ES2106791T3 - Sistema de reduccion de ruido de video empleando una pluralidad de bandas de frecuencia. - Google Patents
Sistema de reduccion de ruido de video empleando una pluralidad de bandas de frecuencia.Info
- Publication number
- ES2106791T3 ES2106791T3 ES92101150T ES92101150T ES2106791T3 ES 2106791 T3 ES2106791 T3 ES 2106791T3 ES 92101150 T ES92101150 T ES 92101150T ES 92101150 T ES92101150 T ES 92101150T ES 2106791 T3 ES2106791 T3 ES 2106791T3
- Authority
- ES
- Spain
- Prior art keywords
- noise
- reduced
- low frequency
- noise reduction
- output 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 - Lifetime
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
-
- 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
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S348/00—Television
- Y10S348/908—Convertible circuits, e.g. y/c separation or noise reduction
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
UN FILTRO DE ENTRADA SEPARA UNA SEÑAL DE ENTRADA LUMINOSA (Y2) EN UN COMPONENTE DE ALTA FRECUENCIA (Y11) AL QUE SE LA REDUCE EL RUIDO POR CENTRALIZACION (42) Y UN COMPONENTE DE BAJA FRECUENCIA (Y9) AL QUE SE LE REDUCE EL RUIDO MEDIANTE UN FILTRO RECURSIVO DE MARCO (30) PRECEDIDO POR UN SUB-MUESTREO (22) Y SEGUIDO POR LA RESTAURACION DE NIVEL DE MUESTRA POR INTERPOLACION. UN CIRCUITO DE SALIDA (40) COMBINA LOS COMPONENTES CON REDUCCION DE RUIDO PARA PROPORCIONAR UNA SEÑAL DE SALIDA PROCESADA (Y10) EN LA QUE SUS PARTES DE ALTA FRECUENCIA SE SOMETEN A CENTRALIZACION Y SUS PARTES DE BAJA FRECUENCIA SON SOMETIDAS A UN FILTRADO RECURSIVO. EN UNA APLICACION ESPECIAL EL FILTRO RECURSIVO DE MARCO (30) PROPORCIONA UNA PLURALIDAD DE COMPONENTES SUB-MOSTRADOS DE BAJA FRECUENCIA (Y6, Y9, Y18, Y20) QUE ESTAN COMBINADOS CON LA SEÑAL DE SALIDA PROCESADA (Y10) EN OTRO CIRCUITO DE SALIDA (50, 60) PARA PROPORCIONAR UNA SEÑAL DE SALIDA CON RUIDO REDUCIDO (Y15) EN FORMA DE EXPLORACION PROGRESIVA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/648,782 US5119195A (en) | 1991-01-31 | 1991-01-31 | Video noise reduction system employing plural frequency bands |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2106791T3 true ES2106791T3 (es) | 1997-11-16 |
Family
ID=24602217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92101150T Expired - Lifetime ES2106791T3 (es) | 1991-01-31 | 1992-01-24 | Sistema de reduccion de ruido de video empleando una pluralidad de bandas de frecuencia. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5119195A (es) |
EP (1) | EP0497222B1 (es) |
JP (1) | JP2704476B2 (es) |
KR (1) | KR100273815B1 (es) |
CN (1) | CN1029277C (es) |
DE (1) | DE69221744T2 (es) |
ES (1) | ES2106791T3 (es) |
MX (1) | MX9200416A (es) |
MY (1) | MY108266A (es) |
SG (1) | SG83076A1 (es) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0767176B2 (ja) * | 1990-11-28 | 1995-07-19 | 松下電器産業株式会社 | 符号化雑音除去フィルタ |
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 |
US5260791A (en) * | 1992-06-04 | 1993-11-09 | David Sarnoff Research Center, Inc. | Method and apparatus for the spatio-temporal coring of images |
DE59307415D1 (de) | 1992-07-31 | 1997-10-30 | Siemens Ag | Verfahren und Anordung zur Rauschreduktion bei Fernseh-oder Videosignalen |
EP0610604A1 (en) * | 1993-02-11 | 1994-08-17 | Agfa-Gevaert N.V. | Multiple processing of radiographic images based on a pyramidal image decomposition |
US5381182A (en) * | 1993-09-28 | 1995-01-10 | Honeywell Inc. | Flat panel image reconstruction interface for producing a non-interlaced video signal |
JP3242515B2 (ja) * | 1993-12-24 | 2001-12-25 | キヤノン株式会社 | 撮像装置 |
US5872602A (en) * | 1995-12-13 | 1999-02-16 | Johnson; Robert E. | Fluoroscopic imaging system with image enhancement apparatus and method |
DE69614243T2 (de) * | 1996-03-12 | 2001-11-22 | Matsushita Electric Ind Co Ltd | Schaltung zur Rauschverminderung für einen Fernsehempfänger |
US5909516A (en) * | 1996-03-29 | 1999-06-01 | Sarnoff Corporation | Method and apparatus for decomposing an image stream into units of local contrast |
JPH1023296A (ja) * | 1996-07-05 | 1998-01-23 | Canon Inc | 信号処理装置及び方法 |
DE69842015D1 (de) * | 1997-12-04 | 2011-01-05 | Victor Company Of Japan | Verfahren und Vorrichtung zur Verarbeitung von Videosignalen |
US6714258B2 (en) | 2000-03-15 | 2004-03-30 | Koninklijke Philips Electronics N.V. | Video-apparatus with noise reduction |
