CN109255996A - A kind of the broadcasting optimization method and system of Online class - Google Patents
A kind of the broadcasting optimization method and system of Online class Download PDFInfo
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- CN109255996A CN109255996A CN201811296287.1A CN201811296287A CN109255996A CN 109255996 A CN109255996 A CN 109255996A CN 201811296287 A CN201811296287 A CN 201811296287A CN 109255996 A CN109255996 A CN 109255996A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
- G09B5/14—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations with provision for individual teacher-student communication
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
- G09B5/10—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations all student stations being capable of presenting the same information simultaneously
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Abstract
The invention belongs to electronic instruction technical field, in particular to the broadcasting optimization method of a kind of Online class, comprising the following steps: acquire current frame image, and obtain the focus area of students subject and Teachers ' Subject vision in current frame image；Transmission strategy is formulated according to focus area, the information flow transmitted to Online class is adjusted.There are a large amount of needs and pass through the information of the Internet transmission between teacher end and student side in Online class, the present invention mainly proposes the real-time sight attention rate according to students subject and Teachers ' Subject, according to Strategy Center, common and different information is calculated to be transmitted, to effectively meet the otherness between students subject individual, guarantee classroom experience and effect, the present invention can similarly be accompanied by the software and hardware situation of the operating conditions of students subject and Teachers ' Subject, Network status and terminal, and be suitable for on-line meeting, the systems such as main broadcaster is broadcast live.Meanwhile a kind of broadcasting optimization system of Online class being also claimed in the present invention.
Description
Technical field
The invention belongs to electronic instruction technical field, in particular to the broadcasting optimization method and system of a kind of Online class.
Background technique
Online class is called online class, is the remote online interaction training classroom based on internet, and General System is adopted
With network transmission technologies such as audio video transmission and data collaboratives, true class environment is simulated, is provided with by network to student
Effect ground Training Environment.
At present during actual use, there are a large amount of needs to pass through between teacher end and student side for Online class
The information of the Internet transmission, but the software and hardware situation that the unstable and each terminal that is constrained to current Network status is different,
The software and hardware situation according to Network status and receiving end is proposed, according to Strategy Center, calculates common and different information
The prioritization scheme transmitted, such as Chinese invention patent " a kind of Online class in transmission of video dynamic adjusting method and system "
Provided in (application number 2015102933544) solve Online class in audio-video-interactive one-to-many scene in, when it is multiple not
With the ability to accept of receiving end can not predict when, and the case where different receiving ends can not be by itself, feeds back to transmitting terminal,
Transmitting terminal cannot adjust in real time transmission according to the case where receiving end, thus due to the processing capacity and net of different receiving ends
The difference of network situation, the problem for causing the acceptable effect difference of different receiving ends larger.But is optimized by the above method and completed
Result the problem of only can solve individual receiving end picture Catons, what is be directed to is only Network status and equipment software and hardware item
Part, and can not student's situation to each receiving end carry out targetedly Online class and optimize and revise.
In view of the above problems, the present inventor is based on being engaged in such product engineering application practical experience and profession abundant for many years
Knowledge, and cooperate the utilization of scientific principle, is actively subject to research and innovation, to found a kind of broadcasting optimization method of Online class and be
System makes it with more practicability.
Summary of the invention
The problem to be solved in the present invention is to provide the broadcasting optimization methods and system of a kind of Online class, thus for each
Student's situation of receiving end carries out targetedly Online class and optimizes and revises.
In order to achieve the above object, the technical scheme adopted by the invention is that: a kind of broadcasting optimization method of Online class,
The following steps are included:
Current frame image is acquired, and obtains the focus area of students subject and Teachers ' Subject vision in the current frame image；
Transmission strategy is formulated according to the focus area, the information flow transmitted to Online class is adjusted.
Further, the acquisition modes of the focus area include:
The audio-frequency information of Teachers ' Subject is obtained, and detects the Teachers ' Subject in the current frame image, judges the audio letter
Whether the concern position that in the current frame image is directed to the Teachers ' Subject is specified in breath, if specifying the concern position,
Then the concern position is the focus area；
The action message for judging the Teachers ' Subject, by the motive position of the Teachers ' Subject as the focus area；
It detects the students subject and Teachers ' Subject in the current frame image, determines the students subject and Teachers ' Subject
LOS coordinate of the sight in the current frame image, the LOS coordinate are the focus area.
