Patent application number | Description | Published |
20110018999 | Device for Evaluating the Surface of a Tire - A device for evaluating the appearance of the surface of a tire (P) comprising a color linear camera ( | 01-27-2011 |
20130051652 | Method and Device for the Automatic Inspection of a Cable Spool - Method for detecting and evaluating the protrusions that appear on cords coming from a twisting/rubberizing process, by the digital processing of the image of a layer of cord formed by a number of turns wound around the core of a spool ( | 02-28-2013 |
20140270390 | ANALYSIS OF THE DIGITAL IMAGE OF THE INTERNAL SURFACE OF A TYRE AND PROCESSING OF FALSE MEASUREMENT POINTS - A method for processing an image of a surface of a tyre under inspection is described. A three-dimensional digital image of the surface is captured and, for each point of the captured image, a grey-level value corresponding to an elevation is assigned to the point. Utilizing a first morphological operator that uses a rectangular key element, a closure-type first transformation of the image of the surface is carried out. Utilizing a second morphological operator that uses a rectangular key element, an opening-type second transformation of the surface is carried out. For each point of the image, a grey-level value equal to a minimum value between a grey-level value at that point obtained in a preceding step and a grey-level value at that point is assigned, so as to eliminate false measurement points.— | 09-18-2014 |
20140307941 | ANALYSIS OF THE DIGITAL IMAGE OF THE EXTERNAL SURFACE OF A TYRE AND PROCESSING OF FALSE MEASUREMENT POINTS - Method for processing the three-dimensional digital image of the surface of a tyre in which the three-dimensional image of the said surface is captured while assigning to each pixel of the plane of the image an item of information relating to the elevation of this point with respect to the surface to be inspected, characterized in that, with the aid of a morphological operator using a structuring element, a first transformation of the image of the surface is performed with the aid of an opening and then of a closing, so as to tailor the grey level of the pixels situated abnormally above or below the surface to be inspected. | 10-16-2014 |
Patent application number | Description | Published |
20130208949 | METHOD FOR IDENTIFYING AND DEFINING BASIC PATTERNS FORMING THE TREAD PATTERN OF A TYRE. - A tyre tread, having circumferentially juxtaposed elements separated from one another by identically shaped boundaries and having a least one basic pattern, is inspected by: producing an image of the tyre tread; identifying tread wear indicators on the image; grouping together sub-sets of the indicators according to the basic pattern(s) included in the indicators; determining a characteristic point of each of the sub-sets of the indicators; determining a sequence of distances by computing distances between the characteristics points of each of the sub-sets of the indicators; comparing and the sequence of distances with a known sequence of distances between characteristic points of the basic pattern(s) to confirm coincidence thereof; and projecting a shape of a boundary between elements of the tyre tread onto a surface to be inspected according to the known sequence of distances between characteristic points of the basic pattern(s). | 08-15-2013 |
20140185883 | ANALYSIS OF THE DIGITAL IMAGE OF THE SURFACE OF A TYRE AND PROCESSING OF NON-MEASUREMENT POINTS - In a method for processing an image of a surface of a tyre, a 3D digital image of the surface is captured, and each pixel of the captured image is assigned a grey level value proportional to an elevation of a corresponding point with respect to the surface. The pixels are placed in rows and columns. A search is made for zones of the surface that include pixels having a grey-level value lower than a given threshold. Boundaries of an encompassing box that includes one or more of the zones are determined. Inside the encompassing box, a grey-level value equal to a mean grey-level value of a set of reference pixels (K | 07-03-2014 |
20150043780 | METHOD FOR DETERMINING ELEMENTS IN RELIEF ON THE SURFACE OF A TYRE - A method of determining relief elements on a tyre surface includes capturing a three-dimensional image of the surface and assigning to each pixel (i, j) of the image a grey-level value proportional to a topographic elevation of a point corresponding to the pixel, so as to obtain a starting image (f). The method also includes transforming the starting image (f) by a first top-hat operation, with aid of a first structuring element, so as to obtain an image (f | 02-12-2015 |
Patent application number | Description | Published |
20100282160 | SINGLE CRYSTALS AND METHODS FOR FABRICATING SAME - Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well. | 11-11-2010 |
20120145069 | MELT FIXTURE INCLUDING THERMAL SHIELDS HAVING A STEPPED CONFIGURATION AND A METHODS OF USING THE SAME - Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well. | 06-14-2012 |
20140017479 | METHOD OF FORMING AN R-PLANE SAPPHIRE CRYSTAL - A method and apparatus for the production of r-plane single crystal sapphire is disclosed. The method and apparatus may use edge defined film-fed growth techniques for the production of single crystal material exhibiting an absence of lineage. | 01-16-2014 |