CN102625077B - Conference recording method, conference photographing device, client and system - Google Patents
Conference recording method, conference photographing device, client and system Download PDFInfo
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- CN102625077B CN102625077B CN201110029615.3A CN201110029615A CN102625077B CN 102625077 B CN102625077 B CN 102625077B CN 201110029615 A CN201110029615 A CN 201110029615A CN 102625077 B CN102625077 B CN 102625077B
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Abstract
The embodiment of the invention discloses a conference recording method which comprises a first step that when receiving a number information-containing control command of requesting permission to speak, a conference photographing device looks up in its internal database the current three-dimensional coordinate of a client corresponding to the number information and acquires the current voice waveform data of a client user corresponding to the number information; a second step that the conference photographing device obtains a rotational angle value by calculating according to the three-dimensional coordinate and determines direction of rotation; and a third step that the conference photographing device controls itself to rotate according to the rotational angle value and the direction of rotation so as to photograph video information of the client user corresponding to the number information, and sends the obtained audio information and video information to a central computer. The embodiment of the invention further discloses the conference photographing device, the client and a system. The conference photographing device, client and system can automatically adjust a shooting angle according to a three-dimensional coordinate to trace and photograph video information of related users and acquire corresponding audio information, and meet the user's requirement of automatic and intelligent recording of a conference.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of minutes method, meeting camera head, client computer and system.
Background technology
Current is that position is fixed for making the camera head of minutes in video conference mostly, it only can take the video information in fixed range, or only under minutes personnel Non-follow control, simple movement up and down can be carried out to take the video information of diverse location or participant in meeting-place.
Along with the progress of science and technology, occurred employing face detection, track up is correlated with the minutes Apparatus and system of video information of participant, but corresponding face detection is comparatively complicated, and it realizes, and difficulty is large, cost is high; Also have and adopt sound tracking technique, when relevant participant makes a speech, can the minutes Apparatus and system of the corresponding video information of track up, but, when there is many people while during sounding, this minutes Apparatus and system is then easily made mistakes, and can not photograph required video information.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of minutes method, meeting camera head, client computer and system are provided, the three-dimensional coordinate of user in meeting-place can be obtained in real time, automatically adjust shooting angle to follow the trail of associated user and to take relevant video information according to three-dimensional coordinate.
In order to solve the problems of the technologies described above, embodiments provide a kind of minutes method, comprising:
When receiving the control command of the request speech comprising number information, search the current residing three-dimensional coordinate of client computer corresponding to described number information therein in the database that meeting camera head stores, and obtain the current sound waveform data of client user corresponding to described number information;
Obtain rotation angle value according to described three-dimensional coordinate computing, determine direction of rotation, according to described rotation angle value and direction of rotation control self to carry out rotations also captured in real-time obtain video information;
The audio-frequency information of the client user current time corresponding to described number information is obtained according to described sound waveform data operation;
The audio-frequency information that the video information obtain shooting and computing obtain sends to central computer.
Wherein, the current residing three-dimensional coordinate of client computer corresponding to described number information is searched therein in the database that described meeting camera head stores, and before obtaining the step of the current sound waveform data of client user corresponding to described number information, comprising:
The sense data of client computer user in real, and computing is carried out to described sense data obtain the three-dimensional coordinate in each moment in user movement process and corresponding sound waveform data;
The three-dimensional coordinate that the computing of meeting camera head real-time reception client computer obtains, corresponding sound waveform data and number information thereof, and be stored in database according to time sequencing with corresponding sound waveform data according to the three-dimensional coordinate that this client computer computing received obtains by the number information of this client computer.
Wherein, also comprise: when receiving the control command of end speech of the client computer corresponding to described number information, meeting camera head stops the rotation, or searches the current residing three-dimensional coordinate of client computer corresponding to particular number information and sound waves graphic data therein in the database stored to obtain the audio-frequency information of the client user corresponding to corresponding video information and described particular number information.
Wherein, also comprise: described meeting camera head detects the three-dimensional coordinate in described camera rotary course in real time, and obtain the angle value in self rotary course according to described three-dimensional coordinate, and when the angle value that it rotates reaches described rotation angle value, control the rotation stopping self.
Wherein, also comprise: client computer detects the control command of user's input in real time, and corresponding control command is sent to meeting camera head, and described control command comprises: the control command of request speech, the control command of end speech.
Wherein, also comprise:
When receiving the control command of the request speech comprising number information, meeting camera head judges the fixed point the checksum location whether client user corresponding to described number information of current shooting reaches default;
When being judged as YES, meeting camera head sends the three-dimensional coordinate of described default fixed point checksum location to the client computer corresponding to described number information;
Described client computer corrects according to the three-dimensional coordinate of the three-dimensional coordinate of described default fixed point checksum location to self current residing position.
Correspondingly, the embodiment of the present invention additionally provides a kind of meeting camera head, comprising:
Picture recording module, for captured in real-time video information;
Video recording control module, passes to communication module for controlling described picture recording module by video information;
Communication module, for three-dimensional coordinate, sound waveform data and number information thereof that at least one client computer computing of real-time reception obtains;
Described communication module is also for receiving the control command of the request speech comprising number information;
Memory module, for according to number information by real-time reception to the three-dimensional coordinate that obtains of respective client computing and sound waves graphic data be stored in database;
Search module, for receive when described communication module comprise number information request speech control command time, in the database that described memory module stores, search the current residing three-dimensional coordinate of client computer corresponding to described number information, and determine that the sound waveform data of the client computer corresponding to described number information be currently received are effective voice data;
Computing module, for search described in basis module searches to three-dimensional coordinate computing obtain rotation angle value and determine direction of rotation, and computing is carried out to the described effective voice data comprising sound waveform data, obtain the audio-frequency information of the client user corresponding to described number information;
Visual angle driver module, for the rotation angle value obtained according to described computing module computing and the direction of rotation determined, controls to rotate described picture recording module to adjust shooting angle;
Described communication module is also for sending to central computer by taking the audio-frequency information that the video information that obtains and computing obtain.
