METHOD AND APPARATUS FOR DETECTING DEFECTS ON THE SURFACE OF TYRES

摘要

Method and related apparatus for detecting defects on a surface of a tyre, comprising: - providing the tyre (200); - acquiring at least one digital image of a portion of the surface, wherein each pixel of the image is associated with a luminosity value representative of the reflectivity and/or diffusivity and/or colour of a point of the surface corresponding to said each pixel; - calculating, for each pixel of the image, a first parameter representative of the second derivative calculated in said pixel on said luminosity values; - establishing whether each pixel belongs to a proposed defect as a function of said first parameter.