CN101610396A - Intellective video monitoring device module and system and method for supervising thereof with secret protection - Google Patents
Intellective video monitoring device module and system and method for supervising thereof with secret protection Download PDFInfo
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- CN101610396A CN101610396A CNA200810115066XA CN200810115066A CN101610396A CN 101610396 A CN101610396 A CN 101610396A CN A200810115066X A CNA200810115066X A CN A200810115066XA CN 200810115066 A CN200810115066 A CN 200810115066A CN 101610396 A CN101610396 A CN 101610396A
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Abstract
The invention discloses a kind of intelligent video monitoring system, comprising: one or more intellective video monitoring device modules, IVSS Platform Server, video monitoring system terminal with secret protection.Wherein, described intellective video monitoring device module except can detect in real time target in the monitoring scene, follow the tracks of, classification, behavioural analysis etc. are intelligent, automation handles; can also carry out scramble to the content that wherein relates to privacy and handle, with the protection privacy information.According to scheme provided by the invention; realized the intelligent control method of protection privacy; " unusually " that occurs in not only can the automatic distinguishing picture; and enforcement moving object detection, tracking, classification and behavioural analysis; realize intelligent alarm; prevention incident effectively takes place, and can protect the privacy information of monitoring, and any unauthorized persons can't be obtained privacy information.
Description
Technical field
The present invention relates to the video monitoring technology, be meant a kind of intellective video monitoring device module and system and method for supervising thereof especially with secret protection.
Background technology
Along with the increase of crime levels and threat, safety has become world's question of common concern.Video monitoring is one of method that addresses this problem.Except public safety, video monitoring also can solve some other problemses effectively, as the adjusting of crowded urban traffic amount.Large-scale for many years supervisory control system has obtained using widely in the main place such as airport, bank, highway or down town etc.
At present conventional video monitoring system only is that the monitoring scene image is sent to Control Room by DVS, is finished occurring the judgement of " unusually " in the monitoring scene by the people, or finishes video storage with realization checking and collecting evidence afterwards by DVR.But there is following problem in above-mentioned supervisory control system: use a large amount of rig cameras in (1) video monitoring system, and have only a spot of camera views can be presented on the monitoring screen, need see by constantly switching with the guarantor; (2) people's attentiveness can not concentrate on the monitored picture for a long time, will have 80% effective information to lose after general 20 minutes; (3) most monitored pictures are " invalid information " (not having incident to take place).
In order to overcome the problems referred to above, video monitoring system develops into intelligent video monitoring system, and as CN 101093603A, this system can detect and store useful information automatically, need not manually monitor, and the supervisory control system intellectuality, can before taking place, incident handle.
Yet, when the supervisory control system of above-mentioned patent CN 101093603A improves safety, brought another problem, promptly how to protect the right of privacy.In fact, when being born from " electronic eyes ", the problem of the protection person of being monitored privacy has just occurred, and along with the increase of surveillance, this problem becomes more and more outstanding.
In sum, press for the intelligent video monitoring scheme that proposition can be protected privacy information at present.
Summary of the invention
In view of this; main purpose of the present invention is to provide a kind of intellective video monitoring device module that uses in the intelligent video monitoring system of secret protection that has; the image intelligent treatment facility that has based on it combines with the comprehensive safety defense monitoring system platform software of IVSS intelligent video, constitutes a complete intelligent video monitoring system with privacy protection function.
The intelligent video monitoring system that provides one to have secret protection also is provided another object of the present invention.This system can detect, store useful information automatically, need not manually monitor, the supervisory control system intellectuality can be handled before incident takes place, and can realize secret protection simultaneously.
A further object of the present invention also is to provide a kind of method for supervising with intelligent video monitoring system of secret protection; " unusually " that occurs in not only can the automatic distinguishing picture; and enforcement moving object detection, tracking, classification and behavioural analysis; realize intelligent alarm; prevention incident effectively takes place; and can protect the privacy information of monitoring, any unauthorized persons can't be obtained privacy information.
According to an aspect of the present invention, provided a kind of intellective video monitoring device module with privacy protection function, described module comprises: input module, output module, image intelligent treatment facility, data/signaling transport module and power module; Described image intelligent treatment facility comprises: collection in worksite unit, intellectual analysis processing unit and Video service unit is characterized in that:
Described Video service unit comprises system management member, incident management member, communication data processing member, audio and video data streams management component, audio coding decoding member and video scrambling coding member; Wherein, described video scrambling coding member is used for the privacy information of scramble people face, car, animal, scene, and the video of scramble is carried out video coding, with output code flow.
Best, the processing procedure of described video scrambling coding member comprises the steps:
Steps A, frequency domain transform are used for the video that receives is carried out frequency domain transform, can realize by DCT or wavelet transformation;
Step B, generation pseudo noise;
The zone that step C, scramble are selected;
Step D, video coding are used for the scramble processed video is carried out video coding, with output code flow.
Best, described step B is: by pseudo-random sequence generator or some chaotic maps functions, generate a series of pseudo random numbers; Simultaneously, the key value that produces described random noise is encrypted, the key after the encryption needs severe keeping, and can send the authorized person when needed to.
Wherein, described encryption or by RSA, the cryptographic algorithm that DSA etc. are traditional is realized, perhaps realizes by some watermarking algorithms.
Best, described step C is: the frequency coefficient in the corresponding steps A of mark and selected zone, the pseudo noise that the step B that produces by the frequency coefficient stack to mark produces is to reach the purpose in this selection zone of scramble.
Best, described step C is: be embedded in the process of watermark at described frequency domain, this watermark is the pseudo noise that step B produces, and watermarkedly realizes that by common open fire impression method the watermark embedding formula is:
f′＝f+α·w
Wherein, f is the frequency coefficient of described mark, and α is the embedment strength of watermark, and w is described pseudo noise, and f ' is the frequency coefficient after watermarked.
Best, the scramble degree or the distortion factor of the α control chart picture among the described step C in the open fire seal embedding formula.
Another aspect of the present invention is to have provided a kind of intelligent video monitoring system with secret protection, and described system comprises: intelligent in-situ monitor unit, IVSS Platform Server, video monitoring system terminal.
