CN104836937B - The processing unit and method of dynamic image smoothing are carried out using overvoltage drive function - Google Patents
The processing unit and method of dynamic image smoothing are carried out using overvoltage drive function Download PDFInfo
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Abstract
The invention discloses processing units and method that dynamic image smoothing is carried out using overvoltage drive function.Smoothing techniques device includes an image information generator and an overvoltage drive circuit.Image information generator detects continuous multiple frames of an image, and it includes a present frames and a previous frame, when one first numerical value difference of a second value of present frame and previous frame opposite position, generates one first image information；When the second value of present frame is identical as the first numerical value of previous frame opposite position, one second image information is generated.Overvoltage drive circuit generates a first object value between the first numerical value and second value according to the first image information, and first object value is replaced to the second value of the opposite position of a present frame of two successive frames；Or overvoltage drive circuit generates one second target value according to the second image information, and the second target value is replaced to the second value of the opposite position of the present frame of two successive frames.
Description
Technical field
The present invention relates to a kind of image processing apparatus and methods；It is carried out in particular it relates to a kind of using overvoltage drive function
The processing unit and method of the smoothing of dynamic image.
Background technique
In conventional images play-back technology, the input of image, such as the picture 22(AABB of repeating frame) or 23(AABBB), often
Shake (Judder) rough problem occurs in display, it is therefore desirable to carry out image procossing, such as estimation (Motion
Estimation, ME) or motion compensation (Motion Compensation, MC) in the hope of more smoothly result of broadcast.Such place
Reason mode commonly referred to as solves shake (De-judder).
However, general solution dither method often expends vast resources and production cost, therefore how to provide a kind of solution shake
The method for smoothing image data, actually one is badly in need of overcoming the problems, such as.
Summary of the invention
An object of the present invention is providing a kind of smoothing techniques device of image motion, utilizes overvoltage drive circuit tune
The effect of numerical value of whole image is to reach image smoothing.
Embodiment there is provided a kind of smoothing techniques devices of image motion by one according to the present invention.Smoothing techniques
Device includes an image information generator and an overvoltage drive circuit.Image information generator detects the continuous multiple of an image
Frame, it includes a present frames and a previous frame, when a second value of present frame and one first number of previous frame opposite position
When being worth different, one first image information is generated；When the second value of present frame and the first numerical value of previous frame opposite position
When identical, one second image information is generated.Overvoltage drive circuit is generated according to the first image information between the first numerical value and second
A first object value between numerical value, and by first object value replace two successive frames a present frame opposite position second
Numerical value；Or overvoltage drive circuit generates one second target value according to the second image information, and the second target value replacement two is continuous
The second value of the opposite position of the present frame of frame.
According to the present invention another embodiment there is provided a kind of processing method of the smoothing of dynamic image include
The following steps: firstly, continuous multiple frames of one image of detection, it includes a present frame and a previous frame, when the one the of present frame
When one first numerical value difference of two numerical value and previous frame opposite position, one first image information is generated；When the second of present frame
When numerical value is identical as the first numerical value of previous frame opposite position, one second image information is generated.It is raw according to the first image information
At a first object value, between the first numerical value and second value, and by first object value replace two successive frames a mesh
The second value of the opposite position of previous frame；Or one second target value is generated according to the second image information, and by the second target value
Replace the second value of the opposite position of the present frame of two successive frames.
The smoothing techniques device of the image motion of embodiment of the present invention utilizes the function of overvoltage drive, and reaching makes image
Smooth effect.
Detailed description of the invention
Figure 1A shows the schematic diagram of the smoothing techniques device of an embodiment of the present invention.
Figure 1B shows the schematic diagram of a repeating frame image.
Fig. 1 C shows the schematic diagram of the image information generator of an embodiment of the present invention.
Fig. 1 D shows the schematic diagram of the smoothing techniques device of another embodiment of the present invention.
Fig. 2 shows the overvoltage drive processing schematics of another embodiment of the present invention.
Fig. 3 A shows the schematic diagram of the smoothing techniques device of another embodiment of the present invention.
