CN105592288A - Method for realizing automatic adjustment of meeting place images, and multipoint control unit - Google Patents
Method for realizing automatic adjustment of meeting place images, and multipoint control unit Download PDFInfo
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- CN105592288A CN105592288A CN201410624142.5A CN201410624142A CN105592288A CN 105592288 A CN105592288 A CN 105592288A CN 201410624142 A CN201410624142 A CN 201410624142A CN 105592288 A CN105592288 A CN 105592288A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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Abstract
The embodiments of the invention provide a method for realizing automatic adjustment of meeting place images. The method comprises the following steps: receiving video image data of each meeting place, and respectively performing decoding processing on the video image data of each meeting place to obtain the meeting place images; performing mode identification processing on each meeting place image to obtain an image proportion mean value of an object in each meeting place image; and according to a first difference between the image proportion mean value of the object in each meeting place image and a first preset meeting place image proportion value, performing primary adjustment on the focal length of a video acquisition device in real time so as to dynamically adjust the image proportion mean value of the object in each meeting place image. The embodiments of the invention also provide a multipoint control unit for realizing automatic adjustment of meeting place images.
Description
Technical field
The present invention relates to multimedia communication technology, relate in particular to one and realize the self-adjusting method of meeting-place pictureAnd multipoint control unit (Multi-pointControlUnit, MCU).
Background technology
At present, in video conferencing system, due to the number of object in each meeting-place, position, meeting room clothOffice, especially video capture device are as the layout difference of video camera, and the video collecting in each meeting place is drawnFace varies, and in the picture of each meeting-place, the aspect ratio value of object cannot be adjusted automatically; And, manyIn the demonstration of individual meeting-place picture, in the picture of each meeting-place, between the aspect ratio value of object, differ greatly, make wholeThe visual effect of individual video pictures is poor. In addition, for each meeting-place picture, in the picture of each meeting-placeObject is not wished the aspect ratio value maximum of object in the picture of each meeting-place, but wishes each meeting-place pictureThe aspect ratio value of middle object can be automatically controlled, thereby can come really according to the demonstration situation of video picturesPhysical location and the size of object in the picture of fixed each meeting-place. For the above-mentioned feelings that exist in video conferencing systemCondition, video conference participant may need manually to go to control video capture device adjustment.
But in actual video conference use procedure, participant does not wish that people adopts for going to control videoCollection equipment; Or, because participant self does not grasp the control method to video capture device, therebyCannot realize the control to the aspect ratio value of object in the picture of each meeting-place.
Summary of the invention
In view of this, the embodiment of the present invention expect provide one realize the self-adjusting method of meeting-place picture andMCU, can adjust in real time by MCU the focal length of video capture device, right to realize in the picture of each meeting-placeThe automatic adjustment of the aspect ratio value of elephant.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides one to realize the self-adjusting method of meeting-place picture, and described method comprises:
Receive the video pictures data in each meeting-place;
Video pictures decoding data processing to described each meeting-place respectively, obtains meeting-place picture;
Each meeting-place picture is carried out to pattern recognition process, obtain the aspect ratio of object in the picture of each meeting-placeMean value;
According to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meeting-place aspect ratio value itBetween the first difference, in real time the focal length of video capture device is once adjusted, dynamically to adjust each meetingThe aspect ratio mean value of object in the picture of field.
In such scheme, described method also comprises:
Aspect ratio mean value to object in the picture of described each meeting-place once compares, once thanResult;
When a described comparative result is that the aspect ratio mean value of object in the picture of described each meeting-place is inconsistentTime, filter out the minimum of a value in the aspect ratio mean value of object in the picture of each meeting-place, preset as secondMeeting-place aspect ratio value;
According to the aspect ratio mean value of object in the picture of each meeting-place and the second preset meeting-place aspect ratio value itBetween the second difference, in real time the focal length of video capture device is carried out to secondary adjustment, dynamically to adjust each meetingThe aspect ratio mean value of object in the picture of field.
In such scheme, described method also comprises:
Aspect ratio mean value to object in the picture of described each meeting-place carries out secondary comparison, obtains secondary ratioResult;
When described secondary comparative result is that the aspect ratio mean value of object in the picture of described each meeting-place is inconsistentTime, the arithmetic mean of instantaneous value of the aspect ratio mean value of object in all each meeting-place pictures of calculative determination, asThe 3rd preset meeting-place aspect ratio value;
According to the aspect ratio mean value of object in the picture of each meeting-place and the 3rd preset meeting-place aspect ratio value itBetween the 3rd difference, in real time each meeting-place picture is carried out to convergent-divergent processing, dynamically to adjust each meeting-place pictureThe aspect ratio mean value of middle object.
