MX9708123A - Filtro de separacion de luma/croma con elemento de retraso comun. - Google Patents

Filtro de separacion de luma/croma con elemento de retraso comun.

Info

Publication number
MX9708123A
MX9708123A MX9708123A MX9708123A MX9708123A MX 9708123 A MX9708123 A MX 9708123A MX 9708123 A MX9708123 A MX 9708123A MX 9708123 A MX9708123 A MX 9708123A MX 9708123 A MX9708123 A MX 9708123A
Authority
MX
Mexico
Prior art keywords
signal
delayed
combined
luma
delay element
Prior art date
Application number
MX9708123A
Other languages
English (en)
Other versions
MXPA97008123A (es
Inventor
Donald Henry Willis
Original Assignee
Thomson Consumer Electronics
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 filed Critical Thomson Consumer Electronics
Publication of MXPA97008123A publication Critical patent/MXPA97008123A/es
Publication of MX9708123A publication Critical patent/MX9708123A/es

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
    • 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
    • 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
    • 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)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

Una señal de entrada de video compuesta se combina con una señal de reduccion de ruido para formar una primera señal de video de ruido reducido, la cual es retrasada por multiples períodos de (i) una línea menos de la mitad del ciclo de color, (ii) una línea y (iii) una línea más la mitad del ciclo de dolor para formar señales respectivas de primera, segunda y tercera señales retiradas en tiempo. Las primer y tercera señales retrasadas son combinadas para formar una señal promedio a partir de la cual un substractor substrae la señal de entrada de video compuesta. La señal de diferencia resultante se limita para formar la señal de reduccion de ruido. La primera señal de ruido reducido y la segunda señal de video retrasada se combinan en un circuito de salida para proveer señales de salida de crominancia y luminancia de ruido y separadas.
MX9708123A 1995-04-21 1996-04-16 Filtro de separacion de luma/croma con elemento de retraso comun. MX9708123A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08423710 1995-04-21
US08/423,710 US5519454A (en) 1995-04-21 1995-04-21 Luma/chroma separation filter with common delay element for comb filter separation and recursive noise reduction of composite video input signal
PCT/US1996/005217 WO1996033578A1 (en) 1995-04-21 1996-04-16 Luma/chroma separation filter with common delay element

Publications (2)

Publication Number Publication Date
MXPA97008123A MXPA97008123A (es) 1998-04-01
MX9708123A true MX9708123A (es) 1998-04-30

Family

ID=23679913

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9708123A MX9708123A (es) 1995-04-21 1996-04-16 Filtro de separacion de luma/croma con elemento de retraso comun.

Country Status (13)

Country Link
US (1) US5519454A (es)
EP (1) EP0821858B1 (es)
JP (1) JP3393649B2 (es)
KR (1) KR100388579B1 (es)
CN (1) CN1140998C (es)
AU (1) AU5485396A (es)
DE (1) DE69603268T2 (es)
ES (1) ES2133959T3 (es)
MX (1) MX9708123A (es)
MY (1) MY113601A (es)
RU (1) RU2156550C2 (es)
TR (1) TR199701214T1 (es)
WO (1) WO1996033578A1 (es)

