中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A coarse-to-fine strategy for the registration of the multi-wavelength high-resolution solar images

文献类型:期刊论文

作者Wang, Rui1; Xu Z(徐稚)2
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2020-07-01
卷号20期号:7页码:10
关键词instrumentation detectors methods observational techniques image processing Sun general
ISSN号1674-4527
DOI10.1088/1674-4527/20/7/103
产权排序第2完成单位
文献子类Article
英文摘要

The registration of multi-wavelength high-resolution solar images is an important task in the research of solar physics. This paper proposed a coarse-to-fine strategy to realize the accurate registration of high-resolution photospheric images and chromospheric images observed by the New Vacuum Solar Telescope (NVST) whose field-of-view is about 2 ' similar to 3 ', and the spatial resolution can reach 0.1 '' after image reconstruction. In this strategy, the full-disk solar images with relatively lower resolution taken by other space- or ground-based telescopes are taken as transition images, and the Fourier-Merlin transform, Template matching and a local statistical information based algorithm are used in combination. After registration, the geometric transformation between multi-wavelength images of NVST are corrected at the level of sub-arcseconds, including the rotation, scaling and translation relations. Two sets of data observed in active regions (i.e., the NOAA 11982 and the NOAA 12673) are used to illustrate our method step by step. The result shows that the registration accuracy can reach less than 1 ''. Moreover, this work also has facilitated the combination of high-resolution observations of NVST with the continuum, ultraviolet passbands and magnetic field observations of the Solar Dynamic Observation (SDO), which is highly beneficial to the multi-instrument joint measurement of solar activities.

学科主题天文学 ; 太阳与太阳系 ; 太阳与太阳系其他学科 ; 计算机科学技术
URL标识查看原文
出版地20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
资助项目National Natural Science Foundation of China (NSFC)[11873091] ; National Natural Science Foundation of China (NSFC)[61902302] ; Basic Research on Fund Projects in Yunnan Province[2019FA001] ; PhD Scientific Research Start-up Foundation of Xi'an PolytechnicUniversity[107020389]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000554992400001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构National Natural Science Foundation of China (NSFC)[11873091, 61902302] ; Basic Research on Fund Projects in Yunnan Province[2019FA001] ; PhD Scientific Research Start-up Foundation of Xi'an PolytechnicUniversity[107020389]
源URL[http://ir.ynao.ac.cn/handle/114a53/23623]  
专题云南天文台_抚仙湖太阳观测站
通讯作者Xu Z(徐稚)
作者单位1.School of Electronics and Information, Xi'an Polytechnic University, Xi'an 710048, China
2.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式
GB/T 7714
Wang, Rui,Xu Z. A coarse-to-fine strategy for the registration of the multi-wavelength high-resolution solar images[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(7):10.
APA Wang, Rui,&Xu Z.(2020).A coarse-to-fine strategy for the registration of the multi-wavelength high-resolution solar images.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(7),10.
MLA Wang, Rui,et al."A coarse-to-fine strategy for the registration of the multi-wavelength high-resolution solar images".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.7(2020):10.

入库方式: OAI收割

来源:云南天文台

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