CN100495516C - Dynamic figure indexing system and method - Google Patents
Dynamic figure indexing system and method Download PDFInfo
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- CN100495516C CN100495516C CNB2006100514693A CN200610051469A CN100495516C CN 100495516 C CN100495516 C CN 100495516C CN B2006100514693 A CNB2006100514693 A CN B2006100514693A CN 200610051469 A CN200610051469 A CN 200610051469A CN 100495516 C CN100495516 C CN 100495516C
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Abstract
Being applicable to a multimedia player, the disclosed hue expansion system generates a dithering data to a display device by using graphics generator under random dynamic mode. The hue expansion system includes following parts: a graphics generator in use for generating a vision data; receiving the vision data, a processing unit makes pre-positive fixed-pattern process for hue, then outputting the processed result; including a random number generation unit, and an unit for generating dynamic graphics index, the indexing system for dynamic graphics receives the vision data processed through pre-positive fixed-pattern process for hue. Using a random number generated by the random number generation unit, the unit for generating dynamic graphics index carried out calculation to generate an index of dynamic graphics as an index of the dithered data.
Description
Technical field
The present invention relates to a kind of tone amplification technique that digitized video shows the field that is used for, particularly relate to a kind of stochastic and dynamic figure index that adopts to reach the effect of tone amplification.
Background technology
LCD has low power consumption, low radiation, in light weight and slimming main advantages such as (volume are little), therefore be widely used among the portable mobile computer, recent lasting exploitation along with large size panel, LCD also occupies a tiny space in the type graphoscope gradually on the table, the trend that replaces traditional iconoscope TV is more arranged now, yet lcd technology manifests its technical bottleneck in the performance of dynamic image.
Liquid crystal display has its technical bottleneck on color representation, main cause is that LCD is when practical manifestation, can't truly present gradation as visible picture, the phenomenon that the real colour degree of show image lowers can take place in LCD when high display resolution in addition; And how to make LCD when show image, can as real color, be major issue to be solved in the lcd technology.
The tone amplification technique is generally in order to solve the difficulty of LCD in the color representation deficiency, it is applied to digitized video and shows the field, especially extensively be built in TFT-LCD in, it mainly is to have utilized shake (Dithering) and frame number rate control (Frame Rate Control, FRC), its principle takes space technology of mix colors Yi Da to arrive tone expanding effect visually for cooperating the synthesising physiological of human vision.
Please refer to Figure 1A, Figure 1A is the synoptic diagram of a typical tandem tone amplification system.Tandem tone amplification system 1 is to be made of a multimedia player 10 (Player), comprise a pattern generator 12 (Pattern Generator) in the multimedia player 10, comprise a processing unit 14 in the pattern generator 12, wherein, processing unit 14 can be a display card or a processor comprises time schedule controller 16 (T-CON), comprises a figure directory system 18 in the time schedule controller 16.Generally speaking, it is operating as pattern generator 12 input video signal datas to processing unit 14 tandem tone amplification system 1, processing unit 14 is done a preposition tone amplification with its video signal data and is handled (Fixed-pattern), and export video signals to figure directory system 18 by time schedule controller 16 again, to carry out the processing of rear end display device tone amplification.
Please be simultaneously with reference to shown in Figure 1B, Figure 1B is the synoptic diagram of a figure directory system, wherein, figure directory system 18 comprises a data analysis unit 181, a figure concordance list 182 and a data processing unit 183.Existing tone amplification technique mostly uses a fixing figure concordance list 182 (or claiming patterntable), figure concordance list 182 is directly imported or burned time schedule controller in, with the foundation of shaking as image; Wherein, the video signal data of handling through the tone amplification of front end inputs in the data analysis unit 181 for the i position, according to the fixing figure concordance list 182 of its video signal data inquiry, export with the j position via the shake data that data processing unit 183 computings determine, wherein j is less than or equal to i again.
And use fixing figure index to have two shortcomings: one, be difficult for searching out the reference value of optimization figure index; Two; when the front end processing unit is implemented preposition tone amplification technique simultaneously; the synthetic unexpected spuious lines of tone amplification on the display device of Chang Liantong rear end; often regular meeting is with tangible stepped striped in picture performance gradual change, and this series connection tone amplification device towards phenomenon to the picture quality influence greatly.
