CA930866A - Video-derived segmentation-gating apparatus for optical character recognition - Google Patents

Video-derived segmentation-gating apparatus for optical character recognition

Info

Publication number: CA930866A
Authority: CA; Canada
Prior art keywords: video; character recognition; optical character; gating apparatus; segmentation
Prior art date: 1970-09-25
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.): Expired

Application number

CA122732A

Other languages

English (en)

Other versions

CA122732S (en

Inventor

L. Lovgren Jeffrey

J. Baumgartner Richard

W. Mccullough John

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.)

International Business Machines Corp

Original Assignee

International Business Machines 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.)

1970-09-25

Filing date

1971-09-14

Publication date

1973-07-24

1971-09-14 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1973-07-24 Application granted granted Critical

1973-07-24 Publication of CA930866A publication Critical patent/CA930866A/en

Status Expired 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
- G06V30/14—Image acquisition
- G06V30/148—Segmentation of character regions
- 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 Input (AREA)

CA122732A 1970-09-25 1971-09-14 Video-derived segmentation-gating apparatus for optical character recognition Expired CA930866A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US7551370A	1970-09-25	1970-09-25

Publications (1)

Publication Number	Publication Date
CA930866A true CA930866A (en)	1973-07-24

Family

ID=22126261

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA122732A Expired CA930866A (en)	1970-09-25	1971-09-14	Video-derived segmentation-gating apparatus for optical character recognition

Country Status (7)

Country	Link
US (1)	US3662341A (de)
JP (1)	JPS514888B1 (de)
CA (1)	CA930866A (de)
CH (1)	CH529385A (de)
DE (1)	DE2146497C3 (de)
FR (1)	FR2105823A5 (de)
GB (1)	GB1337159A (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2211814B1 (de) *	1972-12-26	1976-06-25	Ibm
US3918049A (en) *	1972-12-26	1975-11-04	Ibm	Thresholder for analog signals
US4206442A (en) *	1974-07-03	1980-06-03	Nippon Electric Co., Ltd.	Letter segmenting apparatus for OCR comprising multi-level segmentor operable when binary segmenting fails
DE2706080C2 (de) *	1977-02-12	1986-10-23	Philips Patentverwaltung Gmbh, 2000 Hamburg	Verfahren zur adaptiven Quantisierung von Transformationskoeffizienten eines Bildes und Anordnung zum Durchführen des Verfahrens
GB2044500B (en) *	1979-03-16	1983-03-16	Hajime Industries	Signal processing counting apparatus
US4875776A (en) *	1979-09-07	1989-10-24	Diffracto Ltd.	Electro-optical inspection
US4576482A (en) *	1979-09-07	1986-03-18	Diffracto Ltd.	Electro-optical inspection
DE3019836A1 (de) *	1980-05-23	1982-01-21	Siemens AG, 1000 Berlin und 8000 München	Verfahren zum automatischen erkennen von bild- und text- oder graphikbereichen auf druckvorlagen
US4381494A (en) *	1980-10-06	1983-04-26	Burroughs Corporation	Intercharacter gap detector for MICRS
IT1201920B (it) *	1982-03-22	1989-02-02	Olivetti & Co Spa	Apparecchiatura per la scansione ed il trattamento numerico di immagini con mezzi toni
DE3426056A1 (de) *	1983-07-16	1985-01-24	Leicester Polytechnic, Leicester	Verfahren und vorrichtung zur kontrolle von textilien
GB8331248D0 (en) *	1983-11-23	1983-12-29	Kearney & Trecker Marwin Ltd	Inspecting articles
JPS6274181A (ja) *	1985-09-27	1987-04-04	Sony Corp	文字認識装置
JP2822189B2 (ja) *	1988-05-19	1998-11-11	ソニー株式会社	文字認識装置及び方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3526876A (en) *	1965-10-24	1970-09-01	Ibm	Character separation apparatus for character recognition machines
US3500324A (en) *	1966-07-27	1970-03-10	Ibm	Analog segmentation apparatus
US3534334A (en) *	1967-06-20	1970-10-13	Ibm	Automatic control of a threshold in the digitization of an analog signal

1970
- 1970-09-25 US US75513A patent/US3662341A/en not_active Expired - Lifetime
1971
- 1971-07-20 FR FR7127191A patent/FR2105823A5/fr not_active Expired
- 1971-08-06 JP JP46059107A patent/JPS514888B1/ja active Pending
- 1971-09-10 CH CH1329171A patent/CH529385A/de not_active IP Right Cessation
- 1971-09-14 CA CA122732A patent/CA930866A/en not_active Expired
- 1971-09-17 DE DE2146497A patent/DE2146497C3/de not_active Expired
- 1971-09-22 GB GB4410171A patent/GB1337159A/en not_active Expired

Also Published As

Publication number	Publication date
GB1337159A (en)	1973-11-14
US3662341A (en)	1972-05-09
DE2146497C3 (de)	1979-02-15
DE2146497A1 (de)	1972-03-30
CH529385A (de)	1972-10-15
FR2105823A5 (de)	1972-04-28
DE2146497B2 (de)	1978-06-08
JPS514888B1 (de)	1976-02-16

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