GB1386905A - Apparatus for transmitting optically scanned information - Google Patents

Apparatus for transmitting optically scanned information

Info

Publication number
GB1386905A
GB1386905A GB3560573A GB3560573A GB1386905A GB 1386905 A GB1386905 A GB 1386905A GB 3560573 A GB3560573 A GB 3560573A GB 3560573 A GB3560573 A GB 3560573A GB 1386905 A GB1386905 A GB 1386905A
Authority
GB
United Kingdom
Prior art keywords
prototype
character
pattern
stored
line
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.)
Expired
Application number
GB3560573A
Other languages
English (en)
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.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1386905A publication Critical patent/GB1386905A/en
Expired 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
    • G06V30/166—Normalisation of pattern dimensions
    • 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
    • G06V30/19—Recognition using electronic means
    • G06V30/196—Recognition using electronic means using sequential comparisons of the image signals with a plurality of references
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/4115—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures involving the recognition of specific patterns, e.g. by symbol matching

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
GB3560573A 1972-08-16 1973-07-26 Apparatus for transmitting optically scanned information Expired GB1386905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28109272A 1972-08-16 1972-08-16

Publications (1)

Publication Number Publication Date
GB1386905A true GB1386905A (en) 1975-03-12

Family

ID=23075925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3560573A Expired GB1386905A (en) 1972-08-16 1973-07-26 Apparatus for transmitting optically scanned information

Country Status (6)

Country Link
JP (1) JPS5138204B2 (fr)
CA (1) CA1005916A (fr)
DE (1) DE2336180C3 (fr)
FR (1) FR2196564B1 (fr)
GB (1) GB1386905A (fr)
IT (1) IT1003094B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025683A2 (fr) * 1979-09-12 1981-03-25 Pitney Bowes, Inc. Système de transmission en fac-similé
NL1005930C2 (nl) * 1997-04-29 1998-11-02 J V R Services Nieuwegein B V Registratie-, transmissie- en weergeefsysteem voor video-informatie.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054951A (en) * 1976-06-30 1977-10-18 International Business Machines Corporation Data expansion apparatus
JPS5350626A (en) * 1976-10-20 1978-05-09 Japanese National Railways<Jnr> Data transfer system
US4087788A (en) * 1977-01-14 1978-05-02 Ncr Canada Ltd - Ncr Canada Ltee Data compression system
US4091424A (en) * 1977-02-18 1978-05-23 Compression Labs, Inc. Facsimile compression system
DE3118676A1 (de) * 1981-05-12 1982-12-02 Heinz Karl Eckhart Dr Jur Verfahren zur kompression redundanter folgen serieller datenelemente
US4494150A (en) * 1982-07-13 1985-01-15 International Business Machines Corporation Word autocorrelation redundancy match facsimile compression for text processing systems
US5331431A (en) * 1992-08-31 1994-07-19 Motorola, Inc. Method and apparatus for transmitting and receiving encoded data

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH286694A (de) * 1949-05-03 1952-10-31 Hell Rudolf Ing Dr Verfahren zur elektrischen Bildübertragung.
US3142040A (en) * 1961-01-31 1964-07-21 Zeheb David Information reading and transmitting system
US3215773A (en) * 1962-05-14 1965-11-02 Philco Corp Reduced bandwidth data transmission system
US3632865A (en) * 1969-12-23 1972-01-04 Bell Telephone Labor Inc Predictive video encoding using measured subject velocity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025683A2 (fr) * 1979-09-12 1981-03-25 Pitney Bowes, Inc. Système de transmission en fac-similé
EP0025683A3 (en) * 1979-09-12 1981-08-05 Pitney Bowes, Inc. Facsimile communication system
NL1005930C2 (nl) * 1997-04-29 1998-11-02 J V R Services Nieuwegein B V Registratie-, transmissie- en weergeefsysteem voor video-informatie.

Also Published As

Publication number Publication date
FR2196564A1 (fr) 1974-03-15
IT1003094B (it) 1976-06-10
JPS5138204B2 (fr) 1976-10-20
DE2336180A1 (de) 1974-03-07
DE2336180C3 (de) 1978-06-01
JPS4947014A (fr) 1974-05-07
FR2196564B1 (fr) 1978-04-21
DE2336180B2 (de) 1977-10-13
CA1005916A (en) 1977-02-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee