CN106162105A - Camera parameters control method in a kind of video monitoring system and device - Google Patents
Camera parameters control method in a kind of video monitoring system and device Download PDFInfo
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- CN106162105A CN106162105A CN201610739697.3A CN201610739697A CN106162105A CN 106162105 A CN106162105 A CN 106162105A CN 201610739697 A CN201610739697 A CN 201610739697A CN 106162105 A CN106162105 A CN 106162105A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The invention discloses the camera parameters control method in a kind of video monitoring system and device.In the method, determine the first video camera tracking destination object, first video camera and/or the video coding parameter of the current video camera not tracking destination object are set, make the video quality higher than the video camera currently not tracking destination object for the video quality of the first video camera, to realize for the monitored picture including destination object, Video data has higher quality, for the monitored picture not including destination object, Video data has relatively low quality, owing to the memory data output of the relatively low monitor video of quality is less, therefore, above-described embodiment is meeting the monitored picture to destination object, on the basis of the quality requirement of Video data, decrease the amount of storage of the overall monitoring data of video monitoring system, and reduce the power consumption of video monitoring system.
Description
Technical field
The present invention relates to monitoring field, particularly relate to the camera parameters control method in a kind of video monitoring system and dress
Put.
Background technology
Intelligent video monitoring is that computer vision field development in recent years is very fast, studies a more application direction.It
Computer vision technique can be utilized to carry out processing, analyze and understanding to the vision signal collecting, and based on this to regarding
Frequently monitoring system is controlled, so that video monitoring system possesses preferably intelligent and robustness.Intelligent video monitoring system
System is mainly concerned with the scientific knowledge of the aspects such as image procossing, computer vision, pattern-recognition, artificial intelligence, and its purposes is non-
Often extensively, civilian and military field has wider application prospect.
In current video monitoring system, video camera all uses identical code check storage monitoring data.In order to ensure prison
The quality of control data, code check is unsuitable too small；But bigger code check, the monitoring data volume that video camera can be caused to store is relatively big, system
Power consumption higher.
Content of the invention
Embodiments provide the camera parameters control method in a kind of video monitoring system, in order to realize to regarding
Frequently the video coding parameter of the video camera in monitoring system is configured.
Camera parameters control method in the video monitoring system that the embodiment of the present invention provides, comprising:
Determine the first video camera currently tracking destination object；
Described first video camera is set and/or the Video coding of the video camera currently not tracking described destination object is joined
Number, makes the video quality higher than the video camera currently not tracking destination object for the video quality of described first video camera.
Preferably, the described video coding parameter arranging described first video camera, one of comprises the following steps or any group
Close:
The code check of described first video camera is set, makes the code check of described first video camera be more than and currently do not track described mesh
The code check of the video camera of mark object；
The frame per second of described first video camera is set, makes the frame per second of described first video camera be more than and currently do not track described mesh
The frame per second of the video camera of mark object；
The I frame period rate of described first video camera is set, makes the I frame period rate of described first video camera be less than and currently do not chase after
The I frame period rate of the video camera to described destination object for the track.
Preferably, the described video coding parameter that the described video camera currently not tracking described destination object is set, bag
Include one of following steps or be combined:
The code check of the described video camera currently not tracking described destination object is set, makes the code check of described first video camera
Code check more than the video camera currently not tracking described destination object；
The frame per second of the described video camera currently not tracking described destination object is set, makes the arrangement of described first video camera
Frame per second more than the video camera currently not tracking described destination object；
The I frame period rate of the described video camera currently not tracking described destination object is set, makes described first video camera
I frame period rate less than the I frame period rate of the video camera currently not tracking described destination object.
Preferably, after determining the first video camera currently tracking destination object, also include:
Open the region of interest ROI coding mode of described first video camera.
Preferably, the described video coding parameter that the video camera currently not tracking described destination object is set, comprising:
According to following the trail of multi-path topology relation, determine the down hop video camera of described first video camera；Described down hop
Video camera is the video camera that destination object can enter its coverage after the coverage leaving the first video camera；
Described down hop video camera, the current video camera not tracking destination object in addition to down hop video camera are set
Video coding parameter, make the video quality of the described down hop video camera video quality less than described first video camera, be higher than
The video quality of the current video camera not tracking destination object in addition to described down hop video camera.
Preferably, the method also includes:
After described destination object leaves the coverage of described first video camera, the video of described first video camera is set
Coding parameter, makes video quality the regarding less than the video camera being currently able to track described destination object of described first video camera
Frequently quality.
Preferably, after described destination object leaves the coverage of described first video camera, also include:
Close the ROI coding mode of described first video camera.
Control centre's server that the embodiment of the present invention provides, comprising:
First determining module, for determining the first video camera currently tracking destination object；
Module is set, for the video camera arranging described first video camera and/or currently do not track described destination object
Video coding parameter, make the video quality of described first video camera regarding higher than the video camera currently not tracking destination object
Frequently quality.
Preferably, described module is set, specifically for performing one of following steps or any combination:
The code check of described first video camera is set, makes the code check of described first video camera be more than and currently do not track described mesh
The code check of the video camera of mark object；
The frame per second of described first video camera is set, makes the arrangement of described first video camera be more than and currently do not track described mesh
The frame per second of the video camera of mark object；
The I frame period rate of described first video camera is set, makes the I frame period rate of described first video camera be less than and currently do not chase after
The I frame period rate of the video camera to described destination object for the track.
Preferably, described module is set, specifically for performing one of following steps or any combination:
The code check of described first video camera is set, makes the code check of described first video camera be more than and currently do not track described mesh
The code check of the video camera of mark object；
The frame per second of described first video camera is set, makes the arrangement of described first video camera be more than and currently do not track described mesh
The frame per second of the video camera of mark object；
The I frame period rate of described first video camera is set, makes the I frame period rate of described first video camera be less than and currently do not chase after
The I frame period rate of the video camera to described destination object for the track.
Preferably, described module is set, is additionally operable to:
Open the region of interest ROI coding mode of described first video camera.
Preferably, this control centre's server also includes:
Second determining module, for according to following the trail of multi-path topology relation, determining the down hop of described first video camera
Video camera；Described down hop video camera is that destination object can enter its shooting model after the coverage leaving the first video camera
The video camera enclosing；
Described module is set, specifically for: arrange described down hop video camera, in addition to down hop video camera current not
Track the video coding parameter of the video camera of destination object, make the video quality of described down hop video camera be less than described first
The video quality of video camera, higher than regarding of the current video camera not tracking destination object in addition to described down hop video camera
Frequently quality.
Preferably, described module is set, is additionally operable to:
After described destination object leaves the coverage of described first video camera, the video of described first video camera is set
Coding parameter, makes video quality the regarding less than the video camera being currently able to track described destination object of described first video camera
Frequently quality.
Preferably, described module is set, is additionally operable to:
After described destination object leaves the coverage of described first video camera, close described first video camera
ROI coding mode.
In the above-described embodiments, determine and track the first video camera of destination object, the first video camera and/or current is set
Do not track the video coding parameter of the video camera of destination object, make the video quality of the first video camera be higher than and currently do not track
The video quality of the video camera of destination object, to realize for including the monitored picture of destination object, Video data has relatively
High quality, for not including the monitored picture of destination object, Video data has relatively low quality, owing to quality is relatively low
The memory data output of monitor video is less, and therefore, above-described embodiment is meeting to the monitored picture of destination object, Video data
On the basis of quality requirement, decrease the amount of storage of the overall monitoring data of video monitoring system, and reduce video monitoring system
The power consumption of system.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, required in embodiment being described below make
Accompanying drawing briefly introduce, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for this
From the point of view of the those of ordinary skill in field, on the premise of not paying creative work, can also be obtained it according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the configuration diagram of the video monitoring system being applicable to the embodiment of the present invention；
Camera parameters control method schematic flow sheet in the video monitoring system that Fig. 2 provides for the embodiment of the present invention；
The schematic flow sheet of the specific embodiment that Fig. 3 provides for the embodiment of the present invention；
The structural representation of control centre's server that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing the present invention made into
One step ground describes in detail, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole enforcement
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of not making creative work
All other embodiment, broadly falls into the scope of protection of the invention.
