WO2012143649A1 - Procede d'analyse de la qualite d'un vitrage - Google Patents
Procede d'analyse de la qualite d'un vitrage Download PDFInfo
- Publication number
- WO2012143649A1 WO2012143649A1 PCT/FR2012/050757 FR2012050757W WO2012143649A1 WO 2012143649 A1 WO2012143649 A1 WO 2012143649A1 FR 2012050757 W FR2012050757 W FR 2012050757W WO 2012143649 A1 WO2012143649 A1 WO 2012143649A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glazing
- representative
- image
- elements
- pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2513—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object with several lines being projected in more than one direction, e.g. grids, patterns
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
- G01N2021/9586—Windscreens
Definitions
- the present invention relates to the field of the analysis of the quality of glazing, in particular automotive glazing.
- the present invention more particularly relates to a method for analyzing the quality of a glazing unit, comprising:
- WO-A-02/42715 discloses a method of analyzing the surface of a glazing consisting of extracting, by digital processing and for each pixel of the digitized image, local phases in two directions. The variations of the local phases make it possible to calculate variations of local slopes of the surface of the glazing to deduce variations of curvature or variations of altitude of the surface.
- this possible selection criterion certainly makes it possible to judge the curvature and the altitude of the glazing but does not necessarily make it possible to judge the aesthetic quality of the image produced in reflection by the glazing. Indeed, the aesthetics does not only depend on the geometry of the glazing, but also, for example, the position of observation.
- WO-A-2007/1 15621 and US-B-6 392 754 also disclose methods for measuring the shape of the glazing surface. These methods have the same disadvantage with regard to the relevance of the assessment of the aesthetic quality of the glazing.
- An object of the invention is to provide a method for analyzing the quality of the image produced in reflection by the external surface of a glazing which makes it possible to choose to reject the glazing on the basis of technical criteria which are relevant for the appreciation of the aesthetic quality in reflection of the glazing seen from the outside.
- a method for analyzing the quality of a glazing unit comprising:
- the pattern has a pattern comprising periodically-arranged closed contour elements
- the representative quantities are representative of a deformation of the image of the pattern produced in reflection by the outer surface of the glazing on the outer side of the glazing and in wherein the step of calculating a representative magnitude includes calculating a density of the elements.
- This method has the advantage of making it possible to judge the quality of the reflection image produced by a glazing, not on the basis of the dimensional characteristics of the glazing, but on the basis of the image in reflection produced by the external surface of the glazing. from the outside.
- the choice of rejection of the glazing is then relevant from the point of view of the appreciation of the aesthetic quality of the image produced in reflection on the outside by the glazing.
- the method also makes it possible to evaluate the defects on any zone of the glazing, in particular on the edges of the glazing.
- the method also allows analysis without calibration.
- Another advantage of the method is its robustness to different types of defects, elongated or not, and its robustness to the direction of defects.
- the method comprises one or more of the following characteristics, taken separately or in any technically possible combination:
- the elements are arranged periodically in at least two directions;
- the elements have a larger dimension less than or equal to 50 mm, preferably less than or equal to 20 mm, preferably less than or equal to 10 mm;
- the processing unit analyzes a zone Z of the image comprising at least five elements
- the processing unit calculates a value representative of a local density of the elements in the neighborhood V k of each pixel Pk;
- the neighborhood V k is an area including several pixels around the pixel Pk and center the pixel Pk;
- At least one of said representative quantities is an overall statistical quantity calculated from local statistical value values on at least one of the Z analysis zones;
- the calculation of the local or global statistical quantity includes the calculation of one of the following quantities, taken separately or in any possible combination: an average, a weighted average, a median, a number occurrences above or below a reference value, a maximum, a minimum, a standard deviation, or the difference between a maximum and a minimum;
- the elements are round or polygon-shaped tiles, for example in the shape of a triangle or a parallelogram, for example in the shape of a diamond or a square;
- the elements are defined by strands of a grid
- the elements are in the form of a polygon, for example in the form of a parallelogram, for example in the shape of a diamond or a square;
- the process is reiterated with at least one additional image of the same glazing, different from the first image;
- the additional image is obtained for a pattern identical to the first image but whose pattern is rotated in the plane of the pattern by an angle of at least 20 °;
- the angle of incidence (a) between the apparatus and the normal plane of the glazing is between 0 ° and 90 °, preferably between 40 ° and 70 ° for a side window of a motor vehicle, and preferably between 60 ° and 80 ° for a roof of a motor vehicle;
- the step of generating the image comprises:
- the image of a pattern produced in reflection by the glazing is obtained by simulation from the external surface of the glazing, for example from a theoretical surface of the glazing, from a measured surface of the glazing; still from a surface obtained by simulating the bending of the glazing; the method comprises a step of choosing rejection of the glazing as a function of the result of the comparison.
