The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2016
Filed:
Mar. 21, 2012
Jean-paul Zanella, Clermont-Ferrand Cedex, FR;
Claire Moreau, Clermont-Ferrand Cedex, FR;
Guillaume Noyel, Clermont-Ferrand Cedex, FR;
Yusi Shen, Clermont-Ferrand Cedex, FR;
Jean-Paul Zanella, Clermont-Ferrand Cedex, FR;
Claire Moreau, Clermont-Ferrand Cedex, FR;
Guillaume Noyel, Clermont-Ferrand Cedex, FR;
Yusi Shen, Clermont-Ferrand Cedex, FR;
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand, FR;
MICHELIN RECHERCHE ET TECHNIQUES S.A., Granges-Paccot, CH;
Abstract
A method for processing an image of a surface of a tire under inspection is described. A three-dimensional digital image of the surface is captured and, for each point of the captured image, a grey-level value corresponding to an elevation is assigned to the point. Utilizing a first morphological operator that uses a rectangular key element, a closure-type first transformation of the image of the surface is carried out. Utilizing a second morphological operator that uses a rectangular key element, an opening-type second transformation of the surface is carried out. For each point of the image, a grey-level value equal to a minimum value between a grey-level value at that point obtained in a preceding step and a grey-level value at that point is assigned, so as to eliminate false measurement points.