Described intelligent in-situ monitor unit, comprise one or more described intellective video monitoring device modules, described intellective video monitoring device module is placed on the on-the-spot interior different monitoring point of monitoring, be used to obtain field data and carry out intellectual analysis, Intelligent treatment, scramble relates to the video content of privacy information simultaneously.
Described IVSS Platform Server, under the management of IVSS platform software, described IVSS Platform Server is realized reception, analysis and the processing to multichannel far-end audio data, video data, sensor data information and image intelligent treatment facility intellectual analysis result, warning information, realization realizes configuration and maintenance to the described intellective video monitoring device module of far-end to demonstration, storage, playback and the retrieval of all types of data of far-end.
Further, described IVSS Platform Server also comprises a different verification process of authorizing the level user, and realizes the decoding deciphering management at difference mandate level user, and step is as follows:
(1) video decode is decoded the scramble code stream of input;
(2) key that has according to the user judges whether the user belongs to the authorized person, if then carry out step (3), otherwise leaps to step (4);
(3) decipher earlier according to the key that has, recover described key value, then the pseudo noise that produces by these key values, in conjunction with the watermark extracting algorithm, remove pseudo noise by from the frequency coefficient of scramble, extracting watermark, reaching, thereby recover original frequency domain data;
(4) frequency coefficient is carried out inverse transformation, to recover original video and to show this video content.
Described video monitoring system terminal comprises the PC and the network that are connected on the IVSS Platform Server, is used to receive the warning information from the IVSS Platform Server, and notifies the user to do further processing.Described network comprises the Internet and Wireless Telecom Equipment.Wherein, described the Internet links to each other with PC or mail server; Described cordless communication network links to each other with mobile phone or portable personal digital processor.
Best, described IVSS Platform Server also comprises a data memory cell, is used to store the scramble data that a control point sends, and carries out the inquiry of historical data and evidence obtaining in order to the user.
Best, described video monitoring system terminal is the PC that is connected on the described IVSS Platform Server, or the PC that links to each other with server by the Internet or other network, then described IVSS Platform Server is when having alarm information to occur, transmit audio/video data by network to authorization terminal, and stack intellectual analysis result.
Best, described IVSS Platform Server links to each other with mail server, then when warning information occurs, the IVSS Platform Server sends to the warning information or the intellectual analysis result's that superposeed the audio/video data form with Email in the E-mail mailbox of authorized user in the mail server.
Best, described video monitoring system terminal is mobile phone or PDA, then described IVSS Platform Server sends packet by wireless network to terminal, and this packet is the audio/video data information of the alarm signal or the intellectual analysis result's that superposeed different authorized user levels.
The user also can be at any old place in the world, arbitrary the computer from the Internet or the miscellaneous equipment of access network, IP address, user ID, password and authorization key by the IVSS Platform Server insert the IVSS Platform Server, and by the next instantaneous safety state of initiatively checking each control point of watch-list, perhaps check the historical record image and the Intelligent treatment result of each control point in the server database, do not limit the remote monitoring of distance in advance.
Another aspect of the present invention has provided a kind of intelligent video monitoring method with intelligent video monitoring system of secret protection, said method comprising the steps of:
(1) in one or more monitoring scene, obtains the on-the-spot various information of described monitoring;
(2) by the image intelligent treatment facility data of described input module input are carried out intellectual analysis and processing, and the video scrambling encoding process is carried out in the video area that will be referred to privacy information;
(3) voice data behind analysis and result, the coding, video data and the warning information after the scrambling and coding are uploaded to described IVSS Platform Server by the Network Transmission interface together;
(4) described IVSS Platform Server is received or initiatively obtain relevant information, classify and does and correspondingly handle, send warning information to described mandate video monitoring system terminal, the control intellective video monitoring device module of giving an order is realized linking and is alarmed.
Best, institute carries out intellectual analysis and processing comprises target detection, tracking, classification and behavioural analysis, can realize functions such as target identification and classification, moving target warning, motion target tracking, PTZ follow the tracks of, feature shooting automatically, moving target behavior detection, flow detection, crowded detection, legacy/stolen quality testing survey, pyrotechnics detection.
Best, described image intelligent treatment facility is also controlled external equipment automatically and is made corresponding alarming processing.
Best, the intercommunication of described image intelligent treatment facility and described IVSS Platform Server, described IVSS Platform Server comprises by the information that network interface sends to described image intelligent treatment facility: order data, digital audio-frequency data, control interface output information that all configuration parameters of described image intelligent treatment facility, the work order data of control appliance, control The Cloud Terrace rotate.
Best, use the IVSS Platform Server by and the image intelligent treatment facility between intercommunication mutually, can realize functions such as applied environment and system's self-management.Simultaneously, use the IVSS Platform Server by with the video monitoring system terminal between intercommunication mutually, can realize differently authorizing level users to obtain different video contents, thus when guaranteeing remote monitoring, the privacy information in the protection monitoring scene.
Intelligent video monitoring system with secret protection provided by the present invention has following advantage and characteristics:
1) owing to comprise video scrambling coding member in the intellective video monitoring device module, therefore has privacy protection function, can protect the privacy information that relates to effectively, comprise people, interested other target and scene.Simultaneously, can obtain the video content of the different distortion factors by the IVSS Platform Server according to the different visit power level that has.
2) because the image intelligent treatment facility combines with the comprehensive safety defense monitoring system platform software of IVSS intelligent video, constitute complete intelligent video monitoring system with secret protection.By simple software and hardware the enforcement that can finish newly-built system is installed, also can be used on the upgrading to the analog/digital video monitoring system, it is convenient to implement, and compatibility is very strong.
3) the image intelligent treatment facility can automatically lock the moving target in the picture, accurately follows the tracks of, and can ignore simultaneously the influence of the disturbing factors such as shade, rain, snow of animal, the branch that shakes, cloud, reduces alarm rate significantly.And this equipment has automatic feature shoot function, so not only can invade the scene by complete documentation, can also obtain invador's high definition photo.
