CN107896311A - A kind of method and apparatus of video comfort - Google Patents
A kind of method and apparatus of video comfort Download PDFInfo
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- CN107896311A CN107896311A CN201711215796.2A CN201711215796A CN107896311A CN 107896311 A CN107896311 A CN 107896311A CN 201711215796 A CN201711215796 A CN 201711215796A CN 107896311 A CN107896311 A CN 107896311A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
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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
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
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Abstract
The invention discloses a kind of method and apparatus of video comfort, during for solving video comfort in the prior art, there is video distortion, the technical problem of flicker in the image for causing receiving terminal to receive.The method of video comfort therein includes：The first vision signal that receiving end/sending end is sent；According to the first vision signal of reception, the class of attenuation information of first vision signal is determined；Wherein, the class of attenuation information is used to indicate attenuation degree of the vision signal in transmitting procedure；The control signal for carrying the class of attenuation information is fed back into the transmitting terminal, notifies the transmitting terminal to be compensated according to the class of attenuation information to the second vision signal sent afterwards；Wherein, the control signal is determined according to first vision signal.
Description
Technical field
The present invention relates to the technical field of video signal transmission, more particularly to a kind of method and apparatus of video comfort.
Background technology
Vision signal is typically transmitted by transmission mediums such as coaxial cable, twisted-pair cables.And transmission medium is presented
The characteristic of low pass cause vision signal by longer transmission medium enter to transmit when, it may appear that serious decay.High frequency be for
Clearly image color information is presented, it is seen then that this decay can severely impact picture quality.
Therefore, in the receiving terminal of vision signal, such as digital video recorder (Digital Video Recorder, DVR)
Deng set balanced device, vision signal is compensated by balanced device, with compensate decay of the vision signal in transmitting procedure and
Loss.And on this basis, prior art propose again it is a kind of coaxial regard control technology, i.e. transmission video signal over a transmission medium
Meanwhile in field blanking interval, in the way of both sides have made an appointment, receiving terminal to transmitting terminal feedback control signal, (order by control
Make), without influenceing normal video signal quality.Due to coaxial balanced device is have passed through depending on the control signal transmitted by control technology
Compensation, thus causes the overcompensation of control signal, and so as to influence the synchronization of video, the image for causing receiving terminal to receive will
There is video distortion, the phenomenon of flicker.
It can be seen that when being transmitted in the prior art on video signal transmission wire cable, the image that receiving terminal receives occurs that video is turned round
Bent, flicker phenomenon, influences Consumer's Experience.
The content of the invention
The embodiment of the present invention provides a kind of method and apparatus of video comfort, for solving video comfort in the prior art
When, there is video distortion, the technical problem of flicker in the image for causing receiving terminal to receive.
In a first aspect, the embodiments of the invention provide a kind of method of video comfort, this method includes：
The first vision signal that receiving end/sending end is sent；
According to the first vision signal of reception, the class of attenuation information of first vision signal is determined；Wherein, it is described to decline
Subtract class information to be used to indicate attenuation degree of the vision signal in transmitting procedure；
The control signal for carrying the class of attenuation information is fed back into the transmitting terminal, notifies the transmitting terminal according to institute
Class of attenuation information is stated to compensate the second vision signal sent afterwards；Wherein, the control signal is according to described
What one vision signal determined.
Optionally, according to the first vision signal of reception, the class of attenuation information of first vision signal is determined, is wrapped
Include：
First vision signal of reception is divided at least two first video signal components；
For each first video signal components, according to the initial characteristicses of default each first video signal components
Value and the actual characteristic value of each first video signal components received, determine the reality of each first vision signal
Pad value；
The decay of corresponding first vision signal is determined according to the actual attenuation value of each first video signal components
Grade.
Optionally, methods described also includes：
Receive the second vision signal that the transmitting terminal is sent；Wherein, second vision signal is mended by transmitting terminal
Vision signal after repaying；
Whether the actual attenuation value for second vision signal for judging to receive is less than default first threshold；
If so, then second vision signal is exported；
Otherwise, it is determined that the class of attenuation information of second vision signal, and the class of attenuation information determined will be carried
Control signal feed back to the transmitting terminal, notify the transmitting terminal according to the class of attenuation information of the determination to sending afterwards
The 3rd vision signal continue to compensate.
Optionally, methods described also includes：
If it is determined that first video signal interruption or second video signal interruption, then to receiving first video
The transmission channel of signal or second vision signal is resetted.
Optionally, methods described also includes：
By second vision signal export before, judge second vision signal class of attenuation information whether with it is upper
The class of attenuation information of the vision signal once received is consistent,
If consistent, fault message is exported；Wherein, the fault message is used to indicate that the transmitting terminal breaks down.
Second aspect, the embodiment of the present invention additionally provide a kind of method of video comfort, and this method includes：
The first vision signal is sent to receiving terminal；
Receive the control signal for the carrying class of attenuation information that the receiving terminal is sent；Wherein, the class of attenuation information
For indicating attenuation degree of the vision signal in transmitting procedure；The control signal is that the receiving terminal regards according to described first
What frequency signal determined；
The second vision signal sent afterwards is compensated according to the class of attenuation information of reception.
