance system".Applied Optics 59.34(2020):10719-10728.