CN103905789A - Dynamic analysis data preservation, searching and after-analyzing method and device thereof - Google Patents
Dynamic analysis data preservation, searching and after-analyzing method and device thereof Download PDFInfo
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Abstract
The invention relates to the field of security monitoring, and discloses a dynamic analysis data preservation, searching and after-analyzing method and a device thereof. The dynamic analysis data preservation method which is provided by the invention comprises the steps that an input video signal is coded to generate video data; at the same time, dynamic analysis is carried out on the input video signal to generated dynamic analysis data; the video data and the dynamic analysis data are preserved into a video file; the video file is divided into two sections, wherein the first section is used for preserving the video data, and the second section is used for preserving the dynamic analysis data. In a real-time video preservation process, the video data and the dynamic analysis data are recorded. The video file is divided into different sections. The video data and the dynamic analysis data are mixedly recorded in different sections. Monitoring personnel can carry out association positioning, searching and after-analyzing on the video data and the dynamic analysis data in a later period.
Description
Technical field
The present invention relates to protection and monitor field, the technology of preservation, search and the ex-post analysis of particularly dynamic analysis data in digital hard disc video recorder.
Background technology
Existing dynamic analysis technology mainly carries out analyzing and processing by mobile detection detection technique, Analysis of Contrast technology, foreground detection analytical technology, Intellectual Analysis Technology to video image, and exports certain analysis result.Utilize to these analysis results and according to warning messages such as the certain acousto-optic-electrics of user's the output with conditions of deploying troops on garrison duty.But these warning messages or be that real-time trigger alarm equipment is notified monitor staff, or be stored in other memory devices and search for monitor staff afterwards.
If related personnel need to check the video information after certain warning message generation afterwards, must first determine the time point of reporting to the police and occurring by the mode of timi requirement, then the mode of utilizing time period retrieval is carried out the Video Document of MS manual search when searching alarm generation to the video recording data in digital hard disc video recorder (Digital Video Recorder is called for short " DVR ").
Prior art is explained the available Fig. 1 of the application of dynamic analysis data and Fig. 2.
Fig. 1 is the alarm and preservation flow chart of dynamic analysis data in prior art, specifically, comprises the following steps:
In step 101, data are analyzed in the output of DVR dynamic analysis module.
After this enter step 102, judge whether outputting alarm information.
If so, enter step 103; If not, process ends.
In step 103, trigger alarm equipment is informed monitor staff.
After this enter step 104, upload warning information and preserve third party.
After this process ends.
Fig. 2 is dynamic analysis data and video recording associative search flow chart in prior art, specifically, comprises the following steps:
In step 201, monitor staff obtains dynamic analysis data from third party device.
After this enter step 202, monitor staff filters Query Result.
After this enter step 203, monitor staff extracts some dynamic analysis results.
After this enter step 204, in DVR, inquire about Video Document according to the time of analysis result.
After this process ends.
From Fig. 1 and Fig. 2, we can find the deficiency that existing dynamic analysis data are used:
If 1 dynamic analysis data are stored in third party device, can not carry out associatedly with video recording data, in memory device, store respectively warning information, storage video recording data in DVR.Like this, in the time of retrieving afterwards, can only correspondence will be carried out between the two by the artificial mode participating in of monitor staff, automatic location and the dynamic object of retrieval can not be realized.
If 2 dynamic analysis results only trigger alarm equipment, must monitor staff is on duty when alarm can process in time warning information, when only having alarm, can export dynamic analysis warning information.
3, prior art can not realize the ex-post analysis effect to video file, does not rely on the analysis in dynamic analysis storehouse for the video file existing, thereby extracts the warning message of user's region-of-interest.
It should be noted that:
Digital hard disc video recorder (DVR) is a set of computer system of carrying out image stores processor, have to image/voice record a video for a long time, the function of recording, telemonitoring and control.
Dynamic analysis data refer to that DVR processes by certain parser some information that exported user pays close attention to real-time video image, and as mobile detection, a situation arises, license plate recognition result, recognition of face information etc.