Wherein, also comprise:
Described communication module is also for receiving the control command of the end speech of the client computer corresponding to described number information;
Notification module, during for receiving the control command terminating speech in described communication module, notifies that described visual angle driver module controls to stop the rotation of described meeting camera head; Or
Search described in notice in the database that module stores in described memory module and search the current residing three-dimensional coordinate of client computer corresponding to particular number information to obtain the video information of the client user corresponding to described particular number information, and determine that sound waveform data corresponding to particular number are for effective voice data is to obtain the audio-frequency information of the client user corresponding to described particular number information.
Wherein, also comprise:
Visual angle detection module, for controlling at visual angle driver module to rotate in the process of meeting camera head, the three-dimensional coordinate that real-time detection meeting camera head rotates, and obtain the angle value of meeting camera head rotation, when the angle value that it rotates reaches described rotation angle value, notify that described visual angle driver module stops the rotation described meeting camera head;
Verification judge module, for judge current shooting described number information corresponding to client user whether reach default fixed point checksum location;
Described communication module also for when being judged as YES of described verification judge module, sends the three-dimensional coordinate of described default fixed point checksum location to the client computer corresponding to described number information.
Correspondingly, the embodiment of the present invention additionally provides a kind of client computer, comprising:
Transducer, for the sense data of user in real, described sense data comprises: any one or more in accekeration, angular acceleration values and geomagnetic data;
Computing module, the sense data for obtaining described transducer carries out computing and obtains three-dimensional coordinate in user movement process and corresponding sound waveform data;
Detection module, for detecting the control command of user's input in real time, described control command comprises: the control command of request speech, the control command of end speech;
Wireless communication module, for sending described three-dimensional coordinate and corresponding sound waveform data to meeting camera head, and during for control command that user's input request makes a speech being detected when described detection module, send the control command of described request speech to corresponding meeting camera head; Or send to meeting camera head the control command terminating speech when described detection module detects the control command that user's end of input makes a speech; Also for sending the three-dimensional coordinate that local terminal computing obtains at least one opposite end client computer, and receive the three-dimensional coordinate of at least one opposite end client computer.
Wherein, also comprise:
Described wireless communication module is also for receiving the three-dimensional coordinate of the fixed point checksum location preset that meeting camera head sends;
Correction module, corrects for the three-dimensional coordinate of three-dimensional coordinate to current residing position according to described default fixed point checksum location.
Correspondingly, the embodiment of the present invention additionally provides a kind of minutes system, comprising: the meeting camera head as described in any one of claim 8-10, central computer and at least one client computer as described in claim 11 or 12.
Implement the embodiment of the present invention, there is following beneficial effect:
By adopting the multiple transducer respectively in real time three-dimensional coordinate of sensing relative users in meeting-place and sound waves graphic data, camera head is respectively according to the corresponding described three-dimensional coordinate of number information corresponding stored and sound waves graphic data, when receiving the control command of request speech, camera head passes through simply to search the position of user in meeting-place that described number information just can be found corresponding according to number information, thus calculating anglec of rotation determination direction of rotation rotates, automatically the shooting of relative users is followed the tracks of, the audio-frequency information of user is also obtained by sound waveform data syn-chronization, implementation is simple, antijamming capability is strong, the automation of user can be met preferably, intelligently carry out the demand of the minutes comprising video and audio recording, in addition, also by the calibration device in meeting-place or fixing checking mark etc., the drift of the three-dimensional coordinate of user is corrected, improve the precision of camera head automatic shooting.
Accompanying drawing explanation
Fig. 1 is the structure composition schematic diagram of a kind of minutes system of the embodiment of the present invention;
Fig. 2 is the structure composition schematic diagram of a kind of client computer of the embodiment of the present invention;
Fig. 3 is the structure composition schematic diagram of a kind of meeting camera head of the embodiment of the present invention;
Fig. 4 is the first embodiment schematic flow sheet of a kind of minutes method of the present invention;
Fig. 5 is the second embodiment schematic flow sheet of a kind of minutes method of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only 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.
Refer to Fig. 1, it is the structure composition schematic diagram of a kind of minutes system of the embodiment of the present invention, the described minutes system of the present embodiment comprises: meeting camera head 1, central computer 2 and multiple client computer (only label being carried out to one in figure), the structure of each client computer, function and implementation are all identical, be described for client computer 3 in the present embodiment, other client computer all do same analysis, are not repeated herein.
Described client computer 3 can be provided to user when user enters meeting-place, and described client computer can be placed in front by user, is arranged in the positions such as place of cheek side, throat.Unique numbering is arranged to described client computer 3, to distinguish with other client computer.
Concrete, as shown in Figure 2, be the structure composition schematic diagram of a kind of client computer of the embodiment of the present invention, described client computer 3 specifically comprises:
Transducer 31, for the sense data of user in real, described sense data comprises: any one or more in accekeration, angular acceleration values and geomagnetic data;
Computing module 32, the sense data for obtaining described transducer 31 carries out computing and obtains three-dimensional coordinate in user movement process and corresponding sound waveform data;
Wireless communication module 33, for sending described three-dimensional coordinate and corresponding sound waveform data to meeting camera head 1;
Concrete, described transducer can comprise any one or more in acceleration transducer, gyroscope and magnetometer.After starting described client computer 3, described transducer 31 just can any one or more the sense data that comprise in accekeration, angular acceleration values and geomagnetic data of the user of Real-time Obtaining corresponding to it when moving; And obtain the sense datas of sounding position in vibration processes such as user's cheek simultaneously.Described computing module 32 carries out data operation according to any one or more the binding time value in described accekeration, angular acceleration values and geomagnetic data, obtain the data after computing and comprise the three-dimensional coordinate that three-dimensional coordinate in user's moving process and relevant sounding position produce as vocal cord vibration, then according to the amplitude of variation of three-dimensional coordinate under adjacent moment and frequency, the data after computing are separated, obtain the three-dimensional coordinate in user movement process and corresponding sound waveform data.
