CN107027007A - A kind of video sharing method and system - Google Patents
A kind of video sharing method and system Download PDFInfo
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- CN107027007A CN107027007A CN201710237250.0A CN201710237250A CN107027007A CN 107027007 A CN107027007 A CN 107027007A CN 201710237250 A CN201710237250 A CN 201710237250A CN 107027007 A CN107027007 A CN 107027007A
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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
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
This application provides a kind of video sharing method and system, it is related to field of video monitoring.The video sharing method that the present invention is provided, it has obtained the first packet and the second packet by first being pre-processed video data in video sending end, and video data have adjusted to the destination server being sent to after resolution ratio in server zone；And destination server is if necessary to more accurately data, it can then be made requests on to video sending end, after request passes through, video sending end can be by the key frame images in the first packet, and/or the second target dynamic figure in packet is sent to destination server, and then destination server is set to get more accurate data；The destination server in server zone, so as to complete passing on for video data, improves security again targetedly by data distributing to video receiver afterwards.
Description
Technical field
The present invention relates to field of video monitoring, in particular to a kind of video sharing method and system.
Background technology
Video monitoring is the important component of safety and protection system, English Cameras and Surveillance.Pass
The monitoring system of system includes front-end camera, transmission cable, video monitoring platform.Video camera can be divided into network digital camera and
Analog video camera, can as head end video picture signal collection.It is a kind of stronger integrated system of prevention ability.Video is supervised
Control is enriched with its directly perceived, accurate, timely and information content and is widely used in many occasions.In recent years, with computer, network
And image procossing, transmission technology are developed rapidly, Video Supervision Technique there has also been significant progress.
The main function of video monitoring is that the real-time pictures of target area are transferred in monitor terminal, but real work to send out
Existing, the mode of tradition monitoring image transmission is not reasonable.
The content of the invention
It is an object of the invention to provide video sharing method, to improve the reasonability of video monitoring.
In a first aspect, the embodiments of the invention provide a kind of video sharing method, video sharing system is acted on, it is described to regard
Frequency shared system includes multiple video sending ends, multiple video receivers and server zone；The server zone includes safe level
First order server, second level server, third level server, fourth stage server and the level V service not improved successively
Device, first order server, second level server, third level server and fourth stage server with it is corresponding one or more
Video sending end communication connection, and first order server, second level server, third level server and fourth stage server with
Corresponding one or more video reception end communications connection, and second level server respectively with first order server and the third level
Server communication connection；Third level server is connected with second level server and the communication of fourth stage server respectively, fourth stage clothes
Business device is connected with third level server and the communication of level V server respectively；The access password of the server of different stage and access
Mode is differed；The video sharing method includes：Including：
Video sending end obtains the video data obtained captured by camera；
It is logical that video sending end sets up the first escape way, the second escape way and transmission of video respectively with destination server
Road, the address of the destination server is pre-stored in the video sending end, and the destination server is the first order clothes
Level of security is corresponding with the video sending end in business device, second level server, third level server, fourth stage server
One server；
Video sending end determines multiple key frame images in the video data；
Video sending end extracts all key frame images, and is packed into the first packet, and by institute
The first packet is stated to be stored in locally；
Video sending end extracts target video section using the key frame images as reference from the video data, described
The time span of target video section is less than default time threshold, and, each key frame images are respectively positioned on the target and regarded
In frequency range；
Target video section is made as target dynamic figure by video sending end, and the target dynamic figure is packed into
Second packet, and second packet is stored in locally；
Video sending end detects the actual network speed value of current video transmission channel；
Video sending end calculates target resolution according to actual network speed value and the size of the video data；
The video data is adjusted to the size of target resolution by video sending end；
Video sending end sends the video data after the adjustment by transmission of video passage to destination server, and will
The time ciphertext generated temporarily is sent to destination server, and the time ciphertext is to sending using the encryption key made an appointment
What moment value was obtained after being encrypted, the delivery time value is the real time that video sending end sends the video data；
Destination server, if the video data does not meet default requirement, makes after the video data is received
The time ciphertext is decrypted with the decruption key made an appointment, to obtain the delivery time value；
Destination server searches the object code corresponding to the delivery time value, the password in the cipher table prestored
The code corresponding to the different periods is recorded in table；
Destination server is sent to video sending end by the first escape way and obtains request, and described obtain in request carries
There is the destination server to receive the temporal information and request content of the video data；
Destination server sends the object code by the second escape way to video sending end；
Video sending end judges whether the interval at the first moment and the second moment is less than default numerical value, first moment
At the time of being that video sending end receives the acquisition request, second moment is that video sending end receives the target generation
At the time of code；
If the interval at the first moment and the second moment is less than default numerical value, video sending end is according to the temporal information
The request permissions for obtaining request is determined with the object code；
Video sending end determines transmission content, the transmission content bag according to the request permissions and the request content
Include first packet and second packet；
If the transmission content only has the first packet, video sending end closes each in first packet
Key two field picture is split as the first component and the second component, and all the first components are packed into the first subdata bag, will be complete
The component of portion second is packed into the second subdata bag；And by the first escape way by the first subdata bag to destination server
Send, sent the second subdata bag to destination server by the second escape way；
If the transmission content only has the second packet, video sending end is counted using video-encryption key to described second
It is encrypted according to the target video section in bag, to generate encrypted video section, and encrypted video section is packed into the 3rd son
Packet, and video-encryption key is packaged into the 4th subdata bag；And video sending end will by the first escape way
3rd subdata bag is sent to destination server, is sent the 4th subdata bag to destination server by the second escape way；
If the transmission content is the first packet and the second packet, video sending end uses different encryptions respectively
First packet and second packet are encrypted mode, and by the first escape way by first after encryption
Packet is sent to destination server, is sent the second packet after encryption to destination server by the second escape way；
Video receiver sends video acquisition request to destination server, and carrying video in the video acquisition request connects
