CN105872387A - System and method for switching between virtual camera and real camera - Google Patents
System and method for switching between virtual camera and real camera Download PDFInfo
- Publication number
- CN105872387A CN105872387A CN201610392066.9A CN201610392066A CN105872387A CN 105872387 A CN105872387 A CN 105872387A CN 201610392066 A CN201610392066 A CN 201610392066A CN 105872387 A CN105872387 A CN 105872387A
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- China
- Prior art keywords
- camera
- virtual
- real
- video camera
- real camera
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Classifications
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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
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
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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
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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
- H04N5/262—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
- H04N5/265—Mixing
Abstract
The invention relates to the field of computer video image processing, in particular to a system for switching between a virtual camera and a real camera. The system comprises the real camera, the virtual camera, a chroma key synthesizer, a tracking system, a central computer, a synthesis device, a background generator and a foreground generator. According to a method for switching between the virtual camera and the real camera, when the system receives an instruction for switching from the real camera to the virtual camera, the tracking system acquires parameters of the real camera and then transmits the parameters to the central computer and the virtual camera in sequence, and the virtual camera transmits an image to the synthesis device; after the parameters transmitted by the virtual camera and parameters sent by the chroma key synthesizer to the synthesis device are fused, the chroma key synthesizer stops transmitting the image, and the synthesis device superposes and outputs a virtual foreground, a virtual background and a received graph. According to the system and method for switching between the virtual camera and the real camera, relatively few functional modules are arranged, switching between the real camera and the virtual camera can be quickly realized, transition is smooth, and stability is high.
Description
Technical field
The present invention relates to Video Image process field, the system and method that a kind of virtual video camera switches with real camera.
Background technology
In existing virtual studio, the position of virtual video camera can only keep consistent completely with the position of real camera.Camera lens focal length is to limit to represent object key factor in greater detail, shoots the field range obtained simultaneously and is restricted by camera angles.Although real camera is usually at fixing The Cloud Terrace, rocking arm in present virtual studio, guide rail etc. has on the device of certain activity surplus, extends the shooting visual field.But the video camera on fixing The Cloud Terrace can not move in shooting process, can only rotary camera and change the visual angle of video camera, though and rocking arm and guide rail energy mobile camera position, but also can only mobile camera in limited range.And the visual angle change of video camera itself (camera angles is relevant with image-forming component (CCD) size and lens focus size) is also limited, the most existing virtual studio is difficult to free-roaming (extending to breadth and depth) in virtual scene.In traditional virtual studio, real camera can only change the parameters such as its position, direction, Zoom by devices such as The Cloud Terrace, rocking arm, guide rails.But due to its physical restriction, the field range being likely to be breached of real camera is limited, it is impossible to photograph the various piece of virtual scene.
Summary of the invention
The invention aims to solve the deficiency of above-mentioned technology and provide the system and method for a kind of virtual video camera and real camera switching, its handoff procedure automatic smoothing, the time is short, and speed is fast, and stability is high.
In order to achieve the above object, the system that a kind of virtual video camera designed by the present invention switches with real camera, it includes real camera, virtual video camera, Image Matte device, tracking system, central computer, synthesizer, Background generation device and prospect maker；Wherein real camera is connected with Image Matte device, system of following the tracks of respectively, tracking system is connected with central computer, central computer is connected with virtual video camera, Image Matte device, virtual video camera, Background generation device and prospect maker are all connected with synthesizer, and simultaneously synthesizing device connects output device；System of wherein following the tracks of obtains physical location parameter and the action parameter of real camera, and central computer is followed the tracks of the parameter of system acquisition and carried the parameter being converted into virtual video camera, and image is delivered to synthesizer by Image Matte device by real camera.
As optimization, described tracking system is mechanical sensing type, for arranging the sensor of correspondence on real camera.
A kind of method that virtual video camera switches with real camera, when using real camera, image is delivered to synthesizer by Image Matte device by real camera, and synthesizer is by prospect maker, the virtual prospect of Background generation device conveying, the Graphics overlay synthesis output of virtual background and acceptance；When system receives the instruction that real camera switches to virtual video camera, it is delivered to central computer after the physical location of tracking system acquisition real camera and action parameter, central computer is delivered to virtual video camera, image is delivered to synthesizer by virtual video camera, after virtual video camera and Image Matte device are delivered to the Parameter fusion of synthesizer, Image Matte device stops transport picture, then prospect maker, the virtual prospect of Background generation device conveying, virtual background are exported by synthesizer with the Graphics overlay synthesis of acceptance；I.e. complete the switching between real camera and virtual video camera.
The system and method that a kind of virtual video camera obtained by the present invention switches with real camera, its functional module is relatively fewer, can quickly realize the switching between real camera and virtual video camera, transitions smooth, and stability is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
The invention will be further described to combine accompanying drawing below by embodiment.
