CN105554471B - Video sequence adjustment method and device based on event statistics - Google Patents
Video sequence adjustment method and device based on event statistics Download PDFInfo
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- CN105554471B CN105554471B CN201610038422.7A CN201610038422A CN105554471B CN 105554471 B CN105554471 B CN 105554471B CN 201610038422 A CN201610038422 A CN 201610038422A CN 105554471 B CN105554471 B CN 105554471B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/62—Control of parameters via user interfaces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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Abstract
The video sequence adjustment method based on event statistics that the invention discloses a kind of is applied to carry out multiple video cameras the monitoring client of live display in turn, including：Obtain the associated alarm event of each video camera；Count each video camera alarm event number associated in default measurement period, measurement period display priority of each corresponding video camera in a measurement period is set according to alarm event number, the live display for adjusting video sequence in next measurement period.The advantage of the invention is that, it is counted by the alarm event in a measurement period, it can learn that each video camera corresponds to which region in shooting environmental is easiest to that alarm event occurs, by the display priority for arranging video camera, the display duration for extending the high video camera of display priority, to which the shooting environmental more than emphasis display alarm event is live.
Description
Technical field
The present invention relates to field of video processing, more particularly to the video sequence adjustment method based on event statistics and dress
It sets.
Background technology
With the continuous broadening of safety monitoring product applications, hard disk video recorder product is widely used to domestic outer city
In the industries such as city, finance, public security, campus and the video monitoring system in place.With the fast development of monitoring device hardware technology,
The quantity for the video camera that hard disk video recorder has access to is more and more.Due to the explosive growth of number of cameras, people are often
All video camera facts cannot all be kept paying close attention in real time, and only take the mode of taking turn to check in all video cameras,
Or event when occurring by pop up video camera it is live in a manner of remind user.The mode of taking turn can not find to be closed in time
The event of note；And when popping up video camera fact, event has occurred and that.Historical experience shows：The event having occurred and that, in phase
As time and identical place more easily occur again.How in time, effectively, targetedly to find to be closed using video camera
The event of note, this is the very worth the problem of of probing into.
At present video sequence can only manual modification, modification complete after, video camera fact according to setting time with sequence,
It is shown in the display at a fixed time interval.In general, a display is only able to display simultaneously, quantity is few to be taken the photograph
Camera is live, and it is too small that quantity excessively may result in picture, monitoring effect unobvious.According to existing method, event of interest
It is frequently experienced in except the video camera live time.Such as there are 100 (Ct=100) a video camera, 4 split screen (C of man-machine upper unlatchingp=4)
Taking turn is opened in fact, switches a secondary screen every 30s (T=30s), checks that all scenes of all video cameras need 12.5 (T*
Ct/Cp/ 60) minute.So the tool that monitoring system can only often collect evidence as post-survey, but cannot timely find to pay close attention to
Event.Increasing with current camera quantity, which, which seems, becomes increasingly conspicuous.How video monitoring effect is improved,
Save human and material resources, more in time, effectively, targetedly find event of interest, this be one very it is worth probe into ask
Topic.
Current technical solution is under the application scenarios such as city, building, cell, because of the increasingly increase of number of cameras,
If paying close attention to the fact of each video camera in real time, just need to put into a large amount of manpower and material resources.The situation of reality is impossible real
When pay close attention to each camera scene.But it is limited in manpower and materials input, monitoring personnel tends not to send out in time
Existing event of interest.In most cases, monitor video is only used for post-mordem forensics.
Limited situation is put into manpower and materials, each video camera fact puts into the equal time, it is clear that is not one
Best selection.
It is how timely and effective and targetedly find the event to merit attention in numerous video camera facts are shown, it is existing
There is the problems of technology.
Invention content
It is of the existing technology in order to solve the problems, such as, a kind of method is now provided, the fact that can intelligently adjust video camera is aobvious
Show the time, to keep video monitoring more targeted.
A kind of video sequence adjustment method based on event statistics is applied to carry out multiple video cameras live in turn
The monitoring client of display, including：
Obtain associated alarm event in each shot by camera video；
Each video camera alarm event number associated in default measurement period is counted, is set according to alarm event number
Measurement period display priority of each corresponding video camera in a measurement period, for adjusting video in next measurement period
The live display of sequence；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration shows excellent with measurement period
The sum of display duration corresponding to first grade.
The method of video sequence adjustment based on event statistics, be by a large amount of alarm events (such as motion detection,
Occlusion detection, alarm input, manual alarm etc.) statistics, from statistical angle determine time that video camera shows, show
Duration and the frequency of display.
Alarm event includes：Alarm event that each video camera detects, by being set with associated other of corresponding video camera
The standby alarm event detected and alarm event input by user, including：Motion detection alarm, occlusion detection alarm, video
Lose alarm, sound detection, region invasion, article guard.The statistics of alarm event can make the system of single type alarm event
Meter, can also be that multiple alarm events are counted according to certain statistic algorithm.
Video sequence refers to the live display sequence of video camera.It is united by the alarm event in a measurement period
Meter can learn that each video camera corresponds to which region in shooting environmental is easiest to that alarm event occurs, by arranging video camera
Display priority extends the display duration of the high video camera of display priority, to the shooting ring more than emphasis display alarm event
Border is live.Make the live display of entire monitoring system that can realize that key area targetedly monitors.The time of measurement period
Length may include：It half a day, one day, a week, two weeks, one month etc., is adjusted according to the needs of user.
Furthermore, further include：
Each video camera alarm event number associated in each period video in default measurement period is counted, according to each
The alarm event number of a period sets period display priority of each corresponding video camera within each period；
The measurement period display priority of each video camera is added with period display priority, obtains the totality of each video camera
Display priority, the live display for adjusting video sequence in each period in next measurement period；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration, measurement period are shown preferentially
The display duration corresponding to display duration, period display priority corresponding to grade, the sum of three.
Other than the alarm number in the measurement period in length longer period of time, if concentrating hair in some period
Raw repeatedly alarm, can also react the key area of video camera shooting, such as using day as the period, then possible alarm event concentrates hair
Between raw 3 points to 4 points of morning, therefore this period of time certain video camera will report a large amount of alarm events, therefore to this kind of
The live display that video camera should also be as being subject to emphasis in this period.
By further showing fact at times in measurement period, by by the announcement of day part in a measurement period
Alert event reports number to report number to be combined consideration with the alarm event of entire measurement period, so that the fact of video camera is shown excellent
First grade on the whole and in period between weigh, keep live display more effective, when increasing corresponding video camera fact display
Between, it is easier to find alarm event in the corresponding time.The length of period is less than a measurement period, such as measurement period is one
It, then the period can be half an hour, a hour, two hours etc..
Furthermore, video sequence in next measurement period is adjusted according to the corresponding overall display priority of each video camera
Live display methods include：
Each video camera in video sequence is arranged from high to low according to overall display priority, and suitable according to arranging
Sequence and the corresponding live display duration of each video camera show fact successively.
Furthermore, further include：
When multiple video cameras are live to be shown simultaneously, according to the video camera number of display simultaneously, successively from video sequence
The video camera of corresponding number is taken to carry out live display, wherein multiple video cameras of display are highest by overall display priority simultaneously
The live of video camera shows that duration carries out live display.
The case where for split screen, such as show the fact (i.e. four split screens) of four video cameras simultaneously, then need unification simultaneously
The display time of the video camera of display.Therefore video camera is sorted from high to low according to overall display priority first so that total
Body display priority is close or identical video camera is close to showing and differ not too large on duration, according still further to same
When the number (i.e. split screen number) that shows take video camera to carry out live display, the several camera shootings shown simultaneously in this way from sequence successively
Machine differs not too large on display duration, avoids the video camera for causing overall display priority very low because excellent with overall display
The first highest video camera of grade shows and has been extended the excessive time simultaneously.
Furthermore, it is adjusted in next measurement period in day part according to the corresponding overall display priority of each video camera
The live display methods of video sequence includes：
Each video camera is arranged from high to low according to the display duration corresponding to overall display priority in the single period
Row obtain Fault Sequence, a length of former display duration when showing of the fact corresponding to the overall display priority of each video camera；
Judge whether former display duration of each video camera in the period is greater than or equal to predetermined threshold value, if so, silent
The designated position for recognizing sequence increases the live display of the video camera, a length of default display duration when showing, and the video camera exists
A length of original shows that duration subtracts the remaining display duration that default display duration obtains when the live display of original position in Fault Sequence,
Video camera in original position is adjusted to the corresponding remaining position for showing duration in Fault Sequence；If it is not, then the video camera exists
Original position shows that duration display is live by former in Fault Sequence.
It improves and shows that duration can also be realized by increasing the live display frequency of video camera.If alarm thing
The live of video camera more than part number shows that duration improves, and is found generally although alarm event can be improved to a certain extent
Rate, but shown in effect not as good as increasing corresponding video camera fact in the corresponding time, increase the frequency phase that video camera fact is shown
When in the exposure rate for improving corresponding video camera and showing, to can be much sooner to alarm event discovery in the corresponding period.
The present invention also provides the device of corresponding method, to realize the adjustment to video sequence, with more added with for
It finds alarm event to property, improves the safety of monitoring area.
