ES2108159T3 - Dispositivo de tratamiento de señales de video que emplea sustitucion de borde, preimpulsos y sobreimpulsos para mejorar la transicion. - Google Patents

Dispositivo de tratamiento de señales de video que emplea sustitucion de borde, preimpulsos y sobreimpulsos para mejorar la transicion.

Info

Publication number
ES2108159T3
ES2108159T3 ES93106580T ES93106580T ES2108159T3 ES 2108159 T3 ES2108159 T3 ES 2108159T3 ES 93106580 T ES93106580 T ES 93106580T ES 93106580 T ES93106580 T ES 93106580T ES 2108159 T3 ES2108159 T3 ES 2108159T3
Authority
ES
Spain
Prior art keywords
overelongation
elongation
transition
coupled
produced
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 - Lifetime
Application number
ES93106580T
Other languages
English (en)
Inventor
Robert Preston Parker
Mark Robert Anderson
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics 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 Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Application granted granted Critical
Publication of ES2108159T3 publication Critical patent/ES2108159T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N9/79—Processing of colour television signals in connection with recording
    • 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
    • H04N5/142—Edging; Contouring

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)

Abstract

UNA SEÑAL DE ENTRADA DE VIDEO (IN) SE APLICA A UN CIRCUITO DE RETARDO (22) QUE TIENE UNA PLURALIDAD DE DERIVACIONES (A; B; C; D; E) QUE SE ACOPLAN A CIRCUITOS DE SELECCION DE VALOR MAXIMO (40) Y MINIMO (50). EN LA AUSENCIA DE UN TRASIENTE DE SEÑAL DE VIDEO, LA DERIVACION CENTRAL (C) DEL CIRCUITO DE RETARDO SE ACOPLA CON UN TERMINAL DE SALIDA (OUT) POR MEDIO DE UN CONMUTADOR DE SALIDA (60). CUANDO SE PRODUCE UN TRASIENTE DE PASO DEL BLANCO, EL CONMUTADOR DE SALIDA SELECCIONA SECUENCIALMENTE LAS SALIDAS DE LOS SELECTORES DE VALOR MAXIMO Y MINIMO PARA SU APLICACION AL TERMINAL DE SALIDA. CUANDO SE PRODUCE UN TRASIENTE DE PASO DE NEGRO, EL CONMUTADOR DE SALIDA SELECCIONA SECUENCIALMENTE LAS SALIDAS DE LOS SELECTORES DE VALOR MAXIMO Y MINIMO PARA SU APLICACION AL TERMINAL DE SALIDA. LOS CIRCUITOS QUE PRODUCEN DESAJUSTE (42; 52) SE ACOPLAN A LOS SELECTORES DE VALOR MINIMO Y MAXIMO MEDIANTE LO CUAL SE PRODUCE UNA SEÑAL DE SALIDA QUE TIENE UNA PREELONGACION, UNA SOBREELONGACION Y UNA TRANSICION RAPIDA ENTRE AMBAS PARA LOS TRASIENTES DE SEÑALES DE ENTRADA DE CUALQUIER DIRECCION Y EN QUE LAS AMPLITUDES DE ELONGACION SON INDEPENDIENTEMENTE CONTROLABLES SUMINISTRANDO DE ESTA FORMA LAS VENTAJAS COMBINADAS DE LA VELOCIDAD DE TRANSICION DE SISTEMAS DE MEJORA DE REEMPLAZAMIENTO DEL BORDE CON CARACTERISTICAS DE PREELONGACION Y SOBREELONGACION DE SISTEMAS DE PICO TRANSVERSAL.
ES93106580T 1992-04-30 1993-04-22 Dispositivo de tratamiento de señales de video que emplea sustitucion de borde, preimpulsos y sobreimpulsos para mejorar la transicion. Expired - Lifetime ES2108159T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/876,271 US5369446A (en) 1992-04-30 1992-04-30 Video signal processor employing edge replacement, preshoots and overshoots for transient enhancement

Publications (1)

Publication Number Publication Date
ES2108159T3 true ES2108159T3 (es) 1997-12-16

Family

ID=25367324

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93106580T Expired - Lifetime ES2108159T3 (es) 1992-04-30 1993-04-22 Dispositivo de tratamiento de señales de video que emplea sustitucion de borde, preimpulsos y sobreimpulsos para mejorar la transicion.

