Lucky imaging method based on wavelet analysis
文献类型:期刊论文
作者 | Fan, Wending3; Li, Binhua2,3; Li, Junwu3; Zhang XL(张西亮)1 |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
出版日期 | 2022-09-10 |
卷号 | 516期号:2页码:2196-2203 |
ISSN号 | 0035-8711 |
关键词 | atmospheric effects methods: data analysis techniques: high angular resolution techniques: image processing |
DOI | 10.1093/mnras/stac2303 |
产权排序 | 第3完成单位 |
文献子类 | Article |
英文摘要 | Lucky imaging is able to reconstruct high-resolution images effectively from astronomical images affected by atmospheric turbulence. Its image reconstruction process can be carried out in the spatial domain or in the Fourier domain. This paper extend the lucky imaging technique to the wavelet domain, and proposes a lucky imaging method based on wavelet analysis. First, the short-exposure astronomical images are decomposed into four subbands by using the bior3.7 wavelet basis. Then, for the low-frequency subbands, the components with higher wavelet coefficients are extracted in a given selection ratio for fusion. For the high-frequency subbands in the horizontal, vertical, and diagonal directions, taking the whole subband as a unit, the subbands with smaller sums of wavelet coefficients are extracted for stacking in a given selection ratio. Finally, an inverse wavelet transform is performed on the four fused subbands to reconstruct the resultant image. Experimental results show that the proposed algorithm can better extract the details hidden in the original short-exposure astronomical images and obtain a higher-resolution image, and that it has a good image restoration effect. |
学科主题 | 计算机科学技术 ; 计算机应用 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
资助项目 | National Natural Science Foundation of China[11673009] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000852389700011 |
资助机构 | National Natural Science Foundation of China[11673009] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25563] |
专题 | 云南天文台_丽江天文观测站(南方基地) |
通讯作者 | Fan, Wending |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory of Applications of Computer Technologies of the Yunnan Province, Kunming University of Science and Technology, Kunming 650500, China; 3.Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China; |
推荐引用方式 GB/T 7714 | Fan, Wending,Li, Binhua,Li, Junwu,et al. Lucky imaging method based on wavelet analysis[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2022,516(2):2196-2203. |
APA | Fan, Wending,Li, Binhua,Li, Junwu,&Zhang XL.(2022).Lucky imaging method based on wavelet analysis.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,516(2),2196-2203. |
MLA | Fan, Wending,et al."Lucky imaging method based on wavelet analysis".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 516.2(2022):2196-2203. |
入库方式: OAI收割
来源:云南天文台
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