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Optimizing Perception Oriented Classification of Sawn Boards from Fibre-Managed Plantation Resources
conference contribution
posted on 2023-05-23, 18:59 authored by Davis, K, Nathan KotlarewskiNathan Kotlarewski, Orr, K, Gregory NolanGregory Nolan, Leavengood, SIn Australia, supplies of native timber are declining and demand for timber in structural and appearance applications is increasing. As the supply of timber shifts from native re-growth, to plantation grown resources, the forest products industry needs to optimize the use of timber that contains higher amounts of naturally occurring growth features. Grading aims to group boards with similar structural and appearance properties for market. Timber products containing no or low quantities of growth features (known as ‘clear cuttings’) are generally valued higher than timber characterized with widespread and diverse feature. However, this approach does not always represent today’s market demand and provides little financial incentive to process timber that contain large amounts of natural features. The aim of this study is to demonstrate a novel means to segregate sawn board from short-rotation Eucalypts into meaningful and useful groups based on the occurrence of knots. This new grading method results in a more precise description of the visual properties of sawn board more suited to emerging and existing markets. The proposed classification systems enables a shift away from prioritizing material without major growth feature and increases flexibility during specification and marketing of sawn board. Cluster analysis revealed 4 naturally occurring groups separated by the occurrence of knot size and type, color, and size of board sections containing specified features.
History
Publication title
Proceedings of the 2018 Society of Wood Science and Technology/Japan Wood Research Society International ConventionEditors
S Le Van-GreenPagination
164-171ISBN
978-0-9817876-8-8Department/School
School of Architecture and DesignPublisher
Society of Wood Science and TechnologyPlace of publication
Nagoya, JapanEvent title
2018 Society of Wood Science and Technology/Japan Wood Research Society International ConventionEvent Venue
Nagoya UniversityDate of Event (Start Date)
2018-11-05Date of Event (End Date)
2018-11-09Repository Status
- Restricted