CN107948466A - A kind of three-dimensional scene construction method and system for video program production - Google Patents
A kind of three-dimensional scene construction method and system for video program production Download PDFInfo
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- CN107948466A CN107948466A CN201711181673.1A CN201711181673A CN107948466A CN 107948466 A CN107948466 A CN 107948466A CN 201711181673 A CN201711181673 A CN 201711181673A CN 107948466 A CN107948466 A CN 107948466A
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- camera
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- video camera
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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
- H04N5/2224—Studio circuitry; Studio devices; Studio equipment related to virtual studio applications
-
- 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
Abstract
The invention discloses a kind of three-dimensional scene construction method and system for video program production, this method comprises the following steps：The display picture and host's image of the multiple LED displays of camera acquisition, the display picture of the multiple LED display form three-dimensional display space；The coordinate position that the video camera is read in timing is sent to Channel server corresponding with the multiple LED display；Coordinate position of each Channel server based on the video camera exports corresponding display picture to corresponding LED display, and the camera site of each display picture and video camera matches；The synthesis picture for including three-dimensional display space and host of the camera acquisition is included to see screen returning.By technical scheme, the mode that visualization makes, edits and broadcasts in real time is realized.
Description
Technical field
The present invention relates to data presentation technique field, and in particular to a kind of three-dimensional scenic for video program production is built
System.
Background technology
Commercial affairs or leisure plan of travel and arrangement of the weather close relation to people.Moreover, with globalization degree
Intensification, can desirably closely follow mondial latest tendency, while can have a better understanding to relevant knowledge,
Especially for be engaged in for the meteorological people of industry that is closely related, in time, efficiently and comprehensively, and with it is a kind of more intuitively
It is particularly important that mode is to obtain relevant information.So in daily life, people are for the whole nation or even weather from all parts of the world
The attention rate of change is higher and higher, and in this background, Meteorological Change program must closely follow Times ' Demand, comes using new and high technology auxiliary
Program making and report are helped, increases programme content and making and reports the interesting, interactive, direct and rich of form
Etc., the weather content information for meeting people's demand is presented with optimised form.
At present, the making of the whole nation or even the Meteorological Change program in worldwide and report environment generally use traditional void
Intend studio.In virtual studio, host can only rely on viewing foldback screen opposite with virtual scene to observe oneself
Position, can disperse the notice of host during report, increase the fault rate that content is reported, while be also possible that and walk
With the unmatched situation of virtual content, overall report effect is influenced.And in virtual studio, the making and report of program
Also need to carry out in real time or the later stage it is stingy as synthesis, clothing and accessories to host etc. are all restricted.
AR panoramas emulation studio builds environment using multiple LED screens, dynamic catch system with reference to infrared and confirms video camera
Real time position, ensures that the picture that video camera photographs is the correct three dimensions of physics perspective relation forever, camera lens is presented more
It is abundant；And real-time three-dimensional suture can be carried out to virtual content, host, which is in studio, can intuitively see void
Intend the content of scene；In visible environment, can also easily carry out seamless cooperation and interaction exactly, walk it is more flexible from
So, overall report effect is lifted；In addition, LED screen self-luminous, the requirement to studio lighting is low, to the clothing of host and
Accessories all do not limit, and can also freely add true stage property and carry out various interactions with virtual scene；Moreover, additionally it is possible to be
Host provides ambient light, make host and virtual scene more natural be fused together, the increase sense of reality；Finally, system is stood
The transparent effect of body can allow content to present to audience in a manner of more interesting and is abundant.
Scene is presented using the mode of projection in traditional virtual studio, and brightness is low, and precision is low, to environmental requirement height；
Also need to scratch as synthesis in virtual studio, either still the later stage scratches picture in real time, to the clothing and accessories of host
It is all restricted；Host can only rely on viewing foldback screen to observe the relative position of oneself and virtual scene, in the process of report
In can take sb's mind off sth, increase content report fault rate, while be also possible that walk and the unmatched situation of virtual content,
Influence overall report effect.
