CN102196087A - Lens control method and terminals - Google Patents
Lens control method and terminals Download PDFInfo
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- CN102196087A CN102196087A CN2010101441535A CN201010144153A CN102196087A CN 102196087 A CN102196087 A CN 102196087A CN 2010101441535 A CN2010101441535 A CN 2010101441535A CN 201010144153 A CN201010144153 A CN 201010144153A CN 102196087 A CN102196087 A CN 102196087A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
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Abstract
The invention discloses a lens control method and terminals. The method comprises the following steps: a second terminal receives control information of a first terminal in video communication connection with the second terminal; and the second terminal controls the motion of a lens mechanical device of the second terminal according to the control information. According to the method and the terminals, the problem that the camera mechanical rotation or telescopic device of the opposite party cannot be controlled from the far end in video communication is solved, and the user experience effect is further improved.
Description
Technical field
The present invention relates generally to the communications field, specifically, relates to a kind of lens control method and terminal.
Background technology
Enter the 3G epoch, the mobile video communication function is greatly developed.Under 3G network, not only can carry out visual telephone between the cellphone subscriber, in voice call, share video, obtain video etc. from server, cellphone subscriber even can also carry out Video show with computer user.
In the mobile video communication field, the most frequently used communication protocol is protocol suite H.324.It comprises that H.223 subdivision connects agreement, H.245 system's control protocol, H.263 video coding agreement, G.723.1 audio coding agreement etc.
Fig. 1 sets up process based on the called video calling of agreement H.324 in the correlation technique, as shown in Figure 1, is example with the terminal called flow process, and it is as follows to set up process based on the video calling of protocol suite H.324:
101, after calling party's video telephone request is received by mobile switching centre's (Mibile Switch Center abbreviates MSC as), to called initiation beep-page message.
102, after terminal called was received beep-page message, Signalling exchange was carried out in the request of initiation, the circuit switched data link between foundation and the calling terminal.
103, the link establishment success, terminal called starts video telephone.
104, called terminal ringing, and show incoming information.
105, the user answers video telephone, starts H.324 protocol stack, and holds consultation according to session control process H.245.
106, terminal called disposes microphone according to negotiation result, camera, and equipment such as loud speaker are opened encoding and decoding and audio frequency and video logic channel, enter talking state.
107, after the on-hook, remove protocol stack, finish vt applications.
By above flow process as can be known, H.245 agreement is mainly carried out conversation control functions such as service capability negotiation and channel control in video communication.
In the correlation technique, in fields such as video monitoring commonly used and video conferencing, camera generally all is connected with tumbler with mechanical adjustment, and the camera of some high-end mobile phone also can stretch or rotate.
The inventor finds, the occasion of video communication, particularly video conferencing, use occasions such as remote monitoring, these mechanic adjustment unit can only be carried out manually or the remote controller adjusting at local terminal at present, can't control the other side's camera mechanical rotation or retractor device from far-end, and user experience is bad.
Summary of the invention
Main purpose of the present invention is to provide a kind of lens control method and terminal, to address the above problem at least.
According to an aspect of the present invention, provide a kind of lens control method, having comprised:
Second terminal receives the control information from first terminal that is connected with its video communication; Second terminal is controlled the motion of the camera lens mechanical device of second terminal according to control information.
Further, control information comprise following one of at least: the information of controls lens mechanical rotation, the flexible information of the focal length of controls lens.
Further, the motion that second terminal is controlled the camera lens mechanical device of second terminal according to control information comprises: second terminal is according to the parameter in the information of controls lens mechanical rotation, parse rotation direction and rotational angle, and pass to mechanical actuation device, control mechanical machine actuating device and rotate; And/or second terminal according to the parameter in the flexible information of the focal length of controls lens, parse flexible direction and flexible step-length, and pass to mechanical actuation device, controls lens is flexible.
Further, before the control information of second terminal reception from first terminal that is connected with its video communication, said method also comprises: first terminal and second terminal are carried out alternately, whether can support to accept control with the camera lens of confirming distant terminal.
Further, after the control information of second terminal reception from first terminal that is connected with its video communication, also comprise: whether the local lens driving interface of second terminal judges is available, if judged result is available, then send available message to first terminal, and carry out camera motion; If judged result is unavailable, then sends unavailable message to first terminal, and discharge this request.