- it is a method of manufacturing a glazing unit comprising a glazing formation process followed by a method for analyzing the quality of the formed glazing, in which the method of The analysis of the quality of the glazing is as described above.
- the method of manufacturing the glazing comprises a step of bending the glazing.
- Another aspect of the invention relates to a device for analyzing the quality of a glazing unit, comprising means for generating a digital image of a pattern produced in reflection by the external surface of the glazing on the outside of the glazing unit and a unit process for processing the generated image, the processing unit comprising a memory and a computer,
- the memory comprises programs able to implement the method as described above, the programs being able to calculate quantities representative of the glazing from the generated image, the representative quantities being representative of a deformation of the image of the pattern produced in reflection by the outer surface of the glazing on the outside of the glazing and comprising a quantity representative of a local density of the elements.
- FIG. 1 is a schematic view illustrating a quality analysis device of a glazing according to the invention
- FIGS. 2, 2a and 2b are schematic views illustrating examples of a pattern of sight
- FIG. 3 is a perspective view illustrating a glazing unit exposed to a digital image obtained in reflection for a glazing unit illuminated by a pattern according to FIG. 2, the pattern being visible in the background;
- FIG. 4 illustrates the image of FIG. 3 after processing with an algorithm
- Figure 5 illustrates an image similar to Figure 4 for a glazing having no aesthetic defect in reflection.
- FIG. 1 illustrates a device 1 adapted to perform an analysis of the quality of the image produced in reflection by the external surface of a glazing unit 2, on the outside of the glazing unit.
- the device comprises a pattern 4, a digital camera 6, and a picture processing unit 8 produced by the camera 6.
- the pattern of sight illustrated in Figure 2 is a checkerboard composed of contrasting square tiles, for example alternately dark and light.
- the tiles have a shape of any suitable type, for example a shape of a polygon, for example a triangle or a parallelogram, for example a square or a diamond. In general, it is a pattern of contiguous and contrasting tiles forming a checkerboard.
- FIGS 2a and 2b illustrate possible variants of patterns.
- Figure 2a illustrates a pattern composed of contrasting square tiles, spaced (or not joined) and aligned along their diagonals.
- the tiles have a shape of any type suitable for example a form of polygon, for example a triangle or parallelogram, for example square or rhombus. It is a variant of round contrasting elements.
- they are closed contour elements.
- the elements are spaced and arranged periodically in at least one direction, for example in two directions, for example perpendicular.
- the pattern in Figure 2ter is a square tile pattern defined by a grid.
- the tiles have a shape of any type adapted for example a form of polygon, for example triangle or parallelogram, for example square or diamond.
- the elements are of identical shapes and / or of the same dimensions.
- the elements have a larger dimension less than or equal to 50 mm, preferably less than or equal to 20 mm, preferably less than or equal to 10 mm.
- a pattern with a pattern according to Figure 2 and 6mmX6mm side members produced the images of Figures 3 and 4.
- the pattern is for example composed of a single pattern as illustrated in Figures 2 to 2ter. Alternatively, it is a pattern having several patterns in predetermined areas.
- the pattern preferably has dimensions and positioning adapted to generate an image on the entire surface of the glazing.
- the target 4 is here a screen on which an image is projected by a projector 10.
- the target 4 is preferably flat.
