CN104954730A

CN104954730A - Video playing method and device

Info

Publication number: CN104954730A
Application number: CN201510288486.8A
Authority: CN
Inventors: 杨海曜
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-05-29
Filing date: 2015-05-29
Publication date: 2015-09-30
Anticipated expiration: 2035-05-29
Also published as: CN104954730B

Abstract

The invention discloses a video playing method and device applied to a video meeting system. The video meeting system comprises at least two video acquisition systems used for acquiring video. For each of the video acquisition systems, a video selection coefficient of the video acquisition system is calculated, with the video selection coefficient being used for indicating importance of a video acquired by the video acquisition system; determining a maximum one of the video selection coefficients calculated; and playing the video acquired by the video acquisition system corresponding to the maximum video selection coefficient. Which videos acquired by the video acquisition systems to play is determined according to the video selection coefficients of the video acquisition systems, switching by a special program director is not required, and thus video playing accuracy is improved.

Description

A kind of method of displaying video and device

Technical field

The present invention relates to video display arts field, particularly a kind of method of displaying video and device.

Background technology

In television program designing, for the program adopting fixed venue, fixed light class, such as the program such as TV column, sight play, generally takes with multiple cameras.Have multi-angle, other feature of many scapes with the video after multiple cameras shooting, therefore, performance more comprehensively.

Because the video after multiple cameras shooting has above-mentioned advantage, therefore, multiple cameras in current video conferencing system, is also adopted to take, as there are three video cameras in meeting-place, be respectively used to take film used in speaker, shooting speaker speech process, and shooting auditorium, as shown in Figure 1.Carry out in process in video conference, three video cameras are all in shooting, but, the video finally presented on a display screen is not the video of whole video camera shooting, such as, when speaker's speech, what display screen presented is the video that the video camera taking speaker is taken, when spectators applaud, what display screen presented is the video that the video camera taking spectators is taken, therefore, when presenting video in video conference, need to select target video between the video of different cameras shooting, and target video is play.

At present, the mode of main employing artificial selection is selected target video and is play from the video that different cameras is taken, but, this mode needs " instructor in broadcasting personnel " to exist, " instructor in broadcasting personnel " switch as required between the video of different cameras shooting, but, owing to being the mode of artificial selection, therefore, there is the defect that accuracy is lower.

In sum, there is the lower defect of accuracy in the method that select target video carries out playing from the video of multiple cameras shooting at present.

In prior art, gather the scene of video at least two video acquisition systems under, there is the lower defect of accuracy in the method that select target video carries out playing, a kind of method of displaying video is proposed in the embodiment of the present invention, for each video acquisition system in described at least two video acquisition systems, calculate the video choosing coefficient of this video acquisition system, the importance of the video that video choosing coefficient gathers for the video acquisition system characterizing correspondence; Maximum video choosing coefficient is determined from the video choosing coefficient calculated; The video that video acquisition system corresponding for described maximum video choosing coefficient gathers is play, in this scenario, it is the video determining to play on earth which video acquisition system collection by the video choosing coefficient of video acquisition system, do not need to be switched by special " instructor in broadcasting personnel ", this improves the accuracy of the video of broadcasting.

Summary of the invention

The embodiment of the present invention provides a kind of method and device of displaying video, in order to solve the lower defect of the accuracy that exists in prior art.

The concrete technical scheme that the embodiment of the present invention provides is as follows:

First aspect, provides a kind of method of displaying video, is applied to video conferencing system, and described video conferencing system comprises at least two for gathering the video acquisition system of video, comprising:

For each video acquisition system in described at least two video acquisition systems, calculate the video choosing coefficient of this video acquisition system, the importance of the video that described video choosing coefficient gathers for the video acquisition system characterizing correspondence;

Maximum video choosing coefficient is determined from the video choosing coefficient calculated;

The video that video acquisition system corresponding for described maximum video choosing coefficient gathers is play.

In conjunction with first aspect, in the implementation that the first is possible, calculate the video choosing coefficient of this video acquisition system, comprising:

Determine at least one associated satellite equipment that this video acquisition system comprises;

Calculate the sub-video choosing coefficient that at least one associated satellite equipment described is corresponding respectively;

The sub-video choosing coefficient corresponding respectively according at least one associated satellite equipment described determines described video choosing coefficient.

In conjunction with the first possible implementation of first aspect, in the implementation that the second is possible, the sub-video choosing coefficient corresponding respectively according at least one associated satellite equipment described determines described video choosing coefficient, comprising:

Using the video choosing coefficient of sub-video choosing coefficient sum corresponding respectively at least one associated satellite equipment described as this video acquisition system.

In conjunction with the first of first aspect to the possible implementation of the second, in the implementation that the third is possible, calculate the sub-video choosing coefficient that at least one associated satellite equipment described is corresponding respectively, comprising:

For any auxiliary device at least one associated satellite equipment described, judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding.

In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, comprising:

If described any auxiliary device is the first video camera of shooting speaker image, judge described first camera acquisition to the action of described speaker as the first deliberate action time, for arranging described first video camera first is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described first video camera is corresponding;

If described any auxiliary device is the first microphone gathering described speaker's voice, when judging that keyword in described speaker's voice that described first microphone collects is as the first predetermined keyword, for arranging described first microphone second is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described first microphone is corresponding;

If described any auxiliary device is the first Pilot Operational Equipment controlled meeting-place, when judging to carry out the first predetermined registration operation to described first Pilot Operational Equipment, for arranging described first Pilot Operational Equipment the 3rd is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described first Pilot Operational Equipment is corresponding.

In conjunction with the third possible implementation of first aspect, in the 5th kind of possible implementation, judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, comprising:

If described any auxiliary device is the second video camera of photographic film, judge described second camera acquisition to the content keyword of described film as the second predetermined keyword, and/or the keyword judging to gather in described speaker's voice that first microphone of speaker collects as the 3rd predetermined keyword time, for arranging described second video camera the 4th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described second video camera is corresponding;

If described any auxiliary device is the second Pilot Operational Equipment controlled described film, when judging to carry out the second predetermined registration operation to described second Pilot Operational Equipment, for arranging described second Pilot Operational Equipment the 5th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described second Pilot Operational Equipment is corresponding.

In conjunction with the third possible implementation of first aspect, in the 6th kind of possible implementation, judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, comprising:

If described any auxiliary device is the 3rd video camera of shooting spectators, judge described 3rd camera acquisition to the action of described spectators as the second deliberate action, and/or the keyword judging to gather in described speaker's voice that first microphone of speaker collects as the 4th predetermined keyword time, for arranging described 3rd video camera the 6th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described 3rd video camera is corresponding;

If described any auxiliary device is the second microphone gathering described spectators' voice, when judging that keyword in described spectators' voice that described second microphone collects is as the 5th predetermined keyword, for arranging described second microphone the 7th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described second microphone is corresponding;

If described any auxiliary device is the 3rd Pilot Operational Equipment controlled meeting-place, when judging to carry out the 3rd predetermined registration operation to described 3rd Pilot Operational Equipment, for arranging described 3rd Pilot Operational Equipment the 8th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that described 3rd Pilot Operational Equipment is corresponding.