In addition, described time value calculates from the described client computer 3 of startup.While calculating corresponding three-dimensional coordinate, described wireless communication module 33 sends to described meeting camera head 1 after described three-dimensional coordinate and sound waves graphic data being encoded by wireless transmission methods such as wireless short-range 2.4G technology, bluetooth or purple honeybee Zigbee;
It should be noted that, the coordinate of position, meeting porch, as the origin of coordinates of the three-dimensional coordinate in computing user moving process, is set to the origin of coordinates of computing by position when starting described client computer 3 usually.In addition, in order to the face location making meeting camera head 1 better can photograph user, can when starting described client computer 3, carry out the shooting debugging of meeting camera head 1, such as, if described client computer 3 is hung over front by user, then adjusting actual photographed position that described meeting camera head 1 takes described client computer 3 is the face of corresponding this user of angle shot of moving up, and the numbering of this actual photographed angle and described client computer 3 is kept in the database of meeting camera head 1 internal storage so that at supervise shooting phase time, described meeting camera head 1 can according to the face of this angle shot to respective client end subscriber.
Further, as shown in Figure 2, described client computer 3 also comprises:
Detection module 34, for detecting the control command of user's input in real time, described control command comprises: the control command of request speech, the control command of end speech.
Described wireless communication module 33 is also for control command that user's input request makes a speech being detected during when described detection module, send the control command of described request speech to described meeting camera head 1; Or send to described meeting camera head 1 control command terminating speech when described detection module 34 detects the control command that user's end of input makes a speech; Also for the opposite end number information according to its storage inside, to the three-dimensional coordinate that at least one opposite end client computer transmission local terminal computing obtains, and receive the three-dimensional coordinate of opposite end client computer;
The mode that described detection module 34 can adopt detection action to arrange, detects the control command of user's input in real time.Specific implementation process is: preset action default data base in described client computer 3, described action default data base comprises action agreement (track characteristics of all kinds of actions that statistics obtains) and arranges control command one to one with described action, when user moves according to client computer 3 described in agreement action control, such as knocking described client computer 3 makes it produce vibration, transducer 31 in described client computer 3 just senses and obtains this vibration, described computing module 32 is also for carrying out computing to described vibration data, obtain oscillation trajectory and identify track characteristic, in described action default data base, the control command of corresponding control command as request speech is searched according to described track characteristic, terminate the control command etc. of speech.
In the use procedure of described client computer 3, described wireless communication module 33 is also for receiving the three-dimensional coordinate of the fixed point checksum location preset that meeting camera head 1 sends in real time; Further, as shown in Figure 2, described client computer 3 also comprises: correction module 35, corrects for the three-dimensional coordinate of three-dimensional coordinate to current residing position according to described default fixed point checksum location.Namely the three-dimensional coordinate that current operation module 32 computing obtains is modified as the three-dimensional coordinate of the fixed point checksum location preset that described wireless communication module 33 receives by described correction module 35, and sending notification instruction to described computing module 32, described computing module 32 carries out the computing of new three-dimensional coordinate according to current amended three-dimensional coordinate.Wherein, described default fixed point checksum location can be some objects that coordinate is fixing in meeting-place, as a specific width is drawn, and fixing seat, or be that coordinate is fixing in meeting-place, by the radio positioner that can sense described client computer 3 in closely pre-set.In addition, the three-dimensional coordinate of at least one opposite end client computer that described correction module 35 also can receive according to described wireless communication module 33, as reference by location, carries out the correction of the three-dimensional coordinate that local terminal calculates.
It should be noted that, the computing module 32 in described client computer 3, checking module 34 and correction module 35 can be built in a single-chip microcomputer, are completed the corresponding function of each module by described single-chip microcomputer.
Further, then refer to Fig. 3, be the structure composition schematic diagram of a kind of meeting camera head of the embodiment of the present invention, described meeting camera head 1 comprises:
Picture recording module 11, for captured in real-time video information; Described picture recording module 11, after described meeting camera head 1 startup optimization, is in shooting operating state always, obtains the corresponding video information in meeting-place, and is controlled picture recording module 11 by video recording control module 19 video information is passed to communication module 12.
Communication module 12, for the number information of the client computer corresponding to three-dimensional coordinate, sound waveform data and corresponding three-dimensional coordinate that All Clients computing in real-time reception native system obtains;
Concrete, described communication module 12 can comprise one with the wireless communication unit 121 of each client communication and the communication unit 122 that carries out communicating with central computer 2; The wireless communication unit 121 of described communication module 12 matches with the wireless communication module 33 of described client computer 3, it is identical with the encoding and decoding rule of described client computer 3 to the encoding and decoding rule of transmission data, for three-dimensional coordinate, sound waveform data and number information thereof that real-time reception All Clients sends separately; The communication unit 122 of described communication module 12 is connected with described central computer 2, realizes the wired or wireless connections with described central computer 2.
Memory module 13, for according to number information by real-time reception to the three-dimensional coordinate that obtains of respective client computing and sound waves graphic data be stored in database;
Concrete, described memory module 13 is according to time sequencing, under the catalogue that the three-dimensional coordinate received and sound waves graphic data are stored in corresponding to described number information, so that when receiving the control command of the request speech that a certain client computer sends, can find according to number information the acoustic information that the current residing three-dimensional coordinate union of described client computer obtains its respective user.
