TW200813394A - Method with the three dimensional outline measuring and the system of reconstruction which has a sub-pixel positing of coloring optical gratings and single monitor with main and sub-frame switching - Google Patents

Abstract

The invention is a kind of method with the three dimensional outline measuring and the system of reconstruction which has the sub-pixel positing of coloring optical gratings and single monitor with main and sub-frame switching. The method includes pre-step; projected step; video acquired step; video fine tuning step; video processing step; and reconstructive step. The system includes a projected apparatus which emits the beam from the optical grating to DUT; an image from the optical grating on DUT and has the same contrast on the plural grating lines; a CPU can reconstruct 3-D profile of DUT using optical grating imaging with fine tuning main and sub-frames. So achieved the optical grating has the same contrast to be easy to distinguish, the monitor has main- and sub-frames can be switched, and adjusting the optical grating with modified module.

Description

200813394 ^ IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a three-dimensional contour measurement method and reconstruction system using color raster sub-pixel positioning and single-screen switching of a single screen, which has the same grating The contrast is easier to distinguish, the display has a switchable picture and the adjustment module can adjust the grating. [Prior technology] |_ • With the improvement of industrial technology and the diversification of products, the key to leading the market and expanding the market is to shorten the manufacturing process time, which has become one of the most important topics in product development. The related reverse engineering technology is getting more and more attention. Product inspection, industrial manufacturing, product design, object shape scanning, and multimedia animation production all require a fast and accurate measurement technique. The most important thing to achieve reverse engineering is the measurement capability. Traditional automated inspection techniques can be divided into two categories, one for contact measurement and the other for non-contact measurement. Non-contact measurement with light as the measurement tool is most widely used. Generally, the gray scale grating is projected onto a workpiece to be measured for measurement; however, the workpiece to be tested is often inconspicuous due to the background light disturbing the workpiece to be tested, so that the stripe misjudgment occurs. If the surface of the workpiece to be tested is too smooth, the +-part will be strongly reflective and the other stripes will be unclear or broken. If the workpiece to be tested has a sudden steep rise and fall, the curve is easily caused by shadows and is mistakenly judged as stripes, resulting in the intersection of stripes 6 200813394 •. In addition, the traditional automated detection technology still has the following disadvantages: [1] Monochrome gratings are not easy to distinguish. Referring to the seventh, the conventional method uses a projected monochrome stripe to scan the workpiece to be tested. If the surface of the workpiece to be tested is clear, combined with the high-speed, high-resolution photographic device to capture the phase-shifting scanning overlay method of the grating image, the workpiece to be tested can be completely reconstructed. The three-dimensional model, but as shown in the eleventh and twelfth figures, when the grating is projected on the surface of the workpiece to be tested that is not flat, the grating stripe will be distorted, if one, part is covered by the shadow of the object It is difficult to judge which stripe should correspond to that stripe, which will affect the reconstruction of the image. [2] The display has no switchable face. The traditional optical measurement method, the raster image of the projection device and the raster image captured by the photographing device are displayed by two displays, and cannot be combined and displayed on a single screen. The number of devices is large, the control is complicated, and the viewing is not easy. In addition, the repeated viewing of the image and the adjustment of the focal length of the photographic device must be performed separately, and it is not convenient to directly adjust the photographic device from the display while viewing the image. [3] The raster cannot be adjusted. • Conventional gratings are mostly fixed designs, and their density and contrast cannot be adjusted. If the measurement micro-components are easy to lose accuracy. Therefore, it is necessary to develop new technologies to solve the above shortcomings. SUMMARY OF THE INVENTION The main object of the present invention is to provide a three-dimensional display system that uses a color raster 200813394 pixel clamp and a single-screen screen switching, and the design is suspected to have the second purpose of providing a use. The three-dimensional contour amount of the color-growth element and the screen of the early screen are switched to the reconstruction system, and the display has a switchable mother-in-law face-up. Another object of the present invention is to provide a three-deciding method and a reconstruction system using color raster sub-pixel positioning and single-screen switching of a single screen, which has an adjustment module that can be adjusted. π The present invention provides a three-dimensional contour measuring method and a reconstruction system using a color raster sub-pixel positioning fish screen (4), and the measuring method portion thereof comprises: a preliminary step; a projection step;

