CA2305057A1 - Optical 3d digitizer, system and method for digitizing an object - Google Patents

Optical 3d digitizer, system and method for digitizing an object Download PDF

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Publication number
CA2305057A1
CA2305057A1 CA002305057A CA2305057A CA2305057A1 CA 2305057 A1 CA2305057 A1 CA 2305057A1 CA 002305057 A CA002305057 A CA 002305057A CA 2305057 A CA2305057 A CA 2305057A CA 2305057 A1 CA2305057 A1 CA 2305057A1
Authority
CA
Canada
Prior art keywords
projection lens
white light
cameras
digitizer
digitizing
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.)
Granted
Application number
CA002305057A
Other languages
French (fr)
Other versions
CA2305057C (en
Inventor
Li Song
Yvan Bourassa
Dominique Beauchamp
Guylain Lemelin
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.)
Creaform Inc
Original Assignee
Inspeck Inc
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
Priority claimed from CA002267519A external-priority patent/CA2267519A1/en
Application filed by Inspeck Inc filed Critical Inspeck Inc
Priority to CA002305057A priority Critical patent/CA2305057C/en
Publication of CA2305057A1 publication Critical patent/CA2305057A1/en
Application granted granted Critical
Publication of CA2305057C publication Critical patent/CA2305057C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H04N13/239—Image signal generators using stereoscopic image cameras using two 2D image sensors having a relative position equal to or related to the interocular distance
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

An optical 3D digitizer for digitizing an object, comprises a white light source producing white light, a projection lens projecting the white light toward the object whereby the object has a fully illuminated side, a grating device producing a fringe pattern in the light projected by the projection lens, and first and second cameras positioned aside from the projection lens and aligned in angled directions with respect to each other so that the cameras have complementary fields of view directed on the illuminated side of the object and partially overlapping with each other over a depth of measurement of the object. The cameras have respective video outputs to produce video signals representing complementary images of the object with a common image portion as a result of the fields of view being partially overlapping.
CA002305057A 1999-04-13 2000-04-11 Optical 3d digitizer, system and method for digitizing an object Expired - Lifetime CA2305057C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002305057A CA2305057C (en) 1999-04-13 2000-04-11 Optical 3d digitizer, system and method for digitizing an object

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2,267,519 1999-04-13
CA002267519A CA2267519A1 (en) 1999-04-13 1999-04-13 Optical full human body 3d digitizer
CA002305057A CA2305057C (en) 1999-04-13 2000-04-11 Optical 3d digitizer, system and method for digitizing an object

Publications (2)

Publication Number Publication Date
CA2305057A1 true CA2305057A1 (en) 2000-10-13
CA2305057C CA2305057C (en) 2004-09-21

Family

ID=25680867

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002305057A Expired - Lifetime CA2305057C (en) 1999-04-13 2000-04-11 Optical 3d digitizer, system and method for digitizing an object

Country Status (1)

Country Link
CA (1) CA2305057C (en)

Also Published As

Publication number Publication date
CA2305057C (en) 2004-09-21

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Effective date: 20200411