CN100435194C - Motion adaptive type image processing device and method for plasma display panel - Google Patents
Motion adaptive type image processing device and method for plasma display panel Download PDFInfo
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- CN100435194C CN100435194C CNB2006101394538A CN200610139453A CN100435194C CN 100435194 C CN100435194 C CN 100435194C CN B2006101394538 A CNB2006101394538 A CN B2006101394538A CN 200610139453 A CN200610139453 A CN 200610139453A CN 100435194 C CN100435194 C CN 100435194C
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
- G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
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Abstract
The present invention concerns a motion adaptive type image processing device and method for plasma display panel which reduces the stepping contour noise and semit noise generated in the display device driven by a subdomain scanning mode and displaying the image more clear. In order to achieve the object, the invention comprises a central value estimating step; a frame comparing step; an action generation judging step; a peripheral value estimating step; a noise reducing mapping selection step and a multichannel step.
Description
Technical field
The invention relates to the image processing apparatus of plasma display and image processing method, more specifically say, be stepping profile noise (contourstep noise) and the semitone noise (halftone noise) that takes place when plasm display device shows moving image about removing, thereby improve image quality, utilize the image-processing system of action (motion) accommodation mode of plasma display and method thereof.
Background technology
General plasma display (Plasma Display Panel, hereinafter to be referred as PDP), form a unit cell (cell) by the interlayer that forms between its front substrate and back substrate, filled the mixed gas main discharge gases such as (Ne+He) of neon (Ne), helium (He) or neon and helium and the inert gas that contains xenon on a small quantity in each cell (cell).During the HF voltage guiding discharge, inert gas produces vacuum ultraviolet (VacuumUltraviolet ray), makes the light-emitting phosphor that forms between interlayer, display frame.Aforesaid plasma display has frivolous structure, gets most of the attention as display device of new generation.
Fig. 1 is the structural representation of general plasma display.As shown in Figure 1, plasma display, by arrange in the display surface-face glass plate 101 of display frame by scan electrode 102 with keep that electrode 103 forms a plurality of keep the front substrate 100 of electrode pair and rearrange on the back glass plate 111 at the back side with above-mentioned a plurality of back substrates 110 of keeping a plurality of keeper electrodes 113 that electrode pair arranges across keep at a certain distance away be combined into abreast.
Arrange a plurality of discharge spaces on the back substrate 110, that is, arrange bar (stripe) type (or well (well) type) interlayer 112 that forms discharge cell (cell), and keep balance.Again, position discharge, produce vacuum ultraviolet a plurality of keeper electrode 113 and distribute abreast with interlayer 112.The top spraying of back substrate 110, for the R of visible light is radiated in display frame during orientation discharge, G, B fluorophor 114.114 lower dielectric layer 115 that form protection keeper electrode 113 of keeper electrode 113 and fluorophor.
Fig. 2 is the method synoptic diagram that shows the PDP image gray-scale level in the prior art.With reference to figure 2, the image gray-scale level display packing of PDP is described as follows: PDP is divided into the different a plurality of subdomains (sub-field) of number of light emission times with a frame (frame) and drives.
Again each subdomain (sub-field) is divided into: the reseting period that discharge takes place equably; During selecting during the location of discharge cell (cell) and showing keeping of GTG according to discharge time.For example, when using 256 GTG display images in advance, be equivalent to (16.67ms) during 1/60 second the frame (frame), will be divided into 8 subdomains (sub-field).
And 8 subdomains (sub-field) are divided into respectively again: during the location and during keeping.Wherein, during reseting period of each subdomain (sub-field) and the location, all identical in each subdomain (sub-field).And during keeping in each subdomain (sub-field), with 2
nThe ratio of (n=0,1,2,3,4,5,6,7) increases.As mentioned above, all different during the keeping in each subdomain (sub-field), therefore, GTG that can display image.
On the one hand, when mode shows moving image, around the object that moves by GTGs at different levels, incurring dislike profile will occur, reduce display quality with above-mentioned subdomain (sub-field).This stepping profile noise (contourstep noise) is called as " false profile noise (false contour noise) ".
