CN101710944A - Method for controlling all-around zoom and focus of device without all-around zoom and focus function - Google Patents
Method for controlling all-around zoom and focus of device without all-around zoom and focus function Download PDFInfo
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- CN101710944A CN101710944A CN200810208178A CN200810208178A CN101710944A CN 101710944 A CN101710944 A CN 101710944A CN 200810208178 A CN200810208178 A CN 200810208178A CN 200810208178 A CN200810208178 A CN 200810208178A CN 101710944 A CN101710944 A CN 101710944A
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Abstract
The invention provides a method for controlling all-around zoom and focus of a pick-up device without an all-around zoom and focus function in network element equipment of a video control system, which comprises the following steps of: a, receiving a PTZ control command; and b, performing PTZ control treatment on an image to be taken according to the PTZ control command. The invention also provides a control device for implementing a corresponding function in the network element equipment of the video control system. The method and the device of the invention move, zoom in and zoom out the image taken by the pick-up device without a PTZ function so as to automatically zoom, focus and vertically and horizontally move up and down, and left and right the pick-up device without the PTZ function. Therefore, the cheap pick-up device without the PTZ function is equivalent to a pick-up device with the PTZ function so as to greatly save the cost and improve convenience of application; and the pick-up device without the PTZ function also can have functions of the pick-up device with the PTZ function, such as turning images, inversing images, moving at any angle within 360 degrees and moving in any step size.
Description
Technical field
The present invention relates to video control system, especially become that the full side of zoom and focus moves and camera lens becomes doubly, zoom (PAN/TITLE/ZOOM, hereinafter to be referred as: PTZ) control, the control device and the control corresponding method of particularly the camera head that does not possess the PTZ function being carried out PTZ control.
Background technology
Video control system has become very general system at present, and is widely used in all trades and professions.For example, relatively Chang Yong video control system comprises video monitoring system and video conferencing system at least, and the former is mainly used in some scene is monitored, and makes the supervisor just can understand object in the scene and concrete variation in the control room; The latter is mainly used in teleconference, makes the personnel be positioned at the different location to simulate by video and is sitting in same meeting-place and holds a meeting.
With the fixed network video monitoring service is example, and it is a kind of a kind of business that image and various alarm signal remote collection, transmission, storage, processing are provided for the user based on broadband network.This is a network video monitor and control system of being made up of front end, intermediate ends, rear end three parts.Front end is made up of camera lens, video camera, The Cloud Terrace, alarm switch, video decoding/encoding device, host computer control equipment and monitoring software; Intermediate ends promptly is the center service platform that the fixed network video monitoring system provides, and center service platform has the management function of business platform, and the image that sends is transmitted, distributed or stores, to the warning processing that links; End subscriber can be at any one access point of network in the back, no matter be that monitoring is on-the-spot, Surveillance center, or far-end, as long as by IE browser or client software, after by authentification of user, can watch video arbitrarily, the angle of may command video camera, the track back that furthers, control remote equipment, and can receive warning message.By this business, the user only need click the mouse slightly, by broadband network, being not only of can seeing from display is clear, true to nature, real-time monitoring images, more similarly is that delineated out by network video monitor and control system, as to contain a huge commercial opportunities and economic benefit information-based blueprint.Similarly, in mobile network's video monitoring service, also there are similar demand and planning.
But, realize in fixed network or mobile network that the precondition of above-mentioned video monitoring function is, the camera head of front monitoring front-end is supported the PTZ function.So-called PTZ function is meant that the camera lens of camera head can stretch (making image being shot amplify dwindles) automatically, and camera head integral body can carry out four orientation up and down vertical, move horizontally.And, support the camera head of PTZ function to cost an arm and a leg at supervisory control system, do not support common camera PTZ, that price is relatively cheap although needing in the current demand to cause the PTZ function to have to adopt in order to save cost.For the camera head that does not possess the PTZ function, become doubly, focus on, the adjustment in shooting orientation all need transfer first kind of camera head by hand by operating personnel, because angle lens immobilizes, exist a large amount of dead angles to photograph, when needing to adjust angle lens, all need the special messenger to go to camera head location, manual setting at every turn, can't realize instant adjustment, use very inconvenient.And at the camera head that possesses the PTZ function in the prior art, often only realize that four orientation, upper and lower, left and right are vertical, move horizontally, can not realize that upset, reversing and 0～360 degree any angular orientation move.
How to realize that it is exactly a realistic problem that the common camera of not supporting the PTZ function is carried out PTZ control, simultaneously, preferably can realize multi-purpose PTZ control, for example arbitrarily angled moving spent in image upset, reversing, 360, this especially has a very useful function for video traffic on the video monitoring service.Regrettably, the cheap camera head that possesses the PTZ function still fails to realize.
Summary of the invention
For solving the above-mentioned problems in the prior art, the present invention is by handling the control device and the control corresponding method of carrying out PTZ control at the camera head that does not possess the PTZ function to provide to the captured image of the camera head that does not possess the PTZ function.
According to an aspect of the present invention, provide a kind of and in the network element device of video control system, become the control method that the full side of zoom and focus controls not possessing the camera head that becomes the full side's function of zoom and focus, it is characterized in that, comprise the steps: that a. receives the PTZ control command; B. carry out the PTZ control and treatment according to described PTZ control command to taking the photograph image in advance.
According to another aspect of the present invention, also provide a kind of and in the network element device of video control system, become the control device that the full side of zoom and focus controls not possessing the camera head that becomes the full side's function of zoom and focus, it is characterized in that, comprising: first receiving device is used to receive the PTZ control command; And first processing unit, be used for carrying out the PTZ control and treatment to taking the photograph image in advance according to described PTZ control command.
Preferably, described PTZ control command comprises at least as in giving an order each:
-be moved to the left current display frame;
-current display frame moves right;
-current display frame moves up;
-move down current display frame;
-amplifieroperation is carried out in described current display frame;
-reduction operation is carried out in described current display frame;
-move current display frame to the upper left side;
-current display frame is moved in the below left;
-move current display frame to the lower right; Perhaps
-move current display frame to the upper right side.
According to a further aspect of the invention, also provide a kind of video control system, comprise above-mentioned control device in this intrasystem network element device.
