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

doi:10.1007/s10894-020-00251-8

	Techniques Used for Registration and Reconditioning of Infrared Images of the Experimental Advanced Superconducting Tokamak (EAST) Divertor
	Yang, Zhendong 3,4; Wang, Yue 4; Zhang, Chengwen 4; He, Pei 4; Shu, Shuangbao 2; Zhang, Jiayuan 1; Tang, Bing 3
刊名	JOURNAL OF FUSION ENERGY
	2020-08-10
关键词	IR image SIFT descriptors K-means clustering Projective transformation
ISSN号	0164-0313
DOI	10.1007/s10894-020-00251-8
通讯作者	Yang, Zhendong(dongyz@tlu.edu.cn)
英文摘要	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.
资助项目	National Natural Science Foundation of China[11705128] ; National Key Research and Development Program of China[2017YEF0301104]
WOS关键词	THERMOGRAPHY
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000558155600001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[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.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Peoples R China 3.Anhui Tongfeng Elect Co Ltd, Tongling 244000, Peoples R China 4.Tongling Univ, 1335 Cuihu 4th Rd, Tongling 244000, Anhui, 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).