CN103702053B - Video storage and search method and system as well as monitoring system - Google Patents
Video storage and search method and system as well as monitoring system Download PDFInfo
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- CN103702053B CN103702053B CN201410020999.6A CN201410020999A CN103702053B CN 103702053 B CN103702053 B CN 103702053B CN 201410020999 A CN201410020999 A CN 201410020999A CN 103702053 B CN103702053 B CN 103702053B
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Abstract
The invention discloses a video storage and search method and system as well as a monitoring system. The video storage and search method and system as well as the monitoring system have the beneficial effects that the start time, the end time and the alarm information are recorded during recording and serve as video file names, meanwhile, index files containing some index information of the video files are generated, data of video frames is recorded in the recording process, and metadata files are generated after completing recording and are endowed with the same names as the video files but different suffixes from the video files; when in searching, the files meeting the conditions are searched in the index files according to the search conditions, the metadata files corresponding to the file names meeting the conditions are further opened, the video frame start time in the search time is searched according to the search time, and then corresponding video frames are obtained from the video files according to the video frame start time.
Description
Technical field
The present invention relates to a kind of video recording storage and search method and system, monitoring system.
Background technology
When camera cluster networking is connected with central server by certain platform protocol, inevitably run into network-like
The not good situation of condition, now cannot upload to central server, it is necessary to locally carry out in video camera by the video of the video camera
Storage, treats that network condition takes a turn for the better, and central server retrieves locally stored video, selects video content interested to upload.In addition,
User can set and store some videos interested, conduct interviews afterwards, such as warning video, video of certain time etc., this
When need that video is stored in video camera, subsequent user can obtain corresponding video recording according to search condition.
IP video cameras need front end to store, by regarding for the period in suspension or network congestion when storage of reporting to the police
Frequency is preserved, and typically using SD card and TF cards as storage medium, some are recorded a video to treat network recovery or user's active obtaining
When, video camera uploads these video recordings according to the instruction of central server or client.When the video for preserving is more or retrieval
When condition precision is higher, the video recording for meeting search condition is searched according to general retrieval technique, it is time-consuming longer, take more
Cpu resource, inefficiency can cause video camera live video stream interim card.Such as, user will search for one, in the time period 10：
00：00-10：00：30 videos of lower 30 seconds, and video file is the time period 9：55：00-10：05：00 lower 10 minutes regards
Frequently, then how to give user this 30 seconds video, it is to be difficult to accomplish according to common retrieval, substantial amounts of CPU can be expended, obtains
The precision for arriving is not also high.
The content of the invention
To solve the above problems, one aspect of the present invention is：
A kind of video recording storage and search method, including recording and storing step and searching step are provided；The storing step
Specifically include：S101, recording video file simultaneously store video file after recording terminates, and record the index information of video file,
The index information includes recording starting time and end time；S102, the text for generating at the end of recording the video file
Part name, file name includes the time started and end time；S103, store video file video code flow when, generate
Meta data file, wherein, meta data file is identical from the filename of video file and file name suffix is different, meta data file note
Record has the frame time started of each frame video recording frame of video file and side-play amount；S104, according to the index information of video file set up
Index file, the index per bar of index file accordingly records the index information of a video file；The searching step is concrete
Including：S201, opening index file, the search condition and search time for obtaining input generates query statement, search condition bag
One or several in containing index information；S202, according to meet in query statement search index file search condition index believe
Breath, it is determined that filename corresponding with the index information for meeting condition；S203, opening metadata text corresponding with the filename
Part；The frame time started of the search time is met in S204, retrieval meta data file, it is determined that corresponding with the frame time started
Side-play amount；S205, opening video file corresponding with the filename, according to side-play amount video recording is obtained from video file
Frame.
Another technical solution used in the present invention is：
A kind of video recording storage and retrieval system is provided, including recording is stored in unit, video retrieval unit and memory element,
Recording is stored in unit to include recording module, logging modle, the first generation module, the second generation module, sets up module；Record module
For record video file and after recording terminates store video file to memory element；Logging modle is used to record video file
Index information, the index information includes recording starting time and end time, the index information correspondence one indexed per bar
Video file；First generation module is used to generate the filename of the correspondence video file, when file name includes the beginning
Between and the end time；Second generation module is used for when video file is stored, and generates meta data file, wherein, meta data file
Identical from the filename of video file and file name suffix is different, meta data file record has each frame video recording frame of video file
Frame time started and side-play amount；Module is set up for setting up index file according to the index information of video file, index file
Per bar, index accordingly records the index information of a video file；Video retrieval unit includes the first acquisition module, the first inspection
Rope module, meta data file open module, the second retrieval module, video recording frame acquisition module；First acquisition module is used to open rope
Quotation part, the search condition and search time for obtaining input generates query statement, and search condition includes in index information
Or several；First retrieval module is used for according to the index information that search condition is met in query statement search index file, really
The filename of fixed video file corresponding with the index information for meeting condition；Meta data file open module be used for open with it is described
The meta data file corresponding to filename that first retrieval module determines；Second retrieval module is used to retrieve meta data file fullness in the epigastrium and abdomen
The frame time started of the foot search time, it is determined that side-play amount corresponding with the frame time started；Video recording frame acquisition module is used
In the video file is opened, video recording frame is obtained from video file according to side-play amount.
Another technical solution used in the present invention is：
A kind of monitoring system is provided, including video recording storage and retrieval system and with video recording storage and retrieval system communication link
The central server for connecing, the video recording storage and retrieval system as described in claim 5-8 any one, the central server
For sending the search condition and search time, the video recording storage and retrieval system to the video recording storage and retrieval system
It is additionally operable to acquisition video recording frame be sent to central server.
The beneficial effects of the present invention is：The index text of some index informations comprising video file is set up in the video recording stage
Part and the meta data file file for record video recording frame data, record time started, end time and report when recording
Alarming information and using three information as video file name, while generating the rope of some index informations comprising video file
Quotation part, the file of condition is met when line retrieval is entered according to lookup in search condition indexed file, is further opened and is met
The corresponding meta data file of filename of condition, searches the video recording frame time started within the searched time, so according to search time
Go video file to obtain corresponding video recording frame accordingly afterwards, greatly accelerate retrieving, improve retrieval precision, help quick positioning
The frame of video recording.
Description of the drawings
Fig. 1 is a kind of execution flow process of the recording and storing step of video recording storage and search method in an embodiment of the present invention
Figure；
Fig. 2 is the video recording frame structure schematic diagram of video file；
Fig. 3 is a kind of execution flow chart of the searching step of video recording storage and search method in an embodiment of the present invention；
Fig. 4 is a kind of system block diagram of video recording storage and retrieval system in an embodiment of the present invention；
Fig. 5 is that the functional block diagram for being stored in unit is recorded in Fig. 4；
Fig. 6 is the functional block diagram of video retrieval unit in Fig. 4.
Main element symbol description
Video recording storage and retrieval system 100
Recording is stored in unit 10
Video retrieval unit 20
Memory element 30
Warning detecting unit 40
Specific embodiment
To describe technology contents of the invention, structural features in detail, purpose and effect being realized, below in conjunction with embodiment
And coordinate accompanying drawing to be explained in detail.
One kind video recording storage and search method include recording and storing step and searching step.Fig. 1 is referred to, is the present invention
The execution flow chart of the recording and storing step of a kind of video recording storage and search method in one embodiment.The storing step is concrete
Including：
Step S101, recording video file simultaneously store video file after recording terminates, and record the index letter of video file
Breath, the index information includes recording starting time and end time.
Index information records the filename of the video file, also record the time started, the end time, grid bearing, event,
File size, resolution, frame per second, type of coding.
Step S102, the filename for generating at the end of recording the video file, when file name includes the beginning
Between and the end time；
For example, the file name of each video recording is as follows：
" XXXXXXXX-YYYYYYYY-AA.vid ", wherein,
XXXXXXXX is the beginning UTC time of video recording,
YYYYYYYY is the end UTC time of video recording,
In the present embodiment, record alarm signal step is also included in step S101, is also recorded in the index information
There is type of alarm corresponding with alarm signal.The filename can also include UDW section, and step S102 also includes：
When there is type of alarm in index information that type of alarm is related to User Defined field, for example, AA is type of alarm, with
UDW section is associated, and Vid is suffix.Type of alarm includes：Fire alarm, smog alarm, temperature alarming, movement are detectd
Survey, intrusion detection warning etc..
