CN106534892A - Virtual reality live broadcast system and method based on visual angle recoding - Google Patents
Virtual reality live broadcast system and method based on visual angle recoding Download PDFInfo
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- CN106534892A CN106534892A CN201611040960.6A CN201611040960A CN106534892A CN 106534892 A CN106534892 A CN 106534892A CN 201611040960 A CN201611040960 A CN 201611040960A CN 106534892 A CN106534892 A CN 106534892A
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- 230000000007 visual effect Effects 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 18
- 238000003860 storage Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
Classifications
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
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- Signal Processing (AREA)
- Processing Or Creating Images (AREA)
- Information Transfer Between Computers (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a virtual reality live broadcast system and method based on visual angle recoding, for the purposes of greatly saving a network transmission quantity and reducing video decoding pressure. The technical scheme is as follows: the system comprises a server which forwards virtual reality of a live broadcast person to a player and comprises a visual angle control apparatus and a video transcoding apparatus; and a client which receives the virtual reality forwarded by the server and performs playing and comprises a control acquisition apparatus and a video playing apparatus, wherein the control acquisition apparatus obtains visual angle control information of a user and transmitting the visual angle control information to the visual angle control apparatus through a video control channel, the visual angle control apparatus determines virtual reality video content corresponding to a visual angle according to video control information, the video transcoding apparatus, based on the virtual reality video content corresponding to the visual angle, generates corresponding video data and transmits the video data to the video playing apparatus through a video data channel, and the video playing apparatus, after receiving the video data corresponding to the visual angle, playing the video data.
Description
Technical field
The present invention relates to net cast technology, more particularly to the prioritization scheme to virtual reality (VR) net cast.
Background technology
With the lifting and the development of camera technology of network speed, net cast is increasingly becoming the new heat of people's social entertainment
Point.Existing network direct broadcasting system is generally used for live game, main broadcaster's one-man show and live common scene etc..Individual can use
Record frequency software upload game picture, it is also possible to mobile phone or intelligence and art from PC cameras to public display oneself, also can some be public
Landscape can install video camera real-time exhibition field scene altogether.Spectators' Website login just can be seen almost in real time by internet
Video clip.
Network direct broadcasting system is broadly divided into live video camera, three parts of forwarding server and player.Video camera connects
Internet, its collection image produce video stream data, are sent to forwarding server.Spectators' Website login is accessed by player and is turned
Server is sent out, player just can render live video picture after obtaining data.As video data stream is almost adopted in real time
Collection and issue, spectators can see the video of very low delay.
Virtual reality technology (referred to as VR) be it is a kind of can create with the computer simulation system in the experiencing virtual world it
Interactively Three-Dimensional Dynamic what comes into a driver's and the entity behavior that a kind of simulated environment is a kind of Multi-source Information Fusion is generated using computer
System emulation user is immersed in the environment.
Virtual reality technology has application in many occasions now, such as：Using virtual reality technology, with reference to network
The displaying of historical relic, protection can be brought up to a brand-new stage by technology.Show first and cultural relic entity is passed through into image number
According to acquisition means, it is established that physical three-dimensional or model database, the original every pattern data of historical relic and spatial relationship etc. are preserved
Valuable source, realizes science, high accuracy and the permanent preservation of Cultural Relic Resource in imminent danger.Next improves historical relic using these technologies
The precision of reparation and prejudge, choose the salvo that will be adopted, while can shorten that repaired the duration.By computer network
Network integrating the interior on a large scale Cultural Relic Resource of unification, and by network on a large scale it is interior come using virtual technology more comprehensively,
Vividly, realistically show historical relic, so that historical relic departs from regional limitation, realize resource-sharing, really becoming the whole mankind can be " to gather around
Have " cultural heritage.The rich industry of text can be promoted quickly to enter the information age using virtual reality technology, realize cultural relic exhibition
With the modernization of protection.
Such as 3d gaming is both one of important application direction of virtual reality technology, is also the quick of virtual reality technology
Development has played huge demand pull effect.Despite the presence of numerous technical barriers, virtual reality technology is in trip with keen competition
Play has still obtained increasing attention and application in market.It can be said that computer game is since the generation, always all towards
The direction of virtual reality is developed, and the final goal of virtual reality technology development has become the lofty of 3d gaming worker and chases after
Ask.Play from initial word MUD, to two-dimensional game, 3d gaming, then play to Network Three-dimensional, play and keeping which real-time
Property and while interactivity, fidelity and feeling of immersion are being improved a step by a step and are being strengthened.It is believed that with 3-D technology
The continuous progress of fast-developing and software and hardware technology, in the near future, reality-virtualizing game truly will be people
New bigger contribution is made in class amusement, education and economic development.
