CN106303403B - Monitoring device presetting bit setting, switching method and system - Google Patents

Abstract

The present invention provides a kind of monitoring device presetting bit setting, switching method and systems, wherein monitoring device presetting bit setting method and system obtain the monitoring risk entropy of multiple monitoring images and each monitoring image of the monitoring device under multiple groups presetting bit first, each monitoring image is ranked according still further to the descending sequence of monitoring risk entropy, sets preferred presetting bit near the preceding corresponding one or more groups of presetting bits of one or more monitoring images for ranking.Monitoring device presetting bit setting method and system of the present invention obtain its corresponding monitoring risk entropy by automatically analyze to each monitoring image; and choose preferred presetting bit of the corresponding presetting bit of monitoring image as monitoring device when monitoring risk entropy numerical value maximum; it can ensure to get best monitoring effect; setting rationally, overcomes in the prior art since operator's experience deficiency makes presetting bit that unreasonable defect be arranged.

Description

Monitoring device presetting bit setting, switching method and system

Technical field

The present invention relates to field of security technology, relate in particular to a kind of monitoring device presetting bit setting, switching method and System.

Background technique

The view position of video camera is commonly referred to as presetting bit, is mainly determined by following parameter: the focal length f of camera lens, Angle theta formed by reference direction in the projection and horizontal plane of camera optical axis extended line in the horizontal plane, camera optical axis prolong Pitch angle Ф made of long line and vertical direction fold.The definition of θ, Ф respectively refer to Fig. 1 and Fig. 2.Each group of determination (f, θ, Ф) be a video camera presetting bit, presetting bit (f, θ, Ф) corresponding to a given monitor area be it is determining, The calculating of presetting bit can refer to the calculation method of general geometric optics.

Currently, video monitoring system mainly uses two major classes type monitor camera, respectively the video camera of fixed viewpoint and Visual angle can control video camera.

The video camera of fixed viewpoint is generally commonly called as " gunlock ", the installation position angle of this video camera be it is fixed, usually Using tight shot, therefore, the presetting bit after gunlock installation be it is fixed, visual angle or field range are also fixed, prison Control is limited in scope and not flexible.During actual video supervisory control system running, the presetting bit master of the video camera of fixed viewpoint It will be by manually according to monitoring experience setting.

Visual angle can control video camera to be commonly called as " ball machine ", is installed on controllable holder or is the integrated design with holder, and mirror Head focus adjustable can realize the functions such as rotation, zoom by backstage according to the needs of monitoring, to change monitoring visual field model It encloses, can efficiently solve that " gunlock " monitoring range is limited and inflexible problem.In actual video supervisory control system running, depending on Angle can control the presetting bit of video camera, and there are several types of settings, switching method: first is that setting is pre- in advance manually according to monitoring experience The switching mode of set and preset interdigit, but personnel and the case where vehicle are ever-changing, the stream of people, wagon flow in actual scene And the generation of security incident, with time variation, the switching mode of the presetting bit pre-set and preset interdigit is difficult to so fast The scene of speed variation carries out effective monitoring；Second is that manually adjusting camera position and monitoring angle, such as according to temporary needs After not operating for a long time, some presetting bit being originally arranged will be automatically restored to；Third is that be not provided with any presetting bit, all according to Rely manually adjustment monitoring position.But because second and the third mode, are mainly manually adjusted, but front end is taken the photograph The quantity of camera is far longer than the quantity of operator, and difficult to realize all use to the controllable video camera in each visual angle manually adjusts.

In practical application, because there are certain contradiction, visual field models between the field range and visual quality of monitored picture Enclose more wide in range, the overall scenario situation information of acquisition is more, but the detailed information of the objectives obtained is fewer, visual quality Also poorer；If otherwise macroscopic information, visual field model cannot be controlled again when the target detail information of acquisition more (visual quality is high) Enclose narrower, the overall scenario situation information of acquisition is fewer.Therefore, the setting of presetting bit has the experience of operator very high Requirement, and in the prior art, either the video camera of fixed viewpoint or visual angle can control video camera, and presetting bit is by people Work is arranged according to monitoring experience, it is possible to which because operator's experience deficiency makes presetting bit, setting is unreasonable, causes to monitor Effect is undesirable.

Summary of the invention

For this purpose, technical problem to be solved by the present invention lies in be possible in the prior art because operator's experience is insufficient So that presetting bit setting is unreasonable, cause monitoring effect undesirable.

In order to solve the above technical problems, technical scheme is as follows:

The present invention provides a kind of monitoring device presetting bit setting methods, comprising:

Obtain the monitoring risk entropy of multiple monitoring images and each monitoring image of the monitoring device under multiple groups presetting bit, institute Monitoring risk entropy is stated to be used to indicate monitoring device to unsafe incidents in institute's monitoring scene or pay close attention to the risk or information of event Grasping level；

Each monitoring image is ranked according to the descending sequence of monitoring risk entropy, will be ranked near preceding one Or the corresponding one or more groups of presetting bits of multiple monitoring images are set as preferred presetting bit.

Monitoring device presetting bit setting method of the present invention, comprising:

Obtain wide-angle monitoring image when monitoring device is in maximum view position；

Wide-angle monitoring image is divided into multiple sub- monitoring images；

One of them sub- monitoring image is chosen as reference monitor image and obtains its monitoring risk entropy, the monitoring risk Entropy is used to indicate monitoring device to the risk of unsafe incidents in institute's monitoring scene or concern event or the Grasping level of information；

A sub- monitoring image adjacent with reference monitor image is incorporated to reference monitor image and obtains the prison after merging Control the monitoring risk entropy of image；

It, will if the monitoring risk entropy of the monitoring image after merging is less than or equal to the monitoring risk entropy of reference monitor image Reference monitor image merge as one after monitoring image and be no longer incorporated to new sub- monitoring image；

If the monitoring risk entropy of the monitoring image after merging is greater than the monitoring risk entropy of reference monitor image, by the merging Monitoring image afterwards is monitored monitoring risk of the risk entropy as new reference monitor image as new reference monitor image Entropy, and be back to and described a sub- monitoring image adjacent with reference monitor image is incorporated to reference monitor image and obtains merging The step of monitoring risk entropy of monitoring image afterwards；

The monitoring image after each merging is ranked according to the descending sequence of monitoring risk entropy, obtains ranking most One or more groups of presetting bits corresponding to monitoring image after forward one or more merging, are set to preferably preset Position.

Monitoring device presetting bit setting method of the present invention, obtaining the step of monitoring risk entropy includes:

Identify moving target, fixed target and/or the key monitoring region in monitoring image；

It obtains the motion information of moving target and the motion information is counted, obtain motion information statistical result, The statistical result include the number of moving target, spatio-temporal distribution density, the size of movement velocity, direction and track, Pass in and out scene or at least one of the position and duration that stop in the scene and time relevant to motion state；

Obtain the level of coverage of fixed target and/or key monitoring region in monitoring image, and fixed target and/or again Point monitoring area is at any time or the inherent risk of spatial variations；

Obtain the degree of conformity relationship between the visual information quality and monitoring requirement of monitoring image；

Monitoring device is obtained to fixed target and/or priority control area according to the level of coverage and the inherent risk First monitoring risk entropy of domain monitoring；

The security risk and moving target and fixation that moving target introduces are obtained according to the motion information statistical result Coupling risk between target and/or key monitoring region obtains monitoring device monitors moving target second accordingly Monitor risk entropy；

Risk entropy is monitored according to degree of conformity Relation acquisition third relevant to monitoring device visual information acquisition quality；

The first monitoring risk entropy, the second monitoring risk entropy and third monitoring risk entropy are weighted to obtain Monitor risk entropy.

Monitoring device presetting bit setting method of the present invention, it is described according to the level of coverage and the intrinsic wind Danger obtained in the step of the first monitoring risk entropy of the monitoring device to fixed target and/or priority control area monitoring, by such as Lower formula calculates the first monitoring risk entropy:

Wherein,

Priority control region

Ts_iIt is the extent of injury of i-th of fixed target when causing danger, Tw_jIt is that j-th of priority control region is occurring Extent of injury when dangerous, P_iIt is the probability that i-th of fixed target unsafe incidents occurs, P_jBe j-th of priority control region not The probability that security incident occurs, and Ts_i、Tw_j、P_i、P_jAt any time or spatial variations, A_inIt is emphasis control area in monitoring figure Area coverage as in, A_totalFor the gross area of monitoring image, S_1,iIt is the monitoring risk entropy of i-th of fixed target, S_1,jIt is jth The monitoring risk entropy in a priority control region, S₁It is the sum of the monitoring risk entropy in all fixed targets and/or priority control region.

