文献类型：期刊文献

英文题名：Plasma Shape Identification and Fitting on the Basis of Image Processing on Tokamak

作者：Xue, Erbing[1];Zhang, Xianmei[1];Luo, Jiarong[2];Yu, Limin[1]

机构：[1]E China Univ Sci & Technol, Sch Sci, Dept Phys, Shanghai 200237, Peoples R China;[2]Donghua Univ, Coll Sci, Dept Phys, Shanghai 201620, Peoples R China

年份：2015

卷号：34

期号：6

起止页码：1348

外文期刊名：JOURNAL OF FUSION ENERGY

收录：;EI(收录号：20152901044353);WOS:【SCI-EXPANDED(收录号:WOS:000363490000019)】；

基金：This work was supported by the Chinese National Natural Science Foundation Contract No 11405058, and the Chinese Ministry of Science and Technology Contract No 2013GB106020.

语种：英文

外文关键词：Image processing; Boundary detection; Fitting; Tracking; Canny algorithm

摘要：To perform experiments and data evaluation in tokamak devices, plasma shape identification is needed for plasma equilibrium control and analysis. A new framework for plasma shape identification is currently being developed in EAST. The foundations of the system are high speed CCD, the remote computer and the algorithms for plasma boundary identification and fitting. In this paper, a new quasi-real time method for plasma shape identification, based on the modified Canny algorithm and carried out in EAST, is proposed. Comparison with the result of EFIT and other diagnostic data, our method has not only been verified the stability and dependability of the detection method, but also revealed it being a reliable tool for operators and physicists to analyze the behavior of plasma. The real time plasma shape identification can be introduced to the plasma control system in the coming campaign of EAST.