Further, as shown in Figure 3, described meeting camera head 1 also comprises:
Described communication module 12 is also for receiving the control command of the request speech comprising number information;
Search module 14, for receive when described communication module 12 comprise number information request speech control command time, in the database that described memory module 13 stores, search the current residing three-dimensional coordinate of client computer corresponding to described number information, and determine that the sound waveform data of the client computer corresponding to described number information be currently received are effective voice data;
Computing module 15, the three-dimensional coordinate computing found for searching module 14 described in basis obtains rotation angle value and determines direction of rotation, and computing is carried out to the described effective voice data comprising sound waveform data, obtain the audio-frequency information of the client user corresponding to described number information;
Visual angle driver module 16, for the rotation angle value obtained according to the computing of described computing module 15 and the direction of rotation determined, controls to rotate described picture recording module 11 to adjust shooting angle;
Described communication module 12 is also for sending to described central computer 2 by wireless or wire transmission mode by taking the audio-frequency information that the video information that obtains and computing obtain by described communication unit 122.
Concrete, described meeting camera head 1 also receives the control command of the request speech that described client computer 3 sends by described communication module 12 or terminates the control command of speech; The control command that described communication module 12 receives corresponding request speech receives according to time sequencing, when multiple client computer sends the control command of corresponding request speech, described communication module 12 only filters out the control command of the request speech of the respective client received at first, and before the control command receiving the end speech that this client computer sends, the request speech control command that other users send is not carried out as operational processes such as decodings.
When the control command that the request comprising the number information of described client computer 3 that the described wireless communication unit 121 of described communication module 12 receives the transmission of described client computer 3 is made a speech, described searching in the database stored in module 14 to described memory module 13 searches the three-dimensional coordinate residing for described client computer 3 current time value corresponding to described number information, and determine that the sound waveform data of the client computer corresponding to described number information be currently received are effective voice data, described computing module 15 obtains rotation angle value according to described three-dimensional coordinate computing, determine direction of rotation, and obtain audio-frequency information according to the sound waveform data operation of the current received described client computer 3 of communication module 12.
Certainly, described client computer 3 also can according to the sense data of sounding position when sounding vibrates such as the cheek sides of the user sensed, directly calculate voice data, and this voice data is sent to described meeting camera head 1, described meeting camera head 1 directly determines that the audio-frequency information corresponding to corresponding number information is effective audio-frequency information, and this effective audio-frequency information and corresponding video information synchronized transmission are carried out record to central computer 2 stores.
Described visual angle driver module 16 is according to described rotation angle value and the direction of rotation determined, control the camera of the described picture recording module 11 of rotation to adjust shooting angle, simultaneously the described communication unit 122 of described communication module 12 sends to described central computer 2 by taking the video information obtained, and by the audio-frequency information synchronized transmission that calculates to described central computer 2.Wherein, the computing of the described anglec of rotation realizes by the mode of searching, concrete, database can be pre-set, the three-dimensional coordinate of each position in current meeting-place and the anglec of rotation of the meeting camera head 1 corresponding with the three-dimensional coordinate of each position is stored in described database, when obtaining the three-dimensional coordinate of the client computer corresponding to corresponding numbering in meeting-place, just the corresponding anglec of rotation can be found in the database.
Further, as shown in Figure 3, described meeting camera head 1 also comprises:
Notification module, during for receiving the control command terminating speech in described communication module 12, notifies that described visual angle driver module 16 controls to stop the rotation of described meeting camera head; Or
Search described in notice in the database that module 14 stores in described memory module 13 and search the current residing three-dimensional coordinate of client computer corresponding to particular number information and sound waves graphic data, to obtain the audio-frequency information of the client user corresponding to corresponding video information and described particular number information.
When described communication module 12 receives the control command of the end speech that described client computer 3 sends, described notification module notifies that described visual angle driver module 16 controls to stop described meeting camera head 1 to rotate, or search module 14 described in notification module notice and search client user corresponding to particular number information residing three-dimensional coordinate as current in host, and determine that the sound waveform data corresponding to particular number are effective voice data, the computing of described computing module 15 obtains rotation angle value, the audio-frequency information of direction of rotation and the client user current time corresponding to described particular number information, described visual angle driver module 16 controls described meeting camera head 1 and carries out the corresponding video information of rotary taking according to rotation angle value and direction of rotation, central computer 2 as described in the current video information as host and audio-frequency information to be sent to by wireless or wired mode by the described communication unit 122 of described communication module 12.
Afterwards, when again receiving the control command that the new request comprising number information is made a speech, re-start searching of the three-dimensional coordinate of the client computer of corresponding number information, the computing of the anglec of rotation and the determination in direction, to obtain the corresponding video information of new user, and using the sound waveform data of the new user received as effective voice data to obtain the audio-frequency information of this user.
Further, as shown in Figure 3, described meeting camera head 1 also comprises:
Visual angle detection module 17, adjust in the process of shooting angle for controlling to rotate meeting camera head 1 at visual angle driver module 16, the three-dimensional coordinate that real-time detection meeting camera head 1 rotates, and obtain the angle value of meeting camera head rotation, when the angle value that it rotates reaches described rotation angle value, notify that described visual angle driver module 16 stops the rotation described meeting camera head;
Verification judge module 18, for judge current shooting described number information corresponding to client user whether reach default fixed point checksum location;
Described communication module 12 also for when being judged as YES of described verification judge module 18, sends the three-dimensional coordinate of described default fixed point checksum location to the client computer corresponding to described number information by described wireless communication unit 121.
Concrete, described visual angle detection module 17 can form three-dimensional values parts with grating or other rotational potentiometers, and the single-chip microcomputer of inside calculates the anglec of rotation in corresponding meeting camera head 1 rotary course to detection data.
Carrying out rotating to adjust shooting angle at described visual angle driver module 16 according to the anglec of rotation takes in the process of the video information corresponding to described client computer 3, described visual angle detection module 17 detects the three-dimensional coordinate that meeting camera head 1 rotates in real time, and obtains the angle value of meeting camera head 1 rotation; When the angle value that it rotates reaches the rotation angle value that the computing of described computing module 15 obtains, described visual angle detection module 17 sends halt instruction and notifies that described visual angle driver module 16 stops the rotation of described meeting camera head.
