CN102244762A - Camera tracking method and system used in conference system - Google Patents
Camera tracking method and system used in conference system Download PDFInfo
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- CN102244762A CN102244762A CN2011101490536A CN201110149053A CN102244762A CN 102244762 A CN102244762 A CN 102244762A CN 2011101490536 A CN2011101490536 A CN 2011101490536A CN 201110149053 A CN201110149053 A CN 201110149053A CN 102244762 A CN102244762 A CN 102244762A
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Abstract
The invention is applicable to the communication field, and provides a camera tracking method and system used in a conference system. The method comprises the following steps: automatically detecting whether participants speak, and selecting out a main spokesman from a plurality of the spokesmen; controlling a camera device to point to the main spokesman, and obtaining a facial image of the main spokesman; and sending the facial image of the main spokesman to a remote terminal via a network or locally storing the facial image. By utilizing the method and the system, real-time camera tracking and automatic volume adjustment can be realized in the conference system.
Description
Technical field
The invention belongs to the communications field, relate in particular to a kind of method and system of shooting tracking of conference system.
Background technology
Along with society and development of science and technology, the communication technology is applied to growing field, after the camera head that the local terminal is passed through in for example subregion meeting, present subregion meeting obtains participant's image, this image and sound is sent to by network shows on the remote terminal and play; Secondly the automatic recording of local meeting and preservation also need the following function of making a video recording.
Existing meeting shooting tracking technique mainly contains following problem: present tracing device for camera shooting all is to open and close by microphone whom detects is the spokesman, can't detect the spokesman automatically not carrying out the situation that microphone cuts out with opening operation; The participant's that the camera head of local terminal obtains the angular image of recording is fixed, and it can not adjusted in real time according to the mobile of spokesman, and promptly prior art can't realize that the shooting of moving follows the tracks of.
Summary of the invention
The method that the purpose of the embodiment of the invention is to provide a kind of shooting of conference system to follow the tracks of, the method that is intended to solve existing meeting can't realize problem that main spokesman's shooting is followed the tracks of.
The embodiment of the invention is achieved in that the method that a kind of shooting of conference system is followed the tracks of, and described method comprises:
Whether from the participant, detect the participant automatically in speech, and from the spokesman, select main spokesman;
The control camera head points to main spokesman; Obtain main spokesman's face-image;
Main spokesman's face-image is sent to remote terminal or is kept at this locality by network.
The present invention also provides a kind of shooting tracking system of conference system, and described system comprises:
Selected cell is used for when a plurality of participants make a speech, and selects main spokesman from the participant of a plurality of speeches;
The control image unit is used to control camera head and points to main spokesman; Obtain main spokesman's face-image; When the spokesman shifted out image pickup scope, the control camera head was followed the spokesman and is moved;
Transmitting element is used for main spokesman's face-image is sent to remote terminal by network.
In embodiments of the present invention, technical scheme provided by the invention is by choosing main spokesman, and the control camera head obtains main spokesman's face-image, transmission changes interarea portion image and realizes the tracking technique of making a video recording, so technical scheme of the present invention has the advantage that realization is followed the tracks of main spokesman's shooting.
Description of drawings
Fig. 1 is the flow chart of the shooting of the conference system that provides of the embodiment of the invention method of following the tracks of;
Fig. 2 is the structure chart of the shooting tracking system that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The method that the shooting of a kind of conference system provided by the invention is followed the tracks of, this method is actual can be a kind of implementation method of video conference, and this method is finished by the local terminal in the video conferencing system, and this method comprises as shown in Figure 1:
S11, whether from the participant, automatically detect the participant, and from the spokesman, select main spokesman in speech;
S12, control camera head point to main spokesman; Obtain main spokesman's face-image;
S13, main spokesman's face-image is sent to remote terminal by network.
Optionally, above-mentionedly from the participant, automatically detect the participant and whether be specifically as follows in the method for speech:
When the volume that detects a plurality of spokesman greater than speech during threshold value, be defined as a plurality of spokesman, the big or small user of the threshold value of wherein making a speech can set up on their own, for example greater than-40DB, can certainly specify other value according to the actual conditions of environment, so just need not detect the spokesman and whether open or close Mike and detect the spokesman and whether make a speech.