4) intelligent video monitoring system has and does not have fatigue, do not have carelessness and continual characteristics, reduces the demand to the operator on duty significantly, has reduced cost of labor.In addition, system is very high to the intellectual analysis and the processing capacity reliability of picture, has reduced the dependence of external aiding sensors, has further reduced false alarm rate, makes to realize that alarm automatically, the interlock integrated safe service of receiving a crime report becomes possibility.
5) the video monitoring system terminal can adopt remote diagnosis, maintenance, upgrading, monitoring and management long-range, concentrated, that automated manner is finished the whole leading portion video monitoring equipments of system.
Description of drawings
Fig. 1 is for having the structural representation of the intellective video monitoring device module of privacy protection function among the present invention;
Fig. 2 is for having the structural representation of the intelligent video monitoring system of secret protection among the present invention;
Fig. 3 is the functional block diagram of image intelligent treatment facility among the present invention;
Fig. 4 is video scrambling coding member process chart among the present invention;
Fig. 5 is for having the subscriber authorisation process chart of key among the present invention;
Fig. 6 is not for there being user's process chart of key among the present invention;
Embodiment
Below, introduce embodiments of the present invention with reference to the accompanying drawings.
Figure 1 shows that the intellective video monitoring device module 101 that has privacy protection function among the present invention.This intellective video monitoring device module 101 comprises: input module 110, output module 120, image intelligent treatment facility 130, data/signaling transport module 140 and power module 150.Wherein, input module 110 is used to obtain the on-the-spot various information of monitoring, comprises image unit 111, sound recording device 112 and external all types of intrusion transducer 113.Image unit 111 for example is one or several video camera cloud mirror system, is used to gather vision signal.Sound recording device 112 for example comprises microphone, is used to gather audio signal.External intrusion transducer 113 is used for other various information of collection site.Output module 120 is external alarm interlocking equipments, comprises for example alarm lamp, loud speaker, fire-fighting spraying equipment etc.When image intelligent treatment facility (SmartTrack) 130 is used to control input module 110, output module 120 operate as normal, mainly be that various input informations are carried out intellectual analysis and processing, the described intellectual analysis that image intelligent treatment facility 130 is carried out and handle can provide the complete identification result of the anomalous event that monitored scene takes place, do not need this complete identification result is carried out reprocessing, this people is whole to assert that the result just can provide the complete information relevant with described anomalous event.Data/signaling transport module 140 can be via the data/signaling communication between data network (such as the Internet, local area network (LAN), wireless network, private network etc.) realization image intelligent treatment facility 130 and the video monitoring system terminal.
As shown in Figure 1, image intelligent treatment facility 130 comprises three parts: field signal acquisition unit 131, this unit are used to receive the information of input module 110 inputs, and the analog information of being accepted is carried out the A/D conversion, to provide digital signal, so that carry out subsequent treatment; Intellectual analysis processing unit 132, this unit is analyzed the order that field data and remote monitoring end send, and makes Intelligent treatment according to analysis result; Video service unit 133, this unit are used to realize system management, incident management, communication data processing, audio, video data flow management, audio coding decoding and video scrambling encoding function.
As mentioned above, intellective video monitoring device module 101 self has analysis and the disposal ability at anomalous event among the present invention, thereby when anomalous event takes place, can make respective handling automatically and give a warning, and send corresponding information to IVSS Platform Server 20, thereby removed monitoring client and operating personnel's thereof operating pressure, guaranteed to take place the accuracy of anomalous event simultaneously, eliminated the possibility that the mistakes and omissions anomalous event takes place.
Requirement at the real-time effectiveness of intelligent video monitoring, field signal acquisition device 131 is acquired signal in real time, including, but not limited to, image unit 111 and sound recording device 112 are gathered the audio frequency and video analog signal in real time, utilize other detailed information of outer sensor 113 collection sites simultaneously, such as temperature, humidity, atmospheric pressure etc.
Image intelligent treatment facility 130 can be to carrying out intellectual analysis and processing from the various input informations of input module 110 with from the information of remote terminal, and scramble relates to the video content of privacy information.
Figure 3 shows that the functional block diagram of image intelligent treatment facility 130, comprise: field signal acquisition unit 131, comprise video signal collective member, audio signal sample member and sensor information acquisition member, be used to receive the information of described input module input, and the analog information that is received is carried out A/D change, to provide digital signal, so that carry out subsequent treatment; Intellectual analysis processing unit 132 comprises moving object detection member and pyrotechnics detection means, to finish moving object detection and pyrotechnics measuring ability; Video service unit 133, comprise system management member, incident management member, communication data processing member, audio and video data streams management component, audio coding decoding member and video scrambling coding member, to finish system management, incident management, communication data processing, audio, video data flow management, audio coding decoding and video scrambling encoding function.
Moving object detection is used to realize target identification and classification, moving target warning, motion target tracking, PTZ tracking, feature shooting automatically, moving target behavior detection, flow detection, detection, legacy/functions such as stolen quality testing survey crowd.
The pyrotechnics detection means is used to realize Smoke Detection and functions of flame detection.The system management member is used to receive relevant task way scheduling configuration parameter, is responsible for the complete machine task scheduling; Management such as remote upgrade restarts; The heartbeat task management; The audio video synchronization periodic duty is differentiated video and is had or not, and produces video and has or not incident; IO, remote-controller data collection period task; Should detect trial affair (internal memory and the test of outside total interface); Network protocol stack management etc.
The incident management member is used to receive incident and the various configuration parameter that each module of this machine produces, and produces various interlock actions according to the interlock prediction scheme, according to the configuration that incident is uploaded Case Number is uploaded, and receives or return configuration parameter.
Communication data processing member (comprising network interface, serial ports and HPI mouth) is used to receive an interface communication data that receives and the data that each module need send and finishes the communications reception data parsing, communication sends packing data, user authority management, differentiation functions such as (maximum 8 users).
The audio and video data streams management component is used to receive audio and video data streams and Control Parameter, be connected and resist port audio and video data streams is sent to each network interface, accepts or returns configuration parameter, and the audio and video data streams of playing is delivered to physical layer interface.