In order to, while ensureing the quality of the monitored picture to destination object, Video data, reduce the monitoring number of storage
According to amount, reducing the power consumption of system, the present invention proposes the camera parameters control method in a kind of video monitoring system.
Introduce the meaning of the parameter that relates to of embodiment that the present invention provides and parameter first below.
In digital multimedia field, code check is the unit interval to play continuous print media such as the ratio of the audio or video after compression
Special quantity.Code check is bigger, and the quality of audio or video is higher, and data volume is bigger；Code check is less, and the quality of audio or video is got over
Low, data volume is less.
Variable bit rate (Variable Bit Rate is called for short VBR), i.e. revocable code check.VBR and cbr (constant bit rate) mould
Formula is different, and under VBR pattern, code check can change with the difference of the complexity of image.Encoding software compression when, root
According to video data, instant determination uses any bit rate, both ensure that quality, and had taken into account again file size.Make in this way
When, coded program can select from worst audio-visual quality (typically now compression ratio is the highest) to best audio-visual quality (general
Now compression ratio is minimum) between various video qualities.
Frame is the base unit of composition video.Frame per second is the quantity of the frame of display per second, and higher frame per second can obtain more
Smooth video.
Key frame is also called I frame, and it is the important frame in interframe compression coding, is the coded frame of a full frame compression, solves
Only complete image just can be reconstructed by the data of I frame during code.For example, terminal is sent to micro-control unit (Microcontroller
Unit, is called for short MCU), it is not a complete width picture to be sent to far-end every time, but only send a rear width picture front
The part changing on one width field basis, if network condition is not good, terminal is sent to long-range picture will be existed because losing
Wrap and the phenomenon that image flower screen, image card pause occurs, resend a width without I frame mechanism by terminal in this case
New complete image is to far-end, and the flower of far-end output image shields, Caton phenomenon can be increasingly severe.
In image processing field, area-of-interest (region of interest is called for short ROI) selects from image
One image-region, this region is the emphasis that graphical analysis is paid close attention to, and delineation ROI region is to be further processed.Make
Draw a circle to approve target with ROI, it is possible to reduce process the time, increase precision.
See Fig. 1, be a kind of video monitoring system that can be applicable to the embodiment of the present invention.As it can be seen, video monitoring
System can include control centre's server, client and multiple video camera.Wherein, each video camera passes through the network equipment
Being connected with control centre server, client is connected with control centre server by the network equipment.Number is mainly responsible for by video camera
According to collection and transmission；It is mutual that client is mainly responsible between this video monitoring system and user, including display video monitoring number
According to, receive user delineation destination object；Control centre's server is mainly tracked, controls the code of video camera to destination object
Rate, it is preferable that control centre's server can also pre-build tracking multi-path topology relation, utilizes this tracking path topology
The movement locus to destination object for the structural relation carries out anticipation.
Specifically, above-mentioned client can show the video camera institute that all or part is connected with control centre server simultaneously
The monitoring data collecting.This client can also only show, according to the setting of user, the monitoring that one of them camera acquisition arrives
Data, for example, when this video monitoring system is carrying out target tracking, this client can only show can track target
The monitoring data that the video camera of object is collected, with the movement of this destination object, the monitoring data that client shows are permissible
Switch between the monitoring data that different cameras collects, so that user can be by client real-time monitored to destination object.
Alternatively, above-mentioned client also can be integrated in the middle of control centre's server.
This system can apply to Indoor Video, and for example, a lot of families can select to install multiple camera at home, is used for
Pay close attention to the every act and every move of child whenever and wherever possible.It is, of course, also possible to be applied to the monitoring scene of other indoor or outdoors.