Optionally, the second vision signal sent afterwards is compensated according to the class of attenuation information of reception, wrapped
Include：
Each second vision signal that second vision signal includes is determined according to the class of attenuation information of reception
The class of attenuation corresponding to component；
According to the default class of attenuation and the corresponding relation of offset, respectively according to each second video signal components
The class of attenuation corresponding to offset, corresponding second video signal components are compensated.
Optionally, methods described also includes：
Receive the control signal of the class of attenuation information for carrying second vision signal that the receiving terminal is sent；
The 3rd vision signal sent afterwards is continued according to the class of attenuation information of second vision signal of reception
Compensate.
The third aspect, the embodiments of the invention provide a kind of digital video recorder, the digital video recorder includes：
Receiving unit, the first vision signal sent for receiving end/sending end；
Determining unit, for the first vision signal according to reception, determine that the class of attenuation of first vision signal is believed
Breath；Wherein, the class of attenuation information is used to indicate attenuation degree of the vision signal in transmitting procedure；
Feedback unit, for the control signal for carrying the class of attenuation information to be fed back into the transmitting terminal, notify institute
Transmitting terminal is stated to compensate the second vision signal sent afterwards according to the class of attenuation information；Wherein, the control letter
Number determined according to first vision signal.
Fourth aspect, the embodiment of the present invention additionally provide a kind of digital video recorder, and the digital video recorder includes：
Memory, for storage program；
Processor, for reading the program in the memory, perform following process：
The first vision signal that receiving end/sending end is sent；
According to the first vision signal of reception, the class of attenuation information of first vision signal is determined；Wherein, it is described to decline
Subtract class information to be used to indicate attenuation degree of the vision signal in transmitting procedure；
The control signal for carrying the class of attenuation information is fed back into the transmitting terminal, notifies the transmitting terminal according to institute
Class of attenuation information is stated to compensate the second vision signal sent afterwards；Wherein, the control signal is according to described
What one vision signal determined.
5th aspect, the embodiments of the invention provide a kind of video camera, the video camera includes：
Transmitting element, for sending the first vision signal to receiving terminal；
Receiving unit, the control signal of the carrying class of attenuation information sent for receiving the receiving terminal；Wherein, it is described
Class of attenuation information is used to indicate attenuation degree of the vision signal in transmitting procedure；The control signal is the receiving terminal root
Determined according to first vision signal；
Compensating unit, the second vision signal sent afterwards is mended for the class of attenuation information according to reception
Repay.
6th aspect, the embodiment of the present invention additionally provide a kind of video camera, and the video camera includes：
Memory, for storage program；
Processor, for reading the program in the memory, perform following process：
The first vision signal is sent to receiving terminal；
Receive the control signal for the carrying class of attenuation information that the receiving terminal is sent；Wherein, the class of attenuation information
For indicating attenuation degree of the vision signal in transmitting procedure；The control signal is that the receiving terminal regards according to described first
What frequency signal determined；
The second vision signal sent afterwards is compensated according to the class of attenuation information of reception.
7th aspect, the embodiment of the present invention provide a kind of computer-readable storage medium, wherein, the computer-readable storage medium is deposited
Computer instruction is contained, when the computer instruction is run on computers so that computer performs such as claim 1-5
And/or the method any one of 6-8.
Video comfort method provided in an embodiment of the present invention, transmitting terminal pass through coaxially depending on being fed back by way of controlling according to receiving terminal
The class of attenuation information of vision signal the vision signal sent afterwards is compensated.Because what coaxial video mode was fed back declines
It is not influenceed by balanced device in receiving terminal to subtract class information, and the image that receiving terminal would not be caused to receive just occurs that video is turned round
Bent, flicker phenomenon, better user experience.
Brief description of the drawings
Fig. 1 is the theory diagram for the video monitoring system that prior art provides.
Fig. 2 is the signal waveform schematic diagram for the analog video that prior art provides；
Fig. 3 is the oscillogram for the control signal being superimposed upon on a certain horizontal blanking row that prior art provides；
Fig. 4 is the oscillogram after the control signal being superimposed upon on a certain horizontal blanking row compensation that prior art provides；
Fig. 5 is a kind of schematic flow sheet of video comfort method provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic flow sheet of video comfort method provided in an embodiment of the present invention；
Fig. 7 is the theory diagram of video monitoring system provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation of digital video recorder provided in an embodiment of the present invention；
Fig. 9 is a kind of structural representation of digital video recorder provided in an embodiment of the present invention；
Figure 10 is a kind of structural representation of video camera provided in an embodiment of the present invention；
Figure 11 is a kind of structural representation of video camera provided in an embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.
The related background art of the embodiment of the present invention is first introduced below.
Fig. 1 is referred to, introduces a kind of application scenarios of the embodiment of the present invention, Fig. 1 is the theory diagram of video monitoring system.
Fig. 1 includes transmitting terminal 101, and such as video camera, receiving terminal 102, such as DVR and display 103, transmitting terminal 101 and receiving terminal 102 can
To carry out video by transmission mediums such as unshielded twisted pair (Unshielded Twisted Paired, TTP)/coaxial cables
The transmission of signal.The vision signal for gathering or preserving is sent to receiving terminal 102, receiving terminal by transmitting terminal 101 by coaxial cable
The vision signal of reception is sent to display 103 by 102, and the broadcasting of video is realized by display 103.