The present invention is by to processing such as the captured image of the camera head that does not possess the PTZ function move, amplifies, dwindles, thereby realize to the automatic change of the camera head that do not possess the PTZ function doubly, focus on, up and down four orientation vertical, move horizontally, make that promptly the cheap camera head that does not possess the PTZ function is equivalent to the camera head that possesses the PTZ function to a great extent, thereby provide cost savings and improved the convenience of application widely.Moreover, utilize control device provided by the invention and control method, can also realize the camera head that does not possess the PTZ function or possess the PTZ function carried out that image upset, reversing, 360 degree are arbitrarily angledly moved, the function that moves of step-length arbitrarily, this has also expanded the function of the camera head that possesses the PTZ function widely.The present invention realizes simply, must not need existing equipment is done renewal on the hardware view, is easy to upgrading, is easy to safeguard, is easy to promote.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 illustrates according to a prior art or a specific embodiment of the present invention, the network topology schematic diagram of video control system;
Fig. 2 illustrates according to a specific embodiment of the present invention, the camera head that does not possess the PTZ function is carried out the flow chart of the control method of PTZ control in the network element device of video control system;
Fig. 3 illustrates according to the first embodiment of the present invention, the camera head that does not possess the PTZ function is moved to the left the flow chart of the control method of control in the network element device of video control system;
Fig. 4 illustrates according to a second embodiment of the present invention, the camera head that does not possess the PTZ function is zoomed out the flow chart of the control method of control in the network element device of video control system;
Fig. 5 illustrates according to a specific embodiment of the present invention, uses the schematic diagram of architectural framework of the supervisory control system of control device provided by the invention in the video access unit in mobile network's video monitoring system;
Fig. 6 illustrates according to another embodiment of the present invention, the operating result schematic diagram of in the network element device of video control system the camera head that does not possess the PTZ function being controlled; And
Fig. 7 illustrates a fourth embodiment in accordance with the invention, becomes the zoom and focus structural representation of the control device of side's control entirely to not possessing the camera head that becomes the full side's function of zoom and focus in the network element device of video control system.
Embodiment
The present invention considers from the cost and the function synthesized of video control system, the camera head that does not possess the PTZ function is operated control so that it finishes PTZ control, particularly, comprised moving of four horizontal or vertical directions up and down, comprise also that other is upper left, lower-left, upper right, lower right to move, also comprise other angle and moving arbitrarily of step-length arbitrarily; Also comprise amplification (furthering) particularly and dwindle zoom operations such as (zooming out).According to the present invention, make camera head not need to increase assembly and parts, just has the full side's function of the zoom and focus of change, and image can be overturn, reverse, 360 degree are arbitrarily angled moves, and control device provided by the invention is cheap, can create huge economic interests for video control system.
Fig. 1 illustrates according to a prior art or a specific embodiment of the present invention, the network topology schematic diagram of video control system.It will be appreciated by those skilled in the art that preferably, in an embodiment of the present invention, do not need the network topology of prior art is changed, so prior art and various embodiments of the present invention preferably adopt same network topology.Particularly, network topology shown in Figure 1 is particularly useful for the video conference control system, and it comprises front end, intermediate ends, rear end three parts composition.Say simply, front end comprises camera head 81 grades and front-end control facilities 51, and those skilled in the art understand, according to different enforcement needs, this camera head can comprise different assemblies, for example it can comprise assemblies such as camera lens, video camera, The Cloud Terrace, alarm switch, video decoding/encoding device, host computer control equipment and monitoring software in a prior art, does not repeat them here.Intermediate ends comprises a MCU (multipoint control unit) 52, it is used for multi-channel video signal is handled, the image that a plurality of terminals (for example camera head 81) send is transmitted, distributed or stores, control request information to a plurality of terminals is handled, and each terminal is carried out control and treatment.The rear end is made up of a plurality of user terminals, and for example user terminal is directly on-the-spot in monitoring, Surveillance center inserts MCU, perhaps inserts described MCU by the Internet, and this does not influence flesh and blood of the present invention.Those skilled in the art in conjunction with prior art and various embodiment, change example and realize such camera head, intermediate ends and rear end, do not repeat them here.
Those skilled in the art understand, no matter in the prior art or in the present embodiment, described user terminal can be polytype terminal, it for example can be the logical desktop computer of a Daepori, it also can be notebook computer, or be exclusively used in the terminating machine of video conference control system, perhaps can also be portable terminal (for example mobile phone, palmtop PC).At portable terminal, also need a forwarding unit 6 that vision signal is converted to described portable terminal acceptable video format usually.Those skilled in the art can realize such network topology in conjunction with prior art, do not repeat them here.
Particularly, under above-mentioned network topology environment, be positioned at the operating personnel of rear end, can insert described MCU and come the control of video signal by arbitrary by the terminal of authentification of user, for example the angle of may command video camera, track back etc. furthers.And in the prior art, if wish to realize functions such as the angle of control video camera, the track back that furthers, precondition is that controlled camera head 81 grades possess the PTZ function, otherwise can't realize controlling each function in the angle of camera head, the track back that furthers.And in embodiment provided by the invention,, still can realize controlling PTZ functions such as the angle of camera head, the track back that furthers even described controlled camera head 81 does not possess the PTZ function.
Fig. 2 illustrates according to a specific embodiment of the present invention, the camera head that does not possess the PTZ function is carried out the flow chart of the control method of PTZ control in the network element device of video control system.In the present embodiment, the process of finishing the control of PTZ function according to the present invention has been done concise and to the point global description.At first execution in step S101 receives the PTZ control command.Preferably, this PTZ control command comes from a user terminal (control terminal).It will be appreciated by those skilled in the art that each user terminal is connected to the network element device of video control system directly or indirectly, for example by Internet connection.Described network element device can be implemented needs and difference for example can be above-mentioned MCU52 shown in Figure 1 according to difference.When the operating personnel that operate described user terminal wish to check the picture different with current display frame, then send described PTZ control command, for example current display frame is moved to the left a step-length unit.Those skilled in the art understand, operating personnel also may send the control command of other type by described user terminal, for example send call request to a video conference terminal, but such control command and the technical problem to be solved in the present invention are not contacted directly, corresponding processing mode can be handled in conjunction with prior art, does not repeat them here.
Particularly, described PTZ control command can comprise multiple demand according to operating personnel's needs, it for example can be conventional PTZ control command, for example be moved to the left step-length of current display frame or a plurality of step-length, step-length of current display frame or a plurality of step-length for example move right again, step-length of current display frame or a plurality of step-length for example move up again, for example move down step-length of current display frame or a plurality of step-length again, for example amplifieroperation or reduction operation or the like are carried out in described current display frame again.Particularly, it will be appreciated by those skilled in the art that preferably that described step-length can be a default operating unit, for example 0.1 millimeter or 100 pixels, this can be in conjunction with prior art and specifically need be achieved, and does not repeat them here.Similarly, amplifieroperation or reduction operation also can be set a default operating unit, for example are enlarged into 1.5 times of original image, perhaps are reduced into 1.5 times of original image, and this does not influence flesh and blood of the present invention, does not repeat them here.Particularly, those skilled in the art understand, operating personnel can realize such control command by the mouse that is complementary with described user terminal that slides, and for example preferably set to be moved to the left a unit and promptly to indicate control device provided by the invention to make camera head carry out the operation that is moved to the left a step-length; Again for example the roller key by mouse forward scrolling realization to amplification control command of display frame or the like.And change in the example at one, realize such PTZ control command by the keyboard of user terminal, particularly, press " → " key and send requirement the move right instruction of a step-length of current display frame, correspondingly, press " → " key continuously and then send continuous requirement the move right instruction of a step-length of current display frame; Again for example, pressing "-" key realizes display frame dwindled control command or the like.