The audio coding decoding member is used to receive voice data and encoding and decoding configuration parameter, controls encoding-decoding process according to configuration parameter, and codec data is sent to the data stream management module.
Video scrambling coding member is used for receiving video data and coding configuration parameter, and difference detected target of scramble and scene according to configuration parameter control encoding-decoding process, are sent to coded data the data stream management module more then earlier.
Figure 4 shows that video scrambling coding member process chart among the present invention, step is as follows:
Step 401: frequency domain transform, be used for the video data that receives is carried out frequency domain transform, can realize by DCT or wavelet transformation.
Step 402: produce pseudo noise, these pseudo noises can directly generate by pseudo-random sequence generator, also can produce for example dimensional Logistic mapping by some algorithmic functions.Simultaneously, the key value that produces above-mentioned random noise is encrypted, encryption can be passed through RSA, and conventional ciphers such as DSA are learned algorithm and realized, also can realize by some watermarking algorithms, as described key value is embedded in the disclosed carrier as watermark information.Key after the encryption needs severe keeping, and can send the authorized person when needed to.
Step 403: the frequency coefficient in the corresponding step 401 of mark and selected zone, by the pseudo noise that the frequency coefficient of mark stack step 402 is produced, should the regional purpose of selection to reach scramble.Process to the frequency coefficient superimposed noise is the process that is embedded in watermark at this frequency domain, and this watermark is the pseudo noise that step 402 produces.Watermarked is to realize by general open fire impression method.
Step 404: video coding, according to configuration parameter, carry out video coding with the scramble processed video, with output code flow.
In the step 403, described open fire seal embedding formula is:
f′＝f+α·w
Wherein, f is the frequency coefficient of described mark, and α is the embedment strength of watermark, and w is described pseudo noise, and f ' is the frequency coefficient after watermarked.
In the step 403, by regulating the value of α, the scramble degree or the distortion factor that can the control chart picture.
Figure 2 shows that the intelligent video monitoring system with secret protection of embodiments of the present invention, comprising: intelligent in-situ monitor unit 10, IVSS Platform Server 20 and video monitoring system terminal 30.
Intelligent video monitoring system according to embodiments of the present invention, intelligent in-situ monitor unit 10 comprises one or more intellective video monitoring device modules 101, should can be placed on the on-the-spot interior suitable control point of monitoring by (these) intellective video monitoring device module 101, be used to obtain field data and carry out intellectual analysis, and notice IVSS Platform Server 20 when improper incident takes place is so that handle accordingly.
Described IVSS Platform Server 20 is used to realize reception, analysis and the processing of the configuration of intellective video monitoring device module 101 and maintenance, video data, sensor data information and image intelligent treatment facility 130 intellectual analysis results, warning information are realized demonstration, storage, playback and retrieval to all types of data of far-end.
Described IVSS Platform Server 20 also is used to realize different verification process of authorizing the level user, finishes the decoding deciphering management at difference mandate level user, and step is as follows:
(1) video decode is decoded the scramble code stream of input;
(2) key that has according to the user judges whether the user belongs to the authorized person, if then carry out step (3), otherwise leaps to step (4);
(3) decipher earlier according to the key that has, recover described key value, then the pseudo noise that produces by these key values, in conjunction with the watermark extracting algorithm, remove pseudo noise by from the frequency coefficient of scramble, extracting watermark, reaching, thereby recover original frequency domain data;
(4) frequency coefficient is carried out inverse transformation, to recover original video frame images and to show this video.
Figure 5 shows that the subscriber authorisation process chart that has key among the present invention, step is as follows:
Step 501: video decode, the scramble code stream of input is decoded.
Step 502: according to the advanced deciphering of the key that has, recover described key value, produce pseudo noise by these key values then.
Step 503: the frequency coefficient unrest that is inverted, promptly the pseudo noise that produces according to step 312 in conjunction with the watermark extracting algorithm, removes pseudo noise by extracting watermark from the frequency coefficient of scramble, reaching, thereby recovers the purpose of original frequency domain data.
Step 504: frequency coefficient is carried out inverse transformation, to recover original video frame images.
Step 505: video shows, promptly shows the video that receives.
Figure 6 shows that does not have the subscriber authorisation of key process chart among the present invention, step is as follows:
Step 601: video decode, the scramble code stream of input is decoded.
Step 602: frequency coefficient is carried out inverse transformation, to recover original video frame images.
Step 603: video shows, promptly shows the video that receives.
Described IVSS Platform Server 20 also comprises a data memory cell 202, is used to store the scramble data that each control point sends, and carries out the inquiry of historical data and evidence obtaining in order to authorized user.
Described video monitoring system terminal 30, comprise the PC 301 that is connected on the IVSS Platform Server, the PC 302, the mail server 303 that link to each other by the Internet or other webserver, the mobile phone 304, the portable personal digital processor (PDA) 305 that link to each other with server by cordless communication network.Described video monitoring terminal 30 can receive the warning message that IVSS Platform Server 20 sends, and notifies the user to do further processing.
If video monitoring system terminal 30 is the PCs 301 that are connected on the IVSS Platform Server 20, or the PC 302 that links to each other with server by the Internet or other network, then IVSS Platform Server 20 can be when receiving the warning information that comes from intellective video monitoring device module 101, transmit on-the-spot audio/video data stream by network to video monitoring system terminal 30, and the intellectual analysis result that in this data flow, superposes.
If IVSS Platform Server 20 links to each other with mail server 303, then when warning information occurs, IVSS Platform Server 20 sends to the warning information or the intellectual analysis result's that superposeed the audio/video data form with Email in the E-mail mailbox of user in the mail server.
Best, described video monitoring system terminal 30 is mobile phone 304 or PDA 305, then described IVSS Platform Server sends packet by cordless communication network to terminal, and this packet is the alarm signal or the intellectual analysis result's that superposeed an audio/video data information.
The user also can be at any old place in the world, arbitrary the computer from the Internet or the miscellaneous equipment of access network, IP address, user ID, password and authorization key by IVSS Platform Server 20 insert IVSS Platform Server 20, and by the next instantaneous safety state of initiatively checking each control point of watch-list, perhaps check the historical record image and the Intelligent treatment result of each control point in the server database, do not limit the remote monitoring of distance in advance.