Fig. 3 B shows the schematic diagram of the smoothing techniques device of another embodiment of the present invention.
Fig. 4 shows the schematic diagram of the smoothing techniques device of another embodiment of the present invention.
Fig. 5 shows the schematic diagram of an existing repeating frame image.
Fig. 6 shows a kind of flow chart of smoothing processing of an embodiment of the present invention.
Specific embodiment
Figure 1A shows a kind of smoothing that dynamic image is carried out using overvoltage drive function of an embodiment of the present invention
The schematic diagram of processing unit 100.Smoothing techniques device 100 includes an overvoltage drive circuit (Over Drive(OD)
Circuit) 101, one image information generator (video information generator) 102 and a memory 103.
One implementation of memory 103 can be direct memory access (DMA) (Direct Memory Access, DMA), and the present invention is unlimited certainly
In this.Below to lift pixel value as illustrating for the value of one specific position of frame, the invention is not limited thereto, one specific position of frame
Value can be 0~255,0~1023 or other numerical value, and the visual panel developed existing or future at present of those numerical value defines and appoints
Meaning setting.
Overvoltage drive circuit 101 includes a processing unit 101a.Processing unit 101a may include that there are two look-up tables
LUT1 and LUT2.Wherein the first look-up table LUT1 is transforming numerical corresponding to change state to store frame, such as is once driven
Moving-target value T.Second look-up table LUT2 is transforming numerical corresponding to repeat mode, such as an overvoltage drive mesh to store frame
Scale value T '.
The second pixel value P2(that overvoltage drive circuit 101 receives the present frame FC of an image F is not shown), and by depositing
The first pixel value P1(that the reception of reservoir 103 image F previous frame FP corresponds to mono- specific position of present frame FC is not shown), utilize place
It manages unit 101a and the second pixel value P2 of the first pixel value P1 of previous frame FP and present frame FC is subjected to a calculation process generation
One target value T replaces the second pixel value P2 using target value T.
In one embodiment, 60 hertz of the repeating frame image AABB that image F can be converted to 60 hertz by 30 hertz for one
(Hz) image, as shown in Figure 1B.In image F, same frame (frame) can be repeated playing once, as frame A repeats playing one in the figure
It is secondary, i.e., such as the repeating frame AA in figure；Frame B is repeated playing once, i.e., such as the repeating frame BB in figure；The rest may be inferred by repeating frame CC.When
So the received repeating frame image of smoothing techniques device 100 of the invention is without being limited thereto, can also be existing or future at present for other
The various images developed.
Image information generator 102 receives image F, detection image F, according to the frame repeat mode of image F, generates an image
Information info.Image information info is needed to the frame for notifying overvoltage drive circuit 101 handling using processing unit 101a
Look-up table LUT1 or LUT2, that is, the frame that is handling of processing unit 101a of notice overvoltage drive circuit 101 is in and changes
Change state such as frame A to B or repeat mode such as frame B to B.The first look-up table LUT1 can be corresponded to by wherein changing state, and repeat mode
Second look-up table LUT2 can be corresponded to.
Fig. 1 C shows the schematic diagram of 102 1 embodiment of image information generator.Image information generator 102 includes one
A buffer 102a and comparator 102b.Buffer 102a receives present frame FC and temporary previous frame FP.Comparator 102b compares
The pixel value of a specific position of present frame FC and previous frame FP, and generate image information info.For example, the one of present frame FC is special
The second pixel value P2=200 set are positioned, and previous frame FP corresponds to the first pixel value of the second position pixel value P2 of present frame FC
P1=100, after comparator 102b compared pixels value P1 and P2, it is to be understood that factor values are different so changing state, life at present for frame
Change the image information info of state for frame at present at instruction.On the contrary, frame repeat mode can the rest may be inferred, repeat no more.
