Characterisation of paper

G - Physics – 06 – T

Patent

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G06T 7/40 (2006.01) G01N 33/34 (2006.01) G06N 3/08 (2006.01)

Patent

CA 2497547

A method and system for characterising paper, where from images of numerous paper samples are extracted multi-dimensional features describing features of the paper; the said features are entered as input into a learning classifier operating in an unsupervised manner, which produces an projection of the said data of each picture part in a low-dimension space in such a way that paper grades having close properties produce close projection in the low-dimension space and the classification results depicted in the low-dimension space are used to aid classification.

La présente invention concerne un procédé et un système de caractérisation du papier, dans lesquels on extrait, à partir d'images de nombreux échantillons de papier, des caractéristiques multidimensionnelles décrivant des caractéristiques du papier; lesdites caractéristiques sont saisies comme entrées dans un classificateur autodidactique fonctionnant de manière non supervisée, lequel produit une projection desdites données de chaque élément d'image dans un espace de faible dimension de telle manière que les sortes de papier présentant des propriétés proches produisent une projection proche dans l'espace de faible dimension et les résultats de classement illustrés dans l'espace de faible dimension sont utilisés pour faciliter le classement.

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