As a example by the above-mentioned video monitoring system being applied in family and being monitored child, the prison of child can be tracked
Control data are that the head of a family is of interest, and for the monitoring data followed the trail of less than child, the head of a family is simultaneously not concerned with.And the embodiment of the present invention
Camera parameters control method in the video monitoring system providing, so that the monitor video tracking child has higher
Quality, and the monitor video that the head of a family is not concerned with, its video quality can be reduced, and then realize ensureing to track child
Monitor video quality while, reduce the amount of storage of the monitoring data of this video monitoring system, and reduce this video monitoring
The power consumption of system.
When application video monitoring system as shown in Figure 1 carries out destination object tracking, user can be shown in client
On the monitored picture of each camera acquisition showing, the destination object followed the trail of is wanted in directly delineation.For example, user can be from each shooting
In collection picture in machine, selecting in the shooting picture of the video camera being currently able to photograph child, delineation is creeped
Child；Control centre's server obtains the destination object of user's delineation by client, carries out feature extraction to it, meanwhile,
Control centre's server can also get the mark of the video camera being currently able to photograph child.
Alternatively, after this video monitoring system can be by repeatedly drawing a circle to approve target object, repeatedly characteristic information extraction, to mesh
The characteristic information of mark object carries out integrated treatment, to improve the accuracy of detection to destination object.For example, when destination object behave or
During animal, owing to its limbs form can change, if only carrying out target delineation, a feature extraction, may result in identification
Rate reduces, and affects Consumer's Experience.
After determining the destination object followed the trail of, the camera parameters control method that the embodiment of the present invention can be used to provide is adjusted
The video coding parameter of joint video camera.
See Fig. 2, for the flow process of the camera parameters control method in the video monitoring system that the embodiment of the present invention provides
Schematic diagram, the method can be realized by control centre's server.As it can be seen, the method includes:
Step 201, determination currently track the first video camera of destination object.
Step 202, the first video camera is set and/or does not currently track the Video coding of video camera of described destination object
Parameter, makes the video quality higher than the video camera currently not tracking destination object for the video quality of the first video camera.
When performing above-mentioned steps 201, in certain embodiments: when user is by client delineation destination object, control
Central server processed can be directly obtained the mark of the video camera A that can track destination object, and video camera A is and tracks
First video camera of destination object；After destination object leaves the coverage of video camera A, control centre's server can basis
The characteristic information extracting, the monitoring number that the video camera being connected with this control centre's server by the network equipment is collected
According to detecting, detecting whether to track destination object, if detecting, video camera B tracks destination object, then by true for video camera B
It is set to the first video camera tracking destination object.
Alternatively, when this video monitoring system is not carried out the task of following the trail of destination object, can be by arranging video camera
Initial video coding parameter so that the video of all camera acquisition lower quality, correspondingly, in above-mentioned steps 202, if
Put the video coding parameter of the first video camera tracking destination object, so that the video quality of the first video camera is not higher than currently
Track the video quality of the video camera of destination object.
Alternatively, when this video monitoring system is not carried out the task of following the trail of destination object, can also be imaged by setting
The initial video coding parameter of machine so that the video of all camera acquisition better quality, correspondingly, in above-mentioned steps 203,
The video coding parameter of the video camera currently not tracking destination object is set, so that do not track the video camera of destination object
Video quality is relatively low.
Alternatively, when this video monitoring system is not carried out the task of following the trail of destination object, it is also possible to not to video camera
Video coding parameter carries out initial setting up, performs to follow the trail of the task of destination object in this video monitoring system, to all video cameras
Carry out video coding parameter setting, i.e. the video coding parameter of the first video camera is set so that the first video camera has higher
Video quality, arranges the video coding parameter of the video camera currently not tracking destination object, so that currently not tracking target
The video camera of object has relatively low video quality.
While changing video quality by arranging the video coding parameter of video camera, have also been changed the video data of storage
Size, video quality is high, then the data volume storing is big, and video quality is low, then the quantity storing is low.Therefore by above-mentioned step
Suddenly, it is possible to achieve on the basis of meeting the quality requirement of the monitored picture to destination object, Video data, video prison is decreased
The amount of storage of the overall monitoring data of Ore-controlling Role, and reduce the power consumption of video monitoring system.
