CN105847752B - Information encoding-decoding method, equipment and video monitoring system - Google Patents
Information encoding-decoding method, equipment and video monitoring system Download PDFInfo
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- CN105847752B CN105847752B CN201610255643.XA CN201610255643A CN105847752B CN 105847752 B CN105847752 B CN 105847752B CN 201610255643 A CN201610255643 A CN 201610255643A CN 105847752 B CN105847752 B CN 105847752B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
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- Closed-Circuit Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Embodiment of the present invention discloses information encoding-decoding method, equipment and video monitoring system.The information coding method includes: that characteristic information relevant to monitor video data is converted into text information；Structural description is carried out with extensible markup language format to text information；And it is encoded to structural description as a kind of monitoring of monitor video extension information and monitor video data in monitor video code stream together.Characteristic information data relevant to monitor video data coding with providing a kind of high scalability and is easily extracted the scheme of characteristic information by embodiment according to the present invention in video data and from stream of video data.
Description
Technical field
Embodiments of the present invention are related to the technical field of video monitoring, compile characteristic information in particular to a kind of
Code information coding method in video and equipment, a kind of information decoding method that characteristic information is extracted from monitor video code stream
With equipment and a kind of video monitoring system.
Background technique
With becoming increasingly popular for video monitoring, the development in particular with technology of Internet of things and Video Supervision Technique is combined,
Video code flow applied to monitoring trade, which can carry, much extends information, such as Internet of Things feature with the associated monitoring of video data
Information data, for example, such as time, place, alarm event information, sensor information.In existing video monitoring system, monitoring
Video camera generates characteristic information data, by network transmission, can extract characteristic information data at video monitoring platform end and carries out in fact
When show or check.In system design process, characteristic information data is generated to by video monitoring platform from front end and is extracted, intermediate
It needs by multiple interaction.
Above-mentioned data exchange process often by video monitoring apparatus supplier and user by way of interaction protocol into
Row agreement carries out this mode since the characteristic information type that monitoring extension information covers is increasing to characteristic information
The scale of processing also becomes huge, and one new characteristic information data of every increase is required in information extraction and using link
Data interaction agreement is renegotiated, exploitation and the difficulty safeguarded also increasingly increase, while bringing hidden danger to the stability of system；
And if not negotiating interaction protocol, these characteristic informations are not available then.In view of the above problems, expectation improve such as with view
Frequency is supervised according to the monitoring extension information data of the video monitoring system of relevant characteristic information data in monitor camera and video
Control the interaction between platform.
Summary of the invention
The technical problem to be solved is that improve characteristic information data relevant to video data for embodiments of the present invention
Coding and decoding.
According to the first aspect of the invention, a kind of information coding method is provided.This method may include: by with monitor video
The relevant characteristic information of data is converted into text information；Structuring is carried out with extensible markup language format to the text information
Description；And information and the monitor video data one are extended using the structural description as a kind of monitoring of monitor video
It rises and is encoded in monitor video code stream.
Further, characteristic information relevant to monitor video data can be the particular event occurred in monitor video.
This method can also include: to carry out intellectual analysis to the monitor video data；And it extracts and occurs in the monitor video
The particular event.Characteristic information relevant to monitor video data is converted into text information specifically: to the monitoring
The particular event occurred in video data is described in the form of text.
Further, characteristic information relevant to monitor video data can be the reading or needle of internet of things sensors
The information that the video data is artificially inserted into.
According to the second aspect of the invention, a kind of information encoding apparatus is provided.The equipment may include: conversion equipment, use
In characteristic information relevant to monitor video data is converted into text information；Structural description device, for the text
Information carries out structural description with extensible markup language format；And code device, for using the structural description as
A kind of monitoring extension information of monitor video and the monitor video data are encoded to together in monitor video code stream.
Further, characteristic information relevant to monitor video data can be the particular event occurred in video.This sets
It is standby further include: analytical equipment, for carrying out intellectual analysis to the monitor video data；And extraction element, for extracting
The particular event occurred in the monitor video.Characteristic information relevant to monitor video data is converted into text information
It can be with specifically: the particular event occurred in the monitor video data is described in the form of text.