Summary of the invention
The objective of the invention is to utilize stochastic and dynamic figure directory system, to reach the effect of tone amplification.
Another purpose of the present invention is effectively to solve the problem that the amplification of LCD tone and the tone amplification that preposition tone amplification is handled are connected and dashed mutually.
Tone amplification system of the present invention is applied in the multimedia player, and the generation one shake data (Dithering) of stochastic and dynamic are to a display device.Wherein, the tone amplification system comprises: a pattern generator (Pattern Generator) produces a video signal data; One processing unit, receiving video data are done a preposition tone amplification and are handled the output of (Fixed-pattern) back; An and dynamic figure indexing system, comprise a random number generation unit and a dynamic figure indexing generation unit, receive the video signal data after preposition tone amplification is handled, via this random number generation unit computing gained one random number at random, to produce a dynamic figure indexing, shake the index of data through the computing of dynamic figure indexing generation unit as this.
In addition, dynamic figure indexing of the present invention system stochastic and dynamic produces the method for figure index, be applied to a dynamic figure indexing system, in order to improve the LCD color representation, wherein the dynamic figure indexing system receives a video signal data, and utilize the random number generation unit that its each sub-pixel (sub-pixel) data are processed, and then interweave and form the shake data (Dithering) of pixel (Pixel), data line (Line) and three dimensions of frame (Frame is called picture again).The method that stochastic and dynamic produces the figure index comprises the following step: provide a video signal data to this dynamic figure indexing system; Utilize the dynamic generation one of random number generation unit random number at random; M the position of getting random number at random is as pointer; With the position code (1,1) of pointer as a dynamic figure indexing matrix; Repeat to capture step M time of pointer, guide position code as M * 1 of dynamic figure indexing matrix with M m position will asking for; And and utilize the position code of M * 1 to make the two-dimentional dynamic figure indexing matrix that M * N is produced in a computing.
In addition, according to an aspect of the present invention, also provide a kind of dynamic figure indexing system, signal according to time schedule controller, produce shake data to display panel, this dynamic figure indexing system comprises: a random number generation unit, in order to produce a random number at random; An and dynamic figure indexing generation unit, by this random number at random of this random number generation unit gained, get wherein m position work one pointer, and intercept several these pointers with as a vector position sign indicating number, this vector position sign indicating number via computing to produce the dynamic figure indexing matrix of one M * N, wherein, M, N are respectively the dimension of the row and column of dynamic figure indexing matrix, and M, N and m are positive integer.
Description of drawings
Figure 1A is a typical tandem tone amplification system synoptic diagram;
Figure 1B is prior art one a figure directory system synoptic diagram;
Fig. 2 A is the present invention's one tandem tone amplification system synoptic diagram;
Fig. 2 B is the synoptic diagram of the present invention one dynamic figure indexing system;
Fig. 3 A is the synoptic diagram of the present invention's one a random number generation unit and a dynamic figure indexing generation unit;
Fig. 3 B is the linear feedback shift buffer synoptic diagram of the present invention's one random number generation unit;
Fig. 4 A is the synoptic diagram of one or four bit linear feedback shift buffers;
Fig. 4 B is the synoptic diagram of one or six bit linear feedback shift buffers;
Fig. 4 C is the synoptic diagram of one or eight bit linear feedback shift buffers;
Fig. 4 D is the synoptic diagram of 12 bit linear feedback shift buffers;
Fig. 5 A is the grouping of the random number at random in the present invention's one dynamic figure indexing generation unit synoptic diagram;
Fig. 5 B is the grouping of the random number at random in the present invention's one dynamic figure indexing generation unit synoptic diagram;
Fig. 5 C is the grouping of the random number at random in the present invention's one dynamic figure indexing generation unit synoptic diagram;
Fig. 6 A is a dynamic figure indexing matrix embodiment;
Fig. 6 B is another dynamic figure indexing matrix embodiment;
Fig. 6 C is another dynamic figure indexing matrix embodiment;
Fig. 7 is the pointer producing method and the degree of randomness relativeness synoptic diagram of dynamic figure indexing matrix of the present invention;
Fig. 8 (A) presents the color graphics signal on display for prior art;
Fig. 8 (B) presents the color graphics signal on display for the present invention;
Fig. 8 (C) presents the nature image on display for prior art;
Fig. 8 (D) presents the nature image on display for the present invention;
The synoptic diagram of unexpected figure line appears in Fig. 9 (A), (B) in level and vertical direction for conventional tandem tone amplification system; And
Fig. 9 (C), (D) show the synoptic diagram of level and vertical direction for tandem tone amplification system of the present invention.
