CN102243377A - High-definition four-dimensional (4D) raster picture - Google Patents
High-definition four-dimensional (4D) raster picture Download PDFInfo
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Abstract
The invention discloses the structure and design method of a high-definition 4D raster picture, wherein a novel picture showing device can be provided by combining rectangular gridding, laser typesetting and outputting, colour board developing and orthogonal grating technologies. Clear, lucid, large-size, and non-dazzling stereoscopic slide projector images and stereoscopic video images can be represented by the movement or relative movement of a horizontal raster. The stereoscopic images or stereoscopic advertisements showed by the stereoscopic slide projector have great stereoscopic sense, definition and viewing comfort; the stereoscopic video can show several hundreds of continuously moving stereoscopic images with contents and plots.
Description
Affiliated technical field:
The invention belongs to optics display technique field, relate to a kind of structure and method for designing of 4D grating picture.
Background technology:
So-called 4D has two kinds of meanings usually, and first three dimensions is added time shaft, and the said 4D grating of the present invention picture promptly is like this; It two is that the 3D video display are added omnibearing impressions such as the sense of hearing, sense of touch, sense of smell, i.e. 4D movie theatre.4D described herein is a kind of grating picture, has wherein comprised hundreds of width of cloth stereo-pictures, and every width of cloth stereo-picture is made up of tens of width of cloth anaglyphs.
Stereo-picture watches freedom, stereoscopic sensation to reach the good advantage of adaptability by force with it, is progressively popularized in industries such as photography, advertisement and decorations.Stereotome is usually by 3 D grating with stereo-picture is compound constitutes, and 3 D grating can be a slit, also can be column mirror grating, and stereographic map is the new images of being sampled again and being arranged in by a series of anaglyph.The characteristics of stereographic map are that details is very abundant, and amount of image information is big, generally export with modes such as digital laser developing and printing, colored description air brushing, printings.Two factor affecting the further developing and using of stereotome, one, stereoscopic depth can not be too big, otherwise the ghost image that scape image fission in front and back produces can't stand, image is clear inadequately, thorough, is unfavorable for showing the broad scene of great depth; Its two, moir appears easily, bring the sense of feeling dizzy, cause part beholder's incompatibility, hindered stereotome in the coml widespread use.Trace it to its cause, mainly be in the present various colored digital picture way of output, the fineness of pixel and separation property are not high, most pixels still are interpenetrative, the requirement that this and stereographic map pixels across are separated from each other is a contradiction, must cause the fission of image under the effect of grating, visualize is that tangible ghost image always appears in the hard contrast details of front and back scape in the stereographic map; In addition, the not high stereographic map mismatch of bringing of dimensional accuracy of output picture is usually brought the insufferable sense of feeling dizzy.
Patent 99211778.X discloses the basic structure of 4D grating picture, adopts the mode of air brushing or three look laser developing and printing can realize that nearly 10 amplitude grating stereo-pictures show.Patent 03100612.4 discloses a kind of improved 4D grating picture, can show that stereo-picture quantity is multiplied, yet picture output accuracy, grating beam splitting performance, grating mobile accuracy is required high, makes its cost high.Patent 02125356.0 discloses a kind of orthogonal grating of the 4D of making picture.The patent No. 200710079378 disclosed high-resolution grating three-dimensional pictures have solved stereoscopic sensation, the sharpness of stereotome well and have watched the comfort level problem.
Summary of the invention:
The present invention discloses a kind of structure and method for designing of high definition 4D grating picture, combine rectangle gridding, laser photo-typesetting output, the colour developing of look version and orthogonal grating technology, purpose is to provide a kind of brand-new picture presentation equipment, can show stereopticon or three-dimensional video-frequency that large format, high-resolution, nothing are felt dizzy.
