EP 2761587 A1 20140806 - IMPROVED METHOD OF CHECKING THE APPEARANCE OF THE SURFACE OF A TYRE
Title (en)
IMPROVED METHOD OF CHECKING THE APPEARANCE OF THE SURFACE OF A TYRE
Title (de)
VERBESSERTES VERFAHREN ZUR KONTROLLE DES ERSCHEINUNGSBILDES DER FLÄCHE EINES REIFENS
Title (fr)
METHODE AMELIOREE DE CONTROLE DE L'ASPECT DE LA SURFACE D'UN PNEUMATIQUE
Publication
Application
Priority
- FR 1158800 A 20110930
- EP 2012069152 W 20120927
Abstract (en)
[origin: WO2013045593A1] Method of detection according to claim 9, in which, - the grey level image of the interior surface of a tyre to be checked is captured, and this starting image is transformed into an orthonormal space in which the abscissa axis (OX) represents the circumferential direction, and the ordinate axis (OY), - the predetermined series of filters is applied to the starting image of the interior surface of the tyre to be checked so as to obtain a multivariate starting image, - the multivariate starting image is split according to the predefined tiling into the axial and circumferential directions, in such a way as to obtain multivariate imagettes of the interior surface of the tyre to be checked, - each of the multivariate imagettes is transformed into unidimensional vectors, with the aid of each of the selected descriptors, in such a way as to obtain a simplified multivariate image of the interior surface of the tyre to be checked, - the simplified multivariate image is transformed into the common reduced factor space, - with the aid of a classifier able to identify the zones of the reduced common factor space wherein the anomalies are accommodated, the imagettes of the interior surface of the tyre to be checked containing an anomaly are located.
IPC 8 full level
G06T 7/00 (2006.01); G06V 10/764 (2022.01)
CPC (source: EP US)
G06F 18/2132 (2023.01 - EP US); G06F 18/2135 (2023.01 - US); G06F 18/2411 (2023.01 - US); G06T 7/0004 (2013.01 - EP US); G06V 10/764 (2022.01 - EP US); G06V 10/7715 (2022.01 - EP US); G06T 7/001 (2013.01 - US); G06T 2207/20021 (2013.01 - EP US); G06V 2201/06 (2022.01 - EP US)
Citation (search report)
See references of WO 2013045593A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013045593 A1 20130404; CN 103843034 A 20140604; EP 2761587 A1 20140806; FR 2980735 A1 20130405; FR 2980735 B1 20160909; US 2014233841 A1 20140821; US 9189841 B2 20151117
DOCDB simple family (application)
EP 2012069152 W 20120927; CN 201280047802 A 20120927; EP 12762640 A 20120927; FR 1158800 A 20110930; US 201214348156 A 20120927