The reference numeral explanation
3 display device, 18 figure directory systems
28 dynamic figure indexing systems, 182 figure concordance lists
282 random number generation units, 2822 linear counting devices
283 dynamic figure indexing generation units
1,2 tandem tone amplification systems, 10,20 multimedia players
12,22 pattern generators, 14,24 processing units
16,26 time schedule controllers, 181,281 data analysis unit
183,284 data processing units
2821a, 2821b, 2821c, 2821d, 2821e linear feedback shift buffer
A, b, c, d pointer
N
1, N
2, N
3, N
4, K
1, K
3, K
5Predetermined number
B[0], B[1], B[2], B[3], B[4], B[5], B[6], B[7], B[8], B[9], B[0] ', B[1] ', B[2] ', B[3] ', B[4] ', B[5] ', B[6] ', B[7] ', B[8] ', B[9] ' position
Embodiment
The invention provides a kind of stochastic and dynamic figure index, the neutral gear between picture can dynamically and at random produce new dynamic figure indexing matrix (table), is different from figure concordance list fixing in the prior art.
Please refer to Fig. 2 A, Fig. 2 A is one embodiment of the invention one tandem tone amplification system synoptic diagram.Constitute by a multimedia player 20, comprise a pattern generator 22 in the multimedia player 20, comprise a processing unit 24 in the pattern generator 22, processing unit 24 comprises time schedule controller 26 (T-CON), comprises a dynamic figure indexing system 28 in the time schedule controller 26.
Fig. 2 B is the synoptic diagram of an embodiment dynamic figure indexing system.Dynamic figure indexing system 28 comprises a data analysis unit 281, a random number generation unit 282, a dynamic figure indexing generation unit 283 and a data processing unit 284.Wherein data analysis unit 281 receptions are from the i position video signal data of time schedule controller 26, its video signal data is inputed to random number generation unit 282 with sub-pixel (Sub-Pixel) video signal data, wherein, each pixel can be divided into three sub-pixels, that is: red (R), green (G), blue (B) three sub-pixels or yellow (Y), dark green (C), three sub-pixels of carmetta (M) are to wield the color that each pixel is showed.Certainly, each pixel also can be divided into four sub-pixels, that is: red (R), green (G), blue (B) three sub-pixels and another the 4th sub-pixel, this another the 4th sub-pixel can be color arbitrarily, as: red (R), green (G), blue (B), yellow (Y), purple (V), indigo look (I), carmetta (M), dark green (C) or colourless (colorless), and each pixel also can be divided into six sub-pixels or eight sub-pixels, and each arrangement of subpixels and color are selected voluntarily by the user.
Comprise a plurality of linear feedback shift buffers (Linear FeedbackShift Register in the random number generation unit 282, LFSR), to produce at random random number and to input to dynamic figure indexing generation unit 283, utilizing at random, random number produces a dynamic figure indexing matrix (Dynamic Index Matrix) to export data processing unit 284 to, by data processing unit 284 outputs one j position shake data (Dithering), wherein i is more than or equal to j at last.
The present invention utilizes and produces the high random number at random of degree of randomness, and the numerical value of random number at random that promptly occurs and capture is uniformly, and calculation obtains the dynamic figure indexing matrix with the foundation as the shake data.When the shake data between each or several frames (frame) data, the reference that is applied in the pixel and upgrades as image, its flutter effect can be broken up profile.And since the random number in this dynamic figure indexing matrix at random and degree of randomness uniform, all add this shake mixed color effect as if whole image, the border of its digitized video will be by softening.For according to the shake data and then be woven into the image of pixel (pixel), data line (line) and three dimensions of frame (frame), can use the existing digital color of less bits numerical table than long number, form the preferable picture of image quality.
Below will enumerate several embodiment so that the generation of random number at random to be described, and how by random number at random and then calculate the dynamic figure indexing matrix, but be not in order to limit the scope of the invention; As different random number producing methods, but institute desires to be effective when identical, also do not break away from spirit of the present invention.