3. Capture image steps; 4. Image fine-tuning steps; 5. Image processing steps; and 6. Reconstruction steps. The portion of the reconstruction system includes: a projection device for emitting a grating light toward a workpiece to be tested, the grating light having a plurality of grid lines having the same contrast, the grating light forming a raster image on the workpiece to be tested, It includes a plurality of stripes of different colors; Ν 200813394 a photographic device is used to extract the raster image from the workpiece to be tested; a central processing unit, which at least includes:

i. A central processing unit that performs image analysis on the raster image, eliminates noise and stripe thinning, and uses parabolic curve distribution analysis to obtain a more accurate minimum/highest grayscale distribution drop point. Each pixel of the stripe image after thinning is stripped, and then the parabola curve distribution is used to fit the curve of the parabola curve, and the maximum bending degree of the stripe is obtained. The phase shifting technique and phase reconstruction are used to obtain the three-dimensional shape of the workpiece to be tested. The display device is electrically connected to the central processing unit, and the display has at least two switching modes: Π] simultaneously displaying a first display portion and a second display portion: displaying the projection device to be projected The grating/the raster image captured by the photographing device; the first display portion is at least capable of directly adjusting the focal length, the aperture and the depth of field of the photographing device; [2] displaying the raster image/three-dimensional contour on the full screen of the first display portion. The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments of the invention. The following is a detailed description of the present invention in the following embodiments with reference to the drawings. [Embodiment] Referring to the mth embodiment of the present invention, "the use of color light 200813394 gate sub-pixel position and single screen screen switching between the three males The contour summer measuring method and the reconstruction system 』the measuring method part thereof comprises the following steps: 1. preliminary step 11: preparing a projection device 20, a photographing device 30 and a central processing unit 40;

2. Projection step 12: starting the projection device 2, the projection device 20 illuminates a grating light 21 toward a workpiece 90 to be tested, which has a plurality of thumb lines having the same contrast, and the light ray 21 is formed on the workpiece 90 to be tested. a raster image 91, the raster image 91 is composed of a plurality of stripes 901 having the same contrast (see the third and fourth figures); 2. The image capture step 13: the camera is activated. The device 30 is mounted on the workpiece 90 to be tested. Taking the raster image 91; 4. Image fine-tuning step 14: The central processing unit 4 is provided with a display 41, and the display 41 can simultaneously display a first display portion 41U or a second display portion 412 ( That is, the mother's face), the second page is not f 412 (ie, the mother's face) displays the light to be projected by the projection device, and the member 411 (ie, the face) displays the history of the captured raster image. A display 411 (ie, a sub-surface) displays the captured light image to the night, which can be used to adjust the focal length, aperture, and depth of field of the photographing device. The temple is displayed on the first display portion 411. The clear "" is like the 91st, the first display portion 411 can be taken from the Stem shown is closed, the display is switched to the second display unit 412, the display screen 41 is a full raster image 91 firefly. ~ Image processing step 15: The central processing unit 4 receives the raster image 91 from the 200813394 camera device 30; performs image analysis on the raster image 91, eliminates unnecessary background noise, and then stripes the raster image 91. Thinning operation; 6. Reconstruction step 16: The three-dimensional contour of the workpiece 90 to be tested is obtained by using the phase shift technique and phase reconstruction for each pixel in the raster image 91 after the thinning of the stripe. Thus, the use of color light peach sub-pixel positioning and single for the present invention

