JPS57163808A - Shape detector - Google Patents

Shape detector

Info

Publication number
JPS57163808A
JPS57163808A JP4983581A JP4983581A JPS57163808A JP S57163808 A JPS57163808 A JP S57163808A JP 4983581 A JP4983581 A JP 4983581A JP 4983581 A JP4983581 A JP 4983581A JP S57163808 A JPS57163808 A JP S57163808A
Authority
JP
Japan
Prior art keywords
area
arithmetic
tracking
external circumference
track
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
JP4983581A
Other languages
Japanese (ja)
Other versions
JPS6363044B2 (en
Inventor
Minoru Tanaka
Kazuo Takashima
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4983581A priority Critical patent/JPS57163808A/en
Publication of JPS57163808A publication Critical patent/JPS57163808A/en
Publication of JPS6363044B2 publication Critical patent/JPS6363044B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To improve the reliability of shape detection by sending a fault signal by automatically diagnosing a stray run and a runaway in the middle of external circumference track processing after processing a data group, stored in a storage device temporarily, by local histogram arithmetic and spatial differential arithmetic. CONSTITUTION:On the basis of processing results obtained by a histogram arithmetic device 7 and a spatial differential arithmetic device 8, an external circumference track arithmetic device 9 track the external circumference shape of the front end part of a steel plate 1 to diagnose a scale, over-heated parts, etc., by self-diagnostic function 10. At a ''valley'' position of a local histogram calculated by the device 7, all data in a storage device 6 are coded into binary data. A binary-coded level found in an area, where temperature is highest and distribution is stable, in the front end part of the steel plate 1 is regarded as a minimum area for tracking, and a minimum temperature level is regarded as a maximum area for tracking. When it is judged that the device 10 has transition from a tracking area between their difference to an abnormal area, a fault signal transmitter 11 outputs a warning signal.
JP4983581A 1981-04-01 1981-04-01 Shape detector Granted JPS57163808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4983581A JPS57163808A (en) 1981-04-01 1981-04-01 Shape detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4983581A JPS57163808A (en) 1981-04-01 1981-04-01 Shape detector

Publications (2)

Publication Number Publication Date
JPS57163808A true JPS57163808A (en) 1982-10-08
JPS6363044B2 JPS6363044B2 (en) 1988-12-06

Family

ID=12842134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4983581A Granted JPS57163808A (en) 1981-04-01 1981-04-01 Shape detector

Country Status (1)

Country Link
JP (1) JPS57163808A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899296A (en) * 1987-11-13 1990-02-06 Khattak Anwar S Pavement distress survey system
US5798925A (en) * 1995-05-16 1998-08-25 L-S Electro-Galvanizing Company Method and apparatus for monitoring a moving strip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899296A (en) * 1987-11-13 1990-02-06 Khattak Anwar S Pavement distress survey system
US5798925A (en) * 1995-05-16 1998-08-25 L-S Electro-Galvanizing Company Method and apparatus for monitoring a moving strip

Also Published As

Publication number Publication date
JPS6363044B2 (en) 1988-12-06

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