In addition, IVSS Platform Server 20 can be safeguarded intellective video monitoring device module 101 by Asynchronous Serial Interface RS232, also can carry out parameter and state configuration, and control it and work in and deploy troops on garrison duty or withdraw a garrison state intellective video monitoring device module 101.
According to embodiments of the present invention, user's deciphering of decoding is managed (not shown) and is combined in described video scrambling coding member and the IVSS Platform Server 20, has constituted a complete intimacy protection system.Above-mentioned intimacy protection system is to use a conditional access control technology to protect privacy.Consistent with conditional access control, above-mentioned intimacy protection system can control chart as the distortion factor of detail section.Especially, it allows the part of every frame video content by scramble.Additionally, each different access level has different encryption keys.For example, detected people and other targets can be by scrambles in the Same Scene, and background is not by scramble.Scramble can be applied in the encoding block corresponding to area-of-interest selectively.In addition, by random, can control the distortion factor of protection image at different yardsticks or quantification stratification.Under supervisory control system, people and target as car, can not be identified like this, but scene is still very clear.In order to protect people or the target in the scene, encryption key needs preserve under severe control, but the unrest that can selectively be inverted when authorizing, to guarantee identifier and target.
Described conditional access control technology is used the two-stage scramble: one side scramble interesting areas, corresponding first secret key encryption of key value; Scramble entire image on the other hand, corresponding key value is with second secret key encryption.Like this, the person of peeping can not access system in video data.In addition, the operator of supervisory control system is owing to have second key, can check that scene but can not discern existing people or target fully.In described system, have only the people who has two keys simultaneously under undistorted situation, to browse whole scene, comprise people's face or other interested target in the scene.
According to embodiments of the present invention, the image intelligent treatment facility 130 in the intellective video monitoring device module 101 has two kinds of operating states, and a kind of is the state of deploying troops on garrison duty, and another kind is the state of withdrawing a garrison.The user can directly be configured the operating states of image intelligent treatment facility 130 and switches by IVSS Platform Server 20, also can carry out the setting and the switching of operating state by the data communication between all types of video monitoring system terminals 30 and the IVSS Platform Server 20.
The core of system is an image intelligent treatment facility 130, and it can carry out intellectual analysis and processing to various input informations, will be referred to the content scramble of privacy simultaneously.IVSS can safeguard image intelligent treatment facility 130 by Asynchronous Serial Interface RS232, also can carry out parameter configuration and state configuration, controls it and works in and deploy troops on garrison duty or withdraw a garrison state.
When image intelligent treatment facility 130 works in when deploying troops on garrison duty state, field signal acquisition unit 131 carries out the A/D conversion from the video data that input module 110 receives on-site supervision in real time, sends the digital signal after the conversion to intellectual analysis processing unit 132 and carries out intellectual analysis.
What video camera was taken is a static relatively background, and when shooting picture changed, intellectual analysis processing unit 132 carried out the target test.The target test mainly is to detect those pixels that do not conform to background model in the present frame, just extracts the foreground target of present frame after they are linked up.This target detection realizes by for example gauss hybrid models method, frame difference method and dynamic self-adapting background subtraction method scheduling algorithm.
After detecting target, 132 pairs of targets of intellectual analysis processing unit are followed the tracks of.Target following is by setting up the corresponding relation between frame and the frame, carries out similitude then and lives relatively that template matches realizes, this target following for example is that the frame track algorithm by Kalman filter method, standard waits and realizes.
After having finished target detection and having followed the tracks of, intellectual analysis processing unit 132 can obtain basic data information such as the position, size, color, shape, speed, direction, movement locus of target, utilizes these information intelligent analysis and processing unit 132 automatically tracking target to be carried out type identification and behavior identification.Type identification is for example utilized SVMs, linear classifier to wait and is realized.Behavioural analysis is the information that obtains in comprehensive utilization target detection, tracking, the classification, and whether analyze has " incident " that meet predefined alarm conditions in the memory (not shown) that is kept at intellectual analysis processing unit 132 to take place.According to the difference of using, the content of behavioural analysis also is not quite similar, and as under the detection case of pacing up and down, mainly is the position and the movement locus of evaluating objects, and under the situation that legacy detects, mainly is size, shape and the hall duration of evaluating objects.
If there be " incident " that meet alarm conditions to take place, then intellectual analysis processing unit 132 sends warning information to IVSS Platform Server 20, and intellectual analysis processing unit 132 can be made the various Intelligent treatment under the different alarm situations according to different parameter configuration simultaneously.Intellectual analysis processing unit 132 can be realized the interlock control of external alarm equipment by No. 4 relays alarm Output Interface Control output module 120; Can start video recording,, target be carried out PTZ follow the tracks of feature shooting etc. by the rotation of Asynchronous Serial Interface RS485 control The Cloud Terrace, the change of camera state; Also can receive the instruction of IVSS Platform Server 20, start that real-time audio/video is browsed, real-time audio intercommunication, audio broadcasting etc.
Image intelligent treatment facility 130 works in when withdrawing a garrison state, is equivalent to be in holding state.Image intelligent treatment facility 130 is not analyzed field data at this moment, but can accept the instruction of IVSS Platform Server 20, and according to the real-time audio/video data transmission of instruction startup, realize browsing of 30 pairs of monitoring of video monitoring system terminal live video information, also can realize the audio frequency intercommunication between the scene of monitoring and the video monitoring system terminal 30.Under the state of withdrawing a garrison, image intelligent treatment facility 130 can receive the instruction from IVSS Platform Server 20, reenters the state of deploying troops on garrison duty.
Image intelligent treatment facility 130 also can receive the data of external intrusion transducer 113 inputs by 4 way switch amount input interfaces, carries out functional analysis, has judged whether that warning information occurs.
Image intelligent treatment facility 130 connects built-in 2 port one 0M/100M self adaptation Ethernet switches by 10M/100M self adaptation Ethernet interface, by the total data communication between Internet realization VSS Platform Server 20 and the image intelligent treatment facility 130.
Introduce various functions and the application that has the intelligent video monitoring system of secret protection according to the present invention below.
