CN108965746A - Image synthesizing method and system - Google Patents
Image synthesizing method and system Download PDFInfo
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- CN108965746A CN108965746A CN201810835465.7A CN201810835465A CN108965746A CN 108965746 A CN108965746 A CN 108965746A CN 201810835465 A CN201810835465 A CN 201810835465A CN 108965746 A CN108965746 A CN 108965746A
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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 embodiment of the present invention provides a kind of image synthesizing method and system.The method is applied to instructor in broadcasting's platform of image synthesizing system, which comprises receives Video Composition instruction, the Video Composition instruction includes at least video main body and video pictures from different video source；Determine the first video source where the video main body and the second video source where the video pictures；According to preset algorithm, the target video data of video main body described in first video source is extracted；The target video data is superimposed to the predeterminated position of second video source.The embodiment of the present invention is realized by instructor in broadcasting's platform on the basis of existing live streaming/recording and broadcasting system and scratches as and synthesize, it is convenient to operate, and remains original HD video data；It for live video source, can export in real time after composition, reduce delay, meet live streaming use demand.
Description
Technical field
The present embodiments relate to mobile communication technology field more particularly to a kind of image synthesizing method and systems.
Background technique
The live video shot with video-corder, audio, the picture signal of electronic equipment by (being included computer, view by video recording and broadcasting system
Frequency exhibition booth etc.) carry out integration synchronous recording, generate standardized files in stream media, be used to external live streaming, storage, later stage compilation,
Program request.Spectators can log in the audio-visual and graph text information that recording and broadcasting system server watches live streaming, can also later period order video information.
Video living transmission system is that the progress such as above-mentioned picture signal are acquired in real time to be encoded into standard flow data (such as FLV, WMV format)
It is managed, classifies etc. to be transmitted on server and be released by page format, watching live show or electricity in real time for spectators
Depending on program.
Net cast/recording and broadcasting system generally comprises instructor in broadcasting's platform, instructor in broadcasting's control keyboard, various video cameras and sound pick-up outfit, straight
It broadcasts, recorded broadcast host and later period film editing equipment etc..When needing while playing two or more pictures, net cast/record
The system of broadcasting generallys use the more pictures of partition type or picture-in-picture mode is broadcast live/recorded broadcast.And it scratches as and synthesizes carrying out
Under application scenarios, need to add additional stingy picture and synthesis processing equipment, background screen etc. in systems, site environment configuration is multiple
It is miscellaneous, higher cost, and will figure image be scratched and image transmission to be synthesized to scratching as equipment is handled, also need the later period after processing at
Reason, compared with raw frames, has certain delay, is unable to satisfy live streaming and requires.
Summary of the invention
The embodiment of the present invention provides a kind of image synthesizing method and system, to solve net cast/record in the prior art
When the system of broadcasting scratch as and synthesize, need to add additional stingy picture and synthesis processing equipment, background screen in systems
Deng configuration is complicated, higher cost and has the problem of centainly postponing.
On the one hand, the embodiment of the present invention provides a kind of image synthesizing method, applied to instructor in broadcasting's platform of image synthesizing system, institute
The method of stating includes:
Video Composition instruction is received, the Video Composition instruction includes at least video main body and view from different video source
Frequency picture；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；By the mesh
Mark the predeterminated position of video data overlay to second video source.
On the other hand, the embodiment of the present invention provides a kind of image synthesizing system, comprising: the input of at least two video sources is set
It is standby, instructor in broadcasting's platform and output source receiving device；
Wherein, instructor in broadcasting's platform is used for:
Video Composition instruction is received, the Video Composition instruction includes at least the video from different video source input equipment
The video main body and video pictures in source；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；
The target video data is superimposed to the predeterminated position of second video source, obtains video output source, by institute
Video output source is stated to export to the output source receiving device.
On the other hand, the embodiment of the invention also provides a kind of electronic equipment, including memory, processor, bus and
The computer program that can be run on a memory and on a processor is stored, the processor is realized above-mentioned when executing described program
Step in image synthesizing method.
In another aspect, being stored thereon with the embodiment of the invention also provides a kind of non-transient computer readable storage medium
Computer program realizes the step in above-mentioned image synthesizing method when described program is executed by processor.