Further, by the present invention, can also send irrealizable control command in the prior art, for example realize sending the instruction of " moving current display frame " to the upper left side by pressing " ← ", " ↑ " key on the keyboard that is complementary with described user terminal; Correspondingly, " → ", " ↓ " key of pressing on the keyboard realized the instruction of " moving current display frame to the lower right ".Again for example, the mouse that is complementary when described and user terminal is when any direction slides, be installed in the interior client software of described user terminal and correspondingly catch the glide direction of mouse, and determine the direction that requires described current display frame to move, thereby realize the arbitrarily angled mobile instruction of current display frame according to this glide direction.Change in the example at one, also can show a dialog box by pressing a menu, input requires described current display frame to move in this dialog box direction and step-length are for example imported " 30 degree " respectively, are represented current display frame to mobile 3 step-lengths of upper left side 30 degree in " step-length " text box input " 3 " at " angle " text box; As respectively " angle " text box input " 120 degree ", " step-length " text box input " 5 " expression with current display frame left below 30 degree move 5 step-lengths, thereby realize the picture move operation of arbitrarily angled any amplitude.It will be appreciated by those skilled in the art that according to such embodiment and variation example, in fact can realize any skew to current display frame, for example image upset, reversing, 360 are spent arbitrarily angled mobile, do not repeat them here.
Behind above-mentioned steps S101, enter step S102, determine corresponding with this PTZ control command image of taking the photograph in advance.Particularly, it will be appreciated by those skilled in the art that when described network element device and only handle one when taking the photograph image in advance that this step can be omitted; But preferably, network element device often handle simultaneously that a plurality of camera heads take several take the photograph image in advance, so network element device need be determined the pairing image of taking the photograph in advance of this instruction according to the PTZ control command that different user terminals sends.Preferably, when picture of user terminal browsing, this picture based on take the photograph the image that image is exactly the PTZ control command correspondence sent of this user terminal in advance; Preferably, so captured image of the just current controlled camera head of image of taking the photograph in advance will not be given unnecessary details.
Next execution in step S103 carries out the PTZ control and treatment according to described PTZ control command to the described image of taking the photograph in advance.Particularly, described network element device (in control device) is carried out the PTZ control and treatment according to control method provided by the invention.For example when described PTZ control command requires to be moved to the left current display frame, then correspondingly carry out the treatment step that is moved to the left current display frame based on the described image of taking the photograph in advance, particularly as Fig. 3 and/or embodiment illustrated in fig. 4 shown in, do not repeat them here.
Enter step S104 at last, described result is returned to and the corresponding terminal of described PTZ control command.By above-mentioned steps S103, described network element device obtains a new picture, the i.e. result of step S103.Preferably, described result is shown on the display device of described user terminal or described user terminal appointment as new display frame, thereby realize this step, do not repeat them here.
On the basis of above-mentioned embodiment shown in Figure 2, Fig. 3 illustrates according to the first embodiment of the present invention, the camera head that does not possess the PTZ function is moved to the left the flow chart of the control method of control in the network element device of video control system.Particularly, in the present embodiment, indicating current display frame to be moved to the left a step-length with the PTZ control command is the handling process that example illustrates control method provided by the invention; As the variation example of present embodiment, those skilled in the art can realize processing to other control commands in conjunction with prior art and embodiments of the invention, for example are moved to the left a plurality of step-lengths or move processing such as a plurality of step-lengths to the upper right side, do not repeat them here.
Particularly, in the present embodiment, at first execution in step S111 receives the PTZ control command, and this step can realize with reference to step S101 shown in Figure 2, not repeat them here.Enter step S112 then, the central point of current display frame is taken the photograph in the image to a unit distance of left (step-length) in advance described, and with the central point of the central point after the translation as current display frame.Particularly, in the present embodiment, we suppose to take the photograph in advance the image that size of images is 100*100 pixel size (size), as initial point (0,0), and current display frame has shown with (10 with this central point of taking the photograph image in advance, 10) for the length of central point is 10, height is 8 image, the position that is current display frame is the rectangular area of (15,6) for upper left corner coordinate for (5,14), lower right corner coordinate.Further, in the present embodiment, we suppose that a step-length is 2 pixels, then pass through this step process after, the central point of current display frame is changed to (8,10).Correspondingly, it will be appreciated by those skilled in the art that the zone that then current display frame shows is that (3,14), lower right corner coordinate are the rectangular area of (13,6) for upper left corner coordinate after the central point of described current display frame changes.Last execution in step S 113, described network element device (in control device) to (user) terminal of sending described PTZ control command show the central point that obtains after handling with step S112 be the image at center as described current display frame, thereby be implemented in the operation of the step-length that moves to left on the basis of former display frame.
By above-mentioned 3 steps, can realize that the image to any camera head picked-up carries out the operation of translation.Those skilled in the art understand, no matter be for the camera head that possesses the PTZ function, still the camera head that does not possess the PTZ function, the image (being current display frame) that is usually displayed on the camera head shooting on the user terminal only is the part of this camera head actual photographed image (promptly taking the photograph image in advance).By above-mentioned 3 steps, realized to take the photograph the function of image translation in advance, thereby made operating personnel to check the parts of images content that it can't be checked on display device by user terminal.Further, those skilled in the art understand, pass through above-mentioned steps, can also realize moving up and down and the moving of any direction, can also realize amplification, reduction operation by embodiment illustrated in fig. 4 further, in fact make the camera head that does not possess the PTZ function can realize PTZ control, do not repeat them here.
With embodiment illustrated in fig. 3 similar, Fig. 4 illustrates according to a second embodiment of the present invention, the camera head that does not possess the PTZ function is zoomed out the flow chart of the control method of control in the network element device of video control system.In the present embodiment, operating personnel wish to see more large-area image, thereby send the control command that camera head is zoomed out, and promptly the PTZ control command of dwindling are carried out in current display frame.With embodiment illustrated in fig. 3 similar, at first execution in step S121 obtains described PTZ control command, and this step can realize with reference to step S101 shown in Figure 2 equally, not repeat them here.Enter step S122 then, judge whether described current display frame is the described maximum area of taking the photograph image in advance, if the judged result of this step is sure, does not then carry out any operation, this processing procedure finishes; Otherwise, if the judged result of this step negates then to enter step S123.Particularly, those skilled in the art can for example can compare the image size of current display frame in conjunction with existing techniques in realizing step S122 with the described size of taking the photograph image in advance, think that if both are identical the judged result of this step is sure.And change in the example at one, can also with the central point initial point, compare by difference and to realize not repeating them here this step the difference of the coordinate in the upper left corner of current display frame and lower right corner coordinate and the described upper left corner coordinate of taking the photograph image in advance and lower right corner coordinate.
