JPS56143089A - Optical character reader - Google Patents

Optical character reader

Info

Publication number
JPS56143089A
JPS56143089A JP4447180A JP4447180A JPS56143089A JP S56143089 A JPS56143089 A JP S56143089A JP 4447180 A JP4447180 A JP 4447180A JP 4447180 A JP4447180 A JP 4447180A JP S56143089 A JPS56143089 A JP S56143089A
Authority
JP
Japan
Prior art keywords
section
character
document
read
type
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
JP4447180A
Other languages
Japanese (ja)
Inventor
Haruo Mizukami
Masataka 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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4447180A priority Critical patent/JPS56143089A/en
Publication of JPS56143089A publication Critical patent/JPS56143089A/en
Pending 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
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • 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)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)

Abstract

PURPOSE:To increase the read-accuracy of character printed or described on the document, by the binarization with different binary system depending on the subset of characters and making the identification of the characters after that. CONSTITUTION:The document 1 is scanned and in photoelectric conversion at the scanning section 4, the video signal from the section 4 is binarized at the preprocessing section 5 and identified for the type of character at the identification section 6, and the control section 7 makes entire control. When the character printed or described in the read-in area of the document 1 is read in, it is scanned at the scanning section 4 and converted into video signal. When the preprocessing section 5 produces binary character pattern from this signal, it receives the information relating to the document from the section 7 and makes binarization in the binary system for English letter, allowing to judge the type of character at the section 6. Further, when the character printed or described in the read-in area 3 is readout, it similarly receives the information relating to the document from the section 7 to make binary with the binary system for numerals, allowing to judge the type of character.
JP4447180A 1980-04-04 1980-04-04 Optical character reader Pending JPS56143089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4447180A JPS56143089A (en) 1980-04-04 1980-04-04 Optical character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4447180A JPS56143089A (en) 1980-04-04 1980-04-04 Optical character reader

Publications (1)

Publication Number Publication Date
JPS56143089A true JPS56143089A (en) 1981-11-07

Family

ID=12692421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4447180A Pending JPS56143089A (en) 1980-04-04 1980-04-04 Optical character reader

Country Status (1)

Country Link
JP (1) JPS56143089A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125936A (en) * 1974-08-28 1976-03-03 Oki Electric Ind Co Ltd
JPS54149525A (en) * 1978-05-17 1979-11-22 Oki Electric Ind Co Ltd Graphic input device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125936A (en) * 1974-08-28 1976-03-03 Oki Electric Ind Co Ltd
JPS54149525A (en) * 1978-05-17 1979-11-22 Oki Electric Ind Co Ltd Graphic input device

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