Image synthesizing method provided in an embodiment of the present invention and system, receiving the video main body in different video source and
When the instruction of Video Composition that video pictures are synthesized, the first video source where the video main body and the video are determined
The second video source where picture carries out scratching picture according to preset algorithm, extracts video main body described in first video source
The target video data is superimposed to the predeterminated position of second video source by target video data, realizes different video source
Synthesis.On the basis of existing live streaming/recording and broadcasting system, is realized by instructor in broadcasting's platform and scratch as and synthesize, it is convenient to operate, and remains
Original HD video data；It for live video source, can export in real time after composition, reduce delay, meet live streaming and use need
It asks.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow diagram of image synthesizing method provided in an embodiment of the present invention；
Fig. 2 is the block diagram for the image synthesizing system of the embodiment of the present invention provided；
Fig. 3 is one of the flow diagram of specific example provided of the embodiment of the present invention；
Fig. 4 is the two of the flow diagram for the specific example of the embodiment of the present invention provided；
Fig. 5 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 shows a kind of flow diagram of image synthesizing method provided in an embodiment of the present invention.
As shown in Figure 1, image synthesizing method provided in an embodiment of the present invention, applied to instructor in broadcasting's platform of image synthesizing system,
The method specifically includes the following steps:
Step 101, Video Composition instruction is received, the Video Composition instruction includes at least the video from different video source
Main body and video pictures.
Wherein, the instruction that Video Composition instruction synthesizes different video source for instruction.In Video Composition instruction at least
Including a video main body and a video pictures, and the video main body and the video pictures come from different video source.Video main body is
By scratching the main body as obtaining from a video source, which is added to another video source by Video Composition instruction instruction
In video pictures.
As a specific example, referring to fig. 2, Fig. 2 provides a kind of image synthesizing system, including video source input, leads
Broadcast platform, output source receiving device etc..Image synthesizing method in the embodiment of the present invention is applied to instructor in broadcasting's platform in Fig. 2, wherein leads
Broadcast the Video Composition instruction that platform receives configuration tool (such as remote controler).
Step 102, the first video source where the video main body and the second view where the video pictures are determined
Frequency source.
Wherein, analysis Video Composition instruction, where determining the first video source and the video pictures where video main body
Second video source；Video main body can be a particular persons, video pictures be the video after synthesis it is last that, for being video
The picture of main body offer background.
Preferably, first video source, the second video source are live video source or recorded broadcast video source.
For example, needing the teacher to teach on classroom one to be synthesized to the target other than a classroom in Video Composition instruction
When in scene, the corresponding video source in the classroom is the first video source, and teacher is video main body；Target scene, that is, video pictures, mesh
Video source where marking scene is the second video source.
Step 103, according to preset algorithm, the target video data of video main body described in first video source is extracted.
Wherein, preset algorithm is the algorithm for extracting target video data from the first video source.It, will according to preset algorithm
The target video data comprising target subject of first video source extracts, for example, each frame for the first video source regards
Frequency picture will include the part progress FIG pull handle of video main body in each frame video pictures, after obtaining FIG pull handle frame by frame
Picture, and integrated to obtain target video data.
Step 104, the target video data is superimposed to the predeterminated position of second video source.
Wherein, target video data is added to the predeterminated position of the second video source, i.e. the second video source of predeterminated position
In picture, for showing the position of video main body.For example, picture A is to obtain to the video pictures FIG pull handle of the first video source
The picture including video main body, picture B is the video pictures of the second video source, and position C is in picture B for showing picture A
Position, then picture A is superimposed upon at the C of position, the picture after being synthesized.
In the above embodiment of the present invention, instructor in broadcasting's platform is being received video main body and the video pictures progress in different video source
The Video Composition of synthesis instructs；Determine the first video source where the video main body and second where the video pictures
Video source carries out scratching picture according to preset algorithm, extracts the target video data of video main body described in first video source, will
The target video data is superimposed to the predeterminated position of second video source, realizes the synthesis in different video source.Existing straight
Broadcast/recording and broadcasting system on the basis of, realized by instructor in broadcasting's platform scratch as and synthesis, it is convenient to operate, and remains original HD video number
According to；It for live video source, can export in real time after composition, reduce delay, meet live streaming use demand；The embodiment of the present invention
It simplifies profession, complex environment in existing video keying and the application scenarios of conjunction to build, save the cost.Solution of the embodiment of the present invention
When net cast/recording and broadcasting system in the prior art of having determined scratch as and synthesize, need to add additional scratch in systems
As and synthesis processing equipment, background screen etc., configuration is complicated, higher cost and has the problem of centainly postponing.