What is focused in the present invention is the fusion of virtual reality technology and net cast.Existing virtual reality is live
It is similar with traditional net cast scheme, all it is that complete video information is sent to into client, then is decoded by client,
Visible angle is presented to into user.However, because video information of the virtual reality comprising multiple visual angles, content is more, right
The requirement of network and broadcasting hardware is also of a relatively high.On the one hand live fluency and live effect, the opposing party can be affected so
Face also increases the live cost of virtual reality.
The content of the invention
The brief overview of one or more aspects given below is providing to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects for contemplating, and it is also non-to be both not intended to identify the key or decisive key element of all aspects
Attempt to define the scope in terms of any or all.Its unique purpose is will to provide the one of one or more aspects in simplified form
A little concepts think the sequence of more detailed description given later.
It is an object of the invention to solve the above problems, there is provided a kind of virtual reality based on visible angle re-encoding is straight
Broadcast system and method, by way of recompiling to virtual reality video, make user only need to acquisition current visible and regard
The video information at angle, need not obtain other Viewing-angle informations, therefore can greatly save transmission volume, reduce video decoding pressure.
The technical scheme is that：Present invention is disclosed a kind of live system of virtual reality re-encoded based on visible angle
System, including：
The virtual reality video of live person is transmitted to broadcaster by server：
Client, receives the virtual reality video from server forwarding and plays out；
Wherein client further includes to control harvester and video play device, and server further includes that visual angle is controlled
Device processed and video code conversion device；
Control harvester is obtained the viewing angle control information of user and is passed video control information by video control passage
It is defeated to visual angle controller；
Visual angle controller determines the corresponding virtual reality video content in visual angle according to video control information；
Video code conversion device generates the corresponding virtual reality video in visual angle based on the corresponding virtual reality video content in visual angle
The video data of content simultaneously passes through video data channel by video data transmission to video play device；
Video play device plays the corresponding virtual reality video in visual angle after receiving the corresponding video data in visual angle.
One embodiment of the virtual reality live broadcast system re-encoded based on visible angle of the invention, viewing angle control letter
Breath includes rotational angle and displacement, and wherein rotational angle determines the direction at visual angle, displacement determine the scaling of virtual reality video with
Visual range.
Present invention further teaches a kind of virtual reality live broadcasting method re-encoded based on visible angle, including：
Client obtains the viewing angle control information of user and video control information is transferred to clothes by video control passage
Business device；
Server determines the corresponding virtual reality video content in visual angle according to video control information；
Server generates the corresponding virtual reality video content in visual angle based on the corresponding virtual reality video content in visual angle
Video data is simultaneously transmitted to client by video data by video data channel；
Client plays the corresponding virtual reality video in visual angle after receiving the corresponding video data in visual angle.
One embodiment of the virtual reality live broadcasting method re-encoded based on visible angle of the invention, viewing angle control letter
Breath includes rotational angle and displacement, and wherein rotational angle determines the direction at visual angle, displacement determine the scaling of virtual reality video with
Visual range.
Present invention contrast prior art has following beneficial effect：Visual angle by user is got from client of the invention
Control information, transmits this information to server, and server is based on this information in jumbo virtual reality video content
Get the corresponding virtual reality video content in this visual angle and be re-encoded as video data, this video data passes back to client
End plays out, and the content finally played is the virtual reality video content corresponding to the user perspective for getting before this.With
The live scheme of traditional virtual reality is compared, and the present invention enables to user and only needs to obtain the video letter at current visible visual angle
Breath, and the information at other visual angles need not be obtained, transmission volume can be so greatlyd save, so as to reduce video decoding pressure.
Description of the drawings
Fig. 1 shows the principle of an embodiment of the virtual reality live broadcast system re-encoded based on visible angle of the present invention
Figure.
Fig. 2 shows the flow process of an embodiment of the virtual reality live broadcasting method re-encoded based on visible angle of the present invention
Figure.
Specific embodiment
After the detailed description of embodiment of the disclosure is read in conjunction with the following drawings, better understood when the present invention's
Features described above and advantage.In the accompanying drawings, each component is not necessarily drawn to scale, and with similar correlation properties or feature
Component may have same or like reference.
Fig. 1 shows the original of an embodiment of the virtual reality live broadcast system re-encoded based on visible angle of the present invention
Reason.Fig. 1 is referred to, the virtual reality live broadcast system re-encoded based on visible angle of the present embodiment is included：Server 1 and client
End 2.The effect of server 1 is that the virtual reality video of live person is transmitted to broadcaster, and client 2 is received from server 1
The virtual reality video of forwarding is simultaneously played out.
Client 2 includes controlling harvester 21 and video play device 22,.Server 1 includes visual angle controller 11
With video code conversion device 12.
Control harvester 21 obtains the viewing angle control information of user and passes through video control passage by video control information
It is transferred to visual angle controller 11.