In video monitoring system, transmitting terminal 101 sends vision signal to receiving terminal 102, and receiving terminal 102 can also be to hair
The feedback control signal of sending end 101, to cause transmitting terminal 101 is realized according to the control signal of reception to join to the image of transmitting terminal 101
The adjustment of number, focusing etc..Generally, receiving terminal 102 passes through coaxially depending on being realized by way of controlling to the feedback control signal of transmitting terminal 101.
And transmitting terminal 101 by video signal transmission to receiving terminal 102 during, because the low-pass characteristic of transmission medium causes video
When signal enters to transmit by longer transmission medium, increase with the frequency of vision signal, it may appear that serious decay.High frequency is
For clearly image color information is presented, it is seen then that this decay can severely impact picture quality.
Therefore, in the prior art, balanced device is provided with receiving terminal 102, vision signal is compensated by balanced device
Decay.Due to receiving terminal 102 to the control signal that transmitting terminal 101 feeds back according to obtaining after have passed through equalizer compensation, this
Sample results in being superimposed upon the control signal overcompensation of vision signal, so as to influence the synchronization of video.Receiving terminal 102 regards reception
Frequency signal is sent to display 103, and video distortion, the phenomenon of flicker occurs in the image presented on the display 103, influences to use
Experience at family.
In order to make it easy to understand, being illustrated below with Fig. 2-Fig. 4, why video occurs in the image presented on display 103
Distortion, the phenomenon of flicker.
Fig. 2 is referred to, such as the signal waveform schematic diagram that Fig. 2 is analog video.Video image information is mainly by Fig. 2 video
Effective row transmission.It is exactly coaxially to realize superimposed digital signal in blank lines in fig. 2 depending on control technology, as shown in figure 3, Fig. 3 is
The oscillogram for the control signal being superimposed upon on a certain horizontal blanking row.In the prior art, because the balanced device in Fig. 1 can be to reception
Vision signal compensates, and coaxially the control signal depending on prosecutor formula feedback is to also go through the compensation of balanced device, therefore can go out
There is the situation of overcompensation in existing control signal, as shown in figure 4, Fig. 4 is the control signal compensation being superimposed upon on a certain horizontal blanking row
Oscillogram afterwards.Larger height overshoot occurs in comparison diagram 3 and Fig. 4, Fig. 4 control signal, so can cause on display 103
There is video distortion, the phenomenon of flicker in the image of presentation.
In consideration of it, the embodiment of the present invention provides a kind of video comfort method, the video to be sent is carried out in transmitting terminal 101
Compensation, and receiving terminal 102 can be not provided with balanced device, such receiving terminal 102 to transmitting terminal 101 by way of coaxially regarding control it is anti-
The control signal of feedback will not be influenceed by balanced device, the phenomenon of overcompensation would not naturally also occur, will not cause to receive termination
Video distortion, the phenomenon of flicker, better user experience just occurs in the image of receipts.
Technical scheme provided in an embodiment of the present invention is introduced below in conjunction with the accompanying drawings, in the following description
By taking the application scenarios shown in Fig. 1 as an example.
Fig. 5 is referred to, the embodiment of the present invention provides a kind of method of video comfort, and this method can apply to receiving terminal
102, the flow of this method is described as follows.
S501：The first vision signal that receiving end/sending end 101 is sent；
S502：According to the first vision signal of reception, the class of attenuation information of the first vision signal is determined；Wherein, decay
Class information is used to indicate attenuation degree of the vision signal in transmitting procedure；
S503：The control signal for carrying the class of attenuation information is fed back into transmitting terminal 101, notifies transmitting terminal 101
The second vision signal sent afterwards is compensated according to class of attenuation information；Wherein, control signal is believed according to the first video
Number determine.
Receiving terminal 102 is the recipient of vision signal, and transmitting terminal 101 is the sender of vision signal, therefore is carried again below
The method that video is compensated for transmitting terminal 101.
Fig. 6 is referred to, the embodiment of the present invention provides a kind of method of video comfort, and this method can apply to transmitting terminal
101, the flow of this method is described as follows：
S601：The first vision signal is sent to receiving terminal 102；
S602：Receive the control signal for the carrying class of attenuation information that receiving terminal 102 is sent；Wherein, class of attenuation information
For indicating attenuation degree of the vision signal in transmitting procedure；Control signal is that receiving terminal 102 is true according to the first vision signal
Fixed；
S603：The second vision signal sent afterwards is compensated according to the class of attenuation information of reception.
In the embodiment of the present invention, transmitting terminal 101 sends the first vision signal to receiving terminal 102, by transmission medium, such as
Coaxial cable, the first vision signal can decay, and the first vision signal for causing receiving terminal 102 to receive is the letter after decay
Number, therefore, receiving terminal 102 can be to the feedback control signal of transmitting terminal 101 so that transmitting terminal 101 can be according to control signal pair
The second vision signal sent after first vision signal compensates.So, the second vision signal of receiving terminal reception is exactly
Vision signal after the compensation of transmitting terminal 101, the video image picture that receiving terminal 102 receives are also more clear.