Preferably, in above-mentioned steps 202, control centre's server arranges the video coding parameter of the first video camera, can
One of to comprise the following steps or any combination:
-code check of the first video camera is set, make the code check of the first video camera more than currently not tracking taking the photograph of destination object
The code check of camera.
-frame per second of the first video camera is set, make the frame per second of the first video camera more than currently not tracking taking the photograph of destination object
The frame per second of camera.
-the I frame period rate of the first video camera is set, make the I frame period rate of the first video camera less than currently not tracking mesh
The I frame period rate of the video camera of mark object.
Higher code check, higher frame per second, less I frame period rate are set, all can realize improving the video of video camera
Quality.
Preferably, the ROI coding mode of the first video camera can also be opened, it is possible to increase the detection essence to destination object
Degree, reduces image processing time.
Preferably, in above-mentioned steps 202, control centre's server arranges and does not currently track taking the photograph of described destination object
The video coding parameter of camera, one of may comprise steps of or any combination:
-setting does not currently track the code check of the video camera of destination object, makes the code check of the first video camera more than currently not
Track the code check of the video camera of destination object；
-setting does not currently track the frame per second of the video camera of destination object, makes the arrangement of the first video camera more than currently not
Track the frame per second of the video camera of destination object；
-setting does not currently track the I frame period rate of the video camera of destination object, makes the I frame period rate of the first video camera
I frame period rate less than the video camera currently not tracking destination object.
Wherein, the code check of the video camera currently not tracking destination object is set, currently can will not track target pair
The code check of the video camera of elephant is set to relatively low code check, it is also possible to be set to the video camera currently not tracking destination object
VBR coding mode.
Relatively low code check, relatively low frame per second, bigger I frame period rate are set, all can realize reducing the video of video camera
Quality, reduces the memory data output of video camera, can also realize reducing the power of video camera.
Preferably, this control centre's server is before performing the task of tracking destination object, can also be chased after by simulation
The mode of track obtains tracking multi-path topology relation, or obtains tracking multi-path topology relation by modes such as downloads.
According to following the trail of multi-path topology relation, anticipation can be carried out to the movement locus of destination object, it is possible to increase follow the trail of target pair
The efficiency of elephant.
This tracking multi-path topology relation, the topological structure not building according only to the geographical position of video camera, because
The topological structure building according only to the geographical position of video camera is not necessarily suitable tracing process.For example, although two video cameras
Geographical position is close, but due to the obstruct of barrier, destination object, after the coverage through a video camera, substantially can not
Can enter the coverage of another video camera at short notice, this situation will affect the efficiency of target tracking.
This tracking multi-path topology relation, can be the direction of motion based on destination object, or based on destination object
The region of process when leaving the video camera coverage being currently able to track destination object and set up.For example, video camera A exists
In the direction of motion to the left, corresponding down hop video camera is video camera B, i.e. represents when target object is taken the photograph to left movement leaving
After the coverage of camera A, video camera B coverage can be entered；Video camera C at region f corresponding down hop video camera is
Video camera D, i.e. represent destination object after the coverage that the region f in the coverage of video camera C leaves video camera C,
The coverage of video camera D can be entered.Additionally, video camera is on some direction or corresponding on some region
The quantity of down hop video camera can be one or more.
After above-mentioned steps 201, control centre's server can also determine the according to following the trail of multi-path topology relation
The down hop video camera of one video camera, i.e. destination object can enter and have after the coverage leaving the first video camera
The bigger video camera possibly into its coverage.
Correspondingly, control centre's server can also arrange the video coding parameter of down hop video camera so that down hop
The video quality of video camera is less than the video quality of video camera, higher than not tracking destination object in addition to down hop video camera
The video quality of video camera.