Please be simultaneously with reference to Fig. 3 A and Fig. 3 B, Fig. 3 A is the synoptic diagram of the present invention's one a random number generation unit and a dynamic figure indexing generation unit, Fig. 3 B is the synoptic diagram of a linear feedback shift buffer.Wherein, comprise an at least one linear feedback shift buffer 2821a (LFSR) and a linear counting device 2822 in the random number generation unit 282, in the present embodiment as an illustration, to explain 282 runnings of random number generation unit with the LFSR 2821a of 10 (10Bits).
In the present embodiment, LFSR 2821a is the computing of the video signal data that is received being XOR (XOR), with very big bit sequence of generation cycle.Wherein in the present embodiment at random the generation step of random number be: receive a video signal data and produce the initial value of random number as LFSR 2821a, wherein, if when video signal data is zero, random number will still export 0 with the shake data at random; If when video signal data is non-vanishing, it is as the initial value of LFSR2821a, video signal data is one 10 a digital signal again, and it is B[0 in regular turn that its signal is arranged from lowest order to most significant digit], B[1], B[2], B[3], B[4], B[5], B[6], B[7], B[8], B[9] totally ten.B[2 wherein] and B[9] will become B[0 in the random number at random via the result that XOR gate calculated] ', and initial value B[0], B[1], B[2], B[3], B[4], B[5], B[6], B[7], B[8] successively as the B[1 of random number at random] ', B[2] ', B[3] ', B[4] ', B[5] ', B[6] ', B[7] ', B[8] ', B[9] ', so, just, produce a random number at random.The random number at random that is produced is through linear counting device (Line Counter), with decision data are added 1 or do not add 1, and feed back to LFSR 2821a, the LFSR 2821a random number at random that it is new on the one hand exports dynamic figure indexing generation unit 283 to, to shake (Dithering), on the other hand with this new random number at random as the new initial value of LFSR 2821a.
In this way, the new random number at random that produces produces next one random number at random more promptly as the new initial value of LFSR 2821a, so constantly circulation.The following feature of the tool of random number at random of Chan Shenging (decimally statement) in the manner described above:
(1) each random number that produces does not exceed 210 scopes, promptly more than or equal to 1 and smaller or equal to 1023 integer.
(2) cycle period is 1023 times (deduction 0 occur probability), and promptly in 1023 continuous random numbers of intercepting arbitrarily, each integer between 1 to 1023 (comprise 1 and 1023 itself) all only can occur once.
(3) whole random number sequence is long more, and the probability that each integer between 1 to 1023 occurs will infinitely be approached same value, be 1/1023.
Dynamic figure indexing system in the present invention, except receiving ten video signal data in the foregoing description, also can receive the not video signal data of coordination, only need the linear feedback shift buffer in the random number generation unit is done a displacement, be expressed as the different synoptic diagram of linear feedback shift buffer in the random number generation unit that receive figure place respectively as Fig. 4 A, B, C, D.Wherein, Fig. 4 A is the synoptic diagram of one or four bit linear feedback shift buffers; Fig. 4 B is the synoptic diagram of one or six bit linear feedback shift buffers; Fig. 4 C is the synoptic diagram of one or eight bit linear feedback shift buffers; Fig. 4 D is the synoptic diagram of 12 bit linear feedback shift buffers, produce the embodiment of the mode of random number at random as above-mentioned Fig. 3, so do not add to give unnecessary details at this.
Please refer to Fig. 5 A, Fig. 5 A is the random number at random in one embodiment of the invention dynamic figure indexing generation unit.Wherein random number can be considered how group Dn group position institute combines at random, n=1～N wherein, each D1～DN comprises m position, with present embodiment, will be at random random number be B[0 in regular turn from lowest order to most significant digit] ', B[1] ', B[2] ', B[3] ', B[4] ', B[5] ', B[6] ', B[7] ', B[8] ', B[9] ', be divided into D
1, D
2, D
3, D
4, D
5Five groups, each D
1～D
5In comprise 2 positions, i.e. D
1In comprise B[1] ' and B[0] ', D
2In comprise B[3] ' and B[2] ' ... by that analogy.Right itself and non-limiting scope of the present invention, its packet mode can be according to different demands, and different row's methods is arranged.
