CN104836937A - Processing method for performing dynamic image smoothing by utilizing overvoltage drive function, and method - Google Patents
Processing method for performing dynamic image smoothing by utilizing overvoltage drive function, and method Download PDFInfo
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Abstract
The invention discloses a processing method for performing dynamic image smoothing by utilizing an overvoltage drive function, and a method. The smoothing processing device comprises a video information generator and an over drive circuit. The video information generator detects a plurality of frames of an image, the frames comprises current frames and previous frames, and, when a second value of each current frame is different from a first value at a corresponding position of each previous frame, first image information is generated; and, when the second value of each current frame is the same as the first value at the corresponding position of each previous frame, second image information is generated. The over drive circuit generates a first target value between the first value and the second value according to the first image information, the second values at the corresponding positions of the current frames of the two continuous frames are replaced by the first target value; or the over drive circuit generates a second target value according to the second mage information, the second values at the corresponding positions of the current frames of the two continuous frames are replaced by the first target value.
Description
Technical field
The present invention relates to a kind of image processing apparatus and method; Particularly, relate to a kind of utilize overvoltage drive function to carry out the smoothing of dynamic image processing unit and method.
Background technology
In conventional images play-back technology, the input of image, picture 22(AABB as repeating frame) or 23(AABBB), be everlasting when showing and shake (Judder) rough problem, therefore need to carry out image procossing, such as estimation (Motion estimation, ME) or motion compensation (Motion Compensation, MC) are in the hope of result of broadcast more smoothly.This kind of processing mode is commonly referred to as separates shake (De-judder).
But the normal at substantial resource of general solution dither method and production cost, therefore how providing a kind of and separate the method that shake makes view data smoothing, is the problem that a urgent need overcomes in fact.
Summary of the invention
An object of the present invention is providing a kind of smoothing techniques device of image motion, utilizes the numerical value of overvoltage drive the regulation of electrical circuit image to reach effect of image smoothing.
According to one embodiment of the present invention, provide a kind of smoothing techniques device of image motion.Smoothing techniques device includes an image information maker and an overvoltage drive circuit.Image information maker detects continuous multiple frame of an image, and it comprises a present frame and a previous frame, when a second value of present frame is different with one first numerical value of previous frame opposite position, generates one first image information; When this second value of present frame is identical with the first numerical value of previous frame opposite position, generate one second image information.Overvoltage drive circuit, generates the first object value between the first numerical value and second value according to the first image information, and first object value is replaced the second value of the opposite position of a present frame of two successive frames; Or overvoltage drive circuit generates one second desired value according to the second image information, and the second desired value is replaced the second value of the opposite position of the present frame of two successive frames.
According to another embodiment of the present invention, provide a kind of processing method of smoothing of dynamic image, include the following step: first, detect continuous multiple frame of an image, it comprises a present frame and a previous frame, when a second value of present frame is different with one first numerical value of previous frame opposite position, generate one first image information; When the second value of present frame is identical with the first numerical value of previous frame opposite position, generate one second image information.Generate a first object value according to the first image information, it is between the first numerical value and second value, and first object value is replaced the second value of the opposite position of a present frame of two successive frames; Or generate one second desired value according to the second image information, and the second desired value is replaced 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, reaches the effect making image smoothing.
Accompanying drawing explanation
Figure 1A illustrates the schematic diagram of the smoothing techniques device of an embodiment of the present invention.
Figure 1B illustrates the schematic diagram of a repeating frame image.
Fig. 1 C illustrates the schematic diagram of the image information maker of an embodiment of the present invention.
Fig. 1 D illustrates the schematic diagram of the smoothing techniques device of another execution mode of the present invention.
Fig. 2 illustrates the overvoltage drive process schematic diagram of another execution mode of the present invention.
Fig. 3 A illustrates the schematic diagram of the smoothing techniques device of another execution mode of the present invention.
Fig. 3 B illustrates the schematic diagram of the smoothing techniques device of another execution mode of the present invention.
Fig. 4 illustrates the schematic diagram of the smoothing techniques device of another execution mode of the present invention.
Fig. 5 illustrates the schematic diagram of an existing repeating frame image.
Fig. 6 illustrates the flow chart of a kind of smoothing processing of an embodiment of the present invention.