Stepping profile noise (contourstep noise) is the trend that naked eyes are followed the trail of the object that moves in the picture; During 1 frame (frame), naked eyes are followed the trail of the trend of the object that moves in amphiblestroid fixed position; And during 1 frame (frame), adjacent pixels (pixel) brightness is accumulated in together around the object that moves in amphiblestroid fixed position, and people will discern the brightness different with true brightness.
For example, object moves right with the speed of 2 pixels/frame as shown in Figure 3, and then " 127 " GTG moves to the right with " 128 " GTG, and pixel (pixel) will be with the discharge of " 127 " GTG, and then discharges with " 128 " GTG.At this moment, the outline portion of mobile object is because the variation of GTG has the more profile noise (noise) of high brightness with generation.
That is, " 127 " GTG moves right with " 128 " GTG, and then in Fig. 4, spectators discern its brightness and are " 127 " GTG when following the trail of the object that moves with the A track; During object that tracking is moved with the C track, discern its brightness and be " 128 " GTG; But follow the trail of with overlooking part, promptly the B track move object the time, discern its brightness and be " 255 " GTG.
For addressing the above problem, once made and reduced stepping profile noise (contourstepnoise) with the following method:
At first, as shown in Figure 5, calculate the input GTG luminescent center of every frame (frame), calculate the mean trajectory of luminescent center based on this.Then, in the mean trajectory threshold value (threshold) in calculated luminescent center, extraction comprises the true GTG of luminescent center, and the GTG value to extract is handled the also error diffusion (Error Diffussion) or the shake view data such as (Dithering) of compensate for residual again.
Aforesaid, stepping profile noise (contourstep noise) sweep-out method in the prior art as shown in Figure 6, changes rapidly in order not make other luminescent center of adjacent gray scale levels, uses a small amount of true GTG and shows whole GTGs.Remaining GTG as mentioned above, show after image processings such as error diffusion or shake (image processing).For this reason, stepping profile noise (contourstep noise) has increased and has shown the GTG that lacks and noise (noise) that the image processing of using causes though reduce, and the image that shows will produce the phenomenon of bluring (bluring).
On the contrary, the maximum true GTG quantity that can show with PDP shows all frames (frame), then can reduce the semitone noise (halftone noise) that Flame Image Process causes, promote clearness (sharpness), but can't remove stepping profile noise (contourstep noise) at all.
Summary of the invention
In view of this, in order to solve the Flame Image Process problem of prior art ionic medium body display device, the objective of the invention is to avoid signal processing method to show whole GTG with reducing noise (noise), suitably grasp the importance of stepping profile noise (contourstep noise) or semitone noise (halftone noise), then, when showing the PDP image, forms suitable mapping (mapping), improve the image quality of demonstration according to the generating capacity of action (motion).
For addressing the above problem, the motion adaptive type image processing method of the plasma display among the present invention comprises: whether the central value of judging the present frame (frame) of input is that the central value that can have the value of stepping profile noise (contourstep noise) is judged the stage; By judgement to above-mentioned central value, if be judged to be the signal generation noise (noise) of input, frame (frame) comparison phase that compares with the pixel value of a last frame (frame) of having stored then; By the comparison of above-mentioned frame (frame), whether surpass critical value according to the variable quantity of pixel value, and judge whether to move action (motion) generation judgement stage of (motion); By above-mentioned action (motion) is judged, move (motion) if be judged to be, judge then whether all boundary values have all boundary values judgement stages of the value that produces stepping profile noise (contourstep noise); By judgement to above-mentioned all boundary values, produce noise (noise) if be judged to be, then select the noise (noise) of the mapping (mapping) of reduction stepping profile noise (contourstep noise) to reduce mapping (mapping) choice phase; By mapping (mapping) GTG of said process decision, show multichannel (multiplex) stage of GTG quantity changeably therebetween at a frame (frame).
