CN104702897B - The quick history playback and the method for event latch that Internet video is made video recording - Google Patents
The quick history playback and the method for event latch that Internet video is made video recording Download PDFInfo
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Abstract
The quick history playback and the method for event latch that the present invention makes video recording for a kind of Internet video, this method is applied on the player that Internet video makes video recording (NVR), the player to recording image (recorded image) when performing history playback, processing first can be unziped it to the compressed file for recording image, and whether reached a certain level according to wherein sequential chart interframe image data variable quantity, mark represents the flag of " changing " and " unchanged " respectively, then, further according in the player correspond to change and unconverted sequential chart frame set by different broadcasting speeds, continue on a display and play out the image of sequential chart frame.So, the tediously long time needed for history playback can not only significantly be reduced, and monitoring personnel is made rapidly to be supervised to a small amount of image that need to really pay close attention to, and then time, spirit and eyesight spent during monitoring personnel history supervises is greatly decreased in the playback image data of magnanimity.
Description
Technical field
It is espespecially a kind of significantly to reduce the history playback made video recording the present invention relates to the play-back technology that a kind of Internet video is made video recording
Time, and enable monitoring personnel in the playback image data of magnanimity, rapidly supervise to a small amount of image that need to really pay close attention to, into
And the time spent by monitoring personnel, spirit and eyesight is greatly decreased, and make monitoring personnel have the sufficient time, carefully supervise event
The generation whole story, and the playback method of business reasons is quickly and correctly judged accordingly.
Background technology
General speech, image monitoring system, which is arranged on, to be needed to make video recording to deposit the locality of card, to shoot and record the spy
Determine the image in place, the anomalous event occurred in the locality supervised for monitoring personnel, and start necessary emergency measure accordingly,
Therefore, when setting and setting up image monitoring system, camera mounting must be located at the correct position of locality by installation personnel,
To ensure that the imagery zone acquired in video camera can cover the four corner to be supervised, and then ensure the image acquired in video camera
The overall picture that anomalous event occurs can be judged accordingly for monitoring personnel or image recognition system, in addition, the correct of video camera sets up position
Putting also includes conveniently adjusting camera angle and the position of maintaining is carried out to video camera.Before 20 years, traditional image prison
Control system is built on analog image monitoring platform, and analog image monitoring platform utilizes 5C2V coaxial lines, and video camera is obtained
National Television System Committee (National Television System Committee, the abbreviation NTSC) image taken
Signal, after being transmitted to matrix form monitoring host, then chosen switching, output to monitoring wall is supervised in real time, or is stored to record
Shadow equipment, analog image monitoring platform is not only bulky, expensive, also needs additionally to connect up, and can not provide more people at the same time
And real-time imaging is arbitrarily had access to, cause analog image to monitor platform gradually by market.
In recent years, continuing to introduce new due to digitized video supervision equipment and network software, and price is increasingly cheap, respectively
Boundary (including organ, company, community and individual) is based on to environment, public and personal security increasingly attention, digitized video monitoring
Systematic difference and demand are continuous expansion and increase, and have substituted aforementioned conventional analog image to monitor platform, are determined to become shadow
As the mainstream in monitoring market.Digitized video monitoring platform mainly obtains digitized video using network camera (IP CAM), or will
After analog image compression digitlization acquired in traditional photography machine, then by IP network platform, transmit digital audio-video signal, order prison
The image acquired in video camera can be supervised and record depending on personnel in any point in IP network domain.In addition, to save digitized video prison
Depending on the video bandwidth of platform, digitized video monitoring system must also can to acquired in video camera and transmission video-audio data stream, into
The appropriate compression processing of row；At present, though the digital audio-video compliant compression that more often uses of in the market generally for H.264, MPEG-4, M-
JPEG etc., but since the higher photography function of image pixel shoots more visible image, effectively to lift monitoring personnel or shadow
As identification system is to the discrimination power of personage, and help to carry out identification accuracy when crime detects anti-to face or car plate, therefore,
Using the higher video camera of image pixel in digitized video monitors platform, inundant market master is almost had been considered as
Stream.However, high pixel video camera is also it is meant that the video-audio data stream future of substantial amounts is necessarily full of in IP network domain, not only
Most network bandwidth is occupied, can also take substantial amounts of memory space in video equipment, and cause image recognition system
Computing becomes difficulty higher, increasingly complex and more expend the time.Further, since the image quality that video camera obtains is highly prone to clap
The influence of angle and environmental light brightness change is taken the photograph, will be because that can not use when the image analytic degree acquired in video camera is bad
Image recognition system, carries out image automatic identification analysis and is compared with back-end data base, and can not it is real-time in continuous image and
Target is accurately found out, and image must one by one be supervised, compared and judged after an event occurs, manually, no
Only work consuming, it is also extremely time-consuming.In view of this, using the video camera of more high-res, to adapt to different shooting angles and ambient light
Change, then the common prescription as many dealers to high-order digit image monitoring platform, however, really it has been observed that more high-res
A greater amount of imaging data stream caused by video camera, and more network bandwidths and memory space are occupied, and certainly will cause
Image transmission and automatic identification become that more efficiency is not evident, and need to borrow additional more at a high speed and the network equipment of costliness and center
Processor just can overcome the disadvantages that, in this way, vicious circle, the price for ultimately resulting in high-order digit image monitoring platform remains high all the time,
And it can not be commonly used in all circles.