Specifically, control centre's server arranges the video coding parameter of down hop video camera, may comprise steps of
One of or any combination:
-code check of down hop video camera is set, make the code check less than the first video camera for the code check of down hop video camera, be more than
The code check of the current video camera not tracking destination object in addition to down hop video camera；
-frame per second of down hop video camera is set, make the frame per second less than the first video camera for the frame per second of down hop video camera, be more than
The frame per second of the current video camera not tracking destination object in addition to down hop video camera；
-the I frame period rate of down hop video camera is set, make the I frame period rate of down hop video camera be more than the first video camera
I frame period rate, less than the I frame period rate of the current video camera not tracking destination object in addition to down hop video camera.
The code check of down hop video camera is set to middle-bracket code check so that down hop video camera is not tracking
When destination object, it is not necessary to the higher substantial amounts of monitoring data not including destination object of code check storage；Meanwhile, it is capable to
Prevent the prison that destination object causes including destination object due to relatively low code check when having just enter into this down hop video camera
The quality of control data is not good.The frame per second of down hop video camera, I frame period rate are set to intermediate grade, and it acts on and by next
The effect that the code check of jump video camera is set to middle-bracket code check is identical.
After destination object enters the coverage of video camera A, video camera A is defined as first and takes the photograph by control centre's server
Camera, is configured to the video coding parameter of video camera A, so that the video quality of video camera A regarding higher than other video cameras
Frequently quality.When destination object leaves the coverage of video camera A, after entering the coverage of video camera B, control centre's server
Video camera B is defined as the first video camera, and the video coding parameter of video camera B is set, make the video quality of video camera B be more than
The video quality of other video cameras, it is preferable that control centre's server also sets up the video coding parameter of video camera A, so that taking the photograph
The video quality less than video camera B for the video quality of camera A.Alternatively, control centre's server can also close video camera A's
ROI coding mode, to reduce video camera A, the operating load of control centre's server.
In the above-described embodiments, determine and track the first video camera of destination object, the first video camera and/or current is set
Do not track the video coding parameter of the video camera of destination object, make the video quality of the first video camera be higher than and currently do not track
The video quality of the video camera of destination object, to realize for including the monitored picture of destination object, Video data has relatively
High quality, for not including the monitored picture of destination object, Video data has relatively low quality, owing to quality is relatively low
The memory data output of monitor video is less, and therefore, above-described embodiment is meeting to the monitored picture of destination object, Video data
On the basis of quality requirement, decrease the amount of storage of the overall monitoring data of video monitoring system, and reduce video monitoring system
The power consumption of system.
In order to be more clearly understood that the above embodiment of the present invention, below with a specific embodiment, above-mentioned to the present invention
The process that implements of embodiment is described.The schematic flow sheet of this specific embodiment is as shown in Figure 3.
The parameter of video camera is divided into Three Estate by S301, control centre's server in advance, respectively high-grade, medium
Level and inferior grade.
Wherein, high-grade corresponding parameter is: code check is 4Mbps, and I frame period rate is 50 (i.e. every 50 frames one I of generation
Frame), frame per second is 60fps, opens ROI coding mode.
The corresponding parameter of middle grade is: code check is 4Mbps, and I frame period rate is 100 (i.e. every 100 frames generate an I frame),
Frame per second is 60fps.
The corresponding parameter of inferior grade is: I frame period rate is 200 (i.e. every 200 frames generate an I frame), and frame per second is 30fps,
Code check is 1Mbps or uses VBR coding mode.
Certainly, the numerical value of above-mentioned parameter is only an example of the embodiment of the present invention, according to the need of different application scenarios
Asking, above-mentioned parameter can arrange other numerical value, and the present invention is without limitation.
S302, the characteristic information receiving the destination object of client delineation, and currently track the shooting of destination object
The mark of machine.
S303, the video camera currently tracking destination object is set to the first video camera, and by the ginseng of the first video camera
Number is set to high-grade corresponding parameter.
S304, according to follow the trail of multi-path topology relation, determine the down hop video camera of the first video camera, and take the photograph first
The parameter of the down hop video camera of camera is set to the corresponding parameter of middle grade.
S305, the parameter of other video cameras is set to the corresponding parameter of inferior grade.
S306, when destination object leaves the coverage of the first video camera, it is judged that whether destination object enters down hop
Video camera, if entering, then proceeds to S303, otherwise, proceeds to S307.
