DE3789193D1 - Videodifferenz-Keygenerator. - Google Patents

Videodifferenz-Keygenerator.

Info

Publication number
DE3789193D1
DE3789193D1 DE87115625T DE3789193T DE3789193D1 DE 3789193 D1 DE3789193 D1 DE 3789193D1 DE 87115625 T DE87115625 T DE 87115625T DE 3789193 T DE3789193 T DE 3789193T DE 3789193 D1 DE3789193 D1 DE 3789193D1
Authority
DE
Germany
Prior art keywords
key generator
video difference
difference key
video
generator
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 - Fee Related
Application number
DE87115625T
Other languages
English (en)
Other versions
DE3789193T2 (de
Inventor
Ronnie D Barnett
Steven M Parkes
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.)
Grass Valley Group Inc
Original Assignee
Grass Valley Group 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 Grass Valley Group Inc filed Critical Grass Valley Group Inc
Application granted granted Critical
Publication of DE3789193D1 publication Critical patent/DE3789193D1/de
Publication of DE3789193T2 publication Critical patent/DE3789193T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • H04N5/275—Generation of keying signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/74—Circuits for processing colour signals for obtaining special effects
    • H04N9/75—Chroma key

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Studio Circuits (AREA)
  • Closed-Circuit Television Systems (AREA)
DE3789193T 1986-10-24 1987-10-23 Videodifferenz-Keygenerator. Expired - Fee Related DE3789193T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/922,976 US4800432A (en) 1986-10-24 1986-10-24 Video Difference key generator

Publications (2)

Publication Number Publication Date
DE3789193D1 true DE3789193D1 (de) 1994-04-07
DE3789193T2 DE3789193T2 (de) 1994-09-29

Family

ID=25447903

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3789193T Expired - Fee Related DE3789193T2 (de) 1986-10-24 1987-10-23 Videodifferenz-Keygenerator.

Country Status (6)

Country Link
US (1) US4800432A (de)
EP (1) EP0264965B1 (de)
JP (1) JP2662957B2 (de)
AU (1) AU593397B2 (de)
CA (1) CA1314097C (de)
DE (1) DE3789193T2 (de)