In step S123, described network element device (in control device 4) with the central point of current display frame as central point, 1.2 times with the radius of current display frame are obtained more large-area image for new radius described taking the photograph in advance, thereby form a new image in the image.It will be appreciated by those skilled in the art that the area of the area of this image, i.e. the image area that can show greater than user terminal greater than current display frame.Adaptably, further execution in step S124 dwindles above-mentioned new images according to 1.2 times of multiplying powers, and the image after will dwindling is as current display frame, thereby makes current display frame consistent with the image area that described user terminal can show.
Enter step S125 at last, to the described current display frame of user terminal displays, the picture after promptly handling through step S124.Particularly, it will be appreciated by those skilled in the art that, realized on the basis of former display frame, on user terminal, showing the more function of picture of large image scale, promptly realized zooming out the function of camera head by above-mentioned steps S123 and step S124; Adaptably, the image in the shown picture is compared correspondingly with the image in the former display frame and has been dwindled, and does not repeat them here.
It will be appreciated by those skilled in the art that " radius " among the above-mentioned steps S123 is a summary to the size of display frame, rather than be defined in circular or oval-shaped radius.In other words, when current display frame is rectangular, the area that then can be correspondingly length and wide (or high) of this rectangle be correspondingly expanded current display frame according to multiplying power; Perhaps when being irregularly shaped, also can expand the area of current display frame according to the multiplying power that its shape is determined according to step S123 in current display frame.The statement of described " radius " does not influence flesh and blood of the present invention, does not repeat them here.
One at the foregoing description changes in the example, and 1.2 multiplying powers among the described step S123 can correspondingly change, and for example can be 1.5 multiplying powers or other multiplying powers, and this depends on default setting, does not influence flesh and blood of the present invention, does not repeat them here.
Similarly, the variation example that it will be appreciated by those skilled in the art that the foregoing description goes for the further handling process of control of the camera head that does not possess the PTZ function.In such variation example, operating personnel wish more clearly to observe image, thereby send the control command that camera head is furthered, and promptly the PTZ control command of amplifying are carried out in current display frame.Other is with step S122 phase region shown in Figure 4, judges whether described current display frame can also further amplify, if the judged result of this step negates then not carry out any operation, this processing procedure end; Otherwise, if the judged result of this step is sure, then enter subsequent step, for example the variation example of S123.Can judge the resolution of current display frame particularly,, think that then the judged result of variation example of above-mentioned steps S122 negates not repeat them here if resolution has been lower than a threshold value.Further, in the variation example of step S123, be that central point obtains image again then according to the multiplying power reduced radius of determining and with current central point, in step S124, amplify the image that newly obtains according to this multiplying power more then.Through such variation example, then the image of current display frame becomes big.Further, those skilled in the art understand, in other variation examples of this variation example, can also carry out correcting process to the described image that newly obtains, for example make that according to certain image algorithm the described image that newly obtains is more clear, those skilled in the art can not repeat them here in conjunction with the such variation example of existing techniques in realizing.
Further, those skilled in the art understand, in another variation example embodiment illustrated in fig. 4, between described step S124 and step S125, can also increase a step, for example " compress described current display frame " according to predetermined resolution, in such variation example, can according to the display capabilities of user terminal and/or described video control system based on the resolution of the current display frame that is transmitted of the busy situation adjustment of network, perhaps transmit described current display frame, thereby make current display frame can not cause and normally to be shown because of display message increases according to default resolution.Those skilled in the art can realize such variation in conjunction with prior art and the foregoing description, do not repeat them here.
With reference to figure 3 and embodiment illustrated in fig. 4, those skilled in the art understand, in a variation example embodiment illustrated in fig. 3, before described step S103, can increase a determining step, judge promptly whether described current display frame has arrived the described high order end of taking the photograph image in advance, if judged result is sure, then do not carry out any step, directly finish this handling process; Otherwise just carry out described step S103.Particularly, can be by current display frame be judged at the described coordinate of taking the photograph in advance in the image whether described current display frame arrives the described high order end of taking the photograph image in advance, for example then show can't mobile to the left more described current display frame when the abscissa in the upper left corner of described current display frame is consistent with the abscissa in the described upper left corner of taking the photograph image in advance, does not repeat them here.
Determining by above-mentioned determining step and can't select to move described display frame that then can any feedback not be made in user's operation, judged result is the situation of "Yes" among the step S122 for example embodiment illustrated in fig. 4 according to the user; Also can be by dialog box prompting user can not left or move right (specifically determining) according to the operation requests that the user sent; Perhaps change in the example, inform that by auditory tone cues " Beep " or similar auditory tone cues the user can't finish its desired operation, does not repeat them here at one.
Above-mentioned Fig. 2 to Fig. 4 has described the idiographic flow of control method provided by the invention by the mode of flow chart, Fig. 5 illustrates according to a specific embodiment of the present invention, uses the schematic diagram of architectural framework of the supervisory control system of control device provided by the invention in the video access unit in mobile network's video monitoring system.Mobile network's video monitoring service is that the fixed network video monitoring service is expanded, the new business that proposes on the basis of fixed network video monitoring.Move the mode that inserts has been enriched only provides fixing access in the fixed network video monitoring service limitation by providing, the fixed network video monitoring also can be conducted interviews by moving the mode that inserts, portable terminals such as realization mobile phone are to the share and access of fixed network video monitoring resource, thus realization mobile network video monitoring service.
Particularly, right side shown in Figure 5 is the fixed network video monitoring system, and the left side is the mobile network, and mobile phone (mobile phone), palmtop PC mobile accessing terminal such as (PDA) are linked into the mobile network.Because the fixed network video monitoring system only provides the fixedly mode of access, for allow mobile phone etc. mobile access terminal by necessarily then mode also can browse the monitoring resource that the fixed network video monitoring provides, need realize conversion by the network element of a video access unit.
Among Fig. 5, client software of prepackage on portable terminals such as mobile phone, can play the real-time monitored picture that the fixed network video monitoring system is provided by portable terminals such as this client software mobile phones, and can video flowing be recorded a video, so that subsequent query, have access to and playing back videos.In Fig. 5, mobile portal is the service portal that the service provider provided, and the fixed network video monitoring platform is the core network element of fixed network video monitoring system, and the control module of functions such as session control, scheduling controlling is provided.Medium change the module that Dispatching Unit is a video circulation distribution function.Front monitoring front-end is an encoder, becomes video flowing behind the analog passband signal over-sampling that will receive from camera, quantification, the coding.
