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Method of fast analysis of the relief elements featuring on the internal surface of a tyre

Abstract : In a method of fast analysis of relief elements featuring on an inner surface of a tire, a three-dimensional image of the surface is captured, and each pixel of the image is assigned a greyscale value proportional to a topographical elevation of a point corresponding to the pixel, so as to obtain a starting image. The image is transformed into an orthogonal reference frame (OXY) in which an abscissa axis (OX) represents circumferential values and an ordinate axis (OY) represents radial values. Each point of the surface, i.e., each pixel, is assigned an altitude gradient value (f(p)) by comparing an elevation of the point with an elevation of a discrete and reduced number of points arranged on a straight line passing through a pixel being considered (p) and oriented in a circumferential direction.
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https://hal.archives-ouvertes.fr/hal-01374654
Contributor : Guillaume Noyel Connect in order to contact the contributor
Submitted on : Friday, September 30, 2016 - 6:57:31 PM
Last modification on : Wednesday, November 17, 2021 - 12:27:13 PM

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  • HAL Id : hal-01374654, version 1

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Guillaume Noyel, Dominique Jeulin, Estelle Parra-Denis, Michel Bilodeau. Method of fast analysis of the relief elements featuring on the internal surface of a tyre. United States, Patent n° : US9196034 (B2). 2015. ⟨hal-01374654⟩

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