S307, stopping are followed the trail of, and the parameter by all video cameras is set to the corresponding parameter of inferior grade.
By above-mentioned steps, while i.e. may be implemented in the quality ensureing the monitored picture to destination object, Video data,
Decrease again the amount of storage of the overall monitoring data of video monitoring system, and reduce the power consumption of video monitoring system.
Based on identical technology design, the embodiment of the present invention additionally provides a kind of control centre server, on realizing
State embodiment of the method.
See Fig. 4, the structural representation of control centre's server providing for the embodiment of the present invention, as it can be seen, this control
Central server processed includes: the 401st, the first determining module arranges module 402, and further, this control centre's server is all right
Including the second determining module 403.
First determining module 401, for determining the first video camera currently tracking destination object.
Module 402 is set, for arranging the video of the first video camera and/or the current video camera not tracking destination object
Coding parameter, makes the video quality higher than the video camera currently not tracking destination object for the video quality of the first video camera.
Alternatively, module is set, specifically for performing one of following steps or any combination:
The code check of the first video camera is set, makes the code check of the first video camera more than the shooting currently not tracking destination object
The code check of machine；
The frame per second of the first video camera is set, makes arranging more than the shooting currently not tracking destination object of the first video camera
The frame per second of machine；
The I frame period rate of the first video camera is set, makes the I frame period rate of the first video camera be less than and currently do not track target
The I frame period rate of the video camera of object.
Preferably, module is set, specifically for performing one of following steps or any combination:
The code check of the first video camera is set, makes the code check of the first video camera more than the shooting currently not tracking destination object
The code check of machine；
The frame per second of the first video camera is set, makes arranging more than the shooting currently not tracking destination object of the first video camera
The frame per second of machine；
The I frame period rate of the first video camera is set, makes the I frame period rate of the first video camera be less than and currently do not track target
The I frame period rate of the video camera of object.
Preferably, module is set, is additionally operable to:
Open the ROI coding mode of the first video camera.
Preferably, this control centre's server, also includes:
Second determining module 403, for according to following the trail of multi-path topology relation, determining that the down hop of the first video camera is taken the photograph
Camera；Down hop video camera is that destination object can enter taking the photograph of its coverage after the coverage leaving the first video camera
Camera；
Module is set, is additionally operable to: the video coding parameter of down hop video camera is set, make the video matter of down hop video camera
Amount is less than the video quality of the first video camera, higher than the current shooting not tracking destination object in addition to down hop video camera
The video quality of machine.
Preferably, module is set, is additionally operable to:
After destination object leaves the coverage of the first video camera, the video coding parameter of the first video camera is set, makes
The video quality of the first video camera is less than the video quality being currently able to track the video camera of destination object.
Preferably, module is set, is additionally operable to:
Close the ROI coding mode of the first video camera.
In the above-described embodiments, determine and track the first video camera of destination object, the first video camera and/or current is set
Do not track the video coding parameter of the video camera of destination object, make the video quality of the first video camera be higher than and currently do not track
The video quality of the video camera of destination object, to realize for including the monitored picture of destination object, Video data has relatively
High quality, for not including the monitored picture of destination object, Video data has relatively low quality, owing to quality is relatively low
The memory data output of monitor video is less, and therefore, above-described embodiment is meeting to the monitored picture of destination object, Video data
On the basis of quality requirement, decrease the amount of storage of the overall monitoring data of video monitoring system, and reduce video monitoring system
The power consumption of system.
The present invention is the flow process with reference to method according to embodiments of the present invention, equipment (system) and computer program
Figure and/or block diagram describe.It should be understood that can often first-class by computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
Instruct the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce
A raw machine so that the instruction being performed by the processor of computer or other programmable data processing device is produced in fact
The device of the function specified in present one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to
Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter
Perform sequence of operations step on calculation machine or other programmable devices producing computer implemented process, thus at computer or
The instruction performing on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function specified in individual square frame or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into all changes and the modification of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these changes and modification.
