Physics-based image enhancement for infrared thermography

被引：59

作者：

Holland, Stephen D. ^{[1
,2
]}

Renshaw, Jeremy ^{[2
,3
]}

机构：

[1] Iowa State Univ, Dept Aerosp Engn, Ames, IA 50011 USA

[2] Iowa State Univ, Ctr Nondestruct Evaluat, Ames, IA 50011 USA

[3] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

来源：

NDT & E INTERNATIONAL | 2010年 / 43卷 / 05期

关键词：

Flash thermography; Vibrothermography; Sonic infrared; Sonic IR; Image processing; Image enhancement; Laplacian filter;

D O I：

10.1016/j.ndteint.2010.04.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thermal imaging with an infrared camera can be used to view the location and intensity of heat sources in space and time. In a thermal conductor, thermal diffusion blurs out those heat sources. Knowledge of the physics of thermal diffusion can be used to enhance the spatial and temporal resolution of thermal images. In two dimensions, quantitative reconstruction of the heat source intensity is possible. The same algorithm applied to three-dimensional heat flows provides dramatic improvements in temporal and spatial resolution of the thermal images. Performance is illustrated both in theory and by experiment. An application example demonstrates utility to nondestructive evaluation. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：440 / 445

页数：6

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