Embodiment
Figure 1A illustrates the schematic diagram of a kind of processing unit 100 utilizing overvoltage drive function to carry out the smoothing of dynamic image of an embodiment of the present invention.Smoothing techniques device 100 includes an overvoltage drive circuit (Over Drive(OD) Circuit) 101, one image information maker (video information generator) 102 and a memory 103.One enforcement of memory 103 can be direct memory access (DMA) (Direct Memory Access, DMA), certainly the present invention is not limited thereto.Illustrate to lift pixel value as the value of frame one ad-hoc location below, the present invention is not limited thereto, the value of frame one ad-hoc location can be 0 ~ 255,0 ~ 1023 or other numerical value, the visual existing or future panel definition that develops at present of those numerical value and setting arbitrarily.
Overvoltage drive circuit 101 includes a processing unit 101a.Processing unit 101a can include two look-up table LUT1 and LUT2.Wherein the first look-up table LUT1 is in order to the transforming numerical of storage frame for a change corresponding to state, such as, drive desired value T once.Second look-up table LUT2 in order to the transforming numerical of storage frame corresponding to repeat mode, a such as overvoltage drive desired 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 memory 103 receive image F previous frame FP to should the first pixel value P1(of present frame FC mono-ad-hoc location not shown), utilize processing unit 101a that the first pixel value P1 of previous frame FP and the second pixel value P2 of present frame FC is carried out a calculation process and generate a desired value T, utilize this desired value T to replace the second pixel value P2.
In one execution mode, image F can be one to be converted to the repeating frame image AABB of 60 hertz 60 hertz of (Hz) images by 30 hertz, as shown in Figure 1B.In image F, same frame (frame) can repeat playing once, as frame A repeat playing in this figure once, namely as the repeating frame AA in figure; Frame B repeat playing once, namely as the repeating frame BB in figure; The rest may be inferred for repeating frame CC.The repeating frame image that certain smoothing techniques device 100 of the present invention receives is not limited thereto, and also can be other existing or future various images developed at present.
Image information maker 102 receives image F, detected image F, according to the frame repeat mode of image F, generates an image information info.Image information info needs in order to the frame notifying overvoltage drive circuit 101 and processing look-up table LUT1 or LUT2 using processing unit 101a, namely notifies that the frame that the processing unit 101a of overvoltage drive circuit 101 is processing is in change state if frame A to B or repeat mode are as frame B to B.Wherein change state and may correspond to the first look-up table LUT1, and repeat mode may correspond to second look-up table LUT2.
Fig. 1 C illustrates the schematic diagram of image information maker 102 1 execution mode.Image information maker 102 includes an a buffer 102a and comparator 102b.Buffer 102a receives present frame FC and temporary previous frame FP.Comparator 102b compares the pixel value of an ad-hoc location of present frame FC and previous frame FP, and synthetic image information info.Such as, second pixel value P2=200 of one ad-hoc location of present frame FC, and the first pixel value P1=100 of the second pixel value P2 position of the corresponding present frame FC of previous frame FP, after comparator 102b compared pixels value P1 and P2, can know that factor values is different so at present for frame changes state, generate instruction at present for frame changes the image information info of state.On the contrary, frame repeat mode can the rest may be inferred, repeats no more.
Please refer to Figure 1A, Fig. 2, when operating, suppose that an ad-hoc location pixel value of repeating frame A, A, B, B in image F is respectively 100,100,200,200, in order to allow image smoothing, the overvoltage drive circuit 101 of the smoothing techniques device 100 of embodiment of the present invention receives present frame FC(as first frame B) and receive previous frame FP(as second frame A by memory 103).Meanwhile, image information maker 102 receives image F, and generates an image information info, and the processing unit 101a frame of notice overvoltage drive circuit 101 is in change state, and pixel value becomes 200 from 100.Therefore, processing unit 101a is according to this previous frame FP(second frame A) the first pixel value P1=100 and present frame FC(first frame B) the change state of the second pixel value P2=200, corresponding desired value T=165 is found out in lower driving first look-up table LUT1, desired value T=165 is replaced the second pixel value 200, as shown in the triangle T in Fig. 2.And obtain one herein lower than the processing mode of the lower driving desired value T of the second pixel value 200, can be described as lower driving (under drive) process.