The dynamic figure indexing generation unit is receiving one at random after the random number, can choose wherein one group of DX as a pointer a wherein, X=1～N; Or choose one group of DY as guide, with indication the group DX that should capture, wherein, X=1～N and Y=1～N.For example: in Fig. 5 B, from getting D in the random number at random
1As a pointer a, to do the follow-up position code (PosCode) that will produce dynamic figure indexing; Or as among Fig. 5 C, with D in the random number at random
1In two positions guide as one, with indication the pointer that should capture why organize, to work as D in the present embodiment
1In two be 00 o'clock, promptly be directed to D
2As pointer a, work as D
1In two be 01 o'clock, promptly be directed to D
3As pointer a, work as D
1In two be 10 o'clock, promptly be directed to D
4As pointer a, work as D
1In two be 11 o'clock, promptly be directed to D
5As pointer a.And repeat this process, with the random number of bringing in constant renewal at random capture remaining position code b, c ..., and produce the column vector position code of a M * 1, so that follow-uply can calculate out one M * N dynamic figure indexing matrix (Dynamic Index Matrix); The capable vector position sign indicating number that can also this mode produces one 1 * N, and calculate out one M * N dynamic figure indexing matrix with this journey vector position sign indicating number; Also or when obtaining a pointer, be about to this pointer and do a row operation, produce delegation's vector, and repeat this process and obtain a plurality of row vectors, and be combined into one M * N dynamic figure indexing matrix.
And producing the method for dynamic figure indexing at random, the dynamic figure indexing generation unit comprises the following step: provide one non-0 video signal data to the dynamic figure indexing system; The receiving video data are utilized the dynamic generation one of random number generation unit random number at random; M the position of getting random number at random is as pointer; With the position code (1,1) of pointer as a dynamic figure indexing matrix; Repeat to capture pointer M time of different random random number, guide position code as M * 1 of this dynamic figure indexing matrix with M m position will asking for; And and utilize the position code of M * 1 to make the two-dimentional dynamic figure indexing matrix that M * N is produced in a computing.
Perhaps the method that produces dynamic figure indexing with horizontal computing comprises the following step: provide one non-0 video signal data to the dynamic figure indexing system; The receiving video data are utilized the dynamic generation one of random number generation unit random number at random; M the position of getting random number at random is as pointer; With the position code (1,1) of pointer as a dynamic figure indexing matrix; Repeat to capture pointer N time of different random random number, guide capable vector position sign indicating number as 1 * N of this dynamic figure indexing matrix with N m position will asking for; And and utilize the position code of 1 * N to make the two-dimentional dynamic figure indexing matrix that M * N is produced in a computing.
Or provide one non-0 video signal data to the dynamic figure indexing system; The receiving video data are utilized the dynamic generation one of random number generation unit random number at random; M the position of getting random number at random is as pointer; With the position code (1,1) of pointer as a dynamic figure indexing matrix; Position code (1,1) is formed delegation's vector with horizontal computing; Repeat to capture pointer M time of different random random number, and each time the position code of gained to produce M row by computing vectorial; Reach the two-dimentional dynamic figure indexing matrix that M capable vector is combined as in regular turn one M * N.
Please refer to Fig. 6 A, Fig. 6 A is a dynamic figure indexing matrix embodiment, utilizes the column vector position code of M * 1 to add predetermined severals Nn*3, and is listed as the n of dynamic figure indexing matrix successively, wherein n=1～N.For example: one 4 * 4 dynamic figure indexing matrix, wherein, pointer a=00, b=01, c=10, d=11, predetermined several N
1=[00], N
2=[01], N
3=[10], N
4=[11], one 4 * 1 the column vector position code of utilizing that pointer a, b, c, d formed adds [00] * 3 as the 1st row with its position code, and position code adds that [01] * 3 is as the 2nd row, position code adds [10] * 3 as the 3rd row, and position code adds that [11] * 3 is as the 4th row.
Please refer to Fig. 6 B, Fig. 6 B is another dynamic figure indexing matrix embodiment, the column vector position code of utilizing M * 1 is as the 1st row of dynamic figure indexing matrix, and the position code of M * 1 anti-phase (get 1 complement code) back is added a predetermined value K with the 2nd row again as the 2nd row
3As the 3rd row, the 3rd row are anti-phase again as the 4th row, the 4th row are added K
5As the 5th row, so successively that the 2n-1 row are anti-phase as behind the 2n row, again the 2n row are added a predetermined value K
2n+1As the 2n+1 row, wherein, n=1～N, and then form a dynamic figure indexing matrix.
