Automatic Detection of Sunspots on Full-disk Solar Images Using the Simulated Annealing Genetic Method
文献类型：期刊论文
| 作者 | Yang, Yunfei1,2; Yang, Hongjuan1; Bai, Xianyong2; Zhou, Huituan3; Feng, Song1; Liang, Bo1 |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 130期号:992页码:14 |
| 关键词 | methods: data analysis Sun: activity sunspots techniques: image processing |
| ISSN号 | 0004-6280 |
| DOI | 10.1088/1538-3873/aadbfa |
| 英文摘要 | Sunspots with strong magnetic fields are the most important manifestations of solar activity, appearing as dark features in the photosphere observed in continuum images. We proposed an artificial intelligence technology called the simulated annealing genetic (SAG) method, which combined the genetic algorithm and simulated annealing algorithm to self-adaptively derive dual thresholds for detecting the umbra and penumbra of sunspots simultaneously. Full-disk continuum intensity images obtained from Solar Dynamics Observatory/Helioseismic Magnetic Imager (HMI) at a cadence of four hours from 2010 May to 2016 December were used. The detection results showed that the dual thresholds derived by the SAG method have outstanding performance in segmenting the umbra and penumbra from the photosphere with a satisfactory robustness efficiently. The boundaries of the umbra and penumbra were finely delineated, even for sunspots at the extreme solar limb. The total sunspot areas, umbral areas, and penumbral areas match very well with the data reported from HMI Debrecen Data (HMIDD), with the correlation coefficients reaching 0.99, 0.99, and 0.95, respectively. The mean ratios of umbra to sunspot areas per year ranged from 0.159 to 0.233. The ratios decreased with an increase in solar activity, which implies that the ratio was related to the solar activity level. |
| WOS关键词 | ACTIVE REGIONS ; MAGNETIC RECONNECTION ; AREAS ; CONTRAST ; CATALOGS ; FIELDS |
| 资助项目 | National Natural Science Foundation of China[11763004] ; National Natural Science Foundation of China[11573012] ; National Natural Science Foundation of China[11303011] ; National Natural Science Foundation of China[11463003] ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences[KLSA201815] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000444291700001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/23170]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Yang, Yunfei |
| 作者单位 | 1.Kunming Univ Sci & Technol, Yunnan Key Lab Comp Technol Applicat, Fac Informat Engn & Automat, Kunming 650500, Yunnan, Peoples R China 2.Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China 3.China Telecom Corp Ltd, Yunnan Branch, Kunming 650200, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yunfei,Yang, Hongjuan,Bai, Xianyong,et al. Automatic Detection of Sunspots on Full-disk Solar Images Using the Simulated Annealing Genetic Method[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2018,130(992):14. |
| APA | Yang, Yunfei,Yang, Hongjuan,Bai, Xianyong,Zhou, Huituan,Feng, Song,&Liang, Bo.(2018).Automatic Detection of Sunspots on Full-disk Solar Images Using the Simulated Annealing Genetic Method.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,130(992),14. |
| MLA | Yang, Yunfei,et al."Automatic Detection of Sunspots on Full-disk Solar Images Using the Simulated Annealing Genetic Method".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 130.992(2018):14. |
入库方式： OAI收割
来源：国家天文台
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