Event refers to that user arranges certain triggering rule according to the difference of own focus, and the process that occurs the information that user pays close attention in video recording and triggered warning message is referred to as an event.
Summary of the invention
The object of the present invention is to provide a kind of method and device thereof of preservation, search and ex-post analysis of dynamic analysis data, monitor staff's later stage can be realized video recording data and dynamic analysis data are carried out to coordinate interrelation, search and ex-post analysis.
For solving the problems of the technologies described above, embodiments of the present invention disclose the store method of a kind of dynamic analysis data in digital hard disc video recorder, comprise the following steps:
By the encoding video signal of input, generate video recording data; Meanwhile, the vision signal of input is carried out to dynamic analysis, generate dynamic analysis data;
Video recording data and dynamic analysis data are saved in video file, and wherein, video file is divided into two sections, and the first section is used for preserving video recording data, and the second section is used for preserving dynamic analysis data.
Embodiments of the present invention also disclose the searching method of a kind of video file in digital hard disc video recorder, comprise the following steps:
Input dynamic analysis search condition;
According to the qualified video file list of segment search search time of input, wherein, video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
From the second section of video file, read dynamic analysis data;
Whether the dynamic analysis data that judgement reads are consistent with search condition, if unanimously, extract the time of origin of read dynamic analysis data;
In current video file, read video recording data according to extracted time of origin, and search the offset address of read video recording data in video file;
The result that output finds.
Embodiments of the present invention also disclose the ex-post analysis method of video file in a kind of digital hard disc video recorder, comprise the following steps:
The time period of inputting according to user is searched video file, and video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
Read the video recording data in found video file the first section;
On video recording picture, alert if is set;
According to read video recording data, extract the video time of these video recording data;
From video file the second section, read the dynamic analysis data of video time;
Obtain related content in the dynamic analysis data line output of going forward side by side according to the alert if arranging.
Embodiments of the present invention also disclose the save set of a kind of dynamic analysis data in digital hard disc video recorder, comprising:
Video recording data generating unit, for by the encoding video signal of input, generates video recording data;
Dynamic analysis data generating unit, for the vision signal of input is carried out to dynamic analysis, generates dynamic analysis data;
Storage unit, be saved in video file for the dynamic analysis data that the video recording video recording data that generate of data generating unit and dynamic analysis data generating unit are generated, wherein, video file is divided into two sections, the first section is used for preserving video recording data, and the second section is used for preserving dynamic analysis data.
Embodiments of the present invention also disclose the searcher of a kind of video file in digital hard disc video recorder, comprising:
Input unit, for inputting dynamic analysis search condition;
First searches unit, for the qualified video file list of segment search search time of inputting according to input unit, wherein, video file is divided into two sections, what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
Reading unit, reads dynamic analysis data for the second section from video file;
Judging unit, whether consistent with search condition for judging the dynamic analysis data that reading unit reads, if consistent, extract the time of origin of read dynamic analysis data;
Second searches unit, reads video recording data for the time of origin extracting according to judging unit at current video file, and searches the offset address of read video recording data in video file;
Output unit, searches for exporting second the result that unit finds.
Embodiments of the present invention also disclose the ex-post analysis device of video file in a kind of digital hard disc video recorder, comprising:
Video file is searched unit, and for searching video file according to the time period of user's input, video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
The first reading unit, the video recording data of searching video file the first section that unit finds for reading video file;
Alert if setting unit, for arranging alert if on the video recording picture reading at the first reading unit;
Video time extraction unit, for the video recording data that read according to the first reading unit, extracts the video time of these video recording data;
The second reading unit, reads the dynamic analysis data of the video time that video time extraction unit extracts for search video file the second section that unit finds from video file;
Result output unit, for obtaining the related content of the dynamic analysis data that the second reading unit the reads line output of going forward side by side according to the set alert if of alert if setting unit.
