JPS57184908A - Shape detector - Google Patents

Shape detector

Info

Publication number
JPS57184908A
JPS57184908A JP6954881A JP6954881A JPS57184908A JP S57184908 A JPS57184908 A JP S57184908A JP 6954881 A JP6954881 A JP 6954881A JP 6954881 A JP6954881 A JP 6954881A JP S57184908 A JPS57184908 A JP S57184908A
Authority
JP
Japan
Prior art keywords
comparators
inputted
find
shape
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.)
Granted
Application number
JP6954881A
Other languages
Japanese (ja)
Other versions
JPH0359362B2 (en
Inventor
Masaaki Ishizaka
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.)
JIDO KEISOKU GIJUTSU KENKIYUUKUMIAI
JIDOU KEISOKU GIJUTSU KENKIYUU
JIDOU KEISOKU GIJUTSU KENKIYUUKUMIAI
Original Assignee
JIDO KEISOKU GIJUTSU KENKIYUUKUMIAI
JIDOU KEISOKU GIJUTSU KENKIYUU
JIDOU KEISOKU GIJUTSU KENKIYUUKUMIAI
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 JIDO KEISOKU GIJUTSU KENKIYUUKUMIAI, JIDOU KEISOKU GIJUTSU KENKIYUU, JIDOU KEISOKU GIJUTSU KENKIYUUKUMIAI filed Critical JIDO KEISOKU GIJUTSU KENKIYUUKUMIAI
Priority to JP6954881A priority Critical patent/JPS57184908A/en
Publication of JPS57184908A publication Critical patent/JPS57184908A/en
Publication of JPH0359362B2 publication Critical patent/JPH0359362B2/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)

Abstract

PURPOSE:To perform an easy and reliable inspection of a shape, by a method wherein an image signal is sampled at each picture element to find a difference between image data having a distance of at least 2 picture elements and being different in direction, and the result is compared with a positive or a negative threshold. CONSTITUTION:An image signal from a TV camera is inputted through an AD converter 5 to shift resistors 6, 8, and 10 and shift resistors 7 and 9 storing data for 2 scanning lines of the TV camera 4 to find a difference between image data having a distance of 2 picture elements through the working of subtractors 11- 14, and the output data are inputted to comparators 15-22. The results are compared with a positive or a negative threshold by comparators 15, 17, 19, 21 and 16, 18, 20, 22, the outputs are logical-summed by gate circuits 23 and 24, they are stored in a memory 25 by means of an address signal and clock signal generated by a clock control circuit 7, the pattern and an exclusive-OR of a standard pattern from a memory 26 are obtained by a gate circuit 29 and added and evaluated by an adder 30, and this performs an easy and accurate inspection of a shape.
JP6954881A 1981-05-08 1981-05-08 Shape detector Granted JPS57184908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6954881A JPS57184908A (en) 1981-05-08 1981-05-08 Shape detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6954881A JPS57184908A (en) 1981-05-08 1981-05-08 Shape detector

Publications (2)

Publication Number Publication Date
JPS57184908A true JPS57184908A (en) 1982-11-13
JPH0359362B2 JPH0359362B2 (en) 1991-09-10

Family

ID=13405877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6954881A Granted JPS57184908A (en) 1981-05-08 1981-05-08 Shape detector

Country Status (1)

Country Link
JP (1) JPS57184908A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999203A (en) * 1982-11-18 1984-06-07 Matsushita Electric Ind Co Ltd Stepped point detecting method by optical range finder
JPS60113510U (en) * 1984-01-06 1985-08-01 パイオニア株式会社 Physical quantity change detection device
JPS61102507A (en) * 1984-10-26 1986-05-21 Amada Co Ltd Measurement inspection system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999203A (en) * 1982-11-18 1984-06-07 Matsushita Electric Ind Co Ltd Stepped point detecting method by optical range finder
JPS60113510U (en) * 1984-01-06 1985-08-01 パイオニア株式会社 Physical quantity change detection device
JPS61102507A (en) * 1984-10-26 1986-05-21 Amada Co Ltd Measurement inspection system

Also Published As

Publication number Publication date
JPH0359362B2 (en) 1991-09-10

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