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 |
DOI | 10.1088/1674-4527/20/7/103 |
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
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。