- the digital apparatus 6, which is for example a camera (or camera) with CCD sensors, is arranged to receive the image in reflection of the target 4. In the example illustrated, the apparatus 6 is placed opposite side to the sight 4 with respect to the glazing 2.
- the angle ⁇ between the axis of the digital apparatus 6 and the normal to the plane of the glazing 2 is between 0 ° and 90 ° with the surface of the glazing 2.
- This angle is for example between 40 ° and 70 ° for a side window of a motor vehicle, for example about 60 °, in order to be closer to the actual conditions of observation.
- this angle will for example be between 60 ° and 80 °, for example about 75 °.
- An angle greater than, for example, 40 ° makes it possible to reduce the possible disturbances due to secondary reflections.
- Concerning the target 4, note that the angle ⁇ between the plane of the target 4 and the plane of the glazing 2 is preferably equal to the angle ⁇ between the axis of the digital apparatus 6 and the normal to the plane of the glazing 2.
- the digital apparatus 6 supplies the processing unit 8 with a digitized image of the image in reflection of the pattern 4 produced by the glazing 2.
- the raw image produced by a glazing 2 is illustrated in FIG. 3.
- it is more particularly a roof of a motor vehicle.
- zone Z corresponds to the whole of the image produced by the glazing, but that it may be several distinct zones Z, in particular disjoint.
- the processing unit 8 comprises a memory 14 on which processing programs are recorded, and a computer 16 adapted to execute the processing programs.
- the processing programs are capable of producing, by means of the computer 16, calculations of quantities representative of a deformation of the image produced in reflection by the glazing 2.
- the representative quantities are then used to choose to reject the glazing 2 according to the result of the comparison between the values calculated for the corresponding glazing 2 and reference values.
- the reference values are for example obtained by measurement and calculation on reference samples.
- the quantities are more particularly, in the example described, representative of a local density of the elements composing the pattern.
- the local density of the elements composing the pattern in a pixel Pk of the image is for example obtained by calculating the density of the elements in a neighborhood V k of the pixel Pk.
- the neighborhood V k is an area including pixels surrounding the pixel and for example centered on the pixel Pk.
- the processing unit calculates a value representative of a local density of the elements in the neighborhood V k of each pixel Pk.
- the neighborhoods V k are for example all of identical dimensions.
- the local density value is for example obtained by averaging the number of pixels belonging to the contour of the elements in the vicinity.
- the edge / edge pixels are for example detected by means of a Canny filter applied to the grayscale image.
- a variant for the density calculation consists in making a statistical calculation on the neighborhood, for example a standard deviation of the gray levels of the image.
- a frequency analysis of the elements is carried out, for example by means of a Fourier transform on the gray levels.
- Each pixel Pk is thus for example assigned a local density value of the elements in a neighborhood of the pixel Pk.
- Figure 4 illustrates the image of Figure 3 after treatment. Are visible more or less colored areas (gray levels in Figures 4 and 5) corresponding to ordered values of local densities of the elements.
- each pixel of the image has been colored according to its value. Pixels corresponding to high local density values appear brighter.
- the program is adapted so that the processing unit 8 calculates a local standard deviation E or a local rate of change RoC (Rate of Change in English) of the local density of the elements for each pixel of the image inside each analysis zone Z.
- a local standard deviation E or a local rate of change RoC Rate of Change in English
- the value obtained is assigned to each pixel PK.
- the neighborhood V ' k is an area including pixels surrounding the pixel and for example centered on the pixel Pk. This is for example the same neighborhood as the neighborhood ⁇ .
- the processing unit calculates a value representative of a local density variation of the elements in the neighborhood V ' k of each pixel Pk.
- the neighborhoods V ' k are for example all of identical dimensions.
- the local rate of change RoC is for example obtained by calculating the difference between the maximum value of local density in the neighborhood V ' k and the minimum value.
- the statistical quantity is for example a weighted average, a median, a maximum, a minimum, a number of occurrences above or below a reference value, another statistical quantity of any suitable type, or a combination of several of these magnitudes, of any suitable type.
- an overall statistical quantity is for example calculated from the local statistical quantities.