Common live not video control passage and only one of which transmission of video passage, by all the elements of video all
Download to client, then carry out decoding by client, visual angle positioning.Particularly pointing out for the present embodiment is to increased such regarding
Frequency control passage, the viewing angle control information that client is obtained is uploaded onto the server by video control passage.
Visual angle controller 11 determines the corresponding virtual reality video content in visual angle according to video control information.One normal
Virtual reality video council include multiple visual angles, with user visual angle rotate and position movement, can present in different videos
Hold, just as people is walked on one piece of vacant lot, can also be moved rearwards by forward with rotation direction, the thing seen is naturally not yet
Together.Viewing angle control information may be considered one it is vectorial, including rotational angle and displacement, rotational angle determines the side at visual angle
To uniquely determining the scaling and visual range of video.Server enters to video according to the video control information of client upload
Row decoding, repositions the content of visual video.
Video code conversion device 12 generates the corresponding virtual reality in visual angle based on the corresponding virtual reality video content in visual angle and regards
The video data of frequency content simultaneously passes through video data channel by video data transmission to video play device 22.
Server to positioning after visual video content recompile again, client is transferred to by the network transmission protocol,
The video data volume after recompiling will be far smaller than original video, so as to reduce the hsrdware requirements of network and client.
Video play device 22 plays the corresponding virtual reality video in visual angle after receiving the corresponding video data in visual angle.
Fig. 2 shows an enforcement of the virtual reality live broadcasting method re-encoded based on visible angle of the present invention of the present invention
The flow process of example.Fig. 2 is referred to, details are as follows for the implementation steps of the virtual reality live broadcasting method of the present embodiment.
Step S1：Client is obtained the viewing angle control information of user and is passed video control information by video control passage
It is defeated to server.
Common live not video control passage and only one of which transmission of video passage, by all the elements of video all
Download to client, then carry out decoding by client, visual angle positioning.Particularly pointing out for the present embodiment is to increased such regarding
Frequency control passage, the viewing angle control information that client is obtained is uploaded onto the server by video control passage.
Step S2：Server determines the corresponding virtual reality video content in visual angle according to video control information.
One normal virtual reality video council includes multiple visual angles, as the visual angle of user rotates and position movement, meeting
Different video contents are presented, just as people is walked on one piece of vacant lot, can also can be moved rearwards by forward with rotation direction, be seen
Thing it is also naturally different.Viewing angle control information may be considered one it is vectorial, including rotational angle and displacement, rotational angle is determined
Determine the direction at visual angle, uniquely determine the scaling and visual range of video.Server is controlled according to the video of client upload
Information is decoded to video, repositions the content of visual video.
Step S3：Server generates the corresponding virtual reality video in visual angle based on the corresponding virtual reality video content in visual angle
Video data is simultaneously transmitted to client by the video data of content by video data channel.
Server to positioning after visual video content recompile again, client is transferred to by the network transmission protocol,
The video data volume after recompiling will be far smaller than original video, so as to reduce the hsrdware requirements of network and client.
Step S4：Client plays the corresponding virtual reality video in visual angle after receiving the corresponding video data in visual angle.
Generally speaking, a VR video is a complete panoramic video, contains multiple angles, but as a people
Stand over there, although things after one's death is all necessary being, but he just can't see at all, what he can see only has in front of him
A part of region.The present invention is exactly the content that viewing area is obtained according to the control information of client, by this partial content weight
Newly carry out Video coding and obtain a new video flowing, client is transferred to finally by the network transmission protocol.
Although for make explanation simplify said method is illustrated and is described as a series of actions, it should be understood that and understand,
These methods are not limited by the order of action, because according to one or more embodiments, some actions can occur in different order
And/or with from it is depicted and described herein or not shown herein and describe but it will be appreciated by those skilled in the art that other
Action concomitantly occurs.
Those skilled in the art will further appreciate that, the various illustratives described with reference to the embodiments described herein
Logic plate, module, circuit and algorithm steps are capable of achieving as electronic hardware, computer software or combination of the two.For clear
Chu ground explains this interchangeability of hardware and software, various illustrative components, frame, module, circuit and step be above with
Its functional form makees vague generalization description.Such feature be implemented as hardware or software depend on concrete application and
Put on the design constraint of total system.Technical staff for every kind of application-specific can be realized with different modes it is described
Feature, but such realize that decision-making should not be interpreted to cause departing from the scope of the present invention.
Various illustrative logic plates, module and circuit with reference to presently disclosed embodiment description can use general place
Reason device, digital signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) or other can compile
Journey logical device, discrete door or transistor logic, discrete nextport hardware component NextPort or its be designed to carry out function described herein
Any combinations are realizing or perform.General processor can be microprocessor, but in alternative, the processor can be appointed
What conventional processor, controller, microcontroller or state machine.Processor is also implemented as the combination of computing device, example
The one or more microprocessors that cooperate with DSP core with the combination of microprocessor, multi-microprocessor such as DSP or it is any its
His such configuration.