When moving when described client computer 3, described communication module 12 can get the three-dimensional coordinate of new described client computer 3, now, described module 13 of searching just can find new three-dimensional coordinate, described computing module 15 is according to the described new three-dimensional coordinate searched module 14 and find, re-start the determination of anglec of rotation computing and direction of rotation, described visual angle driver module 16 carries out existing rotary manipulation again, to realize the video information of user corresponding to client computer 3 described in track up.And real-time corresponding video information and audio-frequency information are sent to described central computer 2.
It should be noted that, searching module 14, computing module 15, visual angle driver module 16, notification module, visual angle detection module 17 and verifying judge module 18 in described meeting camera head 1 can be built in a single-chip microcomputer, is completed the corresponding function of each module by described single-chip microcomputer.
Described central computer 2 stores corresponding described meeting camera head 1 and takes the video information and the synchronous audio-frequency information obtained that obtain.Certainly, host is also by the corresponding number information of each client computer in the meeting-place of display in described central computer 2, select one of them to number, the described number information that host selects is sent to meeting camera head 1 by described central computer 2, described meeting camera head 1 initiatively carries out searching of three-dimensional coordinate corresponding to corresponding number information according to this number information, and the computing of the anglec of rotation and the determination of direction of rotation, thus accurately find the client user corresponding to the number information selected by host, obtain relevant video information and audio-frequency information.
Below the cooperation relation between each functional module in each device in the minutes system of the present embodiment and system is described.
Client computer is provided to corresponding participant, and all client computer are wirelessly connected with described meeting camera head 1.For client computer 3, described client computer 3 is by the sense data of described transducer 31 user in real, the sense data of acquisition sends to described computing module 32 to carry out computing by described transducer 31, and the data that computing obtains by described computing module 32 are passed through wireless communication module 33 and sent to meeting camera head; Described client computer 3 detects the control command of user's input in real time by detection module 34, and passes through wireless communication module 33 and send the control command of described request speech to corresponding meeting camera head 1 or terminate the control command of speech.The three-dimensional coordinate of three-dimensional coordinate to current residing position of the fixed point checksum location preset that correction module 35 receives according to wireless communication module 33 corrects.
Meeting camera head 1 is arranged on meeting-place specific location, when start up system carries out minutes, the picture recording module 11 of meeting camera head 1 is just in shooting state, and is controlled described picture recording module 11 by video recording control module 19 video information is passed to communication module 12.Wireless communication unit 121 in communication module 12 receives the instruction and data of each client computer in meeting-place, search module 14 and search corresponding exercise data for computing module 15 computing determination direction of rotation according to the instruction that described communication module 12 receives, union obtains audio-frequency information, the camera that visual angle driver module 16 controls picture recording module 11 according to the rotation side that computing module 15 is determined rotates, picture recording module 11 correspondingly obtains video information, and the audio-frequency information obtained with computing module 15 before by communication unit 122 synchronized transmission of communication module 12 to central computer 2.Visual angle driver module 16 is in the process controlling picture recording module 11 rotation, when visual angle detection module 17 detects that the angle value that the camera of picture recording module 11 rotates reaches determined rotation angle value, visual angle driver module 16 stops the rotation the camera of recording apparatus 11.
Or in the control command of the end speech that notification module receives according to communication module 12, notice visual angle driver module 16 controls the rotation stopping picture recording module 11; Or notice searches the exercise data searching the client computer corresponding to particular number information in the database that module 14 stores in memory module 13, and determined the anglec of rotation of the user of shooting particular number by computing module 15, union obtains corresponding audio-frequency information.Visual angle driver module 16 determines to take according to computing module 15 information that the anglec of rotation of user of particular number and visual angle detection module 17 detect again, control picture recording module 11 to rotate, the video information of the user of particular number such as shooting host etc., and by communication unit 122 by the video information of the user of this particular number and audio-frequency information synchronized transmission to central computer 2.
When verifying the client user corresponding to described number information that judge module 18 detects current shooting and reaching default fixed point checksum location, sent the three-dimensional coordinate of described default fixed point checksum location to the client computer corresponding to described number information by the wireless communication unit 121 of communication module 12.
Central computer 2 is mainly used in recording the video information, audio-frequency information etc. that store and sended over by meeting camera head 1 in conference process, calls check for corresponding personnel.
Known by the description of above-described embodiment, the present invention has the following advantages:
By adopting the multiple transducer respectively in real time three-dimensional coordinate of sensing relative users in meeting-place and sound waves graphic data, camera head is respectively according to the corresponding described three-dimensional coordinate of number information corresponding stored, when receiving the control command of request speech, camera head passes through simply to search the position of user in meeting-place that described number information just can be found corresponding according to number information, thus calculating anglec of rotation determination direction of rotation rotates, automatically the shooting of relative users is followed the tracks of, the audio-frequency information of user can also be obtained according to the sound waveform data syn-chronization of this user be currently received, implementation is simple, antijamming capability is strong, the automation of user can be met preferably, intelligently carry out the demand of the minutes comprising video and audio recording, in addition, also by the calibration device in meeting-place or fixing checking mark etc., the drift of the three-dimensional coordinate of user is corrected, improve the precision of camera head automatic shooting.
Below a kind of minutes method of the present invention is described.