At present, the image compression and decompression technique that in the market more often uses have H.264, the difference such as MPEG-4, M-JPEG
Specification, different size correspond to the characteristics such as different image analytic degrees, display frame number, transmission rate and memory capacity per second, pin
For renting the user of general telecommunications company's special line bandwidth for transmission digital surveillance image, following principle is based on, selects it
Compression and decompression technique used in digitized video monitoring platform：
1st, because H.264 having optimal compression ratio, and the requirement of bandwidth and memory capacity is all smaller, therefore is suitable for self-built
Cable network, however, when image transmission is in unstable broadband network, easily causes fuzzy pictures.
Though the 2, bandwidth needed for M-JPEG is larger, when bandwidth is unstable, but it is not easy to influence its quality of making video recording, therefore is suitable for certainly
The wireless network built.
At present, for technology of making video recording all based on digitlization, image records follow-up maintenance and transmission bandwidth of the framework for system
Also there is significantly affecting, according to the prior art, image store and have access to framework and can be divided mainly into following two types：
1st, front end distributing storage architecture：Also known as " digital video is made video recording " (Digital Video Recorder, abbreviation
DVR) decentralized management framework 1, as shown in fig.1, the equipment such as its video camera 10 and digital video recorder 11 is laid in front end
Monitoring scene, after the image acquired in video camera 10 is directly compressed using digital video recorder 11, stores, generally with 4~16 immediately
It is the most common practice that branch video camera 10, which shares a digital video recorder 11, therefore, is relatively adapted to be laid in monitoring place and disperses, prison
It is larger depending on live area, and history image to be based on relatively often directly replicating and take at the scene, had access to by network supplemented by.Before such a
Distributing storage architecture is held, because field device volume is big, space acquirement is not easy, difficulty of construction is higher, equipment influences sight, uncomfortable
Close high humidity high fever outdoor environment, be not easy maintenance management, image accessing inconvenience and rear end monitoring 12 value-added tax function of platform be limited
Shortcoming, normally only suitable for specific room area, such as：In building Zhongting or parking lot, applied to supervision building Zhongting or parking
The environment of field.
2nd, rear end centralised storage framework：Also known as " Internet video is made video recording " (Network Video Recorder, abbreviation
NVR) decentralized management framework 2, as shown in fig.2, network camera 20 is in the image acquired in live end, it is direct immediately or logical
Digital video frequency server (Digital Video Server, abbreviation DVS) 21 is crossed, is compressed and is sent to point of presence 22 and deposited
Storage, each work station 23 can arbitrarily have access to image directly or by network.Since live end is only provided with network camera 20, scene
Equipment volume is small, simple to install, and less influences sight, and host 221 of making video recording then is installed concentratedly in point of presence 22 jointly, respectively
Work station 23 can link to point of presence 22 directly or by network, carry out image capturing and have access to, therefore, can not only be at the same time
Image is had access into point of presence 22 for more people, host 221 of making video recording is also prone to manage, safeguards, and safe, if in addition, record
Shadow host 221 uses high-performance server, can not only provide intelligent imaging identification and compare, value added application, be also prone to expand record
Shadow function and capacity, and the demand of particular scene can be directed to, extend the time of making video recording of particular network video camera 20, adjustment image passes
Defeated bandwidth and display number per second, are relatively suitably applied the monitoring environment on a large scale such as neighbourhood, traffic, crossing, bay.
