FR1472434A - Système de quantification de signaux vidéo - Google Patents

Système de quantification de signaux vidéo

Info

Publication number
FR1472434A
FR1472434A FR53810A FR53810A FR1472434A FR 1472434 A FR1472434 A FR 1472434A FR 53810 A FR53810 A FR 53810A FR 53810 A FR53810 A FR 53810A FR 1472434 A FR1472434 A FR 1472434A
Authority
FR
France
Prior art keywords
video signal
signal quantization
quantization system
video
signal
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
FR53810A
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
Priority claimed from US443227A external-priority patent/US3415950A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to FR53810A priority Critical patent/FR1472434A/fr
Application granted granted Critical
Publication of FR1472434A publication Critical patent/FR1472434A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
    • 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
    • G06V30/162—Quantising the image signal
    • 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; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Nonlinear Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
FR53810A 1965-03-29 1966-03-17 Système de quantification de signaux vidéo Expired FR1472434A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR53810A FR1472434A (fr) 1965-03-29 1966-03-17 Système de quantification de signaux vidéo

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US443227A US3415950A (en) 1965-03-29 1965-03-29 Video quantizing system
FR53810A FR1472434A (fr) 1965-03-29 1966-03-17 Système de quantification de signaux vidéo

Publications (1)

Publication Number Publication Date
FR1472434A true FR1472434A (fr) 1967-03-10

Family

ID=26169269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR53810A Expired FR1472434A (fr) 1965-03-29 1966-03-17 Système de quantification de signaux vidéo

Country Status (1)

Country Link
FR (1) FR1472434A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234704A1 (fr) * 1973-06-22 1975-01-17 Ibm
FR2469073A1 (fr) * 1979-10-26 1981-05-08 Sony Corp Circuit extracteur de donnees notamment pour bande magnetique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234704A1 (fr) * 1973-06-22 1975-01-17 Ibm
FR2469073A1 (fr) * 1979-10-26 1981-05-08 Sony Corp Circuit extracteur de donnees notamment pour bande magnetique

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