In the prior art, control signal is that first vision signal is compensated according to the balanced device inside receiving terminal 102
Obtain afterwards, therefore, control signal be also by equalizer compensation, so control signal occurs overcompensation phenomenon, first
The nonsynchronous phenomenon of signal occurs in the second vision signal occurred after vision signal superposing control signal, by receiving terminal 102
Phenomena such as video distortion, flicker just occurs in the video of decoding output.Fig. 7 is referred to, Fig. 7 regards to be provided in an embodiment of the present invention
The theory diagram of frequency monitoring system.What receiving terminal 102 provided in an embodiment of the present invention was not sent by balanced device to transmitting terminal 101
First vision signal compensates, and is compensated by the attenuation compensation module built in transmitting terminal 101, so instead to transmitting terminal
101 control signal may not pass through the compensation of balanced device, and the control signal fed back by receiving terminal 102 is superimposed upon through overcompensation
First vision signal is that the second vision signal will not cause the asynchronous of the second vision signal, and the video that receiving terminal 102 receives is drawn
Face is also with regard to being not in scintillation naturally.
Wherein, because transmitting terminal 101 itself compensates to the video to be sent, but transmitting terminal 101 is not aware that and wanted
The video of transmission passes through the attenuation degree of transmission medium, and the vision signal that receiving terminal 101 receives is through overdamping, with standard
Vision signal it is inconsistent.Therefore, receiving terminal 101 can obtain the video that transmitting terminal 101 is sent according to the vision signal of reception
The attenuation degree of signal.In the embodiment of the present invention, the attenuation degree of vision signal can be characterized with class of attenuation information.Decay
Class information can serve to indicate that attenuation degree of the vision signal in transmitting procedure.
In the embodiment of the present invention, the first vision signal of the receiving end/sending end 101 of receiving terminal 102 transmission can be according to first
Vision signal determines the class of attenuation information of the first vision signal.Because the first vision signal includes high-frequency signal, also including low
Frequency signal, and transmission medium is different to the attenuation degree of different frequency signals.Therefore, each frequency that the first vision signal includes
The attenuation degree of the vision signal of section is also different.Therefore, the first vision signal can be divided at least two by receiving terminal 102
Individual first video signal components, for example, the first vision signal can be divided into the first high frequency component signal and the first low frequency letter
Number component etc..Receiving terminal 102 is directed to each first video signal components, can be according to default each first video signal components
Initial characteristic values with receive each first video signal components actual characteristic value, it is determined that the reality of each first vision signal
Border pad value.
, can be according to each first video after receiving terminal 102 determines the actual attenuation value of each first vision signal
The actual attenuation value of component of signal determines the class of attenuation of corresponding first vision signal.In possible embodiment, due to height
The attenuation degree of frequency signal is bigger than the attenuation degree of low frequency signal, so receiving terminal 102 can be from multiple first vision signals point
In multiple actual attenuation values of amount, the actual attenuation value of maximum actual attenuation value, i.e. most high frequency component signal is chosen, according to selection
Actual attenuation value determine class of attenuation information corresponding to the first vision signal, i.e., by the class of attenuation corresponding to high frequency component signal
It is defined as the class of attenuation corresponding to the first vision signal.In possible embodiment, receiving terminal 102 can also regard from multiple first
In multiple actual attenuation values of frequency component of signal, the actual attenuation value of at least two first video signal components is chosen.Wherein, extremely
Few two video signal components are all high frequency component signal.According to the average value of at least two actual attenuation values of selection decay etc.
Level, as class of attenuation information corresponding to the first vision signal.
Because the first vision signal decays in transmitting procedure, therefore, the first vision signal that receiving terminal 101 receives
Actual characteristic value be also decay after characteristic value.So for each first video signal components, receiving terminal 102 can incite somebody to action
The difference of the actual characteristic value of the initial characteristic values of first vision signal and the first vision signal received is as the first vision signal
Actual attenuation value.The initial characteristic values of first video signal components, can regard transmitting terminal 101 as and receiving terminal 102 is prior
The initial characteristic values of the vision signal of agreement.Characteristic value can be the color carrier of the color carrier signal identification of the first vision signal
Characteristic value, naturally it is also possible to be other possible characteristic values, on the other hand, the embodiment of the present invention is not restricted.
Wherein, first video signal components can correspond at least one class of attenuation.Namely first video
The actual attenuation value of component of signal can be divided at least one class of attenuation, the corresponding actual attenuation of each class of attenuation
It is worth scope.For example, the first vision signal is divided into the first high frequency component signal and the first low-frequency signal components.First high frequency is believed
Actual attenuation value X corresponding to first class of attenuation of number component can be 0<X<8dB, actual attenuation corresponding to second class of attenuation
Value X can be 8<X<16dB, the like.Similarly, the first low-frequency signal components can also correspond at least one class of attenuation.
Here repeat no more.The quantity of the class of attenuation of each first video signal components can be with identical, can also be different.Receiving terminal
103 can be previously stored the corresponding relation of the class of attenuation of vision signal and actual attenuation value, so that it is determined that actual attenuation value
It is assured that the corresponding class of attenuation.
