CN103517039A - Time division searching method based on time-space characteristics for monitoring video information with pan-tilt control - Google Patents
Time division searching method based on time-space characteristics for monitoring video information with pan-tilt control Download PDFInfo
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- CN103517039A CN103517039A CN201310406107.1A CN201310406107A CN103517039A CN 103517039 A CN103517039 A CN 103517039A CN 201310406107 A CN201310406107 A CN 201310406107A CN 103517039 A CN103517039 A CN 103517039A
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Abstract
The invention discloses a time division searching method based on time-space characteristics for monitoring video information with pan-tilt control. According to the method, video information with presetting bit cruising in a video monitoring system can be respectively stored, displayed and output through independent windows according to presetting bits and cruising interval time, and continuous cruising video files can also be displayed and output according to the presetting bits; when video storage is carried out, video files corresponding to the presetting bits in number are established and stored according to the number of the presetting bits, and each video file only stores video information corresponding to the corresponding video file; when displaying and output are carried out, corresponding display windows are set up for the presetting bits, each window only displays a video of the corresponding presetting bit, the display windows corresponding to the presetting bits are distributed at different positions of a screen according to spatial attributes of the presetting bits, and time-space characteristics of a monitoring area are visually embodied. The method solves the problem that a traditional video monitoring system is difficult in quick searching of the video monitoring information with pan-tilt control.
Description
Technical field
The present invention relates to the Video Information Retrieval Techniques: technology of technical field of video monitoring, relate in particular to having retrieval and the storage means of the video information that cradle head control video camera obtains.
Background technology
Video security monitoring system is disposed in a large number at social face, in police field, cracking of cases and social security are safeguarded to have vital effect, and the construction along with large-scale safe protection engineerings such as " day net engineering ”,“ safe cities ", and the extensive use of various video monitoring equipments in society, utilize video image to become a reality for case investigation service, and shown outstanding achievement.
In video investigation, obtain the behind of excellent military success, have investigator's sagacity, also have multitude of video monitor to check the hardships of video information.The deployment of multitude of video control point, video information is index and doubly increases.In magnanimity video information, it is a technical bottleneck that key message is retrieved, although have some achievements in research, at present video monitoring in police service application, retrieval key message or the video monitoring person of take checks that original video information is as main.
In the front end of video surveillance point is disposed, disposed at present in a large number the video camera with The Cloud Terrace.By cradle head control, can change the monitoring direction of video camera, obtain the more video information of volume of single-point, also reduced the deployment of position, control point, save video monitoring system construction cost.By cradle head preset positions is set, cruise, can make video camera have the different direction of continuous monitoring discontinuously.The video information that has cradle head control video camera to obtain, can cruising and switch continuously with interval the picture of different presetting bits with The Cloud Terrace.When video monitoring person checks the video information that cradle head preset positions cruises, because video pictures does not stop to switch in each presetting bit, can not directly to the video information of definite The Cloud Terrace direction, retrieve, video monitoring person can not finely concentrate one's energy when searching common-denominator target, not only reduce video and check efficiency, also can increase the probability of missing accidentally common-denominator target, lose cracking of cases opportunity.Therefore, although there is the CCTV camera of cradle head control, in the situation that presetting bit is cruised, monitor larger spatial dimension, also brought video monitoring person to check the inconvenience of video information and case investigation.
Given this, the present invention proposes based on space-time characterisation there being the monitoring video information time-division retrieval technique of cradle head control, this technology is by carrying out cutting apart and recombinating on a time period to the video information of cruising, show simultaneously and store the video information of each presetting bit, can not increase under the prerequisite of existing video monitoring system hardware and institutional framework, improve the police service investigation actual combat efficiency of video monitoring system.
Summary of the invention
(1) technical problem that will solve.
For the cradle head preset positions set forth above retrieval difficulty that monitor video exists of cruising, main purpose of the present invention is to propose a kind of video time-division retrieval technique, so that monitor video can timesharing Storage & Display, improves the recall precision of monitor video.
(2) technical scheme.
Reach the above object, technical scheme provided by the invention is as follows.
A kind of method based on space-time characterisation Divided Retrieving when having the monitoring video information of cradle head control, the method is to the video information that has presetting bit to cruise in video monitoring system, according to presetting bit with cruise interval time, video information can be stored respectively by presetting bit and show output by independent window, also can by presetting bit, show output to the video file that cruises continuously; When carrying out video storage, the video file that creates corresponding number according to presetting bit number is stored, and each video file is only stored the video information of corresponding presetting bit; When showing output, for each presetting bit creates corresponding display window, each window only shows the video of corresponding presetting bit, and according to the space attribute of presetting bit, the diverse location at screen distributes display window corresponding to presetting bit, and the space-time characterisation of guarded region is intuitively embodied; When live play, each presetting bit window only shows real-time video when The Cloud Terrace cruises to this presetting bit, and when The Cloud Terrace cruises in other presetting bit, the window having no truck with shows the last frame image of this presetting bit; When historical playback, can play-over corresponding presetting bit video file, when the video file that cruises continuously of not storing respectively by presetting bit is retrieved, according to presetting bit number and cruise interval time, whole video file is carried out to time-division sampling, each presetting bit video information is carried out to independence and play continuously.