The content of the invention
In order to solve the above situation, studio is emulated using AR panoramas, solves the existing Meteorological Change program making in China with broadcasting
The problem of virtual content cannot be directly visible when going out, thus allow easier program making, broadcast of host and it is interactive more
Add true nature, finally allow common people to recognize weather condition and hazard forecasting etc. and oneself in time in a manner of directly perceived and is interesting
Personal relevant weather information, smoothly carries out daily life, production and commercial activity.
In order to solve the above technical problems, the present invention provides a kind of three-dimensional scenic structure side for video program production
Method, this method comprise the following steps：
1) display picture and host's image of the multiple LED displays of camera acquisition, the multiple LED display
Display picture form three-dimensional display space；
2) coordinate position for periodically reading the video camera is sent to channel service corresponding with the multiple LED display
Device；
3) coordinate position of each Channel server based on the video camera exports corresponding display to corresponding LED display
The camera site of picture, each display picture and video camera matches；
4) the synthesis picture for including three-dimensional display space and host of the camera acquisition is included
Return and see screen；
Wherein, the display picture of each Channel server output all has corresponding locus coordinate.
According to an embodiment of the invention, it is preferred that there is a virtual camera in the three-dimensional display space, should
Virtual camera position matches with real camera position so that the display picture obtained based on virtual camera position
It is identical with the display picture that actual camera position obtains；
Each Channel server determines to export to corresponding LED display according to the coordinate position of the virtual camera
Display picture.
According to an embodiment of the invention, it is preferred that the Channel server is calculated according to the position of video camera by algorithm
Camera lens coordinate position after being calibrated, and it is defeated to corresponding LED display according to the camera lens coordinate position
Go out corresponding display picture.
According to an embodiment of the invention, it is preferred that read by the infrared camera of infrared location system and be located at video camera
The position of multiple infrared markers points at top, determines the coordinate position of the video camera.
According to an embodiment of the invention, it is preferred that an AR prospect is built outside the synthesis picture, in step 5)
The synthesis picture and the three-dimensional suture of the AR prospects are obtained into complete three-dimensional display, described return is shown in and sees screen
On.
In order to solve the above technical problems, the present invention provides a kind of three-dimensional scenic for video program production to build system
System, the system include：Video camera, multiple LED displays, infrared location system, it is dynamic catch computer and return see screen；
The display picture and host's image of the multiple LED displays of camera acquisition, the multiple LED display
Display picture forms three-dimensional display space；
The image of video camera described in infrared location system timing acquiring, and be sent to described move and catch computer, it is dynamic to catch computer root
The coordinate position of video camera is calculated according to the image of the video camera, and the coordinate position is sent to and the multiple LED
The corresponding Channel server of display screen；
Coordinate position of each Channel server based on the video camera exports corresponding display picture to corresponding LED display
The camera site of face, each display picture and video camera matches；
The synthesis picture for including three-dimensional display space and host of collection is included returning by the video camera
See screen；
Wherein, the display picture of each Channel server output all has corresponding locus coordinate.
According to an embodiment of the invention, it is preferred that there is a virtual camera in the three-dimensional display space, should
Virtual camera position matches with real camera position so that the display picture obtained based on virtual camera position
It is identical with the display picture that actual camera position obtains；
Each Channel server determines to export to corresponding LED display according to the coordinate position of the virtual camera
Display picture.
According to an embodiment of the invention, it is preferred that the Channel server is calculated according to the position of video camera by algorithm
Camera lens coordinate position after being calibrated, and it is defeated to corresponding LED display according to the camera lens coordinate position
Go out corresponding display picture.
According to an embodiment of the invention, it is preferred that the coordinate position of the video camera is gathered by infrared location system, described
Infrared location system is made of eight infrared cameras at the top of display space.