- the statistical magnitude is a weighted average, a median, a minimum, a difference between a maximum and a minimum, a number of occurrences above or below a reference value, another statistical magnitude of any suitable type, or a combination of several of these sizes, of any suitable type.
- the overall statistical magnitude value is compared to a reference value.
- the processing programs of the unit 8 are for example able to perform this comparison.
- the reference values are defined for each zone Z and are for example different for different zones Z.
- a different number of scan zones Z is defined.
- the number, position and extent of the analysis zone (s) Z are selected of any suitable type.
- the invention also relates to the method implementing the above device, namely, in general, a method comprising;
- the pattern 4 has a pattern comprising elements of closed and identical contours arranged periodically, in which the representative quantities are representative of a deformation of the image of the pattern produced in reflection by the external surface of the glazing on the outer side of the glazing and wherein the step of calculating a representative magnitude includes calculating a density of the elements, for example a local density of the elements.
- the method according to the invention has the characteristics described above.
- the method is implemented for at least one additional image, for example an additional image, to make the choice of rejection as a function of the results obtained for the different images.
- the additional image is for example obtained by means of an additional camera, with a synchronized acquisition, for example simultaneous.
- the additional image is obtained with the same camera but after moving the camera, glazing or sight.
- the additional image is obtained without moving the camera and the glazing but after modification of the pattern of the test pattern or modification of the angle of the plane of the test pattern with respect to the glazing.
- the reference values are for example obtained by simulation from the outer surface of the glazing, for example from a theoretical surface of the glazing, from a measured surface or from a surface obtained by simulation bending of the glazing.
- the use of a test pattern and a digital camera is not necessary.
- the reference values are calculated from an image acquired on a reference glazing unit.
- the image of contrasting elements is not obtained by projection on a screen but by a pattern itself in contrast.
- the method according to the invention is combined with a known type of method calculating the altitude of the outer surface of the glazing. Both methods can indeed provide information that is complementary.
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Electromagnetism (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Image Analysis (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Image Processing (AREA)
Abstract
Description
Claims
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/113,323 US9588059B2 (en) | 2011-04-22 | 2012-04-06 | Method for analyzing the quality of a glazing |
| CA2832313A CA2832313A1 (fr) | 2011-04-22 | 2012-04-06 | Procede d'analyse de la qualite d'un vitrage |
| JP2014505695A JP6058629B2 (ja) | 2011-04-22 | 2012-04-06 | グレイジングの品質を解析する方法 |
| CN201280019845.4A CN103649733B (zh) | 2011-04-22 | 2012-04-06 | 装配玻璃的质量分析方法 |
| EA201391570A EA029001B1 (ru) | 2011-04-22 | 2012-04-06 | Способ анализа качества стеклянной панели |
| MX2013012168A MX2013012168A (es) | 2011-04-22 | 2012-04-06 | Metodo para analizar la calidad de un cristal. |
| KR1020137027525A KR20150002431A (ko) | 2011-04-22 | 2012-04-06 | 유리 패널의 품질을 분석하는 방법 |