Generation time, target data coding and the exchange password of receiving encoding, generation the video acquisition request of receiving end；
Destination server is received after the video acquisition request, asks upward primary server to be sent out the video acquisition
Send；
The upper level server judges whether according to the receiving encoding, the generation time and the exchange password
Allow the corresponding data of target data coding being sent to the video receiver；
If the result judged is to allow the corresponding data of target data coding being sent to the video receiver,
Then the upper level server sends to allow to send to destination server and instructed；
Destination server searches target data coding corresponding in the local database after receiving and allowing to send and instruct
Target down-transmitting data；
If destination server finds the target down-transmitting data in the local database, by the target down-transmitting data
Sent to video receiver.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, also
Including：
Destination server determines the reference resolution ratio of the video data after the video data after receiving the adjustment；
Destination server judges whether the numerical value of the reference resolution ratio is higher than default threshold value；If so, then destination service
Video data after the adjustment is uploaded to upper level server and preserved by device；If it is not, then destination server is adjusted described
Video data after whole is uploaded to next stage server and preserved；
Step destination server receive allow send instruct after, in the local database search target data coding institute
Corresponding target down-transmitting data also includes：
If destination server does not find the target down-transmitting data in the local database, destination server is upper one
The target down-transmitting data is searched respectively in level server and next stage server；
If finding target down-transmitting data in the upper level server, passed under being sent to the upper level server
Request, to send the target down-transmitting data to video receiver by the upper level server；
If finding target down-transmitting data in the next stage server, institute is extracted from the next stage server
Target down-transmitting data is stated, and the target down-transmitting data is sent to the video receiver.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein, step
Rapid sent to the upper level server passes down request, to send the mesh to video receiver by the upper level server
Mark down-transmitting data includes：
Upper level server sets up communication channel with the video receiver；
Upper level server carries out password authentification according to default access password to the video receiver；
If password authentification passes through, upper level server sets up the 3rd escape way with the video receiver, and will deposit
Storage is sent in the local target down-transmitting data by the 3rd escape way to video receiver.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, wherein,
Video sending end described in step also includes before obtaining the video data obtained captured by camera：
Camera is while generation video data in real time, according to the sequencing for generating the video data, at interval of
The predetermined time increases very first time stamp in real time video data；
Camera obtains the environmental data in shooting process by the environmental sensor being disposed thereon in real time；
Camera real-time judge specifies whether the environmental data at moment exceedes predetermined threshold value, if it exceeds then being regarded in real time
The specified moment of frequency evidence increases by the second timestamp.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, step
The rapid video sending end determines that multiple key frame images in the video data include：
Video sending end obtains background model from background model database；
Whether there is moving target in the first object two field picture of video sending end detection video data；
If there is moving target in first object two field picture, video sending end records the movement locus of real time kinematics target；
If not having moving target in first object two field picture, video sending end obtains next first object two field picture；
Video sending end when moving target is changed into inactive state from motion state, calculate real time kinematics target it is static when
Between；
Video sending end is sentenced according to the movement locus of the quiescent time, the movement velocity of moving target and moving target
The suspicion level of disconnected moving target；
If the suspicion level of moving target is one-level, video sending end will be displayed with the image conduct of the moving target
Key frame images；
If the suspicion level of moving target is two grades, video sending end sends the 3rd alarm signal to destination server.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, step
The rapid video sending end obtains background model from background model database to be included：
Video sending end obtains corresponding background model according to current time and weather conditions from background model database；
Be stored with the background model database camera of diverse location, different weather, not same date, captured by different time sections
The background model arrived.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 6th of first aspect kind, wherein, step
The rapid video sending end determines that multiple key frame images in the video data include：
Video sending end initiation parameter, the parameter includes setting predetermined threshold value A1, predetermined threshold value A2 and integer K
Value；
Video sending end reads the second target two field picture；
Video sending end sets up Gaussian Background image according to the model in background model database；
Video sending end is partitioned into moving mass by current second target two field picture and background image frame as difference；
Video sending end carries out light stream detection in each moving mass；
Video sending end removes the light stream vector that light stream amplitude is less than predetermined threshold value A1；
Video sending end is handled the moving mass in continuous K two field pictures, counts the width of moving mass light stream vector
Value and angle；
Video sending end judges whether the accumulated value of the light stream amplitude of continuous K two field pictures is more than predetermined threshold value A2, if it is,
Then it regard the second target two field picture as the key frame images.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 7th of first aspect kind, wherein, also
Including：
Upper level server monitors next stage server and receives the data volume of data and send the data volume of data in real time；
The reference ratio of the data volume of the data volume for receiving data and the transmission data in the unit of account time；
If the reference ratio exceedes first threshold set in advance, the bandwidth of the next stage server is reduced；
If the reference ratio is less than Second Threshold set in advance, alarm signal is sent to highest server.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 8th of first aspect kind, wherein, also
Including：Destination server is after the video data after receiving the adjustment, according to every frame in the video data after the adjustment
Every two field picture is divided into the image subblock of some different perspective degree by pedestrian's height of image as standard；
Destination server extracts the Feature Descriptor of described image sub-block, wherein, the Feature Descriptor includes deep layer god
Through network characterization；
Deep neural network feature described in destination server Classified optimization, obtains the vector characteristics collection of described image sub-block；
Destination server sets up the SVR of different kernel functions according to vector characteristics collection and number of people in image in described image sub-block
Mathematical modeling；
Destination server calls corresponding kernel function to arrive according to crowded degree in described image sub-block and sparse degree
In mathematical modeling, the number of described image sub-block is counted；
Destination server uses camera marking method, obtains the coordinate vector of the deep neural network feature；
The displacement of the deep neural network feature of two frame described image sub-blocks before and after destination server contrast, according to institute's rheme
Move the moving direction and translational speed of calculating crowd；
Destination server is shown the moving direction and the numerical value of translational speed on monitoring display screen.