Further, characteristic information relevant to video data can be for the reading of internet of things sensors or for institute
State the information that video data is artificially inserted into.
According to the third aspect of the invention we, a kind of information decoding method is provided.This method may include: from received monitoring
It is parsed in video code flow and information is extended with the monitoring that extensible markup language format carries out structural description；And from the knot
The characteristic information in the form of text information relevant to monitor video data is extracted in the monitoring extension information of structureization description.
According to the fourth aspect of the invention, a kind of information decoding apparatus is provided.The equipment may include: resolver, use
Believed in being parsed from received monitor video code stream with the monitoring extension that extensible markup language format carries out structural description
Breath；And extraction element, it is related to monitor video data for being extracted from the monitoring of structural description extension information
The characteristic information in the form of text information.
According to the fifth aspect of the invention, a kind of video monitoring system is provided.The system may include: monitor camera,
Acquisition monitor video data are configured as, characteristic information relevant to monitor video are converted into text information, to the text
Information carries out structural description with extensible markup language format, and using the structural description as one kind of monitor video
Monitoring extension information and the monitor video data are encoded to together in monitor video code stream；And video monitoring platform, matched
It is set to and receives the monitor video code stream that the monitor camera is sent, parsed from received monitor video code stream with can
The monitoring that extending mark language format carries out structural description extends information, and extends and believe from the monitoring of the structural description
The characteristic information in the form of text information relevant to monitor video data is extracted in breath.
Further, video monitoring platform can be additionally configured to: by way of character match to extracted with
The characteristic information of text information form is handled；And/or by semanteme from the feature in the form of text information extracted
Data are extracted in information.
Embodiment according to the present invention, with providing a kind of high scalability and easily will be with monitor video data
Relevant characteristic information data encodes the scheme in video data.When extracting characteristic information, first parsing obtains the prison in code stream
Control extension information, further extracts extensible markup data therein, and then obtain text description information therein.To make
Obtain the concrete meaning that characteristic information can be no longer paid close attention in information exchange link.
Detailed description of the invention
The method that Fig. 1 shows embodiment according to the present invention can be in the structural schematic diagram for the system wherein applied；
Fig. 2 shows the flow charts of information coding method according to an embodiment of the present invention；
Fig. 3 shows the structural schematic diagram of monitor video code stream according to an embodiment of the present invention；
Fig. 4 shows the flow chart of information decoding method according to an embodiment of the present invention；
Fig. 5 shows the block diagram of information encoding apparatus according to an embodiment of the present invention；And
Fig. 6 shows the block diagram of information decoding apparatus according to an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
With reference to Fig. 1, it illustrates the methods of embodiment according to the present invention can be in the structure for the system 100 wherein applied
Figure.System 100 includes monitor camera 101 and video monitoring platform 102.Monitor camera 101 generates monitor video and obtains
Characteristic information relevant to video is obtained, and monitor video data and characteristic information data are uploaded to video monitoring platform together
102.Video monitoring platform 102 can be handled received data, therefrom extract characteristic information number relevant to video
Further processing is executed according to and/or to it.
Characteristic information relevant to video can be the various internet of things sensors acquisition connecting with monitor camera 101
Data, 101 pairs of the monitor camera videos monitored carry out data or the data being artificially inserted into caused by intellectual analysis.
With reference to Fig. 2, it illustrates the flow charts of information coding method 200 according to an embodiment of the present invention.
In step S210, characteristic information relevant to monitor video data is converted into text information.
In step S220, structural description is carried out with extensible markup language (XML) format to text information.
In step S230, information and the monitor video are extended using structural description as a kind of monitoring of monitor video
Data are encoded to together in monitor video code stream.
The information coding method of embodiment according to the present invention, characteristic information data at the monitor camera of front end can be through
Processing is crossed, selection is expressed in a manner of text information, and text information is then carried out structuring with extensible markup language
Encapsulation, and by the encapsulation of the structured mark-up language with certain grammatical tagging in video code flow, be sent to by network
Video monitoring platform.