According to an embodiment of the invention, it is preferred that read by the infrared camera multiple at the top of video camera
The position of infrared markers point, determines the coordinate position of the video camera.
Following technique effect is achieved by technical scheme：
(1) the real-time visible of virtual content is realized.Provide the instrument that visualization makes, edits and broadcasts in real time.
(2) real-time interactive of host and virtual content is realized.Provide visual interaction content.
(3) realize LED screen and make virtual studio.It is simple, low to environment, stage property and dress code to provide lighting
And the virtual shooting environmental that fidelity is high.
(4) realize shooting picture and the real-time of effect shows and export.
Brief description of the drawings
Fig. 1 is the three-dimensional scene construction method figure of the present invention
Fig. 2 is present system composition figure
Embodiment
<Three-dimensional scene construction method>
Such as Fig. 1, the invention discloses a kind of three-dimensional scene construction method for video program production, this method include with
Lower step：
1) display picture and host's image of the multiple LED displays of camera acquisition, the multiple LED display
Display picture form three-dimensional display space；
2) coordinate position for periodically reading the video camera is sent to channel service corresponding with the multiple LED display
Device；
3) coordinate position of each Channel server based on the video camera exports corresponding display to corresponding LED display
The camera site of picture, each display picture and video camera matches；
4) the synthesis picture for including three-dimensional display space and host of the camera acquisition is included
Return and see screen；
Wherein, the display picture of each Channel server output all has corresponding locus coordinate.
There is a virtual camera in the three-dimensional display space, the virtual camera position is with truly taking the photograph
Camera position matches so that is obtained based on the display picture that virtual camera position obtains with actual camera position
Display picture is identical；
Each Channel server determines to export to corresponding LED display according to the coordinate position of the virtual camera
Display picture.
The camera lens coordinate after calibration is calculated by algorithm according to the position of video camera for the Channel server
Position, and corresponding display picture is exported to corresponding LED display according to the camera lens coordinate position.
The position of multiple infrared markers points at the top of video camera is read by the infrared camera of infrared location system,
Determine the coordinate position of the video camera.
An AR prospect is built outside the synthesis picture, by before the synthesis picture and the AR in step 5)
The three-dimensional suture of scape obtains complete three-dimensional display, is shown in described return and sees on screen.
<Three-dimensional scenic builds system>
Such as Fig. 2, the invention discloses a kind of three-dimensional scenic for video program production to build system, which includes：
Video camera, multiple LED displays, infrared location system, it is dynamic catch computer and return see screen；
The display picture and host's image of the multiple LED displays of camera acquisition, the multiple LED display
Display picture forms three-dimensional display space；
The image of video camera described in infrared location system timing acquiring, and be sent to described move and catch computer, it is dynamic to catch computer root
The coordinate position of video camera is calculated according to the image of the video camera, and the coordinate position is sent to and the multiple LED
The corresponding Channel server of display screen；
Coordinate position of each Channel server based on the video camera exports corresponding display picture to corresponding LED display
The camera site of face, each display picture and video camera matches；
The synthesis picture for including three-dimensional display space and host of collection is included returning by the video camera
See screen；
Wherein, the display picture of each Channel server output all has corresponding locus coordinate.
There is a virtual camera in the three-dimensional display space, the virtual camera position is with truly taking the photograph
Camera position matches so that is obtained based on the display picture that virtual camera position obtains with actual camera position
Display picture is identical；
Each Channel server determines to export to corresponding LED display according to the coordinate position of the virtual camera
Display picture.
The camera lens coordinate after calibration is calculated by algorithm according to the position of video camera for the Channel server
Position, and corresponding display picture is exported to corresponding LED display according to the camera lens coordinate position.
The coordinate position of the video camera is gathered by infrared location system, and the infrared location system is by positioned at display space
Eight infrared cameras composition at top.
The position of multiple infrared markers points at the top of video camera is read by the infrared camera, determines described take the photograph
The coordinate position of camera.