In such scheme, described method also comprises:
To each meeting-place picture processing of encoding after adjusting, form new video pictures data;
Described new video pictures data are realized to video by video display apparatus to be shown.
In such scheme, described method also comprises: in the time that detection has object in the picture of meeting-place to be moved,Again dynamically adjust the aspect ratio mean value of object in the picture of each meeting-place.
The embodiment of the present invention also provides a kind of MCU, and described MCU comprises receiver module, decoder module, mouldFormula recognition processing module and the first adjusting module; Wherein,
Described receiver module, for receiving the video pictures data in each meeting-place;
Described decoder module, for the video pictures decoding data processing to described each meeting-place respectively,Obtain meeting-place picture;
Described pattern recognition process module, for each meeting-place picture is carried out to pattern recognition process, obtains everyThe aspect ratio mean value of object in the picture of individual meeting-place;
Described the first adjusting module, for according to the aspect ratio mean value of each meeting-place picture object andThe first difference between one preset meeting-place aspect ratio value, carries out once the focal length of video capture device in real timeAdjust, dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
In such scheme, described MCU also comprises the first contrast module, screening module and the second adjustmentModule; Wherein,
Described the first contrast module, for entering the aspect ratio mean value of described each meeting-place picture objectRow once compares, and obtains comparative result one time;
Described screening module is the picture of described each meeting-place picture object for working as a described comparative resultWhen face ratio mean value is inconsistent, filter out in the aspect ratio mean value of object in the picture of each meeting-placeLittle value, as the second preset meeting-place aspect ratio value;
Described the second adjusting module, for according to the aspect ratio mean value of each meeting-place picture object andThe second difference between two preset meeting-place aspect ratio values, carries out secondary to the focal length of video capture device in real timeAdjust, dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
In such scheme, described MCU also comprises the second contrast module, computing module and convergent-divergent processingModule; Wherein,
Described the second contrast module, for entering the aspect ratio mean value of described each meeting-place picture objectThe comparison of row secondary, obtains secondary comparative result;
Described computing module is the picture of described each meeting-place picture object for working as described secondary comparative resultWhen face ratio mean value is inconsistent, the aspect ratio mean value of object in all each meeting-place pictures of calculative determinationArithmetic mean of instantaneous value, as the 3rd preset meeting-place aspect ratio value;
Described convergent-divergent processing module, for according to the aspect ratio mean value of each meeting-place picture object andThe 3rd difference between three preset meeting-place aspect ratio values, carries out convergent-divergent processing to each meeting-place picture in real time,Dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
In such scheme, described MCU also comprises coding module, display control module; Wherein,
Described decoder module, for processing that each meeting-place picture after adjusting is encoded, forms new lookingFrequently picture data;
Described display control module, for realizing described new video pictures data by video display apparatusVideo shows.
In such scheme, described MCU also comprises detection module; Wherein,
Whether described detection module, be moved for detection of the object in the picture of meeting-place; When detection has meeting-placeWhen object in picture is moved, again control the aspect ratio mean value to object in the picture of each meeting-placeDynamic adjustment.
What the embodiment of the present invention provided realizes the self-adjusting method of meeting-place picture and MCU, and MCU receivesThe video pictures data in each meeting-place, the video pictures decoding data processing to described each meeting-place respectively,Obtain meeting-place picture; Each meeting-place picture is carried out to pattern recognition process, obtain object in the picture of each meeting-placeAspect ratio mean value; According to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meetingThe first difference between the aspect ratio value of field, once adjusts the focal length of video capture device in real time, withDynamically adjust the aspect ratio mean value of object in the picture of each meeting-place. So, can be real-time by MCUAdjust the focal length of video capture device, to realize the automatic adjustment of the aspect ratio value of object in the picture of each meeting-place,Thereby promote the visual effect of whole video pictures. In addition, due to the picture ratio of object in the picture of each meeting-placeExample value can be automatically controlled, and makes beholder to determine each meeting according to the demonstration situation of video picturesPhysical location and the size of object in the picture of field.
