CN105979189A - Video signal processing and storing method and video signal processing and storing system - Google Patents
Video signal processing and storing method and video signal processing and storing system Download PDFInfo
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- CN105979189A CN105979189A CN201610378173.6A CN201610378173A CN105979189A CN 105979189 A CN105979189 A CN 105979189A CN 201610378173 A CN201610378173 A CN 201610378173A CN 105979189 A CN105979189 A CN 105979189A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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Abstract
The invention discloses a video signal processing and storing method and a video signal processing and storing system. After to-be-watched multipath videos are decoded, reduced, and stitched, the multipath videos are recoded to be a compressed video having a format of H.264, and then a client is only required to receive the compressed video, and is used to decode and restore the compressed video to watch the multipath videos before the processing. Transmission bandwidth and decoding operation requirements is reduced to a resource requirement level of one video. Information storage utilization rate of video monitoring is effectively improved, and according to general statistics of video monitoring storage, effective video stream storage time is averagely prolonged by 70% -80%, and therefore effective information is extracted actively, storage investment of a video monitoring system is saved, the valuable video monitoring information is provided for the investigation and the evidence collection, powerful technical support is provided for video monitoring managers during timely scientific decision-making, and popularization and application in the monitoring systems are realized.
Description
Technical field
Patent of the present invention relates to Network Video Surveillance technology, specifically a kind of video frequency signal processing and storage
Method and system.
Background technology
In the epoch that HD video is popular, video monitoring system business is to transmitting and showing multi-channel video picture simultaneously
Processing pressure increasing.Generally the video data of transmission of one line 1080P resolution need 4M/bps～
The network bandwidth of 8M/bps, transmit 16 road 1080P videos needs the network bandwidth of reserved 128M/bps simultaneously.
When observing multiple paths of video images, the computer in current main-stream solves under configuration firmly simultaneously, uses CPU computing solution
During the 1080P resolution video of code H.264 said shank, every machine probably can decode 7～8 tunnels simultaneously.
If transmit multi-path high-definition video image simultaneously, network bandwidth requirements amount is big, can cause figure when transmission bandwidth is inadequate
As Caton phenomenon.Accordingly, client decodes multi-path high-definition video, computer CPU resource occupation mistake simultaneously
Height, easily causes application crash, which greatly limits HD video and promotes, it addition, at video signal
Storage aspect: existing technical scheme is front end camera collection video flow information, completes coding, platform
After receiving the coding information that photographic head is passed back, complete the decoding of video flowing, and all storage is arrived locally stored
On array.Thus, in the case of resolution ratio of camera head is consistent, different manufacturers system, identical way
Photographic head, identical time, required for the memory space that takies be essentially identical.
But through it was verified that in most cases, static video flow is often not provided with the letter being worth
Breath or the valuable information provided are little, valuable video record information real to client with store completely
Video record information be often inconsistent, even in part scene, valuable video proportion
Less than 20%.Therefore, the most effectively utilizing same memory capacity, the most storages are valuable to client
Video stream information be those skilled in the art's problem demanding prompt solutions.
Summary of the invention
The present invention is to avoid the weak point existing for above-mentioned prior art, it is provided that a kind of video frequency signal processing with
Storage method and system.Utilize the method and system given by the present invention, the multichannel video decoding that will watch,
After reducing and splicing, then being re-encoded as the compression video of H.264 form, client has only to receive this
One road video decoded back just can watch multiple paths of video images before treatment simultaneously, by transmission bandwidth and decoding
Computing requires all to be reduced to the resource requirement level of a road video；Simultaneously to video monitoring system of the prior art
System carries out scientific and reasonable improvement, thus effectively utilizes memory capacity.
The technical scheme is that and be achieved in that:
A kind of video frequency signal processing and storage method, store with video signal including video frequency signal processing, described
Video frequency signal processing includes: multichannel video decoding is become video image；Reduce decoded video image；Will
Video image after multichannel reduces splices a video image that permeates；Described encoding video pictures is become a road
H.264 the compression video of form；The compressed video decoder of described H.264 form is reduced into multiple paths of video images,
Described video signal storage includes: preset multiple paths of video images information storage natural law or memory capacity；Real
Time the video flowing that obtains in the information of monitoring image；It is analyzed real-time video information identifying, identifies in real time
The video information obtained is mobile video or static video；The video module stored is analyzed retrieval,
The video information that retrieval has stored is mobile video or static video；If being not up to the storage natural law preset or depositing
Storage capacitance values, then store mobile video or static video on locally stored array；If having reached default
Storage natural law or memory capacity numerical value, then delete the static video memory block stored, be stored in real time acquisition
Mobile video or static video.