Compared with prior art, the main distinction and effect thereof are embodiment of the present invention:
In real-time recording preservation process, video recording data are not only recorded, and dynamic analysis data are recorded, and video file is divided into different sections, in different sections, video recording data and dynamic analysis data are carried out to hybrid recording, monitor staff's later stage can be realized video recording data and dynamic analysis data are carried out to coordinate interrelation, search and ex-post analysis.
User has not only recorded video recording data in real-time recording preservation process, and has recorded dynamic analysis data,, mates by the dynamic analysis data in video file, fast associative search be positioned to corresponding video recording data afterwards.
User has not only recorded video recording data in real-time recording preservation process, and dynamic analysis data are recorded, like this, even if user does not arrange focus information in monitoring in real time, still can carry out ex-post analysis by the video recording data to having recorded, obtain the relevant information that user pays close attention to, further extract the warning message that user pays close attention to afterwards.
Further, in preservation process, not only record the result of dynamic analysis, and recorded warning message, like this, in search procedure afterwards, not only can search for warning message, and can be to the dynamic analysis data analysis of whole image.
Accompanying drawing explanation
Fig. 1 is the alarm and preservation flow chart of dynamic analysis data in prior art;
Fig. 2 is dynamic analysis data and video recording associative search flow chart in prior art;
Fig. 3 is the schematic flow sheet of the store method of a kind of dynamic analysis data in digital hard disc video recorder in first embodiment of the invention;
Fig. 4 is dynamic analysis data and the general illustration of video recording data mixing record with retrieval in technical solution of the present invention;
The structure chart of video file in Fig. 5 technical solution of the present invention;
Fig. 6 is the schematic flow sheet of the searching method of a kind of video file in digital hard disc video recorder in second embodiment of the invention;
Fig. 7 is the schematic flow sheet of the ex-post analysis method of video file in a kind of digital hard disc video recorder in third embodiment of the invention;
Fig. 8 is the structural representation of the save set of a kind of dynamic analysis data in digital hard disc video recorder in four embodiment of the invention;
Fig. 9 is the structural representation of the searcher of a kind of video file in digital hard disc video recorder in fifth embodiment of the invention;
Figure 10 is the structural representation of the ex-post analysis device of video file in a kind of digital hard disc video recorder in sixth embodiment of the invention.
Embodiment
In the following description, in order to make reader understand the application better, many ins and outs have been proposed.But, persons of ordinary skill in the art may appreciate that even without these ins and outs and the many variations based on following execution mode and modification, also can realize the each claim of the application technical scheme required for protection.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
First embodiment of the invention relates to the store method of a kind of dynamic analysis data in digital hard disc video recorder.Fig. 3 is the schematic flow sheet of the store method of these dynamic analysis data in digital hard disc video recorder.
The store method of these dynamic analysis data in digital hard disc video recorder comprises the following steps:
By the encoding video signal of input, generate video recording data.Meanwhile, the vision signal of input is carried out to dynamic analysis, generate dynamic analysis data.
The type of preferably, dynamic analysis data comprises: mobile detection data, human face analysis data, license plate recognition result and intellectual analysis result.
Video recording data and dynamic analysis data are saved in video file, and wherein, video file is divided into two sections, and the first section is used for preserving video recording data, and the second section is used for preserving dynamic analysis data.
Preferably, in preservation process, the preservation form of dynamic analysis data is: the type of dynamic analysis data, the time of origin of dynamic analysis data, the scene of dynamic analysis data and the information of dynamic analysis data, the information of wherein dynamic analysis data refers to the correlated results that records in detail dynamic analysis.
After record a video data and dynamic analysis data are saved in to the step in video file, further comprising the steps of:
Current deploying troops on garrison duty under condition, if there is warning message, trigger alarm equipment, and warning message is saved in the second section of video file.
In preservation process, not only record the result of dynamic analysis, and recorded warning message, like this, in search procedure afterwards, not only can search for warning message, and can be to the dynamic analysis data analysis of whole image.
In real-time recording preservation process, video recording data are not only recorded, and dynamic analysis data are recorded, and video file is divided into different sections, in different sections, video recording data and dynamic analysis data are carried out to hybrid recording, monitor staff's later stage can be realized video recording data and dynamic analysis data are carried out to coordinate interrelation, search and ex-post analysis.