Present invention is generally directed to foregoing NVR decentralized managements framework, improved, now generally used with each great institutions
Numeral make video recording monitoring system image platform exemplified by, illustrate the operation shape of current NVR decentralized managements framework, refering to Fig. 3 institutes
Show, each numeral make video recording monitoring system 3 can public security primary location inside and outside each great institutions build branched network camera 30 respectively,
The equipment such as broadcasting server 321 of making video recording then are respectively arranged in guardroom or Central Control Room 32, wherein, acquired in network camera 30
Image all with digital form, is compressed to H.264 (720 × 480,15FPS) or the H.264 lattice such as (1280 × 960,7FPS)
Formula, then virtual private net (Virtual Private Network, abbreviation VPN) video transmission network 33 via rental, stand
Transmit and store to the broadcasting server 321 of making video recording in 32 computer room of each guardroom or Central Control Room, each guard can be by system
Default access right, or other people also can voucher by the work station 34 of affiliated unit, login the broadcasting server 321 of making video recording
Afterwards, can be directly in having access to image and operation various functions on network, some systems, which are removed, to be included scheming control, mechanism position information, sets
Outside the systemic-functions such as standby monitoring and maintenance management, also with intelligent imaging discriminating function, wherein, figure control systemic-function provides overall
Resource service, mainly has the function of platform power keyholed back plate, resource allocation, incident management and electronic map etc., more using distributing
Layer architecture, user can carry out the history playback of real-time imaging supervision and recording image by scheming control interface.
From the above, each numeral make video recording monitoring system be using the calculation software of broadcasting server of making video recording, it is right
Image acquired in network camera is judged, to detect the state-event occurred in monitor area automatically, then will be recognized
Event transmission to the central computer system of Central Control Room, and give a warning, so that central computer system carries out follow-up contingency management
And personnel send, its intelligent imaging discriminating function is mainly to carry out intelligent analysis to the signal of video signal obtained
(intelligent analysis) processing, image input source is digitized using its built-in image capturing card,
Obtain, compare, tracking, the processing such as analysis, and perform and make video recording work, its event detection function is except can detect and recognize automatically event
Outside, moreover it is possible to for following event beginning to terminating, mobile or abnormal object is indicated on continuous image：
(1) as shown in fig.4, the moving article outside mechanism for monitoring (such as：Vehicle or people), and with a certain specific color (such as：
It is red) highlighted picture frame (highlighted brackets) 40 indicated, so that monitoring personnel can be with visual (eye
Contact object on the move) is supervised.
(2) as shown in fig.5, the abnormal object that public security primary location increases newly in mechanism for monitoring (such as：Suspicious packages), and with
A certain specific color is (such as：Yellow) highlighted picture frame 41 indicated, so that monitoring personnel can be newly-increased different visually to notice
Normal object and its process.
(3) as shown in fig.6, the object moved or be stolen in public security primary location in mechanism for monitoring (such as：Luggage),
And with a certain specific color (such as：Blueness) highlighted picture frame 42 indicated, so that monitoring personnel can be visually to notice and be removed
The object and its process for moving or being stolen.
(4) as shown in fig.7, whether the video camera of public security primary location out of focus in mechanism for monitoring, and with a certain specific and
Highlighted icon is (such as：Exclamation mark) 43 warned, so that monitoring personnel can be during visual supervise, it is noted that this is one out of focus
Problem.
(5) as shown in fig.8, whether the video camera of public security primary location is shielded in mechanism for monitoring, and with a certain specific
And highlighted icon is (such as：Palm) 44 warned, so that monitoring personnel can be during visual supervise, it is noted that this masking
Problem.
In general, the image recorded in aforementioned digital makes video recording monitoring system, though such as one section of movie or television picture,
It is to continue to be stored at least one and record in image file in the form of figure frame (frame) data of image are chronological, but
It is that real-time for anomalous event is found, still completely need to be by monitoring personnel visually to supervise, aforementioned digital is made video recording monitoring system
In INTELLIGENT IDENTIFICATION function only indicating changed object in image, pay attention to for monitoring personnel, analyze and judge, with
Note abnormalities event, its practice is mainly sequential chart interframe (the frame by successively occurred on a timeline by comparing
Frame) the change of whole image data, and judge accordingly and indicate changed target (target) in image, therefore,
Great computer efficiency need to be expended in INTELLIGENT IDENTIFICATION work.Secondly, aforementioned digital monitoring system of making video recording is recording video camera institute
During the image of acquisition, to save memory space, though foregoing common image compression software can be used to carry out sequential chart frame data
Compression is handled, and is recorded only in the part changed in the sequential chart frame successively occurred on time shaft；However, after an event occurs,
During recording image progress history playback, because must first borrow image decompression software, solved to recording image file
Compression, could perform history playback, cause monitoring personnel to still have to find, supervise and confirmed on a small quantity in the striograph frame of magnanimity
The image related with event, and substantial amounts of spirit, eyesight and time must be expended.
