CN102857788A - Video quality diagnostic system and video quality diagnostic method - Google Patents
Video quality diagnostic system and video quality diagnostic method Download PDFInfo
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Abstract
The invention relates to the field of wireless communication techniques and cloud computing techniques, and discloses a video quality diagnostic system. The system comprises a mobile terminal video acquiring subsystem and a video quality diagnostic subsystem, wherein the mobile terminal video acquiring subsystem is used for acquiring video data, subsequently encoding the video data and transmitting to the video quality diagnostic subsystem, and feeding back a received diagnosis report; and the video quality diagnostic subsystem is used for decoding the received video data and subsequently diagnosing the quality of the video, and transmitting the diagnosis report to the mobile terminal video acquiring subsystem. With the adoption of the system, the problem that the flexibility degree of deploy is limited due to the fact that a traditional video quality diagnostic system depends on a wired communication medium too much is solved by using the wireless communication technique; and meanwhile the sensitivity and the system capacity of the video quality diagnostic subsystem can be increased in combination of the mass data processing ability of the cloud computing technique.
Description
Technical field
The present invention relates to wireless communication technology and cloud computing technology field, particularly relate to a kind of video quality diagnosis system and method.
Background technology
The developing rapidly of field that Large Scale Video Monitoring System is arranged along with construction such as safe city, emergency command, digital urban management, intelligent transportation, peaceful communities.The quantity of video monitoring equipment sharply rises, and quality requirement is also more and more higher.And current, the huge video monitoring equipment of quantity is by manual inspection mostly, and it is to detect software by video quality to finish on the basis of broadband connections that small part is also arranged.
In the manual inspection, the personnel that patrol and examine monitor a plurality of video pictures by monitor screen for a long time, are easy to fatigue, also easy under-enumeration.Appearance based on the video quality diagnosis system of broadband connections has changed the low present situation of traditional Large Scale Video Monitoring System operational efficiency, also alleviates the deficiency of manpower simultaneously.
Adopt distributed frame based on the video quality diagnosis system that the broadband connections medium is arranged.After obtaining vision signal (supporting the digital video signals such as analog video signal/DVR, Streaming Media) from monitor network, system utilizes the video diagnosis server to finish the video diagnostic function, utilize the Web server completing user mutual, utilize database server stores diagnostic result and system configuration.User network condition and deployment scale, demand, above-mentioned each service can adopt one or more server to realize, can concentrate to be deployed in Surveillance center, or be distributed in each branch center.
The video diagnosis server uses video frequency collection card access analog video signal, uses the Internet access digital video signal.The video diagnosis server sends to the user with diagnostic result by Web server, and records for information about in database server.The user can pass through Web page supervisory control system state, carries out information inquiry, statistics, and the diagnosis prediction scheme is set, and service equipment information is carried out the various operations such as system management.
But because existing system relies on wire medium communication, so it disposes the restriction that degree of flexibility has been subject to communication line to a certain extent, system's extendible capacity is not high yet.
Summary of the invention
The technical problem that (one) will solve
The technical problem to be solved in the present invention is: how to solve that conventional video quality diagnosis system depends on the wire communication medium unduly and the limited problem of degree of flexibility in the deployment that causes.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of video quality diagnosis system, described system comprises mobile terminal video acquisition subsystem and video quality diagnostic subsystem, described mobile terminal video acquisition subsystem is used for video data is gathered, then to sending to described video quality diagnostic subsystem behind the described coding video data, and received diagnosis report is fed back; Described video quality diagnostic subsystem is diagnosed video quality after received video data is decoded, and diagnosis report is fed back to described mobile terminal video acquisition subsystem.
Preferably, described mobile terminal video acquisition subsystem comprises video acquisition module, video encoding module, the first video transmission module and diagnostic result feedback module; Wherein,
Described video acquisition module is used for gathering video data;
H.264 described video encoding module is used for utilizing agreement that the video data that collects is carried out real-time coding;
Described the first video transmission module is used for utilizing the video data after RTP and udp protocol will be encoded to send to the video quality diagnostic subsystem by wireless network;
Described diagnostic result feedback module is used for the real-time diagnosis report that receives and record from described video quality diagnostic subsystem, and reports to the police according to described diagnosis report.