Further, in H.245 ability centralized definition control information.
According to a further aspect in the invention, provide a kind of terminal, having comprised:
Receiver module is used to receive the control information from first terminal that is connected with its video communication; Control module is used for controlling according to control information the motion of the camera lens mechanical device of second terminal.
Further, the control module information of motion that is used to control the camera lens mechanical device of second terminal comprise following one of at least: the information of controls lens mechanical rotation, the flexible information of the focal length of controls lens.
Further, control module comprises: first control module, be used for parameter according to the information of camera lens mechanical rotation, and parse rotation direction and rotational angle, and pass to mechanical actuation device, control mechanical machine actuating device and rotate; And/or second control module, be used for parameter according to the flexible information of the focal length of controls lens, parse flexible direction and flexible step-length, and pass to mechanical actuation device, controls lens is flexible.
Further, terminal also comprises: whether determination module is used for carrying out supporting to accept control with the camera lens of confirming first terminal alternately with first terminal.
Further, terminal also comprises: judge module, be used to judge whether local lens driving interface is available, and if judged result is available, then send available message, and carry out camera motion to first terminal; If judged result is unavailable, then sends unavailable message to first terminal, and discharge this request.
Further, in H.245 ability centralized definition control information.
By the present invention, adopt the control information of second terminal reception from first terminal that is connected with its video communication, second terminal is controlled the motion of the camera lens mechanical device of second terminal according to control information, solved in the video communication and can't control the problem of the other side's camera mechanical rotation or retractor device, and then reached raising user experience effect from far-end.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 sets up process based on the called video calling of agreement H.324 in the correlation technique;
Fig. 2 is the flow chart according to the lens control method of the embodiment of the invention;
Fig. 3 is the message flow chart according to Long-distance Control the other side's camera lens mechanical device of the embodiment of the invention;
Fig. 4 receives handling process after the control information according to the Be Controlled side of the embodiment of the invention;
Fig. 5 is the structured flowchart according to the terminal of the embodiment of the invention; And
Fig. 6 is the preferred construction block diagram according to the terminal of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
In the following embodiments, video calling both sides' terminal type and network type are unrestricted, only need follow H.245 control protocol, portable terminal no matter, and fixed terminal, or be in wireless network, cable network all can be implemented.
In the present embodiment, second terminal (Be Controlled side) should have the relevant hardware ability.As the terminal that has ability B should have corresponding mechanical rotating mechanism, and the terminal that has ability C should have corresponding camera lens telescoping mechanism.
Fig. 2 is the flow chart according to the lens control method of the embodiment of the invention, as shown in Figure 2, comprising:
Step S202, second terminal receives the control information from first terminal that is connected with its video communication.
Step S204, second terminal is controlled the motion of the camera lens mechanical device of second terminal according to control information.
In the video communication process of correlation technique, can not control the mechanical rotation or the retractor device of the other side's camera lens by long-range mode, user experience is bad.By step S202, second terminal receives the control information of first terminal that comes from its video communication connection, has realized the camera lens control information that receiving remote sends; Step S204, second terminal is controlled the motion of the camera lens mechanical device of second terminal according to control information, realized according to of the control of Long-distance Control information local camera lens mechanical device motion, mechanical rotation or the retractor device that to control the other side's camera lens in the video communication by long-range mode have been solved, make the user obtain better shooting angle and quality, improved user experience.
Preferably, in the new ability of ability centralized definition H.245: camera lens mechanical device remote control ability (back abbreviation ability A), camera lens mechanical rotation ability (back abbreviation ability B), camera lens (focal length) ability (back abbreviation ability C) of stretching.Wherein ability B is relevant with the hardware configuration of counterpart terminal with ability C, and in principle, the terminal with corresponding mechanical device can define ability B and ability C.Ability A and ability B are stand-alone capability, and C is the while ability.
Preferably, the control information in step S202 comprise following one of at least: control the information of described camera lens mechanical rotation, the flexible information of focal length of the described camera lens of control, and can in H.245, define corresponding message.The terminal that has ability A can send the message that makes the terminal camera lens stepping up and down rotation that has ability B, and type of message is request, needs according to the response condition feedback response message after the terminal that has an ability B is received message; Equally, the terminal that has ability A can send the message that makes the terminal dolly camera that has ability C, and type of message is request, and the terminal that has an ability C is received after the message according to the response condition feedback response message.