Principle of the present invention is, RGB three colouring components of 4D composite diagram are reassembled into gray level image, utilize the rectangle grid to image screening, on laser photocomposing machine, export the film, form coloured image with the RGB look version alignment of back, with orthogonal grating combination, under the irradiation of backlight, moving or relatively moving and present clear thorough stereopticon image, stereoscopic video images by horizontal grating.Stereopticon and stereoscopic video images are referred to as the 4D picture, and the stereopticon image is to switch between the index width of cloth static disparity picture, and that emphasizes is stereoscopic sensation, the sharpness of image and watches comfort level; Stereoscopic video images is meant between hundreds of width of cloth continuous stereo images and circulates that what emphasize is dynamic sense, the plot and content of image.Implementation procedure comprises: 1, and the array mode of orthogonal grating, the laser film, RGB look version and backlight; 2, the synthetic and pixel optimization of 4D picture; 3, the 4D composite diagram is transformed into grayscale mode from the RGB pattern; 4, gray level image gridding method and parameter are selected; 5, the laser photo-typesetting output film with the combination of RGB look version alignment, is gone back original color 4D image.
Describe the process that realizes that high definition 4D image shows below in detail.
4D grating picture is combined by 3 D grating (1), change figure grating (2), the 4D image film (3), RGB look version (4) and backlight (5).3 D grating is vertical grating, can be slit or post mirror; Change figure grating is horizontal grating, and also slit or post mirror are three-dimensional, to become the two grid line of figure grating vertical mutually, forms orthogonal grating, and change figure grating can move up and down, and perhaps moves up and down with respect to spectators' eyes, thereby realizes image transformation.RGB look version is the pattern that a group red (6), green (7), blue (8) lines periodic arrangement form, and the wide w of each lines, the width of one group of RGB lines are 3 * w.Be close together behind the 4D image film, the RGB look version alignment, form the colored synthesising picture of 4D, RGB look version lines can be that level also can be vertical, depend on the needs, the width of RGB lines and the pitch of equidirectional grating are complementary, i.e. the just corresponding vitta of each pitch.
Synthetic and the pixel optimization of 4D picture.If a width of cloth 4D picture is made up of m width of cloth stereo-picture, every width of cloth stereo-picture is made up of n width of cloth anaglyph, and then the 4D picture comprises m*n width of cloth 2D image altogether, and each 4D pixel comprises m*n 2D RGB colour element, comprises m*n*3 2D include monochrome pixels.If m＜＜n, be fit to show stereopticon, be called I type 4D, typical data such as m=3, n=120; If m＞＞n, be fit to show three-dimensional video-frequency, be called II type 4D, typical data such as m=120, n=10.
The roughly thinking of I type 4D is, the RGB look version of laser film sheet and cross-wise lines realizes colored 4D lamp sheet output, each filtergram vegetarian refreshments is represented with grid x*y, n*3m the point that each 4D point is arranged with upper, middle and lower represented, two slit grating quadratures are placed and are formed pin hole, red grid (13), green grid (14) and the blue grid (15) of relevant position are formed a rgb colour element in every group of upper, middle and lower vitta of 3 pin hole correspondences.Pinhold density scope 10～50dpi.
The look version lines of I type 4D are horizontal directions, and width is w, and the pitch that becomes the figure grating is corresponding with it, is slightly less than w, and 3 D grating pitch is p, and 4D picture book size is W*H.Before 4D is synthetic, we need the Pixel Dimensions of all m*n width of cloth 2D images all is adjusted into (W/p) * (H/w), 4D is synthetic to be finished in two steps, 1. anaglyph is three-dimensional synthetic, promptly in order the row of n width of cloth anaglyph are staggered to a width of cloth stereo-picture, Pixel Dimensions becomes (W/p*n) * (H/w); 2. the stereo-picture animation is synthetic, promptly in order the line interlacing of m width of cloth stereo-picture is arranged in a width of cloth 4D image, and Pixel Dimensions becomes (W/p*n) * (H/w*m).Three-dimensional detailed method synthetic and that animation is synthetic can be with reference to documents and materials such as patent 99211778.X, patents 03100612.4.A kind of grating combination of recommendation is that three-dimensional, change figure grating all adopts slit grating, the wide w/m that is not more than of the seam of change figure grating.
