FLAT-FIELDING OF SOLAR H alpha OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION
文献类型：期刊论文
| 作者 | Xu, Gao-Gui1; Zheng, Sheng1; Lin, Gang-Hua2 ; Wang, Xiao-Fan2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2016-08-20 |
| 卷号 | 827期号:2 |
| 关键词 | astroparticle physics methods: observational Sun: photosphere techniques: image processing |
| 英文摘要 | The flat-field CCD calibration method of Kuhn et al. (KLL) is an efficient method for flat-fielding. However, since it depends on the minimum of the sum of squares error (SSE), its solution is sensitive to noise, especially non-Gaussian noise. In this paper, a new algorithm is proposed to determine the flat field. The idea is to change the criterion of gain estimate from SSE to the maximum correntropy. The result of a test on simulated data demonstrates that our method has a higher accuracy and a faster convergence than KLL's and Chae's. It has been found that the method effectively suppresses noise, especially in the case of typical non-Gaussian noise. And the computing time of our algorithm is the shortest. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384001600049 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6886]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.China Three Gorges Univ, Coll Sci, Yichang 443002, Hubei, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Gao-Gui,Zheng, Sheng,Lin, Gang-Hua,et al. FLAT-FIELDING OF SOLAR H alpha OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION[J]. ASTROPHYSICAL JOURNAL,2016,827(2). |
| APA | Xu, Gao-Gui,Zheng, Sheng,Lin, Gang-Hua,&Wang, Xiao-Fan.(2016).FLAT-FIELDING OF SOLAR H alpha OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION.ASTROPHYSICAL JOURNAL,827(2). |
| MLA | Xu, Gao-Gui,et al."FLAT-FIELDING OF SOLAR H alpha OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION".ASTROPHYSICAL JOURNAL 827.2(2016). |
入库方式： OAI收割
来源：国家天文台
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