Figure 1A, Fig. 2 are please referred to, in running, it is assumed that a specific position pixel value of repeating frame A, A, B, B point in image F
Not Wei 100,100,200,200, in order to allow image smoothing, the over-voltage of the smoothing techniques device 100 of embodiment of the present invention
Driving circuit 101 receive present frame FC(such as first frame B) and by memory 103 reception previous frame FP(such as second
Frame A).Meanwhile image information generator 102 receives image F, and generates an image information info, notifies overvoltage drive circuit
101 processing unit 101a frame is in change state, and pixel value becomes 200 from 100.Therefore, processing unit 101a is according to this elder generation
Second frame A of previous frame FP() the first pixel value P1=100 and present frame FC(first frame B) the second pixel value P2=200
Change state searches out corresponding target value T=165 in the first look-up table LUT1 of lower driving, and target value T=165 is replaced the
Two pixel values 200, as shown in the triangle T in Fig. 2.And a lower driving target value T for being lower than the second pixel value 200 is obtained herein
Processing mode, can be described as the processing of lower driving (under drive).
Then, overvoltage drive circuit 101 receives present frame FC(such as second frame B) it is received previously with by memory 103
Frame FP(such as first frame B).Meanwhile image information generator 102 receives image F, and generates an image information info, notice
The processing unit 101a present frame of overvoltage drive circuit 101 is in repeat mode, and pixel value 200 repeats and image letter
It ceases generation unit 102 and generates a holding signal H to memory 103, notify memory 103 not rewrite the numerical value of previous frame FP, still
Keep the pixel value 100 of the second frame A of output.Therefore, processing unit 101a is according to second frame A of this previous frame FP() first
Second pixel value 200 of pixel value 100 and second frame B of present frame FC(), seeks in the second look-up table LUT2 of overvoltage drive
Corresponding target value T '=205 are found out, replace the second pixel value 200 using target value T '=205, such as the triangle T institute in Fig. 2
Show.The processing mode for obtaining the overvoltage drive target value T that one is higher than the second pixel value 200 herein, can be described as overvoltage drive (Over
Drive it) handles.
In this way, the smoothing techniques device 100 of embodiment of the present invention can be by the image F of repeating frame AABB in frame
The pixel value of specific position is adjusted to such as 100,100,165,205 by 100,100,200,200, obtains a more smooth knot
Fruit.It should be noted that above-mentioned numerical value is merely illustrative, the invention is not limited thereto.
Fig. 1 D shows a kind of smoothing that dynamic image is carried out using overvoltage drive function of another embodiment of the present invention
Processing unit 100 ' schematic diagram.Smoothing techniques device 100 ' includes an overvoltage drive circuit (Over Drive
(OD) Circuit) 101, one image information generator (video information generator) 102 and a memory
103.The processing unit 100 ' of smoothing and the difference of the processing unit 100 of smoothing are that the processing unit 100 ' of smoothing is
In frame repeat mode by recurrence cross drive (Recursive over drive) in the way of carry out smoothing techniques.
Please refer to Fig. 1 D, Fig. 2, running when, overvoltage drive circuit 101 receive present frame FC(such as first frame B), with
And previous frame FP(such as second frame A is received by memory 103).Meanwhile image information generator 102 receives image F, and
Generate an image information info, the processing unit 101a frame of notice overvoltage drive circuit 101 is in change state, pixel value by
100 become 200.Therefore, processing unit 101a is according to second frame A of this previous frame FP() the first pixel value P1=100 and at present
First frame B of frame FC() the second pixel value P2=200 change state, searched out in the first look-up table LUT1 of lower driving pair
Target value T=165 is replaced the second pixel value 200 by target value T=165 answered.
One embodiment receives present frame FC(such as second frame B in overvoltage drive circuit 101) and by memory 103
Receive previous frame FP(such as first frame B) when, image information generator 102 receives image F, and generates an image information info,
The processing unit 101a present frame of notice overvoltage drive circuit 101 is in repeat mode, and pixel value 200 repeats, and handles
Unit 101a is rewritten to memory 103 according to image information info target value T=165, to export target value T=165.Therefore, locate
Second pixel value 200 of the unit 101a according to output target value T=165 and second frame B of present frame FC() is managed, in overvoltage drive
Second look-up table LUT2 in search out corresponding target value T '=205, utilize target value T '=205 replace the second pixel value 200.
