Method for segmenting e.g. radially inner surface, of tire of car to discover defects and non-uniformities, involves processing image to segment image into regions corresponding to regions of tires, which do or do not belong to groove

NOVELTY - The method involves irradiating a portion of a surface (5a) of a tire (P) with electromagnetic radiation including wavelength in a visible spectrum. An image of the portion of the irradiated surface is acquired. The image is processed to segment the image into regions corresponding to regions of the tires, which do or do not belong to a groove, by calculating a statistical quantity associated with irradiation by the radiation for the regions of the image and determining whether the regions of the image do or do not belong to the groove according to a value of the statistical quantity. USE - Method for segmenting a surface e.g. radially inner surface and radially outer surface, of a tire of a car to discover defects and non-uniformities. ADVANTAGE - The method enables improving efficiency in terms of accuracy of inspection of the tire, thus enabling the requisite defects and parameters of the surface to be detected while reducing errors with greater precision and accuracy. The method enables improving lighting and providing pre-processing of the acquired images before the inspection can be conducted with the required degree of reliability. DETAILED DESCRIPTION - The statistical quantity is a standard deviation. INDEPENDENT CLAIMS are also included for the following: (1) a method for detecting defects on a surface of a tire (2) an equipment for segmenting a surface of a tire. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an equipment for segmenting a tire. Tire (P) Surfaces of tire (5a, 5b) Base of equipment (40) Robotic arm (41) Electromagnetic radiation source (50)