The three-dimensional round-robin measurement method and reconstruction system for switching the screen of the child's face. The actual operation method of the present invention is that the central processing unit 42 of the central processing unit 40 pre-produces the grating to be projected (ie, the grating light 21), each of the gratings; [the album line (as shown in the fifth figure) The contrast ratio of a stripe is the same, the grating density is preferably 5 strips/1 mm, and the grating is best in color (the color reference image is shown in Figure C of Annex I), and the color combination can be at least R, G, B. , 1/2R, 1/2G, 1/2B, 1/3R, 1/3G, 1/3B, 1/4R, 1/4G, 1/4B, (1/2R+1/2G), (1/ 2R+1/2B), (1/2G + 1/2B), (1/3R+1/3G), (1/3R+1/3B), (1/3G+1/3B)· · · · For the same variation, R, G, and B are the three primary colors, and the color grating stripes can be generated as follows: I = [LPMxl.6 3 LPMx3] if /minx3<255 ? Then R = Random[〇, x3] 5 Re[〇 , 255] else R = Random[〇y 255] 5 7?g[〇, 255] G = 3x1 -R-Random[〇, 255] , Ge[〇, 255] B = 3xl-RG ? Bg[〇5 255] 11 200813394 where I is the total summed brightness value of each grating, LPM (line pair/mm) is the number of gratings, and 11, 0, and 6 are the three primary colors of color. Limiting the value of 1 to [LPMx 1.6, LPMx3] prevents the G and B values from being saturated, which affects the uneven brightness of the grating. The R value is generated by random numbers. If the overall total luminance value (I value) of the grating is too low, the range of the R value is limited to [〇, L χ 3], so that the three values of R, G, and B can be prevented from being saturated. , to ensure that R, G, and Β can fall between [0, 255]. The G value is also generated by random numbers, and the range is limited to [0, · 255].

Ι· The color grating stripe can also be generated in the same way as the highest color brightness of each stripe of the projected color raster. The highest color brightness of each stripe must be equal, and the highest color brightness is defined as:

Bn = Α/αχ(/?, G9 B) 9 Bn s |〇?255] where, G, B are the three primary colors. To make each raster's highest color and brightness equal, you must equalize the heart value of each raster. The color grating stripe is randomly selected by a value, and the maximum value of the limit and value is as follows: R = Random^), 255\ if R > Bn, R = Bn randomly select a G value, and limit G The maximum value of the value is as follows: G = Random[〇,255] if G> Bn , G = Bn Take the maximum value of i?, G, if this value is, then the value of 10,000 can be 12 200813394 疋 (k machine The value chosen, if and (the maximum and maximum value of ^ is not the same, then the value ^ is βη if(Max(R, G) = Bn) 5 B = Random[0, Bn] • else B = Bn In the second figure, the pre-made grating of the central processing unit 42 is output to the projection oscillator 20 (for example, a digital light source processor, which is Digital Light Processing (DLP) in English), and is projected to the projection device 20 through the projection device 20 A raster image 91 is formed on the workpiece 9 to be tested. The raster image 9〇 is captured by the photographing device 3 and transmitted back to the central processing unit 4〇, and displayed on the display 41 of the central processing unit 4〇. The captured image 91 is displayed by the first display portion 411 of the display 41, and can be used to adjust the imaging device 3 to the raster image 91. Presented on the first display portion 411, the first display portion 411 is closed from the display 41, and switched to the second display portion 412 to display the raster image 91 on the full screen of the display 41. The central processor 42 is used to rasterize The stripe 901 of different numbers on the image 91 is combined with different RGB colors to correctly read the stripe 9〇1 position of the color raster image 91 and reconstruct the correct three-dimensional contour of the workpiece 90 to be tested. In the six figures, for example, when the grating light forms a raster image on the workpiece to be tested, assuming a reference plane, the height of the surface of the workpiece to be tested relative to the reference plane can be expressed as: 13 200813394 (1) h(x, y) 〇•shirt + tan / tan θη) where Ρ〇 is the distance between the grating rays projected to the reference plane, 0 〇 is the projection angle ' θ η is the angle between the D point captured by the camera and the reference plane' 0 cd is D point Relative to the phase value of point c, assuming 0 η = 9Ό° 'the surface height can be expressed as ··· K^y)= P0 -tan^( 2π

