3D fibre orientation reconstruction around a knot in Douglas fir
Communication avec acte
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PENVERN, Hélène POT, Guillaume VIGUIER, Joffrey COLLET, Robert DEMOULIN, LeyneROUX, BenjaminOLSSON, AndersHU, MinAbstract
This work is exhibiting a new laboratory investigation method to obtain fibre 3D angle measurement of a wood piece after successive planing of the whole specimen. By combining in-plane fibre measurements through laser points measurements (using the tracheid effect) and growth layer reconstruction through image processing of RGB scans of each revealed planed faces of the douglas fir specimen, we achieve to make a full map of the 3D fibre angle of the wood piece.
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Article dans une revue avec comité de lecturePENVERN, Hélène; DEMOULIN, Leyne; POT, Guillaume; VIGUIER, Joffrey; ; ; (Springer Science and Business Media LLC, 2024-08-09)
The mechanical properties of structural timber largely depend on the occurrence of knots and on fibre deviation in their vicinities. In recent strength grading machines, lasers and cameras are used to detect surface ...
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Article dans une revue avec comité de lectureLONGUETAUD, Fleur; POT, Guillaume; ; ; ; DELCONTE, Florian; ; ; ; ; ; COLLET, Robert; ; ; ; ; VIGUIER, Joffrey (Springer Science and Business Media LLC, 2022-11-28)
The TreeTrace_Douglas database includes images and measurements at several stages of the processing of Douglas fir logs, from sawmill logyard to machine grading and destructive testing of boards, and is suitable for research ...
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Article dans une revue avec comité de lecture; ; ;POT, Guillaume; VIGUIER, Joffrey (2022)
Efficient utilization of structural timber requires accurate methods for machine strength grading. One of the most accurate methods presented this far is based on data of local fiber orientation on board surfaces, obtained ...
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Article dans une revue avec comité de lecture; ; ; ;POT, Guillaume; ; VIGUIER, Joffrey (MDPI AG, 2021)
The grading of wood veneers according to their true mechanical potential is an important issue in the peeling industry. Unlike in the sawmilling industry, this activity does not currently estimate the local properties of ...
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Communication avec acteDURIOT, Robin; POT, Guillaume; ; ; ; VIGUIER, Joffrey; (2023-10-04)
Grading veneer for plywood manufacturing is often performed on line using visual criteria issued from EN 635-3 standard. For mechanical applications, the only visual criteria can be not sharp enough to accurately grade ...