Fig. 3 A shows a kind of smoothing that dynamic image is carried out using overvoltage drive function of an embodiment of the present invention
The schematic diagram of processing unit 300.Smoothing techniques device 300 includes that an overvoltage drive circuit 301 and an image information generate
Device 302 and a memory 303.Overvoltage drive circuit 301 includes a processing unit 301a.Processing unit 301a may include
There are two look-up table LUT1, LUT2 and a computing unit 301a1.Computing unit includes a gain unit.It may be noted that flat
Cunningization processing unit 300 and the difference of smoothing techniques device 100 is, look-up table LUT1 and LUT2 are non-to generate target value, and
It is to generate a variable X, look-up table LUT1 is to drive look-up table, in input frame to provide lower driving variable when change state
X1；And look-up table LUT2 is an overvoltage drive look-up table, in input frame to provide an overvoltage drive variable X 2 when repeat mode.
In running, it is assumed that in image F a specific position pixel value of repeating frame A, A, B, B be respectively 100,100,200,
200, in order to allow image smoothing, the overvoltage drive circuit 301 of the smoothing techniques device 300 of embodiment of the present invention is received
Present frame FC(such as first frame B) and by memory 303 receive previous frame FP(such as second frame A).Meanwhile image
Information generator 302 receives image F, and generates an image information info, notifies the processing unit 301a of overvoltage drive circuit 301
Frame is in change state, and pixel value becomes 200 from 100.Therefore, processing unit 301a is according to second frame A of this previous frame FP()
The first pixel value P1=100 and first frame B of present frame FC() the second pixel value P2=200 change state, looked into first
It looks in table LUT1 and searches out corresponding variable X 1=0.65.Then, computing unit 301a1, by first frame B's of present frame FC()
Second pixel value P2 subtracts second frame A of previous frame FP() the first pixel value P1 after, multiplied by variable X 1 with multiplied by gain unit
The yield value Gain of offer adds the first pixel value P1, such as FP+(FC-FP later) * factor*Gain, i.e. 100+(200-
100) 0.65*1=165 *, it is assumed that variable X 1(factor)=0.65, gain G ain=1, and obtain target value T=165 and take
The second pixel value 200 of generation, as shown in the triangle T in Fig. 2.And one is obtained herein lower than driving under the second pixel value P2=200
The processing mode of target value T can be described as lower driving (under drive) processing.
Then, overvoltage drive circuit 301 receives present frame FC(such as second frame B) it is received previously with by memory 303
Frame FP(such as first frame B).Meanwhile image information generator 302 receives image F, and generates an image information info, notifies
The processing unit 301a present frame of pressure driving circuit 301 is in repeat mode, and pixel value 200 repeats and image information
Generation unit 102 generates one and keeps signal H to memory 303, notifies memory 303 not rewrite the numerical value of previous frame FP, still protects
Hold the pixel value 100 of the second frame A of output.Therefore, processing unit 301a is according to second frame A of this previous frame FP() the first picture
The repeat mode of plain value 100 and the second pixel value 200 of second frame B of present frame FC(), finds in second look-up table LUT2
Variable X 2=1.05 is corresponded to out, and then, computing unit 301a1 foundation subtracts the second pixel value P2 of second frame B of present frame FC()
Remove second frame A of previous frame FP() the first pixel value P1c after, multiplied by variable X 2 with multiplied by gain unit provide yield value
Gain adds the first pixel value P1, e.g., FP+(FC-FP later) * factor*Gain, i.e. 100+(200-100) * 1.05*Gain
=205, it is assumed that variable X 2(factor) it is 1.05, gain G ain=1, and obtain an overvoltage drive target value T '=205 substitution
Second pixel value 200 replaces the second pixel value 200 using overvoltage drive target value T '=205, such as the triangle T in Fig. 2 ' institute
Show.The processing mode for obtaining the overvoltage drive target value T ' that one is higher than the second pixel value 200 herein, can be described as overvoltage drive
(Over drive) processing.