In conclusion since NVR digitized videos monitoring system is primarily directed to the image of locality, full-time monitoring is carried out
Make video recording, therefore in addition to it should consider the factor such as user demand and peripheral equipment compatibility, how high image quality shadow need not be significantly increased
As equipment, high power capacity video equipment and high-speed network appliance buy more cost on the premise of, effectively improve image play image quality, increase
Add history playback efficiency and lifting event recognition ability, to accelerate to enable the characteristic of high-order NVR digitized video monitoring systems to popularize
In all circles, become many image monitoring dealers and network service dealer and carve positive effort research and development and desire most ardently the important mesh of one reached
Mark.
The content of the invention
The main object of the present invention is to provide the quick history playback that a kind of Internet video makes video recording and the method for event latch,
For significantly reducing the history playback time made video recording, monitoring personnel is set rapidly to supervise the image that need to really pay close attention on a small quantity.
The present invention technical solution be：
A kind of quick history playback that Internet video makes video recording is provided and the method for event latch, this method are applied to a network
On the player that video is made video recording, which includes a decompression software, and when performing history playback to recording image, energy
A compressed file to recording image, performs the processing of the following steps：
(1-1), to recording the compressed file of image, unzips it processing using the decompression software；
(1-2) judges whether continuous and adjacent two figures interframe image data variable quantity reaches a setting degree, if so, performing
Step (1-3)；Otherwise, step (1-4) is performed；
(1-3) is judging that a later frame image reaches the setting journey relative to the image data variable quantity between former frame image
In the state of degree, after mark represents the flag of " changing " on a later frame image, step (1-5) is performed；
(1-4) is judging that a later frame image is not up to the setting relative to the image data variable quantity between former frame image
In the state of degree, after mark represents the flag of " unchanged " on a later frame image, step (1-5) is performed；And
(1-5) judges whether to complete the mark processing of whole sequential chart frame images in the compressed file, if so, performing step
(1-6)；Otherwise, step (1-2) is performed, processing is labeled to subsequent figure frame；
(1-6) flag set in advance in the player corresponds to broadcasting speed according to user, is connect on a display
The image of the sequential chart frame is released in continued broadcasting.
A kind of quick history playback that Internet video makes video recording separately is provided and the method for event latch, this method are applied to a net
On the player that network video is made video recording, which includes a decompression software, and when performing history playback to recording image,
The processing of the following steps can be performed to recording a compressed file of image：
(4-1), to recording the compressed file of image, unzips it processing using the decompression software；
(4-2) judges the degree of continuous and adjacent two figures interframe image data amount change or the scope of region of variation；
(4-3) marks the flag of corresponding grade on a later frame image；
(4-4) judges whether to complete the mark processing of whole sequential chart frame images in the compressed file, if so, performing step
(4-5)；Otherwise, step (4-2) is performed, the mark that grade is carried out to subsequent figure frame is handled；And
(4-5) corresponds to each grade institute different broadcasting speeds set in advance according to user in the player, one
Continue on display and play out the image of the sequential chart frame.
The features and advantages of the invention are as follows：
The quick history playback and the method for event latch that the Internet video is made video recording can be applicable to Internet video is made video recording one
On player, which, can be first to recording image when performing history playback to recording image (recorded image)
Whether one compressed file unzips it processing, and reached a certain level according to wherein sequential chart interframe image data variable quantity,
Mark represents the flag of " changing " and " unchanged " respectively, then, is respectively changed and nothing further according to corresponding in the player
Different broadcasting speeds set by the sequential chart frame of change, continue on a display and play out the image of sequential chart frame.In this way,
The tediously long time needed for history playback can not only significantly be reduced, and enable monitoring personnel in the playback image data of magnanimity, soon
The image that need to really pay close attention on a small quantity is supervised fastly, and then the time spent by monitoring personnel, spirit and eyesight is greatly decreased；This
Outside, because monitoring personnel has the sufficient time, to the part " changed " in sequential chart frame, the whole story that event occurs carefully is supervised, and
The true cause that event occurs quickly and accurately is analyzed and judged accordingly, therefore the method for the present invention only need to be easily and rapidly
Under software calculation condition, using a small amount of computer computing capability, it can realize that high-order is made video recording in cheap monitoring system of making video recording
The quick history playback and the characteristic of event latch that monitoring system can be done.
Method provided by the invention can also be directed to the degree according to image data variable quantity in sequential chart frame, set different etc.
