CN101668128B - Method for constructing virtual studio system with multiple-to-multiple structure - Google Patents
Method for constructing virtual studio system with multiple-to-multiple structure Download PDFInfo
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Abstract
The invention discloses a method for constructing a virtual studio system with a multiple-to-multiple structure, which belongs to the technical field of virtual studio systems of television stations. The prior virtual studio system has a one-to-one structure and a one-to-multiple structure. In the one-to-one structure, if one graphic workstation fails, the other graphic workstation only has one camera position, thereby bringing inconvenience to program production. The one-to-multiple structure is not safe enough for live broadcast, for once the graphic workstation fails, and the broadcast is affected. The method adopts the multiple-to-multiple structure; and multiple cameras correspond to multiple image processing channels, namely each camera is communicated with at least two keying synthesizers, and a sensor corresponding to each camera is communicated with at least two graphic workstations through an encoding box. When one graphic workstation fails, all the cameras can work normally so as to improve the efficiency of program production and the safety of the broadcast.
Description
Technical field
The invention belongs to the Virtual Studio System in Television Station technical field, be specifically related to a kind of construction method of multi-to-multi structure Virtual Studio System.
Background technology
Virtual Studio System is a kind of new tv program producing system that computer technology combines with chroma key technique, adopted traditional chroma key technique, but broken through the restriction of traditional chroma key system, eliminated the deadly defect that video camera can not be synchronized with the movement with background, accomplished that real performer can be deep in the virtual three-dimensional scenic, and can with virtual objects real-time, interactive wherein.This system mainly is comprised of three sub-systems: tracing subsystem, graphic plotting subsystem, synthon system, tracing subsystem mainly is comprised of transducer and coding box, the graphic plotting subsystem mainly is comprised of graphics workstation, and the synthon system mainly forms as synthesizer by scratching.During work, at first by the camera acquisition foreground signal, scratch the picture synthesizer with sending into after the foreground signal time-delay; Transducer on the simultaneous camera obtains the kinematic parameter of video camera, and export the coding box to after converting thereof into the signal of telecommunication, again by the coding box with the kinematic parameter of video camera real-time pass to graphics workstation, then graphics workstation goes out corresponding background signal and mask signal according to the positional information real-time rendering of current video camera, last synthesis system is synthesized background and prospect according to the mask signal, realizes that the nothing of host's foreground signal and virtual three-dimensional background signal is stitched into.
At present, the structure of Virtual Studio System has two kinds: a kind of is structure one to one, and another kind is the many-one structure.
So-called man-to-man system configuration refers to the corresponding picture processing path of every video camera.Picture processing path refers to be used to the general designation of finishing a whole set of equipment that foreground image and background image are processed, mainly comprise a cover sensor-based system, a delayer, a graphics workstation and a stingy picture synthesizer, wherein sensor-based system comprises transducer, coding box and data exchange device.As shown in Figure 1 (take two video camera seats in the plane as example), every controller corresponding to video camera links to each other with stingy picture synthesizer by delayer, and controller is sent into the foreground image of camera acquisition and is scratched the picture synthesizer after the delayer time-delay.Every video camera is a corresponding cover sensor-based system all, is comprised of the toothed disc, transducer interlock gear and the photoelectric coded disk that are embedded in the The Cloud Terrace rotating shaft.When shaking video camera, the rotation of The Cloud Terrace rotating disk drives the interlock gear, so that photoelectric coded disk produces corresponding the rotation, photoelectric coded disk converts mechanical movement to electric impulse signal and gives the coding box, and the coding box links to each other with graphics workstation.Each graphics workstation links to each other with a stingy picture synthesizer, the coding box is sent the kinematic parameter of video camera into graphics workstation, graphics workstation is made background image according to the kinematic parameter of video camera, and it is sent into stingy as synthesizer, scratch and to send into that cut bank broadcasts or storage after as synthesizer foreground image and background image synthesize, cut bank is used for stingyly switching as the output of synthesizer a plurality of; All graphics workstations link to each other with main control computer by Fast Ethernet, and main control computer is used for all graphics workstations are controlled; Each is scratched as synthesizer and links to each other with a monitor, and monitor is used for synthetic effect is carried out preview.The advantage of this structure is that each video camera seat in the plane possesses independently premonitoring function, conveniently carries out on-the-spot stunt and switches; Each graphics workstation is Hot Spare each other, has the fail safe of height.Shortcoming is when a graphics workstation can't work, and the another one graphics workstation only has a video camera seat in the plane, and this has brought inconvenience to program making.