In conjunction with first aspect, or the first of first aspect is to the 6th kind of possible implementation, and in the 7th kind of possible implementation, first presets sub-video choosing coefficient is greater than the 4th default sub-video choosing coefficient and the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is all greater than the 5th default sub-video choosing coefficient and the 8th default sub-video choosing coefficient; Or

First presets sub-video choosing coefficient equals the 4th default sub-video choosing coefficient, and is greater than or equal to the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than or equal to the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient equals the 5th default sub-video choosing coefficient, and is greater than or equal to the 8th default sub-video choosing coefficient; Or

First presets sub-video choosing coefficient is less than the 4th default sub-video choosing coefficient, and is greater than the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is less than the 5th default sub-video choosing coefficient, and is greater than the 8th default sub-video choosing coefficient; Or

First presets sub-video choosing coefficient is greater than the 4th default sub-video choosing coefficient, and the described 4th presets sub-video choosing coefficient is greater than or equal to the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is greater than the 5th default sub-video choosing coefficient, and the described 5th presets sub-video choosing coefficient is greater than or equal to the 8th default sub-video choosing coefficient;

Described first presets the sub-video choosing coefficient of sub-video choosing coefficient set by the first video camera to shooting speaker image, described second presets the sub-video choosing coefficient of sub-video choosing coefficient set by the first microphone to the described speaker's voice of collection, described 3rd presets the sub-video choosing coefficient of sub-video choosing coefficient set by the first Pilot Operational Equipment of controlling meeting-place, described 4th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the second video camera to photographic film, described 5th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the second Pilot Operational Equipment of controlling film, described 6th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the 3rd video camera to shooting spectators, described 7th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the second microphone to the described spectators' voice of collection, described 8th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the 3rd Pilot Operational Equipment that controls meeting-place.

In conjunction with first aspect, or the first of first aspect is to the 7th kind of possible implementation, in the 8th kind of possible implementation, is play by the video that video acquisition system corresponding for described maximum video choosing coefficient gathers, comprising:

Carry out in the process play at the video that video acquisition system corresponding for described maximum video choosing coefficient is gathered, play mechanism according to repeating query and insert the video that gathers of other video acquisition systems, other video acquisition systems described for described in video acquisition system at least two video acquisition systems except video acquisition system corresponding to described maximum video choosing coefficient.

In conjunction with first aspect, or the first of first aspect is to the 8th kind of possible implementation, and in the 9th kind of possible implementation, the method also comprises:

All associated satellite equipment that at least two video acquisition systems described in judgement comprise all do not meet corresponding pre-conditioned time, the video that the video acquisition system adopting panorama visual angle to gather video gathers is play.

Second aspect, provides a kind of device of displaying video, is applied to video conferencing system, and described video conferencing system comprises at least two for gathering the video acquisition system of video, comprising:

Computing unit, for for each video acquisition system in described at least two video acquisition systems, calculate the video choosing coefficient of this video acquisition system, the importance of the video that described video choosing coefficient gathers for the video acquisition system characterizing correspondence;

Determining unit, for determining maximum video choosing coefficient from the video choosing coefficient calculated;

Broadcast unit, plays for the video gathered by video acquisition system corresponding for described maximum video choosing coefficient.

In conjunction with second aspect, in the implementation that the first is possible, described computing unit is used for:

In conjunction with the first possible implementation of second aspect, in the implementation that the second is possible, the sub-video choosing coefficient that described computing unit is corresponding respectively according at least one associated satellite equipment described determines described video choosing coefficient, is specially:

In conjunction with the first of second aspect to the possible implementation of the second, in the implementation that the third is possible, described computing unit calculates at least one associated satellite equipment described sub-video choosing coefficient corresponding respectively, is specially:

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described computing unit judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, be specially:

In conjunction with the third possible implementation of second aspect, in the 5th kind of possible implementation, described computing unit judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, be specially:

In conjunction with the third possible implementation of second aspect, in the 6th kind of possible implementation, described computing unit judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, be specially:

In conjunction with second aspect, or the first of second aspect is to the 6th kind of possible implementation, and in the 7th kind of possible implementation, first presets sub-video choosing coefficient is greater than the 4th default sub-video choosing coefficient and the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is all greater than the 5th default sub-video choosing coefficient and the 8th default sub-video choosing coefficient; Or

In conjunction with second aspect, or the first of second aspect is to the 7th kind of possible implementation, and in the 8th kind of possible implementation, described broadcast unit is used for:

In conjunction with second aspect, or the first of second aspect is to the 8th kind of possible implementation, and in the 9th kind of possible implementation, described broadcast unit is used for:

Accompanying drawing explanation

Fig. 1 is the schematic diagram of multiple cameras capture video in prior art;

Fig. 2 A is the flow chart of displaying video in the embodiment of the present invention;

Fig. 2 B is the connection diagram of video acquisition system and terminal or MCU in the embodiment of the present invention;

Fig. 2 C is the schematic diagram at panorama visual angle in the embodiment of the present invention;

Fig. 3 is the embodiment of displaying video in the embodiment of the present invention;

Fig. 4 is a kind of structural representation of the device of displaying video in the embodiment of the present invention;

Fig. 5 is the another kind of structural representation of the device of displaying video in the embodiment of the present invention.

Embodiment

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Below in conjunction with Figure of description, the embodiment of the present invention is described in detail, be to be understood that, embodiment described herein is only for instruction and explanation of the present invention, be not intended to limit the present invention, and when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.

Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.

Consult shown in Fig. 2 A, in the embodiment of the present invention, propose a kind of method of displaying video, the method is applied to video conferencing system, and video conferencing system comprises at least two for gathering the video acquisition system of video, and the flow process of the method is as follows:

Step 200: for each video acquisition system at least two video acquisition systems, calculates the video choosing coefficient of this video acquisition system;

Step 210: determine maximum video choosing coefficient from the video choosing coefficient calculated, the importance of the video that video choosing coefficient gathers for the video acquisition system characterizing correspondence;

Step 220: the video that video acquisition system corresponding for maximum video choosing coefficient gathers is play.

Such as: have three video acquisition systems, one for taking speaker, one for taking backstage scene, one for taking spectators, calculate these three video acquisition systems respectively corresponding to video choosing coefficient, as take spectators video acquisition system corresponding to video choosing coefficient maximum, then the video captured by the video acquisition system of shooting spectators is play, like this, " instructor in broadcasting personnel " are not needed manually to go to select the video captured by which video acquisition system to play, therefore, improve select target video between the video that gathers from multiple video acquisition system and carry out the accuracy play.

In the embodiment of the present invention, the mode calculating the video choosing coefficient of this video acquisition system has multiple, optionally, and can in the following way:

Calculate the sub-video choosing coefficient that at least one associated satellite equipment is corresponding respectively;

The sub-video choosing coefficient corresponding respectively according at least one associated satellite equipment determines the video choosing coefficient of this video acquisition system.

In the embodiment of the present invention, the mode according to the corresponding respectively sub-video choosing coefficient determination video choosing coefficient of at least one associated satellite equipment has multiple, optionally, and can in the following way:

Using the video choosing coefficient of sub-video choosing coefficient sum corresponding respectively at least one associated satellite equipment as this video acquisition system.

