JPS5793484A - Recognizing and processing system of character-string - Google Patents

Recognizing and processing system of character-string

Info

Publication number
JPS5793484A
JPS5793484A JP55169295A JP16929580A JPS5793484A JP S5793484 A JPS5793484 A JP S5793484A JP 55169295 A JP55169295 A JP 55169295A JP 16929580 A JP16929580 A JP 16929580A JP S5793484 A JPS5793484 A JP S5793484A
Authority
JP
Japan
Prior art keywords
character
string
line interval
conversion
processing
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
JP55169295A
Other languages
Japanese (ja)
Other versions
JPS6246038B2 (en
Inventor
Masahiko Hase
Hiroyuki Hoshino
Atsushi Otani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55169295A priority Critical patent/JPS5793484A/en
Publication of JPS5793484A publication Critical patent/JPS5793484A/en
Publication of JPS6246038B2 publication Critical patent/JPS6246038B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06V30/186—Extraction of features or characteristics of the image by deriving mathematical or geometrical properties from the whole image
    • G06V30/187—Frequency domain transformation; Autocorrelation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)

Abstract

PURPOSE:To recognize a character-string stably, by executing a spatial two- dimensional Fourier conversion to variable density information of a picture. CONSTITUTION:An input picture 5 is scanned by a scanner 6 like a TV camera, its signal is digitized in a pre-processing part 7, and pre-processing such as conversion of density, a digital filtering, etc. is executed. After that, its conversion processing is executed in a two-dimensional Fourier conversion processing part 8, the first peak being in the vicinity of the original point is detected in the space which has been Fourier-converted, in a line interval recognition part 9, and the line interval is derived. Subsequently, when the line interval is scanned in a line interval scanning part 10 and an area in which a character-string is present is detected, the character-string is recognized by a character-string recognition part 11.
JP55169295A 1980-12-01 1980-12-01 Recognizing and processing system of character-string Granted JPS5793484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55169295A JPS5793484A (en) 1980-12-01 1980-12-01 Recognizing and processing system of character-string

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55169295A JPS5793484A (en) 1980-12-01 1980-12-01 Recognizing and processing system of character-string

Publications (2)

Publication Number Publication Date
JPS5793484A true JPS5793484A (en) 1982-06-10
JPS6246038B2 JPS6246038B2 (en) 1987-09-30

Family

ID=15883865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55169295A Granted JPS5793484A (en) 1980-12-01 1980-12-01 Recognizing and processing system of character-string

Country Status (1)

Country Link
JP (1) JPS5793484A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827278A (en) * 1981-08-10 1983-02-17 Toshiba Corp Line searching system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827278A (en) * 1981-08-10 1983-02-17 Toshiba Corp Line searching system

Also Published As

Publication number Publication date
JPS6246038B2 (en) 1987-09-30

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