CN101781833B - Generation method of numerical control quilting processing procedure - Google Patents
Generation method of numerical control quilting processing procedure Download PDFInfo
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- CN101781833B CN101781833B CN2010101135351A CN201010113535A CN101781833B CN 101781833 B CN101781833 B CN 101781833B CN 2010101135351 A CN2010101135351 A CN 2010101135351A CN 201010113535 A CN201010113535 A CN 201010113535A CN 101781833 B CN101781833 B CN 101781833B
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Abstract
The invention relates to a generation method of a numerical control quilting processing procedure, comprising the following sequential steps: (1) adopting a camera to acquire digital image data and carrying out image preprocessing on the acquired digital image data; (2) drawing a guide line artificially, generating equal-interval detecting lines on the guide line, finding intersecting points with a pattern profile on the detecting lines, and organizing an intersecting point coordinate into a coordinate data linked list; (3) piecewise fitting coordinate data in the step (2) and forming a primitive data linked list; (4) adopting a three-order Hermite parameter curve as a connecting primitive to smoothly connect the primitive data linked list formed in the step (3), and filling the connecting primitive into the primitive data linked list; and (5) postprocessing the primitive data linked list formed in the step (4) into control commands of a numerical control quilting machine. The generation method adopts man-machine interaction to extract the profile of the fabric pattern directly, leads the quilting pattern formed finally to be coincided with the surface profile of textile fabrics, and increases the stereoscopic impression and vision appeal of the quilt product.
Description
Affiliated technical field
The present invention relates to the generation method of numerical control quilting processing procedure; The processing and the programming field that belong to numerical control quilting machine; Specifically be a kind of program creating method that can accurately carry out quilting processing according to the profile of fabric panel pattern, this method has increased the third dimension of quiited products.
Background technology
People often can use textiles with dissection in daily life, production; For example mattress, bed clothes etc.; These textiless generally are made up of the tire core that is positioned at interlayer and fabric panel two parts of parcel tire core, and as the tire material of tire core the branch of the wadding tire and the fibre that looses are arranged.The structure of diffusing fine shape tire material wherein and shape are unfixing, are prone to the group of contracting of flowing, and cause textiles in uneven thickness.To be adjacent to fixingly between outer fabric lining and the tire core in order making, to obtain the uniform interlayer textiles of thickness, with outer fabric lining and tire core stitching (comprising loop bonding), to form a kind of decorative pattern, the operation of this increase aesthetic feeling and practicality is called quilting; The pattern that suture forms is quilting pattern.
Present quilting adopts efficient high mostly, and easy to operate numerical control quilting machine is accomplished.The operation principle of numerical control quilting machine is: adopt mapping software drafting quilting patterns such as CAD, the profile of the quilting pattern that drafting is good is processed into the control routine of quilting machines, carries out quilting by quilting machines.Existing quilting pattern CAD design system can not be extracted the edge contour of lining pattern, and the quilting pattern that is designed can not coincide with the pattern on the lining.
Summary of the invention
The purpose of this invention is to provide a kind of program creating method that can accurately carry out quilting processing according to the profile of fabric panel pattern, this method has increased the third dimension of quiited products.
For solving above-mentioned technical problem, the present invention can realize through following technical scheme: a kind of generation method of numerical control quilting processing procedure is characterized in that: the step that comprises following order:
(1) the employing camera obtains the DID of the picture on surface of textiles to be processed, and this digital picture is carried out filtering noise and the image preliminary treatment of removing background color, to obtain the clear profile of image;
(2) in pretreated digital picture; The artificial profile trace of painting quilting along the pattern contour of quilting on computers with the mouse grass; This trace is called as guide line; Then with computer on guide line according to predefined length, at interval numerical value equally spaced generates a series of detection lines vertical with guide line, computer is sought the intersection point of itself and pattern contour on each bar detection line, and intersecting point coordinate is organized into the coordinate data chained list;
(3) coordinate data of piecewise fitting in (2) step forms the primitive data chained list;
(4) adopt three rank Hermite parameter curves as connecting the primitive data chained list that (3) step of pel smooth connection forms, and should connect pel and be filled in the primitive data chained list;
(5) the primitive data chained list post processing that (4) step was formed becomes the control instruction of numerical control quilting machine.
Method provided by the invention at first adopts camera directly to obtain the surface image of textiles and carry out preliminary treatment through (1) step.(2) step was drawn guide line then, owing to adopt artificial method of drawing, the staff can rule of thumb draw only guide line with the specific requirement of quilting pattern during concrete operations, and is not limited in the specific zone; Under the guiding of guide line, obtain the length and interval numerical value generation detection line that quilting pattern is freely set according to hope, finally obtain the coordinate data chain of the profile of digital picture.Adopt the coordinate data chain that obtains before (3) the step piecewise fitting then, adopt different pels to come match, the coordinate data chain is formed the most basic primitive data chained list to the distribution situation of coordinate; It is continuous that but this match is not necessarily, different according to the distributional pattern of coordinate, possibly occur between these straight lines, circular arc at interval; The primitive data chained list of filling the acquisition of (3) step through (4) step with three rank Hermite parameter curves again can obtain continuous primitive data chained list, finally obtains the control instruction of complete numerical control quilting machine; With beginning to carry out after this control instruction friendship quilting machines controller decoding.