Further, the adjustment of the information flow includes:
When recording and digital coding, the clarity and fluency of the preferential focus area；
When network transmission, preferentially guarantee the transmission of the focus area；
When playing, the decoding and broadcasting of the preferential focus area, and by the focal area in the current frame image
Domain carries out partial enlargement.
Further, the process students subject and Teachers ' Subject detected the following steps are included: obtaining described in
Displacement of the object relative to the object in previous frame image in current frame image, if the displacement is greater than preset value,
Determine that the object is students subject or Teachers ' Subject.
It further, further include acquisition to the students subject and Teachers ' Subject input action, it is dynamic according to the input
The collection result of work, in conjunction with the focus area, the information flow transmitted to Online class is adjusted.
It further, further include acquisition to each student side access equipment parameter information, the parameter information at least wraps
Include Netowrk tape width values, packet loss and processor working frequency value.
It further, further include by the adjustment of current procedures information flow, as the feedback of previous step, and according to feedback result
Correct the strategy of previous step.
A kind of broadcasting optimization system of Online class, which is characterized in that including camera unit, audio collection unit, analysis
Unit, processing unit and transmission unit；
The camera unit detects the Moving Objects in the current frame image, and will adopt for acquiring current frame image
Collection information is transmitted to the analytical unit；
The audio collection unit is transmitted to described point for being acquired to the audio-frequency information of Teachers ' Subject, and by collection result
Analyse unit；
The analytical unit is for analyzing the collection result of the camera unit and the audio collection unit, and described point
Analysis includes that the concern position to the Teachers ' Subject, described whether is emphasized in the audio collection unit audio-frequency information collected
It is learned in camera unit frame information collected with the presence or absence of described in the motive position of the Teachers ' Subject and the frame information
The sight focal position of raw main body and Teachers ' Subject；
The processing unit is used to adjust the information flow for transmitting each student side according to the analysis result of the analytical unit；
The transmission unit is used to send the corresponding information flow received to each student side.
It further, further include receiving unit, the receiving unit is for obtaining each student side access device
Parameter information, and the parameter information is transmitted to the analytical unit, the foundation as information flow adjustment, wherein institute
Parameter information is stated including at least Netowrk tape width values, packet loss and processor working frequency value.
It further, further include movement acquisition unit, the movement acquisition unit is for acquiring the student side and teacher
The input action at end, the input action include at least mouse click and contact action.
Through the above technical solutions, the beneficial effects of the present invention are:
There are a large amount of needs between teacher end and student side by the information of the Internet transmission in Online class, the present invention mainly mentions
Common and different letter is calculated according to Strategy Center according to the real-time sight attention rate of students subject and Teachers ' Subject out
Breath is transmitted, to effectively meet the otherness between students subject individual, guarantees classroom experience and effect, the present invention
It can be equally accompanied by the software and hardware situation of the operating conditions of students subject and Teachers ' Subject, Network status and terminal, and be applicable in
In on-line meeting (recorded broadcast/live streaming), the systems such as main broadcaster's live streaming.
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 only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow chart of the broadcasting optimization method of Online class in the present invention；
Fig. 2 is the frame diagram of the broadcasting optimization system of Online class in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
The embodiment of the present invention is write in a progressive manner.
A kind of broadcasting optimization method of Online class, as shown in Figure 1, comprising the following steps:
Step 1；Acquire current frame image, wherein the acquisition for current frame image is multi pass acquisition, including camera, screen
Or telecreen etc., the focus area of students subject and Teachers ' Subject vision is obtained after acquisition in current frame image, specifically
Acquisition modes include:
Mode one: obtaining the audio-frequency information of Teachers ' Subject, and detects the Teachers ' Subject in current frame image, judges audio-frequency information
In whether specify the concern position that Teachers ' Subject is directed in current frame image, if specified concern position, which is
Focus area, for example, teacher emphasizes " see my nozzle type " in audio-frequency information, then it is religion that concern position is specified in current frame image
The mouth position of teacher's main body；
Mode two: judging the action message of Teachers ' Subject, by the motive position of Teachers ' Subject as focus area.Such as in teacher
During writing on the blackboard, then the hand position write is focus area；During teacher carries out test equipment demonstration, then operate
Hand position be focus area；
Mode three: the students subject and Teachers ' Subject in current frame image are detected, determines the view of students subject and Teachers ' Subject
LOS coordinate of the line in current frame image, LOS coordinate are focus area；
Step 2；Transmission strategy is formulated according to determining above-mentioned focus area, the information flow transmitted to Online class is adjusted
It is whole, the adjustment of information flow respectively recording, network transmission and play when real-time perfoming, wherein when record and digital coding
When, the clarity and fluency of preferential focus area；When network transmission, the preferential transmission for guaranteeing focus area；When playing,
The decoding and broadcasting of preferential focus area, and focus area is subjected to partial enlargement in current frame image.