Brief description of the drawings
Fig. 1 is the schematic flow sheet one that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture;
Fig. 2 is the embodiment of the present invention is carried out pattern recognition process realization flow signal to each meeting-place pictureFigure;
Fig. 3 is the aspect ratio schematic diagram of object in several meeting-place pictures of the embodiment of the present invention;
Fig. 4 is the schematic flow sheet two that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture;
Fig. 5 is the schematic flow sheet three that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture;
Fig. 6 is the effect contrast figure that the embodiment of the present invention is carried out convergent-divergent processing to each meeting-place picture in real time;
Fig. 7 is the schematic flow sheet four that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture;
Fig. 8 is the schematic flow sheet five that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture;
Fig. 9 is the composition structural representation one of embodiment of the present invention MCU;
Figure 10 is the composition structural representation of pattern recognition process module in embodiment of the present invention MCU;
Figure 11 is the composition structural representation two of embodiment of the present invention MCU;
Figure 12 is the composition structural representation three of embodiment of the present invention MCU;
Figure 13 is the composition structural representation four of embodiment of the present invention MCU;
Figure 14 is the composition structural representation five of embodiment of the present invention MCU.
Detailed description of the invention
In embodiments of the present invention, MCU receives the video pictures data in each meeting-place, respectively to described eachThe video pictures decoding data processing in meeting-place, obtains meeting-place picture; Each meeting-place picture is carried out to patternIdentifying processing, obtains the aspect ratio mean value of object in the picture of each meeting-place; According in the picture of each meeting-placeThe first difference between the aspect ratio mean value of object and the first preset meeting-place aspect ratio value, in real time to lookingFrequently the focal length of collecting device is once adjusted, dynamically to adjust the aspect ratio of object in the picture of each meeting-placeMean value.
Below in conjunction with drawings and the specific embodiments, the present invention is further described in more detail.
Embodiment mono-
Fig. 1 is the schematic flow sheet one that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture, as figureShown in 1, the embodiment of the present invention realizes the self-adjusting method of meeting-place picture and comprises:
Step S101: the video pictures data that receive each meeting-place;
Particularly, MCU receives the video pictures data that sent by the video capture device in each meeting-place. Wherein,Described video capture device can comprise video camera, video recorder, camera and video frequency collection card etc.
Here, it should be noted that, in video conferencing system, first look by video capture device collectionFrequently picture, and according to default coded system, gathered video pictures encode after processing and is sent toMCU。
Step S102: the video pictures decoding data processing to described each meeting-place respectively, obtains meeting-placePicture;
Particularly, MCU according to the decoding process corresponding with default coded system to described video pictures dataThe processing of decoding, obtains several meeting-place pictures.
Step S103: each meeting-place picture is carried out to pattern recognition process, obtain object in the picture of each meeting-placeAspect ratio mean value;
Here, described object can comprise anyone or any article in meeting-place etc.; Correspondingly, described rightThe picture of elephant can comprise anyone or picture of any article in meeting-place etc.
Particularly, as shown in Figure 2, MCU carries out pattern recognition process to each meeting-place picture, obtains eachIn the picture of meeting-place, the aspect ratio mean value of object comprises:
Step S1031: each meeting-place picture is carried out to pattern recognition process, determine in the picture of each meeting-placeThe image information of each object;
In embodiments of the present invention, because the picture of each object is close to rectangle, so MCU determinesIn the each meeting-place picture going out, the image information of each object can comprise the length of picture of each object and wide.
Step S1032: determine each object according to the image information of each object in the picture of each meeting-placeArea;
Particularly, calculate length and wide both take advantage of of the image information of each object by the area formula of rectangleAmass, can determine the area of each object.
Step S1033: by calculating the arithmetic mean of instantaneous value of the area of all objects in the picture of each meeting-place,To the average area of object in the picture of each meeting-place;
Step S1034: by calculating average area and the whole meeting-place picture face of object in the picture of each meeting-placeLong-pending ratio, obtains the aspect ratio mean value of object in the picture of each meeting-place.
Step S104: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meeting-placeThe first difference between face ratio value, once adjusts the focal length of video capture device in real time, with dynamicallyAdjust the aspect ratio mean value of object in the picture of each meeting-place.
Here in MCU, set in advance the first preset meeting-place aspect ratio value option, for user's root,Select the first suitable preset meeting-place aspect ratio value according to actual needs.
Particularly, Fig. 3 is the aspect ratio signal of object in several meeting-place pictures of the embodiment of the present inventionFigure, as shown in Figure 3, wherein, represents in Fig. 3 (a) that the first preset meeting-place aspect ratio value is 1/4,In represented certain meeting-place picture, the aspect ratio mean value of object is 1/2 in as Fig. 3 (b),When aspect ratio mean value and the first preset meeting-place aspect ratio value of object in the picture of described each meeting-placeBetween the first difference while being positive number, illustrate that the aspect ratio of object in the picture of each meeting-place is greater than firstPreset meeting-place aspect ratio, MCU sends the order of the focal length that pushes away video capture device far away to video acquisitionEquipment, pushes away focal length far away to control video capture device, thereby dynamically adjusts object in the picture of each meeting-placeAspect ratio mean value, the aspect ratio mean value of object in the picture of each meeting-place is constantly reduced to orMaximum approaches described the first preset meeting-place aspect ratio value.