The motion adaptive type image processing method of aforesaid plasma display, it is characterized in that above-mentioned noise (noise) reduces mapping (mapping) choice phase, in a plurality of mappings (mapping) that in mapping (mapping) portion of subdomain (sub-field), generate, the mapping (mapping) that true GTG quantity reduces is handled changeably.
The motion adaptive type image processing method of aforesaid plasma display, it is characterized in that above-mentioned frame (frame) comparison phase, in the object of making comparisons with a last frame (frame), the some units in pixel (pixel) unit, piece (block) unit or entire frame (frame) unit are set at comparison other.
The motion adaptive type image processing method of aforesaid plasma display, it is characterized in that the above-mentioned central value judgement stage, if being judged to be central value is the value that does not produce stepping profile noise (contourstepnoise), then select many mappings (mapping) of true GTG and output during a frame (frame).
The motion adaptive type image processing method of aforesaid plasma display, it is characterized in that the judgement stage takes place in above-mentioned action (motion), if do not move (motion), then select many mappings (mapping) of true GTG and output during a frame (frame).
The motion adaptive type image processing method of aforesaid plasma display, it is characterized in that above-mentioned all boundary values judgement stages, if being judged to be all boundary values is the value that does not produce stepping profile noise (contourstepnoise), then select many mappings (mapping) of true GTG and output during a frame (frame).
The action of plasma display (motion) accommodation mode image-processing system comprises: frame (frame) storage part of the pixel value information of each frame (frame) signal of temporary transient storage input; Whether the central value of judgment frame (frame) is the central value judging part that produces the value of stepping profile noise (contourstep noise); A last frame (frame) of storing in more above-mentioned frame (frame) storage part and the pixel value variable quantity of present frame (frame), and judge whether pixel value variable quantity relatively surpasses action (motion) the generation judging part of critical value; Whether all boundary values of judging the present frame (frame) of input are all boundary values judging parts that produce the value of stepping profile noise (contourstep noise); Be the minimum GTG of following the light center axle of the change of luminescent center between the GTG of the present frame (frame) that makes input, and ratio between true GTG, generate mapping (mapping) portion of different a plurality of mappings (mapping) respectively and in a plurality of mappings (mapping) that above-mentioned mapping (mapping) portion forms, select some, and multichannel (multiplex) portion of demonstration during a frame (frame).
The motion adaptive type image processing device of aforesaid plasma display is characterized in that also comprising: to the Pixel Information of the last frame (frame) stored in above-mentioned frame (frame) storage part and frame (frame) comparing section that present frame (frame) compares.The motion adaptive type image processing device of aforesaid plasma display is characterized in that above-mentioned mapping (mapping) portion is made up of mapping (mapping) piece (block) more than 2.
The invention has the beneficial effects as follows all GTGs that in plasm display device, can show with use subdomain (sub-field) scan mode, and action (motion) information according to frame (frame), usage operation (motion) ecad GTG display packing, reduce because stepping profile noise (contourstep noise) and the semitone noise (halftone noise) that the characteristic of type of drive produces, show the minimizing of noise (noise) generating capacity, distinct image.
Description of drawings
Fig. 1 is the structural representation of 3 electrode AC creeping discharge type PDP in the prior art.
Fig. 2 is the method synoptic diagram that shows the PDP image gray-scale level in the prior art.
Fig. 3 is stepping profile noise (contourstep noise) example schematic of PDP in the prior art.
Fig. 4 is the synoptic diagram of the stepping profile noise (contourstep noise) in the key diagram 3.
Fig. 5 is the curve map of the luminescent center of each GTG of the middle input of every frame (frame) in the prior art.
Fig. 6 is the GTG quantity synoptic diagram that extracts in order to remove stepping profile noise (contourstep noise) in the prior art.
Fig. 7 is the composition synoptic diagram of image processing apparatus in the embodiment of the invention.
The 8th, the process flow diagram of image processing method in the embodiment of the invention.