Such as Fig. 2, for the system in the virtual three dimensional space built with three pieces of LED screens, each piece of LED screen is furnished with a passage
Server, three Channel servers are uniformly controlled by a master control server.Certainly three pieces of LED displays here and three it is logical
Road server is simply illustrated, and can increase or reduce the quantity of LED display and Channel server as needed, each piece
LED screen is furnished with a Channel server.Infrared camera (the infrared dynamic part for catching real-time positioning system) is pacified by reading
The position of infrared markers point at the top of video camera, the video camera that shooting is obtained (are used to gather virtual three dimensional space picture
Face and host's image, obtain a virtual three dimensional space for containing host) positional information is transmitted to by the network switch
It is dynamic to catch computer, it is dynamic to catch computer the camera position data after calculating are separately sent to different Channel servers, make each
Channel server display content has corresponding locus coordinate, by the adjustment of algorithm mark point and camera lens
Real space error is corrected, and ensures the camera position parameter of true environment with Virtual Space camera (in Virtual Space
One virtual camera is set, so as to the position according to virtual camera so that display and actual camera in each LED screen
The three-dimensional picture that shooting angle matches) position precisely matches.The system support more thermal cameras to video camera into
Row positioning, when switching real camera position, the infrared dynamic system of catching can read the coordinate information of real camera in real time, be used for
The corresponding virtual camera of virtual three dimensional space uses, and makes the three dimensions picture that each piece of LED screen is shown and true shooting
Machine seat in the plane (or visual angle) matches, it is achieved thereby that seamless split Complete three-dimensional Virtual Space, obtains including by three LED displays
The Virtual Space of display and the Complete three-dimensional Virtual Space picture of host's image construction.AR rendering servers are by AR foreground informations
(foreground information just refers to the virtual content by being superimposed again in shooting picture) is implanted in overall picture, and signal passes through video
Distributor and HDMI converter are eventually displayed in return and see on screen.
<Embodiment>
Present system is all-digital signal, finally presents in LED screen, is shot with video camera.Inputted with video source
The system of the outer video input of interface, high definition, the input and output of backward compatible full standard definition signal.System is defeated with the outer video of activity
Enter, main-engine control desk with high performance, high-performance rendering engine, video camera etc..
Show that a variety of materials are supported in space：
1. the input of 8K pictures is supported to be used as display environment.Picture can with zoom, move up and down adjustment position
Put, quickly make different scene environments；
2. support that access uses 4K videos with playing as display environment in real time, can be used for environment roaming virtual, characteristic
Sight spot presentation etc.；It can also open a window in the environment, for event replay etc.；
3. supporting threedimensional model to be used as display environment, real-time particle effect can be added, moulds powerful ring true to nature
Border reduction effect, such as the weather such as dynamic sleet and shadow change etc..
4. supporting the implantation of AR prospects, related picture and text, video, animation, threedimensional model can be used to be shown in the true people of shooting
In front of thing, reach and show the effect echoed before and after simulated environment with rear, make shooting picture more rich in spatial impression；Can also same field
Personage in scape carries out interactive.
In terms of programme content, the weather phenomena such as wind and frost sleet, thunder and lightning hail can be really simulated, it is high performance to render
Engine can render high-precision picture true to nature.
By the above method and system, following effect is obtained：
(1) host when host interacts with virtual content in Meteorological Change performance recording is realized cannot intuitively to observe
The problem of to virtual objects and the actual position of scene.For example host is when carrying out the weather explanation in somewhere, it is possible to directly perceived
See the regional location to be explained, finger can accurately put position of some point, and walk also more accurate and flexible.
(2) need not carry out scratching in recording process colourful virtual as that can create in the background layer of host
Content, has saved hardware cost, reduces the difficulty of maintenance and operation.And to the clothing of host without particular/special requirement, including
The material of color and jewelry.