Accordingly, as shown in Figure 3, wherein, in Fig. 3 (a), represent the first preset meeting-place aspect ratioValue is 1/4, the aspect ratio mean value of object in represented certain meeting-place picture in as Fig. 3 (c)Be 1/9, when draw in aspect ratio mean value and the first preset meeting-place of object in the picture of described each meeting-placeWhen the first difference between face ratio value is negative, the aspect ratio of object in the picture of each meeting-place is describedBe less than the first preset meeting-place aspect ratio, MCU sends the order of the focal length of the video capture device that furthers and arrivesVideo capture device, to control the video capture device focal length that furthers, thereby dynamically adjusts each meeting-place pictureThe aspect ratio mean value of middle object, constantly increases the aspect ratio mean value of object in the picture of each meeting-placeLarge to or maximumly approach described the first preset meeting-place aspect ratio value.
In embodiments of the present invention, it should be noted that, due to the Focussing scope basis of video capture deviceThe limitation of body, make once to adjust by described, might not make object in the picture of each meeting-placeAspect ratio mean value reaches described the first preset meeting-place aspect ratio value, and therefore, MCU establishes video acquisitionThe once adjustment of standby focal length is until stop when described the first difference expansion.
Embodiment bis-
Fig. 4 is the schematic flow sheet two that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture, as figure4 show, the embodiment of the present invention realizes the self-adjusting method of meeting-place picture and comprises:
Step S101: the video pictures data that receive each meeting-place;
Step S102: the video pictures decoding data processing to described each meeting-place respectively, obtains meeting-placePicture;
Step S103: each meeting-place picture is carried out to pattern recognition process, obtain object in the picture of each meeting-placeAspect ratio mean value;
Step S104: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meeting-placeThe first difference between face ratio value, once adjusts the focal length of video capture device in real time, with dynamicallyAdjust the aspect ratio mean value of object in the picture of each meeting-place;
Step S101 in the embodiment of the present invention two can distinguish accordingly referring to embodiment mono-to step S104In step S101 to step S104, for save length, repeat no more here.
Step S201: the aspect ratio mean value to object in the picture of described each meeting-place once compares,Obtain comparative result one time;
Step S202: when the aspect ratio that a described comparative result is object in the picture of described each meeting-place is put downWhen average is inconsistent, filter out the minimum of a value in the aspect ratio mean value of object in the picture of each meeting-place, doIt is the second preset meeting-place aspect ratio value;
Here, it should be noted that, when a described comparative result is object in the picture of described each meeting-placeWhen aspect ratio mean value is inconsistent, show that MCU passes through the focal length of step S104 to video capture deviceOnce adjustment, do not make the aspect ratio mean value of object in the picture of each meeting-place reach described first presetMeeting-place aspect ratio value.
Step S203: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the second preset meeting-placeThe second difference between face ratio value, carries out secondary adjustment to the focal length of video capture device in real time, with dynamicallyAdjust the aspect ratio mean value of object in the picture of each meeting-place.
Particularly, when aspect ratio mean value and the second preset meeting-place of object in the picture of described each meeting-placeWhen the second difference between aspect ratio value is positive number, the picture ratio of object in the picture of each meeting-place is describedExample is greater than the second preset meeting-place aspect ratio, and MCU sends the order of the focal length that pushes away video capture device far awayTo video capture device, push away focal length far away to control video capture device, draw thereby dynamically adjust each meeting-placeThe aspect ratio mean value of object in face, makes the aspect ratio mean value of object in the picture of each meeting-place notDisconnected be reduced to or maximumly approach described the second preset meeting-place aspect ratio value.
Accordingly, when aspect ratio mean value and the second preset meeting of object in the picture of described each meeting-placeWhen the second difference between the aspect ratio value of field is negative, the picture of object in the picture of each meeting-place is describedRatio is less than the second preset meeting-place aspect ratio, and MCU sends the life of the focal length of the video capture device that furthersOrder is to video capture device, to control the video capture device focal length that furthers, thereby dynamically adjusts each meeting-placeThe aspect ratio mean value of object in picture, makes the aspect ratio mean value of object in the picture of each meeting-place notDisconnected increase to or maximumly approach described the second preset meeting-place aspect ratio value.
