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Crack Detection and Classification of Oak Lamellas Using Online and Ultrasound Excited Thermography
Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut WKI.
Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut WKI.
Tarkett Eastern Europe, BU WOOD.
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2015 (English)In: Pro Ligno, ISSN 1841-4737, E-ISSN 2069-7430, Vol. 11, no 4, 464-470 p.Article in journal (Refereed) Published
Abstract [en]

On-line thermography and ultrasound-excited thermography have been evaluated for the detection of cracks in oak lamellae of flooring top layers. Image acquisition accompanied the tests and the objects were identified by post-processing and the evaluation of lamella images. The results were validated by comparing these findings with the actual state of the lamellae in terms of cracks and the classification accuracy of the method was calculated. The classification accuracy of the ultrasoundexcited thermography method was three times greater than that of on-line thermography. The main conclusion is that the ultrasound-excited thermography method is the more suitable for the detection of cracks and the classification of lamellae.

Place, publisher, year, edition, pages
2015. Vol. 11, no 4, 464-470 p.
Keyword [en]
classification, cracks, image, lamella, thermography.
National Category
Engineering and Technology Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:hj:diva-29003OAI: oai:DiVA.org:hj-29003DiVA: diva2:893249
Available from: 2016-01-12 Created: 2016-01-12 Last updated: 2016-01-13Bibliographically approved

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fulltext(236 kB)336 downloads
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Popovic, Djordje
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • de-DE
  • en-GB
  • en-US
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  • Other locale
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Output format
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