A kind of video sequence intelligent regulating device based on event statistics, it is live aobvious in turn for being carried out to multiple video cameras
The monitoring client shown, including：Alarm event acquiring unit, measurement period statistic unit and live display unit；
Alarm event acquiring unit obtains associated alarm event in each shot by camera video；
Measurement period statistic unit alarm event number associated in default measurement period, according to alarm event number
Measurement period display priority of each corresponding video camera in a measurement period is set, for adjusting live display unit under
The video sequence fact carried out in one measurement period is shown；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration shows excellent with measurement period
The sum of display duration corresponding to first grade.
Alarm event includes：Alarm event that each video camera detects, by being set with associated other of corresponding video camera
The standby alarm event detected and alarm event input by user, including：Motion detection alarm, occlusion detection alarm, video
Lose alarm, sound detection, region invasion, article guard.The statistics of alarm event can make the system of single type alarm event
Meter, can also be that multiple alarm events are counted according to certain statistic algorithm.
Video sequence refers to the live display sequence of video camera.It is united by the alarm event in a measurement period
Meter can learn that each video camera corresponds to which region in shooting environmental is easiest to that alarm event occurs, by arranging video camera
Display priority extends the display duration of the high video camera of display priority, to the shooting ring more than emphasis display alarm event
Border is live.Make the live display of entire monitoring system that can realize that key area targetedly monitors.The time of measurement period
Length may include：It half a day, one day, a week, two weeks, one month etc., is adjusted according to the needs of user.
Furthermore, further include：Period statistic unit, overall priority acquiring unit；
Period statistic unit counts each video camera alarm thing associated in each period video in default measurement period
It is preferential to set period display of each corresponding video camera within each period according to the alarm event number of each period for part number
Grade；
The measurement period display priority of each video camera is added by overall priority acquiring unit with period display priority,
Obtain the overall display priority of each video camera, for adjust live display unit in next measurement period in each period into
Capable video sequence fact is shown；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration, measurement period are shown preferentially
The display duration corresponding to display duration, period display priority corresponding to grade, the sum of three.
Furthermore, live display unit adjusts next statistics week according to the corresponding overall display priority of each video camera
The live display methods of video sequence includes in phase：
Each video camera in video sequence is arranged from high to low according to overall display priority, and suitable according to arranging
Sequence and the corresponding live display duration of each video camera show fact successively.
Furthermore, live display unit multiple video cameras are live show simultaneously when, according to putting in order and respectively take the photograph
The corresponding live display duration of camera shows that live method is successively：According to simultaneously display video camera number, successively from regarding
The video camera of corresponding number is taken to carry out live display in frequency sequence, wherein multiple video cameras of display are preferential by overall display simultaneously
The live of the highest video camera of grade shows that duration carries out live display.
Furthermore, live display unit adjusts next statistics week according to the corresponding overall display priority of each video camera
The live display methods of video sequence includes in interim day part：
Each video camera is arranged from high to low according to the display duration corresponding to overall display priority in the single period
Row obtain Fault Sequence, a length of former display duration when showing of the fact corresponding to the overall display priority of each video camera；
Judge whether former display duration of each video camera in the period is greater than or equal to predetermined threshold value, if so, silent
The designated position for recognizing sequence increases the live display of the video camera, a length of default display duration when showing, and the video camera exists
A length of original shows that duration subtracts the remaining display duration that default display duration obtains when the live display of original position in Fault Sequence,
Video camera in original position is adjusted to the corresponding remaining position for showing duration in Fault Sequence；If it is not, then the video camera exists
Original position shows that duration display is live by former in Fault Sequence.
It is an advantage of the current invention that being counted by the alarm event in a measurement period, each video camera can be learnt
Which region is easiest to that alarm event occurs in corresponding shooting environmental, by arranging the display priority of video camera, extends display
The display duration of the high video camera of priority, to which the shooting environmental more than emphasis display alarm event is live；By the way that one is united
The alarm event number of day part is combined consideration with the alarm event number of entire measurement period in the meter period, increases corresponding
Video camera fact shows duration, it is easier to find alarm event in the corresponding time；It is real to increase corresponding video camera in the corresponding time
Condition shows that the frequency that increase video camera fact is shown, which is equivalent to, improves the exposure rate that corresponding video camera is shown, in correspondence
Period to alarm event discovery can be much sooner.
Description of the drawings
Fig. 1 is the specific implementation flow chart of one embodiment of the invention.
Specific implementation mode
To make the present invention be illustrated in further detail, detailed explanation is carried out to the present invention in conjunction with drawings and examples.
Video sequence method of adjustment based on event statistics is a kind of method counted based on big data.The present invention is base
In believe certain event for having occurred and that at the same time with identical place, the historical experience of the probability bigger occurred again and
Design.
The video sequence intelligent regulating device based on event statistics of present example of the present invention, including：Alarm event obtains
Take unit, measurement period statistic unit, period statistic unit, overall priority acquiring unit and live display unit.
The alarm event that wherein alarm event acquiring unit obtains, can be the alarm that video camera reports, including movement inspection
Survey alarm, occlusion detection alarm, video-losing alarm, sound detection, region invasion, article guard etc..Can also be that alarm is defeated
Enter alarm, the alarm that mainly third party device reports, the alarm that can also be triggered manually or importing have occurred and that event
(such as the malignant event once occurred in camera supervised region) or monitoring client carry out intellectual analysis according to camera video
Obtained event.
Video sequence includes 8 video camera (C in the present embodimentt=8), respectively video camera 1,2,3,4,5,6,7,8, depending on
The default sequence of frequency sequence is 12345678 (serial number indicates video camera serial number), and passes through 4 split screen (Cp=4) display is live, i.e.,
It first shows video camera 1,2,3,4, then shows video camera 5,6,7,8, it is primary live every duration T (default display duration) switching.
Before no video sequence intelligent regulating device of the enabling based on event statistics, switch fact by default sequence, after enabling,
Video sequence in each measurement period is adjusted with the statistical result of previous measurement period.
Measurement period is set as one day in the present embodiment, in other realization methods, can be adjusted according to specific needs
It is whole：Longer time, such as a week or one month etc. such as may be used in order to improve accuracy；And if to consider to count
Calculation amount considers the energy consumption of equipment, can also shorten time span, for example, half a day.It is shown daily in present example of the present invention
Priority (i.e. measurement period display priority) HdValue is 0~5, shares 6 ranks, default value 0, wherein into line delay
Rank is 1~5 totally 5, i.e. Ld=5, (i.e. measurement period display priority corresponds to the corresponding display duration of daily display priority
Duration) be (Hd/Ld)*T.Half an hour display priority HhValue (i.e. period display priority) is 0~5, totally 6 ranks, is write from memory
It is 0 to recognize value, wherein the rank into line delay is 1~5 totally 5, i.e. Lh=5, the corresponding display duration of half an hour display priority
(i.e. the corresponding duration of period display priority) is (Hh/Lh)*T.It is a length of when the live display of each video camera in video sequence：In advance
If showing the display duration corresponding to duration, measurement period display priority, the display duration corresponding to period display priority,
The sum of three.A length of T when the live display of i.e. each video cameraH=(Hh/Lh+Hd/Ld)*T+T。
The video sequence adjusting apparatus based on event statistics is enabled in the present embodiment to adjust the live display of video sequence
Method is as shown in Figure 1, include：
Each video camera that measurement period statistic unit statistics alarm event acquiring unit obtains institute in a measurement period
Associated alarm event number (abbreviation alarm quantity), system of each video camera in the measurement period is set according to alarm quantity
Period display priority is counted, it is aobvious for adjusting the video sequence fact that live display unit carries out in next measurement period
Show.
Measurement period is one day in present example, and the series of daily display priority can determine as needed, currently
Live priority is 1-5 in embodiment, and the alarm number threshold value of corresponding each priority is respectively 10,20,30,40 and 50.
Priority is lower, and corresponding alarm number threshold value is lower.Daily display priority often increases by one grade, and the display time is increased by T/
Ld.Wherein, live display unit carries out the live display of video sequence in next measurement period that multiple schemes may be used is real
It is existing.
Scheme one, live display unit carry out the display of video sequence according to measurement period display priority.
From convenient for calculate consider, can directly utilize daily display priority to each video camera progress priority from height to
Low sequence, and being shown successively by measurement period display priority height in next measurement period, and priority is higher takes the photograph
Camera fact shows that duration is longer, often increases the daily display priority of level-one, and display duration increases T/Ld。
When there is a situation where that the daily display priority of multiple video cameras is identical, daily display priority is identical multiple to be taken the photograph
Camera is arranged by preset rules, such as is shown according to the live display order of acquiescence.Such as video camera 1,2,3,4,5,6,7,8
Daily display priority is respectively 2,3,3,5,1,1,0,0, then after being ranked up according to the daily display priority of each video camera
Video sequence be video camera 4,2,3,1,5,6,7,8.When the live display of each video camera a length of default display duration with daily
The sum of display duration corresponding to display priority, i.e. TH=(Hd/Ld) * T+T, the i.e. fact of video camera 4,2,3,1,5,6,7,8
Show that duration is respectively 2T, 1.6T, 1.6T, 1.4T, 1.2T, 1.2T, T, T.Video camera in video sequence is sequentially pressed respective
Fact shows that duration carries out live display.
When there are split screen the case where (i.e. multiple video cameras are carried out at the same time live display as one group), then according to daily display
The sequence of priority is first arranged to obtain video sequence successively, then by the video camera number shown simultaneously from video sequence according to
The fact of secondary display each group video camera, and same group of video camera presses the live display of the highest video camera of daily display priority
Duration carries out live display.I.e. in the video camera of same screen display 4,2,3,1, the daily highest video camera of display priority
A length of 2T when 4 live display, then the display duration of four video cameras is 2T on this screen.
Another factor for influencing priority is the alarm quantity in the unit interval (i.e. single period).If a camera shooting
There is a large amount of alarm in machine within certain a period of time (such as morning), then live priority of the video camera in the period in morning
Also it should adjust.Therefore, video sequence intelligent regulating device also has period statistics single other than measurement period statistic unit
Member and overall priority acquiring unit.In scheme two and scheme three, it is preferential that measurement period statistic unit obtains measurement period
After grade, each video camera alarm thing associated in each period in default measurement period is counted also according to period statistic unit
It is preferential to set period display of each corresponding video camera within each period according to the alarm event number of each period for part number
Grade；The measurement period display priority of each video camera is added by overall priority acquiring unit with period display priority, is obtained
The overall display priority of each video camera, the live display for next measurement period.
Increase a period display priority H in scheme two and scheme threeh, when a measurement period is divided into multiple
Section, the length of period are less than a measurement period, such as measurement period is one day, then the period can be half an hour, it is one small
When, two hours etc..A measurement period is divided into 48 periods in the present embodiment, i.e., each period is half an hour.When setting
Section display priority is 6 class, and default value 0, the priority of long delay is 1~5 when generating display, corresponding alarm quantity
Threshold value be respectively 5,10,15,20 and 25, total Lh=5.The half an hour display priority corresponding display time from small to large according to
It is secondary to be and T/Lh、2T/Lh、3T/Lh、4T/LhAnd 5T/Lh。
In present example, measurement period display priority institute is increased the increased display time with period display priority
The display time it is identical, be T, and the priority quantity divided is also identical, is 6.It is increased often to increase a priority institute
Show that duration is also identical.But in other realization methods, measurement period display priority quantity and at different levels increased
Show that duration, period display priority quantity and increased display duration at different levels all can be with independent setting, highest systems
Counting period display priority can be different from highest period display priority, and increased display duration at different levels can not also
Together, such as to can not be equivalent increased, is configured with specific reference to actual needs.Present example is for convenient for calculating and use up
From the point of view of possibility is uniform, it is set as identical.
Scheme two, live display unit by each video camera in video sequence according to overall display priority from high to low into
Row arrangement, and according to putting in order and each video camera is corresponding live shows that duration shows fact successively.
In scheme two, period statistic unit counts each period alarm quantity, and the period display for obtaining day part is preferential
The measurement period display priority of each video camera is added with period display priority, obtains by grade, overall priority acquiring unit
The overall display priority of each video camera.
Alarm quantity is less than current half an hour display priority value range minimum value, declines one grade of priority, minimum
It is 0.Alarm quantity is more than current priority value range maximum value, rises one grade of priority, is up to 5.At alarm quantity
In in current priority value range, then without any processing.Priority value in the single period and bigger time
The priority cooperation of range (such as one day) is handled.Such as live priority of the video camera 1 in some day is 5, the same day 8：00~
8:30 live priority is 2, then the same day 8：00~8:In 30 this period, the fact of video camera 1 a length of T when showingH=
(Hh/Lh+Hd/Ld) * T+T, i.e. 2.4T.
There are split screen, similarly, is first arranged and regarded successively according to the sequence of overall display priority
Frequency sequence, further according to being carried out at the same time the video camera number of live display using the video camera shown simultaneously in video sequence as one
Group shows the fact of each group video camera successively, and same group of video camera presses the reality of the highest video camera of daily display priority
Condition shows that duration carries out live display.
It promotes video camera and shows that another method of duration is to increase the display frequency of video camera fact, in present example
In, improve the display duration of video camera in such a way that scheme three promotes display frequency.
Scheme three, when each period starts, live display unit first obtains all video cameras according to overall priority
It takes the display duration corresponding to the overall display priority of the present period of unit acquisition to be ranked up from high to low to be given tacit consent to
Sequence, when each video camera totality display priority corresponding display for carrying out live display is a length of former to show duration.Then, live
Display unit judges that the former of each video camera shows whether duration is more than preset threshold value：For the video camera being judged as YES,
The designated position of Fault Sequence increases the live display of the video camera, and a length of minimum overall display priority is corresponding aobvious when display
Show duration, and corresponding display duration (i.e. video camera is reduced in live display of the video camera in Fault Sequence at original position
Former display duration in the display of original position fact corresponding to a length of totality display priority subtracts preset display duration
Obtained remaining display duration afterwards), it is real reduction to be shown the video camera after duration is moved to the corresponding position progress of Fault Sequence
Condition is shown；For the video camera being judged as NO, in the original position of Fault Sequence according to the corresponding display of overall display priority
Duration display is live.
Wherein, if remaining show that duration is identical as the display duration of other video cameras in Fault Sequence, according to default
Rule adjustment to the corresponding position of Fault Sequence.
In present example, by taking video camera 1 as an example, when video camera 1, the overall display priority institute within some period is right
When the display duration answered is more than preset increasing when display threshold (present example 2T), the display time of video camera is more than 2T,
Then increase the live display of the video camera 1 in the specified location of original sequence, the display time is preset display duration, i.e.,
Round cut interval time T, accordingly the original display duration at Fault Sequence of video camera 1 reduce by a round cut interval time T；?
When display duration corresponding to other periods overall display priority of the video camera 1 is less than 2T, video camera 1 is in original video sequence
Column position is shown.In present example, each video camera fact of Fault Sequence is shown arranges at equal intervals, therefore in order to make
Increase to the video camera probability of occurrence relative equilibrium of insertion, specified position is other realizations at the half of Fault Sequence
It can as needed be specified at other positions, such as one third, at 1/5th etc. in mode.Wherein, if complimentary bit
The video camera and other video cameras set are carried out at the same time live display (opening split screen), then with total in the video camera of display simultaneously
The highest video camera of body display priority shows that duration is shown.Video camera is separating corresponding display duration for being inserted into
After showing fact at position, original position shows that duration correspondingly reduces in Fault Sequence, and Fault Sequence is basis
Long array when display, if video camera, also in original position, if opening split screen, which can be according to original
Longest shows that duration is shown in the video camera shown simultaneously in some positions, can not play the effect for reducing corresponding display duration,
Therefore, the video camera at original position will be adjusted to the corresponding position for showing duration in Fault Sequence according to display duration.Such as
Fruit video camera is by taking video camera 1 as an example, if original shown by each video camera after long array when overall display priority correspondence display
Sequentially 14325768 (serial numbers indicate video camera serial numbers), when overall display priority of video camera 1 corresponding display a length of 2T, then
It needs to separate a T and be inserted at Fault Sequence half, be accordingly changed into 143215768, after separating a T at this time, video camera 1
Original position shows that duration becomes T, and the display duration of video camera 7, video camera 6 and video camera 8 be respectively T+T/5, T,
T, therefore video camera 1 should be moved to after video camera 7, that is, be adjusted to the corresponding position for showing duration in Fault Sequence.Due to taking the photograph
A length of T, identical as video camera 6 and the display duration of video camera 8 when the remaining display of camera 1, therefore is determined according to preset rules
The insertion position of video camera 1, in present example, preset rules are, identical silent according to video camera in display duration
Recognize the sequencing arrangement in sequence, i.e. original video camera 1 comes 8 front of video camera 6 and video camera, then video camera insertion position
It should also be as before video camera 6 and video camera 8, sequence becomes 432157168.In other embodiment, preset rules can also be set
Be set to, in the case that display duration is identical do not carry out intelligent sequencing according to video camera when initial order arranged.
In this way, single camera is split by extended display duration, is added to needs and shows in fact
The period of condition can effectively find alarm event much sooner.
Here a simple hypothesis can be done.Yesterday, in 3:00 AM~3：30 have occurred accident.Video camera 1 is examined
Measure a large amount of alarms.3：00~3：30 this period video camera 1 half an hour display priority HhAutomatically 5 are set to, the same day
Daily display priority is also set to Hd=5.Second day, an accident can occur in random time, be happened at morning 3：00~
3：30 probability is 80%.So, by normal round cut, video camera 1 is it can be found that the probability of the event is：
Pa=(Ct/Cp) * T/T=50%；
After opening adjustment, probability of detection is：
Pb=(Hd*T/Ld+T)/[(Ct/Cp)*T+5*T/5]*0.2+((Hh/Lh+Hd/Ld)*T+T)/[(Ct/Cp)*T+5*T/
5] * 0.8=73.3%.
Present example is stated just for the alarm of motion detection, and other alarms, such as occlusion detection are accused
Alert, video-losing alarm, sound detection alarm, region invasion etc. are also applicable in completely.For not reported correspondingly with video camera
The types alarm such as alert input, as long as the correspondence of binding and video camera, realization method are also consistent.In addition, also supporting defeated manually
Enter alarm event or each priority of manual modification.The statistical method of alarm event can be the alarm event system of single type
Meter can also be the sum of multiple types alarm event statistics, or carry out corresponding alarm event statistics according to a certain percentage
Calculate, according to specific needs with depending on actual conditions.
It, can also be by the number of display simultaneously, successively from sequence in other realization methods with split screen
In take the video camera of corresponding number to carry out live display, wherein multiple video cameras taking the photograph by overall highest priority of display simultaneously
Camera shows that duration is shown, when display of video camera a length of normal display duration and measurement period display priority corresponding to
The sum of increased display duration corresponding to increased display duration and period display priority.
It is worth noting that, reporting more video camera for alarm quantity, it should artificially determine alarm parameter (such as spirit
Sensitivity) configuration it is whether reasonable, to reduce rate of false alarm, adjustment video sequence is enable more accurately and effectively to reflect practical feelings
Condition.
The present invention can also coordinate with existing alarm linkage preview, can reach better effect.Alarm linkage
Preview refers to when alerting, and linkage camera directly pops up corresponding fact.
It is an advantage of the current invention that being counted by the alarm event in a measurement period, each video camera can be learnt
Which region is easiest to that alarm event occurs in corresponding shooting environmental, by arranging the display priority of video camera, extends display
The display duration of the high video camera of priority, to which the shooting environmental more than emphasis display alarm event is live；By the way that one is united
The alarm event of day part reports number to report number to be combined consideration with the alarm event of entire measurement period in the meter period, increases
Corresponding video camera fact is added to show the time, it is easier to find alarm event in the corresponding time；Increase in the corresponding time corresponding
Video camera fact shows that the frequency that increase video camera fact is shown, which is equivalent to, improves the exposure rate that corresponding video camera is shown, from
And it can be much sooner to alarm event discovery in the corresponding period.
Claims (10)
1. a kind of video sequence adjustment method based on event statistics is applied to carry out multiple video cameras live aobvious in turn
The monitoring client shown, which is characterized in that including：
Obtain associated alarm event in each shot by camera video；
Each video camera alarm event number associated in default measurement period is counted, it is each right to be set according to alarm event number
Measurement period display priority of the video camera in a measurement period is answered, for adjusting video sequence in next measurement period
Live display；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration and measurement period display priority
The sum of corresponding display duration.
2. the video sequence adjustment method based on event statistics as described in claim 1, which is characterized in that further include：
Count each video camera alarm event number associated in each period video in default measurement period, according to it is each when
The alarm event number of section sets period display priority of each corresponding video camera within each period；
The measurement period display priority of each video camera is added with period display priority, obtains the overall display of each video camera
Priority, the live display for adjusting video sequence in each period in next measurement period；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration, measurement period display priority institute
Display duration corresponding to corresponding display duration, period display priority, the sum of three.
3. the video sequence adjustment method based on event statistics as claimed in claim 2, which is characterized in that according to each camera shooting
The live display methods that the corresponding overall display priority of machine adjusts video sequence in next measurement period includes：
Each video camera in video sequence is arranged from high to low according to overall display priority, and according to putting in order and
The corresponding live display duration of each video camera shows fact successively.
4. the video sequence adjustment method based on event statistics as claimed in claim 3, which is characterized in that when multiple camera shootings
When machine fact is shown simultaneously, according to the method to put in order and the corresponding live display duration of each video camera shows fact successively
For：According to the video camera number of display simultaneously, the video camera of corresponding number is taken to carry out live display from video sequence successively,
In multiple video cameras of display simultaneously press the live of the overall highest video camera of display priority and show that duration carries out live display.
5. the video sequence adjustment method based on event statistics as claimed in claim 2, which is characterized in that according to each camera shooting
The live display methods that the corresponding overall display priority of machine adjusts video sequence in day part in next measurement period includes：
Each video camera is carried out arranging from high to low according to the display duration corresponding to overall display priority in the single period
To Fault Sequence, when live display corresponding to the overall display priority of each video camera is a length of former to show duration；
Judge whether former display duration of each video camera in the period is greater than or equal to predetermined threshold value, if so, in acquiescence sequence
The designated position of row increases the live display of the video camera, a length of default display duration when showing, and the video camera is being given tacit consent to
A length of original shows that duration subtracts the remaining display duration that default display duration obtains when the live display of original position in sequence, will locate
It is adjusted to the corresponding remaining position for showing duration in Fault Sequence in the video camera of original position；If it is not, then the video camera is being given tacit consent to
Original position shows that duration display is live by former in sequence.