Embodiment 1:
As shown in Figure 1, the system that a kind of virtual video camera that the present embodiment describes switches with real camera, it includes real camera 1, virtual video camera 5, Image Matte device 2, tracking system 3, central computer 4, synthesizer 6, Background generation device 8 and prospect maker 7；Wherein real camera 1 is connected with Image Matte device 2, tracking system 3 respectively, tracking system 3 is connected with central computer 4, central computer 4 is connected with virtual video camera 5, Image Matte device 2, virtual video camera 5, Background generation device 8 and prospect maker 7 are all connected with synthesizer 6, and simultaneously synthesizing device 6 connects output device 9；Wherein following the tracks of system 3 and obtain physical location parameter and the action parameter of real camera 1, central computer 4 is followed the tracks of the parameter conveying that system 3 obtains and is converted into the parameter of virtual video camera 5, and image is delivered to synthesizer 6 by Image Matte device 2 by real camera 1.Described tracking system 3 is mechanical sensing type, for arranging the sensor of correspondence on real camera 1.
A kind of method that virtual video camera switches with real camera, when using real camera 1, image is delivered to synthesizer 6 by Image Matte device 2 by real camera 1, and the Graphics overlay synthesis output of the virtual prospect that prospect maker 7, Background generation device 8 are carried by synthesizer 6, virtual background and acceptance；When system receives the instruction that real camera 1 switches to virtual video camera 5, tracking system 3 is delivered to central computer 4 after obtaining the physical location of real camera 1 and action parameter, central computer 4 is delivered to virtual video camera 5, image is delivered to synthesizer 6 by virtual video camera 5, after virtual video camera 5 and Image Matte device 2 are delivered to the Parameter fusion of synthesizer 6, Image Matte device 2 stops transport picture, then prospect maker 7, Background generation device 8 are carried by synthesizer 6 virtual prospect, virtual background export with the Graphics overlay synthesis of acceptance；I.e. complete the switching between real camera and virtual video camera.
Claims (3)
1. virtual video camera and a system for real camera switching, is characterized in that: it includes real camera, virtual video camera, Image Matte device, tracking system, central computer, synthesizer, Background generation device and prospect maker；Wherein real camera is connected with Image Matte device, system of following the tracks of respectively, tracking system is connected with central computer, central computer is connected with virtual video camera, Image Matte device, virtual video camera, Background generation device and prospect maker are all connected with synthesizer, and simultaneously synthesizing device connects output device；System of wherein following the tracks of obtains physical location parameter and the action parameter of real camera, and central computer is followed the tracks of the parameter of system acquisition and carried the parameter being converted into virtual video camera, and image is delivered to synthesizer by Image Matte device by real camera.
A kind of virtual video camera the most according to claim 1 and the system of real camera switching, is characterized in that: described tracking system is mechanical sensing type, for arranging the sensor of correspondence on real camera.
3. the method that a virtual video camera as claimed in claim 1 switches with real camera, it is characterized in that: when using real camera, image is delivered to synthesizer by Image Matte device by real camera, and synthesizer is by prospect maker, the virtual prospect of Background generation device conveying, the Graphics overlay synthesis output of virtual background and acceptance；When system receives the instruction that real camera switches to virtual video camera, it is delivered to central computer after the physical location of tracking system acquisition real camera and action parameter, central computer is delivered to virtual video camera, image is delivered to synthesizer by virtual video camera, after virtual video camera and Image Matte device are delivered to the Parameter fusion of synthesizer, Image Matte device stops transport picture, then prospect maker, the virtual prospect of Background generation device conveying, virtual background are exported by synthesizer with the Graphics overlay synthesis of acceptance；I.e. complete the switching between real camera and virtual video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392066.9A CN105872387A (en) | 2016-06-06 | 2016-06-06 | System and method for switching between virtual camera and real camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392066.9A CN105872387A (en) | 2016-06-06 | 2016-06-06 | System and method for switching between virtual camera and real camera |
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| Publication Number | Publication Date |
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| CN105872387A true CN105872387A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610392066.9A Pending CN105872387A (en) | 2016-06-06 | 2016-06-06 | System and method for switching between virtual camera and real camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616676A (en) * | 2016-12-30 | 2018-10-02 | 艾迪普（北京）文化科技股份有限公司 | The switching method of video camera track dynamic mapping in a kind of virtual scene |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6124862A (en) * | 1997-06-13 | 2000-09-26 | Anivision, Inc. | Method and apparatus for generating virtual views of sporting events |
| 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 |
| CN104349020A (en) * | 2014-12-02 | 2015-02-11 | 北京中科大洋科技发展股份有限公司 | Virtual camera and real camera switching system and method |
| CN105407259A (en) * | 2015-11-26 | 2016-03-16 | 北京理工大学 | Virtual camera shooting method |
-
2016
- 2016-06-06 CN CN201610392066.9A patent/CN105872387A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6124862A (en) * | 1997-06-13 | 2000-09-26 | Anivision, Inc. | Method and apparatus for generating virtual views of sporting events |
| 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 |
| CN104349020A (en) * | 2014-12-02 | 2015-02-11 | 北京中科大洋科技发展股份有限公司 | Virtual camera and real camera switching system and method |
| CN105407259A (en) * | 2015-11-26 | 2016-03-16 | 北京理工大学 | Virtual camera shooting method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616676A (en) * | 2016-12-30 | 2018-10-02 | 艾迪普（北京）文化科技股份有限公司 | The switching method of video camera track dynamic mapping in a kind of virtual scene |
| CN108616676B (en) * | 2016-12-30 | 2020-11-06 | 艾迪普科技股份有限公司 | Switching method for dynamic change of camera track in virtual scene |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |
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| WD01 | Invention patent application deemed withdrawn after publication |