Receiving terminal 103 determines the class of attenuation information of the first vision signal, can will carry the class of attenuation information
Control signal feeds back to transmitting terminal 102 so that the class of attenuation information butt joint that transmitting terminal 101 carries according to the control signal of reception
Get off the vision signal to be sent, i.e. the second vision signal compensates, the second vision signal after compensation is sent to and connect
Receiving end 103, realize the compensation of vision signal.Wherein, control signal is that the first vision signal received according to receiving terminal 102 determines
, that is, the first vision signal not after overcompensation determines.Continuing with referring to Fig. 7, receiving terminal 102 is to transmitting terminal 101
Class of attenuation judgement is carried out by the first vision signal after attenuation compensation module for compensating, the result judged further according to the class of attenuation
The control signal for carrying class of attenuation information is fed back into transmitting terminal 102.
Transmitting terminal 101 is according to the class of attenuation information that the control signal of reception carries to the second vision signal for sending afterwards
Compensate, each second vision signal point that the second vision signal includes can be determined according to the class of attenuation information of reception
The class of attenuation corresponding to amount, so as to the corresponding relation according to the default class of attenuation and offset, regarded respectively according to each second
Offset corresponding to the class of attenuation of frequency component of signal, corresponding second video signal components are compensated.
Transmitting terminal 101 can divide to the second vision signal, be divided at least two second video signal components, institute
At least two second video signal components of division can be corresponding with least two first video signal components, that is, according to same
The rule of sample is divided.Transmitting terminal 101 can be previously stored the corresponding relation of the class of attenuation and offset, each class of attenuation
Corresponding fixed offset, it is determined that the class of attenuation corresponding to each second video signal components, can be according to the class of attenuation with mending
The corresponding relation of value is repaid, each second video signal components are compensated, so as to realize the compensation to the second vision signal.
After transmitting terminal 101 is to the second compensated video signal, the second vision signal after compensation can be sent to receiving terminal
102.Receiving terminal 102 receives the second vision signal after compensation, it can be determined that the actual attenuation value of the second vision signal of reception
Whether default first threshold is less than, default first threshold can be the pad value being previously set, or can also use decay
Spend to characterize, for indicating the pad value of video signal standard.If the actual attenuation value of the second vision signal after compensation is small
In or equal to default first threshold, it is believed that the decay of the second vision signal after compensation is less, then receiving terminal 102 can
So that the second vision signal to be exported, export to display 103.Because the decay of the second vision signal after compensation is less, now
The video pictures that the second vision signal for being shown on display 103 is formed meet user's request than more visible, Consumer's Experience compared with
It is good.
On the contrary, if the actual attenuation value of the second vision signal after compensation is more than default first threshold, it is believed that
The decay of the second vision signal after compensation or larger, if now receiving terminal 102 exports the second vision signal to display
Device 103, the definition for the video pictures that display 103 is shown is smaller, i.e., video pictures are not clear enough.Therefore, receiving terminal 102 can
To continue to determine the class of attenuation information of the second vision signal, and the control signal for carrying the class of attenuation information determined is fed back
To the transmitting terminal 101, notice transmitting terminal 101 according to the class of attenuation information of determination to the 3rd vision signal that sends afterwards after
It is continuous to compensate.This process may be referred to the mistake that above-mentioned receiving terminal 102 and transmitting terminal 101 compensate to the second vision signal
Journey, repeat no more here.
In the embodiment of the present invention, receiving terminal 102 judges the actual attenuation value of the vision signal received every time, according to actually declining
The decay for the vision signal that depreciation determines to receive reaches standard, i.e., default first threshold, then exports the vision signal of reception.It is no
Then, the class of attenuation according to corresponding to determining the actual attenuation value of the vision signal of reception, and the control that class of attenuation information will be carried
Signal processed feeds back to transmitting terminal 101, and notice transmitting terminal 101 compensates to the vision signal sent afterwards.
In the embodiment of the present invention, receiving terminal 102 is before the second vision signal is exported, it can be determined that the second vision signal
Whether class of attenuation information is consistent with the class of attenuation information of the first vision signal, if unanimously, can determine transmitting terminal 101
Compensation failure to the second vision signal, now receiving terminal 102 can export fault message, and the fault message is used to indicate to send
Break down at end 101.For example, receiving terminal 102 can export " transmitting terminal breaks down ", " attenuation compensation mistake can also be exported
Lose ", display 103 can be shown fault message, for use in that can position failure.
In the embodiment of the present invention, if receiving terminal 102 determines the first video signal interruption or the second video signal interruption,
When being just to determine video breaks, such as changing transmitting terminal 101, can to receiving the first vision signal or the second vision signal,
It is exactly that the transmission channel of vision signal is resetted.Because when video does not interrupt, receiving terminal 102 feeds back to transmitting terminal 101
Control signal is obtained according to the vision signal of reception.If video breaks, it is believed that be regarding transmitted by transmitting terminal 101
Frequency signal may be changed, if the control signal determined before still is fed back into transmitting terminal 101, notify transmitting terminal 101
The vision signal to be sent is compensated according to receiving terminal control signal, it is clear that inaccurate.Therefore, in the embodiment of the present invention, connect
For receiving end 102 once it is determined that video terminal, the transmission channel that can dock receipts vision signal are resetted, such receiving terminal 102 is anti-
The control signal for being fed to transmitting terminal 101 is that the vision signal received after reset obtains, and the control so obtained is exactly pin
The vision signal of receiving terminal 102 is sent to transmitting terminal 101 so that transmitting terminal 101 can be according to accurate control signal pair
The vision signal to be sent afterwards compensates.