(2) Since both Ρ〇 and θ 〇 are 疋, and the reference plane can be assumed to be at any position, the surface profile of the workpiece to be tested can be determined by the phase distribution value of the stripe projected onto the workpiece to be tested. · The relationship between the light intensity and the phase shift of a digital grating with a sinusoidal intensity distribution can be expressed as: I(x,y) = / (x^y) + Γ(χ9γ)0Ο3[φ(χ9γ) + S] ( 3) Since there are three unknowns of r(x, y) (average intensity), Ι, (χ, yKintensity modulation) and 5 (phase m〇duiati〇n) in the above formula, at least three different equations are required. It can be solved that four raster images can be captured by the photographic device, and the phase shift angle is 9 degrees, and the relationship between the phase value and the light intensity can be obtained as follows: coffee, /2)/(/ι—/3)) (4) The phase value of each pixel point can be obtained by using the above formula; and the three-dimensional contour of the workpiece to be tested is obtained by the phase shift technique and the phase reconstruction. In addition, the present invention can measure the surface height of the workpiece to be tested 200813394 by using a line projection method; and calculate the workpiece to be tested by using the amount of displacement of the grating stripe on the surface of the workpiece 9 to be tested. The height of the crucible (as shown in the eighth figure), the main way is as follows; It is known that the two ends of the predetermined stripe after the thinning of the workpiece to be tested 90, #私7小, the slope of the milk is: Χ2 ~-χι · Ι · To calculate the height j of each point on the line segment, you must make a vertical line from any point on the line segment. The line segment is the height of the object you are looking for, and the slope of the line ρ is ·· # m2 = —?- Using the simultaneous equations of the straight line d and the line /^, the intersection of the two linear equations can be found;): \y-m2x-\-c2 ' ml -m2 < C9 — Ci y3=mr —~L- + qlm “m2 Calculate the distance between the household and 0 points to obtain the height J of the object ^ ^ Ρ〇= λ[(χ3-x)2 +(y3 -yf on digital image processing analysis If the pixel gray level, color, and information of adjacent pixels of the workpiece to be tested are taken into consideration, the detection accuracy can be improved to the secondary image. 15 200813394 Therefore, in the reconstruction step 16, the detection accuracy can be improved to the sub-pixel range by using the parabolic curve distribution analysis method. The knife is as shown in the ninth figure, which is a predetermined stripe of birch in the original digital image. Schematic diagram of the gray scale distribution of the cut surface, the left side of the figure shows the stripe of the original digital image, the right side of the figure shows the cross section of the stripe of the original digital image; as shown in the tenth figure, the schematic diagram of the parabolic curve distribution analysis, Assume a parabolic equation and

The lowest or highest gray-scale distribution of a line segment in the original digital image; this parabolic equation has three unknowns, which requires three sets of equations to solve, so take 々, and its front ^ two ^ "edge, do; 63⁄4汾) Do a parabolic curve distribution analysis to obtain a more accurate minimum or maximum gray-scale distribution. The relevant mathematical formula is shown as 4: The function of marrying the gray-scale distribution of a line segment in the original digital image is parabolic equation. : g = a(x- c)2 + b Take & and its two points before and after; do the parabolic curve distribution analysis: a{xQ-cf +b = g0 < a{xx-c)2 •hb = gl a(X2 ~C)2+^ = g2 Find the three unknowns of this parabolic equation 3C is ·· xi(g〇-g2hxHs^^) 2k (^2 - )+ ^ - g2 )+ X2 (gl - g〇)] 16 200813394 一 - So - gj (x0-cf

The vertices of the parabola are located at W, that is, at the position of the gray level distribution of a line segment in the image approached by the method using the sub-pixel.

