CN103634599B - A kind of method for processing video frequency, device and display device - Google Patents
A kind of method for processing video frequency, device and display device Download PDFInfo
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- CN103634599B CN103634599B CN201210311732.3A CN201210311732A CN103634599B CN 103634599 B CN103634599 B CN 103634599B CN 201210311732 A CN201210311732 A CN 201210311732A CN 103634599 B CN103634599 B CN 103634599B
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Abstract
The invention provides a kind of method for processing video frequency, device and display device, methods described includes：First frame of the video sequence group obtained according to default frame number packet is compared relative to the motion vector of last frame with predetermined threshold value；According to result of the comparison, the video sequence group is transmitted.The present invention is by video sequence packet transaction, by comparing the frame of video sequence group first relative to last frame motion vector and predetermined threshold value, according to different comparative results, carry out different transmission, the data volume of transmission can be reduced, the transmission speed of liquid crystal display is lifted, and then improves picture refreshing rate, improve the video processing capabilities of liquid crystal display；And be easier to realize, cost is relatively low.
Description
Technical field
The present invention relates to field of display, more particularly to a kind of method for processing video frequency, device and display device.
Background technology
Current field of display, the research about coding and decoding video and Video processing is fewer, is substantially at bud,
Because the storage capacity of display is limited with video data disposal ability, and general video processnig algorithms complexity it is higher be difficult
The requirement of liquid crystal display (Liquid Crystal Display, LCD) is met, due to clock when algorithm is generally required to be integrated in
Among register (TCON) processed or driving integrated chip (DIC), at present, some TCON and DIC producers can be integrated with product
The less algorithm of some amounts of calculation, for example, analysis frame rate control (FRC) algorithm, dither algorithm, image sharpening etc. are solved
Many GTG display problems and optimization image frame, but the video data disposal ability of liquid crystal display also fails to obtain fully at present
Raising.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of method for processing video frequency, device and display device, can
Improve video processing capabilities.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of method for processing video frequency, methods described includes：
First frame of the video sequence group that will be obtained according to default frame number packet relative to last frame motion vector with
Predetermined threshold value is compared；
According to result of the comparison, the video sequence group is transmitted.
Wherein, the default frame number is the positive integer less than or equal to 8.
Further, methods described also includes：
Video sequence to being input into is grouped according to default frame number, obtains video sequence group.
Wherein, the motion of first frame relative to last frame of the video sequence group that the default frame number packet of the basis is obtained
Vector is：
According toCalculate motion vector of first frame relative to last frame in the video sequence group；
Wherein,It is the value of the motion vector in x directions,It is the value of the motion vector in y directions, the WpIt is correction factor constant.
Wherein, it is described according to comparative result, the video sequence group is transmitted for：
When the motion vector is more than or equal to the predetermined threshold value, in the calculating video sequence group between consecutive frame
Residual error and quantified, the residual error that the video data and quantization for transmitting the first frame of the video sequence group are obtained.
Further, methods described also includes：
The residual error that video data and quantization according to the first frame for receiving are obtained, reconstructs consecutive frame, recovers the video
Sequence group.
Wherein, it is described according to comparative result, the video sequence group is transmitted for：
When the motion vector is less than the predetermined threshold value, transmit the video sequence group the first frame and last
The video data of frame.
Further, methods described also includes：
According to the first frame and the video data of last frame that receive, according toWeight
Structure intermediate frame；Wherein, the m is the value of the default frame number；The i is the frame number of the intermediate frame of current reconstruct；The F1
It is the video data of the first frame；The FmIt is the video data of last frame.
A kind of video process apparatus, the video process apparatus include：Compare transmission unit；Wherein,
It is described to compare transmission unit, for the first frame of video sequence group that will be obtained according to default frame number packet relative to
The motion vector of last frame is compared with predetermined threshold value；And the video sequence group is passed according to comparative result
It is defeated.
Wherein, the default frame number is the positive integer less than or equal to 8.
Further, the video process apparatus also include：Resolving cell, for the video sequence to being input into according to default
Frame number is grouped, and obtains video sequence group and be transferred to compare transmission unit.
Wherein, it is described to compare transmission unit, it is additionally operable to basisCalculate the first frame to last frame
Motion vector；Wherein,It is the value of the motion vector in x directions,It is the value of the motion vector in y directions, the WpIt is amendment
Coefficient constant.
Wherein, it is described to compare transmission unit, specifically for when the motion vector be more than or equal to the predetermined threshold value when,
Calculate the residual error in the video sequence group between consecutive frame and quantified, the first frame for transmitting the video sequence group is regarded
The residual error that frequency evidence and quantization are obtained.
Further, the video process apparatus also include：Reset unit, for the video according to the first frame for receiving
The residual error that data and quantization are obtained, reconstructs consecutive frame, recovers the video sequence group.