Level is (such as：Height change, moderate change, minuent changes and unchanged), and corresponding grade is indicated on figure frame, then, then root
According to the different broadcasting speeds corresponded in the player set by each grade, continue play out the shadow of sequential chart frame over the display
Picture, and corresponding grade is marked on display picture, and then enable monitoring personnel during the supervision of history playback, can be more
Notice the part of height change in sequential chart frame, and quickly and correctly judge the true cause that outgoing event occurs accordingly.
The present invention a feature be：The broadcasting speed of unconverted sequential chart frame is fast compared with normal playback speed, is changed
The broadcasting speed of sequential chart frame compared with normal playback speed be slow, and successively decrease according to its variation grades.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing front end distributing storage architecture；
Fig. 2 is the schematic diagram of existing rear end centralised storage framework；
Fig. 3 is the schematic diagram of the operation shape of existing NVR decentralized managements framework；
Fig. 4 is the schematic diagram of the outer moving article image of existing mechanism for monitoring；
Fig. 5 is the schematic diagram that public security primary location increases abnormal object image newly in existing mechanism for monitoring；
Fig. 6 is the schematic diagram of object image moved or be stolen in public security primary location in existing mechanism for monitoring；
Fig. 7 is the schematic diagram of the video camera image out of focus of public security primary location in existing mechanism for monitoring；
Fig. 8 is the schematic diagram of the shielded image of video camera of public security primary location in existing mechanism for monitoring；
Fig. 9 is the method flow schematic diagram of the preferred embodiment of the present invention；And
Figure 10 is the method flow schematic diagram of another preferred embodiment of the present invention.
Symbol description：
Front end distributing storage architecture 1
Video camera 10
Digital video recorder 11
Rear end monitors platform 12
Rear end centralised storage framework 2
Network camera 20,30
Digital video frequency server 21
Point of presence 22
Work station 23,34
Make video recording host 221
Numeral is made video recording monitoring system 3
Make video recording broadcasting server 321
Central Control Room 32
Video transmission network 33
Highlighted picture frame 40,41,42
Icon 43,44
Embodiment
The object of the invention, technical characteristic and its effect can be done further understanding and understood for just your juror,
Now for embodiment and coordinate attached drawing, describe in detail as follows：
The image that inventor is recorded in monitoring system of making video recording to current numeral, finds, each numeral after studying for a long period of time
The player for monitoring system of making video recording after an event occurs, to record image carry out history playback during, because a shadow must be borrowed
As decompression software, processing first is unziped it to the image file of recording of compression so that record image file revert to it is original
And continuous figure frame data, history playback could be performed, the image of each figure frame is seriatim presented on a display, for monitoring
Personnel supervise and judge, by taking MPEG-4 specifications as an example, each second plays continuous 30 images, therefore, if being intended to supervise 24 small
When (86,400 seconds) in image, the image of continuous nearly 2,600,000 need to be supervised by amounting to, and not only extremely be wasted
Time, monitoring personnel must also be found in the figure frame image of magnanimity, supervise and confirm image related with event on a small quantity, also greatly
Amount consumes the spirit and eyesight of monitoring personnel.
Foregoing image compression software can only be recorded in the time when being compressed processing to the sequential chart frame data to be recorded
The part changed in the sequential chart frame successively occurred on axis, in fact, under the normal condition of most of time, due to each
It is generally not too large that the mobile change of object is corresponded between figure frame image, foregoing image compression software therefore need not will be per frame image
All record, conversely, need to only choose some crucial figure frames (key frame) from sequential chart frame sequence, stored, and be situated between
In other figure frames of crucial figure interframe, then the image change information with crucial figure interframe is only stored, in this way, relative to other
For whole image of figure frame, crucial figure interframe is smaller because image changes, and only needs a little memory space to store other figure frames
On image change information.
In view of this, it has been recognised by the inventors that the image recorded in monitoring system of making video recording to current numeral, carries out history playback
During, it is only necessary to the following three big factors occurred for event, are judged, can confirm have directly accordingly with event
And the image of close association：
(1) judge whether sequential chart interframe data amount changes；
(2) judge whether sequential chart interframe data variable quantity reaches a certain level, or whether its region of variation reaches certain
Scope；
(3) the changed beginning of sequential chart interframe data amount and end time are judged.