In embodiments of the present invention, it should be noted that, similarly, because the focal length of video capture device is adjustedThe limitation of whole scope itself, makes to adjust by described secondary, might not make each meeting-place pictureThe aspect ratio mean value of middle object reaches described the second preset meeting-place aspect ratio value, and therefore, MCU is to lookingFrequently the secondary adjustment of the focal length of collecting device is until stop when described the second difference expansion.
Embodiment tri-
Fig. 5 is the schematic flow sheet three that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture, as figureShown in 5, the embodiment of the present invention realizes the self-adjusting method of meeting-place picture and comprises:
Step S101: the video pictures data that receive each meeting-place;
Step S102: the video pictures decoding data processing to described each meeting-place respectively, obtains meeting-placePicture;
Step S103: each meeting-place picture is carried out to pattern recognition process, obtain object in the picture of each meeting-placeAspect ratio mean value;
Step S104: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meeting-placeThe first difference between face ratio value, once adjusts the focal length of video capture device in real time, with dynamicallyAdjust the aspect ratio mean value of object in the picture of each meeting-place;
Step S101 in the embodiment of the present invention three can distinguish accordingly referring to embodiment mono-to step S104In step S101 to step S104, for save length, repeat no more here.
Step S201: the aspect ratio mean value to object in the picture of described each meeting-place once compares,Obtain comparative result one time;
Step S202: when the aspect ratio that a described comparative result is object in the picture of described each meeting-place is put downWhen average is inconsistent, filter out the minimum of a value in the aspect ratio mean value of object in the picture of each meeting-place, doIt is the second preset meeting-place aspect ratio value;
Step S203: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the second preset meeting-placeThe second difference between face ratio value, carries out secondary adjustment to the focal length of video capture device in real time, with dynamicallyAdjust the aspect ratio mean value of object in the picture of each meeting-place;
Step S201 in the embodiment of the present invention three can distinguish accordingly referring to embodiment mono-to step S203In step S201 to step S203, for save length, repeat no more here.
Step S301: the aspect ratio mean value to object in the picture of described each meeting-place carries out secondary comparison,Obtain secondary comparative result;
Step S302: when the aspect ratio that described secondary comparative result is object in the picture of described each meeting-place is put downWhen average is inconsistent, in all each meeting-place pictures of calculative determination, the arithmetic of the aspect ratio mean value of object is flatAverage, as the 3rd preset meeting-place aspect ratio value;
Here, it should be noted that, when described secondary comparative result is object in the picture of described each meeting-placeWhen aspect ratio mean value is inconsistent, show that MCU passes through the focal length of step S203 to video capture deviceSecondary adjustment, do not make the aspect ratio mean value of object in the picture of each meeting-place reach described second presetMeeting-place aspect ratio value.
Step S303: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the 3rd preset meeting-placeThe 3rd difference between face ratio value, carries out convergent-divergent processing to each meeting-place picture in real time, every dynamically to adjustThe aspect ratio mean value of object in the picture of individual meeting-place.
Particularly, when aspect ratio mean value and the 3rd preset meeting-place picture of object in certain meeting-place pictureWhen the 3rd difference between ratio value is positive number, illustrate that the aspect ratio of object in the picture of described meeting-place is largeIn the 3rd preset meeting-place aspect ratio, MCU dwindles described meeting-place picture, amplifies other meeting-place simultaneously and drawsFace;
Accordingly, when draw in aspect ratio mean value and the 3rd preset meeting-place of object in certain meeting-place pictureWhen the 3rd difference between face ratio value is negative, the aspect ratio of object in the picture of described meeting-place is describedBe less than the 3rd preset meeting-place aspect ratio, MCU dwindles described meeting-place picture, amplifies other meeting-place simultaneouslyPicture.
For instance, Figure 6 shows that the embodiment of the present invention carries out convergent-divergent processing to each meeting-place picture in real timeEffect contrast figure; Wherein, as shown in Fig. 6 (a), for not passing through each meeting-place picture disply of convergent-divergent processingDesign sketch, as shown in Fig. 6 (b), is each meeting-place picture display effect figure through convergent-divergent processing. So,In real time each meeting-place picture is carried out to convergent-divergent processing by step S303, make object in the picture of each meeting-placeAspect ratio mean value reaches described the 3rd preset meeting-place aspect ratio value.