In one embodiment, characteristic information relevant to monitor video data is the reading of various internet of things sensors
Number, including temporal information, location information, temperature information, humidity information, alarm event information, working sensor condition information etc..
Internet of things sensors can communicate with monitor camera.For example, video monitoring camera can be with the biography near acquisition camera
Sensor information, is described in a manner of text information, such as " Current Temperatures: DEG C ", it is also an option that by other letters such as time, place
Breath carries out verbal description.
In one embodiment, method 200 can also include: step S202 before step S210, utilize intelligent view
Frequency analysis algorithm carries out intellectual analysis to video data；And step S204, extract the particular event occurred in video.With
The relevant characteristic information of video data can be the description of the textual form to the particular event occurred in video.
Intelligent video analysis algorithm can be for detect the objects such as personage or vehicle appear in algorithm in monitored picture,
For the algorithm of recognition of face, the algorithm of crowd massing or other any algorithms appropriate for identification.
Video monitoring camera can may be selected to carry out intelligence point to video image while acquiring audio, video data
Analysis, and the particular event of generation is described in the form of text.Such text information for example can be " generation area invasion
Alarm, the coordinate in region are X ", " face occur, its coordinate is Y " etc..
In one embodiment, characteristic information relevant to monitor video data, which can be, artificially inserts in video data
The information entered.Other related informations such as " aside: A ", " subtitle: B " can be inserted.
Text information can be encoded at video monitoring camera end, with specific syntax T with structured mark-up language
(XML) it is packaged, is included in video code flow.For example, can arrange the text envelope of the relevant characteristic information of video data
Breath is inserted at frame head, centre or the ending of a frame video image, and with the guidance of specific leading symbol.Video monitoring
Platform can be from the text description information for extracting the leading symbol and guiding in video code flow.
In one embodiment, video code flow may include positioned at the structural description information of stem and positioned at thereafter
Video data.Optionally, structural description information can also be located at after video data in video code flow.
As an example, Fig. 3 shows the structural representation of monitor video code stream according to an embodiment of the present invention
Figure.The mode of embodiment can be adapted for national standard " safety precaution monitoring digital video-audio encoding and decoding skill according to the present invention
Art standard " SVAC standard (GB/T 25724-2010).As shown in figure 3, a SVAC code stream may include video data NAL (net
Network level of abstraction；Network Abstraction Layer) unit and positioned at thereafter monitoring extend information NAL unit.Monitoring is expanded
Exhibition information NAL unit may include the monitoring extension letter that structural description is carried out with extensible markup language format (XML)
Cease block.Monitoring extension block of information is the XML description to certain video monitoring associated address information.
Further, the structural description information of XML format can also describe the text information of at least one characteristic information
The position of appearing in video after the decoding.
With reference to Fig. 4, it illustrates the flow charts of information decoding method 400 according to an embodiment of the present invention.
In step S410, is parsed from received monitor video code stream and structuring is carried out with extensible markup language format
The monitoring of description extends information.
In step S420, extracted from the monitoring of structural description extension information relevant to monitor video data with text
The characteristic information of this message form.
The information decoding method of embodiment according to the present invention can be from connecing when video monitoring platform extracts characteristic information
It is parsed in the acquisition code stream of receipts and information is extended with the monitoring that extensible markup language format carries out structural description, further mentioned
Take the characteristic information of text information form therein.Text information can be directly used for real-time display or other processing.
At video monitoring platform, the available video codes being packaged with specific syntax T with structured mark-up language
Flow data obtains the text information in video by corresponding decoding.Optionally, text information can also be obtained in video
The information such as position of appearing.To which text information can be superimposed upon in corresponding real-time video picture and show by monitor supervision platform.
It in one embodiment, can be by way of character match to being extracted at video monitoring platform
Text information is handled.For example, monitor supervision platform quickly can handle the video received by character match, spy is found
Determine the corresponding one or more video-frequency bands of text information；Alternatively, language can be passed through at monitor supervision platform or monitor supervision platform itself
Data are extracted in justice retrieval from text information, for carrying out corresponding application and development.
