Vignetting correction for a single star-sky observation image

doi:10.1364/ao.58.004337

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	Vignetting correction for a single star-sky observation image
	D.Zhang; Q.Y.Yang; T.Chen
	2019
发表期刊	Applied Optics
ISSN	1559-128X
卷号	58 期号:16 页码:4337-4344
摘要	We propose a method for robustly determining the vignetting function given only a single star-sky image taken by a large-aperture optical system. The actual large-aperture optical system is complex and difficult to model. Thus, the proposed method is designed to determine vignetting distortion of star-sky images without knowing the parameters or model of the optical system. This method is a model-free method by applying a polynomial regular term to the expectation-maximization algorithm to correct vignetting distortion. Unlike prior approaches to single-image vignetting correction, our proposed method, which does not rely on the optical model, gives more accurate results. The effectiveness of this technique was verified using real star-sky images captured with a large-aperture optical system (2-m telescope). (c) 2019 Optical Society of America
关键词	Optics
DOI	10.1364/ao.58.004337
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/62821
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	D.Zhang,Q.Y.Yang,T.Chen. Vignetting correction for a single star-sky observation image[J]. Applied Optics,2019,58(16):4337-4344.
APA	D.Zhang,Q.Y.Yang,&T.Chen.(2019).Vignetting correction for a single star-sky observation image.Applied Optics,58(16),4337-4344.
MLA	D.Zhang,et al."Vignetting correction for a single star-sky observation image".Applied Optics 58.16(2019):4337-4344.

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