Second aspect, the embodiment of the present invention additionally provides a kind of video sharing system, for realizing as described in relation to the first aspect
Method, the video sharing system include multiple video sending ends, multiple video receivers and server zone；The server
Group include level of security improve successively first order server, second level server, third level server, fourth stage server and
Level V server, first order server, second level server, third level server and fourth stage server with it is corresponding
One or more video sending end communication connections, and first order server, second level server, third level server and the fourth stage
Server is connected with corresponding one or more video reception end communications, and second level server respectively with first order service
Device and the communication connection of third level server；Third level server connects with second level server and the communication of fourth stage server respectively
Connect, fourth stage server is connected with third level server and the communication of level V server respectively；The visit of the server of different stage
Ask that password and access mode are differed；The video sharing system also includes private cloud storage server；
Video sending end, video receiver and server zone are used to perform corresponding step according to method as described in relation to the first aspect
Suddenly；The communication of the private cloud storage device and the server zone is connected, for by the data received by the server zone
Stored.
A kind of video sharing method provided in an embodiment of the present invention, with camera of the prior art directly by video data
It is sent to video receiver to compare, it has obtained the first number by first being pre-processed video data in video sending end
According to bag and the second packet, and video data have adjusted to the destination server being sent to after resolution ratio in server zone；
And destination server can then make requests on if necessary to more accurately data to video sending end, after request passes through,
Target dynamic figure in key frame images in first packet, and/or the second packet can be sent to mesh by video sending end
Server is marked, and then destination server is got more accurate data；Destination server in server zone pin again afterwards
To property by data distributing to video receiver, so as to complete passing on for video data, security is improved.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows the network architecture diagram for the video sharing method that the embodiment of the present invention is provided；
Fig. 2 shows first details flow chart of the video sharing method that the embodiment of the present invention is provided；
Fig. 3 shows second details flow chart of the video sharing method that the embodiment of the present invention is provided；
Fig. 4 shows the 3rd details flow chart of the video sharing method that the embodiment of the present invention is provided.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be arranged and designed with a variety of configurations herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
This application provides a kind of video sharing method, as illustrated in fig. 1 and 2, this method acts on video sharing system, institute
Stating video sharing system includes multiple video sending ends, multiple video receivers and server zone 103；The server zone 103
First order server 201, second level server 202, third level server 203, the fourth stage improved successively including level of security
Server 204 and level V server 205, first order server 201, second level server 202, the and of third level server 203
Fourth stage server 204 is connected with corresponding one or more video sending ends communication, and first order server 201, the
Secondary server 202, third level server 203 and fourth stage server 204 with corresponding one or more video receptions
End communication is connected, and second level server 202 is connected with first order server 201 and the communication of third level server 203 respectively；The
Three tier server 203 is connected with second level server 202 and the communication of fourth stage server 204 respectively, 204 points of fourth stage server
It is not connected with third level server 203 and the communication of level V server 205；The access password of the server of different stage and access
Mode is differed；The video sharing method includes：
Video sending end obtains the video data obtained captured by camera；
It is logical that video sending end sets up the first escape way, the second escape way and transmission of video respectively with destination server
Road, the address of the destination server is pre-stored in the video sending end, and the destination server is the first order clothes
Level of security is sent out with the video in business device 201, second level server 202, third level server 203, fourth stage server 204
A corresponding server of sending end；
Video sending end determines multiple key frame images in the video data；
Video sending end extracts all key frame images, and is packed into the first packet, and by institute
The first packet is stated to be stored in locally；
Video sending end extracts target video section using the key frame images as reference from the video data, described
The time span of target video section is less than default time threshold, and, each key frame images are respectively positioned on the target and regarded
In frequency range；
Target video section is made as target dynamic figure by video sending end, and the target dynamic figure is packed into
Second packet, and second packet is stored in locally；
Video sending end detects the actual network speed value of current video transmission channel；
Video sending end calculates target resolution according to actual network speed value and the size of the video data；
The video data is adjusted to the size of target resolution by video sending end；
Video sending end sends the video data after the adjustment by transmission of video passage to destination server, and will
The time ciphertext generated temporarily is sent to destination server, and the time ciphertext is to sending using the encryption key made an appointment
What moment value was obtained after being encrypted, the delivery time value is the real time that video sending end sends the video data；
Destination server, if the video data does not meet default requirement, makes after the video data is received
The time ciphertext is decrypted with the decruption key made an appointment, to obtain the delivery time value；
Destination server searches the object code corresponding to the delivery time value, the password in the cipher table prestored
The code corresponding to the different periods is recorded in table；
Destination server is sent to video sending end by the first escape way and obtains request, and described obtain in request carries
There is the destination server to receive the temporal information and request content of the video data；
Destination server sends the object code by the second escape way to video sending end；
Video sending end judges whether the interval at the first moment and the second moment is less than default numerical value, first moment
At the time of being that video sending end receives the acquisition request, second moment is that video sending end receives the target generation
At the time of code；
If the interval at the first moment and the second moment is less than default numerical value, video sending end is according to the temporal information