Such as: for the video acquisition system of shooting speaker, at least one the associated satellite equipment comprised is except video camera, speech cylinder can also be comprised, background music controller can also be comprised in addition, laser pen, the sub-video choosing coefficient that video camera is corresponding is sub-video choosing coefficient 1, the sub-video choosing coefficient that microphone is corresponding is sub-video choosing coefficient 2, the sub-video choosing coefficient that background music controller is corresponding is sub-video choosing coefficient 3, the sub-video choosing coefficient that laser pen is corresponding is sub-video choosing coefficient 4, video choosing coefficient then for the video acquisition system of shooting speaker is sub-video choosing coefficient 1, sub-video choosing coefficient 2, sub-video choosing coefficient 3 and sub-video choosing coefficient 4 sum.

Above-mentioned is the video acquisition system of taking speaker for example illustrates the method for the video choosing coefficient calculating video acquisition system, in actual applications, video acquisition system may be the video acquisition system of photographic film, at least one associated satellite equipment that the video acquisition system of photographic film comprises is except comprising video camera, the keyboard controlling film demonstration can also be comprised, mouse, the sub-video choosing coefficient that video camera is corresponding is sub-video choosing coefficient 5, the sub-video choosing coefficient that keyboard is corresponding is sub-video choosing coefficient 6, the sub-video choosing coefficient that mouse is corresponding is sub-video choosing coefficient 7, then the video choosing coefficient of the video acquisition system of photographic film is sub-video choosing coefficient 5, sub-video choosing coefficient 6, sub-video choosing coefficient 7 sum.

Above-mentioned is take speaker, the video acquisition system of film is the method that example illustrates the video choosing coefficient calculating video acquisition system, in actual applications, video acquisition system may be also the video acquisition system of shooting spectators, at least one associated satellite equipment that the video acquisition system taking spectators comprises is except comprising video camera, the microphone that spectators put question to can also be comprised, the enquirement device that auxiliary spectators put question to, voting machine etc., the sub-video choosing coefficient that video camera is corresponding is sub-video choosing coefficient 8, the sub-video choosing coefficient that microphone is corresponding is sub-video choosing coefficient 9, the sub-video choosing coefficient of puing question to device corresponding is sub-video choosing coefficient 10, the sub-video choosing coefficient that voting machine is corresponding is sub-video choosing coefficient 11, the video choosing coefficient then taking the video acquisition system of spectators is sub-video choosing coefficient 8, sub-video choosing coefficient 9, sub-video choosing coefficient 10 and sub-video choosing coefficient 11 sum.

Above-mentioned tell about be, using the video choosing coefficient of sub-video choosing coefficient sum corresponding respectively at least one associated satellite equipment as this video acquisition system, certainly, also other modes can be adopted, such as, by the mean value of sub-video choosing coefficient sum corresponding respectively at least one associated satellite equipment, as the video choosing coefficient of this video acquisition system.

Such as: for the video acquisition system of shooting speaker, at least one the associated satellite equipment comprised is except video camera, speech cylinder can also be comprised, background music controller can also be comprised in addition, laser pen, the sub-video choosing coefficient that video camera is corresponding is sub-video choosing coefficient 1, the sub-video choosing coefficient that microphone is corresponding is sub-video choosing coefficient 2, the sub-video choosing coefficient that background music controller is corresponding is sub-video choosing coefficient 3, the sub-video choosing coefficient that laser pen is corresponding is sub-video choosing coefficient 4, then sub-video choosing coefficient 1, sub-video choosing coefficient 2, sub-video choosing coefficient 3 and sub-video choosing coefficient 4 sum are the first video choosing coefficient sum, and using the first video choosing coefficient sum divided by the video choosing coefficient of 4 values obtained as the video acquisition system for shooting speaker.

Again such as, video acquisition system may be the video acquisition system of photographic film, at least one associated satellite equipment that the video acquisition system of photographic film comprises is except comprising video camera, the keyboard controlling film demonstration can also be comprised, mouse, the sub-video choosing coefficient that video camera is corresponding is sub-video choosing coefficient 5, the sub-video choosing coefficient that keyboard is corresponding is sub-video choosing coefficient 6, the sub-video choosing coefficient that mouse is corresponding is sub-video choosing coefficient 7, then sub-video choosing coefficient 5, sub-video choosing coefficient 6, sub-video choosing coefficient 7 sum is the second video choosing coefficient sum, by the value that the second video choosing coefficient sum obtains divided by 3, as the video choosing coefficient of the video acquisition system of photographic film.

Certainly, the account form of the video choosing coefficient of video acquisition system is not limited to above-mentioned two kinds of modes, also may have other implementations, describe in detail no longer one by one at this.

In the embodiment of the present invention, each video acquisition system can also comprise audio/video controller, and audio/video controller is the more common equipment in this area, describes in detail no longer one by one at this.

Certainly, in the application, also may there be other video acquisition systems, be not limited to above-mentioned three kinds of video acquisition systems, describe in detail no longer one by one at this.

In the embodiment of the present invention, before the video choosing coefficient calculating video acquisition system, a default sub-video choosing coefficient can be pre-set to each auxiliary device, but not the default sub-video choosing coefficient all will arranged for this auxiliary device in any case, as the sub-video choosing coefficient that this auxiliary device is corresponding, when judging that this auxiliary device is effective, by the default sub-video choosing coefficient arranging to this auxiliary device, as the sub-video choosing coefficient that this auxiliary device is corresponding, when judging that this auxiliary device is invalid, using 0 as sub-video choosing coefficient corresponding to this auxiliary device.

Wherein, when judging that whether auxiliary device is effective, whether can meet the pre-conditioned of correspondence according to auxiliary device to judge, if it is determined that auxiliary device meet corresponding pre-conditioned time, judge that auxiliary device comes into force, if auxiliary device do not meet corresponding pre-conditioned time, judge auxiliary device invalid.

That is, when calculating the respectively corresponding sub-video choosing coefficient of at least one associated satellite equipment, optionally, can in the following way:

For any auxiliary device at least one associated satellite equipment, when judging that any auxiliary device meets pre-conditioned, by the default sub-video choosing coefficient arranged for any auxiliary device, as the sub-video choosing coefficient that any auxiliary device is corresponding.

Or, if when judging that any auxiliary device does not meet pre-conditioned, using 0 as sub-video choosing coefficient corresponding to any auxiliary device.

