FR3113314B1 - System for characterizing surfaces with a specular component - Google Patents

System for characterizing surfaces with a specular component Download PDF

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Publication number
FR3113314B1
FR3113314B1 FR2008301A FR2008301A FR3113314B1 FR 3113314 B1 FR3113314 B1 FR 3113314B1 FR 2008301 A FR2008301 A FR 2008301A FR 2008301 A FR2008301 A FR 2008301A FR 3113314 B1 FR3113314 B1 FR 3113314B1
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FR
France
Prior art keywords
specular component
point
characterizing
spatial coordinates
light image
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.)
Active
Application number
FR2008301A
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French (fr)
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FR3113314A1 (en
Inventor
Arnaud Jehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
V Optics SAS
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V Optics SAS
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Publication date
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Priority to FR2008301A priority Critical patent/FR3113314B1/en
Publication of FR3113314A1 publication Critical patent/FR3113314A1/en
Application granted granted Critical
Publication of FR3113314B1 publication Critical patent/FR3113314B1/en
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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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/50—Depth or shape recovery
    • G06T7/521—Depth or shape recovery from laser ranging, e.g. using interferometry; from the projection of structured light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10028—Range image; Depth image; 3D point clouds

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Optics & Photonics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Système de caractérisation de surfaces présentant une composante spéculaire L’invention se rapporte à un système optique (1) de caractérisation d’une surface (2) comprenant une composante spéculaire, caractérisé en ce que le système comprend au moins : - un dispositif de projection (3) d’au moins une image lumineuse (6) ayant un schéma défini sur la surface (2) à caractériser, - un dispositif d’acquisition (4) d’au moins une partie de l’image lumineuse réfléchie (7) par la surface à caractériser et issue de l’image (6) projetée, - un système de détermination des coordonnées spatiales et de la pente d’un premier point (A) de la surface, - une unité de calcul des coordonnées spatiales d’un second point (B) de la surface à caractériser à partir, d’une part, des coordonnées spatiales du premier point de la surface et, d’autre part, de l’image (7) lumineuse réfléchie par la surface et issue de l’image projetée entre les premier (A) et second (B) points de la surface. Figure à publier avec l’abrégé : Fig.1System for characterizing surfaces having a specular component The invention relates to an optical system (1) for characterizing a surface (2) comprising a specular component, characterized in that the system comprises at least: - a projection device (3) at least one light image (6) having a pattern defined on the surface (2) to be characterized, - an acquisition device (4) of at least part of the reflected light image (7) by the surface to be characterized and resulting from the projected image (6), - a system for determining the spatial coordinates and the slope of a first point (A) of the surface, - a unit for calculating the spatial coordinates of a second point (B) of the surface to be characterized on the basis, on the one hand, of the spatial coordinates of the first point of the surface and, on the other hand, of the light image (7) reflected by the surface and coming from the projected image between the first (A) and second (B) points on the surface. Figure to be published with abstract: Fig.1

FR2008301A 2020-08-05 2020-08-05 System for characterizing surfaces with a specular component Active FR3113314B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2008301A FR3113314B1 (en) 2020-08-05 2020-08-05 System for characterizing surfaces with a specular component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2008301A FR3113314B1 (en) 2020-08-05 2020-08-05 System for characterizing surfaces with a specular component
FR2008301 2020-08-05

Publications (2)

Publication Number Publication Date
FR3113314A1 FR3113314A1 (en) 2022-02-11
FR3113314B1 true FR3113314B1 (en) 2023-05-12

Family

ID=73497912

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2008301A Active FR3113314B1 (en) 2020-08-05 2020-08-05 System for characterizing surfaces with a specular component

Country Status (1)

Country Link
FR (1) FR3113314B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930030B1 (en) * 2008-04-11 2012-12-28 Visuol Technologies DEVICE FOR CONTROLLING THE QUALITY OF A SURFACE
US8441532B2 (en) * 2009-02-24 2013-05-14 Corning Incorporated Shape measurement of specular reflective surface
WO2011155447A1 (en) * 2010-06-07 2011-12-15 旭硝子株式会社 Shape measuring device, shape measuring method, and method for manufacturing glass plate
US9186470B2 (en) * 2012-02-08 2015-11-17 Apple Inc. Shape reflector and surface contour mapping
DE102019201272B4 (en) * 2018-12-21 2021-09-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device, measuring system and method for detecting an at least partially reflective surface using two reflection patterns

Also Published As

Publication number Publication date
FR3113314A1 (en) 2022-02-11

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