In such scheme, described video monitoring system refers to the video security monitoring system of building according to standards such as " safety and protection system technical specification ", " video security monitoring System Engineering Design standards " and " requirement of video security monitoring systems technology ".
In such scheme, described presetting bit is cruised and is referred to that after the presetting bit that The Cloud Terrace is arranged, The Cloud Terrace cruises according to the time of staying pointwise position of presetting bit order and setting.
In such scheme, the described video that cruises refers to the video information that video camera obtains when The Cloud Terrace carries out presetting bit and cruises.
In such scheme, described live play refers to be play real-time video, and the real-time video of checking monitoring scene, in live play, becomes video information the video information file of each presetting bit by presetting bit separate, stored.Cruising in process in real time, the time period of each presetting bit video information is
P
i?=?{?(?t
i?,?t
i?+?I
i?)?|?i∈Z
+?}?(1)
P in formula (1)
ifor the demonstration i presetting bit video information and section set memory time, t
ifor The Cloud Terrace is carried out the moment that goes to i presetting bit instruction, I
ifor the time of staying i presetting bit.
In such scheme, described historical playback refers to that the historical video information to having stored plays, the historical video of checking monitoring scene.In the present invention, historical playback in two kinds of situation, one is for carrying out playback to the video file of storing by presetting bit, now can play-over the video file of relevant presetting bit, it is not two for carrying out playback to the whole video file by presetting bit storage, now according to presetting bit information, carry out time-division sampling, determine that the video playback time of each presetting bit is
P
i `?=?{?(?R
i?+?(?n?-?1)×T?,?R
i?+?(?n?-?1)×T?+?I
i?)?|?i∈Z
+?,?n∈Z
+?}?(2)
Formula (2) has provided the time period set of each presetting bit video information in the video file that cruises continuously, P
i `be that the video information of i presetting bit is at the time set of cruising continuously in video file, R
iwhile cruising for presetting bit, cruise for the first time to the moment of i presetting bit, T is the cycle of cruising, I
ifor the time of staying i presetting bit, n is n and cruises the cycle.
In such scheme, space-time characterisation when described time Divided Retrieving refers to according to acquiring video information, when the video that cruises shows in real time and stores, or when cruising continuously playback of video files, to video information sampling processing, sampling time collection while being obtained cruising video demonstration in real time and storage by formula (1), the sampling time collection while being obtained cruising continuously playback of video files by formula (2).
(3) beneficial effect.
From technique scheme, can find out, the present invention has following beneficial effect.
1, utilize the present invention, because video information is carried out separate, stored and demonstration according to each presetting bit, can be to the video parallel search of cruising when carrying out video frequency searching, also can on screen, arrange by the spatial character of presetting bit the display window of presetting bit video information simultaneously, so, compare with display packing with the cruise storage of video of traditional presetting bit, this invention can be saved retrieval time, the spatial character of visualize presetting bit, allow video monitoring person have quick cognition to the track of searched targets, greatly improve recall precision.
2, utilize the present invention, owing to can the video file that cruise continuously being carried out to time-division cutting by definite presetting bit, also the operational order that in the time of can cruising according to presetting bit in monitoring in real time, The Cloud Terrace is carried out, when video information coding, monitoring video information is directly stored as to independently video file by presetting bit, the presetting bit video information that shielding and retrieval are irrelevant, for the traditional video surveillance system of building and putting into operation, do not increase hardware cost, so, this invention can be in the situation that not increasing hardware cost, directly serve existing supervisory control system, improve its system effectiveness.
Accompanying drawing explanation
Fig. 1 live video that cruises is play and Stored Procedure figure.
Fig. 2 presetting bit video information shows and Stored Procedure figure.
Fig. 3 video file time-division retrieval flow figure that cruises continuously.
Fig. 4 presetting bit video information space-time characterisation: (a) the monitoring ken of video camera in each presetting bit, (b) by presetting bit space-time characterisation layout presetting bit video display window.
Main element symbol description in figure:
1 is CCTV camera, and 2 is the camera supervised ken of presetting bit 1, and 3 is the camera supervised ken of presetting bit 2,4 for the camera supervised ken of presetting bit 3,2-1 is the monitor video of presetting bit 1, and 3-1 is the monitor video of presetting bit 2, and 4-1 is the monitor video of presetting bit 3.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
The present invention propose based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, its principle is: according to cradle head control instruction, the video information that The Cloud Terrace video camera when the presetting bit is obtained is stored as independent vide file by presetting bit; The video file that cruises is continuously carried out to playback when retrieval, according to presetting bit facilities, carry out dynamic time-division sampling and play continuously the video that cruises, make the video information of each presetting bit show output at window independently.