The guide line in the present invention (2) step is a series of broken line collection, during drafting with the edge slip of mouse along image outline, the current coordinate figure of computer timing sampling mouse, and these coordinate figures are connected into broken line; Computer is chosen interval numerical value according to the predefined parameter of system and on this broken line, is inserted equally spaced coordinate points, does the detection line perpendicular to broken line through the coordinate points of above-mentioned insertion respectively again; Then, according to the required precision (setting value in advance) that detects each bar detection line is divided into the plurality of pixels point, the pixel value of these pixels is obtained by two-dimentional parabola interpolation method by the pixel value of the preset neighborhood of this pixel corresponding image; Ask the pixel difference of interpolating pixel point then along the detection line direction, the place is judged to be the border with the difference peak value, and borderline point coordinate data is organized into the coordinate chained list by the numerical control chained list stores and manage.
The pixel value of pixel is obtained by two-dimentional parabola interpolation method by the pixel value of 3 * 3 neighborhoods of this pixel corresponding image described in (2) step of the present invention.Select the pixel value of different neighborhoods, the amount of calculation that needs, real-time are all different, and numerical value is high more, and amount of calculation is just big more, and real-time is also poor more; Through experiment showed, the pixel value in 3 * 3 fields of selection, can amount of calculation be controlled at suitable scope, and obtain good real-time performance.
Image preliminary treatment described in the present invention (1) step comprises that one or more methods that adopt in image filtering, figure image intensifying, the image restoration handle digital picture; During practical operation; According to the different digital view data of obtaining; This view data is carried out independent image filtering or independent conventional image preliminary treatment such as figure image intensifying; Or DID carried out finally obtaining the clear profile of image like image filtering and two or more image pre-processing method of figure image intensifying.
The present invention adopted straight line, circular arc or parameter curve piecewise fitting coordinate data in (3) step; The lines of selecting to adapt to according to different coordinate data come match, obtain the primitive data chained list near the digital picture profile.
The present invention adopts the curve of three rank Hermite interpolation methods in the interval of adjacent graphical elements structure smooth transition (4) step.
Compared with prior art; The present invention has following beneficial effect: the present invention adopts man-machine interaction; Directly extract the profile of lining pattern; Generate the control routine (being the quilting track of numerical control quilting machine) of numerical control quilting machine after treatment, make the surface profile of final quilting pattern that forms and textiles coincide, increased the third dimension and the vision appeal of quiited products.
Description of drawings
Fig. 1 is that the present invention obtains the image after digital picture is carried out the threshold values filter preprocessing to camera;
Fig. 2 is the sketch map that boundary point extracts among Fig. 1;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is to the straight line of segmentation among Fig. 2, circular arc and parameter curve match and adopts the smooth movement locus sketch map that is connected the back generation of three rank Hermite parameter curves;
Fig. 5 conceals the movement locus sketch map after the image information among Fig. 4.
The specific embodiment
The embodiment of the generation method of numerical control quilting processing procedure of the present invention, it comprises the step of following order:
The first step: adopt camera to obtain the DID of the picture on surface of textiles to be processed; Because the quilting image in the present embodiment is fairly simple; This digital picture is carried out the image preliminary treatment of filtering noise and threshold values filtering removal background color, just can obtain the clear profile (as shown in Figure 1) of image.
Second step: in pretreated digital picture; Artificial hope that with the mouse edge edge slip grass of the pattern contour of quilting paints a series of broken line collection on computers; The current coordinate figure of computer timing sampling mouse, and these coordinate figures are connected into broken line, this broken line is called as guide line; Computer is chosen interval numerical value according to the predefined parameter of system and on this broken line, is inserted equally spaced coordinate points then, does the detection line perpendicular to broken line through the coordinate points of above-mentioned insertion respectively according to the predefined length of system again; Then, according to the required precision (setting value in advance) that detects each bar detection line is divided into the plurality of pixels point, the pixel value of these pixels is obtained by two-dimentional parabola interpolation method by the pixel value of 3 * 3 neighborhoods of this pixel corresponding image; Ask the pixel difference of interpolating pixel point then along the detection line direction, the place is judged to be the border with the difference peak value, and borderline point coordinate data is organized into the coordinate chained list by the numerical control chained list stores and manage.
The 3rd step was adopted straight line, circular arc or the coordinate data of parameter curve piecewise fitting in second step, formed the primitive data chained list.
The 4th step adopted three rank Hermite parameter curves as the curve that connects pel interval structure smooth transition adjacent in the adjacent graphical elements data link table that pel forms in the 3rd step, and should connect pel and be filled in the primitive data chained list; Fig. 4 is through (3), the movement locus of the generation of (4) step after handling.
The primitive data chained list post processing that the 5th step formed for the 4th step becomes the control instruction of numerical control quilting machine; The movement locus that image information among Fig. 4 is concealed the back acquisition is as shown in Figure 5, and its surface profile height with textiles is corresponding.
