Frontiers of Mechanical Engineering >

2009 , Vol. 4 >Issue 2: 224 - 227

DOI: https://doi.org/10.1007/s11465-009-0017-x

RESEARCH ARTICLE

Detection for transverse corner cracks of steel plates’ surface using wavelet

  • Qiong ZHOU ,
  • Qi AN
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  • School of Mechanical and Power Engineering of East China University of Science and Technology, Shanghai 200237, China

Received date: 10 Jul 2008

Accepted date: 02 Sep 2008

Published date: 05 Jun 2009

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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Abstract

An algorithm is presented for detecting transverse corner cracks at a steel plate surface using wavelet transform. According to characteristics of transverse corner crack images, the wavelet transform is used for the multi-scale analysis of detecting the image edges and disintegrating the image into four directions at the same time. The proper threshold value is chosen to segment the image into vertical components to obtain the final detection result. The experiment shows that transverse corner cracks of steel plates can be more effectively extracted by the proposed method than the other two common methods.

Key words： transverse corner cracks; defect detection; multi-scales wavelet analysis

Cite this article

Qiong ZHOU , Qi AN . Detection for transverse corner cracks of steel plates’ surface using wavelet[J]. Frontiers of Mechanical Engineering, 2009 , 4(2) : 224 -227 . DOI: 10.1007/s11465-009-0017-x

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