Preferably, step S204 comprises: second terminal parses rotation direction and rotational angle according to the parameter in the information of controls lens mechanical rotation, and passes to mechanical actuation device, controls mechanical machine actuating device and rotates; And/or second terminal according to the parameter in the flexible information of the focal length of controls lens, parse flexible direction and flexible step-length, and pass to mechanical actuation device, controls lens is flexible.This step specific implementation the rotation and the stretching motion of camera lens.
Preferably, before step S202, said method also comprises: described first terminal and second terminal are carried out alternately, whether can support to accept control with the camera lens of confirming distant terminal.This step confirms whether distant terminal has the ability of the control of receiving, and is the basis of Long-distance Control.
Preferably, after step S202, said method also comprises: whether the local lens driving interface of described second terminal judges is available, if judged result is available, then sends available message to described first terminal, and carries out camera motion; If judged result is unavailable, then sends unavailable message to described first terminal, and discharge this request.Whether available this step realized the judgement to local lens driving.
Preferably, H.245 define control information in the agreement, agreement is H.245 being replenished, realizing the purpose of Long-distance Control camera lens.
Preferably, if mechanical device can't move as requested, then feed back the corresponding message request of giving and send terminal, request transmission terminal can give the user according to message and necessarily point out.
Present embodiment is based on video communication protocols H.324, or uses H.245 and the control protocol of coming by H.245 developing etc. based on other.
In the present embodiment, by control protocol H.245 being carried out certain replenishing, and on counterpart terminal, increase corresponding handling process, realized the motion of the other side's camera lens mechanical device in the Long-distance Control video calling.
Fig. 3 is according to the message flow chart of Long-distance Control the other side's camera lens mechanical device of the embodiment of the invention, in the present embodiment, carries out the operation of controls lens left rotation and right rotation, and the calling party is a controlling party, and the callee is Be Controlled side, and specific implementation process is as follows:
Step S301, the calling subscriber initiates video call to the called subscriber, and the beginning Radio Link is set up process.After setting up successfully, begin the fixed layer of mobile rank process, both sides consult an identical mobile rank.
Step S302, Radio Link link setup process, link setup success.
Step S303, the fixed layer of Mobile level process, after the fixed layer success, both sides start the control procedure of H.245 conversing, and set up control channel and carry out capabilities exchange.In this step, both sides' exchange capacity A and ability B information confirm that both sides support rotation of lens control and corresponding spinfunction.
Step S304, the calling subscriber sends camera rotation request message to the called subscriber.Start regularly retransmission mechanism simultaneously, if the overtime response message of still not receiving the other side then starts the definite winding time delay process in the agreement H.245, to determine called whether can reaching.As unreachable, then abandon this conversation.Then continue conversation as reaching, and initiate camera rotation request at this.
After step S305, recipient receive the message of request camera rotation, whether available to the Mechanical Driven Interface Verification Equipment, as feed back availablely, and then giving transmit leg and reply, the request control hardware driver module that sends according to transmit leg carries out rotation of lens simultaneously.Unavailable as hardware device, then feed back to the unavailable message of request transmit leg.This rotation request response process finishes, and discharges logic channel.
Step S306 in the process of rotation, need stop the rotation as the calling party, then sends the camera request message that stops the rotation to the request recipient.After the callee receives request, stop the camera rotation.
Step S307, the user hangs up the telephone, and removes protocol stack and Radio Link, end of conversation.
Fig. 4 receives process chart after the control information according to the Be Controlled side of the embodiment of the invention, and present embodiment carries out the camera rotary manipulation, and prosecution receives that the handling process after the camera rotation request is as follows:
Step S401, H.245 handle the camera rotation request that correlation module parses the other side after, drive to bottom hardware and to initiate inquiry, inquire about currently whether can be rotated action.
Step S402, first kind of situation is if current can't being rotated reports H.245 processing module; Second kind of situation is if current can being rotated reports H.245 processing module.