For example: one 4 * 4 dynamic figure indexing matrix, wherein, pointer a=00, b=01, c=10, d=11, predetermined several K
3=[10], the column vector position code of utilizing pointer a, b, c, d to be formed is listed as the 1st, and its anti-phase back of the 1st row as the 2nd row, is added K with the 2nd row again
3=[10] are as the 3rd row, and are at last that the 3rd row are anti-phase again as the 4th row.
Please refer to Fig. 6 C, Fig. 6 C is another dynamic figure indexing matrix embodiment, for the column vector position code of utilizing M * 1 adds a predetermined value K
1As the 1st row of dynamic figure indexing matrix, the anti-phase back of the 1st row as the 2nd row, is added a predetermined value K with the 2nd row again
3As the 3rd row, the 3rd row are anti-phase again as the 4th row, the 4th row are added K
5As the 5th row, so the column vector position code with M * 1 adds a predetermined value K
2n-1As the 2n-1 row, again that the 2n-1 row are anti-phase as behind the 2n row, again the 2n row are added a predetermined value K
2n-1As the 2n+1 row, wherein, n=1～N, and then form a dynamic figure indexing matrix.
For example: one 4 * 4 dynamic figure indexing matrix, wherein, pointer a=00, b=01, c=10, d=11, predetermined several K
1=[10], the position code of utilizing pointer a, b, c, d to be formed adds predetermined several K
1As the 1st row, its anti-phase back of the 1st row as the 2nd row, is added K with the 2nd row again
3=[10] are as the 3rd row, and are at last that the 3rd row are anti-phase again as the 4th row.
Three embodiment all do an explanation with the column vector position code among above Fig. 6, and so it is not in order to limit the scope of the invention.Also can need replace M * 1 column vector position code with the capable vector position sign indicating number of one 1 * N, and in identical calculation mode, computing produces one M * N dynamic figure indexing matrix line by line according to the deviser; Or do horizontal row operation respectively with each obtained position code, a plurality of row sets of gained are become one M * N dynamic figure indexing matrix.
Please refer to Fig. 7, Fig. 7 is that the pointer producing method and the degree of randomness of dynamic figure indexing matrix of the present invention represented.Because concerning shake (dithering) indexes dynamic that is produced, the calculation method of position code changes whether enough degree of randomness (randomization) are arranged, so four kinds of modes that produce pointer of following proposition are with the decision position code; And evenly whether can judging with column diagram of degree of randomness wherein, degree of randomness is even more, then unreasonablely thinks.
Its pointer producing method of Fig. 7 A is to choose at random wherein one group of D of random number
1As pointer, to do the follow-up position code foundation that will produce dynamic figure indexing, its shown degree of randomness is more inhomogeneous.
Its pointer producing method of Fig. 7 B is to choose at random wherein one group of D of random number
1As guide, indication the pointer that should capture why organize, promptly work as D
1Be 11 o'clock, then represent D
4As pointer, D
1Be 10 o'clock, then represent D
3As pointer, D
1Be 01 o'clock, then represent D
2As pointer, D
1It is 00 o'clock, then with D
1Itself is as pointer; To do the follow-up position code foundation that will produce dynamic figure indexing, resulting degree of randomness is compared even that Fig. 7 A comes.
The principle that Fig. 7 C pointer produces is similar to Fig. 7 B, just its D
1Pure in guiding, promptly work as D
1Be 11 o'clock, then represent D
5As pointer, D
1Be 10 o'clock, then represent D
4As pointer, D
1Be 01 o'clock, then represent D
3As pointer, D
1It is 00 o'clock, then with D
2As pointer, resulting degree of randomness is compared even that Fig. 7 A comes.
Among Fig. 7 D, random number still is divided into five groups at random, but its D
1Represent B[1] ' and B[0] ', D
2Represent B[7] ' and B[2] ', D
3Represent B[6] ' and B[3] ', D
4Represent B[9] ' and B[4] ', D
5Represent B[8] ' and B[5] ', and use D
1As guide, work as D
1Be 11 o'clock, then represent D
5As pointer, D
1Be 10 o'clock, then represent D
4As pointer, D
1Be 01 o'clock, then represent D
3As pointer, D
1It is 00 o'clock, then with D
2As pointer, resulting degree of randomness is compared even that Fig. 7 A comes.