The present invention is directed to the video frequency searching that cruises of two kinds of situations, a kind of is by presetting bit real-time storage, to become independently video file according to the storage means provided by the invention video that will cruise, and when retrieval, directly for each presetting bit, retrieves; The second situation is that the video file that cruises is continuously carried out to time-division sampling by time-division search method provided by the invention to whole file, and the video information of each presetting bit is shown to output by corresponding window.
For the real-time monitoring of traditional video surveillance system, with the video flowing of the CCTV camera of cradle head control, according to flow chart shown in Fig. 1, process.
If it should be noted that, do not need the video that cruises by presetting bit, show and store, the same with conventional method to the processing of video information, be about to that video storage becomes a video file and in chronological order a window display video information.
For real-time video information, according to presetting bit, process, Fig. 2 has shown separate, stored and has shown the flow process of presetting bit video information.When carrying out presetting bit and cruise, when to The Cloud Terrace sending controling instruction, the presetting bit of controlling according to this instruction, real-time video information by The Cloud Terrace in this presetting bit time of staying section is stored in this video file that belongs to presetting bit, cruising in process in real time, the time period of each presetting bit video information is
P
i?=?{?(?t
i?,?t
i?+?I
i?)?|?i∈Z
+?}?(1)
P in formula (1)
ifor the demonstration i presetting bit video information and section set memory time, t
ifor The Cloud Terrace is carried out the moment that goes to i presetting bit instruction, I
ifor the time of staying i presetting bit.
For the video file that cruises continuously, retrieve, Fig. 3 has shown the video file time-division retrieval flow that cruises continuously.First the time of staying of presetting bit quantity and each presetting bit in this video that cruises is set.According to presetting bit quantity and the presetting bit situation that needs retrieve video information, set up the video display window of respective amount.According to time Divided Retrieving formula (2) whole video information is sampled:
P
i `?=?{?(?R
i?+?n×T?,?R
i?+?n×T?+?I
i?)?|?i∈Z
+?,?n∈Z?}?(2)
Formula (2) has provided the time period set of each presetting bit video information in the video file that cruises continuously, P
i `be that the video information of i presetting bit is at the time set of cruising continuously in video file, R
iwhile cruising for presetting bit, cruise for the first time to the moment of i presetting bit, T is the cycle of cruising, I
ifor the time of staying i presetting bit, n is n and cruises the cycle.In the video file that cruises by P
i `time period set is play continuously, completes the retrieval to i presetting bit video information.
It should be noted that, when carrying out fact monitoring, according to the quantity of the actual environment of Control Room, monitor's quantity and monitored picture, if monitored picture independently shows and can increase monitored picture quantity by presetting bit, may increase the pressure that interior monitor of unit interval watches monitor video, now the video monitoring that cruises can be shown in a monitored picture, and the video that will cruise when storage is stored as independently video file by presetting bit.
When presetting bit video information being shown to output, according to the spatial character of presetting bit, the geography information that the monitoring ken of each presetting bit video camera is shown is embodied in the plane figure of presetting bit window.Fig. 4 has shown presetting bit video information space-time characterisation.Spatial characteristics according to 2,3,4, carries out layout to the window of 2-1,3-1,4-1, in display video information, 2,3,4 spatial character is given to visualize.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention, within the spirit and principles in the present invention all, no matter why not same have in implementation method; any modification of making, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (7)
- One kind based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, it is characterized in that: the method is to the video information that has presetting bit to cruise in video monitoring system, according to presetting bit with cruise interval time, video information can be stored respectively by presetting bit and show output by independent window, also can by presetting bit, show output to the video file that cruises continuously; When carrying out video storage, the video file that creates corresponding number according to presetting bit number is stored, and each video file is only stored the video information of corresponding presetting bit; When showing output, for each presetting bit creates corresponding display window, each window only shows the video of corresponding presetting bit, and according to the space attribute of presetting bit, the diverse location at screen distributes display window corresponding to presetting bit, and the space-time characterisation of guarded region is intuitively embodied; When live play, each presetting bit window only shows real-time video when The Cloud Terrace cruises to this presetting bit, and when The Cloud Terrace cruises in other presetting bit, the window having no truck with shows the last frame image of this presetting bit; When historical playback, can play-over corresponding presetting bit video file, when the video file that cruises continuously of not storing respectively by presetting bit is retrieved, according to presetting bit number and cruise interval time, whole video file is carried out to time-division sampling, each presetting bit video information is carried out to independence and play continuously.