Then, overvoltage drive circuit 101 receives present frame FC(as second frame B) and receive previous frame FP(as first frame B by memory 103).Simultaneously, image information maker 102 receives image F, and generate an image information info, the processing unit 101a present frame of notice overvoltage drive circuit 101 is in repeat mode, pixel value 200 repeats and image information generation unit 102 generates an inhibit signal H to memory 103, notice memory 103 does not rewrite the numerical value of previous frame FP, still keeps the pixel value 100 of output second frame A.Therefore, processing unit 101a is according to this previous frame FP(second frame A) the first pixel value 100 and present frame FC(second frame B) the second pixel value 200, corresponding target value T '=205 are found out in the second look-up table LUT2 of overvoltage drive, these desired value T '=205 are utilized to replace the second pixel value 200, as shown in the triangle T in Fig. 2.Obtain one herein higher than the processing mode of the overvoltage drive desired value T of the second pixel value 200, can be described as overvoltage drive (Over drive) process.
Mode according to this, the image F of repeating frame AABB can be adjusted to such as 100,100,165,205 at the pixel value of the ad-hoc location of frame by 100,100,200,200 by the smoothing techniques device 100 of embodiment of the present invention, obtains a comparatively level and smooth result.Should be noted that above-mentioned numerical value is only example, the present invention is not limited thereto.
Fig. 1 D another execution mode of the present invention is shown a kind of utilize overvoltage drive function carry out the processing unit 100 ' of the smoothing of dynamic image schematic diagram.Smoothing techniques device 100 ' includes an overvoltage drive circuit (Over Drive(OD) Circuit) 101, one image information maker (video information generator) 102 and a memory 103.The processing unit 100 ' of smoothing with the difference of the processing unit 100 of smoothing is, the processing unit 100 ' of smoothing utilizes recurrence to cross when frame repeat mode to drive mode smoothingization of (Recursive over drive) to process.
Please refer to Fig. 1 D, Fig. 2, when operating, overvoltage drive circuit 101 receives present frame FC(as first frame B) and receive previous frame FP(as second frame A by memory 103).Meanwhile, image information maker 102 receives image F, and generates an image information info, and the processing unit 101a frame of notice overvoltage drive circuit 101 is in change state, and pixel value becomes 200 from 100.Therefore, processing unit 101a is according to this previous frame FP(second frame A) the first pixel value P1=100 and present frame FC(first frame B) the change state of the second pixel value P2=200, in lower driving first look-up table LUT1, find out corresponding desired value T=165, desired value T=165 is replaced the second pixel value 200.
One execution mode, present frame FC(is received as second frame B at overvoltage drive circuit 101) and receive previous frame FP(as first frame B by memory 103) time, image information maker 102 receives image F, and generate an image information info, the processing unit 101a present frame of notice overvoltage drive circuit 101 is in repeat mode, pixel value 200 repeats, and processing unit 101a is rewritten to memory 103, to export desired value T=165 according to image information info desired value T=165.Therefore, processing unit 101a according to export desired value T=165 and present frame FC(second frame B) the second pixel value 200, in the second look-up table LUT2 of overvoltage drive, find out corresponding target value T '=205, utilize these desired value T '=205 to replace the second pixel value 200.
Fig. 3 A illustrates the schematic diagram of a kind of processing unit 300 utilizing overvoltage drive function to carry out the smoothing of dynamic image of an embodiment of the present invention.Smoothing techniques device 300 includes overvoltage drive circuit 301 and image information maker 302 and a memory 303.Overvoltage drive circuit 301 includes a processing unit 301a.Processing unit 301a can include two look-up tables LUT1, LUT2 and a computing unit 301a1.Computing unit includes a gain unit.Should be noted, smoothing techniques device 300 with the difference of smoothing techniques device 100 is, look-up table LUT1 and LUT2 is non-for generating desired value, but generates a variable X, look-up table LUT1 for drive look-up table once, incoming frame for a change state time lower driving variable X 1 is provided; And look-up table LUT2 is an overvoltage drive look-up table, at incoming frame for providing an overvoltage drive variable X 2 during repeat mode.
