Detection and Segmentation for Chromosphere Bright Points by CLPNet
文献类型：期刊论文
| 作者 | Zhang, Xichen1; Yang, Yunfei1; Zhang, Xiaoli1; Feng, Song1; Dai, Wei1; Liang, Bo1; Xiong JP(熊建萍)2 |
| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2026-03-24 |
| 卷号 | 301期号:3 |
| 关键词 | Chromosphere bright points CLPNet Object segmentation Feature statistics |
| ISSN号 | 0038-0938 |
| DOI | 10.1007/s11207-026-02638-w |
| 产权排序 | 第2完成单位 |
| 文献子类 | Article |
| 英文摘要 | Chromosphere bright points (CBPs) are small and bright magnetic structures, which are the reflection of the cross sections of the magnetic-flux tubes crossing the chromosphere. Accurate detection and segmentation of CBPs enable large-scale data acquisition and then feature extraction. In this paper, we propose the CLPNet model based on the LPNet architecture. By restructuring the global feature extractor and patch network module, we improve the segmentation accuracy and small-object detection. The Ca II H image-series of the quiet regions from the Solar Optical Telescope (SOT) on board Hinode are used to construct a training set containing of 448 images and approximately 4000 CBPs were constructed, and two test sets, which contain 40 images including 600 CBPs and 50 images including 700 CBPs respectively. The average precision, recall, F1-score of test sets 1 and 2 are 0.846, 0.847 and 0.846, respectively. For the segmentation effect at the pixel level, the average pixel precision, pixel recall and pixel F1-score and mIoU value of test sets 1 and 2 are 0.722, 0.766, 0.742 and 0.640, respectively. This indicates that CLPNet demonstrates a commendable level of efficiency and accuracy in both detection and segmentation tasks.The compactness is used for classifying the morphology of CBPs. Specifically, CBPs exhibiting compactness less than or equal to 1.13 are regarded as point-like CBPs, which could correspond to a single slender flux tube. Otherwise, CBPs are regarded as non-point-like CBPs, which could correspond to the interaction of several slender flux tubes. There are differences in features between point-like and non-point-like CBPs. The mean compactnesses are 1.06 +/- 0.04 and 1.20 +/- 0.07, respectively. The mean equivalent diameters are 201 +/- 50 and 279 +/- 60 km, respectively. The mean values of the maximum intensity contrast are 1.14 +/- 0.47 and 1.54 +/- 0.66 < IQS_Ca >\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\langle I_{\text{QS}\_\text{Ca}} \rangle $\end{document}, respectively. The mean values of eccentricity are 0.60 +/- 0.14 and 0.78 +/- 0.11, respectively. This research provides a more precise methodology for the comprehensive study of CBPs, offering novel insights into the physical phenomena occurring on the chromosphere and then establishing a quantitative foundation for three-dimensional modeling of magnetic-flux tubes and investigations into coronal heating mechanisms. |
| 学科主题 | 天文学 ; 太阳与太阳系 |
| URL标识 | 查看原文 |
| 出版地 | VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS |
| WOS关键词 | MAGNETIC ELEMENTS ; SIZE ; TRACKING ; FIELDS |
| 资助项目 | National Natural Science Foundation of China[Nos. 11763004] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001721861700001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China[Nos. 11763004] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/29060]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 通讯作者 | Yang, Yunfei |
| 作者单位 | 1.Faculty of Information Engineering and Automation/Yunnan Key Laboratory of Computer Technology Application, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650051, China |
| 推荐引用方式 GB/T 7714 | Zhang, Xichen,Yang, Yunfei,Zhang, Xiaoli,et al. Detection and Segmentation for Chromosphere Bright Points by CLPNet[J]. SOLAR PHYSICS,2026,301(3). |
| APA | Zhang, Xichen.,Yang, Yunfei.,Zhang, Xiaoli.,Feng, Song.,Dai, Wei.,...&熊建萍.(2026).Detection and Segmentation for Chromosphere Bright Points by CLPNet.SOLAR PHYSICS,301(3). |
| MLA | Zhang, Xichen,et al."Detection and Segmentation for Chromosphere Bright Points by CLPNet".SOLAR PHYSICS 301.3(2026). |
入库方式： OAI收割
来源：云南天文台
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