- According to claim 1 based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, it is characterized in that: described video monitoring system refers to according to the video security monitoring system of the standard construction such as " safety and protection system technical specification ", " video security monitoring System Engineering Design standard " and " requirements of video security monitoring systems technology ".
- According to claim 1 based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, it is characterized in that: described presetting bit is cruised and referred to that after the presetting bit that The Cloud Terrace is arranged, The Cloud Terrace cruises according to the time of staying pointwise position of presetting bit order and setting.
- According to claim 1 based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, it is characterized in that: described in the video information that video refers to that video camera obtains when The Cloud Terrace carries out presetting bit and cruises of cruising.
- According to claim 1 based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, it is characterized in that: described live play refers to be play real-time video, the real-time video of checking monitoring scene, in live play, video information is become to the video information file of each presetting bit by presetting bit separate, stored, cruising in process in real time, the time period of each presetting bit video information isP i?=?{?(?t i?,?t i?+?I i?)?|?i∈Z +?}?(1)P in formula (1) ifor the demonstration i presetting bit video information and section set memory time, t ifor The Cloud Terrace is carried out the moment that goes to i presetting bit instruction, I ifor the time of staying i presetting bit.
- According to claim 1 based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, it is characterized in that: described historical playback refers to that the historical video information to having stored plays, the historical video of checking monitoring scene; Historical playback in two kinds of situation, one is for carrying out playback to the video file of storing by presetting bit, now can play-over the video file of relevant presetting bit, it is not two for to carrying out playback by the integral body of the presetting bit storage video file that cruises, now according to presetting bit information, carry out time-division sampling, determine that the video playback time of each presetting bit isP i `?=?{?(?R i?+?n×T?,?R i?+?n×T?+?I i?)?|?i∈Z +?,?n∈Z?}?(2)Formula (2) has provided the time period set of each presetting bit video information in the video file that cruises continuously, P i `be that the video information of i presetting bit is at the time set of cruising continuously in video file, R iwhile cruising for presetting bit, cruise for the first time to the moment of i presetting bit, T is the cycle of cruising, I ifor the time of staying i presetting bit, n is n and cruises the cycle.
- According to claim 1 based on space-time characterisation to there being the monitoring video information time-division search method of cradle head control, it is characterized in that: space-time characterisation when Divided Retrieving refers to according to acquiring video information when described, when the video that cruises shows in real time and stores, or when cruising continuously playback of video files, to video information sampling processing, sampling time collection while being obtained cruising video demonstration in real time and storage by formula (1), the sampling time collection while being obtained cruising continuously playback of video files by formula (2).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106559634A (en) * | 2015-09-30 | 2017-04-05 | 杭州海康威视数字技术股份有限公司 | For the date storage method and device of traffic block port video monitoring |
| CN107480228A (en) * | 2017-08-03 | 2017-12-15 | 深圳市置辰海信科技有限公司 | A kind of monitor video searching method towards hard objectives |
| CN109474697A (en) * | 2018-12-11 | 2019-03-15 | 长春金阳高科技有限责任公司 | A kind of monitoring system audio/video transmission method |
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| CN101576926A (en) * | 2009-06-04 | 2009-11-11 | 浙江大学 | Monitor video searching method based on geographic information system |
| CN102194011A (en) * | 2011-06-17 | 2011-09-21 | 北京互信互通信息技术股份有限公司 | Multi-path video data read-write method |
| JP2012114548A (en) * | 2010-11-22 | 2012-06-14 | Hitachi Kokusai Electric Inc | Video recording apparatus |
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2013
- 2013-09-09 CN CN201310406107.1A patent/CN103517039B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101576926A (en) * | 2009-06-04 | 2009-11-11 | 浙江大学 | Monitor video searching method based on geographic information system |
| JP2012114548A (en) * | 2010-11-22 | 2012-06-14 | Hitachi Kokusai Electric Inc | Video recording apparatus |
| CN102194011A (en) * | 2011-06-17 | 2011-09-21 | 北京互信互通信息技术股份有限公司 | Multi-path video data read-write method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106559634A (en) * | 2015-09-30 | 2017-04-05 | 杭州海康威视数字技术股份有限公司 | For the date storage method and device of traffic block port video monitoring |
| CN106559634B (en) * | 2015-09-30 | 2019-12-03 | 杭州海康威视数字技术股份有限公司 | Date storage method and device for traffic block port video monitoring |
| CN107480228A (en) * | 2017-08-03 | 2017-12-15 | 深圳市置辰海信科技有限公司 | A kind of monitor video searching method towards hard objectives |
| CN109474697A (en) * | 2018-12-11 | 2019-03-15 | 长春金阳高科技有限责任公司 | A kind of monitoring system audio/video transmission method |
| CN109474697B (en) * | 2018-12-11 | 2019-07-26 | 长春金阳高科技有限责任公司 | A kind of monitoring system audio/video transmission method |
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