By the analysis to dynamic analysis market demand mode in prior art, the video recording existing in conjunction with prior art and the shortcoming of the asynchronous record of dynamic analysis data, the present invention proposes the technical scheme of record a video data and dynamic analysis data being carried out hybrid recording in video file, can effectively solve hybrid recording and the coordinate interrelation problem of dynamic analysis data and video recording data.Monitor staff's later stage can be searched for and back up video recording data take the analysis result of concern as condition.The overall schematic of technical solution of the present invention can describe with Fig. 4.Every frame in equipment running process is analyzed, if there is dynamic analysis result, the warning message under dynamic analysis result and the current condition of deploying troops on garrison duty is all preserved.
Can find by Fig. 4, realize in advance the association search of dynamic analysis data and video recording, the hybrid recording of dynamic analysis data and video recording is key problem in technology point of the present invention.And the present invention is by video file being divided into different sections, each section is preserved different data messages and is realized.Wherein the structure of video file as shown in Figure 5.
As shown in Figure 5, the video file in this programme is divided into i.e. the first section and the second section of two sections.The first section is used for recording video recording data, comprises: mobile detection data, recognition of face data, car plate analysis result and intellectual analysis data and the second section is used for recording dynamic analysis data.The dynamic analysis data that record in the second section are the correlated results in the first section video time section.
The record of wherein dynamic analysis data can carry out record with following form:
Data type: car plate, mobile detection, intelligent result or human face analysis result.
Time: mainly refer to the time that analysis result occurs.
Place: mainly refer to the place that analysis result occurs.
Data message: the correlated results of record analysis in detail.
Specifically, as shown in Figure 3, the store method of these dynamic analysis data in digital hard disc video recorder mainly comprises the following steps:
In step 301, video camera input video.
Front-end camera incoming video signal is generally to meet video broadcast signal by CVBS() transmission line input.
After this enter step 302, DVR gathers vision signal by the analog/digital acquisition chip of input.
After this enter step 303 and 305 simultaneously.
In step 303, to encoding video signal.
After this enter step 304, output video recording data, be mainly according to certain coded format as: H.264, the video data that compresses of the compressed format such as MPEG4 or MJPEG.
After this enter step 309.
In step 305, vision signal is carried out to dynamic analysis, identification is analyzed in the behavior of mainly user being paid close attention to.
After this enter step 306, output dynamic analysis data.
After this enter step 307, according to record format encapsulation dynamic analysis data.
After this enter step 308, judge whether to meet alert if, as the time period condition etc. of deploying troops on garrison duty.。
If so, enter step 310; If not, enter step 309.
In step 310, trigger alarm equipment.
After this enter step 309, respectively video recording data are write to the first section, dynamic analysis data and warning message are write to the second section.
By video recording data and dynamic analysis data respectively according to the Divide File relation record in Fig. 5 to video file.
After this process ends.
The above-mentioned main hybrid recording to video recording data and dynamic analysis data is set forth, and the final purpose of hybrid recording is to realize retrieving and ex-post analysis with dynamic analysis data afterwards, conveniently searches afterwards and be positioned to fast corresponding video recording.
Because preservation process has not only recorded warning message, and recording the result of dynamic analysis, thus in search procedure afterwards, not only can search for warning message, and can be to the dynamic analysis data analysis of whole image.
Second embodiment of the invention relates to the searching method of a kind of video file in digital hard disc video recorder.Fig. 6 is the schematic flow sheet of the searching method of this video file in digital hard disc video recorder.
The searching method of this video file in digital hard disc video recorder comprises the following steps:
Input dynamic analysis search condition.
Preferably, dynamic analysis search condition comprises: any one in the information of the time of origin of dynamic analysis data, the scene of dynamic analysis data and dynamic analysis data or several combinations.
According to the qualified video file list of segment search search time of input, wherein, video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data.
From the second section of video file, read dynamic analysis data.
Whether the dynamic analysis data that judgement reads are consistent with search condition, if unanimously, extract the time of origin of read dynamic analysis data.