When operating, suppose that an ad-hoc location pixel value of repeating frame A, A, B, B in image F is 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 receives present frame FC(as first frame B) and receive previous frame FP(as second frame A by memory 303).Meanwhile, image information maker 302 receives image F, and generates an image information info, and the processing unit 301a frame of notice overvoltage drive circuit 301 is in change state, and pixel value becomes 200 from 100.Therefore, processing unit 301a is according to this previous frame FP(second frame A) the first pixel value P1=100 and present frame FC(first frame B) the change state of the second pixel value P2=200, in the first look-up table LUT1, find out corresponding variable X 1=0.65.Then, computing unit 301a1, by present frame FC(first frame B) the second pixel value P2 deduct previous frame FP(second frame A) the first pixel value P1 after, variable X 1 and the yield value Gain being multiplied by gain unit and providing are provided, add the first pixel value P1 afterwards, as FP+(FC – FP) * factor*Gain, i.e. 100+(200-100) * 0.65*1=165, now suppose variable X 1(factor)=0.65, gain G ain=1, and obtain a desired value T=165 and replace the second pixel value 200, as shown in the triangle T in Fig. 2.And obtain one herein lower than the processing mode driving desired value T under the second pixel value P2=200, can be described as lower driving (under drive) process.
Then, overvoltage drive circuit 301 receives present frame FC(as second frame B) and receive previous frame FP(as first frame B by memory 303).Simultaneously, image information maker 302 receives image F, and generate an image information info, the processing unit 301a present frame of notice overvoltage drive circuit 301 is in repeat mode, pixel value 200 repeats and image information generation unit 102 generates an inhibit signal H to memory 303, notice memory 303 does not rewrite the numerical value of previous frame FP, still keeps the pixel value 100 of output second frame A.Therefore, processing unit 301a is according to this previous frame FP(second frame A) the first pixel value 100 and present frame FC(second frame B) the repeat mode of the second pixel value 200, corresponding variable X 2=1.05 is found out in second look-up table LUT2, then, computing unit 301a1 is according to by present frame FC(second frame B) the second pixel value P2 deduct previous frame FP(second frame A) the first pixel value P1c after, variable X 2 and the yield value Gain being multiplied by gain unit and providing are provided again, add the first pixel value P1 afterwards, as, FP+(FC – FP) * factor*Gain, i.e. 100+(200-100) * 1.05*Gain=205, now suppose variable X 2(factor) be 1.05, gain G ain=1, and obtain one overvoltage drive desired value T '=205 replace the second pixel value 200 utilize these overvoltage drive desired value T '=205 replace the second pixel value 200, triangle T as in Fig. 2 ' shown in.Obtain one herein higher than the processing mode of the overvoltage drive desired value T ' of the second pixel value 200, can be described as overvoltage drive (Over drive) process.
Mode according to this, the image F of repeating frame AABB can be adjusted to such as above-mentioned 100,100,165,205 at the pixel value of the ad-hoc location of frame by 100,100,200,200 by the smoothing techniques device 300 of embodiment of the present invention, obtains a comparatively level and smooth result.
Fig. 3 B illustrates a kind of schematic diagram utilizing overvoltage drive function to carry out the processing unit 300 ' of the smoothing of dynamic image of an embodiment of the present invention.Smoothing techniques device 300 ' includes overvoltage drive circuit 301 and image information maker 302 and a memory 303.Overvoltage drive circuit 301 includes a processing unit 301a.Processing unit 301a can include two look-up tables LUT1, LUT2 and a computing unit 301a1.Computing unit includes a gain unit.Should be noted, smoothing techniques device 300 ' with the difference of smoothing techniques device 300 is, smoothing techniques device 300 ' is the mode smoothingization process utilizing recurrence to cross when frame repeat mode to drive (Recursive over drive), namely by processing unit 301a, first object value T is rewritten to memory 303 when frame is repeat mode, to export first object value to processing unit 301a.Detailed Operation mode, the right prediction scheme of technology of this area can be crossed the control mode of driving with reference to figure 1D recurrence and push away, and repeats no more.
Separately should be noted, present embodiment can according to demand, and the numerical value of adjustment gain G ain, now can adjust the numerical value of look-up table one by one, only need disposable setting arbitrarily.Should be noted that above-mentioned numerical value is only example, the present invention is not limited thereto.