The request permissions for obtaining request is determined with the object code；
Video sending end determines transmission content, the transmission content bag according to the request permissions and the request content
Include first packet and second packet；
If the transmission content only has the first packet, video sending end closes each in first packet
Key two field picture is split as the first component and the second component, and all the first components are packed into the first subdata bag, will be complete
The component of portion second is packed into the second subdata bag；And by the first escape way by the first subdata bag to destination server
Send, sent the second subdata bag to destination server by the second escape way；
If the transmission content only has the second packet, video sending end is counted using video-encryption key to described second
It is encrypted according to the target video section in bag, to generate encrypted video section, and encrypted video section is packed into the 3rd son
Packet, and video-encryption key is packaged into the 4th subdata bag；And video sending end will by the first escape way
3rd subdata bag is sent to destination server, is sent the 4th subdata bag to destination server by the second escape way；
If the transmission content is the first packet and the second packet, video sending end uses different encryptions respectively
First packet and second packet are encrypted mode, and by the first escape way by first after encryption
Packet is sent to destination server, is sent the second packet after encryption to destination server by the second escape way；
Video receiver sends video acquisition request to destination server, and carrying video in the video acquisition request connects
Generation time, target data coding and the exchange password of receiving encoding, generation the video acquisition request of receiving end；
Destination server is received after the video acquisition request, asks upward primary server to be sent out the video acquisition
Send；
The upper level server judges whether according to the receiving encoding, the generation time and the exchange password
Allow the corresponding data of target data coding being sent to the video receiver；
If the result judged is to allow the corresponding data of target data coding being sent to the video receiver,
Then the upper level server sends to allow to send to destination server and instructed；
Destination server searches target data coding corresponding in the local database after receiving and allowing to send and instruct
Target down-transmitting data；
If destination server finds the target down-transmitting data in the local database, by the target down-transmitting data
Sent to video receiver.
Wherein, first order server 201- fourth stages server 204 is typically that region be directly facing user (video sending end and to regard
Frequency receiving terminal), destination server is also one in this four servers.
Method provided herein, video sending end has first extracted two kinds of data from video data, is to close respectively
Key two field picture and Dynamic Graph, both data can reflect the information of monitor area to a certain extent, and both are counted
According to image quality be all can be guaranteed (not adjusting resolution ratio, the definition of image can be guaranteed).Then, first
It is determined that actual network speed value and the size of video data, and then target resolution is calculated, in general, target resolution is inevitable
Less than video data original resolution, in order to allow video to be quickly sent to destination server.The application institute
The method of offer preferably uses AVB technologies as transmission technology.
If destination server expects the content of key component (key frame images and target dynamic figure) afterwards, need
Acquisition request is generated based on time ciphertext and cipher table, is carried wherein obtaining in request in temporal information and request
Hold, and need to send object code.
Video sending end judges whether to give destination server feedback corresponding letter by a series of checking afterwards
Cease (information i.e. in the first packet and the second packet).It should be noted that the purpose for setting two escape ways is to carry
High safety rank, generally, the probability that two escape ways are cracked are relatively low.And it is possible to video sending end to
After destination server transmission content, used escape way is just closed, and reopen another escape way.
Key frame images are split as the first component and the second component refers to a complete image being divided into two, the
Complete key frame images can be formed after portion figure and the combination of the second component, the safety of key frame images can be ensured with this
Property.It is similar when transmission content only has the second packet, be also to handle in this manner, to improve security.
Also, by being provided with multistage server so that the user of different stage can enter line number to corresponding server
According to upload, the pressure of server is shared.Meanwhile, the level of security of different server be it is different, generally, safe level
Higher server is not that for towards higher-level user, also, user directly can not generally take with level of security highest
Business device (level V server 205) carries out Direct Communication, and this causes the degree in highest server to be difficult to be attacked by hacker,
It ensure that the safety of server architecture.Because the access password and access mode of the server of different stage are differed, even if
Therefore some server of assault, other servers will not also be affected, and can also continue to work.
Because final video transmitting terminal simply have sent the first packet and/or the second packet, phase to destination server
For original video data, this has been seldom, occupancy network transmission resource that will not be excessive, it is ensured that transmission
Speed, is also retained part and parcel and has been transmitted, and improves the convenience used, high efficiency and security.
It is preferred that, method provided herein also comprises the following steps on the basis of the above：
Destination server determines the reference resolution ratio of the video data after the video data after receiving the adjustment；
Destination server judges whether the numerical value of the reference resolution ratio is higher than default threshold value；If so, then destination service
Video data after the adjustment is uploaded to upper level server and preserved by device；If it is not, then destination server is adjusted described
Video data after whole is uploaded to next stage server and preserved；
Step destination server receive allow send instruct after, in the local database search target data coding institute
Corresponding target down-transmitting data also includes：
If destination server does not find the target down-transmitting data in the local database, destination server is upper one
The target down-transmitting data is searched respectively in level server and next stage server；
If finding target down-transmitting data in the upper level server, passed under being sent to the upper level server
Request, to send the target down-transmitting data to video receiver by the upper level server；
If finding target down-transmitting data in the next stage server, institute is extracted from the next stage server
Target down-transmitting data is stated, and the target down-transmitting data is sent to the video receiver.