Portable terminals such as mobile phone by the flow process of the real-time monitored picture that the client software broadcast fixed network video monitoring system that is installed in it provides are:
1, the user who has ordered mobile network's video monitoring service browses the real-time monitoring that the fixed network video monitoring system provides by portable terminals such as mobile phones to video access unit transmission request;
2, the video access unit is transmitted request to the fixed network video monitoring platform;
3, after request was passed through, fixed network video monitoring platform indication front monitoring front-end changeed Dispatching Unit to medium and sends video flowing, and medium commentaries on classics Dispatching Unit is transmitted video flowing to the video access unit then.To portable terminal quantity such as mobile phones is not under the too big situation, and front monitoring front-end also can directly send video flowing to the video access unit;
4, the video access unit is converted into the video flowing that receives portable terminals such as being transmitted to mobile phone behind the video flowing that meets 3GPP (third generation partnership projects, 3rd Generation Partnership Project) standard that portable terminal such as mobile phone can receive again;
5, the mobile client software on the portable terminal such as mobile phone is play the real-time monitored picture that the fixed network video monitoring system provides.
If mobile phone users such as mobile phone wish to wait camera to carry out PTZ control, portable terminals such as mobile phone send Session Initiation Protocol (session initiation protocol by mobile client software to the video access unit, Session Initial Protocol) INFO requires the camera of front monitoring front-end is carried out PTZ control.The video access unit is transmitted to the fixed network video monitoring system after this INFO is converted into the INFO that meets the requirement of fixed network video monitoring system again.So just realized that portable terminals such as mobile phone carry out PTZ control to the camera of front monitoring front-end.
Further, those skilled in the art understand, under above-mentioned framework shown in Figure 5, in order to realize the camera head that does not possess the PTZ function being carried out PTZ control based on Session Initiation Protocol, preferably, expand in the INFO of described Session Initiation Protocol message header being carried out parameter, the video access unit is judged after receiving this message,, the parameter that expands thinks that requirement video access unit realizes that camera to no PTZ function carries out PTZ and controls if existing, otherwise, if this expansion parameter does not exist, then the video access unit thinks identical with traditional scheme, and portable terminals such as realization mobile phone carry out PTZ control to the camera of supporting the PTZ function.
Expand standard in order to meet Session Initiation Protocol as much as possible, reuse require parameter in the Session Initiation Protocol, but describe and require the video access unit to realize the common camera of not supporting PTZ is carried out PTZ control carrying new information in the require parameter.Particularly, portable terminal such as mobile phone sends to by mobile client software in the INFO of video access unit and expands a require:virtualPTZ parameter.So portable terminals such as mobile phone by the INFO that mobile client software sends to the video access unit are:
INFO?sip:xxx
Require:virtualPTZ
To：xxx
From：xxx
CSeq：xxx?INFO
Call-ID：xxx
Max-Forwards：xxx
Via：xxx
Contact：xxx
Content-Type：application/video_surveillance+xml
Content-Length：xxx
＜!--PTZ control messages body--〉
<？xml?version＝″1.0″encoding＝″GB2312″？>
<Message?Verison＝″1.0″>
<Header?Message_Type＝″MSG_PTZ_SET″
Sequence_Number=" bag sequence number "
Session_ID=" session id "
Destination_ID=" communication destination device (ChannelNo@PU_ID) "
User_ID=" fixed network video monitoring Customs Assigned Number/MSISDN "
/>
＜IE_PTZ nOpId=" command code "
NPara1=" parameter 1 "
NPara2=" parameter 2 "
/>
</Message>
After the video access unit receives this message, find to exist the Require:virtualPTZ parameter, described message below the video access unit is responded:
200?OK
Require:virtualPTZ
To：xxx
From：xxx
CSeq：xxx?INFO
Call-ID：xxx
Max-Forwards：xxx
Via：xxx
Contact：xxx
Content-Type：application/video_surveillance+xml
Content-Length：xxx
＜!--PTZ controls the body of receiveing the response--〉
<？xml?version＝″1.0″encoding＝″GB2312″？>
<Message?Verison＝″1.0″>
<Header?Message_Type＝″MSG_PTZ_SET_RESP″
Sequence_Number=" bag sequence number "
Session_ID=" session id "
/>
＜!--message feedback--〉
＜IE_RESULT Value=" operating result " ErrorCode=" error code "/〉
</Message>
Wherein the cell coding is as shown in the table:
Preferably, above-mentioned request message is identical with the message body of " China Telecom's mobile global eye technical specification " defined with the entrained message body of receiveing the response.
After the video access unit receives the video flowing of medium commentaries on classics Dispatching Unit or front monitoring front-end transmission, elder generation's this video flowing of decoding, carry out corresponding upper and lower, left and right, reach amplification, reduction operation according to the instruction of mobile phone users such as mobile phone then, and then be encoded into the video flowing that meets the 3GPP coded format, the video access unit sends to video flowing portable terminals such as mobile phone again, plays real-time monitored picture by the mobile client software of portable terminals such as mobile phone.The effect that plays back is with the camera of supporting PTZ to be carried out the effect that PTZ control brought identical.
In a variation example embodiment illustrated in fig. 5, control device provided by the invention and control corresponding method can directly apply to the fixed network video control system.It will be appreciated by those skilled in the art that at the situation of fixed network simpler than situation at the mobile network, for example no longer need be at the conversion work that meets 3GPP coded format video flowing etc., do not repeat them here.
Fig. 6 illustrates according to another embodiment of the present invention, the operating result schematic diagram of in the network element device of video control system the camera head that does not possess the PTZ function being controlled.In this embodiment, the front end camera head obtains and takes the photograph image 32 in advance, frame of broken lines 311 and frame of broken lines 312 are represented described image 32 part corresponding with current display frame of taking the photograph in advance respectively, image 311 ', 312 ', 312 " and 312 " ' be handle the described current display frame that image 32 generates of taking the photograph in advance according to the PTZ control command in embodiment provided by the invention.Particularly, suppose present image 311 ' be current display frame, if will monitor the described image in the frame of broken lines 312 in the image 32 of taking the photograph in advance, then by " making progress again to the right earlier ", the described PTZ control command that " earlier upwards more to the right " or " to upper right " moves current display frame handle described take the photograph in advance image 32 generate images 312 ', further, handle the described image 32 of taking the photograph in advance by the described PTZ control command of " amplification " current display frame and generate image 312 "; further, handle the described image 32 of taking the photograph in advance by the described PTZ control command of " flip horizontal " and generate image 312 " '.