The grating light 21 (such as the fifth figure) irradiated by the projection device 2 of the present invention toward the workpiece 90 to be tested is colored (as shown in the attached figure c), so the raster image 91 formed by the workpiece 90 to be tested (such as The third figure) is also colored (as shown in Figure A of Annex A), and the contrast of each stripe 9〇1 is the same, even if the raster image 91 is partially covered by the shadow on the surface of the workpiece 9 to be tested (eg In the fourth figure, the corresponding color map is the attachment-B map. It is still possible to clearly distinguish the intersection of each stripe and indeed reconstruct the three-dimensional contour of the object to be tested. The three-dimensional measurement method of the present invention can be widely applied to at least m optics: measuring product shape and curvature. [2] Optical communication : class: measuring the fiber end face. [3] Semiconductors: Measuring the surface profile of wafers. [4] Electronics: Measurement. Solder paste thickness. And surface [5] Mechanical class. Measuring the appearance of the mechanical body Roughness. Referring to the second figure 'reconstruction system portion of the present invention, the package 17 200813394 is only a shadow device 20 for emitting a light beam 21 toward a workpiece 9 to be tested; the grating light 21 has a plurality of grid lines, the contrast The grating light 21 forms a raster image 91 on the workpiece (10) to be tested, and includes a stripe 9〇1 having the same plurality of contrasts; a photographing device 30 for picking up from the workpiece 9 to be tested. The central processing unit 40 includes at least one display 41 and a central processing unit 42. The display unit 41 displays a first display portion 411 and a second display portion 412 simultaneously. Displaying the captured raster image by the first display portion 411 (ie, the sub-plane), and adjusting the focal length, aperture, depth of field, and the like of the imaging device 3q to the imaging device 30. When the raster image 91 (also referred to as the stripe 9〇1) is displayed relatively clearly on the first display portion 411 (ie, the sub-surface); the first display portion 411 is turned off, and the second display portion 412 is on the display. Display the raster image 91 on i_ in full screen (also It is said that the stripe 901); the central processing unit 42 can perform image and image analysis on the raster image 91, eliminate unnecessary background noise, and perform stripe thinning operation on the raster image 91, and thinning the stripe Each pixel in the subsequent raster image 91 is matched with the phase shift technique and phase reconstruction to obtain a three-dimensional contour of the workpiece 90 to be tested and displayed on the display. Thus, the present invention is a three-cone contour reconstruction system using color raster sub-pixel positioning and single screen switching of a single screen. Referring to the second figure, in practice, the projection device 2 is a digital 18 processing device (Digital Light Processing, DLP for short), which has the advantages of high brightness, correct color tone reproducibility, fast response time, no noise, and the like. And the grating light 21 emitted by the central processing unit 42 is pre-processed into color (as shown in the fifth figure, the color map is as shown in the attached figure - the first C picture), and is formed on the workpiece 90 to be tested. The raster image 91 is also colored. The lens of the projection device 20 can further include a focusing lens 22 for matching the workpieces 90 of different sizes to control the projection device 20 to output the grating light 21 of different sizes.