Optionally, described according to preset algorithm in the embodiment of the present invention, extract video master described in first video source
The step of target video data of body, comprising:
According to preset algorithm, in every frame video data for extracting first video source, including the video main body the
One target data；
According to the first object data of video data described in every frame, the target video data of the video main body is obtained.
Wherein, preset algorithm is the algorithm for extracting target video data from the first video source.For the first video source
Every frame video data, respectively according to preset algorithm extract include video main body first object data, further according to all first
Target data, obtain include video main body target video data.For example, for each frame video pictures of the first video source,
It will include that the part of video main body carries out FIG pull handle in each frame video pictures, picture after obtaining FIG pull handle frame by frame, and
It is integrated to obtain target video data.
Further, in the embodiment of the present invention, in the every frame video data for extracting first video source, including institute
The step of stating the first object data of video main body, comprising:
For every frame video data of first video source, every data line of the video data is scanned, color is obtained
The start-stop point of difference variation, the data between the start-stop point are in the row data include the video main body the second number of targets
According to；
According to the second target data of every data line, the first object data of the video main body are obtained.
Wherein, every frame video data (such as yuv data based on colour coding method) of the first video source, progressive scan
Every data line determines the range where video main body according to the color difference between body color and background color, carries out scratching picture；It scratches
Picture process obtains the start-stop point of chromatic aberration mainly including the use of default color difference method, and the data between the start-stop point are should
It include the second target data of the video main body in row data；And due to scratching as needing, the color of main body itself needs and background
There are certain gaps for color color.
According to the original yuv data of acquisition, the start-stop point of chromatic aberration is obtained, determines and cuts start-stop point, progressively scans number
According to being cut, the second target data is obtained；
Further according to the second all target datas, the first object data of the frame video data are obtained.
Optionally, described that the target video data is superimposed to the pre- of second video source in the embodiment of the present invention
If the step of position, comprising:
It determines in second video source, the seat of the predeterminated position where video main body described in video pictures described in every frame
Mark range；
The video data for obtaining the coordinate range, by the video of the value added coordinate range of the first object stacked data
In data.
Wherein, for the second video source, it is first determined its picture for needing to be superimposed the video main body, i.e. video pictures.
After determining video pictures, the coordinate range of the predeterminated position where video main body is further determined that, and by the first of video main body
Target data is superimposed upon in video pictures.For example, picture A is the first object data of video main body, picture B is the second video source
Video pictures, position C be picture B in preset position coordinates range, then picture A is superimposed upon at the C of position, after being synthesized
Picture.
Optionally, the resolution ratio setting and synthesis coordinates of targets point setting as channel can be also scratched, for example, can will regard
Frequency body reduced is superimposed upon the edge of target image.
Optionally, in the embodiment of the present invention, the video by the value added coordinate range of the first object stacked data
After step in data, the method also includes:
Pre-arranged code processing is carried out to superimposed video data, obtains video output source.
Wherein, after completing video superposition, pre-arranged code processing is carried out to superimposed video data, obtains video output
Source, and export and give output source receiving device.
It further include saving video output source to instructor in broadcasting's playscript with stage directions after obtaining video output source in the embodiment of the present invention
Ground.
Correspondingly, in the embodiment of the present invention, the method also includes:
The audio data of first video source is relayed.
Wherein, due to the image synthesizing method in the embodiment of the present invention, mainly obtain the video of video main body, and by its
It is synthesized in the second video source, therefore, the video output source after synthesis should retain the audio of video main body, therefore, regard in synthesis
During frequency, the audio data of the first video source should be relayed, retain the audio data of the first video source.
In the above embodiment of the present invention, instructor in broadcasting's platform is being received video main body and the video pictures progress in different video source
When the Video Composition instruction of synthesis, the first video source where the video main body and the where the video pictures is determined
Two video sources carry out scratching picture according to preset algorithm, extract the target video data of video main body described in first video source,
The target video data is superimposed to the predeterminated position of second video source, realizes the synthesis in different video source.Existing
On the basis of live streaming/recording and broadcasting system, is realized by instructor in broadcasting's platform and scratch as and synthesize, it is convenient to operate, and remains original HD video
Data；It for live video source, can export in real time after composition, reduce delay, meet live streaming use demand；The present invention is implemented
Example simplifies profession, complex environment in existing video keying and the application scenarios of conjunction and builds, save the cost.
