Automatic Recognition of Sunspots in HSOS Full-Disk Solar Images
文献类型：期刊论文
| 作者 | Zhao, Cui ; Lin, GangHua; Deng, YuanYong; Yang, Xiao
|
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
 |
| 出版日期 | 2016-05-11 |
| 卷号 | 33 |
| 关键词 | activity data analysis image processing sunspot |
| 英文摘要 | A procedure is introduced to recognise sunspots automatically in solar full-disk photosphere images obtained from Huairou Solar Observing Station, National Astronomical Observatories of China. The images are first pre-processed through Gaussian algorithm. Sunspots are then recognised by the morphological Bot-hat operation and Otsu threshold. Wrong selection of sunspots is eliminated by a criterion of sunspot properties. Besides, in order to calculate the sunspots areas and the solar centre, the solar limb is extracted by a procedure using morphological closing and erosion operations and setting an adaptive threshold. Results of sunspot recognition reveal that the number of the sunspots detected by our procedure has a quite good agreement with the manual method. The sunspot recognition rate is 95% and error rate is 1.2%. The sunspot areas calculated by our method have high correlation (95%) with the area data from the United States Air Force/National Oceanic and Atmospheric Administration (USAF/NOAA). |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376298300001 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5385]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Cui,Lin, GangHua,Deng, YuanYong,et al. Automatic Recognition of Sunspots in HSOS Full-Disk Solar Images[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,2016,33. |
| APA | Zhao, Cui,Lin, GangHua,Deng, YuanYong,&Yang, Xiao.(2016).Automatic Recognition of Sunspots in HSOS Full-Disk Solar Images.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,33. |
| MLA | Zhao, Cui,et al."Automatic Recognition of Sunspots in HSOS Full-Disk Solar Images".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA 33(2016). |
入库方式： OAI收割
来源：国家天文台
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