Techniques Used for Registration and Reconditioning of Infrared Images of the Experimental Advanced Superconducting Tokamak (EAST) Divertor

doi:10.1007/s10894-020-00251-8

HFCAS OpenIR

	Techniques Used for Registration and Reconditioning of Infrared Images of the Experimental Advanced Superconducting Tokamak (EAST) Divertor
	Yang, Zhendong 1,2; Wang, Yue 1; Zhang, Chengwen 1; He, Pei 1; Shu, Shuangbao 3; Zhang, Jiayuan 4; Tang, Bing 2
	2020-08-10
发表期刊	JOURNAL OF FUSION ENERGY
ISSN	0164-0313
通讯作者	Yang, Zhendong(dongyz@tlu.edu.cn)
摘要	The heat flux loaded on the divertor is an important issue in tokamaks. At present, the heat flux on the divertor is calculated from the divertor surface temperature measured by the infrared (IR) camera. However, the movement of the field of view and the geometrical distortion are present in the IR images. Small movements occur with machine shaking during normal discharges, while large ones often arise at disruptions or the rapid variations in the magnetic field. As a result, it is difficult to obtain the real temperature evolution on the specified divertor surface from the IR images. In this paper, the scale invariant feature transform descriptors andK-means clustering have been applied for vibration correction on the IR videos in EAST. The projective transformation is used to correct the geometrical distortion in the IR images. The experimental results show that the proposed methods are efficient in compensating for image translations brought about by vibrations and for perspective distortions in the images, thereby allowing assignment of the IR emission-derived surface temperatures to the correct locations on the divertor surface.
关键词	IR image SIFT descriptors K-means clustering Projective transformation
DOI	10.1007/s10894-020-00251-8
关键词[WOS]	THERMOGRAPHY
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11705128] ; National Key Research and Development Program of China[2017YEF0301104]
项目资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China
WOS研究方向	Nuclear Science & Technology
WOS类目	Nuclear Science & Technology
WOS记录号	WOS:000558155600001
出版者	SPRINGER
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/70770
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Zhendong
作者单位	1.Tongling Univ, 1335 Cuihu 4th Rd, Tongling 244000, Anhui, Peoples R China 2.Anhui Tongfeng Elect Co Ltd, Tongling 244000, Peoples R China 3.Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Peoples R China 4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Yang, Zhendong,Wang, Yue,Zhang, Chengwen,et al. Techniques Used for Registration and Reconditioning of Infrared Images of the Experimental Advanced Superconducting Tokamak (EAST) Divertor[J]. JOURNAL OF FUSION ENERGY,2020.
APA	Yang, Zhendong.,Wang, Yue.,Zhang, Chengwen.,He, Pei.,Shu, Shuangbao.,...&Tang, Bing.(2020).Techniques Used for Registration and Reconditioning of Infrared Images of the Experimental Advanced Superconducting Tokamak (EAST) Divertor.JOURNAL OF FUSION ENERGY.
MLA	Yang, Zhendong,et al."Techniques Used for Registration and Reconditioning of Infrared Images of the Experimental Advanced Superconducting Tokamak (EAST) Divertor".JOURNAL OF FUSION ENERGY (2020).