Image synthesizing method provided in an embodiment of the present invention is described above, introduces the present invention below in conjunction with attached drawing and implements
The image synthesizing system that example provides.
Referring to fig. 2, Fig. 2 provides a kind of image synthesizing system, comprising: at least two video source inputs, Dao Botai
And output source receiving device；
Wherein, instructor in broadcasting's platform is used for:
Video Composition instruction is received, the Video Composition instruction includes at least the video from different video source input equipment
The video main body and video pictures in source；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；
The target video data is superimposed to the predeterminated position of second video source, obtains video output source, by institute
Video output source is stated to export to the output source receiving device.
Wherein, the instruction that Video Composition instruction synthesizes different video source for instruction.Video main body is i.e. by from one
The main body as obtaining is scratched in video source, and the video main body is added in the video pictures of another video source.
Instructor in broadcasting's platform analyzes Video Composition instruction, where determining the first video source and the video pictures where video main body
The second video source；Video main body can be a particular persons, video pictures be the video after synthesis it is last that, for for view
The picture of frequency main body offer background.
Preferably, first video source, the second video source are live video source or recorded broadcast video source.
For example, needing the teacher to teach on classroom one to be synthesized to the target other than a classroom in Video Composition instruction
When in scene, the corresponding video source in the classroom is the first video source, and teacher is video main body；Target scene, that is, video pictures, mesh
Video source where marking scene is the second video source.
Preset algorithm is the algorithm for extracting target video data from the first video source.Instructor in broadcasting's platform according to preset algorithm,
The target video data comprising target subject of first video source is extracted, for example, for each frame of the first video source
Video pictures will include the part progress FIG pull handle of video main body in each frame video pictures, after obtaining FIG pull handle frame by frame
Picture, and integrated to obtain target video data.
Target video data is added to the predeterminated position of the second video source by instructor in broadcasting's platform, obtains video output source, will be described
Video output source is exported to the output source receiving device.In the predeterminated position i.e. picture of the second video source, for showing video
The position of main body.
Optionally, in the embodiment of the present invention, the system also includes:
Audio processing equipment, for the audio data of first video source to be transmitted to output source receiving device or is preset
Audio reception device.
Wherein, due to the image synthesizing method in the embodiment of the present invention, mainly obtain the video of video main body, and by its
It is synthesized in the second video source, therefore, the video output source after synthesis should retain the audio of video main body, therefore, regard in synthesis
During frequency, audio processing, which is set, relays the audio data of the first video source, retains the audio data of the first video source.
With continued reference to Fig. 2, as a specific example with classroom instruction, image synthesizing system includes 4 video source inputs,
Instructor in broadcasting's platform, audio processing equipment, output source receiving device 1 and output source receiving device 2.Instructor in broadcasting's platform is that the core of this system is set
It is standby, the high-performance embedded framework of multicore multi -CPU can be used, software is developed based on Linux+Android dual system.
Pass through high-definition multimedia interface (High Definition between instructor in broadcasting's platform and video source input
Multimedia Interface, HDMI) video line connection.
Wherein, video source input include two as the courseware acquisition device of the second video source and two as first
The video acquisition device of video source；Wherein, courseware acquisition device distinguishes the teaching and research host of A1, A2 laptop；Video acquisition dress
Respectively A3 student's video camera is set, for acquiring student's video, A4 teacher's video camera, for acquiring teacher's video.Video source is defeated
Entering equipment can be 1080P high definition device.
Output source receiving device 1 can be display equipment, including two display modules of B1 and B2；Output source receiving device 2
It can be streaming media server or service platform.
Instructor in broadcasting's platform acquires the video source of 4 video source inputs, and audio processing equipment also acquires the audio number of A3, A4
According to.Wherein, audio processing equipment includes multiple microphone apparatus.
Instructor in broadcasting's platform receives the Video Composition instruction that configuration equipment issues, and instruction merges A4 and A1, wherein configuration
Tool can control instructor in broadcasting's platform, can manipulate the video switching of instructor in broadcasting's platform and scratch the picture and selecting synthesized as picture.
Instructor in broadcasting's platform determines that A4 is the first video source, and A1 is the second video source；According to preset algorithm, first video is extracted
The target video data of video main body described in source (i.e. teacher)；The target video data is superimposed to second video source
Predeterminated position, for example be inserted into a position in courseware, the video output source after being synthesized.