Step S403, first kind of situation, notice user interface (User Interface abbreviates UI as) provides the relevant prompting that is not rotated; Second kind of situation, notice UI interface provides the relevant prompting of rotating.
Step S404 according to the direction of rotation that parses and the anglec of rotation, proposes the rotation requirement to Hardware drive module.
Step S405, Hardware drive module control camera lens rotates accordingly.
Step S406, in the rotation process, the user can directly interrupt rotary course to driving transmission message from the UI interface.
Step S407, Hardware drive module control camera lens stops operating.
Step S408, after stopping operating, Hardware drive module sends message to the UI interface, and notice UI interface provides corresponding prompting.
In Fig. 3 and embodiment shown in Figure 4, in the process of rotation tumbler, request transmit leg and request recipient can end the rotary course of tumbler by corresponding operation.
Preferred embodiment one
Be first example with the cell-phone visual conversation below, its course of work of simple declaration on user's occupation mode.Suppose that mobile phone A and B are two terminals of conversation on video telephone, mobile phone A and B are as described in the foregoing description, in agreement H.245, all defined the capability set of control and Be Controlled cam movement, and the camera of mobile phone A supports camera lens flexible, rotation before and after the camera of mobile phone B is supported (part clamshell phone camera is arranged on the axle of renovating, can before and after rotation).
In the conversation of mobile phone A and mobile phone B, want the camera lens party A-subscriber that sees the mobile phone that furthers then can be sent to the mobile phone A user and regulates the flexible request of camera lens, after mobile phone A user receives request, as agreeing that then the mobile phone B user enters camera lens telescopic adjustment interface as the mobile phone B user.Mobile phone B user can the service orientation key, and usual ways such as touch-screen come the forward direction mobile phone A to send camera lens telescopic adjustment information, and the channel that this information is opened up by agreement H.245 transmits.
After mobile phone A was received camera lens telescopic adjustment signal, according to adjusting direction and the regulated quantity in the signal, the hardware mechanism that drives oneself carried out camera lens automatically and stretches, thereby makes user B obtain the user A picture that needs.
In like manner, rotate up and down, also can regulate according to this mode if the mobile phone A user wants the camera of controlling mobile phone B.
Preferred embodiment two
With the fixed terminal video conference followed H.245 is that second example comes simple declaration user use.Suppose that two users exchange with D by video conference terminal C.Video conference terminal C one side's user thinks that the user of video conference terminal D is not in picture central authorities, and the camera of wanting to regulate voluntarily from this locality the other side's video conference terminal D rotates, to obtain better picture effect.Then the user of terminal C can initiate camera rotation requirement to terminal D by remote controller, comprises the direction and the anglec of rotation of rotation in the signal of transmission.Terminal D parses this request after receiving camera rotation requirement, and the control hardware drive unit carries out the camera rotation automatically afterwards.Make terminal C user obtain the video conference picture that needs.
Fig. 5 is the structured flowchart according to the terminal of the embodiment of the invention, as shown in Figure 5, comprises receiver module 52 and control module 54, below said structure is described in detail:
Receiver module 52 is used to receive the control information from first terminal that is connected with its video communication; Control module 54 is connected to receiver module 52, and the motion of local camera lens mechanical device is controlled in the control information that is used for receiving according to receiver module 52.
Fig. 6 is the preferred construction block diagram according to the terminal of the embodiment of the invention, as shown in Figure 6, above-mentioned terminal also comprises determination module 62 and judge module 64, and control module 54 also comprises first control module 541 and first control module 542, below said structure is described in detail:
Whether determination module 62 is used for carrying out supporting to accept control with the camera lens of confirming first terminal alternately with first terminal; Judge module 64 is used to judge whether local lens driving interface is available, if judged result is available, then sends available message to first terminal, and carries out camera motion; If judged result is unavailable, then sends unavailable message to first terminal, and discharge this request; First control module 541 is used for the parameter according to the information of camera lens mechanical rotation, parses rotation direction and rotational angle, and passes to mechanical actuation device, controls mechanical machine actuating device and rotates; Second control module 542 is used for the parameter according to the flexible information of the focal length of controls lens, parses flexible direction and flexible step-length, and passes to mechanical actuation device, and controls lens is flexible.
The present invention can be applied in video monitoring, video conference, and in the scene such as part video telephone.