Fig. 4 illustrates the schematic diagram of a kind of processing unit 400 utilizing overvoltage drive function to carry out the smoothing of dynamic image of an embodiment of the present invention.Smoothing techniques device 400 includes overvoltage drive circuit 401 and image information maker 402, memory 403.Overvoltage drive circuit 401 includes a processing unit 401a, an arithmetic element 401b, one first multiplexer M1 and one second multiplexer M2.Processing unit 401a can include a look-up table LUT, in order to generate desired value T.Should be noted, smoothing techniques device 400 is that arithmetic element 401b receives present frame FC and receives previous frame FP by memory 403 with the difference of aforementioned smoothing techniques device, after carrying out calculation process to the pixel value of a specific phase correspondence position of two frame FC and FP, after providing computing, numerical value Oc ' is to first, second multiplexer M1, M2.First multiplexer M1 receives numerical value Oc ' after the first pixel value P1 of previous frame FP and computing, using the data query starting point of the look-up table LUT as processing unit 401a; The second pixel value P2 of numerical value Oc ' and present frame FC after second multiplexer M2 reception computing, using the data query terminal of the look-up table LUT as processing unit 401a.
One execution mode, when image information maker 402 detects in multiimage, when frame is above-mentioned change state, synthetic image information info, it is such as logical value 1, the first pixel value P1 of previous frame FP is selected to be exported by the first output O1, using the data query starting point of the look-up table LUT as processing unit 401a to allow the first multiplexer M1; Allow numerical value Oc ' after the second multiplexer M2 Selecting operation be exported by the second output O2, using the data query terminal of the look-up table LUT as processing unit 401a simultaneously.Then, the look-up table LUT of processing unit 401a, according to data query starting point P1 and data query terminal Oc ', changes out and drives desired value T once.
Relatively, when image information maker 402 detects in multiimage, when frame is above-mentioned repeat mode, image information maker 402 generates an inhibit signal H to memory 403, above memory 403 does not rewrite the first pixel value P1 and the image information maker 402 synthetic image information info of previous frame (the second frame A), it is such as logical value 0, exported by the first output O1 to allow numerical value Oc ' after the first multiplexer M1 Selecting operation, using the data query starting point of the look-up table LUT as processing unit 401a; Allow the second multiplexer M2 select the second pixel value P2 of present frame FC to be exported by the second output O2, using the data query terminal of the look-up table LUT as processing unit 401a simultaneously.Then, the look-up table LUT of processing unit 401a, according to data query starting point Oc ' and data query terminal P2, changes out an overvoltage drive desired value T.
Illustrate, when operating, suppose repeating frame A in image F, A, B, the one ad-hoc location pixel value of B is respectively 100, 100, 200, 200, in order to allow image smoothing, the arithmetic element 401b of the overvoltage drive circuit 401 of the smoothing techniques device 400 of embodiment of the present invention receives present frame FC(as first frame B) the second pixel value P2=200, and receive previous frame FP(as second frame A by memory 403) the first pixel value P1=100, and two pixel value P1 and P2 are carried out a calculation process by arithmetic element 401b, such as carry out a hybrid operation-be about to (FP+FC)/2, to generate numerical value Oc '=(100+200)/2=150 after computing.Simultaneously, image information maker 402 receives image F, and generate an expression frame and be in pixel value becomes 200 change states image information info from 100, such as logical value 1, numerical value Oc '=150 after selecting pixel value P1=100 with the first multiplexer M1 controlling overvoltage drive circuit 401 and controlling the second multiplexer M2 Selecting operation.Then, processing unit 401a, according to this data query starting point 100 and data query terminal 150, finds out corresponding desired value T=165 in look-up table LUT.Desired value T=165 is replaced the second pixel value P2=200, as shown in the triangle T in Fig. 2.
Then, when image information maker 402 detects that frame is in repeat mode, previous frame FP(first frame B) the first pixel value 200 and present frame FC(second frame B) the second pixel value 200 repeat, image information maker 402 generates an inhibit signal H to memory 403, do not rewrite previous frame FP(second frame A with control storage 403) the first pixel value=100, now pixel value 100 and 200 corresponding to frame FC for frame FP is carried out computing by arithmetic element 401b, and such as hybrid operation obtains numerical value Oc '=150 after a computing.Then, image information maker 402 generates an image information info, such as logical value 0, with numerical value Oc '=150 after the first multiplexer M1 Selecting operation controlling overvoltage drive circuit 401 with control the second multiplexer M2 second pixel value P2=200.Therefore, processing unit 401a is according to this data query starting point 150 and data query terminal 200, in look-up table LUT, find out corresponding overvoltage drive desired value T '=205, and overvoltage drive desired value T '=205 replaced the second pixel value 200, the triangle T as in Fig. 2 ' shown in.Obtain one herein higher than the processing mode of the overvoltage drive desired value T ' of the second pixel value 200, can be described as overvoltage drive (Over drive) process.Should be noted, a kind of processing unit 400 utilizing overvoltage drive function to carry out the smoothing of dynamic image of embodiment of the present invention, also can recurrence be utilized to cross to drive the mode smoothingization process of (Recursive over drive) when in frame repeat mode, namely in frame for providing an inhibit signal H by processing unit 401a during repeat mode, previous frame FP is not rewritten with control storage 403.Detailed Operation mode, those skilled in the art can cross the control mode of driving with reference to figure 1D recurrence and push away, and repeats no more.