Therefore, if each numeral is made video recording monitoring system player can when unziping it processing to recording image file,
It can detect the situation that sequential chart interframe data amount (Data Traffic) changes in the unit interval, figure interframe can be distinguished
" changing " and the relativeness of " unchanged ", wherein, " changing " refers to the data quantitative change of sequential chart interframe in the unit interval
Change reaches a certain level, or region of variation reaches a certain range, must have the movement object more than certain size to go out in representative graph frame
It is existing, or entirely figure frame Scene picture is switched, accordingly, the player is when performing foregoing history playback process, it is only necessary to pin
To the part " changed " in sequential chart frame, slow play (that is, slow compared with normal playback speed) is performed, and in sequential chart frame
The part of " unchanged ", performs quick broadcasting (that is, fast compared with normal playback speed), i.e., can not only significantly reduce needed for history playback
The tediously long time, and monitoring personnel can be made to be directed to the part that " changes " in sequential chart frame, there is more time carefully to supervise event
The whole story of generation, and the true cause that outgoing event occurs correctly and rapidly is analyzed and judged accordingly.
In view of this, inventor is the quick history made video recording of a kind of Internet video that the present invention is developed according to above-mentioned theory
Playback and the method for event latch, this method pole are suitably employed in some places that need to be monitored, particularly, this kind of place
Video pictures most of time be do not change or change seldom, and monitoring personnel it is of interest also mainly concentrate in a short time
Sequential chart interframe image data amount changes the greater, therefore, quick to find or retrieve when the history playback of image is recorded in execution
Go out in sequential chart frame the part of " changing ", that is, become to be of practical significance very much, because so recording shadow only necessary in magnanimity
As in, a small amount of image that need to really pay close attention to is supervised, the time spent by monitoring personnel, spirit and eyesight can not only be made significantly to subtract
It is few, and monitoring personnel can be made to have the more fully time, to the part " changed " in sequential chart frame, carry out rapid and correctly divide
Analysis and judgement, and then can be under easily and rapidly software calculation condition, can be cheap using a small amount of computer computing capability
Monitoring system of making video recording in, realize the work(of quick history playback and lock event image high-order made video recording monitoring system can be done
Energy.Refer to shown in Fig. 9, in the preferred embodiment of the present invention, this method is made video recording (Network applied to an Internet video
Video Recorder, abbreviation NVR) a player on, which includes a decompression software, and to recording image
When (recorded image) performs history playback, the processing of the following steps can be performed to recording a compressed file of image：
Step 100：Using the decompression software first to recording the compressed file of image, processing is unziped it；
Step 101：Judge whether continuous and adjacent two figures interframe image data variable quantity reaches a setting degree (such as：
1%), if not up to, performing step 102, otherwise, step 103 is performed；
Step 102：It is somebody's turn to do judging that a later frame image is not up to relative to the image data variable quantity between former frame image
(that is, less than setting) in the state of setting degree, after mark represents the flag of " unchanged " on a later frame image, step is performed
104；
Step 103：Judging that a later frame image reaches this relative to the image data variable quantity between former frame image and set
(that is, not less than setting) in the state of determining degree, after mark represents the flag of " changing " on a later frame image, step is performed
104；
Step 104：Judge whether to complete the mark processing of whole sequential chart frame images in the compressed file, if so, performing
Step 105, otherwise, step 101 is performed, processing is labeled to subsequent figure frame；And
Step 105：According to user in the player correspond to respectively change and unconverted sequential chart frame institute in advance
The different broadcasting speeds (that is, flag corresponding speed 106 set in advance) of setting, continue on a display and play out sequential chart
The image of frame, wherein, the broadcasting speed of unconverted sequential chart frame compared with normal playback speed be it is fast, the sequential chart frame changed
Broadcasting speed is then slow compared with normal playback speed.
In this way, because unconverted sequential chart frame is played with faster speed, can not only significantly reduce needed for history playback
The tediously long time, and monitoring personnel is recorded image in magnanimity, rapidly supervise to the image that really need to be paid close attention on a small quantity, into
And the time spent by monitoring personnel, spirit and eyesight is greatly decreased, in addition, because the sequential chart frame changed is with slower speed
Play, moreover it is possible to make monitoring personnel have the sufficient time, to the part " changed " in sequential chart frame, carefully supervise the beginning that event occurs
End, without performing the action of history playback repeatedly, can quickly and accurately analyze and judge the reason for outgoing event occurs.
