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 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 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 (Springer Nature (since 2011)/EDP Science (until 2010), 2018)
Key message Machine strength grading of sawn timber is an important value adding process for the sawmilling industry. By utilizing data of local fibre orientation on timber surfaces, obtained from laser scanning, more ...
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Article dans une revue avec comité de lecture;POT, Guillaume; ; VIGUIER, Joffrey; PENVERN, Hélène (Springer Science and Business Media LLC, 2023-09-13)
This paper addresses the problem of timber board positioning within the log where they were sawn from. The method takes as input log and board end cross-section images. It uses a two-step image matching method based on ...