CN201426153Y - Intelligent camera control system for video conference - Google Patents
Intelligent camera control system for video conference Download PDFInfo
- Publication number
- CN201426153Y CN201426153Y CN2009200572838U CN200920057283U CN201426153Y CN 201426153 Y CN201426153 Y CN 201426153Y CN 2009200572838 U CN2009200572838 U CN 2009200572838U CN 200920057283 U CN200920057283 U CN 200920057283U CN 201426153 Y CN201426153 Y CN 201426153Y
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- microphone array
- control system
- video conference
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Abstract
The utility model discloses an intelligent camera control system for video conference, which comprises a microphone array sound acquisition module, a preprocessing module, a judgment processing module, a voice signal detection module, a positioning calculation module and a camera control module. The utility model aims to provide an intelligent camera control system for the video conference, whichcan provide accurate voice source position, controls the turning of the camera and accurately shoots the face part of the spokesman in the conference for the video conference.
Description
[technical field]
The utility model relates to a kind of video conference intelligent video camera head control system that is used for.
[background technology]
At present, the camera control system of video conferencing system generally all adopts independent microphone to carry out collected sound signal, independent microphone can not be accurately to sound localization, thereby cause the camera control system that error is appearred in the control of camera, camera can not photograph meeting spokesman's face timely and accurately, so on this basis, the applicant has designed the utility model.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, and a kind of source position of coming that can determine sound accurately is provided, and what the control camera rotated the face that photographs the meeting spokesman timely and accurately is used for video conference intelligent video camera head control system.
For achieving the above object, the utility model has adopted following technical proposal: be used for video conference intelligent video camera head control system, it is characterized in that including:
Microphone array is gathered sound module, includes a plurality of microphones that surround three-dimensional shape;
Pretreatment module, the voice signal of microphone array being gathered the sound module collection carries out Filtering Processing;
Judging treatmenting module judges whether the signal of pretreatment module output is local signal;
The voice signal detection module, the local signal that judging treatmenting module is exported carries out the voice judgement;
The location Calculation module converts voice signal to the Control Parameter of camera;
The camera control module is rotated according to the Control Parameter control camera of current position of camera and camera.
The microphone array that described microphone array is gathered in the sound module is made up of four microphones, and these four microphones surround tetrahedron.
The microphone array that described microphone array is gathered in the sound module is made up of four microphones at least, and these microphones surround cone, and one of them microphone is arranged on the summit of circular cone, and other microphone is arranged on the circumference of bottom surface.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model can be determined the source position of coming of sound accurately, and the control camera rotates the face that photographs the meeting spokesman timely and accurately.
2, the utility model reasonable in design, control is convenient.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
[embodiment]
Be described in further detail below in conjunction with accompanying drawing and execution mode of the present utility model:
Referring to Fig. 1, the utility model has been introduced and has been used for video conference intelligent video camera head control system, and it includes: microphone array is gathered sound module 1, pretreatment module 2, judging treatmenting module 3, voice signal detection module 4, location Calculation module 5, camera control module 6.
Described microphone array is gathered sound module 1 and is included a plurality of microphones that surround three-dimensional shape, and microphone array can be formed and surrounded tetrahedron by four microphones.Microphone array also can be made up of at least four microphones, and these microphones surround cone, and one of them microphone is arranged on the summit of circular cone, and other microphone is arranged on the circumference of bottom surface.
The voice signal that 2 pairs of microphone arrays of described pretreatment module are gathered sound module 1 collection carries out Filtering Processing, and this pretreatment module 2 includes the feed circuit to microphone, signal amplification circuit, low-pass filter circuit and analog-to-digital conversion circuit etc.
Described judging treatmenting module 3 judges whether the signal of pretreatment module 2 outputs is local signals, can realize by analog circuit, power to signal estimates and compares with the thresholding of setting, and draws the local signal or the conclusion of remote signaling.Also can realize by DSP.
Described voice signal detection module 4 is judged the local signal of judging treatmenting module 3 output, judges voice signal or non-speech audio, and as switch door sound, knock desk sound etc., the existence of these signals need not camera is rotated adjustment.
Described location Calculation module 5 obtains its strongest frequency part by filtering, obtains between signal between any two time-delay by the signal correlation analysis then.Because the geometry of microphone array is known in design, utilizing the method for optimizing can determine the delayed data that is obtained, is to be sent by sound source where, and the voice signal of this position converts the Control Parameter of camera to, comprise horizontal direction, vertical direction and focusing parameter.
Described camera control module 6, according to the current position of camera and utilize camera and microphone array between geometrical relationship and the parameter control control camera that rotates of control camera rotate.For camera can steadily be reacted a sound source, we propose a thresholding is set in the change of camera position, just only time detect in N continuous and under the situation that sound source position changed camera are carried out real rotation and control.
