JPS57155672A - Feature extracting circuit system of 2-dimensional pattern - Google Patents

Feature extracting circuit system of 2-dimensional pattern

Info

Publication number
JPS57155672A
JPS57155672A JP56040416A JP4041681A JPS57155672A JP S57155672 A JPS57155672 A JP S57155672A JP 56040416 A JP56040416 A JP 56040416A JP 4041681 A JP4041681 A JP 4041681A JP S57155672 A JPS57155672 A JP S57155672A
Authority
JP
Japan
Prior art keywords
row
cells
column
input
features
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
JP56040416A
Other languages
Japanese (ja)
Other versions
JPH0114623B2 (en
Inventor
Azahiko Takeuchi
Koichi Yamada
Masashi Miura
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.)
Tokyo Keiki Inc
Original Assignee
Tokyo Keiki 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 Tokyo Keiki Co Ltd filed Critical Tokyo Keiki Co Ltd
Priority to JP56040416A priority Critical patent/JPS57155672A/en
Publication of JPS57155672A publication Critical patent/JPS57155672A/en
Publication of JPH0114623B2 publication Critical patent/JPH0114623B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/44—Local 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
    • G06V10/457—Local 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)
  • Image Analysis (AREA)
  • Character Discrimination (AREA)

Abstract

PURPOSE:To realize a high-speed processing of the feature extraction, the integration of a device and a low price respectively, by extracting the features of an input graphic pattern by piling the bit array patterns to the cell array for each row or column and with every input. CONSTITUTION:The cells CE0-CEn having exactly same structure extract the features of an input graphic pattern by piling the bit array patterns onto the array of the said cells for each row or column and with every input. Plural units of these cells are used to be distributed in a 1-dimensional way to the row or column. Thus the extraction of features is carried out at a time for the shape and position of the character graphic contour line for an input pattern for each row or column. Furthermore, the cells CE0-CEn are distributed in 2-dimentional way in terms of the row and column to increase the speed for extraction of features. Then the integration is facilitated by unifying the structures of the cells E0-En.
JP56040416A 1981-03-23 1981-03-23 Feature extracting circuit system of 2-dimensional pattern Granted JPS57155672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56040416A JPS57155672A (en) 1981-03-23 1981-03-23 Feature extracting circuit system of 2-dimensional pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56040416A JPS57155672A (en) 1981-03-23 1981-03-23 Feature extracting circuit system of 2-dimensional pattern

Publications (2)

Publication Number Publication Date
JPS57155672A true JPS57155672A (en) 1982-09-25
JPH0114623B2 JPH0114623B2 (en) 1989-03-13

Family

ID=12580050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56040416A Granted JPS57155672A (en) 1981-03-23 1981-03-23 Feature extracting circuit system of 2-dimensional pattern

Country Status (1)

Country Link
JP (1) JPS57155672A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192164A (en) * 1982-05-04 1983-11-09 Hitachi Ltd Device for recognizing object
JPS58203571A (en) * 1982-05-21 1983-11-28 Hitachi Ltd Device for forming picture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192164A (en) * 1982-05-04 1983-11-09 Hitachi Ltd Device for recognizing object
JPS58203571A (en) * 1982-05-21 1983-11-28 Hitachi Ltd Device for forming picture

Also Published As

Publication number Publication date
JPH0114623B2 (en) 1989-03-13

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