More specifically, the user is by described PTZ control commands of input such as keyboard, mouses, suppose current display frame be described image 311 ', if to make current display variation be described image 312 ', then the user can press or " → " and " ↑ " key of continuing to pin on the keyboard makes current display frame move to the upper right side continuously, moves to the upper right side and can also press " → ", " ← " after finishing, " ↑ " and " ↓ " key is adjusted current display frame among a small circle with the unit step-length; If will to make current display variation is image 312 "; then the user can control the described mouse that is complementary with user terminal and moves to the upper right side; treat that current display image moves to the roller that user behind the suitable position stirs the mouse that described and user terminal be complementary forward camera lens is furthered, even described frame of broken lines 312 ' in aircraft in current display frame, amplify.Certain user also can stir the roller described and mouse that user terminal is complementary earlier backward zooms out camera lens, then to upper right mobile current display frame, stirs the roller described and mouse that user terminal is complementary at last more forward camera lens is furthered.Preferably, can set that mouse roller is every stirs one grade to front/rear, 0.1 multiplying power is correspondingly amplified/is dwindled in then current display frame; If will to make current display variation is described image 312 " '; what then the user can use that keyboard comprises by described user terminal imports the coordinate at center of described frame of broken lines 312 or the coordinate in the lower left corner with the corresponding inputting interface of PTZ control command; and import the image way of output of 0.5 times of enlargement ratio and flip horizontal, then from following a moment the present reality image be described image 312 " '.
In the present embodiment, if when the described scope of taking the photograph image 32 is in advance shifted out in current display frame whole or in part, current display frame is shifted out the described gray value (supposing that the gray value scope is 0～255) of taking the photograph the part of image 32 in advance and preferably is set to 0 or 255.And in a variation example of present embodiment, can obtain a plurality of described images of taking the photograph in advance by the front end image capture device (camera head) of a plurality of different angles, wherein, above-mentioned a plurality of described angle of taking the photograph image in advance and being covered is 360 degree, current display frame this moment can be moved without restriction above-mentioned a plurality of described taking the photograph in advance in the image, for example the user continues to pin " → " key, and then current display image moves right always, with the comprehensive function of simulation PTZ camera.
Those skilled in the art understand, between the image 312 " ' and image 312 " is the relation of flip horizontal, but image 312 " ' be directly to obtain after treatment by the image in the described frame of broken lines 312; rather than image 312 " obtained after handling, that is to say, image 312 " ' and image 312 " be arranged side by side, exist a plurality of user terminals all to require same when taking the photograph image in advance and handling, then at a time different described user terminals can show described image 312 " ' and image 312 " respectively, does not repeat them here.
Fig. 7 illustrates a fourth embodiment in accordance with the invention, becomes the zoom and focus structural representation of the control device of side's control entirely to not possessing the camera head that becomes the full side's function of zoom and focus in the network element device of video control system.In the present embodiment, described control device 4 comprises the first receiving device 41 and first processing unit 42, wherein, described first receiving device 41 is used to receive the PTZ control command, and described first processing unit 42 is used for carrying out the PTZ control and treatment according to described PTZ control command to taking the photograph image in advance.Preferably, described PTZ instruction comprises can comprise multiple demand according to operating personnel's needs, it for example can be conventional PTZ control command, for example be moved to the left step-length of current display frame or a plurality of step-length, step-length of current display frame or a plurality of step-length for example move right again, step-length of current display frame or a plurality of step-length for example move up again, for example move down step-length of current display frame or a plurality of step-length again, for example amplifieroperation or reduction operation or the like are carried out in described current display frame again, wherein, described step-length can be a default operating unit.
Particularly, described first receiving device 41 preferably receives described PTZ control command by the Internet from a user terminal (terminal 93 for example shown in Figure 1) that is connected to the network element device of video control system directly or indirectly, wherein, those skilled in the art understand, operating personnel can realize described PTZ control command by the mouse that is complementary with described user terminal that slides, and for example preferably set to be moved to the left a unit and promptly to indicate control device provided by the invention to make camera head carry out the operation that is moved to the left a step-length; Again for example the roller key by mouse forward scrolling realization to amplification control command of display frame or the like.And change in the example at one, realize described PTZ control command by the keyboard of user terminal, particularly, press " → " key and send requirement the move right instruction of a step-length of current display frame, correspondingly, press " → " key continuously and then send continuous requirement the move right instruction of a step-length of current display frame; Again for example, pressing "-" key realizes display frame dwindled control command or the like.
Further, by the present invention, can also send irrealizable control command in the prior art, for example realize sending the instruction of " moving current display frame " to the upper left side by pressing " ← ", " ↑ " key on the keyboard that is complementary with described user terminal; Correspondingly, " → ", " ↓ " key of pressing on the keyboard realized the instruction of " moving current display frame to the lower right ".Again for example, the mouse that is complementary when described and user terminal is when any direction slides, be installed in the interior client software of described user terminal and correspondingly catch the glide direction of mouse, and determine the direction that requires described current display frame to move, thereby realize the arbitrarily angled mobile instruction of current display frame according to this glide direction.Change in the example at one, also can show a dialog box by pressing a menu, input requires described current display frame to move in this dialog box direction and step-length, for example input " 30 degree ", " 3 " expression are moved 3 step-lengths with current display frame to upper left side 30 degree, thereby are realized the picture move operation of arbitrarily angled any amplitude.It will be appreciated by those skilled in the art that according to such embodiment and variation example, in fact can realize any skew to current display frame, for example image upset, reversing, 360 are spent arbitrarily angled mobile, do not repeat them here.
Further, described first receiving device 41 sends to described first processing unit 42 with described PTZ control command and handles, particularly, described first processing unit 42 is at first determined corresponding with the described PTZ control command image of taking the photograph in advance, preferably, the PTZ control command that described first processing unit 42 sends according to different user terminals is determined the pairing image of taking the photograph in advance of this instruction, preferably, when picture of user terminal browsing, this picture based on take the photograph the image that image is exactly the PTZ control command correspondence sent of this user terminal in advance; Preferably, so captured image of the just current controlled camera head of image of taking the photograph does not in advance repeat them here.42 pairs of described images of taking the photograph in advance of described then first processing unit carry out the PTZ control and treatment, preferably, in the present embodiment, described first processing unit 42 comprises second processing unit 421, wherein, described second processing unit 421 is moved to the left described taking the photograph in the image in advance in the central point with current display frame, and with the central point display image of the central point after the translation as current display frame.Indicating current display frame to be moved to the left a step-length with the PTZ control command is example, suppose to take the photograph in advance the image that size of images is 100*100 pixel size (size), with this central point of taking the photograph image in advance as initial point (0,0), and current display frame has shown with (10,10) for the length of central point be 10, height is 8 image, the position that is current display frame is (5 for upper left corner coordinate, 14), lower right corner coordinate is (15,6) rectangular area, further, suppose that a step-length is 2 pixels, after then passing through the processing of described second processing unit 421, the central point of current display frame is changed to (8,10), last described second processing unit 42 to (user) terminal of sending described PTZ control command show the central point that obtains after described second processing unit 421 is handled be the image at center as described current display frame, thereby be implemented in the operation of the step-length that moves to left on the basis of former display frame.