The system configuration of so-called one-to-many, its principal character are the corresponding picture processing path of multiple cameras.As shown in Figure 2 (take two video camera seats in the plane as example), two controllers corresponding to video camera link to each other with a video switcher by delayer, video switcher links to each other with a stingy picture synthesizer, and video switcher is used for the output of two video cameras is switched.Two coding boxes corresponding to video camera link to each other with a graphics workstation by the data exchange device, and graphics workstation links to each other with stingy picture synthesizer again.The data exchange device is used for graphics workstation is sent in the output of two coding boxes.The advantage of this structure is simple in structure, and multiple cameras only needs a graphics workstation, a stingy picture synthesizer and a monitor to get final product, and cost is also lower.Its shortcoming is lower for live coefficient of safety, because in a single day graphics workstation breaks down directly impact broadcast, owing to only have the seat in the plane can premonitoring, when switch the seat in the plane, can only blindly cut simultaneously, therefore this structure so that quality and efficient that program broadcasts greatly reduce.
Summary of the invention
For the defective that exists in the prior art, the construction method that the purpose of this invention is to provide a kind of multi-to-multi structure Virtual Studio System, adopt the Virtual Studio System of the method structure when a graphics workstation breaks down, all video cameras still can work.
For achieving the above object, the technical solution used in the present invention is: a kind of construction method of multi-to-multi structure Virtual Studio System, all video cameras in the Virtual Studio System are connected with at least two picture processing paths respectively, and each picture processing path all can obtain the foreground image of coupled logical all camera acquisitions and the kinematic parameter of all video cameras.
The construction method of aforesaid a kind of multi-to-multi structure Virtual Studio System, describedly with all video cameras with at least two picture processing paths concrete grammar that adopts that is connected be respectively: every video camera is linked to each other with at least two video switchers by delayer, and a video switcher connects a stingy synthesizer that looks like; Every video camera is linked to each other with at least two data switchs by the coding box, and a data switch connects a graphics workstation.
The construction method of aforesaid a kind of multi-to-multi structure Virtual Studio System, the concrete methods of realizing that described each picture processing path all can obtain the foreground image of coupled logical all camera acquisitions is: with the foreground image of every camera acquisition through the delayer time-delay after, send to simultaneously all coupled video switchers, video switcher switches the foreground image of the video camera that is required, exports the stingy picture synthesizer that links to each other with it to.
The construction method of aforesaid a kind of multi-to-multi structure Virtual Studio System, the concrete methods of realizing that described each picture processing path all can obtain the kinematic parameter of coupled logical all video cameras is: the kinematic parameter of every video camera is sent to all coupled data exchange devices simultaneously by the coding box, the data exchange device exports the kinematic parameter of all coupled video cameras to coupled graphics workstation, and graphics workstation reads the kinematic parameter of current video camera.
The construction method of aforesaid a kind of multi-to-multi structure Virtual Studio System, described multi-to-multi structure is two pairs of two structures, namely comprises two video cameras and two picture processing paths; Perhaps be three pairs of three structures, namely comprise three video cameras and three picture processing paths; Perhaps be three pairs of two structures, namely comprise three video cameras and two picture processing paths.
Method of the present invention, the mode that adopts multiple cameras to be connected with a plurality of picture processing paths, when a graphics workstation breaks down, all video cameras still can work, the foreground image that is camera acquisition still can be admitted to other stingy picture synthesizers, the kinematic parameter of video camera still can be admitted to other graphics workstation rendering context images, and then foreground image and the background image of this video camera synthesized, therefore improved the efficient of television program designing and the fail safe of broadcast.And, when adopting N that N structure (N 〉=2) and N platform video camera are connected with N picture processing path, because the effect after the stingy picture synthesizer that every video camera is corresponding is synthetic can both preview in monitor, the defective that can only blindly cut when therefore having overcome camera switching in the one-to-many structure has improved quality and the efficient of program making.
Description of drawings
Fig. 1 is the data flow diagram of the Virtual Studio System of structure one to one;
Fig. 2 is the data flow diagram of the Virtual Studio System of one-to-many structure;
Fig. 3 is the data flow diagram of the Virtual Studio System of two pairs of two structures;
Fig. 4 is the data flow diagram of the Virtual Studio System of three pairs of three structures;
Fig. 5 is the data flow diagram of the Virtual Studio System of three pairs of two structures.
Embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Core concept of the present invention is: at least two picture processing paths of every video camera correspondence in the Virtual Studio System, namely all video cameras are connected with at least two picture processing paths respectively, each graphics workstation all can obtain the kinematic parameter of all coupled video cameras in the system, each scratches the foreground image that can obtain all coupled camera acquisitions as synthesizer, so each is scratched and all can synthesize the foreground image of coupled video camera and the background image corresponding with this foreground image as synthesizer.After a graphics workstation broke down, all video cameras all can work.