Need to prove that the method for selecting main spokesman among the S11 and from the spokesman is specifically as follows any one or the combination in the following manner;
Mode A, obtain the priority of spokesman among the participant, the artificial main spokesman of the speech that priority is the highest;
Mode B, obtain the volume of spokesman among the participant, the artificial main spokesman of the speech that volume is the highest;
Mode C, obtain the priority of spokesman among the participant, and the highest speech of priority is artificially a plurality of, the highest with priority, the artificial main spokesman of the speech that volume is the highest.
Method provided by the invention can be followed the trail of main spokesman's video image automatically, so it has the advantage that shooting is followed the tracks of.
Optionally, in S12, obtain main spokesman face-image concrete grammar can for:
After determining certain artificial main spokesman, camera head is adjusted to and main spokesman's corresponding preset point position (can advise the position of each spokesman's corresponding preset point in advance) automatically, judge as main spokesman again to be positioned at image pickup scope, directly obtain main spokesman's face-image;
Be positioned at outside the image pickup scope as main spokesman, when the angle of adjusting camera head makes spokesman's face-image be positioned at image pickup scope, obtain main spokesman's face-image.
In addition, need to prove, the angle of camera head can be drawn according to the distance calculation of spokesman and image pickup scope, for example the distance of angle=k2* spokesman and image pickup scope; Wherein K2 is the angle empirical coefficient, and the user can set up on their own, and the method for calculating angle certainly can also adopt other modes, the invention is not restricted to aforesaid way.
Like this when main spokesman moves, can real-time tracking master spokesman, better realize the purpose of real-time tracking.
Optionally, said method all can also comprise before S13 and afterwards:
Detect the volume of meeting, as this volume during greater than noise threshold, according to
Y=setting threshold+K (detecting volume-setting threshold) adjusts volume;
Wherein, Y is adjusted volume, and K is an empirical coefficient, wherein 0＜=K＜=1.
When also exceeding in the predefined volume range, this volume is adjusted to this predefined volume range as the size of Y (adjusted volume).For example, the size of detected volume is-60DB, and adjusted volume is-50DB, and predefined volume range is-48--30DB, then this volume is adjusted to automatically-the value that differs minimum in the 48--30DB promptly is-48DB.In addition, above-mentionedly exceed predefined volume range and comprise: greater than the maximum of predefined volume range or less than the minimum value of predefined volume range.
Wherein setting threshold (also can cry and be typical problem) can set up on their own according to actual conditions for the user, for example-30DB, this value preferably is included in the volume range that sets in advance, empirical coefficient can be set up on their own by the user, also can set when mounted by producer, certainly this gauged distance can be the scope of a setting, and typical problem also can be the scope of a setting.
Concrete mode provided by the invention can be adjusted the size of volume according to the actual conditions of meeting, it has substituted the mode of traditional manual adjustments volume, so it has the high advantage of automaticity, in addition, because the volume of this meeting all is in the controlled scope all the time, excessive or the too small auditory effect variation that causes of volume so it can not occur has improved the meeting quality.
The present invention also provides a kind of shooting tracking system of conference system, and this system comprises as shown in Figure 2:
Selected cell 21 is used for whether detecting the participant automatically in speech from the participant, and selects main spokesman from the spokesman;
Transmitting element 23 is used for main spokesman's face-image is sent to remote terminal by network.
Optionally, said system also comprises:
Sound volume regulation unit 24 is used to detect the size of the volume of meeting, when exceeding in the predefined volume range as the size of this volume, this volume is adjusted to this predefined volume range.
Optionally, said system also comprises:
Volume computing unit 26 is used to detect the volume of meeting, exceeds setting threshold and during greater than noise threshold as this volume, according to
Y=setting threshold-K (detecting volume-setting threshold) adjusts volume;
Wherein, Y is adjusted volume, and K is an empirical coefficient.