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US4920415A (en) * 1989-03-20 1990-04-24 The Grass Valley Group, Inc. Self keyer
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US4967277A (en) * 1989-10-06 1990-10-30 The Grass Valley Group, Inc. Non-linear keyer
US5227863A (en) * 1989-11-14 1993-07-13 Intelligent Resources Integrated Systems, Inc. Programmable digital video processing system
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US5572248A (en) 1994-09-19 1996-11-05 Teleport Corporation Teleconferencing method and system for providing face-to-face, non-animated teleconference environment
KR100423379B1 (ko) * 1995-05-12 2004-07-23 소니 가부시끼 가이샤 키신호생성장치및화상합성장치와,키신호생성방법및화상합성방법
WO1997039581A1 (en) * 1996-04-18 1997-10-23 Campbell Jack J Method and apparatus for presenting in a computer display images representing remote moving objects
US5764306A (en) * 1997-03-18 1998-06-09 The Metaphor Group Real-time method of digitally altering a video data stream to remove portions of the original image and substitute elements to create a new image
US6137372A (en) * 1998-05-29 2000-10-24 Silicon Laboratories Inc. Method and apparatus for providing coarse and fine tuning control for synthesizing high-frequency signals for wireless communications
US6574288B1 (en) 1998-05-29 2003-06-03 Silicon Laboratories Inc. Method and apparatus for adjusting a digital control word to tune synthesized high-frequency signals for wireless communications
US6308055B1 (en) * 1998-05-29 2001-10-23 Silicon Laboratories, Inc. Method and apparatus for operating a PLL for synthesizing high-frequency signals for wireless communications
US6233441B1 (en) 1998-05-29 2001-05-15 Silicon Laboratories, Inc. Method and apparatus for generating a discretely variable capacitance for synthesizing high-frequency signals for wireless communications
US6150891A (en) * 1998-05-29 2000-11-21 Silicon Laboratories, Inc. PLL synthesizer having phase shifted control signals
US6327463B1 (en) 1998-05-29 2001-12-04 Silicon Laboratories, Inc. Method and apparatus for generating a variable capacitance for synthesizing high-frequency signals for wireless communications
US6304146B1 (en) 1998-05-29 2001-10-16 Silicon Laboratories, Inc. Method and apparatus for synthesizing dual band high-frequency signals for wireless communications
US6167245A (en) * 1998-05-29 2000-12-26 Silicon Laboratories, Inc. Method and apparatus for operating a PLL with a phase detector/sample hold circuit for synthesizing high-frequency signals for wireless communications
US6226506B1 (en) 1998-05-29 2001-05-01 Silicon Laboratories, Inc. Method and apparatus for eliminating floating voltage nodes within a discreetly variable capacitance used for synthesizing high-frequency signals for wireless communications
US6147567A (en) * 1998-05-29 2000-11-14 Silicon Laboratories Inc. Method and apparatus for providing analog and digitally controlled capacitances for synthesizing high-frequency signals for wireless communications
US6311050B1 (en) 1998-05-29 2001-10-30 Silicon Laboratories, Inc. Single integrated circuit phase locked loop for synthesizing high-frequency signals for wireless communications and method for operating same
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US6563953B2 (en) 1998-11-30 2003-05-13 Microsoft Corporation Predictive image compression using a single variable length code for both the luminance and chrominance blocks for each macroblock
US6983018B1 (en) 1998-11-30 2006-01-03 Microsoft Corporation Efficient motion vector coding for video compression
DE19941644A1 (de) * 1999-08-27 2001-03-01 Deutsche Telekom Ag Verfahren zur echtzeitfähigen Segmentierung von Videoobjekten bei bekanntem stationären Bildhintergrund
GB0004501D0 (en) * 2000-02-26 2000-04-19 Orad Hi Tec Systems Ltd Methods and apparatus for enhancement of live events broadcast by superimposing animation, based on real events
US6323735B1 (en) 2000-05-25 2001-11-27 Silicon Laboratories, Inc. Method and apparatus for synthesizing high-frequency signals utilizing on-package oscillator circuit inductors
US6667774B2 (en) 2001-11-02 2003-12-23 Imatte, Inc. Method and apparatus for the automatic generation of subject to background transition area boundary lines and subject shadow retention
WO2003053066A1 (en) 2001-12-17 2003-06-26 Microsoft Corporation Skip macroblock coding