Video comfort method provided in an embodiment of the present invention, transmitting terminal pass through coaxially depending on being fed back by way of controlling according to receiving terminal
The class of attenuation information of vision signal the vision signal sent afterwards is compensated.Because what coaxial video mode was fed back declines
It is not influenceed by balanced device in receiving terminal to subtract class information, from without the asynchronous of vision signal, would not be caused
Video distortion, the phenomenon of flicker, better user experience just occurs in the image that receiving terminal receives.
Equipment provided in an embodiment of the present invention is introduced below in conjunction with the accompanying drawings.
Fig. 8 is referred to, based on same inventive concept, the embodiment of the present invention provides a kind of digital video recorder, the numeral
Video cassette recorder includes：Receiving unit 801, determining unit 802 and feedback unit 803.
Wherein, receiving unit 801 can be used for the first vision signal of the transmission of receiving end/sending end 101.Determining unit 802 can
For the first vision signal according to reception, the class of attenuation information of the first vision signal is determined, wherein, class of attenuation information
For indicating attenuation degree of the vision signal in transmitting procedure.Feedback unit 803 can be used for that class of attenuation information will be carried
Control signal feed back to transmitting terminal 101, notice transmitting terminal 101 is believed the second video sent afterwards according to class of attenuation information
Number compensate, wherein, control signal is determined according to the first vision signal.
Optionally, determining unit 802 is specifically used for：
First vision signal of reception is divided at least two first video signal components；
For each first video signal components, according to the initial characteristic values of default each first video signal components with
The actual characteristic value of each first video signal components received, it is determined that the actual attenuation value of each first vision signal；
The class of attenuation of corresponding first vision signal is determined according to the actual attenuation value of each first video signal components.
Optionally, receiving unit 801 is additionally operable to：
The second vision signal that the transmitting terminal 101 is sent is received, wherein, the second vision signal is by transmitting terminal 101
Vision signal after compensation；
Determining unit 802 is additionally operable to：
Whether the actual attenuation value for the second vision signal for judging to receive is less than default first threshold；
If so, then the second vision signal is exported；
Otherwise, it is determined that the class of attenuation information of the second vision signal, and the control that the class of attenuation information determined will be carried
Signal processed feeds back to transmitting terminal 101, and notice transmitting terminal 101 is according to the class of attenuation information of determination to the 3rd video that sends afterwards
Signal continues to compensate.
Optionally, the digital video recorder also includes reset unit, is used for：
If it is determined that the first video signal interruption or the second video signal interruption, then regard to the first vision signal of reception or second
The transmission channel of frequency signal is resetted.
Optionally, determining unit 802 is additionally operable to：
Before the second vision signal is exported, judge whether the class of attenuation information of the second vision signal is believed with the first video
Number class of attenuation information it is consistent,
If consistent, fault message is exported, wherein, fault message is used to indicate that transmitting terminal 101 breaks down.
On the introduction of this partial content, method part is referred to, is seldom repeated.
Fig. 9 is referred to, based on same inventive concept, the embodiment of the present invention also provides a kind of digital video recorder, the number
Word video cassette recorder includes：Memory 901 and processor 902.Memory 901 can be connected by bus with processor 902,
Or it can also be connected by special connecting line with processor 902.
Wherein, memory 901 can be used for storage program.Processor 902 can be used for reading the journey in memory 901
Sequence, perform following process：
The first vision signal that receiving end/sending end 101 is sent；
According to the first vision signal of reception, the class of attenuation information of the first vision signal is determined, wherein, class of attenuation letter
Cease the attenuation degree for indicating vision signal in transmitting procedure；
The control signal for carrying class of attenuation information is fed back into transmitting terminal 101, notice transmitting terminal 101 is according to the decay
Class information compensates to the second vision signal sent afterwards；Wherein, control signal is determined according to the first vision signal
's.
Optionally, processor 902 is specifically used for：
First vision signal of reception is divided at least two first video signal components；
For each first video signal components, according to the initial characteristic values of default each first video signal components with
The actual characteristic value of each first video signal components received, it is determined that the actual attenuation value of each first vision signal；
The class of attenuation of corresponding first vision signal is determined according to the actual attenuation value of each first video signal components,
Wherein, first video signal components correspond at least one class of attenuation.
Optionally, processor 902 is additionally operable to：
The second vision signal that the transmitting terminal 101 is sent is received, wherein, the second vision signal is by transmitting terminal 101
Vision signal after compensation；
Whether the actual attenuation value for the second vision signal for judging to receive is less than default first threshold；
If so, then the second vision signal is exported；
Otherwise, it is determined that the class of attenuation information of the second vision signal, and the control that the class of attenuation information determined will be carried
Signal processed feeds back to transmitting terminal 101, and notice transmitting terminal 101 is according to the class of attenuation information of determination to the 3rd video that sends afterwards
Signal continues to compensate.