Specifically, it referring to Fig. 3, scratches as and synthesizes, mainly include following procedure in cataloged procedure:
The contents such as video processing, including scaling are carried out to the first video source, carry out scratching picture after video processing.
Second video source is synthesized with the first video source scratched as after, after synthesizing single-image all the way, according to H.264
Algorithm carries out dual code stream (1080P+D1) coding, obtains output video source and exports.
Instructor in broadcasting's platform also provides real time streaming transport protocol (Real Time Streaming Protocol, RTSP) service, into
Row real-time live broadcast simultaneously recording and storing into the local hard drive of instructor in broadcasting's platform.
In the above process, instructor in broadcasting's platform one co-exists in the four unpressed video source datas of tunnel high definition, can be according to classroom and activity
The position adjustment of the actual needs of scene and background screen, courseware content etc., intercept the video data of needs, synthesis one is complete
Whole single video and audio file.
Further, referring to fig. 4, it for the stingy as process of single frame video data, mainly comprises the steps that
Step 401, one-frame video data is obtained.
Step 402, every data line of the frame video data is scanned；
Step 403, chromatic aberration is judged whether there is:
If so, executing step 404, otherwise, return step 402；
Step 404, the start-stop point of chromatic aberration is obtained, the data between start-stop point are saved.
Step 405, when scanning a line to the end, terminate process.
In above-mentioned example, on the basis of existing live streaming/recording and broadcasting system, is realized by instructor in broadcasting's platform and scratch as and synthesize, operation
It is convenient, and remain original HD video data；It for live video source, can export in real time after composition, reduce delay, it is full
Foot live streaming use demand；Simplify in existing video keying and the application scenarios of conjunction profession, complex environment is built, save at
This.It is defeated by, using output, code storage technology in real time, being scratched as synthesis to the local video data in be input to system
Synthetic video with monitoring is checked on site out, and for coding for being broadcast live, storage is used for recorded broadcast.And scratch as being scratched using color difference as technology,
In background situation appropriate, accuracy rate is with stingy as efficiency can satisfy general use demand.
The main usage scenario of above-mentioned example is the scenes such as teacher and meeting, is straight due to attending class or presiding over movable personage
Broadcast picture main body, video main body can preferably draw oneself up the carry out activity in the background screen of video pictures, while can be with
Composite result is watched in real time by output source receiving device, can be adjusted self-position in time and be reached preferable effect.
In the above embodiment of the present invention, instructor in broadcasting's platform of image synthesizing system is being received the video main body in different video source
When the Video Composition instruction synthesized with video pictures；Determine the first video source and the view where the video main body
The second video source where frequency picture carries out scratching picture according to preset algorithm, extracts video main body described in first video source
Target video data, the target video data is superimposed to the predeterminated position of second video source, realizes different video
The synthesis in source.It on the basis of existing live streaming/recording and broadcasting system, is realized by instructor in broadcasting's platform and scratches as and synthesize, it is convenient to operate, and retains
Original HD video data；It for live video source, can export in real time after composition, reduce delay, meet live streaming and use
Demand.
Fig. 5 shows the structural schematic diagram of a kind of electronic equipment of further embodiment of this invention offer.
Referring to Fig. 5, electronic equipment provided in an embodiment of the present invention, the electronic equipment include memory (memory) 51,
Processor (processor) 52, bus 53 and it is stored in the computer program that can be run on memory 51 and on a processor.
Wherein, the memory 51, processor 52 complete mutual communication by the bus 53.
The processor 52 is used to call the program instruction in the memory 51, realizes when executing described program as schemed
1 method.
In another embodiment, following method is realized when the processor executes described program:
Video Composition instruction is received, the Video Composition instruction includes at least video main body and view from different video source
Frequency picture；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；By the mesh
Mark the predeterminated position of video data overlay to second video source.
Electronic equipment provided in an embodiment of the present invention can be used for executing the corresponding program of method of above method embodiment,
This implementation repeats no more.
Electronic equipment provided in an embodiment of the present invention, receive by the video main body in different video source and video pictures into
When the Video Composition instruction of row synthesis, where determining the first video source and the video pictures where the video main body
Second video source carries out scratching picture according to preset algorithm, extracts the target video number of video main body described in first video source
According to the target video data to be superimposed to the predeterminated position of second video source, realizes the synthesis in different video source.Existing
It on the basis of having live streaming/recording and broadcasting system, is realized by instructor in broadcasting's platform and scratches as and synthesize, it is convenient to operate, and remains original high definition view
Frequency evidence；It for live video source, can export in real time after composition, reduce delay, meet live streaming use demand.