Monitoring device presetting bit setting method of the present invention, described obtained according to the motion information statistical result are transported Coupling risk between security risk and moving target that moving-target introduces and fixed target and/or key monitoring region, according to This was obtained in the step of the second monitoring risk entropy that monitoring device monitors moving target, calculated second by following formula Monitor risk entropy:

S₂=(β₁S_M+β₂S_MS)

β₁β₂Respectively represent weight, S_MIt is monitoring risk entropy relevant to moving target itself, S_MSIt is moving target to fixation Target and/or emphasis monitor area generate the monitoring risk entropy threatened；

Wherein,

S_M=-T_Mlg(p|p_M)=- T_M(lgp+lgp_M)

S_MS=-T_Slg(p|P_MS)

T_MIt is determined by the security risk that moving target introduces, T_SIt is at any time or empty by fixed target and/or emphasis monitor area Between the inherent risk that changes determine that p is that moving target appears in the probability in monitoring image, P_MFor moving target unsafe incidents Probability of happening, P_MSFor the probability of happening of moving target and fixed target and/or key monitoring region couples event；ρ is movement For target in spatio-temporal distribution density, n is the number of moving target,For the movement velocity vector of moving target, t is movement The time attribute of target, Δ t are the duration that moving target stops in the scene,For moving target and fixed target and/or again Relative position between point monitoring area.

Monitoring device presetting bit setting method of the present invention, the visual information quality according to monitoring image and prison The step of degree of conformity Relation acquisition third monitoring risk entropy relevant to monitoring device visual information acquisition quality between control requirement In rapid, third is calculated by following formula and monitors risk entropy:

Wherein, θ_kK-th of the visual information represented in the degree of conformity relationship between visual information quality and monitoring requirement is adopted Collect the subjective or objective satisfaction of quality index, ω_kRepresent weight.

The present invention also provides a kind of monitoring device presetting bits obtained by above-mentioned monitoring device presetting bit setting method Between switching method, comprising:

Between the monitoring image according to corresponding to the statistical property and preferred presetting bit in the time of moving target and space Time and association spatially, set the switching time between preferred presetting bit and sequence.

The present invention also provides a kind of monitoring device presetting bits, and system is arranged, comprising:

Monitoring unit, for obtaining multiple monitoring images and each monitoring image of the monitoring device under multiple groups presetting bit Monitor that risk entropy, the monitoring risk entropy are used to indicate monitoring device to unsafe incidents in institute's monitoring scene or pay close attention to event The Grasping level of risk or information；

Presetting bit selection unit, for arranging according to the descending sequence of monitoring risk entropy each monitoring image Position sets preferred presetting bit near the preceding corresponding one or more groups of presetting bits of one or more monitoring images for ranking.

System is arranged in monitoring device presetting bit of the present invention, comprising:

Wide-angle monitoring image acquisition unit, for obtaining wide-angle monitoring figure when monitoring device is in maximum view position Picture；

Division unit, for wide-angle monitoring image to be divided into multiple sub- monitoring images；

Selection of datum unit, for choosing one of them sub- monitoring image as reference monitor image and obtaining its monitoring wind Dangerous entropy, it is described monitoring risk entropy be used for indicate monitoring device to unsafe incidents in institute's monitoring scene or pay close attention to event risk or The Grasping level of information；

Combining unit, for a sub- monitoring image adjacent with reference monitor image to be incorporated to reference monitor image and is obtained Take the monitoring risk entropy of the monitoring image after merging；

First processing units, the monitoring risk entropy for monitoring image after merging are less than or equal to reference monitor image Monitoring risk entropy when, monitoring image after reference monitor image is merged as one and be no longer incorporated to new sub- monitoring figure Picture；

The second processing unit is greater than the monitoring of reference monitor image for the monitoring risk entropy of monitoring image after merging When risk entropy, using the monitoring image after the merging as new reference monitor image, monitored risk entropy as new benchmark The monitoring risk entropy of monitoring image, and activate the combining unit；

Selection unit, for arranging according to the descending sequence of monitoring risk entropy the monitoring image after each merging Position obtains one or more groups of presetting bits corresponding to monitoring image of the ranking after preceding one or more merging, is set It is set to preferred presetting bit.

Monitoring device presetting bit of the present invention is arranged system, the monitoring unit, the selection of datum unit and It include monitoring risk entropy acquisition subelement in the combining unit, further comprising:

Identifier, for identification moving target in monitoring image, fixed target and/or key monitoring region；

Counter obtains movement letter for obtaining the motion information of moving target and counting to the motion information Cease statistical result, the statistical result include the number of moving target, spatio-temporal distribution density, the size of movement velocity, Direction and track, disengaging scene or the position and duration that stop in the scene and in the time relevant to motion state extremely It is one few；

First getter, for obtaining the level of coverage of fixed target and/or key monitoring region in monitoring image, and Fixed target and/or key monitoring region are at any time or the inherent risk of spatial variations；

Second getter, for obtaining the degree of conformity relationship between the visual information quality of monitoring image and monitoring requirement；

First monitoring risk entropy getter, for obtaining monitoring device according to the level of coverage and the inherent risk To the first monitoring risk entropy of fixed target and/or priority control area monitoring；

Second monitoring risk entropy getter, for obtaining the peace that moving target introduces according to the motion information statistical result Coupling risk between full blast danger and moving target and fixed target and/or key monitoring region, obtains monitoring device accordingly The second monitoring risk entropy that moving target is monitored；

Third monitors risk entropy getter, for being acquired according to the degree of conformity Relation acquisition and monitoring device visual information The relevant third of quality monitors risk entropy；

Monitor risk entropy getter, for will the first monitoring risk entropy, described second monitor risk entropy and described Third monitoring risk entropy weights to obtain monitoring risk entropy.

The above technical solution of the present invention has the following advantages over the prior art:

(1) the present invention provides a kind of monitoring device presetting bit setting method and systems, and acquisition monitoring device first is more The monitoring risk entropy of multiple monitoring images and each monitoring image under group presetting bit, it is descending according still further to monitoring risk entropy Sequence ranks each monitoring image, corresponding one or more groups of pre- near preceding one or more monitoring images by ranking Set is set as preferred presetting bit.Because the monitoring risk entropy is for indicating monitoring device to dangerous thing in institute's monitoring scene Part pays close attention to the risk of event or the Grasping level of information, therefore the monitoring risk entropy of monitoring image is bigger, in monitoring scene The Grasping level of the risk or information of unsafe incidents or concern event is more deep, and monitoring effect is also better.Institute of the present invention It states monitoring device presetting bit setting method and system and obtains its corresponding monitoring by automatically analyze to each monitoring image Risk entropy, and the corresponding presetting bit of monitoring image when monitoring risk entropy numerical value maximum is chosen as the preferred preset of monitoring device Position, it can be ensured that get best monitoring effect, setting rationally, overcomes in the prior art since operator's experience is insufficient So that unreasonable defect is arranged in presetting bit.

(2) the present invention also provides another monitoring device presetting bit setting method and system, monitoring device is first obtained Wide-angle monitoring image when in maximum view position, then wide-angle monitoring image is divided into multiple sub- monitoring images, Zhi Houxuan Take one of them sub- monitoring image as reference monitor image, and centered on reference monitor image, it is suitable according to from the near to the distant Sequence is successively incorporated to adjacent or close position sub- monitoring image, until the monitoring risk entropy of the monitoring image after merging reaches maximum Value.Because the monitoring risk entropy for the monitoring image that monitoring device obtains is bigger, monitoring effect is more ideal, therefore monitors risk entropy Presetting bit corresponding to monitoring image after maximum merging is that monitoring effect is best, and most reasonable presetting bit is arranged.The present invention The monitoring device presetting bit setting method and system by the monitoring image after each merging automatically analyze acquisition its Corresponding monitoring risk entropy, and choose the corresponding presetting bit conduct of monitoring image after merging when monitoring risk entropy numerical value maximum The preferred presetting bit of monitoring device, it can be ensured that get best monitoring effect, setting rationally, overcome in the prior art by Make presetting bit that unreasonable defect is set in operator's experience deficiency.In addition, the prison of the monitoring image after being merged by judgement Whether increase depending on risk entropy and is assured that the optimal monitoring image of monitoring effect and calculates optimal pre- of monitoring effect accordingly Set no longer needs to the presetting bit for traversing monitoring device one by one to find optimal presetting bit, shortens the verifying and debugging time.