It is, video data can also be the upper level server or next stage server for being stored in destination server
In.Upper level server and next stage server herein, refer to the level of security server adjacent with destination server, such as
The upper level server and next stage server of second level server 202 are third level server 203 and first order service respectively
Device 201.
And then, when target down-transmitting data is sent, destination server can the first lookup pair in local server
The data answered, if not provided, corresponding data are searched into upper level server and next stage server again, and after finding
Carry out data transmission.
It is preferred that, step to the upper level server send down pass ask, with by the upper level server to regarding
Frequency receiving terminal, which sends the target down-transmitting data, to be included：
Upper level server sets up communication channel with the video receiver；
Upper level server carries out password authentification according to default access password to the video receiver；
If password authentification passes through, upper level server sets up the 3rd escape way with the video receiver, and will deposit
Storage is sent in the local target down-transmitting data by the 3rd escape way to video receiver.
That is, upper level server first has to verify video receiver before data are sent, when being verified it
Afterwards, then by setting up the escape way of amount the 3rd temporarily the transmission of target down-transmitting data is carried out.Generally the 3rd safety is logical
Road needs to close after the transmission of target down-transmitting data is completed.
It is preferred that, as shown in figure 3, also comprising the following steps based on the above method：
S301, video sending end, according to the priority of shooting time, is extracted in video data successively after video data is obtained
Multi-frame-reference image；
S302, video sending end carries out number analysis to every frame reference picture respectively, is deposited with obtaining on every frame reference picture
Number of examinees；
S303, video sending end is by the way of weighted calculation, the number of examinees meter according to present on every frame reference picture
Calculation number evaluation of estimate；
S304, video sending end determines the monitoring urgency level in region corresponding to camera according to number evaluation of estimate；
S305, video sending end determines corresponding monitoring improved procedure according to monitoring urgency level；
S306, video sending end carries out respective handling according to the species of improved procedure；
If it is the first to monitor improved procedure, video sending end is sent to destination server increases asking for camera quantity
Ask；
If it is second to monitor improved procedure, video sending end sends increase dollying device quantity to destination server
Request；
If it is the third to monitor improved procedure, video sending end sends to destination server and removes dollying device quantity
Request；
If it is the 4th kind to monitor improved procedure, video sending end does not send to destination server and asked.
It is, by be by the personnel amount on video pictures come determine whether increase camera, or reduce take the photograph
As head, or increase dollying head, to ensure the comprehensive of monitoring and economize on resources.
It is preferred that, as shown in figure 4, based on the above method, being obtained in step video sending end captured by camera
Before obtained video data, also comprise the following steps：
S401, camera in real time generation video data while, according to generation video data sequencing, at interval of
The predetermined time increases very first time stamp in real time video data；
S402, camera obtains the environmental data in shooting process by the environmental sensor being disposed thereon in real time；
S403, camera real-time judge specifies whether the environmental data at moment exceedes predetermined threshold value, if it exceeds then existing
The specified moment of real time video data increases by the second timestamp.
Wherein, the purpose of increase very first time stamp is to facilitate user (such as the user using destination server) quickly to certain
One picture is positioned, therefore very first time stamp should be along equally distributed before and after timeline.Second timestamp is to use
To show critical positions, environmental data such as temperature data, air speed data etc. influence whether the tool of the weather condition of picture record
Body parameter, when such as wind speed is excessive, video camera may rock, and the picture now recorded can shake, in order to avoid with
Family is mistakenly considered other situations (such as earthquake) now occurred, it is therefore desirable to increase by the second timestamp to illustrate now to there occurs certain
Weather condition, and this kind of weather condition influences whether the recording of picture.
It is preferred that, step video sending end determines that multiple key frame images in video data include：
Video sending end obtains background model from background model database；
Whether there is moving target in the first object two field picture of video sending end detection video data；
If there is moving target in first object two field picture, video sending end records the movement locus of real time kinematics target；
If not having moving target in first object two field picture, video sending end obtains next first object two field picture；
Video sending end when moving target is changed into inactive state from motion state, calculate real time kinematics target it is static when
Between；
Video sending end judges fortune according to the movement locus of quiescent time, the movement velocity of moving target and moving target
The suspicion level of moving-target；
If the suspicion level of moving target is one-level, video sending end will be displayed with the image of moving target as key
Two field picture；
If the suspicion level of moving target is two grades, video sending end sends the 3rd alarm signal to destination server.
If it is, some moving target persistently be changed into inactive state, illustrate the problem of picture is likely to occur.Often
See as someone loses junk product, or some people place dangerous material, and such a picture should be noted that therefore could be arranged to key
Frame.If can be higher with suspicion level, alarm signal should be directly transmitted, and be unable to user remember check key frame when
Time is checked again.
It is preferred that, step video sending end obtains background model from background model database to be included：
Video sending end obtains corresponding background model according to current time and weather conditions from background model database；
Be stored with background model database the camera of diverse location, different weather, not same date, taken by different time sections
Background model.
And then by enriching the content of background model database, it is ensured that background image is more targeted, is referred to
Property is stronger, improves the value compared.