Preferably, presetting storage natural law is 28～31 days.
Preferably, described video flowing encodes with H264 or H265 coding form.
Preferably, the pixel number of described video monitoring image is predeterminable.
Present invention also offers a kind of video frequency signal processing and storage system, including hardware decoder module, image
Reduce module, image mosaic module, coding module and decoding recovery module；Wherein,
Multichannel video decoding is become video image by described hardware decoder module；
Described image down module reduces decoded video image；
Video image after multichannel is reduced by described image mosaic module splices a video image that permeates；
Described encoding video pictures is become the compression video of a road H.264 form by described coding module；
The compressed video decoder of described H.264 form is reduced into multiple paths of video images by described decoded back module.
Compared with prior art, the method have the advantages that
A kind of video frequency signal processing of the present invention and storage method and system, the multichannel video decoding that will watch,
After reducing and splicing, then being re-encoded as the compression video of H.264 form, client has only to receive this
One road video decoded back just can watch multiple paths of video images before treatment simultaneously, by transmission bandwidth and decoding
Computing requires all to be reduced to the resource requirement level of a road video；Meanwhile, effective video prison can effectively be promoted
The information space utilisation of control, according to the general statistics of video monitoring storage, can averagely extend 70～80%
The effective video stream storage time, positive extraction effectively stores information, has saved depositing in video monitoring system
Storage investment, provides the video monitoring information of preciousness for post survey evidence obtaining, and for video surveillance management, person is timely
Science decision provides strong technical support, and is promoted in monitoring system and applies.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of video frequency signal processing of the present invention and storage method.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, a kind of video frequency signal processing and storage method, believe with video including video frequency signal processing
Number storage, described video frequency signal processing includes: multichannel video decoding is become video image；Reduce decoded
Video image；Video image after multichannel being reduced splices a video image that permeates；By described video figure
As being encoded into the compression video of a road H.264 form；The compressed video decoder of described H.264 form is reduced
Becoming multiple paths of video images, described video signal storage includes: preset multiple paths of video images information storage sky
Number or memory capacity；The information of monitoring image in the video flowing obtained in real time；Real-time video information is carried out point
Analysis identifies, identifies that the video information obtained in real time is mobile video or static video；To the video screen module stored
Block is analyzed retrieval, and the video information that retrieval has stored is mobile video or static video；If it is the most pre-
If storage natural law or memory capacity numerical value, then mobile video or static video are stored locally stored array
On；If having reached default storage natural law or memory capacity numerical value, then delete the static video storage stored
Block, is stored in the mobile video of acquisition in real time or static video.
Presetting storage natural law is 28～31 days.
Described video flowing encodes with H264 or H265 coding form.
The pixel number of described video monitoring image is predeterminable.
Present invention also offers a kind of video frequency signal processing and storage system, including hardware decoder module, image
Reduce module, image mosaic module, coding module and decoding recovery module；Wherein,
Multichannel video decoding is become video image by described hardware decoder module；
Described image down module reduces decoded video image；
Video image after multichannel is reduced by described image mosaic module splices a video image that permeates；
Described encoding video pictures is become the compression video of a road H.264 form by described coding module；
The compressed video decoder of described H.264 form is reduced into multiple paths of video images by described decoded back module.
Wherein, signal processing and storage system also include that front end surveillance device, video receiving apparatus, video are deposited
Storage device, video receiving apparatus receives, by network, video signal, the video that on-the-spot front end surveillance device gathers
Storage device is responsible for storing video signal, it is characterised in that video storage device includes recognition unit and retrieval
Unit, recognition unit is for identifying that the video of acquisition in real time is mobile video or static video, and retrieval unit is used
The video stored in retrieval is mobile video or static video.
Above-mentioned video monitoring system, wherein, described front end surveillance device includes video flowing generation module,
Video flowing generation module encodes with H264 or H265 coding form.
Above-mentioned video monitoring system, wherein, described front end surveillance device passes through INTERNET or 3G/4G
Network is connected with video receiving apparatus.