In another preferred embodiment of the present invention, please refer to Fig.1 shown in 0, this method is made video recording applied to an Internet video
A player on, which includes a decompression software, and to Internet video when recording image and performing history playback,
The processing of the following steps can be performed to recording a compressed file of image：
Step 200：Using the decompression software first to recording the compressed file of image, processing is unziped it；
Step 201：Judge the degree (or scope of region of variation) of continuous and adjacent two figures interframe image data amount change,
Whether multiple setting grades one of are belonged to (such as：The degree of data volume change or the scope of region of variation, belong to no change less than 1%
Change, belong to low change between 1%~5%, belong to moderate change between 5%~10%, height is belonged to higher than more than 10% and is become
Change), and corresponding grade is marked on figure frame；Judging a later frame image relative to the image data change between former frame image
Change amount (or scope of region of variation) is less than in the state of 1%, performs step 202, otherwise, performs step 203；
Step 202：After mark represents the flag of " unchanged " grade on a later frame image, step 208 is performed；
Step 203：Judging a later frame image relative to image data variable quantity (or the variation zone between former frame image
The scope in domain) in the state of 1%~5%, step 204 is performed, otherwise, performs step 205；
Step 204：After mark represents the flag of " minuent change " grade on a later frame image, step 208 is performed；
Step 205：Judge a later frame image relative to the image data variable quantity between former frame image between 5%~
In the state of 10%, step 206 is performed, otherwise, performs step 207；
Step 206：After mark represents the flag of " moderate change " grade on a later frame image, step 208 is performed；
Step 207：After mark represents the flag of " height change " grade on a later frame image, step 208 is performed；
Step 208：Judge whether to complete the mark processing of whole sequential chart frame images in the compressed file, if so, performing
Step 209, otherwise, step 201 is performed, the mark that grade is carried out to subsequent figure frame is handled；And
Step 209：Correspond to each grade institute different broadcasting speeds set in advance in the player according to user
210, continue on a display and play out the image of sequential chart frame, and present on the image frame of the display corresponding etc.
Level, wherein, the broadcasting speed of unconverted sequential chart frame be fast compared with normal playback speed, and the broadcasting of the sequential chart frame changed is fast
Degree then successively decreases according to its grade compared with normal playback speed, and then monitoring personnel is more noted during the supervision of history playback
The part for height change of anticipating into sequential chart frame, and the true cause for the outgoing event generation that correctly judges accordingly.
In the aforementioned embodiment, sequential chart interframe image data variable quantity is judged for that can understand, the player is to recording
, can be by the decompression software when image performs history playback, interpretation goes out nothing in the sequential chart frame successively occurred on a timeline
The part of change, then choose a figure frame from continuous unconverted figure frame sequence, as a crucial figure frame (key frame),
Each figure frame and the changed journey of key figure interframe image data amount in the sequential chart frame sequence that interpretation subsequently changes again
Degree, or the scope of region of variation, and corresponding flag or grade are marked on image respectively recording accordingly, in this way, the player exists
When performing history playback to recording image, which can set in the player in advance according to user or designer
Different correspondence broadcasting speeds, continue play out the image of sequential chart frame over the display.Really it has been observed that since numeral is made video recording
The full-time all images recorded of monitoring system, only under a small number of time states, what image data amount therebetween can be because of object is larger
It is mobile, and significantly change occurs, conversely, under most of time state, the movement of object is general between sequential chart frame image
All without too big or even unchanged, therefore, by the method for the present invention, because the player can in a very quick way, aobvious
Show and unconverted sequential chart frame is played on device, or only play crucial figure frame, and show the beginning and end of unchanged sequential chart frame
Time, and skip other unconverted sequential chart frames.In this way, monitoring personnel can be supervised in the history that progress Internet video is made video recording
When, other tediously long unconverted sequential chart frames are quickly skipped over, spirit and eyesight are only concentrated to the company changed greatly in a short time
Continuous figure frame image, " to change " anomalous event of part in quick discovery and locking sequential chart frame, and carries out rapid and correct
Analysis and judgement, with confirm anomalous event occur the whole story and true cause.Accordingly, since the method for the present invention is as existing
Interface between player and existing decompression software, under easily and rapidly software calculation condition, to use a small amount of computer
Computing capability, can realize that quick history high-order made video recording monitoring system can be done is returned in cheap monitoring system of making video recording
Put and the function of lock event image, therefore the method for the present invention should meet novelty and progressive of Patent Law defined etc. really
Patent requirement.
The above, is only presently preferred embodiments of the present invention, however, the interest field that the present invention is advocated, does not limit to
It is all to be familiar with this those skilled in the art in this, according to disclosed herein technology contents, can think easily and equivalence changes, should all
Belong to the protection category for not departing from the present invention.
