Quantitative evaluation of active thermography using contrast-to-noise ratio

被引：20

作者：

Svantner, M. ^{[1
]}

Muzika, L. ^{[1
]}

Chmelik, T. ^{[1
]}

Skala, J. ^{[1
]}

机构：

[1] Univ West Bohemia, New Technol Res Ctr, Univ 8, Plzen 30614, Czech Republic

来源：

APPLIED OPTICS | 2018年 / 57卷 / 18期

关键词：

COMPOSITES; INSPECTION;

D O I：

10.1364/AO.57.000D49

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Active thermography is an infrared-based technique for nondestructive testing of materials. It often uses advanced evaluation techniques based on temperature spatial and temporal changes. Results of active thermography are contrast differences, which indicate possible defects in an inspected material. These differences cannot be quantified by temperature. This contribution is focused on the active thermography results' evaluation parameters and the contrast-to-noise ratio method, which can be used for quantitative evaluation of the results. Different result interpretation procedures are introduced. The influence of a selection method for indication and reference regions and the effect of image scaling on inspection results are discussed. (C) 2018 Optical Society of America

引用

页码：D49 / D55

页数：7

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