Fig. 8 (A) with (B) be respectively prior art and the present invention and be presented on color graphics signal (color bar) on the display.Fig. 8 A is presented on the practical manifestation on the display after showing calculation through the classical shade amplification technique, still 6 obvious gray scale stripeds (vertical stripes) as can be seen; And after the calculation of Fig. 8 B demonstration through the dynamic tone amplification technique of the present invention, its gray scale striped will disappear because of dynamically shaking (dynamic dithering), presents the effect of 8 displays.
Fig. 8 (C) with (D) be respectively prior art and the present invention and be presented on natural image (blue sky) on the display.Relatively via the natural image frame that is presented after classical shade amplification technique (Fig. 8 C) and dynamic tone amplification technique of the present invention (Fig. 8 D) computing, also can handle because of the dynamic tone amplification technique of the present invention, and irregular low key tone figure line (irreglar contour) in its picture is disappeared, and then make picture that hyperchromic sensation be arranged.
Fig. 9 (A) and (B) by conventional tandem tone amplification system respectively level and vertical direction because of being produced conflict phenomenon mutually through former and later two tones amplifications, unexpected figure line to occur, this problem is quite easily seen on the classical shade amplification technique and be can't stand.And Fig. 9 (C) with (D) for utilizing tandem tone amplification system of the present invention, can obviously observe out the processing of passing through dynamic tone amplification technique, can significantly improve this problem.
In the top preferred embodiment of narrating, can know, the present invention utilizes the dynamic figure indexing system effectively to reach the effect of tone amplification, with the existing digital color of less bits numerical table, also can effectively solve the amplification of LCD tone and the tone amplification that preposition tone amplification the is handled problem that (Cascade) dash mutually of connecting than long number.
The above is to utilize preferred embodiment to describe the present invention in detail, but not limits the scope of the invention, and those skilled in the art suitably does slightly change and adjustment, will not lose main idea of the present invention place, does not also break away from the spirit and scope of the present invention.
Claims (20)
1. a dynamic figure indexing system according to the signal of time schedule controller, produces shake data to display panel, and this dynamic figure indexing system comprises:
One random number generation unit is in order to produce a random number at random; And
One dynamic figure indexing generation unit, by this random number at random of this random number generation unit gained, get wherein m position work one pointer, and intercept several these pointers with as a vector position sign indicating number, this vector position sign indicating number via computing to produce the dynamic figure indexing matrix of one M * N, wherein, M, N are respectively the dimension of the row and column of dynamic figure indexing matrix, and M, N and m are positive integer.
2. dynamic figure indexing as claimed in claim 1 system, wherein this random number generation unit is a linear feedback shift buffer.
3. dynamic figure indexing as claimed in claim 2 system, wherein this linear feedback shift buffer is to be produced this random number at random by XOR.
4. dynamic figure indexing as claimed in claim 1 system, wherein this at random random number combined n=1～N wherein, each D by many group Dn groups position
1～D
NComprising m position, is to utilize a wherein D
XMake a pointer, wherein X=1～N.
5. dynamic figure indexing as claimed in claim 1 system, wherein this at random random number combined n=1～N wherein, each D by many group Dn groups position
1～D
NComprising m position, is to utilize a wherein D
YDo one and guide, to indicate a D that should capture
XAs this pointer, wherein this X=1～N and Y=1～N.
6. dynamic figure indexing as claimed in claim 1 system, wherein this random number generation unit is to be produced this random number at random by XOR.
7. dynamic figure indexing as claimed in claim 1 system, wherein this vector position sign indicating number can be a M * 1 column vector position code.
8. dynamic figure indexing as claimed in claim 7 system, wherein the dynamic figure indexing matrix of this M * N adds that by the column vector position code of this M * 1 predetermined several Nn*3 are listed as this matrix n, wherein, predetermined several Nn are the numbers in [00], [01], [10], [11], n=1～N.
9. dynamic figure indexing as claimed in claim 1 system, the dynamic figure indexing matrix of this M * N wherein, is got the 1st row after 1 the complement code as the 2nd row as the 1st row by the column vector position code of this M * 1, again the 2nd row is added a predetermined value K
1As the 3rd row, the 3rd row are got 1 complement code again as the 4th row, so successively the 2n-1 row are got 1 complement code as the 2n row after, again the 2n row are added a predetermined value Kn as the 2n+1 row, wherein, predetermined value K
1..., Kn is the number in [00], [01], [10], [11], n=1～(N/2-1).
