ES2102415T3 - Convertidor de exploracion progresiva de doble banda con reduccion del ruido. - Google Patents

Convertidor de exploracion progresiva de doble banda con reduccion del ruido.

Info

Publication number
ES2102415T3
ES2102415T3 ES92101149T ES92101149T ES2102415T3 ES 2102415 T3 ES2102415 T3 ES 2102415T3 ES 92101149 T ES92101149 T ES 92101149T ES 92101149 T ES92101149 T ES 92101149T ES 2102415 T3 ES2102415 T3 ES 2102415T3
Authority
ES
Spain
Prior art keywords
low frequency
video
frequency component
signal
processor
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
ES92101149T
Other languages
English (en)
Inventor
J Christopher Todd
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 ES2102415T3 publication Critical patent/ES2102415T3/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
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal
    • 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)
  • Computer Graphics (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

SE APLICA UNA SEÑAL DE ENTRADA DE VIDEO NO ENTRELAZADA (42) PROPORCIONADA POR UNA FUENTE (510), A UN PRIMER PROCESADOR (20, 30, 40) PARA PRODUCIR UNA PRIMERA SEÑAL DE SALIDA DE VIDEO (410) TENIENDO UN COMPONENTE DE ALTA FRECUENCIA (411) SUJETO A NUCLEACION Y TENIENDO UN PRIMER COMPONENTE DE BAJA FRECUENCIA (412) SOMETIDO A FILTRADO RECURSIVO DE MARCO. EL PRIMER PROCESADOR PROPORCIONA TAMBIEN UNA PLURALIDAD DE OTRAS SEÑALES DE SALIDA FILTRADAS RECURSIVAS DE BAJA FRECUENCIA (418, 420) TENIENDO RETRASOS DE DIFERENCIACION (1-H, 263-H) RELATIVOS A DICHO PRIMER COMPONENTE DE BAJA FRECUENCIA. UN SEGUNDO PROCESADOR (50), RESPONSABLE DE LOS COMPONENTES DE BAJA FRECUENCIA FILTRADOS RECURSIVAMENTE, PROPORCIONAN UNA SEÑAL DE DIFERENCIA DE VIDEO (426) REPRESENTATIVA DE UNA DIFERENCIA ENTRE UN COMPONENTE DE BAJA FRECUENCIA (49) DERIVADO DE UNA LINEA DE CORRIENTE DE LA SEÑAL DE ENTRADA DE VIDEO Y UN SEGUNDO COMPONENTE DE BAJA FRECUENCIA (426) DERIVADO DE AL MENOS UNA LINEA PREVIA DE LA SEÑAL DE ENTRADA DEVIDEO. UN CIRCUITO DE SALIDA (60) COMBINA SELECTIVAMENTE LA SEÑAL DE DIFERENCIA DE VIDEO (426) Y LA PRIMERA SEÑAL DE VIDEO (410) PARA PROPORCIONAR UNA EXPLORACION PROGRESIVA DE REDUCCION DE RUIDO (NO ENTRELAZADA) DE SEÑAL DE ENTRADA DE VIDEO (415) EN LA CUAL A SUS COMPONENTES DE ALTA FRECUENCIA SE LES REDUCE EL RUIDO MEDIANTE LA NUCLEACION Y SUS COMPONENTES DE BAJA FRECUENCIA TIENEN UNA REDUCCION DE RUIDO MEDIANTE LA FILTRACION RECURSIVA DEL MARCO.
ES92101149T 1991-01-31 1992-01-24 Convertidor de exploracion progresiva de doble banda con reduccion del ruido. Expired - Lifetime ES2102415T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/648,783 US5130798A (en) 1991-01-31 1991-01-31 Dual band progressive television system with noise reduction

Publications (1)

Publication Number Publication Date
ES2102415T3 true ES2102415T3 (es) 1997-08-01

Family

ID=24602223

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92101149T Expired - Lifetime ES2102415T3 (es) 1991-01-31 1992-01-24 Convertidor de exploracion progresiva de doble banda con reduccion del ruido.

Country Status (11)

