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Automatic detection and extraction of ultra-fine bright structure observed with new vacuum solar telescope
Deng LH(邓林华)1,2,3,4; Deng, LH
会议录名称Proceedings of SPIE - EIGHTH INTERNATIONAL CONFERENCE ON GRAPHIC AND IMAGE PROCESSING (ICGIP 2016)
2017
卷号10225
DOI10.1117/12.2267031
产权排序第1完成单位
收录类别EI ; CPCI
会议名称8th International Conference on Graphic and Image Processing (ICGIP)
会议日期2016-10-29
会议地点Tokyo, Japan
关键词Solar Photosphere Ultra-fine Structure Feature Extraction Technique Numerical Analysis Approach
摘要Solar magnetic structures exhibit a wealth of different spatial and temporal scales. Presently, solar magnetic element is believed to be the ultra-fine magnetic structure in the lower solar atmospheric layer, and the diffraction limit of the largest-aperture solar telescope (New Vacuum Solar Telescope; NVST) of China is close to the spatial scale of magnetic element. This implies that modern solar observations have entered the era of high resolution better than 0.2 arc-second. Since the year of 2011, the NVST have successfully established and obtained huge observational data. Moreover, the ultra-fine magnetic structure rooted in the dark inter-graunlar lanes can be easily resolved. Studies on the observational characteristics and physical mechanism of magnetic bright points is one of the most important aspects in the field of solar physics, so it is very important to determine the statistical and physical parameters of magnetic bright points with the feature extraction techniques and numerical analysis approaches. For identifying such ultra-fine magnetic structure, an automatically and effectively detection algorithm, employed the Laplacian transform and the morphological dilation technique, is proposed and examined. Then, the statistical parameters such as the typical diameter, the area distribution, the eccentricity, and the intensity contrast are obtained. And finally, the scientific meaning for investigating the physical parameters of magnetic bright points are discussed, especially for understanding the physical processes of solar magnetic energy transferred from the photosphere to the corona.
项目资助者Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences "Light of West China" Program ; Yunnan Science Foundation of China(2015FB192) ; open research program of Key Laboratory of Solar Activity of Chinese Academy of Sciences(KLSA201503) ; National Natural Science Foundation of China (NSFC)(U1531140, 11503082, 11463003) ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences "Light of West China" Program ; Yunnan Science Foundation of China(2015FB192) ; open research program of Key Laboratory of Solar Activity of Chinese Academy of Sciences(KLSA201503) ; National Natural Science Foundation of China (NSFC)(U1531140, 11503082, 11463003)
语种英语
学科领域天文学
文章类型Proceedings Paper
出版者SPIE-INT SOC OPTICAL ENGINEERING
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号978-1-5106-0951-8; 978-1-5106-0952-5
ISSN号0277-786X
URL查看原文
归档日期2017-10-23
WOS记录号WOS:000399334200007
WOS研究方向Optics ; Imaging Science & Photographic Technology
WOS类目Optics ; Imaging Science & Photographic Technology
关键词[WOS]QUIET SUN ; ACTIVE-REGION ; POINTS ; DYNAMICS ; SIZE
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9956
专题抚仙湖太阳观测站
通讯作者Deng, LH
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650011, China
2.Sate Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing, 100190, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China
4.University of Chinese Academy of Sciences, Beijing, 100049, China
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Deng LH,Deng, LH. Automatic detection and extraction of ultra-fine bright structure observed with new vacuum solar telescope[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2017.
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