FR2418594A2 - Dispositif de reduction du bruit pour un signal video - Google Patents

Dispositif de reduction du bruit pour un signal video

Info

Publication number
FR2418594A2
FR2418594A2 FR7828546A FR7828546A FR2418594A2 FR 2418594 A2 FR2418594 A2 FR 2418594A2 FR 7828546 A FR7828546 A FR 7828546A FR 7828546 A FR7828546 A FR 7828546A FR 2418594 A2 FR2418594 A2 FR 2418594A2
Authority
FR
France
Prior art keywords
video signal
reduction device
noise reduction
chrominance
television
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.)
Granted
Application number
FR7828546A
Other languages
English (en)
Other versions
FR2418594B2 (fr
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.)
CBS Broadcasting Inc
Original Assignee
CBS Inc
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 CBS Inc filed Critical CBS Inc
Publication of FR2418594A2 publication Critical patent/FR2418594A2/fr
Application granted granted Critical
Publication of FR2418594B2 publication Critical patent/FR2418594B2/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)

Abstract

L'invention concerne le traitement des signaux vidéo. Un dispositif de réduction du bruit pour un signal vidéo en couleur comporte des éléments qui évaluent le mouvement entre les images successives du signal vidéo. Pour éviter que le bruit de phase de la sous-porteuse de chrominance n'affecte cette évaluation, on bloque la composante de chrominance à l'aide de filtres numériques respectifs 24, 26, 28 et 32, 34, 36. Application à la télévision en couleurs.
FR7828546A 1978-02-27 1978-10-05 Dispositif de reduction du bruit pour un signal video Granted FR2418594A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88128478A 1978-02-27 1978-02-27

Publications (2)

Publication Number Publication Date
FR2418594A2 true FR2418594A2 (fr) 1979-09-21
FR2418594B2 FR2418594B2 (fr) 1985-05-17

Family

ID=25378151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828546A Granted FR2418594A2 (fr) 1978-02-27 1978-10-05 Dispositif de reduction du bruit pour un signal video

Country Status (5)

Country Link
JP (1) JPS54115018A (fr)
CA (1) CA1106058A (fr)
DE (1) DE2845591C2 (fr)
FR (1) FR2418594A2 (fr)
GB (1) GB2015294B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530908A1 (fr) * 1982-07-20 1984-01-27 Victor Company Of Japan Circuit d'amelioration du rapport signal/bruit pour un signal video en couleurs

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033190B (en) * 1978-09-21 1983-02-09 Sony Corp Video noise reduction system
US4390894A (en) * 1980-08-20 1983-06-28 U.S. Philips Corporation Noise suppression circuit for a video signal
GB2124449B (en) * 1982-07-16 1986-11-19 British Broadcasting Corp Concealment of defects in a video signal
GB2139037B (en) * 1983-03-11 1986-06-11 British Broadcasting Corp Measuring the amount of unsteadiness in video signals derived from cine film
US4651211A (en) * 1986-01-17 1987-03-17 Rca Corporation Video signal motion detecting apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306178A (fr) * 1971-06-24 1973-02-07
FR2157927A1 (fr) * 1971-10-26 1973-06-08 Western Electric Co
US4032975A (en) * 1974-02-25 1977-06-28 Mcdonnell Douglas Corporation Detector array gain compensation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107736A (en) * 1971-12-20 1978-08-15 Image Transform, Inc. Noise reduction system for video signals
US3875584A (en) * 1973-10-17 1975-04-01 Nasa Television noise reduction device
US4064530A (en) * 1976-11-10 1977-12-20 Cbs Inc. Noise reduction system for color television

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306178A (fr) * 1971-06-24 1973-02-07
FR2157927A1 (fr) * 1971-10-26 1973-06-08 Western Electric Co
US4032975A (en) * 1974-02-25 1977-06-28 Mcdonnell Douglas Corporation Detector array gain compensation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530908A1 (fr) * 1982-07-20 1984-01-27 Victor Company Of Japan Circuit d'amelioration du rapport signal/bruit pour un signal video en couleurs

Also Published As

Publication number Publication date
FR2418594B2 (fr) 1985-05-17
GB2015294B (en) 1982-06-23
GB2015294A (en) 1979-09-05
JPS54115018A (en) 1979-09-07
DE2845591C2 (de) 1982-09-09
CA1106058A (fr) 1981-07-28
DE2845591A1 (de) 1979-08-30

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