| BR112013026331-8A BR112013026331A2 (pt) | 2011-04-22 | 2012-04-06 | processo de análise da qualidade de uma vidraça |
| EP12718701.1A EP2699893A1 (fr) | 2011-04-22 | 2012-04-06 | Procede d'analyse de la qualite d'un vitrage |
| ZA2013/07517A ZA201307517B (en) | 2011-04-22 | 2013-10-08 | Method for analysing the quality of a glass panel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1153514 | 2011-04-22 | ||
| FR1153514A FR2974414B1 (fr) | 2011-04-22 | 2011-04-22 | Procede d'analyse de la qualite d'un vitrage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012143649A1 true WO2012143649A1 (fr) | 2012-10-26 |
Family
ID=46026847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2012/050757 Ceased WO2012143649A1 (fr) | 2011-04-22 | 2012-04-06 | Procede d'analyse de la qualite d'un vitrage |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US9588059B2 (fr) |
| EP (1) | EP2699893A1 (fr) |
| JP (1) | JP6058629B2 (fr) |
| KR (1) | KR20150002431A (fr) |
| CN (1) | CN103649733B (fr) |
| BR (1) | BR112013026331A2 (fr) |
| CA (1) | CA2832313A1 (fr) |
| EA (1) | EA029001B1 (fr) |
| FR (1) | FR2974414B1 (fr) |
| MX (1) | MX2013012168A (fr) |
| WO (1) | WO2012143649A1 (fr) |
| ZA (1) | ZA201307517B (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2788666C1 (ru) * | 2021-11-22 | 2023-01-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет имени В.Ф. Уткина" | Способ взаимной калибровки видеокамеры и устройства веерного лазерного подсвета |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580660A (zh) * | 2018-12-29 | 2019-04-05 | 重庆荣成玻璃制品有限公司 | 玻璃生产用侧面光检测装置 |
| LU504045B1 (de) * | 2023-04-24 | 2024-10-24 | Viprotron Gmbh | Messung von Oberflächenverformungen auf Glasoberflächen |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0924494A2 (fr) * | 1997-12-20 | 1999-06-23 | Jürgen Prof. Dr. Massig | Topomètre pour surfaces réfléchissantes |
| US6100990A (en) * | 1999-06-14 | 2000-08-08 | Ford Motor Company | Method and apparatus for determining reflective optical quality using gray-scale patterns |
| US6392754B1 (en) | 1996-10-18 | 2002-05-21 | Innomess Gesellschaft Fur Messtechnik Mbh | Method and apparatus for measuring the profile of reflective surfaces |
| WO2002042715A1 (fr) | 2000-11-22 | 2002-05-30 | Saint-Gobain Glass France | Procede et dispositif d'analyse de la surface d'un substrat |
| WO2007115621A2 (fr) | 2006-04-05 | 2007-10-18 | Isra Surface Vision Gmbh | Procédé et système de mesure de la forme d'une surface réfléchissante |
| WO2009102490A1 (fr) * | 2008-02-15 | 2009-08-20 | Pilkington Group Limited | Procédé de détermination de forme de surface de verre et distorsion optique par imagerie optique réfléchie |
| JP4666273B1 (ja) * | 2010-05-18 | 2011-04-06 | 住友金属工業株式会社 | 板材の平坦度測定方法及びこれを用いた鋼板の製造方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100308A (ja) * | 1986-10-16 | 1988-05-02 | Tokai Rika Co Ltd | 表面欠陥検査装置 |
| DE3816392A1 (de) * | 1988-05-13 | 1989-11-23 | Ver Glaswerke Gmbh | Verfahren zur bestimmung der optischen qualitaet von flachglas oder flachglasprodukten |
| FR2668599B1 (fr) * | 1990-10-31 | 1992-12-31 | Saint Gobain Vitrage Int | Procede et dispositif de mesure de la qualite optique d'un vitrage. |
| FR2688310A1 (fr) * | 1992-03-03 | 1993-09-10 | Saint Gobain Vitrage Int | Procede et dispositif de controle de la transparence d'un vitrage feuillete. |
| US6516085B1 (en) * | 1999-05-03 | 2003-02-04 | Kla-Tencor | Apparatus and methods for collecting global data during a reticle inspection |
| US7471383B2 (en) * | 2006-12-19 | 2008-12-30 | Pilkington North America, Inc. | Method of automated quantitative analysis of distortion in shaped vehicle glass by reflected optical imaging |