Such as: for the video acquisition system of shooting speaker, at least one the associated satellite equipment comprised is except comprising video camera, speech cylinder can also be comprised, background music controller can also be comprised in addition, laser pen, if it is determined that when video camera comes into force, namely video camera meet corresponding pre-conditioned time, by the default sub-video choosing coefficient 1 arranged for video camera, as the sub-video choosing coefficient that video camera is corresponding, if it is determined that when video camera is invalid, namely video camera do not meet corresponding pre-conditioned time, using 0 as sub-video choosing coefficient corresponding to video camera, in like manner, if it is determined that when microphone comes into force, namely microphone meet corresponding pre-conditioned time, by the default sub-video choosing coefficient 2 arranged for microphone, as the sub-video choosing coefficient that microphone is corresponding, if it is determined that when microphone is invalid, namely microphone do not meet corresponding pre-conditioned time, using 0 as sub-video choosing coefficient corresponding to microphone, if it is determined that when background music controller comes into force, namely background music controller meet corresponding pre-conditioned time, by the default sub-video choosing coefficient 3 arranged for background music controller, the sub-video choosing coefficient that music controller is corresponding as a setting, if it is determined that when background music controller is invalid, namely background music controller do not meet corresponding pre-conditioned time, by the 0 sub-video choosing coefficient that music controller is corresponding as a setting, if it is determined that when laser pen comes into force, namely laser pen meet corresponding pre-conditioned time, by the default sub-video choosing coefficient 4 arranged for laser pen, as the sub-video choosing coefficient that laser pen is corresponding, if it is determined that when laser pen is invalid, namely laser pen do not meet corresponding pre-conditioned time, using 0 as sub-video choosing coefficient corresponding to laser pen.

In the embodiment of the present invention, judge any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient for any auxiliary device setting, during as the sub-video choosing coefficient that any auxiliary device is corresponding, optionally, can also in the following way:

If any auxiliary device is first video camera of shooting speaker, judge the first camera acquisition to the action of speaker as the first deliberate action time, for arranging the first video camera first is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the first video camera is corresponding; If judge the first camera acquisition to the action of speaker not as the first deliberate action time, using 0 as sub-video choosing coefficient corresponding to the first video camera;

If any auxiliary device is the first microphone gathering speaker's voice, when judging that keyword in speaker's voice that the first microphone collects is as the first predetermined keyword, for arranging the first microphone second is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the first microphone is corresponding; If when the keyword in judging speaker's voice that the first microphone collects is not as the first predetermined keyword, using 0 as sub-video choosing coefficient corresponding to the first microphone;

If any auxiliary device is the first Pilot Operational Equipment controlled meeting-place, when judging to carry out the first predetermined registration operation to the first Pilot Operational Equipment, for arranging the first Pilot Operational Equipment the 3rd is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the first Pilot Operational Equipment is corresponding; If judge when not carrying out the first predetermined registration operation to the first Pilot Operational Equipment, using 0 as sub-video choosing coefficient corresponding to the first Pilot Operational Equipment.

It should be noted that, judge the first camera acquisition to the action of speaker as the first deliberate action time, just can determine that the first video camera comes into force, that is, judge the first video camera whether come into force specifically can by judge the first camera acquisition to the action of speaker whether be that this technological means of the first deliberate action realizes, when judge the first camera acquisition to the action of speaker as the first deliberate action time, just can determine that the first video camera comes into force, when judge the first camera acquisition to the action of speaker not as the first deliberate action time, just can determine that the first video camera is invalid.

Such as, the video acquisition system of shooting speaker comprises the first video camera and the first microphone, when the first video camera photographs first deliberate action such as speaker stands up or waves, can think that the first video camera is effective, keyword in the voice that the first microphone collects comprises " today, we, everybody, together, emphatically, welcome (someone), please applaud, salute " etc. at least one first keyword time, can think that the first microphone is effective.

Again such as, first camera acquisition of shooting speaker is waved to speaker, stand up, the action such as to shake the head, if and these actions are the first deliberate action, now, determine that the first video camera taking speaker is effective, for arranging this video camera first is preset sub-video choosing coefficient, as the sub-video choosing coefficient that first video camera of shooting speaker is corresponding, if the pre-set first default sub-video choosing coefficient is 3, the sub-video choosing coefficient then now taking first video camera of speaker corresponding is 3, if the action that first camera acquisition of shooting speaker drinks water to speaker, and this action is not the first deliberate action, now, determine that the first video camera taking speaker is invalid, using 0 as the sub-video choosing coefficient corresponding to the first video camera of shooting speaker.

In like manner, when judging that keyword in speaker's voice that the first microphone collects is as the first predetermined keyword, just can determine that the first microphone comes into force, that is, judging whether the first microphone comes into force specifically can by judging whether the keyword in speaker's voice that the first microphone collects is that this technological means of the first predetermined keyword realizes, when judging the keyword in speaker's voice that the first microphone collects as the first predetermined keyword, just can determine that the first microphone comes into force, when judging the keyword in speaker's voice that the first microphone collects not as the first predetermined keyword, just can determine that the first microphone is invalid.

In like manner, when judging to carry out the first predetermined registration operation to the first Pilot Operational Equipment, just can determine that the first Pilot Operational Equipment comes into force, that is, judging whether the first Pilot Operational Equipment comes into force can by judging that whether carrying out this technological means of the first predetermined registration operation to the first Pilot Operational Equipment realizes, when judging to carry out the first predetermined registration operation to the first Pilot Operational Equipment, just can determine that the first Pilot Operational Equipment comes into force, when judging not carry out the first predetermined registration operation to the first Pilot Operational Equipment, just can determine that the first Pilot Operational Equipment is invalid.

It is above-mentioned that what tell about is video acquisition system for speaker, calculate the mode of the sub-video choosing coefficient of auxiliary device, tell about the mode of the sub-video choosing coefficient of the video acquisition system calculating auxiliary device for film below, implementation procedure can process as follows: judge any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for any auxiliary device, during as the sub-video choosing coefficient that any auxiliary device is corresponding, optionally, also can in the following way:

If any auxiliary device is the second video camera of photographic film, judge the second camera acquisition to the content keyword of film as the second predetermined keyword, and/or the keyword judging to gather in speaker's voice that first microphone of speaker collects as the 3rd predetermined keyword time, for arranging the second video camera the 4th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the second video camera is corresponding;

If any auxiliary device is the second Pilot Operational Equipment controlled film, when judging to carry out the second predetermined registration operation to the second Pilot Operational Equipment, for arranging the second Pilot Operational Equipment the 5th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the second Pilot Operational Equipment is corresponding.

Such as, for the second video camera of photographic film, during as there is second predetermined keyword such as " beginning " " end " in film content, now, determine that the second video camera shooting is effective, for arranging the second video camera the 4th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the second video camera is corresponding; If when there is not the second predetermined keyword in film content, now, determine that the second video camera shooting is invalid, using 0 as sub-video choosing coefficient corresponding to the second video camera.

In the embodiment of the present invention, second Pilot Operational Equipment can comprise the operating equipment such as keyboard, mouse, page turner controlled film, as, when second Pilot Operational Equipment is the keyboard controlled film, when judging to carry out the second predetermined registration operation to keyboard, for arranging keyboard the 5th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that keyboard is corresponding; When judging not carry out the second predetermined registration operation to keyboard, using 0 as sub-video choosing coefficient corresponding to keyboard.

It should be noted that, judge the second camera acquisition to the content keyword of film as the second predetermined keyword, and/or the keyword judging to gather in speaker's voice that first microphone of speaker collects as the 3rd predetermined keyword time, just can determine that the second video camera comes into force, that is, judge whether the second video camera comes into force specifically to be realized by following two technological means: judge the second camera acquisition to the content keyword of film whether be the second predetermined keyword, and/or judge whether the keyword in speaker's voice that the first microphone gathering speaker collects is the 3rd predetermined keyword, when judge the second camera acquisition to the content keyword of film as the second predetermined keyword, and/or the keyword judging to gather in speaker's voice that first microphone of speaker collects as the 3rd predetermined keyword time, just can determine that the second video camera comes into force, when judge the second camera acquisition to the content keyword of film not as the second predetermined keyword, and the keyword judging to gather in speaker's voice that first microphone of speaker collects not as the 3rd predetermined keyword time, just can determine that the second video camera is invalid.