Technical scheme provided by the invention has shooting and follows the tracks of the advantage that the meeting quality is high.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the shooting of the conference system method of following the tracks of is characterized in that described method comprises:
Whether from the participant, detect the participant automatically in speech, and from the spokesman, select main spokesman;
The control camera head points to main spokesman; Obtain main spokesman's face-image;
Main spokesman's face-image is sent to remote terminal or is saved to this locality by network.
2. whether method according to claim 1 is characterized in that, describedly automatically detect the participant be specially in the method for speech from the participant:
The volume that detects a plurality of participant's speeches surpasses when making a speech threshold value, is defined as a plurality of participants' speeches.
3. method according to claim 1 is characterized in that, the described method of selecting main spokesman from the participant of a plurality of speeches is specially:
Obtain the priority of spokesman among the participant, the artificial main spokesman of the speech that priority is the highest.
4. method according to claim 1 is characterized in that, the described method of selecting main spokesman from the participant of a plurality of speeches is specially:
Obtain the volume of many spokesman among the participant, the artificial main spokesman of the speech that volume is the highest.
5. method according to claim 1 is characterized in that, the described face-image that obtains main spokesman specifically comprises:
After determining certain artificial main spokesman, camera head is adjusted to and main spokesman's corresponding preset point position automatically, judges that more main spokesman is whether in image pickup scope:
Be positioned at image pickup scope as main spokesman, directly obtain main spokesman's face-image;
Be positioned at outside the image pickup scope as main spokesman, when the angle of adjusting camera head makes spokesman's face-image be positioned at image pickup scope, obtain main spokesman's face-image.
6. the shooting tracking system of a conference system is characterized in that, described system comprises:
Whether selected cell detects the participant automatically in speech, and select main spokesman from the spokesman from the participant;
The control image unit is used to control camera head and points to main spokesman; Obtain main spokesman's face-image; Transmitting element is used for main spokesman's face-image is sent to remote terminal by network.
7. require described system according to right 6, it is characterized in that, described system also comprises:
Sound volume regulation unit is used to detect the size of the volume of meeting, and carries out the adjustment of volume automatic gain.
If this volume is during greater than noise threshold, according to
Y=setting threshold+K (detecting volume-setting threshold) adjusts volume;
Wherein, Y is adjusted volume, and K is an empirical coefficient, 0＜=K＜=1.
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| CN2011101490536A CN102244762A (en) | 2011-06-03 | 2011-06-03 | Camera tracking method and system used in conference system |
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| CN2011101490536A CN102244762A (en) | 2011-06-03 | 2011-06-03 | Camera tracking method and system used in conference system |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281492A (en) * | 2013-05-23 | 2013-09-04 | 深圳锐取信息技术股份有限公司 | Video picture switching method, video picture switching system, recording and broadcasting server and video recording and broadcasting system |
| CN103486997A (en) * | 2012-06-13 | 2014-01-01 | 鸿富锦精密工业（深圳）有限公司 | Lens shooting range determining method and system |
| CN103780837A (en) * | 2014-01-02 | 2014-05-07 | 中安消技术有限公司 | Motion detection and positioning photography method and device thereof |
| WO2014180371A1 (en) * | 2013-11-14 | 2014-11-13 | 中兴通讯股份有限公司 | Conference control method and device, and conference system |