In addition, in another execution mode, processing unit 401a also can include two look-up tables to set the conversion of numerical value more accurately.Those skilled in the art can know according to above-mentioned explanation, repeats no more.
In above-mentioned execution mode, the operation method (dejudder) of trembling when the operation method of arithmetic element 401b is a removal of images motion is that the previous frame of image and present frame are carried out mixed processing (blending), is added numerical value except 2.Certain the present invention is also not limited thereto, and can adopt the various existing or future various operation methods developed at present.
In another execution mode, above-mentioned overvoltage drive circuit of the present invention can more comprise a switch, stops the compensation of overvoltage drive when image amount of movement is large, only adopts arithmetic element to carry out calculation process, such as hybrid mode process.Should be noted, amount of movement is citing greatly just, and another execution mode is when process decision chart picture is not suitable for smoothing processing of the present invention, with regard to tripping the method, cut off the smoothing function of overvoltage drive circuit, retain the overvoltage drive function of original existing overvoltage drive circuit.
Embodiments of the present invention are not limited to the repeating frame AABB being applied in 30 to 60 hertz, also the repeating frame AABBB of 24 to 60 hertz is can be applicable in another execution mode, as shown in Figure 5, and as smoothing techniques device 500 of the present invention be applied to the image of repeating frame AABBB time, three look-up table LUT process can be utilized in one execution mode, and a mixing execution mode of calculation process mode is as shown in the drawing, those skilled in the art can understand graphic and push away how to be applied in the overvoltage drive smoothing technique of this case, therefore repeats no more details.Certainly, other are also applicable at present in the existing or future repeating frame image developed.
Fig. 6 illustrates a kind of flow chart utilizing overvoltage drive function to carry out the processing method of the smoothing of dynamic image of an embodiment of the present invention.The method includes the following step:
Step S602: start.
Step S604: detect the continuous multiple frame of an image, it comprises a present frame and a previous frame, when a second value of present frame is different with one first numerical value of previous frame opposite position, generates one first image information, and enters step S606; When the second value of present frame is identical with the first numerical value of previous frame opposite position, generates one second image information, and enter step S608.
Step S606: generate the first object value between the first numerical value and second value according to the first image information, and first object value is replaced the second value of the opposite position of a present frame of two successive frames, enter step S610.
Step S608: generate one second desired value according to the second image information, and the second desired value is replaced the second value of the opposite position of the present frame of two successive frames.
Step S610: repeat step S604, until all whole numerical value of frame are all disposed.
Should be noted, first frame can process according to image information, be hypothesis first frame is initial condition (initial condition) herein.
Should be noted, in another execution mode, if the image F that the smoothing techniques device of embodiment of the present invention receives non-for repeating frame image (be such as the A of 30Hz, B, C, D ...), image information maker can provide function image being converted to repeating frame image, and exports the repeating frame image after conversion to overvoltage drive circuit.
In addition, the value of above-mentioned two these successive frame opposite positions represents in continuous print previous frame and present frame, the coordinate (X1 of a pixel of previous frame, Y1) with the coordinate (X2 of another pixel of present frame, Y2) position is identical, i.e. the position of two pixels identical X1=X2, Y1=Y2, and the value of two these successive frame opposite positions refers to the coordinate (X1 of a pixel of previous frame, Y1) value, 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, calculate the overvoltage drive value of multiimage, those overvoltage drive values multiimage comparatively is originally level and smooth, can reach and not need to redesign new chip, save production cost, solve the jitter of existing repeating frame image.