The roughly thinking of II type 4D is, the RGB look version of laser film sheet and vertical lines realizes colored 4D lamp sheet output, each filtergram vegetarian refreshments is represented with grid x*y, 3n*m the point that each 4D point is arranged with the left, center, right represented, column mirror grating shows three-dimensional, realize becoming picture with relatively moving of slit grating, 3 grids in left, center, right show a rgb pixel, mesh-density scope 10～50dpi.Test shows, a color batten in the corresponding coloured image of each column mirror grating bar press the arrangement of RGB sequence alternate, and the scope outside optimum distance moves watches, because of the cross-color that grating and look pressing bar mismatch cause can be ignored.
The look version lines of II type 4D are vertical directions, and width is w, and the pitch of 3 D grating is corresponding with it, is slightly less than w, and change figure grating pitch is p, and 4D picture book size is W*H.Before 4D is synthetic, we need the Pixel Dimensions of all m*n width of cloth 2D images all is adjusted into (W/w) * (H/p), 4D is synthetic to be finished in two steps, 1. anaglyph is three-dimensional synthetic, promptly in order the row of n width of cloth anaglyph are staggered to a width of cloth stereo-picture, Pixel Dimensions becomes (W/w*n) * (H/p); 2. the stereo-picture animation is synthetic, promptly in order the line interlacing of m width of cloth stereo-picture is arranged in a width of cloth 4D image, and Pixel Dimensions becomes (W/w*n) * (H/p*m).A kind of grating combination of recommendation is that 3 D grating adopts the post mirror, becomes the figure grating and adopts slit, the wide 0.08mm that is about of the seam of change figure grating.
The 4D composite diagram becomes grayscale mode from the RGB mode switch.I type 4D is different with the conversion regime of II type 4D, is illustrated respectively below.
R, G, the B passage of I type 4D composite diagram are copied in the gray level image as the achromatic sheet layer respectively, scheme layer called after R, G, B respectively for three, the 3m*k that keeps figure layer R is capable to 3m*k+m-1, the 3m*k+m that keeps figure layer G is capable to 3m*k+2m-1, the 3m*k+2m that keeps figure layer B is capable to 3m*k+3m-1, k=0,1,2,3 ..., other zone of deleting 3 figure layers, be merged together then, can guarantee corresponding vitta of the capable pixel of every m in the gray scale stereo-picture.
R, G, the B passage of II type 4D composite diagram are copied in the gray level image as the achromatic sheet layer respectively, scheme layer called after R, G, B respectively for three, the 3n*k that keeps figure layer R is listed as to 3n*k+n-1, the 3n*k+n that keeps figure layer G is listed as to 3n*k+2n-1, the 3n*k+2n that keeps figure layer B is to 3n*k+3n-1 row, k=0,1,2,3 ..., other zone of deleting 3 figure layers, be merged together then, can guarantee corresponding vitta of every n row pixel in the gray scale stereo-picture.
Gray level image gridding method and parameter are selected.Each pixel of gray scale stereo-picture rectangle grid representation of x*y, each point is represented an exposure station of laser photo-typesetting sheet on the grid, be divided into (11) two kinds of bright spot (12) and dim spots, the bright spot transmitted light, dim spot shuts out the light, and the quantity of the bright spot in the grid or area ratio are represented corresponding color value.
I type 4D adopts vertical rectangle grid, x＜＜y, the long limit addition of m grid equates with look version line thickness, is w, so the y value is by m and w decision.
Suppose m=3, w=0.6mm, phototypesetting precision D=2540dpi, y=20 then, preferred 3 grids are 1 * 20,2 * 20,3 * 20, wideer grid brings the reduction of transverse precision, and then influences the sharpness of stereo-picture.The 3 D grating that with pitch is 1.2mm is an example, but grizzly bar 120 grids of horizontally-arranged at most down, and tolerable 120 width of cloth anaglyphs are three-dimensional synthetic, have fabulous stereoacuity and watch comfort level.
