BE639986A - - Google Patents

Info

Publication number
BE639986A
BE639986A BE639986DA BE639986A BE 639986 A BE639986 A BE 639986A BE 639986D A BE639986D A BE 639986DA BE 639986 A BE639986 A BE 639986A
Authority
BE
Belgium
Application number
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.)
Publication date
Publication of BE639986A publication Critical patent/BE639986A/xx

Links

Classifications

    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
    • 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
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • 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)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Character Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
BE639986D 1962-11-15 BE639986A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US237949A US3303330A (en) 1962-11-15 1962-11-15 Optical scanning system for character reader

Publications (1)

Publication Number Publication Date
BE639986A true BE639986A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1900-01-01

Family

ID=22895905

Family Applications (1)

Application Number Title Priority Date Filing Date
BE639986D BE639986A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1962-11-15

Country Status (5)

Country Link
US (1) US3303330A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE639986A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1245178B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB974216A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL300530A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842200A (en) * 1972-10-19 1974-10-15 Scanner Contrast processing of video signals with self-adjusting reference

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944217A (en) * 1955-11-30 1960-07-05 Ibm Signal translating apparatus
NL269949A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1957-05-17
US3146422A (en) * 1958-07-14 1964-08-25 Ibm Automatic output control system

Also Published As

Publication number Publication date
NL300530A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1900-01-01
US3303330A (en) 1967-02-07
DE1245178B (de) 1967-07-20
GB974216A (en) 1964-11-04

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