Image processing methods for noise reduction in the TJ-II Thomson Scattering diagnostic

被引：3
|
作者：
Dormido-Canto, S. [1 ]
Farias, G. [3 ]
Vega, J. [2 ]
Pastor, I. [2 ]
机构：
[1] UNED, Dept Informat & Automat, Madrid 28040, Spain
[2] Asociac EURATOM CIEMAT Fus, Madrid 28040, Spain
[3] Pontificia Univ Catolica Valparaiso, Valparaiso, Chile
来源：
FUSION ENGINEERING AND DESIGN | 2012年 / 87卷 / 12期
关键词：
Image processing; Thomson Scattering; Segmentation;
D O I：
10.1016/j.fusengdes.2012.04.004
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The Thomsom Scattering diagnostic of the TJ-II stellarator provides temperature and density profiles. The CCD camera acquires images corrupted with noise that, in some cases, can produce unreliable profiles. The main source of noise is the so-called stray-light. In this paper we describe an approach that allows mitigation of the effects that stray-light has on the images: extraction regions with connected-components. In addition, the robustness and effectiveness of the noise reduction technique is validated in two ways: (1) supervised classification and (2) comparison of electron temperature profiles. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：2170 / 2173
页数：4
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