Consider imperfectization of processes such as laser photocomposing machine exposure, development, a spot of bright spot should preferentially be gathered into bulks such as square, circle, in order to avoid the dim spot that is expanded " floods ".Four kinds of typical bright spots of grid are shaped as rhombus, rectangle, horizontal line, vertical line, and in the distribution of most grids, bright spot does not have these typical shape, even so, should be trend with the designated shape also during gridding.Gridding method of the present invention is followed following principle: 1. be the center with the grid element center, bright spot is assembled distribution; 2. from the center, bright spot, stops when arriving net boundary toward growth all around as seed; 3. to be priority laterally, the bright spot of adjacent mesh is linked at together as early as possible, reduces the number percent of dot gain.
According to the gridding rule, can provide a kind of colouring algorithm to realize the quick gridding of pixel.Set up a two-dimensional array G[x earlier] [y], give array assignment by the sequencing that bright spot occurs, for example first bright spot appears at the centre of grid, with the array element assignment 1 in centre position; Second bright spot appears at the left side of first bright spot, with the array element assignment 2 of this position; The 3rd bright spot appears at the downside of first bright spot, with the array element assignment 3 of this position; If K bright spot appears at the capable i row of j, then G[i] [j]=K.Gray-scale value is the pixel of C, 0≤C≤255, if total C*x*y/255 bright spot after the gridding is G[i] [j]≤C*x*y/255, and then this is a bright spot, otherwise is dim spot, this process is compiled into program relief computing machine and handles the realization gridding automatically.
Following table is depicted as example, sets up grid data:
Set up a nested grid form, promptly set up an array G[x] [y], with the stereo-picture gridding, obviously the grid of x=1 is optimum, forms 2 value images of TIF form, increases the chromatography mark, with laser photocomposing machine output film sheet.
II type 4D adopts horizontal rectangle grid, x＞＞y, the long limit addition of n grid equates with look version line thickness, is w, so the y value is by n and w decision.
Suppose n=6, w=0.6mm, phototypesetting precision D=2540dpi, x=10 then, preferred 3 grids are 10 * 1,10 * 2,10 * 3, wideer grid brings the reduction of vertical precision, and then influences the continuity of video image.The change figure grating that with pitch is 1.2mm is example, when y=1, but grizzly bar 120 grids of vertical setting of types at most down, tolerable 120 frame stereo-pictures have fabulous continuity and sharpness.Gridding method and I type 4D are roughly the same, and still, II type 4D very easily net occurs hitting with 3 D grating, and image is flickering or tangible reticulate pattern occurs.
We need set up the networking form of formatting for the x*y grid, and the bright spot starting point of each form correspondence no longer is the center of grid, stagger mutually, and bright spot is assembled and distributed, from the off, as seed toward around growth, stop when arriving net boundary.For the 4D synthesising picture of grayscale mode is set a rectangle point set, this point set can be a RGB 4D point, comprise 3n*m the pixel that arrange the left, center, right, it also can be a monochromatic 4D point, comprising n*m pixel, can also be littler single color point, comprises n*j pixel, j＜m is exactly reasonable selection such as 20＜j＜50.Select a form at random, all pixels in the rectangle point set are carried out gridding to be handled, can guarantee the aggregation preferably of point set scope inner laser point, be convenient to high precision output, the bright spot center of stochastic distribution brightness flicker or reticulate pattern can not occur under the grating effect generally.Grid with 10 * 1 is that example is set up one group of 10 gridding form:
Set the rectangle point set and comprise 6*40 pixel, select a form numbering at random, with corresponding data all pixels in the point set are carried out gridding and handle, a point set can form the laser spots of 60*40 aggregation.The each processing before the point set need be selected the form numbering at random one time.
Owing to can hold a large amount of 2D images, we can also form a kind of unidirectional III type 4D picture, promptly only adopt grating with great visual angle, are 10 line gratings of 3.8mm as thickness, can hold 254 width of cloth 2D images.
Suppose that a width of cloth 4D picture is made up of 25 width of cloth stereo-pictures, every width of cloth stereo-picture is made up of 10 width of cloth anaglyphs, we with 10 width of cloth anaglyphs as one group, totally 25 groups are sorted successively, then by the synthetic 4D image of three-dimensional synthetic method, and convert gray-scale map to, with 1*60 Mesh Processing gray-scale map, three RGB grids (10) that upper, middle and lower is arranged are formed a full color pixel (9).