Referring to Fig. 4, is the first embodiment schematic flow sheet of a kind of minutes method of the present invention; The method comprises:
S401: when receiving the control command of the request speech comprising number information, search the current residing three-dimensional coordinate of client computer corresponding to described number information therein in the database that meeting camera head stores, and obtain the current sound waveform data of client user corresponding to described number information;
Concrete, the step that described meeting camera head stores the database of the coordinate data obtaining each client computer in meeting-place therein comprises:
The sense data of each client computer (comprising the client computer of specific user as host) its respective user of Real-time Obtaining, described sense data carried out that computing obtains in user movement process each time inscribe, comprise the three-dimensional coordinate that three-dimensional coordinate in user's moving process and relevant sounding position produce as vocal cord vibration, wherein, described sense data comprises: the sense datas of sounding position in vibration processes such as the sense data in user's moving process and user's cheek, specifically comprise any one or more in accekeration, angular acceleration values and geomagnetic data.The respective three-dimensional coordinate that computing obtains by each client computer respectively and number information send to meeting camera head by communication;
The calculating process of three-dimensional coordinate and sound waves graphic data is: according to described accekeration, any one or more binding time value in angular acceleration values and geomagnetic data carries out data operation, obtain the data comprising the three-dimensional coordinate that three-dimensional coordinate in moving process and coupled vibration produce after computing, then according to the amplitude of variation of three-dimensional coordinate under adjacent moment and frequency, the data after computing are separated, thus the three-dimensional coordinate obtained respectively in user movement process and corresponding sound waveform data, sound waveform data are wherein that the three-dimensional coordinate that the coupled vibration obtained according to computing produces obtains.
The three-dimensional coordinate that each the client computer computing of meeting camera head real-time reception obtains, corresponding sound waveform data and number information thereof, and according to the number information of this client computer, each three-dimensional coordinate that this client computer computing received obtains is stored in database according to time sequencing.
After described S401 receives the control command of corresponding request speech, according to time sequencing, the control command that the multiple client computer received send corresponding request speech is screened, described S401 only filters out the control command of the request speech of the respective client received at first, and before the control command receiving the end speech that this client computer sends, the request speech control command that other users send is not carried out as operational processes such as decodings.
S402: meeting camera head obtains rotation angle value according to described three-dimensional coordinate computing, determines direction of rotation, controls self to carry out rotation according to described rotation angle value and direction of rotation and captured in real-time obtains video information;
Concrete, the camera of described meeting camera head is in the operating state of shooting always, when described S402 obtains rotation angle value according to described three-dimensional coordinate computing, after determining direction of rotation, needs to select meeting camera head to continue the video needed for shooting.
The computing of the described anglec of rotation realizes by the mode of searching, concrete, database can be pre-set, the three-dimensional coordinate of each position in current meeting-place and the anglec of rotation of the meeting camera head corresponding with the three-dimensional coordinate of each position is stored in described database, when obtaining the three-dimensional coordinate of the client computer corresponding to corresponding numbering in meeting-place, just the corresponding anglec of rotation can be found in the database.
When rotating to described direction of rotation according to rotation angle value, meeting camera head also can detect the three-dimensional coordinate in described camera rotary course in real time, and obtain the angle value in self rotary course according to described three-dimensional coordinate, and when the angle value that it rotates reaches described rotation angle value, control the rotation stopping self.
When the client user corresponding to described number information moves, described S401 can find new three-dimensional coordinate, described S402 can calculate new rotation angle value and determine direction of rotation, and described S403 then again carries out rotation according to described direction of rotation and the anglec of rotation and controls.
S403: the audio-frequency information obtaining the client user current time corresponding to described number information according to described sound waveform data operation;
Concrete, for the sound waveform data of each client computer received, meeting camera head is not saved in corresponding database, only when S401 is according to the control command comprising the request speech of number information received, determine that the user corresponding to a certain number information is after spokesman, S403 determines that the sound waveform data corresponding to number information of this spokesman that current time receives are effective voice data, obtains the audio-frequency information of the client user current time corresponding to described number information according to described sound waveform data operation;
The process that client computer obtains sound waveform data is specially: the position such as cheek side, throat described transducer being placed in user, when user's sounding, its vocal cords can vibrate accordingly, described transducer can sense the vibration of user's vocal cords, thus corresponding vibration-sensing data when obtaining vocal cord vibration; Adopt current various analog-to-digital converting modules to carry out the conversion of corresponding analogue data to numerical data to the described motion sensing data obtained, obtain digital vibration signal; Carry out obtaining digital audio signal after data fusion computing obtains the data such as amplitude and frequency to described digital vibration signal; Just the good audio-frequency information of tonequality can be obtained after shaping, filtering, denoising are carried out to described digital audio signal;
S404: the audio-frequency information that the video information obtain shooting and computing obtain sends to central computer.
Concrete, described S404 sends to central computer, so that described central computer carries out data storage realize minutes by wire transmission mode or wireless transmission method by taking the audio-frequency information that the video information that obtains and computing obtain.
In addition, client computer also can according to the sense data of sounding position when sounding vibrates such as the cheek sides of the user sensed, directly calculate voice data, and this voice data is sent to meeting camera head, meeting camera head directly determines that in S403 the audio-frequency information corresponding to corresponding number information is effective audio-frequency information, and this effective audio-frequency information and corresponding video information synchronized transmission are carried out record to central computer stores.
Known by the description of above-described embodiment, the present invention has the following advantages:
By adopting the multiple transducer respectively in real time three-dimensional coordinate of sensing relative users in meeting-place and sound waves graphic data, camera head is respectively according to the corresponding described three-dimensional coordinate of number information corresponding stored and sound waves graphic data, when receiving the control command of request speech, camera head passes through simply to search the position of user in meeting-place that described number information just can be found corresponding according to number information, thus calculating anglec of rotation determination direction of rotation rotates, automatically the shooting of relative users is followed the tracks of, the audio-frequency information of user is also obtained by sound waveform data syn-chronization, implementation is simple, antijamming capability is strong, the automation of user can be met preferably, intelligently carry out the demand of the minutes comprising video and audio recording, in addition, also by the calibration device in meeting-place or fixing checking mark etc., the drift of the three-dimensional coordinate of user is corrected, improve the precision of camera head automatic shooting.
Refer to Fig. 5 again, be the second embodiment schematic flow sheet of a kind of minutes method of the present invention, the method comprises:
S501: client computer detects the control command of user's input in real time, and described control command comprises: the control command of request speech, the control command of end speech;
Concrete, whether client computer detects user in real time and refers to by the input mode input controls such as client computer that knock of agreement.