| CN105960801A (en) * | 2014-02-03 | 2016-09-21 | 谷歌公司 | Enhancing video conferences |
| CN106303365A (en) * | 2016-08-10 | 2017-01-04 | 张北江 | Audio object lookup method is in security protection video conference applications method and system |
| WO2017004762A1 (en) * | 2015-07-04 | 2017-01-12 | 马岩 | Video meeting microphone control method and system |
| CN106803886A (en) * | 2017-02-28 | 2017-06-06 | 深圳天珑无线科技有限公司 | A kind of method and device taken pictures |
| CN106921842A (en) * | 2015-12-28 | 2017-07-04 | 南宁富桂精密工业有限公司 | Make video recording Play System and method |
| CN108259926A (en) * | 2018-03-15 | 2018-07-06 | 田英 | A kind of interview live streaming switching method based on personage's sound |
| CN108366216A (en) * | 2018-02-28 | 2018-08-03 | 深圳市爱影互联文化传播有限公司 | TV news recording, record and transmission method, device and server |
| CN108924469A (en) * | 2018-08-01 | 2018-11-30 | 广州视源电子科技股份有限公司 | A kind of display screen switching Transmission system, intelligent interaction plate and method |
| CN112750247A (en) * | 2019-10-30 | 2021-05-04 | 京东方科技集团股份有限公司 | Participant identification method, identification system, computer device, and medium |
| CN116489502A (en) * | 2023-05-12 | 2023-07-25 | 深圳星河创意科技开发有限公司 | Remote conference method based on AI camera docking station and AI camera docking station |
| CN116684735B (en) * | 2023-06-14 | 2024-04-09 | 广州市远知初电子科技有限公司 | Audio and video acquisition system |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486997A (en) * | 2012-06-13 | 2014-01-01 | 鸿富锦精密工业（深圳）有限公司 | Lens shooting range determining method and system |
| CN103281492A (en) * | 2013-05-23 | 2013-09-04 | 深圳锐取信息技术股份有限公司 | Video picture switching method, video picture switching system, recording and broadcasting server and video recording and broadcasting system |
| WO2014180371A1 (en) * | 2013-11-14 | 2014-11-13 | 中兴通讯股份有限公司 | Conference control method and device, and conference system |
| CN103780837A (en) * | 2014-01-02 | 2014-05-07 | 中安消技术有限公司 | Motion detection and positioning photography method and device thereof |
| CN105960801A (en) * | 2014-02-03 | 2016-09-21 | 谷歌公司 | Enhancing video conferences |
| CN105960801B (en) * | 2014-02-03 | 2020-02-07 | 谷歌有限责任公司 | Enhancing video conferencing |
| WO2017004762A1 (en) * | 2015-07-04 | 2017-01-12 | 马岩 | Video meeting microphone control method and system |
| CN106921842A (en) * | 2015-12-28 | 2017-07-04 | 南宁富桂精密工业有限公司 | Make video recording Play System and method |
| CN106921842B (en) * | 2015-12-28 | 2019-10-01 | 南宁富桂精密工业有限公司 | Play system of making video recording and method |
| CN106303365A (en) * | 2016-08-10 | 2017-01-04 | 张北江 | Audio object lookup method is in security protection video conference applications method and system |
| CN106803886A (en) * | 2017-02-28 | 2017-06-06 | 深圳天珑无线科技有限公司 | A kind of method and device taken pictures |
| CN108366216A (en) * | 2018-02-28 | 2018-08-03 | 深圳市爱影互联文化传播有限公司 | TV news recording, record and transmission method, device and server |
| CN108259926A (en) * | 2018-03-15 | 2018-07-06 | 田英 | A kind of interview live streaming switching method based on personage's sound |
| CN108924469A (en) * | 2018-08-01 | 2018-11-30 | 广州视源电子科技股份有限公司 | A kind of display screen switching Transmission system, intelligent interaction plate and method |
| CN108924469B (en) * | 2018-08-01 | 2020-11-10 | 广州视源电子科技股份有限公司 | Display picture switching transmission system, intelligent interactive panel and method |
| CN112750247A (en) * | 2019-10-30 | 2021-05-04 | 京东方科技集团股份有限公司 | Participant identification method, identification system, computer device, and medium |
| CN116489502A (en) * | 2023-05-12 | 2023-07-25 | 深圳星河创意科技开发有限公司 | Remote conference method based on AI camera docking station and AI camera docking station |
| CN116489502B (en) * | 2023-05-12 | 2023-10-31 | 深圳星河创意科技开发有限公司 | Remote conference method based on AI camera docking station and AI camera docking station |
| CN116684735B (en) * | 2023-06-14 | 2024-04-09 | 广州市远知初电子科技有限公司 | Audio and video acquisition system |
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Application publication date: 20111116 |