In current video file, read video recording data according to extracted time of origin, and search the offset address of read video recording data in video file.
The result that output finds.
User has not only recorded video recording data in real-time recording preservation process, and has recorded dynamic analysis data,, mates by the dynamic analysis data in video file, fast associative search be positioned to corresponding video recording data afterwards.
Specifically, as shown in Figure 6, the searching method of this video file in digital hard disc video recorder mainly comprises the following steps:
In step 601, input dynamic analysis search condition.
The combination condition of one or several in the information that is input as dynamic analysis data, time or the place of afterwards searching, can be some license plate numbers, a certain intelligent rules, as cross-line, enter region, or the warning message that produces of the mobile detection region that pre-sets of a certain passage video and the time period that needs retrieval thereof.
After this enter step 602, search qualified video file list according to section search time of input, mainly judge according to the beginning end time of each file.
After this entering step 603, is to read dynamic analysis data the conserved domain of dynamic analysis data from the second section of video file.
After this enter step 604, whether the dynamic analysis data that judgement reads are consistent with search condition.
If so, enter step 605; If not, enter step 609.
In step 605, extract the time T ime1 that dynamic analysis data occur.
After this enter step 606, read the first section of current video file.
After this enter step 607, be positioned to the Time1 time according to the markers in code stream, record corresponding video recording of Time1 time side-play amount hereof.
Read video recording data at current video file according to the time of Time1, and search the cheap address of the video recording matching with the Time1 time in video file according to the code stream markers in video recording data.
After this enter step 608, output Search Results.
After this process ends.
In step 609, judge whether the data in video file the second section have read complete.
If run through, switch the judgement of file; If do not run through, continue to read.
If so, enter step 611; If not, enter and turn back to step 603.
In step 611, judge whether current file is last file.
Judging whether file in video file list has read judges completely, if read completely, shows the information of search less than user's needs, directly exits; If do not read completely, switch to next file.
If so, process ends; If not, enter step 610.
In step 610, switch to next file.
After this again turn back to step 603.
Above-mentionedly mainly the search of additional information is set forth, mainly the warning message occurring and place on record is carried out to query search.
Present embodiment is the method execution mode corresponding with the first execution mode, present embodiment can with the enforcement of working in coordination of the first execution mode.The correlation technique details of mentioning in the first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the first execution mode.
Third embodiment of the invention relates to the ex-post analysis method of video file in a kind of digital hard disc video recorder.Fig. 7 is the schematic flow sheet of the ex-post analysis method of video file in this digital hard disc video recorder.
In this digital hard disc video recorder, the ex-post analysis method of video file comprises the following steps:
The time period of inputting according to user is searched video file, and video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data.
Read the video recording data in found video file the first section.
On video recording picture, alert if is set.
According to read video recording data, extract the video time of these video recording data.
From video file the second section, read the dynamic analysis data of video time.
Obtain related content in the dynamic analysis data line output of going forward side by side according to the alert if arranging.
User has not only recorded video recording data in real-time recording preservation process, and dynamic analysis data are recorded, like this, even if user does not arrange focus information in monitoring in real time, still can carry out ex-post analysis by the video recording data to having recorded, obtain the relevant information that user pays close attention to, further extract the warning message that user pays close attention to afterwards.
Another application of dynamic analysis data is the ex-post analysis effect to video recording data.Even if user does not arrange alert if in real-time recording, do not record Realtime Alerts information, user still can obtain the dynamic analysis result in video file by the way of ex-post analysis.The result of the video file output dynamic analysis of generally specifying according to user, wherein analysis process as shown in Figure 7.
Specifically, as shown in Figure 7, in this digital hard disc video recorder, the ex-post analysis method of video file mainly comprises the following steps:
In step 701, user inputs the video time of concern.
Mainly to obtain the time period of user's concern and the event type of concern.
After this enter step 702, retrieve the video file list in range of search according to the time.
After this enter step 703, read the video recording data in video file the first section.
After this enter step 704, on video recording picture, alert if is set.
