Processing of infrared thermography images in pulsed-heating infrared thermography nondestructive testing

Huijun Tang; Tieying Ding; Shuwen Xue; Mingcheng Zong

doi:10.1117/12.318357

10 August 1998 Processing of infrared thermography images in pulsed-heating infrared thermography nondestructive testing

Huijun Tang, Tieying Ding, Shuwen Xue, Mingcheng Zong

Author Affiliations +

Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998) https://doi.org/10.1117/12.318357
Event: Photonics China '98, 1998, Beijing, China

Abstract

In the IR thermography non-destructive testing, image blurring introduced by noises and heat diffusion in the sample is an important problem. In this paper, a serial of image processing methods are proposed to eliminate the influence caused by noises and heat diffusion. By use of these methods, image averaging, median-value, binarization and gradient alternation have been done. The processed images' characteristics are clear, and the error of detection is smaller than 5 percent. It is showed that the technique can effectively remove the blurring in images, improve image resolution and give us distinct images that meet the need of IR thermography non-destructive testing technology.

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Huijun Tang, Tieying Ding, Shuwen Xue, and Mingcheng Zong "Processing of infrared thermography images in pulsed-heating infrared thermography nondestructive testing", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318357

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