One at present embodiment changes in the example, described first processing unit 42 can comprise the 3rd processing unit (not shown among Fig. 7), the manages any in device (not shown among Fig. 7) and the 5th processing unit (not shown among Fig. 7) everywhere or appoints multiple arrangement, wherein, described the 3rd processing unit is used for the central point of current display frame is moved right at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame, described manages device everywhere is used for the central point of current display frame is moved up at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame, described the 5th processing unit is used for the central point of current display frame is moved down at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame.Those skilled in the art at least can be in conjunction with the description of described second processing unit 421, the processing of managing device and the 5th processing unit 424 everywhere by described the 3rd processing unit, the realize present reality picture central point to the right, go up and move down, do not repeat them here.
And in another variation example of present embodiment, described first processing unit 42 also comprises the 6th processing unit 425 (not shown among Fig. 7) and the 7th processing unit 426 (not shown among Fig. 7), wherein, the central point that described the 6th processing unit is used for current display frame is that central point expands outwardly at the described image of taking the photograph in advance, and the image that will obtain after will expanding is to expand the ratio scaled down as current display frame, the central point that described the 7th processing unit is used for current display frame is that central point inwardly dwindles at the described image of taking the photograph in advance, and the image that will obtain after will dwindling amplifies as current display frame with the reduce in scale equal proportion.More specifically, described the 6th processing unit is before carrying out " zooming out " operation, described the 6th processing unit judges whether described current display frame is the described maximum area of taking the photograph image in advance earlier, if the judged result of described the 6th processing unit is sure, then described the 6th processing unit is not carried out any operation, and described second processing unit says that the described image of taking the photograph in advance sends to user terminal as current display image; Otherwise, if the judged result of described the 6th processing unit negates that then described the 6th control device is sampled to be used for the effect that simulating lens " zooms out " to described default image.Preferably, described the 7th processing unit judges that whether the resolution of described current display frame is greater than first threshold earlier before carrying out " furthering " operation, if the judged result of described the 7th processing unit is sure, then described the 7th processing unit carries out interpolation to be used for the effect that simulating lens " furthers " to described default image; Otherwise, as if the judged result of described the 7th processing unit negate, then described the 7th processing unit is not carried out any operation, and described second processing unit says that the described image of taking the photograph in advance sends to user terminal as current display image.It will be appreciated by those skilled in the art that the knowledge that relevant sampling and interpolation operation at least can reference digital image be handled realizes, does not repeat them here.
And in another variation example of present embodiment, described first processing unit 42 comprises the 8th processing unit (not shown among Fig. 7), the 9th processing unit (not shown among Fig. 7), the tenth processing unit (not shown among Fig. 7) and the 11 processing unit (not shown among Fig. 7), wherein, described the 8th processing unit is used for the central point of current display frame is moved to the upper left side at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame, described the 9th processing unit is used for the central point of current display frame is moved to upper right at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame, described the tenth processing unit is used for the central point of current display frame is moved left at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame, described the 11 processing unit is used for the central point of current display frame is moved to the lower right at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame.Those skilled in the art understand, the present invention simulates and realizes the PTZ function, therefore can obtain the image that needs the image from described taking the photograph in advance by corresponding coordinate, and do not have moving of actual front end image capture device, but consider that the user imports the custom and the convenience of described PTZ control command, in this variation example, provide above-mentioned processing unit to satisfy the comprehensive needs that move current display frame of user; Certainly change in the example at another, can allow user's input coordinate to move current display frame by described second processing unit, this influence flesh and blood of the present invention.
In conjunction with above-mentioned embodiment illustrated in fig. 7 and variation example, those skilled in the art understand, described first processing unit 42 can comprise in above-mentioned the 3rd processing unit to the 11 processing unit each or appoint multinomial, this depends on that what of function the described control device of requirement can finish, those skilled in the art can accept or reject said apparatus in conjunction with prior art and the foregoing description, do not repeat them here.
Routine with reference to above-mentioned Fig. 1 to variations embodiment illustrated in fig. 7 and corresponding, it will be appreciated by those skilled in the art that control device provided by the invention and control method can be applied in different video control systems and the different equipment.For example, preferably, embodiments of the invention can be applied to video monitoring system, for example " global eyes " monitoring business of implementing of China Telecom; Preferably, also can be applied to video conferencing system, not repeat them here.Further, embodiments of the invention both can be applied to simple video control system based on fixed network, also can be applied to video control system based on fixed network and mobile network, can also be applied to simple video control system based on the mobile network, can also be applied in the IPTV system, this does not influence flesh and blood of the present invention, does not repeat them here.
Be applied to different video control systems at embodiments of the invention, control device provided by the invention can be applied to different equipment.For example, in mobile network's video monitoring system, control device provided by the invention can be placed in video access unit (video access unit, VAU) in the equipment, also can be applied to medium changes in the Dispatching Unit, perhaps be applied to Video Interworking Gateway (Video Interworking Gateway, VIG) in.Again for example, in the video conference control system, control device provided by the invention can be placed in the multipoint control unit (MCU), perhaps is placed in gateway (GW) equipment, perhaps be placed in multipoint controller (MultipointController, MC) in.Again for example, in video monitoring system, control device provided by the invention can be placed in the video access unit, and (video access unit VAU) in the equipment, perhaps is placed in gateway (GW) equipment.
With reference to figure 1, it will be appreciated by those skilled in the art that the user can send the PTZ control command by various types of terminals 9.For example described terminal can be Control Room desktop computer 93, notebook, mobile phone 91 or any terminal that can be used to send user PTZ control command, the demonstration of acceptance pattern picture, does not repeat them here.
In essence, when the camera of supporting PTZ is carried out PTZ control, analog signal is carried out upper and lower, left and right, reached and amplify, dwindle, after front monitoring front-end is sampled, quantizes, encoded, sending video flowing to medium changes Dispatching Unit, and medium change Dispatching Unit and are transmitted to the video access unit again.Video flowing after perhaps front monitoring front-end directly will be encoded sends the video access unit to, and the video access unit is transmitted to portable terminals such as mobile phone again.And the technical program is that the execution that the camera of not supporting PTZ carries out PTZ control is realized by the video access unit.
The present invention can realize that the camera to not supporting PTZ that prior art all can't realize carries out PTZ control.The camera of PTZ is not supported in a large amount of existence in the existing network, and realizes that these a large amount of cameras of not supporting PTZ that exist are carried out PTZ control very high realistic meaning, can well improve the business experience of mobile network's video monitoring.This technology not only goes for mobile network's video monitoring service, and to other video traffic, every relating to carries out to the camera of not supporting PTZ that PTZ control requires, and adopts the technical program to realize.
