FR2456447A1 - Dispositif de traitement non lineaire de l'information de detail vertical d'une image video - Google Patents

Dispositif de traitement non lineaire de l'information de detail vertical d'une image video

Info

Publication number
FR2456447A1
FR2456447A1 FR8010439A FR8010439A FR2456447A1 FR 2456447 A1 FR2456447 A1 FR 2456447A1 FR 8010439 A FR8010439 A FR 8010439A FR 8010439 A FR8010439 A FR 8010439A FR 2456447 A1 FR2456447 A1 FR 2456447A1
Authority
FR
France
Prior art keywords
signal
network
vertical detail
chrominance
detail
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
FR8010439A
Other languages
English (en)
Other versions
FR2456447B1 (fr
Inventor
Jack Selig Fuhrer
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2456447A1 publication Critical patent/FR2456447A1/fr
Application granted granted Critical
Publication of FR2456447B1 publication Critical patent/FR2456447B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/002—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general without controlling loop

Landscapes

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

Abstract

L'INVENTION CONCERNE UN RESEAU POUR SELECTIVEMENT RESTAURER, ACCENTUER ET ROGNER LE DETAIL VERTICAL APRES UN FILTRE EN PEIGNE. SELON L'INVENTION, LE FILTRE EN PEIGNE 15 PRODUIT DES SIGNAUX DE LUMINANCE D'OU L'INFORMATION DE DETAIL VERTICAL A ETE SUPPRIMEE ET DE CHROMINANCE CONTENANT DES COMPOSANTES DE FREQUENCE REPRESENTATIVES DU SIGNAL DE DETAIL SUPPRIME, QUI SONT SELECTIVEMENT EXTRAITES DU SIGNAL DE CHROMINANCE. LES SIGNAUX DE DETAIL A UN BAS NIVEAU SONT RESTAURES AU SIGNAL DE LUMINANCE PAR UN RESEAU 22 AYANT UN GAIN PRESCRIT DE RESTAURATION; LE SIGNAL DE DETAIL EST COMBINE AU SIGNAL DE LUMINANCE PAR UN RESEAU 42, 50, 52 QUI SUPPRIME LES DETAILS A BAS NIVEAU, ACCENTUE CEUX A NIVEAU MODERE ET ROGNE CEUX A NIVEAU ELEVE. L'INVENTION S'APPLIQUE A LA TELEVISION EN COULEURS.
FR8010439A 1979-05-11 1980-05-09 Dispositif de traitement non lineaire de l'information de detail vertical d'une image video Expired FR2456447B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/038,203 US4245238A (en) 1979-05-11 1979-05-11 Non-linear processing of video image vertical detail information

Publications (2)

Publication Number Publication Date
FR2456447A1 true FR2456447A1 (fr) 1980-12-05
FR2456447B1 FR2456447B1 (fr) 1985-08-09

Family

ID=21898635

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8010439A Expired FR2456447B1 (fr) 1979-05-11 1980-05-09 Dispositif de traitement non lineaire de l'information de detail vertical d'une image video

Country Status (22)