It is preferred that, step video sending end determines that multiple key frame images in video data include：
Video sending end initiation parameter, parameter includes the value of setting predetermined threshold value A1, predetermined threshold value A2 and integer K；
Video sending end reads the second target two field picture；
Video sending end sets up Gaussian Background image according to the model in background model database；
Video sending end is partitioned into moving mass by current second target two field picture and background image frame as difference；
Video sending end carries out light stream detection in each moving mass；
Video sending end removes the light stream vector that light stream amplitude is less than predetermined threshold value A1；
Video sending end is handled the moving mass in continuous K two field pictures, counts the width of moving mass light stream vector
Value and angle；
Video sending end judges whether the accumulated value of the light stream amplitude of continuous K two field pictures is more than predetermined threshold value A2, if it is,
Then it regard the second target two field picture as key frame images.
It is for second, by the mode of key frame images, to be more suitable for whether the sexual behaviour of detection colony occurs (as beaten group that this, which is,
Frame etc.).Except the mode of both confirmation key frames, it can also be and some image is determined under the operational order of some user
For key frame images.
It is preferred that, method provided herein also includes：
Upper level server monitors next stage server and receives the data volume of data and send the data volume of data in real time；
The reference ratio of the data volume of the data volume for receiving data and the transmission data in the unit of account time；
If the reference ratio exceedes first threshold set in advance, the bandwidth of the next stage server is reduced；
If the reference ratio is less than Second Threshold set in advance, alarm signal is sent to highest server.
It is, when exceeding first threshold with reference to ratio, then illustrating that server receives the data volume of data than sending
The data volume of data is more, and because the data volume that server is received within the unit interval is usually stable, now then explanation is sent out
Sending the data volume of data has larger decline (quantity of the video receiver of such as access network is reduced), now can then reduce
The bandwidth of next stage server, saves Internet resources.It is corresponding, if being less than Second Threshold with reference to ratio, illustrate from next
The port of level server downloading data is excessive, the problem of now there may exist malicious downloading, therefore should send alarm signal.
It is preferred that, step video sending end is entered using different cipher modes to the first packet and the second packet respectively
Row encryption includes：
Video sending end is pre-processed to the key frame images in the first packet, wavelet transformation and quantification treatment；
Video sending end carries out Bit-Plane Encoding to the key frame images after quantization, obtains coefficient bits and context；
Video sending end coefficient bits is encrypted operation, or, operation is encrypted to coefficient bits and context；
Video sending end carries out entropy code and code stream organization to the coefficient bits after cryptographic operation and context, to complete to add
It is close.
Such a cipher mode is more suitable for that image is encrypted, it is ensured that the degree of encryption, also ensure that operand not
Can be too high.
It is preferred that, method provided herein also comprises the following steps：
Destination server is after the video data after receiving adjustment, according to every two field picture in the video data after adjustment
Every two field picture is divided into the image subblock of some different perspective degree by pedestrian's height as standard；
Destination server extracts the Feature Descriptor of image subblock, wherein, Feature Descriptor is special comprising deep-neural-network
Levy；
Destination server Classified optimization deep neural network feature, obtains the vector characteristics collection of image subblock；
Destination server sets up the SVR of different kernel functions number according to vector characteristics collection and number of people in image in image subblock
Learn model；
Destination server calls corresponding kernel function to mathematics according to crowded degree in image subblock and sparse degree
In model, the number of statistical picture sub-block；
Destination server uses camera marking method, obtains the coordinate vector of deep neural network feature；
The displacement of the deep neural network feature of two field pictures sub-block, people is calculated according to displacement before and after destination server contrast
The moving direction and translational speed of group；
Destination server is shown moving direction and the numerical value of translational speed on monitoring display screen.
Wherein, it is (convolutional neural networks ConvolutionalNeural that the deep neural network feature is actual
Network, CNN), the extraction of this feature is carried out based on Caffe deep learnings network model, is walked in the video of the piecemeal
It is rapid as follows：First, input picture uniform sizes are to 224*224 sizes, and convolution kernel size is 5*5 pixels, using 7 layers of convolutional Neural
Network, step-length is 4, due to use weights sharing policy, therefore each Feature map of first layer convolution can training parameter be
26, connection number is 44*44*25=48400, and every layer by that analogy afterwards.Then pond processing, the process in pond are carried out
For：Four adjacent pixels are summed, then weighted by scalar W, is further added by biasing b, is then activated by a sigmoid
Function, produces a Feature Mapping figure P for probably reducing four times.Until characteristic pattern is changed into 1*1 dimensions, connected entirely, final
To each rect characteristic vector.Finally, image deep layer nerve of the local feature of all subimage blocks for 1024 dimensions is obtained
Network characterization.
By above-mentioned steps, moving direction and translational speed are shown on monitoring display frequency, user can be made more directly perceived
Situation about recognizing in current video.