In this way, the smoothing techniques device 300 of embodiment of the present invention can be by the image F of repeating frame AABB in frame
The pixel value of specific position is adjusted to for example above-mentioned 100,100,165,205 by 100,100,200,200, and it is more smooth to obtain one
Result.
Fig. 3 B shows a kind of smoothing that dynamic image is carried out using overvoltage drive function of an embodiment of the present invention
The schematic diagram of processing unit 300 '.Smoothing techniques device 300 ' includes that an overvoltage drive circuit 301 and an image information are raw
It grows up to be a useful person 302 and a memory 303.Overvoltage drive circuit 301 includes a processing unit 301a.Processing unit 301a can be wrapped
Containing there are two look-up table LUT1, LUT2 and a computing unit 301a1.Computing unit includes a gain unit.It may be noted that
Smoothing techniques device 300 ' and the difference of smoothing techniques device 300 are that smoothing techniques device 300 ' is to repeat shape in frame
When state by recurrence cross drive (Recursive over drive) in the way of carry out smoothing techniques, i.e., frame be repeat mode when
First object value T is rewritten to memory 303 by processing unit 301a, to export first object value to processing unit 301a.In detail
Thin function mode, the right prediction scheme of the technology of this field, which can refer to Fig. 1 D recurrence, to be crossed the control mode of drive and pushes away, and is repeated no more.
It is another it may be noted that present embodiment can be according to demand, the numerical value of any adjust gain Gain, at this time can need not be one by one
Adjust the numerical value of look-up table, it is only necessary to disposable setting.It should be noted that above-mentioned numerical value is merely illustrative, the invention is not limited thereto.
Fig. 4 shows a kind of place of smoothing that dynamic image is carried out using overvoltage drive function of an embodiment of the present invention
Manage the schematic diagram of device 400.Smoothing techniques device 400 includes an overvoltage drive circuit 401 and an image information generator
402, a memory 403.Overvoltage drive circuit 401 includes a processing unit 401a, an arithmetic element 401b, more than one first
Be engaged in device M1 and one second multiplexer M2.Processing unit 401a may include having a look-up table LUT, to generate target value T.
It may be noted that the difference of smoothing techniques device 400 and aforementioned smoothing techniques device be arithmetic element 401b receive present frame FC,
And previous frame FP is received by memory 403, operation is carried out to the pixel value of a specific opposite position of two frame FC and FP
After processing, numerical value Oc ' is to first, second multiplexer M1, M2 after providing operation.First multiplexer M1 receives previous frame FP
The first pixel value P1 and operation after numerical value Oc ', using the data query starting point of the look-up table LUT as processing unit 401a；The
Two multiplexer M2 receive the second pixel value P2 of numerical value Oc ' and present frame FC after operation, using looking into as processing unit 401a
Look for the data query terminal of table LUT.
One embodiment, it is raw when image information generator 402 detects in multiimage, and frame is above-mentioned change state
At image information info, for example, logical value 1, to allow the first pixel value P1 of the first multiplexer M1 selection previous frame FP by the
One output end O1 output, using the data query starting point of the look-up table LUT as processing unit 401a；Allow the second multiplexer simultaneously
Numerical value Oc ' is exported by second output terminal O2 after M2 Selecting operation, using the data query of the look-up table LUT as processing unit 401a
Terminal.Then, the look-up table LUT of processing unit 401a converts out one according to data query starting point P1 and data query terminal Oc '
Lower driving target value T.
Relatively, when image information generator 402 detects in multiimage, and frame is above-mentioned repeat mode, image letter
It ceases generator 402 and generates one and keep signal H to memory 403, device 403 stored above does not rewrite the of previous frame (the second frame A)
One pixel value P1 and image information generator 402 generate image information info, for example, logical value 0, to allow the first multitask
Numerical value Oc ' is exported by the first output end O1 after device M1 Selecting operation, is looked into using the data of the look-up table LUT as processing unit 401a
Ask starting point；The second pixel value P2 of the second multiplexer M2 selection present frame FC is allowed to be exported by second output terminal O2, simultaneously to make
For the data query terminal of the look-up table LUT of processing unit 401a.Then, the look-up table LUT of processing unit 401a is according to data
Starting point Oc ' and data query terminal P2 is inquired, an overvoltage drive target value T is converted out.