Two-value TIF image after the gridding is exported the film by laser photo-typesetting, with the combination of RGB look version alignment, goes back original color 4D image.Though such film sheet is a black and white, but comprised 4D and schemed all colouring informations, film setter has site precision and two important indicators of effective picture size, the phototypesetting precision of current main-stream machine all is not less than 2400dpi, the useful area of large format film setter has surpassed 2000mm*1200mm, satisfies the requirement of output 4D image fully.The look version is staggered and is constituted by R, G, B three colo(u)r streak bars, as long as it is look version alignment is also fixing in the back of film sheet, each monochromatic grid and corresponding color lump just exactly coupling cooperate orthogonal grating together, under the illumination of lamp box, show bright-coloured thorough stereo-picture.
4D picture disclosed by the invention, moving or relatively moving and present clear thorough stereopticon image, stereoscopic video images by horizontal grating.Stereo-picture or tridimensional advertisement that stereopticon is showed have fabulous stereoscopic sensation, sharpness and watch comfort level; Three-dimensional video-frequency can be showed the stereopsis of hundreds of width of cloth continuously actives, meaningful plot.
Description of drawings:
Fig. 1 is a 4D raster pattern chip architecture synoptic diagram, and a is a front view, and b is a side view, is combined by 3 D grating (1), change figure grating (2), the 4D image film (3), RGB look version (4) and backlight (5).Becoming figure grating (3) can move up and down, and perhaps moves up and down with respect to spectators' eyes, realizes the switching between the stereo-picture.
Fig. 2 is the synoptic diagram of RGB look version, is arranged by red lines (6), green lines (7) and blue lines (8) cycle staggering to constitute, and the wide w of each lines, the width of one group of RGB lines are 3 * w, and register mark is distributed on four angles of look version.RGB look version lines can be that level also can be vertical, depend on the needs, and the width of RGB lines and the pitch of equidirectional grating are complementary, i.e. the just corresponding lines of each pitch.
Fig. 3 is a gray scale stereo-picture grid synoptic diagram.Frame of broken lines is represented a colour element (9), and each colour element contains R, G, three monochromatic grids of B (10), is vertical arrangement, and III type 4D picture adopts this dot structure.
Fig. 4 is a gray-scale pixels gridding synoptic diagram, and grid is made of dim spot (11) and bright spot (12), and sizing grid is 8*32.Fig. 4 a represents that a color value is 137 grid, and bright spot is gathered into typical rhombus; Fig. 4 b represents that a color value is 142 grid, and bright spot is gathered into typical rectangle; Fig. 4 c represents that a color value is 77 grid, and bright spot is assembled in the preferential mode of horizontal line; Fig. 4 d represents that a color value is 111 grid, and bright spot is assembled in the preferential mode of vertical line.Gridding method of the present invention is followed bright spot with the preferential principle of assembling of horizontal line, shown in Fig. 4 c.
Fig. 5 is an I type 4D picture gray-scale pixels structural representation, and colour element is made of red grid (13), green grid (14) and the blue grid (15) of the individual pixel of longitudinal separation (m-1), and look version lines are horizontal directions, and width is w.R1, R2, the red lines 3 capable grid pixels of the corresponding look version of R3, each capable parallax sequence image pixel order by same stereo-picture is staggered and forms, and pixel wide is exactly the width of grid, may diminish to a laser-light spot size.The capable pixel grid of corresponding m on each look version lines, this figure is example with m=3, can conversion 3 width of cloth stereo-pictures.
Fig. 6 is an II type 4D picture gray-scale pixels structural representation, and colour element is made of red grid (13), green grid (14) and the blue grid (15) of the individual pixel in lateral separation (n-1), and look version lines are vertical directions, and width is w.R1, R2, R3 are 3 row grid pixels of the red lines of corresponding look version, and pixels tall is exactly the height of grid, may diminish to a laser-light spot size.Corresponding n row pixel grid on each look version lines in order to draw conveniently, simply is example with n=3, and every width of cloth stereo-picture is made of 3 width of cloth parallax sequence chart.In fact, 5＜n＜20th, proper setting.