EP1137268A1 (en) * | 2000-03-15 | 2001-09-26 | Koninklijke Philips Electronics N.V. | Video-apparatus with noise reduction |
JP2005519379A (ja) * | 2002-02-28 | 2005-06-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | イメージ内のノイズ・フィルタリング |
KR100702238B1 (ko) | 2005-07-04 | 2007-04-03 | 삼성전자주식회사 | 영상처리장치 및 영상처리방법 |
KR20070079224A (ko) * | 2006-02-01 | 2007-08-06 | 삼성전자주식회사 | 코어링 장치 및 이를 이용하는 휘도 처리 프로세서와 그방법 |
TR201810171T4 (tr) * | 2006-10-03 | 2018-08-27 | Vestel Elektronik Sanayi Ve Ticaret Anonim Sirketi | Bir girdi görüntüsündeki halka şeklinde artefaktları en aza indirmek için yöntem ve aparat. |
DE102007022978A1 (de) * | 2007-05-15 | 2008-11-20 | Atmel Germany Gmbh | Korrelationsvorrichtung |
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 |
JP4356031B2 (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 |
JP2009021756A (ja) * | 2007-07-11 | 2009-01-29 | Sony Corp | ノイズ除去回路、ノイズ除去方法、撮像装置、プログラム |
JP2009100373A (ja) * | 2007-10-18 | 2009-05-07 | Sanyo Electric Co Ltd | ノイズ低減処理装置、ノイズ低減処理方法、及び電子機器 |
JP5493760B2 (ja) * | 2009-01-19 | 2014-05-14 | 株式会社ニコン | 画像処理装置およびデジタルカメラ |
JP4656238B2 (ja) * | 2009-01-19 | 2011-03-23 | 株式会社ニコン | 画像処理装置およびデジタルカメラ |
JP5663228B2 (ja) * | 2010-07-26 | 2015-02-04 | オリンパス株式会社 | 画像処理装置 |
WO2012080905A1 (en) * | 2010-12-14 | 2012-06-21 | Koninklijke Philips Electronics N.V. | Ultrasound imaging system and method with peak intensity detection |
US9495731B2 (en) * | 2015-04-15 | 2016-11-15 | Apple Inc. | Debanding image data based on spatial activity |
JP7300164B2 (ja) * | 2019-08-08 | 2023-06-29 | アストロデザイン株式会社 | ノイズリダクション方法 |
Family Cites Families (15)
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 |
US4538236A (en) * | 1982-09-24 | 1985-08-27 | Rca Corporation | Adaptive digital signal coring circuit |
GB8329109D0 (en) * | 1983-11-01 | 1983-12-07 | Rca Corp | Perceived signal-to-noise ratio of displayed images |
KR890004220B1 (ko) * | 1984-06-30 | 1989-10-27 | 마쯔시다덴기산교 가부시기가이샤 | 영상신호 처리장치 |
US4639783A (en) * | 1984-11-30 | 1987-01-27 | Rca Corporation | Video signal field/frame storage system |
US4652907A (en) * | 1985-03-25 | 1987-03-24 | Rca Corporation | Apparatus for adaptively controlling a video signal recursive filter |
US4748498A (en) * | 1985-11-19 | 1988-05-31 | Matsushita Electric Industrial Co., Ltd. | Luminance signal processing circuit with recursive filter for reducing noise while retaining a high vertical resolution |
US4723166A (en) * | 1986-04-11 | 1988-02-02 | Harris Corporation | Noise adjusted recursive filter |
US5015312A (en) * | 1987-09-29 | 1991-05-14 | Kinzie Norman F | Method and apparatus for constructing a three-dimensional surface of predetermined shape and color |
JPS6489765A (en) * | 1987-09-30 | 1989-04-04 | Toshiba Corp | Noise reduction circuit |
JPH01248893A (ja) * | 1988-03-30 | 1989-10-04 | Toshiba Corp | 雑音除去装置 |
JP2543567B2 (ja) * | 1988-04-07 | 1996-10-16 | 株式会社日立製作所 | ダイナミックノイズリダクション回路及びこれを用いたテレビジョン受信機 |
US5016104A (en) * | 1989-06-22 | 1991-05-14 | Massachusetts Institute Of Technology | Receiver-compatible noise reduction systems |
-
1991
- 1991-01-31 US US07/648,782 patent/US5119195A/en not_active Expired - Lifetime
-
1992
- 1992-01-15 MY MYPI92000067A patent/MY108266A/en unknown
- 1992-01-24 ES ES92101150T patent/ES2106791T3/es not_active Expired - Lifetime
- 1992-01-24 EP EP92101150A patent/EP0497222B1/en not_active Expired - Lifetime
- 1992-01-24 DE DE69221744T patent/DE69221744T2/de not_active Expired - Lifetime
- 1992-01-24 SG SG9603097A patent/SG83076A1/en unknown
- 1992-01-30 KR KR1019920001366A patent/KR100273815B1/ko not_active IP Right Cessation
- 1992-01-30 MX MX9200416A patent/MX9200416A/es not_active IP Right Cessation
- 1992-01-30 CN CN92100717A patent/CN1029277C/zh not_active Expired - Lifetime
- 1992-01-30 JP JP4054461A patent/JP2704476B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5119195A (en) | 1992-06-02 |
JPH06113175A (ja) | 1994-04-22 |
SG83076A1 (en) | 2001-09-18 |
DE69221744T2 (de) | 1998-01-02 |
EP0497222A3 (en) | 1992-10-14 |
EP0497222B1 (en) | 1997-08-27 |
KR100273815B1 (ko) | 2000-12-15 |
MY108266A (en) | 1996-09-30 |
MX9200416A (es) | 1992-09-01 |
CN1063982A (zh) | 1992-08-26 |
EP0497222A2 (en) | 1992-08-05 |
DE69221744D1 (de) | 1997-10-02 |
JP2704476B2 (ja) | 1998-01-26 |
KR920015853A (ko) | 1992-08-27 |
CN1029277C (zh) | 1995-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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