Based on the above method, present invention also provides a kind of video sharing system, for realizing previously described method, institute
Stating video sharing system includes multiple video sending ends, multiple video receivers and server zone；The server zone includes peace
First order server, second level server, third level server, fourth stage server and level V clothes that full rank is improved successively
Be engaged in device, first order server, second level server, third level server and fourth stage server with corresponding one or many
Individual video sending end communication connection, and first order server, second level server, third level server and fourth stage server are equal
Be connected with corresponding one or more video reception end communications, and second level server respectively with first order server and the 3rd
Level server communication connection；Third level server is connected with second level server and the communication of fourth stage server respectively, the fourth stage
Server is connected with third level server and the communication of level V server respectively；The access password of the server of different stage and visit
Ask that mode is differed；The video sharing system also includes private cloud storage server；
Video sending end, video receiver and server zone are used to perform corresponding steps according to previously described method；Institute
State private cloud storage device to be connected with server zone communication, for the data received by the server zone to be deposited
Storage.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of video sharing method, it is characterised in that act on video sharing system, the video sharing system includes multiple
Video sending end, multiple video receivers and server zone；The server zone includes the first order that level of security is improved successively
Server, second level server, third level server, fourth stage server and level V server, first order server, second
Level server, third level server and fourth stage server are connected with corresponding one or more video sending ends communication,
And first order server, second level server, third level server and fourth stage server with it is corresponding one or more
Video reception end communication is connected, and second level server is connected with first order server and the communication of third level server respectively；The
Three tier server is connected with second level server and the communication of fourth stage server respectively, and fourth stage server takes with the third level respectively
Business device and the communication connection of level V server；The access password and access mode of the server of different stage are differed；It is described
Video sharing method includes：
Video sending end obtains the video data obtained captured by camera；
Video sending end sets up the first escape way, the second escape way and transmission of video passage, institute respectively with destination server
The address for stating destination server is pre-stored in the video sending end, and the destination server be the first order server,
Level of security is corresponding with the video sending end in second level server, third level server, fourth stage server one
Server；
Video sending end determines multiple key frame images in the video data；
Video sending end extracts all key frame images, and is packed into the first packet, and by described the
One packet is stored in locally；
Video sending end extracts target video section, the target using the key frame images as reference from the video data
The time span of video-frequency band is less than default time threshold, and, each key frame images are respectively positioned on the target video section
In；
Target video section is made as target dynamic figure by video sending end, and the target dynamic figure is packed into second
Packet, and second packet is stored in locally；
Video sending end detects the actual network speed value of current video transmission channel；
Video sending end calculates target resolution according to actual network speed value and the size of the video data；
The video data is adjusted to the size of target resolution by video sending end；
Video sending end sends the video data after the adjustment by transmission of video passage to destination server, and will be interim
The time ciphertext of generation is sent to destination server, and the time ciphertext is to delivery time using the encryption key made an appointment
What value was obtained after being encrypted, the delivery time value is the real time that video sending end sends the video data；
Destination server is after the video data is received, if the video data does not meet default requirement, using pre-
The time ciphertext is decrypted the decruption key first arranged, to obtain the delivery time value；
Destination server is searched in the cipher table prestored in the object code corresponding to the delivery time value, the cipher table
Record the code corresponding to the different periods；
Destination server is sent to video sending end by the first escape way and obtains request, and described obtain carries in request
State temporal information and request content that destination server receives the video data；
Destination server sends the object code by the second escape way to video sending end；
Video sending end judges whether the interval at the first moment and the second moment is less than default numerical value, and first moment is to regard
At the time of the sending end that takes place frequently receives the acquisition request, second moment is that video sending end receives the object code
Moment；
If the interval at the first moment and the second moment is less than default numerical value, video sending end is according to the temporal information and institute
State object code and determine the request permissions for obtaining request；
Video sending end determines transmission content according to the request permissions and the request content, and the transmission content includes institute
State the first packet and second packet；
If the transmission content only has the first packet, video sending end is by each key frame in first packet
Image is split as the first component and the second component, and all the first components are packed into the first subdata bag, will all the
Bipartite graph is packed into the second subdata bag；And sent out the first subdata bag to destination server by the first escape way
Send, sent the second subdata bag to destination server by the second escape way；
If the transmission content only has the second packet, video sending end is using video-encryption key to second packet
In target video section be encrypted, with generate encrypted video section, and by the encrypted video section be packed into the 3rd subdata
Bag, and video-encryption key is packaged into the 4th subdata bag；And video sending end by the first escape way by the 3rd
Subdata bag is sent to destination server, is sent the 4th subdata bag to destination server by the second escape way；
If the transmission content is the first packet and the second packet, video sending end uses different cipher modes respectively
First packet and second packet are encrypted, and by the first escape way by the first data after encryption
Wrap and sent to destination server, sent the second packet after encryption to destination server by the second escape way；
Video receiver sends video acquisition request to destination server, and video receiver is carried in the video acquisition request
Receiving encoding, the generation time of generation video acquisition request, target data coding and exchange password；
Destination server is received after the video acquisition request, asks upward primary server to send the video acquisition；
The upper level server is determined whether according to the receiving encoding, the generation time and the exchange password
The target data is encoded into corresponding data and is sent to the video receiver；
If the result judged is to allow the corresponding data of target data coding being sent to the video receiver, institute
Stating upper level server and being sent to destination server allows to send instruction；
Destination server searches the corresponding mesh of target data coding in the local database after receiving and allowing to send and instruct
Mark down-transmitting data；
If destination server finds the target down-transmitting data in the local database, by the target down-transmitting data to regarding
Frequency receiving terminal is sent.
2. video sharing method according to claim 1, it is characterised in that also include：
Destination server determines the reference resolution ratio of the video data after the video data after receiving the adjustment；
Destination server judges whether the numerical value of the reference resolution ratio is higher than default threshold value；If so, then destination server will
Video data after the adjustment is uploaded to upper level server and preserved；If it is not, then destination server is by after the adjustment
Video data be uploaded to next stage server and preserved；
Step destination server searches target data coding corresponding in the local database after receiving and allowing to send and instruct
Target down-transmitting data also include：
If destination server does not find the target down-transmitting data in the local database, destination server takes in upper level
The target down-transmitting data is searched respectively in business device and next stage server；
If finding target down-transmitting data in the upper level server, send to pass down to the upper level server and ask
Ask, to send the target down-transmitting data to video receiver by the upper level server；
If finding target down-transmitting data in the next stage server, the mesh is extracted from the next stage server
Down-transmitting data is marked, and the target down-transmitting data is sent to the video receiver.