Wherein, it is described to compare transmission unit, specifically for when the motion vector is less than the predetermined threshold value, transmitting
First frame of the video sequence group and the video data of last frame.
Further, the video process apparatus also include：Reset unit, for according to the first frame for receiving and finally
The video data of one frame, according toReconstruct intermediate frame；Wherein, the m is the default frame number
Value；The i is the frame number of the intermediate frame of current reconstruct；The F1It is the video data of the first frame；The FmIt is last frame
Video data.
A kind of display device, including video process apparatus as described above.
Wherein, the video process apparatus are integrated in the clock-control register (TCON) of display device or drive integrated core
In piece (DIC).
The present invention moves arrow by video sequence packet transaction, comparing the frame of video sequence group first relative to last frame
Amount and predetermined threshold value, according to different comparative results, carry out different transmission, can reduce the data volume of transmission, and lifting is aobvious
The transmission speed of showing device, and then picture refreshing rate is improved, improve the video processing capabilities of display device；And it is easier to reality
Existing, cost is relatively low.
Brief description of the drawings
Fig. 1 is that method for processing video frequency of the present invention realizes schematic flow sheet；
Fig. 2 is the structural representation of video process apparatus of the present invention；
Description of reference numerals：
20- resolving cells；21- compares transmission unit；22- reset units.
Specific embodiment
Basic thought of the invention is：First frame of the video sequence group that will be obtained according to default frame number packet is relative to most
The motion vector of a later frame is compared with predetermined threshold value；According to result of the comparison, the video sequence group is transmitted.
It is by the following examples and referring to the drawings, right to make the object, technical solutions and advantages of the present invention become more apparent
The present invention is further described.
What Fig. 1 showed method for processing video frequency of the present invention realizes flow, as shown in figure 1, methods described comprises the steps：
Step 101, the fortune of first frame relative to last frame of the video sequence group that will be obtained according to default frame number packet
Dynamic vector is compared with predetermined threshold value；
Wherein, the default frame number is the positive integer less than or equal to 8, here, although the frame number for once transmitting is more, image
What is be transmitted is faster, but video data can also be easier to lose, and cause the image for recovering to be affected, therefore, generally by 8 frames
As one group, specifically single treatment can be carried out every 8 frames, i.e., 1-8 frames, 9-16 frames ... be carried out such as step successively
101 treatment, it should be understood that, it is also possible to according to actual conditions, be set to for default frame number small by the accuracy requirement that such as image recovers
In 8 positive integer；The predetermined threshold value can be configured according to actual needs, here, when the predetermined threshold value is set
It is smaller, the video quality for finally giving is better.
The selection mode of the predetermined threshold value can be：Take between the consecutive frame of all frames in one group of video sequence group
The average value of motion vector, obtains average frame, then calculates average frame relative to the motion vector of the frame of group first, and this is moved
Vector or the motion vector into multiple proportion motion vector as predetermined threshold value；It is of course also possible to it is relative to calculate average frame
In this group of motion vector of last frame, using the motion vector or the motion vector into multiple proportion motion vector as default
Threshold value；The concrete numerical value of multiple, can be set according to actual needs.
The motion vector of first frame relative to last frame of the video sequence group that the default frame number packet of the basis is obtained
Can be：
TCON or DIC according toCalculate fortune of first frame relative to last frame in the video sequence group
Dynamic vector；Wherein,It is the value of the motion vector in x directions,It is the value of the motion vector in y directions, the WpFor amendment is
Number constant, is usually arranged as 1, and motion vector can be compensated.
Preferably, before this step, step 100 can also be included, the video sequence to being input into enters according to default frame number
Row packet, obtains video sequence group.
Step 102, according to result of the comparison, is transmitted to the video sequence group；
Specifically, when the motion vector is more than or equal to the predetermined threshold value, TCON or DIC calculates the video sequence
Residual error in row group between consecutive frame is simultaneously quantified, and is transmitted the video data of the first frame of the video sequence group and is quantified
The residual error for arriving；When the motion vector is less than the predetermined threshold value, TCON or DIC transmits the first of the video sequence group
The video data of frame and last frame；
Wherein, the video data to first frame or last frame can be transmitted by taking 8bit；To described
Residual error, can be entered due to the pixel value between consecutive frame relatively using the small mark quantization methods of amount of calculation using 4bit
Row quantifies to recover completely, and then by taking less transmitted bit, reduces the data volume of transmission, improves transmission speed
Degree.