1, secret protection
Comprise video scrambling coding member in the Video service unit of intellective video monitoring device module of the present invention, carry out the video scrambling encoding process by the video data that will from monitor the scene, receive, thereby will be referred to the information scramble of privacy.Described video scrambling coding member and user in the IVSS Platform Server deciphering of decoding is managed and is combined, and has constituted a complete intimacy protection system, can realize privacy protection function.
Secret protection can be applicable to the protection of information such as people's face, car, animal, scene.Only when having access rights, (have key), could check relevant privacy information by the IVSS Platform Server; Otherwise, can only obtain the video content of distortion from the IVSS Platform Server.
2, moving target identification and classification
Intelligent video monitoring system of the present invention can be discerned the character and the classification of different target intelligently.After the basic data information of detection and extraction target, event checking module is carried out type identification to target, accurately distinguishes people, car, animal etc.
Moving target identification and classification can be applicable to the recognition of face field.After detection identifies human body, obtain the human body head photo, and judge according to biological characteristic whether it is the full face of people's face, if then compare with the face template of predefined detection target automatically, thereby identify its identity.
Moving target identification and classification also can be applicable to vehicle license identification field: after identifying target and being vehicle, judge type of vehicle automatically, and the identification license number.
3, moving target warning
Intelligent video monitoring system of the present invention provides a graphic user interface (GUI), and the user can make up setting by mouse, keyboard etc. to warning conditions such as the scope in Security alert district, the type of target (as: people, car, animal etc.), target travel direction, target speeds on local monitoring terminals or remote monitoring terminal.Intelligent video monitoring system detects object appearing in the video pictures, only just sends alarm when having the incident that meets the warning condition to take place.
In conjunction with the identification and the classification of moving target, moving target warning can be used for realizing also can using fields such as non-stopping a train at a target point detects, route or travel by vehicle defines based on the gate inhibition or the vigilance performance of human identity or type of vehicle, license number.
4, motion target tracking
Intelligent video monitoring system is monitored video image incessantly, when detecting the target that meets predefined characteristic, the intellectual analysis processing unit is determined position, the size of target, on the local monitoring terminals of intelligent video monitoring system or remote monitoring terminal with the form lock onto target of prompting frame, and the movement locus of extraction target, the form with curve on local monitoring terminals or remote monitoring terminal shows.
When occurring a plurality of qualified target in the video pictures, intelligent video monitoring system keeps comprising the tracking picture of target complete automatically, and shows the movement locus of each target.
Motion target tracking both can be applicable to the protections of warning region on a large scale such as boundary line, customs, warehouse, military restricted zone, embassy, interior declaration form position, and the crowd is dense, the supervision of the public place of picture complexity also to can be applicable to road, square, station, harbour, airport etc.
5, PTZ follows the tracks of
Intelligent video monitoring system of the present invention extracts the positional information of target, monitors the camera lens The Cloud Terrace automatically, continues the focusing moving target, makes target be positioned at the center of image frame all the time; Intelligent video monitoring system can also be adjusted focal length of camera, obtains the image of target close shot, distant view.Like this, intelligent video monitoring system realizes that by the control to video camera cloud mirror system the PTZ of moving target follows the tracks of.
Can control multiple cameras automatically by the image intelligent treatment facility according to intelligent video monitoring system of the present invention and same target is carried out multi-angle follow the tracks of synchronously, to obtain the clear more comprehensive monitored picture and the video recording of important goal; Also can control multiple cameras same target is carried out the relay-type track up in visual range separately, to obtain the monitored picture and the video recording of important goal full range of movement.
On the video monitoring system terminal, can preferentially access the picture that alarm event occurs come automatically according to intelligent video monitoring system of the present invention.When being in synchronous tracking mode of operation according to intelligent video monitoring system of the present invention, centralized displaying can be closed on the associated camera picture automatically by system; When being in the relay tracking pattern according to intelligent video monitoring system of the present invention, this system can be presented at target picture on the viewing area of appointment automatically one by one according to the order of video camera relay.
6, feature is taken automatically
Can controlling automatically video camera cloud mirror system according to intelligent video monitoring system of the present invention, so that target is carried out head, whole body, close shot and 4 grades of feature track ups of distant view, when finding a plurality of target target is carried out feature shooting one by one, system controls video camera shortening camera lens again and changes the pan-shot mode over to then.Overall process that so not only can recording events, but also the announcement clear pictures that can obtain target is as clue and evidence.
7, goal behavior detects
The target basic data information that intelligent video monitoring system utilizes the intellectual analysis processing unit to extract can realize the goal behavior analysis.As to detect target be man-hour, and intelligent video monitoring system utilizes the position of target, and information such as size can realize the detection that falls down to the ground, and utilizes the detection that can realize pacing up and down of the information such as track, speed of target; When detecting target and being car, intelligent video monitoring system utilizes information such as the direction of motion can realize that vehicle drives in the wrong direction and detects.
8, busincess intelligence is used
Busincess intelligence is used and is comprised troop's length detection, and consumer behaviour is followed the tracks of, flow detection, crowded detection etc., and these intellectual analysis result can help businessman to realize the optimization configuration of commodity.
Busincess intelligence is used and is also comprised building management, for example adjusts illumination, heating, air-conditioning system etc. when the no one automatically.
9, article detect
Article detect two kinds of main application modes, and the one, stolen quality testing is surveyed, and a kind of is that legacy detects.
Stolen quality testing need when surveying the user by the video monitoring system terminal in advance with the warning region of static monitoring articles, be removed duration and the eligible alarm event preservation video recording duration before taking place and be provided with to the image intelligent treatment facility.Intelligent video monitoring system of the present invention will be alarmed and the video recording of preservation incident complete procedure automatically automatically to the incident that meets the condition of setting, and show the original position of still life that is moved by prompting frame.Still life detects the automatic monitoring that is applicable to jewelry, historical relic, showpiece etc.
