JPS57113183A - Feature extraction system - Google Patents

Feature extraction system

Info

Publication number
JPS57113183A
JPS57113183A JP55189130A JP18913080A JPS57113183A JP S57113183 A JPS57113183 A JP S57113183A JP 55189130 A JP55189130 A JP 55189130A JP 18913080 A JP18913080 A JP 18913080A JP S57113183 A JPS57113183 A JP S57113183A
Authority
JP
Japan
Prior art keywords
character
circumscribing
polygon
generating circuit
distances
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
JP55189130A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0243220B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Yukikazu Kaburayama
Tetsuji Morishita
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.)
Computer Basic Technology Research Association Corp
Original Assignee
Computer Basic Technology Research Association 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 Computer Basic Technology Research Association Corp filed Critical Computer Basic Technology Research Association Corp
Priority to JP55189130A priority Critical patent/JPS57113183A/ja
Publication of JPS57113183A publication Critical patent/JPS57113183A/ja
Publication of JPH0243220B2 publication Critical patent/JPH0243220B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/182—Extraction of features or characteristics of the image by coding the contour of the pattern
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Discrimination (AREA)
JP55189130A 1980-12-29 1980-12-29 Feature extraction system Granted JPS57113183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55189130A JPS57113183A (en) 1980-12-29 1980-12-29 Feature extraction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55189130A JPS57113183A (en) 1980-12-29 1980-12-29 Feature extraction system

Publications (2)

Publication Number Publication Date
JPS57113183A true JPS57113183A (en) 1982-07-14
JPH0243220B2 JPH0243220B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-09-27

Family

ID=16235896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55189130A Granted JPS57113183A (en) 1980-12-29 1980-12-29 Feature extraction system

Country Status (1)

Country Link
JP (1) JPS57113183A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054094A (en) * 1990-05-07 1991-10-01 Eastman Kodak Company Rotationally impervious feature extraction for optical character recognition
JPH03223986A (ja) * 1989-12-26 1991-10-02 Fuji Facom Corp 認識結果のリジェクト方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03223986A (ja) * 1989-12-26 1991-10-02 Fuji Facom Corp 認識結果のリジェクト方法
US5054094A (en) * 1990-05-07 1991-10-01 Eastman Kodak Company Rotationally impervious feature extraction for optical character recognition

Also Published As

Publication number Publication date
JPH0243220B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-09-27

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