Deep Learning Based Defect Detection and Quality Classification on Lamella Pieces Used in Solid Wood Panel Production

Merve Ozkan (), Caner Ozcan () and Mahmut Selman Gokmen ()
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Merve Ozkan: The Institute of Graduate Studies
Caner Ozcan: Faculty of Engineering
Mahmut Selman Gokmen: University of Kentucky

SN Operations Research Forum, 2025, vol. 6, issue 4, 1-26

Abstract: Abstract In the solid wood panel industry, combining lamella pieces of consistent quality is critical for final product performance. However, most manufacturers still rely on manual classification by quality control teams, a process that is labor-intensive, error-prone, and inefficient. This reliance often results in production delays, inconsistent quality, and even financial losses due to panels being sold below cost, ultimately eroding customer trust. To address these challenges, this study proposes an expert decision support system based on deep learning to automate lamella quality classification. A Mask R-CNN model with a ResNet-101 backbone was trained on 2972 beech wood images to detect key defects knots, ray cells, and cracks that determine lamella grading. The system then classifies lamellas into AA, BB, CC, and Crack categories, achieving an overall classification accuracy of 90.90%. This work introduces a novel approach, validated on a custom dataset, that reduces dependency on manual labor and significantly enhances efficiency and reliability in solid panel production.

Keywords: Mask R-CNN; Decision support system; Artificial intelligence network; Solid wood panel production; Lamella quality classification; Lamella dataset segmentation (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s43069-025-00534-w

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