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Resin pocket detection on surfaces and in 3-d volumes of Norway spruce
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0001-8404-7356
2003 (English)In: Proceedings of the Fifth International Conference on Image Processing and Scanning of Wood / [ed] Alfred Rinnhofer, Joanneum research Forschungsgesellshaft mbH , 2003, p. 171-176Conference paper, Published paper (Refereed)
Abstract [en]

Resin pockets, common in softwoods, are small lenses of resin oriented along annual rings. When using Norway spruce for making joinery products, resin pockets are considered as serious defect. CT- and RGB-scanning with various illumination were tested for contrast between resin-pockets and other wood properties. UV light in combination with the RGB-sensor showed good possibility to detect resin pockets on open wood surfaces while the other methods showed less contrast between the resin pockets and other wood properties. Segmentation of resin pockets within the 3-D volume was compared for the different sensors using 3-D graphical methods extracting segmentation from 2-D slices of the test piece. The obtained 3-D volumes can be used for investigation of the 3-D spatial representation of resin pockets in spruce.

Place, publisher, year, edition, pages
Joanneum research Forschungsgesellshaft mbH , 2003. p. 171-176
National Category
Other Mechanical Engineering
Research subject
Wood Technology
Identifiers
URN: urn:nbn:se:ltu:diva-30232Local ID: 3fee4d20-77ff-11dc-80da-000ea68e967bOAI: oai:DiVA.org:ltu-30232DiVA, id: diva2:1003459
Conference
International Conference on Image Processing and Scanning of Wood : 23/03/2003 - 25/03/2003
Note
Godkänd; 2003; 20071011 (ollhag)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Hagman, OlleNyström, Jan

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CiteExportLink to record
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Citation style
  • apa
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  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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