For example, in running, it is assumed that a specific position pixel value of repeating frame A, A, B, B are respectively in image F
100,100,200,200, in order to allow image smoothing, the overvoltage drive of the smoothing techniques device 400 of embodiment of the present invention
The arithmetic element 401b of circuit 401 receives present frame FC(such as first frame B) the second pixel value P2=200 and by depositing
Reservoir 403 receives previous frame FP(such as second frame A) the first pixel value P1=100, and arithmetic element 401b is by two pixel values
P1 and P2 carry out a calculation process, for example, carry out a hybrid operation-will (FP+FC)/2, with generate numerical value Oc ' after operation=
(100+200)/2=150.Meanwhile image information generator 402 receive image F, and generate one expression frame be in pixel value by
100 become the image information info of 200 change states, such as logical value 1, to control more than first of overvoltage drive circuit 401
Numerical value Oc '=150 after the second multiplexer M2 Selecting operation of selection pixel value P1=100 business device M1 and control.Then, processing unit
401a according to this data query starting point 100 and data query terminal 150, searched out in look-up table LUT corresponding target value T=
165.Target value T=165 is replaced into the second pixel value P2=200, as shown in the triangle T in Fig. 2.
Then, when image information generator 402 detects that frame is in repeat mode, first frame B of previous frame FP()
Second frame B of one pixel value 200 and present frame FC() the second pixel value 200 repeat, image information generator 402 generate
One keep signal H to memory 403, do not rewrite the second frame A of previous frame FP( to control memory 403) the first pixel value=
100, frame FP pixel value 100 and 200 corresponding with frame FC is carried out operation by arithmetic element 401b at this time, such as hybrid operation obtains
Numerical value Oc '=150 after one operation.Then, image information generator 402 generates an image information info, such as logical value 0, with control
Numerical value Oc '=150 and the second multiplexer M2 of control the after first multiplexer M1 Selecting operation of overvoltage drive circuit 401 processed
Two pixel value P2=200.Therefore, processing unit 401a is being searched according to this data query starting point 150 and data query terminal 200
Corresponding overvoltage drive target value T '=205 are searched out in table LUT, and overvoltage drive target value T '=205 is replaced into the second pixel
Value 200, such as the triangle T in Fig. 2 ' shown in.The place for the overvoltage drive target value T ' that one is higher than the second pixel value 200 is obtained herein
Reason mode can be described as overvoltage drive (Over drive) processing.It may be noted that a kind of of embodiment of the present invention utilizes overvoltage drive
Function carries out the processing unit 400 of the smoothing of dynamic image, can also cross drive using recurrence in frame repeat mode
The mode of (Recursive over drive) carries out smoothing techniques, i.e., is mentioned when frame is repeat mode by processing unit 401a
Signal H is kept for one, previous frame FP is not rewritten with controlling memory 403.Detailed Operation mode, those skilled in the art can
It pushes away, repeats no more with reference to the control mode that Fig. 1 D recurrence crosses drive.
In addition, processing unit 401a also may include that there are two look-up tables more accurately to set number in another embodiment
The conversion of value.Those skilled in the art can know according to above description, repeat no more.
In above embodiment, operation method that the operation method of arithmetic element 401b is trembled when being an elimination image motion
(dejudder), it is that the previous frame of image and present frame are subjected to mixed processing (blending), numerical value is added and removes 2.Certainly
Present invention is also not necessarily limited to this, and the various existing or future various operation methods developed at present can be used.
In another embodiment, above-mentioned overvoltage drive circuit of the invention can further include a switch, big in image amount of movement
When stop overvoltage drive compensation, only with arithmetic element carry out calculation process, such as hybrid mode processing.It may be noted that mobile
Amount is big only to illustrate, and another embodiment is when determining that image is not suitable for smoothing processing of the invention, with regard to tripping
The method cuts off the smoothing function of overvoltage drive circuit, retains the overvoltage drive function of original existing overvoltage drive circuit.