Embodiment:
Make I type high definition 4D picture.
Prepare a breadth 1200*900mm, pitch is 1.2mm, and grid line stitches the slit grating of wide 0.08mm at vertical direction, and mount is at same breadth, the transparent acrylic board front surface of thickness 4mm; Prepare a breadth 1200*900mm, pitch is 0.6mm, and grid line stitches the slit grating of wide 0.2mm in the horizontal direction, and mount is in the acrylic board rear surface.Prepare the RGB look version of a straight hard, lines are horizontal direction, and the wide 0.6mm of lines, the width of one group of RGB lines are 1.8mm.
With camera follow shot stereo-picture on slide rail, clap 120 width of cloth for every group, totally 3 groups of different pictures.With consistent the cutting of 120*3 width of cloth image, non-geometric ratio compression is adjusted into the 1000*1500 pixel, with all images 4D synthetic after, pixel size becomes the 120000*4500 pixel, image is the RGB pattern, and R, G, B passage are copied in the gray level image as the achromatic sheet layer respectively, and the 9k that keeps figure layer R is capable to 9k+2, the 9k+3 that keeps figure layer G is capable to 9k+5, the 9k+6 that keeps figure layer B is capable to 9k+8, k=0,1,2,3 ..., other zone of deleting 3 figure layers, be merged together then, can guarantee corresponding vitta of per 3 row pixels in the gray scale stereo-picture.With the Mesh Processing 4D gray level image of 1*20, form the two-value TIF image of 120000*90000 pixel, image resolution ratio is 2540dpi, breadth 1200*900mm increases the chromatography mark, is the laser photocomposing machine output film sheet of 2540dpi with output accuracy.Be adhesively fixed behind the RGB look version alignment, can integral body move up and down, with the interval that the acrylic original screen panel of front keeps 1mm, the illumination of lamp box can show bright-coloured thorough stereopticon image down in the back.
Make II type high definition 4D picture.
Prepare a breadth 1200*900mm, pitch is 0.6mm, and grid line is at the column mirror grating of vertical direction; Prepare a breadth 1200*900mm, pitch is 1.2mm, and grid line stitches the slit grating of wide 0.08mm in the horizontal direction, and mount is in the column mirror grating rear surface.Prepare the RGB look version of a straight hard, lines are vertical direction, and the wide 0.6mm of lines, the width of one group of RGB lines are 1.8mm, the thickness deficiency of column mirror grating, and focusing surface is surveyed the 1mm place outside the rear surface.
One group of totally 6 camera with horizontal parallax is set in three-dimensional animation software, takes the stereo-picture of a moving scene synchronously, every group 6 width of cloth taken 120 groups of stereoscopic picture planes altogether.
With consistent the cutting of 6*120 width of cloth image, non-geometric ratio compression is adjusted into the 2000*750 pixel, with all images 4D synthetic after, pixel size becomes the 12000*90000 pixel, image is the RGB pattern, and R, G, B passage are copied in the gray level image as the achromatic sheet layer respectively, and the 18k that keeps figure layer R is listed as to 18k+5, the 18k+6 that keeps figure layer G is listed as to 18k+11, the 18k+12 that keeps figure layer B is to 18k+17 row, k=0,1,2,3 ..., other zone of deleting 3 figure layers, be merged together then, can guarantee corresponding vitta of per 6 row pixels in the gray scale stereo-picture.Mesh Processing 4D gray level image with 10*1: with the 6*40 pixel is a rectangle point set, selects a form numbering at random, with corresponding data all pixels in the point set is carried out gridding and handles, and forms the two-value TIF image of 120000*90000 pixel.Image resolution ratio is 2540dpi, and breadth 1200*900mm increases the chromatography mark, is the laser photocomposing machine output film sheet of 2540dpi with output accuracy.Be adhesively fixed behind the RGB look version alignment, can integral body move up and down, with the interval that the original screen panel of front keeps 1mm, the illumination of lamp box can show bright-coloured thorough stereoscopic video images down in the back.
