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Abstract : Method of fast analysis of the relief elements featuring on the interior surface of a tyre, said method comprising the steps in the course of which: A- the three dimensional image of said surface is captured by assigning each pixel of the image a grey level value proportional to the topographical elevation of this point, so as to obtain a starting image, B- the image of the surface captured is transformed into an orthogonal reference frame (OXY) in which the abscissa axis (OX) represents the circumferential values, and the ordinate axis (OY) represents the radial values, C- each pixel of the surface is assigned a value of altitude gradient (ƒ(p)) by comparing its elevation with the elevation of a discrete and reduced number of points disposed on a straight line passing through the relevant pixel (p) and oriented in the circumferential direction.
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Contributor : Guillaume Noyel Connect in order to contact the contributor
Submitted on : Tuesday, March 7, 2017 - 12:34:14 PM
Last modification on : Wednesday, November 17, 2021 - 12:27:13 PM


  • HAL Id : hal-01484492, version 1



Guillaume Noyel, Dominique Jeulin, Estelle Parra-Denis, Michel Bilodeau. 在轮胎的内部表面上的浮凸元素特征的快速分析方法. China, Patent n° : CN 103858147 B. 2016. ⟨hal-01484492⟩



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