(3) monitoring device presetting bit setting method and system of the present invention, according to the peace introduced with moving target itself Full blast nearly related first monitors risk entropy, the level of coverage with fixed target and/or key monitoring region in monitoring image And the related second monitoring risk entropy of inherent risk of fixed target and/or priority control region, the vision letter with monitoring image The weighting between the related third monitoring risk entropy of degree of conformity between breath quality and monitoring requirement obtains monitoring risk entropy, wherein First monitoring risk entropy and the second monitoring risk entropy are related to monitoring image and cover to the space of risk point, and third monitoring risk entropy relates to And the visual information of high quality can be obtained, and it is between the two the demand of conflict, monitoring device of the present invention is preset Position setting method and system by first monitoring risk entropy, second monitoring risk entropy, third monitor risk entropy between weighting come When obtaining monitoring risk entropy, therefore monitoring risk entropy maximum, illustrate that monitoring image corresponding to the monitoring risk entropy can cover Risk point in monitoring scene, and also with better quality visual information namely monitoring image these two aspects synthesis Effect is optimal, and has taken into account field range and visual quality.

(4) the present invention also provides the switching method and system between a kind of above-mentioned presetting bit, according to moving target when Between between the statistical property and monitoring image corresponding to preferred presetting bit in space being associated with over time and space, set excellent Select the switching time between presetting bit and sequence.Therefore, the switching method and system between presetting bit of the present invention, it is preset Cruise path and revocable when the switching of position, but carried out according to the variation characteristic of moving target over time and space real-time Adjust automatically, it is convenient, flexible, effective monitoring can be carried out to fast-changing scene, reach best monitoring capture effect.

Detailed description of the invention

In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines Attached drawing, the present invention is described in further detail, wherein

Fig. 1 is that camera optical axis extended line is folded with vertical direction in presetting bit described in background of invention part Pitch angle Ф schematic diagram；

Fig. 2 is in the projection and horizontal plane of camera optical axis extended line in the horizontal plane described in background of invention part Reference direction formed by angle theta；

Fig. 3 is the flow chart of monitoring device presetting bit setting method described in the embodiment of the present invention 1；

Fig. 4 is the flow chart of monitoring device presetting bit setting method described in the embodiment of the present invention 2；

Fig. 5 is the flow chart that monitoring risk entropy is obtained in monitoring device presetting bit setting method of the present invention；

Fig. 6 is the structural block diagram of the setting system of monitoring device presetting bit described in the embodiment of the present invention 1；

Fig. 7 is the structural block diagram of the setting system of monitoring device presetting bit described in the embodiment of the present invention 2；

Fig. 8 is to monitor that risk entropy obtains the structural frames of subelement in monitoring device presetting bit setting system of the present invention Figure.

Appended drawing reference indicates in figure are as follows: 11- monitoring unit, 12- presetting bit selection unit, 21- wide-angle monitoring image obtain Unit, 22- division unit, 23- selection of datum unit, 24- combining unit, 25- first processing units, 26- the second processing unit, 27- selection unit, 3- monitor that risk entropy obtains subelement, 31- identifier, 32- counter, the first getter of 33-, 34- second Getter, 35- first monitor that risk entropy getter, 36- second monitor risk entropy getter, and 37- third monitors that risk entropy obtains Device, 38- monitor risk entropy getter.

Specific embodiment

Embodiment 1

A kind of monitoring device presetting bit setting method is present embodiments provided, as shown in Figure 3, comprising:

S11. the monitoring risk of multiple monitoring images and each monitoring image of the monitoring device under multiple groups presetting bit is obtained Entropy, the monitoring risk entropy are used to indicate monitoring device to the risk or letter of unsafe incidents in institute's monitoring scene or concern event The Grasping level of breath.

S12. each monitoring image is ranked according to the descending sequence of monitoring risk entropy, will be ranked near preceding The corresponding one or more groups of presetting bits of one or more monitoring images are set as preferred presetting bit.

Specifically, step S11, monitoring device described in S12 can be the video camera of fixed viewpoint, or visual angle can Video camera is controlled, when monitoring device is video camera (gunlock) of fixed viewpoint, because position is unable to adjust after its installation, Only choosing presetting bit of the monitoring image when monitoring risk entropy maximum can as preferred presetting bit, it can be ensured that gets Preferable monitoring effect；When monitoring device is that visual angle can control video camera (ball machine), because of personnel and vehicle in actual scene The case where be it is ever-changing, the generation of the stream of people, wagon flow and security incident has time variation, therefore optimal pre- in different periods Set is possible to will be different, by choosing ranking near several groups of preceding presetting bits as preferred presetting bit, be the later period according to The presetting bit that actual monitored demand switches to most suitable situation at that time is laid a good foundation, it can be ensured that gets optimal monitoring figure Picture carries out effective monitoring to scene.

In addition, because a variety of view positions (presetting bit) can be set into monitoring device, it is in a particular application, each in order to verify The monitoring effect of a presetting bit, if conditions permit, the presetting bit for needing the multiple groups of traversal monitoring device as much as possible different, The corresponding presetting bit of the monitoring maximum monitoring image of risk entropy is therefrom selected, monitoring device can be made to monitor in time and get prison Control the risk or information of unsafe incidents or concern event in scene.

Because the monitoring risk entropy is for indicating monitoring device to unsafe incidents in institute's monitoring scene or concern event Risk or information Grasping level, therefore the monitoring risk entropy of monitoring image is bigger, to unsafe incidents in monitoring scene or The risk of concern event or the Grasping level of information are more deep, and monitoring effect is also better.Monitoring device described in the present embodiment Presetting bit setting method obtains its corresponding monitoring risk entropy by automatically analyze to each monitoring image, and chooses monitoring Preferred presetting bit of the corresponding presetting bit of monitoring image as monitoring device when risk entropy numerical value maximum, it can be ensured that get Best monitoring effect, setting rationally, overcome in the prior art since operator's experience deficiency makes presetting bit setting not Reasonable defect.

Preferably, as shown in figure 5, the step of obtaining monitoring risk entropy may include:

S31. moving target, fixed target and/or the key monitoring region in monitoring image are identified.

S32. it obtains the motion information of moving target and the motion information is counted, obtain motion information statistics knot Fruit, the statistical result include the number of moving target, spatio-temporal distribution density, the size of movement velocity, direction and rail Mark, disengaging scene or at least one of the position and duration that stop in the scene and time relevant to motion state.

S33. obtain the level of coverage of fixed target and/or key monitoring region in monitoring image, and fixed target and/ Or key monitoring region is at any time or the inherent risk of spatial variations.

S34. the degree of conformity relationship between the visual information quality and monitoring requirement of monitoring image is obtained.

S35. monitoring device is obtained to fixed target and/or emphasis control according to the level of coverage and the inherent risk First monitoring risk entropy of area monitoring processed.

S36. according to the motion information statistical result obtain moving target introduce security risk and moving target with Coupling risk between fixed target and/or key monitoring region obtains what monitoring device monitored moving target accordingly Second monitoring risk entropy.

S37. wind is monitored according to degree of conformity Relation acquisition third relevant to monitoring device visual information acquisition quality Dangerous entropy.

S38. by the first monitoring risk entropy, the second monitoring risk entropy and third monitoring risk entropy weighting Obtain monitoring risk entropy.

Specifically, in step S31, identification for moving target, fixed target and/or priority control region, Ke Yixuan It is realized with any recognition methods in the prior art.Moving target is the target moved in monitoring scene, at one There are many moving targets in monitoring scene, can choose the moving target for needing to monitor, such as monitor task according to monitor task To supervise the incidents of violence such as whether fight, have a fist fight, then moving target determine be people, if monitor task be primarily to see whether There is break in traffic rules and regulations, moving target can be determined as to motor vehicles etc.；Fixed target and/or priority control region are according to monitoring Task setting, such as dangerous article in monitoring scene, such as gas station, petrol drum, the warehouse for storing dangerous material etc., or Have stream of people's close quarters, such as lift port, store entrance etc. in monitoring scene, can be set to fixed target or by its The regional assignment of surrounding is emphasis control area, carries out key monitoring.Fixation target and key monitoring in one monitoring scene Region can have it is multiple, can not only set fixed target but set key monitoring region, can also only setting one of them, specifically It is set according to monitoring demand.Each of selected fixed target and the classification in key monitoring region, security protection rank or with potential peace Nearly associated significance level is referred to security monitoring requirement or relevant operation standard, specification to set to full blast, meets monitoring field The actual conditions and demand of scape and monitor task.

In step S32, after identifying the moving target in monitoring image, the motion profile of moving target can be obtained, I.e. moving target at any time with the motion information of spatial variations, such as moving target when appeared in where, lead to Acquisition can be identified by crossing monitoring image, by counting to motion information, so that it may motion information statistical result is got, Number, spatio-temporal distribution density, the size of movement velocity, direction and track including moving target, disengaging scene or The position and duration that stop in the scene and time relevant to motion state etc. can determine have according to actual monitored demand Which motion information of decorum meter moving target.A kind of motion information can only be counted or count multi-motion information, be The security risk and its coupling risk between fixed target and/or key monitoring region that later period calculates and moving target introduces Monitoring risk entropy is laid a good foundation.

In step S33, by identifying fixation target and key monitoring region in monitoring image, fixation can be obtained naturally The level of coverage of target and/or priority control region in monitoring image, its certain level of coverage is higher, and monitoring effect is got over certainly It is ideal.It at any time or the inherent risk of/spatial variations about fixed target and/or key monitoring region, can be according to fixed mesh The classification in mark and/or key monitoring region, security protection rank are associated with potential security risk to set, for example fixed target is one When a petrol drum, potential security risk can set biggish inherent risk value with regard to relatively high, and petrol drum more leans on Person of modern times person compact district, inherent risk value is higher, and because petrol drum is easier to cause danger in the case of a high temperature, with The variation of time, more close on the period of the day from 11 a.m. to 1 p.m, temperature is higher, and inherent risk value can also be increase accordingly.Certainly the fixation target that has and/ Or the inherent risk in key monitoring region may also will not change with the variation of space or time, for example, in an entrance In control system, the access and exit control device (such as door lock) of key position is if it will cause safety accidents (and to have a certain amount of for damage Can calculation risk), but do not consider the problem of aging at any time of control device usually, inherent risk is one and is to damage probability The constant on basis.By obtaining level of coverage in monitoring image of fixed target and/or key monitoring region and its at any time Or the inherent risk of spatial variations, determine that the monitoring risk in fixed target and/or key monitoring region is laid a good foundation for the later period.

In step S34, the degree of conformity relationship between the visual information quality and monitoring requirement of monitoring image can be used At a kind of picture quality of the required image-region or target of monitor task subjectivity or objectively evaluate index and actual monitored Difference between the quality evaluation index of image indicates.Complete a kind of image of the required image-region or target of monitor task The subjectivity of quality objectively evaluates index and is referred to security monitoring requirement or relevant operation standard to set, such as supervises in personnel In the occasion of control, if it is desired to identify the identity of people, then can pixel number to face part, face the evaluation indexes such as angle mention It requires out, if it is desired to distinguish people and Che, then the evaluation indexes such as pixel number, cross-color degree, contrast, clarity can be proposed It is required that.It meets the requirements (at this moment often corresponding and lesser field range) although these indexs get over Gao Yueneng, in some fields In conjunction, these indexs can not be excessively high, for example, if human face region it is shared in picture pixel number it is excessive, may cause automatic The failure of Face datection algorithm, therefore specific evaluation index needs to set referring to security monitoring requirement or relevant operation standard It is fixed.By to the monitoring image actually obtained according to above-mentioned security monitoring requirement or relevant operation standard come evaluation analysis, so that it may To get the quality evaluation index of actual monitored image, therefore, the subjectivity of the picture quality of required image-region or target Or the otherness objectively evaluated between index and the quality evaluation index of actual monitored image is smaller, visual information quality is wanted with monitoring Degree of conformity is higher between asking, and monitoring effect is more ideal, otherwise degree of conformity is lower, and picture quality is poorer.Monitoring device can be obtained The visual quality of the monitoring image taken carries out objectively evaluating for monitoring combination requirement, obtains and visual information acquisition quality for the later period Relevant monitoring risk is laid a good foundation.

In step S35, level of coverage is higher, inherent risk is bigger, then the first monitoring risk entropy is also bigger, monitoring image Field range it is broader.

Preferably, the first monitoring risk entropy can be calculated by following formula:

Wherein,

Priority control region

Ts_iIt is the extent of injury of i-th of fixed target when causing danger, Tw_jIt is that j-th of priority control region is occurring Extent of injury when dangerous, P_iIt is the probability that i-th of fixed target unsafe incidents occurs, P_jBe j-th of priority control region not The probability that security incident occurs, and Ts_i、Tw_j、P_i、P_jAt any time or spatial variations, A_inIt is emphasis control area in monitoring figure Area coverage as in, A_totalFor the gross area of monitoring image, S_1,iIt is the monitoring risk entropy of i-th of fixed target, S_1,jIt is jth The monitoring risk entropy in a priority control region, S₁It is the sum of the monitoring risk entropy in all fixed targets and/or priority control region.

Specifically, because being possible to set multiple fixed targets according to monitor task or requirement in a monitoring scene And/or key monitoring region, therefore the first risk entropy in entire monitoring scene should be all fixation target and/or emphasis The sum of monitoring risk entropy of control area.Ts_iAnd Tw_jIt is classification and the spy according to each fixed target and/or priority control region Property determine, for example the extent of injury of the petrol drum (fixed target) when causing danger be just than big, in addition locating for petrol drum Time when position and monitoring also will affect extent of injury when it is caused danger, therefore Ts_iAt any time or spatial variations and Variation, and the probability P of unsafe incidents occurs_iAlso can at any time with the variation in space and change, such as early evening peak, people More vehicles mostly occur the probability of unsafe incidents will be relatively high, and moving target is less in morning monitoring scene, and dangerous thing occurs The probability of part will be relatively low, and the demand of classification and monitoring with specific reference to monitoring scene is advised the variation of above-mentioned parameter is arranged Rule.When in monitoring image fixed target can be monitored, because can see fixed target by monitoring image constantly, once there is danger Danger, can obtain dangerous information in time, then the monitoring risk entropy of the fixed target of such situation is 0, and for a monitoring image, It is possible that all fixation targets to be monitored can not be shown, that is, the fixation target having is possible to not in monitoring image, both So monitoring less than then there is monitoring risk, then it monitors risk and extent of injury Ts when causing danger naturally_iAnd not The probability P that security incident occurs_iChanging rule it is consistent, with its increase and increases, reduction and reduce.In addition, priority control area The level of coverage in domain is higher namely A_inWith A_totalRatio it is higher, extent of injury Tw when causing danger_jIt is higher, then the emphasis The monitoring risk entropy of monitoring area is also higher, meets actual monitoring situation, the first monitoring that can be tallied with the actual situation Risk entropy.

In step S36, the security risk that moving target introduces is bigger, the coupling with fixed target and/or key monitoring region It is bigger to close risk, the second monitoring risk entropy is also bigger.The security risk and motion information statistical result phase that moving target introduces Association, such as the number of moving target are more, and distribution density is bigger, movement velocity is bigger, and the risk that its own is introduced is higher；Fortune Coupling risk and moving target and fixed target and/or emphasis between moving-target and fixed target and/or key monitoring region The positional relationship of control area and its probability that fixed target and/or priority control region are potentially destroyed and occurred or with The probability that injury and generation of the dangerous time to other targets in monitoring scene occur for fixed target is related, moving target Position is closer from fixed target and/or priority control region, distribution density is bigger, speed is bigger, stay time is longer etc., usually It is higher that it couples risk.Such as the vehicle (moving target) of a delivery radiogen, it can be to the article in monitoring scene, animal Plant (fixed target) generates injury, and this injury is with the speed of residence time and vehicle (with the probability that traffic accident occurs It is related) etc. factors it is related, with the increase of residence time or speed, deliver the coupling between the vehicle of radiation and fixed target Closing risk can be increasing；For another example: personnel's residence time in monitoring scene is longer, density of personnel is bigger, to public property The damage probability of (including highest priority) is also bigger, personnel's (moving target) and fixation target or emphasis prison in monitoring environment It is also bigger to control interregional coupling risk.

Preferably, the second monitoring risk entropy can be calculated by following formula:

S₂=(β₁S_M+β₂S_MS)

β₁β₂Weight is respectively represented, can be set according to the classification of monitoring scene and the demand of monitor task.S_MIt is and fortune The relevant monitoring risk entropy of moving-target itself, S_MSIt is that moving target generates threat to fixed target and/or emphasis monitor area Monitor risk entropy；

Wherein,

S_M=-T_Mlg(p|p_M)=- T_M(lgp+lgp_M)

S_MS=-T_Slg(p|P_MS)

T_MIt is determined by the security risk that moving target introduces, T_SIt is at any time or empty by fixed target and/or emphasis monitor area Between the inherent risk that changes determine that p is that moving target appears in the probability in monitoring image, P_MFor moving target unsafe incidents Probability of happening, P_MSFor the probability of happening of moving target and fixed target and/or key monitoring region couples event；ρ is movement For target in spatio-temporal distribution density, n is the number of moving target,For the movement velocity vector of moving target, t is movement The time attribute of target, Δ t are the duration that moving target stops in the scene,For moving target and fixed target and/or again Relative position between point monitoring area.

Specifically, above-mentioned parameter can be obtained by motion information statistical result.Moving target unsafe incidents Probability of happening P_MAt least with moving target in spatio-temporal distribution density p, the movement of the number n, moving target of moving target Velocity vector, moving target the duration Δ t that stops in the scene of time attribute t, moving target in one it is related；Movement The probability of happening P of target and fixed target and/or key monitoring region couples event_MSAt least with moving target in time and space Distribution density ρ, the number n of moving target, moving target movement velocity vector, moving target mean speed vector, movement At the time of target appears or disappears, the duration Δ t that moving target stops in the scene and average stay time, moving target with Relative position between fixed target and/or key monitoring regionIn one it is related.The present embodiment considers movement mesh comprehensively Itself security risk of introducing and the coupling risk of moving target and surrounding enviroment are marked, can really reflect monitoring device to fortune The monitoring risk of moving-target, the unsafe incidents for finding moving target itself in time or occurring with fixed target, it is ensured that monitoring Effect.

In step S37, visual information acquisition quality is higher, and third monitors that risk entropy is bigger.It preferably, can be by such as Lower formula calculates third and monitors risk entropy:

Wherein, θ_kK-th of the visual information represented in the degree of conformity relationship between visual information quality and monitoring requirement is adopted Collect the subjective or objective satisfaction of quality index, ω_kRepresent weight.

Specifically, θ_kThe monitoring image of acquisition is analyzed according to the monitoring requirement of a certain index, determines visual information quality Degree of conformity between monitoring requirement, degree of conformity is higher, the θ under the index_kValue it is bigger, (θ_k| p) indicate what target occurred Under the conditions of obtain visual information probability；The probability of occurrence p of moving target is replaced with the probability that target occurs in the scene； If video monitoring requires the visual information quality of the specific part in scene, face of the Probability p in specific part picture It is long-pending to be replaced with total scene area ratio；The p=1 if having quality requirement to entire monitoring screen；ω_kValue according to monitor task Demand determine, if with greater need for having preferable visual information acquisition quality, ω_kValue can be larger.By each finger Monitoring risk entropy summation under mark, so that it may get third monitoring risk entropy, monitoring device acquisition can be accurately reflected The visual information acquisition quality of monitoring image.

In step S38, monitor that risk entropy, the second monitoring risk entropy, third monitoring risk entropy weighting can obtain for first Get the monitoring risk entropy of the monitoring risk of reflection monitoring image.Preferably, monitoring risk can be calculated by following formula Entropy:

S=λ₁S₁+λ₂S₂+λ₃S_VQ

Wherein, λ₁、λ₂、λ₃Weight coefficient is respectively represented, it can be according to monitor task to the need of field range and picture quality It asks different values is arranged, obtains big field range, λ if be more focused on₁、λ₂Larger value can be set, if It is more focused on and obtains higher video monitoring quality, then λ₃Some biggish values can be set.Meet monitoring demand to get The preferable monitoring image of monitoring effect corresponding to presetting bit lay a good foundation.

Monitoring device presetting bit setting method described in the present embodiment has according to the security risk introduced with moving target itself The level of coverage and fixed mesh of the first monitoring risk entropy closed and fixed target and/or key monitoring region in monitoring image Mark and/or the related second monitoring risk entropy of the inherent risk in priority control region, with the visual information quality of monitoring image with The weighting between the related third monitoring risk entropy of degree of conformity between monitoring requirement obtains monitoring risk entropy, wherein the first monitoring Risk entropy and the second monitoring risk entropy are related to monitoring image and cover to the space of risk point, and can third monitoring risk entropy be related to taking The visual information of high quality is obtained, and is between the two the demand of conflict, the setting of monitoring device presetting bit described in the present embodiment Method monitors the weighting between risk entropy by the first monitoring risk entropy, the second monitoring risk entropy, third to obtain monitoring risk Entropy, therefore when monitoring risk entropy maximum, illustrate that monitoring image corresponding to the monitoring risk entropy can cover in monitoring scene Risk point, and also the visual information with better quality namely monitoring image are optimal in the resultant effect of these two aspects, Field range and visual quality are taken into account.

Embodiment 2

It in embodiment 1, in order to select preferable presetting bit, needs to adjust the angular field of view of monitoring device, traverses Each presetting bit of monitoring device, therefore the period of test early period is long, in order to further shorten test period, is implementing On the basis of example 1, monitoring device presetting bit setting method described in the present embodiment has carried out further optimization to embodiment 1, such as Shown in Fig. 4, comprising:

S21. wide-angle monitoring image when monitoring device is in maximum view position is obtained.

S22. wide-angle monitoring image is divided into multiple sub- monitoring images.

S23. one of them sub- monitoring image is chosen as reference monitor image and obtains its monitoring risk entropy, the monitoring Risk entropy is used to indicate monitoring device to the risk of unsafe incidents in institute's monitoring scene or concern event or the grasp journey of information Degree.

S24. after being incorporated to reference monitor image by a sub- monitoring image adjacent with reference monitor image and obtain merging Monitoring image monitoring risk entropy.

If the monitoring risk entropy of the monitoring image after S25. merging is less than or equal to the monitoring risk entropy of reference monitor image, Monitoring image after then reference monitor image is merged as one and no longer it is incorporated to new sub- monitoring image.

If the monitoring risk entropy of the monitoring image after S26. merging is greater than the monitoring risk entropy of reference monitor image, should Monitoring image after merging is monitored monitoring of the risk entropy as new reference monitor image as new reference monitor image Risk entropy, and be back to and described a sub- monitoring image adjacent with reference monitor image is incorporated to reference monitor image and is obtained The step of monitoring risk entropy of monitoring image after merging.

S27. the monitoring image after each merging is ranked according to the descending sequence of monitoring risk entropy, the row of acquisition One or more groups of presetting bits corresponding to monitoring image of the position after preceding one or more merging, are set to preferably pre- Set.