Embodiment tetra-
Fig. 7 is the schematic flow sheet four that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture, as figureShown in 7, the embodiment of the present invention realizes the self-adjusting method of meeting-place picture and comprises:
Step S101: the video pictures data that receive each meeting-place;
Step S102: the video pictures decoding data processing to described each meeting-place respectively, obtains meeting-placePicture;
Step S103: each meeting-place picture is carried out to pattern recognition process, obtain object in the picture of each meeting-placeAspect ratio mean value;
Step S104: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meeting-placeThe first difference between face ratio value, once adjusts the focal length of video capture device in real time, with dynamicallyAdjust the aspect ratio mean value of object in the picture of each meeting-place.
Step S101 in the embodiment of the present invention four can distinguish accordingly referring to embodiment mono-to step S104In step S101 to step S104, for save length, repeat no more here.
Step S401: to each meeting-place picture processing of encoding after adjusting, form new video pictures numberAccording to;
Particularly, MCU can encode to each meeting-place picture after adjusting according to default coded systemProcess, thereby form new video pictures data.
Step S402: described new video pictures data are realized to video by video display apparatus and show.
Embodiment five
Fig. 8 is the schematic flow sheet five that the embodiment of the present invention realizes the self-adjusting method of meeting-place picture, as figureShown in 8, the embodiment of the present invention realizes the self-adjusting method of meeting-place picture and comprises:
Step S101: the video pictures data that receive each meeting-place;
Step S102: the video pictures decoding data processing to described each meeting-place respectively, obtains meeting-placePicture;
Step S103: each meeting-place picture is carried out to pattern recognition process, obtain object in the picture of each meeting-placeAspect ratio mean value;
Step S104: draw according to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meeting-placeThe first difference between face ratio value, once adjusts the focal length of video capture device in real time, with dynamicallyAdjust the aspect ratio mean value of object in the picture of each meeting-place.
Step S101 in the embodiment of the present invention five can distinguish accordingly referring to embodiment mono-to step S104In step S101 to step S104, for save length, repeat no more here.
Step S501: in the time that detection has object in the picture of meeting-place to be moved, again dynamically adjust each meetingThe aspect ratio mean value of object in the picture of field.
Particularly, whether the object that MCU can detect in the picture of meeting-place in real time or is regularly moved, and works as inspectionWhen survey has the object in some meeting-place picture or multiple meeting-place picture to be moved, can pass through abovementioned stepsS101 dynamically adjusts the aspect ratio mean value of object in the picture of each meeting-place again to the method for step S104.
Embodiment six
Fig. 9 is the composition structural representation one of embodiment of the present invention MCU, and as shown in Figure 9, the present invention is realExecuting routine MCU comprises: receiver module 901, decoder module 902, pattern recognition process module 903 andThe first adjusting module 904; Wherein,
Described receiver module 901, for receiving the video pictures data in each meeting-place;
Described decoder module 902, for the video pictures decoding data place to described each meeting-place respectivelyReason, obtains meeting-place picture;
Described pattern recognition process module 903, for each meeting-place picture is carried out to pattern recognition process, obtainsObtain the aspect ratio mean value of object in the picture of each meeting-place;
Described the first adjusting module 904, for according to the aspect ratio mean value of each meeting-place picture objectAnd the first difference between the first preset meeting-place aspect ratio value, carries out the focal length of video capture device in real timeOnce adjust, dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
In embodiments of the present invention, as shown in figure 10, described pattern recognition process module 903 comprises that first is trueOrder unit 9031, the second determining unit 9032, the first acquiring unit 9033 and second acquisition unit 9034;Wherein,
Described the first determining unit 9031, for each meeting-place picture is carried out to pattern recognition process, determinesThe image information of each object in the picture of each meeting-place;
Described the second determining unit 9032, for true according to the image information of each meeting-place each object of pictureMake the area of each object;
Described the first acquiring unit 9033, for the area by calculating each meeting-place picture all objectsArithmetic mean of instantaneous value, obtains the average area of object in the picture of each meeting-place;
Described second acquisition unit 9034, for the average area by calculating each meeting-place picture object withThe ratio of whole meeting-place picture area, obtains the aspect ratio mean value of object in the picture of each meeting-place.