The symbol description of major part in the diagram
10: frame (frame) storage part 20: frame (frame) comparing section
40: judging part 50 takes place in action (motion): the central value judging part
60: all boundary values judging parts 70: mapping (mapping) portion
80: multichannel (multiplex) portion
Embodiment
Below, lift preferred embodiment, and conjunction with figs. is described in detail as follows:
Fig. 7 is the composition synoptic diagram of image processing apparatus in the embodiment of the invention, and Fig. 8 is in the embodiment of the invention, the process flow diagram of image processing method.
At first, to as shown in Figure 7, the general configuration of the action in the embodiment of the invention (motion) accommodation mode image-processing system is described as follows.
That is, as shown in the figure, image processing apparatus comprises: for the last frame (frame) imported more and present frame (frame), and temporarily store frame (frame) storage part 10 of the pixel value of a frame (frame); Frame (frame) comparing section 20 that each the pixel value variable quantity of a last frame (frame) of storage in present frame (frame) and above-mentioned frame (frame) storage part 10 of input is compared; If the pixel value variable quantity between frame (frame) in frame (frame) comparing section 20 relatively surpasses critical value, then be judged to be and move action (motion) the generation judging part 40 of (motion); Whether the central value of judgment frame (frame) is the central value judging part 50 that produces the value of stepping profile noise (contourstep noise); Whether all boundary values of judging the present frame (frame) of input are all boundary values judging parts 60 that produce the value of stepping profile noise (contourstep noise); Be the minimum GTG of following the light center axle of the change of luminescent center between the GTG of the present frame (frame) that makes input, and ratio between true GTG, generate mapping (mapping) portion 70 of different a plurality of mappings (mapping) respectively; In a plurality of mappings (mapping) that above-mentioned mapping (mapping) portion 70 forms, select some, and multichannel (multiplex) portion 80 of demonstration during a frame (frame).
On the one hand, as shown in Figure 8, based on said structure, image processing method of the present invention is by forming as the next stage:
At first, the Pixel Information of the picture signal of input is stored in frame (frame) storage part 10, and then, implementation center's value judging part 50 is judged the central value judgement stage ST1 of the central value of respective frame (frame).
Above-mentioned, central value is judged the stage, whether the central value of judging the present frame (frame) of input is the value that can have false profile (contourstep) noise (noise), if central value is the value that does not produce noise (noise), then with whether move (motion) irrelevant, select true GTG mapping (mapping) and use.
On the one hand, judge,, then carry out frame (frame) the comparison phase ST2 that makes comparisons with the pixel variable quantity of a last frame (frame) of having stored if the signal of input produces noise (noise) by above-mentioned central value.
At this moment,, compare, judge whether the variable quantity of pixel value has the difference bigger than critical value with the pixel value of each pixel of the present frame (frame) of input to a last frame (frame) of storage in frame (frame) storage part 10.Comparative result if current pixel (pixel) does not move (motion), is then selected many mappings (mapping) of true GTG and use.
If, by above-mentioned frame (frame) relatively, move (motion), then carry out the stage ST3 that judges all boundary values.
Above-mentioned all boundary values are judged the stage, judge whether all boundary values of confirming are the values that can have false profile (contourstep) noise (noise), if all boundary values are the values that does not produce noise (noise), then select many mappings (mapping) of true GTG quantity and use.
Again, judge by above-mentioned all boundary values, if the signal of input has the value of generation noise (noise), then execution can reduce false profile noise (false contour noise), uses the noise (noise) of non-true GTG mapping (mapping) to reduce mapping (mapping) choice phase ST4.
On the one hand, mapping (mapping) portion 70 generates subdomain (sub-field) mapping (mapping) piece (block) of the GTG of forming some more than 2 by the signal Processing of present frame (frame) information.
In the mapping of above-mentioned generation (mapping) piece (block), all pixels are formed from forming with true GTG to the GTG with the brightness central shaft that is positioned at light, have multiple ratio.
At this moment, be positioned at the brightness central shaft of light, the GTG of some is illustrated locational GTG among Fig. 5 and Fig. 6.