Optionally, processor 902 is additionally operable to：
If it is determined that the first video signal interruption or the second video signal interruption, then regard to the first vision signal of reception or second
The transmission channel of frequency signal is resetted.
Optionally, processor 902 is additionally operable to：
Before the second vision signal is exported, judge whether the class of attenuation information of the second vision signal is believed with the first video
Number class of attenuation information it is consistent,
If consistent, fault message is exported, wherein, fault message is used to indicate that transmitting terminal 101 breaks down.
Optionally, the entity device in Fig. 8 corresponding to receiving unit 801, determining unit 802 and feedback unit 803
To be the processor 902 in Fig. 9.Wherein, memory 901 is not required what can be lacked in Fig. 9, therefore is illustrated with dotted line.
Figure 10 is referred to, based on same inventive concept, the embodiment of the present invention provides a kind of video camera, and the video camera includes：
Transmitting element 1001, receiving unit 1002 and compensating unit 1003.
Wherein, transmitting element 1001 can be used for sending the first vision signal to receiving terminal 102.Receiving unit 1002 can be with
For the control signal for the carrying class of attenuation information for receiving the transmission of receiving terminal 102, wherein, class of attenuation information regards for instruction
Attenuation degree of the frequency signal in transmitting procedure, control signal are that receiving terminal 102 determines according to the first vision signal.Compensation is single
Member 1003 can be used for compensating the second vision signal sent afterwards according to the class of attenuation information of reception.
Optionally, compensating unit 1003 is specifically used for：
Determine that each second video signal components that the second vision signal includes are corresponding according to the class of attenuation information of reception
The class of attenuation；
According to the default class of attenuation and the corresponding relation of offset, declining according to each second video signal components respectively
Subtract offset corresponding to grade, corresponding second video signal components are compensated.
Optionally,
Receiving unit 1002 is additionally operable to：Receive the class of attenuation information for the vision signal of carrying second that receiving terminal 102 is sent
Control signal.
Compensating unit 1003 is additionally operable to：According to the class of attenuation information of the second vision signal of reception to send afterwards
Three vision signals continue to compensate.
On the introduction of this partial content, method part is referred to, is seldom repeated.
Figure 11 is referred to, based on same inventive concept, the embodiment of the present invention also provides a kind of video camera, and the video camera includes
Memory 1101 and processor 1102.Memory 1101 can be connected by bus with processor 1102, or can also be led to
Special connecting line is crossed to be connected with processor 1102.
Wherein, memory 1101 can be used for storage program.Processor 1102 can be used for reading in memory 1101
Program, perform following process：
The first vision signal is sent to receiving terminal 102；
The control signal for the carrying class of attenuation information that receiving terminal 102 is sent is received, wherein, class of attenuation information is used to refer to
Show attenuation degree of the vision signal in transmitting procedure, control signal is that receiving terminal 102 determines according to the first vision signal；
The second vision signal sent afterwards is compensated according to the class of attenuation information of reception.
Optionally, processor 1102 is specifically used for：
Determine that each second video signal components that the second vision signal includes are corresponding according to the class of attenuation information of reception
The class of attenuation；
According to the default class of attenuation and the corresponding relation of offset, declining according to each second video signal components respectively
Subtract offset corresponding to grade, corresponding second video signal components are compensated.
Optionally, processor 1102 is additionally operable to：
Receive the control signal of the class of attenuation information for the vision signal of carrying second that receiving terminal 102 is sent.
The 3rd vision signal sent afterwards is continued according to the class of attenuation information of the second vision signal of reception
Compensation.
Optionally, the entity device in Figure 10 corresponding to receiving unit 1002, determining unit and feedback unit may each be
Processor 1102 in Figure 11.Wherein, memory 1101 is not required what can be lacked in Figure 11, therefore is illustrated with dotted line.
The embodiment of the present invention also provides a kind of computer-readable storage medium, wherein, computer-readable storage medium is stored with computer
Instruction, when computer instruction is run on computers so that computer performs the side as described in any one of Fig. 5 and/or Fig. 6
Method.
It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function
The division progress of module, can be as needed and by above-mentioned function distribution by different function moulds for example, in practical application
Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of work(described above
Energy.The specific work process of the system, apparatus, and unit of foregoing description, it may be referred to corresponding in preceding method embodiment
Journey, it will not be repeated here.
In several embodiments provided by the present invention, it should be understood that disclosed apparatus and method, it can be passed through
Its mode is realized.For example, device embodiment described above is only schematical, for example, the module or unit
Division, only a kind of division of logic function, can there is other dividing mode, such as multiple units or component when actually realizing
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or
The mutual coupling discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical scheme of the application is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
It is each that equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the application
The all or part of step of embodiment methods described.And foregoing storage medium includes：General serial bus USB
(Universal Serial Bus flash disk), mobile hard disk, read-only storage (Read-Only Memory, ROM),
Random access memory (Random Access Memory, RAM), magnetic disc or CD etc. are various can be with store program codes
Medium.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (13)
- A kind of 1. method of video comfort, it is characterised in that including：The first vision signal that receiving end/sending end is sent；According to the first vision signal of reception, the class of attenuation information of first vision signal is determined；Wherein, described decay etc. Level information is used to indicate attenuation degree of first vision signal in transmitting procedure；The control signal for carrying the class of attenuation information is fed back into the transmitting terminal, notifies the transmitting terminal to be declined according to Subtract class information to compensate the second vision signal sent afterwards；Wherein, the control signal is regarded according to described first What frequency signal determined.