10. dynamic figure indexing as claimed in claim 1 system, wherein this vector position sign indicating number can be the capable vector position sign indicating number of one 1 * N.
11. dynamic figure indexing as claimed in claim 10 system, wherein the dynamic figure indexing matrix of this M * N is that capable vector position sign indicating number by this 1 * N adds that predetermined several Nn*3 are capable as this matrix n, wherein, predetermined several Nn are the numbers in [00], [01], [10], [11], n=1～N.
12. dynamic figure indexing as claimed in claim 10 system, the dynamic figure indexing matrix of this M * N wherein, is got the 1st row after 1 the complement code as the 2nd row as the 1st row by the capable vector position sign indicating number of this 1 * N, again the 2nd row is added a predetermined value K
1As the 3rd row, the 3rd row is got 1 complement code again as the 4th row, so successively with 2n-1 capable get 1 complement code as 2n capable after, add that a predetermined value Kn is capable as 2n+1 with 2n is capable again, wherein, predetermined value K
1..., Kn is the number in [00], [01], [10], [11], n=1～(N/2-1).
13. a stochastic and dynamic produces the method for figure index, be applied to a dynamic figure indexing system, in order to improve the LCD color representation, wherein this system of dynamic figure indexing system receives a video signal data, and utilize the random number generation unit in this dynamic figure indexing system that its each sub-pixel data is processed, form the shake data of pixel, data line and three dimensions of frame and interweave, the method that this stochastic and dynamic produces the figure index comprises the following step:
Provide one non-0 video signal data to this dynamic figure indexing system;
Receive this video signal data, utilize the dynamic generation one of this random number generation unit random number at random;
Get this at random m of random number position as pointer;
With the position code of this pointer as a dynamic figure indexing matrix;
Repeat to capture step M time of this pointer, guide M * 1 column vector position code as this dynamic figure indexing matrix with M m position will asking for; And
And the column vector position code of utilizing this M * 1 makes the two-dimentional dynamic figure indexing matrix that M * N is produced in a computing, and wherein, M, N are respectively the dimension of the row and column of dynamic figure indexing matrix, and M, N and m are positive integer.
14. method as claimed in claim 13, wherein this random number generation unit can be realized by a linear feedback shift buffer.
15. method as claimed in claim 14, wherein this at random random number be that this video signal carries out XOR by this linear feedback shift buffer and produces.
16. method as claimed in claim 13, wherein this at random random number be that this video signal carries out XOR by this random number generation unit and produces.
17. method as claimed in claim 13, wherein this at random random number combined n=1～N wherein, each D by many group Dn groups position
1～D
NComprising m position, is to utilize a wherein D
XMake a pointer, wherein X=1～N.
18. method as claimed in claim 13 wherein also comprises a step before as the step of pointer in m of random number position at random getting this: this at random random number combined n=1～N wherein, each D for many group Dn groups
1～D
NComprising m position, is to utilize a wherein D
YDo one and guide, to indicate a D that should capture
XAs this pointer, wherein this X=1～N and Y=1～N.
19. method as claimed in claim 13, wherein the two-dimentional dynamic figure indexing matrix formation method of this M * N system adds that with the column vector position code of this M * 1 predetermined several Nn*3 are listed as this matrix n, wherein, predetermined several Nn are the numbers in [00], [01], [10], [11], n=1～N.
20. a tone amplification system is applied in the multimedia player, utilizes the mode of stochastic and dynamic to produce in shake data to a display device, this tone amplification system comprises:
One pattern generator produces a video signal data;
One processing unit is arranged in this pattern generator, receives this video signal data and does to export after a preposition tone amplification is handled;
Time schedule controller is arranged in this processing unit, and this video signal data that receives after handling through preposition tone amplification is handled back output; And
One dynamic figure indexing system, be arranged in this time schedule controller, comprise a random number generation unit and a dynamic figure indexing generation unit, receive this time schedule controller and supply with this video signal data, via this random number generation unit computing gained one random number at random, through this dynamic figure indexing generation unit computing producing a dynamic figure indexing, with index as these shake data.
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