CA1005916A - Video compaction for printed text - Google Patents

Video compaction for printed text

Info

Publication number
CA1005916A
CA1005916A CA174,801A CA174801A CA1005916A CA 1005916 A CA1005916 A CA 1005916A CA 174801 A CA174801 A CA 174801A CA 1005916 A CA1005916 A CA 1005916A
Authority
CA
Canada
Prior art keywords
printed text
video compaction
compaction
video
text
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
CA174,801A
Other versions
CA174801S (en
Inventor
George Nagy
Peter D. Welch
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
Application granted granted Critical
Publication of CA1005916A publication Critical patent/CA1005916A/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)
CA174,801A 1972-08-16 1973-06-22 Video compaction for printed text Expired CA1005916A (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
CA1005916A true CA1005916A (en) 1977-02-22

Family

ID=23075925

Family Applications (1)

Application Number Title Priority Date Filing Date
CA174,801A Expired CA1005916A (en) 1972-08-16 1973-06-22 Video compaction for printed text

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
DE848660C (en) * 1949-05-03 1953-11-19 Rudolf Dr-Ing Hell Process for the electrical transmission of images, drawings and fonts
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
FR2196564B1 (en) 1978-04-21
IT1003094B (en) 1976-06-10
FR2196564A1 (en) 1974-03-15
DE2336180C3 (en) 1978-06-01
DE2336180A1 (en) 1974-03-07
GB1386905A (en) 1975-03-12
JPS4947014A (en) 1974-05-07
DE2336180B2 (en) 1977-10-13
JPS5138204B2 (en) 1976-10-20

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