The method step of cumulated volume invention understands, a kind of video frequency signal processing of the present invention and storage method be
System, the multichannel video decoding that will watch, reduce and splice after, then be re-encoded as H.264 form
Compression video, client has only to receive this road video and decoded back just can be watched before treatment many simultaneously
Road video image, requires all to be reduced to the resource requirement level of a road video by transmission bandwidth and decoding computing；
Meanwhile, can effectively promote the information space utilisation of effective video monitoring, according to the one of video monitoring storage
As add up, can averagely extend 70～80% effective video stream storage the time, positive extraction effectively stores letter
Breath, has saved the storage investment in video monitoring system, provides the video prison of preciousness for post survey evidence obtaining
Control information, provides strong technical support for the timely science decision of video surveillance management person, and in monitoring system
System is promoted and applies.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (5)
1. video frequency signal processing and a storage method, store with video signal including video frequency signal processing, its feature
Being, described video frequency signal processing includes: multichannel video decoding is become video image；Reduce decoded regarding
Frequently image；Video image after multichannel being reduced splices a video image that permeates；By described video image
It is encoded into the compression video of a road H.264 form；The compressed video decoder of described H.264 form is reduced into
Multiple paths of video images, described video signal storage includes: preset multiple paths of video images information storage natural law
Or memory capacity；The information of monitoring image in the video flowing obtained in real time；Real-time video information is analyzed
Identify, identify that the video information obtained in real time is mobile video or static video；To the video module stored
Being analyzed retrieval, the video information that retrieval has stored is mobile video or static video；If not up to presetting
Storage natural law or memory capacity numerical value, then mobile video or static video are stored on locally stored array；
If having reached default storage natural law or memory capacity numerical value, then delete the static video memory block stored,
It is stored in the mobile video of acquisition in real time or static video.
2. video frequency signal processing as claimed in claim 1 and storage method, it is characterised in that preset storage
Natural law is 28～31 days.
3. video frequency signal processing as claimed in claim 1 or 2 and storage method, it is characterised in that described regards
Frequency stream encodes with H264 or H265 coding form.
4. video frequency signal processing as claimed in claim 1 or 2 and storage method, it is characterised in that described regards
Frequently the pixel number of monitoring image is predeterminable.
5. a video frequency signal processing and storage system, it is characterised in that include hardware decoder module, image down
Module, image mosaic module, coding module and decoding recovery module；Wherein,
Multichannel video decoding is become video image by described hardware decoder module；
Described image down module reduces decoded video image；
Video image after multichannel is reduced by described image mosaic module splices a video image that permeates；
Described encoding video pictures is become the compression video of a road H.264 form by described coding module；
The compressed video decoder of described H.264 form is reduced into multiple paths of video images by described decoded back module.
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| CN201610378173.6A CN105979189A (en) | 2016-05-31 | 2016-05-31 | Video signal processing and storing method and video signal processing and storing system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108471513A (en) * | 2018-03-28 | 2018-08-31 | 国网辽宁省电力有限公司信息通信分公司 | Video fusion method, apparatus and server |
| CN108989824A (en) * | 2018-09-13 | 2018-12-11 | 北京知多星科技有限公司 | Video data restoration method, apparatus and video reduction apparatus |
| CN110956600A (en) * | 2019-11-27 | 2020-04-03 | 北京百度网讯科技有限公司 | Information fusion method and device, electronic equipment and readable storage medium |
| CN111757121A (en) * | 2020-07-08 | 2020-10-09 | 杭州海康威视数字技术股份有限公司 | Video stream reverse playing method and device |
| CN111954066A (en) * | 2020-08-31 | 2020-11-17 | 西安万像电子科技有限公司 | Image processing method, system, device, storage medium and processor |
| CN112055212A (en) * | 2020-08-24 | 2020-12-08 | 深圳市青柠互动科技开发有限公司 | System and method for centralized analysis and processing of multiple paths of videos |
| CN114915807A (en) * | 2022-07-14 | 2022-08-16 | 飞狐信息技术（天津）有限公司 | Information processing method and device |
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| CN108471513A (en) * | 2018-03-28 | 2018-08-31 | 国网辽宁省电力有限公司信息通信分公司 | Video fusion method, apparatus and server |
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