It, can be individually for a student side during the partial enlargement of focus point region as the preferred of above-described embodiment
Or the video window of teacher side carries out partial enlargement, it can also be to the video window of multiple student sides and teacher side progress putting simultaneously
Greatly, wherein above-mentioned simultaneity is directed to the approximate students subject of LOS coordinate and Teachers ' Subject.
As the preferred of above-described embodiment, the process that students subject and Teachers ' Subject are detected is the following steps are included: obtain
Displacement of the object in current frame image relative to the object in previous frame image is obtained, if displacement is greater than preset value, it is determined that should
Object is students subject or Teachers ' Subject.
In order to consider the operation of Teachers ' Subject and students subject into the optimization process entirely played, so that optimization
Process is more perfect, and the broadcasting optimization method of Online class further includes the acquisition to students subject and Teachers ' Subject input action,
According to the collection result of input action, in conjunction with focus area, the information flow transmitted to Online class is adjusted, wherein dynamic
Make to include click and touch of finger of mouse etc., for example, when Online class is played out by the APP on electronic equipment,
By the acquisition of above-mentioned movement, the click location that can integrate each functional module on current frame image judges students subject or teacher
Main body is carrying out the operation and selection of those functional modules, so as to carry out the more personalized targetedly optimization of information flow
Adjustment；Again or classroom main body and students subject are without portrait, and PPT is explained to PPT or operated to only Teachers ' Subject, with
And when students subject viewing PPT or operation PPT, the mode that above-mentioned movement acquisition can also be used is optimized.
As the preferred of above-described embodiment, the broadcasting optimization method of Online class further includes to each student side access device
The acquisition of parameter information, wherein parameter information includes at least Netowrk tape width values, packet loss and processor working frequency value, passes through
This preferred embodiment has taken into account wanting for different student side image qualities, transmission speed and real-time etc. during classroom interaction
It asks, the reasonable distribution image quality according to different needs under the premise of meeting picture smoothness and stablizing, to realize that function is optimal
And the optimal displaying of image quality.
It further include by the adjustment of current procedures information flow, as upper to realize the adjustment of closed loop in whole optimization process
The feedback of one step, and transmission information is compiled again according to Strategy Center according to the strategy of feedback result amendment previous step
Code, transmission process, the optimal information for reaching device end play, to guarantee that classroom is experienced.
A kind of broadcasting optimization system of Online class, as shown in Fig. 2, including camera unit, audio collection unit, analysis
Unit, processing unit and transmission unit；Camera unit detects the movement in current frame image for acquiring current frame image
Object, and acquisition information is transmitted to analytical unit；Audio collection unit is used to be acquired the audio-frequency information of Teachers ' Subject,
And collection result is transmitted to analytical unit；Analytical unit is used to carry out the collection result of camera unit and audio collection unit
Analysis, analysis include that concern position to Teachers ' Subject, camera shooting whether are emphasized in audio collection unit audio-frequency information collected
With the presence or absence of the motive position of Teachers ' Subject and frame information middle school student main body and Teachers ' Subject in unit frame information collected
Sight focal position；Processing unit is used to adjust the information for transmitting each student side according to the analysis result of analytical unit
Stream；Transmission unit is used to send the corresponding information flow received to each student side.
In above-described embodiment, real-time sight attention rate of the proposition according to students subject and Teachers ' Subject, foundation Strategy Center,
It calculates common and different information to be transmitted, to effectively meet the otherness between students subject individual, optimization
Classroom experience and effect.
As the preferred of above-described embodiment, playing optimization system further includes receiving unit, and receiving unit is each for obtaining
The parameter information of student side access device, and parameter information is transmitted to analytical unit, as the foundation of information flow adjustment,
In, parameter information includes at least Netowrk tape width values, packet loss and processor working frequency value；Further include movement acquisition unit, moves
Make acquisition unit and includes at least mouse for acquiring the input action of student side and teacher side, input action and click and touch screen behaviour
Make, by above-mentioned preferred embodiment, entire optimization process is allowed to be accompanied by the operating conditions of students subject and Teachers ' Subject, network
The software and hardware situation of situation and terminal, thus more perfect.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of broadcasting optimization method of Online class, which comprises the following steps:
Current frame image is acquired, and obtains the focus area of students subject and Teachers ' Subject vision in the current frame image；
Transmission strategy is formulated according to the focus area, the information flow transmitted to Online class is adjusted.
