JPH03131706A - Three-dimensional position measuring instrument - Google Patents

Three-dimensional position measuring instrument

Info

Publication number
JPH03131706A
JPH03131706A JP27123789A JP27123789A JPH03131706A JP H03131706 A JPH03131706 A JP H03131706A JP 27123789 A JP27123789 A JP 27123789A JP 27123789 A JP27123789 A JP 27123789A JP H03131706 A JPH03131706 A JP H03131706A
Authority
JP
Japan
Prior art keywords
slit
light
image
picked
images
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
JP27123789A
Other languages
Japanese (ja)
Other versions
JP2809348B2 (en
Inventor
Keiichi Kenmochi
Original Assignee
Mitsubishi Heavy Ind Ltd
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 Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Priority to JP1271237A priority Critical patent/JP2809348B2/en
Publication of JPH03131706A publication Critical patent/JPH03131706A/en
Application granted granted Critical
Publication of JP2809348B2 publication Critical patent/JP2809348B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To speed up processing by providing a slit light projection device which projects slit light in a space wherein an object is present and measuring the three-dimensional position of the object according to images obtained from two image pickup devices.
CONSTITUTION: Images of the object 3 are picked up by TV cameras 1 and 2 and the slit projection device 6 projects the horizontal slit light 7 to irradiate a part 8 on the object 3 with the light. In a slit-light OFF state, images are picked up by the TV cameras 1 and 2 and in a slit-light ON state, an image is picked up by the TV camera 1. A difference circuit 21 extracts a slit image and a maximum and minimum value detecting circuit 23 finds the maximum value ymax and minimum value ymin of the depth (y) of the slit image. A correspondence retrieval circuit 16 determines the range of a corresponding search on a horizontal scanning line from data on the depth ymax and ymin and a three-dimensional coordinate calculating circuit 17 calculates the coordinates.
COPYRIGHT: (C)1991,JPO&Japio
JP1271237A 1989-10-18 1989-10-18 3D position measuring device Expired - Fee Related JP2809348B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1271237A JP2809348B2 (en) 1989-10-18 1989-10-18 3D position measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1271237A JP2809348B2 (en) 1989-10-18 1989-10-18 3D position measuring device

Publications (2)

Publication Number Publication Date
JPH03131706A true JPH03131706A (en) 1991-06-05
JP2809348B2 JP2809348B2 (en) 1998-10-08

Family

ID=17497268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1271237A Expired - Fee Related JP2809348B2 (en) 1989-10-18 1989-10-18 3D position measuring device

Country Status (1)

Country Link
JP (1) JP2809348B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526640A (en) * 1991-07-25 1993-02-02 Toshiba Corp Lead shape measuring device
JP2007286048A (en) * 2006-03-23 2007-11-01 Nissan Motor Co Ltd System and method of detecting work position
JP2008185511A (en) * 2007-01-31 2008-08-14 Bridgestone Corp Tire rro measurement method and its device
JP2012093104A (en) * 2010-10-25 2012-05-17 Yaskawa Electric Corp Shape measuring device, robot system, and shape measuring method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6478104A (en) * 1987-09-19 1989-03-23 Toyota Central Res & Dev Three-dimensional coordinate measuring instrument

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6478104A (en) * 1987-09-19 1989-03-23 Toyota Central Res & Dev Three-dimensional coordinate measuring instrument

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526640A (en) * 1991-07-25 1993-02-02 Toshiba Corp Lead shape measuring device
JP2007286048A (en) * 2006-03-23 2007-11-01 Nissan Motor Co Ltd System and method of detecting work position
JP2008185511A (en) * 2007-01-31 2008-08-14 Bridgestone Corp Tire rro measurement method and its device
JP2012093104A (en) * 2010-10-25 2012-05-17 Yaskawa Electric Corp Shape measuring device, robot system, and shape measuring method

Also Published As

Publication number Publication date
JP2809348B2 (en) 1998-10-08

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees