CN1642272A - Method for judging move of object to lighted up of digital video recorder for monitoring - Google Patents
Method for judging move of object to lighted up of digital video recorder for monitoring Download PDFInfo
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- CN1642272A CN1642272A CN 200410015725 CN200410015725A CN1642272A CN 1642272 A CN1642272 A CN 1642272A CN 200410015725 CN200410015725 CN 200410015725 CN 200410015725 A CN200410015725 A CN 200410015725A CN 1642272 A CN1642272 A CN 1642272A
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Abstract
The invention relates to a method for a monitoring digital video recorder to identify movement of the irradiated object, including: converting an analog frame video signal arranged by a monitoring camera into a digital frame video signal, then detecting at least one component of edge component of the frame video data, the shape of the irradiated object and the characters such as dispersion value, rectangular graph, etc, and then temporarily storing this component. Simultaneously, comparing this component with the characters of the after frame video data arranged and detected and then determining if the irradiated object arranged by the monitoring camera moves, thus able to accurately judge if the irradiated object moves or not even if on the condition of quick moisture change or peripheral environment change in the place for arranging the monitoring camera, thus raising the monitoring efficiency.
Description
(1) technical field
The invention relates to the method that monitors that the differentiation irradiated object with digital video recorder moves, refer in particular to about can accurately judging a kind of method that monitors that the differentiation irradiated object with digital video recorder moves that whether moves of supervision with the irradiated object of camera setting.
(2) background technology
Recently, the supervision that can monitor a plurality of zones is simultaneously constantly being developed universal with digital video recorder (DVR:Digital VideoRecorder).Above-mentioned supervision is with the hard disk drive that comprises the hard disk memories such as (HDD) that can store jumbo video or voice data in the digital video recorder (DVR), with can be at re-recordable optical disc, such as on the CDs such as CD-RW, the CD drive (Disc Driver) of record store video or voice data.
In addition, above-mentioned general supervision digital video recorder (DVR) 300, as shown in Figure 1, with a plurality of supervision cameras 10 that disperse to be arranged on several zones that need monitor respectively
1-10
nConnect, simultaneously and a plurality of supervision with inductor 20
1-20
KBe connected etc. multiple peripheral device.
In addition, above-mentioned supervision can be connected with the PC 500 of the system operator that is positioned at distant location by network 400 with digital video recorder (DVR) 300, such as, monitor a plurality of supervision camera 10 at above-mentioned supervision digital video recorder (DVR) 300
1-10
nThe variable quantity of signal of video signal of production, when the variable quantity of this signal of video signal surpasses the benchmark variable quantity that is provided with in advance, perhaps from a plurality of supervision with inductor 20
1-20
KWhen receiving detection signal, just judging has effractor's intrusion incident to take place.
And, when detecting the incident generation, as shown in Figure 2, the signal of video signal that the supervision that is arranged on respective regions is produced with camera will be recorded on the hard disk (HDD) by said process.
In addition, state documentarily in the process of signal of video signal, incident is removed or is had time continuity and is recorded in signal of video signal on the hard disk, promptly detect the record size of incident video data, such as when surpassing 40Mbytes, this incident will be detected (Rec_Start), the incident video data is recorded, and is generated as a data file and manages.
Therefore, said system network operator just can confirm from the supervision images of above-mentioned supervision with digital video recorder (DVR) 300 real-time conveyings, perhaps can retrieve and confirm that record is stored in the data file on the above-mentioned hard disk, confirms with information such as effractors event situation before this then.
But, the general supervision with digital video recorder (DVR) 300 at above-mentioned supervision camera 10
1-10
nWhen the variable quantity of the video image of production surpasses the benchmark variable quantity, will be with above-mentioned supervision camera 10
1-10
nThe video image record of production stores in the hard disk, therefore, monitors with camera 10 in production
1-10
nThe humidity in place change suddenly, when perhaps surrounding enviroment change, just can not accurately differentiate irradiated object and whether move, will unnecessary video image record be stored in the limited hard disk of recording capacity, therefore will cause the reduction that monitors efficient.
(3) summary of the invention
The present invention proposes in order to address the above problem.The object of the present invention is to provide a kind of method that monitors that the differentiation irradiated object with digital video recorder moves, method of the present invention detect respectively relatively monitor with before the camera shooting/characteristic of later frame video data, whether differentiate irradiated object then moves, even thereby can be provided with under the situation that place humidity sharply changes or surrounding enviroment change that monitors with camera, can judge more accurately that also whether supervision move with the irradiated object of camera irradiation.
To achieve these goals, supervision of the present invention is characterized in that comprising with the method that the differentiation irradiated object of digital video recorder moves:
First step with monitoring that the analog frame vision signal with the camera production is converted to the digital frame video data, then, detects the characteristic of described frame video data, and interim storage;
Second step detects the characteristic of a following frame video data and the characteristic of above-mentioned interim storage and compares, and calculates the difference between these two characteristics then;
Third step, the difference between the characteristic that goes out according to aforementioned calculation judges that whether the irradiated object that monitors with the camera production moves.
Effect of the present invention:
The method that the supervision of the present invention that has above-mentioned formation and operate is as mentioned above moved with the differentiation irradiated object of digital video recorder, after will monitoring that frame video data with the camera setting is converted to the digital frame vision signal, edge (Edge) composition with this frame video data, the shape of irradiated object (Object Shape), and at least one the composition in dispersion value and the histogram characteristics such as (Histogram) detects storage temporarily then as the characteristic of this frame video data.Simultaneously, the characteristic of the frame video data that is provided with and detects with the back compares, judge then whether the irradiated object that monitors with the camera setting has produced mobile, even thereby can be provided with under the situation that place humidity sharply changes or surrounding enviroment change that monitors with camera, can judge more accurately that also whether supervision move with the irradiated object of camera irradiation, improve supervision efficient then.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is general supervision with data video cassette recorders (DVR) and a plurality of supervision with cameras and inductor, and the connection status figure of network operator's PC etc.;
Fig. 2 is the data file process sketch map of general supervision in the data video cassette recorders (DVR);
Fig. 3 has used the structure chart of the supervision of the method that supervision of the present invention moves with the differentiation irradiated object of digital video recorder with digital video recorder (DVR);
The performance plot of the frame video data that the method that Fig. 4 moves with the differentiation irradiated object of digital video recorder for supervision of the present invention detects;
The operational flowchart of the method that Fig. 5 moves with the differentiation irradiated object of digital video recorder for supervision of the present invention.
The symbol description of major part in the accompanying drawing:
10
1-10
n, camera 20
1-20
n, inductor
30, A/D converter 31, register system
32, analyzer 33, buffer
34, comparator 35, mobile judegment part
300, digital video recorder
400, network
500, PC
(5) embodiment
Below with reference to accompanying drawings the present invention is monitored that the embodiment of the method that the differentiation irradiated object with digital video recorder moves is elaborated.
Fig. 3 has used the structure chart of the supervision of the method that supervision of the present invention moves with the differentiation irradiated object of digital video recorder with digital video recorder (DVR).Above-mentioned supervision comprises A/D converter 30 with digital video recorder (DVR), register system 31, analyzer 32, buffer 33, comparator 34, and mobile judegment part 35.
In addition, above-mentioned A/D converter 30 will monitor with the analog frame vision signal of camera production and carry out the A/D conversion, be output as the digital frame video data then.Above-mentioned register system 31 is carried out and to be stored above-mentioned digital frame video data recording on the hard disk (HDD) sequence of operations.Above-mentioned register system 31 is according to the control signal from above-mentioned mobile judegment part 35 outputs, such as, generate the control signal of output along with judging irradiated object to move, optionally the record storage is through the digital frame video data of above-mentioned A/D converter 30 conversion outputs.
And, above-mentioned analyzer 32, as shown in Figure 4, analyze above-mentioned digital frame video data #1-#4 through obtaining after the A/D conversion, analyze edge (Edge) composition that detects respective frame then respectively, the shape of irradiated object (Object Shape), and dispersion value and histogram characteristics such as (Histogram) are stored in the above-mentioned buffer 33 temporarily.
In addition, above-mentioned analyzer 32 is analyzed the video data that carries out the next frame that obtains after the A/D conversion through above-mentioned A/D converter 30, analyze edge (Edge) composition that detects respective frame then respectively, the shape of irradiated object (Object Shape), and dispersion value and histogram characteristics such as (Histogram), be stored in the above-mentioned buffer 33 temporarily.Simultaneously, with the characteristic of the frame of interim storage and the characteristic of the frame that present analysis detects output to comparator 34 respectively before this.
And, 34 pairs of characteristics of importing respectively by said process of frame before of above-mentioned comparator, it is edge (Edge) composition, the shape of irradiated object (Object Shape), and dispersion value and histogram characteristics such as (Histogram), with edge (Edge) composition of present frame, the shape of irradiated object (ObjectShape), and dispersion value and histogram characteristics such as (Histogram) relatively calculate its difference mutually.
In addition, above-mentioned mobile judegment part 35 confirms relatively whether the difference between each characteristic that above-mentioned comparator 34 relatively calculates has surpassed the permission fiducial value of prior setting, if surpassed the permission fiducial value of prior setting, produced moving of irradiated object before just judging between frame and the present frame, then its corresponding control signal is transported to register system 31, then, the video data recording with present frame stores on the hard disk.
On the contrary, if the difference between preceding frame and the present frame characteristic does not have to surpass the permission fiducial value of setting in advance, its corresponding control signal will be outputed to register system 31, then, the video data of present frame just can not write down and store on the hard disk.Below will be described in more details this.
The operational flowchart of the method that Fig. 5 moves with the differentiation irradiated object of digital video recorder for supervision of the present invention.According to (simultaneously, referring to shown in Figure 3) shown in Figure 5, operating process of the present invention is explained as follows.
Flow process begins.
S10, above-mentioned supervision is carried out a series of supervisory work with digital video recorder (DVR) 300, monitors to disperse to be arranged on the video image of the supervision of monitor area with the camera production.
S11, at this moment, above-mentioned supervision is converted to the digital frame video data with the analog frame vision signal of camera production through A/D converter 30.
S12, and, when above-mentioned digital frame video data is temporarily stored in register system 31, be imported into analyzer 32, above-mentioned analyzer 32 is analyzed edge (Edge) composition that detects respective frame, the shape of irradiated object (Object Shape), and the characteristic of dispersion value and histogram respective frame such as (Histogram) are stored in its characteristic information in the above-mentioned buffer 33 then temporarily.
S13, then, if monitor when the digital frame video data that obtains after analog frame vision signal with the camera production is through the A/D conversion is input to above-mentioned analyzer 32 again, detect edge (Edge) composition of the video data of this present frame, the shape of irradiated object (Object Shape), and the characteristic of dispersion value and histogram present frames such as (Histogram), then, be stored in the above-mentioned buffer 33 temporarily.When carrying out aforesaid operations repeatedly, above-mentioned comparator 34 will compare the characteristic of each analyzed former frame that detects and the characteristic of present frame respectively by said process.
S14, in addition, in the middle of the above-mentioned comparison procedure, the difference between each characteristic that calculates, and output to above-mentioned mobile judegment part 35, does above-mentioned mobile judegment part 35 judge whether above-mentioned characteristic value similar?
S15, if the difference between each characteristic value that calculates has surpassed the permission fiducial value of prior setting, that is, judge among the flow process S14 that the above-mentioned characteristic value of mobile judegment part 35 judgements is not similar, produced moving of irradiated object before just judging between frame and the present frame.
S16, then, operation controlling recording system 31 stores the video data recording that is detected mobile present frame on the hard disk into.
S17, on the contrary, in flow process S14, if the difference between preceding frame and the present frame characteristic value does not have to surpass the permission fiducial value of setting in advance, promptly, when above-mentioned characteristic is similar, do not produce moving of irradiated object before will judging between frame and the present frame, the video data of present frame just can not write down and store on the hard disk.
Does S18 judge whether to finish the operation of DVR system? if do not finish, will get back to flow process S10, carry out as above a series of operation repeatedly, finish up to monitor system operation, whole flow process finishes.
Like this, just can only write down those is determined and has produced the video data that irradiated object moves, above-mentioned analyzer and comparator, and mobile judegment part can be arranged on the software or also can be set on the different hardware, above-mentioned analyzer also can be with edge (Edge) composition, the shape of irradiated object (Object Shape), and dispersion value and histogram characteristics such as (Histogram) detect and analyze as the characteristic of frame video data.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (5)
1, a kind of method that monitors that the differentiation irradiated object with digital video recorder moves is characterized in that comprising:
First step with monitoring that the analog frame vision signal with the camera production is converted to the digital frame video data, then, detects the characteristic of described frame video data, and interim storage;
Second step detects the characteristic of a following frame video data and the characteristic of above-mentioned interim storage and compares, and calculates the difference between these two characteristics then;
Third step, the difference between the characteristic that goes out according to aforementioned calculation judges that whether the irradiated object that monitors with the camera production moves.
2, supervision as claimed in claim 1 is characterized in that with the method that the differentiation irradiated object of digital video recorder moves:
In the described first step, be the marginal element with described frame video data, the shape of irradiated object, and at least one the composition in the characteristics such as dispersion value and histogram detect storage temporarily then as the characteristic of described frame video data.
3, supervision as claimed in claim 1 is characterized in that with the method that the differentiation irradiated object of digital video recorder moves:
In described second step, it is marginal element with the video data of the characteristic of described interim storage and a following frame, the shape of irradiated object, and at least one the composition in the characteristics such as dispersion value and histogram detects comparison, calculates the difference between its characteristic.
4, supervision as claimed in claim 1 is characterized in that with the method that the differentiation irradiated object of digital video recorder moves:
In the described third step, be difference between the described characteristic that calculates when surpassing the fiducial value of setting in advance, just judge that the irradiated object that monitors with the camera production has produced mobile.
5, supervision as claimed in claim 1 is characterized in that with the method that the differentiation irradiated object of digital video recorder moves:
Also comprise a step, that is, judging that the irradiated object of described supervision with the camera production produced when mobile, the video data recording of respective frame is stored in the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015725 CN1642272A (en) | 2004-01-09 | 2004-01-09 | Method for judging move of object to lighted up of digital video recorder for monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015725 CN1642272A (en) | 2004-01-09 | 2004-01-09 | Method for judging move of object to lighted up of digital video recorder for monitoring |
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| Publication Number | Publication Date |
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| CN1642272A true CN1642272A (en) | 2005-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410015725 Pending CN1642272A (en) | 2004-01-09 | 2004-01-09 | Method for judging move of object to lighted up of digital video recorder for monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378499B (en) * | 2007-08-29 | 2011-03-16 | Lg电子株式会社 | Method and apparatus for processing video frame |
| CN101536493B (en) * | 2006-11-08 | 2011-10-19 | 索尼爱立信移动通讯股份有限公司 | Camera and method for determing set in a camera |
-
2004
- 2004-01-09 CN CN 200410015725 patent/CN1642272A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101536493B (en) * | 2006-11-08 | 2011-10-19 | 索尼爱立信移动通讯股份有限公司 | Camera and method for determing set in a camera |
| CN101378499B (en) * | 2007-08-29 | 2011-03-16 | Lg电子株式会社 | Method and apparatus for processing video frame |
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