JPS5580186A - Optical character reader - Google Patents

Optical character reader

Info

Publication number
JPS5580186A
JPS5580186A JP15541178A JP15541178A JPS5580186A JP S5580186 A JPS5580186 A JP S5580186A JP 15541178 A JP15541178 A JP 15541178A JP 15541178 A JP15541178 A JP 15541178A JP S5580186 A JPS5580186 A JP S5580186A
Authority
JP
Japan
Prior art keywords
circuit
skew
mark
line
detecting
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
JP15541178A
Other languages
Japanese (ja)
Inventor
Jo 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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15541178A priority Critical patent/JPS5580186A/en
Publication of JPS5580186A publication Critical patent/JPS5580186A/en
Pending legal-status Critical Current

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  • Character Input (AREA)

Abstract

PURPOSE: To make it possible to recognize characters on a skewed form by detecting the skew degree and segmenting characters according to this degree.
CONSTITUTION: A form is scanned by scanner 1 and is photoelectrically converted to generate a binary quantized output. This binary pattern output is stored in memory circuit 2. For the purpose of detecting the skew degree of one-page components of contents of circuit 2, contents are read out successively by mark detection circuit 3. If the skew mark and the line mark have the same form, these marks can be detected. Circuit 3 detects skew mark 71 first and skew mark 70 next and inputs detection signals to coordinate detection circuit 4. Circuit 4 inputs difference between the X address and Y address of both marks 70 and 71 to address control circuit 5. When detecting line mark 72, circuit 5 uses its X and Y addresses as initial values to generate skew addresses for segmenting of the character read line of the form. Character data for one line of circuit 2 is read out on a basis of generated addresses and is inputted to recognition circuit 6 to recognized characters.
COPYRIGHT: (C)1980,JPO&Japio
JP15541178A 1978-12-13 1978-12-13 Optical character reader Pending JPS5580186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15541178A JPS5580186A (en) 1978-12-13 1978-12-13 Optical character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15541178A JPS5580186A (en) 1978-12-13 1978-12-13 Optical character reader

Publications (1)

Publication Number Publication Date
JPS5580186A true JPS5580186A (en) 1980-06-17

Family

ID=15605392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15541178A Pending JPS5580186A (en) 1978-12-13 1978-12-13 Optical character reader

Country Status (1)

Country Link
JP (1) JPS5580186A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130165A (en) * 1981-02-02 1982-08-12 Hitachi Ltd Picture processing system
JPS5955574A (en) * 1982-09-17 1984-03-30 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Mark sheet reader
JPS6299888A (en) * 1985-10-25 1987-05-09 Toppan Moore Co Ltd Format conversion processing method between input and output paper
US4953230A (en) * 1982-02-05 1990-08-28 Ricoh Company, Ltd. Document image processing system
US5048096A (en) * 1989-12-01 1991-09-10 Eastman Kodak Company Bi-tonal image non-text matter removal with run length and connected component analysis
EP0617380A3 (en) * 1993-03-26 1995-04-26 Konishiroku Photo Ind A method of creating composite discrimination functions, a method of character recognition and a method of preprocessing in character recognition using the method of creation.
US8213687B2 (en) * 2006-04-28 2012-07-03 Hewlett-Packard Development Company, L.P. Image processing methods, image processing systems, and articles of manufacture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130165A (en) * 1981-02-02 1982-08-12 Hitachi Ltd Picture processing system
US4953230A (en) * 1982-02-05 1990-08-28 Ricoh Company, Ltd. Document image processing system
JPS5955574A (en) * 1982-09-17 1984-03-30 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Mark sheet reader
JPS6299888A (en) * 1985-10-25 1987-05-09 Toppan Moore Co Ltd Format conversion processing method between input and output paper
US5048096A (en) * 1989-12-01 1991-09-10 Eastman Kodak Company Bi-tonal image non-text matter removal with run length and connected component analysis
EP0617380A3 (en) * 1993-03-26 1995-04-26 Konishiroku Photo Ind A method of creating composite discrimination functions, a method of character recognition and a method of preprocessing in character recognition using the method of creation.
US8213687B2 (en) * 2006-04-28 2012-07-03 Hewlett-Packard Development Company, L.P. Image processing methods, image processing systems, and articles of manufacture

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