Specifically, monitoring device presetting bit setting method described in the present embodiment first obtains monitoring device and is in maximum visual angle Wide-angle monitoring image when position, then wide-angle monitoring image is divided into multiple sub- monitoring images, one of son is chosen later Monitoring image is successively incorporated to phase according to sequence from the near to the distant as reference monitor image, and centered on reference monitor image Adjacent or close position sub- monitoring image, until the monitoring risk entropy of the monitoring image after merging reaches maximum value.Because of monitoring The monitoring risk entropy for the monitoring image that device obtains is bigger, and monitoring effect is more ideal, therefore monitors the maximum merging of risk entropy Presetting bit corresponding to monitoring image afterwards is that monitoring effect is best, and most reasonable presetting bit is arranged.After to each merging Monitoring image automatically analyze and to obtain its corresponding monitoring risk entropy, and merging when choosing monitoring risk entropy numerical value maximum Preferred presetting bit of the corresponding presetting bit of monitoring image afterwards as monitoring device, it can be ensured that get best monitoring effect Fruit, setting rationally, overcome in the prior art since operator's experience deficiency makes presetting bit that unreasonable defect be arranged. In addition, being assured that the optimal monitoring figure of monitoring effect by judging whether the monitoring risk entropy of the monitoring image after merging increases Picture simultaneously calculates the optimal presetting bit of monitoring effect accordingly, and the presetting bit for no longer needing to traverse monitoring device one by one is optimal to find Presetting bit, shorten the verifying and debugging time.

Embodiment 3

One kind is present embodiments provided to obtain by embodiment 1 and monitoring device presetting bit setting method as described in example 2 The switching method of the preset interdigit of the monitoring device taken, comprising:

Between the monitoring image according to corresponding to the statistical property and preferred presetting bit in the time of moving target and space Time and association spatially, set the switching time between preferred presetting bit and sequence.

Specifically, the switching method between presetting bit described in the present embodiment, cruise path when presetting bit switches are not Fixed, but real-time adjust automatically is carried out according to the variation characteristic of moving target over time and space, and it is convenient, flexible, it can Effective monitoring is carried out to fast-changing scene, reaches best monitoring capture effect.

Embodiment 4

A kind of monitoring device presetting bit setting system is present embodiments provided, as shown in Figure 6, comprising: 11 He of monitoring unit Presetting bit selection unit 12, wherein monitoring unit 11, for obtaining multiple monitoring images of the monitoring device under multiple groups presetting bit And the monitoring risk entropy of each monitoring image, the monitoring risk entropy is for indicating monitoring device to dangerous in institute's monitoring scene Event pays close attention to the risk of event or the Grasping level of information；Presetting bit selection unit 12 is used for according to monitoring risk entropy by big Each monitoring image is ranked to small sequence, by ranking near preceding one or more monitoring images it is corresponding one group or Multiple groups presetting bit is set as preferred presetting bit.

Because the monitoring risk entropy is for indicating monitoring device to unsafe incidents in institute's monitoring scene or concern event Risk or information Grasping level, therefore the monitoring risk entropy of monitoring image is bigger, to unsafe incidents in monitoring scene or The risk of concern event or the Grasping level of information are more deep, and monitoring effect is also better.Monitoring device described in the present embodiment Presetting bit is arranged system and carries out automatically analyzing its corresponding monitoring risk entropy of acquisition to each monitoring image by monitoring unit 11, And the corresponding presetting bit of monitoring image when monitoring risk entropy numerical value maximum is chosen as monitoring device by selection unit 12 It is preferred that presetting bit, it can be ensured that get best monitoring effect, setting rationally, overcomes in the prior art due to operator Experience deficiency makes presetting bit that unreasonable defect be arranged.

Preferably, the monitoring unit 11 may include that monitoring risk entropy obtains subelement 3, as shown in figure 8, it is further Include:

Identifier 31, for identification moving target in monitoring image, fixed target and/or key monitoring region.

Counter 32 obtains movement for obtaining the motion information of moving target and counting to the motion information Information Statistics as a result, the statistical result include the number of moving target, spatio-temporal distribution density, movement velocity it is big Small, direction and track pass in and out scene or the position and duration that stop in the scene and in the time relevant to motion state At least one.

First getter 33, for obtaining the level of coverage of fixed target and/or key monitoring region in monitoring image, And fixed target and/or key monitoring region are at any time or the inherent risk of spatial variations.

Second getter 34 is closed for obtaining the degree of conformity between the visual information quality of monitoring image and monitoring requirement System.

First monitoring risk entropy getter 35, for obtaining monitoring dress according to the level of coverage and the inherent risk Set the first monitoring risk entropy to fixed target and/or priority control area monitoring.

Preferably, in the first monitoring risk entropy getter 35, the first monitoring risk can be calculated by following formula Entropy:

Wherein,

Priority control region

Ts_iIt is the extent of injury of i-th of fixed target when causing danger, Tw_jIt is that j-th of priority control region is occurring Extent of injury when dangerous, P_iIt is the probability that i-th of fixed target unsafe incidents occurs, P_jBe j-th of priority control region not The probability that security incident occurs, and Ts_i、Tw_j、P_i、P_jAt any time or spatial variations, A_inIt is emphasis control area in monitoring figure Area coverage as in, A_totalFor the gross area of monitoring image, S_1,iIt is the monitoring risk entropy of i-th of fixed target, S_1,jIt is jth The monitoring risk entropy in a priority control region, S₁It is the sum of the monitoring risk entropy in all fixed targets and/or priority control region.

Second monitoring risk entropy getter 36, for obtaining what moving target introduced according to the motion information statistical result Coupling risk between security risk and moving target and fixed target and/or key monitoring region obtains monitoring dress accordingly Set the second monitoring risk entropy monitored to moving target.

Preferably, in the second monitoring risk entropy getter 36, the second monitoring risk can be calculated by following formula Entropy:

S₂=(β₁S_M+β₂S_MS)

β₁β₂Respectively represent weight, S_MIt is monitoring risk entropy relevant to moving target itself, S_MSIt is moving target to fixation Target and/or emphasis monitor area generate the monitoring risk entropy threatened；

Wherein,

S_M=-T_MLg (p|p_M)=- T_M(lgp+lgp_M)

S_MS=-T_Slg(p|P_MS)

T_MIt is determined by the security risk that moving target introduces, T_SIt is at any time or empty by fixed target and/or emphasis monitor area Between the inherent risk that changes determine that p is that moving target appears in the probability in monitoring image, P_MFor moving target unsafe incidents Probability of happening, P_MSFor the probability of happening of moving target and fixed target and/or key monitoring region couples event；ρ is movement For target in spatio-temporal distribution density, n is the number of moving target,For the movement velocity vector of moving target, t is movement The time attribute of target, Δ t are the duration that moving target stops in the scene,For moving target and fixed target and/or again Relative position between point monitoring area.

Third monitors risk entropy getter 37, for being adopted according to the degree of conformity Relation acquisition with monitoring device visual information Collect the relevant third of quality and monitors risk entropy.

Preferably, in the third monitoring risk entropy getter 37, third can be calculated by following formula and monitors risk Entropy:

Wherein, θ_kK-th of the visual information represented in the degree of conformity relationship between visual information quality and monitoring requirement is adopted Collect the subjective or objective satisfaction of quality index, ω_kRepresent weight.

Risk entropy getter 38 is monitored, for the first monitoring risk entropy, described second to be monitored risk entropy and institute Third monitoring risk entropy is stated to weight to obtain monitoring risk entropy.

System is arranged in monitoring device presetting bit described in the present embodiment, is had according to the security risk introduced with moving target itself The level of coverage and fixed mesh of the first monitoring risk entropy closed and fixed target and/or key monitoring region in monitoring image Mark and/or the related second monitoring risk entropy of the inherent risk in priority control region, with the visual information quality of monitoring image with The weighting between the related third monitoring risk entropy of degree of conformity between monitoring requirement obtains monitoring risk entropy, wherein the first monitoring Risk entropy and the second monitoring risk entropy are related to monitoring image and cover to the space of risk point, and can third monitoring risk entropy be related to taking The visual information of high quality is obtained, and is between the two the demand of conflict, the setting of monitoring device presetting bit described in the present embodiment System monitors the weighting between risk entropy by the first monitoring risk entropy, the second monitoring risk entropy, third to obtain monitoring risk Entropy, therefore when monitoring risk entropy maximum, illustrate that monitoring image corresponding to the monitoring risk entropy can cover in monitoring scene Risk point, and also the visual information with better quality namely monitoring image are optimal in the resultant effect of these two aspects, Field range and visual quality are taken into account.

