WO1997047130A1 - Plateau virtuel mobile - Google Patents

Plateau virtuel mobile Download PDF

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Publication number
WO1997047130A1
WO1997047130A1 PCT/ES1997/000141 ES9700141W WO9747130A1 WO 1997047130 A1 WO1997047130 A1 WO 1997047130A1 ES 9700141 W ES9700141 W ES 9700141W WO 9747130 A1 WO9747130 A1 WO 9747130A1
Authority
WO
WIPO (PCT)
Prior art keywords
computer
cameras
camera
virtual
background
Prior art date
Application number
PCT/ES1997/000141
Other languages
English (en)
Spanish (es)
Inventor
Rafael Calvo Beca
Original Assignee
Rafael Calvo Beca
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 Rafael Calvo Beca filed Critical Rafael Calvo Beca
Publication of WO1997047130A1 publication Critical patent/WO1997047130A1/fr

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
    • H04N5/28—Mobile studios
    • 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

Definitions

  • a Mobile Unit is usually used that carries a realization control and transports cameras that are taken out of the vehicle to capture the images in scenarios
  • SUBSTITUTE SHEET (RULE 26) natural, whether exterior or interior (sporting events, political events, etc.).
  • Virtual techniques lend breadth, variety and richness to the sets, fully surpassing the real scenarios that could be transported in a vehicle and that would hardly cover the minimums required on television.
  • the MOBILE VIRTUAL DISH consists of the merger of a Mobile Unit equipped with realization control and cameras and a closed television studio, in which new virtual scenography techniques are applied.
  • a blue plastic laminate is applied to the walls and floor of the studio, which solves the traditional problems involved in painting, especially on the floor of the plate, achieving a permanently homogeneous blue.
  • the MOBILE VIRTUAL PLATE represents an important step forward in television production, given the new applications it gives rise to and the cost savings it represents. Here are some new production formulas.
  • the virtual stage can be as important and worthy as you want, homogeneous throughout the same soccer championship or a cycling tour, acoustically isolated from public address systems and ambient noise and without the risk of sound instrument couplings.
  • a series of programs could be produced - contest or debate - with the participation in each of people from different geographical locations.
  • the vehicle that has to be chartered as a MOBILE VIRTUAL PLATE is the gooseneck semi-trailer, since it allows an interior height greater than that provided by the remaining semi-trailers or truck platforms.
  • the trailers would also be worth the height, but they cannot be carried directly by a tractor unit.
  • the maximum gauge is always 4 meters, but the lowest part is 84 cm. ground. (See drawing 6)
  • SUBSTITUTE SHEET (RULE 26) The study that gives rise to the expanded vehicle is therefore a room of a minimum of 7 meters long by 6.20 m. wide and a height in the lowest place of 2.50 m. They are the precise measures for the intended purposes and the techniques employed. The virtual decoration ends up providing the desired and necessary dimensions for each program.
  • Walls and floor throughout this area form a kind of cyclorama, without corners or shadows. They are coated with a plastic laminate that is washable and provides a homogeneous blue in all its parts.
  • the studio is soundproofed by thick polyurethane sheets, which completely isolate it from the outside.
  • the entire ceiling and walls that do not enter the recording field are acoustically conditioned by means of foam rubber sheets.
  • a closed plate of the dimensions allowed by the chosen vehicle would hardly withstand a conventional incandescent lighting. It would require a maximum power generator set - located in another truck - to supply all the electric current they consume
  • SUBSTITUTE SHEET (RULE 26) the light bulbs and the precise air conditioning equipment to compensate for the heat given off by them.
  • Fluorescent lighting does not incur such inconveniences. It is undoubtedly one of the decisive factors that make this project viable. Does not require high plate height. Their screens can be suspended directly from the ceiling and be very close to the "actors" since they barely give off heat.
  • Light consumption is drastically reduced compared to traditional lighting.
  • the entire plate illuminates homogeneously at about 1,000 lux with less than one thousand watts. Fluorescent lighting is also diffuse by nature, as a virtual study requires.
  • the generator set can be compact, relatively small, and carried at one end of the same vehicle. Its main function will be to supply the air conditioning, a task facilitated in the absence of large heat sources.
  • the fluorescent lighting allows you to enjoy a pleasant room temperature.
  • the realization control is located at one end of the study. (See drawing 1.1)
  • Its central core is a computer equipped with different cards. As minimum requirements, a Pentium computer of 16 Mb of Ram and 100 MHz, with quad-speed CD-ROM.
  • the personal computer serves the background or decorated images, which is known by background.
  • SUBSTITUTE SHEET (RULE 26) • Level 1. Using the SVGA card of the computer. To pass this signal to video, you must use a complementary device that is a VGA to PAL converter. To avoid that, at each change of plane, the background is constructed in sight, the previous fund is frozen and replaced once it has finished forming. Limitations: there is neither movement nor screen in the scenery.
  • Two video cards are used, a first in video server functions, which is able to dump funds with movements, at the rate of twenty-five frames per second, and another second that covers the function of overlay, embedding a screen on the background.
  • the output signal is composite video.
  • Level 3 The quality of the cards is the only difference with the previous level.
  • the output is in components or YUV.
  • the computer has two hard drives. One is dedicated exclusively to the management of the system and the other to save the different frames of each background, which is previously taken from the CD-ROM.
  • the images to embed on the screen come from any source: a player magnetoscope or a signal from a Mobile Unit. (See drawing 1.2)
  • the director manages the computer through a special camera control keyboard -interface of its own design-. (See drawing 1.2 for fit into the system).
  • FIGS 2 and 3 reproduce, respectively, the keyboard diagram and the printed circuit board.
  • the computer carries out the orders corresponding to both the positioner and the lens of the affected camera, which is thus prepared for the following plane, placing the camera in the pan (horizontal) and tilt (vertical) position and the lens in the Zoom and focus required.
  • the computer When the filmmaker subsequently clicks on that camera, the computer will know the frame it has and will provide the corresponding background.
  • the filmmaker would give the framing orders to the camera operators, also pressing the key corresponding to the order given so that the computer had knowledge of the position of the cameras at all times.
  • SUBSTITUTE SHEET (RULE 26) Four more keys have been arranged under the camera 4 key, which will be used to order certain movements within a certain background plane: for example, lowering or raising a screen, starting or stopping a moving element , etc.
  • a fourth camera allows you to coordinate, through special software, the zoom and pan movements of the camera (while it is punctured) with the previously recorded backgrounds corresponding to those movements. It is operated from the touch screen of a second computer, equipped with a video card, Fast DPR type, and a powerful dedicated hard disk.
  • the process is as follows: from the keyboard the filmmaker notifies the computer which camera and which plane he wishes, the computer sends the background signal that corresponds to the requested plane and asks the selector to give way to the camera's foreground signal chosen
  • the background and foreground signals reach the chromakey inlay where they are mixed.
  • the mixed signal is recorded on a magnetoscope, goes to a monitor or set of them or sent out of control for external use.
  • the foreground signal is in RGB or YUV, to ensure the quality of the mix in the embedding.
  • the embedding must correspond to the type of signals that come to it, be it composite video, Y / C, RGB or YUV.
  • the realization control (see drawing 5) is completed with a monitor for each camera, a monitor for the image to be embedded on the screen, an output monitor and a television.
  • the screen and output signals are passed to the plate, to two other monitors.
  • the system requires a synchronism generator to make all signals compatible. Its quality is controlled with an oscilloscope and waveform monitor.
  • the audio requires a whole system that runs in parallel with the video. Different microphones are available in the studio and are completed with various sound sources in the control, such as a double deck and a compact disc reader.
  • the computer provides special sonic effects sicronized with some images.
  • An audio table receives the different input signals and mixes them according to various criteria of functionality and aesthetics. A signal will go to a presenter's hearing aid, through which the filmmaker can also issue orders.
  • communications -in video and audio- may be established with other outdoor mobile units, with which it is convenient to coordinate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Or Creating Images (AREA)

Abstract

Il est formé par un véhicule préparé pour les retransmissions télévisées, dans lequel se trouve un studio de télévision fermé, doté d'un plateau avec fond de chromakey, éclairage, caméras et contrôle de production avec toute la technologie nécessaire à la réalisation de ce type de programmes virtuels. Le contrôle de réalisation se compose d'un clavier/interface avec l'ordinateur, où on choisit le plan prévu pour chaque caméra; un sélecteur auquel sont connectées les caméras et qui laisse passer le signal de premier plan requis par l'ordinateur; un ordinateur qui choisit le signal de premier plan et lit dans sa mémoire le signal d'arrière plan qui correspond à ce signal déterminé; et un mélangeur où sont mélangés les deux signaux.
PCT/ES1997/000141 1996-06-04 1997-06-03 Plateau virtuel mobile WO1997047130A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP9601235 1996-06-04
ES9601235 1996-06-04

Publications (1)

Publication Number Publication Date
WO1997047130A1 true WO1997047130A1 (fr) 1997-12-11

Family

ID=8295033

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1997/000141 WO1997047130A1 (fr) 1996-06-04 1997-06-03 Plateau virtuel mobile

Country Status (1)

Country Link
WO (1) WO1997047130A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2340328A (en) * 1998-08-04 2000-02-16 Paul Anthony Smith Virtual interior design set

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100066A (en) * 1981-05-30 1982-12-15 Bosch Gmbh Robert Outside television broadcast van
US5280985A (en) * 1993-01-22 1994-01-25 Morris Richard B Method and apparatus for mobile elevatable expandable viewing studio
US5353392A (en) * 1990-04-11 1994-10-04 Multi Media Techniques Method and device for modifying a zone in successive images
WO1995025399A1 (fr) * 1994-03-14 1995-09-21 Scitex America Corporation Systeme d'incrustation d'une image dans une suite de donnees video
US5478129A (en) * 1992-10-22 1995-12-26 Kinoshita & Iwahashi Movable photo vehicle
WO1995035627A1 (fr) * 1994-06-22 1995-12-28 Philips Electronics N.V. Systeme de surveillance video

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100066A (en) * 1981-05-30 1982-12-15 Bosch Gmbh Robert Outside television broadcast van
US5353392A (en) * 1990-04-11 1994-10-04 Multi Media Techniques Method and device for modifying a zone in successive images
US5478129A (en) * 1992-10-22 1995-12-26 Kinoshita & Iwahashi Movable photo vehicle
US5280985A (en) * 1993-01-22 1994-01-25 Morris Richard B Method and apparatus for mobile elevatable expandable viewing studio
WO1995025399A1 (fr) * 1994-03-14 1995-09-21 Scitex America Corporation Systeme d'incrustation d'une image dans une suite de donnees video
WO1995035627A1 (fr) * 1994-06-22 1995-12-28 Philips Electronics N.V. Systeme de surveillance video

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHRETIEN P.: "OB15 A digital OB Van for NRK Oslo", INTERNATIONAL BROADCAST ENGINEER, 30 November 1993 (1993-11-30), UNITED KINGDOM, pages 54 - 55, XP002041792 *
SOMMERHÄUSER F.: "Das Virtuelle Studio ; Grundlagen einer neuen Studioproduktionstechnik", FERNSEH UND KINOTECHNIK., vol. 50, no. 1-2, 30 January 1996 (1996-01-30), BERLIN DE, pages 11 - 22, XP000555564 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2340328A (en) * 1998-08-04 2000-02-16 Paul Anthony Smith Virtual interior design set

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