Need to prove that the terminal of describing among the device embodiment is in above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
As can be seen from the above description, the present invention has realized following technique effect: the user of video communication can control to the camera rotation and the telescoping mechanism of opposite end easily, realizes initiatively adjusting the camera angle or the focal length of video transmit leg.In various video communication scenes, can according to oneself needs and the impression regulate the other side's picture angle, readabilitys etc. have improved user experience.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a lens control method is characterized in that, may further comprise the steps:
Second terminal receives the control information from first terminal that is connected with its video communication;
Described second terminal is controlled the motion of the camera lens mechanical device of described second terminal according to described control information.
2. method according to claim 1 is characterized in that, described control information comprise following one of at least:
Control the information of described camera lens mechanical rotation, the flexible information of focal length of the described camera lens of control.
3. method according to claim 2 is characterized in that, the motion that described second terminal is controlled the camera lens mechanical device of described second terminal according to described control information comprises:
Described second terminal parses rotation direction and rotational angle, and passes to mechanical actuation device according to the parameter in the information of the described camera lens mechanical rotation of control, controls mechanical machine actuating device and rotates; And/or
Described second terminal parses flexible direction and flexible step-length, and passes to mechanical actuation device according to the parameter in the flexible information of the focal length of the described camera lens of described control, and controls lens is flexible.
4. method according to claim 1 is characterized in that, before the control information of second terminal reception from first terminal that is connected with its video communication, described method also comprises:
Described first terminal and second terminal are carried out alternately, whether can support to accept control with the camera lens of confirming distant terminal.
5. method according to claim 1 is characterized in that, after the control information of second terminal reception from first terminal that is connected with its video communication, also comprises:
Whether the local lens driving interface of described second terminal judges is available, if judged result is available, then sends available message to described first terminal, and carries out camera motion; If judged result is unavailable, then sends unavailable message to described first terminal, and discharge this request.
6. according to each described method of claim 1 to 5, it is characterized in that, in the H.245 described control information of ability centralized definition.
7. a terminal is characterized in that, comprising:
Receiver module is used to receive the control information from first terminal that is connected with its video communication;
Control module is used for controlling according to described control information the motion of the camera lens mechanical device of described second terminal.
8. terminal according to claim 7 is characterized in that, the information of motion that described control module is used to control the camera lens mechanical device of described second terminal comprise following one of at least:
Control the information of described camera lens mechanical rotation, the flexible information of focal length of the described camera lens of control.
9. terminal according to claim 8 is characterized in that, described control module comprises:
First control module is used for the parameter according to the information of described camera lens mechanical rotation, parses rotation direction and rotational angle, and passes to mechanical actuation device, controls mechanical machine actuating device and rotates; And/or
Second control module is used for the parameter according to the flexible information of the focal length of the described camera lens of described control, parses flexible direction and flexible step-length, and passes to mechanical actuation device, and controls lens is flexible.
10. terminal according to claim 7 is characterized in that, described terminal also comprises:
Whether determination module is used for carrying out supporting to accept control with the camera lens of confirming described first terminal alternately with described first terminal.
11. terminal according to claim 7 is characterized in that, also comprises:
Judge module is used to judge whether local lens driving interface is available, if judged result is available, then sends available message to described first terminal, and carries out camera motion; If judged result is unavailable, then sends unavailable message to described first terminal, and discharge this request.
12. according to each described terminal of claim 7 to 11, it is characterized in that, in the H.245 described control information of ability centralized definition.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101441535A CN102196087A (en) | 2010-03-12 | 2010-03-12 | Lens control method and terminals |
| PCT/CN2010/075198 WO2011109978A1 (en) | 2010-03-12 | 2010-07-15 | Method and terminal for controlling lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101441535A CN102196087A (en) | 2010-03-12 | 2010-03-12 | Lens control method and terminals |
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| CN102196087A true CN102196087A (en) | 2011-09-21 |
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| CN2010101441535A Pending CN102196087A (en) | 2010-03-12 | 2010-03-12 | Lens control method and terminals |
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| CN (1) | CN102196087A (en) |
| WO (1) | WO2011109978A1 (en) |
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- 2010-03-12 CN CN2010101441535A patent/CN102196087A/en active Pending
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