In one embodiment, as shown in figure 11, described MCU also comprises the first contrast module 905, screeningModule 906 and the second adjusting module 907; Wherein,
Described the first contrast module 905, for average to the aspect ratio of described each meeting-place picture objectValue once compares, and obtains comparative result one time;
Described screening module 906 is described each meeting-place picture object for working as a described comparative resultAspect ratio mean value when inconsistent, filter out in the aspect ratio mean value of object in the picture of each meeting-placeMinimum of a value, as the second preset meeting-place aspect ratio value;
Described the second adjusting module 907, for according to the aspect ratio mean value of each meeting-place picture objectAnd the second difference between the second preset meeting-place aspect ratio value, carries out the focal length of video capture device in real timeSecondary is adjusted, dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
In one embodiment, as shown in figure 12, described MCU also comprises the second contrast module 908, calculatesModule 909 and convergent-divergent processing module 910; Wherein,
Described the second contrast module 908, for average to the aspect ratio of described each meeting-place picture objectValue is carried out secondary comparison, obtains secondary comparative result;
Described computing module 909 is described each meeting-place picture object for working as described secondary comparative resultAspect ratio mean value when inconsistent, in all each meeting-place pictures of calculative determination, the aspect ratio of object is flatThe arithmetic mean of instantaneous value of average, as the 3rd preset meeting-place aspect ratio value;
Described convergent-divergent processing module 910, for according to the aspect ratio mean value of each meeting-place picture objectAnd the 3rd difference between the 3rd preset meeting-place aspect ratio value, carries out convergent-divergent place to each meeting-place picture in real timeReason, dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
In one embodiment, as shown in figure 13, described MCU also comprises coding module 911, shows and controlModule 912; Wherein,
Described decoder module 911, for processing that each meeting-place picture after adjusting is encoded, forms newVideo pictures data;
Described display control module 912, for passing through video display apparatus by described new video pictures dataRealizing video shows.
In one embodiment, as shown in figure 14, described MCU also comprises detection module 913; Wherein,
Whether described detection module 913, be moved for detection of the object in the picture of meeting-place; When detection hasWhen object in the picture of meeting-place is moved, again control the picture of aforementioned modules to object in the picture of each meeting-placeThe dynamic adjustment of face ratio mean value.
In actual applications, the each module providing in the embodiment of the present invention, and the unit that module comprises is separately allCan realize by the processor in MCU, also can realize by concrete logic circuit.
Between the technical scheme that the embodiment of the present invention is recorded, in the situation that not conflicting, can be combined.
In several embodiment provided by the present invention, should be understood that, disclosed method and apparatus, canTo realize by another way. Device embodiment described above is only schematically, for example, and instituteStating the division of unit, is only that a kind of logic function is divided, and when actual realization, can have other dividing mode,As: multiple unit or assembly can be in conjunction with, maybe can be integrated into another system, or some features can be neglectedOmit, or do not carry out. In addition, shown or discussed each part coupling or direct coupling each otherClosing or communicate to connect can be by some interfaces, and the INDIRECT COUPLING of equipment or unit or communication connection, canTo be electrical, machinery or other form.
The above-mentioned unit as separating component explanation can or can not be also physically to separate, asThe parts that unit shows can be or can not be also physical locations, can be positioned at a place, also canTo be distributed on multiple NEs; Can select according to the actual needs part or all of unit whereinRealize the object of the present embodiment scheme.
In addition, the each functional unit in various embodiments of the present invention can all be integrated in a processing unit,Also can be that each unit is distinguished separately as a unit, also can be integrated in one in two or more unitIn individual unit; Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt hardware to add softThe form of part functional unit realizes.
The above be only the specific embodiment of the present invention, but protection scope of the present invention is not limited toThis, any be familiar with those skilled in the art the present invention disclose technical scope in, can expect easilyChange or replace, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. realize the self-adjusting method of meeting-place picture, it is characterized in that, described method comprises:
Receive the video pictures data in each meeting-place;
Video pictures decoding data processing to described each meeting-place respectively, obtains meeting-place picture;
Each meeting-place picture is carried out to pattern recognition process, obtain the aspect ratio of object in the picture of each meeting-placeMean value;
According to the aspect ratio mean value of object in the picture of each meeting-place and the first preset meeting-place aspect ratio value itBetween the first difference, in real time the focal length of video capture device is once adjusted, dynamically to adjust each meetingThe aspect ratio mean value of object in the picture of field.
2. method according to claim 1, is characterized in that, described method also comprises:
Aspect ratio mean value to object in the picture of described each meeting-place once compares, once thanResult;
When a described comparative result is that the aspect ratio mean value of object in the picture of described each meeting-place is inconsistentTime, filter out the minimum of a value in the aspect ratio mean value of object in the picture of each meeting-place, preset as secondMeeting-place aspect ratio value;
According to the aspect ratio mean value of object in the picture of each meeting-place and the second preset meeting-place aspect ratio value itBetween the second difference, in real time the focal length of video capture device is carried out to secondary adjustment, dynamically to adjust each meetingThe aspect ratio mean value of object in the picture of field.
