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Method of checking the appearance of the surface of a tyre

Abstract : A tire appearance detection method includes: capturing an original grey-level image of an inner surface of a tire, and transforming the original image into an orthonormal space with an x-axis (OX) representing a circumferential direction and with a y-axis (OY) representing a radial direction; applying a series of filters to the original image, to obtain a multivariate image; splitting the multivariate image according to a predefined tiling in axial and circumferential directions, to obtain multivariate sub-images of the inner surface of the tire; transforming each of the multivariate sub-images into one-dimensional vectors using selected descriptors, to obtain a simplified multivariate image of the inner surface of the tire; transforming the simplified multivariate image into a common reduced factorial space; and locating sub-images of the inner surface of the tire containing an anomaly using a classifier suitable for identifying an area of the common reduced factorial space containing an anomaly.
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https://hal.archives-ouvertes.fr/hal-01374649
Contributor : Guillaume Noyel Connect in order to contact the contributor
Submitted on : Friday, September 30, 2016 - 6:47:01 PM
Last modification on : Wednesday, November 17, 2021 - 12:27:13 PM

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  • HAL Id : hal-01374649, version 1

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Guillaume Noyel, Dominique Jeulin, Estelle Parra-Denis, Michel Bilodeau. Method of checking the appearance of the surface of a tyre. United States, Patent n° : US9189841 (B2). 2015. ⟨hal-01374649⟩

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