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16 July 2019 Cracks detection on glass object based on active thermography approach
Thomas Herrmann, Cyrille Migniot, Olivier Aubreton
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Proceedings Volume 11172, Fourteenth International Conference on Quality Control by Artificial Vision; 111721E (2019) https://doi.org/10.1117/12.2520920
Event: Fourteenth International Conference on Quality Control by Artificial Vision, 2019, Mulhouse, France
Abstract
Thermal imaging is nowadays widely used in many industrial areas for non destructive analysis. This paper focuses on the detection by active thermography of cracks in a transparent and specular piece of glass. A continuous laser scans the target by creating a hot spot that is acquired by a thermal camera. A thermal map is computed by averaging of thermal measurements for all the positions of the hot spot on the target. Then edge filters are applied to highlight the cracks. Experimental results demonstrate the validity of the material damage estimation in a short processing time.
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Thomas Herrmann, Cyrille Migniot, and Olivier Aubreton "Cracks detection on glass object based on active thermography approach", Proc. SPIE 11172, Fourteenth International Conference on Quality Control by Artificial Vision, 111721E (16 July 2019); https://doi.org/10.1117/12.2520920
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KEYWORDS
Glasses
Thermography
Defect detection
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