Wood Piece Quality Evaluation using Choquet Integral and Fuzzy Merging

Abstract

This paper presents a way to evaluate the wood product quality according to his tomographic image. The use of X ray computed tomography and ad-hoc software allows to have a representation of an item (a product) before the first cutting operation. From this representation, we aim to obtain an honest evaluation of their aesthetic quality. To do that singularity features are extracted and their impact on the product visual quality is assesed thanks to the Choquet integral. Next, the visual quality is evaluated by merging singularity impacts and singularity number criterion using suitable operators. Three operators are compared to the mean operator which is the commonly used one when there are few knowledge on the decision process.