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:
Apr. 30, 2019
Filed:
Jun. 21, 2016
Pirelli Tyre S.p.a., Milan, IT;
Alessandro Ghidotti Piovan, Imola, IT;
Valeriano Ballardini, Imola, IT;
Vincenzo Boffa, Milan, IT;
Fabio Regoli, Milan, IT;
Luigi Di Stefano, Bologna, IT;
PIRELLI TYRE S.P.A., Milan, IT;
Abstract
Method and related apparatus for detecting defects on a surface of a tire, include: providing the tire; acquiring a digital image including a structure including sections representative of linear elements of a pattern in a surface portion and representative of possible elongated defects, the sections of the structure having a respective orientation; providing a model of the pattern in the surface portion, wherein each pixel is associated with a first index representative of whether the pixel belongs or not to a pattern section and a second index representative of an at least local orientation of the pattern section passing through the pixel; calculating for each pixel of the structure a third index representative of the orientation of the structure section passing through the pixel; and establishing, for each pixel of the structure having a corresponding pixel in the pattern model belonging to the pattern, whether the pixel of the structure belongs to a proposed defect on the basis of the comparison between the third index and the second index associated with the corresponding pixel in the pattern model.