Through five steps of above-mentioned worker; The control instruction of the movement locus of the numerical control quilting machine that obtains at last; After numerical control quilting machine is deciphered through controller; Can carry out quilting along the picture on surface profile of textiles, make quilting pattern just in time be positioned at the profile place of textile surfaces image, increase the third dimension and the vision appeal of picture on surface.
Claims (6)
1. the generation method of a numerical-control quilting manufacturing procedure is characterized in that: the step that comprises following order:
(1) the employing camera obtains the DID of textile surfaces pattern to be processed, and this digital picture is carried out filtering noise and the image preliminary treatment of removing background color, to obtain the clear profile of image;
(2) in pretreated digital picture; The artificial profile trace of painting quilting along the pattern contour of quilting on computers with the mouse grass; This trace is called as guide line; Then with computer on guide line according to predefined length, at interval numerical value equally spaced generates a series of detection lines vertical with guide line, computer is sought the intersection point of itself and pattern contour on each bar detection line, and intersecting point coordinate is organized into the coordinate data chained list;
(3) coordinate data of piecewise fitting in (2) step forms the primitive data chained list;
(4) adopt three rank Hermite parameter curves as connecting the primitive data chained list that (3) step of pel smooth connection forms, and should connect pel and be filled in the primitive data chained list;
(5) the primitive data chained list post processing that (4) step was formed becomes the control instruction of numerical control quilting machine.
2. generation method according to claim 1; It is characterized in that: the guide line in (2) step is a series of broken line collection; Slide along the edge of image outline with mouse during drafting, the current coordinate figure of computer timing sampling mouse, and these coordinate figures are connected into broken line; Computer inserts equally spaced coordinate points according to the predetermined space parameter value of system on this broken line, do the detection line perpendicular to broken line through the coordinate points of above-mentioned insertion respectively again; Then, according to the required precision that detects each bar detection line is divided into the plurality of pixels point, the pixel value of these pixels is obtained by two-dimentional parabola interpolation method by the pixel value of the preset neighborhood of this pixel corresponding image; Ask the pixel difference of interpolating pixel point then along the detection line direction, the place is judged to be the border with the difference peak value, and borderline point coordinate data is organized into the coordinate chained list by data link table stores and manage.
3. generation method according to claim 2 is characterized in that: the pixel value of pixel is obtained by two-dimentional parabola interpolation method by the pixel value of 3 * 3 neighborhoods of this pixel corresponding image described in (2) step.
4. according to claim 1 or 3 described generation methods, it is characterized in that: the image preliminary treatment described in (1) step comprises that more than one methods that adopt in image filtering, figure image intensifying, the image restoration handle digital picture.
5. generation method according to claim 4 is characterized in that: (3) step was adopted straight line or parameter curve piecewise fitting coordinate data.
6. generation method according to claim 5 is characterized in that: (4) step was adopted the curve of three rank Hermite interpolation methods in the interval of adjacent graphical elements structure smooth transition.
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| CN104695139A (en) * | 2015-04-01 | 2015-06-10 | 华中科技大学 | Industrial sewing machine system and cut part sewing processing method by same |
| CN106283425B (en) * | 2015-05-22 | 2019-04-05 | 北京大豪科技股份有限公司 | Needle tracking generation method of sewing and device |
| CN106894169B (en) * | 2017-04-24 | 2022-06-24 | 朱旭云 | Method for designing surface texture of knitted fabric and molding equipment |
| CN109062223A (en) * | 2018-09-06 | 2018-12-21 | 智久(厦门)机器人科技有限公司上海分公司 | Method, apparatus, equipment and the storage medium in auto-control equipment moving path |
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| US5646861A (en) * | 1994-05-24 | 1997-07-08 | Shima Seiki Manufacturing Ltd. | Method and apparatus for inputting embroidery lines |
| CN1867723A (en) * | 2003-10-15 | 2006-11-22 | 株式会社岛精机制作所 | Embroidery data creation device, embroidery data creation method, and embroidery data creation program |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0852291A (en) * | 1994-08-11 | 1996-02-27 | Brother Ind Ltd | Embroidery data preparing device |
| JP3982717B2 (en) * | 1995-01-24 | 2007-09-26 | 蛇の目ミシン工業株式会社 | Embroidery pattern data generation apparatus and method for sewing machine capable of embroidery sewing |
| JP2850222B2 (en) * | 1996-06-24 | 1999-01-27 | 中小企業事業団 | Quilting method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5646861A (en) * | 1994-05-24 | 1997-07-08 | Shima Seiki Manufacturing Ltd. | Method and apparatus for inputting embroidery lines |
| CN1867723A (en) * | 2003-10-15 | 2006-11-22 | 株式会社岛精机制作所 | Embroidery data creation device, embroidery data creation method, and embroidery data creation program |
| US7386361B2 (en) * | 2003-10-15 | 2008-06-10 | Shima Seiki Manufacturing, Ltd. | Embroidery data creation device, embroidery data creation method, and embroidery data creation program |
Non-Patent Citations (3)
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| JP特开平10-5465A 1998.01.13 |
| JP特开平8-196759A 1996.08.06 |
| JP特开平8-52291A 1996.02.27 |
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