A kind of non-transient computer readable storage medium that further embodiment of this invention provides, the non-transient computer can
It reads to be stored with computer program on storage medium, realize when described program is executed by processor such as the step of Fig. 1.
In another embodiment, following method is realized when described program is executed by processor:
Video Composition instruction is received, the Video Composition instruction includes at least video main body and view from different video source
Frequency picture；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；By the mesh
Mark the predeterminated position of video data overlay to second video source.
Non-transient computer readable storage medium provided in an embodiment of the present invention, realization when described program is executed by processor
The method of above method embodiment, this implementation repeat no more.
Non-transient computer readable storage medium provided in an embodiment of the present invention is being received the video in different video source
When the instruction of Video Composition that main body and video pictures are synthesized, the first video source where the video main body and institute are determined
The second video source where video pictures is stated, is carried out scratching picture according to preset algorithm, extracts video described in first video source
The target video data is superimposed to the predeterminated position of second video source by the target video data of main body, is realized different
The synthesis of video source.On the basis of existing live streaming/recording and broadcasting system, is realized by instructor in broadcasting's platform and scratch as and synthesize, it is convenient to operate, and
Remain original HD video data；It for live video source, can export in real time after composition, reduce delay, meet live streaming
Use demand.
Further embodiment of this invention discloses a kind of computer program product, and the computer program product is non-including being stored in
Computer program in transitory computer readable storage medium, the computer program include program instruction, when described program refers to
When order is computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example,
Video Composition instruction is received, the Video Composition instruction includes at least video main body and view from different video source
Frequency picture；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；By the mesh
Mark the predeterminated position of video data overlay to second video source.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of image synthesizing method, instructor in broadcasting's platform applied to image synthesizing system characterized by comprising
Video Composition instruction is received, the Video Composition instruction includes at least video main body and video from different video source and draws
Face；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；
The target video data is superimposed to the predeterminated position of second video source.
2. the method according to claim 1, wherein described according to preset algorithm, extraction first video source
Described in video main body target video data the step of, comprising:
According to preset algorithm, in the every frame video data for extracting first video source, the first mesh including the video main body
Mark data；
According to the first object data of video data described in every frame, the target video data of the video main body is obtained.
3. according to the method described in claim 2, it is characterized in that, the every frame video data for extracting first video source
In, include the steps that the first object data of the video main body, comprising:
For every frame video data of first video source, every data line of the video data is scanned, obtains color difference change
The start-stop point of change, the data between the start-stop point are in the row data include the video main body the second target data；
According to the second target data of every data line, the first object data of the video main body are obtained.
4. according to the method described in claim 2, it is characterized in that, described be superimposed to described second for the target video data
The step of predeterminated position of video source, comprising:
It determines in second video source, the coordinate model of the predeterminated position where video main body described in video pictures described in every frame
It encloses；
The video data for obtaining the coordinate range, by the video data of the value added coordinate range of the first object stacked data
In.
5. according to the method described in claim 4, it is characterized in that, described by the value added coordinate of the first object stacked data
After step in the video data of range, the method also includes:
Pre-arranged code processing is carried out to superimposed video data, obtains video output source.
6. the method according to claim 1, wherein the method also includes:
The audio data of first video source is relayed.
7. a kind of image synthesizing system characterized by comprising at least two video source inputs, instructor in broadcasting's platform and output
Source receiving device；
Wherein, instructor in broadcasting's platform is used for:
Video Composition instruction is received, the Video Composition instruction includes at least the video source from different video source input equipment
Video main body and video pictures；
Determine the first video source where the video main body and the second video source where the video pictures；
According to preset algorithm, the target video data of video main body described in first video source is extracted；
The target video data is superimposed to the predeterminated position of second video source, obtains video output source, by the view
Frequency output source is exported to the output source receiving device.
8. system according to claim 7, which is characterized in that further include:
Audio processing equipment, for the audio data of first video source to be transmitted to output source receiving device or preset audio
Receiving device.
9. a kind of electronic equipment, which is characterized in that on a memory and can be including memory, processor, bus and storage
The computer program run on processor, the processor are realized when executing described program such as any one of claims 1 to 6 institute
The step in image synthesizing method stated.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, it is characterised in that: described program
It realizes when being executed by processor such as the step in image synthesizing method described in any one of claims 1 to 6.
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