IT1003094B - EQUIPMENT TO REDUCE THE BANDWIDTH NECESSARY FOR TRANSMISSION OR STORAGE OF BINARY SIGNALS REPRESENTING ALPHANUMERIC PRINTED CHARACTERS - Google Patents

EQUIPMENT TO REDUCE THE BANDWIDTH NECESSARY FOR TRANSMISSION OR STORAGE OF BINARY SIGNALS REPRESENTING ALPHANUMERIC PRINTED CHARACTERS

Info

Publication number
IT1003094B
IT1003094B IT25889/73A IT2588973A IT1003094B IT 1003094 B IT1003094 B IT 1003094B IT 25889/73 A IT25889/73 A IT 25889/73A IT 2588973 A IT2588973 A IT 2588973A IT 1003094 B IT1003094 B IT 1003094B
Authority
IT
Italy
Prior art keywords
transmission
equipment
reduce
storage
signals representing
Prior art date
Application number
IT25889/73A
Other languages
Italian (it)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT1003094B publication Critical patent/IT1003094B/en

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)
IT25889/73A 1972-08-16 1973-06-27 EQUIPMENT TO REDUCE THE BANDWIDTH NECESSARY FOR TRANSMISSION OR STORAGE OF BINARY SIGNALS REPRESENTING ALPHANUMERIC PRINTED CHARACTERS IT1003094B (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
IT1003094B true IT1003094B (en) 1976-06-10

Family

ID=23075925

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25889/73A IT1003094B (en) 1972-08-16 1973-06-27 EQUIPMENT TO REDUCE THE BANDWIDTH NECESSARY FOR TRANSMISSION OR STORAGE OF BINARY SIGNALS REPRESENTING ALPHANUMERIC PRINTED CHARACTERS

Country Status (6)

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

Families Citing this family (9)

* 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
US4317136A (en) * 1979-09-12 1982-02-23 Pitney Bowes Inc. Facsimile system
DE3118676A1 (en) * 1981-05-12 1982-12-02 Heinz Karl Eckhart Dr Jur METHOD FOR COMPRESSING REDUNDANT FOLLOWS OF SERIAL DATA ELEMENTS
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
NL1005930C2 (en) * 1997-04-29 1998-11-02 J V R Services Nieuwegein B V Compression of video data

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH286694A (en) * 1949-05-03 1952-10-31 Hell Rudolf Ing Dr Method of electrical image transmission.
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

Also Published As

Publication number Publication date
DE2336180A1 (en) 1974-03-07
DE2336180B2 (en) 1977-10-13
FR2196564A1 (en) 1974-03-15
JPS4947014A (en) 1974-05-07
JPS5138204B2 (en) 1976-10-20
GB1386905A (en) 1975-03-12
DE2336180C3 (en) 1978-06-01
CA1005916A (en) 1977-02-22
FR2196564B1 (en) 1978-04-21

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