Legacy need when detecting the user by the video monitoring system terminal will forbid placing article zone, article size, park duration and meet the preservation video recording duration of alarm conditions incident before taking place and be provided with to the image intelligent treatment facility.Intelligent video monitoring system will be to the video recording of alarm and the incident of preservation complete procedure automatically of the incident that meets the condition of setting, and shows the position of leaving over article by prompting frame.
10, pyrotechnics detects automatically
Intelligent video monitoring system of the present invention is according to color of object, time domain variation, time domain periodicity, spatial variations, area extension and information such as time domain continuation, growth property, automatically detect flame and smog at video scene inner region branch, in the position of display frame subscript naked light flame and smog, and send warning information according to threshold values such as the smog area size of prior appointment, area of flame sizes; Intelligent video monitoring system also can detect the action of smoking in the monitored picture automatically.When having fire to take place, intellective video monitoring device module and the interlock of miscellaneous cause transducer are sent the interlock signal to spraying system of fire fighting, have formed comprehensive, reliable fire-fighting system, can prevent or slow down fire spreading effectively.Automatically pyrotechnics detects the application demand that can satisfy indoor fire safety, outdoor architecture fire prevention, chemical plant or warehouse, forest fire protection.
11, on-the-spot warning
When having the alarm situation to occur, intelligent video monitoring system can be play the warning sound in the memory that is stored in the image intelligent treatment facility in advance automatically, also can control by the video monitoring system terminal, the warning sound of storage and uniform in the displaying video supervisory control system terminal perhaps carries out the speech talkback between intellective video monitoring device module and the video monitoring system terminal.Can warn monitoring objective to break off an action immediately like this, to stop the generation of " incident ".
12, video demonstration, storage, playback and the search function of video monitoring system terminal
The video monitoring system terminal receives the information that the intellective video monitoring device module of scramble sends via the IVSS Platform Server, realize that terminal shows and storage, except that video data, the video monitoring system terminal also demonstrates the intellectual analysis and the result of image intelligent treatment facility, as superimposed motion target location prompting frame, path curves, pyrotechnics position indicating frame etc.The all right playback video information of user is watched repeatedly in addition.The video monitoring system terminal is stored in the warning information that each intellective video monitoring device module sends in the database, and authorized user can be when needed or by the time, or press event type, or by the monitoring scene these information are retrieved.
13, applied environment management
The condition of work that the intellective video monitoring device module can realize automatically detects and alarm.The 101 integrality self checks of intellective video monitoring device module can prevent to forge the generation that monitor video signal, image comparison are spent situation such as low, that vision signal intensity is weak excessively, pick-up lens is covered, lose vision signal, The Cloud Terrace is out of control, the burnt length of camera lens is out of control.Image intelligent treatment facility fault self-checking does not have the generation of situations such as response, cpu load is too high, device temperature is too high, partial circuit is out of control to prevent equipment.Detect communication quality during data/signaling self check and whether meet minimum job requirement.
The intellective video monitoring device module can also be realized monitoring scene adaptive and alarm automatically.The high-brightness environment under the suitable sunlight of intellective video monitoring device module and the video monitoring of the low irradiance environment at night, the video monitoring that is fit to infrared illumination, can get rid of the influence of various weather disturbing factors, the video monitoring service of 24 hours whole days, full weather is provided reliably.
14, system's self-management
Can carry out online remote upgrade to the image intelligent treatment facility, each member is carried out online Remote configuration, and its monitored object can carry out remote loading.
Each intellective video monitoring device module is all supported service quality (QoS) control, Monitoring Data transmission network performance dynamically, and optimize and revise video, audio data stream, transmission quality that can the dynamically adapting for data network provides best monitoring video laser propagation effect.
The above; being preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, is to be understood that; the present invention is not limited to implementation as described herein, and these implementation purpose of description are to help those of skill in the art to put into practice the present invention.Any those of skill in the art are easy to be further improved without departing from the spirit and scope of the present invention and perfect, therefore the present invention only is subjected to the restriction of the content and the scope of claim of the present invention, and its intention contains all and is included in alternative and equivalent in the spirit and scope of the invention that is limited by claims.
Claims (20)
1, a kind of intellective video monitoring device module, described module comprises: input module, output module, image intelligent treatment facility, data/signaling transport module and power module; Described image intelligent treatment facility comprises: collection in worksite unit, intellectual analysis processing unit and Video service unit is characterized in that:
Described Video service unit comprises system management member, incident management member, communication data processing member, audio and video data streams management component, audio coding decoding member and video scrambling coding member; Wherein, described video scrambling coding member is used for the privacy information of scramble people face, car, animal, scene, and the video of scramble is carried out video coding, with output code flow.
2, intellective video monitoring device module according to claim 1 is characterized in that, the processing method of described video scrambling coding member comprises the steps:
Steps A, frequency domain transform are used for the video that receives is carried out frequency domain transform, realize by DCT or wavelet transformation;
Step B, generation pseudo noise;
The zone that step C, scramble are selected;
Step D, video coding are used for the scramble processed video is carried out video coding, with output code flow.
3, intellective video monitoring device module according to claim 2 is characterized in that, described step B is: by pseudo-random sequence generator or some chaotic maps functions, generate a series of pseudo random numbers; Simultaneously, the key value that produces described random noise is encrypted, the key after the encryption needs severe keeping, and can send the authorized person when needed to.
4, intellective video monitoring device module according to claim 3 is characterized in that, described encryption or by RSA, the cryptographic algorithm that DSA is traditional is realized, perhaps realizes by watermarking algorithm.
5, intellective video monitoring device module according to claim 2, it is characterized in that, described step C is: the frequency coefficient in the corresponding steps A of mark and selected zone, the pseudo noise that the step B that produces by the frequency coefficient stack to mark produces is to reach the purpose in this selection zone of scramble.
6, intellective video monitoring device module according to claim 5, it is characterized in that described step C is: be embedded in the process of watermark at described frequency domain, this watermark is the pseudo noise that step B produces, watermarkedly realize that open fire seal embedding formula is by the open fire impression method:
f′＝f+α·w
Wherein, f is the frequency coefficient of described mark, and α is the embedment strength of watermark, and w is described pseudo noise, and f ' is the frequency coefficient after watermarked.
