SG11202006860UA - Structured light projection for specular surfaces - Google Patents

Structured light projection for specular surfaces

Info

Publication number
SG11202006860UA
SG11202006860UA SG11202006860UA SG11202006860UA SG11202006860UA SG 11202006860U A SG11202006860U A SG 11202006860UA SG 11202006860U A SG11202006860U A SG 11202006860UA SG 11202006860U A SG11202006860U A SG 11202006860UA SG 11202006860U A SG11202006860U A SG 11202006860UA
Authority
SG
Singapore
Prior art keywords
structured light
light projection
specular surfaces
specular
projection
Prior art date
Application number
SG11202006860UA
Inventor
Eric P Rudd
Carl E Haugan
Paul R Haugen
Original Assignee
Cyberoptics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cyberoptics Corp filed Critical Cyberoptics Corp
Publication of SG11202006860UA publication Critical patent/SG11202006860UA/en

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
    • 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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0608—Height gauges
    • 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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
    • 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
    • G01B11/2504—Calibration devices
    • 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
    • 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
    • G01B11/254—Projection of a pattern, viewing through a pattern, e.g. moiré
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/22—Telecentric objectives or lens systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/64—Three-dimensional objects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/246—Calibration of cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/254—Image signal generators using stereoscopic image cameras in combination with electromagnetic radiation sources for illuminating objects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
SG11202006860UA 2018-01-24 2019-01-24 Structured light projection for specular surfaces SG11202006860UA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862621317P 2018-01-24 2018-01-24
PCT/US2019/014976 WO2019147829A2 (en) 2018-01-24 2019-01-24 Structured light projection for specular surfaces

Publications (1)

Publication Number Publication Date
SG11202006860UA true SG11202006860UA (en) 2020-08-28

Family

ID=67298108

Family Applications (2)

Application Number Title Priority Date Filing Date
SG11202006860UA SG11202006860UA (en) 2018-01-24 2019-01-24 Structured light projection for specular surfaces
SG11202006968PA SG11202006968PA (en) 2018-01-24 2019-01-24 Structured light projection for specular surfaces

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG11202006968PA SG11202006968PA (en) 2018-01-24 2019-01-24 Structured light projection for specular surfaces

Country Status (6)

Country Link
US (2) US11421983B2 (en)
EP (3) EP3743763A4 (en)
KR (3) KR102328240B1 (en)
CN (2) CN111656779B (en)
SG (2) SG11202006860UA (en)
WO (2) WO2019147829A2 (en)

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US20230055268A1 (en) * 2021-08-18 2023-02-23 Meta Platforms Technologies, Llc Binary-encoded illumination for corneal glint detection

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Also Published As

Publication number Publication date
CN111656260A (en) 2020-09-11
KR102328240B1 (en) 2021-11-17
EP3744089A2 (en) 2020-12-02
CN111656779B (en) 2022-10-18
SG11202006968PA (en) 2020-08-28
KR20200109360A (en) 2020-09-22
CN111656779A (en) 2020-09-11
EP4113993A1 (en) 2023-01-04
WO2019147829A3 (en) 2019-09-19
CN111656260B (en) 2022-11-25
KR102461481B1 (en) 2022-10-31
US11421983B2 (en) 2022-08-23
KR102597197B1 (en) 2023-11-01
WO2019147834A1 (en) 2019-08-01
KR20220128453A (en) 2022-09-20
US20190226835A1 (en) 2019-07-25
US11073380B2 (en) 2021-07-27
US20190226836A1 (en) 2019-07-25
EP3743763A1 (en) 2020-12-02
EP3743763A4 (en) 2021-12-08
EP3744089A4 (en) 2021-10-20
KR20200108874A (en) 2020-09-21
WO2019147829A2 (en) 2019-08-01

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