SURFACE DEFECTS DETECTION ON ROLLED STEEL STRIPS BY GABOR FILTERS

Roberto Medina, Fernando Gayubo, Luis M. González, David Olmedo, Jaime Gómez, Eduardo Zalama, José R. Péran

2008

Abstract

Product material integrity and surface appearance, in steel flat products manufacturing and processing, are important attributes that will affect product operation, reliability and customer confidence. Automated visual inspection has to be envisaged, but five major problems have to be overcome: (i) The variable nature of the defects, (ii) The high reflective nature of the metallic surfaces, (iii) The oil presence, (iv) The huge amount of visual data to be acquired and processed, and (v) The high speed in the section where inspections are performed. We have developed an automated cellular visual inspection system of flat products in a flat steel cutting factory. Among the approaches that the system uses to detect defects, we have included the two-dimensional Gabor filters. In this paper a detection procedure of defects in flat steel products based on Gabor filters is presented. The traditional methods based on the study of the grey-level histogram and shape analysis, have shown quite good results, but there are not good enough to achieve the level of success required. Experimental results show that a greater number of defects can be readily detected using the proposed approach.

Paper Citation

in Harvard Style

Medina R., Gayubo F., González L., Olmedo D., Gómez J., Zalama E. and Péran J. (2008). SURFACE DEFECTS DETECTION ON ROLLED STEEL STRIPS BY GABOR FILTERS . In Proceedings of the Third International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2008) ISBN 978-989-8111-21-0, pages 479-485. DOI: 10.5220/0001088504790485

in Bibtex Style

@conference{visapp08,
author={Roberto Medina and Fernando Gayubo and Luis M. González and David Olmedo and Jaime Gómez and Eduardo Zalama and José R. Péran},
title={SURFACE DEFECTS DETECTION ON ROLLED STEEL STRIPS BY GABOR FILTERS},
booktitle={Proceedings of the Third International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2008)},
year={2008},
pages={479-485},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001088504790485},
isbn={978-989-8111-21-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2008)
TI - SURFACE DEFECTS DETECTION ON ROLLED STEEL STRIPS BY GABOR FILTERS
SN - 978-989-8111-21-0
AU - Medina R.
AU - Gayubo F.
AU - González L.
AU - Olmedo D.
AU - Gómez J.
AU - Zalama E.
AU - Péran J.
PY - 2008
SP - 479
EP - 485
DO - 10.5220/0001088504790485