HFCAS OpenIR  > 中科院等离子体物理研究所
Optical plasma boundary reconstruction based on least squares for EAST Tokamak
Luo, Hao1; Luo, Zheng-ping2; Xu, Chao1; Jiang, Wei1
2018-09-01
Source PublicationFRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING
ISSN2095-9184
Volume19Issue:9Pages:1124-1134
Corresponding AuthorJiang, Wei(jiangwei@iipc.zju.edu.cn)
AbstractReconstructing the shape and position of plasma is an important issue in Tokamaks. Equilibrium and fitting (EFIT) code is generally used for plasma boundary reconstruction in some Tokamaks. However, this magnetic method still has some inevitable disadvantages. In this paper, we present an optical plasma boundary reconstruction algorithm. This method uses EFIT reconstruction results as the standard to create the optimally optical reconstruction. Traditional edge detection methods cannot extract a clear plasma boundary for reconstruction. Based on global contrast, we propose an edge detection algorithm to extract the plasma boundary in the image plane. Illumination in this method is robust. The extracted boundary and the boundary reconstructed by EFIT are fitted by same-order polynomials and the transformation matrix exists. To acquire this matrix without camera calibration, the extracted plasma boundary is transformed from the image plane to the Tokamak poloidal plane by a mathematical model, which is optimally resolved by using least squares to minimize the error between the optically reconstructed result and the EFIT result. Once the transform matrix is acquired, we can optically reconstruct the plasma boundary with only an arbitrary image captured. The error between the method and EFIT is presented and the experimental results of different polynomial orders are discussed.
KeywordOptical boundary reconstruction Boundary detection Global contrast Least square EAST Tokamak
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1631/FITEE.1700041
WOS KeywordFACING COMPONENTS
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[61375049] ; National Natural Science Foundation of China[61473253]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Information Systems ; Computer Science, Software Engineering ; Engineering, Electrical & Electronic
WOS IDWOS:000450515200006
PublisherZHEJIANG UNIV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/34076
Collection中科院等离子体物理研究所
Corresponding AuthorJiang, Wei
Affiliation1.Zhejiang Univ, Inst Cyber Syst & Control, Hangzhou 310027, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Luo, Hao,Luo, Zheng-ping,Xu, Chao,et al. Optical plasma boundary reconstruction based on least squares for EAST Tokamak[J]. FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING,2018,19(9):1124-1134.
APA Luo, Hao,Luo, Zheng-ping,Xu, Chao,&Jiang, Wei.(2018).Optical plasma boundary reconstruction based on least squares for EAST Tokamak.FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING,19(9),1124-1134.
MLA Luo, Hao,et al."Optical plasma boundary reconstruction based on least squares for EAST Tokamak".FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING 19.9(2018):1124-1134.
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