Claims (3)
1, is used for video conference intelligent video camera head control system, it is characterized in that including
Microphone array is gathered sound module (1), includes a plurality of microphones that surround three-dimensional shape;
Pretreatment module (2), the voice signal of microphone array being gathered sound module (1) collection carries out Filtering Processing;
Judging treatmenting module (3) judges whether the signal of pretreatment module (2) output is local signal;
Voice signal detection module (4), the local signal that judging treatmenting module (3) is exported carries out the voice judgement;
Location Calculation module (5) converts voice signal to the Control Parameter of camera;
Camera control module (6) is rotated according to the Control Parameter control camera of current position of camera and camera.
2, the video conference intelligent video camera head control system that is used for according to claim 1 is characterized in that the microphone array in the described microphone array collection sound module (1) is made up of four microphones, and these four microphones surround tetrahedron.
3, the video conference intelligent video camera head control system that is used for according to claim 1, it is characterized in that the microphone array that described microphone array is gathered in the sound module (1) is made up of four microphones at least, these microphones surround cone, one of them microphone is arranged on the summit of circular cone, and other microphone is arranged on the circumference of bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200572838U CN201426153Y (en) | 2009-05-27 | 2009-05-27 | Intelligent camera control system for video conference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200572838U CN201426153Y (en) | 2009-05-27 | 2009-05-27 | Intelligent camera control system for video conference |
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| Publication Number | Publication Date |
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| CN201426153Y true CN201426153Y (en) | 2010-03-17 |
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| CN2009200572838U Expired - Fee Related CN201426153Y (en) | 2009-05-27 | 2009-05-27 | Intelligent camera control system for video conference |
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| CN (1) | CN201426153Y (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951492A (en) * | 2010-09-15 | 2011-01-19 | 中兴通讯股份有限公司 | Method and device for recording videos in video call |
| CN102361508A (en) * | 2011-07-27 | 2012-02-22 | 中国计量学院 | Sound acquisition and amplification circuit of two microphones for judging sound positions |
| CN102752573A (en) * | 2011-04-21 | 2012-10-24 | 中兴通讯股份有限公司 | Video communication terminal and video communication method |
| CN103581606A (en) * | 2012-08-09 | 2014-02-12 | 北京博威康技术有限公司 | Multimedia collecting device and method |
| CN103841360A (en) * | 2013-12-11 | 2014-06-04 | 三亚中兴软件有限责任公司 | Distributed video conference achieving method and system, video conference terminal and audio and video integrated device |
| CN104580992A (en) * | 2014-12-31 | 2015-04-29 | 广东欧珀移动通信有限公司 | Control method and mobile terminal |
| CN104811610A (en) * | 2015-04-01 | 2015-07-29 | 广东欧珀移动通信有限公司 | Method and device for controlling rotation of camera |
| CN104935819A (en) * | 2015-06-11 | 2015-09-23 | 广东欧珀移动通信有限公司 | Method for controlling camera to shoot and terminal |
| CN105278380A (en) * | 2015-10-30 | 2016-01-27 | 小米科技有限责任公司 | Control method and device of intelligent device |
| CN105389318A (en) * | 2014-09-09 | 2016-03-09 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105797366A (en) * | 2016-03-25 | 2016-07-27 | 中国传媒大学 | Head-wearing type interactive audio game terminal based on sound source location |
| CN105915798A (en) * | 2016-06-02 | 2016-08-31 | 北京小米移动软件有限公司 | Camera control method in video conference and control device thereof |
| WO2016197444A1 (en) * | 2015-06-09 | 2016-12-15 | 中兴通讯股份有限公司 | Method and terminal for achieving shooting |
| CN108012123A (en) * | 2017-12-22 | 2018-05-08 | 蒙城县望槐信息科技有限责任公司 | A kind of video capture method based on sound source position |
| CN108012086A (en) * | 2017-12-22 | 2018-05-08 | 蒙城县望槐信息科技有限责任公司 | A kind of camera control system based on Internet of Things |
| CN108174143A (en) * | 2016-12-07 | 2018-06-15 | 杭州海康威视数字技术股份有限公司 | A kind of monitoring device control method and device |
| CN108293103A (en) * | 2016-01-08 | 2018-07-17 | 微软技术许可有限责任公司 | Enliven spokesman's position detection |
| CN108648416A (en) * | 2018-04-02 | 2018-10-12 | 浙江国视科技有限公司 | Help-asking system in a kind of old man room |
| CN109817225A (en) * | 2019-01-25 | 2019-05-28 | 广州富港万嘉智能科技有限公司 | A kind of location-based meeting automatic record method, electronic equipment and storage medium |