More than specific embodiments of the invention are described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present invention.
Claims (12)
1. one kind becomes the control method that the full side of zoom and focus controls to not possessing the camera head that becomes the full side's function of zoom and focus in the network element device of video control system, it is characterized in that, comprises the steps:
A. receive the PTZ control command;
B. carry out the PTZ control and treatment according to described PTZ control command to taking the photograph image in advance.
2. method according to claim 1 is characterized in that, described PTZ control command comprises at least as in giving an order each:
-be moved to the left current display frame;
-current display frame moves right;
-current display frame moves up;
-move down current display frame;
-amplifieroperation is carried out in described current display frame;
-reduction operation is carried out in described current display frame;
-move current display frame to the upper left side;
-current display frame is moved in the below left;
-move current display frame to the lower right; Perhaps
-move current display frame to the upper right side.
3. method according to claim 1 and 2, wherein, described to taking the photograph in comprising the steps at least any of step that image carries out the PTZ control and treatment in advance:
-central point of current display frame is moved to the left described taking the photograph in the image in advance, and with the central point display image of the central point after the translation as current display frame;
-central point of current display frame is moved right described taking the photograph in the image in advance, and with the central point display image of the central point after the translation as current display frame;
-central point of current display frame is moved up described taking the photograph in the image in advance, and with the central point display image of the central point after the translation as current display frame;
-central point of current display frame is moved down described taking the photograph in the image in advance, and with the central point display image of the central point after the translation as current display frame;
-be that central point expands outwardly described taking the photograph in the image in advance with the central point of current display frame, and the image that will obtain after will expanding with expansion ratio scaled down as current display frame;
-be that central point inwardly dwindles described taking the photograph in the image in advance with the central point of current display frame, and the image that will obtain after will dwindling amplifies as current display frame with the reduce in scale equal proportion;
-central point of current display frame is moved to the upper left side described taking the photograph in the image in advance, and with the central point display image of the central point after the translation as current display frame;
-central point of current display frame is moved to upper right described taking the photograph in advance in the image, and with the central point display image of the central point after the translation as current display frame;
-central point of current display frame is moved below taking the photograph in the image left in advance described, and with the central point display image of the central point after the translation as current display frame; Perhaps
-central point of current display frame is moved to the lower right described taking the photograph in the image in advance, and with the central point display image of the central point after the translation as current display frame.
4. one kind becomes the control device that the full side of zoom and focus controls to not possessing the camera head that becomes the full side's function of zoom and focus in the network element device of video control system, it is characterized in that, comprising:
First receiving device is used to receive the PTZ control command; And
First processing unit is used for carrying out the PTZ control and treatment according to described PTZ control command to taking the photograph image in advance.
5. control device according to claim 4 is characterized in that, described PTZ control command comprises at least as in giving an order each:
-be moved to the left current display frame;
-current display frame moves right;
-current display frame moves up;
-move down current display frame;
-amplifieroperation is carried out in described current display frame;
-reduction operation is carried out in described current display frame;
-move current display frame to the upper left side;
-current display frame is moved in the below left;
-move current display frame to the lower right; Perhaps
-move current display frame to the upper right side.
6. according to claim 4 or 5 described control device, wherein, described first processing unit comprises at least as in the lower device any:
-the second processing unit is used for the central point of current display frame is moved to the left at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame;
-Di three processing unit are used for the central point of current display frame is moved right at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame;
-Di manages device everywhere, is used for the central point of current display frame is moved up at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame;
-Di five processing unit are used for the central point of current display frame is moved down at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame;
-Di six processing unit, the central point that is used for current display frame is that central point expands outwardly at the described image of taking the photograph in advance, and the image that will obtain after will expanding is to expand the ratio scaled down as current display frame;
-Di seven processing unit, the central point that is used for current display frame is that central point inwardly dwindles at the described image of taking the photograph in advance, and the image that will obtain after will dwindling amplifies as current display frame with the reduce in scale equal proportion;
-Di eight processing unit are used for the central point of current display frame is moved to the upper left side at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame;
-Di nine processing unit are used for the central point of current display frame is moved to upper right at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame;
-Di ten processing unit are used for the central point of current display frame is moved left at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame; Perhaps
-Di 11 processing unit are used for the central point of current display frame is moved to the lower right at the described image of taking the photograph in advance, and with the central point display image of the central point after the translation as current display frame.
7. control method according to claim 3 and/or control device according to claim 6, it is characterized in that, comprise mobile step-length and/or magnification ratio and/or reduce in scale in the described PTZ control command, described move operation moves according to moving step length and/or described dilation procedure expands according to described magnification ratio and/or described reduction operation is dwindled according to described reduce in scale.
8. according to each described control method and/or control device in the as above claim, it is characterized in that described current display frame is a described part of taking the photograph image in advance.
9. according to each described control method and/or control device in the as above claim, it is characterized in that the described image of taking the photograph is in advance obtained by the picked-up of front end picture pick-up device.
10. according to each described control method and/or control device in the as above claim, it is characterized in that the described image of taking the photograph is in advance transmitted via transmitting network element device.
11. according to each described control method and/or control device in the as above claim, it is characterized in that, described network element device comprise in the following equipment any or appoint multiple:
-gateway device;
-video access unit equipment;
-multipoint control unit equipment; Perhaps
-multipoint controller equipment.
12. a video control system is characterized in that, comprises in this intrasystem network element device according to each described control device in the claim 4 to 11.
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| CN103581695A (en) * | 2012-07-27 | 2014-02-12 | 永泰软件有限公司 | System and method for achieving access of mobile terminal to global eye |
| CN103581695B (en) * | 2012-07-27 | 2017-04-19 | 程治永 | System and method for achieving access of mobile terminal to global eye |
| CN105100591A (en) * | 2014-05-09 | 2015-11-25 | 霍尼韦尔国际公司 | System and method of precision remote PTZ control of IP cameras |
| CN105100591B (en) * | 2014-05-09 | 2019-11-05 | 霍尼韦尔国际公司 | The system and method for the accurate long-range PTZ control of IP video camera |
| CN107750452A (en) * | 2015-08-06 | 2018-03-02 | Lg 伊诺特有限公司 | Image processing apparatus |
| CN109819217A (en) * | 2019-02-14 | 2019-05-28 | 上海图丽信息技术有限公司 | A kind of monitoring is mobile to have access to system |
| CN113938614A (en) * | 2021-12-20 | 2022-01-14 | 苏州万店掌软件技术有限公司 | Video image zooming method, device, equipment and storage medium |
| CN113938614B (en) * | 2021-12-20 | 2022-03-22 | 苏州万店掌软件技术有限公司 | Video image zooming method, device, equipment and storage medium |
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