Methods and system for measuring three dimensional spatial coordinates and for external camera calibration necessary for that measurement

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6256099
SERIAL NO

09426319

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to methods and system for measuring three dimensional spatial coordinates and for external camera calibration necessary for that measurement. A simple pattern of light is projected onto a surface and used as a photogrammetric target. Images of the simple pattern are captured by two or more cameras, and processed by a computer provided with software using conventional algorithms to identify homologous points. Either, these points are used to calculate the external calibration of the cameras, or they are used in conjunction with previously calculated external camera calibration in order to calculate three dimensional spatial coordinates on the surface of an object to be measured.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INDUSTRIAL METRICS INC., THENORTH VANCOUVER BC, CA0

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chow, Jeffrey Brian 230 E 56th Ave, Vancouver, B.C., CA 1 16
James, Robert Newton 2060 Bellwood, Burnaby, B.C., CA 1 16
Kaufman, Frederick 1937 Pendrell Str., Suite 403, Vancouver, B.C., CA 1 16
Lang, Curtis Earle late of North Vancouver, CA 1 16

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 5886767 Keratometry system and method for measuring physical parameters of the cornea 40 1996
 
GENERAL ELECTRIC COMPANY (1)
* 5589942 Real time three dimensional sensing system 48 1990
 
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC (1)
* 5852672 Image system for three dimensional, 360 DEGREE, time sequence surface mapping of moving objects 161 1997
 
MECHANICAL TECHNOLOGY INCORPORATED (1)
* 5193120 Machine vision three dimensional profiling system 82 1991
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Mapvision Oy Ltd. (1)
* 7324712 Quality factor 0 2002
 
Other [Check patent profile for assignment information] (2)
* 7463280 Digital 3D/360 degree camera system 19 2003
* 2004/0246,333 Digital 3D/360 degree camera system 14 2003
 
ISRA VISION AG (1)
7602507 Sensor for measuring the surface of an object 2 2005
 
RENISHAW PLC (7)
8923603 Non-contact measurement apparatus and method 1 2008
8805055 Non-contact measurement apparatus and method 0 2008
8792707 Phase analysis measurement apparatus and method 0 2008
8605983 Non-contact probe 2 2008
* 2010/0158,322 PHASE ANALYSIS MEASUREMENT APPARATUS AND METHOD 2 2008
9329030 Non-contact object inspection 0 2010
RE46012 Non-contact probe 0 2014
 
MINOLTA CO., LTD. (2)
* 6853458 Three-dimensional measuring method and device, and computer program 11 2002
* 2003/0026,475 Three-dimensional measuring method and device, and computer program 5 2002
 
STRIDER LABS, INC. (2)
7103212 Acquisition of three-dimensional images by an active stereo technique using locally unique patterns 47 2003
* 2004/0105,580 Acquisition of three-dimensional images by an active stereo technique using locally unique patterns 29 2003
 
Xsense Technology Corp. (2)
* 6922207 3-dimension scanning method and 3-dimension scanning system using the same 0 2004
* 2004/0179,095 3-Dimension scanning metohod and 3-dimension scanning system using the same 0 2004
 
Raydon Corporation (2)
* 2007/0152,157 Simulation arena entity tracking system 4 2006
* 2008/0306,708 SYSTEM AND METHOD FOR ORIENTATION AND LOCATION CALIBRATION FOR IMAGE SENSORS 10 2008
 
GEODETIC SERVICES, INC. (2)
* 6826299 Photogrammetric image correlation and measurement system and method 13 2001
* 2002/0136,444 Photogrammetric image correlation and measurement system and method 4 2001
 
MAPVISION OY (1)
* 2004/0145,732 Method for indicating a point in a measurement space 0 2004
 
THE OHIO WILLOW WOOD COMPANY (1)
7447558 Apparatus for determining a three dimensional shape of an object 15 2005
 
DELTA ELECTRONICS, INC. (1)
* 2014/0168,386 PROJECTION SYSTEM AND PROJECTION METHOD THEREOF 0 2013
 
RESTORATION ROBOTICS, INC. (2)
9188973 Calibration and transformation of a camera system's coordinate system 3 2011
9542743 Calibration and transformation of a camera system's coordinate system 0 2015
* Cited By Examiner