Preferably, described video encoding module specifically is used for generating the JNI dynamic link library in Android bottom storehouse in Android operating system encapsulation compiling, thereby realizes the H.264 coding to the video data that collects.
Preferably, described the first video transmission module specifically is used at first sending NAT gateway penetration RTP packet to the video quality diagnostic subsystem, implements mobile gateway and penetrates, and re-uses the video data of udp protocol transmission after coded.
Preferably, described video quality diagnostic subsystem comprises the second video transmission module, video decode module, video quality diagnostic module and abnormality alarm module, wherein,
Described the second video transmission module is used for utilizing RTP and the udp protocol will be from the video data transmitting of mobile terminal video acquisition subsystem to described video decode module;
Described video decode module is the video data of yuv format for the video data decoding of the H.264 form that will receive;
The video quality diagnostic module is used for utilizing computer vision technique that the video data of described yuv format is carried out the video quality diagnosis;
The abnormality alarm module is used for the result of described video quality diagnosis is generated diagnosis report, sends to described mobile terminal video acquisition subsystem.
Preferably, described the second video transmission module specifically is used for utilizing the udp protocol reception from the video data of mobile terminal video acquisition subsystem, and the GetNextPacket () method of then calling the RTPSession class therefrom extracts the RTP packet as the video data that is transferred to described video decode module.
Preferably, described video quality diagnostic subsystem is take the cloud computing platform of ESXi virtual machine as the physical carrier body.
The present invention also provides a kind of video quality diagnosing method, may further comprise the steps:
S1, video data is gathered, then to sending behind the described coding video data;
S2, received video data is diagnosed video quality after decoding, and sent diagnosis report;
S3, received diagnosis report is fed back.
Preferably, step S1 specifically comprises:
S11, collection video data;
S12, utilize H.264 agreement that the video data that collects is carried out real-time coding;
S13, utilize the video data after RTP and udp protocol will be encoded to send by wireless network.
Preferably, step S2 specifically comprises:
The video data decoding of S21, the H.264 form that will receive is the video data of yuv format;
S22, utilize computer vision technique that the video data of described yuv format is carried out the video quality diagnosis;
S23, the result of described video quality diagnosis is generated diagnosis report send.
(3) beneficial effect
Technique scheme has following advantage: the present invention utilizes wireless communication technology to solve that conventional video quality diagnosis system depends on the wire communication medium unduly and the limited problem of degree of flexibility in the deployment that causes, simultaneously the present invention is in conjunction with the mass data processing ability of cloud computing technology, sensitivity and power system capacity that can augmented video quality diagnosis system.
Description of drawings
Fig. 1 is system configuration schematic diagram of the present invention;
Fig. 2 is method flow diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Along with developing rapidly of current development of Mobile Internet technology, wireless access way can satisfy video monitoring system to the requirement of Internet Transmission quality and speed.The present invention combines mobile Internet and these two cutting edge technologies of cloud computing just, is intended to make up a kind of sensitiveer efficient and dispose flexibly video quality diagnosis system.
As shown in Figure 1, the embodiment of the invention provides a kind of video quality diagnosis system, described system comprises mobile terminal video acquisition subsystem and video quality diagnostic subsystem, described mobile terminal video acquisition subsystem is used for video data is gathered, then to sending to described video quality diagnostic subsystem behind the described coding video data, and received diagnosis report is fed back; Described video quality diagnostic subsystem is diagnosed video quality after received video data is decoded, and diagnosis report is sent to described mobile terminal video acquisition subsystem.
In the present embodiment, described mobile terminal video acquisition subsystem comprises video acquisition module, video encoding module, the first video transmission module and diagnostic result feedback module; Wherein,
Described video acquisition module is used for gathering video data; Video acquisition module can intercept the data of video flowing when taking pictures video preview, every acquisition one frame calls corresponding interface function.Wherein in the upper bed boundary of Android, define a video and shown class, be mainly used in showing the image that collects.Android shows that by video class interface is transferred to application layer and shows by Image Rendering on the one hand by the video data of camera collection, on the other hand video flowing is submitted to video encoding module.
