Development of image fusion methodology using discrete wavelet transform for eddy current images

Sasi Balakrishnan; Matteo Cacciola; Lalita Udpa; Bhagi Purnachandra Rao; Tammana Jayakumar; Baldev Raj

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Development of image fusion methodology using discrete wavelet transform for eddy current images

机译：利用离散小波变换对涡流图像进行图像融合的方法开发

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In this paper, a method based on the discrete wavelet transform is proposed for eddy current image fusion. This method mainly involves two steps: selection of the proper wavelet filters and level of decomposition using formulated parameter, and selection of the proper fusion criterion in wavelet sub-band. The main aspect of the proposed method concentrates on elimination of noise while retaining defect information. This method fuses the eddy current images at two different frequencies from stainless steel cladding tube, in order to take the advantage of deep lying information effectively. The fusion results show that the selection of wavelet and fusion rule reduces the ambiguity and enhances the reliability of defect detection in both visual and qualitative evaluation.

机译：提出了一种基于离散小波变换的涡流图像融合方法。该方法主要包括两个步骤：选择适当的小波滤波器和使用公式化参数进行分解的级别，以及选择小波子带中的适当融合准则。所提出方法的主要方面集中于消除噪声同时保留缺陷信息。该方法融合了来自不锈钢包层管的两个不同频率的涡流图像，以便有效利用深层信息的优势。融合结果表明，小波和融合规则的选择减少了模糊性，提高了视觉和定性评估中缺陷检测的可靠性。

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来源
《NDT & E international》 |2012年第2012期|p.51-57|共7页
作者
Sasi Balakrishnan; Matteo Cacciola; Lalita Udpa; Bhagi Purnachandra Rao; Tammana Jayakumar; Baldev Raj;
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作者单位

Non-Destructive Evaluation Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, TN, India;

University Mediterranea ofReggio Calabria, DIMET, Via Craziella Feo di Vito, 1-89100 Reggio Calabria, Italy;

Michigan State University, Nondestructive Evaluation Laboratory, 2214C Engineering Bldg E, Lansing, Ml 48824, USA;

Non-Destructive Evaluation Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, TN, India;

Non-Destructive Evaluation Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, TN, India;

Non-Destructive Evaluation Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, TN, India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
non-destructive testing; image fusion; wavelet analysis; information energy;

机译：非破坏性测试;图像融合小波分析信息能量;

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Development of image fusion methodology using discrete wavelet transform for eddy current images

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