Further, the above method can also include step 103, according to transmission come video data, carry out the reconstruct of frame,
Recover the video sequence group；
Specifically, according to the first frame for receiving the residual error that video data and quantization is obtained, reconstructs consecutive frame, recovers institute
State video sequence group；Here, the residual error is the difference of the video data between consecutive frame, is receiving the video counts of the first frame
After according to the residual error obtained with the first frame and the second frame video data quantization, video data and the residual error to the first frame are carried out instead
Quantization decoder, then carries out add operation, will the first frame video data add first frame and the second frame video data
Residual error, then can obtain the second frame video data, the like, you can obtain the video data of each frame in video sequence group.
According to the first frame and the video data of last frame that receive, according toWeight
Structure intermediate frame；Wherein, the m is the value of the default frame number；The i is the frame number of the intermediate frame of current reconstruct；The F1
It is the video data of the first frame；The FmIt is the video data of last frame；
Here, the picture quality after reconstruct is compared with original image, it is necessary to meet signal-noise power ratio PSNR ＞ 32dB.
Fig. 2 shows the structural representation of video process apparatus of the present invention, as shown in Fig. 2 the video process apparatus include：
Compare transmission unit 21；Wherein,
Described to compare transmission unit 21, the first frame of the video sequence group for will be obtained according to default frame number packet is relative
It is compared with predetermined threshold value in the motion vector of last frame；And the video sequence group is passed according to comparative result
It is defeated.
Further, the video process apparatus also include resolving cell 20, for video data (the i.e. video that will be input into
Sequence) it is grouped for one group according to default frame number, and the video sequence group that will be obtained after packet is transferred to and described compares transmission
Unit 21.
Preferably, the video sequence group simultaneous transmission after packet can be compared transmission unit 21.
Certainly, it is described to compare fortune of first frame relative to last frame that transmission unit 21 be not required in video sequence group
Dynamic vector carries out clear and definite division operation before being compared with predetermined threshold value, need to be only analyzed every default frame number and compare place
Reason, for example, successively to 8 frames, carrying out single treatment, i.e., is processed as above to 1-8 frames, 9-16 frames ... successively
Wherein, the default frame number is the positive integer less than or equal to 8.Here, although the frame number for once transmitting is more, image
What is be transmitted is faster, but video data can also be easier to lose, and cause the image for recovering to be affected, therefore, generally by 8 frames
Processed as one group, video sequence can be specifically grouped for one group according to 8 frame, obtained video sequence group, or often
Every 8 frames, single treatment is carried out, i.e., treatment thereto is carried out to 1-8 frames, 9-16 frames ... successively,
It should be understood that, it is also possible to according to actual conditions, be set smaller than for default frame number by the accuracy requirement that such as image recovers
8 positive integer；The predetermined threshold value can be configured according to actual needs, here, when predetermined threshold value setting
Smaller, the video quality for finally giving is better.
Wherein, it is described to compare transmission unit 21, specifically for basisThe first frame is calculated relative to most
The motion vector of a later frame；Wherein,It is the value of the motion vector in x directions,It is the value of the motion vector in y directions, institute
State WpIt is correction factor constant, is usually arranged as 1, motion vector can be compensated.
Wherein, it is described to compare transmission unit 21, specifically for being more than or equal to the predetermined threshold value when the motion vector
When, calculate the residual error in the video sequence group between consecutive frame and quantified, transmit the first frame of the video sequence group
Video data and the residual error that obtains of quantization；Wherein, the video data to first frame can be passed by taking 8bit
It is defeated；The residual error, can be adopted due to the pixel value between consecutive frame relatively using the small mark quantization methods of amount of calculation
Recover completely by being quantified with 4bit, and then by taking less transmitted bit, reduce the data volume of transmission, lifted
Transmission speed；
Further, the video process apparatus also include reset unit 22, for comparing transmission unit 21 according to described
Comparative result, recover the video sequence group；
Specifically, it is residual that reset unit 22, the video data of the first frame received specifically for basis and quantization are obtained
Difference, reconstructs consecutive frame, recovers the video sequence group；Here, the residual error is the difference of the video data between consecutive frame,
After receiving the residual error that the video data and the first frame and the second frame video data quantization of the first frame are obtained, to the video of the first frame
Data and the residual error carry out inverse quantization decoding, then carry out add operation, will the first frame video data plus described the
The residual error of one frame and the second frame video data, then can obtain the video data of the second frame, the like, you can obtain video sequence
The video data of each frame in group.
Wherein, it is described to compare transmission unit 21, specifically for when the motion vector is less than the predetermined threshold value, passing
First frame of the defeated video sequence group and the video data of last frame；
The reset unit 22, the first frame and the video data of last frame received specifically for basis, according toReconstruct intermediate frame；Wherein, the m is the value of the default frame number；The i is current weight
The frame number of the intermediate frame of structure；The F1 is the video data of the first frame；The FmIt is the video data of last frame.