With reference to Fig. 5, it illustrates the block diagrams of information encoding apparatus 500 according to an embodiment of the present invention.Information is compiled
Decoding apparatus 500 may include: conversion equipment 510, for characteristic information relevant to monitor video data to be converted into text envelope
Breath；Structural description device 520, for text information to be carried out structural description with extensible markup language format；And it compiles
Code device 530, for being compiled structural description as a kind of monitoring of monitor video extension information and monitor video data together
Code is into monitor video code stream.
With reference to Fig. 6, it illustrates the block diagrams of information decoding apparatus 600 according to an embodiment of the present invention.Information is compiled
Decoding apparatus 600 may include: resolver 610, for parsing from received monitor video code stream with extensible markup language
Say that the monitoring for the structural description that format carries out extends information；And extraction element 620, for the prison from the structural description
The characteristic information in the form of text information relevant to monitor video data is extracted in control extension information.
It should be appreciated that each module recorded in equipment 500 and each step phase in the method 200 with reference to Fig. 2 description
It is corresponding, and each module recorded in equipment 600 is corresponding with each step in the method 400 with reference to Fig. 4 description.By
This, operation and feature above with respect to Fig. 2 description are equally applicable to equipment 500 and module wherein included, and above with respect to
The operation of Fig. 4 description and feature are equally applicable to equipment 600 and module wherein included, and details are not described herein.
According to various embodiments of the present invention, at video monitoring end, can to the relevant characteristic information of video data into
It composes a piece of writing this description, and text is described to carry out structural description and coding with structured mark-up language, video monitoring platform is only
Structural description need to be extracted from video code flow according to agreement grammer, and therefrom parse the characteristic information of text description.
To which the scalability of characteristic information transmission can be greatlyd improve compared with the coding method of existing video feature information.?
Existing monitoring coding side does not use text to describe the processing of characteristic information, the mode of data encoding is only taken to carry out, on the one hand
It is not possible that the characteristic information that exhaustion is all, another aspect scalability are bad.In addition, being encoded in existing monitoring system in front end
With the brought flexibility of text description in data interactive session all without utilizing structured form.It is closed in information exchange link
The heart information content can bring the rising of system complexity with the increase of characteristic information.Embodiment according to the present invention,
Information exchange link can be indifferent to the information content, but be carried out in a manner of transparent transmission, so that it is strong to provide a kind of scalability
And easy characteristic information coding and transmission method.
According to various embodiments of the present invention, in video monitoring platform, can also to the characteristic information that text describes into
Row quick-searching can also extract simultaneously secondary use by the semantic data that carry out in text.In addition, embodiment party according to the present invention
The characteristic information encoding scheme of formula can coexist with traditional data interactive mode.In this way, in many applications, compared to traditional
Data interactive mode, the coding and interactive mode of the characteristic information text description based on structured mark-up language can form one
Important supplement.
It should be appreciated that information coding method and equipment that embodiment of the present invention is proposed may be implemented as software, hard
The combination of part or software and software.Hardware can be by being designed to perform the conversion integrated circuit (ASIC) of above-mentioned function, counting
It is word signal processor (DSP), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, micro-
Processor, other electronic units or combinations thereof are realized.Software can be realized by executing the module of above-mentioned function.Software can quilt
It is stored in a storage unit and is run by processor.As storage unit or processor, can be used well known to those skilled in the art
Various units.
Give specification of the invention for the purpose for showing and describing, but its be not intended to exhaustion or
Person is limited to the invention of disclosed form.It may occur to persons skilled in the art that many modification and variation.The present invention is not being departed from
Under the premise of spirit, all modifications and replacement made are fallen in the scope of the present invention that appended claims define.
Claims (6)
1. a kind of information coding method characterized by comprising
Characteristic information relevant to monitor video data is converted into text information, the characteristic information is to occur in monitor video
Particular event；
Structural description is carried out with extensible markup language format to the text information；And
The structural description is extended into information as a kind of monitoring of monitor video and the monitor video data encode together
Into monitor video code stream；
Wherein, described characteristic information relevant to monitor video data is converted into text information to include:
Intellectual analysis is carried out to the monitor video data；Extract the particular event occurred in the monitor video；It is right
The particular event occurred in the monitor video data is described in the form of text.
