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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
Source PublicationProceedings of SPIE - The International Society for Optical Engineering - EIGHTH INTERNATIONAL CONFERENCE ON GRAPHIC AND IMAGE PROCESSING (ICGIP 2016)
2017
Volume10225
DOI10.1117/12.2267031
Author of SourcePham, TD; Vozenilek, V; Zeng, Z
Contribution Rank第1完成单位
Indexed ByEI ; CPCI
Conference Name8th International Conference on Graphic and Image Processing (ICGIP)
Conference Date2016-10-29
Conference PlaceTokyo, Japan
Conference SponsorInt Assoc Comp Sci & Informat Technol; Univ Aizu; Wuhan Univ; Linkoping Univ; Palacky Univ
KeywordSolar Photosphere Ultra-fine Structure Feature Extraction Technique Numerical Analysis Approach
Abstract

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.

Funding ProjectSpecialized 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] ; National Natural Science Foundation of China (NSFC)[11503082] ; National Natural Science Foundation of China (NSFC)[11463003]
Funding OrganizationSpecialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences "Light of West China" Program ; Yunnan Science Foundation of China ; open research program of Key Laboratory of Solar Activity of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC)
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Publication Place1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN978-1-5106-0951-8; 978-1-5106-0952-5
ISSN0277-786X
URL查看原文
Archive Date2017-10-23
WOS IDWOS:000399334200007
WOS Research AreaOptics ; Imaging Science & Photographic Technology
WOS SubjectOptics ; Imaging Science & Photographic Technology
WOS KeywordQuiet Sun ; Active-region ; Points ; Dynamics ; Size
EI Accession Number20171103445206
EI KeywordsImage Processing
EI Classification Number443.1atmospheric Properties - 701.2magnetism: Basic Concepts And Phenomena - 802.3chemical Operations - 921.6numerical Methods
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9956
Collection抚仙湖太阳观测站
Corresponding AuthorDeng LH(邓林华)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Deng LH. Automatic detection and extraction of ultra-fine bright structure observed with new vacuum solar telescope[C]//Pham, TD; Vozenilek, V; Zeng, Z. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2017.
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