Aforesaid GTG when carrying out the picture signal processing by (the reverse gamma compensation) stage (not shown) of the contrary gamma compensated in the plasma display Flame Image Process stage, reduces the stepping profile (contourstep) that produces.In order to reduce stepping profile (contourstep), should only use, follow the brightness center GTG of the luminance brightness central shaft of luminescent center change minimum between GTG, therebetween GTG generates with additional method, thereby generates 256 GTGs of from 0 to 255.
Use above-mentioned brightness center GTG method, can reduce the false profile noise (falsecontour noise) that produces in the picture, but true (Real) GTG quantity that can show reduces, therefore need a large amount of shake (dithering) and error diffusion Flame Image Process such as (error diffusion), thereby produce a large amount of minus effects (semitone noise (halftone noise)).
On the contrary, if do not use said method, only a large amount of truly (Real) GTGs that use, show plasm display device, then on the contrary, the signal noise that Flame Image Process causes (noise) will reduce, but, owing to use the characteristic of the plasm display device of subdomain (sub-field) driving, will increase false profile noise (false contour noise).
Aforesaid true GTG after the contrary gamma compensated (reverse gammacompensation) of plasma display, during by halftoning (halftoning) phase process picture signal, reduces the semitone noise (halftone noise) that produces.
Again, multichannel (multiplex) stage ST6, mapping (mapping) GTG according to by the said process decision shows GTG quantity therebetween at a frame (frame) changeably.
Promptly, whether peripheral value information takes place to reach in central value information, action (motion) based on present frame (frame), select one in mapping (mapping) piece (block) that in above-mentioned mapping (mapping) portion 70, generates, and show output, obtain best image quality.
As mentioned above, the degree that changes according to a last frame (frame) and the middle pixel of present frame (frame) (or present frame (frame) and next frame (frame)) among the present invention, judge whether corresponding pixel moves (motion), reduce false profile noise (false contour noise) and semitone noise (halftone noise), more clearly display image.With aforesaid, the inventive method is called motion adaptive type GTG and shows (Motion Adaptive Gradation).
Therefore, if use " action (motion) ecad GTG display packing " among the present invention, then can reduce the false profile noise (false contour noise) and the semitone noise (halftone noise) that produce in the plasm display device, obtaining more clearly, the GTG of display image shows.
As mentioned above, the technical pattern among the present invention is not that any those skilled in the art under the situation that does not break away from the spirit and scope of the present invention, can carry out various changes and modification in order to qualification the present invention.
For example, in the foregoing description, relatively reach mapping (mapping) with frame (frame) unit (motion) information of having carried out moving and judge, but, can also judge with pixel unit or with piece (block) unit that a frame (frame) is divided into X * Y form.
As mentioned above; though the present invention about action (motion) adaptive type image processing device of plasma display and image processing method with preferred embodiment openly as above; right its is not in order to limit the present invention; any those skilled in the art; under the situation that does not break away from the spirit and scope of the present invention; can carry out various changes and modification, all technical schemes that form obtained of taking equivalence replacement or equivalents all drop within protection scope of the present invention.
Claims (9)
1, the motion adaptive type image processing method of plasma display comprises: whether the central value of judging the present frame of input is that the central value that can have the value of stepping profile noise is judged the stage; By judgement to above-mentioned central value, if be judged to be the signal generation noise of input, the frame comparison phase that compares with the pixel value of a last frame of having stored then; By the comparison of above-mentioned frame, whether surpass critical value according to the variable quantity of pixel value, and judge whether action generation judgement stage of moving; By above-mentioned action is judged, move if be judged to be, judge then whether all boundary values have all boundary values judgement stages of the value that produces stepping profile noise; By judgement,, then select the noise reducing mapping choice phase of the mapping of reduction stepping profile noise if be judged to be the generation noise to above-mentioned all boundary values; By the mapping GTG of said process decision, show the multichannel stage of GTG quantity changeably therebetween at a frame.
2, the motion adaptive type image processing method of plasma display according to claim 1, it is characterized in that the above-mentioned noise reducing mapping choice phase, in a plurality of mappings that in the mapping portion of subdomain, generate, the mapping that true GTG quantity reduces is handled changeably.