Embodiment 5

The setting system of monitoring device presetting bit described in the present embodiment is the further improvement to embodiment 4, as shown in fig. 7, Include:

Wide-angle monitoring image acquisition unit 21, for obtaining wide-angle monitoring figure when monitoring device is in maximum view position Picture.

Division unit 22, for wide-angle monitoring image to be divided into multiple sub- monitoring images.

Selection of datum unit 23, for choosing one of them sub- monitoring image as reference monitor image and obtaining its monitoring Risk entropy, the monitoring risk entropy are used to indicate monitoring device to the risk of unsafe incidents in institute's monitoring scene or concern event Or the Grasping level of information.

Combining unit 24, for a sub- monitoring image adjacent with reference monitor image to be incorporated to reference monitor image simultaneously Obtain the monitoring risk entropy of the monitoring image after merging.

First processing units 25, the monitoring risk entropy for monitoring image after merging are less than or equal to reference monitor figure When the monitoring risk entropy of picture, monitoring image after reference monitor image is merged as one and no longer it is incorporated to new sub- monitoring figure Picture.

The second processing unit 26 is greater than the prison of reference monitor image for the monitoring risk entropy of monitoring image after merging When depending on risk entropy, using the monitoring image after the merging as new reference monitor image, monitored risk entropy as new base The monitoring risk entropy of quasi- monitoring image, and activate the combining unit 24.

Selection unit 27, for being carried out according to the descending sequence of monitoring risk entropy to the monitoring image after each merging Ranking obtains one or more groups of presetting bits corresponding to monitoring image of the ranking after preceding one or more merging, by it It is set as preferred presetting bit.

Specifically, system is arranged in monitoring device presetting bit described in the present embodiment, first obtains monitoring device and is in maximum visual angle Wide-angle monitoring image when position, then wide-angle monitoring image is divided into multiple sub- monitoring images, one of son is chosen later Monitoring image is successively incorporated to phase according to sequence from the near to the distant as reference monitor image, and centered on reference monitor image Adjacent or close position sub- monitoring image, until the monitoring risk entropy of the monitoring image after merging reaches maximum value.Because of monitoring The monitoring risk entropy for the monitoring image that device obtains is bigger, and monitoring effect is more ideal, therefore monitors the maximum merging of risk entropy Presetting bit corresponding to monitoring image afterwards is that monitoring effect is best, and most reasonable presetting bit is arranged.After to each merging Monitoring image automatically analyze and to obtain its corresponding monitoring risk entropy, and merging when choosing monitoring risk entropy numerical value maximum Preferred presetting bit of the corresponding presetting bit of monitoring image afterwards as monitoring device, it can be ensured that get best monitoring effect Fruit, setting rationally, overcome in the prior art since operator's experience deficiency makes presetting bit that unreasonable defect be arranged. In addition, being assured that the optimal monitoring figure of monitoring effect by judging whether the monitoring risk entropy of the monitoring image after merging increases Picture simultaneously calculates the optimal presetting bit of monitoring effect accordingly, and the presetting bit for no longer needing to traverse monitoring device one by one is optimal to find Presetting bit, shorten the verifying and debugging time.

Embodiment 6

Present embodiments provide it is a kind of by monitoring device presetting bit described in embodiment 4 and embodiment 5 be arranged system obtain The switching system of the preset interdigit of the monitoring device taken, comprising:

Switch unit, for the prison according to corresponding to the statistical property of the time of moving target and space and preferred presetting bit Association over time and space between image is controlled, the switching time between preferred presetting bit and sequence are set.

Specifically, the switching system between presetting bit described in the present embodiment, cruise path when presetting bit switches are not Fixed, but real-time adjust automatically is carried out according to the variation characteristic of moving target over time and space, and it is convenient, flexible, it can Effective monitoring is carried out to fast-changing scene, reaches best monitoring capture effect.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Claims (8)

1. a kind of monitoring device presetting bit setting method characterized by comprising

Obtain the monitoring risk entropy of multiple monitoring images and each monitoring image of the monitoring device under multiple groups presetting bit, the prison It is used to indicate grasp of the monitoring device to unsafe incidents in institute's monitoring scene or the risk or information of paying close attention to event depending on risk entropy Degree；Wherein, the step of obtaining monitoring risk entropy includes: moving target, fixed target and/or the emphasis identified in monitoring image Monitoring area；It obtains the motion information of moving target and the motion information is counted, obtain motion information statistical result, The statistical result include the number of moving target, spatio-temporal distribution density, the size of movement velocity, direction and track, Pass in and out scene or at least one of the position and duration that stop in the scene and time relevant to motion state；It obtains The level of coverage of fixed target and/or key monitoring region in monitoring image, and fixed target and/or key monitoring region with The inherent risk of time or spatial variations；The degree of conformity obtained between the visual information quality and monitoring requirement of monitoring image is closed System；Monitoring device is obtained according to the level of coverage and the inherent risk to supervise fixed target and/or priority control region Depending on first monitoring risk entropy；

The security risk and moving target and fixed target that moving target introduces are obtained according to the motion information statistical result And/or the coupling risk between key monitoring region, the second monitoring that monitoring device monitors moving target is obtained accordingly Risk entropy；Risk entropy is monitored according to degree of conformity Relation acquisition third relevant to monitoring device visual information acquisition quality； It weights the first monitoring risk entropy, the second monitoring risk entropy and third monitoring risk entropy to obtain monitoring risk Entropy；

Each monitoring image is ranked according to the descending sequence of monitoring risk entropy, will be ranked near preceding one or more The corresponding one or more groups of presetting bits of a monitoring image are set as preferred presetting bit.

2. a kind of monitoring device presetting bit setting method characterized by comprising

Obtain wide-angle monitoring image when monitoring device is in maximum view position；

Wide-angle monitoring image is divided into multiple sub- monitoring images；

One of them sub- monitoring image is chosen as reference monitor image and obtains its monitoring risk entropy, the monitoring risk entropy is used In expression monitoring device to the risk of unsafe incidents in institute's monitoring scene or concern event or the Grasping level of information；Wherein, The step of obtaining monitoring risk entropy includes: moving target, fixed target and/or the key monitoring region identified in monitoring image； It obtains the motion information of moving target and the motion information is counted, obtain motion information statistical result, the statistics As a result number, spatio-temporal distribution density, the size of movement velocity, direction and the track including moving target, disengaging scene Or at least one of the position and duration that stop in the scene and time relevant to motion state；Obtain fixed target And/or level of coverage of the key monitoring region in monitoring image, and fixed target and/or key monitoring region be at any time or empty Between the inherent risk that changes；Obtain the degree of conformity relationship between the visual information quality and monitoring requirement of monitoring image；

Monitoring device is obtained according to the level of coverage and the inherent risk to supervise fixed target and/or priority control region Depending on first monitoring risk entropy；The security risk and movement that moving target introduces are obtained according to the motion information statistical result Coupling risk between target and fixed target and/or key monitoring region obtains monitoring device accordingly and carries out to moving target Second monitoring risk entropy of monitoring；According to the degree of conformity Relation acquisition relevant to monitoring device visual information acquisition quality Three monitoring risk entropies；The first monitoring risk entropy, the second monitoring risk entropy and third monitoring risk entropy are added Power obtains monitoring risk entropy；

A sub- monitoring image adjacent with reference monitor image is incorporated to reference monitor image and obtains the monitoring figure after merging The monitoring risk entropy of picture；

If the monitoring risk entropy of the monitoring image after merging is less than or equal to the monitoring risk entropy of reference monitor image, by benchmark Monitoring image merge as one after monitoring image and be no longer incorporated to new sub- monitoring image；

If the monitoring risk entropy of the monitoring image after merging is greater than the monitoring risk entropy of reference monitor image, after the merging Monitoring image is monitored monitoring risk entropy of the risk entropy as new reference monitor image as new reference monitor image, And be back to it is described a sub- monitoring image adjacent with reference monitor image is incorporated to reference monitor image and obtains merging after Monitoring image monitoring risk entropy the step of；

The monitoring image after each merging is ranked according to the descending sequence of monitoring risk entropy, obtains ranking near preceding It is one or more merge after monitoring image corresponding to one or more groups of presetting bits, be set to preferred presetting bit.

