3D fibre orientation reconstruction around a knot in Douglas fir
Communication avec acte
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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Performance of timber board models for prediction of local bending stiffness and strength—with application on douglas fir sawn timber Article dans une revue avec comité de lectureOLSSON, Anders; POT, Guillaume; VIGUIER, Joffrey; HU, Min; OSCARSSON, Jan (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 ...
Traceability and quality assessment of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) logs: the TreeTrace_Douglas database Article dans une revue avec comité de lectureLONGUETAUD, Fleur; POT, Guillaume; MOTHE, Frédéric; BARTHELEMY, Alexis; DECELLE, Rémi; DELCONTE, Florian; GE, Xihe; GUILLAUME, Grégoire; MANCINI, Théo; RAVOAJANAHARY, Tojo; BUTAUD, Jean-Claude; COLLET, Robert; DEBLED-RENNESSON, Isabelle; MARCON, Bertrand; NGO, Phuc; ROUX, Benjamin; 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 ...
New Perspectives for LVL Manufacturing from Wood of Heterogeneous Quality—Part. 1: Veneer Mechanical Grading Based on Online Local Wood Fiber Orientation Measurement Article dans une revue avec comité de lectureDURIOT, Robin; POT, Guillaume; GIRARDON, Stéphane; ROUX, Benjamin; MARCON, Bertrand; VIGUIER, Joffrey; DENAUD, Louis (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 ...
Veneer Mechanical Grading Based on Online Local Wood Fiber Orientation Measurements to Model and Manufacture Stiffness Optimized Structural Beams Communication avec acteDURIOT, Robin; POT, Guillaume; GIRARDON, Stéphane; ROUX, BENJAMIN; MARCON, Bertrand; VIGUIER, Joffrey; DENAUD, Louis (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 ...
Board localization within logs using image analysis approaches for traceability and quality assessment in sawmills Communication avec acteLI, Xiaolin; POT, Guillaume; NGO, Phuc; VIGUIER, Joffrey; BUTAUD, Jean-Claude; COLLET, Robert (2022-11-16)Board localization within logs using image analysis approaches for traceability and quality assessment in sawmills