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

页码：2170 / 2173

页数：4

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