Step S103, store video file video code flow when, generate meta data file, wherein, meta data file with
The filename of video file is identical and file name suffix is different, and meta data file record has each frame of video file to record a video the frame of frame
Time started and side-play amount.
For example, the filename of the above-mentioned video file of correspondence：XXXXXXXX-YYYYYYYY-AA.vid
Generate the filename of metadata：XXXXXXXX-YYYYYYYY-AA.idx
Fig. 2 is referred to, is the video recording frame structure schematic diagram of video file, the video of a time period video recording is stored in order
During code stream, because the length of each frame recorded a video is not fixed, in order to reach the precision that video recording is retrieved by frame, in storage video
While stream, need to store a meta data file.
For example, table one is referred to, is the type of organization table of meta data file in an example, meta data file have recorded video recording
The side-play amount in units of byte of file each frame video recording frame and time started of microsecond is accurate to, reserved 8byte is used for
Other events, such as intellectual analysis, special marking are recorded, the size of the metadata of each frame is all 32 fixed bytes.
In the present embodiment, when also type of alarm is recorded in the index information, meta data file is also included to be used for
The special marking of record type of alarm, step S103 also includes：When there is type of alarm in index information, by special mark
Note is associated with the frame time started for receiving the alarm signal moment.More than one may be included in video recording longer for a period of time
Individual alert event, and if search condition only include an event, then needs position which section is belonging to the inspection in video recording
Rope event, now needs the presence of the special marking in metadata, for distinguishing different alert events.
The type of organization table of meta data file in table one, an example
| UTC time | The frame time started | Side-play amount | Other events |
| UTC time | A microseconds | 0 | Intellectual analysis |
| UTC time | B microseconds | First frame shifting amount | Intellectual analysis |
| UTC time | C microseconds | Second frame shifting amount | Special marking |
| UTC time | …… | …… | …… |
| UTC time | N microseconds | Nth frame side-play amount | —— |
| UTC time | …… | …… | …… |
Step S104, index file is set up according to the index information of video file, the index per bar of index file is accordingly
The index information of one video file of record.
In order to rapidly retrieve video file according to various conditions, one index file of establishment is needed to record all local records
The index information of picture, refers to table 2, is the index information of an index in an example in concordance list.The index indexed per bar
Information correspondence one video file, record the filename of the video file, also record the time started, the end time, grid bearing,
Event, file size, resolution, frame per second, type of coding, wherein, reserved certain space is indexed per bar to be used to upgrade, and per bar
The length of index is all fixed.
The index information of an index in table two, an example in concordance list
Fig. 3 is referred to, is a kind of execution of the searching step of video recording storage and search method in an embodiment of the present invention
Flow chart, i.e., a kind of execution flow chart of video retrieval method.The searching step is specifically included：
Step S201, opening index file, the search condition and search time for obtaining input generates query statement, retrieval
Condition includes or several in index information.In the present embodiment, when the event package in index information contains type of alarm
When, search condition includes event, and event package contains one or several of type of alarm.
Step S202, according to the index information that search condition is met in query statement search index file, it is determined that with satisfaction
The corresponding filename of index information of condition.
Step S203, opening meta data file corresponding with the filename；It is every that meta data file have recorded video file
The side-play amount in units of byte of one frame video recording frame and time started of microsecond is accurate to, reserved 8byte is used to record it
His event.
The frame time started of the search time is met in step S204, retrieval meta data file, it is determined that opening with the frame
Time beginning corresponding side-play amount.
In the present embodiment, when also type of alarm is recorded in the index information, using type of alarm as other things
Part, also comprising being used to record the special marking of type of alarm, step S103 also includes meta data file：When in index information
When there is type of alarm, special marking is associated with the frame time started for receiving the alarm signal moment.
Step S204 is specially：The search time is met in retrieval meta data file, and simultaneously special marking is warning
The frame time started of type；It is determined that side-play amount corresponding with the frame time started.
Step S205, opening video file corresponding with the filename, according to side-play amount record is obtained from video file
As frame.