In like manner, when judging to carry out the second predetermined registration operation to the second Pilot Operational Equipment, determine that the second Pilot Operational Equipment comes into force, that is, judging whether the second Pilot Operational Equipment comes into force specifically can by judging that whether carrying out this technological means of the second predetermined registration operation to the second Pilot Operational Equipment realizes, when judging to carry out the second predetermined registration operation to the second Pilot Operational Equipment, determine that the second Pilot Operational Equipment comes into force, when judging not carry out the second predetermined registration operation to the second Pilot Operational Equipment, determine that the second Pilot Operational Equipment is invalid.In the embodiment of the present invention, when judging that keyword in speaker's voice that the first microphone collects is as the first predetermined keyword, for arranging the first microphone second is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the first microphone is corresponding, when judging to gather keyword in speaker's voice that first microphone of speaker collects as the 3rd predetermined keyword, for arranging the second video camera the 4th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the second video camera is corresponding, that is, the foundation that namely whether the voice of the speaker that the first microphone collects can come into force as judgement first microphone, also can as the second video camera whether come into force based on, when judging the keyword in speaker's voice that the first microphone collects as the first predetermined keyword, determine that the first microphone is effective, when judging to gather keyword in speaker's voice that first microphone of speaker collects as the 3rd predetermined keyword, determine that the second video camera is effective.

Such as: when the voice that the first microphone of voice gathering speaker collects comprise " today, we, everybody, together, emphatically, welcome (someone), please applaud, salute, please put question to, I says, do not hear, please repeat, also need to continue thinking, etc. study below " etc. at least one first keyword time, now, the voice collected according to the first microphone can determine that the first microphone comes into force; The voice collected when the first microphone of voice gathering speaker comprise " please see, flow chart, picture, film, here, show, next step, on screen, demonstration ", in at least one the 3rd predetermined keyword time, now, the voice collected according to the first microphone can determine that the second video camera is effective.

It is above-mentioned that what tell about is video acquisition system for speaker, film, determine that the auxiliary device included by this video acquisition system arranges the mode of sub-video choosing coefficient, in actual applications, also may there is the video acquisition system for spectators, tell about the mode for the video acquisition system calculating associated satellite equipment of spectators sub-video choosing coefficient corresponding respectively below:

That is, judge any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient for any auxiliary device setting, during as the sub-video choosing coefficient that any auxiliary device is corresponding, optionally, can in the following way:

If any auxiliary device is the 3rd video camera of shooting spectators, judge the 3rd camera acquisition to the action of spectators as the second deliberate action, and/or the keyword judging to gather in speaker's voice that first microphone of speaker collects as the 4th predetermined keyword time, for arranging the 3rd video camera the 6th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the 3rd video camera is corresponding; If judge the 3rd camera acquisition to the action of spectators not as the second deliberate action, and the keyword judging to gather in speaker's voice that first microphone of speaker collects not as the 4th predetermined keyword time, using 0 as sub-video choosing coefficient corresponding to the 3rd video camera;

If any auxiliary device is the second microphone gathering spectators' voice, when judging that keyword in spectators' voice that the second microphone collects is as the 5th predetermined keyword, for arranging the second microphone the 7th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the second microphone is corresponding; When judging that keyword in spectators' voice that the second microphone collects is not as the 5th predetermined keyword, using 0 as sub-video choosing coefficient corresponding to the second microphone;

If any auxiliary device is the 3rd Pilot Operational Equipment controlled meeting-place, when judging to carry out the 3rd predetermined registration operation to the 3rd Pilot Operational Equipment, for arranging the 3rd Pilot Operational Equipment the 8th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the 3rd Pilot Operational Equipment is corresponding; Judge when the 3rd predetermined registration operation is not carried out to the 3rd Pilot Operational Equipment, using 0 as sub-video choosing coefficient corresponding to the 3rd Pilot Operational Equipment.

It should be noted that, judge the 3rd camera acquisition to the action of spectators as the second deliberate action, and/or the keyword judging to gather in speaker's voice that first microphone of speaker collects as the 4th predetermined keyword time, just can determine that the 3rd video camera comes into force, namely judge whether the 3rd video camera comes into force, can by judge as follows the 3rd camera acquisition to the action of spectators whether be the second deliberate action, and/or judge whether the keyword in speaker's voice that the first microphone gathering speaker collects is that these two technological means of the 4th predetermined keyword realize, if it is determined that the 3rd camera acquisition to the action of spectators be the second deliberate action, and/or the keyword judging to gather in speaker's voice that first microphone of speaker collects as the 4th predetermined keyword time, just can determine that the 3rd video camera comes into force, if it is determined that the 3rd camera acquisition to the action of spectators be not the second deliberate action, and the keyword judging to gather in speaker's voice that first microphone of speaker collects not as the 4th predetermined keyword time, just can determine that the 3rd video camera is invalid.

In like manner, when judging that keyword in spectators' voice that the second microphone collects is as the 5th predetermined keyword, can determine that the second microphone comes into force, that is, judging whether the second microphone comes into force can by judging whether the keyword in spectators' voice that the second microphone collects is that the 5th this technological means of predetermined keyword realizes, if it is determined that when the keyword in spectators' voice that the second microphone collects is the 5th predetermined keyword, can determine that the second microphone comes into force, if it is determined that when the keyword in spectators' voice that the second microphone collects is not the 5th predetermined keyword, can determine that the second microphone is invalid.

In like manner, when judging to carry out the 3rd predetermined registration operation to the 3rd Pilot Operational Equipment, just can determine that the 3rd Pilot Operational Equipment is effective, that is, judge that whether the 3rd Pilot Operational Equipment is effective, specifically can by judging that whether carrying out the 3rd this technological means of predetermined registration operation to the 3rd Pilot Operational Equipment realizes, if it is determined that when carrying out the 3rd predetermined registration operation to the 3rd Pilot Operational Equipment, determine that the 3rd Pilot Operational Equipment is effective, if it is determined that when not carrying out the 3rd predetermined registration operation to the 3rd Pilot Operational Equipment, determine that the 3rd Pilot Operational Equipment is invalid.

Wherein, optionally, the second deliberate action can for " raising one's hand ", " All stand ", and the 5th predetermined keyword can be " may I ask ", " please answer ", " why ".

Such as, when comprising the video contents such as action of raising one's hand, loud action (applaud, cheer), large area motion (All stand) when the video that the video acquisition system for spectators collects, can determine that the 3rd video camera is effective.

In the embodiment of the present invention, optionally, the first deliberate action is the action needing to be concerned for characterizing speaker, the word that the first predetermined keyword needs to be concerned for characterizing speaker, the operation that the first predetermined registration operation needs to be concerned for characterizing speaker.

In like manner, the second predetermined keyword and the 3rd predetermined keyword are all for characterizing the word that film needs to be concerned, the operation that the second predetermined registration operation needs to be concerned for characterizing film.