- 2. the method as described in claim 1, it is characterised in that according to the first vision signal of reception, determine that described first regards The class of attenuation information of frequency signal, including：First vision signal of reception is divided at least two first video signal components；For each first video signal components, according to the initial characteristic values of default each first video signal components with The actual characteristic value of each first video signal components received, determine the actual attenuation of each first vision signal Value；The class of attenuation of corresponding first vision signal is determined according to the actual attenuation value of each first video signal components.
- 3. method as claimed in claim 2, it is characterised in that methods described also includes：Receive the second vision signal that the transmitting terminal is sent；Wherein, second vision signal is after sending end compensating Vision signal；Whether the actual attenuation value for second vision signal for judging to receive is less than default first threshold；If so, then second vision signal is exported；Otherwise, it is determined that the class of attenuation information of second vision signal, and the control that the class of attenuation information determined will be carried Signal processed feeds back to the transmitting terminal, notify the transmitting terminal according to the class of attenuation information of the determination to send afterwards Three vision signals continue to compensate.
- 4. method as claimed in claim 3, it is characterised in that methods described also includes：If it is determined that first video signal interruption or second video signal interruption, then to receiving first vision signal Or the transmission channel of second vision signal is resetted.
- 5. method as claimed in claim 3, it is characterised in that methods described also includes：Before second vision signal is exported, judge the class of attenuation information of second vision signal whether with described the The class of attenuation information of one vision signal is consistent；If consistent, fault message is exported；Wherein, the fault message is used to indicate that the transmitting terminal breaks down.
- A kind of 6. method of video comfort, it is characterised in that including：The first vision signal is sent to receiving terminal；Receive the control signal for the carrying class of attenuation information that the receiving terminal is sent；Wherein, the class of attenuation information is used for Indicate attenuation degree of the vision signal in transmitting procedure；The control signal is that the receiving terminal is believed according to first video Number determine；The second vision signal sent afterwards is compensated according to the class of attenuation information of reception.
- 7. method as claimed in claim 6, it is characterised in that according to the class of attenuation information of reception to sending afterwards Second vision signal compensates, including：Each second video signal components that second vision signal includes are determined according to the class of attenuation information of reception The corresponding class of attenuation；According to the default class of attenuation and the corresponding relation of offset, declining according to each second video signal components respectively Subtract offset corresponding to grade, corresponding second video signal components are compensated.
- 8. method as claimed in claims 6 or 7, it is characterised in that methods described also includes：Receive the control signal of the class of attenuation information for carrying second vision signal that the receiving terminal is sent；The 3rd vision signal sent afterwards is continued according to the class of attenuation information of second vision signal of reception Compensation.
- A kind of 9. digital video recorder, it is characterised in that including：Receiving unit, the first vision signal sent for receiving end/sending end；Determining unit, for the first vision signal according to reception, determine the class of attenuation information of first vision signal；Its In, the class of attenuation information is used to indicate attenuation degree of the vision signal in transmitting procedure；Feedback unit, for the control signal for carrying the class of attenuation information to be fed back into the transmitting terminal, notify the hair Sending end compensates according to the class of attenuation information to the second vision signal sent afterwards；Wherein, the control signal is Determined according to first vision signal.
- A kind of 10. digital video recorder, it is characterised in that including：Memory, for storage program；Processor, for reading the program in the memory, perform following process：The first vision signal that receiving end/sending end is sent；According to the first vision signal of reception, the class of attenuation information of first vision signal is determined；Wherein, described decay etc. Level information is used to indicate attenuation degree of the vision signal in transmitting procedure；The control signal for carrying the class of attenuation information is fed back into the transmitting terminal, notifies the transmitting terminal to be declined according to Subtract class information to compensate the second vision signal sent afterwards；Wherein, the control signal is regarded according to described first What frequency signal determined.
- A kind of 11. video camera, it is characterised in that including：Transmitting element, for sending the first vision signal to receiving terminal；Receiving unit, the control signal of the carrying class of attenuation information sent for receiving the receiving terminal；Wherein, the decay Class information is used to indicate attenuation degree of the vision signal in transmitting procedure；The control signal is the receiving terminal according to institute State the determination of the first vision signal；Compensating unit, the second vision signal sent afterwards is compensated for the class of attenuation information according to reception.
- A kind of 12. video camera, it is characterised in that including：Memory, for storage program；Processor, for reading the program in the memory, perform following process：The first vision signal is sent to receiving terminal；Receive the control signal for the carrying class of attenuation information that the receiving terminal is sent；Wherein, the class of attenuation information is used for Indicate attenuation degree of the vision signal in transmitting procedure；The control signal is that the receiving terminal is believed according to first video Number determine；The second vision signal sent afterwards is compensated according to the class of attenuation information of reception.
- 13. a kind of computer-readable storage medium, it is characterised in that the computer-readable storage medium is stored with computer instruction, works as institute When stating computer instruction and running on computers so that computer is performed as any one of claim 1-5 and/or 6-8 Method.
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