Claims (4)
1. quick history playback and the method for event latch that a kind of Internet video is made video recording, it is characterised in that the method application
In on the player that an Internet video is made video recording, which includes a decompression software, and is performing history to recording image
During playback, the processing of the following steps can be performed to recording a compressed file of image：
(1-1), to recording the compressed file of image, unzips it processing using the decompression software；
(1-2) by the decompression software, interpretation goes out unconverted part in the sequential chart frame successively occurred on a timeline, then
Choose a figure frame from continuous unconverted figure frame sequence, as a crucial figure frame, then the sequential chart that interpretation subsequently changes
Each figure frame and the changed degree of key figure interframe image data amount in frame sequence, or the scope of region of variation, to sentence
Disconnection continues and whether adjacent two figures interframe image data variable quantity reaches a setting degree, if so, performing step (1-3)；Otherwise,
Perform step (1-4)；
(1-3) is judging that a later frame image reaches the setting degree relative to the image data variable quantity between former frame image
Under state, after mark represents the flag of " changing " on a later frame image, step (1-5) is performed；
(1-4) is judging that a later frame image is not up to the setting degree relative to the image data variable quantity between former frame image
In the state of, after mark represents the flag of " unchanged " on a later frame image, perform step (1-5)；And
(1-5) judges whether to complete the mark processing of whole sequential chart frame images in the compressed file, if so, performing step (1-
6)；Otherwise, step (1-2) is performed, processing is labeled to subsequent figure frame；
(1-6) flag set in advance in the player corresponds to broadcasting speed according to user, continues and broadcasts on a display
Release the image of the sequential chart frame, the correspondence broadcasting speed of the more unconverted flag of correspondence broadcasting speed of the flag changed
To be slow.
2. quick history playback and the method for event latch that a kind of Internet video is made video recording, it is characterised in that the method application
In on the player that an Internet video is made video recording, which includes a decompression software, and is performing history to recording image
During playback, the processing of the following steps can be performed to recording a compressed file of image：
(4-1), to recording the compressed file of image, unzips it processing using the decompression software；
(4-2) by the decompression software, interpretation goes out unconverted part in the sequential chart frame successively occurred on a timeline, then
Choose a figure frame from continuous unconverted figure frame sequence, as a crucial figure frame, then the sequential chart that interpretation subsequently changes
Each figure frame and the changed degree of key figure interframe image data amount in frame sequence, or the scope of region of variation, to sentence
Disconnection continues and the degree of adjacent two figures interframe image data amount change or the scope of region of variation；
(4-3) marks the flag of corresponding grade on a later frame image；
(4-4) judges whether to complete the mark processing of whole sequential chart frame images in the compressed file, if so, performing step (4-
5)；Otherwise, step (4-2) is performed, the mark that grade is carried out to subsequent figure frame is handled；And
(4-5) corresponds to each grade institute different broadcasting speeds set in advance according to user in the player, one
Continue on display and play out the image of the sequential chart frame, and the broadcasting speed of the sequential chart frame changed is according to its grade, compared with
The broadcasting speed of unconverted sequential chart frame successively decreases.
3. method as claimed in claim 2, it is characterised in that step (4-5) also includes on the image frame of the display
Corresponding grade is presented.
4. method as claimed in claim 2, it is characterised in that degree that the grade changes according to data volume or region of variation
Scope, is distinguished into unchanged, low change, moderate change and four grades of height change.
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| CN106559635A (en) * | 2015-09-30 | 2017-04-05 | 杭州萤石网络有限公司 | A kind of player method and device of multimedia file |
| CN106559632B (en) * | 2015-09-30 | 2021-02-12 | 杭州萤石网络有限公司 | Multimedia file storage method and device |
| KR102537210B1 (en) * | 2016-07-29 | 2023-05-26 | 삼성전자주식회사 | Providing Method For Video Contents and Electronic device supporting the same |
| CN110674796B (en) * | 2016-11-18 | 2022-05-03 | 格兰菲智能科技有限公司 | Texture brick decompression method |
| CN108235123B (en) * | 2016-12-15 | 2020-09-22 | 阿里巴巴（中国）有限公司 | Video playing method and device |
| CN108012097B (en) * | 2017-11-13 | 2019-08-30 | 深圳市智美达科技股份有限公司 | Method, apparatus, computer equipment and the storage medium of video cloud video recording |
| CN110716803A (en) * | 2018-07-13 | 2020-01-21 | 中强光电股份有限公司 | Computer system, resource allocation method and image identification method thereof |
| CN110909730A (en) * | 2018-09-14 | 2020-03-24 | 恒景科技股份有限公司 | Imaging system for movement detection |
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| CN102314916A (en) * | 2010-07-07 | 2012-01-11 | 成都索贝数码科技股份有限公司 | Video processing method and system |
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