In like manner, the second deliberate action is the action needing to be concerned for characterizing spectators, and the 4th predetermined keyword and the 5th predetermined keyword are all for characterizing the word that spectators need to be concerned, the operation that the 3rd predetermined registration operation needs to be concerned for characterizing spectators.

In the embodiment of the present invention, when corresponding default sub-video choosing coefficient is arranged to each auxiliary device, can according to the character of video conference, such as, during for single report meeting, the default sub-video choosing coefficient set by each auxiliary device comprise the video conference acquisition system of shooting speaker can for maximum; If during for communication and discussion meeting, default sub-video choosing coefficient set by each auxiliary device comprise the video acquisition system of shooting speaker, can be identical with the default sub-video choosing coefficient set by each auxiliary device comprised the video acquisition system of photographic film.

In the embodiment of the present invention, in the video conference of lecture, the broadcasting time of the video that the video acquisition system gathering film gathers, the broadcasting time of the video that the video acquisition system that can be greater than collection speaker gathers, the broadcasting time of the video that the video acquisition system gathering speaker gathers, the broadcasting time of the video that the video acquisition system that can be greater than collection spectators gathers, can be realized by the default sub-video choosing coefficient set by each auxiliary device, such as, default sub-video choosing coefficient set by each auxiliary device comprise the video conference acquisition system of photographic film is set to maximum, default sub-video choosing coefficient set by each auxiliary device video conference acquisition system of shooting speaker comprised again is set to, the default sub-video choosing coefficient set by each auxiliary device that the video conference acquisition system being greater than shooting spectators comprises.

In the video conference of question and answer, the broadcasting time of the video that the video acquisition system gathering speaker gathers, the broadcasting time of the video that the video acquisition system that can be greater than collection film gathers, the broadcasting time of the video that the video acquisition system gathering speaker gathers, the broadcasting time of the video that the video acquisition system that can be greater than collection spectators gathers, can be realized by the default sub-video choosing coefficient set by each auxiliary device, such as, default sub-video choosing coefficient set by each auxiliary device comprise the video conference acquisition system of shooting speaker is set to maximum, default sub-video choosing coefficient set by each auxiliary device video conference acquisition system of photographic film comprised again is set to, the default sub-video choosing coefficient set by each auxiliary device that the video conference acquisition system being greater than shooting spectators comprises, or, also can be, default sub-video choosing coefficient set by each auxiliary device comprise the video conference acquisition system of shooting speaker is set to maximum, default sub-video choosing coefficient set by each auxiliary device video conference acquisition system of shooting spectators comprised again is set to, default sub-video choosing coefficient set by each auxiliary device that the video conference acquisition system being greater than photographic film comprises.

That is, if video conference is the form of single report, first presets sub-video choosing coefficient is all greater than the 4th default sub-video choosing coefficient and the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is all greater than the 5th default sub-video choosing coefficient and the 8th default sub-video choosing coefficient;

If video conference is the form of communication and discussion meeting, first presets sub-video choosing coefficient equals the 4th default sub-video choosing coefficient, and is greater than or equal to the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than or equal to the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient equals the 5th default sub-video choosing coefficient, and is greater than or equal to the 8th default sub-video choosing coefficient;

If described video conference is the form of lecture meeting, first presets sub-video choosing coefficient is less than the 4th default sub-video choosing coefficient, and is greater than the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is less than the 5th default sub-video choosing coefficient, and is greater than the 8th default sub-video choosing coefficient;

If described video conference is the form of question and answer meeting, first presets sub-video choosing coefficient is greater than the 4th default sub-video choosing coefficient, and the described 4th presets sub-video choosing coefficient is greater than or equal to the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is greater than the 5th default sub-video choosing coefficient, and the described 5th presets sub-video choosing coefficient is greater than or equal to the 8th default sub-video choosing coefficient;

First presets the sub-video choosing coefficient of sub-video choosing coefficient set by the first video camera to shooting speaker image, second presets the sub-video choosing coefficient of sub-video choosing coefficient set by the first microphone to collection speaker voice, 3rd presets the sub-video choosing coefficient of sub-video choosing coefficient set by the first Pilot Operational Equipment of controlling meeting-place, 4th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the second video camera to photographic film, 5th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the second Pilot Operational Equipment of controlling film, 6th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the 3rd video camera to shooting spectators, 7th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the second microphone to collection spectators voice, 8th presets the sub-video choosing coefficient of sub-video choosing coefficient set by the 3rd Pilot Operational Equipment that controls meeting-place.

Such as, during single report, first default sub-video choosing coefficient can be greater than the 4th default sub-video choosing coefficient, also can be greater than the 6th default sub-video choosing coefficient, and the 3rd presets sub-video choosing coefficient can be greater than the 5th default sub-video choosing coefficient, also can be greater than the 8th default sub-video choosing coefficient; During communication and discussion meeting, first default sub-video choosing coefficient can equal the 4th default sub-video choosing coefficient, can be greater than the 6th default sub-video choosing coefficient, and the 3rd presets sub-video choosing coefficient can equal the 5th default sub-video choosing coefficient, can be greater than the 8th default sub-video choosing coefficient.

Such as, if video conference is the form of single report, first preset sub-video choosing coefficient is set to 10, the 4th preset sub-video choosing coefficient be set to 5 and the 6th preset sub-video choosing coefficient be set to 4; Second presets sub-video choosing coefficient is set to 5, and the 7th presets sub-video choosing coefficient is set to 4; 3rd presets sub-video choosing coefficient is set to 7, and the 5th presets sub-video choosing coefficient is set to 5, and the 8th presets sub-video choosing coefficient is set to 5.

Again such as, if video conference is the form of communication and discussion meeting, first presets sub-video choosing coefficient is set to 7, and the 4th presets sub-video choosing coefficient is also set to 7, and the 6th presets sub-video choosing coefficient can be set to 7 or 5; Second presets sub-video choosing coefficient is set to 6, and the 7th presets sub-video choosing coefficient is set to 6 or 5; 3rd presets sub-video choosing coefficient is set to 6, and the 5th presets sub-video choosing coefficient is set to 6, and the 8th presets sub-video choosing coefficient is set to 6 or 5.

Again such as, if video conference is the form of lecture meeting, first presets sub-video choosing coefficient is set to 4, and the 4th presets sub-video choosing coefficient is set to 7, and the 6th presets sub-video choosing coefficient is set to 3; Second presets sub-video choosing coefficient is set to 7, and the 7th presets sub-video choosing coefficient is set to 4; 3rd presets sub-video choosing coefficient is set to 6, and the 5th presets sub-video choosing coefficient is set to 7, and the 8th presets sub-video choosing coefficient is set to 3.

If video conference is the form of question and answer meeting, first presets sub-video choosing coefficient is set to 7, and the 4th presets sub-video choosing coefficient is set to 5, and the 4th presets sub-video choosing coefficient is set to 5, and the 6th presets sub-video choosing coefficient is set to 5 or 4; Second presets sub-video choosing coefficient is set to 5, and the 7th presets sub-video choosing coefficient is set to 4; 3rd presets sub-video choosing coefficient is set to 6, and the 5th presets sub-video choosing coefficient is set to 5, and the 8th presets sub-video choosing coefficient is set to 3.