Embodiments of the present invention are not limited to apply the repeating frame AABB at 30 to 60 hertz, can also in another embodiment
Applied to 24 to 60 hertz of repeating frame AABBB, as shown in figure 5, and as smoothing techniques device 500 of the present invention is applied to repeat
When the image of frame AABBB, handled in an embodiment using three look-up table LUT, and the one of calculation process mode is mixed
Conjunction embodiment is as shown in the drawing, and those skilled in the art can be appreciated that schema and push away how to be applied to the overvoltage drive of this case
In smoothing technique, therefore repeat no more details.Certainly, other existing or future repeating frame figures developed at present are also applied for
As in.
Fig. 6 shows a kind of place of smoothing that dynamic image is carried out using overvoltage drive function of an embodiment of the present invention
The flow chart of reason method.This method includes the following steps:
Step S602: start.
Step S604: the continuous multiple frames of one image of detection, it includes a present frame and a previous frame, when the one the of present frame
When one first numerical value difference of two numerical value and previous frame opposite position, one first image information is generated, and enter step S606；
When the second value of present frame is identical as the first numerical value of previous frame opposite position, one second image information of generation, and into
Enter step S608.
Step S606: the first object between the first numerical value and second value is generated according to the first image information
Value, and by the second value of the opposite position of a present frame of first object value two successive frames of replacement, enter step S610.
Step S608: one second target value is generated according to the second image information, and the second target value is replaced into two successive frames
Present frame opposite position second value.
Step S610: step S604 is repeated, until whole numerical value of whole frame are disposed.
It may be noted that first frame can be handled according to image information, assume that first frame is primary condition herein
(initial condition).
It may be noted that being if the received image F of the smoothing techniques device of embodiment of the present invention is non-in another embodiment
Repeating frame image (the e.g. A of 30Hz, B, C, D ...), image information generator, which can provide, converts the image into repeating frame image
Function, and the repeating frame image after conversion is exported to overvoltage drive circuit.
In addition, the value of the above-mentioned two successive frame opposite positions, is indicated in continuous previous frame and present frame, previous frame
A pixel coordinate (X1, Y1) and another pixel of present frame the position coordinate (X2, Y2) it is identical, i.e. the position of two pixels is identical
X1=X2, Y1=Y2, and the value of the two successive frame opposite positions refers to the value of the coordinate (X1, Y1) of a pixel of previous frame, with
And the value of the coordinate (X2, Y2) of another pixel of present frame.
The smoothing techniques device of the image motion of embodiment of the present invention utilizes overvoltage drive and an arithmetic processing method,
Such as easy mixed processing, the overvoltage drive value of multiimage is calculated, those overvoltage drive values are smooth compared with the multiimage of script,
It may achieve and be not required to redesign new chip, save production cost, solve the jitter of existing repeating frame image.
Though illustrating the present invention above with embodiment, therefore do not limit the scope of the invention, without departing from this hair
Bright main idea, the various modifications or change that person skilled in art carries out each fall within claim of the invention.
[symbol description]
100,300,400, the smoothing techniques device of image motion
101,301,401, overvoltage drive circuit
101a, 301a, 401a processing unit
401b, 501b arithmetic element
301a1,501a1 computing unit
102,302,402 image information generator
103,303,403 memory
LUT, LUT1, LUT2 look-up table
102a buffer
102b comparator
M1, M2 multiplexer.
Claims (12)
1. a kind of processing unit of the smoothing of dynamic image, includes:
One image information generator, detects continuous multiple frames of an image, and continuous multiple frames include that a present frame and one are first
Previous frame, when one first numerical value difference of a second value of the present frame and the previous frame opposite position, generation refers to
Show one first image information for changing state for frame at present；When the second value of the present frame is opposite with the previous frame
When answering first numerical value of position identical, generating instruction at present is one second image information of frame repeat mode；And
One overvoltage drive circuit generates between first numerical value and the second value according to the first image information
A first object value, and will the first object value replace two successive frames a present frame opposite position described in
Second value；Or the overvoltage drive circuit generates one second mesh higher than the second value according to second image information
Scale value, and second target value is replaced to second number of the opposite position of the present frame of two successive frame
Value.