Country Link
US (1) US4245238A (fr)
JP (1) JPS55153490A (fr)
KR (1) KR840000387B1 (fr)
AT (1) AT383713B (fr)
AU (1) AU536332B2 (fr)
BE (1) BE883156A (fr)
CA (1) CA1138097A (fr)
DE (1) DE3017931C2 (fr)
DK (1) DK148048C (fr)
ES (1) ES491347A0 (fr)
FI (1) FI72022C (fr)
FR (1) FR2456447B1 (fr)
GB (1) GB2049346B (fr)
HK (1) HK19187A (fr)
IT (1) IT1131169B (fr)
MX (1) MX5029E (fr)
MY (1) MY8500724A (fr)
NL (1) NL8002699A (fr)
NZ (1) NZ193570A (fr)
PL (1) PL129459B1 (fr)
PT (1) PT71200A (fr)
SE (1) SE450447B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245237A (en) * 1979-05-11 1981-01-13 Rca Corporation Controllable non-linear processing of video signals
US4445152A (en) * 1980-09-02 1984-04-24 Karlock James A Video detail enhancing circuit
US4343019A (en) * 1981-01-16 1982-08-03 Rca Corporation Apparatus for reducing the effect of co-channel interference on synchronizing pulses
US4402006A (en) * 1981-02-23 1983-08-30 Karlock James A Image enhancer apparatus
US4371891A (en) * 1981-04-10 1983-02-01 Rca Corporation Chrominance signal processor
GB2110044A (en) * 1981-11-06 1983-06-08 Rca Corp Digital signal separation network and television receiver including such a network
SE453246B (sv) * 1982-11-26 1988-01-18 Rca Corp Anordning och sett for bild-till-bildkamfiltrering av en sammansatt televisionssignal
IT1177297B (it) * 1983-11-28 1987-08-26 Rca Corp Elaboratore di segnali di dettaglio verticale
US4626894A (en) * 1984-10-04 1986-12-02 Rca Corporation Signal filtering system having adaptively cascaded filter stages for developing a variable bandwidth frequency characteristic
JPS62245894A (ja) * 1986-04-18 1987-10-27 Sony Corp 映像信号分離装置
JPH07123307B2 (ja) * 1986-05-20 1995-12-25 ソニー株式会社 Ｙ／ｃ分離回路
DE3619223A1 (de) * 1986-06-07 1987-12-10 Thomson Brandt Gmbh System zur rauschminderung
DE3619222A1 (de) * 1986-06-07 1987-12-10 Thomson Brandt Gmbh System zur rauschminderung
US5287174A (en) * 1991-04-05 1994-02-15 Sanyo Electric Co., Ltd. Vertical resolution correcting circuit for video signal
JP2004159067A (ja) * 2002-11-06 2004-06-03 Sanyo Electric Co Ltd 垂直シャープネス装置及びそれを備えたｔｖ受像機
DE102007022848A1 (de) * 2007-05-12 2008-11-13 Beth Holzbearbeitungsmaschinen Gmbh Vorrichtung und Verfahren zum Bearbeiten von Stirnseiten von Holzwerkstücken quer zu deren Faserlängsrichtung
WO2019173250A1 (fr) * 2018-03-04 2019-09-12 Osborn, Gmbh Outil de finition de surface rotatif avec adaptateur de montage d'outil

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053513C3 (de) * 1970-10-31 1975-08-14 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und Anordnung zur Vermeidung des Auflösungsverlustes in Vertikalrichtung eines Farbfernsehbildes
US3715477A (en) * 1971-03-11 1973-02-06 Rca Corp Video signal noise-limiting apparatus
NL158987B (nl) * 1972-06-10 1978-12-15 Philips Nv Apertuurcorrector voor een televisiebeeldsignaal, alsmede televisie-opneeminrichting, daarvan voorzien.
US4074321A (en) * 1976-10-12 1978-02-14 The Magnavox Company Circuit for separating chroma and luminance information in a composite video signal
US4096516A (en) * 1977-03-25 1978-06-20 Rca Corporation Electronic signal processing apparatus
DE2736368C2 (de) * 1977-08-12 1982-05-13 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und Schaltungsanordnung zur Aperturkorrektur eines digitalen Videosignals

Also Published As

Publication number Publication date
NZ193570A (en) 1983-12-16
ATA249980A (de) 1986-12-15
FI72022B (fi) 1986-11-28
AU536332B2 (en) 1984-05-03
DK148048B (da) 1985-02-11
CA1138097A (fr) 1982-12-21
JPS6133500B2 (fr) 1986-08-02
PT71200A (en) 1980-06-01
IT1131169B (it) 1986-06-18
AT383713B (de) 1987-08-10
DK204480A (da) 1980-11-12
DE3017931C2 (de) 1983-02-03
US4245238A (en) 1981-01-13
BE883156A (fr) 1980-09-01
HK19187A (en) 1987-03-13
FI801422A (fi) 1980-11-12
DK148048C (da) 1985-09-23
JPS55153490A (en) 1980-11-29
AU5808780A (en) 1980-11-13
PL129459B1 (en) 1984-05-31
FI72022C (fi) 1987-03-09
NL8002699A (nl) 1980-11-13
ES8103901A1 (es) 1981-03-16
FR2456447B1 (fr) 1985-08-09
MX5029E (es) 1983-02-22
KR830004025A (ko) 1983-06-30
IT8021962A0 (it) 1980-05-09
KR840000387B1 (ko) 1984-03-27
DE3017931A1 (de) 1980-11-20
PL224177A1 (fr) 1981-02-27
ES491347A0 (es) 1981-03-16
GB2049346B (en) 1983-03-16
MY8500724A (en) 1985-12-31
SE8003337L (sv) 1980-11-12
GB2049346A (en) 1980-12-17
SE450447B (sv) 1987-06-22

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Legal Events

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TP Transmission of property