S502: when the control command of user's input is the control command of request speech, the control command that described request is made a speech is sent to meeting camera head by described client computer;
S503: when receiving the control command of the request speech comprising number information, search the current residing three-dimensional coordinate of client computer corresponding to described number information therein in the database that meeting camera head stores, and obtain the current sound waveform data of client user corresponding to described number information;
Concrete, the step that described meeting camera head stores the database of the coordinate data obtaining each client computer in meeting-place therein comprises:
The sense data of each its respective user of client computer Real-time Obtaining, each three-dimensional coordinate that computing obtains in user movement process is carried out to described sense data, wherein, described sense data comprises: any one or more in accekeration, angular acceleration values and geomagnetic data, and each client computer three-dimensional coordinate computing obtained, corresponding sound waveform data and number information send to meeting camera head by communication;
The three-dimensional coordinate that each the client computer computing of meeting camera head real-time reception obtains, corresponding sound waveform data and number information thereof, and according to the number information of this client computer, each three-dimensional coordinate that this client computer computing received obtains is stored in database according to time sequencing.
S504: meeting camera head obtains rotation angle value according to described three-dimensional coordinate computing, determine direction of rotation, according to described rotation angle value and direction of rotation control self to carry out rotations also captured in real-time obtain video information, obtain the audio-frequency information of the client user current time corresponding to described number information according to described sound waveform data operation;
Concrete, in rotary course, described meeting camera head detects the three-dimensional coordinate in described camera rotary course in real time, and obtains the angle value in self rotary course according to described coordinate, when the angle value that it rotates reaches described rotation angle value, control the rotation stopping self.
For the sound waveform data of each client computer received, meeting camera head is not saved in corresponding database, only when S502 is according to the control command comprising the request speech of number information received, determine that the user corresponding to a certain number information is after spokesman, S504 determines that the sound waveform data corresponding to number information of this spokesman that current time receives are effective voice data, obtains the audio-frequency information of the client user current time corresponding to described number information according to described sound waveform data operation.
S505: the audio-frequency information that the video information obtain shooting and computing obtain sends to central computer.
S511: when receiving the control command of the request speech comprising number information, meeting camera head judges the fixed point the checksum location whether client user corresponding to described number information of current shooting reaches default;
S512: when being judged as YES, meeting camera head sends the three-dimensional coordinate of described default fixed point checksum location to the client computer corresponding to described number information;
S513: described client computer corrects according to the three-dimensional coordinate of the three-dimensional coordinate of described default fixed point checksum location to self current residing position;
Concrete, the three-dimensional coordinate of the fixed point checksum location preset received described in the three-dimensional coordinate that current client computing obtains is modified as by described S513, and the computing of new three-dimensional coordinate is carried out according to current amended three-dimensional coordinate.Wherein, described default fixed point checksum location can be fix some in meeting-place as a specific width picture, fixing seat, or the radio positioner that can sense client computer in closely of setting.
In addition, also by the three-dimensional coordinate of other client computer that receives as reference by location, the three-dimensional coordinate that local terminal calculates is corrected.
S520: when receiving the control command of end speech of the client computer corresponding to described number information, meeting camera head stops the rotation;
Certainly, S520 also can perform following steps: search in the database that meeting camera head stores therein the current residing three-dimensional coordinate of client computer (as host) corresponding to particular number information and sound waves graphic data with obtain corresponding user (as host) video information and as described in the audio-frequency information of client user (as host) corresponding to particular number information.After performing S520, the described meeting camera head wait-receiving mode control command comprising the request speech of number information next time, and when receiving the control command of the request speech comprising number information, meeting camera head performs corresponding steps from S503.
Known by the description of above-described embodiment, the present invention has the following advantages:
By adopting the multiple transducer respectively in real time three-dimensional coordinate of sensing relative users in meeting-place and sound waves graphic data, camera head is respectively according to the corresponding described three-dimensional coordinate of number information corresponding stored and sound waves graphic data, when receiving the control command of request speech, camera head passes through simply to search the position of user in meeting-place that described number information just can be found corresponding according to number information, thus calculating anglec of rotation determination direction of rotation rotates, automatically the shooting of relative users is followed the tracks of, the audio-frequency information of user is also obtained by sound waveform data syn-chronization, implementation is simple, antijamming capability is strong, the automation of user can be met preferably, intelligently carry out the demand of the minutes comprising video and audio recording, in addition, also by the calibration device in meeting-place or fixing checking mark etc., the drift of the three-dimensional coordinate of user is corrected, improve the precision of camera head automatic shooting.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (11)
1. a minutes method, is characterized in that, comprising:
The sense data of client computer user in real, and computing is carried out to described sense data obtain the three-dimensional coordinate in each moment in user movement process and corresponding sound waveform data;
The three-dimensional coordinate that the computing of described meeting camera head real-time reception client computer obtains, corresponding sound waveform data and number information thereof, and be stored in database with corresponding sound waveform data according to time sequencing according to the three-dimensional coordinate that this client computer computing received obtains by the number information of this client computer;
When receiving the control command of the request speech comprising number information, search the current residing three-dimensional coordinate of client computer corresponding to described number information therein in the database that described meeting camera head stores, and obtain the current sound waveform data of client user corresponding to described number information;
Obtain rotation angle value according to described three-dimensional coordinate computing, determine direction of rotation, according to described rotation angle value and direction of rotation control self to carry out rotations also captured in real-time obtain video information;
The audio-frequency information of the client user current time corresponding to described number information is obtained according to described sound waveform data operation;
The audio-frequency information that the video information obtain shooting and computing obtain sends to central computer.