| CN110620852A (en) * | 2019-09-29 | 2019-12-27 | 深圳市旗华科技有限公司 | AI panoramic video conference camera system and working method |
| CN112367473A (en) * | 2021-01-13 | 2021-02-12 | 北京电信易通信息技术股份有限公司 | Rotatable camera device based on voiceprint arrival phase and control method thereof |
| US10951859B2 (en) | 2018-05-30 | 2021-03-16 | Microsoft Technology Licensing, Llc | Videoconferencing device and method |
-
2009
- 2009-05-27 CN CN2009200572838U patent/CN201426153Y/en not_active Expired - Fee Related
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034329A1 (en) * | 2010-09-15 | 2012-03-22 | 中兴通讯股份有限公司 | Method and apparatus for video recording in video calls |
| CN101951492A (en) * | 2010-09-15 | 2011-01-19 | 中兴通讯股份有限公司 | Method and device for recording videos in video call |
| US8866867B2 (en) | 2010-09-15 | 2014-10-21 | Zte Corporation | Method and apparatus for video recording in video calls |
| CN102752573A (en) * | 2011-04-21 | 2012-10-24 | 中兴通讯股份有限公司 | Video communication terminal and video communication method |
| WO2012142793A1 (en) * | 2011-04-21 | 2012-10-26 | 中兴通讯股份有限公司 | Video communication terminal and video communication method |
| CN102752573B (en) * | 2011-04-21 | 2015-04-01 | 中兴通讯股份有限公司 | Video communication terminal and video communication method |
| CN102361508B (en) * | 2011-07-27 | 2014-11-12 | 中国计量学院 | Sound acquisition and amplification circuit of two microphones for judging sound positions |
| CN102361508A (en) * | 2011-07-27 | 2012-02-22 | 中国计量学院 | Sound acquisition and amplification circuit of two microphones for judging sound positions |
| CN103581606B (en) * | 2012-08-09 | 2018-09-07 | 北京维鲸视界科技有限公司 | A kind of multimedia collection device and method |
| CN103581606A (en) * | 2012-08-09 | 2014-02-12 | 北京博威康技术有限公司 | Multimedia collecting device and method |
| CN103841360A (en) * | 2013-12-11 | 2014-06-04 | 三亚中兴软件有限责任公司 | Distributed video conference achieving method and system, video conference terminal and audio and video integrated device |
| CN105389318A (en) * | 2014-09-09 | 2016-03-09 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105389318B (en) * | 2014-09-09 | 2019-09-24 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN104580992A (en) * | 2014-12-31 | 2015-04-29 | 广东欧珀移动通信有限公司 | Control method and mobile terminal |
| CN104811610B (en) * | 2015-04-01 | 2017-11-17 | 广东欧珀移动通信有限公司 | A kind of method and device for controlling camera rotation |
| CN104811610A (en) * | 2015-04-01 | 2015-07-29 | 广东欧珀移动通信有限公司 | Method and device for controlling rotation of camera |
| WO2016197444A1 (en) * | 2015-06-09 | 2016-12-15 | 中兴通讯股份有限公司 | Method and terminal for achieving shooting |
| CN104935819B (en) * | 2015-06-11 | 2018-03-02 | 广东欧珀移动通信有限公司 | One kind control camera image pickup method and terminal |
| CN104935819A (en) * | 2015-06-11 | 2015-09-23 | 广东欧珀移动通信有限公司 | Method for controlling camera to shoot and terminal |
| CN105278380A (en) * | 2015-10-30 | 2016-01-27 | 小米科技有限责任公司 | Control method and device of intelligent device |
| CN105278380B (en) * | 2015-10-30 | 2019-10-01 | 小米科技有限责任公司 | The control method and device of smart machine |
| CN108293103B (en) * | 2016-01-08 | 2021-06-11 | 微软技术许可有限责任公司 | Active speaker location detection |
| CN108293103A (en) * | 2016-01-08 | 2018-07-17 | 微软技术许可有限责任公司 | Enliven spokesman's position detection |
| CN105797366A (en) * | 2016-03-25 | 2016-07-27 | 中国传媒大学 | Head-wearing type interactive audio game terminal based on sound source location |
| CN105915798A (en) * | 2016-06-02 | 2016-08-31 | 北京小米移动软件有限公司 | Camera control method in video conference and control device thereof |
| CN108174143A (en) * | 2016-12-07 | 2018-06-15 | 杭州海康威视数字技术股份有限公司 | A kind of monitoring device control method and device |
| CN108012086A (en) * | 2017-12-22 | 2018-05-08 | 蒙城县望槐信息科技有限责任公司 | A kind of camera control system based on Internet of Things |
| CN108012123A (en) * | 2017-12-22 | 2018-05-08 | 蒙城县望槐信息科技有限责任公司 | A kind of video capture method based on sound source position |
| CN108648416A (en) * | 2018-04-02 | 2018-10-12 | 浙江国视科技有限公司 | Help-asking system in a kind of old man room |
| US10951859B2 (en) | 2018-05-30 | 2021-03-16 | Microsoft Technology Licensing, Llc | Videoconferencing device and method |
| CN109817225A (en) * | 2019-01-25 | 2019-05-28 | 广州富港万嘉智能科技有限公司 | A kind of location-based meeting automatic record method, electronic equipment and storage medium |
| CN110620852A (en) * | 2019-09-29 | 2019-12-27 | 深圳市旗华科技有限公司 | AI panoramic video conference camera system and working method |
| CN112367473A (en) * | 2021-01-13 | 2021-02-12 | 北京电信易通信息技术股份有限公司 | Rotatable camera device based on voiceprint arrival phase and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20120527 |