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US6122016A (en) * 1994-11-14 2000-09-19 U.S. Philips Corporation Video signal processing
JPH1023296A (ja) * 1996-07-05 1998-01-23 Canon Inc 信号処理装置及び方法
US6349139B1 (en) * 1997-06-17 2002-02-19 Macrovision Corporation Method and apparatus for minimizing chroma subcarrier instability caused by a video line scrambling system
US6912315B1 (en) * 1998-05-28 2005-06-28 Verance Corporation Pre-processed information embedding system
US7644282B2 (en) * 1998-05-28 2010-01-05 Verance Corporation Pre-processed information embedding system
US6737957B1 (en) 2000-02-16 2004-05-18 Verance Corporation Remote control signaling using audio watermarks
JP2002033942A (ja) * 2000-07-17 2002-01-31 Sanyo Electric Co Ltd 画像信号の雑音抑制方法及びこの雑音抑制方法を用いた画像信号処理装置
US20040028124A1 (en) * 2002-07-30 2004-02-12 Jukka Nuutinen Method of operating a communications system and a communications system
EP2782337A3 (en) 2002-10-15 2014-11-26 Verance Corporation Media monitoring, management and information system
WO2004114679A1 (en) * 2003-06-20 2004-12-29 Koninklijke Philips Electronics N.V. Luminance and color separation
US20060239501A1 (en) 2005-04-26 2006-10-26 Verance Corporation Security enhancements of digital watermarks for multi-media content
US8020004B2 (en) 2005-07-01 2011-09-13 Verance Corporation Forensic marking using a common customization function
US8781967B2 (en) 2005-07-07 2014-07-15 Verance Corporation Watermarking in an encrypted domain
US8049820B2 (en) * 2007-08-06 2011-11-01 Mediatek Inc. Video processing circuits and methods using same buffer for video decoder and cross color suppressor
GB2460418B (en) * 2008-05-28 2010-04-14 Mirics Semiconductor Ltd Broadcast receiver system
US8259938B2 (en) 2008-06-24 2012-09-04 Verance Corporation Efficient and secure forensic marking in compressed
KR20100101426A (ko) * 2009-03-09 2010-09-17 삼성전자주식회사 영상처리장치 및 그 제어 방법
US20100231799A1 (en) * 2009-03-10 2010-09-16 Mediatek, Inc. Method and apparatus for reducing color noises
US9607131B2 (en) 2010-09-16 2017-03-28 Verance Corporation Secure and efficient content screening in a networked environment
US8533481B2 (en) 2011-11-03 2013-09-10 Verance Corporation Extraction of embedded watermarks from a host content based on extrapolation techniques
US8615104B2 (en) 2011-11-03 2013-12-24 Verance Corporation Watermark extraction based on tentative watermarks
US8923548B2 (en) 2011-11-03 2014-12-30 Verance Corporation Extraction of embedded watermarks from a host content using a plurality of tentative watermarks
US8682026B2 (en) 2011-11-03 2014-03-25 Verance Corporation Efficient extraction of embedded watermarks in the presence of host content distortions
US8745403B2 (en) 2011-11-23 2014-06-03 Verance Corporation Enhanced content management based on watermark extraction records
US9547753B2 (en) 2011-12-13 2017-01-17 Verance Corporation Coordinated watermarking
US9323902B2 (en) 2011-12-13 2016-04-26 Verance Corporation Conditional access using embedded watermarks
US9571606B2 (en) 2012-08-31 2017-02-14 Verance Corporation Social media viewing system
US8869222B2 (en) 2012-09-13 2014-10-21 Verance Corporation Second screen content
US9106964B2 (en) 2012-09-13 2015-08-11 Verance Corporation Enhanced content distribution using advertisements
US8726304B2 (en) 2012-09-13 2014-05-13 Verance Corporation Time varying evaluation of multimedia content
US9262794B2 (en) 2013-03-14 2016-02-16 Verance Corporation Transactional video marking system
US9251549B2 (en) 2013-07-23 2016-02-02 Verance Corporation Watermark extractor enhancements based on payload ranking
US9208334B2 (en) 2013-10-25 2015-12-08 Verance Corporation Content management using multiple abstraction layers
EP3117626A4 (en) 2014-03-13 2017-10-25 Verance Corporation Interactive content acquisition using embedded codes
CN106937097B (zh) * 2017-03-01 2018-12-25 奇酷互联网络科技（深圳）有限公司 一种图像处理方法、系统及移动终端
US10645337B1 (en) * 2019-04-30 2020-05-05 Analong Devices International Unlimited Company Video line inversion for reducing impact of periodic interference signals on analog video transmission
US11736815B2 (en) 2020-12-15 2023-08-22 Analog Devices International Unlimited Company Interferer removal for reducing impact of periodic interference signals on analog video transmission

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JPS54127623A (en) * 1978-03-27 1979-10-03 Nec Corp S/n improving device for television video signal
JPS60121885A (ja) * 1983-12-05 1985-06-29 Victor Co Of Japan Ltd 映像信号の雑音低減回路
JPH0695767B2 (ja) * 1985-09-26 1994-11-24 日本電気ホームエレクトロニクス株式会社 高画質テレビジヨンｙ／ｃ分離装置
US4786963A (en) * 1987-06-26 1988-11-22 Rca Licensing Corporation Adaptive Y/C separation apparatus for TV signals
JPH0497686A (ja) * 1990-08-15 1992-03-30 Matsushita Electric Ind Co Ltd Ｙ／ｃ分離フィルター一体型ノイズ軽減回路
US5241375A (en) * 1991-06-26 1993-08-31 Thomson Consumer Electronics, Inc. Chrominance noise reduction apparatus employing two-dimensional recursive filtering of multiplexed baseband color difference components

Also Published As

Publication number Publication date
ES2133959T3 (es) 1999-09-16
CN1187925A (zh) 1998-07-15
KR100388579B1 (ko) 2003-11-14
CN1140998C (zh) 2004-03-03
EP0821858A1 (en) 1998-02-04
MY113601A (en) 2002-04-30
WO1996033578A1 (en) 1996-10-24
US5519454A (en) 1996-05-21
DE69603268T2 (de) 1999-11-11
DE69603268D1 (de) 1999-08-19
TR199701214T1 (xx) 1998-02-21
JPH11504174A (ja) 1999-04-06
EP0821858B1 (en) 1999-07-14
AU5485396A (en) 1996-11-07
KR19990007950A (ko) 1999-01-25
JP3393649B2 (ja) 2003-04-07
RU2156550C2 (ru) 2000-09-20

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