The photographing device 30 is a Charge Coupled Device (CCD) camera, preferably a color camera. The three-dimensional contour reconstruction system using the color raster sub-pixel positioning and the single-screen switching of the single screen of the present invention further includes: a color raster number establishing module 421 for different stripes 901 of the raster image 91 of different serial numbers. RGB color combination. A color raster number reading module 422 is configured to correctly read the position of each color stripe 901 and reconstruct a correct three-dimensional contour of the workpiece 90 to be tested, and the color raster number establishing module 421 and the color raster number are read. Module 422 can be directly disposed on the central processing unit 42. An adjustment module 50 is configured to generate and adjust the density and brightness contrast of the raster lines of the grating to be projected (also referred to as the grating light 21). The adjustment module 50 can be directly disposed on the central processing unit 42, or It is replaced directly by the central processor 42. 19 200813394 . The advantages and effects of the present invention are summarized as follows: [1] The grating has the same contrast and is easy to distinguish. The grating light of the projection of the invention has the same contrast (for example, color), and when projected on the workpiece to be tested, even if the surface of the workpiece to be tested has irregularities, the raster image is curved, even when affected by the shadow of the workpiece to be tested, Each gate line position of the color grating can be correctly read by a color photographing device, and a precise three-dimensional image can be reconstructed. [2] The display has a switchable picture. The display device of the present invention has a switchable mother and daughter face, which has at least two functions: (a) can display a raster to be projected by the projection device, and can also display a raster image captured by the camera. (b) The focal length, aperture and depth of field of the photographic device can be directly and easily adjusted by the first display unit (ie, the sub-surface), so that the photographic device can capture a clear raster image and adjust the photographic device. After that, it can be turned off, and the reconstruction process of the three-dimensional contour is clearly presented in the second display portion of the full screen (ie, the mother face). [3] With adjustment module to adjust the grating light. The present invention is provided with an adjustment module for generating and adjusting the density and brightness contrast of the raster lines of the grating (which may be said to be grating light) to be applied to various workpieces to be tested. The present invention has been described in detail with reference to the preferred embodiments of the present invention. From the above detailed description, it will be apparent to those skilled in the art that the present invention can be achieved in accordance with the provisions of the Patent Law, and the patent application is filed. [Attachment 1] Figure 3 is a color diagram of the third diagram. Figure B is a color diagram of the fourth diagram. Figure C is a color diagram of the fifth diagram. [Simple diagram of the diagram] __ The first diagram is the three-dimensional contour of the present invention. The schematic diagram of the flow chart of the measurement method is the schematic diagram of the basic structure of the three-dimensional contour reconstruction system of the present invention. The third diagram is the schematic diagram of the grating light of the present invention projected onto the workpiece to be tested. FIG. 5 is a schematic view of a grating of the present invention. FIG. 6 is a schematic diagram of a stripe image of the present invention. FIG. 7 is a schematic diagram of the actual flow of the present invention. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 9 is a schematic diagram showing a gray scale distribution of a cross section AT of a predetermined stripe in an original image of the present invention. FIG. 11 is a schematic diagram showing a parabolic curve distribution analysis of the present invention. Schematic diagram of the projection on the workpiece to be tested. Figure 12 is a schematic diagram of the conventional grating light projected onto the workpiece to be tested. 21 200813394 422 color grating No. reading module - [schematic component symbol description] 11 preliminary step 13 capture image step 15 image processing step 20 projection device 22 focusing lens 40 central processing unit 411 first display portion I 42 central processor 90 to be tested workpiece 91 Raster Image 12 Projection Step 14 Image Fine Tuning Step 16 Reconstruction Step 21 Grating Light 30 Photographic Device 41 Display 412 Dimensional Display Unit 421 Color Grating Number Establishment Module 50 Adjustment Module 901 Stripe 22

Claims (1)

