DE69228693D1 - Schattierungsvorrichtung für steuersignal - Google Patents

Schattierungsvorrichtung für steuersignal

Info

Publication number
DE69228693D1
DE69228693D1 DE69228693T DE69228693T DE69228693D1 DE 69228693 D1 DE69228693 D1 DE 69228693D1 DE 69228693 T DE69228693 T DE 69228693T DE 69228693 T DE69228693 T DE 69228693T DE 69228693 D1 DE69228693 D1 DE 69228693D1
Authority
DE
Germany
Prior art keywords
key signal
gain
effects
lens
control 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 - Fee Related
Application number
DE69228693T
Other languages
English (en)
Other versions
DE69228693T2 (de
Inventor
David Fellinger
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.)
Ultimatte Corp
Original Assignee
Ultimatte Corp
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 Ultimatte Corp filed Critical Ultimatte Corp
Application granted granted Critical
Publication of DE69228693D1 publication Critical patent/DE69228693D1/de
Publication of DE69228693T2 publication Critical patent/DE69228693T2/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)
  • Television Systems (AREA)
  • Exposure Control For Cameras (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Golf Clubs (AREA)
  • Television Signal Processing For Recording (AREA)
DE69228693T 1991-09-10 1992-09-08 Schattierungsvorrichtung für steuersignal Expired - Fee Related DE69228693T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/757,234 US5202762A (en) 1991-09-10 1991-09-10 Method and apparatus for applying correction to a signal used to modulate a background video signal to be combined with a foreground video signal
PCT/US1992/007582 WO1993005611A1 (en) 1991-09-10 1992-09-08 Key signal shading system

Publications (2)

Publication Number Publication Date
DE69228693D1 true DE69228693D1 (de) 1999-04-22
DE69228693T2 DE69228693T2 (de) 1999-10-14

Family

ID=25046956

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228693T Expired - Fee Related DE69228693T2 (de) 1991-09-10 1992-09-08 Schattierungsvorrichtung für steuersignal

Country Status (7)

Country Link
US (1) US5202762A (de)
EP (1) EP0604518B1 (de)
AT (1) ATE177893T1 (de)
DE (1) DE69228693T2 (de)
HK (1) HK1011811A1 (de)
TW (1) TW201377B (de)
WO (1) WO1993005611A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3191354B2 (ja) * 1991-11-15 2001-07-23 ソニー株式会社 シェーディング補正回路
DE69416389T2 (de) * 1993-12-20 1999-09-30 Matsushita Electric Ind Co Ltd Digitale Schaltung für automatische Korrektur der Schwarzschattierungseffekte in Kameras
US5666330A (en) * 1994-07-21 1997-09-09 Telecom Solutions, Inc. Disciplined time scale generator for primary reference clocks
FR2741769B1 (fr) * 1995-11-23 1997-12-19 Thomson Broadcast Systems Procede de traitement du signal constitue par un sujet evoluant devant un fond colore et dispositif mettant en oeuvre ce procede
FR2741770B1 (fr) * 1995-11-23 1998-01-02 Thomson Broadcast Systems Procede de calcul d'une cle de decoupe d'un sujet evoluant devant un fond colore et dispositif mettant en oeuvre ce procede
US5812214A (en) * 1996-03-14 1998-09-22 Sierra Video Systems, Inc. Apparatus and method for compositing video images
US5742354A (en) * 1996-06-07 1998-04-21 Ultimatte Corporation Method for generating non-visible window edges in image compositing systems
US6744826B2 (en) * 1999-03-03 2004-06-01 Intel Corporation AGC window detector
US6469747B1 (en) * 1999-09-02 2002-10-22 Da Vinco Systems, Inc. Parabolic mixer for video signals
US6912313B2 (en) * 2001-05-31 2005-06-28 Sharp Laboratories Of America, Inc. Image background replacement method
US7508455B2 (en) * 2004-03-26 2009-03-24 Ross Video/Live Production Technology Method, system, and device for automatic determination of nominal backing color and a range thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588338A (en) * 1969-03-21 1971-06-28 Rca Corp Gamma correction and shading modulation circuitry for a television camera
US4121253A (en) * 1976-08-20 1978-10-17 Vital Industries, Inc. Video special effects generator
US4301472A (en) * 1980-04-17 1981-11-17 Damox Laboratories, Inc. Video display system with shading circuit for selectively varying intensity of video display
JPS58150385A (ja) * 1981-10-31 1983-09-07 Fujitsu General Ltd クロマキ−信号発生装置
JPS58117787A (ja) * 1981-12-30 1983-07-13 Sony Corp クロマキ−装置
GB8423654D0 (en) * 1984-09-19 1984-10-24 Electrocraft Consultants Ltd Colour separation overlay
JP2542578B2 (ja) * 1986-03-25 1996-10-09 株式会社東芝 シエ−デイング補正信号発生回路
US5032901A (en) * 1988-06-28 1991-07-16 Petro Vlahos Backing color and luminance nonuniformity compensation for linear image compositing
DE3932757C2 (de) * 1989-09-30 1998-07-23 Philips Broadcast Television S Verfahren und Anordnung zur Ableitung eines Stanzsignals
US5157497A (en) * 1991-02-25 1992-10-20 Matsushita Electric Industrial Co., Ltd. Method and apparatus for detecting and compensating for white shading errors in a digitized video signal

Also Published As

Publication number Publication date
DE69228693T2 (de) 1999-10-14
EP0604518A1 (de) 1994-07-06
TW201377B (de) 1993-03-01
EP0604518A4 (de) 1994-10-19
HK1011811A1 (en) 1999-07-16
WO1993005611A1 (en) 1993-03-18
US5202762A (en) 1993-04-13
EP0604518B1 (de) 1999-03-17
ATE177893T1 (de) 1999-04-15

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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