3, the motion adaptive type image processing method of plasma display according to claim 1, it is characterized in that above-mentioned frame comparison phase, in the object of making comparisons with a last frame, the some units in pixel unit, block unit or the entire frame unit are set at comparison other.
4, the motion adaptive type image processing method of plasma display according to claim 1, it is characterized in that the above-mentioned central value judgement stage, if to be judged to be central value is the value that does not produce stepping profile noise, then selects the many mappings of true GTG and export in an image duration.
5, the motion adaptive type image processing method of plasma display according to claim 1 is characterized in that the above-mentioned action generation judgement stage, if do not move, then selects the many mappings of true GTG and exports in an image duration.
6, the motion adaptive type image processing method of plasma display according to claim 1, it is characterized in that above-mentioned all boundary values judgement stages, if to be judged to be all boundary values is the value that does not produce stepping profile noise, then selects the many mappings of true GTG and export in an image duration.
7, the motion adaptive type image-processing system of plasma display comprises: the frame storage part of the pixel value information of each frame signal of temporary transient storage input; Whether the central value of judgment frame is the central value judging part that produces the value of stepping profile noise; A last frame of storing in the more above-mentioned frame storage part and the pixel value variable quantity of present frame, and judge whether pixel value variable quantity relatively surpasses the action generation judging part of critical value; Whether all boundary values of judging the present frame of input are all boundary values judging parts that produce the value of stepping profile noise; Be the minimum GTG of following the light center axle of the change of luminescent center between the GTG of the present frame that makes input, and ratio between true GTG, generate the mapping portion of different a plurality of mappings respectively and in a plurality of mappings that above-mentioned mapping portion forms, select some, and the multichannel portion that shows in an image duration.
8, the motion adaptive type image-processing system of plasma display according to claim 7 also comprises: to the Pixel Information of the last frame stored in the above-mentioned frame storage part and the frame comparing section that present frame compares.
9, the motion adaptive type image-processing system of plasma display according to claim 7, above-mentioned mapping portion is made up of 2 above mapping blocks.
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| KR1020050090179A KR100667323B1 (en) | 2005-09-27 | 2005-09-27 | Motion adaptive type image processing device and method for plasma display panel |
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| KR1020050090179 | 2005-09-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6040819A (en) * | 1996-06-11 | 2000-03-21 | Mitsubishi Denki Kabushiki Kaisha | Display apparatus for reducing distortion of a displayed image |
| CN1289110A (en) * | 1999-09-21 | 2001-03-28 | 达碁科技股份有限公司 | Image signal driving method capable improving moving image contour in display |
| CN1496547A (en) * | 2001-03-13 | 2004-05-12 | ��ķɭ���ó��˾ | Method of displaying video images on plasma display panel and corresponding plasma display panel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0893916B1 (en) * | 1997-07-24 | 2004-04-07 | Matsushita Electric Industrial Co., Ltd. | Image display apparatus and image evaluation apparatus |
| JP2994633B2 (en) * | 1997-12-10 | 1999-12-27 | 松下電器産業株式会社 | Pseudo-contour noise detection device and display device using the same |
| JP4029762B2 (en) | 2002-04-24 | 2008-01-09 | 松下電器産業株式会社 | Image display device |
| JP4113069B2 (en) * | 2003-07-30 | 2008-07-02 | 三星エスディアイ株式会社 | Video processing circuit, video processing method, video display device, and video display method |
-
2005
- 2005-09-27 KR KR1020050090179A patent/KR100667323B1/en not_active IP Right Cessation
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2006
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6040819A (en) * | 1996-06-11 | 2000-03-21 | Mitsubishi Denki Kabushiki Kaisha | Display apparatus for reducing distortion of a displayed image |
| CN1289110A (en) * | 1999-09-21 | 2001-03-28 | 达碁科技股份有限公司 | Image signal driving method capable improving moving image contour in display |
| CN1496547A (en) * | 2001-03-13 | 2004-05-12 | ��ķɭ���ó��˾ | Method of displaying video images on plasma display panel and corresponding plasma display panel |
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| CN1924973A (en) | 2007-03-07 |
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