JPS57187761A - Pattern extraction method - Google Patents

Pattern extraction method

Info

Publication number
JPS57187761A
JPS57187761A JP56071878A JP7187881A JPS57187761A JP S57187761 A JPS57187761 A JP S57187761A JP 56071878 A JP56071878 A JP 56071878A JP 7187881 A JP7187881 A JP 7187881A JP S57187761 A JPS57187761 A JP S57187761A
Authority
JP
Japan
Prior art keywords
picture
storage part
processor
coordinate
black
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
JP56071878A
Other languages
Japanese (ja)
Inventor
Shuji Tsuji
Morio Yuasa
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP56071878A priority Critical patent/JPS57187761A/en
Publication of JPS57187761A publication Critical patent/JPS57187761A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/40Extraction of image or video features
    • G06V10/44Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • G06V10/457Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by analysing connectivity, e.g. edge linking, connected component analysis or slices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Image Analysis (AREA)

Abstract

PURPOSE:To make storing of picture signals of all coordinate unnecessary to extract easily a pattern in the inside white picture part, which is surrounded with an outside black part, with a small-capacity storage part, by calculating boundary point coordinates and areas for every point or every line. CONSTITUTION:The picture surface is scanned in every line by a read line sensor 1 to output a picture signal corresponding to white and black of the pattern on the picture surface, and the analogue signal is made binary by a binary circuit 2 and is supplied to a picture processor 3 through a data bus. A read pulse is supplied from an oscillator 4 to not only the processor 3 but also an X-axis coordinate counter 5 for the calculation of a current point coordinate value, and the carry signal of the counter 5 is inputted to a Y-axis coordinate counter 6. Outputs of counters 5 and 6 are inputted to the processor 3, and the directional linkage of black and white bits of the input picture is discriminated in the processor 3 on a basis of the control of a program part 7, and required data are stored in a component storage part 8, an area storage part 9, a color storage part 10, and an outside coordinate storage part 11 respectively on a basis of the discrimination result.
JP56071878A 1981-05-12 1981-05-12 Pattern extraction method Pending JPS57187761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56071878A JPS57187761A (en) 1981-05-12 1981-05-12 Pattern extraction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56071878A JPS57187761A (en) 1981-05-12 1981-05-12 Pattern extraction method

Publications (1)

Publication Number Publication Date
JPS57187761A true JPS57187761A (en) 1982-11-18

Family

ID=13473209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56071878A Pending JPS57187761A (en) 1981-05-12 1981-05-12 Pattern extraction method

Country Status (1)

Country Link
JP (1) JPS57187761A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102691A (en) * 1983-11-09 1985-06-06 株式会社安川電機 Crt graphic display unit
US4561061A (en) * 1981-04-06 1985-12-24 Dainippon Screen Mfg. Co., Ltd. Method of tracing/recording image lines and apparatus therefor
JPS63208328A (en) * 1987-02-24 1988-08-29 Mitsubishi Electric Corp Transmitting and receiving circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561061A (en) * 1981-04-06 1985-12-24 Dainippon Screen Mfg. Co., Ltd. Method of tracing/recording image lines and apparatus therefor
JPS60102691A (en) * 1983-11-09 1985-06-06 株式会社安川電機 Crt graphic display unit
JPS63208328A (en) * 1987-02-24 1988-08-29 Mitsubishi Electric Corp Transmitting and receiving circuit

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