3. monitoring device presetting bit setting method according to claim 1 or 2, which is characterized in that described to be covered according to Lid degree and the inherent risk obtain monitoring device to the first monitoring wind of fixed target and/or priority control area monitoring In the step of dangerous entropy, the first monitoring risk entropy is calculated by following formula:

Wherein,

Priority control region

Ts_iIt is the extent of injury of i-th of fixed target when causing danger, Tw_jIt is that j-th of priority control region is being caused danger When the extent of injury, P_iIt is the probability that i-th of fixed target unsafe incidents occurs, P_jIt is that j-th of priority control region is dangerous The probability that event occurs, and Ts_i、Tw_j、P_i、P_jAt any time or spatial variations, A_inIt is emphasis control area in monitoring image Area coverage, A_totalFor the gross area of monitoring image, S_1,iIt is the monitoring risk entropy of i-th of fixed target, S_1,jIt is j-th of weight The monitoring risk entropy of point control area, S₁It is the sum of the monitoring risk entropy in all fixed targets and/or priority control region.

4. monitoring device presetting bit setting method according to claim 3, which is characterized in that described to be believed according to the movement Cease statistical result obtain security risk and moving target and fixed target that moving target introduces and/or key monitoring region it Between coupling risk, accordingly obtain monitoring device to moving target monitored second monitoring risk entropy the step of in, pass through Following formula calculates the second monitoring risk entropy:

S₂=(β₁S_M+β₂S_MS)

β₁ β₂Respectively represent weight, S_MIt is monitoring risk entropy relevant to moving target itself, S_MSIt is moving target to fixed mesh Mark and/or emphasis monitor area generate the monitoring risk entropy threatened；

Wherein,

S_M=-T_Mlg(p|p_M)=- T_M(lg p+lg p_M)

S_MS=-T_slg(p|P_MS)

T_MIt is determined by the security risk that moving target introduces, T_SAt any time or space becomes by fixed target and/or emphasis monitor area The inherent risk of change determines that p is that moving target appears in the probability in monitoring image, P_MFor the hair of moving target unsafe incidents Raw probability, P_MSFor the probability of happening of moving target and fixed target and/or key monitoring region couples event；ρ is moving target In spatio-temporal distribution density, n is the number of moving target,For the movement velocity vector of moving target, t is moving target Time attribute, Δ t is the duration that stops in the scene of moving target,For moving target and fixed target and/or key monitoring Relative position between region.

5. monitoring device presetting bit setting method according to claim 4, which is characterized in that described according to monitoring image Degree of conformity Relation acquisition relevant with monitoring device visual information acquisition quality between visual information quality and monitoring requirement In the step of three monitoring risk entropies, third is calculated by following formula and monitors risk entropy:

Wherein, θ_kRepresent k-th of visual information acquisition quality in the degree of conformity relationship between visual information quality and monitoring requirement The subjective or objective satisfaction of index, ω_kRepresent weight.

6. a kind of monitoring device presetting bit obtained by any monitoring device presetting bit setting method of claim 1-5 Between switching method characterized by comprising

In the time between the monitoring image according to corresponding to the statistical property and preferred presetting bit in the time of moving target and space Association spatially sets the switching time between preferred presetting bit and sequence.

7. system is arranged in a kind of monitoring device presetting bit characterized by comprising

Monitoring unit (11), for obtaining multiple monitoring images and each monitoring image of the monitoring device under multiple groups presetting bit Monitor that risk entropy, the monitoring risk entropy are used to indicate monitoring device to unsafe incidents in institute's monitoring scene or pay close attention to event The Grasping level of risk or information；It wherein, include that monitoring risk entropy obtains subelement (3) in the monitoring unit (11), into One step includes: identifier (31), for identification the moving target in monitoring image, fixed target and/or key monitoring region；System Gauge (32) obtains motion information statistics for obtaining the motion information of moving target and counting to the motion information As a result, the statistical result include the number of moving target, spatio-temporal distribution density, the size of movement velocity, direction and Track, disengaging scene or the position and duration that stop in the scene and at least one in the time relevant to motion state It is a；First getter (33), for obtaining the level of coverage of fixed target and/or key monitoring region in monitoring image, and Fixed target and/or key monitoring region are at any time or the inherent risk of spatial variations；Second getter (34), for obtaining prison Control the degree of conformity relationship between the visual information quality and monitoring requirement of image；First monitoring risk entropy getter (35), is used for Monitoring device is obtained to fixed target and/or priority control area monitoring according to the level of coverage and the inherent risk First monitoring risk entropy；Second monitoring risk entropy getter (36), moves for being obtained according to the motion information statistical result Coupling risk between security risk and moving target that target introduces and fixed target and/or key monitoring region, accordingly Obtain the second monitoring risk entropy that monitoring device monitors moving target；Third monitors risk entropy getter (37), is used for Risk entropy is monitored according to degree of conformity Relation acquisition third relevant to monitoring device visual information acquisition quality；Monitor risk Entropy getter (38), for the first monitoring risk entropy, the second monitoring risk entropy and the third to be monitored risk Entropy weights to obtain monitoring risk entropy；

Presetting bit selection unit (12), for arranging according to the descending sequence of monitoring risk entropy each monitoring image Position sets preferred presetting bit near the preceding corresponding one or more groups of presetting bits of one or more monitoring images for ranking.

8. system is arranged in a kind of monitoring device presetting bit characterized by comprising

Wide-angle monitoring image acquisition unit (21), for obtaining wide-angle monitoring figure when monitoring device is in maximum view position Picture；

Division unit (22), for wide-angle monitoring image to be divided into multiple sub- monitoring images；

Selection of datum unit (23), for choosing one of them sub- monitoring image as reference monitor image and obtaining its monitoring wind Dangerous entropy, it is described monitoring risk entropy be used for indicate monitoring device to unsafe incidents in institute's monitoring scene or pay close attention to event risk or The Grasping level of information；

Combining unit (24), for a sub- monitoring image adjacent with reference monitor image to be incorporated to reference monitor image and is obtained Take the monitoring risk entropy of the monitoring image after merging；Wherein, the selection of datum unit (23) and the combining unit (24) In include that monitoring risk entropy obtains subelement (3), further comprising: identifier (31), for identification in monitoring image Moving target, fixed target and/or key monitoring region；Counter (32), for obtaining the motion information of moving target and right The motion information is counted, and obtains motion information statistical result, the statistical result includes the number of moving target, time With spacial distribution density, the size of movement velocity, direction and track, the position for passing in and out scene or stopping in the scene and duration And at least one of time relevant to motion state；First getter (33), for obtaining fixed target and/or emphasis Level of coverage of the monitoring area in monitoring image, and fixed target and/or key monitoring region are at any time or spatial variations Inherent risk；Second getter (34), for obtaining the degree of conformity between the visual information quality of monitoring image and monitoring requirement Relationship；First monitoring risk entropy getter (35), for obtaining monitoring dress according to the level of coverage and the inherent risk Set the first monitoring risk entropy to fixed target and/or priority control area monitoring；Second monitoring risk entropy getter (36), is used According to the motion information statistical result obtain security risk and moving target and fixed target that moving target introduces and/ Or the coupling risk between key monitoring region, the second monitoring risk that monitoring device monitors moving target is obtained accordingly Entropy；Third monitors risk entropy getter (37), for being acquired according to the degree of conformity Relation acquisition and monitoring device visual information The relevant third of quality monitors risk entropy；It monitors risk entropy getter (38), for that described first will monitor risk entropy, described the Two monitoring risk entropies and third monitoring risk entropy weight to obtain monitoring risk entropy；

First processing units (25), the monitoring risk entropy for monitoring image after merging are less than or equal to reference monitor image Monitoring risk entropy when, monitoring image after reference monitor image is merged as one and be no longer incorporated to new sub- monitoring figure Picture；

The second processing unit (26) is greater than the monitoring of reference monitor image for the monitoring risk entropy of monitoring image after merging When risk entropy, using the monitoring image after the merging as new reference monitor image, monitored risk entropy as new benchmark The monitoring risk entropy of monitoring image, and activate the combining unit (24)；

Selection unit (27), for arranging according to the descending sequence of monitoring risk entropy the monitoring image after each merging Position obtains one or more groups of presetting bits corresponding to monitoring image of the ranking after preceding one or more merging, is set It is set to preferred presetting bit.