Claims (8)
1. high definition 4D grating picture, combine by 3 D grating, change figure grating, synthesising picture and backlight, grating can be slit or post mirror, it is characterized in that, 3 D grating, to become the two grid line of figure grating vertical mutually, forms orthogonal grating, and change figure grating can move up and down, perhaps move up and down with respect to spectators' eyes, synthesising picture is combined to form coloured image by 4D image film sheet and RGB look version.
2. picture as claimed in claim 1, its feature also is, RGB look version is one group of pattern that red, green, blue lines periodic arrangement forms, the wide w of each lines, the width of one group of RGB lines are 3 * w, are close together behind 4D image film sheet, the RGB look version alignment, form the colored synthesising picture of 4D, RGB look version lines can be that level also can be vertical, and the width of RGB lines and the pitch of equidirectional grating are complementary, i.e. the just corresponding vitta of each pitch.
3. picture as claimed in claim 2, its feature also is, RGB three colouring components of synthesising picture are reassembled into gray level image, sets the size and the bright spot fill order of rectangle grid, utilize grid that gray level image is changed into bianry image, on laser photocomposing machine, export the film.
4. picture as claimed in claim 3, its feature also is, adopt vertical rectangle grid, x＜＜y, the long limit addition of m grid equates with look version line thickness, be w, the RGB look version alignment of laser film sheet and cross-wise lines realizes that colored 4D shows, the red grid of relevant position, green grid and blue grid are formed a rgb colour element in the three colo(u)r streak bars of upper, middle and lower.
5. picture as claimed in claim 3, its feature also is, adopt horizontal rectangle grid, x＞＞y, the long limit addition of n grid equates with look version line thickness, be w, laser film sheet realizes that with the RGB look version alignment of vertical lines colored 4D shows, the red grid of relevant position, green grid and blue grid are formed a rgb colour element in the three colo(u)r streak bars of left, center, right.
6. as claim 4 or 5 described pictures, its feature also is, the gray-scale value of the quantity of bright spot or area ratio represent pixel in the grid, bright spot is that distribution is assembled at the center with the grid element center, and from central point, bright spot is as the past growth all around of seed, stop when arriving net boundary, with the grid short side direction is priority, and the bright spot of adjacent mesh is linked at together as early as possible, the number percent that dim spot enlarges when reducing to expose.
7. picture as claimed in claim 5, its feature also is, for the x*y grid is set up the networking form of formatting, the bright spot starting point of each form correspondence no longer is the center of grid, stagger mutually, bright spot is assembled distribution, from the off,, stop when arriving net boundary toward growth all around as seed, setting n*j pixel in gray level image is a rectangle point set, j＜m selects a form at random, all pixels in the rectangle point set is carried out gridding handle, can guarantee the aggregation preferably of point set scope inner laser point, be convenient to high precision output.
8. as claim 6 or 7 described pictures, its feature also is, realize the quick gridding of pixel with a kind of colouring algorithm, set up a two-dimensional array G[x earlier] [y], give array assignment by the sequencing that bright spot occurs, K bright spot appears at the capable i row of j, G[i then] [j]=K, gray-scale value is the pixel of C, 0≤C≤255, total C*x*y/255 bright spot after the gridding, if G[i] [j]≤C*x*y/255, then this is a bright spot, otherwise is dim spot, and this process is handled by Automatic Program and realized gridding.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103246074A (en) * | 2013-05-22 | 2013-08-14 | 天津中天证照印刷有限公司 | Synthesis method for dynamic three-dimensional pictures |
| CN103676456A (en) * | 2012-09-10 | 2014-03-26 | 邓兴峰 | High-definition black-and-white stereophoto |
| CN103676163A (en) * | 2012-09-12 | 2014-03-26 | 薄淑英 | High-definition optical grating three-dimensional image |
| CN104122670A (en) * | 2013-04-25 | 2014-10-29 | 邓兴峰 | Rectangular spherical grating 4D picture |
| CN113379651A (en) * | 2021-08-11 | 2021-09-10 | 深圳市先地图像科技有限公司 | Image processing method and system in laser imaging process and related equipment |
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