After this enter step 705, extract the video time Time2 of each frame according to video recording markers.
After this enter step 706, from the second section of video file, read the dynamic analysis data that betide time T ime2.
If mobile detection data, a situation arises can to extract the mobile detection of each minimum block in image.If license board information can be extracted appearance situation and the license board information of car plate in present frame picture, if intellectual analysis result can get intelligent target information and rule and regular triggering situation thereof.
After this enter step 707, obtain related content in the dynamic analysis data line output of going forward side by side according to the alert if arranging.
The result of being concerned about according to user is once filtered the result in step 706, and as user may only be concerned about the mobile detection in some regions in image or the situation that car plate occurs, the condition arranging according to user is filtered.
After this enter step 708, judge whether presents is analyzed complete.
Judge whether present frame is the last frame data of presents.If not, need to continue reading out data, if it is need further to judge whether presents is last file, if not last file, needs to switch next file.
If so, enter step 709; If not, again turn back to step 703.
In step 709, determine whether last file.
If so, process ends; If not, enter step 710.
In step 710, switch to next file.
After this again get back to step 703.
The above-mentioned defect for existing dynamic analysis technology, can not association search, and the feature of secondary analysis has proposed the solution based on video recording data and the recording method of dynamic analysis data mixing afterwards.Not only can search for the dynamic analysis event of trigger alarm based on this scheme, can also carry out secondary analysis to video file, further propose the event of paying close attention to afterwards.
Present embodiment is the method execution mode corresponding with the first and second execution modes, present embodiment can with the enforcement of working in coordination of the first and second execution modes.The correlation technique details of mentioning in the first and second execution modes is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the first and second execution modes.
Each method execution mode of the present invention all can be realized in modes such as software, hardware, firmwares.No matter the present invention realizes with software, hardware or firmware mode, instruction code can be stored in the memory of computer-accessible of any type (for example permanent or revisable, volatibility or non-volatile, solid-state or non-solid-state, fixing or removable medium etc.).Equally, memory can be for example programmable logic array (Programmable Array Logic, be called for short " PAL "), random access memory (Random Access Memory, be called for short " RAM "), programmable read only memory (Programmable Read Only Memory, be called for short " PROM "), read-only memory (Read-Only Memory, be called for short " ROM "), Electrically Erasable Read Only Memory (Electrically Erasable Programmable ROM, be called for short " EEPROM "), disk, CD, digital versatile disc (Digital Versatile Disc, be called for short " DVD ") etc.
Four embodiment of the invention relates to the save set of a kind of dynamic analysis data in digital hard disc video recorder.Fig. 8 is the structural representation of the save set of these dynamic analysis data in digital hard disc video recorder.
Specifically, as shown in Figure 8, the save set of these dynamic analysis data in digital hard disc video recorder comprises:
Video recording data generating unit, for by the encoding video signal of input, generates video recording data.
Dynamic analysis data generating unit, for the vision signal of input is carried out to dynamic analysis, generates dynamic analysis data.
Storage unit, be saved in video file for the dynamic analysis data that the video recording video recording data that generate of data generating unit and dynamic analysis data generating unit are generated, wherein, video file is divided into two sections, the first section is used for preserving video recording data, and the second section is used for preserving dynamic analysis data.
Specifically:
Also comprise:
Alarm unit, under the current condition of deploying troops on garrison duty, if there is warning message, trigger alarm equipment, and warning message is saved in the second section of video file.
The first execution mode is the method execution mode corresponding with present embodiment, present embodiment can with the enforcement of working in coordination of the first execution mode.The correlation technique details of mentioning in the first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the first execution mode.
Fifth embodiment of the invention relates to the searcher of a kind of video file in digital hard disc video recorder.Fig. 9 is the structural representation of the searcher of this video file in digital hard disc video recorder.
Specifically, as shown in Figure 9, the searcher of this video file in digital hard disc video recorder comprises:
Input unit, for inputting dynamic analysis search condition.
First searches unit, for the qualified video file list of segment search search time of inputting according to input unit, wherein, video file is divided into two sections, what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data.