Refer to Fig. 4, be in an embodiment of the present invention it is a kind of video recording storage and retrieval system system block diagram, described one
Plant video recording storage and search method is applied in the system.The video recording storage and retrieval system 100 including recording be stored in unit 10,
Video retrieval unit 20 and memory element 30.Fig. 5 is referred to, is that the functional block diagram for being stored in unit is recorded in Fig. 4.The record
System is stored in unit 10 to be included recording module, logging modle, the first generation module, the second generation module, sets up module.
Recording module is used to record video file and video file is stored after recording terminates to memory element 30.
Logging modle is used to record the index information of video file, and the index information includes recording starting time and end
Time.Index information one video file of correspondence indexed per bar, records the filename of the video file, when also record starts
Between, the end time, grid bearing, event, file size, resolution, frame per second, type of coding, wherein, index per bar reserved certain
Space be used for upgrade, and per bar index length be all fixed.
First generation module is used to generate the filename of the correspondence video file, and file name includes the time started
And the end time.
Second generation module be used for store video file when, generate meta data file, wherein, meta data file with video recording
The filename of file is identical and file name suffix is different, and the frame that meta data file record has each frame video recording frame of video file starts
Time and side-play amount.
In the present embodiment, the video recording storage and retrieval system 100 also includes warning detecting unit 40, for detecting
Recording is sent it to during to alarm signal and is stored in unit 10.Alarm signal is also included in the index information of the logging modle record
Number corresponding type of alarm.
Further, the filename also includes UDW section, and first generation module is additionally operable to when index letter
It is when there is type of alarm in breath, type of alarm is related to User Defined field.
The warning detecting unit includes：Fire alarm ginseng surveys unit, smoke detection unit, temperature detecting unit, mobile detection
Unit, intrusion detecting unit, correspondingly, the type of alarm includes：Fire alarm, smog alarm, temperature alarming, movement are detectd
Survey, intrusion detection warning etc..
When also type of alarm is recorded in the index information, meta data file also includes the spy for recording type of alarm
Different labelling, the second generation module is used for when there is type of alarm in index information, by special marking with receive alarm signal
The frame time started at moment is associated.
Module is set up for setting up index file according to the index information of video file, indexing per bar for index file is corresponding
The index information of ground one video file of record.
Fig. 6 is referred to, is the functional block diagram of video retrieval unit in Fig. 4.The video retrieval unit 20 is obtained including first
Delivery block, the first retrieval module, meta data file open module, the second retrieval module, video recording frame acquisition module.
First acquisition module is used to open index file, and the search condition and search time for obtaining input generates inquiry and refer to
Order, wherein, the index per bar of index file accordingly records the index information of a video file.Search condition includes index letter
One or several in breath.In the present embodiment, when the event package when containing type of alarm in index information, search condition is included
Event, event package contains one or several of type of alarm.
First retrieval module is used for according to the index information that search condition is met in query statement search index file, it is determined that
The filename of video file corresponding with the index information for meeting condition.
Meta data file opens module to be used to open the first number corresponding to the filename determined with the described first retrieval module
According to file, wherein, meta data file is identical from the filename of corresponding video file and file name suffix is different, meta data file
Record has the frame time started of each frame video recording frame of video file and side-play amount.
Second retrieval module is used to retrieve the frame time started that the search time is met in meta data file, it is determined that and institute
State frame time started corresponding side-play amount.
Video recording frame acquisition module is used to open the video file, and video recording frame is obtained from video file according to side-play amount.
In the present embodiment, when also type of alarm is recorded in the index information, using type of alarm as other things
Part, also comprising being used to record the special marking of type of alarm, second signal generating unit is additionally operable to when index letter meta data file
When there is type of alarm in breath, special marking is associated with the frame time started for receiving the alarm signal moment.
Specifically for meeting the search time in retrieval meta data file, simultaneously special marking is report to second retrieval module
The frame time started of alert type, it is determined that side-play amount corresponding with the frame time started.
Based on above-mentioned video recording storage and search method and system schema, the present invention also provides a kind of monitoring system, the monitoring
The center that system includes described video recording storage and retrieval system 100 and communicates to connect with video recording storage and retrieval system 100
Server, central server is used to send the search condition and search time, institute to the video recording storage and retrieval system 100
State video recording storage and retrieval system 100 to be additionally operable to acquisition video recording frame be sent to central server.Wherein, it is described video recording storage and
Searching system 100 is integrated video camera.The central server is computer, Smartphone, panel computer etc..
