JPS57162076A - Linear graph recognizing system - Google Patents

Linear graph recognizing system

Info

Publication number
JPS57162076A
JPS57162076A JP56047984A JP4798481A JPS57162076A JP S57162076 A JPS57162076 A JP S57162076A JP 56047984 A JP56047984 A JP 56047984A JP 4798481 A JP4798481 A JP 4798481A JP S57162076 A JPS57162076 A JP S57162076A
Authority
JP
Japan
Prior art keywords
symbol
template
information
intersections
linear graph
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
JP56047984A
Other languages
Japanese (ja)
Other versions
JPS648870B2 (en
Inventor
Hiroaki Harada
Mitsuo Ishii
Masashige Yamamoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56047984A priority Critical patent/JPS57162076A/en
Publication of JPS57162076A publication Critical patent/JPS57162076A/en
Publication of JPS648870B2 publication Critical patent/JPS648870B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • Image Analysis (AREA)

Abstract

PURPOSE:To extract the straight line, the peculiar point and the symbol, by carrying out a process to a binary picture of the linear graph obtained through a photoelectric conversion. CONSTITUTION:The data of an original picture comprising the binary signals read out of a photoelectric transducer is stored in an original picture memeory M1. At the same time, the information on the segment intersections, etc. and the information on the contour line of the symbol, etc. are stored in a connection information memory M2 and a form information memory M3 respectively. Furthermore, a template showing the form of the symbol is previously registered in a template memory M4. On the other hand, a segment deciding circuit PR1 decides whether a sensor is tracing on a signal line, and a feature extracting circuit PR2 classifies the intersections or symbols the sensor encounters and compares the symbol with the template to recognize the symbol. In such a way, the straight line, the peculiar point and the symbol can be extracted.
JP56047984A 1981-03-31 1981-03-31 Linear graph recognizing system Granted JPS57162076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56047984A JPS57162076A (en) 1981-03-31 1981-03-31 Linear graph recognizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56047984A JPS57162076A (en) 1981-03-31 1981-03-31 Linear graph recognizing system

Publications (2)

Publication Number Publication Date
JPS57162076A true JPS57162076A (en) 1982-10-05
JPS648870B2 JPS648870B2 (en) 1989-02-15

Family

ID=12790573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56047984A Granted JPS57162076A (en) 1981-03-31 1981-03-31 Linear graph recognizing system

Country Status (1)

Country Link
JP (1) JPS57162076A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0330165U (en) * 1989-07-25 1991-03-25

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5616272A (en) * 1979-07-18 1981-02-17 Fujitsu Ltd Recognition system of circuit information

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5616272A (en) * 1979-07-18 1981-02-17 Fujitsu Ltd Recognition system of circuit information

Also Published As

Publication number Publication date
JPS648870B2 (en) 1989-02-15

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