H.264 described video encoding module is used for utilizing agreement that the video data that collects is carried out real-time coding;
Described the first video transmission module is used for utilizing RTP(Real-time Transport Protocol, RTP) and UDP(User Datagram Protocol, User Datagram Protoco (UDP)) video data after agreement will be encoded sends to the video quality diagnostic subsystem by wireless network; The first video transmission module is realized in the network data transmission class, communicates by letter with the video quality diagnosis server via the WCDMA mobile network.
Described diagnostic result feedback module is used for the real-time diagnosis report that receives and record from described video quality diagnostic subsystem, and reports to the police according to described diagnosis report, in order to check maintenance for the staff.
In the present embodiment, described video encoding module specifically is used for generating the JNI dynamic link library in Android bottom storehouse in Android operating system encapsulation compiling, thereby realizes the H.264 coding to the video data that collects.Adopt the encoder of X264 to encode, saved the some of complex gain, coding rate is very fast, can be to CIF and the real-time coding of D1 format-pattern.H.264 code stream behind the coding is submitted to network transmission module.
In the present embodiment, described the first video transmission module specifically is used at first sending NAT(Network Address Translators to the video quality diagnostic subsystem, network address translation) gateway penetration RTP packet, implement penetrating of WCDMA mobile gateway, re-use the video data of udp protocol transmission after coded.
In the present embodiment, described video quality diagnostic subsystem is take the cloud computing platform of ESXi virtual machine as the physical carrier body, and the reaction sensitivity of ESXi system take its powerful data-handling capacity as video quality diagnosis system and diagnosis accuracy provide safeguard.The video quality diagnostic subsystem comprises the second video transmission module, video decode module, video quality diagnostic module and abnormality alarm module, wherein,
Described the second video transmission module is used for utilizing RTP and the udp protocol will be from the video data transmitting of mobile terminal video acquisition subsystem to described video decode module;
Described video decode module is the video data of yuv format for the video data decoding of the H.264 form that will receive; One the tunnel is stored as the H.264 video file that can be used for showing shows; Another road gives the video quality diagnostic module further diagnostic process.
The video quality diagnostic module is used for utilizing adaptive learning and computer vision technique, the vision system of simulated human, video data to described yuv format carries out the video quality diagnosis, common device fault and the fault order of severity that video image occurs are made accurate judgement, automatically record all testing results, for example, can be by wavelet transformation and BP neural net, whether detected image is subject to snow noise is disturbed.The user can add up and query history information, and can carry out the statistical analysis of number of faults and failure rate according to different attributes such as camera department, fault type, the fault orders of severity.
The abnormality alarm module is used for the result of described video quality diagnosis is generated local diagnosis report, and sends it to described mobile terminal video acquisition subsystem.
In the present embodiment, described the second video transmission module specifically is used for utilizing the udp protocol reception from the video data of mobile terminal video acquisition subsystem, and the GetNextPacket () method of then calling the RTPSession class therefrom extracts the RTP packet as the video data that is transferred to described video decode module.
As shown in Figure 2, the present invention also provides a kind of video quality diagnosing method, may further comprise the steps:
S1, video data is gathered, then to sending behind the described coding video data;
S2, received video data is diagnosed video quality after decoding, and sent diagnosis report;
S3, received diagnosis report is fed back.
Step S1 specifically comprises:
S11, collection video data;
S12, utilize H.264 agreement that the video data that collects is carried out real-time coding;
S13, utilize the video data after RTP and udp protocol will be encoded to send by wireless network.
Step S2 specifically comprises:
The video data decoding of S21, the H.264 form that will receive is the video data of yuv format;
S22, utilize computer vision technique that the video data of described yuv format is carried out the video quality diagnosis;
S23, the result of described video quality diagnosis is generated diagnosis report send.