Claims (10)
1. the camera parameters control method in a video monitoring system, it is characterised in that include:
Determine the first video camera currently tracking destination object；
Described first video camera and/or the video coding parameter of the current video camera not tracking described destination object are set, make
The video quality of described first video camera is higher than the video quality of the video camera currently not tracking destination object.
2. the method for claim 1, it is characterised in that the described video coding parameter that described first video camera is set,
One of comprise the following steps or any combination:
The code check of described first video camera is set, makes the code check of described first video camera be more than and currently do not track described target pair
The code check of the video camera of elephant；
The frame per second of described first video camera is set, makes the frame per second of described first video camera be more than and currently do not track described target pair
The frame per second of the video camera of elephant；
The I frame period rate of described first video camera is set, makes the I frame period rate of described first video camera be less than and currently do not track
The I frame period rate of the video camera of described destination object.
3. the method for claim 1, it is characterised in that described setting described does not currently track described destination object
The video coding parameter of video camera, one of comprises the following steps or any combination:
The code check of the described video camera currently not tracking described destination object is set, makes the code check of described first video camera be more than
The code check of the current video camera not tracking described destination object；
The frame per second of the described video camera currently not tracking described destination object is set, makes the arrangement of described first video camera be more than
The frame per second of the current video camera not tracking described destination object；
The I frame period rate of the described video camera currently not tracking described destination object is set, makes the I frame of described first video camera
Interval rate is less than the I frame period rate of the video camera currently not tracking described destination object.
4. the method for claim 1, it is characterised in that determine currently track destination object the first video camera it
After, also include:
Open the region of interest ROI coding mode of described first video camera.
5. the method for claim 1, it is characterised in that described setting does not currently track the shooting of described destination object
The video coding parameter of machine, comprising:
According to following the trail of multi-path topology relation, determine the down hop video camera of described first video camera；Described down hop images
Machine is the video camera that destination object can enter its coverage after the coverage leaving the first video camera；
Described down hop video camera, the regarding of the current video camera not tracking destination object in addition to down hop video camera are set
Frequently coding parameter, makes the video quality less than described first video camera for the video quality of described down hop video camera, higher than except institute
State the video quality of the current video camera not tracking destination object beyond down hop video camera.
6. the method for claim 1, it is characterised in that also include:
After described destination object leaves the coverage of described first video camera, the Video coding of described first video camera is set
Parameter, makes the video quality of described first video camera less than the video matter being currently able to track the video camera of described destination object
Amount.
7. method as claimed in claim 6, it is characterised in that leave the shooting of described first video camera at described destination object
After scope, also include:
Close the ROI coding mode of described first video camera.
8. control centre's server, it is characterised in that include:
First determining module, for determining the first video camera currently tracking destination object；
Module is set, for the regarding of video camera arranging described first video camera and/or currently do not track described destination object
Frequently coding parameter, makes the video matter higher than the video camera currently not tracking destination object for the video quality of described first video camera
Amount.
9. control centre as claimed in claim 8 server, it is characterised in that described module is set, specifically for perform with
One of lower step or any combination:
The code check of described first video camera is set, makes the code check of described first video camera be more than and currently do not track described target pair
The code check of the video camera of elephant；
The frame per second of described first video camera is set, makes the arrangement of described first video camera be more than and currently do not track described target pair
The frame per second of the video camera of elephant；
The I frame period rate of described first video camera is set, makes the I frame period rate of described first video camera be less than and currently do not track
The I frame period rate of the video camera of described destination object.
10. control centre as claimed in claim 8 server, it is characterised in that described module is set, specifically for perform with
One of lower step or any combination:
The code check of described first video camera is set, makes the code check of described first video camera be more than and currently do not track described target pair
The code check of the video camera of elephant；
The frame per second of described first video camera is set, makes the arrangement of described first video camera be more than and currently do not track described target pair
The frame per second of the video camera of elephant；
The I frame period rate of described first video camera is set, makes the I frame period rate of described first video camera be less than and currently do not track
The I frame period rate of the video camera of described destination object.
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