| US8131107B2 (en) * | 2008-05-12 | 2012-03-06 | General Electric Company | Method and system for identifying defects in NDT image data |
| FR2951544A1 (fr) * | 2009-10-21 | 2011-04-22 | Saint Gobain | Procede d'analyse de la qualite d'un vitrage |
| ES2745475T3 (es) | 2009-12-31 | 2020-03-02 | Saint Gobain | Acristalamiento con bajos niveles de doble imagen |
| CN101936919B (zh) * | 2010-08-06 | 2012-02-22 | 清华大学 | 一种基于计算机视觉的玻璃质量检测装置及其测量方法 |
-
2011
- 2011-04-22 FR FR1153514A patent/FR2974414B1/fr not_active Expired - Fee Related
-
2012
- 2012-04-06 WO PCT/FR2012/050757 patent/WO2012143649A1/fr not_active Ceased
- 2012-04-06 BR BR112013026331-8A patent/BR112013026331A2/pt not_active IP Right Cessation
- 2012-04-06 EP EP12718701.1A patent/EP2699893A1/fr not_active Withdrawn
- 2012-04-06 EA EA201391570A patent/EA029001B1/ru not_active IP Right Cessation
- 2012-04-06 MX MX2013012168A patent/MX2013012168A/es active IP Right Grant
- 2012-04-06 CA CA2832313A patent/CA2832313A1/fr not_active Abandoned
- 2012-04-06 US US14/113,323 patent/US9588059B2/en not_active Expired - Fee Related
- 2012-04-06 JP JP2014505695A patent/JP6058629B2/ja not_active Expired - Fee Related
- 2012-04-06 KR KR1020137027525A patent/KR20150002431A/ko not_active Abandoned
- 2012-04-06 CN CN201280019845.4A patent/CN103649733B/zh not_active Expired - Fee Related
-
2013
- 2013-10-08 ZA ZA2013/07517A patent/ZA201307517B/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6392754B1 (en) | 1996-10-18 | 2002-05-21 | Innomess Gesellschaft Fur Messtechnik Mbh | Method and apparatus for measuring the profile of reflective surfaces |
| EP0924494A2 (fr) * | 1997-12-20 | 1999-06-23 | Jürgen Prof. Dr. Massig | Topomètre pour surfaces réfléchissantes |
| US6100990A (en) * | 1999-06-14 | 2000-08-08 | Ford Motor Company | Method and apparatus for determining reflective optical quality using gray-scale patterns |
| WO2002042715A1 (fr) | 2000-11-22 | 2002-05-30 | Saint-Gobain Glass France | Procede et dispositif d'analyse de la surface d'un substrat |
| WO2007115621A2 (fr) | 2006-04-05 | 2007-10-18 | Isra Surface Vision Gmbh | Procédé et système de mesure de la forme d'une surface réfléchissante |
| WO2009102490A1 (fr) * | 2008-02-15 | 2009-08-20 | Pilkington Group Limited | Procédé de détermination de forme de surface de verre et distorsion optique par imagerie optique réfléchie |
| JP4666273B1 (ja) * | 2010-05-18 | 2011-04-06 | 住友金属工業株式会社 | 板材の平坦度測定方法及びこれを用いた鋼板の製造方法 |
| WO2011145168A1 (fr) * | 2010-05-18 | 2011-11-24 | 住友金属工業株式会社 | Procédé de mesure de la planéité d'un matériau sous forme de feuille et procédé de production d'une feuille en acier utilisant ledit procédé |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2699893A1 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2788666C1 (ru) * | 2021-11-22 | 2023-01-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет имени В.Ф. Уткина" | Способ взаимной калибровки видеокамеры и устройства веерного лазерного подсвета |
Also Published As
| Publication number | Publication date |
|---|---|
| EA201391570A1 (ru) | 2014-02-28 |
| BR112013026331A2 (pt) | 2020-11-03 |
| JP6058629B2 (ja) | 2017-01-11 |
| ZA201307517B (en) | 2014-11-26 |
| CA2832313A1 (fr) | 2012-10-26 |
| JP2014512534A (ja) | 2014-05-22 |
| US20140050388A1 (en) | 2014-02-20 |
| EA029001B1 (ru) | 2018-01-31 |
| CN103649733B (zh) | 2017-06-20 |
| FR2974414B1 (fr) | 2013-04-12 |
| KR20150002431A (ko) | 2015-01-07 |
| US9588059B2 (en) | 2017-03-07 |
| EP2699893A1 (fr) | 2014-02-26 |
| FR2974414A1 (fr) | 2012-10-26 |
| CN103649733A (zh) | 2014-03-19 |
| MX2013012168A (es) | 2013-12-10 |
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