Country Status (12)

Country Link
US (1) US5369446A (es)
EP (1) EP0567934B1 (es)
JP (1) JP2869761B2 (es)
KR (1) KR100278260B1 (es)
CN (1) CN1034902C (es)
BR (1) BR9301669A (es)
DE (1) DE69314837T2 (es)
ES (1) ES2108159T3 (es)
MX (1) MX9302535A (es)
MY (1) MY109861A (es)
SG (1) SG93756A1 (es)
TR (1) TR27587A (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546135A (en) * 1992-02-28 1996-08-13 Matsushita Electric Industrial Co., Ltd. Contour restoration apparatus
KR0141782B1 (ko) * 1994-09-10 1998-06-15 구자홍 영상선명화장치
KR100225583B1 (ko) * 1996-12-28 1999-10-15 전주범 윤곽 보정 방법 및 이를 수행하기 위한 윤곽보정 회로
US6097848A (en) * 1997-11-03 2000-08-01 Welch Allyn, Inc. Noise reduction apparatus for electronic edge enhancement
US6441866B1 (en) * 1999-01-14 2002-08-27 Omnivision Technologies, Inc. Edge enhancement with background noise suppression in video image processing
KR100287856B1 (ko) * 1999-02-05 2001-04-16 구자홍 색상신호 처리장치
JP3725402B2 (ja) * 2000-03-23 2005-12-14 アルプス電気株式会社 テレビジョンチューナ
US6717622B2 (en) * 2001-03-30 2004-04-06 Koninklijke Philips Electronics N.V. System and method for scalable resolution enhancement of a video image
CN100588188C (zh) * 2001-07-20 2010-02-03 Nxp股份有限公司 用于识别信号边沿的方法和装置
US7271851B2 (en) * 2003-01-16 2007-09-18 Samsung Electronics Co., Ltd. Adaptive color transient improvement
JP2006093884A (ja) * 2004-09-21 2006-04-06 Oki Electric Ind Co Ltd フィルタ装置
GB2423660B (en) 2005-02-25 2010-08-18 Imagination Tech Ltd A method and apparatus for controlling overshoot in a video enhancement system
US8810636B2 (en) 2006-12-20 2014-08-19 Ge Inspection Technologies, Lp Inspection apparatus method and apparatus comprising selective frame output
US9633426B2 (en) 2014-05-30 2017-04-25 General Electric Company Remote visual inspection image capture system and method
US8213676B2 (en) 2006-12-20 2012-07-03 Ge Inspection Technologies Lp Inspection apparatus method and apparatus comprising motion responsive control
US20090153743A1 (en) * 2007-12-18 2009-06-18 Sony Corporation Image processing device, image display system, image processing method and program therefor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041531A (en) * 1974-07-05 1977-08-09 Rca Corporation Television signal processing apparatus including a transversal equalizer
CA1219338A (en) * 1983-07-27 1987-03-17 Rca Corporation Signal processing circuit
EP0198103B1 (de) * 1985-04-19 1989-07-05 Deutsche ITT Industries GmbH Schaltungsanordnung zur Versteilerung von Farbsignalsprüngen
JPS61284190A (ja) * 1985-06-11 1986-12-15 Sharp Corp カラ−映像信号用エンハンサ
DE3786623T2 (de) * 1986-09-16 1993-12-02 Victor Company Of Japan Schaltung zur Verarbeitung vom Videosignal.
US4758891A (en) * 1986-10-20 1988-07-19 North American Philips Consumer Electronics Corp. Method and apparatus for improving the rise and fall time of a video signal
US4777385A (en) * 1987-02-09 1988-10-11 Rca Licensing Corporation Signal transient improvement circuit
JPS63232576A (ja) * 1987-03-19 1988-09-28 Toshiba Corp 輪郭強調回路
JPS63292777A (ja) * 1987-05-25 1988-11-30 Mitsubishi Electric Corp 輪郭補正装置
JPH01297980A (ja) * 1988-05-26 1989-12-01 Matsushita Electric Ind Co Ltd 輪郭改善回路
JP2503614B2 (ja) * 1988-12-28 1996-06-05 三菱電機株式会社 映像信号輪郭補正装置

Also Published As

Publication number Publication date
BR9301669A (pt) 1993-11-03
DE69314837T2 (de) 1998-02-26
EP0567934A2 (en) 1993-11-03
KR930022911A (ko) 1993-11-24
US5369446A (en) 1994-11-29
EP0567934A3 (es) 1994-01-19
CN1081048A (zh) 1994-01-19
MX9302535A (es) 1993-10-01
CN1034902C (zh) 1997-05-14
SG93756A1 (en) 2003-01-21
DE69314837D1 (de) 1997-12-04
JP2869761B2 (ja) 1999-03-10
MY109861A (en) 1997-09-30
KR100278260B1 (ko) 2001-01-15
EP0567934B1 (en) 1997-10-29
TR27587A (tr) 1995-06-13
JPH0630304A (ja) 1994-02-04

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