(3) a real three dimensions is built in 3 or 4 face LED screens of plane, determines to image using infrared positioning
Seat in the plane is put, and is ensured in camera position, and the content that LED is shown makes corresponding distortion adjustment, ensures what is seen in camera position
Picture is that perspective is correct undistorted jointless.
(4) because LED screen itself shines, an ambient light can be provided to host, makes host more natural
Be dissolved into virtual environment.
(5) scene of danger need not be reached by presiding over, and live signal can allow host to ride to a video camera all the way
Being reported in real-time environment on the spot, can more embody real weather influence with abundant sleet particle effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement for being made etc., should all protect the guarantor in the present invention
Within the scope of shield.
Claims (10)
1. a kind of three-dimensional scene construction method for video program production, this method comprises the following steps：
1) display picture and host's image of the multiple LED displays of camera acquisition, the multiple LED display are shown
Show that picture forms three-dimensional display space；
2) coordinate position for periodically reading the video camera is sent to Channel server corresponding with the multiple LED display；
3) coordinate position of each Channel server based on the video camera exports corresponding display picture to corresponding LED display
The camera site of face, each display picture and video camera matches；
4) the synthesis picture for including three-dimensional display space and host of the camera acquisition is included seeing returning
Screen；
Wherein, the display picture of each Channel server output all has corresponding locus coordinate.
2. according to the method described in claim 2, having a virtual camera in the three-dimensional display space, this is virtual
Video camera position matches with real camera position so that the display picture and reality obtained based on virtual camera position
The display picture that border video camera position obtains is identical；
Each Channel server is determined to export to corresponding LED display and shown according to the coordinate position of the virtual camera
Picture.
3. method according to claim 1 or 2, the Channel server is calculated according to the position of video camera by algorithm
Camera lens coordinate position after to calibration, and exported according to the camera lens coordinate position to corresponding LED display
Corresponding display picture.
4. according to the method described in claim 3, read by the infrared camera of infrared location system at the top of video camera
Multiple infrared markers points position, determine the coordinate position of the video camera.
5. method according to claim 1 or 2, builds an AR prospect, in step 5) outside the synthesis picture
The synthesis picture and the three-dimensional suture of the AR prospects are obtained into complete three-dimensional display, described return is shown in and sees screen
On.
6. a kind of three-dimensional scenic for video program production builds system, which includes：Video camera, multiple LED displays,
Infrared location system, move to catch computer and return and see screen；
The display picture and host's image of the multiple LED displays of camera acquisition, the display of the multiple LED display
Picture forms three-dimensional display space；
The image of video camera described in infrared location system timing acquiring, and be sent to described move and catch computer, it is dynamic to catch computer according to institute
The coordinate position of video camera is calculated in the image for stating video camera, and the coordinate position is sent to and is shown with the multiple LED
Shield corresponding Channel server；
Coordinate position of each Channel server based on the video camera exports corresponding display picture to corresponding LED display,
The camera site of each display picture and video camera matches；
The video camera includes the synthesis picture for including three-dimensional display space and host of collection to see screen returning；
Wherein, the display picture of each Channel server output all has corresponding locus coordinate.
7. system according to claim 6, has a virtual camera, this is virtual in the three-dimensional display space
Video camera position matches with real camera position so that the display picture and reality obtained based on virtual camera position
The display picture that border video camera position obtains is identical；
Each Channel server is determined to export to corresponding LED display and shown according to the coordinate position of the virtual camera
Picture.
8. the system according to claim 6 or 7, the Channel server is calculated according to the position of video camera by algorithm
Camera lens coordinate position after to calibration, and exported according to the camera lens coordinate position to corresponding LED display
Corresponding display picture.
9. system according to claim 6, the coordinate position of the video camera is gathered by infrared location system, described infrared
Alignment system is made of eight infrared cameras at the top of display space.
10. system according to claim 9, is read multiple infrared at the top of video camera by the infrared camera
The position of mark point, determines the coordinate position of the video camera.
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