2. a kind of information encoding apparatus characterized by comprising
Conversion equipment, for characteristic information relevant to monitor video data to be converted into text information, the characteristic information is
The particular event occurred in monitor video；
Structural description device, for carrying out structural description to the text information with extensible markup language format；And
Code device, for extending information and monitoring view for the structural description as a kind of monitoring of monitor video
Frequency evidence is encoded to together in monitor video code stream；
Analytical equipment, for carrying out intellectual analysis to the monitor video data；And
Extraction element, for extracting the particular event occurred in the monitor video,
Wherein, described that characteristic information relevant to monitor video data is converted into text information specifically: the monitoring is regarded
The particular event that frequency occurs in is described in the form of text.
3. a kind of information decoding method characterized by comprising
The monitoring extension that structural description is carried out with extensible markup language format is parsed from received monitor video code stream
Information；And
It is extracted from the monitoring of structural description extension information relevant to monitor video data in the form of text information
Characteristic information, the characteristic information is the particular event that occurs in monitor video.
4. a kind of information decoding apparatus characterized by comprising
Resolver is retouched for parsing from received monitor video code stream with the progress structuring of extensible markup language format
The monitoring extension information stated；And
Extraction element, for from the monitoring of the structural description extension information in extract it is relevant to monitor video data with
The characteristic information of text information form, the characteristic information are the particular event occurred in monitor video.
5. a kind of video monitoring system characterized by comprising
Monitor camera is configured as acquisition monitor video data, characteristic information relevant to monitor video is converted into text
Information carries out structural description to the text information with extensible markup language format, and the structural description is made
A kind of monitoring for monitor video extends information and the monitor video data are encoded to together in monitor video code stream；And
Video monitoring platform is configured as receiving the monitor video code stream that the monitor camera is sent, from received prison
It is parsed in control video code flow and information is extended with the monitoring that extensible markup language format carries out structural description, and from described
The characteristic information in the form of text information relevant to monitor video data is extracted in the monitoring extension information of structural description,
The characteristic information is the particular event occurred in monitor video.
6. system according to claim 5, which is characterized in that the video monitoring platform is also configured to
The characteristic information in the form of text information extracted is handled by way of character match, the feature letter
Breath is the particular event occurred in monitor video；And/or
Data are extracted from the characteristic information in the form of text information extracted by semanteme.
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| CN107025292A (en) * | 2017-04-14 | 2017-08-08 | 国网江苏省电力公司无锡供电公司 | The description method of video and heterogeneous sensor in towards transformer station |
| CN107291850A (en) * | 2017-06-06 | 2017-10-24 | 贵阳朗玛信息技术股份有限公司 | Video data structure method and device |
| CN108347427B (en) * | 2017-12-29 | 2021-04-02 | 中兴通讯股份有限公司 | Video data transmission and processing method and device, terminal and server |
| CN110366005A (en) * | 2019-07-23 | 2019-10-22 | 浙江大华技术股份有限公司 | Sending method and device, the display methods and device of analog composite video signal |
| CN113596567A (en) * | 2021-06-10 | 2021-11-02 | 保升(中国)科技实业有限公司 | Video networking technology |
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| DE102005053148B4 (en) * | 2005-11-04 | 2022-12-22 | Robert Bosch Gmbh | Procedures for handling content information |
| CN201409194Y (en) * | 2009-05-19 | 2010-02-17 | 广东响石数码科技有限公司 | Video network monitoring system |
| CN101778260B (en) * | 2009-12-29 | 2012-01-04 | 公安部第三研究所 | Method and system for monitoring and managing videos on basis of structured description |
| CN103716584A (en) * | 2013-11-30 | 2014-04-09 | 南京大学 | Context sensing-based intelligent mobile terminal field monitoring method |
| CN104602119A (en) * | 2014-05-26 | 2015-05-06 | 腾讯科技（北京）有限公司 | Video transcoding and decoding method and device and related information release control method and system |
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