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Mapping Ground-based Coronagraphic Images to Helioprojective-Cartesian Coordinate System by Image Registration

文献类型：期刊论文

作者Sha, Feiyang2; Liu, Yu2; Xia, Lidong3; Chen, Yao2,3; Zhou, Qing2; Chen, Yangrui2; Zhong, Chuyu2; Zhang XF(张雪飞)4; Song TF(宋腾飞)4; Sun, Mingzhe3
刊名ASTROPHYSICAL JOURNAL
出版日期2025-09-01
卷号990期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/adf05e
产权排序第3完成单位
文献子类Article
英文摘要A few ground-based solar coronagraphs have been installed in western China for observing the low-layer corona in recent years. However, determining the helioprojective coordinates for the coronagraphic data with high precision is an important but challenging step for further research with other multiwavelength data. In this paper, we propose an automatic coronal image registration method that combines local statistical correlation and feature point matching to achieve accurate registration between ground-based coronal green-line images and space-based 211 & Aring; images. Then, the accurate field of view information of the coronal green-line images can be derived, allowing the images to be mapped to the helioprojective Cartesian coordinates with an accuracy of no less than 0.'' 1 . This method has been extensively validated using 100 days of coronal data spanning an 11 yr period, demonstrating its broad applicability to ground-based coronagraphs equipped with green-line observations. It significantly enhances the scientific value of ground-based coronal data, enabling comprehensive studies of coronal transient activities and facilitating the joint analysis of data from multiple instruments. Additionally, it holds potential for future applications in improving the pointing accuracy of coronagraphs.
学科主题天文学 ; 太阳与太阳系 ; 天体测量学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词CORONAL MASS EJECTIONS ; CALIBRATION ; LINE
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809; National Science and Technology Infrastructure of China[NSFC 12373063]; National Science and Technology Infrastructure of China[11533009]; National Science and Technology Infrastructure of China[12173086]; National Science and Technology Infrastructure of China[12163004]; National Natural Science Foundation of China[2025ZNSFSC0877]; Sichuan Science and Technology Program[2682025CX031]; Fundamental Research Funds for the Central Universities
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001563000900001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; National Science and Technology Infrastructure of China[NSFC 12373063, 11533009, 12173086, 12163004] ; National Natural Science Foundation of China[2025ZNSFSC0877] ; Sichuan Science and Technology Program[2682025CX031] ; Fundamental Research Funds for the Central Universities
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28562]  
专题云南天文台_人教处
通讯作者Liu, Yu
作者单位1.Department of Physics, Bamidele Olumilua University of Education, Science and Technology, Ikere-Ekiti 361251, Nigeria
2.School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 611756, People’s Republic of China; lyu@swjtu.edu.cn;
3.Institute of Space Sciences, Shandong University, Weihai 264209, People’s Republic of China;
4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China;
推荐引用方式
GB/T 7714		 Sha, Feiyang,Liu, Yu,Xia, Lidong,et al. Mapping Ground-based Coronagraphic Images to Helioprojective-Cartesian Coordinate System by Image Registration[J]. ASTROPHYSICAL JOURNAL,2025,990(1).
APA Sha, Feiyang.,Liu, Yu.,Xia, Lidong.,Chen, Yao.,Zhou, Qing.,...&李小波.(2025).Mapping Ground-based Coronagraphic Images to Helioprojective-Cartesian Coordinate System by Image Registration.ASTROPHYSICAL JOURNAL,990(1).
MLA Sha, Feiyang,et al."Mapping Ground-based Coronagraphic Images to Helioprojective-Cartesian Coordinate System by Image Registration".ASTROPHYSICAL JOURNAL 990.1(2025).

入库方式： OAI收割

来源：云南天文台

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