Adopt the method for the invention to make up the Virtual Studio System of multi-to-multi structure, comprise at least two video cameras, at least two graphics workstations, at least two stingy picture synthesizers, at least two delayers, at least two video switchers, at least two coding boxes, at least two data switchs, at least two monitors, a main control computer and cut banks, every corresponding controller of video camera and a transducer.
Every controller corresponding to video camera links to each other with at least two video switchers respectively by delayer, and each video switcher links to each other with a stingy picture synthesizer; Transducer in every video camera links to each other with at least two data switchs by the coding box, and each data exchange device links to each other with a graphics workstation, and each graphics workstation is scratched the picture synthesizer and linked to each other with one, and each is stingy to link to each other with a monitor as synthesizer; All graphics workstations link to each other with main control computer, and all stingy picture synthesizers link to each other with cut bank.
During work, with the foreground image of every camera acquisition through the delayer time-delay after, send to simultaneously coupled all video switchers, video switcher switches output with the foreground image of the video camera that is required.The kinematic parameter of every video camera is sent to all coupled data exchange devices simultaneously by the coding box, the data exchange device exports the kinematic parameter of all coupled video cameras to coupled graphics workstation, and graphics workstation is selected the kinematic parameter of current video camera.
Embodiment 1
Fig. 3 has shown connected mode and the data flow of two pairs of two structure Virtual Studio Systems, two corresponding two picture processing paths of video camera.In the situation that two graphics workstations all can work, its operation principle is with structure is similar one to one, namely scratch picture synthesizer 1 and receive the foreground image that video camera 1 sends, the kinematic parameter of the video camera 1 that graphics workstation 1 received code box 1 sends, graphics workstation 1 is drawn the background image corresponding with the current foreground image of video camera 1, scratches foreground image that picture synthesizer 1 synthetic video camera 1 sends and the background image of graphics workstation 1 transmission; Another picture processing path is responsible for the foreground image of synthetic video camera 2 and the background image of graphics workstation 2.Its difference is: the foreground image of every camera acquisition sends to connected all video switchers, and the kinematic parameter of every video camera sends to connected all data exchange devices.After a graphics workstation broke down, this system just was equivalent to one a pair of two structure, and two video cameras all can work, thereby had improved the efficient of program making and the fail safe of broadcast.The concrete course of work is as described below.
After video camera 1 and video camera 2 gather foreground image, by each self-corresponding controller foreground image is sent to delayer, after the delayer time-delay, send into simultaneously two video switchers of scratching as synthesizer and switch output.Video switcher 1 switches to the foreground image of video camera 1, this image is sent into scratched picture synthesizer 1; Video switcher 2 switches to the foreground image of video camera 2, this image is sent into scratched picture synthesizer 2.Meanwhile, two coding boxes are sent the kinematic parameter of two video cameras into two data switchs simultaneously.Data exchange device 1 breaks into a bag with the kinematic parameter of two video cameras and exports to graphics workstation 1 by serial ports, graphics workstation 1 reads the kinematic parameter of video camera 1, scratch picture synthesizer 1 according to sending to behind the kinematic parameter drafting of video camera 1 background image corresponding with foreground image, scratch and synthesize as 1 pair of foreground image of synthesizer and background image, effect after synthetic can be carried out preview by monitor 1, then it is sent into cut bank and switches broadcast or storage.Data exchange device 2 breaks into a bag with the kinematic parameter of two video cameras and exports to graphics workstation 2 by serial ports, graphics workstation 2 reads the kinematic parameter of video camera 2, scratch picture synthesizer 2 according to sending to behind the kinematic parameter drafting of video camera 2 background image corresponding with foreground image, scratch and synthesize as 2 pairs of foreground images of synthesizer and background image, effect after synthetic can be carried out preview by monitor 2, then it is sent into cut bank and switches broadcast or storage.Two monitors can carry out preview to the synthetic effect of the foreground image that relates to two video cameras, have therefore avoided the defective that can only blindly cut when camera switching in the many-one structure.
Suppose that at a time graphics workstation 1 breaks down, can't work that this moment, system was equivalent to two pairs of structures.If the foreground image that needs video camera 1 to gather, then video switcher 2 can be switched to the foreground image of video camera 1, data exchange device 2 sends to graphics workstation 2 with the kinematic parameter of two video cameras, graphics workstation 2 reads the kinematic parameter of video camera 1, draw the background image corresponding with the foreground image of video camera 1, foreground image and the background image of synthetic video camera 1 in scratching picture synthesizer 2, thus guaranteed that video camera 1 can work on.In man-to-man structure, if above-mentioned situation occurs, video camera 1 also just can not work on again so.