3. method according to claim 2, is characterized in that, described method also comprises:
Aspect ratio mean value to object in the picture of described each meeting-place carries out secondary comparison, obtains secondary ratioResult;
When described secondary comparative result is that the aspect ratio mean value of object in the picture of described each meeting-place is inconsistentTime, the arithmetic mean of instantaneous value of the aspect ratio mean value of object in all each meeting-place pictures of calculative determination, asThe 3rd preset meeting-place aspect ratio value;
According to the aspect ratio mean value of object in the picture of each meeting-place and the 3rd preset meeting-place aspect ratio value itBetween the 3rd difference, in real time each meeting-place picture is carried out to convergent-divergent processing, dynamically to adjust each meeting-place pictureThe aspect ratio mean value of middle object.
4. according to the method described in claims 1 to 3 any one, it is characterized in that, described method also comprises:
To each meeting-place picture processing of encoding after adjusting, form new video pictures data;
Described new video pictures data are realized to video by video display apparatus to be shown.
5. according to the method described in claims 1 to 3 any one, it is characterized in that, described method also comprises:In the time that detection has object in the picture of meeting-place to be moved, again dynamically adjust object in the picture of each meeting-placeAspect ratio mean value.
6. a multipoint control unit MCU, is characterized in that, described MCU comprises receiver module, solutionCode module, pattern recognition process module and the first adjusting module; Wherein,
Described receiver module, for receiving the video pictures data in each meeting-place;
Described decoder module, for the video pictures decoding data processing to described each meeting-place respectively,Obtain meeting-place picture;
Described pattern recognition process module, for each meeting-place picture is carried out to pattern recognition process, obtains everyThe aspect ratio mean value of object in the picture of individual meeting-place;
Described the first adjusting module, for according to the aspect ratio mean value of each meeting-place picture object andThe first difference between one preset meeting-place aspect ratio value, carries out once the focal length of video capture device in real timeAdjust, dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
7. MCU according to claim 6, is characterized in that, described MCU also comprises first pairThan module, screening module and the second adjusting module; Wherein,
Described the first contrast module, for entering the aspect ratio mean value of described each meeting-place picture objectRow once compares, and obtains comparative result one time;
Described screening module is the picture of described each meeting-place picture object for working as a described comparative resultWhen face ratio mean value is inconsistent, filter out in the aspect ratio mean value of object in the picture of each meeting-placeLittle value, as the second preset meeting-place aspect ratio value;
Described the second adjusting module, for according to the aspect ratio mean value of each meeting-place picture object andThe second difference between two preset meeting-place aspect ratio values, carries out secondary to the focal length of video capture device in real timeAdjust, dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
8. MCU according to claim 7, is characterized in that, described MCU also comprises second pairThan module, computing module and convergent-divergent processing module; Wherein,
Described the second contrast module, for entering the aspect ratio mean value of described each meeting-place picture objectThe comparison of row secondary, obtains secondary comparative result;
Described computing module is the picture of described each meeting-place picture object for working as described secondary comparative resultWhen face ratio mean value is inconsistent, the aspect ratio mean value of object in all each meeting-place pictures of calculative determinationArithmetic mean of instantaneous value, as the 3rd preset meeting-place aspect ratio value;
Described convergent-divergent processing module, for according to the aspect ratio mean value of each meeting-place picture object andThe 3rd difference between three preset meeting-place aspect ratio values, carries out convergent-divergent processing to each meeting-place picture in real time,Dynamically to adjust the aspect ratio mean value of object in the picture of each meeting-place.
9. according to the MCU described in claim 6 to 8 any one, it is characterized in that, described MCU alsoComprise coding module, display control module; Wherein,
Described decoder module, for processing that each meeting-place picture after adjusting is encoded, forms new lookingFrequently picture data;
Described display control module, for realizing described new video pictures data by video display apparatusVideo shows.
10. according to the MCU described in claim 6 to 8 any one, it is characterized in that, described MCU alsoComprise detection module; Wherein,
Whether described detection module, be moved for detection of the object in the picture of meeting-place; When detection has meeting-placeWhen object in picture is moved, again control the aspect ratio mean value to object in the picture of each meeting-placeDynamic adjustment.
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| CN201410624142.5A CN105592288B (en) | 2014-11-07 | 2014-11-07 | Method for realizing automatic adjustment of meeting place picture and multipoint control unit |
| PCT/CN2015/078654 WO2016070599A1 (en) | 2014-11-07 | 2015-05-11 | Image adjusting method, multipoint control unit, and computer storage medium |
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| CN201410624142.5A CN105592288B (en) | 2014-11-07 | 2014-11-07 | Method for realizing automatic adjustment of meeting place picture and multipoint control unit |
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