The step of method described with reference to embodiment disclosed herein or algorithm, can be embodied directly in hardware, in by processor
In the software module of execution, or in combination of the two embody.Software module can reside in RAM memory, flash memory, ROM and deposit
Reservoir, eprom memory, eeprom memory, register, hard disk, removable disk, CD-ROM or known in the art appoint
In the storage medium of what other forms.Exemplary storage medium is coupled to processor so that the processor can be from/to the storage
Medium reads and writes information.In alternative, storage medium can be integrated into processor.Processor and storage medium can
Reside in ASIC.ASIC is can reside in user terminal.In alternative, processor and storage medium can be used as discrete sets
Part is resident in the user terminal.
In one or more exemplary embodiments, described function can be in hardware, software, firmware or its any combinations
Middle realization.If being embodied as computer program in software, each function can be instructed as one or more bars or generation
Code storage is transmitted on a computer-readable medium or by which.Computer-readable medium includes computer-readable storage medium and leads to
Both letter media, which includes any medium for facilitating computer program to shift from one place to another.Storage medium can be energy
Any usable medium being accessed by a computer.It is non-limiting as an example, such computer-readable medium may include RAM,
ROM, EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage apparatus can be used to carry or store
The desirable program code of instruction or data structure form and any other medium that can be accessed by a computer.Any connection is also by just
It is local to be referred to as computer-readable medium.For example, if software is using coaxial cable, fiber optic cables, twisted-pair feeder, digital subscriber line
, or the wireless technology of such as infrared, radio and microwave etc is passed from web site, server or other remote sources (DSL)
Send, then the coaxial cable, fiber optic cables, twisted-pair feeder, DSL or such as infrared, radio and microwave etc is wireless
Among technology is just included in the definition of medium.Disk (disk) as used herein and dish (disc) are including compact disc
(CD), laser disc, laser disc, digital versatile disc (DVD), floppy disk and blu-ray disc, which disk (disk) are often reproduced in the way of magnetic
Data, and dish (disc) laser reproduce data optically.Combinations of the above should also be included in computer-readable medium
In the range of.
It is for so that any person skilled in the art can all make or use this public affairs to provide of this disclosure being previously described
Open.Various modifications of this disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to spirit or scope of other variants without departing from the disclosure.Thus, the disclosure is not intended to be limited
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (4)
1. it is a kind of based on visible angle re-encode virtual reality live broadcast system, it is characterised in that include：
The virtual reality video of live person is transmitted to broadcaster by server：
Client, receives the virtual reality video from server forwarding and plays out；
Wherein client further includes to control harvester and video play device, and server further includes that viewing angle control is filled
Put and video code conversion device；
Control harvester is obtained the viewing angle control information of user and is transferred to video control information by video control passage
Visual angle controller；
Visual angle controller determines the corresponding virtual reality video content in visual angle according to video control information；
Video code conversion device generates the corresponding virtual reality video content in visual angle based on the corresponding virtual reality video content in visual angle
Video data and by video data channel by video data transmission to video play device；
Video play device plays the corresponding virtual reality video in visual angle after receiving the corresponding video data in visual angle.
2. it is according to claim 1 based on visible angle re-encode virtual reality live broadcast system, it is characterised in that visual angle
Control information includes rotational angle and displacement, and wherein rotational angle determines the direction at visual angle, and displacement determines virtual reality video
Scaling and visual range.
3. it is a kind of based on visible angle re-encode virtual reality live broadcasting method, it is characterised in that include：
Client obtains the viewing angle control information of user and video control information is transferred to server by video control passage；
Server determines the corresponding virtual reality video content in visual angle according to video control information；
Server generates the video of the corresponding virtual reality video content in visual angle based on the corresponding virtual reality video content in visual angle
Video data is simultaneously transmitted to client by data by video data channel；
Client plays the corresponding virtual reality video in visual angle after receiving the corresponding video data in visual angle.
4. it is according to claim 3 based on visible angle re-encode virtual reality live broadcasting method, it is characterised in that visual angle
Control information includes rotational angle and displacement, and wherein rotational angle determines the direction at visual angle, and displacement determines virtual reality video
Scaling and visual range.
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| CN201611040960.6A CN106534892A (en) | 2016-11-23 | 2016-11-23 | Virtual reality live broadcast system and method based on visual angle recoding |
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| CN201611040960.6A CN106534892A (en) | 2016-11-23 | 2016-11-23 | Virtual reality live broadcast system and method based on visual angle recoding |
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