Reading unit, reads dynamic analysis data for the second section from video file.
Judging unit, whether consistent with search condition for judging the dynamic analysis data that read, if unanimously, extract the time of origin of read dynamic analysis data.
Second searches unit, reads video recording data for the time of origin extracting according to judging unit at current video file, and searches the offset address of read video recording data in video file.
Output unit, searches for exporting second the result that unit finds.
The second execution mode is the method execution mode corresponding with present embodiment, present embodiment can with the enforcement of working in coordination of the second execution mode.The correlation technique details of mentioning in the second execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the second execution mode.
Sixth embodiment of the invention relates to the ex-post analysis device of video file in a kind of digital hard disc video recorder.Figure 10 is the structural representation of the ex-post analysis device of video file in this digital hard disc video recorder.
Specifically, as shown in figure 10, in this digital hard disc video recorder, the ex-post analysis device of video file comprises:
Video file is searched unit, and for searching video file according to the time period of user's input, video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data.
The first reading unit, the video recording data of searching video file the first section that unit finds for reading video file.
Alert if setting unit, for arranging alert if on the video recording picture reading at the first reading unit;
Video time extraction unit, for the video recording data that read according to the first reading unit, extracts the video time of these video recording data.
The second reading unit, reads the dynamic analysis data of the video time that video time extraction unit extracts for search video file the second section that unit finds from video file.
Result output unit, for obtaining the related content of the dynamic analysis data that the second reading unit the reads line output of going forward side by side according to the set alert if of alert if setting unit.
The 3rd execution mode is the method execution mode corresponding with present embodiment, present embodiment can with the enforcement of working in coordination of the 3rd execution mode.The correlation technique details of mentioning in the 3rd execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the 3rd execution mode.
It should be noted that, each unit of mentioning in the each device embodiments of the present invention is all logical block, physically, a logical block can be a physical location, also can be a part for a physical location, can also realize with the combination of multiple physical locations, the physics realization mode of these logical blocks itself is not most important, and the combination of the function that these logical blocks realize is only the key that solves technical problem proposed by the invention.In addition, for outstanding innovation part of the present invention, the above-mentioned each device embodiments of the present invention is not introduced the unit not too close with solving technical problem relation proposed by the invention, and this does not show that said apparatus execution mode does not exist other unit.
It should be noted that, in the claim and specification of this patent, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element that " comprises " and limit by statement, and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Although pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and described, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (11)
1. the store method of dynamic analysis data in digital hard disc video recorder, is characterized in that, comprises the following steps:
By the encoding video signal of input, generate video recording data; Meanwhile, the vision signal of input is carried out to dynamic analysis, generate dynamic analysis data;
Described video recording data and dynamic analysis data are saved in video file, and wherein, described video file is divided into two sections, and the first section is used for preserving video recording data, and the second section is used for preserving dynamic analysis data.
2. the store method of dynamic analysis data according to claim 1 in digital hard disc video recorder, is characterized in that, after described video recording data and dynamic analysis data are saved in to the step in video file, further comprising the steps of:
Current deploying troops on garrison duty under condition, if there is warning message, trigger alarm equipment, and warning message is saved in the second section of video file.
3. the store method of dynamic analysis data according to claim 2 in digital hard disc video recorder, is characterized in that, the type of described dynamic analysis data comprises: mobile detection data, human face analysis data, license plate recognition result and intellectual analysis result.
4. the store method of dynamic analysis data according to claim 3 in digital hard disc video recorder, it is characterized in that, described video recording data and dynamic analysis data are saved in the step in video file, the preservation form of dynamic analysis data is: the type of dynamic analysis data, the time of origin of dynamic analysis data, the scene of dynamic analysis data and the information of dynamic analysis data.
5. the searching method of video file in digital hard disc video recorder, is characterized in that, comprises the following steps:
Input dynamic analysis search condition;
According to the qualified video file list of segment search search time of input, wherein, video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
From the second section of video file, read dynamic analysis data;
Whether the dynamic analysis data that judgement reads are consistent with search condition, if unanimously, extract the time of origin of read dynamic analysis data;
In current video file, read video recording data according to extracted time of origin, and search the offset address of read video recording data in video file;
The result that output finds.