Though the present invention is described with execution mode above, therefore do not limit scope of the present invention, only otherwise depart from main idea of the present invention, the various distortion that person skilled in art carries out or change and all fall into claim of the present 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 makers
103,303,403 memories
LUT, LUT1, LUT2 look-up table
102a buffer
102b comparator
M1, M2 multiplexer.
Claims (12)
1. a processing unit for the smoothing of dynamic image, includes:
One image information maker, detect continuous multiple frame of an image, described continuous multiple frame comprises a present frame and a previous frame, when a second value of described present frame is different with one first numerical value of described previous frame opposite position, generates one first image information; When the described second value of described present frame is identical with described first numerical value of described previous frame opposite position, generate one second image information; And
One overvoltage drive circuit, generate a first object value between described first numerical value and described second value according to described first image information, and described first object value is replaced two successive frames one described in the described second value of opposite position of present frame; Or described overvoltage drive circuit generates one second desired value according to described second image information, and described second desired value is replaced the described second value of the opposite position of the described present frame of described two successive frames.
2. device according to claim 1, also comprise a memory, described memory is in order to store described present frame and described previous frame, and when described image information maker generates described second image information, described image information maker generates an inhibit signal, to control described first numerical value that described memory does not rewrite described previous frame.
3. device according to claim 1, also comprise a memory, described memory is in order to store described present frame and described previous frame, and when described image information maker generates described second image information, described first object value is rewritten to described memory according to described second image information by described overvoltage drive circuit.
4. device according to claim 1, wherein, described overvoltage drive circuit comprises a processing unit, described processing unit includes one first look-up table and a second look-up table, wherein said second value is a change state of described two successive frames time different from described first numerical value, and described first look-up table is in order to store the described first object value of described change state; Described second value is a repeat mode of described two successive frames time identical with described first numerical value, and described second look-up table is in order to store described second desired value of described repeat mode.
5. device according to claim 1, wherein, described image information maker includes:
One buffer, receives the described present frame of described two successive frames, and the previous frame of temporary described two successive frames; And
One comparator, the described present frame of more described two successive frames and the described second value of previous frame and described first numerical value, to generate described first image information or described second image information.
6. device according to claim 1, wherein, described overvoltage drive circuit comprises a processing unit, and described processing unit includes:
One first look-up table, in order to store described second value different from described first numerical value time one first variable corresponding to a change state of described two successive frames;
One second look-up table, in order to store described second value identical with described first numerical value time one second variable corresponding to a repeat mode of described two successive frames; And
One computing unit, generates described first object value according to described first variable; Or generate described second desired value according to described second variable.
7. device according to claim 6, wherein, described computing unit includes a gain unit, in order to provide a yield value to described computing unit, to adjust the size of described first object value and described second desired value.
8. device according to claim 1, wherein, described overvoltage drive circuit also comprises:
One arithmetic element, after carrying out a calculation process, generates numerical value after a computing to described first numerical value and described second value;
One first multiplexer, receive described first numerical value with described computing after numerical value, using the data query starting point of the look-up table as described overvoltage drive circuit; And
One second multiplexer, receives numerical value and described second value after described computing, using the data query terminal of the described look-up table as described overvoltage drive circuit;
Wherein, described first multiplexer and described second multiplexer determine to export described data query starting point and described data query terminal why numerical value according to described first image information or described second image information, and described look-up table is according to described data query starting point and described data query terminal, change out described first object value or described second desired value.
9. device according to claim 8, wherein, described calculation process is that described first numerical value and described second value are carried out a mixed processing.
10. device according to claim 1, wherein, described first numerical value, second value are pixel value.
The processing method of the smoothing of 11. 1 kinds of dynamic images, includes:
Detect continuous multiple frame of an image, it comprises a present frame and a previous frame, when a second value of described present frame is different with one first numerical value of described previous frame opposite position, generates one first image information; When the described second value of described present frame is identical with described first numerical value of described previous frame opposite position, generate one second image information; And
Generate the first object value between described first numerical value and described second value according to described first image information, and described first object value is replaced the described second value of the opposite position of the described present frame of described two successive frames; Or generate one second desired value according to described second image information, and described second desired value is replaced the described second value of the opposite position of the described present frame of described two successive frames.
12. methods according to claim 11, wherein, described first numerical value, second value are pixel value.
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