US7892183B2 (en) * 2002-04-19 2011-02-22 Pelikan Technologies, Inc. Method and apparatus for body fluid sampling and analyte sensing
US7224731B2 (en) * 2002-06-28 2007-05-29 Microsoft Corporation Motion estimation/compensation for screen capture video
EP1621010A1 (de) * 2003-05-02 2006-02-01 Allan Robert Staker Interaktives system und verfahren zur videokomposition
US7499495B2 (en) * 2003-07-18 2009-03-03 Microsoft Corporation Extended range motion vectors
US7738554B2 (en) 2003-07-18 2010-06-15 Microsoft Corporation DC coefficient signaling at small quantization step sizes
US7426308B2 (en) * 2003-07-18 2008-09-16 Microsoft Corporation Intraframe and interframe interlace coding and decoding
US10554985B2 (en) 2003-07-18 2020-02-04 Microsoft Technology Licensing, Llc DC coefficient signaling at small quantization step sizes
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US7317839B2 (en) * 2003-09-07 2008-01-08 Microsoft Corporation Chroma motion vector derivation for interlaced forward-predicted fields
US7623574B2 (en) 2003-09-07 2009-11-24 Microsoft Corporation Selecting between dominant and non-dominant motion vector predictor polarities
US7724827B2 (en) * 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US7620106B2 (en) 2003-09-07 2009-11-17 Microsoft Corporation Joint coding and decoding of a reference field selection and differential motion vector information
US8064520B2 (en) 2003-09-07 2011-11-22 Microsoft Corporation Advanced bi-directional predictive coding of interlaced video
US7092576B2 (en) * 2003-09-07 2006-08-15 Microsoft Corporation Bitplane coding for macroblock field/frame coding type information
US7567617B2 (en) * 2003-09-07 2009-07-28 Microsoft Corporation Predicting motion vectors for fields of forward-predicted interlaced video frames
US7606308B2 (en) * 2003-09-07 2009-10-20 Microsoft Corporation Signaling macroblock mode information for macroblocks of interlaced forward-predicted fields
US7577200B2 (en) 2003-09-07 2009-08-18 Microsoft Corporation Extended range variable length coding/decoding of differential motion vector information
US7599438B2 (en) * 2003-09-07 2009-10-06 Microsoft Corporation Motion vector block pattern coding and decoding
US7616692B2 (en) 2003-09-07 2009-11-10 Microsoft Corporation Hybrid motion vector prediction for interlaced forward-predicted fields
US7209577B2 (en) * 2005-07-14 2007-04-24 Logitech Europe S.A. Facial feature-localized and global real-time video morphing
US9077960B2 (en) * 2005-08-12 2015-07-07 Microsoft Corporation Non-zero coefficient block pattern coding
CN101351605A (zh) * 2005-10-07 2009-01-21 达蒙·斯通 混凝土砖瓦系统及其制造方法
US20070230794A1 (en) * 2006-04-04 2007-10-04 Logitech Europe S.A. Real-time automatic facial feature replacement
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US10332560B2 (en) 2013-05-06 2019-06-25 Noo Inc. Audio-video compositing and effects
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US4160994A (en) * 1975-06-07 1979-07-10 Sonex International Corp. Luminance key amplifier
JPS54130829A (en) * 1978-04-03 1979-10-11 Nippon Hoso Kyokai <Nhk> Locus display unit of mobile object on television screen
JPS57173286A (en) * 1981-04-17 1982-10-25 Matsushita Electric Ind Co Ltd Picture synthesizer
JPS589476A (ja) * 1981-07-09 1983-01-19 Sony Corp キー信号調整装置
JPS5846783A (ja) * 1981-09-12 1983-03-18 Sony Corp クロマキ−装置
ATE22767T1 (de) * 1982-07-23 1986-10-15 British Telecomm Uebertragung von daten.
US4568981A (en) * 1983-04-08 1986-02-04 Ampex Corporation Font recall system and method of operation
DE3319438A1 (de) 1983-05-28 1984-11-29 Robert Bosch Gmbh, 7000 Stuttgart System zur verminderung des rauschens in einem fernsehsignal
JPS6080388A (ja) * 1983-10-11 1985-05-08 Sony Corp ノイズ除去回路
JPS60190078A (ja) * 1984-03-12 1985-09-27 Fuji Photo Film Co Ltd 画像合成装置
JPS60194696A (ja) * 1984-03-15 1985-10-03 Toshiba Corp デイジタルクロマキ−装置
CA1287161C (en) * 1984-09-17 1991-07-30 Akihiro Furukawa Apparatus for discriminating a moving region and a stationary region in a video signal

Also Published As

Publication number Publication date
DE3789193T2 (de) 1994-09-29
AU8008287A (en) 1988-04-28
JP2662957B2 (ja) 1997-10-15
EP0264965A3 (de) 1991-02-06
JPS63198485A (ja) 1988-08-17
CA1314097C (en) 1993-03-02
US4800432A (en) 1989-01-24
EP0264965A2 (de) 1988-04-27
AU593397B2 (en) 1990-02-08
EP0264965B1 (de) 1994-03-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee