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How to co-add images? I. A new iterative method for image reconstruction of dithered observations
Wang, Lei; Li, Guo-Liang
2017-09-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume17Issue:10Pages:14
Corresponding AuthorWang, Lei(leiwang@pmo.ac.cn)
AbstractBy employing the previous Voronoi approach and replacing its nearest neighbor approximation with Drizzle in iterative signal extraction, we develop a fast iterative Drizzle algorithm, named fiDrizzle, to reconstruct the underlying band-limited image from undersampled dithered frames. Compared with the existing iDrizzle, the new algorithm improves rate of convergence and accelerates the computational speed. Moreover, under the same conditions (e.g. the same number of dithers and iterations), fiDrizzle can make a better quality reconstruction than iDrizzle, due to the newly discovered High Sampling caused Decelerating Convergence (HSDC) effect in the iterative signal extraction process. fiDrizzle demonstrates its powerful ability to perform image deconvolution from undersampled dithers.
Keywordtechniques: image processing methods: observational stars: imaging planets and satellites: detection gravitational lensing
DOI10.1088/1674-4527/17/10/100
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000415007500001
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22755
Collection中国科学院紫金山天文台
Corresponding AuthorWang, Lei
AffiliationChinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Lei,Li, Guo-Liang. How to co-add images? I. A new iterative method for image reconstruction of dithered observations[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(10):14.
APA Wang, Lei,&Li, Guo-Liang.(2017).How to co-add images? I. A new iterative method for image reconstruction of dithered observations.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(10),14.
MLA Wang, Lei,et al."How to co-add images? I. A new iterative method for image reconstruction of dithered observations".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.10(2017):14.
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