200813394 X. Patent application scope: 1. A two-dimensional contour measurement method using color raster sub-pixel positioning and single screen detection, including the following steps: 1. preliminary steps: preparing a projection device, a photographing device and a central processing unit; —····································································································· It consists of a plurality of stripes with the same contrast and different color components; 3. Capture the image step··Start the camera device, and capture the raster image from the workpiece to be tested; 4·5•Image fine adjustment step: the central processing unit Providing a display capable of simultaneously displaying a -first display portion and a second display portion, wherein the first display portion is at least operable to directly adjust a focal length, an aperture, and a depth of field of the photographing device to the first display portion Presenting a clear raster image, the first display portion is closed from the display, and the second display portion displays the raster image on the display in full screen; image processing step: the raster image is input by the central processing unit Perform image analysis, eliminate noise, and stripline thinning operations. 6. Reconstruction steps: The central processing unit utilizes parabola The curve distribution is analyzed and the exact point of the dare low/most southern gray scale distribution is obtained. At 23 200813394, each pixel point in the thinned image of each stripe is obtained, and then the thin lined stripe is used for the parabolic curve distribution fitting. The degree of bending of the stripe is determined, and the three-dimensional contour of the workpiece to be tested is obtained by phase shifting technique and phase reconstruction. 2 · A three-dimensional contour measurement method using color raster sub-pixel positioning and single-screen switching of a single screen as described in claim 1 of the patent scope, wherein: In the reconstruction step, different strips of different numbers on the raster image are combined with different RGB colors, and the position of each stripe is correctly read to reconstruct the three-dimensional contour of the workpiece to be tested. 3. The three-dimensional contour measuring method using the color raster sub-pixel positioning and the single-screen switching of the single screen as described in claim 1, wherein the central processing unit has at least: a central processing unit The display is electrically connected; the central processor is configured to pre-form a grating for the projection device to project the grating light. 4. The three-dimensional contour measuring method using color raster sub-pixel positioning and single-screen switching of a single screen as described in claim 3, wherein: the grating light is color, and the color combination includes at least: r, G, B, 1/2R, 1/2G, 1/2B, 1/3R, 1/3G, 1/3B, 1/4R, 1/4G, 1/4B, (1/2R+1/2G), (1/2R+1/2B), (1/2G+1/2B), ! (1/3R+1/3G), (1/3R+1/3B), (1/3G+1/3B) Etc., R, G, B are the three primary colors of color, assuming I is the total summed brightness value of each raster 24 200813394 • 'Color light thumbing enemy is produced by: / = [LPMxL6,ZiWx3] if 7^x3 &lt ;255 ? then R = Random[〇9 x3] ? i? e [〇? 255] else R = Random[〇, 255] ? 7? g [〇5 255] G = 3x1-R-Random[〇? 255 ] G g [〇? 255] 5 = 3χ/ — π — G , , 255]. 5. The three-dimensional contour measuring method using color raster sub-pixel positioning and single-screen switching of a single screen as described in claim 3, wherein the grating light is colored, and the color grating stripe is The production method is as follows: Define the highest color brightness as: Βη ξ Max{R, G, B) , Bn g [〇?255] Randomly select a allowable value and limit the maximum value of no value to 10,000/7 R - Randorr ^)^155\ if R > Bn,R = Bn _· Randomly select an f-value and limit the maximum value of C to 7 G = Random^), 255\ if G> Bn , G-Bn f The maximum value, if the value is 7, the value of Bewan can be a randomly selected value; if the maximum value of f and f is not 洳, then the value is Bn ·· 25 200813394 if{Max(R,G )=zBn,, B = Rand〇miQ, Bn, else B = Bn 6 three-dimensional contour reconstruction systems using 1-color raster sub-pixel positioning and single-screen sub-plane switching, including: • Technology device, system A grating light is emitted toward a workpiece to be tested. The grating light has a plurality of grid lines, and the contrast is the same. The grating light forms a raster image on the workpiece to be tested, and includes a plurality of stripes of different colors; a camera, an IV device for capturing the raster image from the workpiece to be tested; and a central processing unit comprising: A central processing unit performs image analysis, erasing/de-noising noise, and stripe thinning on the raster image, and the line distribution of the object (four) is more accurately determined to be lower and the highest gray scale distribution is obtained. · To each pixel point in the raster image after each stripe thinning, and then use the thin lined stripe to do the parabolic curve distribution fitting, find the degree of the maximum bow of the stripe, and match the phase shift technique and phase reconstruction to obtain the test a three-dimensional contour of the workpiece; j. A display is electrically connected to the central processing unit, and the display has at least two switching modes: [1] simultaneously displaying a first display portion and a second display portion. a raster image to be projected by the device and a raster image captured by the camera device; the first display portion can be used for at least a direct adjustment of the focal length and light of the camera device And depth; [2] In the second display unit to display the full screen raster image / three-dimensional contour. 7. A three-dimensional contour reconstruction system using color raster sub-pixel positioning and single screen picture switching as described in claim 6 wherein: ', the projection device is a digital light source processor; HI the camera device A color-sensing coupling camera. 8 · The three-dimensional corridor reconstruction system using the color raster sub-pixel positioning and the single-screen switching of the single screen as described in the sixth paragraph of the patent scope includes: 〃 ..., a 71-inch, a shirt-like image Stripes are given different RGB color combinations; »· 9 A color raster number reading module: used to read each color stripe, position, and reconstruct the correct three-dimensional wheel gallery of the workpiece to be tested: The group 'is used to generate and adjust the thumb line of the raster to be projected and the contrast of the light and dark, for the projection device to project the light green 0 2, the patent specification (4), 6 items, so that the (four) color grating sub-pixels are fixed in the middle and early f The three-dimensional contour reconstruction system of the child's face switching is not included in the lens, which is matched with the grating light of the same size. Control fine and shadow output is not 27