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WO2010046759A3 - 3d object motion tracking and locating system by means of synchronised light emitters with a stereoscopic vision system - Google Patents

3d object motion tracking and locating system by means of synchronised light emitters with a stereoscopic vision system Download PDF

Info

Publication number
WO2010046759A3
WO2010046759A3 PCT/IB2009/007186 IB2009007186W WO2010046759A3 WO 2010046759 A3 WO2010046759 A3 WO 2010046759A3 IB 2009007186 W IB2009007186 W IB 2009007186W WO 2010046759 A3 WO2010046759 A3 WO 2010046759A3
Authority
WO
WIPO (PCT)
Prior art keywords
light emitters
stereoscopic vision
synchronised
cameras
intensity
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
Application number
PCT/IB2009/007186
Other languages
French (fr)
Portuguese (pt)
Other versions
WO2010046759A2 (en
WO2010046759A4 (en
Inventor
Paulo José CERQUEIRA GOMES DA COSTA
Paulo Sergio Lima Malheiros
António Paulo GOMES MENDES MOREIRA
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.)
Universidade do Porto
Original Assignee
Universidade do Porto
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 Universidade do Porto filed Critical Universidade do Porto
Publication of WO2010046759A2 publication Critical patent/WO2010046759A2/en
Publication of WO2010046759A3 publication Critical patent/WO2010046759A3/en
Publication of WO2010046759A4 publication Critical patent/WO2010046759A4/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/781—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The present invention describes a system for tracking (6) motion (7), making it easier to detect objects (9, 10) in space by means of artificial stereoscopic vision, using high-intensity, visible light emitters (8) synchronised with the stereoscopic vision system, at least two cameras (3, 4, 5) connected to a computer. A synchronisation module (2) controls the activation time of the light emitters (8), ensuring that all cameras (3, 4, 5) acquire at this time simultaneously. The use of high-intensity light emitters (8) synchronised with the cameras differentiates the light emitters from the surroundings, rendering the system robust, and since the light emitters need be turned on only for short periods of time, the apparent intensity is very low and they cause no interference with the users (9) of the system. The use of light emitters with various colours of the visible spectrum makes detection easy, preventing uncertainties and enhancing reliability.
PCT/IB2009/007186 2008-10-21 2009-10-21 3d object motion tracking and locating system by means of synchronised light emitters with a stereoscopic vision system Ceased WO2010046759A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT104224 2008-10-21
PT10422408A PT104224B (en) 2008-10-21 2008-10-21 SYSTEM OF MOTION CAPTURE AND LOCATION OF OBJECTS TRAVELING TO COLORED AND PULSED LIGHT SENSORS WITH STEREOSCOPIC VISION SYSTEM

Publications (3)

Publication Number Publication Date
WO2010046759A2 WO2010046759A2 (en) 2010-04-29
WO2010046759A3 true WO2010046759A3 (en) 2010-08-26
WO2010046759A4 WO2010046759A4 (en) 2010-10-28

Family

ID=42119754

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/007186 Ceased WO2010046759A2 (en) 2008-10-21 2009-10-21 3d object motion tracking and locating system by means of synchronised light emitters with a stereoscopic vision system

Country Status (2)

Country Link
PT (1) PT104224B (en)
WO (1) WO2010046759A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917412A (en) * 1972-04-11 1975-11-04 Us Navy Advanced helmet tracker using lateral photodetection and light-emitting diodes
US4649504A (en) * 1984-05-22 1987-03-10 Cae Electronics, Ltd. Optical position and orientation measurement techniques
US20060011805A1 (en) * 2002-06-13 2006-01-19 Bernd Spruck Method and device for recording the position of an object in space

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2326642C (en) 1998-04-03 2008-06-17 Image Guided Technologies, Inc. Wireless optical instrument for position measurement and method of use therefor
JP2003035515A (en) 2001-07-23 2003-02-07 Nippon Telegr & Teleph Corp <Ntt> Three-dimensional position detection method and apparatus, and marker for three-dimensional position detection
JP2004045321A (en) 2002-07-15 2004-02-12 Mitsubishi Electric Corp Position measurement system
JP3779308B2 (en) 2004-07-21 2006-05-24 独立行政法人科学技術振興機構 Camera calibration system and three-dimensional measurement system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917412A (en) * 1972-04-11 1975-11-04 Us Navy Advanced helmet tracker using lateral photodetection and light-emitting diodes
US4649504A (en) * 1984-05-22 1987-03-10 Cae Electronics, Ltd. Optical position and orientation measurement techniques
US20060011805A1 (en) * 2002-06-13 2006-01-19 Bernd Spruck Method and device for recording the position of an object in space

Also Published As

Publication number Publication date
PT104224A (en) 2010-04-21
WO2010046759A2 (en) 2010-04-29
WO2010046759A4 (en) 2010-10-28
PT104224B (en) 2010-12-27

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