2. the apparatus according to claim 1 includes also a memory, the memory is to store the present frame and institute
Previous frame is stated, and when described image information generator generates second image information, described image information generator is generated
One keeps signal, to control first numerical value that the memory does not rewrite the previous frame.
3. the apparatus according to claim 1 includes also a memory, the memory is to store the present frame and institute
Previous frame is stated, and when described image information generator generates second image information, the overvoltage drive circuit is according to institute
It states the second image information and the first object value is rewritten to the memory.
4. the apparatus according to claim 1, wherein the overvoltage drive circuit includes a processing unit, and the processing is single
Member includes one first look-up table and a second look-up table, wherein the second value and first numerical value are not described simultaneously
The one of two successive frames changes state, the first object value of first look-up table to store the change state；It is described
It is a repeat mode of two successive frame when second value is identical as first numerical value, the second look-up table is to store
Second target value of the repeat mode.
5. the apparatus according to claim 1, wherein described image information generator includes:
One buffer, receives the present frame of two successive frame, and keeps in the previous frame of two successive frame；And
One comparator, the second value of the present frame of two successive frame and described the first of the previous frame
Numerical value, to generate the first image information or second image information.
6. the apparatus according to claim 1, wherein the overvoltage drive circuit includes a processing unit, and the processing is single
Member includes:
One first look-up table is not changing for two successive frame to store the second value and first numerical value simultaneously
One first variable corresponding to change state；
One second look-up table, to store the second value it is identical as first numerical value when for two successive frame a weight
One second variable corresponding to multiple state；And
One computing unit generates the first object value according to first variable；Or according to described in second variable generation
Second target value.
7. device according to claim 6, wherein the computing unit includes a gain unit, to provide an increasing
Benefit value is to the computing unit, to adjust the size of the first object value Yu second target value.
8. the apparatus according to claim 1, wherein the overvoltage drive circuit also includes:
One arithmetic element generates numerical value after an operation after carrying out a calculation process to first numerical value and the second value；
One first multiplexer receives numerical value after first numerical value and the operation, using as the overvoltage drive circuit
The data query starting point of one look-up table；And
One second multiplexer receives numerical value and the second value after the operation, using as the overvoltage drive circuit
The data query terminal of the look-up table；
Wherein, first multiplexer and second multiplexer are according to the first image information output first number
It is worth with numerical value after the operation respectively as the data query starting point and the data query terminal, or according to described second
Numerical value and the second value are looked into respectively as the data query starting point and the data after the image information output operation
Terminal is ask, and the look-up table converts out the first object according to the data query starting point and the data query terminal
Value or second target value.
9. device according to claim 8, wherein the calculation process is by first numerical value and the second value
Carry out a mixed processing.
10. the apparatus according to claim 1, wherein first numerical value, second value are pixel value.
11. a kind of processing method of the smoothing of dynamic image, includes:
The continuous multiple frames for detecting an image, it includes a present frames and a previous frame, when a second value of the present frame
When with one first numerical value difference of the previous frame opposite position, one first image that instruction changes state at present for frame is generated
Information；It is raw when the second value of the present frame is identical as first numerical value of the previous frame opposite position
It is at present one second image information of frame repeat mode at instruction；And
The first object value between first numerical value and the second value is generated according to the first image information,
And the first object value is replaced to the second value of the opposite position of the present frame of two successive frames；Or according to institute
It states the second image information and generates one second target value higher than the second value, and second target value is replaced described two
The second value of the opposite position of the present frame of successive frame.
12. according to the method for claim 11, wherein first numerical value, second value are pixel value.
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| CN113160734B (en) * | 2021-04-07 | 2022-11-01 | Tcl华星光电技术有限公司 | Time schedule controller and polarity gray scale compensation method |
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