In the embodiment of the present invention, multiple video acquisition system can be positioned at a meeting-place, also multiple meeting-place can be arranged in, when being positioned at a meeting-place, the executive agent of step 200-220 can be the terminal in this meeting-place, when being positioned at multiple meeting-place, the executive agent of step 200-220 can be MCU (Multipoint Control Unit, multipoint control unit), the connection of video acquisition system and terminal or MCU can be as shown in Figure 2 B, when the executive agent of step 200-220 be terminal or MCU time, video choosing coefficient processing module shown in Fig. 2 B can be arranged in terminal or MCU, certainly, when the executive agent of step 200-220 be not terminal or neither MCU time, video choosing coefficient processing module shown in Fig. 2 B can be arranged in other executive agent embodiment of the present invention outside terminal or MCU, further, the default sub-video choosing coefficient corresponding to auxiliary device can also be adjusted, such as, using the product of default sub-video choosing coefficient * dynamic conditioning coefficient * scene predetermined coefficient as the final default sub-video choosing coefficient corresponding to auxiliary device.

Such as, in the process that spectators put question to, someone swarms into dais, now, can increase the first default sub-video choosing coefficient that first video camera of shooting speaker is corresponding.

Again such as, in the process of speaker's speech, if there are spectators to raise one's hand to put question to, now, the 6th default sub-video choosing coefficient that the 3rd video camera of shooting spectators is corresponding can be increased.

In the embodiment of the present invention, in video switch, the defect that the video gathered for avoiding some video acquisition system is never play, poll can be set and play mechanism, as set video camera poll time, carry out in the process play at the video that video acquisition system corresponding for maximum video choosing coefficient is gathered, play mechanism according to repeating query and insert the video that gathers of other video acquisition systems, other video acquisition systems are the video acquisition system at least two video acquisition systems except video acquisition system corresponding to maximum video choosing coefficient.

Such as, every three minutes, the video acquisition system for speaker, the video acquisition system for film, video acquisition system video playback time of each 3 seconds for spectators is given respectively.

In the embodiment of the present invention, all associated satellite equipment that at least two video acquisition systems described in judgement comprise all do not meet corresponding pre-conditioned time, the video that the video acquisition system adopting panorama visual angle to gather video gathers is play.

Such as, when speaker long-term not or inertia, or when without speaker, video playback switches quite mixed and disorderly, No. 1 video camera within such as first second, to be switched, within second second, be switched to video that No. 2 video acquisition systems gather again, when within the 3rd second, being switched to video that No. 3 video acquisition systems gather again, now, the panorama visual angle can enabling " God visual angle " is come the area video collection of whole meeting-place, the video that the video acquisition system adopting panorama visual angle to gather video gathers is play, as shown in Figure 2 C.

As shown in Figure 3, in order to understand the embodiment of the present invention better, below provide embody rule scene, for the process of displaying video, carry out citing to describe, this application scenarios comprises shooting first video acquisition system of speaker, the second video acquisition system of photographic film and takes the 3rd video acquisition system of spectators:

Step 300: when speaker starts speech time, the video choosing coefficient of the first video acquisition system now calculated is maximum, then play the video that the first video acquisition system gathers;

Step 310: in the process of speaker's speech, start: time " please see film ", now, the video choosing coefficient of the second video acquisition system of the photographic film calculated is maximum, then play the video that the second video acquisition system gathers;

After this step, speaker says while turn over the actions such as film page, then image unanimously maintains the video acquisition system playing photographic film, if polling timer reaches Preset Time, such as every three minutes, give speaker, film, spectators' camera lens of each 3 seconds respectively, then play video each 3 seconds that different video acquisition system gathers respectively, but, if spectators put question to, perform following steps:

Step 320: the video choosing coefficient of the 3rd video acquisition system of the shooting spectators calculated is maximum, then play the video that the 3rd video acquisition system gathers;

Step 330: spectators put question to complete, speaker starts to answer, or put question to and interrupted by speaker, the video choosing coefficient of first video acquisition system of the shooting speaker calculated is maximum, then return the video that broadcasting first video acquisition system gathers.

In the process continuing the video that broadcasting first video acquisition system gathers, if speaker prepares for certain problem, stir film, or keyboard typing, the video choosing coefficient of the second video acquisition system of the photographic film then now calculated is maximum, the video that the video acquisition system being switched to broadcasting photographic film gathers.

In sum, a kind of method of displaying video is proposed in the embodiment of the present invention, for each video acquisition system in described at least two video acquisition systems, calculate the video choosing coefficient of this video acquisition system, the importance of the video that video choosing coefficient gathers for the video acquisition system characterizing correspondence; Maximum video choosing coefficient is determined from the video choosing coefficient calculated; The video that video acquisition system corresponding for described maximum video choosing coefficient gathers is play, in this scenario, it is the video determining to play on earth which video acquisition system collection by the video choosing coefficient of video acquisition system, do not need to be switched by special " instructor in broadcasting personnel ", this improves the accuracy of the video of broadcasting.

Consult shown in Fig. 4, in the embodiment of the present invention, propose a kind of device of displaying video, be applied to video conferencing system, video conferencing system comprises at least two for gathering the video acquisition system of video, and this device comprises computing unit 40, determining unit 41 and broadcast unit 42:

Computing unit 40, for for each video acquisition system at least two video acquisition systems, calculates the video choosing coefficient of this video acquisition system, the importance of the video that video choosing coefficient gathers for the video acquisition system characterizing correspondence;

Determining unit 41, for determining maximum video choosing coefficient from the video choosing coefficient calculated;

Broadcast unit 42, plays for the video gathered by video acquisition system corresponding for maximum video choosing coefficient.

In the embodiment of the present invention, further, computing unit 40 for:

The sub-video choosing coefficient determination video choosing coefficient corresponding respectively according at least one associated satellite equipment.

In the embodiment of the present invention, optionally, the sub-video choosing coefficient determination video choosing coefficient that computing unit 40 is corresponding respectively according at least one associated satellite equipment, is specially:

In the embodiment of the present invention, optionally, computing unit 40 calculates at least one associated satellite equipment sub-video choosing coefficient corresponding respectively, is specially:

For any auxiliary device at least one associated satellite equipment, judge any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for any auxiliary device, as the sub-video choosing coefficient that any auxiliary device is corresponding.

In the embodiment of the present invention, optionally, computing unit 40 judge any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient for any auxiliary device setting, as the sub-video choosing coefficient that any auxiliary device is corresponding, be specially:

If any auxiliary device is the first video camera of shooting speaker image, judge the first camera acquisition to the action of speaker as the first deliberate action time, for arranging the first video camera first is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the first video camera is corresponding;

If any auxiliary device is the first microphone gathering speaker's voice, when judging that keyword in speaker's voice that the first microphone collects is as the first predetermined keyword, for arranging the first microphone second is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the first microphone is corresponding;

If any auxiliary device is the first Pilot Operational Equipment controlled meeting-place, when judging to carry out the first predetermined registration operation to the first Pilot Operational Equipment, for arranging the first Pilot Operational Equipment the 3rd is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the first Pilot Operational Equipment is corresponding.

