JPS57168384A - Detecting method for shape of object - Google Patents

Detecting method for shape of object

Info

Publication number
JPS57168384A
JPS57168384A JP56051845A JP5184581A JPS57168384A JP S57168384 A JPS57168384 A JP S57168384A JP 56051845 A JP56051845 A JP 56051845A JP 5184581 A JP5184581 A JP 5184581A JP S57168384 A JPS57168384 A JP S57168384A
Authority
JP
Japan
Prior art keywords
slit
shape
mirror
reflected
camera
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.)
Pending
Application number
JP56051845A
Other languages
Japanese (ja)
Inventor
Kinichi Tamura
Hiroshi Kuriyama
Keiji Hideshima
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP56051845A priority Critical patent/JPS57168384A/en
Publication of JPS57168384A publication Critical patent/JPS57168384A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/64—Three-dimensional objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
  • Image Input (AREA)

Abstract

PURPOSE:To detect the shape of an object with a simple constitution, by irradiating an object with a slit light and receiving a reflected slit light with a pickup means having a constant angle to the irradiation direction, and obtaining sequentially the profile image of cross-sectional shape of the object corresponding to the scanning position. CONSTITUTION:A laser from a laser source is taken as a slit beam with a slit plate 1, this slit beam is reflected with a front mirror surface 2a of a both-side mirror 2 and irradiated on an object 4 on a measuring stand 3. Further, an incident beam axis of a TV camera 5 is diffracted with a back mirror surface 2b of the mirror 2 and a mirror 6 is located so as to make the pickup direction have an angle theta to the irradiating direction of the slit beam to the object 4. The slit beam reflected on the object 4 is picked up at the TV camera 5, the picture picked up is processed at a data processing circuit, a profile image 7 to the reference line is sequentially obtained according to the cross-sectional shape of the object 4 corresponding to the scanned position, and the detection of shape can be made with a simple constitution.
JP56051845A 1981-04-08 1981-04-08 Detecting method for shape of object Pending JPS57168384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56051845A JPS57168384A (en) 1981-04-08 1981-04-08 Detecting method for shape of object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56051845A JPS57168384A (en) 1981-04-08 1981-04-08 Detecting method for shape of object

Publications (1)

Publication Number Publication Date
JPS57168384A true JPS57168384A (en) 1982-10-16

Family

ID=12898183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56051845A Pending JPS57168384A (en) 1981-04-08 1981-04-08 Detecting method for shape of object

Country Status (1)

Country Link
JP (1) JPS57168384A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6015780A (en) * 1983-07-08 1985-01-26 Hitachi Ltd Robot
JPS6143381A (en) * 1984-08-08 1986-03-01 Nec Corp Picture input device
JPS61278981A (en) * 1985-05-31 1986-12-09 Omron Tateisi Electronics Co Device for recognizing three-dimensional body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6015780A (en) * 1983-07-08 1985-01-26 Hitachi Ltd Robot
JPH0425583B2 (en) * 1983-07-08 1992-05-01 Hitachi Ltd
JPS6143381A (en) * 1984-08-08 1986-03-01 Nec Corp Picture input device
JPS61278981A (en) * 1985-05-31 1986-12-09 Omron Tateisi Electronics Co Device for recognizing three-dimensional body

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