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Detection of wood s...
Detection of wood species and defects with NIR
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- Grahn, Thomas (författare)
- RISE,Bygg och fastighet
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- Yassin, Zakiya (författare)
- RISE,Bygg och fastighet
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(creator_code:org_t)
- ISBN 9789189757691
- Stockhom, 2022
- Engelska 23 s.
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Serie: RISE Rapport ; 2023:24
- Relaterad länk:
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https://ri.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- In this project the possibility to determine different wood species and detect defects on wood cross-sections on logs with hyperspectral near-infrared camera was investigated. This project was a laboratory study where cross-sections of logs were scanned at the wood and fibre analysis laboratory at RISE with near-infrared instrument.Wood samples from different origins and species, with different defects were scanned with a hyperspectral near-infrared camera. Classification models were developed to characterise and classify the different logs.Spruce and pine samples were collected from different sawmills, a group of these samples contained fungal growth. The defects within the collected logs varied and some samples contained decay fungi such as sap- and heart rot as well as non-destructive blue stain. Classifications models to distinguish between different wood species were developed, as well classification models to differentiate between healthy wood and the fungal attack were also developed.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
Nyckelord
- Near Infrared - wood- defect in wood- wood species- blue stained- heart rot- sap rot
Publikations- och innehållstyp
- vet (ämneskategori)
- rap (ämneskategori)
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