2. the method for claim 1, is characterized in that, also comprises:
When receiving the control command of end speech of the client computer corresponding to described number information, meeting camera head stops the rotation, or searches the current residing three-dimensional coordinate of client computer corresponding to particular number information and sound waves graphic data therein in the database stored to obtain the audio-frequency information of the client user corresponding to corresponding video information and described particular number information.
3. method as claimed in claim 2, is characterized in that, also comprise:
Described meeting camera head detects the three-dimensional coordinate in described camera rotary course in real time, and obtains the angle value in self rotary course according to described three-dimensional coordinate, and when the angle value that it rotates reaches described rotation angle value, controls the rotation stopping self.
4. method as claimed in claim 3, is characterized in that, also comprise:
Client computer detects the control command of user's input in real time, and corresponding control command is sent to meeting camera head, and described control command comprises: the control command of request speech, the control command of end speech.
5. method as claimed in claim 4, is characterized in that, also comprise:
When receiving the control command of the request speech comprising number information, meeting camera head judges the fixed point the checksum location whether client user corresponding to described number information of current shooting reaches default;
When being judged as YES, meeting camera head sends the three-dimensional coordinate of described default fixed point checksum location to the client computer corresponding to described number information;
Described client computer corrects according to the three-dimensional coordinate of the three-dimensional coordinate of described default fixed point checksum location to self current residing position.
6. a meeting camera head, is characterized in that, comprising:
Picture recording module, for captured in real-time video information;
Video recording control module, passes to communication module for controlling described picture recording module by video information;
Communication module, carries out computing at least one client computer of real-time reception according to the sense data got and obtains the three-dimensional coordinate in each moment in user movement process, sound waveform data and number information thereof;
Described communication module is also for receiving the control command of the request speech comprising number information;
Memory module, for according to number information by real-time reception to the three-dimensional coordinate that obtains of respective client computing and sound waves graphic data be stored in database;
Search module, for receive when described communication module comprise number information request speech control command time, in the database that described memory module stores, search the current residing three-dimensional coordinate of client computer corresponding to described number information, and determine that the sound waveform data of the client computer corresponding to described number information be currently received are effective voice data;
Computing module, for search described in basis module searches to three-dimensional coordinate computing obtain rotation angle value and determine direction of rotation, and computing is carried out to the described effective voice data comprising sound waveform data, obtain the audio-frequency information of the client user corresponding to described number information;
Visual angle driver module, for the rotation angle value obtained according to described computing module computing and the direction of rotation determined, controls to rotate described picture recording module to adjust shooting angle;
Described communication module is also for sending to central computer by taking the audio-frequency information that the video information that obtains and computing obtain.
7. meeting camera head as claimed in claim 6, is characterized in that, also comprise:
Described communication module is also for receiving the control command of the end speech of the client computer corresponding to described number information;
Notification module, during for receiving the control command terminating speech in described communication module, notifies that described visual angle driver module controls to stop the rotation of described meeting camera head; Or
Search described in notice in the database that module stores in described memory module and search the current residing three-dimensional coordinate of client computer corresponding to particular number information to obtain the video information of the client user corresponding to described particular number information, and determine that sound waveform data corresponding to particular number are for effective voice data is to obtain the audio-frequency information of the client user corresponding to described particular number information.
8. meeting camera head as claimed in claim 7, is characterized in that, also comprise:
Visual angle detection module, for controlling at visual angle driver module to rotate in the process of meeting camera head, the three-dimensional coordinate that real-time detection meeting camera head rotates, and obtain the angle value of meeting camera head rotation, when the angle value that it rotates reaches described rotation angle value, notify that described visual angle driver module stops the rotation described picture recording module;
Verification judge module, for judge current shooting described number information corresponding to client user whether reach default fixed point checksum location;
Described communication module also for when being judged as YES of described verification judge module, sends the three-dimensional coordinate of described default fixed point checksum location to the client computer corresponding to described number information.
9. a client computer, is characterized in that, comprising:
Transducer, for the sense data of user in real, described sense data comprises: any one or more in accekeration, angular acceleration values and geomagnetic data;
Computing module, the sense data for obtaining described transducer carries out computing and obtains three-dimensional coordinate in user movement process and corresponding sound waveform data;
Detection module, for detecting the control command of user's input in real time, described control command comprises: the control command of request speech, the control command of end speech;
Wireless communication module, for sending described three-dimensional coordinate and corresponding sound waveform data to meeting camera head, and during for control command that user's input request makes a speech being detected when described detection module, the control command of described request speech is sent to corresponding meeting camera head, described control command comprises the number information of described client computer, to make described meeting camera head when receiving the control command of the request speech comprising number information, the current residing three-dimensional coordinate of client computer corresponding to described number information is searched therein in the database stored, and obtain the current sound waveform data of client user corresponding to described number information, rotation angle value is obtained according to described three-dimensional coordinate computing, determine direction of rotation, according to described rotation angle value and direction of rotation control self to carry out rotations also captured in real-time obtain video information, the audio-frequency information of the client user current time corresponding to described number information is obtained according to described sound waveform data operation, the audio-frequency information that the video information obtain shooting and computing obtain sends to central computer, or send to meeting camera head the control command terminating speech when described detection module detects the control command that user's end of input makes a speech, also for sending the three-dimensional coordinate that local terminal computing obtains at least one opposite end client computer, and receive the three-dimensional coordinate of at least one opposite end client computer.
10. client computer as claimed in claim 9, is characterized in that, also comprise:
Described wireless communication module is also for receiving the three-dimensional coordinate of the fixed point checksum location preset that meeting camera head sends;
Correction module, corrects for the three-dimensional coordinate of three-dimensional coordinate to current residing position according to described default fixed point checksum location.
11. 1 kinds of minutes systems, is characterized in that, comprising: the meeting camera head as described in any one of claim 6-8, central computer and at least one client computer as described in claim 9 or 10.
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| CN105812717A (en) * | 2016-04-21 | 2016-07-27 | 邦彦技术股份有限公司 | Multimedia conference control method and server |
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