Digital radiographic image enhancement for weld defect detection using smoothing and morphological transformations / Suhaila Abdul Halim, Arsmah Ibrahim and Yupiter Harangan Prasada Manurung

Abdul Halim, Suhaila and Ibrahim, Arsmah and Prasada Manurung, Yupiter Harangan (2012) Digital radiographic image enhancement for weld defect detection using smoothing and morphological transformations / Suhaila Abdul Halim, Arsmah Ibrahim and Yupiter Harangan Prasada Manurung. Scientific Research Journal, 9 (1). pp. 15-27. ISSN 1675-7009

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Abstract

Accurate inspection ofweldedmaterials is important in relation to achieve acceptable standards. Radiography, a non-destructive test method, is commonly used to evaluate the internal condition ofa material with respect to defect detection. Thepresence ofnoise in low resolution ofradiographic images significantly complicates analysis; therefore attaining higher quality radiographic images makes defect detection more readily achievable. This paper presents a study pertaining to the quality enhancement of radiographic images with respect to different types of defects. A series of digital radiographic weld flaw images were smoothed using multiple smoothing techniques to remove inherent noise followed by top and bottom hat morphological transformations. Image quality was evaluated quantitatively with respect to SNR, PSNR andMAE. The results indicate that smoothing enhances the quality ofradiographic images, thereby promoting defect detection with the respect to original radiographic images.

Item Type: Article
Uncontrolled Keywords: Radiography, smoothing and morphological transformations, Signal to Noise Ratio, Peak Signal to Noise Ratio, Mean Absolute Error.
Subjects: Q Science > QA Mathematics > Analysis > Smoothness of functions
R Medicine > RC Internal Medicine > Radiography > Radiographic magnification
R Medicine > RC Internal Medicine > Radiography > Malaysia
Divisions: Research Management Institute (RMI)
Depositing User: Staf Pendigitan 1
Date Deposited: 22 Sep 2015 04:27
Last Modified: 30 May 2016 03:08
URI: http://ir.uitm.edu.my/id/eprint/12956

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