EVALUATION OF TEST SPECIMEN SURFACE PREPARATION ON COMPUTER VISION WOOD IDENTIFICATION

Authors

  • Frank Owens Mississippi State University https://orcid.org/0000-0002-5421-3269
  • Prabu Ravindran University of Wisconsin, Madison
  • Adriana Costa Mississippi State University
  • Brunela Pollastrelli Rodrigues Clemson University
  • Manuel Chavesta Universidad Nacional Agraria La Molina
  • Rolando Montenegro Universidad Nacional Agraria La Molina
  • Rubin Shmulsky Mississippi State University
  • Alex Wiedenhoeft USDA Forest Service, Forest Products Laboratory

Abstract

Previous studies on computer vision wood identification (CVWID) have assumed or implied that the quality of sanding or knifing preparation of the transverse surface of wood specimens could influence model performance, but its impact is unknown and largely unexplored. As a preliminary step in investigating the possible effects of surface preparation quality, this study evaluates the predictive accuracy of a previously published 24-class model, trained on images from Peruvian wood specimens prepared at 1500 sanding grit, with testing images from specimens (not used for training) prepared across a series of progressively coarser sanding grits (1500, 800, 600, 400, 240, 180 and 80) and high-quality knife cuts.  The results show that while there was a drop in performance at the lowest sanding grit of 80, most of the higher grits and knife cuts did not exhibit statistically significant differences in predictive accuracy. These results lay the groundwork for a future larger-scale investigation into how the quality of surface preparation in both training and testing data will impact CVWID model accuracy.

Author Biographies

Frank Owens, Mississippi State University

Assistant Professor

Department of Sustainable Bioproducts

Prabu Ravindran, University of Wisconsin, Madison

Scientist III

Department of Botany

Adriana Costa, Mississippi State University

Assistant Professor

Department of Sustainable Bioproducts

Brunela Pollastrelli Rodrigues, Clemson University

Assistant Professor

Department of Forestry and Environmental Conservation

Manuel Chavesta, Universidad Nacional Agraria La Molina

Profesor Principal

Department of Wood Industry

Rolando Montenegro, Universidad Nacional Agraria La Molina

Profesor Asociado

Department of Wood Industry

Rubin Shmulsky, Mississippi State University

Professor and Head

Department of Sustainable Bioproducts

Alex Wiedenhoeft, USDA Forest Service, Forest Products Laboratory

Research Botanist and Team Leader

Center for Wood Anatomy Research

Downloads

Published

2023-11-15

Issue

Vol. 55 No. 2 (2023): Wood and Fiber Science

Section

Research Contributions

License

The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:

1. All proprietary rights other than copyright, such as patent rights.

2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.

3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.