As can be seen from the above embodiments, the present invention utilizes wireless communication technology to solve that conventional video quality diagnosis system depends on the wire communication medium unduly and the limited problem of degree of flexibility in the deployment that causes, simultaneously the present invention is in conjunction with the mass data processing ability of cloud computing technology, sensitivity and power system capacity that can augmented video quality diagnosis system.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (10)
1. video quality diagnosis system, it is characterized in that, described system comprises mobile terminal video acquisition subsystem and video quality diagnostic subsystem, described mobile terminal video acquisition subsystem is used for video data is gathered, then to sending to described video quality diagnostic subsystem behind the described coding video data, and received diagnosis report is fed back; Described video quality diagnostic subsystem is diagnosed video quality after received video data is decoded, and diagnosis report is fed back described mobile terminal video acquisition subsystem.
2. the system as claimed in claim 1 is characterized in that, described mobile terminal video acquisition subsystem comprises video acquisition module, video encoding module, the first video transmission module and diagnostic result feedback module; Wherein,
Described video acquisition module is used for gathering video data;
H.264 described video encoding module is used for utilizing agreement that the video data that collects is carried out real-time coding;
Described the first video transmission module is used for utilizing the video data after RTP and udp protocol will be encoded to send to the video quality diagnostic subsystem by wireless network;
Described diagnostic result feedback module is used for the real-time diagnosis report that receives and record from described video quality diagnostic subsystem, and reports to the police according to described diagnosis report.
3. system as claimed in claim 2, it is characterized in that, described video encoding module specifically is used for generating the JNI dynamic link library in Android bottom storehouse in Android operating system encapsulation compiling, thereby realizes the H.264 coding to the video data that collects.
4. system as claimed in claim 2, it is characterized in that, described the first video transmission module specifically is used at first sending NAT gateway penetration RTP packet to the video quality diagnostic subsystem, implements mobile gateway and penetrates, and re-uses the video data of udp protocol transmission after coded.
5. the system as claimed in claim 1 is characterized in that, described video quality diagnostic subsystem comprises the second video transmission module, video decode module, video quality diagnostic module and abnormality alarm module, wherein,
Described the second video transmission module is used for utilizing RTP and the udp protocol will be from the video data transmitting of mobile terminal video acquisition subsystem to described video decode module;
Described video decode module is the video data of yuv format for the video data decoding of the H.264 form that will receive;
The video quality diagnostic module is used for utilizing computer vision technique that the video data of described yuv format is carried out the video quality diagnosis;
The abnormality alarm module is used for the result of described video quality diagnosis is generated diagnosis report, sends to described mobile terminal video acquisition subsystem.
6. system as claimed in claim 5, it is characterized in that, described the second video transmission module specifically is used for utilizing the udp protocol reception from the video data of mobile terminal video acquisition subsystem, and the GetNextPacket () method of then calling the RTPSession class therefrom extracts the RTP packet as the video data that is transferred to described video decode module.
7. such as each described system in the claim 1 ~ 6, it is characterized in that described video quality diagnostic subsystem is take the cloud computing platform of ESXi virtual machine as the physical carrier body.
8. a video quality diagnosing method is characterized in that, may further comprise the steps:
S1, video data is gathered, then to sending behind the described coding video data;
S2, received video data is diagnosed video quality after decoding, and sent diagnosis report;
S3, received diagnosis report is fed back.
9. method as claimed in claim 8 is characterized in that, step S1 specifically comprises:
S11, collection video data;
S12, utilize H.264 agreement that the video data that collects is carried out real-time coding;
S13, utilize the video data after RTP and udp protocol will be encoded to send by wireless network.
10. method as claimed in claim 8 or 9 is characterized in that step S2 specifically comprises:
The video data decoding of S21, the H.264 form that will receive is the video data of yuv format;
S22, utilize computer vision technique that the video data of described yuv format is carried out the video quality diagnosis;
S23, the result of described video quality diagnosis is generated diagnosis report send.
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| CN107809615A (en) * | 2017-10-24 | 2018-03-16 | 北京声迅电子股份有限公司 | Video quality diagnostic device and method |
| CN108377389A (en) * | 2018-04-03 | 2018-08-07 | 北京中智润邦科技有限公司 | Video quality diagnostic device and monitor supervision platform system |
| CN109391844A (en) * | 2018-11-20 | 2019-02-26 | 国网安徽省电力有限公司信息通信分公司 | Video quality diagnosing method and system based on video conference scene |
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