US Patent No: 4,803,645

Number of patents in Portfolio can not be more than 2000

Method and apparatus for measuring coordinates

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Abstract

A coordinates measuring method in which the image information of the same point are derived as first, second and third information when viewed from at least three different directions, a first corresponding point is determined by deriving the correlation between the first and second information, and a second corresponding point is determined by deriving the correlation between the second and third information, and mismatching is decided when the first and second coordinates are not substantially coincident with each other.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TOKYO KOGAKU KIKAI KABUSHIKI KAISHATOKYO131

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ohtomo, Fumio Tokyo, JP 211 1688
Otani, Hitoshi Tokyo, JP 88 271

Cited Art

Patent Info (Count) # Cites Year
 
CARL-ZEISS-STIFTUNG (1)
4,660,970 Method and apparatus for the contact-less measuring of objects 113 1984
 
HITACHI, LTD. (1)
4,343,553 Shape testing apparatus 41 1980
 
LMI TECHNOLOGIES INC. (1)
4,674,869 Method and apparatus for electro-optically determining dimension, location and altitude of objects 58 1985
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
4,688,184 System for measuring three-dimensional coordinates 14 1985
 
OMRON TATEISI ELECTRONICS CO. (1)
4,654,872 System for recognizing three-dimensional objects 61 1984
 
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA (1)
4,573,191 Stereoscopic vision system 78 1984
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
4,412,799 Apparatus and method for stereo relief modeling 12 1981
4,630,203 Contour radiography: a system for determining 3-dimensional contours of an object from its 2-dimensional images 64 1983

Patent Citation Ranking

Forward Cites

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SAINT LOUIS UNIVERSITY (8)
5,891,034 System for indicating the position of a surgical probe within a head on an image of the head 250 1995
5,871,445 System for indicating the position of a surgical probe within a head on an image of the head 205 1995
5,851,183 System for indicating the position of a surgical probe within a head on an image of the head 246 1995
6,463,319 System for indicating the position of a surgical probe within a head on an image of the head 7 1998
6,076,008 System for indicating the position of a surgical probe within a head on an image of the head 120 1999
6,374,135 System for indicating the position of a surgical probe within a head on an image of the head 17 1999
7,072,704 System for indicating the position of a surgical probe within a head on an image of the head 30 2002
6,678,545 System for determining the position in a scan image corresponding to the position of an imaging probe 8 2002
 
SURGICAL NAVIGATION TECHNOLOGIES, INC. (7)
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6,347,240 System and method for use in displaying images of a body part 54 1997
6,490,467 Surgical navigation systems including reference and localization frames 102 1998
6,434,415 System for use in displaying images of a body part 96 1999
7,139,601 Surgical navigation systems including reference and localization frames 51 2001
6,978,166 System for use in displaying images of a body part 29 2002
 
CANON KABUSHIKI KAISHA (3)
6,668,082 Image processing apparatus 52 1998
6,647,146 Image processing apparatus 17 1998
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ALCOA INC. (2)
5,293,687 Wheel manufacturing method 3 1993
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OMRON CORPORATION (2)
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SOFAMOR DANEK HOLDINGS, INC. (2)
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CREAFORM INC. (1)
6,493,095 Optional 3D digitizer, system and method for digitizing an object 19 2000
 
GENERAL ELECTRIC COMPANY (1)
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RE35816 Method and apparatus for three-dimensional non-contact shape sensing 145 1995
 
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MATRIX ELECTRONIC MEASURING PROPERTIES, LLC (1)
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8,090,195 Compound eye imaging apparatus, distance measuring apparatus, disparity calculation method, and distance measuring method 0 2009
 
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
8,046,053 System and method for modifying images of a body part 0 2005