The video recording storage of the present invention and search method and system and monitoring system, the solution of the present invention is by record
Time started, end time and warning message are recorded when processed and using three information as video file name, while generating bag
Some index informations containing video file are in interior index file, and the data of video recording frame recorded in recording process and in record
Generate meta data file after the completion of system, and give that meta data file is named from video file identical but suffix is different.When carry out
The file of condition is met during retrieval according to lookup in search condition indexed file, the filename pair for meeting condition is further opened
The meta data file answered, according to search time the video recording frame time started within the searched time is searched, and video recording text is then removed accordingly
Part obtains corresponding video recording frame.By present invention achieves be accurate to the retrieving of frame, solving existing retrieval technique and looking into
Look for exist during the video recording for meeting search condition it is time-consuming longer, take more cpu resource, inefficiency, cause video camera reality
When video flowing interim card problem.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of video recording is stored and search method, it is characterised in that including recording and storing step and searching step；
The storing step is specifically included：
S101, recording video file simultaneously store video file after recording terminates, and record the index information of video file, the rope
Fuse breath includes recording starting time and end time；
S102, the filename for generating at the end of recording the video file, file name includes the time started and end
Time；
S103, when the video code flow of video file is stored, generate meta data file, wherein, meta data file and video file
Filename it is identical and file name suffix is different, meta data file record has each frame of video file to record a video frame time started of frame
And side-play amount；
S104, index file is set up according to the index information of video file, the index per bar of index file accordingly records one
The index information of video file；
The searching step is specifically included：
S201, opening index file, the search condition and search time for obtaining input generates query statement, and search condition is included
One or several in index information；
S202, according to the index information that search condition is met in query statement search index file, it is determined that with the rope for meeting condition
Fuse ceases corresponding filename；
S203, opening meta data file corresponding with the filename；
Meet frame time started of the search time in S204, retrieval meta data file, it is determined that with the frame time started pair
The side-play amount answered；
S205, opening video file corresponding with the filename, according to side-play amount video recording frame is obtained from video file；
In step S101 also include record alarm signal step, recording events in the index information, the event be with
The corresponding type of alarm of alarm signal；
The filename also includes UDW section, and step S102 also includes：When there is type of alarm in index information
When, type of alarm is related to User Defined field；
Also comprising being used to record the special marking of type of alarm, step S103 also includes meta data file：Work as index information
In when there is type of alarm, special marking is associated with the frame time started for receiving the alarm signal moment；
Step S204 is specially：The search time is met in retrieval meta data file, and simultaneously special marking is type of alarm
The frame time started；It is determined that side-play amount corresponding with the frame time started.
2. a kind of video recording according to claim 1 is stored and search method, it is characterised in that index information record video recording text
The filename of part, time started, end time, grid bearing, event, file size, resolution, frame per second, type of coding.
3. a kind of video recording according to claim 2 is stored and search method, it is characterised in that type of alarm includes fire alarm report
Police, smog alarm, temperature alarming, mobile detection, intrusion detection are reported to the police.