If any auxiliary device is the 3rd video camera of shooting spectators, judge the 3rd camera acquisition to the action of spectators as the second deliberate action, and/or the keyword judging to gather in speaker's voice that first microphone of speaker collects as the 4th predetermined keyword time, for arranging the 3rd video camera the 6th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the 3rd video camera is corresponding;

If any auxiliary device is the second microphone gathering spectators' voice, when judging that keyword in spectators' voice that the second microphone collects is as the 5th predetermined keyword, for arranging the second microphone the 7th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the second microphone is corresponding;

If any auxiliary device is the 3rd Pilot Operational Equipment controlled meeting-place, when judging to carry out the 3rd predetermined registration operation to the 3rd Pilot Operational Equipment, for arranging the 3rd Pilot Operational Equipment the 8th is preset sub-video choosing coefficient, as the sub-video choosing coefficient that the 3rd Pilot Operational Equipment is corresponding.

In the embodiment of the present invention, optionally, the first default sub-video choosing coefficient is greater than the 4th default sub-video choosing coefficient and the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is all greater than the 5th default sub-video choosing coefficient and the 8th default sub-video choosing coefficient; Or

First presets sub-video choosing coefficient is greater than the 4th default sub-video choosing coefficient, and the 4th presets sub-video choosing coefficient is greater than or equal to the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is greater than the 5th default sub-video choosing coefficient, and the 5th presets sub-video choosing coefficient is greater than or equal to the 8th default sub-video choosing coefficient;

In the embodiment of the present invention, optionally, broadcast unit 42 for:

Carry out in the process play at the video that video acquisition system corresponding for maximum video choosing coefficient is gathered, play mechanism according to repeating query and insert the video that gathers of other video acquisition systems, other video acquisition systems are the video acquisition system at least two video acquisition systems except video acquisition system corresponding to maximum video choosing coefficient.

In the embodiment of the present invention, optionally, broadcast unit 42 for:

Judge all associated satellite equipment that at least two video acquisition systems comprise all do not meet corresponding pre-conditioned time, the video that the video acquisition system adopting panorama visual angle to gather video gathers is play.

As shown in Figure 5, be the another kind of structural representation of the device of deployment controller in the SDN that the embodiment of the present invention provides, comprise at least one processor 501, communication bus 502, memory 503 and at least one communication interface 504.

Wherein, communication bus 502 is for the connection that realizes between said modules and communicate, and communication interface 504 is for being connected with external equipment and communicating.

Wherein, memory 503 is for storing executable program code, and processor 501 passes through to perform these program codes, for:

For each video acquisition system at least two video acquisition systems, calculate the video choosing coefficient of this video acquisition system, the importance of the video that video choosing coefficient gathers for the video acquisition system characterizing correspondence;

The video that video acquisition system corresponding for maximum video choosing coefficient gathers is play.

In the embodiment of the present invention, optionally, when processor 501 calculates the video choosing coefficient of this video acquisition system, can in the following way:

In the embodiment of the present invention, optionally, the sub-video choosing coefficient determination video choosing coefficient that processor 501 is respectively corresponding according at least one associated satellite equipment, can in the following way:

In the embodiment of the present invention, optionally, processor 501 calculates the respectively corresponding sub-video choosing coefficient of at least one associated satellite equipment, optionally, and can in the following way:

In the embodiment of the present invention, optionally, processor 501 judge any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient for any auxiliary device setting, as the sub-video choosing coefficient that any auxiliary device is corresponding, Ke Yiwei:

In the embodiment of the present invention, optionally, when the video that video acquisition system corresponding for maximum video choosing coefficient gathers is play by processor 501, Ke Yiwei:

In the embodiment of the present invention, further, processor 501 also for:

Judge all associated satellite equipment that at least two video acquisition systems comprise all do not meet corresponding pre-conditioned time, the video that the video acquisition system adopting panorama visual angle to gather video gathers is play.The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step of the function realized in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. a method for displaying video, is applied to video conferencing system, and described video conferencing system comprises at least two and it is characterized in that for gathering the video acquisition system of video, comprising:

2. the method for claim 1, is characterized in that, calculates the video choosing coefficient of this video acquisition system, comprising:

3. method as claimed in claim 2, is characterized in that, the sub-video choosing coefficient corresponding respectively according at least one associated satellite equipment described determines described video choosing coefficient, comprising:

4. method as claimed in claim 2 or claim 3, is characterized in that, calculates the sub-video choosing coefficient that at least one associated satellite equipment described is corresponding respectively, comprising:

5. method as claimed in claim 4, it is characterized in that, judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient for described any auxiliary device setting, as the sub-video choosing coefficient that described any auxiliary device is corresponding, comprising:

6. method as claimed in claim 4, it is characterized in that, judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient for described any auxiliary device setting, as the sub-video choosing coefficient that described any auxiliary device is corresponding, comprising:

7. method as claimed in claim 4, it is characterized in that, judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient for described any auxiliary device setting, as the sub-video choosing coefficient that described any auxiliary device is corresponding, comprising:

8. the method as described in any one of claim 1-7, is characterized in that, first presets sub-video choosing coefficient is greater than the 4th default sub-video choosing coefficient and the 6th default sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is all greater than the 5th default sub-video choosing coefficient and the 8th default sub-video choosing coefficient; Or

9. the method as described in any one of claim 1-8, is characterized in that, is play by the video that video acquisition system corresponding for described maximum video choosing coefficient gathers, comprising:

10. the method as described in any one of claim 1-9, is characterized in that, the method also comprises:

The device of 11. 1 kinds of displaying videos, is applied to video conferencing system, and described video conferencing system comprises at least two and it is characterized in that for gathering the video acquisition system of video, comprising:

12. devices as claimed in claim 11, it is characterized in that, described computing unit is used for:

13. devices as claimed in claim 12, is characterized in that, the sub-video choosing coefficient that described computing unit is corresponding respectively according at least one associated satellite equipment described determines described video choosing coefficient, is specially:

14. devices as described in claim 12 or 13, is characterized in that, described computing unit calculates at least one associated satellite equipment described sub-video choosing coefficient corresponding respectively, is specially:

15. devices as claimed in claim 14, it is characterized in that, described computing unit judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, be specially:

16. devices as claimed in claim 14, it is characterized in that, described computing unit judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, be specially:

17. devices as claimed in claim 14, it is characterized in that, described computing unit judge described any auxiliary device meet corresponding pre-conditioned time, by the default sub-video choosing coefficient arranged for described any auxiliary device, as the sub-video choosing coefficient that described any auxiliary device is corresponding, be specially:

18. devices as described in any one of claim 11-17, is characterized in that, first presets sub-video choosing coefficient is greater than the 4th and presets sub-video choosing coefficient and the 6th and preset sub-video choosing coefficient; Second presets sub-video choosing coefficient is greater than the 7th default sub-video choosing coefficient; 3rd presets sub-video choosing coefficient is all greater than the 5th default sub-video choosing coefficient and the 8th default sub-video choosing coefficient; Or

19. devices as described in any one of claim 11-18, it is characterized in that, described broadcast unit is used for:

20. devices as described in any one of claim 11-19, it is characterized in that, described broadcast unit is used for: