WO2020198823A1 - Sistema e método de captação e projeção de imagem, e, uso do sistema - Google Patents
Sistema e método de captação e projeção de imagem, e, uso do sistema Download PDFInfo
- Publication number
- WO2020198823A1 WO2020198823A1 PCT/BR2020/000006 BR2020000006W WO2020198823A1 WO 2020198823 A1 WO2020198823 A1 WO 2020198823A1 BR 2020000006 W BR2020000006 W BR 2020000006W WO 2020198823 A1 WO2020198823 A1 WO 2020198823A1
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- WO
- WIPO (PCT)
- Prior art keywords
- image capture
- projection system
- cameras
- image
- images
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000011521 glass Substances 0.000 claims description 22
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Classifications
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/60—Memory management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/292—Multi-camera tracking
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
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- 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
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/2224—Studio circuitry; Studio devices; Studio equipment related to virtual studio applications
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- 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
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/28—Mobile studios
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3188—Scale or resolution adjustment
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
- G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/10—Mixing of images, i.e. displayed pixel being the result of an operation, e.g. adding, on the corresponding input pixels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/12—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/12—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
- G09G2340/125—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels wherein one of the images is motion video
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
Definitions
- the invention refers to the field of television production, more specifically to systems and methods of capturing and projecting images, and their use in the TV studio, and the extension of images through virtual projections.
- US patent 6,201,579 describes a position detection device for an object with virtual studio, which comprises providing an object with an emission device and using the device in conjunction with a standard chroma-key background or background for provide the exact position of a TV camera or alone to provide a position for another object or person.
- the patent application WO 1997028654 describes a video system that creates a virtual shadow of an object filmed in front of a blue screen with a main video camera.
- the virtual shadow is created using a second camera located as a virtual light source, this system uses the chroma-key color system.
- a panel or screen is placed as an image, video or virtual graphics, through the presenter who is inside the studio.
- This technique limits the movements of the camera and any wider movement can show the limits of the panel and impair the composition of the image.
- use is restricted to still cameras or with minimal movements.
- the present invention presents a system that allows a virtual image integrated with a real image, executed in real time.
- Figure 1 shows the extension of the scenario using panels of
- Figure 2 shows a perspective view of the scenographic elements such as the glass bottom and LED panels.
- Figure 3 shows a top view of the studio and the conformation of the panels and scenographic elements.
- Figure 4 shows infographics and an animated virtual character inserted in the video by the graphics servers.
- Figure 5 shows the physical layout of the studio, with the anchoring points of the panels.
- Figure 6 shows a configuration of the asymmetric frustrum projection technique.
- Figure 7 shows the distortions of asymmetric frustrum.
- the present invention solves the aforementioned problems of studio size and camera movement by offering a more complete and robust approach, delivering a final image where the viewer is unable to perceive what is real or virtual and executing everything in real time, that is, permissible in live programs.
- LED screens are arranged laterally, perpendicular to the floor and rotated in relation to the bottom window forming an angle of
- This angle may vary, however it must be greater than 90 degrees.
- LED technology was chosen because of its high resolution through other existing technologies. This resolution is higher not only in the number of pixels but also in the intensity of the colors. There is an additional importance in the intensity of the colors due to the incidence of this lighting on the real environment. This effect will contribute to the perception of the presenter's insertion in the virtual environment.
- the background is important to reinforce the effect of inserting the studio in a real environment.
- Two cameras with motion sensors are positioned inside the studio. They have the characteristics of not only tracking movements, but also promoting changes in the lens (zoom and focus, for example). These data are captured and sent to the graphics server that interprets them and, thus, deforms the images captured by the static cameras next to the glass bottom to be displayed on the screens from the perspective of the cameras positioned inside the studio.
- Software is used to generate and provide graphics for projections on LED screens.
- One embodiment of the invention allows the composition of an entirely virtual studio, consisting of LED panels on the walls, ceiling and floor.
- Virtual inserts can be understood as all computer graphics inserted above the image, such as: scoreboards, wallets, objects, characters and graphic elements in general.
- the physical studio consists of an entire front glass wall, and the other opaque walls, behaving transparently.
- the effect sought would be to recreate a 180-degree studio (Panoramic) and, for that, the side walls should be made of glass, or invisible.
- the physical studio can have any desired dimension, and the LED panels are then positioned on each side, rotated approximately 30 degrees, the panel being the hypotenuse of the triangle formed between it, the glass and the wall, with the said angle formed between the wall and the panel.
- the floor made of LED boards allows the alteration of graphics, for displaying images or completing the current floor itself.
- the process for the final effect consists of the following steps: - Capture of images to complement the scene through 1 or 2 or more cameras with wide-angle lens (s);
- stitching which consists of creating a single image overlapping the common areas between the 2 cameras, resulting in a filmed panoramic image
- the panoramic image being sent to the computer graphics system, which projects it on a virtual plane that is removed and scaled to superimpose and match artistically with the real image;
- Each computer graphics system calculates the projective distortion of the panoramic image, which is projected on the LED panels always illustrating the current camera's point of view. In this way the image of the LEDs merges with the real image of the window;
- All video signals need to be adjusted by the TV systems so that the delay is calculated, so that the videos are displayed without delay and in the right order.
- the computer graphics system is installed on servers that are located in the technical center and receives the tracking data from the camera and lens through a connection, such as ethemet.
- the studio can consist of two side LED panels, optionally an LED panel on the floor and a glass window in the background.
- the side panels are perpendicular to the floor and rotated in relation to the bottom window forming an angle of 120 degrees (for correct operation, the angle must be greater than 90 degrees).
- each side panel Behind each side panel is one or more static cameras with one or more wide-angle lenses with a viewing angle close to 180 degrees, pointing out of the studio through the glass window.
- the video captured by each of these cameras is inserted into a processor and sent to the corresponding side panel.
- This processor in addition to the video from the camera behind the side panel, also receives position and lens data from the main studio camera.
- the static camera can have one or more wide-angle lenses.
- the projective distortion process is performed using the asymmetric frustrum projection technique, available and implemented in all software and programming frameworks for computer graphics in real time already known in the art.
- the system receives camera position data in relation to the studio, that is, geolocalizing the camera in the studio, a virtual camera is created with the same characteristics and lens, camera and position changes occurring in real time, this data is duplicated and feeds two virtual systems simultaneously.
- the first system processes everything related to distortions for LED screens.
- the second system (system 2) applies elements of augmented reality.
- the LED panel has a processing time to display the images, therefore, once System 2, responsible for the virtual inserts, needs to be delayed so that System 1 projects the image complementary to the glass on the LED, before the System 2 Capture the image from the studio to make the virtual inserts.
- the delay called “delay”, is variable, being in the range of 3 frames in the worst case.
- the servers in the technical center where the systems are installed, are fed with tracking data from the camera and lens, such as via ethemet or any other compatible means, and with video, for example, via video cables.
- the system is divided into modules: the projective distortion of the panoramic image is calculated by a part of the system that is commercially available software; and the 3D elements inserted in the studio are generated by systems that will not be described here.
- the perception of a virtual window is due to the fact that there is always a temporal coherence between the real image seen through the glass and the complementation of the studio by the LED panels.
- the effect as described generates a perception of a real scenario, much greater than the physical space available with graphical interventions in a fluid way.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computer Graphics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Studio Devices (AREA)
- Studio Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of El Displays (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20782473.1A EP3952267A4 (en) | 2019-03-29 | 2020-02-07 | IMAGE CAPTURE AND PROJECTION SYSTEM AND METHOD, AND USE THEREOF |
KR1020217034872A KR20210142722A (ko) | 2019-03-29 | 2020-02-07 | 이미지 캡쳐 및 투영을 위한 시스템, 시스템의 사용, 그리고 이미지 캡쳐, 투영 및 삽입 방법 |
US17/598,696 US12101573B2 (en) | 2019-03-29 | 2020-02-07 | System for capturing and projecting images, use of the system and method for capturing, projecting and inserting images |
MX2021011873A MX2021011873A (es) | 2019-03-29 | 2020-02-07 | Sistema y metodo de captacion y proyeccion de imagenes y uso del sistema. |
CA3134758A CA3134758A1 (en) | 2019-03-29 | 2020-02-07 | System for capturing and projecting images, use of the system, and method for capturing, projecting and inserting images |
JP2021560355A JP2022529417A (ja) | 2019-03-29 | 2020-02-07 | 画像取得投影システム、該システムの使用及び画像取得投影挿入方法 |
CN202080024813.8A CN113692734A (zh) | 2019-03-29 | 2020-02-07 | 用于采集和投影图像的系统和方法,以及该系统的应用 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR102019006465-0A BR102019006465A2 (pt) | 2019-03-29 | 2019-03-29 | Sistema e método de captação e projeção de imagem, e, uso do sistema. |
BR1020190064650 | 2019-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020198823A1 true WO2020198823A1 (pt) | 2020-10-08 |
Family
ID=72664365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2020/000006 WO2020198823A1 (pt) | 2019-03-29 | 2020-02-07 | Sistema e método de captação e projeção de imagem, e, uso do sistema |
Country Status (9)
Country | Link |
---|---|
US (1) | US12101573B2 (pt) |
EP (1) | EP3952267A4 (pt) |
JP (1) | JP2022529417A (pt) |
KR (1) | KR20210142722A (pt) |
CN (1) | CN113692734A (pt) |
BR (1) | BR102019006465A2 (pt) |
CA (1) | CA3134758A1 (pt) |
MX (1) | MX2021011873A (pt) |
WO (1) | WO2020198823A1 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023094872A1 (en) * | 2021-11-29 | 2023-06-01 | Weta Digital Limited | Increasing dynamic range of a virtual production display |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210266427A1 (en) * | 2020-02-25 | 2021-08-26 | Michael Kidakarn | Chair and chroma key photography backdrop assembly thereof |
DE102022131909B3 (de) | 2022-12-01 | 2024-03-28 | Gero Steffen | Mobiles Bildaufnahmestudio |
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EP3952267A4 (en) | 2022-11-30 |
US20220150386A1 (en) | 2022-05-12 |
MX2021011873A (es) | 2022-01-04 |
CA3134758A1 (en) | 2020-10-08 |
JP2022529417A (ja) | 2022-06-22 |
EP3952267A1 (en) | 2022-02-09 |
US12101573B2 (en) | 2024-09-24 |
CN113692734A (zh) | 2021-11-23 |
BR102019006465A2 (pt) | 2020-10-13 |
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