2. the broadcasting optimization method of Online class according to claim 1, which is characterized in that the acquisition of the focus area
Mode includes:
The audio-frequency information of Teachers ' Subject is obtained, and detects the Teachers ' Subject in the current frame image, judges the audio letter
Whether the concern position that in the current frame image is directed to the Teachers ' Subject is specified in breath, if specifying the concern position,
Then the concern position is the focus area；
The action message for judging the Teachers ' Subject, by the motive position of the Teachers ' Subject as the focus area；
It detects the students subject and Teachers ' Subject in the current frame image, determines the students subject and Teachers ' Subject
LOS coordinate of the sight in the current frame image, the LOS coordinate are the focus area.
3. the broadcasting optimization method of Online class according to claim 1, which is characterized in that the adjustment package of the information flow
It includes:
When recording and digital coding, the clarity and fluency of the preferential focus area；
When network transmission, preferentially guarantee the transmission of the focus area；
When playing, the decoding and broadcasting of the preferential focus area, and by the focal area in the current frame image
Domain carries out partial enlargement.
4. the broadcasting optimization method of Online class according to claim 2, which is characterized in that the students subject and religion
Process that teacher's main body is detected is the following steps are included: obtain object in the current frame image relative in previous frame image
The object displacement, if it is described displacement be greater than preset value, it is determined that the object be students subject or Teachers ' Subject.
5. the broadcasting optimization method of Online class according to claim 1, which is characterized in that further include to the student master
The acquisition of body and Teachers ' Subject input action, according to the collection result of the input action, in conjunction with the focus area, to online
The information flow that classroom is transmitted is adjusted.
6. the broadcasting optimization method of Online class according to claim 1 or 5, which is characterized in that further include to each
The acquisition for access equipment parameter information of causing trouble, the parameter information include at least Netowrk tape width values, packet loss and processor work
Frequency values.
7. the broadcasting optimization method of described in any item Online class according to claim 1 ~ 5, which is characterized in that further include that will work as
The adjustment of preceding Step Information stream, as the feedback of previous step, and according to the strategy of feedback result amendment previous step.
8. a kind of broadcasting optimization system of Online class, which is characterized in that single including camera unit, audio collection unit, analysis
Member, processing unit and transmission unit；
The camera unit detects the Moving Objects in the current frame image, and will adopt for acquiring current frame image
Collection information is transmitted to the analytical unit；
The audio collection unit is transmitted to described point for being acquired to the audio-frequency information of Teachers ' Subject, and by collection result
Analyse unit；
The analytical unit is for analyzing the collection result of the camera unit and the audio collection unit, and described point
Analysis includes that the concern position to the Teachers ' Subject, described whether is emphasized in the audio collection unit audio-frequency information collected
With the presence or absence of the motive position of the Teachers ' Subject and the frame information middle school student master in camera unit frame information collected
The sight focal position of body and Teachers ' Subject；
The processing unit is used to adjust the information flow for transmitting each student side according to the analysis result of the analytical unit；
The transmission unit is used to send the corresponding information flow received to each student side.
9. the broadcasting optimization system of Online class according to claim 8, which is characterized in that it further include receiving unit, institute
Receiving unit is stated for obtaining the parameter information of each student side access device, and the parameter information is transmitted to described
Analytical unit, the foundation as information flow adjustment, wherein the parameter information includes at least Netowrk tape width values, packet loss
With processor working frequency value.
10. the broadcasting optimization system of Online class according to claim 8 or claim 9, which is characterized in that further include movement acquisition
Unit, the movement acquisition unit are used to acquire the input action of the student side and teacher side, and the input action at least wraps
Include mouse click and contact action.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811296287.1A CN109255996A (en) | 2018-11-01 | 2018-11-01 | A kind of the broadcasting optimization method and system of Online class |
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| CN201811296287.1A CN109255996A (en) | 2018-11-01 | 2018-11-01 | A kind of the broadcasting optimization method and system of Online class |
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| CN116866783A (en) * | 2023-09-04 | 2023-10-10 | 广州乐庚信息科技有限公司 | Intelligent classroom audio control system, method and storage medium |
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