6. the searching method of video file according to claim 5 in digital hard disc video recorder, it is characterized in that, described dynamic analysis search condition comprises: any one in the information of the time of origin of dynamic analysis data, the scene of dynamic analysis data and dynamic analysis data or several combinations.
7. an ex-post analysis method for video file in digital hard disc video recorder, is characterized in that, comprises the following steps:
The time period of inputting according to user is searched video file, and described video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
Read the video recording data in found video file the first section;
On video recording picture, alert if is set;
According to read video recording data, extract the video time of these video recording data;
From described video file the second section, read the dynamic analysis data of described video time;
Obtain related content in the dynamic analysis data line output of going forward side by side according to the alert if arranging.
8. the save set of dynamic analysis data in digital hard disc video recorder, is characterized in that, comprising:
Video recording data generating unit, for by the encoding video signal of input, generates video recording data;
Dynamic analysis data generating unit, for the vision signal of input is carried out to dynamic analysis, generates dynamic analysis data;
Storage unit, be saved in video file for the dynamic analysis data that the video recording video recording data that generate of data generating unit and dynamic analysis data generating unit are generated, wherein, described video file is divided into two sections, the first section is used for preserving video recording data, and the second section is used for preserving dynamic analysis data.
9. the save set of dynamic analysis data according to claim 8 in digital hard disc video recorder, is characterized in that, also comprises:
Alarm unit, under the current condition of deploying troops on garrison duty, if there is warning message, trigger alarm equipment, and warning message is saved in the second section of video file.
10. the searcher of video file in digital hard disc video recorder, is characterized in that, comprising:
Input unit, for inputting dynamic analysis search condition;
First searches unit, for the qualified video file list of segment search search time of inputting according to input unit, wherein, video file is divided into two sections, what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
Reading unit, reads dynamic analysis data for the second section from video file;
Judging unit, whether consistent with search condition for judging the dynamic analysis data that reading unit reads, if consistent, extract the time of origin of read dynamic analysis data;
Second searches unit, reads video recording data for the time of origin extracting according to judging unit at current video file, and searches the offset address of read video recording data in video file;
Output unit, searches for exporting second the result that unit finds.
In 11. 1 kinds of digital hard disc video recorders, the ex-post analysis device of video file, is characterized in that, comprising:
Video file is searched unit, and for searching video file according to the time period of user's input, described video file is divided into two sections, and what in the first section, preserve is video recording data, and what in the second section, preserve is the dynamic analysis data to video recording data;
The first reading unit, the video recording data of searching video file the first section that unit finds for reading video file;
Alert if setting unit, for arranging alert if on the video recording picture reading at the first reading unit;
Video time extraction unit, for the video recording data that read according to the first reading unit, extracts the video time of these video recording data;
The second reading unit, reads the dynamic analysis data of the video time that video time extraction unit extracts for search video file the second section that unit finds from video file;
Result output unit, for obtaining the related content of the dynamic analysis data that the second reading unit the reads line output of going forward side by side according to the set alert if of alert if setting unit.
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| CN104284163A (en) * | 2014-10-29 | 2015-01-14 | 广州中国科学院软件应用技术研究所 | Device and system for video analysis |
| CN108345427A (en) * | 2017-01-25 | 2018-07-31 | 杭州海康威视数字技术股份有限公司 | A kind of hard disc data storage method and device |
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| CN104284162A (en) * | 2014-10-29 | 2015-01-14 | 广州中国科学院软件应用技术研究所 | Video retrieval method and system |
| CN104284163A (en) * | 2014-10-29 | 2015-01-14 | 广州中国科学院软件应用技术研究所 | Device and system for video analysis |
| CN108345427A (en) * | 2017-01-25 | 2018-07-31 | 杭州海康威视数字技术股份有限公司 | A kind of hard disc data storage method and device |
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