Embodiment 2
Fig. 4 has shown a kind of connected mode and the data flow of three pairs of three structure Virtual Studio Systems, its operation principle and two pairs of two structures are basic identical, only be a many video camera and a picture processing path, the foreground image of three camera acquisitions need to be sent to three video switchers, the kinematic parameter of three video cameras sends to three data switchs, other processing procedures and embodiment 1 are roughly the same, repeat no more herein.
Embodiment 3
Fig. 5 has shown connected mode and the data flow of three pairs of two structure Virtual Studio Systems, three corresponding two picture processing paths of video camera.The Virtual Studio System of this structure is compared with the system of three pairs of three structures, because two video cameras share a picture processing path, thereby has saved hardware resource.When a graphics workstation broke down, three video cameras still can work.In advance preview when between the video camera of the video camera that shares a picture processing path and a picture processing path of independent use, switching; But sharing when switching between two video cameras of a picture processing path, owing to only have a monitor, thus can only blindly cut, thus the quality that program broadcasts affected, and therefore this structure is suitable for that the less TV station of fund is non-to be used when live.
Need to prove: method of the present invention is not limited to the embodiment described in the embodiment, in the situation that hardware condition allows, the interface of data exchange device and video switcher abundant (at present the interface of data exchange device and video switcher is four) for example, can also make up four pairs four, five pairs five isostructural Virtual Studio Systems, and when picture processing path is more, every video camera can be not be connected with all picture processing path yet, as long as connect two or more picture processing paths.Therefore those skilled in the art belong to technological innovation scope of the present invention equally according to other execution modes that technical solution of the present invention draws.
Claims (4)
1. the construction method of a multi-to-multi structure Virtual Studio System, it is characterized in that: all video cameras in the Virtual Studio System are connected with at least two picture processing paths respectively, and each picture processing path all can obtain the foreground image of coupled logical all camera acquisitions and the kinematic parameter of all video cameras;
Describedly with all video cameras with at least two picture processing paths concrete grammar that adopts that is connected be respectively: every video camera is linked to each other with at least two video switchers by delayer, and a video switcher connects a stingy synthesizer that looks like; Every video camera is linked to each other with at least two data switchs by the coding box, and a data switch connects a graphics workstation;
The concrete methods of realizing that described each picture processing path all can obtain the foreground image of coupled logical all camera acquisitions is: with the foreground image of every camera acquisition through the delayer time-delay after, send to simultaneously all coupled video switchers, video switcher switches the foreground image of the video camera that is required, exports coupled stingy picture synthesizer to;
The concrete methods of realizing that described each picture processing path all can obtain the kinematic parameter of coupled logical all video cameras is: the kinematic parameter of every video camera is sent to all coupled data exchange devices simultaneously by the coding box, the data exchange device exports the kinematic parameter of all coupled video cameras to coupled graphics workstation, and graphics workstation reads the kinematic parameter of current video camera.
2. the construction method of a kind of multi-to-multi structure Virtual Studio System as claimed in claim 1, it is characterized in that: described multi-to-multi structure is two pairs of two structures, namely comprises two video cameras and two picture processing paths.
3. the construction method of a kind of multi-to-multi structure Virtual Studio System as claimed in claim 1, it is characterized in that: described multi-to-multi structure is three pairs of three structures, namely comprises three video cameras and three picture processing paths.
4. the construction method of a kind of multi-to-multi structure Virtual Studio System as claimed in claim 1, it is characterized in that: described multi-to-multi structure is three pairs of two structures, namely comprises three video cameras and two picture processing paths.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2566556Y (en) * | 2002-08-21 | 2003-08-13 | 北京新奥特集团 | True three-dimensional virtual telestudio |
| CN1477856A (en) * | 2002-08-21 | 2004-02-25 | 北京新奥特集团 | True three-dimensional virtual studio system and its implement method |
| CN101110908A (en) * | 2007-07-20 | 2008-01-23 | 西安宏源视讯设备有限责任公司 | Foreground depth of field position identification device and method for virtual studio system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2566556Y (en) * | 2002-08-21 | 2003-08-13 | 北京新奥特集团 | True three-dimensional virtual telestudio |
| CN1477856A (en) * | 2002-08-21 | 2004-02-25 | 北京新奥特集团 | True three-dimensional virtual studio system and its implement method |
| CN101110908A (en) * | 2007-07-20 | 2008-01-23 | 西安宏源视讯设备有限责任公司 | Foreground depth of field position identification device and method for virtual studio system |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2008-17386A 2008.01.24 |
| 王俊文.虚拟演播室技术.《西部广播电视》.1999,(第9期),全文. * |
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