Preferably, the picture quality after reconstruct is compared with original image, it is necessary to meet signal noise power ratio PSNR ＞ 32dB.
The present invention also provides a kind of display device comprising video process apparatus as described above, wherein, the Video processing
Device can be integrated in the TCON of display device or DIC.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.
Claims (14)
1. a kind of method for processing video frequency, it is characterised in that methods described includes：
First frame of the video sequence group that will be obtained according to default frame number packet relative to last frame motion vector with it is default
Threshold value is compared；
According to result of the comparison, the video sequence group is transmitted；Wherein,
It is described the video sequence group is transmitted according to result of the comparison, be：
It is residual between consecutive frame in the calculating video sequence group when the motion vector is more than or equal to the predetermined threshold value
Differ from and quantified, the residual error that the video data and quantization for transmitting the first frame of the video sequence group are obtained；
When the motion vector is less than the predetermined threshold value, first frame and last frame of the video sequence group are transmitted
Video data.
2. method according to claim 1, it is characterised in that the default frame number is the positive integer less than or equal to 8.
3. method according to claim 1, it is characterised in that methods described also includes：
Video sequence to being input into is grouped according to default frame number, obtains video sequence group.
4. method according to claim 1, it is characterised in that the video sequence group that the default frame number packet of the basis is obtained
The first frame be relative to the motion vector of last frame：
According toCalculate motion vector of first frame relative to last frame in the video sequence group；Its
In, | MVx| it is the value of the motion vector in x directions, | MVY| it is the value of the motion vector in y directions, the WpIt is correction factor constant.
5. method according to claim 1, it is characterised in that methods described also includes：
The residual error that video data and quantization according to the first frame for receiving are obtained, reconstructs consecutive frame, recovers the video sequence
Group.
6. method according to claim 1, it is characterised in that methods described also includes：
According to the first frame and the video data of last frame that receive, according toIn the middle of reconstruct
Frame；Wherein, the m is the value of the default frame number；The i is the frame number of the intermediate frame of current reconstruct；The F1It is first
The video data of frame；The FmIt is the video data of last frame.
7. a kind of video process apparatus, it is characterised in that the video process apparatus include：Compare transmission unit；Wherein,
It is described to compare transmission unit, for the first frame of the video sequence group for obtaining will to be grouped relative to last according to default frame number
The motion vector of one frame is compared with predetermined threshold value；And the video sequence group is transmitted according to comparative result；Its
In,
It is described to compare transmission unit, specifically for：
It is residual between consecutive frame in the calculating video sequence group when the motion vector is more than or equal to the predetermined threshold value
Differ from and quantified, the residual error that the video data and quantization for transmitting the first frame of the video sequence group are obtained；
When the motion vector is less than the predetermined threshold value, first frame and last frame of the video sequence group are transmitted
Video data.
8. video process apparatus according to claim 7, it is characterised in that the default frame number is less than or equal to 8 just
Integer.
9. video process apparatus according to claim 7, it is characterised in that the video process apparatus also include：Decompose
Unit, for being grouped the video sequence being input into according to default frame number, obtains video sequence group and is transferred to compare transmission
Unit.
10. video process apparatus according to claim 7, it is characterised in that described to compare transmission unit, are additionally operable to basisCalculate the first frame to the motion vector of last frame；Wherein, | MVx| it is the motion vector in x directions
Value, | MVY| it is the value of the motion vector in y directions, the WpIt is correction factor constant.
11. video process apparatus according to claim 7, it is characterised in that the video process apparatus also include：Reset
Unit, for the residual error that the video data according to the first frame for receiving and quantization are obtained, reconstructs consecutive frame, recovers the video
Sequence group.
12. video process apparatus according to claim 7, it is characterised in that the video process apparatus also include：Reset
Unit, the first frame and the video data of last frame received for basis, according toWeight
Structure intermediate frame；Wherein, the m is the value of the default frame number；The i is the frame number of the intermediate frame of current reconstruct；The F1
It is the video data of the first frame；The FmIt is the video data of last frame.
13. a kind of display devices, it is characterised in that the display device includes regarding as described in any one of claim 9 to 16
Frequency processing device.
14. display devices according to claim 13, it is characterised in that the video process apparatus are integrated in display device
Clock-control register TCON or drive integrated chip DIC.
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| CN109640170B (en) * | 2018-12-04 | 2021-02-19 | 广东力昂电子科技有限公司 | Speed processing method of self-shooting video, terminal and storage medium |
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| CN102082896A (en) * | 2011-03-04 | 2011-06-01 | 中山大学 | Method for treating video of liquid crystal display device |
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| CN102006479A (en) * | 2010-11-30 | 2011-04-06 | 北方工业大学 | Scene-switching-oriented multiple description video coding method |
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