7, intellective video monitoring device module according to claim 6 is characterized in that, the scramble degree or the distortion factor of the α control chart picture of open fire seal embedding formula among the described step C.
8, a kind of adopt as claim 1～7 arbitrary as described in the intelligent video monitoring system of intellective video monitoring device module, it is characterized in that described intelligent video monitoring system comprises: intelligent in-situ monitor unit, IVSS Platform Server, video monitoring system terminal;
Described intelligent in-situ monitor unit, comprise one or more described intellective video monitoring device modules, described intellective video monitoring device module is placed on the on-the-spot interior different monitoring point of monitoring, be used to obtain field data and carry out intellectual analysis, Intelligent treatment, scramble relates to the video content of privacy information simultaneously;
Described IVSS Platform Server, under the management of IVSS platform software, described IVSS Platform Server is realized the intellectual analysis result of multichannel far-end audio data, video data, sensor data information, above-mentioned image intelligent treatment facility, reception, analysis and the processing of warning information, realization realizes configuration and maintenance to the described intellective video monitoring device module of far-end to demonstration, storage, playback and the retrieval of all types of data of far-end; With
Described video monitoring system terminal comprises the PC and the network that are connected on the IVSS Platform Server, is used to receive the warning information from the IVSS Platform Server, and notifies the user to do further processing.
9, the intelligent video monitoring system with secret protection according to claim 8; it is characterized in that; described IVSS Platform Server also comprises a data memory cell, is used to store the data that each control point sends, and carries out the inquiry of historical data and evidence obtaining in order to the user.
10, according to Claim 8 or 9 described intelligent video monitoring systems with secret protection; it is characterized in that; described IVSS Platform Server also comprises a different verification process of authorizing the level user, and realizes the decoding deciphering management at difference mandate level user, and step is as follows:
(1) video decode is decoded the scramble code stream of input;
(2) key that has according to the user judges whether the user belongs to the authorized person, if then carry out step (3), otherwise leaps to step (4);
(3) decipher earlier according to the key that has, recover described key value, then the pseudo noise that produces by these key values, in conjunction with the watermark extracting algorithm, remove pseudo noise by from the frequency coefficient of scramble, extracting watermark, reaching, thereby recover the purpose of original frequency domain data;
(4) frequency coefficient is carried out inverse transformation, to recover original video and to show this video content.
11, the intelligent video monitoring system with secret protection according to claim 8 is characterized in that, described network comprises the Internet and cordless communication network; Wherein, described the Internet links to each other with PC or mail server; Described cordless communication network links to each other with mobile phone or portable personal digital processor.
12, the intelligent video monitoring system with secret protection according to claim 8; it is characterized in that; described video monitoring system terminal is the PC that is connected on the described IVSS Platform Server; or the PC that links to each other with server by the Internet or other network; then described IVSS Platform Server is when having warning information to occur; transmit on-the-spot audio/video data by network to authorization terminal, and stack intellectual analysis result.
13, the intelligent video monitoring system with secret protection according to claim 10; it is characterized in that; described IVSS Platform Server links to each other with mail server; then when warning information occurs, the IVSS Platform Server sends to the warning information or the intellectual analysis result's that superposeed the audio/video data form with Email in the E-mail mailbox of authorized user in the mail server.
14, according to Claim 8 or 12 described intelligent video monitoring systems with secret protection; it is characterized in that; described video monitoring system terminal is mobile phone or PDA; then described IVSS Platform Server sends packet by wireless network to terminal, and this packet is the audio/video data information of the alarm signal or the intellectual analysis result's that superposeed different authorized user levels.
15, the intelligent video monitoring system with secret protection according to claim 8 is characterized in that, user or at any old place in the world arbitrary computer from the Internet; Perhaps the miscellaneous equipment of access network inserts the IVSS Platform Server by IP address, user ID, password and the authorization key of IVSS Platform Server, and initiatively checks the instantaneous safety state of each control point by watch-list; Perhaps check the historical record image and the Intelligent treatment result of each control point in the server database, do not limit the remote monitoring of distance in advance.
16, a kind of intelligent video monitoring method with intelligent video monitoring system of secret protection is characterized in that, said method comprising the steps of:
(1) in one or more monitoring scene, obtains the on-the-spot various information of described monitoring;
(2) by the image intelligent treatment facility data of described input module input are carried out intellectual analysis and processing, and the video scrambling encoding process is carried out in the video area that will be referred to privacy information;
(3) voice data behind analysis and result, the coding, code stream and the warning information behind the scramble are uploaded to described IVSS Platform Server by the Network Transmission interface together;
(4) described IVSS Platform Server is received or initiatively obtain relevant information, classify and does and correspondingly handle, send warning information to described video monitoring system terminal, the control intellective video monitoring device module of giving an order is realized linking and is alarmed.
17, intelligent video monitoring method according to claim 16, it is characterized in that, institute carries out intellectual analysis and processing comprises target detection, tracking, classification and behavioural analysis, with realize that target identification and classification, moving target warning, motion target tracking, PTZ follow the tracks of, feature shootings automatically, moving target behavior detection, flow detection, crowdedly detect, the function of legacy/stolen quality testing survey, pyrotechnics detection.
18, intelligent video monitoring method according to claim 16 is characterized in that, described image intelligent treatment facility is also controlled external equipment automatically and made corresponding alarming processing.
19, intelligent video monitoring method according to claim 18, it is characterized in that, the intercommunication of described image intelligent treatment facility and described IVSS Platform Server, described IVSS Platform Server comprises by the information that network interface sends to described image intelligent treatment facility: order data, digital audio-frequency data, control interface output information that all configuration parameters of described image intelligent treatment facility, the work order data of control appliance, control The Cloud Terrace rotate.
20, the intelligent video monitoring system with secret protection according to claim 19 is characterized in that, use the IVSS Platform Server by and the image intelligent treatment facility between intercommunication mutually, can realize functions such as applied environment and system's self-management; Simultaneously, use the IVSS Platform Server by with the video monitoring system terminal between intercommunication mutually, can realize differently authorizing level users to obtain different video contents, thus when guaranteeing remote monitoring, the privacy information in the protection monitoring scene.
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