Country Link
US (1) US5130798A (es)
EP (1) EP0497221B1 (es)
JP (1) JP2887771B2 (es)
KR (1) KR100255102B1 (es)
CN (1) CN1029068C (es)
DE (1) DE69220391T2 (es)
ES (1) ES2102415T3 (es)
MX (1) MX9200415A (es)
MY (1) MY108238A (es)
SG (1) SG54144A1 (es)
TW (2) TW214030B (es)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185664A (en) * 1991-10-31 1993-02-09 North American Philips Corporation Method and apparatus for combining field and frame recursive noise reduction for video signals
GB2266208B (en) * 1992-04-07 1995-10-11 Sony Broadcast & Communication Image data processing apparatus and method
US5260791A (en) * 1992-06-04 1993-11-09 David Sarnoff Research Center, Inc. Method and apparatus for the spatio-temporal coring of images
TW297202B (es) * 1993-10-13 1997-02-01 Rca Thomson Licensing Corp
JP3242515B2 (ja) * 1993-12-24 2001-12-25 キヤノン株式会社 撮像装置
JP2614410B2 (ja) * 1994-01-28 1997-05-28 インターナショナル・ビジネス・マシーンズ・コーポレイション 液晶駆動方法及び液晶駆動装置
DE69433225D1 (de) * 1994-04-27 2003-11-13 St Microelectronics Srl Abtastgeschwindigkeitskonverter mit Fuzzy-Logik
DE69431707D1 (de) * 1994-04-27 2002-12-19 Sgs Thomson Microelectronics Rauschvermindernde Filterung und interpolierende Abtastratenwandlung für digitale Videosignale, gesteuert durch mit Fuzzy-Logik detektierte Zwischenfeld-Korrelationsinformation
US5574512A (en) 1994-08-15 1996-11-12 Thomson Consumer Electronics, Inc. Motion adaptive video noise reduction system
US5862187A (en) * 1995-07-31 1999-01-19 Lucent Technologies Inc. MPSK demodulator
US7056979B1 (en) * 1998-06-12 2006-06-06 Bridgestone Corporation Reaction product derived from amine-functionalized elastomers and maleated polyolefins
US6310566B1 (en) 1999-02-24 2001-10-30 Thomson Licensing S.A. Digital data sample rate conversion system with delayed interpolation
US6718069B2 (en) * 2001-02-22 2004-04-06 Varian Medical Systems, Inc. Method and system for reducing correlated noise in image data
US7274828B2 (en) * 2003-09-11 2007-09-25 Samsung Electronics Co., Ltd. Method and apparatus for detecting and processing noisy edges in image detail enhancement
US7589326B2 (en) * 2003-10-15 2009-09-15 Varian Medical Systems Technologies, Inc. Systems and methods for image acquisition
US7095028B2 (en) * 2003-10-15 2006-08-22 Varian Medical Systems Multi-slice flat panel computed tomography
KR20070050439A (ko) * 2004-08-10 2007-05-15 코닌클리케 필립스 일렉트로닉스 엔.브이. 이미지 변환 유닛 및 방법
KR100702238B1 (ko) * 2005-07-04 2007-04-03 삼성전자주식회사 영상처리장치 및 영상처리방법
TWI326189B (en) 2006-05-19 2010-06-11 Novatek Microelectronics Corp Method and apparatus for suppressing cross-color in a video display device
US7889207B2 (en) * 2007-02-08 2011-02-15 Nikon Corporation Image apparatus with image noise compensation
JP4356030B2 (ja) * 2007-05-17 2009-11-04 ソニー株式会社 情報処理装置および方法
JP5121312B2 (ja) * 2007-06-05 2013-01-16 キヤノン株式会社 画像処理装置
JP5132198B2 (ja) * 2007-06-07 2013-01-30 キヤノン株式会社 画像処理装置、画像処理方法、及びプログラム
US8731072B2 (en) * 2010-06-07 2014-05-20 Stmicroelectronics International N.V. Adaptive filter for video signal processing for decoder that selects rate of switching between 2D and 3D filters for separation of chroma and luma signals
US9525804B2 (en) 2014-08-30 2016-12-20 Apple Inc. Multi-band YCbCr noise modeling and noise reduction based on scene metadata
US9667842B2 (en) 2014-08-30 2017-05-30 Apple Inc. Multi-band YCbCr locally-adaptive noise modeling and noise reduction based on scene metadata
US9681109B2 (en) 2015-08-20 2017-06-13 Qualcomm Incorporated Systems and methods for configurable demodulation
US9626745B2 (en) * 2015-09-04 2017-04-18 Apple Inc. Temporal multi-band noise reduction

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5279747A (en) * 1975-12-26 1977-07-05 Sony Corp Noise removal circuit
JPS54127623A (en) * 1978-03-27 1979-10-03 Nec Corp S/n improving device for television video signal
JPS5879379A (ja) * 1981-11-05 1983-05-13 Sony Corp テレビジヨン受像機
GB8329109D0 (en) * 1983-11-01 1983-12-07 Rca Corp Perceived signal-to-noise ratio of displayed images
US4623913A (en) * 1984-04-13 1986-11-18 Rca Corporation Progressive scan video processor
US4639783A (en) * 1984-11-30 1987-01-27 Rca Corporation Video signal field/frame storage system
FR2575886B1 (fr) * 1985-01-04 1987-02-20 Thomson Csf Procede pour reduire la visibilite du bruit dans une suite d'images video et dispositif pour la mise en oeuvre de ce procede
US4672445A (en) * 1985-05-29 1987-06-09 Rca Corporation Progressive scan processor employing interpolation in luminance channel controlled by a motion signal and a vertical detail representative signal
JPS63242091A (ja) * 1987-03-30 1988-10-07 Toshiba Corp 信号分離回路
US5025312A (en) * 1990-03-30 1991-06-18 Faroudja Y C Motion-adaptive video noise reduction system using recirculation and coring

Also Published As

Publication number Publication date
KR100255102B1 (ko) 2000-05-01
DE69220391T2 (de) 1997-10-09
JP2887771B2 (ja) 1999-04-26
TW223214B (es) 1994-05-01
EP0497221A2 (en) 1992-08-05
MY108238A (en) 1996-08-30
EP0497221A3 (en) 1992-12-16
DE69220391D1 (de) 1997-07-24
US5130798A (en) 1992-07-14
TW214030B (es) 1993-10-01
SG54144A1 (en) 1998-11-16
CN1063983A (zh) 1992-08-26
KR920015847A (ko) 1992-08-27
CN1029068C (zh) 1995-06-21
JPH06113176A (ja) 1994-04-22
MX9200415A (es) 1992-10-01
EP0497221B1 (en) 1997-06-18

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