4. a kind of video recording storage and retrieval system, it is characterised in that be stored in unit, video retrieval unit and storage including recording
Unit, recording is stored in unit to include recording module, logging modle, the first generation module, the second generation module, sets up module；
Recording module is used to record video file and video file is stored after recording terminates to memory element；
Logging modle is used to record the index information of video file, and the index information includes recording starting time with the end of
Between, index information one video file of correspondence indexed per bar；
First generation module is used to generate the filename of the correspondence video file, and file name includes the time started and knot
The beam time；
Second generation module is used for when video file is stored, and generates meta data file, wherein, meta data file and video file
Filename it is identical and file name suffix is different, meta data file record has each frame of video file to record a video frame time started of frame
And side-play amount；
Module is set up for setting up index file according to the index information of video file, indexing per bar for index file is accordingly remembered
The index information of one video file of record；
Video retrieval unit includes that the first acquisition module, the first retrieval module, meta data file open module, the second retrieval mould
Block, video recording frame acquisition module；
First acquisition module is used to open index file, and the search condition and search time for obtaining input generates query statement,
Search condition includes or several in index information；
First retrieval module is used for according to the index information that search condition is met in query statement search index file, it is determined that with it is full
The filename of the corresponding video file of index information of sufficient condition；
Meta data file opens module to be used to open the metadata text corresponding to the filename determined with the described first retrieval module
Part；
Second retrieval module be used for retrieve the frame time started that the search time is met in meta data file, it is determined that with the frame
Time started corresponding side-play amount；
Video recording frame acquisition module is used to open the video file, and video recording frame is obtained from video file according to side-play amount；
Also include warning detecting unit, send it to during alarm signal recording and be stored in unit, the record mould for detecting
Event is included in the index information of block record, the event is the corresponding type of alarm of alarm signal；
The filename also includes UDW section, and first generation module is additionally operable to work as has warning class in index information
It is during type, type of alarm is related to User Defined field；
When also type of alarm is recorded in the index information, meta data file also includes the special mark for recording type of alarm
Note, second generation module is additionally operable to when there is type of alarm in index information, by special marking with receive alarm signal
The frame time started at number moment is associated；
Specifically for meeting the search time in retrieval meta data file, simultaneously special marking is warning class to second retrieval module
The frame time started of type, it is determined that side-play amount corresponding with the frame time started.
5. a kind of video recording storage and retrieval system according to claim 4, it is characterised in that characterized in that, index letter
The breath record filename of video file, the time started, the end time, grid bearing, event, file size, resolution, frame per second,
Type of coding.
6. a kind of video recording storage and retrieval system according to claim 5, it is characterised in that
The warning detecting unit includes that fire alarm ginseng surveys unit, a kind of video recording storage and retrieval system unit of smoke detection, temperature
Probe unit, mobile detection unit, intrusion detecting unit, correspondingly, the type of alarm include fire alarm, smog alarm,
Temperature alarming, mobile detection, intrusion detection are reported to the police.
7. a kind of monitoring system, it is characterised in that including video recording storage and retrieval system and with video recording storage and retrieval system
The central server of communication connection, the video recording storage and retrieval system as described in claim 4-6 any one, the center
Server is used to send the search condition and search time, the video recording storage and inspection to the video recording storage and retrieval system
Cable system is additionally operable to acquisition video recording frame be sent to central server.
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| CN109977268B (en) * | 2019-02-26 | 2022-10-14 | 南京邮电大学 | Video information retrieval method |
| CN111666256B (en) * | 2020-05-27 | 2024-03-22 | 南京通用电器有限公司 | Video file disk management method and device based on index file |
| CN112380165A (en) * | 2020-11-09 | 2021-02-19 | 北京电子工程总体研究所 | Method for searching recorded data file |
| CN113255438B (en) * | 2021-04-12 | 2023-03-31 | 深圳市顺盟科技有限公司 | Structured video file marking method, system, host and storage medium |
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| CN101692706B (en) * | 2009-07-30 | 2011-08-17 | 杭州联图科技有限公司 | Intelligent storage equipment for security monitoring |
| CN101984663B (en) * | 2010-10-18 | 2014-03-12 | 中兴通讯股份有限公司 | Play control method and system of monitoring audio/video |
| CN102325244B (en) * | 2011-08-26 | 2014-02-19 | 杭州海康威视数字技术股份有限公司 | Method for rapidly positioning videos by time, video storage control device and positioning device |
| CN102521309B (en) * | 2011-11-24 | 2015-02-11 | 中国船舶重工集团公司第七○九研究所 | Storage organization and search method of digital video videotaping files |
| CN103248853B (en) * | 2012-02-10 | 2017-06-13 | 华为技术有限公司 | Realize the method, apparatus and system of video retrieval |
| CN102750962B (en) * | 2012-06-11 | 2016-04-06 | 杭州海康威视数字技术股份有限公司 | A kind of back method of video file and device |
| CN103077200B (en) * | 2012-12-27 | 2016-12-28 | 深圳市赛为智能股份有限公司 | A kind of audio/video index storage method and device |
| CN103260010B (en) * | 2013-04-23 | 2017-02-08 | 四川天翼网络服务有限公司 | Intelligent skynet rapid video retrieval system |
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