6. a kind of video sequence intelligent regulating device based on event statistics, for carrying out live in turn show to multiple video cameras
Monitoring client, which is characterized in that including：Alarm event acquiring unit, measurement period statistic unit and live display unit；
Alarm event acquiring unit obtains associated alarm event in each shot by camera video；
Measurement period statistic unit alarm event number associated in default measurement period, sets according to alarm event number
Measurement period display priority of each corresponding video camera in a measurement period, for adjusting live display unit next
The video sequence fact carried out in measurement period is shown；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration and measurement period display priority
The sum of corresponding display duration.
7. the video sequence intelligent regulating device based on event statistics as claimed in claim 6, which is characterized in that further include：When
Section statistic unit, overall priority acquiring unit；
Period statistic unit counts each video camera alarm event associated in each period video in default measurement period
Number, period display priority of each corresponding video camera within each period is set according to the alarm event number of each period；
The measurement period display priority of each video camera is added by overall priority acquiring unit with period display priority, is obtained
The overall display priority of each video camera carries out in next measurement period in each period for adjusting live display unit
Video sequence fact is shown；
Wherein, a length of when the live display of each video camera in video sequence：Default display duration, measurement period display priority institute
Display duration corresponding to corresponding display duration, period display priority, the sum of three.
8. the video sequence intelligent regulating device based on event statistics as claimed in claim 7, which is characterized in that fact display is single
Member adjusts the live display methods packet of video sequence in next measurement period according to the corresponding overall display priority of each video camera
It includes：
Each video camera in video sequence is arranged from high to low according to overall display priority, and according to putting in order and
The corresponding live display duration of each video camera shows fact successively.
9. the video sequence intelligent regulating device based on event statistics as claimed in claim 7, which is characterized in that fact display is single
Member multiple video cameras are live show simultaneously when, according to putting in order and each video camera is corresponding live shows that duration is shown successively
Live method is：According to the video camera number of display simultaneously, the video camera of corresponding number is taken to carry out from video sequence successively
Fact display, wherein progress when multiple video cameras of display press the live display of the highest video camera of overall display priority simultaneously
The live display of row.
10. the video sequence intelligent regulating device based on event statistics as claimed in claim 7, which is characterized in that fact display
Unit adjusts the fact of video sequence in day part in next measurement period according to the corresponding overall display priority of each video camera
Display methods includes：
Each video camera is carried out arranging from high to low according to the display duration corresponding to overall display priority in the single period
To Fault Sequence, when live display corresponding to the overall display priority of each video camera is a length of former to show duration；
Judge whether former display duration of each video camera in the period is greater than or equal to predetermined threshold value, if so, in acquiescence sequence
The designated position of row increases the live display of the video camera, a length of default display duration when showing, and the video camera is being given tacit consent to
A length of original shows that duration subtracts the remaining display duration that default display duration obtains when the live display of original position in sequence, will locate
It is adjusted to the corresponding remaining position for showing duration in Fault Sequence in the video camera of original position；If it is not, then the video camera is being given tacit consent to
Original position shows that duration display is live by former in sequence.
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| TWI657697B (en) * | 2017-12-08 | 2019-04-21 | 財團法人工業技術研究院 | Method and device for searching video event and computer readable recording medium |
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| JP7200493B2 (en) * | 2018-03-29 | 2023-01-10 | 京セラドキュメントソリューションズ株式会社 | Monitoring system |
| CN108810461B (en) * | 2018-05-18 | 2021-04-16 | 浙江大华技术股份有限公司 | Monitoring method and device, terminal and readable storage medium |
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| CN109379563B (en) * | 2018-10-30 | 2020-10-23 | 华南师范大学 | Method and system for monitoring video data storage management |
| CN111836002B (en) * | 2019-04-15 | 2022-06-14 | 浙江宇视科技有限公司 | Video polling method, device and server |
| CN110740295B (en) * | 2019-09-30 | 2021-08-13 | 视联动力信息技术股份有限公司 | Round-robin playing method and device for video stream monitored by video network |
| CN112770081B (en) * | 2019-11-01 | 2023-05-02 | 杭州海康威视数字技术股份有限公司 | Parameter adjustment method and device of monitoring equipment, electronic equipment and storage medium |
| CN112991655B (en) * | 2019-12-14 | 2022-06-14 | 浙江宇视科技有限公司 | Method and device for dynamically adjusting monitoring camera set |
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