3. video sharing method according to claim 1, it is characterised in that
Step sends to pass down to the upper level server and asked, to be sent by the upper level server to video receiver
The target down-transmitting data includes：
Upper level server sets up communication channel with the video receiver；
Upper level server carries out password authentification according to default access password to the video receiver；
If password authentification passes through, upper level server sets up the 3rd escape way with the video receiver, and will be stored in
The local target down-transmitting data is sent by the 3rd escape way to video receiver.
4. video sharing method according to claim 1, it is characterised in that obtain shooting in video sending end described in step
Also include before the video data obtained captured by head：
Camera is while generation video data in real time, according to the sequencing for generating the video data, at interval of predetermined
Time increase in real time video data the very first time stamp；
Camera obtains the environmental data in shooting process by the environmental sensor being disposed thereon in real time；
Camera real-time judge specifies whether the environmental data at moment exceedes predetermined threshold value, if it exceeds then in real-time video number
According to the specified moment increase the second timestamp.
5. video sharing method according to claim 4, it is characterised in that regarded described in video sending end determination described in step
Multiple key frame images of the frequency in include：
Video sending end obtains background model from background model database；
Whether there is moving target in the first object two field picture of video sending end detection video data；
If there is moving target in first object two field picture, video sending end records the movement locus of real time kinematics target；If the
There is no moving target in one target two field picture, then video sending end obtains next first object two field picture；
Video sending end calculates the quiescent time of real time kinematics target when moving target is changed into inactive state from motion state；
Video sending end judges fortune according to the movement locus of the quiescent time, the movement velocity of moving target and moving target
The suspicion level of moving-target；
If the suspicion level of moving target is one-level, video sending end will be displayed with the image of the moving target as key
Two field picture；
If the suspicion level of moving target is two grades, video sending end sends the 3rd alarm signal to destination server.
6. video sharing method according to claim 5, it is characterised in that video sending end described in step is from background model
Background model is obtained in database to be included：
Video sending end obtains corresponding background model according to current time and weather conditions from background model database；It is described
Be stored with background model database the camera of diverse location, different weather, not same date, taken by different time sections
Background model.
7. video sharing method according to claim 1, it is characterised in that regarded described in video sending end determination described in step
Multiple key frame images of the frequency in include：
Video sending end initiation parameter, the parameter includes the value of setting predetermined threshold value A1, predetermined threshold value A2 and integer K；
Video sending end reads the second target two field picture；
Video sending end sets up Gaussian Background image according to the model in background model database；
Video sending end is partitioned into moving mass by current second target two field picture and background image frame as difference；
Video sending end carries out light stream detection in each moving mass；
Video sending end removes the light stream vector that light stream amplitude is less than predetermined threshold value A1；
Video sending end is handled the moving mass in continuous K two field pictures, count moving mass light stream vector amplitude and
Angle；
Video sending end judges whether the accumulated value of the light stream amplitude of continuous K two field pictures is more than predetermined threshold value A2, if it is, will
The second target two field picture is used as the key frame images.
8. video sharing method according to claim 1, it is characterised in that also include：
Upper level server monitors next stage server and receives the data volume of data and send the data volume of data in real time；
The reference ratio of the data volume of the data volume for receiving data and the transmission data in the unit of account time；
If the reference ratio exceedes first threshold set in advance, the bandwidth of the next stage server is reduced；
If the reference ratio is less than Second Threshold set in advance, alarm signal is sent to highest server.
9. video sharing method according to claim 1, it is characterised in that also include：Destination server is receiving
State after the video data after adjustment, yardstick base is used as according to pedestrian's height in the video data after the adjustment per two field picture
Standard, every two field picture is divided into the image subblock of some different perspective degree；
Destination server extracts the Feature Descriptor of described image sub-block, wherein, the Feature Descriptor includes deep layer nerve net
Network feature；
Deep neural network feature described in destination server Classified optimization, obtains the vector characteristics collection of described image sub-block；
Destination server sets up the SVR of different kernel functions number according to vector characteristics collection and number of people in image in described image sub-block
Learn model；
Destination server calls corresponding kernel function to mathematics according to crowded degree in described image sub-block and sparse degree
In model, the number of described image sub-block is counted；
Destination server uses camera marking method, obtains the coordinate vector of the deep neural network feature；
The displacement of the deep neural network feature of two frame described image sub-blocks before and after destination server contrast, according to the displacement meter
The moving direction and translational speed of calculation crowd；
Destination server is shown the moving direction and the numerical value of translational speed on monitoring display screen.
10. a kind of video sharing system, for realizing the method as described in claim any one of 1-9, it is characterised in that described
Video sharing system includes multiple video sending ends, multiple video receivers and server zone；The server zone includes safety
First order server, second level server, third level server, fourth stage server and level V service that rank is improved successively
Device, first order server, second level server, third level server and fourth stage server with it is corresponding one or more
Video sending end communication connection, and first order server, second level server, third level server and fourth stage server with
Corresponding one or more video reception end communications connection, and second level server respectively with first order server and the third level
Server communication connection；Third level server is connected with second level server and the communication of fourth stage server respectively, fourth stage clothes
Business device is connected with third level server and the communication of level V server respectively；The access password of the server of different stage and access
Mode is differed；The video sharing system also includes private cloud storage server；
Video sending end, video receiver and server zone are used to perform according to the method as described in claim any one of 1-9
Corresponding steps；The private cloud storage device is connected with server zone communication, for by received by the server zone
Data stored.
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